1 // SPDX-License-Identifier: BSD-2-Clause 2 /* 3 * Copyright (c) 2018-2020, Linaro Limited 4 */ 5 6 #include <pkcs11_ta.h> 7 #include <string.h> 8 #include <tee_internal_api.h> 9 #include <util.h> 10 11 #include "attributes.h" 12 #include "object.h" 13 #include "pkcs11_attributes.h" 14 #include "pkcs11_helpers.h" 15 16 static const char __maybe_unused unknown[] = "<unknown-identifier>"; 17 18 struct attr_size { 19 uint32_t id; 20 uint32_t size; 21 #if CFG_TEE_TA_LOG_LEVEL > 0 22 const char *string; 23 #endif 24 }; 25 26 #if CFG_TEE_TA_LOG_LEVEL > 0 27 #define PKCS11_ID_SZ(_id, _sz) \ 28 { .id = (uint32_t)(_id), .size = (_sz), .string = #_id } 29 #else 30 #define PKCS11_ID_SZ(_id, _sz) \ 31 { .id = (uint32_t)(_id), .size = (_sz) } 32 #endif 33 34 static const struct attr_size attr_ids[] = { 35 PKCS11_ID_SZ(PKCS11_CKA_CLASS, 4), 36 PKCS11_ID_SZ(PKCS11_CKA_KEY_TYPE, 4), 37 PKCS11_ID_SZ(PKCS11_CKA_VALUE, 0), 38 PKCS11_ID_SZ(PKCS11_CKA_VALUE_LEN, 4), 39 PKCS11_ID_SZ(PKCS11_CKA_LABEL, 0), 40 PKCS11_ID_SZ(PKCS11_CKA_WRAP_TEMPLATE, 0), 41 PKCS11_ID_SZ(PKCS11_CKA_UNWRAP_TEMPLATE, 0), 42 PKCS11_ID_SZ(PKCS11_CKA_DERIVE_TEMPLATE, 0), 43 PKCS11_ID_SZ(PKCS11_CKA_START_DATE, 4), 44 PKCS11_ID_SZ(PKCS11_CKA_END_DATE, 4), 45 PKCS11_ID_SZ(PKCS11_CKA_OBJECT_ID, 0), 46 PKCS11_ID_SZ(PKCS11_CKA_APPLICATION, 0), 47 PKCS11_ID_SZ(PKCS11_CKA_MECHANISM_TYPE, 4), 48 PKCS11_ID_SZ(PKCS11_CKA_ID, 0), 49 PKCS11_ID_SZ(PKCS11_CKA_ALLOWED_MECHANISMS, 0), 50 PKCS11_ID_SZ(PKCS11_CKA_EC_POINT, 0), 51 PKCS11_ID_SZ(PKCS11_CKA_EC_PARAMS, 0), 52 PKCS11_ID_SZ(PKCS11_CKA_MODULUS, 0), 53 PKCS11_ID_SZ(PKCS11_CKA_MODULUS_BITS, 4), 54 PKCS11_ID_SZ(PKCS11_CKA_PUBLIC_EXPONENT, 0), 55 PKCS11_ID_SZ(PKCS11_CKA_PRIVATE_EXPONENT, 0), 56 PKCS11_ID_SZ(PKCS11_CKA_PRIME_1, 0), 57 PKCS11_ID_SZ(PKCS11_CKA_PRIME_2, 0), 58 PKCS11_ID_SZ(PKCS11_CKA_EXPONENT_1, 0), 59 PKCS11_ID_SZ(PKCS11_CKA_EXPONENT_2, 0), 60 PKCS11_ID_SZ(PKCS11_CKA_COEFFICIENT, 0), 61 PKCS11_ID_SZ(PKCS11_CKA_SUBJECT, 0), 62 PKCS11_ID_SZ(PKCS11_CKA_PUBLIC_KEY_INFO, 0), 63 /* Below are boolean attributes */ 64 PKCS11_ID_SZ(PKCS11_CKA_TOKEN, 1), 65 PKCS11_ID_SZ(PKCS11_CKA_PRIVATE, 1), 66 PKCS11_ID_SZ(PKCS11_CKA_TRUSTED, 1), 67 PKCS11_ID_SZ(PKCS11_CKA_SENSITIVE, 1), 68 PKCS11_ID_SZ(PKCS11_CKA_ENCRYPT, 1), 69 PKCS11_ID_SZ(PKCS11_CKA_DECRYPT, 1), 70 PKCS11_ID_SZ(PKCS11_CKA_WRAP, 1), 71 PKCS11_ID_SZ(PKCS11_CKA_UNWRAP, 1), 72 PKCS11_ID_SZ(PKCS11_CKA_SIGN, 1), 73 PKCS11_ID_SZ(PKCS11_CKA_SIGN_RECOVER, 1), 74 PKCS11_ID_SZ(PKCS11_CKA_VERIFY, 1), 75 PKCS11_ID_SZ(PKCS11_CKA_VERIFY_RECOVER, 