Ubuntu
udev package

udev fail to rename netif at startup

Bug #416782 reported by masterware
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
udev (Ubuntu)
Fix Released
Medium
Scott James Remnant (Canonical)

Bug Description

Binary package hint: udev

in file /udev-145/udev/udev-event.c line 495

 util_strscpy(ifr.ifr_newname, IFNAMSIZ, "_rename");

should be replace by :

 strncat(ifr.ifr_newname, "_rename", IFNAMSIZ);

because if you have multiple network interface (like me 10 ...) and you change the file /etc/udev/rules.d/70-persistent-net.rules the udev module will try to change the interface name to all the same name "_rename" instead of "ethx_rename"

I rebuild the udev-145 package with this change and it work fine now !

Revision history for this message
masterware (masterware) wrote :

this is related to karmic udev-145.1 package

Revision history for this message
Scott James Remnant (Canonical) (canonical-scott) wrote :

Thanks, it looks like this bug was introduced by Kay when adjusting the string util functions:

committer: Kay Sievers <email address hidden>
timestamp: Wed 2009-05-20 17:57:52 +0200
message:
  use more efficient string copying

                /* free our own name, another process may wait for us */
- util_strlcpy(ifr.ifr_newname, udev_device_get_sysname(dev), IFNAMSIZ);
- util_strlcat(ifr.ifr_newname, "_rename", IFNAMSIZ);
+ util_strscpy(ifr.ifr_newname, IFNAMSIZ, udev_device_get_sysname(dev));
+ util_strscpy(ifr.ifr_newname, IFNAMSIZ, "_rename");

Changed in udev (Ubuntu):
importance: Undecided → Medium
status: New → Triaged
assignee: nobody → Scott James Remnant (scott)
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package udev - 147~-3

---------------
udev (147~-3) karmic; urgency=low

  * Update to GIT HEAD (still pre 147 release):
    - includes fix from previous revision
    - rename interfaces to <iface>_rename if rename fails. LP: #416782.
    - drop most NAME keys since 2.6.31 supplies them.
    - especially those with just "%k". LP: #430654.
    - fixed SYMLINK option parsing. LP: #430654.

  * Remove 40-alsa.rules now it's not shipped upstream.

 -- Scott James Remnant <email address hidden> Mon, 21 Sep 2009 16:02:32 -0700

Changed in udev (Ubuntu):
status: Triaged → Fix Released
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