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netfilter: nf_tables: fix trace of matching non-terminal rule

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Add the corresponding trace if we have a full match in a non-terminal
rule. Note that the traces will look slightly different than in
x_tables since the log message after all expressions have been
evaluated (contrary to x_tables, that emits it before the target
action). This manifests in two differences in nf_tables wrt. x_tables:

1) The rule that enables the tracing is included in the trace.

2) If the rule emits some log message, that is shown before the
   trace log message.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso 2014-05-15 17:18:26 +02:00
parent 7e9bc10db2
commit 3b084e99a3
1 changed files with 3 additions and 1 deletions
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4
net/netfilter/nf_tables_core.c
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@ -144,8 +144,10 @@ next_rule:
switch (data[NFT_REG_VERDICT].verdict) {
case NFT_BREAK:
data[NFT_REG_VERDICT].verdict = NFT_CONTINUE;
/* fall through */
continue;
case NFT_CONTINUE:
if (unlikely(pkt->skb->nf_trace))
nft_trace_packet(pkt, chain, rulenum, NFT_TRACE_RULE);
continue;
}
break;