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* tree-wide: reset the cleaned-up variable in cleanup functionsZbigniew Jędrzejewski-Szmek2021-02-161-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the cleanup function returns the appropriate type, use that to reset the variable. For other functions (usually the foreign ones which return void), add an explicit value to reset to. This causes a bit of code churn, but I think it might be worth it. In a following patch static destructors will be called from a fuzzer, and this change allows them to be called multiple times. But I think such a change might help with detecting unitialized code reuse too. We hit various bugs like this, and things are more obvious when a pointer has been set to NULL. I was worried whether this change increases text size, but it doesn't seem to: -Dbuildtype=debug: before "tree-wide: return NULL from freeing functions": -rwxrwxr-x 1 zbyszek zbyszek 4117672 Feb 16 14:36 build/libsystemd.so.0.30.0* -rwxrwxr-x 1 zbyszek zbyszek 4494520 Feb 16 15:06 build/systemd* after "tree-wide: return NULL from freeing functions": -rwxrwxr-x 1 zbyszek zbyszek 4117672 Feb 16 14:36 build/libsystemd.so.0.30.0* -rwxrwxr-x 1 zbyszek zbyszek 4494576 Feb 16 15:10 build/systemd* now: -rwxrwxr-x 1 zbyszek zbyszek 4117672 Feb 16 14:36 build/libsystemd.so.0.30.0* -rwxrwxr-x 1 zbyszek zbyszek 4494640 Feb 16 15:15 build/systemd* -Dbuildtype=release: before "tree-wide: return NULL from freeing functions": -rwxrwxr-x 1 zbyszek zbyszek 5252256 Feb 14 14:47 build-rawhide/libsystemd.so.0.30.0* -rwxrwxr-x 1 zbyszek zbyszek 1834184 Feb 16 15:09 build-rawhide/systemd* after "tree-wide: return NULL from freeing functions": -rwxrwxr-x 1 zbyszek zbyszek 5252256 Feb 14 14:47 build-rawhide/libsystemd.so.0.30.0* -rwxrwxr-x 1 zbyszek zbyszek 1834184 Feb 16 15:10 build-rawhide/systemd* now: -rwxrwxr-x 1 zbyszek zbyszek 5252256 Feb 14 14:47 build-rawhide/libsystemd.so.0.30.0* -rwxrwxr-x 1 zbyszek zbyszek 1834184 Feb 16 15:16 build-rawhide/systemd* I would expect that the compiler would be able to elide the setting of a variable if the variable is never used again. And this seems to be the case: in optimized builds there is no change in size whatsoever. And the change in size in unoptimized build is negligible. Something strange is happening with size of libsystemd: it's bigger in optimized builds. Something to figure out, but unrelated to this patch.
* license: LGPL-2.1+ -> LGPL-2.1-or-laterYu Watanabe2020-11-091-1/+1
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* shared/acl-util: convert rd,wr,ex to a bitmaskZbigniew Jędrzejewski-Szmek2020-08-271-2/+12
| | | | | | | | | I find this version much more readable. Add replacement defines so that when acl/libacl.h is not available, the ACL_{READ,WRITE,EXECUTE} constants are also defined. Those constants were declared in the kernel headers already in 1da177e4c3f41524e886b7f1b8a0c1f, so they should be the same pretty much everywhere.
* acl-util: beef up add_acls_for_user()Lennart Poettering2020-08-251-1/+1
| | | | | | Let's add support for controlling r/w/x bits separetely. This is useful for using it to control access to directories, where r + x shall be enabled.
* tree-wide: remove Lennart's copyright linesLennart Poettering2018-06-141-4/+0
| | | | | | | | | | | These lines are generally out-of-date, incomplete and unnecessary. With SPDX and git repository much more accurate and fine grained information about licensing and authorship is available, hence let's drop the per-file copyright notice. Of course, removing copyright lines of others is problematic, hence this commit only removes my own lines and leaves all others untouched. It might be nicer if sooner or later those could go away too, making git the only and accurate source of authorship information.
* tree-wide: drop 'This file is part of systemd' blurbLennart Poettering2018-06-141-2/+0
| | | | | | | | | | | | | | | | This part of the copyright blurb stems from the GPL use recommendations: https://www.gnu.org/licenses/gpl-howto.en.html The concept appears to originate in times where version control was per file, instead of per tree, and was a way to glue the files together. Ultimately, we nowadays don't live in that world anymore, and this information is entirely useless anyway, as people are very welcome to copy these files into any projects they like, and they shouldn't have to change bits that are part of our copyright header for that. hence, let's just get rid of this old cruft, and shorten our codebase a bit.
* tree-wide: drop license boilerplateZbigniew Jędrzejewski-Szmek2018-04-061-13/+0
| | | | | | | | | | Files which are installed as-is (any .service and other unit files, .conf files, .policy files, etc), are left as is. My assumption is that SPDX identifiers are not yet that well known, so it's better to retain the extended header to avoid any doubt. I also kept any copyright lines. We can probably remove them, but it'd nice to obtain explicit acks from all involved authors before doing that.
* Add SPDX license identifiers to source files under the LGPLZbigniew Jędrzejewski-Szmek2017-11-191-0/+1
| | | | | This follows what the kernel is doing, c.f. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5fd54ace4721fc5ce2bb5aef6318fcf17f421460.
