ebb12b71019926ff43b0ea66453910352a2541da
[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 <stddef.h>
26
27 #include "stroke.h"
28 #include "stroke_keywords.h"
29
30 struct stroke_token {
31 char *name;
32 stroke_keyword_t kw;
33 };
34
35 static char* push_string(stroke_msg_t *msg, char *string)
36 {
37 unsigned long string_start = msg->length;
38
39 if (string == NULL || msg->length + strlen(string) >= sizeof(stroke_msg_t))
40 {
41 return NULL;
42 }
43 else
44 {
45 msg->length += strlen(string) + 1;
46 strcpy((char*)msg + string_start, string);
47 return (char*)string_start;
48 }
49 }
50
51 static int send_stroke_msg (stroke_msg_t *msg)
52 {
53 struct sockaddr_un ctl_addr = { AF_UNIX, STROKE_SOCKET };
54 int sock;
55 char buffer[64];
56 int byte_count;
57
58 msg->output_verbosity = 1; /* CONTROL */
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 msg.add_conn.auth_method = 2;
110 msg.add_conn.eap_type = 0;
111 msg.add_conn.mode = 1;
112
113 msg.add_conn.rekey.reauth = 0;
114 msg.add_conn.rekey.ipsec_lifetime = 0;
115 msg.add_conn.rekey.ike_lifetime = 0;
116 msg.add_conn.rekey.margin = 0;
117 msg.add_conn.rekey.tries = 0;
118 msg.add_conn.rekey.fuzz = 0;
119
120 msg.add_conn.algorithms.ike = NULL;
121 msg.add_conn.algorithms.esp = NULL;
122
123 msg.add_conn.dpd.delay = 0;
124 msg.add_conn.dpd.action = 1;
125
126 msg.add_conn.me.id = push_string(&msg, my_id);
127 msg.add_conn.me.address = push_string(&msg, my_addr);
128 msg.add_conn.me.subnet = push_string(&msg, my_net);
129 msg.add_conn.me.subnet_mask = my_netmask;
130 msg.add_conn.me.cert = NULL;
131 msg.add_conn.me.ca = NULL;
132 msg.add_conn.me.sendcert = 1;
133 msg.add_conn.me.hostaccess = 0;
134 msg.add_conn.me.protocol = 0;
135 msg.add_conn.me.port = 0;
136
137 msg.add_conn.other.id = push_string(&msg, other_id);
138 msg.add_conn.other.address = push_string(&msg, other_addr);
139 msg.add_conn.other.subnet = push_string(&msg, other_net);
140 msg.add_conn.other.subnet_mask = other_netmask;
141 msg.add_conn.other.cert = NULL;
142 msg.add_conn.other.ca = NULL;
143 msg.add_conn.other.sendcert = 1;
144 msg.add_conn.other.hostaccess = 0;
145 msg.add_conn.other.protocol = 0;
146 msg.add_conn.other.port = 0;
147
148 return send_stroke_msg(&msg);
149 }
150
151 static int del_connection(char *name)
152 {
153 stroke_msg_t msg;
154
155 msg.length = offsetof(stroke_msg_t, buffer);
156 msg.type = STR_DEL_CONN;
157 msg.initiate.name = push_string(&msg, name);
158 return send_stroke_msg(&msg);
159 }
160
161 static int initiate_connection(char *name)
162 {
163 stroke_msg_t msg;
164
165 msg.length = offsetof(stroke_msg_t, buffer);
166 msg.type = STR_INITIATE;
167 msg.initiate.name = push_string(&msg, name);
168 return send_stroke_msg(&msg);
169 }
170
171 static int terminate_connection(char *name)
172 {
173 stroke_msg_t msg;
174
175 msg.type = STR_TERMINATE;
176 msg.length = offsetof(stroke_msg_t, buffer);
177 msg.initiate.name = push_string(&msg, name);
178 return send_stroke_msg(&msg);
179 }
180
181 static int route_connection(char *name)
182 {
183 stroke_msg_t msg;
184
185 msg.type = STR_ROUTE;
186 msg.length = offsetof(stroke_msg_t, buffer);
187 msg.route.name = push_string(&msg, name);
188 return send_stroke_msg(&msg);
189 }
190
191 static int unroute_connection(char *name)
192 {
193 stroke_msg_t msg;
194
195 msg.type = STR_UNROUTE;
196 msg.length = offsetof(stroke_msg_t, buffer);
197 msg.unroute.name = push_string(&msg, name);
198 return send_stroke_msg(&msg);
199 }
200
201 static int show_status(stroke_keyword_t kw, char *connection)
202 {
203 stroke_msg_t msg;
204
205 msg.type = (kw == STROKE_STATUS)? STR_STATUS:STR_STATUS_ALL;
206 msg.length = offsetof(stroke_msg_t, buffer);
207 msg.status.name = push_string(&msg, connection);
208 return send_stroke_msg(&msg);
209 }
210
211 static int list_flags[] = {
212 LIST_CERTS,
213 LIST_CACERTS,
214 LIST_CRLS,
215 LIST_ALL
216 };
217
218 static int list(stroke_keyword_t kw, int utc)
219 {
220 stroke_msg_t msg;
221
222 msg.type = STR_LIST;
223 msg.length = offsetof(stroke_msg_t, buffer);
224 msg.list.utc = utc;
225 msg.list.flags = list_flags[kw - STROKE_LIST_FIRST];
226 return send_stroke_msg(&msg);
227 }
228
229 static int reread_flags[] = {
230 REREAD_CACERTS,
