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authorPau Espin Pedrol <pespin.shar@gmail.com>2017-01-06 20:33:28 +0100
committerPablo Neira Ayuso <pablo@netfilter.org>2017-01-09 18:01:03 +0100
commitbf99b4ded5f8a4767dbb9d180626f06c51f9881f (patch)
tree80c6db27569306f6a01e7341f44fbf338a8775e2 /net/ipv4/ip_output.c
parentcc31d43b4154ad5a7d8aa5543255a93b7e89edc2 (diff)
downloadlinux-bf99b4ded5f8a4767dbb9d180626f06c51f9881f.tar.bz2
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>
Diffstat (limited to 'net/ipv4/ip_output.c')
-rw-r--r--net/ipv4/ip_output.c1
1 files changed, 1 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)) {