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Commit Graph

16 Commits

Author SHA1 Message Date
David Zeuthen
e32d5237ea Increase UTIL_LINE_SIZE from 2048 to 16384
Recent udisks versions, for LVM2 integration, ships with probers that
produce very long lines such as

UDISKS_LVM2_PV_VG_PV_LIST=
  uuid=98lyZl-Ya7U-p26Z-Ia7b-xf8u-xZqP-jc4njb;size=2000397795328;allocated_size=2000397795328
  uuid=iFs0cM-sxCF-ceQK-hZl1-kbwo-ZTjq-gSewQR;size=2000397795328;allocated_size=2000397795328
  [...]

e.g. roughly 100 bytes per LVM2 physical volume for each LVM2
PV encountered.

Signed-off-by: David Zeuthen <davidz@redhat.com>
2010-03-02 17:11:10 -05:00
Scott James Remnant
a571c23e95 libudev: export udev_monitor_set_receive_buffer_size()
This function is useful for anything that's likely to be running
alongside udevd during cold-plugging, and is using libudev to
receive the events.

It makes little sense for it to be private, or to require other
software to relearn how to adjust the buffer size.

Signed-off-by: Scott James Remnant <scott@ubuntu.com>
2010-02-17 15:26:00 +00:00
Kay Sievers
f46d2e54a8 remove UDEV_RUN environment variable
It handles only RUN but not IMPORT and PROGRAM. There is no sane way
to suppress program execution. Most important programs run with IMPORT
these days. Also events can no longer suppressed with the libudev
netlink messages, so UDEV_RUN does nothing useful and is just
inconsistent.
2009-12-25 15:23:45 +01:00
Kay Sievers
1d67ec16c4 fix typo in log message priority handling 2009-12-25 14:47:59 +01:00
Kay Sievers
26347a4c55 use CLOEXEC flags instead of fcntl() 2009-10-30 12:39:04 +01:00
Kay Sievers
6c29f2b942 simplify "symlink name stack"
With well defined and kernel-supplied node names, we no longer need
to support a possible stack of conflicting symlinks and node names.
Only symlinks with identical names can be claimed by multiple devices.

This shrinks the former /dev/.udev/names/ significantly.

Also the /dev/{block,char}/MAJ:MIN" links are excluded from the name
stack - they are unique and can not conflict.
2009-09-09 18:49:07 +02:00
Jeremy Kerr
d412a68573 util_run_program: restore signal mask before executing event RUN commands
External programs triggered by events (via RUN=) will inherit udev's
signal mask, which is set to block all but SIGALRM. For most utilities,
this is OK, but if we start daemons from RUN=, we run into trouble
(especially as SIGCHLD is blocked).

This change saves the original sigmask when udev starts, and restores it
just before we exec() the external command.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
2009-09-07 12:13:50 +02:00
Kay Sievers
2ffc9cc191 change database file names
With very deeply nested devices, We can not use a single file
name to carry an entire DEVPATH. Use <subsystem>:<sysname> as
the database filename, which should also simplify the handling
of devices moving around, as these values will not change but
still be unique.

For the name stack we use the <maj>:<min> now as the filename.

> On Tue, Aug 18, 2009 at 09:59:56AM -0400, Ric Wheeler wrote:
> The first is that udev grumbles during boot about "file name too long"
> like the following:
>
> Aug 17 06:49:58 megadeth udevd-event[20447]: unable to create db file
> '/dev/.udev/db/\x2fdevices\x2fpci0000:00\x2f0000:00:04.0\x2f0000:17:00.0\x2f0000:18:0a.0\x2f0000:1f:00.0\x2fhost11\x2fport-11:0\x2fexpander-11:0\x2fport-11:0:0\x2fexpander-11:1\x2fport-11:1:0\x2fexpander-11:2\x2fport-11:2:17\x2fexpander-11:3\x2fport-11:3:1\x2fend_device-11:3:1\x2fbsg\x2fend_device-11:3:1':
> File name too long
2009-08-19 20:49:49 +02:00
Kay Sievers
257bb4cdac use MIN() MAX() from param.h 2009-07-07 19:30:19 +02:00
Kay Sievers
045a3bc89e USE_LOG -> ENABLE_LOGGING, DEBUG -> ENABLE_DEBUG, USE_SELINUX -> WITH_SELINUX 2009-06-14 17:53:15 +02:00
Kay Sievers
98631e1c21 libudev: rename private files to *-private.c 2009-06-09 23:12:12 +02:00
Kay Sievers
44b49d3736 move common stuff from udev/ to private parts of libudev/ 2009-06-09 23:05:25 +02:00
Kay Sievers
9060b066d9 move syslog wrapper to libudev 2009-06-09 22:47:48 +02:00
Kay Sievers
119f66fc36 libudev: call log functions conditionally 2009-06-09 19:03:39 +02:00
Kay Sievers
a571016037 libudev: device_new() -> udev_device_new() 2009-06-09 13:11:23 +02:00
Kay Sievers
48a9b173e8 libudev: move to top-level directory 2009-06-08 21:36:06 +02:00