diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2017-11-27 22:29:52 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2018-01-08 18:01:26 +0100 |
| commit | 3f87c08c615f567799b426aff0341ea8010a0ebb (patch) | |
| tree | 47a33546f33fb7792ab0e5c2ed647c1a80f7a4f5 /net/netfilter/utils.c | |
| parent | 7db9a51e0f9931446ed4231feb1040ed5134fc60 (diff) | |
netfilter: move route indirection to struct nf_ipv6_ops
We cannot make a direct call to nf_ip6_route() because that would result
in autoloading the 'ipv6' module because of symbol dependencies.
Therefore, define route indirection in nf_ipv6_ops where this really
belongs to.
For IPv4, we can indeed make a direct function call, which is faster,
given IPv4 is built-in in the networking code by default. Still,
CONFIG_INET=n and CONFIG_NETFILTER=y is possible, so define empty inline
stub for IPv4 in such case.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/utils.c')
| -rw-r--r-- | net/netfilter/utils.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/net/netfilter/utils.c b/net/netfilter/utils.c index ca6d8d62496d..45c22418c955 100644 --- a/net/netfilter/utils.c +++ b/net/netfilter/utils.c @@ -48,3 +48,24 @@ __sum16 nf_checksum_partial(struct sk_buff *skb, unsigned int hook, return csum; } EXPORT_SYMBOL_GPL(nf_checksum_partial); + +int nf_route(struct net *net, struct dst_entry **dst, struct flowi *fl, + bool strict, unsigned short family) +{ + const struct nf_ipv6_ops *v6ops; + int ret = 0; + + switch (family) { + case AF_INET: + ret = nf_ip_route(net, dst, fl, strict); + break; + case AF_INET6: + v6ops = rcu_dereference(nf_ipv6_ops); + if (v6ops) + ret = v6ops->route(net, dst, fl, strict); + break; + } + + return ret; +} +EXPORT_SYMBOL_GPL(nf_route); |