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/usr/include/node/openssl/archs/linux32-s390x/asm/include/openssl/ssl.h


$ cat -n /usr/include/node/openssl/archs/linux32-s390x/asm/include/openssl/ssl.h

     1	/*
     2	 * WARNING: do not edit!
     3	 * Generated by Makefile from include/openssl/ssl.h.in
     4	 *
     5	 * Copyright 1995-2025 The OpenSSL Project Authors. All Rights Reserved.
     6	 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
     7	 * Copyright 2005 Nokia. All rights reserved.
     8	 *
     9	 * Licensed under the Apache License 2.0 (the "License").  You may not use
    10	 * this file except in compliance with the License.  You can obtain a copy
    11	 * in the file LICENSE in the source distribution or at
    12	 * https://www.openssl.org/source/license.html
    13	 */
    14	
    15	
    16	
    17	#ifndef OPENSSL_SSL_H
    18	# define OPENSSL_SSL_H
    19	# pragma once
    20	
    21	# include <openssl/macros.h>
    22	# ifndef OPENSSL_NO_DEPRECATED_3_0
    23	#  define HEADER_SSL_H
    24	# endif
    25	
    26	# include <openssl/e_os2.h>
    27	# include <openssl/e_ostime.h>
    28	# include <openssl/opensslconf.h>
    29	# include <openssl/comp.h>
    30	# include <openssl/bio.h>
    31	# ifndef OPENSSL_NO_DEPRECATED_1_1_0
    32	#  include <openssl/x509.h>
    33	#  include <openssl/crypto.h>
    34	#  include <openssl/buffer.h>
    35	# endif
    36	# include <openssl/lhash.h>
    37	# include <openssl/pem.h>
    38	# include <openssl/hmac.h>
    39	# include <openssl/async.h>
    40	
    41	# include <openssl/safestack.h>
    42	# include <openssl/symhacks.h>
    43	# include <openssl/ct.h>
    44	# include <openssl/sslerr.h>
    45	# include <openssl/prov_ssl.h>
    46	# ifndef OPENSSL_NO_STDIO
    47	#  include <stdio.h>
    48	# endif
    49	
    50	#ifdef  __cplusplus
    51	extern "C" {
    52	#endif
    53	
    54	/* OpenSSL version number for ASN.1 encoding of the session information */
    55	/*-
    56	 * Version 0 - initial version
    57	 * Version 1 - added the optional peer certificate
    58	 */
    59	# define SSL_SESSION_ASN1_VERSION 0x0001
    60	
    61	# define SSL_MAX_SSL_SESSION_ID_LENGTH           32
    62	# define SSL_MAX_SID_CTX_LENGTH                  32
    63	
    64	# define SSL_MIN_RSA_MODULUS_LENGTH_IN_BYTES     (512/8)
    65	# define SSL_MAX_KEY_ARG_LENGTH                  8
    66	/* SSL_MAX_MASTER_KEY_LENGTH is defined in prov_ssl.h */
    67	
    68	/* The maximum number of encrypt/decrypt pipelines we can support */
    69	# define SSL_MAX_PIPELINES  32
    70	
    71	/* text strings for the ciphers */
    72	
    73	/* These are used to specify which ciphers to use and not to use */
    74	
    75	# define SSL_TXT_LOW             "LOW"
    76	# define SSL_TXT_MEDIUM          "MEDIUM"
    77	# define SSL_TXT_HIGH            "HIGH"
    78	# define SSL_TXT_FIPS            "FIPS"
    79	
    80	# define SSL_TXT_aNULL           "aNULL"
    81	# define SSL_TXT_eNULL           "eNULL"
    82	# define SSL_TXT_NULL            "NULL"
    83	
    84	# define SSL_TXT_kRSA            "kRSA"
    85	# define SSL_TXT_kDHr            "kDHr"/* this cipher class has been removed */
    86	# define SSL_TXT_kDHd            "kDHd"/* this cipher class has been removed */
    87	# define SSL_TXT_kDH             "kDH"/* this cipher class has been removed */
    88	# define SSL_TXT_kEDH            "kEDH"/* alias for kDHE */
    89	# define SSL_TXT_kDHE            "kDHE"
    90	# define SSL_TXT_kECDHr          "kECDHr"/* this cipher class has been removed */
    91	# define SSL_TXT_kECDHe          "kECDHe"/* this cipher class has been removed */
    92	# define SSL_TXT_kECDH           "kECDH"/* this cipher class has been removed */
    93	# define SSL_TXT_kEECDH          "kEECDH"/* alias for kECDHE */
    94	# define SSL_TXT_kECDHE          "kECDHE"
    95	# define SSL_TXT_kPSK            "kPSK"
    96	# define SSL_TXT_kRSAPSK         "kRSAPSK"
    97	# define SSL_TXT_kECDHEPSK       "kECDHEPSK"
    98	# define SSL_TXT_kDHEPSK         "kDHEPSK"
    99	# define SSL_TXT_kGOST           "kGOST"
   100	# define SSL_TXT_kGOST18         "kGOST18"
   101	# define SSL_TXT_kSRP            "kSRP"
   102	
   103	# define SSL_TXT_aRSA            "aRSA"
   104	# define SSL_TXT_aDSS            "aDSS"
   105	# define SSL_TXT_aDH             "aDH"/* this cipher class has been removed */
   106	# define SSL_TXT_aECDH           "aECDH"/* this cipher class has been removed */
   107	# define SSL_TXT_aECDSA          "aECDSA"
   108	# define SSL_TXT_aPSK            "aPSK"
   109	# define SSL_TXT_aGOST94         "aGOST94"
   110	# define SSL_TXT_aGOST01         "aGOST01"
   111	# define SSL_TXT_aGOST12         "aGOST12"
   112	# define SSL_TXT_aGOST           "aGOST"
   113	# define SSL_TXT_aSRP            "aSRP"
   114	
   115	# define SSL_TXT_DSS             "DSS"
   116	# define SSL_TXT_DH              "DH"
   117	# define SSL_TXT_DHE             "DHE"/* same as "kDHE:-ADH" */
   118	# define SSL_TXT_EDH             "EDH"/* alias for DHE */
   119	# define SSL_TXT_ADH             "ADH"
   120	# define SSL_TXT_RSA             "RSA"
   121	# define SSL_TXT_ECDH            "ECDH"
   122	# define SSL_TXT_EECDH           "EECDH"/* alias for ECDHE" */
   123	# define SSL_TXT_ECDHE           "ECDHE"/* same as "kECDHE:-AECDH" */
   124	# define SSL_TXT_AECDH           "AECDH"
   125	# define SSL_TXT_ECDSA           "ECDSA"
   126	# define SSL_TXT_PSK             "PSK"
   127	# define SSL_TXT_SRP             "SRP"
   128	
   129	# define SSL_TXT_DES             "DES"
   130	# define SSL_TXT_3DES            "3DES"
   131	# define SSL_TXT_RC4             "RC4"
   132	# define SSL_TXT_RC2             "RC2"
   133	# define SSL_TXT_IDEA            "IDEA"
   134	# define SSL_TXT_SEED            "SEED"
   135	# define SSL_TXT_AES128          "AES128"
   136	# define SSL_TXT_AES256          "AES256"
   137	# define SSL_TXT_AES             "AES"
   138	# define SSL_TXT_AES_GCM         "AESGCM"
   139	# define SSL_TXT_AES_CCM         "AESCCM"
   140	# define SSL_TXT_AES_CCM_8       "AESCCM8"
   141	# define SSL_TXT_CAMELLIA128     "CAMELLIA128"
   142	# define SSL_TXT_CAMELLIA256     "CAMELLIA256"
   143	# define SSL_TXT_CAMELLIA        "CAMELLIA"
   144	# define SSL_TXT_CHACHA20        "CHACHA20"
   145	# define SSL_TXT_GOST            "GOST89"
   146	# define SSL_TXT_ARIA            "ARIA"
   147	# define SSL_TXT_ARIA_GCM        "ARIAGCM"
   148	# define SSL_TXT_ARIA128         "ARIA128"
   149	# define SSL_TXT_ARIA256         "ARIA256"
   150	# define SSL_TXT_GOST2012_GOST8912_GOST8912 "GOST2012-GOST8912-GOST8912"
   151	# define SSL_TXT_CBC             "CBC"
   152	
   153	# define SSL_TXT_MD5             "MD5"
   154	# define SSL_TXT_SHA1            "SHA1"
   155	# define SSL_TXT_SHA             "SHA"/* same as "SHA1" */
   156	# define SSL_TXT_GOST94          "GOST94"
   157	# define SSL_TXT_GOST89MAC       "GOST89MAC"
   158	# define SSL_TXT_GOST12          "GOST12"
   159	# define SSL_TXT_GOST89MAC12     "GOST89MAC12"
   160	# define SSL_TXT_SHA256          "SHA256"
   161	# define SSL_TXT_SHA384          "SHA384"
   162	
   163	# define SSL_TXT_SSLV3           "SSLv3"
   164	# define SSL_TXT_TLSV1           "TLSv1"
   165	# define SSL_TXT_TLSV1_1         "TLSv1.1"
   166	# define SSL_TXT_TLSV1_2         "TLSv1.2"
   167	
   168	# define SSL_TXT_ALL             "ALL"
   169	
   170	/*-
   171	 * COMPLEMENTOF* definitions. These identifiers are used to (de-select)
   172	 * ciphers normally not being used.
   173	 * Example: "RC4" will activate all ciphers using RC4 including ciphers
   174	 * without authentication, which would normally disabled by DEFAULT (due
   175	 * the "!ADH" being part of default). Therefore "RC4:!COMPLEMENTOFDEFAULT"
   176	 * will make sure that it is also disabled in the specific selection.
   177	 * COMPLEMENTOF* identifiers are portable between version, as adjustments
   178	 * to the default cipher setup will also be included here.
   179	 *
   180	 * COMPLEMENTOFDEFAULT does not experience the same special treatment that
   181	 * DEFAULT gets, as only selection is being done and no sorting as needed
   182	 * for DEFAULT.
   183	 */
   184	# define SSL_TXT_CMPALL          "COMPLEMENTOFALL"
   185	# define SSL_TXT_CMPDEF          "COMPLEMENTOFDEFAULT"
   186	
   187	/*
   188	 * The following cipher list is used by default. It also is substituted when
   189	 * an application-defined cipher list string starts with 'DEFAULT'.
   190	 * This applies to ciphersuites for TLSv1.2 and below.
   191	 * DEPRECATED IN 3.0.0, in favor of OSSL_default_cipher_list()
   192	 * Update both macro and function simultaneously
   193	 */
   194	# ifndef OPENSSL_NO_DEPRECATED_3_0
   195	#  define SSL_DEFAULT_CIPHER_LIST "ALL:!COMPLEMENTOFDEFAULT:!eNULL"
   196	/*
   197	 * This is the default set of TLSv1.3 ciphersuites
   198	 * DEPRECATED IN 3.0.0, in favor of OSSL_default_ciphersuites()
   199	 * Update both macro and function simultaneously
   200	 */
   201	#  define TLS_DEFAULT_CIPHERSUITES "TLS_AES_256_GCM_SHA384:" \
   202	                                   "TLS_CHACHA20_POLY1305_SHA256:" \
   203	                                   "TLS_AES_128_GCM_SHA256"
   204	# endif
   205	/*
   206	 * As of OpenSSL 1.0.0, ssl_create_cipher_list() in ssl/ssl_ciph.c always
   207	 * starts with a reasonable order, and all we have to do for DEFAULT is
   208	 * throwing out anonymous and unencrypted ciphersuites! (The latter are not
   209	 * actually enabled by ALL, but "ALL:RSA" would enable some of them.)
   210	 */
   211	
   212	/* Used in SSL_set_shutdown()/SSL_get_shutdown(); */
   213	# define SSL_SENT_SHUTDOWN       1
   214	# define SSL_RECEIVED_SHUTDOWN   2
   215	
   216	#ifdef __cplusplus
   217	}
   218	#endif
   219	
   220	#ifdef  __cplusplus
   221	extern "C" {
   222	#endif
   223	
   224	# define SSL_FILETYPE_ASN1       X509_FILETYPE_ASN1
   225	# define SSL_FILETYPE_PEM        X509_FILETYPE_PEM
   226	
   227	/*
   228	 * This is needed to stop compilers complaining about the 'struct ssl_st *'
   229	 * function parameters used to prototype callbacks in SSL_CTX.
   230	 */
   231	typedef struct ssl_st *ssl_crock_st;
   232	typedef struct tls_session_ticket_ext_st TLS_SESSION_TICKET_EXT;
   233	typedef struct ssl_method_st SSL_METHOD;
   234	typedef struct ssl_cipher_st SSL_CIPHER;
   235	typedef struct ssl_session_st SSL_SESSION;
   236	typedef struct tls_sigalgs_st TLS_SIGALGS;
   237	typedef struct ssl_conf_ctx_st SSL_CONF_CTX;
   238	
   239	STACK_OF(SSL_CIPHER);
   240	
   241	/* SRTP protection profiles for use with the use_srtp extension (RFC 5764)*/
   242	typedef struct srtp_protection_profile_st {
   243	    const char *name;
   244	    unsigned long id;
   245	} SRTP_PROTECTION_PROFILE;
   246	SKM_DEFINE_STACK_OF_INTERNAL(SRTP_PROTECTION_PROFILE, SRTP_PROTECTION_PROFILE, SRTP_PROTECTION_PROFILE)
   247	#define sk_SRTP_PROTECTION_PROFILE_num(sk) OPENSSL_sk_num(ossl_check_const_SRTP_PROTECTION_PROFILE_sk_type(sk))
   248	#define sk_SRTP_PROTECTION_PROFILE_value(sk, idx) ((SRTP_PROTECTION_PROFILE *)OPENSSL_sk_value(ossl_check_const_SRTP_PROTECTION_PROFILE_sk_type(sk), (idx)))
   249	#define sk_SRTP_PROTECTION_PROFILE_new(cmp) ((STACK_OF(SRTP_PROTECTION_PROFILE) *)OPENSSL_sk_new(ossl_check_SRTP_PROTECTION_PROFILE_compfunc_type(cmp)))
   250	#define sk_SRTP_PROTECTION_PROFILE_new_null() ((STACK_OF(SRTP_PROTECTION_PROFILE) *)OPENSSL_sk_new_null())
   251	#define sk_SRTP_PROTECTION_PROFILE_new_reserve(cmp, n) ((STACK_OF(SRTP_PROTECTION_PROFILE) *)OPENSSL_sk_new_reserve(ossl_check_SRTP_PROTECTION_PROFILE_compfunc_type(cmp), (n)))
   252	#define sk_SRTP_PROTECTION_PROFILE_reserve(sk, n) OPENSSL_sk_reserve(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk), (n))
   253	#define sk_SRTP_PROTECTION_PROFILE_free(sk) OPENSSL_sk_free(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk))
   254	#define sk_SRTP_PROTECTION_PROFILE_zero(sk) OPENSSL_sk_zero(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk))
   255	#define sk_SRTP_PROTECTION_PROFILE_delete(sk, i) ((SRTP_PROTECTION_PROFILE *)OPENSSL_sk_delete(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk), (i)))
   256	#define sk_SRTP_PROTECTION_PROFILE_delete_ptr(sk, ptr) ((SRTP_PROTECTION_PROFILE *)OPENSSL_sk_delete_ptr(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk), ossl_check_SRTP_PROTECTION_PROFILE_type(ptr)))
   257	#define sk_SRTP_PROTECTION_PROFILE_push(sk, ptr) OPENSSL_sk_push(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk), ossl_check_SRTP_PROTECTION_PROFILE_type(ptr))
   258	#define sk_SRTP_PROTECTION_PROFILE_unshift(sk, ptr) OPENSSL_sk_unshift(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk), ossl_check_SRTP_PROTECTION_PROFILE_type(ptr))
   259	#define sk_SRTP_PROTECTION_PROFILE_pop(sk) ((SRTP_PROTECTION_PROFILE *)OPENSSL_sk_pop(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk)))
   260	#define sk_SRTP_PROTECTION_PROFILE_shift(sk) ((SRTP_PROTECTION_PROFILE *)OPENSSL_sk_shift(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk)))
   261	#define sk_SRTP_PROTECTION_PROFILE_pop_free(sk, freefunc) OPENSSL_sk_pop_free(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk),ossl_check_SRTP_PROTECTION_PROFILE_freefunc_type(freefunc))
   262	#define sk_SRTP_PROTECTION_PROFILE_insert(sk, ptr, idx) OPENSSL_sk_insert(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk), ossl_check_SRTP_PROTECTION_PROFILE_type(ptr), (idx))
   263	#define sk_SRTP_PROTECTION_PROFILE_set(sk, idx, ptr) ((SRTP_PROTECTION_PROFILE *)OPENSSL_sk_set(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk), (idx), ossl_check_SRTP_PROTECTION_PROFILE_type(ptr)))
   264	#define sk_SRTP_PROTECTION_PROFILE_find(sk, ptr) OPENSSL_sk_find(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk), ossl_check_SRTP_PROTECTION_PROFILE_type(ptr))
   265	#define sk_SRTP_PROTECTION_PROFILE_find_ex(sk, ptr) OPENSSL_sk_find_ex(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk), ossl_check_SRTP_PROTECTION_PROFILE_type(ptr))
   266	#define sk_SRTP_PROTECTION_PROFILE_find_all(sk, ptr, pnum) OPENSSL_sk_find_all(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk), ossl_check_SRTP_PROTECTION_PROFILE_type(ptr), pnum)
   267	#define sk_SRTP_PROTECTION_PROFILE_sort(sk) OPENSSL_sk_sort(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk))
   268	#define sk_SRTP_PROTECTION_PROFILE_is_sorted(sk) OPENSSL_sk_is_sorted(ossl_check_const_SRTP_PROTECTION_PROFILE_sk_type(sk))
   269	#define sk_SRTP_PROTECTION_PROFILE_dup(sk) ((STACK_OF(SRTP_PROTECTION_PROFILE) *)OPENSSL_sk_dup(ossl_check_const_SRTP_PROTECTION_PROFILE_sk_type(sk)))
   270	#define sk_SRTP_PROTECTION_PROFILE_deep_copy(sk, copyfunc, freefunc) ((STACK_OF(SRTP_PROTECTION_PROFILE) *)OPENSSL_sk_deep_copy(ossl_check_const_SRTP_PROTECTION_PROFILE_sk_type(sk), ossl_check_SRTP_PROTECTION_PROFILE_copyfunc_type(copyfunc), ossl_check_SRTP_PROTECTION_PROFILE_freefunc_type(freefunc)))
   271	#define sk_SRTP_PROTECTION_PROFILE_set_cmp_func(sk, cmp) ((sk_SRTP_PROTECTION_PROFILE_compfunc)OPENSSL_sk_set_cmp_func(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk), ossl_check_SRTP_PROTECTION_PROFILE_compfunc_type(cmp)))
   272	
   273	
   274	
   275	typedef int (*tls_session_ticket_ext_cb_fn)(SSL *s, const unsigned char *data,
   276	                                            int len, void *arg);
   277	typedef int (*tls_session_secret_cb_fn)(SSL *s, void *secret, int *secret_len,
   278	                                        STACK_OF(SSL_CIPHER) *peer_ciphers,
   279	                                        const SSL_CIPHER **cipher, void *arg);
   280	
   281	/* Extension context codes */
   282	/* This extension is only allowed in TLS */
   283	#define SSL_EXT_TLS_ONLY                        0x00001
   284	/* This extension is only allowed in DTLS */
   285	#define SSL_EXT_DTLS_ONLY                       0x00002
   286	/* Some extensions may be allowed in DTLS but we don't implement them for it */
   287	#define SSL_EXT_TLS_IMPLEMENTATION_ONLY         0x00004
   288	/* Most extensions are not defined for SSLv3 but EXT_TYPE_renegotiate is */
   289	#define SSL_EXT_SSL3_ALLOWED                    0x00008
   290	/* Extension is only defined for TLS1.2 and below */
   291	#define SSL_EXT_TLS1_2_AND_BELOW_ONLY           0x00010
   292	/* Extension is only defined for TLS1.3 and above */
   293	#define SSL_EXT_TLS1_3_ONLY                     0x00020
   294	/* Ignore this extension during parsing if we are resuming */
   295	#define SSL_EXT_IGNORE_ON_RESUMPTION            0x00040
   296	#define SSL_EXT_CLIENT_HELLO                    0x00080
   297	/* Really means TLS1.2 or below */
   298	#define SSL_EXT_TLS1_2_SERVER_HELLO             0x00100
   299	#define SSL_EXT_TLS1_3_SERVER_HELLO             0x00200
   300	#define SSL_EXT_TLS1_3_ENCRYPTED_EXTENSIONS     0x00400
   301	#define SSL_EXT_TLS1_3_HELLO_RETRY_REQUEST      0x00800
   302	#define SSL_EXT_TLS1_3_CERTIFICATE              0x01000
   303	#define SSL_EXT_TLS1_3_NEW_SESSION_TICKET       0x02000
   304	#define SSL_EXT_TLS1_3_CERTIFICATE_REQUEST      0x04000
   305	#define SSL_EXT_TLS1_3_CERTIFICATE_COMPRESSION  0x08000
   306	/* When sending a raw public key in a certificate message */
   307	#define SSL_EXT_TLS1_3_RAW_PUBLIC_KEY           0x10000
   308	
   309	/* Typedefs for handling custom extensions */
   310	
   311	typedef int (*custom_ext_add_cb)(SSL *s, unsigned int ext_type,
   312	                                 const unsigned char **out, size_t *outlen,
   313	                                 int *al, void *add_arg);
   314	
   315	typedef void (*custom_ext_free_cb)(SSL *s, unsigned int ext_type,
   316	                                   const unsigned char *out, void *add_arg);
   317	
   318	typedef int (*custom_ext_parse_cb)(SSL *s, unsigned int ext_type,
   319	                                   const unsigned char *in, size_t inlen,
   320	                                   int *al, void *parse_arg);
   321	
   322	
   323	typedef int (*SSL_custom_ext_add_cb_ex)(SSL *s, unsigned int ext_type,
   324	                                        unsigned int context,
   325	                                        const unsigned char **out,
   326	                                        size_t *outlen, X509 *x,
   327	                                        size_t chainidx,
   328	                                        int *al, void *add_arg);
   329	
   330	typedef void (*SSL_custom_ext_free_cb_ex)(SSL *s, unsigned int ext_type,
   331	                                          unsigned int context,
   332	                                          const unsigned char *out,
   333	                                          void *add_arg);
   334	
   335	typedef int (*SSL_custom_ext_parse_cb_ex)(SSL *s, unsigned int ext_type,
   336	                                          unsigned int context,
   337	                                          const unsigned char *in,
   338	                                          size_t inlen, X509 *x,
   339	                                          size_t chainidx,
   340	                                          int *al, void *parse_arg);
   341	
   342	/* Typedef for verification callback */
   343	typedef int (*SSL_verify_cb)(int preverify_ok, X509_STORE_CTX *x509_ctx);
   344	
   345	/* Typedef for SSL async callback */
   346	typedef int (*SSL_async_callback_fn)(SSL *s, void *arg);
   347	
   348	#define SSL_OP_BIT(n)  ((uint64_t)1 << (uint64_t)n)
   349	
   350	/*
   351	 * SSL/TLS connection options.
