swid-gen: Share SWID generator between sw-collector, imc-swima and imc-swid
[strongswan.git] / src / libimcv / plugins / imv_swid / imv_swid_agent.c
1 /*
2 * Copyright (C) 2013-2017 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 #define _GNU_SOURCE
17 #include <stdio.h>
18
19 #include "imv_swid_agent.h"
20 #include "imv_swid_state.h"
21
22 #include <imcv.h>
23 #include <imv/imv_agent.h>
24 #include <imv/imv_msg.h>
25 #include <ietf/ietf_attr_pa_tnc_error.h>
26 #include "rest/rest.h"
27 #include "tcg/seg/tcg_seg_attr_max_size.h"
28 #include "tcg/seg/tcg_seg_attr_seg_env.h"
29 #include "tcg/swid/tcg_swid_attr_req.h"
30 #include "tcg/swid/tcg_swid_attr_tag_inv.h"
31 #include "tcg/swid/tcg_swid_attr_tag_id_inv.h"
32 #include "swid/swid_error.h"
33 #include "swid/swid_inventory.h"
34
35 #include <tncif_names.h>
36 #include <tncif_pa_subtypes.h>
37
38 #include <pen/pen.h>
39 #include <utils/debug.h>
40 #include <bio/bio_reader.h>
41
42 typedef struct private_imv_swid_agent_t private_imv_swid_agent_t;
43
44 /* Subscribed PA-TNC message subtypes */
45 static pen_type_t msg_types[] = {
46 { PEN_TCG, PA_SUBTYPE_TCG_SWID }
47 };
48
49 /**
50 * Flag set when corresponding attribute has been received
51 */
52 enum imv_swid_attr_t {
53 IMV_SWID_ATTR_TAG_INV = (1<<0),
54 IMV_SWID_ATTR_TAG_ID_INV = (1<<1)
55 };
56
57 /**
58 * Private data of an imv_swid_agent_t object.
59 */
60 struct private_imv_swid_agent_t {
61
62 /**
63 * Public members of imv_swid_agent_t
64 */
65 imv_agent_if_t public;
66
67 /**
68 * IMV agent responsible for generic functions
69 */
70 imv_agent_t *agent;
71
72 /**
73 * REST API to strongTNC manager
74 */
75 rest_t *rest_api;
76
77 };
78
79 METHOD(imv_agent_if_t, bind_functions, TNC_Result,
80 private_imv_swid_agent_t *this, TNC_TNCS_BindFunctionPointer bind_function)
81 {
82 return this->agent->bind_functions(this->agent, bind_function);
83 }
84
85 METHOD(imv_agent_if_t, notify_connection_change, TNC_Result,
86 private_imv_swid_agent_t *this, TNC_ConnectionID id,
87 TNC_ConnectionState new_state)
88 {
89 imv_state_t *state;
90
91 switch (new_state)
92 {
93 case TNC_CONNECTION_STATE_CREATE:
94 state = imv_swid_state_create(id);
95 return this->agent->create_state(this->agent, state);
96 case TNC_CONNECTION_STATE_DELETE:
97 return this->agent->delete_state(this->agent, id);
98 default:
99 return this->agent->change_state(this->agent, id, new_state, NULL);
100 }
101 }
102
103 /**
104 * Process a received message
105 */
106 static TNC_Result receive_msg(private_imv_swid_agent_t *this,
107 imv_state_t *state, imv_msg_t *in_msg)
108 {
109 imv_swid_state_t *swid_state;
110 imv_msg_t *out_msg;
111 enumerator_t *enumerator;
112 pa_tnc_attr_t *attr;
113 TNC_Result result;
114 bool fatal_error = FALSE;
115
116 /* generate an outgoing PA-TNC message - we might need it */
117 out_msg = imv_msg_create_as_reply(in_msg);
118
119 /* parse received PA-TNC message and handle local and remote errors */
120 result = in_msg->receive(in_msg, out_msg, &fatal_error);
121 if (result != TNC_RESULT_SUCCESS)
122 {
123 out_msg->destroy(out_msg);
124 return result;
125 }
126
127 swid_state = (imv_swid_state_t*)state;
128
129 /* analyze PA-TNC attributes */
130 enumerator = in_msg->create_attribute_enumerator(in_msg);
131 while (enumerator->enumerate(enumerator, &attr))
132 {
133 uint32_t request_id = 0, last_eid, eid_epoch;
134 swid_inventory_t *inventory;
135 pen_type_t type;
136
137 type = attr->get_type(attr);
138
