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linux-stable/net/ipv4
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Shmulik Ladkani fedbb6b4ff ipv4: Fix ip_skb_dst_mtu to use the sk passed by ip_finish_output 
ip_skb_dst_mtu uses skb->sk, assuming it is an AF_INET socket (e.g. it
calls ip_sk_use_pmtu which casts sk as an inet_sk).

However, in the case of UDP tunneling, the skb->sk is not necessarily an
inet socket (could be AF_PACKET socket, or AF_UNSPEC if arriving from
tun/tap).

OTOH, the sk passed as an argument throughout IP stack's output path is
the one which is of PMTU interest:
 - In case of local sockets, sk is same as skb->sk;
 - In case of a udp tunnel, sk is the tunneling socket.

Fix, by passing ip_finish_output's sk to ip_skb_dst_mtu.
This augments 7026b1ddb6 'netfilter: Pass socket pointer down through okfn().'

Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Reviewed-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-30 09:02:48 -04:00
..
netfilter
netfilter: conntrack: use a single expectation table for all namespaces
2016-05-06 11:50:01 +02:00
af_inet.c
ipv4: Fix non-initialized TTL when CONFIG_SYSCTL=n
2016-05-23 14:32:06 -07:00
ah4.c
ah4: Fix error return in ah_input().
2015-08-25 13:38:50 -07:00
arp.c
net: rename NET_{ADD|INC}_STATS_BH()
2016-04-27 22:48:24 -04:00
cipso_ipv4.c
net: introduce lockdep_is_held and update various places to use it
2016-04-07 16:44:14 -04:00
datagram.c
net: Set sk_txhash from a random number
2015-07-29 22:44:04 -07:00
devinet.c
ipv4: Don't do expensive useless work during inetdev destroy.
2016-03-13 23:28:35 -04:00
esp4.c
esp: Fix ESN generation under UDP encapsulation
2016-06-23 11:52:00 -04:00
fib_frontend.c
net: vrf: Create FIB tables on link create
2016-05-06 15:51:47 -04:00
fib_lookup.h
ipv4: consider TOS in fib_select_default
2015-07-24 22:46:11 -07:00
fib_rules.c
net: ipv6: use common fib_default_rule_pref
2015-09-09 14:19:50 -07:00
fib_semantics.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-05-15 13:32:48 -04:00
fib_trie.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-02-01 15:56:08 -08:00
fou.c
fou: Support IPv6 in fou
2016-05-20 18:03:16 -04:00
gre_demux.c
gre: fix error handler
2016-06-15 22:15:21 -07:00
gre_offload.c
gso: Remove arbitrary checks for unsupported GSO
2016-05-20 18:03:15 -04:00
icmp.c
net: icmp: rename ICMPMSGIN_INC_STATS_BH()
2016-04-27 22:48:23 -04:00
igmp.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-03-08 12:34:12 -05:00
inet_connection_sock.c
tcp: two more missing bh disable
2016-05-04 23:47:54 -04:00
inet_diag.c
sock_diag: align nlattr properly when needed
2016-04-26 12:00:48 -04:00
inet_fragment.c
inet: kill unused skb_free op
2016-01-05 22:25:57 -05:00
inet_hashtables.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-05-04 00:52:29 -04:00
inet_timewait_sock.c
tcp: must block bh in __inet_twsk_hashdance()
2016-05-04 16:55:11 -04:00
inetpeer.c
net: Add helper function to compare inetpeer addresses
2015-08-28 13:32:36 -07:00
ip_forward.c
net: rename IP_ADD_STATS_BH()
2016-04-27 22:48:24 -04:00
ip_fragment.c
net: rename IP_INC_STATS_BH()
2016-04-27 22:48:23 -04:00
ip_gre.c
gre: fix error handler
2016-06-15 22:15:21 -07:00
ip_input.c
net: original ingress device index in PKTINFO
2016-05-11 19:31:40 -04:00
ip_options.c
net: ipv4: Convert IP network timestamps to be y2038 safe
2016-03-01 17:18:44 -05:00
ip_output.c
ipv4: Fix ip_skb_dst_mtu to use the sk passed by ip_finish_output
2016-06-30 09:02:48 -04:00
ip_sockglue.c
sock: propagate __sock_cmsg_send() error
2016-05-16 13:46:23 -04:00
ip_tunnel_core.c
ip6_tun: Add infrastructure for doing encapsulation
2016-05-20 18:03:16 -04:00
ip_tunnel.c
net: Cleanup encap items in ip_tunnels.h
2016-05-20 18:03:16 -04:00
ip_vti.c
vti: Add pmtu handling to vti_xmit.
2016-03-31 08:59:56 +02:00
ipcomp.c
ipv4: coding style: comparison for equality with NULL
2015-04-03 12:11:15 -04:00
ipconfig.c
ipconfig: Protect ic_addrservaddr with IPCONFIG_DYNAMIC.
2016-06-11 20:40:24 -07:00
ipip.c
net: define gso types for IPx over IPv4 and IPv6
2016-05-20 18:03:15 -04:00
ipmr.c
ipmr/ip6mr: Initialize the last assert time of mfc entries.
2016-06-28 04:14:09 -04:00
Kconfig
ipv4: Remove inet_lro library
2016-02-17 16:15:46 -05:00
Makefile
ipv4: Remove inet_lro library
2016-02-17 16:15:46 -05:00
netfilter.c
ipv4: Pass struct net into ip_route_me_harder
