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2017-01-14Merge pull request #4879 from poettering/systemdZbigniew Jędrzejewski-Szmek
2017-01-11socket-util: drop _pure_ from a function with an output parameterZbigniew Jędrzejewski-Szmek
If it writes to memory, it's not pure, by definition. Fixup for 882ac6e769c5c.
2017-01-11Merge pull request #5046 from stefanha/vsockLennart Poettering
Add AF_VSOCK socket activation support
2017-01-11sparse: avoid clash with __bitwise and __force from 4.10 linux/types.h (#5061)Lubomir Rintel
It also used __bitwise and __force. It seems easier to rename our versions since they are local to this one single header. Also, undefine them afteerwards, so that we don't pollute the preprocessor macro namespace.
2017-01-10socket-util: add AF_VSOCK address familyStefan Hajnoczi
The AF_VSOCK address family facilitates guest<->host communication on VMware and KVM (virtio-vsock). Adding support to systemd allows guest agents to be launched through .socket unit files. Today guest agents are stand-alone daemons running inside guests that do not take advantage of systemd socket activation.
2017-01-10socket-util: introduce port argument in sockaddr_port()Stefan Hajnoczi
sockaddr_port() either returns a >= 0 port number or a negative errno. This works for AF_INET and AF_INET6 because port ranges are only 16-bit. In AF_VSOCK ports are 32-bit so an int cannot represent all port number and negative errnos. Separate the port and the return code.
2017-01-10missing.h: add AF_VSOCK bitsStefan Hajnoczi
Ubuntu 14.04 (Trusty) kernel header packages ship without <linux/vm_sockets.h>. Only struct sockaddr_vm and VMADDR_CID_ANY will be needed by systemd and they are simple enough to go in missing.h. CentOS 7 <sys/socket.h> does not define AF_VSOCK. Define it so the code can compile although actual socket(2) calls may fail at runtime if the address family isn't available.
2017-01-10build-sys: add check for gperf lookup function signature (#5055)Mike Gilbert
gperf-3.1 generates lookup functions that take a size_t length parameter instead of unsigned int. Test for this at configure time. Fixes: https://github.com/systemd/systemd/issues/5039
2016-12-29Merge pull request #4994 from poettering/private-tmp-tmpfilesMartin Pitt
automatically clean up PrivateTmp= left-overs in /var/tmp on next boot
2016-12-27core: implicitly order units with PrivateTmp= after ↵Lennart Poettering
systemd-tmpfiles-setup.service Preparation for fixing #4401.
2016-12-27util-lib: add a comment explaining the user name rules we enforceLennart Poettering
2016-12-21util-lib: rework path_check_fstype() and path_is_temporary_fs() to use O_PATHLennart Poettering
Also, add tests to make sure this actually works as intended.
2016-12-21util-lib: be stricter when decoding hex stringsLennart Poettering
If a hex string has an uneven length, generate an error instead of silently assuming a trailing '0' was in place.
2016-12-21util-lib: various improvements to kernel command line parsingLennart Poettering
This improves kernel command line parsing in a number of ways: a) An kernel option "foo_bar=xyz" is now considered equivalent to "foo-bar-xyz", i.e. when comparing kernel command line option names "-" and "_" are now considered equivalent (this only applies to the option names though, not the option values!). Most of our kernel options used "-" as word separator in kernel command line options so far, but some used "_". With this change, which was a source of confusion for users (well, at least of one user: myself, I just couldn't remember that it's systemd.debug-shell, not systemd.debug_shell). Considering both as equivalent is inspired how modern kernel module loading normalizes all kernel module names to use underscores now too. b) All options previously using a dash for separating words in kernel command line options now use an underscore instead, in all documentation and in code. Since a) has been implemented this should not create any compatibility problems, but normalizes our documentation and our code. c) All kernel command line options which take booleans (or are boolean-like) have been reworked so that "foobar" (without argument) is now equivalent to "foobar=1" (but not "foobar=0"), thus normalizing the handling of our boolean arguments. Specifically this means systemd.debug-shell and systemd_debug_shell=1 are now entirely equivalent. d) All kernel command line options which take an argument, and where no argument is specified will now result in a log message. e.g. passing just "systemd.unit" will no result in a complain that it needs an argument. This is implemented in the proc_cmdline_missing_value() function. e) There's now a call proc_cmdline_get_bool() similar to proc_cmdline_get_key() that parses booleans (following the logic explained in c). f) The proc_cmdline_parse() call's boolean argument has been replaced by a new flags argument that takes a common set of bits with proc_cmdline_get_key(). g) All kernel command line APIs now begin with the same "proc_cmdline_" prefix. h) There are now tests for much of this. Yay!
