1 /* 2 * SSL/TLS interface definition 3 * Copyright (c) 2004-2013, Jouni Malinen <j@w1.fi> 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 */ 8 9 #ifndef TLS_H 10 #define TLS_H 11 12 #ifdef LOS_CONFIG_WPA_ENTERPRISE 13 #include "soc_wifi_api.h" 14 #endif /* LOS_CONFIG_WPA_ENTERPRISE */ 15 16 struct tls_connection; 17 18 struct tls_random { 19 const u8 *client_random; 20 size_t client_random_len; 21 const u8 *server_random; 22 size_t server_random_len; 23 }; 24 25 enum tls_event { 26 TLS_CERT_CHAIN_SUCCESS, 27 TLS_CERT_CHAIN_FAILURE, 28 TLS_PEER_CERTIFICATE, 29 TLS_ALERT 30 }; 31 32 /* 33 * Note: These are used as identifier with external programs and as such, the 34 * values must not be changed. 35 */ 36 enum tls_fail_reason { 37 TLS_FAIL_UNSPECIFIED = 0, 38 TLS_FAIL_UNTRUSTED = 1, 39 TLS_FAIL_REVOKED = 2, 40 TLS_FAIL_NOT_YET_VALID = 3, 41 TLS_FAIL_EXPIRED = 4, 42 TLS_FAIL_SUBJECT_MISMATCH = 5, 43 TLS_FAIL_ALTSUBJECT_MISMATCH = 6, 44 TLS_FAIL_BAD_CERTIFICATE = 7, 45 TLS_FAIL_SERVER_CHAIN_PROBE = 8, 46 TLS_FAIL_DOMAIN_SUFFIX_MISMATCH = 9, 47 TLS_FAIL_DOMAIN_MISMATCH = 10, 48 TLS_FAIL_INSUFFICIENT_KEY_LEN = 11, 49 TLS_FAIL_DN_MISMATCH = 12, 50 }; 51 52 53 #define TLS_MAX_ALT_SUBJECT 10 54 55 struct tls_cert_data { 56 int depth; 57 const char *subject; 58 const struct wpabuf *cert; 59 const u8 *hash; 60 size_t hash_len; 61 const char *altsubject[TLS_MAX_ALT_SUBJECT]; 62 int num_altsubject; 63 const char *serial_num; 64 int tod; 65 }; 66 67 union tls_event_data { 68 struct { 69 int depth; 70 const char *subject; 71 enum tls_fail_reason reason; 72 const char *reason_txt; 73 const struct wpabuf *cert; 74 } cert_fail; 75 76 struct tls_cert_data peer_cert; 77 78 struct { 79 int is_local; 80 const char *type; 81 const char *description; 82 } alert; 83 }; 84 85 struct tls_config { 86 const char *opensc_engine_path; 87 const char *pkcs11_engine_path; 88 const char *pkcs11_module_path; 89 int fips_mode; 90 int cert_in_cb; 91 const char *openssl_ciphers; 92 unsigned int tls_session_lifetime; 93 unsigned int crl_reload_interval; 94 unsigned int tls_flags; 95 96 void (*event_cb)(void *ctx, enum tls_event ev, 97 union tls_event_data *data); 98 void *cb_ctx; 99 }; 100 101 #define TLS_CONN_ALLOW_SIGN_RSA_MD5 BIT(0) 102 #define TLS_CONN_DISABLE_TIME_CHECKS BIT(1) 103 #define TLS_CONN_DISABLE_SESSION_TICKET BIT(2) 104 #define TLS_CONN_REQUEST_OCSP BIT(3) 105 #define TLS_CONN_REQUIRE_OCSP BIT(4) 106 #define TLS_CONN_DISABLE_TLSv1_1 BIT(5) 107 #define TLS_CONN_DISABLE_TLSv1_2 BIT(6) 108 #define TLS_CONN_EAP_FAST BIT(7) 109 #define TLS_CONN_DISABLE_TLSv1_0 BIT(8) 110 #define TLS_CONN_EXT_CERT_CHECK BIT(9) 111 #define TLS_CONN_REQUIRE_OCSP_ALL BIT(10) 112 #define TLS_CONN_SUITEB BIT(11) 113 #define TLS_CONN_SUITEB_NO_ECDH BIT(12) 114 #define TLS_CONN_DISABLE_TLSv1_3 BIT(13) 115 #define TLS_CONN_ENABLE_TLSv1_0 BIT(14) 116 #define TLS_CONN_ENABLE_TLSv1_1 BIT(15) 117 #define TLS_CONN_ENABLE_TLSv1_2 BIT(16) 118 #define TLS_CONN_TEAP_ANON_DH BIT(17) 119 120 /** 121 * struct tls_connection_params - Parameters for TLS connection 122 * @ca_cert: File or reference name for CA X.509 certificate in PEM or DER 123 * format 124 * @ca_cert_blob: ca_cert as inlined data or %NULL if not used 125 * @ca_cert_blob_len: ca_cert_blob length 126 * @ca_path: Path to CA certificates (OpenSSL specific) 127 * @subject_match: String to match in the subject of the peer certificate or 128 * %NULL to allow all subjects 129 * @altsubject_match: String to match in the alternative subject of the peer 130 * certificate or %NULL to allow all alternative subjects 131 * @suffix_match: Semicolon deliminated string of values to suffix match against 132 * the dNSName or CN of the peer certificate or %NULL to allow all domain names. 133 * This may allow subdomains and wildcard certificates. Each domain name label 134 * must have a full case-insensitive match. 