2 * EAP-TNC - TNCS (IF-IMV, IF-TNCCS, and IF-TNCCS-SOH)
3 * Copyright (c) 2007-2008, Jouni Malinen <j@w1.fi>
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
14 #include "common/tnc.h"
16 #include "eap_common/eap_tlv_common.h"
17 #include "eap_common/eap_defs.h"
20 /* TODO: TNCS must be thread-safe; review the code and add locking etc. if
23 #ifndef TNC_CONFIG_FILE
24 #define TNC_CONFIG_FILE "/etc/tnc_config"
25 #endif /* TNC_CONFIG_FILE */
26 #define IF_TNCCS_START \
27 "<?xml version=\"1.0\"?>\n" \
28 "<TNCCS-Batch BatchId=\"%d\" Recipient=\"TNCS\" " \
29 "xmlns=\"http://www.trustedcomputinggroup.org/IWG/TNC/1_0/IF_TNCCS#\" " \
30 "xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" " \
31 "xsi:schemaLocation=\"http://www.trustedcomputinggroup.org/IWG/TNC/1_0/" \
32 "IF_TNCCS# https://www.trustedcomputinggroup.org/XML/SCHEMA/TNCCS_1.0.xsd\">\n"
33 #define IF_TNCCS_END "\n</TNCCS-Batch>"
38 struct tnc_if_imv *next;
41 void *dlhandle; /* from dlopen() */
43 TNC_MessageTypeList supported_types;
44 size_t num_supported_types;
46 /* Functions implemented by IMVs (with TNC_IMV_ prefix) */
47 TNC_Result (*Initialize)(
49 TNC_Version minVersion,
50 TNC_Version maxVersion,
51 TNC_Version *pOutActualVersion);
52 TNC_Result (*NotifyConnectionChange)(
54 TNC_ConnectionID connectionID,
55 TNC_ConnectionState newState);
56 TNC_Result (*ReceiveMessage)(
58 TNC_ConnectionID connectionID,
59 TNC_BufferReference message,
60 TNC_UInt32 messageLength,
61 TNC_MessageType messageType);
62 TNC_Result (*SolicitRecommendation)(
64 TNC_ConnectionID connectionID);
65 TNC_Result (*BatchEnding)(
67 TNC_ConnectionID connectionID);
68 TNC_Result (*Terminate)(TNC_IMVID imvID);
69 TNC_Result (*ProvideBindFunction)(
71 TNC_TNCS_BindFunctionPointer bindFunction);
75 #define TNC_MAX_IMV_ID 10
78 struct tncs_data *next;
79 struct tnc_if_imv *imv; /* local copy of tncs_global_data->imv */
80 TNC_ConnectionID connectionID;
81 unsigned int last_batchid;
82 enum IMV_Action_Recommendation recommendation;
88 enum IMV_Action_Recommendation recommendation;
89 int recommendation_set;
90 } imv_data[TNC_MAX_IMV_ID];
97 struct tnc_if_imv *imv;
98 TNC_ConnectionID next_conn_id;
99 struct tncs_data *connections;
102 static struct tncs_global *tncs_global_data = NULL;
105 static struct tnc_if_imv * tncs_get_imv(TNC_IMVID imvID)
107 struct tnc_if_imv *imv;
109 if (imvID >= TNC_MAX_IMV_ID || tncs_global_data == NULL)
111 imv = tncs_global_data->imv;
113 if (imv->imvID == imvID)
121 static struct tncs_data * tncs_get_conn(TNC_ConnectionID connectionID)
123 struct tncs_data *tncs;
125 if (tncs_global_data == NULL)
128 tncs = tncs_global_data->connections;
130 if (tncs->connectionID == connectionID)
135 wpa_printf(MSG_DEBUG, "TNC: Connection ID %lu not found",
136 (unsigned long) connectionID);
142 /* TNCS functions that IMVs can call */
143 TNC_Result TNC_TNCS_ReportMessageTypes(
