From: Felix Fietkau <nbd@nbd.name>
Date: Mon, 20 Oct 2025 21:35:20 +0000 (+0000)
Subject: system-linux: only parse device status for AF_UNSPEC link messages
X-Git-Url: http://git.openwrt.org/?a=commitdiff_plain;h=777f5942fa7d6245f6ad29daa1daecc400344d37;p=project%2Fnetifd.git

system-linux: only parse device status for AF_UNSPEC link messages

In bridge messages (family = AF_BRIDGE), the commands are the same, but the
contents are different, and this can confuse netifd into thinking that devices
are down, while they are actually up.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---

diff --git a/system-linux.c b/system-linux.c
index ceeabe3..0160b30 100644
--- a/system-linux.c
+++ b/system-linux.c
@@ -737,6 +737,9 @@ static int cb_rtnl_event(struct nl_msg *msg, void *arg)
 	if (nh->nlmsg_type != RTM_NEWLINK && nh->nlmsg_type != RTM_DELLINK)
 		return 0;
 
+	if (ifi->ifi_family != AF_UNSPEC)
+		return 0;
+
 	nlmsg_parse(nh, sizeof(struct ifinfomsg), nla, __IFLA_MAX - 1, NULL);
 	if (!nla[IFLA_IFNAME])
 		return 0;