Daniel Mack [Mon, 1 Jun 2015 15:49:04 +0000 (17:49 +0200)]
load-fragment: use UNESCAPE_RELAX flag to parse exec directives
The cunescape() helper function used to handle unknown escaping sequences
gracefully by copying them over verbatim.
Commit 527b7a42 ("util: rework cunescape(), improve error handling") added
a flag to make that behavior optional, and changed to default to error out
with -EINVAL otherwise.
However, config_parse_exec(), which is used to parse the
Exec{Start,Stop}{Post,Pre,} directives of unit files, was not changed along
with that commit, which means that directives with improperly escaped
command line strings are no longer parsed.
Martin Pitt [Mon, 1 Jun 2015 09:32:39 +0000 (11:32 +0200)]
sd-device: fix invalid property strv pointers
In device_update_properties_bufs(), the strv is built from pointers into the
single nul-terminated buf_nulstr string, to avoid allocating the key=value
strings twice. However, we must not do that while building and
GREEDY_REALLOC0()'ing buf_nulstr, as each time when this actually reallocates
memory the pointers we wrote into buf_strv so far become invalid.
So change the logic to first completely build the new buf_nulstr, and then
iterate over it to pick out the pointers to the individual key=value strings
for properties_strv.
Tom Gundersen [Sun, 31 May 2015 21:58:39 +0000 (23:58 +0200)]
udevd: open sockets before forking
The communication channels must all be opened before forknig in daemon mode,
or we cannot guarantee that udevadm will work correctly as soon as udevd is
started.
Daniel Mack [Fri, 29 May 2015 22:59:22 +0000 (00:59 +0200)]
Revert "Makefile: make custom-entities.ent depend on Makefile.am"
This reverts commit 6096d9cc. As discussed on the mailing list, we
should accept some formal incorrectness in the dependency here, and
not rebuild the man pages every time Makefile.am changes - xsltproc
is simply too expensive.
Instead, let's move man/custom-entities.ent from DISTCLEANFILES to
CLEANFILES, so a 'make clean' is sufficient to actually make changes
in Makefile.am efficient for the contents of the man pages.
Tom Gundersen [Fri, 29 May 2015 16:31:01 +0000 (18:31 +0200)]
udevd: modernize status notification
Only log about starting in daemon mode, rely on PID1 to log this in notify mode. Also
explicitly set the STATUS variable, as is done in notify mode as is done for other
serivecs.
Tom Gundersen [Fri, 15 May 2015 09:35:15 +0000 (11:35 +0200)]
udevd: event - port spawn_wait() to sd-event
This allows us to drop the special sigterm handling in spawn_wait()
as this will now be passed directly to the worker event loop.
We now log failing spawend processes at 'warning' level, and timeouts
are in terms of CLOCK_BOOTTIME when available, otherwise the behavior
is unchanged.
Tom Gundersen [Mon, 18 May 2015 15:06:00 +0000 (17:06 +0200)]
udevd: explicitly try to start event queue when it may be possible
Rather than trying to schedule new events on every main-loop iteration, do it explicitly when
processing an event finishes, a worker is killed, a new uevent is received, or the event queue
is explicitly restarted.
Tom Gundersen [Wed, 13 May 2015 09:26:32 +0000 (11:26 +0200)]
udevd: introduce manager_exit() and manager_reload()
The behavior is mostly unchanged, but rather than only ever calling these functions at
fixed points in the event loop, they are called directly whenever they are invoked.
Martin Pitt [Wed, 27 May 2015 07:56:03 +0000 (09:56 +0200)]
path-util: Fix path_is_mount_point for files
Commits 27cc6f166 and f25afeb broke path_is_mount_point() for files (such as
/etc/machine-id → /run/machine-id bind mounts) as with the factorization of
fd_is_mount_point() we lost the parent directory. We cannot determine that from
an fd only as openat(fd, "..") only works for directory fds.
Change fd_is_mount_point() to behave like openat(): It now takes a file
descriptor of the containing directory, a file name in it, and flags (which can
be 0 or AT_SYMLINK_FOLLOW). Unlike name_to_handle_at() or openat(), fstatat()
only accepts the inverse flag AT_SYMLINK_NOFOLLOW and complains with EINVAL
about AT_SYMLINK_FOLLOW; so we need to transform the flags for that fallback.
Adjust rm_rf_children() accordingly (only other caller of fd_is_mount_point()
aside from path_is_mount_point()).
Add test cases for files, links, and file bind mounts (the latter will only
work when running as root). Split out a new test_path_is_mount_point() test
case function as it got significantly larger now.
Karel Zak [Fri, 29 May 2015 11:42:35 +0000 (13:42 +0200)]
build-sys: fix typo
There is nothing like systemd_verify_* in Makefile.am. The bug has
been invisible because automake uses the default CFLAGS when component
CFLAGS are undefined.
Martin Pitt [Thu, 28 May 2015 10:03:17 +0000 (12:03 +0200)]
build-sys: Stop depending on current configure options for EXTRA_DIST
Consistently move EXTRA_DIST out of conditional blocks. This would have
produced incomplete dist tarballs when being run in a built tree with not
every feature enabled, which can cause broken dist tarballs.