   352	 */
   353	    /* Disable Extended master secret */
   354	# define SSL_OP_NO_EXTENDED_MASTER_SECRET                SSL_OP_BIT(0)
   355	    /* Cleanse plaintext copies of data delivered to the application */
   356	# define SSL_OP_CLEANSE_PLAINTEXT                        SSL_OP_BIT(1)
   357	    /* Allow initial connection to servers that don't support RI */
   358	# define SSL_OP_LEGACY_SERVER_CONNECT                    SSL_OP_BIT(2)
   359	    /* Enable support for Kernel TLS */
   360	# define SSL_OP_ENABLE_KTLS                              SSL_OP_BIT(3)
   361	# define SSL_OP_TLSEXT_PADDING                           SSL_OP_BIT(4)
   362	# define SSL_OP_SAFARI_ECDHE_ECDSA_BUG                   SSL_OP_BIT(6)
   363	# define SSL_OP_IGNORE_UNEXPECTED_EOF                    SSL_OP_BIT(7)
   364	# define SSL_OP_ALLOW_CLIENT_RENEGOTIATION               SSL_OP_BIT(8)
   365	# define SSL_OP_DISABLE_TLSEXT_CA_NAMES                  SSL_OP_BIT(9)
   366	    /* In TLSv1.3 allow a non-(ec)dhe based kex_mode */
   367	# define SSL_OP_ALLOW_NO_DHE_KEX                         SSL_OP_BIT(10)
   368	    /*
   369	     * Disable SSL 3.0/TLS 1.0 CBC vulnerability workaround that was added
   370	     * in OpenSSL 0.9.6d.  Usually (depending on the application protocol)
   371	     * the workaround is not needed.  Unfortunately some broken SSL/TLS
   372	     * implementations cannot handle it at all, which is why we include it
   373	     * in SSL_OP_ALL. Added in 0.9.6e
   374	     */
   375	# define SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS              SSL_OP_BIT(11)
   376	    /* DTLS options */
   377	# define SSL_OP_NO_QUERY_MTU                             SSL_OP_BIT(12)
   378	    /* Turn on Cookie Exchange (on relevant for servers) */
   379	# define SSL_OP_COOKIE_EXCHANGE                          SSL_OP_BIT(13)
   380	    /* Don't use RFC4507 ticket extension */
   381	# define SSL_OP_NO_TICKET                                SSL_OP_BIT(14)
   382	# ifndef OPENSSL_NO_DTLS1_METHOD
   383	    /*
   384	     * Use Cisco's version identifier of DTLS_BAD_VER
   385	     * (only with deprecated DTLSv1_client_method())
   386	     */
   387	#  define SSL_OP_CISCO_ANYCONNECT                        SSL_OP_BIT(15)
   388	# endif
   389	    /* As server, disallow session resumption on renegotiation */
   390	# define SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION   SSL_OP_BIT(16)
   391	    /* Don't use compression even if supported */
   392	# define SSL_OP_NO_COMPRESSION                           SSL_OP_BIT(17)
   393	    /* Permit unsafe legacy renegotiation */
   394	# define SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION        SSL_OP_BIT(18)
   395	    /* Disable encrypt-then-mac */
   396	# define SSL_OP_NO_ENCRYPT_THEN_MAC                      SSL_OP_BIT(19)
   397	    /*
   398	     * Enable TLSv1.3 Compatibility mode. This is on by default. A future
   399	     * version of OpenSSL may have this disabled by default.
   400	     */
   401	# define SSL_OP_ENABLE_MIDDLEBOX_COMPAT                  SSL_OP_BIT(20)
   402	    /*
   403	     * Prioritize Chacha20Poly1305 when client does.
   404	     * Modifies SSL_OP_CIPHER_SERVER_PREFERENCE
   405	     */
   406	# define SSL_OP_PRIORITIZE_CHACHA                        SSL_OP_BIT(21)
   407	    /*
   408	     * Set on servers to choose the cipher according to server's preferences.
   409	     */
   410	# define SSL_OP_CIPHER_SERVER_PREFERENCE                 SSL_OP_BIT(22)
   411	    /*
   412	     * If set, a server will allow a client to issue an SSLv3.0 version
   413	     * number as latest version supported in the premaster secret, even when
   414	     * TLSv1.0 (version 3.1) was announced in the client hello. Normally
   415	     * this is forbidden to prevent version rollback attacks.
   416	     */
   417	# define SSL_OP_TLS_ROLLBACK_BUG                         SSL_OP_BIT(23)
   418	    /*
   419	     * Switches off automatic TLSv1.3 anti-replay protection for early data.
   420	     * This is a server-side option only (no effect on the client).
   421	     */
   422	# define SSL_OP_NO_ANTI_REPLAY                           SSL_OP_BIT(24)
   423	# define SSL_OP_NO_SSLv3                                 SSL_OP_BIT(25)
   424	# define SSL_OP_NO_TLSv1                                 SSL_OP_BIT(26)
   425	# define SSL_OP_NO_TLSv1_2                               SSL_OP_BIT(27)
   426	# define SSL_OP_NO_TLSv1_1                               SSL_OP_BIT(28)
   427	# define SSL_OP_NO_TLSv1_3                               SSL_OP_BIT(29)
   428	# define SSL_OP_NO_DTLSv1                                SSL_OP_BIT(26)
   429	# define SSL_OP_NO_DTLSv1_2                              SSL_OP_BIT(27)
   430	    /* Disallow all renegotiation */
   431	# define SSL_OP_NO_RENEGOTIATION                         SSL_OP_BIT(30)
   432	    /*
   433	     * Make server add server-hello extension from early version of
   434	     * cryptopro draft, when GOST ciphersuite is negotiated. Required for
   435	     * interoperability with CryptoPro CSP 3.x
   436	     */
   437	# define SSL_OP_CRYPTOPRO_TLSEXT_BUG                     SSL_OP_BIT(31)
   438	/*
   439	 * Disable RFC8879 certificate compression
   440	 * SSL_OP_NO_TX_CERTIFICATE_COMPRESSION: don't send compressed certificates,
   441	 *     and ignore the extension when received.
   442	 * SSL_OP_NO_RX_CERTIFICATE_COMPRESSION: don't send the extension, and
   443	 *     subsequently indicating that receiving is not supported
   444	 */
   445	# define SSL_OP_NO_TX_CERTIFICATE_COMPRESSION            SSL_OP_BIT(32)
   446	# define SSL_OP_NO_RX_CERTIFICATE_COMPRESSION            SSL_OP_BIT(33)
   447	    /* Enable KTLS TX zerocopy on Linux */
   448	# define SSL_OP_ENABLE_KTLS_TX_ZEROCOPY_SENDFILE         SSL_OP_BIT(34)
   449	
   450	#define SSL_OP_PREFER_NO_DHE_KEX                         SSL_OP_BIT(35)
   451	
   452	/*
   453	 * Option "collections."
   454	 */
   455	# define SSL_OP_NO_SSL_MASK \
   456	        ( SSL_OP_NO_SSLv3 | SSL_OP_NO_TLSv1 | SSL_OP_NO_TLSv1_1 \
   457	          | SSL_OP_NO_TLSv1_2 | SSL_OP_NO_TLSv1_3 )
   458	# define SSL_OP_NO_DTLS_MASK \
   459	        ( SSL_OP_NO_DTLSv1 | SSL_OP_NO_DTLSv1_2 )
   460	
   461	/* Various bug workarounds that should be rather harmless. */
   462	# define SSL_OP_ALL \
   463	        ( SSL_OP_CRYPTOPRO_TLSEXT_BUG | SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS \
   464	          | SSL_OP_TLSEXT_PADDING | SSL_OP_SAFARI_ECDHE_ECDSA_BUG )
   465	
   466	/*
   467	 * OBSOLETE OPTIONS retained for compatibility
   468	 */
   469	
   470	# define SSL_OP_MICROSOFT_SESS_ID_BUG                    0x0
   471	# define SSL_OP_NETSCAPE_CHALLENGE_BUG                   0x0
   472	# define SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG         0x0
   473	# define SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG              0x0
   474	# define SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER               0x0
   475	# define SSL_OP_MSIE_SSLV2_RSA_PADDING                   0x0
   476	# define SSL_OP_SSLEAY_080_CLIENT_DH_BUG                 0x0
   477	# define SSL_OP_TLS_D5_BUG                               0x0
   478	# define SSL_OP_TLS_BLOCK_PADDING_BUG                    0x0
   479	# define SSL_OP_SINGLE_ECDH_USE                          0x0
   480	# define SSL_OP_SINGLE_DH_USE                            0x0
   481	# define SSL_OP_EPHEMERAL_RSA                            0x0
   482	# define SSL_OP_NO_SSLv2                                 0x0
   483	# define SSL_OP_PKCS1_CHECK_1                            0x0
   484	# define SSL_OP_PKCS1_CHECK_2                            0x0
   485	# define SSL_OP_NETSCAPE_CA_DN_BUG                       0x0
   486	# define SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG          0x0
   487	
   488	/*
   489	 * Allow SSL_write(..., n) to return r with 0 < r < n (i.e. report success
   490	 * when just a single record has been written):
   491	 */
   492	# define SSL_MODE_ENABLE_PARTIAL_WRITE       0x00000001U
   493	/*
   494	 * Make it possible to retry SSL_write() with changed buffer location (buffer
   495	 * contents must stay the same!); this is not the default to avoid the
   496	 * misconception that non-blocking SSL_write() behaves like non-blocking
   497	 * write():
   498	 */
   499	# define SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER 0x00000002U
   500	/*
   501	 * Never bother the application with retries if the transport is blocking:
   502	 */
   503	# define SSL_MODE_AUTO_RETRY 0x00000004U
   504	/* Don't attempt to automatically build certificate chain */
   505	# define SSL_MODE_NO_AUTO_CHAIN 0x00000008U
   506	/*
   507	 * Save RAM by releasing read and write buffers when they're empty. (SSL3 and
   508	 * TLS only.) Released buffers are freed.
   509	 */
   510	# define SSL_MODE_RELEASE_BUFFERS 0x00000010U
   511	/*
   512	 * Send the current time in the Random fields of the ClientHello and
   513	 * ServerHello records for compatibility with hypothetical implementations
   514	 * that require it.
   515	 */
   516	# define SSL_MODE_SEND_CLIENTHELLO_TIME 0x00000020U
   517	# define SSL_MODE_SEND_SERVERHELLO_TIME 0x00000040U
   518	/*
   519	 * Send TLS_FALLBACK_SCSV in the ClientHello. To be set only by applications
   520	 * that reconnect with a downgraded protocol version; see
   521	 * draft-ietf-tls-downgrade-scsv-00 for details. DO NOT ENABLE THIS if your
   522	 * application attempts a normal handshake. Only use this in explicit
   523	 * fallback retries, following the guidance in
   524	 * draft-ietf-tls-downgrade-scsv-00.
   525	 */
   526	# define SSL_MODE_SEND_FALLBACK_SCSV 0x00000080U
   527	/*
   528	 * Support Asynchronous operation
   529	 */
   530	# define SSL_MODE_ASYNC 0x00000100U
   531	
   532	/*
   533	 * When using DTLS/SCTP, include the terminating zero in the label
   534	 * used for computing the endpoint-pair shared secret. Required for
   535	 * interoperability with implementations having this bug like these
   536	 * older version of OpenSSL:
   537	 * - OpenSSL 1.0.0 series
   538	 * - OpenSSL 1.0.1 series
   539	 * - OpenSSL 1.0.2 series
   540	 * - OpenSSL 1.1.0 series
   541	 * - OpenSSL 1.1.1 and 1.1.1a
   542	 */
   543	# define SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG 0x00000400U
   544	
   545	/* Cert related flags */
   546	/*
   547	 * Many implementations ignore some aspects of the TLS standards such as
   548	 * enforcing certificate chain algorithms. When this is set we enforce them.
   549	 */
   550	# define SSL_CERT_FLAG_TLS_STRICT                0x00000001U
   551	
   552	/* Suite B modes, takes same values as certificate verify flags */
   553	# define SSL_CERT_FLAG_SUITEB_128_LOS_ONLY       0x10000
   554	/* Suite B 192 bit only mode */
   555	# define SSL_CERT_FLAG_SUITEB_192_LOS            0x20000
   556	/* Suite B 128 bit mode allowing 192 bit algorithms */
   557	# define SSL_CERT_FLAG_SUITEB_128_LOS            0x30000
   558	
   559	/* Perform all sorts of protocol violations for testing purposes */
   560	# define SSL_CERT_FLAG_BROKEN_PROTOCOL           0x10000000
   561	
   562	/* Flags for building certificate chains */
   563	/* Treat any existing certificates as untrusted CAs */
   564	# define SSL_BUILD_CHAIN_FLAG_UNTRUSTED          0x1
   565	/* Don't include root CA in chain */
   566	# define SSL_BUILD_CHAIN_FLAG_NO_ROOT            0x2
   567	/* Just check certificates already there */
   568	# define SSL_BUILD_CHAIN_FLAG_CHECK              0x4
   569	/* Ignore verification errors */
   570	# define SSL_BUILD_CHAIN_FLAG_IGNORE_ERROR       0x8
   571	/* Clear verification errors from queue */
   572	# define SSL_BUILD_CHAIN_FLAG_CLEAR_ERROR        0x10
   573	
   574	/* Flags returned by SSL_check_chain */
   575	/* Certificate can be used with this session */
   576	# define CERT_PKEY_VALID         0x1
   577	/* Certificate can also be used for signing */
   578	# define CERT_PKEY_SIGN          0x2
   579	/* EE certificate signing algorithm OK */
   580	# define CERT_PKEY_EE_SIGNATURE  0x10
   581	/* CA signature algorithms OK */
   582	# define CERT_PKEY_CA_SIGNATURE  0x20
   583	/* EE certificate parameters OK */
   584	# define CERT_PKEY_EE_PARAM      0x40
   585	/* CA certificate parameters OK */
   586	# define CERT_PKEY_CA_PARAM      0x80
   587	/* Signing explicitly allowed as opposed to SHA1 fallback */
   588	# define CERT_PKEY_EXPLICIT_SIGN 0x100
   589	/* Client CA issuer names match (always set for server cert) */
   590	# define CERT_PKEY_ISSUER_NAME   0x200
   591	/* Cert type matches client types (always set for server cert) */
   592	# define CERT_PKEY_CERT_TYPE     0x400
   593	/* Cert chain suitable to Suite B */
   594	# define CERT_PKEY_SUITEB        0x800
   595	/* Cert pkey valid for raw public key use */
   596	# define CERT_PKEY_RPK           0x1000
   597	
   598	# define SSL_CONF_FLAG_CMDLINE           0x1
   599	# define SSL_CONF_FLAG_FILE              0x2
   600	# define SSL_CONF_FLAG_CLIENT            0x4
   601	# define SSL_CONF_FLAG_SERVER            0x8
   602	# define SSL_CONF_FLAG_SHOW_ERRORS       0x10
   603	# define SSL_CONF_FLAG_CERTIFICATE       0x20
   604	# define SSL_CONF_FLAG_REQUIRE_PRIVATE   0x40
   605	/* Configuration value types */
   606	# define SSL_CONF_TYPE_UNKNOWN           0x0
   607	# define SSL_CONF_TYPE_STRING            0x1
   608	# define SSL_CONF_TYPE_FILE              0x2
   609	# define SSL_CONF_TYPE_DIR               0x3
   610	# define SSL_CONF_TYPE_NONE              0x4
   611	# define SSL_CONF_TYPE_STORE             0x5
   612	
   613	/* Maximum length of the application-controlled segment of a a TLSv1.3 cookie */
   614	# define SSL_COOKIE_LENGTH                       4096
   615	
   616	/*
   617	 * Note: SSL[_CTX]_set_{options,mode} use |= op on the previous value, they
   618	 * cannot be used to clear bits.
   619	 */
   620	
   621	uint64_t SSL_CTX_get_options(const SSL_CTX *ctx);
   622	uint64_t SSL_get_options(const SSL *s);
   623	uint64_t SSL_CTX_clear_options(SSL_CTX *ctx, uint64_t op);
   624	uint64_t SSL_clear_options(SSL *s, uint64_t op);
   625	uint64_t SSL_CTX_set_options(SSL_CTX *ctx, uint64_t op);
   626	uint64_t SSL_set_options(SSL *s, uint64_t op);
   627	
   628	# define SSL_CTX_set_mode(ctx,op) \
   629	        SSL_CTX_ctrl((ctx),SSL_CTRL_MODE,(op),NULL)
   630	# define SSL_CTX_clear_mode(ctx,op) \
   631	        SSL_CTX_ctrl((ctx),SSL_CTRL_CLEAR_MODE,(op),NULL)
   632	# define SSL_CTX_get_mode(ctx) \
   633	        SSL_CTX_ctrl((ctx),SSL_CTRL_MODE,0,NULL)
   634	# define SSL_clear_mode(ssl,op) \
   635	        SSL_ctrl((ssl),SSL_CTRL_CLEAR_MODE,(op),NULL)
   636	# define SSL_set_mode(ssl,op) \
   637	        SSL_ctrl((ssl),SSL_CTRL_MODE,(op),NULL)
   638	# define SSL_get_mode(ssl) \
   639	        SSL_ctrl((ssl),SSL_CTRL_MODE,0,NULL)
   640	# define SSL_set_mtu(ssl, mtu) \
   641	        SSL_ctrl((ssl),SSL_CTRL_SET_MTU,(mtu),NULL)
   642	# define DTLS_set_link_mtu(ssl, mtu) \
   643	        SSL_ctrl((ssl),DTLS_CTRL_SET_LINK_MTU,(mtu),NULL)
   644	# define DTLS_get_link_min_mtu(ssl) \
   645	        SSL_ctrl((ssl),DTLS_CTRL_GET_LINK_MIN_MTU,0,NULL)
   646	
   647	# define SSL_get_secure_renegotiation_support(ssl) \
   648	        SSL_ctrl((ssl), SSL_CTRL_GET_RI_SUPPORT, 0, NULL)
   649	
   650	# define SSL_CTX_set_cert_flags(ctx,op) \
   651	        SSL_CTX_ctrl((ctx),SSL_CTRL_CERT_FLAGS,(op),NULL)
   652	# define SSL_set_cert_flags(s,op) \
   653	        SSL_ctrl((s),SSL_CTRL_CERT_FLAGS,(op),NULL)
   654	# define SSL_CTX_clear_cert_flags(ctx,op) \
   655	        SSL_CTX_ctrl((ctx),SSL_CTRL_CLEAR_CERT_FLAGS,(op),NULL)
   656	# define SSL_clear_cert_flags(s,op) \
   657	        SSL_ctrl((s),SSL_CTRL_CLEAR_CERT_FLAGS,(op),NULL)
   658	
   659	void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
   660	                              void (*cb) (int write_p, int version,
   661	                                          int content_type, const void *buf,
   662	                                          size_t len, SSL *ssl, void *arg));
   663	void SSL_set_msg_callback(SSL *ssl,
   664	                          void (*cb) (int write_p, int version,
   665	                                      int content_type, const void *buf,
   666	                                      size_t len, SSL *ssl, void *arg));
   667	# define SSL_CTX_set_msg_callback_arg(ctx, arg) SSL_CTX_ctrl((ctx), SSL_CTRL_SET_MSG_CALLBACK_ARG, 0, (arg))
   668	# define SSL_set_msg_callback_arg(ssl, arg) SSL_ctrl((ssl), SSL_CTRL_SET_MSG_CALLBACK_ARG, 0, (arg))
   669	
   670	# define SSL_get_extms_support(s) \
   671	        SSL_ctrl((s),SSL_CTRL_GET_EXTMS_SUPPORT,0,NULL)
   672	
   673	# ifndef OPENSSL_NO_SRP
   674	/* see tls_srp.c */
   675	#  ifndef OPENSSL_NO_DEPRECATED_3_0
   676	OSSL_DEPRECATEDIN_3_0 __owur int SSL_SRP_CTX_init(SSL *s);
   677	OSSL_DEPRECATEDIN_3_0 __owur int SSL_CTX_SRP_CTX_init(SSL_CTX *ctx);
   678	OSSL_DEPRECATEDIN_3_0 int SSL_SRP_CTX_free(SSL *ctx);
   679	OSSL_DEPRECATEDIN_3_0 int SSL_CTX_SRP_CTX_free(SSL_CTX *ctx);
   680	OSSL_DEPRECATEDIN_3_0 __owur int SSL_srp_server_param_with_username(SSL *s,
   681	                                                                    int *ad);
   682	OSSL_DEPRECATEDIN_3_0 __owur int SRP_Calc_A_param(SSL *s);
   683	#  endif
   684	# endif
   685	
   686	/* 100k max cert list */
   687	# define SSL_MAX_CERT_LIST_DEFAULT (1024*100)
   688	
   689	# define SSL_SESSION_CACHE_MAX_SIZE_DEFAULT      (1024*20)
   690	
   691	/*
   692	 * This callback type is used inside SSL_CTX, SSL, and in the functions that
   693	 * set them. It is used to override the generation of SSL/TLS session IDs in
   694	 * a server. Return value should be zero on an error, non-zero to proceed.
   695	 * Also, callbacks should themselves check if the id they generate is unique
   696	 * otherwise the SSL handshake will fail with an error - callbacks can do
   697	 * this using the 'ssl' value they're passed by;
   698	 * SSL_has_matching_session_id(ssl, id, *id_len) The length value passed in
   699	 * is set at the maximum size the session ID can be. In SSLv3/TLSv1 it is 32
   700	 * bytes. The callback can alter this length to be less if desired. It is
   701	 * also an error for the callback to set the size to zero.
