linux/net/ipv6, branch v3.7

ipv6: fix inet6_csk_update_pmtu() return value

2012-11-20T20:16:15Z

In case of error, inet6_csk_update_pmtu() should consistently return NULL. Bug added in commit 35ad9b9cf7d8a (ipv6: Add helper inet6_csk_update_pmtu().) Reported-by: Lluís Batlle i Rossell Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller

ipv6: setsockopt(IPIPPROTO_IPV6, IPV6_MINHOPCOUNT) forgot to set return value

2012-11-13T19:38:47Z

Cc: Stephen Hemminger Signed-off-by: Hannes Frederic Sowa Signed-off-by: David S. Miller

gre6: fix rtnl dump messages

2012-11-09T22:11:17Z

Spotted after a code review. Introduced by c12b395a46646bab69089ce7016ac78177f6001f (gre: Support GRE over IPv6). Signed-off-by: Nicolas Dichtel Acked-by: Eric Dumazet Signed-off-by: David S. Miller

ipv6: send unsolicited neighbour advertisements to all-nodes

2012-11-09T21:18:52Z

As documented in RFC4861 (Neighbor Discovery for IP version 6) 7.2.6., unsolicited neighbour advertisements should be sent to the all-nodes multicast address. Signed-off-by: Hannes Frederic Sowa Signed-off-by: David S. Miller

Merge branch 'master' of git://1984.lsi.us.es/nf

2012-10-31T18:54:15Z

Pablo Neira Ayuso says: ==================== The following patchset contains fixes for your net tree, two of them are due to relatively recent changes, one has been a longstanding bug, they are: * Fix incorrect usage of rt_gateway in the H.323 helper, from Julian Anastasov. * Skip re-route in nf_nat code for ICMP traffic. If CONFIG_XFRM is enabled, we waste cycles to look up for the route again. This problem seems to be there since really long time. From Ulrich Weber. * Fix mismatching section in nf_conntrack_reasm, from Hein Tibosch. ==================== Signed-off-by: David S. Miller

netfilter: nf_defrag_ipv6: solve section mismatch in nf_conntrack_reasm

2012-10-28T21:44:15Z

WARNING: net/ipv6/netfilter/nf_defrag_ipv6.o(.text+0xe0): Section mismatch in reference from the function nf_ct_net_init() to the function .init.text:nf_ct_frag6_sysctl_register() The function nf_ct_net_init() references the function __init nf_ct_frag6_sysctl_register(). In case nf_conntrack_ipv6 is compiled as a module, nf_ct_net_init could be called after the init code and data are unloaded. Therefore remove the "__net_init" annotation from nf_ct_frag6_sysctl_register(). Signed-off-by: Hein Tibosch Acked-by: Cong Wang Signed-off-by: Pablo Neira Ayuso

netfilter: nf_nat: don't check for port change on ICMP tuples

2012-10-28T21:43:34Z

ICMP tuples have id in src and type/code in dst. So comparing src.u.all with dst.u.all will always fail here and ip_xfrm_me_harder() is called for every ICMP packet, even if there was no NAT. Signed-off-by: Ulrich Weber Signed-off-by: Pablo Neira Ayuso

ipv6: Set default hoplimit as zero.

2012-10-25T03:14:17Z

Commit a02e4b7dae4551(Demark default hoplimit as zero) only changes the hoplimit checking condition and default value in ip6_dst_hoplimit, not zeros all hoplimit default value. Keep the zeroing ip6_template_metrics[RTAX_HOPLIMIT - 1] to force it as const, cause as a37e6e344910(net: force dst_default_metrics to const section) Signed-off-by: Li RongQing Signed-off-by: David S. Miller

ipv6: addrconf: fix /proc/net/if_inet6

2012-10-16T18:41:47Z

Commit 1d5783030a1 (ipv6/addrconf: speedup /proc/net/if_inet6 filling) added bugs hiding some devices from if_inet6 and breaking applications. "ip -6 addr" could still display all IPv6 addresses, while "ifconfig -a" couldnt. One way to reproduce the bug is by starting in a shell : unshare -n /bin/bash ifconfig lo up And in original net namespace, lo device disappeared from if_inet6 Reported-by: Jan Hinnerk Stosch Tested-by: Jan Hinnerk Stosch Signed-off-by: Eric Dumazet Cc: Mihai Maruseac Signed-off-by: David S. Miller

tcp: resets are misrouted

2012-10-12T17:52:40Z

After commit e2446eaa ("tcp_v4_send_reset: binding oif to iif in no sock case").. tcp resets are always lost, when routing is asymmetric. Yes, backing out that patch will result in misrouting of resets for dead connections which used interface binding when were alive, but we actually cannot do anything here. What's died that's died and correct handling normal unbound connections is obviously a priority. Comment to comment: > This has few benefits: > 1. tcp_v6_send_reset already did that. It was done to route resets for IPv6 link local addresses. It was a mistake to do so for global addresses. The patch fixes this as well. Actually, the problem appears to be even more serious than guaranteed loss of resets. As reported by Sergey Soloviev , those misrouted resets create a lot of arp traffic and huge amount of unresolved arp entires putting down to knees NAT firewalls which use asymmetric routing. Signed-off-by: Alexey Kuznetsov