145 TNC_MessageTypeList supportedTypes,
146 TNC_UInt32 typeCount)
149 struct tnc_if_imv *imv;
151 wpa_printf(MSG_DEBUG, "TNC: TNC_TNCS_ReportMessageTypes(imvID=%lu "
153 (unsigned long) imvID, (unsigned long) typeCount);
155 for (i = 0; i < typeCount; i++) {
156 wpa_printf(MSG_DEBUG, "TNC: supportedTypes[%lu] = %lu",
157 i, supportedTypes[i]);
160 imv = tncs_get_imv(imvID);
162 return TNC_RESULT_INVALID_PARAMETER;
163 os_free(imv->supported_types);
164 imv->supported_types =
165 os_malloc(typeCount * sizeof(TNC_MessageType));
166 if (imv->supported_types == NULL)
167 return TNC_RESULT_FATAL;
168 os_memcpy(imv->supported_types, supportedTypes,
169 typeCount * sizeof(TNC_MessageType));
170 imv->num_supported_types = typeCount;
172 return TNC_RESULT_SUCCESS;
176 TNC_Result TNC_TNCS_SendMessage(
178 TNC_ConnectionID connectionID,
179 TNC_BufferReference message,
180 TNC_UInt32 messageLength,
181 TNC_MessageType messageType)
183 struct tncs_data *tncs;
187 wpa_printf(MSG_DEBUG, "TNC: TNC_TNCS_SendMessage(imvID=%lu "
188 "connectionID=%lu messageType=%lu)",
189 imvID, connectionID, messageType);
190 wpa_hexdump_ascii(MSG_DEBUG, "TNC: TNC_TNCS_SendMessage",
191 message, messageLength);
193 if (tncs_get_imv(imvID) == NULL)
194 return TNC_RESULT_INVALID_PARAMETER;
196 tncs = tncs_get_conn(connectionID);
198 return TNC_RESULT_INVALID_PARAMETER;
200 b64 = base64_encode(message, messageLength, &b64len);
202 return TNC_RESULT_FATAL;
204 os_free(tncs->imv_data[imvID].imv_send);
205 tncs->imv_data[imvID].imv_send_len = 0;
206 tncs->imv_data[imvID].imv_send = os_zalloc(b64len + 100);
207 if (tncs->imv_data[imvID].imv_send == NULL) {
209 return TNC_RESULT_OTHER;
212 tncs->imv_data[imvID].imv_send_len =
213 os_snprintf((char *) tncs->imv_data[imvID].imv_send,
215 "<IMC-IMV-Message><Type>%08X</Type>"
216 "<Base64>%s</Base64></IMC-IMV-Message>",
217 (unsigned int) messageType, b64);
221 return TNC_RESULT_SUCCESS;
225 TNC_Result TNC_TNCS_RequestHandshakeRetry(
227 TNC_ConnectionID connectionID,
228 TNC_RetryReason reason)
230 wpa_printf(MSG_DEBUG, "TNC: TNC_TNCS_RequestHandshakeRetry");
232 return TNC_RESULT_SUCCESS;
236 TNC_Result TNC_TNCS_ProvideRecommendation(
238 TNC_ConnectionID connectionID,
239 TNC_IMV_Action_Recommendation recommendation,
240 TNC_IMV_Evaluation_Result evaluation)
242 struct tncs_data *tncs;
244 wpa_printf(MSG_DEBUG, "TNC: TNC_TNCS_ProvideRecommendation(imvID=%lu "
245 "connectionID=%lu recommendation=%lu evaluation=%lu)",
246 (unsigned long) imvID, (unsigned long) connectionID,
247 (unsigned long) recommendation, (unsigned long) evaluation);
249 if (tncs_get_imv(imvID) == NULL)
250 return TNC_RESULT_INVALID_PARAMETER;
252 tncs = tncs_get_conn(connectionID);
254 return TNC_RESULT_INVALID_PARAMETER;
256 tncs->imv_data[imvID].recommendation = recommendation;
257 tncs->imv_data[imvID].recommendation_set = 1;
259 return TNC_RESULT_SUCCESS;
263 TNC_Result TNC_TNCS_GetAttribute(
