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[strongswan.git] / src / stroke / stroke.c
1 /* Stroke for charon is the counterpart to whack from pluto
2 * Copyright (C) 2007 Tobias Brunner
3 * Copyright (C) 2006 Martin Willi
4 * Hochschule fuer Technik Rapperswil
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * for more details.
15 */
16
17 #include <stdlib.h>
18 #include <sys/types.h>
19 #include <sys/stat.h>
20 #include <sys/socket.h>
21 #include <sys/un.h>
22 #include <unistd.h>
23 #include <dirent.h>
24 #include <errno.h>
25 #include <stdio.h>
26 #include <stddef.h>
27 #include <string.h>
28
29 #include <library.h>
30
31 #include "stroke_msg.h"
32 #include "stroke_keywords.h"
33
34 struct stroke_token {
35 char *name;
36 stroke_keyword_t kw;
37 };
38
39 static char* push_string(stroke_msg_t *msg, char *string)
40 {
41 unsigned long string_start = msg->length;
42
43 if (string == NULL || msg->length + strlen(string) >= sizeof(stroke_msg_t))
44 {
45 return NULL;
46 }
47 else
48 {
49 msg->length += strlen(string) + 1;
50 strcpy((char*)msg + string_start, string);
51 return (char*)string_start;
52 }
53 }
54
55 static int send_stroke_msg (stroke_msg_t *msg)
56 {
57 struct sockaddr_un ctl_addr;
58 int sock, byte_count;
59 char buffer[512], *pass;
60
61 ctl_addr.sun_family = AF_UNIX;
62 strcpy(ctl_addr.sun_path, STROKE_SOCKET);
63
64 msg->output_verbosity = 1; /* CONTROL */
65
66 sock = socket(AF_UNIX, SOCK_STREAM, 0);
67 if (sock < 0)
68 {
69 fprintf(stderr, "Opening unix socket %s: %s\n", STROKE_SOCKET, strerror(errno));
70 return -1;
71 }
72 if (connect(sock, (struct sockaddr *)&ctl_addr,
73 offsetof(struct sockaddr_un, sun_path) + strlen(ctl_addr.sun_path)) < 0)
74 {
75 fprintf(stderr, "Connect to socket failed: %s\n", strerror(errno));
76 close(sock);
77 return -1;
78 }
79
80 /* send message */
81 if (write(sock, msg, msg->length) != msg->length)
82 {
83 fprintf(stderr, "writing to socket failed: %s\n", strerror(errno));
84 close(sock);
85 return -1;
86 }
87
88 while ((byte_count = read(sock, buffer, sizeof(buffer)-1)) > 0)
89 {
90 buffer[byte_count] = '\0';
91
92 /* we prompt if we receive the "Passphrase:"/"PIN:" magic keyword */
93 if ((byte_count >= 12 &&
94 strcmp(buffer + byte_count - 12, "Passphrase:\n") == 0) ||
95 (byte_count >= 5 &&
96 strcmp(buffer + byte_count - 5, "PIN:\n") == 0))
97 {
98 /* remove trailing newline */
99 pass = strrchr(buffer, '\n');
100 if (pass)
101 {
102 *pass = ' ';
103 }
104 pass = getpass(buffer);
105 if (pass)
106 {
107 ignore_result(write(sock, pass, strlen(pass)));
108 ignore_result(write(sock, "\n", 1));
109 }
110 }
111 else
112 {
113 printf("%s", buffer);
114 }
115 }
116 if (byte_count < 0)
117 {
118 fprintf(stderr, "reading from socket failed: %s\n", strerror(errno));
119 }
120
121 close(sock);
122 return 0;
123 }
124
125 static int add_connection(char *name,
126 char *my_id, char *other_id,
127 char *my_addr, char *other_addr,
128 char *my_nets, char *other_nets)
129 {