139 if (type.vendor_id == PEN_IETF && type.type == IETF_ATTR_PA_TNC_ERROR)
140 {
141 ietf_attr_pa_tnc_error_t *error_attr;
142 pen_type_t error_code;
143 chunk_t msg_info, description;
144 bio_reader_t *reader;
145 uint32_t max_attr_size;
146 bool success;
147
148 error_attr = (ietf_attr_pa_tnc_error_t*)attr;
149 error_code = error_attr->get_error_code(error_attr);
150
151 if (error_code.vendor_id == PEN_TCG)
152 {
153 fatal_error = TRUE;
154 msg_info = error_attr->get_msg_info(error_attr);
155 reader = bio_reader_create(msg_info);
156 success = reader->read_uint32(reader, &request_id);
157
158 DBG1(DBG_IMV, "received TCG error '%N' for request %d",
159 swid_error_code_names, error_code.type, request_id);
160 if (!success)
161 {
162 reader->destroy(reader);
163 continue;
164 }
165 if (error_code.type == TCG_SWID_RESPONSE_TOO_LARGE)
166 {
167 if (!reader->read_uint32(reader, &max_attr_size))
168 {
169 reader->destroy(reader);
170 continue;
171 }
172 DBG1(DBG_IMV, " maximum PA-TNC attribute size is %u bytes",
173 max_attr_size);
174 }
175 description = reader->peek(reader);
176 if (description.len)
177 {
178 DBG1(DBG_IMV, " description: %.*s", description.len,
179 description.ptr);
180 }
181 reader->destroy(reader);
182 }
183 }
184 else if (type.vendor_id != PEN_TCG)
185 {
186 continue;
187 }
188
189 switch (type.type)
190 {
191 case TCG_SWID_TAG_ID_INVENTORY:
192 {
193 tcg_swid_attr_tag_id_inv_t *attr_cast;
194 uint32_t missing;
195 int tag_id_count;
196
197 state->set_action_flags(state, IMV_SWID_ATTR_TAG_ID_INV);
198
199 attr_cast = (tcg_swid_attr_tag_id_inv_t*)attr;
200 request_id = attr_cast->get_request_id(attr_cast);
201 last_eid = attr_cast->get_last_eid(attr_cast, &eid_epoch);
202 inventory = attr_cast->get_inventory(attr_cast);
203 tag_id_count = inventory->get_count(inventory);
204 missing = attr_cast->get_tag_id_count(attr_cast);
205 swid_state->set_missing(swid_state, missing);
206
207 DBG2(DBG_IMV, "received SWID tag ID inventory with %d item%s "
208 "for request %d at eid %d of epoch 0x%08x, %d item%s to "
209 "follow", tag_id_count, (tag_id_count == 1) ? "" : "s",
210 request_id, last_eid, eid_epoch, missing,
211 (missing == 1) ? "" : "s");
212
213 if (request_id == swid_state->get_request_id(swid_state))
214 {
215 swid_state->set_swid_inventory(swid_state, inventory);
216 swid_state->set_count(swid_state, tag_id_count, 0,
217 in_msg->get_src_id(in_msg));
218 }
219 else
220 {
221 DBG1(DBG_IMV, "no workitem found for SWID tag ID inventory "
222 "with request ID %d", request_id);
223 }
224 attr_cast->clear_inventory(attr_cast);
225 break;
226 }
227 case TCG_SWID_TAG_INVENTORY:
228 {
229 tcg_swid_attr_tag_inv_t *attr_cast;
230 swid_tag_t *tag;
231 chunk_t tag_encoding;
232 json_object *jobj, *jarray, *jstring;
233 char *tag_str;
234 uint32_t missing;
235 int tag_count;
236 enumerator_t *e;
237
238 state->set_action_flags(state, IMV_SWID_ATTR_TAG_INV);
239
240 attr_cast = (tcg_swid_attr_tag_inv_t*)attr;
241 request_id = attr_cast->get_request_id(attr_cast);
242 last_eid = attr_cast->get_last_eid(attr_cast, &eid_epoch);
243 inventory = attr_cast->get_inventory(attr_cast);
244 tag_count = inventory->get_count(inventory);
245 missing = attr_cast->get_tag_count(attr_cast);
246 swid_state->set_missing(swid_state, missing);
247
248 DBG2(DBG_IMV, "received SWID tag inventory with %d item%s for "
249 "request %d at eid %d of epoch 0x%08x, %d item%s to follow",
250 tag_count, (tag_count == 1) ? "" : "s", request_id,
