clarify

last Friday.

.gitignore

@@ -1,27 +0,0 @@
-*.5
-*.8
-*.a
-*.d
-*.o
-*.pc
-*.pot
-*.so
-*.so.*
-*.swp
-*~
-
-.export.sym
-.exported_symbols_generated
-.gdb_history
-
-Makefile
-make.tmpl
-
-configure.h
-version.h
-
-/autom4te.cache/
-/config.log
-/config.status
-/cscope.out
-/tmp/

Makefile.in

@@ -1,6 +1,6 @@
 #
 # Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
-# Copyright (C) 2004-2010 Red Hat, Inc. All rights reserved.
+# Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
 #
 # This file is part of LVM2.
 #
@@ -14,57 +14,41 @@
 
 srcdir = @srcdir@
 top_srcdir = @top_srcdir@
-top_builddir = @top_builddir@
+VPATH = @srcdir@
 
-SUBDIRS = conf daemons include lib libdaemon libdm man scripts tools
+SUBDIRS = doc include man scripts
-
-ifeq ("@UDEV_RULES@", "yes")
-  SUBDIRS += udev
-endif
 
 ifeq ("@INTL@", "yes")
   SUBDIRS += po
 endif
 
-ifeq ("@APPLIB@", "yes")
+SUBDIRS += lib tools daemons libdm
-  SUBDIRS += liblvm
-endif
 
-ifeq ("@PYTHON_BINDINGS@", "yes")
-  SUBDIRS += python
-endif
-
-ifeq ($(MAKECMDGOALS),clean)
-  SUBDIRS += test
-endif
-# FIXME Should use intermediate Makefiles here!
 ifeq ($(MAKECMDGOALS),distclean)
-  SUBDIRS = conf include man test scripts \
+  SUBDIRS += daemons/clvmd \
-    libdaemon lib tools daemons libdm \
+	     daemons/dmeventd/plugins \
-    udev po liblvm python \
+	     lib/format1 \
-    unit-tests/datastruct unit-tests/mm unit-tests/regex
+	     lib/format_pool \
-tools.distclean: test.distclean
+	     lib/locking \
+	     lib/mirror \
+	     lib/snapshot \
+	     test \
+	     po
+  DISTCLEAN_TARGETS += lib/misc/configure.h
+  DISTCLEAN_DIRS += lcov_reports*
 endif
-DISTCLEAN_DIRS += lcov_reports*
-DISTCLEAN_TARGETS += config.cache config.log config.status make.tmpl
 
 include make.tmpl
 
 libdm: include
-libdaemon: include
+lib: libdm
-lib: libdm libdaemon
+daemons: lib
-liblvm: lib
+tools: lib device-mapper
-daemons: lib libdaemon tools
-tools: lib libdaemon device-mapper
 po: tools daemons
-scripts: liblvm libdm
 
-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
 
 ifeq ("@INTL@", "yes")
@@ -75,112 +59,52 @@ po.pofile: tools.pofile daemons.pofile
 pofile: po.pofile
 endif
 
-ifeq ("@PYTHON_BINDINGS@", "yes")
+ifneq ("@CFLOW_CMD@", "")
-python: liblvm
+tools.cflow: lib.cflow
-endif
+cflow: tools.cflow
-
-ifneq ("$(CFLOW_CMD)", "")
-tools.cflow: libdm.cflow lib.cflow
-daemons.cflow: tools.cflow
-cflow: include.cflow
 endif
 
 ifneq ("@CSCOPE_CMD@", "")
-cscope.out:
+cscope.out: tools
-	@CSCOPE_CMD@ -b -R -s$(top_srcdir)
+	@CSCOPE_CMD@ -b -R
 all: cscope.out
 endif
-DISTCLEAN_TARGETS += cscope.out
 
-check check_system check_cluster check_local check_lvmetad unit: all
+check: all
-	$(MAKE) -C test $(@)
+	$(MAKE) -C test all
 
-install_system_dirs:
+ifneq ("@LCOV@", "")
-	$(INSTALL_DIR) $(DESTDIR)$(DEFAULT_SYS_DIR)
+.PHONY: lcov-reset lcov lcov-dated
-	$(INSTALL_ROOT_DIR) $(DESTDIR)$(DEFAULT_ARCHIVE_DIR)
-	$(INSTALL_ROOT_DIR) $(DESTDIR)$(DEFAULT_BACKUP_DIR)
-	$(INSTALL_ROOT_DIR) $(DESTDIR)$(DEFAULT_CACHE_DIR)
-	$(INSTALL_ROOT_DIR) $(DESTDIR)$(DEFAULT_LOCK_DIR)
-	$(INSTALL_ROOT_DIR) $(DESTDIR)$(DEFAULT_RUN_DIR)
-	$(INSTALL_ROOT_DATA) /dev/null $(DESTDIR)$(DEFAULT_CACHE_DIR)/.cache
-
-install_initscripts: 
-	$(MAKE) -C scripts install_initscripts
-
-install_systemd_generators:
-	$(MAKE) -C scripts install_systemd_generators
-	$(MAKE) -C man install_systemd_generators
-
-install_systemd_units:
-	$(MAKE) -C scripts install_systemd_units
-
-ifeq ("@PYTHON_BINDINGS@", "yes")
-install_python_bindings:
-	$(MAKE) -C liblvm/python install_python_bindings
-endif
-
-install_tmpfiles_configuration:
-	$(MAKE) -C scripts install_tmpfiles_configuration
-
-LCOV_TRACES = libdm.info lib.info tools.info \
-	daemons/dmeventd.info daemons/clvmd.info
-CLEAN_TARGETS += $(LCOV_TRACES)
-
-ifneq ("$(LCOV)", "")
-.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)
+LCOV_REPORTS_DIR=$(top_srcdir)/lcov_reports-$(shell date +%Y%m%d%k%M%S)
-lcov-dated: lcov
 else
-LCOV_REPORTS_DIR := lcov_reports
+LCOV_REPORTS_DIR=$(top_srcdir)/lcov_reports
 endif
 
 lcov-reset:
-	$(LCOV) --zerocounters $(addprefix -d , $(basename $(LCOV_TRACES)))
+	$(LCOV) -d $(top_srcdir)/dmeventd --zerocounters
+	$(LCOV) -d $(top_srcdir)/libdm --zerocounters
+	$(LCOV) -d $(top_srcdir)/lib --zerocounters
+	$(LCOV) -d $(top_srcdir)/tools --zerocounters
 
-# maybe use subdirs processing to create tracefiles...
+lcov: all
-$(LCOV_TRACES):
+	$(RM) -rf $(LCOV_REPORTS_DIR)
-	$(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_TRACES)
-	$(RM) -r $(LCOV_REPORTS_DIR)
 	$(MKDIR_P) $(LCOV_REPORTS_DIR)
-	for i in $(LCOV_TRACES); do \
+	$(LCOV) -b ${top_srcdir}/libdm -d $(top_srcdir)/libdm -c -o $(LCOV_REPORTS_DIR)/libdm.info
-		test -s $$i && lc="$$lc $$i"; \
+	$(LCOV) -b $(top_srcdir)/lib -d $(top_srcdir)/lib -c -o $(LCOV_REPORTS_DIR)/lib.info
-	done; \
+	$(LCOV) -b $(top_srcdir)/tools -d $(top_srcdir)/tools -c -o $(LCOV_REPORTS_DIR)/tools.info
-	test -z "$$lc" || $(GENHTML) -p @abs_top_builddir@ \
+	DMEVENTD_INFO="$(LCOV_REPORTS_DIR)/dmeventd.info" ;\
-		-o $(LCOV_REPORTS_DIR) $$lc
+	DMEVENTD_INFO_A="-a $$DMEVENTDINFO" ;\
+	$(LCOV) -b $(top_srcdir)/dmeventd -d $(top_srcdir)/dmeventd -c -o $$DMEVENTD_INFO || DMEVENTD_INFO_A="" ;\
+	$(LCOV) $$DMEVENTD_INFO_A -a $(LCOV_REPORTS_DIR)/lib.info \
+		-a $(LCOV_REPORTS_DIR)/libdm.info \
+		-a $(LCOV_REPORTS_DIR)/tools.info \
+		-o $(LCOV_REPORTS_DIR)/lvm.info
+ifneq ("@GENHTML@", "")
+	$(GENHTML) -o $(LCOV_REPORTS_DIR) -p $(top_srcdir) $(LCOV_REPORTS_DIR)/lvm.info
 endif
 
-endif
+lcov-dated: lcov
-
+
-ifeq ("$(TESTING)", "yes")
-# testing and report generation
-RUBY=ruby1.9 -Ireport-generators/lib -Ireport-generators/test
-
-.PHONY: unit-test ruby-test test-programs
-
-# FIXME: put dependencies on libdm and liblvm
-# FIXME: Should be handled by Makefiles in subdirs, not here at top level.
-test-programs:
-	cd unit-tests/regex && $(MAKE)
-	cd unit-tests/datastruct && $(MAKE)
-	cd unit-tests/mm && $(MAKE)
-
-unit-test: test-programs
-	$(RUBY) report-generators/unit_test.rb $(shell find . -name TESTS)
-	$(RUBY) report-generators/title_page.rb
-
-memcheck: test-programs
-	$(RUBY) report-generators/memcheck.rb $(shell find . -name TESTS)
-	$(RUBY) report-generators/title_page.rb
-
-ruby-test:
-	$(RUBY) report-generators/test/ts.rb
 endif

README

@@ -8,26 +8,20 @@ There is no warranty - see COPYING and COPYING.LIB.
 Tarballs are available from:
   ftp://sources.redhat.com/pub/lvm2/
 
-The source code is stored in git:
+To access the CVS tree use:
-  http://git.fedorahosted.org/git/lvm2.git
+  cvs -d :pserver:cvs@sources.redhat.com:/cvs/lvm2 login
-  git clone git://git.fedorahosted.org/git/lvm2.git
+  CVS password: cvs
+  cvs -d :pserver:cvs@sources.redhat.com:/cvs/lvm2 co LVM2
 
 Mailing list for general discussion related to LVM2:
   linux-lvm@redhat.com
   Subscribe from https://www.redhat.com/mailman/listinfo/linux-lvm
 
-Mailing lists for LVM2 development, patches and commits:
+Mailing list for LVM2 development, patches and commits:
   lvm-devel@redhat.com
   Subscribe from https://www.redhat.com/mailman/listinfo/linux-lvm
 
-  lvm2-commits@lists.fedorahosted.org (Read-only archive of commits)
-  Subscribe from https://fedorahosted.org/mailman/listinfo/lvm2-commits
-
 Mailing list for device-mapper development, including kernel patches
 and multipath-tools:
   dm-devel@redhat.com
   Subscribe from https://www.redhat.com/mailman/listinfo/dm-devel
-
-The source code repository used until 7th June 2012 is accessible here:
-  http://sources.redhat.com/cgi-bin/cvsweb.cgi/LVM2/?cvsroot=lvm2.
-

VERSION

@@ -1 +1 @@
-2.02.112(2)-git (2014-09-01)
+2.02.43-cvs (2008-11-10)

VERSION_DM

@@ -1 +1 @@
-1.02.91-git (2014-09-01)
+1.02.29-cvs (2008-11-10)

WHATS_NEW_DM

@@ -1,614 +1,3 @@
-Version 1.02.91 - 
-====================================
-  Fix dm_is_dm_major to not issue error about missing /proc lines for dm module.
-
-Version 1.02.90 - 1st September 2014
-====================================
-  Restore proper buffer size for parsing mountinfo line (1.02.89)
-
-Version 1.02.89 - 26th August 2014
-==================================
-  Improve libdevmapper-event select() error handling.
-  Add extra check for matching transation_id after message submitting.
-  Add dm_report_field_string_list_unsorted for str. list report without sorting.
-  Support --deferred with dmsetup remove to defer removal of open devices.
-  Update dm-ioctl.h to include DM_DEFERRED_REMOVE flag.
-  Add support for selection to match string list subset, recognize { } operator.
-  Fix string list selection with '[value]' to not match list that's superset.
-  Fix string list selection to match whole words only, not prefixes.
-
-Version 1.02.88 - 5th August 2014
-=================================
-  Add dm_tree_set_optional_uuid_suffixes to handle upgrades.
-
-Version 1.02.87 - 23rd July 2014
-================================
-  Fix dm_report_field_string_list to handle delimiter with multiple chars.
-  Add dm_report_field_reserved_value for per-field reserved value definition.
-
-Version 1.02.86 - 23rd June 2014
-================================
-  Make "help" and "?" reporting fields implicit.
-  Recognize implicit "selected" field if using dm_report_init_with_selection.
-  Add support for implicit reporting fields which are predefined in libdm.
-  Add DM_REPORT_FIELD_TYPE_PERCENT: separate number and percent fields.
-  Add dm_percent_range_t,dm_percent_to_float,dm_make_percent to libdm for reuse.
-  Add dm_report_reserved_value to libdevmapper for reserved value definition.
-  Also display field types when listing all fields in selection help.
-  Recognize "help" keyword in selection string to show brief help for selection.
-  Always order items reported as string list field lexicographically.
-  Add dm_report_field_string_list to libdevmapper for direct string list report.
-  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 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.
-  Warn user about incorrect use of cookie with 'dmsetup remove --force'.
-  Also recognize 'help'/'?' as reserved sort key name to show help.
-  Add dm_units_to_factor for size unit parsing.
-  Increase bitset size for minors for thin dmeventd plugin.
-
-Version 1.02.85 - 10th April 2014
-=================================
-  Check for sprintf error when building internal device path.
-  Check for sprintf error when creating path for dm control node.
-  When buffer for dm_get_library_version() is too small, return error code.
-  Always reinitialize _name_mangling_mode in dm_lib_init().
-  Add tracking flag about implicitly added devices into dm_tree.
-  Stop timeout thread immediately when the last worker thread is finished.
-  Fix dmeventd logging with parallel wait event processing.
-  Reuse _node_send_messages() for validation of transaction_id in preload.
-  Transaction_id could be lower by one only when messages are prepared.
-  Do not call callback when preload fails.
-  Wrap is_selinux_enabled() to be called just once.
-  Use correctly signed 64b constant when working with raid volumes.
-  Exit dmeventd with pidfile cleanup instead of raising SIGKILL on DIE request.
-  Add new DM_EVENT_GET_PARAMETERS request to dmeventd protocol.
-  Do not use systemd's reload for dmeventd restart, use dmeventd -R instead.
-  Drop cryptsetup rules from 10-dm.rules - cryptsetup >= 1.1.3 sets them.
-
-Version 1.02.84 - 20th January 2014
-===================================
-  Revert activation of activated nodes if a node preload callback fails.
-  Avoid busy looping on CPU when dmeventd reads event DM_WAIT_RETRY.
-  Ensure global mutex is held when working with dmeventd thread.
-  Drop taking timeout mutex for un/registering dmeventd monitor.
-  Allow section names in config file data to be quoted strings.
-  Close fifos before exiting in dmeventd restart() error path.
-  Move printf format string directly into dm_asprintf args list.
-  Catch invalid use of string sort values when reporting numerical fields.
-
-Version 1.02.83 - 13th November 2013
-====================================
-  Consistently report on stderr when device is not found for dmsetup info.
-  Skip race errors when non-udev dmsetup build runs on udev-enabled system.
-  Skip error message when holders are not present in sysfs.
-  Use __linux__ instead of linux define to make libdevmapper.h C compliant.
-  Use mutex to avoid possible race while creating/destroying memory pools.
-  Require libpthread to build now.
-
-Version 1.02.82 - 4th October 2013
-==================================
-  Define symbolic names for subsystem udev flags in libdevmapper for easier use.
-  Make subsystem udev rules responsible for importing DM_SUBSYSTEM_UDEV_FLAG*.
-
-Version 1.02.81 - 23rd September 2013
-=====================================
-  Tidy dmeventd fifo initialisation.
-
-Version 1.02.80 - 20th September 2013
-=====================================
-  Detect invalid sector supplied to 'dmsetup message'.
-  Free any previously-set string if a dm_task_set_* function is called again.
-  Do not allow passing empty new name for dmsetup rename.
-  Display any output returned by 'dmsetup message'.
-  Add dm_task_get_message_response to libdevmapper.
-
-Version 1.02.79 - 13th August 2013
-==================================
-  Create dmeventd timeout threads as "detached" so exit status is freed.
-  Add DM_ABORT_ON_INTERNAL_ERRORS env var support to abort on internal errors.
-
-Version 1.02.78 - 24th July 2013
-================================
-  Process thin messages once to active thin pool target for dm_tree.
-  Optimize out setting the same value or read_ahead.
-  Add DM_ARRAY_SIZE public macro.
-  Move syslog code out of signal handle in dmeventd.
-  Add DM_TO_STRING public macro.
-  Always return success on dmeventd -V command call.
-  Fix parsing of 64bit snapshot status in dmeventd snapshot plugin.
-  Add dm_get_status_snapshot() for parsing snapshot status.
-  Detecte mounted fs also via reading /proc/self/mountinfo.
-  Add dm_mountinfo_read() for parsing /proc/self/mountinfo.
-  Report error for nonexisting devices in dmeventd communication.
-  Prevent double free error after dmeventd call of _fill_device_data().
-  Update dmevent structure message_data to simplify/fix error path handling.
-  Validate passed params to dm_get_status_raid/thin/thin_pool(). 
-  Fix 'dmsetup splitname -o' to not fail if used without '-c' switch (1.02.68).
-  Add dm_config_write_{node_out/one_node_out} for enhanced config output.
-  Add dm_config_value_is_bool to check for boolean value in supported formats.
-  Fix config node lookup inside empty sections to not return the section itself.
-  Append discards and read-only fields to exported struct dm_status_thin_pool.
-  Fix segfault for truncated string token in config file after the first '"'.
-  Close open dmeventd FIFO file descriptors on exec (FD_CLOEXEC).
-  Fix resource leak in error path of dmeventd's umount of thin volume.
-  Automatically deactivate failed preloaded dm tree node.
-  Add DM_DISABLE_UDEV environment variable to manage dev nodes by libdm only.
-  Fix dm_task_set_cookie to properly process udev flags if udev_sync disabled.
-
-Version 1.02.77 - 15th October 2012
-===================================
-  Support unmount of thin volumes from pool above thin pool threshold.
-  Update man page to reflect that dm UUIDs are being mangled as well.
-  Apply 'dmsetup mangle' for dm UUIDs besides dm names.
-  Add 'mangled_uuid' and 'unmangled_uuid' fields to dmsetup info -c -o.
-  Mangle device UUID on dm_task_set_uuid/newuuid call if necessary.
-  Add dm_task_get_uuid_mangled/unmangled to libdevmapper.
-  Always reset delay_resume_if_new flag when stacking thin pool over anything.
-  Don't create value for dm_config_node and require dm_config_create_value call.
-  Check for existing new_name for dmsetup rename.
-  Fix memory leak in dmsetup _get_split_name() error path.
-
-Version 1.02.76 - 7th August 2012
-=================================
-  Add dm_vasprintf to libdevmapper.
-  Allow --noflush with dmsetup status and wait (for thin target).
-  Add dm_config_write_one_node to libdevmapper.
-  Support thin pool message release/reserve_metadata_snap in libdevmapper.
-  Support thin pool discards and external origin features in libdevmapper.
-  Add configure --enable-udev-rule-exec-detection to detect exec path in rules.
-  Use sbindir in udev rules by default and remove executable path detection.
-  Remove hard-coded paths for dmeventd fifos and use default-dm-run-dir.
-  Add configure --with-lvmetad-pidfile to remove hard-coded value.
-  Add configure --with-default-pid-dir for common directory with pid files.
-  Add configure --with-default-dm-run-dir to set run directory for dm tools.
-  Detect kernel_send() errors in cmirrord.
-  Add __attribute__ instrumentation to libdevmapper.h.
-  Print clean_bits instead of sync_bits in pull_state in cmirrord.
-  Add tests for errors from closedir(), close() in cmirrord.
-  Add documentation references in systemd units.
-  Remove veritysetup.  Now maintained with cryptsetup.
-
-Version 1.02.75 - 8th June 2012
-===============================
-  Upstream source repo now fedorahosted.org git not sources.redhat.com CVS.
-  Remove unsupported udev_get_dev_path libudev call used for checking udev dir.
-  Set delay_resume_if_new on deptree snapshot origin.
-  Log value chosen in _find_config_bool like other variable types do.
-  Wait for dmeventd to exit after sending it DM_EVENT_CMD_DIE when restarting.
-  Append 'Used' to {Blk}DevNames/DevNos dmsetup report headers for clarity.
-  Add configure --with-veritysetup for independent veritysetup tool.
-  Properly support supplied dmevent path in dm_event_register_handler().
-  Remove dmeventd fifos on exit if they are not managed by systemd.
-  Use SD_ACTIVATION environment variable in systemd units to detect systemd.
-  Only start a new dmeventd instance on restart if one was already running.
-  Extend the time waited for input from dmeventd fifo to 5 secs. (1.02.73)
-
-Version 1.02.74 - 6th March 2012
-================================
-  Check for multiply-mangled names in auto mangling mode.
-  Fix dm_task_get_name_unmangled to not unmangle already unmangled name.
-  Check whether device names are properly mangled on ioctl return.
-  Deactivation of failed thin check on thin pool returns success.
-
-Version 1.02.73 - 3rd March 2012
-================================
-  Test _thread_registry list with holding mutex in dmeventd.
-  Add dm_tree_node_set_callback() for preload and deactivation hooks.
-  Drop unsupported TRIM message for thin pool.
-  Improve logging for fifo startup in dmeventd.
-  Better detection of missing dmeventd fifo connection (1.02.71).
-  Add a few pointer validations in dmsetup.
-  Support dm_task_get_driver_version() query without version string.
-  Log failure of pthread_join when cleaning unused threads in dmeventd.
-  Fix empty string warning logic in _find_config_str. (1.02.68)
-  Fix dm_task_set_name to properly resolve path to dm name (1.02.71).
-  Add dm_strncpy() function as a faster strncpy() replacement.
-
-Version 1.02.72 - 23rd February 2012
-====================================
-  Avoid memory reallocation for dm_asprintf.
-
-Version 1.02.71 - 20th February 2012
-====================================
-  Switch to using built-in blkid in 13-dm-disk.rules.
-  Add "watch" rule to 13-dm-disk.rules.
-  Detect failing fifo and skip 20s retry communication period.
-  Add DM_DEFAULT_NAME_MANGLING_MODE environment variable as an override.
-  Add dm_lib_init to automatically initialise device-mapper library on load.
-  Replace any '\' char with '\\' in dm table specification on input.
-  Add mangle command to dmsetup to provide renaming to correct mangled form.
-  Add 'mangled_name' and 'unmangled_name' fields to dmsetup info -c -o.
-  Add --manglename option to dmsetup to select the name mangling mode.
-  Add dm_task_get_name_mangled/unmangled to libdevmapper.
-  Mangle device name on dm_task_set_name/newname call if necessary.
-  Add dm_set/get_name_mangling_mode to set/get name mangling in libdevmapper.
-  Add configure --with-default-name-mangling for udev-friendly dev name charset.
-  Test for parsed words in _umount() dmeventd snapshot plugin.
-  Fix memory leak in fail path of parse_loop_device_name() in dmsetup.
-  Check for missing reply_uuid in dm_event_get_registered_device().
-  Check for allocation failure in dmeventd restart().
-  Add few missing allocation failures tests in dmsetup.
-  Fix potential risk of writing in front of buffer in _sysfs_get_dm_name().
-
-Version 1.02.70 - 12th February 2012
-====================================
-  Fix dm_event_get_version() check.
-  Add pointer test for dependency check in _add_dev().
-  Validate name and uuid params of dm_tree_add_new_dev_with_udev_flags().
-  Do not crash for dm_report_init() sort_key == NULL and behave like "".
-  Return error for failing allocation in dm_asprintf().
-  Add missing test for failing allocation in dm_realloc() code.
-  Add test for memory allocation failures in regex matcher code.
-  Simplify dm_task_set_geometry() and use dm_asprintf().
-  Set all parameters to 0 for dm_get_next_target() for NULL return.
-  Fix fd resource leak in error path for _udev_notify_sem_create().
-  Leave space for '\0' for readline() call in _sysfs_get_kernel_name().
-
-Version 1.02.69 - 1st February 2012
-===================================
-  Clean up dmeventd systemd unit ordering and requirements.
-
-Version 1.02.68 - 26th January 2012
-===================================
-  Reset all members of info struct in dm_tree_add_new_dev_with_udev_flags.
-  Add dmsetup wipe_table to replace table with one that uses error target.
-  Add 'blkdevname' and 'blkdevs_used' fields to dmsetup info -c -o.
-  Add 'blkdevname' option to dmsetup ls --tree to see block device names.
-  Add -o devno/blkdevname/devname to dmsetup deps and ls.
-  Add dm_device_get_name to get map name or block device name for given devno.
-  Remove empty devices when clearing left-over inactive tables in deptree.
-  Add dm_uuid_prefix/dm_set_uuid_prefix to override hard-coded LVM- prefix.
-  Improve dmsetup man page description of readahead parameter.
-  Use sysfs to set/get readahead if possible.
-  Fix lvm2-monitor init script to use normalized output when using vgs.
-  Add test for max length (DM_MAX_TYPE_NAME) of target type name.
-  Include a copy of kernel DM documentation in doc/kernel.
-  Improve man page style for dmsetup and mention more targets.
-  Fix _get_proc_number to be tolerant of malformed /proc/misc entries.
-  Fix missing thread list manipulation protection in dmeventd.
-  Add ExecReload to dm-event.service for systemd to reload dmeventd properly.
-  Add dm_config_tree_find_str_allow_empty and dm_config_find_str_allow_empty.
-  Fix compile-time pool memory locking with DEBUG_MEM.
-  Fix valgrind error reports in free of pool chunks with DEBUG_MEM.
-  Align size of structure chunk for fast pool allocator to 8 bytes.
-  Simplify some pointer operations in dm_free_aux() debug code.
-  Remove unused dbg_malloc.h file from source tree.
-  Cleanup backtraces for _create_and_load_v4().
-  Fix alignment warning in bitcount calculation for raid segment.
-  Allocate dm_tree structure from dm_tree pool.
-  Update debug logging for _resume_node.
-  Add functions to support thin provisioning target.
-  Improve libdm-config error path reporting.
-  Update dmsetup resume man with --addnodeonresume/create options.
-  Add dependency for dm man pages to man subdirectory make all target.
-  Add dm_tree_retry_remove to use retry logic for device removal in a dm_tree.
-  Add dm_device_has_mounted_fs fn to check mounted filesystem on a device.
-  Add dm_device_has_holders fn to to check use of the device by another device.
-  Add dm_sysfs_dir to libdevmapper to retrieve sysfs location set.
-  Add dm_set_sysfs_dir to libdevmapper to set sysfs location.
-  Add --retry option for dmsetup remove to retry removal if not successful.
-  Add dm_task_retry_remove fn to use retry logic for device removal.
-  Remove unused passed parameters for _mirror_emit_segment_line().
-  Add dm_config and string character escaping functions to libdevmapper.
-  Mark unreleased memory pools as internal error.
-
-Version 1.02.67 - 19th August 2011
-==================================
-  Add dm_tree_node_add_null_area for temporarily-missing raid devs tracked.
-
-Version 1.02.66 - 12th August 2011
-==================================
-  Release geometry buffer in dm_task_destroy.
-  Update udev rules to skip DM flags decoding for removed devices.
-  Add compile-time pool memory locking options (to debug shared VG structs).
-  Remove device name prefix from dmsetup line output if -j & -m or -u supplied.
-  Remove support for the original version 1 dm ioctls.
-  Add missing check for allocation failure _create_dir_recursive().
-  Add support for systemd file descriptor handover in dmeventd.
-  Fix memory leak in dmsetup _message() memory allocation error path.
-  Use new oom killer adjustment interface (oom_score_adj) when available.
-  Add systemd unit files for dmeventd.
-  Fix read-only identical table reload supression.
-
-Version 1.02.65 - 8th July 2011
-===============================
-  Remove dev name prefix from dmsetup line output if exactly one dev requested.
-  Report internal error if suspending a device using an already-suspended dev.
-  Report error if a table load requiring target parameters has none supplied.
-  Add dmsetup --checks and dm_task_enable_checks framework to validate ioctls.
-  Add age_in_minutes parameter to dmsetup udevcomplete_all.
-  Return immediately from dm_lib_exit() if called more than once.
-  Disable udev fallback by default and add --verifyudev option to dmsetup.
-  Report internal error if any table is loaded while any dev is known suspended.
-  Add dm_get_suspended_counter() for number of devs in suspended state by lib.
-  Fix "all" report field prefix matching to include label fields with pv_all.
-  Delay resuming new preloaded mirror devices with core logs in deptree code.
-  Accept new kernel version 3 uname formats in initialisation.
-
-Version 1.02.64 - 29th April 2011
-==================================
-  Require libudev >= 143 when compiling with udev support.
-  Use word alignment for dm_pool_strdup() and dm_pool_strndup().
-  Use dm_snprintf() to fix signedness warning in dm_set_dev_dir().
-  Use unsigned loop counter to fix signedness warning in _other_node_ops().
-  Fix const cast in dmsetup calls of dm_report_field_string().
-  Streamline /dev/mapper/control node code for common cases.
-  Use hard-coded dm control node device number for 2.6.36 kernels and above.
-  Improve stack debug reporting in dm_task_create().
-  Fallback to control node creation only if node doesn't exist yet.
-  Change dm_hash binary functions to take void *key instead of char *.
-  Fix uninitialised memory use with empty params in _reload_with_suppression_v4.
-  Lower severity of selabel_lookup and matchpathcon failure to log_debug.
-  Add test for failed allocation from dm_task_set_uuid() in dmeventd.
-  Add dm_event_get_version to dmeventd for use with -R.
-  Avoid dmeventd core dumps when handling request with unknown command ID.
-  Have dmeventd -R start up even when no existing copy is running.
-  Accept multiple mapped device names on many dmsetup command lines.
-  Fix dm_udev_wait calls in dmsetup to occur before readahead display not after.
-  Include an implicit dm_task_update_nodes() within dm_udev_wait().
-  Fix _create_and_load_v4 not to lose the --addnodeoncreate setting (1.02.62).
-  Add inactive table query support for kernel driver >= 4.11.6 (RHEL 5.7).
-  Log debug open_count in _node_has_closed_parents().
-  Add a const to dm_report_field_string() data parameter.
-
-Version 1.02.63 - 9th February 2011
-===================================
-  Reinstate DEBUG_MEM as it's part of the API. (1.02.62)
-
-Version 1.02.62 - 4th February 2011
-===================================
-  Add configure --with-device-nodes-on=create for previous behaviour.
-  Move creation of device nodes from 'create' to 'resume'.
-  Add --addnodeonresume and --addnodeoncreate options to dmsetup.
-  Add dm_task_set_add_node to libdevmapper to control dev node creation time.
-  Add dm_task_secure_data to libdevmapper to wipe ioctl buffers in kernel.
-  Log debug message when expected uevent is not generated.
-  Only compile memory debugging code when DEBUG_MEM is set.
-  Set DM_UDEV_DISABLE_OTHER_RULES_FLAG for suspended DM devices in udev rules.
-  Begin a new pool object for each row in _output_as_rows() correctly.
-
-Version 1.02.61 - 10th January 2011
-===================================
-  Add DM_COOKIE_AUTO_CREATE to libdevmapper.h.
-  Export DM_CONTROL_NODE_UMASK and use it while creating /dev/mapper/control.
-
-Version 1.02.60 - 20th December 2010
-====================================
-  Check for unlink failure in remove_lockfile() in dmeventd.
-  Use dm_free for dm_malloc-ed areas in _clog_ctr/_clog_dtr in cmirrord.
-  Use char* arithmetic in _process_all() & _targets() in dmsetup.
-  Change dm_regex_create() API to accept const char * const *patterns.
-  Add new dm_prepare_selinux_context fn to libdevmapper and use it throughout.
-  Detect existence of new SELinux selabel interface during configure.
-
-Version 1.02.59 - 6th December 2010
-===================================
-  Add backtraces to _process_mapper_dir and  _create_and_load_v4 error paths.
-  Remove superfluous checks for NULL before calling dm_free.
-
-Version 1.02.58 - 22nd November 2010
-====================================
-  Fix _output_field crash from field_id free with DEBUG_MEM. (1.02.57)
-
-Version 1.02.57 - 8th November 2010
-===================================
-  Fix regex optimiser not to ignore RHS of OR nodes in _find_leftmost_common.
-  Add dmeventd -R to restart dmeventd without losing monitoring state. (1.02.56)
-  Fix memory leak of field_id in _output_field function.
-  Allocate buffer for reporting functions dynamically to support long outputs.
-
-Version 1.02.56 - 25th October 2010
-===================================
-  Return const pointer from dm_basename() in libdevmapper.
-  Implement dmeventd -R to restart without state loss.
-  Add dm_zalloc and use it and dm_pool_zalloc throughout.
-  Add --setuuid to dmsetup rename.
-  Add dm_task_set_newuuid to set uuid of mapped device post-creation.
-
-Version 1.02.55 - 24th September 2010
-=====================================
-  Fix the way regions are marked complete to avoid slow --nosync cmirror I/O.
-  Add DM_REPORT_FIELD_TYPE_ID_LEN to libdevmapper.h.
-
-Version 1.02.54 - 18th August 2010
-==================================
-  Fix dm-mod autoloading logic to not assume control node is set correctly.
-  Add dmeventd/executable to lvm.conf to test alternative dmeventd.
-  Export dm_event_handler_set_dmeventd_path to override built-in dmeventd path.
-  Generate libdevmapper-event exported symbols.
-  Remove superfluous NULL pointer tests before dm_free from dmeventd.
-  Assume dm-mod autoloading support is in kernel 2.6.36 and higher, not 2.6.35.
-  Fix udev rules to support udev database content generated by older rules.
-  Reinstate detection of inappropriate uevent with DISK_RO set and suppress it.
-  Fix regex ttree off-by-one error.
-  Add --enable-valgrind-pool to configure.
-  Fix segfault in regex matcher with characters of ordinal value > 127.
-  Fix 'void*' arithmetic warnings in dbg_malloc.c and libdm-iface.c.
-  Wait for node creation before displaying debug info in dmsetup.
-  Fix return status 0 for "dmsetup info -c -o help".
-  Add check for kernel semaphore support and disable udev_sync if not available.
-
-Version 1.02.53 - 28th July 2010
-================================
-  Revert failed table load preparation after "create, load and resume".
-  Switch dmeventd to use dm_create_lockfile and drop duplicate code.
-  Add dm_create_lockfile to libdm to handle pidfiles for all daemons.
-  Replace lookup with next in struct dfa_state & calculate states on demand.
-  Improve the regex matcher, reducing the number of charset nodes used.
-  Add dm_regex_fingerprint to facilitate regex testing.
-  Skip ffs(0) in _test_word in bitset functions.
-  Use "nowatch" udev rule for inappropriate devices.
-
-Version 1.02.52 - 6th July 2010
-===============================
-  Fix dmlosetup snprintf %llu compiler warning.
-  Add parentheses to some libdevmapper.h macro arguments.
-  Add printf format attributes to dm_{sn,as}printf and fix a caller.
-  Move dmeventd man page from install_lvm2 to install_device-mapper. (1.02.50)
-
-Version 1.02.51 - 30th June 2010
-================================
-  Generate libdevmapper exported symbols from header file.
-
-Version 1.02.50 - 23rd June 2010
-================================
-  Fix INTERNAL_ERROR typo in ioctl iface unknown task message.
-  Fix udev rules to handle spurious events properly.
-  Use C99 [] not [0] in dm_ulog_request struct to avoid abort when fortified.
-  Allow use of devmapper header file in C++ mode (extern "C" and __typeof__).
-  Add dmeventd man page.
-
-Version 1.02.49 - 4th June 2010
-===============================
-  Support autoloading of dm-mod module for kernels from 2.6.35.
-  Document 'clear' in dmsetup man page.
-  Fix semctl parameter (union) to avoid misaligned parameter on some arches.
-  Add dm_tree_node_set_presuspend_node() to presuspend child when deactivating.
-  Initial support for replicator target.
-
-Version 1.02.48 - 17th May 2010
-================================
-  Use -d to control level of messages sent to syslog by dmeventd.
-  Change -d to -f to run dmeventd in foreground.
-  Do not print encryption key in message debug output (cryptsetup luksResume).
-  Fix dmeventd static build library dependencies.
-  Fix udev flags on remove in create_and_load error path.
-
-Version 1.02.47 - 30th April 2010
-=================================
-  Add support for new IMPORT{db} udev rule.
-  Add DM_UDEV_PRIMARY_SOURCE_FLAG udev flag to recognize proper DM events.
-  Also include udev libs in libdevmapper.pc when udev_sync is enabled.
-  Cache bitset locations to speed up _calc_states.
-  Add a regex optimisation pass for shared prefixes and suffixes.
-  Add dm_bit_and and dm_bitset_equal to libdevmapper.
-  Simplify dm_bitset_create.
-  Speed up dm_bit_get_next with ffs().
-
-Version 1.02.46 - 14th April 2010
-=================================
-  Change dm_tree_deactivate_children to fail if device is open.
-  Wipe memory buffers for dm-ioctl parameters before releasing.
-  Strictly require libudev if udev_sync is used.
-  Add support for ioctl's DM_UEVENT_GENERATED_FLAG.
-
-Version 1.02.45 - 9th March 2010
-================================
-  Add --showkeys parameter description to dmsetup man page.
-  Add --help option as synonym for help command.
-
-Version 1.02.44 - 15th February 2010
-====================================
-  Add DM_UDEV_DISABLE_LIBRARY_FALLBACK udev flag to rely on udev only.
-  Export dm_udev_create_cookie function to create new cookies on demand.
-  Add --udevcookie, udevcreatecookie and udevreleasecookie to dmsetup.
-  Set udev state automatically instead of using DM_UDEV_DISABLE_CHECKING.
-
-Version 1.02.43 - 21st January 2010
-===================================
-  Remove bitset, hash and pool headers superceded by libdevmapper.h.
-  Fix off-by-one error causing bad cluster mirror table construction.
-
-Version 1.02.42 - 14th January 2010
-===================================
-  Add support for the "snapshot-merge" kernel target (2.6.33-rc1).
-  Introduce a third activation_priority level in dm_tree_activate_children.
-
-Version 1.02.41 - 12th January 2010
-===================================
-  If DM_UDEV_DISABLE_CHECKING is set in environment, disable udev warnings.
-  Add dm_tree_add_dev_with_udev_flags to provide wider support for udev flags.
-  Add --noudevrules option for dmsetup to disable /dev node management by udev.
-  Fix 'dmsetup info -c -o all' to show all fields.
-  Return errors if dm_tree_*_children functions fail.
-  Fix coredump and memory leak for 'dmsetup help -c'.
-  Disable udev rules for change events with DISK_RO set.
-
-Version 1.02.40 - 19th November 2009
-====================================
-  Fix install_device-mapper Makefile target to not build dmeventd plugins.
-  Support udev flags even when udev_sync is disabled or not compiled in.
-  Remove 'last_rule' from udev rules: honour DM_UDEV_DISABLE_OTHER_RULES_FLAG.
-  Add dmsetup --inactive support.
-  Add dm_task_query_inactive_table to libdevmapper for kernel driver >= 4.16.
-  Fix hash lookup segfault when keys compared are different lengths.
-
-Version 1.02.39 - 26th October 2009
-===================================
-  Remove strict default permissions for DM devices from 95-dm-notify.rules.
-  Add dmsetup udevflags command to decode udev flags in given cookie value.
-  Support udev flags in libdevmapper incl. dm_tree_add_new_dev_with_udev_flags.
-  Make libdm ABI consistent when built with/without selinux support.
-
-Version 1.02.38 - 25th September 2009
-=====================================
-  Export DM_DEV_DIR_UMASK, the default umask for /dev directories created.
-  Handle any path supplied to dm_task_set_name by looking up in /dev/mapper.
-  Add several examples to 12-dm-permissions.rules.
-  Add splitname and --yes to dmsetup man page.
-  Fix _mirror_emit_segment_line return code.
-  Fix dmeventd _temporary_log_fn parameters. (2.02.50)
-
-Version 1.02.37 - 15th September 2009
-=====================================
-  Add dmsetup manpage entries for udevcomplete_all and udevcookies.
-  Check udev is running when processing cookies and retain state internally.
-  Add y|--yes option to dmsetup for default 'yes' answer to prompts.
-  Fix tools Makefile to process dmsetup sources separately.
-  Restore umask when device node creation fails.
-  Check kernel vsn to use 'block_on_error' or 'handle_errors' in mirror table.
-  Add dm-log-userspace.h to tree for cmirrord builds.
-
-Version 1.02.36 - 6th August 2009
-=================================
-  Add udevcookies, udevcomplete, udevcomplete_all and --noudevwait to dmsetup.
-  Add libdevmapper functions to support synchronisation with udev.
-
-Version 1.02.35 - 28th July 2009
-================================
-  Add LOG_LINE_WITH_ERRNO macro.
-  Use log_error macro consistently throughout in place of log_err.
-
-Version 1.02.34 - 15th July 2009
-================================
-  Use _exit() not exit() after forking to avoid flushing libc buffers twice.
-  Rename plog macro to LOG_LINE & add LOG_MESG variant for dm_dump_memory_debug.
-  Change plog to use dm_log_with_errno unless deprecated dm_log_init was used.
-  Add dm_log_with_errno and dm_log_with_errno_init, deprecating the old fns.
-  Fix whitespace in linear target line to fix identical table line detection.
-  Add device number to more log messages during activation.
-
-Version 1.02.33 - 30th June 2009
-================================
-  Don't fallback to default major number: use dm_task_set_major_minor. (1.02.31)
-  Do not fork daemon when dmeventd cannot be found.
-  Add crypt target handling to libdevmapper tree nodes.
-  Add splitname command to dmsetup.
-  Add subsystem, vg_name, lv_name, lv_layer fields to dmsetup reports.
-  Make mempool optional in dm_split_lvm_name().
-
-Version 1.02.32 - 21st May 2009
-===============================
-  Only generate libdevmapper.a when configured to link statically.
-  Export dm_tree_node_size_changed() from libdevmapper.
-  Propagate the table size_changed property up the dm device tree.
-  Detect failure to free memory pools when releasing the library.
-  Fix segfault when getopt processes dmsetup -U, -G and -M options.
-
-Version 1.02.31 - 3rd March 2009
-================================
-  If kernel supports only one dm major number, use in place of any supplied.
-
-Version 1.02.30 - 26th January 2009
-====================================
-  Add "all" field to reports expanding to all fields of report type.
-  Enforce device name length and character limitations in libdm.
-  Replace _dm_snprintf with EMIT_PARAMS macro for creating target lines.
-
 Version 1.02.29 - 10th November 2008
 ====================================
   Merge device-mapper into the LVM2 tree.

acinclude.m4

@@ -1,59 +0,0 @@
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-    AC_REQUIRE([AC_PROG_CC])
-    ac_save_LDFLAGS=$LDFLAGS
-    LDFLAGS=$1
-	AC_CACHE_CHECK([whether $CC accepts $1 ld flags], [ac_cv_flag_$2],
-	[AC_LINK_IFELSE([AC_LANG_PROGRAM()],
-			[AS_VAR_SET([ac_cv_flag_$2], [yes])],
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-    LDFLAGS=$ac_save_LDFLAGS
-    $2=AS_VAR_GET([ac_cv_flag_$2])
-    if test "$2" = yes; then
-        ifelse([$3], [], [:], [$3])
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aclocal.m4

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-# WITHOUT ANY WARRANTY; without even the implied warranty of
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-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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-                     [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
-		      test "x$?" != "x0" && pkg_failed=yes ],
-		     [pkg_failed=yes])
- else
-    pkg_failed=untried
-fi[]dnl
-])# _PKG_CONFIG
-
-# _PKG_SHORT_ERRORS_SUPPORTED
-# -----------------------------
-AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
-[AC_REQUIRE([PKG_PROG_PKG_CONFIG])
-if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
-        _pkg_short_errors_supported=yes
-else
-        _pkg_short_errors_supported=no
-fi[]dnl
-])# _PKG_SHORT_ERRORS_SUPPORTED
-
-
-# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
-# [ACTION-IF-NOT-FOUND])
-#
-#
-# Note that if there is a possibility the first call to
-# PKG_CHECK_MODULES might not happen, you should be sure to include an
-# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
-#
-#
-# --------------------------------------------------------------
-AC_DEFUN([PKG_CHECK_MODULES],
-[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
-AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
-AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
-
-pkg_failed=no
-AC_MSG_CHECKING([for $1])
-
-_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
-_PKG_CONFIG([$1][_LIBS], [libs], [$2])
-
-m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
-and $1[]_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.])
-
-if test $pkg_failed = yes; then
-   	AC_MSG_RESULT([no])
-        _PKG_SHORT_ERRORS_SUPPORTED
-        if test $_pkg_short_errors_supported = yes; then
-	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
-        else 
-	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
-        fi
-	# Put the nasty error message in config.log where it belongs
-	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
-
-	m4_default([$4], [AC_MSG_ERROR(
-[Package requirements ($2) were not met:
-
-$$1_PKG_ERRORS
-
-Consider adjusting the PKG_CONFIG_PATH environment variable if you
-installed software in a non-standard prefix.
-
-_PKG_TEXT])[]dnl
-        ])
-elif test $pkg_failed = untried; then
-     	AC_MSG_RESULT([no])
-	m4_default([$4], [AC_MSG_FAILURE(
-[The pkg-config script could not be found or is too old.  Make sure it
-is in your PATH or set the PKG_CONFIG environment variable to the full
-path to pkg-config.
-
-_PKG_TEXT
-
-To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
-        ])
-else
-	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
-	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
-        AC_MSG_RESULT([yes])
-	$3
-fi[]dnl
-])# PKG_CHECK_MODULES
-
-
-# PKG_INSTALLDIR(DIRECTORY)
-# -------------------------
-# Substitutes the variable pkgconfigdir as the location where a module
-# should install pkg-config .pc files. By default the directory is
-# $libdir/pkgconfig, but the default can be changed by passing
-# DIRECTORY. The user can override through the --with-pkgconfigdir
-# parameter.
-AC_DEFUN([PKG_INSTALLDIR],
-[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
-m4_pushdef([pkg_description],
-    [pkg-config installation directory @<:@]pkg_default[@:>@])
-AC_ARG_WITH([pkgconfigdir],
-    [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
-    [with_pkgconfigdir=]pkg_default)
-AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
-m4_popdef([pkg_default])
-m4_popdef([pkg_description])
-]) dnl PKG_INSTALLDIR
-
-
-# PKG_NOARCH_INSTALLDIR(DIRECTORY)
-# -------------------------
-# Substitutes the variable noarch_pkgconfigdir as the location where a
-# module should install arch-independent pkg-config .pc files. By
-# default the directory is $datadir/pkgconfig, but the default can be
-# changed by passing DIRECTORY. The user can override through the
-# --with-noarch-pkgconfigdir parameter.
-AC_DEFUN([PKG_NOARCH_INSTALLDIR],
-[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
-m4_pushdef([pkg_description],
-    [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
-AC_ARG_WITH([noarch-pkgconfigdir],
-    [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
-    [with_noarch_pkgconfigdir=]pkg_default)
-AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
-m4_popdef([pkg_default])
-m4_popdef([pkg_description])
-]) dnl PKG_NOARCH_INSTALLDIR
-
-
-# PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
-# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
-# -------------------------------------------
-# Retrieves the value of the pkg-config variable for the given module.
-AC_DEFUN([PKG_CHECK_VAR],
-[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
-AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
-
-_PKG_CONFIG([$1], [variable="][$3]["], [$2])
-AS_VAR_COPY([$1], [pkg_cv_][$1])
-
-AS_VAR_IF([$1], [""], [$5], [$4])dnl
-])# PKG_CHECK_VAR
-
-m4_include([acinclude.m4])

autoconf/config.guess

@@ -1,12 +1,14 @@
 #! /bin/sh
 # Attempt to guess a canonical system name.
-#   Copyright 1992-2014 Free Software Foundation, Inc.
+#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+#   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+#   Free Software Foundation, Inc.
 
