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  1. /* ssl/ssl.h */
  2. /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  3. * All rights reserved.
  4. *
  5. * This package is an SSL implementation written
  6. * by Eric Young (eay@cryptsoft.com).
  7. * The implementation was written so as to conform with Netscapes SSL.
  8. *
  9. * This library is free for commercial and non-commercial use as long as
  10. * the following conditions are aheared to. The following conditions
  11. * apply to all code found in this distribution, be it the RC4, RSA,
  12. * lhash, DES, etc., code; not just the SSL code. The SSL documentation
  13. * included with this distribution is covered by the same copyright terms
  14. * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15. *
  16. * Copyright remains Eric Young's, and as such any Copyright notices in
  17. * the code are not to be removed.
  18. * If this package is used in a product, Eric Young should be given attribution
  19. * as the author of the parts of the library used.
  20. * This can be in the form of a textual message at program startup or
  21. * in documentation (online or textual) provided with the package.
  22. *
  23. * Redistribution and use in source and binary forms, with or without
  24. * modification, are permitted provided that the following conditions
  25. * are met:
  26. * 1. Redistributions of source code must retain the copyright
  27. * notice, this list of conditions and the following disclaimer.
  28. * 2. Redistributions in binary form must reproduce the above copyright
  29. * notice, this list of conditions and the following disclaimer in the
  30. * documentation and/or other materials provided with the distribution.
  31. * 3. All advertising materials mentioning features or use of this software
  32. * must display the following acknowledgement:
  33. * "This product includes cryptographic software written by
  34. * Eric Young (eay@cryptsoft.com)"
  35. * The word 'cryptographic' can be left out if the rouines from the library
  36. * being used are not cryptographic related :-).
  37. * 4. If you include any Windows specific code (or a derivative thereof) from
  38. * the apps directory (application code) you must include an acknowledgement:
  39. * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40. *
  41. * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44. * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47. * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50. * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51. * SUCH DAMAGE.
  52. *
  53. * The licence and distribution terms for any publically available version or
  54. * derivative of this code cannot be changed. i.e. this code cannot simply be
  55. * copied and put under another distribution licence
  56. * [including the GNU Public Licence.]
  57. */
  58. /* ====================================================================
  59. * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
  60. *
  61. * Redistribution and use in source and binary forms, with or without
  62. * modification, are permitted provided that the following conditions
  63. * are met:
  64. *
  65. * 1. Redistributions of source code must retain the above copyright
  66. * notice, this list of conditions and the following disclaimer.
  67. *
  68. * 2. Redistributions in binary form must reproduce the above copyright
  69. * notice, this list of conditions and the following disclaimer in
  70. * the documentation and/or other materials provided with the
  71. * distribution.
  72. *
  73. * 3. All advertising materials mentioning features or use of this
  74. * software must display the following acknowledgment:
  75. * "This product includes software developed by the OpenSSL Project
  76. * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77. *
  78. * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79. * endorse or promote products derived from this software without
  80. * prior written permission. For written permission, please contact
  81. * openssl-core@openssl.org.
  82. *
  83. * 5. Products derived from this software may not be called "OpenSSL"
  84. * nor may "OpenSSL" appear in their names without prior written
  85. * permission of the OpenSSL Project.
  86. *
  87. * 6. Redistributions of any form whatsoever must retain the following
  88. * acknowledgment:
  89. * "This product includes software developed by the OpenSSL Project
  90. * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91. *
  92. * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93. * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95. * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96. * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98. * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  100. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  101. * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  102. * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  103. * OF THE POSSIBILITY OF SUCH DAMAGE.
  104. * ====================================================================
  105. *
  106. * This product includes cryptographic software written by Eric Young
  107. * (eay@cryptsoft.com). This product includes software written by Tim
  108. * Hudson (tjh@cryptsoft.com).
  109. *
  110. */
  111. /* ====================================================================
  112. * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
  113. * ECC cipher suite support in OpenSSL originally developed by
  114. * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
  115. */
  116. /* ====================================================================
  117. * Copyright 2005 Nokia. All rights reserved.
  118. *
  119. * The portions of the attached software ("Contribution") is developed by
  120. * Nokia Corporation and is licensed pursuant to the OpenSSL open source
  121. * license.
  122. *
  123. * The Contribution, originally written by Mika Kousa and Pasi Eronen of
  124. * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
  125. * support (see RFC 4279) to OpenSSL.
  126. *
  127. * No patent licenses or other rights except those expressly stated in
  128. * the OpenSSL open source license shall be deemed granted or received
  129. * expressly, by implication, estoppel, or otherwise.
  130. *
  131. * No assurances are provided by Nokia that the Contribution does not
  132. * infringe the patent or other intellectual property rights of any third
  133. * party or that the license provides you with all the necessary rights
  134. * to make use of the Contribution.
  135. *
  136. * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
  137. * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
  138. * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
  139. * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
  140. * OTHERWISE.
  141. */
  142. #ifndef OPENSSL_HEADER_SSL_H
  143. #define OPENSSL_HEADER_SSL_H
  144. #include <openssl/base.h>
  145. #include <openssl/bio.h>
  146. #include <openssl/buf.h>
  147. #include <openssl/hmac.h>
  148. #include <openssl/lhash.h>
  149. #include <openssl/pem.h>
  150. #include <openssl/thread.h>
  151. #include <openssl/x509.h>
  152. #if !defined(OPENSSL_WINDOWS)
  153. #include <sys/time.h>
  154. #endif
  155. /* wpa_supplicant expects to get the version functions from ssl.h */
  156. #include <openssl/crypto.h>
  157. /* Forward-declare struct timeval. On Windows, it is defined in winsock2.h and
  158. * Windows headers define too many macros to be included in public headers.
  159. * However, only a forward declaration is needed. */
  160. struct timeval;
  161. #if defined(__cplusplus)
  162. extern "C" {
  163. #endif
  164. /* SSL implementation. */
  165. /* Initialization. */
  166. /* SSL_library_init initializes the crypto and SSL libraries and returns one. */
  167. OPENSSL_EXPORT int SSL_library_init(void);
  168. /* Cipher suites. */
  169. /* An SSL_CIPHER represents a cipher suite. */
  170. typedef struct ssl_cipher_st {
  171. /* name is the OpenSSL name for the cipher. */
  172. const char *name;
  173. /* id is the cipher suite value bitwise OR-d with 0x03000000. */
  174. uint32_t id;
  175. /* The following are internal fields. See ssl/internal.h for their values. */
  176. uint32_t algorithm_mkey;
  177. uint32_t algorithm_auth;
  178. uint32_t algorithm_enc;
  179. uint32_t algorithm_mac;
  180. uint32_t algorithm_ssl;
  181. uint32_t algo_strength;
  182. uint32_t algorithm_prf;
  183. /* strength_bits is the strength of the cipher in bits. */
  184. int strength_bits;
  185. /* alg_bits is the number of bits of key material used by the algorithm. */
  186. int alg_bits;
  187. } SSL_CIPHER;
  188. DECLARE_STACK_OF(SSL_CIPHER)
  189. /* SSL_get_cipher_by_value returns the structure representing a TLS cipher
  190. * suite based on its assigned number, or NULL if unknown. See
  191. * https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-4. */
  192. OPENSSL_EXPORT const SSL_CIPHER *SSL_get_cipher_by_value(uint16_t value);
  193. /* SSL_CIPHER_get_id returns |cipher|'s id. It may be cast to a |uint16_t| to
  194. * get the cipher suite value. */
  195. OPENSSL_EXPORT uint32_t SSL_CIPHER_get_id(const SSL_CIPHER *cipher);
  196. /* SSL_CIPHER_is_AES returns one if |cipher| uses AES (either GCM or CBC
  197. * mode). */
  198. OPENSSL_EXPORT int SSL_CIPHER_is_AES(const SSL_CIPHER *cipher);
  199. /* SSL_CIPHER_has_MD5_HMAC returns one if |cipher| uses HMAC-MD5. */
  200. OPENSSL_EXPORT int SSL_CIPHER_has_MD5_HMAC(const SSL_CIPHER *cipher);
  201. /* SSL_CIPHER_is_AESGCM returns one if |cipher| uses AES-GCM. */
  202. OPENSSL_EXPORT int SSL_CIPHER_is_AESGCM(const SSL_CIPHER *cipher);
  203. /* SSL_CIPHER_is_CHACHA20POLY1305 returns one if |cipher| uses
  204. * CHACHA20_POLY1305. */
  205. OPENSSL_EXPORT int SSL_CIPHER_is_CHACHA20POLY1305(const SSL_CIPHER *cipher);
  206. /* SSL_CIPHER_get_name returns the OpenSSL name of |cipher|. */
  207. OPENSSL_EXPORT const char *SSL_CIPHER_get_name(const SSL_CIPHER *cipher);
  208. /* SSL_CIPHER_get_kx_name returns a string that describes the key-exchange
  209. * method used by |cipher|. For example, "ECDHE_ECDSA". */
  210. OPENSSL_EXPORT const char *SSL_CIPHER_get_kx_name(const SSL_CIPHER *cipher);
  211. /* SSL_CIPHER_get_rfc_name returns a newly-allocated string with the standard
  212. * name for |cipher| or NULL on error. For example,
  213. * "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256". The caller is responsible for
  214. * calling |OPENSSL_free| on the result. */
  215. OPENSSL_EXPORT char *SSL_CIPHER_get_rfc_name(const SSL_CIPHER *cipher);
  216. /* SSL_CIPHER_get_bits returns the strength, in bits, of |cipher|. If
  217. * |out_alg_bits| is not NULL, it writes the number of bits consumed by the
  218. * symmetric algorithm to |*out_alg_bits|. */
  219. OPENSSL_EXPORT int SSL_CIPHER_get_bits(const SSL_CIPHER *cipher,
  220. int *out_alg_bits);
  221. /* SSL contexts. */
  222. /* An SSL_METHOD selects whether to use TLS or DTLS. */
  223. typedef struct ssl_method_st SSL_METHOD;
  224. /* TLS_method is the |SSL_METHOD| used for TLS (and SSLv3) connections. */
  225. OPENSSL_EXPORT const SSL_METHOD *TLS_method(void);
  226. /* DTLS_method is the |SSL_METHOD| used for DTLS connections. */
  227. OPENSSL_EXPORT const SSL_METHOD *DTLS_method(void);
  228. /* SSL_CTX_new returns a newly-allocated |SSL_CTX| with default settings or NULL
  229. * on error. An |SSL_CTX| manages shared state and configuration between
  230. * multiple TLS or DTLS connections. */
  231. OPENSSL_EXPORT SSL_CTX *SSL_CTX_new(const SSL_METHOD *method);
  232. /* SSL_CTX_free releases memory associated with |ctx|. */
  233. OPENSSL_EXPORT void SSL_CTX_free(SSL_CTX *ctx);
  234. /* SSL connections. */
  235. /* SSL_new returns a newly-allocated |SSL| using |ctx| or NULL on error. An
  236. * |SSL| object represents a single TLS or DTLS connection. It inherits settings
  237. * from |ctx| at the time of creation. Settings may also be individually
  238. * configured on the connection.
  239. *
  240. * On creation, an |SSL| is not configured to be either a client or server. Call
  241. * |SSL_set_connect_state| or |SSL_set_accept_state| to set this. */
  242. OPENSSL_EXPORT SSL *SSL_new(SSL_CTX *ctx);
  243. /* SSL_free releases memory associated with |ssl|. */
  244. OPENSSL_EXPORT void SSL_free(SSL *ssl);
  245. /* SSL_set_connect_state configures |ssl| to be a client. */
  246. OPENSSL_EXPORT void SSL_set_connect_state(SSL *ssl);
  247. /* SSL_set_accept_state configures |ssl| to be a server. */
  248. OPENSSL_EXPORT void SSL_set_accept_state(SSL *ssl);
  249. /* Protocol versions. */
  250. #define DTLS1_VERSION_MAJOR 0xfe
  251. #define SSL3_VERSION_MAJOR 0x03
  252. #define SSL3_VERSION 0x0300
  253. #define TLS1_VERSION 0x0301
  254. #define TLS1_1_VERSION 0x0302
  255. #define TLS1_2_VERSION 0x0303
  256. #define DTLS1_VERSION 0xfeff
  257. #define DTLS1_2_VERSION 0xfefd
  258. /* SSL_CTX_set_min_version sets the minimum protocol version for |ctx| to
  259. * |version|. */
  260. OPENSSL_EXPORT void SSL_CTX_set_min_version(SSL_CTX *ctx, uint16_t version);
  261. /* SSL_CTX_set_max_version sets the maximum protocol version for |ctx| to
  262. * |version|. */
  263. OPENSSL_EXPORT void SSL_CTX_set_max_version(SSL_CTX *ctx, uint16_t version);
  264. /* SSL_set_min_version sets the minimum protocol version for |ssl| to
  265. * |version|. */
  266. OPENSSL_EXPORT void SSL_set_min_version(SSL *ssl, uint16_t version);
  267. /* SSL_set_max_version sets the maximum protocol version for |ssl| to
  268. * |version|. */
  269. OPENSSL_EXPORT void SSL_set_max_version(SSL *ssl, uint16_t version);
  270. /* Options.
  271. *
  272. * Options configure protocol behavior. */
  273. /* SSL_OP_LEGACY_SERVER_CONNECT allows initial connections to servers that don't
  274. * support the renegotiation_info extension (RFC 5746). It is on by default. */
  275. #define SSL_OP_LEGACY_SERVER_CONNECT 0x00000004L
  276. /* SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER allows for record sizes |SSL3_RT_MAX_EXTRA|
  277. * bytes above the maximum record size. */
  278. #define SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER 0x00000020L
  279. /* SSL_OP_TLS_D5_BUG accepts an RSAClientKeyExchange in TLS encoded as in SSL3
  280. * (i.e. without a length prefix). */
  281. #define SSL_OP_TLS_D5_BUG 0x00000100L
  282. /* SSL_OP_ALL enables the above bug workarounds that are enabled by many
  283. * consumers.
  284. * TODO(davidben): Determine which of the remaining may be removed now. */
  285. #define SSL_OP_ALL 0x00000BFFL
  286. /* SSL_OP_NO_QUERY_MTU, in DTLS, disables querying the MTU from the underlying
  287. * |BIO|. Instead, the MTU is configured with |SSL_set_mtu|. */
  288. #define SSL_OP_NO_QUERY_MTU 0x00001000L
  289. /* SSL_OP_NO_TICKET disables session ticket support (RFC 4507). */
  290. #define SSL_OP_NO_TICKET 0x00004000L
  291. /* SSL_OP_CIPHER_SERVER_PREFERENCE configures servers to select ciphers and
  292. * ECDHE curves according to the server's preferences instead of the
  293. * client's. */
  294. #define SSL_OP_CIPHER_SERVER_PREFERENCE 0x00400000L
  295. /* The following flags toggle individual protocol versions. This is deprecated.
  296. * Use |SSL_CTX_set_min_version| and |SSL_CTX_set_max_version| instead. */
  297. #define SSL_OP_NO_SSLv3 0x02000000L
  298. #define SSL_OP_NO_TLSv1 0x04000000L
  299. #define SSL_OP_NO_TLSv1_2 0x08000000L
  300. #define SSL_OP_NO_TLSv1_1 0x10000000L
  301. #define SSL_OP_NO_DTLSv1 SSL_OP_NO_TLSv1
  302. #define SSL_OP_NO_DTLSv1_2 SSL_OP_NO_TLSv1_2
  303. /* The following flags do nothing and are included only to make it easier to
  304. * compile code with BoringSSL. */
  305. #define SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 0
  306. #define SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 0
  307. #define SSL_OP_EPHEMERAL_RSA 0
  308. #define SSL_OP_MICROSOFT_SESS_ID_BUG 0
  309. #define SSL_OP_MSIE_SSLV2_RSA_PADDING 0
  310. #define SSL_OP_NETSCAPE_CA_DN_BUG 0
  311. #define SSL_OP_NETSCAPE_CHALLENGE_BUG 0
  312. #define SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG 0
  313. #define SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG 0
  314. #define SSL_OP_NO_COMPRESSION 0
  315. #define SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION 0
  316. #define SSL_OP_NO_SSLv2 0
  317. #define SSL_OP_PKCS1_CHECK_1 0
  318. #define SSL_OP_PKCS1_CHECK_2 0
  319. #define SSL_OP_SINGLE_DH_USE 0
  320. #define SSL_OP_SINGLE_ECDH_USE 0
  321. #define SSL_OP_SSLEAY_080_CLIENT_DH_BUG 0
  322. #define SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG 0
  323. #define SSL_OP_TLS_BLOCK_PADDING_BUG 0
  324. #define SSL_OP_TLS_ROLLBACK_BUG 0
  325. /* SSL_CTX_set_options enables all options set in |options| (which should be one
  326. * or more of the |SSL_OP_*| values, ORed together) in |ctx|. It returns a
  327. * bitmask representing the resulting enabled options. */
  328. OPENSSL_EXPORT uint32_t SSL_CTX_set_options(SSL_CTX *ctx, uint32_t options);
  329. /* SSL_CTX_clear_options disables all options set in |options| (which should be
  330. * one or more of the |SSL_OP_*| values, ORed together) in |ctx|. It returns a
  331. * bitmask representing the resulting enabled options. */
  332. OPENSSL_EXPORT uint32_t SSL_CTX_clear_options(SSL_CTX *ctx, uint32_t options);
  333. /* SSL_CTX_get_options returns a bitmask of |SSL_OP_*| values that represent all
  334. * the options enabled for |ctx|. */
  335. OPENSSL_EXPORT uint32_t SSL_CTX_get_options(const SSL_CTX *ctx);
  336. /* SSL_set_options enables all options set in |options| (which should be one or
  337. * more of the |SSL_OP_*| values, ORed together) in |ssl|. It returns a bitmask
  338. * representing the resulting enabled options. */
  339. OPENSSL_EXPORT uint32_t SSL_set_options(SSL *ssl, uint32_t options);
  340. /* SSL_clear_options disables all options set in |options| (which should be one
  341. * or more of the |SSL_OP_*| values, ORed together) in |ssl|. It returns a
  342. * bitmask representing the resulting enabled options. */
  343. OPENSSL_EXPORT uint32_t SSL_clear_options(SSL *ssl, uint32_t options);
  344. /* SSL_get_options returns a bitmask of |SSL_OP_*| values that represent all the
  345. * options enabled for |ssl|. */
  346. OPENSSL_EXPORT uint32_t SSL_get_options(const SSL *ssl);
  347. /* Modes.
  348. *
  349. * Modes configure API behavior. */
  350. /* SSL_MODE_ENABLE_PARTIAL_WRITE allows |SSL_write| to complete with a partial
  351. * result when the only part of the input was written in a single record. */
  352. #define SSL_MODE_ENABLE_PARTIAL_WRITE 0x00000001L
  353. /* SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER allows retrying an incomplete |SSL_write|
  354. * with a different buffer. However, |SSL_write| still assumes the buffer
  355. * contents are unchanged. This is not the default to avoid the misconception
  356. * that non-blocking |SSL_write| behaves like non-blocking |write|. */
  357. #define SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER 0x00000002L
  358. /* SSL_MODE_NO_AUTO_CHAIN disables automatically building a certificate chain
  359. * before sending certificates to the peer.
  360. * TODO(davidben): Remove this behavior. https://crbug.com/486295. */
  361. #define SSL_MODE_NO_AUTO_CHAIN 0x00000008L
  362. /* SSL_MODE_ENABLE_FALSE_START allows clients to send application data before
  363. * receipt of CCS and Finished. This mode enables full-handshakes to 'complete'
  364. * in one RTT. See draft-bmoeller-tls-falsestart-01. */
  365. #define SSL_MODE_ENABLE_FALSE_START 0x00000080L
  366. /* Deprecated: SSL_MODE_HANDSHAKE_CUTTHROUGH is the same as
  367. * SSL_MODE_ENABLE_FALSE_START. */
  368. #define SSL_MODE_HANDSHAKE_CUTTHROUGH SSL_MODE_ENABLE_FALSE_START
  369. /* SSL_MODE_CBC_RECORD_SPLITTING causes multi-byte CBC records in SSL 3.0 and
  370. * TLS 1.0 to be split in two: the first record will contain a single byte and
  371. * the second will contain the remainder. This effectively randomises the IV and
  372. * prevents BEAST attacks. */
  373. #define SSL_MODE_CBC_RECORD_SPLITTING 0x00000100L
  374. /* SSL_MODE_NO_SESSION_CREATION will cause any attempts to create a session to
  375. * fail with SSL_R_SESSION_MAY_NOT_BE_CREATED. This can be used to enforce that
  376. * session resumption is used for a given SSL*. */
  377. #define SSL_MODE_NO_SESSION_CREATION 0x00000200L
  378. /* SSL_MODE_SEND_FALLBACK_SCSV sends TLS_FALLBACK_SCSV in the ClientHello.
  379. * To be set only by applications that reconnect with a downgraded protocol
  380. * version; see RFC 7507 for details.