265 TNC_ConnectionID connectionID,
266 TNC_AttributeID attribureID,
267 TNC_UInt32 bufferLength,
268 TNC_BufferReference buffer,
269 TNC_UInt32 *pOutValueLength)
271 wpa_printf(MSG_DEBUG, "TNC: TNC_TNCS_GetAttribute");
273 return TNC_RESULT_SUCCESS;
277 TNC_Result TNC_TNCS_SetAttribute(
279 TNC_ConnectionID connectionID,
280 TNC_AttributeID attribureID,
281 TNC_UInt32 bufferLength,
282 TNC_BufferReference buffer)
284 wpa_printf(MSG_DEBUG, "TNC: TNC_TNCS_SetAttribute");
286 return TNC_RESULT_SUCCESS;
290 TNC_Result TNC_TNCS_BindFunction(
293 void **pOutFunctionPointer)
295 wpa_printf(MSG_DEBUG, "TNC: TNC_TNCS_BindFunction(imcID=%lu, "
296 "functionName='%s')", (unsigned long) imvID, functionName);
298 if (tncs_get_imv(imvID) == NULL)
299 return TNC_RESULT_INVALID_PARAMETER;
301 if (pOutFunctionPointer == NULL)
302 return TNC_RESULT_INVALID_PARAMETER;
304 if (os_strcmp(functionName, "TNC_TNCS_ReportMessageTypes") == 0)
305 *pOutFunctionPointer = TNC_TNCS_ReportMessageTypes;
306 else if (os_strcmp(functionName, "TNC_TNCS_SendMessage") == 0)
307 *pOutFunctionPointer = TNC_TNCS_SendMessage;
308 else if (os_strcmp(functionName, "TNC_TNCS_RequestHandshakeRetry") ==
310 *pOutFunctionPointer = TNC_TNCS_RequestHandshakeRetry;
311 else if (os_strcmp(functionName, "TNC_TNCS_ProvideRecommendation") ==
313 *pOutFunctionPointer = TNC_TNCS_ProvideRecommendation;
314 else if (os_strcmp(functionName, "TNC_TNCS_GetAttribute") == 0)
315 *pOutFunctionPointer = TNC_TNCS_GetAttribute;
316 else if (os_strcmp(functionName, "TNC_TNCS_SetAttribute") == 0)
317 *pOutFunctionPointer = TNC_TNCS_SetAttribute;
319 *pOutFunctionPointer = NULL;
321 return TNC_RESULT_SUCCESS;
325 static void * tncs_get_sym(void *handle, char *func)
329 fptr = dlsym(handle, func);
335 static int tncs_imv_resolve_funcs(struct tnc_if_imv *imv)
337 void *handle = imv->dlhandle;
339 /* Mandatory IMV functions */
340 imv->Initialize = tncs_get_sym(handle, "TNC_IMV_Initialize");
341 if (imv->Initialize == NULL) {
342 wpa_printf(MSG_ERROR, "TNC: IMV does not export "
343 "TNC_IMV_Initialize");
347 imv->SolicitRecommendation = tncs_get_sym(
348 handle, "TNC_IMV_SolicitRecommendation");
349 if (imv->SolicitRecommendation == NULL) {
350 wpa_printf(MSG_ERROR, "TNC: IMV does not export "
351 "TNC_IMV_SolicitRecommendation");
355 imv->ProvideBindFunction =
356 tncs_get_sym(handle, "TNC_IMV_ProvideBindFunction");
357 if (imv->ProvideBindFunction == NULL) {
358 wpa_printf(MSG_ERROR, "TNC: IMV does not export "
359 "TNC_IMV_ProvideBindFunction");
363 /* Optional IMV functions */
364 imv->NotifyConnectionChange =
365 tncs_get_sym(handle, "TNC_IMV_NotifyConnectionChange");
366 imv->ReceiveMessage = tncs_get_sym(handle, "TNC_IMV_ReceiveMessage");
367 imv->BatchEnding = tncs_get_sym(handle, "TNC_IMV_BatchEnding");
368 imv->Terminate = tncs_get_sym(handle, "TNC_IMV_Terminate");
374 static int tncs_imv_initialize(struct tnc_if_imv *imv)