-timestamp='2014-01-01'
+timestamp='2008-01-23'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or
+# the Free Software Foundation; either version 2 of the License, or
 # (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful, but
@@ -15,23 +17,27 @@ timestamp='2014-01-01'
 # General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, see <http://www.gnu.org/licenses/>.
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
+# 02110-1301, USA.
 #
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
 # configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that
+# the same distribution terms that you use for the rest of that program.
-# program.  This Exception is an additional permission under section 7
-# of the GNU General Public License, version 3 ("GPLv3").
-#
-# Originally written by Per Bothner.
-#
-# You can get the latest version of this script from:
-# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
-#
-# Please send patches with a ChangeLog entry to config-patches@gnu.org.
 
 
+# Originally written by Per Bothner <per@bothner.com>.
+# Please send patches to <config-patches@gnu.org>.  Submit a context
+# diff and a properly formatted ChangeLog entry.
+#
+# This script attempts to guess a canonical system name similar to
+# config.sub.  If it succeeds, it prints the system name on stdout, and
+# exits with 0.  Otherwise, it exits with 1.
+#
+# The plan is that this can be called by configure scripts if you
+# don't specify an explicit build system type.
+
 me=`echo "$0" | sed -e 's,.*/,,'`
 
 usage="\
@@ -50,7 +56,8 @@ version="\
 GNU config.guess ($timestamp)
 
 Originally written by Per Bothner.
-Copyright 1992-2014 Free Software Foundation, Inc.
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -132,33 +139,12 @@ UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
 UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
 UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
 
-case "${UNAME_SYSTEM}" in
-Linux|GNU|GNU/*)
-	# If the system lacks a compiler, then just pick glibc.
-	# We could probably try harder.
-	LIBC=gnu
-
-	eval $set_cc_for_build
-	cat <<-EOF > $dummy.c
-	#include <features.h>
-	#if defined(__UCLIBC__)
-	LIBC=uclibc
-	#elif defined(__dietlibc__)
-	LIBC=dietlibc
-	#else
-	LIBC=gnu
-	#endif
-	EOF
-	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC'`
-	;;
-esac
-
 # Note: order is significant - the case branches are not exclusive.
 
 case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
     *:NetBSD:*:*)
 	# NetBSD (nbsd) targets should (where applicable) match one or
-	# more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*,
+	# more of the tupples: *-*-netbsdelf*, *-*-netbsdaout*,
 	# *-*-netbsdecoff* and *-*-netbsd*.  For targets that recently
 	# switched to ELF, *-*-netbsd* would select the old
 	# object file format.  This provides both forward
@@ -184,7 +170,7 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 	    arm*|i386|m68k|ns32k|sh3*|sparc|vax)
 		eval $set_cc_for_build
 		if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
-			| grep -q __ELF__
+			| grep __ELF__ >/dev/null
 		then
 		    # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
 		    # Return netbsd for either.  FIX?
@@ -194,7 +180,7 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 		fi
 		;;
 	    *)
-		os=netbsd
+	        os=netbsd
 		;;
 	esac
 	# The OS release
@@ -215,10 +201,6 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 	# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
 	echo "${machine}-${os}${release}"
 	exit ;;
-    *:Bitrig:*:*)
-	UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'`
-	echo ${UNAME_MACHINE_ARCH}-unknown-bitrig${UNAME_RELEASE}
-	exit ;;
     *:OpenBSD:*:*)
 	UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
 	echo ${UNAME_MACHINE_ARCH}-unknown-openbsd${UNAME_RELEASE}
@@ -241,7 +223,7 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
 		;;
 	*5.*)
-		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
+	        UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
 		;;
 	esac
 	# According to Compaq, /usr/sbin/psrinfo has been available on
@@ -287,10 +269,7 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 	# A Xn.n version is an unreleased experimental baselevel.
 	# 1.2 uses "1.2" for uname -r.
 	echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
-	# Reset EXIT trap before exiting to avoid spurious non-zero exit code.
+	exit ;;
-	exitcode=$?
-	trap '' 0
-	exit $exitcode ;;
     Alpha\ *:Windows_NT*:*)
 	# How do we know it's Interix rather than the generic POSIX subsystem?
 	# Should we change UNAME_MACHINE based on the output of uname instead
@@ -316,12 +295,12 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 	echo s390-ibm-zvmoe
 	exit ;;
     *:OS400:*:*)
-	echo powerpc-ibm-os400
+        echo powerpc-ibm-os400
 	exit ;;
     arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
 	echo arm-acorn-riscix${UNAME_RELEASE}
 	exit ;;
-    arm*:riscos:*:*|arm*:RISCOS:*:*)
+    arm:riscos:*:*|arm:RISCOS:*:*)
 	echo arm-unknown-riscos
 	exit ;;
     SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
@@ -345,33 +324,14 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 	case `/usr/bin/uname -p` in
 	    sparc) echo sparc-icl-nx7; exit ;;
 	esac ;;
-    s390x:SunOS:*:*)
-	echo ${UNAME_MACHINE}-ibm-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
-	exit ;;
     sun4H:SunOS:5.*:*)
 	echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
 	exit ;;
     sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
 	echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
 	exit ;;
-    i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*)
-	echo i386-pc-auroraux${UNAME_RELEASE}
-	exit ;;
     i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
-	eval $set_cc_for_build
+	echo i386-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
-	SUN_ARCH="i386"
-	# If there is a compiler, see if it is configured for 64-bit objects.
-	# Note that the Sun cc does not turn __LP64__ into 1 like gcc does.
-	# This test works for both compilers.
-	if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then
-	    if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
-		(CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
-		grep IS_64BIT_ARCH >/dev/null
-	    then
-		SUN_ARCH="x86_64"
-	    fi
-	fi
-	echo ${SUN_ARCH}-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
 	exit ;;
     sun4*:SunOS:6*:*)
 	# According to config.sub, this is the proper way to canonicalize
@@ -415,23 +375,23 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
     # MiNT.  But MiNT is downward compatible to TOS, so this should
     # be no problem.
     atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
-	echo m68k-atari-mint${UNAME_RELEASE}
+        echo m68k-atari-mint${UNAME_RELEASE}
 	exit ;;
     atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
 	echo m68k-atari-mint${UNAME_RELEASE}
-	exit ;;
+        exit ;;
     *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
-	echo m68k-atari-mint${UNAME_RELEASE}
+        echo m68k-atari-mint${UNAME_RELEASE}
 	exit ;;
     milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
-	echo m68k-milan-mint${UNAME_RELEASE}
+        echo m68k-milan-mint${UNAME_RELEASE}
-	exit ;;
+        exit ;;
     hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
-	echo m68k-hades-mint${UNAME_RELEASE}
+        echo m68k-hades-mint${UNAME_RELEASE}
-	exit ;;
+        exit ;;
     *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
-	echo m68k-unknown-mint${UNAME_RELEASE}
+        echo m68k-unknown-mint${UNAME_RELEASE}
-	exit ;;
+        exit ;;
     m68k:machten:*:*)
 	echo m68k-apple-machten${UNAME_RELEASE}
 	exit ;;
@@ -501,8 +461,8 @@ EOF
 	echo m88k-motorola-sysv3
 	exit ;;
     AViiON:dgux:*:*)
-	# DG/UX returns AViiON for all architectures
+        # DG/UX returns AViiON for all architectures
-	UNAME_PROCESSOR=`/usr/bin/uname -p`
+        UNAME_PROCESSOR=`/usr/bin/uname -p`
 	if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ]
 	then
 	    if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \
@@ -515,7 +475,7 @@ EOF
 	else
 	    echo i586-dg-dgux${UNAME_RELEASE}
 	fi
-	exit ;;
+ 	exit ;;
     M88*:DolphinOS:*:*)	# DolphinOS (SVR3)
 	echo m88k-dolphin-sysv3
 	exit ;;
@@ -572,7 +532,7 @@ EOF
 		echo rs6000-ibm-aix3.2
 	fi
 	exit ;;
-    *:AIX:*:[4567])
+    *:AIX:*:[456])
 	IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
 	if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then
 		IBM_ARCH=rs6000
@@ -615,52 +575,52 @@ EOF
 	    9000/[678][0-9][0-9])
 		if [ -x /usr/bin/getconf ]; then
 		    sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
-		    sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
+                    sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
-		    case "${sc_cpu_version}" in
+                    case "${sc_cpu_version}" in
-		      523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0
+                      523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0
-		      528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1
+                      528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1
-		      532)                      # CPU_PA_RISC2_0
+                      532)                      # CPU_PA_RISC2_0
-			case "${sc_kernel_bits}" in
+                        case "${sc_kernel_bits}" in
-			  32) HP_ARCH="hppa2.0n" ;;
+                          32) HP_ARCH="hppa2.0n" ;;
-			  64) HP_ARCH="hppa2.0w" ;;
+                          64) HP_ARCH="hppa2.0w" ;;
 			  '') HP_ARCH="hppa2.0" ;;   # HP-UX 10.20
-			esac ;;
+                        esac ;;
-		    esac
+                    esac
 		fi
 		if [ "${HP_ARCH}" = "" ]; then
 		    eval $set_cc_for_build
-		    sed 's/^		//' << EOF >$dummy.c
+		    sed 's/^              //' << EOF >$dummy.c
 
-		#define _HPUX_SOURCE
+              #define _HPUX_SOURCE
-		#include <stdlib.h>
+              #include <stdlib.h>
-		#include <unistd.h>
+              #include <unistd.h>
 
-		int main ()
+              int main ()
-		{
+              {
-		#if defined(_SC_KERNEL_BITS)
+              #if defined(_SC_KERNEL_BITS)
-		    long bits = sysconf(_SC_KERNEL_BITS);
+                  long bits = sysconf(_SC_KERNEL_BITS);
-		#endif
+              #endif
-		    long cpu  = sysconf (_SC_CPU_VERSION);
+                  long cpu  = sysconf (_SC_CPU_VERSION);
 
-		    switch (cpu)
+                  switch (cpu)
-			{
+              	{
-			case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
+              	case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
-			case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
+              	case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
-			case CPU_PA_RISC2_0:
+              	case CPU_PA_RISC2_0:
-		#if defined(_SC_KERNEL_BITS)
+              #if defined(_SC_KERNEL_BITS)
-			    switch (bits)
+              	    switch (bits)
-				{
+              		{
-				case 64: puts ("hppa2.0w"); break;
+              		case 64: puts ("hppa2.0w"); break;
-				case 32: puts ("hppa2.0n"); break;
+              		case 32: puts ("hppa2.0n"); break;
-				default: puts ("hppa2.0"); break;
+              		default: puts ("hppa2.0"); break;
-				} break;
+              		} break;
-		#else  /* !defined(_SC_KERNEL_BITS) */
+              #else  /* !defined(_SC_KERNEL_BITS) */
-			    puts ("hppa2.0"); break;
+              	    puts ("hppa2.0"); break;
-		#endif
+              #endif
-			default: puts ("hppa1.0"); break;
+              	default: puts ("hppa1.0"); break;
-			}
+              	}
-		    exit (0);
+                  exit (0);
-		}
+              }
 EOF
 		    (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy`
 		    test -z "$HP_ARCH" && HP_ARCH=hppa
@@ -680,7 +640,7 @@ EOF
 	    # => hppa64-hp-hpux11.23
 
 	    if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) |
-		grep -q __LP64__
+		grep __LP64__ >/dev/null
 	    then
 		HP_ARCH="hppa2.0w"
 	    else
@@ -751,22 +711,22 @@ EOF
 	exit ;;
     C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
 	echo c1-convex-bsd
-	exit ;;
+        exit ;;
     C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
 	if getsysinfo -f scalar_acc
 	then echo c32-convex-bsd
 	else echo c2-convex-bsd
 	fi
-	exit ;;
+        exit ;;
     C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
 	echo c34-convex-bsd
-	exit ;;
+        exit ;;
     C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
 	echo c38-convex-bsd
-	exit ;;
+        exit ;;
     C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
 	echo c4-convex-bsd
-	exit ;;
+        exit ;;
     CRAY*Y-MP:*:*:*)
 	echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
 	exit ;;
@@ -790,14 +750,14 @@ EOF
 	exit ;;
     F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
 	FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
-	FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
+        FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
-	FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'`
+        FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'`
-	echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+        echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
-	exit ;;
+        exit ;;
     5000:UNIX_System_V:4.*:*)
-	FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
+        FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
-	FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'`
+        FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'`
-	echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+        echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
 	exit ;;
     i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
 	echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE}
@@ -809,39 +769,34 @@ EOF
 	echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
 	exit ;;
     *:FreeBSD:*:*)
-	UNAME_PROCESSOR=`/usr/bin/uname -p`
+	case ${UNAME_MACHINE} in
-	case ${UNAME_PROCESSOR} in
+	    pc98)
+		echo i386-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
 	    amd64)
 		echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
 	    *)
-		echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
+		echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
 	esac
 	exit ;;
     i*:CYGWIN*:*)
 	echo ${UNAME_MACHINE}-pc-cygwin
 	exit ;;
-    *:MINGW64*:*)
-	echo ${UNAME_MACHINE}-pc-mingw64
-	exit ;;
     *:MINGW*:*)
 	echo ${UNAME_MACHINE}-pc-mingw32
 	exit ;;
-    i*:MSYS*:*)
-	echo ${UNAME_MACHINE}-pc-msys
-	exit ;;
     i*:windows32*:*)
-	# uname -m includes "-pc" on this system.
+    	# uname -m includes "-pc" on this system.
-	echo ${UNAME_MACHINE}-mingw32
+    	echo ${UNAME_MACHINE}-mingw32
 	exit ;;
     i*:PW*:*)
 	echo ${UNAME_MACHINE}-pc-pw32
 	exit ;;
-    *:Interix*:*)
+    *:Interix*:[3456]*)
-	case ${UNAME_MACHINE} in
+    	case ${UNAME_MACHINE} in
 	    x86)
 		echo i586-pc-interix${UNAME_RELEASE}
 		exit ;;
-	    authenticamd | genuineintel | EM64T)
+	    EM64T | authenticamd)
 		echo x86_64-unknown-interix${UNAME_RELEASE}
 		exit ;;
 	    IA64)
@@ -851,9 +806,6 @@ EOF
     [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*)
 	echo i${UNAME_MACHINE}-pc-mks
 	exit ;;
-    8664:Windows_NT:*)
-	echo x86_64-pc-mks
-	exit ;;
     i*:Windows_NT*:* | Pentium*:Windows_NT*:*)
 	# How do we know it's Interix rather than the generic POSIX subsystem?
 	# It also conflicts with pre-2.0 versions of AT&T UWIN. Should we
@@ -874,21 +826,100 @@ EOF
 	exit ;;
     *:GNU:*:*)
 	# the GNU system
-	echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-${LIBC}`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
+	echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
 	exit ;;
     *:GNU/*:*:*)
 	# other systems with GNU libc and userland
-	echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-${LIBC}
+	echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-gnu
 	exit ;;
     i*86:Minix:*:*)
 	echo ${UNAME_MACHINE}-pc-minix
 	exit ;;
-    aarch64:Linux:*:*)
+    arm*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	eval $set_cc_for_build
+	if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
+	    | grep -q __ARM_EABI__
+	then
+	    echo ${UNAME_MACHINE}-unknown-linux-gnu
+	else
+	    echo ${UNAME_MACHINE}-unknown-linux-gnueabi
+	fi
 	exit ;;
-    aarch64_be:Linux:*:*)
+    avr32*:Linux:*:*)
-	UNAME_MACHINE=aarch64_be
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    cris:Linux:*:*)
+	echo cris-axis-linux-gnu
+	exit ;;
+    crisv32:Linux:*:*)
+	echo crisv32-axis-linux-gnu
+	exit ;;
+    frv:Linux:*:*)
+    	echo frv-unknown-linux-gnu
+	exit ;;
+    ia64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    m32r*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    m68*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    mips:Linux:*:*)
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+	#undef CPU
+	#undef mips
+	#undef mipsel
+	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
+	CPU=mipsel
+	#else
+	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
+	CPU=mips
+	#else
+	CPU=
+	#endif
+	#endif
+EOF
+	eval "`$CC_FOR_BUILD -E $dummy.c 2>/dev/null | sed -n '
+	    /^CPU/{
+		s: ::g
+		p
+	    }'`"
+	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; }
+	;;
+    mips64:Linux:*:*)
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+	#undef CPU
+	#undef mips64
+	#undef mips64el
+	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
+	CPU=mips64el
+	#else
+	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
+	CPU=mips64
+	#else
+	CPU=
+	#endif
+	#endif
+EOF
+	eval "`$CC_FOR_BUILD -E $dummy.c 2>/dev/null | sed -n '
+	    /^CPU/{
+		s: ::g
+		p
+	    }'`"
+	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; }
+	;;
+    or32:Linux:*:*)
+	echo or32-unknown-linux-gnu
+	exit ;;
+    ppc:Linux:*:*)
+	echo powerpc-unknown-linux-gnu
+	exit ;;
+    ppc64:Linux:*:*)
+	echo powerpc64-unknown-linux-gnu
 	exit ;;
     alpha:Linux:*:*)
 	case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
@@ -899,132 +930,106 @@ EOF
 	  EV6)   UNAME_MACHINE=alphaev6 ;;
 	  EV67)  UNAME_MACHINE=alphaev67 ;;
 	  EV68*) UNAME_MACHINE=alphaev68 ;;
-	esac
+        esac
-	objdump --private-headers /bin/sh | grep -q ld.so.1
+	objdump --private-headers /bin/sh | grep ld.so.1 >/dev/null
-	if test "$?" = 0 ; then LIBC="gnulibc1" ; fi
+	if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC}
-	exit ;;
-    arc:Linux:*:* | arceb:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
-	exit ;;
-    arm*:Linux:*:*)
-	eval $set_cc_for_build
-	if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
-	    | grep -q __ARM_EABI__
-	then
-	    echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
-	else
-	    if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
-		| grep -q __ARM_PCS_VFP
-	    then
-		echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabi
-	    else
-		echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabihf
-	    fi
-	fi
-	exit ;;
-    avr32*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
-	exit ;;
-    cris:Linux:*:*)
-	echo ${UNAME_MACHINE}-axis-linux-${LIBC}
-	exit ;;
-    crisv32:Linux:*:*)
-	echo ${UNAME_MACHINE}-axis-linux-${LIBC}
-	exit ;;
-    frv:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
-	exit ;;
-    hexagon:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
-	exit ;;
-    i*86:Linux:*:*)
-	echo ${UNAME_MACHINE}-pc-linux-${LIBC}
-	exit ;;
-    ia64:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
-	exit ;;
-    m32r*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
-	exit ;;
-    m68*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
-	exit ;;
-    mips:Linux:*:* | mips64:Linux:*:*)
-	eval $set_cc_for_build
-	sed 's/^	//' << EOF >$dummy.c
-	#undef CPU
-	#undef ${UNAME_MACHINE}
-	#undef ${UNAME_MACHINE}el
-	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
-	CPU=${UNAME_MACHINE}el
-	#else
-	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
-	CPU=${UNAME_MACHINE}
-	#else
-	CPU=
-	#endif
-	#endif
-EOF
-	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'`
-	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-${LIBC}"; exit; }
-	;;
-    or1k:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
-	exit ;;
-    or32:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
-	exit ;;
-    padre:Linux:*:*)
-	echo sparc-unknown-linux-${LIBC}
-	exit ;;
-    parisc64:Linux:*:* | hppa64:Linux:*:*)
-	echo hppa64-unknown-linux-${LIBC}
 	exit ;;
     parisc:Linux:*:* | hppa:Linux:*:*)
 	# Look for CPU level
 	case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
-	  PA7*) echo hppa1.1-unknown-linux-${LIBC} ;;
+	  PA7*) echo hppa1.1-unknown-linux-gnu ;;
-	  PA8*) echo hppa2.0-unknown-linux-${LIBC} ;;
+	  PA8*) echo hppa2.0-unknown-linux-gnu ;;
-	  *)    echo hppa-unknown-linux-${LIBC} ;;
+	  *)    echo hppa-unknown-linux-gnu ;;
 	esac
 	exit ;;
-    ppc64:Linux:*:*)
+    parisc64:Linux:*:* | hppa64:Linux:*:*)
-	echo powerpc64-unknown-linux-${LIBC}
+	echo hppa64-unknown-linux-gnu
-	exit ;;
-    ppc:Linux:*:*)
-	echo powerpc-unknown-linux-${LIBC}
-	exit ;;
-    ppc64le:Linux:*:*)
-	echo powerpc64le-unknown-linux-${LIBC}
-	exit ;;
-    ppcle:Linux:*:*)
-	echo powerpcle-unknown-linux-${LIBC}
 	exit ;;
     s390:Linux:*:* | s390x:Linux:*:*)
-	echo ${UNAME_MACHINE}-ibm-linux-${LIBC}
+	echo ${UNAME_MACHINE}-ibm-linux
 	exit ;;
     sh64*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+    	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;
     sh*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;
     sparc:Linux:*:* | sparc64:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
-	exit ;;
-    tile*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     vax:Linux:*:*)
-	echo ${UNAME_MACHINE}-dec-linux-${LIBC}
+	echo ${UNAME_MACHINE}-dec-linux-gnu
 	exit ;;
     x86_64:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	echo x86_64-unknown-linux-gnu
 	exit ;;
     xtensa*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+    	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;
+    i*86:Linux:*:*)
+	# The BFD linker knows what the default object file format is, so
+	# first see if it will tell us. cd to the root directory to prevent
+	# problems with other programs or directories called `ld' in the path.
+	# Set LC_ALL=C to ensure ld outputs messages in English.
+	ld_supported_targets=`cd /; LC_ALL=C ld --help 2>&1 \
+			 | sed -ne '/supported targets:/!d
+				    s/[ 	][ 	]*/ /g
+				    s/.*supported targets: *//
+				    s/ .*//
+				    p'`
+        case "$ld_supported_targets" in
+	  elf32-i386)
+		TENTATIVE="${UNAME_MACHINE}-pc-linux-gnu"
+		;;
+	  a.out-i386-linux)
+		echo "${UNAME_MACHINE}-pc-linux-gnuaout"
+		exit ;;
+	  coff-i386)
+		echo "${UNAME_MACHINE}-pc-linux-gnucoff"
+		exit ;;
+	  "")
+		# Either a pre-BFD a.out linker (linux-gnuoldld) or
+		# one that does not give us useful --help.
+		echo "${UNAME_MACHINE}-pc-linux-gnuoldld"
+		exit ;;
+	esac
+	# Determine whether the default compiler is a.out or elf
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+	#include <features.h>
+	#ifdef __ELF__
+	# ifdef __GLIBC__
+	#  if __GLIBC__ >= 2
+	LIBC=gnu
+	#  else
+	LIBC=gnulibc1
+	#  endif
+	# else
+	LIBC=gnulibc1
+	# endif
+	#else
+	#if defined(__INTEL_COMPILER) || defined(__PGI) || defined(__SUNPRO_C) || defined(__SUNPRO_CC)
+	LIBC=gnu
+	#else
+	LIBC=gnuaout
+	#endif
+	#endif
+	#ifdef __dietlibc__
+	LIBC=dietlibc
+	#endif
+EOF
+	eval "`$CC_FOR_BUILD -E $dummy.c 2>/dev/null | sed -n '
+	    /^LIBC/{
+		s: ::g
+		p
+	    }'`"
+	test x"${LIBC}" != x && {
+		echo "${UNAME_MACHINE}-pc-linux-${LIBC}"
+		exit
+	}
+	test x"${TENTATIVE}" != x && { echo "${TENTATIVE}"; exit; }
+	;;
     i*86:DYNIX/ptx:4*:*)
 	# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
 	# earlier versions are messed up and put the nodename in both
@@ -1032,11 +1037,11 @@ EOF
 	echo i386-sequent-sysv4
 	exit ;;
     i*86:UNIX_SV:4.2MP:2.*)
-	# Unixware is an offshoot of SVR4, but it has its own version
+        # Unixware is an offshoot of SVR4, but it has its own version
-	# number series starting with 2...
+        # number series starting with 2...
-	# I am not positive that other SVR4 systems won't match this,
+        # I am not positive that other SVR4 systems won't match this,
 	# I just have to hope.  -- rms.
-	# Use sysv4.2uw... so that sysv4* matches it.
+        # Use sysv4.2uw... so that sysv4* matches it.
 	echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION}
 	exit ;;
     i*86:OS/2:*:*)
@@ -1053,7 +1058,7 @@ EOF
     i*86:syllable:*:*)
 	echo ${UNAME_MACHINE}-pc-syllable
 	exit ;;
-    i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*)
+    i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.0*:*)
 	echo i386-unknown-lynxos${UNAME_RELEASE}
 	exit ;;
     i*86:*DOS:*:*)
@@ -1068,7 +1073,7 @@ EOF
 	fi
 	exit ;;
     i*86:*:5:[678]*)
-	# UnixWare 7.x, OpenUNIX and OpenServer 6.
+    	# UnixWare 7.x, OpenUNIX and OpenServer 6.
 	case `/bin/uname -X | grep "^Machine"` in
 	    *486*)	     UNAME_MACHINE=i486 ;;
 	    *Pentium)	     UNAME_MACHINE=i586 ;;
@@ -1096,13 +1101,10 @@ EOF
 	exit ;;
     pc:*:*:*)
 	# Left here for compatibility:
-	# uname -m prints for DJGPP always 'pc', but it prints nothing about
+        # uname -m prints for DJGPP always 'pc', but it prints nothing about
-	# the processor, so we play safe by assuming i586.
+        # the processor, so we play safe by assuming i386.
-	# Note: whatever this is, it MUST be the same as what config.sub
+	echo i386-pc-msdosdjgpp
-	# prints for the "djgpp" host, or else GDB configury will decide that
+        exit ;;
-	# this is a cross-build.
-	echo i586-pc-msdosdjgpp
-	exit ;;
     Intel:Mach:3*:*)
 	echo i386-pc-mach3
 	exit ;;
@@ -1137,18 +1139,8 @@ EOF
 	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
 	  && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
     3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
-	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+        /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
-	  && { echo i486-ncr-sysv4; exit; } ;;
+          && { echo i486-ncr-sysv4; exit; } ;;
-    NCR*:*:4.2:* | MPRAS*:*:4.2:*)
-	OS_REL='.3'
-	test -r /etc/.relid \
-	    && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
-	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
-	    && { echo i486-ncr-sysv4.3${OS_REL}; exit; }
-	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
-	    && { echo i586-ncr-sysv4.3${OS_REL}; exit; }
-	/bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \
-	    && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
     m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
 	echo m68k-unknown-lynxos${UNAME_RELEASE}
 	exit ;;
@@ -1161,7 +1153,7 @@ EOF
     rs6000:LynxOS:2.*:*)
 	echo rs6000-unknown-lynxos${UNAME_RELEASE}
 	exit ;;
-    PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*)
+    PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.0*:*)
 	echo powerpc-unknown-lynxos${UNAME_RELEASE}
 	exit ;;
     SM[BE]S:UNIX_SV:*:*)
@@ -1181,10 +1173,10 @@ EOF
 		echo ns32k-sni-sysv
 	fi
 	exit ;;
-    PENTIUM:*:4.0*:*)	# Unisys `ClearPath HMP IX 4000' SVR4/MP effort
+    PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort
-			# says <Richard.M.Bartel@ccMail.Census.GOV>
+                      # says <Richard.M.Bartel@ccMail.Census.GOV>
-	echo i586-unisys-sysv4
+        echo i586-unisys-sysv4
-	exit ;;
+        exit ;;
     *:UNIX_System_V:4*:FTX*)
 	# From Gerald Hewes <hewes@openmarket.com>.
 	# How about differentiating between stratus architectures? -djm
@@ -1210,11 +1202,11 @@ EOF
 	exit ;;
     R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
 	if [ -d /usr/nec ]; then
-		echo mips-nec-sysv${UNAME_RELEASE}
+	        echo mips-nec-sysv${UNAME_RELEASE}
 	else
-		echo mips-unknown-sysv${UNAME_RELEASE}
+	        echo mips-unknown-sysv${UNAME_RELEASE}
 	fi
-	exit ;;
+        exit ;;
     BeBox:BeOS:*:*)	# BeOS running on hardware made by Be, PPC only.
 	echo powerpc-be-beos
 	exit ;;
@@ -1224,12 +1216,6 @@ EOF
     BePC:BeOS:*:*)	# BeOS running on Intel PC compatible.
 	echo i586-pc-beos
 	exit ;;
-    BePC:Haiku:*:*)	# Haiku running on Intel PC compatible.
-	echo i586-pc-haiku
-	exit ;;
-    x86_64:Haiku:*:*)
-	echo x86_64-unknown-haiku
-	exit ;;
     SX-4:SUPER-UX:*:*)
 	echo sx4-nec-superux${UNAME_RELEASE}
 	exit ;;
@@ -1256,31 +1242,9 @@ EOF
 	exit ;;
     *:Darwin:*:*)
 	UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
-	eval $set_cc_for_build
+	case $UNAME_PROCESSOR in
-	if test "$UNAME_PROCESSOR" = unknown ; then
+	    unknown) UNAME_PROCESSOR=powerpc ;;
-	    UNAME_PROCESSOR=powerpc
+	esac
-	fi
-	if test `echo "$UNAME_RELEASE" | sed -e 's/\..*//'` -le 10 ; then
-	    if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then
-		if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
-		    (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
-		    grep IS_64BIT_ARCH >/dev/null
-		then
-		    case $UNAME_PROCESSOR in
-			i386) UNAME_PROCESSOR=x86_64 ;;
-			powerpc) UNAME_PROCESSOR=powerpc64 ;;
-		    esac
-		fi
-	    fi
-	elif test "$UNAME_PROCESSOR" = i386 ; then
-	    # Avoid executing cc on OS X 10.9, as it ships with a stub
-	    # that puts up a graphical alert prompting to install
-	    # developer tools.  Any system running Mac OS X 10.7 or
-	    # later (Darwin 11 and later) is required to have a 64-bit
-	    # processor. This is not true of the ARM version of Darwin
-	    # that Apple uses in portable devices.
-	    UNAME_PROCESSOR=x86_64
-	fi
 	echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE}
 	exit ;;
     *:procnto*:*:* | *:QNX:[0123456789]*:*)
@@ -1294,10 +1258,7 @@ EOF
     *:QNX:*:4*)
 	echo i386-pc-qnx
 	exit ;;
-    NEO-?:NONSTOP_KERNEL:*:*)
+    NSE-?:NONSTOP_KERNEL:*:*)
-	echo neo-tandem-nsk${UNAME_RELEASE}
-	exit ;;
-    NSE-*:NONSTOP_KERNEL:*:*)
 	echo nse-tandem-nsk${UNAME_RELEASE}
 	exit ;;
     NSR-?:NONSTOP_KERNEL:*:*)
@@ -1342,13 +1303,13 @@ EOF
 	echo pdp10-unknown-its
 	exit ;;
     SEI:*:*:SEIUX)
-	echo mips-sei-seiux${UNAME_RELEASE}
+        echo mips-sei-seiux${UNAME_RELEASE}
 	exit ;;
     *:DragonFly:*:*)
 	echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
 	exit ;;
     *:*VMS:*:*)
-	UNAME_MACHINE=`(uname -p) 2>/dev/null`
+    	UNAME_MACHINE=`(uname -p) 2>/dev/null`
 	case "${UNAME_MACHINE}" in
 	    A*) echo alpha-dec-vms ; exit ;;
 	    I*) echo ia64-dec-vms ; exit ;;
@@ -1363,14 +1324,11 @@ EOF
     i*86:rdos:*:*)
 	echo ${UNAME_MACHINE}-pc-rdos
 	exit ;;
-    i*86:AROS:*:*)
-	echo ${UNAME_MACHINE}-pc-aros
-	exit ;;
-    x86_64:VMkernel:*:*)
-	echo ${UNAME_MACHINE}-unknown-esx
-	exit ;;
 esac
 
+#echo '(No uname command or uname output not recognized.)' 1>&2
+#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2
+
 eval $set_cc_for_build
 cat >$dummy.c <<EOF
 #ifdef _SEQUENT_
@@ -1388,11 +1346,11 @@ main ()
 #include <sys/param.h>
   printf ("m68k-sony-newsos%s\n",
 #ifdef NEWSOS4
-	"4"
+          "4"
 #else
-	""
+	  ""
 #endif
-	); exit (0);
+         ); exit (0);
 #endif
 #endif
 

autoconf/config.sub

@@ -1,40 +1,44 @@
 #! /bin/sh
 # Configuration validation subroutine script.
-#   Copyright 1992-2014 Free Software Foundation, Inc.
+#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+#   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+#   Free Software Foundation, Inc.
 
-timestamp='2014-01-01'
+timestamp='2008-01-16'
 
-# This file is free software; you can redistribute it and/or modify it
+# This file is (in principle) common to ALL GNU software.
-# under the terms of the GNU General Public License as published by
+# The presence of a machine in this file suggests that SOME GNU software
-# the Free Software Foundation; either version 3 of the License, or
+# can handle that machine.  It does not imply ALL GNU software can.
+#
+# This file is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
 # (at your option) any later version.
 #
-# This program is distributed in the hope that it will be useful, but
+# This program is distributed in the hope that it will be useful,
-# WITHOUT ANY WARRANTY; without even the implied warranty of
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# General Public License for more details.
+# GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, see <http://www.gnu.org/licenses/>.
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
+# 02110-1301, USA.
 #
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
 # configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that
+# the same distribution terms that you use for the rest of that program.
-# program.  This Exception is an additional permission under section 7
-# of the GNU General Public License, version 3 ("GPLv3").
 
 
-# Please send patches with a ChangeLog entry to config-patches@gnu.org.
+# Please send patches to <config-patches@gnu.org>.  Submit a context
+# diff and a properly formatted ChangeLog entry.
 #
 # Configuration subroutine to validate and canonicalize a configuration type.
 # Supply the specified configuration type as an argument.
 # If it is invalid, we print an error message on stderr and exit with code 1.
 # Otherwise, we print the canonical config type on stdout and succeed.
 
-# You can get the latest version of this script from:
-# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD
-
 # This file is supposed to be the same for all GNU packages
 # and recognize all the CPU types, system types and aliases
 # that are meaningful with *any* GNU software.
@@ -68,7 +72,8 @@ Report bugs and patches to <config-patches@gnu.org>."
 version="\
 GNU config.sub ($timestamp)
 
-Copyright 1992-2014 Free Software Foundation, Inc.
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -115,18 +120,12 @@ esac
 # Here we must recognize all the valid KERNEL-OS combinations.
 maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
 case $maybe_os in
-  nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
+  nto-qnx* | linux-gnu* | linux-dietlibc | linux-newlib* | linux-uclibc* | \
-  linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
+  uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* | \
-  knetbsd*-gnu* | netbsd*-gnu* | \
-  kopensolaris*-gnu* | \
   storm-chaos* | os2-emx* | rtmk-nova*)
     os=-$maybe_os
     basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
     ;;
-  android-linux)
-    os=-linux-android
-    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown
-    ;;
   *)
     basic_machine=`echo $1 | sed 's/-[^-]*$//'`
     if [ $basic_machine != $1 ]
@@ -149,13 +148,10 @@ case $os in
 	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
 	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
 	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
-	-apple | -axis | -knuth | -cray | -microblaze*)
+	-apple | -axis | -knuth | -cray)
 		os=
 		basic_machine=$1
 		;;
-	-bluegene*)
-		os=-cnk
-		;;
 	-sim | -cisco | -oki | -wec | -winbond)
 		os=
 		basic_machine=$1
@@ -170,10 +166,10 @@ case $os in
 		os=-chorusos
 		basic_machine=$1
 		;;
-	-chorusrdb)
+ 	-chorusrdb)
-		os=-chorusrdb
+ 		os=-chorusrdb
 		basic_machine=$1
-		;;
+ 		;;
 	-hiux*)
 		os=-hiuxwe2
 		;;
@@ -218,12 +214,6 @@ case $os in
 	-isc*)
 		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
 		;;
-	-lynx*178)
-		os=-lynxos178
-		;;
-	-lynx*5)
-		os=-lynxos5
-		;;
 	-lynx*)
 		os=-lynxos
 		;;
@@ -248,35 +238,24 @@ case $basic_machine in
 	# Some are omitted here because they have special meanings below.
 	1750a | 580 \
 	| a29k \
-	| aarch64 | aarch64_be \
 	| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
 	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
 	| am33_2.0 \
-	| arc | arceb \
+	| arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr | avr32 \
-	| arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \
-	| avr | avr32 \
-	| be32 | be64 \
 	| bfin \
-	| c4x | c8051 | clipper \
+	| c4x | clipper \
 	| d10v | d30v | dlx | dsp16xx \
-	| epiphany \
 	| fido | fr30 | frv \
 	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
-	| hexagon \
 	| i370 | i860 | i960 | ia64 \
 	| ip2k | iq2000 \
-	| k1om \
-	| le32 | le64 \
-	| lm32 \
 	| m32c | m32r | m32rle | m68000 | m68k | m88k \
-	| maxq | mb | microblaze | microblazeel | mcore | mep | metag \
+	| maxq | mb | microblaze | mcore | mep \
 	| mips | mipsbe | mipseb | mipsel | mipsle \
 	| mips16 \
 	| mips64 | mips64el \
-	| mips64octeon | mips64octeonel \
-	| mips64orion | mips64orionel \
-	| mips64r5900 | mips64r5900el \
 	| mips64vr | mips64vrel \
+	| mips64orion | mips64orionel \
 	| mips64vr4100 | mips64vr4100el \
 	| mips64vr4300 | mips64vr4300el \
 	| mips64vr5000 | mips64vr5000el \
@@ -287,45 +266,31 @@ case $basic_machine in
 	| mipsisa64r2 | mipsisa64r2el \
 	| mipsisa64sb1 | mipsisa64sb1el \
 	| mipsisa64sr71k | mipsisa64sr71kel \
-	| mipsr5900 | mipsr5900el \
 	| mipstx39 | mipstx39el \
 	| mn10200 | mn10300 \
-	| moxie \
 	| mt \
 	| msp430 \
-	| nds32 | nds32le | nds32be \
+	| nios | nios2 \
-	| nios | nios2 | nios2eb | nios2el \
 	| ns16k | ns32k \
-	| open8 \
+	| or32 \
-	| or1k | or32 \
 	| pdp10 | pdp11 | pj | pjl \
-	| powerpc | powerpc64 | powerpc64le | powerpcle \
+	| powerpc | powerpc64 | powerpc64le | powerpcle | ppcbe \
 	| pyramid \
-	| rl78 | rx \
 	| score \
-	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
+	| sh | sh[1234] | sh[24]a | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
 	| sh64 | sh64le \
 	| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
 	| sparcv8 | sparcv9 | sparcv9b | sparcv9v \
-	| spu \
+	| spu | strongarm \
-	| tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
+	| tahoe | thumb | tic4x | tic80 | tron \
-	| ubicom32 \
+	| v850 | v850e \
-	| v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
 	| we32k \
-	| x86 | xc16x | xstormy16 | xtensa \
+	| x86 | xc16x | xscale | xscalee[bl] | xstormy16 | xtensa \
-	| z8k | z80)
+	| z8k)
 		basic_machine=$basic_machine-unknown
 		;;
-	c54x)
+	m6811 | m68hc11 | m6812 | m68hc12)
-		basic_machine=tic54x-unknown
+		# Motorola 68HC11/12.
-		;;
-	c55x)
-		basic_machine=tic55x-unknown
-		;;
-	c6x)
-		basic_machine=tic6x-unknown
-		;;
-	m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip)
 		basic_machine=$basic_machine-unknown
 		os=-none
 		;;
@@ -335,21 +300,6 @@ case $basic_machine in
 		basic_machine=mt-unknown
 		;;
 
