From 2c50fc04757f16427e6213989cee9182c50e2c8a Mon Sep 17 00:00:00 2001 From: Martin Willi Date: Tue, 19 Apr 2022 15:47:01 +0200 Subject: netfilter: Use l3mdev flow key when re-routing mangled packets Commit 40867d74c374 ("net: Add l3mdev index to flow struct and avoid oif reset for port devices") introduces a flow key specific for layer 3 domains, such as a VRF master device. This allows for explicit VRF domain selection instead of abusing the oif flow key. Update ip[6]_route_me_harder() to make use of that new key when re-routing mangled packets within VRFs instead of setting the flow oif, making it consistent with other users. Signed-off-by: Martin Willi Reviewed-by: David Ahern Signed-off-by: Pablo Neira Ayuso --- net/ipv6/netfilter.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'net/ipv6') diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c index 8ce60ab89015..857713d7a38a 100644 --- a/net/ipv6/netfilter.c +++ b/net/ipv6/netfilter.c @@ -31,6 +31,7 @@ int ip6_route_me_harder(struct net *net, struct sock *sk_partial, struct sk_buff int strict = (ipv6_addr_type(&iph->daddr) & (IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL)); struct flowi6 fl6 = { + .flowi6_l3mdev = l3mdev_master_ifindex(dev), .flowi6_mark = skb->mark, .flowi6_uid = sock_net_uid(net, sk), .daddr = iph->daddr, @@ -42,8 +43,6 @@ int ip6_route_me_harder(struct net *net, struct sock *sk_partial, struct sk_buff fl6.flowi6_oif = sk->sk_bound_dev_if; else if (strict) fl6.flowi6_oif = dev->ifindex; - else - fl6.flowi6_oif = l3mdev_master_ifindex(dev); fib6_rules_early_flow_dissect(net, skb, &fl6, &flkeys); dst = ip6_route_output(net, sk, &fl6); -- cgit v1.2.3