'ip6 dscp set $v' in an nftables outpute route chain has no effect.
While nftables does detect the dscp change and calls the reroute hook.
But ip6_route_me_harder never sets the dscp/flowlabel:
flowlabel/dsfield routing rules are ignored and no reroute takes place.
Thanks to Yi Chen for an excellent reproducer script that I used
to validate this change.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: Yi Chen <yiche@xxxxxxxxxx>
Signed-off-by: Florian Westphal <fw@xxxxxxxxx>
---
net/ipv6/netfilter.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c
index 53d255838e6a..5d989d803009 100644
--- a/net/ipv6/netfilter.c
+++ b/net/ipv6/netfilter.c
@@ -36,6 +36,7 @@ int ip6_route_me_harder(struct net *net, struct sock *sk_partial, struct sk_buff
.flowi6_uid = sock_net_uid(net, sk),
.daddr = iph->daddr,
.saddr = iph->saddr,
+ .flowlabel = ip6_flowinfo(iph),
};
int err;
--
2.44.2
