linux/net/ipv6
Ido Schimmel a2840d4e25 seg6: Allow End.X behavior to accept an oif
Extend the End.X behavior to accept an output interface as an optional
attribute and make use of it when resolving a route. This is needed when
user space wants to use a link-local address as the nexthop address.

Before:

 # ip route add 2001:db8:1::/64 encap seg6local action End.X nh6 fe80::1 oif eth0 dev sr6
 # ip route add 2001:db8:2::/64 encap seg6local action End.X nh6 2001:db8:10::1 dev sr6
 $ ip -6 route show
 2001:db8:1::/64  encap seg6local action End.X nh6 fe80::1 dev sr6 metric 1024 pref medium
 2001:db8:2::/64  encap seg6local action End.X nh6 2001:db8:10::1 dev sr6 metric 1024 pref medium

After:

 # ip route add 2001:db8:1::/64 encap seg6local action End.X nh6 fe80::1 oif eth0 dev sr6
 # ip route add 2001:db8:2::/64 encap seg6local action End.X nh6 2001:db8:10::1 dev sr6
 $ ip -6 route show
 2001:db8:1::/64  encap seg6local action End.X nh6 fe80::1 oif eth0 dev sr6 metric 1024 pref medium
 2001:db8:2::/64  encap seg6local action End.X nh6 2001:db8:10::1 dev sr6 metric 1024 pref medium

Note that the oif attribute is not dumped to user space when it was not
specified (as an oif of 0) since each entry keeps track of the optional
attributes that it parsed during configuration (see struct
seg6_local_lwt::parsed_optattrs).