251 last_eid, eid_epoch, missing, (missing == 1) ? "" : "s");
252
253 if (request_id == swid_state->get_request_id(swid_state))
254 {
255 swid_state->set_count(swid_state, 0, tag_count,
256 in_msg->get_src_id(in_msg));
257
258 if (this->rest_api)
259 {
260 jobj = json_object_new_object();
261 jarray = json_object_new_array();
262 json_object_object_add(jobj, "data", jarray);
263
264 e = inventory->create_enumerator(inventory);
265 while (e->enumerate(e, &tag))
266 {
267 tag_encoding = tag->get_encoding(tag);
268 tag_str = strndup(tag_encoding.ptr, tag_encoding.len);
269 DBG3(DBG_IMV, "%s", tag_str);
270 jstring = json_object_new_string(tag_str);
271 json_object_array_add(jarray, jstring);
272 free(tag_str);
273 }
274 e->destroy(e);
275
276 if (this->rest_api->post(this->rest_api,
277 "swid/add-tags/", jobj, NULL) != SUCCESS)
278 {
279 DBG1(DBG_IMV, "error in REST API add-tags request");
280 }
281 json_object_put(jobj);
282 }
283 }
284 else
285 {
286 DBG1(DBG_IMV, "no workitem found for SWID tag inventory "
287 "with request ID %d", request_id);
288 }
289 attr_cast->clear_inventory(attr_cast);
290 break;
291 }
292 default:
293 break;
294 }
295 }
296 enumerator->destroy(enumerator);
297
298 if (fatal_error)
299 {
300 state->set_recommendation(state,
301 TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION,
302 TNC_IMV_EVALUATION_RESULT_ERROR);
303 result = out_msg->send_assessment(out_msg);
304 if (result == TNC_RESULT_SUCCESS)
305 {
306 result = this->agent->provide_recommendation(this->agent, state);
307 }
308 }
309 else
310 {
311 /* send PA-TNC message with the EXCL flag set */
312 result = out_msg->send(out_msg, TRUE);
313 }
314 out_msg->destroy(out_msg);
315
316 return result;
317 }
318
319 METHOD(imv_agent_if_t, receive_message, TNC_Result,
320 private_imv_swid_agent_t *this, TNC_ConnectionID id,
321 TNC_MessageType msg_type, chunk_t msg)
322 {
323 imv_state_t *state;
324 imv_msg_t *in_msg;
325 TNC_Result result;
326
327 if (!this->agent->get_state(this->agent, id, &state))
328 {
329 return TNC_RESULT_FATAL;
330 }
331 in_msg = imv_msg_create_from_data(this->agent, state, id, msg_type, msg);
332 result = receive_msg(this, state, in_msg);
333 in_msg->destroy(in_msg);
334
335 return result;
336 }
337
338 METHOD(imv_agent_if_t, receive_message_long, TNC_Result,
339 private_imv_swid_agent_t *this, TNC_ConnectionID id,
340 TNC_UInt32 src_imc_id, TNC_UInt32 dst_imv_id,
341 TNC_VendorID msg_vid, TNC_MessageSubtype msg_subtype, chunk_t msg)
342 {
343 imv_state_t *state;
344 imv_msg_t *in_msg;
345 TNC_Result result;
346
347 if (!this->agent->get_state(this->agent, id, &state))
348 {
349 return TNC_RESULT_FATAL;
350 }
351 in_msg = imv_msg_create_from_long_data(this->agent, state, id,
352 src_imc_id, dst_imv_id, msg_vid, msg_subtype, msg);
353 result = receive_msg(this, state, in_msg);
354 in_msg->destroy(in_msg);
355
356 return result;
357
358 }
359
360 METHOD(imv_agent_if_t, batch_ending, TNC_Result,
361 private_imv_swid_agent_t *this, TNC_ConnectionID id)
362 {
363 imv_msg_t *out_msg;
364 imv_state_t *state;
365 imv_session_t *session;
366 imv_workitem_t *workitem;
367 imv_swid_state_t *swid_state;
368 imv_swid_handshake_state_t handshake_state;
369 pa_tnc_attr_t *attr;
370 TNC_IMVID imv_id;
371 TNC_Result result = TNC_RESULT_SUCCESS;
372 bool no_workitems = TRUE;
373 uint32_t request_id, received;
374 uint8_t flags;
375 enumerator_t *enumerator;
376
377 if (!this->agent->get_state(this->agent, id, &state))
378 {