130 stroke_msg_t msg;
131
132 memset(&msg, 0, sizeof(msg));
133 msg.length = offsetof(stroke_msg_t, buffer);
134 msg.type = STR_ADD_CONN;
135
136 msg.add_conn.name = push_string(&msg, name);
137 msg.add_conn.ikev2 = 1;
138 msg.add_conn.auth_method = 2;
139 msg.add_conn.mode = 1;
140 msg.add_conn.mobike = 1;
141 msg.add_conn.dpd.action = 1;
142
143 msg.add_conn.me.id = push_string(&msg, my_id);
144 msg.add_conn.me.address = push_string(&msg, my_addr);
145 msg.add_conn.me.ikeport = 500;
146 msg.add_conn.me.subnets = push_string(&msg, my_nets);
147 msg.add_conn.me.sendcert = 1;
148
149 msg.add_conn.other.id = push_string(&msg, other_id);
150 msg.add_conn.other.address = push_string(&msg, other_addr);
151 msg.add_conn.other.ikeport = 500;
152 msg.add_conn.other.subnets = push_string(&msg, other_nets);
153 msg.add_conn.other.sendcert = 1;
154
155 return send_stroke_msg(&msg);
156 }
157
158 static int del_connection(char *name)
159 {
160 stroke_msg_t msg;
161
162 msg.length = offsetof(stroke_msg_t, buffer);
163 msg.type = STR_DEL_CONN;
164 msg.initiate.name = push_string(&msg, name);
165 return send_stroke_msg(&msg);
166 }
167
168 static int initiate_connection(char *name)
169 {
170 stroke_msg_t msg;
171
172 msg.length = offsetof(stroke_msg_t, buffer);
173 msg.type = STR_INITIATE;
174 msg.initiate.name = push_string(&msg, name);
175 return send_stroke_msg(&msg);
176 }
177
178 static int terminate_connection(char *name)
179 {
180 stroke_msg_t msg;
181
182 msg.type = STR_TERMINATE;
183 msg.length = offsetof(stroke_msg_t, buffer);
184 msg.initiate.name = push_string(&msg, name);
185 return send_stroke_msg(&msg);
186 }
187
188 static int terminate_connection_srcip(char *start, char *end)
189 {
190 stroke_msg_t msg;
191
192 msg.type = STR_TERMINATE_SRCIP;
193 msg.length = offsetof(stroke_msg_t, buffer);
194 msg.terminate_srcip.start = push_string(&msg, start);
195 msg.terminate_srcip.end = push_string(&msg, end);
196 return send_stroke_msg(&msg);
197 }
198
199 static int rekey_connection(char *name)
200 {
201 stroke_msg_t msg;
202
203 msg.type = STR_REKEY;
204 msg.length = offsetof(stroke_msg_t, buffer);
205 msg.rekey.name = push_string(&msg, name);
206 return send_stroke_msg(&msg);
207 }
208
209 static int route_connection(char *name)
210 {
211 stroke_msg_t msg;
212
213 msg.type = STR_ROUTE;
214 msg.length = offsetof(stroke_msg_t, buffer);
215 msg.route.name = push_string(&msg, name);
216 return send_stroke_msg(&msg);
217 }
218
219 static int unroute_connection(char *name)
220 {
221 stroke_msg_t msg;
222
223 msg.type = STR_UNROUTE;
224 msg.length = offsetof(stroke_msg_t, buffer);
225 msg.unroute.name = push_string(&msg, name);
226 return send_stroke_msg(&msg);
227 }
228
229 static int show_status(stroke_keyword_t kw, char *connection)
230 {
231 stroke_msg_t msg;
232
233 switch (kw)
234 {
235 case STROKE_STATUSALL:
236 msg.type = STR_STATUS_ALL;
237 break;
238 case STROKE_STATUSALL_NOBLK:
239 msg.type = STR_STATUS_ALL_NOBLK;
240 break;
