pre-release

For test running in 'local' dev dir we want to see loop devices there.
Also add missing notification to lvmetad after wipefs.

.gitignore

@@ -25,30 +25,19 @@ make.tmpl
 
 /autom4te.cache/
 /autoscan.log
-/build/
-/config.cache
 /config.log
 /config.status
 /configure.scan
 /cscope.*
 /html/
-/python/
 /reports/
 /tags
 /tmp/
 
-coverity/coverity_model.xml
-
-# gcov files:
-*.gcda
-*.gcno
 
 tools/man-generator
 tools/man-generator.c
 
-test/.lib-dir-stamp
-test/.tests-stamp
-test/lib/dmsecuretest
 test/lib/lvchange
 test/lib/lvconvert
 test/lib/lvcreate
@@ -73,7 +62,6 @@ test/lib/pvremove
 test/lib/pvresize
 test/lib/pvs
 test/lib/pvscan
-test/lib/securetest
 test/lib/vgcfgbackup
 test/lib/vgcfgrestore
 test/lib/vgchange

Makefile.in

@@ -18,7 +18,7 @@ top_builddir = @top_builddir@
 abs_top_builddir = @abs_top_builddir@
 abs_top_srcdir = @abs_top_srcdir@
 
-SUBDIRS = libdm conf daemons include lib libdaemon man scripts tools
+SUBDIRS = conf daemons include lib libdaemon libdm man scripts device_mapper tools
 
 ifeq ("@UDEV_RULES@", "yes")
   SUBDIRS += udev
@@ -28,6 +28,14 @@ ifeq ("@INTL@", "yes")
   SUBDIRS += po
 endif
 
+ifeq ("@APPLIB@", "yes")
+  SUBDIRS += liblvm
+endif
+
+ifeq ("@PYTHON_BINDINGS@", "yes")
+  SUBDIRS += python
+endif
+
 ifeq ($(MAKECMDGOALS),clean)
   SUBDIRS += test
 endif
@@ -35,7 +43,7 @@ endif
 ifeq ($(MAKECMDGOALS),distclean)
   SUBDIRS = conf include man test scripts \
     libdaemon lib tools daemons libdm \
-    udev po
+    udev po liblvm python device_mapper
 tools.distclean: test.distclean
 endif
 DISTCLEAN_DIRS += lcov_reports*
@@ -44,23 +52,28 @@ DISTCLEAN_TARGETS += config.cache config.log config.status make.tmpl
 include make.tmpl
 
 include $(top_srcdir)/base/Makefile
-include $(top_srcdir)/device_mapper/Makefile
-include $(top_srcdir)/test/unit/Makefile
 
-lib: libdaemon $(BASE_TARGET) $(DEVICE_MAPPER_TARGET)
+libdm: include $(top_builddir)/base/libbase.a
-daemons: lib libdaemon tools
+libdaemon: include $(top_builddir)/base/libbase.a
-scripts: lib
+lib: libdm libdaemon $(top_builddir)/base/libbase.a
-tools: lib libdaemon
+liblvm: lib $(top_builddir)/base/libbase.a
+daemons: lib libdaemon tools $(top_builddir)/base/libbase.a
+tools: lib libdaemon device-mapper $(top_builddir)/base/libbase.a
 po: tools daemons
 man: tools
 all_man: tools
-test: tools daemons
+scripts: liblvm libdm
-unit-test  run-unit-test: test
+test: tools daemons $(top_builddir)/base/libbase.a
+unit-test: lib $(top_builddir)/base/libbase.a
+run-unit-test: unit-test
 
+lib.device-mapper: include.device-mapper
+libdm.device-mapper: include.device-mapper
+liblvm.device-mapper: include.device-mapper
 daemons.device-mapper: libdm.device-mapper
 tools.device-mapper: libdm.device-mapper
+scripts.device-mapper: include.device-mapper
 device-mapper: tools.device-mapper daemons.device-mapper man.device-mapper
-device_mapper: device-mapper
 
 ifeq ("@INTL@", "yes")
 lib.pofile: include.pofile
@@ -70,22 +83,25 @@ po.pofile: tools.pofile daemons.pofile
 pofile: po.pofile
 endif
 
+ifeq ("@PYTHON_BINDINGS@", "yes")
+python: liblvm
+endif
+
 ifneq ("$(CFLOW_CMD)", "")
 tools.cflow: libdm.cflow lib.cflow
 daemons.cflow: tools.cflow
 cflow: include.cflow
 endif
 
-CSCOPE_DIRS = base daemons device_mapper include lib libdaemon scripts tools libdm test
 ifneq ("@CSCOPE_CMD@", "")
 cscope.out:
-	@CSCOPE_CMD@ -b -R $(patsubst %,-s%,$(addprefix $(srcdir)/,$(CSCOPE_DIRS)))
+	@CSCOPE_CMD@ -b -R -s$(top_srcdir)
 all: cscope.out
 endif
 DISTCLEAN_TARGETS += cscope.out
 CLEAN_DIRS += autom4te.cache
 
-check check_system check_cluster check_local check_lvmpolld check_lvmlockd_test check_lvmlockd_dlm check_lvmlockd_sanlock: test
+check check_system check_cluster check_local check_lvmetad check_lvmpolld check_lvmlockd_test check_lvmlockd_dlm check_lvmlockd_sanlock unit-test run-unit-test: test
 	$(MAKE) -C test $(@)
 
 conf.generate man.generate: tools
@@ -110,13 +126,13 @@ rpm: dist
 	$(LN_S) -f $(abs_top_srcdir)/spec/build.inc $(rpmbuilddir)/SOURCES
 	$(LN_S) -f $(abs_top_srcdir)/spec/macros.inc $(rpmbuilddir)/SOURCES
 	$(LN_S) -f $(abs_top_srcdir)/spec/packages.inc $(rpmbuilddir)/SOURCES
-	DM_VER=$$(cut -d- -f1 $(top_srcdir)/VERSION_DM);\
+	DM_VER=$$(cut -d' ' -f1 $(top_srcdir)/VERSION_DM | cut -d- -f1);\
-	GIT_VER=$$(cd $(top_srcdir); git describe | cut -d- --output-delimiter=. -f2,3 || echo 0);\
+	GIT_VER=$$(cd $(top_srcdir); git describe | cut -s -d- --output-delimiter=. -f2,3);\
-	$(SED) -e "s,\(device_mapper_version\) [0-9.]*$$,\1 $$DM_VER," \
+	sed -e "s,\(device_mapper_version\) [0-9.]*$$,\1 $$DM_VER," \
 	    -e "s,^\(Version:[^0-9%]*\)[0-9.]*$$,\1 $(LVM_VER)," \
-	    -e "s,^\(Release:[^0-9%]*\)[0-9.]\+,\1 $$GIT_VER," \
+	    -e "s,^\(Release:[^0-9%]*\)[0-9.]\+,\1 $${GIT_VER:-"0"}," \
 	    $(top_srcdir)/spec/source.inc >$(rpmbuilddir)/SOURCES/source.inc
-	V=$(V) rpmbuild -v --define "_topdir $(rpmbuilddir)" -ba $(top_srcdir)/spec/lvm2.spec
+	rpmbuild -v --define "_topdir $(rpmbuilddir)" -ba $(top_srcdir)/spec/lvm2.spec
 
 generate: conf.generate man.generate
 	$(MAKE) -C conf generate
@@ -147,36 +163,27 @@ install_systemd_units:
 install_all_man:
 	$(MAKE) -C man install_all_man
 
+ifeq ("@PYTHON_BINDINGS@", "yes")
+install_python_bindings:
+	$(MAKE) -C liblvm/python install_python_bindings
+endif
+
 install_tmpfiles_configuration:
 	$(MAKE) -C scripts install_tmpfiles_configuration
 
-help:
+LCOV_TRACES = libdm.info lib.info liblvm.info tools.info \
-	@echo -e "\nAvailable targets:"
+	libdaemon/client.info libdaemon/server.info \
-	@echo "  all			Default target."
+	test/unit.info \
-	@echo "  all_man		Build all man pages with generators."
+	daemons/clvmd.info \
-	@echo "  clean			Remove all compile files."
+	daemons/dmeventd.info \
-	@echo "  device-mapper		Device mapper part of lvm2."
+	daemons/lvmetad.info \
-	@echo "  dist			Generate distributable file."
+	daemons/lvmlockd.info \
-	@echo "  distclean		Remove all build files."
+	daemons/lvmpolld.info
-	@echo "  generate		Generate man pages for sources."
+
-	@echo "  help			Display callable targets."
+CLEAN_TARGETS += $(LCOV_TRACES)
-	@echo "  install		Install all files."
-	@echo "  install_all_man	Install all man pages."
-	@echo "  install_cluster	Install cmirrord."
-	@echo "  install_device-mapper	Install device mapper files."
-	@echo "  install_initscripts	Install initialization scripts."
-	@echo "  install_lvm2		Install lvm2 files."
-	@echo "  install_systemd_units	Install systemd units."
-	@echo "  lcov			Generate lcov output."
-	@echo "  lcov-dated		Generate lcov with timedate suffix."
-	@echo "  lcov-reset		Reset lcov counters"
-	@echo "  man			Build man pages."
-	@echo "  rpm			Build rpm."
-	@echo "  run-unit-test		Run unit tests."
-	@echo "  tags			Generate c/etags."
 
 ifneq ("$(LCOV)", "")
-.PHONY: lcov-reset lcov lcov-dated
+.PHONY: lcov-reset lcov lcov-dated $(LCOV_TRACES)
 
 ifeq ($(MAKECMDGOALS),lcov-dated)
 LCOV_REPORTS_DIR := lcov_reports-$(shell date +%Y%m%d%k%M%S)
@@ -186,10 +193,18 @@ LCOV_REPORTS_DIR := lcov_reports
 endif
 
 lcov-reset:
-	$(LCOV) --zerocounters --directory $(top_builddir)
+	$(LCOV) --zerocounters $(addprefix -d , $(basename $(LCOV_TRACES)))
+
+# maybe use subdirs processing to create tracefiles...
+$(LCOV_TRACES):
+	$(LCOV) -b $(basename $@) -d $(basename $@) \
+		--ignore-errors source -c -o - | $(SED) \
+		-e "s/\(dmeventd_lvm.[ch]\)/plugins\/lvm2\/\1/" \
+		-e "s/dmeventd_\(mirror\|snapshot\|thin\|raid\)\.c/plugins\/\1\/dmeventd_\1\.c/" \
+		>$@
 
 ifneq ("$(GENHTML)", "")
-lcov:
+lcov: $(LCOV_TRACES)
 	$(RM) -rf $(LCOV_REPORTS_DIR)
 	$(MKDIR_P) $(LCOV_REPORTS_DIR)
 	$(LCOV) --capture --directory $(top_builddir) --ignore-errors source \
@@ -201,11 +216,11 @@ endif
 
 endif
 
-ifneq ($(shell which ctags 2>/dev/null),)
+ifneq ($(shell which ctags),)
 .PHONY: tags
 tags:
-	test -z "$(shell find $(addprefix $(top_srcdir)/,$(CSCOPE_DIRS)) -type f -name '*.[ch]' -newer tags 2>/dev/null | head -1)" || $(RM) tags
+	test -z "$(shell find $(top_srcdir) -type f -name '*.[ch]' -newer tags 2>/dev/null | head -1)" || $(RM) tags
-	test -f tags || find $(addprefix $(top_srcdir)/,$(CSCOPE_DIRS)) -maxdepth 5 -type f -name '*.[ch]' -exec ctags -a '{}' +
+	test -f tags || find $(top_srcdir) -maxdepth 5 -type f -name '*.[ch]' -exec ctags -a '{}' +
 
 CLEAN_TARGETS += tags
 endif

README

@@ -1,7 +1,5 @@
 This tree contains the LVM2 and device-mapper tools and libraries.
 
-This is development branch, for stable 2.02 release see stable-2.02 branch.
-
 For more information about LVM2 read the changelog in the WHATS_NEW file.
 Installation instructions are in INSTALL.
 

VERSION

@@ -1 +1 @@
-2.03.16(2)-git (2022-02-07)
+2.02.188(2) (2021-05-07)

VERSION_DM

@@ -1 +1 @@
-1.02.185-git (2022-02-07)
+1.02.172 (2021-05-07)

WHATS_NEW

@@ -1,315 +1,152 @@
-Version 2.03.16 - 
+Version 2.02.188 - 07th May 2021
-====================================
+================================
-
-Version 2.03.15 - 07th February 2022
-====================================
-  Remove service based autoactivation. global/event_activation = 0 is NOOP.
-  Improve support for metadata profiles for --type writecache.
-  Use cache or active DM device when available with new kernels.
-  Introduce function to utilize UUIDs from DM_DEVICE_LIST.
-  Increase some hash table size to better support large device sets.
-
-Version 2.03.14 - 20th October 2021
-===================================
-  Device scanning is skipping directories on different filesystems.
-  Print info message with too many or too large archived files.
-  Reduce metadata readings during scanning phase.
-  Optimize computation of crc32 check sum with multiple PVs.
-  Enhance recover path on cache creation failure.
-  Filter out unsupported MQ/SMQ cache policy setting.
-  Fix memleak in mpath filter.
-  Support newer location for VDO statistics.
-  Add support for VDO async-unsafe write policy.
-  Improve lvm_import_vdo script.
-  Support VDO LV with lvcreate -ky.
-  Fix lvconvert for VDO LV bigger then 2T.
-  Create VDO LVs automatically without zeroing.
-  Rename vdoimport to lvm_import_vdo.
-
-Version 2.03.13 - 11th August 2021
-==================================
-  Changes in udev support:
-  - obtain_device_list_from_udev defaults to 0.
-  - see devices/external_device_info_source,
-    devices/obtain_device_list_from_udev, and devices/multipath_wwids_file help
-    in lvm.conf
-  Fix devices file handling of loop with deleted backing file.
-  Fix devices file handling of scsi_debug WWIDs.
-  Fix many static analysis issues.
-  Support --poolmetadataspare with vgsplit and vgmerge.
-  Fix detection of active components of external origin volume.
-  Add vdoimport tool to support conversion of VDO volumes.
-  Support configurable allocation/vdo_pool_header_size.
-  Fix handling of lvconvert --type vdo-pool --virtualsize.
-  Simplified handling of archive() and backup() internal calls.
-  Add 'idm' locking type for IDM lock manager.
-  Fix load of kvdo target when it is not present in memory (2.03.12).
-
-Version 2.03.12 - 07th May 2021
-===============================
-  Allow attaching cache to thin data volume.
-  Fix memleak when generating list of outdated pvs.
-  Better hyphenation usage in man pages.
-  Replace use of deprecated security_context_t with char*.
-  Configure supports AIO_LIBS and AIO_CFLAGS.
-  Improve build process for static builds.
-  New --setautoactivation option to modify LV or VG auto activation.
-  New metadata based autoactivation property for LVs and VGs.
-  Improve signal handling with lvmpolld.
-  Signal handler can interrupt command also for SIGTERM.
-  Lvreduce --yes support.
-  Add configure option --with/out-symvers for non-glibc builds.
-  Report error when the filesystem is missing on fsadm resized volume.
-  Handle better blockdev with --getsize64 support for fsadm.
-  Do not include editline/history.h when using editline library.
-  Support error and zero segtype for thin-pool data for testing.
-  Support mixed extension for striped, error and zero segtypes.
-  Support resize also for stacked virtual volumes.
-  Skip dm-zero devices just like with dm-error target.
-  Reduce ioctl() calls when checking target status.
-  Merge polling does not fail, when LV is found to be already merged.
-  Poll volumes with at least 100ms delays.
-  Do not flush dm cache when cached LV is going to be removed.
-  New lvmlockctl_kill_command configuration option.
-  Support interruption while waiting on device close before deactivation.
-  Flush thin-pool messages before removing more thin volumes.
-  Improve hash function with less collisions and make it faster.
-  Reduce ioctl count when deactivating volumes.
-  Reduce number of metadata parsing.
-  Enhance performance of lvremove and vgremove commands.
-  Support interruption when taking archive and backup.
-  Accelerate large lvremoves.
-  Speedup search for cached device nodes.
-  Speedup command initialization.
-  Add devices file feature, off by default for now.
-  Support extension of writecached volumes.
   Fix problem with unbound variable usage within fsadm.
-  Fix IMSM MD RAID detection on 4k devices.
-  Check for presence of VDO target before starting any conversion.
-  Support metatadata profiles with volume VDO pool conversions.
-  Support -Zn for conversion of already formated VDO pools.
   Avoid removing LVs on error path of lvconvert during creation volumes.
   Fix crashing lvdisplay when thin volume was waiting for merge.
   Support option --errorwhenfull when converting volume to thin-pool.
   Improve thin-performance profile support conversion to thin-pool.
-  Add workaround to avoid read of internal 'converted' devices.
-  Prohibit merging snapshot into the read-only thick snapshot origin.
-  Restore support for flipping rw/r permissions for thin snapshot origin.
   Support resize of cached volumes.
-  Disable autoactivation with global/event_activation=0.
-  Check if lvcreate passes read_only_volume_list with tags and skips zeroing.
   Allocation prints better error when metadata cannot fit on a single PV.
   Pvmove can better resolve full thin-pool tree move.
   Limit pool metadata spare to 16GiB.
-  Improves conversion and allocation of pool metadata.
+  Improves convertsion and allocation of pool metadata.
   Support thin pool metadata 15.88GiB, adds 64MiB, thin_pool_crop_metadata=0.
-  Enhance lvdisplay to report raid available/partial.
+  Enhance lvdisplay to report raid availiable/partial.
-  Support online rename of VDO pools.
+  Enhance error handling for fsadm and hanled correct fsck result.
-  Improve removal of pmspare when last pool is removed.
+  Stop logging rename errors from persintent filter.
-  Fix problem with wiping of converted LVs.
-  Fix memleak in scanning  (2.03.11).
-  Fix corner case allocation for thin-pools.
-
-Version 2.03.11 - 08th January 2021
-===================================
-  Fix pvck handling MDA at offset different from 4096.
-  Partial or degraded activation of writecache is not allowed.
-  Enhance error handling for fsadm and handle correct fsck result.
   Dmeventd lvm plugin ignores higher reserved_stack lvm.conf values.
   Support using BLKZEROOUT for clearing devices.
   Support interruption when wipping LVs.
+  Add configure --enable-editline support as an alternative to readline.
+  Zero pool metadata on allocation (disable with allocation/zero_metadata=0).
+  Failure in zeroing or wiping will fail command (bypass with -Zn, -Wn).
+  Fix support for lvconvert --repair used by foreign apps (i.e. Docker).
   Support interruption for bcache waiting.
   Fix bcache when device has too many failing writes.
   Fix bcache waiting for IO completion with failing disks.
   Configure use own python path name order to prefer using python3.
-  Add configure --enable-editline support as an alternative to readline.
   Enhance reporting and error handling when creating thin volumes.
-  Enable vgsplit for VDO volumes.
-  Lvextend of vdo pool volumes ensure at least 1 new VDO slab is added.
   Use revert_lv() on reload error path after vg_revert().
-  Configure --with-integrity enabled.
-  Restore lost signal blocking while VG lock is held.
   Improve estimation of needed extents when creating thin-pool.
   Use extra 1% when resizing thin-pool metadata LV with --use-policy.
   Enhance --use-policy percentage rounding.
-  Configure --with-vdo and --with-writecache as internal segments.
-  Improving VDO man page examples.
-  Allow pvmove of writecache origin.
-  Report integrity fields.
-  Integrity volumes defaults to journal mode.
   Switch code base to use flexible array syntax.
-  Fix 64bit math when calculation cachevol size.
   Preserve uint32_t for seqno handling.
   Switch from mmap to plain read when loading regular files.
-  Update lvmvdo man page and better explain DISCARD usage.
+  Fix running out of free buffers for async writing for larger writes.
-
-Version 2.03.10 - 09th August 2020
-==================================
-  Add writecache and integrity support to lvmdbusd.
-  Generate unique cachevol name when default required from lvcreate.
-  Converting RAID1 volume to one with same number of legs now succeeds with a
-  warning.
   Fix conversion to raid from striped lagging type.
   Fix conversion to 'mirrored' mirror log with larger regionsize.
-  Zero pool metadata on allocation (disable with allocation/zero_metadata=0).
-  Failure in zeroing or wiping will fail command (bypass with -Zn, -Wn).
-  Add lvcreate of new cache or writecache lv with single command.
-  Fix running out of free buffers for async writing for larger writes.
-  Add integrity with raid capability.
   Fix support for lvconvert --repair used by foreign apps (i.e. Docker).
 
-Version 2.03.09 - 26th March 2020
+Version 2.02.187 - 24th March 2020
-=================================
+==================================
-  Fix formating of vdopool (vdo_slab_size_mb was smaller by 2 bits).
-  Fix showing of a dm kernel error when uncaching a volume with cachevol.
-
-Version 2.03.08 - 11th February 2020
-====================================
-  Prevent problematic snapshots of writecache volumes.
-  Add error handling for failing allocation in _reserve_area().
-  Fix memleak in syncing of internal cache.
-  Fix pvck dump_current_text memleak.
-  Fix lvmlockd result code on error path for _query_lock_lv().
-  Update pvck man page and help output.
-  Reject invalid writecache high/low_watermark setting.
-  Report writecache status.
-  Accept more output lines from vdo_format.
-  Prohibit reshaping of stacked raid LVs.
   Avoid running cache input arg validation when creating vdo pool.
   Prevent raid reshaping of stacked volumes.
-  Added VDO lvmdbusd methods for enable/disable compression & dedupe.
-  Added VDO lvmdbusd method for converting LV to VDO pool.
-
-Version 2.03.07 - 30th November 2019
-====================================
-  Subcommand in vgck for repairing headers and metadata.
   Ensure minimum required region size on striped RaidLV creation.
   Fix resize of thin-pool with data and metadata of different segtype.
-  Improve mirror type leg splitting.
+  Fix splitting mirror leg in cluster.
-  Improve error path handling in daemons on shutdown.
   Fix activation order when removing merged snapshot.
-  Experimental VDO support for lvmdbusd.
-
-Version 2.03.06 - 23rd October 2019
-===================================
-  Add _cpool suffix to cache-pool LV name when used by caching LV.
-  No longer store extra UUID for cmeta and cdata cachevol layer.
-  Enhance activation of cache devices with cachevols.
-  Add _cvol in list of protected suffixes and start use it with DM UUID.
-  Rename LV converted to cachevol to use _cvol suffix.
-  Use normal LVs for wiping of cachevols.
-  Reload cleanered cache DM only with cleaner policy.
-  Fix cmd return when zeroing of cachevol fails.
-  Extend lvs to show all VDO properties.
-  Preserve VDO write policy with vdopool.
-  Increase default vdo bio threads to 4.
-  Continue report when cache_status fails.
   Add support for DM_DEVICE_GET_TARGET_VERSION into device_mapper.
-  Fix cmirrord usage of header files from device_mapper subdir.
+  Add lvextend-raid.sh to check on RaidLV extensions synchronization.
-  Allow standalone activation of VDO pool just like for thin-pools.
+  Fix lvmetad shutdown and avoid lenghty timeouts when rebooting system.
+  Prevent creating VGs with PVs with different logical block sizes.
+  Pvmove runs in exlusively activating mode for exclusively active LVs.
   Activate thin-pool layered volume as 'read-only' device.
   Ignore crypto devices with UUID signature CRYPT-SUBDEV.
   Enhance validation for thin and cache pool conversion and swapping.
+  Fixed activation on boot - lvm2 no longer activates incomplete VGs.
+
+Version 2.02.186 - 27th August 2019
+===================================
   Improve internal removal of cached devices.
   Synchronize with udev when dropping snapshot.
   Add missing device synchronization point before removing pvmove node.
   Correctly set read_ahead for LVs when pvmove is finished.
-  Remove unsupported OPTIONS+="event_timeout" udev rule from 11-dm-lvm.rules.
-  Prevent creating VGs with PVs with different logical block sizes.
   Fix metadata writes from corrupting with large physical block size.
-
-Version 2.03.05 - 15th June 2019
-================================
-  Fix command definition for pvchange -a.
-  Add vgck --updatemetadata command that will repair metadata problems.
-  Improve VG reading to work if one good copy of metadata is found.
-  Report/display/scan commands that read VGs will no longer write/repair.
-  Move metadata repairs from VG reading to VG writing.
-  Add config setting md_component_checks to control MD component checks.
-  Add end of device MD component checks when dev has no udev info.
-
-Version 2.03.04 - 10th June 2019
-================================
-  Remove unused_duplicate_devs from cmd causing segfault in dmeventd.
-
-Version 2.03.03 - 07th June 2019
-================================
   Report no_discard_passdown for cache LVs with lvs -o+kernel_discards.
-  Add pvck --dump option to extract metadata.
+  Prevent shared active mirror LVs with lvmlockd.
+
+Version 2.02.185 - 13th May 2019
+================================
+  Fix change of monitoring in clustered volumes.
+  Improve -lXXX%VG modifier which improves cache segment estimation.
+  Add synchronization with udev before removing cached devices.
+  Fix missing growth of _pmspare volume when extending _tmeta volume.
+  Automatically grow thin metadata, when thin data gets too big.
+  Add support for vgsplit with cached devices.
   Fix signal delivery checking race in libdaemon (lvmetad).
   Add missing Before=shutdown.target to LVM2 services to fix shutdown ordering.
-  Skip autoactivation for a PV when PV size does not match device size.
+
-  Remove first-pvscan-initialization which should no longer be needed.
+Version 2.02.184 - 22nd March 2019
-  Add remote refresh through lvmlockd/dlm for shared LVs after lvextend.
+==================================
-  Ignore foreign and shared PVs for pvscan online files.
+  Fix (de)activation of RaidLVs with visible SubLVs
-  Add config setting to control fields in debug file and verbose output.
-  Add command[pid] and timestamp to debug file and verbose output.
-  Fix missing growth of _pmsmare volume when extending _tmeta volume.
-  Automatically grow thin metadata, when thin data gets too big.
-  Add synchronization with udev before removing cached devices.
-  Add support for caching VDO LVs and VDOPOOL LVs.
-  Add support for vgsplit with cached devices.
-  Query mpath device only once per command for its state.
-  Use device INFO instead of STATUS when checking for mpath device uuid.
-  Change default io_memory_size from 4 to 8 MiB.
-  Add config setting io_memory_size to set bcache size.
-  Fix pvscan autoactivation for concurrent pvscans.
   Change scan_lvs default to 0 so LVs are not scanned for PVs.
-  Thin-pool selects power-of-2 chunk size by default.
+  Add scan_lvs config setting to control if lvm scans LVs for PVs.
-  Cache selects power-of-2 chunk size by default.
-  Support reszing for VDOPoolLV and VDOLV.
-  Improve -lXXX%VG modifier which improves cache segment estimation.
-  Ensure migration_threshold for cache is at least 8 chunks.
-  Restore missing man info lvcreate --zero for thin-pools.
-  Drop misleadning comment for metadata minimum_io_size for VDO segment.
-  Add device hints to reduce scanning.
-  Introduce LVM_SUPPRESS_SYSLOG to suppress syslog usage by generator.
-  Fix generator quering lvmconfig unpresent config option.
-  Fix memleak on bcache error path code.
-  Fix missing unlock on lvm2 dmeventd plugin error path initialization.
-  Improve Makefile dependency tracking.
-  Move VDO support towards V2 target (6.2) support.
-
-Version 2.03.02 - 18th December 2018
-====================================
   Fix missing proper initialization of pv_list struct when adding pv.
-  Fix (de)activation of RaidLVs with visible SubLVs.
+
-  Prohibit mirrored 'mirror' log via lvcreate and lvconvert.
+Version 2.02.183 - 07th December 2018
+=====================================
+  Avoid disabling lvmetad when repair does nothing.
+  Fix component detection for md version 0.90.
   Use sync io if async io_setup fails, or use_aio=0 is set in config.
-  Fix more issues reported by coverity scan.
+  Avoid opening devices to get block size by using existing open fd.
 
-Version 2.03.01 - 31st October 2018
+Version 2.02.182 - 30th October 2018
-===================================
+====================================
-
+  Fix possible write race between last metadata block and the first extent.
-Version 2.03.00 - 10th October 2018
+  Fix filtering of md 1.0 devices so they are not seen as duplicate PVs.
-===================================
-  Add hot fix to avoiding locking collision when monitoring thin-pools.
-  Allow raid4 -> linear conversion request.
   Fix lvconvert striped/raid0/raid0_meta -> raid6 regression.
-  Add 'lvm2-activation-generator:' prefix for kmsg messages logged by generator.
   Add After=rbdmap.service to {lvm2-activation-net,blk-availability}.service.
+  Fix pvs with lvmetad to avoid too many open files from filter reads.
+  Fix pvscan --cache to avoid too many open files from filter reads.
   Reduce max concurrent aios to avoid EMFILE with many devices.
   Fix lvconvert conversion attempts to linear.
   Fix lvconvert raid0/raid0_meta -> striped regression.
   Fix lvconvert --splitmirror for mirror type (2.02.178).
   Do not pair cache policy and cache metadata format.
-  lvconvert: reject conversions on raid1 LVs with split tracked SubLVs
+  Fix mirrors honoring read_only_volume_list.
-  lvconvert: reject conversions on raid1 split tracked SubLVs
+
-  Add basic creation support for VDO target.
+Version 2.02.181 - 01 August 2018
+=================================
+  Reject conversions on raid1 LVs with split tracked SubLVs.
+  Reject conversions on raid1 split tracked SubLVs.
+  Fix dmstats list failing when no regions exist.
+  Reject conversions of LVs under snapshot.
+  Limit suggested options on incorrect option for lvconvert subcommand.
+
+Version 2.02.180 - 19th July 2018
+=================================
   Never send any discard ioctl with test mode.
   Fix thin-pool alloc which needs same PV for data and metadata.
   Extend list of non-memlocked areas with newly linked libs.
   Enhance vgcfgrestore to check for active LVs in restored VG.
-  Configure supports --disable-silent-rules for verbose builds.
+  lvconvert: provide possible layouts between linear and striped/raid
   Fix unmonitoring of merging snapshots.
+  Add missing -l description in fsadm man page.
   Cache can uses metadata format 2 with cleaner policy.
-  Fix check if resized PV can also fit metadata area.
   Avoid showing internal error in lvs output or pvmoved LVs.
-  Remove clvmd
+  Fix check if resized PV can also fit metadata area.
-  Remove lvmlib (api)
+  Reopen devices RDWR only before writing to avoid udev issues.
-  Remove lvmetad
+  Change pvresize output confusing when no resize took place.
+  Fix lvmetad hanging on shutdown.
+  Fix mem leak in clvmd and more coverity issues.
+
+Version 2.02.179 - 18th June 2018
+=================================
+  Allow forced vgchange to lock type none on clustered VG.
+  Add the report field "shared".
+  Enable automatic metadata consistency repair on a shared VG.
+  Fix pvremove force on a PV with a shared VG.
+  Fixed vgimportclone of a PV with a shared VG.
+  Enable previously disallowed thin/cache commands in shared VGs.
+  Enable metadata-related changes on LVs active with shared lock.
+  Do not continue trying to use a device that cannot be opened.
+  Fix problems opening a device that fails and returns.
   Use versionsort to fix archive file expiry beyond 100000 files.
 
+Version 2.02.178 - 13th June 2018
+=================================
+
 Version 2.02.178-rc1 - 24th May 2018
 ====================================
   Add libaio dependency for build.
@@ -1827,7 +1664,7 @@ Version 2.02.105 - 20th January 2014
   Allow lvmetad to reuse stale socket.
   Only unlink lvmetad socket on error if created by the same process.
   Append missing newline to lvmetad missing socket path error message.
-  Check for non-zero alignment in _text_pv_add_metadata_area() to not div by 0.
+  Check for non-zero aligment in _text_pv_add_metadata_area() to not div by 0.
   Add allocation/use_blkid_wiping to lvm.conf to enable blkid wiping.
   Enable blkid_wiping by default if the blkid library is present.
   Add configure --disable-blkid_wiping to disable libblkid signature detection.

WHATS_NEW_DM

@@ -1,75 +1,36 @@
-Version 1.02.185 - 
+Version 1.02.172 - 07th May 2021
-=====================================
-
-Version 1.02.183 - 07th February 2022
-=====================================
-  Unmangle UUIDs for DM_DEVICE_LIST ioctl.
-
-Version 1.02.181 - 20th October 2021
-====================================
-  Add IMA support with 'dmsetup measure' command.
-  Add defines DM_NAME_LIST_FLAG_HAS_UUID, DM_NAME_LIST_FLAG_DOESNT_HAVE_UUID.
-  Enhance tracking of activated devices when preloading dm tree.
-  Fix bug in construction of cache table line (regression from 1.02.159).
-
-Version 1.02.179 - 11th August 2021
-===================================
-
-Version 1.02.177 - 07th May 2021
 ================================
-  Configure proceeds without libaio to allow build of device-mapper only.
-  Fix symbol versioning build with -O2 -flto.
   Add dm_tree_node_add_thin_pool_target_v1 with crop_metadata support.
-
-Version 1.02.175 - 08th January 2021
-====================================
-
-Version 1.02.173 - 09th August 2020
-===================================
   Add support for VDO in blkdeactivate script.
-
-Version 1.02.171 - 26th March 2020
-==================================
   Try to remove all created devices on dm preload tree error path.
   Fix dm_list interators with gcc 10 optimization (-ftree-pta).
   Dmeventd handles timer without looping on short intervals.
 
-Version 1.02.169 - 11th February 2020
+Version 1.02.170 - 24th March 2020
-=====================================
+==================================
-  Enhance error messages for device creation.
-
-Version 1.02.167 - 30th November 2019
-=====================================
-
-Version 1.02.165 - 23rd October 2019
-====================================
   Add support for DM_DEVICE_GET_TARGET_VERSION.
+
+Version 1.02.164 - 27th August 2019
+===================================
   Add debug of dmsetup udevcomplete with hexa print DM_COOKIE_COMPLETED.
   Fix versioning of dm_stats_create_region and dm_stats_create_region.
-
-Version 1.02.163 - 15th June 2019
-=================================
-
-Version 1.02.161 - 10th June 2019
-=================================
-
-Version 1.02.159 - 07th June 2019
-=================================
   Parsing of cache status understand no_discard_passdown.
-  Ensure migration_threshold for cache is at least 8 chunks.
 
-Version 1.02.155 - 18th December 2018
+Version 1.02.158 - 13th May 2019
-=====================================
+================================
-  Include correct internal header inside libdm list.c.
+
+Version 1.02.156 - 22nd March 2019
+==================================
+  Ensure migration_threshold for cache is at least 8 chunks.
   Enhance ioctl flattening and add parameters only when needed.
   Add DM_DEVICE_ARM_POLL for API completness matching kernel.
+
+Version 1.02.154 - 07th December 2018
+=====================================
   Do not add parameters for RESUME with DM_DEVICE_CREATE dm task.
   Fix dmstats report printing no output.
 
-Version 1.02.153 - 31st October 2018
+Version 1.02.152 - 30th October 2018
-====================================
-
-Version 1.02.151 - 10th October 2018
 ====================================
   Add hot fix to avoiding locking collision when monitoring thin-pools.
 
@@ -574,7 +535,7 @@ Version 1.02.86 - 23rd June 2014
   Add DM_REPORT_FIELD_TYPE_STRING_LIST: separate string and string list fields.
   Add dm_str_list to libdevmapper for string list type definition and its reuse.
   Add dmsetup -S/--select to define selection criteria for dmsetup reports.
-  Add dm_report_init_with_selection to initialize report with selection criteria.
+  Add dm_report_init_with_selection to intialize report with selection criteria.
   Add DM_REPORT_FIELD_TYPE_SIZE: separate number and size reporting fields.
   Use RemoveOnStop for dm-event.socket systemd unit.
   Document env var 'DM_DEFAULT_NAME_MANGLING_MODE' in dmsetup man page.

aclocal.m4

@@ -496,14 +496,12 @@ AC_DEFUN([AM_PATH_PYTHON],
     m4_default([$3], [AC_MSG_ERROR([no suitable Python interpreter found])])
   else
 
-  dnl Query Python for its version number.  Although site.py simply uses
+  dnl Query Python for its version number.  Getting [:3] seems to be
-  dnl sys.version[:3], printing that failed with Python 3.10, since the
+  dnl the best way to do this; it's what "site.py" does in the standard
-  dnl trailing zero was eliminated. So now we output just the major
+  dnl library.
-  dnl and minor version numbers, as numbers. Apparently the tertiary
-  dnl version is not of interest.
 
   AC_CACHE_CHECK([for $am_display_PYTHON version], [am_cv_python_version],
-    [am_cv_python_version=`$PYTHON -c "import sys; print('%u.%u' % sys.version_info[[:2]])"`])
+    [am_cv_python_version=`$PYTHON -c "import sys; sys.stdout.write(sys.version[[:3]])"`])
   AC_SUBST([PYTHON_VERSION], [$am_cv_python_version])
 
   dnl Use the values of $prefix and $exec_prefix for the corresponding

base/Makefile

@@ -18,8 +18,6 @@
 #       which defined all top_* variables
 
 BASE_SOURCE=\
-	base/data-struct/hash.c \
-	base/data-struct/list.c \
 	base/data-struct/radix-tree.c
 
 BASE_TARGET = base/libbase.a
@@ -35,6 +33,12 @@ $(BASE_TARGET): $(BASE_OBJECTS)
 	$(Q) $(RM) $@
 	$(Q) $(AR) rsv $@ $(BASE_OBJECTS) > /dev/null
 
+ifneq (,$(findstring $(MAKECMDGOALS),clean distclean))
+   BASE_SOURCE += \
+	base/data-struct/hash.c \
+	base/data-struct/list.c
+endif
+
 ifeq ("$(DEPENDS)","yes")
 -include $(BASE_DEPENDS)
 endif

base/data-struct/hash.c

@@ -1,477 +0,0 @@
-/*
- * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
- * Copyright (C) 2004-2011 Red Hat, Inc. All rights reserved.
- *
- * This file is part of the device-mapper userspace tools.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU Lesser General Public License v.2.1.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "device_mapper/misc/dmlib.h"
-#include "base/memory/zalloc.h"
-#include "hash.h"
-
-struct dm_hash_node {
-	struct dm_hash_node *next;
-	void *data;
-	unsigned data_len;
-	unsigned keylen;
-	unsigned hash;
-	char key[0];
-};
-
-struct dm_hash_table {
-	unsigned num_nodes;
-	unsigned num_hint;
-	unsigned mask_slots;    /* (slots - 1) -> used as hash mask */
-	unsigned collisions;    /* Collissions of hash keys */
-	unsigned search;        /* How many keys were searched */
-	unsigned found;         /* How many nodes were found */
-	unsigned same_hash;     /* Was there a colision with same masked hash and len ? */
-	struct dm_hash_node **slots;
-};
-
-#if 0 /* TO BE REMOVED */
-static unsigned _hash(const void *key, unsigned len)
-{
-	/* Permutation of the Integers 0 through 255 */
-	static unsigned char _nums[] = {
-	1, 14, 110, 25, 97, 174, 132, 119, 138, 170, 125, 118, 27, 233, 140, 51,
-	87, 197, 177, 107, 234, 169, 56, 68, 30, 7, 173, 73, 188, 40, 36, 65,
-	49, 213, 104, 190, 57, 211, 148, 223, 48, 115, 15, 2, 67, 186, 210, 28,
-	12, 181, 103, 70, 22, 58, 75, 78, 183, 167, 238, 157, 124, 147, 172,
-	144,
-	176, 161, 141, 86, 60, 66, 128, 83, 156, 241, 79, 46, 168, 198, 41, 254,
-	178, 85, 253, 237, 250, 154, 133, 88, 35, 206, 95, 116, 252, 192, 54,
-	221,
-	102, 218, 255, 240, 82, 106, 158, 201, 61, 3, 89, 9, 42, 155, 159, 93,
-	166, 80, 50, 34, 175, 195, 100, 99, 26, 150, 16, 145, 4, 33, 8, 189,
-	121, 64, 77, 72, 208, 245, 130, 122, 143, 55, 105, 134, 29, 164, 185,
-	194,
-	193, 239, 101, 242, 5, 171, 126, 11, 74, 59, 137, 228, 108, 191, 232,
-	139,
-	6, 24, 81, 20, 127, 17, 91, 92, 251, 151, 225, 207, 21, 98, 113, 112,
-	84, 226, 18, 214, 199, 187, 13, 32, 94, 220, 224, 212, 247, 204, 196,
-	43,
-	249, 236, 45, 244, 111, 182, 153, 136, 129, 90, 217, 202, 19, 165, 231,
-	71,
-	230, 142, 96, 227, 62, 179, 246, 114, 162, 53, 160, 215, 205, 180, 47,
-	109,
-	44, 38, 31, 149, 135, 0, 216, 52, 63, 23, 37, 69, 39, 117, 146, 184,
-	163, 200, 222, 235, 248, 243, 219, 10, 152, 131, 123, 229, 203, 76, 120,
-	209
-	};
-
-	const uint8_t *str = key;
-	unsigned h = 0, g;
-	unsigned i;
-
-	for (i = 0; i < len; i++) {
-		h <<= 4;
-		h += _nums[*str++];
-		g = h & ((unsigned) 0xf << 16u);
-		if (g) {
-			h ^= g >> 16u;
-			h ^= g >> 5u;
-		}
-	}
-
-	return h;
-}
-
-/* In-kernel DM hashing, still lots of collisions */
-static unsigned _hash_in_kernel(const char *key, unsigned len)
-{
-	const unsigned char *str = (unsigned char *)key;
-	const unsigned hash_mult = 2654435387U;
-	unsigned hash = 0, i;
-
-	for (i = 0; i < len; ++i)
-		hash = (hash + str[i]) * hash_mult;
-
-	return hash;
-}
-#endif
-
-#undef get16bits
-#if (defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__)))
-#define get16bits(d) (*((const uint16_t *) (d)))
-#endif
-
-#if !defined (get16bits)
-#define get16bits(d) ((((uint32_t)(((const uint8_t *)(d))[1])) << 8)\
-                       +(uint32_t)(((const uint8_t *)(d))[0]) )
-#endif
-
-/*
- * Adapted Bob Jenkins hash to read by 2 bytes if possible.
- * https://secure.wikimedia.org/wikipedia/en/wiki/Jenkins_hash_function
- *
- * Reduces amount of hash collisions
- */
-static unsigned _hash(const void *key, unsigned len)
-{
-	const uint8_t *str = (uint8_t*) key;
-	unsigned hash = 0, i;
-	unsigned sz = len / 2;
-
-	for(i = 0; i < sz; ++i) {
-		hash += get16bits(str + 2 * i);
-		hash += (hash << 10);
-		hash ^= (hash >> 6);
-	}
-
-	if (len & 1) {
-		hash += str[len - 1];
-		hash += (hash << 10);
-		hash ^= (hash >> 6);
-	}
-
-	hash += (hash << 3);
-	hash ^= (hash >> 11);
-	hash += (hash << 15);
-
-	return hash;
-}
-
-static struct dm_hash_node *_create_node(const void *key, unsigned len)
-{
-	struct dm_hash_node *n = malloc(sizeof(*n) + len);
-
-	if (n) {
-		memcpy(n->key, key, len);
-		n->keylen = len;
-	}
-
-	return n;
-}
-
-struct dm_hash_table *dm_hash_create(unsigned size_hint)
-{
-	size_t len;
-	unsigned new_size = 16u;
-	struct dm_hash_table *hc = zalloc(sizeof(*hc));
-
-	if (!hc) {
-		log_error("Failed to allocate memory for hash.");
-		return 0;
-	}
-
-	hc->num_hint = size_hint;
-
-	/* round size hint up to a power of two */
-	while (new_size < size_hint)
-		new_size = new_size << 1;
-
-	hc->mask_slots = new_size - 1;
-	len = sizeof(*(hc->slots)) * new_size;
-	if (!(hc->slots = zalloc(len))) {
-		free(hc);
-		log_error("Failed to allocate slots for hash.");
-		return 0;
-	}
-
-	return hc;
-}
-
-static void _free_nodes(struct dm_hash_table *t)
-{
-	struct dm_hash_node *c, *n;
-	unsigned i;
-
-#ifdef DEBUG
-	log_debug("Free hash hint:%d slots:%d nodes:%d (s:%d f:%d c:%d h:%d)",
-		  t->num_hint, t->mask_slots + 1, t->num_nodes,
-		  t->search, t->found, t->collisions, t->same_hash);
-#endif
-
-	if (!t->num_nodes)
-		return;
-
-	for (i = 0; i <= t->mask_slots; i++)
-		for (c = t->slots[i]; c; c = n) {
-			n = c->next;
-			free(c);
-		}
-}
-
-void dm_hash_destroy(struct dm_hash_table *t)
-{
-	_free_nodes(t);
-	free(t->slots);
-	free(t);
-}
-
-static struct dm_hash_node **_findh(struct dm_hash_table *t, const void *key,
-				    uint32_t len, unsigned hash)
-{
-	struct dm_hash_node **c;
-
-	++t->search;
-	for (c = &t->slots[hash & t->mask_slots]; *c; c = &((*c)->next)) {
-		if ((*c)->keylen == len && (*c)->hash == hash) {
-			if (!memcmp(key, (*c)->key, len)) {
-				++t->found;
-				break;
-			}
-			++t->same_hash;
-		}
-		++t->collisions;
-	}
-
-	return c;
-}
-
-static struct dm_hash_node **_find(struct dm_hash_table *t, const void *key,
-				   uint32_t len)
-{
-	return _findh(t, key, len, _hash(key, len));
-}
-
-void *dm_hash_lookup_binary(struct dm_hash_table *t, const void *key,
-			    uint32_t len)
-{
-	struct dm_hash_node **c = _find(t, key, len);
-
-	return *c ? (*c)->data : 0;
-}
-
-int dm_hash_insert_binary(struct dm_hash_table *t, const void *key,
-			  uint32_t len, void *data)
-{
-	unsigned hash = _hash(key, len);
-	struct dm_hash_node **c = _findh(t, key, len, hash);
-
-	if (*c)
-		(*c)->data = data;
-	else {
-		struct dm_hash_node *n = _create_node(key, len);
-
-		if (!n)
-			return 0;
-
-		n->data = data;
-		n->hash = hash;
-		n->next = 0;
-		*c = n;
-		t->num_nodes++;
-	}
-
-	return 1;
-}
-
-void dm_hash_remove_binary(struct dm_hash_table *t, const void *key,
-			uint32_t len)
-{
-	struct dm_hash_node **c = _find(t, key, len);
-
-	if (*c) {
-		struct dm_hash_node *old = *c;
-		*c = (*c)->next;
-		free(old);
-		t->num_nodes--;
-	}
-}
-
-void *dm_hash_lookup(struct dm_hash_table *t, const char *key)
-{
-	return dm_hash_lookup_binary(t, key, strlen(key) + 1);
-}
-
-int dm_hash_insert(struct dm_hash_table *t, const char *key, void *data)
-{
-	return dm_hash_insert_binary(t, key, strlen(key) + 1, data);
-}
-
-void dm_hash_remove(struct dm_hash_table *t, const char *key)
-{
-	dm_hash_remove_binary(t, key, strlen(key) + 1);
-}
-
-static struct dm_hash_node **_find_str_with_val(struct dm_hash_table *t,
-					        const void *key, const void *val,
-					        uint32_t len, uint32_t val_len)
-{
-	struct dm_hash_node **c;
-	unsigned h;
-       
-	h = _hash(key, len) & t->mask_slots;
-
-	for (c = &t->slots[h]; *c; c = &((*c)->next)) {
-		if ((*c)->keylen != len)
-			continue;
-
-		if (!memcmp(key, (*c)->key, len) && (*c)->data) {
-			if (((*c)->data_len == val_len) &&
-			    !memcmp(val, (*c)->data, val_len))
-				return c;
-		}
-	}
-
-	return NULL;
-}
-
-int dm_hash_insert_allow_multiple(struct dm_hash_table *t, const char *key,
-				  const void *val, uint32_t val_len)
-{
-	struct dm_hash_node *n;
-	struct dm_hash_node *first;
-	int len = strlen(key) + 1;
-	unsigned h;
-
-	n = _create_node(key, len);
-	if (!n)
-		return 0;
-
-	n->data = (void *)val;
-	n->data_len = val_len;
-
-	h = _hash(key, len) & t->mask_slots;
-
-	first = t->slots[h];
-
-	if (first)
-		n->next = first;
-	else
-		n->next = 0;
-	t->slots[h] = n;
-
-	t->num_nodes++;
-	return 1;
-}
-
-/*
- * Look through multiple entries with the same key for one that has a
- * matching val and return that.  If none have maching val, return NULL.
- */
-void *dm_hash_lookup_with_val(struct dm_hash_table *t, const char *key,
-			      const void *val, uint32_t val_len)
-{
-	struct dm_hash_node **c;
-
-	c = _find_str_with_val(t, key, val, strlen(key) + 1, val_len);
-
-	return (c && *c) ? (*c)->data : 0;
-}
-
-/*
- * Look through multiple entries with the same key for one that has a
- * matching val and remove that.
- */
-void dm_hash_remove_with_val(struct dm_hash_table *t, const char *key,
-			     const void *val, uint32_t val_len)
-{
-	struct dm_hash_node **c;
-
-	c = _find_str_with_val(t, key, val, strlen(key) + 1, val_len);
-
-	if (c && *c) {
-		struct dm_hash_node *old = *c;
-		*c = (*c)->next;
-		free(old);
-		t->num_nodes--;
-	}
-}
-
-/*
- * Look up the value for a key and count how many
- * entries have the same key.
- *
- * If no entries have key, return NULL and set count to 0.
- *
- * If one entry has the key, the function returns the val,
- * and sets count to 1.
- *
- * If N entries have the key, the function returns the val
- * from the first entry, and sets count to N.
- */
-void *dm_hash_lookup_with_count(struct dm_hash_table *t, const char *key, int *count)
-{
-	struct dm_hash_node **c;
-	struct dm_hash_node **c1 = NULL;
-	uint32_t len = strlen(key) + 1;
-	unsigned h;
-
-	*count = 0;
-
-	h = _hash(key, len) & t->mask_slots;
-
-	for (c = &t->slots[h]; *c; c = &((*c)->next)) {
-		if ((*c)->keylen != len)
-			continue;
-
-		if (!memcmp(key, (*c)->key, len)) {
-			(*count)++;
-			if (!c1)
-				c1 = c;
-		}
-	}
-
-	if (!c1)
-		return NULL;
-	else
-		return *c1 ? (*c1)->data : 0;
-}
-
-unsigned dm_hash_get_num_entries(struct dm_hash_table *t)
-{
-	return t->num_nodes;
-}
-
-void dm_hash_iter(struct dm_hash_table *t, dm_hash_iterate_fn f)
-{
-	struct dm_hash_node *c, *n;
-	unsigned i;
-
-	for (i = 0; i <= t->mask_slots; i++)
-		for (c = t->slots[i]; c; c = n) {
-			n = c->next;
-			f(c->data);
-		}
-}
-
-void dm_hash_wipe(struct dm_hash_table *t)
-{
-	_free_nodes(t);
-	memset(t->slots, 0, sizeof(struct dm_hash_node *) * (t->mask_slots + 1));
-	t->num_nodes = t->collisions = t->search = t->same_hash = 0u;
-}
-
-char *dm_hash_get_key(struct dm_hash_table *t __attribute__((unused)),
-		      struct dm_hash_node *n)
-{
-	return n->key;
-}
-
-void *dm_hash_get_data(struct dm_hash_table *t __attribute__((unused)),
-		       struct dm_hash_node *n)
-{
-	return n->data;
-}
-
-static struct dm_hash_node *_next_slot(struct dm_hash_table *t, unsigned s)
-{
-	struct dm_hash_node *c = NULL;
-	unsigned i;
-
-	for (i = s; i <= t->mask_slots && !c; i++)
-		c = t->slots[i];
-
-	return c;
-}
-
-struct dm_hash_node *dm_hash_get_first(struct dm_hash_table *t)
-{
-	return _next_slot(t, 0);
-}
-
-struct dm_hash_node *dm_hash_get_next(struct dm_hash_table *t, struct dm_hash_node *n)
-{
-	return n->next ? n->next : _next_slot(t, (n->hash & t->mask_slots) + 1);
-}

base/data-struct/hash.h

@@ -1,94 +0,0 @@
-#ifndef BASE_DATA_STRUCT_HASH_H
-#define BASE_DATA_STRUCT_HASH_H
-
-#include <stdint.h>
-
-//----------------------------------------------------------------
-
-struct dm_hash_table;
-struct dm_hash_node;
-
-typedef void (*dm_hash_iterate_fn) (void *data);
-
-struct dm_hash_table *dm_hash_create(unsigned size_hint)
-	__attribute__((__warn_unused_result__));
-void dm_hash_destroy(struct dm_hash_table *t);
-void dm_hash_wipe(struct dm_hash_table *t);
-
-void *dm_hash_lookup(struct dm_hash_table *t, const char *key);
-int dm_hash_insert(struct dm_hash_table *t, const char *key, void *data);
-void dm_hash_remove(struct dm_hash_table *t, const char *key);
-
-void *dm_hash_lookup_binary(struct dm_hash_table *t, const void *key, uint32_t len);
-int dm_hash_insert_binary(struct dm_hash_table *t, const void *key, uint32_t len,
-			  void *data);
-void dm_hash_remove_binary(struct dm_hash_table *t, const void *key, uint32_t len);
-
-unsigned dm_hash_get_num_entries(struct dm_hash_table *t);
-void dm_hash_iter(struct dm_hash_table *t, dm_hash_iterate_fn f);
-
-char *dm_hash_get_key(struct dm_hash_table *t, struct dm_hash_node *n);
-void *dm_hash_get_data(struct dm_hash_table *t, struct dm_hash_node *n);
-struct dm_hash_node *dm_hash_get_first(struct dm_hash_table *t);
-struct dm_hash_node *dm_hash_get_next(struct dm_hash_table *t, struct dm_hash_node *n);
-
-/*
- * dm_hash_insert() replaces the value of an existing
- * entry with a matching key if one exists.  Otherwise
- * it adds a new entry.
- *
- * dm_hash_insert_with_val() inserts a new entry if
- * another entry with the same key already exists.
- * val_len is the size of the data being inserted.
- *
- * If two entries with the same key exist,
- * (added using dm_hash_insert_allow_multiple), then:
- * . dm_hash_lookup() returns the first one it finds, and
- *   dm_hash_lookup_with_val() returns the one with a matching
- *   val_len/val.
- * . dm_hash_remove() removes the first one it finds, and
- *   dm_hash_remove_with_val() removes the one with a matching
- *   val_len/val.
- *
- * If a single entry with a given key exists, and it has
- * zero val_len, then:
- * . dm_hash_lookup() returns it
- * . dm_hash_lookup_with_val(val_len=0) returns it
- * . dm_hash_remove() removes it
- * . dm_hash_remove_with_val(val_len=0) removes it
- *
- * dm_hash_lookup_with_count() is a single call that will
- * both lookup a key's value and check if there is more
- * than one entry with the given key.
- *
- * (It is not meant to retrieve all the entries with the
- * given key.  In the common case where a single entry exists
- * for the key, it is useful to have a single call that will
- * both look up the value and indicate if multiple values
- * exist for the key.)
- *
- * dm_hash_lookup_with_count:
- * . If no entries exist, the function returns NULL, and
- *   the count is set to 0.
- * . If only one entry exists, the value of that entry is
- *   returned and count is set to 1.
- * . If N entries exists, the value of the first entry is
- *   returned and count is set to N.
- */
-
-void *dm_hash_lookup_with_val(struct dm_hash_table *t, const char *key,
-                              const void *val, uint32_t val_len);
-void dm_hash_remove_with_val(struct dm_hash_table *t, const char *key,
-                             const void *val, uint32_t val_len);
-int dm_hash_insert_allow_multiple(struct dm_hash_table *t, const char *key,
-                                  const void *val, uint32_t val_len);
-void *dm_hash_lookup_with_count(struct dm_hash_table *t, const char *key, int *count);
-
-
-#define dm_hash_iterate(v, h) \
-	for (v = dm_hash_get_first((h)); v; \
-	     v = dm_hash_get_next((h), v))
-
-//----------------------------------------------------------------
-
-#endif

base/data-struct/list.c

@@ -1,170 +0,0 @@
-/*
- * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
- * Copyright (C) 2004-2010 Red Hat, Inc. All rights reserved.
- *
- * This file is part of LVM2.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU Lesser General Public License v.2.1.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "list.h"
-
-#include <assert.h>
-#include <stdlib.h>
-
-/*
- * Initialise a list before use.
- * The list head's next and previous pointers point back to itself.
- */
-void dm_list_init(struct dm_list *head)
-{
-	head->n = head->p = head;
-}
-
-/*
- * Insert an element before 'head'.
- * If 'head' is the list head, this adds an element to the end of the list.
- */
-void dm_list_add(struct dm_list *head, struct dm_list *elem)
-{
-	assert(head->n);
-
-	elem->n = head;
-	elem->p = head->p;
-
-	head->p->n = elem;
-	head->p = elem;
-}
-
-/*
- * Insert an element after 'head'.
- * If 'head' is the list head, this adds an element to the front of the list.
- */
-void dm_list_add_h(struct dm_list *head, struct dm_list *elem)
-{
-	assert(head->n);
-
-	elem->n = head->n;
-	elem->p = head;
-
-	head->n->p = elem;
-	head->n = elem;
-}
-
-/*
- * Delete an element from its list.
- * Note that this doesn't change the element itself - it may still be safe
- * to follow its pointers.
- */
-void dm_list_del(struct dm_list *elem)
-{
-	elem->n->p = elem->p;
-	elem->p->n = elem->n;
-}
-
-/*
- * Remove an element from existing list and insert before 'head'.
- */
-void dm_list_move(struct dm_list *head, struct dm_list *elem)
-{
-        dm_list_del(elem);
-        dm_list_add(head, elem);
-}
-
-/*
- * Is the list empty?
- */
-int dm_list_empty(const struct dm_list *head)
-{
-	return head->n == head;
-}
-
-/*
- * Is this the first element of the list?
- */
-int dm_list_start(const struct dm_list *head, const struct dm_list *elem)
-{
-	return elem->p == head;
-}
-
-/*
- * Is this the last element of the list?
- */
-int dm_list_end(const struct dm_list *head, const struct dm_list *elem)
-{
-	return elem->n == head;
-}
-
-/*
- * Return first element of the list or NULL if empty
- */
-struct dm_list *dm_list_first(const struct dm_list *head)
-{
-	return (dm_list_empty(head) ? NULL : head->n);
-}
-
-/*
- * Return last element of the list or NULL if empty
- */
-struct dm_list *dm_list_last(const struct dm_list *head)
-{
-	return (dm_list_empty(head) ? NULL : head->p);
-}
-
-/*
- * Return the previous element of the list, or NULL if we've reached the start.
- */
-struct dm_list *dm_list_prev(const struct dm_list *head, const struct dm_list *elem)
-{
-	return (dm_list_start(head, elem) ? NULL : elem->p);
-}
-
-/*
- * Return the next element of the list, or NULL if we've reached the end.
- */
-struct dm_list *dm_list_next(const struct dm_list *head, const struct dm_list *elem)
-{
-	return (dm_list_end(head, elem) ? NULL : elem->n);
-}
-
-/*
- * Return the number of elements in a list by walking it.
- */
-unsigned int dm_list_size(const struct dm_list *head)
-{
-	unsigned int s = 0;
-	const struct dm_list *v;
-
-	dm_list_iterate(v, head)
-	    s++;
-
-	return s;
-}
-
-/*
- * Join two lists together.
- * This moves all the elements of the list 'head1' to the end of the list
- * 'head', leaving 'head1' empty.
- */
-void dm_list_splice(struct dm_list *head, struct dm_list *head1)
-{
-	assert(head->n);
-	assert(head1->n);
-
-	if (dm_list_empty(head1))
-	    return;
-
-	head1->p->n = head;
-	head1->n->p = head->p;
-
-	head->p->n = head1->n;
-	head->p = head1->p;
-
-	dm_list_init(head1);
-}

base/data-struct/list.h

@@ -1,211 +0,0 @@
-#ifndef BASE_DATA_STRUCT_LIST_H
-#define BASE_DATA_STRUCT_LIST_H
-
-#include "base/memory/container_of.h"
-
-//----------------------------------------------------------------
-
-/*
- * A list consists of a list head plus elements.
- * Each element has 'next' and 'previous' pointers.
- * The list head's pointers point to the first and the last element.
- */
-
-struct dm_list {
-	struct dm_list *n, *p;
-};
-
-/*
- * String list.
- */
-struct dm_str_list {
-	struct dm_list list;
-	const char *str;
-};
-
-/*
- * Initialise a list before use.
- * The list head's next and previous pointers point back to itself.
- */
-#define DM_LIST_HEAD_INIT(name)	 { &(name), &(name) }
-#define DM_LIST_INIT(name)	struct dm_list name = DM_LIST_HEAD_INIT(name)
-void dm_list_init(struct dm_list *head);
-
-/*
- * Insert an element before 'head'.
- * If 'head' is the list head, this adds an element to the end of the list.
- */
-void dm_list_add(struct dm_list *head, struct dm_list *elem);
-
-/*
- * Insert an element after 'head'.
- * If 'head' is the list head, this adds an element to the front of the list.
- */
-void dm_list_add_h(struct dm_list *head, struct dm_list *elem);
-
-/*
- * Delete an element from its list.
- * Note that this doesn't change the element itself - it may still be safe
- * to follow its pointers.
- */
-void dm_list_del(struct dm_list *elem);
-
-/*
- * Remove an element from existing list and insert before 'head'.
- */
-void dm_list_move(struct dm_list *head, struct dm_list *elem);
-
-/*
- * Join 'head1' to the end of 'head'.
- */
-void dm_list_splice(struct dm_list *head, struct dm_list *head1);
-
-/*
- * Is the list empty?
- */
-int dm_list_empty(const struct dm_list *head);
-
-/*
- * Is this the first element of the list?
- */
-int dm_list_start(const struct dm_list *head, const struct dm_list *elem);
-
-/*
- * Is this the last element of the list?
- */
-int dm_list_end(const struct dm_list *head, const struct dm_list *elem);
-
-/*
- * Return first element of the list or NULL if empty
- */
-struct dm_list *dm_list_first(const struct dm_list *head);
-
-/*
- * Return last element of the list or NULL if empty
- */
-struct dm_list *dm_list_last(const struct dm_list *head);
-
-/*
- * Return the previous element of the list, or NULL if we've reached the start.
- */
-struct dm_list *dm_list_prev(const struct dm_list *head, const struct dm_list *elem);
-
-/*
- * Return the next element of the list, or NULL if we've reached the end.
- */
-struct dm_list *dm_list_next(const struct dm_list *head, const struct dm_list *elem);
-
-/*
- * Given the address v of an instance of 'struct dm_list' called 'head'
- * contained in a structure of type t, return the containing structure.
- */
-#define dm_list_struct_base(v, t, head) \
-    container_of(v, t, head)
-
-/*
- * Given the address v of an instance of 'struct dm_list list' contained in
- * a structure of type t, return the containing structure.
- */
-#define dm_list_item(v, t) dm_list_struct_base((v), t, list)
-
-/*
- * Given the address v of one known element e in a known structure of type t,
- * return another element f.
- */
-#define dm_struct_field(v, t, e, f) \
-    (((t *)((uintptr_t)(v) - offsetof(t, e)))->f)
-
-/*
- * Given the address v of a known element e in a known structure of type t,
- * return the list head 'list'
- */
-#define dm_list_head(v, t, e) dm_struct_field(v, t, e, list)
-
-/*
- * Set v to each element of a list in turn.
- */
-#define dm_list_iterate(v, head) \
-	for (v = (head)->n; v != head; v = v->n)
-
-/*
- * Set v to each element in a list in turn, starting from the element
- * in front of 'start'.
- * You can use this to 'unwind' a list_iterate and back out actions on
- * already-processed elements.
- * If 'start' is 'head' it walks the list backwards.
- */
-#define dm_list_uniterate(v, head, start) \
-	for (v = (start)->p; v != head; v = v->p)
-
-/*
- * A safe way to walk a list and delete and free some elements along
- * the way.
- * t must be defined as a temporary variable of the same type as v.
- */
-#define dm_list_iterate_safe(v, t, head) \
-	for (v = (head)->n, t = v->n; v != head; v = t, t = v->n)
-
-/*
- * Walk a list, setting 'v' in turn to the containing structure of each item.
- * The containing structure should be the same type as 'v'.
- * The 'struct dm_list' variable within the containing structure is 'field'.
- */
-#define dm_list_iterate_items_gen(v, head, field) \
-	for (v = dm_list_struct_base((head)->n, __typeof__(*v), field); \
-	     &v->field != (head); \
-	     v = dm_list_struct_base(v->field.n, __typeof__(*v), field))
-
-/*
- * Walk a list, setting 'v' in turn to the containing structure of each item.
- * The containing structure should be the same type as 'v'.
- * The list should be 'struct dm_list list' within the containing structure.
- */
-#define dm_list_iterate_items(v, head) dm_list_iterate_items_gen(v, (head), list)
-
-/*
- * Walk a list, setting 'v' in turn to the containing structure of each item.
- * The containing structure should be the same type as 'v'.
- * The 'struct dm_list' variable within the containing structure is 'field'.
- * t must be defined as a temporary variable of the same type as v.
- */
-#define dm_list_iterate_items_gen_safe(v, t, head, field) \
-	for (v = dm_list_struct_base((head)->n, __typeof__(*v), field), \
-	     t = dm_list_struct_base(v->field.n, __typeof__(*v), field); \
-	     &v->field != (head); \
-	     v = t, t = dm_list_struct_base(v->field.n, __typeof__(*v), field))
-/*
- * Walk a list, setting 'v' in turn to the containing structure of each item.
- * The containing structure should be the same type as 'v'.
- * The list should be 'struct dm_list list' within the containing structure.
- * t must be defined as a temporary variable of the same type as v.
- */
-#define dm_list_iterate_items_safe(v, t, head) \
-	dm_list_iterate_items_gen_safe(v, t, (head), list)
-
-/*
- * Walk a list backwards, setting 'v' in turn to the containing structure
- * of each item.
- * The containing structure should be the same type as 'v'.
- * The 'struct dm_list' variable within the containing structure is 'field'.
- */
-#define dm_list_iterate_back_items_gen(v, head, field) \
-	for (v = dm_list_struct_base((head)->p, __typeof__(*v), field); \
-	     &v->field != (head); \
-	     v = dm_list_struct_base(v->field.p, __typeof__(*v), field))
-
-/*
- * Walk a list backwards, setting 'v' in turn to the containing structure
- * of each item.
- * The containing structure should be the same type as 'v'.
- * The list should be 'struct dm_list list' within the containing structure.
- */
-#define dm_list_iterate_back_items(v, head) dm_list_iterate_back_items_gen(v, (head), list)
-
-/*
- * Return the number of elements in a list by walking it.
- */
-unsigned int dm_list_size(const struct dm_list *head);
-
-//----------------------------------------------------------------
-
-#endif

base/memory/zalloc.h

@@ -14,12 +14,16 @@
 #define BASE_MEMORY_ZALLOC_H
 
 #include <stdlib.h>
+#include <string.h>
 
 //----------------------------------------------------------------
 
 static inline void *zalloc(size_t len)
 {
-	return calloc(1, len);
+	void *ptr = malloc(len);
+	if (ptr)
+		memset(ptr, 0, len);
+	return ptr;
 }
 
