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2016-05-05tree-wide: introduce new SOCKADDR_UN_LEN() macro, and use it everywhereLennart Poettering
The macro determines the right length of a AF_UNIX "struct sockaddr_un" to pass to connect() or bind(). It automatically figures out if the socket refers to an abstract namespace socket, or a socket in the file system, and properly handles the full length of the path field. This macro is not only safer, but also simpler to use, than the usual offsetof() + strlen() logic.
2016-05-03udev: fix build with DEBUG=1Lubomir Rintel
Alternatively, this could perhaps be removed since it was broken for a long time and noone seemed to care. But it was helpful for me today.
2016-04-21tree-wide: use mdash instead of a two minusesZbigniew Jędrzejewski-Szmek
2016-04-08udevadm: assert return valueZbigniew Jędrzejewski-Szmek
This mirrors what we do in now(). CID #1351755.
2016-04-08udevd: use (void) to silence coverityZbigniew Jędrzejewski-Szmek
CID #1351429.
2016-03-14include sys/sysmacros.h in more placesMike Frysinger
Since glibc is moving away from implicitly including sys/sysmacros.h all the time via sys/types.h, include the header directly in more places. This seems to cover most makedev/major/minor usage.
2016-03-01selinux: always try to load the full selinux dbZbigniew Jędrzejewski-Szmek
https://github.com/systemd/systemd/pull/2508#issuecomment-190901170 Maybe fixes https://bugzilla.redhat.com/show_bug.cgi?id=1308771.
2016-02-23tree-wide: minor formatting inconsistency cleanupsVito Caputo
2016-02-22Merge pull request #2701 from keszybz/udev-rulesLennart Poettering
udev-rules cleanup fix
2016-02-22udev-rules: fix querying of attributesZbigniew Jędrzejewski-Szmek
faccessat returns 0 on success. A cosmetic fix is also included: the slash was doubled unnecessarily.
2016-02-22Merge pull request #2685 from poettering/lldp-fixes2Tom Gundersen
lldp fixes, second iteration
2016-02-21udev-rules: use _cleanup_ for fcloseZbigniew Jędrzejewski-Szmek
2016-02-21udev-rules: make error messages about rules more uniformZbigniew Jędrzejewski-Szmek
Also downgrade non-fatal warnings to log_warning. Previously rule_add_key() would check the output array and log a cryptic error and return -1. Most of the time the return value was ignored. This does not seems right, because the buffer can overflow with enough rules. It would also check if we have enough space for the *next* rule, even if there might be not next rule, i.e. off-by-one. Replace this with a check that we have enough space for a next rule before we start parsing. Normally using macros to alter flow is not allowed, but in this case I think it is worth it, because it allows lots of boilerplate code to be removed and hides repeated boring parameters, making function logic much easier to follow.
2016-02-21udev-rules: rewrite function to avoid clobbering argumentsZbigniew Jędrzejewski-Szmek
If the attribute wasn't found, the last filename looked at was returned in the input/output argument. This just seems bad style. The return value was ignored, so change function to return void.
2016-02-21udev-rules: modernize syntax a bitZbigniew Jędrzejewski-Szmek
2016-02-21udev-rules: log_oom() on memory error and abort processing of eventZbigniew Jędrzejewski-Szmek
CID #1313566. Also, change the return value to void, because it is ignored anyway.
2016-02-20tree-wide: place #pragma once at the same place everywhereLennart Poettering
Usually, we place the #pragma once before the copyright blurb in header files, but in a few cases we didn't. Move those around, so that we do the same thing everywhere.
2016-02-19udev/path_id: correct segmentation fault due to missing NULL checkHendrik Brueckner
Running "udevadm test-builtin path_id /sys/devices/platform/" results in a segmentation fault. The problem is that udev_device_get_subsystem(dev) might return NULL in a streq() call. Solve this problem by using streq_ptr() instead.
2016-02-18Remove/add (un)needed includesNathan McSween
2016-02-16udev: fix cg_unified() return code checkingLennart Poettering
Fixes fall-out from 8b3aa503c171acdb9ec63484a8c50e2680d31e79. Fixes: #2635
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.
