ed1f04e773d4139619084d3f45e87dbc3c874e2a
[strongswan.git] / src / libcharon / plugins / tnc_ifmap / tnc_ifmap_listener.c
1 /*
2 * Copyright (C) 2011 Andreas Steffen
3 * HSR Hochschule fuer Technik Rapperswil
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * for more details.
14 */
15
16 #include "tnc_ifmap_listener.h"
17
18 #include <daemon.h>
19 #include <config/child_cfg.h>
20
21 #include <axis2_util.h>
22 #include <axis2_client.h>
23 #include <axiom_soap.h>
24
25 #define IFMAP_NS "http://www.trustedcomputinggroup.org/2010/IFMAP/2"
26 #define IFMAP_META_NS "http://www.trustedcomputinggroup.org/2010/IFMAP-METADATA/2"
27 #define IFMAP_LOGFILE "strongswan_ifmap.log"
28 #define IFMAP_SERVER "https://localhost:8443/"
29
30 typedef struct private_tnc_ifmap_listener_t private_tnc_ifmap_listener_t;
31
32 /**
33 * Private data of an tnc_ifmap_listener_t object.
34 */
35 struct private_tnc_ifmap_listener_t {
36
37 /**
38 * Public tnc_ifmap_listener_t interface.
39 */
40 tnc_ifmap_listener_t public;
41
42 /**
43 * Axis2/C environment
44 */
45 axutil_env_t *env;
46
47 /**
48 * Axis2 service client
49 */
50 axis2_svc_client_t* svc_client;
51
52 /**
53 * SOAP Session ID
54 */
55 char *session_id;
56
57 /**
58 * IF-MAP Publisher ID
59 */
60 char *ifmap_publisher_id;
61
62 };
63
64 static bool newSession(private_tnc_ifmap_listener_t *this)
65 {
66 axiom_node_t *request, *result, *node;
67 axiom_element_t *el;
68 axiom_namespace_t *ns;
69 axiom_attribute_t *attr;
70 axis2_char_t *value;
71 axutil_qname_t *qname;
72
73 bool success = FALSE;
74
75 /* build newSession request */
76 ns = axiom_namespace_create(this->env, IFMAP_NS, "ifmap");
77 el = axiom_element_create(this->env, NULL, "newSession", ns, &request);
78 attr = axiom_attribute_create(this->env, "max-poll-result-size", "1000000", NULL);
79 axiom_element_add_attribute(el, this->env, attr, request);
80
81 /* send newSession request */
82 result = axis2_svc_client_send_receive(this->svc_client, this->env, request);
83 if (!result)
84 {
85 return FALSE;
86 }
87
88 /* process newSessionResult */
89 node = axiom_node_get_first_child(result, this->env);
90 if (node && axiom_node_get_node_type(node, this->env) == AXIOM_ELEMENT)
91 {
92 el = (axiom_element_t *)axiom_node_get_data_element(node, this->env);
93 qname = axiom_element_get_qname(el, this->env, node);
94 success = streq("newSessionResult",
95 axutil_qname_to_string(qname, this->env));
96
97 /* process the attributes */
98 if (success)
99 {
100 value = axiom_element_get_attribute_value_by_name(el, this->env,
101 "session-id");
102 this->session_id = strdup(value);
103 value = axiom_element_get_attribute_value_by_name(el, this->env,
104 "ifmap-publisher-id");
105 this->ifmap_publisher_id = strdup(value);
106
107 DBG1(DBG_TNC, "session-id: %s, ifmap-publisher-id: %s",
108 this->session_id, this->ifmap_publisher_id);
109 success = this->session_id && this->ifmap_publisher_id;
110
111 value = axiom_element_get_attribute_value_by_name(el, this->env,
112 "max-poll-result-size");
113 if (value)
114 {
115 DBG1(DBG_TNC, "max-poll-result-size: %s", value);
116 }
117 }
118 else
119 {
120 DBG1(DBG_TNC, "%s", axiom_element_to_string(el, this->env, node));
121 }
122 }
123 axiom_node_free_tree(result, this->env);
124
125 return success;
126 }
127
128 static bool purgePublisher(private_tnc_ifmap_listener_t *this)
129 {
130 axiom_node_t *request, *result, *node;
131 axiom_element_t *el;