 //----------------------------------------------------------------

conf/Makefile.in

@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2004-2018 Red Hat, Inc. All rights reserved.
+# Copyright (C) 2004-2015 Red Hat, Inc. All rights reserved.
 #
 # This file is part of LVM2.
 #
@@ -25,7 +25,6 @@ PROFILES=$(PROFILE_TEMPLATES) \
 	$(srcdir)/cache-smq.profile \
 	$(srcdir)/thin-generic.profile \
 	$(srcdir)/thin-performance.profile \
-	$(srcdir)/vdo-small.profile \
 	$(srcdir)/lvmdbusd.profile
 
 include $(top_builddir)/make.tmpl
@@ -33,8 +32,8 @@ include $(top_builddir)/make.tmpl
 .PHONY: install_conf install_localconf install_profiles
 
 generate:
-	$(top_builddir)/tools/lvm dumpconfig --type default --unconfigured --withgeneralpreamble --withcomments --ignorelocal --withspaces > example.conf.in
+	LD_LIBRARY_PATH=$(top_builddir)/libdm:$(LD_LIBRARY_PATH) $(top_builddir)/tools/lvm dumpconfig --type default --unconfigured --withgeneralpreamble --withcomments --ignorelocal --withspaces > example.conf.in
-	$(top_builddir)/tools/lvm dumpconfig --type default --unconfigured --withlocalpreamble --withcomments --withspaces local > lvmlocal.conf.in
+	LD_LIBRARY_PATH=$(top_builddir)/libdm:$(LD_LIBRARY_PATH) $(top_builddir)/tools/lvm dumpconfig --type default --unconfigured --withlocalpreamble --withcomments --withspaces local > lvmlocal.conf.in
 
 install_conf: $(CONFSRC)
 	@if [ ! -e $(confdir)/$(CONFDEST) ]; then \
@@ -49,9 +48,8 @@ install_localconf: $(CONFLOCAL)
 	fi
 
 install_profiles: $(PROFILES)
-	@echo "    [INSTALL] $<"
+	$(INSTALL_DIR) $(profiledir)
-	$(Q) $(INSTALL_DIR) $(profiledir)
+	$(INSTALL_DATA) $(PROFILES) $(profiledir)/
-	$(Q) $(INSTALL_DATA) $(PROFILES) $(profiledir)/
 
 install_lvm2: install_conf install_localconf install_profiles
 

conf/vdo-small.profile

@@ -1,24 +0,0 @@
-# Demo configuration for 'VDO' using less memory.
-# ~lvmconfig --type full | grep vdo
-
-allocation {
-	vdo_use_compression=1
-	vdo_use_deduplication=1
-	vdo_use_metadata_hints=1
-	vdo_minimum_io_size=4096
-	vdo_block_map_cache_size_mb=128
-	vdo_block_map_period=16380
-	vdo_check_point_frequency=0
-	vdo_use_sparse_index=0
-	vdo_index_memory_size_mb=256
-	vdo_slab_size_mb=2048
-	vdo_ack_threads=1
-	vdo_bio_threads=1
-	vdo_bio_rotation=64
-	vdo_cpu_threads=2
-	vdo_hash_zone_threads=1
-	vdo_logical_threads=1
-	vdo_physical_threads=1
-	vdo_write_policy="auto"
-	vdo_max_discard=1
-}

daemons/Makefile.in

@@ -15,7 +15,11 @@ srcdir = @srcdir@
 top_srcdir = @top_srcdir@
 top_builddir = @top_builddir@
 
-.PHONY: dmeventd cmirrord lvmpolld lvmlockd
+.PHONY: dmeventd clvmd cmirrord lvmetad lvmpolld lvmlockd
+
+ifneq ("@CLVMD@", "none")
+  SUBDIRS += clvmd
+endif
 
 ifeq ("@BUILD_CMIRRORD@", "yes")
   SUBDIRS += cmirrord
@@ -28,6 +32,10 @@ daemons.cflow: dmeventd.cflow
 endif
 endif
 
+ifeq ("@BUILD_LVMETAD@", "yes")
+  SUBDIRS += lvmetad
+endif
+
 ifeq ("@BUILD_LVMPOLLD@", "yes")
   SUBDIRS += lvmpolld
 endif
@@ -40,8 +48,12 @@ ifeq ("@BUILD_LVMDBUSD@", "yes")
   SUBDIRS += lvmdbusd
 endif
 
+ifeq ("@BUILD_DMFILEMAPD@", "yes")
+  SUBDIRS += dmfilemapd
+endif
+
 ifeq ($(MAKECMDGOALS),distclean)
-  SUBDIRS = cmirrord dmeventd lvmpolld lvmlockd lvmdbusd
+  SUBDIRS = clvmd cmirrord dmeventd lvmetad lvmpolld lvmlockd lvmdbusd dmfilemapd
 endif
 
 include $(top_builddir)/make.tmpl

daemons/clvmd/.gitignore

@@ -0,0 +1 @@
+clvmd

daemons/clvmd/Makefile.in

@@ -0,0 +1,94 @@
+#
+# Copyright (C) 2004 Red Hat, Inc. All rights reserved.
+#
+# This file is part of LVM2.
+#
+# This copyrighted material is made available to anyone wishing to use,
+# modify, copy, or redistribute it subject to the terms and conditions
+# of the GNU General Public License v.2.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+top_builddir = @top_builddir@
+
+CMAN_LIBS = @CMAN_LIBS@
+CMAN_CFLAGS = @CMAN_CFLAGS@
+CMAP_LIBS = @CMAP_LIBS@
+CMAP_CFLAGS = @CMAP_CFLAGS@
+CONFDB_LIBS = @CONFDB_LIBS@
+CONFDB_CFLAGS = @CONFDB_CFLAGS@
+CPG_LIBS = @CPG_LIBS@
+CPG_CFLAGS = @CPG_CFLAGS@
+DLM_LIBS = @DLM_LIBS@
+DLM_CFLAGS = @DLM_CFLAGS@
+QUORUM_LIBS = @QUORUM_LIBS@
+QUORUM_CFLAGS = @QUORUM_CFLAGS@
+SALCK_LIBS = @SALCK_LIBS@
+SALCK_CFLAGS = @SALCK_CFLAGS@
+
+SOURCES = \
+	clvmd-command.c\
+	clvmd.c\
+	lvm-functions.c\
+	refresh_clvmd.c
+
+ifneq (,$(findstring cman,, "@CLVMD@,"))
+	SOURCES += clvmd-cman.c
+	LMLIBS += $(CMAN_LIBS) $(CONFDB_LIBS) $(DLM_LIBS)
+	CFLAGS += $(CMAN_CFLAGS) $(CONFDB_CFLAGS) $(DLM_CFLAGS)
+	DEFS += -DUSE_CMAN
+endif
+
+ifneq (,$(findstring openais,, "@CLVMD@,"))
+	SOURCES += clvmd-openais.c
+	LMLIBS += $(CONFDB_LIBS) $(CPG_LIBS) $(SALCK_LIBS)
+	CFLAGS += $(CONFDB_CFLAGS) $(CPG_CFLAGS) $(SALCK_CFLAGS)
+	DEFS += -DUSE_OPENAIS
+endif
+
+ifneq (,$(findstring corosync,, "@CLVMD@,"))
+	SOURCES += clvmd-corosync.c
+	LMLIBS += $(CMAP_LIBS) $(CONFDB_LIBS) $(CPG_LIBS) $(DLM_LIBS) $(QUORUM_LIBS)
+	CFLAGS += $(CMAP_CFLAGS) $(CONFDB_CFLAGS) $(CPG_CFLAGS) $(DLM_CFLAGS) $(QUORUM_CFLAGS)
+	DEFS += -DUSE_COROSYNC
+endif
+
+ifneq (,$(findstring singlenode,, "@CLVMD@,"))
+	SOURCES += clvmd-singlenode.c
+	DEFS += -DUSE_SINGLENODE
+endif
+
+ifeq ($(MAKECMDGOALS),distclean)
+	SOURCES += clvmd-cman.c
+	SOURCES += clvmd-openais.c
+	SOURCES += clvmd-corosync.c
+	SOURCES += clvmd-singlenode.c
+endif
+
+TARGETS = \
+	clvmd
+
+include $(top_builddir)/make.tmpl
+
+LIBS += $(LVMINTERNAL_LIBS) -ldevmapper $(PTHREAD_LIBS) -laio
+CFLAGS += -fno-strict-aliasing $(EXTRA_EXEC_CFLAGS)
+
+INSTALL_TARGETS = \
+	install_clvmd
+
+clvmd: $(OBJECTS) $(top_builddir)/lib/liblvm-internal.a
+	$(CC) $(CFLAGS) $(LDFLAGS) $(EXTRA_EXEC_LDFLAGS) $(ELDFLAGS) \
+	      -o clvmd $(OBJECTS) $(LMLIBS) $(LIBS)
+
+.PHONY: install_clvmd
+
+install_clvmd: $(TARGETS)
+	$(INSTALL_PROGRAM) -D clvmd $(usrsbindir)/clvmd
+
+install: $(INSTALL_TARGETS)
+
+install_cluster: $(INSTALL_TARGETS)

daemons/clvmd/clvm.h

@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2002-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU General Public License v.2.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* Definitions for CLVMD server and clients */
+
+/*
+ * The protocol spoken over the cluster and across the local socket.
+ */
+
+#ifndef _CLVM_H
+#define _CLVM_H
+
+#include "configure.h"
+#include <inttypes.h>
+
+struct clvm_header {
+	uint8_t  cmd;	        /* See below */
+	uint8_t  flags;	        /* See below */
+	uint16_t xid;	        /* Transaction ID */
+	uint32_t clientid;	/* Only used in Daemon->Daemon comms */
+	int32_t  status;	/* For replies, whether request succeeded */
+	uint32_t arglen;	/* Length of argument below.
+				   If >1500 then it will be passed
+				   around the cluster in the system LV */
+	char node[1];		/* Actually a NUL-terminated string, node name.
+				   If this is empty then the command is
+				   forwarded to all cluster nodes unless
+				   FLAG_LOCAL or FLAG_REMOTE is also set. */
+	char args[1];		/* Arguments for the command follow the
+				   node name, This member is only
+				   valid if the node name is empty */
+} __attribute__ ((packed));
+
+/* Flags */
+#define CLVMD_FLAG_LOCAL	1	/* Only do this on the local node */
+#define CLVMD_FLAG_SYSTEMLV	2	/* Data in system LV under my node name */
+#define CLVMD_FLAG_NODEERRS	4	/* Reply has errors in node-specific portion */
+#define CLVMD_FLAG_REMOTE	8	/* Do this on all nodes except for the local node */
+
+/* Name of the local socket to communicate between lvm and clvmd */
+#define CLVMD_SOCKNAME		DEFAULT_RUN_DIR "/clvmd.sock"
+
+/* Internal commands & replies */
+#define CLVMD_CMD_REPLY    1
+#define CLVMD_CMD_VERSION  2	/* Send version around cluster when we start */
+#define CLVMD_CMD_GOAWAY   3	/* Die if received this - we are running
+				   an incompatible version */
+#define CLVMD_CMD_TEST     4	/* Just for mucking about */
+
+#define CLVMD_CMD_LOCK              30
+#define CLVMD_CMD_UNLOCK            31
+
+/* Lock/Unlock commands */
+#define CLVMD_CMD_LOCK_LV           50
+#define CLVMD_CMD_LOCK_VG           51
+#define CLVMD_CMD_LOCK_QUERY	    52
+
+/* Misc functions */
+#define CLVMD_CMD_REFRESH	    40
+#define CLVMD_CMD_GET_CLUSTERNAME   41
+#define CLVMD_CMD_SET_DEBUG	    42
+#define CLVMD_CMD_VG_BACKUP	    43
+#define CLVMD_CMD_RESTART	    44
+#define CLVMD_CMD_SYNC_NAMES	    45
+
+/* Used internally by some callers, but not part of the protocol.*/
+#ifndef NODE_ALL
+#  define NODE_ALL	"*"
+#  define NODE_LOCAL	"."
+#  define NODE_REMOTE	"^"
+#endif
+
+#endif

daemons/clvmd/clvmd-cman.c

@@ -0,0 +1,505 @@
+/*
+ * Copyright (C) 2002-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU General Public License v.2.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/*
+ * CMAN communication layer for clvmd.
+ */
+
+#include "clvmd-common.h"
+
+#include <pthread.h>
+
+#include "clvmd-comms.h"
+#include "clvm.h"
+#include "clvmd.h"
+#include "lvm-functions.h"
+
+#include <libdlm.h>
+
+#include <syslog.h>
+
+#define LOCKSPACE_NAME "clvmd"
+
+struct clvmd_node
+{
+	struct cman_node *node;
+	int clvmd_up;
+};
+
+static int num_nodes;
+static struct cman_node *nodes = NULL;
+static struct cman_node this_node;
+static int count_nodes; /* size of allocated nodes array */
+static struct dm_hash_table *node_updown_hash;
+static dlm_lshandle_t *lockspace;
+static cman_handle_t c_handle;
+
+static void count_clvmds_running(void);
+static void get_members(void);
+static int nodeid_from_csid(const char *csid);
+static int name_from_nodeid(int nodeid, char *name);
+static void event_callback(cman_handle_t handle, void *private, int reason, int arg);
+static void data_callback(cman_handle_t handle, void *private,
+			  char *buf, int len, uint8_t port, int nodeid);
+
+struct lock_wait {
+	pthread_cond_t cond;
+	pthread_mutex_t mutex;
+	struct dlm_lksb lksb;
+};
+
+static int _init_cluster(void)
+{
+	node_updown_hash = dm_hash_create(100);
+
+	/* Open the cluster communication socket */
+	c_handle = cman_init(NULL);
+	if (!c_handle) {
+		syslog(LOG_ERR, "Can't open cluster manager socket: %m");
+		return -1;
+	}
+	DEBUGLOG("Connected to CMAN\n");
+
+	if (cman_start_recv_data(c_handle, data_callback, CLUSTER_PORT_CLVMD)) {
+		syslog(LOG_ERR, "Can't bind cluster socket: %m");
+		return -1;
+	}
+
+	if (cman_start_notification(c_handle, event_callback)) {
+		syslog(LOG_ERR, "Can't start cluster event listening");
+		return -1;
+	}
+
+	/* Get the cluster members list */
+	get_members();
+	count_clvmds_running();
+
+	DEBUGLOG("CMAN initialisation complete\n");
+
+	/* Create a lockspace for LV & VG locks to live in */
+	lockspace = dlm_open_lockspace(LOCKSPACE_NAME);
+	if (!lockspace) {
+		lockspace = dlm_create_lockspace(LOCKSPACE_NAME, 0600);
+		if (!lockspace) {
+			syslog(LOG_ERR, "Unable to create DLM lockspace for CLVM: %m");
+			return -1;
+		}
+		DEBUGLOG("Created DLM lockspace for CLVMD.\n");
+	} else
+		DEBUGLOG("Opened existing DLM lockspace for CLVMD.\n");
+
+	dlm_ls_pthread_init(lockspace);
+	DEBUGLOG("DLM initialisation complete\n");
+	return 0;
+}
+
+static void _cluster_init_completed(void)
+{
+	clvmd_cluster_init_completed();
+}
+
+static int _get_main_cluster_fd(void)
+{
+	return cman_get_fd(c_handle);
+}
+
+static int _get_num_nodes(void)
+{
+	int i;
+	int nnodes = 0;
+
+	/* return number of ACTIVE nodes */
+	for (i=0; i<num_nodes; i++) {
+		if (nodes[i].cn_member && nodes[i].cn_nodeid)
+			nnodes++;
+	}
+	return nnodes;
+}
+
+/* send_message with the fd check removed */
+static int _cluster_send_message(const void *buf, int msglen, const char *csid,
+				 const char *errtext)
+{
+	int nodeid = 0;
+
+	if (csid)
+		memcpy(&nodeid, csid, CMAN_MAX_CSID_LEN);
+
+	if (cman_send_data(c_handle, buf, msglen, 0, CLUSTER_PORT_CLVMD, nodeid) <= 0)
+	{
+		log_error("%s", errtext);
+	}
+	return msglen;
+}
+
+static void _get_our_csid(char *csid)
+{
+	if (this_node.cn_nodeid == 0) {
+		cman_get_node(c_handle, 0, &this_node);
+	}
+	memcpy(csid, &this_node.cn_nodeid, CMAN_MAX_CSID_LEN);
+}
+
+/* Call a callback routine for each node is that known (down means not running a clvmd) */
+static int _cluster_do_node_callback(struct local_client *client,
+				     void (*callback) (struct local_client *,
+						       const char *,
+						       int))
+{
+	int i;
+	int somedown = 0;
+
+	for (i = 0; i < _get_num_nodes(); i++) {
+		if (nodes[i].cn_member && nodes[i].cn_nodeid) {
+			int up = (int)(long)dm_hash_lookup_binary(node_updown_hash, (char *)&nodes[i].cn_nodeid, sizeof(int));
+
+			callback(client, (char *)&nodes[i].cn_nodeid, up);
+			if (!up)
+				somedown = -1;
+		}
+	}
+	return somedown;
+}
+
+/* Process OOB messages from the cluster socket */
+static void event_callback(cman_handle_t handle, void *private, int reason, int arg)
+{
+	char namebuf[MAX_CLUSTER_MEMBER_NAME_LEN];
+
+	switch (reason) {
+        case CMAN_REASON_PORTCLOSED:
+		name_from_nodeid(arg, namebuf);
+		log_notice("clvmd on node %s has died\n", namebuf);
+		DEBUGLOG("Got port closed message, removing node %s\n", namebuf);
+
+		dm_hash_insert_binary(node_updown_hash, (char *)&arg, sizeof(int), (void *)0);
+		break;
+
+	case CMAN_REASON_STATECHANGE:
+		DEBUGLOG("Got state change message, re-reading members list\n");
+		get_members();
+		break;
+
+#if defined(LIBCMAN_VERSION) && LIBCMAN_VERSION >= 2
+	case CMAN_REASON_PORTOPENED:
+		/* Ignore this, wait for startup message from clvmd itself */
+		break;
+
+	case CMAN_REASON_TRY_SHUTDOWN:
+		DEBUGLOG("Got try shutdown, sending OK\n");
+		cman_replyto_shutdown(c_handle, 1);
+		break;
+#endif
+	default:
+		/* ERROR */
+		DEBUGLOG("Got unknown event callback message: %d\n", reason);
+		break;
+	}
+}
+
+static struct local_client *cman_client;
+static int _cluster_fd_callback(struct local_client *fd, char *buf, int len,
+				const char *csid,
+				struct local_client **new_client)
+{
+
+	/* Save this for data_callback */
+	cman_client = fd;
+
+	/* We never return a new client */
+	*new_client = NULL;
+
+	return cman_dispatch(c_handle, 0);
+}
+
+
+static void data_callback(cman_handle_t handle, void *private,
+			  char *buf, int len, uint8_t port, int nodeid)
+{
+	/* Ignore looped back messages */
+	if (nodeid == this_node.cn_nodeid)
+		return;
+	process_message(cman_client, buf, len, (char *)&nodeid);
+}
+
+static void _add_up_node(const char *csid)
+{
+	/* It's up ! */
+	int nodeid = nodeid_from_csid(csid);
+
+	dm_hash_insert_binary(node_updown_hash, (char *)&nodeid, sizeof(int), (void *)1);
+	DEBUGLOG("Added new node %d to updown list\n", nodeid);
+}
+
+static void _cluster_closedown(void)
+{
+	dlm_release_lockspace(LOCKSPACE_NAME, lockspace, 1);
+	cman_finish(c_handle);
+}
+
+static int is_listening(int nodeid)
+{
+	int status;
+
+	do {
+		status = cman_is_listening(c_handle, nodeid, CLUSTER_PORT_CLVMD);
+		if (status < 0 && errno == EBUSY) {	/* Don't busywait */
+			sleep(1);
+			errno = EBUSY;	/* In case sleep trashes it */
+		}
+	}
+	while (status < 0 && errno == EBUSY);
+
+	return status;
+}
+
+/* Populate the list of CLVMDs running.
+   called only at startup time */
+static void count_clvmds_running(void)
+{
+	int i;
+
+	for (i = 0; i < num_nodes; i++) {
+		int nodeid = nodes[i].cn_nodeid;
+
+		if (is_listening(nodeid) == 1)
+			dm_hash_insert_binary(node_updown_hash, (void *)&nodeid, sizeof(int), (void*)1);
+		else
+			dm_hash_insert_binary(node_updown_hash, (void *)&nodeid, sizeof(int), (void*)0);
+	}
+}
+
+/* Get a list of active cluster members */
+static void get_members(void)
+{
+	int retnodes;
+	int status;
+	int i;
+	int high_nodeid = 0;
+
+	num_nodes = cman_get_node_count(c_handle);
+	if (num_nodes == -1) {
+		log_error("Unable to get node count");
+		return;
+	}
+
+	/* Not enough room for new nodes list ? */
+	if (num_nodes > count_nodes && nodes) {
+		free(nodes);
+		nodes = NULL;
+	}
+
+	if (nodes == NULL) {
+		count_nodes = num_nodes + 10; /* Overallocate a little */
+		nodes = malloc(count_nodes * sizeof(struct cman_node));
+		if (!nodes) {
+			log_error("Unable to allocate nodes array\n");
+			exit(5);
+		}
+	}
+
+	status = cman_get_nodes(c_handle, count_nodes, &retnodes, nodes);
+	if (status < 0) {
+		log_error("Unable to get node details");
+		exit(6);
+	}
+
+	/* Get the highest nodeid */
+	for (i=0; i<retnodes; i++) {
+		if (nodes[i].cn_nodeid > high_nodeid)
+			high_nodeid = nodes[i].cn_nodeid;
+	}
+}
+
+
+/* Convert a node name to a CSID */
+static int _csid_from_name(char *csid, const char *name)
+{
+	int i;
+
+	for (i = 0; i < num_nodes; i++) {
+		if (strcmp(name, nodes[i].cn_name) == 0) {
+			memcpy(csid, &nodes[i].cn_nodeid, CMAN_MAX_CSID_LEN);
+			return 0;
+		}
+	}
+	return -1;
+}
+
+/* Convert a CSID to a node name */
+static int _name_from_csid(const char *csid, char *name)
+{
+	int i;
+
+	for (i = 0; i < num_nodes; i++) {
+		if (memcmp(csid, &nodes[i].cn_nodeid, CMAN_MAX_CSID_LEN) == 0) {
+			strcpy(name, nodes[i].cn_name);
+			return 0;
+		}
+	}
+	/* Who?? */
+	strcpy(name, "Unknown");
+	return -1;
+}
+
+/* Convert a node ID to a node name */
+static int name_from_nodeid(int nodeid, char *name)
+{
+	int i;
+
+	for (i = 0; i < num_nodes; i++) {
+		if (nodeid == nodes[i].cn_nodeid) {
+			strcpy(name, nodes[i].cn_name);
+			return 0;
+		}
+	}
+	/* Who?? */
+	strcpy(name, "Unknown");
+	return -1;
+}
+
+/* Convert a CSID to a node ID */
+static int nodeid_from_csid(const char *csid)
+{
+        int nodeid;
+
+	memcpy(&nodeid, csid, CMAN_MAX_CSID_LEN);
+
+	return nodeid;
+}
+
+static int _is_quorate(void)
+{
+	return cman_is_quorate(c_handle);
+}
+
+static void sync_ast_routine(void *arg)
+{
+	struct lock_wait *lwait = arg;
+
+	pthread_mutex_lock(&lwait->mutex);
+	pthread_cond_signal(&lwait->cond);
+	pthread_mutex_unlock(&lwait->mutex);
+}
+
+static int _sync_lock(const char *resource, int mode, int flags, int *lockid)
+{
+	int status;
+	struct lock_wait lwait;
+
+	if (!lockid) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	DEBUGLOG("sync_lock: '%s' mode:%d flags=%d\n", resource,mode,flags);
+	/* Conversions need the lockid in the LKSB */
+	if (flags & LKF_CONVERT)
+		lwait.lksb.sb_lkid = *lockid;
+
+	pthread_cond_init(&lwait.cond, NULL);
+	pthread_mutex_init(&lwait.mutex, NULL);
+	pthread_mutex_lock(&lwait.mutex);
+
+	status = dlm_ls_lock(lockspace,
+			     mode,
+			     &lwait.lksb,
+			     flags,
+			     resource,
+			     strlen(resource),
+			     0, sync_ast_routine, &lwait, NULL, NULL);
+	if (status)
+		return status;
+
+	/* Wait for it to complete */
+	pthread_cond_wait(&lwait.cond, &lwait.mutex);
+	pthread_mutex_unlock(&lwait.mutex);
+
+	*lockid = lwait.lksb.sb_lkid;
+
+	errno = lwait.lksb.sb_status;
+	DEBUGLOG("sync_lock: returning lkid %x\n", *lockid);
+	if (lwait.lksb.sb_status)
+		return -1;
+	else
+		return 0;
+}
+
+static int _sync_unlock(const char *resource /* UNUSED */, int lockid)
+{
+	int status;
+	struct lock_wait lwait;
+
+	DEBUGLOG("sync_unlock: '%s' lkid:%x\n", resource, lockid);
+
+	pthread_cond_init(&lwait.cond, NULL);
+	pthread_mutex_init(&lwait.mutex, NULL);
+	pthread_mutex_lock(&lwait.mutex);
+
+	status = dlm_ls_unlock(lockspace, lockid, 0, &lwait.lksb, &lwait);
+
+	if (status)
+		return status;
+
+	/* Wait for it to complete */
+	pthread_cond_wait(&lwait.cond, &lwait.mutex);
+	pthread_mutex_unlock(&lwait.mutex);
+
+	errno = lwait.lksb.sb_status;
+	if (lwait.lksb.sb_status != EUNLOCK)
+		return -1;
+	else
+		return 0;
+
+}
+
+static int _get_cluster_name(char *buf, int buflen)
+{
+	cman_cluster_t cluster_info;
+	int status;
+
+	status = cman_get_cluster(c_handle, &cluster_info);
+	if (!status) {
+		strncpy(buf, cluster_info.ci_name, buflen);
+	}
+	return status;
+}
+
+static struct cluster_ops _cluster_cman_ops = {
+	.name                     = "cman",
+	.cluster_init_completed   = _cluster_init_completed,
+	.cluster_send_message     = _cluster_send_message,
+	.name_from_csid           = _name_from_csid,
+	.csid_from_name           = _csid_from_name,
+	.get_num_nodes            = _get_num_nodes,
+	.cluster_fd_callback      = _cluster_fd_callback,
+	.get_main_cluster_fd      = _get_main_cluster_fd,
+	.cluster_do_node_callback = _cluster_do_node_callback,
+	.is_quorate               = _is_quorate,
+	.get_our_csid             = _get_our_csid,
+	.add_up_node              = _add_up_node,
+	.cluster_closedown        = _cluster_closedown,
+	.get_cluster_name         = _get_cluster_name,
+	.sync_lock                = _sync_lock,
+	.sync_unlock              = _sync_unlock,
+};
+
+struct cluster_ops *init_cman_cluster(void)
+{
+	if (!_init_cluster())
+		return &_cluster_cman_ops;
+	else
+		return NULL;
+}

daemons/clvmd/clvmd-command.c

@@ -0,0 +1,415 @@
+/*
+ * Copyright (C) 2002-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004-2011 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU General Public License v.2.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/*
+
+  CLVMD Cluster LVM daemon command processor.
+
+  To add commands to the daemon simply add a processor in do_command and return
+  and messages back in buf and the length in *retlen. The initial value of
+  buflen is the maximum size of the buffer. if buf is not large enough then it
+  may be reallocated by the functions in here to a suitable size bearing in
+  mind that anything larger than the passed-in size will have to be returned
+  using the system LV and so performance will suffer.
+
+  The status return will be negated and passed back to the originating node.
+
+  pre- and post- command routines are called only on the local node. The
+  purpose is primarily to get and release locks, though the pre- routine should
+  also do any other local setups required by the command (if any) and can
+  return a failure code that prevents the command from being distributed around
+  the cluster
+
+  The pre- and post- routines are run in their own thread so can block as long
+  they like, do_command is run in the main clvmd thread so should not block for
+  too long. If the pre-command returns an error code (!=0) then the command
+  will not be propogated around the cluster but the post-command WILL be called
+
+  Also note that the pre and post routine are *always* called on the local
+  node, even if the command to be executed was only requested to run on a
+  remote node. It may peek inside the client structure to check the status of
+  the command.
+
+  The clients of the daemon must, naturally, understand the return messages and
+  codes.
+
+  Routines in here may only READ the values in the client structure passed in
+  apart from client->private which they are free to do what they like with.
+
+*/
+
+#include "clvmd-common.h"
+#include "clvmd-comms.h"
+#include "clvm.h"
+#include "clvmd.h"
+#include "lvm-globals.h"
+#include "lvm-functions.h"
+
+#include "locking.h"
+
+#include <sys/utsname.h>
+
+extern struct cluster_ops *clops;
+static int restart_clvmd(void);
+
+/* This is where all the real work happens:
+   NOTE: client will be NULL when this is executed on a remote node */
+int do_command(struct local_client *client, struct clvm_header *msg, int msglen,
+	       char **buf, int buflen, int *retlen)
+{
+	char *args = msg->node + strlen(msg->node) + 1;
+	int arglen = msglen - sizeof(struct clvm_header) - strlen(msg->node);
+	int status = 0;
+	char *lockname;
+	const char *locktype;
+	struct utsname nodeinfo;
+	unsigned char lock_cmd;
+	unsigned char lock_flags;
+
+	/* Do the command */
+	switch (msg->cmd) {
+		/* Just a test message */
+	case CLVMD_CMD_TEST:
+		if (arglen > buflen) {
+			char *new_buf;
+			buflen = arglen + 200;
+			new_buf = realloc(*buf, buflen);
+			if (new_buf == NULL) {
+				status = errno;
+				free (*buf);
+			}
+			*buf = new_buf;
+		}
+		if (*buf) {
+			if (uname(&nodeinfo))
+				memset(&nodeinfo, 0, sizeof(nodeinfo));
+
+			*retlen = 1 + dm_snprintf(*buf, buflen,
+						  "TEST from %s: %s v%s",
+						  nodeinfo.nodename, args,
+						  nodeinfo.release);
+		}
+		break;
+
+	case CLVMD_CMD_LOCK_VG:
+		lock_cmd = args[0];
+		lock_flags = args[1];
+		lockname = &args[2];
+		/* Check to see if the VG is in use by LVM1 */
+		do_lock_vg(lock_cmd, lock_flags, lockname);
+		break;
+
+	case CLVMD_CMD_LOCK_LV:
+		/* This is the biggie */
+		lock_cmd = args[0];
+		lock_flags = args[1];
+		lockname = &args[2];
+		status = do_lock_lv(lock_cmd, lock_flags, lockname);
+		/* Replace EIO with something less scary */
+		if (status == EIO) {
+			*retlen = 1 + dm_snprintf(*buf, buflen, "%s",
+						  get_last_lvm_error());
+			return EIO;
+		}
+		break;
+
+	case CLVMD_CMD_LOCK_QUERY:
+		lockname = &args[2];
+		if (buflen < 3)
+			return EIO;
+		if ((locktype = do_lock_query(lockname)))
+			*retlen = 1 + dm_snprintf(*buf, buflen, "%s", locktype);
+		break;
+
+	case CLVMD_CMD_REFRESH:
+		do_refresh_cache();
+		break;
+
+	case CLVMD_CMD_SYNC_NAMES:
+		lvm_do_fs_unlock();
+		break;
+
+	case CLVMD_CMD_SET_DEBUG:
+		clvmd_set_debug((debug_t) args[0]);
+		break;
+
+	case CLVMD_CMD_RESTART:
+		status = restart_clvmd();
+		break;
+
+	case CLVMD_CMD_GET_CLUSTERNAME:
+		status = clops->get_cluster_name(*buf, buflen);
+		if (!status)
+			*retlen = strlen(*buf)+1;
+		break;
+
+	case CLVMD_CMD_VG_BACKUP:
+		/*
+		 * Do not run backup on local node, caller should do that.
+		 */
+		if (!client)
+			lvm_do_backup(&args[2]);
+		break;
+
+	default:
+		/* Won't get here because command is validated in pre_command */
+		break;
+	}
+
+	/* Check the status of the command and return the error text */
+	if (status) {
+		if (*buf)
+			*retlen = dm_snprintf(*buf, buflen, "%s", strerror(status)) + 1;
+		else
+			*retlen = 0;
+	}
+
+	return status;
+}
+
+static int lock_vg(struct local_client *client)
+{
+	struct dm_hash_table *lock_hash;
+	struct clvm_header *header =
+		(struct clvm_header *) client->bits.localsock.cmd;
+	unsigned char lock_cmd;
+	int lock_mode;
+	char *args = header->node + strlen(header->node) + 1;
+	int lkid;
+	int status;
+	char *lockname;
+
+	/*
+	 * Keep a track of VG locks in our own hash table. In current
+	 * practice there should only ever be more than two VGs locked
+	 * if a user tries to merge lots of them at once
+	 */
+	if (!client->bits.localsock.private) {
+		if (!(lock_hash = dm_hash_create(3)))
+			return ENOMEM;
+		client->bits.localsock.private = (void *) lock_hash;
+	} else
+		lock_hash = (struct dm_hash_table *) client->bits.localsock.private;
+
+	lock_cmd = args[0] & (LCK_NONBLOCK | LCK_HOLD | LCK_SCOPE_MASK | LCK_TYPE_MASK);
+	lock_mode = ((int) lock_cmd & LCK_TYPE_MASK);
+	/* lock_flags = args[1]; */
+	lockname = &args[2];
+	DEBUGLOG("(%p) doing PRE command LOCK_VG '%s' at %x\n", client, lockname, lock_cmd);
+
+	if (lock_mode == LCK_UNLOCK) {
+		if (!(lkid = (int) (long) dm_hash_lookup(lock_hash, lockname)))
+			return EINVAL;
+
+		if ((status = sync_unlock(lockname, lkid)))
+			status = errno;
+		else
+			dm_hash_remove(lock_hash, lockname);
+	} else {
+		/* Read locks need to be PR; other modes get passed through */
+		if (lock_mode == LCK_READ)
+			lock_mode = LCK_PREAD;
+
+		if ((status = sync_lock(lockname, lock_mode, (lock_cmd & LCK_NONBLOCK) ? LCKF_NOQUEUE : 0, &lkid)))
+			status = errno;
+		else if (!dm_hash_insert(lock_hash, lockname, (void *) (long) lkid))
+			return ENOMEM;
+	}
+
+	return status;
+}
+
+
+/* Pre-command is a good place to get locks that are needed only for the duration
+   of the commands around the cluster (don't forget to free them in post-command),
+   and to sanity check the command arguments */
+int do_pre_command(struct local_client *client)
+{
+	struct clvm_header *header =
+	    (struct clvm_header *) client->bits.localsock.cmd;
+	unsigned char lock_cmd;
+	unsigned char lock_flags;
+	char *args = header->node + strlen(header->node) + 1;
+	int lockid = 0;
+	int status = 0;
+	char *lockname;
+
+	switch (header->cmd) {
+	case CLVMD_CMD_TEST:
+		status = sync_lock("CLVMD_TEST", LCK_EXCL, 0, &lockid);
+		client->bits.localsock.private = (void *)(long)lockid;
+		break;
+
+	case CLVMD_CMD_LOCK_VG:
+		lockname = &args[2];
+		/* We take out a real lock unless LCK_CACHE was set */
+		if (!strncmp(lockname, "V_", 2) ||
+		    !strncmp(lockname, "P_#", 3))
+			status = lock_vg(client);
+		break;
+
+	case CLVMD_CMD_LOCK_LV:
+		lock_cmd = args[0];
+		lock_flags = args[1];
+		lockname = &args[2];
+		status = pre_lock_lv(lock_cmd, lock_flags, lockname);
+		break;
+
+	case CLVMD_CMD_REFRESH:
+	case CLVMD_CMD_GET_CLUSTERNAME:
+	case CLVMD_CMD_SET_DEBUG:
+	case CLVMD_CMD_VG_BACKUP:
+	case CLVMD_CMD_SYNC_NAMES:
+	case CLVMD_CMD_LOCK_QUERY:
+	case CLVMD_CMD_RESTART:
+		break;
+
+	default:
+		log_error("Unknown command %d received\n", header->cmd);
+		status = EINVAL;
+	}
+	return status;
+}
+
+/* Note that the post-command routine is called even if the pre-command or the real command
+   failed */
+int do_post_command(struct local_client *client)
+{
+	struct clvm_header *header =
+	    (struct clvm_header *) client->bits.localsock.cmd;
+	int status = 0;
+	unsigned char lock_cmd;
+	unsigned char lock_flags;
+	char *args = header->node + strlen(header->node) + 1;
+	char *lockname;
+
+	switch (header->cmd) {
+	case CLVMD_CMD_TEST:
+		status = sync_unlock("CLVMD_TEST", (int) (long) client->bits.localsock.private);
+		client->bits.localsock.private = NULL;
+		break;
+
+	case CLVMD_CMD_LOCK_LV:
+		lock_cmd = args[0];
+		lock_flags = args[1];
+		lockname = &args[2];
+		status = post_lock_lv(lock_cmd, lock_flags, lockname);
+		break;
+
+	default:
+		/* Nothing to do here */
+		break;
+	}
+	return status;
+}
+
+
+/* Called when the client is about to be deleted */
+void cmd_client_cleanup(struct local_client *client)
+{
+	struct dm_hash_node *v;
+	struct dm_hash_table *lock_hash;
+	int lkid;
+	char *lockname;
+
+	DEBUGLOG("(%p) Client thread cleanup\n", client);
+	if (!client->bits.localsock.private)
+		return;
+
+	lock_hash = (struct dm_hash_table *)client->bits.localsock.private;
+
+	dm_hash_iterate(v, lock_hash) {
+		lkid = (int)(long)dm_hash_get_data(lock_hash, v);
+		lockname = dm_hash_get_key(lock_hash, v);
+		DEBUGLOG("(%p) Cleanup: Unlocking lock %s %x\n", client, lockname, lkid);
+		(void) sync_unlock(lockname, lkid);
+	}
+
+	dm_hash_destroy(lock_hash);
+	client->bits.localsock.private = NULL;
+}
+
+static int restart_clvmd(void)
+{
+	const char **argv;
+	char *lv_name;
+	int argc = 0, max_locks = 0;
+	struct dm_hash_node *hn = NULL;
+	char debug_arg[16];
+	const char *clvmd = getenv("LVM_CLVMD_BINARY") ? : CLVMD_PATH;
+
+	DEBUGLOG("clvmd restart requested\n");
+
+	/* Count exclusively-open LVs */
+	do {
+		hn = get_next_excl_lock(hn, &lv_name);
+		if (lv_name) {
+			max_locks++;
+			if (!*lv_name)
+				break; /* FIXME: Is this error ? */
+		}
+	} while (hn);
+
+	/* clvmd + locks (-E uuid) + debug (-d X) + NULL */
+	if (!(argv = malloc((max_locks * 2 + 6) * sizeof(*argv))))
+		goto_out;
+
+	/*
+	 * Build the command-line
+	 */
+	argv[argc++] = "clvmd";
+
+	/* Propagate debug options */
+	if (clvmd_get_debug()) {
+		if (dm_snprintf(debug_arg, sizeof(debug_arg), "-d%u", clvmd_get_debug()) < 0)
+			goto_out;
+		argv[argc++] = debug_arg;
+	}
+
+	/* Propagate foreground options */
+	if (clvmd_get_foreground())
+		argv[argc++] = "-f";
+
+	argv[argc++] = "-I";
+	argv[argc++] = clops->name;
+
+	/* Now add the exclusively-open LVs */
+	hn = NULL;
+	do {
+		hn = get_next_excl_lock(hn, &lv_name);
+		if (lv_name) {
+			if (!*lv_name)
+				break; /* FIXME: Is this error ? */
+			argv[argc++] = "-E";
+			argv[argc++] = lv_name;
+			DEBUGLOG("excl lock: %s\n", lv_name);
+		}
+	} while (hn);
+	argv[argc] = NULL;
+
+	/* Exec new clvmd */
+	DEBUGLOG("--- Restarting %s ---\n", clvmd);
+	for (argc = 1; argv[argc]; argc++) DEBUGLOG("--- %d: %s\n", argc, argv[argc]);
+
+	/* NOTE: This will fail when downgrading! */
+	execvp(clvmd, (char **)argv);
+out:
+	/* We failed */
+	DEBUGLOG("Restart of clvmd failed.\n");
+
+	free(argv);
+
+	return EIO;
+}

daemons/clvmd/clvmd-common.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2010 Red Hat, Inc. All rights reserved.
  *
  * This file is part of LVM2.
  *
@@ -12,11 +12,16 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#ifndef _LIBDM_KDEV_H
+/*
-#define _LIBDM_KDEV_H
+ * This file must be included first by every clvmd source file.
+ */
+#ifndef _LVM_CLVMD_COMMON_H
+#define _LVM_CLVMD_COMMON_H
 
-#define MAJOR(dev)      ((dev & 0xfff00) >> 8)
+#define _REENTRANT
-#define MINOR(dev)      ((dev & 0xff) | ((dev >> 12) & 0xfff00))
+
-#define MKDEV(ma,mi)    (((dev_t)mi & 0xff) | ((dev_t)ma << 8) | (((dev_t)mi & ~0xff) << 12))
+#include "tool.h"
+
+#include "lvm-logging.h"
 
 #endif

daemons/clvmd/clvmd-comms.h

@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2002-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004-2011 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU General Public License v.2.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/*
+ * Abstraction layer for clvmd cluster communications
+ */
+
+#ifndef _CLVMD_COMMS_H
+#define _CLVMD_COMMS_H
+
+struct local_client;
+
+struct cluster_ops {
+	const char *name;
+	void (*cluster_init_completed) (void);
+
+	int (*cluster_send_message) (const void *buf, int msglen,
+				     const char *csid,
+				     const char *errtext);
+	int (*name_from_csid) (const char *csid, char *name);
+	int (*csid_from_name) (char *csid, const char *name);
+	int (*get_num_nodes) (void);
+	int (*cluster_fd_callback) (struct local_client *fd, char *buf, int len,
+				    const char *csid,
+				    struct local_client **new_client);
+	int (*get_main_cluster_fd) (void);	/* gets accept FD or cman cluster socket */
+	int (*cluster_do_node_callback) (struct local_client *client,
+					 void (*callback) (struct local_client *,
+							   const char *csid,
+							   int node_up));
+	int (*is_quorate) (void);
+
+	void (*get_our_csid) (char *csid);
+	void (*add_up_node) (const char *csid);
+	void (*reread_config) (void);
+	void (*cluster_closedown) (void);
+
+	int (*get_cluster_name)(char *buf, int buflen);
+
+	int (*sync_lock) (const char *resource, int mode,
+			  int flags, int *lockid);
+	int (*sync_unlock) (const char *resource, int lockid);
+
+};
+
+#ifdef USE_CMAN
+#  include <netinet/in.h>
+#  include "libcman.h"
+#  define CMAN_MAX_CSID_LEN 4
+#  ifndef MAX_CSID_LEN
+#    define MAX_CSID_LEN CMAN_MAX_CSID_LEN
+#  endif
+#  undef MAX_CLUSTER_MEMBER_NAME_LEN
+#  define MAX_CLUSTER_MEMBER_NAME_LEN   CMAN_MAX_NODENAME_LEN
+#  define CMAN_MAX_CLUSTER_MESSAGE 1500
+#  define CLUSTER_PORT_CLVMD 11
+struct cluster_ops *init_cman_cluster(void);
+#endif
+
+#ifdef USE_OPENAIS
+#  include <openais/saAis.h>
+#  include <corosync/totem/totem.h>
+#  define OPENAIS_CSID_LEN (sizeof(int))
+#  define OPENAIS_MAX_CLUSTER_MESSAGE         MESSAGE_SIZE_MAX
+#  define OPENAIS_MAX_CLUSTER_MEMBER_NAME_LEN SA_MAX_NAME_LENGTH
+#  ifndef MAX_CLUSTER_MEMBER_NAME_LEN
+#    define MAX_CLUSTER_MEMBER_NAME_LEN       SA_MAX_NAME_LENGTH
+#  endif
+#  ifndef CMAN_MAX_CLUSTER_MESSAGE
+#    define CMAN_MAX_CLUSTER_MESSAGE          MESSAGE_SIZE_MAX
+#  endif
+#  ifndef MAX_CSID_LEN
+#    define MAX_CSID_LEN sizeof(int)
+#  endif
+struct cluster_ops *init_openais_cluster(void);
+#endif
+
+#ifdef USE_COROSYNC
+#  include <corosync/corotypes.h>
+#  define COROSYNC_CSID_LEN (sizeof(int))
+#  define COROSYNC_MAX_CLUSTER_MESSAGE         65535
+#  define COROSYNC_MAX_CLUSTER_MEMBER_NAME_LEN CS_MAX_NAME_LENGTH
+#  ifndef MAX_CLUSTER_MEMBER_NAME_LEN
+#    define MAX_CLUSTER_MEMBER_NAME_LEN       CS_MAX_NAME_LENGTH
+#  endif
+#  ifndef CMAN_MAX_CLUSTER_MESSAGE
+#    define CMAN_MAX_CLUSTER_MESSAGE          65535
+#  endif
+#  ifndef MAX_CSID_LEN
+#    define MAX_CSID_LEN sizeof(int)
+#  endif
+struct cluster_ops *init_corosync_cluster(void);
+#endif
+
+#ifdef USE_SINGLENODE
+#  define SINGLENODE_CSID_LEN (sizeof(int))
+#  ifndef MAX_CLUSTER_MEMBER_NAME_LEN
+#    define MAX_CLUSTER_MEMBER_NAME_LEN       64
+#  endif
+#  define SINGLENODE_MAX_CLUSTER_MESSAGE          65535
+#  ifndef MAX_CSID_LEN
+#    define MAX_CSID_LEN sizeof(int)
+#  endif
+struct cluster_ops *init_singlenode_cluster(void);
+#endif
+
+#endif

daemons/clvmd/clvmd-corosync.c

@@ -0,0 +1,662 @@
+/*
+ * Copyright (C) 2009-2012 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/*
+ * This provides the interface between clvmd and corosync/DLM as the cluster
+ * and lock manager.
+ */
+
+#include "clvmd-common.h"
+
+#include <pthread.h>
+
+#include "clvm.h"
+#include "clvmd-comms.h"
+#include "clvmd.h"
+#include "lvm-functions.h"
+
+#include "locking.h"
+
+#include <corosync/cpg.h>
+#include <corosync/quorum.h>
+
+#ifdef HAVE_COROSYNC_CONFDB_H
+#  include <corosync/confdb.h>
+#elif defined HAVE_COROSYNC_CMAP_H
+#  include <corosync/cmap.h>
+#else
+#  error "Either HAVE_COROSYNC_CONFDB_H or HAVE_COROSYNC_CMAP_H must be defined."
+#endif
+
+#include <libdlm.h>
+
+#include <syslog.h>
+
+/* Timeout value for several corosync calls */
+#define LOCKSPACE_NAME "clvmd"
+
+static void corosync_cpg_deliver_callback (cpg_handle_t handle,
+				  const struct cpg_name *groupName,
+				  uint32_t nodeid,
+				  uint32_t pid,
+				  void *msg,
+				  size_t msg_len);
+static void corosync_cpg_confchg_callback(cpg_handle_t handle,
+				 const struct cpg_name *groupName,
+				 const struct cpg_address *member_list, size_t member_list_entries,
+				 const struct cpg_address *left_list, size_t left_list_entries,
+				 const struct cpg_address *joined_list, size_t joined_list_entries);
+static void _cluster_closedown(void);
+
+/* Hash list of nodes in the cluster */
+static struct dm_hash_table *node_hash;
+
+/* Number of active nodes */
+static int num_nodes;
+static unsigned int our_nodeid;
+
+static struct local_client *cluster_client;
+
+/* Corosync handles */
+static cpg_handle_t cpg_handle;
+static quorum_handle_t quorum_handle;
+
+/* DLM Handle */
+static dlm_lshandle_t *lockspace;
+
+static struct cpg_name cpg_group_name;
+
+/* Corosync callback structs */
+cpg_callbacks_t corosync_cpg_callbacks = {
+	.cpg_deliver_fn =            corosync_cpg_deliver_callback,
+	.cpg_confchg_fn =            corosync_cpg_confchg_callback,
+};
+
+quorum_callbacks_t quorum_callbacks = {
+	.quorum_notify_fn = NULL,
+};
+
+struct node_info
+{
+	enum {NODE_DOWN, NODE_CLVMD} state;
+	int nodeid;
+};
+
+
+/* Set errno to something approximating the right value and return 0 or -1 */
+static int cs_to_errno(cs_error_t err)
+{
+	switch(err)
+	{
+	case CS_OK:
+		return 0;
+        case CS_ERR_LIBRARY:
+		errno = EINVAL;
+		break;
+        case CS_ERR_VERSION:
+		errno = EINVAL;
+		break;
+        case CS_ERR_INIT:
+		errno = EINVAL;
+		break;
+        case CS_ERR_TIMEOUT:
+		errno = ETIME;
+		break;
+        case CS_ERR_TRY_AGAIN:
+		errno = EAGAIN;
+		break;
+        case CS_ERR_INVALID_PARAM:
+		errno = EINVAL;
+		break;
+        case CS_ERR_NO_MEMORY:
+		errno = ENOMEM;
+		break;
+        case CS_ERR_BAD_HANDLE:
+		errno = EINVAL;
+		break;
+        case CS_ERR_BUSY:
+		errno = EBUSY;
+		break;
+        case CS_ERR_ACCESS:
+		errno = EPERM;
+		break;
+        case CS_ERR_NOT_EXIST:
+		errno = ENOENT;
+		break;
+        case CS_ERR_NAME_TOO_LONG:
+		errno = ENAMETOOLONG;
+		break;
+        case CS_ERR_EXIST:
+		errno = EEXIST;
+		break;
+        case CS_ERR_NO_SPACE:
+		errno = ENOSPC;
+		break;
+        case CS_ERR_INTERRUPT:
+		errno = EINTR;
+		break;
+	case CS_ERR_NAME_NOT_FOUND:
+		errno = ENOENT;
+		break;
+        case CS_ERR_NO_RESOURCES:
+		errno = ENOMEM;
+		break;
+        case CS_ERR_NOT_SUPPORTED:
+		errno = EOPNOTSUPP;
+		break;
+        case CS_ERR_BAD_OPERATION:
+		errno = EINVAL;
+		break;
+        case CS_ERR_FAILED_OPERATION:
+		errno = EIO;
+		break;
+        case CS_ERR_MESSAGE_ERROR:
+		errno = EIO;
+		break;
+        case CS_ERR_QUEUE_FULL:
+		errno = EXFULL;
+		break;
+        case CS_ERR_QUEUE_NOT_AVAILABLE:
+		errno = EINVAL;
+		break;
+        case CS_ERR_BAD_FLAGS:
+		errno = EINVAL;
+		break;
+        case CS_ERR_TOO_BIG:
+		errno = E2BIG;
+		break;
+        case CS_ERR_NO_SECTIONS:
+		errno = ENOMEM;
+		break;
+	default:
+		errno = EINVAL;
+		break;
+	}
+	return -1;
+}
+
+static char *print_corosync_csid(const char *csid)
+{
+	static char buf[128];
+	int id;
+
+	memcpy(&id, csid, sizeof(int));
+	sprintf(buf, "%d", id);
+	return buf;
+}
+
+static void corosync_cpg_deliver_callback (cpg_handle_t handle,
+				  const struct cpg_name *groupName,
+				  uint32_t nodeid,
+				  uint32_t pid,
+				  void *msg,
+				  size_t msg_len)
+{
+	int target_nodeid;
+
+	memcpy(&target_nodeid, msg, COROSYNC_CSID_LEN);
+
+	DEBUGLOG("%u got message from nodeid %d for %d. len %zd\n",
+		 our_nodeid, nodeid, target_nodeid, msg_len-4);
+
+	if (nodeid != our_nodeid)
+		if (target_nodeid == our_nodeid || target_nodeid == 0)
+			process_message(cluster_client, (char *)msg+COROSYNC_CSID_LEN,
+					msg_len-COROSYNC_CSID_LEN, (char*)&nodeid);
+}
+
+static void corosync_cpg_confchg_callback(cpg_handle_t handle,
+				 const struct cpg_name *groupName,
+				 const struct cpg_address *member_list, size_t member_list_entries,
+				 const struct cpg_address *left_list, size_t left_list_entries,
+				 const struct cpg_address *joined_list, size_t joined_list_entries)
+{
+	int i;
+	struct node_info *ninfo;
+
+	DEBUGLOG("confchg callback. %zd joined, %zd left, %zd members\n",
+		 joined_list_entries, left_list_entries, member_list_entries);
+
+	for (i=0; i<joined_list_entries; i++) {
+		ninfo = dm_hash_lookup_binary(node_hash,
+					      (char *)&joined_list[i].nodeid,
+					      COROSYNC_CSID_LEN);
+		if (!ninfo) {
+			ninfo = malloc(sizeof(struct node_info));
+			if (!ninfo) {
+				break;
+			}
+			else {
+				ninfo->nodeid = joined_list[i].nodeid;
+				dm_hash_insert_binary(node_hash,
+						      (char *)&ninfo->nodeid,
+						      COROSYNC_CSID_LEN, ninfo);
+			}
+		}
+		ninfo->state = NODE_CLVMD;
+	}
+
+	for (i=0; i<left_list_entries; i++) {
+		ninfo = dm_hash_lookup_binary(node_hash,
+					      (char *)&left_list[i].nodeid,
+					      COROSYNC_CSID_LEN);
+		if (ninfo)
+			ninfo->state = NODE_DOWN;
+	}
+
+	num_nodes = member_list_entries;
+}
+
+static int _init_cluster(void)
+{
+	cs_error_t err;
+
+#ifdef QUORUM_SET	/* corosync/quorum.h */
+	uint32_t quorum_type;
+#endif
+
+	node_hash = dm_hash_create(100);
+
+	err = cpg_initialize(&cpg_handle,
+			     &corosync_cpg_callbacks);
+	if (err != CS_OK) {
+		syslog(LOG_ERR, "Cannot initialise Corosync CPG service: %d",
+		       err);
+		DEBUGLOG("Cannot initialise Corosync CPG service: %d", err);
+		return cs_to_errno(err);
+	}
+
+#ifdef QUORUM_SET
+	err = quorum_initialize(&quorum_handle,
+				&quorum_callbacks,
+				&quorum_type);
+
+	if (quorum_type != QUORUM_SET) {
+		syslog(LOG_ERR, "Corosync quorum service is not configured");
+		DEBUGLOG("Corosync quorum service is not configured");
+		return EINVAL;
+	}
+#else
+	err = quorum_initialize(&quorum_handle,
+				&quorum_callbacks);
+#endif
+
+	if (err != CS_OK) {
+		syslog(LOG_ERR, "Cannot initialise Corosync quorum service: %d",
+		       err);
+		DEBUGLOG("Cannot initialise Corosync quorum service: %d", err);
+		return cs_to_errno(err);
+	}
+
+	/* Create a lockspace for LV & VG locks to live in */
+	lockspace = dlm_open_lockspace(LOCKSPACE_NAME);
+	if (!lockspace) {
+		lockspace = dlm_create_lockspace(LOCKSPACE_NAME, 0600);
+		if (!lockspace) {
+			syslog(LOG_ERR, "Unable to create DLM lockspace for CLVM: %m");
+			return -1;
+		}
+		DEBUGLOG("Created DLM lockspace for CLVMD.\n");
+	} else
+		DEBUGLOG("Opened existing DLM lockspace for CLVMD.\n");
+
+	dlm_ls_pthread_init(lockspace);
+	DEBUGLOG("DLM initialisation complete\n");
+
+	/* Connect to the clvmd group */
+	strcpy((char *)cpg_group_name.value, "clvmd");
+	cpg_group_name.length = strlen((char *)cpg_group_name.value);
+	err = cpg_join(cpg_handle, &cpg_group_name);
+	if (err != CS_OK) {
+		cpg_finalize(cpg_handle);
+		quorum_finalize(quorum_handle);
+		dlm_release_lockspace(LOCKSPACE_NAME, lockspace, 1);
+		syslog(LOG_ERR, "Cannot join clvmd process group");
+		DEBUGLOG("Cannot join clvmd process group: %d\n", err);
+		return cs_to_errno(err);
+	}
+
+	err = cpg_local_get(cpg_handle,
+			    &our_nodeid);
+	if (err != CS_OK) {
+		cpg_finalize(cpg_handle);
+		quorum_finalize(quorum_handle);
+		dlm_release_lockspace(LOCKSPACE_NAME, lockspace, 1);
+		syslog(LOG_ERR, "Cannot get local node id\n");
+		return cs_to_errno(err);
+	}
+	DEBUGLOG("Our local node id is %d\n", our_nodeid);
+
+	DEBUGLOG("Connected to Corosync\n");
+
+	return 0;
+}
+
+static void _cluster_closedown(void)
+{
+	dlm_release_lockspace(LOCKSPACE_NAME, lockspace, 1);
+	cpg_finalize(cpg_handle);
+	quorum_finalize(quorum_handle);
+}
+
+static void _get_our_csid(char *csid)
+{
+	memcpy(csid, &our_nodeid, sizeof(int));
+}
+
+/* Corosync doesn't really have nmode names so we
+   just use the node ID in hex instead */
+static int _csid_from_name(char *csid, const char *name)
+{
+	int nodeid;
+	struct node_info *ninfo;
+
+	if (sscanf(name, "%x", &nodeid) == 1) {
+		ninfo = dm_hash_lookup_binary(node_hash, csid, COROSYNC_CSID_LEN);
+		if (ninfo)
+			return nodeid;
+	}
+	return -1;
+}
+
+static int _name_from_csid(const char *csid, char *name)
+{
+	struct node_info *ninfo;
+
+	ninfo = dm_hash_lookup_binary(node_hash, csid, COROSYNC_CSID_LEN);
+	if (!ninfo)
+	{
+		sprintf(name, "UNKNOWN %s", print_corosync_csid(csid));
+		return -1;
+	}
+
+	sprintf(name, "%x", ninfo->nodeid);
+	return 0;
+}
+
+static int _get_num_nodes(void)
+{
+	DEBUGLOG("num_nodes = %d\n", num_nodes);
+	return num_nodes;
+}
+
+/* Node is now known to be running a clvmd */
+static void _add_up_node(const char *csid)
+{
+	struct node_info *ninfo;
+
+	ninfo = dm_hash_lookup_binary(node_hash, csid, COROSYNC_CSID_LEN);
+	if (!ninfo) {
+		DEBUGLOG("corosync_add_up_node no node_hash entry for csid %s\n",
+			 print_corosync_csid(csid));
+		return;
+	}
+
+	DEBUGLOG("corosync_add_up_node %d\n", ninfo->nodeid);
+
+	ninfo->state = NODE_CLVMD;
+
+	return;
+}
+
+/* Call a callback for each node, so the caller knows whether it's up or down */
+static int _cluster_do_node_callback(struct local_client *master_client,
+				     void (*callback)(struct local_client *,
+						      const char *csid, int node_up))
+{
+	struct dm_hash_node *hn;
+	struct node_info *ninfo;
+
+	dm_hash_iterate(hn, node_hash)
+	{
+		char csid[COROSYNC_CSID_LEN];
+
+		ninfo = dm_hash_get_data(node_hash, hn);
+		memcpy(csid, dm_hash_get_key(node_hash, hn), COROSYNC_CSID_LEN);
+
+		DEBUGLOG("down_callback. node %d, state = %d\n", ninfo->nodeid,
+			 ninfo->state);
+
+		if (ninfo->state == NODE_CLVMD)
+			callback(master_client, csid, 1);
+	}
+	return 0;
+}
+
+/* Real locking */
+static int _lock_resource(const char *resource, int mode, int flags, int *lockid)
+{
+	struct dlm_lksb lksb;
+	int err;
+
+	DEBUGLOG("lock_resource '%s', flags=%d, mode=%d\n", resource, flags, mode);
+
+	if (flags & LKF_CONVERT)
+		lksb.sb_lkid = *lockid;
+
+	err = dlm_ls_lock_wait(lockspace,
+			       mode,
+			       &lksb,
+			       flags,
+			       resource,
+			       strlen(resource),
+			       0,
+			       NULL, NULL, NULL);
+
+	if (err != 0)
+	{
+		DEBUGLOG("dlm_ls_lock returned %d\n", errno);
+		return err;
+	}
+	if (lksb.sb_status != 0)
+	{
+		DEBUGLOG("dlm_ls_lock returns lksb.sb_status %d\n", lksb.sb_status);
+		errno = lksb.sb_status;
+		return -1;
+	}
+
+	DEBUGLOG("lock_resource returning %d, lock_id=%x\n", err, lksb.sb_lkid);
+
+	*lockid = lksb.sb_lkid;
+
+	return 0;
+}
+
+
+static int _unlock_resource(const char *resource, int lockid)
+{
+	struct dlm_lksb lksb;
+	int err;
+
+	DEBUGLOG("unlock_resource: %s lockid: %x\n", resource, lockid);
+	lksb.sb_lkid = lockid;
+
+	err = dlm_ls_unlock_wait(lockspace,
+				 lockid,
+				 0,
+				 &lksb);
+	if (err != 0)
+	{
+		DEBUGLOG("Unlock returned %d\n", err);
+		return err;
+	}
+	if (lksb.sb_status != EUNLOCK)
+	{
+		DEBUGLOG("dlm_ls_unlock_wait returns lksb.sb_status: %d\n", lksb.sb_status);
+		errno = lksb.sb_status;
+		return -1;
+	}   
+
+
+	return 0;
+}
+
+static int _is_quorate(void)
+{
+	int quorate;
+	if (quorum_getquorate(quorum_handle, &quorate) == CS_OK)
+		return quorate;
+	else
+		return 0;
+}
+
+static int _get_main_cluster_fd(void)
+{
+	int select_fd;
+
+	cpg_fd_get(cpg_handle, &select_fd);
+	return select_fd;
+}
+
+static int _cluster_fd_callback(struct local_client *fd, char *buf, int len,
+				const char *csid,
+				struct local_client **new_client)
+{
+	cluster_client = fd;
+	*new_client = NULL;
+	cpg_dispatch(cpg_handle, CS_DISPATCH_ONE);
+	return 1;
+}
+
+static int _cluster_send_message(const void *buf, int msglen, const char *csid,
+				 const char *errtext)
+{
+	static pthread_mutex_t _mutex = PTHREAD_MUTEX_INITIALIZER;
+	struct iovec iov[2];
+	cs_error_t err;
+	int target_node;
+
+	if (csid)
+		memcpy(&target_node, csid, COROSYNC_CSID_LEN);
+	else
+		target_node = 0;
+
+	iov[0].iov_base = &target_node;
+	iov[0].iov_len = sizeof(int);
+	iov[1].iov_base = (char *)buf;
+	iov[1].iov_len = msglen;
+
+	pthread_mutex_lock(&_mutex);
+	err = cpg_mcast_joined(cpg_handle, CPG_TYPE_AGREED, iov, 2);
+	pthread_mutex_unlock(&_mutex);
+
+	return cs_to_errno(err);
+}
+
+#ifdef HAVE_COROSYNC_CONFDB_H
+/*
+ * We are not necessarily connected to a Red Hat Cluster system,
+ * but if we are, this returns the cluster name from cluster.conf.
+ * I've used confdb rather than ccs to reduce the inter-package
+ * dependancies as well as to allow people to set a cluster name
+ * for themselves even if they are not running on RH cluster.
+ */
+static int _get_cluster_name(char *buf, int buflen)
+{
+	confdb_handle_t handle;
+	int result;
+	size_t namelen = buflen;
+	hdb_handle_t cluster_handle;
+	confdb_callbacks_t callbacks = {
+		.confdb_key_change_notify_fn = NULL,
+		.confdb_object_create_change_notify_fn = NULL,
+		.confdb_object_delete_change_notify_fn = NULL
+	};
+
+	/* This is a default in case everything else fails */
+	strncpy(buf, "Corosync", buflen);
+
+	/* Look for a cluster name in confdb */
+	result = confdb_initialize (&handle, &callbacks);
+        if (result != CS_OK)
+		return 0;
+
+        result = confdb_object_find_start(handle, OBJECT_PARENT_HANDLE);
+	if (result != CS_OK)
+		goto out;
+
+        result = confdb_object_find(handle, OBJECT_PARENT_HANDLE, (void *)"cluster", strlen("cluster"), &cluster_handle);
+        if (result != CS_OK)
+		goto out;
+
+        result = confdb_key_get(handle, cluster_handle, (void *)"name", strlen("name"), buf, &namelen);
+        if (result != CS_OK)
+		goto out;
+
+	buf[namelen] = '\0';
+
+out:
+	confdb_finalize(handle);
+	return 0;
+}
+
+#elif defined HAVE_COROSYNC_CMAP_H
+
+static int _get_cluster_name(char *buf, int buflen)
+{
+	cmap_handle_t cmap_handle = 0;
+	int result;
+	char *name = NULL;
+
+	/* This is a default in case everything else fails */
+	strncpy(buf, "Corosync", buflen);
+
+	/* Look for a cluster name in cmap */
+	result = cmap_initialize(&cmap_handle);
+	if (result != CS_OK)
+		return 0;
+
+	result = cmap_get_string(cmap_handle, "totem.cluster_name", &name);
+	if (result != CS_OK)
+		goto out;
+
+	memset(buf, 0, buflen);
+	strncpy(buf, name, buflen - 1);
+
+out:
+	if (name)
+		free(name);
+	cmap_finalize(cmap_handle);
+	return 0;
+}
+
+#endif
+
+static struct cluster_ops _cluster_corosync_ops = {
+	.name                     = "corosync",
+	.cluster_init_completed   = NULL,
+	.cluster_send_message     = _cluster_send_message,
+	.name_from_csid           = _name_from_csid,
+	.csid_from_name           = _csid_from_name,
+	.get_num_nodes            = _get_num_nodes,
+	.cluster_fd_callback      = _cluster_fd_callback,
+	.get_main_cluster_fd      = _get_main_cluster_fd,
+	.cluster_do_node_callback = _cluster_do_node_callback,
+	.is_quorate               = _is_quorate,
+	.get_our_csid             = _get_our_csid,
+	.add_up_node              = _add_up_node,
+	.reread_config            = NULL,
+	.cluster_closedown        = _cluster_closedown,
+	.get_cluster_name         = _get_cluster_name,
+	.sync_lock                = _lock_resource,
+	.sync_unlock              = _unlock_resource,
+};
+
+struct cluster_ops *init_corosync_cluster(void)
+{
+	if (!_init_cluster())
+		return &_cluster_corosync_ops;
+	else
+		return NULL;
+}

