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path: root/src/shared/sleep-config.c
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2016-09-16tree-wide: rename config_parse_many to …_nulstrZbigniew Jędrzejewski-Szmek
In preparation for adding a version which takes a strv.
2016-04-19sleep: Add debug feature to bypass hibernation memory checks. (#3064)Vittorio G (VittGam)
This new feature bypasses checking if a swap partition is mounted or if there is enough swap space available for hibernation to succeed. This can be useful when a system with a Solid State Disk (SSD) has no normal swap partition or file configured, and a custom systemd unit is used to mount a swap file just before hibernating and unmount it just after resuming. Signed-off-by: Vittorio Gambaletta <git-systemd@vittgam.net>
2016-02-23tree-wide: minor formatting inconsistency cleanupsVito Caputo
2016-02-10tree-wide: remove Emacs lines from all filesDaniel Mack
This should be handled fine now by .dir-locals.el, so need to carry that stuff in every file.
2015-12-06shared: include what we useThomas Hindoe Paaboel Andersen
The next step of a general cleanup of our includes. This one mostly adds missing includes but there are a few removals as well.
2015-11-10defs: rework CONF_DIRS_NULSTR() macroLennart Poettering
The macro is generically useful for putting together search paths, hence let's make it truly generic, by dropping the implicit ".d" appending it does, and leave that to the caller. Also rename it from CONF_DIRS_NULSTR() to CONF_PATHS_NULSTR(), since it's not strictly about dirs that way, but any kind of file system path. Also, mark CONF_DIR_SPLIT_USR() as internal macro by renaming it to _CONF_PATHS_SPLIT_USR() so that the leading underscore indicates that it's internal.
2015-11-03util-lib: move CONF_DIRS_NULSTR definition to def.hLennart Poettering
After all, this is not some compiler or C magic, but something very specific to how systemd works, hence let's move it into def.h, and out of macro.h
2015-10-27util-lib: split out allocation calls into alloc-util.[ch]Lennart Poettering
2015-10-27util-lib: split string parsing related calls from util.[ch] into parse-util.[ch]Lennart Poettering
2015-10-25util-lib: split out fd-related operations into fd-util.[ch]Lennart Poettering
There are more than enough to deserve their own .c file, hence move them over.
2015-10-24util-lib: split our string related calls from util.[ch] into its own file ↵Lennart Poettering
string-util.[ch] There are more than enough calls doing string manipulations to deserve its own files, hence do something about it. This patch also sorts the #include blocks of all files that needed to be updated, according to the sorting suggestions from CODING_STYLE. Since pretty much every file needs our string manipulation functions this effectively means that most files have sorted #include blocks now. Also touches a few unrelated include files.
2015-09-30fileio: make get_status_field() more genericAaro Koskinen
All users of get_status_field() expect the field pattern to occur in the beginning of a line, and the delimiter is ':'. Hardcode this into the function, and also skip any whitespace before ':' to support fields in files like /proc/cpuinfo. Add support for returning the full field value (currently stops on first whitespace). Rename the function so it's easier to ensure all callers switch to new semantics.
2015-01-22Assorted format fixesZbigniew Jędrzejewski-Szmek
Types used for pids and uids in various interfaces are unpredictable. Too bad.
2014-11-29systemd-sleep: Support sleep.conf.d directories in the usual search pathsJosh Triplett
2014-11-28treewide: more log_*_errno() conversions, multiline callsMichal Schmidt
Basically: find . -name '*.[ch]' | while read f; do perl -i.mmm -e \ 'local $/; local $_=<>; s/log_(debug|info|notice|warning|error|emergency)\("([^"]*)%s"([^;]*),\s*strerror\(-?([->a-zA-Z_]+)\)\);/log_\1_errno(\4, "\2%m"\3);/gms;print;' \ $f; done Plus manual indentation fixups.
2014-11-28treewide: no need to negate errno for log_*_errno()Michal Schmidt
It corrrectly handles both positive and negative errno values.
2014-11-28treewide: auto-convert the simple cases to log_*_errno()Michal Schmidt
As a followup to 086891e5c1 "log: add an "error" parameter to all low-level logging calls and intrdouce log_error_errno() as log calls that take error numbers", use sed to convert the simple cases to use the new macros: find . -name '*.[ch]' | xargs sed -r -i -e \ 's/log_(debug|info|notice|warning|error|emergency)\("(.*)%s"(.*), strerror\(-([a-zA-Z_]+)\)\);/log_\1_errno(-\4, "\2%m"\3);/' Multi-line log_*() invocations are not covered. And we also should add log_unit_*_errno().
2014-07-31Reject invalid quoted stringsZbigniew Jędrzejewski-Szmek
String which ended in an unfinished quote were accepted, potentially with bad memory accesses. Reject anything which ends in a unfished quote, or contains non-whitespace characters right after the closing quote. _FOREACH_WORD now returns the invalid character in *state. But this return value is not checked anywhere yet. Also, make 'word' and 'state' variables const pointers, and rename 'w' to 'word' in various places. Things are easier to read if the same name is used consistently. mbiebl_> am I correct that something like this doesn't work mbiebl_> ExecStart=/usr/bin/encfs --extpass='/bin/systemd-ask-passwd "Unlock EncFS"' mbiebl_> systemd seems to strip of the quotes mbiebl_> systemctl status shows mbiebl_> ExecStart=/usr/bin/encfs --extpass='/bin/systemd-ask-password Unlock EncFS $RootDir $MountPoint mbiebl_> which is pretty weird
2014-07-16Let config_parse open file where applicableZbigniew Jędrzejewski-Szmek
Special care is needed so that we get an error message if the file failed to parse, but not when it is missing. To avoid duplicating the same error check in every caller, add an additional 'warn' boolean to tell config_parse whether a message should be issued. This makes things both shorter and more robust wrt. to error reporting.
