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| author | Thomas Goff <thomas.goff@boeing.com> | 2009-01-27 22:39:59 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-01-27 22:39:59 -0800 |
| commit | 1d6e55f195128813f96458203a9fa14204f9251e (patch) | |
| tree | 8fb8d332a9d5a0df98401f0b49a86173a0c3f25a /net/ipv6/route.c | |
| parent | 6c06a478c9e59d1584a5dc1b2b3519bae5d6546a (diff) | |
| download | linux-1d6e55f195128813f96458203a9fa14204f9251e.tar.gz linux-1d6e55f195128813f96458203a9fa14204f9251e.tar.bz2 linux-1d6e55f195128813f96458203a9fa14204f9251e.zip | |
IPv6: Fix multicast routing bugs.
This patch addresses the IPv6 multicast routing issues described
below. It was tested with XORP 1.4/1.5 as the IPv6 PIM-SM routing
daemon against FreeBSD peers.
net/ipv6/ip6_input.c:
- Don't try to forward link-local multicast packets.
- Don't reset skb2->dev before calling ip6_mr_input() so packets can
be identified as coming from the PIM register vif properly.
net/ipv6/ip6mr.c:
- Fix incoming PIM register messages processing:
* The IPv6 pseudo-header should be included when checksumming PIM
messages (RFC 4601 section 4.9; RFC 3973 section 4.7.1).
* Packets decapsulated from PIM register messages should have
skb->protocol ETH_P_IPV6.
- Enable/disable IPv6 multicast forwarding on the corresponding
interface when a routing daemon adds/removes a multicast virtual
interface.
- Remove incorrect skb_pull() to fix userspace signaling.
- Enable/disable global IPv6 multicast forwarding when an IPv6
multicast routing socket is opened/closed.
net/ipv6/route.c:
- Don't use strict routing logic for packets decapsulated from PIM
register messages (similar to disabling rp_filter for the IPv4
case).
Signed-off-by: Thomas Goff <thomas.goff@boeing.com>
Reviewed-by: Fred Templin <fred.l.templin@boeing.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/route.c')
| -rw-r--r-- | net/ipv6/route.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c index c4a59824ac2c..9c574235c905 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -794,7 +794,7 @@ void ip6_route_input(struct sk_buff *skb) .proto = iph->nexthdr, }; - if (rt6_need_strict(&iph->daddr)) + if (rt6_need_strict(&iph->daddr) && skb->dev->type != ARPHRD_PIMREG) flags |= RT6_LOOKUP_F_IFACE; skb->dst = fib6_rule_lookup(net, &fl, flags, ip6_pol_route_input); |