add fix for running udhcpc on bridges (patch by Eric L. Chen)
[openwrt/svn-archive/archive.git] / package / busybox / patches / 243-udhcpc_changed_ifindex.patch
1 Index: busybox-1.4.2/networking/udhcp/dhcpc.c
2 ===================================================================
3 --- busybox-1.4.2.orig/networking/udhcp/dhcpc.c 2007-07-18 10:07:20.161035443 +0200
4 +++ busybox-1.4.2/networking/udhcp/dhcpc.c 2007-07-18 10:09:15.515609124 +0200
5 @@ -273,6 +273,12 @@
6 tv.tv_sec = timeout - uptime();
7 tv.tv_usec = 0;
8
9 + /* When running on a bridge, the ifindex may have changed (e.g. if
10 + * member interfaces were added/removed or if the status of the
11 + * bridge changed).
12 + * Workaround: refresh it here before processing the next packet */
13 + read_interface(client_config.interface, &client_config.ifindex, NULL, client_config.arp);
14 +
15 if (listen_mode != LISTEN_NONE && fd < 0) {
16 if (listen_mode == LISTEN_KERNEL)
17 fd = listen_socket(INADDR_ANY, CLIENT_PORT, client_config.interface);