2016-12-21util-lib: read $SYSTEMD_PROC_CMDLINE if set when looking for the kernel cmdlineLennart Poettering
if we want to parse the kernel command line, let's check the $SYSTEMD_PROC_CMDLINE environment variable first. This is useful for debugging purposes.
2016-12-20calendarspec: minor refactoring and style fixDouglas Christman
2016-12-20calendarspec: improve overflow handlingDouglas Christman
Check if the parsed seconds value fits in an integer *after* multiplying by USEC_PER_SEC, otherwise a large value can trigger modulo by zero during normalization.
2016-12-20util-lib: make verbose_mount() grok MS_MOVELennart Poettering
Let's print a proper message if we see MS_MOVE.
2016-12-20util-lib: add new path_is_temporary_fs() APILennart Poettering
As simple wrapper around fd_is_temporary_fs().
2016-12-20util-lib: make sure fd_check_fstype() opens files with O_CLOEXECLennart Poettering
Also, O_NOCTTY is a safer bet, let's add that too.
2016-12-20util-lib: beef path_is_os_tree() up a bitLennart Poettering
Let's use chase_symlinks() when looking for /etc/os-release and /usr/lib/os-release as these files might be symlinks (and actually are IRL on some distros).
2016-12-20util-lib: accept invoking chase_symlinks() with a NULL return parameterLennart Poettering
Let's permit invoking chase_symlinks() with a NULL return parameter. If so, the resolved name is not returned, and call is useful for checking for existance of a file, without actually returning its ultimate path.
2016-12-20Merge pull request #4904 from dobyrch/calendar-range-stepLennart Poettering
calendarspec: allow repetition values with ranges
2016-12-17basic/log: use IN_SETZbigniew Jędrzejewski-Szmek
2016-12-17Modify mount_propagation_flags_from_string to return a normal int codeZbigniew Jędrzejewski-Szmek
This means that callers can distiguish an error from flags==0, and don't have to special-case the empty string.
2016-12-17Merge pull request #4845 from poettering/various-smaller-fixesZbigniew Jędrzejewski-Szmek
Various smaller fixes
2016-12-16calendarspec: remove superfluous variablesDouglas Christman
2016-12-16calendarspec: rename fields of CalendarComponentDouglas Christman
value/range_end -> start/stop
2016-12-16calendarspec: allow repetition values with rangesDouglas Christman
"Every other hour from 9 until 5" can be written as `9..17/2:00` instead of `9,11,13,15,17:00`
2016-12-14calendarspec: free memory when parsing fails (#4890)Doug Christman
This prevents memory leaks on strings like `*~*-*`. Fixes #4887
2016-12-14util-lib: rework rename_process() to be able to make use of PR_SET_MM_ARG_STARTLennart Poettering
PR_SET_MM_ARG_START allows us to relatively cleanly implement process renaming. However, it's only available with privileges. Hence, let's try to make use of it, and if we can't fall back to the traditional way of overriding argv[0]. This removes size restrictions on the process name shown in argv[] at least for privileged processes.
2016-12-14util-lib: improve container detection logicLennart Poettering
Previously, systemd-detect-virt was unable to detect "systemd-nspawn -a" container environments, i.e. where PID 1 is a stub process running in host context, as in that case /proc/1/environ was inherited from the host. Let's improve that, and add an additional check for container environments where /proc/1/environ is not cleaned up and does not contain the $container environment variable: The /proc/1/sched file shows the host PID in the first line. if this is not 1, we know we are running in a PID namespace (but not which implementation). With these changes we should be able to detect container environments that don't set $container at all.
2016-12-14core: rework logic to determine when we decide to add automatic deps for mountsLennart Poettering
This adds a concept of "extrinsic" mounts. If mounts are extrinsic we consider them managed by something else and do not add automatic ordering against umount.target, local-fs.target, remote-fs.target. Extrinsic mounts are considered: - All mounts if we are running in --user mode - API mounts such as everything below /proc, /sys, /dev, which exist from earliest boot to latest shutdown. - All mounts marked as initrd mounts, if we run on the host - The initrd's private directory /run/initrams that should survive until last reboot. This primarily merges a couple of different exclusion lists into a single concept.
2016-12-14util: Fine tune running_in_chroot() a bitLennart Poettering
Let's be a bit more careful when detecting chroot() environments, so that we can discern them from namespaced environments. Previously this would simply check if the root directory of PID 1 matches our own root directory. With this commit, we also check whether the namespaces of PID 1 and ourselves are the same. If not we assume we are running inside of a namespaced environment instead of a chroot() environment. This has the benefit that systemctl (which uses running_in_chroot()) will work as usual when invoked in a namespaced service.
