linux-stable.git/include/linux/sysctl.h, branch linux-2.6.17.y Linux kernel stable tree [TCP]: sysctl to allow TCP window > 32767 sans wscale 2006-03-21T06:40:29+00:00 Rick Jones rick.jones2@hp.com 2006-03-21T06:40:29+00:00 15d99e02babae8bc20b836917ace07d93e318149 Back in the dark ages, we had to be conservative and only allow 15-bit window fields if the window scale option was not negotiated. Some ancient stacks used a signed 16-bit quantity for the window field of the TCP header and would get confused. Those days are long gone, so we can use the full 16-bits by default now. There is a sysctl added so that we can still interact with such old stacks Signed-off-by: Rick Jones <rick.jones2@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Back in the dark ages, we had to be conservative and only allow 15-bit
window fields if the window scale option was not negotiated.  Some
ancient stacks used a signed 16-bit quantity for the window field of
the TCP header and would get confused.

Those days are long gone, so we can use the full 16-bits by default
now.

There is a sysctl added so that we can still interact with such old
stacks

Signed-off-by: Rick Jones <rick.jones2@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[IPV4] ARP: Alloc acceptance of unsolicited ARP via netdevice sysctl. 2006-03-21T06:39:47+00:00 Neil Horman nhorman@tuxdriver.com 2006-03-21T06:39:47+00:00 abd596a4b68b6526c2676233e10602dd9660e9d7 Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[DCCP] feat: Introduce sysctls for the default features 2006-03-21T03:25:02+00:00 Arnaldo Carvalho de Melo acme@mandriva.com 2006-03-21T03:25:02+00:00 e55d912f5b75723159348a7fc7692f869a86636a [root@qemu ~]# for a in /proc/sys/net/dccp/default/* ; do echo $a ; cat $a ; done /proc/sys/net/dccp/default/ack_ratio 2 /proc/sys/net/dccp/default/rx_ccid 3 /proc/sys/net/dccp/default/send_ackvec 1 /proc/sys/net/dccp/default/send_ndp 1 /proc/sys/net/dccp/default/seq_window 100 /proc/sys/net/dccp/default/tx_ccid 3 [root@qemu ~]# So if wanting to test ccid3 as the tx CCID one can just do: [root@qemu ~]# echo 3 > /proc/sys/net/dccp/default/tx_ccid [root@qemu ~]# echo 2 > /proc/sys/net/dccp/default/rx_ccid [root@qemu ~]# cat /proc/sys/net/dccp/default/[tr]x_ccid 2 3 [root@qemu ~]# Of course we also need the setsockopt for each app to tell its preferences, but for testing or defining something other than CCID2 as the default for apps that don't explicitely set their preference the sysctl interface is handy. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
[root@qemu ~]# for a in /proc/sys/net/dccp/default/* ; do echo $a ; cat $a ; done
/proc/sys/net/dccp/default/ack_ratio
2
/proc/sys/net/dccp/default/rx_ccid
3
/proc/sys/net/dccp/default/send_ackvec
1
/proc/sys/net/dccp/default/send_ndp
1
/proc/sys/net/dccp/default/seq_window
100
/proc/sys/net/dccp/default/tx_ccid
3
[root@qemu ~]#

So if wanting to test ccid3 as the tx CCID one can just do:

[root@qemu ~]# echo 3 > /proc/sys/net/dccp/default/tx_ccid
[root@qemu ~]# echo 2 > /proc/sys/net/dccp/default/rx_ccid
[root@qemu ~]# cat /proc/sys/net/dccp/default/[tr]x_ccid
2
3
[root@qemu ~]#

Of course we also need the setsockopt for each app to tell its preferences, but
for testing or defining something other than CCID2 as the default for apps that
don't explicitely set their preference the sysctl interface is handy.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[IPSEC]: Sync series - core changes 2006-03-21T03:15:11+00:00 Jamal Hadi Salim hadi@cyberus.ca 2006-03-21T03:15:11+00:00 f8cd54884e675dfaf0c86cc7c088adb6ca9d7638 This patch provides the core functionality needed for sync events for ipsec. Derived work of Krisztian KOVACS <hidden@balabit.hu> Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net> 
This patch provides the core functionality needed for sync events
for ipsec. Derived work of Krisztian KOVACS <hidden@balabit.hu>

Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
[TCP]: MTU probing 2006-03-21T01:53:41+00:00 John Heffner jheffner@psc.edu 2006-03-21T01:53:41+00:00 5d424d5a674f782d0659a3b66d951f412901faee Implementation of packetization layer path mtu discovery for TCP, based on the internet-draft currently found at <http://www.ietf.org/internet-drafts/draft-ietf-pmtud-method-05.txt>. Signed-off-by: John Heffner <jheffner@psc.edu> Signed-off-by: David S. Miller <davem@davemloft.net> 
Implementation of packetization layer path mtu discovery for TCP, based on
the internet-draft currently found at
<http://www.ietf.org/internet-drafts/draft-ietf-pmtud-method-05.txt>.

Signed-off-by: John Heffner <jheffner@psc.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
[IPV6]: ROUTE: Add accept_ra_rt_info_max_plen sysctl. 2006-03-21T01:07:03+00:00 YOSHIFUJI Hideaki yoshfuji@linux-ipv6.org 2006-03-21T01:07:03+00:00 09c884d4c3b45cda904c2291d4723074ff523611 Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net> 
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
[IPV6]: ROUTE: Add router_probe_interval sysctl. 2006-03-21T01:05:47+00:00 YOSHIFUJI Hideaki yoshfuji@linux-ipv6.org 2006-03-21T01:05:47+00:00 52e1635631b342803aecaf81a362c1464e3da2e5 Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net> 
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
[IPV6]: ROUTE: Add accept_ra_rtr_pref sysctl. 2006-03-21T01:05:30+00:00 YOSHIFUJI Hideaki yoshfuji@linux-ipv6.org 2006-03-21T01:05:30+00:00 930d6ff2e2a5f1538448d3b0b2652a8f0c0f6cba Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net> 
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
[IPV6]: ADDRCONF: Add accept_ra_pinfo sysctl. 2006-03-21T00:55:26+00:00 YOSHIFUJI Hideaki yoshfuji@linux-ipv6.org 2006-03-21T00:55:26+00:00 c4fd30eb18666972230689eb30e8f90844bce635 This controls whether we accept Prefix Information in RAs. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net> 
This controls whether we accept Prefix Information in RAs.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
[IPV6]: ROUTE: Add accept_ra_defrtr sysctl. 2006-03-21T00:55:08+00:00 YOSHIFUJI Hideaki yoshfuji@linux-ipv6.org 2006-03-21T00:55:08+00:00 65f5c7c1143fb8eed5bc7e7d8c926346e00fe3c0 This controls whether we accept default router information in RAs. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net> 
This controls whether we accept default router information
in RAs.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>