kernel_optimize_test/net/ipv6
Ahmed Abdelsalam 0cb7498f23 seg6: fix SRH processing to comply with RFC8754
The Segment Routing Header (SRH) which defines the SRv6 dataplane is defined
in RFC8754.

RFC8754 (section 4.1) defines the SR source node behavior which encapsulates
packets into an outer IPv6 header and SRH. The SR source node encodes the
full list of Segments that defines the packet path in the SRH. Then, the
first segment from list of Segments is copied into the Destination address
of the outer IPv6 header and the packet is sent to the first hop in its path
towards the destination.

If the Segment list has only one segment, the SR source node can omit the SRH
as he only segment is added in the destination address.

RFC8754 (section 4.1.1) defines the Reduced SRH, when a source does not
require the entire SID list to be preserved in the SRH. A reduced SRH does
not contain the first segment of the related SR Policy (the first segment is
the one already in the DA of the IPv6 header), and the Last Entry field is
set to n-2, where n is the number of elements in the SR Policy.

RFC8754 (section 4.3.1.1) defines the SRH processing and the logic to
validate the SRH (S09, S10, S11) which works for both reduced and
non-reduced behaviors.

This patch updates seg6_validate_srh() to validate the SRH as per RFC8754.

Signed-off-by: Ahmed Abdelsalam <ahabdels@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-06 17:21:35 -07:00
..
ila net: add net available in build_state 2020-03-29 22:30:57 -07:00
netfilter netfilter: Replace zero-length array with flexible-array member 2020-03-15 15:20:16 +01:00
addrconf_core.c
addrconf.c neigh: support smaller retrans_time settting 2020-04-02 17:55:26 -07:00
addrlabel.c
af_inet6.c net: ipv6: add rpl sr tunnel 2020-03-29 22:30:57 -07:00
ah6.c inet: Use fallthrough; 2020-03-12 15:55:00 -07:00
anycast.c
calipso.c
datagram.c
esp6_offload.c esp6: add gso_segment for esp6 beet mode 2020-03-26 14:51:07 +01:00
esp6.c ESP: Export esp_output_fill_trailer function 2020-02-19 13:52:32 +01:00
exthdrs_core.c
exthdrs_offload.c
exthdrs.c net: ipv6: add support for rpl sr exthdr 2020-03-29 22:30:57 -07:00
fib6_notifier.c
fib6_rules.c
fou6.c
icmp.c net: icmp6: do not select saddr from iif when route has prefsrc set 2020-04-07 18:25:10 -07:00
inet6_connection_sock.c
inet6_hashtables.c
ip6_checksum.c
ip6_fib.c inet: Use fallthrough; 2020-03-12 15:55:00 -07:00
ip6_flowlabel.c
ip6_gre.c net: ip6_gre: Distribute switch variables for initialization 2020-02-20 10:00:19 -08:00
ip6_icmp.c icmp: introduce helper for nat'd source address in network device context 2020-02-13 14:19:00 -08:00
ip6_input.c bpf: Add socket assign support 2020-03-30 13:45:04 -07:00
ip6_offload.c
ip6_offload.h
ip6_output.c net: UDP tunnel encapsulation module for tunnelling different protocols like MPLS, IP, NSH etc. 2020-02-24 13:31:42 -08:00
ip6_tunnel.c net: ip6_gre: Distribute switch variables for initialization 2020-02-20 10:00:19 -08:00
ip6_udp_tunnel.c
ip6_vti.c vti6: Fix memory leak of skb if input policy check fails 2020-03-16 11:13:48 +01:00
ip6mr.c inet: Use fallthrough; 2020-03-12 15:55:00 -07:00
ipcomp6.c
ipv6_sockglue.c ipv6: fix restrict IPV6_ADDRFORM operation 2020-04-20 11:06:39 -07:00
Kconfig net: ipv6: add rpl sr tunnel 2020-03-29 22:30:57 -07:00
Makefile net: ipv6: add rpl sr tunnel 2020-03-29 22:30:57 -07:00
mcast_snoop.c
mcast.c
mip6.c
ndisc.c neigh: support smaller retrans_time settting 2020-04-02 17:55:26 -07:00
netfilter.c
output_core.c
ping.c
proc.c
protocol.c
raw.c inet: Use fallthrough; 2020-03-12 15:55:00 -07:00
reassembly.c
route.c ipv6: Use global sernum for dst validation with nexthop objects 2020-05-01 12:46:30 -07:00
rpl_iptunnel.c net: ipv6: rpl_iptunnel: remove redundant assignments to variable err 2020-04-02 06:57:34 -07:00
rpl.c ipv6: rpl: fix full address compression 2020-04-18 15:04:27 -07:00
seg6_hmac.c
seg6_iptunnel.c net: add net available in build_state 2020-03-29 22:30:57 -07:00
seg6_local.c net: add net available in build_state 2020-03-29 22:30:57 -07:00
seg6.c seg6: fix SRH processing to comply with RFC8754 2020-05-06 17:21:35 -07:00
sit.c
syncookies.c mptcp: handle tcp fallback when using syn cookies 2020-01-29 17:45:20 +01:00
sysctl_net_ipv6.c ipv6: Use math to point per net sysctls into the appropriate struct net 2020-03-03 14:50:08 -08:00
tcp_ipv6.c inet: Use fallthrough; 2020-03-12 15:55:00 -07:00
tcpv6_offload.c
tunnel6.c
udp_impl.h
udp_offload.c udp: Support UDP fraglist GRO/GSO. 2020-01-27 11:00:21 +01:00
udp.c net: Track socket refcounts in skb_steal_sock() 2020-03-30 13:45:04 -07:00
udplite.c
xfrm6_input.c
xfrm6_output.c xfrm: Always set XFRM_TRANSFORMED in xfrm{4,6}_output_finish 2020-04-22 12:32:11 -07:00
xfrm6_policy.c
xfrm6_protocol.c
xfrm6_state.c
xfrm6_tunnel.c ipv6: xfrm6_tunnel.c: Use built-in RCU list checking 2020-02-27 10:17:41 +01:00