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 · 2007-07-18 08:23:36 +00:00 · a2553569ed
parent 2d1d4476c6
commit a2553569ed
1 changed files with 17 additions and 0 deletions
--- a/package/busybox/patches/243-udhcpc_changed_ifindex.patch
+++ b/package/busybox/patches/243-udhcpc_changed_ifindex.patch
@ -0,0 +1,17 @@
+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);