1 |
|
|
/* $OpenBSD: ipsecctl.c,v 1.82 2017/04/19 15:59:38 bluhm Exp $ */ |
2 |
|
|
/* |
3 |
|
|
* Copyright (c) 2004, 2005 Hans-Joerg Hoexer <hshoexer@openbsd.org> |
4 |
|
|
* |
5 |
|
|
* Permission to use, copy, modify, and distribute this software for any |
6 |
|
|
* purpose with or without fee is hereby granted, provided that the above |
7 |
|
|
* copyright notice and this permission notice appear in all copies. |
8 |
|
|
* |
9 |
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
10 |
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
11 |
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
12 |
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
13 |
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
14 |
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
15 |
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
16 |
|
|
*/ |
17 |
|
|
|
18 |
|
|
#include <sys/socket.h> |
19 |
|
|
#include <sys/sysctl.h> |
20 |
|
|
#include <sys/queue.h> |
21 |
|
|
#include <sys/stat.h> |
22 |
|
|
#include <net/pfkeyv2.h> |
23 |
|
|
#include <net/route.h> |
24 |
|
|
#include <netinet/in.h> |
25 |
|
|
#include <netinet/ip_ipsp.h> |
26 |
|
|
#include <arpa/inet.h> |
27 |
|
|
|
28 |
|
|
#include <err.h> |
29 |
|
|
#include <errno.h> |
30 |
|
|
#include <fcntl.h> |
31 |
|
|
#include <netdb.h> |
32 |
|
|
#include <stdio.h> |
33 |
|
|
#include <stdlib.h> |
34 |
|
|
#include <string.h> |
35 |
|
|
#include <unistd.h> |
36 |
|
|
|
37 |
|
|
#include "ipsecctl.h" |
38 |
|
|
#include "pfkey.h" |
39 |
|
|
|
40 |
|
|
int ipsecctl_rules(char *, int); |
41 |
|
|
FILE *ipsecctl_fopen(const char *, const char *); |
42 |
|
|
int ipsecctl_commit(int, struct ipsecctl *); |
43 |
|
|
int ipsecctl_add_rule(struct ipsecctl *, struct ipsec_rule *); |
44 |
|
|
void ipsecctl_free_rule(struct ipsec_rule *); |
45 |
|
|
void ipsecctl_print_addr(struct ipsec_addr_wrap *); |
46 |
|
|
void ipsecctl_print_proto(u_int8_t); |
47 |
|
|
void ipsecctl_print_port(u_int16_t, const char *); |
48 |
|
|
void ipsecctl_print_key(struct ipsec_key *); |
49 |
|
|
void ipsecctl_print_flow(struct ipsec_rule *, int); |
50 |
|
|
void ipsecctl_print_sa(struct ipsec_rule *, int); |
51 |
|
|
void ipsecctl_print_sabundle(struct ipsec_rule *, int); |
52 |
|
|
int ipsecctl_flush(int); |
53 |
|
|
void ipsecctl_get_rules(struct ipsecctl *); |
54 |
|
|
void ipsecctl_print_title(char *); |
55 |
|
|
void ipsecctl_show_flows(int); |
56 |
|
|
void ipsecctl_show_sas(int); |
57 |
|
|
int ipsecctl_monitor(int); |
58 |
|
|
void usage(void); |
59 |
|
|
const char *ipsecctl_lookup_option(char *, const char **); |
60 |
|
|
static int unmask(struct ipsec_addr *, sa_family_t); |
61 |
|
|
int sacompare(const void *, const void *); |
62 |
|
|
|
63 |
|
|
const char *showopt; |
64 |
|
|
char *isakmpd_fifo = "/var/run/isakmpd.fifo"; |
65 |
|
|
|
66 |
|
|
int first_title = 1; |
67 |
|
|
|
68 |
|
|
static const char *showopt_list[] = { |
69 |
|
|
"flow", "sa", "all", NULL |
70 |
|
|
}; |
71 |
|
|
|
72 |
|
|