231 REREAD_CRLS,
232 REREAD_ALL
233 };
234
235 static int reread(stroke_keyword_t kw)
236 {
237 stroke_msg_t msg;
238
239 msg.type = STR_REREAD;
240 msg.length = offsetof(stroke_msg_t, buffer);
241 msg.reread.flags = reread_flags[kw - STROKE_REREAD_FIRST];
242 return send_stroke_msg(&msg);
243 }
244
245 static int set_loglevel(char *type, u_int level)
246 {
247 stroke_msg_t msg;
248
249 msg.type = STR_LOGLEVEL;
250 msg.length = offsetof(stroke_msg_t, buffer);
251 msg.loglevel.type = push_string(&msg, type);
252 msg.loglevel.level = level;
253 return send_stroke_msg(&msg);
254 }
255
256 static void exit_error(char *error)
257 {
258 if (error)
259 {
260 fprintf(stderr, "%s\n", error);
261 }
262 exit(-1);
263 }
264
265 static void exit_usage(char *error)
266 {
267 printf("Usage:\n");
268 printf(" Add a connection:\n");
269 printf(" stroke add NAME MY_ID OTHER_ID MY_ADDR OTHER_ADDR\\\n");
270 printf(" MY_NET OTHER_NET MY_NETBITS OTHER_NETBITS\n");
271 printf(" where: ID is any IKEv2 ID \n");
272 printf(" ADDR is a IPv4 address\n");
273 printf(" NET is a IPv4 address of the subnet to tunnel\n");
274 printf(" NETBITS is the size of the subnet, as the \"24\" in 192.168.0.0/24\n");
275 printf(" Delete a connection:\n");
276 printf(" stroke delete NAME\n");
277 printf(" where: NAME is a connection name added with \"stroke add\"\n");
278 printf(" Initiate a connection:\n");
279 printf(" stroke up NAME\n");
280 printf(" where: NAME is a connection name added with \"stroke add\"\n");
281 printf(" Terminate a connection:\n");
282 printf(" stroke down NAME\n");
283 printf(" where: NAME is a connection name added with \"stroke add\"\n");
284 printf(" Set loglevel for a logging type:\n");
285 printf(" stroke loglevel TYPE LEVEL\n");
286 printf(" where: TYPE is any|dmn|mgr|ike|chd|job|cfg|knl|net|enc|lib\n");
287 printf(" LEVEL is -1|0|1|2|3|4\n");
288 printf(" Show connection status:\n");
289 printf(" stroke status\n");
290 printf(" Show list of locally loaded certificates and crls:\n");
291 printf(" stroke listcerts|listcacerts|listcrls|listall\n");
292 printf(" Reload ca certificates and crls:\n");
293 printf(" stroke rereadcacerts|rereadcrls|rereadall\n");
294 exit_error(error);
295 }
296
297 int main(int argc, char *argv[])
298 {
299 const stroke_token_t *token;
300 int res = 0;
301
302 if (argc < 2)
303 {
304 exit_usage(NULL);
305 }
306
307 token = in_word_set(argv[1], strlen(argv[1]));
308
309 if (token == NULL)
310 {
311 exit_usage("unknown keyword");
312 }
313
314 switch (token->kw)
315 {
316 case STROKE_ADD:
317 if (argc < 11)
318 {
319 exit_usage("\"add\" needs more parameters...");
320 }
321 res = add_connection(argv[2],
322 argv[3], argv[4],
323 argv[5], argv[6],
324 argv[7], argv[8],
325 atoi(argv[9]), atoi(argv[10]));
326 break;
327 case STROKE_DELETE:
328 case STROKE_DEL:
329 if (argc < 3)
330 {
331 exit_usage("\"delete\" needs a connection name");
332 }
333 res = del_connection(argv[2]);
334 break;
335 case STROKE_UP:
336 if (argc < 3)
337 {
338 exit_usage("\"up\" needs a connection name");
339 }
340 res = initiate_connection(argv[2]);
341 break;
342 case STROKE_DOWN:
343 if (argc < 3)
344 {
345 exit_usage("\"down\" needs a connection name");
346 }
347 res = terminate_connection(argv[2]);
348 break;
349 case STROKE_ROUTE:
350 if (argc < 3)
351 {
352 exit_usage("\"route\" needs a connection name");
353 }
354 res = route_connection(argv[2]);
355 break;
356 case STROKE_UNROUTE:
357 if (argc < 3)
358 {
359 exit_usage("\"unroute\" needs a connection name");
360 }
361 res = unroute_connection(argv[2]);
362 break;
363 case STROKE_LOGLEVEL:
364 if (argc < 4)
365 {
366 exit_usage("\"logtype\" needs more parameters...");
367 }
368 res = set_loglevel(argv[2], atoi(argv[3]));
369 break;
370 case STROKE_STATUS:
371 case STROKE_STATUSALL:
372 res = show_status(token->kw, argc > 2 ? argv[2] : NULL);
373 break;
374 case STROKE_LIST_CERTS:
375 case STROKE_LIST_CACERTS:
376 case STROKE_LIST_CRLS:
377 case STROKE_LIST_ALL:
378 res = list(token->kw, argc > 2 && strcmp(argv[2], "--utc") == 0);
379 break;
380 case STROKE_REREAD_CACERTS:
381 case STROKE_REREAD_CRLS:
382 case STROKE_REREAD_ALL:
383 res = reread(token->kw);
384 break;
385 default:
386 exit_usage(NULL);
387 }
388 return res;
389 }