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linux-stable/net/ipv6
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Shmulik Ladkani 908d140a87 ip6_tunnel: Allow rcv/xmit even if remote address is a local address 
Currently, ip6_tnl_xmit_ctl drops tunneled packets if the remote
address (outer v6 destination) is one of host's locally configured
addresses.
Same applies to ip6_tnl_rcv_ctl: it drops packets if the remote address
(outer v6 source) is a local address.

This prevents using ipxip6 (and ip6_gre) tunnels whose local/remote
endpoints are on same host; OTOH v4 tunnels (ipip or gre) allow such
configurations.

An example where this proves useful is a system where entities are
identified by their unique v6 addresses, and use tunnels to encapsulate
traffic between them. The limitation prevents placing several entities
on same host.

Introduce IP6_TNL_F_ALLOW_LOCAL_REMOTE which allows to bypass this
restriction.

Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2017-10-25 10:33:27 +09:00
..
ila netfilter: nf_hook_ops structs can be const 2017-07-31 19:10:44 +02:00
netfilter ipv6: mark expected switch fall-throughs 2017-10-18 14:13:08 +01:00
Kconfig ipv6: sr: add helper functions for seg6local 2017-08-25 17:10:24 -07:00
Makefile ipv6: sr: define core operations for seg6local lightweight tunnel 2017-08-07 14:16:22 -07:00
addrconf.c ipv6: addrconf: do not block BH in ipv6_chk_home_addr() 2017-10-24 17:54:19 +09:00
addrconf_core.c net: ipv6: Make inet6addr_validator a blocking notifier 2017-10-20 13:15:07 +01:00
addrlabel.c ipv6: addrlabel: remove refcounting 2017-10-09 10:47:30 -07:00
af_inet6.c ipv6: Add sysctl for per namespace flow label reflection 2017-08-24 18:05:43 -07:00
ah6.c ipv6: mark expected switch fall-throughs 2017-10-18 14:13:08 +01:00
anycast.c net, ipv6: convert ifacaddr6.aca_refcnt from atomic_t to refcount_t 2017-07-04 01:29:04 -07:00
calipso.c net, calipso: convert calipso_doi.refcount from atomic_t to refcount_t 2017-07-04 22:35:16 +01:00
datagram.c net: convert sock.sk_refcnt from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
esp6.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-09-01 17:42:05 -07:00
esp6_offload.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-09-01 17:42:05 -07:00
exthdrs.c ipv6: mark expected switch fall-throughs 2017-10-18 14:13:08 +01:00
exthdrs_core.c net: ipv6: remove unused code in ipv6_find_hdr() 2017-10-05 21:53:02 -07:00
exthdrs_offload.c
…
fib6_notifier.c net: Add module reference to FIB notifiers 2017-09-01 20:33:42 -07:00
fib6_rules.c net: ipv6: avoid overhead when no custom FIB rules are installed 2017-08-08 21:40:08 -07:00
fou6.c fou: make local function static 2017-05-21 13:42:36 -04:00
icmp.c ipv6: mark expected switch fall-throughs 2017-10-18 14:13:08 +01:00
inet6_connection_sock.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-01-28 10:33:06 -05:00
inet6_hashtables.c net: ipv6: add second dif to inet6 socket lookups 2017-08-07 11:39:22 -07:00
ip6_checksum.c ipv6: fix checksum annotation in udp6_csum_init 2016-06-14 15:26:42 -04:00
ip6_fib.c ipv6: mark expected switch fall-throughs 2017-10-18 14:13:08 +01:00
ip6_flowlabel.c ipv6: flowlabel: do not leave opt->tot_len with garbage 2017-10-22 03:22:24 +01:00
ip6_gre.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-10-05 18:19:22 -07:00
ip6_icmp.c ipv6: icmp: add a force_saddr param to icmp6_send() 2016-06-18 22:11:38 -07:00
ip6_input.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-20 10:35:33 -04:00
ip6_offload.c gso: fix payload length when gso_size is zero 2017-10-08 10:12:15 -07:00
ip6_offload.h
…
