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Commit 5e6a3ce6 authored by Pavel Emelyanov's avatar Pavel Emelyanov Committed by David S. Miller
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tcp: Report mss_clamp with TCP_MAXSEG option in repair mode 



The mss_clamp is the only connection-time negotiated option which
cannot be obtained from the user space. Make the TCP_MAXSEG sockopt
report one in the repair mode.

Signed-off-by: default avatarPavel Emelyanov <xemul@openvz.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c0e88ff0

net/ipv4/tcp.c

+2 −0
Original line number Diff line number Diff line
@@ -2659,6 +2659,8 @@ static int do_tcp_getsockopt(struct sock *sk, int level, 
		val = tp->mss_cache;

		if (!val && ((1 << sk->sk_state) & (TCPF_CLOSE | TCPF_LISTEN)))

			val = tp->rx_opt.user_mss;

		if (tp->repair)

			val = tp->rx_opt.mss_clamp;

		break;

	case TCP_NODELAY:

		val = !!(tp->nonagle&TCP_NAGLE_OFF);