   702	 */
   703	typedef int (*GEN_SESSION_CB) (SSL *ssl, unsigned char *id,
   704	                               unsigned int *id_len);
   705	
   706	# define SSL_SESS_CACHE_OFF                      0x0000
   707	# define SSL_SESS_CACHE_CLIENT                   0x0001
   708	# define SSL_SESS_CACHE_SERVER                   0x0002
   709	# define SSL_SESS_CACHE_BOTH     (SSL_SESS_CACHE_CLIENT|SSL_SESS_CACHE_SERVER)
   710	# define SSL_SESS_CACHE_NO_AUTO_CLEAR            0x0080
   711	/* enough comments already ... see SSL_CTX_set_session_cache_mode(3) */
   712	# define SSL_SESS_CACHE_NO_INTERNAL_LOOKUP       0x0100
   713	# define SSL_SESS_CACHE_NO_INTERNAL_STORE        0x0200
   714	# define SSL_SESS_CACHE_NO_INTERNAL \
   715	        (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP|SSL_SESS_CACHE_NO_INTERNAL_STORE)
   716	# define SSL_SESS_CACHE_UPDATE_TIME              0x0400
   717	
   718	LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx);
   719	# define SSL_CTX_sess_number(ctx) \
   720	        SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_NUMBER,0,NULL)
   721	# define SSL_CTX_sess_connect(ctx) \
   722	        SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_CONNECT,0,NULL)
   723	# define SSL_CTX_sess_connect_good(ctx) \
   724	        SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_CONNECT_GOOD,0,NULL)
   725	# define SSL_CTX_sess_connect_renegotiate(ctx) \
   726	        SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_CONNECT_RENEGOTIATE,0,NULL)
   727	# define SSL_CTX_sess_accept(ctx) \
   728	        SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_ACCEPT,0,NULL)
   729	# define SSL_CTX_sess_accept_renegotiate(ctx) \
   730	        SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_ACCEPT_RENEGOTIATE,0,NULL)
   731	# define SSL_CTX_sess_accept_good(ctx) \
   732	        SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_ACCEPT_GOOD,0,NULL)
   733	# define SSL_CTX_sess_hits(ctx) \
   734	        SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_HIT,0,NULL)
   735	# define SSL_CTX_sess_cb_hits(ctx) \
   736	        SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_CB_HIT,0,NULL)
   737	# define SSL_CTX_sess_misses(ctx) \
   738	        SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_MISSES,0,NULL)
   739	# define SSL_CTX_sess_timeouts(ctx) \
   740	        SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_TIMEOUTS,0,NULL)
   741	# define SSL_CTX_sess_cache_full(ctx) \
   742	        SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_CACHE_FULL,0,NULL)
   743	
   744	void SSL_CTX_sess_set_new_cb(SSL_CTX *ctx,
   745	                             int (*new_session_cb) (struct ssl_st *ssl,
   746	                                                    SSL_SESSION *sess));
   747	int (*SSL_CTX_sess_get_new_cb(SSL_CTX *ctx)) (struct ssl_st *ssl,
   748	                                              SSL_SESSION *sess);
   749	void SSL_CTX_sess_set_remove_cb(SSL_CTX *ctx,
   750	                                void (*remove_session_cb) (struct ssl_ctx_st
   751	                                                           *ctx,
   752	                                                           SSL_SESSION *sess));
   753	void (*SSL_CTX_sess_get_remove_cb(SSL_CTX *ctx)) (struct ssl_ctx_st *ctx,
   754	                                                  SSL_SESSION *sess);
   755	void SSL_CTX_sess_set_get_cb(SSL_CTX *ctx,
   756	                             SSL_SESSION *(*get_session_cb) (struct ssl_st
   757	                                                             *ssl,
   758	                                                             const unsigned char
   759	                                                             *data, int len,
   760	                                                             int *copy));
   761	SSL_SESSION *(*SSL_CTX_sess_get_get_cb(SSL_CTX *ctx)) (struct ssl_st *ssl,
   762	                                                       const unsigned char *data,
   763	                                                       int len, int *copy);
   764	void SSL_CTX_set_info_callback(SSL_CTX *ctx,
   765	                               void (*cb) (const SSL *ssl, int type, int val));
   766	void (*SSL_CTX_get_info_callback(SSL_CTX *ctx)) (const SSL *ssl, int type,
   767	                                                 int val);
   768	void SSL_CTX_set_client_cert_cb(SSL_CTX *ctx,
   769	                                int (*client_cert_cb) (SSL *ssl, X509 **x509,
   770	                                                       EVP_PKEY **pkey));
   771	int (*SSL_CTX_get_client_cert_cb(SSL_CTX *ctx)) (SSL *ssl, X509 **x509,
   772	                                                 EVP_PKEY **pkey);
   773	# ifndef OPENSSL_NO_ENGINE
   774	__owur int SSL_CTX_set_client_cert_engine(SSL_CTX *ctx, ENGINE *e);
   775	# endif
   776	void SSL_CTX_set_cookie_generate_cb(SSL_CTX *ctx,
   777	                                    int (*app_gen_cookie_cb) (SSL *ssl,
   778	                                                              unsigned char
   779	                                                              *cookie,
   780	                                                              unsigned int
   781	                                                              *cookie_len));
   782	void SSL_CTX_set_cookie_verify_cb(SSL_CTX *ctx,
   783	                                  int (*app_verify_cookie_cb) (SSL *ssl,
   784	                                                               const unsigned
   785	                                                               char *cookie,
   786	                                                               unsigned int
   787	                                                               cookie_len));
   788	
   789	void SSL_CTX_set_stateless_cookie_generate_cb(
   790	    SSL_CTX *ctx,
   791	    int (*gen_stateless_cookie_cb) (SSL *ssl,
   792	                                    unsigned char *cookie,
   793	                                    size_t *cookie_len));
   794	void SSL_CTX_set_stateless_cookie_verify_cb(
   795	    SSL_CTX *ctx,
   796	    int (*verify_stateless_cookie_cb) (SSL *ssl,
   797	                                       const unsigned char *cookie,
   798	                                       size_t cookie_len));
   799	# ifndef OPENSSL_NO_NEXTPROTONEG
   800	
   801	typedef int (*SSL_CTX_npn_advertised_cb_func)(SSL *ssl,
   802	                                              const unsigned char **out,
   803	                                              unsigned int *outlen,
   804	                                              void *arg);
   805	void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *s,
   806	                                           SSL_CTX_npn_advertised_cb_func cb,
   807	                                           void *arg);
   808	#  define SSL_CTX_set_npn_advertised_cb SSL_CTX_set_next_protos_advertised_cb
   809	
   810	typedef int (*SSL_CTX_npn_select_cb_func)(SSL *s,
   811	                                          unsigned char **out,
   812	                                          unsigned char *outlen,
   813	                                          const unsigned char *in,
   814	                                          unsigned int inlen,
   815	                                          void *arg);
   816	void SSL_CTX_set_next_proto_select_cb(SSL_CTX *s,
   817	                                      SSL_CTX_npn_select_cb_func cb,
   818	                                      void *arg);
   819	#  define SSL_CTX_set_npn_select_cb SSL_CTX_set_next_proto_select_cb
   820	
   821	void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
   822	                                    unsigned *len);
   823	#  define SSL_get0_npn_negotiated SSL_get0_next_proto_negotiated
   824	# endif
   825	
   826	__owur int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
   827	                                 const unsigned char *in, unsigned int inlen,
   828	                                 const unsigned char *client,
   829	                                 unsigned int client_len);
   830	
   831	# define OPENSSL_NPN_UNSUPPORTED 0
   832	# define OPENSSL_NPN_NEGOTIATED  1
   833	# define OPENSSL_NPN_NO_OVERLAP  2
   834	
   835	__owur int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
   836	                                   unsigned int protos_len);
   837	__owur int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
   838	                               unsigned int protos_len);
   839	typedef int (*SSL_CTX_alpn_select_cb_func)(SSL *ssl,
   840	                                           const unsigned char **out,
   841	                                           unsigned char *outlen,
   842	                                           const unsigned char *in,
   843	                                           unsigned int inlen,
   844	                                           void *arg);
   845	void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
   846	                                SSL_CTX_alpn_select_cb_func cb,
   847	                                void *arg);
   848	void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
   849	                            unsigned int *len);
   850	
   851	# ifndef OPENSSL_NO_PSK
   852	/*
   853	 * the maximum length of the buffer given to callbacks containing the
   854	 * resulting identity/psk
   855	 */
   856	#  define PSK_MAX_IDENTITY_LEN 256
   857	#  define PSK_MAX_PSK_LEN 512
   858	typedef unsigned int (*SSL_psk_client_cb_func)(SSL *ssl,
   859	                                               const char *hint,
   860	                                               char *identity,
   861	                                               unsigned int max_identity_len,
   862	                                               unsigned char *psk,
   863	                                               unsigned int max_psk_len);
   864	void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb);
   865	void SSL_set_psk_client_callback(SSL *ssl, SSL_psk_client_cb_func cb);
   866	
   867	typedef unsigned int (*SSL_psk_server_cb_func)(SSL *ssl,
   868	                                               const char *identity,
   869	                                               unsigned char *psk,
   870	                                               unsigned int max_psk_len);
   871	void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb);
   872	void SSL_set_psk_server_callback(SSL *ssl, SSL_psk_server_cb_func cb);
   873	
   874	__owur int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint);
   875	__owur int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint);
   876	const char *SSL_get_psk_identity_hint(const SSL *s);
   877	const char *SSL_get_psk_identity(const SSL *s);
   878	# endif
   879	
   880	typedef int (*SSL_psk_find_session_cb_func)(SSL *ssl,
   881	                                            const unsigned char *identity,
   882	                                            size_t identity_len,
   883	                                            SSL_SESSION **sess);
   884	typedef int (*SSL_psk_use_session_cb_func)(SSL *ssl, const EVP_MD *md,
   885	                                           const unsigned char **id,
   886	                                           size_t *idlen,
   887	                                           SSL_SESSION **sess);
   888	
   889	void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb);
   890	void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
   891	                                           SSL_psk_find_session_cb_func cb);
   892	void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb);
   893	void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
   894	                                          SSL_psk_use_session_cb_func cb);
   895	
   896	/* Register callbacks to handle custom TLS Extensions for client or server. */
   897	
   898	__owur int SSL_CTX_has_client_custom_ext(const SSL_CTX *ctx,
   899	                                         unsigned int ext_type);
   900	
   901	__owur int SSL_CTX_add_client_custom_ext(SSL_CTX *ctx,
   902	                                         unsigned int ext_type,
   903	                                         custom_ext_add_cb add_cb,
   904	                                         custom_ext_free_cb free_cb,
   905	                                         void *add_arg,
   906	                                         custom_ext_parse_cb parse_cb,
   907	                                         void *parse_arg);
   908	
   909	__owur int SSL_CTX_add_server_custom_ext(SSL_CTX *ctx,
   910	                                         unsigned int ext_type,
   911	                                         custom_ext_add_cb add_cb,
   912	                                         custom_ext_free_cb free_cb,
   913	                                         void *add_arg,
   914	                                         custom_ext_parse_cb parse_cb,
   915	                                         void *parse_arg);
   916	
   917	__owur int SSL_CTX_add_custom_ext(SSL_CTX *ctx, unsigned int ext_type,
   918	                                  unsigned int context,
   919	                                  SSL_custom_ext_add_cb_ex add_cb,
   920	                                  SSL_custom_ext_free_cb_ex free_cb,
   921	                                  void *add_arg,
   922	                                  SSL_custom_ext_parse_cb_ex parse_cb,
   923	                                  void *parse_arg);
   924	
   925	__owur int SSL_extension_supported(unsigned int ext_type);
   926	
   927	# define SSL_NOTHING            1
   928	# define SSL_WRITING            2
   929	# define SSL_READING            3
   930	# define SSL_X509_LOOKUP        4
   931	# define SSL_ASYNC_PAUSED       5
   932	# define SSL_ASYNC_NO_JOBS      6
   933	# define SSL_CLIENT_HELLO_CB    7
   934	# define SSL_RETRY_VERIFY       8
   935	
   936	/* These will only be used when doing non-blocking IO */
   937	# define SSL_want_nothing(s)         (SSL_want(s) == SSL_NOTHING)
   938	# define SSL_want_read(s)            (SSL_want(s) == SSL_READING)
   939	# define SSL_want_write(s)           (SSL_want(s) == SSL_WRITING)
   940	# define SSL_want_x509_lookup(s)     (SSL_want(s) == SSL_X509_LOOKUP)
   941	# define SSL_want_retry_verify(s)    (SSL_want(s) == SSL_RETRY_VERIFY)
   942	# define SSL_want_async(s)           (SSL_want(s) == SSL_ASYNC_PAUSED)
   943	# define SSL_want_async_job(s)       (SSL_want(s) == SSL_ASYNC_NO_JOBS)
   944	# define SSL_want_client_hello_cb(s) (SSL_want(s) == SSL_CLIENT_HELLO_CB)
   945	
   946	# define SSL_MAC_FLAG_READ_MAC_STREAM 1
   947	# define SSL_MAC_FLAG_WRITE_MAC_STREAM 2
   948	# define SSL_MAC_FLAG_READ_MAC_TLSTREE 4
   949	# define SSL_MAC_FLAG_WRITE_MAC_TLSTREE 8
   950	
   951	/*
   952	 * A callback for logging out TLS key material. This callback should log out
   953	 * |line| followed by a newline.
   954	 */
   955	typedef void (*SSL_CTX_keylog_cb_func)(const SSL *ssl, const char *line);
   956	
   957	/*
   958	 * SSL_CTX_set_keylog_callback configures a callback to log key material. This
   959	 * is intended for debugging use with tools like Wireshark. The cb function
   960	 * should log line followed by a newline.
   961	 */
   962	void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb);
   963	
   964	/*
   965	 * SSL_CTX_get_keylog_callback returns the callback configured by
   966	 * SSL_CTX_set_keylog_callback.
   967	 */
   968	SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx);
   969	
   970	int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data);
   971	uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx);
   972	int SSL_set_max_early_data(SSL *s, uint32_t max_early_data);
   973	uint32_t SSL_get_max_early_data(const SSL *s);
   974	int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data);
   975	uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx);
   976	int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data);
   977	uint32_t SSL_get_recv_max_early_data(const SSL *s);
   978	
   979	#ifdef __cplusplus
   980	}
   981	#endif
   982	
   983	# include <openssl/ssl2.h>
   984	# include <openssl/ssl3.h>
   985	# include <openssl/tls1.h>      /* This is mostly sslv3 with a few tweaks */
   986	# include <openssl/dtls1.h>     /* Datagram TLS */
   987	# include <openssl/srtp.h>      /* Support for the use_srtp extension */
   988	# include <openssl/quic.h>
   989	
   990	#ifdef  __cplusplus
   991	extern "C" {
   992	#endif
   993	
   994	/*
   995	 * These need to be after the above set of includes due to a compiler bug
   996	 * in VisualStudio 2015
   997	 */
   998	SKM_DEFINE_STACK_OF_INTERNAL(SSL_CIPHER, const SSL_CIPHER, SSL_CIPHER)
   999	#define sk_SSL_CIPHER_num(sk) OPENSSL_sk_num(ossl_check_const_SSL_CIPHER_sk_type(sk))
  1000	#define sk_SSL_CIPHER_value(sk, idx) ((const SSL_CIPHER *)OPENSSL_sk_value(ossl_check_const_SSL_CIPHER_sk_type(sk), (idx)))
  1001	#define sk_SSL_CIPHER_new(cmp) ((STACK_OF(SSL_CIPHER) *)OPENSSL_sk_new(ossl_check_SSL_CIPHER_compfunc_type(cmp)))
  1002	#define sk_SSL_CIPHER_new_null() ((STACK_OF(SSL_CIPHER) *)OPENSSL_sk_new_null())
  1003	#define sk_SSL_CIPHER_new_reserve(cmp, n) ((STACK_OF(SSL_CIPHER) *)OPENSSL_sk_new_reserve(ossl_check_SSL_CIPHER_compfunc_type(cmp), (n)))
  1004	#define sk_SSL_CIPHER_reserve(sk, n) OPENSSL_sk_reserve(ossl_check_SSL_CIPHER_sk_type(sk), (n))
  1005	#define sk_SSL_CIPHER_free(sk) OPENSSL_sk_free(ossl_check_SSL_CIPHER_sk_type(sk))
  1006	#define sk_SSL_CIPHER_zero(sk) OPENSSL_sk_zero(ossl_check_SSL_CIPHER_sk_type(sk))
  1007	#define sk_SSL_CIPHER_delete(sk, i) ((const SSL_CIPHER *)OPENSSL_sk_delete(ossl_check_SSL_CIPHER_sk_type(sk), (i)))
  1008	#define sk_SSL_CIPHER_delete_ptr(sk, ptr) ((const SSL_CIPHER *)OPENSSL_sk_delete_ptr(ossl_check_SSL_CIPHER_sk_type(sk), ossl_check_SSL_CIPHER_type(ptr)))
  1009	#define sk_SSL_CIPHER_push(sk, ptr) OPENSSL_sk_push(ossl_check_SSL_CIPHER_sk_type(sk), ossl_check_SSL_CIPHER_type(ptr))
  1010	#define sk_SSL_CIPHER_unshift(sk, ptr) OPENSSL_sk_unshift(ossl_check_SSL_CIPHER_sk_type(sk), ossl_check_SSL_CIPHER_type(ptr))
  1011	#define sk_SSL_CIPHER_pop(sk) ((const SSL_CIPHER *)OPENSSL_sk_pop(ossl_check_SSL_CIPHER_sk_type(sk)))
  1012	#define sk_SSL_CIPHER_shift(sk) ((const SSL_CIPHER *)OPENSSL_sk_shift(ossl_check_SSL_CIPHER_sk_type(sk)))
  1013	#define sk_SSL_CIPHER_pop_free(sk, freefunc) OPENSSL_sk_pop_free(ossl_check_SSL_CIPHER_sk_type(sk),ossl_check_SSL_CIPHER_freefunc_type(freefunc))
  1014	#define sk_SSL_CIPHER_insert(sk, ptr, idx) OPENSSL_sk_insert(ossl_check_SSL_CIPHER_sk_type(sk), ossl_check_SSL_CIPHER_type(ptr), (idx))
  1015	#define sk_SSL_CIPHER_set(sk, idx, ptr) ((const SSL_CIPHER *)OPENSSL_sk_set(ossl_check_SSL_CIPHER_sk_type(sk), (idx), ossl_check_SSL_CIPHER_type(ptr)))
  1016	#define sk_SSL_CIPHER_find(sk, ptr) OPENSSL_sk_find(ossl_check_SSL_CIPHER_sk_type(sk), ossl_check_SSL_CIPHER_type(ptr))
  1017	#define sk_SSL_CIPHER_find_ex(sk, ptr) OPENSSL_sk_find_ex(ossl_check_SSL_CIPHER_sk_type(sk), ossl_check_SSL_CIPHER_type(ptr))
  1018	#define sk_SSL_CIPHER_find_all(sk, ptr, pnum) OPENSSL_sk_find_all(ossl_check_SSL_CIPHER_sk_type(sk), ossl_check_SSL_CIPHER_type(ptr), pnum)
  1019	#define sk_SSL_CIPHER_sort(sk) OPENSSL_sk_sort(ossl_check_SSL_CIPHER_sk_type(sk))
  1020	#define sk_SSL_CIPHER_is_sorted(sk) OPENSSL_sk_is_sorted(ossl_check_const_SSL_CIPHER_sk_type(sk))
  1021	#define sk_SSL_CIPHER_dup(sk) ((STACK_OF(SSL_CIPHER) *)OPENSSL_sk_dup(ossl_check_const_SSL_CIPHER_sk_type(sk)))
  1022	#define sk_SSL_CIPHER_deep_copy(sk, copyfunc, freefunc) ((STACK_OF(SSL_CIPHER) *)OPENSSL_sk_deep_copy(ossl_check_const_SSL_CIPHER_sk_type(sk), ossl_check_SSL_CIPHER_copyfunc_type(copyfunc), ossl_check_SSL_CIPHER_freefunc_type(freefunc)))
  1023	#define sk_SSL_CIPHER_set_cmp_func(sk, cmp) ((sk_SSL_CIPHER_compfunc)OPENSSL_sk_set_cmp_func(ossl_check_SSL_CIPHER_sk_type(sk), ossl_check_SSL_CIPHER_compfunc_type(cmp)))
  1024	
  1025	
  1026	/* compatibility */
  1027	# define SSL_set_app_data(s,arg)         (SSL_set_ex_data(s,0,(char *)(arg)))
  1028	# define SSL_get_app_data(s)             (SSL_get_ex_data(s,0))
  1029	# define SSL_SESSION_set_app_data(s,a)   (SSL_SESSION_set_ex_data(s,0, \
  1030	                                                                  (char *)(a)))
  1031	# define SSL_SESSION_get_app_data(s)     (SSL_SESSION_get_ex_data(s,0))
  1032	# define SSL_CTX_get_app_data(ctx)       (SSL_CTX_get_ex_data(ctx,0))
  1033	# define SSL_CTX_set_app_data(ctx,arg)   (SSL_CTX_set_ex_data(ctx,0, \
  1034	                                                              (char *)(arg)))
  1035	# ifndef OPENSSL_NO_DEPRECATED_1_1_0
  1036	OSSL_DEPRECATEDIN_1_1_0 void SSL_set_debug(SSL *s, int debug);
  1037	# endif
  1038	
  1039	/* TLSv1.3 KeyUpdate message types */
  1040	/* -1 used so that this is an invalid value for the on-the-wire protocol */
  1041	#define SSL_KEY_UPDATE_NONE             -1
  1042	/* Values as defined for the on-the-wire protocol */
  1043	#define SSL_KEY_UPDATE_NOT_REQUESTED     0
  1044	#define SSL_KEY_UPDATE_REQUESTED         1
  1045	
  1046	/*
  1047	 * The valid handshake states (one for each type message sent and one for each
  1048	 * type of message received). There are also two "special" states:
  1049	 * TLS = TLS or DTLS state
  1050	 * DTLS = DTLS specific state
  1051	 * CR/SR = Client Read/Server Read
  1052	 * CW/SW = Client Write/Server Write
  1053	 *
  1054	 * The "special" states are:
  1055	 * TLS_ST_BEFORE = No handshake has been initiated yet
  1056	 * TLS_ST_OK = A handshake has been successfully completed
  1057	 */
  1058	typedef enum {
  1059	    TLS_ST_BEFORE,
  1060	    TLS_ST_OK,
  1061	    DTLS_ST_CR_HELLO_VERIFY_REQUEST,
  1062	    TLS_ST_CR_SRVR_HELLO,
  1063	    TLS_ST_CR_CERT,
  1064	    TLS_ST_CR_COMP_CERT,
  1065	    TLS_ST_CR_CERT_STATUS,
  1066	    TLS_ST_CR_KEY_EXCH,
  1067	    TLS_ST_CR_CERT_REQ,
  1068	    TLS_ST_CR_SRVR_DONE,
  1069	    TLS_ST_CR_SESSION_TICKET,
  1070	    TLS_ST_CR_CHANGE,
  1071	    TLS_ST_CR_FINISHED,
  1072	    TLS_ST_CW_CLNT_HELLO,
  1073	    TLS_ST_CW_CERT,
  1074	    TLS_ST_CW_COMP_CERT,
  1075	    TLS_ST_CW_KEY_EXCH,
  1076	    TLS_ST_CW_CERT_VRFY,
  1077	    TLS_ST_CW_CHANGE,
  1078	    TLS_ST_CW_NEXT_PROTO,
  1079	    TLS_ST_CW_FINISHED,
  1080	    TLS_ST_SW_HELLO_REQ,
  1081	    TLS_ST_SR_CLNT_HELLO,
  1082	    DTLS_ST_SW_HELLO_VERIFY_REQUEST,
  1083	    TLS_ST_SW_SRVR_HELLO,
  1084	    TLS_ST_SW_CERT,
  1085	    TLS_ST_SW_COMP_CERT,
  1086	    TLS_ST_SW_KEY_EXCH,
  1087	    TLS_ST_SW_CERT_REQ,
  1088	    TLS_ST_SW_SRVR_DONE,
  1089	    TLS_ST_SR_CERT,
  1090	    TLS_ST_SR_COMP_CERT,
  1091	    TLS_ST_SR_KEY_EXCH,
  1092	    TLS_ST_SR_CERT_VRFY,
  1093	    TLS_ST_SR_NEXT_PROTO,
  1094	    TLS_ST_SR_CHANGE,
  1095	    TLS_ST_SR_FINISHED,
  1096	    TLS_ST_SW_SESSION_TICKET,
  1097	    TLS_ST_SW_CERT_STATUS,
  1098	    TLS_ST_SW_CHANGE,
  1099	    TLS_ST_SW_FINISHED,
  1100	    TLS_ST_SW_ENCRYPTED_EXTENSIONS,
  1101	    TLS_ST_CR_ENCRYPTED_EXTENSIONS,
  1102	    TLS_ST_CR_CERT_VRFY,
  1103	    TLS_ST_SW_CERT_VRFY,
  1104	    TLS_ST_CR_HELLO_REQ,
  1105	    TLS_ST_SW_KEY_UPDATE,
  1106	    TLS_ST_CW_KEY_UPDATE,
  1107	    TLS_ST_SR_KEY_UPDATE,
  1108	    TLS_ST_CR_KEY_UPDATE,
  1109	    TLS_ST_EARLY_DATA,
  1110	    TLS_ST_PENDING_EARLY_DATA_END,
  1111	    TLS_ST_CW_END_OF_EARLY_DATA,
  1112	    TLS_ST_SR_END_OF_EARLY_DATA
  1113	} OSSL_HANDSHAKE_STATE;
  1114	
  1115	/*
  1116	 * Most of the following state values are no longer used and are defined to be
  1117	 * the closest equivalent value in the current state machine code. Not all
  1118	 * defines have an equivalent and are set to a dummy value (-1). SSL_ST_CONNECT
  1119	 * and SSL_ST_ACCEPT are still in use in the definition of SSL_CB_ACCEPT_LOOP,
  1120	 * SSL_CB_ACCEPT_EXIT, SSL_CB_CONNECT_LOOP and SSL_CB_CONNECT_EXIT.