135 * @domain_match: String to match in the dNSName or CN of the peer 136 * certificate or %NULL to allow all domain names. This requires a full, 137 * case-insensitive match. 138 * 139 * More than one match string can be provided by using semicolons to 140 * separate the strings (e.g., example.org;example.com). When multiple 141 * strings are specified, a match with any one of the values is 142 * considered a sufficient match for the certificate, i.e., the 143 * conditions are ORed together. 144 * @client_cert: File or reference name for client X.509 certificate in PEM or 145 * DER format 146 * @client_cert_blob: client_cert as inlined data or %NULL if not used 147 * @client_cert_blob_len: client_cert_blob length 148 * @private_key: File or reference name for client private key in PEM or DER 149 * format (traditional format (RSA PRIVATE KEY) or PKCS#8 (PRIVATE KEY) 150 * @private_key_blob: private_key as inlined data or %NULL if not used 151 * @private_key_blob_len: private_key_blob length 152 * @private_key_passwd: Passphrase for decrypted private key, %NULL if no 153 * passphrase is used. 154 * @dh_file: File name for DH/DSA data in PEM format, or %NULL if not used 155 * @dh_blob: dh_file as inlined data or %NULL if not used 156 * @dh_blob_len: dh_blob length 157 * @engine: 1 = use engine (e.g., a smartcard) for private key operations 158 * (this is OpenSSL specific for now) 159 * @engine_id: engine id string (this is OpenSSL specific for now) 160 * @ppin: pointer to the pin variable in the configuration 161 * (this is OpenSSL specific for now) 162 * @key_id: the private key's id when using engine (this is OpenSSL 163 * specific for now) 164 * @cert_id: the certificate's id when using engine 165 * @ca_cert_id: the CA certificate's id when using engine 166 * @openssl_ciphers: OpenSSL cipher configuration 167 * @openssl_ecdh_curves: OpenSSL ECDH curve configuration. %NULL for auto if 168 * supported, empty string to disable, or a colon-separated curve list. 169 * @flags: Parameter options (TLS_CONN_*) 170 * @ocsp_stapling_response: DER encoded file with cached OCSP stapling response 171 * or %NULL if OCSP is not enabled 172 * @ocsp_stapling_response_multi: DER encoded file with cached OCSP stapling 173 * response list (OCSPResponseList for ocsp_multi in RFC 6961) or %NULL if 174 * ocsp_multi is not enabled 175 * @check_cert_subject: Client certificate subject name matching string 176 * 177 * TLS connection parameters to be configured with tls_connection_set_params() 178 * and tls_global_set_params(). 179 * 180 * Certificates and private key can be configured either as a reference name 181 * (file path or reference to certificate store) or by providing the same data 182 * as a pointer to the data in memory. Only one option will be used for each 183 * field. 184 */ 185 struct tls_connection_params { 186 const char *ca_cert; 187 const u8 *ca_cert_blob; 188 size_t ca_cert_blob_len; 189 const char *ca_path; 190 const char *subject_match; 191 const char *altsubject_match; 192 const char *suffix_match; 193 const char *domain_match; 194 const char *client_cert; 195 const char *client_cert2; 196 const u8 *client_cert_blob; 197 size_t client_cert_blob_len; 198 const char *private_key; 199 const char *private_key2; 200 const u8 *private_key_blob; 201 size_t private_key_blob_len; 202 const char *private_key_passwd; 203 const char *private_key_passwd2; 204 const char *dh_file; 205 const u8 *dh_blob; 206 size_t dh_blob_len; 207 208 /* OpenSSL specific variables */ 209 int engine; 210 const char *engine_id; 211 const char *pin; 212 const char *key_id; 213 const char *cert_id; 214 const char *ca_cert_id; 215 const char *openssl_ciphers; 216 const char *openssl_ecdh_curves; 217 218 unsigned int flags; 219 const char *ocsp_stapling_response; 220 const char *ocsp_stapling_response_multi; 221 const char *check_cert_subject; 222 }; 223 224 225 /** 226 * tls_init - Initialize TLS library 227 * @conf: Configuration data for TLS library 228 * Returns: Context data to be used as tls_ctx in calls to other functions, 229 * or %NULL on failure. 