diff options
| author | Phil Sutter <phil@nwl.cc> | 2018-08-20 15:30:03 +0200 |
|---|---|---|
| committer | Florian Westphal <fw@strlen.de> | 2018-08-21 17:57:16 +0200 |
| commit | 5ee03e6df41727652e0dc6ffaef8411b8840d812 (patch) | |
| tree | e459442cfb4035a6bba51db4bd7c49ea344cb14f /iptables/nft-ipv6.c | |
| parent | 37b68b2bc903112a74545c7f4a49c89e889582a9 (diff) | |
xtables: Use meta l4proto for -p match
Use of payload expression to match against IPv6 nexthdr field does not
work if extension headers are present. A simple example for that is
matching for fragmented icmpv6 traffic. Instead, generate a 'meta
l4proto' expression which works even if extension headers are present.
For consistency, apply the same change to iptables-nft as well.
No adjustment to reverse path required as the needed bits were added by
commit 6ea7579e6fe24 ("nft: decode meta l4proto") already.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Florian Westphal <fw@strlen.de>
Diffstat (limited to 'iptables/nft-ipv6.c')
| -rw-r--r-- | iptables/nft-ipv6.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/iptables/nft-ipv6.c b/iptables/nft-ipv6.c index dd23557c..48a7cefe 100644 --- a/iptables/nft-ipv6.c +++ b/iptables/nft-ipv6.c @@ -44,8 +44,7 @@ static int nft_ipv6_add(struct nftnl_rule *r, void *data) if (cs->fw6.ipv6.proto != 0) { op = nft_invflags2cmp(cs->fw6.ipv6.invflags, XT_INV_PROTO); - add_proto(r, offsetof(struct ip6_hdr, ip6_nxt), 1, - cs->fw6.ipv6.proto, op); + add_l4proto(r, cs->fw6.ipv6.proto, op); } if (!IN6_IS_ADDR_UNSPECIFIED(&cs->fw6.ipv6.src)) { |