95d65915cc81f529b3d8071aa8aa05e142343fc9
[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;
177 axiom_element_t *el;
178 axiom_namespace_t *ns, *ns_meta;
179 axiom_attribute_t *attr;
180 char buf[BUF_LEN], *id_type;
181
182 /* build publish request */
183 ns = axiom_namespace_create(this->env, IFMAP_NS, "ifmap");
184 el = axiom_element_create(this->env, NULL, "publish", ns, &request);
185 attr = axiom_attribute_create(this->env, "session-id", this->session_id,
186 NULL);
187 axiom_element_add_attribute(el, this->env, attr, request);
188
189 /* update or delete IKE_SA information */
190 if (up)
191 {
192 el = axiom_element_create(this->env, NULL, "update", NULL, &node);
193 axiom_node_add_child(request, this->env, node);
194 }
195 else
196 {
197 el = axiom_element_create(this->env, NULL, "delete", NULL, &node);
198 axiom_node_add_child(request, this->env, node);
199
200 /* add filter */
201 attr = axiom_attribute_create(this->env, "filter",
202 "authenticated-as", NULL);
203 axiom_element_add_attribute(el, this->env, attr, node);
204 }
205
206 /* add access-request */
207 el = axiom_element_create(this->env, NULL, "access-request", NULL, &node2);
208 axiom_node_add_child(node, this->env, node2);
209
210 snprintf(buf, BUF_LEN, "%s:%d", this->ifmap_publisher_id, ike_sa_id);
211 attr = axiom_attribute_create(this->env, "name", buf, NULL);
212 axiom_element_add_attribute(el, this->env, attr, node2);
213
214 /* add identity */
215 el = axiom_element_create(this->env, NULL, "identity", NULL, &node2);
216 axiom_node_add_child(node, this->env, node2);
217
218 snprintf(buf, BUF_LEN, "%Y", id);
219 attr = axiom_attribute_create(this->env, "name", buf, NULL);
220 axiom_element_add_attribute(el, this->env, attr, node2);
221
222 switch (id->get_type(id))
223 {
224 case ID_FQDN:
225 id_type = "dns-name";
226 break;
227 case ID_RFC822_ADDR:
228 id_type = "email-address";
229 break;
230 case ID_DER_ASN1_DN:
231 id_type = "distinguished-name";
232 break;
233 default:
234 id_type = "other";
235 }
236 attr = axiom_attribute_create(this->env, "type", id_type, NULL);
237 axiom_element_add_attribute(el, this->env, attr, node2);
238
239 if (up)
240 {
241 /* add metadata */
242 el = axiom_element_create(this->env, NULL, "metadata", NULL, &node2);
243 axiom_node_add_child(node, this->env, node2);
244
245 ns_meta = axiom_namespace_create(this->env, IFMAP_META_NS, "meta");
246
247 el = axiom_element_create(this->env, NULL, "authenticated-as", ns_meta,
248 &node3);
249 axiom_node_add_child(node2, this->env, node3);
250 attr = axiom_attribute_create(this->env, "ifmap-cardinality",
251 "singleValue", NULL);
252 axiom_element_add_attribute(el, this->env, attr, node3);
253 }
254
255 /* update or delete IKE_SA information */
256 if (up)
257 {
258 el = axiom_element_create(this->env, NULL, "update", NULL, &node);
259 axiom_node_add_child(request, this->env, node);
260 }
261 else
262 {
263 el = axiom_element_create(this->env, NULL, "delete", NULL, &node);
264 axiom_node_add_child(request, this->env, node);
265
266 /* add filter */
267 attr = axiom_attribute_create(this->env, "filter",
268 "acces-request-ip", NULL);
269 axiom_element_add_attribute(el, this->env, attr, node);
270 }
271
272 /* add ip-address */
273 el = axiom_element_create(this->env, NULL, "ip-address", NULL, &node2);