static const char *direction[] = {"?", "in", "out"}; |
73 |
|
|
static const char *flowtype[] = {"?", "use", "acquire", "require", "deny", |
74 |
|
|
"bypass", "dontacq"}; |
75 |
|
|
static const char *satype[] = {"?", "esp", "ah", "ipcomp", "tcpmd5", "ipip"}; |
76 |
|
|
static const char *tmode[] = {"?", "transport", "tunnel"}; |
77 |
|
|
static const char *auth[] = {"?", "psk", "rsa"}; |
78 |
|
|
|
79 |
|
|
struct sad { |
80 |
|
|
struct sadb_msg *sad_msg; |
81 |
|
|
u_int32_t sad_spi; |
82 |
|
|
}; |
83 |
|
|
|
84 |
|
|
int |
85 |
|
|
sacompare(const void *va, const void *vb) |
86 |
|
|
{ |
87 |
|
|
const struct sad *a = va, *b = vb; |
88 |
|
|
|
89 |
|
|
if (a->sad_spi < b->sad_spi) |
90 |
|
|
return (-1); |
91 |
|
|
if (a->sad_spi > b->sad_spi) |
92 |
|
|
return (1); |
93 |
|
|
return (0); |
94 |
|
|
} |
95 |
|
|
|
96 |
|
|
int |
97 |
|
|
ipsecctl_rules(char *filename, int opts) |
98 |
|
|
{ |
99 |
|
400 |
struct ipsecctl ipsec; |
100 |
|
|
struct ipsec_rule *rp; |
101 |
|
|
int action, error = 0; |
102 |
|
|
|
103 |
|
200 |
bzero(&ipsec, sizeof(ipsec)); |
104 |
|
200 |
ipsec.opts = opts; |
105 |
|
200 |
TAILQ_INIT(&ipsec.rule_queue); |
106 |
|
200 |
TAILQ_INIT(&ipsec.bundle_queue); |
107 |
|
|
|
108 |
✓✓ |
200 |
if (parse_rules(filename, &ipsec) < 0) { |
109 |
|
15 |
warnx("Syntax error in config file: ipsec rules not loaded"); |
110 |
|
|
error = 1; |
111 |
|
15 |
} else { |
112 |
✓✓ |
185 |
if (opts & IPSECCTL_OPT_DELETE) |
113 |
|
40 |
action = ACTION_DELETE; |
114 |
|
|
else |
115 |
|
|
action = ACTION_ADD; |
116 |
|
|
|
117 |
✗✓ |
185 |
if ((opts & IPSECCTL_OPT_NOACTION) == 0) |
118 |
|
|
error = ipsecctl_commit(action, &ipsec); |
119 |
|
|
|
120 |
|
|
} |
121 |
|
|
|
122 |
|
|
/* This also frees the rules in ipsec.bundle_queue. */ |
123 |
✓✓ |
1356 |
while ((rp = TAILQ_FIRST(&ipsec.rule_queue))) { |
124 |
✓✓ |
1548 |
TAILQ_REMOVE(&ipsec.rule_queue, rp, rule_entry); |
125 |
|
578 |
ipsecctl_free_rule(rp); |
126 |
|
|
} |
127 |
|
|
|
128 |
|
200 |
return (error); |
129 |
|
200 |
} |
130 |
|
|
|
131 |
|
|
FILE * |
132 |
|
|
ipsecctl_fopen(const char *name, const char *mode) |
133 |
|
|
{ |
134 |
|
|
struct stat st; |
135 |
|
|
FILE *fp; |
136 |
|
|
|
137 |
|
|
fp = fopen(name, mode); |
138 |
|
|
if (fp == NULL) |
139 |
|
|
return (NULL); |
140 |
|
|
|
141 |
|
|
if (fstat(fileno(fp), &st)) { |
142 |
|
|
fclose(fp); |
143 |
|
|
return (NULL); |
144 |
|
|
} |
145 |
|
|
if (S_ISDIR(st.st_mode)) { |
146 |
|
|
fclose(fp); |
147 |
|
|
errno = EISDIR; |
148 |
|
|
return (NULL); |
149 |
|
|
} |
150 |
|
|
return (fp); |
151 |
|
|
} |
152 |
|
|
|
153 |
|
|
int |
154 |
|
|
ipsecctl_commit(int action, struct ipsecctl *ipsec) |
155 |
|
|
{ |
156 |
|
|
struct ipsec_rule *rp; |
157 |
|
|
int ret = 0; |
158 |
|
|
|
159 |
|
|
if (pfkey_init() == -1) |
160 |
|
|
errx(1, "ipsecctl_commit: failed to open PF_KEY socket"); |
161 |
|
|
|
162 |
|
|
TAILQ_FOREACH(rp, &ipsec->rule_queue, rule_entry) { |
163 |
|
|
if (rp->type & RULE_IKE) { |
164 |
|
|
