/* $NetBSD: print-pfsync.c,v 1.5 2023/08/17 20:19:40 christos Exp $ */
/* $OpenBSD: print-pfsync.c,v 1.30 2007/05/31 04:16:26 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.
*/
#include <sys/cdefs.h>
#ifndef lint
#if 0
static const char rcsid[] =
"@(#) $Header: /cvsroot/src/external/bsd/tcpdump/dist/print-pfsync.c,v 1.5 2023/08/17 20:19:40 christos Exp $";
#else
__RCSID("$NetBSD: print-pfsync.c,v 1.5 2023/08/17 20:19:40 christos Exp $");
#endif
#endif
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <sys/types.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/pfvar.h>
#include <net/if_pflog.h>
#include <netdissect-stdinc.h>
#include <sys/param.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <sys/file.h>
#include <sys/ioctl.h>
#ifdef __STDC__
struct rtentry;
#endif
#include <net/if.h>
#if 0
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#endif
#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 "netdissect.h"
#include "pfctl_parser.h"
#include "pfctl.h"
const char *pfsync_acts[] = { PFSYNC_ACTIONS };
static void pfsync_print(netdissect_options *, struct pfsync_header *, int);
void
pfsync_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h, const u_char *p)
{
u_int caplen = h->caplen;
ts_print(ndo, &h->ts);
if (caplen < PFSYNC_HDRLEN) {
ND_PRINT("[|pfsync]");
goto out;
}
pfsync_print(ndo, (struct pfsync_header *)p,
caplen - sizeof(struct pfsync_header));
out:
if (ndo->ndo_suppress_default_print)
ND_DEFAULTPRINT((const u_char *)h, caplen);
//putchar('\n');
}
void
pfsync_ip_print(netdissect_options *ndo, const u_char *bp, u_int len, const u_char *bp2 __unused)
{
struct pfsync_header *hdr = (struct pfsync_header *)bp;
if (len < PFSYNC_HDRLEN)
printf("[|pfsync]");
else
pfsync_print(ndo, hdr, (len - sizeof(struct pfsync_header)));
//putchar('\n');
}
static void
pfsync_print(netdissect_options *ndo, 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;
struct pfsync_state_bus *b;
struct pfsync_tdb *t;
int i, flags = 0, min, sec;
u_int64_t id;
if (ndo->ndo_eflag)
printf("PFSYNCv%d count %d: ",
hdr->version, hdr->count);
if (hdr->action < PFSYNC_ACT_MAX)
printf("%s %s:", (ndo->ndo_vflag == 0) ? "PFSYNC" : "",
pfsync_acts[hdr->action]);
else
printf("%s %d?:", (ndo->ndo_vflag == 0) ? "PFSYNC" : "",
hdr->action);
if (!ndo->ndo_vflag)
return;
if (ndo->ndo_vflag)
flags |= PF_OPT_VERBOSE;
if (ndo->ndo_vflag > 1)
flags |= PF_OPT_VERBOSE2;
if (!ndo->ndo_nflag)
flags |= PF_OPT_USEDNS;
switch (hdr->action) {
case PFSYNC_ACT_CLR:
if (sizeof(*c) <= len) {
c = (void *)((char *)hdr + PFSYNC_HDRLEN);
printf("\n\tcreatorid: %08x", htonl(c->creatorid));
if (c->ifname[0] != '\0')
printf(" interface: %s", c->ifname);
}
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++) {
putchar('\n');
print_state(s, flags);
if (ndo->ndo_vflag > 1 && hdr->action == PFSYNC_ACT_UPD)
printf(" updates: %d", s->updates);
}
break;
case PFSYNC_ACT_UPD_C:
for (i = 1, u = (void *)((char *)hdr + PFSYNC_HDRLEN);
i <= hdr->count && i * sizeof(*u) <= len; i++, u++) {
memcpy(&id, &u->id, sizeof(id));
printf("\n\tid: %" PRIu64 " creatorid: %08x",
be64toh(id), ntohl(u->creatorid));
if (ndo->ndo_vflag > 1)
printf(" updates: %d", u->updates);
}
break;
case PFSYNC_ACT_DEL_C:
for (i = 1, d = (void *)((char *)hdr + PFSYNC_HDRLEN);
i <= hdr->count && i * sizeof(*d) <= len; i++, d++) {
memcpy(&id, &d->id, sizeof(id));
printf("\n\tid: %" PRIu64 " creatorid: %08x",
be64toh(id), ntohl(d->creatorid));
}
break;
case PFSYNC_ACT_UREQ:
for (i = 1, r = (void *)((char *)hdr + PFSYNC_HDRLEN);
i <= hdr->count && i * sizeof(*r) <= len; i++, r++) {
memcpy(&id, &r->id, sizeof(id));
printf("\n\tid: %" PRIu64 " creatorid: %08x",
be64toh(id), ntohl(r->creatorid));
}
break;
case PFSYNC_ACT_BUS:
if (sizeof(*b) <= len) {
b = (void *)((char *)hdr + PFSYNC_HDRLEN);
printf("\n\tcreatorid: %08x", htonl(b->creatorid));
sec = b->endtime % 60;
b->endtime /= 60;
min = b->endtime % 60;
b->endtime /= 60;
printf(" age %.2u:%.2u:%.2u", b->endtime, min, sec);
switch (b->status) {
case PFSYNC_BUS_START:
printf(" status: start");
break;
case PFSYNC_BUS_END:
printf(" status: end");
break;
default:
printf(" status: ?");
break;
}
}
break;
case PFSYNC_ACT_TDB_UPD:
for (i = 1, t = (void *)((char *)hdr + PFSYNC_HDRLEN);
i <= hdr->count && i * sizeof(*t) <= len; i++, t++)
printf("\n\tspi: %08x rpl: %u cur_bytes: %" PRIu64,
htonl(t->spi), htonl(t->rpl),
be64toh(t->cur_bytes));
/* XXX add dst and sproto? */
break;
default:
break;
}
}