daemons/clvmd/clvmd-openais.c

@@ -0,0 +1,687 @@
+/*
+ * Copyright (C) 2007-2009 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/*
+ * This provides the interface between clvmd and OpenAIS as the cluster
+ * and lock manager.
+ */
+
+#include "clvmd-common.h"
+
+#include <pthread.h>
+#include <fcntl.h>
+#include <syslog.h>
+
+#include <openais/saAis.h>
+#include <openais/saLck.h>
+
+#include <corosync/corotypes.h>
+#include <corosync/cpg.h>
+
+#include "locking.h"
+#include "clvm.h"
+#include "clvmd-comms.h"
+#include "lvm-functions.h"
+#include "clvmd.h"
+
+/* Timeout value for several openais calls */
+#define TIMEOUT 10
+
+static void openais_cpg_deliver_callback (cpg_handle_t handle,
+				  const struct cpg_name *groupName,
+				  uint32_t nodeid,
+				  uint32_t pid,
+				  void *msg,
+				  size_t msg_len);
+static void openais_cpg_confchg_callback(cpg_handle_t handle,
+				 const struct cpg_name *groupName,
+				 const struct cpg_address *member_list, size_t member_list_entries,
+				 const struct cpg_address *left_list, size_t left_list_entries,
+				 const struct cpg_address *joined_list, size_t joined_list_entries);
+
+static void _cluster_closedown(void);
+
+/* Hash list of nodes in the cluster */
+static struct dm_hash_table *node_hash;
+
+/* For associating lock IDs & resource handles */
+static struct dm_hash_table *lock_hash;
+
+/* Number of active nodes */
+static int num_nodes;
+static unsigned int our_nodeid;
+
+static struct local_client *cluster_client;
+
+/* OpenAIS handles */
+static cpg_handle_t cpg_handle;
+static SaLckHandleT lck_handle;
+
+static struct cpg_name cpg_group_name;
+
+/* Openais callback structs */
+cpg_callbacks_t openais_cpg_callbacks = {
+	.cpg_deliver_fn =            openais_cpg_deliver_callback,
+	.cpg_confchg_fn =            openais_cpg_confchg_callback,
+};
+
+struct node_info
+{
+	enum {NODE_UNKNOWN, NODE_DOWN, NODE_UP, NODE_CLVMD} state;
+	int nodeid;
+};
+
+struct lock_info
+{
+	SaLckResourceHandleT res_handle;
+	SaLckLockIdT         lock_id;
+	SaNameT              lock_name;
+};
+
+/* Set errno to something approximating the right value and return 0 or -1 */
+static int ais_to_errno(SaAisErrorT err)
+{
+	switch(err)
+	{
+	case SA_AIS_OK:
+		return 0;
+        case SA_AIS_ERR_LIBRARY:
+		errno = EINVAL;
+		break;
+        case SA_AIS_ERR_VERSION:
+		errno = EINVAL;
+		break;
+        case SA_AIS_ERR_INIT:
+		errno = EINVAL;
+		break;
+        case SA_AIS_ERR_TIMEOUT:
+		errno = ETIME;
+		break;
+        case SA_AIS_ERR_TRY_AGAIN:
+		errno = EAGAIN;
+		break;
+        case SA_AIS_ERR_INVALID_PARAM:
+		errno = EINVAL;
+		break;
+        case SA_AIS_ERR_NO_MEMORY:
+		errno = ENOMEM;
+		break;
+        case SA_AIS_ERR_BAD_HANDLE:
+		errno = EINVAL;
+		break;
+        case SA_AIS_ERR_BUSY:
+		errno = EBUSY;
+		break;
+        case SA_AIS_ERR_ACCESS:
+		errno = EPERM;
+		break;
+        case SA_AIS_ERR_NOT_EXIST:
+		errno = ENOENT;
+		break;
+        case SA_AIS_ERR_NAME_TOO_LONG:
+		errno = ENAMETOOLONG;
+		break;
+        case SA_AIS_ERR_EXIST:
+		errno = EEXIST;
+		break;
+        case SA_AIS_ERR_NO_SPACE:
+		errno = ENOSPC;
+		break;
+        case SA_AIS_ERR_INTERRUPT:
+		errno = EINTR;
+		break;
+	case SA_AIS_ERR_NAME_NOT_FOUND:
+		errno = ENOENT;
+		break;
+        case SA_AIS_ERR_NO_RESOURCES:
+		errno = ENOMEM;
+		break;
+        case SA_AIS_ERR_NOT_SUPPORTED:
+		errno = EOPNOTSUPP;
+		break;
+        case SA_AIS_ERR_BAD_OPERATION:
+		errno = EINVAL;
+		break;
+        case SA_AIS_ERR_FAILED_OPERATION:
+		errno = EIO;
+		break;
+        case SA_AIS_ERR_MESSAGE_ERROR:
+		errno = EIO;
+		break;
+        case SA_AIS_ERR_QUEUE_FULL:
+		errno = EXFULL;
+		break;
+        case SA_AIS_ERR_QUEUE_NOT_AVAILABLE:
+		errno = EINVAL;
+		break;
+        case SA_AIS_ERR_BAD_FLAGS:
+		errno = EINVAL;
+		break;
+        case SA_AIS_ERR_TOO_BIG:
+		errno = E2BIG;
+		break;
+        case SA_AIS_ERR_NO_SECTIONS:
+		errno = ENOMEM;
+		break;
+	default:
+		errno = EINVAL;
+		break;
+	}
+	return -1;
+}
+
+static char *print_openais_csid(const char *csid)
+{
+	static char buf[128];
+	int id;
+
+	memcpy(&id, csid, sizeof(int));
+	sprintf(buf, "%d", id);
+	return buf;
+}
+
+static int add_internal_client(int fd, fd_callback_t callback)
+{
+	struct local_client *client;
+
+	DEBUGLOG("Add_internal_client, fd = %d\n", fd);
+
+	if (!(client = dm_zalloc(sizeof(*client)))) {
+		DEBUGLOG("malloc failed\n");
+		return -1;
+	}
+
+	client->fd = fd;
+	client->type = CLUSTER_INTERNAL;
+	client->callback = callback;
+	add_client(client);
+
+	/* Set Close-on-exec */
+	fcntl(fd, F_SETFD, 1);
+
+	return 0;
+}
+
+static void openais_cpg_deliver_callback (cpg_handle_t handle,
+				  const struct cpg_name *groupName,
+				  uint32_t nodeid,
+				  uint32_t pid,
+				  void *msg,
+				  size_t msg_len)
+{
+	int target_nodeid;
+
+	memcpy(&target_nodeid, msg, OPENAIS_CSID_LEN);
+
+	DEBUGLOG("%u got message from nodeid %d for %d. len %" PRIsize_t "\n",
+		 our_nodeid, nodeid, target_nodeid, msg_len-4);
+
+	if (nodeid != our_nodeid)
+		if (target_nodeid == our_nodeid || target_nodeid == 0)
+			process_message(cluster_client, (char *)msg+OPENAIS_CSID_LEN,
+					msg_len-OPENAIS_CSID_LEN, (char*)&nodeid);
+}
+
+static void openais_cpg_confchg_callback(cpg_handle_t handle,
+				 const struct cpg_name *groupName,
+				 const struct cpg_address *member_list, size_t member_list_entries,
+				 const struct cpg_address *left_list, size_t left_list_entries,
+				 const struct cpg_address *joined_list, size_t joined_list_entries)
+{
+	int i;
+	struct node_info *ninfo;
+
+	DEBUGLOG("confchg callback. %" PRIsize_t " joined, "
+		 FMTsize_t " left, %" PRIsize_t " members\n",
+		 joined_list_entries, left_list_entries, member_list_entries);
+
+	for (i=0; i<joined_list_entries; i++) {
+		ninfo = dm_hash_lookup_binary(node_hash,
+					      (char *)&joined_list[i].nodeid,
+					      OPENAIS_CSID_LEN);
+		if (!ninfo) {
+			ninfo = malloc(sizeof(struct node_info));
+			if (!ninfo) {
+				break;
+			}
+			else {
+				ninfo->nodeid = joined_list[i].nodeid;
+				dm_hash_insert_binary(node_hash,
+						      (char *)&ninfo->nodeid,
+						      OPENAIS_CSID_LEN, ninfo);
+			}
+		}
+		ninfo->state = NODE_CLVMD;
+	}
+
+	for (i=0; i<left_list_entries; i++) {
+		ninfo = dm_hash_lookup_binary(node_hash,
+					      (char *)&left_list[i].nodeid,
+					      OPENAIS_CSID_LEN);
+		if (ninfo)
+			ninfo->state = NODE_DOWN;
+	}
+
+	for (i=0; i<member_list_entries; i++) {
+		if (member_list[i].nodeid == 0) continue;
+		ninfo = dm_hash_lookup_binary(node_hash,
+				(char *)&member_list[i].nodeid,
+				OPENAIS_CSID_LEN);
+		if (!ninfo) {
+			ninfo = malloc(sizeof(struct node_info));
+			if (!ninfo) {
+				break;
+			}
+			else {
+				ninfo->nodeid = member_list[i].nodeid;
+				dm_hash_insert_binary(node_hash,
+						(char *)&ninfo->nodeid,
+						OPENAIS_CSID_LEN, ninfo);
+			}
+		}
+		ninfo->state = NODE_CLVMD;
+	}
+
+	num_nodes = member_list_entries;
+}
+
+static int lck_dispatch(struct local_client *client, char *buf, int len,
+			const char *csid, struct local_client **new_client)
+{
+	*new_client = NULL;
+	saLckDispatch(lck_handle, SA_DISPATCH_ONE);
+	return 1;
+}
+
+static int _init_cluster(void)
+{
+	SaAisErrorT err;
+	SaVersionT  ver = { 'B', 1, 1 };
+	int select_fd;
+
+	node_hash = dm_hash_create(100);
+	lock_hash = dm_hash_create(10);
+
+	err = cpg_initialize(&cpg_handle,
+			     &openais_cpg_callbacks);
+	if (err != SA_AIS_OK) {
+		syslog(LOG_ERR, "Cannot initialise OpenAIS CPG service: %d",
+		       err);
+		DEBUGLOG("Cannot initialise OpenAIS CPG service: %d", err);
+		return ais_to_errno(err);
+	}
+
+	err = saLckInitialize(&lck_handle,
+					NULL,
+			      &ver);
+	if (err != SA_AIS_OK) {
+		cpg_initialize(&cpg_handle, &openais_cpg_callbacks);
+		syslog(LOG_ERR, "Cannot initialise OpenAIS lock service: %d",
+		       err);
+		DEBUGLOG("Cannot initialise OpenAIS lock service: %d\n\n", err);
+		return ais_to_errno(err);
+	}
+
+	/* Connect to the clvmd group */
+	strcpy((char *)cpg_group_name.value, "clvmd");
+	cpg_group_name.length = strlen((char *)cpg_group_name.value);
+	err = cpg_join(cpg_handle, &cpg_group_name);
+	if (err != SA_AIS_OK) {
+		cpg_finalize(cpg_handle);
+		saLckFinalize(lck_handle);
+		syslog(LOG_ERR, "Cannot join clvmd process group");
+		DEBUGLOG("Cannot join clvmd process group: %d\n", err);
+		return ais_to_errno(err);
+	}
+
+	err = cpg_local_get(cpg_handle,
+			    &our_nodeid);
+	if (err != SA_AIS_OK) {
+		cpg_finalize(cpg_handle);
+		saLckFinalize(lck_handle);
+		syslog(LOG_ERR, "Cannot get local node id\n");
+		return ais_to_errno(err);
+	}
+	DEBUGLOG("Our local node id is %d\n", our_nodeid);
+
+	saLckSelectionObjectGet(lck_handle, (SaSelectionObjectT *)&select_fd);
+	add_internal_client(select_fd, lck_dispatch);
+
+	DEBUGLOG("Connected to OpenAIS\n");
+
+	return 0;
+}
+
+static void _cluster_closedown(void)
+{
+	saLckFinalize(lck_handle);
+	cpg_finalize(cpg_handle);
+}
+
+static void _get_our_csid(char *csid)
+{
+	memcpy(csid, &our_nodeid, sizeof(int));
+}
+
+/* OpenAIS doesn't really have nmode names so we
+   just use the node ID in hex instead */
+static int _csid_from_name(char *csid, const char *name)
+{
+	int nodeid;
+	struct node_info *ninfo;
+
+	if (sscanf(name, "%x", &nodeid) == 1) {
+		ninfo = dm_hash_lookup_binary(node_hash, csid, OPENAIS_CSID_LEN);
+		if (ninfo)
+			return nodeid;
+	}
+	return -1;
+}
+
+static int _name_from_csid(const char *csid, char *name)
+{
+	struct node_info *ninfo;
+
+	ninfo = dm_hash_lookup_binary(node_hash, csid, OPENAIS_CSID_LEN);
+	if (!ninfo)
+	{
+		sprintf(name, "UNKNOWN %s", print_openais_csid(csid));
+		return -1;
+	}
+
+	sprintf(name, "%x", ninfo->nodeid);
+	return 0;
+}
+
+static int _get_num_nodes()
+{
+	DEBUGLOG("num_nodes = %d\n", num_nodes);
+	return num_nodes;
+}
+
+/* Node is now known to be running a clvmd */
+static void _add_up_node(const char *csid)
+{
+	struct node_info *ninfo;
+
+	ninfo = dm_hash_lookup_binary(node_hash, csid, OPENAIS_CSID_LEN);
+	if (!ninfo) {
+		DEBUGLOG("openais_add_up_node no node_hash entry for csid %s\n",
+			 print_openais_csid(csid));
+		return;
+	}
+
+	DEBUGLOG("openais_add_up_node %d\n", ninfo->nodeid);
+
+	ninfo->state = NODE_CLVMD;
+}
+
+/* Call a callback for each node, so the caller knows whether it's up or down */
+static int _cluster_do_node_callback(struct local_client *master_client,
+				     void (*callback)(struct local_client *,
+						      const char *csid, int node_up))
+{
+	struct dm_hash_node *hn;
+	struct node_info *ninfo;
+	int somedown = 0;
+
+	dm_hash_iterate(hn, node_hash)
+	{
+		char csid[OPENAIS_CSID_LEN];
+
+		ninfo = dm_hash_get_data(node_hash, hn);
+		memcpy(csid, dm_hash_get_key(node_hash, hn), OPENAIS_CSID_LEN);
+
+		DEBUGLOG("down_callback. node %d, state = %d\n", ninfo->nodeid,
+			 ninfo->state);
+
+		if (ninfo->state != NODE_DOWN)
+			callback(master_client, csid, ninfo->state == NODE_CLVMD);
+		if (ninfo->state != NODE_CLVMD)
+			somedown = -1;
+	}
+	return somedown;
+}
+
+/* Real locking */
+static int _lock_resource(char *resource, int mode, int flags, int *lockid)
+{
+	struct lock_info *linfo;
+	SaLckResourceHandleT res_handle;
+	SaAisErrorT err;
+	SaLckLockIdT lock_id;
+	SaLckLockStatusT lockStatus;
+
+	/* This needs to be converted from DLM/LVM2 value for OpenAIS LCK */
+	if (flags & LCK_NONBLOCK) flags = SA_LCK_LOCK_NO_QUEUE;
+
+	linfo = malloc(sizeof(struct lock_info));
+	if (!linfo)
+		return -1;
+
+	DEBUGLOG("lock_resource '%s', flags=%d, mode=%d\n", resource, flags, mode);
+
+	linfo->lock_name.length = strlen(resource)+1;
+	strcpy((char *)linfo->lock_name.value, resource);
+
+	err = saLckResourceOpen(lck_handle, &linfo->lock_name,
+				SA_LCK_RESOURCE_CREATE, TIMEOUT, &res_handle);
+	if (err != SA_AIS_OK)
+	{
+		DEBUGLOG("ResourceOpen returned %d\n", err);
+		free(linfo);
+		return ais_to_errno(err);
+	}
+
+	err = saLckResourceLock(
+			res_handle,
+			&lock_id,
+			mode,
+			flags,
+			0,
+			SA_TIME_END,
+			&lockStatus);
+	if (err != SA_AIS_OK && lockStatus != SA_LCK_LOCK_GRANTED)
+	{
+		free(linfo);
+		saLckResourceClose(res_handle);
+		return ais_to_errno(err);
+	}
+
+	/* Wait for it to complete */
+
+	DEBUGLOG("lock_resource returning %d, lock_id=%" PRIx64 "\n",
+		 err, lock_id);
+
+	linfo->lock_id = lock_id;
+	linfo->res_handle = res_handle;
+
+	dm_hash_insert(lock_hash, resource, linfo);
+
+	return ais_to_errno(err);
+}
+
+
+static int _unlock_resource(char *resource, int lockid)
+{
+	SaAisErrorT err;
+	struct lock_info *linfo;
+
+	DEBUGLOG("unlock_resource %s\n", resource);
+	linfo = dm_hash_lookup(lock_hash, resource);
+	if (!linfo)
+		return 0;
+
+	DEBUGLOG("unlock_resource: lockid: %" PRIx64 "\n", linfo->lock_id);
+	err = saLckResourceUnlock(linfo->lock_id, SA_TIME_END);
+	if (err != SA_AIS_OK)
+	{
+		DEBUGLOG("Unlock returned %d\n", err);
+		return ais_to_errno(err);
+	}
+
+	/* Release the resource */
+	dm_hash_remove(lock_hash, resource);
+	saLckResourceClose(linfo->res_handle);
+	free(linfo);
+
+	return ais_to_errno(err);
+}
+
+static int _sync_lock(const char *resource, int mode, int flags, int *lockid)
+{
+	int status;
+	char lock1[strlen(resource)+3];
+	char lock2[strlen(resource)+3];
+
+	snprintf(lock1, sizeof(lock1), "%s-1", resource);
+	snprintf(lock2, sizeof(lock2), "%s-2", resource);
+
+	switch (mode)
+	{
+	case LCK_EXCL:
+		status = _lock_resource(lock1, SA_LCK_EX_LOCK_MODE, flags, lockid);
+		if (status)
+			goto out;
+
+		/* If we can't get this lock too then bail out */
+		status = _lock_resource(lock2, SA_LCK_EX_LOCK_MODE, LCK_NONBLOCK,
+					lockid);
+		if (status == SA_LCK_LOCK_NOT_QUEUED)
+		{
+			_unlock_resource(lock1, *lockid);
+			status = -1;
+			errno = EAGAIN;
+		}
+		break;
+
+	case LCK_PREAD:
+	case LCK_READ:
+		status = _lock_resource(lock1, SA_LCK_PR_LOCK_MODE, flags, lockid);
+		if (status)
+			goto out;
+		_unlock_resource(lock2, *lockid);
+		break;
+
+	case LCK_WRITE:
+		status = _lock_resource(lock2, SA_LCK_EX_LOCK_MODE, flags, lockid);
+		if (status)
+			goto out;
+		_unlock_resource(lock1, *lockid);
+		break;
+
+	default:
+		status = -1;
+		errno = EINVAL;
+		break;
+	}
+out:
+	*lockid = mode;
+	return status;
+}
+
+static int _sync_unlock(const char *resource, int lockid)
+{
+	int status = 0;
+	char lock1[strlen(resource)+3];
+	char lock2[strlen(resource)+3];
+
+	snprintf(lock1, sizeof(lock1), "%s-1", resource);
+	snprintf(lock2, sizeof(lock2), "%s-2", resource);
+
+	_unlock_resource(lock1, lockid);
+	_unlock_resource(lock2, lockid);
+
+	return status;
+}
+
+/* We are always quorate ! */
+static int _is_quorate()
+{
+	return 1;
+}
+
+static int _get_main_cluster_fd(void)
+{
+	int select_fd;
+
+	cpg_fd_get(cpg_handle, &select_fd);
+	return select_fd;
+}
+
+static int _cluster_fd_callback(struct local_client *fd, char *buf, int len,
+				const char *csid,
+				struct local_client **new_client)
+{
+	cluster_client = fd;
+	*new_client = NULL;
+	cpg_dispatch(cpg_handle, SA_DISPATCH_ONE);
+	return 1;
+}
+
+static int _cluster_send_message(const void *buf, int msglen, const char *csid,
+				 const char *errtext)
+{
+	struct iovec iov[2];
+	SaAisErrorT err;
+	int target_node;
+
+	if (csid)
+		memcpy(&target_node, csid, OPENAIS_CSID_LEN);
+	else
+		target_node = 0;
+
+	iov[0].iov_base = &target_node;
+	iov[0].iov_len = sizeof(int);
+	iov[1].iov_base = (char *)buf;
+	iov[1].iov_len = msglen;
+
+	err = cpg_mcast_joined(cpg_handle, CPG_TYPE_AGREED, iov, 2);
+	return ais_to_errno(err);
+}
+
+/* We don't have a cluster name to report here */
+static int _get_cluster_name(char *buf, int buflen)
+{
+	strncpy(buf, "OpenAIS", buflen);
+	return 0;
+}
+
+static struct cluster_ops _cluster_openais_ops = {
+	.name                     = "openais",
+	.cluster_init_completed   = NULL,
+	.cluster_send_message     = _cluster_send_message,
+	.name_from_csid           = _name_from_csid,
+	.csid_from_name           = _csid_from_name,
+	.get_num_nodes            = _get_num_nodes,
+	.cluster_fd_callback      = _cluster_fd_callback,
+	.get_main_cluster_fd      = _get_main_cluster_fd,
+	.cluster_do_node_callback = _cluster_do_node_callback,
+	.is_quorate               = _is_quorate,
+	.get_our_csid             = _get_our_csid,
+	.add_up_node              = _add_up_node,
+	.reread_config            = NULL,
+	.cluster_closedown        = _cluster_closedown,
+	.get_cluster_name         = _get_cluster_name,
+	.sync_lock                = _sync_lock,
+	.sync_unlock              = _sync_unlock,
+};
+
+struct cluster_ops *init_openais_cluster(void)
+{
+	if (!_init_cluster())
+		return &_cluster_openais_ops;
+
+	return NULL;
+}

daemons/clvmd/clvmd-singlenode.c

@@ -0,0 +1,382 @@
+/*
+ * Copyright (C) 2009-2013 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "clvmd-common.h"
+
+#include <pthread.h>
+
+#include "locking.h"
+#include "clvm.h"
+#include "clvmd-comms.h"
+#include "clvmd.h"
+
+#include <sys/un.h>
+#include <sys/socket.h>
+#include <fcntl.h>
+
+static const char SINGLENODE_CLVMD_SOCKNAME[] = DEFAULT_RUN_DIR "/clvmd_singlenode.sock";
+static int listen_fd = -1;
+
+static struct dm_hash_table *_locks;
+static int _lockid;
+
+static pthread_mutex_t _lock_mutex = PTHREAD_MUTEX_INITIALIZER;
+/* Using one common condition for all locks for simplicity */
+static pthread_cond_t _lock_cond = PTHREAD_COND_INITIALIZER;
+
+struct lock {
+	struct dm_list list;
+	int lockid;
+	int mode;
+};
+
+static void close_comms(void)
+{
+	if (listen_fd != -1 && close(listen_fd))
+		stack;
+	(void)unlink(SINGLENODE_CLVMD_SOCKNAME);
+	listen_fd = -1;
+}
+
+static int init_comms(void)
+{
+	mode_t old_mask;
+	struct sockaddr_un addr = { .sun_family = AF_UNIX };
+
+	if (!dm_strncpy(addr.sun_path, SINGLENODE_CLVMD_SOCKNAME,
+			sizeof(addr.sun_path))) {
+		DEBUGLOG("%s: singlenode socket name too long.",
+			 SINGLENODE_CLVMD_SOCKNAME);
+		return -1;
+	}
+
+	close_comms();
+
+	(void) dm_prepare_selinux_context(SINGLENODE_CLVMD_SOCKNAME, S_IFSOCK);
+	old_mask = umask(0077);
+
+	listen_fd = socket(PF_UNIX, SOCK_STREAM, 0);
+	if (listen_fd < 0) {
+		DEBUGLOG("Can't create local socket: %s\n", strerror(errno));
+		goto error;
+	}
+	/* Set Close-on-exec */
+	if (fcntl(listen_fd, F_SETFD, 1)) {
+		DEBUGLOG("Setting CLOEXEC on client fd failed: %s\n", strerror(errno));
+		goto error;
+	}
+
+	if (bind(listen_fd, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
+		DEBUGLOG("Can't bind local socket: %s\n", strerror(errno));
+		goto error;
+	}
+	if (listen(listen_fd, 10) < 0) {
+		DEBUGLOG("Can't listen local socket: %s\n", strerror(errno));
+		goto error;
+	}
+
+	umask(old_mask);
+	(void) dm_prepare_selinux_context(NULL, 0);
+	return 0;
+error:
+	umask(old_mask);
+	(void) dm_prepare_selinux_context(NULL, 0);
+	close_comms();
+	return -1;
+}
+
+static int _init_cluster(void)
+{
+	int r;
+
+	if (!(_locks = dm_hash_create(128))) {
+		DEBUGLOG("Failed to allocate single-node hash table.\n");
+		return 1;
+	}
+
+	r = init_comms();
+	if (r) {
+		dm_hash_destroy(_locks);
+		_locks = NULL;
+		return r;
+	}
+
+	DEBUGLOG("Single-node cluster initialised.\n");
+	return 0;
+}
+
+static void _cluster_closedown(void)
+{
+	close_comms();
+
+	/* If there is any awaited resource, kill it softly */
+	pthread_mutex_lock(&_lock_mutex);
+	dm_hash_destroy(_locks);
+	_locks = NULL;
+	_lockid = 0;
+	pthread_cond_broadcast(&_lock_cond); /* wakeup waiters */
+	pthread_mutex_unlock(&_lock_mutex);
+}
+
+static void _get_our_csid(char *csid)
+{
+	int nodeid = 1;
+	memcpy(csid, &nodeid, sizeof(int));
+}
+
+static int _csid_from_name(char *csid, const char *name)
+{
+	return 1;
+}
+
+static int _name_from_csid(const char *csid, char *name)
+{
+	strcpy(name, "SINGLENODE");
+	return 0;
+}
+
+static int _get_num_nodes(void)
+{
+	return 1;
+}
+
+/* Node is now known to be running a clvmd */
+static void _add_up_node(const char *csid)
+{
+}
+
+/* Call a callback for each node, so the caller knows whether it's up or down */
+static int _cluster_do_node_callback(struct local_client *master_client,
+				     void (*callback)(struct local_client *,
+				     const char *csid, int node_up))
+{
+	return 0;
+}
+
+int _lock_file(const char *file, uint32_t flags);
+
+static const char *_get_mode(int mode)
+{
+	switch (mode) {
+	case LCK_NULL: return "NULL";
+	case LCK_READ: return "READ";
+	case LCK_PREAD: return "PREAD";
+	case LCK_WRITE: return "WRITE";
+	case LCK_EXCL: return "EXCLUSIVE";
+	case LCK_UNLOCK: return "UNLOCK";
+	default: return "????";
+	}
+}
+
+/* Real locking */
+static int _lock_resource(const char *resource, int mode, int flags, int *lockid)
+{
+	/* DLM table of allowed transition states */
+	static const int _dlm_table[6][6] = {
+	/* Mode	   NL	CR	CW	PR	PW	EX */
+	/* NL */ { 1,	 1,	 1,	 1,	 1,	 1},
+	/* CR */ { 1,	 1,	 1,	 1,	 1,	 0},
+	/* CW */ { 1,	 1,	 1,	 0,	 0,	 0},
+	/* PR */ { 1,	 1,	 0,	 1,	 0,	 0},
+	/* PW */ { 1,	 1,	 0,	 0,	 0,	 0},
+	/* EX */ { 1,	 0,	 0,	 0,	 0,	 0}
+	};
+
+	struct lock *lck = NULL, *lckt;
+	struct dm_list *head;
+
+	DEBUGLOG("Locking resource %s, flags=0x%02x (%s%s%s), mode=%s (%d)\n",
+		 resource, flags,
+		 (flags & LCKF_NOQUEUE) ? "NOQUEUE" : "",
+		 ((flags & (LCKF_NOQUEUE | LCKF_CONVERT)) ==
+		  (LCKF_NOQUEUE | LCKF_CONVERT)) ? "|" : "",
+		 (flags & LCKF_CONVERT) ? "CONVERT" : "",
+		 _get_mode(mode), mode);
+
+	mode &= LCK_TYPE_MASK;
+	pthread_mutex_lock(&_lock_mutex);
+
+retry:
+	if (!(head = dm_hash_lookup(_locks, resource))) {
+		if (flags & LCKF_CONVERT) {
+			/* In real DLM, lock is identified only by lockid, resource is not used */
+			DEBUGLOG("Unlocked resource %s cannot be converted\n", resource);
+			goto_bad;
+		}
+		/* Add new locked resource */
+		if (!(head = dm_malloc(sizeof(struct dm_list))) ||
+		    !dm_hash_insert(_locks, resource, head)) {
+			dm_free(head);
+			goto_bad;
+		}
+
+		dm_list_init(head);
+	} else	/* Update/convert locked resource */
+		dm_list_iterate_items(lck, head) {
+			/* Check is all locks are compatible with requested lock */
+			if (flags & LCKF_CONVERT) {
+				if (lck->lockid != *lockid)
+					continue;
+
+				DEBUGLOG("Converting resource %s lockid=%d mode:%s -> %s...\n",
+					 resource, lck->lockid, _get_mode(lck->mode), _get_mode(mode));
+				dm_list_iterate_items(lckt, head) {
+					if ((lckt->lockid != *lockid) &&
+					    !_dlm_table[mode][lckt->mode]) {
+						if (!(flags & LCKF_NOQUEUE) &&
+						    /* TODO: Real dlm uses here conversion queues */
+						    !pthread_cond_wait(&_lock_cond, &_lock_mutex) &&
+						    _locks) /* End of the game? */
+							goto retry;
+						goto bad;
+					}
+				}
+				lck->mode = mode; /* Lock is now converted */
+				goto out;
+			} else if (!_dlm_table[mode][lck->mode]) {
+				DEBUGLOG("Resource %s already locked lockid=%d, mode:%s\n",
+					 resource, lck->lockid, _get_mode(lck->mode));
+				if (!(flags & LCKF_NOQUEUE) &&
+				    !pthread_cond_wait(&_lock_cond, &_lock_mutex) &&
+				    _locks) { /* End of the game? */
+					DEBUGLOG("Resource %s retrying lock in mode:%s...\n",
+						 resource, _get_mode(mode));
+					goto retry;
+				}
+				goto bad;
+			}
+		}
+
+	if (!(flags & LCKF_CONVERT)) {
+		if (!(lck = dm_malloc(sizeof(struct lock))))
+			goto_bad;
+
+		*lockid = lck->lockid = ++_lockid;
+		lck->mode = mode;
+		dm_list_add(head, &lck->list);
+	}
+out:
+	pthread_cond_broadcast(&_lock_cond); /* to wakeup waiters */
+	pthread_mutex_unlock(&_lock_mutex);
+	DEBUGLOG("Locked resource %s, lockid=%d, mode=%s\n",
+		 resource, lck->lockid, _get_mode(lck->mode));
+
+	return 0;
+bad:
+	pthread_cond_broadcast(&_lock_cond); /* to wakeup waiters */
+	pthread_mutex_unlock(&_lock_mutex);
+	DEBUGLOG("Failed to lock resource %s\n", resource);
+
+	return 1; /* fail */
+}
+
+static int _unlock_resource(const char *resource, int lockid)
+{
+	struct lock *lck;
+	struct dm_list *head;
+	int r = 1;
+
+	if (lockid < 0) {
+		DEBUGLOG("Not tracking unlock of lockid -1: %s, lockid=%d\n",
+			 resource, lockid);
+		return 1;
+	}
+
+	DEBUGLOG("Unlocking resource %s, lockid=%d\n", resource, lockid);
+	pthread_mutex_lock(&_lock_mutex);
+	pthread_cond_broadcast(&_lock_cond); /* wakeup waiters */
+
+	if (!(head = dm_hash_lookup(_locks, resource))) {
+		pthread_mutex_unlock(&_lock_mutex);
+		DEBUGLOG("Resource %s is not locked.\n", resource);
+		return 1;
+	}
+
+	dm_list_iterate_items(lck, head)
+		if (lck->lockid == lockid) {
+			dm_list_del(&lck->list);
+			dm_free(lck);
+			r = 0;
+			goto out;
+		}
+
+	DEBUGLOG("Resource %s has wrong lockid %d.\n", resource, lockid);
+out:
+	if (dm_list_empty(head)) {
+		//DEBUGLOG("Resource %s is no longer hashed (lockid=%d).\n", resource, lockid);
+		dm_hash_remove(_locks, resource);
+		dm_free(head);
+	}
+
+	pthread_mutex_unlock(&_lock_mutex);
+
+	return r;
+}
+
+static int _is_quorate(void)
+{
+	return 1;
+}
+
+static int _get_main_cluster_fd(void)
+{
+	return listen_fd;
+}
+
+static int _cluster_fd_callback(struct local_client *fd, char *buf, int len,
+				const char *csid,
+				struct local_client **new_client)
+{
+	return 1;
+}
+
+static int _cluster_send_message(const void *buf, int msglen,
+				 const char *csid,
+				 const char *errtext)
+{
+	return 0;
+}
+
+static int _get_cluster_name(char *buf, int buflen)
+{
+	return dm_strncpy(buf, "localcluster", buflen) ? 0 : 1;
+}
+
+static struct cluster_ops _cluster_singlenode_ops = {
+	.name                     = "singlenode",
+	.cluster_init_completed   = NULL,
+	.cluster_send_message     = _cluster_send_message,
+	.name_from_csid           = _name_from_csid,
+	.csid_from_name           = _csid_from_name,
+	.get_num_nodes            = _get_num_nodes,
+	.cluster_fd_callback      = _cluster_fd_callback,
+	.get_main_cluster_fd      = _get_main_cluster_fd,
+	.cluster_do_node_callback = _cluster_do_node_callback,
+	.is_quorate               = _is_quorate,
+	.get_our_csid             = _get_our_csid,
+	.add_up_node              = _add_up_node,
+	.reread_config            = NULL,
+	.cluster_closedown        = _cluster_closedown,
+	.get_cluster_name         = _get_cluster_name,
+	.sync_lock                = _lock_resource,
+	.sync_unlock              = _unlock_resource,
+};
+
+struct cluster_ops *init_singlenode_cluster(void)
+{
+	if (!_init_cluster())
+		return &_cluster_singlenode_ops;
+
+	return NULL;
+}

daemons/clvmd/clvmd.h

@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2002-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU General Public License v.2.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef _CLVMD_H
+#define _CLVMD_H
+
+#define CLVMD_MAJOR_VERSION 0
+#define CLVMD_MINOR_VERSION 2
+#define CLVMD_PATCH_VERSION 1
+
+/* Default time (in seconds) we will wait for all remote commands to execute
+   before declaring them dead */
+#define DEFAULT_CMD_TIMEOUT 60
+
+/* One of these for each reply we get from command execution on a node */
+struct node_reply {
+	char node[MAX_CLUSTER_MEMBER_NAME_LEN];
+	char *replymsg;
+	int status;
+	struct node_reply *next;
+};
+
+typedef enum {DEBUG_OFF, DEBUG_STDERR, DEBUG_SYSLOG} debug_t;
+
+/*
+ * These exist for the use of local sockets only when we are
+ * collecting responses from all cluster nodes
+ */
+struct localsock_bits {
+	struct node_reply *replies;
+	int num_replies;
+	int expected_replies;
+	time_t sent_time;	/* So we can check for timeouts */
+	int in_progress;	/* Only execute one cmd at a time per client */
+	int sent_out;		/* Flag to indicate that a command was sent
+				   to remote nodes */
+	void *private;		/* Private area for command processor use */
+	void *cmd;		/* Whole command as passed down local socket */
+	int cmd_len;		/* Length of above */
+	int pipe;		/* Pipe to send PRE completion status down */
+	int finished;		/* Flag to tell subthread to exit */
+	int all_success;	/* Set to 0 if any node (or the pre_command)
+				   failed */
+	int cleanup_needed;     /* helper for cleanup_zombie */
+	struct local_client *pipe_client;
+	pthread_t threadid;
+	enum { PRE_COMMAND, POST_COMMAND } state;
+	pthread_mutex_t mutex;	/* Main thread and worker synchronisation */
+	pthread_cond_t cond;
+};
+
+/* Entries for PIPE clients */
+struct pipe_bits {
+	struct local_client *client;	/* Actual (localsock) client */
+	pthread_t threadid;		/* Our own copy of the thread id */
+};
+
+/* Entries for Network socket clients */
+struct netsock_bits {
+	void *private;
+	int flags;
+};
+
+typedef int (*fd_callback_t) (struct local_client * fd, char *buf, int len,
+			      const char *csid,
+			      struct local_client ** new_client);
+
+/* One of these for each fd we are listening on */
+struct local_client {
+	int fd;
+	enum { CLUSTER_MAIN_SOCK, CLUSTER_DATA_SOCK, LOCAL_RENDEZVOUS,
+		    LOCAL_SOCK, THREAD_PIPE, CLUSTER_INTERNAL } type;
+	struct local_client *next;
+	unsigned short xid;
+	fd_callback_t callback;
+	uint8_t removeme;
+
+	union {
+		struct localsock_bits localsock;
+		struct pipe_bits pipe;
+		struct netsock_bits net;
+	} bits;
+};
+
+#define DEBUGLOG(fmt, args...) debuglog(fmt, ## args)
+
+#ifndef max
+#define max(a,b) ((a)>(b)?(a):(b))
+#endif
+
+/* The real command processor is in clvmd-command.c */
+extern int do_command(struct local_client *client, struct clvm_header *msg,
+		      int msglen, char **buf, int buflen, int *retlen);
+
+/* Pre and post command routines are called only on the local node */
+extern int do_pre_command(struct local_client *client);
+extern int do_post_command(struct local_client *client);
+extern void cmd_client_cleanup(struct local_client *client);
+extern int add_client(struct local_client *new_client);
+
+extern void clvmd_cluster_init_completed(void);
+extern void process_message(struct local_client *client, char *buf,
+			    int len, const char *csid);
+extern void debuglog(const char *fmt, ... )
+  __attribute__ ((format(printf, 1, 2)));
+
+void clvmd_set_debug(debug_t new_de);
+debug_t clvmd_get_debug(void);
+int clvmd_get_foreground(void);
+
+int sync_lock(const char *resource, int mode, int flags, int *lockid);
+int sync_unlock(const char *resource, int lockid);
+
+#endif

daemons/clvmd/lvm-functions.c

@@ -0,0 +1,927 @@
+/*
+ * Copyright (C) 2002-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004-2012 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU General Public License v.2.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "clvmd-common.h"
+
+#include <pthread.h>
+
+#include "clvm.h"
+#include "clvmd-comms.h"
+#include "clvmd.h"
+#include "lvm-functions.h"
+
+/* LVM2 headers */
+#include "toolcontext.h"
+#include "lvmcache.h"
+#include "lvm-globals.h"
+#include "activate.h"
+#include "archiver.h"
+#include "memlock.h"
+
+#include <syslog.h>
+
+static struct cmd_context *cmd = NULL;
+static struct dm_hash_table *lv_hash = NULL;
+static pthread_mutex_t lv_hash_lock;
+static pthread_mutex_t lvm_lock;
+static char last_error[1024];
+
+struct lv_info {
+	int lock_id;
+	int lock_mode;
+};
+
+static const char *decode_full_locking_cmd(uint32_t cmdl)
+{
+	static char buf[128];
+	const char *type;
+	const char *scope;
+	const char *command;
+
+	switch (cmdl & LCK_TYPE_MASK) {
+	case LCK_NULL:
+		type = "NULL";
+		break;
+	case LCK_READ:
+		type = "READ";
+		break;
+	case LCK_PREAD:
+		type = "PREAD";
+		break;
+	case LCK_WRITE:
+		type = "WRITE";
+		break;
+	case LCK_EXCL:
+		type = "EXCL";
+		break;
+	case LCK_UNLOCK:
+		type = "UNLOCK";
+		break;
+	default:
+		type = "unknown";
+		break;
+	}
+
+	switch (cmdl & LCK_SCOPE_MASK) {
+	case LCK_VG:
+		scope = "VG";
+		command = "LCK_VG";
+		break;
+	case LCK_LV:
+		scope = "LV";
+		switch (cmdl & LCK_MASK) {
+		case LCK_LV_EXCLUSIVE & LCK_MASK:
+			command = "LCK_LV_EXCLUSIVE";
+			break;
+		case LCK_LV_SUSPEND & LCK_MASK:
+			command = "LCK_LV_SUSPEND";
+			break;
+		case LCK_LV_RESUME & LCK_MASK:
+			command = "LCK_LV_RESUME";
+			break;
+		case LCK_LV_ACTIVATE & LCK_MASK:
+			command = "LCK_LV_ACTIVATE";
+			break;
+		case LCK_LV_DEACTIVATE & LCK_MASK:
+			command = "LCK_LV_DEACTIVATE";
+			break;
+		default:
+			command = "unknown";
+			break;
+		}
+		break;
+	default:
+		scope = "unknown";
+		command = "unknown";
+		break;
+	}
+
+	sprintf(buf, "0x%x %s (%s|%s%s%s%s%s)", cmdl, command, type, scope,
+		cmdl & LCK_NONBLOCK   ? "|NONBLOCK" : "",
+		cmdl & LCK_HOLD       ? "|HOLD" : "",
+		cmdl & LCK_CLUSTER_VG ? "|CLUSTER_VG" : "",
+		cmdl & LCK_CACHE      ? "|CACHE" : "");
+
+	return buf;
+}
+
+/*
+ * Only processes 8 bits: excludes LCK_CACHE.
+ */
+static const char *decode_locking_cmd(unsigned char cmdl)
+{
+	return decode_full_locking_cmd((uint32_t) cmdl);
+}
+
+static const char *decode_flags(unsigned char flags)
+{
+	static char buf[128];
+	int len;
+
+	len = sprintf(buf, "0x%x ( %s%s%s%s%s%s%s%s)", flags,
+		flags & LCK_PARTIAL_MODE	  ? "PARTIAL_MODE|" : "",
+		flags & LCK_MIRROR_NOSYNC_MODE	  ? "MIRROR_NOSYNC|" : "",
+		flags & LCK_DMEVENTD_MONITOR_MODE ? "DMEVENTD_MONITOR|" : "",
+		flags & LCK_ORIGIN_ONLY_MODE ? "ORIGIN_ONLY|" : "",
+		flags & LCK_TEST_MODE ? "TEST|" : "",
+		flags & LCK_CONVERT_MODE ? "CONVERT|" : "",
+		flags & LCK_DMEVENTD_MONITOR_IGNORE ? "DMEVENTD_MONITOR_IGNORE|" : "",
+		flags & LCK_REVERT_MODE ? "REVERT|" : "");
+
+	if (len > 1)
+		buf[len - 2] = ' ';
+	else
+		buf[0] = '\0';
+
+	return buf;
+}
+
+char *get_last_lvm_error(void)
+{
+	return last_error;
+}
+
+/*
+ * Hash lock info helpers
+ */
+static struct lv_info *lookup_info(const char *resource)
+{
+	struct lv_info *lvi;
+
+	pthread_mutex_lock(&lv_hash_lock);
+	lvi = dm_hash_lookup(lv_hash, resource);
+	pthread_mutex_unlock(&lv_hash_lock);
+
+	return lvi;
+}
+
+static int insert_info(const char *resource, struct lv_info *lvi)
+{
+	int ret;
+
+	pthread_mutex_lock(&lv_hash_lock);
+	ret = dm_hash_insert(lv_hash, resource, lvi);
+	pthread_mutex_unlock(&lv_hash_lock);
+
+	return ret;
+}
+
+static void remove_info(const char *resource)
+{
+	int num_open;
+
+	pthread_mutex_lock(&lv_hash_lock);
+	dm_hash_remove(lv_hash, resource);
+
+	/* When last lock is remove, validate there are not left opened devices */
+	if (!dm_hash_get_first(lv_hash)) {
+		if (critical_section())
+			log_error(INTERNAL_ERROR "No volumes are locked however clvmd is in activation mode critical section.");
+		if ((num_open = dev_cache_check_for_open_devices()))
+			log_error(INTERNAL_ERROR "No volumes are locked however %d devices are still open.", num_open);
+	}
+
+	pthread_mutex_unlock(&lv_hash_lock);
+}
+
+/*
+ * Return the mode a lock is currently held at (or -1 if not held)
+ */
+static int get_current_lock(char *resource)
+{
+	struct lv_info *lvi;
+
+	if ((lvi = lookup_info(resource)))
+		return lvi->lock_mode;
+
+	return -1;
+}
+
+
+void init_lvhash(void)
+{
+	/* Create hash table for keeping LV locks & status */
+	lv_hash = dm_hash_create(1024);
+	pthread_mutex_init(&lv_hash_lock, NULL);
+	pthread_mutex_init(&lvm_lock, NULL);
+}
+
+/* Called at shutdown to tidy the lockspace */
+void destroy_lvhash(void)
+{
+	struct dm_hash_node *v;
+	struct lv_info *lvi;
+	char *resource;
+	int status;
+
+	pthread_mutex_lock(&lv_hash_lock);
+
+	dm_hash_iterate(v, lv_hash) {
+		lvi = dm_hash_get_data(lv_hash, v);
+		resource = dm_hash_get_key(lv_hash, v);
+
+		if ((status = sync_unlock(resource, lvi->lock_id)))
+			DEBUGLOG("unlock_all. unlock failed(%d): %s\n",
+				 status,  strerror(errno));
+		dm_free(lvi);
+	}
+
+	dm_hash_destroy(lv_hash);
+	lv_hash = NULL;
+
+	pthread_mutex_unlock(&lv_hash_lock);
+}
+
+/* Gets a real lock and keeps the info in the hash table */
+static int hold_lock(char *resource, int mode, int flags)
+{
+	int status;
+	int saved_errno;
+	struct lv_info *lvi;
+
+	/* Mask off invalid options */
+	flags &= LCKF_NOQUEUE | LCKF_CONVERT;
+
+	lvi = lookup_info(resource);
+
+	if (lvi) {
+		if (lvi->lock_mode == mode) {
+			DEBUGLOG("hold_lock, lock mode %d already held\n",
+				 mode);
+			return 0;
+		}
+		if ((lvi->lock_mode == LCK_EXCL) && (mode == LCK_WRITE)) {
+			DEBUGLOG("hold_lock, lock already held LCK_EXCL, "
+				 "ignoring LCK_WRITE request\n");
+			return 0;
+		}
+	}
+
+	/* Only allow explicit conversions */
+	if (lvi && !(flags & LCKF_CONVERT)) {
+		errno = EBUSY;
+		return -1;
+	}
+	if (lvi) {
+		/* Already exists - convert it */
+		status = sync_lock(resource, mode, flags, &lvi->lock_id);
+		saved_errno = errno;
+		if (!status)
+			lvi->lock_mode = mode;
+		else
+			DEBUGLOG("hold_lock. convert to %d failed: %s\n", mode,
+				 strerror(errno));
+		errno = saved_errno;
+	} else {
+		if (!(lvi = dm_malloc(sizeof(struct lv_info)))) {
+			errno = ENOMEM;
+			return -1;
+		}
+
+		lvi->lock_mode = mode;
+		lvi->lock_id = 0;
+		status = sync_lock(resource, mode, flags & ~LCKF_CONVERT, &lvi->lock_id);
+		saved_errno = errno;
+		if (status) {
+			dm_free(lvi);
+			DEBUGLOG("hold_lock. lock at %d failed: %s\n", mode,
+				 strerror(errno));
+		} else
+			if (!insert_info(resource, lvi)) {
+				errno = ENOMEM;
+				return -1;
+			}
+
+		errno = saved_errno;
+	}
+	return status;
+}
+
+/* Unlock and remove it from the hash table */
+static int hold_unlock(char *resource)
+{
+	struct lv_info *lvi;
+	int status;
+	int saved_errno;
+
+	if (!(lvi = lookup_info(resource))) {
+		DEBUGLOG("hold_unlock, lock not already held\n");
+		return 0;
+	}
+
+	status = sync_unlock(resource, lvi->lock_id);
+	saved_errno = errno;
+	if (!status) {
+		remove_info(resource);
+		dm_free(lvi);
+	} else {
+		DEBUGLOG("hold_unlock. unlock failed(%d): %s\n", status,
+			 strerror(errno));
+	}
+
+	errno = saved_errno;
+	return status;
+}
+
+/* Watch the return codes here.
+   liblvm API functions return 1(true) for success, 0(false) for failure and don't set errno.
+   libdlm API functions return 0 for success, -1 for failure and do set errno.
+   These functions here return 0 for success or >0 for failure (where the retcode is errno)
+*/
+
+/* Activate LV exclusive or non-exclusive */
+static int do_activate_lv(char *resource, unsigned char command, unsigned char lock_flags, int mode)
+{
+	int oldmode;
+	int status;
+	int activate_lv;
+	int exclusive = 0;
+	struct lvinfo lvi;
+
+	/* Is it already open ? */
+	oldmode = get_current_lock(resource);
+	if (oldmode == mode && (command & LCK_CLUSTER_VG)) {
+		DEBUGLOG("do_activate_lv, lock already held at %d\n", oldmode);
+		return 0;	/* Nothing to do */
+	}
+
+	/* Does the config file want us to activate this LV ? */
+	if (!lv_activation_filter(cmd, resource, &activate_lv, NULL))
+		return EIO;
+
+	if (!activate_lv)
+		return 0;	/* Success, we did nothing! */
+
+	/* Do we need to activate exclusively? */
+	if ((activate_lv == 2) || (mode == LCK_EXCL)) {
+		exclusive = 1;
+		mode = LCK_EXCL;
+	}
+
+	/*
+	 * Try to get the lock if it's a clustered volume group.
+	 * Use lock conversion only if requested, to prevent implicit conversion
+	 * of exclusive lock to shared one during activation.
+	 */
+	if (!test_mode() && command & LCK_CLUSTER_VG) {
+		status = hold_lock(resource, mode, LCKF_NOQUEUE | ((lock_flags & LCK_CONVERT_MODE) ? LCKF_CONVERT:0));
+		if (status) {
+			/* Return an LVM-sensible error for this.
+			 * Forcing EIO makes the upper level return this text
+			 * rather than the strerror text for EAGAIN.
+			 */
+			if (errno == EAGAIN) {
+				sprintf(last_error, "Volume is busy on another node");
+				errno = EIO;
+			}
+			return errno;
+		}
+	}
+
+	/* If it's suspended then resume it */
+	if (!lv_info_by_lvid(cmd, resource, 0, &lvi, 0, 0))
+		goto error;
+
+	if (lvi.suspended) {
+		critical_section_inc(cmd, "resuming");
+		if (!lv_resume(cmd, resource, 0, NULL)) {
+			critical_section_dec(cmd, "resumed");
+			goto error;
+		}
+	}
+
+	/* Now activate it */
+	if (!lv_activate(cmd, resource, exclusive, 0, 0, NULL))
+		goto error;
+
+	return 0;
+
+error:
+	if (!test_mode() && (oldmode == -1 || oldmode != mode))
+		(void)hold_unlock(resource);
+	return EIO;
+}
+
+/* Resume the LV if it was active */
+static int do_resume_lv(char *resource, unsigned char command, unsigned char lock_flags)
+{
+	int oldmode, origin_only, exclusive, revert;
+
+	/* Is it open ? */
+	oldmode = get_current_lock(resource);
+	if (oldmode == -1 && (command & LCK_CLUSTER_VG)) {
+		DEBUGLOG("do_resume_lv, lock not already held\n");
+		return 0;	/* We don't need to do anything */
+	}
+	origin_only = (lock_flags & LCK_ORIGIN_ONLY_MODE) ? 1 : 0;
+	exclusive = (oldmode == LCK_EXCL) ? 1 : 0;
+	revert = (lock_flags & LCK_REVERT_MODE) ? 1 : 0;
+
+	if (!lv_resume_if_active(cmd, resource, origin_only, exclusive, revert, NULL))
+		return EIO;
+
+	return 0;
+}
+
+/* Suspend the device if active */
+static int do_suspend_lv(char *resource, unsigned char command, unsigned char lock_flags)
+{
+	int oldmode;
+	unsigned origin_only = (lock_flags & LCK_ORIGIN_ONLY_MODE) ? 1 : 0;
+	unsigned exclusive;
+
+	/* Is it open ? */
+	oldmode = get_current_lock(resource);
+	if (oldmode == -1 && (command & LCK_CLUSTER_VG)) {
+		DEBUGLOG("do_suspend_lv, lock not already held\n");
+		return 0; /* Not active, so it's OK */
+	}
+
+	exclusive = (oldmode == LCK_EXCL) ? 1 : 0;
+
+	/* Always call lv_suspend to read commited and precommited data */
+	if (!lv_suspend_if_active(cmd, resource, origin_only, exclusive, NULL, NULL))
+		return EIO;
+
+	return 0;
+}
+
+static int do_deactivate_lv(char *resource, unsigned char command, unsigned char lock_flags)
+{
+	int oldmode;
+	int status;
+
+	/* Is it open ? */
+	oldmode = get_current_lock(resource);
+	if (oldmode == -1 && (command & LCK_CLUSTER_VG)) {
+		DEBUGLOG("do_deactivate_lock, lock not already held\n");
+		return 0;	/* We don't need to do anything */
+	}
+
+	if (!lv_deactivate(cmd, resource, NULL))
+		return EIO;
+
+	if (!test_mode() && command & LCK_CLUSTER_VG) {
+		status = hold_unlock(resource);
+		if (status)
+			return errno;
+	}
+
+	return 0;
+}
+
+const char *do_lock_query(char *resource)
+{
+	int mode;
+	const char *type;
+
+	mode = get_current_lock(resource);
+	switch (mode) {
+	case LCK_NULL: type = "NL"; break;
+	case LCK_READ: type = "CR"; break;
+	case LCK_PREAD:type = "PR"; break;
+	case LCK_WRITE:type = "PW"; break;
+	case LCK_EXCL: type = "EX"; break;
+	default: type = NULL;
+	}
+
+	DEBUGLOG("do_lock_query: resource '%s', mode %i (%s)\n", resource, mode, type ?: "--");
+
+	return type;
+}
+
+/* This is the LOCK_LV part that happens on all nodes in the cluster -
+   it is responsible for the interaction with device-mapper and LVM */
+int do_lock_lv(unsigned char command, unsigned char lock_flags, char *resource)
+{
+	int status = 0;
+
+	DEBUGLOG("do_lock_lv: resource '%s', cmd = %s, flags = %s, critical_section = %d\n",
+		 resource, decode_locking_cmd(command), decode_flags(lock_flags), critical_section());
+
+	if (!cmd->initialized.config || config_files_changed(cmd)) {
+		/* Reinitialise various settings inc. logging, filters */
+		if (do_refresh_cache()) {
+			log_error("Updated config file invalid. Aborting.");
+			return EINVAL;
+		}
+	}
+
+	pthread_mutex_lock(&lvm_lock);
+	init_test((lock_flags & LCK_TEST_MODE) ? 1 : 0);
+
+	if (lock_flags & LCK_MIRROR_NOSYNC_MODE)
+		init_mirror_in_sync(1);
+
+	if (lock_flags & LCK_DMEVENTD_MONITOR_IGNORE)
+		init_dmeventd_monitor(DMEVENTD_MONITOR_IGNORE);
+	else {
+		if (lock_flags & LCK_DMEVENTD_MONITOR_MODE)
+			init_dmeventd_monitor(1);
+		else
+			init_dmeventd_monitor(0);
+	}
+
+	cmd->partial_activation = (lock_flags & LCK_PARTIAL_MODE) ? 1 : 0;
+
+	/* clvmd should never try to read suspended device */
+	init_ignore_suspended_devices(1);
+
+	switch (command & LCK_MASK) {
+	case LCK_LV_EXCLUSIVE:
+		status = do_activate_lv(resource, command, lock_flags, LCK_EXCL);
+		break;
+
+	case LCK_LV_SUSPEND:
+		status = do_suspend_lv(resource, command, lock_flags);
+		break;
+
+	case LCK_UNLOCK:
+	case LCK_LV_RESUME:	/* if active */
+		status = do_resume_lv(resource, command, lock_flags);
+		break;
+
+	case LCK_LV_ACTIVATE:
+		status = do_activate_lv(resource, command, lock_flags, LCK_READ);
+		break;
+
+	case LCK_LV_DEACTIVATE:
+		status = do_deactivate_lv(resource, command, lock_flags);
+		break;
+
+	default:
+		DEBUGLOG("Invalid LV command 0x%x\n", command);
+		status = EINVAL;
+		break;
+	}
+
+	if (lock_flags & LCK_MIRROR_NOSYNC_MODE)
+		init_mirror_in_sync(0);
+
+	cmd->partial_activation = 0;
+
+	/* clean the pool for another command */
+	dm_pool_empty(cmd->mem);
+	init_test(0);
+	pthread_mutex_unlock(&lvm_lock);
+
+	DEBUGLOG("Command return is %d, critical_section is %d\n", status, critical_section());
+	return status;
+}
+
+/* Functions to do on the local node only BEFORE the cluster-wide stuff above happens */
+int pre_lock_lv(unsigned char command, unsigned char lock_flags, char *resource)
+{
+	/* Nearly all the stuff happens cluster-wide. Apart from SUSPEND. Here we get the
+	   lock out on this node (because we are the node modifying the metadata)
+	   before suspending cluster-wide.
+	   LCKF_CONVERT is used always, local node is going to modify metadata
+	 */
+	if ((command & (LCK_SCOPE_MASK | LCK_TYPE_MASK)) == LCK_LV_SUSPEND &&
+	    (command & LCK_CLUSTER_VG)) {
+		DEBUGLOG("pre_lock_lv: resource '%s', cmd = %s, flags = %s\n",
+			 resource, decode_locking_cmd(command), decode_flags(lock_flags));
+
+		if (!(lock_flags & LCK_TEST_MODE) &&
+		    hold_lock(resource, LCK_WRITE, LCKF_NOQUEUE | LCKF_CONVERT))
+			return errno;
+	}
+	return 0;
+}
+
+/* Functions to do on the local node only AFTER the cluster-wide stuff above happens */
+int post_lock_lv(unsigned char command, unsigned char lock_flags,
+		 char *resource)
+{
+	int status;
+	unsigned origin_only = (lock_flags & LCK_ORIGIN_ONLY_MODE) ? 1 : 0;
+
+	/* Opposite of above, done on resume after a metadata update */
+	if ((command & (LCK_SCOPE_MASK | LCK_TYPE_MASK)) == LCK_LV_RESUME &&
+	    (command & LCK_CLUSTER_VG)) {
+		int oldmode;
+
+		DEBUGLOG("post_lock_lv: resource '%s', cmd = %s, flags = %s\n",
+			 resource, decode_locking_cmd(command), decode_flags(lock_flags));
+
+		/* If the lock state is PW then restore it to what it was */
+		oldmode = get_current_lock(resource);
+		if (oldmode == LCK_WRITE) {
+			struct lvinfo lvi;
+
+			pthread_mutex_lock(&lvm_lock);
+			status = lv_info_by_lvid(cmd, resource, origin_only, &lvi, 0, 0);
+			pthread_mutex_unlock(&lvm_lock);
+			if (!status)
+				return EIO;
+
+			if (!(lock_flags & LCK_TEST_MODE)) {
+				if (lvi.exists) {
+					if (hold_lock(resource, LCK_READ, LCKF_CONVERT))
+						return errno;
+				} else if (hold_unlock(resource))
+					return errno;
+			}
+		}
+	}
+	return 0;
+}
+
+int do_refresh_cache(void)
+{
+	DEBUGLOG("Refreshing context\n");
+	log_notice("Refreshing context");
+
+	pthread_mutex_lock(&lvm_lock);
+
+	if (!refresh_toolcontext(cmd)) {
+		pthread_mutex_unlock(&lvm_lock);
+		return -1;
+	}
+
+	init_ignore_suspended_devices(1);
+	lvmcache_label_scan(cmd);
+	label_scan_destroy(cmd); /* destroys bcache (to close devs), keeps lvmcache */
+	dm_pool_empty(cmd->mem);
+
+	pthread_mutex_unlock(&lvm_lock);
+
+	return 0;
+}
+
+/*
+ * Handle VG lock - drop metadata or update lvmcache state
+ */
+void do_lock_vg(unsigned char command, unsigned char lock_flags, char *resource)
+{
+	uint32_t lock_cmd = command;
+	char *vgname = resource + 2;
+
+	lock_cmd &= (LCK_SCOPE_MASK | LCK_TYPE_MASK | LCK_HOLD);
+
+	/*
+	 * Check if LCK_CACHE should be set. All P_ locks except # are cache related.
+	 */
+	if (strncmp(resource, "P_#", 3) && !strncmp(resource, "P_", 2))
+		lock_cmd |= LCK_CACHE;
+
+	DEBUGLOG("do_lock_vg: resource '%s', cmd = %s, flags = %s, critical_section = %d\n",
+		 resource, decode_full_locking_cmd(lock_cmd), decode_flags(lock_flags), critical_section());
+
+	/* P_#global causes a full cache refresh */
+	if (!strcmp(resource, "P_" VG_GLOBAL)) {
+		do_refresh_cache();
+		return;
+	}
+
+	pthread_mutex_lock(&lvm_lock);
+	init_test((lock_flags & LCK_TEST_MODE) ? 1 : 0);
+
+	switch (lock_cmd) {
+		case LCK_VG_COMMIT:
+			DEBUGLOG("vg_commit notification for VG %s\n", vgname);
+			lvmcache_commit_metadata(vgname);
+			break;
+		case LCK_VG_REVERT:
+			DEBUGLOG("vg_revert notification for VG %s\n", vgname);
+			lvmcache_drop_metadata(vgname, 1);
+			break;
+		case LCK_VG_DROP_CACHE:
+		default:
+			DEBUGLOG("Invalidating cached metadata for VG %s\n", vgname);
+			lvmcache_drop_metadata(vgname, 0);
+	}
+
+	init_test(0);
+	pthread_mutex_unlock(&lvm_lock);
+}
+
+/*
+ * Ideally, clvmd should be started before any LVs are active
+ * but this may not be the case...
+ * I suppose this also comes in handy if clvmd crashes, not that it would!
+ */
+static int get_initial_state(struct dm_hash_table *excl_uuid)
+{
+	int lock_mode;
+	char lv[65], vg[65], flags[26], vg_flags[26]; /* with space for '\0' */
+	char uuid[65];
+	char line[255];
+	char *lvs_cmd;
+	const char *lvm_binary = getenv("LVM_BINARY") ? : LVM_PATH;
+	FILE *lvs;
+
+	if (dm_asprintf(&lvs_cmd, "%s lvs  --config 'log{command_names=0 prefix=\"\"}' "
+			"--nolocking --noheadings -o vg_uuid,lv_uuid,lv_attr,vg_attr",
+			lvm_binary) < 0)
+		return_0;
+
+	/* FIXME: Maybe link and use liblvm2cmd directly instead of fork */
+	if (!(lvs = popen(lvs_cmd, "r"))) {
+		dm_free(lvs_cmd);
+		return 0;
+	}
+
+	while (fgets(line, sizeof(line), lvs)) {
+	        if (sscanf(line, "%64s %64s %25s %25s\n", vg, lv, flags, vg_flags) == 4) {
+
+			/* States: s:suspended a:active S:dropped snapshot I:invalid snapshot */
+		        if (strlen(vg) == 38 &&                         /* is is a valid UUID ? */
+			    (flags[4] == 'a' || flags[4] == 's') &&	/* is it active or suspended? */
+			    vg_flags[5] == 'c') {			/* is it clustered ? */
+				/* Convert hyphen-separated UUIDs into one */
+				memcpy(&uuid[0], &vg[0], 6);
+				memcpy(&uuid[6], &vg[7], 4);
+				memcpy(&uuid[10], &vg[12], 4);
+				memcpy(&uuid[14], &vg[17], 4);
+				memcpy(&uuid[18], &vg[22], 4);
+				memcpy(&uuid[22], &vg[27], 4);
+				memcpy(&uuid[26], &vg[32], 6);
+				memcpy(&uuid[32], &lv[0], 6);
+				memcpy(&uuid[38], &lv[7], 4);
+				memcpy(&uuid[42], &lv[12], 4);
+				memcpy(&uuid[46], &lv[17], 4);
+				memcpy(&uuid[50], &lv[22], 4);
+				memcpy(&uuid[54], &lv[27], 4);
+				memcpy(&uuid[58], &lv[32], 6);
+				uuid[64] = '\0';
+
+				/* Look for this lock in the list of EX locks
+				   we were passed on the command-line */
+				lock_mode = (dm_hash_lookup(excl_uuid, uuid)) ?
+					LCK_EXCL : LCK_READ;
+
+				DEBUGLOG("getting initial lock for %s\n", uuid);
+				if (hold_lock(uuid, lock_mode, LCKF_NOQUEUE))
+					DEBUGLOG("Failed to hold lock %s\n", uuid);
+			}
+		}
+	}
+	if (pclose(lvs))
+		DEBUGLOG("lvs pclose failed: %s\n", strerror(errno));
+
+	dm_free(lvs_cmd);
+
+	return 1;
+}
+
+static void lvm2_log_fn(int level, const char *file, int line, int dm_errno,
+			const char *message)
+{
+
+	/* Send messages to the normal LVM2 logging system too,
+	   so we get debug output when it's asked for.
+ 	   We need to NULL the function ptr otherwise it will just call
+	   back into here! */
+	init_log_fn(NULL);
+	print_log(level, file, line, dm_errno, "%s", message);
+	init_log_fn(lvm2_log_fn);
+
+	/*
+	 * Ignore non-error messages, but store the latest one for returning
+	 * to the user.
+	 */
+	if (level != _LOG_ERR && level != _LOG_FATAL)
+		return;
+
+	(void) dm_strncpy(last_error, message, sizeof(last_error));
+}
+
+/* This checks some basic cluster-LVM configuration stuff */
+static void check_config(void)
+{
+	int locking_type;
+
+	locking_type = find_config_tree_int(cmd, global_locking_type_CFG, NULL);
+
+	if (locking_type == 3) /* compiled-in cluster support */
+		return;
+
+	if (locking_type == 2) { /* External library, check name */
+		const char *libname;
+
+		libname = find_config_tree_str(cmd, global_locking_library_CFG, NULL);
+		if (libname && strstr(libname, "liblvm2clusterlock.so"))
+			return;
+
+		log_error("Incorrect LVM locking library specified in lvm.conf, cluster operations may not work.");
+		return;
+	}
+	log_error("locking_type not set correctly in lvm.conf, cluster operations will not work.");
+}
+
+/* Backups up the LVM metadata if it's changed */
+void lvm_do_backup(const char *vgname)
+{
+	struct volume_group * vg;
+	int consistent = 0;
+
+	DEBUGLOG("Triggering backup of VG metadata for %s.\n", vgname);
+
+	pthread_mutex_lock(&lvm_lock);
+
+	vg = vg_read_internal(cmd, vgname, NULL /*vgid*/, 0, 0, WARN_PV_READ, &consistent);
+
+	if (vg && consistent)
+		check_current_backup(vg);
+	else
+		log_error("Error backing up metadata, can't find VG for group %s", vgname);
+
+	release_vg(vg);
+	dm_pool_empty(cmd->mem);
+
+	pthread_mutex_unlock(&lvm_lock);
+}
+
+struct dm_hash_node *get_next_excl_lock(struct dm_hash_node *v, char **name)
+{
+	struct lv_info *lvi;
+
+	*name = NULL;
+	if (!v)
+		v = dm_hash_get_first(lv_hash);
+
+	do {
+		if (v) {
+			lvi = dm_hash_get_data(lv_hash, v);
+			DEBUGLOG("Looking for EX locks. found %x mode %d\n", lvi->lock_id, lvi->lock_mode);
+
+			if (lvi->lock_mode == LCK_EXCL) {
+				*name = dm_hash_get_key(lv_hash, v);
+			}
+			v = dm_hash_get_next(lv_hash, v);
+		}
+	} while (v && !*name);
+
+	if (*name)
+		DEBUGLOG("returning EXclusive UUID %s\n", *name);
+	return v;
+}
+
+void lvm_do_fs_unlock(void)
+{
+	pthread_mutex_lock(&lvm_lock);
+	DEBUGLOG("Syncing device names\n");
+	fs_unlock();
+	pthread_mutex_unlock(&lvm_lock);
+}
+
+/* Called to initialise the LVM context of the daemon */
+int init_clvm(struct dm_hash_table *excl_uuid)
+{
+	/* Use LOG_DAEMON for syslog messages instead of LOG_USER */
+	init_syslog(LOG_DAEMON);
+	openlog("clvmd", LOG_PID, LOG_DAEMON);
+
+	/* Initialise already held locks */
+	if (!get_initial_state(excl_uuid))
+		log_error("Cannot load initial lock states.");
+
+	if (!udev_init_library_context())
+		stack;
+
+	if (!(cmd = create_toolcontext(1, NULL, 0, 1, 1, 1))) {
+		log_error("Failed to allocate command context");
+		udev_fin_library_context();
+		return 0;
+	}
+
+	if (stored_errno()) {
+		destroy_toolcontext(cmd);
+		return 0;
+	}
+
+	cmd->cmd_line = "clvmd";
+
+	/* Check lvm.conf is setup for cluster-LVM */
+	check_config();
+	init_ignore_suspended_devices(1);
+
+	/* Trap log messages so we can pass them back to the user */
+	init_log_fn(lvm2_log_fn);
+	memlock_inc_daemon(cmd);
+
+	return 1;
+}
+
+void destroy_lvm(void)
+{
+	if (cmd) {
+		memlock_dec_daemon(cmd);
+		destroy_toolcontext(cmd);
+		udev_fin_library_context();
+		cmd = NULL;
+	}
+}