if (ike_ipsec_establish(action, rp, isakmpd_fifo) == |
165 |
|
|
-1) { |
166 |
|
|
warnx("failed to %s ike rule %d", |
167 |
|
|
action == ACTION_DELETE ? "delete" : "add", |
168 |
|
|
rp->nr); |
169 |
|
|
ret = 2; |
170 |
|
|
} |
171 |
|
|
} else { |
172 |
|
|
if (pfkey_ipsec_establish(action, rp) == -1) { |
173 |
|
|
warnx("failed to %s rule %d", |
174 |
|
|
action == ACTION_DELETE ? "delete" : "add", |
175 |
|
|
rp->nr); |
176 |
|
|
ret = 2; |
177 |
|
|
} |
178 |
|
|
} |
179 |
|
|
} |
180 |
|
|
|
181 |
|
|
return (ret); |
182 |
|
|
} |
183 |
|
|
|
184 |
|
|
int |
185 |
|
|
ipsecctl_add_rule(struct ipsecctl *ipsec, struct ipsec_rule *r) |
186 |
|
|
{ |
187 |
|
1156 |
TAILQ_INSERT_TAIL(&ipsec->rule_queue, r, rule_entry); |
188 |
|
|
|
189 |
✓✗✓✗
|
1156 |
if ((ipsec->opts & IPSECCTL_OPT_VERBOSE) && !(ipsec->opts & |
190 |
|
|
IPSECCTL_OPT_SHOW)) |
191 |
|
578 |
ipsecctl_print_rule(r, ipsec->opts); |
192 |
|
|
|
193 |
|
578 |
return (0); |
194 |
|
|
} |
195 |
|
|
|
196 |
|
|
void |
197 |
|
|
ipsecctl_free_rule(struct ipsec_rule *rp) |
198 |
|
|
{ |
199 |
✓✓ |
1858 |
if (rp->src) { |
200 |
|
917 |
free(rp->src->name); |
201 |
|
917 |
free(rp->src); |
202 |
|
917 |
} |
203 |
✓✗ |
929 |
if (rp->dst) { |
204 |
|
929 |
free(rp->dst->name); |
205 |
|
929 |
free(rp->dst); |
206 |
|
929 |
} |
207 |
✓✓ |
929 |
if (rp->dst2) { |
208 |
|
12 |
free(rp->dst2->name); |
209 |
|
12 |
free(rp->dst2); |
210 |
|
12 |
} |
211 |
✓✓ |
929 |
if (rp->local) { |
212 |
|
25 |
free(rp->local->name); |
213 |
|
25 |
free(rp->local); |
214 |
|
25 |
} |
215 |
✓✓ |
929 |
if (rp->peer) { |
216 |
|
326 |
free(rp->peer->name); |
217 |
|
326 |
free(rp->peer); |
218 |
|
326 |
} |
219 |
✓✓ |
929 |
if (rp->auth) { |
220 |
|
579 |
free(rp->auth->srcid); |
221 |
|
579 |
free(rp->auth->dstid); |
222 |
|
579 |
free(rp->auth); |
223 |
|
579 |
} |
224 |
✓✓ |
929 |
if (rp->ikeauth) { |
225 |
|
313 |
free(rp->ikeauth->string); |
226 |
|
313 |
free(rp->ikeauth); |
227 |
|
313 |
} |
228 |
|
929 |
free(rp->xfs); |
229 |
|
929 |
free(rp->p1xfs); |
230 |
|
929 |
free(rp->p2xfs); |
231 |
|
929 |
free(rp->p1life); |
232 |
|
929 |
free(rp->p2life); |
233 |
✓✓ |
929 |
if (rp->authkey) { |
234 |
|
265 |
free(rp->authkey->data); |
235 |
|
265 |
free(rp->authkey); |
236 |
|
265 |
} |
237 |
✓✓ |
929 |
if (rp->enckey) { |
238 |
|
135 |
free(rp->enckey->data); |
239 |
|
135 |
free(rp->enckey); |
240 |
|
135 |
} |
241 |
|
929 |
free(rp->p1name); |
242 |
|
929 |
free(rp->p2name); |
243 |
|
929 |
free(rp->p2lid); |
244 |
|
929 |
free(rp->p2nid); |
245 |
|
929 |
free(rp->p2rid); |
246 |
|
929 |
free(rp); |
247 |
|
929 |
} |
248 |
|
|
|
249 |
|
|
void |
250 |
|
|
ipsecctl_print_addr(struct ipsec_addr_wrap *ipa) |
251 |
|
|
{ |
252 |
|
|
int bits; |
253 |
|
1988 |
char buf[NI_MAXHOST]; |
254 |
|
|
|
255 |
✗✓ |
994 |
if (ipa == NULL) { |
256 |
|
|
printf("?"); |
257 |
|
|
return; |
258 |
|
|
} |
259 |
✗✓ |
994 |
if (inet_ntop(ipa->af, &ipa->address, buf, sizeof(buf)) == NULL) |
260 |
|
|
printf("?"); |
261 |
|
|
else |
262 |
|
994 |
