Commit e374c618 authored by Julian Anastasov's avatar Julian Anastasov Committed by David S. Miller
Browse files

net: ipv6: more places need LOOPBACK_IFINDEX for flowi6_iif 



To properly match iif in ip rules we have to provide
LOOPBACK_IFINDEX in flowi6_iif, not 0. Some ip6mr_fib_lookup
and fib6_rule_lookup callers need such fix.

Signed-off-by: default avatarJulian Anastasov <ja@ssi.bg>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8c2eab90

net/ipv6/ip6mr.c

+1 −1
Original line number Diff line number Diff line
@@ -1633,7 +1633,7 @@ struct sock *mroute6_socket(struct net *net, struct sk_buff *skb) 
{

	struct mr6_table *mrt;

	struct flowi6 fl6 = {

		.flowi6_iif	= skb->skb_iif,

		.flowi6_iif	= skb->skb_iif ? : LOOPBACK_IFINDEX,

		.flowi6_oif	= skb->dev->ifindex,

		.flowi6_mark	= skb->mark,

	};

net/ipv6/netfilter/ip6t_rpfilter.c

+1 −0
Original line number Diff line number Diff line
@@ -33,6 +33,7 @@ static bool rpfilter_lookup_reverse6(const struct sk_buff *skb, 
	struct ipv6hdr *iph = ipv6_hdr(skb);

	bool ret = false;

	struct flowi6 fl6 = {

		.flowi6_iif = LOOPBACK_IFINDEX,

		.flowlabel = (* (__be32 *) iph) & IPV6_FLOWINFO_MASK,

		.flowi6_proto = iph->nexthdr,

		.daddr = iph->saddr,

net/ipv6/route.c

+2 −0
Original line number Diff line number Diff line
@@ -1273,6 +1273,7 @@ void ip6_redirect(struct sk_buff *skb, struct net *net, int oif, u32 mark) 
	struct flowi6 fl6;



	memset(&fl6, 0, sizeof(fl6));

	fl6.flowi6_iif = LOOPBACK_IFINDEX;

	fl6.flowi6_oif = oif;

	fl6.flowi6_mark = mark;

	fl6.daddr = iph->daddr;
@@ -1294,6 +1295,7 @@ void ip6_redirect_no_header(struct sk_buff *skb, struct net *net, int oif, 
	struct flowi6 fl6;



	memset(&fl6, 0, sizeof(fl6));

	fl6.flowi6_iif = LOOPBACK_IFINDEX;

	fl6.flowi6_oif = oif;

	fl6.flowi6_mark = mark;

	fl6.daddr = msg->dest;

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