2014-07-15Constify ConfigTableItem tablesZbigniew Jędrzejewski-Szmek
2014-06-22consistently order cleanup attribute before typeThomas Hindoe Paaboel Andersen
2014-06-19coredump: optionally store coredumps on disk, not in the journalLennart Poettering
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.
2014-02-19make gcc shut upLennart Poettering
If -flto is used then gcc will generate a lot more warnings than before, among them a number of use-without-initialization warnings. Most of them without are false positives, but let's make them go away, because it doesn't really matter.
2014-02-13everywhere: always use O_CLOEXEC where it makes senseLennart Poettering
2013-12-31sleep-config: fix double freeZbigniew Jędrzejewski-Szmek
Before 34a3baa4d 'sleep-config: Dereference pointer before check for NULL' oom conditions would not be detected properly. After that commit, a double free was performed. Rework the whole function to be easier to understand, and also replace strv_split_nulstr with strv_new, since we know the strings anyway.
2013-12-30sleep-config: Dereference pointer before check for NULLStefan Beller
This fixes a bug pointed out by http://css.csail.mit.edu/stack/ (Optimization-unstable code) It is a similar fix as f146f5e159 (2013-12-30, core: Forgot to dereference pointer when checking for NULL) To explain this bug consider the following similar, but simpler code: if (!p) free(*p) Assume the if condition evaluates to true, then we will access *p, which means the compiler can assume p is a valid pointer, so it could dereference p and use the value *p. Assuming p as a valid pointer, !p will be false. But initally we assumed the condition evaluates to true. By this reasoning the optimizing compiler can deduce, we have dead code. ("The if will never be taken, as *p must be valid, because otherwise accessing *p inside the if would segfault") This led to an error message of the static code checker, so I checked the code in question. As we access *modes and *states before the check in the changed line of this patch, I assume the line to be wrong and we actually wanted to check for *modes and *states being both non null.
2013-12-24sleep-config: fix useless check for swapfile typeDave Reisner
Since 0c6f1f4ea49 the check was useless, because the kernel will ever only write "partition" or "file" there. OTOH, it is possible that "\\040(deleted)" (escaped " (deleted)") will be added for removed files. This should not happen, so add a warning to detect those cases.
2013-11-07Make hibernation test work for swap filesJan Janssen
Suspend to disk works for swap files too (even if it is located on an ecrypted file system): https://www.kernel.org/doc/Documentation/power/swsusp-and-swap-files.txt
2013-09-17Use first partition in /proc/swaps for hibernation testZbigniew Jędrzejewski-Szmek
It seems that the kernel uses the first configured partition for hibernation. If it is too full, hibernation will fail. Test that directly.
2013-09-16Assume that /proc/meminfo can be missingZbigniew Jędrzejewski-Szmek
Travis tests are failing, probably because /proc/meminfo is not available in the test environment. The same might be true in some virtualized systems, so just treat missing /proc/meminfo as a sign that hibernation is not possible.
2013-09-13Advertise hibernation only if there's enough free swapZbigniew Jędrzejewski-Szmek
Condition that is checked is taken from upower: active(anon) < free swap * 0.98 This is really stupid, because the kernel knows the situation better, e.g. there could be two swap files, and then hibernation would be impossible despite passing this check, or the kernel could start supporting compressed swap and/or compressed hibernation images, and then this this check would be too stringent. Nevertheless, until we have something better, this should at least return a true negative if there's no swap. Logging of capabilities in the journal is changed to not strip leading zeros. I consider this more readable anyway. http://cgit.freedesktop.org/upower/tree/src/up-daemon.c#n613 https://bugzilla.redhat.com/show_bug.cgi?id=1007059
2013-05-07systemd-sleep: it is not an error if the config file is missingZbigniew Jędrzejewski-Szmek
2013-05-06systemd-sleep: add support for freeze and standbyZbigniew Jędrzejewski-Szmek
A new config file /etc/systemd/sleep.conf is added. It is parsed by systemd-sleep and logind. The strings written to /sys/power/disk and /sys/power/state can be configured. This allows people to use different modes of suspend on systems with broken or special hardware. Configuration is shared between systemd-sleep and logind to enable logind to answer the question "can the system be put to sleep" as correctly as possible without actually invoking the action. If the user configured systemd-sleep to only use 'freeze', but current kernel does not support it, logind will properly report that the system cannot be put to sleep. https://bugs.freedesktop.org/show_bug.cgi?id=57793 https://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=7e73c5ae6e7991a6c01f6d096ff8afaef4458c36 http://lists.freedesktop.org/archives/systemd-devel/2013-February/009238.html SYSTEM_CONFIG_FILE and USER_CONFIG_FILE defines were removed since they were used in only a few places and with the addition of /etc/systemd/sleep.conf it becomes easier to just append the name of each file to the dir name.