printf("%s", buf); |
263 |
|
|
|
264 |
|
994 |
bits = unmask(&ipa->mask, ipa->af); |
265 |
✓✓ |
994 |
if (bits != (ipa->af == AF_INET ? 32 : 128)) |
266 |
|
91 |
printf("/%d", bits); |
267 |
|
1988 |
} |
268 |
|
|
|
269 |
|
|
void |
270 |
|
|
ipsecctl_print_proto(u_int8_t proto) |
271 |
|
|
{ |
272 |
|
|
struct protoent *p; |
273 |
|
|
|
274 |
✓✗ |
36 |
if ((p = getprotobynumber(proto)) != NULL) |
275 |
|
18 |
printf("%s", p->p_name); |
276 |
|
|
else |
277 |
|
|
printf("%u", proto); |
278 |
|
18 |
} |
279 |
|
|
|
280 |
|
|
void |
281 |
|
|
ipsecctl_print_port(u_int16_t port, const char *proto) |
282 |
|
|
{ |
283 |
|
|
struct servent *s; |
284 |
|
|
|
285 |
✓✓ |
16 |
if ((s = getservbyport(port, proto)) != NULL) |
286 |
|
6 |
printf("%s", s->s_name); |
287 |
|
|
else |
288 |
|
2 |
printf("%u", ntohs(port)); |
289 |
|
8 |
} |
290 |
|
|
|
291 |
|
|
void |
292 |
|
|
ipsecctl_print_key(struct ipsec_key *key) |
293 |
|
|
{ |
294 |
|
|
int i; |
295 |
|
|
|
296 |
✓✓ |
12998 |
for (i = 0; i < (int)key->len; i++) |
297 |
|
6112 |
printf("%02x", key->data[i]); |
298 |
|
258 |
} |
299 |
|
|
|
300 |
|
|
void |
301 |
|
|
ipsecctl_print_flow(struct ipsec_rule *r, int opts) |
302 |
|
|
{ |
303 |
|
396 |
printf("flow %s %s", satype[r->satype], direction[r->direction]); |
304 |
|
|
|
305 |
✓✓ |
198 |
if (r->proto) { |
306 |
|
18 |
printf(" proto "); |
307 |
|
18 |
ipsecctl_print_proto(r->proto); |
308 |
|
18 |
} |
309 |
|
198 |
printf(" from "); |
310 |
|
198 |
ipsecctl_print_addr(r->src); |
311 |
✓✓ |
198 |
if (r->sport) { |
312 |
|
4 |
printf(" port "); |
313 |
|
8 |
ipsecctl_print_port(r->sport, |
314 |
|
4 |
r->proto == IPPROTO_TCP ? "tcp" : "udp"); |
315 |
|
4 |
} |
316 |
|
198 |
printf(" to "); |
317 |
|
198 |
ipsecctl_print_addr(r->dst); |
318 |
✓✓ |
198 |
if (r->dport) { |
319 |
|
4 |
printf(" port "); |
320 |
|
8 |
ipsecctl_print_port(r->dport, |
321 |
|
4 |
r->proto == IPPROTO_TCP ? "tcp" : "udp"); |
322 |
|
4 |
} |
323 |
✓✓ |
198 |
if (r->local) { |
324 |
|
12 |
printf(" local "); |
325 |
|
12 |
ipsecctl_print_addr(r->local); |
326 |
|
12 |
} |
327 |
✓✓ |
198 |
if (r->peer) { |
328 |
|
174 |
printf(" peer "); |
329 |
|
174 |
ipsecctl_print_addr(r->peer); |
330 |
|
174 |
} |
331 |
✓✓ |
198 |
if (r->auth) { |
332 |
✓✓ |
176 |
if (r->auth->srcid) |
333 |
|
32 |
printf(" srcid %s", r->auth->srcid); |
334 |
✓✓ |
176 |
if (r->auth->dstid) |
335 |
|
32 |
printf(" dstid %s", r->auth->dstid); |
336 |
✗✓ |
176 |
if (r->auth->type > 0) |
337 |
|
|
printf(" %s", auth[r->auth->type]); |
338 |
|
|
} |
339 |
|
198 |
printf(" type %s", flowtype[r->flowtype]); |
340 |
|
198 |
printf("\n"); |
341 |
|
198 |
} |
342 |
|
|
|
343 |
|
|
/* ARGSUSED1 */ |
344 |
|
|
void |
345 |
|
|
ipsecctl_print_sa(struct ipsec_rule *r, int opts) |
346 |
|
|
{ |
347 |
|
388 |
printf("%s ", satype[r->satype]); |
348 |
|
|
/* tunnel/transport is only meaningful for esp/ah/ipcomp */ |
349 |
✓✓✓✓
|
382 |
if (r->satype != IPSEC_TCPMD5 && r->satype != IPSEC_IPIP) |
350 |
|
182 |
