tncc.c revision 281806
1189251Ssam/* 2189251Ssam * EAP-TNC - TNCC (IF-IMC and IF-TNCCS) 3189251Ssam * Copyright (c) 2007, Jouni Malinen <j@w1.fi> 4189251Ssam * 5252726Srpaulo * This software may be distributed under the terms of the BSD license. 6252726Srpaulo * See README for more details. 7189251Ssam */ 8189251Ssam 9189251Ssam#include "includes.h" 10189251Ssam#ifndef CONFIG_NATIVE_WINDOWS 11189251Ssam#include <dlfcn.h> 12189251Ssam#endif /* CONFIG_NATIVE_WINDOWS */ 13189251Ssam 14189251Ssam#include "common.h" 15189251Ssam#include "base64.h" 16281806Srpaulo#include "common/tnc.h" 17189251Ssam#include "tncc.h" 18189251Ssam#include "eap_common/eap_tlv_common.h" 19189251Ssam#include "eap_common/eap_defs.h" 20189251Ssam 21189251Ssam 22189251Ssam#ifdef UNICODE 23189251Ssam#define TSTR "%S" 24189251Ssam#else /* UNICODE */ 25189251Ssam#define TSTR "%s" 26189251Ssam#endif /* UNICODE */ 27189251Ssam 28189251Ssam 29281806Srpaulo#ifndef TNC_CONFIG_FILE 30189251Ssam#define TNC_CONFIG_FILE "/etc/tnc_config" 31281806Srpaulo#endif /* TNC_CONFIG_FILE */ 32189251Ssam#define TNC_WINREG_PATH TEXT("SOFTWARE\\Trusted Computing Group\\TNC\\IMCs") 33189251Ssam#define IF_TNCCS_START \ 34189251Ssam"<?xml version=\"1.0\"?>\n" \ 35189251Ssam"<TNCCS-Batch BatchId=\"%d\" Recipient=\"TNCS\" " \ 36189251Ssam"xmlns=\"http://www.trustedcomputinggroup.org/IWG/TNC/1_0/IF_TNCCS#\" " \ 37189251Ssam"xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" " \ 38189251Ssam"xsi:schemaLocation=\"http://www.trustedcomputinggroup.org/IWG/TNC/1_0/" \ 39189251Ssam"IF_TNCCS# https://www.trustedcomputinggroup.org/XML/SCHEMA/TNCCS_1.0.xsd\">\n" 40189251Ssam#define IF_TNCCS_END "\n</TNCCS-Batch>" 41189251Ssam 42189251Ssam/* TNC IF-IMC */ 43189251Ssam 44189251Ssam/* IF-TNCCS-SOH - SSoH and SSoHR Attributes */ 45189251Ssamenum { 46189251Ssam SSOH_MS_MACHINE_INVENTORY = 1, 47189251Ssam SSOH_MS_QUARANTINE_STATE = 2, 48189251Ssam SSOH_MS_PACKET_INFO = 3, 49189251Ssam SSOH_MS_SYSTEMGENERATED_IDS = 4, 50189251Ssam SSOH_MS_MACHINENAME = 5, 51189251Ssam SSOH_MS_CORRELATIONID = 6, 52189251Ssam SSOH_MS_INSTALLED_SHVS = 7, 53189251Ssam SSOH_MS_MACHINE_INVENTORY_EX = 8 54189251Ssam}; 55189251Ssam 56189251Ssamstruct tnc_if_imc { 57189251Ssam struct tnc_if_imc *next; 58189251Ssam char *name; 59189251Ssam char *path; 60189251Ssam void *dlhandle; /* from dlopen() */ 61189251Ssam TNC_IMCID imcID; 62189251Ssam TNC_ConnectionID connectionID; 63189251Ssam TNC_MessageTypeList supported_types; 64189251Ssam size_t num_supported_types; 65189251Ssam u8 *imc_send; 66189251Ssam size_t imc_send_len; 67189251Ssam 68189251Ssam /* Functions implemented by IMCs (with TNC_IMC_ prefix) */ 69189251Ssam TNC_Result (*Initialize)( 70189251Ssam TNC_IMCID imcID, 71189251Ssam TNC_Version minVersion, 72189251Ssam TNC_Version maxVersion, 73189251Ssam TNC_Version *pOutActualVersion); 74189251Ssam TNC_Result (*NotifyConnectionChange)( 75189251Ssam TNC_IMCID imcID, 76189251Ssam TNC_ConnectionID connectionID, 77189251Ssam TNC_ConnectionState newState); 78189251Ssam TNC_Result (*BeginHandshake)( 79189251Ssam TNC_IMCID imcID, 80189251Ssam TNC_ConnectionID connectionID); 81189251Ssam TNC_Result (*ReceiveMessage)( 82189251Ssam TNC_IMCID imcID, 83189251Ssam TNC_ConnectionID connectionID, 84189251Ssam TNC_BufferReference messageBuffer, 85189251Ssam TNC_UInt32 messageLength, 86189251Ssam TNC_MessageType messageType); 87189251Ssam TNC_Result (*BatchEnding)( 88189251Ssam TNC_IMCID imcID, 89189251Ssam TNC_ConnectionID connectionID); 90189251Ssam TNC_Result (*Terminate)(TNC_IMCID imcID); 91189251Ssam TNC_Result (*ProvideBindFunction)( 92189251Ssam TNC_IMCID imcID, 93189251Ssam TNC_TNCC_BindFunctionPointer bindFunction); 94189251Ssam}; 95189251Ssam 96189251Ssamstruct tncc_data { 97189251Ssam struct tnc_if_imc *imc; 98189251Ssam unsigned int last_batchid; 99189251Ssam}; 100189251Ssam 101189251Ssam#define TNC_MAX_IMC_ID 10 102189251Ssamstatic struct tnc_if_imc *tnc_imc[TNC_MAX_IMC_ID] = { NULL }; 103189251Ssam 104189251Ssam 105189251Ssam/* TNCC functions that IMCs can call */ 106189251Ssam 107189251SsamTNC_Result TNC_TNCC_ReportMessageTypes( 108189251Ssam TNC_IMCID imcID, 109189251Ssam TNC_MessageTypeList supportedTypes, 110189251Ssam TNC_UInt32 typeCount) 111189251Ssam{ 112189251Ssam TNC_UInt32 i; 113189251Ssam struct tnc_if_imc *imc; 114189251Ssam 115189251Ssam wpa_printf(MSG_DEBUG, "TNC: TNC_TNCC_ReportMessageTypes(imcID=%lu " 116189251Ssam "typeCount=%lu)", 117189251Ssam (unsigned long) imcID, (unsigned long) typeCount); 118189251Ssam 119189251Ssam for (i = 0; i < typeCount; i++) { 120189251Ssam wpa_printf(MSG_DEBUG, "TNC: supportedTypes[%lu] = %lu", 121189251Ssam i, supportedTypes[i]); 122189251Ssam } 123189251Ssam 124189251Ssam if (imcID >= TNC_MAX_IMC_ID || tnc_imc[imcID] == NULL) 125189251Ssam return TNC_RESULT_INVALID_PARAMETER; 126189251Ssam 127189251Ssam imc = tnc_imc[imcID]; 128189251Ssam os_free(imc->supported_types); 129189251Ssam imc->supported_types = 130252726Srpaulo os_malloc(typeCount * sizeof(TNC_MessageType)); 131189251Ssam if (imc->supported_types == NULL) 132189251Ssam return TNC_RESULT_FATAL; 133189251Ssam os_memcpy(imc->supported_types, supportedTypes, 134252726Srpaulo typeCount * sizeof(TNC_MessageType)); 135189251Ssam imc->num_supported_types = typeCount; 136189251Ssam 137189251Ssam return TNC_RESULT_SUCCESS; 138189251Ssam} 139189251Ssam 140189251Ssam 141189251SsamTNC_Result TNC_TNCC_SendMessage( 142189251Ssam TNC_IMCID imcID, 143189251Ssam TNC_ConnectionID connectionID, 144189251Ssam TNC_BufferReference message, 145189251Ssam TNC_UInt32 messageLength, 146189251Ssam TNC_MessageType messageType) 147189251Ssam{ 148189251Ssam struct tnc_if_imc *imc; 149189251Ssam unsigned char *b64; 150189251Ssam size_t b64len; 151189251Ssam 152189251Ssam wpa_printf(MSG_DEBUG, "TNC: TNC_TNCC_SendMessage(imcID=%lu " 153189251Ssam "connectionID=%lu messageType=%lu)", 154189251Ssam