230 * 231 * Called once during program startup and once for each RSN pre-authentication 232 * session. In other words, there can be two concurrent TLS contexts. If global 233 * library initialization is needed (i.e., one that is shared between both 234 * authentication types), the TLS library wrapper should maintain a reference 235 * counter and do global initialization only when moving from 0 to 1 reference. 236 */ 237 void * tls_init(const struct tls_config *conf); 238 239 /** 240 * tls_deinit - Deinitialize TLS library 241 * @tls_ctx: TLS context data from tls_init() 242 * 243 * Called once during program shutdown and once for each RSN pre-authentication 244 * session. If global library deinitialization is needed (i.e., one that is 245 * shared between both authentication types), the TLS library wrapper should 246 * maintain a reference counter and do global deinitialization only when moving 247 * from 1 to 0 references. 248 */ 249 void tls_deinit(void *tls_ctx); 250 251 /** 252 * tls_get_errors - Process pending errors 253 * @tls_ctx: TLS context data from tls_init() 254 * Returns: Number of found error, 0 if no errors detected. 255 * 256 * Process all pending TLS errors. 257 */ 258 int tls_get_errors(void *tls_ctx); 259 260 /** 261 * tls_connection_init - Initialize a new TLS connection 262 * @tls_ctx: TLS context data from tls_init() 263 * Returns: Connection context data, conn for other function calls 264 */ 265 struct tls_connection * tls_connection_init(void *tls_ctx); 266 267 /** 268 * tls_connection_deinit - Free TLS connection data 269 * @tls_ctx: TLS context data from tls_init() 270 * @conn: Connection context data from tls_connection_init() 271 * 272 * Release all resources allocated for TLS connection. 273 */ 274 void tls_connection_deinit(void *tls_ctx, struct tls_connection *conn); 275 276 /** 277 * tls_connection_established - Has the TLS connection been completed? 278 * @tls_ctx: TLS context data from tls_init() 279 * @conn: Connection context data from tls_connection_init() 280 * Returns: 1 if TLS connection has been completed, 0 if not. 281 */ 282 int tls_connection_established(void *tls_ctx, struct tls_connection *conn); 283 284 /** 285 * tls_connection_peer_serial_num - Fetch peer certificate serial number 286 * @tls_ctx: TLS context data from tls_init() 287 * @conn: Connection context data from tls_connection_init() 288 * Returns: Allocated string buffer containing the peer certificate serial 289 * number or %NULL on error. 290 * 291 * The caller is responsible for freeing the returned buffer with os_free(). 292 */ 293 char * tls_connection_peer_serial_num(void *tls_ctx, 294 struct tls_connection *conn); 295 296 /** 297 * tls_connection_shutdown - Shutdown TLS connection 298 * @tls_ctx: TLS context data from tls_init() 299 * @conn: Connection context data from tls_connection_init() 300 * Returns: 0 on success, -1 on failure 301 * 302 * Shutdown current TLS connection without releasing all resources. New 303 * connection can be started by using the same conn without having to call 304 * tls_connection_init() or setting certificates etc. again. The new 305 * connection should try to use session resumption. 