241 default:
242 msg.type = STR_STATUS;
243 break;
244 }
245 msg.length = offsetof(stroke_msg_t, buffer);
246 msg.status.name = push_string(&msg, connection);
247 return send_stroke_msg(&msg);
248 }
249
250 static int list_flags[] = {
251 LIST_PUBKEYS,
252 LIST_CERTS,
253 LIST_CACERTS,
254 LIST_OCSPCERTS,
255 LIST_AACERTS,
256 LIST_ACERTS,
257 LIST_GROUPS,
258 LIST_CAINFOS,
259 LIST_CRLS,
260 LIST_OCSP,
261 LIST_ALGS,
262 LIST_ALL
263 };
264
265 static int list(stroke_keyword_t kw, int utc)
266 {
267 stroke_msg_t msg;
268
269 msg.type = STR_LIST;
270 msg.length = offsetof(stroke_msg_t, buffer);
271 msg.list.utc = utc;
272 msg.list.flags = list_flags[kw - STROKE_LIST_FIRST];
273 return send_stroke_msg(&msg);
274 }
275
276 static int reread_flags[] = {
277 REREAD_SECRETS,
278 REREAD_CACERTS,
279 REREAD_OCSPCERTS,
280 REREAD_AACERTS,
281 REREAD_ACERTS,
282 REREAD_CRLS,
283 REREAD_ALL
284 };
285
286 static int reread(stroke_keyword_t kw)
287 {
288 stroke_msg_t msg;
289
290 msg.type = STR_REREAD;
291 msg.length = offsetof(stroke_msg_t, buffer);
292 msg.reread.flags = reread_flags[kw - STROKE_REREAD_FIRST];
293 return send_stroke_msg(&msg);
294 }
295
296 static int purge_flags[] = {
297 PURGE_OCSP,
298 PURGE_CRLS,
299 PURGE_CERTS,
300 PURGE_IKE,
301 };
302
303 static int purge(stroke_keyword_t kw)
304 {
305 stroke_msg_t msg;
306
307 msg.type = STR_PURGE;
308 msg.length = offsetof(stroke_msg_t, buffer);
309 msg.purge.flags = purge_flags[kw - STROKE_PURGE_FIRST];
310 return send_stroke_msg(&msg);
311 }
312
313 static int export_flags[] = {
314 EXPORT_X509,
315 };
316
317 static int export(stroke_keyword_t kw, char *selector)
318 {
319 stroke_msg_t msg;
320
321 msg.type = STR_EXPORT;
322 msg.length = offsetof(stroke_msg_t, buffer);
323 msg.export.selector = push_string(&msg, selector);
324 msg.export.flags = export_flags[kw - STROKE_EXPORT_FIRST];
325 return send_stroke_msg(&msg);
326 }
327
328 static int leases(stroke_keyword_t kw, char *pool, char *address)
329 {
330 stroke_msg_t msg;
331
332 msg.type = STR_LEASES;
333 msg.length = offsetof(stroke_msg_t, buffer);
334 msg.leases.pool = push_string(&msg, pool);
335 msg.leases.address = push_string(&msg, address);
336 return send_stroke_msg(&msg);
337 }
338
339 static int memusage()
340 {
341 stroke_msg_t msg;
342
343 msg.type = STR_MEMUSAGE;
344 msg.length = offsetof(stroke_msg_t, buffer);
345 return send_stroke_msg(&msg);
346 }
347
348 static int set_loglevel(char *type, u_int level)
349 {
350 stroke_msg_t msg;
351
352 msg.type = STR_LOGLEVEL;
353 msg.length = offsetof(stroke_msg_t, buffer);
354 msg.loglevel.type = push_string(&msg, type);
355 msg.loglevel.level = level;
356 return send_stroke_msg(&msg);
357 }
358
359 static void exit_error(char *error)
360 {
361 if (error)
362 {
363 fprintf(stderr, "%s\n", error);
364 }
365 exit(-1);
366 }
367
368 static void exit_usage(char *error)
369 {
370 printf("Usage:\n");
371 printf(" Add a connection:\n");
372 printf(" stroke add NAME MY_ID OTHER_ID MY_ADDR OTHER_ADDR\\\n");