-	strongarm | thumb | xscale)
-		basic_machine=arm-unknown
-		;;
-	xgate)
-		basic_machine=$basic_machine-unknown
-		os=-none
-		;;
-	xscaleeb)
-		basic_machine=armeb-unknown
-		;;
-
-	xscaleel)
-		basic_machine=armel-unknown
-		;;
-
 	# We use `pc' rather than `unknown'
 	# because (1) that's what they normally are, and
 	# (2) the word "unknown" tends to confuse beginning users.
@@ -364,38 +314,29 @@ case $basic_machine in
 	# Recognize the basic CPU types with company name.
 	580-* \
 	| a29k-* \
-	| aarch64-* | aarch64_be-* \
 	| alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
 	| alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
-	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \
+	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* \
 	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
 	| avr-* | avr32-* \
-	| be32-* | be64-* \
 	| bfin-* | bs2000-* \
-	| c[123]* | c30-* | [cjt]90-* | c4x-* \
+	| c[123]* | c30-* | [cjt]90-* | c4x-* | c54x-* | c55x-* | c6x-* \
-	| c8051-* | clipper-* | craynv-* | cydra-* \
+	| clipper-* | craynv-* | cydra-* \
 	| d10v-* | d30v-* | dlx-* \
 	| elxsi-* \
 	| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
 	| h8300-* | h8500-* \
 	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
-	| hexagon-* \
 	| i*86-* | i860-* | i960-* | ia64-* \
 	| ip2k-* | iq2000-* \
-	| k1om-* \
-	| le32-* | le64-* \
-	| lm32-* \
 	| m32c-* | m32r-* | m32rle-* \
 	| m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
-	| m88110-* | m88k-* | maxq-* | mcore-* | metag-* \
+	| m88110-* | m88k-* | maxq-* | mcore-* \
-	| microblaze-* | microblazeel-* \
 	| mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
 	| mips16-* \
 	| mips64-* | mips64el-* \
-	| mips64octeon-* | mips64octeonel-* \
-	| mips64orion-* | mips64orionel-* \
-	| mips64r5900-* | mips64r5900el-* \
 	| mips64vr-* | mips64vrel-* \
+	| mips64orion-* | mips64orionel-* \
 	| mips64vr4100-* | mips64vr4100el-* \
 	| mips64vr4300-* | mips64vr4300el-* \
 	| mips64vr5000-* | mips64vr5000el-* \
@@ -406,37 +347,31 @@ case $basic_machine in
 	| mipsisa64r2-* | mipsisa64r2el-* \
 	| mipsisa64sb1-* | mipsisa64sb1el-* \
 	| mipsisa64sr71k-* | mipsisa64sr71kel-* \
-	| mipsr5900-* | mipsr5900el-* \
 	| mipstx39-* | mipstx39el-* \
 	| mmix-* \
 	| mt-* \
 	| msp430-* \
-	| nds32-* | nds32le-* | nds32be-* \
+	| nios-* | nios2-* \
-	| nios-* | nios2-* | nios2eb-* | nios2el-* \
 	| none-* | np1-* | ns16k-* | ns32k-* \
-	| open8-* \
 	| orion-* \
 	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
-	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
+	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* | ppcbe-* \
 	| pyramid-* \
-	| rl78-* | romp-* | rs6000-* | rx-* \
+	| romp-* | rs6000-* \
-	| sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
+	| sh-* | sh[1234]-* | sh[24]a-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
 	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
 	| sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
 	| sparclite-* \
-	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \
+	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | strongarm-* | sv1-* | sx?-* \
-	| tahoe-* \
+	| tahoe-* | thumb-* \
 	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
-	| tile*-* \
 	| tron-* \
-	| ubicom32-* \
+	| v850-* | v850e-* | vax-* \
-	| v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
-	| vax-* \
 	| we32k-* \
-	| x86-* | x86_64-* | xc16x-* | xps100-* \
+	| x86-* | x86_64-* | xc16x-* | xps100-* | xscale-* | xscalee[bl]-* \
 	| xstormy16-* | xtensa*-* \
 	| ymp-* \
-	| z8k-* | z80-*)
+	| z8k-*)
 		;;
 	# Recognize the basic CPU types without company name, with glob match.
 	xtensa*)
@@ -458,7 +393,7 @@ case $basic_machine in
 		basic_machine=a29k-amd
 		os=-udi
 		;;
-	abacus)
+    	abacus)
 		basic_machine=abacus-unknown
 		;;
 	adobe68k)
@@ -504,10 +439,6 @@ case $basic_machine in
 		basic_machine=m68k-apollo
 		os=-bsd
 		;;
-	aros)
-		basic_machine=i386-pc
-		os=-aros
-		;;
 	aux)
 		basic_machine=m68k-apple
 		os=-aux
@@ -524,27 +455,10 @@ case $basic_machine in
 		basic_machine=bfin-`echo $basic_machine | sed 's/^[^-]*-//'`
 		os=-linux
 		;;
-	bluegene*)
-		basic_machine=powerpc-ibm
-		os=-cnk
-		;;
-	c54x-*)
-		basic_machine=tic54x-`echo $basic_machine | sed 's/^[^-]*-//'`
-		;;
-	c55x-*)
-		basic_machine=tic55x-`echo $basic_machine | sed 's/^[^-]*-//'`
-		;;
-	c6x-*)
-		basic_machine=tic6x-`echo $basic_machine | sed 's/^[^-]*-//'`
-		;;
 	c90)
 		basic_machine=c90-cray
 		os=-unicos
 		;;
-	cegcc)
-		basic_machine=arm-unknown
-		os=-cegcc
-		;;
 	convex-c1)
 		basic_machine=c1-convex
 		os=-bsd
@@ -573,7 +487,7 @@ case $basic_machine in
 		basic_machine=craynv-cray
 		os=-unicosmp
 		;;
-	cr16 | cr16-*)
+	cr16)
 		basic_machine=cr16-unknown
 		os=-elf
 		;;
@@ -612,10 +526,6 @@ case $basic_machine in
 		basic_machine=m88k-motorola
 		os=-sysv3
 		;;
-	dicos)
-		basic_machine=i686-pc
-		os=-dicos
-		;;
 	djgpp)
 		basic_machine=i586-pc
 		os=-msdosdjgpp
@@ -731,6 +641,7 @@ case $basic_machine in
 	i370-ibm* | ibm*)
 		basic_machine=i370-ibm
 		;;
+# I'm not sure what "Sysv32" means.  Should this be sysv3.2?
 	i*86v32)
 		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
 		os=-sysv32
@@ -788,15 +699,8 @@ case $basic_machine in
 		basic_machine=ns32k-utek
 		os=-sysv
 		;;
-	microblaze*)
-		basic_machine=microblaze-xilinx
-		;;
-	mingw64)
-		basic_machine=x86_64-pc
-		os=-mingw64
-		;;
 	mingw32)
-		basic_machine=i686-pc
+		basic_machine=i386-pc
 		os=-mingw32
 		;;
 	mingw32ce)
@@ -831,18 +735,10 @@ case $basic_machine in
 	ms1-*)
 		basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'`
 		;;
-	msys)
-		basic_machine=i686-pc
-		os=-msys
-		;;
 	mvs)
 		basic_machine=i370-ibm
 		os=-mvs
 		;;
-	nacl)
-		basic_machine=le32-unknown
-		os=-nacl
-		;;
 	ncr3000)
 		basic_machine=i486-ncr
 		os=-sysv4
@@ -907,12 +803,6 @@ case $basic_machine in
 	np1)
 		basic_machine=np1-gould
 		;;
-	neo-tandem)
-		basic_machine=neo-tandem
-		;;
-	nse-tandem)
-		basic_machine=nse-tandem
-		;;
 	nsr-tandem)
 		basic_machine=nsr-tandem
 		;;
@@ -995,10 +885,9 @@ case $basic_machine in
 		;;
 	power)	basic_machine=power-ibm
 		;;
-	ppc | ppcbe)	basic_machine=powerpc-unknown
+	ppc)	basic_machine=powerpc-unknown
 		;;
-	ppc-* | ppcbe-*)
+	ppc-*)	basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
-		basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
 		;;
 	ppcle | powerpclittle | ppc-le | powerpc-little)
 		basic_machine=powerpcle-unknown
@@ -1023,11 +912,7 @@ case $basic_machine in
 		basic_machine=i586-unknown
 		os=-pw32
 		;;
-	rdos | rdos64)
+	rdos)
-		basic_machine=x86_64-pc
-		os=-rdos
-		;;
-	rdos32)
 		basic_machine=i386-pc
 		os=-rdos
 		;;
@@ -1096,9 +981,6 @@ case $basic_machine in
 		basic_machine=i860-stratus
 		os=-sysv4
 		;;
-	strongarm-* | thumb-*)
-		basic_machine=arm-`echo $basic_machine | sed 's/^[^-]*-//'`
-		;;
 	sun2)
 		basic_machine=m68000-sun
 		;;
@@ -1155,8 +1037,20 @@ case $basic_machine in
 		basic_machine=t90-cray
 		os=-unicos
 		;;
+	tic54x | c54x*)
+		basic_machine=tic54x-unknown
+		os=-coff
+		;;
+	tic55x | c55x*)
+		basic_machine=tic55x-unknown
+		os=-coff
+		;;
+	tic6x | c6x*)
+		basic_machine=tic6x-unknown
+		os=-coff
+		;;
 	tile*)
-		basic_machine=$basic_machine-unknown
+		basic_machine=tile-unknown
 		os=-linux-gnu
 		;;
 	tx39)
@@ -1226,9 +1120,6 @@ case $basic_machine in
 	xps | xps100)
 		basic_machine=xps100-honeywell
 		;;
-	xscale-* | xscalee[bl]-*)
-		basic_machine=`echo $basic_machine | sed 's/^xscale/arm/'`
-		;;
 	ymp)
 		basic_machine=ymp-cray
 		os=-unicos
@@ -1237,10 +1128,6 @@ case $basic_machine in
 		basic_machine=z8k-unknown
 		os=-sim
 		;;
-	z80-*-coff)
-		basic_machine=z80-unknown
-		os=-sim
-		;;
 	none)
 		basic_machine=none-none
 		os=-none
@@ -1279,7 +1166,7 @@ case $basic_machine in
 	we32k)
 		basic_machine=we32k-att
 		;;
-	sh[1234] | sh[24]a | sh[24]aeb | sh[34]eb | sh[1234]le | sh[23]ele)
+	sh[1234] | sh[24]a | sh[34]eb | sh[1234]le | sh[23]ele)
 		basic_machine=sh-unknown
 		;;
 	sparc | sparcv8 | sparcv9 | sparcv9b | sparcv9v)
@@ -1326,12 +1213,9 @@ esac
 if [ x"$os" != x"" ]
 then
 case $os in
-	# First match some system type aliases
+        # First match some system type aliases
-	# that might get confused with valid system types.
+        # that might get confused with valid system types.
 	# -solaris* is a basic system type, with this one exception.
-	-auroraux)
-		os=-auroraux
-		;;
 	-solaris1 | -solaris1.*)
 		os=`echo $os | sed -e 's|solaris1|sunos4|'`
 		;;
@@ -1352,23 +1236,21 @@ case $os in
 	# Each alternative MUST END IN A *, to match a version number.
 	# -sysv* is not here because it comes later, after sysvr4.
 	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
-	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\
+	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -sunos | -sunos[34]*\
-	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \
+	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -solaris* | -sym* \
-	      | -sym* | -kopensolaris* | -plan9* \
 	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
-	      | -aos* | -aros* \
+	      | -aos* \
 	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
 	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
 	      | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \
-	      | -bitrig* | -openbsd* | -solidbsd* \
+	      | -openbsd* | -solidbsd* \
 	      | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
 	      | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
 	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
 	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
-	      | -chorusos* | -chorusrdb* | -cegcc* \
+	      | -chorusos* | -chorusrdb* \
-	      | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
-	      | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
+	      | -mingw32* | -linux-gnu* | -linux-newlib* | -linux-uclibc* \
-	      | -linux-newlib* | -linux-musl* | -linux-uclibc* \
 	      | -uxpv* | -beos* | -mpeix* | -udk* \
 	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
 	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
@@ -1376,7 +1258,7 @@ case $os in
 	      | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
 	      | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
 	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
-	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es*)
+	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops*)
 	# Remember, each alternative MUST END IN *, to match a version number.
 		;;
 	-qnx*)
@@ -1415,7 +1297,7 @@ case $os in
 	-opened*)
 		os=-openedition
 		;;
-	-os400*)
+        -os400*)
 		os=-os400
 		;;
 	-wince*)
@@ -1464,7 +1346,7 @@ case $os in
 	-sinix*)
 		os=-sysv4
 		;;
-	-tpf*)
+        -tpf*)
 		os=-tpf
 		;;
 	-triton*)
@@ -1500,14 +1382,12 @@ case $os in
 	-aros*)
 		os=-aros
 		;;
+	-kaos*)
+		os=-kaos
+		;;
 	-zvmoe)
 		os=-zvmoe
 		;;
-	-dicos*)
-		os=-dicos
-		;;
-	-nacl*)
-		;;
 	-none)
 		;;
 	*)
@@ -1530,10 +1410,10 @@ else
 # system, and we'll never get to this point.
 
 case $basic_machine in
-	score-*)
+        score-*)
 		os=-elf
 		;;
-	spu-*)
+        spu-*)
 		os=-elf
 		;;
 	*-acorn)
@@ -1545,23 +1425,8 @@ case $basic_machine in
 	arm*-semi)
 		os=-aout
 		;;
-	c4x-* | tic4x-*)
+        c4x-* | tic4x-*)
-		os=-coff
+        	os=-coff
-		;;
-	c8051-*)
-		os=-elf
-		;;
-	hexagon-*)
-		os=-elf
-		;;
-	tic54x-*)
-		os=-coff
-		;;
-	tic55x-*)
-		os=-coff
-		;;
-	tic6x-*)
-		os=-coff
 		;;
 	# This must come before the *-dec entry.
 	pdp10-*)
@@ -1581,11 +1446,14 @@ case $basic_machine in
 		;;
 	m68000-sun)
 		os=-sunos3
+		# This also exists in the configure program, but was not the
+		# default.
+		# os=-sunos4
 		;;
 	m68*-cisco)
 		os=-aout
 		;;
-	mep-*)
+        mep-*)
 		os=-elf
 		;;
 	mips*-cisco)
@@ -1594,9 +1462,6 @@ case $basic_machine in
 	mips*-*)
 		os=-elf
 		;;
-	or1k-*)
-		os=-elf
-		;;
 	or32-*)
 		os=-coff
 		;;
@@ -1615,7 +1480,7 @@ case $basic_machine in
 	*-ibm)
 		os=-aix
 		;;
-	*-knuth)
+    	*-knuth)
 		os=-mmixware
 		;;
 	*-wec)
@@ -1720,7 +1585,7 @@ case $basic_machine in
 			-sunos*)
 				vendor=sun
 				;;
-			-cnk*|-aix*)
+			-aix*)
 				vendor=ibm
 				;;
 			-beos*)

conf/Makefile.in

@@ -1,40 +0,0 @@
-#
-# 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-
-srcdir = @srcdir@
-top_srcdir = @top_srcdir@
-top_builddir = @top_builddir@
-
-CONFSRC=example.conf
-CONFDEST=lvm.conf
-
-PROFILE_TEMPLATES=command_profile_template.profile metadata_profile_template.profile
-PROFILES=$(PROFILE_TEMPLATES) $(srcdir)/thin-generic.profile $(srcdir)/thin-performance.profile
-
-include $(top_builddir)/make.tmpl
-
-install_conf: $(CONFSRC)
-	@if [ ! -e $(confdir)/$(CONFDEST) ]; then \
-		echo "$(INSTALL_WDATA) -D $< $(confdir)/$(CONFDEST)"; \
-		$(INSTALL_WDATA) -D $< $(confdir)/$(CONFDEST); \
-	fi
-
-install_profiles: $(PROFILES)
-	$(INSTALL_DIR) $(DESTDIR)$(DEFAULT_PROFILE_DIR)
-	$(INSTALL_DATA) $(PROFILES) $(DESTDIR)$(DEFAULT_PROFILE_DIR)/
-
-install_lvm2: install_conf install_profiles
-
-install: install_lvm2
-
-DISTCLEAN_TARGETS += $(CONFSRC) $(PROFILE_TEMPLATES)

conf/command_profile_template.profile.in

@@ -1,48 +0,0 @@
-# This is a command profile template for the LVM2 system.
-#
-# It contains all configuration settings that are customizable by command
-# profiles. To create a new command profile, select the settings you want
-# to customize and add them in a new file named <profile_name>.profile.
-# Then install the new profile in a directory as defined by config/profile_dir
-# setting found in @DEFAULT_SYS_DIR@/lvm.conf file.
-#
-# Command profiles can be referenced by using the --commandprofile option then.
-#
-# Refer to 'man lvm.conf' for further information about profiles and
-# general configuration file layout.
-#
-global {
-	units="h"
-	si_unit_consistency=1
-	suffix=1
-	lvdisplay_shows_full_device_path=0
-}
-report {
-	aligned=1
-	buffered=1
-	headings=1
-	separator=" "
-	list_item_separator=","
-	prefixes=0
-	quoted=1
-	colums_as_rows=0
-	binary_values_as_numeric=0
-	devtypes_sort="devtype_name"
-	devtypes_cols="devtype_name,devtype_max_partitions,devtype_description"
-	devtypes_cols_verbose="devtype_name,devtype_max_partitions,devtype_description"
-	lvs_sort="vg_name,lv_name"
-	lvs_cols="lv_name,vg_name,lv_attr,lv_size,pool_lv,origin,data_percent,metadata_percent,move_pv,mirror_log,copy_percent,convert_lv"
-	lvs_cols_verbose="lv_name,vg_name,seg_count,lv_attr,lv_size,lv_major,lv_minor,lv_kernel_major,lv_kernel_minor,pool_lv,origin,data_percent,metadata_percent,move_pv,copy_percent,mirror_log,convert_lv,lv_uuid,lv_profile"
-	vgs_sort="vg_name"
-	vgs_cols="vg_name,pv_count,lv_count,snap_count,vg_attr,vg_size,vg_free"
-	vgs_cols_verbose="vg_name,vg_attr,vg_extent_size,pv_count,lv_count,snap_count,vg_size,vg_free,vg_uuid,vg_profile"
-	pvs_sort="pv_name"
-	pvs_cols="pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free"
-	pvs_cols_verbose="pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free,dev_size,pv_uuid"
-	segs_sort="vg_name,lv_name,seg_start"
-	segs_cols="lv_name,vg_name,lv_attr,stripes,segtype,seg_size"
-	segs_cols_verbose="lv_name,vg_name,lv_attr,seg_start,seg_size,stripes,segtype,stripesize,chunksize"
-	pvsegs_sort="pv_name,pvseg_start"
-	pvsegs_cols="pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free,pvseg_start,pvseg_size"
-	pvsegs_cols_verbose="pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free,pvseg_start,pvseg_size,lv_name,seg_start_pe,segtype,seg_pe_ranges"
-}

conf/metadata_profile_template.profile.in

@@ -1,24 +0,0 @@
-# This is a metadata profile template for the LVM2 system.
-#
-# It contains all configuration settings that are customizable by metadata
-# profiles. To create a new metadata profile, select the settings you want
-# to customize and add them in a new file named <profile_name>.profile.
-# Then install the new profile in a directory as defined by config/profile_dir
-# setting found in @DEFAULT_SYS_DIR@/lvm.conf file.
-#
-# Metadata profiles can be referenced by using the --metadataprofile LVM2
-# command line option.
-#
-# Refer to 'man lvm.conf' for further information about profiles and
-# general configuration file layout.
-#
-allocation {
-	thin_pool_zero=1
-	thin_pool_discards="passdown"
-	thin_pool_chunk_size_policy="generic"
-#	thin_pool_chunk_size=64
-}
-activation {
-	thin_pool_autoextend_threshold=100
-	thin_pool_autoextend_percent=20
-}

conf/thin-generic.profile

@@ -1,4 +0,0 @@
-allocation {
-	thin_pool_chunk_size_policy = "generic"
-	thin_pool_zero = 1
-}

conf/thin-performance.profile

@@ -1,4 +0,0 @@
-allocation {
-	thin_pool_chunk_size_policy = "performance"
-	thin_pool_zero = 0
-}

daemons/Makefile.in

@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2004-2011 Red Hat, Inc. All rights reserved.
+# Copyright (C) 2004 Red Hat, Inc. All rights reserved.
 #
 # This file is part of LVM2.
 #
@@ -13,35 +13,20 @@
 
 srcdir = @srcdir@
 top_srcdir = @top_srcdir@
-top_builddir = @top_builddir@
+VPATH = @srcdir@
 
-.PHONY: dmeventd clvmd cmirrord lvmetad
+.PHONY: dmeventd clvmd
 
 ifneq ("@CLVMD@", "none")
-  SUBDIRS += clvmd
+  SUBDIRS = clvmd
 endif
 
-ifeq ("@BUILD_CMIRRORD@", "yes")
+ifeq ("@DMEVENTD@", "yes")
-  SUBDIRS += cmirrord
-endif
-
-ifeq ("@BUILD_DMEVENTD@", "yes")
   SUBDIRS += dmeventd
-ifneq ("$(CFLOW_CMD)", "")
-daemons.cflow: dmeventd.cflow
-endif
 endif
 
-ifeq ("@BUILD_LVMETAD@", "yes")
+include $(top_srcdir)/make.tmpl
-  SUBDIRS += lvmetad
-endif
 
-ifeq ($(MAKECMDGOALS),distclean)
+ifeq ("@DMEVENTD@", "yes")
-  SUBDIRS = clvmd cmirrord dmeventd lvmetad
-endif
-
-include $(top_builddir)/make.tmpl
-
-ifeq ("@BUILD_DMEVENTD@", "yes")
 device-mapper: dmeventd.device-mapper
 endif

daemons/clvmd/Makefile.in

@@ -13,22 +13,7 @@
 
 srcdir = @srcdir@
 top_srcdir = @top_srcdir@
-top_builddir = @top_builddir@
+VPATH = @srcdir@
-
-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  \
@@ -36,72 +21,78 @@ SOURCES = \
 	lvm-functions.c  \
 	refresh_clvmd.c
 
+ifeq ("@CLVMD@", "gulm")
+	GULM = yes
+endif
+
+ifeq ("@CLVMD@", "cman")
+	CMAN = yes
+endif
+
+ifeq ("@CLVMD@", "openais")
+	OPENAIS = yes
+	GULM = no
+	CMAN = no
+endif
+
+ifeq ("@CLVMD@", "all")
+	GULM = yes
+	CMAN = yes
+	OPENAIS = no
+endif
+
 ifeq ("@DEBUG@", "yes")
 	DEFS += -DDEBUG
 endif
 
-ifneq (,$(findstring cman,, "@CLVMD@,"))
+ifeq ("$(GULM)", "yes")
+	SOURCES += clvmd-gulm.c tcp-comms.c
+	LMLIBS += -lccs -lgulm
+	DEFS += -DUSE_GULM
+endif
+
+ifeq ("$(CMAN)", "yes")
 	SOURCES += clvmd-cman.c
-	LMLIBS += $(CMAN_LIBS) $(CONFDB_LIBS) $(DLM_LIBS)
+	LMLIBS += -ldlm -lcman
-	CFLAGS += $(CMAN_CFLAGS) $(CONFDB_CFLAGS) $(DLM_CFLAGS)
 	DEFS += -DUSE_CMAN
 endif
 
-ifneq (,$(findstring openais,, "@CLVMD@,"))
+ifeq ("$(OPENAIS)", "yes")
 	SOURCES += clvmd-openais.c
-	LMLIBS += $(CONFDB_LIBS) $(CPG_LIBS) $(SALCK_LIBS)
+	LMLIBS += -lSaLck -lcpg
-	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
 
-LVMLIBS = $(LVMINTERNAL_LIBS)
+LVMLIBS = -llvm -lpthread
 
 ifeq ("@DMEVENTD@", "yes")
 	LVMLIBS += -ldevmapper-event
 endif
  
-include $(top_builddir)/make.tmpl
-
 LVMLIBS += -ldevmapper
-LIBS += $(PTHREAD_LIBS)
 
-CFLAGS += -fno-strict-aliasing $(EXTRA_EXEC_CFLAGS)
+DEFS += -D_REENTRANT
-LDFLAGS += $(EXTRA_EXEC_LDFLAGS)
+CFLAGS += -fno-strict-aliasing
+
+include $(top_srcdir)/make.tmpl
 
 INSTALL_TARGETS = \
 	install_clvmd
 
-clvmd: $(OBJECTS) $(top_builddir)/lib/liblvm-internal.a
+clvmd: $(OBJECTS) $(top_srcdir)/lib/liblvm.a
-	$(CC) $(CFLAGS) $(LDFLAGS) -o clvmd $(OBJECTS) \
+	$(CC) -o clvmd $(OBJECTS) $(CFLAGS) $(LDFLAGS) \
 		$(LVMLIBS) $(LMLIBS) $(LIBS)
 
 .PHONY: install_clvmd
 
 install_clvmd: $(TARGETS)
-	$(INSTALL_PROGRAM) -D clvmd $(usrsbindir)/clvmd
+	$(INSTALL) -D $(OWNER) $(GROUP) -m 555 $(STRIP) clvmd \
+		$(usrsbindir)/clvmd
 
 install: $(INSTALL_TARGETS)
 
 install_cluster: $(INSTALL_TARGETS)
+

daemons/clvmd/clvm.h

@@ -22,40 +22,37 @@
 #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.
+	uint32_t arglen;	/* Length of argument below. 
-				   If >1500 then it will be passed
+				   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
+				   If this is empty then the command is 
-				   forwarded to all cluster nodes unless
+				   forwarded to all cluster nodes unless 
-				   FLAG_LOCAL or FLAG_REMOTE is also set. */
+				   FLAG_LOCAL is also set. */
-	char args[1];		/* Arguments for the command follow the
+	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_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_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_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 */
+/* Name of the local socket to communicate between libclvm and clvmd */
-static const char CLVMD_SOCKNAME[]= DEFAULT_RUN_DIR "/clvmd.sock";
+//static const char CLVMD_SOCKNAME[]="/var/run/clvmd";
+static const char CLVMD_SOCKNAME[] = "\0clvmd";
 
 /* 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
+#define CLVMD_CMD_GOAWAY   3	/* Die if received this - we are running 
 				   an incompatible version */
 #define CLVMD_CMD_TEST     4	/* Just for mucking about */
 
@@ -65,19 +62,10 @@ static const char CLVMD_SOCKNAME[]= DEFAULT_RUN_DIR "/clvmd.sock";
 /* 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.*/
-#define NODE_ALL	"*"
-#define NODE_LOCAL	"."
-#define NODE_REMOTE	"^"
-
 #endif

daemons/clvmd/clvmd-cman.c

@@ -17,19 +17,38 @@
  * CMAN communication layer for clvmd.
  */
 
-#include "clvmd-common.h"
+#define _GNU_SOURCE
+#define _FILE_OFFSET_BITS 64
 
+#include <configure.h>
 #include <pthread.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/socket.h>
+#include <sys/uio.h>
+#include <sys/un.h>
+#include <sys/time.h>
+#include <sys/ioctl.h>
+#include <sys/utsname.h>
+#include <syslog.h>
+#include <netinet/in.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <signal.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <errno.h>
+#include <libdevmapper.h>
+#include <libdlm.h>
 
 #include "clvmd-comms.h"
 #include "clvm.h"
+#include "lvm-logging.h"
 #include "clvmd.h"
 #include "lvm-functions.h"
 
-#include <libdlm.h>
-
-#include <syslog.h>
-
 #define LOCKSPACE_NAME "clvmd"
 
 struct clvmd_node
@@ -89,17 +108,11 @@ static int _init_cluster(void)
 	DEBUGLOG("CMAN initialisation complete\n");
 
 	/* Create a lockspace for LV & VG locks to live in */
-	lockspace = dlm_open_lockspace(LOCKSPACE_NAME);
+	lockspace = dlm_create_lockspace(LOCKSPACE_NAME, 0600);
 	if (!lockspace) {
-		lockspace = dlm_create_lockspace(LOCKSPACE_NAME, 0600);
+		syslog(LOG_ERR, "Unable to create lockspace for CLVM: %m");
-		if (!lockspace) {
+		return -1;
-			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;
@@ -110,12 +123,12 @@ static void _cluster_init_completed(void)
 	clvmd_cluster_init_completed();
 }
 
-static int _get_main_cluster_fd(void)
+static int _get_main_cluster_fd()
 {
 	return cman_get_fd(c_handle);
 }
 
-static int _get_num_nodes(void)
+static int _get_num_nodes()
 {
 	int i;
 	int nnodes = 0;
@@ -243,8 +256,9 @@ static void _add_up_node(const char *csid)
 	DEBUGLOG("Added new node %d to updown list\n", nodeid);
 }
 
-static void _cluster_closedown(void)
+static void _cluster_closedown()
 {
+	unlock_all();
 	dlm_release_lockspace(LOCKSPACE_NAME, lockspace, 1);
 	cman_finish(c_handle);
 }
@@ -282,7 +296,7 @@ static void count_clvmds_running(void)
 }
 
 /* Get a list of active cluster members */
-static void get_members(void)
+static void get_members()
 {
 	int retnodes;
 	int status;
@@ -380,7 +394,7 @@ static int nodeid_from_csid(const char *csid)
 	return nodeid;
 }
 
-static int _is_quorate(void)
+static int _is_quorate()
 {
 	return cman_is_quorate(c_handle);
 }
@@ -478,7 +492,6 @@ static int _get_cluster_name(char *buf, int buflen)
 }
 
 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,

daemons/clvmd/clvmd-command.c

@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2002-2004 Sistina Software, Inc. All rights reserved.
- * Copyright (C) 2004-2011 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004 Red Hat, Inc. All rights reserved.
  *
  * This file is part of LVM2.
  *
@@ -50,19 +50,36 @@
 
 */
 
-#include "clvmd-common.h"
+#define _GNU_SOURCE
+#define _FILE_OFFSET_BITS 64
+
+#include <configure.h>
+#include <pthread.h>
+#include <sys/types.h>
+#include <sys/utsname.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <fcntl.h>
+#include <string.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <errno.h>
+#include <libdevmapper.h>
+#include <libdlm.h>
+
+#include "locking.h"
+#include "lvm-logging.h"
+#include "lvm-functions.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 debug_t debug;
 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 */
@@ -73,7 +90,6 @@ int do_command(struct local_client *client, struct clvm_header *msg, int msglen,
 	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;
@@ -93,61 +109,47 @@ int do_command(struct local_client *client, struct clvm_header *msg, int msglen,
 			*buf = new_buf;
 		}
 		if (*buf) {
-			if (uname(&nodeinfo))
+			uname(&nodeinfo);
-				memset(&nodeinfo, 0, sizeof(nodeinfo));
+			*retlen = 1 + snprintf(*buf, buflen,
-
+					       "TEST from %s: %s v%s",
-			*retlen = 1 + dm_snprintf(*buf, buflen,
+					       nodeinfo.nodename, args,
-						  "TEST from %s: %s v%s",
+					       nodeinfo.release);
-						  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 */
 		status = do_check_lvm1(lockname);
-		do_lock_vg(lock_cmd, lock_flags, lockname);
+		/* P_#global causes a full cache refresh */
+		if (!strcmp(lockname, "P_" VG_GLOBAL))
+			do_refresh_cache();
+		else
+			drop_metadata(lockname + 2);
+
 		break;
 
 	case CLVMD_CMD_LOCK_LV:
 		/* This is the biggie */
-		lock_cmd = args[0];
+		lock_cmd = args[0] & 0x3F;
 		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",
+			*retlen =
-						  get_last_lvm_error());
+			    1 + 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]);
+		debug = args[0];
-		break;
-
-	case CLVMD_CMD_RESTART:
-		status = restart_clvmd();
 		break;
 
 	case CLVMD_CMD_GET_CLUSTERNAME:
@@ -157,11 +159,7 @@ int do_command(struct local_client *client, struct clvm_header *msg, int msglen,
 		break;
 
 	case CLVMD_CMD_VG_BACKUP:
-		/*
+		lvm_do_backup(&args[2]);
-		 * Do not run backup on local node, caller should do that.
-		 */
-		if (!client)
-			lvm_do_backup(&args[2]);
 		break;
 
 	default:
@@ -171,63 +169,69 @@ int do_command(struct local_client *client, struct clvm_header *msg, int msglen,
 
 	/* Check the status of the command and return the error text */
 	if (status) {
-		*retlen = 1 + ((*buf) ? dm_snprintf(*buf, buflen, "%s",
+		*retlen = 1 + snprintf(*buf, buflen, "%s", strerror(status));
-						    strerror(status)) : -1);
 	}
 
 	return status;
+
 }
 
 static int lock_vg(struct local_client *client)
 {
-	struct dm_hash_table *lock_hash;
+    struct dm_hash_table *lock_hash;
-	struct clvm_header *header =
+    struct clvm_header *header =
-		(struct clvm_header *) client->bits.localsock.cmd;
+	(struct clvm_header *) client->bits.localsock.cmd;
-	unsigned char lock_cmd;
+    unsigned char lock_cmd;
-	int lock_mode;
+    unsigned char lock_flags;
-	char *args = header->node + strlen(header->node) + 1;
+    char *args = header->node + strlen(header->node) + 1;
-	int lkid;
+    int lkid;
-	int status;
+    int status = 0;
-	char *lockname;
+    char *lockname;
 
-	/*
+    /* Keep a track of VG locks in our own hash table. In current
-	 * Keep a track of VG locks in our own hash table. In current
+       practice there should only ever be more than two VGs locked
-	 * practice there should only ever be more than two VGs locked
+       if a user tries to merge lots of them at once */
-	 * if a user tries to merge lots of them at once
+    if (client->bits.localsock.private) {
-	 */
+	lock_hash = (struct dm_hash_table *)client->bits.localsock.private;
-	if (!client->bits.localsock.private) {
+    }
-		if (!(lock_hash = dm_hash_create(3)))
+    else {
-			return ENOMEM;
+	lock_hash = dm_hash_create(3);
-		client->bits.localsock.private = (void *) lock_hash;
+	if (!lock_hash)
-	} else
+	    return ENOMEM;
-		lock_hash = (struct dm_hash_table *) client->bits.localsock.private;
+	client->bits.localsock.private = (void *)lock_hash;
+    }
 
-	lock_cmd = args[0] & (LCK_NONBLOCK | LCK_HOLD | LCK_SCOPE_MASK | LCK_TYPE_MASK);
+    lock_cmd = args[0] & 0x3F;
-	lock_mode = ((int) lock_cmd & LCK_TYPE_MASK);
+    lock_flags = args[1];
-	/* lock_flags = args[1]; */
+    lockname = &args[2];
-	lockname = &args[2];
+    DEBUGLOG("doing PRE command LOCK_VG '%s' at %x (client=%p)\n", lockname, lock_cmd, client);
-	DEBUGLOG("doing PRE command LOCK_VG '%s' at %x (client=%p)\n", lockname, lock_cmd, client);
 
-	if (lock_mode == LCK_UNLOCK) {
+    if (lock_cmd == LCK_UNLOCK) {
-		if (!(lkid = (int) (long) dm_hash_lookup(lock_hash, lockname)))
-			return EINVAL;
 
-		if ((status = sync_unlock(lockname, lkid)))
+	lkid = (int)(long)dm_hash_lookup(lock_hash, lockname);
-			status = errno;
+	if (lkid == 0)
-		else
+	    return EINVAL;
-			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 = sync_unlock(lockname, lkid);
-			status = errno;
+	if (status)
-		else if (!dm_hash_insert(lock_hash, lockname, (void *) (long) lkid))
+	    status = errno;
-			return ENOMEM;
+	else
+	    dm_hash_remove(lock_hash, lockname);
+    }
+    else {
+	/* Read locks need to be PR; other modes get passed through */
+	if ((lock_cmd & LCK_TYPE_MASK) == LCK_READ) {
+	    lock_cmd &= ~LCK_TYPE_MASK;
+	    lock_cmd |= LCK_PREAD;
 	}
+	status = sync_lock(lockname, (int)lock_cmd, (lock_flags & LCK_NONBLOCK) ? LKF_NOQUEUE : 0, &lkid);
+	if (status)
+	    status = errno;
+	else
+	    dm_hash_insert(lock_hash, lockname, (void *)(long)lkid);
+    }
 
-	return status;
+    return status;
 }
 
 
@@ -241,13 +245,13 @@ int do_pre_command(struct local_client *client)
 	unsigned char lock_cmd;
 	unsigned char lock_flags;
 	char *args = header->node + strlen(header->node) + 1;
-	int lockid = 0;
+	int lockid;
 	int status = 0;
 	char *lockname;
 
 	switch (header->cmd) {
 	case CLVMD_CMD_TEST:
-		status = sync_lock("CLVMD_TEST", LCK_EXCL, 0, &lockid);
+		status = sync_lock("CLVMD_TEST", LKM_EXMODE, 0, &lockid);
 		client->bits.localsock.private = (void *)(long)lockid;
 		break;
 
@@ -270,9 +274,6 @@ int do_pre_command(struct local_client *client)
 	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:
@@ -296,8 +297,14 @@ int do_post_command(struct local_client *client)
 
 	switch (header->cmd) {
 	case CLVMD_CMD_TEST:
-		status = sync_unlock("CLVMD_TEST", (int) (long) client->bits.localsock.private);
+		status =
-		client->bits.localsock.private = NULL;
+		    sync_unlock("CLVMD_TEST", (int) (long) client->bits.localsock.private);
+		client->bits.localsock.private = 0;
+		break;
+
+	case CLVMD_CMD_LOCK_VG:
+	case CLVMD_CMD_VG_BACKUP:
+		/* Nothing to do here */
 		break;
 
 	case CLVMD_CMD_LOCK_LV:
@@ -306,10 +313,6 @@ int do_post_command(struct local_client *client)
 		lockname = &args[2];
 		status = post_lock_lv(lock_cmd, lock_flags, lockname);
 		break;
-
-	default:
-		/* Nothing to do here */
-		break;
 	}
 	return status;
 }
@@ -318,97 +321,21 @@ int do_post_command(struct local_client *client)
 /* Called when the client is about to be deleted */
 void cmd_client_cleanup(struct local_client *client)
 {
+    if (client->bits.localsock.private) {
+
 	struct dm_hash_node *v;
-	struct dm_hash_table *lock_hash;
+	struct dm_hash_table *lock_hash =
-	int lkid;
+	    (struct dm_hash_table *)client->bits.localsock.private;
-	char *lockname;
-
-	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);
+		int lkid = (int)(long)dm_hash_get_data(lock_hash, v);
-		lockname = dm_hash_get_key(lock_hash, v);
+		char *lockname = dm_hash_get_key(lock_hash, v);
+
 		DEBUGLOG("cleanup: Unlocking lock %s %x\n", lockname, lkid);
-		(void) sync_unlock(lockname, lkid);
+		sync_unlock(lockname, lkid);
 	}
 
 	dm_hash_destroy(lock_hash);
-	client->bits.localsock.private = NULL;
+	client->bits.localsock.private = 0;
-}
+    }
-
-
-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

@@ -1,32 +0,0 @@
-/*
- * Copyright (C) 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-/*
- * This file must be included first by every clvmd source file.
- */
-#ifndef _LVM_CLVMD_COMMON_H
-#define _LVM_CLVMD_COMMON_H
-
-#include "configure.h"
-
-#define _REENTRANT
-#define _GNU_SOURCE
-#define _FILE_OFFSET_BITS 64
-
-#include "libdevmapper.h"
-#include "lvm-logging.h"
-
-#include <unistd.h>
-
-#endif

daemons/clvmd/clvmd-comms.h

@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2002-2004 Sistina Software, Inc. All rights reserved.
- * Copyright (C) 2004-2011 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004 Red Hat, Inc. All rights reserved.
  *
  * This file is part of LVM2.
  *
@@ -23,7 +23,6 @@
 struct local_client;
 
 struct cluster_ops {
-	const char *name;
 	void (*cluster_init_completed) (void);
 
 	int (*cluster_send_message) (const void *buf, int msglen,
@@ -55,6 +54,13 @@ struct cluster_ops {
 
 };
 
+#ifdef USE_GULM
+#  include "tcp-comms.h"
+struct cluster_ops *init_gulm_cluster(void);
+#define MAX_CSID_LEN 			GULM_MAX_CSID_LEN
+#define MAX_CLUSTER_MEMBER_NAME_LEN	GULM_MAX_CLUSTER_MEMBER_NAME_LEN
+#endif
+
 #ifdef USE_CMAN
 #  include <netinet/in.h>
 #  include "libcman.h"
@@ -71,7 +77,7 @@ struct cluster_ops *init_cman_cluster(void);
 
 #ifdef USE_OPENAIS
 #  include <openais/saAis.h>
-#  include <corosync/totem/totem.h>
+#  include <openais/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
@@ -87,33 +93,5 @@ struct cluster_ops *init_cman_cluster(void);
 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

@@ -1,658 +0,0 @@
-/*
- * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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)
-{
-	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;
-
-	err = cpg_mcast_joined(cpg_handle, CPG_TYPE_AGREED, iov, 2);
-	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-gulm.h

@@ -0,0 +1,13 @@
+
+/* DLM constant that clvmd uses as a generic NONBLOCK lock flag */
+#define LKF_NOQUEUE 1
+
+extern int get_next_node_csid(void **context, char *csid);
+extern void add_down_node(char *csid);
+extern int gulm_fd(void);
+extern int get_ip_address(const char *node, char *addr);
+extern void tcp_remove_client(const char *csid);
+extern int alloc_client(int fd, const char *csid, struct local_client **new_client);
+
+void gulm_add_up_node(const char *csid);
+int gulm_name_from_csid(const char *csid, char *name);

daemons/clvmd/clvmd-openais.c

@@ -1,35 +1,50 @@
-/*
+/******************************************************************************
- * Copyright (C) 2007-2009 Red Hat, Inc. All rights reserved.
+*******************************************************************************
- *
+**
- * This file is part of LVM2.
+**  Copyright (C) 2007 Red Hat, Inc. All rights reserved.
- *
+**
- * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
 
-/*
+/* This provides the interface between clvmd and OpenAIS as the cluster
- * This provides the interface between clvmd and OpenAIS as the cluster
  * and lock manager.
+ *
  */
 
-#include "clvmd-common.h"
+#define _GNU_SOURCE
+#define _FILE_OFFSET_BITS 64
 
+#include <configure.h>
 #include <pthread.h>
+#include <sys/types.h>
+#include <sys/utsname.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/file.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <signal.h>
 #include <fcntl.h>
+#include <string.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <errno.h>
+#include <utmpx.h>
 #include <syslog.h>
+#include <assert.h>
+#include <libdevmapper.h>
 
 #include <openais/saAis.h>
 #include <openais/saLck.h>
-
+#include <openais/cpg.h>
-#include <corosync/corotypes.h>
-#include <corosync/cpg.h>
 
 #include "locking.h"
+#include "lvm-logging.h"
 #include "clvm.h"
 #include "clvmd-comms.h"
 #include "lvm-functions.h"
@@ -38,18 +53,17 @@
 /* Timeout value for several openais calls */
 #define TIMEOUT 10
 
-static void openais_cpg_deliver_callback (cpg_handle_t handle,
+static void cpg_deliver_callback (cpg_handle_t handle,
-				  const struct cpg_name *groupName,
+				  struct cpg_name *groupName,
 				  uint32_t nodeid,
 				  uint32_t pid,
 				  void *msg,
-				  size_t msg_len);
+				  int msg_len);
-static void openais_cpg_confchg_callback(cpg_handle_t handle,
+static void cpg_confchg_callback(cpg_handle_t handle,
-				 const struct cpg_name *groupName,
+				 struct cpg_name *groupName,
-				 const struct cpg_address *member_list, size_t member_list_entries,
+				 struct cpg_address *member_list, int member_list_entries,
-				 const struct cpg_address *left_list, size_t left_list_entries,
+				 struct cpg_address *left_list, int left_list_entries,
-				 const struct cpg_address *joined_list, size_t joined_list_entries);
+				 struct cpg_address *joined_list, int joined_list_entries);
-
 static void _cluster_closedown(void);
 
 /* Hash list of nodes in the cluster */
@@ -71,9 +85,9 @@ static SaLckHandleT lck_handle;
 static struct cpg_name cpg_group_name;
 
 /* Openais callback structs */
-cpg_callbacks_t openais_cpg_callbacks = {
+cpg_callbacks_t cpg_callbacks = {
-	.cpg_deliver_fn =            openais_cpg_deliver_callback,
+	.cpg_deliver_fn =            cpg_deliver_callback,
-	.cpg_confchg_fn =            openais_cpg_confchg_callback,
+	.cpg_confchg_fn =            cpg_confchg_callback,
 };
 
 struct node_info
@@ -181,7 +195,7 @@ static int ais_to_errno(SaAisErrorT err)
 	return -1;
 }
 
-static char *print_openais_csid(const char *csid)
+static char *print_csid(const char *csid)
 {
 	static char buf[128];
 	int id;
@@ -197,11 +211,14 @@ static int add_internal_client(int fd, fd_callback_t callback)
 
 	DEBUGLOG("Add_internal_client, fd = %d\n", fd);
 
-	if (!(client = dm_zalloc(sizeof(*client)))) {
+	client = malloc(sizeof(struct local_client));
+	if (!client)
+	{
 		DEBUGLOG("malloc failed\n");
 		return -1;
 	}
 
+	memset(client, 0, sizeof(struct local_client));
 	client->fd = fd;
 	client->type = CLUSTER_INTERNAL;
 	client->callback = callback;
@@ -213,18 +230,18 @@ static int add_internal_client(int fd, fd_callback_t callback)
 	return 0;
 }
 
-static void openais_cpg_deliver_callback (cpg_handle_t handle,
+static void cpg_deliver_callback (cpg_handle_t handle,
-				  const struct cpg_name *groupName,
+				  struct cpg_name *groupName,
 				  uint32_t nodeid,
 				  uint32_t pid,
 				  void *msg,
-				  size_t msg_len)
+				  int 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",
+	DEBUGLOG("%u got message from nodeid %d for %d. len %d\n",
 		 our_nodeid, nodeid, target_nodeid, msg_len-4);
 
 	if (nodeid != our_nodeid)
@@ -233,17 +250,16 @@ static void openais_cpg_deliver_callback (cpg_handle_t handle,
 					msg_len-OPENAIS_CSID_LEN, (char*)&nodeid);
 }
 
-static void openais_cpg_confchg_callback(cpg_handle_t handle,
+static void cpg_confchg_callback(cpg_handle_t handle,
-				 const struct cpg_name *groupName,
+				 struct cpg_name *groupName,
-				 const struct cpg_address *member_list, size_t member_list_entries,
+				 struct cpg_address *member_list, int member_list_entries,
-				 const struct cpg_address *left_list, size_t left_list_entries,
+				 struct cpg_address *left_list, int left_list_entries,
-				 const struct cpg_address *joined_list, size_t joined_list_entries)
+				 struct cpg_address *joined_list, int joined_list_entries)
 {
 	int i;
 	struct node_info *ninfo;
 
-	DEBUGLOG("confchg callback. %" PRIsize_t " joined, "
+	DEBUGLOG("confchg callback. %d joined, %d left, %d members\n",
-		 "%" PRIsize_t " left, %" PRIsize_t " members\n",
 		 joined_list_entries, left_list_entries, member_list_entries);
 
 	for (i=0; i<joined_list_entries; i++) {
@@ -314,7 +330,7 @@ static int _init_cluster(void)
 	lock_hash = dm_hash_create(10);
 
 	err = cpg_initialize(&cpg_handle,
-			     &openais_cpg_callbacks);
+			     &cpg_callbacks);
 	if (err != SA_AIS_OK) {
 		syslog(LOG_ERR, "Cannot initialise OpenAIS CPG service: %d",
 		       err);
@@ -326,7 +342,7 @@ static int _init_cluster(void)
 					NULL,
 			      &ver);
 	if (err != SA_AIS_OK) {
-		cpg_initialize(&cpg_handle, &openais_cpg_callbacks);
+		cpg_initialize(&cpg_handle, &cpg_callbacks);
 		syslog(LOG_ERR, "Cannot initialise OpenAIS lock service: %d",
 		       err);
 		DEBUGLOG("Cannot initialise OpenAIS lock service: %d\n\n", err);
@@ -365,6 +381,9 @@ static int _init_cluster(void)
 
 static void _cluster_closedown(void)
 {
+	DEBUGLOG("cluster_closedown\n");
+	unlock_all();
+
 	saLckFinalize(lck_handle);
 	cpg_finalize(cpg_handle);
 }
@@ -396,7 +415,7 @@ static int _name_from_csid(const char *csid, char *name)
 	ninfo = dm_hash_lookup_binary(node_hash, csid, OPENAIS_CSID_LEN);
 	if (!ninfo)
 	{
-		sprintf(name, "UNKNOWN %s", print_openais_csid(csid));
+		sprintf(name, "UNKNOWN %s", print_csid(csid));
 		return -1;
 	}
 
@@ -418,7 +437,7 @@ static void _add_up_node(const char *csid)
 	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));
+			 print_csid(csid));
 		return;
 	}
 
@@ -500,11 +519,11 @@ static int _lock_resource(char *resource, int mode, int flags, int *lockid)
 		saLckResourceClose(res_handle);
 		return ais_to_errno(err);
 	}
-
+			
 	/* Wait for it to complete */
 
-	DEBUGLOG("lock_resource returning %d, lock_id=%" PRIx64 "\n",
+	DEBUGLOG("lock_resource returning %d, lock_id=%llx\n", err,
-		 err, lock_id);
+		 lock_id);
 
 	linfo->lock_id = lock_id;
 	linfo->res_handle = res_handle;
@@ -525,7 +544,7 @@ static int _unlock_resource(char *resource, int lockid)
 	if (!linfo)
 		return 0;
 
-	DEBUGLOG("unlock_resource: lockid: %" PRIx64 "\n", linfo->lock_id);
+	DEBUGLOG("unlock_resource: lockid: %llx\n", linfo->lock_id);
 	err = saLckResourceUnlock(linfo->lock_id, SA_TIME_END);
 	if (err != SA_AIS_OK)
 	{
@@ -661,7 +680,6 @@ static int _get_cluster_name(char *buf, int buflen)
 }
 
 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,
@@ -684,6 +702,6 @@ struct cluster_ops *init_openais_cluster(void)
 {
 	if (!_init_cluster())
 		return &_cluster_openais_ops;
-
+	else
-	return NULL;
+		return NULL;
 }

daemons/clvmd/clvmd-singlenode.c

@@ -1,382 +0,0 @@
-/*
- * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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:
-	pthread_cond_broadcast(&_lock_cond); /* to wakeup waiters */
-
-	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_mutex_unlock(&_lock_mutex);
-	DEBUGLOG("Locked resource %s, lockid=%d, mode=%s\n",
-		 resource, lck->lockid, _get_mode(lck->mode));
-
-	return 0;
-bad:
-	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

@@ -20,6 +20,9 @@
 #define CLVMD_MINOR_VERSION 2
 #define CLVMD_PATCH_VERSION 1
 
+/* Name of the cluster LVM admin lock */
+#define ADMIN_LOCK_NAME "CLVMD_ADMIN"
+
 /* Default time (in seconds) we will wait for all remote commands to execute
    before declaring them dead */
 #define DEFAULT_CMD_TIMEOUT 60
@@ -53,12 +56,13 @@ struct localsock_bits {
 	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;
+	enum { PRE_COMMAND, POST_COMMAND, QUIT } state;
 	pthread_mutex_t mutex;	/* Main thread and worker synchronisation */
 	pthread_cond_t cond;
+
+	pthread_mutex_t reply_mutex;	/* Protect reply structure */
 };
 
 /* Entries for PIPE clients */
@@ -94,7 +98,7 @@ struct local_client {
 	} bits;
 };
 
-#define DEBUGLOG(fmt, args...) debuglog(fmt, ## args)
+#define DEBUGLOG(fmt, args...) debuglog(fmt, ## args);
 
 #ifndef max
 #define max(a,b) ((a)>(b)?(a):(b))
@@ -111,15 +115,11 @@ 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,
+extern void process_message(struct local_client *client, const 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);
 

daemons/clvmd/lvm-functions.h

@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2002-2004 Sistina Software, Inc. All rights reserved.
- * Copyright (C) 2004-2010 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004 Red Hat, Inc. All rights reserved.
  *
  * This file is part of LVM2.
  *
@@ -22,20 +22,17 @@ 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_check_lvm1(const char *vgname);
 extern int do_refresh_cache(void);
-extern int init_clvm(struct dm_hash_table *excl_uuid);
+extern int init_lvm(int using_gulm);
-extern void destroy_lvm(void);
 extern void init_lvhash(void);
-extern void destroy_lvhash(void);
 extern void lvm_do_backup(const char *vgname);
+extern int hold_unlock(char *resource);
+extern int hold_lock(char *resource, int mode, int flags);
+extern void unlock_all(void);
 extern char *get_last_lvm_error(void);
-extern void do_lock_vg(unsigned char command, unsigned char lock_flags,
+extern void drop_metadata(const char *vgname);
-		      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