132 axiom_namespace_t *ns;
133 axiom_attribute_t *attr;
134 axutil_qname_t *qname;
135 bool success = FALSE;
136
137 /* build purgePublisher request */
138 ns = axiom_namespace_create(this->env, IFMAP_NS, "ifmap");
139 el = axiom_element_create(this->env, NULL, "purgePublisher", ns,
140 &request);
141 attr = axiom_attribute_create(this->env, "session-id",
142 this->session_id, NULL);
143 axiom_element_add_attribute(el, this->env, attr, request);
144 attr = axiom_attribute_create(this->env, "ifmap-publisher-id",
145 this->ifmap_publisher_id, NULL);
146 axiom_element_add_attribute(el, this->env, attr, request);
147
148 /* send purgePublisher request */
149 result = axis2_svc_client_send_receive(this->svc_client, this->env, request);
150 if (!result)
151 {
152 return FALSE;
153 }
154
155 /* process purgePublisherReceived */
156 node = axiom_node_get_first_child(result, this->env);
157 if (node && axiom_node_get_node_type(node, this->env) == AXIOM_ELEMENT)
158 {
159 el = (axiom_element_t *)axiom_node_get_data_element(node, this->env);
160 qname = axiom_element_get_qname(el, this->env, node);
161 success = streq("purgePublisherReceived",
162 axutil_qname_to_string(qname, this->env));
163 if (!success)
164 {
165 DBG1(DBG_TNC, "%s", axiom_element_to_string(el, this->env, node));
166 }
167 }
168 axiom_node_free_tree(result, this->env);
169
170 return success;
171 }
172
173 static bool publish(private_tnc_ifmap_listener_t *this, u_int32_t ike_sa_id,
174 identification_t *id, host_t *host, bool up)
175 {
176 axiom_node_t *request, *result, *node, *node2, *node3, *node4;
177 axiom_element_t *el;
178 axiom_namespace_t *ns, *ns_meta;
179 axiom_attribute_t *attr;
180 axiom_text_t *text;
181 axutil_qname_t *qname;
182 char buf[BUF_LEN], *id_type;
183 bool success = FALSE;
184
185 /* build publish request */
186 ns = axiom_namespace_create(this->env, IFMAP_NS, "ifmap");
187 el = axiom_element_create(this->env, NULL, "publish", ns, &request);
188 attr = axiom_attribute_create(this->env, "session-id", this->session_id,
189 NULL);
190 axiom_element_add_attribute(el, this->env, attr, request);
191
192 /**
193 * update or delete authenticated-as metadata
194 */
195 if (up)
196 {
197 el = axiom_element_create(this->env, NULL, "update", NULL, &node);
198 axiom_node_add_child(request, this->env, node);
199 }
200 else
201 {
202 el = axiom_element_create(this->env, NULL, "delete", NULL, &node);
203 axiom_node_add_child(request, this->env, node);
204
205 /* add filter */
206 attr = axiom_attribute_create(this->env, "filter",
207 "authenticated-as", NULL);
208 axiom_element_add_attribute(el, this->env, attr, node);
209 }
210
211 /* add access-request */
212 el = axiom_element_create(this->env, NULL, "access-request", NULL, &node2);
213 axiom_node_add_child(node, this->env, node2);
214
215 snprintf(buf, BUF_LEN, "%s:%d", this->ifmap_publisher_id, ike_sa_id);
216 attr = axiom_attribute_create(this->env, "name", buf, NULL);
217 axiom_element_add_attribute(el, this->env, attr, node2);
218
219 /* add identity */
220 el = axiom_element_create(this->env, NULL, "identity", NULL, &node2);
221 axiom_node_add_child(node, this->env, node2);
222
223 snprintf(buf, BUF_LEN, "%Y", id);
224 attr = axiom_attribute_create(this->env, "name", buf, NULL);
225 axiom_element_add_attribute(el, this->env, attr, node2);
226
227 switch (id->get_type(id))
228 {
229 case ID_FQDN:
230 id_type = "dns-name";
231 break;
232 case ID_RFC822_ADDR:
233 id_type = "email-address";
234 break;
235 case ID_DER_ASN1_DN:
236 id_type = "distinguished-name";
237 break;
238 default:
239 id_type = "other";
240 }
241 attr = axiom_attribute_create(this->env, "type", id_type, NULL);
242 axiom_element_add_attribute(el, this->env, attr, node2);
243
244 if (up)
245 {
246 /* add metadata */
247 el = axiom_element_create(this->env, NULL, "metadata", NULL, &node2);
248 axiom_node_add_child(node, this->env, node2);
249
250 ns_meta = axiom_namespace_create(this->env, IFMAP_META_NS, "meta");
251
252 el = axiom_element_create(this->env, NULL, "authenticated-as", ns_meta,
253 &node3);
254 axiom_node_add_child(node2, this->env, node3);
255 attr = axiom_attribute_create(this->env, "ifmap-cardinality",
256 "singleValue", NULL);
257 axiom_element_add_attribute(el, this->env, attr, node3);
258 }
259
260 /**
261 * update or delete access-request-ip metadata
262 */
263 if (up)
264 {
265 el = axiom_element_create(this->env, NULL, "update", NULL, &node);
266 axiom_node_add_child(request, this->env, node);
267 }
268 else
269 {
270 el = axiom_element_create(this->env, NULL, "delete", NULL, &node);
271 axiom_node_add_child(request, this->env, node);
272
273 /* add filter */
274 attr = axiom_attribute_create(this->env, "filter",
275 "access-request-ip", NULL);
276 axiom_element_add_attribute(el, this->env, attr, node);
277 }
278
279 /* add access-request */
280 el = axiom_element_create(this->env, NULL, "access-request", NULL, &node2);
281 axiom_node_add_child(node, this->env, node2);
282
283 snprintf(buf, BUF_LEN, "%s:%d", this->ifmap_publisher_id, ike_sa_id);
284 attr = axiom_attribute_create(this->env, "name", buf, NULL);
285 axiom_element_add_attribute(el, this->env, attr, node2);
286
287 /* add ip-address */
288 el = axiom_element_create(this->env, NULL, "ip-address", NULL, &node2);
289 axiom_node_add_child(node, this->env, node2);
290
291 snprintf(buf, BUF_LEN, "%H", host);
292 attr = axiom_attribute_create(this->env, "value", buf, NULL);
293 axiom_element_add_attribute(el, this->env, attr, node2);
294
295 attr = axiom_attribute_create(this->env, "type",
296 host->get_family(host) == AF_INET ? "IPv4" : "IPv6", NULL);
297 axiom_element_add_attribute(el, this->env, attr, node2);
298
299 if (up)
300 {
301 /* add metadata */
302 el = axiom_element_create(this->env, NULL, "metadata", NULL, &node2);
303 axiom_node_add_child(node, this->env, node2);
304 ns_meta = axiom_namespace_create(this->env, IFMAP_META_NS, "meta");
305 el = axiom_element_create(this->env, NULL, "access-request-ip", ns_meta,
306 &node3);
307 axiom_node_add_child(node2, this->env, node3);
308 attr = axiom_attribute_create(this->env, "ifmap-cardinality",
309 "singleValue", NULL);
310 axiom_element_add_attribute(el, this->env, attr, node3);
311 }
312
313 /**
314 * update or delete authenticated-by metadata
315 */
316 if (up)
317 {
318 el = axiom_element_create(this->env, NULL, "update", NULL, &node);
319 axiom_node_add_child(request, this->env, node);
320 }
321 else
322 {
323 el = axiom_element_create(this->env, NULL, "delete", NULL, &node);
324 axiom_node_add_child(request, this->env, node);
325
326 /* add filter */
327 attr = axiom_attribute_create(this->env, "filter",
328 "authenticated-by", NULL);
329 axiom_element_add_attribute(el, this->env, attr, node);
330 }
331
332 /* add access-request */
333 el = axiom_element_create(this->env, NULL, "access-request", NULL, &node2);
