implemented reauthentication using the new reauth=yes|no parameter
[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
110 msg.add_conn.rekey.reauth = 0;
111 msg.add_conn.rekey.ipsec_lifetime = 0;
112 msg.add_conn.rekey.ike_lifetime = 0;
113 msg.add_conn.rekey.margin = 0;
114 msg.add_conn.rekey.tries = 0;
115 msg.add_conn.rekey.fuzz = 0;
116
117 msg.add_conn.algorithms.ike = NULL;
118 msg.add_conn.algorithms.esp = NULL;
119
120 msg.add_conn.dpd.delay = 0;
121 msg.add_conn.dpd.action = 1;
122
123 msg.add_conn.me.id = push_string(&msg, my_id);
124 msg.add_conn.me.address = push_string(&msg, my_addr);
125 msg.add_conn.me.subnet = push_string(&msg, my_net);
126 msg.add_conn.me.subnet_mask = my_netmask;
127 msg.add_conn.me.cert = NULL;
128 msg.add_conn.me.ca = NULL;
129 msg.add_conn.me.sendcert = 1;
130 msg.add_conn.me.hostaccess = 0;
131 msg.add_conn.me.protocol = 0;
132 msg.add_conn.me.port = 0;
133
134 msg.add_conn.other.id = push_string(&msg, other_id);
135 msg.add_conn.other.address = push_string(&msg, other_addr);
136 msg.add_conn.other.subnet = push_string(&msg, other_net);
137 msg.add_conn.other.subnet_mask = other_netmask;
138 msg.add_conn.other.cert = NULL;
139 msg.add_conn.other.ca = NULL;
140 msg.add_conn.other.sendcert = 1;
141 msg.add_conn.other.hostaccess = 0;
142 msg.add_conn.other.protocol = 0;
143 msg.add_conn.other.port = 0;
144
145 return send_stroke_msg(&msg);
146 }
147
148 static int del_connection(char *name)
149 {
150 stroke_msg_t msg;
151
152 msg.length = offsetof(stroke_msg_t, buffer);
153 msg.type = STR_DEL_CONN;
154 msg.initiate.name = push_string(&msg, name);
155 return send_stroke_msg(&msg);
156 }
157
158 static int initiate_connection(char *name)
159 {
160 stroke_msg_t msg;
161
162 msg.length = offsetof(stroke_msg_t, buffer);
163 msg.type = STR_INITIATE;
164 msg.initiate.name = push_string(&msg, name);
165 return send_stroke_msg(&msg);
166 }
167
168 static int terminate_connection(char *name)
169 {
170 stroke_msg_t msg;
171
172 msg.type = STR_TERMINATE;
173 msg.length = offsetof(stroke_msg_t, buffer);
174 msg.initiate.name = push_string(&msg, name);
175 return send_stroke_msg(&msg);
176 }
177
178 static int route_connection(char *name)
179 {
180 stroke_msg_t msg;
181
182 msg.type = STR_ROUTE;
183 msg.length = offsetof(stroke_msg_t, buffer);
184 msg.route.name = push_string(&msg, name);
185 return send_stroke_msg(&msg);
186 }
187
188 static int unroute_connection(char *name)
189 {
190 stroke_msg_t msg;
191
192 msg.type = STR_UNROUTE;
193 msg.length = offsetof(stroke_msg_t, buffer);
194 msg.unroute.name = push_string(&msg, name);
195 return send_stroke_msg(&msg);
196 }
197
198 static int show_status(stroke_keyword_t kw, char *connection)
199 {
200 stroke_msg_t msg;
201
202 msg.type = (kw == STROKE_STATUS)? STR_STATUS:STR_STATUS_ALL;
203 msg.length = offsetof(stroke_msg_t, buffer);
204 msg.status.name = push_string(&msg, connection);
205 return send_stroke_msg(&msg);
206 }
207
208 static int list_flags[] = {
209 LIST_CERTS,
210 LIST_CACERTS,
211 LIST_CRLS,
212 LIST_ALL
213 };
214
215 static int list(stroke_keyword_t kw, int utc)
216 {
217 stroke_msg_t msg;
218
219 msg.type = STR_LIST;
220 msg.length = offsetof(stroke_msg_t, buffer);
221 msg.list.utc = utc;
222 msg.list.flags = list_flags[kw - STROKE_LIST_FIRST];
223 return send_stroke_msg(&msg);
224 }
225
226 static int reread_flags[] = {
227 REREAD_CACERTS,
228 REREAD_CRLS,
229 REREAD_ALL
230 };
231
232 static int reread(stroke_keyword_t kw)
233 {
234 stroke_msg_t msg;
235
236 msg.type = STR_REREAD;
237 msg.length = offsetof(stroke_msg_t, buffer);
238 msg.reread.flags = reread_flags[kw - STROKE_REREAD_FIRST];
239 return send_stroke_msg(&msg);
240 }
241
242 static int set_loglevel(char *type, u_int level)
243 {
244 stroke_msg_t msg;
245
246 msg.type = STR_LOGLEVEL;
