summaryrefslogtreecommitdiff
path: root/net/bridge/netfilter
diff options
context:
space:
mode:
authorJakub Kicinski <kuba@kernel.org>2024-03-01 01:17:54 +0300
committerJakub Kicinski <kuba@kernel.org>2024-03-01 01:24:56 +0300
commit65f5dd4f02a89df429b8212b4c2f3ada6c4f3fc1 (patch)
tree4c201974fa7e35e99c530ab3d0429dc894d64cf3 /net/bridge/netfilter
parent489645d3f1332f65a9337cb31c0ee12a1259a484 (diff)
parent87adedeba51a822533649b143232418b9e26d08b (diff)
downloadlinux-65f5dd4f02a89df429b8212b4c2f3ada6c4f3fc1.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. Conflicts: net/mptcp/protocol.c adf1bb78dab5 ("mptcp: fix snd_wnd initialization for passive socket") 9426ce476a70 ("mptcp: annotate lockless access for RX path fields") https://lore.kernel.org/all/20240228103048.19255709@canb.auug.org.au/ Adjacent changes: drivers/dpll/dpll_core.c 0d60d8df6f49 ("dpll: rely on rcu for netdev_dpll_pin()") e7f8df0e81bf ("dpll: move xa_erase() call in to match dpll_pin_alloc() error path order") drivers/net/veth.c 1ce7d306ea63 ("veth: try harder when allocating queue memory") 0bef512012b1 ("net: add netdev_lockdep_set_classes() to virtual drivers") drivers/net/wireless/intel/iwlwifi/mvm/d3.c 8c9bef26e98b ("wifi: iwlwifi: mvm: d3: implement suspend with MLO") 78f65fbf421a ("wifi: iwlwifi: mvm: ensure offloading TID queue exists") net/wireless/nl80211.c f78c1375339a ("wifi: nl80211: reject iftype change with mesh ID change") 414532d8aa89 ("wifi: cfg80211: use IEEE80211_MAX_MESH_ID_LEN appropriately") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/bridge/netfilter')
-rw-r--r--net/bridge/netfilter/nf_conntrack_bridge.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/net/bridge/netfilter/nf_conntrack_bridge.c b/net/bridge/netfilter/nf_conntrack_bridge.c
index abb090f94ed2..6f877e31709b 100644
--- a/net/bridge/netfilter/nf_conntrack_bridge.c
+++ b/net/bridge/netfilter/nf_conntrack_bridge.c
@@ -291,6 +291,30 @@ static unsigned int nf_ct_bridge_pre(void *priv, struct sk_buff *skb,
return nf_conntrack_in(skb, &bridge_state);
}
+static unsigned int nf_ct_bridge_in(void *priv, struct sk_buff *skb,
+ const struct nf_hook_state *state)
+{
+ enum ip_conntrack_info ctinfo;
+ struct nf_conn *ct;
+
+ if (skb->pkt_type == PACKET_HOST)
+ return NF_ACCEPT;
+
+ /* nf_conntrack_confirm() cannot handle concurrent clones,
+ * this happens for broad/multicast frames with e.g. macvlan on top
+ * of the bridge device.
+ */
+ ct = nf_ct_get(skb, &ctinfo);
+ if (!ct || nf_ct_is_confirmed(ct) || nf_ct_is_template(ct))
+ return NF_ACCEPT;
+
+ /* let inet prerouting call conntrack again */
+ skb->_nfct = 0;
+ nf_ct_put(ct);
+
+ return NF_ACCEPT;
+}
+
static void nf_ct_bridge_frag_save(struct sk_buff *skb,
struct nf_bridge_frag_data *data)
{
@@ -386,6 +410,12 @@ static struct nf_hook_ops nf_ct_bridge_hook_ops[] __read_mostly = {
.priority = NF_IP_PRI_CONNTRACK,
},
{
+ .hook = nf_ct_bridge_in,
+ .pf = NFPROTO_BRIDGE,
+ .hooknum = NF_BR_LOCAL_IN,
+ .priority = NF_IP_PRI_CONNTRACK_CONFIRM,
+ },
+ {
.hook = nf_ct_bridge_post,
.pf = NFPROTO_BRIDGE,
.hooknum = NF_BR_POST_ROUTING,