  1121	 */
  1122	
  1123	# define SSL_ST_CONNECT                  0x1000
  1124	# define SSL_ST_ACCEPT                   0x2000
  1125	
  1126	# define SSL_ST_MASK                     0x0FFF
  1127	
  1128	# define SSL_CB_LOOP                     0x01
  1129	# define SSL_CB_EXIT                     0x02
  1130	# define SSL_CB_READ                     0x04
  1131	# define SSL_CB_WRITE                    0x08
  1132	# define SSL_CB_ALERT                    0x4000/* used in callback */
  1133	# define SSL_CB_READ_ALERT               (SSL_CB_ALERT|SSL_CB_READ)
  1134	# define SSL_CB_WRITE_ALERT              (SSL_CB_ALERT|SSL_CB_WRITE)
  1135	# define SSL_CB_ACCEPT_LOOP              (SSL_ST_ACCEPT|SSL_CB_LOOP)
  1136	# define SSL_CB_ACCEPT_EXIT              (SSL_ST_ACCEPT|SSL_CB_EXIT)
  1137	# define SSL_CB_CONNECT_LOOP             (SSL_ST_CONNECT|SSL_CB_LOOP)
  1138	# define SSL_CB_CONNECT_EXIT             (SSL_ST_CONNECT|SSL_CB_EXIT)
  1139	# define SSL_CB_HANDSHAKE_START          0x10
  1140	# define SSL_CB_HANDSHAKE_DONE           0x20
  1141	
  1142	/* Is the SSL_connection established? */
  1143	# define SSL_in_connect_init(a)          (SSL_in_init(a) && !SSL_is_server(a))
  1144	# define SSL_in_accept_init(a)           (SSL_in_init(a) && SSL_is_server(a))
  1145	int SSL_in_init(const SSL *s);
  1146	int SSL_in_before(const SSL *s);
  1147	int SSL_is_init_finished(const SSL *s);
  1148	
  1149	/*
  1150	 * The following 3 states are kept in ssl->rlayer.rstate when reads fail, you
  1151	 * should not need these
  1152	 */
  1153	# define SSL_ST_READ_HEADER                      0xF0
  1154	# define SSL_ST_READ_BODY                        0xF1
  1155	# define SSL_ST_READ_DONE                        0xF2
  1156	
  1157	/*-
  1158	 * Obtain latest Finished message
  1159	 *   -- that we sent (SSL_get_finished)
  1160	 *   -- that we expected from peer (SSL_get_peer_finished).
  1161	 * Returns length (0 == no Finished so far), copies up to 'count' bytes.
  1162	 */
  1163	size_t SSL_get_finished(const SSL *s, void *buf, size_t count);
  1164	size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count);
  1165	
  1166	/*
  1167	 * use either SSL_VERIFY_NONE or SSL_VERIFY_PEER, the last 3 options are
  1168	 * 'ored' with SSL_VERIFY_PEER if they are desired
  1169	 */
  1170	# define SSL_VERIFY_NONE                 0x00
  1171	# define SSL_VERIFY_PEER                 0x01
  1172	# define SSL_VERIFY_FAIL_IF_NO_PEER_CERT 0x02
  1173	# define SSL_VERIFY_CLIENT_ONCE          0x04
  1174	# define SSL_VERIFY_POST_HANDSHAKE       0x08
  1175	
  1176	# ifndef OPENSSL_NO_DEPRECATED_1_1_0
  1177	#  define OpenSSL_add_ssl_algorithms()   SSL_library_init()
  1178	#  define SSLeay_add_ssl_algorithms()    SSL_library_init()
  1179	# endif
  1180	
  1181	/* More backward compatibility */
  1182	# define SSL_get_cipher(s) \
  1183	                SSL_CIPHER_get_name(SSL_get_current_cipher(s))
  1184	# define SSL_get_cipher_bits(s,np) \
  1185	                SSL_CIPHER_get_bits(SSL_get_current_cipher(s),np)
  1186	# define SSL_get_cipher_version(s) \
  1187	                SSL_CIPHER_get_version(SSL_get_current_cipher(s))
  1188	# define SSL_get_cipher_name(s) \
  1189	                SSL_CIPHER_get_name(SSL_get_current_cipher(s))
  1190	# define SSL_get_time(a)         SSL_SESSION_get_time(a)
  1191	# define SSL_set_time(a,b)       SSL_SESSION_set_time((a),(b))
  1192	# define SSL_get_timeout(a)      SSL_SESSION_get_timeout(a)
  1193	# define SSL_set_timeout(a,b)    SSL_SESSION_set_timeout((a),(b))
  1194	
  1195	# define d2i_SSL_SESSION_bio(bp,s_id) ASN1_d2i_bio_of(SSL_SESSION,SSL_SESSION_new,d2i_SSL_SESSION,bp,s_id)
  1196	# define i2d_SSL_SESSION_bio(bp,s_id) ASN1_i2d_bio_of(SSL_SESSION,i2d_SSL_SESSION,bp,s_id)
  1197	
  1198	DECLARE_PEM_rw(SSL_SESSION, SSL_SESSION)
  1199	# define SSL_AD_REASON_OFFSET            1000/* offset to get SSL_R_... value
  1200	                                              * from SSL_AD_... */
  1201	/* These alert types are for SSLv3 and TLSv1 */
  1202	# define SSL_AD_CLOSE_NOTIFY             SSL3_AD_CLOSE_NOTIFY
  1203	/* fatal */
  1204	# define SSL_AD_UNEXPECTED_MESSAGE       SSL3_AD_UNEXPECTED_MESSAGE
  1205	/* fatal */
  1206	# define SSL_AD_BAD_RECORD_MAC           SSL3_AD_BAD_RECORD_MAC
  1207	# define SSL_AD_DECRYPTION_FAILED        TLS1_AD_DECRYPTION_FAILED
  1208	# define SSL_AD_RECORD_OVERFLOW          TLS1_AD_RECORD_OVERFLOW
  1209	/* fatal */
  1210	# define SSL_AD_DECOMPRESSION_FAILURE    SSL3_AD_DECOMPRESSION_FAILURE
  1211	/* fatal */
  1212	# define SSL_AD_HANDSHAKE_FAILURE        SSL3_AD_HANDSHAKE_FAILURE
  1213	/* Not for TLS */
  1214	# define SSL_AD_NO_CERTIFICATE           SSL3_AD_NO_CERTIFICATE
  1215	# define SSL_AD_BAD_CERTIFICATE          SSL3_AD_BAD_CERTIFICATE
  1216	# define SSL_AD_UNSUPPORTED_CERTIFICATE  SSL3_AD_UNSUPPORTED_CERTIFICATE
  1217	# define SSL_AD_CERTIFICATE_REVOKED      SSL3_AD_CERTIFICATE_REVOKED
  1218	# define SSL_AD_CERTIFICATE_EXPIRED      SSL3_AD_CERTIFICATE_EXPIRED
  1219	# define SSL_AD_CERTIFICATE_UNKNOWN      SSL3_AD_CERTIFICATE_UNKNOWN
  1220	/* fatal */
  1221	# define SSL_AD_ILLEGAL_PARAMETER        SSL3_AD_ILLEGAL_PARAMETER
  1222	/* fatal */
  1223	# define SSL_AD_UNKNOWN_CA               TLS1_AD_UNKNOWN_CA
  1224	/* fatal */
  1225	# define SSL_AD_ACCESS_DENIED            TLS1_AD_ACCESS_DENIED
  1226	/* fatal */
  1227	# define SSL_AD_DECODE_ERROR             TLS1_AD_DECODE_ERROR
  1228	# define SSL_AD_DECRYPT_ERROR            TLS1_AD_DECRYPT_ERROR
  1229	/* fatal */
  1230	# define SSL_AD_EXPORT_RESTRICTION       TLS1_AD_EXPORT_RESTRICTION
  1231	/* fatal */
  1232	# define SSL_AD_PROTOCOL_VERSION         TLS1_AD_PROTOCOL_VERSION
  1233	/* fatal */
  1234	# define SSL_AD_INSUFFICIENT_SECURITY    TLS1_AD_INSUFFICIENT_SECURITY
  1235	/* fatal */
  1236	# define SSL_AD_INTERNAL_ERROR           TLS1_AD_INTERNAL_ERROR
  1237	# define SSL_AD_USER_CANCELLED           TLS1_AD_USER_CANCELLED
  1238	# define SSL_AD_NO_RENEGOTIATION         TLS1_AD_NO_RENEGOTIATION
  1239	# define SSL_AD_MISSING_EXTENSION        TLS13_AD_MISSING_EXTENSION
  1240	# define SSL_AD_CERTIFICATE_REQUIRED     TLS13_AD_CERTIFICATE_REQUIRED
  1241	# define SSL_AD_UNSUPPORTED_EXTENSION    TLS1_AD_UNSUPPORTED_EXTENSION
  1242	# define SSL_AD_CERTIFICATE_UNOBTAINABLE TLS1_AD_CERTIFICATE_UNOBTAINABLE
  1243	# define SSL_AD_UNRECOGNIZED_NAME        TLS1_AD_UNRECOGNIZED_NAME
  1244	# define SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE
  1245	# define SSL_AD_BAD_CERTIFICATE_HASH_VALUE TLS1_AD_BAD_CERTIFICATE_HASH_VALUE
  1246	/* fatal */
  1247	# define SSL_AD_UNKNOWN_PSK_IDENTITY     TLS1_AD_UNKNOWN_PSK_IDENTITY
  1248	/* fatal */
  1249	# define SSL_AD_INAPPROPRIATE_FALLBACK   TLS1_AD_INAPPROPRIATE_FALLBACK
  1250	# define SSL_AD_NO_APPLICATION_PROTOCOL  TLS1_AD_NO_APPLICATION_PROTOCOL
  1251	# define SSL_ERROR_NONE                  0
  1252	# define SSL_ERROR_SSL                   1
  1253	# define SSL_ERROR_WANT_READ             2
  1254	# define SSL_ERROR_WANT_WRITE            3
  1255	# define SSL_ERROR_WANT_X509_LOOKUP      4
  1256	# define SSL_ERROR_SYSCALL               5/* look at error stack/return
  1257	                                           * value/errno */
  1258	# define SSL_ERROR_ZERO_RETURN           6
  1259	# define SSL_ERROR_WANT_CONNECT          7
  1260	# define SSL_ERROR_WANT_ACCEPT           8
  1261	# define SSL_ERROR_WANT_ASYNC            9
  1262	# define SSL_ERROR_WANT_ASYNC_JOB       10
  1263	# define SSL_ERROR_WANT_CLIENT_HELLO_CB 11
  1264	# define SSL_ERROR_WANT_RETRY_VERIFY    12
  1265	
  1266	# ifndef OPENSSL_NO_DEPRECATED_3_0
  1267	#  define SSL_CTRL_SET_TMP_DH                    3
  1268	#  define SSL_CTRL_SET_TMP_ECDH                  4
  1269	#  define SSL_CTRL_SET_TMP_DH_CB                 6
  1270	# endif
  1271	
  1272	# define SSL_CTRL_GET_CLIENT_CERT_REQUEST        9
  1273	# define SSL_CTRL_GET_NUM_RENEGOTIATIONS         10
  1274	# define SSL_CTRL_CLEAR_NUM_RENEGOTIATIONS       11
  1275	# define SSL_CTRL_GET_TOTAL_RENEGOTIATIONS       12
  1276	# define SSL_CTRL_GET_FLAGS                      13
  1277	# define SSL_CTRL_EXTRA_CHAIN_CERT               14
  1278	# define SSL_CTRL_SET_MSG_CALLBACK               15
  1279	# define SSL_CTRL_SET_MSG_CALLBACK_ARG           16
  1280	/* only applies to datagram connections */
  1281	# define SSL_CTRL_SET_MTU                17
  1282	/* Stats */
  1283	# define SSL_CTRL_SESS_NUMBER                    20
  1284	# define SSL_CTRL_SESS_CONNECT                   21
  1285	# define SSL_CTRL_SESS_CONNECT_GOOD              22
  1286	# define SSL_CTRL_SESS_CONNECT_RENEGOTIATE       23
  1287	# define SSL_CTRL_SESS_ACCEPT                    24
  1288	# define SSL_CTRL_SESS_ACCEPT_GOOD               25
  1289	# define SSL_CTRL_SESS_ACCEPT_RENEGOTIATE        26
  1290	# define SSL_CTRL_SESS_HIT                       27
  1291	# define SSL_CTRL_SESS_CB_HIT                    28
  1292	# define SSL_CTRL_SESS_MISSES                    29
  1293	# define SSL_CTRL_SESS_TIMEOUTS                  30
  1294	# define SSL_CTRL_SESS_CACHE_FULL                31
  1295	# define SSL_CTRL_MODE                           33
  1296	# define SSL_CTRL_GET_READ_AHEAD                 40
  1297	# define SSL_CTRL_SET_READ_AHEAD                 41
  1298	# define SSL_CTRL_SET_SESS_CACHE_SIZE            42
  1299	# define SSL_CTRL_GET_SESS_CACHE_SIZE            43
  1300	# define SSL_CTRL_SET_SESS_CACHE_MODE            44
  1301	# define SSL_CTRL_GET_SESS_CACHE_MODE            45
  1302	# define SSL_CTRL_GET_MAX_CERT_LIST              50
  1303	# define SSL_CTRL_SET_MAX_CERT_LIST              51
  1304	# define SSL_CTRL_SET_MAX_SEND_FRAGMENT          52
  1305	/* see tls1.h for macros based on these */
  1306	# define SSL_CTRL_SET_TLSEXT_SERVERNAME_CB       53
  1307	# define SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG      54
  1308	# define SSL_CTRL_SET_TLSEXT_HOSTNAME            55
  1309	# define SSL_CTRL_SET_TLSEXT_DEBUG_CB            56
  1310	# define SSL_CTRL_SET_TLSEXT_DEBUG_ARG           57
  1311	# define SSL_CTRL_GET_TLSEXT_TICKET_KEYS         58
  1312	# define SSL_CTRL_SET_TLSEXT_TICKET_KEYS         59
  1313	/*# define SSL_CTRL_SET_TLSEXT_OPAQUE_PRF_INPUT    60 */
  1314	/*# define SSL_CTRL_SET_TLSEXT_OPAQUE_PRF_INPUT_CB 61 */
  1315	/*# define SSL_CTRL_SET_TLSEXT_OPAQUE_PRF_INPUT_CB_ARG 62 */
  1316	# define SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB       63
  1317	# define SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB_ARG   64
  1318	# define SSL_CTRL_SET_TLSEXT_STATUS_REQ_TYPE     65
  1319	# define SSL_CTRL_GET_TLSEXT_STATUS_REQ_EXTS     66
  1320	# define SSL_CTRL_SET_TLSEXT_STATUS_REQ_EXTS     67
  1321	# define SSL_CTRL_GET_TLSEXT_STATUS_REQ_IDS      68
  1322	# define SSL_CTRL_SET_TLSEXT_STATUS_REQ_IDS      69
  1323	# define SSL_CTRL_GET_TLSEXT_STATUS_REQ_OCSP_RESP        70
  1324	# define SSL_CTRL_SET_TLSEXT_STATUS_REQ_OCSP_RESP        71
  1325	# ifndef OPENSSL_NO_DEPRECATED_3_0
  1326	#  define SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB      72
  1327	# endif
  1328	# define SSL_CTRL_SET_TLS_EXT_SRP_USERNAME_CB    75
  1329	# define SSL_CTRL_SET_SRP_VERIFY_PARAM_CB                76
  1330	# define SSL_CTRL_SET_SRP_GIVE_CLIENT_PWD_CB             77
  1331	# define SSL_CTRL_SET_SRP_ARG            78
  1332	# define SSL_CTRL_SET_TLS_EXT_SRP_USERNAME               79
  1333	# define SSL_CTRL_SET_TLS_EXT_SRP_STRENGTH               80
  1334	# define SSL_CTRL_SET_TLS_EXT_SRP_PASSWORD               81
  1335	# define DTLS_CTRL_GET_TIMEOUT           73
  1336	# define DTLS_CTRL_HANDLE_TIMEOUT        74
  1337	# define SSL_CTRL_GET_RI_SUPPORT                 76
  1338	# define SSL_CTRL_CLEAR_MODE                     78
  1339	# define SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB      79
  1340	# define SSL_CTRL_GET_EXTRA_CHAIN_CERTS          82
  1341	# define SSL_CTRL_CLEAR_EXTRA_CHAIN_CERTS        83
  1342	# define SSL_CTRL_CHAIN                          88
  1343	# define SSL_CTRL_CHAIN_CERT                     89
  1344	# define SSL_CTRL_GET_GROUPS                     90
  1345	# define SSL_CTRL_SET_GROUPS                     91
  1346	# define SSL_CTRL_SET_GROUPS_LIST                92
  1347	# define SSL_CTRL_GET_SHARED_GROUP               93
  1348	# define SSL_CTRL_SET_SIGALGS                    97
  1349	# define SSL_CTRL_SET_SIGALGS_LIST               98
  1350	# define SSL_CTRL_CERT_FLAGS                     99
  1351	# define SSL_CTRL_CLEAR_CERT_FLAGS               100
  1352	# define SSL_CTRL_SET_CLIENT_SIGALGS             101
  1353	# define SSL_CTRL_SET_CLIENT_SIGALGS_LIST        102
  1354	# define SSL_CTRL_GET_CLIENT_CERT_TYPES          103
  1355	# define SSL_CTRL_SET_CLIENT_CERT_TYPES          104
  1356	# define SSL_CTRL_BUILD_CERT_CHAIN               105
  1357	# define SSL_CTRL_SET_VERIFY_CERT_STORE          106
  1358	# define SSL_CTRL_SET_CHAIN_CERT_STORE           107
  1359	# define SSL_CTRL_GET_PEER_SIGNATURE_NID         108
  1360	# define SSL_CTRL_GET_PEER_TMP_KEY               109
  1361	# define SSL_CTRL_GET_RAW_CIPHERLIST             110
  1362	# define SSL_CTRL_GET_EC_POINT_FORMATS           111
  1363	# define SSL_CTRL_GET_CHAIN_CERTS                115
  1364	# define SSL_CTRL_SELECT_CURRENT_CERT            116
  1365	# define SSL_CTRL_SET_CURRENT_CERT               117
  1366	# define SSL_CTRL_SET_DH_AUTO                    118
  1367	# define DTLS_CTRL_SET_LINK_MTU                  120
  1368	# define DTLS_CTRL_GET_LINK_MIN_MTU              121
  1369	# define SSL_CTRL_GET_EXTMS_SUPPORT              122