* build-sys: use #if Y instead of #ifdef Y everywhereZbigniew Jędrzejewski-Szmek2017-10-041-1/+1
| | | | | | | | | | | | | | | The advantage is that is the name is mispellt, cpp will warn us. $ git grep -Ee "conf.set\('(HAVE|ENABLE)_" -l|xargs sed -r -i "s/conf.set\('(HAVE|ENABLE)_/conf.set10('\1_/" $ git grep -Ee '#ifn?def (HAVE|ENABLE)' -l|xargs sed -r -i 's/#ifdef (HAVE|ENABLE)/#if \1/; s/#ifndef (HAVE|ENABLE)/#if ! \1/;' $ git grep -Ee 'if.*defined\(HAVE' -l|xargs sed -i -r 's/defined\((HAVE_[A-Z0-9_]*)\)/\1/g' $ git grep -Ee 'if.*defined\(ENABLE' -l|xargs sed -i -r 's/defined\((ENABLE_[A-Z0-9_]*)\)/\1/g' + manual changes to meson.build squash! build-sys: use #if Y instead of #ifdef Y everywhere v2: - fix incorrect setting of HAVE_LIBIDN2
* tree-wide: remove Emacs lines from all filesDaniel Mack2016-02-101-2/+0
| | | | | This should be handled fine now by .dir-locals.el, so need to carry that stuff in every file.
* journal: move the gist of server_fix_perms to acl-util.[hc]Zbigniew Jędrzejewski-Szmek2015-11-281-0/+1
| | | | | | | | | | | | Most of the function is moved to acl-util.c to make it possible to add tests in subsequent commit. Setting of the mode in server_fix_perms is removed: - we either just created the file ourselves, and the permission be better right, - or the file was already there, and we should not modify the permissions. server_fix_perms is renamed to server_fix_acls to better reflect new meaning, and made static because it is only used in one file.
* tree-wide: sort includes in *.hThomas Hindoe Paaboel Andersen2015-11-181-1/+1
| | | | | This is a continuation of the previous include sort patch, which only sorted for .c files.
* acl-util: various smaller fixes to parse_acl()Lennart Poettering2015-06-171-1/+1
| | | | | | | | | | - Make string parameter const - Don't log some OOM errors, but not others - Don't eat up errors generated by acl_from_text() - Make sure check for success of every single strv_push() call
* journalctl: rework code that checks whether we have access to /var/log/journalLennart Poettering2015-04-221-1/+1
| | | | | | | | - fix some memory leaks on error conditions - handle all error cases properly, and log about failures - move HAVE_ACL and no-HAVE_ACL code closer to each other
* tmpfiles: avoid creating duplicate acl entriesZbigniew Jędrzejewski-Szmek2015-02-241-0/+4
| | | | | | | | https://bugs.freedesktop.org/show_bug.cgi?id=89202 https://bugs.debian.org/778656 Status quo ante can be restored with: getfacl -p /var/log/journal/`cat /etc/machine-id`|grep -v '^#'|sort -u|sudo setfacl --set-file=- /var/log/journal/`cat /etc/machine-id`
* shared/acl-util: add mask only when needed, always add base ACLsZbigniew Jędrzejewski-Szmek2015-01-221-0/+1
| | | | | | | | For ACLs to be valid, a set of entries for user, group, and other must be always present. Always add those entries. While at it, only add the mask ACL if it is actually required, i.e. when at least on ACL for non-owner group or user exists.
* tmpfiles: implement augmenting of existing ACLsZbigniew Jędrzejewski-Szmek2015-01-221-1/+2
| | | | This is much more useful in practice (equivalent to setfacl -m).
* tmpfiles: add 'a' type to set ACLsZbigniew Jędrzejewski-Szmek2015-01-221-6/+13
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* coredump: optionally store coredumps on disk, not in the journalLennart Poettering2014-06-191-0/+8
| | | | | | | | Introduce a new configuration file /etc/systemd/coredump.conf to configure when to place coredumps in the journal and when on disk. Since the coredumps are quite large, default to storing them only on disk.
* journald: DO recalculate the ACL mask, but only if it doesn't existJan Alexander Steffens (heftig)2013-05-301-0/+1
| | | | | | | | Since 11ec7ce, journald isn't setting the ACLs properly anymore if the files had no ACLs to begin with: acl_set_fd fails with EINVAL. An ACL with ACL_USER or ACL_GROUP entries but no ACL_MASK entry is invalid, so make sure a mask exists before trying to set the ACL.
* build-sys: move acl searching code into libsystemd-aclZbigniew Jędrzejewski-Szmek2013-03-221-0/+3
| | | | | This loop over acls is a bit too much to keep inside of another loop.
* use #pragma once instead of foo*foo #define guardsShawn Landden2012-07-191-4/+1
| | | | | | | | | | | | | | | | | #pragma once has been "un-deprecated" in gcc since 3.3, and is widely supported in other compilers. I've been using and maintaining (rebasing) this patch for a while now, as it annoyed me to see #ifndef fooblahfoo, etc all over the place, almost arrogant about the annoyance of having to define all these names to perform a commen but neccicary functionality, when a completely superior alternative exists. I havn't sent it till now, cause its kindof a style change, and it is bad voodoo to mess with style that has been established by more established editors. So feel free to lambast me as a crazy bafoon. v2 - preserve externally used headers
* relicense to LGPLv2.1 (with exceptions)Lennart Poettering2012-04-121-4/+4
| | | | | | | | | | | | | | We finally got the OK from all contributors with non-trivial commits to relicense systemd from GPL2+ to LGPL2.1+. Some udev bits continue to be GPL2+ for now, but we are looking into relicensing them too, to allow free copy/paste of all code within systemd. The bits that used to be MIT continue to be MIT. The big benefit of the relicensing is that closed source code may now link against libsystemd-login.so and friends.
* put acl.la in 'if HAVE_ACL' and rename acl.[ch] to acl-util.[ch]Kay Sievers2012-04-111-0/+27
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