imcID, connectionID, messageType); 155189251Ssam wpa_hexdump_ascii(MSG_DEBUG, "TNC: TNC_TNCC_SendMessage", 156189251Ssam message, messageLength); 157189251Ssam 158189251Ssam if (imcID >= TNC_MAX_IMC_ID || tnc_imc[imcID] == NULL) 159189251Ssam return TNC_RESULT_INVALID_PARAMETER; 160189251Ssam 161189251Ssam b64 = base64_encode(message, messageLength, &b64len); 162189251Ssam if (b64 == NULL) 163189251Ssam return TNC_RESULT_FATAL; 164189251Ssam 165189251Ssam imc = tnc_imc[imcID]; 166189251Ssam os_free(imc->imc_send); 167189251Ssam imc->imc_send_len = 0; 168189251Ssam imc->imc_send = os_zalloc(b64len + 100); 169189251Ssam if (imc->imc_send == NULL) { 170189251Ssam os_free(b64); 171189251Ssam return TNC_RESULT_OTHER; 172189251Ssam } 173189251Ssam 174189251Ssam imc->imc_send_len = 175189251Ssam os_snprintf((char *) imc->imc_send, b64len + 100, 176189251Ssam "<IMC-IMV-Message><Type>%08X</Type>" 177189251Ssam "<Base64>%s</Base64></IMC-IMV-Message>", 178189251Ssam (unsigned int) messageType, b64); 179189251Ssam 180189251Ssam os_free(b64); 181189251Ssam 182189251Ssam return TNC_RESULT_SUCCESS; 183189251Ssam} 184189251Ssam 185189251Ssam 186189251SsamTNC_Result TNC_TNCC_RequestHandshakeRetry( 187189251Ssam TNC_IMCID imcID, 188189251Ssam TNC_ConnectionID connectionID, 189189251Ssam TNC_RetryReason reason) 190189251Ssam{ 191189251Ssam wpa_printf(MSG_DEBUG, "TNC: TNC_TNCC_RequestHandshakeRetry"); 192189251Ssam 193189251Ssam if (imcID >= TNC_MAX_IMC_ID || tnc_imc[imcID] == NULL) 194189251Ssam return TNC_RESULT_INVALID_PARAMETER; 195189251Ssam 196189251Ssam /* 197189251Ssam * TODO: trigger a call to eapol_sm_request_reauth(). This would 198189251Ssam * require that the IMC continues to be loaded in memory afer 199189251Ssam * authentication.. 200189251Ssam */ 201189251Ssam 202189251Ssam return TNC_RESULT_SUCCESS; 203189251Ssam} 204189251Ssam 205189251Ssam 206189251SsamTNC_Result TNC_9048_LogMessage(TNC_IMCID imcID, TNC_UInt32 severity, 207189251Ssam const char *message) 208189251Ssam{ 209189251Ssam wpa_printf(MSG_DEBUG, "TNC: TNC_9048_LogMessage(imcID=%lu " 210189251Ssam "severity==%lu message='%s')", 211189251Ssam imcID, severity, message); 212189251Ssam return TNC_RESULT_SUCCESS; 213189251Ssam} 214189251Ssam 215189251Ssam 216189251SsamTNC_Result TNC_9048_UserMessage(TNC_IMCID imcID, TNC_ConnectionID connectionID, 217189251Ssam const char *message) 218189251Ssam{ 219189251Ssam wpa_printf(MSG_DEBUG, "TNC: TNC_9048_UserMessage(imcID=%lu " 220189251Ssam "connectionID==%lu message='%s')", 221189251Ssam imcID, connectionID, message); 222189251Ssam return TNC_RESULT_SUCCESS; 223189251Ssam} 224189251Ssam 225189251Ssam 226189251SsamTNC_Result TNC_TNCC_BindFunction( 227189251Ssam TNC_IMCID imcID, 228189251Ssam char *functionName, 229189251Ssam void **pOutfunctionPointer) 230189251Ssam{ 231189251Ssam wpa_printf(MSG_DEBUG, "TNC: TNC_TNCC_BindFunction(imcID=%lu, " 232189251Ssam "functionName='%s')", (unsigned long) imcID, functionName); 233189251Ssam 234189251Ssam if (imcID >= TNC_MAX_IMC_ID || tnc_imc[imcID] == NULL) 235189251Ssam return TNC_RESULT_INVALID_PARAMETER; 236189251Ssam 237189251Ssam if (pOutfunctionPointer == NULL) 238189251Ssam return TNC_RESULT_INVALID_PARAMETER; 239189251Ssam 240189251Ssam if (os_strcmp(functionName, "TNC_TNCC_ReportMessageTypes") == 0) 241189251Ssam *pOutfunctionPointer = TNC_TNCC_ReportMessageTypes; 242189251Ssam else if (os_strcmp(functionName, "TNC_TNCC_SendMessage") == 0) 243189251Ssam *pOutfunctionPointer = TNC_TNCC_SendMessage; 244189251Ssam else if (os_strcmp(functionName, "TNC_TNCC_RequestHandshakeRetry") == 245189251Ssam 0) 246189251Ssam *pOutfunctionPointer = TNC_TNCC_RequestHandshakeRetry; 247189251Ssam else if (os_strcmp(functionName, "TNC_9048_LogMessage") == 0) 248189251Ssam *pOutfunctionPointer = TNC_9048_LogMessage; 249189251Ssam else if (os_strcmp(functionName, "TNC_9048_UserMessage") == 0) 250189251Ssam *pOutfunctionPointer = TNC_9048_UserMessage; 251189251Ssam else 252189251Ssam *pOutfunctionPointer = NULL; 253189251Ssam 254189251Ssam return TNC_RESULT_SUCCESS; 255189251Ssam} 256189251Ssam 257189251Ssam 258189251Ssamstatic void * tncc_get_sym(void *handle, char *func) 259189251Ssam{ 260189251Ssam void *fptr; 261189251Ssam 262189251Ssam#ifdef CONFIG_NATIVE_WINDOWS 263189251Ssam#ifdef _WIN32_WCE 264189251Ssam fptr = GetProcAddressA(handle, func); 265189251Ssam#else /* _WIN32_WCE */ 266189251Ssam fptr = GetProcAddress(handle, func); 267189251Ssam#endif /* _WIN32_WCE */ 268189251Ssam#else /* CONFIG_NATIVE_WINDOWS */ 269189251Ssam fptr = dlsym(handle, func); 270189251Ssam#endif /* CONFIG_NATIVE_WINDOWS */ 271189251Ssam 272189251Ssam return fptr; 273189251Ssam} 274189251Ssam 275189251Ssam 276189251Ssamstatic int tncc_imc_resolve_funcs(struct tnc_if_imc *imc) 277189251Ssam{ 278189251Ssam void *handle = imc->dlhandle; 279189251Ssam 280189251Ssam /* Mandatory IMC functions */ 281189251Ssam imc->Initialize = tncc_get_sym(handle, "TNC_IMC_Initialize"); 282189251Ssam if (imc->Initialize == NULL) { 283189251Ssam wpa_printf(MSG_ERROR, "TNC: IMC does not export " 284189251Ssam "TNC_IMC_Initialize"); 285189251Ssam return -1; 286189251Ssam } 287189251Ssam 288189251Ssam imc->BeginHandshake = tncc_get_sym(handle, "TNC_IMC_BeginHandshake"); 289189251Ssam if (imc->BeginHandshake == NULL) { 290189251Ssam wpa_printf(MSG_ERROR, "TNC: IMC does not export " 291189251Ssam "TNC_IMC_BeginHandshake"); 292189251Ssam return -1; 293189251Ssam } 294189251Ssam 295189251Ssam imc->ProvideBindFunction = 296189251Ssam tncc_get_sym(handle, "TNC_IMC_ProvideBindFunction"); 297189251Ssam if (imc->ProvideBindFunction == NULL) { 298189251Ssam wpa_printf(MSG_ERROR, "TNC: IMC does not export " 299189251Ssam "TNC_IMC_ProvideBindFunction"); 300189251Ssam return -1; 301189251Ssam } 302189251Ssam 303189251Ssam /* Optional IMC functions */ 304189251Ssam imc->NotifyConnectionChange = 305189251Ssam