ipv6: tcp: fix TCLASS value in ACK messages sent from TIME_WAIT

commit 66b13d99d96a (ipv4: tcp: fix TOS value in ACK messages sent from
TIME_WAIT) fixed IPv4 only.

This part is for the IPv6 side, adding a tclass param to ip6_xmit()

We alias tw_tclass and tw_tos, if socket family is INET6.

[ if sockets is ipv4-mapped, only IP_TOS socket option is used to fill
TOS field, TCLASS is not taken into account ]

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index b74f76117dcf..17ee85ce148d 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -271,7 +271,7 @@ static int dccp_v6_send_response(struct sock *sk, struct request_sock *req,
                                                          &ireq6->loc_addr,
                                                          &ireq6->rmt_addr);
                 ipv6_addr_copy(&fl6.daddr, &ireq6->rmt_addr);
-                err = ip6_xmit(sk, skb, &fl6, opt);
+                err = ip6_xmit(sk, skb, &fl6, opt, np->tclass);
                 err = net_xmit_eval(err);
         }
 
@@ -326,7 +326,7 @@ static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
         dst = ip6_dst_lookup_flow(ctl_sk, &fl6, NULL, false);
         if (!IS_ERR(dst)) {
                 skb_dst_set(skb, dst);
-                ip6_xmit(ctl_sk, skb, &fl6, NULL);
+                ip6_xmit(ctl_sk, skb, &fl6, NULL, 0);
                 DCCP_INC_STATS_BH(DCCP_MIB_OUTSEGS);
                 DCCP_INC_STATS_BH(DCCP_MIB_OUTRSTS);
                 return;