2016-02-09path_id: reintroduce by-path links for virtio block devicesMichal Sekletar
Enumeration of virtio buses is global and hence non-deterministic. However, we are guaranteed there is never going to be more than one virtio bus per parent PCI device. While populating ID_PATH we simply skip virtio part of the syspath and we extend the path using the sysname of the parent PCI device. With this patch udev creates following by-path links for virtio-blk device /dev/vda which contains two partitions. ls -l /dev/disk/by-path/ total 0 lrwxrwxrwx 1 root root 9 Feb 9 10:47 virtio-pci-0000:00:05.0 -> ../../vda lrwxrwxrwx 1 root root 10 Feb 9 10:47 virtio-pci-0000:00:05.0-part1 -> ../../vda1 lrwxrwxrwx 1 root root 10 Feb 9 10:47 virtio-pci-0000:00:05.0-part2 -> ../../vda2 See: http://lists.linuxfoundation.org/pipermail/virtualization/2015-August/030328.html Fixes #2501
2016-01-29udev: net_id - for ccw bus, shorten the identifier and stip leading zerosDimitri John Ledkov
The commmon case default qeth link is enccw0.0.0600 is rather long. Thus strip leading zeros (which doesn't make the bus_id unstable), similar to the PCI domain case. Also 'ccw' is redundant on S/390, as there aren't really other buses available which could have qeth driver interfaces. Not sure why this code is even compiled on non-s390[x] platforms. But to distinguish from e.g. MAC stable names shorten the suffix to just 'c'. Thus enccw0.0.0600 becomes enc600.
2016-01-25udev: filter out non-sensically high onboard indexes reported by the kernelLennart Poettering
Let's not accept onboard interface indexes, that are so high that they are obviously non-sensical. Fixes: #2407
2016-01-23udevd: do not clean up fds in mainZbigniew Jędrzejewski-Szmek
fds will also be closed during manager cleanup in run, leading to an error when we try to close them again. It is now possible to "leak" the fds on error, but it's an unlikely event and we will exit immediately anyway. Fixes #2418.
2016-01-18udevd: initialize fds to -1 and close them before exitingZbigniew Jędrzejewski-Szmek
Little change in practice, because the program will exit soon afterwards, but the standard style of closing all fds is now followed. Also gets rid of gcc warning about fd_ctrl and fd_uevent being unitialized.
2016-01-13tree-wide: check if errno is greater then zeroZbigniew Jędrzejewski-Szmek
gcc is confused by the common idiom of return errno ? -errno : -ESOMETHING and thinks a positive value may be returned. Replace this condition with errno > 0 to help gcc and avoid many spurious warnings. I filed a gcc rfe a long time ago, but it hard to say if it will ever be implemented [1]. Both conventions were used in the codebase, this change makes things more consistent. This is a follow up to bcb161b0230f. [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61846
2016-01-12tree-wide: use xsprintf() where applicableDaniel Mack
Also add a coccinelle receipt to help with such transitions.
2016-01-01udev: Fix touch screen detectionAndreas Pokorny
Use BTN_TOUCH or INPUT_PROP_DIRECT to detect touch screens. Signed-off-by: Andreas Pokorny <andreas.pokorny@canonical.com>
2015-12-09Merge pull request #2110 from keszybz/udev-indentationDaniel Mack
Udev indentation
2015-12-07udev/scsi_id: fix some strange indentationZbigniew Jędrzejewski-Szmek
2015-12-07udev: add emacs header lineZbigniew Jędrzejewski-Szmek
Otherwise emacs wants to use 2-space indentation and other attrocities.
