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empty non-terminals generally lack NSEC RRs, which means we can deduce their existance only from the fact that there
are other RRs that contain them in their suffix. Specifically, the NSEC proof for NODATA on ENTs works by sending the
NSEC whose next name is a suffix of the queried name to the client. Use this information properly.
Having this information available is useful when we need to check whether various RRs are suitable for proofs. This
information is stored in the RRs as number of labels to skip from the beginning of the owner name to reach the
synthesizing source/signer. Simple accessor calls are then added to retrieve the signer/source from the RR using this
information.
This also moves validation of a a number of RRSIG parameters into a new call dnssec_rrsig_prepare() that as side-effect
initializes the two numeric values.
When proving NODATA DS lookups we need to insist on looking at the parent zone's NSEC RR, not the child zone's.
When proving any other NODATA lookups we need to insist on looking at the child zone's NSEC RR, not the parent's.
Fixes:
==1== by 0x23E44C: remove_marked_symlinks_fd (install.c:453)
==1== by 0x23E256: remove_marked_symlinks_fd (install.c:405)
==1== by 0x23E630: remove_marked_symlinks (install.c:494)
==1== by 0x2427A0: unit_file_disable (install.c:1876)
==1== by 0x18A633: method_disable_unit_files_generic (dbus-manager.c:1760)
==1== by 0x18A6CA: method_disable_unit_files (dbus-manager.c:1768)
==1== by 0x1D8146: method_callbacks_run (bus-objects.c:420)
==1== by 0x1DA9D8: object_find_and_run (bus-objects.c:1257)
==1== by 0x1DB01A: bus_process_object (bus-objects.c:1373)
==1==
==1== 228 (48 direct, 180 indirect) bytes in 2 blocks are definitely lost in loss record 8 of 14
==1== at 0x4C2BBCF: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==1== by 0x4C2DE2F: realloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==1== by 0x23DA60: unit_file_changes_add (install.c:233)
==1== by 0x23DDB2: create_symlink (install.c:298)
==1== by 0x240C5C: install_info_symlink_wants (install.c:1328)
==1== by 0x240FC8: install_info_apply (install.c:1384)
==1== by 0x241211: install_context_apply (install.c:1439)
==1== by 0x242563: unit_file_enable (install.c:1830)
==1== by 0x18A06E: method_enable_unit_files_generic (dbus-manager.c:1650)
==1== by 0x18A141: method_enable_unit_files (dbus-manager.c:1660)
==1== by 0x1D8146: method_callbacks_run (bus-objects.c:420)
==1== by 0x1DA9D8: object_find_and_run (bus-objects.c:1257)
==1==
==1== 467 (144 direct, 323 indirect) bytes in 3 blocks are definitely lost in loss record 9 of 14
==1== at 0x4C2DD9F: realloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==1== by 0x23DA60: unit_file_changes_add (install.c:233)
==1== by 0x23DE97: create_symlink (install.c:320)
==1== by 0x242CFC: unit_file_set_default (install.c:1951)
==1== by 0x18A881: method_set_default_target (dbus-manager.c:1802)
==1== by 0x1D8146: method_callbacks_run (bus-objects.c:420)
==1== by 0x1DA9D8: object_find_and_run (bus-objects.c:1257)
==1== by 0x1DB01A: bus_process_object (bus-objects.c:1373)
==1== by 0x259143: process_message (sd-bus.c:2567)
==1== by 0x259326: process_running (sd-bus.c:2609)
==1== by 0x259BDC: bus_process_internal (sd-bus.c:2798)
==1== by 0x259CAD: sd_bus_process (sd-bus.c:2817)
==1==
==1== LEAK SUMMARY:
==1== definitely lost: 216 bytes in 6 blocks
==1== indirectly lost: 560 bytes in 14 blocks
==1== possibly lost: 0 bytes in 0 blocks
==1== still reachable: 65,536 bytes in 5 blocks
==1== suppressed: 0 bytes in 0 blocks
==1== Reachable blocks (those to which a pointer was found) are not shown.
==1== To see them, rerun with: --leak-check=full --show-leak-kinds=all
==1==
According to bootup(7) and the behavior when /usr is specified in /etc/fstab, the /sysroot/usr mount should be before initrd-fs.target, not before initrd-root-fs.target.
The sysroot mount is already taken care of by the add_sysroot_mount function. With this condition left in, we can get something like this:
initrd-root-fs.target.requires
`-- usr.mount -> /run/systemd/generator/usr.mount
in the main system (i.e., not in the initramfs). In the initramfs, the previous condition already kicks in.