daemons/clvmd/lvm-functions.h

@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2002-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004-2010 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU General Public License v.2.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* Functions in lvm-functions.c */
+
+#ifndef _LVM_FUNCTIONS_H
+#define _LVM_FUNCTIONS_H
+
+extern int pre_lock_lv(unsigned char lock_cmd, unsigned char lock_flags,
+		       char *resource);
+extern int do_lock_lv(unsigned char lock_cmd, unsigned char lock_flags,
+		      char *resource);
+extern const char *do_lock_query(char *resource);
+extern int post_lock_lv(unsigned char lock_cmd, unsigned char lock_flags,
+			char *resource);
+extern int do_refresh_cache(void);
+extern int init_clvm(struct dm_hash_table *excl_uuid);
+extern void destroy_lvm(void);
+extern void init_lvhash(void);
+extern void destroy_lvhash(void);
+extern void lvm_do_backup(const char *vgname);
+extern char *get_last_lvm_error(void);
+extern void do_lock_vg(unsigned char command, unsigned char lock_flags,
+		      char *resource);
+extern struct dm_hash_node *get_next_excl_lock(struct dm_hash_node *v, char **name);
+void lvm_do_fs_unlock(void);
+
+#endif

daemons/clvmd/refresh_clvmd.c

@@ -0,0 +1,382 @@
+/*
+ * Copyright (C) 2002-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004-2010 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU General Public License v.2.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* FIXME Remove duplicated functions from this file. */
+
+/*
+ * Send a command to a running clvmd from the command-line
+ */
+
+#include "clvmd-common.h"
+
+#include "clvm.h"
+#include "refresh_clvmd.h"
+
+#include <stddef.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+typedef struct lvm_response {
+	char node[255];
+	char *response;
+	int status;
+	int len;
+} lvm_response_t;
+
+/*
+ * This gets stuck at the start of memory we allocate so we
+ * can sanity-check it at deallocation time
+ */
+#define LVM_SIGNATURE 0x434C564D
+
+static int _clvmd_sock = -1;
+
+/* Open connection to the clvm daemon */
+static int _open_local_sock(void)
+{
+	int local_socket;
+	struct sockaddr_un sockaddr = { .sun_family = AF_UNIX };
+
+	if (!dm_strncpy(sockaddr.sun_path, CLVMD_SOCKNAME, sizeof(sockaddr.sun_path))) {
+		fprintf(stderr, "%s: clvmd socket name too long.", CLVMD_SOCKNAME);
+		return -1;
+	}
+
+	/* Open local socket */
+	if ((local_socket = socket(PF_UNIX, SOCK_STREAM, 0)) < 0) {
+		fprintf(stderr, "Local socket creation failed: %s", strerror(errno));
+		return -1;
+	}
+
+	if (connect(local_socket,(struct sockaddr *) &sockaddr,
+		    sizeof(sockaddr))) {
+		int saved_errno = errno;
+
+		fprintf(stderr, "connect() failed on local socket: %s\n",
+			  strerror(errno));
+		if (close(local_socket))
+			return -1;
+
+		errno = saved_errno;
+		return -1;
+	}
+
+	return local_socket;
+}
+
+/* Send a request and return the status */
+static int _send_request(const char *inbuf, int inlen, char **retbuf, int no_response)
+{
+	char outbuf[PIPE_BUF];
+	struct clvm_header *outheader = (struct clvm_header *) outbuf;
+	int len;
+	unsigned off;
+	int buflen;
+	int err;
+
+	/* Send it to CLVMD */
+ rewrite:
+	if ( (err = write(_clvmd_sock, inbuf, inlen)) != inlen) {
+	        if (err == -1 && errno == EINTR)
+		        goto rewrite;
+		fprintf(stderr, "Error writing data to clvmd: %s", strerror(errno));
+		return 0;
+	}
+	if (no_response)
+		return 1;
+
+	/* Get the response */
+ reread:
+	if ((len = read(_clvmd_sock, outbuf, sizeof(struct clvm_header))) < 0) {
+	        if (errno == EINTR)
+		        goto reread;
+		fprintf(stderr, "Error reading data from clvmd: %s", strerror(errno));
+		return 0;
+	}
+
+	if (len == 0) {
+		fprintf(stderr, "EOF reading CLVMD");
+		errno = ENOTCONN;
+		return 0;
+	}
+
+	/* Allocate buffer */
+	buflen = len + outheader->arglen;
+	*retbuf = dm_malloc(buflen);
+	if (!*retbuf) {
+		errno = ENOMEM;
+		return 0;
+	}
+
+	/* Copy the header */
+	memcpy(*retbuf, outbuf, len);
+	outheader = (struct clvm_header *) *retbuf;
+
+	/* Read the returned values */
+	off = 1;		/* we've already read the first byte */
+	while (off <= outheader->arglen && len > 0) {
+		len = read(_clvmd_sock, outheader->args + off,
+			   buflen - off - offsetof(struct clvm_header, args));
+		if (len > 0)
+			off += len;
+	}
+
+	/* Was it an error ? */
+	if (outheader->status != 0) {
+		errno = outheader->status;
+
+		/* Only return an error here if there are no node-specific
+		   errors present in the message that might have more detail */
+		if (!(outheader->flags & CLVMD_FLAG_NODEERRS)) {
+			fprintf(stderr, "cluster request failed: %s\n", strerror(errno));
+			return 0;
+		}
+
+	}
+
+	return 1;
+}
+
+/* Build the structure header and parse-out wildcard node names */
+static void _build_header(struct clvm_header *head, int cmd, const char *node,
+			  unsigned int len)
+{
+	head->cmd = cmd;
+	head->status = 0;
+	head->flags = 0;
+	head->xid = 0;
+	head->clientid = 0;
+	if (len)
+		/* 1 byte is used from struct clvm_header.args[1], so -> len - 1 */
+		head->arglen = len - 1;
+	else {
+		head->arglen = 0;
+		*head->args = '\0';
+	}
+
+	/*
+	 * Translate special node names.
+	 */
+	if (!node || !strcmp(node, NODE_ALL))
+		head->node[0] = '\0';
+	else if (!strcmp(node, NODE_LOCAL)) {
+		head->node[0] = '\0';
+		head->flags = CLVMD_FLAG_LOCAL;
+	} else
+		strcpy(head->node, node);
+}
+
+/*
+ * Send a message to a(or all) node(s) in the cluster and wait for replies
+ */
+static int _cluster_request(char cmd, const char *node, void *data, int len,
+			    lvm_response_t ** response, int *num, int no_response)
+{
+	char outbuf[sizeof(struct clvm_header) + len + strlen(node) + 1];
+	char *inptr;
+	char *retbuf = NULL;
+	int status;
+	int i;
+	int num_responses = 0;
+	struct clvm_header *head = (struct clvm_header *) outbuf;
+	lvm_response_t *rarray;
+
+	*num = 0;
+
+	if (_clvmd_sock == -1)
+		_clvmd_sock = _open_local_sock();
+
+	if (_clvmd_sock == -1)
+		return 0;
+
+	_build_header(head, cmd, node, len);
+	if (len)
+		memcpy(head->node + strlen(head->node) + 1, data, len);
+
+	status = _send_request(outbuf, sizeof(struct clvm_header) +
+			       strlen(head->node) + len, &retbuf, no_response);
+	if (!status || no_response)
+		goto out;
+
+	/* Count the number of responses we got */
+	head = (struct clvm_header *) retbuf;
+	inptr = head->args;
+	while (inptr[0]) {
+		num_responses++;
+		inptr += strlen(inptr) + 1;
+		inptr += sizeof(int);
+		inptr += strlen(inptr) + 1;
+	}
+
+	/*
+	 * Allocate response array.
+	 * With an extra pair of INTs on the front to sanity
+	 * check the pointer when we are given it back to free
+	 */
+	*response = NULL;
+	if (!(rarray = dm_malloc(sizeof(lvm_response_t) * num_responses +
+				 sizeof(int) * 2))) {
+		errno = ENOMEM;
+		status = 0;
+		goto out;
+	}
+
+	/* Unpack the response into an lvm_response_t array */
+	inptr = head->args;
+	i = 0;
+	while (inptr[0]) {
+		strcpy(rarray[i].node, inptr);
+		inptr += strlen(inptr) + 1;
+
+		memcpy(&rarray[i].status, inptr, sizeof(int));
+		inptr += sizeof(int);
+
+		rarray[i].response = dm_malloc(strlen(inptr) + 1);
+		if (rarray[i].response == NULL) {
+			/* Free up everything else and return error */
+			int j;
+			for (j = 0; j < i; j++)
+				dm_free(rarray[i].response);
+			dm_free(rarray);
+			errno = ENOMEM;
+			status = 0;
+			goto out;
+		}
+
+		strcpy(rarray[i].response, inptr);
+		rarray[i].len = strlen(inptr);
+		inptr += strlen(inptr) + 1;
+		i++;
+	}
+	*num = num_responses;
+	*response = rarray;
+
+      out:
+	dm_free(retbuf);
+
+	return status;
+}
+
+/* Free reply array */
+static int _cluster_free_request(lvm_response_t * response, int num)
+{
+	int i;
+
+	for (i = 0; i < num; i++) {
+		dm_free(response[i].response);
+	}
+
+	dm_free(response);
+
+	return 1;
+}
+
+int refresh_clvmd(int all_nodes)
+{
+	int num_responses;
+	char args[1]; // No args really.
+	lvm_response_t *response = NULL;
+	int saved_errno;
+	int status;
+	int i;
+
+	status = _cluster_request(CLVMD_CMD_REFRESH, all_nodes ? NODE_ALL : NODE_LOCAL, args, 0, &response, &num_responses, 0);
+
+	/* If any nodes were down then display them and return an error */
+	for (i = 0; i < num_responses; i++) {
+		if (response[i].status == EHOSTDOWN) {
+			fprintf(stderr, "clvmd not running on node %s",
+				  response[i].node);
+			status = 0;
+			errno = response[i].status;
+		} else if (response[i].status) {
+			fprintf(stderr, "Error resetting node %s: %s",
+				  response[i].node,
+				  response[i].response[0] ?
+				  	response[i].response :
+				  	strerror(response[i].status));
+			status = 0;
+			errno = response[i].status;
+		}
+	}
+
+	saved_errno = errno;
+	_cluster_free_request(response, num_responses);
+	errno = saved_errno;
+
+	return status;
+}
+
+int restart_clvmd(int all_nodes)
+{
+	int dummy, status;
+
+	status = _cluster_request(CLVMD_CMD_RESTART, all_nodes ? NODE_ALL : NODE_LOCAL, NULL, 0, NULL, &dummy, 1);
+
+	/*
+	 * FIXME: we cannot receive response, clvmd re-exec before it.
+	 *        but also should not close socket too early (the whole rq is dropped then).
+	 * FIXME: This should be handled this way:
+	 *  - client waits for RESTART ack (and socket close)
+	 *  - server restarts
+	 *  - client checks that server is ready again (VERSION command?)
+	 */
+	usleep(500000);
+
+	return status;
+}
+
+int debug_clvmd(int level, int clusterwide)
+{
+	int num_responses;
+	char args[1];
+	const char *nodes;
+	lvm_response_t *response = NULL;
+	int saved_errno;
+	int status;
+	int i;
+
+	args[0] = level;
+	if (clusterwide)
+		nodes = NODE_ALL;
+	else
+		nodes = NODE_LOCAL;
+
+	status = _cluster_request(CLVMD_CMD_SET_DEBUG, nodes, args, 1, &response, &num_responses, 0);
+
+	/* If any nodes were down then display them and return an error */
+	for (i = 0; i < num_responses; i++) {
+		if (response[i].status == EHOSTDOWN) {
+			fprintf(stderr, "clvmd not running on node %s",
+				  response[i].node);
+			status = 0;
+			errno = response[i].status;
+		} else if (response[i].status) {
+			fprintf(stderr, "Error setting debug on node %s: %s",
+				  response[i].node,
+				  response[i].response[0] ?
+				  	response[i].response :
+				  	strerror(response[i].status));
+			status = 0;
+			errno = response[i].status;
+		}
+	}
+
+	saved_errno = errno;
+	_cluster_free_request(response, num_responses);
+	errno = saved_errno;
+
+	return status;
+}

daemons/clvmd/refresh_clvmd.h

@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2007 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU General Public License v.2.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+
+int refresh_clvmd(int all_nodes);
+int restart_clvmd(int all_nodes);
+int debug_clvmd(int level, int clusterwide);
+

daemons/cmirrord/Makefile.in

@@ -17,27 +17,23 @@ top_builddir = @top_builddir@
 
 CPG_LIBS = @CPG_LIBS@
 CPG_CFLAGS = @CPG_CFLAGS@
+SACKPT_LIBS = @SACKPT_LIBS@
+SACKPT_CFLAGS = @SACKPT_CFLAGS@
 
 SOURCES = clogd.c cluster.c compat.c functions.c link_mon.c local.c logging.c
 
 TARGETS = cmirrord
 
-CFLOW_SOURCES = $(addprefix $(srcdir)/, $(SOURCES))
-CFLOW_TARGET := $(TARGETS)
-
 include $(top_builddir)/make.tmpl
 
-LMLIBS += $(CPG_LIBS)
+LIBS += -ldevmapper
-CFLAGS += $(CPG_CFLAGS) $(EXTRA_EXEC_CFLAGS)
+LMLIBS += $(CPG_LIBS) $(SACKPT_LIBS)
+CFLAGS += $(CPG_CFLAGS) $(SACKPT_CFLAGS) $(EXTRA_EXEC_CFLAGS)
 LDFLAGS += $(EXTRA_EXEC_LDFLAGS) $(ELDFLAGS)
 
-cmirrord: $(OBJECTS)
+cmirrord: $(OBJECTS) $(top_builddir)/lib/liblvm-internal.a
-	@echo "    [CC] $@"
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJECTS) \
-	$(Q) $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJECTS) \
+		$(LVMLIBS) $(LMLIBS) $(LIBS)
-		$(LMLIBS) -L$(top_builddir)/libdm -ldevmapper $(LIBS)
 
-install_cluster: $(TARGETS)
+install: $(TARGETS)
-	@echo "    [INSTALL] $<"
+	$(INSTALL_PROGRAM) -D cmirrord $(usrsbindir)/cmirrord
-	$(Q) $(INSTALL_PROGRAM) -D $< $(usrsbindir)/$(<F)
-
-install: install_cluster

daemons/cmirrord/clogd.c

@@ -245,7 +245,6 @@ static void daemonize(void)
 	}
 
 	LOG_OPEN("cmirrord", LOG_PID, LOG_DAEMON);
-	/* coverity[leaked_handle] devnull cannot leak here */
 }
 
 /*

daemons/cmirrord/cluster.c

@@ -16,11 +16,7 @@
 #include "functions.h"
 #include "link_mon.h"
 #include "local.h"
-#include "lib/mm/xlate.h"
+#include "xlate.h"
-#include "base/memory/zalloc.h"
-
-/* FIXME: remove this and the code */
-#define CMIRROR_HAS_CHECKPOINT 0
 
 #include <corosync/cpg.h>
 #include <errno.h>
@@ -108,7 +104,7 @@ static SaVersionT version = { 'B', 1, 1 };
 #endif
 
 #define DEBUGGING_HISTORY 100
-#define DEBUGGING_BUFLEN 270
+#define DEBUGGING_BUFLEN 128
 #define LOG_SPRINT(cc, f, arg...) do {				\
 		cc->idx++;					\
 		cc->idx = cc->idx % DEBUGGING_HISTORY;		\
@@ -403,12 +399,13 @@ static struct checkpoint_data *prepare_checkpoint(struct clog_cpg *entry,
 		return NULL;
 	}
 
-	new = zalloc(sizeof(*new));
+	new = malloc(sizeof(*new));
 	if (!new) {
 		LOG_ERROR("Unable to create checkpoint data for %u",
 			  cp_requester);
 		return NULL;
 	}
+	memset(new, 0, sizeof(*new));
 	new->requester = cp_requester;
 	strncpy(new->uuid, entry->name.value, entry->name.length);
 
@@ -643,12 +640,13 @@ static int export_checkpoint(struct checkpoint_data *cp)
 	rq_size += RECOVERING_REGION_SECTION_SIZE;
 	rq_size += cp->bitmap_size * 2; /* clean|sync_bits */
 
-	rq = zalloc(rq_size);
+	rq = malloc(rq_size);
 	if (!rq) {
 		LOG_ERROR("export_checkpoint: "
 			  "Unable to allocate transfer structs");
 		return -ENOMEM;
 	}
+	memset(rq, 0, rq_size);
 
 	dm_list_init(&rq->u.list);
 	rq->u_rq.request_type = DM_ULOG_CHECKPOINT_READY;
@@ -1383,7 +1381,7 @@ static void cpg_leave_callback(struct clog_cpg *match,
 			       size_t member_list_entries)
 {
 	unsigned i;
-	int j, fd = -1;
+	int j, fd;
 	uint32_t lowest = match->lowest_id;
 	struct clog_request *rq, *n;
 	struct checkpoint_data *p_cp, *c_cp;
@@ -1548,7 +1546,7 @@ static void cpg_config_callback(cpg_handle_t handle, const struct cpg_name *gnam
 				   member_list, member_list_entries);
 }
 
-static cpg_callbacks_t cpg_callbacks = {
+cpg_callbacks_t cpg_callbacks = {
 	.cpg_deliver_fn = cpg_message_callback,
 	.cpg_confchg_fn = cpg_config_callback,
 };
@@ -1620,11 +1618,12 @@ int create_cluster_cpg(char *uuid, uint64_t luid)
 			return -EEXIST;
 		}
 
-	new = zalloc(sizeof(*new));
+	new = malloc(sizeof(*new));
 	if (!new) {
 		LOG_ERROR("Unable to allocate memory for clog_cpg");
 		return -ENOMEM;
 	}
+	memset(new, 0, sizeof(*new));
 	dm_list_init(&new->list);
 	new->lowest_id = 0xDEAD;
 	dm_list_init(&new->startup_list);

daemons/cmirrord/cluster.h

@@ -12,8 +12,8 @@
 #ifndef _LVM_CLOG_CLUSTER_H
 #define _LVM_CLOG_CLUSTER_H
 
-#include "libdm/libdevmapper.h"
+#include "dm-log-userspace.h"
-#include "libdm/misc/dm-log-userspace.h"
+#include "libdevmapper.h"
 
 #define DM_ULOG_RESPONSE 0x1000U /* in last byte of 32-bit value */
 #define DM_ULOG_CHECKPOINT_READY 21
@@ -39,7 +39,7 @@ struct clog_request {
 	 * machine.  If the two are equal, there is no need
 	 * to do endian conversions.
 	 */
-	union version_u {
+	union {
 		uint64_t version[2]; /* LE version and native version */
 		struct dm_list list;
 	} u;

daemons/cmirrord/compat.c

@@ -8,7 +8,7 @@
 #include "logging.h"
 #include "cluster.h"
 #include "compat.h"
-#include "lib/mm/xlate.h"
+#include "xlate.h"
 
 #include <errno.h>
 

daemons/cmirrord/functions.c

@@ -11,7 +11,6 @@
  */
 #include "logging.h"
 #include "functions.h"
-#include "base/memory/zalloc.h"
 
 #include <sys/sysmacros.h>
 #include <dirent.h>
@@ -34,7 +33,7 @@
 #define LOG_OFFSET 2
 
 #define RESYNC_HISTORY 50
-#define RESYNC_BUFLEN 270
+#define RESYNC_BUFLEN 128
 //static char resync_history[RESYNC_HISTORY][128];
 //static int idx = 0;
 #define LOG_SPRINT(_lc, f, arg...) do {					\
@@ -378,7 +377,7 @@ static int _clog_ctr(char *uuid, uint64_t luid,
 	uint32_t block_on_error = 0;
 
 	int disk_log;
-	char disk_path[PATH_MAX] = { 0 };
+	char disk_path[PATH_MAX];
 	int unlink_path = 0;
 	long page_size;
 	int pages;
@@ -436,7 +435,7 @@ static int _clog_ctr(char *uuid, uint64_t luid,
 			block_on_error = 1;
 	}
 
-	lc = zalloc(sizeof(*lc));
+	lc = dm_zalloc(sizeof(*lc));
 	if (!lc) {
 		LOG_ERROR("Unable to allocate cluster log context");
 		r = -ENOMEM;
@@ -533,9 +532,9 @@ fail:
 			LOG_ERROR("Close device error, %s: %s",
 				  disk_path, strerror(errno));
 		free(lc->disk_buffer);
-		free(lc->sync_bits);
+		dm_free(lc->sync_bits);
-		free(lc->clean_bits);
+		dm_free(lc->clean_bits);
-		free(lc);
+		dm_free(lc);
 	}
 	return r;
 }
@@ -658,10 +657,11 @@ static int clog_dtr(struct dm_ulog_request *rq)
 	if (lc->disk_fd != -1 && close(lc->disk_fd))
 		LOG_ERROR("Failed to close disk log: %s",
 			  strerror(errno));
+	if (lc->disk_buffer)
 		free(lc->disk_buffer);
-	free(lc->clean_bits);
+	dm_free(lc->clean_bits);
-	free(lc->sync_bits);
+	dm_free(lc->sync_bits);
-	free(lc);
+	dm_free(lc);
 
 	return 0;
 }

daemons/cmirrord/functions.h

@@ -12,8 +12,7 @@
 #ifndef _LVM_CLOG_FUNCTIONS_H
 #define _LVM_CLOG_FUNCTIONS_H
 
-#include "libdm/libdevmapper.h"
+#include "dm-log-userspace.h"
-#include "libdm/misc/dm-log-userspace.h"
 #include "cluster.h"
 
 #define LOG_RESUMED   1

daemons/cmirrord/logging.h

@@ -13,6 +13,9 @@
 #ifndef _LVM_CLOG_LOGGING_H
 #define _LVM_CLOG_LOGGING_H
 
+#define _GNU_SOURCE
+
+#include "configure.h"
 #include <stdio.h>
 #include <stdint.h>
 #include <syslog.h>

daemons/dmeventd/Makefile.in

@@ -14,21 +14,11 @@
 srcdir = @srcdir@
 top_srcdir = @top_srcdir@
 top_builddir = @top_builddir@
-abs_srcdir = @abs_srcdir@
 
 SOURCES = libdevmapper-event.c
 SOURCES2 = dmeventd.c
 
 TARGETS = dmeventd
-CFLOW_SOURCES = $(addprefix $(srcdir)/, $(SOURCES) $(SOURCES2) \
-	plugins/lvm2/dmeventd_lvm.c \
-	plugins/mirror/dmeventd_mirror.c \
-	plugins/raid/dmeventd_raid.c \
-	plugins/snapshot/dmeventd_snapshot.c \
-	plugins/thin/dmeventd_thin.c \
-	plugins/vdo/dmeventd_vdo.c \
-	)
-CFLOW_TARGET := $(TARGETS)
 
 .PHONY: install_lib_dynamic install_lib_static install_include \
 	install_pkgconfig install_dmeventd_dynamic install_dmeventd_static \
@@ -47,7 +37,6 @@ endif
 
 LIB_VERSION = $(LIB_VERSION_DM)
 LIB_SHARED = $(LIB_NAME).$(LIB_SUFFIX)
-LIBS = $(PTHREAD_LIBS) -L$(interfacebuilddir) -ldevmapper
 
 CLEAN_TARGETS = dmeventd.static $(LIB_NAME).a
 
@@ -57,6 +46,7 @@ endif
 
 CFLOW_LIST = $(SOURCES)
 CFLOW_LIST_TARGET = $(LIB_NAME).cflow
+CFLOW_TARGET = dmeventd
 
 EXPORTED_HEADER = $(srcdir)/libdevmapper-event.h
 EXPORTED_FN_PREFIX = dm_event
@@ -65,47 +55,49 @@ include $(top_builddir)/make.tmpl
 
 all: device-mapper
 device-mapper: $(TARGETS)
-plugins.device-mapper: $(LIB_SHARED)
 
 CFLAGS_dmeventd.o += $(EXTRA_EXEC_CFLAGS)
+LIBS += -ldevmapper $(PTHREAD_LIBS)
 
 dmeventd: $(LIB_SHARED) dmeventd.o
-	@echo "    [CC] $@"
+	$(CC) $(CFLAGS) -L. $(LDFLAGS) $(EXTRA_EXEC_LDFLAGS) $(ELDFLAGS) dmeventd.o \
-	$(Q) $(CC) $(CFLAGS) $(LDFLAGS) $(EXTRA_EXEC_LDFLAGS) $(ELDFLAGS) dmeventd.o \
 		-o $@ $(DL_LIBS) $(DMEVENT_LIBS) $(LIBS)
 
-dmeventd.static: $(LIB_STATIC) dmeventd.o
+dmeventd.static: $(LIB_STATIC) dmeventd.o $(interfacebuilddir)/libdevmapper.a
-	@echo "    [CC] $@"
+	$(CC) $(CFLAGS) $(LDFLAGS) -static -L. -L$(interfacebuilddir) dmeventd.o \
-	$(Q) $(CC) $(CFLAGS) $(LDFLAGS) -static dmeventd.o \
 		-o $@ $(DL_LIBS) $(DMEVENT_LIBS) $(LIBS) $(STATIC_LIBS)
 
 ifeq ("@PKGCONFIG@", "yes")
   INSTALL_LIB_TARGETS += install_pkgconfig
 endif
 
+ifneq ("$(CFLOW_CMD)", "")
+CFLOW_SOURCES = $(addprefix $(srcdir)/, $(SOURCES))
+-include $(top_builddir)/libdm/libdevmapper.cflow
+-include $(top_builddir)/lib/liblvm-internal.cflow
+-include $(top_builddir)/lib/liblvm2cmd.cflow
+-include $(top_builddir)/daemons/dmeventd/$(LIB_NAME).cflow
+-include $(top_builddir)/daemons/dmeventd/plugins/mirror/$(LIB_NAME)-lvm2mirror.cflow
+endif
+
 install_include: $(srcdir)/libdevmapper-event.h
-	@echo "    [INSTALL] $(<F)"
+	$(INSTALL_DATA) -D $< $(includedir)/$(<F)
-	$(Q) $(INSTALL_DATA) -D $< $(includedir)/$(<F)
 
 install_pkgconfig: libdevmapper-event.pc
-	@echo "    [INSTALL] $<"
+	$(INSTALL_DATA) -D $< $(pkgconfigdir)/devmapper-event.pc
-	$(Q) $(INSTALL_DATA) -D $< $(pkgconfigdir)/devmapper-event.pc
 
 install_lib_dynamic: install_lib_shared
 
 install_lib_static: $(LIB_STATIC)
-	@echo "    [INSTALL] $<"
+	$(INSTALL_DATA) -D $< $(usrlibdir)/$(<F)
-	$(Q) $(INSTALL_DATA) -D $< $(usrlibdir)/$(<F)
 
 install_lib: $(INSTALL_LIB_TARGETS)
 
 install_dmeventd_dynamic: dmeventd
-	@echo "    [INSTALL] $<"
+	$(INSTALL_PROGRAM) -D $< $(sbindir)/$(<F)
-	$(Q) $(INSTALL_PROGRAM) -D $< $(sbindir)/$(<F)
 
 install_dmeventd_static: dmeventd.static
-	@echo "    [INSTALL] $<"
+	$(INSTALL_PROGRAM) -D $< $(staticdir)/$(<F)
-	$(Q) $(INSTALL_PROGRAM) -D $< $(staticdir)/$(<F)
 
 install_dmeventd: $(INSTALL_DMEVENTD_TARGETS)
 

daemons/dmeventd/dmeventd.c

@@ -16,12 +16,12 @@
  * dmeventd - dm event daemon to monitor active mapped devices
  */
 
+#include "dm-logging.h"
 
 #include "libdevmapper-event.h"
 #include "dmeventd.h"
 
-#include "libdm/misc/dm-logging.h"
+#include "tool.h"
-#include "base/memory/zalloc.h"
 
 #include <dlfcn.h>
 #include <pthread.h>
@@ -33,8 +33,6 @@
 #include <signal.h>
 #include <arpa/inet.h>		/* for htonl, ntohl */
 #include <fcntl.h>		/* for musl libc */
-#include <unistd.h>
-#include <syslog.h>
 
 #ifdef __linux__
 /*
@@ -62,6 +60,8 @@
 
 #endif
 
+#include <syslog.h>
+
 #define DM_SIGNALED_EXIT  1
 #define DM_SCHEDULED_EXIT 2
 static volatile sig_atomic_t _exit_now = 0;	/* set to '1' when signal is given to exit */
@@ -264,19 +264,19 @@ static pthread_cond_t _timeout_cond = PTHREAD_COND_INITIALIZER;
 /* DSO data allocate/free. */
 static void _free_dso_data(struct dso_data *data)
 {
-	free(data->dso_name);
+	dm_free(data->dso_name);
-	free(data);
+	dm_free(data);
 }
 
 static struct dso_data *_alloc_dso_data(struct message_data *data)
 {
-	struct dso_data *ret = (typeof(ret)) zalloc(sizeof(*ret));
+	struct dso_data *ret = (typeof(ret)) dm_zalloc(sizeof(*ret));
 
 	if (!ret)
 		return_NULL;
 
-	if (!(ret->dso_name = strdup(data->dso_name))) {
+	if (!(ret->dso_name = dm_strdup(data->dso_name))) {
-		free(ret);
+		dm_free(ret);
 		return_NULL;
 	}
 
@@ -397,9 +397,9 @@ static void _free_thread_status(struct thread_status *thread)
 	_lib_put(thread->dso_data);
 	if (thread->wait_task)
 		dm_task_destroy(thread->wait_task);
-	free(thread->device.uuid);
+	dm_free(thread->device.uuid);
-	free(thread->device.name);
+	dm_free(thread->device.name);
-	free(thread);
+	dm_free(thread);
 }
 
 /* Note: events_field must not be 0, ensured by caller */
@@ -408,7 +408,7 @@ static struct thread_status *_alloc_thread_status(const struct message_data *dat
 {
 	struct thread_status *thread;
 
-	if (!(thread = zalloc(sizeof(*thread)))) {
+	if (!(thread = dm_zalloc(sizeof(*thread)))) {
 		log_error("Cannot create new thread, out of memory.");
 		return NULL;
 	}
@@ -422,11 +422,11 @@ static struct thread_status *_alloc_thread_status(const struct message_data *dat
 	if (!dm_task_set_uuid(thread->wait_task, data->device_uuid))
 		goto_out;
 
-	if (!(thread->device.uuid = strdup(data->device_uuid)))
+	if (!(thread->device.uuid = dm_strdup(data->device_uuid)))
 		goto_out;
 
 	/* Until real name resolved, use UUID */
-	if (!(thread->device.name = strdup(data->device_uuid)))
+	if (!(thread->device.name = dm_strdup(data->device_uuid)))
 		goto_out;
 
 	/* runs ioctl and may register lvm2 pluging */
@@ -515,7 +515,7 @@ static int _fetch_string(char **ptr, char **src, const int delimiter)
 	if ((p = strchr(*src, delimiter))) {
 		if (*src < p) {
 			*p = 0; /* Temporary exit with \0 */
-			if (!(*ptr = strdup(*src))) {
+			if (!(*ptr = dm_strdup(*src))) {
 				log_error("Failed to fetch item %s.", *src);
 				ret = 0; /* Allocation fail */
 			}
@@ -525,7 +525,7 @@ static int _fetch_string(char **ptr, char **src, const int delimiter)
 		(*src)++; /* Skip delmiter, next field */
 	} else if ((len = strlen(*src))) {
 		/* No delimiter, item ends with '\0' */
-		if (!(*ptr = strdup(*src))) {
+		if (!(*ptr = dm_strdup(*src))) {
 			log_error("Failed to fetch last item %s.", *src);
 			ret = 0; /* Fail */
 		}
@@ -538,11 +538,11 @@ out:
 /* Free message memory. */
 static void _free_message(struct message_data *message_data)
 {
-	free(message_data->id);
+	dm_free(message_data->id);
-	free(message_data->dso_name);
+	dm_free(message_data->dso_name);
-	free(message_data->device_uuid);
+	dm_free(message_data->device_uuid);
-	free(message_data->events_str);
+	dm_free(message_data->events_str);
-	free(message_data->timeout_str);
+	dm_free(message_data->timeout_str);
 }
 
 /* Parse a register message from the client. */
@@ -574,7 +574,7 @@ static int _parse_message(struct message_data *message_data)
 		ret = 1;
 	}
 
-	free(msg->data);
+	dm_free(msg->data);
 	msg->data = NULL;
 
 	return ret;
@@ -608,8 +608,8 @@ static int _fill_device_data(struct thread_status *ts)
 	if (!dm_task_run(dmt))
 		goto fail;
 
-	free(ts->device.name);
+	dm_free(ts->device.name);
-	if (!(ts->device.name = strdup(dm_task_get_name(dmt))))
+	if (!(ts->device.name = dm_strdup(dm_task_get_name(dmt))))
 		goto fail;
 
 	if (!dm_task_get_info(dmt, &dmi))
@@ -678,9 +678,6 @@ static int _get_status(struct message_data *message_data)
 	char **buffers;
 	char *message;
 
-	if (!message_data->id)
-		return -EINVAL;
-
 	_lock_mutex();
 	count = dm_list_size(&_thread_registry);
 	buffers = alloca(sizeof(char*) * count);
@@ -699,8 +696,8 @@ static int _get_status(struct message_data *message_data)
 
 	len = strlen(message_data->id);
 	msg->size = size + len + 1;
-	free(msg->data);
+	dm_free(msg->data);
-	if (!(msg->data = malloc(msg->size)))
+	if (!(msg->data = dm_malloc(msg->size)))
 		goto out;
 
 	memcpy(msg->data, message_data->id, len);
@@ -715,7 +712,7 @@ static int _get_status(struct message_data *message_data)
 	ret = 0;
  out:
 	for (j = 0; j < i; ++j)
-		free(buffers[j]);
+		dm_free(buffers[j]);
 
 	return ret;
 }
@@ -724,7 +721,7 @@ static int _get_parameters(struct message_data *message_data) {
 	struct dm_event_daemon_message *msg = message_data->msg;
 	int size;
 
-	free(msg->data);
+	dm_free(msg->data);
 	if ((size = dm_asprintf(&msg->data, "%s pid=%d daemon=%s exec_method=%s",
 				message_data->id, getpid(),
 				_foreground ? "no" : "yes",
@@ -1075,7 +1072,6 @@ out:
 	 * "label at end of compound statement" */
 	;
 
-	/* coverity[lock_order] _global_mutex is kept locked */
 	pthread_cleanup_pop(1);
 
 	return NULL;
@@ -1238,7 +1234,7 @@ static int _registered_device(struct message_data *message_data,
 	int r;
 	struct dm_event_daemon_message *msg = message_data->msg;
 
-	free(msg->data);
+	dm_free(msg->data);
 
 	if ((r = dm_asprintf(&(msg->data), "%s %s %s %u",
 			     message_data->id,
@@ -1378,7 +1374,7 @@ static int _get_timeout(struct message_data *message_data)
 	if (!thread)
 		return -ENODEV;
 
-	free(msg->data);
+	dm_free(msg->data);
 	msg->size = dm_asprintf(&(msg->data), "%s %" PRIu32,
 				message_data->id, thread->timeout);
 
@@ -1498,34 +1494,37 @@ static int _client_read(struct dm_event_fifos *fifos,
 		t.tv_usec = 0;
 		ret = select(fifos->client + 1, &fds, NULL, NULL, &t);
 
-		if (!ret && bytes)
+		if (!ret && !bytes)	/* nothing to read */
-			continue; /* trying to finish read */
+			return 0;
 
-		if (ret <= 0)	/* nothing to read */
+		if (!ret)	/* trying to finish read */
-			goto bad;
+			continue;
+
+		if (ret < 0)	/* error */
+			return 0;
 
 		ret = read(fifos->client, buf + bytes, size - bytes);
 		bytes += ret > 0 ? ret : 0;
-		if (!msg->data && (bytes == 2 * sizeof(uint32_t))) {
+		if (header && (bytes == 2 * sizeof(uint32_t))) {
 			msg->cmd = ntohl(header[0]);
+			size = msg->size = ntohl(header[1]);
 			bytes = 0;
-
+			if (!size)
-			if (!(size = msg->size = ntohl(header[1])))
+				break; /* No data -> error */
-				break;
+			buf = msg->data = dm_malloc(msg->size);
-
+			if (!buf)
-			if (!(buf = msg->data = malloc(msg->size)))
+				break; /* No mem -> error */
-				goto bad;
+			header = 0;
 		}
 	}
 
-	if (bytes == size)
+	if (bytes != size) {
-		return 1;
+		dm_free(msg->data);
-
-bad:
-	free(msg->data);
 		msg->data = NULL;
-
 		return 0;
+	}
+
+	return 1;
 }
 
 /*
@@ -1540,7 +1539,7 @@ static int _client_write(struct dm_event_fifos *fifos,
 	fd_set fds;
 
 	size_t size = 2 * sizeof(uint32_t) + ((msg->data) ? msg->size : 0);
-	uint32_t *header = malloc(size);
+	uint32_t *header = dm_malloc(size);
 	char *buf = (char *)header;
 
 	if (!header) {
@@ -1570,7 +1569,7 @@ static int _client_write(struct dm_event_fifos *fifos,
 	}
 
 	if (header != temp)
-		free(header);
+		dm_free(header);
 
 	return (bytes == size);
 }
@@ -1632,7 +1631,7 @@ static int _do_process_request(struct dm_event_daemon_message *msg)
 			msg->size = dm_asprintf(&(msg->data), "%s %s %d", answer,
 						(msg->cmd == DM_EVENT_CMD_DIE) ? "DYING" : "HELLO",
 						DM_EVENT_PROTOCOL_VERSION);
-			free(answer);
+			dm_free(answer);
 		}
 	} else if (msg->cmd != DM_EVENT_CMD_ACTIVE && !_parse_message(&message_data)) {
 		stack;
@@ -1674,7 +1673,7 @@ static void _process_request(struct dm_event_fifos *fifos)
 
 	DEBUGLOG("<<< CMD:%s (0x%x) completed (result %d).", decode_cmd(cmd), cmd, msg.cmd);
 
-	free(msg.data);
+	dm_free(msg.data);
 
 	if (cmd == DM_EVENT_CMD_DIE) {
 		if (unlink(DMEVENTD_PIDFILE))
@@ -1746,8 +1745,7 @@ static void _init_thread_signals(void)
 	sigset_t my_sigset;
 	struct sigaction act = { .sa_handler = _sig_alarm };
 
-	if (sigaction(SIGALRM, &act, NULL))
+	sigaction(SIGALRM, &act, NULL);
-		log_sys_debug("sigaction", "SIGLARM");
 	sigfillset(&my_sigset);
 
 	/* These are used for exiting */
@@ -1756,8 +1754,7 @@ static void _init_thread_signals(void)
 	sigdelset(&my_sigset, SIGHUP);
 	sigdelset(&my_sigset, SIGQUIT);
 
-	if (pthread_sigmask(SIG_BLOCK, &my_sigset, NULL))
+	pthread_sigmask(SIG_BLOCK, &my_sigset, NULL);
-		log_sys_error("pthread_sigmask", "SIG_BLOCK");
 }
 
 /*
@@ -1987,7 +1984,7 @@ static int _reinstate_registrations(struct dm_event_fifos *fifos)
 	int i, ret;
 
 	ret = daemon_talk(fifos, &msg, DM_EVENT_CMD_HELLO, NULL, NULL, 0, 0);
-	free(msg.data);
+	dm_free(msg.data);
 	msg.data = NULL;
 
 	if (ret) {
@@ -2073,18 +2070,19 @@ static void _restart_dmeventd(void)
 			++count;
 		}
 
-	if (!(_initial_registrations = zalloc(sizeof(char*) * (count + 1)))) {
+	if (!(_initial_registrations = dm_malloc(sizeof(char*) * (count + 1)))) {
 		fprintf(stderr, "Memory allocation registration failed.\n");
 		goto bad;
 	}
 
 	for (i = 0; i < count; ++i) {
-		if (!(_initial_registrations[i] = strdup(message))) {
+		if (!(_initial_registrations[i] = dm_strdup(message))) {
 			fprintf(stderr, "Memory allocation for message failed.\n");
 			goto bad;
 		}
 		message += strlen(message) + 1;
 	}
+	_initial_registrations[count] = NULL;
 
 	if (version >= 2) {
 		if (daemon_talk(&fifos, &msg, DM_EVENT_CMD_GET_PARAMETERS, "-", "-", 0, 0)) {
@@ -2247,8 +2245,7 @@ int main(int argc, char *argv[])
 
 	_init_thread_signals();
 
-	if (pthread_mutex_init(&_global_mutex, NULL))
+	pthread_mutex_init(&_global_mutex, NULL);
-		exit(EXIT_FAILURE);
 
 	if (!_systemd_activation && !_open_fifos(&fifos))
 		exit(EXIT_FIFO_FAILURE);

daemons/dmeventd/libdevmapper-event.c

@@ -12,12 +12,10 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include "dm-logging.h"
+#include "dmlib.h"
 #include "libdevmapper-event.h"
 #include "dmeventd.h"
-#include "libdm/misc/dm-logging.h"
-#include "base/memory/zalloc.h"
-
-#include "lib/misc/intl.h"
 
 #include <fcntl.h>
 #include <sys/file.h>
@@ -27,7 +25,6 @@
 #include <arpa/inet.h>		/* for htonl, ntohl */
 #include <pthread.h>
 #include <syslog.h>
-#include <unistd.h>
 
 static int _debug_level = 0;
 static int _use_syslog = 0;
@@ -50,8 +47,8 @@ struct dm_event_handler {
 
 static void _dm_event_handler_clear_dev_info(struct dm_event_handler *dmevh)
 {
-	free(dmevh->dev_name);
+	dm_free(dmevh->dev_name);
-	free(dmevh->uuid);
+	dm_free(dmevh->uuid);
 	dmevh->dev_name = dmevh->uuid = NULL;
 	dmevh->major = dmevh->minor = 0;
 }
@@ -60,7 +57,7 @@ struct dm_event_handler *dm_event_handler_create(void)
 {
 	struct dm_event_handler *dmevh;
 
-	if (!(dmevh = zalloc(sizeof(*dmevh)))) {
+	if (!(dmevh = dm_zalloc(sizeof(*dmevh)))) {
 		log_error("Failed to allocate event handler.");
 		return NULL;
 	}
@@ -71,9 +68,9 @@ struct dm_event_handler *dm_event_handler_create(void)
 void dm_event_handler_destroy(struct dm_event_handler *dmevh)
 {
 	_dm_event_handler_clear_dev_info(dmevh);
-	free(dmevh->dso);
+	dm_free(dmevh->dso);
-	free(dmevh->dmeventd_path);
+	dm_free(dmevh->dmeventd_path);
-	free(dmevh);
+	dm_free(dmevh);
 }
 
 int dm_event_handler_set_dmeventd_path(struct dm_event_handler *dmevh, const char *dmeventd_path)
@@ -81,9 +78,9 @@ int dm_event_handler_set_dmeventd_path(struct dm_event_handler *dmevh, const cha
 	if (!dmeventd_path) /* noop */
 		return 0;
 
-	free(dmevh->dmeventd_path);
+	dm_free(dmevh->dmeventd_path);
 
-	if (!(dmevh->dmeventd_path = strdup(dmeventd_path)))
+	if (!(dmevh->dmeventd_path = dm_strdup(dmeventd_path)))
 		return -ENOMEM;
 
 	return 0;
@@ -94,9 +91,9 @@ int dm_event_handler_set_dso(struct dm_event_handler *dmevh, const char *path)
 	if (!path) /* noop */
 		return 0;
 
-	free(dmevh->dso);
+	dm_free(dmevh->dso);
 
-	if (!(dmevh->dso = strdup(path)))
+	if (!(dmevh->dso = dm_strdup(path)))
 		return -ENOMEM;
 
 	return 0;
@@ -109,7 +106,7 @@ int dm_event_handler_set_dev_name(struct dm_event_handler *dmevh, const char *de
 
 	_dm_event_handler_clear_dev_info(dmevh);
 
-	if (!(dmevh->dev_name = strdup(dev_name)))
+	if (!(dmevh->dev_name = dm_strdup(dev_name)))
 		return -ENOMEM;
 
 	return 0;
@@ -122,7 +119,7 @@ int dm_event_handler_set_uuid(struct dm_event_handler *dmevh, const char *uuid)
 
 	_dm_event_handler_clear_dev_info(dmevh);
 
-	if (!(dmevh->uuid = strdup(uuid)))
+	if (!(dmevh->uuid = dm_strdup(uuid)))
 		return -ENOMEM;
 
 	return 0;
@@ -237,16 +234,16 @@ static int _daemon_read(struct dm_event_fifos *fifos,
 			ret = select(fifos->server + 1, &fds, NULL, NULL, &tval);
 			if (ret < 0 && errno != EINTR) {
 				log_error("Unable to read from event server.");
-				goto bad;
+				return 0;
 			}
 			if ((ret == 0) && (i > 4) && !bytes) {
 				log_error("No input from event server.");
-				goto bad;
+				return 0;
 			}
 		}
 		if (ret < 1) {
 			log_error("Unable to read from event server.");
-			goto bad;
+			return 0;
 		}
 
 		ret = read(fifos->server, buf + bytes, size);
@@ -255,32 +252,25 @@ static int _daemon_read(struct dm_event_fifos *fifos,
 				continue;
 
 			log_error("Unable to read from event server.");
-			goto bad;
+			return 0;
 		}
 
 		bytes += ret;
-		if (!msg->data && (bytes == 2 * sizeof(uint32_t))) {
+		if (header && (bytes == 2 * sizeof(uint32_t))) {
 			msg->cmd = ntohl(header[0]);
+			msg->size = ntohl(header[1]);
+			buf = msg->data = dm_malloc(msg->size);
+			size = msg->size;
 			bytes = 0;
-
+			header = 0;
-			if (!(size = msg->size = ntohl(header[1])))
-				break;
-
-			if (!(buf = msg->data = malloc(msg->size))) {
-				log_error("Unable to allocate message data.");
-				return 0;
-			}
 		}
 	}
 
-	if (bytes == size)
+	if (bytes != size) {
-		return 1;
+		dm_free(msg->data);
-
-bad:
-	free(msg->data);
 		msg->data = NULL;
-
+	}
-	return 0;
+	return bytes == size;
 }
 
 /* Write message to daemon. */
@@ -380,13 +370,13 @@ int daemon_talk(struct dm_event_fifos *fifos,
 	 */
 	if (!_daemon_write(fifos, msg)) {
 		stack;
-		free(msg->data);
+		dm_free(msg->data);
 		msg->data = NULL;
 		return -EIO;
 	}
 
 	do {
-		free(msg->data);
+		dm_free(msg->data);
 		msg->data = NULL;
 
 		if (!_daemon_read(fifos, msg)) {
@@ -629,7 +619,7 @@ static int _do_event(int cmd, char *dmeventd_path, struct dm_event_daemon_messag
 
 	ret = daemon_talk(&fifos, msg, DM_EVENT_CMD_HELLO, NULL, NULL, 0, 0);
 
-	free(msg->data);
+	dm_free(msg->data);
 	msg->data = 0;
 
 	if (!ret)
@@ -670,7 +660,7 @@ int dm_event_register_handler(const struct dm_event_handler *dmevh)
 		ret = 0;
 	}
 
-	free(msg.data);
+	dm_free(msg.data);
 
 	dm_task_destroy(dmt);
 
@@ -697,7 +687,7 @@ int dm_event_unregister_handler(const struct dm_event_handler *dmevh)
 		ret = 0;
 	}
 
-	free(msg.data);
+	dm_free(msg.data);
 
 	dm_task_destroy(dmt);
 
@@ -709,11 +699,15 @@ int dm_event_unregister_handler(const struct dm_event_handler *dmevh)
 static char *_fetch_string(char **src, const int delimiter)
 {
 	char *p, *ret;
-	size_t len = (p = strchr(*src, delimiter)) ?
-		(size_t)(p - *src) : strlen(*src);
 
