kernel_optimize_test/net/ipv4
Joel Sing 9fc3bbb4a7 ipv4/route.c: respect prefsrc for local routes
The preferred source address is currently ignored for local routes,
which results in all local connections having a src address that is the
same as the local dst address. Fix this by respecting the preferred source
address when it is provided for local routes.

This bug can be demonstrated as follows:

 # ifconfig dummy0 192.168.0.1
 # ip route show table local | grep local.*dummy0
 local 192.168.0.1 dev dummy0  proto kernel  scope host  src 192.168.0.1
 # ip route change table local local 192.168.0.1 dev dummy0 \
     proto kernel scope host src 127.0.0.1
 # ip route show table local | grep local.*dummy0
 local 192.168.0.1 dev dummy0  proto kernel  scope host  src 127.0.0.1

We now establish a local connection and verify the source IP
address selection:

 # nc -l 192.168.0.1 3128 &
 # nc 192.168.0.1 3128 &
 # netstat -ant | grep 192.168.0.1:3128.*EST
 tcp        0      0 192.168.0.1:3128        192.168.0.1:33228 ESTABLISHED
 tcp        0      0 192.168.0.1:33228       192.168.0.1:3128  ESTABLISHED

Signed-off-by: Joel Sing <jsing@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-04 11:35:12 -08:00
..
netfilter ipv4: netfilter: ip_tables: fix information leak to userland 2010-11-03 08:45:06 +01:00
af_inet.c net: build_ehash_secret() and rt_bind_peer() cleanups 2010-08-20 00:50:16 -07:00
ah4.c
arp.c neigh: Protect neigh->ha[] with a seqlock 2010-10-11 12:54:04 -07:00
cipso_ipv4.c Update broken web addresses in the kernel. 2010-10-18 11:03:14 +02:00
datagram.c net: return operator cleanup 2010-09-23 14:33:39 -07:00
devinet.c inet: RCU changes in inetdev_by_index() 2010-10-19 03:50:48 -07:00
esp4.c
fib_frontend.c Revert "ipv4: Allow configuring subnets as local addresses" 2010-12-23 12:03:57 -08:00
fib_hash.c fib: Fix fib zone and its hash leak on namespace stop 2010-10-28 10:27:03 -07:00
fib_lookup.h fib: fib_result_assign() should not change fib refcounts 2010-11-04 12:05:32 -07:00
fib_rules.c fib: RCU conversion of fib_lookup() 2010-10-05 20:39:38 -07:00
fib_semantics.c fib: introduce fib_alias_accessed() helper 2010-10-21 03:09:41 -07:00
fib_trie.c net: allow GFP_HIGHMEM in __vmalloc() 2010-11-21 10:04:04 -08:00
gre.c tunnels: add _rcu annotations 2010-10-25 13:09:45 -07:00
icmp.c xfrm: update flowi saddr in icmp_send if unset 2010-11-16 11:43:39 -08:00
igmp.c inet: fix ip_mc_drop_socket() 2010-11-09 08:26:42 -08:00
inet_connection_sock.c
inet_diag.c inet_diag: Make sure we actually run the same bytecode we audited. 2010-11-04 12:26:34 -07:00
inet_fragment.c
inet_hashtables.c inet: Fix __inet_inherit_port() to correctly increment bsockets and num_owners 2010-11-28 18:18:44 -08:00
inet_lro.c
inet_timewait_sock.c
inetpeer.c inetpeer: __rcu annotations 2010-10-27 11:37:33 -07:00
ip_forward.c
ip_fragment.c net: return operator cleanup 2010-09-23 14:33:39 -07:00
ip_gre.c ip_gre: fix fallback tunnel setup 2010-10-30 16:21:28 -07:00
ip_input.c
ip_options.c bridge : Sanitize skb before it enters the IP stack 2010-09-19 12:42:34 -07:00
ip_output.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-09-27 01:03:03 -07:00
ip_sockglue.c ipv4: add __rcu annotations to ip_ra_chain 2010-10-25 14:18:28 -07:00
ipcomp.c
ipconfig.c
ipip.c tunnels: Fix tunnels change rcu protection 2010-10-27 14:20:08 -07:00
ipmr.c ipmr: cleanups 2010-10-03 21:50:53 -07:00
Kconfig Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-10-24 13:41:39 -07:00
Makefile PPTP: PPP over IPv4 (Point-to-Point Tunneling Protocol) 2010-08-21 23:05:39 -07:00
netfilter.c
proc.c tcp: Replace time wait bucket msg by counter 2010-12-08 12:16:33 -08:00
protocol.c net: add __rcu annotations to protocol 2010-10-27 11:37:31 -07:00
raw.c net: simplify flags for tx timestamping 2010-08-19 00:08:30 -07:00
route.c ipv4/route.c: respect prefsrc for local routes 2011-01-04 11:35:12 -08:00
syncookies.c
sysctl_net_ipv4.c tcp: restrict net.ipv4.tcp_adv_win_scale (#20312) 2010-11-28 10:39:45 -08:00
tcp_bic.c
tcp_cong.c net/ipv4: Eliminate kstrdup memory leak 2010-08-27 19:31:56 -07:00
tcp_cubic.c
tcp_diag.c
tcp_highspeed.c
tcp_htcp.c
tcp_hybla.c
tcp_illinois.c Update broken web addresses in the kernel. 2010-10-18 11:03:14 +02:00
tcp_input.c net: avoid limits overflow 2010-11-10 12:12:00 -08:00
tcp_ipv4.c tcp: fix listening_get_next() 2010-12-23 09:32:46 -08:00
tcp_lp.c
tcp_minisocks.c tcp: Replace time wait bucket msg by counter 2010-12-08 12:16:33 -08:00
tcp_output.c tcp: protect sysctl_tcp_cookie_size reads 2010-12-08 12:34:09 -08:00
tcp_probe.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
tcp_scalable.c
tcp_timer.c tcp: use correct counters in CA_CWR state too 2010-10-17 13:46:33 -07:00
tcp_vegas.c
tcp_vegas.h
tcp_veno.c Update broken web addresses in the kernel. 2010-10-18 11:03:14 +02:00
tcp_westwood.c net: return operator cleanup 2010-09-23 14:33:39 -07:00
tcp_yeah.c
tcp.c tcp: Make TCP_MAXSEG minimum more correct. 2010-11-24 11:47:22 -08:00
tunnel4.c tunnels: add __rcu annotations 2010-10-27 11:37:32 -07:00
udp_impl.h
udp.c net: fix nulls list corruptions in sk_prot_alloc 2010-12-16 14:26:56 -08:00
udplite.c net: fix nulls list corruptions in sk_prot_alloc 2010-12-16 14:26:56 -08:00
xfrm4_input.c
xfrm4_mode_beet.c
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c
xfrm4_output.c
xfrm4_policy.c net dst: use a percpu_counter to track entries 2010-10-11 13:06:53 -07:00
xfrm4_state.c xfrm: Allow different selector family in temporary state 2010-09-20 11:11:38 -07:00
xfrm4_tunnel.c net: struct xfrm_tunnel in read_mostly section 2010-08-30 13:50:45 -07:00