Stefano Brivio e7cc082455 udp: Support for error handlers of tunnels with arbitrary destination port ... ICMP error handling is currently not possible for UDP tunnels not employing a receiving socket with local destination port matching the remote one, because we have no way to look them up. Add an err_handler tunnel encapsulation operation that can be exported by tunnels in order to pass the error to the protocol implementing the encapsulation. We can't easily use a lookup function as we did for VXLAN and GENEVE, as protocol error handlers, which would be in turn called by implementations of this new operation, handle the errors themselves, together with the tunnel lookup. Without a socket, we can't be sure which encapsulation error handler is the appropriate one: encapsulation handlers (the ones for FoU and GUE introduced in the next patch, e.g.) will need to check the new error codes returned by protocol handlers to figure out if errors match the given encapsulation, and, in turn, report this error back, so that we can try all of them in __udp{4,6}_lib_err_encap_no_sk() until we have a match. v2: - Name all arguments in err_handler prototypes (David Miller) 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
..
bpfilter	bpfilter: remove trailing newline	2018-07-24 14:10:42 -07:00
netfilter	netfilter: nf_nat_snmp_basic: add missing helper alias name	2018-10-16 10:01:50 +02:00
af_inet.c	inet: minor optimization for backlog setting in listen(2)	2018-11-07 22:31:07 -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	net/{ipv4,ipv6}: Do not put target net if input nsid is invalid	2018-10-25 16:21:31 -07:00
esp4_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
esp4.c	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next	2018-10-01 22:31:17 -07:00
fib_frontend.c	net: Don't return invalid table id error when dumping all families	2018-10-24 14:06:25 -07:00
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	net: fib_rules: add extack support	2018-04-23 10:21:24 -04:00
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: Plumb support for filtering route dumps	2018-10-16 00:13:12 -07:00
fou.c	Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net	2018-07-03 10:29:26 +09:00
gre_demux.c	net: Convert protocol error handlers from void to int	2018-11-08 17:13:08 -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	sock_diag: request _diag module only when the family or proto has been registered	2018-03-12 11:03:42 -04:00
inet_fragment.c	ip: process in-order fragments efficiently	2018-08-11 17:54:18 -07:00
inet_hashtables.c	net: ensure unbound stream socket to be chosen when not in a VRF	2018-11-07 16:12:38 -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	net: ipv4: Control SKB reprioritization after forwarding	2018-08-01 09:52:30 -07:00
ip_fragment.c	net: drop skb on failure in ip_check_defrag()	2018-11-01 13:55:30 -07:00
ip_gre.c	net: Convert protocol error handlers from void to int	2018-11-08 17:13:08 -08:00
ip_input.c	ip: factor out protocol delivery helper	2018-11-07 16:23:05 -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	net: Add and use skb_mark_not_on_list().	2018-09-10 10:06:54 -07:00
ip_sockglue.c	net: bpfilter: fix iptables failure if bpfilter_umh is disabled	2018-11-05 17:12:18 -08:00
ip_tunnel_core.c	net/ipv4: Update ip_tunnel_metadata_cnt static key to modern api	2018-05-10 15:13:33 -04:00
ip_tunnel.c	ip_tunnel: be careful when accessing the inner header	2018-09-24 12:27:04 -07:00
ip_vti.c	net-ipv4: remove 2 always zero parameters from ipv4_redirect()	2018-09-26 20:30:55 -07:00
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-next	2018-06-06 18:39:49 -07:00
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	net: Don't return invalid table id error when dumping all families	2018-10-24 14:06:25 -07:00
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	ip: discard IPv4 datagrams with overlapping segments.	2018-08-05 17:16:46 -07:00
protocol.c
raw_diag.c
raw.c	net: fix raw socket lookup device bind matching with VRFs	2018-11-07 16:12:39 -08:00
route.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-10-12 21:38:46 -07:00
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: centralize code to set gains	2018-10-17 22:22:53 -07:00
tcp_bic.c
tcp_bpf.c	bpf: tcp_bpf_recvmsg should return EAGAIN when nonblocking and no data	2018-10-30 23:31:22 +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_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_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: add tcp_reset_xmit_timer() helper	2018-10-23 19:42:44 -07:00
tcp_ipv4.c	net: Convert protocol error handlers from void to int	2018-11-08 17:13:08 -08:00
tcp_lp.c
tcp_metrics.c	net: Drop pernet_operations::async	2018-03-27 13:18:09 -04:00
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	tcp: Don't coalesce decrypted and encrypted SKBs	2018-07-16 00:12:09 -07:00
tcp_output.c	tcp: add tcp_reset_xmit_timer() helper	2018-10-23 19:42:44 -07:00
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_timer.c	tcp: do not change tcp_wstamp_ns in tcp_mstamp_refresh	2018-10-15 22:56:41 -07:00
tcp_ulp.c	tcp, ulp: remove socket lock assertion on ULP cleanup	2018-10-16 12:38:41 -07:00
tcp_vegas.c
tcp_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_westwood.c
tcp_yeah.c
tcp.c	mm: remove include/linux/bootmem.h	2018-10-31 08:54:16 -07:00
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	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
udp_tunnel.c	udp: Handle ICMP errors for tunnels with same destination port on both endpoints	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
udplite.c	net: Convert protocol error handlers from void to int	2018-11-08 17:13:08 -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