Fixes:
==1== HEAP SUMMARY:
==1== in use at exit: 67,182 bytes in 91 blocks
==1== total heap usage: 70,485 allocs, 70,394 frees, 42,184,635 bytes
allocated
==1==
==1== 5,742 (696 direct, 5,046 indirect) bytes in 29 blocks are
definitely lost in loss record 4 of 7
==1== at 0x4C2DD9F: realloc (in
/usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==1== by 0x21ADDD: realloc_multiply (alloc-util.h:67)
==1== by 0x21BFB0: strv_push (strv.c:448)
==1== by 0x21C245: strv_consume (strv.c:520)
==1== by 0x21C33C: strv_extend (strv.c:559)
==1== by 0x278AD7: unit_write_drop_in (unit.c:3352)
==1== by 0x278EEB: unit_write_drop_in_private (unit.c:3403)
==1== by 0x190C21: bus_service_set_transient_property
(dbus-service.c:254)
==1== by 0x190DBC: bus_service_set_property (dbus-service.c:284)
==1== by 0x18F00E: bus_unit_set_properties (dbus-unit.c:1226)
==1== by 0x186F6A: transient_unit_from_message (dbus-manager.c:683)
==1== by 0x1872B7: method_start_transient_unit (dbus-manager.c:763)
==1==
==1== LEAK SUMMARY:
==1== definitely lost: 696 bytes in 29 blocks
==1== indirectly lost: 5,046 bytes in 58 blocks
==1== possibly lost: 0 bytes in 0 blocks
==1== still reachable: 61,440 bytes in 4 blocks
==1== suppressed: 0 bytes in 0 blocks
If a unit was pulled by a Wants= dependency but its unit file was not
present then we logged this as an error.
However Wants= might be used to configure a soft/optional dependency
on another unit, ie. start an optional service only if it's installed
otherwise simply skip it. In this case emitting an error doesn't look
appropriate.
But it's still an error if the optional dependency exists but its
activation fails for any reasons.
==1== HEAP SUMMARY:
==1== in use at exit: 61,728 bytes in 22 blocks
==1== total heap usage: 258,122 allocs, 258,100 frees, 78,219,628
bytes allocated
==1==
==1== 16 bytes in 1 blocks are definitely lost in loss record 1 of 6
==1== at 0x4C2BBCF: malloc (vg_replace_malloc.c:299)
==1== by 0x1E350E: memdup (alloc-util.c:34)
==1== by 0x135AFB: memdup_multiply (alloc-util.h:74)
==1== by 0x140F97: manager_set_default_rlimits (manager.c:2929)
==1== by 0x1303DA: manager_set_defaults (main.c:737)
==1== by 0x133A02: main (main.c:1718)
==1==
==1== 272 bytes in 17 blocks are definitely lost in loss record 2 of 6
==1== at 0x4C2BBCF: malloc (vg_replace_malloc.c:299)
==1== by 0x1E350E: memdup (alloc-util.c:34)
==1== by 0x135AFB: memdup_multiply (alloc-util.h:74)
==1== by 0x140F97: manager_set_default_rlimits (manager.c:2929)
==1== by 0x1303DA: manager_set_defaults (main.c:737)
==1== by 0x13480D: main (main.c:1828)
==1==
==1== LEAK SUMMARY:
==1== definitely lost: 288 bytes in 18 blocks
==1== indirectly lost: 0 bytes in 0 blocks
==1== possibly lost: 0 bytes in 0 blocks
==1== still reachable: 61,440 bytes in 4 blocks
==1== suppressed: 0 bytes in 0 blocks
==1== Reachable blocks (those to which a pointer was found) are not
shown.
==1== To see them, rerun with: --leak-check=full --show-leak-kinds=all
When a unit was started with "systemctl --user" and it failed, error
messages is printed as "systemctl status". But it should be "systemctl
--user status".
gcc is confused by the common idiom of
return errno ? -errno : -ESOMETHING
and thinks a positive value may be returned. Replace this condition
with errno > 0 to help gcc and avoid many spurious warnings. I filed
a gcc rfe a long time ago, but it hard to say if it will ever be
implemented [1].
Both conventions were used in the codebase, this change makes things
more consistent. This is a follow up to bcb161b023.
[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61846
In contrast to ascii_strcasecmp_nn() it takes two character buffers with their individual length. It will then compare
the buffers up the smaller size of the two buffers, and finally the length themselves.
Properly handle RRs that begin with an asterisk label. These are the unexpanded forms of wildcard domains and appear in
NSEC RRs for example. We need to make sure we handle the signatures of these RRs properly, since they mostly are
considered normal RRs, except that the RRSIG labels counter is one off for them, as the asterisk label is always
excluded of the signature.
