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authorJamal Hadi Salim <jhs@mojatatu.com>2014-07-10 07:01:58 -0400
committerDavid S. Miller <davem@davemloft.net>2014-07-10 12:37:33 -0700
commit5d5eacb34c9e1fdc0a47b885d832eaa4de860dc7 (patch)
tree880d3849c474c2d307928b99d22f9a4354e1387a /net
parent69b4b7a4148e94a3fe7f06f72ee70113a6c61837 (diff)
bridge: fdb dumping takes a filter device
Dumping a bridge fdb dumps every fdb entry held. With this change we are going to filter on selected bridge port. Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/bridge/br_fdb.c5
-rw-r--r--net/bridge/br_private.h2
-rw-r--r--net/core/rtnetlink.c9
3 files changed, 12 insertions, 4 deletions
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index 7be33667a83..6edecd11ecf 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -676,6 +676,7 @@ errout:
int br_fdb_dump(struct sk_buff *skb,
struct netlink_callback *cb,
struct net_device *dev,
+ struct net_device *filter_dev,
int idx)
{
struct net_bridge *br = netdev_priv(dev);
@@ -691,6 +692,10 @@ int br_fdb_dump(struct sk_buff *skb,
if (idx < cb->args[0])
goto skip;
+ if (filter_dev && (!f->dst || !f->dst->dev ||
+ f->dst->dev != filter_dev))
+ goto skip;
+
if (fdb_fill_info(skb, br, f,
NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq,
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 23caf5b0309..62a7fa2e356 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -399,7 +399,7 @@ int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[],
int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev,
const unsigned char *addr, u16 nlh_flags);
int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
- struct net_device *dev, int idx);
+ struct net_device *dev, struct net_device *fdev, int idx);
int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p);
void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p);
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 27acaf7ff6d..90a906e7ac2 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -2517,6 +2517,7 @@ skip:
int ndo_dflt_fdb_dump(struct sk_buff *skb,
struct netlink_callback *cb,
struct net_device *dev,
+ struct net_device *filter_dev,
int idx)
{
int err;
@@ -2547,13 +2548,15 @@ static int rtnl_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb)
br_dev = netdev_master_upper_dev_get(dev);
ops = br_dev->netdev_ops;
if (ops->ndo_fdb_dump)
- idx = ops->ndo_fdb_dump(skb, cb, dev, idx);
+ idx = ops->ndo_fdb_dump(skb, cb, dev, NULL,
+ idx);
}
if (dev->netdev_ops->ndo_fdb_dump)
- idx = dev->netdev_ops->ndo_fdb_dump(skb, cb, dev, idx);
+ idx = dev->netdev_ops->ndo_fdb_dump(skb, cb, dev, NULL,
+ idx);
else
- idx = ndo_dflt_fdb_dump(skb, cb, dev, idx);
+ idx = ndo_dflt_fdb_dump(skb, cb, dev, NULL, idx);
}
rcu_read_unlock();