Sowmini Varadhan 10beea7d74 rds: tcp: Set linger when rejecting an incoming conn in rds_tcp_accept_one ... Each time we get an incoming SYN to the RDS_TCP_PORT, the TCP layer accepts the connection and then the rds_tcp_accept_one() callback is invoked to process the incoming connection. rds_tcp_accept_one() may reject the incoming syn for a number of reasons, e.g., commit 1a0e100fb2 ("RDS: TCP: Force every connection to be initiated by numerically smaller IP address"), or because we are getting spammed by a malicious node that is triggering a flood of connection attempts to RDS_TCP_PORT. If the incoming syn is rejected, no data would have been sent on the TCP socket, and we do not need to be in TIME_WAIT state, so we set linger on the TCP socket before closing, thereby closing the socket efficiently with a RST. Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Tested-by: Imanti Mendez <imanti.mendez@oracle.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2017-06-16 12:45:15 -04:00
..
af_rds.c	RDS: validate the requested traces user input against max supported	2017-01-06 22:14:26 -05:00
bind.c	RDS: log the address on bind failure	2017-01-02 14:02:39 -08:00
cong.c	RDS: split out connection specific state from rds_connection to rds_conn_path	2016-06-14 23:50:41 -07:00
connection.c	rds: tcp: remove cp_outgoing	2017-06-16 12:45:14 -04:00
ib_cm.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-03-15 11:59:10 -07:00
ib_fmr.c	rds: ib: unmap the scatter/gather list when error	2017-03-13 23:20:05 -07:00
ib_frmr.c	RDS: IB: split the mr registration and invalidation path	2017-01-02 14:02:47 -08:00
ib_mr.h	rds: ib: add the static type to the function	2017-03-13 23:20:05 -07:00
ib_rdma.c	RDS: split out connection specific state from rds_connection to rds_conn_path	2016-06-14 23:50:41 -07:00
ib_recv.c	RDS: add receive message trace used by application	2017-01-02 14:02:59 -08:00
ib_ring.c	RDS/IW+IB: Set recv ring low water mark to 1/2 full.	2009-04-09 17:21:14 -07:00
ib_send.c	rds:Remove unnecessary ib_ring unalloc	2017-02-17 15:19:51 -05:00
ib_stats.c	RDS: IB: add few useful cache stasts	2017-01-02 14:02:51 -08:00
ib_sysctl.c	net: Convert uses of typedef ctl_table to struct ctl_table	2013-06-13 02:36:09 -07:00
ib.c	rds: remove unnecessary returned value check	2017-03-03 09:51:22 -08:00
ib.h	This is a tree wide change and has been kept separate for that reason.	2017-02-25 13:45:43 -08:00
info.c	rds: fix an integer overflow test in rds_info_getsockopt()	2015-08-03 15:20:16 -07:00
info.h	RDS: Info and stats	2009-02-26 23:39:25 -08:00
Kconfig	RDS: Drop stale iWARP RDMA transport	2016-03-02 14:13:17 -05:00
loop.c	RDS: TCP: Hooks to set up a single connection path	2016-07-01 16:45:17 -04:00
loop.h	RDS: loopback	2009-02-26 23:39:26 -08:00
Makefile	rds: debug messages are enabled by default	2016-10-29 15:55:57 -04:00
message.c	RDS: TCP: Track peer's connection generation number	2016-11-17 13:35:18 -05:00
page.c	rds: remove dead code	2016-12-26 21:35:39 -05:00
rdma_transport.c	RDS: RDMA: start rdma listening after init	2017-01-02 14:02:45 -08:00
rdma_transport.h	RDS: Drop stale iWARP RDMA transport	2016-03-02 14:13:17 -05:00
rdma.c	RDS: make message size limit compliant with spec	2017-01-02 14:02:57 -08:00
rds_single_path.h	RDS: split out connection specific state from rds_connection to rds_conn_path	2016-06-14 23:50:41 -07:00
rds.h	rds: tcp: various endian-ness fixes	2017-06-16 12:45:15 -04:00
recv.c	rds: tcp: various endian-ness fixes	2017-06-16 12:45:15 -04:00
send.c	rds: tcp: various endian-ness fixes	2017-06-16 12:45:15 -04:00
stats.c	net/rds: zero last byte for strncpy	2013-03-08 00:35:44 -05:00
sysctl.c	net: rds: fix coding style issues	2016-06-18 21:34:09 -07:00
tcp_connect.c	rds: tcp: various endian-ness fixes	2017-06-16 12:45:15 -04:00
tcp_listen.c	rds: tcp: Set linger when rejecting an incoming conn in rds_tcp_accept_one	2017-06-16 12:45:15 -04:00
tcp_recv.c	RDS: add receive message trace used by application	2017-01-02 14:02:59 -08:00
tcp_send.c	don't open-code kernel_setsockopt()	2017-04-06 02:09:23 -04:00
tcp_stats.c	net: rds: fix const array syntax	2011-07-01 16:16:19 -07:00
tcp.c	Merge branches 'uaccess.alpha', 'uaccess.arc', 'uaccess.arm', 'uaccess.arm64', 'uaccess.avr32', 'uaccess.bfin', 'uaccess.c6x', 'uaccess.cris', 'uaccess.frv', 'uaccess.h8300', 'uaccess.hexagon', 'uaccess.ia64', 'uaccess.m32r', 'uaccess.m68k', 'uaccess.metag', 'uaccess.microblaze', 'uaccess.mips', 'uaccess.mn10300', 'uaccess.nios2', 'uaccess.openrisc', 'uaccess.parisc', 'uaccess.powerpc', 'uaccess.s390', 'uaccess.score', 'uaccess.sh', 'uaccess.sparc', 'uaccess.tile', 'uaccess.um', 'uaccess.unicore32', 'uaccess.x86' and 'uaccess.xtensa' into work.uaccess	2017-04-26 12:06:59 -04:00
tcp.h	rds: tcp: Sequence teardown of listen and acceptor sockets to avoid races	2017-03-07 14:09:59 -08:00
threads.c	rds: tcp: various endian-ness fixes	2017-06-16 12:45:15 -04:00
transport.c	rds: remove unnecessary returned value check	2017-03-03 09:51:22 -08:00