-	if ((ret = strndup(*src, len)))
+	if ((p = strchr(*src, delimiter)))
-		*src += len + 1;
+		*p = 0;
+
+	if ((ret = dm_strdup(*src)))
+		*src += strlen(ret) + 1;
+
+	if (p)
+		*p = delimiter;
 
 	return ret;
 }
@@ -729,11 +723,11 @@ static int _parse_message(struct dm_event_daemon_message *msg, char **dso_name,
 	    (*dso_name = _fetch_string(&p, ' ')) &&
 	    (*uuid = _fetch_string(&p, ' '))) {
 		*evmask = atoi(p);
-		free(id);
+		dm_free(id);
 		return 0;
 	}
 
-	free(id);
+	dm_free(id);
 	return -ENOMEM;
 }
 
@@ -775,7 +769,7 @@ int dm_event_get_registered_device(struct dm_event_handler *dmevh, int next)
 	dm_task_destroy(dmt);
 	dmt = NULL;
 
-	free(msg.data);
+	dm_free(msg.data);
 	msg.data = NULL;
 
 	_dm_event_handler_clear_dev_info(dmevh);
@@ -784,7 +778,7 @@ int dm_event_get_registered_device(struct dm_event_handler *dmevh, int next)
 		goto fail;
 	}
 
-	if (!(dmevh->uuid = strdup(reply_uuid))) {
+	if (!(dmevh->uuid = dm_strdup(reply_uuid))) {
 		ret = -ENOMEM;
 		goto fail;
 	}
@@ -797,13 +791,13 @@ int dm_event_get_registered_device(struct dm_event_handler *dmevh, int next)
 	dm_event_handler_set_dso(dmevh, reply_dso);
 	dm_event_handler_set_event_mask(dmevh, reply_mask);
 
-	free(reply_dso);
+	dm_free(reply_dso);
 	reply_dso = NULL;
 
-	free(reply_uuid);
+	dm_free(reply_uuid);
 	reply_uuid = NULL;
 
-	if (!(dmevh->dev_name = strdup(dm_task_get_name(dmt)))) {
+	if (!(dmevh->dev_name = dm_strdup(dm_task_get_name(dmt)))) {
 		ret = -ENOMEM;
 		goto fail;
 	}
@@ -821,9 +815,9 @@ int dm_event_get_registered_device(struct dm_event_handler *dmevh, int next)
 	return ret;
 
  fail:
-	free(msg.data);
+	dm_free(msg.data);
-	free(reply_dso);
+	dm_free(reply_dso);
-	free(reply_uuid);
+	dm_free(reply_uuid);
 	_dm_event_handler_clear_dev_info(dmevh);
 	if (dmt)
 		dm_task_destroy(dmt);
@@ -988,12 +982,12 @@ int dm_event_get_timeout(const char *device_path, uint32_t *timeout)
 		if (!p) {
 			log_error("Malformed reply from dmeventd '%s'.",
 				  msg.data);
-			free(msg.data);
+			dm_free(msg.data);
 			return -EIO;
 		}
 		*timeout = atoi(p);
 	}
-	free(msg.data);
+	dm_free(msg.data);
 
 	return ret;
 }

daemons/dmeventd/libdevmapper-event.h

@@ -21,7 +21,6 @@
 #ifndef LIB_DMEVENT_H
 #define LIB_DMEVENT_H
 
-#include <stdarg.h>
 #include <stdint.h>
 
 /*

daemons/dmeventd/libdevmapper-event.pc.in

@@ -8,3 +8,4 @@ Description: device-mapper event library
 Version: @DM_LIB_PATCHLEVEL@
 Cflags: -I${includedir}
 Libs: -L${libdir} -ldevmapper-event
+Requires.private: devmapper

daemons/dmeventd/plugins/lvm2/Makefile.in

@@ -16,7 +16,6 @@ top_srcdir = @top_srcdir@
 top_builddir = @top_builddir@
 
 CLDFLAGS += -L$(top_builddir)/tools
-LIBS += $(DMEVENT_LIBS) $(PTHREAD_LIBS) @LVM2CMD_LIB@
 
 SOURCES = dmeventd_lvm.c
 
@@ -25,6 +24,8 @@ LIB_VERSION = $(LIB_VERSION_LVM)
 
 include $(top_builddir)/make.tmpl
 
+LIBS += @LVM2CMD_LIB@ -ldevmapper $(PTHREAD_LIBS)
+
 install_lvm2: install_lib_shared
 
 install: install_lvm2

daemons/dmeventd/plugins/lvm2/dmeventd_lvm.c

@@ -12,10 +12,10 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include "lib/misc/lib.h"
+#include "lib.h"
 #include "dmeventd_lvm.h"
-#include "daemons/dmeventd/libdevmapper-event.h"
+#include "libdevmapper-event.h"
-#include "tools/lvm2cmd.h"
+#include "lvm2cmd.h"
 
 #include <pthread.h>
 

daemons/dmeventd/plugins/mirror/Makefile.in

@@ -16,8 +16,8 @@ srcdir = @srcdir@
 top_srcdir = @top_srcdir@
 top_builddir = @top_builddir@
 
+INCLUDES += -I$(top_srcdir)/daemons/dmeventd/plugins/lvm2
 CLDFLAGS += -L$(top_builddir)/daemons/dmeventd/plugins/lvm2
-LIBS += -ldevmapper-event-lvm2
 
 SOURCES = dmeventd_mirror.c
 
@@ -25,8 +25,13 @@ LIB_NAME = libdevmapper-event-lvm2mirror
 LIB_SHARED = $(LIB_NAME).$(LIB_SUFFIX)
 LIB_VERSION = $(LIB_VERSION_LVM)
 
+CFLOW_LIST = $(SOURCES)
+CFLOW_LIST_TARGET = $(LIB_NAME).cflow
+
 include $(top_builddir)/make.tmpl
 
+LIBS += -ldevmapper-event-lvm2 -ldevmapper
+
 install_lvm2: install_dm_plugin
 
 install: install_lvm2

daemons/dmeventd/plugins/mirror/dmeventd_mirror.c

@@ -12,10 +12,10 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include "lib/misc/lib.h"
+#include "lib.h"
-#include "daemons/dmeventd/plugins/lvm2/dmeventd_lvm.h"
+#include "libdevmapper-event.h"
-#include "daemons/dmeventd/libdevmapper-event.h"
+#include "dmeventd_lvm.h"
-#include "lib/activate/activate.h"
+#include "activate.h"	/* For TARGET_NAME* */
 
 /* FIXME Reformat to 80 char lines. */
 

daemons/dmeventd/plugins/raid/Makefile.in

@@ -15,8 +15,8 @@ srcdir = @srcdir@
 top_srcdir = @top_srcdir@
 top_builddir = @top_builddir@
 
+INCLUDES += -I$(top_srcdir)/daemons/dmeventd/plugins/lvm2
 CLDFLAGS += -L$(top_builddir)/daemons/dmeventd/plugins/lvm2
-LIBS += -ldevmapper-event-lvm2
 
 SOURCES = dmeventd_raid.c
 
@@ -24,8 +24,13 @@ LIB_NAME = libdevmapper-event-lvm2raid
 LIB_SHARED = $(LIB_NAME).$(LIB_SUFFIX)
 LIB_VERSION = $(LIB_VERSION_LVM)
 
+CFLOW_LIST = $(SOURCES)
+CFLOW_LIST_TARGET = $(LIB_NAME).cflow
+
 include $(top_builddir)/make.tmpl
 
+LIBS += -ldevmapper-event-lvm2 -ldevmapper
+
 install_lvm2: install_dm_plugin
 
 install: install_lvm2

daemons/dmeventd/plugins/raid/dmeventd_raid.c

@@ -12,10 +12,10 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include "lib/misc/lib.h"
+#include "lib.h"
-#include "daemons/dmeventd/plugins/lvm2/dmeventd_lvm.h"
+#include "defaults.h"
-#include "daemons/dmeventd/libdevmapper-event.h"
+#include "dmeventd_lvm.h"
-#include "lib/config/defaults.h"
+#include "libdevmapper-event.h"
 
 /* Hold enough elements for the mximum number of RAID images */
 #define	RAID_DEVS_ELEMS	((DEFAULT_RAID_MAX_IMAGES + 63) / 64)
@@ -77,7 +77,7 @@ static int _process_raid_event(struct dso_state *state, char *params, const char
 
 	if (dead) {
 		/*
-		 * Use the first event to run a repair ignoring any additional ones.
+		 * Use the first event to run a repair ignoring any additonal ones.
 		 *
 		 * We presume lvconvert to do pre-repair
 		 * checks to avoid bloat in this plugin.

daemons/dmeventd/plugins/snapshot/Makefile.in

@@ -16,8 +16,8 @@ srcdir = @srcdir@
 top_srcdir = @top_srcdir@
 top_builddir = @top_builddir@
 
+INCLUDES += -I$(top_srcdir)/daemons/dmeventd/plugins/lvm2
 CLDFLAGS += -L$(top_builddir)/daemons/dmeventd/plugins/lvm2
-LIBS += -ldevmapper-event-lvm2
 
 SOURCES = dmeventd_snapshot.c
 
@@ -26,6 +26,8 @@ LIB_VERSION = $(LIB_VERSION_LVM)
 
 include $(top_builddir)/make.tmpl
 
+LIBS += -ldevmapper-event-lvm2 -ldevmapper
+
 install_lvm2: install_dm_plugin
 
 install: install_lvm2

daemons/dmeventd/plugins/snapshot/dmeventd_snapshot.c

@@ -12,9 +12,9 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include "lib/misc/lib.h"
+#include "lib.h"
-#include "daemons/dmeventd/plugins/lvm2/dmeventd_lvm.h"
+#include "dmeventd_lvm.h"
-#include "daemons/dmeventd/libdevmapper-event.h"
+#include "libdevmapper-event.h"
 
 #include <sys/sysmacros.h>
 #include <sys/wait.h>
@@ -175,7 +175,6 @@ void process_event(struct dm_task *dmt,
 	const char *device = dm_task_get_name(dmt);
 	int percent;
 	struct dm_info info;
-	int ret;
 
 	/* No longer monitoring, waiting for remove */
 	if (!state->percent_check)
@@ -206,8 +205,7 @@ void process_event(struct dm_task *dmt,
 		/* Maybe configurable ? */
 		_remove(dm_task_get_uuid(dmt));
 #endif
-		if ((ret = pthread_kill(pthread_self(), SIGALRM)) && (ret != ESRCH))
+		pthread_kill(pthread_self(), SIGALRM);
-			log_sys_error("pthread_kill", "self");
 		goto out;
 	}
 
@@ -215,8 +213,7 @@ void process_event(struct dm_task *dmt,
 		/* TODO eventually recognize earlier when room is enough */
 		log_info("Dropping monitoring of fully provisioned snapshot %s.",
 			 device);
-		if ((ret = pthread_kill(pthread_self(), SIGALRM)) && (ret != ESRCH))
+		pthread_kill(pthread_self(), SIGALRM);
-			log_sys_error("pthread_kill", "self");
 		goto out;
 	}
 

daemons/dmeventd/plugins/thin/Makefile.in

@@ -15,8 +15,8 @@ srcdir = @srcdir@
 top_srcdir = @top_srcdir@
 top_builddir = @top_builddir@
 
+INCLUDES += -I$(top_srcdir)/daemons/dmeventd/plugins/lvm2
 CLDFLAGS += -L$(top_builddir)/daemons/dmeventd/plugins/lvm2
-LIBS += -ldevmapper-event-lvm2
 
 SOURCES = dmeventd_thin.c
 
@@ -24,8 +24,13 @@ LIB_NAME = libdevmapper-event-lvm2thin
 LIB_SHARED = $(LIB_NAME).$(LIB_SUFFIX)
 LIB_VERSION = $(LIB_VERSION_LVM)
 
+CFLOW_LIST = $(SOURCES)
+CFLOW_LIST_TARGET = $(LIB_NAME).cflow
+
 include $(top_builddir)/make.tmpl
 
+LIBS += -ldevmapper-event-lvm2 -ldevmapper
+
 install_lvm2: install_dm_plugin
 
 install: install_lvm2

daemons/dmeventd/plugins/thin/dmeventd_thin.c

@@ -12,16 +12,16 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include "lib/misc/lib.h"
+#include "lib.h"	/* using here lvm log */
-#include "daemons/dmeventd/plugins/lvm2/dmeventd_lvm.h"
+#include "dmeventd_lvm.h"
-#include "daemons/dmeventd/libdevmapper-event.h"
+#include "libdevmapper-event.h"
 
 #include <sys/wait.h>
 #include <stdarg.h>
 
 /* TODO - move this mountinfo code into library to be reusable */
 #ifdef __linux__
-#  include "libdm/misc/kdev_t.h"
+#  include "kdev_t.h"
 #else
 #  define MAJOR(x) major((x))
 #  define MINOR(x) minor((x))

daemons/dmeventd/plugins/vdo/Makefile.in

@@ -15,8 +15,8 @@ srcdir = @srcdir@
 top_srcdir = @top_srcdir@
 top_builddir = @top_builddir@
 
+INCLUDES += -I$(top_srcdir)/daemons/dmeventd/plugins/lvm2
 CLDFLAGS += -L$(top_builddir)/daemons/dmeventd/plugins/lvm2
-LIBS += -ldevmapper-event-lvm2
 
 SOURCES = dmeventd_vdo.c
 
@@ -24,8 +24,13 @@ LIB_NAME = libdevmapper-event-lvm2vdo
 LIB_SHARED = $(LIB_NAME).$(LIB_SUFFIX)
 LIB_VERSION = $(LIB_VERSION_LVM)
 
+CFLOW_LIST = $(SOURCES)
+CFLOW_LIST_TARGET = $(LIB_NAME).cflow
+
 include $(top_builddir)/make.tmpl
 
+LIBS += -ldevmapper-event-lvm2 $(INTERNAL_LIBS)
+
 install_lvm2: install_dm_plugin
 
 install: install_lvm2

daemons/dmeventd/plugins/vdo/dmeventd_vdo.c

@@ -12,18 +12,9 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include "lib/misc/lib.h"
+#include "lib.h"
-#include "daemons/dmeventd/plugins/lvm2/dmeventd_lvm.h"
+#include "dmeventd_lvm.h"
-#include "daemons/dmeventd/libdevmapper-event.h"
+#include "libdevmapper-event.h"
-
-/*
- * Use parser from new device_mapper library.
- * Although during compilation we can see dm_vdo_status_parse()
- * in runtime we are linked agains systems libdm 'older' library
- * which does not provide this symbol and plugin fails to load
- */
-/* coverity[unnecessary_header] used for parsing */
-#include "device_mapper/vdo/status.c"
 
 #include <sys/wait.h>
 #include <stdarg.h>
@@ -54,6 +45,23 @@ struct dso_state {
 	const char *name;
 };
 
+struct vdo_status {
+	uint64_t used_blocks;
+	uint64_t total_blocks;
+};
+
+static int _vdo_status_parse(const char *params, struct vdo_status *status)
+{
+	if (sscanf(params, "%*s %*s %*s %*s %*s %" PRIu64 " %" PRIu64,
+		   &status->used_blocks,
+		   &status->total_blocks) < 2) {
+		log_error("Failed to parse vdo params: %s.", params);
+		return 0;
+	}
+
+	return 1;
+}
+
 DM_EVENT_LOG_FN("vdo")
 
 static int _run_command(struct dso_state *state)
@@ -157,7 +165,7 @@ void process_event(struct dm_task *dmt,
 	char *params;
 	int needs_policy = 0;
 	struct dm_task *new_dmt = NULL;
-	struct dm_vdo_status_parse_result vdop = { .status = NULL };
+	struct vdo_status status;
 
 #if VDO_DEBUG
 	log_debug("Watch for VDO %s:%.2f%%.", state->name,
@@ -203,24 +211,24 @@ void process_event(struct dm_task *dmt,
 		goto out;
 	}
 
-	if (!dm_vdo_status_parse(state->mem, params, &vdop)) {
+	if (!_vdo_status_parse(params, &status)) {
 		log_error("Failed to parse status.");
 		goto out;
 	}
 
-	state->percent = dm_make_percent(vdop.status->used_blocks,
+	state->percent = dm_make_percent(status.used_blocks,
-					 vdop.status->total_blocks);
+					 status.total_blocks);
 
 #if VDO_DEBUG
 	log_debug("VDO %s status  %.2f%% " FMTu64 "/" FMTu64 ".",
 		  state->name, dm_percent_to_round_float(state->percent, 2),
-		  vdop.status->used_blocks, vdop.status->total_blocks);
+		  status.used_blocks, status.total_blocks);
 #endif
 
 	/* VDO pool size had changed. Clear the threshold. */
-	if (state->known_data_size != vdop.status->total_blocks) {
+	if (state->known_data_size != status.total_blocks) {
 		state->percent_check = CHECK_MINIMUM;
-		state->known_data_size = vdop.status->total_blocks;
+		state->known_data_size = status.total_blocks;
 		state->fails = 0;
 	}
 
@@ -261,12 +269,10 @@ void process_event(struct dm_task *dmt,
 	} else
 		state->max_fails = 1; /* Reset on success */
 
-	if (needs_policy)
+	/* FIXME: ATM nothing can be done, drop 0, once it becomes useful */
+	if (0 && needs_policy)
 		_use_policy(dmt, state);
 out:
-	if (vdop.status)
-		dm_pool_free(state->mem, vdop.status);
-
 	if (new_dmt)
 		dm_task_destroy(new_dmt);
 }

daemons/dmfilemapd/.gitignore

@@ -1,2 +1 @@
-dmsetup
 dmfilemapd

daemons/dmfilemapd/Makefile.in

@@ -0,0 +1,66 @@
+#
+# Copyright (C) 2016 Red Hat, Inc. All rights reserved.
+#
+# This file is part of the device-mapper userspace tools.
+#
+# This copyrighted material is made available to anyone wishing to use,
+# modify, copy, or redistribute it subject to the terms and conditions
+# of the GNU Lesser General Public License v.2.1.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+top_builddir = @top_builddir@
+
+SOURCES = dmfilemapd.c
+
+TARGETS = dmfilemapd
+
+.PHONY: install_dmfilemapd install_dmfilemapd_static
+
+INSTALL_DMFILEMAPD_TARGETS = install_dmfilemapd_dynamic
+
+CLEAN_TARGETS = dmfilemapd.static
+
+CFLOW_LIST = $(SOURCES)
+CFLOW_LIST_TARGET = $(LIB_NAME).cflow
+CFLOW_TARGET = dmfilemapd
+
+include $(top_builddir)/make.tmpl
+
+all: device-mapper
+device-mapper: $(TARGETS)
+
+CFLAGS_dmfilemapd.o += $(EXTRA_EXEC_CFLAGS)
+LIBS += -ldevmapper
+
+dmfilemapd: $(LIB_SHARED) dmfilemapd.o
+	$(CC) $(CFLAGS) $(LDFLAGS) $(EXTRA_EXEC_LDFLAGS) $(ELDFLAGS) \
+		-o $@ dmfilemapd.o $(DL_LIBS) $(LIBS)
+
+dmfilemapd.static: $(LIB_STATIC) dmfilemapd.o $(interfacebuilddir)/libdevmapper.a
+	$(CC) $(CFLAGS) $(LDFLAGS) $(ELDFLAGS) -static -L$(interfacebuilddir) \
+		-o $@ dmfilemapd.o $(DL_LIBS) $(LIBS) $(STATIC_LIBS)
+
+ifneq ("$(CFLOW_CMD)", "")
+CFLOW_SOURCES = $(addprefix $(srcdir)/, $(SOURCES))
+-include $(top_builddir)/libdm/libdevmapper.cflow
+-include $(top_builddir)/lib/liblvm-internal.cflow
+-include $(top_builddir)/lib/liblvm2cmd.cflow
+-include $(top_builddir)/daemons/dmfilemapd/$(LIB_NAME).cflow
+endif
+
+install_dmfilemapd_dynamic: dmfilemapd
+	$(INSTALL_PROGRAM) -D $< $(sbindir)/$(<F)
+
+install_dmfilemapd_static: dmfilemapd.static
+	$(INSTALL_PROGRAM) -D $< $(staticdir)/$(<F)
+
+install_dmfilemapd: $(INSTALL_DMFILEMAPD_TARGETS)
+
+install: install_dmfilemapd
+
+install_device-mapper: install_dmfilemapd

daemons/dmfilemapd/dmfilemapd.c

@@ -14,8 +14,11 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include "util.h"
+#include "tool.h"
-#include "libdm/misc/dm-logging.h"
+
+#include "dm-logging.h"
+
+#include "defaults.h"
 
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -26,15 +29,13 @@
 #include <ctype.h>
 
 #ifdef __linux__
-#  include "libdm/misc/kdev_t.h"
+#  include "kdev_t.h"
 #else
 #  define MAJOR(x) major((x))
 #  define MINOR(x) minor((x))
-#  define MKDEV(x,y) makedev((x),(y))
+#  define MKDEV(x,y) makedev((dev_t)(x),(dev_t)(y))
 #endif
 
-#define DEFAULT_PROC_DIR "/proc"
-
 /* limit to two updates/sec */
 #define FILEMAPD_WAIT_USECS 500000
 
@@ -180,14 +181,14 @@ static int _is_open_in_pid(pid_t pid, const char *path)
 		link_buf[len] = '\0';
 		if (!strcmp(deleted_path, link_buf)) {
 			if (closedir(pid_d))
-				log_sys_debug("closedir", path_buf);
+				log_sys_error("closedir", path_buf);
 			return 1;
 		}
 	}
 
 bad:
 	if (closedir(pid_d))
-		log_sys_debug("closedir", path_buf);
+		log_sys_error("closedir", path_buf);
 
 	return 0;
 }
@@ -230,13 +231,13 @@ static int _is_open(const char *path)
 			continue;
 		if (_is_open_in_pid(pid, path)) {
 			if (closedir(proc_d))
-				log_sys_debug("closedir", DEFAULT_PROC_DIR);
+				log_sys_error("closedir", DEFAULT_PROC_DIR);
 			return 1;
 		}
 	}
 
 	if (closedir(proc_d))
-		log_sys_debug("closedir", DEFAULT_PROC_DIR);
+		log_sys_error("closedir", DEFAULT_PROC_DIR);
 
 	return 0;
 }
@@ -310,7 +311,7 @@ static int _parse_args(int argc, char **argv, struct filemap_monitor *fm)
 		return 0;
 	}
 
-	fm->path = strdup(argv[0]);
+	fm->path = dm_strdup(argv[0]);
 	if (!fm->path) {
 		_early_log("Could not allocate memory for path argument.");
 		return 0;
@@ -537,8 +538,8 @@ static void _filemap_monitor_destroy(struct filemap_monitor *fm)
 		_filemap_monitor_end_notify(fm);
 		_filemap_monitor_close_fd(fm);
 	}
-	free((void *) fm->program_id);
+	dm_free((void *) fm->program_id);
-	free(fm->path);
+	dm_free(fm->path);
 }
 
 static int _filemap_monitor_check_same_file(int fd1, int fd2)
@@ -629,7 +630,7 @@ check_unlinked:
 static int _daemonise(struct filemap_monitor *fm)
 {
 	pid_t pid = 0;
-	int fd, ffd;
+	int fd;
 
 	if (!setsid()) {
 		_early_log("setsid failed.");
@@ -653,29 +654,26 @@ static int _daemonise(struct filemap_monitor *fm)
 	}
 
 	if (!_verbose) {
-		if ((fd = open("/dev/null", O_RDWR)) == -1) {
+		if (close(STDIN_FILENO))
-			_early_log("Error opening /dev/null.");
+			_early_log("Error closing stdin");
+		if (close(STDOUT_FILENO))
+			_early_log("Error closing stdout");
+		if (close(STDERR_FILENO))
+			_early_log("Error closing stderr");
+		if ((open("/dev/null", O_RDONLY) < 0) ||
+	            (open("/dev/null", O_WRONLY) < 0) ||
+		    (open("/dev/null", O_WRONLY) < 0)) {
+			_early_log("Error opening stdio streams.");
 			return 0;
 		}
-
-		if ((dup2(fd, STDIN_FILENO) == -1) ||
-		    (dup2(fd, STDOUT_FILENO) == -1) ||
-		    (dup2(fd, STDERR_FILENO) == -1)) {
-			if (fd > STDERR_FILENO)
-				(void) close(fd);
-			_early_log("Error redirecting stdin/out/err to null.");
-			/* coverity[leaked_handle] no leak */
-			return 0;
-		}
-		if (fd > STDERR_FILENO)
-			(void) close(fd);
 	}
 	/* TODO: Use libdaemon/server/daemon-server.c _daemonise() */
-	for (ffd = (int) sysconf(_SC_OPEN_MAX) - 1; ffd > STDERR_FILENO; --ffd)
+	for (fd = (int) sysconf(_SC_OPEN_MAX) - 1; fd > STDERR_FILENO; fd--) {
-		if (ffd != fm->fd)
+		if (fd == fm->fd)
-			(void) close(ffd);
+			continue;
+		(void) close(fd);
+	}
 
-	/* coverity[leaked_handle] no leak */
 	return 1;
 }
 
@@ -701,7 +699,7 @@ static int _update_regions(struct dm_stats *dms, struct filemap_monitor *fm)
 			 fm->group_id, regions[0]);
 		fm->group_id = regions[0];
 	}
-	free(regions);
+	dm_free(regions);
 	fm->nr_regions = nr_regions;
 	return 1;
 }
@@ -743,7 +741,7 @@ static int _dmfilemapd(struct filemap_monitor *fm)
 	 */
 	program_id = dm_stats_get_region_program_id(dms, fm->group_id);
 	if (program_id)
-		fm->program_id = strdup(program_id);
+		fm->program_id = dm_strdup(program_id);
 	else
 		fm->program_id = NULL;
 	dm_stats_set_program_id(dms, 1, program_id);
@@ -819,7 +817,7 @@ int main(int argc, char **argv)
 	memset(&fm, 0, sizeof(fm));
 
 	if (!_parse_args(argc, argv, &fm)) {
-		free(fm.path);
+		dm_free(fm.path);
 		return 1;
 	}
 
@@ -830,7 +828,7 @@ int main(int argc, char **argv)
 		 _mode_names[fm.mode], fm.path);
 
 	if (!_foreground && !_daemonise(&fm)) {
-		free(fm.path);
+		dm_free(fm.path);
 		return 1;
 	}
 

daemons/lvmdbusd/Makefile.in

@@ -15,8 +15,7 @@ srcdir = @srcdir@
 top_srcdir = @top_srcdir@
 top_builddir = @top_builddir@
 
-lvmdbuspydir = $(python3dir)/lvmdbusd
+lvmdbusdir = $(python3dir)/lvmdbusd
-lvmdbusdir = $(DESTDIR)$(lvmdbuspydir)
 
 LVMDBUS_SRCDIR_FILES = \
 	automatedproperties.py \
@@ -24,10 +23,11 @@ LVMDBUS_SRCDIR_FILES = \
 	cfg.py \
 	cmdhandler.py \
 	fetch.py \
+	__init__.py \
 	job.py \
 	loader.py \
-	lv.py \
 	main.py \
+	lv.py \
 	manager.py \
 	objectmanager.py \
 	pv.py \
@@ -35,8 +35,7 @@ LVMDBUS_SRCDIR_FILES = \
 	state.py \
 	udevwatch.py \
 	utils.py \
-	vg.py \
+	vg.py
-	__init__.py
 
 LVMDBUS_BUILDDIR_FILES = \
 	lvmdb.py \
@@ -52,18 +51,17 @@ include $(top_builddir)/make.tmpl
 .PHONY: install_lvmdbusd
 
 all:
-	$(Q) test -x $(LVMDBUSD) || chmod 755 $(LVMDBUSD)
+	test -x $(LVMDBUSD) || chmod 755 $(LVMDBUSD)
 
-install_lvmdbusd: $(LVMDBUSD)
+install_lvmdbusd:
-	@echo "    [INSTALL] $<"
+	$(INSTALL_DIR) $(sbindir)
-	$(Q) $(INSTALL_DIR) $(sbindir)
+	$(INSTALL_SCRIPT) $(LVMDBUSD) $(sbindir)
-	$(Q) $(INSTALL_SCRIPT) $(LVMDBUSD) $(sbindir)
+	$(INSTALL_DIR) $(DESTDIR)$(lvmdbusdir)
-	$(Q) $(INSTALL_DIR) $(lvmdbusdir)
+	(cd $(srcdir); $(INSTALL_DATA) $(LVMDBUS_SRCDIR_FILES) $(DESTDIR)$(lvmdbusdir))
-	$(Q) (cd $(srcdir); $(INSTALL_DATA) $(LVMDBUS_SRCDIR_FILES) $(lvmdbusdir))
+	$(INSTALL_DATA) $(LVMDBUS_BUILDDIR_FILES) $(DESTDIR)$(lvmdbusdir)
-	$(Q) $(INSTALL_DATA) $(LVMDBUS_BUILDDIR_FILES) $(lvmdbusdir)
+	PYTHON=$(PYTHON3) $(PYCOMPILE) --destdir "$(DESTDIR)" --basedir "$(lvmdbusdir)" $(LVMDBUS_SRCDIR_FILES) $(LVMDBUS_BUILDDIR_FILES)
-	$(Q) PYTHON=$(PYTHON3) $(PYCOMPILE) --destdir "$(DESTDIR)" --basedir "$(lvmdbuspydir)" $(LVMDBUS_SRCDIR_FILES) $(LVMDBUS_BUILDDIR_FILES)
+	$(CHMOD) 755 $(DESTDIR)$(lvmdbusdir)/__pycache__
-	$(Q) $(CHMOD) 755 $(lvmdbusdir)/__pycache__
+	$(CHMOD) 444 $(DESTDIR)$(lvmdbusdir)/__pycache__/*.py[co]
-	$(Q) $(CHMOD) 444 $(lvmdbusdir)/__pycache__/*.py[co]
 
 install_lvm2: install_lvmdbusd
 

daemons/lvmdbusd/automatedproperties.py

@@ -155,17 +155,16 @@ class AutomatedProperties(dbus.service.Object):
 		# through all dbus objects as some don't have a search method, like
 		# 'Manager' object.
 		if not self._ap_search_method:
-			return 0
+			return
+
+		search = self.lvm_id
+		if search_key:
+			search = search_key
 
 		# Either we have the new object state or we need to go fetch it
 		if object_state:
 			new_state = object_state
 		else:
-			if search_key:
-				search = search_key
-			else:
-				search = self.lvm_id
-
 			new_state = self._ap_search_method([search])[0]
 			assert isinstance(new_state, State)
 

daemons/lvmdbusd/background.py

@@ -9,14 +9,13 @@
 
 import subprocess
 from . import cfg
-from .cmdhandler import options_to_cli_args, LvmExecutionMeta, call_lvm
+from .cmdhandler import options_to_cli_args, LvmExecutionMeta
 import dbus
 from .utils import pv_range_append, pv_dest_ranges, log_error, log_debug,\
-					mt_async_call
+	add_no_notify
-from .request import RequestEntry
+import os
 import threading
 import time
-import traceback
 
 
 def pv_move_lv_cmd(move_options, lv_full_name,
@@ -40,50 +39,58 @@ def lv_merge_cmd(merge_options, lv_full_name):
 	return cmd
 
 
-def _load_wrapper(ignored):
-	cfg.load()
-
-
-def _move_callback(job_state, line_str):
-	try:
-		if line_str.count(':') == 2:
-			(device, ignore, percentage) = line_str.split(':')
-
-			job_state.Percent = int(round(
-				float(percentage.strip()[:-1]), 1))
-
-			# While the move is in progress we need to periodically update
-			# the state to reflect where everything is at.  we will do this
-			# by scheduling the load to occur in the main work queue.
-			r = RequestEntry(
-				-1, _load_wrapper, ("_move_callback: load",), None, None, False)
-			cfg.worker_q.put(r)
-	except ValueError:
-		log_error("Trying to parse percentage which failed for %s" % line_str)
-
-
 def _move_merge(interface_name, command, job_state):
 	# We need to execute these command stand alone by forking & exec'ing
 	# the command always as we will be getting periodic output from them on
 	# the status of the long running operation.
+	command.insert(0, cfg.LVM_CMD)
 
+	# Instruct lvm to not register an event with us
+	command = add_no_notify(command)
+
+	#(self, start, ended, cmd, ec, stdout_txt, stderr_txt)
 	meta = LvmExecutionMeta(time.time(), 0, command, -1000, None, None)
+
 	cfg.blackbox.add(meta)
 
-	ec, stdout, stderr = call_lvm(command, line_cb=_move_callback,
+	process = subprocess.Popen(command, stdout=subprocess.PIPE,
-									cb_data=job_state)
+								env=os.environ,
+								stderr=subprocess.PIPE, close_fds=True)
+
+	log_debug("Background process for %s is %d" %
+				(str(command), process.pid))
+
+	lines_iterator = iter(process.stdout.readline, b"")
+	for line in lines_iterator:
+		line_str = line.decode("utf-8")
+
+		# Check to see if the line has the correct number of separators
+		try:
+			if line_str.count(':') == 2:
+				(device, ignore, percentage) = line_str.split(':')
+				job_state.Percent = round(
+					float(percentage.strip()[:-1]), 1)
+
+				# While the move is in progress we need to periodically update
+				# the state to reflect where everything is at.
+				cfg.load()
+		except ValueError:
+			log_error("Trying to parse percentage which failed for %s" %
+				line_str)
+
+	out = process.communicate()
 
 	with meta.lock:
 		meta.ended = time.time()
-		meta.ec = ec
+		meta.ec = process.returncode
-		meta.stderr_txt = stderr
+		meta.stderr_txt = out[1]
 
-	if ec == 0:
+	if process.returncode == 0:
 		job_state.Percent = 100
 	else:
 		raise dbus.exceptions.DBusException(
 			interface_name,
-			'Exit code %s, stderr = %s' % (str(ec), stderr))
+			'Exit code %s, stderr = %s' % (str(process.returncode), out[1]))
 
 	cfg.load()
 	return '/'

daemons/lvmdbusd/cfg.py

@@ -47,11 +47,9 @@ BUS_NAME = os.getenv('LVM_DBUS_NAME', 'com.redhat.lvmdbus1')
 BASE_INTERFACE = 'com.redhat.lvmdbus1'
 PV_INTERFACE = BASE_INTERFACE + '.Pv'
 VG_INTERFACE = BASE_INTERFACE + '.Vg'
-VG_VDO_INTERFACE = BASE_INTERFACE + '.VgVdo'
 LV_INTERFACE = BASE_INTERFACE + '.Lv'
 LV_COMMON_INTERFACE = BASE_INTERFACE + '.LvCommon'
 THIN_POOL_INTERFACE = BASE_INTERFACE + '.ThinPool'
-VDO_POOL_INTERFACE = BASE_INTERFACE + '.VdoPool'
 CACHE_POOL_INTERFACE = BASE_INTERFACE + '.CachePool'
 LV_CACHED = BASE_INTERFACE + '.CachedLv'
 SNAPSHOT_INTERFACE = BASE_INTERFACE + '.Snapshot'
@@ -63,7 +61,6 @@ PV_OBJ_PATH = BASE_OBJ_PATH + '/Pv'
 VG_OBJ_PATH = BASE_OBJ_PATH + '/Vg'
 LV_OBJ_PATH = BASE_OBJ_PATH + '/Lv'
 THIN_POOL_PATH = BASE_OBJ_PATH + "/ThinPool"
-VDO_POOL_PATH = BASE_OBJ_PATH + "/VdoPool"
 CACHE_POOL_PATH = BASE_OBJ_PATH + "/CachePool"
 HIDDEN_LV_PATH = BASE_OBJ_PATH + "/HiddenLv"
 MANAGER_OBJ_PATH = BASE_OBJ_PATH + '/Manager'
@@ -74,7 +71,6 @@ pv_id = itertools.count()
 vg_id = itertools.count()
 lv_id = itertools.count()
 thin_id = itertools.count()
-vdo_id = itertools.count()
 cache_pool_id = itertools.count()
 job_id = itertools.count()
 hidden_lv = itertools.count()
@@ -83,9 +79,6 @@ hidden_lv = itertools.count()
 load = None
 event = None
 
-# Boolean to denote if lvm supports VDO integration
-vdo_support = False
-
 # Global cached state
 db = None
 
@@ -94,13 +87,3 @@ blackbox = None
 
 # RequestEntry ctor
 create_request_entry = None
-
-
-def exit_daemon():
-    """
-    Exit the daemon cleanly
-    :return:
-    """
-    if run and loop:
-        run.value = 0
-        loop.quit()

daemons/lvmdbusd/cmdhandler.py

@@ -8,7 +8,6 @@
 # along with this program. If not, see <http://www.gnu.org/licenses/>.
 
 from subprocess import Popen, PIPE
-import select
 import time
 import threading
 from itertools import chain
@@ -17,8 +16,7 @@ import traceback
 import os
 
 from lvmdbusd import cfg
-from lvmdbusd.utils import pv_dest_ranges, log_debug, log_error, add_no_notify,\
+from lvmdbusd.utils import pv_dest_ranges, log_debug, log_error, add_no_notify
-							make_non_block, read_decoded
 from lvmdbusd.lvm_shell_proxy import LVMShellProxy
 
 try:
@@ -69,7 +67,7 @@ class LvmFlightRecorder(object):
 		with cmd_lock:
 			if len(self.queue):
 				log_error("LVM dbus flight recorder START")
-				for c in reversed(self.queue):
+				for c in self.queue:
 					log_error(str(c))
 				log_error("LVM dbus flight recorder END")
 
@@ -84,23 +82,16 @@ def _debug_c(cmd, exit_code, out):
 	log_error(("STDERR=\n %s\n" % out[1]))
 
 
-def call_lvm(command, debug=False, line_cb=None,
+def call_lvm(command, debug=False):
-			 cb_data=None):
 	"""
 	Call an executable and return a tuple of exitcode, stdout, stderr
 	:param command:     Command to execute
 	:param debug:       Dump debug to stdout
-	:param line_cb:	Call the supplied function for each line read from
-					stdin, CALL MUST EXECUTE QUICKLY and not *block*
-					otherwise call_lvm function will fail to read
-					stdin/stdout.  Return value of call back is ignored
-	:param cb_data: Supplied to callback to allow caller access to
-								its own data
-
-	# Callback signature
-	def my_callback(my_context, line_read_stdin)
-		pass
 	"""
+	# print 'STACK:'
+	# for line in traceback.format_stack():
+	#    print line.strip()
+
 	# Prepend the full lvm executable so that we can run different versions
 	# in different locations on the same box
 	command.insert(0, cfg.LVM_CMD)
@@ -108,44 +99,10 @@ def call_lvm(command, debug=False, line_cb=None,
 
 	process = Popen(command, stdout=PIPE, stderr=PIPE, close_fds=True,
 					env=os.environ)
+	out = process.communicate()
 
-	stdout_text = ""
+	stdout_text = bytes(out[0]).decode("utf-8")
-	stderr_text = ""
+	stderr_text = bytes(out[1]).decode("utf-8")
-	stdout_index = 0
-	make_non_block(process.stdout)
-	make_non_block(process.stderr)
-
-	while True:
-		try:
-			rd_fd = [process.stdout.fileno(), process.stderr.fileno()]
-			ready = select.select(rd_fd, [], [], 2)
-
-			for r in ready[0]:
-				if r == process.stdout.fileno():
-					stdout_text += read_decoded(process.stdout)
-				elif r == process.stderr.fileno():
-					stderr_text += read_decoded(process.stderr)
-
-			if line_cb is not None:
-				# Process the callback for each line read!
-				while True:
-					i = stdout_text.find("\n", stdout_index)
-					if i != -1:
-						try:
-							line_cb(cb_data, stdout_text[stdout_index:i])
-						except:
-							st = traceback.format_exc()
-							log_error("call_lvm: line_cb exception: \n %s" % st)
-						stdout_index = i + 1
-					else:
-						break
-
-			# Check to see if process has terminated, None when running
-			if process.poll() is not None:
-				break
-		except IOError as ioe:
-			log_debug("call_lvm:" + str(ioe))
-			pass
 
 	if debug or process.returncode != 0:
 		_debug_c(command, process.returncode, (stdout_text, stderr_text))
@@ -260,9 +217,6 @@ def options_to_cli_args(options):
 		else:
 			rc.append("--%s" % k)
 		if v != "":
-			if isinstance(v, int):
-				rc.append(str(int(v)))
-			else:
 			rc.append(str(v))
 	return rc
 
@@ -309,10 +263,10 @@ def lv_tag(lv_name, add, rm, tag_options):
 	return _tag('lvchange', lv_name, add, rm, tag_options)
 
 
-def vg_rename(vg_uuid, new_name, rename_options):
+def vg_rename(vg, new_name, rename_options):
 	cmd = ['vgrename']
 	cmd.extend(options_to_cli_args(rename_options))
-	cmd.extend([vg_uuid, new_name])
+	cmd.extend([vg, new_name])
 	return call(cmd)
 
 
@@ -326,7 +280,7 @@ def vg_remove(vg_name, remove_options):
 def vg_lv_create(vg_name, create_options, name, size_bytes, pv_dests):
 	cmd = ['lvcreate']
 	cmd.extend(options_to_cli_args(create_options))
-	cmd.extend(['--size', '%dB' % size_bytes])
+	cmd.extend(['--size', str(size_bytes) + 'B'])
 	cmd.extend(['--name', name, vg_name, '--yes'])
 	pv_dest_ranges(cmd, pv_dests)
 	return call(cmd)
@@ -338,7 +292,7 @@ def vg_lv_snapshot(vg_name, snapshot_options, name, size_bytes):
 	cmd.extend(["-s"])
 
 	if size_bytes != 0:
-		cmd.extend(['--size', '%dB' % size_bytes])
+		cmd.extend(['--size', str(size_bytes) + 'B'])
 
 	cmd.extend(['--name', name, vg_name])
 	return call(cmd)
@@ -349,9 +303,9 @@ def _vg_lv_create_common_cmd(create_options, size_bytes, thin_pool):
 	cmd.extend(options_to_cli_args(create_options))
 
 	if not thin_pool:
-		cmd.extend(['--size', '%dB' % size_bytes])
+		cmd.extend(['--size', str(size_bytes) + 'B'])
 	else:
-		cmd.extend(['--thin', '--size', '%dB' % size_bytes])
+		cmd.extend(['--thin', '--size', str(size_bytes) + 'B'])
 
 	cmd.extend(['--yes'])
 	return cmd
@@ -366,10 +320,10 @@ def vg_lv_create_linear(vg_name, create_options, name, size_bytes, thin_pool):
 def vg_lv_create_striped(vg_name, create_options, name, size_bytes,
 							num_stripes, stripe_size_kb, thin_pool):
 	cmd = _vg_lv_create_common_cmd(create_options, size_bytes, thin_pool)
-	cmd.extend(['--stripes', str(int(num_stripes))])
+	cmd.extend(['--stripes', str(num_stripes)])
 
 	if stripe_size_kb != 0:
-		cmd.extend(['--stripesize', str(int(stripe_size_kb))])
+		cmd.extend(['--stripesize', str(stripe_size_kb)])
 
 	cmd.extend(['--name', name, vg_name])
 	return call(cmd)
@@ -382,13 +336,13 @@ def _vg_lv_create_raid(vg_name, create_options, name, raid_type, size_bytes,
 	cmd.extend(options_to_cli_args(create_options))
 
 	cmd.extend(['--type', raid_type])
-	cmd.extend(['--size', '%dB' % size_bytes])
+	cmd.extend(['--size', str(size_bytes) + 'B'])
 
 	if num_stripes != 0:
-		cmd.extend(['--stripes', str(int(num_stripes))])
+		cmd.extend(['--stripes', str(num_stripes)])
 
 	if stripe_size_kb != 0:
-		cmd.extend(['--stripesize', str(int(stripe_size_kb))])
+		cmd.extend(['--stripesize', str(stripe_size_kb)])
 
 	cmd.extend(['--name', name, vg_name, '--yes'])
 	return call(cmd)
@@ -409,8 +363,8 @@ def vg_lv_create_mirror(
 	cmd.extend(options_to_cli_args(create_options))
 
 	cmd.extend(['--type', 'mirror'])
-	cmd.extend(['--mirrors', str(int(num_copies))])
+	cmd.extend(['--mirrors', str(num_copies)])
-	cmd.extend(['--size', '%dB' % size_bytes])
+	cmd.extend(['--size', str(size_bytes) + 'B'])
 	cmd.extend(['--name', name, vg_name, '--yes'])
 	return call(cmd)
 
@@ -431,24 +385,6 @@ def vg_create_thin_pool(md_full_name, data_full_name, create_options):
 	return call(cmd)
 
 
-def vg_create_vdo_pool_lv_and_lv(vg_name, pool_name, lv_name, data_size,
-									virtual_size, create_options):
-	cmd = ['lvcreate']
-	cmd.extend(options_to_cli_args(create_options))
-	cmd.extend(['-y', '--type', 'vdo', '-n', lv_name,
-				'-L', '%dB' % data_size, '-V', '%dB' % virtual_size,
-				"%s/%s" % (vg_name, pool_name)])
-	return call(cmd)
-
-
-def vg_create_vdo_pool(pool_full_name, lv_name, virtual_size, create_options):
-	cmd = ['lvconvert']
-	cmd.extend(options_to_cli_args(create_options))
-	cmd.extend(['--type', 'vdo-pool', '-n', lv_name, '--force', '-y',
-				'-V', '%dB' % virtual_size, pool_full_name])
-	return call(cmd)
-
-
 def lv_remove(lv_path, remove_options):
 	cmd = ['lvremove']
 	cmd.extend(options_to_cli_args(remove_options))
@@ -482,7 +418,7 @@ def lv_resize(lv_full_name, size_change, pv_dests,
 def lv_lv_create(lv_full_name, create_options, name, size_bytes):
 	cmd = ['lvcreate']
 	cmd.extend(options_to_cli_args(create_options))
-	cmd.extend(['--virtualsize', '%dB' % size_bytes, '-T'])
+	cmd.extend(['--virtualsize', str(size_bytes) + 'B', '-T'])
 	cmd.extend(['--name', name, lv_full_name, '--yes'])
 	return call(cmd)
 
@@ -496,15 +432,6 @@ def lv_cache_lv(cache_pool_full_name, lv_full_name, cache_options):
 	return call(cmd)
 
 
-def lv_writecache_lv(cache_lv_full_name, lv_full_name, cache_options):
-	# lvconvert --type writecache --cachevol VG/CacheLV VG/OriginLV
-	cmd = ['lvconvert']
-	cmd.extend(options_to_cli_args(cache_options))
-	cmd.extend(['-y', '--type', 'writecache', '--cachevol',
-				cache_lv_full_name, lv_full_name])
-	return call(cmd)
-
-
 def lv_detach_cache(lv_full_name, detach_options, destroy_cache):
 	cmd = ['lvconvert']
 	if destroy_cache:
@@ -520,28 +447,6 @@ def lv_detach_cache(lv_full_name, detach_options, destroy_cache):
 	return call(cmd)
 
 
-def lv_vdo_compression(lv_path, enable, comp_options):
-	cmd = ['lvchange', '--compression']
-	if enable:
-		cmd.append('y')
-	else:
-		cmd.append('n')
-	cmd.extend(options_to_cli_args(comp_options))
-	cmd.append(lv_path)
-	return call(cmd)
-
-
-def lv_vdo_deduplication(lv_path, enable, dedup_options):
-	cmd = ['lvchange', '--deduplication']
-	if enable:
-		cmd.append('y')
-	else:
-		cmd.append('n')
-	cmd.extend(options_to_cli_args(dedup_options))
-	cmd.append(lv_path)
-	return call(cmd)
-
-
 def supports_json():
 	cmd = ['help']
 	rc, out, err = call(cmd)
@@ -554,16 +459,6 @@ def supports_json():
 	return False
 
 
-def supports_vdo():
-	cmd = ['segtypes']
-	rc, out, err = call(cmd)
-	if rc == 0:
-		if "vdo" in out:
-			log_debug("We have VDO support")
-			return True
-	return False
-
-
 def lvm_full_report_json():
 	pv_columns = ['pv_name', 'pv_uuid', 'pv_fmt', 'pv_size', 'pv_free',
 					'pv_used', 'dev_size', 'pv_mda_size', 'pv_mda_free',
@@ -591,22 +486,6 @@ def lvm_full_report_json():
 
 	lv_seg_columns = ['seg_pe_ranges', 'segtype', 'lv_uuid']
 
-	if cfg.vdo_support:
-		lv_columns.extend(
-			['vdo_operating_mode', 'vdo_compression_state', 'vdo_index_state',
-				'vdo_used_size', 'vdo_saving_percent']
-		)
-
-		lv_seg_columns.extend(
-			['vdo_compression', 'vdo_deduplication',
-				'vdo_use_metadata_hints', 'vdo_minimum_io_size',
-				'vdo_block_map_cache_size', 'vdo_block_map_era_length',
-				'vdo_use_sparse_index', 'vdo_index_memory_size',
-				'vdo_slab_size', 'vdo_ack_threads', 'vdo_bio_threads',
-				'vdo_bio_rotation', 'vdo_cpu_threads', 'vdo_hash_zone_threads',
-				'vdo_logical_threads', 'vdo_physical_threads',
-				'vdo_max_discard', 'vdo_write_policy', 'vdo_header_size'])
-
 	cmd = _dc('fullreport', [
 		'-a',		# Need hidden too
 		'--configreport', 'pv', '-o', ','.join(pv_columns),
@@ -618,8 +497,7 @@ def lvm_full_report_json():
 	])
 
 	rc, out, err = call(cmd)
-	# When we have an exported vg the exit code of lvs or fullreport will be 5
+	if rc == 0:
-	if rc == 0 or rc == 5:
 		# With the current implementation, if we are using the shell then we
 		# are using JSON and JSON is returned back to us as it was parsed to
 		# figure out if we completed OK or not
@@ -627,13 +505,7 @@ def lvm_full_report_json():
 			assert(type(out) == dict)
 			return out
 		else:
-			try:
 			return json.loads(out)
-			except json.decoder.JSONDecodeError as joe:
-				log_error("JSONDecodeError %s, \n JSON=\n%s\n" %
-							(str(joe), out))
-				raise joe
-
 	return None
 
 
@@ -683,7 +555,7 @@ def pv_resize(device, size_bytes, create_options):
 	cmd.extend(options_to_cli_args(create_options))
 
 	if size_bytes != 0:
-		cmd.extend(['--yes', '--setphysicalvolumesize', '%dB' % size_bytes])
+		cmd.extend(['--yes', '--setphysicalvolumesize', str(size_bytes) + 'B'])
 
 	cmd.extend([device])
 	return call(cmd)
@@ -779,12 +651,12 @@ def vg_allocation_policy(vg_name, policy, policy_options):
 
 
 def vg_max_pv(vg_name, number, max_options):
-	return _vg_value_set(vg_name, ['--maxphysicalvolumes', str(int(number))],
+	return _vg_value_set(vg_name, ['--maxphysicalvolumes', str(number)],
 							max_options)
 
 
 def vg_max_lv(vg_name, number, max_options):
-	return _vg_value_set(vg_name, ['-l', str(int(number))], max_options)
+	return _vg_value_set(vg_name, ['-l', str(number)], max_options)
 
 
 def vg_uuid_gen(vg_name, ignore, options):
@@ -826,7 +698,6 @@ def activate_deactivate(op, name, activate, control_flags, options):
 		op += 'n'
 
 	cmd.append(op)
-	cmd.append("-y")
 	cmd.append(name)
 	return call(cmd)
 

daemons/lvmdbusd/fetch.py

@@ -14,61 +14,24 @@ from . import cfg
 from .utils import MThreadRunner, log_debug, log_error
 import threading
 import queue
-import time
 import traceback
 
 
 def _main_thread_load(refresh=True, emit_signal=True):
 	num_total_changes = 0
-	to_remove = []
 
-	(changes, remove) = load_pvs(
+	num_total_changes += load_pvs(
 		refresh=refresh,
 		emit_signal=emit_signal,
-		cache_refresh=False)[1:]
+		cache_refresh=False)[1]
-	num_total_changes += changes
+	num_total_changes += load_vgs(
-	to_remove.extend(remove)
-
-	(changes, remove) = load_vgs(
 		refresh=refresh,
 		emit_signal=emit_signal,
-		cache_refresh=False)[1:]
+		cache_refresh=False)[1]
-
+	num_total_changes += load_lvs(
-	num_total_changes += changes
-	to_remove.extend(remove)
-
-	(lv_changes, remove) = load_lvs(
 		refresh=refresh,
 		emit_signal=emit_signal,
-		cache_refresh=False)[1:]
+		cache_refresh=False)[1]
-
-	num_total_changes += lv_changes
-	to_remove.extend(remove)
-
-	# When the LVs change it can cause another change in the VGs which is
-	# missed if we don't scan through the VGs again.  We could achieve this
-	# the other way and re-scan the LVs, but in general there are more LVs than
-	# VGs, thus this should be more efficient.  This happens when a LV interface
-	# changes causing the dbus object representing it to be removed and
-	# recreated.
-	if refresh and lv_changes > 0:
-		(changes, remove) = load_vgs(
-			refresh=refresh,
-			emit_signal=emit_signal,
-			cache_refresh=False)[1:]
-
-	num_total_changes += changes
-	to_remove.extend(remove)
-
-	# Remove any objects that are no longer needed.  We do this after we process
-	# all the objects to ensure that references still exist for objects that
-	# are processed after them.
-	to_remove.reverse()
-	for i in to_remove:
-		dbus_obj = cfg.om.get_object_by_path(i)
-		if dbus_obj:
-			cfg.om.remove_object(dbus_obj, True)
-			num_total_changes += 1
 
 	return num_total_changes
 
@@ -119,8 +82,6 @@ class StateUpdate(object):
 
 	@staticmethod
 	def update_thread(obj):
-		exception_count = 0
-
 		queued_requests = []
 		while cfg.run.value != 0:
 			# noinspection PyBroadException
@@ -175,26 +136,12 @@ class StateUpdate(object):
 				# wake up if we get an exception
 				queued_requests = []
 
-				# We retrieved OK, clear exception count
-				exception_count = 0
-
 			except queue.Empty:
 				pass
-			except Exception as e:
+			except Exception:
 				st = traceback.format_exc()
 				log_error("update_thread exception: \n%s" % st)
 				cfg.blackbox.dump()
-				exception_count += 1
-				if exception_count >= 5:
-					for i in queued_requests:
-						i.set_result(e)
-
-					log_error("Too many errors in update_thread, exiting daemon")
-					cfg.exit_daemon()
-
-				else:
-					# Slow things down when encountering errors
-					time.sleep(1)
 
 	def __init__(self):
 		self.lock = threading.RLock()

daemons/lvmdbusd/loader.py

@@ -75,10 +75,11 @@ def common(retrieve, o_type, search_keys,
 
 		object_path = None
 
-	to_remove = []
 	if refresh:
-		to_remove = list(existing_paths.keys())
+		for k in list(existing_paths.keys()):
+			cfg.om.remove_object(cfg.om.get_object_by_path(k), True)
+			num_changes += 1
 
 	num_changes += len(rc)
 
-	return rc, num_changes, to_remove
+	return rc, num_changes

daemons/lvmdbusd/lv.py

@@ -10,22 +10,20 @@
 from .automatedproperties import AutomatedProperties
 
 from . import utils
-from .utils import vg_obj_path_generate, log_error, _handle_execute
+from .utils import vg_obj_path_generate
 import dbus
 from . import cmdhandler
 from . import cfg
 from .cfg import LV_INTERFACE, THIN_POOL_INTERFACE, SNAPSHOT_INTERFACE, \
-	LV_COMMON_INTERFACE, CACHE_POOL_INTERFACE, LV_CACHED, VDO_POOL_INTERFACE
+	LV_COMMON_INTERFACE, CACHE_POOL_INTERFACE, LV_CACHED
 from .request import RequestEntry
-from .utils import n, n32, d
+from .utils import n, n32
 from .loader import common
 from .state import State
 from . import background
 from .utils import round_size, mt_remove_dbus_objects
 from .job import JobState
 
-import traceback
-
 
 # Try and build a key for a LV, so that we sort the LVs with least dependencies
 # first.  This may be error prone because of the flexibility LVM
@@ -74,49 +72,6 @@ def lvs_state_retrieve(selection, cache_refresh=True):
 	lvs = sorted(cfg.db.fetch_lvs(selection), key=get_key)
 
 	for l in lvs:
-		if cfg.vdo_support:
-			rc.append(LvStateVdo(
-				l['lv_uuid'], l['lv_name'],
-				l['lv_path'], n(l['lv_size']),
-				l['vg_name'],
-				l['vg_uuid'], l['pool_lv_uuid'],
-				l['pool_lv'], l['origin_uuid'], l['origin'],
-				n32(l['data_percent']), l['lv_attr'],
-				l['lv_tags'], l['lv_active'], l['data_lv'],
-				l['metadata_lv'], l['segtype'], l['lv_role'],
-				l['lv_layout'],
-				n32(l['snap_percent']),
-				n32(l['metadata_percent']),
-				n32(l['copy_percent']),
-				n32(l['sync_percent']),
-				n(l['lv_metadata_size']),
-				l['move_pv'],
-				l['move_pv_uuid'],
-				l['vdo_operating_mode'],
-				l['vdo_compression_state'],
-				l['vdo_index_state'],
-				n(l['vdo_used_size']),
-				d(l['vdo_saving_percent']),
-				l['vdo_compression'],
-				l['vdo_deduplication'],
-				l['vdo_use_metadata_hints'],
-				n32(l['vdo_minimum_io_size']),
-				n(l['vdo_block_map_cache_size']),
-				n32(l['vdo_block_map_era_length']),
-				l['vdo_use_sparse_index'],
-				n(l['vdo_index_memory_size']),
-				n(l['vdo_slab_size']),
-				n32(l['vdo_ack_threads']),
-				n32(l['vdo_bio_threads']),
-				n32(l['vdo_bio_rotation']),
-				n32(l['vdo_cpu_threads']),
-				n32(l['vdo_hash_zone_threads']),
-				n32(l['vdo_logical_threads']),
-				n32(l['vdo_physical_threads']),
-				n32(l['vdo_max_discard']),
-				l['vdo_write_policy'],
-				n32(l['vdo_header_size'])))
-		else:
 		rc.append(LvState(
 			l['lv_uuid'], l['lv_name'],
 			l['lv_path'], n(l['lv_size']),
@@ -237,8 +192,6 @@ class LvState(State):
 	def _object_type_create(self):
 		if self.Attr[0] == 't':
 			return LvThinPool
-		elif self.Attr[0] == 'd':
-			return LvVdoPool
 		elif self.Attr[0] == 'C':
 			if 'pool' in self.layout:
 				return LvCachePool
@@ -265,34 +218,6 @@ class LvState(State):
 		return (klass, path_method)
 
 
-class LvStateVdo(LvState):
-
-	def __init__(self, Uuid, Name, Path, SizeBytes,
-					vg_name, vg_uuid, pool_lv_uuid, PoolLv,
-					origin_uuid, OriginLv, DataPercent, Attr, Tags, active,
-					data_lv, metadata_lv, segtypes, role, layout, SnapPercent,
-					MetaDataPercent, CopyPercent, SyncPercent,
-					MetaDataSizeBytes, move_pv, move_pv_uuid,
-					vdo_operating_mode, vdo_compression_state, vdo_index_state,
-					vdo_used_size,vdo_saving_percent,vdo_compression,
-					vdo_deduplication,vdo_use_metadata_hints,
-					vdo_minimum_io_size,vdo_block_map_cache_size,
-					vdo_block_map_era_length,vdo_use_sparse_index,
-					vdo_index_memory_size,vdo_slab_size,vdo_ack_threads,
-					vdo_bio_threads,vdo_bio_rotation,vdo_cpu_threads,
-					vdo_hash_zone_threads,vdo_logical_threads,
-					vdo_physical_threads,vdo_max_discard,
-					vdo_write_policy,vdo_header_size):
-		super(LvStateVdo, self).__init__(Uuid, Name, Path, SizeBytes,
-					vg_name, vg_uuid, pool_lv_uuid, PoolLv,
-					origin_uuid, OriginLv, DataPercent, Attr, Tags, active,
-					data_lv, metadata_lv, segtypes, role, layout, SnapPercent,
-					MetaDataPercent, CopyPercent, SyncPercent,
-					MetaDataSizeBytes, move_pv, move_pv_uuid)
-
-		utils.init_class_from_arguments(self, "vdo_", snake_to_pascal=True)
-
-
 # noinspection PyPep8Naming
 @utils.dbus_property(LV_COMMON_INTERFACE, 'Uuid', 's')
 @utils.dbus_property(LV_COMMON_INTERFACE, 'Name', 's')
@@ -348,7 +273,13 @@ class LvCommon(AutomatedProperties):
 
 	@staticmethod
 	def handle_execute(rc, out, err):
-		_handle_execute(rc, out, err, LV_INTERFACE)
+		if rc == 0:
+			cfg.load()
+		else:
+			# Need to work on error handling, need consistent
+			raise dbus.exceptions.DBusException(
+				LV_INTERFACE,
+				'Exit code %s, stderr = %s' % (str(rc), err))
 
 	@staticmethod
 	def validate_dbus_object(lv_uuid, lv_name):
@@ -360,22 +291,6 @@ class LvCommon(AutomatedProperties):
 				(lv_uuid, lv_name))
 		return dbo
 
-	def attr_struct(self, index, type_map, default='undisclosed'):
-		try:
-			if self.state.Attr[index] not in type_map:
-				log_error("LV %s %s with lv_attr %s, lv_attr[%d] = "
-					"'%s' is not known" %
-					(self.Uuid, self.Name, self.Attr, index,
-					self.state.Attr[index]))
-
-			return dbus.Struct((self.state.Attr[index],
-				type_map.get(self.state.Attr[index], default)),
-								signature="(ss)")
-		except BaseException:
-			st = traceback.format_exc()
-			log_error("attr_struct: \n%s" % st)
-			return dbus.Struct(('?', 'Unavailable'), signature="(ss)")
-
 	@property
 	def VolumeType(self):
 		type_map = {'C': 'Cache', 'm': 'mirrored',
@@ -388,16 +303,17 @@ class LvCommon(AutomatedProperties):
 					'l': 'mirror log device', 'c': 'under conversion',
 					'V': 'thin Volume', 't': 'thin pool', 'T': 'Thin pool data',
 					'e': 'raid or pool metadata or pool metadata spare',
-					'd': 'vdo pool', 'D': 'vdo pool data', 'g': 'integrity',
 					'-': 'Unspecified'}
-		return self.attr_struct(0, type_map)
+		return dbus.Struct((self.state.Attr[0], type_map[self.state.Attr[0]]),
+						signature="as")
 
 	@property
 	def Permissions(self):
 		type_map = {'w': 'writable', 'r': 'read-only',
 					'R': 'Read-only activation of non-read-only volume',
 					'-': 'Unspecified'}
-		return self.attr_struct(1, type_map)
+		return dbus.Struct((self.state.Attr[1], type_map[self.state.Attr[1]]),
+						signature="(ss)")
 