1), 76 PKCS11_ID_SZ(PKCS11_CKA_DERIVE, 1), 77 PKCS11_ID_SZ(PKCS11_CKA_EXTRACTABLE, 1), 78 PKCS11_ID_SZ(PKCS11_CKA_LOCAL, 1), 79 PKCS11_ID_SZ(PKCS11_CKA_NEVER_EXTRACTABLE, 1), 80 PKCS11_ID_SZ(PKCS11_CKA_ALWAYS_SENSITIVE, 1), 81 PKCS11_ID_SZ(PKCS11_CKA_MODIFIABLE, 1), 82 PKCS11_ID_SZ(PKCS11_CKA_COPYABLE, 1), 83 PKCS11_ID_SZ(PKCS11_CKA_DESTROYABLE, 1), 84 PKCS11_ID_SZ(PKCS11_CKA_ALWAYS_AUTHENTICATE, 1), 85 PKCS11_ID_SZ(PKCS11_CKA_WRAP_WITH_TRUSTED, 1), 86 /* Specific PKCS11 TA internal attribute ID */ 87 PKCS11_ID_SZ(PKCS11_CKA_UNDEFINED_ID, 0), 88 }; 89 90 struct any_id { 91 uint32_t id; 92 #if CFG_TEE_TA_LOG_LEVEL > 0 93 const char *string; 94 #endif 95 }; 96 97 /* 98 * Macro PKCS11_ID() can be used to define cells in ID list arrays 99 * or ID/string conversion arrays. 100 */ 101 #if CFG_TEE_TA_LOG_LEVEL > 0 102 #define PKCS11_ID(_id) { .id = _id, .string = #_id } 103 #else 104 #define PKCS11_ID(_id) { .id = _id } 105 #endif 106 107 #define ID2STR(id, table, prefix) \ 108 id2str(id, table, ARRAY_SIZE(table), prefix) 109 110 #if CFG_TEE_TA_LOG_LEVEL > 0 111 /* Convert a PKCS11 ID into its label string */ 112 static const char *id2str(uint32_t id, const struct any_id *table, 113 size_t count, const char *prefix) 114 { 115 size_t n = 0; 116 const char *str = NULL; 117 118 for (n = 0; n < count; n++) { 119 if (id != table[n].id) 120 continue; 121 122 str = table[n].string; 123 124 /* Skip prefix provided matches found */ 125 if (prefix && !TEE_MemCompare(str, prefix, strlen(prefix))) 126 str += strlen(prefix); 127 128 return str; 129 } 130 131 return unknown; 132 } 133 #endif /* CFG_TEE_TA_LOG_LEVEL > 0 */ 134 135 /* 136 * TA command IDs: used only as ID/string conversion for debug trace support 137 */ 138 static const struct any_id __maybe_unused string_ta_cmd[] = { 139 PKCS11_ID(PKCS11_CMD_PING), 140 PKCS11_ID(PKCS11_CMD_SLOT_LIST), 141 PKCS11_ID(PKCS11_CMD_SLOT_INFO), 142 PKCS11_ID(PKCS11_CMD_TOKEN_INFO), 143 PKCS11_ID(PKCS11_CMD_MECHANISM_IDS), 144 PKCS11_ID(PKCS11_CMD_MECHANISM_INFO), 145 PKCS11_ID(PKCS11_CMD_OPEN_SESSION), 146 PKCS11_ID(PKCS11_CMD_SESSION_INFO), 147 PKCS11_ID(PKCS11_CMD_CLOSE_SESSION), 148 PKCS11_ID(PKCS11_CMD_CLOSE_ALL_SESSIONS), 149 PKCS11_ID(PKCS11_CMD_INIT_TOKEN), 150 PKCS11_ID(PKCS11_CMD_INIT_PIN), 151 PKCS11_ID(PKCS11_CMD_SET_PIN), 152 PKCS11_ID(PKCS11_CMD_LOGIN), 153 PKCS11_ID(PKCS11_CMD_LOGOUT), 154 PKCS11_ID(PKCS11_CMD_CREATE_OBJECT), 155 PKCS11_ID(PKCS11_CMD_DESTROY_OBJECT), 156 PKCS11_ID(PKCS11_CMD_ENCRYPT_INIT), 157 