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OpenCloudOS-Kernel/net/ipv6
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Roland Dreier ec831ea72e net: Add default_mtu() methods to blackhole dst_ops 
When an IPSEC SA is still being set up, __xfrm_lookup() will return
-EREMOTE and so ip_route_output_flow() will return a blackhole route.
This can happen in a sndmsg call, and after d33e455337 ("net: Abstract
default MTU metric calculation behind an accessor.") this leads to a
crash in ip_append_data() because the blackhole dst_ops have no
default_mtu() method and so dst_mtu() calls a NULL pointer.

Fix this by adding default_mtu() methods (that simply return 0, matching
the old behavior) to the blackhole dst_ops.

The IPv4 part of this patch fixes a crash that I saw when using an IPSEC
VPN; the IPv6 part is untested because I don't have an IPv6 VPN, but it
looks to be needed as well.

Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2011-01-31 13:16:00 -08:00
..
netfilter netfilter: fix compilation when conntrack is disabled but tproxy is enabled 2011-01-12 20:25:08 +01:00
Kconfig ipv6: ip6mr: support multiple tables 2010-05-11 14:40:55 +02:00
Makefile [IPV6] MROUTE: Support multicast forwarding. 2008-04-05 22:33:38 +09:00
addrconf.c ipv6: Revert 'administrative down' address handling changes. 2011-01-25 12:49:08 -08:00
addrconf_core.c ipv6: Remove IPV6_ADDR_RESERVED 2010-02-26 03:59:07 -08:00
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 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-01-13 10:05:56 -08:00
ah6.c ah: reload pointers to skb data after calling skb_cow_data() 2011-01-11 14:03:10 -08:00
anycast.c net-next: remove useless union keyword 2010-06-10 23:31:35 -07:00
datagram.c tproxy: added tproxy sockopt interface in the IPV6 layer 2010-10-21 16:08:28 +02:00
esp6.c xfrm: Traffic Flow Confidentiality for IPv6 ESP 2010-12-10 14:43:59 -08:00
exthdrs.c ipv6: avoid two atomics in ipv6_rthdr_rcv() 2010-06-14 23:13:06 -07:00
exthdrs_core.c net: return operator cleanup 2010-09-23 14:33:39 -07:00
fib6_rules.c fib6: use FIB_LOOKUP_NOREF in fib6_rule_lookup() 2010-10-16 11:13:21 -07:00
icmp.c ipv6: fix ICMP6_MIB_OUTERRORS 2010-06-09 18:39:27 -07:00
inet6_connection_sock.c tcp: disallow bind() to reuse addr/port 2011-01-11 14:03:07 -08:00
inet6_hashtables.c tcp: Fix a connect() race with timewait sockets 2009-12-08 20:17:51 -08:00
ip6_fib.c fib: avoid false sharing on fib_table_hash 2010-10-16 11:13:23 -07:00
ip6_flowlabel.c IPv6: Add dontfrag argument to relevant functions 2010-04-23 23:35:28 -07:00
ip6_input.c Merge branch 'master' of /repos/git/net-next-2.6 2010-04-20 16:02:01 +02:00
ip6_output.c inet6: prevent network storms caused by linux IPv6 routers 2011-01-12 18:51:55 -08:00
ip6_tunnel.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-08 13:47:38 -08:00
ip6mr.c net: use the macros defined for the members of flowi 2010-11-17 12:27:45 -08:00
ipcomp6.c xfrm: SA lookups signature with mark 2010-02-22 16:20:22 -08:00
ipv6_sockglue.c tproxy: Add missing CAP_NET_ADMIN check to ipv6 side 2010-10-24 16:07:50 -07:00
mcast.c ipv6: mcast: RCU conversion 2010-11-24 11:16:42 -08:00
mip6.c IPv6: fix CoA check in RH2 input handler (mip6_rthdr_input()) 2010-07-18 15:04:33 -07:00
ndisc.c net: Abstract away all dst_entry metrics accesses. 2010-12-09 10:46:36 -08:00
netfilter.c net: use the macros defined for the members of flowi 2010-11-17 12:27:45 -08:00
proc.c ipv6/udp: report SndbufErrors and RcvbufErrors 2010-10-30 16:17:23 -07:00
protocol.c net: add __rcu annotations to protocol 2010-10-27 11:37:31 -07:00
raw.c net: add __rcu annotation to sk_filter 2010-10-25 14:18:28 -07:00
reassembly.c ipv6: Prepare the tree for un-inlined jhash. 2010-11-28 11:26:21 -08:00
route.c net: Add default_mtu() methods to blackhole dst_ops 2011-01-31 13:16:00 -08:00
sit.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-08 13:47:38 -08:00
syncookies.c syncookies: add support for ECN 2010-06-26 22:00:03 -07:00
sysctl_net_ipv6.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
tcp_ipv6.c net: Abstract default ADVMSS behind an accessor. 2010-12-13 12:52:14 -08:00
tunnel6.c tunnels: add _rcu annotations 2010-10-25 13:09:45 -07:00
udp.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-17 12:27:22 -08:00
udp_impl.h net: Make setsockopt() optlen be unsigned. 2009-09-30 16:12:20 -07:00
udplite.c net: fix nulls list corruptions in sk_prot_alloc 2010-12-16 14:26:56 -08:00
xfrm6_input.c netfilter: ipv6: use NFPROTO values for NF_HOOK invocation 2010-03-25 16:00:49 +01:00
xfrm6_mode_beet.c ipsec: Interfamily IPSec BEET, ipv4-inner ipv6-outer 2008-08-06 02:40:25 -07:00
xfrm6_mode_ro.c [IPSEC]: Make x->lastused an unsigned long 2008-01-28 14:53:52 -08:00
xfrm6_mode_transport.c [IPSEC]: Use IPv6 calling convention as the convention for x->mode->output 2007-10-10 16:55:54 -07:00
xfrm6_mode_tunnel.c ipv6: Use ip6_dst_hoplimit() instead of direct dst_metric() calls. 2010-12-12 21:14:46 -08:00
xfrm6_output.c ipv6: Fragment locally generated tunnel-mode IPSec6 packets as needed. 2010-12-19 20:22:23 -08:00
xfrm6_policy.c xfrm6: Don't forget to propagate peer into ipsec route. 2011-01-26 13:41:03 -08:00
xfrm6_state.c xfrm: Allow different selector family in temporary state 2010-09-20 11:11:38 -07:00
xfrm6_tunnel.c xfrm6: make xfrm6_tunnel_free_spi local 2010-10-21 03:09:45 -07:00