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509aba3b0d
linux/net
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FX Le Bail 509aba3b0d IPv6: add the option to use anycast addresses as source addresses in echo reply 
This change allows to follow a recommandation of RFC4942.

- Add "anycast_src_echo_reply" sysctl to control the use of anycast addresses
  as source addresses for ICMPv6 echo reply. This sysctl is false by default
  to preserve existing behavior.
- Add inline check ipv6_anycast_destination().
- Use them in icmpv6_echo_reply().

Reference:
RFC4942 - IPv6 Transition/Coexistence Security Considerations
   (http://tools.ietf.org/html/rfc4942#section-2.1.6)

2.1.6. Anycast Traffic Identification and Security

   [...]
   To avoid exposing knowledge about the internal structure of the
   network, it is recommended that anycast servers now take advantage of
   the ability to return responses with the anycast address as the
   source address if possible.

Signed-off-by: Francois-Xavier Le Bail <fx.lebail@yahoo.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-07 15:51:39 -05:00
..
9p Nothing really exciting: some groundwork for changing virtio endian, and 2013-11-15 13:28:47 +09:00
802 neigh: convert parms to an array 2013-12-09 20:56:12 -05:00
8021q vlan: Fix header ops passthru when doing TX VLAN offload. 2013-12-31 16:23:35 -05:00
appletalk net: rework recvmsg handler msg_name and msg_namelen logic 2013-11-20 21:52:30 -05:00
atm net: rework recvmsg handler msg_name and msg_namelen logic 2013-11-20 21:52:30 -05:00
ax25 net: rework recvmsg handler msg_name and msg_namelen logic 2013-11-20 21:52:30 -05:00
batman-adv Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-01-06 17:37:45 -05:00
bluetooth Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-01-06 17:37:45 -05:00
bridge Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-01-06 17:37:45 -05:00
caif net: rework recvmsg handler msg_name and msg_namelen logic 2013-11-20 21:52:30 -05:00
can can: gw: remove obsolete checks 2013-12-21 14:56:21 +01:00
ceph net: 8021q/bluetooth/bridge/can/ceph: Remove extern from function prototypes 2013-10-19 19:12:11 -04:00
core Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jesse/openvswitch 2014-01-06 19:48:38 -05:00
dcb net/*: Fix FSF address in file headers 2013-12-06 12:37:57 -05:00
dccp Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-01-06 17:37:45 -05:00
decnet Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2013-12-19 18:37:49 -05:00
dns_resolver net/*: Fix FSF address in file headers 2013-12-06 12:37:57 -05:00
dsa
ethernet ethernet: use likely() for common Ethernet encap 2013-09-30 21:52:53 -07:00
hsr net/hsr: using kfree_rcu() to simplify the code 2013-12-17 16:32:30 -05:00
ieee802154 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-01-06 17:37:45 -05:00
ipv4 gre_offload: statically build GRE offloading support 2014-01-06 20:28:34 -05:00
ipv6 IPv6: add the option to use anycast addresses as source addresses in echo reply 2014-01-07 15:51:39 -05:00
ipx net: rework recvmsg handler msg_name and msg_namelen logic 2013-11-20 21:52:30 -05:00
irda net/irda: Fix FSF address in file headers 2013-12-06 12:37:57 -05:00
iucv net: rework recvmsg handler msg_name and msg_namelen logic 2013-11-20 21:52:30 -05:00
key xfrm: export verify_userspi_info for pkfey and netlink interface 2013-12-16 12:54:02 +01:00
l2tp Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2013-12-19 18:37:49 -05:00
lapb
llc Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-01-06 17:37:45 -05:00
mac80211 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 2014-01-01 15:39:56 -05:00
mac802154 mac802154: fix following checkpath.pl warning Prefer pr_warn(... to pr_warning(... 2013-12-22 18:53:08 -05:00
mpls ipip: add GSO/TSO support 2013-10-19 19:36:19 -04:00
netfilter Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jesse/openvswitch 2014-01-06 19:48:38 -05:00
netlabel netlabel: Fix FSF address in file headers 2013-12-06 12:37:56 -05:00
netlink Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jesse/openvswitch 2014-01-06 19:48:38 -05:00
netrom net: rework recvmsg handler msg_name and msg_namelen logic 2013-11-20 21:52:30 -05:00
nfc nfc: Fix FSF address in file headers 2013-12-11 10:56:21 -05:00
openvswitch Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jesse/openvswitch 2014-01-06 19:48:38 -05:00
packet packet: fix "foo * bar" and "(foo*)" problems 2013-12-31 13:38:41 -05:00
phonet Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-11-19 15:50:47 -08:00
rds rds: prevent dereference of a NULL device 2013-12-27 12:33:58 -05:00
rfkill rfkill: Fix FSF address in file headers 2013-12-11 10:56:21 -05:00
rose Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-01-06 17:37:45 -05:00
rxrpc net: rework recvmsg handler msg_name and msg_namelen logic 2013-11-20 21:52:30 -05:00
sched Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-01-06 17:37:45 -05:00
sctp Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-01-06 17:37:45 -05:00
sunrpc NFS client bugfixes 2013-12-05 13:05:48 -08:00
tipc Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-01-06 17:37:45 -05:00
unix Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-12-18 16:42:06 -05:00
vmw_vsock net: rework recvmsg handler msg_name and msg_namelen logic 2013-11-20 21:52:30 -05:00
wimax wimax: remove dead code 2013-11-21 13:09:42 -05:00
wireless Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-01-06 17:37:45 -05:00
x25 x25: convert printks to pr_<level> 2013-12-09 20:24:18 -05:00
xfrm xfrm: export verify_userspi_info for pkfey and netlink interface 2013-12-16 12:54:02 +01:00
compat.c net: clamp ->msg_namelen instead of returning an error 2013-11-29 16:12:52 -05:00
Kconfig net: netprio: rename config to be more consistent with cgroup configs 2014-01-03 23:41:42 +01:00
Makefile net/hsr: Add support for the High-availability Seamless Redundancy protocol (HSRv0) 2013-11-03 23:20:14 -05:00
nonet.c
socket.c net: handle error more gracefully in socketpair() 2013-12-10 22:24:13 -05:00
sysctl_net.c net: Update the sysctl permissions handler to test effective uid/gid 2013-10-07 15:57:56 -04:00