 	@property
 	def AllocationPolicy(self):
@@ -406,7 +322,8 @@ class LvCommon(AutomatedProperties):
 					'i': 'inherited', 'I': 'inherited locked',
 					'l': 'cling', 'L': 'cling locked',
 					'n': 'normal', 'N': 'normal locked', '-': 'Unspecified'}
-		return self.attr_struct(2, type_map)
+		return dbus.Struct((self.state.Attr[2], type_map[self.state.Attr[2]]),
+						signature="(ss)")
 
 	@property
 	def FixedMinor(self):
@@ -414,20 +331,15 @@ class LvCommon(AutomatedProperties):
 
 	@property
 	def State(self):
-		type_map = {'a': 'active',
+		type_map = {'a': 'active', 's': 'suspended', 'I': 'Invalid snapshot',
-					's': 'suspended',
-					'I': 'Invalid snapshot',
 					'S': 'invalid Suspended snapshot',
 					'm': 'snapshot merge failed',
 					'M': 'suspended snapshot (M)erge failed',
 					'd': 'mapped device present without  tables',
 					'i': 'mapped device present with inactive table',
-					'h': 'historical',
+					'X': 'unknown', '-': 'Unspecified'}
-					'c': 'check needed suspended thin-pool',
+		return dbus.Struct((self.state.Attr[4], type_map[self.state.Attr[4]]),
-					'C': 'check needed',
+						signature="(ss)")
-					'X': 'unknown',
-					'-': 'Unspecified'}
-		return self.attr_struct(4, type_map)
 
 	@property
 	def TargetType(self):
@@ -443,18 +355,11 @@ class LvCommon(AutomatedProperties):
 
 	@property
 	def Health(self):
-		type_map = {'p': 'partial',
+		type_map = {'p': 'partial', 'r': 'refresh',
-					'r': 'refresh needed',
+					'm': 'mismatches', 'w': 'writemostly',
-					'm': 'mismatches',
+					'X': 'X unknown', '-': 'Unspecified'}
-					'w': 'writemostly',
+		return dbus.Struct((self.state.Attr[8], type_map[self.state.Attr[8]]),
-					'X': 'unknown',
+					signature="(ss)")
-					'-': 'unspecified',
-					's': 'reshaping',
-					'F': 'failed',
-					'D': 'Data space',
-					'R': 'Remove',
-					'M': 'Metadata'}
-		return self.attr_struct(8, type_map)
 
 	@property
 	def SkipActivation(self):
@@ -524,7 +429,8 @@ class Lv(LvCommon):
 		# Make sure we have a dbus object representing it
 		LvCommon.validate_dbus_object(lv_uuid, lv_name)
 		# Remove the LV, if successful then remove from the model
-		LvCommon.handle_execute(*cmdhandler.lv_remove(lv_name, remove_options))
+		rc, out, err = cmdhandler.lv_remove(lv_name, remove_options)
+		LvCommon.handle_execute(rc, out, err)
 		return '/'
 
 	@dbus.service.method(
@@ -544,8 +450,9 @@ class Lv(LvCommon):
 		# Make sure we have a dbus object representing it
 		LvCommon.validate_dbus_object(lv_uuid, lv_name)
 		# Rename the logical volume
-		LvCommon.handle_execute(*cmdhandler.lv_rename(lv_name, new_name,
+		rc, out, err = cmdhandler.lv_rename(lv_name, new_name,
-												rename_options))
+											rename_options)
+		LvCommon.handle_execute(rc, out, err)
 		return '/'
 
 	@dbus.service.method(
@@ -594,11 +501,13 @@ class Lv(LvCommon):
 				remainder = space % 512
 				optional_size = space + 512 - remainder
 
-		LvCommon.handle_execute(*cmdhandler.vg_lv_snapshot(
+		rc, out, err = cmdhandler.vg_lv_snapshot(
-			lv_name, snapshot_options,name, optional_size))
+			lv_name, snapshot_options, name, optional_size)
+		LvCommon.handle_execute(rc, out, err)
 		full_name = "%s/%s" % (dbo.vg_name_lookup(), name)
 		return cfg.om.get_object_path_by_lvm_id(full_name)
 
+
 	@dbus.service.method(
 		dbus_interface=LV_INTERFACE,
 		in_signature='stia{sv}',
@@ -634,8 +543,9 @@ class Lv(LvCommon):
 				pv_dests.append((pv_dbus_obj.lvm_id, pr[1], pr[2]))
 
 		size_change = new_size_bytes - dbo.SizeBytes
-		LvCommon.handle_execute(*cmdhandler.lv_resize(
+		rc, out, err = cmdhandler.lv_resize(dbo.lvm_id, size_change,
-			dbo.lvm_id, size_change,pv_dests, resize_options))
+											pv_dests, resize_options)
+		LvCommon.handle_execute(rc, out, err)
 		return "/"
 
 	@dbus.service.method(
@@ -670,8 +580,9 @@ class Lv(LvCommon):
 								options):
 		# Make sure we have a dbus object representing it
 		LvCommon.validate_dbus_object(uuid, lv_name)
-		LvCommon.handle_execute(*cmdhandler.activate_deactivate(
+		rc, out, err = cmdhandler.activate_deactivate(
-			'lvchange', lv_name, activate, control_flags, options))
+			'lvchange', lv_name, activate, control_flags, options)
+		LvCommon.handle_execute(rc, out, err)
 		return '/'
 
 	@dbus.service.method(
@@ -705,8 +616,9 @@ class Lv(LvCommon):
 	def _add_rm_tags(uuid, lv_name, tags_add, tags_del, tag_options):
 		# Make sure we have a dbus object representing it
 		LvCommon.validate_dbus_object(uuid, lv_name)
-		LvCommon.handle_execute(*cmdhandler.lv_tag(
+		rc, out, err = cmdhandler.lv_tag(
-			lv_name, tags_add, tags_del, tag_options))
+			lv_name, tags_add, tags_del, tag_options)
+		LvCommon.handle_execute(rc, out, err)
 		return '/'
 
 	@dbus.service.method(
@@ -743,152 +655,6 @@ class Lv(LvCommon):
 			cb, cbe, return_tuple=False)
 		cfg.worker_q.put(r)
 
-	@staticmethod
-	def _writecache_lv(lv_uuid, lv_name, lv_object_path, cache_options):
-		# Make sure we have a dbus object representing it
-		dbo = LvCommon.validate_dbus_object(lv_uuid, lv_name)
-
-		# Make sure we have dbus object representing lv to cache
-		lv_to_cache = cfg.om.get_object_by_path(lv_object_path)
-
-		if lv_to_cache:
-			fcn = lv_to_cache.lv_full_name()
-			rc, out, err = cmdhandler.lv_writecache_lv(
-				dbo.lv_full_name(), fcn, cache_options)
-			if rc == 0:
-				# When we cache an LV, the cache pool and the lv that is getting
-				# cached need to be removed from the object manager and
-				# re-created as their interfaces have changed!
-				mt_remove_dbus_objects((dbo, lv_to_cache))
-				cfg.load()
-
-				lv_converted = cfg.om.get_object_path_by_lvm_id(fcn)
-			else:
-				raise dbus.exceptions.DBusException(
-					LV_INTERFACE,
-					'Exit code %s, stderr = %s' % (str(rc), err))
-		else:
-			raise dbus.exceptions.DBusException(
-				LV_INTERFACE, 'LV to cache with object path %s not present!' %
-				lv_object_path)
-		return lv_converted
-
-	@dbus.service.method(
-		dbus_interface=LV_INTERFACE,
-		in_signature='oia{sv}',
-		out_signature='(oo)',
-		async_callbacks=('cb', 'cbe'))
-	def WriteCacheLv(self, lv_object, tmo, cache_options, cb, cbe):
-		r = RequestEntry(
-			tmo, Lv._writecache_lv,
-			(self.Uuid, self.lvm_id, lv_object,
-			cache_options), cb, cbe)
-		cfg.worker_q.put(r)
-
-
-# noinspection PyPep8Naming
-@utils.dbus_property(VDO_POOL_INTERFACE, 'OperatingMode', 's')
-@utils.dbus_property(VDO_POOL_INTERFACE, 'CompressionState', 's')
-@utils.dbus_property(VDO_POOL_INTERFACE, 'IndexState', 's')
-@utils.dbus_property(VDO_POOL_INTERFACE, 'UsedSize', 't')
-@utils.dbus_property(VDO_POOL_INTERFACE, 'SavingPercent', 'd')
-@utils.dbus_property(VDO_POOL_INTERFACE, 'Compression', 's')
-@utils.dbus_property(VDO_POOL_INTERFACE, 'Deduplication', 's')
-@utils.dbus_property(VDO_POOL_INTERFACE, 'UseMetadataHints', 's')
-@utils.dbus_property(VDO_POOL_INTERFACE, 'MinimumIoSize', 'u')
-@utils.dbus_property(VDO_POOL_INTERFACE, 'BlockMapCacheSize', "t")
-@utils.dbus_property(VDO_POOL_INTERFACE, 'BlockMapEraLength', 'u')
-@utils.dbus_property(VDO_POOL_INTERFACE, 'UseSparseIndex', 's')
-@utils.dbus_property(VDO_POOL_INTERFACE, 'IndexMemorySize', 't')
-@utils.dbus_property(VDO_POOL_INTERFACE, 'SlabSize', 't')
-@utils.dbus_property(VDO_POOL_INTERFACE, 'AckThreads', 'u')
-@utils.dbus_property(VDO_POOL_INTERFACE, 'BioThreads', 'u')
-@utils.dbus_property(VDO_POOL_INTERFACE, 'BioRotation', 'u')
-@utils.dbus_property(VDO_POOL_INTERFACE, 'CpuThreads', 'u')
-@utils.dbus_property(VDO_POOL_INTERFACE, 'HashZoneThreads', 'u')
-@utils.dbus_property(VDO_POOL_INTERFACE, 'LogicalThreads', 'u')
-@utils.dbus_property(VDO_POOL_INTERFACE, 'PhysicalThreads', 'u')
-@utils.dbus_property(VDO_POOL_INTERFACE, 'MaxDiscard', 'u')
-@utils.dbus_property(VDO_POOL_INTERFACE, 'WritePolicy', 's')
-@utils.dbus_property(VDO_POOL_INTERFACE, 'HeaderSize', 'u')
-class LvVdoPool(Lv):
-	_DataLv_meta = ("o", VDO_POOL_INTERFACE)
-
-	def __init__(self, object_path, object_state):
-		super(LvVdoPool, self).__init__(object_path, object_state)
-		self.set_interface(VDO_POOL_INTERFACE)
-		self._data_lv, _ = self._get_data_meta()
-
-	@property
-	def DataLv(self):
-		return dbus.ObjectPath(self._data_lv)
-
-	@staticmethod
-	def _enable_disable_compression(pool_uuid, pool_name, enable, comp_options):
-		# Make sure we have a dbus object representing it
-		LvCommon.validate_dbus_object(pool_uuid, pool_name)
-		# Rename the logical volume
-		LvCommon.handle_execute(*cmdhandler.lv_vdo_compression(
-			pool_name, enable, comp_options))
-		return '/'
-
-	@dbus.service.method(
-		dbus_interface=VDO_POOL_INTERFACE,
-		in_signature='ia{sv}',
-		out_signature='o',
-		async_callbacks=('cb', 'cbe'))
-	def EnableCompression(self, tmo, comp_options, cb, cbe):
-		r = RequestEntry(
-			tmo, LvVdoPool._enable_disable_compression,
-			(self.Uuid, self.lvm_id, True, comp_options),
-			cb, cbe, False)
-		cfg.worker_q.put(r)
-
-	@dbus.service.method(
-	dbus_interface=VDO_POOL_INTERFACE,
-	in_signature='ia{sv}',
-	out_signature='o',
-	async_callbacks=('cb', 'cbe'))
-	def DisableCompression(self, tmo, comp_options, cb, cbe):
-		r = RequestEntry(
-			tmo, LvVdoPool._enable_disable_compression,
-			(self.Uuid, self.lvm_id, False, comp_options),
-			cb, cbe, False)
-		cfg.worker_q.put(r)
-
-	@staticmethod
-	def _enable_disable_deduplication(pool_uuid, pool_name, enable, dedup_options):
-		# Make sure we have a dbus object representing it
-		LvCommon.validate_dbus_object(pool_uuid, pool_name)
-		# Rename the logical volume
-		LvCommon.handle_execute(*cmdhandler.lv_vdo_deduplication(
-			pool_name, enable, dedup_options))
-		return '/'
-
-	@dbus.service.method(
-		dbus_interface=VDO_POOL_INTERFACE,
-		in_signature='ia{sv}',
-		out_signature='o',
-		async_callbacks=('cb', 'cbe'))
-	def EnableDeduplication(self, tmo, dedup_options, cb, cbe):
-		r = RequestEntry(
-			tmo, LvVdoPool._enable_disable_deduplication,
-			(self.Uuid, self.lvm_id, True, dedup_options),
-			cb, cbe, False)
-		cfg.worker_q.put(r)
-
-	@dbus.service.method(
-	dbus_interface=VDO_POOL_INTERFACE,
-	in_signature='ia{sv}',
-	out_signature='o',
-	async_callbacks=('cb', 'cbe'))
-	def DisableDeduplication(self, tmo, dedup_options, cb, cbe):
-		r = RequestEntry(
-			tmo, LvVdoPool._enable_disable_deduplication,
-			(self.Uuid, self.lvm_id, False, dedup_options),
-			cb, cbe, False)
-		cfg.worker_q.put(r)
-
 
 # noinspection PyPep8Naming
 class LvThinPool(Lv):
@@ -912,8 +678,10 @@ class LvThinPool(Lv):
 	def _lv_create(lv_uuid, lv_name, name, size_bytes, create_options):
 		# Make sure we have a dbus object representing it
 		dbo = LvCommon.validate_dbus_object(lv_uuid, lv_name)
-		LvCommon.handle_execute(*cmdhandler.lv_lv_create(
+
-			lv_name, create_options, name, size_bytes))
+		rc, out, err = cmdhandler.lv_lv_create(
+			lv_name, create_options, name, size_bytes)
+		LvCommon.handle_execute(rc, out, err)
 		full_name = "%s/%s" % (dbo.vg_name_lookup(), name)
 		return cfg.om.get_object_path_by_lvm_id(full_name)
 

daemons/lvmdbusd/lvm_shell_proxy.py.in

@@ -13,6 +13,7 @@
 
 import subprocess
 import shlex
+from fcntl import fcntl, F_GETFL, F_SETFL
 import os
 import traceback
 import sys
@@ -28,8 +29,7 @@ except ImportError:
 
 
 from lvmdbusd.cfg import LVM_CMD
-from lvmdbusd.utils import log_debug, log_error, add_no_notify, make_non_block,\
+from lvmdbusd.utils import log_debug, log_error, add_no_notify
-							read_decoded
 
 SHELL_PROMPT = "lvm> "
 
@@ -43,6 +43,13 @@ def _quote_arg(arg):
 
 class LVMShellProxy(object):
 
+	@staticmethod
+	def _read(stream):
+		tmp = stream.read()
+		if tmp:
+			return tmp.decode("utf-8")
+		return ''
+
 	# Read until we get prompt back and a result
 	# @param: no_output	Caller expects no output to report FD
 	# Returns stdout, report, stderr (report is JSON!)
@@ -68,11 +75,11 @@ class LVMShellProxy(object):
 
 				for r in ready[0]:
 					if r == self.lvm_shell.stdout.fileno():
-						stdout += read_decoded(self.lvm_shell.stdout)
+						stdout += LVMShellProxy._read(self.lvm_shell.stdout)
 					elif r == self.report_stream.fileno():
-						report += read_decoded(self.report_stream)
+						report += LVMShellProxy._read(self.report_stream)
 					elif r == self.lvm_shell.stderr.fileno():
-						stderr += read_decoded(self.lvm_shell.stderr)
+						stderr += LVMShellProxy._read(self.lvm_shell.stderr)
 
 				# Check to see if the lvm process died on us
 				if self.lvm_shell.poll():
@@ -117,6 +124,11 @@ class LVMShellProxy(object):
 		assert (num_written == len(cmd_bytes))
 		self.lvm_shell.stdin.flush()
 
+	@staticmethod
+	def _make_non_block(stream):
+		flags = fcntl(stream, F_GETFL)
+		fcntl(stream, F_SETFL, flags | os.O_NONBLOCK)
+
 	def __init__(self):
 
 		# Create a temp directory
@@ -150,8 +162,8 @@ class LVMShellProxy(object):
 			stderr=subprocess.PIPE, close_fds=True, shell=True)
 
 		try:
-			make_non_block(self.lvm_shell.stdout)
+			LVMShellProxy._make_non_block(self.lvm_shell.stdout)
-			make_non_block(self.lvm_shell.stderr)
+			LVMShellProxy._make_non_block(self.lvm_shell.stderr)
 
 			# wait for the first prompt
 			errors = self._read_until_prompt(no_output=True)[2]
@@ -208,10 +220,7 @@ class LVMShellProxy(object):
 
 		# Parse the report to see what happened
 		if 'log' in report_json:
-			ret_code = int(report_json['log'][-1:][0]['log_ret_code'])
+			if report_json['log'][-1:][0]['log_ret_code'] == '1':
-			# If we have an exported vg we get a log_ret_code == 5 when
-			# we do a 'fullreport'
-			if (ret_code == 1) or (ret_code == 5 and argv[0] == 'fullreport'):
 				rc = 0
 			else:
 				error_msg = self.get_error_msg()

daemons/lvmdbusd/lvmdb.py.in

@@ -20,7 +20,7 @@ from lvmdbusd.utils import log_debug, log_error
 
 
 class DataStore(object):
-	def __init__(self, usejson=True, vdo_support=False):
+	def __init__(self, usejson=True):
 		self.pvs = {}
 		self.vgs = {}
 		self.lvs = {}
@@ -43,8 +43,6 @@ class DataStore(object):
 		else:
 			self.json = usejson
 
-		self.vdo_support = vdo_support
-
 	@staticmethod
 	def _insert_record(table, key, record, allowed_multiple):
 		if key in table:
@@ -143,22 +141,13 @@ class DataStore(object):
 
 	@staticmethod
 	def _parse_vgs(_vgs):
-		vgs = sorted(_vgs, key=lambda vk: vk['vg_uuid'])
+		vgs = sorted(_vgs, key=lambda vk: vk['vg_name'])
 
 		c_vgs = OrderedDict()
 		c_lookup = {}
 
 		for i in vgs:
-			vg_name = i['vg_name']
+			c_lookup[i['vg_name']] = i['vg_uuid']
-
-			# Lvm allows duplicate vg names.  When this occurs, each subsequent
-			# matching VG name will be called vg_name:vg_uuid.  Note: ':' is an
-			# invalid character for lvm VG names
-			if vg_name in c_lookup:
-				vg_name = "%s:%s" % (vg_name, i['vg_uuid'])
-				i['vg_name'] = vg_name
-
-			c_lookup[vg_name] = i['vg_uuid']
 			DataStore._insert_record(c_vgs, i['vg_uuid'], i, [])
 
 		return c_vgs, c_lookup
@@ -173,22 +162,13 @@ class DataStore(object):
 				tmp_vg.extend(r['vg'])
 
 		# Sort for consistent output, however this is optional
-		vgs = sorted(tmp_vg, key=lambda vk: vk['vg_uuid'])
+		vgs = sorted(tmp_vg, key=lambda vk: vk['vg_name'])
 
 		c_vgs = OrderedDict()
 		c_lookup = {}
 
 		for i in vgs:
-			vg_name = i['vg_name']
+			c_lookup[i['vg_name']] = i['vg_uuid']
-
-			# Lvm allows duplicate vg names.  When this occurs, each subsequent
-			# matching VG name will be called vg_name:vg_uuid.  Note: ':' is an
-			# invalid character for lvm VG names
-			if vg_name in c_lookup:
-				vg_name = "%s:%s" % (vg_name, i['vg_uuid'])
-				i['vg_name'] = vg_name
-
-			c_lookup[vg_name] = i['vg_uuid']
 			c_vgs[i['vg_uuid']] = i
 
 		return c_vgs, c_lookup
@@ -243,7 +223,8 @@ class DataStore(object):
 
 		return DataStore._parse_lvs_common(c_lvs, c_lv_full_lookup)
 
-	def _parse_lvs_json(self, _all):
+	@staticmethod
+	def _parse_lvs_json(_all):
 
 		c_lvs = OrderedDict()
 		c_lv_full_lookup = {}
@@ -263,13 +244,8 @@ class DataStore(object):
 				if 'seg' in r:
 					for s in r['seg']:
 						r = c_lvs[s['lv_uuid']]
-						r.setdefault('seg_pe_ranges', []).\
+						r.setdefault('seg_pe_ranges', []).append(s['seg_pe_ranges'])
-							append(s['seg_pe_ranges'])
 						r.setdefault('segtype', []).append(s['segtype'])
-						if self.vdo_support:
-							for seg_key, seg_val in s.items():
-								if seg_key.startswith("vdo_"):
-									r[seg_key] = seg_val
 
 		return DataStore._parse_lvs_common(c_lvs, c_lv_full_lookup)
 
@@ -545,10 +521,6 @@ if __name__ == "__main__":
 	for v in ds.vgs.values():
 		pp.pprint(v)
 
-	print("VG name to UUID")
-	for k, v in ds.vg_name_to_uuid.items():
-		print("%s: %s" % (k, v))
-
 	print("LVS")
 	for v in ds.lvs.values():
 		pp.pprint(v)

daemons/lvmdbusd/main.py

@@ -29,7 +29,7 @@ from .utils import log_debug, log_error
 import argparse
 import os
 import sys
-from .cmdhandler import LvmFlightRecorder, supports_vdo
+from .cmdhandler import LvmFlightRecorder
 from .request import RequestEntry
 
 
@@ -44,10 +44,10 @@ def process_request():
 		try:
 			req = cfg.worker_q.get(True, 5)
 			log_debug(
-				"Method start: %s with args %s (callback = %s)" %
+				"Running method: %s with args %s" %
-				(str(req.method), str(req.arguments), str(req.cb)))
+				(str(req.method), str(req.arguments)))
 			req.run_cmd()
-			log_debug("Method complete: %s" % str(req.method))
+			log_debug("Method complete ")
 		except queue.Empty:
 			pass
 		except Exception:
@@ -127,14 +127,6 @@ def main():
 		log_error("You cannot specify --lvmshell and --nojson")
 		sys.exit(1)
 
-	# We will dynamically add interfaces which support vdo if it
-	# exists.
-	cfg.vdo_support = supports_vdo()
-
-	if cfg.vdo_support and not cfg.args.use_json:
-		log_error("You cannot specify --nojson when lvm has VDO support")
-		sys.exit(1)
-
 	# List of threads that we start up
 	thread_list = []
 
@@ -155,12 +147,12 @@ def main():
 	cfg.om = Lvm(BASE_OBJ_PATH)
 	cfg.om.register_object(Manager(MANAGER_OBJ_PATH))
 
-	cfg.db = lvmdb.DataStore(cfg.args.use_json, cfg.vdo_support)
+	cfg.db = lvmdb.DataStore(cfg.args.use_json)
 
 	# Using a thread to process requests, we cannot hang the dbus library
 	# thread that is handling the dbus interface
-	thread_list.append(
+	thread_list.append(threading.Thread(target=process_request,
-		threading.Thread(target=process_request, name='process_request'))
+										name='process_request'))
 
 	# Have a single thread handling updating lvm and the dbus model so we
 	# don't have multiple threads doing this as the same time

daemons/lvmdbusd/manager.py

@@ -27,7 +27,7 @@ class Manager(AutomatedProperties):
 
 	@property
 	def Version(self):
-		return dbus.String('1.1.0')
+		return dbus.String('1.0.0')
 
 	@staticmethod
 	def handle_execute(rc, out, err):
@@ -107,10 +107,10 @@ class Manager(AutomatedProperties):
 		rc = cfg.load(log=False)
 
 		if rc != 0:
-			utils.log_debug('Manager.Refresh - exit %d %d' % (rc, lc),
+			utils.log_debug('Manager.Refresh - exit %d' % (rc),
 							'bg_black', 'fg_light_red')
 		else:
-			utils.log_debug('Manager.Refresh - exit %d %d' % (rc, lc))
+			utils.log_debug('Manager.Refresh - exit %d' % (rc))
 		return rc + lc
 
 	@dbus.service.method(
@@ -164,8 +164,6 @@ class Manager(AutomatedProperties):
 		return the object path in O(1) time.
 
 		:param key: The lookup value
-		:param cb:	dbus python call back parameter, not client visible
-		:param cbe:	dbus python error call back parameter, not client visible
 		:return: Return the object path.  If object not found you will get '/'
 		"""
 		r = RequestEntry(-1, Manager._lookup_by_lvm_id, (key,), cb, cbe, False)

daemons/lvmdbusd/objectmanager.py

@@ -189,8 +189,8 @@ class ObjectManager(AutomatedProperties):
 			path = dbus_object.dbus_object_path()
 			interfaces = dbus_object.interface()
 
-			# print('UN-Registering object path %s for %s' %
+			# print 'UN-Registering object path %s for %s' % \
-			#		(path, dbus_object.lvm_id))
+			#      (path, dbus_object.lvm_id)
 
 			self._lookup_remove(path)
 
@@ -240,17 +240,37 @@ class ObjectManager(AutomatedProperties):
 				return lookup_rc
 			return '/'
 
-	def _id_verify(self, path, uuid, lvm_id):
+	def _uuid_verify(self, path, uuid, lvm_id):
 		"""
-		Ensure our lookups are correct
+		Ensure uuid is present for a successful lvm_id lookup
 		NOTE: Internal call, assumes under object manager lock
 		:param path: 		Path to object we looked up
-		:param uuid: 		uuid lookup
+		:param uuid: 		lvm uuid to verify
-		:param lvm_id:		lvm_id lookup
+		:param lvm_id:		lvm_id used to find object
 		:return: None
 		"""
-		# There is no durable non-changeable name in lvm
+		# This gets called when we found an object based on lvm_id, ensure
+		# uuid is correct too, as they can change. There is no durable
+		# non-changeable name in lvm
 		if lvm_id != uuid:
+			if uuid and uuid not in self._id_to_object_path:
+				obj = self.get_object_by_path(path)
+				self._lookup_add(obj, path, lvm_id, uuid)
+
+	def _lvm_id_verify(self, path, uuid, lvm_id):
+		"""
+		Ensure lvm_id is present for a successful uuid lookup
+		NOTE: Internal call, assumes under object manager lock
+		:param path: 		Path to object we looked up
+		:param uuid: 		uuid used to find object
+		:param lvm_id:		lvm_id to verify
+		:return: None
+		"""
+		# This gets called when we found an object based on uuid, ensure
+		# lvm_id is correct too, as they can change.  There is no durable
+		# non-changeable name in lvm
+		if lvm_id != uuid:
+			if lvm_id and lvm_id not in self._id_to_object_path:
 				obj = self.get_object_by_path(path)
 				self._lookup_add(obj, path, lvm_id, uuid)
 
@@ -319,22 +339,22 @@ class ObjectManager(AutomatedProperties):
 				# Lets check for the uuid first
 				path = self._id_lookup(uuid)
 				if path:
-					# Ensure table lookups are correct
+					# Verify the lvm_id is sane
-					self._id_verify(path, uuid, lvm_id)
+					self._lvm_id_verify(path, uuid, lvm_id)
 				else:
 					# Unable to find by UUID, lets lookup by lvm_id
 					path = self._id_lookup(lvm_id)
 					if path:
-						# Ensure table lookups are correct
+						# Verify the uuid is sane
-						self._id_verify(path, uuid, lvm_id)
+						self._uuid_verify(path, uuid, lvm_id)
 					else:
 						# We have exhausted all lookups, let's create if we can
 						if path_create:
 							path = path_create()
 							self._lookup_add(None, path, lvm_id, uuid)
 
-			# print('get_object_path_by_lvm_id(%s, %s, %s): return %s' %
+			# print('get_object_path_by_lvm_id(%s, %s, %s, %s: return %s' %
-			#	(uuid, lvm_id, str(path_create), path))
+			# 	   (uuid, lvm_id, str(path_create), str(gen_new), path))
 
 			return path
 

daemons/lvmdbusd/pv.py

@@ -14,7 +14,7 @@ import dbus
 from .cfg import PV_INTERFACE
 from . import cmdhandler
 from .utils import vg_obj_path_generate, n, pv_obj_path_generate, \
-	lv_object_path_method, _handle_execute
+	lv_object_path_method
 from .loader import common
 from .request import RequestEntry
 from .state import State
@@ -138,12 +138,19 @@ class Pv(AutomatedProperties):
 		# Remove the PV, if successful then remove from the model
 		# Make sure we have a dbus object representing it
 		Pv.validate_dbus_object(pv_uuid, pv_name)
-		Pv.handle_execute(*cmdhandler.pv_remove(pv_name, remove_options))
+		rc, out, err = cmdhandler.pv_remove(pv_name, remove_options)
+		Pv.handle_execute(rc, out, err)
 		return '/'
 
 	@staticmethod
 	def handle_execute(rc, out, err):
-		return _handle_execute(rc, out, err, PV_INTERFACE)
+		if rc == 0:
+			cfg.load()
+		else:
+			# Need to work on error handling, need consistent
+			raise dbus.exceptions.DBusException(
+				PV_INTERFACE,
+				'Exit code %s, stderr = %s' % (str(rc), err))
 
 	@staticmethod
 	def validate_dbus_object(pv_uuid, pv_name):
@@ -171,8 +178,10 @@ class Pv(AutomatedProperties):
 	def _resize(pv_uuid, pv_name, new_size_bytes, resize_options):
 		# Make sure we have a dbus object representing it
 		Pv.validate_dbus_object(pv_uuid, pv_name)
-		Pv.handle_execute(*cmdhandler.pv_resize(pv_name, new_size_bytes,
+
-												resize_options))
+		rc, out, err = cmdhandler.pv_resize(pv_name, new_size_bytes,
+												resize_options)
+		Pv.handle_execute(rc, out, err)
 		return '/'
 
 	@dbus.service.method(
@@ -191,8 +200,9 @@ class Pv(AutomatedProperties):
 	def _allocation_enabled(pv_uuid, pv_name, yes_no, allocation_options):
 		# Make sure we have a dbus object representing it
 		Pv.validate_dbus_object(pv_uuid, pv_name)
-		Pv.handle_execute(*cmdhandler.pv_allocatable(pv_name, yes_no,
+		rc, out, err = cmdhandler.pv_allocatable(
-														allocation_options))
+			pv_name, yes_no, allocation_options)
+		Pv.handle_execute(rc, out, err)
 		return '/'
 
 	@dbus.service.method(

daemons/lvmdbusd/udevwatch.py

@@ -52,8 +52,8 @@ def filter_event(action, device):
 	# when appropriate.
 	refresh = False
 
-	if 'ID_FS_TYPE' in device:
+	if '.ID_FS_TYPE_NEW' in device:
-		fs_type_new = device['ID_FS_TYPE']
+		fs_type_new = device['.ID_FS_TYPE_NEW']
 
 		if 'LVM' in fs_type_new:
 			refresh = True

daemons/lvmdbusd/utils.py

@@ -14,7 +14,6 @@ import ctypes
 import os
 import string
 import datetime
-from fcntl import fcntl, F_GETFL, F_SETFL
 
 import dbus
 from lvmdbusd import cfg
@@ -27,15 +26,6 @@ import signal
 STDOUT_TTY = os.isatty(sys.stdout.fileno())
 
 
-def _handle_execute(rc, out, err, interface):
-	if rc == 0:
-		cfg.load()
-	else:
-		# Need to work on error handling, need consistent
-		raise dbus.exceptions.DBusException(
-			interface, 'Exit code %s, stderr = %s' % (str(rc), err))
-
-
 def rtype(dbus_type):
 	"""
 	Decorator making sure that the decorated function returns a value of
@@ -67,20 +57,8 @@ def n32(v):
 	return int(float(v))
 
 
-@rtype(dbus.Double)
-def d(v):
-	if not v:
-		return 0.0
-	return float(v)
-
-
-def _snake_to_pascal(s):
-	return ''.join(x.title() for x in s.split('_'))
-
-
 # noinspection PyProtectedMember
-def init_class_from_arguments(
+def init_class_from_arguments(obj_instance):
-		obj_instance, begin_suffix=None, snake_to_pascal=False):
 	for k, v in list(sys._getframe(1).f_locals.items()):
 		if k != 'self':
 			nt = k
@@ -91,16 +69,7 @@ def init_class_from_arguments(
 			cur = getattr(obj_instance, nt, v)
 
 			# print 'Init class %s = %s' % (nt, str(v))
-			if not (cur and len(str(cur)) and (v is None or len(str(v))) == 0)\
+			if not (cur and len(str(cur)) and (v is None or len(str(v))) == 0):
-					and (begin_suffix is None or nt.startswith(begin_suffix)):
-
-				if begin_suffix and nt.startswith(begin_suffix):
-					name = nt[len(begin_suffix):]
-					if snake_to_pascal:
-						name = _snake_to_pascal(name)
-
-					setattr(obj_instance, name, v)
-				else:
 				setattr(obj_instance, nt, v)
 
 
@@ -369,8 +338,6 @@ def lv_object_path_method(name, meta):
 		return _hidden_lv_obj_path_generate
 	elif meta[0][0] == 't':
 		return _thin_pool_obj_path_generate
-	elif meta[0][0] == 'd':
-		return _vdo_pool_object_path_generate
 	elif meta[0][0] == 'C' and 'pool' in meta[1]:
 		return _cache_pool_obj_path_generate
 
@@ -388,10 +355,6 @@ def _thin_pool_obj_path_generate():
 	return cfg.THIN_POOL_PATH + "/%d" % next(cfg.thin_id)
 
 
-def _vdo_pool_object_path_generate():
-	return cfg.VDO_POOL_PATH + "/%d" % next(cfg.vdo_id)
-
-
 def _cache_pool_obj_path_generate():
 	return cfg.CACHE_POOL_PATH + "/%d" % next(cfg.cache_pool_id)
 
@@ -483,7 +446,7 @@ _ALLOWABLE_CH_SET = set(_ALLOWABLE_CH)
 _ALLOWABLE_VG_LV_CH = string.ascii_letters + string.digits + '.-_+'
 _ALLOWABLE_VG_LV_CH_SET = set(_ALLOWABLE_VG_LV_CH)
 _LV_NAME_RESERVED = ("_cdata", "_cmeta", "_corig", "_mimage", "_mlog",
-	"_pmspare", "_rimage", "_rmeta", "_tdata", "_tmeta", "_vorigin", "_vdata")
+	"_pmspare", "_rimage", "_rmeta", "_tdata", "_tmeta", "_vorigin")
 
 # Tags can have the characters, based on the code
 # a-zA-Z0-9._-+/=!:&#
@@ -682,16 +645,3 @@ def _remove_objects(dbus_objects_rm):
 # Remove dbus objects from main thread
 def mt_remove_dbus_objects(objs):
 	MThreadRunner(_remove_objects, objs).done()
-
-
-# Make stream non-blocking
-def make_non_block(stream):
-	flags = fcntl(stream, F_GETFL)
-	fcntl(stream, F_SETFL, flags | os.O_NONBLOCK)
-
-
-def read_decoded(stream):
-	tmp = stream.read()
-	if tmp:
-		return tmp.decode("utf-8")
-	return ''

daemons/lvmdbusd/vg.py

@@ -10,11 +10,10 @@
 from .automatedproperties import AutomatedProperties
 
 from . import utils
-from .utils import pv_obj_path_generate, vg_obj_path_generate, n, \
+from .utils import pv_obj_path_generate, vg_obj_path_generate, n
-	_handle_execute
 import dbus
 from . import cfg
-from .cfg import VG_INTERFACE, VG_VDO_INTERFACE
+from .cfg import VG_INTERFACE
 from . import cmdhandler
 from .request import RequestEntry
 from .loader import common
@@ -47,29 +46,24 @@ def vgs_state_retrieve(selection, cache_refresh=True):
 
 def load_vgs(vg_specific=None, object_path=None, refresh=False,
 		emit_signal=False, cache_refresh=True):
-	return common(vgs_state_retrieve, (Vg, VgVdo, ), vg_specific, object_path, refresh,
+	return common(vgs_state_retrieve, (Vg,), vg_specific, object_path, refresh,
 					emit_signal, cache_refresh)
 
 
 # noinspection PyPep8Naming,PyUnresolvedReferences,PyUnusedLocal
 class VgState(State):
-
-	@property
-	def internal_name(self):
-		return self.Name
-
 	@property
 	def lvm_id(self):
-		return self.internal_name
+		return self.Name
 
 	def identifiers(self):
-		return (self.Uuid, self.internal_name)
+		return (self.Uuid, self.Name)
 
 	def _lv_paths_build(self):
 		rc = []
 		for lv in cfg.db.lvs_in_vg(self.Uuid):
 			(lv_name, meta, lv_uuid) = lv
-			full_name = "%s/%s" % (self.internal_name, lv_name)
+			full_name = "%s/%s" % (self.Name, lv_name)
 
 			gen = utils.lv_object_path_method(lv_name, meta)
 
@@ -98,11 +92,7 @@ class VgState(State):
 	def create_dbus_object(self, path):
 		if not path:
 			path = cfg.om.get_object_path_by_uuid_lvm_id(
-				self.Uuid, self.internal_name, vg_obj_path_generate)
+				self.Uuid, self.Name, vg_obj_path_generate)
-
-		if cfg.vdo_support:
-			return VgVdo(path, self)
-		else:
 		return Vg(path, self)
 
 	# noinspection PyMethodMayBeStatic
@@ -112,6 +102,7 @@ class VgState(State):
 
 # noinspection PyPep8Naming
 @utils.dbus_property(VG_INTERFACE, 'Uuid', 's')
+@utils.dbus_property(VG_INTERFACE, 'Name', 's')
 @utils.dbus_property(VG_INTERFACE, 'Fmt', 's')
 @utils.dbus_property(VG_INTERFACE, 'SizeBytes', 't', 0)
 @utils.dbus_property(VG_INTERFACE, 'FreeBytes', 't', 0)
@@ -144,7 +135,6 @@ class Vg(AutomatedProperties):
 	_AllocNormal_meta = ('b', VG_INTERFACE)
 	_AllocAnywhere_meta = ('b', VG_INTERFACE)
 	_Clustered_meta = ('b', VG_INTERFACE)
-	_Name_meta = ('s', VG_INTERFACE)
 
 	# noinspection PyUnusedLocal,PyPep8Naming
 	def __init__(self, object_path, object_state):
@@ -159,7 +149,13 @@ class Vg(AutomatedProperties):
 
 	@staticmethod
 	def handle_execute(rc, out, err):
-		return _handle_execute(rc, out, err, VG_INTERFACE)
+		if rc == 0:
+			cfg.load()
+		else:
+			# Need to work on error handling, need consistent
+			raise dbus.exceptions.DBusException(
+				VG_INTERFACE,
+				'Exit code %s, stderr = %s' % (str(rc), err))
 
 	@staticmethod
 	def validate_dbus_object(vg_uuid, vg_name):
@@ -175,8 +171,9 @@ class Vg(AutomatedProperties):
 	def _rename(uuid, vg_name, new_name, rename_options):
 		# Make sure we have a dbus object representing it
 		Vg.validate_dbus_object(uuid, vg_name)
-		Vg.handle_execute(*cmdhandler.vg_rename(
+		rc, out, err = cmdhandler.vg_rename(
-			uuid, new_name, rename_options))
+			vg_name, new_name, rename_options)
+		Vg.handle_execute(rc, out, err)
 		return '/'
 
 	@dbus.service.method(
@@ -195,7 +192,8 @@ class Vg(AutomatedProperties):
 		# Make sure we have a dbus object representing it
 		Vg.validate_dbus_object(uuid, vg_name)
 		# Remove the VG, if successful then remove from the model
-		Vg.handle_execute(*cmdhandler.vg_remove(vg_name, remove_options))
+		rc, out, err = cmdhandler.vg_remove(vg_name, remove_options)
+		Vg.handle_execute(rc, out, err)
 		return '/'
 
 	@dbus.service.method(
@@ -211,13 +209,14 @@ class Vg(AutomatedProperties):
 	@staticmethod
 	def _change(uuid, vg_name, change_options):
 		Vg.validate_dbus_object(uuid, vg_name)
-		Vg.handle_execute(*cmdhandler.vg_change(change_options, vg_name))
+		rc, out, err = cmdhandler.vg_change(change_options, vg_name)
+		Vg.handle_execute(rc, out, err)
 		return '/'
 
 	# TODO: This should be broken into a number of different methods
 	# instead of having one method that takes a hash for parameters.  Some of
 	# the changes that vgchange does works on entire system, not just a
-	# specific vg, thus that should be in the Manager interface.
+	# specfic vg, thus that should be in the Manager interface.
 	@dbus.service.method(
 		dbus_interface=VG_INTERFACE,
 		in_signature='ia{sv}',
@@ -247,8 +246,9 @@ class Vg(AutomatedProperties):
 						VG_INTERFACE,
 						'PV Object path not found = %s!' % pv_op)
 
-		Vg.handle_execute(*cmdhandler.vg_reduce(
+		rc, out, err = cmdhandler.vg_reduce(vg_name, missing, pv_devices,
-			vg_name, missing, pv_devices, reduce_options))
+											reduce_options)
+		Vg.handle_execute(rc, out, err)
 		return '/'
 
 	@dbus.service.method(
@@ -278,8 +278,9 @@ class Vg(AutomatedProperties):
 					VG_INTERFACE, 'PV Object path not found = %s!' % i)
 
 		if len(extend_devices):
-			Vg.handle_execute(*cmdhandler.vg_extend(
+			rc, out, err = cmdhandler.vg_extend(vg_name, extend_devices,
-				vg_name, extend_devices, extend_options))
+												extend_options)
+			Vg.handle_execute(rc, out, err)
 		else:
 			raise dbus.exceptions.DBusException(
 				VG_INTERFACE, 'No pv_object_paths provided!')
@@ -333,8 +334,10 @@ class Vg(AutomatedProperties):
 
 				pv_dests.append((pv_dbus_obj.lvm_id, pr[1], pr[2]))
 
-		Vg.handle_execute(*cmdhandler.vg_lv_create(
+		rc, out, err = cmdhandler.vg_lv_create(
-			vg_name, create_options, name, size_bytes, pv_dests))
+			vg_name, create_options, name, size_bytes, pv_dests)
+
+		Vg.handle_execute(rc, out, err)
 		return Vg.fetch_new_lv(vg_name, name)
 
 	@dbus.service.method(
@@ -372,8 +375,11 @@ class Vg(AutomatedProperties):
 			thin_pool, create_options):
 		# Make sure we have a dbus object representing it
 		Vg.validate_dbus_object(uuid, vg_name)
-		Vg.handle_execute(*cmdhandler.vg_lv_create_linear(
+
-			vg_name, create_options, name, size_bytes, thin_pool))
+		rc, out, err = cmdhandler.vg_lv_create_linear(
+			vg_name, create_options, name, size_bytes, thin_pool)
+
+		Vg.handle_execute(rc, out, err)
 		return Vg.fetch_new_lv(vg_name, name)
 
 	@dbus.service.method(
@@ -395,9 +401,10 @@ class Vg(AutomatedProperties):
 			stripe_size_kb, thin_pool, create_options):
 		# Make sure we have a dbus object representing it
 		Vg.validate_dbus_object(uuid, vg_name)
-		Vg.handle_execute(*cmdhandler.vg_lv_create_striped(
+		rc, out, err = cmdhandler.vg_lv_create_striped(
 			vg_name, create_options, name, size_bytes,
-			num_stripes, stripe_size_kb, thin_pool))
+			num_stripes, stripe_size_kb, thin_pool)
+		Vg.handle_execute(rc, out, err)
 		return Vg.fetch_new_lv(vg_name, name)
 
 	@dbus.service.method(
@@ -422,8 +429,9 @@ class Vg(AutomatedProperties):
 			num_copies, create_options):
 		# Make sure we have a dbus object representing it
 		Vg.validate_dbus_object(uuid, vg_name)
-		Vg.handle_execute(*cmdhandler.vg_lv_create_mirror(
+		rc, out, err = cmdhandler.vg_lv_create_mirror(
-			vg_name, create_options, name, size_bytes, num_copies))
+			vg_name, create_options, name, size_bytes, num_copies)
+		Vg.handle_execute(rc, out, err)
 		return Vg.fetch_new_lv(vg_name, name)
 
 	@dbus.service.method(
@@ -446,9 +454,10 @@ class Vg(AutomatedProperties):
 						num_stripes, stripe_size_kb, create_options):
 		# Make sure we have a dbus object representing it
 		Vg.validate_dbus_object(uuid, vg_name)
-		Vg.handle_execute(*cmdhandler.vg_lv_create_raid(
+		rc, out, err = cmdhandler.vg_lv_create_raid(
 			vg_name, create_options, name, raid_type, size_bytes,
-			num_stripes, stripe_size_kb))
+			num_stripes, stripe_size_kb)
+		Vg.handle_execute(rc, out, err)
 		return Vg.fetch_new_lv(vg_name, name)
 
 	@dbus.service.method(
@@ -546,8 +555,9 @@ class Vg(AutomatedProperties):
 				raise dbus.exceptions.DBusException(
 					VG_INTERFACE, 'PV object path = %s not found' % p)
 
-		Vg.handle_execute(*cmdhandler.pv_tag(
+		rc, out, err = cmdhandler.pv_tag(
-			pv_devices, tags_add, tags_del, tag_options))
+			pv_devices, tags_add, tags_del, tag_options)
+		Vg.handle_execute(rc, out, err)
 		return '/'
 
 	@dbus.service.method(
@@ -588,8 +598,9 @@ class Vg(AutomatedProperties):
 		# Make sure we have a dbus object representing it
 		Vg.validate_dbus_object(uuid, vg_name)
 
-		Vg.handle_execute(*cmdhandler.vg_tag(
+		rc, out, err = cmdhandler.vg_tag(
-			vg_name, tags_add, tags_del, tag_options))
+			vg_name, tags_add, tags_del, tag_options)
+		Vg.handle_execute(rc, out, err)
 		return '/'
 
 	@dbus.service.method(
@@ -628,7 +639,8 @@ class Vg(AutomatedProperties):
 	def _vg_change_set(uuid, vg_name, method, value, options):
 		# Make sure we have a dbus object representing it
 		Vg.validate_dbus_object(uuid, vg_name)
-		Vg.handle_execute(*method(vg_name, value, options))
+		rc, out, err = method(vg_name, value, options)
+		Vg.handle_execute(rc, out, err)
 		return '/'
 
 	@dbus.service.method(
@@ -688,8 +700,9 @@ class Vg(AutomatedProperties):
 								options):
 		# Make sure we have a dbus object representing it
 		Vg.validate_dbus_object(uuid, vg_name)
-		Vg.handle_execute(*cmdhandler.activate_deactivate(
+		rc, out, err = cmdhandler.activate_deactivate(
-			'vgchange', vg_name, activate, control_flags, options))
+			'vgchange', vg_name, activate, control_flags, options)
+		Vg.handle_execute(rc, out, err)
 		return '/'
 
 	@dbus.service.method(
@@ -716,12 +729,6 @@ class Vg(AutomatedProperties):
 				cb, cbe, return_tuple=False)
 		cfg.worker_q.put(r)
 
-	@property
-	def Name(self):
-		if ':' in self.state.Name:
-			return self.state.Name.split(':')[0]
-		return self.state.Name
-
 	@property
 	def Tags(self):
 		return utils.parse_tags(self.state.tags)
@@ -777,71 +784,3 @@ class Vg(AutomatedProperties):
 	@property
 	def Clustered(self):
 		return self._attribute(5, 'c')
-
-
-class VgVdo(Vg):
-
-	# noinspection PyUnusedLocal,PyPep8Naming
-	def __init__(self, object_path, object_state):
-		super(VgVdo, self).__init__(object_path, vgs_state_retrieve)
-		self.set_interface(VG_VDO_INTERFACE)
-		self._object_path = object_path
-		self.state = object_state
-
-	@staticmethod
-	def _lv_vdo_pool_create_with_lv(uuid, vg_name, pool_name, lv_name,
-									data_size, virtual_size, create_options):
-		Vg.validate_dbus_object(uuid, vg_name)
-		Vg.handle_execute(*cmdhandler.vg_create_vdo_pool_lv_and_lv(
-			vg_name, pool_name, lv_name, data_size, virtual_size,
-			create_options))
-		return Vg.fetch_new_lv(vg_name, pool_name)
-
-	@dbus.service.method(
-		dbus_interface=VG_VDO_INTERFACE,
-		in_signature='ssttia{sv}',
-		out_signature='(oo)',
-		async_callbacks=('cb', 'cbe'))
-	def CreateVdoPoolandLv(self, pool_name, lv_name, data_size, virtual_size,
-							tmo, create_options, cb, cbe):
-		utils.validate_lv_name(VG_VDO_INTERFACE, self.Name, pool_name)
-		utils.validate_lv_name(VG_VDO_INTERFACE, self.Name, lv_name)
-
-		r = RequestEntry(tmo, VgVdo._lv_vdo_pool_create_with_lv,
-							(self.state.Uuid, self.state.lvm_id,
-							pool_name, lv_name, round_size(data_size),
-							round_size(virtual_size),
-							create_options), cb, cbe)
-		cfg.worker_q.put(r)
-
-	@staticmethod
-	def _vdo_pool_create(uuid, vg_name, pool_lv, name, virtual_size, create_options):
-		Vg.validate_dbus_object(uuid, vg_name)
-
-		# Retrieve the full name of the pool lv
-		pool = cfg.om.get_object_by_path(pool_lv)
-		if not pool:
-			msg = 'LV with object path %s not present!' % \
-					(pool_lv)
-			raise dbus.exceptions.DBusException(VG_VDO_INTERFACE, msg)
-
-		Vg.handle_execute(*cmdhandler.vg_create_vdo_pool(
-			pool.lv_full_name(), name, virtual_size,
-			create_options))
-		return Vg.fetch_new_lv(vg_name, pool.Name)
-
-	@dbus.service.method(
-		dbus_interface=VG_VDO_INTERFACE,
-		in_signature='ostia{sv}',
-		out_signature='(oo)',
-		async_callbacks=('cb', 'cbe'))
-	def CreateVdoPool(self, pool_lv, name, virtual_size,
-						tmo, create_options, cb, cbe):
-		utils.validate_lv_name(VG_VDO_INTERFACE, self.Name, name)
-
-		r = RequestEntry(tmo, VgVdo._vdo_pool_create,
-							(self.state.Uuid, self.state.lvm_id,
-							pool_lv, name,
-							round_size(virtual_size),
-							create_options), cb, cbe)
-		cfg.worker_q.put(r)

daemons/lvmetad/.gitignore

@@ -0,0 +1,2 @@
+lvmetad
+lvmetactl

daemons/lvmetad/Makefile.in

@@ -0,0 +1,62 @@
+#
+# Copyright (C) 2011-2012 Red Hat, Inc.
+#
+# This file is part of LVM2.
+#
+# This copyrighted material is made available to anyone wishing to use,
+# modify, copy, or redistribute it subject to the terms and conditions
+# of the GNU Lesser General Public License v.2.1.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+top_builddir = @top_builddir@
+
+SOURCES = lvmetad-core.c
+SOURCES2 = lvmetactl.c
+
+TARGETS = lvmetad lvmetactl
+
+.PHONY: install_lvmetad
+
+CFLOW_LIST = $(SOURCES)
+CFLOW_LIST_TARGET = $(LIB_NAME).cflow
+CFLOW_TARGET = lvmetad
+
+include $(top_builddir)/make.tmpl
+
+CFLAGS_lvmetactl.o += $(EXTRA_EXEC_CFLAGS)
+CFLAGS_lvmetad-core.o += $(EXTRA_EXEC_CFLAGS)
+INCLUDES += -I$(top_srcdir)/libdaemon/server
+LDFLAGS += -L$(top_builddir)/libdaemon/server $(EXTRA_EXEC_LDFLAGS) $(ELDFLAGS)
+LIBS += $(RT_LIBS) $(DAEMON_LIBS) -ldevmapper $(PTHREAD_LIBS)
+
+lvmetad: $(OBJECTS) $(top_builddir)/libdaemon/client/libdaemonclient.a \
+		    $(top_builddir)/libdaemon/server/libdaemonserver.a
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJECTS) -ldaemonserver $(LIBS)
+
+lvmetactl: lvmetactl.o $(top_builddir)/libdaemon/client/libdaemonclient.a \
+	$(top_builddir)/libdaemon/server/libdaemonserver.a
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ lvmetactl.o $(LIBS)
+
+CLEAN_TARGETS += lvmetactl.o
+
+# TODO: No idea. No idea how to test either.
+#ifneq ("$(CFLOW_CMD)", "")
+#CFLOW_SOURCES = $(addprefix $(srcdir)/, $(SOURCES))
+#-include $(top_builddir)/libdm/libdevmapper.cflow
+#-include $(top_builddir)/lib/liblvm-internal.cflow
+#-include $(top_builddir)/lib/liblvm2cmd.cflow
+#-include $(top_builddir)/daemons/dmeventd/$(LIB_NAME).cflow
+#-include $(top_builddir)/daemons/dmeventd/plugins/mirror/$(LIB_NAME)-lvm2mirror.cflow
+#endif
+
+install_lvmetad: lvmetad
+	$(INSTALL_PROGRAM) -D $< $(sbindir)/$(<F)
+
+install_lvm2: install_lvmetad
+
+install: install_lvm2

daemons/lvmetad/lvmetactl.c

@@ -0,0 +1,249 @@
+/*
+ * Copyright (C) 2014 Red Hat, Inc.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ */
+
+#include "tool.h"
+
+#include "lvmetad-client.h"
+
+daemon_handle h;
+
+static void print_reply(daemon_reply reply)
+{
+	const char *a = daemon_reply_str(reply, "response", NULL);
+	const char *b = daemon_reply_str(reply, "status", NULL);
+	const char *c = daemon_reply_str(reply, "reason", NULL);
+
+	printf("response \"%s\" status \"%s\" reason \"%s\"\n",
+	       a ? a : "", b ? b : "", c ? c : "");
+}
+
+int main(int argc, char **argv)
+{
+	daemon_reply reply;
+	char *cmd;
+	char *uuid;
+	char *name;
+	int val;
+	int ver;
+
+	if (argc < 2) {
+		printf("lvmetactl dump\n");
+		printf("lvmetactl pv_list\n");
+		printf("lvmetactl vg_list\n");
+		printf("lvmetactl get_global_info\n");
+		printf("lvmetactl vg_lookup_name <name>\n");
+		printf("lvmetactl vg_lookup_uuid <uuid>\n");
+		printf("lvmetactl pv_lookup_uuid <uuid>\n");
+		printf("lvmetactl set_global_invalid 0|1\n");
+		printf("lvmetactl set_global_disable 0|1\n");
+		printf("lvmetactl set_vg_version <uuid> <name> <version>\n");
+		printf("lvmetactl vg_lock_type <uuid>\n");
+		return -1;
+	}
+
+	cmd = argv[1];
+
+	h = lvmetad_open(NULL);
+
+	if (!strcmp(cmd, "dump")) {
+		reply = daemon_send_simple(h, "dump",
+					   "token = %s", "skip",
+					   "pid = " FMTd64, (int64_t)getpid(),
+					   "cmd = %s", "lvmetactl",
+					   NULL);
+		printf("%s\n", reply.buffer.mem);
+
+	} else if (!strcmp(cmd, "pv_list")) {
+		reply = daemon_send_simple(h, "pv_list",
+					   "token = %s", "skip",
+					   "pid = " FMTd64, (int64_t)getpid(),
+					   "cmd = %s", "lvmetactl",
+					   NULL);
+		printf("%s\n", reply.buffer.mem);
+
+	} else if (!strcmp(cmd, "vg_list")) {
+		reply = daemon_send_simple(h, "vg_list",
+					   "token = %s", "skip",
+					   "pid = " FMTd64, (int64_t)getpid(),
+					   "cmd = %s", "lvmetactl",
+					   NULL);
+		printf("%s\n", reply.buffer.mem);
+
+	} else if (!strcmp(cmd, "get_global_info")) {
+		reply = daemon_send_simple(h, "get_global_info",
+					   "token = %s", "skip",
+					   "pid = " FMTd64, (int64_t)getpid(),
+					   "cmd = %s", "lvmetactl",
+					   NULL);
+		printf("%s\n", reply.buffer.mem);
+
+	} else if (!strcmp(cmd, "set_global_invalid")) {
+		if (argc < 3) {
+			printf("set_global_invalid 0|1\n");
+			return -1;
+		}
+		val = atoi(argv[2]);
+
+		reply = daemon_send_simple(h, "set_global_info",
+					   "global_invalid = " FMTd64, (int64_t) val,
+					   "token = %s", "skip",
+					   "pid = " FMTd64, (int64_t)getpid(),
+					   "cmd = %s", "lvmetactl",
+					   NULL);
+		print_reply(reply);
+
+	} else if (!strcmp(cmd, "set_global_disable")) {
+		if (argc < 3) {
+			printf("set_global_disable 0|1\n");
+			return -1;
+		}
+		val = atoi(argv[2]);
+
+		reply = daemon_send_simple(h, "set_global_info",
+					   "global_disable = " FMTd64, (int64_t) val,
+					   "disable_reason = %s", LVMETAD_DISABLE_REASON_DIRECT,
+					   "token = %s", "skip",
+					   "pid = " FMTd64, (int64_t)getpid(),
+					   "cmd = %s", "lvmetactl",
+					   NULL);
+		print_reply(reply);
+
+	} else if (!strcmp(cmd, "set_vg_version")) {
+		if (argc < 5) {
+			printf("set_vg_version <uuid> <name> <ver>\n");
+			return -1;
+		}
+		uuid = argv[2];
+		name = argv[3];
+		ver = atoi(argv[4]);
+
+		if ((strlen(uuid) == 1) && (uuid[0] == '-'))
+			uuid = NULL;
+		if ((strlen(name) == 1) && (name[0] == '-'))
+			name = NULL;
+
+		if (uuid && name) {
+			reply = daemon_send_simple(h, "set_vg_info",
+						   "uuid = %s", uuid,
+						   "name = %s", name,
+						   "version = " FMTd64, (int64_t) ver,
+						   "token = %s", "skip",
+						   "pid = " FMTd64, (int64_t)getpid(),
+						   "cmd = %s", "lvmetactl",
+						   NULL);
+		} else if (uuid) {
+			reply = daemon_send_simple(h, "set_vg_info",
+						   "uuid = %s", uuid,
+						   "version = " FMTd64, (int64_t) ver,
+						   "token = %s", "skip",
+						   "pid = " FMTd64, (int64_t)getpid(),
+						   "cmd = %s", "lvmetactl",
+						   NULL);
+		} else if (name) {
+			reply = daemon_send_simple(h, "set_vg_info",
+						   "name = %s", name,
+						   "version = " FMTd64, (int64_t) ver,
+						   "token = %s", "skip",
+						   "pid = " FMTd64, (int64_t)getpid(),
+						   "cmd = %s", "lvmetactl",
+						   NULL);
+		} else {
+			printf("name or uuid required\n");
+			return -1;
+		}
+
+		print_reply(reply);
+
+	} else if (!strcmp(cmd, "vg_lookup_name")) {
+		if (argc < 3) {
+			printf("vg_lookup_name <name>\n");
+			return -1;
+		}
+		name = argv[2];
+
+		reply = daemon_send_simple(h, "vg_lookup",
+					   "name = %s", name,
+					   "token = %s", "skip",
+					   "pid = " FMTd64, (int64_t)getpid(),
+					   "cmd = %s", "lvmetactl",
+					   NULL);
+		printf("%s\n", reply.buffer.mem);
+
+	} else if (!strcmp(cmd, "vg_lookup_uuid")) {
+		if (argc < 3) {
+			printf("vg_lookup_uuid <uuid>\n");
+			return -1;
+		}
+		uuid = argv[2];
+
+		reply = daemon_send_simple(h, "vg_lookup",
+					   "uuid = %s", uuid,
+					   "token = %s", "skip",
+					   "pid = " FMTd64, (int64_t)getpid(),
+					   "cmd = %s", "lvmetactl",
+					   NULL);
+		printf("%s\n", reply.buffer.mem);
+
+	} else if (!strcmp(cmd, "vg_lock_type")) {
+		struct dm_config_node *metadata;
+		const char *lock_type;
+
+		if (argc < 3) {
+			printf("vg_lock_type <uuid>\n");
+			return -1;
+		}
+		uuid = argv[2];
+
+		reply = daemon_send_simple(h, "vg_lookup",
+					   "uuid = %s", uuid,
+					   "token = %s", "skip",
+					   "pid = " FMTd64, (int64_t)getpid(),
+					   "cmd = %s", "lvmetactl",
+					   NULL);
+		/* printf("%s\n", reply.buffer.mem); */
+
+		metadata = dm_config_find_node(reply.cft->root, "metadata");
+		if (!metadata) {
+			printf("no metadata\n");
+			goto out;
+		}
+
+		lock_type = dm_config_find_str(metadata, "metadata/lock_type", NULL);
+		if (!lock_type) {
+			printf("no lock_type\n");
+			goto out;
+		}
+		printf("lock_type %s\n", lock_type);
+
+	} else if (!strcmp(cmd, "pv_lookup_uuid")) {
+		if (argc < 3) {
+			printf("pv_lookup_uuid <uuid>\n");
+			return -1;
+		}
+		uuid = argv[2];
+
+		reply = daemon_send_simple(h, "pv_lookup",
+					   "uuid = %s", uuid,
+					   "token = %s", "skip",
+					   "pid = " FMTd64, (int64_t)getpid(),
+					   "cmd = %s", "lvmetactl",
+					   NULL);
+		printf("%s\n", reply.buffer.mem);
+
+	} else {
+		printf("unknown command\n");
+		goto out_close;
+	}
+out:
+	daemon_reply_destroy(reply);
+out_close:
+	daemon_close(h);
+	return 0;
+}

daemons/lvmetad/lvmetad-client.h

@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2011-2012 Red Hat, Inc.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef _LVM_LVMETAD_CLIENT_H
+#define _LVM_LVMETAD_CLIENT_H
+
+#include "daemon-client.h"
+
+#define LVMETAD_SOCKET DEFAULT_RUN_DIR "/lvmetad.socket"
+
+#define LVMETAD_TOKEN_UPDATE_IN_PROGRESS "update in progress"
+
+#define LVMETAD_DISABLE_REASON_DIRECT		"DIRECT"
+#define LVMETAD_DISABLE_REASON_DUPLICATES	"DUPLICATES"
+#define LVMETAD_DISABLE_REASON_VGRESTORE	"VGRESTORE"
+#define LVMETAD_DISABLE_REASON_REPAIR		"REPAIR"
+
+struct volume_group;
+
+/* Different types of replies we may get from lvmetad. */
+
+typedef struct {
+	daemon_reply r;
+	const char **uuids; /* NULL terminated array */
+} lvmetad_uuidlist;
+
+typedef struct {
+	daemon_reply r;
+	struct dm_config_tree *cft;
+} lvmetad_vg;
+
+/* Get a list of VG UUIDs that match a given VG name. */
+lvmetad_uuidlist lvmetad_lookup_vgname(daemon_handle h, const char *name);
+
+/* Get the metadata of a single VG, identified by UUID. */
+lvmetad_vg lvmetad_get_vg(daemon_handle h, const char *uuid);
+
+/*
+ * Add and remove PVs on demand. Udev-driven systems will use this interface
+ * instead of scanning.
+ */
+daemon_reply lvmetad_add_pv(daemon_handle h, const char *pv_uuid, const char *mda_content);
+daemon_reply lvmetad_remove_pv(daemon_handle h, const char *pv_uuid);
+
+/* Trigger a full disk scan, throwing away all caches. XXX do we eventually want
+ * this? Probably not yet, anyway.
+ *     daemon_reply lvmetad_rescan(daemon_handle h);
+ */
+
+/*
+ * Update the version of metadata of a volume group. The VG has to be locked for
+ * writing for this, and the VG metadata here has to match whatever has been
+ * written to the disk (under this lock). This initially avoids the requirement
+ * for lvmetad to write to disk (in later revisions, lvmetad_supersede_vg may
+ * also do the writing, or we probably add another function to do that).
+ */
+daemon_reply lvmetad_supersede_vg(daemon_handle h, struct volume_group *vg);
+
+/* Wrappers to open/close connection */
+
+static inline daemon_handle lvmetad_open(const char *socket)
+{
+	daemon_info lvmetad_info = {
+		.path = "lvmetad",
+		.socket = socket ?: LVMETAD_SOCKET,
+		.protocol = "lvmetad",
+		.protocol_version = 1,
+		.autostart = 0
+	};
+
+	return daemon_open(lvmetad_info);
+}
+
+static inline void lvmetad_close(daemon_handle h)
+{
+	return daemon_close(h);
+}
+
+#endif

daemons/lvmetad/test.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+export LD_LIBRARY_PATH="$1"
+
+test -n "$2" && {
+    rm -f /var/run/lvmetad.{socket,pid}
+    chmod +rx lvmetad
+    valgrind ./lvmetad -f &
+    PID=$!
+    sleep 1
+    ./testclient
+    kill $PID
+    exit 0
+}
+
+sudo ./test.sh "$1" .

