[Quagga] Ignore wireless netlink messages

This patch fixes a bug where zebra terminates randomly with SIGABRT. The
problem originates from zebra trying to parse wireless netlink messages. The
following patch makes zebra ignore these messages.

Signed-off-by: Acinonyx <acinonyxs@yahoo.gr>
git-svn-id: svn://svn.openwrt.org/openwrt/packages@15676 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/net/quagga/patches/130-netlink_ignore_wireless.patch b/net/quagga/patches/130-netlink_ignore_wireless.patch
new file mode 100644 (file)
index 0000000..27a271e
--- /dev/null
+++ b/net/quagga/patches/130-netlink_ignore_wireless.patch
@@ -0,0 +1,40 @@
+diff --git a/zebra/rt_netlink.c b/zebra/rt_netlink.c
+index 61b2505..e766259 100644
+--- a/zebra/rt_netlink.c
++++ b/zebra/rt_netlink.c
+@@ -487,6 +487,17 @@ netlink_interface (struct sockaddr_nl *snl, struct nlmsghdr *h)
+   /* Looking up interface name. */
+   memset (tb, 0, sizeof tb);
+   netlink_parse_rtattr (tb, IFLA_MAX, IFLA_RTA (ifi), len);
++  
++#ifdef IFLA_WIRELESS
++  /* check for wireless messages to ignore */
++  if ((tb[IFLA_WIRELESS] != NULL) && (ifi->ifi_change == 0))
++    {
++      if (IS_ZEBRA_DEBUG_KERNEL)
++        zlog_debug ("%s: ignoring IFLA_WIRELESS message", __func__);
++      return 0;
++    }
++#endif /* IFLA_WIRELESS */
++
+   if (tb[IFLA_IFNAME] == NULL)
+     return -1;
+   name = (char *) RTA_DATA (tb[IFLA_IFNAME]);
+@@ -943,6 +954,17 @@ netlink_link_change (struct sockaddr_nl *snl, struct nlmsghdr *h)
+   /* Looking up interface name. */
+   memset (tb, 0, sizeof tb);
+   netlink_parse_rtattr (tb, IFLA_MAX, IFLA_RTA (ifi), len);
++
++#ifdef IFLA_WIRELESS
++  /* check for wireless messages to ignore */
++  if ((tb[IFLA_WIRELESS] != NULL) && (ifi->ifi_change == 0))
++    {
++      if (IS_ZEBRA_DEBUG_KERNEL)
++        zlog_debug ("%s: ignoring IFLA_WIRELESS message", __func__);
++      return 0;
++    }
++#endif /* IFLA_WIRELESS */
++  
+   if (tb[IFLA_IFNAME] == NULL)
+     return -1;
+   name = (char *) RTA_DATA (tb[IFLA_IFNAME]);