306 */ 307 int tls_connection_shutdown(void *tls_ctx, struct tls_connection *conn); 308 309 enum { 310 TLS_SET_PARAMS_ENGINE_PRV_BAD_PIN = -4, 311 TLS_SET_PARAMS_ENGINE_PRV_VERIFY_FAILED = -3, 312 TLS_SET_PARAMS_ENGINE_PRV_INIT_FAILED = -2 313 }; 314 315 /** 316 * tls_connection_set_params - Set TLS connection parameters 317 * @tls_ctx: TLS context data from tls_init() 318 * @conn: Connection context data from tls_connection_init() 319 * @params: Connection parameters 320 * Returns: 0 on success, -1 on failure, 321 * TLS_SET_PARAMS_ENGINE_PRV_INIT_FAILED (-2) on error causing PKCS#11 engine 322 * failure, or 323 * TLS_SET_PARAMS_ENGINE_PRV_VERIFY_FAILED (-3) on failure to verify the 324 * PKCS#11 engine private key, or 325 * TLS_SET_PARAMS_ENGINE_PRV_BAD_PIN (-4) on PIN error causing PKCS#11 engine 326 * failure. 327 */ 328 int __must_check 329 tls_connection_set_params(void *tls_ctx, struct tls_connection *conn, 330 const struct tls_connection_params *params); 331 332 /** 333 * tls_global_set_params - Set TLS parameters for all TLS connection 334 * @tls_ctx: TLS context data from tls_init() 335 * @params: Global TLS parameters 336 * Returns: 0 on success, -1 on failure, 337 * TLS_SET_PARAMS_ENGINE_PRV_INIT_FAILED (-2) on error causing PKCS#11 engine 338 * failure, or 339 * TLS_SET_PARAMS_ENGINE_PRV_VERIFY_FAILED (-3) on failure to verify the 340 * PKCS#11 engine private key, or 341 * TLS_SET_PARAMS_ENGINE_PRV_BAD_PIN (-4) on PIN error causing PKCS#11 engine 342 * failure. 343 */ 344 int __must_check tls_global_set_params( 345 void *tls_ctx, const struct tls_connection_params *params); 346 347 /** 348 * tls_global_set_verify - Set global certificate verification options 349 * @tls_ctx: TLS context data from tls_init() 350 * @check_crl: 0 = do not verify CRLs, 1 = verify CRL for the user certificate, 351 * 2 = verify CRL for all certificates 352 * @strict: 0 = allow CRL time errors, 1 = do not allow CRL time errors 353 * Returns: 0 on success, -1 on failure 354 */ 355 int __must_check tls_global_set_verify(void *tls_ctx, int check_crl, 356 int strict); 357 358 /** 359 * tls_connection_set_verify - Set certificate verification options 360 * @tls_ctx: TLS context data from tls_init() 361 * @conn: Connection context data from tls_connection_init() 362 * @verify_peer: 1 = verify peer certificate 363 * @flags: Connection flags (TLS_CONN_*) 364 * @session_ctx: Session caching context or %NULL to use default 365 * @session_ctx_len: Length of @session_ctx in bytes. 366 * Returns: 0 on success, -1 on failure 367 */ 368 int __must_check tls_connection_set_verify(void *tls_ctx, 369 struct tls_connection *conn, 370 int verify_peer, 371 unsigned int flags, 372 const u8 *session_ctx, 373 size_t session_ctx_len); 374 375 /** 376 * tls_connection_get_random - Get random data from TLS connection 377 * @tls_ctx: TLS context data from tls_init() 378 * @conn: Connection context data from tls_connection_init() 379 * @data: Structure of client/server random data (filled on success) 380 * Returns: 0 on success, -1 on failure 381 */ 382 int __must_check tls_connection_get_random(void *tls_ctx, 383 struct tls_connection *conn, 384 struct tls_random *data); 385 386 /** 387 * tls_connection_export_key - Derive keying material from a TLS connection 388 * @tls_ctx: TLS context data from tls_init() 389 * @conn: Connection context data from tls_connection_init() 390 * @label: Label (e.g., description of the key) for PRF 391 * @context: Optional extra upper-layer context (max len 2^16) 392 * @context_len: The length of the context value 393 * @out: Buffer for output data from TLS-PRF 394 * @out_len: Length of the output buffer 395 * Returns: 0 on success, -1 on failure 396 * 397 * Exports keying material using the mechanism described in RFC 5705. If 398 * context is %NULL, context is not provided; otherwise, context is provided 399 * (including the case of empty context with context_len == 0). 