2015-12-07udev: fix NULL deref when executing rulesZbigniew Jędrzejewski-Szmek
We quite obviously check whether event->dev_db is nonnull, and right after that call a function which asserts the same. Move the call under the same if. https://bugzilla.redhat.com/show_bug.cgi?id=1283971
2015-11-27tree-wide: expose "p"-suffix unref calls in public APIs to make gcc cleanup easyLennart Poettering
GLIB has recently started to officially support the gcc cleanup attribute in its public API, hence let's do the same for our APIs. With this patch we'll define an xyz_unrefp() call for each public xyz_unref() call, to make it easy to use inside a __attribute__((cleanup())) expression. Then, all code is ported over to make use of this. The new calls are also documented in the man pages, with examples how to use them (well, I only added docs where the _unref() call itself already had docs, and the examples, only cover sd_bus_unrefp() and sd_event_unrefp()). This also renames sd_lldp_free() to sd_lldp_unref(), since that's how we tend to call our destructors these days. Note that this defines no public macro that wraps gcc's attribute and makes it easier to use. While I think it's our duty in the library to make our stuff easy to use, I figure it's not our duty to make gcc's own features easy to use on its own. Most likely, client code which wants to make use of this should define its own: #define _cleanup_(function) __attribute__((cleanup(function))) Or similar, to make the gcc feature easier to use. Making this logic public has the benefit that we can remove three header files whose only purpose was to define these functions internally. See #2008.
2015-11-17Merge pull request #1926 from phomes/include-order-libudevDaniel Mack
tree-wide: group include of libudev.h with sd-*
2015-11-17tree-wide: group include of libudev.h with sd-*Thomas Hindoe Paaboel Andersen
2015-11-17tree-wide: use right cast macros for UIDs, GIDs and PIDsLennart Poettering
2015-11-16tree-wide: sort includesThomas Hindoe Paaboel Andersen
Sort the includes accoding to the new coding style.
2015-11-16siphash24: change result argument to uint64_tMartin Pitt
Change the "out" parameter from uint8_t[8] to uint64_t. On architectures which enforce pointer alignment this fixes crashes when we previously cast an unaligned array to uint64_t*, and on others this should at least improve performance as the compiler now aligns these properly. This also simplifies the code in most cases by getting rid of typecasts. The only place which we can't change is struct duid's en.id, as that is _packed_ and public API, so we can't enforce alignment of the "id" field and have to use memcpy instead.
2015-11-13udev/path_id: improve and enhance bus detection for Linux on z SystemsLiu Yuan Yuan
Improve and enhance the path_id udev builtin to correctly handle bus' available on Linux on z Systems (s390). Previously, the CCW bus and, in particular, any FCP devices on it, have been treated separately. This commit integrates the CCW bus into the device chain loop. FCP devices and their associated SCSI disks are now handled through the common SCSI handling functions in path_id. This implies also a change in the naming of the symbolic links created by udev. So any backports of this commit to existing Linux distribution must be done with care. If a backport is required, a udev rule must be created to also create the "old-style" symbolic links. Apart from the CCW bus, this commit adds bus support for the: - ccwgroup bus which manages network devices, and - ap bus which manages cryptographic adapters - iucv bus which manages IUCV devices on z/VM
2015-11-09Merge pull request #1820 from michich/errno-v2Daniel Mack
[v2] treewide: treatment of errno and other cleanups
2015-11-09treewide: apply errno.cocciMichal Schmidt
with small manual cleanups for style.
2015-11-06doc: correct orthography, word forms and missing/extraneous wordsJan Engelhardt
2015-11-05treewide: use the negative error codes returned by our functionsMichal Schmidt
Our functions return negative error codes. Do not rely on errno being set after calling our own functions.
2015-10-27util-lib: split out allocation calls into alloc-util.[ch]Lennart Poettering
2015-10-27util-lib: split out globbing related calls into glob-util.[ch]Lennart Poettering
2015-10-27util-lib: split out printf() helpers to stdio-util.hLennart Poettering
2015-10-27socket-util: move CMSG_FOREACH() from macro.h to socket-util.hLennart Poettering
2015-10-27user-util: move UID/GID related macros from macro.h to user-util.hLennart Poettering
2015-10-27util-lib: move /proc/cmdline parsing code to proc-cmdline.[ch]Lennart Poettering