printf("%s ", tmode[r->tmode]); |
351 |
|
194 |
printf("from "); |
352 |
|
194 |
ipsecctl_print_addr(r->src); |
353 |
|
194 |
printf(" to "); |
354 |
|
194 |
ipsecctl_print_addr(r->dst); |
355 |
|
194 |
printf(" spi 0x%08x", r->spi); |
356 |
|
|
|
357 |
✓✓ |
194 |
if (r->satype != IPSEC_TCPMD5) { |
358 |
✓✗✓✓
|
376 |
if (r->xfs && r->xfs->authxf) |
359 |
|
166 |
printf(" auth %s", r->xfs->authxf->name); |
360 |
✓✗✓✓
|
376 |
if (r->xfs && r->xfs->encxf) |
361 |
|
100 |
printf(" enc %s", r->xfs->encxf->name); |
362 |
✓✗✓✓
|
376 |
if (r->xfs && r->xfs->compxf) |
363 |
|
16 |
printf(" comp %s", r->xfs->compxf->name); |
364 |
|
|
} |
365 |
✓✓✓✗
|
366 |
if (r->authkey && (opts & IPSECCTL_OPT_SHOWKEY)) { |
366 |
✓✓ |
172 |
if (r->satype == IPSEC_TCPMD5) |
367 |
|
6 |
printf(" "); |
368 |
|
|
else |
369 |
|
166 |
printf(" \\\n\t"); |
370 |
|
172 |
printf("authkey 0x"); |
371 |
|
172 |
ipsecctl_print_key(r->authkey); |
372 |
|
172 |
} |
373 |
✓✓✓✗
|
280 |
if (r->enckey && (opts & IPSECCTL_OPT_SHOWKEY)) { |
374 |
✗✓ |
86 |
if (r->satype == IPSEC_TCPMD5) |
375 |
|
|
printf(" "); |
376 |
|
|
else |
377 |
|
86 |
printf(" \\\n\t"); |
378 |
|
86 |
printf("enckey 0x"); |
379 |
|
86 |
ipsecctl_print_key(r->enckey); |
380 |
|
86 |
} |
381 |
|
194 |
printf("\n"); |
382 |
|
194 |
} |
383 |
|
|
|
384 |
|
|
void |
385 |
|
|
ipsecctl_print_sabundle(struct ipsec_rule *r, int opts) |
386 |
|
|
{ |
387 |
|
24 |
printf("[bundle %s to ", satype[r->proto]); |
388 |
|
12 |
ipsecctl_print_addr(r->dst); |
389 |
|
12 |
printf(" spi 0x%08x with %s to ", r->spi, satype[r->proto2]); |
390 |
|
12 |
ipsecctl_print_addr(r->dst2); |
391 |
|
12 |
printf(" spi 0x%08x", r->spi2); |
392 |
|
|
|
393 |
|
12 |
printf("]\n"); |
394 |
|
12 |
} |
395 |
|
|
|
396 |
|
|
void |
397 |
|
|
ipsecctl_print_rule(struct ipsec_rule *r, int opts) |
398 |
|
|
{ |
399 |
✗✓ |
1156 |
if (opts & IPSECCTL_OPT_VERBOSE2) |
400 |
|
|
printf("@%d ", r->nr); |
401 |
|
|
|
402 |
✓✓ |
578 |
if (r->type & RULE_FLOW) |
403 |
|
198 |
ipsecctl_print_flow(r, opts); |
404 |
✓✓ |
578 |
if (r->type & RULE_SA) |
405 |
|
194 |
ipsecctl_print_sa(r, opts); |
406 |
✓✓ |
578 |
if (r->type & RULE_IKE) |
407 |
|
174 |
ike_print_config(r, opts); |
408 |
✓✓ |
578 |
if (r->type & RULE_BUNDLE) |
409 |
|
12 |
ipsecctl_print_sabundle(r, opts); |
410 |
|
578 |
} |
411 |
|
|
|
412 |
|
|
int |
413 |
|
|
ipsecctl_flush(int opts) |
414 |
|
|
{ |
415 |
|
|
if (opts & IPSECCTL_OPT_NOACTION) |
416 |
|
|
return (0); |
417 |
|
|
|
418 |
|
|
if (pfkey_init() == -1) |
419 |
|
|
errx(1, "ipsecctl_flush: failed to open PF_KEY socket"); |
420 |
|
|
|
421 |
|
|
if (pfkey_ipsec_flush() == -1) |
422 |
|
|
errx(1, "ipsecctl_flush: failed to flush"); |
423 |
|
|
|
424 |
|
|
return (0); |
425 |
|
|
} |
426 |
|
|
|
427 |
|
|
void |
428 |
|
|
ipsecctl_get_rules(struct ipsecctl *ipsec) |
429 |
|
|
{ |
430 |
|
|
struct sadb_msg *msg; |
431 |
|
|
struct ipsec_rule *rule; |
432 |
|
|
int mib[4]; |
433 |
|
|
size_t need; |
434 |
|
|
char *buf, *lim, *next; |
435 |
|
|
|
436 |
|
|