@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2002-2004 Sistina Software, Inc. All rights reserved.
- * Copyright (C) 2004-2010 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
  *
  * This file is part of LVM2.
  *
@@ -13,20 +13,27 @@
  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
-/* FIXME Remove duplicated functions from this file. */
-
 /*
- * Send a command to a running clvmd from the command-line
+ * Tell all clvmds in a cluster to refresh their toolcontext
+ *
  */
 
-#include "clvmd-common.h"
+#define _GNU_SOURCE
-
+#define _FILE_OFFSET_BITS 64
-#include "clvm.h"
-#include "refresh_clvmd.h"
 
+#include <configure.h>
 #include <stddef.h>
 #include <sys/socket.h>
 #include <sys/un.h>
+#include <errno.h>
+#include <unistd.h>
+#include <libdevmapper.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <limits.h>
+
+#include "clvm.h"
+#include "refresh_clvmd.h"
 
 typedef struct lvm_response {
 	char node[255];
@@ -47,12 +54,7 @@ static int _clvmd_sock = -1;
 static int _open_local_sock(void)
 {
 	int local_socket;
-	struct sockaddr_un sockaddr = { .sun_family = AF_UNIX };
+	struct sockaddr_un sockaddr;
-
-	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) {
@@ -60,6 +62,11 @@ static int _open_local_sock(void)
 		return -1;
 	}
 
+	memset(&sockaddr, 0, sizeof(sockaddr));
+	memcpy(sockaddr.sun_path, CLVMD_SOCKNAME, sizeof(CLVMD_SOCKNAME));
+
+	sockaddr.sun_family = AF_UNIX;
+
 	if (connect(local_socket,(struct sockaddr *) &sockaddr,
 		    sizeof(sockaddr))) {
 		int saved_errno = errno;
@@ -77,12 +84,12 @@ static int _open_local_sock(void)
 }
 
 /* Send a request and return the status */
-static int _send_request(const char *inbuf, int inlen, char **retbuf, int no_response)
+static int _send_request(const char *inbuf, int inlen, char **retbuf)
 {
 	char outbuf[PIPE_BUF];
 	struct clvm_header *outheader = (struct clvm_header *) outbuf;
 	int len;
-	unsigned off;
+	int off;
 	int buflen;
 	int err;
 
@@ -94,8 +101,6 @@ static int _send_request(const char *inbuf, int inlen, char **retbuf, int no_res
 		fprintf(stderr, "Error writing data to clvmd: %s", strerror(errno));
 		return 0;
 	}
-	if (no_response)
-		return 1;
 
 	/* Get the response */
  reread:
@@ -151,38 +156,36 @@ static int _send_request(const char *inbuf, int inlen, char **retbuf, int no_res
 
 /* 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)
+			  int len)
 {
 	head->cmd = cmd;
 	head->status = 0;
 	head->flags = 0;
-	head->xid = 0;
 	head->clientid = 0;
-	if (len)
+	head->arglen = 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';
-	}
 
-	/*
+	if (node) {
-	 * Translate special node names.
+		/*
-	 */
+		 * Allow a couple of special node names:
-	if (!node || !strcmp(node, NODE_ALL))
+		 * "*" for all nodes,
-		head->node[0] = '\0';
+		 * "." for the local node only
-	else if (!strcmp(node, NODE_LOCAL)) {
+		 */
-		head->node[0] = '\0';
+		if (strcmp(node, "*") == 0) {
-		head->flags = CLVMD_FLAG_LOCAL;
+			head->node[0] = '\0';
+		} else if (strcmp(node, ".") == 0) {
+			head->node[0] = '\0';
+			head->flags = CLVMD_FLAG_LOCAL;
+		} else
+			strcpy(head->node, node);
 	} else
-		strcpy(head->node, node);
+		head->node[0] = '\0';
 }
 
 /*
  * 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)
+			   lvm_response_t ** response, int *num)
 {
 	char outbuf[sizeof(struct clvm_header) + len + strlen(node) + 1];
 	char *inptr;
@@ -202,12 +205,11 @@ static int _cluster_request(char cmd, const char *node, void *data, int len,
 		return 0;
 
 	_build_header(head, cmd, node, len);
-	if (len)
+	memcpy(head->node + strlen(head->node) + 1, data, 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);
+			      strlen(head->node) + len, &retbuf);
-	if (!status || no_response)
+	if (!status)
 		goto out;
 
 	/* Count the number of responses we got */
@@ -225,14 +227,16 @@ static int _cluster_request(char cmd, const char *node, void *data, int len,
 	 * With an extra pair of INTs on the front to sanity
 	 * check the pointer when we are given it back to free
 	 */
-	*response = NULL;
+	*response = dm_malloc(sizeof(lvm_response_t) * num_responses +
-	if (!(rarray = dm_malloc(sizeof(lvm_response_t) * num_responses +
+			    sizeof(int) * 2);
-				 sizeof(int) * 2))) {
+	if (!*response) {
 		errno = ENOMEM;
 		status = 0;
 		goto out;
 	}
 
+	rarray = *response;
+
 	/* Unpack the response into an lvm_response_t array */
 	inptr = head->args;
 	i = 0;
@@ -249,9 +253,9 @@ static int _cluster_request(char cmd, const char *node, void *data, int len,
 			int j;
 			for (j = 0; j < i; j++)
 				dm_free(rarray[i].response);
-			dm_free(rarray);
+			free(*response);
 			errno = ENOMEM;
-			status = 0;
+			status = -1;
 			goto out;
 		}
 
@@ -264,7 +268,8 @@ static int _cluster_request(char cmd, const char *node, void *data, int len,
 	*response = rarray;
 
       out:
-	dm_free(retbuf);
+	if (retbuf)
+		dm_free(retbuf);
 
 	return status;
 }
@@ -283,16 +288,16 @@ static int _cluster_free_request(lvm_response_t * response, int num)
 	return 1;
 }
 
-int refresh_clvmd(int all_nodes)
+int refresh_clvmd()
 {
 	int num_responses;
 	char args[1]; // No args really.
-	lvm_response_t *response = NULL;
+	lvm_response_t *response;
 	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);
+	status = _cluster_request(CLVMD_CMD_REFRESH, "*", args, 0, &response, &num_responses);
 
 	/* If any nodes were down then display them and return an error */
 	for (i = 0; i < num_responses; i++) {
@@ -319,42 +324,23 @@ int refresh_clvmd(int all_nodes)
 	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;
+	lvm_response_t *response;
 	int saved_errno;
 	int status;
 	int i;
 
 	args[0] = level;
 	if (clusterwide)
-		nodes = NODE_ALL;
+		nodes = "*";
 	else
-		nodes = NODE_LOCAL;
+		nodes = ".";
 
-	status = _cluster_request(CLVMD_CMD_SET_DEBUG, nodes, args, 1, &response, &num_responses, 0);
+	status = _cluster_request(CLVMD_CMD_SET_DEBUG, nodes, args, 1, &response, &num_responses);
 
 	/* If any nodes were down then display them and return an error */
 	for (i = 0; i < num_responses; i++) {

daemons/clvmd/refresh_clvmd.h

@@ -13,7 +13,6 @@
  */
 
 
-int refresh_clvmd(int all_nodes);
+int refresh_clvmd(void);
-int restart_clvmd(int all_nodes);
 int debug_clvmd(int level, int clusterwide);
 

daemons/clvmd/tcp-comms.c

@@ -0,0 +1,504 @@
+/******************************************************************************
+*******************************************************************************
+**
+**  Copyright (C) Sistina Software, Inc.  2002-2003  All rights reserved.
+**  Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
+**
+*******************************************************************************
+******************************************************************************/
+
+/* This provides the inter-clvmd communications for a system without CMAN.
+   There is a listening TCP socket which accepts new connections in the
+   normal way.
+   It can also make outgoing connnections to the other clvmd nodes.
+*/
+
+#define _GNU_SOURCE
+#define _FILE_OFFSET_BITS 64
+
+#include <configure.h>
+#include <pthread.h>
+#include <sys/types.h>
+#include <sys/utsname.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <fcntl.h>
+#include <string.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <errno.h>
+#include <syslog.h>
+#include <netdb.h>
+#include <assert.h>
+#include <libdevmapper.h>
+
+#include "clvm.h"
+#include "clvmd-comms.h"
+#include "clvmd.h"
+#include "clvmd-gulm.h"
+
+#define DEFAULT_TCP_PORT 21064
+
+static int listen_fd = -1;
+static int tcp_port;
+struct dm_hash_table *sock_hash;
+
+static int get_our_ip_address(char *addr, int *family);
+static int read_from_tcpsock(struct local_client *fd, char *buf, int len, char *csid,
+			     struct local_client **new_client);
+
+/* Called by init_cluster() to open up the listening socket */
+int init_comms(unsigned short port)
+{
+    struct sockaddr_in6 addr;
+
+    sock_hash = dm_hash_create(100);
+    tcp_port = port ? : DEFAULT_TCP_PORT;
+
+    listen_fd = socket(AF_INET6, SOCK_STREAM, 0);
+
+    if (listen_fd < 0)
+    {
+	return -1;
+    }
+    else
+    {
+	int one = 1;
+	setsockopt(listen_fd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(int));
+	setsockopt(listen_fd, SOL_SOCKET, SO_KEEPALIVE, &one, sizeof(int));
+    }
+
+    memset(&addr, 0, sizeof(addr)); // Bind to INADDR_ANY
+    addr.sin6_family = AF_INET6;
+    addr.sin6_port = htons(tcp_port);
+
+    if (bind(listen_fd, (struct sockaddr *)&addr, sizeof(addr)) < 0)
+    {
+	DEBUGLOG("Can't bind to port: %s\n", strerror(errno));
+	syslog(LOG_ERR, "Can't bind to port %d, is clvmd already running ?", tcp_port);
+	close(listen_fd);
+	return -1;
+    }
+
+    listen(listen_fd, 5);
+
+    /* Set Close-on-exec */
+    fcntl(listen_fd, F_SETFD, 1);
+
+    return 0;
+}
+
+void tcp_remove_client(const char *c_csid)
+{
+    struct local_client *client;
+    char csid[GULM_MAX_CSID_LEN];
+    unsigned int i;
+    memcpy(csid, c_csid, sizeof csid);
+    DEBUGLOG("tcp_remove_client\n");
+
+    /* Don't actually close the socket here - that's the
+       job of clvmd.c whch will do the job when it notices the
+       other end has gone. We just need to remove the client(s) from
+       the hash table so we don't try to use it for sending any more */
+    for (i = 0; i < 2; i++)
+    {
+	client = dm_hash_lookup_binary(sock_hash, csid, GULM_MAX_CSID_LEN);
+	if (client)
+	{
+	    dm_hash_remove_binary(sock_hash, csid, GULM_MAX_CSID_LEN);
+	    client->removeme = 1;
+	    close(client->fd);
+	}
+	/* Look for a mangled one too, on the 2nd iteration. */
+	csid[0] ^= 0x80;
+    }
+}
+
+int alloc_client(int fd, const char *c_csid, struct local_client **new_client)
+{
+    struct local_client *client;
+    char csid[GULM_MAX_CSID_LEN];
+    memcpy(csid, c_csid, sizeof csid);
+
+    DEBUGLOG("alloc_client %d csid = %s\n", fd, print_csid(csid));
+
+    /* Create a local_client and return it */
+    client = malloc(sizeof(struct local_client));
+    if (!client)
+    {
+	DEBUGLOG("malloc failed\n");
+	return -1;
+    }
+
+    memset(client, 0, sizeof(struct local_client));
+    client->fd = fd;
+    client->type = CLUSTER_DATA_SOCK;
+    client->callback = read_from_tcpsock;
+    if (new_client)
+	*new_client = client;
+
+    /* Add to our list of node sockets */
+    if (dm_hash_lookup_binary(sock_hash, csid, GULM_MAX_CSID_LEN))
+    {
+	DEBUGLOG("alloc_client mangling CSID for second connection\n");
+	/* This is a duplicate connection but we can't close it because
+	   the other end may already have started sending.
+	   So, we mangle the IP address and keep it, all sending will
+	   go out of the main FD
+	*/
+	csid[0] ^= 0x80;
+	client->bits.net.flags = 1; /* indicate mangled CSID */
+
+        /* If it still exists then kill the connection as we should only
+           ever have one incoming connection from each node */
+        if (dm_hash_lookup_binary(sock_hash, csid, GULM_MAX_CSID_LEN))
+        {
+	    DEBUGLOG("Multiple incoming connections from node\n");
+            syslog(LOG_ERR, " Bogus incoming connection from %d.%d.%d.%d\n", csid[0],csid[1],csid[2],csid[3]);
+
+	    free(client);
+            errno = ECONNREFUSED;
+            return -1;
+        }
+    }
+    dm_hash_insert_binary(sock_hash, csid, GULM_MAX_CSID_LEN, client);
+
+    return 0;
+}
+
+int get_main_gulm_cluster_fd()
+{
+    return listen_fd;
+}
+
+
+/* Read on main comms (listen) socket, accept it */
+int cluster_fd_gulm_callback(struct local_client *fd, char *buf, int len, const char *csid,
+			struct local_client **new_client)
+{
+    int newfd;
+    struct sockaddr_in6 addr;
+    socklen_t addrlen = sizeof(addr);
+    int status;
+    char name[GULM_MAX_CLUSTER_MEMBER_NAME_LEN];
+
+    DEBUGLOG("cluster_fd_callback\n");
+    *new_client = NULL;
+    newfd = accept(listen_fd, (struct sockaddr *)&addr, &addrlen);
+
+    DEBUGLOG("cluster_fd_callback, newfd=%d (errno=%d)\n", newfd, errno);
+    if (!newfd)
+    {
+	syslog(LOG_ERR, "error in accept: %m");
+	errno = EAGAIN;
+	return -1; /* Don't return an error or clvmd will close the listening FD */
+    }
+
+    /* Check that the client is a member of the cluster
+       and reject if not.
+    */
+    if (gulm_name_from_csid((char *)&addr.sin6_addr, name) < 0)
+    {
+	syslog(LOG_ERR, "Got connect from non-cluster node %s\n",
+	       print_csid((char *)&addr.sin6_addr));
+	DEBUGLOG("Got connect from non-cluster node %s\n",
+		 print_csid((char *)&addr.sin6_addr));
+	close(newfd);
+
+	errno = EAGAIN;
+	return -1;
+    }
+
+    status = alloc_client(newfd, (char *)&addr.sin6_addr, new_client);
+    if (status)
+    {
+	DEBUGLOG("cluster_fd_callback, alloc_client failed, status = %d\n", status);
+	close(newfd);
+	/* See above... */
+	errno = EAGAIN;
+	return -1;
+    }
+    DEBUGLOG("cluster_fd_callback, returning %d, %p\n", newfd, *new_client);
+    return newfd;
+}
+
+/* Try to get at least 'len' bytes from the socket */
+static int really_read(int fd, char *buf, int len)
+{
+	int got, offset;
+
+	got = offset = 0;
+
+	do {
+		got = read(fd, buf+offset, len-offset);
+		DEBUGLOG("really_read. got %d bytes\n", got);
+		offset += got;
+	} while (got > 0 && offset < len);
+
+	if (got < 0)
+		return got;
+	else
+		return offset;
+}
+
+
+static int read_from_tcpsock(struct local_client *client, char *buf, int len, char *csid,
+			     struct local_client **new_client)
+{
+    struct sockaddr_in6 addr;
+    socklen_t slen = sizeof(addr);
+    struct clvm_header *header = (struct clvm_header *)buf;
+    int status;
+    uint32_t arglen;
+
+    DEBUGLOG("read_from_tcpsock fd %d\n", client->fd);
+    *new_client = NULL;
+
+    /* Get "csid" */
+    getpeername(client->fd, (struct sockaddr *)&addr, &slen);
+    memcpy(csid, &addr.sin6_addr, GULM_MAX_CSID_LEN);
+
+    /* Read just the header first, then get the rest if there is any.
+     * Stream sockets, sigh.
+     */
+    status = really_read(client->fd, buf, sizeof(struct clvm_header));
+    if (status > 0)
+    {
+	    int status2;
+
+	    arglen = ntohl(header->arglen);
+
+	    /* Get the rest */
+	    if (arglen && arglen < GULM_MAX_CLUSTER_MESSAGE)
+	    {
+		    status2 = really_read(client->fd, buf+status, arglen);
+		    if (status2 > 0)
+			    status += status2;
+		    else
+			    status = status2;
+	    }
+    }
+
+    DEBUGLOG("read_from_tcpsock, status = %d(errno = %d)\n", status, errno);
+
+    /* Remove it from the hash table if there's an error, clvmd will
+       remove the socket from its lists and free the client struct */
+    if (status == 0 ||
+	(status < 0 && errno != EAGAIN && errno != EINTR))
+    {
+	char remcsid[GULM_MAX_CSID_LEN];
+
+	memcpy(remcsid, csid, GULM_MAX_CSID_LEN);
+	close(client->fd);
+
+	/* If the csid was mangled, then make sure we remove the right entry */
+	if (client->bits.net.flags)
+	    remcsid[0] ^= 0x80;
+	dm_hash_remove_binary(sock_hash, remcsid, GULM_MAX_CSID_LEN);
+
+	/* Tell cluster manager layer */
+	add_down_node(remcsid);
+    }
+    else {
+	    gulm_add_up_node(csid);
+	    /* Send it back to clvmd */
+	    process_message(client, buf, status, csid);
+    }
+    return status;
+}
+
+int gulm_connect_csid(const char *csid, struct local_client **newclient)
+{
+    int fd;
+    struct sockaddr_in6 addr;
+    int status;
+    int one = 1;
+
+    DEBUGLOG("Connecting socket\n");
+    fd = socket(PF_INET6, SOCK_STREAM, 0);
+
+    if (fd < 0)
+    {
+	syslog(LOG_ERR, "Unable to create new socket: %m");
+	return -1;
+    }
+
+    addr.sin6_family = AF_INET6;
+    memcpy(&addr.sin6_addr, csid, GULM_MAX_CSID_LEN);
+    addr.sin6_port = htons(tcp_port);
+
+    DEBUGLOG("Connecting socket %d\n", fd);
+    if (connect(fd, (struct sockaddr *)&addr, sizeof(struct sockaddr_in6)) < 0)
+    {
+	/* "Connection refused" is "normal" because clvmd may not yet be running
+	 * on that node.
+	 */
+	if (errno != ECONNREFUSED)
+	{
+	    syslog(LOG_ERR, "Unable to connect to remote node: %m");
+	}
+	DEBUGLOG("Unable to connect to remote node: %s\n", strerror(errno));
+	close(fd);
+	return -1;
+    }
+
+    /* Set Close-on-exec */
+    fcntl(fd, F_SETFD, 1);
+    setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &one, sizeof(int));
+
+    status = alloc_client(fd, csid, newclient);
+    if (status)
+	close(fd);
+    else
+	add_client(*newclient);
+
+    /* If we can connect to it, it must be running a clvmd */
+    gulm_add_up_node(csid);
+    return status;
+}
+
+/* Send a message to a known CSID */
+static int tcp_send_message(void *buf, int msglen, const char *csid, const char *errtext)
+{
+    int status;
+    struct local_client *client;
+    char ourcsid[GULM_MAX_CSID_LEN];
+
+    assert(csid);
+
+    DEBUGLOG("tcp_send_message, csid = %s, msglen = %d\n", print_csid(csid), msglen);
+
+    /* Don't connect to ourself */
+    get_our_gulm_csid(ourcsid);
+    if (memcmp(csid, ourcsid, GULM_MAX_CSID_LEN) == 0)
+	return msglen;
+
+    client = dm_hash_lookup_binary(sock_hash, csid, GULM_MAX_CSID_LEN);
+    if (!client)
+    {
+	status = gulm_connect_csid(csid, &client);
+	if (status)
+	    return -1;
+    }
+    DEBUGLOG("tcp_send_message, fd = %d\n", client->fd);
+
+    return write(client->fd, buf, msglen);
+}
+
+
+int gulm_cluster_send_message(void *buf, int msglen, const char *csid, const char *errtext)
+{
+    int status=0;
+
+    DEBUGLOG("cluster send message, csid = %p, msglen = %d\n", csid, msglen);
+
+    /* If csid is NULL then send to all known (not just connected) nodes */
+    if (!csid)
+    {
+	void *context = NULL;
+	char loop_csid[GULM_MAX_CSID_LEN];
+
+	/* Loop round all gulm-known nodes */
+	while (get_next_node_csid(&context, loop_csid))
+	{
+	    status = tcp_send_message(buf, msglen, loop_csid, errtext);
+	    if (status == 0 ||
+		(status < 0 && (errno == EAGAIN || errno == EINTR)))
+		break;
+	}
+    }
+    else
+    {
+
+	status = tcp_send_message(buf, msglen, csid, errtext);
+    }
+    return status;
+}
+
+/* To get our own IP address we get the locally bound address of the
+   socket that's talking to GULM in the assumption(eek) that it will
+   be on the "right" network in a multi-homed system */
+static int get_our_ip_address(char *addr, int *family)
+{
+	struct utsname info;
+
+	uname(&info);
+	get_ip_address(info.nodename, addr);
+
+	return 0;
+}
+
+/* Public version of above for those that don't care what protocol
+   we're using */
+void get_our_gulm_csid(char *csid)
+{
+    static char our_csid[GULM_MAX_CSID_LEN];
+    static int got_csid = 0;
+
+    if (!got_csid)
+    {
+	int family;
+
+	memset(our_csid, 0, sizeof(our_csid));
+	if (get_our_ip_address(our_csid, &family))
+	{
+	    got_csid = 1;
+	}
+    }
+    memcpy(csid, our_csid, GULM_MAX_CSID_LEN);
+}
+
+static void map_v4_to_v6(struct in_addr *ip4, struct in6_addr *ip6)
+{
+   ip6->s6_addr32[0] = 0;
+   ip6->s6_addr32[1] = 0;
+   ip6->s6_addr32[2] = htonl(0xffff);
+   ip6->s6_addr32[3] = ip4->s_addr;
+}
+
+/* Get someone else's IP address from DNS */
+int get_ip_address(const char *node, char *addr)
+{
+    struct hostent *he;
+
+    memset(addr, 0, GULM_MAX_CSID_LEN);
+
+    // TODO: what do we do about multi-homed hosts ???
+    // CCSs ip_interfaces solved this but some bugger removed it.
+
+    /* Try IPv6 first. The man page for gethostbyname implies that
+       it will lookup ip6 & ip4 names, but it seems not to */
+    he = gethostbyname2(node, AF_INET6);
+    if (he)
+    {
+	memcpy(addr, he->h_addr_list[0],
+	       he->h_length);
+    }
+    else
+    {
+	he = gethostbyname2(node, AF_INET);
+	if (!he)
+	    return -1;
+	map_v4_to_v6((struct in_addr *)he->h_addr_list[0], (struct in6_addr *)addr);
+    }
+
+    return 0;
+}
+
+char *print_csid(const char *csid)
+{
+    static char buf[128];
+    int *icsid = (int *)csid;
+
+    sprintf(buf, "[%x.%x.%x.%x]",
+	    icsid[0],icsid[1],icsid[2],icsid[3]);
+
+    return buf;
+}

daemons/clvmd/tcp-comms.h

@@ -0,0 +1,13 @@
+#include <netinet/in.h>
+
+#define GULM_MAX_CLUSTER_MESSAGE 1600
+#define GULM_MAX_CSID_LEN sizeof(struct in6_addr)
+#define GULM_MAX_CLUSTER_MEMBER_NAME_LEN 128
+
+extern int init_comms(unsigned short);
+extern char *print_csid(const char *);
+int get_main_gulm_cluster_fd(void);
+int cluster_fd_gulm_callback(struct local_client *fd, char *buf, int len, const char *csid, struct local_client **new_client);
+int gulm_cluster_send_message(void *buf, int msglen, const char *csid, const char *errtext);
+void get_our_gulm_csid(char *csid);
+int gulm_connect_csid(const char *csid, struct local_client **newclient);

daemons/cmirrord/Makefile.in

@@ -1,39 +0,0 @@
-#
-# Copyright (C) 2009-2010 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-
-srcdir = @srcdir@
-top_srcdir = @top_srcdir@
-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
-
-include $(top_builddir)/make.tmpl
-
-LIBS += -ldevmapper
-LMLIBS += $(CPG_LIBS) $(SACKPT_LIBS)
-CFLAGS += $(CPG_CFLAGS) $(SACKPT_CFLAGS) $(EXTRA_EXEC_CFLAGS)
-LDFLAGS += $(EXTRA_EXEC_LDFLAGS)
-
-cmirrord: $(OBJECTS) $(top_builddir)/lib/liblvm-internal.a
-	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJECTS) \
-		$(LVMLIBS) $(LMLIBS) $(LIBS)
-
-install: $(TARGETS)
-	$(INSTALL_PROGRAM) -D cmirrord $(usrsbindir)/cmirrord

daemons/cmirrord/clogd.c

@@ -1,256 +0,0 @@
-/*
- * Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-#include "logging.h"
-#include "common.h"
-#include "functions.h"
-#include "link_mon.h"
-#include "local.h"
-
-#include <errno.h>
-#include <fcntl.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/wait.h>
-#include <unistd.h>
-
-static volatile sig_atomic_t exit_now = 0;
-/* FIXME Review signal handling.  Should be volatile sig_atomic_t */
-static sigset_t signal_mask;
-static volatile sig_atomic_t signal_received;
-
-static void process_signals(void);
-static void daemonize(void);
-static void init_all(void);
-static void cleanup_all(void);
-
-int main(int argc __attribute__((unused)), char *argv[] __attribute__((unused)))
-{
-	daemonize();
-
-	init_all();
-
-	/* Parent can now exit, we're ready to handle requests */
-	kill(getppid(), SIGTERM);
-
-	LOG_PRINT("Starting cmirrord:");
-	LOG_PRINT(" Built: "__DATE__" "__TIME__"\n");
-	LOG_DBG(" Compiled with debugging.");
-
-	while (!exit_now) {
-		links_monitor();
-
-		links_issue_callbacks();
-
-		process_signals();
-	}
-	exit(EXIT_SUCCESS);
-}
-
-/*
- * parent_exit_handler: exit the parent
- * @sig: the signal
- *
- */
-static void parent_exit_handler(int sig __attribute__((unused)))
-{
-	exit_now = 1;
-}
-
-static void sig_handler(int sig)
-{
-	/* FIXME Races - don't touch signal_mask here. */
-	sigaddset(&signal_mask, sig);
-	signal_received = 1;
-}
-
-static void process_signal(int sig){
-	int r = 0;
-
-	switch(sig) {
-	case SIGINT:
-	case SIGQUIT:
-	case SIGTERM:
-	case SIGHUP:
-		r += log_status();
-		break;
-	case SIGUSR1:
-	case SIGUSR2:
-		log_debug();
-		/*local_debug();*/
-		cluster_debug();
-		return;
-	default:
-		LOG_PRINT("Unknown signal received... ignoring");
-		return;
-	}
-
-	if (!r) {
-		LOG_DBG("No current cluster logs... safe to exit.");
-		cleanup_all();
-		exit(EXIT_SUCCESS);
-	}
-
-	LOG_ERROR("Cluster logs exist.  Refusing to exit.");
-}
-
-static void process_signals(void)
-{
-	int x;
-
-	if (!signal_received)
-		return;
-
-	signal_received = 0;
-
-	for (x = 1; x < _NSIG; x++) {
-		if (sigismember(&signal_mask, x)) {
-			sigdelset(&signal_mask, x);
-			process_signal(x);
-		}
-	}
-}
-
-static void remove_lockfile(void)
-{
-	if (unlink(CMIRRORD_PIDFILE))
-		LOG_ERROR("Unable to remove \"" CMIRRORD_PIDFILE "\" %s", strerror(errno));
-}
-
-/*
- * daemonize
- *
- * Performs the steps necessary to become a daemon.
- */
-static void daemonize(void)
-{
-	int pid;
-	int status;
-	int devnull;
-
-	if ((devnull = open("/dev/null", O_RDWR)) == -1) {
-		LOG_ERROR("Can't open /dev/null: %s", strerror(errno));
-		exit(EXIT_FAILURE);
-	}
-
-	signal(SIGTERM, &parent_exit_handler);
-
-	pid = fork();
-
-	if (pid < 0) {
-		LOG_ERROR("Unable to fork()");
-		exit(EXIT_FAILURE);
-	}
-
-	if (pid) {
-		/* Parent waits here for child to get going */
-		while (!waitpid(pid, &status, WNOHANG) && !exit_now);
-		if (exit_now)
-			exit(EXIT_SUCCESS);
-
-		switch (WEXITSTATUS(status)) {
-		case EXIT_LOCKFILE:
-			LOG_ERROR("Failed to create lockfile");
-			LOG_ERROR("Process already running?");
-			break;
-		case EXIT_KERNEL_SOCKET:
-			LOG_ERROR("Unable to create netlink socket");
-			break;
-		case EXIT_KERNEL_BIND:
-			LOG_ERROR("Unable to bind to netlink socket");
-			break;
-		case EXIT_KERNEL_SETSOCKOPT:
-			LOG_ERROR("Unable to setsockopt on netlink socket");
-			break;
-		case EXIT_CLUSTER_CKPT_INIT:
-			LOG_ERROR("Unable to initialize checkpoint service");
-			LOG_ERROR("Has the cluster infrastructure been started?");
-			break;
-		case EXIT_FAILURE:
-			LOG_ERROR("Failed to start: Generic error");
-			break;
-		default:
-			LOG_ERROR("Failed to start: Unknown error");
-			break;
-		}
-		exit(EXIT_FAILURE);
-	}
-
-	setsid();
-	if (chdir("/")) {
-		LOG_ERROR("Failed to chdir /: %s", strerror(errno));
-		exit(EXIT_FAILURE);
-	}
-
-	umask(0);
-
-	if (close(0) || close(1) || close(2)) {
-		LOG_ERROR("Failed to close terminal FDs");
-		exit(EXIT_FAILURE);
-	}
-
-	if ((dup2(devnull, 0) < 0) || /* reopen stdin */
-	    (dup2(devnull, 1) < 0) || /* reopen stdout */
-	    (dup2(devnull, 2) < 0))   /* reopen stderr */
-		exit(EXIT_FAILURE);
-
-	if ((devnull > STDERR_FILENO) && close(devnull)) {
-		LOG_ERROR("Failed to close descriptor %d: %s",
-			  devnull, strerror(errno));
-		exit(EXIT_FAILURE);
-	}
-
-	LOG_OPEN("cmirrord", LOG_PID, LOG_DAEMON);
-
-	(void) dm_prepare_selinux_context(CMIRRORD_PIDFILE, S_IFREG);
-	if (dm_create_lockfile(CMIRRORD_PIDFILE) == 0)
-		exit(EXIT_LOCKFILE);
-	(void) dm_prepare_selinux_context(NULL, 0);
-
-	atexit(remove_lockfile);
-
-	/* FIXME Replace with sigaction. (deprecated) */
-	signal(SIGINT, &sig_handler);
-	signal(SIGQUIT, &sig_handler);
-	signal(SIGTERM, &sig_handler);
-	signal(SIGHUP, &sig_handler);
-	signal(SIGPIPE, SIG_IGN);
-	signal(SIGUSR1, &sig_handler);
-	signal(SIGUSR2, &sig_handler);
-	sigemptyset(&signal_mask);
-	signal_received = 0;
-}
-
-/*
- * init_all
- *
- * Initialize modules.  Exit on failure.
- */
-static void init_all(void)
-{
-	int r;
-
-	if ((r = init_local()) ||
-	    (r = init_cluster())) {
-		exit(r);
-	}
-}
-
-/*
- * cleanup_all
- *
- * Clean up before exiting
- */
-static void cleanup_all(void)
-{
-	cleanup_local();
-	cleanup_cluster();
-}

daemons/cmirrord/cluster.h

@@ -1,76 +0,0 @@
-/*
- * Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-#ifndef _LVM_CLOG_CLUSTER_H
-#define _LVM_CLOG_CLUSTER_H
-
-#include "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
-#define DM_ULOG_MEMBER_JOIN      22
-
-/*
- * There is other information in addition to what can
- * be found in the dm_ulog_request structure that we
- * need for processing.  'clog_request' is the wrapping
- * structure we use to make the additional fields
- * available.
- */
-struct clog_request {
-	/*
-	 * If we don't use a union, the structure size will
-	 * vary between 32-bit and 64-bit machines.  So, we
-	 * pack two 64-bit version numbers in there to force
-	 * the size of the structure to be the same.
-	 *
-	 * The two version numbers also help us with endian
-	 * issues.  The first is always little endian, while
-	 * the second is in native format of the sending
-	 * machine.  If the two are equal, there is no need
-	 * to do endian conversions.
-	 */
-	union {
-		uint64_t version[2]; /* LE version and native version */
-		struct dm_list list;
-	} u;
-
-	/*
-	 * 'originator' is the machine from which the requests
-	 * was made.
-	 */
-	uint32_t originator;
-
-	/*
-	 * 'pit_server' is the "point-in-time" server for the
-	 * request.  (I.e.  The machine that was the server at
-	 * the time the request was issued - only important during
-	 * startup.
-	 */
-	uint32_t pit_server;
-
-	/*
-	 * The request from the kernel that is being processed
-	 */
-	struct dm_ulog_request u_rq;
-};
-
-int init_cluster(void);
-void cleanup_cluster(void);
-void cluster_debug(void);
-
-int create_cluster_cpg(char *uuid, uint64_t luid);
-int destroy_cluster_cpg(char *uuid);
-
-int cluster_send(struct clog_request *rq);
-
-#endif /* _LVM_CLOG_CLUSTER_H */

daemons/cmirrord/common.h

@@ -1,33 +0,0 @@
-/*
- * Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-#ifndef _LVM_CLOG_COMMON_H
-#define _LVM_CLOG_COMMON_H
-
-/*
- * If there are problems when forking off to become a daemon,
- * the child will exist with one of these codes.  This allows
- * the parent to know the reason for the failure and print it
- * to the launching terminal.
- *
- * #define EXIT_SUCCESS 0 (from stdlib.h)
- * #define EXIT_FAILURE 1 (from stdlib.h)
- */
-#define EXIT_LOCKFILE              2
-#define EXIT_KERNEL_SOCKET         3 /* Failed netlink socket create */
-#define EXIT_KERNEL_BIND           4
-#define EXIT_KERNEL_SETSOCKOPT     5
-#define EXIT_CLUSTER_CKPT_INIT     6 /* Failed to init checkpoint */
-#define EXIT_QUEUE_NOMEM           7
-
-#define DM_ULOG_REQUEST_SIZE 1024
-
-#endif /* _LVM_CLOG_COMMON_H */

daemons/cmirrord/compat.c

@@ -1,211 +0,0 @@
-/*
- * Copyright (C) 2010 Red Hat, Inc. All rights reserved.
- *
- * 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 "logging.h"
-#include "cluster.h"
-#include "compat.h"
-#include "xlate.h"
-
-#include <errno.h>
-
-/*
- * Older versions of the log daemon communicate with different
- * versions of the inter-machine communication structure, which
- * varies in size and fields.  The older versions append the
- * standard upstream version of the structure to every request.
- * COMPAT_OFFSET is where the upstream structure starts.
- */
-#define COMPAT_OFFSET 256
-
-static void v5_data_endian_switch(struct clog_request *rq, int to_network __attribute__((unused)))
-{
-	int i, end;
-	int64_t *pi64;
-	uint64_t *pu64;
-	uint32_t rq_type = rq->u_rq.request_type & ~DM_ULOG_RESPONSE;
-
-	if (rq->u_rq.request_type & DM_ULOG_RESPONSE) {
-		switch (rq_type) {
-		case DM_ULOG_CTR:
-		case DM_ULOG_DTR:
-			LOG_ERROR("Invalid response type in endian switch");
-			exit(EXIT_FAILURE);
-
-		case DM_ULOG_PRESUSPEND:
-		case DM_ULOG_POSTSUSPEND:
-		case DM_ULOG_RESUME:
-		case DM_ULOG_FLUSH:
-		case DM_ULOG_MARK_REGION:
-		case DM_ULOG_CLEAR_REGION:
-		case DM_ULOG_SET_REGION_SYNC:
-		case DM_ULOG_CHECKPOINT_READY:
-		case DM_ULOG_MEMBER_JOIN:
-		case DM_ULOG_STATUS_INFO:
-		case DM_ULOG_STATUS_TABLE:
-			/* No outbound data */
-			break;
-
-		case DM_ULOG_GET_REGION_SIZE:
-		case DM_ULOG_GET_SYNC_COUNT:
-			pu64 = (uint64_t *)rq->u_rq.data;
-			*pu64 = xlate64(*pu64);
-			break;
-		case DM_ULOG_IS_CLEAN:
-		case DM_ULOG_IN_SYNC:
-			pi64 = (int64_t *)rq->u_rq.data;
-			*pi64 = xlate64(*pi64);
-			break;
-		case DM_ULOG_GET_RESYNC_WORK:
-		case DM_ULOG_IS_REMOTE_RECOVERING:
-			pi64 = (int64_t *)rq->u_rq.data;
-			pu64 = ((uint64_t *)rq->u_rq.data) + 1;
-			*pi64 = xlate64(*pi64);
-			*pu64 = xlate64(*pu64);
-			break;
-		default:
-			LOG_ERROR("Unknown request type, %u", rq_type);
-			return;
-		}
-	} else {
-		switch (rq_type) {
-		case DM_ULOG_CTR:
-		case DM_ULOG_DTR:
-			LOG_ERROR("Invalid request type in endian switch");
-			exit(EXIT_FAILURE);
-
-		case DM_ULOG_PRESUSPEND:
-		case DM_ULOG_POSTSUSPEND:
-		case DM_ULOG_RESUME:
-		case DM_ULOG_GET_REGION_SIZE:
-		case DM_ULOG_FLUSH:
-		case DM_ULOG_GET_RESYNC_WORK:
-		case DM_ULOG_GET_SYNC_COUNT:
-		case DM_ULOG_STATUS_INFO:
-		case DM_ULOG_STATUS_TABLE:
-		case DM_ULOG_CHECKPOINT_READY:
-		case DM_ULOG_MEMBER_JOIN:
-			/* No incoming data */
-			break;
-		case DM_ULOG_IS_CLEAN:
-		case DM_ULOG_IN_SYNC:
-		case DM_ULOG_IS_REMOTE_RECOVERING:
-			pu64 = (uint64_t *)rq->u_rq.data;
-			*pu64 = xlate64(*pu64);
-			break;
-		case DM_ULOG_MARK_REGION:
-		case DM_ULOG_CLEAR_REGION:
-			end = rq->u_rq.data_size/sizeof(uint64_t);
-
-			pu64 = (uint64_t *)rq->u_rq.data;
-			for (i = 0; i < end; i++)
-				pu64[i] = xlate64(pu64[i]);
-			break;
-		case DM_ULOG_SET_REGION_SYNC:
-			pu64 = (uint64_t *)rq->u_rq.data;
-			pi64 = ((int64_t *)rq->u_rq.data) + 1;
-			*pu64 = xlate64(*pu64);
-			*pi64 = xlate64(*pi64);
-			break;
-		default:
-			LOG_ERROR("Unknown request type, %u", rq_type);
-			exit(EXIT_FAILURE);
-		}
-	}
-}
-
-static int v5_endian_to_network(struct clog_request *rq)
-{
-	int size;
-	struct dm_ulog_request *u_rq = &rq->u_rq;
-
-	size = sizeof(*rq) + u_rq->data_size;
-
-	u_rq->error = xlate32(u_rq->error);
-	u_rq->seq = xlate32(u_rq->seq);
-
-	rq->originator = xlate32(rq->originator);
-
-	v5_data_endian_switch(rq, 1);
-
-	u_rq->request_type = xlate32(u_rq->request_type);
-	u_rq->data_size = xlate32(u_rq->data_size);
-
-	return size;
-}
-
-int clog_request_to_network(struct clog_request *rq)
-{
-	int r;
-
-	/* FIXME: Remove this safety check */
-	if (rq->u.version[0] != xlate64(rq->u.version[1])) {
-		LOG_ERROR("Programmer error:  version[0] must be LE");
-		exit(EXIT_FAILURE);
-	}
-
-	/*
-	 * Are we already running in the endian mode we send
-	 * over the wire?
-	 */
-	if (rq->u.version[0] == rq->u.version[1])
-		return 0;
-
-	r = v5_endian_to_network(rq);
-	if (r < 0)
-		return r;
-	return 0;
-}
-
-static int v5_endian_from_network(struct clog_request *rq)
-{
-	int size;
-	struct dm_ulog_request *u_rq = &rq->u_rq;
-
-	u_rq->error = xlate32(u_rq->error);
-	u_rq->seq = xlate32(u_rq->seq);
-	u_rq->request_type = xlate32(u_rq->request_type);
-	u_rq->data_size = xlate32(u_rq->data_size);
-
-	rq->originator = xlate32(rq->originator);
-
-	size = sizeof(*rq) + u_rq->data_size;
-
-	v5_data_endian_switch(rq, 0);
-
-	return size;
-}
-
-int clog_request_from_network(void *data, size_t data_len)
-{
-	uint64_t *vp = data;
-	uint64_t version = xlate64(vp[0]);
-	uint64_t unconverted_version = vp[1];
-	struct clog_request *rq = data;
-
-	switch (version) {
-	case 5: /* Upstream */
-		if (version == vp[0])
-			return 0;
-		break;
-	case 4: /* RHEL 5.[45] */
-	case 3: /* RHEL 5.3 */
-	case 2: /* RHEL 5.2 */
-		/* FIXME: still need to account for payload */
-		if (data_len < (COMPAT_OFFSET + sizeof(*rq)))
-			return -ENOSPC;
-
-		rq = (struct clog_request *)((char *)data + COMPAT_OFFSET);
-		break;
-	default:
-		LOG_ERROR("Unable to process cluster message: "
-			  "Incompatible version");
-		return -EINVAL;
-	}
-
-	v5_endian_from_network(rq);
-	return 0;
-}

daemons/cmirrord/compat.h

@@ -1,25 +0,0 @@
-/*
- * Copyright (C) 2010 Red Hat, Inc. All rights reserved.
- *
- * 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.
- */
-#ifndef _LVM_CLOG_COMPAT_H
-#define _LVM_CLOG_COMPAT_H
-
-/*
- * The intermachine communication structure version are:
- *	0: Unused
- *	1: Never in the wild
- *	2: RHEL 5.2
- *	3: RHEL 5.3
- *	4: RHEL 5.4, RHEL 5.5
- *	5: RHEL 6, Current Upstream Format
- */
-#define CLOG_TFR_VERSION 5
-
-int clog_request_to_network(struct clog_request *rq);
-int clog_request_from_network(void *data, size_t data_len);
-
-#endif /* _LVM_CLOG_COMPAT_H */

daemons/cmirrord/functions.h

@@ -1,34 +0,0 @@
-/*
- * Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-#ifndef _LVM_CLOG_FUNCTIONS_H
-#define _LVM_CLOG_FUNCTIONS_H
-
-#include "dm-log-userspace.h"
-#include "cluster.h"
-
-#define LOG_RESUMED   1
-#define LOG_SUSPENDED 2
-
-int local_resume(struct dm_ulog_request *rq);
-int cluster_postsuspend(char *, uint64_t);
-
-int do_request(struct clog_request *rq, int server);
-int push_state(const char *uuid, uint64_t luid,
-	       const char *which, char **buf, uint32_t debug_who);
-int pull_state(const char *uuid, uint64_t luid,
-	       const char *which, char *buf, int size);
-
-int log_get_state(struct dm_ulog_request *rq);
-int log_status(void);
-void log_debug(void);
-
-#endif /* _LVM_CLOG_FUNCTIONS_H */

daemons/cmirrord/link_mon.c

@@ -1,151 +0,0 @@
-/*
- * Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-#include "logging.h"
-#include "link_mon.h"
-
-#include <errno.h>
-#include <poll.h>
-#include <stdlib.h>
-
-struct link_callback {
-	int fd;
-	const char *name;
-	void *data;
-	int (*callback)(void *data);
-
-	struct link_callback *next;
-};
-
-static unsigned used_pfds = 0;
-static unsigned free_pfds = 0;
-static struct pollfd *pfds = NULL;
-static struct link_callback *callbacks = NULL;
-
-int links_register(int fd, const char *name, int (*callback)(void *data), void *data)
-{
-	unsigned i;
-	struct link_callback *lc;
-
-	for (i = 0; i < used_pfds; i++) {
-		if (fd == pfds[i].fd) {
-			LOG_ERROR("links_register: Duplicate file descriptor");
-			return -EINVAL;
-		}
-	}
-
-	lc = malloc(sizeof(*lc));
-	if (!lc)
-		return -ENOMEM;
-
-	lc->fd = fd;
-	lc->name = name;
-	lc->data = data;
-	lc->callback = callback;
-
-	if (!free_pfds) {
-		struct pollfd *tmp;
-		tmp = realloc(pfds, sizeof(struct pollfd) * ((used_pfds*2) + 1));
-		if (!tmp) {
-			free(lc);
-			return -ENOMEM;
-		}
-
-		pfds = tmp;
-		free_pfds = used_pfds + 1;
-	}
-
-	free_pfds--;
-	pfds[used_pfds].fd = fd;
-	pfds[used_pfds].events = POLLIN;
-	pfds[used_pfds].revents = 0;
-	used_pfds++;
-
-	lc->next = callbacks;
-	callbacks = lc;
-	LOG_DBG("Adding %s/%d", lc->name, lc->fd);
-	LOG_DBG(" used_pfds = %u, free_pfds = %u",
-		used_pfds, free_pfds);
-
-	return 0;
-}
-
-int links_unregister(int fd)
-{
-	unsigned i;
-	struct link_callback *p, *c;
-
-	for (i = 0; i < used_pfds; i++)
-		if (fd == pfds[i].fd) {
-			/* entire struct is copied (overwritten) */
-			pfds[i] = pfds[used_pfds - 1];
-			used_pfds--;
-			free_pfds++;
-		}
-
-	for (p = NULL, c = callbacks; c; p = c, c = c->next)
-		if (fd == c->fd) {
-			LOG_DBG("Freeing up %s/%d", c->name, c->fd);
-			LOG_DBG(" used_pfds = %u, free_pfds = %u",
-				used_pfds, free_pfds);
-			if (p)
-				p->next = c->next;
-			else
-				callbacks = c->next;
-			free(c);
-			break;
-		}
-
-	return 0;
-}
-
-int links_monitor(void)
-{
-	unsigned i;
-	int r;
-
-	for (i = 0; i < used_pfds; i++) {
-		pfds[i].revents = 0;
-	}
-
-	r = poll(pfds, used_pfds, -1);
-	if (r <= 0)
-		return r;
-
-	r = 0;
-	/* FIXME: handle POLLHUP */
-	for (i = 0; i < used_pfds; i++)
-		if (pfds[i].revents & POLLIN) {
-			LOG_DBG("Data ready on %d", pfds[i].fd);
-
-			/* FIXME: Add this back return 1;*/
-			r++;
-		}
-
-	return r;
-}
-
-int links_issue_callbacks(void)
-{
-	unsigned i;
-	struct link_callback *lc;
-
-	for (i = 0; i < used_pfds; i++)
-		if (pfds[i].revents & POLLIN)
-			for (lc = callbacks; lc; lc = lc->next)
-				if (pfds[i].fd == lc->fd) {
-					LOG_DBG("Issuing callback on %s/%d",
-						lc->name, lc->fd);
-					lc->callback(lc->data);
-					break;
-				}
-	return 0;
-}

