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linux/net/ipv4
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Lorenzo Bianconi feaf5c796b net: ip_gre: always reports o_key to userspace 
Erspan protocol (version 1 and 2) relies on o_key to configure
session id header field. However TUNNEL_KEY bit is cleared in
erspan_xmit since ERSPAN protocol does not set the key field
of the external GRE header and so the configured o_key is not reported
to userspace. The issue can be triggered with the following reproducer:

$ip link add erspan1 type erspan local 192.168.0.1 remote 192.168.0.2 \
    key 1 seq erspan_ver 1
$ip link set erspan1 up
$ip -d link sh erspan1

erspan1@NONE: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc pfifo_fast state UNKNOWN mode DEFAULT
  link/ether 52:aa:99:95:9a:b5 brd ff:ff:ff:ff:ff:ff promiscuity 0 minmtu 68 maxmtu 1500
  erspan remote 192.168.0.2 local 192.168.0.1 ttl inherit ikey 0.0.0.1 iseq oseq erspan_index 0

Fix the issue adding TUNNEL_KEY bit to the o_flags parameter in
ipgre_fill_info

Fixes: 84e54fe0a5ea ("gre: introduce native tunnel support for ERSPAN")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-30 14:00:02 -08:00
..
bpfilter
net: bpfilter: disallow to remove bpfilter module while being used
2019-01-11 18:05:41 -08:00
netfilter
netfilter: ipt_CLUSTERIP: fix warning unused variable cn
2019-01-28 11:09:12 +01:00
af_inet.c
net: use indirect call wrappers at GRO transport layer
2018-12-15 13:23:02 -08:00
ah4.c
net-ipv4: remove 2 always zero parameters from ipv4_redirect()
2018-09-26 20:30:55 -07:00
arp.c
net: Evict neighbor entries on carrier down
2018-10-12 09:47:39 -07:00
cipso_ipv4.c
net/ipv4: defensive cipso option parsing
2018-09-17 19:37:46 -07:00
datagram.c
ipv4: Allow sending multicast packets on specific i/f using VRF socket
2018-10-02 22:28:17 -07:00
devinet.c
netlink: fixup regression in RTM_GETADDR
2019-01-04 12:47:06 -08:00
esp4_offload.c
net: use skb_sec_path helper in more places
2018-12-19 11:21:37 -08:00
esp4.c
net: use skb_sec_path helper in more places
2018-12-19 11:21:37 -08:00
fib_frontend.c
net: ipv4: Fix memory leak in network namespace dismantle
2019-01-15 13:33:44 -08:00
fib_lookup.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
fib_notifier.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
fib_rules.c
ipv4: fib_rules: Fix possible infinite loop in fib_empty_table
2018-12-30 12:57:04 -08:00
fib_semantics.c
net: Add extack argument to ip_fib_metrics_init
2018-11-06 15:00:45 -08:00
fib_trie.c
net: ipv4: Fix memory leak in network namespace dismantle
2019-01-15 13:33:44 -08:00
fou.c
fou, fou6: do not assume linear skbs
2019-01-15 22:01:31 -08:00
gre_demux.c
net: ip_gre: use erspan key field for tunnel lookup
2019-01-22 11:52:17 -08:00
gre_offload.c
Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net
2018-07-03 10:29:26 +09:00
icmp.c
net: Convert protocol error handlers from void to int
2018-11-08 17:13:08 -08:00
igmp.c
ipv4/igmp: fix v1/v2 switchback timeout based on rfc3376, 8.12
2018-10-29 20:26:06 -07:00
inet_connection_sock.c
inet: minor optimization for backlog setting in listen(2)
2018-11-07 22:31:07 -08:00
inet_diag.c
tcp: fix a race in inet_diag_dump_icsk()
2018-12-20 19:23:22 -08:00
inet_fragment.c
inet: frags: better deal with smp races
2018-11-08 18:40:30 -08:00
inet_hashtables.c