tncc_get_sym(handle, "TNC_IMC_NotifyConnectionChange"); 306189251Ssam imc->ReceiveMessage = tncc_get_sym(handle, "TNC_IMC_ReceiveMessage"); 307189251Ssam imc->BatchEnding = tncc_get_sym(handle, "TNC_IMC_BatchEnding"); 308189251Ssam imc->Terminate = tncc_get_sym(handle, "TNC_IMC_Terminate"); 309189251Ssam 310189251Ssam return 0; 311189251Ssam} 312189251Ssam 313189251Ssam 314189251Ssamstatic int tncc_imc_initialize(struct tnc_if_imc *imc) 315189251Ssam{ 316189251Ssam TNC_Result res; 317189251Ssam TNC_Version imc_ver; 318189251Ssam 319189251Ssam wpa_printf(MSG_DEBUG, "TNC: Calling TNC_IMC_Initialize for IMC '%s'", 320189251Ssam imc->name); 321189251Ssam res = imc->Initialize(imc->imcID, TNC_IFIMC_VERSION_1, 322189251Ssam TNC_IFIMC_VERSION_1, &imc_ver); 323189251Ssam wpa_printf(MSG_DEBUG, "TNC: TNC_IMC_Initialize: res=%lu imc_ver=%lu", 324189251Ssam (unsigned long) res, (unsigned long) imc_ver); 325189251Ssam 326189251Ssam return res == TNC_RESULT_SUCCESS ? 0 : -1; 327189251Ssam} 328189251Ssam 329189251Ssam 330189251Ssamstatic int tncc_imc_terminate(struct tnc_if_imc *imc) 331189251Ssam{ 332189251Ssam TNC_Result res; 333189251Ssam 334189251Ssam if (imc->Terminate == NULL) 335189251Ssam return 0; 336189251Ssam 337189251Ssam wpa_printf(MSG_DEBUG, "TNC: Calling TNC_IMC_Terminate for IMC '%s'", 338189251Ssam imc->name); 339189251Ssam res = imc->Terminate(imc->imcID); 340189251Ssam wpa_printf(MSG_DEBUG, "TNC: TNC_IMC_Terminate: %lu", 341189251Ssam (unsigned long) res); 342189251Ssam 343189251Ssam return res == TNC_RESULT_SUCCESS ? 0 : -1; 344189251Ssam} 345189251Ssam 346189251Ssam 347189251Ssamstatic int tncc_imc_provide_bind_function(struct tnc_if_imc *imc) 348189251Ssam{ 349189251Ssam TNC_Result res; 350189251Ssam 351189251Ssam wpa_printf(MSG_DEBUG, "TNC: Calling TNC_IMC_ProvideBindFunction for " 352189251Ssam "IMC '%s'", imc->name); 353189251Ssam res = imc->ProvideBindFunction(imc->imcID, TNC_TNCC_BindFunction); 354189251Ssam wpa_printf(MSG_DEBUG, "TNC: TNC_IMC_ProvideBindFunction: res=%lu", 355189251Ssam (unsigned long) res); 356189251Ssam 357189251Ssam return res == TNC_RESULT_SUCCESS ? 0 : -1; 358189251Ssam} 359189251Ssam 360189251Ssam 361189251Ssamstatic int tncc_imc_notify_connection_change(struct tnc_if_imc *imc, 362189251Ssam TNC_ConnectionState state) 363189251Ssam{ 364189251Ssam TNC_Result res; 365189251Ssam 366189251Ssam if (imc->NotifyConnectionChange == NULL) 367189251Ssam return 0; 368189251Ssam 369189251Ssam wpa_printf(MSG_DEBUG, "TNC: Calling TNC_IMC_NotifyConnectionChange(%d)" 370189251Ssam " for IMC '%s'", (int) state, imc->name); 371189251Ssam res = imc->NotifyConnectionChange(imc->imcID, imc->connectionID, 372189251Ssam state); 373189251Ssam wpa_printf(MSG_DEBUG, "TNC: TNC_IMC_NotifyConnectionChange: %lu", 374189251Ssam (unsigned long) res); 375189251Ssam 376189251Ssam return res == TNC_RESULT_SUCCESS ? 0 : -1; 377189251Ssam} 378189251Ssam 379189251Ssam 380189251Ssamstatic int tncc_imc_begin_handshake(struct tnc_if_imc *imc) 381189251Ssam{ 382189251Ssam TNC_Result res; 383189251Ssam 384189251Ssam wpa_printf(MSG_DEBUG, "TNC: Calling TNC_IMC_BeginHandshake for IMC " 385189251Ssam "'%s'", imc->name); 386189251Ssam res = imc->BeginHandshake(imc->imcID, imc->connectionID); 387189251Ssam wpa_printf(MSG_DEBUG, "TNC: TNC_IMC_BeginHandshake: %lu", 388189251Ssam (unsigned long) res); 389189251Ssam 390189251Ssam return res == TNC_RESULT_SUCCESS ? 0 : -1; 391189251Ssam} 392189251Ssam 393189251Ssam 394189251Ssamstatic int tncc_load_imc(struct tnc_if_imc *imc) 395189251Ssam{ 396189251Ssam if (imc->path == NULL) { 397189251Ssam wpa_printf(MSG_DEBUG, "TNC: No IMC configured"); 398189251Ssam return -1; 399189251Ssam } 400189251Ssam 401189251Ssam wpa_printf(MSG_DEBUG, "TNC: Opening IMC: %s (%s)", 402189251Ssam imc->name, imc->path); 403189251Ssam#ifdef CONFIG_NATIVE_WINDOWS 404189251Ssam#ifdef UNICODE 405189251Ssam { 406189251Ssam TCHAR *lib = wpa_strdup_tchar(imc->path); 407189251Ssam if (lib == NULL) 408189251Ssam return -1; 409189251Ssam imc->dlhandle = LoadLibrary(lib); 410189251Ssam os_free(lib); 411189251Ssam } 412189251Ssam#else /* UNICODE */ 413189251Ssam imc->dlhandle = LoadLibrary(imc->path); 414189251Ssam#endif /* UNICODE */ 415189251Ssam if (imc->dlhandle == NULL) { 416189251Ssam wpa_printf(MSG_ERROR, "TNC: Failed to open IMC '%s' (%s): %d", 417189251Ssam imc->name, imc->path, (int) GetLastError()); 418189251Ssam return -1; 419189251Ssam } 420189251Ssam#else /* CONFIG_NATIVE_WINDOWS */ 421189251Ssam imc->dlhandle = dlopen(imc->path, RTLD_LAZY); 422189251Ssam if (imc->dlhandle == NULL) { 423189251Ssam wpa_printf(MSG_ERROR, "TNC: Failed to open IMC '%s' (%s): %s", 424189251Ssam imc->name, imc->path, dlerror()); 425189251Ssam return -1; 426189251Ssam } 427189251Ssam#endif /* CONFIG_NATIVE_WINDOWS */ 428189251Ssam 429189251Ssam if (tncc_imc_resolve_funcs(imc) < 0) { 430189251Ssam wpa_printf(MSG_ERROR, "TNC: Failed to resolve IMC functions"); 431189251Ssam return -1; 432189251Ssam } 433189251Ssam 434189251Ssam if (tncc_imc_initialize(imc) < 0 || 435189251Ssam tncc_imc_provide_bind_function(imc) < 0) { 436189251Ssam wpa_printf(MSG_ERROR, "TNC: Failed to initialize IMC"); 437189251Ssam return -1; 438189251Ssam } 439189251Ssam 440189251Ssam return 0; 441189251Ssam} 442189251Ssam 443189251Ssam 444189251Ssamstatic void tncc_unload_imc(struct tnc_if_imc *imc) 445189251Ssam{ 446189251Ssam tncc_imc_terminate(imc); 447189251Ssam tnc_imc[imc->imcID] = NULL; 448189251Ssam 449189251Ssam if (imc->dlhandle) { 450189251Ssam#ifdef CONFIG_NATIVE_WINDOWS 451189251Ssam FreeLibrary(imc->dlhandle); 452189251Ssam#else /* CONFIG_NATIVE_WINDOWS */ 453189251Ssam dlclose(imc->dlhandle); 454189251Ssam#endif /* CONFIG_NATIVE_WINDOWS */ 455189251Ssam } 456189251Ssam os_free(imc->name); 457189251Ssam os_free(imc->path); 458189251Ssam os_free(imc->supported_types); 459189251Ssam os_free(imc->imc_send); 