daemons/cmirrord/link_mon.h

@@ -1,20 +0,0 @@
-/*
- * Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-#ifndef _LVM_CLOG_LINK_MON_H
-#define _LVM_CLOG_LINK_MON_H
-
-int links_register(int fd, const char *name, int (*callback)(void *data), void *data);
-int links_unregister(int fd);
-int links_monitor(void);
-int links_issue_callbacks(void);
-
-#endif /* _LVM_CLOG_LINK_MON_H */

daemons/cmirrord/local.c

@@ -1,424 +0,0 @@
-/*
- * Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-#include "logging.h"
-#include "common.h"
-#include "functions.h"
-#include "link_mon.h"
-#include "local.h"
-
-#include <errno.h>
-#include <sys/socket.h>
-#include <linux/connector.h>
-#include <linux/netlink.h>
-#include <unistd.h>
-
-#ifndef CN_IDX_DM
-/* Kernel 2.6.31 is required to run this code */
-#define CN_IDX_DM                       0x7     /* Device Mapper */
-#define CN_VAL_DM_USERSPACE_LOG         0x1
-#endif
-
-static int cn_fd = -1;  /* Connector (netlink) socket fd */
-static char recv_buf[2048];
-static char send_buf[2048];
-
-
-/* FIXME: merge this function with kernel_send_helper */
-static int kernel_ack(uint32_t seq, int error)
-{
-	int r;
-	struct nlmsghdr *nlh = (struct nlmsghdr *)send_buf;
-	struct cn_msg *msg = NLMSG_DATA(nlh);
-
-	if (error < 0) {
-		LOG_ERROR("Programmer error: error codes must be positive");
-		return -EINVAL;
-	}
-
-	memset(send_buf, 0, sizeof(send_buf));
-
-	nlh->nlmsg_seq = 0;
-	nlh->nlmsg_pid = getpid();
-	nlh->nlmsg_type = NLMSG_DONE;
-	nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct cn_msg));
-	nlh->nlmsg_flags = 0;
-
-	msg->len = 0;
-	msg->id.idx = CN_IDX_DM;
-	msg->id.val = CN_VAL_DM_USERSPACE_LOG;
-	msg->seq = seq;
-	msg->ack = error;
-
-	r = send(cn_fd, nlh, NLMSG_LENGTH(sizeof(struct cn_msg)), 0);
-	/* FIXME: do better error processing */
-	if (r <= 0)
-		return -EBADE;
-
-	return 0;
-}
-
-
-/*
- * kernel_recv
- * @rq: the newly allocated request from kernel
- *
- * Read requests from the kernel and allocate space for the new request.
- * If there is no request from the kernel, *rq is NULL.
- *
- * This function is not thread safe due to returned stack pointer.  In fact,
- * the returned pointer must not be in-use when this function is called again.
- *
- * Returns: 0 on success, -EXXX on error
- */
-static int kernel_recv(struct clog_request **rq)
-{
-	int r = 0;
-	ssize_t len;
-	char *foo;
-	struct cn_msg *msg;
-	struct dm_ulog_request *u_rq;
-	struct nlmsghdr *nlmsg_h;
-
-	*rq = NULL;
-	memset(recv_buf, 0, sizeof(recv_buf));
-
-	len = recv(cn_fd, recv_buf, sizeof(recv_buf), 0);
-	if (len < 0) {
-		LOG_ERROR("Failed to recv message from kernel");
-		r = -errno;
-		goto fail;
-	}
-
-	nlmsg_h = (struct nlmsghdr *)recv_buf;
-	switch (nlmsg_h->nlmsg_type) {
-	case NLMSG_ERROR:
-		LOG_ERROR("Unable to recv message from kernel: NLMSG_ERROR");
-		r = -EBADE;
-		goto fail;
-	case NLMSG_DONE:
-		msg = (struct cn_msg *)NLMSG_DATA((struct nlmsghdr *)recv_buf);
-		len -= (ssize_t)sizeof(struct nlmsghdr);
-
-		if (len < (ssize_t)sizeof(struct cn_msg)) {
-			LOG_ERROR("Incomplete request from kernel received");
-			r = -EBADE;
-			goto fail;
-		}
-
-		if (msg->len > DM_ULOG_REQUEST_SIZE) {
-			LOG_ERROR("Not enough space to receive kernel request (%d/%d)",
-				  msg->len, DM_ULOG_REQUEST_SIZE);
-			r = -EBADE;
-			goto fail;
-		}
-
-		if (!msg->len)
-			LOG_ERROR("Zero length message received");
-
-		len -= (ssize_t)sizeof(struct cn_msg);
-
-		if (len < msg->len)
-			LOG_ERROR("len = %zd, msg->len = %" PRIu16, len, msg->len);
-
-		msg->data[msg->len] = '\0'; /* Cleaner way to ensure this? */
-		u_rq = (struct dm_ulog_request *)msg->data;
-
-		if (!u_rq->request_type) {
-			LOG_DBG("Bad transmission, requesting resend [%u]",
-				msg->seq);
-			r = -EAGAIN;
-
-			if (kernel_ack(msg->seq, EAGAIN)) {
-				LOG_ERROR("Failed to NACK kernel transmission [%u]",
-					  msg->seq);
-				r = -EBADE;
-			}
-		}
-
-		/*
-		 * Now we've got sizeof(struct cn_msg) + sizeof(struct nlmsghdr)
-		 * worth of space that precede the request structure from the
-		 * kernel.  Since that space isn't going to be used again, we
-		 * can take it for our purposes; rather than allocating a whole
-		 * new structure and doing a memcpy.
-		 *
-		 * We should really make sure 'clog_request' doesn't grow
-		 * beyond what is available to us, but we need only check it
-		 * once... perhaps at compile time?
-		 */
-		foo = (char *)u_rq;
-		foo -= (sizeof(struct clog_request) - sizeof(struct dm_ulog_request));
-		*rq = (struct clog_request *) foo;
-
-		/* Clear the wrapper container fields */
-		memset(*rq, 0, (size_t)((char *)u_rq - (char *)(*rq)));
-		break;
-	default:
-		LOG_ERROR("Unknown nlmsg_type");
-		r = -EBADE;
-	}
-
-fail:
-	if (r)
-		*rq = NULL;
-
-	return (r == -EAGAIN) ? 0 : r;
-}
-
-static int kernel_send_helper(void *data, uint16_t out_size)
-{
-	int r;
-	struct nlmsghdr *nlh;
-	struct cn_msg *msg;
-
-	memset(send_buf, 0, sizeof(send_buf));
-
-	nlh = (struct nlmsghdr *)send_buf;
-	nlh->nlmsg_seq = 0;  /* FIXME: Is this used? */
-	nlh->nlmsg_pid = getpid();
-	nlh->nlmsg_type = NLMSG_DONE;
-	nlh->nlmsg_len = NLMSG_LENGTH(out_size + sizeof(struct cn_msg));
-	nlh->nlmsg_flags = 0;
-
-	msg = NLMSG_DATA(nlh);
-	memcpy(msg->data, data, out_size);
-	msg->len = out_size;
-	msg->id.idx = CN_IDX_DM;
-	msg->id.val = CN_VAL_DM_USERSPACE_LOG;
-	msg->seq = 0;
-
-	r = send(cn_fd, nlh, NLMSG_LENGTH(out_size + sizeof(struct cn_msg)), 0);
-	/* FIXME: do better error processing */
-	if (r <= 0)
-		return -EBADE;
-
-	return 0;
-}
-
-/*
- * do_local_work
- *
- * Any processing errors are placed in the 'rq'
- * structure to be reported back to the kernel.
- * It may be pointless for this function to
- * return an int.
- *
- * Returns: 0 on success, -EXXX on failure
- */
-static int do_local_work(void *data __attribute__((unused)))
-{
-	int r;
-	struct clog_request *rq;
-	struct dm_ulog_request *u_rq = NULL;
-
-	r = kernel_recv(&rq);
-	if (r)
-		return r;
-
-	if (!rq)
-		return 0;
-
-	u_rq = &rq->u_rq;
-	LOG_DBG("[%s]  Request from kernel received: [%s/%u]",
-		SHORT_UUID(u_rq->uuid), RQ_TYPE(u_rq->request_type),
-		u_rq->seq);
-	switch (u_rq->request_type) {
-	case DM_ULOG_CTR:
-	case DM_ULOG_DTR:
-	case DM_ULOG_GET_REGION_SIZE:
-	case DM_ULOG_IN_SYNC:
-	case DM_ULOG_GET_SYNC_COUNT:
-	case DM_ULOG_STATUS_TABLE:
-	case DM_ULOG_PRESUSPEND:
-		/* We do not specify ourselves as server here */
-		r = do_request(rq, 0);
-		if (r)
-			LOG_DBG("Returning failed request to kernel [%s]",
-				RQ_TYPE(u_rq->request_type));
-		r = kernel_send(u_rq);
-		if (r)
-			LOG_ERROR("Failed to respond to kernel [%s]",
-				  RQ_TYPE(u_rq->request_type));
-
-		break;
-	case DM_ULOG_RESUME:
-		/*
-		 * Resume is a special case that requires a local
-		 * component to join the CPG, and a cluster component
-		 * to handle the request.
-		 */
-		r = local_resume(u_rq);
-		if (r) {
-			LOG_DBG("Returning failed request to kernel [%s]",
-				RQ_TYPE(u_rq->request_type));
-			r = kernel_send(u_rq);
-			if (r)
-				LOG_ERROR("Failed to respond to kernel [%s]",
-					  RQ_TYPE(u_rq->request_type));
-			break;
-		}
-		/* ELSE, fall through */
-	case DM_ULOG_IS_CLEAN:
-	case DM_ULOG_FLUSH:
-	case DM_ULOG_MARK_REGION:
-	case DM_ULOG_GET_RESYNC_WORK:
-	case DM_ULOG_SET_REGION_SYNC:
-	case DM_ULOG_STATUS_INFO:
-	case DM_ULOG_IS_REMOTE_RECOVERING:
-	case DM_ULOG_POSTSUSPEND:
-		r = cluster_send(rq);
-		if (r) {
-			u_rq->data_size = 0;
-			u_rq->error = r;
-			if (kernel_send(u_rq))
-				LOG_ERROR("Failed to respond to kernel [%s]",
-					  RQ_TYPE(u_rq->request_type));
-		}
-
-		break;
-	case DM_ULOG_CLEAR_REGION:
-		r = kernel_ack(u_rq->seq, 0);
-
-		r = cluster_send(rq);
-		if (r) {
-			/*
-			 * FIXME: store error for delivery on flush
-			 *        This would allow us to optimize MARK_REGION
-			 *        too.
-			 */
-		}
-
-		break;
-	default:
-		LOG_ERROR("Invalid log request received (%u), ignoring.",
-			  u_rq->request_type);
-
-		return 0;
-	}
-
-	if (r && !u_rq->error)
-		u_rq->error = r;
-
-	return r;
-}
-
-/*
- * kernel_send
- * @u_rq: result to pass back to kernel
- *
- * This function returns the u_rq structure
- * (containing the results) to the kernel.
- * It then frees the structure.
- *
- * WARNING: should the structure be freed if
- * there is an error?  I vote 'yes'.  If the
- * kernel doesn't get the response, it should
- * resend the request.
- *
- * Returns: 0 on success, -EXXX on failure
- */
-int kernel_send(struct dm_ulog_request *u_rq)
-{
-	int r;
-	uint16_t size;
-
-	if (!u_rq)
-		return -EINVAL;
-
-	size = (uint16_t)(sizeof(struct dm_ulog_request) + u_rq->data_size);
-
-	if (!u_rq->data_size && !u_rq->error) {
-		/* An ACK is all that is needed */
-
-		/* FIXME: add ACK code */
-	} else if (size > DM_ULOG_REQUEST_SIZE) {
-		/*
-		 * If we gotten here, we've already overrun
-		 * our allotted space somewhere.
-		 *
-		 * We must do something, because the kernel
-		 * is waiting for a response.
-		 */
-		LOG_ERROR("Not enough space to respond to server");
-		u_rq->error = -ENOSPC;
-		size = sizeof(struct dm_ulog_request);
-	}
-
-	r = kernel_send_helper(u_rq, size);
-	if (r)
-		LOG_ERROR("Failed to send msg to kernel.");
-
-	return r;
-}
-
-/*
- * init_local
- *
- * Initialize kernel communication socket (netlink)
- *
- * Returns: 0 on success, values from common.h on failure
- */
-int init_local(void)
-{
-	int r = 0;
-	unsigned opt;
-	struct sockaddr_nl addr;
-
-	cn_fd = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_CONNECTOR);
-	if (cn_fd < 0)
-		return EXIT_KERNEL_SOCKET;
-
-	/* memset to fix valgrind complaint */
-	memset(&addr, 0, sizeof(struct sockaddr_nl));
-
-	addr.nl_family = AF_NETLINK;
-	addr.nl_groups = CN_IDX_DM;
-	addr.nl_pid = 0;
-
-	r = bind(cn_fd, (struct sockaddr *) &addr, sizeof(addr));
-	if (r < 0) {
-		if (close(cn_fd))
-			LOG_ERROR("Failed to close socket: %s",
-				  strerror(errno));
-		return EXIT_KERNEL_BIND;
-	}
-
-	opt = addr.nl_groups;
-	r = setsockopt(cn_fd, 270, NETLINK_ADD_MEMBERSHIP, &opt, sizeof(opt));
-	if (r) {
-		if (close(cn_fd))
-			LOG_ERROR("Failed to close socket: %s",
-				  strerror(errno));
-		return EXIT_KERNEL_SETSOCKOPT;
-	}
-
-	/*
-	r = fcntl(cn_fd, F_SETFL, FNDELAY);
-	*/
-
-	links_register(cn_fd, "local", do_local_work, NULL);
-
-	return 0;
-}
-
-/*
- * cleanup_local
- *
- * Clean up before exiting
- */
-void cleanup_local(void)
-{
-	links_unregister(cn_fd);
-	if (cn_fd >= 0 && close(cn_fd))
-		LOG_ERROR("Failed to close socket: %s",
-			  strerror(errno));
-}

daemons/cmirrord/local.h

@@ -1,20 +0,0 @@
-/*
- * Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-#ifndef _LVM_CLOG_LOCAL_H
-#define _LVM_CLOG_LOCAL_H
-
-int init_local(void);
-void cleanup_local(void);
-
-int kernel_send(struct dm_ulog_request *rq);
-
-#endif /* _LVM_CLOG_LOCAL_H */

daemons/cmirrord/logging.c

@@ -1,57 +0,0 @@
-/*
- * Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-#include "logging.h"
-
-const char *__rq_types_off_by_one[] = {
-	"DM_ULOG_CTR",
-	"DM_ULOG_DTR",
-	"DM_ULOG_PRESUSPEND",
-	"DM_ULOG_POSTSUSPEND",
-	"DM_ULOG_RESUME",
-	"DM_ULOG_GET_REGION_SIZE",
-	"DM_ULOG_IS_CLEAN",
-	"DM_ULOG_IN_SYNC",
-	"DM_ULOG_FLUSH",
-	"DM_ULOG_MARK_REGION",
-	"DM_ULOG_CLEAR_REGION",
-	"DM_ULOG_GET_RESYNC_WORK",
-	"DM_ULOG_SET_REGION_SYNC",
-	"DM_ULOG_GET_SYNC_COUNT",
-	"DM_ULOG_STATUS_INFO",
-	"DM_ULOG_STATUS_TABLE",
-	"DM_ULOG_IS_REMOTE_RECOVERING",
-	NULL
-};
-
-int log_tabbing = 0;
-int log_is_open = 0;
-
-/*
- * Variables for various conditional logging
- */
-#ifdef MEMB
-int log_membership_change = 1;
-#else
-int log_membership_change = 0;
-#endif
-
-#ifdef CKPT
-int log_checkpoint = 1;
-#else
-int log_checkpoint = 0;
-#endif
-
-#ifdef RESEND
-int log_resend_requests = 1;
-#else
-int log_resend_requests = 0;
-#endif

daemons/cmirrord/logging.h

@@ -1,77 +0,0 @@
-/*
- * Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#ifndef _LVM_CLOG_LOGGING_H
-#define _LVM_CLOG_LOGGING_H
-
-#define _GNU_SOURCE
-#define _FILE_OFFSET_BITS 64
-
-#include "configure.h"
-#include <stdio.h>
-#include <stdint.h>
-#include <syslog.h>
-
-/* SHORT_UUID - print last 8 chars of a string */
-#define SHORT_UUID(x) (strlen(x) > 8) ? ((x) + (strlen(x) - 8)) : (x)
-
-extern const char *__rq_types_off_by_one[];
-#define RQ_TYPE(x) __rq_types_off_by_one[(x) - 1]
-
-extern int log_tabbing;
-extern int log_is_open;
-extern int log_membership_change;
-extern int log_checkpoint;
-extern int log_resend_requests;
-
-#define LOG_OPEN(ident, option, facility) do { \
-		openlog(ident, option, facility); \
-		log_is_open = 1;		  \
-	} while (0)
-
-#define LOG_CLOSE(void) do { \
-		log_is_open = 0; \
-		closelog();	 \
-	} while (0)
-
-#define LOG_OUTPUT(level, f, arg...) do {				\
-		int __i;						\
-		char __buffer[16];					\
-		FILE *fp = (level > LOG_NOTICE) ? stderr : stdout;	\
-		if (log_is_open) {					\
-			for (__i = 0; (__i < log_tabbing) && (__i < 15); __i++) \
-				__buffer[__i] = '\t';			\
-			__buffer[__i] = '\0';				\
-			syslog(level, "%s" f "\n", __buffer, ## arg);	\
-		} else {						\
-			for (__i = 0; __i < log_tabbing; __i++)		\
-				fprintf(fp, "\t");			\
-			fprintf(fp, f "\n", ## arg);			\
-		}							\
-	} while (0)
-
-
-#ifdef DEBUG
-#define LOG_DBG(f, arg...) LOG_OUTPUT(LOG_DEBUG, f, ## arg)
-#else /* DEBUG */
-#define LOG_DBG(f, arg...) do {} while (0)
-#endif /* DEBUG */
-
-#define LOG_COND(__X, f, arg...) do {\
-		if (__X) { 	     \
-			LOG_OUTPUT(LOG_NOTICE, f, ## arg); \
-		} \
-	} while (0)
-#define LOG_PRINT(f, arg...) LOG_OUTPUT(LOG_NOTICE, f, ## arg)
-#define LOG_ERROR(f, arg...) LOG_OUTPUT(LOG_ERR, f, ## arg)
-
-#endif /* _LVM_CLOG_LOGGING_H */

daemons/dmeventd/.exported_symbols

@@ -1,4 +1,19 @@
-init_fifos
+dm_event_handler_create
-fini_fifos
+dm_event_handler_destroy
-daemon_talk
+dm_event_handler_set_dso
-dm_event_get_version
+dm_event_handler_set_dev_name
+dm_event_handler_set_uuid
+dm_event_handler_set_major
+dm_event_handler_set_minor
+dm_event_handler_set_event_mask
+dm_event_handler_get_dso
+dm_event_handler_get_devname
+dm_event_handler_get_uuid
+dm_event_handler_get_major
+dm_event_handler_get_minor
+dm_event_handler_get_event_mask
+dm_event_register_handler
+dm_event_unregister_handler
+dm_event_get_registered_device
+dm_event_handler_set_timeout
+dm_event_handler_get_timeout

daemons/dmeventd/Makefile.in

@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2005-2011 Red Hat, Inc. All rights reserved.
+# Copyright (C) 2005-2007 Red Hat, Inc. All rights reserved.
 #
 # This file is part of the device-mapper userspace tools.
 #
@@ -13,98 +13,86 @@
 
 srcdir = @srcdir@
 top_srcdir = @top_srcdir@
-top_builddir = @top_builddir@
+VPATH = @srcdir@
 
 SOURCES = libdevmapper-event.c
-SOURCES2 = dmeventd.c
 
-TARGETS = dmeventd
+LIB_STATIC = libdevmapper-event.a
+LIB_VERSION = $(LIB_VERSION_DM)
 
-.PHONY: install_lib_dynamic install_lib_static install_include \
+ifeq ("@LIB_SUFFIX@","dylib")
-	install_pkgconfig install_dmeventd_dynamic install_dmeventd_static \
+  LIB_SHARED = libdevmapper-event.dylib
-	install_lib install_dmeventd
+else
-
+  LIB_SHARED = libdevmapper-event.so
-INSTALL_DMEVENTD_TARGETS = install_dmeventd_dynamic
+  VERSIONED_SHLIB = $(LIB_SHARED).$(LIB_VERSION)
-INSTALL_LIB_TARGETS = install_lib_dynamic
-
-LIB_NAME = libdevmapper-event
-ifeq ("@STATIC_LINK@", "yes")
-  LIB_STATIC = $(LIB_NAME).a
-  TARGETS += $(LIB_STATIC) dmeventd.static
-  INSTALL_DMEVENTD_TARGETS += install_dmeventd_static
-  INSTALL_LIB_TARGETS += install_lib_static
 endif
 
-LIB_VERSION = $(LIB_VERSION_DM)
+TARGETS = dmeventd
-LIB_SHARED = $(LIB_NAME).$(LIB_SUFFIX)
+CLEAN_TARGETS = dmeventd.o
-
-CLEAN_TARGETS = dmeventd.static $(LIB_NAME).a
 
 ifneq ($(MAKECMDGOALS),device-mapper)
   SUBDIRS+=plugins
 endif
 
-CFLOW_LIST = $(SOURCES)
+include $(top_srcdir)/make.tmpl
-CFLOW_LIST_TARGET = $(LIB_NAME).cflow
-CFLOW_TARGET = dmeventd
 
-EXPORTED_HEADER = $(srcdir)/libdevmapper-event.h
+all: dmeventd
-EXPORTED_FN_PREFIX = dm_event
+device-mapper: dmeventd
 
-include $(top_builddir)/make.tmpl
+LDFLAGS += -ldl -ldevmapper -lpthread
+CLDFLAGS += -ldl -ldevmapper -lpthread
 
-all: device-mapper
+dmeventd: $(LIB_SHARED) $(VERSIONED_SHLIB) dmeventd.o
-device-mapper: $(TARGETS)
+	$(CC) -o $@ dmeventd.o $(CFLAGS) $(LDFLAGS) \
+	-L. -ldevmapper-event $(LIBS) -rdynamic
 
-LIBS += -ldevmapper
+.PHONY: install_dynamic install_static install_include \
-LVMLIBS += -ldevmapper-event $(PTHREAD_LIBS)
+	install_pkgconfig install_dmeventd
 
-CFLAGS_dmeventd.o += $(EXTRA_EXEC_CFLAGS)
+INSTALL_TYPE = install_dynamic
 
-dmeventd: $(LIB_SHARED) dmeventd.o
+ifeq ("@STATIC_LINK@", "yes")
-	$(CC) $(CFLAGS) $(LDFLAGS) $(EXTRA_EXEC_LDFLAGS) $(ELDFLAGS) -L. -o $@ dmeventd.o \
+  INSTALL_TYPE += install_static
-	$(DL_LIBS) $(LVMLIBS) $(LIBS) -rdynamic
+endif
-
-dmeventd.static: $(LIB_STATIC) dmeventd.o $(interfacebuilddir)/libdevmapper.a
-	$(CC) $(CFLAGS) $(LDFLAGS) $(ELDFLAGS) -static -L. -L$(interfacebuilddir) -o $@ \
-	dmeventd.o $(DL_LIBS) $(LVMLIBS) $(LIBS) $(STATIC_LIBS)
 
 ifeq ("@PKGCONFIG@", "yes")
-  INSTALL_LIB_TARGETS += install_pkgconfig
+  INSTALL_TYPE += install_pkgconfig
 endif
 
-ifneq ("$(CFLOW_CMD)", "")
+install: $(INSTALL_TYPE) install_include install_dmeventd
-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
+install_device-mapper: install
-	$(INSTALL_DATA) -D $< $(includedir)/$(<F)
 
-install_pkgconfig: libdevmapper-event.pc
+install_include:
-	$(INSTALL_DATA) -D $< $(pkgconfigdir)/devmapper-event.pc
+	$(INSTALL) -D $(OWNER) $(GROUP) -m 444 libdevmapper-event.h \
+		$(includedir)/libdevmapper-event.h
 
-install_lib_dynamic: install_lib_shared
+install_dynamic: libdevmapper-event.$(LIB_SUFFIX)
+	$(INSTALL) -D $(OWNER) $(GROUP) -m 555 $(STRIP) $< \
+		$(libdir)/libdevmapper-event.$(LIB_SUFFIX).$(LIB_VERSION)
+	$(LN_S) -f libdevmapper-event.$(LIB_SUFFIX).$(LIB_VERSION) \
+		$(libdir)/libdevmapper-event.$(LIB_SUFFIX)
 
-install_lib_static: $(LIB_STATIC)
+install_dmeventd: dmeventd
-	$(INSTALL_DATA) -D $< $(usrlibdir)/$(<F)
+	$(INSTALL) -D $(OWNER) $(GROUP) -m 555 $(STRIP) $< $(sbindir)/$<
 
-install_lib: $(INSTALL_LIB_TARGETS)
+install_pkgconfig:
+	$(INSTALL) -D $(OWNER) $(GROUP) -m 444 libdevmapper-event.pc \
+		$(usrlibdir)/pkgconfig/devmapper-event.pc
 
-install_dmeventd_dynamic: dmeventd
+install_static: libdevmapper-event.a
-	$(INSTALL_PROGRAM) -D $< $(sbindir)/$(<F)
+	$(INSTALL) -D $(OWNER) $(GROUP) -m 555 $(STRIP) $< \
+		$(libdir)/libdevmapper-event.a.$(LIB_VERSION)
+	$(LN_S) -f libdevmapper-event.a.$(LIB_VERSION) $(libdir)/libdevmapper-event.a
 
-install_dmeventd_static: dmeventd.static
+$(VERSIONED_SHLIB): $(LIB_SHARED)
-	$(INSTALL_PROGRAM) -D $< $(staticdir)/$(<F)
+	$(RM) -f $@
+	$(LN_S) $(LIB_SHARED) $@
 
-install_dmeventd: $(INSTALL_DMEVENTD_TARGETS)
+.PHONY: distclean_lib distclean
 
-install: install_include install_lib install_dmeventd
+distclean_lib: 
+	$(RM) libdevmapper-event.pc
 
-install_device-mapper: install_include install_lib install_dmeventd
+distclean: distclean_lib
 
-DISTCLEAN_TARGETS += libdevmapper-event.pc

daemons/dmeventd/dmeventd.h

@@ -17,8 +17,11 @@
 
 /* FIXME This stuff must be configurable. */
 
-#define	DM_EVENT_FIFO_CLIENT	DEFAULT_DM_RUN_DIR "/dmeventd-client"
+#define	DM_EVENT_DAEMON		"/sbin/dmeventd"
-#define	DM_EVENT_FIFO_SERVER	DEFAULT_DM_RUN_DIR "/dmeventd-server"
+#define DM_EVENT_LOCKFILE	"/var/lock/dmeventd"
+#define	DM_EVENT_FIFO_CLIENT	"/var/run/dmeventd-client"
+#define	DM_EVENT_FIFO_SERVER	"/var/run/dmeventd-server"
+#define DM_EVENT_PIDFILE	"/var/run/dmeventd.pid"
 
 #define DM_EVENT_DEFAULT_TIMEOUT 10
 
@@ -32,9 +35,6 @@ enum dm_event_command {
 	DM_EVENT_CMD_SET_TIMEOUT,
 	DM_EVENT_CMD_GET_TIMEOUT,
 	DM_EVENT_CMD_HELLO,
-	DM_EVENT_CMD_DIE,
-	DM_EVENT_CMD_GET_STATUS,
-	DM_EVENT_CMD_GET_PARAMETERS,
 };
 
 /* Message passed between client and daemon. */
@@ -56,21 +56,11 @@ struct dm_event_fifos {
 
 /*      EXIT_SUCCESS             0 -- stdlib.h */
 /*      EXIT_FAILURE             1 -- stdlib.h */
-/*      EXIT_LOCKFILE_INUSE      2 -- obsoleted */
+#define EXIT_LOCKFILE_INUSE      2
 #define EXIT_DESC_CLOSE_FAILURE  3
 #define EXIT_DESC_OPEN_FAILURE   4
-/*      EXIT_OPEN_PID_FAILURE    5 -- obsoleted */
+#define EXIT_OPEN_PID_FAILURE    5
 #define EXIT_FIFO_FAILURE        6
 #define EXIT_CHDIR_FAILURE       7
 
-/* Implemented in libdevmapper-event.c, but not part of public API. */
-// FIXME  misuse of bitmask as enum
-int daemon_talk(struct dm_event_fifos *fifos,
-		struct dm_event_daemon_message *msg, int cmd,
-		const char *dso_name, const char *dev_name,
-		enum dm_event_mask evmask, uint32_t timeout);
-int init_fifos(struct dm_event_fifos *fifos);
-void fini_fifos(struct dm_event_fifos *fifos);
-int dm_event_get_version(struct dm_event_fifos *fifos, int *version);
-
 #endif /* __DMEVENTD_DOT_H__ */

daemons/dmeventd/libdevmapper-event.c

@@ -20,6 +20,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <stdio.h>
+#include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/file.h>
@@ -34,8 +35,6 @@ static int _sequence_nr = 0;
 struct dm_event_handler {
 	char *dso;
 
-	char *dmeventd_path;
-
 	char *dev_name;
 
 	char *uuid;
@@ -48,20 +47,25 @@ struct dm_event_handler {
 
 static void _dm_event_handler_clear_dev_info(struct dm_event_handler *dmevh)
 {
-	dm_free(dmevh->dev_name);
+	if (dmevh->dev_name)
-	dm_free(dmevh->uuid);
+		dm_free(dmevh->dev_name);
+	if (dmevh->uuid)
+		dm_free(dmevh->uuid);
 	dmevh->dev_name = dmevh->uuid = NULL;
 	dmevh->major = dmevh->minor = 0;
 }
 
 struct dm_event_handler *dm_event_handler_create(void)
 {
-	struct dm_event_handler *dmevh;
+	struct dm_event_handler *dmevh = NULL;
 
-	if (!(dmevh = dm_zalloc(sizeof(*dmevh)))) {
+	if (!(dmevh = dm_malloc(sizeof(*dmevh))))
-		log_error("Failed to allocate event handler.");
 		return NULL;
-	}
+
+	dmevh->dso = dmevh->dev_name = dmevh->uuid = NULL;
+	dmevh->major = dmevh->minor = 0;
+	dmevh->mask = 0;
+	dmevh->timeout = 0;
 
 	return dmevh;
 }
@@ -69,32 +73,20 @@ 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);
-	dm_free(dmevh->dso);
+	if (dmevh->dso)
-	dm_free(dmevh->dmeventd_path);
+		dm_free(dmevh->dso);
 	dm_free(dmevh);
 }
 
-int dm_event_handler_set_dmeventd_path(struct dm_event_handler *dmevh, const char *dmeventd_path)
-{
-	if (!dmeventd_path) /* noop */
-		return 0;
-
-	dm_free(dmevh->dmeventd_path);
-
-	if (!(dmevh->dmeventd_path = dm_strdup(dmeventd_path)))
-		return -ENOMEM;
-
-	return 0;
-}
-
 int dm_event_handler_set_dso(struct dm_event_handler *dmevh, const char *path)
 {
 	if (!path) /* noop */
 		return 0;
+	if (dmevh->dso)
+		dm_free(dmevh->dso);
 
-	dm_free(dmevh->dso);
+	dmevh->dso = dm_strdup(path);
-
+	if (!dmevh->dso)
-	if (!(dmevh->dso = dm_strdup(path)))
 		return -ENOMEM;
 
 	return 0;
@@ -107,9 +99,9 @@ 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 = dm_strdup(dev_name)))
+	dmevh->dev_name = dm_strdup(dev_name);
+	if (!dmevh->dev_name)
 		return -ENOMEM;
-
 	return 0;
 }
 
@@ -120,9 +112,9 @@ int dm_event_handler_set_uuid(struct dm_event_handler *dmevh, const char *uuid)
 
 	_dm_event_handler_clear_dev_info(dmevh);
 
-	if (!(dmevh->uuid = dm_strdup(uuid)))
+	dmevh->uuid = dm_strdup(uuid);
+	if (!dmevh->dev_name)
 		return -ENOMEM;
-
 	return 0;
 }
 
@@ -222,25 +214,23 @@ static int _daemon_read(struct dm_event_fifos *fifos,
 	unsigned bytes = 0;
 	int ret, i;
 	fd_set fds;
+	struct timeval tval = { 0, 0 };
 	size_t size = 2 * sizeof(uint32_t);	/* status + size */
-	uint32_t *header = alloca(size);
+	char *buf = alloca(size);
-	char *buf = (char *)header;
+	int header = 1;
 
 	while (bytes < size) {
 		for (i = 0, ret = 0; (i < 20) && (ret < 1); i++) {
 			/* Watch daemon read FIFO for input. */
-			struct timeval tval = { .tv_sec = 1 };
 			FD_ZERO(&fds);
 			FD_SET(fifos->server, &fds);
-			ret = select(fifos->server + 1, &fds, NULL, NULL, &tval);
+			tval.tv_sec = 1;
+			ret = select(fifos->server + 1, &fds, NULL, NULL,
+				     &tval);
 			if (ret < 0 && errno != EINTR) {
 				log_error("Unable to read from event server");
 				return 0;
 			}
-			if ((ret == 0) && (i > 4) && !bytes) {
-				log_error("No input from event server.");
-				return 0;
-			}
 		}
 		if (ret < 1) {
 			log_error("Unable to read from event server.");
@@ -258,9 +248,9 @@ static int _daemon_read(struct dm_event_fifos *fifos,
 		}
 
 		bytes += ret;
-		if (header && (bytes == 2 * sizeof(uint32_t))) {
+		if (bytes == 2 * sizeof(uint32_t) && header) {
-			msg->cmd = ntohl(header[0]);
+			msg->cmd = ntohl(*((uint32_t *)buf));
-			msg->size = ntohl(header[1]);
+			msg->size = ntohl(*((uint32_t *)buf + 1));
 			buf = msg->data = dm_malloc(msg->size);
 			size = msg->size;
 			bytes = 0;
@@ -269,9 +259,11 @@ static int _daemon_read(struct dm_event_fifos *fifos,
 	}
 
 	if (bytes != size) {
-		dm_free(msg->data);
+		if (msg->data)
+			dm_free(msg->data);
 		msg->data = NULL;
 	}
+
 	return bytes == size;
 }
 
@@ -279,39 +271,32 @@ static int _daemon_read(struct dm_event_fifos *fifos,
 static int _daemon_write(struct dm_event_fifos *fifos,
 			 struct dm_event_daemon_message *msg)
 {
-	int ret;
+	unsigned bytes = 0;
+	int ret = 0;
 	fd_set fds;
-	size_t bytes = 0;
-	size_t size = 2 * sizeof(uint32_t) + msg->size;
-	uint32_t *header = alloca(size);
-	char *buf = (char *)header;
-	char drainbuf[128];
 
-	header[0] = htonl(msg->cmd);
+	size_t size = 2 * sizeof(uint32_t) + msg->size;
-	header[1] = htonl(msg->size);
+	char *buf = alloca(size);
+	char drainbuf[128];
+	struct timeval tval = { 0, 0 };
+
+	*((uint32_t *)buf) = htonl(msg->cmd);
+	*((uint32_t *)buf + 1) = htonl(msg->size);
 	memcpy(buf + 2 * sizeof(uint32_t), msg->data, msg->size);
 
 	/* drain the answer fifo */
 	while (1) {
-		struct timeval tval = { .tv_usec = 100 };
 		FD_ZERO(&fds);
 		FD_SET(fifos->server, &fds);
+		tval.tv_usec = 100;
 		ret = select(fifos->server + 1, &fds, NULL, NULL, &tval);
-		if (ret < 0) {
+		if ((ret < 0) && (errno != EINTR)) {
-			if (errno == EINTR)
-				continue;
 			log_error("Unable to talk to event daemon");
 			return 0;
 		}
 		if (ret == 0)
 			break;
-		ret = read(fifos->server, drainbuf, sizeof(drainbuf));
+		read(fifos->server, drainbuf, 127);
-		if (ret < 0) {
-			if ((errno == EINTR) || (errno == EAGAIN))
-				continue;
-			log_error("Unable to talk to event daemon");
-			return 0;
-		}
 	}
 
 	while (bytes < size) {
@@ -326,7 +311,8 @@ static int _daemon_write(struct dm_event_fifos *fifos,
 			}
 		} while (ret < 1);
 
-		ret = write(fifos->client, buf + bytes, size - bytes);
+		ret = write(fifos->client, ((char *) buf) + bytes,
+			    size - bytes);
 		if (ret < 0) {
 			if ((errno == EINTR) || (errno == EAGAIN))
 				continue;
@@ -342,11 +328,14 @@ static int _daemon_write(struct dm_event_fifos *fifos,
 	return bytes == size;
 }
 
-int daemon_talk(struct dm_event_fifos *fifos,
+static int _daemon_talk(struct dm_event_fifos *fifos,
-		struct dm_event_daemon_message *msg, int cmd,
+			struct dm_event_daemon_message *msg, int cmd,
-		const char *dso_name, const char *dev_name,
+			const char *dso_name, const char *dev_name,
-		enum dm_event_mask evmask, uint32_t timeout)
+			enum dm_event_mask evmask, uint32_t timeout)
 {
+	const char *dso = dso_name ? dso_name : "";
+	const char *dev = dev_name ? dev_name : "";
+	const char *fmt = "%d:%d %s %s %u %" PRIu32;
 	int msg_size;
 	memset(msg, 0, sizeof(*msg));
 
@@ -354,17 +343,14 @@ int daemon_talk(struct dm_event_fifos *fifos,
 	 * Set command and pack the arguments
 	 * into ASCII message string.
 	 */
-	if ((msg_size =
+	msg->cmd = cmd;
-	     ((cmd == DM_EVENT_CMD_HELLO) ?
+	if (cmd == DM_EVENT_CMD_HELLO)
-	      dm_asprintf(&(msg->data), "%d:%d HELLO", getpid(), _sequence_nr) :
+		fmt = "%d:%d HELLO";
-	      dm_asprintf(&(msg->data), "%d:%d %s %s %u %" PRIu32,
+	if ((msg_size = dm_asprintf(&(msg->data), fmt, getpid(), _sequence_nr,
-			  getpid(), _sequence_nr,
+				    dso, dev, evmask, timeout)) < 0) {
-			  dso_name ? : "-", dev_name ? : "-", evmask, timeout)))
-	    < 0) {
 		log_error("_daemon_talk: message allocation failed");
 		return -ENOMEM;
 	}
-	msg->cmd = cmd;
 	msg->size = msg_size;
 
 	/*
@@ -374,13 +360,15 @@ int daemon_talk(struct dm_event_fifos *fifos,
 	if (!_daemon_write(fifos, msg)) {
 		stack;
 		dm_free(msg->data);
-		msg->data = NULL;
+		msg->data = 0;
 		return -EIO;
 	}
 
 	do {
-		dm_free(msg->data);
+
-		msg->data = NULL;
+		if (msg->data)
+			dm_free(msg->data);
+		msg->data = 0;
 
 		if (!_daemon_read(fifos, msg)) {
 			stack;
@@ -405,13 +393,11 @@ int daemon_talk(struct dm_event_fifos *fifos,
  *
  * Returns: 1 on success, 0 otherwise
  */
-static int _start_daemon(char *dmeventd_path, struct dm_event_fifos *fifos)
+static int _start_daemon(struct dm_event_fifos *fifos)
 {
 	int pid, ret = 0;
 	int status;
 	struct stat statbuf;
-	char default_dmeventd_path[] = DMEVENTD_PATH;
-	char *args[] = { dmeventd_path ? : default_dmeventd_path, NULL };
 
 	if (stat(fifos->client_path, &statbuf))
 		goto start_server;
@@ -425,32 +411,28 @@ static int _start_daemon(char *dmeventd_path, struct dm_event_fifos *fifos)
 	fifos->client = open(fifos->client_path, O_WRONLY | O_NONBLOCK);
 	if (fifos->client >= 0) {
 		/* server is running and listening */
-		if (close(fifos->client))
+
-			log_sys_debug("close", fifos->client_path);
+		close(fifos->client);
 		return 1;
 	} else if (errno != ENXIO) {
 		/* problem */
-		log_sys_error("open", fifos->client_path);
+
+		log_error("%s: Can't open client fifo %s: %s",
+			  __func__, fifos->client_path, strerror(errno));
+		stack;
 		return 0;
 	}
 
       start_server:
 	/* server is not running */
-
-	if ((args[0][0] == '/') && stat(args[0], &statbuf)) {
-		log_sys_error("stat", args[0]);
-		return 0;
-	}
-
 	pid = fork();
 
 	if (pid < 0)
-		log_sys_error("fork", "");
+		log_error("Unable to fork.");
 
 	else if (!pid) {
-		execvp(args[0], args);
+		execvp(DMEVENTD_PATH, NULL);
-		log_error("Unable to exec dmeventd: %s", strerror(errno));
+		exit(EXIT_FAILURE);
-		_exit(EXIT_FAILURE);
 	} else {
 		if (waitpid(pid, &status, 0) < 0)
 			log_error("Unable to start dmeventd: %s",
@@ -464,59 +446,56 @@ static int _start_daemon(char *dmeventd_path, struct dm_event_fifos *fifos)
 	return ret;
 }
 
-int init_fifos(struct dm_event_fifos *fifos)
+/* Initialize client. */
+static int _init_client(struct dm_event_fifos *fifos)
 {
 	/* FIXME? Is fifo the most suitable method? Why not share
 	   comms/daemon code with something else e.g. multipath? */
 
+	/* init fifos */
+	memset(fifos, 0, sizeof(*fifos));
+	fifos->client_path = DM_EVENT_FIFO_CLIENT;
+	fifos->server_path = DM_EVENT_FIFO_SERVER;
+
+	if (!_start_daemon(fifos)) {
+		stack;
+		return 0;
+	}
+
 	/* Open the fifo used to read from the daemon. */
 	if ((fifos->server = open(fifos->server_path, O_RDWR)) < 0) {
-		log_sys_error("open", fifos->server_path);
+		log_error("%s: open server fifo %s",
+			  __func__, fifos->server_path);
+		stack;
 		return 0;
 	}
 
 	/* Lock out anyone else trying to do communication with the daemon. */
 	if (flock(fifos->server, LOCK_EX) < 0) {
-		log_sys_error("flock", fifos->server_path);
+		log_error("%s: flock %s", __func__, fifos->server_path);
-		goto bad;
+		close(fifos->server);
+		return 0;
 	}
 
 /*	if ((fifos->client = open(fifos->client_path, O_WRONLY | O_NONBLOCK)) < 0) {*/
 	if ((fifos->client = open(fifos->client_path, O_RDWR | O_NONBLOCK)) < 0) {
-		log_sys_error("open", fifos->client_path);
+		log_error("%s: Can't open client fifo %s: %s",
-		goto bad;
+			  __func__, fifos->client_path, strerror(errno));
+		close(fifos->server);
+		stack;
+		return 0;
 	}
 
 	return 1;
-bad:
-	if (close(fifos->server))
-		log_sys_debug("close", fifos->server_path);
-	fifos->server = -1;
-
-	return 0;
 }
 
-/* Initialize client. */
+static void _dtr_client(struct dm_event_fifos *fifos)
-static int _init_client(char *dmeventd_path, struct dm_event_fifos *fifos)
 {
-	if (!_start_daemon(dmeventd_path, fifos))
+	if (flock(fifos->server, LOCK_UN))
-		return_0;
+		log_error("flock unlock %s", fifos->server_path);
 
-	return init_fifos(fifos);
+	close(fifos->client);
-}
+	close(fifos->server);
-
-void fini_fifos(struct dm_event_fifos *fifos)
-{
-	if (fifos->client >= 0 && close(fifos->client))
-		log_sys_debug("close", fifos->client_path);
-
-	if (fifos->server >= 0) {
-		if (flock(fifos->server, LOCK_UN))
-			log_sys_debug("flock unlock", fifos->server_path);
-
-		if (close(fifos->server))
-			log_sys_debug("close", fifos->server_path);
-	}
 }
 
 /* Get uuid of a device */
@@ -530,78 +509,62 @@ static struct dm_task *_get_device_info(const struct dm_event_handler *dmevh)
 		return NULL;
 	}
 
-	if (dmevh->uuid) {
+	if (dmevh->uuid)
-		if (!dm_task_set_uuid(dmt, dmevh->uuid))
+		dm_task_set_uuid(dmt, dmevh->uuid);
-			goto_bad;
+	else if (dmevh->dev_name)
-	} else if (dmevh->dev_name) {
+		dm_task_set_name(dmt, dmevh->dev_name);
-		if (!dm_task_set_name(dmt, dmevh->dev_name))
+	else if (dmevh->major && dmevh->minor) {
-			goto_bad;
+		dm_task_set_major(dmt, dmevh->major);
-	} else if (dmevh->major && dmevh->minor) {
+		dm_task_set_minor(dmt, dmevh->minor);
-		if (!dm_task_set_major(dmt, dmevh->major) ||
+        }
-		    !dm_task_set_minor(dmt, dmevh->minor))
-			goto_bad;
-	}
 
 	/* FIXME Add name or uuid or devno to messages */
 	if (!dm_task_run(dmt)) {
 		log_error("_get_device_info: dm_task_run() failed");
-		goto bad;
+		goto failed;
 	}
 
 	if (!dm_task_get_info(dmt, &info)) {
 		log_error("_get_device_info: failed to get info for device");
-		goto bad;
+		goto failed;
 	}
 
 	if (!info.exists) {
-		log_error("_get_device_info: %s%s%s%.0d%s%.0d%s%s: device not found",
+		log_error("_get_device_info: device not found");
-			  dmevh->uuid ? : "",
+		goto failed;
-			  (!dmevh->uuid && dmevh->dev_name) ? dmevh->dev_name : "",
-			  (!dmevh->uuid && !dmevh->dev_name && dmevh->major > 0) ? "(" : "",
-			  (!dmevh->uuid && !dmevh->dev_name && dmevh->major > 0) ? dmevh->major : 0,
-			  (!dmevh->uuid && !dmevh->dev_name && dmevh->major > 0) ? ":" : "",
-			  (!dmevh->uuid && !dmevh->dev_name && dmevh->minor > 0) ? dmevh->minor : 0,
-			  (!dmevh->uuid && !dmevh->dev_name && dmevh->major > 0) && dmevh->minor == 0 ? "0" : "",
-			  (!dmevh->uuid && !dmevh->dev_name && dmevh->major > 0) ? ") " : "");
-		goto bad;
 	}
 
 	return dmt;
 