  381. *
  382. * DO NOT ENABLE THIS if your application attempts a normal handshake. Only use
  383. * this in explicit fallback retries, following the guidance in RFC 7507. */
  384. #define SSL_MODE_SEND_FALLBACK_SCSV 0x00000400L
  385. /* The following flags do nothing and are included only to make it easier to
  386. * compile code with BoringSSL. */
  387. #define SSL_MODE_AUTO_RETRY 0
  388. #define SSL_MODE_RELEASE_BUFFERS 0
  389. #define SSL_MODE_SEND_CLIENTHELLO_TIME 0
  390. #define SSL_MODE_SEND_SERVERHELLO_TIME 0
  391. /* SSL_CTX_set_mode enables all modes set in |mode| (which should be one or more
  392. * of the |SSL_MODE_*| values, ORed together) in |ctx|. It returns a bitmask
  393. * representing the resulting enabled modes. */
  394. OPENSSL_EXPORT uint32_t SSL_CTX_set_mode(SSL_CTX *ctx, uint32_t mode);
  395. /* SSL_CTX_clear_mode disables all modes set in |mode| (which should be one or
  396. * more of the |SSL_MODE_*| values, ORed together) in |ctx|. It returns a
  397. * bitmask representing the resulting enabled modes. */
  398. OPENSSL_EXPORT uint32_t SSL_CTX_clear_mode(SSL_CTX *ctx, uint32_t mode);
  399. /* SSL_CTX_get_mode returns a bitmask of |SSL_MODE_*| values that represent all
  400. * the modes enabled for |ssl|. */
  401. OPENSSL_EXPORT uint32_t SSL_CTX_get_mode(const SSL_CTX *ctx);
  402. /* SSL_set_mode enables all modes set in |mode| (which should be one or more of
  403. * the |SSL_MODE_*| values, ORed together) in |ssl|. It returns a bitmask
  404. * representing the resulting enabled modes. */
  405. OPENSSL_EXPORT uint32_t SSL_set_mode(SSL *ssl, uint32_t mode);
  406. /* SSL_clear_mode disables all modes set in |mode| (which should be one or more
  407. * of the |SSL_MODE_*| values, ORed together) in |ssl|. It returns a bitmask
  408. * representing the resulting enabled modes. */
  409. OPENSSL_EXPORT uint32_t SSL_clear_mode(SSL *ssl, uint32_t mode);
  410. /* SSL_get_mode returns a bitmask of |SSL_MODE_*| values that represent all the
  411. * modes enabled for |ssl|. */
  412. OPENSSL_EXPORT uint32_t SSL_get_mode(const SSL *ssl);
  413. /* Configuring certificates and private keys.
  414. *
  415. * These functions configure the connection's leaf certificate, private key, and
  416. * certificate chain. The certificate chain is ordered leaf to root (as sent on
  417. * the wire) but does not include the leaf. Both client and server certificates
  418. * use these functions.
  419. *
  420. * Certificates and keys may be configured before the handshake or dynamically
  421. * in the early callback and certificate callback. */
  422. /* SSL_CTX_use_certificate sets |ctx|'s leaf certificate to |x509|. It returns
  423. * one on success and zero on failure. */
  424. OPENSSL_EXPORT int SSL_CTX_use_certificate(SSL_CTX *ctx, X509 *x509);
  425. /* SSL_use_certificate sets |ssl|'s leaf certificate to |x509|. It returns one
  426. * on success and zero on failure. */
  427. OPENSSL_EXPORT int SSL_use_certificate(SSL *ssl, X509 *x509);
  428. /* SSL_CTX_use_PrivateKey sets |ctx|'s private key to |pkey|. It returns one on
  429. * success and zero on failure. */
  430. OPENSSL_EXPORT int SSL_CTX_use_PrivateKey(SSL_CTX *ctx, EVP_PKEY *pkey);
  431. /* SSL_use_PrivateKey sets |ssl|'s private key to |pkey|. It returns one on
  432. * success and zero on failure. */
  433. OPENSSL_EXPORT int SSL_use_PrivateKey(SSL *ssl, EVP_PKEY *pkey);
  434. /* SSL_CTX_set0_chain sets |ctx|'s certificate chain, excluding the leaf, to
  435. * |chain|. On success, it returns one and takes ownership of |chain|.
  436. * Otherwise, it returns zero. */
  437. OPENSSL_EXPORT int SSL_CTX_set0_chain(SSL_CTX *ctx, STACK_OF(X509) *chain);
  438. /* SSL_CTX_set1_chain sets |ctx|'s certificate chain, excluding the leaf, to
  439. * |chain|. It returns one on success and zero on failure. The caller retains
  440. * ownership of |chain| and may release it freely. */
  441. OPENSSL_EXPORT int SSL_CTX_set1_chain(SSL_CTX *ctx, STACK_OF(X509) *chain);
  442. /* SSL_set0_chain sets |ssl|'s certificate chain, excluding the leaf, to
  443. * |chain|. On success, it returns one and takes ownership of |chain|.
  444. * Otherwise, it returns zero. */
  445. OPENSSL_EXPORT int SSL_set0_chain(SSL *ssl, STACK_OF(X509) *chain);
  446. /* SSL_set1_chain sets |ssl|'s certificate chain, excluding the leaf, to
  447. * |chain|. It returns one on success and zero on failure. The caller retains
  448. * ownership of |chain| and may release it freely. */
  449. OPENSSL_EXPORT int SSL_set1_chain(SSL *ssl, STACK_OF(X509) *chain);
  450. /* SSL_CTX_add0_chain_cert appends |x509| to |ctx|'s certificate chain. On
  451. * success, it returns one and takes ownership of |x509|. Otherwise, it returns
  452. * zero. */
  453. OPENSSL_EXPORT int SSL_CTX_add0_chain_cert(SSL_CTX *ctx, X509 *x509);
  454. /* SSL_CTX_add1_chain_cert appends |x509| to |ctx|'s certificate chain. It
  455. * returns one on success and zero on failure. The caller retains ownership of
  456. * |x509| and may release it freely. */
  457. OPENSSL_EXPORT int SSL_CTX_add1_chain_cert(SSL_CTX *ctx, X509 *x509);
  458. /* SSL_add0_chain_cert appends |x509| to |ctx|'s certificate chain. On success,
  459. * it returns one and takes ownership of |x509|. Otherwise, it returns zero. */
  460. OPENSSL_EXPORT int SSL_add0_chain_cert(SSL *ssl, X509 *x509);
  461. /* SSL_CTX_add_extra_chain_cert calls |SSL_CTX_add0_chain_cert|. */
  462. OPENSSL_EXPORT int SSL_CTX_add_extra_chain_cert(SSL_CTX *ctx, X509 *x509);
  463. /* SSL_add1_chain_cert appends |x509| to |ctx|'s certificate chain. It returns
  464. * one on success and zero on failure. The caller retains ownership of |x509|
  465. * and may release it freely. */
  466. OPENSSL_EXPORT int SSL_add1_chain_cert(SSL *ssl, X509 *x509);
  467. /* SSL_CTX_clear_chain_certs clears |ctx|'s certificate chain and returns
  468. * one. */
  469. OPENSSL_EXPORT int SSL_CTX_clear_chain_certs(SSL_CTX *ctx);
  470. /* SSL_CTX_clear_extra_chain_certs calls |SSL_CTX_clear_chain_certs|. */
  471. OPENSSL_EXPORT int SSL_CTX_clear_extra_chain_certs(SSL_CTX *ctx);
  472. /* SSL_clear_chain_certs clears |ssl|'s certificate chain and returns one. */
  473. OPENSSL_EXPORT int SSL_clear_chain_certs(SSL *ssl);
  474. /* SSL_CTX_set_cert_cb sets a callback that is called to select a certificate.
  475. * The callback returns one on success, zero on internal error, and a negative
  476. * number on failure or to pause the handshake. If the handshake is paused,
  477. * |SSL_get_error| will return |SSL_ERROR_WANT_X509_LOOKUP|. */
  478. OPENSSL_EXPORT void SSL_CTX_set_cert_cb(SSL_CTX *ctx,
  479. int (*cb)(SSL *ssl, void *arg),
  480. void *arg);
  481. /* SSL_set_cert_cb sets a callback that is called to select a certificate. The
  482. * callback returns one on success, zero on internal error, and a negative
  483. * number on failure or to pause the handshake. If the handshake is paused,
  484. * |SSL_get_error| will return |SSL_ERROR_WANT_X509_LOOKUP|. */
  485. OPENSSL_EXPORT void SSL_set_cert_cb(SSL *ssl, int (*cb)(SSL *ssl, void *arg),
  486. void *arg);
  487. /* SSL_certs_clear resets the private key, leaf certificate, and certificate
  488. * chain of |ssl|. */
  489. OPENSSL_EXPORT void SSL_certs_clear(SSL *ssl);
  490. /* SSL_CTX_check_private_key returns one if the certificate and private key
  491. * configured in |ctx| are consistent and zero otherwise. */
  492. OPENSSL_EXPORT int SSL_CTX_check_private_key(const SSL_CTX *ctx);
  493. /* SSL_check_private_key returns one if the certificate and private key
  494. * configured in |ssl| are consistent and zero otherwise. */
  495. OPENSSL_EXPORT int SSL_check_private_key(const SSL *ssl);
  496. /* SSL_CTX_get0_certificate returns |ctx|'s leaf certificate. */
  497. OPENSSL_EXPORT X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx);
  498. /* SSL_get_certificate returns |ssl|'s leaf certificate. */
  499. OPENSSL_EXPORT X509 *SSL_get_certificate(const SSL *ssl);
  500. /* SSL_CTX_get0_privatekey returns |ctx|'s private key. */
  501. OPENSSL_EXPORT EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx);
  502. /* SSL_get_privatekey returns |ssl|'s private key. */
  503. OPENSSL_EXPORT EVP_PKEY *SSL_get_privatekey(const SSL *ssl);
  504. /* SSL_CTX_get0_chain_certs sets |*out_chain| to |ctx|'s certificate chain and
  505. * returns one. */
  506. OPENSSL_EXPORT int SSL_CTX_get0_chain_certs(const SSL_CTX *ctx,
  507. STACK_OF(X509) **out_chain);
  508. /* SSL_CTX_get_extra_chain_certs calls |SSL_CTX_get0_chain_certs|. */
  509. OPENSSL_EXPORT int SSL_CTX_get_extra_chain_certs(const SSL_CTX *ctx,
  510. STACK_OF(X509) **out_chain);
  511. /* SSL_get0_chain_certs sets |*out_chain| to |ssl|'s certificate chain and
  512. * returns one. */
  513. OPENSSL_EXPORT int SSL_get0_chain_certs(const SSL *ssl,
  514. STACK_OF(X509) **out_chain);
  515. /* SSL_CTX_set_ocsp_response sets the OCSP reponse that is sent to clients
  516. * which request it. It returns one on success and zero on error. The caller
  517. * retains ownership of |response|. */
  518. OPENSSL_EXPORT int SSL_CTX_set_ocsp_response(SSL_CTX *ctx,
  519. const uint8_t *response,
  520. size_t response_len);
  521. /* Certificate and private key convenience functions. */
  522. /* SSL_CTX_use_RSAPrivateKey sets |ctx|'s private key to |rsa|. It returns one
  523. * on success and zero on failure. */
  524. OPENSSL_EXPORT int SSL_CTX_use_RSAPrivateKey(SSL_CTX *ctx, RSA *rsa);
  525. /* SSL_use_RSAPrivateKey sets |ctx|'s private key to |rsa|. It returns one on
  526. * success and zero on failure. */
  527. OPENSSL_EXPORT int SSL_use_RSAPrivateKey(SSL *ssl, RSA *rsa);
  528. /* The following functions configure certificates or private keys but take as
  529. * input DER-encoded structures. They return one on success and zero on
  530. * failure. */
  531. OPENSSL_EXPORT int SSL_CTX_use_certificate_ASN1(SSL_CTX *ctx, int len,
  532. const uint8_t *d);
  533. OPENSSL_EXPORT int SSL_use_certificate_ASN1(SSL *ssl, const uint8_t *der,
  534. int len);
  535. OPENSSL_EXPORT int SSL_CTX_use_PrivateKey_ASN1(int pk, SSL_CTX *ctx,
  536. const uint8_t *d, long len);
  537. OPENSSL_EXPORT int SSL_use_PrivateKey_ASN1(int type, SSL *ssl,
  538. const uint8_t *d, long len);
  539. OPENSSL_EXPORT int SSL_CTX_use_RSAPrivateKey_ASN1(SSL_CTX *ctx,
  540. const uint8_t *der,
  541. size_t der_len);
  542. OPENSSL_EXPORT int SSL_use_RSAPrivateKey_ASN1(SSL *ssl, const uint8_t *der,
  543. size_t der_len);
  544. /* The following functions configure certificates or private keys but take as
  545. * input files to read from. They return one on success and zero on failure. The
  546. * |type| parameter is one of the |SSL_FILETYPE_*| values and determines whether
  547. * the file's contents are read as PEM or DER. */
  548. #define SSL_FILETYPE_ASN1 X509_FILETYPE_ASN1
  549. #define SSL_FILETYPE_PEM X509_FILETYPE_PEM
  550. OPENSSL_EXPORT int SSL_CTX_use_RSAPrivateKey_file(SSL_CTX *ctx,
  551. const char *file,
  552. int type);
  553. OPENSSL_EXPORT int SSL_use_RSAPrivateKey_file(SSL *ssl, const char *file,
  554. int type);
  555. OPENSSL_EXPORT int SSL_CTX_use_certificate_file(SSL_CTX *ctx, const char *file,
  556. int type);
  557. OPENSSL_EXPORT int SSL_use_certificate_file(SSL *ssl, const char *file,
  558. int type);
  559. OPENSSL_EXPORT int SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char *file,
  560. int type);
  561. OPENSSL_EXPORT int SSL_use_PrivateKey_file(SSL *ssl, const char *file,
  562. int type);
  563. /* SSL_CTX_use_certificate_file configures certificates for |ctx|. It reads the
  564. * contents of |file| as a PEM-encoded leaf certificate followed optionally by
  565. * the certificate chain to send to the peer. It returns one on success and zero
  566. * on failure. */
  567. OPENSSL_EXPORT int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx,
  568. const char *file);
  569. /* Custom private keys. */
  570. enum ssl_private_key_result_t {
  571. ssl_private_key_success,
  572. ssl_private_key_retry,
  573. ssl_private_key_failure,
  574. };
  575. /* SSL_PRIVATE_KEY_METHOD describes private key hooks. This is used to off-load
  576. * signing operations to a custom, potentially asynchronous, backend. */
  577. typedef struct ssl_private_key_method_st {
  578. /* type returns either |EVP_PKEY_RSA| or |EVP_PKEY_EC| to denote the type of
  579. * key used by |ssl|. */
  580. int (*type)(SSL *ssl);
  581. /* supports_digest returns one if the key used by |ssl| supports signing
  582. * digests of type |md| and zero otherwise. */
  583. int (*supports_digest)(SSL *ssl, const EVP_MD *md);
  584. /* max_signature_len returns the maximum length of a signature signed by the
  585. * key used by |ssl|. This must be a constant value for a given |ssl|. */
  586. size_t (*max_signature_len)(SSL *ssl);
  587. /* sign signs |in_len| bytes of digest from |in|. |md| is the hash function
  588. * used to calculate |in|. On success, it returns |ssl_private_key_success|
  589. * and writes at most |max_out| bytes of signature data to |out|. On failure,
  590. * it returns |ssl_private_key_failure|. If the operation has not completed,
  591. * it returns |ssl_private_key_retry|. |sign| should arrange for the
  592. * high-level operation on |ssl| to be retried when the operation is
  593. * completed. This will result in a call to |sign_complete|.
  594. *
  595. * If the key is an RSA key, implementations must use PKCS#1 padding. |in| is
  596. * the digest itself, so the DigestInfo prefix, if any, must be prepended by
  597. * |sign|. If |md| is |EVP_md5_sha1|, there is no prefix.
  598. *
  599. * It is an error to call |sign| while another private key operation is in
  600. * progress on |ssl|. */
  601. enum ssl_private_key_result_t (*sign)(SSL *ssl, uint8_t *out, size_t *out_len,
  602. size_t max_out, const EVP_MD *md,
  603. const uint8_t *in, size_t in_len);
  604. /* sign_complete completes a pending |sign| operation. If the operation has
  605. * completed, it returns |ssl_private_key_success| and writes the result to
  606. * |out| as in |sign|. Otherwise, it returns |ssl_private_key_failure| on
  607. * failure and |ssl_private_key_retry| if the operation is still in progress.
  608. *
  609. * |sign_complete| may be called arbitrarily many times before completion, but
  610. * it is an error to call |sign_complete| if there is no pending |sign|
  611. * operation in progress on |ssl|. */
  612. enum ssl_private_key_result_t (*sign_complete)(SSL *ssl, uint8_t *out,
  613. size_t *out_len, size_t max_out);
  614. } SSL_PRIVATE_KEY_METHOD;
  615. /* SSL_use_private_key_method configures a custom private key on |ssl|.
  616. * |key_method| must remain valid for the lifetime of |ssl|. */
  617. OPENSSL_EXPORT void SSL_set_private_key_method(
  618. SSL *ssl, const SSL_PRIVATE_KEY_METHOD *key_method);
  619. /* Connection information. */
  620. /* SSL_get_tls_unique writes at most |max_out| bytes of the tls-unique value
  621. * for |ssl| to |out| and sets |*out_len| to the number of bytes written. It
  622. * returns one on success or zero on error. In general |max_out| should be at
  623. * least 12.
  624. *
  625. * This function will always fail if the initial handshake has not completed.
  626. * The tls-unique value will change after a renegotiation but, since
  627. * renegotiations can be initiated by the server at any point, the higher-level
  628. * protocol must either leave them disabled or define states in which the
  629. * tls-unique value can be read.
  630. *
  631. * The tls-unique value is defined by
  632. * https://tools.ietf.org/html/rfc5929#section-3.1. Due to a weakness in the
  633. * TLS protocol, tls-unique is broken for resumed connections unless the
  634. * Extended Master Secret extension is negotiated. Thus this function will
  635. * return zero if |ssl| performed session resumption unless EMS was used when
  636. * negotiating the original session. */
  637. OPENSSL_EXPORT int SSL_get_tls_unique(const SSL *ssl, uint8_t *out,
  638. size_t *out_len, size_t max_out);
  639. /* Custom extensions.
  640. *
  641. * The custom extension functions allow TLS extensions to be added to
  642. * ClientHello and ServerHello messages. */
  643. /* SSL_custom_ext_add_cb is a callback function that is called when the
  644. * ClientHello (for clients) or ServerHello (for servers) is constructed. In
  645. * the case of a server, this callback will only be called for a given
  646. * extension if the ClientHello contained that extension – it's not possible to
  647. * inject extensions into a ServerHello that the client didn't request.
  648. *
  649. * When called, |extension_value| will contain the extension number that is
  650. * being considered for addition (so that a single callback can handle multiple
  651. * extensions). If the callback wishes to include the extension, it must set
  652. * |*out| to point to |*out_len| bytes of extension contents and return one. In
  653. * this case, the corresponding |SSL_custom_ext_free_cb| callback will later be
  654. * called with the value of |*out| once that data has been copied.
  655. *
  656. * If the callback does not wish to add an extension it must return zero.
  657. *
  658. * Alternatively, the callback can abort the connection by setting
  659. * |*out_alert_value| to a TLS alert number and returning -1. */
  660. typedef int (*SSL_custom_ext_add_cb)(SSL *ssl, unsigned extension_value,
  661. const uint8_t **out, size_t *out_len,
  662. int *out_alert_value, void *add_arg);
  663. /* SSL_custom_ext_free_cb is a callback function that is called by OpenSSL iff
  664. * an |SSL_custom_ext_add_cb| callback previously returned one. In that case,
  665. * this callback is called and passed the |out| pointer that was returned by
  666. * the add callback. This is to free any dynamically allocated data created by
  667. * the add callback. */
  668. typedef void (*SSL_custom_ext_free_cb)(SSL *ssl, unsigned extension_value,
  669. const uint8_t *out, void *add_arg);
  670. /* SSL_custom_ext_parse_cb is a callback function that is called by OpenSSL to
  671. * parse an extension from the peer: that is from the ServerHello for a client
  672. * and from the ClientHello for a server.
  673. *
  674. * When called, |extension_value| will contain the extension number and the
  675. * contents of the extension are |contents_len| bytes at |contents|.
  676. *
  677. * The callback must return one to continue the handshake. Otherwise, if it
  678. * returns zero, a fatal alert with value |*out_alert_value| is sent and the
  679. * handshake is aborted. */
  680. typedef int (*SSL_custom_ext_parse_cb)(SSL *ssl, unsigned extension_value,
  681. const uint8_t *contents,
  682. size_t contents_len,
  683. int *out_alert_value, void *parse_arg);
  684. /* SSL_extension_supported returns one iff OpenSSL internally handles
  685. * extensions of type |extension_value|. This can be used to avoid registering
  686. * custom extension handlers for extensions that a future version of OpenSSL
  687. * may handle internally. */
  688. OPENSSL_EXPORT int SSL_extension_supported(unsigned extension_value);
  689. /* SSL_CTX_add_client_custom_ext registers callback functions for handling
  690. * custom TLS extensions for client connections.
  691. *
  692. * If |add_cb| is NULL then an empty extension will be added in each
  693. * ClientHello. Otherwise, see the comment for |SSL_custom_ext_add_cb| about
  694. * this callback.
  695. *
  696. * The |free_cb| may be NULL if |add_cb| doesn't dynamically allocate data that
  697. * needs to be freed.
  698. *
  699. * It returns one on success or zero on error. It's always an error to register
  700. * callbacks for the same extension twice, or to register callbacks for an
  701. * extension that OpenSSL handles internally. See |SSL_extension_supported| to
  702. * discover, at runtime, which extensions OpenSSL handles internally. */
  703. OPENSSL_EXPORT int SSL_CTX_add_client_custom_ext(
  704. SSL_CTX *ctx, unsigned extension_value, SSL_custom_ext_add_cb add_cb,
  705. SSL_custom_ext_free_cb free_cb, void *add_arg,
  706. SSL_custom_ext_parse_cb parse_cb, void *parse_arg);
  707. /* SSL_CTX_add_server_custom_ext is the same as
  708. * |SSL_CTX_add_client_custom_ext|, but for server connections.
  709. *
  710. * Unlike on the client side, if |add_cb| is NULL no extension will be added.