PKCS11_ID(PKCS11_CMD_DECRYPT_INIT), 158 PKCS11_ID(PKCS11_CMD_ENCRYPT_UPDATE), 159 PKCS11_ID(PKCS11_CMD_DECRYPT_UPDATE), 160 PKCS11_ID(PKCS11_CMD_ENCRYPT_FINAL), 161 PKCS11_ID(PKCS11_CMD_DECRYPT_FINAL), 162 PKCS11_ID(PKCS11_CMD_ENCRYPT_ONESHOT), 163 PKCS11_ID(PKCS11_CMD_DECRYPT_ONESHOT), 164 PKCS11_ID(PKCS11_CMD_SIGN_INIT), 165 PKCS11_ID(PKCS11_CMD_VERIFY_INIT), 166 PKCS11_ID(PKCS11_CMD_SIGN_UPDATE), 167 PKCS11_ID(PKCS11_CMD_VERIFY_UPDATE), 168 PKCS11_ID(PKCS11_CMD_SIGN_FINAL), 169 PKCS11_ID(PKCS11_CMD_VERIFY_FINAL), 170 PKCS11_ID(PKCS11_CMD_SIGN_ONESHOT), 171 PKCS11_ID(PKCS11_CMD_VERIFY_ONESHOT), 172 PKCS11_ID(PKCS11_CMD_GENERATE_KEY), 173 PKCS11_ID(PKCS11_CMD_FIND_OBJECTS_INIT), 174 PKCS11_ID(PKCS11_CMD_FIND_OBJECTS), 175 PKCS11_ID(PKCS11_CMD_FIND_OBJECTS_FINAL), 176 }; 177 178 static const struct any_id __maybe_unused string_slot_flags[] = { 179 PKCS11_ID(PKCS11_CKFS_TOKEN_PRESENT), 180 PKCS11_ID(PKCS11_CKFS_REMOVABLE_DEVICE), 181 PKCS11_ID(PKCS11_CKFS_HW_SLOT), 182 }; 183 184 static const struct any_id __maybe_unused string_token_flags[] = { 185 PKCS11_ID(PKCS11_CKFT_RNG), 186 PKCS11_ID(PKCS11_CKFT_WRITE_PROTECTED), 187 PKCS11_ID(PKCS11_CKFT_LOGIN_REQUIRED), 188 PKCS11_ID(PKCS11_CKFT_USER_PIN_INITIALIZED), 189 PKCS11_ID(PKCS11_CKFT_RESTORE_KEY_NOT_NEEDED), 190 PKCS11_ID(PKCS11_CKFT_CLOCK_ON_TOKEN), 191 PKCS11_ID(PKCS11_CKFT_PROTECTED_AUTHENTICATION_PATH), 192 PKCS11_ID(PKCS11_CKFT_DUAL_CRYPTO_OPERATIONS), 193 PKCS11_ID(PKCS11_CKFT_TOKEN_INITIALIZED), 194 PKCS11_ID(PKCS11_CKFT_USER_PIN_COUNT_LOW), 195 PKCS11_ID(PKCS11_CKFT_USER_PIN_FINAL_TRY), 196 PKCS11_ID(PKCS11_CKFT_USER_PIN_LOCKED), 197 PKCS11_ID(PKCS11_CKFT_USER_PIN_TO_BE_CHANGED), 198 PKCS11_ID(PKCS11_CKFT_SO_PIN_COUNT_LOW), 199 PKCS11_ID(PKCS11_CKFT_SO_PIN_FINAL_TRY), 200 PKCS11_ID(PKCS11_CKFT_SO_PIN_LOCKED), 201 PKCS11_ID(PKCS11_CKFT_SO_PIN_TO_BE_CHANGED), 202 PKCS11_ID(PKCS11_CKFT_ERROR_STATE), 203 }; 204 205 static const struct any_id __maybe_unused string_session_flags[] = { 206 PKCS11_ID(PKCS11_CKFSS_RW_SESSION), 207 PKCS11_ID(PKCS11_CKFSS_SERIAL_SESSION), 208 }; 209 210 static const struct any_id __maybe_unused string_session_state[] = { 211 PKCS11_ID(PKCS11_CKS_RO_PUBLIC_SESSION), 212 PKCS11_ID(PKCS11_CKS_RO_USER_FUNCTIONS), 213 PKCS11_ID(PKCS11_CKS_RW_PUBLIC_SESSION), 214 PKCS11_ID(PKCS11_CKS_RW_USER_FUNCTIONS), 215 PKCS11_ID(PKCS11_CKS_RW_SO_FUNCTIONS), 216 }; 217 218 static const struct any_id __maybe_unused string_rc[] = { 219 PKCS11_ID(PKCS11_CKR_OK), 220 PKCS11_ID(PKCS11_CKR_GENERAL_ERROR), 