-      bad:
+failed:
 	dm_task_destroy(dmt);
 	return NULL;
 }
 
 /* Handle the event (de)registration call and return negative error codes. */
-static int _do_event(int cmd, char *dmeventd_path, struct dm_event_daemon_message *msg,
+static int _do_event(int cmd, struct dm_event_daemon_message *msg,
 		     const char *dso_name, const char *dev_name,
 		     enum dm_event_mask evmask, uint32_t timeout)
 {
 	int ret;
-	struct dm_event_fifos fifos = {
+	struct dm_event_fifos fifos;
-		.server = -1,
-		.client = -1,
-		/* FIXME Make these either configurable or depend directly on dmeventd_path */
-		.client_path = DM_EVENT_FIFO_CLIENT,
-		.server_path = DM_EVENT_FIFO_SERVER
-	};
 
-	if (!_init_client(dmeventd_path, &fifos)) {
+	if (!_init_client(&fifos)) {
 		stack;
 		return -ESRCH;
 	}
 
-	ret = daemon_talk(&fifos, msg, DM_EVENT_CMD_HELLO, NULL, NULL, 0, 0);
+	ret = _daemon_talk(&fifos, msg, DM_EVENT_CMD_HELLO, 0, 0, 0, 0);
 
-	dm_free(msg->data);
+	if (msg->data)
+		dm_free(msg->data);
 	msg->data = 0;
 
 	if (!ret)
-		ret = daemon_talk(&fifos, msg, cmd, dso_name, dev_name, evmask, timeout);
+		ret = _daemon_talk(&fifos, msg, cmd, dso_name, dev_name, evmask, timeout);
 
 	/* what is the opposite of init? */
-	fini_fifos(&fifos);
+	_dtr_client(&fifos);
 
 	return ret;
 }
@@ -612,21 +575,16 @@ int dm_event_register_handler(const struct dm_event_handler *dmevh)
 	int ret = 1, err;
 	const char *uuid;
 	struct dm_task *dmt;
-	struct dm_event_daemon_message msg = { 0 };
+	struct dm_event_daemon_message msg = { 0, 0, NULL };
 
-	if (!(dmt = _get_device_info(dmevh)))
+	if (!(dmt = _get_device_info(dmevh))) {
-		return_0;
+		stack;
+		return 0;
+	}
 
 	uuid = dm_task_get_uuid(dmt);
 
-	if (!strstr(dmevh->dso, "libdevmapper-event-lvm2thin.so") &&
+	if ((err = _do_event(DM_EVENT_CMD_REGISTER_FOR_EVENT, &msg,
-	    !strstr(dmevh->dso, "libdevmapper-event-lvm2snapshot.so") &&
-	    !strstr(dmevh->dso, "libdevmapper-event-lvm2mirror.so") &&
-	    !strstr(dmevh->dso, "libdevmapper-event-lvm2raid.so"))
-		log_warn("WARNING: %s: dmeventd plugins are deprecated", dmevh->dso);
-
-
-	if ((err = _do_event(DM_EVENT_CMD_REGISTER_FOR_EVENT, dmevh->dmeventd_path, &msg,
 			     dmevh->dso, uuid, dmevh->mask, dmevh->timeout)) < 0) {
 		log_error("%s: event registration failed: %s",
 			  dm_task_get_name(dmt),
@@ -634,7 +592,8 @@ int dm_event_register_handler(const struct dm_event_handler *dmevh)
 		ret = 0;
 	}
 
-	dm_free(msg.data);
+	if (msg.data)
+		dm_free(msg.data);
 
 	dm_task_destroy(dmt);
 
@@ -646,14 +605,16 @@ int dm_event_unregister_handler(const struct dm_event_handler *dmevh)
 	int ret = 1, err;
 	const char *uuid;
 	struct dm_task *dmt;
-	struct dm_event_daemon_message msg = { 0 };
+	struct dm_event_daemon_message msg = { 0, 0, NULL };
 
-	if (!(dmt = _get_device_info(dmevh)))
+	if (!(dmt = _get_device_info(dmevh))) {
-		return_0;
+		stack;
+		return 0;
+	}
 
 	uuid = dm_task_get_uuid(dmt);
 
-	if ((err = _do_event(DM_EVENT_CMD_UNREGISTER_FOR_EVENT, dmevh->dmeventd_path, &msg,
+	if ((err = _do_event(DM_EVENT_CMD_UNREGISTER_FOR_EVENT, &msg,
 			    dmevh->dso, uuid, dmevh->mask, dmevh->timeout)) < 0) {
 		log_error("%s: event deregistration failed: %s",
 			  dm_task_get_name(dmt),
@@ -661,7 +622,8 @@ int dm_event_unregister_handler(const struct dm_event_handler *dmevh)
 		ret = 0;
 	}
 
-	dm_free(msg.data);
+	if (msg.data)
+		dm_free(msg.data);
 
 	dm_task_destroy(dmt);
 
@@ -690,18 +652,20 @@ static char *_fetch_string(char **src, const int delimiter)
 static int _parse_message(struct dm_event_daemon_message *msg, char **dso_name,
 			 char **uuid, enum dm_event_mask *evmask)
 {
-	char *id;
+	char *id = NULL;
 	char *p = msg->data;
 
 	if ((id = _fetch_string(&p, ' ')) &&
 	    (*dso_name = _fetch_string(&p, ' ')) &&
 	    (*uuid = _fetch_string(&p, ' '))) {
 		*evmask = atoi(p);
+
 		dm_free(id);
 		return 0;
 	}
 
-	dm_free(id);
+	if (id)
+		dm_free(id);
 	return -ENOMEM;
 }
 
@@ -715,44 +679,37 @@ int dm_event_get_registered_device(struct dm_event_handler *dmevh, int next)
 	char *reply_dso = NULL, *reply_uuid = NULL;
 	enum dm_event_mask reply_mask = 0;
 	struct dm_task *dmt = NULL;
-	struct dm_event_daemon_message msg = { 0 };
+	struct dm_event_daemon_message msg = { 0, 0, NULL };
-	struct dm_info info;
 
 	if (!(dmt = _get_device_info(dmevh))) {
-		log_debug("Device does not exists (uuid=%s, name=%s, %d:%d).",
+		stack;
-			  dmevh->uuid, dmevh->dev_name,
+		return 0;
-			  dmevh->major, dmevh->minor);
-		ret = -ENODEV;
-		goto fail;
 	}
 
 	uuid = dm_task_get_uuid(dmt);
 
-	if (_do_event(next ? DM_EVENT_CMD_GET_NEXT_REGISTERED_DEVICE :
+	if (!(ret = _do_event(next ? DM_EVENT_CMD_GET_NEXT_REGISTERED_DEVICE :
-		      DM_EVENT_CMD_GET_REGISTERED_DEVICE, dmevh->dmeventd_path,
+			     DM_EVENT_CMD_GET_REGISTERED_DEVICE,
-		      &msg, dmevh->dso, uuid, dmevh->mask, 0)) {
+			      &msg, dmevh->dso, uuid, dmevh->mask, 0))) {
-		log_debug("%s: device not registered.", dm_task_get_name(dmt));
+		/* FIXME this will probably horribly break if we get
+		   ill-formatted reply */
+		ret = _parse_message(&msg, &reply_dso, &reply_uuid, &reply_mask);
+	} else {
 		ret = -ENOENT;
 		goto fail;
 	}
 
-	/* FIXME this will probably horribly break if we get
-	   ill-formatted reply */
-	ret = _parse_message(&msg, &reply_dso, &reply_uuid, &reply_mask);
-
 	dm_task_destroy(dmt);
 	dmt = NULL;
 
-	dm_free(msg.data);
+	if (msg.data) {
-	msg.data = NULL;
+		dm_free(msg.data);
-
+		msg.data = NULL;
-	_dm_event_handler_clear_dev_info(dmevh);
-	if (!reply_uuid) {
-		ret = -ENXIO; /* dmeventd probably gave us bogus uuid back */
-		goto fail;
 	}
 
-	if (!(dmevh->uuid = dm_strdup(reply_uuid))) {
+	_dm_event_handler_clear_dev_info(dmevh);
+	dmevh->uuid = dm_strdup(reply_uuid);
+	if (!dmevh->uuid) {
 		ret = -ENOMEM;
 		goto fail;
 	}
@@ -765,17 +722,23 @@ 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);
 
-	dm_free(reply_dso);
+	if (reply_dso) {
-	reply_dso = NULL;
+		dm_free(reply_dso);
+		reply_dso = NULL;
+	}
 
-	dm_free(reply_uuid);
+	if (reply_uuid) {
-	reply_uuid = NULL;
+		dm_free(reply_uuid);
+		reply_uuid = NULL;
+	}
 
-	if (!(dmevh->dev_name = dm_strdup(dm_task_get_name(dmt)))) {
+	dmevh->dev_name = dm_strdup(dm_task_get_name(dmt));
+	if (!dmevh->dev_name) {
 		ret = -ENOMEM;
 		goto fail;
 	}
 
+	struct dm_info info;
 	if (!dm_task_get_info(dmt, &info)) {
 		ret = -1;
 		goto fail;
@@ -789,45 +752,18 @@ int dm_event_get_registered_device(struct dm_event_handler *dmevh, int next)
 	return ret;
 
  fail:
-	dm_free(msg.data);
+	if (msg.data)
-	dm_free(reply_dso);
+		dm_free(msg.data);
-	dm_free(reply_uuid);
+	if (reply_dso)
+		dm_free(reply_dso);
+	if (reply_uuid)
+		dm_free(reply_uuid);
 	_dm_event_handler_clear_dev_info(dmevh);
 	if (dmt)
 		dm_task_destroy(dmt);
 	return ret;
 }
 
-/*
- * You can (and have to) call this at the stage of the protocol where
- *     daemon_talk(fifos, &msg, DM_EVENT_CMD_HELLO, NULL, NULL, 0, 0)
- *
- * would be normally sent. This call will parse the version reply from
- * dmeventd, in addition to above call. It is not safe to call this at any
- * other place in the protocol.
- *
- * This is an internal function, not exposed in the public API.
- */
-
-int dm_event_get_version(struct dm_event_fifos *fifos, int *version) {
-	char *p;
-	struct dm_event_daemon_message msg = { 0 };
-
-	if (daemon_talk(fifos, &msg, DM_EVENT_CMD_HELLO, NULL, NULL, 0, 0))
-		return 0;
-	p = msg.data;
-	*version = 0;
-
-	if (!p || !(p = strchr(p, ' '))) /* Message ID */
-		return 0;
-	if (!(p = strchr(p + 1, ' '))) /* HELLO */
-		return 0;
-	if ((p = strchr(p + 1, ' '))) /* HELLO, once more */
-		*version = atoi(p);
-
-	return 1;
-}
-
 #if 0				/* left out for now */
 
 static char *_skip_string(char *src, const int delimiter)
@@ -840,7 +776,7 @@ static char *_skip_string(char *src, const int delimiter)
 
 int dm_event_set_timeout(const char *device_path, uint32_t timeout)
 {
-	struct dm_event_daemon_message msg = { 0 };
+	struct dm_event_daemon_message msg = { 0, 0, NULL };
 
 	if (!device_exists(device_path))
 		return -ENODEV;
@@ -852,24 +788,22 @@ int dm_event_set_timeout(const char *device_path, uint32_t timeout)
 int dm_event_get_timeout(const char *device_path, uint32_t *timeout)
 {
 	int ret;
-	struct dm_event_daemon_message msg = { 0 };
+	struct dm_event_daemon_message msg = { 0, 0, NULL };
 
 	if (!device_exists(device_path))
 		return -ENODEV;
-
 	if (!(ret = _do_event(DM_EVENT_CMD_GET_TIMEOUT, &msg, NULL, device_path,
 			     0, 0))) {
 		char *p = _skip_string(msg.data, ' ');
 		if (!p) {
 			log_error("malformed reply from dmeventd '%s'\n",
 				  msg.data);
-			dm_free(msg.data);
 			return -EIO;
 		}
 		*timeout = atoi(p);
 	}
-	dm_free(msg.data);
+	if (msg.data)
-
+		dm_free(msg.data);
 	return ret;
 }
 #endif

daemons/dmeventd/libdevmapper-event.h

@@ -46,9 +46,7 @@ enum dm_event_mask {
 };
 
 #define DM_EVENT_ALL_ERRORS DM_EVENT_ERROR_MASK
-#define DM_EVENT_PROTOCOL_VERSION 2
 
-struct dm_task;
 struct dm_event_handler;
 
 struct dm_event_handler *dm_event_handler_create(void);
@@ -57,17 +55,12 @@ void dm_event_handler_destroy(struct dm_event_handler *dmevh);
 /*
  * Path of shared library to handle events.
  *
- * All of dmeventd, dso, device_name and uuid strings are duplicated so
+ * All of dso, device_name and uuid strings are duplicated, you do not
- * you do not need to keep the pointers valid after the call succeeds.
+ * need to keep the pointers valid after the call succeeds. Thes may
- * They may return -ENOMEM though.
+ * return -ENOMEM though.
  */
 int dm_event_handler_set_dso(struct dm_event_handler *dmevh, const char *path);
 
-/*
- * Path of dmeventd binary.
- */
-int dm_event_handler_set_dmeventd_path(struct dm_event_handler *dmevh, const char *dmeventd_path);
-
 /*
  * Identify the device to monitor by exactly one of device_name, uuid or
  * device number. String arguments are duplicated, see above.
@@ -83,7 +76,6 @@ void dm_event_handler_set_timeout(struct dm_event_handler *dmevh, int timeout);
 /*
  * Specify mask for events to monitor.
  */
-// FIXME  misuse of bitmask as enum
 void dm_event_handler_set_event_mask(struct dm_event_handler *dmevh,
 				     enum dm_event_mask evmask);
 
@@ -93,7 +85,6 @@ const char *dm_event_handler_get_uuid(const struct dm_event_handler *dmevh);
 int dm_event_handler_get_major(const struct dm_event_handler *dmevh);
 int dm_event_handler_get_minor(const struct dm_event_handler *dmevh);
 int dm_event_handler_get_timeout(const struct dm_event_handler *dmevh);
-// FIXME  misuse of bitmask as enum
 enum dm_event_mask dm_event_handler_get_event_mask(const struct dm_event_handler *dmevh);
 
 /* FIXME Review interface (what about this next thing?) */
@@ -107,7 +98,6 @@ int dm_event_unregister_handler(const struct dm_event_handler *dmevh);
 
 /* Prototypes for DSO interface, see dmeventd.c, struct dso_data for
    detailed descriptions. */
-// FIXME  misuse of bitmask as enum
 void process_event(struct dm_task *dmt, enum dm_event_mask evmask, void **user);
 int register_device(const char *device_name, const char *uuid, int major, int minor, void **user);
 int unregister_device(const char *device_name, const char *uuid, int major,

daemons/dmeventd/libdevmapper-event.pc.in

@@ -5,7 +5,8 @@ includedir=@includedir@
 
 Name: devmapper-event
 Description: device-mapper event library
-Version: @DM_LIB_PATCHLEVEL@
+Version: @DM_LIB_VERSION@
+Requires: devmapper
 Cflags: -I${includedir}
 Libs: -L${libdir} -ldevmapper-event
-Requires.private: devmapper
+Libs.private: -lpthread -ldl

daemons/dmeventd/plugins/Makefile.in

@@ -1,6 +1,6 @@
 #
 # Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
-# Copyright (C) 2004-2005, 2011 Red Hat, Inc. All rights reserved.
+# Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
 #
 # This file is part of LVM2.
 #
@@ -14,33 +14,9 @@
 
 srcdir = @srcdir@
 top_srcdir = @top_srcdir@
-top_builddir = @top_builddir@
+VPATH = @srcdir@
 
-SUBDIRS += lvm2
+SUBDIRS += mirror snapshot
 
-ifneq ("@MIRRORS@", "none")
+include $(top_srcdir)/make.tmpl
-  SUBDIRS += mirror
-endif
 
-ifneq ("@SNAPSHOTS@", "none")
-  SUBDIRS += snapshot
-endif
-
-ifneq ("@RAID@", "none")
-  SUBDIRS += raid
-endif
-
-ifneq ("@THIN@", "none")
-  SUBDIRS += thin
-endif
-
-ifeq ($(MAKECMDGOALS),distclean)
-  SUBDIRS = lvm2 mirror snapshot raid thin
-endif
-
-include $(top_builddir)/make.tmpl
-
-snapshot: lvm2
-mirror: lvm2
-raid: lvm2
-thin: lvm2

daemons/dmeventd/plugins/lvm2/.exported_symbols

@@ -1,7 +0,0 @@
-dmeventd_lvm2_init
-dmeventd_lvm2_exit
-dmeventd_lvm2_lock
-dmeventd_lvm2_unlock
-dmeventd_lvm2_pool
-dmeventd_lvm2_run
-dmeventd_lvm2_command

daemons/dmeventd/plugins/lvm2/Makefile.in

@@ -1,31 +0,0 @@
-#
-# Copyright (C) 2010-2014 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-
-srcdir = @srcdir@
-top_srcdir = @top_srcdir@
-top_builddir = @top_builddir@
-
-CLDFLAGS += -L$(top_builddir)/tools
-
-SOURCES = dmeventd_lvm.c
-
-LIB_SHARED = libdevmapper-event-lvm2.$(LIB_SUFFIX)
-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

@@ -1,176 +0,0 @@
-/*
- * Copyright (C) 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include "lib.h"
-#include "log.h"
-
-#include "lvm2cmd.h"
-#include "dmeventd_lvm.h"
-
-#include <pthread.h>
-#include <syslog.h>
-
-extern int dmeventd_debug;
-
-/*
- * register_device() is called first and performs initialisation.
- * Only one device may be registered or unregistered at a time.
- */
-static pthread_mutex_t _register_mutex = PTHREAD_MUTEX_INITIALIZER;
-
-/*
- * Number of active registrations.
- */
-static int _register_count = 0;
-static struct dm_pool *_mem_pool = NULL;
-static void *_lvm_handle = NULL;
-
-/*
- * Currently only one event can be processed at a time.
- */
-static pthread_mutex_t _event_mutex = PTHREAD_MUTEX_INITIALIZER;
-
-/*
- * FIXME Do not pass things directly to syslog, rather use the existing logging
- * facilities to sort logging ... however that mechanism needs to be somehow
- * configurable and we don't have that option yet
- */
-static void _temporary_log_fn(int level,
-			      const char *file __attribute__((unused)),
-			      int line __attribute__((unused)),
-			      int dm_errno __attribute__((unused)),
-			      const char *message)
-{
-	level &= ~(_LOG_STDERR | _LOG_ONCE);
-
-	switch (level) {
-	case _LOG_DEBUG:
-		if (dmeventd_debug >= 3)
-			syslog(LOG_DEBUG, "%s", message);
-		break;
-	case _LOG_INFO:
-		if (dmeventd_debug >= 2)
-			syslog(LOG_INFO, "%s", message);
-		break;
-	case _LOG_NOTICE:
-		if (dmeventd_debug >= 1)
-			syslog(LOG_NOTICE, "%s", message);
-		break;
-	case _LOG_WARN:
-		syslog(LOG_WARNING, "%s", message);
-		break;
-	case _LOG_ERR:
-		syslog(LOG_ERR, "%s", message);
-		break;
-	default:
-		syslog(LOG_CRIT, "%s", message);
-	}
-}
-
-void dmeventd_lvm2_lock(void)
-{
-	pthread_mutex_lock(&_event_mutex);
-}
-
-void dmeventd_lvm2_unlock(void)
-{
-	pthread_mutex_unlock(&_event_mutex);
-}
-
-int dmeventd_lvm2_init(void)
-{
-	int r = 0;
-
-	pthread_mutex_lock(&_register_mutex);
-
-	/*
-	 * Need some space for allocations.  1024 should be more
-	 * than enough for what we need (device mapper name splitting)
-	 */
-	if (!_mem_pool && !(_mem_pool = dm_pool_create("mirror_dso", 1024)))
-		goto out;
-
-	if (!_lvm_handle) {
-		lvm2_log_fn(_temporary_log_fn);
-		if (!(_lvm_handle = lvm2_init())) {
-			dm_pool_destroy(_mem_pool);
-			_mem_pool = NULL;
-			goto out;
-		}
-		lvm2_disable_dmeventd_monitoring(_lvm_handle);
-		/* FIXME Temporary: move to dmeventd core */
-		lvm2_run(_lvm_handle, "_memlock_inc");
-	}
-
-	_register_count++;
-	r = 1;
-
-out:
-	pthread_mutex_unlock(&_register_mutex);
-	return r;
-}
-
-void dmeventd_lvm2_exit(void)
-{
-	pthread_mutex_lock(&_register_mutex);
-
-	if (!--_register_count) {
-		lvm2_run(_lvm_handle, "_memlock_dec");
-		dm_pool_destroy(_mem_pool);
-		_mem_pool = NULL;
-		lvm2_exit(_lvm_handle);
-		_lvm_handle = NULL;
-	}
-
-	pthread_mutex_unlock(&_register_mutex);
-}
-
-struct dm_pool *dmeventd_lvm2_pool(void)
-{
-	return _mem_pool;
-}
-
-int dmeventd_lvm2_run(const char *cmdline)
-{
-	return (lvm2_run(_lvm_handle, cmdline) == LVM2_COMMAND_SUCCEEDED);
-}
-
-int dmeventd_lvm2_command(struct dm_pool *mem, char *buffer, size_t size,
-			  const char *cmd, const char *device)
-{
-	char *vg = NULL, *lv = NULL, *layer;
-	int r;
-
-	if (!dm_split_lvm_name(mem, device, &vg, &lv, &layer)) {
-		syslog(LOG_ERR, "Unable to determine VG name from %s.\n",
-		       device);
-		return 0;
-	}
-
-	/* strip off the mirror component designations */
-	if ((layer = strstr(lv, "_mimagetmp")) ||
-	    (layer = strstr(lv, "_mlog")))
-		*layer = '\0';
-
-	r = dm_snprintf(buffer, size, "%s %s/%s", cmd, vg, lv);
-
-	dm_pool_free(mem, vg);
-
-	if (r < 0) {
-		syslog(LOG_ERR, "Unable to form LVM command. (too long).\n");
-		return 0;
-	}
-
-	return 1;
-}

daemons/dmeventd/plugins/lvm2/dmeventd_lvm.h

@@ -1,42 +0,0 @@
-/*
- * Copyright (C) 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-/*
- * Wrappers around liblvm2cmd functions for dmeventd plug-ins.
- *
- * liblvm2cmd is not thread-safe so the locking in this library helps dmeventd
- * threads to co-operate in sharing a single instance.
- *
- * FIXME Either support this properly as a generic liblvm2cmd wrapper or make
- * liblvm2cmd thread-safe so this can go away.
- */
-
-#ifndef _DMEVENTD_LVMWRAP_H
-#define _DMEVENTD_LVMWRAP_H
-
-struct dm_pool;
-
-int dmeventd_lvm2_init(void);
-void dmeventd_lvm2_exit(void);
-int dmeventd_lvm2_run(const char *cmdline);
-
-void dmeventd_lvm2_lock(void);
-void dmeventd_lvm2_unlock(void);
-
-struct dm_pool *dmeventd_lvm2_pool(void);
-
-int dmeventd_lvm2_command(struct dm_pool *mem, char *buffer, size_t size,
-			  const char *cmd, const char *device);
-
-#endif /* _DMEVENTD_LVMWRAP_H */

daemons/dmeventd/plugins/mirror/Makefile.in

@@ -1,6 +1,6 @@
 #
 # Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
-# Copyright (C) 2004-2005, 2008-2014 Red Hat, Inc. All rights reserved.
+# Copyright (C) 2004-2005, 2008 Red Hat, Inc. All rights reserved.
 #
 # This file is part of LVM2.
 #
@@ -14,24 +14,24 @@
 
 srcdir = @srcdir@
 top_srcdir = @top_srcdir@
-top_builddir = @top_builddir@
+VPATH = @srcdir@
 
-INCLUDES += -I$(top_srcdir)/daemons/dmeventd/plugins/lvm2
+INCLUDES += -I${top_srcdir}/tools
-CLDFLAGS += -L$(top_builddir)/daemons/dmeventd/plugins/lvm2
+CLDFLAGS += -L${top_srcdir}/tools -ldevmapper @LVM2CMD_LIB@
 
 SOURCES = dmeventd_mirror.c
 
-LIB_NAME = libdevmapper-event-lvm2mirror
+ifeq ("@LIB_SUFFIX@","dylib")
-LIB_SHARED = $(LIB_NAME).$(LIB_SUFFIX)
+  LIB_SHARED = libdevmapper-event-lvm2mirror.dylib
+else
+  LIB_SHARED = libdevmapper-event-lvm2mirror.so
+endif
+
 LIB_VERSION = $(LIB_VERSION_LVM)
 
-CFLOW_LIST = $(SOURCES)
+include $(top_srcdir)/make.tmpl
-CFLOW_LIST_TARGET = $(LIB_NAME).cflow
 
-include $(top_builddir)/make.tmpl
+install: libdevmapper-event-lvm2mirror.$(LIB_SUFFIX)
-
+	$(INSTALL) -D $(OWNER) $(GROUP) -m 555 $(STRIP) $< \
-LIBS += -ldevmapper-event-lvm2 -ldevmapper
+		$(libdir)/$<.$(LIB_VERSION)
-
+	$(LN_S) -f $<.$(LIB_VERSION) $(libdir)/$<
-install_lvm2: install_dm_plugin
-
-install: install_lvm2

daemons/dmeventd/plugins/mirror/dmeventd_mirror.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005-2012 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2005 Red Hat, Inc. All rights reserved.
  *
  * This file is part of LVM2.
  *
@@ -12,50 +12,43 @@
  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
-#include "lib.h"
+#include "lvm2cmd.h"
 
-#include "libdevmapper-event.h"
+#include <libdevmapper.h>
-#include "dmeventd_lvm.h"
+#include <libdevmapper-event.h>
-#include "defaults.h"
+#include <errno.h>
+#include <signal.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <pthread.h>
+#include <unistd.h>
 
 #include <syslog.h> /* FIXME Replace syslog with multilog */
 /* FIXME Missing openlog? */
-/* FIXME Replace most syslogs with log_error() style messages and add complete context. */
-/* FIXME Reformat to 80 char lines. */
 
 #define ME_IGNORE    0
 #define ME_INSYNC    1
 #define ME_FAILURE   2
 
-static int _process_status_code(const char status_code, const char *dev_name,
+/*
-				const char *dev_type, int r)
+ * register_device() is called first and performs initialisation.
-{
+ * Only one device may be registered or unregistered at a time.
-	/*
+ */
-	 *    A => Alive - No failures
+static pthread_mutex_t _register_mutex = PTHREAD_MUTEX_INITIALIZER;
-	 *    D => Dead - A write failure occurred leaving mirror out-of-sync
-	 *    F => Flush failed.
-	 *    S => Sync - A sychronization failure occurred, mirror out-of-sync
-	 *    R => Read - A read failure occurred, mirror data unaffected
-	 *    U => Unclassified failure (bug)
-	 */ 
-	if (status_code == 'F') {
-		syslog(LOG_ERR, "%s device %s flush failed.",
-		       dev_type, dev_name);
-		r = ME_FAILURE;
-	} else if (status_code == 'S')
-		syslog(LOG_ERR, "%s device %s sync failed.",
-		       dev_type, dev_name);
-	else if (status_code == 'R')
-		syslog(LOG_ERR, "%s device %s read failed.",
-		       dev_type, dev_name);
-	else if (status_code != 'A') {
-		syslog(LOG_ERR, "%s device %s has failed (%c).",
-		       dev_type, dev_name, status_code);
-		r = ME_FAILURE;
-	}
 
-	return r;
+/*
-}
+ * Number of active registrations.
+ */
+static int _register_count = 0;
+
+static struct dm_pool *_mem_pool = NULL;
+static void *_lvm_handle = NULL;
+
+/*
+ * Currently only one event can be processed at a time.
+ */
+static pthread_mutex_t _event_mutex = PTHREAD_MUTEX_INITIALIZER;
 
 static int _get_mirror_event(char *params)
 {
@@ -80,8 +73,7 @@ static int _get_mirror_event(char *params)
 	if (!dm_split_words(params, 1, 0, &p))
 		goto out_parse;
 
-	if (!(num_devs = atoi(p)) ||
+	if (!(num_devs = atoi(p)))
-	    (num_devs > DEFAULT_MIRROR_MAX_IMAGES) || (num_devs < 0))
 		goto out_parse;
 	p += strlen(p) + 1;
 
@@ -90,7 +82,6 @@ static int _get_mirror_event(char *params)
 	if (!args || dm_split_words(p, num_devs + 7, 0, args) < num_devs + 5)
 		goto out_parse;
 
-	/* FIXME: Code differs from lib/mirror/mirrored.c */
 	dev_status_str = args[2 + num_devs];
 	log_argc = atoi(args[3 + num_devs]);
 	log_status_str = args[3 + num_devs + log_argc];
@@ -98,14 +89,17 @@ static int _get_mirror_event(char *params)
 
 	/* Check for bad mirror devices */
 	for (i = 0; i < num_devs; i++)
-		r = _process_status_code(dev_status_str[i], args[i],
+		if (dev_status_str[i] == 'D') {
-			i ? "Secondary mirror" : "Primary mirror", r);
+			syslog(LOG_ERR, "Mirror device, %s, has failed.\n", args[i]);
+			r = ME_FAILURE;
+		}
 
 	/* Check for bad disk log device */
-	if (log_argc > 1)
+	if (log_argc > 1 && log_status_str[0] == 'D') {
-		r = _process_status_code(log_status_str[0],
+		syslog(LOG_ERR, "Log device, %s, has failed.\n",
-					 args[2 + num_devs + log_argc],
+		       args[2 + num_devs + log_argc]);
-					 "Log", r);
+		r = ME_FAILURE;
+	}
 
 	if (r == ME_FAILURE)
 		goto out;
@@ -120,37 +114,60 @@ static int _get_mirror_event(char *params)
 		goto out_parse;
 
 out:
-	dm_free(args);
+	if (args)
+		dm_free(args);
 	return r;
-
+	
 out_parse:
-	dm_free(args);
+	if (args)
+		dm_free(args);
 	syslog(LOG_ERR, "Unable to parse mirror status string.");
 	return ME_IGNORE;
 }
 
+static void _temporary_log_fn(int level, const char *file __attribute((unused)),
+			      int line __attribute((unused)),
+			      const char *format)
+{
+	if (!strncmp(format, "WARNING: ", 9) && (level < 5))
+		syslog(LOG_CRIT, "%s", format);
+	else
+		syslog(LOG_DEBUG, "%s", format);
+}
+
 static int _remove_failed_devices(const char *device)
 {
 	int r;
 #define CMD_SIZE 256	/* FIXME Use system restriction */
 	char cmd_str[CMD_SIZE];
+	char *vg = NULL, *lv = NULL, *layer = NULL;
 
-	if (!dmeventd_lvm2_command(dmeventd_lvm2_pool(), cmd_str, sizeof(cmd_str),
+	if (strlen(device) > 200)  /* FIXME Use real restriction */
-				  "lvconvert --config devices{ignore_suspended_devices=1} "
+		return -ENAMETOOLONG;	/* FIXME These return code distinctions are not used so remove them! */
-				  "--repair --use-policies", device))
+
+	if (!dm_split_lvm_name(_mem_pool, device, &vg, &lv, &layer)) {
+		syslog(LOG_ERR, "Unable to determine VG name from %s",
+		       device);
+		return -ENOMEM;	/* FIXME Replace with generic error return - reason for failure has already got logged */
+	}
+
+	/* FIXME Is any sanity-checking required on %s? */
+	if (CMD_SIZE <= snprintf(cmd_str, CMD_SIZE, "vgreduce --config devices{ignore_suspended_devices=1} --removemissing --force %s", vg)) {
+		/* this error should be caught above, but doesn't hurt to check again */
+		syslog(LOG_ERR, "Unable to form LVM command: Device name too long");
+		dm_pool_empty(_mem_pool);  /* FIXME: not safe with multiple threads */
 		return -ENAMETOOLONG; /* FIXME Replace with generic error return - reason for failure has already got logged */
+	}
 
-	r = dmeventd_lvm2_run(cmd_str);
+	r = lvm2_run(_lvm_handle, cmd_str);
 
-	syslog(LOG_INFO, "Repair of mirrored device %s %s.", device,
+	dm_pool_empty(_mem_pool);  /* FIXME: not safe with multiple threads */
-	       (r) ? "finished successfully" : "failed");
+	return (r == 1) ? 0 : -1;
-
-	return (r) ? 0 : -1;
 }
 
 void process_event(struct dm_task *dmt,
-		   enum dm_event_mask event __attribute__((unused)),
+		   enum dm_event_mask event __attribute((unused)),
-		   void **unused __attribute__((unused)))
+		   void **unused __attribute((unused)))
 {
 	void *next = NULL;
 	uint64_t start, length;
@@ -158,19 +175,21 @@ void process_event(struct dm_task *dmt,
 	char *params;
 	const char *device = dm_task_get_name(dmt);
 
-	dmeventd_lvm2_lock();
+	if (pthread_mutex_trylock(&_event_mutex)) {
-
+		syslog(LOG_NOTICE, "Another thread is handling an event.  Waiting...");
+		pthread_mutex_lock(&_event_mutex);
+	}
 	do {
 		next = dm_get_next_target(dmt, next, &start, &length,
 					  &target_type, &params);
 
 		if (!target_type) {
-			syslog(LOG_INFO, "%s mapping lost.", device);
+			syslog(LOG_INFO, "%s mapping lost.\n", device);
 			continue;
 		}
 
 		if (strcmp(target_type, "mirror")) {
-			syslog(LOG_INFO, "%s has unmirrored portion.", device);
+			syslog(LOG_INFO, "%s has unmirrored portion.\n", device);
 			continue;
 		}
 
@@ -180,13 +199,13 @@ void process_event(struct dm_task *dmt,
 			   _part_ of the device is in sync
 			   Also, this is not an error
 			*/
-			syslog(LOG_NOTICE, "%s is now in-sync.", device);
+			syslog(LOG_NOTICE, "%s is now in-sync\n", device);
 			break;
 		case ME_FAILURE:
-			syslog(LOG_ERR, "Device failure in %s.", device);
+			syslog(LOG_ERR, "Device failure in %s\n", device);
 			if (_remove_failed_devices(device))
 				/* FIXME Why are all the error return codes unused? Get rid of them? */
-				syslog(LOG_ERR, "Failed to remove faulty devices in %s.",
+				syslog(LOG_ERR, "Failed to remove faulty devices in %s\n",
 				       device);
 			/* Should check before warning user that device is now linear
 			else
@@ -198,36 +217,73 @@ void process_event(struct dm_task *dmt,
 			break;
 		default:
 			/* FIXME Provide value then! */
-			syslog(LOG_INFO, "Unknown event received.");
+			syslog(LOG_INFO, "Unknown event received.\n");
 		}
 	} while (next);
 
-	dmeventd_lvm2_unlock();
+	pthread_mutex_unlock(&_event_mutex);
 }
 
 int register_device(const char *device,
-		    const char *uuid __attribute__((unused)),
+		    const char *uuid __attribute((unused)),
-		    int major __attribute__((unused)),
+		    int major __attribute((unused)),
-		    int minor __attribute__((unused)),
+		    int minor __attribute((unused)),
-		    void **unused __attribute__((unused)))
+		    void **unused __attribute((unused)))
 {
-	if (!dmeventd_lvm2_init())
+	int r = 0;
-		return 0;
 
-	syslog(LOG_INFO, "Monitoring mirror device %s for events.", device);
+	pthread_mutex_lock(&_register_mutex);
 
-	return 1;
+	syslog(LOG_INFO, "Monitoring mirror device %s for events\n", device);
+
+	/*
+	 * Need some space for allocations.  1024 should be more
+	 * than enough for what we need (device mapper name splitting)
+	 */
+	if (!_mem_pool && !(_mem_pool = dm_pool_create("mirror_dso", 1024)))
+		goto out;
+
+	if (!_lvm_handle) {
+		lvm2_log_fn(_temporary_log_fn);
+		if (!(_lvm_handle = lvm2_init())) {
+			dm_pool_destroy(_mem_pool);
+			_mem_pool = NULL;
+			goto out;
+		}
+		lvm2_log_level(_lvm_handle, LVM2_LOG_SUPPRESS);
+		/* FIXME Temporary: move to dmeventd core */
+		lvm2_run(_lvm_handle, "_memlock_inc");
+	}
+
+	_register_count++;
+	r = 1;
+
+out:
+	pthread_mutex_unlock(&_register_mutex);
+
+	return r;
 }
 
 int unregister_device(const char *device,
-		      const char *uuid __attribute__((unused)),
+		      const char *uuid __attribute((unused)),
-		      int major __attribute__((unused)),
+		      int major __attribute((unused)),
-		      int minor __attribute__((unused)),
+		      int minor __attribute((unused)),
-		      void **unused __attribute__((unused)))
+		      void **unused __attribute((unused)))
 {
-	syslog(LOG_INFO, "No longer monitoring mirror device %s for events.",
+	pthread_mutex_lock(&_register_mutex);
+
+	syslog(LOG_INFO, "No longer monitoring mirror device %s for events\n",
 	       device);
-	dmeventd_lvm2_exit();
+
+	if (!--_register_count) {
+		dm_pool_destroy(_mem_pool);
+		_mem_pool = NULL;
+		lvm2_run(_lvm_handle, "_memlock_dec");
+		lvm2_exit(_lvm_handle);
+		_lvm_handle = NULL;
+	}
+
+	pthread_mutex_unlock(&_register_mutex);
 
 	return 1;
 }

daemons/dmeventd/plugins/raid/.exported_symbols

@@ -1,3 +0,0 @@
-process_event
-register_device
-unregister_device

daemons/dmeventd/plugins/raid/Makefile.in

@@ -1,36 +0,0 @@
-#
-# Copyright (C) 2011-2014 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-
-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
-
-SOURCES = dmeventd_raid.c
-
-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

@@ -1,180 +0,0 @@
-/*
- * Copyright (C) 2005-2011 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 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include "lib.h"
-
-#include "libdevmapper-event.h"
-#include "dmeventd_lvm.h"
-
-#include <syslog.h> /* FIXME Replace syslog with multilog */
-/* FIXME Missing openlog? */
-/* FIXME Replace most syslogs with log_error() style messages and add complete context. */
-/* FIXME Reformat to 80 char lines. */
-
-/*
- * run_repair is a close copy to
- * plugins/mirror/dmeventd_mirror.c:_remove_failed_devices()
- */
-static int run_repair(const char *device)
-{
-	int r;
-#define CMD_SIZE 256	/* FIXME Use system restriction */
-	char cmd_str[CMD_SIZE];
-
-	if (!dmeventd_lvm2_command(dmeventd_lvm2_pool(), cmd_str, sizeof(cmd_str),
-				  "lvscan --cache", device))
-		return -1;
-
-	r = dmeventd_lvm2_run(cmd_str);
-
-	if (!r)
-		syslog(LOG_INFO, "Re-scan of RAID device %s failed.", device);
-
-	if (!dmeventd_lvm2_command(dmeventd_lvm2_pool(), cmd_str, sizeof(cmd_str),
-				  "lvconvert --config devices{ignore_suspended_devices=1} "
-				  "--repair --use-policies", device))
-		return -1;
-
-	/* if repair goes OK, report success even if lvscan has failed */
-	r = dmeventd_lvm2_run(cmd_str);
-
-	if (!r)
-		syslog(LOG_INFO, "Repair of RAID device %s failed.", device);
-
-	return (r) ? 0 : -1;
-}
-
-static int _process_raid_event(char *params, const char *device)
-{
-	int i, n, failure = 0;
-	char *p, *a[4];
-	char *raid_type;
-	char *num_devices;
-	char *health_chars;
-	char *resync_ratio;
-
-	/*
-	 * RAID parms:     <raid_type> <#raid_disks> \
-	 *                 <health chars> <resync ratio>
-	 */
-	if (!dm_split_words(params, 4, 0, a)) {
-		syslog(LOG_ERR, "Failed to process status line for %s\n",
-		       device);
-		return -EINVAL;
-	}
-	raid_type = a[0];
-	num_devices = a[1];
-	health_chars = a[2];
-	resync_ratio = a[3];
-
-	if (!(n = atoi(num_devices))) {
-		syslog(LOG_ERR, "Failed to parse number of devices for %s: %s",
-		       device, num_devices);
-		return -EINVAL;
-	}
-
-	for (i = 0; i < n; i++) {
-		switch (health_chars[i]) {
-		case 'A':
-			/* Device is 'A'live and well */
-		case 'a':
-			/* Device is 'a'live, but not yet in-sync */
-			break;
-		case 'D':
-			syslog(LOG_ERR,
-			       "Device #%d of %s array, %s, has failed.",
-			       i, raid_type, device);
-			failure++;
-			break;
-		default:
-			/* Unhandled character returned from kernel */
-			break;
-		}
-		if (failure)
-			return run_repair(device);
-	}
-
-	p = strstr(resync_ratio, "/");
-	if (!p) {
-		syslog(LOG_ERR, "Failed to parse resync_ratio for %s: %s",
-		       device, resync_ratio);
-		return -EINVAL;
-	}
-	p[0] = '\0';
-	syslog(LOG_INFO, "%s array, %s, is %s in-sync.",
-	       raid_type, device, strcmp(resync_ratio, p+1) ? "not" : "now");
-
-	return 0;
-}
-
-void process_event(struct dm_task *dmt,
-		   enum dm_event_mask event __attribute__((unused)),
-		   void **unused __attribute__((unused)))
-{
-	void *next = NULL;
-	uint64_t start, length;
-	char *target_type = NULL;
-	char *params;
-	const char *device = dm_task_get_name(dmt);
-
-	dmeventd_lvm2_lock();
-
-	do {
-		next = dm_get_next_target(dmt, next, &start, &length,
-					  &target_type, &params);
-
-		if (!target_type) {
-			syslog(LOG_INFO, "%s mapping lost.", device);
-			continue;
-		}
-
-		if (strcmp(target_type, "raid")) {
-			syslog(LOG_INFO, "%s has non-raid portion.", device);
-			continue;
-		}
-
-		if (_process_raid_event(params, device))
-			syslog(LOG_ERR, "Failed to process event for %s",
-			       device);
-	} while (next);
-
-	dmeventd_lvm2_unlock();
-}
-
-int register_device(const char *device,
-		    const char *uuid __attribute__((unused)),
-		    int major __attribute__((unused)),
-		    int minor __attribute__((unused)),
-		    void **unused __attribute__((unused)))
-{
-	if (!dmeventd_lvm2_init())
-		return 0;
-
-	syslog(LOG_INFO, "Monitoring RAID device %s for events.", device);
-
-	return 1;
-}
-
-int unregister_device(const char *device,
-		      const char *uuid __attribute__((unused)),
-		      int major __attribute__((unused)),
-		      int minor __attribute__((unused)),
-		      void **unused __attribute__((unused)))
-{
-	syslog(LOG_INFO, "No longer monitoring RAID device %s for events.",
-	       device);
-	dmeventd_lvm2_exit();
-
-	return 1;
-}

daemons/dmeventd/plugins/snapshot/Makefile.in

@@ -1,6 +1,6 @@
 #
 # Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
-# Copyright (C) 2004-2014 Red Hat, Inc. All rights reserved.
+# Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
 #
 # This file is part of the LVM2.
 #
@@ -14,20 +14,24 @@
 
 srcdir = @srcdir@
 top_srcdir = @top_srcdir@
-top_builddir = @top_builddir@
+VPATH = @srcdir@
 
-INCLUDES += -I$(top_srcdir)/daemons/dmeventd/plugins/lvm2
+INCLUDES += -I${top_srcdir}/tools
-CLDFLAGS += -L$(top_builddir)/daemons/dmeventd/plugins/lvm2
+CLDFLAGS += -L${top_srcdir}/tools -ldevmapper @LVM2CMD_LIB@
 
 SOURCES = dmeventd_snapshot.c
 
-LIB_SHARED = libdevmapper-event-lvm2snapshot.$(LIB_SUFFIX)
+ifeq ("@LIB_SUFFIX@","dylib")
+  LIB_SHARED = libdevmapper-event-lvm2snapshot.dylib
+else
+  LIB_SHARED = libdevmapper-event-lvm2snapshot.so
+endif
+
 LIB_VERSION = $(LIB_VERSION_LVM)
 
-include $(top_builddir)/make.tmpl
+include $(top_srcdir)/make.tmpl
 
-LIBS += -ldevmapper-event-lvm2 -ldevmapper
+install: libdevmapper-event-lvm2snapshot.$(LIB_SUFFIX)
-
+	$(INSTALL) -D $(OWNER) $(GROUP) -m 555 $(STRIP) $< \
-install_lvm2: install_dm_plugin
+		$(libdir)/$<.$(LIB_VERSION)
-
+	$(LN_S) -f $<.$(LIB_VERSION) $(libdir)/$<
-install: install_lvm2

daemons/dmeventd/plugins/snapshot/dmeventd_snapshot.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2007-2011 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2007-2008 Red Hat, Inc. All rights reserved.
  *
  * This file is part of LVM2.
  *
@@ -12,236 +12,202 @@
  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
-#include "lib.h"
+#include "libdevmapper.h"
-
 #include "libdevmapper-event.h"
-#include "dmeventd_lvm.h"
+#include "lvm2cmd.h"
+#include "lvm-string.h"
+
+#include <errno.h>
+#include <signal.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <pthread.h>
+#include <unistd.h>
 
-#include <sys/wait.h>
 #include <syslog.h> /* FIXME Replace syslog with multilog */
-#include <stdarg.h>
 /* FIXME Missing openlog? */
 
 /* First warning when snapshot is 80% full. */
 #define WARNING_THRESH 80
-/* Run a check every 5%. */
+/* Further warnings at 85%, 90% and 95% fullness. */
-#define CHECK_STEP 5
+#define WARNING_STEP 5
-/* Do not bother checking snapshots less than 50% full. */
-#define CHECK_MINIMUM 50
 
-#define UMOUNT_COMMAND "/bin/umount"
+static pthread_mutex_t _register_mutex = PTHREAD_MUTEX_INITIALIZER;
 
-struct dso_state {
+/*
-	struct dm_pool *mem;
+ * Number of active registrations.
-	int percent_check;
+ */
-	uint64_t known_size;
+static int _register_count = 0;
-	char cmd_str[1024];
+
+static struct dm_pool *_mem_pool = NULL;
+static void *_lvm_handle = NULL;
+
+struct snap_status {
+	int invalid;
+	int used;
+	int max;
 };
 
