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linux-stable/net/ipv6
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Jiri Benc 4c507d2897 net: implement IP_RECVTOS for IP_PKTOPTIONS 
Currently, it is not easily possible to get TOS/DSCP value of packets from
an incoming TCP stream. The mechanism is there, IP_PKTOPTIONS getsockopt
with IP_RECVTOS set, the same way as incoming TTL can be queried. This is
not actually implemented for TOS, though.

This patch adds this functionality, both for IPv4 (IP_PKTOPTIONS) and IPv6
(IPV6_2292PKTOPTIONS). For IPv4, like in the IP_RECVTTL case, the value of
the TOS field is stored from the other party's ACK.

This is needed for proxies which require DSCP transparency. One such example
is at http://zph.bratcheda.org/.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-13 00:46:41 -05:00
..
netfilter Merge branch 'for-linus' of git://selinuxproject.org/~jmorris/linux-security 2012-01-14 18:36:33 -08:00
addrconf.c net: race condition in ipv6 forwarding and disable_ipv6 parameters 2012-01-18 16:38:34 -05:00
addrconf_core.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
addrlabel.c rtnetlink: Compute and store minimum ifinfo dump size 2011-06-09 20:38:07 -07:00
af_inet6.c net: implement IP_RECVTOS for IP_PKTOPTIONS 2012-02-13 00:46:41 -05:00
ah6.c net: remove ipv6_addr_copy() 2011-11-22 16:43:32 -05:00
anycast.c ipv6: Remove never used function inet6_ac_check(). 2012-02-01 16:14:17 -05:00
datagram.c ipv6: helper function to get tclass 2012-02-13 00:45:38 -05:00
esp6.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2011-05-05 14:59:02 -07:00
exthdrs.c net: remove ipv6_addr_copy() 2011-11-22 16:43:32 -05:00
exthdrs_core.c ipv6: Add fragment reporting to ipv6_skip_exthdr(). 2011-12-03 09:35:10 -08:00
fib6_rules.c net: remove ipv6_addr_copy() 2011-11-22 16:43:32 -05:00
icmp.c ipv6: Implement IPV6_UNICAST_IF socket option. 2012-02-08 15:52:45 -05:00
inet6_connection_sock.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2011-11-26 14:47:03 -05:00
inet6_hashtables.c net: Compute protocol sequence numbers and fragment IDs using MD5. 2011-08-06 18:33:19 -07:00
ip6_fib.c ipv6: fib: Convert fib6_age() to dst_neigh_lookup(). 2012-01-27 21:00:08 -05:00
ip6_flowlabel.c net: remove ipv6_addr_copy() 2011-11-22 16:43:32 -05:00
ip6_input.c ipv6: Add fragment reporting to ipv6_skip_exthdr(). 2011-12-03 09:35:10 -08:00
ip6_output.c ipv6: Eliminate dst_get_neighbour_noref() usage in ip6_forward(). 2012-01-27 21:00:08 -05:00
ip6_tunnel.c net: reintroduce missing rcu_assign_pointer() calls 2012-01-12 12:26:56 -08:00
ip6mr.c net: remove ipv6_addr_copy() 2011-11-22 16:43:32 -05:00
ipcomp6.c inet: constify ip headers and in6_addr 2011-04-22 11:04:14 -07:00
ipv6_sockglue.c net: implement IP_RECVTOS for IP_PKTOPTIONS 2012-02-13 00:46:41 -05:00
Kconfig
Makefile
mcast.c ipv6: Kill rt6i_dev and rt6i_expires defines. 2011-12-28 20:19:20 -05:00
mip6.c net: remove ipv6_addr_copy() 2011-11-22 16:43:32 -05:00
ndisc.c ipv6: Remove neigh argument from ndisc_send_redirect() 2012-01-27 21:00:08 -05:00
netfilter.c Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
proc.c ipv6: fix per device IP snmp counters 2012-01-17 23:56:18 -05:00
protocol.c net: add __rcu annotations to protocol 2010-10-27 11:37:31 -07:00
raw.c ipv6: Implement IPV6_UNICAST_IF socket option. 2012-02-08 15:52:45 -05:00
reassembly.c ipv6: fix RFC5722 comment 2012-01-30 12:58:51 -05:00
route.c ipv6: Use ipv6_addr_any() 2012-01-26 16:29:16 -05:00
sit.c ipv6: sit: Convert to dst_neigh_lookup() 2012-01-26 15:23:21 -05:00
syncookies.c net: remove ipv6_addr_copy() 2011-11-22 16:43:32 -05:00
sysctl_net_ipv6.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
tcp_ipv6.c net: implement IP_RECVTOS for IP_PKTOPTIONS 2012-02-13 00:46:41 -05:00
tunnel6.c tunnels: add _rcu annotations 2010-10-25 13:09:45 -07:00
udp.c ipv6: Implement IPV6_UNICAST_IF socket option. 2012-02-08 15:52:45 -05:00
udp_impl.h
udplite.c Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
xfrm6_input.c
xfrm6_mode_beet.c net: remove ipv6_addr_copy() 2011-11-22 16:43:32 -05:00
xfrm6_mode_ro.c
xfrm6_mode_transport.c
xfrm6_mode_tunnel.c net: remove ipv6_addr_copy() 2011-11-22 16:43:32 -05:00
xfrm6_output.c xfrm6: remove unneeded NULL check in __xfrm6_output() 2012-02-01 02:52:48 -05:00
xfrm6_policy.c net: remove ipv6_addr_copy() 2011-11-22 16:43:32 -05:00
xfrm6_state.c net: remove ipv6_addr_copy() 2011-11-22 16:43:32 -05:00
xfrm6_tunnel.c ipv6: Fix return of xfrm6_tunnel_rcv() 2011-05-24 01:11:51 -04:00