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-rw-r--r--net/bridge/br_device.c5
-rw-r--r--net/bridge/br_input.c6
-rw-r--r--net/bridge/br_multicast.c9
-rw-r--r--net/bridge/br_netfilter.c22
-rw-r--r--net/bridge/br_netlink.c15
5 files changed, 42 insertions, 15 deletions
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index a6b2f86378c..32b8f9f7f79 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -49,7 +49,9 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
skb_pull(skb, ETH_HLEN);
rcu_read_lock();
- if (is_multicast_ether_addr(dest)) {
+ if (is_broadcast_ether_addr(dest))
+ br_flood_deliver(br, skb);
+ else if (is_multicast_ether_addr(dest)) {
if (unlikely(netpoll_tx_running(dev))) {
br_flood_deliver(br, skb);
goto out;
@@ -243,6 +245,7 @@ int br_netpoll_enable(struct net_bridge_port *p)
goto out;
np->dev = p->dev;
+ strlcpy(np->dev_name, p->dev->name, IFNAMSIZ);
err = __netpoll_setup(np);
if (err) {
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index f3ac1e858ee..f06ee39c73f 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -60,7 +60,7 @@ int br_handle_frame_finish(struct sk_buff *skb)
br = p->br;
br_fdb_update(br, p, eth_hdr(skb)->h_source);
- if (is_multicast_ether_addr(dest) &&
+ if (!is_broadcast_ether_addr(dest) && is_multicast_ether_addr(dest) &&
br_multicast_rcv(br, p, skb))
goto drop;
@@ -77,7 +77,9 @@ int br_handle_frame_finish(struct sk_buff *skb)
dst = NULL;
- if (is_multicast_ether_addr(dest)) {
+ if (is_broadcast_ether_addr(dest))
+ skb2 = skb;
+ else if (is_multicast_ether_addr(dest)) {
mdst = br_mdb_get(br, skb);
if (mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) {
if ((mdst && mdst->mglist) ||
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 2f14eafdeea..2d85ca7111d 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -1379,8 +1379,11 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br,
if (unlikely(ip_fast_csum((u8 *)iph, iph->ihl)))
return -EINVAL;
- if (iph->protocol != IPPROTO_IGMP)
+ if (iph->protocol != IPPROTO_IGMP) {
+ if ((iph->daddr & IGMP_LOCAL_GROUP_MASK) != IGMP_LOCAL_GROUP)
+ BR_INPUT_SKB_CB(skb)->mrouters_only = 1;
return 0;
+ }
len = ntohs(iph->tot_len);
if (skb->len < len || len < ip_hdrlen(skb))
@@ -1424,7 +1427,7 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br,
switch (ih->type) {
case IGMP_HOST_MEMBERSHIP_REPORT:
case IGMPV2_HOST_MEMBERSHIP_REPORT:
- BR_INPUT_SKB_CB(skb2)->mrouters_only = 1;
+ BR_INPUT_SKB_CB(skb)->mrouters_only = 1;
err = br_ip4_multicast_add_group(br, port, ih->group);
break;
case IGMPV3_HOST_MEMBERSHIP_REPORT:
@@ -1543,7 +1546,7 @@ static int br_multicast_ipv6_rcv(struct net_bridge *br,
goto out;
}
mld = (struct mld_msg *)skb_transport_header(skb2);
- BR_INPUT_SKB_CB(skb2)->mrouters_only = 1;
+ BR_INPUT_SKB_CB(skb)->mrouters_only = 1;
err = br_ip6_multicast_add_group(br, port, &mld->mld_mca);
break;
}
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index 3fa123185e8..d6ec3720c77 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -104,10 +104,22 @@ static void fake_update_pmtu(struct dst_entry *dst, u32 mtu)
{
}
+static u32 *fake_cow_metrics(struct dst_entry *dst, unsigned long old)
+{
+ return NULL;
+}
+
+static struct neighbour *fake_neigh_lookup(const struct dst_entry *dst, const void *daddr)
+{
+ return NULL;
+}
+
static struct dst_ops fake_dst_ops = {
.family = AF_INET,
.protocol = cpu_to_be16(ETH_P_IP),
.update_pmtu = fake_update_pmtu,
+ .cow_metrics = fake_cow_metrics,
+ .neigh_lookup = fake_neigh_lookup,
};
/*
@@ -337,24 +349,26 @@ static int br_nf_pre_routing_finish_ipv6(struct sk_buff *skb)
static int br_nf_pre_routing_finish_bridge(struct sk_buff *skb)
{
struct nf_bridge_info *nf_bridge = skb->nf_bridge;
+ struct neighbour *neigh;
struct dst_entry *dst;
skb->dev = bridge_parent(skb->dev);
if (!skb->dev)
goto free_skb;
dst = skb_dst(skb);
- if (dst->hh) {
- neigh_hh_bridge(dst->hh, skb);
+ neigh = dst_get_neighbour(dst);
+ if (neigh->hh.hh_len) {
+ neigh_hh_bridge(&neigh->hh, skb);
skb->dev = nf_bridge->physindev;
return br_handle_frame_finish(skb);
- } else if (dst->neighbour) {
+ } else {
/* the neighbour function below overwrites the complete
* MAC header, so we save the Ethernet source address and
* protocol number. */
skb_copy_from_linear_data_offset(skb, -(ETH_HLEN-ETH_ALEN), skb->nf_bridge->data, ETH_HLEN-ETH_ALEN);
/* tell br_dev_xmit to continue with forwarding */
nf_bridge->mask |= BRNF_BRIDGED_DNAT;
- return dst->neighbour->output(skb);
+ return neigh->output(neigh, skb);
}
free_skb:
kfree_skb(skb);
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index ffb0dc4cc0e..6814083a92f 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -218,19 +218,24 @@ int __init br_netlink_init(void)
if (err < 0)
goto err1;
- err = __rtnl_register(PF_BRIDGE, RTM_GETLINK, NULL, br_dump_ifinfo);
+ err = __rtnl_register(PF_BRIDGE, RTM_GETLINK, NULL,
+ br_dump_ifinfo, NULL);
if (err)
goto err2;
- err = __rtnl_register(PF_BRIDGE, RTM_SETLINK, br_rtm_setlink, NULL);
+ err = __rtnl_register(PF_BRIDGE, RTM_SETLINK,
+ br_rtm_setlink, NULL, NULL);
if (err)
goto err3;
- err = __rtnl_register(PF_BRIDGE, RTM_NEWNEIGH, br_fdb_add, NULL);
+ err = __rtnl_register(PF_BRIDGE, RTM_NEWNEIGH,
+ br_fdb_add, NULL, NULL);
if (err)
goto err3;
- err = __rtnl_register(PF_BRIDGE, RTM_DELNEIGH, br_fdb_delete, NULL);
+ err = __rtnl_register(PF_BRIDGE, RTM_DELNEIGH,
+ br_fdb_delete, NULL, NULL);
if (err)
goto err3;
- err = __rtnl_register(PF_BRIDGE, RTM_GETNEIGH, NULL, br_fdb_dump);
+ err = __rtnl_register(PF_BRIDGE, RTM_GETNEIGH,
+ NULL, br_fdb_dump, NULL);
if (err)
goto err3;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-03-03 14:46:28 +0000