247 msg.length = offsetof(stroke_msg_t, buffer);
248 msg.loglevel.type = push_string(&msg, type);
249 msg.loglevel.level = level;
250 return send_stroke_msg(&msg);
251 }
252
253 static void exit_error(char *error)
254 {
255 if (error)
256 {
257 fprintf(stderr, "%s\n", error);
258 }
259 exit(-1);
260 }
261
262 static void exit_usage(char *error)
263 {
264 printf("Usage:\n");
265 printf(" Add a connection:\n");
266 printf(" stroke add NAME MY_ID OTHER_ID MY_ADDR OTHER_ADDR\\\n");
267 printf(" MY_NET OTHER_NET MY_NETBITS OTHER_NETBITS\n");
268 printf(" where: ID is any IKEv2 ID \n");
269 printf(" ADDR is a IPv4 address\n");
270 printf(" NET is a IPv4 address of the subnet to tunnel\n");
271 printf(" NETBITS is the size of the subnet, as the \"24\" in 192.168.0.0/24\n");
272 printf(" Delete a connection:\n");
273 printf(" stroke delete NAME\n");
274 printf(" where: NAME is a connection name added with \"stroke add\"\n");
275 printf(" Initiate a connection:\n");
276 printf(" stroke up NAME\n");
277 printf(" where: NAME is a connection name added with \"stroke add\"\n");
278 printf(" Terminate a connection:\n");
279 printf(" stroke down NAME\n");
280 printf(" where: NAME is a connection name added with \"stroke add\"\n");
281 printf(" Set loglevel for a logging type:\n");
282 printf(" stroke loglevel TYPE LEVEL\n");
283 printf(" where: TYPE is any|dmn|mgr|ike|chd|job|cfg|knl|net|enc|lib\n");
284 printf(" LEVEL is -1|0|1|2|3|4\n");
285 printf(" Show connection status:\n");
286 printf(" stroke status\n");
287 printf(" Show list of locally loaded certificates and crls:\n");
288 printf(" stroke listcerts|listcacerts|listcrls|listall\n");
289 printf(" Reload ca certificates and crls:\n");
290 printf(" stroke rereadcacerts|rereadcrls|rereadall\n");
291 exit_error(error);
292 }
293
294 int main(int argc, char *argv[])
295 {
296 const stroke_token_t *token;
297 int res = 0;
298
299 if (argc < 2)
300 {
301 exit_usage(NULL);
302 }
303
304 token = in_word_set(argv[1], strlen(argv[1]));
305
306 if (token == NULL)
307 {
308 exit_usage("unknown keyword");
309 }
310
311 switch (token->kw)
312 {
313 case STROKE_ADD:
314 if (argc < 11)
315 {
316 exit_usage("\"add\" needs more parameters...");
317 }
318 res = add_connection(argv[2],
319 argv[3], argv[4],
320 argv[5], argv[6],
321 argv[7], argv[8],
322 atoi(argv[9]), atoi(argv[10]));
323 break;
324 case STROKE_DELETE:
325 case STROKE_DEL:
326 if (argc < 3)
327 {
328 exit_usage("\"delete\" needs a connection name");
329 }
330 res = del_connection(argv[2]);
331 break;
332 case STROKE_UP:
333 if (argc < 3)
334 {
335 exit_usage("\"up\" needs a connection name");
336 }
337 res = initiate_connection(argv[2]);
338 break;
339 case STROKE_DOWN:
340 if (argc < 3)
341 {
342 exit_usage("\"down\" needs a connection name");
343 }
344 res = terminate_connection(argv[2]);
345 break;
346 case STROKE_ROUTE:
347 if (argc < 3)
348 {
349 exit_usage("\"route\" needs a connection name");
350 }
351 res = route_connection(argv[2]);
352 break;
353 case STROKE_UNROUTE:
354 if (argc < 3)
355 {
356 exit_usage("\"unroute\" needs a connection name");
357 }
358 res = unroute_connection(argv[2]);
359 break;
360 case STROKE_LOGLEVEL:
361 if (argc < 4)
362 {
363 exit_usage("\"logtype\" needs more parameters...");
364 }
365 res = set_loglevel(argv[2], atoi(argv[3]));
366 break;
367 case STROKE_STATUS:
368 case STROKE_STATUSALL:
369 res = show_status(token->kw, argc > 2 ? argv[2] : NULL);
370 break;
371 case STROKE_LIST_CERTS:
372 case STROKE_LIST_CACERTS:
373 case STROKE_LIST_CRLS:
374 case STROKE_LIST_ALL:
375 res = list(token->kw, argc > 2 && strcmp(argv[2], "--utc") == 0);
376 break;
377 case STROKE_REREAD_CACERTS:
378 case STROKE_REREAD_CRLS:
379 case STROKE_REREAD_ALL:
380 res = reread(token->kw);
381 break;
382 default:
383 exit_usage(NULL);
384 }
385 return res;
386 }