221 PKCS11_ID(PKCS11_CKR_DEVICE_MEMORY), 222 PKCS11_ID(PKCS11_CKR_ARGUMENTS_BAD), 223 PKCS11_ID(PKCS11_CKR_BUFFER_TOO_SMALL), 224 PKCS11_ID(PKCS11_CKR_FUNCTION_FAILED), 225 PKCS11_ID(PKCS11_CKR_SIGNATURE_INVALID), 226 PKCS11_ID(PKCS11_CKR_ATTRIBUTE_TYPE_INVALID), 227 PKCS11_ID(PKCS11_CKR_ATTRIBUTE_VALUE_INVALID), 228 PKCS11_ID(PKCS11_CKR_OBJECT_HANDLE_INVALID), 229 PKCS11_ID(PKCS11_CKR_KEY_HANDLE_INVALID), 230 PKCS11_ID(PKCS11_CKR_MECHANISM_INVALID), 231 PKCS11_ID(PKCS11_CKR_SESSION_HANDLE_INVALID), 232 PKCS11_ID(PKCS11_CKR_SLOT_ID_INVALID), 233 PKCS11_ID(PKCS11_CKR_MECHANISM_PARAM_INVALID), 234 PKCS11_ID(PKCS11_CKR_TEMPLATE_INCONSISTENT), 235 PKCS11_ID(PKCS11_CKR_TEMPLATE_INCOMPLETE), 236 PKCS11_ID(PKCS11_CKR_PIN_INCORRECT), 237 PKCS11_ID(PKCS11_CKR_PIN_LOCKED), 238 PKCS11_ID(PKCS11_CKR_PIN_EXPIRED), 239 PKCS11_ID(PKCS11_CKR_PIN_INVALID), 240 PKCS11_ID(PKCS11_CKR_PIN_LEN_RANGE), 241 PKCS11_ID(PKCS11_CKR_SESSION_EXISTS), 242 PKCS11_ID(PKCS11_CKR_SESSION_PARALLEL_NOT_SUPPORTED), 243 PKCS11_ID(PKCS11_CKR_SESSION_READ_ONLY), 244 PKCS11_ID(PKCS11_CKR_SESSION_READ_WRITE_SO_EXISTS), 245 PKCS11_ID(PKCS11_CKR_OPERATION_ACTIVE), 246 PKCS11_ID(PKCS11_CKR_KEY_FUNCTION_NOT_PERMITTED), 247 PKCS11_ID(PKCS11_CKR_OPERATION_NOT_INITIALIZED), 248 PKCS11_ID(PKCS11_CKR_TOKEN_WRITE_PROTECTED), 249 PKCS11_ID(PKCS11_CKR_TOKEN_NOT_PRESENT), 250 PKCS11_ID(PKCS11_CKR_TOKEN_NOT_RECOGNIZED), 251 PKCS11_ID(PKCS11_CKR_ACTION_PROHIBITED), 252 PKCS11_ID(PKCS11_CKR_ATTRIBUTE_READ_ONLY), 253 PKCS11_ID(PKCS11_CKR_PIN_TOO_WEAK), 254 PKCS11_ID(PKCS11_CKR_CURVE_NOT_SUPPORTED), 255 PKCS11_ID(PKCS11_CKR_DOMAIN_PARAMS_INVALID), 256 PKCS11_ID(PKCS11_CKR_USER_ALREADY_LOGGED_IN), 257 PKCS11_ID(PKCS11_CKR_USER_ANOTHER_ALREADY_LOGGED_IN), 258 PKCS11_ID(PKCS11_CKR_USER_NOT_LOGGED_IN), 259 PKCS11_ID(PKCS11_CKR_USER_PIN_NOT_INITIALIZED), 260 PKCS11_ID(PKCS11_CKR_USER_TOO_MANY_TYPES), 261 PKCS11_ID(PKCS11_CKR_USER_TYPE_INVALID), 262 PKCS11_ID(PKCS11_CKR_KEY_SIZE_RANGE), 263 PKCS11_ID(PKCS11_CKR_SESSION_READ_ONLY_EXISTS), 264 PKCS11_ID(PKCS11_CKR_SIGNATURE_LEN_RANGE), 265 PKCS11_ID(PKCS11_RV_NOT_FOUND), 266 PKCS11_ID(PKCS11_RV_NOT_IMPLEMENTED), 267 }; 268 269 static const struct any_id __maybe_unused string_class[] = { 270 PKCS11_ID(PKCS11_CKO_SECRET_KEY), 271 PKCS11_ID(PKCS11_CKO_PUBLIC_KEY), 272 PKCS11_ID(PKCS11_CKO_PRIVATE_KEY), 273 PKCS11_ID(PKCS11_CKO_OTP_KEY), 274 PKCS11_ID(PKCS11_CKO_CERTIFICATE), 275 PKCS11_ID(PKCS11_CKO_DATA), 276 PKCS11_ID(PKCS11_CKO_DOMAIN_PARAMETERS), 277 PKCS11_ID(PKCS11_CKO_HW_FEATURE), 