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 }; 174 175 static const struct any_id __maybe_unused string_slot_flags[] = { 176 PKCS11_ID(PKCS11_CKFS_TOKEN_PRESENT), 177 PKCS11_ID(PKCS11_CKFS_REMOVABLE_DEVICE), 178 PKCS11_ID(PKCS11_CKFS_HW_SLOT), 179 }; 180 181 static const struct any_id __maybe_unused string_token_flags[] = { 182 PKCS11_ID(PKCS11_CKFT_RNG), 183 PKCS11_ID(PKCS11_CKFT_WRITE_PROTECTED), 184 PKCS11_ID(PKCS11_CKFT_LOGIN_REQUIRED), 185 PKCS11_ID(PKCS11_CKFT_USER_PIN_INITIALIZED), 186 PKCS11_ID(PKCS11_CKFT_RESTORE_KEY_NOT_NEEDED), 187 PKCS11_ID(PKCS11_CKFT_CLOCK_ON_TOKEN), 188 PKCS11_ID(PKCS11_CKFT_PROTECTED_AUTHENTICATION_PATH), 189 PKCS11_ID(PKCS11_CKFT_DUAL_CRYPTO_OPERATIONS), 190 PKCS11_ID(PKCS11_CKFT_TOKEN_INITIALIZED), 191 PKCS11_ID(PKCS11_CKFT_USER_PIN_COUNT_LOW), 192 PKCS11_ID(PKCS11_CKFT_USER_PIN_FINAL_TRY), 193 PKCS11_ID(PKCS11_CKFT_USER_PIN_LOCKED), 194 PKCS11_ID(PKCS11_CKFT_USER_PIN_TO_BE_CHANGED), 195 PKCS11_ID(PKCS11_CKFT_SO_PIN_COUNT_LOW), 196 PKCS11_ID(PKCS11_CKFT_SO_PIN_FINAL_TRY), 197 PKCS11_ID(PKCS11_CKFT_SO_PIN_LOCKED), 198 PKCS11_ID(PKCS11_CKFT_SO_PIN_TO_BE_CHANGED), 199 PKCS11_ID(PKCS11_CKFT_ERROR_STATE), 200 }; 201 202 static const struct any_id __maybe_unused string_session_flags[] = { 203 PKCS11_ID(PKCS11_CKFSS_RW_SESSION), 204 PKCS11_ID(PKCS11_CKFSS_SERIAL_SESSION), 205 }; 206 207 static const struct any_id __maybe_unused string_session_state[] = { 208 PKCS11_ID(PKCS11_CKS_RO_PUBLIC_SESSION), 209 PKCS11_ID(PKCS11_CKS_RO_USER_FUNCTIONS), 210 PKCS11_ID(PKCS11_CKS_RW_PUBLIC_SESSION), 211 PKCS11_ID(PKCS11_CKS_RW_USER_FUNCTIONS), 212 PKCS11_ID(PKCS11_CKS_RW_SO_FUNCTIONS), 213 }; 214 215 static const struct any_id __maybe_unused string_rc[] = { 216 PKCS11_ID(PKCS11_CKR_OK), 217 PKCS11_ID(PKCS11_CKR_GENERAL_ERROR), 218 PKCS11_ID(PKCS11_CKR_DEVICE_MEMORY), 219 PKCS11_ID(PKCS11_CKR_ARGUMENTS_BAD), 220 PKCS11_ID(PKCS11_CKR_BUFFER_TOO_SMALL), 221 PKCS11_ID(PKCS11_CKR_FUNCTION_FAILED), 222 PKCS11_ID(PKCS11_CKR_SIGNATURE_INVALID), 223 PKCS11_ID(PKCS11_CKR_ATTRIBUTE_TYPE_INVALID), 224 PKCS11_ID(PKCS11_CKR_ATTRIBUTE_VALUE_INVALID), 225 PKCS11_ID(PKCS11_CKR_OBJECT_HANDLE_INVALID), 226 PKCS11_ID(PKCS11_CKR_KEY_HANDLE_INVALID), 227 PKCS11_ID(PKCS11_CKR_MECHANISM_INVALID), 228 PKCS11_ID(PKCS11_CKR_SESSION_HANDLE_INVALID), 229 PKCS11_ID(PKCS11_CKR_SLOT_ID_INVALID), 230 PKCS11_ID(PKCS11_CKR_MECHANISM_PARAM_INVALID), 231 