  1370	# define SSL_CTRL_SET_MIN_PROTO_VERSION          123
  1371	# define SSL_CTRL_SET_MAX_PROTO_VERSION          124
  1372	# define SSL_CTRL_SET_SPLIT_SEND_FRAGMENT        125
  1373	# define SSL_CTRL_SET_MAX_PIPELINES              126
  1374	# define SSL_CTRL_GET_TLSEXT_STATUS_REQ_TYPE     127
  1375	# define SSL_CTRL_GET_TLSEXT_STATUS_REQ_CB       128
  1376	# define SSL_CTRL_GET_TLSEXT_STATUS_REQ_CB_ARG   129
  1377	# define SSL_CTRL_GET_MIN_PROTO_VERSION          130
  1378	# define SSL_CTRL_GET_MAX_PROTO_VERSION          131
  1379	# define SSL_CTRL_GET_SIGNATURE_NID              132
  1380	# define SSL_CTRL_GET_TMP_KEY                    133
  1381	# define SSL_CTRL_GET_NEGOTIATED_GROUP           134
  1382	# define SSL_CTRL_GET_IANA_GROUPS                135
  1383	# define SSL_CTRL_SET_RETRY_VERIFY               136
  1384	# define SSL_CTRL_GET_VERIFY_CERT_STORE          137
  1385	# define SSL_CTRL_GET_CHAIN_CERT_STORE           138
  1386	# define SSL_CTRL_GET0_IMPLEMENTED_GROUPS        139
  1387	# define SSL_CTRL_GET_SIGNATURE_NAME             140
  1388	# define SSL_CTRL_GET_PEER_SIGNATURE_NAME        141
  1389	# define SSL_CERT_SET_FIRST                      1
  1390	# define SSL_CERT_SET_NEXT                       2
  1391	# define SSL_CERT_SET_SERVER                     3
  1392	# define DTLSv1_get_timeout(ssl, arg) \
  1393	        SSL_ctrl(ssl,DTLS_CTRL_GET_TIMEOUT,0, (void *)(arg))
  1394	# define DTLSv1_handle_timeout(ssl) \
  1395	        SSL_ctrl(ssl,DTLS_CTRL_HANDLE_TIMEOUT,0, NULL)
  1396	# define SSL_num_renegotiations(ssl) \
  1397	        SSL_ctrl((ssl),SSL_CTRL_GET_NUM_RENEGOTIATIONS,0,NULL)
  1398	# define SSL_clear_num_renegotiations(ssl) \
  1399	        SSL_ctrl((ssl),SSL_CTRL_CLEAR_NUM_RENEGOTIATIONS,0,NULL)
  1400	# define SSL_total_renegotiations(ssl) \
  1401	        SSL_ctrl((ssl),SSL_CTRL_GET_TOTAL_RENEGOTIATIONS,0,NULL)
  1402	# ifndef OPENSSL_NO_DEPRECATED_3_0
  1403	#  define SSL_CTX_set_tmp_dh(ctx,dh) \
  1404	        SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_DH,0,(char *)(dh))
  1405	# endif
  1406	# define SSL_CTX_set_dh_auto(ctx, onoff) \
  1407	        SSL_CTX_ctrl(ctx,SSL_CTRL_SET_DH_AUTO,onoff,NULL)
  1408	# define SSL_set_dh_auto(s, onoff) \
  1409	        SSL_ctrl(s,SSL_CTRL_SET_DH_AUTO,onoff,NULL)
  1410	# ifndef OPENSSL_NO_DEPRECATED_3_0
  1411	#  define SSL_set_tmp_dh(ssl,dh) \
  1412	        SSL_ctrl(ssl,SSL_CTRL_SET_TMP_DH,0,(char *)(dh))
  1413	# endif
  1414	# ifndef OPENSSL_NO_DEPRECATED_3_0
  1415	#  define SSL_CTX_set_tmp_ecdh(ctx,ecdh) \
  1416	        SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH,0,(char *)(ecdh))
  1417	#  define SSL_set_tmp_ecdh(ssl,ecdh) \
  1418	        SSL_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH,0,(char *)(ecdh))
  1419	# endif
  1420	# define SSL_CTX_add_extra_chain_cert(ctx,x509) \
  1421	        SSL_CTX_ctrl(ctx,SSL_CTRL_EXTRA_CHAIN_CERT,0,(char *)(x509))
  1422	# define SSL_CTX_get_extra_chain_certs(ctx,px509) \
  1423	        SSL_CTX_ctrl(ctx,SSL_CTRL_GET_EXTRA_CHAIN_CERTS,0,px509)
  1424	# define SSL_CTX_get_extra_chain_certs_only(ctx,px509) \
  1425	        SSL_CTX_ctrl(ctx,SSL_CTRL_GET_EXTRA_CHAIN_CERTS,1,px509)
  1426	# define SSL_CTX_clear_extra_chain_certs(ctx) \
  1427	        SSL_CTX_ctrl(ctx,SSL_CTRL_CLEAR_EXTRA_CHAIN_CERTS,0,NULL)
  1428	# define SSL_CTX_set0_chain(ctx,sk) \
  1429	        SSL_CTX_ctrl(ctx,SSL_CTRL_CHAIN,0,(char *)(sk))
  1430	# define SSL_CTX_set1_chain(ctx,sk) \
  1431	        SSL_CTX_ctrl(ctx,SSL_CTRL_CHAIN,1,(char *)(sk))
  1432	# define SSL_CTX_add0_chain_cert(ctx,x509) \
  1433	        SSL_CTX_ctrl(ctx,SSL_CTRL_CHAIN_CERT,0,(char *)(x509))
  1434	# define SSL_CTX_add1_chain_cert(ctx,x509) \
  1435	        SSL_CTX_ctrl(ctx,SSL_CTRL_CHAIN_CERT,1,(char *)(x509))
  1436	# define SSL_CTX_get0_chain_certs(ctx,px509) \
  1437	        SSL_CTX_ctrl(ctx,SSL_CTRL_GET_CHAIN_CERTS,0,px509)
  1438	# define SSL_CTX_clear_chain_certs(ctx) \
  1439	        SSL_CTX_set0_chain(ctx,NULL)
  1440	# define SSL_CTX_build_cert_chain(ctx, flags) \
  1441	        SSL_CTX_ctrl(ctx,SSL_CTRL_BUILD_CERT_CHAIN, flags, NULL)
  1442	# define SSL_CTX_select_current_cert(ctx,x509) \
  1443	        SSL_CTX_ctrl(ctx,SSL_CTRL_SELECT_CURRENT_CERT,0,(char *)(x509))
  1444	# define SSL_CTX_set_current_cert(ctx, op) \
  1445	        SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CURRENT_CERT, op, NULL)
  1446	# define SSL_CTX_set0_verify_cert_store(ctx,st) \
  1447	        SSL_CTX_ctrl(ctx,SSL_CTRL_SET_VERIFY_CERT_STORE,0,(char *)(st))
  1448	# define SSL_CTX_set1_verify_cert_store(ctx,st) \
  1449	        SSL_CTX_ctrl(ctx,SSL_CTRL_SET_VERIFY_CERT_STORE,1,(char *)(st))
  1450	# define SSL_CTX_get0_verify_cert_store(ctx,st) \
  1451	        SSL_CTX_ctrl(ctx,SSL_CTRL_GET_VERIFY_CERT_STORE,0,(char *)(st))
  1452	# define SSL_CTX_set0_chain_cert_store(ctx,st) \
  1453	        SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CHAIN_CERT_STORE,0,(char *)(st))
  1454	# define SSL_CTX_set1_chain_cert_store(ctx,st) \
  1455	        SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CHAIN_CERT_STORE,1,(char *)(st))
  1456	# define SSL_CTX_get0_chain_cert_store(ctx,st) \
  1457	        SSL_CTX_ctrl(ctx,SSL_CTRL_GET_CHAIN_CERT_STORE,0,(char *)(st))
  1458	# define SSL_set0_chain(s,sk) \
  1459	        SSL_ctrl(s,SSL_CTRL_CHAIN,0,(char *)(sk))
  1460	# define SSL_set1_chain(s,sk) \
  1461	        SSL_ctrl(s,SSL_CTRL_CHAIN,1,(char *)(sk))
  1462	# define SSL_add0_chain_cert(s,x509) \
  1463	        SSL_ctrl(s,SSL_CTRL_CHAIN_CERT,0,(char *)(x509))
  1464	# define SSL_add1_chain_cert(s,x509) \
  1465	        SSL_ctrl(s,SSL_CTRL_CHAIN_CERT,1,(char *)(x509))
  1466	# define SSL_get0_chain_certs(s,px509) \
  1467	        SSL_ctrl(s,SSL_CTRL_GET_CHAIN_CERTS,0,px509)
  1468	# define SSL_clear_chain_certs(s) \
  1469	        SSL_set0_chain(s,NULL)
  1470	# define SSL_build_cert_chain(s, flags) \
  1471	        SSL_ctrl(s,SSL_CTRL_BUILD_CERT_CHAIN, flags, NULL)
  1472	# define SSL_select_current_cert(s,x509) \
  1473	        SSL_ctrl(s,SSL_CTRL_SELECT_CURRENT_CERT,0,(char *)(x509))
  1474	# define SSL_set_current_cert(s,op) \
  1475	        SSL_ctrl(s,SSL_CTRL_SET_CURRENT_CERT, op, NULL)
  1476	# define SSL_set0_verify_cert_store(s,st) \
  1477	        SSL_ctrl(s,SSL_CTRL_SET_VERIFY_CERT_STORE,0,(char *)(st))
  1478	# define SSL_set1_verify_cert_store(s,st) \
  1479	        SSL_ctrl(s,SSL_CTRL_SET_VERIFY_CERT_STORE,1,(char *)(st))
  1480	#define SSL_get0_verify_cert_store(s,st) \
  1481	        SSL_ctrl(s,SSL_CTRL_GET_VERIFY_CERT_STORE,0,(char *)(st))
  1482	# define SSL_set0_chain_cert_store(s,st) \
  1483	        SSL_ctrl(s,SSL_CTRL_SET_CHAIN_CERT_STORE,0,(char *)(st))
  1484	# define SSL_set1_chain_cert_store(s,st) \
  1485	        SSL_ctrl(s,SSL_CTRL_SET_CHAIN_CERT_STORE,1,(char *)(st))
  1486	#define SSL_get0_chain_cert_store(s,st) \
  1487	        SSL_ctrl(s,SSL_CTRL_GET_CHAIN_CERT_STORE,0,(char *)(st))
  1488	
  1489	# define SSL_get1_groups(s, glist) \
  1490	        SSL_ctrl(s,SSL_CTRL_GET_GROUPS,0,(int*)(glist))
  1491	# define SSL_get0_iana_groups(s, plst) \
  1492	        SSL_ctrl(s,SSL_CTRL_GET_IANA_GROUPS,0,(uint16_t **)(plst))
  1493	# define SSL_CTX_set1_groups(ctx, glist, glistlen) \
  1494	        SSL_CTX_ctrl(ctx,SSL_CTRL_SET_GROUPS,glistlen,(int *)(glist))
  1495	# define SSL_CTX_set1_groups_list(ctx, s) \
  1496	        SSL_CTX_ctrl(ctx,SSL_CTRL_SET_GROUPS_LIST,0,(char *)(s))
  1497	# define SSL_CTX_get0_implemented_groups(ctx, all, out) \
  1498	        SSL_CTX_ctrl(ctx,SSL_CTRL_GET0_IMPLEMENTED_GROUPS, all, \
  1499	        (STACK_OF(OPENSSL_CSTRING) *)(out))
  1500	# define SSL_set1_groups(s, glist, glistlen) \
  1501	        SSL_ctrl(s,SSL_CTRL_SET_GROUPS,glistlen,(char *)(glist))
  1502	# define SSL_set1_groups_list(s, str) \
  1503	        SSL_ctrl(s,SSL_CTRL_SET_GROUPS_LIST,0,(char *)(str))
  1504	# define SSL_get_shared_group(s, n) \
  1505	        SSL_ctrl(s,SSL_CTRL_GET_SHARED_GROUP,n,NULL)
  1506	# define SSL_get_negotiated_group(s) \
  1507	        SSL_ctrl(s,SSL_CTRL_GET_NEGOTIATED_GROUP,0,NULL)
  1508	# define SSL_CTX_set1_sigalgs(ctx, slist, slistlen) \
  1509	        SSL_CTX_ctrl(ctx,SSL_CTRL_SET_SIGALGS,slistlen,(int *)(slist))
  1510	# define SSL_CTX_set1_sigalgs_list(ctx, s) \
  1511	        SSL_CTX_ctrl(ctx,SSL_CTRL_SET_SIGALGS_LIST,0,(char *)(s))
  1512	# define SSL_set1_sigalgs(s, slist, slistlen) \
  1513	        SSL_ctrl(s,SSL_CTRL_SET_SIGALGS,slistlen,(int *)(slist))
  1514	# define SSL_set1_sigalgs_list(s, str) \
  1515	        SSL_ctrl(s,SSL_CTRL_SET_SIGALGS_LIST,0,(char *)(str))
  1516	# define SSL_CTX_set1_client_sigalgs(ctx, slist, slistlen) \
  1517	        SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CLIENT_SIGALGS,slistlen,(int *)(slist))
  1518	# define SSL_CTX_set1_client_sigalgs_list(ctx, s) \
  1519	        SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CLIENT_SIGALGS_LIST,0,(char *)(s))
  1520	# define SSL_set1_client_sigalgs(s, slist, slistlen) \
  1521	        SSL_ctrl(s,SSL_CTRL_SET_CLIENT_SIGALGS,slistlen,(int *)(slist))
  1522	# define SSL_set1_client_sigalgs_list(s, str) \
  1523	        SSL_ctrl(s,SSL_CTRL_SET_CLIENT_SIGALGS_LIST,0,(char *)(str))
  1524	# define SSL_get0_certificate_types(s, clist) \
  1525	        SSL_ctrl(s, SSL_CTRL_GET_CLIENT_CERT_TYPES, 0, (char *)(clist))
  1526	# define SSL_CTX_set1_client_certificate_types(ctx, clist, clistlen) \
  1527	        SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CLIENT_CERT_TYPES,clistlen, \
  1528	                     (char *)(clist))
  1529	# define SSL_set1_client_certificate_types(s, clist, clistlen) \
  1530	        SSL_ctrl(s,SSL_CTRL_SET_CLIENT_CERT_TYPES,clistlen,(char *)(clist))
  1531	# define SSL_get0_signature_name(s, str) \
  1532	        SSL_ctrl(s,SSL_CTRL_GET_SIGNATURE_NAME,0,(1?(str):(const char **)NULL))
  1533	# define SSL_get_signature_nid(s, pn) \
  1534	        SSL_ctrl(s,SSL_CTRL_GET_SIGNATURE_NID,0,pn)
  1535	# define SSL_get0_peer_signature_name(s, str) \
  1536	        SSL_ctrl(s,SSL_CTRL_GET_PEER_SIGNATURE_NAME,0,(1?(str):(const char **)NULL))
  1537	# define SSL_get_peer_signature_nid(s, pn) \
  1538	        SSL_ctrl(s,SSL_CTRL_GET_PEER_SIGNATURE_NID,0,pn)
  1539	# define SSL_get_peer_tmp_key(s, pk) \
  1540	        SSL_ctrl(s,SSL_CTRL_GET_PEER_TMP_KEY,0,pk)
  1541	# define SSL_get_tmp_key(s, pk) \
  1542	        SSL_ctrl(s,SSL_CTRL_GET_TMP_KEY,0,pk)
  1543	# define SSL_get0_raw_cipherlist(s, plst) \
  1544	        SSL_ctrl(s,SSL_CTRL_GET_RAW_CIPHERLIST,0,plst)
  1545	# define SSL_get0_ec_point_formats(s, plst) \
  1546	        SSL_ctrl(s,SSL_CTRL_GET_EC_POINT_FORMATS,0,plst)
  1547	# define SSL_CTX_set_min_proto_version(ctx, version) \
  1548	        SSL_CTX_ctrl(ctx, SSL_CTRL_SET_MIN_PROTO_VERSION, version, NULL)
  1549	# define SSL_CTX_set_max_proto_version(ctx, version) \
  1550	        SSL_CTX_ctrl(ctx, SSL_CTRL_SET_MAX_PROTO_VERSION, version, NULL)
  1551	# define SSL_CTX_get_min_proto_version(ctx) \
  1552	        SSL_CTX_ctrl(ctx, SSL_CTRL_GET_MIN_PROTO_VERSION, 0, NULL)
  1553	# define SSL_CTX_get_max_proto_version(ctx) \
  1554	        SSL_CTX_ctrl(ctx, SSL_CTRL_GET_MAX_PROTO_VERSION, 0, NULL)
  1555	# define SSL_set_min_proto_version(s, version) \
  1556	        SSL_ctrl(s, SSL_CTRL_SET_MIN_PROTO_VERSION, version, NULL)
  1557	# define SSL_set_max_proto_version(s, version) \
  1558	        SSL_ctrl(s, SSL_CTRL_SET_MAX_PROTO_VERSION, version, NULL)
  1559	# define SSL_get_min_proto_version(s) \
  1560	        SSL_ctrl(s, SSL_CTRL_GET_MIN_PROTO_VERSION, 0, NULL)
  1561	# define SSL_get_max_proto_version(s) \
  1562	        SSL_ctrl(s, SSL_CTRL_GET_MAX_PROTO_VERSION, 0, NULL)
  1563	
  1564	const char *SSL_get0_group_name(SSL *s);
  1565	const char *SSL_group_to_name(SSL *s, int id);
  1566	
  1567	/* Backwards compatibility, original 1.1.0 names */
  1568	# define SSL_CTRL_GET_SERVER_TMP_KEY \
  1569	         SSL_CTRL_GET_PEER_TMP_KEY
  1570	# define SSL_get_server_tmp_key(s, pk) \
  1571	         SSL_get_peer_tmp_key(s, pk)
  1572	
  1573	int SSL_set0_tmp_dh_pkey(SSL *s, EVP_PKEY *dhpkey);
  1574	int SSL_CTX_set0_tmp_dh_pkey(SSL_CTX *ctx, EVP_PKEY *dhpkey);
  1575	
  1576	/*
  1577	 * The following symbol names are old and obsolete. They are kept
  1578	 * for compatibility reasons only and should not be used anymore.
  1579	 */
  1580	# define SSL_CTRL_GET_CURVES           SSL_CTRL_GET_GROUPS
  1581	# define SSL_CTRL_SET_CURVES           SSL_CTRL_SET_GROUPS
  1582	# define SSL_CTRL_SET_CURVES_LIST      SSL_CTRL_SET_GROUPS_LIST
  1583	# define SSL_CTRL_GET_SHARED_CURVE     SSL_CTRL_GET_SHARED_GROUP
  1584	
  1585	# define SSL_get1_curves               SSL_get1_groups
  1586	# define SSL_CTX_set1_curves           SSL_CTX_set1_groups
  1587	# define SSL_CTX_set1_curves_list      SSL_CTX_set1_groups_list
  1588	# define SSL_set1_curves               SSL_set1_groups
  1589	# define SSL_set1_curves_list          SSL_set1_groups_list
  1590	# define SSL_get_shared_curve          SSL_get_shared_group
  1591	
  1592	
  1593	# ifndef OPENSSL_NO_DEPRECATED_1_1_0
  1594	/* Provide some compatibility macros for removed functionality. */
  1595	#  define SSL_CTX_need_tmp_RSA(ctx)                0
  1596	#  define SSL_CTX_set_tmp_rsa(ctx,rsa)             1
  1597	#  define SSL_need_tmp_RSA(ssl)                    0
  1598	#  define SSL_set_tmp_rsa(ssl,rsa)                 1
  1599	#  define SSL_CTX_set_ecdh_auto(dummy, onoff)      ((onoff) != 0)
  1600	#  define SSL_set_ecdh_auto(dummy, onoff)          ((onoff) != 0)
  1601	/*
  1602	 * We "pretend" to call the callback to avoid warnings about unused static
  1603	 * functions.
