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2013-06-20logind: add infrastructure to keep track of machines, and move to slicesLennart Poettering
- This changes all logind cgroup objects to use slice objects rather than fixed croup locations. - logind can now collect minimal information about running VMs/containers. As fixed cgroup locations can no longer be used we need an entity that keeps track of machine cgroups in whatever slice they might be located. Since logind already keeps track of users, sessions and seats this is a trivial addition. - nspawn will now register with logind and pass various bits of metadata along. A new option "--slice=" has been added to place the container in a specific slice. - loginctl gained commands to list, introspect and terminate machines. - user.slice and machine.slice will now be pulled in by logind.service, since only logind.service requires this slice.
2013-06-17core: add new .slice unit type for partitioning systemsLennart Poettering
In order to prepare for the kernel cgroup rework, let's introduce a new unit type to systemd, the "slice". Slices can be arranged in a tree and are useful to partition resources freely and hierarchally by the user. Each service unit can now be assigned to one of these slices, and later on login users and machines may too. Slices translate pretty directly to the cgroup hierarchy, and the various objects can be assigned to any of the slices in the tree.
2013-06-10journalctl: allow the user to specify the file(s) to useZbigniew Jędrzejewski-Szmek
This is useful for debugging and feels pretty natural. For example answering the question "is this big .journal file worth keeping?" is made easier.
2013-06-10Properly check for overflow in offsetsZbigniew Jędrzejewski-Szmek
2013-06-10journal: loop less in MATCH_AND_TERM conditionalsZbigniew Jędrzejewski-Szmek
AND term usually don't have many subterms (4 seems to be the maximum sensible number, e.g. _BOOT_ID && _SYSTEMD_UNIT && _PID && MESSAGE_ID). Nevertheless, the cost of checking each subterm can be relatively high, especially when the nested terms are compound, and it makes sense to minimize the number of checks. Instead of looping to the end and then again over the whole list once again after at least one term changed the offset, start the loop at the term which caused the change. This way ½ terms in the AND match are not checked unnecessarily again.
2013-06-10journal: add ability to filter by current userZbigniew Jędrzejewski-Szmek
This is the just the library part. SD_JOURNAL_CURRENT_USER flags is added to sd_j_open(), to open files from current user. SD_JOURNAL_SYSTEM_ONLY is renamed to SD_JOURNAL_SYSTEM, and changed to mean to (also) open system files. This way various flags can be combined, which gives them nicer semantics, especially if other ones are added later. Backwards compatibility is kept, because SD_JOURNAL_SYSTEM_ONLY is equivalent to SD_JOURNAL_SYSTEM if used alone, and before there we no other flags.
2013-06-10dev-setup: do not create a dangling /proc/kcore symlinkZbigniew Jędrzejewski-Szmek
https://bugs.freedesktop.org/show_bug.cgi?id=65382 https://bugs.gentoo.org/472060?id=472060
2013-06-09journalctl: fix verbose output when no logs are foundZbigniew Jędrzejewski-Szmek
$ journalctl -o verbose _EXE=/quiet/binary -f -- Logs begin at Sun 2013-03-17 17:28:22 EDT. -- Failed to get realtime timestamp: Cannot assign requested address JOURNAL_FOREACH_DATA_RETVAL is added, which allows the caller to get the return value from sd_journal_enumerate_data. I think we might want to expose this macro like SD_JOURNAL_FOREACH_DATA, but for now it is in journal-internal.h. There's a change in behaviour for output_*, not only in output_verbose, that errors in sd_j_enumerate_data are not silently ignored anymore. https://bugs.freedesktop.org/show_bug.cgi?id=56459
2013-06-09Allow for the use of @ in remote host callsDaniel Wallace
Without this you have to use %40 with the -H flag because dbus doesn't like the @ sign being unescaped.