  711. * The |add_cb|, if any, will only be called if the ClientHello contained a
  712. * matching extension. */
  713. OPENSSL_EXPORT int SSL_CTX_add_server_custom_ext(
  714. SSL_CTX *ctx, unsigned extension_value, SSL_custom_ext_add_cb add_cb,
  715. SSL_custom_ext_free_cb free_cb, void *add_arg,
  716. SSL_custom_ext_parse_cb parse_cb, void *parse_arg);
  717. /* Session tickets. */
  718. /* SSL_CTX_get_tlsext_ticket_keys writes |ctx|'s session ticket key material to
  719. * |len| bytes of |out|. It returns one on success and zero if |len| is not
  720. * 48. If |out| is NULL, it returns 48 instead. */
  721. OPENSSL_EXPORT int SSL_CTX_get_tlsext_ticket_keys(SSL_CTX *ctx, void *out,
  722. size_t len);
  723. /* SSL_CTX_set_tlsext_ticket_keys sets |ctx|'s session ticket key material to
  724. * |len| bytes of |in|. It returns one on success and zero if |len| is not
  725. * 48. If |in| is NULL, it returns 48 instead. */
  726. OPENSSL_EXPORT int SSL_CTX_set_tlsext_ticket_keys(SSL_CTX *ctx, const void *in,
  727. size_t len);
  728. /* SSL_TICKET_KEY_NAME_LEN is the length of the key name prefix of a session
  729. * ticket. */
  730. #define SSL_TICKET_KEY_NAME_LEN 16
  731. /* SSL_CTX_set_tlsext_ticket_key_cb sets the ticket callback to |callback| and
  732. * returns one. |callback| will be called when encrypting a new ticket and when
  733. * decrypting a ticket from the client.
  734. *
  735. * In both modes, |ctx| and |hmac_ctx| will already have been initialized with
  736. * |EVP_CIPHER_CTX_init| and |HMAC_CTX_init|, respectively. |callback|
  737. * configures |hmac_ctx| with an HMAC digest and key, and configures |ctx|
  738. * for encryption or decryption, based on the mode.
  739. *
  740. * When encrypting a new ticket, |encrypt| will be one. It writes a public
  741. * 16-byte key name to |key_name| and a fresh IV to |iv|. The output IV length
  742. * must match |EVP_CIPHER_CTX_iv_length| of the cipher selected. In this mode,
  743. * |callback| returns 1 on success and -1 on error.
  744. *
  745. * When decrypting a ticket, |encrypt| will be zero. |key_name| will point to a
  746. * 16-byte key name and |iv| points to an IV. The length of the IV consumed must
  747. * match |EVP_CIPHER_CTX_iv_length| of the cipher selected. In this mode,
  748. * |callback| returns -1 to abort the handshake, 0 if decrypting the ticket
  749. * failed, and 1 or 2 on success. If it returns 2, the ticket will be renewed.
  750. * This may be used to re-key the ticket.
  751. *
  752. * WARNING: |callback| wildly breaks the usual return value convention and is
  753. * called in two different modes. */
  754. OPENSSL_EXPORT int SSL_CTX_set_tlsext_ticket_key_cb(
  755. SSL_CTX *ctx, int (*callback)(SSL *ssl, uint8_t *key_name, uint8_t *iv,
  756. EVP_CIPHER_CTX *ctx, HMAC_CTX *hmac_ctx,
  757. int encrypt));
  758. /* Underdocumented functions.
  759. *
  760. * Functions below here haven't been touched up and may be underdocumented. */
  761. /* SSLeay version number for ASN.1 encoding of the session information */
  762. /* Version 0 - initial version
  763. * Version 1 - added the optional peer certificate. */
  764. #define SSL_SESSION_ASN1_VERSION 0x0001
  765. #define SSL_MAX_SSL_SESSION_ID_LENGTH 32
  766. #define SSL_MAX_SID_CTX_LENGTH 32
  767. #define SSL_MAX_MASTER_KEY_LENGTH 48
  768. /* These are used to specify which ciphers to use and not to use */
  769. #define SSL_TXT_MEDIUM "MEDIUM"
  770. #define SSL_TXT_HIGH "HIGH"
  771. #define SSL_TXT_FIPS "FIPS"
  772. #define SSL_TXT_kRSA "kRSA"
  773. #define SSL_TXT_kDHE "kDHE"
  774. #define SSL_TXT_kEDH "kEDH" /* same as "kDHE" */
  775. #define SSL_TXT_kECDHE "kECDHE"
  776. #define SSL_TXT_kEECDH "kEECDH" /* same as "kECDHE" */
  777. #define SSL_TXT_kPSK "kPSK"
  778. #define SSL_TXT_aRSA "aRSA"
  779. #define SSL_TXT_aECDSA "aECDSA"
  780. #define SSL_TXT_aPSK "aPSK"
  781. #define SSL_TXT_DH "DH"
  782. #define SSL_TXT_DHE "DHE" /* same as "kDHE" */
  783. #define SSL_TXT_EDH "EDH" /* same as "DHE" */
  784. #define SSL_TXT_RSA "RSA"
  785. #define SSL_TXT_ECDH "ECDH"
  786. #define SSL_TXT_ECDHE "ECDHE" /* same as "kECDHE" */
  787. #define SSL_TXT_EECDH "EECDH" /* same as "ECDHE" */
  788. #define SSL_TXT_ECDSA "ECDSA"
  789. #define SSL_TXT_PSK "PSK"
  790. #define SSL_TXT_3DES "3DES"
  791. #define SSL_TXT_RC4 "RC4"
  792. #define SSL_TXT_AES128 "AES128"
  793. #define SSL_TXT_AES256 "AES256"
  794. #define SSL_TXT_AES "AES"
  795. #define SSL_TXT_AES_GCM "AESGCM"
  796. #define SSL_TXT_CHACHA20 "CHACHA20"
  797. #define SSL_TXT_MD5 "MD5"
  798. #define SSL_TXT_SHA1 "SHA1"
  799. #define SSL_TXT_SHA "SHA" /* same as "SHA1" */
  800. #define SSL_TXT_SHA256 "SHA256"
  801. #define SSL_TXT_SHA384 "SHA384"
  802. #define SSL_TXT_SSLV3 "SSLv3"
  803. #define SSL_TXT_TLSV1 "TLSv1"
  804. #define SSL_TXT_TLSV1_1 "TLSv1.1"
  805. #define SSL_TXT_TLSV1_2 "TLSv1.2"
  806. #define SSL_TXT_ALL "ALL"
  807. /* COMPLEMENTOF* definitions. These identifiers are used to (de-select) ciphers
  808. * normally not being used.
  809. *
  810. * Example: "RC4" will activate all ciphers using RC4 including ciphers without
  811. * authentication, which would normally disabled by DEFAULT (due the "!ADH"
  812. * being part of default). Therefore "RC4:!COMPLEMENTOFDEFAULT" will make sure
  813. * that it is also disabled in the specific selection. COMPLEMENTOF*
  814. * identifiers are portable between version, as adjustments to the default
  815. * cipher setup will also be included here.
  816. *
  817. * COMPLEMENTOFDEFAULT does not experience the same special treatment that
  818. * DEFAULT gets, as only selection is being done and no sorting as needed for
  819. * DEFAULT. */
  820. #define SSL_TXT_CMPDEF "COMPLEMENTOFDEFAULT"
  821. /* The following cipher list is used by default. It also is substituted when an
  822. * application-defined cipher list string starts with 'DEFAULT'. */
  823. #define SSL_DEFAULT_CIPHER_LIST "ALL"
  824. /* As of OpenSSL 1.0.0, ssl_create_cipher_list() in ssl/ssl_ciph.c always
  825. * starts with a reasonable order, and all we have to do for DEFAULT is
  826. * throwing out anonymous and unencrypted ciphersuites! (The latter are not
  827. * actually enabled by ALL, but "ALL:RSA" would enable some of them.) */
  828. /* Used in SSL_set_shutdown()/SSL_get_shutdown(); */
  829. #define SSL_SENT_SHUTDOWN 1
  830. #define SSL_RECEIVED_SHUTDOWN 2
  831. typedef struct ssl_protocol_method_st SSL_PROTOCOL_METHOD;
  832. typedef struct ssl_session_st SSL_SESSION;
  833. typedef struct ssl_conf_ctx_st SSL_CONF_CTX;
  834. typedef struct ssl3_enc_method SSL3_ENC_METHOD;
  835. /* SRTP protection profiles for use with the use_srtp extension (RFC 5764). */
  836. typedef struct srtp_protection_profile_st {
  837. const char *name;
  838. unsigned long id;
  839. } SRTP_PROTECTION_PROFILE;
  840. DECLARE_STACK_OF(SRTP_PROTECTION_PROFILE)
  841. /* An SSL_SESSION represents an SSL session that may be resumed in an
  842. * abbreviated handshake. */
  843. struct ssl_session_st {
  844. int ssl_version; /* what ssl version session info is being kept in here? */
  845. int master_key_length;
  846. uint8_t master_key[SSL_MAX_MASTER_KEY_LENGTH];
  847. /* session_id - valid? */
  848. unsigned int session_id_length;
  849. uint8_t session_id[SSL_MAX_SSL_SESSION_ID_LENGTH];
  850. /* this is used to determine whether the session is being reused in
  851. * the appropriate context. It is up to the application to set this,
  852. * via SSL_new */
  853. unsigned int sid_ctx_length;
  854. uint8_t sid_ctx[SSL_MAX_SID_CTX_LENGTH];
  855. char *psk_identity;
  856. /* Used to indicate that session resumption is not allowed. Applications can
  857. * also set this bit for a new session via not_resumable_session_cb to
  858. * disable session caching and tickets. */
  859. int not_resumable;
  860. /* peer is the peer's certificate. */
  861. X509 *peer;
  862. /* cert_chain is the certificate chain sent by the peer. NOTE: for historical
  863. * reasons, when a client (so the peer is a server), the chain includes
  864. * |peer|, but when a server it does not. */
  865. STACK_OF(X509) *cert_chain;
  866. /* when app_verify_callback accepts a session where the peer's certificate is
  867. * not ok, we must remember the error for session reuse: */
  868. long verify_result; /* only for servers */
  869. CRYPTO_refcount_t references;
  870. long timeout;
  871. long time;
  872. const SSL_CIPHER *cipher;
  873. /* key_exchange_info contains an indication of the size of the asymmetric
  874. * primitive used in the handshake that created this session. In the event
  875. * that two asymmetric operations are used, this value applies to the one
  876. * that controls the confidentiality of the connection. Its interpretation
  877. * depends on the primitive that was used; as specified by the cipher suite:
  878. * DHE: the size, in bits, of the multiplicative group.
  879. * RSA: the size, in bits, of the modulus.
  880. * ECDHE: the TLS id for the curve.
  881. *
  882. * A zero indicates that the value is unknown. */
  883. uint32_t key_exchange_info;
  884. CRYPTO_EX_DATA ex_data; /* application specific data */
  885. /* These are used to make removal of session-ids more efficient and to
  886. * implement a maximum cache size. */
  887. SSL_SESSION *prev, *next;
  888. char *tlsext_hostname;
  889. /* RFC4507 info */
  890. uint8_t *tlsext_tick; /* Session ticket */
  891. size_t tlsext_ticklen; /* Session ticket length */
  892. uint32_t tlsext_tick_lifetime_hint; /* Session lifetime hint in seconds */
  893. size_t tlsext_signed_cert_timestamp_list_length;
  894. uint8_t *tlsext_signed_cert_timestamp_list; /* Server's list. */
  895. /* The OCSP response that came with the session. */
  896. size_t ocsp_response_length;
  897. uint8_t *ocsp_response;
  898. char peer_sha256_valid; /* Non-zero if peer_sha256 is valid */
  899. uint8_t
  900. peer_sha256[SHA256_DIGEST_LENGTH]; /* SHA256 of peer certificate */
  901. /* original_handshake_hash contains the handshake hash (either SHA-1+MD5 or
  902. * SHA-2, depending on TLS version) for the original, full handshake that
  903. * created a session. This is used by Channel IDs during resumption. */
  904. uint8_t original_handshake_hash[EVP_MAX_MD_SIZE];
  905. unsigned int original_handshake_hash_len;
  906. /* extended_master_secret is true if the master secret in this session was
  907. * generated using EMS and thus isn't vulnerable to the Triple Handshake
  908. * attack. */
  909. char extended_master_secret;
  910. };
  911. /* SSL_set_mtu sets the |ssl|'s MTU in DTLS to |mtu|. It returns one on success
  912. * and zero on failure. */
  913. OPENSSL_EXPORT int SSL_set_mtu(SSL *ssl, unsigned mtu);
  914. /* SSL_get_secure_renegotiation_support returns one if the peer supports secure
  915. * renegotiation (RFC 5746) and zero otherwise. */
  916. OPENSSL_EXPORT int SSL_get_secure_renegotiation_support(const SSL *ssl);
  917. /* SSL_CTX_set_msg_callback installs |cb| as the message callback for |ctx|.
  918. * This callback will be called when sending or receiving low-level record
  919. * headers, complete handshake messages, ChangeCipherSpec, and alerts.
  920. * |write_p| is one for outgoing messages and zero for incoming messages.
  921. *
  922. * For each record header, |cb| is called with |version| = 0 and |content_type|
  923. * = |SSL3_RT_HEADER|. The |len| bytes from |buf| contain the header. Note that
  924. * this does not include the record body. If the record is sealed, the length
  925. * in the header is the length of the ciphertext.
  926. *
  927. * For each handshake message, ChangeCipherSpec, and alert, |version| is the
  928. * protocol version and |content_type| is the corresponding record type. The
  929. * |len| bytes from |buf| contain the handshake message, one-byte
  930. * ChangeCipherSpec body, and two-byte alert, respectively. */
  931. OPENSSL_EXPORT void SSL_CTX_set_msg_callback(
  932. SSL_CTX *ctx, void (*cb)(int write_p, int version, int content_type,
  933. const void *buf, size_t len, SSL *ssl, void *arg));
  934. /* SSL_CTX_set_msg_callback_arg sets the |arg| parameter of the message
  935. * callback. */
  936. OPENSSL_EXPORT void SSL_CTX_set_msg_callback_arg(SSL_CTX *ctx, void *arg);
  937. /* SSL_set_msg_callback installs |cb| as the message callback of |ssl|. See
  938. * |SSL_CTX_set_msg_callback| for when this callback is called. */
  939. OPENSSL_EXPORT void SSL_set_msg_callback(
  940. SSL *ssl, void (*cb)(int write_p, int version, int content_type,
  941. const void *buf, size_t len, SSL *ssl, void *arg));
  942. /* SSL_set_msg_callback_arg sets the |arg| parameter of the message callback. */
  943. OPENSSL_EXPORT void SSL_set_msg_callback_arg(SSL *ssl, void *arg);
  944. /* SSL_CTX_set_keylog_bio sets configures all SSL objects attached to |ctx| to
  945. * log session material to |keylog_bio|. This is intended for debugging use
  946. * with tools like Wireshark. |ctx| takes ownership of |keylog_bio|.
  947. *
  948. * The format is described in
  949. * https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/Key_Log_Format. */
  950. OPENSSL_EXPORT void SSL_CTX_set_keylog_bio(SSL_CTX *ctx, BIO *keylog_bio);
  951. struct ssl_aead_ctx_st;
  952. typedef struct ssl_aead_ctx_st SSL_AEAD_CTX;
  953. #define SSL_MAX_CERT_LIST_DEFAULT 1024 * 100 /* 100k max cert list */
  954. #define SSL_SESSION_CACHE_MAX_SIZE_DEFAULT (1024 * 20)
  955. #define SSL_DEFAULT_SESSION_TIMEOUT (2 * 60 * 60)
  956. /* This callback type is used inside SSL_CTX, SSL, and in the functions that
  957. * set them. It is used to override the generation of SSL/TLS session IDs in a
  958. * server. Return value should be zero on an error, non-zero to proceed. Also,
  959. * callbacks should themselves check if the id they generate is unique
  960. * otherwise the SSL handshake will fail with an error - callbacks can do this
  961. * using the 'ssl' value they're passed by;
  962. * SSL_has_matching_session_id(ssl, id, *id_len)
  963. * The length value passed in is set at the maximum size the session ID can be.
  964. * In SSLv2 this is 16 bytes, whereas SSLv3/TLSv1 it is 32 bytes. The callback
  965. * can alter this length to be less if desired, but under SSLv2 session IDs are
  966. * supposed to be fixed at 16 bytes so the id will be padded after the callback
  967. * returns in this case. It is also an error for the callback to set the size
  968. * to zero. */
  969. typedef int (*GEN_SESSION_CB)(const SSL *ssl, uint8_t *id,
  970. unsigned int *id_len);
  971. /* ssl_early_callback_ctx is passed to certain callbacks that are called very
  972. * early on during the server handshake. At this point, much of the SSL* hasn't
  973. * been filled out and only the ClientHello can be depended on. */
  974. struct ssl_early_callback_ctx {
  975. SSL *ssl;
  976. const uint8_t *client_hello;
  977. size_t client_hello_len;
  978. const uint8_t *session_id;
  979. size_t session_id_len;
  980. const uint8_t *cipher_suites;
  981. size_t cipher_suites_len;
  982. const uint8_t *compression_methods;
  983. size_t compression_methods_len;
  984. const uint8_t *extensions;
  985. size_t extensions_len;
  986. };
  987. /* SSL_early_callback_ctx_extension_get searches the extensions in |ctx| for an
  988. * extension of the given type. If not found, it returns zero. Otherwise it
  989. * sets |out_data| to point to the extension contents (not including the type
  990. * and length bytes), sets |out_len| to the length of the extension contents
  991. * and returns one. */
  992. OPENSSL_EXPORT char SSL_early_callback_ctx_extension_get(
  993. const struct ssl_early_callback_ctx *ctx, uint16_t extension_type,
  994. const uint8_t **out_data, size_t *out_len);
  995. typedef struct ssl_comp_st SSL_COMP;
  996. struct ssl_comp_st {
  997. int id;
  998. const char *name;
  999. char *method;
  1000. };
  1001. DECLARE_STACK_OF(SSL_COMP)
  1002. DECLARE_LHASH_OF(SSL_SESSION)
  1003. /* ssl_cipher_preference_list_st contains a list of SSL_CIPHERs with
  1004. * equal-preference groups. For TLS clients, the groups are moot because the
  1005. * server picks the cipher and groups cannot be expressed on the wire. However,
  1006. * for servers, the equal-preference groups allow the client's preferences to
  1007. * be partially respected. (This only has an effect with
  1008. * SSL_OP_CIPHER_SERVER_PREFERENCE).
  1009. *
  1010. * The equal-preference groups are expressed by grouping SSL_CIPHERs together.
  1011. * All elements of a group have the same priority: no ordering is expressed
  1012. * within a group.
  1013. *
  1014. * The values in |ciphers| are in one-to-one correspondence with
  1015. * |in_group_flags|. (That is, sk_SSL_CIPHER_num(ciphers) is the number of
  1016. * bytes in |in_group_flags|.) The bytes in |in_group_flags| are either 1, to
  1017. * indicate that the corresponding SSL_CIPHER is not the last element of a
  1018. * group, or 0 to indicate that it is.
  1019. *
  1020. * For example, if |in_group_flags| contains all zeros then that indicates a
  1021. * traditional, fully-ordered preference. Every SSL_CIPHER is the last element
  1022. * of the group (i.e. they are all in a one-element group).
  1023. *
  1024. * For a more complex example, consider:
  1025. * ciphers: A B C D E F
  1026. * in_group_flags: 1 1 0 0 1 0
  1027. *
  1028. * That would express the following, order:
  1029. *
  1030. * A E
  1031. * B -> D -> F
  1032. * C
  1033. */
  1034. struct ssl_cipher_preference_list_st {
  1035. STACK_OF(SSL_CIPHER) *ciphers;
  1036. uint8_t *in_group_flags;
  1037. };
  1038. struct ssl_ctx_st {
  1039. const SSL_PROTOCOL_METHOD *method;
  1040. /* lock is used to protect various operations on this object. */
  1041. CRYPTO_MUTEX lock;
  1042. /* max_version is the maximum acceptable protocol version. If zero, the
  1043. * maximum supported version, currently (D)TLS 1.2, is used. */
  1044. uint16_t max_version;
  1045. /* min_version is the minimum acceptable protocl version. If zero, the
  1046. * minimum supported version, currently SSL 3.0 and DTLS 1.0, is used */
  1047. uint16_t min_version;
  1048. struct ssl_cipher_preference_list_st *cipher_list;
  1049. /* same as above but sorted for lookup */
  1050. STACK_OF(SSL_CIPHER) *cipher_list_by_id;
  1051. /* cipher_list_tls11 is the list of ciphers when TLS 1.1 or greater is in
  1052. * use. This only applies to server connections as, for clients, the version
  1053. * number is known at connect time and so the cipher list can be set then. */
  1054. struct ssl_cipher_preference_list_st *cipher_list_tls11;
  1055. X509_STORE *cert_store;
  1056. LHASH_OF(SSL_SESSION) *sessions;
  1057. /* Most session-ids that will be cached, default is
  1058. * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited. */
  1059. unsigned long session_cache_size;
  1060. SSL_SESSION *session_cache_head;
  1061. SSL_SESSION *session_cache_tail;
  1062. /* handshakes_since_cache_flush is the number of successful handshakes since
  1063. * the last cache flush. */
  1064. int handshakes_since_cache_flush;
  1065. /* This can have one of 2 values, ored together,
  1066. * SSL_SESS_CACHE_CLIENT,
  1067. * SSL_SESS_CACHE_SERVER,
  1068. * Default is SSL_SESSION_CACHE_SERVER, which means only
  1069. * SSL_accept which cache SSL_SESSIONS. */
  1070. int session_cache_mode;
  1071. /* If timeout is not 0, it is the default timeout value set when SSL_new() is
  1072. * called. This has been put in to make life easier to set things up */
  1073. long session_timeout;
  1074. /* If this callback is not null, it will be called each time a session id is
  1075. * added to the cache. If this function returns 1, it means that the
  1076. * callback will do a SSL_SESSION_free() when it has finished using it.
