From 50a8accf10627b343109a9c9d5c361751bf753b0 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 5 Jun 2019 07:55:10 -0700 Subject: [PATCH] ipv6: tcp: send consistent flowlabel in TIME_WAIT state After commit 1d13a96c74fc ("ipv6: tcp: fix flowlabel value in ACK messages"), we stored in tw_flowlabel the flowlabel, in the case ACK packets needed to be sent on behalf of a TIME_WAIT socket. We can use the same field so that RST packets sent from TIME_WAIT state also use a consistent flowlabel. Signed-off-by: Eric Dumazet Cc: Florent Fourcot Signed-off-by: David S. Miller --- net/ipv6/tcp_ipv6.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 4ccb06ea8ce3..f4e609a48e68 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -982,6 +982,8 @@ static void tcp_v6_send_reset(const struct sock *sk, struct sk_buff *skb) oif = sk->sk_bound_dev_if; if (sk_fullsock(sk)) trace_tcp_send_reset(sk, skb); + if (sk->sk_state == TCP_TIME_WAIT) + label = cpu_to_be32(inet_twsk(sk)->tw_flowlabel); } else { if (net->ipv6.sysctl.flowlabel_reflect & 2) label = ip6_flowlabel(ipv6h); -- 2.39.2