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authorIdo Schimmel <idosch@nvidia.com>2023-04-19 17:34:53 +0200
committerDavid S. Miller <davem@davemloft.net>2023-04-21 09:25:49 +0200
commite408336a693e0fd74ba1b959627594b80f1761c3 (patch)
treef0a487c12e7383eaa3414ac34c85dd93e6d078db /net/bridge
parentbridge: Reorder neighbor suppression check when flooding (diff)
downloadlinux-e408336a693e0fd74ba1b959627594b80f1761c3.tar.xz
linux-e408336a693e0fd74ba1b959627594b80f1761c3.zip
bridge: Pass VLAN ID to br_flood()
Subsequent patches are going to add per-{Port, VLAN} neighbor suppression, which will require br_flood() to potentially suppress ARP / NS packets on a per-{Port, VLAN} basis. As a preparation, pass the VLAN ID of the packet as another argument to br_flood(). Signed-off-by: Ido Schimmel <idosch@nvidia.com> Acked-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge')
-rw-r--r--net/bridge/br_device.c8
-rw-r--r--net/bridge/br_forward.c3
-rw-r--r--net/bridge/br_input.c2
-rw-r--r--net/bridge/br_private.h3
4 files changed, 9 insertions, 7 deletions
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index df47c876230e..8eca8a5c80c6 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -80,10 +80,10 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
dest = eth_hdr(skb)->h_dest;
if (is_broadcast_ether_addr(dest)) {
- br_flood(br, skb, BR_PKT_BROADCAST, false, true);
+ br_flood(br, skb, BR_PKT_BROADCAST, false, true, vid);
} else if (is_multicast_ether_addr(dest)) {
if (unlikely(netpoll_tx_running(dev))) {
- br_flood(br, skb, BR_PKT_MULTICAST, false, true);
+ br_flood(br, skb, BR_PKT_MULTICAST, false, true, vid);
goto out;
}
if (br_multicast_rcv(&brmctx, &pmctx_null, vlan, skb, vid)) {
@@ -96,11 +96,11 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
br_multicast_querier_exists(brmctx, eth_hdr(skb), mdst))
br_multicast_flood(mdst, skb, brmctx, false, true);
else
- br_flood(br, skb, BR_PKT_MULTICAST, false, true);
+ br_flood(br, skb, BR_PKT_MULTICAST, false, true, vid);
} else if ((dst = br_fdb_find_rcu(br, dest, vid)) != NULL) {
br_forward(dst->dst, skb, false, true);
} else {
- br_flood(br, skb, BR_PKT_UNICAST, false, true);
+ br_flood(br, skb, BR_PKT_UNICAST, false, true, vid);
}
out:
rcu_read_unlock();
diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c
index 0fe133fa214c..94a8d757ae4e 100644
--- a/net/bridge/br_forward.c
+++ b/net/bridge/br_forward.c
@@ -197,7 +197,8 @@ out:
/* called under rcu_read_lock */
void br_flood(struct net_bridge *br, struct sk_buff *skb,
- enum br_pkt_type pkt_type, bool local_rcv, bool local_orig)
+ enum br_pkt_type pkt_type, bool local_rcv, bool local_orig,
+ u16 vid)
{
struct net_bridge_port *prev = NULL;
struct net_bridge_port *p;
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 3027e8f6be15..fc17b9fd93e6 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -207,7 +207,7 @@ int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb
br_forward(dst->dst, skb, local_rcv, false);
} else {
if (!mcast_hit)
- br_flood(br, skb, pkt_type, local_rcv, false);
+ br_flood(br, skb, pkt_type, local_rcv, false, vid);
else
br_multicast_flood(mdst, skb, brmctx, local_rcv, false);
}
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 7264fd40f82f..1ff4d64ab584 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -849,7 +849,8 @@ void br_forward(const struct net_bridge_port *to, struct sk_buff *skb,
bool local_rcv, bool local_orig);
int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb);
void br_flood(struct net_bridge *br, struct sk_buff *skb,
- enum br_pkt_type pkt_type, bool local_rcv, bool local_orig);
+ enum br_pkt_type pkt_type, bool local_rcv, bool local_orig,
+ u16 vid);
/* return true if both source port and dest port are isolated */
static inline bool br_skb_isolated(const struct net_bridge_port *to,