  1077. * Otherwise, on 0, it means the callback has finished with it. If
  1078. * remove_session_cb is not null, it will be called when a session-id is
  1079. * removed from the cache. After the call, OpenSSL will SSL_SESSION_free()
  1080. * it. */
  1081. int (*new_session_cb)(SSL *ssl, SSL_SESSION *sess);
  1082. void (*remove_session_cb)(SSL_CTX *ctx, SSL_SESSION *sess);
  1083. SSL_SESSION *(*get_session_cb)(SSL *ssl, uint8_t *data, int len,
  1084. int *copy);
  1085. CRYPTO_refcount_t references;
  1086. /* if defined, these override the X509_verify_cert() calls */
  1087. int (*app_verify_callback)(X509_STORE_CTX *, void *);
  1088. void *app_verify_arg;
  1089. /* before OpenSSL 0.9.7, 'app_verify_arg' was ignored ('app_verify_callback'
  1090. * was called with just one argument) */
  1091. /* Default password callback. */
  1092. pem_password_cb *default_passwd_callback;
  1093. /* Default password callback user data. */
  1094. void *default_passwd_callback_userdata;
  1095. /* get client cert callback */
  1096. int (*client_cert_cb)(SSL *ssl, X509 **x509, EVP_PKEY **pkey);
  1097. /* get channel id callback */
  1098. void (*channel_id_cb)(SSL *ssl, EVP_PKEY **pkey);
  1099. CRYPTO_EX_DATA ex_data;
  1100. /* custom_*_extensions stores any callback sets for custom extensions. Note
  1101. * that these pointers will be NULL if the stack would otherwise be empty. */
  1102. STACK_OF(SSL_CUSTOM_EXTENSION) *client_custom_extensions;
  1103. STACK_OF(SSL_CUSTOM_EXTENSION) *server_custom_extensions;
  1104. /* Default values used when no per-SSL value is defined follow */
  1105. void (*info_callback)(const SSL *ssl, int type,
  1106. int val); /* used if SSL's info_callback is NULL */
  1107. /* what we put in client cert requests */
  1108. STACK_OF(X509_NAME) *client_CA;
  1109. /* Default values to use in SSL structures follow (these are copied by
  1110. * SSL_new) */
  1111. uint32_t options;
  1112. uint32_t mode;
  1113. uint32_t max_cert_list;
  1114. struct cert_st /* CERT */ *cert;
  1115. /* callback that allows applications to peek at protocol messages */
  1116. void (*msg_callback)(int write_p, int version, int content_type,
  1117. const void *buf, size_t len, SSL *ssl, void *arg);
  1118. void *msg_callback_arg;
  1119. int verify_mode;
  1120. unsigned int sid_ctx_length;
  1121. uint8_t sid_ctx[SSL_MAX_SID_CTX_LENGTH];
  1122. int (*default_verify_callback)(
  1123. int ok, X509_STORE_CTX *ctx); /* called 'verify_callback' in the SSL */
  1124. /* Default generate session ID callback. */
  1125. GEN_SESSION_CB generate_session_id;
  1126. X509_VERIFY_PARAM *param;
  1127. /* select_certificate_cb is called before most ClientHello processing and
  1128. * before the decision whether to resume a session is made. It may return one
  1129. * to continue the handshake or zero to cause the handshake loop to return
  1130. * with an error and cause SSL_get_error to return
  1131. * SSL_ERROR_PENDING_CERTIFICATE. Note: when the handshake loop is resumed, it
  1132. * will not call the callback a second time. */
  1133. int (*select_certificate_cb)(const struct ssl_early_callback_ctx *);
  1134. /* dos_protection_cb is called once the resumption decision for a ClientHello
  1135. * has been made. It returns one to continue the handshake or zero to
  1136. * abort. */
  1137. int (*dos_protection_cb) (const struct ssl_early_callback_ctx *);
  1138. /* quiet_shutdown is true if the connection should not send a close_notify on
  1139. * shutdown. */
  1140. int quiet_shutdown;
  1141. /* Maximum amount of data to send in one fragment. actual record size can be
  1142. * more than this due to padding and MAC overheads. */
  1143. uint16_t max_send_fragment;
  1144. /* TLS extensions servername callback */
  1145. int (*tlsext_servername_callback)(SSL *, int *, void *);
  1146. void *tlsext_servername_arg;
  1147. /* RFC 4507 session ticket keys */
  1148. uint8_t tlsext_tick_key_name[SSL_TICKET_KEY_NAME_LEN];
  1149. uint8_t tlsext_tick_hmac_key[16];
  1150. uint8_t tlsext_tick_aes_key[16];
  1151. /* Callback to support customisation of ticket key setting */
  1152. int (*tlsext_ticket_key_cb)(SSL *ssl, uint8_t *name, uint8_t *iv,
  1153. EVP_CIPHER_CTX *ectx, HMAC_CTX *hctx, int enc);
  1154. /* Server-only: psk_identity_hint is the default identity hint to send in
  1155. * PSK-based key exchanges. */
  1156. char *psk_identity_hint;
  1157. unsigned int (*psk_client_callback)(SSL *ssl, const char *hint,
  1158. char *identity,
  1159. unsigned int max_identity_len,
  1160. uint8_t *psk, unsigned int max_psk_len);
  1161. unsigned int (*psk_server_callback)(SSL *ssl, const char *identity,
  1162. uint8_t *psk, unsigned int max_psk_len);
  1163. /* retain_only_sha256_of_client_certs is true if we should compute the SHA256
  1164. * hash of the peer's certifiate and then discard it to save memory and
  1165. * session space. Only effective on the server side. */
  1166. char retain_only_sha256_of_client_certs;
  1167. /* Next protocol negotiation information */
  1168. /* (for experimental NPN extension). */
  1169. /* For a server, this contains a callback function by which the set of
  1170. * advertised protocols can be provided. */
  1171. int (*next_protos_advertised_cb)(SSL *s, const uint8_t **buf,
  1172. unsigned int *len, void *arg);
  1173. void *next_protos_advertised_cb_arg;
  1174. /* For a client, this contains a callback function that selects the
  1175. * next protocol from the list provided by the server. */
  1176. int (*next_proto_select_cb)(SSL *s, uint8_t **out, uint8_t *outlen,
  1177. const uint8_t *in, unsigned int inlen, void *arg);
  1178. void *next_proto_select_cb_arg;
  1179. /* ALPN information
  1180. * (we are in the process of transitioning from NPN to ALPN.) */
  1181. /* For a server, this contains a callback function that allows the
  1182. * server to select the protocol for the connection.
  1183. * out: on successful return, this must point to the raw protocol
  1184. * name (without the length prefix).
  1185. * outlen: on successful return, this contains the length of |*out|.
  1186. * in: points to the client's list of supported protocols in
  1187. * wire-format.
  1188. * inlen: the length of |in|. */
  1189. int (*alpn_select_cb)(SSL *s, const uint8_t **out, uint8_t *outlen,
  1190. const uint8_t *in, unsigned int inlen, void *arg);
  1191. void *alpn_select_cb_arg;
  1192. /* For a client, this contains the list of supported protocols in wire
  1193. * format. */
  1194. uint8_t *alpn_client_proto_list;
  1195. unsigned alpn_client_proto_list_len;
  1196. /* SRTP profiles we are willing to do from RFC 5764 */
  1197. STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
  1198. /* EC extension values inherited by SSL structure */
  1199. size_t tlsext_ellipticcurvelist_length;
  1200. uint16_t *tlsext_ellipticcurvelist;
  1201. /* If true, a client will advertise the Channel ID extension and a server
  1202. * will echo it. */
  1203. char tlsext_channel_id_enabled;
  1204. /* The client's Channel ID private key. */
  1205. EVP_PKEY *tlsext_channel_id_private;
  1206. /* If true, a client will request certificate timestamps. */
  1207. char signed_cert_timestamps_enabled;
  1208. /* If true, a client will request a stapled OCSP response. */
  1209. char ocsp_stapling_enabled;
  1210. /* OCSP response to be sent to the client, if requested. */
  1211. uint8_t *ocsp_response;
  1212. size_t ocsp_response_length;
  1213. /* If not NULL, session key material will be logged to this BIO for debugging
  1214. * purposes. The format matches NSS's and is readable by Wireshark. */
  1215. BIO *keylog_bio;
  1216. /* current_time_cb, if not NULL, is the function to use to get the current
  1217. * time. It sets |*out_clock| to the current time. */
  1218. void (*current_time_cb)(const SSL *ssl, struct timeval *out_clock);
  1219. };
  1220. OPENSSL_EXPORT LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx);
  1221. /* SSL_CTX_sess_number returns the number of sessions in |ctx|'s internal
  1222. * session cache. */
  1223. OPENSSL_EXPORT size_t SSL_CTX_sess_number(const SSL_CTX *ctx);
  1224. OPENSSL_EXPORT void SSL_CTX_sess_set_new_cb(
  1225. SSL_CTX *ctx, int (*new_session_cb)(SSL *ssl, SSL_SESSION *sess));
  1226. OPENSSL_EXPORT int (*SSL_CTX_sess_get_new_cb(SSL_CTX *ctx))(SSL *ssl,
  1227. SSL_SESSION *sess);
  1228. OPENSSL_EXPORT void SSL_CTX_sess_set_remove_cb(
  1229. SSL_CTX *ctx,
  1230. void (*remove_session_cb)(SSL_CTX *ctx, SSL_SESSION *sess));
  1231. OPENSSL_EXPORT void (*SSL_CTX_sess_get_remove_cb(SSL_CTX *ctx))(
  1232. SSL_CTX *ctx, SSL_SESSION *sess);
  1233. OPENSSL_EXPORT void SSL_CTX_sess_set_get_cb(
  1234. SSL_CTX *ctx,
  1235. SSL_SESSION *(*get_session_cb)(SSL *ssl, uint8_t *data, int len,
  1236. int *copy));
  1237. OPENSSL_EXPORT SSL_SESSION *(*SSL_CTX_sess_get_get_cb(SSL_CTX *ctx))(
  1238. SSL *ssl, uint8_t *data, int len, int *copy);
  1239. /* SSL_magic_pending_session_ptr returns a magic SSL_SESSION* which indicates
  1240. * that the session isn't currently unavailable. SSL_get_error will then return
  1241. * SSL_ERROR_PENDING_SESSION and the handshake can be retried later when the
  1242. * lookup has completed. */
  1243. OPENSSL_EXPORT SSL_SESSION *SSL_magic_pending_session_ptr(void);
  1244. OPENSSL_EXPORT void SSL_CTX_set_info_callback(SSL_CTX *ctx,
  1245. void (*cb)(const SSL *ssl,
  1246. int type, int val));
  1247. OPENSSL_EXPORT void (*SSL_CTX_get_info_callback(SSL_CTX *ctx))(const SSL *ssl,
  1248. int type,
  1249. int val);
  1250. OPENSSL_EXPORT void SSL_CTX_set_client_cert_cb(
  1251. SSL_CTX *ctx,
  1252. int (*client_cert_cb)(SSL *ssl, X509 **x509, EVP_PKEY **pkey));
  1253. OPENSSL_EXPORT int (*SSL_CTX_get_client_cert_cb(SSL_CTX *ctx))(SSL *ssl,
  1254. X509 **x509,
  1255. EVP_PKEY **pkey);
  1256. OPENSSL_EXPORT void SSL_CTX_set_channel_id_cb(
  1257. SSL_CTX *ctx, void (*channel_id_cb)(SSL *ssl, EVP_PKEY **pkey));
  1258. OPENSSL_EXPORT void (*SSL_CTX_get_channel_id_cb(SSL_CTX *ctx))(SSL *ssl,
  1259. EVP_PKEY **pkey);
  1260. /* SSL_enable_signed_cert_timestamps causes |ssl| (which must be the client end
  1261. * of a connection) to request SCTs from the server. See
  1262. * https://tools.ietf.org/html/rfc6962. It returns one. */
  1263. OPENSSL_EXPORT int SSL_enable_signed_cert_timestamps(SSL *ssl);
  1264. /* SSL_CTX_enable_signed_cert_timestamps enables SCT requests on all client SSL
  1265. * objects created from |ctx|. */
  1266. OPENSSL_EXPORT void SSL_CTX_enable_signed_cert_timestamps(SSL_CTX *ctx);
  1267. /* SSL_enable_ocsp_stapling causes |ssl| (which must be the client end of a
  1268. * connection) to request a stapled OCSP response from the server. It returns
  1269. * one. */
  1270. OPENSSL_EXPORT int SSL_enable_ocsp_stapling(SSL *ssl);
  1271. /* SSL_CTX_enable_ocsp_stapling enables OCSP stapling on all client SSL objects
  1272. * created from |ctx|. */
  1273. OPENSSL_EXPORT void SSL_CTX_enable_ocsp_stapling(SSL_CTX *ctx);
  1274. /* SSL_get0_signed_cert_timestamp_list sets |*out| and |*out_len| to point to
  1275. * |*out_len| bytes of SCT information from the server. This is only valid if
  1276. * |ssl| is a client. The SCT information is a SignedCertificateTimestampList
  1277. * (including the two leading length bytes).
  1278. * See https://tools.ietf.org/html/rfc6962#section-3.3
  1279. * If no SCT was received then |*out_len| will be zero on return.
  1280. *
  1281. * WARNING: the returned data is not guaranteed to be well formed. */
  1282. OPENSSL_EXPORT void SSL_get0_signed_cert_timestamp_list(const SSL *ssl,
  1283. const uint8_t **out,
  1284. size_t *out_len);
  1285. /* SSL_get0_ocsp_response sets |*out| and |*out_len| to point to |*out_len|
  1286. * bytes of an OCSP response from the server. This is the DER encoding of an
  1287. * OCSPResponse type as defined in RFC 2560.
  1288. *
  1289. * WARNING: the returned data is not guaranteed to be well formed. */
  1290. OPENSSL_EXPORT void SSL_get0_ocsp_response(const SSL *ssl, const uint8_t **out,
  1291. size_t *out_len);
  1292. OPENSSL_EXPORT void SSL_CTX_set_next_protos_advertised_cb(
  1293. SSL_CTX *s,
  1294. int (*cb)(SSL *ssl, const uint8_t **out, unsigned int *outlen, void *arg),
  1295. void *arg);
  1296. OPENSSL_EXPORT void SSL_CTX_set_next_proto_select_cb(
  1297. SSL_CTX *s, int (*cb)(SSL *ssl, uint8_t **out, uint8_t *outlen,
  1298. const uint8_t *in, unsigned int inlen, void *arg),
  1299. void *arg);
  1300. OPENSSL_EXPORT void SSL_get0_next_proto_negotiated(const SSL *s,
  1301. const uint8_t **data,
  1302. unsigned *len);
  1303. OPENSSL_EXPORT int SSL_select_next_proto(uint8_t **out, uint8_t *outlen,
  1304. const uint8_t *in, unsigned int inlen,
  1305. const uint8_t *client,
  1306. unsigned int client_len);
  1307. #define OPENSSL_NPN_UNSUPPORTED 0
  1308. #define OPENSSL_NPN_NEGOTIATED 1
  1309. #define OPENSSL_NPN_NO_OVERLAP 2
  1310. /* SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
  1311. * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
  1312. * length-prefixed strings). It returns zero on success and one on failure.
  1313. *
  1314. * WARNING: this function is dangerous because it breaks the usual return value
  1315. * convention. */
  1316. OPENSSL_EXPORT int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const uint8_t *protos,
  1317. unsigned protos_len);
  1318. /* SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
  1319. * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
  1320. * length-prefixed strings). It returns zero on success and one on failure.
  1321. *
  1322. * WARNING: this function is dangerous because it breaks the usual return value
  1323. * convention. */
  1324. OPENSSL_EXPORT int SSL_set_alpn_protos(SSL *ssl, const uint8_t *protos,
  1325. unsigned protos_len);
  1326. OPENSSL_EXPORT void SSL_CTX_set_alpn_select_cb(
  1327. SSL_CTX *ctx, int (*cb)(SSL *ssl, const uint8_t **out, uint8_t *outlen,
  1328. const uint8_t *in, unsigned int inlen, void *arg),
  1329. void *arg);
  1330. OPENSSL_EXPORT void SSL_get0_alpn_selected(const SSL *ssl, const uint8_t **data,
  1331. unsigned *len);
  1332. /* SSL_set_reject_peer_renegotiations controls whether renegotiation attempts by
  1333. * the peer are rejected. It may be set at any point in a connection's lifetime
  1334. * to control future renegotiations programmatically. By default, renegotiations
  1335. * are rejected. (Renegotiations requested by a client are always rejected.) */
  1336. OPENSSL_EXPORT void SSL_set_reject_peer_renegotiations(SSL *ssl, int reject);
  1337. /* the maximum length of the buffer given to callbacks containing the resulting
  1338. * identity/psk */
  1339. #define PSK_MAX_IDENTITY_LEN 128
  1340. #define PSK_MAX_PSK_LEN 256
  1341. OPENSSL_EXPORT void SSL_CTX_set_psk_client_callback(
  1342. SSL_CTX *ctx,
  1343. unsigned int (*psk_client_callback)(
  1344. SSL *ssl, const char *hint, char *identity,
  1345. unsigned int max_identity_len, uint8_t *psk, unsigned int max_psk_len));
  1346. OPENSSL_EXPORT void SSL_set_psk_client_callback(
  1347. SSL *ssl, unsigned int (*psk_client_callback)(SSL *ssl, const char *hint,
  1348. char *identity,
  1349. unsigned int max_identity_len,
  1350. uint8_t *psk,
  1351. unsigned int max_psk_len));
  1352. OPENSSL_EXPORT void SSL_CTX_set_psk_server_callback(
  1353. SSL_CTX *ctx,
  1354. unsigned int (*psk_server_callback)(SSL *ssl, const char *identity,
  1355. uint8_t *psk,
  1356. unsigned int max_psk_len));
  1357. OPENSSL_EXPORT void SSL_set_psk_server_callback(
  1358. SSL *ssl,
  1359. unsigned int (*psk_server_callback)(SSL *ssl, const char *identity,
  1360. uint8_t *psk,
  1361. unsigned int max_psk_len));
  1362. OPENSSL_EXPORT int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx,
  1363. const char *identity_hint);
  1364. OPENSSL_EXPORT int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint);
  1365. OPENSSL_EXPORT const char *SSL_get_psk_identity_hint(const SSL *s);
  1366. OPENSSL_EXPORT const char *SSL_get_psk_identity(const SSL *s);
  1367. #define SSL_NOTHING 1
  1368. #define SSL_WRITING 2
  1369. #define SSL_READING 3
  1370. #define SSL_X509_LOOKUP 4
  1371. #define SSL_CHANNEL_ID_LOOKUP 5
  1372. #define SSL_PENDING_SESSION 7
  1373. #define SSL_CERTIFICATE_SELECTION_PENDING 8
  1374. #define SSL_PRIVATE_KEY_OPERATION 9
  1375. /* These will only be used when doing non-blocking IO */
  1376. #define SSL_want_nothing(s) (SSL_want(s) == SSL_NOTHING)
  1377. #define SSL_want_read(s) (SSL_want(s) == SSL_READING)
  1378. #define SSL_want_write(s) (SSL_want(s) == SSL_WRITING)
  1379. #define SSL_want_x509_lookup(s) (SSL_want(s) == SSL_X509_LOOKUP)
  1380. #define SSL_want_channel_id_lookup(s) (SSL_want(s) == SSL_CHANNEL_ID_LOOKUP)
  1381. #define SSL_want_session(s) (SSL_want(s) == SSL_PENDING_SESSION)
  1382. #define SSL_want_certificate(s) \
  1383. (SSL_want(s) == SSL_CERTIFICATE_SELECTION_PENDING)
  1384. #define SSL_want_private_key_operation(s) \
  1385. (SSL_want(s) == SSL_PRIVATE_KEY_OPERATION)
  1386. struct ssl_st {
  1387. /* version is the protocol version. */
  1388. int version;
  1389. /* method is the method table corresponding to the current protocol (DTLS or
  1390. * TLS). */
  1391. const SSL_PROTOCOL_METHOD *method;
  1392. /* enc_method is the method table corresponding to the current protocol
  1393. * version. */
  1394. const SSL3_ENC_METHOD *enc_method;
  1395. /* max_version is the maximum acceptable protocol version. If zero, the
  1396. * maximum supported version, currently (D)TLS 1.2, is used. */
  1397. uint16_t max_version;
  1398. /* min_version is the minimum acceptable protocl version. If zero, the
  1399. * minimum supported version, currently SSL 3.0 and DTLS 1.0, is used */
  1400. uint16_t min_version;
  1401. /* There are 2 BIO's even though they are normally both the same. This is so
  1402. * data can be read and written to different handlers */
  1403. BIO *rbio; /* used by SSL_read */
  1404. BIO *wbio; /* used by SSL_write */
  1405. BIO *bbio; /* used during session-id reuse to concatenate
  1406. * messages */
  1407. /* This holds a variable that indicates what we were doing when a 0 or -1 is
  1408. * returned. This is needed for non-blocking IO so we know what request
  1409. * needs re-doing when in SSL_accept or SSL_connect */
  1410. int rwstate;
  1411. /* true when we are actually in SSL_accept() or SSL_connect() */
  1412. int in_handshake;
  1413. int (*handshake_func)(SSL *);
  1414. /* Imagine that here's a boolean member "init" that is switched as soon as
  1415. * SSL_set_{accept/connect}_state is called for the first time, so that
  1416. * "state" and "handshake_func" are properly initialized. But as
  1417. * handshake_func is == 0 until then, we use this test instead of an "init"
  1418. * member. */
  1419. /* server is true iff the this SSL* is the server half. Note: before the SSL*
  1420. * is initialized by either SSL_set_accept_state or SSL_set_connect_state,
  1421. * the side is not determined. In this state, server is always false. */
  1422. int server;
  1423. /* quiet_shutdown is true if the connection should not send a close_notify on
  1424. * shutdown. */
  1425. int quiet_shutdown;
  1426. int shutdown; /* we have shut things down, 0x01 sent, 0x02
  1427. * for received */
  1428. int state; /* where we are */
  1429. BUF_MEM *init_buf; /* buffer used during init */
  1430. uint8_t *init_msg; /* pointer to handshake message body, set by
  1431. ssl3_get_message() */
  1432. int init_num; /* amount read/written */
  1433. int init_off; /* amount read/written */
  1434. struct ssl3_state_st *s3; /* SSLv3 variables */
  1435. struct dtls1_state_st *d1; /* DTLSv1 variables */
  1436. /* callback that allows applications to peek at protocol messages */
  1437. void (*msg_callback)(int write_p, int version, int content_type,
  1438. const void *buf, size_t len, SSL *ssl, void *arg);
  1439. void *msg_callback_arg;
  1440. int hit; /* reusing a previous session */
  1441. X509_VERIFY_PARAM *param;
  1442. /* crypto */
  1443. struct ssl_cipher_preference_list_st *cipher_list;
  1444. STACK_OF(SSL_CIPHER) *cipher_list_by_id;
  1445. SSL_AEAD_CTX *aead_read_ctx;
  1446. SSL_AEAD_CTX *aead_write_ctx;
  1447. /* session info */
  1448. /* client cert? */
  1449. /* This is used to hold the server certificate used */
  1450. struct cert_st /* CERT */ *cert;
  1451. /* the session_id_context is used to ensure sessions are only reused
  1452. * in the appropriate context */
  1453. unsigned int sid_ctx_length;
  1454. uint8_t sid_ctx[SSL_MAX_SID_CTX_LENGTH];
  1455. /* This can also be in the session once a session is established */
  1456. SSL_SESSION *session;
  1457. /* Default generate session ID callback. */
  1458. GEN_SESSION_CB generate_session_id;
  1459. /* Used in SSL2 and SSL3 */
  1460. int verify_mode; /* 0 don't care about verify failure.