  1604	 */
  1605	#  define SSL_CTX_set_tmp_rsa_callback(ctx, cb)    while(0) (cb)(NULL, 0, 0)
  1606	#  define SSL_set_tmp_rsa_callback(ssl, cb)        while(0) (cb)(NULL, 0, 0)
  1607	# endif
  1608	__owur const BIO_METHOD *BIO_f_ssl(void);
  1609	__owur BIO *BIO_new_ssl(SSL_CTX *ctx, int client);
  1610	__owur BIO *BIO_new_ssl_connect(SSL_CTX *ctx);
  1611	__owur BIO *BIO_new_buffer_ssl_connect(SSL_CTX *ctx);
  1612	__owur int BIO_ssl_copy_session_id(BIO *to, BIO *from);
  1613	void BIO_ssl_shutdown(BIO *ssl_bio);
  1614	
  1615	__owur int SSL_CTX_set_cipher_list(SSL_CTX *, const char *str);
  1616	__owur SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth);
  1617	__owur SSL_CTX *SSL_CTX_new_ex(OSSL_LIB_CTX *libctx, const char *propq,
  1618	                               const SSL_METHOD *meth);
  1619	int SSL_CTX_up_ref(SSL_CTX *ctx);
  1620	void SSL_CTX_free(SSL_CTX *);
  1621	__owur long SSL_CTX_set_timeout(SSL_CTX *ctx, long t);
  1622	__owur long SSL_CTX_get_timeout(const SSL_CTX *ctx);
  1623	__owur X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *);
  1624	void SSL_CTX_set_cert_store(SSL_CTX *, X509_STORE *);
  1625	void SSL_CTX_set1_cert_store(SSL_CTX *, X509_STORE *);
  1626	__owur int SSL_want(const SSL *s);
  1627	__owur int SSL_clear(SSL *s);
  1628	
  1629	#ifndef OPENSSL_NO_DEPRECATED_3_4
  1630	OSSL_DEPRECATEDIN_3_4_FOR("not Y2038-safe, replace with SSL_CTX_flush_sessions_ex()")
  1631	void SSL_CTX_flush_sessions(SSL_CTX *ctx, long tm);
  1632	#endif
  1633	void SSL_CTX_flush_sessions_ex(SSL_CTX *ctx, time_t tm);
  1634	
  1635	__owur const SSL_CIPHER *SSL_get_current_cipher(const SSL *s);
  1636	__owur const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s);
  1637	__owur int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits);
  1638	__owur const char *SSL_CIPHER_get_version(const SSL_CIPHER *c);
  1639	__owur const char *SSL_CIPHER_get_name(const SSL_CIPHER *c);
  1640	__owur const char *SSL_CIPHER_standard_name(const SSL_CIPHER *c);
  1641	__owur const char *OPENSSL_cipher_name(const char *rfc_name);
  1642	__owur uint32_t SSL_CIPHER_get_id(const SSL_CIPHER *c);
  1643	__owur uint16_t SSL_CIPHER_get_protocol_id(const SSL_CIPHER *c);
  1644	__owur int SSL_CIPHER_get_kx_nid(const SSL_CIPHER *c);
  1645	__owur int SSL_CIPHER_get_auth_nid(const SSL_CIPHER *c);
  1646	__owur const EVP_MD *SSL_CIPHER_get_handshake_digest(const SSL_CIPHER *c);
  1647	__owur int SSL_CIPHER_is_aead(const SSL_CIPHER *c);
  1648	
  1649	__owur int SSL_get_fd(const SSL *s);
  1650	__owur int SSL_get_rfd(const SSL *s);
  1651	__owur int SSL_get_wfd(const SSL *s);
  1652	__owur const char *SSL_get_cipher_list(const SSL *s, int n);
  1653	__owur char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size);
  1654	__owur int SSL_get_read_ahead(const SSL *s);
  1655	__owur int SSL_pending(const SSL *s);
  1656	__owur int SSL_has_pending(const SSL *s);
  1657	# ifndef OPENSSL_NO_SOCK
  1658	__owur int SSL_set_fd(SSL *s, int fd);
  1659	__owur int SSL_set_rfd(SSL *s, int fd);
  1660	__owur int SSL_set_wfd(SSL *s, int fd);
  1661	# endif
  1662	void SSL_set0_rbio(SSL *s, BIO *rbio);
  1663	void SSL_set0_wbio(SSL *s, BIO *wbio);
  1664	void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio);
  1665	__owur BIO *SSL_get_rbio(const SSL *s);
  1666	__owur BIO *SSL_get_wbio(const SSL *s);
  1667	__owur int SSL_set_cipher_list(SSL *s, const char *str);
  1668	__owur int SSL_CTX_set_ciphersuites(SSL_CTX *ctx, const char *str);
  1669	__owur int SSL_set_ciphersuites(SSL *s, const char *str);
  1670	void SSL_set_read_ahead(SSL *s, int yes);
  1671	__owur int SSL_get_verify_mode(const SSL *s);
  1672	__owur int SSL_get_verify_depth(const SSL *s);
  1673	__owur SSL_verify_cb SSL_get_verify_callback(const SSL *s);
  1674	void SSL_set_verify(SSL *s, int mode, SSL_verify_cb callback);
  1675	void SSL_set_verify_depth(SSL *s, int depth);
  1676	void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg);
  1677	# ifndef OPENSSL_NO_DEPRECATED_3_0
  1678	OSSL_DEPRECATEDIN_3_0 __owur int SSL_use_RSAPrivateKey(SSL *ssl, RSA *rsa);
  1679	OSSL_DEPRECATEDIN_3_0
  1680	__owur int SSL_use_RSAPrivateKey_ASN1(SSL *ssl,
  1681	                                      const unsigned char *d, long len);
  1682	# endif
  1683	__owur int SSL_use_PrivateKey(SSL *ssl, EVP_PKEY *pkey);
  1684	__owur int SSL_use_PrivateKey_ASN1(int pk, SSL *ssl, const unsigned char *d,
  1685	                                   long len);
  1686	__owur int SSL_use_certificate(SSL *ssl, X509 *x);
  1687	__owur int SSL_use_certificate_ASN1(SSL *ssl, const unsigned char *d, int len);
  1688	__owur int SSL_use_cert_and_key(SSL *ssl, X509 *x509, EVP_PKEY *privatekey,
  1689	                                STACK_OF(X509) *chain, int override);
  1690	
  1691	
  1692	/* serverinfo file format versions */
  1693	# define SSL_SERVERINFOV1   1
  1694	# define SSL_SERVERINFOV2   2
  1695	
  1696	/* Set serverinfo data for the current active cert. */
  1697	__owur int SSL_CTX_use_serverinfo(SSL_CTX *ctx, const unsigned char *serverinfo,
  1698	                                  size_t serverinfo_length);
  1699	__owur int SSL_CTX_use_serverinfo_ex(SSL_CTX *ctx, unsigned int version,
  1700	                                     const unsigned char *serverinfo,
  1701	                                     size_t serverinfo_length);
  1702	__owur int SSL_CTX_use_serverinfo_file(SSL_CTX *ctx, const char *file);
  1703	
  1704	#ifndef OPENSSL_NO_DEPRECATED_3_0
  1705	OSSL_DEPRECATEDIN_3_0
  1706	__owur int SSL_use_RSAPrivateKey_file(SSL *ssl, const char *file, int type);
  1707	#endif
  1708	
  1709	__owur int SSL_use_PrivateKey_file(SSL *ssl, const char *file, int type);
  1710	__owur int SSL_use_certificate_file(SSL *ssl, const char *file, int type);
  1711	
  1712	#ifndef OPENSSL_NO_DEPRECATED_3_0
  1713	OSSL_DEPRECATEDIN_3_0
  1714	__owur int SSL_CTX_use_RSAPrivateKey_file(SSL_CTX *ctx, const char *file,
  1715	                                          int type);
  1716	#endif
  1717	__owur int SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char *file,
  1718	                                       int type);
  1719	__owur int SSL_CTX_use_certificate_file(SSL_CTX *ctx, const char *file,
  1720	                                        int type);
  1721	/* PEM type */
  1722	__owur int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file);
  1723	__owur int SSL_use_certificate_chain_file(SSL *ssl, const char *file);
  1724	__owur STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file);
  1725	__owur STACK_OF(X509_NAME)
  1726	*SSL_load_client_CA_file_ex(const char *file, OSSL_LIB_CTX *libctx,
  1727	                            const char *propq);
  1728	__owur int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stackCAs,
  1729	                                               const char *file);
  1730	int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stackCAs,
  1731	                                       const char *dir);
  1732	int SSL_add_store_cert_subjects_to_stack(STACK_OF(X509_NAME) *stackCAs,
  1733	                                       const char *uri);
  1734	
  1735	# ifndef OPENSSL_NO_DEPRECATED_1_1_0
  1736	#  define SSL_load_error_strings() \
  1737	    OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS \
  1738	                     | OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL)
  1739	# endif
  1740	
  1741	__owur const char *SSL_state_string(const SSL *s);
  1742	__owur const char *SSL_rstate_string(const SSL *s);
  1743	__owur const char *SSL_state_string_long(const SSL *s);
  1744	__owur const char *SSL_rstate_string_long(const SSL *s);
  1745	
  1746	#ifndef OPENSSL_NO_DEPRECATED_3_4
  1747	OSSL_DEPRECATEDIN_3_4_FOR("not Y2038-safe, replace with SSL_SESSION_get_time_ex()")
  1748	__owur long SSL_SESSION_get_time(const SSL_SESSION *s);
  1749	OSSL_DEPRECATEDIN_3_4_FOR("not Y2038-safe, replace with SSL_SESSION_set_time_ex()")
  1750	__owur long SSL_SESSION_set_time(SSL_SESSION *s, long t);
  1751	#endif
  1752	__owur long SSL_SESSION_get_timeout(const SSL_SESSION *s);
  1753	__owur long SSL_SESSION_set_timeout(SSL_SESSION *s, long t);
  1754	__owur int SSL_SESSION_get_protocol_version(const SSL_SESSION *s);
  1755	__owur int SSL_SESSION_set_protocol_version(SSL_SESSION *s, int version);
  1756	
  1757	__owur time_t SSL_SESSION_get_time_ex(const SSL_SESSION *s);
  1758	__owur time_t SSL_SESSION_set_time_ex(SSL_SESSION *s, time_t t);
  1759	
  1760	__owur const char *SSL_SESSION_get0_hostname(const SSL_SESSION *s);
  1761	__owur int SSL_SESSION_set1_hostname(SSL_SESSION *s, const char *hostname);
  1762	void SSL_SESSION_get0_alpn_selected(const SSL_SESSION *s,
  1763	                                    const unsigned char **alpn,
  1764	                                    size_t *len);
  1765	__owur int SSL_SESSION_set1_alpn_selected(SSL_SESSION *s,
  1766	                                          const unsigned char *alpn,
  1767	                                          size_t len);
  1768	__owur const SSL_CIPHER *SSL_SESSION_get0_cipher(const SSL_SESSION *s);
  1769	__owur int SSL_SESSION_set_cipher(SSL_SESSION *s, const SSL_CIPHER *cipher);
  1770	__owur int SSL_SESSION_has_ticket(const SSL_SESSION *s);
  1771	__owur unsigned long SSL_SESSION_get_ticket_lifetime_hint(const SSL_SESSION *s);
  1772	void SSL_SESSION_get0_ticket(const SSL_SESSION *s, const unsigned char **tick,
  1773	                             size_t *len);
  1774	__owur uint32_t SSL_SESSION_get_max_early_data(const SSL_SESSION *s);
  1775	__owur int SSL_SESSION_set_max_early_data(SSL_SESSION *s,
  1776	                                          uint32_t max_early_data);
  1777	__owur int SSL_copy_session_id(SSL *to, const SSL *from);
  1778	__owur X509 *SSL_SESSION_get0_peer(SSL_SESSION *s);
  1779	__owur int SSL_SESSION_set1_id_context(SSL_SESSION *s,
  1780	                                       const unsigned char *sid_ctx,
  1781	                                       unsigned int sid_ctx_len);
  1782	__owur int SSL_SESSION_set1_id(SSL_SESSION *s, const unsigned char *sid,
  1783	                               unsigned int sid_len);
  1784	__owur int SSL_SESSION_is_resumable(const SSL_SESSION *s);
  1785	
  1786	__owur SSL_SESSION *SSL_SESSION_new(void);
  1787	__owur SSL_SESSION *SSL_SESSION_dup(const SSL_SESSION *src);
  1788	const unsigned char *SSL_SESSION_get_id(const SSL_SESSION *s,
  1789	                                        unsigned int *len);
  1790	const unsigned char *SSL_SESSION_get0_id_context(const SSL_SESSION *s,
  1791	                                                 unsigned int *len);
  1792	__owur unsigned int SSL_SESSION_get_compress_id(const SSL_SESSION *s);
  1793	# ifndef OPENSSL_NO_STDIO
  1794	int SSL_SESSION_print_fp(FILE *fp, const SSL_SESSION *ses);
  1795	# endif
  1796	int SSL_SESSION_print(BIO *fp, const SSL_SESSION *ses);
  1797	int SSL_SESSION_print_keylog(BIO *bp, const SSL_SESSION *x);
  1798	int SSL_SESSION_up_ref(SSL_SESSION *ses);
  1799	void SSL_SESSION_free(SSL_SESSION *ses);
  1800	__owur int i2d_SSL_SESSION(const SSL_SESSION *in, unsigned char **pp);
  1801	__owur int SSL_set_session(SSL *to, SSL_SESSION *session);
  1802	int SSL_CTX_add_session(SSL_CTX *ctx, SSL_SESSION *session);
  1803	int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *session);
  1804	__owur int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb);
  1805	__owur int SSL_set_generate_session_id(SSL *s, GEN_SESSION_CB cb);
  1806	__owur int SSL_has_matching_session_id(const SSL *s,
  1807	                                       const unsigned char *id,
  1808	                                       unsigned int id_len);
  1809	SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const unsigned char **pp,
  1810	                             long length);
  1811	SSL_SESSION *d2i_SSL_SESSION_ex(SSL_SESSION **a, const unsigned char **pp,
  1812	                                long length, OSSL_LIB_CTX *libctx,
  1813	                                const char *propq);
  1814	
  1815	# ifdef OPENSSL_X509_H
  1816	__owur X509 *SSL_get0_peer_certificate(const SSL *s);
  1817	__owur X509 *SSL_get1_peer_certificate(const SSL *s);
  1818	/* Deprecated in 3.0.0 */
  1819	#  ifndef OPENSSL_NO_DEPRECATED_3_0
  1820	#   define SSL_get_peer_certificate SSL_get1_peer_certificate
  1821	#  endif
  1822	# endif
  1823	
  1824	__owur STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s);
  1825	
  1826	__owur int SSL_CTX_get_verify_mode(const SSL_CTX *ctx);
  1827	__owur int SSL_CTX_get_verify_depth(const SSL_CTX *ctx);
  1828	__owur SSL_verify_cb SSL_CTX_get_verify_callback(const SSL_CTX *ctx);
  1829	void SSL_CTX_set_verify(SSL_CTX *ctx, int mode, SSL_verify_cb callback);
  1830	void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth);
  1831	void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
  1832	                                      int (*cb) (X509_STORE_CTX *, void *),
  1833	                                      void *arg);
  1834	void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg),
  1835	                         void *arg);
  1836	# ifndef OPENSSL_NO_DEPRECATED_3_0
  1837	OSSL_DEPRECATEDIN_3_0
  1838	__owur int SSL_CTX_use_RSAPrivateKey(SSL_CTX *ctx, RSA *rsa);
  1839	OSSL_DEPRECATEDIN_3_0
  1840	__owur int SSL_CTX_use_RSAPrivateKey_ASN1(SSL_CTX *ctx, const unsigned char *d,
  1841	                                          long len);
  1842	# endif
  1843	__owur int SSL_CTX_use_PrivateKey(SSL_CTX *ctx, EVP_PKEY *pkey);
  1844	__owur int SSL_CTX_use_PrivateKey_ASN1(int pk, SSL_CTX *ctx,
  1845	                                       const unsigned char *d, long len);
  1846	__owur int SSL_CTX_use_certificate(SSL_CTX *ctx, X509 *x);
  1847	__owur int SSL_CTX_use_certificate_ASN1(SSL_CTX *ctx, int len,
  1848	                                        const unsigned char *d);
  1849	__owur int SSL_CTX_use_cert_and_key(SSL_CTX *ctx, X509 *x509, EVP_PKEY *privatekey,
  1850	                                    STACK_OF(X509) *chain, int override);
  1851	
  1852	void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb);
  1853	void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u);
  1854	pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx);
  1855	void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx);
  1856	void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb);
  1857	void SSL_set_default_passwd_cb_userdata(SSL *s, void *u);
  1858	pem_password_cb *SSL_get_default_passwd_cb(SSL *s);
  1859	void *SSL_get_default_passwd_cb_userdata(SSL *s);
  1860	
  1861	__owur int SSL_CTX_check_private_key(const SSL_CTX *ctx);
  1862	__owur int SSL_check_private_key(const SSL *ctx);
  1863	
  1864	__owur int SSL_CTX_set_session_id_context(SSL_CTX *ctx,
  1865	                                          const unsigned char *sid_ctx,
  1866	                                          unsigned int sid_ctx_len);
  1867	
  1868	SSL *SSL_new(SSL_CTX *ctx);
  1869	int SSL_up_ref(SSL *s);
  1870	int SSL_is_dtls(const SSL *s);
  1871	int SSL_is_tls(const SSL *s);
  1872	int SSL_is_quic(const SSL *s);
  1873	__owur int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
  1874	                                      unsigned int sid_ctx_len);
  1875	
  1876	__owur int SSL_CTX_set_purpose(SSL_CTX *ctx, int purpose);
  1877	__owur int SSL_set_purpose(SSL *ssl, int purpose);
  1878	__owur int SSL_CTX_set_trust(SSL_CTX *ctx, int trust);
  1879	__owur int SSL_set_trust(SSL *ssl, int trust);
  1880	
  1881	__owur int SSL_set1_host(SSL *s, const char *host);
  1882	__owur int SSL_add1_host(SSL *s, const char *host);
  1883	__owur const char *SSL_get0_peername(SSL *s);
  1884	void SSL_set_hostflags(SSL *s, unsigned int flags);
  1885	
  1886	__owur int SSL_CTX_dane_enable(SSL_CTX *ctx);
  1887	__owur int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md,
  1888	                                  uint8_t mtype, uint8_t ord);
  1889	__owur int SSL_dane_enable(SSL *s, const char *basedomain);
  1890	__owur int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
  1891	                             uint8_t mtype, const unsigned char *data, size_t dlen);
  1892	__owur int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki);
  1893	__owur int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
  1894	                              uint8_t *mtype, const unsigned char **data,
  1895	                              size_t *dlen);
  1896	/*
  1897	 * Bridge opacity barrier between libcrypt and libssl, also needed to support
  1898	 * offline testing in test/danetest.c
  1899	 */
  1900	SSL_DANE *SSL_get0_dane(SSL *ssl);
  1901	/*
  1902	 * DANE flags
  1903	 */
  1904	unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags);
  1905	unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags);
  1906	unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags);
  1907	unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags);
  1908	
  1909	__owur int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm);
  1910	__owur int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm);
  1911	
  1912	__owur X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx);
  1913	__owur X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl);
  1914	
  1915	# ifndef OPENSSL_NO_SRP
  1916	#  ifndef OPENSSL_NO_DEPRECATED_3_0
  1917	OSSL_DEPRECATEDIN_3_0 int SSL_CTX_set_srp_username(SSL_CTX *ctx, char *name);
  1918	OSSL_DEPRECATEDIN_3_0 int SSL_CTX_set_srp_password(SSL_CTX *ctx, char *password);
  1919	OSSL_DEPRECATEDIN_3_0 int SSL_CTX_set_srp_strength(SSL_CTX *ctx, int strength);
  1920	OSSL_DEPRECATEDIN_3_0
  1921	int SSL_CTX_set_srp_client_pwd_callback(SSL_CTX *ctx,
  1922	                                        char *(*cb) (SSL *, void *));
  1923	OSSL_DEPRECATEDIN_3_0
  1924	int SSL_CTX_set_srp_verify_param_callback(SSL_CTX *ctx,
  1925	                                          int (*cb) (SSL *, void *));
  1926	OSSL_DEPRECATEDIN_3_0
  1927	int SSL_CTX_set_srp_username_callback(SSL_CTX *ctx,
  1928	                                      int (*cb) (SSL *, int *, void *));
  1929	OSSL_DEPRECATEDIN_3_0 int SSL_CTX_set_srp_cb_arg(SSL_CTX *ctx, void *arg);
  1930	
  1931	OSSL_DEPRECATEDIN_3_0
  1932	int SSL_set_srp_server_param(SSL *s, const BIGNUM *N, const BIGNUM *g,
  1933	                             BIGNUM *sa, BIGNUM *v, char *info);
  1934	OSSL_DEPRECATEDIN_3_0
  1935	int SSL_set_srp_server_param_pw(SSL *s, const char *user, const char *pass,
  1936	                                const char *grp);
  1937	
  1938	OSSL_DEPRECATEDIN_3_0 __owur BIGNUM *SSL_get_srp_g(SSL *s);
  1939	OSSL_DEPRECATEDIN_3_0 __owur BIGNUM *SSL_get_srp_N(SSL *s);
  1940	
  1941	OSSL_DEPRECATEDIN_3_0 __owur char *SSL_get_srp_username(SSL *s);
  1942	OSSL_DEPRECATEDIN_3_0 __owur char *SSL_get_srp_userinfo(SSL *s);
  1943	#  endif
  1944	# endif
  1945	
  1946	/*
  1947	 * ClientHello callback and helpers.
  1948	 */
  1949	
  1950	# define SSL_CLIENT_HELLO_SUCCESS 1
  1951	# define SSL_CLIENT_HELLO_ERROR   0
  1952	# define SSL_CLIENT_HELLO_RETRY   (-1)
  1953	
  1954	typedef int (*SSL_client_hello_cb_fn) (SSL *s, int *al, void *arg);
  1955	void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
  1956	                                 void *arg);
  1957	typedef int (*SSL_new_pending_conn_cb_fn) (SSL_CTX *ctx, SSL *new_ssl,
  1958	                                           void *arg);
  1959	void SSL_CTX_set_new_pending_conn_cb(SSL_CTX *c, SSL_new_pending_conn_cb_fn cb,
  1960	                                     void *arg);
  1961	
  1962	int SSL_client_hello_isv2(SSL *s);
  1963	unsigned int SSL_client_hello_get0_legacy_version(SSL *s);
  1964	size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out);
  1965	size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out);
  1966	size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out);
  1967	size_t SSL_client_hello_get0_compression_methods(SSL *s,
  1968	                                                 const unsigned char **out);
  1969	int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen);
  1970	int SSL_client_hello_get_extension_order(SSL *s, uint16_t *exts,
  1971	                                         size_t *num_exts);
  1972	int SSL_client_hello_get0_ext(SSL *s, unsigned int type,
  1973	                              const unsigned char **out, size_t *outlen);
  1974	
  1975	void SSL_certs_clear(SSL *s);
  1976	void SSL_free(SSL *ssl);
  1977	# ifdef OSSL_ASYNC_FD
  1978	/*
  1979	 * Windows application developer has to include windows.h to use these.
