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alistair23-linux/net/ipv6
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Stefano Brivio b8a51b38e4 fou, fou6: ICMP error handlers for FoU and GUE 
As the destination port in FoU and GUE receiving sockets doesn't
necessarily match the remote destination port, we can't associate errors
to the encapsulating tunnels with a socket lookup -- we need to blindly
try them instead. This means we don't even know if we are handling errors
for FoU or GUE without digging into the packets.

Hence, implement a single handler for both, one for IPv4 and one for IPv6,
that will check whether the packet that generated the ICMP error used a
direct IP encapsulation or if it had a GUE header, and send the error to
the matching protocol handler, if any.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-08 17:13:08 -08:00
..
ila ila: remove blank lines at EOF 2018-07-24 14:10:42 -07:00
netfilter netfilter: ipv6: fix oops when defragmenting locally generated fragments 2018-10-25 10:18:26 +02:00
addrconf.c net/{ipv4,ipv6}: Do not put target net if input nsid is invalid 2018-10-25 16:21:31 -07:00
addrconf_core.c net/ipv6: Add helper to return path MTU based on fib result 2018-05-22 10:51:09 +02:00
addrlabel.c net/ipv6: Update ip6addrlbl_dump for strict data checking 2018-10-08 10:39:05 -07:00
af_inet6.c net/ipv6: Add anycast addresses to a global hashtable 2018-11-02 23:54:56 -07:00
ah6.c
anycast.c net/ipv6: compute anycast address hash only if dev is null 2018-11-08 17:04:43 -08:00
calipso.c ipv6: make ipv6_renew_options() interrupt/kernel safe 2018-07-05 20:15:26 +09:00
datagram.c net: ensure unbound datagram socket to be chosen when not in a VRF 2018-11-07 16:12:38 -08:00
esp6.c esp: remove redundant define esph 2018-08-29 08:02:43 +02:00
esp6_offload.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2018-07-27 09:33:37 -07:00
exthdrs.c ipv6: make ipv6_renew_options() interrupt/kernel safe 2018-07-05 20:15:26 +09:00
exthdrs_core.c
exthdrs_offload.c
fib6_notifier.c
fib6_rules.c
fou6.c fou, fou6: ICMP error handlers for FoU and GUE 2018-11-08 17:13:08 -08:00
icmp.c net: Convert protocol error handlers from void to int 2018-11-08 17:13:08 -08:00
inet6_connection_sock.c
inet6_hashtables.c net: ensure unbound stream socket to be chosen when not in a VRF 2018-11-07 16:12:38 -08:00
ip6_checksum.c net: udp: fix handling of CHECKSUM_COMPLETE packets 2018-10-24 14:18:16 -07:00
ip6_fib.c ipv6: properly check return value in inet6_dump_all() 2018-11-05 17:04:54 -08:00
ip6_flowlabel.c ipv6: fold sockcm_cookie into ipcm6_cookie 2018-07-07 10:58:49 +09:00
ip6_gre.c net: Convert protocol error handlers from void to int 2018-11-08 17:13:08 -08:00
ip6_icmp.c
ip6_input.c ipv6: factor out protocol delivery helper 2018-11-07 16:23:05 -08:00
ip6_offload.c ipv6: gro: do not use slow memcmp() in ipv6_gro_receive() 2018-11-06 14:59:27 -08:00
ip6_offload.h
ip6_output.c Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net 2018-09-18 09:33:27 -07:00
ip6_tunnel.c ip6_tunnel: Fix encapsulation layout 2018-10-18 16:54:40 -07:00
ip6_udp_tunnel.c
ip6_vti.c vti6: remove !skb->ignore_df check from vti6_xmit() 2018-08-29 17:51:44 -07:00
ip6mr.c net: Don't return invalid table id error when dumping all families 2018-10-24 14:06:25 -07:00
ipcomp6.c
ipv6_sockglue.c ipv6: allow ping to link-local address in VRF 2018-11-07 16:12:39 -08:00
Kconfig net: remove blank lines at end of file 2018-07-24 14:10:43 -07:00
Makefile
mcast.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-10-19 11:03:06 -07:00
mcast_snoop.c
mip6.c
ndisc.c ipv6/ndisc: Preserve IPv6 control buffer if protocol error handlers are called 2018-10-26 15:58:06 -07:00
netfilter.c netfilter: utils: move nf_ip6_checksum* from ipv6 to utils 2018-07-16 17:51:48 +02:00
output_core.c
ping.c ipv6: fold sockcm_cookie into ipcm6_cookie 2018-07-07 10:58:49 +09:00
proc.c
protocol.c
raw.c net: fix raw socket lookup device bind matching with VRFs 2018-11-07 16:12:39 -08:00
reassembly.c net/ipfrag: let ip[6]frag_high_thresh in ns be higher than in init_net 2018-09-21 19:45:52 -07:00
route.c net: Add extack argument to ip_fib_metrics_init 2018-11-06 15:00:45 -08:00
seg6.c rhashtable: split rhashtable.h 2018-06-22 13:43:27 +09:00
seg6_hmac.c Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net 2018-07-03 10:29:26 +09:00
seg6_iptunnel.c ipv6: sr: fix useless rol32 call on hash 2018-07-18 15:10:47 -07:00
seg6_local.c bpf: add End.DT6 action to bpf_lwt_seg6_action helper 2018-07-31 09:22:48 +02:00
sit.c net-ipv4: remove 2 always zero parameters from ipv4_redirect() 2018-09-26 20:30:55 -07:00
syncookies.c
sysctl_net_ipv6.c
tcp_ipv6.c net: Convert protocol error handlers from void to int 2018-11-08 17:13:08 -08:00
tcpv6_offload.c net: Convert GRO SKB handling to list_head. 2018-06-26 11:33:04 +09:00
tunnel6.c net: Convert protocol error handlers from void to int 2018-11-08 17:13:08 -08:00
udp.c udp: Support for error handlers of tunnels with arbitrary destination port 2018-11-08 17:13:08 -08:00
udp_impl.h net: Convert protocol error handlers from void to int 2018-11-08 17:13:08 -08:00
udp_offload.c udp: implement GRO for plain UDP sockets. 2018-11-07 16:23:04 -08:00
udplite.c net: Convert protocol error handlers from void to int 2018-11-08 17:13:08 -08:00
xfrm6_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
xfrm6_mode_beet.c
xfrm6_mode_ro.c ipv6: xfrm: use 64-bit timestamps 2018-07-11 15:26:35 +02:00
xfrm6_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
xfrm6_mode_tunnel.c
xfrm6_output.c xfrm6: call kfree_skb when skb is toobig 2018-09-03 07:37:57 +02:00
xfrm6_policy.c net/xfrm: fix out-of-bounds packet access 2018-10-11 13:24:46 +02:00
xfrm6_protocol.c net: Convert protocol error handlers from void to int 2018-11-08 17:13:08 -08:00
xfrm6_state.c
xfrm6_tunnel.c