  1461. * 1 fail if verify fails */
  1462. int (*verify_callback)(int ok,
  1463. X509_STORE_CTX *ctx); /* fail if callback returns 0 */
  1464. void (*info_callback)(const SSL *ssl, int type,
  1465. int val); /* optional informational callback */
  1466. /* Server-only: psk_identity_hint is the identity hint to send in
  1467. * PSK-based key exchanges. */
  1468. char *psk_identity_hint;
  1469. unsigned int (*psk_client_callback)(SSL *ssl, const char *hint,
  1470. char *identity,
  1471. unsigned int max_identity_len,
  1472. uint8_t *psk, unsigned int max_psk_len);
  1473. unsigned int (*psk_server_callback)(SSL *ssl, const char *identity,
  1474. uint8_t *psk, unsigned int max_psk_len);
  1475. SSL_CTX *ctx;
  1476. /* extra application data */
  1477. long verify_result;
  1478. CRYPTO_EX_DATA ex_data;
  1479. /* for server side, keep the list of CA_dn we can use */
  1480. STACK_OF(X509_NAME) *client_CA;
  1481. uint32_t options; /* protocol behaviour */
  1482. uint32_t mode; /* API behaviour */
  1483. uint32_t max_cert_list;
  1484. int client_version; /* what was passed, used for
  1485. * SSLv3/TLS rollback check */
  1486. uint16_t max_send_fragment;
  1487. char *tlsext_hostname;
  1488. /* RFC4507 session ticket expected to be received or sent */
  1489. int tlsext_ticket_expected;
  1490. size_t tlsext_ellipticcurvelist_length;
  1491. uint16_t *tlsext_ellipticcurvelist; /* our list */
  1492. SSL_CTX *initial_ctx; /* initial ctx, used to store sessions */
  1493. /* Next protocol negotiation. For the client, this is the protocol that we
  1494. * sent in NextProtocol and is set when handling ServerHello extensions.
  1495. *
  1496. * For a server, this is the client's selected_protocol from NextProtocol and
  1497. * is set when handling the NextProtocol message, before the Finished
  1498. * message. */
  1499. uint8_t *next_proto_negotiated;
  1500. size_t next_proto_negotiated_len;
  1501. /* srtp_profiles is the list of configured SRTP protection profiles for
  1502. * DTLS-SRTP. */
  1503. STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
  1504. /* srtp_profile is the selected SRTP protection profile for
  1505. * DTLS-SRTP. */
  1506. const SRTP_PROTECTION_PROFILE *srtp_profile;
  1507. /* Copied from the SSL_CTX. For a server, means that we'll accept Channel IDs
  1508. * from clients. For a client, means that we'll advertise support. */
  1509. char tlsext_channel_id_enabled;
  1510. /* The client's Channel ID private key. */
  1511. EVP_PKEY *tlsext_channel_id_private;
  1512. /* Enable signed certificate time stamps. Currently client only. */
  1513. char signed_cert_timestamps_enabled;
  1514. /* ocsp_stapling_enabled is only used by client connections and indicates
  1515. * whether OCSP stapling will be requested. */
  1516. char ocsp_stapling_enabled;
  1517. /* For a client, this contains the list of supported protocols in wire
  1518. * format. */
  1519. uint8_t *alpn_client_proto_list;
  1520. unsigned alpn_client_proto_list_len;
  1521. /* accept_peer_renegotiations, if one, accepts renegotiation attempts from the
  1522. * peer. Otherwise, they will be rejected with a fatal error. */
  1523. char accept_peer_renegotiations;
  1524. /* These fields are always NULL and exist only to keep wpa_supplicant happy
  1525. * about the change to EVP_AEAD. They are only needed for EAP-FAST, which we
  1526. * don't support. */
  1527. EVP_CIPHER_CTX *enc_read_ctx;
  1528. EVP_MD_CTX *read_hash;
  1529. };
  1530. /* compatibility */
  1531. #define SSL_set_app_data(s, arg) (SSL_set_ex_data(s, 0, (char *)arg))
  1532. #define SSL_get_app_data(s) (SSL_get_ex_data(s, 0))
  1533. #define SSL_SESSION_set_app_data(s, a) \
  1534. (SSL_SESSION_set_ex_data(s, 0, (char *)a))
  1535. #define SSL_SESSION_get_app_data(s) (SSL_SESSION_get_ex_data(s, 0))
  1536. #define SSL_CTX_get_app_data(ctx) (SSL_CTX_get_ex_data(ctx, 0))
  1537. #define SSL_CTX_set_app_data(ctx, arg) \
  1538. (SSL_CTX_set_ex_data(ctx, 0, (char *)arg))
  1539. /* The following are the possible values for ssl->state are are used to
  1540. * indicate where we are up to in the SSL connection establishment. The macros
  1541. * that follow are about the only things you should need to use and even then,
  1542. * only when using non-blocking IO. It can also be useful to work out where you
  1543. * were when the connection failed */
  1544. #define SSL_ST_CONNECT 0x1000
  1545. #define SSL_ST_ACCEPT 0x2000
  1546. #define SSL_ST_MASK 0x0FFF
  1547. #define SSL_ST_INIT (SSL_ST_CONNECT | SSL_ST_ACCEPT)
  1548. #define SSL_ST_OK 0x03
  1549. #define SSL_ST_RENEGOTIATE (0x04 | SSL_ST_INIT)
  1550. #define SSL_CB_LOOP 0x01
  1551. #define SSL_CB_EXIT 0x02
  1552. #define SSL_CB_READ 0x04
  1553. #define SSL_CB_WRITE 0x08
  1554. #define SSL_CB_ALERT 0x4000 /* used in callback */
  1555. #define SSL_CB_READ_ALERT (SSL_CB_ALERT | SSL_CB_READ)
  1556. #define SSL_CB_WRITE_ALERT (SSL_CB_ALERT | SSL_CB_WRITE)
  1557. #define SSL_CB_ACCEPT_LOOP (SSL_ST_ACCEPT | SSL_CB_LOOP)
  1558. #define SSL_CB_ACCEPT_EXIT (SSL_ST_ACCEPT | SSL_CB_EXIT)
  1559. #define SSL_CB_CONNECT_LOOP (SSL_ST_CONNECT | SSL_CB_LOOP)
  1560. #define SSL_CB_CONNECT_EXIT (SSL_ST_CONNECT | SSL_CB_EXIT)
  1561. #define SSL_CB_HANDSHAKE_START 0x10
  1562. #define SSL_CB_HANDSHAKE_DONE 0x20
  1563. /* Is the SSL_connection established? */
  1564. #define SSL_get_state(a) SSL_state(a)
  1565. #define SSL_is_init_finished(a) (SSL_state(a) == SSL_ST_OK)
  1566. #define SSL_in_init(a) (SSL_state(a) & SSL_ST_INIT)
  1567. #define SSL_in_connect_init(a) (SSL_state(a) & SSL_ST_CONNECT)
  1568. #define SSL_in_accept_init(a) (SSL_state(a) & SSL_ST_ACCEPT)
  1569. /* SSL_in_false_start returns one if |s| has a pending unfinished handshake that
  1570. * is in False Start. |SSL_write| may be called at this point without waiting
  1571. * for the peer, but |SSL_read| will require the handshake to be completed. */
  1572. OPENSSL_EXPORT int SSL_in_false_start(const SSL *s);
  1573. /* Obtain latest Finished message
  1574. * -- that we sent (SSL_get_finished)
  1575. * -- that we expected from peer (SSL_get_peer_finished).
  1576. * Returns length (0 == no Finished so far), copies up to 'count' bytes. */
  1577. OPENSSL_EXPORT size_t SSL_get_finished(const SSL *s, void *buf, size_t count);
  1578. OPENSSL_EXPORT size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count);
  1579. /* use either SSL_VERIFY_NONE or SSL_VERIFY_PEER, the last 3 options
  1580. * are 'ored' with SSL_VERIFY_PEER if they are desired */
  1581. #define SSL_VERIFY_NONE 0x00
  1582. #define SSL_VERIFY_PEER 0x01
  1583. #define SSL_VERIFY_FAIL_IF_NO_PEER_CERT 0x02
  1584. /* SSL_VERIFY_CLIENT_ONCE does nothing. */
  1585. #define SSL_VERIFY_CLIENT_ONCE 0x04
  1586. #define SSL_VERIFY_PEER_IF_NO_OBC 0x08
  1587. #define OpenSSL_add_ssl_algorithms() SSL_library_init()
  1588. #define SSLeay_add_ssl_algorithms() SSL_library_init()
  1589. /* For backward compatibility */
  1590. #define SSL_get_cipher(s) SSL_CIPHER_get_name(SSL_get_current_cipher(s))
  1591. #define SSL_get_cipher_bits(s, np) \
  1592. SSL_CIPHER_get_bits(SSL_get_current_cipher(s), np)
  1593. #define SSL_get_cipher_version(s) \
  1594. SSL_CIPHER_get_version(SSL_get_current_cipher(s))
  1595. #define SSL_get_cipher_name(s) SSL_CIPHER_get_name(SSL_get_current_cipher(s))
  1596. #define SSL_get_time(a) SSL_SESSION_get_time(a)
  1597. #define SSL_set_time(a, b) SSL_SESSION_set_time((a), (b))
  1598. #define SSL_get_timeout(a) SSL_SESSION_get_timeout(a)
  1599. #define SSL_set_timeout(a, b) SSL_SESSION_set_timeout((a), (b))
  1600. #define d2i_SSL_SESSION_bio(bp, s_id) \
  1601. ASN1_d2i_bio_of(SSL_SESSION, SSL_SESSION_new, d2i_SSL_SESSION, bp, s_id)
  1602. #define i2d_SSL_SESSION_bio(bp, s_id) \
  1603. ASN1_i2d_bio_of(SSL_SESSION, i2d_SSL_SESSION, bp, s_id)
  1604. DECLARE_PEM_rw(SSL_SESSION, SSL_SESSION)
  1605. /* make_errors.go reserves error codes above 1000 for manually-assigned errors.
  1606. * This value must be kept in sync with reservedReasonCode in make_errors.h */
  1607. #define SSL_AD_REASON_OFFSET \
  1608. 1000 /* offset to get SSL_R_... value from SSL_AD_... */
  1609. /* These alert types are for SSLv3 and TLSv1 */
  1610. #define SSL_AD_CLOSE_NOTIFY SSL3_AD_CLOSE_NOTIFY
  1611. #define SSL_AD_UNEXPECTED_MESSAGE SSL3_AD_UNEXPECTED_MESSAGE /* fatal */
  1612. #define SSL_AD_BAD_RECORD_MAC SSL3_AD_BAD_RECORD_MAC /* fatal */
  1613. #define SSL_AD_DECRYPTION_FAILED TLS1_AD_DECRYPTION_FAILED
  1614. #define SSL_AD_RECORD_OVERFLOW TLS1_AD_RECORD_OVERFLOW
  1615. #define SSL_AD_DECOMPRESSION_FAILURE SSL3_AD_DECOMPRESSION_FAILURE /* fatal */
  1616. #define SSL_AD_HANDSHAKE_FAILURE SSL3_AD_HANDSHAKE_FAILURE /* fatal */
  1617. #define SSL_AD_NO_CERTIFICATE SSL3_AD_NO_CERTIFICATE /* Not for TLS */
  1618. #define SSL_AD_BAD_CERTIFICATE SSL3_AD_BAD_CERTIFICATE
  1619. #define SSL_AD_UNSUPPORTED_CERTIFICATE SSL3_AD_UNSUPPORTED_CERTIFICATE
  1620. #define SSL_AD_CERTIFICATE_REVOKED SSL3_AD_CERTIFICATE_REVOKED
  1621. #define SSL_AD_CERTIFICATE_EXPIRED SSL3_AD_CERTIFICATE_EXPIRED
  1622. #define SSL_AD_CERTIFICATE_UNKNOWN SSL3_AD_CERTIFICATE_UNKNOWN
  1623. #define SSL_AD_ILLEGAL_PARAMETER SSL3_AD_ILLEGAL_PARAMETER /* fatal */
  1624. #define SSL_AD_UNKNOWN_CA TLS1_AD_UNKNOWN_CA /* fatal */
  1625. #define SSL_AD_ACCESS_DENIED TLS1_AD_ACCESS_DENIED /* fatal */
  1626. #define SSL_AD_DECODE_ERROR TLS1_AD_DECODE_ERROR /* fatal */
  1627. #define SSL_AD_DECRYPT_ERROR TLS1_AD_DECRYPT_ERROR
  1628. #define SSL_AD_EXPORT_RESTRICTION TLS1_AD_EXPORT_RESTRICTION /* fatal */
  1629. #define SSL_AD_PROTOCOL_VERSION TLS1_AD_PROTOCOL_VERSION /* fatal */
  1630. #define SSL_AD_INSUFFICIENT_SECURITY TLS1_AD_INSUFFICIENT_SECURITY /* fatal */
  1631. #define SSL_AD_INTERNAL_ERROR TLS1_AD_INTERNAL_ERROR /* fatal */
  1632. #define SSL_AD_USER_CANCELLED TLS1_AD_USER_CANCELLED
  1633. #define SSL_AD_NO_RENEGOTIATION TLS1_AD_NO_RENEGOTIATION
  1634. #define SSL_AD_UNSUPPORTED_EXTENSION TLS1_AD_UNSUPPORTED_EXTENSION
  1635. #define SSL_AD_CERTIFICATE_UNOBTAINABLE TLS1_AD_CERTIFICATE_UNOBTAINABLE
  1636. #define SSL_AD_UNRECOGNIZED_NAME TLS1_AD_UNRECOGNIZED_NAME
  1637. #define SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE \
  1638. TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE
  1639. #define SSL_AD_BAD_CERTIFICATE_HASH_VALUE TLS1_AD_BAD_CERTIFICATE_HASH_VALUE
  1640. #define SSL_AD_UNKNOWN_PSK_IDENTITY TLS1_AD_UNKNOWN_PSK_IDENTITY /* fatal */
  1641. #define SSL_AD_INAPPROPRIATE_FALLBACK SSL3_AD_INAPPROPRIATE_FALLBACK /* fatal */
  1642. #define SSL_ERROR_NONE 0
  1643. #define SSL_ERROR_SSL 1
  1644. #define SSL_ERROR_WANT_READ 2
  1645. #define SSL_ERROR_WANT_WRITE 3
  1646. #define SSL_ERROR_WANT_X509_LOOKUP 4
  1647. #define SSL_ERROR_SYSCALL 5 /* look at error stack/return value/errno */
  1648. #define SSL_ERROR_ZERO_RETURN 6
  1649. #define SSL_ERROR_WANT_CONNECT 7
  1650. #define SSL_ERROR_WANT_ACCEPT 8
  1651. #define SSL_ERROR_WANT_CHANNEL_ID_LOOKUP 9
  1652. #define SSL_ERROR_PENDING_SESSION 11
  1653. #define SSL_ERROR_PENDING_CERTIFICATE 12
  1654. #define SSL_ERROR_WANT_PRIVATE_KEY_OPERATION 13
  1655. /* DTLSv1_get_timeout queries the next DTLS handshake timeout. If there is a
  1656. * timeout in progress, it sets |*out| to the time remaining and returns one.
  1657. * Otherwise, it returns zero.
  1658. *
  1659. * When the timeout expires, call |DTLSv1_handle_timeout| to handle the
  1660. * retransmit behavior.
  1661. *
  1662. * NOTE: This function must be queried again whenever the handshake state
  1663. * machine changes, including when |DTLSv1_handle_timeout| is called. */
  1664. OPENSSL_EXPORT int DTLSv1_get_timeout(const SSL *ssl, struct timeval *out);
  1665. /* DTLSv1_handle_timeout is called when a DTLS handshake timeout expires. If no
  1666. * timeout had expired, it returns 0. Otherwise, it retransmits the previous
  1667. * flight of handshake messages and returns 1. If too many timeouts had expired
  1668. * without progress or an error occurs, it returns -1.
  1669. *
  1670. * NOTE: The caller's external timer should be compatible with the one |ssl|
  1671. * queries within some fudge factor. Otherwise, the call will be a no-op, but
  1672. * |DTLSv1_get_timeout| will return an updated timeout.
  1673. *
  1674. * WARNING: This function breaks the usual return value convention. */
  1675. OPENSSL_EXPORT int DTLSv1_handle_timeout(SSL *ssl);
  1676. /* SSL_session_reused returns one if |ssl| performed an abbreviated handshake
  1677. * and zero otherwise.