mib[0] = CTL_NET; |
437 |
|
|
mib[1] = PF_KEY; |
438 |
|
|
mib[2] = PF_KEY_V2; |
439 |
|
|
mib[3] = NET_KEY_SPD_DUMP; |
440 |
|
|
|
441 |
|
|
if (sysctl(mib, 4, NULL, &need, NULL, 0) == -1) |
442 |
|
|
err(1, "ipsecctl_get_rules: sysctl"); |
443 |
|
|
if (need == 0) |
444 |
|
|
return; |
445 |
|
|
if ((buf = malloc(need)) == NULL) |
446 |
|
|
err(1, "ipsecctl_get_rules: malloc"); |
447 |
|
|
if (sysctl(mib, 4, buf, &need, NULL, 0) == -1) |
448 |
|
|
err(1, "ipsecctl_get_rules: sysctl"); |
449 |
|
|
lim = buf + need; |
450 |
|
|
|
451 |
|
|
for (next = buf; next < lim; next += msg->sadb_msg_len * |
452 |
|
|
PFKEYV2_CHUNK) { |
453 |
|
|
msg = (struct sadb_msg *)next; |
454 |
|
|
if (msg->sadb_msg_len == 0) |
455 |
|
|
break; |
456 |
|
|
|
457 |
|
|
rule = calloc(1, sizeof(struct ipsec_rule)); |
458 |
|
|
if (rule == NULL) |
459 |
|
|
err(1, "ipsecctl_get_rules: calloc"); |
460 |
|
|
rule->nr = ipsec->rule_nr++; |
461 |
|
|
rule->type |= RULE_FLOW; |
462 |
|
|
|
463 |
|
|
if (pfkey_parse(msg, rule)) |
464 |
|
|
errx(1, "ipsecctl_get_rules: " |
465 |
|
|
"failed to parse PF_KEY message"); |
466 |
|
|
|
467 |
|
|
ipsecctl_add_rule(ipsec, rule); |
468 |
|
|
} |
469 |
|
|
|
470 |
|
|
free(buf); |
471 |
|
|
} |
472 |
|
|
|
473 |
|
|
void |
474 |
|
|
ipsecctl_print_title(char *title) |
475 |
|
|
{ |
476 |
|
|
if (!first_title) |
477 |
|
|
printf("\n"); |
478 |
|
|
first_title = 0; |
479 |
|
|
printf("%s\n", title); |
480 |
|
|
} |
481 |
|
|
|
482 |
|
|
void |
483 |
|
|
ipsecctl_show_flows(int opts) |
484 |
|
|
{ |
485 |
|
|
struct ipsecctl ipsec; |
486 |
|
|
struct ipsec_rule *rp; |
487 |
|
|
|
488 |
|
|
bzero(&ipsec, sizeof(ipsec)); |
489 |
|
|
ipsec.opts = opts; |
490 |
|
|
TAILQ_INIT(&ipsec.rule_queue); |
491 |
|
|
|
492 |
|
|
ipsecctl_get_rules(&ipsec); |
493 |
|
|
|
494 |
|
|
if (opts & IPSECCTL_OPT_SHOWALL) |
495 |
|
|
ipsecctl_print_title("FLOWS:"); |
496 |
|
|
|
497 |
|
|
if (TAILQ_FIRST(&ipsec.rule_queue) == 0) { |
498 |
|
|
if (opts & IPSECCTL_OPT_SHOWALL) |
499 |
|
|
printf("No flows\n"); |
500 |
|
|
return; |
501 |
|
|
} |
502 |
|
|
|
503 |
|
|
while ((rp = TAILQ_FIRST(&ipsec.rule_queue))) { |
504 |
|
|
TAILQ_REMOVE(&ipsec.rule_queue, rp, rule_entry); |
505 |
|
|
|
506 |
|
|
ipsecctl_print_rule(rp, ipsec.opts); |
507 |
|
|
|
508 |
|
|
free(rp->src->name); |
509 |
|
|
free(rp->src); |
510 |
|
|
free(rp->dst->name); |
511 |
|
|
free(rp->dst); |
512 |
|
|
if (rp->local) { |
513 |
|
|
free(rp->local->name); |
514 |
|
|
free(rp->local); |
515 |
|
|
} |
516 |
|
|
if (rp->peer) { |
517 |
|
|
free(rp->peer->name); |
518 |
|
|
free(rp->peer); |
519 |
|
|
} |
520 |
|
|
if (rp->auth) { |
521 |
|
|
free(rp->auth->srcid); |
522 |
|
|
free(rp->auth->dstid); |
523 |
|
|
free(rp->auth); |
524 |
|
|
} |
525 |
|
|
free(rp); |
526 |
|
|
} |
527 |
|
|
} |
528 |
|
|
|
529 |
|
|
void |
530 |
|
|
ipsecctl_show_sas(int opts) |
531 |
|
|
{ |
532 |
|
|
struct sadb_msg *msg; |
533 |
|
|
struct sad *sad; |
534 |
|
|
int mib[5], sacount, i; |
535 |
|
|
size_t need = 0; |