460189251Ssam} 461189251Ssam 462189251Ssam 463189251Ssamstatic int tncc_supported_type(struct tnc_if_imc *imc, unsigned int type) 464189251Ssam{ 465189251Ssam size_t i; 466189251Ssam unsigned int vendor, subtype; 467189251Ssam 468189251Ssam if (imc == NULL || imc->supported_types == NULL) 469189251Ssam return 0; 470189251Ssam 471189251Ssam vendor = type >> 8; 472189251Ssam subtype = type & 0xff; 473189251Ssam 474189251Ssam for (i = 0; i < imc->num_supported_types; i++) { 475189251Ssam unsigned int svendor, ssubtype; 476189251Ssam svendor = imc->supported_types[i] >> 8; 477189251Ssam ssubtype = imc->supported_types[i] & 0xff; 478189251Ssam if ((vendor == svendor || svendor == TNC_VENDORID_ANY) && 479189251Ssam (subtype == ssubtype || ssubtype == TNC_SUBTYPE_ANY)) 480189251Ssam return 1; 481189251Ssam } 482189251Ssam 483189251Ssam return 0; 484189251Ssam} 485189251Ssam 486189251Ssam 487189251Ssamstatic void tncc_send_to_imcs(struct tncc_data *tncc, unsigned int type, 488189251Ssam const u8 *msg, size_t len) 489189251Ssam{ 490189251Ssam struct tnc_if_imc *imc; 491189251Ssam TNC_Result res; 492189251Ssam 493189251Ssam wpa_hexdump_ascii(MSG_MSGDUMP, "TNC: Message to IMC(s)", msg, len); 494189251Ssam 495189251Ssam for (imc = tncc->imc; imc; imc = imc->next) { 496189251Ssam if (imc->ReceiveMessage == NULL || 497189251Ssam !tncc_supported_type(imc, type)) 498189251Ssam continue; 499189251Ssam 500189251Ssam wpa_printf(MSG_DEBUG, "TNC: Call ReceiveMessage for IMC '%s'", 501189251Ssam imc->name); 502189251Ssam res = imc->ReceiveMessage(imc->imcID, imc->connectionID, 503189251Ssam (TNC_BufferReference) msg, len, 504189251Ssam type); 505189251Ssam wpa_printf(MSG_DEBUG, "TNC: ReceiveMessage: %lu", 506189251Ssam (unsigned long) res); 507189251Ssam } 508189251Ssam} 509189251Ssam 510189251Ssam 511189251Ssamvoid tncc_init_connection(struct tncc_data *tncc) 512189251Ssam{ 513189251Ssam struct tnc_if_imc *imc; 514189251Ssam 515189251Ssam for (imc = tncc->imc; imc; imc = imc->next) { 516189251Ssam tncc_imc_notify_connection_change( 517189251Ssam imc, TNC_CONNECTION_STATE_CREATE); 518189251Ssam tncc_imc_notify_connection_change( 519189251Ssam imc, TNC_CONNECTION_STATE_HANDSHAKE); 520189251Ssam 521189251Ssam os_free(imc->imc_send); 522189251Ssam imc->imc_send = NULL; 523189251Ssam imc->imc_send_len = 0; 524189251Ssam 525189251Ssam tncc_imc_begin_handshake(imc); 526189251Ssam } 527189251Ssam} 528189251Ssam 529189251Ssam 530189251Ssamsize_t tncc_total_send_len(struct tncc_data *tncc) 531189251Ssam{ 532189251Ssam struct tnc_if_imc *imc; 533189251Ssam 534189251Ssam size_t len = 0; 535189251Ssam for (imc = tncc->imc; imc; imc = imc->next) 536189251Ssam len += imc->imc_send_len; 537189251Ssam return len; 538189251Ssam} 539189251Ssam 540189251Ssam 541189251Ssamu8 * tncc_copy_send_buf(struct tncc_data *tncc, u8 *pos) 542189251Ssam{ 543189251Ssam struct tnc_if_imc *imc; 544189251Ssam 545189251Ssam for (imc = tncc->imc; imc; imc = imc->next) { 546189251Ssam if (imc->imc_send == NULL) 547189251Ssam continue; 548189251Ssam 549189251Ssam os_memcpy(pos, imc->imc_send, imc->imc_send_len); 550189251Ssam pos += imc->imc_send_len; 551189251Ssam os_free(imc->imc_send); 552189251Ssam imc->imc_send = NULL; 553189251Ssam imc->imc_send_len = 0; 554189251Ssam } 555189251Ssam 556189251Ssam return pos; 557189251Ssam} 558189251Ssam 559189251Ssam 560189251Ssamchar * tncc_if_tnccs_start(struct tncc_data *tncc) 561189251Ssam{ 562189251Ssam char *buf = os_malloc(1000); 563189251Ssam if (buf == NULL) 564189251Ssam return NULL; 565189251Ssam tncc->last_batchid++; 566189251Ssam os_snprintf(buf, 1000, IF_TNCCS_START, tncc->last_batchid); 567189251Ssam return buf; 568189251Ssam} 569189251Ssam 570189251Ssam 571189251Ssamchar * tncc_if_tnccs_end(void) 572189251Ssam{ 573189251Ssam char *buf = os_malloc(100); 574189251Ssam if (buf == NULL) 575189251Ssam return NULL; 576189251Ssam os_snprintf(buf, 100, IF_TNCCS_END); 577189251Ssam return buf; 578189251Ssam} 579189251Ssam 580189251Ssam 581189251Ssamstatic void tncc_notify_recommendation(struct tncc_data *tncc, 582189251Ssam enum tncc_process_res res) 583189251Ssam{ 584189251Ssam TNC_ConnectionState state; 585189251Ssam struct tnc_if_imc *imc; 586189251Ssam 587189251Ssam switch (res) { 588189251Ssam case TNCCS_RECOMMENDATION_ALLOW: 589189251Ssam state = TNC_CONNECTION_STATE_ACCESS_ALLOWED; 590189251Ssam break; 591189251Ssam case TNCCS_RECOMMENDATION_NONE: 592189251Ssam state = TNC_CONNECTION_STATE_ACCESS_NONE; 593189251Ssam break; 594189251Ssam case TNCCS_RECOMMENDATION_ISOLATE: 595189251Ssam state = TNC_CONNECTION_STATE_ACCESS_ISOLATED; 596189251Ssam break; 597189251Ssam default: 598189251Ssam state = TNC_CONNECTION_STATE_ACCESS_NONE; 599189251Ssam break; 600189251Ssam } 601189251Ssam 602189251Ssam for (imc = tncc->imc; imc; imc = imc->next) 603189251Ssam tncc_imc_notify_connection_change(imc, state); 604189251Ssam} 605189251Ssam 606189251Ssam 607189251Ssamstatic int tncc_get_type(char *start, unsigned int *type) 608189251Ssam{ 609189251Ssam char *pos = os_strstr(start, "<Type>"); 610189251Ssam if (pos == NULL) 611189251Ssam return -1; 612189251Ssam pos += 6; 613189251Ssam *type = strtoul(pos, NULL, 16); 614189251Ssam return 0; 615189251Ssam} 616189251Ssam 617189251Ssam 618189251Ssamstatic unsigned char * tncc_get_base64(char *start, size_t *decoded_len) 619189251Ssam{ 620189251Ssam char *pos, *pos2; 621189251Ssam unsigned char *decoded; 622189251Ssam 623189251Ssam pos = os_strstr(start, "<Base64>"); 624189251Ssam if (pos == NULL) 625189251Ssam return NULL; 626189251Ssam 627189251Ssam pos += 8; 628189251Ssam pos2 = os_strstr(pos, "</Base64>"); 629189251Ssam if (pos2 == NULL) 630189251Ssam return NULL; 631189251Ssam *pos2 = '\0'; 632189251Ssam 633189251Ssam decoded = base64_decode((unsigned char *) pos, os_strlen(pos), 634189251Ssam decoded_len); 635189251Ssam *pos2 = '<'; 636189251Ssam if (decoded == NULL) { 637189251Ssam wpa_printf(MSG_DEBUG, "TNC: Failed to decode Base64 data"); 638189251Ssam } 639189251Ssam 640189251Ssam return decoded; 641189251Ssam} 642189251Ssam 643189251Ssam 644189251Ssamstatic enum tncc_process_res tncc_get_recommendation(char *start) 645189251Ssam{ 646189251Ssam char *pos, *pos2, saved; 647189251Ssam int recom; 648189251Ssam 649189251Ssam pos = os_strstr(start, "<TNCCS-Recommendation "); 650189251Ssam if (pos == NULL) 651189251Ssam return TNCCS_RECOMMENDATION_ERROR; 652189251Ssam 653189251Ssam pos += 21; 654189251Ssam pos = os_strstr(pos, " type="); 655189251Ssam if (pos == NULL) 656189251Ssam return TNCCS_RECOMMENDATION_ERROR; 657189251Ssam pos += 6; 658189251Ssam 659189251Ssam if (*pos == '"') 660189251Ssam pos++; 661189251Ssam 662189251Ssam pos2 = pos; 663189251Ssam while (*pos2 != '\0' && *pos2 != '"' && *pos2 != '>') 664189251Ssam pos2++; 665189251Ssam 666189251Ssam if (*pos2 == '\0') 667189251Ssam return TNCCS_RECOMMENDATION_ERROR; 668189251Ssam 669189251Ssam saved = *pos2; 670189251Ssam *pos2 = '\0'; 671189251Ssam wpa_printf(MSG_DEBUG, "TNC: TNCCS-Recommendation: '%s'", pos); 672189251Ssam 673189251Ssam recom = TNCCS_RECOMMENDATION_ERROR; 674189251Ssam if (os_strcmp(pos, "allow") == 0) 675189251Ssam recom = TNCCS_RECOMMENDATION_ALLOW; 676189251Ssam else if (os_strcmp(pos, "none") == 0) 677189251Ssam recom = TNCCS_RECOMMENDATION_NONE; 678189251Ssam else if (os_strcmp(pos, "isolate") == 0) 679189251Ssam recom = TNCCS_RECOMMENDATION_ISOLATE; 680189251Ssam 681189251Ssam *pos2 = saved; 682189251Ssam 683189251Ssam return recom; 684189251Ssam} 685189251Ssam 686189251Ssam 687189251Ssamenum tncc_process_res tncc_process_if_tnccs(struct tncc_data *tncc, 688189251Ssam const u8 *msg, size_t len) 689189251Ssam{ 690189251Ssam char *buf, *start, *end, *pos, *pos2, *payload; 691189251Ssam unsigned int batch_id; 692189251Ssam unsigned char *decoded; 693189251Ssam size_t decoded_len; 694189251Ssam enum tncc_process_res res = TNCCS_PROCESS_OK_NO_RECOMMENDATION; 695189251Ssam int recommendation_msg = 0; 696189251Ssam 697281806Srpaulo buf = dup_binstr(msg, len); 698189251Ssam if (buf == NULL) 699189251Ssam return TNCCS_PROCESS_ERROR; 700189251Ssam 701189251Ssam start = os_strstr(buf, "<TNCCS-Batch "); 702189251Ssam end = os_strstr(buf, "</TNCCS-Batch>"); 703189251Ssam if (start == NULL || end == NULL || start > end) { 704189251Ssam os_free(buf); 705189251Ssam return TNCCS_PROCESS_ERROR; 706189251Ssam } 707189251Ssam 708189251Ssam start += 13; 709189251Ssam while (*start == ' ') 710189251Ssam start++; 711189251Ssam *end = '\0'; 712189251Ssam 713189251Ssam pos = os_strstr(start, "BatchId="); 714189251Ssam if (pos == NULL) { 715189251Ssam os_free(buf); 716189251Ssam return TNCCS_PROCESS_ERROR; 717189251Ssam } 718189251Ssam 719189251Ssam pos += 8; 720189251Ssam if (*pos == '"') 721189251Ssam pos++; 722189251Ssam batch_id = atoi(pos); 723189251Ssam wpa_printf(MSG_DEBUG, "TNC: Received IF-TNCCS BatchId=%u", 724189251Ssam batch_id); 725189251Ssam if (batch_id != tncc->last_batchid + 1) { 726189251Ssam wpa_printf(MSG_DEBUG, "TNC: Unexpected IF-TNCCS BatchId " 727189251Ssam "%u (expected %u)", 728189251Ssam batch_id, tncc->last_batchid + 1); 729189251Ssam os_free(buf); 730189251Ssam return TNCCS_PROCESS_ERROR; 731189251Ssam } 732189251Ssam tncc->last_batchid = batch_id; 733189251Ssam 734189251Ssam while (*pos != '\0' && *pos != '>') 735189251Ssam pos++; 736189251Ssam if (*pos == '\0') { 737189251Ssam os_free(buf); 738189251Ssam return TNCCS_PROCESS_ERROR; 739189251Ssam } 740189251Ssam pos++; 741189251Ssam payload = start; 742189251Ssam 743189251Ssam /* 744189251Ssam * <IMC-IMV-Message> 745189251Ssam * <Type>01234567</Type> 746189251Ssam * <Base64>foo==</Base64> 747189251Ssam * </IMC-IMV-Message> 748189251Ssam */ 749189251Ssam 750189251Ssam while (*start) { 751189251Ssam char *endpos; 752189251Ssam unsigned int type; 753189251Ssam 754189251Ssam pos = os_strstr(start, "<IMC-IMV-Message>"); 755189251Ssam if (pos == NULL) 756189251Ssam break; 757189251Ssam start = pos + 17; 758189251Ssam end = os_strstr(start, "</IMC-IMV-Message>"); 759189251Ssam if (end == NULL) 760189251Ssam break; 761189251Ssam *end = '\0'; 762189251Ssam endpos = end; 763189251Ssam end += 18; 764189251Ssam 765189251Ssam if (tncc_get_type(start, &type) < 0) { 766189251Ssam *endpos = '<'; 767189251Ssam start = end; 768189251Ssam continue; 769189251Ssam } 770189251Ssam wpa_printf(MSG_DEBUG, "TNC: IMC-IMV-Message Type 0x%x", type); 771189251Ssam 772189251Ssam decoded = tncc_get_base64(start, &decoded_len); 773189251Ssam if (decoded == NULL) { 774189251Ssam *endpos = '<'; 775189251Ssam start = end; 776189251Ssam continue; 777189251Ssam } 778189251Ssam 779189251Ssam tncc_send_to_imcs(tncc, type, decoded, decoded_len); 780189251Ssam 781189251Ssam os_free(decoded); 782189251Ssam 783189251Ssam start = end; 784189251Ssam } 785189251Ssam 786189251Ssam /* 787189251Ssam * <TNCC-TNCS-Message> 788189251Ssam * <Type>01234567</Type> 789189251Ssam * <XML><TNCCS-Foo type="foo"></TNCCS-Foo></XML> 790189251Ssam * <Base64>foo==</Base64> 791189251Ssam * </TNCC-TNCS-Message> 792189251Ssam */ 793189251Ssam 794189251Ssam start = payload; 795189251Ssam while (*start) { 796189251Ssam unsigned int type; 797189251Ssam char *xml, *xmlend, *endpos; 798189251Ssam 799189251Ssam pos = os_strstr(start, "<TNCC-TNCS-Message>"); 800189251Ssam if (pos == NULL) 801189251Ssam break; 802189251Ssam start = pos + 19; 803189251Ssam end = os_strstr(start, "</TNCC-TNCS-Message>"); 804189251Ssam if (end == NULL) 805189251Ssam break; 806189251Ssam *end = '\0'; 807189251Ssam endpos = end; 808189251Ssam end += 20; 809189251Ssam 810189251Ssam if (tncc_get_type(start, &type) < 0) { 811189251Ssam *endpos = '<'; 812189251Ssam start = end; 813189251Ssam continue; 814189251Ssam } 815189251Ssam wpa_printf(MSG_DEBUG, "TNC: TNCC-TNCS-Message Type 0x%x", 