1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
|
/* $OpenBSD: print-pfsync.c,v 1.29 2005/11/04 08:24:15 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 1.29 2005/11/04 08:24:15 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)
{
struct pfsync_header *hdr = (struct pfsync_header *)bp;
struct ip *ip = (struct ip *)bp2;
if (vflag)
printf("%s > %s: ", ipaddr_string(&ip->ip_src),
ipaddr_string(&ip->ip_dst));
else
printf("%s: ", ipaddr_string(&ip->ip_src));
if (len < PFSYNC_HDRLEN)
printf("[|pfsync]");
else
pfsync_print(hdr, (len - sizeof(struct pfsync_header)));
putchar('\n');
}
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;
struct pfsync_state_bus *b;
struct pfsync_tdb *t;
int i, flags = 0, min, sec;
u_int64_t id;
if (eflag)
printf("PFSYNCv%d count %d: ",
hdr->version, hdr->count);
if (hdr->action < PFSYNC_ACT_MAX)
printf("%s:", pfsync_acts[hdr->action]);
else
printf("%d?:", hdr->action);
if (vflag)
flags |= PF_OPT_VERBOSE;
if (vflag > 1)
flags |= PF_OPT_VERBOSE2;
if (!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++) {
struct pf_state st;
bzero(&st, sizeof(st));
bcopy(&s->id, &st.id, sizeof(st.id));
strlcpy(st.u.ifname, s->ifname, sizeof(st.u.ifname));
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);
pf_state_counter_ntoh(s->packets[0], st.packets[0]);
pf_state_counter_ntoh(s->packets[1], st.packets[1]);
pf_state_counter_ntoh(s->bytes[0], st.bytes[0]);
pf_state_counter_ntoh(s->bytes[1], st.bytes[1]);
st.creatorid = s->creatorid;
st.af = s->af;
st.proto = s->proto;
st.direction = s->direction;
st.log = s->log;
st.timeout = s->timeout;
st.allow_opts = s->allow_opts;
st.sync_flags = s->sync_flags;
putchar('\n');
print_state(&st, flags);
if (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++) {
bcopy(&u->id, &id, sizeof(id));
printf("\n\tid: %016llx creatorid: %08x",
betoh64(id), ntohl(u->creatorid));
if (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++) {
bcopy(&d->id, &id, sizeof(id));
printf("\n\tid: %016llx creatorid: %08x",
betoh64(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++) {
bcopy(&r->id, &id, sizeof(id));
printf("\n\tid: %016llx creatorid: %08x",
betoh64(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: %llu",
htonl(t->spi), htonl(t->rpl),
betoh64(t->cur_bytes));
/* XXX add dst and sproto? */
break;
default:
break;
}
}
|