400 */ 401 int __must_check tls_connection_export_key(void *tls_ctx, 402 struct tls_connection *conn, 403 const char *label, 404 const u8 *context, 405 size_t context_len, 406 u8 *out, size_t out_len); 407 408 /** 409 * tls_connection_get_eap_fast_key - Derive key material for EAP-FAST 410 * @tls_ctx: TLS context data from tls_init() 411 * @conn: Connection context data from tls_connection_init() 412 * @out: Buffer for output data from TLS-PRF 413 * @out_len: Length of the output buffer 414 * Returns: 0 on success, -1 on failure 415 * 416 * Exports key material after the normal TLS key block for use with 417 * EAP-FAST. Most callers will want tls_connection_export_key(), but EAP-FAST 418 * uses a different legacy mechanism. 419 */ 420 int __must_check tls_connection_get_eap_fast_key(void *tls_ctx, 421 struct tls_connection *conn, 422 u8 *out, size_t out_len); 423 424 /** 425 * tls_connection_handshake - Process TLS handshake (client side) 426 * @tls_ctx: TLS context data from tls_init() 427 * @conn: Connection context data from tls_connection_init() 428 * @in_data: Input data from TLS server 429 * @appl_data: Pointer to application data pointer, or %NULL if dropped 430 * Returns: Output data, %NULL on failure 431 * 432 * The caller is responsible for freeing the returned output data. If the final 433 * handshake message includes application data, this is decrypted and 434 * appl_data (if not %NULL) is set to point this data. The caller is 435 * responsible for freeing appl_data. 436 * 437 * This function is used during TLS handshake. The first call is done with 438 * in_data == %NULL and the library is expected to return ClientHello packet. 439 * This packet is then send to the server and a response from server is given 440 * to TLS library by calling this function again with in_data pointing to the 441 * TLS message from the server. 442 * 443 * If the TLS handshake fails, this function may return %NULL. However, if the 444 * TLS library has a TLS alert to send out, that should be returned as the 445 * output data. In this case, tls_connection_get_failed() must return failure 446 * (> 0). 447 * 448 * tls_connection_established() should return 1 once the TLS handshake has been 449 * completed successfully. 450 */ 451 struct wpabuf * tls_connection_handshake(void *tls_ctx, 452 struct tls_connection *conn, 453 const struct wpabuf *in_data, 454 struct wpabuf **appl_data); 455 456 struct wpabuf * tls_connection_handshake2(void *tls_ctx, 457 struct tls_connection *conn, 458 const struct wpabuf *in_data, 459 struct wpabuf **appl_data, 460 int *more_data_needed); 461 462 /** 463 * tls_connection_server_handshake - Process TLS handshake (server side) 464 * @tls_ctx: TLS context data from tls_init() 465 * @conn: Connection context data from tls_connection_init() 466 * @in_data: Input data from TLS peer 467 * @appl_data: Pointer to application data pointer, or %NULL if dropped 468 * Returns: Output data, %NULL on failure 469 * 470 * The caller is responsible for freeing the returned output data. 471 */ 472 struct wpabuf * tls_connection_server_handshake(void *tls_ctx, 473 struct tls_connection *conn, 474 const struct wpabuf *in_data, 475 struct wpabuf **appl_data); 476 477 /** 478 * tls_connection_encrypt - Encrypt data into TLS tunnel 479 * @tls_ctx: TLS context data from tls_init() 480 * @conn: Connection context data from tls_connection_init() 481 * @in_data: Plaintext data to be encrypted 482 * Returns: Encrypted TLS data or %NULL on failure 483 * 484 * This function is used after TLS handshake has been completed successfully to 485 * send data in the encrypted tunnel. The caller is responsible for freeing the 486 * returned output data. 487 */ 488 struct wpabuf * tls_connection_encrypt(void *tls_ctx, 489 struct tls_connection *conn, 490 const struct wpabuf *in_data); 491 492 /** 493 * tls_connection_decrypt - Decrypt data from TLS tunnel 494 * @tls_ctx: TLS context data from tls_init() 495 * @conn: Connection context data from tls_connection_init() 496 * @in_data: Encrypted TLS