536 |
|
|
char *buf, *lim, *next; |
537 |
|
|
|
538 |
|
|
mib[0] = CTL_NET; |
539 |
|
|
mib[1] = PF_KEY; |
540 |
|
|
mib[2] = PF_KEY_V2; |
541 |
|
|
mib[3] = NET_KEY_SADB_DUMP; |
542 |
|
|
mib[4] = SADB_SATYPE_UNSPEC; |
543 |
|
|
|
544 |
|
|
if (opts & IPSECCTL_OPT_SHOWALL) |
545 |
|
|
ipsecctl_print_title("SAD:"); |
546 |
|
|
|
547 |
|
|
/* When the SAD is empty we get ENOENT, no need to err(). */ |
548 |
|
|
if (sysctl(mib, 5, NULL, &need, NULL, 0) == -1 && errno != ENOENT) |
549 |
|
|
err(1, "ipsecctl_show_sas: sysctl"); |
550 |
|
|
if (need == 0) { |
551 |
|
|
if (opts & IPSECCTL_OPT_SHOWALL) |
552 |
|
|
printf("No entries\n"); |
553 |
|
|
return; |
554 |
|
|
} |
555 |
|
|
if ((buf = malloc(need)) == NULL) |
556 |
|
|
err(1, "ipsecctl_show_sas: malloc"); |
557 |
|
|
if (sysctl(mib, 5, buf, &need, NULL, 0) == -1) |
558 |
|
|
err(1, "ipsecctl_show_sas: sysctl"); |
559 |
|
|
sacount = 0; |
560 |
|
|
lim = buf + need; |
561 |
|
|
for (next = buf; next < lim; |
562 |
|
|
next += msg->sadb_msg_len * PFKEYV2_CHUNK) { |
563 |
|
|
msg = (struct sadb_msg *)next; |
564 |
|
|
if (msg->sadb_msg_len == 0) |
565 |
|
|
break; |
566 |
|
|
sacount++; |
567 |
|
|
} |
568 |
|
|
if ((sad = calloc(sacount, sizeof(*sad))) == NULL) |
569 |
|
|
err(1, "ipsecctl_show_sas: calloc"); |
570 |
|
|
i = 0; |
571 |
|
|
for (next = buf; next < lim; |
572 |
|
|
next += msg->sadb_msg_len * PFKEYV2_CHUNK) { |
573 |
|
|
msg = (struct sadb_msg *)next; |
574 |
|
|
if (msg->sadb_msg_len == 0) |
575 |
|
|
break; |
576 |
|
|
sad[i].sad_spi = pfkey_get_spi(msg); |
577 |
|
|
sad[i].sad_msg = msg; |
578 |
|
|
i++; |
579 |
|
|
} |
580 |
|
|
qsort(sad, sacount, sizeof(*sad), sacompare); |
581 |
|
|
for (i = 0; i < sacount; i++) |
582 |
|
|
pfkey_print_sa(sad[i].sad_msg, opts); |
583 |
|
|
free(sad); |
584 |
|
|
free(buf); |
585 |
|
|
} |
586 |
|
|
|
587 |
|
|
int |
588 |
|
|
ipsecctl_monitor(int opts) |
589 |
|
|
{ |
590 |
|
|
return (pfkey_monitor(opts)); |
591 |
|
|
} |
592 |
|
|
|
593 |
|
|
__dead void |
594 |
|
|
usage(void) |
595 |
|
|
{ |
596 |
|
|
extern char *__progname; |
597 |
|
|
|
598 |
|
|
fprintf(stderr, "usage: %s [-dFkmnv] [-D macro=value] [-f file]" |
599 |
|
|
" [-i fifo] [-s modifier]\n", __progname); |
600 |
|
|
exit(1); |
601 |
|
|
} |
602 |
|
|
|
603 |
|
|
const char * |
604 |
|
|
ipsecctl_lookup_option(char *cmd, const char **list) |
605 |
|
|
{ |
606 |
|
|
if (cmd != NULL && *cmd) |
607 |
|
|
for (; *list; list++) |
608 |
|
|
if (!strncmp(cmd, *list, strlen(cmd))) |
609 |
|
|
return (*list); |
610 |
|
|
return (NULL); |
611 |
|
|
} |
612 |
|
|
|
613 |
|
|
int |
614 |
|
|
main(int argc, char *argv[]) |
615 |
|
|
{ |
616 |
|
|
int error = 0; |
617 |
|
|
int ch; |
618 |
|
|
int opts = 0; |
619 |
|
|
char *rulesopt = NULL; |
620 |
|
|
|
621 |
✗✓ |
400 |
if (argc < 2) |
622 |
|
|
usage(); |
623 |
|
|
|
624 |
✓✓ |
870 |
while ((ch = getopt(argc, argv, "D:df:Fi:kmnvs:")) != -1) { |
625 |
✗✓✓✗
✗✓✗✓
✓✗✗ |
670 |
switch (ch) { |
626 |
|
|
case 'D': |
627 |
|
|
