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| author | Xin Long <lucien.xin@gmail.com> | 2019-03-13 16:33:29 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-04 09:15:18 +0200 |
| commit | 208decebe101968ea9a9069b32c3f9883ac2298f (patch) | |
| tree | d4d2ae4d67572ebdca3b32fbf99978d7e8b866ae /net | |
| parent | fdad255b70c1132da2ba4fe56a625203f2794579 (diff) | |
| download | linux-stable-208decebe101968ea9a9069b32c3f9883ac2298f.tar.gz linux-stable-208decebe101968ea9a9069b32c3f9883ac2298f.tar.bz2 linux-stable-208decebe101968ea9a9069b32c3f9883ac2298f.zip | |
netfilter: bridge: set skb transport_header before entering NF_INET_PRE_ROUTING
[ Upstream commit e166e4fdaced850bee3d5ee12a5740258fb30587 ]
Since Commit 21d1196a35f5 ("ipv4: set transport header earlier"),
skb->transport_header has been always set before entering INET
netfilter. This patch is to set skb->transport_header for bridge
before entering INET netfilter by bridge-nf-call-iptables.
It also fixes an issue that sctp_error() couldn't compute a right
csum due to unset skb->transport_header.
Fixes: e6d8b64b34aa ("net: sctp: fix and consolidate SCTP checksumming code")
Reported-by: Li Shuang <shuali@redhat.com>
Suggested-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/bridge/br_netfilter_hooks.c | 1 | ||||
| -rw-r--r-- | net/bridge/br_netfilter_ipv6.c | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/net/bridge/br_netfilter_hooks.c b/net/bridge/br_netfilter_hooks.c index 5fd283d9929e..89936e0d55c9 100644 --- a/net/bridge/br_netfilter_hooks.c +++ b/net/bridge/br_netfilter_hooks.c @@ -512,6 +512,7 @@ static unsigned int br_nf_pre_routing(void *priv, nf_bridge->ipv4_daddr = ip_hdr(skb)->daddr; skb->protocol = htons(ETH_P_IP); + skb->transport_header = skb->network_header + ip_hdr(skb)->ihl * 4; NF_HOOK(NFPROTO_IPV4, NF_INET_PRE_ROUTING, state->net, state->sk, skb, skb->dev, NULL, diff --git a/net/bridge/br_netfilter_ipv6.c b/net/bridge/br_netfilter_ipv6.c index 5811208863b7..09d5e0c7b3ba 100644 --- a/net/bridge/br_netfilter_ipv6.c +++ b/net/bridge/br_netfilter_ipv6.c @@ -235,6 +235,8 @@ unsigned int br_nf_pre_routing_ipv6(void *priv, nf_bridge->ipv6_daddr = ipv6_hdr(skb)->daddr; skb->protocol = htons(ETH_P_IPV6); + skb->transport_header = skb->network_header + sizeof(struct ipv6hdr); + NF_HOOK(NFPROTO_IPV6, NF_INET_PRE_ROUTING, state->net, state->sk, skb, skb->dev, NULL, br_nf_pre_routing_finish_ipv6); |