816189251Ssam type); 817189251Ssam 818189251Ssam /* Base64 OR XML */ 819189251Ssam decoded = NULL; 820189251Ssam xml = NULL; 821189251Ssam xmlend = NULL; 822189251Ssam pos = os_strstr(start, "<XML>"); 823189251Ssam if (pos) { 824189251Ssam pos += 5; 825189251Ssam pos2 = os_strstr(pos, "</XML>"); 826189251Ssam if (pos2 == NULL) { 827189251Ssam *endpos = '<'; 828189251Ssam start = end; 829189251Ssam continue; 830189251Ssam } 831189251Ssam xmlend = pos2; 832189251Ssam xml = pos; 833189251Ssam } else { 834189251Ssam decoded = tncc_get_base64(start, &decoded_len); 835189251Ssam if (decoded == NULL) { 836189251Ssam *endpos = '<'; 837189251Ssam start = end; 838189251Ssam continue; 839189251Ssam } 840189251Ssam } 841189251Ssam 842189251Ssam if (decoded) { 843189251Ssam wpa_hexdump_ascii(MSG_MSGDUMP, 844189251Ssam "TNC: TNCC-TNCS-Message Base64", 845189251Ssam decoded, decoded_len); 846189251Ssam os_free(decoded); 847189251Ssam } 848189251Ssam 849189251Ssam if (xml) { 850189251Ssam wpa_hexdump_ascii(MSG_MSGDUMP, 851189251Ssam "TNC: TNCC-TNCS-Message XML", 852189251Ssam (unsigned char *) xml, 853189251Ssam xmlend - xml); 854189251Ssam } 855189251Ssam 856189251Ssam if (type == TNC_TNCCS_RECOMMENDATION && xml) { 857189251Ssam /* 858189251Ssam * <TNCCS-Recommendation type="allow"> 859189251Ssam * </TNCCS-Recommendation> 860189251Ssam */ 861189251Ssam *xmlend = '\0'; 862189251Ssam res = tncc_get_recommendation(xml); 863189251Ssam *xmlend = '<'; 864189251Ssam recommendation_msg = 1; 865189251Ssam } 866189251Ssam 867189251Ssam start = end; 868189251Ssam } 869189251Ssam 870189251Ssam os_free(buf); 871189251Ssam 872189251Ssam if (recommendation_msg) 873189251Ssam tncc_notify_recommendation(tncc, res); 874189251Ssam 875189251Ssam return res; 876189251Ssam} 877189251Ssam 878189251Ssam 879189251Ssam#ifdef CONFIG_NATIVE_WINDOWS 880189251Ssamstatic int tncc_read_config_reg(struct tncc_data *tncc, HKEY hive) 881189251Ssam{ 882189251Ssam HKEY hk, hk2; 883189251Ssam LONG ret; 884189251Ssam DWORD i; 885189251Ssam struct tnc_if_imc *imc, *last; 886189251Ssam int j; 887189251Ssam 888189251Ssam last = tncc->imc; 889189251Ssam while (last && last->next) 890189251Ssam last = last->next; 891189251Ssam 892189251Ssam ret = RegOpenKeyEx(hive, TNC_WINREG_PATH, 0, KEY_ENUMERATE_SUB_KEYS, 893189251Ssam &hk); 894189251Ssam if (ret != ERROR_SUCCESS) 895189251Ssam return 0; 896189251Ssam 897189251Ssam for (i = 0; ; i++) { 898189251Ssam TCHAR name[255], *val; 899189251Ssam DWORD namelen, buflen; 900189251Ssam 901189251Ssam namelen = 255; 902189251Ssam ret = RegEnumKeyEx(hk, i, name, &namelen, NULL, NULL, NULL, 903189251Ssam NULL); 904189251Ssam 905189251Ssam if (ret == ERROR_NO_MORE_ITEMS) 906189251Ssam break; 907189251Ssam 908189251Ssam if (ret != ERROR_SUCCESS) { 909189251Ssam wpa_printf(MSG_DEBUG, "TNC: RegEnumKeyEx failed: 0x%x", 910189251Ssam (unsigned int) ret); 911189251Ssam break; 912189251Ssam } 913189251Ssam 914189251Ssam if (namelen >= 255) 915189251Ssam namelen = 255 - 1; 916189251Ssam name[namelen] = '\0'; 917189251Ssam 918189251Ssam wpa_printf(MSG_DEBUG, "TNC: IMC '" TSTR "'", name); 919189251Ssam 920189251Ssam ret = RegOpenKeyEx(hk, name, 0, KEY_QUERY_VALUE, &hk2); 921189251Ssam if (ret != ERROR_SUCCESS) { 922189251Ssam wpa_printf(MSG_DEBUG, "Could not open IMC key '" TSTR 923189251Ssam "'", name); 924189251Ssam continue; 925189251Ssam } 926189251Ssam 927189251Ssam ret = RegQueryValueEx(hk2, TEXT("Path"), NULL, NULL, NULL, 928189251Ssam &buflen); 929189251Ssam if (ret != ERROR_SUCCESS) { 930189251Ssam wpa_printf(MSG_DEBUG, "TNC: Could not read Path from " 931189251Ssam "IMC key '" TSTR "'", name); 932189251Ssam RegCloseKey(hk2); 933189251Ssam continue; 934189251Ssam } 935189251Ssam 936189251Ssam val = os_malloc(buflen); 937189251Ssam if (val == NULL) { 938189251Ssam RegCloseKey(hk2); 939189251Ssam continue; 940189251Ssam } 941189251Ssam 942189251Ssam ret = RegQueryValueEx(hk2, TEXT("Path"), NULL, NULL, 943189251Ssam (LPBYTE) val, &buflen); 944189251Ssam if (ret != ERROR_SUCCESS) { 945189251Ssam os_free(val); 946189251Ssam RegCloseKey(hk2); 947189251Ssam continue; 948189251Ssam } 949189251Ssam 950189251Ssam RegCloseKey(hk2); 951189251Ssam 952189251Ssam wpa_unicode2ascii_inplace(val); 953189251Ssam wpa_printf(MSG_DEBUG, "TNC: IMC Path '%s'", (char *) val); 954189251Ssam 955189251Ssam for (j = 0; j < TNC_MAX_IMC_ID; j++) { 956189251Ssam if (tnc_imc[j] == NULL) 957189251Ssam break; 958189251Ssam } 959189251Ssam if (j >= TNC_MAX_IMC_ID) { 960189251Ssam wpa_printf(MSG_DEBUG, "TNC: Too many IMCs"); 961189251Ssam os_free(val); 962189251Ssam continue; 963189251Ssam } 964189251Ssam 965189251Ssam imc = os_zalloc(sizeof(*imc)); 966189251Ssam if (imc == NULL) { 967189251Ssam os_free(val); 968189251Ssam break; 969189251Ssam } 970189251Ssam 971189251Ssam imc->imcID = j; 972189251Ssam 973189251Ssam wpa_unicode2ascii_inplace(name); 974189251Ssam imc->name = os_strdup((char *) name); 975189251Ssam imc->path = os_strdup((char *) val); 976189251Ssam 977189251Ssam os_free(val); 978189251Ssam 979189251Ssam if (last == NULL) 980189251Ssam tncc->imc = imc; 981189251Ssam else 982189251Ssam last->next = imc; 983189251Ssam last = imc; 984189251Ssam 985189251Ssam tnc_imc[imc->imcID] = imc; 986189251Ssam } 987189251Ssam 988189251Ssam RegCloseKey(hk); 989189251Ssam 990189251Ssam return 0; 991189251Ssam} 992189251Ssam 993189251Ssam 994189251Ssamstatic int tncc_read_config(struct tncc_data *tncc) 995189251Ssam{ 996189251Ssam if (tncc_read_config_reg(tncc, HKEY_LOCAL_MACHINE) < 0 || 997189251Ssam tncc_read_config_reg(tncc, HKEY_CURRENT_USER) < 0) 998189251Ssam return -1; 999189251Ssam return 0; 1000189251Ssam} 1001189251Ssam 1002189251Ssam#else /* CONFIG_NATIVE_WINDOWS */ 1003189251Ssam 1004189251Ssamstatic struct tnc_if_imc * tncc_parse_imc(char *start, char *end, int *error) 1005189251Ssam{ 1006189251Ssam struct tnc_if_imc *imc; 1007189251Ssam