-static int _run(const char *cmd, ...)
+/*
+ * Currently only one event can be processed at a time.
+ */
+static pthread_mutex_t _event_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+static void _temporary_log_fn(int level,
+			      const char *file __attribute((unused)),
+			      int line __attribute((unused)),
+			      const char *format)
 {
-        va_list ap;
+	if (!strncmp(format, "WARNING: ", 9) && (level < 5))
-        int argc = 1; /* for argv[0], i.e. cmd */
+		syslog(LOG_CRIT, "%s", format);
-        int i = 0;
+	else
-        const char **argv;
+		syslog(LOG_DEBUG, "%s", format);
-        pid_t pid = fork();
-        int status;
-
-        if (pid == 0) { /* child */
-                va_start(ap, cmd);
-                while (va_arg(ap, const char *))
-                        ++ argc;
-                va_end(ap);
-
-                /* + 1 for the terminating NULL */
-                argv = alloca(sizeof(const char *) * (argc + 1));
-
-                argv[0] = cmd;
-                va_start(ap, cmd);
-                while ((argv[++i] = va_arg(ap, const char *)));
-                va_end(ap);
-
-                execvp(cmd, (char **)argv);
-                syslog(LOG_ERR, "Failed to execute %s: %s.\n", cmd, strerror(errno));
-                exit(127);
-        }
-
-        if (pid > 0) { /* parent */
-                if (waitpid(pid, &status, 0) != pid)
-                        return 0; /* waitpid failed */
-                if (!WIFEXITED(status) || WEXITSTATUS(status))
-                        return 0; /* the child failed */
-        }
-
-        if (pid < 0)
-                return 0; /* fork failed */
-
-        return 1; /* all good */
 }
 
-static int _extend(const char *cmd)
+/* FIXME possibly reconcile this with target_percent when we gain
+   access to regular LVM library here. */
+static void _parse_snapshot_params(char *params, struct snap_status *stat)
 {
-	return dmeventd_lvm2_run(cmd);
+	char *p;
-}
+	/*
+	 * xx/xx	-- fractions used/max
+	 * Invalid	-- snapshot invalidated
+	 * Unknown	-- status unknown
+	 */
+	stat->used = stat->max = 0;
 
-static void _umount(const char *device, int major, int minor)
+	if (!strncmp(params, "Invalid", 7)) {
-{
+		stat->invalid = 1;
-	FILE *mounts;
-	char buffer[4096];
-	char *words[3];
-	struct stat st;
-
-	if (!(mounts = fopen("/proc/mounts", "r"))) {
-		syslog(LOG_ERR, "Could not read /proc/mounts. Not umounting %s.\n", device);
 		return;
 	}
 
-	while (!feof(mounts)) {
+	/*
-		/* read a line of /proc/mounts */
+	 * When we return without setting non-zero max, the parent is
-		if (!fgets(buffer, sizeof(buffer), mounts))
+	 * responsible for reporting errors.
-			break; /* eof, likely */
+	 */
+	if (!strncmp(params, "Unknown", 7))
+		return;
 
-		/* words[0] is the mount point and words[1] is the device path */
+	if (!(p = strstr(params, "/")))
-		if (dm_split_words(buffer, 3, 0, words) < 2)
+		return;
-			continue;
 
-		/* find the major/minor of the device */
+	*p = '\0';
-		if (stat(words[0], &st))
+	p++;
-			continue; /* can't stat, skip this one */
 
-		if (S_ISBLK(st.st_mode) &&
+	stat->used = atoi(params);
-		    major(st.st_rdev) == major &&
+	stat->max = atoi(p);
-		    minor(st.st_rdev) == minor) {
-			syslog(LOG_ERR, "Unmounting invalid snapshot %s from %s.\n", device, words[1]);
-                        if (!_run(UMOUNT_COMMAND, "-fl", words[1], NULL))
-                                syslog(LOG_ERR, "Failed to umount snapshot %s from %s: %s.\n",
-                                       device, words[1], strerror(errno));
-		}
-	}
-
-	if (fclose(mounts))
-		syslog(LOG_ERR, "Failed to close /proc/mounts.\n");
 }
 
 void process_event(struct dm_task *dmt,
-		   enum dm_event_mask event __attribute__((unused)),
+		   enum dm_event_mask event __attribute((unused)),
 		   void **private)
 {
 	void *next = NULL;
 	uint64_t start, length;
 	char *target_type = NULL;
 	char *params;
-	struct dm_status_snapshot *status = NULL;
+	struct snap_status stat = { 0 };
 	const char *device = dm_task_get_name(dmt);
-	int percent;
+	int percent, *percent_warning = (int*)private;
-	struct dso_state *state = *private;
 
 	/* No longer monitoring, waiting for remove */
-	if (!state->percent_check)
+	if (!*percent_warning)
 		return;
 
-	dmeventd_lvm2_lock();
+	if (pthread_mutex_trylock(&_event_mutex)) {
+		syslog(LOG_NOTICE, "Another thread is handling an event.  Waiting...");
+		pthread_mutex_lock(&_event_mutex);
+	}
 
 	dm_get_next_target(dmt, next, &start, &length, &target_type, &params);
 	if (!target_type)
 		goto out;
 
-	if (!dm_get_status_snapshot(state->mem, params, &status))
+	_parse_snapshot_params(params, &stat);
-		goto out;
-
-	if (status->invalid) {
-		struct dm_info info;
-		if (dm_task_get_info(dmt, &info)) {
-			dmeventd_lvm2_unlock();
-			_umount(device, info.major, info.minor);
-			return;
-		} /* else; too bad, but this is best-effort thing... */
-	}
-
-	/* Snapshot size had changed. Clear the threshold. */
-	if (state->known_size != status->total_sectors) {
-		state->percent_check = CHECK_MINIMUM;
-		state->known_size = status->total_sectors;
-	}
-
 	/*
 	 * If the snapshot has been invalidated or we failed to parse
 	 * the status string. Report the full status string to syslog.
 	 */
-	if (status->invalid || !status->total_sectors) {
+	if (stat.invalid || !stat.max) {
 		syslog(LOG_ERR, "Snapshot %s changed state to: %s\n", device, params);
-		state->percent_check = 0;
+		*percent_warning = 0;
 		goto out;
 	}
 
-	percent = (int) (100 * status->used_sectors / status->total_sectors);
+	percent = 100 * stat.used / stat.max;
-	if (percent >= state->percent_check) {
+	if (percent >= *percent_warning) {
-		/* Usage has raised more than CHECK_STEP since the last
+		syslog(LOG_WARNING, "Snapshot %s is now %i%% full.\n", device, percent);
-		   time. Run actions. */
+		/* Print warning on the next multiple of WARNING_STEP. */
-		state->percent_check = (percent / CHECK_STEP) * CHECK_STEP + CHECK_STEP;
+		*percent_warning = (percent / WARNING_STEP) * WARNING_STEP + WARNING_STEP;
-
-		if (percent >= WARNING_THRESH) /* Print a warning to syslog. */
-			syslog(LOG_WARNING, "Snapshot %s is now %i%% full.\n", device, percent);
-		/* Try to extend the snapshot, in accord with user-set policies */
-		if (!_extend(state->cmd_str))
-			syslog(LOG_ERR, "Failed to extend snapshot %s.\n", device);
 	}
-
 out:
-	if (status)
+	pthread_mutex_unlock(&_event_mutex);
-		dm_pool_free(state->mem, status);
-	dmeventd_lvm2_unlock();
 }
 
 int register_device(const char *device,
-		    const char *uuid __attribute__((unused)),
+		    const char *uuid __attribute((unused)),
-		    int major __attribute__((unused)),
+		    int major __attribute((unused)),
-		    int minor __attribute__((unused)),
+		    int minor __attribute((unused)),
 		    void **private)
 {
-	struct dm_pool *statemem = NULL;
+	int r = 0;
-	struct dso_state *state;
+	int *percent_warning = (int*)private;
 
-	if (!dmeventd_lvm2_init())
+	pthread_mutex_lock(&_register_mutex);
+
+	/*
+	 * Need some space for allocations.  1024 should be more
+	 * than enough for what we need (device mapper name splitting)
+	 */
+	if (!_mem_pool && !(_mem_pool = dm_pool_create("snapshot_dso", 1024)))
 		goto out;
 
-	if (!(statemem = dm_pool_create("snapshot_state", 512)) ||
+	*percent_warning = WARNING_THRESH; /* Print warning if snapshot is full */
-	    !(state = dm_pool_zalloc(statemem, sizeof(*state))))
-		goto bad;
 
-	if (!dmeventd_lvm2_command(statemem, state->cmd_str,
+	if (!_lvm_handle) {
-				   sizeof(state->cmd_str),
+		lvm2_log_fn(_temporary_log_fn);
-				   "lvextend --use-policies", device))
+		if (!(_lvm_handle = lvm2_init())) {
-		goto bad;
+			dm_pool_destroy(_mem_pool);
-
+			_mem_pool = NULL;
-	state->mem = statemem;
+			goto out;
-	state->percent_check = CHECK_MINIMUM;
+		}
-	*private = state;
+		lvm2_log_level(_lvm_handle, LVM2_LOG_SUPPRESS);
+		/* FIXME Temporary: move to dmeventd core */
+		lvm2_run(_lvm_handle, "_memlock_inc");
+	}
 
 	syslog(LOG_INFO, "Monitoring snapshot %s\n", device);
 
-	return 1;
+	_register_count++;
-bad:
+	r = 1;
-	if (statemem)
-		dm_pool_destroy(statemem);
-	dmeventd_lvm2_exit();
-out:
-	syslog(LOG_ERR, "Failed to monitor snapshot %s.\n", device);
 
-	return 0;
+out:
+	pthread_mutex_unlock(&_register_mutex);
+
+	return r;
 }
 
 int unregister_device(const char *device,
-		      const char *uuid __attribute__((unused)),
+		      const char *uuid __attribute((unused)),
-		      int major __attribute__((unused)),
+		      int major __attribute((unused)),
-		      int minor __attribute__((unused)),
+		      int minor __attribute((unused)),
-		      void **private)
+		      void **unused __attribute((unused)))
 {
-	struct dso_state *state = *private;
+	pthread_mutex_lock(&_register_mutex);
 
-	syslog(LOG_INFO, "No longer monitoring snapshot %s\n", device);
+	syslog(LOG_INFO, "No longer monitoring snapshot %s\n",
-	dm_pool_destroy(state->mem);
+	       device);
-	dmeventd_lvm2_exit();
+
+	if (!--_register_count) {
+		dm_pool_destroy(_mem_pool);
+		_mem_pool = NULL;
+		lvm2_run(_lvm_handle, "_memlock_dec");
+		lvm2_exit(_lvm_handle);
+		_lvm_handle = NULL;
+	}
+
+	pthread_mutex_unlock(&_register_mutex);
 
 	return 1;
 }

daemons/dmeventd/plugins/thin/.exported_symbols

@@ -1,3 +0,0 @@
-process_event
-register_device
-unregister_device

daemons/dmeventd/plugins/thin/Makefile.in

@@ -1,36 +0,0 @@
-#
-# Copyright (C) 2011-2014 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-
-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
-
-SOURCES = dmeventd_thin.c
-
-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

@@ -1,401 +0,0 @@
-/*
- * Copyright (C) 2011-2013 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include "lib.h"
-
-#include "libdevmapper-event.h"
-#include "dmeventd_lvm.h"
-
-#include <sys/wait.h>
-#include <syslog.h> /* FIXME Replace syslog with multilog */
-#include <stdarg.h>
-/* FIXME Missing openlog? */
-
-/* First warning when thin is 80% full. */
-#define WARNING_THRESH 80
-/* Run a check every 5%. */
-#define CHECK_STEP 5
-/* Do not bother checking thins less than 50% full. */
-#define CHECK_MINIMUM 50
-
-#define UMOUNT_COMMAND "/bin/umount"
-
-#define THIN_DEBUG 0
-
-struct dso_state {
-	struct dm_pool *mem;
-	int metadata_percent_check;
-	int data_percent_check;
-	uint64_t known_metadata_size;
-	uint64_t known_data_size;
-	char cmd_str[1024];
-};
-
-
-/* TODO - move this mountinfo code into library to be reusable */
-#ifdef __linux__
-#  include "kdev_t.h"
-#else
-#  define MAJOR(x) major((x))
-#  define MINOR(x) minor((x))
-#  define MKDEV(x,y) makedev((x),(y))
-#endif
-
-/* Get dependencies for device, and try to find matching device */
-static int _has_deps(const char *name, int tp_major, int tp_minor, int *dev_minor)
-{
-	struct dm_task *dmt;
-	const struct dm_deps *deps;
-	struct dm_info info;
-	int major, minor;
-	int r = 0;
-
-	if (!(dmt = dm_task_create(DM_DEVICE_DEPS)))
-		return 0;
-
-	if (!dm_task_set_name(dmt, name))
-		goto out;
-
-	if (!dm_task_no_open_count(dmt))
-		goto out;
-
-	if (!dm_task_run(dmt))
-		goto out;
-
-	if (!dm_task_get_info(dmt, &info))
-		goto out;
-
-	if (!(deps = dm_task_get_deps(dmt)))
-		goto out;
-
-	if (!info.exists || deps->count != 1)
-		goto out;
-
-	major = (int) MAJOR(deps->device[0]);
-	minor = (int) MINOR(deps->device[0]);
-	if ((major != tp_major) || (minor != tp_minor))
-		goto out;
-
-	*dev_minor = info.minor;
-
-#if THIN_DEBUG
-	{
-		char dev_name[PATH_MAX];
-		if (dm_device_get_name(major, minor, 0, dev_name, sizeof(dev_name)))
-			syslog(LOG_DEBUG, "Found %s (%u:%u) depends on %s",
-			       name, major, *dev_minor, dev_name);
-	}
-#endif
-	r = 1;
-out:
-	dm_task_destroy(dmt);
-
-	return r;
-}
-
-/* Get all active devices */
-static int _find_all_devs(dm_bitset_t bs, int tp_major, int tp_minor)
-{
-	struct dm_task *dmt;
-	struct dm_names *names;
-	unsigned next = 0;
-	int minor, r = 1;
-
-	if (!(dmt = dm_task_create(DM_DEVICE_LIST)))
-		return 0;
-
-	if (!dm_task_run(dmt)) {
-		r = 0;
-		goto out;
-	}
-
-	if (!(names = dm_task_get_names(dmt))) {
-		r = 0;
-		goto out;
-	}
-
-	if (!names->dev)
-		goto out;
-
-	do {
-		names = (struct dm_names *)((char *) names + next);
-		if (_has_deps(names->name, tp_major, tp_minor, &minor))
-			dm_bit_set(bs, minor);
-		next = names->next;
-	} while (next);
-
-out:
-	dm_task_destroy(dmt);
-
-	return r;
-}
-
-static int _extend(struct dso_state *state)
-{
-#if THIN_DEBUG
-	syslog(LOG_INFO, "dmeventd executes: %s.\n", state->cmd_str);
-#endif
-	return dmeventd_lvm2_run(state->cmd_str);
-}
-
-static int _run(const char *cmd, ...)
-{
-	va_list ap;
-	int argc = 1; /* for argv[0], i.e. cmd */
-	int i = 0;
-	const char **argv;
-	pid_t pid = fork();
-	int status;
-
-	if (pid == 0) { /* child */
-		va_start(ap, cmd);
-		while (va_arg(ap, const char *))
-			++argc;
-		va_end(ap);
-
-		/* + 1 for the terminating NULL */
-		argv = alloca(sizeof(const char *) * (argc + 1));
-
-		argv[0] = cmd;
-                va_start(ap, cmd);
-		while ((argv[++i] = va_arg(ap, const char *)));
-		va_end(ap);
-
-		execvp(cmd, (char **)argv);
-		syslog(LOG_ERR, "Failed to execute %s: %s.\n", cmd, strerror(errno));
-		exit(127);
-	}
-
-	if (pid > 0) { /* parent */
-		if (waitpid(pid, &status, 0) != pid)
-			return 0; /* waitpid failed */
-		if (!WIFEXITED(status) || WEXITSTATUS(status))
-			return 0; /* the child failed */
-	}
-
-	if (pid < 0)
-		return 0; /* fork failed */
-
-	return 1; /* all good */
-}
-
-struct mountinfo_s {
-	struct dm_info info;
-	dm_bitset_t minors; /* Bitset for active thin pool minors */
-	const char *device;
-};
-
-static int _umount_device(char *buffer, unsigned major, unsigned minor,
-			  char *target, void *cb_data)
-{
-	struct mountinfo_s *data = cb_data;
-
-	if ((major == data->info.major) && dm_bit(data->minors, minor)) {
-		syslog(LOG_INFO, "Unmounting thin volume %s from %s.\n",
-		       data->device, target);
-		if (!_run(UMOUNT_COMMAND, "-fl", target, NULL))
-			syslog(LOG_ERR, "Failed to umount thin %s from %s: %s.\n",
-			       data->device, target, strerror(errno));
-	}
-
-	return 1;
-}
-
-/*
- * Find all thin pool users and try to umount them.
- * TODO: work with read-only thin pool support
- */
-static void _umount(struct dm_task *dmt, const char *device)
-{
-	/* TODO: Convert to use hash to reduce memory usage */
-	static const size_t MINORS = (1U << 20); /* 20 bit */
-	struct mountinfo_s data = {
-		.device = device,
-	};
-
-	if (!dm_task_get_info(dmt, &data.info))
-		return;
-
-	dmeventd_lvm2_unlock();
-
-	if (!(data.minors = dm_bitset_create(NULL, MINORS))) {
-		syslog(LOG_ERR, "Failed to allocate bitset. Not unmounting %s.\n", device);
-		goto out;
-	}
-
-	if (!_find_all_devs(data.minors, data.info.major, data.info.minor)) {
-		syslog(LOG_ERR, "Failed to detect mounted volumes for %s.\n", device);
-		goto out;
-	}
-
-	if (!dm_mountinfo_read(_umount_device, &data)) {
-		syslog(LOG_ERR, "Could not parse mountinfo file.\n");
-		goto out;
-	}
-
-out:
-	if (data.minors)
-		dm_bitset_destroy(data.minors);
-	dmeventd_lvm2_lock();
-}
-
-void process_event(struct dm_task *dmt,
-		   enum dm_event_mask event __attribute__((unused)),
-		   void **private)
-{
-	const char *device = dm_task_get_name(dmt);
-	int percent;
-	struct dso_state *state = *private;
-	struct dm_status_thin_pool *tps = NULL;
-	void *next = NULL;
-	uint64_t start, length;
-	char *target_type = NULL;
-	char *params;
-
-#if 0
-	/* No longer monitoring, waiting for remove */
-	if (!state->meta_percent_check && !state->data_percent_check)
-		return;
-#endif
-	dmeventd_lvm2_lock();
-
-	dm_get_next_target(dmt, next, &start, &length, &target_type, &params);
-
-	if (!target_type || (strcmp(target_type, "thin-pool") != 0)) {
-		syslog(LOG_ERR, "Invalid target type.\n");
-		goto out;
-	}
-
-	if (!dm_get_status_thin_pool(state->mem, params, &tps)) {
-		syslog(LOG_ERR, "Failed to parse status.\n");
-		_umount(dmt, device);
-		goto out;
-	}
-
-#if THIN_DEBUG
-	syslog(LOG_INFO, "%p: Got status %" PRIu64 " / %" PRIu64
-	       " %" PRIu64  " / %" PRIu64 ".\n", state,
-	       tps->used_metadata_blocks, tps->total_metadata_blocks,
-	       tps->used_data_blocks, tps->total_data_blocks);
-#endif
-
-	/* Thin pool size had changed. Clear the threshold. */
-	if (state->known_metadata_size != tps->total_metadata_blocks) {
-		state->metadata_percent_check = CHECK_MINIMUM;
-		state->known_metadata_size = tps->total_metadata_blocks;
-	}
-
-	if (state->known_data_size != tps->total_data_blocks) {
-		state->data_percent_check = CHECK_MINIMUM;
-		state->known_data_size = tps->total_data_blocks;
-	}
-
-	percent = 100 * tps->used_metadata_blocks / tps->total_metadata_blocks;
-	if (percent >= state->metadata_percent_check) {
-		/*
-		 * Usage has raised more than CHECK_STEP since the last
-		 * time. Run actions.
-		 */
-		state->metadata_percent_check = (percent / CHECK_STEP) * CHECK_STEP + CHECK_STEP;
-
-		/* FIXME: extension of metadata needs to be written! */
-		if (percent >= WARNING_THRESH) /* Print a warning to syslog. */
-			syslog(LOG_WARNING, "Thin metadata %s is now %i%% full.\n",
-			       device, percent);
-		 /* Try to extend the metadata, in accord with user-set policies */
-		if (!_extend(state)) {
-			syslog(LOG_ERR, "Failed to extend thin metadata %s.\n",
-			       device);
-			_umount(dmt, device);
-		}
-		/* FIXME: hmm READ-ONLY switch should happen in error path */
-	}
-
-	percent = 100 * tps->used_data_blocks / tps->total_data_blocks;
-	if (percent >= state->data_percent_check) {
-		/*
-		 * Usage has raised more than CHECK_STEP since
-		 * the last time. Run actions.
-		 */
-		state->data_percent_check = (percent / CHECK_STEP) * CHECK_STEP + CHECK_STEP;
-
-		if (percent >= WARNING_THRESH) /* Print a warning to syslog. */
-			syslog(LOG_WARNING, "Thin %s is now %i%% full.\n", device, percent);
-		/* Try to extend the thin data, in accord with user-set policies */
-		if (!_extend(state)) {
-			syslog(LOG_ERR, "Failed to extend thin %s.\n", device);
-			state->data_percent_check = 0;
-			_umount(dmt, device);
-		}
-		/* FIXME: hmm READ-ONLY switch should happen in error path */
-	}
-out:
-	if (tps)
-		dm_pool_free(state->mem, tps);
-
-	dmeventd_lvm2_unlock();
-}
-
-int register_device(const char *device,
-		    const char *uuid __attribute__((unused)),
-		    int major __attribute__((unused)),
-		    int minor __attribute__((unused)),
-		    void **private)
-{
-	struct dm_pool *statemem = NULL;
-	struct dso_state *state;
-
-	if (!dmeventd_lvm2_init())
-		goto bad;
-
-	if (!(statemem = dm_pool_create("thin_pool_state", 2048)) ||
-	    !(state = dm_pool_zalloc(statemem, sizeof(*state))) ||
-	    !dmeventd_lvm2_command(statemem, state->cmd_str,
-				   sizeof(state->cmd_str),
-				   "lvextend --use-policies",
-				   device)) {
-		if (statemem)
-			dm_pool_destroy(statemem);
-		dmeventd_lvm2_exit();
-		goto bad;
-	}
-
-	state->mem = statemem;
-	state->metadata_percent_check = CHECK_MINIMUM;
-	state->data_percent_check = CHECK_MINIMUM;
-	*private = state;
-
-	syslog(LOG_INFO, "Monitoring thin %s.\n", device);
-
-	return 1;
-bad:
-	syslog(LOG_ERR, "Failed to monitor thin %s.\n", device);
-
-	return 0;
-}
-
-int unregister_device(const char *device,
-		      const char *uuid __attribute__((unused)),
-		      int major __attribute__((unused)),
-		      int minor __attribute__((unused)),
-		      void **private)
-{
-	struct dso_state *state = *private;
-
-	syslog(LOG_INFO, "No longer monitoring thin %s.\n", device);
-	dm_pool_destroy(state->mem);
-	dmeventd_lvm2_exit();
-
-	return 1;
-}

daemons/lvmetad/Makefile.in

@@ -1,60 +0,0 @@
-#
-# 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-
-srcdir = @srcdir@
-top_srcdir = @top_srcdir@
-top_builddir = @top_builddir@
-
-SOURCES = lvmetad-core.c
-SOURCES2 = testclient.c
-
-TARGETS = lvmetad lvmetad-testclient
-
-.PHONY: install_lvmetad
-
-CFLOW_LIST = $(SOURCES)
-CFLOW_LIST_TARGET = $(LIB_NAME).cflow
-CFLOW_TARGET = lvmetad
-
-include $(top_builddir)/make.tmpl
-
-INCLUDES += -I$(top_srcdir)/libdaemon/server
-LVMLIBS = -ldaemonserver $(LVMINTERNAL_LIBS) -ldevmapper
-
-LIBS += $(PTHREAD_LIBS)
-
-LDFLAGS += -L$(top_builddir)/libdaemon/server $(EXTRA_EXEC_LDFLAGS)
-CLDFLAGS += -L$(top_builddir)/libdaemon/server
-CFLAGS += $(EXTRA_EXEC_CFLAGS)
-
-lvmetad: $(OBJECTS) $(top_builddir)/libdaemon/client/libdaemonclient.a \
-		    $(top_builddir)/libdaemon/server/libdaemonserver.a
-	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJECTS) \
-	$(DL_LIBS) $(LVMLIBS) $(LIBS) -rdynamic
-
-# TODO: No idea. No idea how to test either.
-#ifneq ("$(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/lvmetad-client.h

@@ -1,83 +0,0 @@
-/*
- * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#ifndef _LVM_LVMETAD_CLIENT_H
-#define _LVM_LVMETAD_CLIENT_H
-
-#include "daemon-client.h"
-
-#define LVMETAD_SOCKET DEFAULT_RUN_DIR "/lvmetad.socket"
-
-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

@@ -1,16 +0,0 @@
-#!/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

@@ -1,127 +0,0 @@
-#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];
-	id_write_format(dev->pvid, uuid, 64);
-	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();
-
-	if (argc > 1) {
-		int i;
-		struct cmd_context *cmd = create_toolcontext(0, NULL, 0, 0);
-		for (i = 1; i < argc; ++i) {
-			const char *uuid = NULL;
-			scan(h, argv[i]);
-		}
-		destroy_toolcontext(cmd);
-		return 0;
-	}
-
-	_pv_add(h, uuid1, NULL);
-	_pv_add(h, uuid2, metadata2);
-	_dump_vg(h, vgid);
-	_pv_add(h, uuid3, NULL);
-
-	daemon_close(h);
-	return 0;
-}

doc/.gitignore

@@ -1 +0,0 @@
-example.conf

doc/Makefile.in

@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2011 Red Hat, Inc. All rights reserved.
+# Copyright (C) 2004 Red Hat, Inc. All rights reserved.
 #
 # This file is part of LVM2.
 #
@@ -13,13 +13,17 @@
 
 srcdir = @srcdir@
 top_srcdir = @top_srcdir@
-top_builddir = @top_builddir@
+VPATH = @srcdir@
 
-SOURCES = thin.c
+CONFSRC=example.conf
+CONFDEST=lvm.conf
 
-LIB_SHARED = liblvm2thin.$(LIB_SUFFIX)
+include $(top_srcdir)/make.tmpl
-LIB_VERSION = $(LIB_VERSION_LVM)
 
-include $(top_builddir)/make.tmpl
+install:
+	@if [ ! -e $(confdir)/$(CONFDEST) ]; then \
+		echo "Installing $(CONFSRC) as $(confdir)/$(CONFDEST)"; \
+		@INSTALL@ -D $(OWNER) $(GROUP) -m 644 $(CONFSRC) \
+			$(confdir)/$(CONFDEST); \
+	fi
 
-install: install_lib_shared_plugin

doc/example.conf

@@ -0,0 +1,411 @@
+# This is an example configuration file for the LVM2 system.
+# It contains the default settings that would be used if there was no
+# /etc/lvm/lvm.conf file.
+#
+# Refer to 'man lvm.conf' for further information including the file layout.
+#
+# To put this file in a different directory and override /etc/lvm set
+# the environment variable LVM_SYSTEM_DIR before running the tools.
+
+
+# This section allows you to configure which block devices should
+# be used by the LVM system.
+devices {
+
+    # Where do you want your volume groups to appear ?
+    dir = "/dev"
+
+    # An array of directories that contain the device nodes you wish
+    # to use with LVM2.
+    scan = [ "/dev" ]
+
+    # If several entries in the scanned directories correspond to the
+    # same block device and the tools need to display a name for device,
+    # all the pathnames are matched against each item in the following
+    # list of regular expressions in turn and the first match is used.
+    preferred_names = [ ]
+
+    # Try to avoid using undescriptive /dev/dm-N names, if present.
+    # preferred_names = [ "^/dev/mpath/", "^/dev/mapper/mpath", "^/dev/[hs]d" ]
+
+    # A filter that tells LVM2 to only use a restricted set of devices.
+    # The filter consists of an array of regular expressions.  These
+    # expressions can be delimited by a character of your choice, and
+    # prefixed with either an 'a' (for accept) or 'r' (for reject).
+    # The first expression found to match a device name determines if
+    # the device will be accepted or rejected (ignored).  Devices that
+    # don't match any patterns are accepted.
+
+    # Be careful if there there are symbolic links or multiple filesystem 
+    # entries for the same device as each name is checked separately against
+    # the list of patterns.  The effect is that if any name matches any 'a'
+    # pattern, the device is accepted; otherwise if any name matches any 'r'
+    # pattern it is rejected; otherwise it is accepted.
+
+    # Don't have more than one filter line active at once: only one gets used.
+
+    # Run vgscan after you change this parameter to ensure that
+    # the cache file gets regenerated (see below).
+    # If it doesn't do what you expect, check the output of 'vgscan -vvvv'.
+
+
+    # By default we accept every block device:
+    filter = [ "a/.*/" ]
+
+    # Exclude the cdrom drive
+    # filter = [ "r|/dev/cdrom|" ]
+
+    # When testing I like to work with just loopback devices:
+    # filter = [ "a/loop/", "r/.*/" ]
+
+    # Or maybe all loops and ide drives except hdc:
+    # filter =[ "a|loop|", "r|/dev/hdc|", "a|/dev/ide|", "r|.*|" ]
+
+    # Use anchors if you want to be really specific
+    # filter = [ "a|^/dev/hda8$|", "r/.*/" ]
+
+    # The results of the filtering are cached on disk to avoid
+    # rescanning dud devices (which can take a very long time).
+    # By default this cache is stored in the /etc/lvm/cache directory
+    # in a file called '.cache'.
+    # It is safe to delete the contents: the tools regenerate it.
+    # (The old setting 'cache' is still respected if neither of
+    # these new ones is present.)
+    cache_dir = "/etc/lvm/cache"
+    cache_file_prefix = ""
+
+    # You can turn off writing this cache file by setting this to 0.
+    write_cache_state = 1
+
+    # Advanced settings.
+
+    # List of pairs of additional acceptable block device types found 
+    # in /proc/devices with maximum (non-zero) number of partitions.
+    # types = [ "fd", 16 ]
+
+    # If sysfs is mounted (2.6 kernels) restrict device scanning to 
+    # the block devices it believes are valid.
+    # 1 enables; 0 disables.
+    sysfs_scan = 1	
+
+    # By default, LVM2 will ignore devices used as components of
+    # software RAID (md) devices by looking for md superblocks.
+    # 1 enables; 0 disables.
+    md_component_detection = 1
+
+    # By default, if a PV is placed directly upon an md device, LVM2
+    # will align its data blocks with the the chunk_size exposed in sysfs.
+    # 1 enables; 0 disables.
+    md_chunk_alignment = 1
+
+    # If, while scanning the system for PVs, LVM2 encounters a device-mapper
+    # device that has its I/O suspended, it waits for it to become accessible.
+    # Set this to 1 to skip such devices.  This should only be needed
+    # in recovery situations.
+    ignore_suspended_devices = 0
+}
+
+# This section that allows you to configure the nature of the
+# information that LVM2 reports.
+log {
+
+    # Controls the messages sent to stdout or stderr.
+    # There are three levels of verbosity, 3 being the most verbose.
+    verbose = 0
+
+    # Should we send log messages through syslog?
+    # 1 is yes; 0 is no.
+    syslog = 1
+
+    # Should we log error and debug messages to a file?
+    # By default there is no log file.
+    #file = "/var/log/lvm2.log"
+
+    # Should we overwrite the log file each time the program is run?
+    # By default we append.
+    overwrite = 0
+
+    # What level of log messages should we send to the log file and/or syslog?
+    # There are 6 syslog-like log levels currently in use - 2 to 7 inclusive.
+    # 7 is the most verbose (LOG_DEBUG).
+    level = 0
+    
+    # Format of output messages
+    # Whether or not (1 or 0) to indent messages according to their severity
+    indent = 1
+
+    # Whether or not (1 or 0) to display the command name on each line output
+    command_names = 0
+
+    # A prefix to use before the message text (but after the command name,
+    # if selected).  Default is two spaces, so you can see/grep the severity
+    # of each message.
+    prefix = "  "
+
+    # To make the messages look similar to the original LVM tools use:
+    #   indent = 0
+    #   command_names = 1
+    #   prefix = " -- "
+
+    # Set this if you want log messages during activation.
+    # Don't use this in low memory situations (can deadlock).
+    # activation = 0
+}
+
+# Configuration of metadata backups and archiving.  In LVM2 when we
+# talk about a 'backup' we mean making a copy of the metadata for the
+# *current* system.  The 'archive' contains old metadata configurations.
+# Backups are stored in a human readeable text format.
+backup {
+
+    # Should we maintain a backup of the current metadata configuration ?
+    # Use 1 for Yes; 0 for No.
+    # Think very hard before turning this off!
+    backup = 1
+
+    # Where shall we keep it ?
+    # Remember to back up this directory regularly!
+    backup_dir = "/etc/lvm/backup"
+
+    # Should we maintain an archive of old metadata configurations.
+    # Use 1 for Yes; 0 for No.
+    # On by default.  Think very hard before turning this off.
+    archive = 1
+
+    # Where should archived files go ?
+    # Remember to back up this directory regularly!
+    archive_dir = "/etc/lvm/archive"
+    
+    # What is the minimum number of archive files you wish to keep ?
+    retain_min = 10
+
+    # What is the minimum time you wish to keep an archive file for ?
+    retain_days = 30
+}
+
+# Settings for the running LVM2 in shell (readline) mode.
+shell {
+
+    # Number of lines of history to store in ~/.lvm_history
+    history_size = 100
+}
+
+
+# Miscellaneous global LVM2 settings
+global {
+    
+    # The file creation mask for any files and directories created.
+    # Interpreted as octal if the first digit is zero.
+    umask = 077
+
+    # Allow other users to read the files
+    #umask = 022
+
+    # Enabling test mode means that no changes to the on disk metadata
+    # will be made.  Equivalent to having the -t option on every
+    # command.  Defaults to off.
+    test = 0
+
+    # Default value for --units argument
+    units = "h"
+
+    # Whether or not to communicate with the kernel device-mapper.
+    # Set to 0 if you want to use the tools to manipulate LVM metadata 
+    # without activating any logical volumes.
+    # If the device-mapper kernel driver is not present in your kernel
+    # setting this to 0 should suppress the error messages.
+    activation = 1
+
+    # If we can't communicate with device-mapper, should we try running 
+    # the LVM1 tools?
+    # This option only applies to 2.4 kernels and is provided to help you
+    # switch between device-mapper kernels and LVM1 kernels.
+    # The LVM1 tools need to be installed with .lvm1 suffices
+    # e.g. vgscan.lvm1 and they will stop working after you start using
+    # the new lvm2 on-disk metadata format.
+    # The default value is set when the tools are built.
+    # fallback_to_lvm1 = 0
+
+    # The default metadata format that commands should use - "lvm1" or "lvm2".
+    # The command line override is -M1 or -M2.
+    # Defaults to "lvm1" if compiled in, else "lvm2".
+    # format = "lvm1"
+
+    # Location of proc filesystem
+    proc = "/proc"
+
+    # Type of locking to use. Defaults to local file-based locking (1).
+    # Turn locking off by setting to 0 (dangerous: risks metadata corruption
+    # if LVM2 commands get run concurrently).
+    # Type 2 uses the external shared library locking_library.
+    # Type 3 uses built-in clustered locking.
+    locking_type = 1
+
+    # If using external locking (type 2) and initialisation fails,
+    # with this set to 1 an attempt will be made to use the built-in
+    # clustered locking.
+    # If you are using a customised locking_library you should set this to 0.
+    fallback_to_clustered_locking = 1
+
+    # If an attempt to initialise type 2 or type 3 locking failed, perhaps
+    # because cluster components such as clvmd are not running, with this set
+    # to 1 an attempt will be made to use local file-based locking (type 1).
+    # If this succeeds, only commands against local volume groups will proceed.
+    # Volume Groups marked as clustered will be ignored.
+    fallback_to_local_locking = 1
+
+    # Local non-LV directory that holds file-based locks while commands are
+    # in progress.  A directory like /tmp that may get wiped on reboot is OK.
+    locking_dir = "/var/lock/lvm"
+
+    # Other entries can go here to allow you to load shared libraries
+    # e.g. if support for LVM1 metadata was compiled as a shared library use
+    #   format_libraries = "liblvm2format1.so" 
+    # Full pathnames can be given.
+
+    # Search this directory first for shared libraries.
+    #   library_dir = "/lib"
+
+    # The external locking library to load if locking_type is set to 2.
+    #   locking_library = "liblvm2clusterlock.so"
+}
+
+activation {
+    # How to fill in missing stripes if activating an incomplete volume.
+    # Using "error" will make inaccessible parts of the device return
+    # I/O errors on access.  You can instead use a device path, in which 
+    # case, that device will be used to in place of missing stripes.
+    # But note that using anything other than "error" with mirrored 
+    # or snapshotted volumes is likely to result in data corruption.
+    missing_stripe_filler = "error"
+
+    # How much stack (in KB) to reserve for use while devices suspended
+    reserved_stack = 256
+
+    # How much memory (in KB) to reserve for use while devices suspended
+    reserved_memory = 8192
+
+    # Nice value used while devices suspended
+    process_priority = -18
+
+    # If volume_list is defined, each LV is only activated if there is a
+    # match against the list.
+    #   "vgname" and "vgname/lvname" are matched exactly.
+    #   "@tag" matches any tag set in the LV or VG.
+    #   "@*" matches if any tag defined on the host is also set in the LV or VG
+    #
+    # volume_list = [ "vg1", "vg2/lvol1", "@tag1", "@*" ]
+
+    # Size (in KB) of each copy operation when mirroring
+    mirror_region_size = 512
+
+    # Setting to use when there is no readahead value stored in the metadata.
+    #
+    # "none" - Disable readahead.
+    # "auto" - Use default value chosen by kernel.
+    readahead = "auto"
+
+    # 'mirror_image_fault_policy' and 'mirror_log_fault_policy' define
+    # how a device failure affecting a mirror is handled.
+    # A mirror is composed of mirror images (copies) and a log.
+    # A disk log ensures that a mirror does not need to be re-synced
+    # (all copies made the same) every time a machine reboots or crashes.
+    #
+    # In the event of a failure, the specified policy will be used to
+    # determine what happens:
+    #
+    # "remove" - Simply remove the faulty device and run without it.  If
+    #            the log device fails, the mirror would convert to using
+    #            an in-memory log.  This means the mirror will not
+    #            remember its sync status across crashes/reboots and
+    #            the entire mirror will be re-synced.  If a
+    #            mirror image fails, the mirror will convert to a
+    #            non-mirrored device if there is only one remaining good
+    #            copy.
+    #
+    # "allocate" - Remove the faulty device and try to allocate space on
+    #            a new device to be a replacement for the failed device.
+    #            Using this policy for the log is fast and maintains the
+    #            ability to remember sync state through crashes/reboots.
+    #            Using this policy for a mirror device is slow, as it
+    #            requires the mirror to resynchronize the devices, but it
+    #            will preserve the mirror characteristic of the device.
+    #            This policy acts like "remove" if no suitable device and
+    #            space can be allocated for the replacement.
+    #            Currently this is not implemented properly and behaves
+    #            similarly to:
+    #
+    # "allocate_anywhere" - Operates like "allocate", but it does not
+    #            require that the new space being allocated be on a
+    #            device is not part of the mirror.  For a log device
+    #            failure, this could mean that the log is allocated on
+    #            the same device as a mirror device.  For a mirror
+    #            device, this could mean that the mirror device is
+    #            allocated on the same device as another mirror device.
+    #            This policy would not be wise for mirror devices
+    #            because it would break the redundant nature of the
+    #            mirror.  This policy acts like "remove" if no suitable
+    #            device and space can be allocated for the replacement.
+
+    mirror_log_fault_policy = "allocate"
+    mirror_device_fault_policy = "remove"
+}
+
+
+####################
+# Advanced section #
+####################
+
+# Metadata settings
+#
+# metadata {
+    # Default number of copies of metadata to hold on each PV.  0, 1 or 2.
+    # You might want to override it from the command line with 0 
+    # when running pvcreate on new PVs which are to be added to large VGs.
+
+    # pvmetadatacopies = 1
+
+    # Approximate default size of on-disk metadata areas in sectors.
+    # You should increase this if you have large volume groups or
+    # you want to retain a large on-disk history of your metadata changes.
+
+    # pvmetadatasize = 255
+
+    # List of directories holding live copies of text format metadata.
+    # These directories must not be on logical volumes!
+    # It's possible to use LVM2 with a couple of directories here,
+    # preferably on different (non-LV) filesystems, and with no other 
+    # on-disk metadata (pvmetadatacopies = 0). Or this can be in
+    # addition to on-disk metadata areas.
+    # The feature was originally added to simplify testing and is not
+    # supported under low memory situations - the machine could lock up.
+    #
+    # Never edit any files in these directories by hand unless you
+    # you are absolutely sure you know what you are doing! Use
+    # the supplied toolset to make changes (e.g. vgcfgrestore).
+
+    # dirs = [ "/etc/lvm/metadata", "/mnt/disk2/lvm/metadata2" ]
+#}
+
+# Event daemon
+#
+# dmeventd {
+    # mirror_library is the library used when monitoring a mirror device.
+    #
+    # "libdevmapper-event-lvm2mirror.so" attempts to recover from
+    # failures.  It removes failed devices from a volume group and
+    # reconfigures a mirror as necessary. If no mirror library is
+    # provided, mirrors are not monitored through dmeventd.
+
+    # mirror_library = "libdevmapper-event-lvm2mirror.so"
+
+    # snapshot_library is the library used when monitoring a snapshot device.
+    #
+    # "libdevmapper-event-lvm2snapshot.so" monitors the filling of
+    # snapshots and emits a warning through syslog, when the use of
+    # snapshot exceedes 80%. The warning is repeated when 85%, 90% and
+    # 95% of the snapshot are filled.
+
+    # snapshot_library = "libdevmapper-event-lvm2snapshot.so"
+#}
+

doc/example_cmdlib.c

@@ -13,11 +13,9 @@
  */
 
 #include "lvm2cmd.h"
-#include <stdio.h>
 
 /* All output gets passed to this function line-by-line */
-void test_log_fn(int level, const char *file, int line,
+void test_log_fn(int level, const char *file, int line, const char *format)
-		 int dm_errno, const char *format)
 {
 	/* Extract and process output here rather than printing it */
 

doc/kernel/cache-policies.txt

@@ -1,77 +0,0 @@
-Guidance for writing policies
-=============================
-
-Try to keep transactionality out of it.  The core is careful to
-avoid asking about anything that is migrating.  This is a pain, but
-makes it easier to write the policies.
-
-Mappings are loaded into the policy at construction time.
-
-Every bio that is mapped by the target is referred to the policy.
-The policy can return a simple HIT or MISS or issue a migration.
-
-Currently there's no way for the policy to issue background work,
-e.g. to start writing back dirty blocks that are going to be evicte
-soon.
-
-Because we map bios, rather than requests it's easy for the policy
-to get fooled by many small bios.  For this reason the core target
-issues periodic ticks to the policy.  It's suggested that the policy
-doesn't update states (eg, hit counts) for a block more than once
-for each tick.  The core ticks by watching bios complete, and so
-trying to see when the io scheduler has let the ios run.
-
-
-Overview of supplied cache replacement policies
-===============================================
-
-multiqueue
-----------
-
-This policy is the default.
-
-The multiqueue policy has two sets of 16 queues: one set for entries
-waiting for the cache and another one for those in the cache.
-Cache entries in the queues are aged based on logical time. Entry into
-the cache is based on variable thresholds and queue selection is based
-on hit count on entry. The policy aims to take different cache miss
-costs into account and to adjust to varying load patterns automatically.
-
-Message and constructor argument pairs are:
-	'sequential_threshold <#nr_sequential_ios>' and
-	'random_threshold <#nr_random_ios>'.
-
-The sequential threshold indicates the number of contiguous I/Os
-required before a stream is treated as sequential.  The random threshold
-is the number of intervening non-contiguous I/Os that must be seen
-before the stream is treated as random again.
-
-The sequential and random thresholds default to 512 and 4 respectively.
-
-Large, sequential ios are probably better left on the origin device
-since spindles tend to have good bandwidth. The io_tracker counts
-contiguous I/Os to try to spot when the io is in one of these sequential
-modes.
-
-cleaner
--------
-
-The cleaner writes back all dirty blocks in a cache to decommission it.
-
-Examples
-========
-
-The syntax for a table is:
-	cache <metadata dev> <cache dev> <origin dev> <block size>
-	<#feature_args> [<feature arg>]*
-	<policy> <#policy_args> [<policy arg>]*
-
-The syntax to send a message using the dmsetup command is:
-	dmsetup message <mapped device> 0 sequential_threshold 1024
-	dmsetup message <mapped device> 0 random_threshold 8
-
-Using dmsetup:
-	dmsetup create blah --table "0 268435456 cache /dev/sdb /dev/sdc \
-	    /dev/sdd 512 0 mq 4 sequential_threshold 1024 random_threshold 8"
-	creates a 128GB large mapped device named 'blah' with the
-	sequential threshold set to 1024 and the random_threshold set to 8.