334 axiom_node_add_child(node, this->env, node2);
335
336 snprintf(buf, BUF_LEN, "%s:%d", this->ifmap_publisher_id, ike_sa_id);
337 attr = axiom_attribute_create(this->env, "name", buf, NULL);
338 axiom_element_add_attribute(el, this->env, attr, node2);
339
340 /* add device */
341 el = axiom_element_create(this->env, NULL, "device", NULL, &node2);
342 axiom_node_add_child(node, this->env, node2);
343 el = axiom_element_create(this->env, NULL, "name", NULL, &node3);
344 axiom_node_add_child(node2, this->env, node3);
345 text = axiom_text_create(this->env, node3, this->ifmap_publisher_id, &node4);
346
347 if (up)
348 {
349 /* add metadata */
350 el = axiom_element_create(this->env, NULL, "metadata", NULL, &node2);
351 axiom_node_add_child(node, this->env, node2);
352 ns_meta = axiom_namespace_create(this->env, IFMAP_META_NS, "meta");
353 el = axiom_element_create(this->env, NULL, "authenticated-by", ns_meta,
354 &node3);
355 axiom_node_add_child(node2, this->env, node3);
356 attr = axiom_attribute_create(this->env, "ifmap-cardinality",
357 "singleValue", NULL);
358 axiom_element_add_attribute(el, this->env, attr, node3);
359 }
360
361 /* send publish request */
362 result = axis2_svc_client_send_receive(this->svc_client, this->env, request);
363 if (!result)
364 {
365 return FALSE;
366 }
367
368 /* process publishReceived */
369 node = axiom_node_get_first_child(result, this->env);
370 if (node && axiom_node_get_node_type(node, this->env) == AXIOM_ELEMENT)
371 {
372 el = (axiom_element_t *)axiom_node_get_data_element(node, this->env);
373 qname = axiom_element_get_qname(el, this->env, node);
374 success = streq("publishReceived",
375 axutil_qname_to_string(qname, this->env));
376 if (!success)
377 {
378 DBG1(DBG_TNC, "%s", axiom_element_to_string(el, this->env, node));
379 }
380 }
381 axiom_node_free_tree(result, this->env);
382
383 return TRUE;
384 }
385
386 static bool endSession(private_tnc_ifmap_listener_t *this)
387 {
388 axiom_node_t *request, *result, *node;
389 axiom_element_t *el;
390 axiom_namespace_t *ns;
391 axiom_attribute_t *attr;
392 axutil_qname_t *qname;
393 bool success = FALSE;
394
395 /* build endSession request */
396 ns = axiom_namespace_create(this->env, IFMAP_NS, "ifmap");
397 el = axiom_element_create(this->env, NULL, "endSession", ns, &request);
398 attr = axiom_attribute_create(this->env, "session-id", this->session_id, NULL);
399 axiom_element_add_attribute(el, this->env, attr, request);
400
401 /* send endSession request */
402 result = axis2_svc_client_send_receive(this->svc_client, this->env, request);
403 if (!result)
404 {
405 return FALSE;
406 }
407
408 /* process endSessionResult */
409 node = axiom_node_get_first_child(result, this->env);
410 if (node && axiom_node_get_node_type(node, this->env) == AXIOM_ELEMENT)
411 {
412 el = (axiom_element_t *)axiom_node_get_data_element(node, this->env);
413 qname = axiom_element_get_qname(el, this->env, node);
414 success = streq("endSessionResult",
415 axutil_qname_to_string(qname, this->env));
416 if (!success)
417 {
418 DBG1(DBG_TNC, "%s", axiom_element_to_string(el, this->env, node));
419 }
420 }
421 axiom_node_free_tree(result, this->env);
422
423 return success;
424
425 return TRUE;
426 }
427
428 METHOD(listener_t, ike_updown, bool,
429 private_tnc_ifmap_listener_t *this, ike_sa_t *ike_sa, bool up)
430 {
431 u_int32_t ike_sa_id;
432 identification_t *id;
433 host_t *host;
434
435 ike_sa_id = ike_sa->get_unique_id(ike_sa);
