diff options
| author | Florian Westphal | 2017-10-11 10:47:40 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso | 2017-10-24 18:01:49 +0200 |
| commit | c4f3db15958277c03d1c324894255ea3ecbf86e1 (patch) | |
| tree | 0652feccc1b2ecc9040bc6a051a8c41e96d620db /include/net/netfilter/nf_conntrack_l4proto.h | |
| parent | netfilter: nat: use test_and_clear_bit when deleting ct from bysource list (diff) | |
| download | kernel-qcow2-linux-c4f3db15958277c03d1c324894255ea3ecbf86e1.tar.gz kernel-qcow2-linux-c4f3db15958277c03d1c324894255ea3ecbf86e1.tar.xz kernel-qcow2-linux-c4f3db15958277c03d1c324894255ea3ecbf86e1.zip | |
netfilter: conntrack: add and use nf_l4proto_log_invalid
We currently pass down the l4 protocol to the conntrack ->packet()
function, but the only user of this is the debug info decision.
Same information can be derived from struct nf_conn.
As a first step, add and use a new log function for this, similar to
nf_ct_helper_log().
Add __cold annotation -- invalid packets should be infrequent so
gcc can consider all call paths that lead to such a function as
unlikely.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/net/netfilter/nf_conntrack_l4proto.h')
| -rw-r--r-- | include/net/netfilter/nf_conntrack_l4proto.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/net/netfilter/nf_conntrack_l4proto.h b/include/net/netfilter/nf_conntrack_l4proto.h index 738a0307a96b..6d79a061d360 100644 --- a/include/net/netfilter/nf_conntrack_l4proto.h +++ b/include/net/netfilter/nf_conntrack_l4proto.h @@ -152,8 +152,18 @@ extern const struct nla_policy nf_ct_port_nla_policy[]; #define LOG_INVALID(net, proto) \ ((net)->ct.sysctl_log_invalid == (proto) || \ (net)->ct.sysctl_log_invalid == IPPROTO_RAW) + +__printf(5, 6) __cold +void nf_l4proto_log_invalid(const struct sk_buff *skb, + struct net *net, + u16 pf, u8 protonum, + const char *fmt, ...); #else static inline int LOG_INVALID(struct net *net, int proto) { return 0; } + +static inline __printf(5, 6) __cold +void nf_l4proto_log_invalid(const struct sk_buff *skb, struct net *net, + u16 pf, u8 protonum, const char *fmt, ...) {} #endif /* CONFIG_SYSCTL */ #endif /*_NF_CONNTRACK_PROTOCOL_H*/ |