  1678. *
  1679. * TODO(davidben): Hammer down the semantics of this API while a handshake,
  1680. * initial or renego, is in progress. */
  1681. OPENSSL_EXPORT int SSL_session_reused(const SSL *ssl);
  1682. /* SSL_total_renegotiations returns the total number of renegotiation handshakes
  1683. * peformed by |ssl|. This includes the pending renegotiation, if any. */
  1684. OPENSSL_EXPORT int SSL_total_renegotiations(const SSL *ssl);
  1685. /* SSL_CTX_set_tmp_dh configures |ctx| to use the group from |dh| as the group
  1686. * for DHE. Only the group is used, so |dh| needn't have a keypair. It returns
  1687. * one on success and zero on error. */
  1688. OPENSSL_EXPORT int SSL_CTX_set_tmp_dh(SSL_CTX *ctx, const DH *dh);
  1689. /* SSL_set_tmp_dh configures |ssl| to use the group from |dh| as the group for
  1690. * DHE. Only the group is used, so |dh| needn't have a keypair. It returns one
  1691. * on success and zero on error. */
  1692. OPENSSL_EXPORT int SSL_set_tmp_dh(SSL *ssl, const DH *dh);
  1693. /* SSL_CTX_set_tmp_ecdh configures |ctx| to use the curve from |ecdh| as the
  1694. * curve for ephemeral ECDH keys. For historical reasons, this API expects an
  1695. * |EC_KEY|, but only the curve is used. It returns one on success and zero on
  1696. * error. If unset, an appropriate curve will be chosen automatically. (This is
  1697. * recommended.) */
  1698. OPENSSL_EXPORT int SSL_CTX_set_tmp_ecdh(SSL_CTX *ctx, const EC_KEY *ec_key);
  1699. /* SSL_set_tmp_ecdh configures |ssl| to use the curve from |ecdh| as the curve
  1700. * for ephemeral ECDH keys. For historical reasons, this API expects an
  1701. * |EC_KEY|, but only the curve is used. It returns one on success and zero on
  1702. * error. If unset, an appropriate curve will be chosen automatically. (This is
  1703. * recommended.) */
  1704. OPENSSL_EXPORT int SSL_set_tmp_ecdh(SSL *ssl, const EC_KEY *ec_key);
  1705. /* SSL_CTX_enable_tls_channel_id either configures a TLS server to accept TLS
  1706. * client IDs from clients, or configures a client to send TLS client IDs to
  1707. * a server. It returns one. */
  1708. OPENSSL_EXPORT int SSL_CTX_enable_tls_channel_id(SSL_CTX *ctx);
  1709. /* SSL_enable_tls_channel_id either configures a TLS server to accept TLS
  1710. * client IDs from clients, or configure a client to send TLS client IDs to
  1711. * server. It returns one. */
  1712. OPENSSL_EXPORT int SSL_enable_tls_channel_id(SSL *ssl);
  1713. /* SSL_CTX_set1_tls_channel_id configures a TLS client to send a TLS Channel ID
  1714. * to compatible servers. |private_key| must be a P-256 EC key. It returns one
  1715. * on success and zero on error. */
  1716. OPENSSL_EXPORT int SSL_CTX_set1_tls_channel_id(SSL_CTX *ctx,
  1717. EVP_PKEY *private_key);
  1718. /* SSL_set1_tls_channel_id configures a TLS client to send a TLS Channel ID to
  1719. * compatible servers. |private_key| must be a P-256 EC key. It returns one on
  1720. * success and zero on error. */
  1721. OPENSSL_EXPORT int SSL_set1_tls_channel_id(SSL *ssl, EVP_PKEY *private_key);
  1722. /* SSL_get_tls_channel_id gets the client's TLS Channel ID from a server SSL*
  1723. * and copies up to the first |max_out| bytes into |out|. The Channel ID
  1724. * consists of the client's P-256 public key as an (x,y) pair where each is a
  1725. * 32-byte, big-endian field element. It returns 0 if the client didn't offer a
  1726. * Channel ID and the length of the complete Channel ID otherwise. */
  1727. OPENSSL_EXPORT size_t SSL_get_tls_channel_id(SSL *ssl, uint8_t *out,
  1728. size_t max_out);
  1729. /* SSL_get0_certificate_types, for a client, sets |*out_types| to an array
  1730. * containing the client certificate types requested by a server. It returns the
  1731. * length of the array. */
  1732. OPENSSL_EXPORT size_t SSL_get0_certificate_types(SSL *ssl,
  1733. const uint8_t **out_types);
  1734. /* SSL_CTX_set1_curves sets the preferred curves for |ctx| to be |curves|. Each
  1735. * element of |curves| should be a curve nid. It returns one on success and
  1736. * zero on failure. */
  1737. OPENSSL_EXPORT int SSL_CTX_set1_curves(SSL_CTX *ctx, const int *curves,
  1738. size_t curves_len);
  1739. /* SSL_set1_curves sets the preferred curves for |ssl| to be |curves|. Each
  1740. * element of |curves| should be a curve nid. It returns one on success and
  1741. * zero on failure. */
  1742. OPENSSL_EXPORT int SSL_set1_curves(SSL *ssl, const int *curves,
  1743. size_t curves_len);
  1744. OPENSSL_EXPORT int SSL_CTX_set_cipher_list(SSL_CTX *, const char *str);
  1745. OPENSSL_EXPORT int SSL_CTX_set_cipher_list_tls11(SSL_CTX *, const char *str);
  1746. OPENSSL_EXPORT long SSL_CTX_set_timeout(SSL_CTX *ctx, long t);
  1747. OPENSSL_EXPORT long SSL_CTX_get_timeout(const SSL_CTX *ctx);
  1748. OPENSSL_EXPORT X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *);
  1749. OPENSSL_EXPORT void SSL_CTX_set_cert_store(SSL_CTX *, X509_STORE *);
  1750. OPENSSL_EXPORT int SSL_want(const SSL *s);
  1751. OPENSSL_EXPORT void SSL_CTX_flush_sessions(SSL_CTX *ctx, long tm);
  1752. /* SSL_get_current_cipher returns the cipher used in the current outgoing
  1753. * connection state, or NULL if the null cipher is active. */
  1754. OPENSSL_EXPORT const SSL_CIPHER *SSL_get_current_cipher(const SSL *s);
  1755. OPENSSL_EXPORT int SSL_get_fd(const SSL *s);
  1756. OPENSSL_EXPORT int SSL_get_rfd(const SSL *s);
  1757. OPENSSL_EXPORT int SSL_get_wfd(const SSL *s);
  1758. OPENSSL_EXPORT const char *SSL_get_cipher_list(const SSL *s, int n);
  1759. OPENSSL_EXPORT int SSL_pending(const SSL *s);
  1760. OPENSSL_EXPORT int SSL_set_fd(SSL *s, int fd);
  1761. OPENSSL_EXPORT int SSL_set_rfd(SSL *s, int fd);
  1762. OPENSSL_EXPORT int SSL_set_wfd(SSL *s, int fd);
  1763. OPENSSL_EXPORT void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio);
  1764. OPENSSL_EXPORT BIO *SSL_get_rbio(const SSL *s);
  1765. OPENSSL_EXPORT BIO *SSL_get_wbio(const SSL *s);
  1766. OPENSSL_EXPORT int SSL_set_cipher_list(SSL *s, const char *str);
  1767. OPENSSL_EXPORT int SSL_get_verify_mode(const SSL *s);
  1768. OPENSSL_EXPORT int SSL_get_verify_depth(const SSL *s);
  1769. OPENSSL_EXPORT int (*SSL_get_verify_callback(const SSL *s))(int,
  1770. X509_STORE_CTX *);
  1771. OPENSSL_EXPORT void SSL_set_verify(SSL *s, int mode,
  1772. int (*callback)(int ok,
  1773. X509_STORE_CTX *ctx));
  1774. OPENSSL_EXPORT void SSL_set_verify_depth(SSL *s, int depth);
  1775. OPENSSL_EXPORT STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file);
  1776. OPENSSL_EXPORT int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *
  1777. stackCAs,
  1778. const char *file);
  1779. OPENSSL_EXPORT int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *
  1780. stackCAs,
  1781. const char *dir);
  1782. /* SSL_load_error_strings does nothing. */
  1783. OPENSSL_EXPORT void SSL_load_error_strings(void);
  1784. OPENSSL_EXPORT const char *SSL_state_string(const SSL *s);
  1785. OPENSSL_EXPORT const char *SSL_state_string_long(const SSL *s);
  1786. OPENSSL_EXPORT long SSL_SESSION_get_time(const SSL_SESSION *s);
  1787. OPENSSL_EXPORT long SSL_SESSION_set_time(SSL_SESSION *s, long t);
  1788. OPENSSL_EXPORT long SSL_SESSION_get_timeout(const SSL_SESSION *s);
  1789. OPENSSL_EXPORT long SSL_SESSION_set_timeout(SSL_SESSION *s, long t);
  1790. /* SSL_SESSION_get_key_exchange_info returns a value that describes the
  1791. * strength of the asymmetric operation that provides confidentiality to
  1792. * |session|. Its interpretation depends on the operation used. See the
  1793. * documentation for this value in the |SSL_SESSION| structure. */
  1794. OPENSSL_EXPORT uint32_t SSL_SESSION_get_key_exchange_info(SSL_SESSION *session);
  1795. OPENSSL_EXPORT X509 *SSL_SESSION_get0_peer(SSL_SESSION *s);
  1796. OPENSSL_EXPORT int SSL_SESSION_set1_id_context(SSL_SESSION *s,
  1797. const uint8_t *sid_ctx,
  1798. unsigned int sid_ctx_len);
  1799. OPENSSL_EXPORT SSL_SESSION *SSL_SESSION_new(void);
  1800. OPENSSL_EXPORT const uint8_t *SSL_SESSION_get_id(const SSL_SESSION *s,
  1801. unsigned int *len);
  1802. OPENSSL_EXPORT int SSL_SESSION_print_fp(FILE *fp, const SSL_SESSION *ses);
  1803. OPENSSL_EXPORT int SSL_SESSION_print(BIO *fp, const SSL_SESSION *ses);
  1804. /* SSL_SESSION_up_ref, if |session| is not NULL, increments the reference count
  1805. * of |session|. It then returns |session|. */
  1806. OPENSSL_EXPORT SSL_SESSION *SSL_SESSION_up_ref(SSL_SESSION *session);
  1807. /* SSL_SESSION_free decrements the reference count of |session|. If it reaches
  1808. * zero, all data referenced by |session| and |session| itself are released. */
  1809. OPENSSL_EXPORT void SSL_SESSION_free(SSL_SESSION *session);
  1810. OPENSSL_EXPORT int SSL_set_session(SSL *to, SSL_SESSION *session);
  1811. OPENSSL_EXPORT int SSL_CTX_add_session(SSL_CTX *s, SSL_SESSION *c);
  1812. OPENSSL_EXPORT int SSL_CTX_remove_session(SSL_CTX *, SSL_SESSION *c);
  1813. OPENSSL_EXPORT int SSL_CTX_set_generate_session_id(SSL_CTX *, GEN_SESSION_CB);
  1814. OPENSSL_EXPORT int SSL_set_generate_session_id(SSL *, GEN_SESSION_CB);
  1815. OPENSSL_EXPORT int SSL_has_matching_session_id(const SSL *ssl,
  1816. const uint8_t *id,
  1817. unsigned int id_len);
  1818. /* SSL_SESSION_to_bytes serializes |in| into a newly allocated buffer and sets
  1819. * |*out_data| to that buffer and |*out_len| to its length. The caller takes
  1820. * ownership of the buffer and must call |OPENSSL_free| when done. It returns
  1821. * one on success and zero on error. */
  1822. OPENSSL_EXPORT int SSL_SESSION_to_bytes(SSL_SESSION *in, uint8_t **out_data,
  1823. size_t *out_len);
  1824. /* SSL_SESSION_to_bytes_for_ticket serializes |in|, but excludes the session
  1825. * identification information, namely the session ID and ticket. */
  1826. OPENSSL_EXPORT int SSL_SESSION_to_bytes_for_ticket(SSL_SESSION *in,
  1827. uint8_t **out_data,
  1828. size_t *out_len);
  1829. /* SSL_SESSION_from_bytes parses |in_len| bytes from |in| as an SSL_SESSION. It
  1830. * returns a newly-allocated |SSL_SESSION| on success or NULL on error. */
  1831. OPENSSL_EXPORT SSL_SESSION *SSL_SESSION_from_bytes(const uint8_t *in,
  1832. size_t in_len);
  1833. /* Deprecated: i2d_SSL_SESSION serializes |in| to the bytes pointed to by
  1834. * |*pp|. On success, it returns the number of bytes written and advances |*pp|
  1835. * by that many bytes. On failure, it returns -1. If |pp| is NULL, no bytes are
  1836. * written and only the length is returned.
  1837. *
  1838. * Use |SSL_SESSION_to_bytes| instead. */
  1839. OPENSSL_EXPORT int i2d_SSL_SESSION(SSL_SESSION *in, uint8_t **pp);
  1840. /* Deprecated: d2i_SSL_SESSION parses a serialized session from the |length|
  1841. * bytes pointed to by |*pp|. It returns the new |SSL_SESSION| and advances
  1842. * |*pp| by the number of bytes consumed on success and NULL on failure. The
  1843. * caller takes ownership of the new session and must call |SSL_SESSION_free|
  1844. * when done.
  1845. *
  1846. * If |a| is non-NULL, |*a| is released and set the new |SSL_SESSION|.
  1847. *
  1848. * Use |SSL_SESSION_from_bytes| instead. */
  1849. OPENSSL_EXPORT SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const uint8_t **pp,
  1850. long length);
  1851. /* SSL_get_peer_certificate returns the peer's leaf certificate or NULL if the
  1852. * peer did not use certificates. The caller must call |X509_free| on the
  1853. * result to release it. */
  1854. OPENSSL_EXPORT X509 *SSL_get_peer_certificate(const SSL *ssl);
  1855. /* SSL_get_peer_cert_chain returns the peer's certificate chain or NULL if
  1856. * unavailable or the peer did not use certificates. For historical reasons,
  1857. * this may not be available if resuming a serialized |SSL_SESSION|. The caller
  1858. * does not take ownership of the result.
  1859. *
  1860. * WARNING: This function behaves differently between client and server. If
  1861. * |ssl| is a server, the returned chain does not include the leaf certificate.
  1862. * If a client, it does. */
  1863. OPENSSL_EXPORT STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *ssl);
  1864. OPENSSL_EXPORT int SSL_CTX_get_verify_mode(const SSL_CTX *ctx);
  1865. OPENSSL_EXPORT int SSL_CTX_get_verify_depth(const SSL_CTX *ctx);
  1866. OPENSSL_EXPORT int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(
  1867. int, X509_STORE_CTX *);
  1868. OPENSSL_EXPORT void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
  1869. int (*callback)(int, X509_STORE_CTX *));
  1870. OPENSSL_EXPORT void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth);
  1871. OPENSSL_EXPORT void SSL_CTX_set_cert_verify_callback(
  1872. SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *, void *), void *arg);
  1873. OPENSSL_EXPORT void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx,
  1874. pem_password_cb *cb);
  1875. OPENSSL_EXPORT void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,
  1876. void *u);
  1877. OPENSSL_EXPORT int SSL_CTX_set_session_id_context(SSL_CTX *ctx,
  1878. const uint8_t *sid_ctx,
  1879. unsigned int sid_ctx_len);
  1880. OPENSSL_EXPORT int SSL_set_session_id_context(SSL *ssl, const uint8_t *sid_ctx,
  1881. unsigned int sid_ctx_len);
  1882. OPENSSL_EXPORT int SSL_CTX_set_purpose(SSL_CTX *s, int purpose);
  1883. OPENSSL_EXPORT int SSL_set_purpose(SSL *s, int purpose);
  1884. OPENSSL_EXPORT int SSL_CTX_set_trust(SSL_CTX *s, int trust);
  1885. OPENSSL_EXPORT int SSL_set_trust(SSL *s, int trust);
  1886. OPENSSL_EXPORT int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm);
  1887. OPENSSL_EXPORT int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm);
  1888. OPENSSL_EXPORT X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx);
  1889. OPENSSL_EXPORT X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl);
  1890. OPENSSL_EXPORT int SSL_accept(SSL *ssl);
  1891. OPENSSL_EXPORT int SSL_connect(SSL *ssl);
  1892. OPENSSL_EXPORT int SSL_read(SSL *ssl, void *buf, int num);
  1893. OPENSSL_EXPORT int SSL_peek(SSL *ssl, void *buf, int num);
  1894. OPENSSL_EXPORT int SSL_write(SSL *ssl, const void *buf, int num);
  1895. OPENSSL_EXPORT int SSL_get_error(const SSL *s, int ret_code);
  1896. /* SSL_get_version returns a string describing the TLS version used by |s|. For
  1897. * example, "TLSv1.2" or "SSLv3". */
  1898. OPENSSL_EXPORT const char *SSL_get_version(const SSL *s);
  1899. /* SSL_SESSION_get_version returns a string describing the TLS version used by
  1900. * |sess|. For example, "TLSv1.2" or "SSLv3". */
  1901. OPENSSL_EXPORT const char *SSL_SESSION_get_version(const SSL_SESSION *sess);
  1902. /* SSL_get_curve_name returns a human-readable name for the elliptic curve
  1903. * specified by the given TLS curve id, or NULL if the curve if unknown. */
  1904. OPENSSL_EXPORT const char* SSL_get_curve_name(uint16_t curve_id);
  1905. OPENSSL_EXPORT STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s);
  1906. OPENSSL_EXPORT int SSL_do_handshake(SSL *s);
  1907. /* SSL_renegotiate_pending returns one if |ssl| is in the middle of a
  1908. * renegotiation. */
  1909. OPENSSL_EXPORT int SSL_renegotiate_pending(SSL *ssl);
  1910. OPENSSL_EXPORT int SSL_shutdown(SSL *s);
  1911. OPENSSL_EXPORT const char *SSL_alert_type_string_long(int value);
  1912. OPENSSL_EXPORT const char *SSL_alert_type_string(int value);
  1913. OPENSSL_EXPORT const char *SSL_alert_desc_string_long(int value);
  1914. OPENSSL_EXPORT const char *SSL_alert_desc_string(int value);
  1915. OPENSSL_EXPORT void SSL_set_client_CA_list(SSL *s,
  1916. STACK_OF(X509_NAME) *name_list);
  1917. OPENSSL_EXPORT void SSL_CTX_set_client_CA_list(SSL_CTX *ctx,
  1918. STACK_OF(X509_NAME) *name_list);
  1919. OPENSSL_EXPORT STACK_OF(X509_NAME) *SSL_get_client_CA_list(const SSL *s);
  1920. OPENSSL_EXPORT STACK_OF(X509_NAME) *
  1921. SSL_CTX_get_client_CA_list(const SSL_CTX *s);
  1922. OPENSSL_EXPORT int SSL_add_client_CA(SSL *ssl, X509 *x);
  1923. OPENSSL_EXPORT int SSL_CTX_add_client_CA(SSL_CTX *ctx, X509 *x);
  1924. OPENSSL_EXPORT long SSL_get_default_timeout(const SSL *s);
  1925. OPENSSL_EXPORT STACK_OF(X509_NAME) *SSL_dup_CA_list(STACK_OF(X509_NAME) *sk);
  1926. OPENSSL_EXPORT void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode);
  1927. OPENSSL_EXPORT int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx);
  1928. OPENSSL_EXPORT void SSL_set_quiet_shutdown(SSL *ssl, int mode);
  1929. OPENSSL_EXPORT int SSL_get_quiet_shutdown(const SSL *ssl);
  1930. OPENSSL_EXPORT void SSL_set_shutdown(SSL *ssl, int mode);
  1931. OPENSSL_EXPORT int SSL_get_shutdown(const SSL *ssl);
  1932. OPENSSL_EXPORT int SSL_version(const SSL *ssl);
  1933. OPENSSL_EXPORT int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx);
  1934. OPENSSL_EXPORT int SSL_CTX_load_verify_locations(SSL_CTX *ctx,
  1935. const char *CAfile,
  1936. const char *CApath);
  1937. #define SSL_get0_session SSL_get_session /* just peek at pointer */
  1938. OPENSSL_EXPORT SSL_SESSION *SSL_get_session(const SSL *ssl);
  1939. OPENSSL_EXPORT SSL_SESSION *SSL_get1_session(
  1940. SSL *ssl); /* obtain a reference count */
  1941. OPENSSL_EXPORT SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl);
  1942. OPENSSL_EXPORT SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx);
  1943. OPENSSL_EXPORT void SSL_set_info_callback(SSL *ssl,
  1944. void (*cb)(const SSL *ssl, int type,
  1945. int val));
  1946. OPENSSL_EXPORT void (*SSL_get_info_callback(const SSL *ssl))(const SSL *ssl,
  1947. int type, int val);
  1948. OPENSSL_EXPORT int SSL_state(const SSL *ssl);
  1949. OPENSSL_EXPORT void SSL_set_verify_result(SSL *ssl, long v);
  1950. OPENSSL_EXPORT long SSL_get_verify_result(const SSL *ssl);
  1951. OPENSSL_EXPORT int SSL_set_ex_data(SSL *ssl, int idx, void *data);
  1952. OPENSSL_EXPORT void *SSL_get_ex_data(const SSL *ssl, int idx);
  1953. OPENSSL_EXPORT int SSL_get_ex_new_index(long argl, void *argp,
  1954. CRYPTO_EX_new *new_func,
  1955. CRYPTO_EX_dup *dup_func,
  1956. CRYPTO_EX_free *free_func);
  1957. OPENSSL_EXPORT int SSL_SESSION_set_ex_data(SSL_SESSION *ss, int idx,
  1958. void *data);
  1959. OPENSSL_EXPORT void *SSL_SESSION_get_ex_data(const SSL_SESSION *ss, int idx);
  1960. OPENSSL_EXPORT int SSL_SESSION_get_ex_new_index(long argl, void *argp,
  1961. CRYPTO_EX_new *new_func,
  1962. CRYPTO_EX_dup *dup_func,
  1963. CRYPTO_EX_free *free_func);
  1964. OPENSSL_EXPORT int SSL_CTX_set_ex_data(SSL_CTX *ssl, int idx, void *data);
  1965. OPENSSL_EXPORT void *SSL_CTX_get_ex_data(const SSL_CTX *ssl, int idx);
  1966. OPENSSL_EXPORT int SSL_CTX_get_ex_new_index(long argl, void *argp,
  1967. CRYPTO_EX_new *new_func,
  1968. CRYPTO_EX_dup *dup_func,
  1969. CRYPTO_EX_free *free_func);
  1970. OPENSSL_EXPORT int SSL_get_ex_data_X509_STORE_CTX_idx(void);
  1971. /* SSL_CTX_sess_set_cache_size sets the maximum size of |ctx|'s session cache to
  1972. * |size|. It returns the previous value. */
  1973. OPENSSL_EXPORT unsigned long SSL_CTX_sess_set_cache_size(SSL_CTX *ctx,
  1974. unsigned long size);
  1975. /* SSL_CTX_sess_get_cache_size returns the maximum size of |ctx|'s session
  1976. * cache. */
  1977. OPENSSL_EXPORT unsigned long SSL_CTX_sess_get_cache_size(const SSL_CTX *ctx);
  1978. /* SSL_SESS_CACHE_* are the possible session cache mode bits.
  1979. * TODO(davidben): Document. */
  1980. #define SSL_SESS_CACHE_OFF 0x0000
  1981. #define SSL_SESS_CACHE_CLIENT 0x0001
  1982. #define SSL_SESS_CACHE_SERVER 0x0002
  1983. #define SSL_SESS_CACHE_BOTH (SSL_SESS_CACHE_CLIENT | SSL_SESS_CACHE_SERVER)
  1984. #define SSL_SESS_CACHE_NO_AUTO_CLEAR 0x0080
  1985. #define SSL_SESS_CACHE_NO_INTERNAL_LOOKUP 0x0100
  1986. #define SSL_SESS_CACHE_NO_INTERNAL_STORE 0x0200
  1987. #define SSL_SESS_CACHE_NO_INTERNAL \
  1988. (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP | SSL_SESS_CACHE_NO_INTERNAL_STORE)
  1989. /* SSL_CTX_set_session_cache_mode sets the session cache mode bits for |ctx| to
  1990. * |mode|. It returns the previous value. */
  1991. OPENSSL_EXPORT int SSL_CTX_set_session_cache_mode(SSL_CTX *ctx, int mode);
  1992. /* SSL_CTX_get_session_cache_mode returns the session cache mode bits for
  1993. * |ctx| */
  1994. OPENSSL_EXPORT int SSL_CTX_get_session_cache_mode(const SSL_CTX *ctx);
  1995. /* SSL_CTX_get_max_cert_list returns the maximum length, in bytes, of a peer
  1996. * certificate chain accepted by |ctx|. */
  1997. OPENSSL_EXPORT size_t SSL_CTX_get_max_cert_list(const SSL_CTX *ctx);
  1998. /* SSL_CTX_set_max_cert_list sets the maximum length, in bytes, of a peer
  1999. * certificate chain to |max_cert_list|. This affects how much memory may be
  2000. * consumed during the handshake. */
  2001. OPENSSL_EXPORT void SSL_CTX_set_max_cert_list(SSL_CTX *ctx,
  2002. size_t max_cert_list);
  2003. /* SSL_get_max_cert_list returns the maximum length, in bytes, of a peer
  2004. * certificate chain accepted by |ssl|. */
  2005. OPENSSL_EXPORT size_t SSL_get_max_cert_list(const SSL *ssl);
  2006. /* SSL_set_max_cert_list sets the maximum length, in bytes, of a peer
  2007. * certificate chain to |max_cert_list|. This affects how much memory may be
  2008. * consumed during the handshake. */
  2009. OPENSSL_EXPORT void SSL_set_max_cert_list(SSL *ssl, size_t max_cert_list);
  2010. /* SSL_CTX_set_max_send_fragment sets the maximum length, in bytes, of records
  2011. * sent by |ctx|. Beyond this length, handshake messages and application data
  2012. * will be split into multiple records. */
  2013. OPENSSL_EXPORT void SSL_CTX_set_max_send_fragment(SSL_CTX *ctx,
  2014. size_t max_send_fragment);
  2015. /* SSL_set_max_send_fragment sets the maximum length, in bytes, of records
  2016. * sent by |ssl|. Beyond this length, handshake messages and application data
  2017. * will be split into multiple records. */
  2018. OPENSSL_EXPORT void SSL_set_max_send_fragment(SSL *ssl,
  2019. size_t max_send_fragment);
  2020. /* SSL_CTX_set_tmp_dh_callback configures |ctx| to use |callback| to determine
  2021. * the group for DHE ciphers. |callback| should ignore |is_export| and
  2022. * |keylength| and return a |DH| of the selected group or NULL on error. Only
  2023. * the parameters are used, so the |DH| needn't have a generated keypair.
