linux/net/ipv6
David Lebrun 46738b1317 ipv6: sr: add option to control lwtunnel support
This patch adds a new option CONFIG_IPV6_SEG6_LWTUNNEL to enable/disable
support of encapsulation with the lightweight tunnels. When this option
is enabled, CONFIG_LWTUNNEL is automatically selected.

Fix commit 6c8702c60b ("ipv6: sr: add support for SRH encapsulation and injection with lwtunnels")

Without a proper option to control lwtunnel support for SR-IPv6, if
CONFIG_LWTUNNEL=n then the IPv6 initialization fails as a consequence
of seg6_iptunnel_init() failure with EOPNOTSUPP:

NET: Registered protocol family 10
IPv6: Attempt to unregister permanent protocol 6
IPv6: Attempt to unregister permanent protocol 136
IPv6: Attempt to unregister permanent protocol 17
NET: Unregistered protocol family 10

Tested (compiling, booting, and loading ipv6 module when relevant)
with possible combinations of CONFIG_IPV6={y,m,n},
CONFIG_IPV6_SEG6_LWTUNNEL={y,n} and CONFIG_LWTUNNEL={y,n}.

Reported-by: Lorenzo Colitti <lorenzo@google.com>
Suggested-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David Lebrun <david.lebrun@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-16 11:29:46 -05:00
..
ila ila: Fix crash caused by rhashtable changes 2016-11-02 15:26:02 -04:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-11-15 10:54:36 -05:00
addrconf_core.c
addrconf.c ipv6: sr: add core files for SR HMAC support 2016-11-09 20:40:06 -05:00
addrlabel.c ipv6/addrlabel: fix ip6addrlbl_get() 2015-12-22 15:57:54 -05:00
af_inet6.c ipv6: sr: add code base for control plane support of SR-IPv6 2016-11-09 20:40:06 -05:00
ah6.c net: inet: Support UID-based routing in IP protocols. 2016-11-04 14:45:23 -04:00
anycast.c
calipso.c calipso: fix resource leak on calipso_genopt failure 2016-08-13 14:56:17 -07:00
datagram.c net: inet: Support UID-based routing in IP protocols. 2016-11-04 14:45:23 -04:00
esp6.c net: inet: Support UID-based routing in IP protocols. 2016-11-04 14:45:23 -04:00
exthdrs_core.c ipv6: constify the skb pointer of ipv6_find_tlv(). 2016-06-27 15:06:15 -04:00
exthdrs_offload.c ipv6: fix exthdrs offload registration in out_rt path 2015-09-02 15:31:00 -07:00
exthdrs.c ipv6: sr: add support for SRH injection through setsockopt 2016-11-09 20:40:06 -05:00
fib6_rules.c net: flow: Add l3mdev flow update 2016-09-10 23:12:51 -07:00
fou6.c fou: add Kconfig options for IPv6 support 2016-05-29 22:24:21 -07:00
icmp.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-11-15 10:54:36 -05:00
inet6_connection_sock.c net: inet: Support UID-based routing in IP protocols. 2016-11-04 14:45:23 -04:00
inet6_hashtables.c inet: Fix missing return value in inet6_hash 2016-10-29 12:01:49 -04:00
ip6_checksum.c ipv6: fix checksum annotation in udp6_csum_init 2016-06-14 15:26:42 -04:00
ip6_fib.c ipv6: report NLM_F_CREATE and NLM_F_EXCL flags in RTM_NEWROUTE events 2016-09-09 16:50:23 -07:00
ip6_flowlabel.c ipv6: add new struct ipcm6_cookie 2016-05-03 16:08:14 -04:00
ip6_gre.c net: inet: Support UID-based routing in IP protocols. 2016-11-04 14:45:23 -04:00
ip6_icmp.c ipv6: icmp: add a force_saddr param to icmp6_send() 2016-06-18 22:11:38 -07:00
ip6_input.c net: vrf: ipv6 support for local traffic to local addresses 2016-06-08 00:25:38 -07:00