379 return TNC_RESULT_FATAL;
380 }
381 swid_state = (imv_swid_state_t*)state;
382 handshake_state = swid_state->get_handshake_state(swid_state);
383 session = state->get_session(state);
384 imv_id = this->agent->get_id(this->agent);
385
386 if (handshake_state == IMV_SWID_STATE_END)
387 {
388 return TNC_RESULT_SUCCESS;
389 }
390
391 /* Create an empty out message - we might need it */
392 out_msg = imv_msg_create(this->agent, state, id, imv_id,
393 swid_state->get_imc_id(swid_state),
394 msg_types[0]);
395
396 if (!imcv_db)
397 {
398 DBG2(DBG_IMV, "no workitems available - no evaluation possible");
399 state->set_recommendation(state,
400 TNC_IMV_ACTION_RECOMMENDATION_ALLOW,
401 TNC_IMV_EVALUATION_RESULT_DONT_KNOW);
402 result = out_msg->send_assessment(out_msg);
403 out_msg->destroy(out_msg);
404 swid_state->set_handshake_state(swid_state, IMV_SWID_STATE_END);
405
406 if (result != TNC_RESULT_SUCCESS)
407 {
408 return result;
409 }
410 return this->agent->provide_recommendation(this->agent, state);
411 }
412
413 /* Look for SWID tag workitem and create SWID tag request */
414 if (handshake_state == IMV_SWID_STATE_INIT &&
415 session->get_policy_started(session))
416 {
417 size_t max_attr_size = SWID_MAX_ATTR_SIZE;
418 size_t max_seg_size;
419 seg_contract_t *contract;
420 seg_contract_manager_t *contracts;
421 char buf[BUF_LEN];
422
423 enumerator = session->create_workitem_enumerator(session);
424 if (enumerator)
425 {
426 while (enumerator->enumerate(enumerator, &workitem))
427 {
428 if (workitem->get_imv_id(workitem) != TNC_IMVID_ANY ||
429 workitem->get_type(workitem) != IMV_WORKITEM_SWID_TAGS)
430 {
431 continue;
432 }
433
434 flags = TCG_SWID_ATTR_REQ_FLAG_NONE;
435 if (strchr(workitem->get_arg_str(workitem), 'R'))
436 {
437 flags |= TCG_SWID_ATTR_REQ_FLAG_R;
438 }
439 if (strchr(workitem->get_arg_str(workitem), 'S'))
440 {
441 flags |= TCG_SWID_ATTR_REQ_FLAG_S;
442 }
443 if (strchr(workitem->get_arg_str(workitem), 'C'))
444 {
445 flags |= TCG_SWID_ATTR_REQ_FLAG_C;
446 }
447
448 /* Determine maximum PA-TNC attribute segment size */
449 max_seg_size = state->get_max_msg_len(state)
450 - PA_TNC_HEADER_SIZE
451 - PA_TNC_ATTR_HEADER_SIZE
452 - TCG_SEG_ATTR_SEG_ENV_HEADER;
453
454 /* Announce support of PA-TNC segmentation to IMC */
455 contract = seg_contract_create(msg_types[0], max_attr_size,
456 max_seg_size, TRUE, imv_id, FALSE);
457 contract->get_info_string(contract, buf, BUF_LEN, TRUE);
458 DBG2(DBG_IMV, "%s", buf);
459 contracts = state->get_contracts(state);
460 contracts->add_contract(contracts, contract);
461 attr = tcg_seg_attr_max_size_create(max_attr_size,
462 max_seg_size, TRUE);
463 out_msg->add_attribute(out_msg, attr);
464
465 /* Issue a SWID request */
466 request_id = workitem->get_id(workitem);
467 swid_state->set_request_id(swid_state, request_id);
468 attr = tcg_swid_attr_req_create(flags, request_id, 0);
469 out_msg->add_attribute(out_msg, attr);
470 workitem->set_imv_id(workitem, imv_id);
471 no_workitems = FALSE;
472 DBG2(DBG_IMV, "IMV %d issues SWID request %d",
473 imv_id, request_id);
474 break;
475 }
476 enumerator->destroy(enumerator);
477
478 if (no_workitems)
479 {
480 DBG2(DBG_IMV, "IMV %d has no workitems - "
481 "no evaluation requested", imv_id);
482 state->set_recommendation(state,
483 TNC_IMV_ACTION_RECOMMENDATION_ALLOW,
484 TNC_IMV_EVALUATION_RESULT_DONT_KNOW);
485 }
486 handshake_state = IMV_SWID_STATE_WORKITEMS;
487 swid_state->set_handshake_state(swid_state, handshake_state);