char *pos, *pos2; 1008189251Ssam int i; 1009189251Ssam 1010189251Ssam for (i = 0; i < TNC_MAX_IMC_ID; i++) { 1011189251Ssam if (tnc_imc[i] == NULL) 1012189251Ssam break; 1013189251Ssam } 1014189251Ssam if (i >= TNC_MAX_IMC_ID) { 1015189251Ssam wpa_printf(MSG_DEBUG, "TNC: Too many IMCs"); 1016189251Ssam return NULL; 1017189251Ssam } 1018189251Ssam 1019189251Ssam imc = os_zalloc(sizeof(*imc)); 1020189251Ssam if (imc == NULL) { 1021189251Ssam *error = 1; 1022189251Ssam return NULL; 1023189251Ssam } 1024189251Ssam 1025189251Ssam imc->imcID = i; 1026189251Ssam 1027189251Ssam pos = start; 1028189251Ssam wpa_printf(MSG_DEBUG, "TNC: Configured IMC: %s", pos); 1029189251Ssam if (pos + 1 >= end || *pos != '"') { 1030189251Ssam wpa_printf(MSG_ERROR, "TNC: Ignoring invalid IMC line '%s' " 1031189251Ssam "(no starting quotation mark)", start); 1032189251Ssam os_free(imc); 1033189251Ssam return NULL; 1034189251Ssam } 1035189251Ssam 1036189251Ssam pos++; 1037189251Ssam pos2 = pos; 1038189251Ssam while (pos2 < end && *pos2 != '"') 1039189251Ssam pos2++; 1040189251Ssam if (pos2 >= end) { 1041189251Ssam wpa_printf(MSG_ERROR, "TNC: Ignoring invalid IMC line '%s' " 1042189251Ssam "(no ending quotation mark)", start); 1043189251Ssam os_free(imc); 1044189251Ssam return NULL; 1045189251Ssam } 1046189251Ssam *pos2 = '\0'; 1047189251Ssam wpa_printf(MSG_DEBUG, "TNC: Name: '%s'", pos); 1048189251Ssam imc->name = os_strdup(pos); 1049189251Ssam 1050189251Ssam pos = pos2 + 1; 1051189251Ssam if (pos >= end || *pos != ' ') { 1052189251Ssam wpa_printf(MSG_ERROR, "TNC: Ignoring invalid IMC line '%s' " 1053189251Ssam "(no space after name)", start); 1054209158Srpaulo os_free(imc->name); 1055189251Ssam os_free(imc); 1056189251Ssam return NULL; 1057189251Ssam } 1058189251Ssam 1059189251Ssam pos++; 1060189251Ssam wpa_printf(MSG_DEBUG, "TNC: IMC file: '%s'", pos); 1061189251Ssam imc->path = os_strdup(pos); 1062189251Ssam tnc_imc[imc->imcID] = imc; 1063189251Ssam 1064189251Ssam return imc; 1065189251Ssam} 1066189251Ssam 1067189251Ssam 1068189251Ssamstatic int tncc_read_config(struct tncc_data *tncc) 1069189251Ssam{ 1070189251Ssam char *config, *end, *pos, *line_end; 1071189251Ssam size_t config_len; 1072189251Ssam struct tnc_if_imc *imc, *last; 1073189251Ssam 1074189251Ssam last = NULL; 1075189251Ssam 1076189251Ssam config = os_readfile(TNC_CONFIG_FILE, &config_len); 1077189251Ssam if (config == NULL) { 1078189251Ssam wpa_printf(MSG_ERROR, "TNC: Could not open TNC configuration " 1079189251Ssam "file '%s'", TNC_CONFIG_FILE); 1080189251Ssam return -1; 1081189251Ssam } 1082189251Ssam 1083189251Ssam end = config + config_len; 1084189251Ssam for (pos = config; pos < end; pos = line_end + 1) { 1085189251Ssam line_end = pos; 1086189251Ssam while (*line_end != '\n' && *line_end != '\r' && 1087189251Ssam line_end < end) 1088189251Ssam line_end++; 1089189251Ssam *line_end = '\0'; 1090189251Ssam 1091189251Ssam if (os_strncmp(pos, "IMC ", 4) == 0) { 1092189251Ssam int error = 0; 1093189251Ssam 1094189251Ssam imc = tncc_parse_imc(pos + 4, line_end, &error); 1095281806Srpaulo if (error) { 1096281806Srpaulo os_free(config); 1097189251Ssam return -1; 1098281806Srpaulo } 1099189251Ssam if (imc) { 1100189251Ssam if (last == NULL) 1101189251Ssam tncc->imc = imc; 1102189251Ssam else 1103189251Ssam last->next = imc; 1104189251Ssam last = imc; 1105189251Ssam } 1106189251Ssam } 1107189251Ssam } 1108189251Ssam 1109189251Ssam os_free(config); 1110189251Ssam 1111189251Ssam return 0; 1112189251Ssam} 1113189251Ssam 1114189251Ssam#endif /* CONFIG_NATIVE_WINDOWS */ 1115189251Ssam 1116189251Ssam 1117189251Ssamstruct tncc_data * tncc_init(void) 1118189251Ssam{ 1119189251Ssam struct tncc_data *tncc; 1120189251Ssam struct tnc_if_imc *imc; 1121189251Ssam 1122189251Ssam tncc = os_zalloc(sizeof(*tncc)); 1123189251Ssam if (tncc == NULL) 1124189251Ssam return NULL; 1125189251Ssam 1126189251Ssam /* TODO: 1127189251Ssam * move loading and Initialize() to a location that is not 1128189251Ssam * re-initialized for every EAP-TNC session (?) 1129189251Ssam */ 1130189251Ssam 1131189251Ssam if (tncc_read_config(tncc) < 0) { 1132189251Ssam wpa_printf(MSG_ERROR, "TNC: Failed to read TNC configuration"); 1133189251Ssam goto failed; 1134189251Ssam } 1135189251Ssam 1136189251Ssam for (imc = tncc->imc; imc; imc = imc->next) { 1137189251Ssam if (tncc_load_imc(imc)) { 1138189251Ssam wpa_printf(MSG_ERROR, "TNC: Failed to load IMC '%s'", 1139189251Ssam imc->name); 1140189251Ssam goto failed; 1141189251Ssam } 1142189251Ssam } 1143189251Ssam 1144189251Ssam return tncc; 1145189251Ssam 1146189251Ssamfailed: 1147189251Ssam tncc_deinit(tncc); 1148189251Ssam return NULL; 1149189251Ssam} 1150189251Ssam 1151189251Ssam 1152189251Ssamvoid tncc_deinit(struct tncc_data *tncc) 1153189251Ssam{ 1154189251Ssam struct tnc_if_imc *imc, *prev; 1155189251Ssam 1156189251Ssam imc = tncc->imc; 1157189251Ssam while (imc) { 1158189251Ssam tncc_unload_imc(imc); 1159189251Ssam 1160189251Ssam prev = imc; 1161189251Ssam imc = imc->next; 1162189251Ssam os_free(prev); 1163189251Ssam } 1164189251Ssam 1165189251Ssam os_free(tncc); 1166189251Ssam} 1167189251Ssam 1168189251Ssam 1169189251Ssamstatic struct wpabuf * tncc_build_soh(int ver) 1170189251Ssam{ 1171189251Ssam struct wpabuf *buf; 1172189251Ssam u8 *tlv_len, *tlv_len2, *outer_len, *inner_len, *ssoh_len, *end; 1173189251Ssam u8 correlation_id[24]; 1174189251Ssam /* TODO: get correct name */ 1175189251Ssam char *machinename = "wpa_supplicant@w1.fi"; 1176189251Ssam 1177189251Ssam if (os_get_random(correlation_id, sizeof(correlation_id))) 1178189251Ssam return NULL; 1179189251Ssam wpa_hexdump(MSG_DEBUG, "TNC: SoH Correlation ID", 1180189251Ssam correlation_id, sizeof(correlation_id)); 1181189251Ssam 1182189251Ssam buf = wpabuf_alloc(200); 1183189251Ssam if (buf == NULL) 1184189251Ssam return NULL; 1185189251Ssam 1186189251Ssam /* Vendor-Specific