278 PKCS11_ID(PKCS11_CKO_MECHANISM), 279 PKCS11_ID(PKCS11_CKO_UNDEFINED_ID) 280 }; 281 282 static const struct any_id __maybe_unused string_key_type[] = { 283 PKCS11_ID(PKCS11_CKK_AES), 284 PKCS11_ID(PKCS11_CKK_GENERIC_SECRET), 285 PKCS11_ID(PKCS11_CKK_MD5_HMAC), 286 PKCS11_ID(PKCS11_CKK_SHA_1_HMAC), 287 PKCS11_ID(PKCS11_CKK_SHA224_HMAC), 288 PKCS11_ID(PKCS11_CKK_SHA256_HMAC), 289 PKCS11_ID(PKCS11_CKK_SHA384_HMAC), 290 PKCS11_ID(PKCS11_CKK_SHA512_HMAC), 291 PKCS11_ID(PKCS11_CKK_EC), 292 PKCS11_ID(PKCS11_CKK_RSA), 293 PKCS11_ID(PKCS11_CKK_UNDEFINED_ID) 294 }; 295 296 /* 297 * Processing IDs not exported in the TA API. 298 * PKCS11_CKM_* mechanism IDs are looked up from mechanism_string_id(). 299 */ 300 static const struct any_id __maybe_unused string_internal_processing[] = { 301 PKCS11_ID(PKCS11_PROCESSING_IMPORT), 302 }; 303 304 static const struct any_id __maybe_unused string_functions[] = { 305 PKCS11_ID(PKCS11_FUNCTION_IMPORT), 306 PKCS11_ID(PKCS11_FUNCTION_ENCRYPT), 307 PKCS11_ID(PKCS11_FUNCTION_DECRYPT), 308 PKCS11_ID(PKCS11_FUNCTION_SIGN), 309 PKCS11_ID(PKCS11_FUNCTION_VERIFY), 310 }; 311 312 /* 313 * Conversion between PKCS11 TA and GPD TEE return codes 314 */ 315 enum pkcs11_rc tee2pkcs_error(TEE_Result res) 316 { 317 switch (res) { 318 case TEE_SUCCESS: 319 return PKCS11_CKR_OK; 320 321 case TEE_ERROR_BAD_PARAMETERS: 322 return PKCS11_CKR_ARGUMENTS_BAD; 323 324 case TEE_ERROR_OUT_OF_MEMORY: 325 return PKCS11_CKR_DEVICE_MEMORY; 326 327 case TEE_ERROR_SHORT_BUFFER: 328 return PKCS11_CKR_BUFFER_TOO_SMALL; 329 330 case TEE_ERROR_MAC_INVALID: 331 case TEE_ERROR_SIGNATURE_INVALID: 332 return PKCS11_CKR_SIGNATURE_INVALID; 333 334 default: 335 return PKCS11_CKR_GENERAL_ERROR; 336 } 337 } 338 339 /* 340 * Helper functions to analyse PKCS11 identifiers 341 */ 342 343 /* Check attribute ID is known and size matches if fixed */ 344 bool valid_pkcs11_attribute_id(uint32_t id, uint32_t size) 345 { 346 size_t n = 0; 347 348 for (n = 0; n < ARRAY_SIZE(attr_ids); n++) 349 if (id == attr_ids[n].id) 350 return !attr_ids[n].size || size == attr_ids[n].size; 351 352 return false; 353 } 354 355 size_t pkcs11_attr_is_type(uint32_t attribute_id) 356 { 357 enum pkcs11_attr_id id = attribute_id; 358 359 switch (id) { 360 case PKCS11_CKA_KEY_TYPE: 361 case PKCS11_CKA_MECHANISM_TYPE: 362 case PKCS11_CKA_KEY_GEN_MECHANISM: 363 return sizeof(uint32_t); 364 default: 365 return 0; 366 } 367 } 368 369 bool pkcs11_class_has_type(uint32_t class) 370 { 371 enum pkcs11_class_id class_id = class; 372 373 switch (class_id) { 374 case PKCS11_CKO_CERTIFICATE: 375 case PKCS11_CKO_PUBLIC_KEY: 376 case PKCS11_CKO_PRIVATE_KEY: 377 case PKCS11_CKO_SECRET_KEY: 378 case PKCS11_CKO_MECHANISM: 379 case PKCS11_CKO_HW_FEATURE: 380 return true; 381 default: 382 return false; 383 } 384 } 385 386 bool pkcs11_attr_class_is_key(uint32_t class) 387 { 388 enum pkcs11_class_id class_id = class; 389 390 switch (class_id) { 391 case PKCS11_CKO_SECRET_KEY: 392 case PKCS11_CKO_PUBLIC_KEY: 393 case PKCS11_CKO_PRIVATE_KEY: 394 return true; 395 default: 396 return false; 397 } 398 } 399 400 bool key_type_is_symm_key(uint32_t id) 401 { 402 enum pkcs11_key_type key_type = id; 403 404 switch (key_type) { 405 case PKCS11_CKK_AES: 406 case PKCS11_CKK_GENERIC_SECRET: 407 case PKCS11_CKK_MD5_HMAC: 408 case PKCS11_CKK_SHA_1_HMAC: 409 case PKCS11_CKK_SHA224_HMAC: 410 case PKCS11_CKK_SHA256_HMAC: 411 case PKCS11_CKK_SHA384_HMAC: 412 case PKCS11_CKK_SHA512_HMAC: 413 return true; 414 default: 415 return false; 416 } 417 } 418 419 bool key_type_is_asymm_key(uint32_t id) 420 { 421 enum pkcs11_key_type key_type = id; 422 423 switch (key_type) { 424 case PKCS11_CKK_EC: 425 case PKCS11_CKK_RSA: 426 return true; 427 default: 428 return false; 429 } 430 } 431 432 /* 433 * Returns shift position or -1 on error. 434 * Mainly used when PKCS11_SHEAD_WITH_BOOLPROPS is enabled 435 */ 436 int pkcs11_attr2boolprop_shift(uint32_t attr) 437 { 438 static const uint32_t bpa[] = { 439 [BPA_TOKEN] = PKCS11_CKA_TOKEN, 440 [BPA_PRIVATE] = PKCS11_CKA_PRIVATE, 441 [BPA_TRUSTED] = PKCS11_CKA_TRUSTED, 442 [BPA_SENSITIVE] = PKCS11_CKA_SENSITIVE, 443 [BPA_ENCRYPT] = PKCS11_CKA_ENCRYPT, 444 [BPA_DECRYPT] = PKCS11_CKA_DECRYPT, 445 [BPA_WRAP] = PKCS11_CKA_WRAP, 446 [BPA_UNWRAP] = PKCS11_CKA_UNWRAP, 447 [BPA_SIGN] = PKCS11_CKA_SIGN, 448 [BPA_SIGN_RECOVER] = PKCS11_CKA_SIGN_RECOVER, 449 [BPA_VERIFY] = PKCS11_CKA_VERIFY, 450 [BPA_VERIFY_RECOVER] = PKCS11_CKA_VERIFY_RECOVER, 451 [BPA_DERIVE] = PKCS11_CKA_DERIVE, 452 [BPA_EXTRACTABLE] = PKCS11_CKA_EXTRACTABLE, 453 [BPA_LOCAL] = PKCS11_CKA_LOCAL, 454 [BPA_NEVER_EXTRACTABLE] = PKCS11_CKA_NEVER_EXTRACTABLE, 455 [BPA_ALWAYS_SENSITIVE] = PKCS11_CKA_ALWAYS_SENSITIVE, 456 [BPA_MODIFIABLE] = PKCS11_CKA_MODIFIABLE, 457 [BPA_COPYABLE] = PKCS11_CKA_COPYABLE, 458 [BPA_DESTROYABLE] = PKCS11_CKA_DESTROYABLE, 459 [BPA_ALWAYS_AUTHENTICATE] = PKCS11_CKA_ALWAYS_AUTHENTICATE, 460 [BPA_WRAP_WITH_TRUSTED] = PKCS11_CKA_WRAP_WITH_TRUSTED, 461 }; 462 size_t pos = 0; 463 464 for (pos = 0; pos < ARRAY_SIZE(bpa); pos++) 465 if (bpa[pos] == attr) 466 return (int)pos; 467 468 return -1; 469 } 470 471 /* Initialize a TEE attribute for a target PKCS11 TA attribute in an object */ 472 bool pkcs2tee_load_attr(TEE_Attribute *tee_ref, uint32_t tee_id, 473 struct pkcs11_object *obj, 474 enum pkcs11_attr_id pkcs11_id) 475 { 476 void *a_ptr = NULL; 477 uint32_t a_size = 0; 478 479 if (get_attribute_ptr(obj->attributes, pkcs11_id, &a_ptr, &a_size)) 480 return false; 481 482 TEE_InitRefAttribute(tee_ref, tee_id, a_ptr, a_size); 483 484 return true; 485 } 486 487 /* 488 * Initialize a TEE attribute with hash of a target PKCS11 TA attribute 489 * in an object. 490 */ 491 enum pkcs11_rc pkcs2tee_load_hashed_attr(TEE_Attribute *tee_ref, 492 uint32_t tee_id, 493 struct pkcs11_object *obj, 494 enum pkcs11_attr_id pkcs11_id, 495 uint32_t tee_algo, void *hash_ptr, 496 uint32_t *hash_size) 497 { 498 TEE_OperationHandle handle = TEE_HANDLE_NULL; 499 void *a_ptr = NULL; 500 uint32_t a_size = 0; 501 enum pkcs11_rc rc = PKCS11_CKR_OK; 502 TEE_Result res = TEE_ERROR_GENERIC; 503 504 rc = get_attribute_ptr(obj->attributes, pkcs11_id, &a_ptr, &a_size); 505 if (rc) 506 return rc; 507 508 res = TEE_AllocateOperation(&handle, tee_algo, TEE_MODE_DIGEST, 0); 509 if (res) { 510 EMSG("TEE_AllocateOperation() failed %#"PRIx32, tee_algo); 511 return tee2pkcs_error(res); 512 } 513 514 res = TEE_DigestDoFinal(handle, a_ptr, a_size, hash_ptr, hash_size); 515 TEE_FreeOperation(handle); 516 if (res) { 517 EMSG("TEE_DigestDoFinal() failed %#"PRIx32, tee_algo); 518 return PKCS11_CKR_FUNCTION_FAILED; 519 } 520 521 TEE_InitRefAttribute(tee_ref, tee_id, hash_ptr, *hash_size); 522 523 return PKCS11_CKR_OK; 524 } 525 526 /* Easy conversion between PKCS11 TA function of TEE crypto mode */ 527 void pkcs2tee_mode(uint32_t *tee_id, enum processing_func function) 528 { 529 switch (function) { 530 case PKCS11_FUNCTION_ENCRYPT: 531 *tee_id = TEE_MODE_ENCRYPT; 532 break; 533 case PKCS11_FUNCTION_DECRYPT: 534 *tee_id = TEE_MODE_DECRYPT; 535 break; 536 case PKCS11_FUNCTION_SIGN: 537 *tee_id = TEE_MODE_SIGN; 538 break; 539 case PKCS11_FUNCTION_VERIFY: 540 *tee_id = TEE_MODE_VERIFY; 541 break; 542 case PKCS11_FUNCTION_DERIVE: 543 *tee_id = TEE_MODE_DERIVE; 544 break; 545 default: 546 TEE_Panic(function); 547 } 548 } 549 550 #if CFG_TEE_TA_LOG_LEVEL > 0 551 const char *id2str_rc(uint32_t id) 552 { 553 return ID2STR(id, string_rc, "PKCS11_CKR_"); 554 } 555 556 const char *id2str_ta_cmd(uint32_t id) 557 { 558 return