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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
..
9p 9p: Reduce object size with CONFIG_NET_9P_DEBUG 2012-01-05 10:51:44 -06:00
bluetooth bluetooth: hci: Fix type of "enable_hs" to bool. 2012-01-22 15:08:46 -05:00
caif caif-hsi: Add RX flip buffer 2012-02-04 16:06:28 -05:00
irda
iucv af_iucv: allow retrieval of maximum message size 2012-02-08 18:50:19 -05:00
netfilter Merge branch 'nf-next' of git://1984.lsi.us.es/net-next 2011-12-25 02:21:45 -05:00
netns netns: Fail conspicously if someone uses net_generic at an inappropriate time. 2012-01-27 21:06:02 -05:00
nfc NFC: Add NCI multiple targets support 2012-01-24 14:32:29 -05:00
phonet
sctp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2011-12-23 17:13:56 -05:00
tc_act
act_api.h
addrconf.h ipv6: Remove never used function inet6_ac_check(). 2012-02-01 16:14:17 -05:00
af_ieee802154.h
af_rxrpc.h
af_unix.h af_unix: Move CINQ/COUTQ code to helpers 2011-12-30 16:45:45 -05:00
ah.h
arp.h ipv6: Use universal hash for NDISC. 2011-12-28 15:06:58 -05:00
atmclip.h atm: clip: Use device neigh support on top of "arp_tbl". 2011-11-30 18:51:03 -05:00
ax25.h
ax88796.h
cfg80211-wext.h
cfg80211.h nl80211: add support for mcs masks 2012-01-30 15:48:25 -05:00
checksum.h
cipso_ipv4.h
cls_cgroup.h
compat.h
datalink.h
dcbevent.h
dcbnl.h
dn.h
dn_dev.h
dn_fib.h
dn_neigh.h
dn_nsp.h
dn_route.h
dsa.h dsa: Include linux/if_ether.h to fix build error 2011-12-01 11:41:06 -05:00
dsfield.h
dst.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2011-12-23 17:13:56 -05:00
dst_ops.h net: Rename the dst_opt default_mtu method to mtu 2011-11-26 14:29:50 -05:00
esp.h
ethoc.h
fib_rules.h
flow.h ipv4: reset flowi parameters on route connect 2012-02-04 19:29:48 -05:00
flow_keys.h flow_dissector: use a 64bit load/store 2011-11-29 13:17:03 -05:00
garp.h
gen_stats.h
genetlink.h net: Deinline __nlmsg_put and genlmsg_put. -7k code on i386 defconfig. 2012-01-30 15:22:06 -05:00
gre.h
icmp.h
ieee80211_radiotap.h
ieee802154.h
ieee802154_netdev.h
if_inet6.h
inet6_connection_sock.h
inet6_hashtables.h net: use IS_ENABLED(CONFIG_IPV6) 2011-12-11 18:25:16 -05:00
inet_common.h
inet_connection_sock.h
inet_ecn.h
inet_frag.h
inet_hashtables.h
inet_sock.h net: implement IP_RECVTOS for IP_PKTOPTIONS 2012-02-13 00:46:41 -05:00
inet_timewait_sock.h inet: remove rcu protection on tw_net 2011-12-14 13:34:55 -05:00
inetpeer.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2011-12-02 13:49:21 -05:00
ip.h net: use IS_ENABLED(CONFIG_IPV6) 2011-12-11 18:25:16 -05:00
ip6_checksum.h
ip6_fib.h IPv6: Avoid taking write lock for /proc/net/ipv6_route 2011-12-30 17:07:33 -05:00
ip6_route.h Merge branch 'nf-next' of git://1984.lsi.us.es/net-next 2011-12-25 02:21:45 -05:00
ip6_tunnel.h
ip_fib.h
ip_vs.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-01-02 18:56:49 -05:00
ipcomp.h
ipconfig.h
ipip.h
ipv6.h ipv6: Add fragment reporting to ipv6_skip_exthdr(). 2011-12-03 09:35:10 -08:00
ipx.h
iw_handler.h
lapb.h
lib80211.h
llc.h
llc_c_ac.h
llc_c_ev.h
llc_c_st.h
llc_conn.h
llc_if.h
llc_pdu.h
llc_s_ac.h
llc_s_ev.h
llc_s_st.h
llc_sap.h
mac80211.h mac80211: add support for mcs masks 2012-01-30 15:48:26 -05:00
mip6.h
mld.h
ndisc.h ipv6: Remove neigh argument from ndisc_send_redirect() 2012-01-27 21:00:08 -05:00
neighbour.h ipv6: Use universal hash for NDISC. 2011-12-28 15:06:58 -05:00
net_namespace.h net: use IS_ENABLED(CONFIG_IPV6) 2011-12-11 18:25:16 -05:00
net_ratelimit.h
netdma.h
netevent.h
netlabel.h
netlink.h net: Deinline __nlmsg_put and genlmsg_put. -7k code on i386 defconfig. 2012-01-30 15:22:06 -05:00
netprio_cgroup.h netprio_cgroup: fix wrong memory access when NETPRIO_CGROUP=m 2012-02-10 15:08:57 -05:00
netrom.h
nexthop.h
nl802154.h
p8022.h
ping.h
pkt_cls.h
pkt_sched.h
protocol.h net: use IS_ENABLED(CONFIG_IPV6) 2011-12-11 18:25:16 -05:00
psnap.h
raw.h
rawv6.h
red.h net_sched: sfq: add optional RED on top of SFQ 2012-01-12 20:05:28 -08:00
regulatory.h cfg80211: pass DFS region to drivers through reg_notifier() 2011-11-21 16:20:41 -05:00
request_sock.h
rose.h
route.h ipv4: reset flowi parameters on route connect 2012-02-04 19:29:48 -05:00
rtnetlink.h
sch_generic.h net: Make qdisc_skb_cb upper size bound explicit. 2012-02-09 13:50:34 -05:00
scm.h
secure_seq.h
slhc_vj.h
snmp.h Merge branch 'for-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2012-01-09 13:08:28 -08:00
sock.h net: explicitly add jump_label.h header to sock.h 2012-01-26 17:13:26 -05:00
stp.h
tcp.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-02-04 16:39:32 -05:00
tcp_memcontrol.h tcp buffer limitation: per-cgroup limit 2011-12-12 19:04:11 -05:00
tcp_states.h
timewait_sock.h
transp_v6.h
udp.h net: use IS_ENABLED(CONFIG_IPV6) 2011-12-11 18:25:16 -05:00
udplite.h
wext.h
wimax.h
wpan-phy.h
x25.h
x25device.h
xfrm.h net: remove ipv6_addr_copy() 2011-11-22 16:43:32 -05:00