2015-09-29 20:21:32 +02:00
ping.c
sock: enable timestamping using control messages
2016-04-04 15:50:30 -04:00
proc.c
ipv4: Namespaceify ip_default_ttl sysctl knob
2016-02-16 20:42:54 -05:00
protocol.c
net: Export inet_offloads and inet6_offloads
2014-09-19 17:15:31 -04:00
raw.c
sock: enable timestamping using control messages
2016-04-04 15:50:30 -04:00
route.c
net: l3mdev: Allow send on enslaved interface
2016-05-09 22:33:52 -04:00
syncookies.c
net: rename NET_{ADD|INC}_STATS_BH()
2016-04-27 22:48:24 -04:00
sysctl_net_ipv4.c
ipv4: Fix non-initialized TTL when CONFIG_SYSCTL=n
2016-05-23 14:32:06 -07:00
tcp_bic.c
tcp: replace cnt & rtt with struct in pkts_acked()
2016-05-11 14:43:19 -04:00
tcp_cdg.c
tcp: replace cnt & rtt with struct in pkts_acked()
2016-05-11 14:43:19 -04:00
tcp_cong.c
tcp: remove tcp_ecn_make_synack() socket argument
2015-09-25 13:00:38 -07:00
tcp_cubic.c
tcp: replace cnt & rtt with struct in pkts_acked()
2016-05-11 14:43:19 -04:00
tcp_dctcp.c
tcp: allow dctcp alpha to drop to zero
2015-10-23 02:46:52 -07:00
tcp_diag.c
net: diag: Support destroying TCP sockets.
2015-12-15 23:26:52 -05:00
tcp_fastopen.c
tcp: do not assume TCP code is non preemptible
2016-05-02 17:02:25 -04:00
tcp_highspeed.c
tcp: add tcp_in_slow_start helper
2015-07-09 14:22:52 -07:00
tcp_htcp.c
tcp: replace cnt & rtt with struct in pkts_acked()
2016-05-11 14:43:19 -04:00
tcp_hybla.c
tcp: do not slow start when cwnd equals ssthresh
2015-07-09 14:22:52 -07:00
tcp_illinois.c
tcp: replace cnt & rtt with struct in pkts_acked()
2016-05-11 14:43:19 -04:00
tcp_input.c
tcp: replace cnt & rtt with struct in pkts_acked()
2016-05-11 14:43:19 -04:00
tcp_ipv4.c
tcp: minor optimizations around tcp_hdr() usage
2016-05-16 13:46:23 -04:00
tcp_lp.c
tcp: replace cnt & rtt with struct in pkts_acked()
2016-05-11 14:43:19 -04:00
tcp_metrics.c
libnl: nla_put_msecs(): align on a 64-bit area
2016-04-23 20:13:24 -04:00
tcp_minisocks.c
tcp: do not assume TCP code is non preemptible
2016-05-02 17:02:25 -04:00
tcp_offload.c
gso: Remove arbitrary checks for unsupported GSO
2016-05-20 18:03:15 -04:00
tcp_output.c
tcp: do not send too big packets at retransmit time
2016-06-29 05:25:11 -04:00
tcp_probe.c
net: ipv4: tcp_probe: Replace timespec with timespec64
2016-03-01 17:18:44 -05:00
tcp_recovery.c
tcp: do not assume TCP code is non preemptible
2016-05-02 17:02:25 -04:00
tcp_scalable.c
tcp: add tcp_in_slow_start helper
2015-07-09 14:22:52 -07:00
tcp_timer.c
tcp: do not assume TCP code is non preemptible
2016-05-02 17:02:25 -04:00
tcp_vegas.c
tcp: replace cnt & rtt with struct in pkts_acked()
2016-05-11 14:43:19 -04:00
tcp_vegas.h
tcp: replace cnt & rtt with struct in pkts_acked()
2016-05-11 14:43:19 -04:00
tcp_veno.c
tcp: replace cnt & rtt with struct in pkts_acked()
2016-05-11 14:43:19 -04:00
tcp_westwood.c
tcp: replace cnt & rtt with struct in pkts_acked()
2016-05-11 14:43:19 -04:00
tcp_yeah.c
tcp: replace cnt & rtt with struct in pkts_acked()
2016-05-11 14:43:19 -04:00
tcp.c
tcp: guarantee forward progress in tcp_sendmsg()
2016-05-04 12:44:36 -04:00
tunnel4.c
net: Convert printks to pr_<level>
2012-03-11 23:42:51 -07:00
udp_diag.c
udp: no longer use SLAB_DESTROY_BY_RCU
2016-04-04 22:11:19 -04:00
udp_impl.h
net: Remove iocb argument from sendmsg and recvmsg
2015-03-02 13:06:31 -05:00
udp_offload.c
gso: Remove arbitrary checks for unsupported GSO
2016-05-20 18:03:15 -04:00
udp_tunnel.c
udp: Add socket based GRO and config
2016-04-07 16:53:29 -04:00
udp.c
udp reuseport: fix packet of same flow hashed to different socket
2016-06-14 17:23:09 -04:00
udplite.c
net: Eliminate no_check from protosw
2014-05-23 16:28:53 -04:00
xfrm4_input.c
netfilter: Pass net into okfn
2015-09-17 17:18:37 -07:00
xfrm4_mode_beet.c
ipv4: ERROR: code indent should use tabs where possible
2013-12-26 13:43:21 -05:00
xfrm4_mode_transport.c
…
xfrm4_mode_tunnel.c
ipv4: hash net ptr into fragmentation bucket selection
2015-03-25 14:07:04 -04:00
xfrm4_output.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-10-24 06:54:12 -07:00
xfrm4_policy.c
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
2015-12-22 16:26:31 -05:00
xfrm4_protocol.c
xfrm4: Remove duplicate semicolon
2014-06-30 07:49:47 +02:00
xfrm4_state.c
inet: make no_pmtu_disc per namespace and kill ipv4_config
2013-12-18 16:58:20 -05:00
xfrm4_tunnel.c
sit: add IPv4 over IPv4 support
2013-05-31 17:19:05 -07:00