ID2STR(id, string_ta_cmd, NULL); 559 } 560 561 const char *id2str_slot_flag(uint32_t id) 562 { 563 return ID2STR(id, string_slot_flags, "PKCS11_CKFS_"); 564 } 565 566 const char *id2str_token_flag(uint32_t id) 567 { 568 return ID2STR(id, string_token_flags, "PKCS11_CKFT_"); 569 } 570 571 const char *id2str_session_flag(uint32_t id) 572 { 573 return ID2STR(id, string_session_flags, "PKCS11_CKFSS_"); 574 } 575 576 const char *id2str_session_state(uint32_t id) 577 { 578 return ID2STR(id, string_session_state, "PKCS11_CKS_"); 579 } 580 581 const char *id2str_attr(uint32_t id) 582 { 583 size_t n = 0; 584 585 for (n = 0; n < ARRAY_SIZE(attr_ids); n++) { 586 if (id == attr_ids[n].id) { 587 /* Skip PKCS11_CKA_ prefix */ 588 return attr_ids[n].string + strlen("PKCS11_CKA_"); 589 } 590 } 591 592 return unknown; 593 } 594 595 const char *id2str_class(uint32_t id) 596 { 597 return ID2STR(id, string_class, "PKCS11_CKO_"); 598 } 599 600 const char *id2str_type(uint32_t id, uint32_t class) 601 { 602 enum pkcs11_class_id class_id = class; 603 enum pkcs11_key_type key_type = id; 604 605 switch (class_id) { 606 case PKCS11_CKO_SECRET_KEY: 607 case PKCS11_CKO_PUBLIC_KEY: 608 case PKCS11_CKO_PRIVATE_KEY: 609 return id2str_key_type(key_type); 610 default: 611 return unknown; 612 } 613 } 614 615 const char *id2str_key_type(uint32_t id) 616 { 617 return ID2STR(id, string_key_type, "PKCS11_CKK_"); 618 } 619 620 const char *id2str_attr_value(uint32_t id, size_t size, void *value) 621 { 622 static const char str_true[] = "TRUE"; 623 static const char str_false[] = "FALSE"; 624 static const char str_unknown[] = "*"; 625 uint32_t type = 0; 626 627 if (pkcs11_attr2boolprop_shift(id) >= 0) 628 return *(uint8_t *)value ? str_true : str_false; 629 630 if (size < sizeof(uint32_t)) 631 return str_unknown; 632 633 TEE_MemMove(&type, value, sizeof(uint32_t)); 634 635 switch (id) { 636 case PKCS11_CKA_CLASS: 637 return id2str_class(type); 638 case PKCS11_CKA_KEY_TYPE: 639 return id2str_key_type(type); 640 case PKCS11_CKA_MECHANISM_TYPE: 641 return id2str_mechanism(type); 642 default: 643 return str_unknown; 644 } 645 } 646 647 const char *id2str_proc(uint32_t id) 648 { 649 const char *str = ID2STR(id, string_internal_processing, 650 "PKCS11_PROCESSING_"); 651 652 if (str != unknown) 653 return str; 654 655 return id2str_mechanism(id); 656 } 657 658 const char *id2str_function(uint32_t id) 659 { 660 return ID2STR(id, string_functions, "PKCS11_FUNCTION_"); 661 } 662 #endif /*CFG_TEE_TA_LOG_LEVEL*/ 663