commit: 841cd0ce3f6b97fbf77e12a6018a2c4a633eba89
Author: Andoni Zarate <aiz <AT> arteche <DOT> es>
AuthorDate: Fri Apr 23 10:32:47 2021 +0000
Commit: Anthony G. Basile <blueness <AT> gentoo <DOT> org>
CommitDate: Mon Aug 23 16:03:05 2021 +0000
URL: https://gitweb.gentoo.org/proj/eudev.git/commit/?id=841cd0ce
On collision rename my name to a temporal one letting others got my name...
Signed-off-by: Anthony G. Basile <blueness <AT> gentoo.org>
src/udev/udev-event.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/src/udev/udev-event.c b/src/udev/udev-event.c
index 4120c04f2..64cc69cbc 100644
--- a/src/udev/udev-event.c
+++ b/src/udev/udev-event.c
@@ -826,6 +826,7 @@ static int rename_netif_dev_fromname_toname(struct
udev_device *dev,const char *
#ifdef ENABLE_RULE_GENERATOR
int loop;
+ struct ifreq ifr_tmp;
if (r == 0) {
log_info("renamed network interface %s to %s\n", ifr.ifr_name,
ifr.ifr_newname);
@@ -835,6 +836,16 @@ static int rename_netif_dev_fromname_toname(struct
udev_device *dev,const char *
log_debug("collision on rename of network interface %s to %s , retrying
until timeout\n",
ifr.ifr_name, ifr.ifr_newname);
+ /* there has been a collision so rename my name to a temporal name,
letting other one to rename to my name, freeying its name... */
+ memzero(&ifr_tmp, sizeof(struct ifreq));
+ strscpy(ifr_tmp.ifr_name, IFNAMSIZ, oldname);
+ snprintf(ifr_tmp.ifr_newname, IFNAMSIZ, "rename_%s", oldname);
+ r = ioctl(sk, SIOCSIFNAME, &ifr_tmp);
+ log_info("Temporarily renamed network interface %s to %s\n",
ifr_tmp.ifr_name, ifr_tmp.ifr_newname);
+
+ /* we have changed our name so in subsequents tries i should rename my
temporal name to the wanted one */
+ strscpy(ifr.ifr_name, IFNAMSIZ, ifr_tmp.ifr_newname);
+
r = -errno;
if (r != -EEXIST)
goto out;