274 axiom_node_add_child(node, this->env, node2);
275
276 snprintf(buf, BUF_LEN, "%H", host);
277 attr = axiom_attribute_create(this->env, "value", buf, NULL);
278 axiom_element_add_attribute(el, this->env, attr, node2);
279
280 attr = axiom_attribute_create(this->env, "type",
281 host->get_family(host) == AF_INET ? "IPv4" : "IPv6", NULL);
282 axiom_element_add_attribute(el, this->env, attr, node2);
283
284 /* add access-request */
285 el = axiom_element_create(this->env, NULL, "access-request", NULL, &node2);
286 axiom_node_add_child(node, this->env, node2);
287
288 snprintf(buf, BUF_LEN, "%s:%d", this->ifmap_publisher_id, ike_sa_id);
289 attr = axiom_attribute_create(this->env, "name", buf, NULL);
290 axiom_element_add_attribute(el, this->env, attr, node2);
291
292 if (up)
293 {
294 /* add metadata */
295 el = axiom_element_create(this->env, NULL, "metadata", NULL, &node2);
296 axiom_node_add_child(node, this->env, node2);
297 ns_meta = axiom_namespace_create(this->env, IFMAP_META_NS, "meta");
298 el = axiom_element_create(this->env, NULL, "access-request-ip", ns_meta,
299 &node3);
300 axiom_node_add_child(node2, this->env, node3);
301 attr = axiom_attribute_create(this->env, "ifmap-cardinality",
302 "singleValue", NULL);
303 axiom_element_add_attribute(el, this->env, attr, node3);
304 }
305
306 /* send publish request */
307 result = axis2_svc_client_send_receive(this->svc_client, this->env, request);
308 if (!result)
309 {
310 return FALSE;
311 }
312
313 /* process publishReceived */
314 node = axiom_node_get_first_child(result, this->env);
315 axiom_node_free_tree(result, this->env);
316
317 return TRUE;
318 }
319
320 static bool endSession(private_tnc_ifmap_listener_t *this)
321 {
322 axiom_node_t *request, *result, *node;
323 axiom_element_t *el;
324 axiom_namespace_t *ns;
325 axiom_attribute_t *attr;
326 axutil_qname_t *qname;
327 bool success = FALSE;
328
329 /* build endSession request */
330 ns = axiom_namespace_create(this->env, IFMAP_NS, "ifmap");
331 el = axiom_element_create(this->env, NULL, "endSession", ns, &request);
332 attr = axiom_attribute_create(this->env, "session-id", this->session_id, NULL);
333 axiom_element_add_attribute(el, this->env, attr, request);
334
335 /* send endSession request */
336 result = axis2_svc_client_send_receive(this->svc_client, this->env, request);
337 if (!result)
338 {
339 return FALSE;
340 }
341
342 /* process endSessionResult */
343 node = axiom_node_get_first_child(result, this->env);
344 if (node && axiom_node_get_node_type(node, this->env) == AXIOM_ELEMENT)
345 {
346 el = (axiom_element_t *)axiom_node_get_data_element(node, this->env);
347 qname = axiom_element_get_qname(el, this->env, node);
348 success = streq("endSessionResult",
349 axutil_qname_to_string(qname, this->env));
350 if (!success)
351 {
352 DBG1(DBG_TNC, "%s", axiom_element_to_string(el, this->env, node));
353 }
354 }
355 axiom_node_free_tree(result, this->env);
356
357 return success;
358
359 return TRUE;
360 }
361
362 METHOD(listener_t, ike_updown, bool,
363 private_tnc_ifmap_listener_t *this, ike_sa_t *ike_sa, bool up)
364 {
365 u_int32_t ike_sa_id;
366 identification_t *id;
367 host_t *host;
368
369 ike_sa_id = ike_sa->get_unique_id(ike_sa);
370 id = ike_sa->get_other_id(ike_sa);
371 host = ike_sa->get_other_host(ike_sa);
372
373 DBG2(DBG_TNC, "sending publish");
