implemented handling of dpdaction and dpddelay ipsec.conf parameters
[strongswan.git] / src / stroke / stroke.c
1 /* Stroke for charon is the counterpart to whack from pluto
2 * Copyright (C) 2006 Martin Willi - Hochschule fuer Technik Rapperswil
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License as published by the
6 * Free Software Foundation; either version 2 of the License, or (at your
7 * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
11 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * for more details.
13 */
14
15 #include <stdlib.h>
16 #include <sys/types.h>
17 #include <sys/stat.h>
18 #include <sys/socket.h>
19 #include <sys/un.h>
20 #include <sys/fcntl.h>
21 #include <unistd.h>
22 #include <dirent.h>
23 #include <errno.h>
24 #include <stdio.h>
25 #include <linux/stddef.h>
26
27 #include <types.h>
28
29 #include "stroke.h"
30 #include "stroke_keywords.h"
31
32 struct stroke_token {
33 char *name;
34 stroke_keyword_t kw;
35 };
36
37 static char* push_string(stroke_msg_t *msg, char *string)
38 {
39 u_int string_start = msg->length;
40
41 if (string == NULL || msg->length + strlen(string) >= sizeof(stroke_msg_t))
42 {
43 return NULL;
44 }
45 else
46 {
47 msg->length += strlen(string) + 1;
48 strcpy((char*)msg + string_start, string);
49 return (char*)string_start;
50 }
51 }
52
53 static int send_stroke_msg (stroke_msg_t *msg)
54 {
55 struct sockaddr_un ctl_addr = { AF_UNIX, STROKE_SOCKET };
56 int sock;
57 char buffer[64];
58 int byte_count;
59
60 sock = socket(AF_UNIX, SOCK_STREAM, 0);
61 if (sock < 0)
62 {
63 fprintf(stderr, "Opening unix socket %s: %s\n", STROKE_SOCKET, strerror(errno));
64 return -1;
65 }
66 if (connect(sock, (struct sockaddr *)&ctl_addr,
67 offsetof(struct sockaddr_un, sun_path) + strlen(ctl_addr.sun_path)) < 0)
68 {
69 fprintf(stderr, "Connect to socket failed: %s\n", strerror(errno));
70 close(sock);
71 return -1;
72 }
73
74 /* send message */
75 if (write(sock, msg, msg->length) != msg->length)
76 {
77 fprintf(stderr, "writing to socket failed: %s\n", strerror(errno));
78 close(sock);
79 return -1;
80 }
81
82 while ((byte_count = read(sock, buffer, sizeof(buffer)-1)) > 0)
83 {
84 buffer[byte_count] = '\0';
85 printf("%s", buffer);
86 }
87 if (byte_count < 0)
88 {
89 fprintf(stderr, "reading from socket failed: %s\n", strerror(errno));
90 }
91
92 close(sock);
93 return 0;
94 }
95
96 static int add_connection(char *name,
97 char *my_id, char *other_id,
98 char *my_addr, char *other_addr,
99 char *my_net, char *other_net,
100 u_int my_netmask, u_int other_netmask)
101 {
102 stroke_msg_t msg;
103
104 msg.length = offsetof(stroke_msg_t, buffer);
105 msg.type = STR_ADD_CONN;
106
107 msg.add_conn.name = push_string(&msg, name);
108 msg.add_conn.ikev2 = 1;
109
110 msg.add_conn.rekey.ipsec_lifetime = 0;
111 msg.add_conn.rekey.ike_lifetime = 0;
112 msg.add_conn.rekey.margin = 0;
113 msg.add_conn.rekey.tries = 0;
114 msg.add_conn.rekey.fuzz = 0;
115
116 msg.add_conn.algorithms.ike = NULL;
117 msg.add_conn.algorithms.esp = NULL;
118
119 msg.add_conn.dpd.delay = 0;
120 msg.add_conn.dpd.action = 1;
121
122 msg.add_conn.me.id = push_string(&msg, my_id);
123 msg.add_conn.me.address = push_string(&msg, my_addr);
124 msg.add_conn.me.subnet = push_string(&msg, my_net);
125 msg.add_conn.me.subnet_mask = my_netmask;
126 msg.add_conn.me.cert = NULL;
127 msg.add_conn.me.ca = NULL;
128 msg.add_conn.me.sendcert = 1;
129 msg.add_conn.me.protocol = 0;
130 msg.add_conn.me.port = 0;
131
132 msg.add_conn.other.id = push_string(&msg, other_id);
133 msg.add_conn.other.address = push_string(&msg, other_addr);
134 msg.add_conn.other.subnet = push_string(&msg, other_net);
135 msg.add_conn.other.subnet_mask = other_netmask;
