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openwrt-xburst/package/busybox/patches/243-udhcpc_changed_ifindex.patch
nbd 61b304e36d add fix for running udhcpc on bridges (patch by Eric L. Chen)
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@8025 3c298f89-4303-0410-b956-a3cf2f4a3e73
2007-07-18 08:23:36 +00:00

18 lines
840 B
Diff

Index: busybox-1.4.2/networking/udhcp/dhcpc.c
===================================================================
--- busybox-1.4.2.orig/networking/udhcp/dhcpc.c 2007-07-18 10:07:20.161035443 +0200
+++ busybox-1.4.2/networking/udhcp/dhcpc.c 2007-07-18 10:09:15.515609124 +0200
@@ -273,6 +273,12 @@
tv.tv_sec = timeout - uptime();
tv.tv_usec = 0;
+ /* When running on a bridge, the ifindex may have changed (e.g. if
+ * member interfaces were added/removed or if the status of the
+ * bridge changed).
+ * Workaround: refresh it here before processing the next packet */
+ read_interface(client_config.interface, &client_config.ifindex, NULL, client_config.arp);
+
if (listen_mode != LISTEN_NONE && fd < 0) {
if (listen_mode == LISTEN_KERNEL)
fd = listen_socket(INADDR_ANY, CLIENT_PORT, client_config.interface);