diff options
| author | Harald Hoyer <harald@redhat.com> | 2010-08-10 16:41:24 +0200 |
|---|---|---|
| committer | Harald Hoyer <harald@redhat.com> | 2010-08-10 16:46:48 +0200 |
| commit | 09c03103028011935044bbade29a602925898f27 (patch) | |
| tree | 0ca6abfe731ab2389fb6a5446aaf24342c09a976 /udev/udev-event.c | |
| parent | c11f89b61a7872f640a15292a21c43504ce664da (diff) | |
udev-event.c: rename interface to <src>-<dest>, if <dest> taken
e.g. if eth0 should be eth3 and eth3 is waiting to be renamed,
eth0 was renamed to eth0_rename. The kernel would take eth0 as the name
for a new interface and this new eth0 could also become eth0_rename, if
the target name is also taken. To prevent this name clash, the
interfaces are now renamed to <src>-<dest> and the rename is logged.
Diffstat (limited to 'udev/udev-event.c')
| -rw-r--r-- | udev/udev-event.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/udev/udev-event.c b/udev/udev-event.c index 7591d5e314..7785ad892c 100644 --- a/udev/udev-event.c +++ b/udev/udev-event.c @@ -465,6 +465,7 @@ static int rename_netif(struct udev_event *event) int sk; struct ifreq ifr; int err; + char *newdup; info(event->udev, "changing net interface name from '%s' to '%s'\n", udev_device_get_sysname(dev), event->name); @@ -492,13 +493,16 @@ static int rename_netif(struct udev_event *event) } /* free our own name, another process may wait for us */ - util_strscpyl(ifr.ifr_newname, IFNAMSIZ, udev_device_get_sysname(dev), "_rename", NULL); + newdup = strdup(ifr.ifr_newname); + util_strscpyl(ifr.ifr_newname, IFNAMSIZ, udev_device_get_sysname(dev), "-", newdup, NULL); + free(newdup); err = ioctl(sk, SIOCSIFNAME, &ifr); if (err != 0) { err(event->udev, "error changing netif name %s to %s: %m\n", ifr.ifr_name, ifr.ifr_newname); goto exit; } + rename_netif_kernel_log(ifr); /* wait 90 seconds for our target to become available */ util_strscpy(ifr.ifr_name, IFNAMSIZ, ifr.ifr_newname); |