Daniel Mack [Fri, 29 May 2015 10:00:58 +0000 (12:00 +0200)]
Makefile: make custom-entities.ent depend on Makefile.am
When Makefile.am is modified, make sure custom-entities.ent is rebuilt.
After all, $(substitutions) is defined there, so changes of that variable
must be reflected in the resulting file.
Martin Pitt [Wed, 27 May 2015 12:52:17 +0000 (14:52 +0200)]
systemctl: Don't skip SysV init.d scripts when enabling/disabling units
If there is both a SysV init.d script and a systemd unit for a given name, we
want to do the same enable/disable operation for both, instead of just on the
systemd unit. This keeps the enablement status in sync so that switching init
systems behaves as expected.
Martin Pitt [Wed, 27 May 2015 15:04:49 +0000 (17:04 +0200)]
systemctl: drop hardcoded chkconfig invocation
Introduce /usr/lib/systemd/systemd-sysv-install [--root=] <action> <name>
abstraction, replacing the direct calling of chkconfig. This allows
distributions to call their specific tools like update-rc.d without patching
systemd.
Ship systemd-sysv-install.SKELETON as an example for packagers how to implement
this.
man: use configured path for mount and umount binaries in manpages
Export the MOUNT_PATH and UMOUNT_PATH variables as XML entities and use them in
the systemctl.1 manpage instead of hardcoding the path in /usr/bin.
Tested:
- Ran ./configure ac_cv_path_MOUNT_PATH=/bin/mount (same for umount) and
rebuilt the manpages, confirmed that the correct path was in man/systemctl.1
- Rebuilt man/systemd.directives.xml and the man pages derived from it,
confirmed that the correct paths were there as well.
In particular, use /lib/systemd instead of /usr/lib/systemd in distributions
like Debian which still have not adopted a /usr merge setup.
Use XML entities from man/custom-entities.ent to replace configured paths while
doing XSLT processing of the original XML files. There was precedent of some
files (such as systemd.generator.xml) which were already using this approach.
This addresses most of the (manual) fixes from this patch:
http://anonscm.debian.org/cgit/pkg-systemd/systemd.git/tree/debian/patches/Fix-paths-in-man-pages.patch?h=experimental-220
The idea of using generic XML entities was presented here:
http://lists.freedesktop.org/archives/systemd-devel/2015-May/032240.html
This patch solves almost all the issues, with the exception of:
- Path to /bin/mount and /bin/umount.
- Generic statements about preference of /lib over /etc.
These will be handled separately by follow up patches.
Tested:
- With default configure settings, ran "make install" to two separate
directories and compared the output to confirm they matched exactly.
- Used a set of configure flags including $CONFFLAGS from Debian:
http://anonscm.debian.org/cgit/pkg-systemd/systemd.git/tree/debian/rules
Installed the tree and confirmed the paths use /lib/systemd instead of
/usr/lib/systemd and that no other unexpected differences exist.
- Confirmed that `make distcheck` still passes.
The inotify-fd _is_ used in the workers, so don't close it! Have a look at
udev-watch.c, which keeps track of the inotify-fd as a global variable
(ugh!).
Karel Zak [Mon, 25 May 2015 10:11:23 +0000 (12:11 +0200)]
swap: use swapon -o
This patch simplify swapon usage in systemd. The command swapon(8)
since util-linux v2.26 supports "-o <list>". The idea is exactly the
same like for mount(8). The -o specifies options in fstab-compatible
way. For systemd it means that it does not have to care about things
like "discard" or another swapon specific options.
swapon -o <options-from-fstab>
For backward compatibility the code cares about "Priority:" swap unit
field (for a case when Priority: is set, but pri= in the Options: is
missing).
Tom Gundersen [Sun, 24 May 2015 13:20:36 +0000 (15:20 +0200)]
udevd: event - fix event queue in daemenozied mode
We would enforce that events could only be added to the queue from the
main process, but that brake in daemonized mode. Relax the restriction
to only allow one process to add events to the queue.
udev/net_id: Only read the first 64 bytes of PCI config space
The original code used fread(), which on some libc implementions
(ie glibc 2.17) would pre-read a full 4K (PAGE_SIZE) of the
PCI config space, when only 64 bytes were requested.
I have recently come across PCIe hardware which responds with
Completion Timeouts when accesses above 256 bytes are attempted.
This can cause server systems with GHES/AEPI support to cause
and immediate kernel panic due to the failed PCI transaction.
This change replaces the buffered fread() with an explict
unbuffered read() of 64 bytes, which corrects this issue by
only reading the guaranteed first 64 bytes of PCIe config space.
With the v221 release these APIs should be public, stable APIs, hence
let's install their headers by default now, and add their symbols to the
.sym file.
David Herrmann [Thu, 21 May 2015 18:39:47 +0000 (20:39 +0200)]
NEWS: add note about gudev
gudev has been extracted into a separate repository managed by the gnome
project. See the announcement thread on systemd-devel for more:
http://lists.freedesktop.org/archives/systemd-devel/2015-May/032070.html
tmpfiles: create /etc/resolv.conf symlink only on boot
We will create the symlink on boot as a fallback to provide name
resolution. But if the symlink was removed afterwards, it most likely
should not be recreated. Creating it only on boot also solves the
issue where it would be created prematurely during installation,
before the system was actually booted.