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| author | Eric Dumazet <edumazet@google.com> | 2012-07-17 12:29:30 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-11 09:03:48 -0800 |
| commit | 282190eab6442da4789ae3c3037c7b19d65eaf52 (patch) | |
| tree | 9ce2ae90e7978a7fd74f65bec892b8e85dd27129 /net/ipv4/igmp.c | |
| parent | ab5c718d0fd643ba6f2112235e12ea5222f4edf3 (diff) | |
| download | kernel_samsung_tuna-282190eab6442da4789ae3c3037c7b19d65eaf52.zip kernel_samsung_tuna-282190eab6442da4789ae3c3037c7b19d65eaf52.tar.gz kernel_samsung_tuna-282190eab6442da4789ae3c3037c7b19d65eaf52.tar.bz2 | |
tcp: refine SYN handling in tcp_validate_incoming
[ Upstream commit e371589917011efe6ff8c7dfb4e9e81934ac5855 ]
Followup of commit 0c24604b68fc (tcp: implement RFC 5961 4.2)
As reported by Vijay Subramanian, we should send a challenge ACK
instead of a dup ack if a SYN flag is set on a packet received out of
window.
This permits the ratelimiting to work as intended, and to increase
correct SNMP counters.
Suggested-by: Vijay Subramanian <subramanian.vijay@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Vijay Subramanian <subramanian.vijay@gmail.com>
Cc: Kiran Kumar Kella <kkiran@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/ipv4/igmp.c')
0 files changed, 0 insertions, 0 deletions