diff options
| author |   Florian Westphal <fw@strlen.de> | 2018-06-29 07:46:48 +0200 |
|---|---|---|
| committer |   Pablo Neira Ayuso <pablo@netfilter.org> | 2018-07-16 17:55:00 +0200 |
| commit | 8b3892ea8718920d29432328fe9544d89a429614 (patch) | |
| tree | 867f0314069695401b357bcaad285e1913756ee5 /net/netfilter/nf_conntrack_core.c | |
| parent | netfilter: conntrack: remove get_l4proto indirection from l3 protocol trackers (diff) | |
| download | linux-dev-8b3892ea8718920d29432328fe9544d89a429614.tar.xz linux-dev-8b3892ea8718920d29432328fe9544d89a429614.zip | |
netfilter: conntrack: avoid calls to l4proto invert_tuple
Handle the common cases (tcp, udp, etc). in the core and only
do the indirect call for the protocols that need it (GRE for instance).
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to '')
| -rw-r--r-- | net/netfilter/nf_conntrack_core.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index 0674c6e5bfed..92efce69b690 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -400,7 +400,13 @@ nf_ct_invert_tuple(struct nf_conntrack_tuple *inverse, inverse->dst.dir = !orig->dst.dir; inverse->dst.protonum = orig->dst.protonum; - return l4proto->invert_tuple(inverse, orig); + + if (unlikely(l4proto->invert_tuple)) + return l4proto->invert_tuple(inverse, orig); + + inverse->src.u.all = orig->dst.u.all; + inverse->dst.u.all = orig->src.u.all; + return true; } EXPORT_SYMBOL_GPL(nf_ct_invert_tuple); |