436 id = ike_sa->get_other_id(ike_sa);
437 host = ike_sa->get_other_host(ike_sa);
438
439 DBG2(DBG_TNC, "sending publish");
440 if (!publish(this, ike_sa_id, id, host, up))
441 {
442 DBG1(DBG_TNC, "publish with MAP server failed");
443 }
444
445 return TRUE;
446 }
447
448 METHOD(tnc_ifmap_listener_t, destroy, void,
449 private_tnc_ifmap_listener_t *this)
450 {
451 if (this->session_id)
452 {
453 DBG2(DBG_TNC, "sending endSession");
454 if (!endSession(this))
455 {
456 DBG1(DBG_TNC, "endSession with MAP server failed");
457 }
458 free(this->session_id);
459 free(this->ifmap_publisher_id);
460 }
461 if (this->svc_client)
462 {
463 axis2_svc_client_free(this->svc_client, this->env);
464 }
465 if (this->env)
466 {
467 axutil_env_free(this->env);
468 }
469 free(this);
470 }
471
472 /**
473 * See header
474 */
475 tnc_ifmap_listener_t *tnc_ifmap_listener_create()
476 {
477 private_tnc_ifmap_listener_t *this;
478 axis2_char_t *server, *client_home, *username, *password, *auth_type;
479 axis2_endpoint_ref_t* endpoint_ref = NULL;
480 axis2_options_t *options = NULL;
481
482 client_home = lib->settings->get_str(lib->settings,
483 "charon.plugins.tnc-ifmap.client_home",
484 AXIS2_GETENV("AXIS2C_HOME"));
485 server = lib->settings->get_str(lib->settings,
486 "charon.plugins.tnc-ifmap.server", IFMAP_SERVER);
487 auth_type = lib->settings->get_str(lib->settings,
488 "charon.plugins.tnc-ifmap.auth_type", "Basic");
489 username = lib->settings->get_str(lib->settings,
490 "charon.plugins.tnc-ifmap.username", NULL);
491 password = lib->settings->get_str(lib->settings,
492 "charon.plugins.tnc-ifmap.password", NULL);
493
494 if (!username || !password)
495 {
496 DBG1(DBG_TNC, "MAP client %s%s%s not defined",
497 (!username) ? "username" : "",
498 (!username && ! password) ? " and " : "",
499 (!password) ? "password" : "");
500 }
501
502 INIT(this,
503 .public = {
504 .listener = {
505 .ike_updown = _ike_updown,
506 },
507 .destroy = _destroy,
508 },
509 );
510
511 /* Create Axis2/C environment and options */
512 this->env = axutil_env_create_all(IFMAP_LOGFILE, AXIS2_LOG_LEVEL_TRACE);
513 options = axis2_options_create(this->env);
514
515 /* Define the IF-MAP server as the to endpoint reference */
516 endpoint_ref = axis2_endpoint_ref_create(this->env, server);
517 axis2_options_set_to(options, this->env, endpoint_ref);
518
519 /* Create the axis2 service client */
520 this->svc_client = axis2_svc_client_create(this->env, client_home);
521 if (!this->svc_client)
522 {
523 DBG1(DBG_TNC, "Error creating axis2 service client");
524 AXIS2_LOG_ERROR(this->env->log, AXIS2_LOG_SI,
525 "Stub invoke FAILED: Error code: %d :: %s",
526 this->env->error->error_number,
527 AXIS2_ERROR_GET_MESSAGE(this->env->error));
528 destroy(this);
529 return NULL;
530 }
531
532 axis2_svc_client_set_options(this->svc_client, this->env, options);
533 axis2_options_set_http_auth_info(options, this->env, username, password,
534 auth_type);
535 DBG1(DBG_TNC, "connecting as MAP client '%s' to MAP server at '%s'",
536 username, server);
537
538 DBG2(DBG_TNC, "sending newSession");
539 if (!newSession(this))
540 {
541 DBG1(DBG_TNC, "newSession with MAP server failed");
542 destroy(this);
543 return NULL;
544 }
545 DBG2(DBG_TNC, "sending purgePublisher");
546 if (!purgePublisher(this))
547 {
548 DBG1(DBG_TNC, "purgePublisher with MAP server failed");
549 destroy(this);
550 return NULL;
551 }
552
553 return &this->public;
554 }
555