  2024. *
  2025. * WARNING: The caller does not take ownership of the resulting |DH|, so
  2026. * |callback| must save and release the object elsewhere. */
  2027. OPENSSL_EXPORT void SSL_CTX_set_tmp_dh_callback(
  2028. SSL_CTX *ctx, DH *(*callback)(SSL *ssl, int is_export, int keylength));
  2029. /* SSL_set_tmp_dh_callback configures |ssl| to use |callback| to determine the
  2030. * group for DHE ciphers. |callback| should ignore |is_export| and |keylength|
  2031. * and return a |DH| of the selected group or NULL on error. Only the
  2032. * parameters are used, so the |DH| needn't have a generated keypair.
  2033. *
  2034. * WARNING: The caller does not take ownership of the resulting |DH|, so
  2035. * |callback| must save and release the object elsewhere. */
  2036. OPENSSL_EXPORT void SSL_set_tmp_dh_callback(SSL *ssl,
  2037. DH *(*dh)(SSL *ssl, int is_export,
  2038. int keylength));
  2039. /* SSL_CTX_set_tmp_ecdh_callback configures |ctx| to use |callback| to determine
  2040. * the curve for ephemeral ECDH keys. |callback| should ignore |is_export| and
  2041. * |keylength| and return an |EC_KEY| of the selected curve or NULL on
  2042. * error. Only the curve is used, so the |EC_KEY| needn't have a generated
  2043. * keypair.
  2044. *
  2045. * If the callback is unset, an appropriate curve will be chosen automatically.
  2046. * (This is recommended.)
  2047. *
  2048. * WARNING: The caller does not take ownership of the resulting |EC_KEY|, so
  2049. * |callback| must save and release the object elsewhere. */
  2050. OPENSSL_EXPORT void SSL_CTX_set_tmp_ecdh_callback(
  2051. SSL_CTX *ctx, EC_KEY *(*callback)(SSL *ssl, int is_export, int keylength));
  2052. /* SSL_set_tmp_ecdh_callback configures |ssl| to use |callback| to determine the
  2053. * curve for ephemeral ECDH keys. |callback| should ignore |is_export| and
  2054. * |keylength| and return an |EC_KEY| of the selected curve or NULL on
  2055. * error. Only the curve is used, so the |EC_KEY| needn't have a generated
  2056. * keypair.
  2057. *
  2058. * If the callback is unset, an appropriate curve will be chosen automatically.
  2059. * (This is recommended.)
  2060. *
  2061. * WARNING: The caller does not take ownership of the resulting |EC_KEY|, so
  2062. * |callback| must save and release the object elsewhere. */
  2063. OPENSSL_EXPORT void SSL_set_tmp_ecdh_callback(
  2064. SSL *ssl, EC_KEY *(*callback)(SSL *ssl, int is_export, int keylength));
  2065. typedef void COMP_METHOD;
  2066. /* SSL_get_current_compression returns NULL. */
  2067. OPENSSL_EXPORT const COMP_METHOD *SSL_get_current_compression(SSL *s);
  2068. /* SSL_get_current_expansion returns NULL. */
  2069. OPENSSL_EXPORT const COMP_METHOD *SSL_get_current_expansion(SSL *s);
  2070. OPENSSL_EXPORT int SSL_cache_hit(SSL *s);
  2071. OPENSSL_EXPORT int SSL_is_server(SSL *s);
  2072. /* SSL_CTX_set_dos_protection_cb sets a callback that is called once the
  2073. * resumption decision for a ClientHello has been made. It can return 1 to
  2074. * allow the handshake to continue or zero to cause the handshake to abort. */
  2075. OPENSSL_EXPORT void SSL_CTX_set_dos_protection_cb(
  2076. SSL_CTX *ctx, int (*cb)(const struct ssl_early_callback_ctx *));
  2077. /* SSL_get_structure_sizes returns the sizes of the SSL, SSL_CTX and
  2078. * SSL_SESSION structures so that a test can ensure that outside code agrees on
  2079. * these values. */
  2080. OPENSSL_EXPORT void SSL_get_structure_sizes(size_t *ssl_size,
  2081. size_t *ssl_ctx_size,
  2082. size_t *ssl_session_size);
  2083. /* ERR_load_SSL_strings does nothing. */
  2084. OPENSSL_EXPORT void ERR_load_SSL_strings(void);
  2085. /* SSL_get_rc4_state sets |*read_key| and |*write_key| to the RC4 states for
  2086. * the read and write directions. It returns one on success or zero if |ssl|
  2087. * isn't using an RC4-based cipher suite. */
  2088. OPENSSL_EXPORT int SSL_get_rc4_state(const SSL *ssl, const RC4_KEY **read_key,
  2089. const RC4_KEY **write_key);
  2090. /* Deprecated functions. */
  2091. /* SSL_CIPHER_description writes a description of |cipher| into |buf| and
  2092. * returns |buf|. If |buf| is NULL, it returns a newly allocated string, to be
  2093. * freed with |OPENSSL_free|, or NULL on error.
  2094. *
  2095. * The description includes a trailing newline and has the form:
  2096. * AES128-SHA SSLv3 Kx=RSA Au=RSA Enc=AES(128) Mac=SHA1
  2097. *
  2098. * Consider |SSL_CIPHER_get_name| or |SSL_CIPHER_get_rfc_name| instead. */
  2099. OPENSSL_EXPORT const char *SSL_CIPHER_description(const SSL_CIPHER *cipher,
  2100. char *buf, int len);
  2101. /* SSL_CIPHER_get_version returns the string "TLSv1/SSLv3". */
  2102. OPENSSL_EXPORT const char *SSL_CIPHER_get_version(const SSL_CIPHER *cipher);
  2103. /* SSL_COMP_get_compression_methods returns NULL. */
  2104. OPENSSL_EXPORT COMP_METHOD *SSL_COMP_get_compression_methods(void);
  2105. /* SSL_COMP_add_compression_method returns one. */
  2106. OPENSSL_EXPORT int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm);
  2107. /* SSL_COMP_get_name returns NULL. */
  2108. OPENSSL_EXPORT const char *SSL_COMP_get_name(const COMP_METHOD *comp);
  2109. /* SSLv23_method calls |TLS_method|. */
  2110. OPENSSL_EXPORT const SSL_METHOD *SSLv23_method(void);
  2111. /* Version-specific methods behave exactly like |TLS_method| and |DTLS_method|
  2112. * except they also call |SSL_CTX_set_min_version| and |SSL_CTX_set_max_version|
  2113. * to lock connections to that protocol version. */
  2114. OPENSSL_EXPORT const SSL_METHOD *SSLv3_method(void);
  2115. OPENSSL_EXPORT const SSL_METHOD *TLSv1_method(void);
  2116. OPENSSL_EXPORT const SSL_METHOD *TLSv1_1_method(void);
  2117. OPENSSL_EXPORT const SSL_METHOD *TLSv1_2_method(void);
  2118. OPENSSL_EXPORT const SSL_METHOD *DTLSv1_method(void);
  2119. OPENSSL_EXPORT const SSL_METHOD *DTLSv1_2_method(void);
  2120. /* Client- and server-specific methods call their corresponding generic
  2121. * methods. */
  2122. OPENSSL_EXPORT const SSL_METHOD *SSLv23_server_method(void);
  2123. OPENSSL_EXPORT const SSL_METHOD *SSLv23_client_method(void);
  2124. OPENSSL_EXPORT const SSL_METHOD *SSLv3_server_method(void);
  2125. OPENSSL_EXPORT const SSL_METHOD *SSLv3_client_method(void);
  2126. OPENSSL_EXPORT const SSL_METHOD *TLSv1_server_method(void);
  2127. OPENSSL_EXPORT const SSL_METHOD *TLSv1_client_method(void);
  2128. OPENSSL_EXPORT const SSL_METHOD *TLSv1_1_server_method(void);
  2129. OPENSSL_EXPORT const SSL_METHOD *TLSv1_1_client_method(void);
  2130. OPENSSL_EXPORT const SSL_METHOD *TLSv1_2_server_method(void);
  2131. OPENSSL_EXPORT const SSL_METHOD *TLSv1_2_client_method(void);
  2132. OPENSSL_EXPORT const SSL_METHOD *DTLS_server_method(void);
  2133. OPENSSL_EXPORT const SSL_METHOD *DTLS_client_method(void);
  2134. OPENSSL_EXPORT const SSL_METHOD *DTLSv1_server_method(void);
  2135. OPENSSL_EXPORT const SSL_METHOD *DTLSv1_client_method(void);
  2136. OPENSSL_EXPORT const SSL_METHOD *DTLSv1_2_server_method(void);
  2137. OPENSSL_EXPORT const SSL_METHOD *DTLSv1_2_client_method(void);
  2138. /* SSL_clear resets |ssl| to allow another connection and returns one on success
  2139. * or zero on failure. It returns most configuration state but releases memory
  2140. * associated with the current connection.
  2141. *
  2142. * Free |ssl| and create a new one instead. */
  2143. OPENSSL_EXPORT int SSL_clear(SSL *ssl);
  2144. /* SSL_CTX_set_tmp_rsa_callback does nothing. */
  2145. OPENSSL_EXPORT void SSL_CTX_set_tmp_rsa_callback(
  2146. SSL_CTX *ctx, RSA *(*cb)(SSL *ssl, int is_export, int keylength));
  2147. /* SSL_set_tmp_rsa_callback does nothing. */
  2148. OPENSSL_EXPORT void SSL_set_tmp_rsa_callback(SSL *ssl,
  2149. RSA *(*cb)(SSL *ssl, int is_export,
  2150. int keylength));
  2151. /* SSL_CTX_sess_connect returns zero. */
  2152. OPENSSL_EXPORT int SSL_CTX_sess_connect(const SSL_CTX *ctx);
  2153. /* SSL_CTX_sess_connect_good returns zero. */
  2154. OPENSSL_EXPORT int SSL_CTX_sess_connect_good(const SSL_CTX *ctx);
  2155. /* SSL_CTX_sess_connect_renegotiate returns zero. */
  2156. OPENSSL_EXPORT int SSL_CTX_sess_connect_renegotiate(const SSL_CTX *ctx);
  2157. /* SSL_CTX_sess_accept returns zero. */
  2158. OPENSSL_EXPORT int SSL_CTX_sess_accept(const SSL_CTX *ctx);
  2159. /* SSL_CTX_sess_accept_renegotiate returns zero. */
  2160. OPENSSL_EXPORT int SSL_CTX_sess_accept_renegotiate(const SSL_CTX *ctx);
  2161. /* SSL_CTX_sess_accept_good returns zero. */
  2162. OPENSSL_EXPORT int SSL_CTX_sess_accept_good(const SSL_CTX *ctx);
  2163. /* SSL_CTX_sess_hits returns zero. */
  2164. OPENSSL_EXPORT int SSL_CTX_sess_hits(const SSL_CTX *ctx);
  2165. /* SSL_CTX_sess_cb_hits returns zero. */
  2166. OPENSSL_EXPORT int SSL_CTX_sess_cb_hits(const SSL_CTX *ctx);
  2167. /* SSL_CTX_sess_misses returns zero. */
  2168. OPENSSL_EXPORT int SSL_CTX_sess_misses(const SSL_CTX *ctx);
  2169. /* SSL_CTX_sess_timeouts returns zero. */
  2170. OPENSSL_EXPORT int SSL_CTX_sess_timeouts(const SSL_CTX *ctx);
  2171. /* SSL_CTX_sess_cache_full returns zero. */
  2172. OPENSSL_EXPORT int SSL_CTX_sess_cache_full(const SSL_CTX *ctx);
  2173. /* SSL_cutthrough_complete calls |SSL_in_false_start|. */
  2174. OPENSSL_EXPORT int SSL_cutthrough_complete(const SSL *s);
  2175. /* SSL_num_renegotiations calls |SSL_total_renegotiations|. */
  2176. OPENSSL_EXPORT int SSL_num_renegotiations(const SSL *ssl);
  2177. /* SSL_CTX_need_tmp_RSA returns zero. */
  2178. OPENSSL_EXPORT int SSL_CTX_need_tmp_RSA(const SSL_CTX *ctx);
  2179. /* SSL_need_tmp_RSA returns zero. */
  2180. OPENSSL_EXPORT int SSL_need_tmp_RSA(const SSL *ssl);
  2181. /* SSL_CTX_set_tmp_rsa returns one. */
  2182. OPENSSL_EXPORT int SSL_CTX_set_tmp_rsa(SSL_CTX *ctx, const RSA *rsa);
  2183. /* SSL_set_tmp_rsa returns one. */
  2184. OPENSSL_EXPORT int SSL_set_tmp_rsa(SSL *ssl, const RSA *rsa);
  2185. /* SSL_CTX_get_read_ahead returns zero. */
  2186. OPENSSL_EXPORT int SSL_CTX_get_read_ahead(const SSL_CTX *ctx);
  2187. /* SSL_CTX_set_read_ahead does nothing. */
  2188. OPENSSL_EXPORT void SSL_CTX_set_read_ahead(SSL_CTX *ctx, int yes);
  2189. /* SSL_get_read_ahead returns zero. */
  2190. OPENSSL_EXPORT int SSL_get_read_ahead(const SSL *s);
  2191. /* SSL_set_read_ahead does nothing. */
  2192. OPENSSL_EXPORT void SSL_set_read_ahead(SSL *s, int yes);
  2193. /* SSL_renegotiate put an error on the error queue and returns zero. */
  2194. OPENSSL_EXPORT int SSL_renegotiate(SSL *ssl);
  2195. /* SSL_set_state does nothing. */
  2196. OPENSSL_EXPORT void SSL_set_state(SSL *ssl, int state);
  2197. /* Android compatibility section.
  2198. *
  2199. * These functions are declared, temporarily, for Android because
  2200. * wpa_supplicant will take a little time to sync with upstream. Outside of
  2201. * Android they'll have no definition. */
  2202. #define SSL_F_SSL_SET_SESSION_TICKET_EXT doesnt_exist
  2203. OPENSSL_EXPORT int SSL_set_session_ticket_ext(SSL *s, void *ext_data,
  2204. int ext_len);
  2205. OPENSSL_EXPORT int SSL_set_session_secret_cb(SSL *s, void *cb, void *arg);
  2206. OPENSSL_EXPORT int SSL_set_session_ticket_ext_cb(SSL *s, void *cb, void *arg);
  2207. OPENSSL_EXPORT int SSL_set_ssl_method(SSL *s, const SSL_METHOD *method);
  2208. #define OPENSSL_VERSION_TEXT "BoringSSL"
  2209. #define SSLEAY_VERSION 0
  2210. /* SSLeay_version is a compatibility function that returns the string
  2211. * "BoringSSL". */
  2212. OPENSSL_EXPORT const char *SSLeay_version(int unused);
  2213. /* Preprocessor compatibility section.
  2214. *
  2215. * Historically, a number of APIs were implemented in OpenSSL as macros and
  2216. * constants to 'ctrl' functions. To avoid breaking #ifdefs in consumers, this
  2217. * section defines a number of legacy macros.
  2218. *
  2219. * Although using either the CTRL values or their wrapper macros in #ifdefs is
  2220. * still supported, the CTRL values may not be passed to |SSL_ctrl| and
  2221. * |SSL_CTX_ctrl|. Call the functions (previously wrapper macros) instead. */
  2222. #define DTLS_CTRL_GET_TIMEOUT doesnt_exist
  2223. #define DTLS_CTRL_HANDLE_TIMEOUT doesnt_exist
  2224. #define SSL_CTRL_CHAIN doesnt_exist
  2225. #define SSL_CTRL_CHAIN_CERT doesnt_exist
  2226. #define SSL_CTRL_CHANNEL_ID doesnt_exist
  2227. #define SSL_CTRL_CLEAR_EXTRA_CHAIN_CERTS doesnt_exist
  2228. #define SSL_CTRL_CLEAR_MODE doesnt_exist
  2229. #define SSL_CTRL_CLEAR_OPTIONS doesnt_exist
  2230. #define SSL_CTRL_EXTRA_CHAIN_CERT doesnt_exist
  2231. #define SSL_CTRL_GET_CHAIN_CERTS doesnt_exist
  2232. #define SSL_CTRL_GET_CHANNEL_ID doesnt_exist
  2233. #define SSL_CTRL_GET_CLIENT_CERT_TYPES doesnt_exist
  2234. #define SSL_CTRL_GET_EXTRA_CHAIN_CERTS doesnt_exist
  2235. #define SSL_CTRL_GET_MAX_CERT_LIST doesnt_exist
  2236. #define SSL_CTRL_GET_NUM_RENEGOTIATIONS doesnt_exist
  2237. #define SSL_CTRL_GET_READ_AHEAD doesnt_exist
  2238. #define SSL_CTRL_GET_RI_SUPPORT doesnt_exist
  2239. #define SSL_CTRL_GET_SESSION_REUSED doesnt_exist
  2240. #define SSL_CTRL_GET_SESS_CACHE_MODE doesnt_exist
  2241. #define SSL_CTRL_GET_SESS_CACHE_SIZE doesnt_exist
  2242. #define SSL_CTRL_GET_TLSEXT_TICKET_KEYS doesnt_exist
  2243. #define SSL_CTRL_GET_TOTAL_RENEGOTIATIONS doesnt_exist
  2244. #define SSL_CTRL_MODE doesnt_exist
  2245. #define SSL_CTRL_NEED_TMP_RSA doesnt_exist
  2246. #define SSL_CTRL_OPTIONS doesnt_exist
  2247. #define SSL_CTRL_SESS_NUMBER doesnt_exist
  2248. #define SSL_CTRL_SET_CHANNEL_ID doesnt_exist
  2249. #define SSL_CTRL_SET_CURVES doesnt_exist
  2250. #define SSL_CTRL_SET_MAX_CERT_LIST doesnt_exist
  2251. #define SSL_CTRL_SET_MAX_SEND_FRAGMENT doesnt_exist
  2252. #define SSL_CTRL_SET_MSG_CALLBACK doesnt_exist
  2253. #define SSL_CTRL_SET_MSG_CALLBACK_ARG doesnt_exist
  2254. #define SSL_CTRL_SET_MTU doesnt_exist
  2255. #define SSL_CTRL_SET_READ_AHEAD doesnt_exist
  2256. #define SSL_CTRL_SET_SESS_CACHE_MODE doesnt_exist
  2257. #define SSL_CTRL_SET_SESS_CACHE_SIZE doesnt_exist
  2258. #define SSL_CTRL_SET_TLSEXT_HOSTNAME doesnt_exist
  2259. #define SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG doesnt_exist
  2260. #define SSL_CTRL_SET_TLSEXT_SERVERNAME_CB doesnt_exist
  2261. #define SSL_CTRL_SET_TLSEXT_TICKET_KEYS doesnt_exist
  2262. #define SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB doesnt_exist
  2263. #define SSL_CTRL_SET_TMP_DH doesnt_exist
  2264. #define SSL_CTRL_SET_TMP_DH_CB doesnt_exist
  2265. #define SSL_CTRL_SET_TMP_ECDH doesnt_exist
  2266. #define SSL_CTRL_SET_TMP_ECDH_CB doesnt_exist
  2267. #define SSL_CTRL_SET_TMP_RSA doesnt_exist
  2268. #define SSL_CTRL_SET_TMP_RSA_CB doesnt_exist
  2269. #define DTLSv1_get_timeout DTLSv1_get_timeout
  2270. #define DTLSv1_handle_timeout DTLSv1_handle_timeout
  2271. #define SSL_CTX_add0_chain_cert SSL_CTX_add0_chain_cert
  2272. #define SSL_CTX_add1_chain_cert SSL_CTX_add1_chain_cert
  2273. #define SSL_CTX_add_extra_chain_cert SSL_CTX_add_extra_chain_cert
  2274. #define SSL_CTX_clear_extra_chain_certs SSL_CTX_clear_extra_chain_certs
  2275. #define SSL_CTX_clear_chain_certs SSL_CTX_clear_chain_certs
  2276. #define SSL_CTX_clear_mode SSL_CTX_clear_mode
  2277. #define SSL_CTX_clear_options SSL_CTX_clear_options
  2278. #define SSL_CTX_enable_tls_channel_id SSL_CTX_enable_tls_channel_id
  2279. #define SSL_CTX_get0_chain_certs SSL_CTX_get0_chain_certs
  2280. #define SSL_CTX_get_extra_chain_certs SSL_CTX_get_extra_chain_certs
  2281. #define SSL_CTX_get_max_cert_list SSL_CTX_get_max_cert_list
  2282. #define SSL_CTX_get_mode SSL_CTX_get_mode
  2283. #define SSL_CTX_get_options SSL_CTX_get_options
  2284. #define SSL_CTX_get_read_ahead SSL_CTX_get_read_ahead
  2285. #define SSL_CTX_get_session_cache_mode SSL_CTX_get_session_cache_mode
  2286. #define SSL_CTX_get_tlsext_ticket_keys SSL_CTX_get_tlsext_ticket_keys
  2287. #define SSL_CTX_need_tmp_RSA SSL_CTX_need_tmp_RSA
  2288. #define SSL_CTX_sess_get_cache_size SSL_CTX_sess_get_cache_size
  2289. #define SSL_CTX_sess_number SSL_CTX_sess_number
  2290. #define SSL_CTX_sess_set_cache_size SSL_CTX_sess_set_cache_size
  2291. #define SSL_CTX_set0_chain SSL_CTX_set0_chain
  2292. #define SSL_CTX_set1_chain SSL_CTX_set1_chain
  2293. #define SSL_CTX_set1_curves SSL_CTX_set1_curves
  2294. #define SSL_CTX_set1_tls_channel_id SSL_CTX_set1_tls_channel_id
  2295. #define SSL_CTX_set_max_cert_list SSL_CTX_set_max_cert_list
  2296. #define SSL_CTX_set_max_send_fragment SSL_CTX_set_max_send_fragment
  2297. #define SSL_CTX_set_mode SSL_CTX_set_mode
  2298. #define SSL_CTX_set_msg_callback_arg SSL_CTX_set_msg_callback_arg
  2299. #define SSL_CTX_set_options SSL_CTX_set_options
  2300. #define SSL_CTX_set_read_ahead SSL_CTX_set_read_ahead
  2301. #define SSL_CTX_set_session_cache_mode SSL_CTX_set_session_cache_mode
  2302. #define SSL_CTX_set_tlsext_servername_arg SSL_CTX_set_tlsext_servername_arg
  2303. #define SSL_CTX_set_tlsext_servername_callback \
  2304. SSL_CTX_set_tlsext_servername_callback
  2305. #define SSL_CTX_set_tlsext_ticket_key_cb SSL_CTX_set_tlsext_ticket_key_cb
  2306. #define SSL_CTX_set_tlsext_ticket_keys SSL_CTX_set_tlsext_ticket_keys
  2307. #define SSL_CTX_set_tmp_dh SSL_CTX_set_tmp_dh
  2308. #define SSL_CTX_set_tmp_ecdh SSL_CTX_set_tmp_ecdh
  2309. #define SSL_CTX_set_tmp_rsa SSL_CTX_set_tmp_rsa
  2310. #define SSL_add0_chain_cert SSL_add0_chain_cert
  2311. #define SSL_add1_chain_cert SSL_add1_chain_cert
  2312. #define SSL_clear_chain_certs SSL_clear_chain_certs
  2313. #define SSL_clear_mode SSL_clear_mode
  2314. #define SSL_clear_options SSL_clear_options
  2315. #define SSL_enable_tls_channel_id SSL_enable_tls_channel_id
  2316. #define SSL_get0_certificate_types SSL_get0_certificate_types
  2317. #define SSL_get0_chain_certs SSL_get0_chain_certs
  2318. #define SSL_get_max_cert_list SSL_get_max_cert_list
  2319. #define SSL_get_mode SSL_get_mode
  2320. #define SSL_get_options SSL_get_options
  2321. #define SSL_get_secure_renegotiation_support \
  2322. SSL_get_secure_renegotiation_support
  2323. #define SSL_get_tls_channel_id SSL_get_tls_channel_id
  2324. #define SSL_need_tmp_RSA SSL_need_tmp_RSA
  2325. #define SSL_num_renegotiations SSL_num_renegotiations
  2326. #define SSL_session_reused SSL_session_reused
  2327. #define SSL_set0_chain SSL_set0_chain
  2328. #define SSL_set1_chain SSL_set1_chain
  2329. #define SSL_set1_curves SSL_set1_curves
  2330. #define SSL_set1_tls_channel_id SSL_set1_tls_channel_id
  2331. #define SSL_set_max_cert_list SSL_set_max_cert_list
  2332. #define SSL_set_max_send_fragment SSL_set_max_send_fragment
  2333. #define SSL_set_mode SSL_set_mode
  2334. #define SSL_set_msg_callback_arg SSL_set_msg_callback_arg
  2335. #define SSL_set_mtu SSL_set_mtu
  2336. #define SSL_set_options SSL_set_options
  2337. #define SSL_set_tlsext_host_name SSL_set_tlsext_host_name
  2338. #define SSL_set_tmp_dh SSL_set_tmp_dh
  2339. #define SSL_set_tmp_ecdh SSL_set_tmp_ecdh
  2340. #define SSL_set_tmp_rsa SSL_set_tmp_rsa
  2341. #define SSL_total_renegotiations SSL_total_renegotiations
  2342. #if defined(__cplusplus)
  2343. } /* extern C */
  2344. #endif
  2345. /* Library consumers assume these headers are included by ssl.h, but they depend
  2346. * on ssl.h, so include them after all declarations.
