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Simplify ipfw_bpf_mtap2(). No functional change.

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This commit is contained in:
Gleb Smirnoff 2019-03-14 22:20:48 +00:00
parent 08df8f82b8
commit 2d0232783c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=345160
1 changed files with 17 additions and 12 deletions
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29
sys/netpfil/ipfw/ip_fw_bpf.c
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@ -163,22 +163,27 @@ ipfwlog_clone_create(struct if_clone *ifc, int unit, caddr_t params)
void
ipfw_bpf_mtap2(void *data, u_int dlen, struct mbuf *m)
{
struct ifnet *logif;
LOGIF_RLOCK_TRACKER;
LOGIF_RLOCK();
if (dlen == ETHER_HDR_LEN) {
if (V_log_if == NULL) {
LOGIF_RUNLOCK();
return;
}
BPF_MTAP2(V_log_if, data, dlen, m);
} else if (dlen == PFLOG_HDRLEN) {
if (V_pflog_if == NULL) {
LOGIF_RUNLOCK();
return;
}
BPF_MTAP2(V_pflog_if, data, dlen, m);
switch (dlen) {
case (ETHER_HDR_LEN):
logif = V_log_if;
break;
case (PFLOG_HDRLEN):
logif = V_pflog_if;
break;
default:
#ifdef INVARIANTS
panic("%s: unsupported len %d", __func__, dlen);
#endif
logif = NULL;
}
if (logif != NULL)
BPF_MTAP2(logif, data, dlen, m);
LOGIF_RUNLOCK();
}