Eric Dumazet 4bdc3d6614 tcp/dccp: fix behavior of stale SYN_RECV request sockets ...

When a TCP/DCCP listener is closed, its pending SYN_RECV request sockets
become stale, meaning 3WHS can not complete.

But current behavior is wrong :
incoming packets finding such stale sockets are dropped.

We need instead to cleanup the request socket and perform another
lookup :
- Incoming ACK will give a RST answer,
- SYN rtx might find another listener if available.
- We expedite cleanup of request sockets and old listener socket.

Fixes: 079096f103fa ("tcp/dccp: install syn_recv requests into ehash table")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2015-10-13 18:26:34 -07:00

..

ccids

dccp: re-enable debug macro

2014-02-16 23:45:00 -05:00

ackvec.c

dccp: drop null test before destroy functions

2015-09-15 16:49:43 -07:00

ackvec.h

net: dccp: Remove extern from function prototypes

2013-10-19 19:12:11 -04:00

ccid.c

dccp: drop null test before destroy functions

2015-09-15 16:49:43 -07:00

ccid.h

net: dccp: Remove extern from function prototypes

2013-10-19 19:12:11 -04:00

dccp.h

net/dccp: dccp_bad_service_code can be boolean

2015-10-09 07:49:03 -07:00

diag.c

sock_diag: specify info_size per inet protocol

2015-06-15 19:49:22 -07:00

feat.c

dccp: kerneldoc warning fixes

2014-11-18 15:26:31 -05:00

feat.h

net: dccp: Remove extern from function prototypes

2013-10-19 19:12:11 -04:00

input.c

dccp: spelling s/reseting/resetting

2014-11-18 15:26:32 -05:00

ipv4.c

tcp/dccp: fix behavior of stale SYN_RECV request sockets

2015-10-13 18:26:34 -07:00

ipv6.c

tcp/dccp: fix behavior of stale SYN_RECV request sockets

2015-10-13 18:26:34 -07:00

ipv6.h

inet: includes a sock_common in request_sock

2013-10-10 00:08:07 -04:00

Kconfig

net/dccp: remove depends on CONFIG_EXPERIMENTAL

2013-01-11 11:39:34 -08:00

Makefile

dccp: Policy-based packet dequeueing infrastructure

2010-12-07 13:47:12 +01:00

minisocks.c

dccp: constify dccp_create_openreq_child() sock argument

2015-09-29 16:53:08 -07:00

options.c

dccp: remove obsolete code

2014-01-04 20:18:49 -05:00

output.c

dccp: constify dccp_make_response() socket argument

2015-09-25 13:00:39 -07:00

probe.c

net: Remove iocb argument from sendmsg and recvmsg

2015-03-02 13:06:31 -05:00

proto.c

tcp: fix recv with flags MSG_WAITALL | MSG_PEEK

2015-07-27 01:06:53 -07:00

qpolicy.c

dccp qpolicy: Parameter checking of cmsg qpolicy parameters

2010-12-07 13:47:12 +01:00

sysctl.c

dccp: make the request_retries minimum is 1

2014-05-14 15:34:16 -04:00

timer.c

inet: get rid of central tcp/dccp listener timer

2015-03-20 12:40:25 -04:00