  1980	 */
  1981	__owur int SSL_waiting_for_async(SSL *s);
  1982	__owur int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds);
  1983	__owur int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd,
  1984	                                     size_t *numaddfds, OSSL_ASYNC_FD *delfd,
  1985	                                     size_t *numdelfds);
  1986	__owur int SSL_CTX_set_async_callback(SSL_CTX *ctx, SSL_async_callback_fn callback);
  1987	__owur int SSL_CTX_set_async_callback_arg(SSL_CTX *ctx, void *arg);
  1988	__owur int SSL_set_async_callback(SSL *s, SSL_async_callback_fn callback);
  1989	__owur int SSL_set_async_callback_arg(SSL *s, void *arg);
  1990	__owur int SSL_get_async_status(SSL *s, int *status);
  1991	
  1992	# endif
  1993	__owur int SSL_accept(SSL *ssl);
  1994	__owur int SSL_stateless(SSL *s);
  1995	__owur int SSL_connect(SSL *ssl);
  1996	__owur int SSL_read(SSL *ssl, void *buf, int num);
  1997	__owur int SSL_read_ex(SSL *ssl, void *buf, size_t num, size_t *readbytes);
  1998	
  1999	# define SSL_READ_EARLY_DATA_ERROR   0
  2000	# define SSL_READ_EARLY_DATA_SUCCESS 1
  2001	# define SSL_READ_EARLY_DATA_FINISH  2
  2002	
  2003	__owur int SSL_read_early_data(SSL *s, void *buf, size_t num,
  2004	                               size_t *readbytes);
  2005	__owur int SSL_peek(SSL *ssl, void *buf, int num);
  2006	__owur int SSL_peek_ex(SSL *ssl, void *buf, size_t num, size_t *readbytes);
  2007	__owur ossl_ssize_t SSL_sendfile(SSL *s, int fd, off_t offset, size_t size,
  2008	                                 int flags);
  2009	__owur int SSL_write(SSL *ssl, const void *buf, int num);
  2010	__owur int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written);
  2011	__owur int SSL_write_early_data(SSL *s, const void *buf, size_t num,
  2012	                                size_t *written);
  2013	long SSL_ctrl(SSL *ssl, int cmd, long larg, void *parg);
  2014	long SSL_callback_ctrl(SSL *, int, void (*)(void));
  2015	long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg);
  2016	long SSL_CTX_callback_ctrl(SSL_CTX *, int, void (*)(void));
  2017	
  2018	# define SSL_WRITE_FLAG_CONCLUDE    (1U << 0)
  2019	
  2020	__owur int SSL_write_ex2(SSL *s, const void *buf, size_t num,
  2021	                         uint64_t flags,
  2022	                         size_t *written);
  2023	
  2024	# define SSL_EARLY_DATA_NOT_SENT    0
  2025	# define SSL_EARLY_DATA_REJECTED    1
  2026	# define SSL_EARLY_DATA_ACCEPTED    2
  2027	
  2028	__owur int SSL_get_early_data_status(const SSL *s);
  2029	
  2030	__owur int SSL_get_error(const SSL *s, int ret_code);
  2031	__owur const char *SSL_get_version(const SSL *s);
  2032	__owur int SSL_get_handshake_rtt(const SSL *s, uint64_t *rtt);
  2033	
  2034	/* This sets the 'default' SSL version that SSL_new() will create */
  2035	# ifndef OPENSSL_NO_DEPRECATED_3_0
  2036	OSSL_DEPRECATEDIN_3_0
  2037	__owur int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth);
  2038	# endif
  2039	
  2040	# ifndef OPENSSL_NO_SSL3_METHOD
  2041	#  ifndef OPENSSL_NO_DEPRECATED_1_1_0
  2042	OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *SSLv3_method(void); /* SSLv3 */
  2043	OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *SSLv3_server_method(void);
  2044	OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *SSLv3_client_method(void);
  2045	#  endif
  2046	# endif
  2047	
  2048	#define SSLv23_method           TLS_method
  2049	#define SSLv23_server_method    TLS_server_method
  2050	#define SSLv23_client_method    TLS_client_method
  2051	
  2052	/* Negotiate highest available SSL/TLS version */
  2053	__owur const SSL_METHOD *TLS_method(void);
  2054	__owur const SSL_METHOD *TLS_server_method(void);
  2055	__owur const SSL_METHOD *TLS_client_method(void);
  2056	
  2057	# ifndef OPENSSL_NO_TLS1_METHOD
  2058	#  ifndef OPENSSL_NO_DEPRECATED_1_1_0
  2059	OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *TLSv1_method(void); /* TLSv1.0 */
  2060	OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *TLSv1_server_method(void);
  2061	OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *TLSv1_client_method(void);
  2062	#  endif
  2063	# endif
  2064	
  2065	# ifndef OPENSSL_NO_TLS1_1_METHOD
  2066	#  ifndef OPENSSL_NO_DEPRECATED_1_1_0
  2067	OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *TLSv1_1_method(void); /* TLSv1.1 */
  2068	OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *TLSv1_1_server_method(void);
  2069	OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *TLSv1_1_client_method(void);
  2070	#  endif
  2071	# endif
  2072	
  2073	# ifndef OPENSSL_NO_TLS1_2_METHOD
  2074	#  ifndef OPENSSL_NO_DEPRECATED_1_1_0
  2075	OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *TLSv1_2_method(void); /* TLSv1.2 */
  2076	OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *TLSv1_2_server_method(void);
  2077	OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *TLSv1_2_client_method(void);
  2078	#  endif
  2079	# endif
  2080	
  2081	# ifndef OPENSSL_NO_DTLS1_METHOD
  2082	#  ifndef OPENSSL_NO_DEPRECATED_1_1_0
  2083	OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *DTLSv1_method(void); /* DTLSv1.0 */
  2084	OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *DTLSv1_server_method(void);
  2085	OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *DTLSv1_client_method(void);
  2086	#  endif
  2087	# endif
  2088	
  2089	# ifndef OPENSSL_NO_DTLS1_2_METHOD
  2090	/* DTLSv1.2 */
  2091	#  ifndef OPENSSL_NO_DEPRECATED_1_1_0
  2092	OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *DTLSv1_2_method(void);
  2093	OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *DTLSv1_2_server_method(void);
  2094	OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *DTLSv1_2_client_method(void);
  2095	#  endif
  2096	# endif
  2097	
  2098	__owur const SSL_METHOD *DTLS_method(void); /* DTLS 1.0 and 1.2 */
  2099	__owur const SSL_METHOD *DTLS_server_method(void); /* DTLS 1.0 and 1.2 */
  2100	__owur const SSL_METHOD *DTLS_client_method(void); /* DTLS 1.0 and 1.2 */
  2101	
  2102	__owur size_t DTLS_get_data_mtu(const SSL *s);
  2103	
  2104	__owur STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s);
  2105	__owur STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx);
  2106	__owur STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s);
  2107	__owur STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s);
  2108	
  2109	__owur int SSL_do_handshake(SSL *s);
  2110	int SSL_key_update(SSL *s, int updatetype);
  2111	int SSL_get_key_update_type(const SSL *s);
  2112	int SSL_renegotiate(SSL *s);
  2113	int SSL_renegotiate_abbreviated(SSL *s);
  2114	__owur int SSL_renegotiate_pending(const SSL *s);
  2115	int SSL_new_session_ticket(SSL *s);
  2116	int SSL_shutdown(SSL *s);
  2117	__owur int SSL_verify_client_post_handshake(SSL *s);
  2118	void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val);
  2119	void SSL_set_post_handshake_auth(SSL *s, int val);
  2120	
  2121	__owur const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx);
  2122	__owur const SSL_METHOD *SSL_get_ssl_method(const SSL *s);
  2123	__owur int SSL_set_ssl_method(SSL *s, const SSL_METHOD *method);
  2124	__owur const char *SSL_alert_type_string_long(int value);
  2125	__owur const char *SSL_alert_type_string(int value);
  2126	__owur const char *SSL_alert_desc_string_long(int value);
  2127	__owur const char *SSL_alert_desc_string(int value);
  2128	
  2129	void SSL_set0_CA_list(SSL *s, STACK_OF(X509_NAME) *name_list);
  2130	void SSL_CTX_set0_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *name_list);
  2131	__owur const STACK_OF(X509_NAME) *SSL_get0_CA_list(const SSL *s);
  2132	__owur const STACK_OF(X509_NAME) *SSL_CTX_get0_CA_list(const SSL_CTX *ctx);
  2133	__owur int SSL_add1_to_CA_list(SSL *ssl, const X509 *x);
  2134	__owur int SSL_CTX_add1_to_CA_list(SSL_CTX *ctx, const X509 *x);
  2135	__owur const STACK_OF(X509_NAME) *SSL_get0_peer_CA_list(const SSL *s);
  2136	
  2137	void SSL_set_client_CA_list(SSL *s, STACK_OF(X509_NAME) *name_list);
  2138	void SSL_CTX_set_client_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *name_list);
  2139	__owur STACK_OF(X509_NAME) *SSL_get_client_CA_list(const SSL *s);
  2140	__owur STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *s);
  2141	__owur int SSL_add_client_CA(SSL *ssl, X509 *x);
  2142	__owur int SSL_CTX_add_client_CA(SSL_CTX *ctx, X509 *x);
  2143	
  2144	void SSL_set_connect_state(SSL *s);
  2145	void SSL_set_accept_state(SSL *s);
  2146	
  2147	__owur long SSL_get_default_timeout(const SSL *s);
  2148	
  2149	# ifndef OPENSSL_NO_DEPRECATED_1_1_0
  2150	#  define SSL_library_init() OPENSSL_init_ssl(0, NULL)
  2151	# endif
  2152	
  2153	__owur char *SSL_CIPHER_description(const SSL_CIPHER *, char *buf, int size);
  2154	__owur STACK_OF(X509_NAME) *SSL_dup_CA_list(const STACK_OF(X509_NAME) *sk);
  2155	
  2156	__owur SSL *SSL_dup(SSL *ssl);
  2157	
  2158	__owur X509 *SSL_get_certificate(const SSL *ssl);
  2159	/*
  2160	 * EVP_PKEY
  2161	 */
  2162	struct evp_pkey_st *SSL_get_privatekey(const SSL *ssl);
  2163	
  2164	__owur X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx);
  2165	__owur EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx);
  2166	
  2167	void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode);
  2168	__owur int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx);
  2169	void SSL_set_quiet_shutdown(SSL *ssl, int mode);
  2170	__owur int SSL_get_quiet_shutdown(const SSL *ssl);
  2171	void SSL_set_shutdown(SSL *ssl, int mode);
  2172	__owur int SSL_get_shutdown(const SSL *ssl);
  2173	__owur int SSL_version(const SSL *ssl);
  2174	__owur int SSL_client_version(const SSL *s);
  2175	__owur int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx);
  2176	__owur int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx);
  2177	__owur int SSL_CTX_set_default_verify_file(SSL_CTX *ctx);
  2178	__owur int SSL_CTX_set_default_verify_store(SSL_CTX *ctx);
  2179	__owur int SSL_CTX_load_verify_file(SSL_CTX *ctx, const char *CAfile);
  2180	__owur int SSL_CTX_load_verify_dir(SSL_CTX *ctx, const char *CApath);
  2181	__owur int SSL_CTX_load_verify_store(SSL_CTX *ctx, const char *CAstore);
  2182	__owur int SSL_CTX_load_verify_locations(SSL_CTX *ctx,
  2183	                                                        const char *CAfile,
  2184	                                                        const char *CApath);
  2185	# define SSL_get0_session SSL_get_session/* just peek at pointer */
  2186	__owur SSL_SESSION *SSL_get_session(const SSL *ssl);
  2187	__owur SSL_SESSION *SSL_get1_session(SSL *ssl); /* obtain a reference count */
  2188	__owur SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl);
  2189	SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx);
  2190	void SSL_set_info_callback(SSL *ssl,
  2191	                           void (*cb) (const SSL *ssl, int type, int val));
  2192	void (*SSL_get_info_callback(const SSL *ssl)) (const SSL *ssl, int type,
  2193	                                               int val);
  2194	__owur OSSL_HANDSHAKE_STATE SSL_get_state(const SSL *ssl);
  2195	
  2196	void SSL_set_verify_result(SSL *ssl, long v);
  2197	__owur long SSL_get_verify_result(const SSL *ssl);
  2198	__owur STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s);
  2199	
  2200	__owur size_t SSL_get_client_random(const SSL *ssl, unsigned char *out,
  2201	                                    size_t outlen);
  2202	__owur size_t SSL_get_server_random(const SSL *ssl, unsigned char *out,
  2203	                                    size_t outlen);
  2204	__owur size_t SSL_SESSION_get_master_key(const SSL_SESSION *sess,
  2205	                                         unsigned char *out, size_t outlen);
  2206	__owur int SSL_SESSION_set1_master_key(SSL_SESSION *sess,
  2207	                                       const unsigned char *in, size_t len);
  2208	uint8_t SSL_SESSION_get_max_fragment_length(const SSL_SESSION *sess);
  2209	
  2210	#define SSL_get_ex_new_index(l, p, newf, dupf, freef) \
  2211	    CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, l, p, newf, dupf, freef)
  2212	__owur int SSL_set_ex_data(SSL *ssl, int idx, void *data);
  2213	void *SSL_get_ex_data(const SSL *ssl, int idx);
  2214	#define SSL_SESSION_get_ex_new_index(l, p, newf, dupf, freef) \
  2215	    CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_SESSION, l, p, newf, dupf, freef)
  2216	__owur int SSL_SESSION_set_ex_data(SSL_SESSION *ss, int idx, void *data);
  2217	void *SSL_SESSION_get_ex_data(const SSL_SESSION *ss, int idx);
  2218	#define SSL_CTX_get_ex_new_index(l, p, newf, dupf, freef) \
  2219	    CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, l, p, newf, dupf, freef)
  2220	__owur int SSL_CTX_set_ex_data(SSL_CTX *ssl, int idx, void *data);
  2221	void *SSL_CTX_get_ex_data(const SSL_CTX *ssl, int idx);
  2222	
  2223	__owur int SSL_get_ex_data_X509_STORE_CTX_idx(void);
  2224	
  2225	# define SSL_CTX_sess_set_cache_size(ctx,t) \
  2226	        SSL_CTX_ctrl(ctx,SSL_CTRL_SET_SESS_CACHE_SIZE,t,NULL)
  2227	# define SSL_CTX_sess_get_cache_size(ctx) \
  2228	        SSL_CTX_ctrl(ctx,SSL_CTRL_GET_SESS_CACHE_SIZE,0,NULL)
  2229	# define SSL_CTX_set_session_cache_mode(ctx,m) \
  2230	        SSL_CTX_ctrl(ctx,SSL_CTRL_SET_SESS_CACHE_MODE,m,NULL)
  2231	# define SSL_CTX_get_session_cache_mode(ctx) \
  2232	        SSL_CTX_ctrl(ctx,SSL_CTRL_GET_SESS_CACHE_MODE,0,NULL)
  2233	
  2234	# define SSL_CTX_get_default_read_ahead(ctx) SSL_CTX_get_read_ahead(ctx)
  2235	# define SSL_CTX_set_default_read_ahead(ctx,m) SSL_CTX_set_read_ahead(ctx,m)
  2236	# define SSL_CTX_get_read_ahead(ctx) \
  2237	        SSL_CTX_ctrl(ctx,SSL_CTRL_GET_READ_AHEAD,0,NULL)
  2238	# define SSL_CTX_set_read_ahead(ctx,m) \
  2239	        SSL_CTX_ctrl(ctx,SSL_CTRL_SET_READ_AHEAD,m,NULL)
  2240	# define SSL_CTX_get_max_cert_list(ctx) \
  2241	        SSL_CTX_ctrl(ctx,SSL_CTRL_GET_MAX_CERT_LIST,0,NULL)
  2242	# define SSL_CTX_set_max_cert_list(ctx,m) \
  2243	        SSL_CTX_ctrl(ctx,SSL_CTRL_SET_MAX_CERT_LIST,m,NULL)
  2244	# define SSL_get_max_cert_list(ssl) \
  2245	        SSL_ctrl(ssl,SSL_CTRL_GET_MAX_CERT_LIST,0,NULL)
  2246	# define SSL_set_max_cert_list(ssl,m) \
  2247	        SSL_ctrl(ssl,SSL_CTRL_SET_MAX_CERT_LIST,m,NULL)
  2248	
  2249	# define SSL_CTX_set_max_send_fragment(ctx,m) \
  2250	        SSL_CTX_ctrl(ctx,SSL_CTRL_SET_MAX_SEND_FRAGMENT,m,NULL)
  2251	# define SSL_set_max_send_fragment(ssl,m) \
  2252	        SSL_ctrl(ssl,SSL_CTRL_SET_MAX_SEND_FRAGMENT,m,NULL)
  2253	# define SSL_CTX_set_split_send_fragment(ctx,m) \
  2254	        SSL_CTX_ctrl(ctx,SSL_CTRL_SET_SPLIT_SEND_FRAGMENT,m,NULL)
  2255	# define SSL_set_split_send_fragment(ssl,m) \
  2256	        SSL_ctrl(ssl,SSL_CTRL_SET_SPLIT_SEND_FRAGMENT,m,NULL)
  2257	# define SSL_CTX_set_max_pipelines(ctx,m) \
  2258	        SSL_CTX_ctrl(ctx,SSL_CTRL_SET_MAX_PIPELINES,m,NULL)
  2259	# define SSL_set_max_pipelines(ssl,m) \
  2260	        SSL_ctrl(ssl,SSL_CTRL_SET_MAX_PIPELINES,m,NULL)
  2261	# define SSL_set_retry_verify(ssl) \
  2262	        (SSL_ctrl(ssl,SSL_CTRL_SET_RETRY_VERIFY,0,NULL) > 0)
  2263	
  2264	void SSL_CTX_set_default_read_buffer_len(SSL_CTX *ctx, size_t len);
  2265	void SSL_set_default_read_buffer_len(SSL *s, size_t len);
  2266	
  2267	# ifndef OPENSSL_NO_DH
  2268	#  ifndef OPENSSL_NO_DEPRECATED_3_0
  2269	/* NB: the |keylength| is only applicable when is_export is true */
  2270	OSSL_DEPRECATEDIN_3_0
  2271	void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
  2272	                                 DH *(*dh) (SSL *ssl, int is_export,
  2273	                                            int keylength));
  2274	OSSL_DEPRECATEDIN_3_0
  2275	void SSL_set_tmp_dh_callback(SSL *ssl,
  2276	                             DH *(*dh) (SSL *ssl, int is_export,
  2277	                                        int keylength));
  2278	#  endif
  2279	# endif
  2280	
  2281	__owur const COMP_METHOD *SSL_get_current_compression(const SSL *s);
  2282	__owur const COMP_METHOD *SSL_get_current_expansion(const SSL *s);
  2283	__owur const char *SSL_COMP_get_name(const COMP_METHOD *comp);
  2284	__owur const char *SSL_COMP_get0_name(const SSL_COMP *comp);
  2285	__owur int SSL_COMP_get_id(const SSL_COMP *comp);
  2286	STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void);
  2287	__owur STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP)
  2288	                                                             *meths);
  2289	# ifndef OPENSSL_NO_DEPRECATED_1_1_0
  2290	#  define SSL_COMP_free_compression_methods() while(0) continue
  2291	# endif
  2292	__owur int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm);
  2293	
  2294	const SSL_CIPHER *SSL_CIPHER_find(SSL *ssl, const unsigned char *ptr);
  2295	int SSL_CIPHER_get_cipher_nid(const SSL_CIPHER *c);
  2296	int SSL_CIPHER_get_digest_nid(const SSL_CIPHER *c);
  2297	int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
  2298	                             int isv2format, STACK_OF(SSL_CIPHER) **sk,
  2299	                             STACK_OF(SSL_CIPHER) **scsvs);
  2300	
  2301	/* TLS extensions functions */
  2302	__owur int SSL_set_session_ticket_ext(SSL *s, void *ext_data, int ext_len);
  2303	
  2304	__owur int SSL_set_session_ticket_ext_cb(SSL *s,
  2305	                                         tls_session_ticket_ext_cb_fn cb,
  2306	                                         void *arg);
  2307	
  2308	/* Pre-shared secret session resumption functions */
  2309	__owur int SSL_set_session_secret_cb(SSL *s,
  2310	                                     tls_session_secret_cb_fn session_secret_cb,
  2311	                                     void *arg);
  2312	
  2313	void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
  2314	                                                int (*cb) (SSL *ssl,
  2315	                                                           int
  2316	                                                           is_forward_secure));
  2317	
  2318	void SSL_set_not_resumable_session_callback(SSL *ssl,
  2319	                                            int (*cb) (SSL *ssl,
  2320	                                                       int is_forward_secure));
  2321	
  2322	void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
  2323	                                         size_t (*cb) (SSL *ssl, int type,
  2324	                                                       size_t len, void *arg));
  2325	void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg);
  2326	void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx);
  2327	int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size);
  2328	int SSL_CTX_set_block_padding_ex(SSL_CTX *ctx, size_t app_block_size,
  2329	                                 size_t hs_block_size);
  2330	
  2331	int SSL_set_record_padding_callback(SSL *ssl,
  2332	                                    size_t (*cb) (SSL *ssl, int type,
  2333	                                                  size_t len, void *arg));
  2334	void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg);
  2335	void *SSL_get_record_padding_callback_arg(const SSL *ssl);
  2336	int SSL_set_block_padding(SSL *ssl, size_t block_size);
  2337	int SSL_set_block_padding_ex(SSL *ssl, size_t app_block_size,
  2338	                             size_t hs_block_size);
  2339	int SSL_set_num_tickets(SSL *s, size_t num_tickets);
  2340	size_t SSL_get_num_tickets(const SSL *s);
  2341	int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets);
  2342	size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx);
  2343	
  2344	/* QUIC support */
  2345	int SSL_handle_events(SSL *s);
  2346	__owur int SSL_get_event_timeout(SSL *s, struct timeval *tv, int *is_infinite);
  2347	__owur int SSL_get_rpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc);
  2348	__owur int SSL_get_wpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc);
  2349	__owur int SSL_net_read_desired(SSL *s);
  2350	__owur int SSL_net_write_desired(SSL *s);
  2351	__owur int SSL_set_blocking_mode(SSL *s, int blocking);
  2352	__owur int SSL_get_blocking_mode(SSL *s);
  2353	__owur int SSL_set1_initial_peer_addr(SSL *s, const BIO_ADDR *peer_addr);
  2354	__owur SSL *SSL_get0_connection(SSL *s);
  2355	__owur int SSL_is_connection(SSL *s);
  2356	
  2357	__owur int SSL_is_listener(SSL *ssl);
  2358	__owur SSL *SSL_get0_listener(SSL *s);
  2359	#define SSL_LISTENER_FLAG_NO_VALIDATE   (1UL << 1)
  2360	__owur SSL *SSL_new_listener(SSL_CTX *ctx, uint64_t flags);
  2361	__owur SSL *SSL_new_listener_from(SSL *ssl, uint64_t flags);
  2362	__owur SSL *SSL_new_from_listener(SSL *ssl, uint64_t flags);
  2363	#define SSL_ACCEPT_CONNECTION_NO_BLOCK  (1UL << 0)
  2364	__owur SSL *SSL_accept_connection(SSL *ssl, uint64_t flags);
  2365	__owur size_t SSL_get_accept_connection_queue_len(SSL *ssl);
  2366	__owur int SSL_listen(SSL *ssl);
  2367	
  2368	__owur int SSL_is_domain(SSL *s);
  2369	__owur SSL *SSL_get0_domain(SSL *s);
  2370	__owur SSL *SSL_new_domain(SSL_CTX *ctx, uint64_t flags);
  2371	
  2372	#define SSL_DOMAIN_FLAG_SINGLE_THREAD       (1U << 0)
  2373	#define SSL_DOMAIN_FLAG_MULTI_THREAD        (1U << 1)
  2374	#define SSL_DOMAIN_FLAG_THREAD_ASSISTED     (1U << 2)
  2375	#define SSL_DOMAIN_FLAG_BLOCKING            (1U << 3)
  2376	#define SSL_DOMAIN_FLAG_LEGACY_BLOCKING     (1U << 4)
  2377	
  2378	__owur int SSL_CTX_set_domain_flags(SSL_CTX *ctx, uint64_t domain_flags);
  2379	__owur int SSL_CTX_get_domain_flags(const SSL_CTX *ctx, uint64_t *domain_flags);
  2380	__owur int SSL_get_domain_flags(const SSL *ssl, uint64_t *domain_flags);
  2381	
  2382	#define SSL_STREAM_TYPE_NONE        0