net: dccp: fix kernel crash on module load
2018-12-24 15:27:56 -08:00
inet_timewait_sock.c
soreuseport: initialise timewait reuseport field
2018-04-07 22:32:32 -04:00
inetpeer.c
inetpeer: fix uninit-value in inet_getpeer
2018-04-09 10:57:35 -04:00
ip_forward.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-12-20 11:53:36 -08:00
ip_fragment.c
net: ipv4: do not handle duplicate fragments as overlapping
2018-12-15 11:50:40 -08:00
ip_gre.c
net: ip_gre: always reports o_key to userspace
2019-01-30 14:00:02 -08:00
ip_input.c
net: Fix usage of pskb_trim_rcsum
2019-01-18 14:05:14 -08:00
ip_options.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ip_output.c
sk_buff: add skb extension infrastructure
2018-12-19 11:21:37 -08:00
ip_sockglue.c
ip: on queued skb use skb_header_pointer instead of pskb_may_pull
2019-01-10 09:27:20 -05:00
ip_tunnel_core.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-12-24 16:19:56 -08:00
ip_tunnel.c
ip_tunnel: Make none-tunnel-dst tunnel port work with lwtunnel
2019-01-24 17:54:12 -08:00
ip_vti.c
vti4: Fix a ipip packet processing bug in 'IPCOMP' virtual tunnel
2019-01-09 14:00:37 +01:00
ipcomp.c
net-ipv4: remove 2 always zero parameters from ipv4_redirect()
2018-09-26 20:30:55 -07:00
ipconfig.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-12-20 11:53:36 -08:00
ipip.c
net: Convert protocol error handlers from void to int
2018-11-08 17:13:08 -08:00
ipmr_base.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-10-19 11:03:06 -07:00
ipmr.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-12-20 11:53:36 -08:00
Kconfig
net: remove blank lines at end of file
2018-07-24 14:10:43 -07:00
Makefile
bpf, sockmap: convert to generic sk_msg interface
2018-10-15 12:23:19 -07:00
metrics.c
net: Add extack argument to ip_fib_metrics_init
2018-11-06 15:00:45 -08:00
netfilter.c
netfilter: utils: move nf_ip_checksum* from ipv4 to utils
2018-07-16 17:51:48 +02:00
netlink.c
ipv4: support sport, dport and ip_proto in RTM_GETROUTE
2018-05-23 15:14:12 -04:00
ping.c
ipv4: Allow sending multicast packets on specific i/f using VRF socket
2018-10-02 22:28:17 -07:00
proc.c
tcp: implement coalescing on backlog queue
2018-11-30 13:26:54 -08:00
protocol.c
fou, fou6: ICMP error handlers for FoU and GUE
2018-11-08 17:13:08 -08:00
raw_diag.c
net: ipv6: add second dif to raw socket lookups
2017-08-07 11:39:22 -07:00
raw.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-12-20 11:53:36 -08:00
route.c
net: ipv4: Set skb->dev for output route resolution
2018-12-20 16:42:39 -08:00
syncookies.c
tcp: provide earliest departure time in skb->tstamp
2018-09-21 19:37:59 -07:00
sysctl_net_ipv4.c
net: provide a sysctl raw_l3mdev_accept for raw socket lookup with VRFs
2018-11-07 16:12:38 -08:00
tcp_bbr.c
tcp_bbr: update comments to reflect pacing_margin_percent
2018-11-08 20:46:17 -08:00
tcp_bic.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_bpf.c
bpf: sk_msg, sock{map|hash} redirect through ULP
2018-12-20 23:47:09 +01:00
tcp_cdg.c
tcp: cdg: use tcp high resolution clock cache
2018-10-15 22:56:42 -07:00
tcp_cong.c
tcp: Namespace-ify sysctl_tcp_default_congestion_control
2017-11-15 14:09:52 +09:00
tcp_cubic.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_dctcp.c
tcp: refactor DCTCP ECN ACK handling
2018-10-10 22:26:00 -07:00
tcp_dctcp.h
tcp: refactor DCTCP ECN ACK handling
2018-10-10 22:26:00 -07:00