488 }
489 }
490
491 received = state->get_action_flags(state);
492
493 if (handshake_state == IMV_SWID_STATE_WORKITEMS &&
494 (received & (IMV_SWID_ATTR_TAG_INV|IMV_SWID_ATTR_TAG_ID_INV)) &&
495 swid_state->get_missing(swid_state) == 0)
496 {
497 TNC_IMV_Evaluation_Result eval;
498 TNC_IMV_Action_Recommendation rec;
499 char result_str[BUF_LEN], *error_str = "", *command;
500 char *target, *separator;
501 int tag_id_count, tag_count, i;
502 chunk_t tag_creator, unique_sw_id;
503 json_object *jrequest, *jresponse, *jvalue;
504 tcg_swid_attr_req_t *cast_attr;
505 swid_tag_id_t *tag_id;
506 status_t status = SUCCESS;
507
508 if (this->rest_api && (received & IMV_SWID_ATTR_TAG_ID_INV))
509 {
510 if (asprintf(&command, "sessions/%d/swid-measurement/",
511 session->get_session_id(session, NULL, NULL)) < 0)
512 {
513 error_str = "allocation of command string failed";
514 status = FAILED;
515 }
516 else
517 {
518 jrequest = swid_state->get_swid_inventory(swid_state);
519 status = this->rest_api->post(this->rest_api, command,
520 jrequest, &jresponse);
521 if (status == FAILED)
522 {
523 error_str = "error in REST API swid-measurement request";
524 }
525 free(command);
526 }
527 }
528
529 switch (status)
530 {
531 case SUCCESS:
532 enumerator = session->create_workitem_enumerator(session);
533 while (enumerator->enumerate(enumerator, &workitem))
534 {
535 if (workitem->get_type(workitem) == IMV_WORKITEM_SWID_TAGS)
536 {
537 swid_state->get_count(swid_state, &tag_id_count,
538 &tag_count);
539 snprintf(result_str, BUF_LEN, "received inventory of "
540 "%d SWID tag ID%s and %d SWID tag%s",
541 tag_id_count, (tag_id_count == 1) ? "" : "s",
542 tag_count, (tag_count == 1) ? "" : "s");
543 session->remove_workitem(session, enumerator);
544
545 eval = TNC_IMV_EVALUATION_RESULT_COMPLIANT;
546 rec = workitem->set_result(workitem, result_str, eval);
547 state->update_recommendation(state, rec, eval);
548 imcv_db->finalize_workitem(imcv_db, workitem);
549 workitem->destroy(workitem);
550 break;
551 }
552 }
553 enumerator->destroy(enumerator);
554 break;
555 case NEED_MORE:
556 if (received & IMV_SWID_ATTR_TAG_INV)
557 {
558 error_str = "not all requested SWID tags were received";
559 status = FAILED;
560 json_object_put(jresponse);
561 break;
562 }
563 if (json_object_get_type(jresponse) != json_type_array)
564 {
565 error_str = "response was not a json_array";
566 status = FAILED;
567 json_object_put(jresponse);
568 break;
569 }
570
571 /* Create a TCG SWID Request attribute */
572 attr = tcg_swid_attr_req_create(TCG_SWID_ATTR_REQ_FLAG_NONE,
573 swid_state->get_request_id(swid_state), 0);
574 tag_id_count = json_object_array_length(jresponse);
575 DBG1(DBG_IMV, "%d SWID tag target%s", tag_id_count,
576 (tag_id_count == 1) ? "" : "s");
577 swid_state->set_missing(swid_state, tag_id_count);
578
579 for (i = 0; i < tag_id_count; i++)
580 {
581 jvalue = json_object_array_get_idx(jresponse, i);
582 if (json_object_get_type(jvalue) != json_type_string)
583 {
584 error_str = "json_string element expected in json_array";
585 status = FAILED;
586 json_object_put(jresponse);
587 break;
588 }
589 target = (char*)json_object_get_string(jvalue);
590 DBG1(DBG_IMV, " %s", target);
591
592 /* Separate target into tag_creator and unique_sw_id */
593 separator = strstr(target, "__");
594 if (!separator)
595 {
596 error_str = "separation of regid from "
597 "unique software ID failed";
598 break;
599 }
600 tag_creator = chunk_create(target, separator - target);