373 printf(" MY_NET OTHER_NET MY_NETBITS OTHER_NETBITS\n");
374 printf(" where: ID is any IKEv2 ID \n");
375 printf(" ADDR is a IPv4 address\n");
376 printf(" NET is a IPv4 subnet in CIDR notation\n");
377 printf(" Delete a connection:\n");
378 printf(" stroke delete NAME\n");
379 printf(" where: NAME is a connection name added with \"stroke add\"\n");
380 printf(" Initiate a connection:\n");
381 printf(" stroke up NAME\n");
382 printf(" where: NAME is a connection name added with \"stroke add\"\n");
383 printf(" Terminate a connection:\n");
384 printf(" stroke down NAME\n");
385 printf(" where: NAME is a connection name added with \"stroke add\"\n");
386 printf(" Terminate a connection by remote srcip:\n");
387 printf(" stroke down-srcip START [END]\n");
388 printf(" where: START and optional END define the clients source IP\n");
389 printf(" Set loglevel for a logging type:\n");
390 printf(" stroke loglevel TYPE LEVEL\n");
391 printf(" where: TYPE is any|dmn|mgr|ike|chd|job|cfg|knl|net|enc|tnc|imc|imv|pts|tls|lib\n");
392 printf(" LEVEL is -1|0|1|2|3|4\n");
393 printf(" Show connection status:\n");
394 printf(" stroke status\n");
395 printf(" Show extended status information:\n");
396 printf(" stroke statusall\n");
397 printf(" Show extended status information without blocking:\n");
398 printf(" stroke statusallnb\n");
399 printf(" Show list of authority and attribute certificates:\n");
400 printf(" stroke listcacerts|listocspcerts|listaacerts|listacerts\n");
401 printf(" Show list of end entity certificates, ca info records and crls:\n");
402 printf(" stroke listcerts|listcainfos|listcrls|listall\n");
403 printf(" Show list of supported algorithms:\n");
404 printf(" stroke listalgs\n");
405 printf(" Reload authority and attribute certificates:\n");
406 printf(" stroke rereadcacerts|rereadocspcerts|rereadaacerts|rereadacerts\n");
407 printf(" Reload secrets and crls:\n");
408 printf(" stroke rereadsecrets|rereadcrls|rereadall\n");
409 printf(" Purge ocsp cache entries:\n");
410 printf(" stroke purgeocsp\n");
411 printf(" Purge CRL cache entries:\n");
412 printf(" stroke purgecrls\n");
413 printf(" Purge X509 cache entries:\n");
414 printf(" stroke purgecerts\n");
415 printf(" Purge IKE_SAs without a CHILD_SA:\n");
416 printf(" stroke purgeike\n");
417 printf(" Export credentials to the console:\n");
418 printf(" stroke exportx509 DN\n");
419 printf(" Show current memory usage:\n");
420 printf(" stroke memusage\n");
421 printf(" Show leases of a pool:\n");
422 printf(" stroke leases [POOL [ADDRESS]]\n");
423 exit_error(error);
424 }
425
426 int main(int argc, char *argv[])
427 {
428 const stroke_token_t *token;
429 int res = 0;
430
431 library_init(NULL);
432 atexit(library_deinit);
433
434 if (argc < 2)
435 {
436 exit_usage(NULL);
437 }
438
439 token = in_word_set(argv[1], strlen(argv[1]));
440
441 if (token == NULL)
442 {
443 exit_usage("unknown keyword");
444 }
445
446 switch (token->kw)
447 {