PKCS11_ID(PKCS11_CKR_TEMPLATE_INCONSISTENT), 232 PKCS11_ID(PKCS11_CKR_TEMPLATE_INCOMPLETE), 233 PKCS11_ID(PKCS11_CKR_PIN_INCORRECT), 234 PKCS11_ID(PKCS11_CKR_PIN_LOCKED), 235 PKCS11_ID(PKCS11_CKR_PIN_EXPIRED), 236 PKCS11_ID(PKCS11_CKR_PIN_INVALID), 237 PKCS11_ID(PKCS11_CKR_PIN_LEN_RANGE), 238 PKCS11_ID(PKCS11_CKR_SESSION_EXISTS), 239 PKCS11_ID(PKCS11_CKR_SESSION_PARALLEL_NOT_SUPPORTED), 240 PKCS11_ID(PKCS11_CKR_SESSION_READ_ONLY), 241 PKCS11_ID(PKCS11_CKR_SESSION_READ_WRITE_SO_EXISTS), 242 PKCS11_ID(PKCS11_CKR_OPERATION_ACTIVE), 243 PKCS11_ID(PKCS11_CKR_KEY_FUNCTION_NOT_PERMITTED), 244 PKCS11_ID(PKCS11_CKR_OPERATION_NOT_INITIALIZED), 245 PKCS11_ID(PKCS11_CKR_TOKEN_WRITE_PROTECTED), 246 PKCS11_ID(PKCS11_CKR_TOKEN_NOT_PRESENT), 247 PKCS11_ID(PKCS11_CKR_TOKEN_NOT_RECOGNIZED), 248 PKCS11_ID(PKCS11_CKR_ACTION_PROHIBITED), 249 PKCS11_ID(PKCS11_CKR_ATTRIBUTE_READ_ONLY), 250 PKCS11_ID(PKCS11_CKR_PIN_TOO_WEAK), 251 PKCS11_ID(PKCS11_CKR_CURVE_NOT_SUPPORTED), 252 PKCS11_ID(PKCS11_CKR_DOMAIN_PARAMS_INVALID), 253 PKCS11_ID(PKCS11_CKR_USER_ALREADY_LOGGED_IN), 254 PKCS11_ID(PKCS11_CKR_USER_ANOTHER_ALREADY_LOGGED_IN), 255 PKCS11_ID(PKCS11_CKR_USER_NOT_LOGGED_IN), 256 PKCS11_ID(PKCS11_CKR_USER_PIN_NOT_INITIALIZED), 257 PKCS11_ID(PKCS11_CKR_USER_TOO_MANY_TYPES), 258 PKCS11_ID(PKCS11_CKR_USER_TYPE_INVALID), 259 PKCS11_ID(PKCS11_CKR_KEY_SIZE_RANGE), 260 PKCS11_ID(PKCS11_CKR_SESSION_READ_ONLY_EXISTS), 261 PKCS11_ID(PKCS11_CKR_SIGNATURE_LEN_RANGE), 262 PKCS11_ID(PKCS11_RV_NOT_FOUND), 263 PKCS11_ID(PKCS11_RV_NOT_IMPLEMENTED), 264 }; 265 266 static const struct any_id __maybe_unused string_class[] = { 267 PKCS11_ID(PKCS11_CKO_SECRET_KEY), 268 PKCS11_ID(PKCS11_CKO_PUBLIC_KEY), 269 PKCS11_ID(PKCS11_CKO_PRIVATE_KEY), 270 PKCS11_ID(PKCS11_CKO_OTP_KEY), 271 PKCS11_ID(PKCS11_CKO_CERTIFICATE), 272 PKCS11_ID(PKCS11_CKO_DATA), 273 PKCS11_ID(PKCS11_CKO_DOMAIN_PARAMETERS), 274 PKCS11_ID(PKCS11_CKO_HW_FEATURE), 275 PKCS11_ID(PKCS11_CKO_MECHANISM), 276 PKCS11_ID(PKCS11_CKO_UNDEFINED_ID) 277 }; 278 279 static const struct any_id __maybe_unused string_key_type[] = { 280 PKCS11_ID(PKCS11_CKK_AES), 281 PKCS11_ID(PKCS11_CKK_GENERIC_SECRET), 282 PKCS11_ID(PKCS11_CKK_MD5_HMAC), 283 PKCS11_ID(PKCS11_CKK_SHA_1_HMAC), 284 PKCS11_ID(PKCS11_CKK_SHA224_HMAC), 285 PKCS11_ID(PKCS11_CKK_SHA256_HMAC), 286 PKCS11_ID(PKCS11_CKK_SHA384_HMAC), 287 PKCS11_ID(PKCS11_CKK_SHA512_HMAC), 288 PKCS11_ID(PKCS11_CKK_EC), 289 PKCS11_ID(PKCS11_CKK_RSA), 290 PKCS11_ID(PKCS11_CKK_UNDEFINED_ID) 291 }; 292 293 /* 294 * Processing IDs not exported in the TA API. 295 * PKCS11_CKM_* mechanism IDs are looked up from mechanism_string_id(). 