2013-06-09logs-show: print multiline messagesZbigniew Jędrzejewski-Szmek
[ 0.019862] fedora kernel: CPU0: Thermal monitoring enabled (TM1) [ 0.019900] fedora kernel: Last level iTLB entries: 4KB 512, 2MB 0, 4MB 0 Last level dTLB entries: 4KB 512, 2MB 32, 4MB 32 tlb_flushall_shift: 5 [ 0.020118] fedora kernel: Freeing SMP alternatives: 24k freed
2013-06-06cgroup: the "tasks" attribute is obsolete, cgroup.procs is the new replacementLennart Poettering
2013-06-06manager: Do not handle SIGKILL since we can notChengwei Yang
This is a minor fix because it's not a major issue, this fix just avoid to get EINVAL error from sigaction(2). There are two signals can not handled at user space, SIGKILL and SIGSTOP even we're PID 1, trying to handle these two signals will get EINVAL error. There are two kinds of systemd instance, running as system manager or user session manager, apparently, the latter is a general user space process which can not handle SIGKILL. The special pid 1 also can not do that refer to kernel/signal.c:do_sigaction(). However, pid 1 is unkillable because the kernel did attach SIGNAL_UNKILLABLE to it at system boot up, refer to init/main.c:start_kernel() --> rest_init() --> kernel_thread() --> kernel_init() --> init_post() current->signal->flags |= SIGNAL_UNKILLABLE
2013-06-04systemctl: limit logs in status to current bootZbigniew Jędrzejewski-Szmek
Also reworded a few debug messages for brevity, and added a log statement which prints out the filter at debug level: Journal filter: (((UNIT=sys-module-configfs.device AND _PID=1) OR (COREDUMP_UNIT=sys-module-configfs.device AND MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1) OR _SYSTEMD_UNIT=sys-module-configfs.device) AND _BOOT_ID=4e3c518ab0474c12ac8de7896fe6b154)
2013-06-03systemctl,core: allow nuking of symlinks to removed unitsZbigniew Jędrzejewski-Szmek
Before, one the unit file was deleted, install_context_for_removal() would refuse to look for symlinks. But we can remove dangling symlinks anyway. In principle, package installation/deinstallation scripts should do that before the unit is uninstalled, but they don't always do. Also, a user might have added additional symlinks manually. https://bugs.freedesktop.org/show_bug.cgi?id=62395
2013-05-30systemctl: suggest 'systemctl daemon-reload' without --systemZbigniew Jędrzejewski-Szmek
--system is default anyway, and some poor user might type 9 characters without needing to.
2013-05-30systemctl: add commands set-default and get-defaultVáclav Pavlín
systemctl set-default NAME links the default.target to the given unit, get-default prints out the path to the currently set default target.
2013-05-30journald: DO recalculate the ACL mask, but only if it doesn't existJan Alexander Steffens (heftig)
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.
2013-05-21systemctl: make systemctl is-enabled work for templated unitsMichael Tremer
Patch resolves the problem that 'systemctl is-enabled' does not work for templated units. Without this patch, systemctl is-enabled something@abc.service returned "No such file or directory", because it first checked if /usr/lib/systemd/system/something@abc.service, etc. exists. If systemctl is-enabled is called for templated units, this check should be omitted and it should search for symlinks in the .wants dirs right away. This patch fixes the broken behaviour and resolves https://bugs.freedesktop.org/show_bug.cgi?id=55318. [zj: fixed the patch to still check for broken symlinks and masked instances. Also removed untrue assumptions from the patch description.]
2013-05-17bus: add APIs for negotiating what is attached to messagesLennart Poettering
2013-05-16bus: make bus ref counting atomicLennart Poettering
This is preparation to allow sd_bus_message obejcts to be processed in a different thread from their originating sd_bus object.
2013-05-15Fix syscall(__NR_fanotify_mark, ...) on armChengwei Yang
2013-05-14bus: add and use UINT64_TO_PTR()Kay Sievers
2013-05-07hostname: only suppress setting of pretty hostname if it is non-equal to the ↵Lennart Poettering
static hostname and if the static hostname is set, too https://bugzilla.redhat.com/show_bug.cgi?id=957814
2013-05-07hashmap: document trivial_hash_func()Lennart Poettering
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.
2013-05-06fileio: split write_one_line_file into twoZbigniew Jędrzejewski-Szmek
The new function allows one to write to an already open file.
2013-05-03cgroup: when escaping a cgroup object name, also escape names that start ↵Lennart Poettering
with a dot
2013-05-02time-dst: use _cleanup_Zbigniew Jędrzejewski-Szmek
2013-05-02Add __attribute__((const, pure, format)) in various placesZbigniew Jędrzejewski-Szmek
I'm assuming that it's fine if a _const_ or _pure_ function calls assert. It is assumed that the assert won't trigger, and even if it does, it can only trigger on the first call with a given set of parameters, and we don't care if the compiler moves the order of calls.
2013-05-03hashmap.h: fix coding style issueDaniel Buch
2013-05-01Annotate some functions as _const_Cristian Rodríguez
hexchar,unhexchar,octchar,unoctchar,decchar,undecchar are all const functions.
