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Timo Teräs fc24f2b209 ip_tunnel: fix ipv4 pmtu check to honor inner ip header df 
Frag needed should be sent only if the inner header asked
to not fragment. Currently fragmentation is broken if the
tunnel has df set, but df was not asked in the original
packet. The tunnel's df needs to be still checked to update
internally the pmtu cache.

Commit 23a3647bc4f93bac broke it, and this commit fixes
the ipv4 df check back to the way it was.

Fixes: 23a3647bc4f93bac ("ip_tunnels: Use skb-len to PMTU check.")
Cc: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-08 16:03:09 -07:00
..
netfilter
net: ipv4 sysctl option to ignore routes when nexthop link is down
2015-06-24 02:15:54 -07:00
af_inet.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-06-24 02:58:51 -07:00
ah4.c
ipsec: Remove obsolete MAX_AH_AUTH_LEN
2014-09-18 10:54:36 +02:00
arp.c
netfilter: Pass socket pointer down through okfn().
2015-04-07 15:25:55 -04:00
cipso_ipv4.c
ipv4: coding style: comparison for inequality with NULL
2015-04-03 12:11:15 -04:00
datagram.c
net: Save TX flow hash in sock and set in skbuf on xmit
2014-07-07 21:14:21 -07:00
devinet.c
net: ipv4 sysctl option to ignore routes when nexthop link is down
2015-06-24 02:15:54 -07:00
esp4.c
esp4: Switch to new AEAD interface
2015-05-28 11:23:20 +08:00
fib_frontend.c
net: ipv4 sysctl option to ignore routes when nexthop link is down
2015-06-24 02:15:54 -07:00
fib_lookup.h
ipv4: FIB Local/MAIN table collapse
2015-03-11 16:22:14 -04:00
fib_rules.c
net: ipv4 sysctl option to ignore routes when nexthop link is down
2015-06-24 02:15:54 -07:00
fib_semantics.c
ipv4: fix RCU lockdep warning from linkdown changes
2015-06-28 16:47:12 -07:00
fib_trie.c
net: ipv4 sysctl option to ignore routes when nexthop link is down
2015-06-24 02:15:54 -07:00
fou.c
fou: avoid missing unlock in failure path
2015-04-16 12:11:19 -04:00
geneve_core.c
geneve_core: identify as driver library in modules description
2015-05-13 15:59:13 -04:00
gre_demux.c
net: Fix GRE RX to use skb_transport_header for GRE header offset
2014-09-08 15:23:05 -07:00
gre_offload.c
ipv4: coding style: comparison for inequality with NULL
2015-04-03 12:11:15 -04:00
icmp.c
ipv4: coding style: comparison for equality with NULL
2015-04-03 12:11:15 -04:00
igmp.c
net: Export IGMP/MLD message validation code
2015-05-04 14:49:23 -04:00
inet_connection_sock.c
tcp: improve REUSEADDR/NOREUSEADDR cohabitation
2015-05-21 18:55:32 -04:00
inet_diag.c
net: inet_diag: export IPV6_V6ONLY sockopt
2015-06-24 02:51:39 -07:00
inet_fragment.c
ipv4: coding style: comparison for equality with NULL
2015-04-03 12:11:15 -04:00
inet_hashtables.c
tcp: connect() from bound sockets can be faster
2015-05-27 14:30:10 -04:00
inet_lro.c
lro: remove dead code
2013-12-29 16:34:25 -05:00
inet_timewait_sock.c
tcp/dccp: tw_timer_handler() is static
2015-05-13 15:21:33 -04:00
inetpeer.c
inet: remove dead inetpeer sequence code
2014-09-08 16:42:42 -07:00
ip_forward.c
ip: reject too-big defragmented DF-skb when forwarding
2015-05-25 00:08:48 -04:00
ip_fragment.c
ip_fragment: don't forward defragmented DF packet
2015-05-27 13:03:31 -04:00
ip_gre.c
ipv4: coding style: comparison for equality with NULL
2015-04-03 12:11:15 -04:00
ip_input.c
netfilter: Pass socket pointer down through okfn().
2015-04-07 15:25:55 -04:00
ip_options.c
ipv4: coding style: comparison for inequality with NULL
2015-04-03 12:11:15 -04:00
ip_output.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2015-06-15 14:30:32 -07:00
ip_sockglue.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-06-24 02:58:51 -07:00
ip_tunnel_core.c
ip_tunnel: Report Rx dropped in ip_tunnel_get_stats64
2015-05-14 22:30:54 -04:00
ip_tunnel.c
ip_tunnel: fix ipv4 pmtu check to honor inner ip header df
2015-07-08 16:03:09 -07:00
ip_vti.c
ip_vti/ip6_vti: Preserve skb->mark after rcv_cb call
2015-05-28 06:23:32 +02:00
ipcomp.c
ipv4: coding style: comparison for equality with NULL
2015-04-03 12:11:15 -04:00
ipconfig.c
ipv4: coding style: comparison for equality with NULL
2015-04-03 12:11:15 -04:00
ipip.c
ipip: fix one sparse error
2015-05-17 13:08:29 -04:00
ipmr.c
netfilter: Pass socket pointer down through okfn().
