linux_dsm_epyc7002/net/ipv6
Hangbin Liu 896585d48e net/ipv6: re-do dad when interface has IFF_NOARP flag change
When we add a new IPv6 address, we should also join corresponding solicited-node
multicast address, unless the interface has IFF_NOARP flag, as function
addrconf_join_solict() did. But if we remove IFF_NOARP flag later, we do
not do dad and add the mcast address. So we will drop corresponding neighbour
discovery message that came from other nodes.

A typical example is after creating a ipvlan with mode l3, setting up an ipv6
address and changing the mode to l2. Then we will not be able to ping this
address as the interface doesn't join related solicited-node mcast address.

Fix it by re-doing dad when interface changed IFF_NOARP flag. Then we will add
corresponding mcast group and check if there is a duplicate address on the
network.

Reported-by: Jianlin Shi <jishi@redhat.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 11:17:56 -08:00
..
ila
netfilter netfilter: ipv6: fix oops when defragmenting locally generated fragments 2018-10-25 10:18:26 +02:00
addrconf_core.c
addrconf.c net/ipv6: re-do dad when interface has IFF_NOARP flag change 2018-11-23 11:17:56 -08:00
addrlabel.c net/ipv6: Update ip6addrlbl_dump for strict data checking 2018-10-08 10:39:05 -07:00
af_inet6.c net/ipv6: Add anycast addresses to a global hashtable 2018-11-02 23:54:56 -07:00
ah6.c
anycast.c net/ipv6: Move anycast init/cleanup functions out of CONFIG_PROC_FS 2018-11-05 13:36:27 -08:00
calipso.c
datagram.c
esp6_offload.c
esp6.c
exthdrs_core.c
exthdrs_offload.c
exthdrs.c
fib6_notifier.c
fib6_rules.c
fou6.c
icmp.c
inet6_connection_sock.c
inet6_hashtables.c
ip6_checksum.c net: udp: fix handling of CHECKSUM_COMPLETE packets 2018-10-24 14:18:16 -07:00
ip6_fib.c ipv6: properly check return value in inet6_dump_all() 2018-11-05 17:04:54 -08:00
ip6_flowlabel.c
ip6_gre.c
ip6_icmp.c
ip6_input.c ipv6: Allow the l3mdev to be a loopback 2018-09-19 21:23:01 -07:00
ip6_offload.c
ip6_offload.h
ip6_output.c
ip6_tunnel.c ip6_tunnel: Fix encapsulation layout 2018-10-18 16:54:40 -07:00
ip6_udp_tunnel.c
ip6_vti.c
ip6mr.c net: Don't return invalid table id error when dumping all families 2018-10-24 14:06:25 -07:00
ipcomp6.c
ipv6_sockglue.c
Kconfig
Makefile
mcast_snoop.c
mcast.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-10-19 11:03:06 -07:00
mip6.c
ndisc.c ipv6/ndisc: Preserve IPv6 control buffer if protocol error handlers are called 2018-10-26 15:58:06 -07:00
netfilter.c
output_core.c
ping.c
proc.c
protocol.c
raw.c ipv6: take rcu lock in rawv6_send_hdrinc() 2018-10-05 14:45:34 -07:00
reassembly.c net/ipfrag: let ip[6]frag_high_thresh in ns be higher than in init_net 2018-09-21 19:45:52 -07:00
route.c ipv6: Fix PMTU updates for UDP/raw sockets in presence of VRF 2018-11-18 19:02:56 -08:00
seg6_hmac.c
seg6_iptunnel.c
seg6_local.c
seg6.c
sit.c net-ipv4: remove 2 always zero parameters from ipv4_redirect() 2018-09-26 20:30:55 -07:00
syncookies.c
sysctl_net_ipv6.c
tcp_ipv6.c
tcpv6_offload.c
tunnel6.c
udp_impl.h
udp_offload.c udp: gro behind static key 2018-10-05 11:52:38 -07:00
udp.c net: allow traceroute with a specified interface in a vrf 2018-10-26 16:03:08 -07:00
udplite.c
xfrm6_input.c
xfrm6_mode_beet.c
xfrm6_mode_ro.c
xfrm6_mode_transport.c
xfrm6_mode_tunnel.c
xfrm6_output.c
xfrm6_policy.c net/xfrm: fix out-of-bounds packet access 2018-10-11 13:24:46 +02:00
xfrm6_protocol.c
xfrm6_state.c
xfrm6_tunnel.c