Eric Dumazet ef81bb40bf ipv6: make fragment identifications less predictable ...

[ Backport of upstream commit 87c48fa3b4630905f98268dde838ee43626a060c ]

Fernando Gont reported current IPv6 fragment identification generation
was not secure, because using a very predictable system-wide generator,
allowing various attacks.

IPv4 uses inetpeer cache to address this problem and to get good
performance. We'll use this mechanism when IPv6 inetpeer is stable
enough in linux-3.1

For the time being, we use jhash on destination address to provide less
predictable identifications. Also remove a spinlock and use cmpxchg() to
get better SMP performance.

Reported-by: Fernando Gont <fernando@gont.com.ar>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2011-08-15 18:31:37 -07:00

..

netfilter

netfilter: fix looped (broad|multi)cast's MAC handling

2011-06-16 17:27:04 +02:00

addrconf_core.c

…

addrconf.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6

2011-05-20 13:43:21 -07:00

addrlabel.c

Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

2010-09-27 01:03:03 -07:00

af_inet6.c

ipv6: make fragment identifications less predictable

2011-08-15 18:31:37 -07:00

ah6.c

xfrm: Use separate low and high order bits of the sequence numbers in xfrm_skb_cb

2011-03-13 20:22:28 -07:00

anycast.c

inet: constify ip headers and in6_addr

2011-04-22 11:04:14 -07:00

datagram.c

net: Put fl6_* macros to struct flowi6 and use them again.

2011-03-12 15:08:55 -08:00

esp6.c

Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

2011-05-05 14:59:02 -07:00

exthdrs_core.c

net: return operator cleanup

2010-09-23 14:33:39 -07:00

exthdrs.c

ipv6: Convert to use flowi6 where applicable.

2011-03-12 15:08:54 -08:00

fib6_rules.c

ipv6: Convert to use flowi6 where applicable.

2011-03-12 15:08:54 -08:00

icmp.c

inet: constify ip headers and in6_addr

2011-04-22 11:04:14 -07:00

inet6_connection_sock.c

inet: Pass flowi to ->queue_xmit().

2011-05-08 15:28:28 -07:00

inet6_hashtables.c

net: Compute protocol sequence numbers and fragment IDs using MD5.

2011-08-15 18:31:35 -07:00

ip6_fib.c

net: dont hold rtnl mutex during netlink dump callbacks

2011-05-02 15:26:28 -07:00

ip6_flowlabel.c

ipv6: Convert to use flowi6 where applicable.

2011-03-12 15:08:54 -08:00

ip6_input.c

inet: constify ip headers and in6_addr

2011-04-22 11:04:14 -07:00

ip6_output.c

ipv6: make fragment identifications less predictable

2011-08-15 18:31:37 -07:00

ip6_tunnel.c

net: call dev_alloc_name from register_netdevice

2011-05-05 10:57:45 -07:00

ip6mr.c

inet: constify ip headers and in6_addr

2011-04-22 11:04:14 -07:00

ipcomp6.c

inet: constify ip headers and in6_addr

2011-04-22 11:04:14 -07:00

ipv6_sockglue.c

ipv6: Convert to use flowi6 where applicable.

2011-03-12 15:08:54 -08:00

Kconfig

ipv6: ip6mr: support multiple tables

2010-05-11 14:40:55 +02:00

Makefile

…

mcast.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6

2011-05-20 13:43:21 -07:00

mip6.c

inet: constify ip headers and in6_addr

2011-04-22 11:04:14 -07:00

ndisc.c

ipv4, ipv6, bonding: Restore control over number of peer notifications

2011-04-29 12:44:11 -07:00

netfilter.c

inet: constify ip headers and in6_addr

2011-04-22 11:04:14 -07:00

proc.c

ipv6: reduce per device ICMP mib sizes

2011-05-19 16:21:22 -04:00

protocol.c

net: add __rcu annotations to protocol

2010-10-27 11:37:31 -07:00

raw.c

net: convert %p usage to %pK

2011-05-24 01:13:12 -04:00

reassembly.c

inet: constify ip headers and in6_addr

2011-04-22 11:04:14 -07:00

route.c

ipv6: Don't put artificial limit on routing table size.

2011-07-01 17:30:43 -07:00

sit.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6

2011-05-20 13:43:21 -07:00

syncookies.c

inet: constify ip headers and in6_addr

2011-04-22 11:04:14 -07:00

sysctl_net_ipv6.c

net ipv6: Fix duplicate /proc/sys/net/ipv6/neigh directory entries.

2011-03-21 18:23:34 -07:00

tcp_ipv6.c

net: Compute protocol sequence numbers and fragment IDs using MD5.

2011-08-15 18:31:35 -07:00

tunnel6.c

tunnels: add _rcu annotations

2010-10-25 13:09:45 -07:00

udp_impl.h

…

udp.c

ipv6: make fragment identifications less predictable

2011-08-15 18:31:37 -07:00

udplite.c

net: fix nulls list corruptions in sk_prot_alloc

2010-12-16 14:26:56 -08:00

xfrm6_input.c

…

xfrm6_mode_beet.c

inet: constify ip headers and in6_addr

2011-04-22 11:04:14 -07:00

xfrm6_mode_ro.c

…

xfrm6_mode_transport.c

…

xfrm6_mode_tunnel.c

inet: constify ip headers and in6_addr

2011-04-22 11:04:14 -07:00

xfrm6_output.c

xfrm: Assign the inner mode output function to the dst entry

2011-05-10 15:03:34 -07:00

xfrm6_policy.c

inet: constify ip headers and in6_addr

2011-04-22 11:04:14 -07:00

xfrm6_state.c

xfrm: Assign the inner mode output function to the dst entry

2011-05-10 15:03:34 -07:00

xfrm6_tunnel.c

ipv6: Fix return of xfrm6_tunnel_rcv()

2011-05-24 01:11:51 -04:00