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-rw-r--r--package/utils/busybox/patches/204-udhcpc_src_ip_rebind.patch53
1 files changed, 53 insertions, 0 deletions
diff --git a/package/utils/busybox/patches/204-udhcpc_src_ip_rebind.patch b/package/utils/busybox/patches/204-udhcpc_src_ip_rebind.patch
new file mode 100644
index 0000000000..6da568a914
--- /dev/null
+++ b/package/utils/busybox/patches/204-udhcpc_src_ip_rebind.patch
@@ -0,0 +1,53 @@
+Index: busybox-1.22.1/networking/udhcp/dhcpc.c
+===================================================================
+--- busybox-1.22.1.orig/networking/udhcp/dhcpc.c
++++ busybox-1.22.1/networking/udhcp/dhcpc.c
+@@ -659,10 +659,10 @@ static void add_client_options(struct dh
+ * client reverts to using the IP broadcast address.
+ */
+
+-static int raw_bcast_from_client_config_ifindex(struct dhcp_packet *packet)
++static int raw_bcast_from_client_config_ifindex(struct dhcp_packet *packet, uint32_t src_nip)
+ {
+ return udhcp_send_raw_packet(packet,
+- /*src*/ INADDR_ANY, CLIENT_PORT,
++ /*src*/ src_nip, CLIENT_PORT,
+ /*dst*/ INADDR_BROADCAST, SERVER_PORT, MAC_BCAST_ADDR,
+ client_config.ifindex);
+ }
+@@ -673,7 +673,7 @@ static int bcast_or_ucast(struct dhcp_pa
+ return udhcp_send_kernel_packet(packet,
+ ciaddr, CLIENT_PORT,
+ server, SERVER_PORT);
+- return raw_bcast_from_client_config_ifindex(packet);
++ return raw_bcast_from_client_config_ifindex(packet, ciaddr);
+ }
+
+ /* Broadcast a DHCP discover packet to the network, with an optionally requested IP */
+@@ -701,7 +701,7 @@ static NOINLINE int send_discover(uint32
+
+ if (msgs++ < 3)
+ bb_info_msg("Sending discover...");
+- return raw_bcast_from_client_config_ifindex(&packet);
++ return raw_bcast_from_client_config_ifindex(&packet, INADDR_ANY);
+ }
+
+ /* Broadcast a DHCP request message */
+@@ -745,7 +745,7 @@ static NOINLINE int send_select(uint32_t
+
+ addr.s_addr = requested;
+ bb_info_msg("Sending select for %s...", inet_ntoa(addr));
+- return raw_bcast_from_client_config_ifindex(&packet);
++ return raw_bcast_from_client_config_ifindex(&packet, INADDR_ANY);
+ }
+
+ /* Unicast or broadcast a DHCP renew message */
+@@ -813,7 +813,7 @@ static NOINLINE int send_decline(/*uint3
+ udhcp_add_simple_option(&packet, DHCP_SERVER_ID, server);
+
+ bb_info_msg("Sending decline...");
+- return raw_bcast_from_client_config_ifindex(&packet);
++ return raw_bcast_from_client_config_ifindex(&packet, INADDR_ANY);
+ }
+ #endif
+