diff options
| author | Eric Dumazet <edumazet@google.com> | 2019-06-09 03:58:51 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-06-10 06:10:19 +0300 |
| commit | c67b85558ff20cb1ff20874461d12af456bee5d0 (patch) | |
| tree | 74fbc1da8b19b683614d91c512a4a73c04a873a9 /include/net/inet_timewait_sock.h | |
| parent | 6566cd3690c19759b57757b171e9d605bd38432b (diff) | |
| download | linux-c67b85558ff20cb1ff20874461d12af456bee5d0.tar.xz | |
ipv6: tcp: send consistent autoflowlabel in TIME_WAIT state
In case autoflowlabel is in action, skb_get_hash_flowi6()
derives a non zero skb->hash to the flowlabel.
If skb->hash is zero, a flow dissection is performed.
Since all TCP skbs sent from ESTABLISH state inherit their
skb->hash from sk->sk_txhash, we better keep a copy
of sk->sk_txhash into the TIME_WAIT socket.
After this patch, ACK or RST packets sent on behalf of
a TIME_WAIT socket have the flowlabel that was previously
used by the flow.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/inet_timewait_sock.h')
| -rw-r--r-- | include/net/inet_timewait_sock.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/inet_timewait_sock.h b/include/net/inet_timewait_sock.h index c2f756aedc54..aef38c140014 100644 --- a/include/net/inet_timewait_sock.h +++ b/include/net/inet_timewait_sock.h @@ -70,6 +70,7 @@ struct inet_timewait_sock { tw_flowlabel : 20, tw_pad : 2, /* 2 bits hole */ tw_tos : 8; + u32 tw_txhash; struct timer_list tw_timer; struct inet_bind_bucket *tw_tb; }; |