ip6_offload.c net: add recursion limit to GRO 2016-10-20 14:32:22 -04:00
ip6_offload.h udp: Add GRO functions to UDP socket 2016-04-07 16:53:29 -04:00
ip6_output.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-11-15 10:54:36 -05:00
ip6_tunnel.c ipv6: add source address argument for ipv6_push_nfrag_opts 2016-11-09 20:40:06 -05:00
ip6_udp_tunnel.c ip6_udp_tunnel: remove unused IPCB related codes 2016-11-02 15:18:36 -04:00
ip6_vti.c net: inet: Support UID-based routing in IP protocols. 2016-11-04 14:45:23 -04:00
ip6mr.c net: pim: add all RFC7761 message types 2016-10-31 16:18:30 -04:00
ipcomp6.c net: inet: Support UID-based routing in IP protocols. 2016-11-04 14:45:23 -04:00
ipv6_sockglue.c ipv6: sr: add support for SRH injection through setsockopt 2016-11-09 20:40:06 -05:00
Kconfig ipv6: sr: add option to control lwtunnel support 2016-11-16 11:29:46 -05:00
Makefile ipv6: sr: add option to control lwtunnel support 2016-11-16 11:29:46 -05:00
mcast_snoop.c
mcast.c ipv6: fix a potential deadlock in do_ipv6_setsockopt() 2016-10-21 11:29:02 -04:00
mip6.c ipv6: use ktime_t for internal timestamps 2015-10-05 03:16:47 -07:00
ndisc.c net: l3mdev: remove redundant calls 2016-09-10 23:12:52 -07:00
netfilter.c net: inet: Support UID-based routing in IP protocols. 2016-11-04 14:45:23 -04:00
output_core.c net: l3mdev: Add hook to output path 2016-09-10 23:12:52 -07:00
ping.c net: inet: Support UID-based routing in IP protocols. 2016-11-04 14:45:23 -04:00
proc.c proc: Reduce cache miss in snmp6_seq_show 2016-09-30 01:50:44 -04:00
protocol.c
raw.c net: inet: Support UID-based routing in IP protocols. 2016-11-04 14:45:23 -04:00
reassembly.c ipv6: on reassembly, record frag_max_size 2016-11-03 15:41:11 -04:00
route.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-11-15 10:54:36 -05:00
seg6_hmac.c ipv6: sr: add core files for SR HMAC support 2016-11-09 20:40:06 -05:00
seg6_iptunnel.c ipv6: sr: add calls to verify and insert HMAC signatures 2016-11-09 20:40:06 -05:00
seg6.c ipv6: sr: add option to control lwtunnel support 2016-11-16 11:29:46 -05:00
sit.c ipv4/6: use core net MTU range checking 2016-10-20 14:51:10 -04:00
syncookies.c net: inet: Support UID-based routing in IP protocols. 2016-11-04 14:45:23 -04:00
sysctl_net_ipv6.c calipso: Add a label cache. 2016-06-27 15:06:17 -04:00
tcp_ipv6.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-11-15 10:54:36 -05:00
tcpv6_offload.c
tunnel6.c ipv6: fix tunnel error handling 2015-11-03 10:52:13 -05:00
udp_impl.h ipv6: udp: remove udp_v6_clear_sk() 2016-08-23 23:23:50 -07:00
udp_offload.c gso: Remove arbitrary checks for unsupported GSO 2016-05-20 18:03:15 -04:00
udp.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2016-11-13 22:41:25 -05:00
udplite.c udplite: fix NULL pointer dereference 2016-11-15 11:59:38 -05:00
xfrm6_input.c vti6: fix input path 2016-09-21 10:09:14 +02:00
xfrm6_mode_beet.c
xfrm6_mode_ro.c
xfrm6_mode_transport.c
xfrm6_mode_tunnel.c ipv6: update skb->csum when CE mark is propagated 2016-01-15 15:07:23 -05:00
xfrm6_output.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-10-24 06:54:12 -07:00
xfrm6_policy.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-09-12 15:52:44 -07:00
xfrm6_protocol.c
xfrm6_state.c
xfrm6_tunnel.c vti6: fix input path 2016-09-21 10:09:14 +02:00