tcp_diag.c
net: sock: replace sk_state_load with inet_sk_state_load and remove sk_state_store
2017-12-20 14:00:25 -05:00
tcp_fastopen.c
tcp: pause Fast Open globally after third consecutive timeout
2017-12-13 15:51:12 -05:00
tcp_highspeed.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_htcp.c
…
tcp_hybla.c
…
tcp_illinois.c
net/tcp/illinois: replace broken algorithm reference link
2018-02-28 12:03:47 -05:00
tcp_input.c
tcp: take care of compressed acks in tcp_add_reno_sack()
2018-11-30 13:26:53 -08:00
tcp_ipv4.c
tcp: md5: add tcp_md5_needed jump label
2018-11-30 13:28:03 -08:00
tcp_lp.c
…
tcp_metrics.c
mm: convert totalram_pages and totalhigh_pages variables to atomic
2018-12-28 12:11:47 -08:00
tcp_minisocks.c
tcp: do not restart timewait timer on rst reception
2018-08-31 23:10:35 -07:00
tcp_nv.c
tcp_nv: fix potential integer overflow in tcpnv_acked
2018-01-31 10:26:30 -05:00
tcp_offload.c
net: use indirect call wrappers at GRO transport layer
2018-12-15 13:23:02 -08:00
tcp_output.c
tcp: handle EOR and FIN conditions the same in tcp_tso_should_defer()
2018-12-10 12:09:15 -08:00
tcp_rate.c
tcp: introduce tcp_skb_timestamp_us() helper
2018-09-21 19:37:59 -07:00
tcp_recovery.c
tcp: introduce tcp_skb_timestamp_us() helper
2018-09-21 19:37:59 -07:00
tcp_scalable.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_timer.c
tcp: change txhash on SYN-data timeout
2019-01-10 16:55:41 -05:00
tcp_ulp.c
tcp, ulp: remove socket lock assertion on ULP cleanup
2018-10-16 12:38:41 -07:00
tcp_vegas.c
tcp: fix under-evaluated ssthresh in TCP Vegas
2017-09-29 06:07:00 +01:00
tcp_vegas.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
tcp_veno.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_westwood.c
tcp: Revert "tcp: remove CA_ACK_SLOWPATH"
2017-08-30 11:20:08 -07:00
tcp_yeah.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp.c
tcp: allow MSG_ZEROCOPY transmission also in CLOSE_WAIT state
2019-01-15 21:43:18 -08:00
tunnel4.c
net: Convert protocol error handlers from void to int
2018-11-08 17:13:08 -08:00
udp_diag.c
net: diag: document swapped src/dst in udp_dump_one.
2018-10-28 19:27:21 -07:00
udp_impl.h
udp: add missing rehash callback to udplite
2019-01-17 15:01:08 -08:00
udp_offload.c
udp: use indirect call wrappers for GRO socket lookup
2018-12-15 13:23:02 -08:00
udp_tunnel.c
udp_tunnel: add config option to bind to a device
2018-12-03 14:15:26 -08:00
udp.c
udp: add missing rehash callback to udplite
2019-01-17 15:01:08 -08:00
udplite.c
udp: add missing rehash callback to udplite
2019-01-17 15:01:08 -08:00
xfrm4_input.c
xfrm: reset transport header back to network header after all input transforms ahave been applied
2018-09-04 10:26:30 +02:00
xfrm4_mode_beet.c
…
xfrm4_mode_transport.c
xfrm: reset transport header back to network header after all input transforms ahave been applied
2018-09-04 10:26:30 +02:00
xfrm4_mode_tunnel.c
xfrm: Verify MAC header exists before overwriting eth_hdr(skb)->h_proto
2018-03-07 10:54:29 +01:00
xfrm4_output.c
net: xfrm: use skb_gso_validate_network_len() to check gso sizes
2018-03-04 17:49:17 -05:00
xfrm4_policy.c
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
xfrm4_protocol.c
net: Convert protocol error handlers from void to int
2018-11-08 17:13:08 -08:00
xfrm4_state.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
xfrm4_tunnel.c
…