data 497 * Returns: Decrypted TLS data or %NULL on failure 498 * 499 * This function is used after TLS handshake has been completed successfully to 500 * receive data from the encrypted tunnel. The caller is responsible for 501 * freeing the returned output data. 502 */ 503 struct wpabuf * tls_connection_decrypt(void *tls_ctx, 504 struct tls_connection *conn, 505 const struct wpabuf *in_data); 506 507 struct wpabuf * tls_connection_decrypt2(void *tls_ctx, 508 struct tls_connection *conn, 509 const struct wpabuf *in_data, 510 int *more_data_needed); 511 512 /** 513 * tls_connection_resumed - Was session resumption used 514 * @tls_ctx: TLS context data from tls_init() 515 * @conn: Connection context data from tls_connection_init() 516 * Returns: 1 if current session used session resumption, 0 if not 517 */ 518 int tls_connection_resumed(void *tls_ctx, struct tls_connection *conn); 519 520 enum { 521 TLS_CIPHER_NONE, 522 TLS_CIPHER_RC4_SHA /* 0x0005 */, 523 TLS_CIPHER_AES128_SHA /* 0x002f */, 524 TLS_CIPHER_RSA_DHE_AES128_SHA /* 0x0031 */, 525 TLS_CIPHER_ANON_DH_AES128_SHA /* 0x0034 */, 526 TLS_CIPHER_RSA_DHE_AES256_SHA /* 0x0039 */, 527 TLS_CIPHER_AES256_SHA /* 0x0035 */, 528 }; 529 530 /** 531 * tls_connection_set_cipher_list - Configure acceptable cipher suites 532 * @tls_ctx: TLS context data from tls_init() 533 * @conn: Connection context data from tls_connection_init() 534 * @ciphers: Zero (TLS_CIPHER_NONE) terminated list of allowed ciphers 535 * (TLS_CIPHER_*). 536 * Returns: 0 on success, -1 on failure 537 */ 538 int __must_check tls_connection_set_cipher_list(void *tls_ctx, 539 struct tls_connection *conn, 540 u8 *ciphers); 541 542 /** 543 * tls_get_version - Get the current TLS version number 544 * @tls_ctx: TLS context data from tls_init() 545 * @conn: Connection context data from tls_connection_init() 546 * @buf: Buffer for returning the TLS version number 547 * @buflen: buf size 548 * Returns: 0 on success, -1 on failure 549 * 550 * Get the currently used TLS version number. 551 */ 552 int __must_check tls_get_version(void *tls_ctx, struct tls_connection *conn, 553 char *buf, size_t buflen); 554 555 /** 556 * tls_get_cipher - Get current cipher name 557 * @tls_ctx: TLS context data from tls_init() 558 * @conn: Connection context data from tls_connection_init() 559 * @buf: Buffer for the cipher name 560 * @buflen: buf size 561 * Returns: 0 on success, -1 on failure 562 * 563 * Get the name of the currently used cipher. 564 */ 565 int __must_check tls_get_cipher(void *tls_ctx, struct tls_connection *conn, 566 char *buf, size_t buflen); 567 568 /** 569 * tls_connection_enable_workaround - Enable TLS workaround options 570 * @tls_ctx: TLS context data from tls_init() 571 * @conn: Connection context data from tls_connection_init() 572 * Returns: 0 on success, -1 on failure 573 * 574 * This function is used to enable connection-specific workaround options for 575 * buffer SSL/TLS implementations. 576 */ 577 int __must_check tls_connection_enable_workaround(void *tls_ctx, 578 struct tls_connection *conn); 579 580 /** 581 * tls_connection_client_hello_ext - Set TLS extension for ClientHello 582 * @tls_ctx: TLS context data from tls_init() 583 * @conn: Connection context data from tls_connection_init() 584 * @ext_type: Extension type 585 * @data: Extension payload (%NULL to remove extension) 586 * @data_len: Extension payload length 587 * Returns: 0 on success, -1 on failure 588 */ 589 int __must_check tls_connection_client_hello_ext(void *tls_ctx, 590 struct tls_connection *conn, 591 int ext_type, const u8 *data, 592 size_t data_len); 593 594 /** 595 * tls_connection_get_failed - Get connection failure status 596 * @tls_ctx: TLS context data from tls_init() 597 * @conn: Connection context data from tls_connection_init() 598 * 599 * Returns >0 if connection has failed, 0 if not. 600 */ 601 int tls_connection_get_failed(void *tls_ctx, struct tls_connection *conn); 602 603 /** 604 * tls_connection_get_read_alerts - Get connection read alert status 605 * @tls_ctx: TLS context data from tls_init() 606 * @conn: Connection context data from tls_connection_init() 607 * Returns: Number of times a fatal read (remote end reported error) has 608 * happened during this connection. 