if (cmdline_symset(optarg) < 0) |
628 |
|
|
warnx("could not parse macro definition %s", |
629 |
|
|
optarg); |
630 |
|
|
break; |
631 |
|
|
|
632 |
|
|
case 'd': |
633 |
|
40 |
opts |= IPSECCTL_OPT_DELETE; |
634 |
|
40 |
break; |
635 |
|
|
|
636 |
|
|
case 'f': |
637 |
|
200 |
rulesopt = optarg; |
638 |
|
200 |
break; |
639 |
|
|
|
640 |
|
|
case 'F': |
641 |
|
|
opts |= IPSECCTL_OPT_FLUSH; |
642 |
|
|
break; |
643 |
|
|
|
644 |
|
|
case 'i': |
645 |
|
|
isakmpd_fifo = optarg; |
646 |
|
|
break; |
647 |
|
|
|
648 |
|
|
case 'k': |
649 |
|
30 |
opts |= IPSECCTL_OPT_SHOWKEY; |
650 |
|
30 |
break; |
651 |
|
|
|
652 |
|
|
case 'm': |
653 |
|
|
opts |= IPSECCTL_OPT_MONITOR; |
654 |
|
|
break; |
655 |
|
|
|
656 |
|
|
case 'n': |
657 |
|
200 |
opts |= IPSECCTL_OPT_NOACTION; |
658 |
|
200 |
break; |
659 |
|
|
|
660 |
|
|
case 'v': |
661 |
✗✓ |
200 |
if (opts & IPSECCTL_OPT_VERBOSE) |
662 |
|
|
opts |= IPSECCTL_OPT_VERBOSE2; |
663 |
|
200 |
opts |= IPSECCTL_OPT_VERBOSE; |
664 |
|
200 |
break; |
665 |
|
|
|
666 |
|
|
case 's': |
667 |
|
|
showopt = ipsecctl_lookup_option(optarg, showopt_list); |
668 |
|
|
if (showopt == NULL) { |
669 |
|
|
warnx("Unknown show modifier '%s'", optarg); |
670 |
|
|
usage(); |
671 |
|
|
/* NOTREACHED */ |
672 |
|
|
} |
673 |
|
|
opts |= IPSECCTL_OPT_SHOW; |
674 |
|
|
break; |
675 |
|
|
|
676 |
|
|
default: |
677 |
|
|
usage(); |
678 |
|
|
/* NOTREACHED */ |
679 |
|
|
} |
680 |
|
|
} |
681 |
|
|
|
682 |
✗✓ |
200 |
if (argc != optind) { |
683 |
|
|
warnx("unknown command line argument: %s ...", argv[optind]); |
684 |
|
|
usage(); |
685 |
|
|
/* NOTREACHED */ |
686 |
|
|
} |
687 |
✗✓ |
200 |
if (opts & IPSECCTL_OPT_FLUSH) |
688 |
|
|
if (ipsecctl_flush(opts)) |
689 |
|
|
error = 1; |
690 |
|
|
|
691 |
✓✗ |
200 |
if (rulesopt != NULL) |
692 |
✓✓ |
200 |
if (ipsecctl_rules(rulesopt, opts)) |
693 |
|
15 |
error = 1; |
694 |
|
|
|
695 |
✗✓ |
200 |
if (showopt != NULL) { |
696 |
|
|
switch (*showopt) { |
697 |
|
|
case 'f': |
698 |
|
|
ipsecctl_show_flows(opts); |
699 |
|
|
break; |
700 |
|
|
case 's': |
701 |
|
|
ipsecctl_show_sas(opts); |
702 |
|
|
break; |
703 |
|
|
case 'a': |
704 |
|
|
opts |= IPSECCTL_OPT_SHOWALL; |
705 |
|
|
ipsecctl_show_flows(opts); |
706 |
|
|
ipsecctl_show_sas(opts); |
707 |
|
|
} |
708 |
|
|
} |
709 |
|
|
|
710 |
✗✓ |
200 |
if (opts & IPSECCTL_OPT_MONITOR) |
711 |
|
|
if (ipsecctl_monitor(opts)) |
712 |
|
|
error = 1; |
713 |
|
|
|
714 |
|
|
exit(error); |
715 |
|
|
} |
716 |
|
|
|
717 |
|
|
/* ARGSUSED1 */ |
718 |
|
|
static int |
719 |
|
|
unmask(struct ipsec_addr *ipa, sa_family_t af) |
720 |
|
|
{ |
721 |
|
|
int i = 31, j = 0, b = 0; |
722 |
|
|
u_int32_t tmp; |
723 |
|
|
|
724 |
✓✓✓✓
|
9397 |
while (j < 4 && ipa->addr32[j] == 0xffffffff) { |
725 |
|
1919 |
b += 32; |
726 |
|
1919 |
j++; |
727 |
|
|
} |
728 |
✓✓ |
994 |
if (j < 4) { |
729 |
|
658 |
tmp = ntohl(ipa->addr32[j]); |
730 |
✓✓ |
4804 |
for (i = 31; tmp & (1 << i); --i) |
731 |
|
1744 |
b++; |
732 |
|
|
} |
733 |
|
994 |
return (b); |
734 |
|
|
} |