379 wpa_printf(MSG_DEBUG, "TNC: Calling TNC_IMV_Initialize for IMV '%s'",
381 res = imv->Initialize(imv->imvID, TNC_IFIMV_VERSION_1,
382 TNC_IFIMV_VERSION_1, &imv_ver);
383 wpa_printf(MSG_DEBUG, "TNC: TNC_IMV_Initialize: res=%lu imv_ver=%lu",
384 (unsigned long) res, (unsigned long) imv_ver);
386 return res == TNC_RESULT_SUCCESS ? 0 : -1;
390 static int tncs_imv_terminate(struct tnc_if_imv *imv)
394 if (imv->Terminate == NULL)
397 wpa_printf(MSG_DEBUG, "TNC: Calling TNC_IMV_Terminate for IMV '%s'",
399 res = imv->Terminate(imv->imvID);
400 wpa_printf(MSG_DEBUG, "TNC: TNC_IMV_Terminate: %lu",
401 (unsigned long) res);
403 return res == TNC_RESULT_SUCCESS ? 0 : -1;
407 static int tncs_imv_provide_bind_function(struct tnc_if_imv *imv)
411 wpa_printf(MSG_DEBUG, "TNC: Calling TNC_IMV_ProvideBindFunction for "
412 "IMV '%s'", imv->name);
413 res = imv->ProvideBindFunction(imv->imvID, TNC_TNCS_BindFunction);
414 wpa_printf(MSG_DEBUG, "TNC: TNC_IMV_ProvideBindFunction: res=%lu",
415 (unsigned long) res);
417 return res == TNC_RESULT_SUCCESS ? 0 : -1;
421 static int tncs_imv_notify_connection_change(struct tnc_if_imv *imv,
422 TNC_ConnectionID conn,
423 TNC_ConnectionState state)
427 if (imv->NotifyConnectionChange == NULL)
430 wpa_printf(MSG_DEBUG, "TNC: Calling TNC_IMV_NotifyConnectionChange(%d)"
431 " for IMV '%s'", (int) state, imv->name);
432 res = imv->NotifyConnectionChange(imv->imvID, conn, state);
433 wpa_printf(MSG_DEBUG, "TNC: TNC_IMC_NotifyConnectionChange: %lu",
434 (unsigned long) res);
436 return res == TNC_RESULT_SUCCESS ? 0 : -1;
440 static int tncs_load_imv(struct tnc_if_imv *imv)
442 if (imv->path == NULL) {
443 wpa_printf(MSG_DEBUG, "TNC: No IMV configured");
447 wpa_printf(MSG_DEBUG, "TNC: Opening IMV: %s (%s)",
448 imv->name, imv->path);
449 imv->dlhandle = dlopen(imv->path, RTLD_LAZY);
450 if (imv->dlhandle == NULL) {
451 wpa_printf(MSG_ERROR, "TNC: Failed to open IMV '%s' (%s): %s",
452 imv->name, imv->path, dlerror());
456 if (tncs_imv_resolve_funcs(imv) < 0) {
457 wpa_printf(MSG_ERROR, "TNC: Failed to resolve IMV functions");
461 if (tncs_imv_initialize(imv) < 0 ||
462 tncs_imv_provide_bind_function(imv) < 0) {
463 wpa_printf(MSG_ERROR, "TNC: Failed to initialize IMV");
471 static void tncs_free_imv(struct tnc_if_imv *imv)
475 os_free(imv->supported_types);
478 static void tncs_unload_imv(struct tnc_if_imv *imv)
480 tncs_imv_terminate(imv);
483 dlclose(imv->dlhandle);
489 static int tncs_supported_type(struct tnc_if_imv *imv, unsigned int type)
492 unsigned int vendor, subtype;
494 if (imv == NULL || imv->supported_types == NULL)
498 subtype = type & 0xff;
500 for (i = 0; i < imv->num_supported_types; i++) {
501 unsigned int svendor, ssubtype;
502 svendor = imv->supported_types[i] >> 8;
503 ssubtype = imv->supported_types[i] & 0xff;
504 if ((vendor == svendor || svendor == TNC_VENDORID_ANY) &&
