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| author | Florian Westphal <fw@strlen.de> | 2024-06-06 12:23:31 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2024-06-11 18:46:04 +0200 |
| commit | 6f8f132cc7bac2ac76911e47d5baa378aafda4cb (patch) | |
| tree | 77c52a319703eb834f5bb03a71879b7cc2b25e22 /net/ipv6 | |
| parent | 4e7aaa6b82d63e8ddcbfb56b4fd3d014ca586f10 (diff) | |
| download | linux-stable-6f8f132cc7bac2ac76911e47d5baa378aafda4cb.tar.gz linux-stable-6f8f132cc7bac2ac76911e47d5baa378aafda4cb.tar.bz2 linux-stable-6f8f132cc7bac2ac76911e47d5baa378aafda4cb.zip | |
netfilter: Use flowlabel flow key when re-routing mangled packets
'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@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/netfilter.c | 1 |
1 files changed, 1 insertions, 0 deletions
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; |