diff options
| author | Pau Espin Pedrol <pespin.shar@gmail.com> | 2017-01-06 20:33:28 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2017-01-09 18:01:03 +0100 |
| commit | bf99b4ded5f8a4767dbb9d180626f06c51f9881f (patch) | |
| tree | 80c6db27569306f6a01e7341f44fbf338a8775e2 | |
| parent | cc31d43b4154ad5a7d8aa5543255a93b7e89edc2 (diff) | |
| download | linux-bf99b4ded5f8a4767dbb9d180626f06c51f9881f.tar.gz linux-bf99b4ded5f8a4767dbb9d180626f06c51f9881f.tar.xz | |
tcp: fix mark propagation with fwmark_reflect enabled
Otherwise, RST packets generated by the TCP stack for non-existing
sockets always have mark 0.
The mark from the original packet is assigned to the netns_ipv4/6
socket used to send the response so that it can get copied into the
response skb when the socket sends it.
Fixes: e110861f8609 ("net: add a sysctl to reflect the fwmark on replies")
Cc: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: Pau Espin Pedrol <pau.espin@tessares.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
| -rw-r--r-- | net/ipv4/ip_output.c | 1 | ||||
| -rw-r--r-- | net/ipv6/tcp_ipv6.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index fac275c48108..b67719f45953 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -1629,6 +1629,7 @@ void ip_send_unicast_reply(struct sock *sk, struct sk_buff *skb, sk->sk_protocol = ip_hdr(skb)->protocol; sk->sk_bound_dev_if = arg->bound_dev_if; sk->sk_sndbuf = sysctl_wmem_default; + sk->sk_mark = fl4.flowi4_mark; err = ip_append_data(sk, &fl4, ip_reply_glue_bits, arg->iov->iov_base, len, 0, &ipc, &rt, MSG_DONTWAIT); if (unlikely(err)) { diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 73bc8fc68acd..2b20622a5824 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -840,6 +840,7 @@ static void tcp_v6_send_response(const struct sock *sk, struct sk_buff *skb, u32 dst = ip6_dst_lookup_flow(ctl_sk, &fl6, NULL); if (!IS_ERR(dst)) { skb_dst_set(buff, dst); + ctl_sk->sk_mark = fl6.flowi6_mark; ip6_xmit(ctl_sk, buff, &fl6, NULL, tclass); TCP_INC_STATS(net, TCP_MIB_OUTSEGS); if (rst) |