505 (subtype == ssubtype || ssubtype == TNC_SUBTYPE_ANY))
513 static void tncs_send_to_imvs(struct tncs_data *tncs, unsigned int type,
514 const u8 *msg, size_t len)
516 struct tnc_if_imv *imv;
519 wpa_hexdump_ascii(MSG_MSGDUMP, "TNC: Message to IMV(s)", msg, len);
521 for (imv = tncs->imv; imv; imv = imv->next) {
522 if (imv->ReceiveMessage == NULL ||
523 !tncs_supported_type(imv, type))
526 wpa_printf(MSG_DEBUG, "TNC: Call ReceiveMessage for IMV '%s'",
528 res = imv->ReceiveMessage(imv->imvID, tncs->connectionID,
529 (TNC_BufferReference) msg, len,
531 wpa_printf(MSG_DEBUG, "TNC: ReceiveMessage: %lu",
532 (unsigned long) res);
537 static void tncs_batch_ending(struct tncs_data *tncs)
539 struct tnc_if_imv *imv;
542 for (imv = tncs->imv; imv; imv = imv->next) {
543 if (imv->BatchEnding == NULL)
546 wpa_printf(MSG_DEBUG, "TNC: Call BatchEnding for IMV '%s'",
548 res = imv->BatchEnding(imv->imvID, tncs->connectionID);
549 wpa_printf(MSG_DEBUG, "TNC: BatchEnding: %lu",
550 (unsigned long) res);
555 static void tncs_solicit_recommendation(struct tncs_data *tncs)
557 struct tnc_if_imv *imv;
560 for (imv = tncs->imv; imv; imv = imv->next) {
561 if (tncs->imv_data[imv->imvID].recommendation_set)
564 wpa_printf(MSG_DEBUG, "TNC: Call SolicitRecommendation for "
565 "IMV '%s'", imv->name);
566 res = imv->SolicitRecommendation(imv->imvID,
568 wpa_printf(MSG_DEBUG, "TNC: SolicitRecommendation: %lu",
569 (unsigned long) res);
574 void tncs_init_connection(struct tncs_data *tncs)
576 struct tnc_if_imv *imv;
579 for (imv = tncs->imv; imv; imv = imv->next) {
580 tncs_imv_notify_connection_change(
581 imv, tncs->connectionID, TNC_CONNECTION_STATE_CREATE);
582 tncs_imv_notify_connection_change(
583 imv, tncs->connectionID,
584 TNC_CONNECTION_STATE_HANDSHAKE);
587 for (i = 0; i < TNC_MAX_IMV_ID; i++) {
588 os_free(tncs->imv_data[i].imv_send);
589 tncs->imv_data[i].imv_send = NULL;
590 tncs->imv_data[i].imv_send_len = 0;
595 size_t tncs_total_send_len(struct tncs_data *tncs)
600 for (i = 0; i < TNC_MAX_IMV_ID; i++)
601 len += tncs->imv_data[i].imv_send_len;
602 if (tncs->tncs_message)
603 len += os_strlen(tncs->tncs_message);
608 u8 * tncs_copy_send_buf(struct tncs_data *tncs, u8 *pos)
612 for (i = 0; i < TNC_MAX_IMV_ID; i++) {
613 if (tncs->imv_data[i].imv_send == NULL)
616 os_memcpy(pos, tncs->imv_data[i].imv_send,
617 tncs->imv_data[i].imv_send_len);
618 pos += tncs->imv_data[i].imv_send_len;
619 os_free(tncs->imv_data[i].imv_send);
620 tncs->imv_data[i].imv_send = NULL;
621 tncs->imv_data[i].imv_send_len = 0;
624 if (tncs->tncs_message) {
625 size_t len = os_strlen(tncs->tncs_message);
626 os_memcpy(pos, tncs->tncs_message, len);
628 os_free(tncs->tncs_message);
629 tncs->tncs_message = NULL;
636 char * tncs_if_tnccs_start(struct tncs_data *tncs)
638 char *buf = os_malloc(1000);
641 tncs->last_batchid++;
642 os_snprintf(buf, 1000, IF_TNCCS_START, tncs->last_batchid);
647 char * tncs_if_tnccs_end(void)