296 */ 297 static const struct any_id __maybe_unused string_internal_processing[] = { 298 PKCS11_ID(PKCS11_PROCESSING_IMPORT), 299 }; 300 301 static const struct any_id __maybe_unused string_functions[] = { 302 PKCS11_ID(PKCS11_FUNCTION_IMPORT), 303 PKCS11_ID(PKCS11_FUNCTION_ENCRYPT), 304 PKCS11_ID(PKCS11_FUNCTION_DECRYPT), 305 PKCS11_ID(PKCS11_FUNCTION_SIGN), 306 PKCS11_ID(PKCS11_FUNCTION_VERIFY), 307 }; 308 309 /* 310 * Conversion between PKCS11 TA and GPD TEE return codes 311 */ 312 enum pkcs11_rc tee2pkcs_error(TEE_Result res) 313 { 314 switch (res) { 315 case TEE_SUCCESS: 316 return PKCS11_CKR_OK; 317 318 case TEE_ERROR_BAD_PARAMETERS: 319 return PKCS11_CKR_ARGUMENTS_BAD; 320 321 case TEE_ERROR_OUT_OF_MEMORY: 322 return PKCS11_CKR_DEVICE_MEMORY; 323 324 case TEE_ERROR_SHORT_BUFFER: 325 return PKCS11_CKR_BUFFER_TOO_SMALL; 326 327 case TEE_ERROR_MAC_INVALID: 328 case TEE_ERROR_SIGNATURE_INVALID: 329 return PKCS11_CKR_SIGNATURE_INVALID; 330 331 default: 332 return PKCS11_CKR_GENERAL_ERROR; 333 } 334 } 335 336 /* 337 * Helper functions to analyse PKCS11 identifiers 338 */ 339 340 /* Check attribute ID is known and size matches if fixed */ 341 bool valid_pkcs11_attribute_id(uint32_t id, uint32_t size) 342 { 343 size_t n = 0; 344 345 for (n = 0; n < ARRAY_SIZE(attr_ids); n++) 346 if (id == attr_ids[n].id) 347 return !attr_ids[n].size || size == attr_ids[n].size; 348 349 return false; 350 } 351 352 size_t pkcs11_attr_is_type(uint32_t attribute_id) 353 { 354 enum pkcs11_attr_id id = attribute_id; 355 356 switch (id) { 357 case PKCS11_CKA_KEY_TYPE: 358 case PKCS11_CKA_MECHANISM_TYPE: 359 case PKCS11_CKA_KEY_GEN_MECHANISM: 360 return sizeof(uint32_t); 361 default: 362 return 0; 363 } 364 } 365 366 bool pkcs11_class_has_type(uint32_t class) 367 { 368 enum pkcs11_class_id class_id = class; 369 370 switch (class_id) { 371 case PKCS11_CKO_CERTIFICATE: 372 case PKCS11_CKO_PUBLIC_KEY: 373 case PKCS11_CKO_PRIVATE_KEY: 374 case PKCS11_CKO_SECRET_KEY: 375 case PKCS11_CKO_MECHANISM: 376 case PKCS11_CKO_HW_FEATURE: 377 return true; 378 default: 379 return false; 380 } 381 } 382 383 bool pkcs11_attr_class_is_key(uint32_t class) 384 { 385 enum