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author | Florian Westphal <fw@strlen.de> | 2017-10-11 10:47:41 +0200 |
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committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2017-10-24 18:01:49 +0200 |
commit | 3d0b527bc9dc0e8c4428eb1a98d4cd27bd1114c7 (patch) | |
tree | f86b25d3345cfc1763cac0be4278b26c20051474 /net/netfilter/nf_conntrack_proto.c | |
parent | c4f3db15958277c03d1c324894255ea3ecbf86e1 (diff) | |
download | linux-3d0b527bc9dc0e8c4428eb1a98d4cd27bd1114c7.tar.gz linux-3d0b527bc9dc0e8c4428eb1a98d4cd27bd1114c7.tar.bz2 linux-3d0b527bc9dc0e8c4428eb1a98d4cd27bd1114c7.zip |
netfilter: conntrack: add and use nf_ct_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.
Add a wrapper for the previous patch that extracs the information
from nf_conn and passes it to nf_l4proto_log_invalid().
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/nf_conntrack_proto.c')
-rw-r--r-- | net/netfilter/nf_conntrack_proto.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c index bcd3ee270d75..83f739e9dc08 100644 --- a/net/netfilter/nf_conntrack_proto.c +++ b/net/netfilter/nf_conntrack_proto.c @@ -87,6 +87,29 @@ void nf_l4proto_log_invalid(const struct sk_buff *skb, va_end(args); } EXPORT_SYMBOL_GPL(nf_l4proto_log_invalid); + +__printf(3, 4) +void nf_ct_l4proto_log_invalid(const struct sk_buff *skb, + const struct nf_conn *ct, + const char *fmt, ...) +{ + struct va_format vaf; + struct net *net; + va_list args; + + net = nf_ct_net(ct); + if (likely(net->ct.sysctl_log_invalid == 0)) + return; + + va_start(args, fmt); + vaf.fmt = fmt; + vaf.va = &args; + + nf_l4proto_log_invalid(skb, net, nf_ct_l3num(ct), + nf_ct_protonum(ct), "%pV", &vaf); + va_end(args); +} +EXPORT_SYMBOL_GPL(nf_ct_l4proto_log_invalid); #endif const struct nf_conntrack_l4proto * |