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