609 */ 610 int tls_connection_get_read_alerts(void *tls_ctx, struct tls_connection *conn); 611 612 /** 613 * tls_connection_get_write_alerts - Get connection write alert status 614 * @tls_ctx: TLS context data from tls_init() 615 * @conn: Connection context data from tls_connection_init() 616 * Returns: Number of times a fatal write (locally detected error) has happened 617 * during this connection. 618 */ 619 int tls_connection_get_write_alerts(void *tls_ctx, 620 struct tls_connection *conn); 621 622 typedef int (*tls_session_ticket_cb) 623 (void *ctx, const u8 *ticket, size_t len, const u8 *client_random, 624 const u8 *server_random, u8 *master_secret); 625 626 int __must_check tls_connection_set_session_ticket_cb( 627 void *tls_ctx, struct tls_connection *conn, 628 tls_session_ticket_cb cb, void *ctx); 629 630 void tls_connection_set_log_cb(struct tls_connection *conn, 631 void (*log_cb)(void *ctx, const char *msg), 632 void *ctx); 633 634 #define TLS_BREAK_VERIFY_DATA BIT(0) 635 #define TLS_BREAK_SRV_KEY_X_HASH BIT(1) 636 #define TLS_BREAK_SRV_KEY_X_SIGNATURE BIT(2) 637 #define TLS_DHE_PRIME_511B BIT(3) 638 #define TLS_DHE_PRIME_767B BIT(4) 639 #define TLS_DHE_PRIME_15 BIT(5) 640 #define TLS_DHE_PRIME_58B BIT(6) 641 #define TLS_DHE_NON_PRIME BIT(7) 642 643 void tls_connection_set_test_flags(struct tls_connection *conn, u32 flags); 644 645 int tls_get_library_version(char *buf, size_t buf_len); 646 647 void tls_connection_set_success_data(struct tls_connection *conn, 648 struct wpabuf *data); 649 650 void tls_connection_set_success_data_resumed(struct tls_connection *conn); 651 652 const struct wpabuf * 653 tls_connection_get_success_data(struct tls_connection *conn); 654 655 void tls_connection_remove_session(struct tls_connection *conn); 656 657 /** 658 * tls_get_tls_unique - Fetch "tls-unique" for channel binding 659 * @conn: Connection context data from tls_connection_init() 660 * @buf: Buffer for returning the value 661 * @max_len: Maximum length of the buffer in bytes 662 * Returns: Number of bytes written to buf or -1 on error 663 * 664 * This function can be used to fetch "tls-unique" (RFC 5929, Section 3) which 665 * is the first TLS Finished message sent in the most recent TLS handshake of 666 * the TLS connection. 667 */ 668 int tls_get_tls_unique(struct tls_connection *conn, u8 *buf, size_t max_len); 669 670 /** 671 * tls_connection_get_cipher_suite - Get current TLS cipher suite 672 * @conn: Connection context data from tls_connection_init() 673 * Returns: TLS cipher suite of the current connection or 0 on error 674 */ 675 u16 tls_connection_get_cipher_suite(struct tls_connection *conn); 676 677 /** 678 * tls_connection_get_peer_subject - Get peer subject 679 * @conn: Connection context data from tls_connection_init() 680 * Returns: Peer subject or %NULL if not authenticated or not available 681 */ 682 const char * tls_connection_get_peer_subject(struct tls_connection *conn); 683 684 /** 685 * tls_connection_get_own_cert_used - Was own certificate used 686 * @conn: Connection context data from tls_connection_init() 687 * Returns: true if own certificate was used during authentication 688 */ 689 bool tls_connection_get_own_cert_used(struct tls_connection *conn); 690 #ifdef LOS_CONFIG_WPA_ENTERPRISE 691 int tls_set_import_cb(ext_wifi_ent_import_callback *cb); 692 #endif /* LOS_CONFIG_WPA_ENTERPRISE */ 693 694 #endif /* TLS_H */ 695