601 separator += 2;
602 unique_sw_id = chunk_create(separator, strlen(target) -
603 tag_creator.len - 2);
604 tag_id = swid_tag_id_create(tag_creator, unique_sw_id,
605 chunk_empty);
606 cast_attr = (tcg_swid_attr_req_t*)attr;
607 cast_attr->add_target(cast_attr, tag_id);
608 }
609 json_object_put(jresponse);
610
611 out_msg->add_attribute(out_msg, attr);
612 break;
613 case FAILED:
614 default:
615 break;
616 }
617
618 if (status == FAILED)
619 {
620 enumerator = session->create_workitem_enumerator(session);
621 while (enumerator->enumerate(enumerator, &workitem))
622 {
623 if (workitem->get_type(workitem) == IMV_WORKITEM_SWID_TAGS)
624 {
625 session->remove_workitem(session, enumerator);
626 eval = TNC_IMV_EVALUATION_RESULT_ERROR;
627 rec = workitem->set_result(workitem, error_str, eval);
628 state->update_recommendation(state, rec, eval);
629 imcv_db->finalize_workitem(imcv_db, workitem);
630 workitem->destroy(workitem);
631 break;
632 }
633 }
634 enumerator->destroy(enumerator);
635 }
636 }
637
638 /* finalized all workitems ? */
639 if (handshake_state == IMV_SWID_STATE_WORKITEMS &&
640 session->get_workitem_count(session, imv_id) == 0)
641 {
642 result = out_msg->send_assessment(out_msg);
643 out_msg->destroy(out_msg);
644 swid_state->set_handshake_state(swid_state, IMV_SWID_STATE_END);
645
646 if (result != TNC_RESULT_SUCCESS)
647 {
648 return result;
649 }
650 return this->agent->provide_recommendation(this->agent, state);
651 }
652
653 /* send non-empty PA-TNC message with excl flag not set */
654 if (out_msg->get_attribute_count(out_msg))
655 {
656 result = out_msg->send(out_msg, FALSE);
657 }
658 out_msg->destroy(out_msg);
659
660 return result;
661 }
662
663 METHOD(imv_agent_if_t, solicit_recommendation, TNC_Result,
664 private_imv_swid_agent_t *this, TNC_ConnectionID id)
665 {
666 imv_state_t *state;
667
668 if (!this->agent->get_state(this->agent, id, &state))
669 {
670 return TNC_RESULT_FATAL;
671 }
672 return this->agent->provide_recommendation(this->agent, state);
673 }
674
675 METHOD(imv_agent_if_t, destroy, void,
676 private_imv_swid_agent_t *this)
677 {
678 DESTROY_IF(this->rest_api);
679 this->agent->destroy(this->agent);
680 free(this);
681 }
682
683 /**
684 * Described in header.
685 */
686 imv_agent_if_t *imv_swid_agent_create(const char *name, TNC_IMVID id,
687 TNC_Version *actual_version)
688 {
689 private_imv_swid_agent_t *this;
690 imv_agent_t *agent;
691 char *rest_api_uri;
692 u_int rest_api_timeout;
693
694 agent = imv_agent_create(name, msg_types, countof(msg_types), id,
695 actual_version);
696 if (!agent)
697 {
698 return NULL;
699 }
700 agent->add_non_fatal_attr_type(agent,
701 pen_type_create(PEN_TCG, TCG_SEG_MAX_ATTR_SIZE_REQ));
702
703 INIT(this,
704 .public = {
705 .bind_functions = _bind_functions,
706 .notify_connection_change = _notify_connection_change,
707 .receive_message = _receive_message,
708 .receive_message_long = _receive_message_long,
709 .batch_ending = _batch_ending,
710 .solicit_recommendation = _solicit_recommendation,
711 .destroy = _destroy,
712 },
713 .agent = agent,
714 );
715
716 rest_api_uri = lib->settings->get_str(lib->settings,
717 "%s.plugins.imv-swid.rest_api_uri", NULL, lib->ns);
718 rest_api_timeout = lib->settings->get_int(lib->settings,
719 "%s.plugins.imv-swid.rest_api_timeout", 120, lib->ns);
720 if (rest_api_uri)
721 {
722 this->rest_api = rest_create(rest_api_uri, rest_api_timeout);
723 }
724
725 return &this->public;
726 }
727