374 if (!publish(this, ike_sa_id, id, host, up))
375 {
376 DBG1(DBG_TNC, "publish with MAP server failed");
377 }
378
379 return TRUE;
380 }
381
382 METHOD(tnc_ifmap_listener_t, destroy, void,
383 private_tnc_ifmap_listener_t *this)
384 {
385 if (this->session_id)
386 {
387 DBG2(DBG_TNC, "sending endSession");
388 if (!endSession(this))
389 {
390 DBG1(DBG_TNC, "endSession with MAP server failed");
391 }
392 free(this->session_id);
393 free(this->ifmap_publisher_id);
394 }
395 if (this->svc_client)
396 {
397 axis2_svc_client_free(this->svc_client, this->env);
398 }
399 if (this->env)
400 {
401 axutil_env_free(this->env);
402 }
403 free(this);
404 }
405
406 /**
407 * See header
408 */
409 tnc_ifmap_listener_t *tnc_ifmap_listener_create()
410 {
411 private_tnc_ifmap_listener_t *this;
412 axis2_char_t *server, *client_home, *username, *password, *auth_type;
413 axis2_endpoint_ref_t* endpoint_ref = NULL;
414 axis2_options_t *options = NULL;
415
416 client_home = lib->settings->get_str(lib->settings,
417 "charon.plugins.tnc-ifmap.client_home",
418 AXIS2_GETENV("AXIS2C_HOME"));
419 server = lib->settings->get_str(lib->settings,
420 "charon.plugins.tnc-ifmap.server", IFMAP_SERVER);
421 auth_type = lib->settings->get_str(lib->settings,
422 "charon.plugins.tnc-ifmap.auth_type", "Basic");
423 username = lib->settings->get_str(lib->settings,
424 "charon.plugins.tnc-ifmap.username", NULL);
425 password = lib->settings->get_str(lib->settings,
426 "charon.plugins.tnc-ifmap.password", NULL);
427
428 if (!username || !password)
429 {
430 DBG1(DBG_TNC, "MAP client %s%s%s not defined",
431 (!username) ? "username" : "",
432 (!username && ! password) ? " and " : "",
433 (!password) ? "password" : "");
434 }
435
436 INIT(this,
437 .public = {
438 .listener = {
439 .ike_updown = _ike_updown,
440 },
441 .destroy = _destroy,
442 },
443 );
444
445 /* Create Axis2/C environment and options */
446 this->env = axutil_env_create_all(IFMAP_LOGFILE, AXIS2_LOG_LEVEL_TRACE);
447 options = axis2_options_create(this->env);
448
449 /* Define the IF-MAP server as the to endpoint reference */
450 endpoint_ref = axis2_endpoint_ref_create(this->env, server);
451 axis2_options_set_to(options, this->env, endpoint_ref);
452
453 /* Create the axis2 service client */
454 this->svc_client = axis2_svc_client_create(this->env, client_home);
455 if (!this->svc_client)
456 {
457 DBG1(DBG_TNC, "Error creating axis2 service client");
458 AXIS2_LOG_ERROR(this->env->log, AXIS2_LOG_SI,
459 "Stub invoke FAILED: Error code: %d :: %s",
460 this->env->error->error_number,
461 AXIS2_ERROR_GET_MESSAGE(this->env->error));
462 destroy(this);
463 return NULL;
464 }
465
466 axis2_svc_client_set_options(this->svc_client, this->env, options);
467 axis2_options_set_http_auth_info(options, this->env, username, password,
468 auth_type);
469 DBG1(DBG_TNC, "connecting as MAP client '%s' to MAP server at '%s'",
470 username, server);
471
472 DBG2(DBG_TNC, "sending newSession");
473 if (!newSession(this))
474 {
475 DBG1(DBG_TNC, "newSession with MAP server failed");
476 destroy(this);
477 return NULL;
478 }
479 DBG2(DBG_TNC, "sending purgePublisher");
480 if (!purgePublisher(this))
481 {
482 DBG1(DBG_TNC, "purgePublisher with MAP server failed");
483 destroy(this);
484 return NULL;
485 }
486
487 return &this->public;
488 }
489