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Add bridge preferred mac patch 

git-svn-id: svn://svn.openwrt.org/openwrt/branches/buildroot-ng/openwrt@4305 3c298f89-4303-0410-b956-a3cf2f4a3e73
master
Gerry Rozema 2006-07-27 18:23:19 +00:00
parent b343254a02
commit 8667261123
1 changed files with 61 additions and 0 deletions
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61
target/linux/generic-2.4/patches/228-bridge-preferred.patch Normal file
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@ -0,0 +1,61 @@
diff -rup linux-rb24/net/bridge/br_device.c linux-rb24bpatch/net/bridge/br_device.c
--- linux-rb24/net/bridge/br_device.c 2002-02-25 11:38:14.000000000 -0800
+++ linux-rb24bpatch/net/bridge/br_device.c 2005-07-05 02:09:17.000000000 -0700
@@ -121,6 +121,23 @@ static int br_dev_accept_fastpath(struct
return -1;
}
+static int
+br_set_mac_address(struct net_device *dev, void *addr)
+{
+ struct net_bridge *br = dev->priv;
+ struct sockaddr *sa = (struct sockaddr *) addr;
+
+ write_lock_bh(&br->lock);
+
+ memcpy(br->preferred_id.addr, sa->sa_data, ETH_ALEN);
+
+ br_stp_recalculate_bridge_id(br);
+
+ write_unlock_bh(&br->lock);
+
+ return 0;
+}
+
void br_dev_setup(struct net_device *dev)
{
memset(dev->dev_addr, 0, ETH_ALEN);
@@ -133,5 +150,5 @@ void br_dev_setup(struct net_device *dev
dev->stop = br_dev_stop;
dev->accept_fastpath = br_dev_accept_fastpath;
dev->tx_queue_len = 0;
- dev->set_mac_address = NULL;
+ dev->set_mac_address = br_set_mac_address;
}
diff -rup linux-rb24/net/bridge/br_private.h linux-rb24bpatch/net/bridge/br_private.h
--- linux-rb24/net/bridge/br_private.h 2004-08-07 16:26:06.000000000 -0700
+++ linux-rb24bpatch/net/bridge/br_private.h 2005-07-05 02:12:56.000000000 -0700
@@ -95,6 +95,7 @@ struct net_bridge
int hello_time;
int forward_delay;
bridge_id bridge_id;
+ bridge_id preferred_id;
int bridge_max_age;
int bridge_hello_time;
int bridge_forward_delay;
diff -rup linux-rb24/net/bridge/br_stp_if.c linux-rb24bpatch/net/bridge/br_stp_if.c
--- linux-rb24/net/bridge/br_stp_if.c 2001-04-19 08:38:50.000000000 -0700
+++ linux-rb24bpatch/net/bridge/br_stp_if.c 2005-07-05 02:22:11.000000000 -0700
@@ -162,6 +162,12 @@ void br_stp_recalculate_bridge_id(struct
p = br->port_list;
while (p != NULL) {
+ /* match against preferred address first */
+ if (memcmp(p->dev->dev_addr,br->preferred_id.addr,ETH_ALEN) == 0) {
+ addr = p->dev->dev_addr;
+ break;
+ }
+
if (addr == br_mac_zero ||
memcmp(p->dev->dev_addr, addr, ETH_ALEN) < 0)
addr = p->dev->dev_addr;