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