649 char *buf = os_malloc(100);
652 os_snprintf(buf, 100, IF_TNCCS_END);
657 static int tncs_get_type(char *start, unsigned int *type)
659 char *pos = os_strstr(start, "<Type>");
663 *type = strtoul(pos, NULL, 16);
668 static unsigned char * tncs_get_base64(char *start, size_t *decoded_len)
671 unsigned char *decoded;
673 pos = os_strstr(start, "<Base64>");
678 pos2 = os_strstr(pos, "</Base64>");
683 decoded = base64_decode((unsigned char *) pos, os_strlen(pos),
686 if (decoded == NULL) {
687 wpa_printf(MSG_DEBUG, "TNC: Failed to decode Base64 data");
694 static enum tncs_process_res tncs_derive_recommendation(struct tncs_data *tncs)
696 enum IMV_Action_Recommendation rec;
697 struct tnc_if_imv *imv;
698 TNC_ConnectionState state;
701 wpa_printf(MSG_DEBUG, "TNC: No more messages from IMVs");
704 return TNCCS_PROCESS_OK_NO_RECOMMENDATION;
706 tncs_solicit_recommendation(tncs);
708 /* Select the most restrictive recommendation */
709 rec = TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION;
710 for (imv = tncs->imv; imv; imv = imv->next) {
711 TNC_IMV_Action_Recommendation irec;
712 irec = tncs->imv_data[imv->imvID].recommendation;
713 if (irec == TNC_IMV_ACTION_RECOMMENDATION_NO_ACCESS)
714 rec = TNC_IMV_ACTION_RECOMMENDATION_NO_ACCESS;
715 if (irec == TNC_IMV_ACTION_RECOMMENDATION_ISOLATE &&
716 rec != TNC_IMV_ACTION_RECOMMENDATION_NO_ACCESS)
717 rec = TNC_IMV_ACTION_RECOMMENDATION_ISOLATE;
718 if (irec == TNC_IMV_ACTION_RECOMMENDATION_ALLOW &&
719 rec == TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION)
720 rec = TNC_IMV_ACTION_RECOMMENDATION_ALLOW;
723 wpa_printf(MSG_DEBUG, "TNC: Recommendation: %d", rec);
724 tncs->recommendation = rec;
729 case TNC_IMV_ACTION_RECOMMENDATION_ALLOW:
730 case TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION:
732 state = TNC_CONNECTION_STATE_ACCESS_ALLOWED;
734 case TNC_IMV_ACTION_RECOMMENDATION_ISOLATE:
736 state = TNC_CONNECTION_STATE_ACCESS_ISOLATED;
738 case TNC_IMV_ACTION_RECOMMENDATION_NO_ACCESS:
740 state = TNC_CONNECTION_STATE_ACCESS_NONE;
743 state = TNC_CONNECTION_STATE_ACCESS_ALLOWED;
748 os_free(tncs->tncs_message);
749 tncs->tncs_message = os_zalloc(200);
750 if (tncs->tncs_message) {
751 os_snprintf(tncs->tncs_message, 199,
752 "<TNCC-TNCS-Message><Type>%08X</Type>"
753 "<XML><TNCCS-Recommendation type=\"%s\">"
754 "</TNCCS-Recommendation></XML>"
755 "</TNCC-TNCS-Message>",
756 TNC_TNCCS_RECOMMENDATION, txt);
760 for (imv = tncs->imv; imv; imv = imv->next) {
761 tncs_imv_notify_connection_change(imv, tncs->connectionID,
766 case TNC_IMV_ACTION_RECOMMENDATION_ALLOW:
767 return TNCCS_RECOMMENDATION_ALLOW;
768 case TNC_IMV_ACTION_RECOMMENDATION_NO_ACCESS:
769 return TNCCS_RECOMMENDATION_NO_ACCESS;
770 case TNC_IMV_ACTION_RECOMMENDATION_ISOLATE:
771 return TNCCS_RECOMMENDATION_ISOLATE;
772 case TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION:
773 return TNCCS_RECOMMENDATION_NO_RECOMMENDATION;
