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Commit Graph

20 Commits

Author SHA1 Message Date
Tom Gundersen
af6f0d422c udev: add network link configuration tool
This tool applies hardware specific settings to network devices before they
are announced via libudev.

Settings that will probably eventually be supported are MTU, Speed,
DuplexMode, WakeOnLan, MACAddress, MACAddressPolicy (e.g., 'hardware',
'synthetic' or 'random'), Name and NamePolicy (replacing our current
interface naming logic). This patch only introduces support for
Description, as a proof of concept.

Some of these settings may later be overriden by a network management
daemon/script. However, these tools should always listen and wait on libudev
before touching a device (listening on netlink is not enough). This is no
different from how things used to be, as we always supported changing the
network interface name from udev rules, which does not work if someone
has already started using it.

The tool is configured by .link files in /etc/net/links/ (with the usual
overriding logic in /run and /lib). The first (in lexicographical order)
matching .link file is applied to a given device, and all others are ignored.

The .link files contain a [Match] section with (currently) the keys
MACAddress, Driver, Type (see DEVTYPE in udevadm info) and Path (this
matches on the stable device path as exposed as ID_PATH, and not the
unstable DEVPATH). A .link file matches a given device if all of the
specified keys do. Currently the keys are treated as plain strings,
but some limited globbing may later be added to the keys where it
makes sense.

Example:

/etc/net/links/50-wireless.link
[Match]
MACAddress=98:f2:e4:42:c6:92
Path=pci-0000:02:00.0-bcma-0
Type=wlan

[Link]
Description=The wireless link
2013-10-26 22:09:20 +02:00
Kay Sievers
9d7d42bc40 udev: add builtin 'keyboard' to manage key mappings 2013-07-10 22:52:55 +02:00
Kay Sievers
d8d4bee76c build-sys: fix HAVE/ENABLE_FIRMWARE
https://bugs.freedesktop.org/show_bug.cgi?id=62864
2013-03-28 15:28:10 +01:00
Tom Gundersen
a3bd8447be udev: make firmware loading optional and disable by default
Distros that whish to support old kernels should set
  --with-firmware-dirs="/usr/lib/firmware/updates:/usr/lib/firmware"
to retain the old behaviour.
2013-03-18 15:19:51 +01:00
Thomas Hindoe Paaboel Andersen
090be86534 use streq instead of strcmp 2013-02-13 18:14:20 +01:00
Kay Sievers
d5a89d7dc1 udev: move string copy functions to shared/ 2013-01-09 19:06:46 +01:00
Tom Gundersen
e30431623a build-sys: make loadable module support optional
kmod is unecessary if loadable module support is disabled in the kernel,
so make the dependency optional.
2012-11-20 19:35:27 +01:00
Anders Olofsson
f553b3b107 udev: make blkid optional
I'm building systemd for an embedded system and we would prefer not having
to include the entire util-linux package just to get a libblkid whose
functionality we don't need.
2012-11-16 01:17:18 +01:00
Kay Sievers
a660c63c55 udev: net_id - add builtin to retrieve data for network devices 2012-11-09 13:05:19 +01:00
Kay Sievers
c3cfed0d6c udev: update file headers 2012-11-09 12:39:27 +01:00
Kay Sievers
4af113f997 udev: builtin - do not fail builtin initialization if one of them returns an error 2012-10-26 03:45:25 +02:00
Kay Sievers
e5f2783e73 udev: set optind = 0, not the usual 1, to reset getopt_long()s internal state 2012-10-25 21:31:38 +02:00
Kay Sievers
796b06c21b udev: add hardware database support 2012-10-23 16:43:32 +02:00
Kay Sievers
0bb91b5010 udev: add btrfs support
All "btrfs" file systems will be registered with the kernel when they
show up.

Incomplete multi-device volumes will set SYSTEMD_READY=0, to prevent
access until the volume is complete and fully registered.
2012-09-17 13:54:03 +02:00
Kay Sievers
7781e063e8 udev: re-initialize builtins in the daemon process, not in the worker 2012-08-08 16:27:11 +02:00
Kay Sievers
018ef268b1 silence a bunch of gcc warnings 2012-04-17 18:42:09 +02:00
Kay Sievers
8fef0ff25c udev: replace ARRAY_SIZE() with ELEMENTSOF() 2012-04-16 19:20:57 +02:00
Kay Sievers
83cd6b754b udev: convert 'uaccess' to a builtin 2012-04-09 19:25:41 +02:00
Kay Sievers
baa30fbc2c udev: switch to systemd logging functions 2012-04-08 16:06:20 +02:00
Kay Sievers
3e2147858f move imported udev into place 2012-04-04 05:05:07 +02:00