added support for "ike" and "esp" keywords
[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.me.id = push_string(&msg, my_id);
120 msg.add_conn.me.address = push_string(&msg, my_addr);
121 msg.add_conn.me.subnet = push_string(&msg, my_net);
122 msg.add_conn.me.subnet_mask = my_netmask;
123 msg.add_conn.me.cert = NULL;
124 msg.add_conn.me.ca = NULL;
125 msg.add_conn.me.sendcert = CERT_SEND_IF_ASKED;
126
127 msg.add_conn.other.id = push_string(&msg, other_id);
128 msg.add_conn.other.address = push_string(&msg, other_addr);
129 msg.add_conn.other.subnet = push_string(&msg, other_net);
130 msg.add_conn.other.subnet_mask = other_netmask;
131 msg.add_conn.other.cert = NULL;
132 msg.add_conn.other.ca = NULL;
133 msg.add_conn.other.sendcert = CERT_SEND_IF_ASKED;
134
135 return send_stroke_msg(&msg);
136 }
137
138 static int del_connection(char *name)
139 {
140 stroke_msg_t msg;
141
142 msg.length = offsetof(stroke_msg_t, buffer);
143 msg.type = STR_DEL_CONN;
144 msg.initiate.name = push_string(&msg, name);
145 return send_stroke_msg(&msg);
146 }
147
148 static int initiate_connection(char *name)
149 {
150 stroke_msg_t msg;
151
152 msg.length = offsetof(stroke_msg_t, buffer);
153 msg.type = STR_INITIATE;
154 msg.initiate.name = push_string(&msg, name);
155 return send_stroke_msg(&msg);
156 }
157
158 static int terminate_connection(char *name)
159 {
160 stroke_msg_t msg;
161
162 msg.type = STR_TERMINATE;
163 msg.length = offsetof(stroke_msg_t, buffer);
164 msg.initiate.name = push_string(&msg, name);
165 return send_stroke_msg(&msg);
166 }
167
168 static int show_status(stroke_keyword_t kw, char *connection)
169 {
170 stroke_msg_t msg;
171
172 msg.type = (kw == STROKE_STATUS)? STR_STATUS:STR_STATUS_ALL;
173 msg.length = offsetof(stroke_msg_t, buffer);
174 msg.status.name = push_string(&msg, connection);
175 return send_stroke_msg(&msg);
176 }
177
178 static int list_flags[] = {
179 LIST_CERTS,
180 LIST_CACERTS,
181 LIST_CRLS,
182 LIST_ALL
183 };
184
185 static int list(stroke_keyword_t kw, bool utc)
186 {
187 stroke_msg_t msg;
188
189 msg.type = STR_LIST;
190 msg.length = offsetof(stroke_msg_t, buffer);
191 msg.list.utc = utc;
192 msg.list.flags = list_flags[kw - STROKE_LIST_FIRST];
193 return send_stroke_msg(&msg);
194 }
195
196 static int set_logtype(char *context, char *type, int enable)
197 {
198 stroke_msg_t msg;
199
200 msg.type = STR_LOGTYPE;
201 msg.length = offsetof(stroke_msg_t, buffer);
202 msg.logtype.context = push_string(&msg, context);
203 msg.logtype.type = push_string(&msg, type);
204 msg.logtype.enable = enable;
205 return send_stroke_msg(&msg);
206 }
207
208 static int set_loglevel(char *context, u_int level)
209 {
210 stroke_msg_t msg;
211
212 msg.type = STR_LOGLEVEL;
213 msg.length = offsetof(stroke_msg_t, buffer);
214 msg.loglevel.context = push_string(&msg, context);
215 msg.loglevel.level = level;
216 return send_stroke_msg(&msg);
217 }
218
219 static void exit_error(char *error)
220 {
221 if (error)
222 {
223 fprintf(stderr, "%s\n", error);
224 }
225 exit(-1);
226 }
227
228 static void exit_usage(char *error)
229 {
230 printf("Usage:\n");
231 printf(" Add a connection:\n");
232 printf(" stroke add NAME MY_ID OTHER_ID MY_ADDR OTHER_ADDR\\\n");
233 printf(" MY_NET OTHER_NET MY_NETBITS OTHER_NETBITS\n");
