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Since r209216 bpf(4) searches for mbuf_tags(9) and thus will not work with

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a stub m_hdr instead of a full mbuf.

PR:		kern/148050
This commit is contained in:
glebius 2010-07-08 13:07:40 +00:00
parent 9f82de4aef
commit 1794f86429
1 changed files with 8 additions and 6 deletions
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14
sys/netinet/ipfw/ip_fw_log.c
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@ -152,22 +152,24 @@ ipfw_log(struct ip_fw *f, u_int hlen, struct ip_fw_args *args,
if (V_fw_verbose == 0) {
#ifndef WITHOUT_BPF
struct m_hdr mh;
struct mbuf m0;
if (log_if == NULL || log_if->if_bpf == NULL)
return;
/* BPF treats the "mbuf" as read-only */
mh.mh_next = m;
mh.mh_len = ETHER_HDR_LEN;
bzero(&m0, sizeof(struct mbuf));
m0.m_hdr.mh_next = m;
m0.m_hdr.mh_len = ETHER_HDR_LEN;
if (args->eh) { /* layer2, use orig hdr */
mh.mh_data = (char *)args->eh;
m0.m_hdr.mh_data = (char *)args->eh;
} else {
/* add fake header. Later we will store
* more info in the header
*/
mh.mh_data = "DDDDDDSSSSSS\x08\x00";
m0.m_hdr.mh_data = "DDDDDDSSSSSS\x08\x00";
}
BPF_MTAP(log_if, (struct mbuf *)&mh);
BPF_MTAP(log_if, &m0);
#endif /* !WITHOUT_BPF */
return;
}