Add bridge preferred mac patch
git-svn-id: svn://svn.openwrt.org/openwrt/branches/buildroot-ng/openwrt@4305 3c298f89-4303-0410-b956-a3cf2f4a3e73master
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b343254a02
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8667261123
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@ -0,0 +1,61 @@
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diff -rup linux-rb24/net/bridge/br_device.c linux-rb24bpatch/net/bridge/br_device.c
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--- linux-rb24/net/bridge/br_device.c 2002-02-25 11:38:14.000000000 -0800
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+++ linux-rb24bpatch/net/bridge/br_device.c 2005-07-05 02:09:17.000000000 -0700
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@@ -121,6 +121,23 @@ static int br_dev_accept_fastpath(struct
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return -1;
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}
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+static int
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+br_set_mac_address(struct net_device *dev, void *addr)
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+{
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+ struct net_bridge *br = dev->priv;
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+ struct sockaddr *sa = (struct sockaddr *) addr;
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+
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+ write_lock_bh(&br->lock);
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+
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+ memcpy(br->preferred_id.addr, sa->sa_data, ETH_ALEN);
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+
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+ br_stp_recalculate_bridge_id(br);
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+
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+ write_unlock_bh(&br->lock);
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+
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+ return 0;
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+}
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+
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void br_dev_setup(struct net_device *dev)
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{
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memset(dev->dev_addr, 0, ETH_ALEN);
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@@ -133,5 +150,5 @@ void br_dev_setup(struct net_device *dev
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dev->stop = br_dev_stop;
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dev->accept_fastpath = br_dev_accept_fastpath;
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dev->tx_queue_len = 0;
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- dev->set_mac_address = NULL;
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+ dev->set_mac_address = br_set_mac_address;
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}
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diff -rup linux-rb24/net/bridge/br_private.h linux-rb24bpatch/net/bridge/br_private.h
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--- linux-rb24/net/bridge/br_private.h 2004-08-07 16:26:06.000000000 -0700
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+++ linux-rb24bpatch/net/bridge/br_private.h 2005-07-05 02:12:56.000000000 -0700
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@@ -95,6 +95,7 @@ struct net_bridge
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int hello_time;
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int forward_delay;
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bridge_id bridge_id;
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+ bridge_id preferred_id;
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int bridge_max_age;
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int bridge_hello_time;
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int bridge_forward_delay;
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diff -rup linux-rb24/net/bridge/br_stp_if.c linux-rb24bpatch/net/bridge/br_stp_if.c
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--- linux-rb24/net/bridge/br_stp_if.c 2001-04-19 08:38:50.000000000 -0700
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+++ linux-rb24bpatch/net/bridge/br_stp_if.c 2005-07-05 02:22:11.000000000 -0700
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@@ -162,6 +162,12 @@ void br_stp_recalculate_bridge_id(struct
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p = br->port_list;
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while (p != NULL) {
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+ /* match against preferred address first */
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+ if (memcmp(p->dev->dev_addr,br->preferred_id.addr,ETH_ALEN) == 0) {
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+ addr = p->dev->dev_addr;
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+ break;
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+ }
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+
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if (addr == br_mac_zero ||
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memcmp(p->dev->dev_addr, addr, ETH_ALEN) < 0)
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addr = p->dev->dev_addr;
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