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David Ahern f06b7549b7 net: ipv6: Compare lwstate in detecting duplicate nexthops 
Lennert reported a failure to add different mpls encaps in a multipath
route:

  $ ip -6 route add 1234::/16 \
        nexthop encap mpls 10 via fe80::1 dev ens3 \
        nexthop encap mpls 20 via fe80::1 dev ens3
  RTNETLINK answers: File exists

The problem is that the duplicate nexthop detection does not compare
lwtunnel configuration. Add it.

Fixes: 19e42e4515 ("ipv6: support for fib route lwtunnel encap attributes")
Signed-off-by: David Ahern <dsahern@gmail.com>
Reported-by: João Taveira Araújo <joao.taveira@gmail.com>
Reported-by: Lennert Buytenhek <buytenh@wantstofly.org>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Tested-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2017-07-06 10:48:01 +01:00
..
ila
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netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2017-06-30 06:27:09 -07:00
Kconfig
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Makefile
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addrconf.c net, ipv6: convert inet6_ifaddr.refcnt from atomic_t to refcount_t 2017-07-04 01:29:04 -07:00
addrconf_core.c
…
addrlabel.c net, ipv6: convert ip6addrlbl_entry.refcnt from atomic_t to refcount_t 2017-07-04 01:29:04 -07:00
af_inet6.c
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ah6.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2017-06-23 14:17:31 -04:00
anycast.c net, ipv6: convert ifacaddr6.aca_refcnt from atomic_t to refcount_t 2017-07-04 01:29:04 -07:00
calipso.c net, calipso: convert calipso_doi.refcount from atomic_t to refcount_t 2017-07-04 22:35:16 +01:00
datagram.c net: convert sock.sk_refcnt from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
esp6.c net: convert sock.sk_wmem_alloc from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
esp6_offload.c esp6_offload: Fix IP6CB(skb)->nhoff for ESP GRO 2017-06-22 10:49:14 +02:00
exthdrs.c net, ipv6: convert ipv6_txoptions.refcnt from atomic_t to refcount_t 2017-07-04 01:29:03 -07:00
exthdrs_core.c
…
exthdrs_offload.c
…
fib6_rules.c ipv6: Do not leak throw route references 2017-06-20 15:34:02 -04:00
fou6.c
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icmp.c
…
inet6_connection_sock.c
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inet6_hashtables.c net: convert sock.sk_refcnt from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
ip6_checksum.c
…
ip6_fib.c net: ipv6: Compare lwstate in detecting duplicate nexthops 2017-07-06 10:48:01 +01:00
ip6_flowlabel.c
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ip6_gre.c net: add netlink_ext_ack argument to rtnl_link_ops.validate 2017-06-26 23:13:22 -04:00
ip6_icmp.c
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ip6_input.c
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ip6_offload.c
…
ip6_offload.h
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ip6_output.c net: convert sock.sk_wmem_alloc from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
ip6_tunnel.c net: add netlink_ext_ack argument to rtnl_link_ops.validate 2017-06-26 23:13:22 -04:00
ip6_udp_tunnel.c
…
ip6_vti.c net: add netlink_ext_ack argument to rtnl_link_ops.validate 2017-06-26 23:13:22 -04:00
ip6mr.c ip6mr: add netlink notifications on mrt6msg cache reports 2017-06-21 11:22:53 -04:00
ipcomp6.c
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ipv6_sockglue.c Merge branch 'work.memdup_user' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-07-05 16:05:24 -07:00
mcast.c net, ipv6: convert ifmcaddr6.mca_refcnt from atomic_t to refcount_t 2017-07-04 01:29:04 -07:00
mcast_snoop.c
…
mip6.c
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ndisc.c networking: make skb_put & friends return void pointers 2017-06-16 11:48:39 -04:00
netfilter.c
…
output_core.c
…
ping.c
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proc.c
…
protocol.c
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raw.c
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reassembly.c
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route.c net: ipv6: Compare lwstate in detecting duplicate nexthops 2017-07-06 10:48:01 +01:00
seg6.c
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seg6_hmac.c
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seg6_iptunnel.c
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sit.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-06-30 12:43:08 -04:00
syncookies.c net: convert sk_buff.users from atomic_t to refcount_t 2017-07-01 07:39:07 -07:00
sysctl_net_ipv6.c
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tcp_ipv6.c net: convert sock.sk_refcnt from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
tcpv6_offload.c
…
tunnel6.c
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udp.c net: convert sock.sk_refcnt from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
udp_impl.h
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udp_offload.c
…
udplite.c
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xfrm6_input.c xfrm6: Fix IPv6 payload_len in xfrm6_transport_finish 2017-06-22 10:49:14 +02:00
xfrm6_mode_beet.c networking: make skb_pull & friends return void pointers 2017-06-16 11:48:39 -04:00
xfrm6_mode_ro.c
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xfrm6_mode_transport.c
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xfrm6_mode_tunnel.c
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xfrm6_output.c
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xfrm6_policy.c
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xfrm6_protocol.c
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xfrm6_state.c
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xfrm6_tunnel.c net, ipv6: convert xfrm6_tunnel_spi.refcnt from atomic_t to refcount_t 2017-07-04 01:29:04 -07:00