775 return TNCCS_PROCESS_ERROR;
780 enum tncs_process_res tncs_process_if_tnccs(struct tncs_data *tncs,
781 const u8 *msg, size_t len)
783 char *buf, *start, *end, *pos, *pos2, *payload;
784 unsigned int batch_id;
785 unsigned char *decoded;
788 buf = dup_binstr(msg, len);
790 return TNCCS_PROCESS_ERROR;
792 start = os_strstr(buf, "<TNCCS-Batch ");
793 end = os_strstr(buf, "</TNCCS-Batch>");
794 if (start == NULL || end == NULL || start > end) {
796 return TNCCS_PROCESS_ERROR;
800 while (*start == ' ')
804 pos = os_strstr(start, "BatchId=");
807 return TNCCS_PROCESS_ERROR;
813 batch_id = atoi(pos);
814 wpa_printf(MSG_DEBUG, "TNC: Received IF-TNCCS BatchId=%u",
816 if (batch_id != tncs->last_batchid + 1) {
817 wpa_printf(MSG_DEBUG, "TNC: Unexpected IF-TNCCS BatchId "
819 batch_id, tncs->last_batchid + 1);
821 return TNCCS_PROCESS_ERROR;
823 tncs->last_batchid = batch_id;
825 while (*pos != '\0' && *pos != '>')
829 return TNCCS_PROCESS_ERROR;
836 * <Type>01234567</Type>
837 * <Base64>foo==</Base64>
845 pos = os_strstr(start, "<IMC-IMV-Message>");
849 end = os_strstr(start, "</IMC-IMV-Message>");
856 if (tncs_get_type(start, &type) < 0) {
861 wpa_printf(MSG_DEBUG, "TNC: IMC-IMV-Message Type 0x%x", type);
863 decoded = tncs_get_base64(start, &decoded_len);
864 if (decoded == NULL) {
870 tncs_send_to_imvs(tncs, type, decoded, decoded_len);
878 * <TNCC-TNCS-Message>
879 * <Type>01234567</Type>
880 * <XML><TNCCS-Foo type="foo"></TNCCS-Foo></XML>
881 * <Base64>foo==</Base64>
882 * </TNCC-TNCS-Message>
888 char *xml, *xmlend, *endpos;
890 pos = os_strstr(start, "<TNCC-TNCS-Message>");
894 end = os_strstr(start, "</TNCC-TNCS-Message>");
901 if (tncs_get_type(start, &type) < 0) {
906 wpa_printf(MSG_DEBUG, "TNC: TNCC-TNCS-Message Type 0x%x",
913 pos = os_strstr(start, "<XML>");
916 pos2 = os_strstr(pos, "</XML>");
925 decoded = tncs_get_base64(start, &decoded_len);
926 if (decoded == NULL) {
934 wpa_hexdump_ascii(MSG_MSGDUMP,
935 "TNC: TNCC-TNCS-Message Base64",
936 decoded, decoded_len);
941 wpa_hexdump_ascii(MSG_MSGDUMP,
942 "TNC: TNCC-TNCS-Message XML",
943 (unsigned char *) xml,
952 tncs_batch_ending(tncs);
954 if (tncs_total_send_len(tncs) == 0)
955 return tncs_derive_recommendation(tncs);
957 return TNCCS_PROCESS_OK_NO_RECOMMENDATION;
961 static struct tnc_if_imv * tncs_parse_imv(int id, char *start, char *end,
964 struct tnc_if_imv *imv;
967 if (id >= TNC_MAX_IMV_ID) {
968 wpa_printf(MSG_DEBUG, "TNC: Too many IMVs");
972 imv = os_zalloc(sizeof(*imv));
981 wpa_printf(MSG_DEBUG, "TNC: Configured IMV: %s", pos);
982 if (pos + 1 >= end || *pos != '"') {
983 wpa_printf(MSG_ERROR, "TNC: Ignoring invalid IMV line '%s' "
984 "(no starting quotation mark)", start);
991 while (pos2 < end && *pos2 != '"')
994 wpa_printf(MSG_ERROR, "TNC: Ignoring invalid IMV line '%s' "
995 "(no ending quotation mark)", start);
1000 wpa_printf(MSG_DEBUG, "TNC: Name: '%s'", pos);