TLV (Microsoft) - SoH */ 1187189251Ssam wpabuf_put_be16(buf, EAP_TLV_VENDOR_SPECIFIC_TLV); /* TLV Type */ 1188189251Ssam tlv_len = wpabuf_put(buf, 2); /* Length */ 1189189251Ssam wpabuf_put_be32(buf, EAP_VENDOR_MICROSOFT); /* Vendor_Id */ 1190189251Ssam wpabuf_put_be16(buf, 0x01); /* TLV Type - SoH TLV */ 1191189251Ssam tlv_len2 = wpabuf_put(buf, 2); /* Length */ 1192189251Ssam 1193189251Ssam /* SoH Header */ 1194189251Ssam wpabuf_put_be16(buf, EAP_TLV_VENDOR_SPECIFIC_TLV); /* Outer Type */ 1195189251Ssam outer_len = wpabuf_put(buf, 2); 1196189251Ssam wpabuf_put_be32(buf, EAP_VENDOR_MICROSOFT); /* IANA SMI Code */ 1197189251Ssam wpabuf_put_be16(buf, ver); /* Inner Type */ 1198189251Ssam inner_len = wpabuf_put(buf, 2); 1199189251Ssam 1200189251Ssam if (ver == 2) { 1201189251Ssam /* SoH Mode Sub-Header */ 1202189251Ssam /* Outer Type */ 1203189251Ssam wpabuf_put_be16(buf, EAP_TLV_VENDOR_SPECIFIC_TLV); 1204189251Ssam wpabuf_put_be16(buf, 4 + 24 + 1 + 1); /* Length */ 1205189251Ssam wpabuf_put_be32(buf, EAP_VENDOR_MICROSOFT); /* IANA SMI Code */ 1206189251Ssam /* Value: */ 1207189251Ssam wpabuf_put_data(buf, correlation_id, sizeof(correlation_id)); 1208189251Ssam wpabuf_put_u8(buf, 0x01); /* Intent Flag - Request */ 1209189251Ssam wpabuf_put_u8(buf, 0x00); /* Content-Type Flag */ 1210189251Ssam } 1211189251Ssam 1212189251Ssam /* SSoH TLV */ 1213189251Ssam /* System-Health-Id */ 1214189251Ssam wpabuf_put_be16(buf, 0x0002); /* Type */ 1215189251Ssam wpabuf_put_be16(buf, 4); /* Length */ 1216189251Ssam wpabuf_put_be32(buf, 79616); 1217189251Ssam /* Vendor-Specific Attribute */ 1218189251Ssam wpabuf_put_be16(buf, EAP_TLV_VENDOR_SPECIFIC_TLV); 1219189251Ssam ssoh_len = wpabuf_put(buf, 2); 1220189251Ssam wpabuf_put_be32(buf, EAP_VENDOR_MICROSOFT); /* IANA SMI Code */ 1221189251Ssam 1222189251Ssam /* MS-Packet-Info */ 1223189251Ssam wpabuf_put_u8(buf, SSOH_MS_PACKET_INFO); 1224189251Ssam /* Note: IF-TNCCS-SOH v1.0 r8 claims this field to be: 1225189251Ssam * Reserved(4 bits) r(1 bit) Vers(3 bits), but Windows XP 1226189251Ssam * SP3 seems to be sending 0x11 for SSoH, i.e., r(request/response) bit 1227189251Ssam * would not be in the specified location. 1228189251Ssam * [MS-SOH] 4.0.2: Reserved(3 bits) r(1 bit) Vers(4 bits) 1229189251Ssam */ 1230189251Ssam wpabuf_put_u8(buf, 0x11); /* r=request, vers=1 */ 1231189251Ssam 1232189251Ssam /* MS-Machine-Inventory */ 1233189251Ssam /* TODO: get correct values; 0 = not applicable for OS */ 1234189251Ssam wpabuf_put_u8(buf, SSOH_MS_MACHINE_INVENTORY); 1235189251Ssam wpabuf_put_be32(buf, 0); /* osVersionMajor */ 1236189251Ssam wpabuf_put_be32(buf, 0); /* osVersionMinor */ 1237189251Ssam wpabuf_put_be32(buf, 0); /* osVersionBuild */ 1238189251Ssam wpabuf_put_be16(buf, 0); /* spVersionMajor */ 1239189251Ssam wpabuf_put_be16(buf, 0); /* spVersionMinor */ 1240189251Ssam wpabuf_put_be16(buf, 0); /* procArch */ 1241189251Ssam 1242189251Ssam /* MS-MachineName */ 1243189251Ssam wpabuf_put_u8(buf, SSOH_MS_MACHINENAME); 1244189251Ssam wpabuf_put_be16(buf, os_strlen(machinename) + 1); 1245189251Ssam wpabuf_put_data(buf, machinename, os_strlen(machinename) + 1); 1246189251Ssam 1247189251Ssam /* MS-CorrelationId */ 1248189251Ssam wpabuf_put_u8(buf, SSOH_MS_CORRELATIONID); 1249189251Ssam wpabuf_put_data(buf, correlation_id, sizeof(correlation_id)); 1250189251Ssam 1251189251Ssam /* MS-Quarantine-State */ 1252189251Ssam wpabuf_put_u8(buf, SSOH_MS_QUARANTINE_STATE); 1253189251Ssam wpabuf_put_be16(buf, 1); /* Flags: ExtState=0, f=0, qState=1 */ 1254189251Ssam wpabuf_put_be32(buf, 0xffffffff); /* ProbTime (hi) */ 1255189251Ssam wpabuf_put_be32(buf, 0xffffffff); /* ProbTime (lo) */ 1256189251Ssam wpabuf_put_be16(buf, 1); /* urlLenInBytes */ 1257189251Ssam wpabuf_put_u8(buf, 0); /* null termination for the url */ 1258189251Ssam 1259189251Ssam /* MS-Machine-Inventory-Ex */ 1260189251Ssam wpabuf_put_u8(buf, SSOH_MS_MACHINE_INVENTORY_EX); 1261189251Ssam wpabuf_put_be32(buf, 0); /* Reserved 1262189251Ssam * (note: Windows XP SP3 uses 0xdecafbad) */ 1263189251Ssam wpabuf_put_u8(buf, 1); /* ProductType: Client */ 1264189251Ssam 1265189251Ssam /* Update SSoH Length */ 1266189251Ssam end = wpabuf_put(buf, 0); 1267189251Ssam WPA_PUT_BE16(ssoh_len, end - ssoh_len - 2); 1268189251Ssam 1269189251Ssam /* TODO: SoHReportEntry TLV (zero or more) */ 1270189251Ssam 1271189251Ssam /* Update length fields */ 1272189251Ssam end = wpabuf_put(buf, 0); 1273189251Ssam WPA_PUT_BE16(tlv_len, end - tlv_len - 2); 1274189251Ssam WPA_PUT_BE16(tlv_len2, end - tlv_len2 - 2); 1275189251Ssam WPA_PUT_BE16(outer_len, end - outer_len - 2); 1276189251Ssam WPA_PUT_BE16(inner_len, end - inner_len - 2); 1277189251Ssam 1278189251Ssam return buf; 1279189251Ssam} 1280189251Ssam 1281189251Ssam 1282189251Ssamstruct wpabuf * tncc_process_soh_request(int ver, const u8 *data, size_t len) 1283189251Ssam{ 1284189251Ssam const u8 *pos; 1285189251Ssam 1286189251Ssam wpa_hexdump(MSG_DEBUG, "TNC: SoH Request", data, len); 1287189251Ssam 1288189251Ssam if (len < 12) 1289189251Ssam return NULL; 1290189251Ssam 1291189251Ssam /* SoH Request */ 1292189251Ssam pos = data; 1293189251Ssam 1294189251Ssam /* TLV Type */ 1295189251Ssam if (WPA_GET_BE16(pos) != EAP_TLV_VENDOR_SPECIFIC_TLV) 1296189251Ssam return NULL; 1297189251Ssam pos += 2; 1298189251Ssam 1299189251Ssam /* Length */ 1300189251Ssam if (WPA_GET_BE16(pos) < 8) 1301189251Ssam return NULL; 1302189251Ssam pos += 2; 1303189251Ssam 1304189251Ssam /* Vendor_Id */ 1305189251Ssam if (WPA_GET_BE32(pos) != EAP_VENDOR_MICROSOFT) 1306189251Ssam return NULL; 1307189251Ssam pos += 4; 1308189251Ssam 1309189251Ssam /* TLV Type */ 1310189251Ssam if (WPA_GET_BE16(pos) != 0x02 /* SoH request TLV */) 1311189251Ssam return NULL; 1312189251Ssam 1313189251Ssam wpa_printf(MSG_DEBUG, "TNC: SoH Request TLV received"); 1314189251Ssam 1315189251Ssam return tncc_build_soh(2); 1316189251Ssam} 1317