448 case STROKE_ADD:
449 if (argc < 11)
450 {
451 exit_usage("\"add\" needs more parameters...");
452 }
453 res = add_connection(argv[2],
454 argv[3], argv[4],
455 argv[5], argv[6],
456 argv[7], argv[8]);
457 break;
458 case STROKE_DELETE:
459 case STROKE_DEL:
460 if (argc < 3)
461 {
462 exit_usage("\"delete\" needs a connection name");
463 }
464 res = del_connection(argv[2]);
465 break;
466 case STROKE_UP:
467 if (argc < 3)
468 {
469 exit_usage("\"up\" needs a connection name");
470 }
471 res = initiate_connection(argv[2]);
472 break;
473 case STROKE_DOWN:
474 if (argc < 3)
475 {
476 exit_usage("\"down\" needs a connection name");
477 }
478 res = terminate_connection(argv[2]);
479 break;
480 case STROKE_DOWN_SRCIP:
481 if (argc < 3)
482 {
483 exit_usage("\"down-srcip\" needs start and optional end address");
484 }
485 res = terminate_connection_srcip(argv[2], argc > 3 ? argv[3] : NULL);
486 break;
487 case STROKE_REKEY:
488 if (argc < 3)
489 {
490 exit_usage("\"rekey\" needs a connection name");
491 }
492 res = rekey_connection(argv[2]);
493 break;
494 case STROKE_ROUTE:
495 if (argc < 3)
496 {
497 exit_usage("\"route\" needs a connection name");
498 }
499 res = route_connection(argv[2]);
500 break;
501 case STROKE_UNROUTE:
502 if (argc < 3)
503 {
504 exit_usage("\"unroute\" needs a connection name");
505 }
506 res = unroute_connection(argv[2]);
507 break;
508 case STROKE_LOGLEVEL:
509 if (argc < 4)
510 {
511 exit_usage("\"logtype\" needs more parameters...");
512 }
513 res = set_loglevel(argv[2], atoi(argv[3]));
514 break;
515 case STROKE_STATUS:
516 case STROKE_STATUSALL:
517 case STROKE_STATUSALL_NOBLK:
518 res = show_status(token->kw, argc > 2 ? argv[2] : NULL);
519 break;
520 case STROKE_LIST_PUBKEYS:
521 case STROKE_LIST_CERTS:
522 case STROKE_LIST_CACERTS:
523 case STROKE_LIST_OCSPCERTS:
524 case STROKE_LIST_AACERTS:
525 case STROKE_LIST_ACERTS:
526 case STROKE_LIST_CAINFOS:
527 case STROKE_LIST_CRLS:
528 case STROKE_LIST_OCSP:
529 case STROKE_LIST_ALGS:
530 case STROKE_LIST_ALL:
531 res = list(token->kw, argc > 2 && strcmp(argv[2], "--utc") == 0);
532 break;
533 case STROKE_REREAD_SECRETS:
534 case STROKE_REREAD_CACERTS:
535 case STROKE_REREAD_OCSPCERTS:
536 case STROKE_REREAD_AACERTS:
537 case STROKE_REREAD_ACERTS:
538 case STROKE_REREAD_CRLS:
539 case STROKE_REREAD_ALL:
540 res = reread(token->kw);
541 break;
542 case STROKE_PURGE_OCSP:
543 case STROKE_PURGE_CRLS:
544 case STROKE_PURGE_CERTS:
545 case STROKE_PURGE_IKE:
546 res = purge(token->kw);
547 break;
548 case STROKE_EXPORT_X509:
549 if (argc != 3)
550 {
551 exit_usage("\"exportx509\" needs a distinguished name");
552 }
553 res = export(token->kw, argv[2]);
554 break;
555 case STROKE_LEASES:
556 res = leases(token->kw, argc > 2 ? argv[2] : NULL,
557 argc > 3 ? argv[3] : NULL);
558 break;
559 case STROKE_MEMUSAGE:
560 res = memusage();
561 break;
562 default:
563 exit_usage(NULL);
564 }
565 return res;
566 }
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