1001 imv->name = os_strdup(pos);
1004 if (pos >= end || *pos != ' ') {
1005 wpa_printf(MSG_ERROR, "TNC: Ignoring invalid IMV line '%s' "
1006 "(no space after name)", start);
1012 wpa_printf(MSG_DEBUG, "TNC: IMV file: '%s'", pos);
1013 imv->path = os_strdup(pos);
1019 static int tncs_read_config(struct tncs_global *global)
1021 char *config, *end, *pos, *line_end;
1023 struct tnc_if_imv *imv, *last;
1028 config = os_readfile(TNC_CONFIG_FILE, &config_len);
1029 if (config == NULL) {
1030 wpa_printf(MSG_ERROR, "TNC: Could not open TNC configuration "
1031 "file '%s'", TNC_CONFIG_FILE);
1035 end = config + config_len;
1036 for (pos = config; pos < end; pos = line_end + 1) {
1038 while (*line_end != '\n' && *line_end != '\r' &&
1043 if (os_strncmp(pos, "IMV ", 4) == 0) {
1046 imv = tncs_parse_imv(id++, pos + 4, line_end, &error);
1065 struct tncs_data * tncs_init(void)
1067 struct tncs_data *tncs;
1069 if (tncs_global_data == NULL)
1072 tncs = os_zalloc(sizeof(*tncs));
1075 tncs->imv = tncs_global_data->imv;
1076 tncs->connectionID = tncs_global_data->next_conn_id++;
1077 tncs->next = tncs_global_data->connections;
1078 tncs_global_data->connections = tncs;
1084 void tncs_deinit(struct tncs_data *tncs)
1087 struct tncs_data *prev, *conn;
1092 for (i = 0; i < TNC_MAX_IMV_ID; i++)
1093 os_free(tncs->imv_data[i].imv_send);
1096 conn = tncs_global_data->connections;
1100 prev->next = tncs->next;
1102 tncs_global_data->connections = tncs->next;
1109 os_free(tncs->tncs_message);
1114 int tncs_global_init(void)
1116 struct tnc_if_imv *imv;
1118 if (tncs_global_data)
1121 tncs_global_data = os_zalloc(sizeof(*tncs_global_data));
1122 if (tncs_global_data == NULL)
1125 if (tncs_read_config(tncs_global_data) < 0) {
1126 wpa_printf(MSG_ERROR, "TNC: Failed to read TNC configuration");
1130 for (imv = tncs_global_data->imv; imv; imv = imv->next) {
1131 if (tncs_load_imv(imv)) {
1132 wpa_printf(MSG_ERROR, "TNC: Failed to load IMV '%s'",
1141 tncs_global_deinit();
1146 void tncs_global_deinit(void)
1148 struct tnc_if_imv *imv, *prev;
1150 if (tncs_global_data == NULL)
1153 imv = tncs_global_data->imv;
1155 tncs_unload_imv(imv);
1162 os_free(tncs_global_data);
1163 tncs_global_data = NULL;
1167 struct wpabuf * tncs_build_soh_request(void)
1172 * Build a SoH Request TLV (to be used inside SoH EAP Extensions
1176 buf = wpabuf_alloc(8 + 4);
1180 /* Vendor-Specific TLV (Microsoft) - SoH Request */
1181 wpabuf_put_be16(buf, EAP_TLV_VENDOR_SPECIFIC_TLV); /* TLV Type */
1182 wpabuf_put_be16(buf, 8); /* Length */
1184 wpabuf_put_be32(buf, EAP_VENDOR_MICROSOFT); /* Vendor_Id */
1186 wpabuf_put_be16(buf, 0x02); /* TLV Type - SoH Request TLV */
1187 wpabuf_put_be16(buf, 0); /* Length */
1193 struct wpabuf * tncs_process_soh(const u8 *soh_tlv, size_t soh_tlv_len,
1196 wpa_hexdump(MSG_DEBUG, "TNC: SoH TLV", soh_tlv, soh_tlv_len);
1199 /* TODO: return MS-SoH Response TLV */