136 msg.add_conn.other.cert = NULL;
137 msg.add_conn.other.ca = NULL;
138 msg.add_conn.other.sendcert = 1;
139 msg.add_conn.other.protocol = 0;
140 msg.add_conn.other.port = 0;
141
142 return send_stroke_msg(&msg);
143 }
144
145 static int del_connection(char *name)
146 {
147 stroke_msg_t msg;
148
149 msg.length = offsetof(stroke_msg_t, buffer);
150 msg.type = STR_DEL_CONN;
151 msg.initiate.name = push_string(&msg, name);
152 return send_stroke_msg(&msg);
153 }
154
155 static int initiate_connection(char *name)
156 {
157 stroke_msg_t msg;
158
159 msg.length = offsetof(stroke_msg_t, buffer);
160 msg.type = STR_INITIATE;
161 msg.initiate.name = push_string(&msg, name);
162 return send_stroke_msg(&msg);
163 }
164
165 static int terminate_connection(char *name)
166 {
167 stroke_msg_t msg;
168
169 msg.type = STR_TERMINATE;
170 msg.length = offsetof(stroke_msg_t, buffer);
171 msg.initiate.name = push_string(&msg, name);
172 return send_stroke_msg(&msg);
173 }
174
175 static int route_connection(char *name)
176 {
177 stroke_msg_t msg;
178
179 msg.type = STR_ROUTE;
180 msg.length = offsetof(stroke_msg_t, buffer);
181 msg.route.name = push_string(&msg, name);
182 return send_stroke_msg(&msg);
183 }
184
185 static int unroute_connection(char *name)
186 {
187 stroke_msg_t msg;
188
189 msg.type = STR_UNROUTE;
190 msg.length = offsetof(stroke_msg_t, buffer);
191 msg.unroute.name = push_string(&msg, name);
192 return send_stroke_msg(&msg);
193 }
194
195 static int show_status(stroke_keyword_t kw, char *connection)
196 {
197 stroke_msg_t msg;
198
199 msg.type = (kw == STROKE_STATUS)? STR_STATUS:STR_STATUS_ALL;
200 msg.length = offsetof(stroke_msg_t, buffer);
201 msg.status.name = push_string(&msg, connection);
202 return send_stroke_msg(&msg);
203 }
204
205 static int list_flags[] = {
206 LIST_CERTS,
207 LIST_CACERTS,
208 LIST_CRLS,
209 LIST_ALL
210 };
211
212 static int list(stroke_keyword_t kw, bool utc)
213 {
214 stroke_msg_t msg;
215
216 msg.type = STR_LIST;
217 msg.length = offsetof(stroke_msg_t, buffer);
218 msg.list.utc = utc;
219 msg.list.flags = list_flags[kw - STROKE_LIST_FIRST];
220 return send_stroke_msg(&msg);
221 }
222
223 static int reread_flags[] = {
224 REREAD_CACERTS,
225 REREAD_CRLS,
226 REREAD_ALL
227 };
228
229 static int reread(stroke_keyword_t kw)
230 {
231 stroke_msg_t msg;
232
233 msg.type = STR_REREAD;
234 msg.length = offsetof(stroke_msg_t, buffer);
235 msg.reread.flags = reread_flags[kw - STROKE_REREAD_FIRST];
236 return send_stroke_msg(&msg);
237 }
238
239 static int set_logtype(char *context, char *type, int enable)
240 {
241 stroke_msg_t msg;
242
243 msg.type = STR_LOGTYPE;
244 msg.length = offsetof(stroke_msg_t, buffer);
245 msg.logtype.context = push_string(&msg, context);
246 msg.logtype.type = push_string(&msg, type);
247 msg.logtype.enable = enable;
248 return send_stroke_msg(&msg);
249 }
250
251 static int set_loglevel(char *context, u_int level)
252 {
253 stroke_msg_t msg;
254
255 msg.type = STR_LOGLEVEL;
256 msg.length = offsetof(stroke_msg_t, buffer);
257 msg.loglevel.context = push_string(&msg, context);
258 msg.loglevel.level = level;
259 return send_stroke_msg(&msg);
260 }
261
262 static void exit_error(char *error)
263 {
264 if (error)
265 {
266 fprintf(stderr, "%s\n", error);
267 }
268 exit(-1);
269 }
270
271 static void exit_usage(char *error)
272 {
273 printf("Usage:\n");
274 printf(" Add a connection:\n");
275 printf(" stroke add NAME MY_ID OTHER_ID MY_ADDR OTHER_ADDR\\\n");
276 printf(" MY_NET OTHER_NET MY_NETBITS OTHER_NETBITS\n");
277 printf(" where: ID is any IKEv2 ID \n");
278 printf(" ADDR is a IPv4 address\n");
279 printf(" NET is a IPv4 address of the subnet to tunnel\n");