2013-05-01cgls: add --machine/-MZbigniew Jędrzejewski-Szmek
cg_get_machine_path is modified to include the escaped machine name + ".nspawn" if the machine argument is nonnull.
2013-04-30util: Add _sentinel_ to strextend()Colin Walters
Since it must be NULL terminated.
2013-04-30cgroup: make cg_pid_get_path() work properly for co-mounted controllers and ↵Lennart Poettering
normalized named hierarchies
2013-04-30cgroup: do not allow manipulating the cgroup path of units within the ↵Lennart Poettering
systemd:/system subtree
2013-04-30id128: when taking user input for a 128bit ID, validate syntaxLennart Poettering
Also, always accept both our simple hexdump syntax and UUID syntax.
2013-04-25Use attribute(unused) in PROTECT_ERRNOZbigniew Jędrzejewski-Szmek
clang emits warnings about unused attribute _saved_errno_, which drown out other—potentially useful—warnings. gcc documentation is not exactly verbose about the effects of __attribute__((unused)) on variables, but let's assume that it works if the unit test passes.
2013-04-25Add some extra __attribute__ ((format)) sCristian Rodríguez
2013-04-25Make up for attribute malloc with alloc_sizeZbigniew Jędrzejewski-Szmek
It is imperative that open source code be well attributed. Sprinkle attribute((alloc_size)) here and there, telling gcc how much memory we are actually allocating.
2013-04-25Remove erroneous attribute((malloc)) annotationsZbigniew Jędrzejewski-Szmek
According to gcc documentation, returned pointer "cannot alias any other pointer valid when the function returns" and "the memory has undefined content". This second part is (hopefully) untrue for all those functions.
2013-04-26always unconditionally create /dev/rtc and use it internallyKay Sievers
Partially revert 2b3c81b02fa5dd47b19558c7684e113f36a48486, which tried to avoid inconsistent rules about when and how to create the /dev/rtc symlink. Instead of conditionally or not creating the /dev/rtc link at all, now always create it with additional and more reliable udev rules. First try to find the "system rtc" with the hctosys flag, if this is not found, fall back to create the link for /dev/rtc0. Our code now never actively searches for the "system rtc" it can always use /dev/rtc.
2013-04-25util: rework safe_atod() to be locale-independentLennart Poettering
This adds some syntactic sugar with a macro RUN_WITH_LOCALE() that reset the thread-specific locale temporarily.
2013-04-25conf-parser: restrict .include usageLennart Poettering
Disallow recursive .include, and make it unavailable in anything but unit files.
2013-04-24cgroup: always validate cgroup controller namesLennart Poettering
Let's better be safe than sorry.
2013-04-24fileio: unify how we chop off whitespace from key and value in ↵Lennart Poettering
parse_env_file_internal()
2013-04-24do not create /dev/rtc symlink, let systemd search for it if neededKay Sievers
The export of the RTCs hctosys flag is uneccesary, the kernel takes care of the persistemt clock management itself, without any need for: CONFIG_RTC_HCTOSYS=y CONFIG_RTC_HCTOSYS_DEVICE="rtc0" "Chaotic hardware platforms" without native kernel persistent clock support will find the proper RTC with the logic rtc_open() without the need for a custom symlink.
2013-04-24Add set_consume which always takes ownershipZbigniew Jędrzejewski-Szmek
Freeing in error path is the common pattern with set_put().
2013-04-22cgroup: make sure all our cgroup objects have a suffix and are properly escapedLennart Poettering
Session objects will now get the .session suffix, user objects the .user suffix, nspawn containers the .nspawn suffix. This also changes the user cgroups to be named after the numeric UID rather than the username, since this allows us the parse these paths standalone without requiring access to the cgroup file system. This also changes the mapping of instanced units to cgroups. Instead of mapping foo@bar.service to the cgroup path /user/foo@.service/bar we will now map it to /user/foo@.service/foo@bar.service, in order to ensure that all our objects are properly suffixed in the tree.
2013-04-22nspawn: suffix the nspawn cgroups with ".nspawn"Lennart Poettering
As discussed with Dan Berrange it's a good idea to suffix all objects in the cgroup tree with ".something", so that when the system is partitioned using a resource management tool we can drop objects of different types into the same partition directory without generate namespace conflicts. We'l add this to the Pax Control Group document as soon as write access to the fdo wiki is restored.
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