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Differential D19357 Diff 55001 sys/netpfil/ipfw/ip_fw_log.c

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sys/netpfil/ipfw/ip_fw_log.c

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#define TARG(k, f) IP_FW_ARG_TABLEARG(chain, k, f) #define TARG(k, f) IP_FW_ARG_TABLEARG(chain, k, f)
/* /*
* We enter here when we have a rule with O_LOG. * We enter here when we have a rule with O_LOG.
* XXX this function alone takes about 2Kbytes of code! * XXX this function alone takes about 2Kbytes of code!
*/ */
void void
ipfw_log(struct ip_fw_chain *chain, struct ip_fw *f, u_int hlen, ipfw_log(struct ip_fw_chain *chain, struct ip_fw *f, u_int hlen,
struct ip_fw_args *args, struct mbuf *m, struct ifnet *oif, struct ip_fw_args *args, u_short offset, uint32_t tablearg, struct ip *ip)
u_short offset, uint32_t tablearg, struct ip *ip)
{ {
char *action; char *action;
int limit_reached = 0; int limit_reached = 0;
char action2[92], proto[128], fragment[32]; char action2[92], proto[128], fragment[32];
if (V_fw_verbose == 0) { if (V_fw_verbose == 0) {
if (args->flags & IPFW_ARGS_ETHER) /* layer2, use orig hdr */ if (args->flags & IPFW_ARGS_LENMASK)
ipfw_bpf_mtap2(args->eh, ETHER_HDR_LEN, m); ipfw_bpf_tap(args->mem, IPFW_ARGS_LENGTH(args->flags));
else if (args->flags & IPFW_ARGS_ETHER)
/* layer2, use orig hdr */
ipfw_bpf_mtap(args->m);
else { else {
/* Add fake header. Later we will store /* Add fake header. Later we will store
* more info in the header. * more info in the header.
*/ */
if (ip->ip_v == 4) if (ip->ip_v == 4)
ipfw_bpf_mtap2("DDDDDDSSSSSS\x08\x00", ipfw_bpf_mtap2("DDDDDDSSSSSS\x08\x00",
ETHER_HDR_LEN, m); ETHER_HDR_LEN, args->m);
else if (ip->ip_v == 6) else if (ip->ip_v == 6)
ipfw_bpf_mtap2("DDDDDDSSSSSS\x86\xdd", ipfw_bpf_mtap2("DDDDDDSSSSSS\x86\xdd",
ETHER_HDR_LEN, m); ETHER_HDR_LEN, args->m);
else else
/* Obviously bogus EtherType. */ /* Obviously bogus EtherType. */
ipfw_bpf_mtap2("DDDDDDSSSSSS\xff\xff", ipfw_bpf_mtap2("DDDDDDSSSSSS\xff\xff",
ETHER_HDR_LEN, m); ETHER_HDR_LEN, args->m);
} }
return; return;
} }
/* the old 'log' function */ /* the old 'log' function */
fragment[0] = '\0'; fragment[0] = '\0';
proto[0] = '\0'; proto[0] = '\0';
if (f == NULL) { /* bogus pkt */ if (f == NULL) { /* bogus pkt */
▲ Show 20 Lines • Show All 266 Lines • ▼ Show 20 Lines#endif
snprintf(SNPARGS(fragment, 0), snprintf(SNPARGS(fragment, 0),
" (frag %d:%d@%d%s)", " (frag %d:%d@%d%s)",
ntohs(ip->ip_id), iplen - (ip->ip_hl << 2), ntohs(ip->ip_id), iplen - (ip->ip_hl << 2),
offset << 3, offset << 3,
(ipoff & IP_MF) ? "+" : ""); (ipoff & IP_MF) ? "+" : "");
} }
} }
#ifdef __FreeBSD__ #ifdef __FreeBSD__
if (oif || m->m_pkthdr.rcvif) log(LOG_SECURITY | LOG_INFO, "ipfw: %d %s %s %s via %s%s\n",
log(LOG_SECURITY | LOG_INFO, f ? f->rulenum : -1, action, proto,
"ipfw: %d %s %s %s via %s%s\n", args->flags & IPFW_ARGS_OUT ? "out" : "in", args->ifp->if_xname,
f ? f->rulenum : -1,
action, proto, oif ? "out" : "in",
oif ? oif->if_xname : m->m_pkthdr.rcvif->if_xname,
fragment); fragment);
else #else
log(LOG_SECURITY | LOG_INFO, "ipfw: %d %s %s [no if info]%s\n",
f ? f->rulenum : -1, action, proto, fragment);
#endif #endif
log(LOG_SECURITY | LOG_INFO,
"ipfw: %d %s %s [no if info]%s\n",
f ? f->rulenum : -1,
action, proto, fragment);
if (limit_reached) if (limit_reached)
log(LOG_SECURITY | LOG_NOTICE, log(LOG_SECURITY | LOG_NOTICE,
"ipfw: limit %d reached on entry %d\n", "ipfw: limit %d reached on entry %d\n",
limit_reached, f ? f->rulenum : -1); limit_reached, f ? f->rulenum : -1);
} }
/* end of file */ /* end of file */