pkcs11_class_id class_id = class; 386 387 switch (class_id) { 388 case PKCS11_CKO_SECRET_KEY: 389 case PKCS11_CKO_PUBLIC_KEY: 390 case PKCS11_CKO_PRIVATE_KEY: 391 return true; 392 default: 393 return false; 394 } 395 } 396 397 bool key_type_is_symm_key(uint32_t id) 398 { 399 enum pkcs11_key_type key_type = id; 400 401 switch (key_type) { 402 case PKCS11_CKK_AES: 403 case PKCS11_CKK_GENERIC_SECRET: 404 case PKCS11_CKK_MD5_HMAC: 405 case PKCS11_CKK_SHA_1_HMAC: 406 case PKCS11_CKK_SHA224_HMAC: 407 case PKCS11_CKK_SHA256_HMAC: 408 case PKCS11_CKK_SHA384_HMAC: 409 case PKCS11_CKK_SHA512_HMAC: 410 return true; 411 default: 412 return false; 413 } 414 } 415 416 bool key_type_is_asymm_key(uint32_t id) 417 { 418 enum pkcs11_key_type key_type = id; 419 420 switch (key_type) { 421 case PKCS11_CKK_EC: 422 case PKCS11_CKK_RSA: 423 return true; 424 default: 425 return false; 426 } 427 } 428 429 /* 430 * Returns shift position or -1 on error. 431 * Mainly used when PKCS11_SHEAD_WITH_BOOLPROPS is enabled 432 */ 433 int pkcs11_attr2boolprop_shift(uint32_t attr) 434 { 435 static const uint32_t bpa[] = { 436 [BPA_TOKEN] = PKCS11_CKA_TOKEN, 437 [BPA_PRIVATE] = PKCS11_CKA_PRIVATE, 438 [BPA_TRUSTED] = PKCS11_CKA_TRUSTED, 439 [BPA_SENSITIVE] = PKCS11_CKA_SENSITIVE, 440 [BPA_ENCRYPT] = PKCS11_CKA_ENCRYPT, 441 [BPA_DECRYPT] = PKCS11_CKA_DECRYPT, 442 [BPA_WRAP] = PKCS11_CKA_WRAP, 443 [BPA_UNWRAP] = PKCS11_CKA_UNWRAP, 444 [BPA_SIGN] = PKCS11_CKA_SIGN, 445 [BPA_SIGN_RECOVER] = PKCS11_CKA_SIGN_RECOVER, 446 [BPA_VERIFY] = PKCS11_CKA_VERIFY, 447 [BPA_VERIFY_RECOVER] = PKCS11_CKA_VERIFY_RECOVER, 448 [BPA_DERIVE] = PKCS11_CKA_DERIVE, 449 [BPA_EXTRACTABLE] = PKCS11_CKA_EXTRACTABLE, 450 [BPA_LOCAL] = PKCS11_CKA_LOCAL, 451 [BPA_NEVER_EXTRACTABLE] = PKCS11_CKA_NEVER_EXTRACTABLE, 452 [BPA_ALWAYS_SENSITIVE] = PKCS11_CKA_ALWAYS_SENSITIVE, 453 [BPA_MODIFIABLE] = PKCS11_CKA_MODIFIABLE, 454 [BPA_COPYABLE] = PKCS11_CKA_COPYABLE, 455 [BPA_DESTROYABLE] = PKCS11_CKA_DESTROYABLE, 456 [BPA_ALWAYS_AUTHENTICATE] = PKCS11_CKA_ALWAYS_AUTHENTICATE, 457 [BPA_WRAP_WITH_TRUSTED] = PKCS11_CKA_WRAP_WITH_TRUSTED, 458 }; 459 size_t pos = 0; 460 461 for (pos = 0; pos < ARRAY_SIZE(bpa); pos++) 462 if (bpa[pos] == attr) 463 return (int)pos; 464 465 return -1; 466 } 467 468 /* Initialize a TEE attribute for a target PKCS11 TA attribute in an object */ 469 bool pkcs2tee_load_attr(TEE_Attribute *tee_ref, uint32_t