2015-04-07 15:25:55 -04:00
Kconfig
tcp: add CDG congestion control
2015-06-11 00:09:12 -07:00
Makefile
tcp: add CDG congestion control
2015-06-11 00:09:12 -07:00
netfilter.c
netfilter: don't use module_init/exit in core IPV4 code
2015-06-16 14:12:34 -04:00
ping.c
ipv4: Missing sk_nulls_node_init() in ping_unhash().
2015-05-01 22:02:47 -04:00
proc.c
tcp: add TCPWinProbe and TCPKeepAlive SNMP counters
2015-05-09 16:42:32 -04:00
protocol.c
net: Export inet_offloads and inet6_offloads
2014-09-19 17:15:31 -04:00
raw.c
Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-04-13 18:18:05 -04:00
route.c
net: ipv4 sysctl option to ignore routes when nexthop link is down
2015-06-24 02:15:54 -07:00
syncookies.c
tcp: get_cookie_sock() consolidation
2015-06-07 15:19:52 -07:00
sysctl_net_ipv4.c
net: limit tcp/udp rmem/wmem to SOCK_{RCV,SND}BUF_MIN
2015-05-30 17:37:44 -07:00
tcp_bic.c
tcp: stretch ACK fixes prep
2015-01-28 22:18:37 -08:00
tcp_cdg.c
tcp: cdg: use div_u64()
2015-06-14 12:57:45 -07:00
tcp_cong.c
tcp: fix child sockets to use system default congestion control if not set
2015-05-31 21:49:14 -07:00
tcp_cubic.c
tcp: restore 1.5x per RTT limit to CUBIC cwnd growth in congestion avoidance
2015-03-11 16:51:51 -04:00
tcp_dctcp.c
net: tcp: dctcp_update_alpha() fixes.
2015-06-10 23:28:33 -07:00
tcp_diag.c
sock_diag: implement a get_info handler for inet
2015-06-15 19:49:22 -07:00
tcp_fastopen.c
tcp: Do not call tcp_fastopen_reset_cipher from interrupt context
2015-06-23 02:38:10 -07:00
tcp_highspeed.c
tcp: whitespace fixes
2014-09-01 18:12:45 -07:00
tcp_htcp.c
tcp: whitespace fixes
2014-09-01 18:12:45 -07:00
tcp_hybla.c
tcp: whitespace fixes
2014-09-01 18:12:45 -07:00
tcp_illinois.c
tcp: prepare CC get_info() access from getsockopt()
2015-04-29 17:10:38 -04:00
tcp_input.c
tcp: fill shinfo->gso_size at last moment
2015-06-11 16:33:11 -07:00
tcp_ipv4.c
tcp: remove redundant checks II
2015-06-07 01:55:01 -07:00
tcp_lp.c
tcp: remove in_flight parameter from cong_avoid() methods
2014-05-03 19:23:07 -04:00
tcp_memcontrol.c
memcg: cleanup static keys decrement
2015-02-12 18:54:10 -08:00
tcp_metrics.c
tcp: RFC7413 option support for Fast Open client
2015-04-07 18:36:39 -04:00
tcp_minisocks.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-06-01 22:51:30 -07:00
tcp_offload.c
tcp: reserve tcp_skb_mss() to tcp stack
2015-06-11 16:33:10 -07:00
tcp_output.c
tcp: remove obsolete check in tcp_set_skb_tso_segs()
2015-06-11 16:33:11 -07:00
tcp_probe.c
tcp: whitespace fixes
2014-09-01 18:12:45 -07:00
tcp_scalable.c
tcp: stretch ACK fixes prep
2015-01-28 22:18:37 -08:00
tcp_timer.c
tcp: introduce tcp_under_memory_pressure()
2015-05-17 22:45:48 -04:00
tcp_vegas.c
tcp: prepare CC get_info() access from getsockopt()
2015-04-29 17:10:38 -04:00
tcp_vegas.h
tcp: prepare CC get_info() access from getsockopt()
2015-04-29 17:10:38 -04:00
tcp_veno.c
tcp: stretch ACK fixes prep
2015-01-28 22:18:37 -08:00
tcp_westwood.c
tcp_westwood: fix tcp_westwood_info()
2015-05-05 19:50:09 -04:00
tcp_yeah.c
tcp: stretch ACK fixes prep
2015-01-28 22:18:37 -08:00
tcp.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-06-24 02:58:51 -07:00
tunnel4.c
…
udp_diag.c
sock_diag: specify info_size per inet protocol
2015-06-15 19:49:22 -07:00
udp_impl.h
net: Remove iocb argument from sendmsg and recvmsg
2015-03-02 13:06:31 -05:00
udp_offload.c
ipv4: coding style: comparison for inequality with NULL
2015-04-03 12:11:15 -04:00
udp_tunnel.c
net: Modify sk_alloc to not reference count the netns of kernel sockets.
2015-05-11 10:50:18 -04:00
udp.c
ipv4/udp: Verify multicast group is ours in upd_v4_early_demux()
2015-06-04 00:46:26 -07:00
udplite.c
net: Eliminate no_check from protosw
2014-05-23 16:28:53 -04:00
xfrm4_input.c
netfilter: Pass socket pointer down through okfn().
2015-04-07 15:25:55 -04:00
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
netfilter: Pass socket pointer down through okfn().
2015-04-07 15:25:55 -04:00
xfrm4_policy.c
ipv4: coding style: comparison for equality with NULL
2015-04-03 12:11:15 -04:00
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
…