linux/net/ipv6
Vishwanath Pai da13c59b99 net: display hw address of source machine during ipv6 DAD failure
This patch updates the error messages displayed in kernel log to include
hwaddress of the source machine that caused ipv6 duplicate address
detection failures.

Examples:

a) When we receive a NA packet from another machine advertising our
address:

ICMPv6: NA: 34🆎cd:56:11:e8 advertised our address 2001:db8:: on eth0!

b) When we detect DAD failure during address assignment to an interface:

IPv6: eth0: IPv6 duplicate address 2001:db8:: used by 34🆎cd:56:11:e8
detected!

v2:
    Changed %pI6 to %pI6c in ndisc_recv_na()
    Chaged the v6 address in the commit message to 2001:db8::

Suggested-by: Igor Lubashev <ilubashe@akamai.com>
Signed-off-by: Vishwanath Pai <vpai@akamai.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-01 20:53:49 +09:00
..
ila netfilter: nf_hook_ops structs can be const 2017-07-31 19:10:44 +02:00
netfilter ipv6: mark expected switch fall-throughs 2017-10-18 14:13:08 +01:00
addrconf_core.c net: ipv6: Make inet6addr_validator a blocking notifier 2017-10-20 13:15:07 +01:00
addrconf.c net: display hw address of source machine during ipv6 DAD failure 2017-11-01 20:53:49 +09:00
addrlabel.c ipv6: addrlabel: remove refcounting 2017-10-09 10:47:30 -07:00
af_inet6.c ipv6: Add sysctl for per namespace flow label reflection 2017-08-24 18:05:43 -07:00
ah6.c ipv6: mark expected switch fall-throughs 2017-10-18 14:13:08 +01:00
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_offload.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-09-01 17:42:05 -07:00
esp6.c ipv6: esp6: use BUG_ON instead of if condition followed by BUG 2017-10-27 08:02:00 +02:00
exthdrs_core.c net: ipv6: remove unused code in ipv6_find_hdr() 2017-10-05 21:53:02 -07:00
exthdrs_offload.c
exthdrs.c ipv6: exthdrs: use swap macro in ipv6_dest_hao 2017-10-28 19:06:59 +09:00
fib6_notifier.c net: Add module reference to FIB notifiers 2017-09-01 20:33:42 -07:00
fib6_rules.c net: ipv6: avoid overhead when no custom FIB rules are installed 2017-08-08 21:40:08 -07:00
fou6.c fou: make local function static 2017-05-21 13:42:36 -04:00
icmp.c ipv6: mark expected switch fall-throughs 2017-10-18 14:13:08 +01:00
inet6_connection_sock.c
inet6_hashtables.c net: ipv6: add second dif to inet6 socket lookups 2017-08-07 11:39:22 -07:00
ip6_checksum.c
ip6_fib.c net: Add extack to fib_notifier_info 2017-11-01 11:50:43 +09:00
ip6_flowlabel.c ipv6: flowlabel: do not leave opt->tot_len with garbage 2017-10-22 03:22:24 +01:00
ip6_gre.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-10-30 21:09:24 +09:00
ip6_icmp.c
ip6_input.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-04-20 10:35:33 -04:00
ip6_offload.c gso: fix payload length when gso_size is zero 2017-10-08 10:12:15 -07:00
ip6_offload.h
ip6_output.c ipv6: flowlabel: do not leave opt->tot_len with garbage 2017-10-22 03:22:24 +01:00
ip6_tunnel.c ip6_tunnel: Allow rcv/xmit even if remote address is a local address 2017-10-25 10:33:27 +09:00
ip6_udp_tunnel.c
ip6_vti.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-10-05 18:19:22 -07:00
ip6mr.c ipv6: mark expected switch fall-throughs 2017-10-18 14:13:08 +01:00
ipcomp6.c
ipv6_sockglue.c net-ipv6: add support for sockopt(SOL_IPV6, IPV6_FREEBIND) 2017-09-30 05:30:52 +01:00
Kconfig ipv6: sr: add helper functions for seg6local 2017-08-25 17:10:24 -07:00
Makefile ipv6: sr: define core operations for seg6local lightweight tunnel 2017-08-07 14:16:22 -07:00
mcast_snoop.c
mcast.c net, ipv6: convert ifmcaddr6.mca_refcnt from atomic_t to refcount_t 2017-07-04 01:29:04 -07:00
mip6.c
ndisc.c net: display hw address of source machine during ipv6 DAD failure 2017-11-01 20:53:49 +09:00
netfilter.c
output_core.c ipv6: accept 64k - 1 packet length in ip6_find_1stfragopt() 2017-08-22 10:23:26 -07:00
ping.c net/ipv6: Convert icmpv6_push_pending_frames to void 2017-10-06 09:52:31 -07:00
proc.c proc: snmp6: Use correct type in memset 2017-06-12 09:53:14 -04:00
protocol.c
raw.c ipv6: mark expected switch fall-throughs 2017-10-18 14:13:08 +01:00
reassembly.c inet: frags: Convert timers to use timer_setup() 2017-10-18 12:39:55 +01:00
route.c ipv6: prevent user from adding cached routes 2017-10-29 12:18:58 +09:00
seg6_hmac.c ipv6: sr: Use ARRAY_SIZE macro 2017-09-01 18:35:23 -07:00
seg6_iptunnel.c ipv6: sr: add support for encapsulation of L2 frames 2017-08-25 17:10:23 -07:00
seg6_local.c ipv6: sr: remove duplicate routing header type check 2017-09-11 14:34:10 -07:00
seg6.c ipv6: sr: define core operations for seg6local lightweight tunnel 2017-08-07 14:16:22 -07:00
sit.c net: sit: Update lookup to handle links set to L3 slave 2017-11-01 12:35:17 +09:00
syncookies.c tcp: Namespace-ify sysctl_tcp_workaround_signed_windows 2017-10-28 19:24:38 +09:00
sysctl_net_ipv6.c ipv6: Add sysctl for per namespace flow label reflection 2017-08-24 18:05:43 -07:00
tcp_ipv6.c tcp: add tracepoint trace_tcp_send_reset 2017-10-24 01:21:25 +01:00
tcpv6_offload.c
tunnel6.c
udp_impl.h udp: make *udp*_queue_rcv_skb() functions static 2017-05-18 10:23:33 -04:00
udp_offload.c net: avoid skb_warn_bad_offload false positives on UFO 2017-08-08 21:39:01 -07:00
udp.c udpv6: Fix the checksum computation when HW checksum does not apply 2017-09-18 11:43:03 -07:00
udplite.c
xfrm6_input.c xfrm6: Fix CHECKSUM_COMPLETE after IPv6 header push 2017-08-02 11:00:15 +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 ipv6: xfrm: Handle errors reported by xfrm6_find_1stfragopt() 2017-06-02 13:57:27 -04:00
xfrm6_mode_transport.c ipv6: xfrm: Handle errors reported by xfrm6_find_1stfragopt() 2017-06-02 13:57:27 -04:00
xfrm6_mode_tunnel.c
xfrm6_output.c
xfrm6_policy.c ipv6: mark expected switch fall-throughs 2017-10-18 14:13:08 +01:00
xfrm6_protocol.c
xfrm6_state.c
xfrm6_tunnel.c net, ipv6: convert xfrm6_tunnel_spi.refcnt from atomic_t to refcount_t 2017-07-04 01:29:04 -07:00