tee_id, 470 struct pkcs11_object *obj, 471 enum pkcs11_attr_id pkcs11_id) 472 { 473 void *a_ptr = NULL; 474 uint32_t a_size = 0; 475 476 if (get_attribute_ptr(obj->attributes, pkcs11_id, &a_ptr, &a_size)) 477 return false; 478 479 TEE_InitRefAttribute(tee_ref, tee_id, a_ptr, a_size); 480 481 return true; 482 } 483 484 /* 485 * Initialize a TEE attribute with hash of a target PKCS11 TA attribute 486 * in an object. 487 */ 488 enum pkcs11_rc pkcs2tee_load_hashed_attr(TEE_Attribute *tee_ref, 489 uint32_t tee_id, 490 struct pkcs11_object *obj, 491 enum pkcs11_attr_id pkcs11_id, 492 uint32_t tee_algo, void *hash_ptr, 493 uint32_t *hash_size) 494 { 495 TEE_OperationHandle handle = TEE_HANDLE_NULL; 496 void *a_ptr = NULL; 497 uint32_t a_size = 0; 498 enum pkcs11_rc rc = PKCS11_CKR_OK; 499 TEE_Result res = TEE_ERROR_GENERIC; 500 501 rc = get_attribute_ptr(obj->attributes, pkcs11_id, &a_ptr, &a_size); 502 if (rc) 503 return rc; 504 505 res = TEE_AllocateOperation(&handle, tee_algo, TEE_MODE_DIGEST, 0); 506 if (res) { 507 EMSG("TEE_AllocateOperation() failed %#"PRIx32, tee_algo); 508 return tee2pkcs_error(res); 509 } 510 511 res = TEE_DigestDoFinal(handle, a_ptr, a_size, hash_ptr, hash_size); 512 TEE_FreeOperation(handle); 513 if (res) { 514 EMSG("TEE_DigestDoFinal() failed %#"PRIx32, tee_algo); 515 return PKCS11_CKR_FUNCTION_FAILED; 516 } 517 518 TEE_InitRefAttribute(tee_ref, tee_id, hash_ptr, *hash_size); 519 520 return PKCS11_CKR_OK; 521 } 522 523 /* Easy conversion between PKCS11 TA function of TEE crypto mode */ 524 void pkcs2tee_mode(uint32_t *tee_id, enum processing_func function) 525 { 526 switch (function) { 527 case PKCS11_FUNCTION_ENCRYPT: 528 *tee_id = TEE_MODE_ENCRYPT; 529 break; 530 case PKCS11_FUNCTION_DECRYPT: 531 *tee_id = TEE_MODE_DECRYPT; 532 break; 533 case PKCS11_FUNCTION_SIGN: 534 *tee_id = TEE_MODE_SIGN; 535 break; 536 case PKCS11_FUNCTION_VERIFY: 537 *tee_id = TEE_MODE_VERIFY; 538 break; 539 case PKCS11_FUNCTION_DERIVE: 540 *tee_id = TEE_MODE_DERIVE; 541 break; 542 default: 543 TEE_Panic(function); 544 } 545 } 546 547 #if CFG_TEE_TA_LOG_LEVEL > 0 548 const char *id2str_rc(uint32_t id) 549 { 550 return ID2STR(id, string_rc, "PKCS11_CKR_"); 551 } 552 553 const char *id2str_ta_cmd(uint32_t id) 554 { 555 return ID2STR(id, string_ta_cmd, NULL); 556 } 557 558 const char *id2str_slot_flag(uint32_t id) 559 { 560 return