daemons/lvmetad/testclient.c

@@ -0,0 +1,147 @@
+/*
+ * Copyright (C) 2011-2014 Red Hat, Inc.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU General Public License v.2.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include "tool.h"
+
+#include "lvmetad-client.h"
+#include "label.h"
+#include "lvmcache.h"
+#include "metadata.h"
+
+const char *uuid1 = "abcd-efgh";
+const char *uuid2 = "bbcd-efgh";
+const char *vgid = "yada-yada";
+const char *uuid3 = "cbcd-efgh";
+
+const char *metadata2 = "{\n"
+	"id = \"yada-yada\"\n"
+	"seqno = 15\n"
+	"status = [\"READ\", \"WRITE\"]\n"
+	"flags = []\n"
+	"extent_size = 8192\n"
+	"physical_volumes {\n"
+	"    pv0 {\n"
+	"        id = \"abcd-efgh\"\n"
+	"    }\n"
+	"    pv1 {\n"
+	"        id = \"bbcd-efgh\"\n"
+	"    }\n"
+	"    pv2 {\n"
+	"        id = \"cbcd-efgh\"\n"
+	"    }\n"
+	"}\n"
+	"}\n";
+
+void _handle_reply(daemon_reply reply) {
+	const char *repl = daemon_reply_str(reply, "response", NULL);
+	const char *status = daemon_reply_str(reply, "status", NULL);
+	const char *vgid = daemon_reply_str(reply, "vgid", NULL);
+
+	fprintf(stderr, "[C] REPLY: %s\n", repl);
+	if (!strcmp(repl, "failed"))
+		fprintf(stderr, "[C] REASON: %s\n", daemon_reply_str(reply, "reason", "unknown"));
+	if (vgid)
+		fprintf(stderr, "[C] VGID: %s\n", vgid);
+	if (status)
+		fprintf(stderr, "[C] STATUS: %s\n", status);
+	daemon_reply_destroy(reply);
+}
+
+void _pv_add(daemon_handle h, const char *uuid, const char *metadata)
+{
+	daemon_reply reply = daemon_send_simple(h, "pv_add", "uuid = %s", uuid,
+						             "metadata = %b", metadata,
+						             NULL);
+	_handle_reply(reply);
+}
+
+int scan(daemon_handle h, char *fn) {
+	struct device *dev = dev_cache_get(fn, NULL);
+
+	struct label *label;
+	if (!label_read(dev, &label, 0)) {
+		fprintf(stderr, "[C] no label found on %s\n", fn);
+		return;
+	}
+
+	char uuid[64];
+	if (!id_write_format(dev->pvid, uuid, 64)) {
+		fprintf(stderr, "[C] Failed to format PV UUID for %s", dev_name(dev));
+		return;
+	}
+	fprintf(stderr, "[C] found PV: %s\n", uuid);
+	struct lvmcache_info *info = (struct lvmcache_info *) label->info;
+	struct physical_volume pv = { 0, };
+
+	if (!(info->fmt->ops->pv_read(info->fmt, dev_name(dev), &pv, 0))) {
+		fprintf(stderr, "[C] Failed to read PV %s", dev_name(dev));
+		return;
+	}
+
+	struct format_instance_ctx fic;
+	struct format_instance *fid = info->fmt->ops->create_instance(info->fmt, &fic);
+	struct metadata_area *mda;
+	struct volume_group *vg = NULL;
+	dm_list_iterate_items(mda, &info->mdas) {
+		struct volume_group *this = mda->ops->vg_read(fid, "", mda);
+		if (this && !vg || this->seqno > vg->seqno)
+			vg = this;
+	}
+	if (vg) {
+		char *buf = NULL;
+		/* TODO. This is not entirely correct, since export_vg_to_buffer
+		 * adds trailing garbage to the buffer. We may need to use
+		 * export_vg_to_config_tree and format the buffer ourselves. It
+		 * does, however, work for now, since the garbage is well
+		 * formatted and has no conflicting keys with the rest of the
+		 * request.  */
+		export_vg_to_buffer(vg, &buf);
+		daemon_reply reply =
+			daemon_send_simple(h, "pv_add", "uuid = %s", uuid,
+					      "metadata = %b", strchr(buf, '{'),
+					      NULL);
+		_handle_reply(reply);
+	}
+}
+
+void _dump_vg(daemon_handle h, const char *uuid)
+{
+	daemon_reply reply = daemon_send_simple(h, "vg_by_uuid", "uuid = %s", uuid, NULL);
+	fprintf(stderr, "[C] reply buffer: %s\n", reply.buffer);
+	daemon_reply_destroy(reply);
+}
+
+int main(int argc, char **argv) {
+	daemon_handle h = lvmetad_open();
+	/* FIXME Missing error path */
+
+	if (argc > 1) {
+		int i;
+		struct cmd_context *cmd = create_toolcontext(0, NULL, 0, 0, 1, 1);
+		for (i = 1; i < argc; ++i) {
+			const char *uuid = NULL;
+			scan(h, argv[i]);
+		}
+		destroy_toolcontext(cmd);
+		/* FIXME Missing lvmetad_close() */
+		return 0;
+	}
+
+	_pv_add(h, uuid1, NULL);
+	_pv_add(h, uuid2, metadata2);
+	_dump_vg(h, vgid);
+	_pv_add(h, uuid3, NULL);
+
+	daemon_close(h);	/* FIXME lvmetad_close? */
+	return 0;
+}

daemons/lvmlockd/Makefile.in

@@ -15,8 +15,6 @@ srcdir = @srcdir@
 top_srcdir = @top_srcdir@
 top_builddir = @top_builddir@
 
-USE_SD_NOTIFY=yes
-
 SOURCES = lvmlockd-core.c
 
 ifeq ("@BUILD_LOCKDSANLOCK@", "yes")
@@ -27,50 +25,33 @@ endif
 ifeq ("@BUILD_LOCKDDLM@", "yes")
   SOURCES += lvmlockd-dlm.c
   LOCK_LIBS += -ldlm_lt
-  LOCK_LIBS += -ldlmcontrol
-endif
-
-ifeq ("@BUILD_LOCKDIDM@", "yes")
-  SOURCES += lvmlockd-idm.c
-  LOCK_LIBS += -lseagate_ilm -lblkid
 endif
 
 SOURCES2 = lvmlockctl.c
 
 TARGETS = lvmlockd lvmlockctl
 
-CFLOW_SOURCES = $(addprefix $(srcdir)/, $(SOURCES))
+.PHONY: install_lvmlockd
-CFLOW_TARGET = lvmlockd
-
-.PHONY: install_lvmlockd install_lvmlockctl
 
 include $(top_builddir)/make.tmpl
 
 CFLAGS += $(EXTRA_EXEC_CFLAGS)
 INCLUDES += -I$(top_srcdir)/libdaemon/server
 LDFLAGS += -L$(top_builddir)/libdaemon/server $(EXTRA_EXEC_LDFLAGS) $(ELDFLAGS)
-LIBS += $(DAEMON_LIBS) $(PTHREAD_LIBS)
+LIBS += $(RT_LIBS) $(DAEMON_LIBS) -ldevmapper $(PTHREAD_LIBS)
 
-ifeq ($(USE_SD_NOTIFY),yes)
+lvmlockd: $(OBJECTS) $(top_builddir)/libdaemon/client/libdaemonclient.a \
-	CFLAGS += $(shell pkg-config --cflags libsystemd) -DUSE_SD_NOTIFY
+		    $(top_builddir)/libdaemon/server/libdaemonserver.a
-	LIBS += $(shell pkg-config --libs libsystemd)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJECTS) $(LOCK_LIBS) -ldaemonserver $(LIBS)
-endif
 
-lvmlockd: $(OBJECTS) $(top_builddir)/libdaemon/server/libdaemonserver.a $(INTERNAL_LIBS)
+lvmlockctl: lvmlockctl.o $(top_builddir)/libdaemon/client/libdaemonclient.a
-	@echo "    [CC] $@"
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ lvmlockctl.o $(LIBS)
-	$(Q) $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $+ $(LOCK_LIBS) $(LIBS)
-
-lvmlockctl: lvmlockctl.o $(INTERNAL_LIBS)
-	@echo "    [CC] $@"
-	$(Q) $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $+ $(LIBS)
 
 install_lvmlockd: lvmlockd
-	@echo "    [INSTALL] $<"
+	$(INSTALL_PROGRAM) -D $< $(sbindir)/$(<F)
-	$(Q) $(INSTALL_PROGRAM) -D $< $(sbindir)/$(<F)
 
 install_lvmlockctl: lvmlockctl
-	@echo "    [INSTALL] $<"
+	$(INSTALL_PROGRAM) -D $< $(sbindir)/$(<F)
-	$(Q) $(INSTALL_PROGRAM) -D $< $(sbindir)/$(<F)
 
 install_lvm2: install_lvmlockd install_lvmlockctl
 

daemons/lvmlockd/lvmlockctl.c

@@ -8,9 +8,9 @@
  * of the GNU Lesser General Public License v.2.1.
  */
 
-#include "tools/tool.h"
+#include "tool.h"
 
-#include "daemons/lvmlockd/lvmlockd-client.h"
+#include "lvmlockd-client.h"
 
 #include <stddef.h>
 #include <getopt.h>
@@ -18,22 +18,18 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <syslog.h>
-#include <ctype.h>
 #include <sys/socket.h>
 #include <sys/un.h>
-#include <unistd.h>
-#include <sys/wait.h>
 
 static int quit = 0;
 static int info = 0;
 static int dump = 0;
-static int wait_opt = 1;
+static int wait_opt = 0;
 static int force_opt = 0;
 static int kill_vg = 0;
 static int drop_vg = 0;
 static int gl_enable = 0;
 static int gl_disable = 0;
-static int use_stderr = 0;
 static int stop_lockspaces = 0;
 static char *arg_vg_name = NULL;
 
@@ -51,22 +47,6 @@ do { \
 	printf(fmt "\n", ##args); \
 } while (0)
 
-#define log_sys_emerg(fmt, args...) \
-do { \
-	if (use_stderr) \
-		fprintf(stderr, fmt "\n", ##args); \
-	else \
-		syslog(LOG_EMERG, fmt, ##args); \
-} while (0)
-
-#define log_sys_warn(fmt, args...) \
-do { \
-	if (use_stderr) \
-		fprintf(stderr, fmt "\n", ##args); \
-	else \
-		syslog(LOG_WARNING, fmt, ##args); \
-} while (0)
-
 #define MAX_LINE 512
 
 /* copied from lvmlockd-internal.h */
@@ -300,12 +280,13 @@ static void format_info_line(char *line, char *r_name, char *r_type)
 
 static void format_info(void)
 {
-	char line[MAX_LINE] = { 0 };
+	char line[MAX_LINE];
-	char r_name[MAX_NAME+1] = { 0 };
+	char r_name[MAX_NAME+1];
-	char r_type[MAX_NAME+1] = { 0 };
+	char r_type[MAX_NAME+1];
 	int i, j;
 
 	j = 0;
+	memset(line, 0, sizeof(line));
 
 	for (i = 0; i < dump_len; i++) {
 		line[j++] = dump_buf[i];
@@ -345,8 +326,6 @@ static int _lvmlockd_result(daemon_reply reply, int *result)
 {
 	int reply_result;
 
-	*result = NO_LOCKD_RESULT;
-
 	if (reply.error) {
 		log_error("lvmlockd_result reply error %d", reply.error);
 		return 0;
@@ -358,7 +337,7 @@ static int _lvmlockd_result(daemon_reply reply, int *result)
 	}
 
 	reply_result = daemon_reply_int(reply, "op_result", NO_LOCKD_RESULT);
-	if (reply_result == NO_LOCKD_RESULT) {
+	if (reply_result == -1000) {
 		log_error("lvmlockd_result no op_result");
 		return 0;
 	}
@@ -457,7 +436,6 @@ retry:
 	if (count < dump_len)
 		goto retry;
 
-	dump_buf[count] = 0;
 	rv = 0;
 	if ((info && dump) || !strcmp(req_name, "dump"))
 		printf("%s\n", dump_buf);
@@ -523,274 +501,51 @@ static int do_stop_lockspaces(void)
 	return rv;
 }
 
-static int _reopen_fd_to_null(int fd)
+static int do_kill(void)
 {
-	int null_fd;
+	daemon_reply reply;
-	int r = 0;
+	int result;
-
-	if ((null_fd = open("/dev/null", O_RDWR)) == -1) {
-		log_error("open error /dev/null %d", errno);
-		return 0;
-	}
-
-	if (close(fd)) {
-		log_error("close error fd %d %d", fd, errno);
-		goto out;
-	}
-
-	if (dup2(null_fd, fd) == -1) {
-		log_error("dup2 error %d", errno);
-		goto out;
-	}
-
-	r = 1;
-out:
-	if (close(null_fd)) {
-		log_error("close error fd %d %d", null_fd, errno);
-		return 0;
-	}
-
-	return r;
-}
-
-#define MAX_AV_COUNT 32
-#define ONE_ARG_LEN 1024
-
-static void _run_command_pipe(const char *cmd_str, pid_t *pid_out, FILE **fp_out)
-{
-	char arg[ONE_ARG_LEN];
-	char *av[MAX_AV_COUNT + 1]; /* +1 for NULL */
-	char *arg_dup;
-	int av_count = 0;
-	int cmd_len;
-	int arg_len;
-	pid_t pid = 0;
-	FILE *fp = NULL;
-	int pipefd[2];
-	int i;
-
-	for (i = 0; i < MAX_AV_COUNT + 1; i++)
-		av[i] = NULL;
-
-	cmd_len = strlen(cmd_str);
-
-	memset(&arg, 0, sizeof(arg));
-	arg_len = 0;
-
-	for (i = 0; i < cmd_len; i++) {
-		if (!cmd_str[i])
-			break;
-
-		if (av_count == MAX_AV_COUNT)
-			goto out;
-
-		if (cmd_str[i] == '\\') {
-			if (i == (cmd_len - 1))
-				break;
-			i++;
-
-			if (cmd_str[i] == '\\') {
-				arg[arg_len++] = cmd_str[i];
-				continue;
-			}
-			if (isspace(cmd_str[i])) {
-				arg[arg_len++] = cmd_str[i];
-				continue;
-			} else {
-				break;
-			}
-		}
-
-		if (isalnum(cmd_str[i]) || ispunct(cmd_str[i])) {
-			arg[arg_len++] = cmd_str[i];
-		} else if (isspace(cmd_str[i])) {
-			if (arg_len) {
-				if (!(arg_dup = strdup(arg)))
-					goto out;
-				av[av_count++] = arg_dup;
-			}
-
-			memset(arg, 0, sizeof(arg));
-			arg_len = 0;
-		} else {
-			break;
-		}
-	}
-
-	if (arg_len) {
-		if (av_count >= MAX_AV_COUNT)
-			goto out;
-		if (!(arg_dup = strdup(arg)))
-			goto out;
-		av[av_count++] = arg_dup;
-	}
-
-	if (pipe(pipefd)) {
-		log_error("pipe error %d", errno);
-		goto out;
-	}
-
-	pid = fork();
-
-	if (pid < 0) {
-		log_error("fork error %d", errno);
-		pid = 0;
-		goto out;
-	}
-
-	if (pid == 0) {
-		/* Child -> writer, convert pipe[0] to STDOUT */
-		if (!_reopen_fd_to_null(STDIN_FILENO))
-			log_error("reopen STDIN error");
-		else if (close(pipefd[0 /*read*/]))
-			log_error("close error pipe[0] %d", errno);
-		else if (close(STDOUT_FILENO))
-			log_error("close error STDOUT %d", errno);
-		else if (dup2(pipefd[1 /*write*/], STDOUT_FILENO) == -1)
-			log_error("dup2 error STDOUT %d", errno);
-		else if (close(pipefd[1]))
-			log_error("close error pipe[1] %d", errno);
-		else {
-			execvp(av[0], av);
-			log_error("execvp error %d", errno);
-		}
-		_exit(errno);
-	}
-
-	/* Parent -> reader */
-	if (close(pipefd[1 /*write*/]))
-		log_error("close error STDOUT %d", errno);
-
-	if (!(fp = fdopen(pipefd[0 /*read*/],  "r"))) {
-		log_error("fdopen STDIN error %d", errno);
-		if (close(pipefd[0]))
-			log_error("close error STDIN %d", errno);
-	}
-
- out:
-	for (i = 0; i < MAX_AV_COUNT + 1; i++)
-		free(av[i]);
-
-	*pid_out = pid;
-	*fp_out = fp;
-}
-
-/* Returns -1 on error, 0 on success. */
-
-static int _close_command_pipe(pid_t pid, FILE *fp)
-{
-	int status, estatus;
-	int ret = -1;
-
-	if (waitpid(pid, &status, 0) != pid) {
-		log_error("waitpid error pid %d %d", pid, errno);
-		goto out;
-	}
-
-	if (WIFEXITED(status)) {
-		/* pid exited with an exit code */
-		estatus = WEXITSTATUS(status);
-
-		/* exit status 0: child success */
-		if (!estatus) {
-			ret = 0;
-			goto out;
-		}
-
-		/* exit status not zero: child error */
-		log_error("child exit error %d", estatus);
-		goto out;
-	}
-
-	if (WIFSIGNALED(status)) {
-		/* pid terminated due to a signal */
-		log_error("child exit from signal");
-		goto out;
-	}
-
-	log_error("child exit problem");
-
-out:
-	if (fp && fclose(fp))
-		log_error("fclose error STDIN %d", errno);
-	return ret;
-}
-
-/* Returns -1 on error, 0 on success. */
-
-static int _get_kill_command(char *kill_cmd)
-{
-	char config_cmd[PATH_MAX + 128] = { 0 };
-	char config_val[1024] = { 0 };
-	char line[PATH_MAX] = { 0 };
-	pid_t pid = 0;
-	FILE *fp = NULL;
-
-	snprintf(config_cmd, PATH_MAX, "%s config --typeconfig full global/lvmlockctl_kill_command", LVM_PATH);
-
-	_run_command_pipe(config_cmd, &pid, &fp);
-
-	if (!pid) {
-		log_error("failed to run %s", config_cmd);
-		return -1;
-	}
-
-	if (!fp) {
-		log_error("failed to get output %s", config_cmd);
-		_close_command_pipe(pid, fp);
-		return -1;
-	}
-
-	if (!fgets(line, sizeof(line), fp)) {
-		log_error("no output from %s", config_cmd);
-		goto bad;
-	}
-
-	if (sscanf(line, "lvmlockctl_kill_command=\"%256[^\n\"]\"", config_val) != 1) {
-		log_error("unrecognized config value from %s", config_cmd);
-		goto bad;
-	}
-
-	if (!config_val[0] || (config_val[0] == ' ')) {
-		log_error("invalid config value from %s", config_cmd);
-		goto bad;
-	}
-
-	if (config_val[0] != '/') {
-		log_error("lvmlockctl_kill_command must be full path");
-		goto bad;
-	}
-
-	printf("Found lvmlockctl_kill_command: %s\n", config_val);
-
-	snprintf(kill_cmd, PATH_MAX, "%s %s", config_val, arg_vg_name);
-	kill_cmd[PATH_MAX-1] = '\0';
-
-	_close_command_pipe(pid, fp);
-	return 0;
-bad:
-	_close_command_pipe(pid, fp);
-	return -1;
-}
-
-/* Returns -1 on error, 0 on success. */
-
-static int _run_kill_command(char *kill_cmd)
-{
-	pid_t pid = 0;
-	FILE *fp = NULL;
 	int rv;
 
-	_run_command_pipe(kill_cmd, &pid, &fp);
+	syslog(LOG_EMERG, "Lost access to sanlock lease storage in VG %s.", arg_vg_name);
-	rv = _close_command_pipe(pid, fp);
+	/* These two lines explain the manual alternative to the FIXME below. */
+	syslog(LOG_EMERG, "Immediately deactivate LVs in VG %s.", arg_vg_name);
+	syslog(LOG_EMERG, "Once VG is unused, run lvmlockctl --drop %s.", arg_vg_name);
 
-	if (!pid)
+	/*
-		return -1;
+	 * It may not be strictly necessary to notify lvmlockd of the kill, but
+	 * lvmlockd can use this information to avoid attempting any new lock
+	 * requests in the VG (which would fail anyway), and can return an
+	 * error indicating that the VG has been killed.
+	 */
 
-	if (rv < 0)
+	reply = _lvmlockd_send("kill_vg",
-		return -1;
+				"cmd = %s", "lvmlockctl",
+				"pid = " FMTd64, (int64_t) getpid(),
+				"vg_name = %s", arg_vg_name,
+				NULL);
 
-	return 0;
+	if (!_lvmlockd_result(reply, &result)) {
+		log_error("lvmlockd result %d", result);
+		rv = result;
+	} else {
+		rv = 0;
+	}
+
+	daemon_reply_destroy(reply);
+
+	/*
+	 * FIXME: here is where we should implement a strong form of
+	 * blkdeactivate, and if it completes successfully, automatically call
+	 * do_drop() afterward.  (The drop step may not always be necessary
+	 * if the lvm commands run while shutting things down release all the
+	 * leases.)
+	 *
+	 * run_strong_blkdeactivate();
+	 * do_drop();
+	 */
+
+	return rv;
 }
 
 static int do_drop(void)
@@ -799,7 +554,7 @@ static int do_drop(void)
 	int result;
 	int rv;
 
-	log_sys_warn("Dropping locks for VG %s.", arg_vg_name);
+	syslog(LOG_WARNING, "Dropping locks for VG %s.", arg_vg_name);
 
 	/*
 	 * Check for misuse by looking for any active LVs in the VG
@@ -827,84 +582,6 @@ static int do_drop(void)
 	return rv;
 }
 
-static int do_kill(void)
-{
-	char kill_cmd[PATH_MAX] = { 0 };
-	daemon_reply reply;
-	int no_kill_command = 0;
-	int result;
-	int rv;
-
-	log_sys_emerg("lvmlockd lost access to locks in VG %s.", arg_vg_name);
-
-	rv = _get_kill_command(kill_cmd);
-	if (rv < 0) {
-		log_sys_emerg("Immediately deactivate LVs in VG %s.", arg_vg_name);
-		log_sys_emerg("Once VG is unused, run lvmlockctl --drop %s.", arg_vg_name);
-		no_kill_command = 1;
-	}
-
-	/*
-	 * It may not be strictly necessary to notify lvmlockd of the kill, but
-	 * lvmlockd can use this information to avoid attempting any new lock
-	 * requests in the VG (which would fail anyway), and can return an
-	 * error indicating that the VG has been killed.
-	 */
-	_lvmlockd = lvmlockd_open(NULL);
-	if (_lvmlockd.socket_fd < 0 || _lvmlockd.error) {
-		log_error("Cannot connect to lvmlockd for kill_vg.");
-		goto run;
-	}
-	reply = _lvmlockd_send("kill_vg",
-				"cmd = %s", "lvmlockctl",
-				"pid = " FMTd64, (int64_t) getpid(),
-				"vg_name = %s", arg_vg_name,
-				NULL);
-	if (!_lvmlockd_result(reply, &result))
-		log_error("lvmlockd result %d kill_vg", result);
-	daemon_reply_destroy(reply);
-	lvmlockd_close(_lvmlockd);
-
- run:
-	if (no_kill_command)
-		return 0;
-
-	rv = _run_kill_command(kill_cmd);
-	if (rv < 0) {
-		log_sys_emerg("Failed to run VG %s kill command %s", arg_vg_name, kill_cmd);
-		log_sys_emerg("Immediately deactivate LVs in VG %s.", arg_vg_name);
-		log_sys_emerg("Once VG is unused, run lvmlockctl --drop %s.", arg_vg_name);
-		return -1;
-	}
-
-	log_sys_warn("Successful VG %s kill command %s", arg_vg_name, kill_cmd);
-
-	/*
-	 * If kill command was successfully, call do_drop().  (The drop step
-	 * may not always be necessary if the lvm commands run while shutting
-	 * things down release all the leases.)
-	 */
-	rv = 0;
-	_lvmlockd = lvmlockd_open(NULL);
-	if (_lvmlockd.socket_fd < 0 || _lvmlockd.error) {
-		log_sys_emerg("Failed to connect to lvmlockd to drop locks in VG %s.", arg_vg_name);
-		return -1;
-	}
-	reply = _lvmlockd_send("drop_vg",
-				"cmd = %s", "lvmlockctl",
-				"pid = " FMTd64, (int64_t) getpid(),
-				"vg_name = %s", arg_vg_name,
-				NULL);
-	if (!_lvmlockd_result(reply, &result)) {
-		log_sys_emerg("Failed to drop locks in VG %s", arg_vg_name);
-		rv = result;
-	}
-	daemon_reply_destroy(reply);
-	lvmlockd_close(_lvmlockd);
-
-	return rv;
-}
-
 static void print_usage(void)
 {
 	printf("lvmlockctl options\n");
@@ -922,7 +599,7 @@ static void print_usage(void)
 	printf("--force | -f 0|1>\n");
 	printf("      Force option for other commands.\n");
 	printf("--kill | -k <vgname>\n");
-	printf("      Kill access to the VG locks are lost (see lvmlockctl_kill_command).\n");
+	printf("      Kill access to the VG when sanlock cannot renew lease.\n");
 	printf("--drop | -r <vgname>\n");
 	printf("      Clear locks for the VG when it is unused after kill (-k).\n");
 	printf("--gl-enable | -E <vgname>\n");
@@ -931,8 +608,6 @@ static void print_usage(void)
 	printf("      Tell lvmlockd to disable the global lock in a sanlock VG.\n");
 	printf("--stop-lockspaces | -S\n");
 	printf("      Stop all lockspaces.\n");
-	printf("--stderr | -e\n");
-	printf("      Send kill and drop messages to stderr instead of syslog\n");
 }
 
 static int read_options(int argc, char *argv[])
@@ -952,7 +627,6 @@ static int read_options(int argc, char *argv[])
 		{"gl-enable",       required_argument, 0,  'E' },
 		{"gl-disable",      required_argument, 0,  'D' },
 		{"stop-lockspaces", no_argument,       0,  'S' },
-		{"stderr",          no_argument,       0,  'e' },
 		{0, 0, 0, 0 }
 	};
 
@@ -962,7 +636,7 @@ static int read_options(int argc, char *argv[])
 	}
 
 	while (1) {
-		c = getopt_long(argc, argv, "hqidE:D:w:k:r:Se", long_options, &option_index);
+		c = getopt_long(argc, argv, "hqidE:D:w:k:r:S", long_options, &option_index);
 		if (c == -1)
 			break;
 
@@ -988,30 +662,23 @@ static int read_options(int argc, char *argv[])
 			break;
 		case 'k':
 			kill_vg = 1;
-			free(arg_vg_name);
 			arg_vg_name = strdup(optarg);
 			break;
 		case 'r':
 			drop_vg = 1;
-			free(arg_vg_name);
 			arg_vg_name = strdup(optarg);
 			break;
 		case 'E':
 			gl_enable = 1;
-			free(arg_vg_name);
 			arg_vg_name = strdup(optarg);
 			break;
 		case 'D':
 			gl_disable = 1;
-			free(arg_vg_name);
 			arg_vg_name = strdup(optarg);
 			break;
 		case 'S':
 			stop_lockspaces = 1;
 			break;
-		case 'e':
-			use_stderr = 1;
-			break;
 		default:
 			print_usage();
 			exit(1);
@@ -1030,12 +697,8 @@ int main(int argc, char **argv)
 	if (rv < 0)
 		return rv;
 
-	/* do_kill handles lvmlockd connections itself */
-	if (kill_vg)
-		return do_kill();
-
-
 	_lvmlockd = lvmlockd_open(NULL);
+
 	if (_lvmlockd.socket_fd < 0 || _lvmlockd.error) {
 		log_error("Cannot connect to lvmlockd.");
 		return -1;
@@ -1056,6 +719,11 @@ int main(int argc, char **argv)
 		goto out;
 	}
 
+	if (kill_vg) {
+		rv = do_kill();
+		goto out;
+	}
+
 	if (drop_vg) {
 		rv = do_drop();
 		goto out;

daemons/lvmlockd/lvmlockd-client.h

@@ -11,10 +11,9 @@
 #ifndef _LVM_LVMLOCKD_CLIENT_H
 #define _LVM_LVMLOCKD_CLIENT_H
 
-#include "libdaemon/client/daemon-client.h"
+#include "daemon-client.h"
 
 #define LVMLOCKD_SOCKET DEFAULT_RUN_DIR "/lvmlockd.socket"
-#define LVMLOCKD_ADOPT_FILE DEFAULT_RUN_DIR "/lvmlockd.adopt"
 
 /* Wrappers to open/close connection */
 

daemons/lvmlockd/lvmlockd-dlm.c

@@ -11,20 +11,19 @@
 #define _XOPEN_SOURCE 500  /* pthread */
 #define _ISOC99_SOURCE
 
-#include "tools/tool.h"
+#include "tool.h"
 
 #include "daemon-server.h"
-#include "lib/mm/xlate.h"
+#include "xlate.h"
 
 #include "lvmlockd-internal.h"
-#include "daemons/lvmlockd/lvmlockd-client.h"
+#include "lvmlockd-client.h"
 
 /*
  * Using synchronous _wait dlm apis so do not define _REENTRANT and
  * link with non-threaded version of library, libdlm_lt.
  */
 #include "libdlm.h"
-#include "libdlmcontrol.h"
 
 #include <stddef.h>
 #include <poll.h>
@@ -119,7 +118,6 @@ static int read_cluster_name(char *clustername)
 			log_error(close_error_msg, fd);
 		return rv;
 	}
-	clustername[rv] = 0;
 
 	n = strstr(clustername, "\n");
 	if (n)
@@ -129,18 +127,16 @@ static int read_cluster_name(char *clustername)
 	return 0;
 }
 
-#define MAX_VERSION 16
-
 int lm_init_vg_dlm(char *ls_name, char *vg_name, uint32_t flags, char *vg_args)
 {
 	char clustername[MAX_ARGS+1];
-	char lock_args_version[MAX_VERSION+1];
+	char lock_args_version[MAX_ARGS+1];
 	int rv;
 
 	memset(clustername, 0, sizeof(clustername));
 	memset(lock_args_version, 0, sizeof(lock_args_version));
 
-	snprintf(lock_args_version, MAX_VERSION, "%u.%u.%u",
+	snprintf(lock_args_version, MAX_ARGS, "%u.%u.%u",
 		 VG_LOCK_ARGS_MAJOR, VG_LOCK_ARGS_MINOR, VG_LOCK_ARGS_PATCH);
 
 	rv = read_cluster_name(clustername);
@@ -152,9 +148,7 @@ int lm_init_vg_dlm(char *ls_name, char *vg_name, uint32_t flags, char *vg_args)
 		return -EARGS;
 	}
 
-	rv = snprintf(vg_args, MAX_ARGS, "%s:%s", lock_args_version, clustername);
+	snprintf(vg_args, MAX_ARGS, "%s:%s", lock_args_version, clustername);
-	if (rv >= MAX_ARGS)
-		log_debug("init_vg_dlm vg_args may be too long %d %s", rv, vg_args);
 	rv = 0;
 
 	log_debug("init_vg_dlm done %s vg_args %s", ls_name, vg_args);
@@ -278,9 +272,10 @@ static int lm_add_resource_dlm(struct lockspace *ls, struct resource *r, int wit
 	int rv;
 
 	if (r->type == LD_RT_GL || r->type == LD_RT_VG) {
-		buf = zalloc(sizeof(struct val_blk) + DLM_LVB_LEN);
+		buf = malloc(sizeof(struct val_blk) + DLM_LVB_LEN);
 		if (!buf)
 			return -ENOMEM;
+		memset(buf, 0, sizeof(struct val_blk) + DLM_LVB_LEN);
 
 		rdd->vb = (struct val_blk *)buf;
 		rdd->lksb.sb_lvbptr = buf + sizeof(struct val_blk);
@@ -328,6 +323,7 @@ int lm_rem_resource_dlm(struct lockspace *ls, struct resource *r)
 		log_error("S %s R %s rem_resource_dlm unlock error %d", ls->name, r->name, rv);
 	}
  out:
+	if (rdd->vb)
 		free(rdd->vb);
 
 	memset(rdd, 0, sizeof(struct rd_dlm));
@@ -398,18 +394,12 @@ static int lm_adopt_dlm(struct lockspace *ls, struct resource *r, int ld_mode,
 			  (void *)1, (void *)1, (void *)1,
 			  NULL, NULL);
 
-	if (rv == -1 && (errno == EAGAIN)) {
+	if (rv == -1 && errno == -EAGAIN) {
 		log_debug("S %s R %s adopt_dlm adopt mode %d try other mode",
 			  ls->name, r->name, ld_mode);
 		rv = -EUCLEAN;
 		goto fail;
 	}
-	if (rv == -1 && (errno == ENOENT)) {
-		log_debug("S %s R %s adopt_dlm adopt mode %d no lock",
-			  ls->name, r->name, ld_mode);
-		rv = -ENOENT;
-		goto fail;
-	}
 	if (rv < 0) {
 		log_debug("S %s R %s adopt_dlm mode %d flags %x error %d errno %d",
 			  ls->name, r->name, mode, flags, rv, errno);
@@ -787,108 +777,3 @@ int lm_is_running_dlm(void)
 	return 1;
 }
 
-#ifdef LOCKDDLM_CONTROL_SUPPORT
-
-int lm_refresh_lv_start_dlm(struct action *act)
-{
-	char path[PATH_MAX] = { 0 };
-	char command[DLMC_RUN_COMMAND_LEN];
-	char run_uuid[DLMC_RUN_UUID_LEN];
-	char *p, *vgname, *lvname;
-	int rv;
-
-	/* split /dev/vgname/lvname into vgname and lvname strings */
-	strncpy(path, act->path, PATH_MAX-1);
-
-	/* skip past dev */
-	if (!(p = strchr(path + 1, '/')))
-		return -EINVAL;
-
-	/* skip past slashes */
-	while (*p == '/')
-		p++;
-
-	/* start of vgname */
-	vgname = p;
-
-	/* skip past vgname */
-	while (*p != '/')
-		p++;
-
-	/* terminate vgname */
-	*p = '\0';
-	p++;
-
-	/* skip past slashes */
-	while (*p == '/')
-		p++;
-
-	lvname = p;
-
-	memset(command, 0, sizeof(command));
-	memset(run_uuid, 0, sizeof(run_uuid));
-
-	/* todo: add --readonly */
-
-	snprintf(command, DLMC_RUN_COMMAND_LEN,
-		 "lvm lvchange --refresh --partial --nolocking %s/%s",
-		 vgname, lvname);
-
-	rv = dlmc_run_start(command, strlen(command), 0,
-			    DLMC_FLAG_RUN_START_NODE_NONE,
-			    run_uuid);
-	if (rv < 0) {
-		log_debug("refresh_lv run_start error %d", rv);
-		return rv;
-	}
-
-	log_debug("refresh_lv run_start %s", run_uuid);
-
-	/* Bit of a hack here, we don't need path once started,
-	   but we do need to save the run_uuid somewhere, so just
-	   replace the path with the uuid. */
-
-	free(act->path);
-	act->path = strdup(run_uuid);
-	return 0;
-}
-
-int lm_refresh_lv_check_dlm(struct action *act)
-{
-	uint32_t check_status = 0;
-	int rv;
-
-	/* NB act->path was replaced with run_uuid */
-
-	rv = dlmc_run_check(act->path, strlen(act->path), 0,
-			    DLMC_FLAG_RUN_CHECK_CLEAR,
-			    &check_status);
-	if (rv < 0) {
-		log_debug("refresh_lv check error %d", rv);
-		return rv;
-	}
-
-	log_debug("refresh_lv check %s status %x", act->path, check_status);
-
-	if (!(check_status & DLMC_RUN_STATUS_DONE))
-		return -EAGAIN;
-
-	if (check_status & DLMC_RUN_STATUS_FAILED)
-		return -1;
-
-	return 0;
-}
-
-#else /* LOCKDDLM_CONTROL_SUPPORT */
-
-int lm_refresh_lv_start_dlm(struct action *act)
-{
-	return 0;
-}
-
-int lm_refresh_lv_check_dlm(struct action *act)
-{
-	return 0;
-}
-
-#endif /* LOCKDDLM_CONTROL_SUPPORT */

daemons/lvmlockd/lvmlockd-idm.c

@@ -1,837 +0,0 @@
-/*
- * Copyright (C) 2020-2021 Seagate Ltd.
- *
- * This file is part of LVM2.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU Lesser General Public License v.2.1.
- */
-
-#define _XOPEN_SOURCE 500  /* pthread */
-#define _ISOC99_SOURCE
-
-#include "tools/tool.h"
-
-#include "daemon-server.h"
-#include "lib/mm/xlate.h"
-
-#include "lvmlockd-internal.h"
-#include "daemons/lvmlockd/lvmlockd-client.h"
-
-#include "ilm.h"
-
-#include <blkid/blkid.h>
-#include <ctype.h>
-#include <dirent.h>
-#include <errno.h>
-#include <poll.h>
-#include <regex.h>
-#include <stddef.h>
-#include <syslog.h>
-#include <sys/sysmacros.h>
-#include <time.h>
-
-#define IDM_TIMEOUT	60000	/* unit: millisecond, 60 seconds */
-
-/*
- * Each lockspace thread has its own In-Drive Mutex (IDM) lock manager's
- * connection.  After established socket connection, the lockspace has
- * been created in IDM lock manager and afterwards use the socket file
- * descriptor to send any requests for lock related operations.
- */
-
-struct lm_idm {
-	int sock;	/* IDM lock manager connection */
-};
-
-struct rd_idm {
-	struct idm_lock_id id;
-	struct idm_lock_op op;
-	uint64_t vb_timestamp;
-	struct val_blk *vb;
-};
-
-int lm_data_size_idm(void)
-{
-	return sizeof(struct rd_idm);
-}
-
-static uint64_t read_utc_us(void)
-{
-	struct timespec cur_time;
-
-	clock_gettime(CLOCK_REALTIME, &cur_time);
-
-	/*
-	 * Convert to microseconds unit.  IDM reserves the MSB in 8 bytes
-	 * and the low 56 bits are used for timestamp; 56 bits can support
-	 * calendar year to 2284, so it has 260 years for overflow.  Thus it
-	 * is quite safe for overflow issue when wrote this code.
-	 */
-	return cur_time.tv_sec * 1000000 + cur_time.tv_nsec / 1000;
-}
-
-static int uuid_read_format(char *uuid_str, const char *buffer)
-{
-	int out = 0;
-
-	/* just strip out any dashes */
-	while (*buffer) {
-
-		if (*buffer == '-') {
-			buffer++;
-			continue;
-		}
-
-		if (out >= 32) {
-			log_error("Too many characters to be uuid.");
-			return -1;
-		}
-
-		uuid_str[out++] = *buffer;
-		buffer++;
-	}
-
-	if (out != 32) {
-		log_error("Couldn't read uuid: incorrect number of "
-			  "characters.");
-		return -1;
-	}
-
-	return 0;
-}
-
-#define SYSFS_ROOT		"/sys"
-#define BUS_SCSI_DEVS		"/bus/scsi/devices"
-
-static struct idm_lock_op glb_lock_op;
-
-static void lm_idm_free_dir_list(struct dirent **dir_list, int dir_num)
-{
-	int i;
-
-	for (i = 0; i < dir_num; ++i)
-		free(dir_list[i]);
-	free(dir_list);
-}
-
-static int lm_idm_scsi_directory_select(const struct dirent *s)
-{
-	regex_t regex;
-	int ret;
-
-	/* Only select directory with the format x:x:x:x */
-	ret = regcomp(&regex, "^[0-9]+:[0-9]+:[0-9]+:[0-9]+$", REG_EXTENDED);
-	if (ret)
-		return 0;
-
-	ret = regexec(&regex, s->d_name, 0, NULL, 0);
-	if (!ret) {
-		regfree(&regex);
-		return 1;
-	}
-
-	regfree(&regex);
-	return 0;
-}
-
-static int lm_idm_scsi_find_block_dirctory(const char *block_path)
-{
-	struct stat stats;
-
-	if ((stat(block_path, &stats) >= 0) && S_ISDIR(stats.st_mode))
-		return 0;
-
-	return -1;
-}
-
-static int lm_idm_scsi_block_node_select(const struct dirent *s)
-{
-	if (DT_LNK != s->d_type && DT_DIR != s->d_type)
-		return 0;
-
-	if (DT_DIR == s->d_type) {
-		/* Skip this directory: '.' and parent: '..' */
-		if (!strcmp(s->d_name, ".") || !strcmp(s->d_name, ".."))
-			return 0;
-	}
-
-	return 1;
-}
-
-static int lm_idm_scsi_find_block_node(const char *blk_path, char **blk_dev)
-{
-        struct dirent **dir_list;
-        int dir_num;
-
-        dir_num = scandir(blk_path, &dir_list, lm_idm_scsi_block_node_select, NULL);
-        if (dir_num < 0) {
-		log_error("Cannot find valid directory entry in %s", blk_path);
-                return -1;
-	}
-
-	/*
-	 * Should have only one block name under the path, if the dir_num is
-	 * not 1 (e.g. 0 or any number bigger than 1), it must be wrong and
-	 * should never happen.
-	 */
-	if (dir_num == 1)
-		*blk_dev = strdup(dir_list[0]->d_name);
-	else
-		*blk_dev = NULL;
-
-	lm_idm_free_dir_list(dir_list, dir_num);
-
-	if (!*blk_dev)
-		return -1;
-
-        return dir_num;
-}
-
-static int lm_idm_scsi_search_propeller_partition(char *dev)
-{
-	int i, nparts;
-	blkid_probe pr;
-	blkid_partlist ls;
-	int found = -1;
-
-	pr = blkid_new_probe_from_filename(dev);
-	if (!pr) {
-		log_error("%s: failed to create a new libblkid probe", dev);
-		return -1;
-	}
-
-	/* Binary interface */
-	ls = blkid_probe_get_partitions(pr);
-	if (!ls) {
-		log_error("%s: failed to read partitions", dev);
-		return -1;
-	}
-
-	/* List partitions */
-	nparts = blkid_partlist_numof_partitions(ls);
-	if (!nparts)
-		goto done;
-
-	for (i = 0; i < nparts; i++) {
-		const char *p;
-		blkid_partition par = blkid_partlist_get_partition(ls, i);
-
-		p = blkid_partition_get_name(par);
-		if (p) {
-			log_debug("partition name='%s'", p);
-
-			if (!strcmp(p, "propeller"))
-				found = blkid_partition_get_partno(par);
-		}
-
-		if (found >= 0)
-			break;
-	}
-
-done:
-	blkid_free_probe(pr);
-	return found;
-}
-
-static char *lm_idm_scsi_get_block_device_node(const char *scsi_path)
-{
-	char *blk_path = NULL;
-	char *blk_dev = NULL;
-	char *dev_node = NULL;
-	int ret;
-
-	/*
-	 * Locate the "block" directory, such like:
-	 * /sys/bus/scsi/devices/1:0:0:0/block
-	 */
-	ret = asprintf(&blk_path, "%s/%s", scsi_path, "block");
-	if (ret < 0) {
-		log_error("Fail to allocate block path for %s", scsi_path);
-		goto fail;
-	}
-
-	ret = lm_idm_scsi_find_block_dirctory(blk_path);
-	if (ret < 0) {
-		log_error("Fail to find block path %s", blk_path);
-		goto fail;
-	}
-
-	/*
-	 * Locate the block device name, such like:
-	 * /sys/bus/scsi/devices/1:0:0:0/block/sdb
-	 *
-	 * After return from this function and if it makes success,
-	 * the global variable "blk_dev" points to the block device
-	 * name, in this example it points to string "sdb".
-	 */
-	ret = lm_idm_scsi_find_block_node(blk_path, &blk_dev);
-	if (ret < 0) {
-		log_error("Fail to find block node");
-		goto fail;
-	}
-
-	ret = asprintf(&dev_node, "/dev/%s", blk_dev);
-	if (ret < 0) {
-		log_error("Fail to allocate memory for blk node path");
-		goto fail;
-	}
-
-	ret = lm_idm_scsi_search_propeller_partition(dev_node);
-	if (ret < 0)
-		goto fail;
-
-	free(blk_path);
-	free(blk_dev);
-	return dev_node;
-
-fail:
-	free(blk_path);
-	free(blk_dev);
-	free(dev_node);
-	return NULL;
-}
-
-static int lm_idm_get_gl_lock_pv_list(void)
-{
-	struct dirent **dir_list;
-	char scsi_bus_path[PATH_MAX];
-	char *drive_path;
-	int i, dir_num, ret;
-
-	if (glb_lock_op.drive_num)
-		return 0;
-
-	snprintf(scsi_bus_path, sizeof(scsi_bus_path), "%s%s",
-		 SYSFS_ROOT, BUS_SCSI_DEVS);
-
-	dir_num = scandir(scsi_bus_path, &dir_list,
-			  lm_idm_scsi_directory_select, NULL);
-	if (dir_num < 0) {  /* scsi mid level may not be loaded */
-		log_error("Attached devices: none");
-		return -1;
-	}
-
-	for (i = 0; i < dir_num; i++) {
-		char *scsi_path;
-
-		ret = asprintf(&scsi_path, "%s/%s", scsi_bus_path,
-			       dir_list[i]->d_name);
-		if (ret < 0) {
-			log_error("Fail to allocate memory for scsi directory");
-			goto failed;
-		}
-
-		if (glb_lock_op.drive_num >= ILM_DRIVE_MAX_NUM) {
-			log_error("Global lock: drive number %d exceeds limitation (%d) ?!",
-				  glb_lock_op.drive_num, ILM_DRIVE_MAX_NUM);
-			free(scsi_path);
-			goto failed;
-		}
-
-		drive_path = lm_idm_scsi_get_block_device_node(scsi_path);
-		if (!drive_path) {
-			free(scsi_path);
-			continue;
-		}
-
-		glb_lock_op.drives[glb_lock_op.drive_num] = drive_path;
-		glb_lock_op.drive_num++;
-
-		free(scsi_path);
-	}
-
-	lm_idm_free_dir_list(dir_list, dir_num);
-	return 0;
-
-failed:
-	lm_idm_free_dir_list(dir_list, dir_num);
-
-	for (i = 0; i < glb_lock_op.drive_num; i++) {
-		if (glb_lock_op.drives[i]) {
-			free(glb_lock_op.drives[i]);
-			glb_lock_op.drives[i] = NULL;
-		}
-	}
-
-	return -1;
-}
-
-static void lm_idm_update_vb_timestamp(uint64_t *vb_timestamp)
-{
-	uint64_t utc_us = read_utc_us();
-
-	/*
-	 * It's possible that the multiple nodes have no clock
-	 * synchronization with microsecond prcision and the time
-	 * is going backward.  For this case, simply increment the
-	 * existing timestamp and write out to drive.
-	 */
-	if (*vb_timestamp >= utc_us)
-		(*vb_timestamp)++;
-	else
-		*vb_timestamp = utc_us;
-}
-
-int lm_prepare_lockspace_idm(struct lockspace *ls)
-{
-	struct lm_idm *lm = NULL;
-
-	lm = malloc(sizeof(struct lm_idm));
-	if (!lm) {
-		log_error("S %s prepare_lockspace_idm fail to allocate lm_idm for %s",
-			  ls->name, ls->vg_name);
-		return -ENOMEM;
-	}
-	memset(lm, 0x0, sizeof(struct lm_idm));
-
-	ls->lm_data = lm;
-	log_debug("S %s prepare_lockspace_idm done", ls->name);
-	return 0;
-}
-
-int lm_add_lockspace_idm(struct lockspace *ls, int adopt)
-{
-	char killpath[IDM_FAILURE_PATH_LEN];
-	char killargs[IDM_FAILURE_ARGS_LEN];
-	struct lm_idm *lmi = (struct lm_idm *)ls->lm_data;
-	int rv;
-
-	if (daemon_test)
-		return 0;
-
-	if (!strcmp(ls->name, S_NAME_GL_IDM)) {
-		/*
-		 * Prepare the pv list for global lock, if the drive contains
-		 * "propeller" partition, then this drive will be considered
-		 * as a member of pv list.
-		 */
-		rv = lm_idm_get_gl_lock_pv_list();
-		if (rv < 0) {
-			log_error("S %s add_lockspace_idm fail to get pv list for glb lock",
-				  ls->name);
-			return -EIO;
-		} else {
-			log_error("S %s add_lockspace_idm get pv list for glb lock",
-				  ls->name);
-		}
-	}
-
-	/*
-	 * Construct the execution path for command "lvmlockctl" by using the
-	 * path to the lvm binary and appending "lockctl".
-	 */
-	memset(killpath, 0, sizeof(killpath));
-	snprintf(killpath, IDM_FAILURE_PATH_LEN, "%slockctl", LVM_PATH);
-
-	/* Pass the argument "--kill vg_name" for killpath */
-	memset(killargs, 0, sizeof(killargs));
-	snprintf(killargs, IDM_FAILURE_ARGS_LEN, "--kill %s", ls->vg_name);
-
-	/* Connect with IDM lock manager per every lockspace. */
-	rv = ilm_connect(&lmi->sock);
-	if (rv < 0) {
-		log_error("S %s add_lockspace_idm fail to connect the lock manager %d",
-			  ls->name, lmi->sock);
-		lmi->sock = 0;
-		rv = -EMANAGER;
-		goto fail;
-	}
-
-	rv = ilm_set_killpath(lmi->sock, killpath, killargs);
-	if (rv < 0) {
-		log_error("S %s add_lockspace_idm fail to set kill path %d",
-			  ls->name, rv);
-		rv = -EMANAGER;
-		goto fail;
-	}
-
-	log_debug("S %s add_lockspace_idm kill path is: \"%s %s\"",
-		  ls->name, killpath, killargs);
-
-	log_debug("S %s add_lockspace_idm done", ls->name);
-	return 0;
-
-fail:
-	if (lmi && lmi->sock)
-		close(lmi->sock);
-
-	free(lmi);
-
-	return rv;
-}
-
-int lm_rem_lockspace_idm(struct lockspace *ls, int free_vg)
-{
-	struct lm_idm *lmi = (struct lm_idm *)ls->lm_data;
-	int i, rv = 0;
-
-	if (daemon_test)
-		goto out;
-
-	rv = ilm_disconnect(lmi->sock);
-	if (rv < 0)
-		log_error("S %s rem_lockspace_idm error %d", ls->name, rv);
-
-	/* Release pv list for global lock */
-	if (!strcmp(ls->name, "lvm_global")) {
-		for (i = 0; i < glb_lock_op.drive_num; i++) {
-			if (glb_lock_op.drives[i]) {
-				free(glb_lock_op.drives[i]);
-				glb_lock_op.drives[i] = NULL;
-			}
-		}
-	}
-
-out:
-	free(lmi);
-	ls->lm_data = NULL;
-	return rv;
-}
-
-static int lm_add_resource_idm(struct lockspace *ls, struct resource *r)
-{
-	struct rd_idm *rdi = (struct rd_idm *)r->lm_data;
-
-	if (r->type == LD_RT_GL || r->type == LD_RT_VG) {
-		rdi->vb = zalloc(sizeof(struct val_blk));
-		if (!rdi->vb)
-			return -ENOMEM;
-	}
-
-	return 0;
-}
-
-int lm_rem_resource_idm(struct lockspace *ls, struct resource *r)
-{
-	struct rd_idm *rdi = (struct rd_idm *)r->lm_data;
-
-	free(rdi->vb);
-
-	memset(rdi, 0, sizeof(struct rd_idm));
-	r->lm_init = 0;
-	return 0;
-}
-
-static int to_idm_mode(int ld_mode)
-{
-	switch (ld_mode) {
-	case LD_LK_EX:
-		return IDM_MODE_EXCLUSIVE;
-	case LD_LK_SH:
-		return IDM_MODE_SHAREABLE;
-	default:
-		break;
-	};
-
-	return -1;
-}
-
-int lm_lock_idm(struct lockspace *ls, struct resource *r, int ld_mode,
-		struct val_blk *vb_out, char *lv_uuid, struct pvs *pvs,
-		int adopt)
-{
-	struct lm_idm *lmi = (struct lm_idm *)ls->lm_data;
-	struct rd_idm *rdi = (struct rd_idm *)r->lm_data;
-	char **drive_path = NULL;
-	uint64_t timestamp;
-	int reset_vb = 0;
-	int rv, i;
-
-	if (!r->lm_init) {
-		rv = lm_add_resource_idm(ls, r);
-		if (rv < 0)
-			return rv;
-		r->lm_init = 1;
-	}
-
-	rdi->op.mode = to_idm_mode(ld_mode);
-	if (rv < 0) {
-		log_error("lock_idm invalid mode %d", ld_mode);
-		return -EINVAL;
-	}
-
-	log_debug("S %s R %s lock_idm", ls->name, r->name);
-
-	if (daemon_test) {
-		if (rdi->vb) {
-			vb_out->version = le16_to_cpu(rdi->vb->version);
-			vb_out->flags = le16_to_cpu(rdi->vb->flags);
-			vb_out->r_version = le32_to_cpu(rdi->vb->r_version);
-		}
-		return 0;
-	}
-
-	rdi->op.timeout = IDM_TIMEOUT;
-
-	/*
-	 * Generate the UUID string, for RT_VG, it only needs to generate
-	 * UUID string for VG level, for RT_LV, it needs to generate
-	 * UUID strings for both VG and LV levels.  At the end, these IDs
-	 * are used as identifier for IDM in drive firmware.
-	 */
-	if (r->type == LD_RT_VG || r->type == LD_RT_LV)
-		log_debug("S %s R %s VG uuid %s", ls->name, r->name, ls->vg_uuid);
-	if (r->type == LD_RT_LV)
-		log_debug("S %s R %s LV uuid %s", ls->name, r->name, lv_uuid);
-
-	memset(&rdi->id, 0x0, sizeof(struct idm_lock_id));
-	if (r->type == LD_RT_VG) {
-		uuid_read_format(rdi->id.vg_uuid, ls->vg_uuid);
-	} else if (r->type == LD_RT_LV) {
-		uuid_read_format(rdi->id.vg_uuid, ls->vg_uuid);
-		uuid_read_format(rdi->id.lv_uuid, lv_uuid);
-	}
-
-	/*
-	 * Establish the drive path list for lock, since different lock type
-	 * has different drive list; the GL lock uses the global pv list,
-	 * the VG lock uses the pv list spanned for the whole volume group,
-	 * the LV lock uses the pv list for the logical volume.
-	 */
-	switch (r->type) {
-	case LD_RT_GL:
-		drive_path = glb_lock_op.drives;
-		rdi->op.drive_num = glb_lock_op.drive_num;
-		break;
-	case LD_RT_VG:
-		drive_path = (char **)ls->pvs.path;
-		rdi->op.drive_num = ls->pvs.num;
-		break;
-	case LD_RT_LV:
-		drive_path = (char **)pvs->path;
-		rdi->op.drive_num = pvs->num;
-		break;
-	default:
-		break;
-	}
-
-	if (!drive_path) {
-		log_error("S %s R %s cannot find the valid drive path array",
-			  ls->name, r->name);
-		return -EINVAL;
-	}
-
-	if (rdi->op.drive_num >= ILM_DRIVE_MAX_NUM) {
-		log_error("S %s R %s exceeds limitation for drive path array",
-			  ls->name, r->name);
-		return -EINVAL;
-	}
-
-	for (i = 0; i < rdi->op.drive_num; i++)
-		rdi->op.drives[i] = drive_path[i];
-
-	log_debug("S %s R %s mode %d drive_num %d timeout %d",
-		  ls->name, r->name, rdi->op.mode,
-		  rdi->op.drive_num, rdi->op.timeout);
-
-	for (i = 0; i < rdi->op.drive_num; i++)
-		log_debug("S %s R %s drive path[%d] %s",
-			  ls->name, r->name, i, rdi->op.drives[i]);
-
-	rv = ilm_lock(lmi->sock, &rdi->id, &rdi->op);
-	if (rv < 0) {
-		log_debug("S %s R %s lock_idm acquire mode %d rv %d",
-			  ls->name, r->name, ld_mode, rv);
-		return -ELOCKIO;
-	}
-
-	if (rdi->vb) {
-		rv = ilm_read_lvb(lmi->sock, &rdi->id, (char *)&timestamp,
-				  sizeof(uint64_t));
-
-		/*
-		 * If fail to read value block, which might be caused by drive
-		 * failure, notify up layer to invalidate metadata.
-		 */
-		if (rv < 0) {
-			log_error("S %s R %s lock_idm get_lvb error %d",
-				  ls->name, r->name, rv);
-			reset_vb = 1;
-
-			/* Reset timestamp */
-			rdi->vb_timestamp = 0;
-
-		/*
-		 * If the cached timestamp mismatches with the stored value
-		 * in the IDM, this means another host has updated timestamp
-		 * for the new VB.  Let's reset VB and notify up layer to
-		 * invalidate metadata.
-		 */
-		} else if (rdi->vb_timestamp != timestamp) {
-			log_debug("S %s R %s lock_idm get lvb timestamp %lu:%lu",
-				  ls->name, r->name, rdi->vb_timestamp,
-				  timestamp);
-
-			rdi->vb_timestamp = timestamp;
-			reset_vb = 1;
-		}
-
-		if (reset_vb == 1) {
-			memset(rdi->vb, 0, sizeof(struct val_blk));
-			memset(vb_out, 0, sizeof(struct val_blk));
-
-			/*
-			 * The lock is still acquired, but the vb values has
-			 * been invalidated.
-			 */
-			rv = 0;
-			goto out;
-		}
-
-		/* Otherwise, copy the cached VB to up layer */
-		memcpy(vb_out, rdi->vb, sizeof(struct val_blk));
-	}
-
-out:
-	return rv;
-}
-
-int lm_convert_idm(struct lockspace *ls, struct resource *r,
-		   int ld_mode, uint32_t r_version)
-{
-	struct lm_idm *lmi = (struct lm_idm *)ls->lm_data;
-	struct rd_idm *rdi = (struct rd_idm *)r->lm_data;
-	int mode, rv;
-
-	if (rdi->vb && r_version && (r->mode == LD_LK_EX)) {
-		if (!rdi->vb->version) {
-			/* first time vb has been written */
-			rdi->vb->version = VAL_BLK_VERSION;
-		}
-		rdi->vb->r_version = r_version;
-
-		log_debug("S %s R %s convert_idm set r_version %u",
-			  ls->name, r->name, r_version);
-
-		lm_idm_update_vb_timestamp(&rdi->vb_timestamp);
-		log_debug("S %s R %s convert_idm vb %x %x %u timestamp %lu",
-			  ls->name, r->name, rdi->vb->version, rdi->vb->flags,
-			  rdi->vb->r_version, rdi->vb_timestamp);
-	}
-
-	mode = to_idm_mode(ld_mode);
-	if (mode < 0) {
-		log_error("S %s R %s convert_idm invalid mode %d",
-			  ls->name, r->name, ld_mode);
-		return -EINVAL;
-	}
-
-	log_debug("S %s R %s convert_idm", ls->name, r->name);
-
-	if (daemon_test)
-		return 0;
-
-	if (rdi->vb && r_version && (r->mode == LD_LK_EX)) {
-		rv = ilm_write_lvb(lmi->sock, &rdi->id,
-				   (char *)rdi->vb_timestamp, sizeof(uint64_t));
-		if (rv < 0) {
-			log_error("S %s R %s convert_idm write lvb error %d",
-				  ls->name, r->name, rv);
-			return -ELMERR;
-		}
-	}
-
-	rv = ilm_convert(lmi->sock, &rdi->id, mode);
-	if (rv < 0)
-		log_error("S %s R %s convert_idm convert error %d",
-			  ls->name, r->name, rv);
-
-	return rv;
-}
-
-int lm_unlock_idm(struct lockspace *ls, struct resource *r,
-		  uint32_t r_version, uint32_t lmu_flags)
-{
-	struct lm_idm *lmi = (struct lm_idm *)ls->lm_data;
-	struct rd_idm *rdi = (struct rd_idm *)r->lm_data;
-	int rv;
-
-	if (rdi->vb && r_version && (r->mode == LD_LK_EX)) {
-		if (!rdi->vb->version) {
-			/* first time vb has been written */
-			rdi->vb->version = VAL_BLK_VERSION;
-		}
-		if (r_version)
-			rdi->vb->r_version = r_version;
-
-		lm_idm_update_vb_timestamp(&rdi->vb_timestamp);
-		log_debug("S %s R %s unlock_idm vb %x %x %u timestamp %lu",
-			  ls->name, r->name, rdi->vb->version, rdi->vb->flags,
-			  rdi->vb->r_version, rdi->vb_timestamp);
-	}
-
-	log_debug("S %s R %s unlock_idm", ls->name, r->name);
-
-	if (daemon_test)
-		return 0;
-
-	if (rdi->vb && r_version && (r->mode == LD_LK_EX)) {
-		rv = ilm_write_lvb(lmi->sock, &rdi->id,
-				   (char *)&rdi->vb_timestamp, sizeof(uint64_t));
-		if (rv < 0) {
-			log_error("S %s R %s unlock_idm set_lvb error %d",
-				  ls->name, r->name, rv);
-			return -ELMERR;
-		}
-	}
-
-	rv = ilm_unlock(lmi->sock, &rdi->id);
-	if (rv < 0)
-		log_error("S %s R %s unlock_idm error %d", ls->name, r->name, rv);
-
-	return rv;
-}
-
-int lm_hosts_idm(struct lockspace *ls, int notify)
-{
-	struct resource *r;
-	struct lm_idm *lmi = (struct lm_idm *)ls->lm_data;
-	struct rd_idm *rdi;
-	int count, self, found_others = 0;
-	int rv;
-
-	list_for_each_entry(r, &ls->resources, list) {
-		if (!r->lm_init)
-			continue;
-
-		rdi = (struct rd_idm *)r->lm_data;
-
-		rv = ilm_get_host_count(lmi->sock, &rdi->id, &rdi->op,
-					&count, &self);
-		if (rv < 0) {
-			log_error("S %s lm_hosts_idm error %d", ls->name, rv);
-			return rv;
-		}
-
-		/* Fixup: need to reduce self count */
-		if (count > found_others)
-			found_others = count;
-	}
-
-	return found_others;
-}
-
-int lm_get_lockspaces_idm(struct list_head *ls_rejoin)
-{
-	/* TODO: Need to add support for adoption. */
-	return -1;
-}
-
-int lm_is_running_idm(void)
-{
-	int sock, rv;
-
-	if (daemon_test)
-		return gl_use_idm;
-
-	rv = ilm_connect(&sock);
-	if (rv < 0) {
-		log_error("Fail to connect seagate IDM lock manager %d", rv);
-		return 0;
-	}
-
-	ilm_disconnect(sock);
-	return 1;
-}

daemons/lvmlockd/lvmlockd-internal.h

@@ -11,8 +11,6 @@
 #ifndef _LVM_LVMLOCKD_INTERNAL_H
 #define _LVM_LVMLOCKD_INTERNAL_H
 