280 printf(" NETBITS is the size of the subnet, as the \"24\" in 192.168.0.0/24\n");
281 printf(" Delete a connection:\n");
282 printf(" stroke delete NAME\n");
283 printf(" where: NAME is a connection name added with \"stroke add\"\n");
284 printf(" Initiate a connection:\n");
285 printf(" stroke up NAME\n");
286 printf(" where: NAME is a connection name added with \"stroke add\"\n");
287 printf(" Terminate a connection:\n");
288 printf(" stroke down NAME\n");
289 printf(" where: NAME is a connection name added with \"stroke add\"\n");
290 printf(" Set logtype for a logging context:\n");
291 printf(" stroke logtype CONTEXT TYPE ENABLE\n");
292 printf(" where: CONTEXT is PARSR|GNRAT|IKESA|SAMGR|CHDSA|MESSG|TPOOL|WORKR|SCHED|\n");
293 printf(" SENDR|RECVR|SOCKT|TESTR|DAEMN|CONFG|ENCPL|PAYLD\n");
294 printf(" TYPE is CONTROL|ERROR|AUDIT|RAW|PRIVATE\n");
295 printf(" ENABLE is 0|1\n");
296 printf(" Set loglevel for a logging context:\n");
297 printf(" stroke loglevel CONTEXT LEVEL\n");
298 printf(" where: CONTEXT is PARSR|GNRAT|IKESA|SAMGR|CHDSA|MESSG|TPOOL|WORKR|SCHED|\n");
299 printf(" SENDR|RECVR|SOCKT|TESTR|DAEMN|CONFG|ENCPL|PAYLD\n");
300 printf(" LEVEL is 0|1|2|3\n");
301 printf(" Show connection status:\n");
302 printf(" stroke status\n");
303 printf(" Show list of locally loaded certificates and crls:\n");
304 printf(" stroke listcerts|listcacerts|listcrls|listall\n");
305 printf(" Reload ca certificates and crls:\n");
306 printf(" stroke rereadcacerts|rereadcrls|rereadall\n");
307 exit_error(error);
308 }
309
310 int main(int argc, char *argv[])
311 {
312 const stroke_token_t *token;
313 int res = 0;
314
315 if (argc < 2)
316 {
317 exit_usage(NULL);
318 }
319
320 token = in_word_set(argv[1], strlen(argv[1]));
321
322 if (token == NULL)
323 {
324 exit_usage("unknown keyword");
325 }
326
327 switch (token->kw)
328 {
329 case STROKE_ADD:
330 if (argc < 11)
331 {
332 exit_usage("\"add\" needs more parameters...");
333 }
334 res = add_connection(argv[2],
335 argv[3], argv[4],
336 argv[5], argv[6],
337 argv[7], argv[8],
338 atoi(argv[9]), atoi(argv[10]));
339 break;
340 case STROKE_DELETE:
341 case STROKE_DEL:
342 if (argc < 3)
343 {
344 exit_usage("\"delete\" needs a connection name");
345 }
346 res = del_connection(argv[2]);
347 break;
348 case STROKE_UP:
349 if (argc < 3)
350 {
351 exit_usage("\"up\" needs a connection name");
352 }
353 res = initiate_connection(argv[2]);
354 break;
355 case STROKE_DOWN:
356 if (argc < 3)
357 {
358 exit_usage("\"down\" needs a connection name");
359 }
360 res = terminate_connection(argv[2]);
361 break;
362 case STROKE_ROUTE:
363 if (argc < 3)
364 {
365 exit_usage("\"route\" needs a connection name");
366 }
367 res = route_connection(argv[2]);
368 break;
369 case STROKE_UNROUTE:
370 if (argc < 3)
371 {
372 exit_usage("\"unroute\" needs a connection name");
373 }
374 res = unroute_connection(argv[2]);
375 break;
376 case STROKE_LOGTYPE:
377 if (argc < 5)
378 {
379 exit_usage("\"logtype\" needs more parameters...");
380 }
381 res = set_logtype(argv[2], argv[3], atoi(argv[4]));
382 break;
383 case STROKE_LOGLEVEL:
384 if (argc < 4)
385 {
386 exit_usage("\"logtype\" needs more parameters...");
387 }
388 res = set_loglevel(argv[2], atoi(argv[3]));
389 break;
390 case STROKE_STATUS:
391 case STROKE_STATUSALL:
392 res = show_status(token->kw, argc > 2 ? argv[2] : NULL);
393 break;
394 case STROKE_LIST_CERTS:
395 case STROKE_LIST_CACERTS:
396 case STROKE_LIST_CRLS:
397 case STROKE_LIST_ALL:
398 res = list(token->kw, argc > 2 && streq(argv[2], "--utc"));
399 break;
400 case STROKE_REREAD_CACERTS:
401 case STROKE_REREAD_CRLS:
402 case STROKE_REREAD_ALL:
403 res = reread(token->kw);
404 break;
405 default:
406 exit_usage(NULL);
407 }
408 return res;
409 }