ID2STR(id, string_slot_flags, "PKCS11_CKFS_"); 561 } 562 563 const char *id2str_token_flag(uint32_t id) 564 { 565 return ID2STR(id, string_token_flags, "PKCS11_CKFT_"); 566 } 567 568 const char *id2str_session_flag(uint32_t id) 569 { 570 return ID2STR(id, string_session_flags, "PKCS11_CKFSS_"); 571 } 572 573 const char *id2str_session_state(uint32_t id) 574 { 575 return ID2STR(id, string_session_state, "PKCS11_CKS_"); 576 } 577 578 const char *id2str_attr(uint32_t id) 579 { 580 size_t n = 0; 581 582 for (n = 0; n < ARRAY_SIZE(attr_ids); n++) { 583 if (id == attr_ids[n].id) { 584 /* Skip PKCS11_CKA_ prefix */ 585 return attr_ids[n].string + strlen("PKCS11_CKA_"); 586 } 587 } 588 589 return unknown; 590 } 591 592 const char *id2str_class(uint32_t id) 593 { 594 return ID2STR(id, string_class, "PKCS11_CKO_"); 595 } 596 597 const char *id2str_type(uint32_t id, uint32_t class) 598 { 599 enum pkcs11_class_id class_id = class; 600 enum pkcs11_key_type key_type = id; 601 602 switch (class_id) { 603 case PKCS11_CKO_SECRET_KEY: 604 case PKCS11_CKO_PUBLIC_KEY: 605 case PKCS11_CKO_PRIVATE_KEY: 606 return id2str_key_type(key_type); 607 default: 608 return unknown; 609 } 610 } 611 612 const char *id2str_key_type(uint32_t id) 613 { 614 return ID2STR(id, string_key_type, "PKCS11_CKK_"); 615 } 616 617 const char *id2str_attr_value(uint32_t id, size_t size, void *value) 618 { 619 static const char str_true[] = "TRUE"; 620 static const char str_false[] = "FALSE"; 621 static const char str_unknown[] = "*"; 622 uint32_t type = 0; 623 624 if (pkcs11_attr2boolprop_shift(id) >= 0) 625 return *(uint8_t *)value ? str_true : str_false; 626 627 if (size < sizeof(uint32_t)) 628 return str_unknown; 629 630 TEE_MemMove(&type, value, sizeof(uint32_t)); 631 632 switch (id) { 633 case PKCS11_CKA_CLASS: 634 return id2str_class(type); 635 case PKCS11_CKA_KEY_TYPE: 636 return id2str_key_type(type); 637 case PKCS11_CKA_MECHANISM_TYPE: 638 return id2str_mechanism(type); 639 default: 640 return str_unknown; 641 } 642 } 643 644 const char *id2str_proc(uint32_t id) 645 { 646 const char *str = ID2STR(id, string_internal_processing, 647 "PKCS11_PROCESSING_"); 648 649 if (str != unknown) 650 return str; 651 652 return id2str_mechanism(id); 653 } 654 655 const char *id2str_function(uint32_t id) 656 { 657 return ID2STR(id, string_functions, "PKCS11_FUNCTION_"); 658 } 659 #endif /*CFG_TEE_TA_LOG_LEVEL*/ 660