234 printf(" where: ID is any IKEv2 ID \n");
235 printf(" ADDR is a IPv4 address\n");
236 printf(" NET is a IPv4 address of the subnet to tunnel\n");
237 printf(" NETBITS is the size of the subnet, as the \"24\" in 192.168.0.0/24\n");
238 printf(" Delete a connection:\n");
239 printf(" stroke delete NAME\n");
240 printf(" where: NAME is a connection name added with \"stroke add\"\n");
241 printf(" Initiate a connection:\n");
242 printf(" stroke up NAME\n");
243 printf(" where: NAME is a connection name added with \"stroke add\"\n");
244 printf(" Terminate a connection:\n");
245 printf(" stroke down NAME\n");
246 printf(" where: NAME is a connection name added with \"stroke add\"\n");
247 printf(" Set logtype for a logging context:\n");
248 printf(" stroke logtype CONTEXT TYPE ENABLE\n");
249 printf(" where: CONTEXT is PARSR|GNRAT|IKESA|SAMGR|CHDSA|MESSG|TPOOL|WORKR|SCHED|\n");
250 printf(" SENDR|RECVR|SOCKT|TESTR|DAEMN|CONFG|ENCPL|PAYLD\n");
251 printf(" TYPE is CONTROL|ERROR|AUDIT|RAW|PRIVATE\n");
252 printf(" ENABLE is 0|1\n");
253 printf(" Set loglevel for a logging context:\n");
254 printf(" stroke loglevel CONTEXT LEVEL\n");
255 printf(" where: CONTEXT is PARSR|GNRAT|IKESA|SAMGR|CHDSA|MESSG|TPOOL|WORKR|SCHED|\n");
256 printf(" SENDR|RECVR|SOCKT|TESTR|DAEMN|CONFG|ENCPL|PAYLD\n");
257 printf(" LEVEL is 0|1|2|3\n");
258 printf(" Show connection status:\n");
259 printf(" stroke status\n");
260 printf(" Show list of locally loaded certificates:\n");
261 printf(" stroke listcerts\n");
262 exit_error(error);
263 }
264
265 int main(int argc, char *argv[])
266 {
267 const stroke_token_t *token;
268 int res = 0;
269
270 if (argc < 2)
271 {
272 exit_usage(NULL);
273 }
274
275 token = in_word_set(argv[1], strlen(argv[1]));
276
277 if (token == NULL)
278 {
279 exit_usage("unknown keyword");
280 }
281
282 switch (token->kw)
283 {
284 case STROKE_ADD:
285 if (argc < 11)
286 {
287 exit_usage("\"add\" needs more parameters...");
288 }
289 res = add_connection(argv[2],
290 argv[3], argv[4],
291 argv[5], argv[6],
292 argv[7], argv[8],
293 atoi(argv[9]), atoi(argv[10]));
294 break;
295 case STROKE_DELETE:
296 case STROKE_DEL:
297 if (argc < 3)
298 {
299 exit_usage("\"delete\" needs a connection name");
300 }
301 res = del_connection(argv[2]);
302 break;
303 case STROKE_UP:
304 if (argc < 3)
305 {
306 exit_usage("\"up\" needs a connection name");
307 }
308 res = initiate_connection(argv[2]);
309 break;
310 case STROKE_DOWN:
311 if (argc < 3)
312 {
313 exit_usage("\"down\" needs a connection name");
314 }
315 res = terminate_connection(argv[2]);
316 break;
317 case STROKE_LOGTYPE:
318 if (argc < 5)
319 {
320 exit_usage("\"logtype\" needs more parameters...");
321 }
322 res = set_logtype(argv[2], argv[3], atoi(argv[4]));
323 break;
324 case STROKE_LOGLEVEL:
325 if (argc < 4)
326 {
327 exit_usage("\"logtype\" needs more parameters...");
328 }
329 res = set_loglevel(argv[2], atoi(argv[3]));
330 break;
331 case STROKE_STATUS:
332 case STROKE_STATUSALL:
333 res = show_status(token->kw, argc > 2 ? argv[2] : NULL);
334 break;
335 case STROKE_LIST_CERTS:
336 case STROKE_LIST_CACERTS:
337 case STROKE_LIST_CRLS:
338 case STROKE_LIST_ALL:
339 res = list(token->kw, argc > 2 && streq(argv[2], "--utc"));
340 break;
341 default:
342 exit_usage(NULL);
343 }
344 return res;
345 }