ip6_output.c ipv6: flowlabel: do not leave opt->tot_len with garbage 2017-10-22 03:22:24 +01:00
ip6_tunnel.c ip6_tunnel: Allow rcv/xmit even if remote address is a local address 2017-10-25 10:33:27 +09:00
ip6_udp_tunnel.c ip6_udp_tunnel: remove unused IPCB related codes 2016-11-02 15:18:36 -04:00
ip6_vti.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-10-05 18:19:22 -07:00
ip6mr.c ipv6: mark expected switch fall-throughs 2017-10-18 14:13:08 +01:00
ipcomp6.c net: inet: Support UID-based routing in IP protocols. 2016-11-04 14:45:23 -04:00
ipv6_sockglue.c net-ipv6: add support for sockopt(SOL_IPV6, IPV6_FREEBIND) 2017-09-30 05:30:52 +01:00
mcast.c net, ipv6: convert ifmcaddr6.mca_refcnt from atomic_t to refcount_t 2017-07-04 01:29:04 -07:00
mcast_snoop.c
…
mip6.c ktime: Get rid of ktime_equal() 2016-12-25 17:21:23 +01:00
ndisc.c neigh: increase queue_len_bytes to match wmem_default 2017-08-29 16:10:50 -07:00
netfilter.c net: inet: Support UID-based routing in IP protocols. 2016-11-04 14:45:23 -04:00
output_core.c ipv6: accept 64k - 1 packet length in ip6_find_1stfragopt() 2017-08-22 10:23:26 -07:00
ping.c net/ipv6: Convert icmpv6_push_pending_frames to void 2017-10-06 09:52:31 -07:00
proc.c proc: snmp6: Use correct type in memset 2017-06-12 09:53:14 -04:00
protocol.c net: Add sysctl to toggle early demux for tcp and udp 2017-03-24 13:17:07 -07:00
raw.c ipv6: mark expected switch fall-throughs 2017-10-18 14:13:08 +01:00
reassembly.c inet: frags: Convert timers to use timer_setup() 2017-10-18 12:39:55 +01:00
route.c ipv6: add ip6_null_entry check in rt6_select() 2017-10-24 18:51:26 +09:00
seg6.c ipv6: sr: define core operations for seg6local lightweight tunnel 2017-08-07 14:16:22 -07:00
seg6_hmac.c ipv6: sr: Use ARRAY_SIZE macro 2017-09-01 18:35:23 -07:00
seg6_iptunnel.c ipv6: sr: add support for encapsulation of L2 frames 2017-08-25 17:10:23 -07:00
seg6_local.c ipv6: sr: remove duplicate routing header type check 2017-09-11 14:34:10 -07:00
sit.c ipv6: speedup ipv6 tunnels dismantle 2017-09-19 16:32:23 -07:00
syncookies.c ipv4: ipv6: initialize treq->txhash in cookie_v[46]_check() 2017-07-18 11:22:51 -07:00
sysctl_net_ipv6.c ipv6: Add sysctl for per namespace flow label reflection 2017-08-24 18:05:43 -07:00
tcp_ipv6.c tcp: add tracepoint trace_tcp_send_reset 2017-10-24 01:21:25 +01:00
tcpv6_offload.c
…
tunnel6.c
…
udp.c udpv6: Fix the checksum computation when HW checksum does not apply 2017-09-18 11:43:03 -07:00
udp_impl.h udp: make *udp*_queue_rcv_skb() functions static 2017-05-18 10:23:33 -04:00
udp_offload.c net: avoid skb_warn_bad_offload false positives on UFO 2017-08-08 21:39:01 -07:00
udplite.c udplite: call proper backlog handlers 2016-11-24 15:32:14 -05:00
xfrm6_input.c xfrm6: Fix CHECKSUM_COMPLETE after IPv6 header push 2017-08-02 11:00:15 +02:00
xfrm6_mode_beet.c networking: make skb_pull & friends return void pointers 2017-06-16 11:48:39 -04:00
xfrm6_mode_ro.c ipv6: xfrm: Handle errors reported by xfrm6_find_1stfragopt() 2017-06-02 13:57:27 -04:00
xfrm6_mode_transport.c ipv6: xfrm: Handle errors reported by xfrm6_find_1stfragopt() 2017-06-02 13:57:27 -04:00
xfrm6_mode_tunnel.c xfrm: Add encapsulation header offsets while SKB is not encrypted 2017-04-14 10:07:39 +02:00
xfrm6_output.c xfrm: Add an IPsec hardware offloading API 2017-04-14 10:06:10 +02:00
xfrm6_policy.c ipv6: mark expected switch fall-throughs 2017-10-18 14:13:08 +01:00
xfrm6_protocol.c xfrm: input: constify xfrm_input_afinfo 2017-02-09 10:22:17 +01:00
xfrm6_state.c
…
xfrm6_tunnel.c net, ipv6: convert xfrm6_tunnel_spi.refcnt from atomic_t to refcount_t 2017-07-04 01:29:04 -07:00