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authorOctavian Purdila <octavian.purdila@intel.com>2014-06-25 17:10:00 +0300
committerDavid S. Miller <davem@davemloft.net>2014-06-27 15:53:36 -0700
commit2aec4a297b21f3690486bbf8f7d5d29281ba6a48 (patch)
tree8df79a2b1eaf021a541eb6a5dde384c7cf2acbbe /net/ipv6/tcp_ipv6.c
parenttcp: unify tcp_v4_rtx_synack and tcp_v6_rtx_synack (diff)
downloadlinux-dev-2aec4a297b21f3690486bbf8f7d5d29281ba6a48.tar.xz
linux-dev-2aec4a297b21f3690486bbf8f7d5d29281ba6a48.zip
tcp: add mss_clamp to tcp_request_sock_ops
Add mss_clamp member to tcp_request_sock_ops so that we can later unify tcp_v4_conn_request and tcp_v6_conn_request. Signed-off-by: Octavian Purdila <octavian.purdila@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/tcp_ipv6.c')
-rw-r--r--net/ipv6/tcp_ipv6.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 41389bbb08c0..ad658332cf7d 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -754,6 +754,8 @@ struct request_sock_ops tcp6_request_sock_ops __read_mostly = {
};
static const struct tcp_request_sock_ops tcp_request_sock_ipv6_ops = {
+ .mss_clamp = IPV6_MIN_MTU - sizeof(struct tcphdr) -
+ sizeof(struct ipv6hdr),
#ifdef CONFIG_TCP_MD5SIG
.md5_lookup = tcp_v6_reqsk_md5_lookup,
.calc_md5_hash = tcp_v6_md5_hash_skb,
@@ -1047,7 +1049,7 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
af_ops = tcp_rsk(req)->af_specific = &tcp_request_sock_ipv6_ops;
tcp_clear_options(&tmp_opt);
- tmp_opt.mss_clamp = IPV6_MIN_MTU - sizeof(struct tcphdr) - sizeof(struct ipv6hdr);
+ tmp_opt.mss_clamp = af_ops->mss_clamp;
tmp_opt.user_mss = tp->rx_opt.user_mss;
tcp_parse_options(skb, &tmp_opt, 0, want_cookie ? NULL : &foc);