2016-12-13Merge pull request #4806 from poettering/keyring-initZbigniew Jędrzejewski-Szmek
set up a per-service session kernel keyring, and store the invocation ID in it
2016-12-13core: hook up MountFlags= to the transient unit logicLennart Poettering
This makes "systemd-run -p MountFlags=shared -t /bin/sh" work, by making MountFlags= to the list of properties that may be accessed transiently.
2016-12-13core: run each system service with a fresh session keyringLennart Poettering
This patch ensures that each system service gets its own session kernel keyring automatically, and implicitly. Without this a keyring is allocated for it on-demand, but is then linked with the user's kernel keyring, which is OK behaviour for logged in users, but not so much for system services. With this change each service gets a session keyring that is specific to the service and ceases to exist when the service is shut down. The session keyring is not linked up with the user keyring and keys hence only search within the session boundaries by default. (This is useful in a later commit to store per-service material in the keyring, for example the invocation ID) (With input from David Howells)
2016-12-13machine-id-setup: `--print --commit` respects the --root optionEvgeny Vereshchagin
2016-12-12Merge pull request #4771 from keszybz/udev-property-orderingMartin Pitt
Udev property ordering
2016-12-12Merge pull request #4867 from keszybz/catalog-messagesLennart Poettering
Catalog message improvements
2016-12-11basic/log: CODE_FUNCTION → CODE_FUNCZbigniew Jędrzejewski-Szmek
systemd.journal-fields(7) documents CODE_FUNC=. Internally, we were inconsistent: sd_journal_print uses CODE_FUNC=, log.h has CODE_FUNCTION=, python-systemd and bootchart also used CODE_FUNC=, when they were internal. Most external projects use sd_journal_* functions, so CODE_FUNC=, python-systemd still uses CODE_FUNC=, as does systemd-bootchart, and independent reimplementations in golang-github-coreos-go-systemd, qtbase, network manager, glib, pulseaudio. Hence, I don't think there's much choice.
2016-12-11share/log: change log_syntax from "[a:b] " to "a:b: "Zbigniew Jędrzejewski-Szmek
Those square brackets don't fit how our other messages look like; we use colons everywhere else. The "[a:b]" format was originally added in ed5bcfbe3c3b68e59242c03649eea03a9707d318, and remained unchanged for 7 years, but in the meantime other conventions evolved. The new version is also one character shorter. [/etc/systemd/system/systemd-networkd.service.d/override.conf:2] Failed to parse sec value, ignoring: ... ↓ /etc/systemd/system/systemd-networkd.service.d/override.conf:2: Failed to parse sec value, ignoring: ...
2016-12-11basic/log: merge two big log_struct_internal invocations into oneZbigniew Jędrzejewski-Szmek
We can take advantage of the fact a NULL argument terminates the list.
2016-12-11basic/extract-word,man: clarify "correction" of invalid escapesZbigniew Jędrzejewski-Szmek
Our warning message was misleading, because we wouldn't "correct" anything, we'd just ignore unkown escapes. Update the message. Also, print just the extracted word (which contains the offending sequences) in the message, instead of the whole line. Fixes #4697.
2016-12-10build-sys: define arm as secondary architecture for arm64Zbigniew Jędrzejewski-Szmek
Completely unstested. Fixes #4862.
2016-12-10Merge pull request #4795 from poettering/dissectZbigniew Jędrzejewski-Szmek
Generalize image dissection logic of nspawn, and make it useful for other tools.
2016-12-09tree-wide: replace all readdir cycles with FOREACH_DIRENT{,_ALL} (#4853)Reverend Homer
2016-12-08Merge pull request #4686 from poettering/machine-id-app-specificZbigniew Jędrzejewski-Szmek
Add new "khash" API and add new sd_id128_get_machine_app_specific() function
2016-12-07util-lib: drop unnecessary NULL checkLennart Poettering
DEFINE_TRIVIAL_CLEANUP_FUNC() already does that check, no need to duplicate it.
2016-12-07util-lib: add easy helpers for temporary directories that rmdir()ed via ↵Lennart Poettering
_cleanup_ This adds mkdtemp_malloc() that is a combination of mkdtemp() plus strdup(). It initializes its return paremeter only if the temporary directory could be created successfully, so that the parameter is exactly non-NULL when the directory exists. rmdir_and_free() and rmdir_and_freep() are also added, and the latter may be used inside of _cleanup_ for such a directory string variable, to automatically rmdir() the directory if it is non-NULL when the scope exits. rmdir_and_free() is similar to the existing rm_rf_and_free() however, is only removes a single directory and does not operate recursively.