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Andrea Mayer <andrea.mayer@uniroma2.it>
Link: https://patch.msgid.link/20250612122323.584113-4-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
History 2025-06-16 15:31:14 -07:00
..
ila net: Fix checksum update for ILA adj-transport 2025-05-30 19:53:51 -07:00
netfilter treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
addrconf.c treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
addrconf_core.c ipv6: Ensure natural alignment of const ipv6 loopback and router addresses 2024-01-30 12:43:18 +01:00
addrlabel.c ipv6: Use nlmsg_payload in addrlabel file 2025-04-16 18:33:02 -07:00
af_inet6.c ovpn: implement TCP transport 2025-04-17 12:30:03 +02:00
ah6.c net: fill in MODULE_DESCRIPTION()s for ipv6 modules 2024-02-09 14:12:01 -08:00
anycast.c netlink: add IPv6 anycast join/leave notifications 2025-01-09 12:54:45 +01:00
calipso.c netlabel: Fix NULL pointer exception caused by CALIPSO on IPv4 sockets 2025-04-02 16:01:04 -07:00
datagram.c ipv6: annotate data-races around np->ucast_oif 2023-12-11 10:59:17 +00:00
esp6.c espintcp: remove encap socket caching to avoid reference leak 2025-04-14 11:59:17 +02:00
esp6_offload.c xfrm: Add an inbound percpu state cache. 2024-10-29 11:56:18 +01:00
exthdrs.c net: use sock_kmemdup for ip_options 2025-03-03 17:16:34 -08:00
exthdrs_core.c ipv6: Fix out-of-bounds access in ipv6_find_tlv() 2023-05-24 08:43:39 +01:00
exthdrs_offload.c net: gso: add HBH extension header offload support 2024-01-05 08:11:49 -08:00
fib6_notifier.c net: do not acquire rtnl in fib_seq_sum() 2024-10-11 15:35:05 -07:00
fib6_rules.c ipv6: fib_rules: Add DSCP mask matching 2025-02-21 16:08:48 -08:00
fou6.c net: Add MODULE_DESCRIPTION entries to network modules 2020-06-20 21:33:57 -07:00
icmp.c inet: ping: avoid skb_clone() dance in ping_rcv() 2025-02-28 14:41:33 -08:00
inet6_connection_sock.c net: Unexport shared functions for DCCP. 2025-04-11 18:58:11 -07:00
inet6_hashtables.c inet: call inet6_ehashfn() once from inet6_hash_connect() 2025-03-06 15:26:02 -08:00
ioam6.c net: convert to nla_get_*_default() 2024-11-11 10:32:06 -08:00
ioam6_iptunnel.c net: ipv6: ioam6: fix double reallocation 2025-04-17 12:52:34 +02:00
ip6_checksum.c net: udp: fix handling of CHECKSUM_COMPLETE packets 2018-10-24 14:18:16 -07:00
ip6_fib.c treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
ip6_flowlabel.c treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
ip6_gre.c ipv6: Convert tunnel devices' ->exit_batch_rtnl() to ->exit_rtnl(). 2025-04-14 17:08:42 -07:00
ip6_icmp.c net: icmp: pass zeroed opts from icmp{,v6}_ndo_send before sending 2021-02-23 11:29:52 -08:00
ip6_input.c ipv6: Use RCU in ip6_input() 2025-02-06 16:14:15 -08:00
ip6_offload.c net: gro: initialize network_offset in network layer 2024-05-27 16:46:59 -07:00
ip6_offload.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ip6_output.c net: devmem: Implement TX path 2025-05-13 11:12:48 +02:00
ip6_tunnel.c ipv6: Convert tunnel devices' ->exit_batch_rtnl() to ->exit_rtnl(). 2025-04-14 17:08:42 -07:00
ip6_udp_tunnel.c net: fill in MODULE_DESCRIPTION()s for ipv6 modules 2024-02-09 14:12:01 -08:00
ip6_vti.c ipv6: Convert tunnel devices' ->exit_batch_rtnl() to ->exit_rtnl(). 2025-04-14 17:08:42 -07:00
ip6mr.c treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
ipcomp6.c xfrm: ipcomp: add extack to ipcomp{4,6}_init_state 2022-09-29 07:18:00 +02:00
ipv6_sockglue.c ipv6: avoid indirect calls for SOL_IP socket options 2024-08-26 14:53:50 -07:00
Kconfig net: ipv6: select DST_CACHE from IPV6_RPL_LWTUNNEL 2024-09-22 19:52:07 +01:00
Makefile net/tcp: Introduce TCP_AO setsockopt()s 2023-10-27 10:35:44 +01:00
mcast.c ipv6: mcast: add RCU protection to mld_newpack() 2025-02-13 08:37:21 -08:00
mcast_snoop.c net: bridge: mcast: fix broken length + header check for MRDv6 Adv. 2021-04-27 14:02:06 -07:00
mip6.c net: fill in MODULE_DESCRIPTION()s for ipv6 modules 2024-02-09 14:12:01 -08:00
ndisc.c ndisc: ndisc_send_redirect() cleanup 2025-02-15 09:08:46 -08:00
netfilter.c netfilter: bridge: Move specific fragmented packet to slow_path instead of dropping it 2025-05-05 13:13:08 +02:00
output_core.c ipv6: annotate data-races around cnf.hop_limit 2024-03-01 08:42:31 +00:00
ping.c ipv6: initialize inet socket cookies with sockcm_init 2025-02-18 18:27:20 -08:00
proc.c minmax: add a few more MIN_T/MAX_T users 2024-07-28 13:41:14 -07:00
protocol.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
raw.c ipv6: initialize inet socket cookies with sockcm_init 2025-02-18 18:27:20 -08:00
reassembly.c treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
route.c ipv6: Move fib6_config_validate() to ip6_route_add(). 2025-06-12 08:12:35 -07:00
rpl.c ipv6: rpl: Remove pskb(_may)?_pull() in ipv6_rpl_srh_rcv(). 2023-06-19 11:32:58 -07:00
rpl_iptunnel.c net: ipv6: fix dst ref loop on input in rpl lwt 2025-02-27 14:18:22 +01:00
seg6.c ipv6: sr: restruct ifdefines 2024-05-30 18:29:38 -07:00
seg6_hmac.c ipv6: sr: Use nested-BH locking for hmac_storage 2025-05-15 15:23:31 +02:00
seg6_iptunnel.c net: ipv6: fix dst ref loop on input in seg6 lwt 2025-02-27 14:18:21 +01:00
seg6_local.c seg6: Allow End.X behavior to accept an oif 2025-06-16 15:31:14 -07:00
sit.c ipv6: Convert tunnel devices' ->exit_batch_rtnl() to ->exit_rtnl(). 2025-04-14 17:08:42 -07:00
syncookies.c tcp: use sk_skb_reason_drop to free rx packets 2024-06-19 12:44:22 +01:00
sysctl_net_ipv6.c sysctl: treewide: constify the ctl_table argument of proc_handlers 2024-07-24 20:59:29 +02:00
tcp_ao.c net/tcp: Wire up l3index to TCP-AO 2023-10-27 10:35:46 +01:00
tcp_ipv6.c ip: load balance tcp connections to single dst addr and port 2025-04-29 16:22:25 +02:00
tcpv6_offload.c net: use sock_gen_put() when sk_state is TCP_TIME_WAIT 2025-05-01 07:00:19 -07:00
tunnel6.c net: fill in MODULE_DESCRIPTION()s for ipv6 modules 2024-02-09 14:12:01 -08:00
udp.c udp_tunnel: create a fastpath GRO lookup. 2025-04-08 18:19:41 -07:00
udp_impl.h tcp/udp: Call inet6_destroy_sock() in IPv6 sk->sk_destruct(). 2022-10-12 17:50:37 -07:00
udp_offload.c udp_tunnel: create a fastpath GRO lookup. 2025-04-08 18:19:41 -07:00
udplite.c udplite: remove UDPLITE_BIT 2023-09-14 16:16:36 +02:00
xfrm6_input.c xfrm: Fix UDP GRO handling for some corner cases 2025-04-17 11:08:16 +02:00
xfrm6_output.c xfrm: Fix the usage of skb->sk 2025-01-20 07:06:53 +01:00
xfrm6_policy.c xfrm: respect ip protocols rules criteria when performing dst lookups 2024-09-23 07:02:07 +02:00
xfrm6_protocol.c xfrm: add support for UDPv6 encapsulation of ESP 2020-04-28 11:28:36 +02:00
xfrm6_state.c xfrm: remove output_finish indirection from xfrm_state_afinfo 2020-05-06 09:40:08 +02:00
xfrm6_tunnel.c ipsec-next-2024-03-06 2024-03-08 10:56:05 +00:00