  2347. *
  2348. * TODO(davidben): The separation between ssl.h and these version-specific
  2349. * headers introduces circular dependencies and is inconsistent. The function
  2350. * declarations should move to ssl.h. Many of the constants can probably be
  2351. * pruned or unexported. */
  2352. #include <openssl/ssl3.h>
  2353. #include <openssl/tls1.h> /* This is mostly sslv3 with a few tweaks */
  2354. #include <openssl/srtp.h> /* Support for the use_srtp extension */
  2355. /* BEGIN ERROR CODES */
  2356. /* The following lines are auto generated by the script make_errors.go. Any
  2357. * changes made after this point may be overwritten when the script is next run.
  2358. */
  2359. #define SSL_R_APP_DATA_IN_HANDSHAKE 100
  2360. #define SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT 101
  2361. #define SSL_R_BAD_ALERT 102
  2362. #define SSL_R_BAD_CHANGE_CIPHER_SPEC 103
  2363. #define SSL_R_BAD_DATA_RETURNED_BY_CALLBACK 104
  2364. #define SSL_R_BAD_DH_P_LENGTH 105
  2365. #define SSL_R_BAD_DIGEST_LENGTH 106
  2366. #define SSL_R_BAD_ECC_CERT 107
  2367. #define SSL_R_BAD_ECPOINT 108
  2368. #define SSL_R_BAD_HANDSHAKE_LENGTH 109
  2369. #define SSL_R_BAD_HANDSHAKE_RECORD 110
  2370. #define SSL_R_BAD_HELLO_REQUEST 111
  2371. #define SSL_R_BAD_LENGTH 112
  2372. #define SSL_R_BAD_PACKET_LENGTH 113
  2373. #define SSL_R_BAD_RSA_ENCRYPT 114
  2374. #define SSL_R_BAD_SIGNATURE 115
  2375. #define SSL_R_BAD_SRTP_MKI_VALUE 116
  2376. #define SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST 117
  2377. #define SSL_R_BAD_SSL_FILETYPE 118
  2378. #define SSL_R_BAD_WRITE_RETRY 119
  2379. #define SSL_R_BIO_NOT_SET 120
  2380. #define SSL_R_BN_LIB 121
  2381. #define SSL_R_CANNOT_SERIALIZE_PUBLIC_KEY 122
  2382. #define SSL_R_CA_DN_LENGTH_MISMATCH 123
  2383. #define SSL_R_CA_DN_TOO_LONG 124
  2384. #define SSL_R_CCS_RECEIVED_EARLY 125
  2385. #define SSL_R_CERTIFICATE_VERIFY_FAILED 126
  2386. #define SSL_R_CERT_CB_ERROR 127
  2387. #define SSL_R_CERT_LENGTH_MISMATCH 128
  2388. #define SSL_R_CHANNEL_ID_NOT_P256 129
  2389. #define SSL_R_CHANNEL_ID_SIGNATURE_INVALID 130
  2390. #define SSL_R_CIPHER_CODE_WRONG_LENGTH 131
  2391. #define SSL_R_CIPHER_OR_HASH_UNAVAILABLE 132
  2392. #define SSL_R_CLIENTHELLO_PARSE_FAILED 133
  2393. #define SSL_R_CLIENTHELLO_TLSEXT 134
  2394. #define SSL_R_CONNECTION_REJECTED 135
  2395. #define SSL_R_CONNECTION_TYPE_NOT_SET 136
  2396. #define SSL_R_COOKIE_MISMATCH 137
  2397. #define SSL_R_D2I_ECDSA_SIG 138
  2398. #define SSL_R_DATA_BETWEEN_CCS_AND_FINISHED 139
  2399. #define SSL_R_DATA_LENGTH_TOO_LONG 140
  2400. #define SSL_R_DECODE_ERROR 141
  2401. #define SSL_R_DECRYPTION_FAILED 142
  2402. #define SSL_R_DECRYPTION_FAILED_OR_BAD_RECORD_MAC 143
  2403. #define SSL_R_DH_PUBLIC_VALUE_LENGTH_IS_WRONG 144
  2404. #define SSL_R_DIGEST_CHECK_FAILED 145
  2405. #define SSL_R_DTLS_MESSAGE_TOO_BIG 146
  2406. #define SSL_R_ECC_CERT_NOT_FOR_SIGNING 147
  2407. #define SSL_R_EMPTY_SRTP_PROTECTION_PROFILE_LIST 148
  2408. #define SSL_R_ENCRYPTED_LENGTH_TOO_LONG 149
  2409. #define SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST 150
  2410. #define SSL_R_EVP_DIGESTSIGNFINAL_FAILED 151
  2411. #define SSL_R_EVP_DIGESTSIGNINIT_FAILED 152
  2412. #define SSL_R_EXCESSIVE_MESSAGE_SIZE 153
  2413. #define SSL_R_EXTRA_DATA_IN_MESSAGE 154
  2414. #define SSL_R_GOT_A_FIN_BEFORE_A_CCS 155
  2415. #define SSL_R_GOT_CHANNEL_ID_BEFORE_A_CCS 156
  2416. #define SSL_R_GOT_NEXT_PROTO_BEFORE_A_CCS 157
  2417. #define SSL_R_GOT_NEXT_PROTO_WITHOUT_EXTENSION 158
  2418. #define SSL_R_HANDSHAKE_FAILURE_ON_CLIENT_HELLO 159
  2419. #define SSL_R_HANDSHAKE_RECORD_BEFORE_CCS 160
  2420. #define SSL_R_HTTPS_PROXY_REQUEST 161
  2421. #define SSL_R_HTTP_REQUEST 162
  2422. #define SSL_R_INAPPROPRIATE_FALLBACK 163
  2423. #define SSL_R_INVALID_COMMAND 164
  2424. #define SSL_R_INVALID_MESSAGE 165
  2425. #define SSL_R_INVALID_SSL_SESSION 166
  2426. #define SSL_R_INVALID_TICKET_KEYS_LENGTH 167
  2427. #define SSL_R_LENGTH_MISMATCH 168
  2428. #define SSL_R_LIBRARY_HAS_NO_CIPHERS 169
  2429. #define SSL_R_MISSING_DH_KEY 170
  2430. #define SSL_R_MISSING_ECDSA_SIGNING_CERT 171
  2431. #define SSL_R_MISSING_RSA_CERTIFICATE 172
  2432. #define SSL_R_MISSING_RSA_ENCRYPTING_CERT 173
  2433. #define SSL_R_MISSING_RSA_SIGNING_CERT 174
  2434. #define SSL_R_MISSING_TMP_DH_KEY 175
  2435. #define SSL_R_MISSING_TMP_ECDH_KEY 176
  2436. #define SSL_R_MIXED_SPECIAL_OPERATOR_WITH_GROUPS 177
  2437. #define SSL_R_MTU_TOO_SMALL 178
  2438. #define SSL_R_NESTED_GROUP 179
  2439. #define SSL_R_NO_CERTIFICATES_RETURNED 180
  2440. #define SSL_R_NO_CERTIFICATE_ASSIGNED 181
  2441. #define SSL_R_NO_CERTIFICATE_SET 182
  2442. #define SSL_R_NO_CIPHERS_AVAILABLE 183
  2443. #define SSL_R_NO_CIPHERS_PASSED 184
  2444. #define SSL_R_NO_CIPHERS_SPECIFIED 185
  2445. #define SSL_R_NO_CIPHER_MATCH 186
  2446. #define SSL_R_NO_COMPRESSION_SPECIFIED 187
  2447. #define SSL_R_NO_METHOD_SPECIFIED 188
  2448. #define SSL_R_NO_P256_SUPPORT 189
  2449. #define SSL_R_NO_PRIVATE_KEY_ASSIGNED 190
  2450. #define SSL_R_NO_RENEGOTIATION 191
  2451. #define SSL_R_NO_REQUIRED_DIGEST 192
  2452. #define SSL_R_NO_SHARED_CIPHER 193
  2453. #define SSL_R_NO_SHARED_SIGATURE_ALGORITHMS 194
  2454. #define SSL_R_NO_SRTP_PROFILES 195
  2455. #define SSL_R_NULL_SSL_CTX 196
  2456. #define SSL_R_NULL_SSL_METHOD_PASSED 197
  2457. #define SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED 198
  2458. #define SSL_R_PACKET_LENGTH_TOO_LONG 199
  2459. #define SSL_R_PARSE_TLSEXT 200
  2460. #define SSL_R_PATH_TOO_LONG 201
  2461. #define SSL_R_PEER_DID_NOT_RETURN_A_CERTIFICATE 202
  2462. #define SSL_R_PEER_ERROR_UNSUPPORTED_CERTIFICATE_TYPE 203
  2463. #define SSL_R_PROTOCOL_IS_SHUTDOWN 204
  2464. #define SSL_R_PSK_IDENTITY_NOT_FOUND 205
  2465. #define SSL_R_PSK_NO_CLIENT_CB 206
  2466. #define SSL_R_PSK_NO_SERVER_CB 207
  2467. #define SSL_R_READ_BIO_NOT_SET 208
  2468. #define SSL_R_READ_TIMEOUT_EXPIRED 209
  2469. #define SSL_R_RECORD_LENGTH_MISMATCH 210
  2470. #define SSL_R_RECORD_TOO_LARGE 211
  2471. #define SSL_R_RENEGOTIATE_EXT_TOO_LONG 212
  2472. #define SSL_R_RENEGOTIATION_ENCODING_ERR 213
  2473. #define SSL_R_RENEGOTIATION_MISMATCH 214
  2474. #define SSL_R_REQUIRED_CIPHER_MISSING 215
  2475. #define SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING 216
  2476. #define SSL_R_SERVERHELLO_TLSEXT 217
  2477. #define SSL_R_SESSION_ID_CONTEXT_UNINITIALIZED 218
  2478. #define SSL_R_SESSION_MAY_NOT_BE_CREATED 219
  2479. #define SSL_R_SIGNATURE_ALGORITHMS_ERROR 220
  2480. #define SSL_R_SRTP_COULD_NOT_ALLOCATE_PROFILES 221
  2481. #define SSL_R_SRTP_PROTECTION_PROFILE_LIST_TOO_LONG 222
  2482. #define SSL_R_SRTP_UNKNOWN_PROTECTION_PROFILE 223
  2483. #define SSL_R_SSL3_EXT_INVALID_SERVERNAME 224
  2484. #define SSL_R_SSL3_EXT_INVALID_SERVERNAME_TYPE 225
  2485. #define SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION 226
  2486. #define SSL_R_SSL_HANDSHAKE_FAILURE 227
  2487. #define SSL_R_SSL_SESSION_ID_CALLBACK_FAILED 228
  2488. #define SSL_R_SSL_SESSION_ID_CONFLICT 229
  2489. #define SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG 230
  2490. #define SSL_R_SSL_SESSION_ID_HAS_BAD_LENGTH 231
  2491. #define SSL_R_TLS_CLIENT_CERT_REQ_WITH_ANON_CIPHER 232
  2492. #define SSL_R_TLS_ILLEGAL_EXPORTER_LABEL 233
  2493. #define SSL_R_TLS_INVALID_ECPOINTFORMAT_LIST 234
  2494. #define SSL_R_TLS_PEER_DID_NOT_RESPOND_WITH_CERTIFICATE_LIST 235
  2495. #define SSL_R_TLS_RSA_ENCRYPTED_VALUE_LENGTH_IS_WRONG 236
  2496. #define SSL_R_TOO_MANY_EMPTY_FRAGMENTS 237
  2497. #define SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS 238
  2498. #define SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS 239
  2499. #define SSL_R_UNEXPECTED_GROUP_CLOSE 240
  2500. #define SSL_R_UNEXPECTED_MESSAGE 241
  2501. #define SSL_R_UNEXPECTED_OPERATOR_IN_GROUP 242
  2502. #define SSL_R_UNEXPECTED_RECORD 243
  2503. #define SSL_R_UNINITIALIZED 244
  2504. #define SSL_R_UNKNOWN_ALERT_TYPE 245
  2505. #define SSL_R_UNKNOWN_CERTIFICATE_TYPE 246
  2506. #define SSL_R_UNKNOWN_CIPHER_RETURNED 247
  2507. #define SSL_R_UNKNOWN_CIPHER_TYPE 248
  2508. #define SSL_R_UNKNOWN_DIGEST 249
  2509. #define SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE 250
  2510. #define SSL_R_UNKNOWN_PROTOCOL 251
  2511. #define SSL_R_UNKNOWN_SSL_VERSION 252
  2512. #define SSL_R_UNKNOWN_STATE 253
  2513. #define SSL_R_UNPROCESSED_HANDSHAKE_DATA 254
  2514. #define SSL_R_UNSAFE_LEGACY_RENEGOTIATION_DISABLED 255
  2515. #define SSL_R_UNSUPPORTED_CIPHER 256
  2516. #define SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM 257
  2517. #define SSL_R_UNSUPPORTED_ELLIPTIC_CURVE 258
  2518. #define SSL_R_UNSUPPORTED_PROTOCOL 259
  2519. #define SSL_R_UNSUPPORTED_SSL_VERSION 260
  2520. #define SSL_R_USE_SRTP_NOT_NEGOTIATED 261
  2521. #define SSL_R_WRONG_CERTIFICATE_TYPE 262
  2522. #define SSL_R_WRONG_CIPHER_RETURNED 263
  2523. #define SSL_R_WRONG_CURVE 264
  2524. #define SSL_R_WRONG_MESSAGE_TYPE 265
  2525. #define SSL_R_WRONG_SIGNATURE_TYPE 266
  2526. #define SSL_R_WRONG_SSL_VERSION 267
  2527. #define SSL_R_WRONG_VERSION_NUMBER 268
  2528. #define SSL_R_X509_LIB 269
  2529. #define SSL_R_X509_VERIFICATION_SETUP_PROBLEMS 270
  2530. #define SSL_R_FRAGMENT_MISMATCH 271
  2531. #define SSL_R_BUFFER_TOO_SMALL 272
  2532. #define SSL_R_OLD_SESSION_VERSION_NOT_RETURNED 273
  2533. #define SSL_R_OUTPUT_ALIASES_INPUT 274
  2534. #define SSL_R_RESUMED_EMS_SESSION_WITHOUT_EMS_EXTENSION 275
  2535. #define SSL_R_EMS_STATE_INCONSISTENT 276
  2536. #define SSL_R_RESUMED_NON_EMS_SESSION_WITH_EMS_EXTENSION 277
  2537. #define SSL_R_TOO_MANY_WARNING_ALERTS 278
  2538. #define SSL_R_UNEXPECTED_EXTENSION 279
  2539. #define SSL_R_SIGNATURE_ALGORITHMS_EXTENSION_SENT_BY_SERVER 280
  2540. #define SSL_R_ERROR_ADDING_EXTENSION 281
  2541. #define SSL_R_ERROR_PARSING_EXTENSION 282
  2542. #define SSL_R_MISSING_EXTENSION 283
  2543. #define SSL_R_CUSTOM_EXTENSION_CONTENTS_TOO_LARGE 284
  2544. #define SSL_R_CUSTOM_EXTENSION_ERROR 285
  2545. #define SSL_R_SSLV3_ALERT_CLOSE_NOTIFY 1000
  2546. #define SSL_R_SSLV3_ALERT_UNEXPECTED_MESSAGE 1010
  2547. #define SSL_R_SSLV3_ALERT_BAD_RECORD_MAC 1020
  2548. #define SSL_R_TLSV1_ALERT_DECRYPTION_FAILED 1021
  2549. #define SSL_R_TLSV1_ALERT_RECORD_OVERFLOW 1022
  2550. #define SSL_R_SSLV3_ALERT_DECOMPRESSION_FAILURE 1030
  2551. #define SSL_R_SSLV3_ALERT_HANDSHAKE_FAILURE 1040
  2552. #define SSL_R_SSLV3_ALERT_NO_CERTIFICATE 1041
  2553. #define SSL_R_SSLV3_ALERT_BAD_CERTIFICATE 1042
  2554. #define SSL_R_SSLV3_ALERT_UNSUPPORTED_CERTIFICATE 1043
  2555. #define SSL_R_SSLV3_ALERT_CERTIFICATE_REVOKED 1044
  2556. #define SSL_R_SSLV3_ALERT_CERTIFICATE_EXPIRED 1045
  2557. #define SSL_R_SSLV3_ALERT_CERTIFICATE_UNKNOWN 1046
  2558. #define SSL_R_SSLV3_ALERT_ILLEGAL_PARAMETER 1047
  2559. #define SSL_R_TLSV1_ALERT_UNKNOWN_CA 1048
  2560. #define SSL_R_TLSV1_ALERT_ACCESS_DENIED 1049
  2561. #define SSL_R_TLSV1_ALERT_DECODE_ERROR 1050
  2562. #define SSL_R_TLSV1_ALERT_DECRYPT_ERROR 1051
  2563. #define SSL_R_TLSV1_ALERT_EXPORT_RESTRICTION 1060
  2564. #define SSL_R_TLSV1_ALERT_PROTOCOL_VERSION 1070
  2565. #define SSL_R_TLSV1_ALERT_INSUFFICIENT_SECURITY 1071
  2566. #define SSL_R_TLSV1_ALERT_INTERNAL_ERROR 1080
  2567. #define SSL_R_TLSV1_ALERT_INAPPROPRIATE_FALLBACK 1086
  2568. #define SSL_R_TLSV1_ALERT_USER_CANCELLED 1090
  2569. #define SSL_R_TLSV1_ALERT_NO_RENEGOTIATION 1100
  2570. #define SSL_R_TLSV1_UNSUPPORTED_EXTENSION 1110
  2571. #define SSL_R_TLSV1_CERTIFICATE_UNOBTAINABLE 1111
  2572. #define SSL_R_TLSV1_UNRECOGNIZED_NAME 1112
  2573. #define SSL_R_TLSV1_BAD_CERTIFICATE_STATUS_RESPONSE 1113
  2574. #define SSL_R_TLSV1_BAD_CERTIFICATE_HASH_VALUE 1114
  2575. #endif /* OPENSSL_HEADER_SSL_H */