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/* $OpenBSD: print-pfsync.c,v 1.18 2003/12/28 21:06:46 mcbride Exp $ */
/*
* Copyright (c) 2002 Michael Shalayeff
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef lint
static const char rcsid[] =
"@(#) $Header: /cvs/OpenBSD/src/usr.sbin/tcpdump/print-pfsync.c,v 1.18 2003/12/28 21:06:46 mcbride Exp $";
#endif
#include <sys/param.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <sys/file.h>
#include <sys/ioctl.h>
#include <sys/mbuf.h>
#ifdef __STDC__
struct rtentry;
#endif
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <net/pfvar.h>
#include <net/if_pfsync.h>
#include <ctype.h>
#include <netdb.h>
#include <pcap.h>
#include <signal.h>
#include <stdio.h>
#include <string.h>
#include "interface.h"
#include "addrtoname.h"
#include "pfctl_parser.h"
#include "pfctl.h"
const char *pfsync_acts[] = { PFSYNC_ACTIONS };
void pfsync_print(struct pfsync_header *, int);
void
pfsync_if_print(u_char *user, const struct pcap_pkthdr *h,
register const u_char *p)
{
u_int caplen = h->caplen;
ts_print(&h->ts);
if (caplen < PFSYNC_HDRLEN) {
printf("[|pfsync]");
goto out;
}
pfsync_print((struct pfsync_header *)p,
caplen - sizeof(struct pfsync_header));
out:
if (xflag) {
default_print((const u_char *)h, caplen);
putchar('\n');
}
}
void
pfsync_ip_print(const u_char *bp, u_int len, const u_char *bp2)
{
const struct ip *ip = (const struct ip *)bp2;
struct pfsync_header *hdr = (struct pfsync_header *)bp;
if (len < PFSYNC_HDRLEN)
printf("[|pfsync]");
else
pfsync_print(hdr, (len - sizeof(struct pfsync_header)));
}
void
pfsync_print(struct pfsync_header *hdr, int len)
{
struct pfsync_state *s;
struct pfsync_state_upd *u;
struct pfsync_state_del *d;
struct pfsync_state_clr *c;
struct pfsync_state_upd_req *r;
int i, flags;
if (eflag)
printf("version %d count %d: ",
hdr->version, hdr->count);
if (hdr->action < PFSYNC_ACT_MAX)
printf("%s:\n", pfsync_acts[hdr->action]);
else
printf("%d?:\n", hdr->action);
flags = 0;
if (vflag)
flags |= PF_OPT_VERBOSE;
if (!nflag)
flags |= PF_OPT_USEDNS;
switch (hdr->action) {
case PFSYNC_ACT_CLR:
if (sizeof(*c) <= len) {
c = (void *)((char *)hdr + PFSYNC_HDRLEN);
printf("\tcreatorid: %08x\n", htonl(c->creatorid));
}
case PFSYNC_ACT_INS:
case PFSYNC_ACT_UPD:
case PFSYNC_ACT_DEL:
for (i = 1, s = (void *)((char *)hdr + PFSYNC_HDRLEN);
i <= hdr->count && i * sizeof(*s) <= len; i++, s++) {
struct pf_state st;
bzero(&st, sizeof(st));
st.id = s->id;
pf_state_host_ntoh(&s->lan, &st.lan);
pf_state_host_ntoh(&s->gwy, &st.gwy);
pf_state_host_ntoh(&s->ext, &st.ext);
pf_state_peer_ntoh(&s->src, &st.src);
pf_state_peer_ntoh(&s->dst, &st.dst);
st.rule.nr = ntohl(s->rule);
st.nat_rule.nr = ntohl(s->nat_rule);
st.anchor.nr = ntohl(s->anchor);
bcopy(&s->rt_addr, &st.rt_addr, sizeof(st.rt_addr));
st.creation = ntohl(s->creation);
st.expire = ntohl(s->expire);
st.packets[0] = ntohl(s->packets[0]);
st.packets[1] = ntohl(s->packets[1]);
st.bytes[0] = ntohl(s->bytes[0]);
st.bytes[1] = ntohl(s->bytes[1]);
st.creatorid = s->creatorid;
st.af = s->af;
st.proto = s->proto;
st.direction = s->direction;
st.log = s->log;
st.allow_opts = s->allow_opts;
st.sync_flags = s->sync_flags;
print_state(&st, flags);
}
break;
case PFSYNC_ACT_UPD_C:
for (i = 1, u = (void *)((char *)hdr + PFSYNC_HDRLEN);
i <= hdr->count && i * sizeof(*u) <= len; i++, d++) {
printf("\tid: %016llx creatorid: %08x\n",
betoh64(u->id), htonl(u->creatorid));
}
break;
case PFSYNC_ACT_DEL_C:
for (i = 1, d = (void *)((char *)hdr + PFSYNC_HDRLEN);
i <= hdr->count && i * sizeof(*d) <= len; i++, d++) {
printf("\tid: %016llx creatorid: %08x\n",
betoh64(d->id), htonl(d->creatorid));
}
break;
case PFSYNC_ACT_UREQ:
for (i = 1, r = (void *)((char *)hdr + PFSYNC_HDRLEN);
i <= hdr->count && i * sizeof(*r) <= len; i++, d++) {
printf("\tid: %016llx creatorid: %08x\n",
betoh64(r->id), htonl(r->creatorid));
}
break;
default:
break;
}
}
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