doc/kernel/cache.txt

@@ -1,243 +0,0 @@
-Introduction
-============
-
-dm-cache is a device mapper target written by Joe Thornber, Heinz
-Mauelshagen, and Mike Snitzer.
-
-It aims to improve performance of a block device (eg, a spindle) by
-dynamically migrating some of its data to a faster, smaller device
-(eg, an SSD).
-
-This device-mapper solution allows us to insert this caching at
-different levels of the dm stack, for instance above the data device for
-a thin-provisioning pool.  Caching solutions that are integrated more
-closely with the virtual memory system should give better performance.
-
-The target reuses the metadata library used in the thin-provisioning
-library.
-
-The decision as to what data to migrate and when is left to a plug-in
-policy module.  Several of these have been written as we experiment,
-and we hope other people will contribute others for specific io
-scenarios (eg. a vm image server).
-
-Glossary
-========
-
-  Migration -  Movement of the primary copy of a logical block from one
-	       device to the other.
-  Promotion -  Migration from slow device to fast device.
-  Demotion  -  Migration from fast device to slow device.
-
-The origin device always contains a copy of the logical block, which
-may be out of date or kept in sync with the copy on the cache device
-(depending on policy).
-
-Design
-======
-
-Sub-devices
------------
-
-The target is constructed by passing three devices to it (along with
-other parameters detailed later):
-
-1. An origin device - the big, slow one.
-
-2. A cache device - the small, fast one.
-
-3. A small metadata device - records which blocks are in the cache,
-   which are dirty, and extra hints for use by the policy object.
-   This information could be put on the cache device, but having it
-   separate allows the volume manager to configure it differently,
-   e.g. as a mirror for extra robustness.
-
-Fixed block size
-----------------
-
-The origin is divided up into blocks of a fixed size.  This block size
-is configurable when you first create the cache.  Typically we've been
-using block sizes of 256k - 1024k.
-
-Having a fixed block size simplifies the target a lot.  But it is
-something of a compromise.  For instance, a small part of a block may be
-getting hit a lot, yet the whole block will be promoted to the cache.
-So large block sizes are bad because they waste cache space.  And small
-block sizes are bad because they increase the amount of metadata (both
-in core and on disk).
-
-Writeback/writethrough
-----------------------
-
-The cache has two modes, writeback and writethrough.
-
-If writeback, the default, is selected then a write to a block that is
-cached will go only to the cache and the block will be marked dirty in
-the metadata.
-
-If writethrough is selected then a write to a cached block will not
-complete until it has hit both the origin and cache devices.  Clean
-blocks should remain clean.
-
-A simple cleaner policy is provided, which will clean (write back) all
-dirty blocks in a cache.  Useful for decommissioning a cache.
-
-Migration throttling
---------------------
-
-Migrating data between the origin and cache device uses bandwidth.
-The user can set a throttle to prevent more than a certain amount of
-migration occuring at any one time.  Currently we're not taking any
-account of normal io traffic going to the devices.  More work needs
-doing here to avoid migrating during those peak io moments.
-
-For the time being, a message "migration_threshold <#sectors>"
-can be used to set the maximum number of sectors being migrated,
-the default being 204800 sectors (or 100MB).
-
-Updating on-disk metadata
--------------------------
-
-On-disk metadata is committed every time a REQ_SYNC or REQ_FUA bio is
-written.  If no such requests are made then commits will occur every
-second.  This means the cache behaves like a physical disk that has a
-write cache (the same is true of the thin-provisioning target).  If
-power is lost you may lose some recent writes.  The metadata should
-always be consistent in spite of any crash.
-
-The 'dirty' state for a cache block changes far too frequently for us
-to keep updating it on the fly.  So we treat it as a hint.  In normal
-operation it will be written when the dm device is suspended.  If the
-system crashes all cache blocks will be assumed dirty when restarted.
-
-Per-block policy hints
-----------------------
-
-Policy plug-ins can store a chunk of data per cache block.  It's up to
-the policy how big this chunk is, but it should be kept small.  Like the
-dirty flags this data is lost if there's a crash so a safe fallback
-value should always be possible.
-
-For instance, the 'mq' policy, which is currently the default policy,
-uses this facility to store the hit count of the cache blocks.  If
-there's a crash this information will be lost, which means the cache
-may be less efficient until those hit counts are regenerated.
-
-Policy hints affect performance, not correctness.
-
-Policy messaging
-----------------
-
-Policies will have different tunables, specific to each one, so we
-need a generic way of getting and setting these.  Device-mapper
-messages are used.  Refer to cache-policies.txt.
-
-Discard bitset resolution
--------------------------
-
-We can avoid copying data during migration if we know the block has
-been discarded.  A prime example of this is when mkfs discards the
-whole block device.  We store a bitset tracking the discard state of
-blocks.  However, we allow this bitset to have a different block size
-from the cache blocks.  This is because we need to track the discard
-state for all of the origin device (compare with the dirty bitset
-which is just for the smaller cache device).
-
-Target interface
-================
-
-Constructor
------------
-
- cache <metadata dev> <cache dev> <origin dev> <block size>
-       <#feature args> [<feature arg>]*
-       <policy> <#policy args> [policy args]*
-
- metadata dev    : fast device holding the persistent metadata
- cache dev	 : fast device holding cached data blocks
- origin dev	 : slow device holding original data blocks
- block size      : cache unit size in sectors
-
- #feature args   : number of feature arguments passed
- feature args    : writethrough.  (The default is writeback.)
-
- policy          : the replacement policy to use
- #policy args    : an even number of arguments corresponding to
-                   key/value pairs passed to the policy
- policy args     : key/value pairs passed to the policy
-		   E.g. 'sequential_threshold 1024'
-		   See cache-policies.txt for details.
-
-Optional feature arguments are:
-   writethrough  : write through caching that prohibits cache block
-		   content from being different from origin block content.
-		   Without this argument, the default behaviour is to write
-		   back cache block contents later for performance reasons,
-		   so they may differ from the corresponding origin blocks.
-
-A policy called 'default' is always registered.  This is an alias for
-the policy we currently think is giving best all round performance.
-
-As the default policy could vary between kernels, if you are relying on
-the characteristics of a specific policy, always request it by name.
-
-Status
-------
-
-<#used metadata blocks>/<#total metadata blocks> <#read hits> <#read misses>
-<#write hits> <#write misses> <#demotions> <#promotions> <#blocks in cache>
-<#dirty> <#features> <features>* <#core args> <core args>* <#policy args>
-<policy args>*
-
-#used metadata blocks    : Number of metadata blocks used
-#total metadata blocks   : Total number of metadata blocks
-#read hits               : Number of times a READ bio has been mapped
-			     to the cache
-#read misses             : Number of times a READ bio has been mapped
-			     to the origin
-#write hits              : Number of times a WRITE bio has been mapped
-			     to the cache
-#write misses            : Number of times a WRITE bio has been
-			     mapped to the origin
-#demotions               : Number of times a block has been removed
-			     from the cache
-#promotions              : Number of times a block has been moved to
-			     the cache
-#blocks in cache         : Number of blocks resident in the cache
-#dirty                   : Number of blocks in the cache that differ
-			     from the origin
-#feature args            : Number of feature args to follow
-feature args             : 'writethrough' (optional)
-#core args               : Number of core arguments (must be even)
-core args                : Key/value pairs for tuning the core
-			     e.g. migration_threshold
-#policy args             : Number of policy arguments to follow (must be even)
-policy args              : Key/value pairs
-			     e.g. 'sequential_threshold 1024
-
-Messages
---------
-
-Policies will have different tunables, specific to each one, so we
-need a generic way of getting and setting these.  Device-mapper
-messages are used.  (A sysfs interface would also be possible.)
-
-The message format is:
-
-   <key> <value>
-
-E.g.
-   dmsetup message my_cache 0 sequential_threshold 1024
-
-Examples
-========
-
-The test suite can be found here:
-
-https://github.com/jthornber/thinp-test-suite
-
-dmsetup create my_cache --table '0 41943040 cache /dev/mapper/metadata \
-	/dev/mapper/ssd /dev/mapper/origin 512 1 writeback default 0'
-dmsetup create my_cache --table '0 41943040 cache /dev/mapper/metadata \
-	/dev/mapper/ssd /dev/mapper/origin 1024 1 writeback \
-	mq 4 sequential_threshold 1024 random_threshold 8'

doc/kernel/crypt.txt

@@ -1,76 +0,0 @@
-dm-crypt
-=========
-
-Device-Mapper's "crypt" target provides transparent encryption of block devices
-using the kernel crypto API.
-
-Parameters: <cipher> <key> <iv_offset> <device path> \
-	      <offset> [<#opt_params> <opt_params>]
-
-<cipher>
-    Encryption cipher and an optional IV generation mode.
-    (In format cipher[:keycount]-chainmode-ivopts:ivmode).
-    Examples:
-       des
-       aes-cbc-essiv:sha256
-       twofish-ecb
-
-    /proc/crypto contains supported crypto modes
-
-<key>
-    Key used for encryption. It is encoded as a hexadecimal number.
-    You can only use key sizes that are valid for the selected cipher.
-
-<keycount>
-    Multi-key compatibility mode. You can define <keycount> keys and
-    then sectors are encrypted according to their offsets (sector 0 uses key0;
-    sector 1 uses key1 etc.).  <keycount> must be a power of two.
-
-<iv_offset>
-    The IV offset is a sector count that is added to the sector number
-    before creating the IV.
-
-<device path>
-    This is the device that is going to be used as backend and contains the
-    encrypted data.  You can specify it as a path like /dev/xxx or a device
-    number <major>:<minor>.
-
-<offset>
-    Starting sector within the device where the encrypted data begins.
-
-<#opt_params>
-    Number of optional parameters. If there are no optional parameters,
-    the optional paramaters section can be skipped or #opt_params can be zero.
-    Otherwise #opt_params is the number of following arguments.
-
-    Example of optional parameters section:
-        1 allow_discards
-
-allow_discards
-    Block discard requests (a.k.a. TRIM) are passed through the crypt device.
-    The default is to ignore discard requests.
-
-    WARNING: Assess the specific security risks carefully before enabling this
-    option.  For example, allowing discards on encrypted devices may lead to
-    the leak of information about the ciphertext device (filesystem type,
-    used space etc.) if the discarded blocks can be located easily on the
-    device later.
-
-Example scripts
-===============
-LUKS (Linux Unified Key Setup) is now the preferred way to set up disk
-encryption with dm-crypt using the 'cryptsetup' utility, see
-http://code.google.com/p/cryptsetup/
-
-[[
-#!/bin/sh
-# Create a crypt device using dmsetup
-dmsetup create crypt1 --table "0 `blockdev --getsize $1` crypt aes-cbc-essiv:sha256 babebabebabebabebabebabebabebabe 0 $1 0"
-]]
-
-[[
-#!/bin/sh
-# Create a crypt device using cryptsetup and LUKS header with default cipher
-cryptsetup luksFormat $1
-cryptsetup luksOpen $1 crypt1
-]]

doc/kernel/delay.txt

@@ -1,26 +0,0 @@
-dm-delay
-========
-
-Device-Mapper's "delay" target delays reads and/or writes
-and maps them to different devices.
-
-Parameters:
-    <device> <offset> <delay> [<write_device> <write_offset> <write_delay>]
-
-With separate write parameters, the first set is only used for reads.
-Delays are specified in milliseconds.
-
-Example scripts
-===============
-[[
-#!/bin/sh
-# Create device delaying rw operation for 500ms
-echo "0 `blockdev --getsize $1` delay $1 0 500" | dmsetup create delayed
-]]
-
-[[
-#!/bin/sh
-# Create device delaying only write operation for 500ms and
-# splitting reads and writes to different devices $1 $2
-echo "0 `blockdev --getsize $1` delay $1 0 0 $2 0 500" | dmsetup create delayed
-]]

doc/kernel/flakey.txt

@@ -1,53 +0,0 @@
-dm-flakey
-=========
-
-This target is the same as the linear target except that it exhibits
-unreliable behaviour periodically.  It's been found useful in simulating
-failing devices for testing purposes.
-
-Starting from the time the table is loaded, the device is available for
-<up interval> seconds, then exhibits unreliable behaviour for <down
-interval> seconds, and then this cycle repeats.
-
-Also, consider using this in combination with the dm-delay target too,
-which can delay reads and writes and/or send them to different
-underlying devices.
-
-Table parameters
-----------------
-  <dev path> <offset> <up interval> <down interval> \
-    [<num_features> [<feature arguments>]]
-
-Mandatory parameters:
-    <dev path>: Full pathname to the underlying block-device, or a
-                "major:minor" device-number.
-    <offset>: Starting sector within the device.
-    <up interval>: Number of seconds device is available.
-    <down interval>: Number of seconds device returns errors.
-
-Optional feature parameters:
-  If no feature parameters are present, during the periods of
-  unreliability, all I/O returns errors.
-
-  drop_writes:
-	All write I/O is silently ignored.
-	Read I/O is handled correctly.
-
-  corrupt_bio_byte <Nth_byte> <direction> <value> <flags>:
-	During <down interval>, replace <Nth_byte> of the data of
-	each matching bio with <value>.
-
-    <Nth_byte>: The offset of the byte to replace.
-		Counting starts at 1, to replace the first byte.
-    <direction>: Either 'r' to corrupt reads or 'w' to corrupt writes.
-		 'w' is incompatible with drop_writes.
-    <value>: The value (from 0-255) to write.
-    <flags>: Perform the replacement only if bio->bi_rw has all the
-	     selected flags set.
-
-Examples:
-  corrupt_bio_byte 32 r 1 0
-	- replaces the 32nd byte of READ bios with the value 1
-
-  corrupt_bio_byte 224 w 0 32
-	- replaces the 224th byte of REQ_META (=32) bios with the value 0

doc/kernel/io.txt

@@ -1,75 +0,0 @@
-dm-io
-=====
-
-Dm-io provides synchronous and asynchronous I/O services. There are three
-types of I/O services available, and each type has a sync and an async
-version.
-
-The user must set up an io_region structure to describe the desired location
-of the I/O. Each io_region indicates a block-device along with the starting
-sector and size of the region.
-
-   struct io_region {
-      struct block_device *bdev;
-      sector_t sector;
-      sector_t count;
-   };
-
-Dm-io can read from one io_region or write to one or more io_regions. Writes
-to multiple regions are specified by an array of io_region structures.
-
-The first I/O service type takes a list of memory pages as the data buffer for
-the I/O, along with an offset into the first page.
-
-   struct page_list {
-      struct page_list *next;
-      struct page *page;
-   };
-
-   int dm_io_sync(unsigned int num_regions, struct io_region *where, int rw,
-                  struct page_list *pl, unsigned int offset,
-                  unsigned long *error_bits);
-   int dm_io_async(unsigned int num_regions, struct io_region *where, int rw,
-                   struct page_list *pl, unsigned int offset,
-                   io_notify_fn fn, void *context);
-
-The second I/O service type takes an array of bio vectors as the data buffer
-for the I/O. This service can be handy if the caller has a pre-assembled bio,
-but wants to direct different portions of the bio to different devices.
-
-   int dm_io_sync_bvec(unsigned int num_regions, struct io_region *where,
-                       int rw, struct bio_vec *bvec,
-                       unsigned long *error_bits);
-   int dm_io_async_bvec(unsigned int num_regions, struct io_region *where,
-                        int rw, struct bio_vec *bvec,
-                        io_notify_fn fn, void *context);
-
-The third I/O service type takes a pointer to a vmalloc'd memory buffer as the
-data buffer for the I/O. This service can be handy if the caller needs to do
-I/O to a large region but doesn't want to allocate a large number of individual
-memory pages.
-
-   int dm_io_sync_vm(unsigned int num_regions, struct io_region *where, int rw,
-                     void *data, unsigned long *error_bits);
-   int dm_io_async_vm(unsigned int num_regions, struct io_region *where, int rw,
-                      void *data, io_notify_fn fn, void *context);
-
-Callers of the asynchronous I/O services must include the name of a completion
-callback routine and a pointer to some context data for the I/O.
-
-   typedef void (*io_notify_fn)(unsigned long error, void *context);
-
-The "error" parameter in this callback, as well as the "*error" parameter in
-all of the synchronous versions, is a bitset (instead of a simple error value).
-In the case of an write-I/O to multiple regions, this bitset allows dm-io to
-indicate success or failure on each individual region.
-
-Before using any of the dm-io services, the user should call dm_io_get()
-and specify the number of pages they expect to perform I/O on concurrently.
-Dm-io will attempt to resize its mempool to make sure enough pages are
-always available in order to avoid unnecessary waiting while performing I/O.
-
-When the user is finished using the dm-io services, they should call
-dm_io_put() and specify the same number of pages that were given on the
-dm_io_get() call.
-

doc/kernel/kcopyd.txt

@@ -1,47 +0,0 @@
-kcopyd
-======
-
-Kcopyd provides the ability to copy a range of sectors from one block-device
-to one or more other block-devices, with an asynchronous completion
-notification. It is used by dm-snapshot and dm-mirror.
-
-Users of kcopyd must first create a client and indicate how many memory pages
-to set aside for their copy jobs. This is done with a call to
-kcopyd_client_create().
-
-   int kcopyd_client_create(unsigned int num_pages,
-                            struct kcopyd_client **result);
-
-To start a copy job, the user must set up io_region structures to describe
-the source and destinations of the copy. Each io_region indicates a
-block-device along with the starting sector and size of the region. The source
-of the copy is given as one io_region structure, and the destinations of the
-copy are given as an array of io_region structures.
-
-   struct io_region {
-      struct block_device *bdev;
-      sector_t sector;
-      sector_t count;
-   };
-
-To start the copy, the user calls kcopyd_copy(), passing in the client
-pointer, pointers to the source and destination io_regions, the name of a
-completion callback routine, and a pointer to some context data for the copy.
-
-   int kcopyd_copy(struct kcopyd_client *kc, struct io_region *from,
-                   unsigned int num_dests, struct io_region *dests,
-                   unsigned int flags, kcopyd_notify_fn fn, void *context);
-
-   typedef void (*kcopyd_notify_fn)(int read_err, unsigned int write_err,
-				    void *context);
-
-When the copy completes, kcopyd will call the user's completion routine,
-passing back the user's context pointer. It will also indicate if a read or
-write error occurred during the copy.
-
-When a user is done with all their copy jobs, they should call
-kcopyd_client_destroy() to delete the kcopyd client, which will release the
-associated memory pages.
-
-   void kcopyd_client_destroy(struct kcopyd_client *kc);
-

doc/kernel/linear.txt

@@ -1,61 +0,0 @@
-dm-linear
-=========
-
-Device-Mapper's "linear" target maps a linear range of the Device-Mapper
-device onto a linear range of another device.  This is the basic building
-block of logical volume managers.
-
-Parameters: <dev path> <offset>
-    <dev path>: Full pathname to the underlying block-device, or a
-                "major:minor" device-number.
-    <offset>: Starting sector within the device.
-
-
-Example scripts
-===============
-[[
-#!/bin/sh
-# Create an identity mapping for a device
-echo "0 `blockdev --getsize $1` linear $1 0" | dmsetup create identity
-]]
-
-
-[[
-#!/bin/sh
-# Join 2 devices together
-size1=`blockdev --getsize $1`
-size2=`blockdev --getsize $2`
-echo "0 $size1 linear $1 0
-$size1 $size2 linear $2 0" | dmsetup create joined
-]]
-
-
-[[
-#!/usr/bin/perl -w
-# Split a device into 4M chunks and then join them together in reverse order.
-
-my $name = "reverse";
-my $extent_size = 4 * 1024 * 2;
-my $dev = $ARGV[0];
-my $table = "";
-my $count = 0;
-
-if (!defined($dev)) {
-        die("Please specify a device.\n");
-}
-
-my $dev_size = `blockdev --getsize $dev`;
-my $extents = int($dev_size / $extent_size) -
-              (($dev_size % $extent_size) ? 1 : 0);
-
-while ($extents > 0) {
-        my $this_start = $count * $extent_size;
-        $extents--;
-        $count++;
-        my $this_offset = $extents * $extent_size;
-
-        $table .= "$this_start $extent_size linear $dev $this_offset\n";
-}
-
-`echo \"$table\" | dmsetup create $name`;
-]]

doc/kernel/log.txt

@@ -1,54 +0,0 @@
-Device-Mapper Logging
-=====================
-The device-mapper logging code is used by some of the device-mapper
-RAID targets to track regions of the disk that are not consistent.
-A region (or portion of the address space) of the disk may be
-inconsistent because a RAID stripe is currently being operated on or
-a machine died while the region was being altered.  In the case of
-mirrors, a region would be considered dirty/inconsistent while you
-are writing to it because the writes need to be replicated for all
-the legs of the mirror and may not reach the legs at the same time.
-Once all writes are complete, the region is considered clean again.
-
-There is a generic logging interface that the device-mapper RAID
-implementations use to perform logging operations (see
-dm_dirty_log_type in include/linux/dm-dirty-log.h).  Various different
-logging implementations are available and provide different
-capabilities.  The list includes:
-
-Type		Files
-====		=====
-disk		drivers/md/dm-log.c
-core		drivers/md/dm-log.c
-userspace	drivers/md/dm-log-userspace* include/linux/dm-log-userspace.h
-
-The "disk" log type
--------------------
-This log implementation commits the log state to disk.  This way, the
-logging state survives reboots/crashes.
-
-The "core" log type
--------------------
-This log implementation keeps the log state in memory.  The log state
-will not survive a reboot or crash, but there may be a small boost in
-performance.  This method can also be used if no storage device is
-available for storing log state.
-
-The "userspace" log type
-------------------------
-This log type simply provides a way to export the log API to userspace,
-so log implementations can be done there.  This is done by forwarding most
-logging requests to userspace, where a daemon receives and processes the
-request.
-
-The structure used for communication between kernel and userspace are
-located in include/linux/dm-log-userspace.h.  Due to the frequency,
-diversity, and 2-way communication nature of the exchanges between
-kernel and userspace, 'connector' is used as the interface for
-communication.
-
-There are currently two userspace log implementations that leverage this
-framework - "clustered-disk" and "clustered-core".  These implementations
-provide a cluster-coherent log for shared-storage.  Device-mapper mirroring
-can be used in a shared-storage environment when the cluster log implementations
-are employed.

doc/kernel/persistent-data.txt

@@ -1,84 +0,0 @@
-Introduction
-============
-
-The more-sophisticated device-mapper targets require complex metadata
-that is managed in kernel.  In late 2010 we were seeing that various
-different targets were rolling their own data structures, for example:
-
-- Mikulas Patocka's multisnap implementation
-- Heinz Mauelshagen's thin provisioning target
-- Another btree-based caching target posted to dm-devel
-- Another multi-snapshot target based on a design of Daniel Phillips
-
-Maintaining these data structures takes a lot of work, so if possible
-we'd like to reduce the number.
-
-The persistent-data library is an attempt to provide a re-usable
-framework for people who want to store metadata in device-mapper
-targets.  It's currently used by the thin-provisioning target and an
-upcoming hierarchical storage target.
-
-Overview
-========
-
-The main documentation is in the header files which can all be found
-under drivers/md/persistent-data.
-
-The block manager
------------------
-
-dm-block-manager.[hc]
-
-This provides access to the data on disk in fixed sized-blocks.  There
-is a read/write locking interface to prevent concurrent accesses, and
-keep data that is being used in the cache.
-
-Clients of persistent-data are unlikely to use this directly.
-
-The transaction manager
------------------------
-
-dm-transaction-manager.[hc]
-
-This restricts access to blocks and enforces copy-on-write semantics.
-The only way you can get hold of a writable block through the
-transaction manager is by shadowing an existing block (ie. doing
-copy-on-write) or allocating a fresh one.  Shadowing is elided within
-the same transaction so performance is reasonable.  The commit method
-ensures that all data is flushed before it writes the superblock.
-On power failure your metadata will be as it was when last committed.
-
-The Space Maps
---------------
-
-dm-space-map.h
-dm-space-map-metadata.[hc]
-dm-space-map-disk.[hc]
-
-On-disk data structures that keep track of reference counts of blocks.
-Also acts as the allocator of new blocks.  Currently two
-implementations: a simpler one for managing blocks on a different
-device (eg. thinly-provisioned data blocks); and one for managing
-the metadata space.  The latter is complicated by the need to store
-its own data within the space it's managing.
-
-The data structures
--------------------
-
-dm-btree.[hc]
-dm-btree-remove.c
-dm-btree-spine.c
-dm-btree-internal.h
-
-Currently there is only one data structure, a hierarchical btree.
-There are plans to add more.  For example, something with an
-array-like interface would see a lot of use.
-
-The btree is 'hierarchical' in that you can define it to be composed
-of nested btrees, and take multiple keys.  For example, the
-thin-provisioning target uses a btree with two levels of nesting.
-The first maps a device id to a mapping tree, and that in turn maps a
-virtual block to a physical block.
-
-Values stored in the btrees can have arbitrary size.  Keys are always
-64bits, although nesting allows you to use multiple keys.

doc/kernel/queue-length.txt

@@ -1,39 +0,0 @@
-dm-queue-length
-===============
-
-dm-queue-length is a path selector module for device-mapper targets,
-which selects a path with the least number of in-flight I/Os.
-The path selector name is 'queue-length'.
-
-Table parameters for each path: [<repeat_count>]
-	<repeat_count>: The number of I/Os to dispatch using the selected
-			path before switching to the next path.
-			If not given, internal default is used. To check
-			the default value, see the activated table.
-
-Status for each path: <status> <fail-count> <in-flight>
-	<status>: 'A' if the path is active, 'F' if the path is failed.
-	<fail-count>: The number of path failures.
-	<in-flight>: The number of in-flight I/Os on the path.
-
-
-Algorithm
-=========
-
-dm-queue-length increments/decrements 'in-flight' when an I/O is
-dispatched/completed respectively.
-dm-queue-length selects a path with the minimum 'in-flight'.
-
-
-Examples
-========
-In case that 2 paths (sda and sdb) are used with repeat_count == 128.
-
-# echo "0 10 multipath 0 0 1 1 queue-length 0 2 1 8:0 128 8:16 128" \
-  dmsetup create test
-#
-# dmsetup table
-test: 0 10 multipath 0 0 1 1 queue-length 0 2 1 8:0 128 8:16 128
-#
-# dmsetup status
-test: 0 10 multipath 2 0 0 0 1 1 E 0 2 1 8:0 A 0 0 8:16 A 0 0

doc/kernel/raid.txt

@@ -1,224 +0,0 @@
-dm-raid
-=======
-
-The device-mapper RAID (dm-raid) target provides a bridge from DM to MD.
-It allows the MD RAID drivers to be accessed using a device-mapper
-interface.
-
-
-Mapping Table Interface
------------------------
-The target is named "raid" and it accepts the following parameters:
-
-  <raid_type> <#raid_params> <raid_params> \
-    <#raid_devs> <metadata_dev0> <dev0> [.. <metadata_devN> <devN>]
-
-<raid_type>:
-  raid1		RAID1 mirroring
-  raid4		RAID4 dedicated parity disk
-  raid5_la	RAID5 left asymmetric
-		- rotating parity 0 with data continuation
-  raid5_ra	RAID5 right asymmetric
-		- rotating parity N with data continuation
-  raid5_ls	RAID5 left symmetric
-		- rotating parity 0 with data restart
-  raid5_rs 	RAID5 right symmetric
-		- rotating parity N with data restart
-  raid6_zr	RAID6 zero restart
-		- rotating parity zero (left-to-right) with data restart
-  raid6_nr	RAID6 N restart
-		- rotating parity N (right-to-left) with data restart
-  raid6_nc	RAID6 N continue
-		- rotating parity N (right-to-left) with data continuation
-  raid10        Various RAID10 inspired algorithms chosen by additional params
-		- RAID10: Striped Mirrors (aka 'Striping on top of mirrors')
-		- RAID1E: Integrated Adjacent Stripe Mirroring
-		- RAID1E: Integrated Offset Stripe Mirroring
-		-  and other similar RAID10 variants
-
-  Reference: Chapter 4 of
-  http://www.snia.org/sites/default/files/SNIA_DDF_Technical_Position_v2.0.pdf
-
-<#raid_params>: The number of parameters that follow.
-
-<raid_params> consists of
-    Mandatory parameters:
-        <chunk_size>: Chunk size in sectors.  This parameter is often known as
-		      "stripe size".  It is the only mandatory parameter and
-		      is placed first.
-
-    followed by optional parameters (in any order):
-	[sync|nosync]   Force or prevent RAID initialization.
-
-	[rebuild <idx>]	Rebuild drive number 'idx' (first drive is 0).
-
-	[daemon_sleep <ms>]
-		Interval between runs of the bitmap daemon that
-		clear bits.  A longer interval means less bitmap I/O but
-		resyncing after a failure is likely to take longer.
-
-	[min_recovery_rate <kB/sec/disk>]  Throttle RAID initialization
-	[max_recovery_rate <kB/sec/disk>]  Throttle RAID initialization
-	[write_mostly <idx>]		   Mark drive index 'idx' write-mostly.
-	[max_write_behind <sectors>]       See '--write-behind=' (man mdadm)
-	[stripe_cache <sectors>]           Stripe cache size (RAID 4/5/6 only)
-	[region_size <sectors>]
-		The region_size multiplied by the number of regions is the
-		logical size of the array.  The bitmap records the device
-		synchronisation state for each region.
-
-        [raid10_copies   <# copies>]
-        [raid10_format   <near|far|offset>]
-		These two options are used to alter the default layout of
-		a RAID10 configuration.  The number of copies is can be
-		specified, but the default is 2.  There are also three
-		variations to how the copies are laid down - the default
-		is "near".  Near copies are what most people think of with
-		respect to mirroring.  If these options are left unspecified,
-		or 'raid10_copies 2' and/or 'raid10_format near' are given,
-		then the layouts for 2, 3 and 4 devices	are:
-		2 drives         3 drives          4 drives
-		--------         ----------        --------------
-		A1  A1           A1  A1  A2        A1  A1  A2  A2
-		A2  A2           A2  A3  A3        A3  A3  A4  A4
-		A3  A3           A4  A4  A5        A5  A5  A6  A6
-		A4  A4           A5  A6  A6        A7  A7  A8  A8
-		..  ..           ..  ..  ..        ..  ..  ..  ..
-		The 2-device layout is equivalent 2-way RAID1.  The 4-device
-		layout is what a traditional RAID10 would look like.  The
-		3-device layout is what might be called a 'RAID1E - Integrated
-		Adjacent Stripe Mirroring'.
-
-		If 'raid10_copies 2' and 'raid10_format far', then the layouts
-		for 2, 3 and 4 devices are:
-		2 drives             3 drives             4 drives
-		--------             --------------       --------------------
-		A1  A2               A1   A2   A3         A1   A2   A3   A4
-		A3  A4               A4   A5   A6         A5   A6   A7   A8
-		A5  A6               A7   A8   A9         A9   A10  A11  A12
-		..  ..               ..   ..   ..         ..   ..   ..   ..
-		A2  A1               A3   A1   A2         A2   A1   A4   A3
-		A4  A3               A6   A4   A5         A6   A5   A8   A7
-		A6  A5               A9   A7   A8         A10  A9   A12  A11
-		..  ..               ..   ..   ..         ..   ..   ..   ..
-
-		If 'raid10_copies 2' and 'raid10_format offset', then the
-		layouts for 2, 3 and 4 devices are:
-		2 drives       3 drives           4 drives
-		--------       ------------       -----------------
-		A1  A2         A1  A2  A3         A1  A2  A3  A4
-		A2  A1         A3  A1  A2         A2  A1  A4  A3
-		A3  A4         A4  A5  A6         A5  A6  A7  A8
-		A4  A3         A6  A4  A5         A6  A5  A8  A7
-		A5  A6         A7  A8  A9         A9  A10 A11 A12
-		A6  A5         A9  A7  A8         A10 A9  A12 A11
-		..  ..         ..  ..  ..         ..  ..  ..  ..
-		Here we see layouts closely akin to 'RAID1E - Integrated
-		Offset Stripe Mirroring'.
-
-<#raid_devs>: The number of devices composing the array.
-	Each device consists of two entries.  The first is the device
-	containing the metadata (if any); the second is the one containing the
-	data.
-
-	If a drive has failed or is missing at creation time, a '-' can be
-	given for both the metadata and data drives for a given position.
-
-
-Example Tables
---------------
-# RAID4 - 4 data drives, 1 parity (no metadata devices)
-# No metadata devices specified to hold superblock/bitmap info
-# Chunk size of 1MiB
-# (Lines separated for easy reading)
-
-0 1960893648 raid \
-        raid4 1 2048 \
-        5 - 8:17 - 8:33 - 8:49 - 8:65 - 8:81
-
-# RAID4 - 4 data drives, 1 parity (with metadata devices)
-# Chunk size of 1MiB, force RAID initialization,
-#       min recovery rate at 20 kiB/sec/disk
-
-0 1960893648 raid \
-        raid4 4 2048 sync min_recovery_rate 20 \
-        5 8:17 8:18 8:33 8:34 8:49 8:50 8:65 8:66 8:81 8:82
-
-
-Status Output
--------------
-'dmsetup table' displays the table used to construct the mapping.
-The optional parameters are always printed in the order listed
-above with "sync" or "nosync" always output ahead of the other
-arguments, regardless of the order used when originally loading the table.
-Arguments that can be repeated are ordered by value.
-
-
-'dmsetup status' yields information on the state and health of the array.
-The output is as follows (normally a single line, but expanded here for
-clarity):
-1: <s> <l> raid \
-2:      <raid_type> <#devices> <health_chars> \
-3:      <sync_ratio> <sync_action> <mismatch_cnt>
-
-Line 1 is the standard output produced by device-mapper.
-Line 2 & 3 are produced by the raid target and are best explained by example:
-        0 1960893648 raid raid4 5 AAAAA 2/490221568 init 0
-Here we can see the RAID type is raid4, there are 5 devices - all of
-which are 'A'live, and the array is 2/490221568 complete with its initial
-recovery.  Here is a fuller description of the individual fields:
-	<raid_type>     Same as the <raid_type> used to create the array.
-	<health_chars>  One char for each device, indicating: 'A' = alive and
-			in-sync, 'a' = alive but not in-sync, 'D' = dead/failed.
-	<sync_ratio>    The ratio indicating how much of the array has undergone
-			the process described by 'sync_action'.  If the
-			'sync_action' is "check" or "repair", then the process
-			of "resync" or "recover" can be considered complete.
-	<sync_action>   One of the following possible states:
-			idle    - No synchronization action is being performed.
-			frozen  - The current action has been halted.
-			resync  - Array is undergoing its initial synchronization
-				  or is resynchronizing after an unclean shutdown
-				  (possibly aided by a bitmap).
-			recover - A device in the array is being rebuilt or
-				  replaced.
-			check   - A user-initiated full check of the array is
-				  being performed.  All blocks are read and
-				  checked for consistency.  The number of
-				  discrepancies found are recorded in
-				  <mismatch_cnt>.  No changes are made to the
-				  array by this action.
-			repair  - The same as "check", but discrepancies are
-				  corrected.
-			reshape - The array is undergoing a reshape.
-	<mismatch_cnt>  The number of discrepancies found between mirror copies
-			in RAID1/10 or wrong parity values found in RAID4/5/6.
-			This value is valid only after a "check" of the array
-			is performed.  A healthy array has a 'mismatch_cnt' of 0.
-
-Message Interface
------------------
-The dm-raid target will accept certain actions through the 'message' interface.
-('man dmsetup' for more information on the message interface.)  These actions
-include:
-	"idle"   - Halt the current sync action.
-	"frozen" - Freeze the current sync action.
-	"resync" - Initiate/continue a resync.
-	"recover"- Initiate/continue a recover process.
-	"check"  - Initiate a check (i.e. a "scrub") of the array.
-	"repair" - Initiate a repair of the array.
-	"reshape"- Currently unsupported (-EINVAL).
-
-Version History
----------------
-1.0.0	Initial version.  Support for RAID 4/5/6
-1.1.0	Added support for RAID 1
-1.2.0	Handle creation of arrays that contain failed devices.
-1.3.0	Added support for RAID 10
-1.3.1	Allow device replacement/rebuild for RAID 10
-1.3.2   Fix/improve redundancy checking for RAID10
-1.4.0	Non-functional change.  Removes arg from mapping function.
-1.4.1   RAID10 fix redundancy validation checks (commit 55ebbb5).
-1.4.2   Add RAID10 "far" and "offset" algorithm support.
-1.5.0   Add message interface to allow manipulation of the sync_action.
-	New status (STATUSTYPE_INFO) fields: sync_action and mismatch_cnt.

doc/kernel/service-time.txt

@@ -1,91 +0,0 @@
-dm-service-time
-===============
-
-dm-service-time is a path selector module for device-mapper targets,
-which selects a path with the shortest estimated service time for
-the incoming I/O.
-
-The service time for each path is estimated by dividing the total size
-of in-flight I/Os on a path with the performance value of the path.
-The performance value is a relative throughput value among all paths
-in a path-group, and it can be specified as a table argument.
-
-The path selector name is 'service-time'.
-
-Table parameters for each path: [<repeat_count> [<relative_throughput>]]
-	<repeat_count>: The number of I/Os to dispatch using the selected
-			path before switching to the next path.
-			If not given, internal default is used.  To check
-			the default value, see the activated table.
-	<relative_throughput>: The relative throughput value of the path
-			among all paths in the path-group.
-			The valid range is 0-100.
-			If not given, minimum value '1' is used.
-			If '0' is given, the path isn't selected while
-			other paths having a positive value are available.
-
-Status for each path: <status> <fail-count> <in-flight-size> \
-		      <relative_throughput>
-	<status>: 'A' if the path is active, 'F' if the path is failed.
-	<fail-count>: The number of path failures.
-	<in-flight-size>: The size of in-flight I/Os on the path.
-	<relative_throughput>: The relative throughput value of the path
-			among all paths in the path-group.
-
-
-Algorithm
-=========
-
-dm-service-time adds the I/O size to 'in-flight-size' when the I/O is
-dispatched and subtracts when completed.
-Basically, dm-service-time selects a path having minimum service time
-which is calculated by:
-
-	('in-flight-size' + 'size-of-incoming-io') / 'relative_throughput'
-
-However, some optimizations below are used to reduce the calculation
-as much as possible.
-
-	1. If the paths have the same 'relative_throughput', skip
-	   the division and just compare the 'in-flight-size'.
-
-	2. If the paths have the same 'in-flight-size', skip the division
-	   and just compare the 'relative_throughput'.
-
-	3. If some paths have non-zero 'relative_throughput' and others
-	   have zero 'relative_throughput', ignore those paths with zero
-	   'relative_throughput'.
-
-If such optimizations can't be applied, calculate service time, and
-compare service time.
-If calculated service time is equal, the path having maximum
-'relative_throughput' may be better.  So compare 'relative_throughput'
-then.
-
-
-Examples
-========
-In case that 2 paths (sda and sdb) are used with repeat_count == 128
-and sda has an average throughput 1GB/s and sdb has 4GB/s,
-'relative_throughput' value may be '1' for sda and '4' for sdb.
-
-# echo "0 10 multipath 0 0 1 1 service-time 0 2 2 8:0 128 1 8:16 128 4" \
-  dmsetup create test
-#
-# dmsetup table
-test: 0 10 multipath 0 0 1 1 service-time 0 2 2 8:0 128 1 8:16 128 4
-#
-# dmsetup status
-test: 0 10 multipath 2 0 0 0 1 1 E 0 2 2 8:0 A 0 0 1 8:16 A 0 0 4
-
-
-Or '2' for sda and '8' for sdb would be also true.
-
-# echo "0 10 multipath 0 0 1 1 service-time 0 2 2 8:0 128 2 8:16 128 8" \
-  dmsetup create test
-#
-# dmsetup table
-test: 0 10 multipath 0 0 1 1 service-time 0 2 2 8:0 128 2 8:16 128 8
-#
-# dmsetup status
-test: 0 10 multipath 2 0 0 0 1 1 E 0 2 2 8:0 A 0 0 2 8:16 A 0 0 8

doc/kernel/snapshot.txt

@@ -1,168 +0,0 @@
-Device-mapper snapshot support
-==============================
-
-Device-mapper allows you, without massive data copying:
-
-*) To create snapshots of any block device i.e. mountable, saved states of
-the block device which are also writable without interfering with the
-original content;
-*) To create device "forks", i.e. multiple different versions of the
-same data stream.
-*) To merge a snapshot of a block device back into the snapshot's origin
-device.
-
-In the first two cases, dm copies only the chunks of data that get
-changed and uses a separate copy-on-write (COW) block device for
-storage.
-
-For snapshot merge the contents of the COW storage are merged back into
-the origin device.
-
-
-There are three dm targets available:
-snapshot, snapshot-origin, and snapshot-merge.
-
-*) snapshot-origin <origin>
-
-which will normally have one or more snapshots based on it.
-Reads will be mapped directly to the backing device. For each write, the
-original data will be saved in the <COW device> of each snapshot to keep
-its visible content unchanged, at least until the <COW device> fills up.
-
-
-*) snapshot <origin> <COW device> <persistent?> <chunksize>
-
-A snapshot of the <origin> block device is created. Changed chunks of
-<chunksize> sectors will be stored on the <COW device>.  Writes will
-only go to the <COW device>.  Reads will come from the <COW device> or
-from <origin> for unchanged data.  <COW device> will often be
-smaller than the origin and if it fills up the snapshot will become
-useless and be disabled, returning errors.  So it is important to monitor
-the amount of free space and expand the <COW device> before it fills up.
-
-<persistent?> is P (Persistent) or N (Not persistent - will not survive
-after reboot).
-The difference is that for transient snapshots less metadata must be
-saved on disk - they can be kept in memory by the kernel.
-
-
-* snapshot-merge <origin> <COW device> <persistent> <chunksize>
-
-takes the same table arguments as the snapshot target except it only
-works with persistent snapshots.  This target assumes the role of the
-"snapshot-origin" target and must not be loaded if the "snapshot-origin"
-is still present for <origin>.
-
-Creates a merging snapshot that takes control of the changed chunks
-stored in the <COW device> of an existing snapshot, through a handover
-procedure, and merges these chunks back into the <origin>.  Once merging
-has started (in the background) the <origin> may be opened and the merge
-will continue while I/O is flowing to it.  Changes to the <origin> are
-deferred until the merging snapshot's corresponding chunk(s) have been
-merged.  Once merging has started the snapshot device, associated with
-the "snapshot" target, will return -EIO when accessed.
-
-
-How snapshot is used by LVM2
-============================
-When you create the first LVM2 snapshot of a volume, four dm devices are used:
-
-1) a device containing the original mapping table of the source volume;
-2) a device used as the <COW device>;
-3) a "snapshot" device, combining #1 and #2, which is the visible snapshot
-   volume;
-4) the "original" volume (which uses the device number used by the original
-   source volume), whose table is replaced by a "snapshot-origin" mapping
-   from device #1.
-
-A fixed naming scheme is used, so with the following commands:
-
-lvcreate -L 1G -n base volumeGroup
-lvcreate -L 100M --snapshot -n snap volumeGroup/base
-
-we'll have this situation (with volumes in above order):
-
-# dmsetup table|grep volumeGroup
-
-volumeGroup-base-real: 0 2097152 linear 8:19 384
-volumeGroup-snap-cow: 0 204800 linear 8:19 2097536
-volumeGroup-snap: 0 2097152 snapshot 254:11 254:12 P 16
-volumeGroup-base: 0 2097152 snapshot-origin 254:11
-
-# ls -lL /dev/mapper/volumeGroup-*
-brw-------  1 root root 254, 11 29 ago 18:15 /dev/mapper/volumeGroup-base-real
-brw-------  1 root root 254, 12 29 ago 18:15 /dev/mapper/volumeGroup-snap-cow
-brw-------  1 root root 254, 13 29 ago 18:15 /dev/mapper/volumeGroup-snap
-brw-------  1 root root 254, 10 29 ago 18:14 /dev/mapper/volumeGroup-base
-
-
-How snapshot-merge is used by LVM2
-==================================
-A merging snapshot assumes the role of the "snapshot-origin" while
-merging.  As such the "snapshot-origin" is replaced with
-"snapshot-merge".  The "-real" device is not changed and the "-cow"
-device is renamed to <origin name>-cow to aid LVM2's cleanup of the
-merging snapshot after it completes.  The "snapshot" that hands over its
-COW device to the "snapshot-merge" is deactivated (unless using lvchange
---refresh); but if it is left active it will simply return I/O errors.
-
-A snapshot will merge into its origin with the following command:
-
-lvconvert --merge volumeGroup/snap
-
-we'll now have this situation:
-
-# dmsetup table|grep volumeGroup
-
-volumeGroup-base-real: 0 2097152 linear 8:19 384
-volumeGroup-base-cow: 0 204800 linear 8:19 2097536
-volumeGroup-base: 0 2097152 snapshot-merge 254:11 254:12 P 16
-
-# ls -lL /dev/mapper/volumeGroup-*
-brw-------  1 root root 254, 11 29 ago 18:15 /dev/mapper/volumeGroup-base-real
-brw-------  1 root root 254, 12 29 ago 18:16 /dev/mapper/volumeGroup-base-cow
-brw-------  1 root root 254, 10 29 ago 18:16 /dev/mapper/volumeGroup-base
-
-
-How to determine when a merging is complete
-===========================================
-The snapshot-merge and snapshot status lines end with:
-  <sectors_allocated>/<total_sectors> <metadata_sectors>
-
-Both <sectors_allocated> and <total_sectors> include both data and metadata.
-During merging, the number of sectors allocated gets smaller and
-smaller.  Merging has finished when the number of sectors holding data
-is zero, in other words <sectors_allocated> == <metadata_sectors>.
-
-Here is a practical example (using a hybrid of lvm and dmsetup commands):
-
-# lvs
-  LV      VG          Attr   LSize Origin  Snap%  Move Log Copy%  Convert
-  base    volumeGroup owi-a- 4.00g
-  snap    volumeGroup swi-a- 1.00g base  18.97
-
-# dmsetup status volumeGroup-snap
-0 8388608 snapshot 397896/2097152 1560
-                                  ^^^^ metadata sectors
-
-# lvconvert --merge -b volumeGroup/snap
-  Merging of volume snap started.
-
-# lvs volumeGroup/snap
-  LV      VG          Attr   LSize Origin  Snap%  Move Log Copy%  Convert
-  base    volumeGroup Owi-a- 4.00g          17.23
-
-# dmsetup status volumeGroup-base
-0 8388608 snapshot-merge 281688/2097152 1104
-
-# dmsetup status volumeGroup-base
-0 8388608 snapshot-merge 180480/2097152 712
-
-# dmsetup status volumeGroup-base
-0 8388608 snapshot-merge 16/2097152 16
-
-Merging has finished.
-
-# lvs
-  LV      VG          Attr   LSize Origin  Snap%  Move Log Copy%  Convert
-  base    volumeGroup owi-a- 4.00g

doc/kernel/striped.txt

@@ -1,57 +0,0 @@
-dm-stripe
-=========
-
-Device-Mapper's "striped" target is used to create a striped (i.e. RAID-0)
-device across one or more underlying devices. Data is written in "chunks",
-with consecutive chunks rotating among the underlying devices. This can
-potentially provide improved I/O throughput by utilizing several physical
-devices in parallel.
-
-Parameters: <num devs> <chunk size> [<dev path> <offset>]+
-    <num devs>: Number of underlying devices.
-    <chunk size>: Size of each chunk of data. Must be at least as
-                  large as the system's PAGE_SIZE.
-    <dev path>: Full pathname to the underlying block-device, or a
-                "major:minor" device-number.
-    <offset>: Starting sector within the device.
-
-One or more underlying devices can be specified. The striped device size must
-be a multiple of the chunk size multiplied by the number of underlying devices.
-
-
-Example scripts
-===============
-
-[[
-#!/usr/bin/perl -w
-# Create a striped device across any number of underlying devices. The device
-# will be called "stripe_dev" and have a chunk-size of 128k.
-
-my $chunk_size = 128 * 2;
-my $dev_name = "stripe_dev";
-my $num_devs = @ARGV;
-my @devs = @ARGV;
-my ($min_dev_size, $stripe_dev_size, $i);
-
-if (!$num_devs) {
-        die("Specify at least one device\n");
-}
-
-$min_dev_size = `blockdev --getsize $devs[0]`;
-for ($i = 1; $i < $num_devs; $i++) {
-        my $this_size = `blockdev --getsize $devs[$i]`;
-        $min_dev_size = ($min_dev_size < $this_size) ?
-                        $min_dev_size : $this_size;
-}
-
-$stripe_dev_size = $min_dev_size * $num_devs;
-$stripe_dev_size -= $stripe_dev_size % ($chunk_size * $num_devs);
-
-$table = "0 $stripe_dev_size striped $num_devs $chunk_size";
-for ($i = 0; $i < $num_devs; $i++) {
-        $table .= " $devs[$i] 0";
-}
-
-`echo $table | dmsetup create $dev_name`;
-]]
-