-#include "base/memory/container_of.h"
-
 #define MAX_NAME 64
 #define MAX_ARGS 64
 
@@ -20,7 +18,6 @@
 #define R_NAME_GL          "GLLK"
 #define R_NAME_VG          "VGLK"
 #define S_NAME_GL_DLM      "lvm_global"
-#define S_NAME_GL_IDM      "lvm_global"
 #define LVM_LS_PREFIX      "lvm_"           /* ls name is prefix + vg_name */
 /* global lockspace name for sanlock is a vg name */
 
@@ -30,7 +27,6 @@ enum {
 	LD_LM_UNUSED = 1, /* place holder so values match lib/locking/lvmlockd.h */
 	LD_LM_DLM = 2,
 	LD_LM_SANLOCK = 3,
-	LD_LM_IDM = 4,
 };
 
 /* operation types */
@@ -57,8 +53,6 @@ enum {
 	LD_OP_KILL_VG,
 	LD_OP_DROP_VG,
 	LD_OP_BUSY,
-	LD_OP_QUERY_LOCK,
-	LD_OP_REFRESH_LV,
 };
 
 /* resource types */
@@ -111,7 +105,6 @@ struct client {
 #define LD_AF_WARN_GL_REMOVED	   0x00020000
 #define LD_AF_LV_LOCK              0x00040000
 #define LD_AF_LV_UNLOCK            0x00080000
-#define LD_AF_SH_EXISTS            0x00100000
 
 /*
  * Number of times to repeat a lock request after
@@ -120,11 +113,6 @@ struct client {
  */
 #define DEFAULT_MAX_RETRIES 4
 
-struct pvs {
-	char **path;
-	int num;
-};
-
 struct action {
 	struct list_head list;
 	uint32_t client_id;
@@ -139,7 +127,6 @@ struct action {
 	int max_retries;
 	int result;
 	int lm_rv;			/* return value from lm_ function */
-	char *path;
 	char vg_uuid[64];
 	char vg_name[MAX_NAME+1];
 	char lv_name[MAX_NAME+1];
@@ -147,7 +134,6 @@ struct action {
 	char vg_args[MAX_ARGS+1];
 	char lv_args[MAX_ARGS+1];
 	char vg_sysid[MAX_NAME+1];
-	struct pvs pvs;			/* PV list for idm */
 };
 
 struct resource {
@@ -155,7 +141,6 @@ struct resource {
 	char name[MAX_NAME+1];		/* vg name or lv name */
 	int8_t type;			/* resource type LD_RT_ */
 	int8_t mode;
-	int8_t adopt_mode;
 	unsigned int sh_count;		/* number of sh locks on locks list */
 	uint32_t version;
 	uint32_t last_client_id;	/* last client_id to lock or unlock resource */
@@ -189,10 +174,7 @@ struct lockspace {
 	int8_t lm_type;			/* lock manager: LM_DLM, LM_SANLOCK */
 	void *lm_data;
 	uint64_t host_id;
-	uint64_t free_lock_offset;	/* for sanlock, start search for free lock here */
+	uint64_t free_lock_offset;	/* start search for free lock here */
-	int free_lock_sector_size;	/* for sanlock */
-	int free_lock_align_size;	/* for sanlock */
-	struct pvs pvs;			/* for idm: PV list */
 
 	uint32_t start_client_id;	/* client_id that started the lockspace */
 	pthread_t thread;		/* makes synchronous lock requests */
@@ -228,6 +210,10 @@ struct val_blk {
 /* lm_unlock flags */
 #define LMUF_FREE_VG 0x00000001
 
+#define container_of(ptr, type, member) ({                      \
+	const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
+	(type *)( (char *)__mptr - offsetof(type,member) );})
+
 static inline void INIT_LIST_HEAD(struct list_head *list)
 {
 	list->next = list;
@@ -334,13 +320,10 @@ static inline int list_empty(const struct list_head *head)
 EXTERN int gl_type_static;
 EXTERN int gl_use_dlm;
 EXTERN int gl_use_sanlock;
-EXTERN int gl_use_idm;
 EXTERN int gl_vg_removed;
 EXTERN char gl_lsname_dlm[MAX_NAME+1];
 EXTERN char gl_lsname_sanlock[MAX_NAME+1];
-EXTERN char gl_lsname_idm[MAX_NAME+1];
 EXTERN int global_dlm_lockspace_exists;
-EXTERN int global_idm_lockspace_exists;
 
 EXTERN int daemon_test; /* run as much as possible without a live lock manager */
 EXTERN int daemon_debug;
@@ -404,8 +387,6 @@ int lm_get_lockspaces_dlm(struct list_head *ls_rejoin);
 int lm_data_size_dlm(void);
 int lm_is_running_dlm(void);
 int lm_hosts_dlm(struct lockspace *ls, int notify);
-int lm_refresh_lv_start_dlm(struct action *act);
-int lm_refresh_lv_check_dlm(struct action *act);
 
 static inline int lm_support_dlm(void)
 {
@@ -482,22 +463,12 @@ static inline int lm_hosts_dlm(struct lockspace *ls, int notify)
 	return 0;
 }
 
-static inline int lm_refresh_lv_start_dlm(struct action *act)
-{
-	return 0;
-}
-
-static inline int lm_refresh_lv_check_dlm(struct action *act)
-{
-	return 0;
-}
-
 #endif /* dlm support */
 
 #ifdef LOCKDSANLOCK_SUPPORT
 
 int lm_init_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_args);
-int lm_init_lv_sanlock(char *ls_name, char *vg_name, char *lv_name, char *vg_args, char *lv_args, int sector_size, int align_size, uint64_t free_offset);
+int lm_init_lv_sanlock(char *ls_name, char *vg_name, char *lv_name, char *vg_args, char *lv_args, uint64_t free_offset);
 int lm_free_lv_sanlock(struct lockspace *ls, struct resource *r);
 int lm_rename_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_args);
 int lm_prepare_lockspace_sanlock(struct lockspace *ls);
@@ -517,7 +488,7 @@ int lm_gl_is_enabled(struct lockspace *ls);
 int lm_get_lockspaces_sanlock(struct list_head *ls_rejoin);
 int lm_data_size_sanlock(void);
 int lm_is_running_sanlock(void);
-int lm_find_free_lock_sanlock(struct lockspace *ls, uint64_t *free_offset, int *sector_size, int *align_size);
+int lm_find_free_lock_sanlock(struct lockspace *ls, uint64_t *free_offset);
 
 static inline int lm_support_sanlock(void)
 {
@@ -531,7 +502,7 @@ static inline int lm_init_vg_sanlock(char *ls_name, char *vg_name, uint32_t flag
 	return -1;
 }
 
-static inline int lm_init_lv_sanlock(char *ls_name, char *vg_name, char *lv_name, char *vg_args, char *lv_args, int sector_size, int align_size, uint64_t free_offset)
+static inline int lm_init_lv_sanlock(char *ls_name, char *vg_name, char *lv_name, char *vg_args, char *lv_args, uint64_t free_offset)
 {
 	return -1;
 }
@@ -619,7 +590,7 @@ static inline int lm_is_running_sanlock(void)
 	return 0;
 }
 
-static inline int lm_find_free_lock_sanlock(struct lockspace *ls, uint64_t *free_offset, int *sector_size, int *align_size)
+static inline int lm_find_free_lock_sanlock(struct lockspace *ls, uint64_t *free_offset)
 {
 	return -1;
 }
@@ -631,102 +602,4 @@ static inline int lm_support_sanlock(void)
 
 #endif /* sanlock support */
 
-#ifdef LOCKDIDM_SUPPORT
-
-int lm_data_size_idm(void);
-int lm_init_vg_idm(char *ls_name, char *vg_name, uint32_t flags, char *vg_args);
-int lm_prepare_lockspace_idm(struct lockspace *ls);
-int lm_add_lockspace_idm(struct lockspace *ls, int adopt);
-int lm_rem_lockspace_idm(struct lockspace *ls, int free_vg);
-int lm_lock_idm(struct lockspace *ls, struct resource *r, int ld_mode,
-		struct val_blk *vb_out, char *lv_uuid, struct pvs *pvs,
-		int adopt);
-int lm_convert_idm(struct lockspace *ls, struct resource *r,
-		   int ld_mode, uint32_t r_version);
-int lm_unlock_idm(struct lockspace *ls, struct resource *r,
-		  uint32_t r_version, uint32_t lmu_flags);
-int lm_hosts_idm(struct lockspace *ls, int notify);
-int lm_get_lockspaces_idm(struct list_head *ls_rejoin);
-int lm_is_running_idm(void);
-int lm_rem_resource_idm(struct lockspace *ls, struct resource *r);
-
-static inline int lm_support_idm(void)
-{
-	return 1;
-}
-
-#else
-
-static inline int lm_data_size_idm(void)
-{
-	return -1;
-}
-
-static inline int lm_init_vg_idm(char *ls_name, char *vg_name, uint32_t flags,
-			  char *vg_args)
-{
-	return -1;
-}
-
-static inline int lm_prepare_lockspace_idm(struct lockspace *ls)
-{
-	return -1;
-}
-
-static inline int lm_add_lockspace_idm(struct lockspace *ls, int adopt)
-{
-	return -1;
-}
-
-static inline int lm_rem_lockspace_idm(struct lockspace *ls, int free_vg)
-{
-	return -1;
-}
-
-static inline int lm_lock_idm(struct lockspace *ls, struct resource *r, int ld_mode,
-		       struct val_blk *vb_out, char *lv_uuid, struct pvs *pvs,
-		       int adopt)
-{
-	return -1;
-}
-
-static inline int lm_convert_idm(struct lockspace *ls, struct resource *r,
-			  int ld_mode, uint32_t r_version)
-{
-	return -1;
-}
-
-static inline int lm_unlock_idm(struct lockspace *ls, struct resource *r,
-			 uint32_t r_version, uint32_t lmu_flags)
-{
-	return -1;
-}
-
-static inline int lm_hosts_idm(struct lockspace *ls, int notify)
-{
-	return -1;
-}
-
-static inline int lm_get_lockspaces_idm(struct list_head *ls_rejoin)
-{
-	return -1;
-}
-
-static inline int lm_is_running_idm(void)
-{
-	return 0;
-}
-
-static inline int lm_rem_resource_idm(struct lockspace *ls, struct resource *r)
-{
-	return -1;
-}
-
-static inline int lm_support_idm(void)
-{
-	return 0;
-}
-
-#endif /* Seagate IDM support */
-
 #endif	/* _LVM_LVMLOCKD_INTERNAL_H */

daemons/lvmlockd/lvmlockd-sanlock.c

@@ -11,42 +11,23 @@
 #define _XOPEN_SOURCE 500  /* pthread */
 #define _ISOC99_SOURCE
 
-#include "tools/tool.h"
+#include "tool.h"
 
 #include "daemon-server.h"
-#include "lib/mm/xlate.h"
+#include "xlate.h"
 
 #include "lvmlockd-internal.h"
-#include "daemons/lvmlockd/lvmlockd-client.h"
+#include "lvmlockd-client.h"
 
 #include "sanlock.h"
 #include "sanlock_rv.h"
 #include "sanlock_admin.h"
 #include "sanlock_resource.h"
 
-/* FIXME: these are copied from sanlock.h only until
-   an updated version of sanlock is available with them. */
-#define SANLK_RES_ALIGN1M       0x00000010
-#define SANLK_RES_ALIGN2M       0x00000020
-#define SANLK_RES_ALIGN4M       0x00000040
-#define SANLK_RES_ALIGN8M       0x00000080
-#define SANLK_RES_SECTOR512     0x00000100
-#define SANLK_RES_SECTOR4K      0x00000200
-#define SANLK_LSF_ALIGN1M       0x00000010
-#define SANLK_LSF_ALIGN2M       0x00000020
-#define SANLK_LSF_ALIGN4M       0x00000040
-#define SANLK_LSF_ALIGN8M       0x00000080
-#define SANLK_LSF_SECTOR512     0x00000100
-#define SANLK_LSF_SECTOR4K      0x00000200
-
 #include <stddef.h>
 #include <poll.h>
 #include <errno.h>
 #include <syslog.h>
-#include <blkid/blkid.h>
-#include <sys/sysmacros.h>
-
-#define ONE_MB 1048576
 
 /*
 -------------------------------------------------------------------------------
@@ -158,7 +139,6 @@ release all the leases for the VG.
 
 struct lm_sanlock {
 	struct sanlk_lockspace ss;
-	int sector_size;
 	int align_size;
 	int sock; /* sanlock daemon connection */
 };
@@ -221,23 +201,13 @@ int lm_data_size_sanlock(void)
  * ...
  */
 
+#define LS_BEGIN 0
 #define GL_LOCK_BEGIN UINT64_C(65)
 #define VG_LOCK_BEGIN UINT64_C(66)
 #define LV_LOCK_BEGIN UINT64_C(67)
 
 static uint64_t daemon_test_lv_count;
 
-/*
- * Copy a null-terminated string "str" into a fixed
- * size (SANLK_NAME_LEN) struct field "buf" which is
- * not null terminated.
- */
-static void strcpy_name_len(char *buf, char *str, int len)
-{
-	/* coverity[buffer_size_warning] */
-	strncpy(buf, str, SANLK_NAME_LEN);
-}
-
 static int lock_lv_name_from_args(char *vg_args, char *lock_lv_name)
 {
 	return last_string_from_args(vg_args, lock_lv_name);
@@ -318,8 +288,7 @@ static int read_host_id_file(void)
 		}
 	}
 	if (fclose(file))
-		log_debug("Failed to fclose host id file %s (%s).",
+		log_error("failed to close host id file %s", daemon_host_id_file);
-			  daemon_host_id_file, strerror(errno));
 out:
 	log_debug("host_id %d from %s", host_id, daemon_host_id_file);
 	return host_id;
@@ -355,154 +324,6 @@ fail:
 	return rv;
 }
 
-static void _read_sysfs_size(dev_t devno, const char *name, unsigned int *val)
-{
-	char path[PATH_MAX];
-	char buf[32];
-	FILE *fp;
-	size_t len;
-
-	snprintf(path, sizeof(path), "/sys/dev/block/%d:%d/queue/%s",
-		 (int)major(devno), (int)minor(devno), name);
-
-	if (!(fp = fopen(path, "r")))
-		return;
-
-	if (!fgets(buf, sizeof(buf), fp))
-		goto out;
-
-	if ((len = strlen(buf)) && buf[len - 1] == '\n')
-		buf[--len] = '\0';
-
-	if (strlen(buf))
-		*val = atoi(buf);
-out:
-	if (fclose(fp))
-		log_debug("Failed to fclose host id file %s (%s).", path, strerror(errno));
-
-}
-
-/* Select sector/align size for a new VG based on what the device reports for
-   sector size of the lvmlock LV. */
-
-static int get_sizes_device(char *path, int *sector_size, int *align_size)
-{
-	unsigned int physical_block_size = 0;
-	unsigned int logical_block_size = 0;
-	struct stat st;
-	int rv;
-
-	rv = stat(path, &st);
-	if (rv < 0) {
-		log_error("Failed to stat device to get block size %s %d", path, errno);
-		return -1;
-	}
-
-	_read_sysfs_size(st.st_rdev, "physical_block_size", &physical_block_size);
-	_read_sysfs_size(st.st_rdev, "logical_block_size", &logical_block_size);
-
-	if ((physical_block_size == 512) && (logical_block_size == 512)) {
-		*sector_size = 512;
-		*align_size = ONE_MB;
-		return 0;
-	}
-
-	if ((physical_block_size == 4096) && (logical_block_size == 4096)) {
-		*sector_size = 4096;
-		*align_size = 8 * ONE_MB;
-		return 0;
-	}
-
-	if (physical_block_size && (physical_block_size != 512) && (physical_block_size != 4096)) {
-		log_warn("WARNING: invalid block sizes physical %u logical %u for %s",
-			 physical_block_size, logical_block_size, path);
-		physical_block_size = 0;
-	}
-
-	if (logical_block_size && (logical_block_size != 512) && (logical_block_size != 4096)) {
-		log_warn("WARNING: invalid block sizes physical %u logical %u for %s",
-			 physical_block_size, logical_block_size, path);
-		logical_block_size = 0;
-	}
-
-	if (!physical_block_size && !logical_block_size) {
-		log_error("Failed to get a block size for %s", path);
-		return -1;
-	}
-
-	if (!physical_block_size || !logical_block_size) {
-		log_warn("WARNING: incomplete block size information physical %u logical %u for %s",
-			 physical_block_size, logical_block_size, path);
-		if (!physical_block_size)
-			physical_block_size = logical_block_size;
-		if (!logical_block_size)
-			logical_block_size = physical_block_size;
-	}
-
-	if ((logical_block_size == 4096) && (physical_block_size == 512)) {
-		log_warn("WARNING: mixed block sizes physical %u logical %u (using 4096) for %s",
-			 physical_block_size, logical_block_size, path);
-		*sector_size = 4096;
-		*align_size = 8 * ONE_MB;
-		return 0;
-	}
-
-	if ((physical_block_size == 4096) && (logical_block_size == 512)) {
-		log_warn("WARNING: mixed block sizes physical %u logical %u (using 4096) for %s",
-			 physical_block_size, logical_block_size, path);
-		*sector_size = 4096;
-		*align_size = 8 * ONE_MB;
-		return 0;
-	}
-
-	if (physical_block_size == 512) {
-		*sector_size = 512;
-		*align_size = ONE_MB;
-		return 0;
-	}
-
-	if (physical_block_size == 4096) {
-		*sector_size = 4096;
-		*align_size = 8 * ONE_MB;
-		return 0;
-	}
-
-	log_error("Failed to get a block size for %s", path);
-	return -1;
-}
-
-
-/* Get the sector/align sizes that were used to create an existing VG.
-   sanlock encoded this in the lockspace/resource structs on disk. */
-
-static int get_sizes_lockspace(char *path, int *sector_size, int *align_size)
-{
-	struct sanlk_lockspace ss;
-	uint32_t io_timeout = 0;
-	int rv;
-
-	memset(&ss, 0, sizeof(ss));
-	memcpy(ss.host_id_disk.path, path, SANLK_PATH_LEN);
-	ss.host_id_disk.offset = 0;
-
-	rv = sanlock_read_lockspace(&ss, 0, &io_timeout);
-	if (rv < 0) {
-		log_error("get_sizes_lockspace %s error %d", path, rv);
-		return rv;
-	}
-
-	if ((ss.flags & SANLK_LSF_SECTOR4K) && (ss.flags & SANLK_LSF_ALIGN8M)) {
-		*sector_size = 4096;
-		*align_size = 8 * ONE_MB;
-	} else if ((ss.flags & SANLK_LSF_SECTOR512) && (ss.flags & SANLK_LSF_ALIGN1M)) {
-		*sector_size = 512;
-		*align_size = ONE_MB;
-	}
-
-	log_debug("get_sizes_lockspace found %d %d", *sector_size, *align_size);
-	return 0;
-}
-
 /*
  * vgcreate
  *
@@ -511,21 +332,18 @@ static int get_sizes_lockspace(char *path, int *sector_size, int *align_size)
  * version and lv name, and returns the real lock_args in vg_args.
  */
 
-#define MAX_VERSION 16
-
 int lm_init_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_args)
 {
 	struct sanlk_lockspace ss;
 	struct sanlk_resourced rd;
 	struct sanlk_disk disk;
 	char lock_lv_name[MAX_ARGS+1];
-	char lock_args_version[MAX_VERSION+1];
+	char lock_args_version[MAX_ARGS+1];
 	const char *gl_name = NULL;
 	uint32_t daemon_version;
 	uint32_t daemon_proto;
 	uint64_t offset;
-	int sector_size = 0;
+	int align_size;
-	int align_size = 0;
 	int i, rv;
 
 	memset(&ss, 0, sizeof(ss));
@@ -539,7 +357,7 @@ int lm_init_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_ar
 		return -EARGS;
 	}
 
-	snprintf(lock_args_version, MAX_VERSION, "%u.%u.%u",
+	snprintf(lock_args_version, MAX_ARGS, "%u.%u.%u",
 		 VG_LOCK_ARGS_MAJOR, VG_LOCK_ARGS_MINOR, VG_LOCK_ARGS_PATCH);
 
 	/* see comment above about input vg_args being only lock_lv_name */
@@ -556,9 +374,7 @@ int lm_init_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_ar
 	if (daemon_test) {
 		if (!gl_lsname_sanlock[0])
 			strncpy(gl_lsname_sanlock, ls_name, MAX_NAME);
-		rv = snprintf(vg_args, MAX_ARGS, "%s:%s", lock_args_version, lock_lv_name);
+		snprintf(vg_args, MAX_ARGS, "%s:%s", lock_args_version, lock_lv_name);
-		if (rv >= MAX_ARGS)
-			log_debug("init_vg_san vg_args may be too long %d %s", rv, vg_args);
 		return 0;
 	}
 
@@ -571,25 +387,23 @@ int lm_init_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_ar
 	log_debug("sanlock daemon version %08x proto %08x",
 		  daemon_version, daemon_proto);
 
-	/* Nothing formatted on disk yet, use what the device reports. */
+	rv = sanlock_align(&disk);
-	rv = get_sizes_device(disk.path, &sector_size, &align_size);
+	if (rv <= 0) {
-	if (rv < 0) {
 		if (rv == -EACCES) {
 			log_error("S %s init_vg_san sanlock error -EACCES: no permission to access %s",
 				  ls_name, disk.path);
 			return -EDEVOPEN;
 		} else {
-			log_error("S %s init_vg_san sanlock error %d trying to get sector/align size of %s",
+			log_error("S %s init_vg_san sanlock error %d trying to get align size of %s",
 				  ls_name, rv, disk.path);
 			return -EARGS;
 		}
-	}
+	} else
+		align_size = rv;
 
-	strcpy_name_len(ss.name, ls_name, SANLK_NAME_LEN);
+	strncpy(ss.name, ls_name, SANLK_NAME_LEN);
 	memcpy(ss.host_id_disk.path, disk.path, SANLK_PATH_LEN);
-	ss.host_id_disk.offset = 0;
+	ss.host_id_disk.offset = LS_BEGIN * align_size;
-	ss.flags = (sector_size == 4096) ? (SANLK_LSF_SECTOR4K | SANLK_LSF_ALIGN8M) :
-					   (SANLK_LSF_SECTOR512 | SANLK_LSF_ALIGN1M);
 
 	rv = sanlock_write_lockspace(&ss, 0, 0, sanlock_io_timeout);
 	if (rv < 0) {
@@ -618,12 +432,10 @@ int lm_init_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_ar
 		gl_name = R_NAME_GL;
 
 	memcpy(rd.rs.lockspace_name, ss.name, SANLK_NAME_LEN);
-	strcpy_name_len(rd.rs.name, (char *)gl_name, SANLK_NAME_LEN);
+	strncpy(rd.rs.name, gl_name, SANLK_NAME_LEN);
 	memcpy(rd.rs.disks[0].path, disk.path, SANLK_PATH_LEN);
 	rd.rs.disks[0].offset = align_size * GL_LOCK_BEGIN;
 	rd.rs.num_disks = 1;
-	rd.rs.flags = (sector_size == 4096) ? (SANLK_RES_SECTOR4K | SANLK_RES_ALIGN8M) :
-					      (SANLK_RES_SECTOR512 | SANLK_RES_ALIGN1M);
 
 	rv = sanlock_write_resource(&rd.rs, 0, 0, 0);
 	if (rv < 0) {
@@ -633,12 +445,10 @@ int lm_init_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_ar
 	}
 
 	memcpy(rd.rs.lockspace_name, ss.name, SANLK_NAME_LEN);
-	strcpy_name_len(rd.rs.name, (char *)R_NAME_VG, SANLK_NAME_LEN);
+	strncpy(rd.rs.name, R_NAME_VG, SANLK_NAME_LEN);
 	memcpy(rd.rs.disks[0].path, disk.path, SANLK_PATH_LEN);
 	rd.rs.disks[0].offset = align_size * VG_LOCK_BEGIN;
 	rd.rs.num_disks = 1;
-	rd.rs.flags = (sector_size == 4096) ? (SANLK_RES_SECTOR4K | SANLK_RES_ALIGN8M) :
-					      (SANLK_RES_SECTOR512 | SANLK_RES_ALIGN1M);
 
 	rv = sanlock_write_resource(&rd.rs, 0, 0, 0);
 	if (rv < 0) {
@@ -650,9 +460,7 @@ int lm_init_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_ar
 	if (!strcmp(gl_name, R_NAME_GL))
 		strncpy(gl_lsname_sanlock, ls_name, MAX_NAME);
  
-	rv = snprintf(vg_args, MAX_ARGS, "%s:%s", lock_args_version, lock_lv_name);
+	snprintf(vg_args, MAX_ARGS, "%s:%s", lock_args_version, lock_lv_name);
-	if (rv >= MAX_ARGS)
-		log_debug("init_vg_san vg_args may be too long %d %s", rv, vg_args);
 
 	log_debug("S %s init_vg_san done vg_args %s", ls_name, vg_args);
 
@@ -664,11 +472,9 @@ int lm_init_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_ar
 
 	memset(&rd, 0, sizeof(rd));
 	rd.rs.num_disks = 1;
-	rd.rs.flags = (sector_size == 4096) ? (SANLK_RES_SECTOR4K | SANLK_RES_ALIGN8M) :
-					      (SANLK_RES_SECTOR512 | SANLK_RES_ALIGN1M);
 	memcpy(rd.rs.disks[0].path, disk.path, SANLK_PATH_LEN);
-	strcpy_name_len(rd.rs.lockspace_name, ls_name, SANLK_NAME_LEN);
+	strncpy(rd.rs.lockspace_name, ls_name, SANLK_NAME_LEN);
-	strcpy_name_len(rd.rs.name, (char *)"#unused", SANLK_NAME_LEN);
+	strcpy(rd.rs.name, "#unused");
 
 	offset = align_size * LV_LOCK_BEGIN;
 
@@ -704,13 +510,13 @@ int lm_init_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_ar
  */
 
 int lm_init_lv_sanlock(char *ls_name, char *vg_name, char *lv_name,
-		       char *vg_args, char *lv_args,
+		       char *vg_args, char *lv_args, uint64_t free_offset)
-		       int sector_size, int align_size, uint64_t free_offset)
 {
 	struct sanlk_resourced rd;
 	char lock_lv_name[MAX_ARGS+1];
-	char lock_args_version[MAX_VERSION+1];
+	char lock_args_version[MAX_ARGS+1];
 	uint64_t offset;
+	int align_size;
 	int rv;
 
 	memset(&rd, 0, sizeof(rd));
@@ -724,11 +530,11 @@ int lm_init_lv_sanlock(char *ls_name, char *vg_name, char *lv_name,
 		return rv;
 	}
 
-	snprintf(lock_args_version, MAX_VERSION, "%u.%u.%u",
+	snprintf(lock_args_version, MAX_ARGS, "%u.%u.%u",
 		 LV_LOCK_ARGS_MAJOR, LV_LOCK_ARGS_MINOR, LV_LOCK_ARGS_PATCH);
 
 	if (daemon_test) {
-		align_size = ONE_MB;
+		align_size = 1048576;
 		snprintf(lv_args, MAX_ARGS, "%s:%llu",
 			 lock_args_version,
 			 (unsigned long long)((align_size * LV_LOCK_BEGIN) + (align_size * daemon_test_lv_count)));
@@ -736,39 +542,16 @@ int lm_init_lv_sanlock(char *ls_name, char *vg_name, char *lv_name,
 		return 0;
 	}
 
-	strcpy_name_len(rd.rs.lockspace_name, ls_name, SANLK_NAME_LEN);
+	strncpy(rd.rs.lockspace_name, ls_name, SANLK_NAME_LEN);
 	rd.rs.num_disks = 1;
 	if ((rv = build_dm_path(rd.rs.disks[0].path, SANLK_PATH_LEN, vg_name, lock_lv_name)))
 		return rv;
 
-	/*
-	 * These should not usually be zero, maybe only the first time this function is called?
-	 * We need to use the same sector/align sizes that are already being used.
-	 */
-	if (!sector_size || !align_size) {
-		rv = get_sizes_lockspace(rd.rs.disks[0].path, &sector_size, &align_size);
-		if (rv < 0) {
-			log_error("S %s init_lv_san read_lockspace error %d %s",
-				  ls_name, rv, rd.rs.disks[0].path);
-			return rv;
-		}
-
-		if (sector_size)
-			log_debug("S %s init_lv_san found ls sector_size %d align_size %d", ls_name, sector_size, align_size);
-		else {
-			/* use the old method */
 	align_size = sanlock_align(&rd.rs.disks[0]);
 	if (align_size <= 0) {
 		log_error("S %s init_lv_san align error %d", ls_name, align_size);
 		return -EINVAL;
 	}
-			sector_size = (align_size == ONE_MB) ? 512 : 4096;
-			log_debug("S %s init_lv_san found old sector_size %d align_size %d", ls_name, sector_size, align_size);
-		}
-	}
-
-	rd.rs.flags = (sector_size == 4096) ? (SANLK_RES_SECTOR4K | SANLK_RES_ALIGN8M) :
-					      (SANLK_RES_SECTOR512 | SANLK_RES_ALIGN1M);
 
 	if (free_offset)
 		offset = free_offset;
@@ -811,9 +594,7 @@ int lm_init_lv_sanlock(char *ls_name, char *vg_name, char *lv_name,
 			log_debug("S %s init_lv_san %s found unused area at %llu",
 				  ls_name, lv_name, (unsigned long long)offset);
 
-			strcpy_name_len(rd.rs.name, lv_name, SANLK_NAME_LEN);
+			strncpy(rd.rs.name, lv_name, SANLK_NAME_LEN);
-			rd.rs.flags = (sector_size == 4096) ? (SANLK_RES_SECTOR4K | SANLK_RES_ALIGN8M) :
-							      (SANLK_RES_SECTOR512 | SANLK_RES_ALIGN1M);
 
 			rv = sanlock_write_resource(&rd.rs, 0, 0, 0);
 			if (!rv) {
@@ -845,8 +626,7 @@ int lm_rename_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_
 	char lock_lv_name[MAX_ARGS+1];
 	uint64_t offset;
 	uint32_t io_timeout;
-	int sector_size = 0;
+	int align_size;
-	int align_size = 0;
 	int i, rv;
 
 	memset(&disk, 0, sizeof(disk));
@@ -875,13 +655,20 @@ int lm_rename_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_
 	/* FIXME: device is not always ready for us here */
 	sleep(1);
 
+	align_size = sanlock_align(&disk);
+	if (align_size <= 0) {
+		log_error("S %s rename_vg_san bad align size %d %s",
+			  ls_name, align_size, disk.path);
+		return -EINVAL;
+	}
+
 	/*
 	 * Lockspace
 	 */
 
 	memset(&ss, 0, sizeof(ss));
 	memcpy(ss.host_id_disk.path, disk.path, SANLK_PATH_LEN);
-	ss.host_id_disk.offset = 0;
+	ss.host_id_disk.offset = LS_BEGIN * align_size;
 
 	rv = sanlock_read_lockspace(&ss, 0, &io_timeout);
 	if (rv < 0) {
@@ -890,27 +677,7 @@ int lm_rename_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_
 		return rv;
 	}
 
-	if ((ss.flags & SANLK_LSF_SECTOR4K) && (ss.flags & SANLK_LSF_ALIGN8M)) {
+	strncpy(ss.name, ls_name, SANLK_NAME_LEN);
-		sector_size = 4096;
-		align_size = 8 * ONE_MB;
-	} else if ((ss.flags & SANLK_LSF_SECTOR512) && (ss.flags & SANLK_LSF_ALIGN1M)) {
-		sector_size = 512;
-		align_size = ONE_MB;
-	} else {
-		/* use the old method */
-		align_size = sanlock_align(&ss.host_id_disk);
-		if (align_size <= 0) {
-			log_error("S %s rename_vg_san unknown sector/align size for %s",
-				 ls_name, ss.host_id_disk.path);
-			return -1;
-		}
-		sector_size = (align_size == ONE_MB) ? 512 : 4096;
-	}
-
-	if (!sector_size || !align_size)
-		return -1;
-
-	strcpy_name_len(ss.name, ls_name, SANLK_NAME_LEN);
 
 	rv = sanlock_write_lockspace(&ss, 0, 0, sanlock_io_timeout);
 	if (rv < 0) {
@@ -935,7 +702,7 @@ int lm_rename_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_
 		return rv;
 	}
 
-	memcpy(rd.rs.lockspace_name, ss.name, SANLK_NAME_LEN);
+	strncpy(rd.rs.lockspace_name, ss.name, SANLK_NAME_LEN);
 
 	rv = sanlock_write_resource(&rd.rs, 0, 0, 0);
 	if (rv < 0) {
@@ -960,7 +727,7 @@ int lm_rename_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_
 		return rv;
 	}
 
-	memcpy(rd.rs.lockspace_name, ss.name, SANLK_NAME_LEN);
+	strncpy(rd.rs.lockspace_name, ss.name, SANLK_NAME_LEN);
 
 	rv = sanlock_write_resource(&rd.rs, 0, 0, 0);
 	if (rv < 0) {
@@ -994,7 +761,7 @@ int lm_rename_vg_sanlock(char *ls_name, char *vg_name, uint32_t flags, char *vg_
 			break;
 		}
 
-		memcpy(rd.rs.lockspace_name, ss.name, SANLK_NAME_LEN);
+		strncpy(rd.rs.lockspace_name, ss.name, SANLK_NAME_LEN);
 
 		rv = sanlock_write_resource(&rd.rs, 0, 0, 0);
 		if (rv) {
@@ -1020,7 +787,7 @@ int lm_free_lv_sanlock(struct lockspace *ls, struct resource *r)
 	if (daemon_test)
 		return 0;
 
-	strcpy_name_len(rs->name, (char *)"#unused", SANLK_NAME_LEN);
+	strcpy(rs->name, "#unused");
 
 	rv = sanlock_write_resource(rs, 0, 0, 0);
 	if (rv < 0) {
@@ -1054,21 +821,16 @@ int lm_ex_disable_gl_sanlock(struct lockspace *ls)
 	memset(&rd1, 0, sizeof(rd1));
 	memset(&rd2, 0, sizeof(rd2));
 
-	strcpy_name_len(rd1.rs.lockspace_name, ls->name, SANLK_NAME_LEN);
+	strncpy(rd1.rs.lockspace_name, ls->name, SANLK_NAME_LEN);
-	strcpy_name_len(rd1.rs.name, (char *)R_NAME_GL, SANLK_NAME_LEN);
+	strncpy(rd1.rs.name, R_NAME_GL, SANLK_NAME_LEN);
 
-	strcpy_name_len(rd2.rs.lockspace_name, ls->name, SANLK_NAME_LEN);
+	strncpy(rd2.rs.lockspace_name, ls->name, SANLK_NAME_LEN);
-	strcpy_name_len(rd2.rs.name, (char *)R_NAME_GL_DISABLED, SANLK_NAME_LEN);
+	strncpy(rd2.rs.name, R_NAME_GL_DISABLED, SANLK_NAME_LEN);
 
 	rd1.rs.num_disks = 1;
-	memcpy(rd1.rs.disks[0].path, lms->ss.host_id_disk.path, SANLK_PATH_LEN-1);
+	strncpy(rd1.rs.disks[0].path, lms->ss.host_id_disk.path, SANLK_PATH_LEN-1);
 	rd1.rs.disks[0].offset = lms->align_size * GL_LOCK_BEGIN;
 
-	rd1.rs.flags = (lms->sector_size == 4096) ? (SANLK_RES_SECTOR4K | SANLK_RES_ALIGN8M) :
-						    (SANLK_RES_SECTOR512 | SANLK_RES_ALIGN1M);
-	rd2.rs.flags = (lms->sector_size == 4096) ? (SANLK_RES_SECTOR4K | SANLK_RES_ALIGN8M) :
-						    (SANLK_RES_SECTOR512 | SANLK_RES_ALIGN1M);
-
 	rv = sanlock_acquire(lms->sock, -1, 0, 1, &rs1, NULL);
 	if (rv < 0) {
 		log_error("S %s ex_disable_gl_san acquire error %d",
@@ -1123,14 +885,12 @@ int lm_able_gl_sanlock(struct lockspace *ls, int enable)
 
 	memset(&rd, 0, sizeof(rd));
 
-	strcpy_name_len(rd.rs.lockspace_name, ls->name, SANLK_NAME_LEN);
+	strncpy(rd.rs.lockspace_name, ls->name, SANLK_NAME_LEN);
-	strcpy_name_len(rd.rs.name, (char *)gl_name, SANLK_NAME_LEN);
+	strncpy(rd.rs.name, gl_name, SANLK_NAME_LEN);
 
 	rd.rs.num_disks = 1;
-	memcpy(rd.rs.disks[0].path, lms->ss.host_id_disk.path, SANLK_PATH_LEN-1);
+	strncpy(rd.rs.disks[0].path, lms->ss.host_id_disk.path, SANLK_PATH_LEN-1);
 	rd.rs.disks[0].offset = lms->align_size * GL_LOCK_BEGIN;
-	rd.rs.flags = (lms->sector_size == 4096) ? (SANLK_RES_SECTOR4K | SANLK_RES_ALIGN8M) :
-						   (SANLK_RES_SECTOR512 | SANLK_RES_ALIGN1M);
 
 	rv = sanlock_write_resource(&rd.rs, 0, 0, 0);
 	if (rv < 0) {
@@ -1164,20 +924,19 @@ static int gl_is_enabled(struct lockspace *ls, struct lm_sanlock *lms)
 
 	memset(&rd, 0, sizeof(rd));
 
-	strcpy_name_len(rd.rs.lockspace_name, ls->name, SANLK_NAME_LEN);
+	strncpy(rd.rs.lockspace_name, ls->name, SANLK_NAME_LEN);
 
 	/* leave rs.name empty, it is what we're checking */
 
 	rd.rs.num_disks = 1;
-	memcpy(rd.rs.disks[0].path, lms->ss.host_id_disk.path, SANLK_PATH_LEN-1);
+	strncpy(rd.rs.disks[0].path, lms->ss.host_id_disk.path, SANLK_PATH_LEN-1);
 
 	offset = lms->align_size * GL_LOCK_BEGIN;
 	rd.rs.disks[0].offset = offset;
 
 	rv = sanlock_read_resource(&rd.rs, 0);
 	if (rv < 0) {
-		log_error("gl_is_enabled read_resource align_size %d offset %llu error %d",
+		log_error("gl_is_enabled read_resource error %d", rv);
-			  lms->align_size, (unsigned long long)offset, rv);
 		return rv;
 	}
 
@@ -1214,7 +973,7 @@ int lm_gl_is_enabled(struct lockspace *ls)
  * been disabled.)
  */
 
-int lm_find_free_lock_sanlock(struct lockspace *ls, uint64_t *free_offset, int *sector_size, int *align_size)
+int lm_find_free_lock_sanlock(struct lockspace *ls, uint64_t *free_offset)
 {
 	struct lm_sanlock *lms = (struct lm_sanlock *)ls->lm_data;
 	struct sanlk_resourced rd;
@@ -1224,22 +983,15 @@ int lm_find_free_lock_sanlock(struct lockspace *ls, uint64_t *free_offset, int *
 	int round = 0;
 
 	if (daemon_test) {
-		*free_offset = (ONE_MB * LV_LOCK_BEGIN) + (ONE_MB * (daemon_test_lv_count + 1));
+		*free_offset = (1048576 * LV_LOCK_BEGIN) + (1048576 * (daemon_test_lv_count + 1));
-		*sector_size = 512;
-		*align_size = ONE_MB;
 		return 0;
 	}
 
-	*sector_size = lms->sector_size;
-	*align_size = lms->align_size;
-
 	memset(&rd, 0, sizeof(rd));
 
-	strcpy_name_len(rd.rs.lockspace_name, ls->name, SANLK_NAME_LEN);
+	strncpy(rd.rs.lockspace_name, ls->name, SANLK_NAME_LEN);
 	rd.rs.num_disks = 1;
-	memcpy(rd.rs.disks[0].path, lms->ss.host_id_disk.path, SANLK_PATH_LEN-1);
+	strncpy(rd.rs.disks[0].path, lms->ss.host_id_disk.path, SANLK_PATH_LEN-1);
-	rd.rs.flags = (lms->sector_size == 4096) ? (SANLK_RES_SECTOR4K | SANLK_RES_ALIGN8M) :
-						   (SANLK_RES_SECTOR512 | SANLK_RES_ALIGN1M);
 
 	if (ls->free_lock_offset)
 		offset = ls->free_lock_offset;
@@ -1339,8 +1091,6 @@ int lm_prepare_lockspace_sanlock(struct lockspace *ls)
 	char disk_path[SANLK_PATH_LEN];
 	char killpath[SANLK_PATH_LEN];
 	char killargs[SANLK_PATH_LEN];
-	int sector_size = 0;
-	int align_size = 0;
 	int gl_found;
 	int ret, rv;
 
@@ -1410,7 +1160,7 @@ int lm_prepare_lockspace_sanlock(struct lockspace *ls)
 		goto fail;
 	}
 
-	lms = zalloc(sizeof(struct lm_sanlock));
+	lms = malloc(sizeof(struct lm_sanlock));
 	if (!lms) {
 		ret = -ENOMEM;
 		goto fail;
@@ -1419,10 +1169,11 @@ int lm_prepare_lockspace_sanlock(struct lockspace *ls)
 	memset(lsname, 0, sizeof(lsname));
 	strncpy(lsname, ls->name, SANLK_NAME_LEN);
 
+	memset(lms, 0, sizeof(struct lm_sanlock));
 	memcpy(lms->ss.name, lsname, SANLK_NAME_LEN);
 	lms->ss.host_id_disk.offset = 0;
 	lms->ss.host_id = ls->host_id;
-	memcpy(lms->ss.host_id_disk.path, disk_path, SANLK_PATH_LEN-1);
+	strncpy(lms->ss.host_id_disk.path, disk_path, SANLK_PATH_LEN-1);
 
 	if (daemon_test) {
 		if (!gl_lsname_sanlock[0]) {
@@ -1456,34 +1207,13 @@ int lm_prepare_lockspace_sanlock(struct lockspace *ls)
 		goto fail;
 	}
 
-	rv = get_sizes_lockspace(disk_path, &sector_size, &align_size);
+	lms->align_size = sanlock_align(&lms->ss.host_id_disk);
-	if (rv < 0) {
+	if (lms->align_size <= 0) {
-		log_error("S %s prepare_lockspace_san cannot get sector/align sizes %d", lsname, rv);
+		log_error("S %s prepare_lockspace_san align error %d", lsname, lms->align_size);
 		ret = -EMANAGER;
 		goto fail;
 	}
 
-	if (!sector_size) {
-		log_debug("S %s prepare_lockspace_san using old size method", lsname);
-		/* use the old method */
-		align_size = sanlock_align(&lms->ss.host_id_disk);
-		if (align_size <= 0) {
-			log_error("S %s prepare_lockspace_san align error %d", lsname, align_size);
-			ret = -EINVAL;
-			goto fail;
-		}
-		sector_size = (align_size == ONE_MB) ? 512 : 4096;
-		log_debug("S %s prepare_lockspace_san found old sector_size %d align_size %d", lsname, sector_size, align_size);
-	}
-
-	log_debug("S %s prepare_lockspace_san sizes %d %d", lsname, sector_size, align_size);
-
-	lms->align_size = align_size;
-	lms->sector_size = sector_size;
-
-	lms->ss.flags = (sector_size == 4096) ? (SANLK_LSF_SECTOR4K | SANLK_LSF_ALIGN8M) :
-						(SANLK_LSF_SECTOR512 | SANLK_LSF_ALIGN1M);
-
 	gl_found = gl_is_enabled(ls, lms);
 	if (gl_found < 0) {
 		log_error("S %s prepare_lockspace_san gl_enabled error %d", lsname, gl_found);
@@ -1514,6 +1244,7 @@ out:
 fail:
 	if (lms && lms->sock)
 		close(lms->sock);
+	if (lms)
 		free(lms);
 	return ret;
 }
@@ -1576,8 +1307,10 @@ int lm_rem_lockspace_sanlock(struct lockspace *ls, int free_vg)
 		goto out;
 
 	rv = sanlock_rem_lockspace(&lms->ss, 0);
-	if (rv < 0)
+	if (rv < 0) {
 		log_error("S %s rem_lockspace_san error %d", ls->name, rv);
+		return rv;
+	}
 
 	if (free_vg) {
 		/*
@@ -1586,7 +1319,7 @@ int lm_rem_lockspace_sanlock(struct lockspace *ls, int free_vg)
 		 * This shouldn't be generally necessary, but there may some races
 		 * between nodes starting and removing a vg which this could help.
 		 */
-		strcpy_name_len(lms->ss.name, (char *)"#unused", SANLK_NAME_LEN);
+		strncpy(lms->ss.name, "#unused", SANLK_NAME_LEN);
 
 		rv = sanlock_write_lockspace(&lms->ss, 0, 0, sanlock_io_timeout);
 		if (rv < 0) {
@@ -1614,11 +1347,10 @@ static int lm_add_resource_sanlock(struct lockspace *ls, struct resource *r)
 	struct lm_sanlock *lms = (struct lm_sanlock *)ls->lm_data;
 	struct rd_sanlock *rds = (struct rd_sanlock *)r->lm_data;
 
-	strcpy_name_len(rds->rs.lockspace_name, ls->name, SANLK_NAME_LEN);
+	strncpy(rds->rs.lockspace_name, ls->name, SANLK_NAME_LEN);
-	strcpy_name_len(rds->rs.name, r->name, SANLK_NAME_LEN);
+	strncpy(rds->rs.name, r->name, SANLK_NAME_LEN);
 	rds->rs.num_disks = 1;
 	memcpy(rds->rs.disks[0].path, lms->ss.host_id_disk.path, SANLK_PATH_LEN);
-	rds->rs.flags = (lms->sector_size == 4096) ? (SANLK_RES_SECTOR4K | SANLK_RES_ALIGN8M) : (SANLK_RES_SECTOR512 | SANLK_RES_ALIGN1M);
 
 	if (r->type == LD_RT_GL)
 		rds->rs.disks[0].offset = GL_LOCK_BEGIN * lms->align_size;
@@ -1628,9 +1360,10 @@ static int lm_add_resource_sanlock(struct lockspace *ls, struct resource *r)
 	/* LD_RT_LV offset is set in each lm_lock call from lv_args. */
 
 	if (r->type == LD_RT_GL || r->type == LD_RT_VG) {
-		rds->vb = zalloc(sizeof(struct val_blk));
+		rds->vb = malloc(sizeof(struct val_blk));
 		if (!rds->vb)
 			return -ENOMEM;
+		memset(rds->vb, 0, sizeof(struct val_blk));
 	}
 
 	return 0;
@@ -1642,6 +1375,7 @@ int lm_rem_resource_sanlock(struct lockspace *ls, struct resource *r)
 
 	/* FIXME: assert r->mode == UN or unlock if it's not? */
 
+	if (rds->vb)
 		free(rds->vb);
 
 	memset(rds, 0, sizeof(struct rd_sanlock));
@@ -1658,7 +1392,7 @@ int lm_lock_sanlock(struct lockspace *ls, struct resource *r, int ld_mode,
 	struct sanlk_options opt;
 	uint64_t lock_lv_offset;
 	uint32_t flags = 0;
-	struct val_blk vb = { 0 };
+	struct val_blk vb;
 	int added = 0;
 	int rv;
 
@@ -2044,7 +1778,7 @@ static int release_rename(struct lockspace *ls, struct resource *r)
 	res1 = (struct sanlk_resource *)&rd1;
 	res2 = (struct sanlk_resource *)&rd2;
 
-	strcpy_name_len(res2->name, (char *)"invalid_removed", SANLK_NAME_LEN);
+	strcpy(res2->name, "invalid_removed");
 
 	res_args[0] = res1;
 	res_args[1] = res2;
@@ -2126,20 +1860,12 @@ int lm_unlock_sanlock(struct lockspace *ls, struct resource *r,
 	if (rv < 0)
 		log_error("S %s R %s unlock_san release error %d", ls->name, r->name, rv);
 
-	/*
+	if (rv == -EIO)
-	 * sanlock may return an error here if it fails to release the lease on
+		rv = -ELOCKIO;
-	 * disk because of an io timeout.  But, sanlock will continue trying to
+	else if (rv < 0)
-	 * release the lease after this call returns.  We shouldn't return an
+		rv = -ELMERR;
-	 * error here which would result in lvmlockd-core keeping the lock
-	 * around.  By releasing the lock in lvmlockd-core at this point,
-	 * lvmlockd may send another acquire request to lvmlockd.  If sanlock
-	 * has not been able to release the previous instance of the lock yet,
-	 * then it will return an error for the new request.  But, acquiring a
-	 * new lock is able o fail gracefully, until sanlock is finally able to
-	 * release the old lock.
-	 */
 
-	return 0;
+	return rv;
 }
 
 int lm_hosts_sanlock(struct lockspace *ls, int notify)
@@ -2237,8 +1963,8 @@ int lm_get_lockspaces_sanlock(struct list_head *ls_rejoin)
 
 		ls->lm_type = LD_LM_SANLOCK;
 		ls->host_id = ss->host_id;
-		memcpy(ls->name, ss->name, SANLK_NAME_LEN);
+		strncpy(ls->name, ss->name, MAX_NAME);
-		memcpy(ls->vg_name, ss->name + strlen(LVM_LS_PREFIX), SANLK_NAME_LEN - strlen(LVM_LS_PREFIX));
+		strncpy(ls->vg_name, ss->name + strlen(LVM_LS_PREFIX), MAX_NAME);
 		list_add_tail(&ls->list, ls_rejoin);
 
 		ss++;

daemons/lvmpolld/Makefile.in

@@ -19,25 +19,25 @@ SOURCES = lvmpolld-core.c lvmpolld-data-utils.c lvmpolld-cmd-utils.c
 
 TARGETS = lvmpolld
 
-CFLOW_SOURCES = $(addprefix $(srcdir)/, $(SOURCES))
-CFLOW_TARGET := $(TARGETS)
-
 .PHONY: install_lvmpolld
 
+CFLOW_LIST = $(SOURCES)
+CFLOW_LIST_TARGET = $(LIB_NAME).cflow
+CFLOW_TARGET = lvmpolld
+
 include $(top_builddir)/make.tmpl
 
 CFLAGS += $(EXTRA_EXEC_CFLAGS)
 INCLUDES += -I$(top_srcdir)/libdaemon/server
-LDFLAGS += $(EXTRA_EXEC_LDFLAGS) $(ELDFLAGS)
+LDFLAGS += -L$(top_builddir)/libdaemon/server $(EXTRA_EXEC_LDFLAGS) $(ELDFLAGS)
-LIBS += $(DAEMON_LIBS) $(PTHREAD_LIBS)
+LIBS += $(DAEMON_LIBS) -ldaemonserver -ldevmapper $(PTHREAD_LIBS)
 
-lvmpolld: $(OBJECTS) $(top_builddir)/libdaemon/server/libdaemonserver.a $(INTERNAL_LIBS)
+lvmpolld: $(OBJECTS) $(top_builddir)/libdaemon/client/libdaemonclient.a \
-	@echo "    [CC] $@"
+		    $(top_builddir)/libdaemon/server/libdaemonserver.a
-	$(Q) $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $+ $(LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJECTS) $(LIBS)
 
 install_lvmpolld: lvmpolld
-	@echo "    [INSTALL] $<"
+	$(INSTALL_PROGRAM) -D $< $(sbindir)/$(<F)
-	$(Q) $(INSTALL_PROGRAM) -D $< $(sbindir)/$(<F)
 
 install_lvm2: install_lvmpolld
 

daemons/lvmpolld/lvmpolld-cmd-utils.c

@@ -36,7 +36,7 @@ static int add_to_cmd_arr(const char ***cmdargv, const char *str, unsigned *ind)
 	const char **newargv;
 
 	if (*ind && !(*ind % MIN_ARGV_SIZE)) {
-		newargv = realloc(*cmdargv, (*ind / MIN_ARGV_SIZE + 1) * MIN_ARGV_SIZE * sizeof(char *));
+		newargv = dm_realloc(*cmdargv, (*ind / MIN_ARGV_SIZE + 1) * MIN_ARGV_SIZE * sizeof(char *));
 		if (!newargv)
 			return 0;
 		*cmdargv = newargv;
@@ -50,7 +50,7 @@ static int add_to_cmd_arr(const char ***cmdargv, const char *str, unsigned *ind)
 const char **cmdargv_ctr(const struct lvmpolld_lv *pdlv, const char *lvm_binary, unsigned abort_polling, unsigned handle_missing_pvs)
 {
 	unsigned i = 0;
-	const char **cmd_argv = malloc(MIN_ARGV_SIZE * sizeof(char *));
+	const char **cmd_argv = dm_malloc(MIN_ARGV_SIZE * sizeof(char *));
 
 	if (!cmd_argv)
 		return NULL;
@@ -92,19 +92,13 @@ const char **cmdargv_ctr(const struct lvmpolld_lv *pdlv, const char *lvm_binary,
 	if (!add_to_cmd_arr(&cmd_argv, "-An", &i))
 		goto err;
 
-	if (pdlv->devicesfile) {
-		if (!add_to_cmd_arr(&cmd_argv, "--devicesfile", &i) ||
-		    !add_to_cmd_arr(&cmd_argv, pdlv->devicesfile, &i))
-			goto err;
-	}
-
 	/* terminating NULL */
 	if (!add_to_cmd_arr(&cmd_argv, NULL, &i))
 		goto err;
 
 	return cmd_argv;
 err:
-	free(cmd_argv);
+	dm_free(cmd_argv);
 	return NULL;
 }
 
@@ -128,7 +122,7 @@ static int copy_env(const char ***cmd_envp, unsigned *i, const char *exclude)
 const char **cmdenvp_ctr(const struct lvmpolld_lv *pdlv)
 {
 	unsigned i = 0;
-	const char **cmd_envp = malloc(MIN_ARGV_SIZE * sizeof(char *));
+	const char **cmd_envp = dm_malloc(MIN_ARGV_SIZE * sizeof(char *));
 
 	if (!cmd_envp)
 		return NULL;
@@ -147,6 +141,6 @@ const char **cmdenvp_ctr(const struct lvmpolld_lv *pdlv)
 
 	return cmd_envp;
 err:
-	free(cmd_envp);
+	dm_free(cmd_envp);
 	return NULL;
 }

daemons/lvmpolld/lvmpolld-common.h

@@ -18,10 +18,12 @@
 #ifndef _LVM_LVMPOLLD_COMMON_H
 #define _LVM_LVMPOLLD_COMMON_H
 
-#include "tools/tool.h"
+#define _REENTRANT
+
+#include "tool.h"
 
 #include "lvmpolld-cmd-utils.h"
-#include "daemons/lvmpolld/lvmpolld-protocol.h"
+#include "lvmpolld-protocol.h"
 
 #include <assert.h>
 #include <errno.h>

daemons/lvmpolld/lvmpolld-core.c

@@ -149,7 +149,7 @@ static void _lvmpolld_global_unlock(struct lvmpolld_state *ls)
 static int _fini(struct daemon_state *s)
 {
 	int done;
-	const struct timespec t = { .tv_nsec = 10000000 }; /* .01 sec */
+	const struct timespec t = { .tv_nsec = 250000000 }; /* .25 sec */
 	struct lvmpolld_state *ls = s->private;
 
 	DEBUGLOG(s, "fini");
@@ -236,7 +236,9 @@ static int poll_for_output(struct lvmpolld_lv *pdlv, struct lvmpolld_thread_data
 	}
 
 	while (1) {
+		do {
 			r = poll(fds, 2, pdlv_get_timeout(pdlv) * 1000);
+		} while (r < 0 && errno == EINTR);
 
 		DEBUGLOG(pdlv->ls, "%s: %s %d", PD_LOG_PREFIX, "poll() returned", r);
 		if (r < 0) {
@@ -372,7 +374,7 @@ static void debug_print(struct lvmpolld_state *ls, const char * const* ptr)
 
 static void *fork_and_poll(void *args)
 {
-	int outfd, errfd, state = 0;
+	int outfd, errfd, state;
 	struct lvmpolld_thread_data *data;
 	pid_t r;
 
@@ -528,7 +530,7 @@ static response progress_info(client_handle h, struct lvmpolld_state *ls, reques
 
 	pdst_unlock(pdst);
 
-	free(id);
+	dm_free(id);
 
 	if (pdlv) {
 		if (st.error)
@@ -553,15 +555,14 @@ static struct lvmpolld_lv *construct_pdlv(request req, struct lvmpolld_state *ls
 				     const char *interval, const char *id,
 				     const char *vgname, const char *lvname,
 				     const char *sysdir, enum poll_type type,
-				     unsigned abort_polling, unsigned uinterval,
+				     unsigned abort_polling, unsigned uinterval)
-				     const char *devicesfile)
 {
 	const char **cmdargv, **cmdenvp;
 	struct lvmpolld_lv *pdlv;
 	unsigned handle_missing_pvs = daemon_request_int(req, LVMPD_PARM_HANDLE_MISSING_PVS, 0);
 
 	pdlv = pdlv_create(ls, id, vgname, lvname, sysdir, type,
-			   interval, uinterval, pdst, devicesfile);
+			   interval, uinterval, pdst);
 
 	if (!pdlv) {
 		ERROR(ls, "%s: %s", PD_LOG_PREFIX, "failed to create internal LV data structure.");
@@ -620,7 +621,6 @@ static response poll_init(client_handle h, struct lvmpolld_state *ls, request re
 	const char *lvname = daemon_request_str(req, LVMPD_PARM_LVNAME, NULL);
 	const char *vgname = daemon_request_str(req, LVMPD_PARM_VGNAME, NULL);
 	const char *sysdir = daemon_request_str(req, LVMPD_PARM_SYSDIR, NULL);
-	const char *devicesfile = daemon_request_str(req, LVMPD_PARM_DEVICESFILE, NULL);
 	unsigned abort_polling = daemon_request_int(req, LVMPD_PARM_ABORT, 0);
 
 	assert(type < POLL_TYPE_MAX);
@@ -673,24 +673,24 @@ static response poll_init(client_handle h, struct lvmpolld_state *ls, request re
 			      PD_LOG_PREFIX, "poll operation type mismatch on LV identified by",
 			      id,
 			      polling_op(pdlv_get_type(pdlv)), polling_op(type));
-			free(id);
+			dm_free(id);
 			return reply(LVMPD_RESP_EINVAL,
 				     REASON_DIFFERENT_OPERATION_IN_PROGRESS);
 		}
 		pdlv->init_rq_count++; /* safe. protected by store lock */
 	} else {
 		pdlv = construct_pdlv(req, ls, pdst, interval, id, vgname,
-				      lvname, sysdir, type, abort_polling, 2 * uinterval, devicesfile);
+				      lvname, sysdir, type, abort_polling, 2 * uinterval);
 		if (!pdlv) {
 			pdst_unlock(pdst);
-			free(id);
+			dm_free(id);
 			return reply(LVMPD_RESP_FAILED, REASON_ENOMEM);
 		}
 		if (!pdst_locked_insert(pdst, id, pdlv)) {
 			pdlv_destroy(pdlv);
 			pdst_unlock(pdst);
 			ERROR(ls, "%s: %s", PD_LOG_PREFIX, "couldn't store internal LV data structure");
-			free(id);
+			dm_free(id);
 			return reply(LVMPD_RESP_FAILED, REASON_ENOMEM);
 		}
 		if (!spawn_detached_thread(pdlv)) {
@@ -698,7 +698,7 @@ static response poll_init(client_handle h, struct lvmpolld_state *ls, request re
 			pdst_locked_remove(pdst, id);
 			pdlv_destroy(pdlv);
 			pdst_unlock(pdst);
-			free(id);
+			dm_free(id);
 			return reply(LVMPD_RESP_FAILED, REASON_ENOMEM);
 		}
 
@@ -709,7 +709,7 @@ static response poll_init(client_handle h, struct lvmpolld_state *ls, request re
 
 	pdst_unlock(pdst);
 
-	free(id);
+	dm_free(id);
 
 	return daemon_reply_simple(LVMPD_RESP_OK, NULL);
 }
@@ -806,7 +806,7 @@ static int printout_raw_response(const char *prefix, const char *msg)
 	char *buf;
 	char *pos;
 
-	buf = strdup(msg);
+	buf = dm_strdup(msg);
 	pos = buf;
 
 	if (!buf)
@@ -819,7 +819,7 @@ static int printout_raw_response(const char *prefix, const char *msg)
 		_log_line(pos, &b);
 		pos = next ? next + 1 : 0;
 	}
-	free(buf);
+	dm_free(buf);
 
 	return 1;
 }