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(parent: d93c346) | patch
ipv6: add tos reflection in TCP reset and ack
authorWei Wang <weiwan@google.com>
Tue, 8 Sep 2020 21:29:02 +0000 (14:29 -0700)
committerDavid S. Miller <davem@davemloft.net>
Wed, 9 Sep 2020 03:20:55 +0000 (20:20 -0700)
commitc9d724a64aca864cd7db55f2b90c7a0b5c63f5cc
tree28bc95eee99af85851032a38ea07bb19a7781c51tree | snapshot
parentd93c346c04ee8ef8ce2d871ef97f418fad9bc9fecommit | diff
ipv6: add tos reflection in TCP reset and ack

Currently, ipv6 stack does not do any TOS reflection. To make the
behavior consistent with v4 stack, this commit adds TOS reflection in
tcp_v6_reqsk_send_ack() and tcp_v6_send_reset(). We clear the lower
2-bit ECN value of the received TOS in compliance with RFC 3168 6.1.5
robustness principles.

Signed-off-by: Wei Wang <weiwan@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv6/tcp_ipv6.c diff | blob | history
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