  2383	#define SSL_STREAM_TYPE_READ        (1U << 0)
  2384	#define SSL_STREAM_TYPE_WRITE       (1U << 1)
  2385	#define SSL_STREAM_TYPE_BIDI        (SSL_STREAM_TYPE_READ | SSL_STREAM_TYPE_WRITE)
  2386	__owur int SSL_get_stream_type(SSL *s);
  2387	
  2388	__owur uint64_t SSL_get_stream_id(SSL *s);
  2389	__owur int SSL_is_stream_local(SSL *s);
  2390	
  2391	#define SSL_DEFAULT_STREAM_MODE_NONE        0
  2392	#define SSL_DEFAULT_STREAM_MODE_AUTO_BIDI   1
  2393	#define SSL_DEFAULT_STREAM_MODE_AUTO_UNI    2
  2394	__owur int SSL_set_default_stream_mode(SSL *s, uint32_t mode);
  2395	
  2396	#define SSL_STREAM_FLAG_UNI         (1U << 0)
  2397	#define SSL_STREAM_FLAG_NO_BLOCK    (1U << 1)
  2398	#define SSL_STREAM_FLAG_ADVANCE     (1U << 2)
  2399	__owur SSL *SSL_new_stream(SSL *s, uint64_t flags);
  2400	
  2401	#define SSL_INCOMING_STREAM_POLICY_AUTO      0
  2402	#define SSL_INCOMING_STREAM_POLICY_ACCEPT    1
  2403	#define SSL_INCOMING_STREAM_POLICY_REJECT    2
  2404	__owur int SSL_set_incoming_stream_policy(SSL *s, int policy, uint64_t aec);
  2405	
  2406	#define SSL_ACCEPT_STREAM_NO_BLOCK      (1U << 0)
  2407	__owur SSL *SSL_accept_stream(SSL *s, uint64_t flags);
  2408	__owur size_t SSL_get_accept_stream_queue_len(SSL *s);
  2409	
  2410	# ifndef OPENSSL_NO_QUIC
  2411	__owur int SSL_inject_net_dgram(SSL *s, const unsigned char *buf,
  2412	                                size_t buf_len,
  2413	                                const BIO_ADDR *peer,
  2414	                                const BIO_ADDR *local);
  2415	# endif
  2416	
  2417	typedef struct ssl_shutdown_ex_args_st {
  2418	    uint64_t    quic_error_code;
  2419	    const char  *quic_reason;
  2420	} SSL_SHUTDOWN_EX_ARGS;
  2421	
  2422	#define SSL_SHUTDOWN_FLAG_RAPID             (1U << 0)
  2423	#define SSL_SHUTDOWN_FLAG_NO_STREAM_FLUSH   (1U << 1)
  2424	#define SSL_SHUTDOWN_FLAG_NO_BLOCK          (1U << 2)
  2425	#define SSL_SHUTDOWN_FLAG_WAIT_PEER         (1U << 3)
  2426	
  2427	__owur int SSL_shutdown_ex(SSL *ssl, uint64_t flags,
  2428	                           const SSL_SHUTDOWN_EX_ARGS *args,
  2429	                           size_t args_len);
  2430	
  2431	__owur int SSL_stream_conclude(SSL *ssl, uint64_t flags);
  2432	
  2433	typedef struct ssl_stream_reset_args_st {
  2434	    uint64_t quic_error_code;
  2435	} SSL_STREAM_RESET_ARGS;
  2436	
  2437	__owur int SSL_stream_reset(SSL *ssl,
  2438	                            const SSL_STREAM_RESET_ARGS *args,
  2439	                            size_t args_len);
  2440	
  2441	#define SSL_STREAM_STATE_NONE           0
  2442	#define SSL_STREAM_STATE_OK             1
  2443	#define SSL_STREAM_STATE_WRONG_DIR      2
  2444	#define SSL_STREAM_STATE_FINISHED       3
  2445	#define SSL_STREAM_STATE_RESET_LOCAL    4
  2446	#define SSL_STREAM_STATE_RESET_REMOTE   5
  2447	#define SSL_STREAM_STATE_CONN_CLOSED    6
  2448	__owur int SSL_get_stream_read_state(SSL *ssl);
  2449	__owur int SSL_get_stream_write_state(SSL *ssl);
  2450	
  2451	__owur int SSL_get_stream_read_error_code(SSL *ssl, uint64_t *app_error_code);
  2452	__owur int SSL_get_stream_write_error_code(SSL *ssl, uint64_t *app_error_code);
  2453	
  2454	#define SSL_CONN_CLOSE_FLAG_LOCAL       (1U << 0)
  2455	#define SSL_CONN_CLOSE_FLAG_TRANSPORT   (1U << 1)
  2456	
  2457	typedef struct ssl_conn_close_info_st {
  2458	    uint64_t    error_code, frame_type;
  2459	    const char  *reason;
  2460	    size_t      reason_len;
  2461	    uint32_t    flags;
  2462	} SSL_CONN_CLOSE_INFO;
  2463	
  2464	__owur int SSL_get_conn_close_info(SSL *ssl,
  2465	                                   SSL_CONN_CLOSE_INFO *info,
  2466	                                   size_t info_len);
  2467	
  2468	# define SSL_VALUE_CLASS_GENERIC                0
  2469	# define SSL_VALUE_CLASS_FEATURE_REQUEST        1
  2470	# define SSL_VALUE_CLASS_FEATURE_PEER_REQUEST   2
  2471	# define SSL_VALUE_CLASS_FEATURE_NEGOTIATED     3
  2472	
  2473	# define SSL_VALUE_NONE                             0
  2474	# define SSL_VALUE_QUIC_STREAM_BIDI_LOCAL_AVAIL     1
  2475	# define SSL_VALUE_QUIC_STREAM_BIDI_REMOTE_AVAIL    2
  2476	# define SSL_VALUE_QUIC_STREAM_UNI_LOCAL_AVAIL      3
  2477	# define SSL_VALUE_QUIC_STREAM_UNI_REMOTE_AVAIL     4
  2478	# define SSL_VALUE_QUIC_IDLE_TIMEOUT                5
  2479	# define SSL_VALUE_EVENT_HANDLING_MODE              6
  2480	# define SSL_VALUE_STREAM_WRITE_BUF_SIZE            7
  2481	# define SSL_VALUE_STREAM_WRITE_BUF_USED            8
  2482	# define SSL_VALUE_STREAM_WRITE_BUF_AVAIL           9
  2483	
  2484	# define SSL_VALUE_EVENT_HANDLING_MODE_INHERIT      0
  2485	# define SSL_VALUE_EVENT_HANDLING_MODE_IMPLICIT     1
  2486	# define SSL_VALUE_EVENT_HANDLING_MODE_EXPLICIT     2
  2487	
  2488	int SSL_get_value_uint(SSL *s, uint32_t class_, uint32_t id, uint64_t *v);
  2489	int SSL_set_value_uint(SSL *s, uint32_t class_, uint32_t id, uint64_t v);
  2490	
  2491	# define SSL_get_generic_value_uint(ssl, id, v) \
  2492	    SSL_get_value_uint((ssl), SSL_VALUE_CLASS_GENERIC, (id), (v))
  2493	# define SSL_set_generic_value_uint(ssl, id, v) \
  2494	    SSL_set_value_uint((ssl), SSL_VALUE_CLASS_GENERIC, (id), (v))
  2495	# define SSL_get_feature_request_uint(ssl, id, v) \
  2496	    SSL_get_value_uint((ssl), SSL_VALUE_CLASS_FEATURE_REQUEST, (id), (v))
  2497	# define SSL_set_feature_request_uint(ssl, id, v) \
  2498	    SSL_set_value_uint((ssl), SSL_VALUE_CLASS_FEATURE_REQUEST, (id), (v))
  2499	# define SSL_get_feature_peer_request_uint(ssl, id, v) \
  2500	    SSL_get_value_uint((ssl), SSL_VALUE_CLASS_FEATURE_PEER_REQUEST, (id), (v))
  2501	# define SSL_get_feature_negotiated_uint(ssl, id, v) \
  2502	    SSL_get_value_uint((ssl), SSL_VALUE_CLASS_FEATURE_NEGOTIATED, (id), (v))
  2503	
  2504	# define SSL_get_quic_stream_bidi_local_avail(ssl, value) \
  2505	    SSL_get_generic_value_uint((ssl), SSL_VALUE_QUIC_STREAM_BIDI_LOCAL_AVAIL, \
  2506	                               (value))
  2507	# define SSL_get_quic_stream_bidi_remote_avail(ssl, value) \
  2508	    SSL_get_generic_value_uint((ssl), SSL_VALUE_QUIC_STREAM_BIDI_REMOTE_AVAIL, \
  2509	                               (value))
  2510	# define SSL_get_quic_stream_uni_local_avail(ssl, value) \
  2511	    SSL_get_generic_value_uint((ssl), SSL_VALUE_QUIC_STREAM_UNI_LOCAL_AVAIL, \
  2512	                               (value))
  2513	# define SSL_get_quic_stream_uni_remote_avail(ssl, value) \
  2514	    SSL_get_generic_value_uint((ssl), SSL_VALUE_QUIC_STREAM_UNI_REMOTE_AVAIL, \
  2515	                               (value))
  2516	
  2517	# define SSL_get_event_handling_mode(ssl, value) \
  2518	    SSL_get_generic_value_uint((ssl), SSL_VALUE_EVENT_HANDLING_MODE, \
  2519	                               (value))
  2520	# define SSL_set_event_handling_mode(ssl, value) \
  2521	    SSL_set_generic_value_uint((ssl), SSL_VALUE_EVENT_HANDLING_MODE, \
  2522	                               (value))
  2523	
  2524	# define SSL_get_stream_write_buf_size(ssl, value) \
  2525	    SSL_get_generic_value_uint((ssl), SSL_VALUE_STREAM_WRITE_BUF_SIZE, \
  2526	                               (value))
  2527	# define SSL_get_stream_write_buf_used(ssl, value) \
  2528	    SSL_get_generic_value_uint((ssl), SSL_VALUE_STREAM_WRITE_BUF_USED, \
  2529	                               (value))
  2530	# define SSL_get_stream_write_buf_avail(ssl, value) \
  2531	    SSL_get_generic_value_uint((ssl), SSL_VALUE_STREAM_WRITE_BUF_AVAIL, \
  2532	                               (value))
  2533	
  2534	# define SSL_POLL_EVENT_NONE        0
  2535	
  2536	# define SSL_POLL_EVENT_F           (1U <<  0) /* F   (Failure) */
  2537	# define SSL_POLL_EVENT_EL          (1U <<  1) /* EL  (Exception on Listener) */
  2538	# define SSL_POLL_EVENT_EC          (1U <<  2) /* EC  (Exception on Conn) */
  2539	# define SSL_POLL_EVENT_ECD         (1U <<  3) /* ECD (Exception on Conn Drained) */
  2540	# define SSL_POLL_EVENT_ER          (1U <<  4) /* ER  (Exception on Read) */
  2541	# define SSL_POLL_EVENT_EW          (1U <<  5) /* EW  (Exception on Write) */
  2542	# define SSL_POLL_EVENT_R           (1U <<  6) /* R   (Readable) */
  2543	# define SSL_POLL_EVENT_W           (1U <<  7) /* W   (Writable) */
  2544	# define SSL_POLL_EVENT_IC          (1U <<  8) /* IC  (Incoming Connection) */
  2545	# define SSL_POLL_EVENT_ISB         (1U <<  9) /* ISB (Incoming Stream: Bidi) */
  2546	# define SSL_POLL_EVENT_ISU         (1U << 10) /* ISU (Incoming Stream: Uni) */
  2547	# define SSL_POLL_EVENT_OSB         (1U << 11) /* OSB (Outgoing Stream: Bidi) */
  2548	# define SSL_POLL_EVENT_OSU         (1U << 12) /* OSU (Outgoing Stream: Uni) */
  2549	
  2550	# define SSL_POLL_EVENT_RW          (SSL_POLL_EVENT_R | SSL_POLL_EVENT_W)
  2551	# define SSL_POLL_EVENT_RE          (SSL_POLL_EVENT_R | SSL_POLL_EVENT_ER)
  2552	# define SSL_POLL_EVENT_WE          (SSL_POLL_EVENT_W | SSL_POLL_EVENT_EW)
  2553	# define SSL_POLL_EVENT_RWE         (SSL_POLL_EVENT_RE | SSL_POLL_EVENT_WE)
  2554	# define SSL_POLL_EVENT_E           (SSL_POLL_EVENT_EL | SSL_POLL_EVENT_EC \
  2555	                                     | SSL_POLL_EVENT_ER | SSL_POLL_EVENT_EW)
  2556	# define SSL_POLL_EVENT_IS          (SSL_POLL_EVENT_ISB | SSL_POLL_EVENT_ISU)
  2557	# define SSL_POLL_EVENT_ISE         (SSL_POLL_EVENT_IS | SSL_POLL_EVENT_EC)
  2558	# define SSL_POLL_EVENT_I           (SSL_POLL_EVENT_IS | SSL_POLL_EVENT_IC)
  2559	# define SSL_POLL_EVENT_OS          (SSL_POLL_EVENT_OSB | SSL_POLL_EVENT_OSU)
  2560	# define SSL_POLL_EVENT_OSE         (SSL_POLL_EVENT_OS | SSL_POLL_EVENT_EC)
  2561	
  2562	typedef struct ssl_poll_item_st {
  2563	    BIO_POLL_DESCRIPTOR desc;
  2564	    uint64_t            events, revents;
  2565	} SSL_POLL_ITEM;
  2566	
  2567	# define SSL_POLL_FLAG_NO_HANDLE_EVENTS  (1U << 0)
  2568	
  2569	__owur int SSL_poll(SSL_POLL_ITEM *items,
  2570	                    size_t num_items,
  2571	                    size_t stride,
  2572	                    const struct timeval *timeout,
  2573	                    uint64_t flags,
  2574	                    size_t *result_count);
  2575	
  2576	static ossl_inline ossl_unused BIO_POLL_DESCRIPTOR
  2577	SSL_as_poll_descriptor(SSL *s)
  2578	{
  2579	    BIO_POLL_DESCRIPTOR d;
  2580	
  2581	    d.type      = BIO_POLL_DESCRIPTOR_TYPE_SSL;
  2582	    d.value.ssl = s;
  2583	    return d;
  2584	}
  2585	
  2586	# ifndef OPENSSL_NO_DEPRECATED_1_1_0
  2587	#  define SSL_cache_hit(s) SSL_session_reused(s)
  2588	# endif
  2589	
  2590	__owur int SSL_session_reused(const SSL *s);
  2591	__owur int SSL_is_server(const SSL *s);
  2592	
  2593	__owur __owur SSL_CONF_CTX *SSL_CONF_CTX_new(void);
  2594	int SSL_CONF_CTX_finish(SSL_CONF_CTX *cctx);
  2595	void SSL_CONF_CTX_free(SSL_CONF_CTX *cctx);
  2596	unsigned int SSL_CONF_CTX_set_flags(SSL_CONF_CTX *cctx, unsigned int flags);
  2597	__owur unsigned int SSL_CONF_CTX_clear_flags(SSL_CONF_CTX *cctx,
  2598	                                             unsigned int flags);
  2599	__owur int SSL_CONF_CTX_set1_prefix(SSL_CONF_CTX *cctx, const char *pre);
  2600	
  2601	void SSL_CONF_CTX_set_ssl(SSL_CONF_CTX *cctx, SSL *ssl);
  2602	void SSL_CONF_CTX_set_ssl_ctx(SSL_CONF_CTX *cctx, SSL_CTX *ctx);
  2603	
  2604	__owur int SSL_CONF_cmd(SSL_CONF_CTX *cctx, const char *cmd, const char *value);
  2605	__owur int SSL_CONF_cmd_argv(SSL_CONF_CTX *cctx, int *pargc, char ***pargv);
  2606	__owur int SSL_CONF_cmd_value_type(SSL_CONF_CTX *cctx, const char *cmd);
  2607	
  2608	void SSL_add_ssl_module(void);
  2609	int SSL_config(SSL *s, const char *name);
  2610	int SSL_CTX_config(SSL_CTX *ctx, const char *name);
  2611	
  2612	# ifndef OPENSSL_NO_SSL_TRACE
  2613	void SSL_trace(int write_p, int version, int content_type,
  2614	               const void *buf, size_t len, SSL *ssl, void *arg);
  2615	# endif
  2616	
  2617	# ifndef OPENSSL_NO_SOCK
  2618	int DTLSv1_listen(SSL *s, BIO_ADDR *client);
  2619	# endif
  2620	
  2621	# ifndef OPENSSL_NO_CT
  2622	
  2623	/*
  2624	 * A callback for verifying that the received SCTs are sufficient.
  2625	 * Expected to return 1 if they are sufficient, otherwise 0.
  2626	 * May return a negative integer if an error occurs.
  2627	 * A connection should be aborted if the SCTs are deemed insufficient.
  2628	 */
  2629	typedef int (*ssl_ct_validation_cb)(const CT_POLICY_EVAL_CTX *ctx,
  2630	                                    const STACK_OF(SCT) *scts, void *arg);
  2631	
  2632	/*
  2633	 * Sets a |callback| that is invoked upon receipt of ServerHelloDone to validate
  2634	 * the received SCTs.
  2635	 * If the callback returns a non-positive result, the connection is terminated.
  2636	 * Call this function before beginning a handshake.
  2637	 * If a NULL |callback| is provided, SCT validation is disabled.
  2638	 * |arg| is arbitrary userdata that will be passed to the callback whenever it
  2639	 * is invoked. Ownership of |arg| remains with the caller.
  2640	 *
  2641	 * NOTE: A side-effect of setting a CT callback is that an OCSP stapled response
  2642	 *       will be requested.
  2643	 */
  2644	int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
  2645	                                   void *arg);
  2646	int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
  2647	                                       ssl_ct_validation_cb callback,
  2648	                                       void *arg);
  2649	#define SSL_disable_ct(s) \
  2650	        ((void) SSL_set_validation_callback((s), NULL, NULL))
  2651	#define SSL_CTX_disable_ct(ctx) \
  2652	        ((void) SSL_CTX_set_validation_callback((ctx), NULL, NULL))
  2653	
  2654	/*
  2655	 * The validation type enumerates the available behaviours of the built-in SSL
  2656	 * CT validation callback selected via SSL_enable_ct() and SSL_CTX_enable_ct().
  2657	 * The underlying callback is a static function in libssl.
  2658	 */
  2659	enum {
  2660	    SSL_CT_VALIDATION_PERMISSIVE = 0,
  2661	    SSL_CT_VALIDATION_STRICT
  2662	};
  2663	
  2664	/*
  2665	 * Enable CT by setting up a callback that implements one of the built-in
  2666	 * validation variants.  The SSL_CT_VALIDATION_PERMISSIVE variant always
  2667	 * continues the handshake, the application can make appropriate decisions at
  2668	 * handshake completion.  The SSL_CT_VALIDATION_STRICT variant requires at
  2669	 * least one valid SCT, or else handshake termination will be requested.  The
  2670	 * handshake may continue anyway if SSL_VERIFY_NONE is in effect.
  2671	 */
  2672	int SSL_enable_ct(SSL *s, int validation_mode);
  2673	int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode);
  2674	
  2675	/*
  2676	 * Report whether a non-NULL callback is enabled.
  2677	 */
  2678	int SSL_ct_is_enabled(const SSL *s);
  2679	int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx);
  2680	
  2681	/* Gets the SCTs received from a connection */
  2682	const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s);
  2683	
  2684	/*
  2685	 * Loads the CT log list from the default location.
  2686	 * If a CTLOG_STORE has previously been set using SSL_CTX_set_ctlog_store,
  2687	 * the log information loaded from this file will be appended to the
  2688	 * CTLOG_STORE.
  2689	 * Returns 1 on success, 0 otherwise.
  2690	 */
  2691	int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx);
  2692	
  2693	/*
  2694	 * Loads the CT log list from the specified file path.
  2695	 * If a CTLOG_STORE has previously been set using SSL_CTX_set_ctlog_store,
  2696	 * the log information loaded from this file will be appended to the
  2697	 * CTLOG_STORE.
  2698	 * Returns 1 on success, 0 otherwise.
  2699	 */
  2700	int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path);
  2701	
  2702	/*
  2703	 * Sets the CT log list used by all SSL connections created from this SSL_CTX.
  2704	 * Ownership of the CTLOG_STORE is transferred to the SSL_CTX.
  2705	 */
  2706	void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE *logs);
  2707	
  2708	/*
  2709	 * Gets the CT log list used by all SSL connections created from this SSL_CTX.
  2710	 * This will be NULL unless one of the following functions has been called:
  2711	 * - SSL_CTX_set_default_ctlog_list_file
  2712	 * - SSL_CTX_set_ctlog_list_file
  2713	 * - SSL_CTX_set_ctlog_store
  2714	 */
  2715	const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx);
  2716	
  2717	# endif /* OPENSSL_NO_CT */
  2718	
  2719	/* What the "other" parameter contains in security callback */
  2720	/* Mask for type */
  2721	# define SSL_SECOP_OTHER_TYPE    0xffff0000
  2722	# define SSL_SECOP_OTHER_NONE    0
  2723	# define SSL_SECOP_OTHER_CIPHER  (1 << 16)
  2724	# define SSL_SECOP_OTHER_CURVE   (2 << 16)
  2725	# define SSL_SECOP_OTHER_DH      (3 << 16)
  2726	# define SSL_SECOP_OTHER_PKEY    (4 << 16)
  2727	# define SSL_SECOP_OTHER_SIGALG  (5 << 16)
  2728	# define SSL_SECOP_OTHER_CERT    (6 << 16)
  2729	
  2730	/* Indicated operation refers to peer key or certificate */
  2731	# define SSL_SECOP_PEER          0x1000
  2732	
  2733	/* Values for "op" parameter in security callback */
  2734	
  2735	/* Called to filter ciphers */
  2736	/* Ciphers client supports */
  2737	# define SSL_SECOP_CIPHER_SUPPORTED      (1 | SSL_SECOP_OTHER_CIPHER)
  2738	/* Cipher shared by client/server */
  2739	# define SSL_SECOP_CIPHER_SHARED         (2 | SSL_SECOP_OTHER_CIPHER)
  2740	/* Sanity check of cipher server selects */
  2741	# define SSL_SECOP_CIPHER_CHECK          (3 | SSL_SECOP_OTHER_CIPHER)
  2742	/* Curves supported by client */
  2743	# define SSL_SECOP_CURVE_SUPPORTED       (4 | SSL_SECOP_OTHER_CURVE)
  2744	/* Curves shared by client/server */
  2745	# define SSL_SECOP_CURVE_SHARED          (5 | SSL_SECOP_OTHER_CURVE)
  2746	/* Sanity check of curve server selects */
  2747	# define SSL_SECOP_CURVE_CHECK           (6 | SSL_SECOP_OTHER_CURVE)
  2748	/* Temporary DH key */
  2749	# define SSL_SECOP_TMP_DH                (7 | SSL_SECOP_OTHER_PKEY)
  2750	/* SSL/TLS version */
  2751	# define SSL_SECOP_VERSION               (9 | SSL_SECOP_OTHER_NONE)
  2752	/* Session tickets */
  2753	# define SSL_SECOP_TICKET                (10 | SSL_SECOP_OTHER_NONE)
  2754	/* Supported signature algorithms sent to peer */
  2755	# define SSL_SECOP_SIGALG_SUPPORTED      (11 | SSL_SECOP_OTHER_SIGALG)
  2756	/* Shared signature algorithm */
  2757	# define SSL_SECOP_SIGALG_SHARED         (12 | SSL_SECOP_OTHER_SIGALG)
  2758	/* Sanity check signature algorithm allowed */
  2759	# define SSL_SECOP_SIGALG_CHECK          (13 | SSL_SECOP_OTHER_SIGALG)
  2760	/* Used to get mask of supported public key signature algorithms */
  2761	# define SSL_SECOP_SIGALG_MASK           (14 | SSL_SECOP_OTHER_SIGALG)
  2762	/* Use to see if compression is allowed */
  2763	# define SSL_SECOP_COMPRESSION           (15 | SSL_SECOP_OTHER_NONE)
  2764	/* EE key in certificate */
  2765	# define SSL_SECOP_EE_KEY                (16 | SSL_SECOP_OTHER_CERT)
  2766	/* CA key in certificate */
  2767	# define SSL_SECOP_CA_KEY                (17 | SSL_SECOP_OTHER_CERT)
  2768	/* CA digest algorithm in certificate */
  2769	# define SSL_SECOP_CA_MD                 (18 | SSL_SECOP_OTHER_CERT)
  2770	/* Peer EE key in certificate */
  2771	# define SSL_SECOP_PEER_EE_KEY           (SSL_SECOP_EE_KEY | SSL_SECOP_PEER)
  2772	/* Peer CA key in certificate */
  2773	# define SSL_SECOP_PEER_CA_KEY           (SSL_SECOP_CA_KEY | SSL_SECOP_PEER)
  2774	/* Peer CA digest algorithm in certificate */
  2775	# define SSL_SECOP_PEER_CA_MD            (SSL_SECOP_CA_MD | SSL_SECOP_PEER)
  2776	
  2777	void SSL_set_security_level(SSL *s, int level);
  2778	__owur int SSL_get_security_level(const SSL *s);
  2779	void SSL_set_security_callback(SSL *s,
  2780	                               int (*cb) (const SSL *s, const SSL_CTX *ctx,
  2781	                                          int op, int bits, int nid,
  2782	                                          void *other, void *ex));
  2783	int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
  2784	                                                const SSL_CTX *ctx, int op,
  2785	                                                int bits, int nid, void *other,
  2786	                                                void *ex);
  2787	void SSL_set0_security_ex_data(SSL *s, void *ex);
  2788	__owur void *SSL_get0_security_ex_data(const SSL *s);
  2789	
  2790	void SSL_CTX_set_security_level(SSL_CTX *ctx, int level);
  2791	__owur int SSL_CTX_get_security_level(const SSL_CTX *ctx);
  2792	void SSL_CTX_set_security_callback(SSL_CTX *ctx,
  2793	                                   int (*cb) (const SSL *s, const SSL_CTX *ctx,
  2794	                                              int op, int bits, int nid,
  2795	                                              void *other, void *ex));
  2796	int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
  2797	                                                          const SSL_CTX *ctx,
  2798	                                                          int op, int bits,
  2799	                                                          int nid,
  2800	                                                          void *other,
  2801	                                                          void *ex);
  2802	void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex);
  2803	__owur void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx);
  2804	
  2805	/* OPENSSL_INIT flag 0x010000 reserved for internal use */
  2806	# define OPENSSL_INIT_NO_LOAD_SSL_STRINGS    0x00100000L
  2807	# define OPENSSL_INIT_LOAD_SSL_STRINGS       0x00200000L
  2808	
  2809	# define OPENSSL_INIT_SSL_DEFAULT \
  2810	        (OPENSSL_INIT_LOAD_SSL_STRINGS | OPENSSL_INIT_LOAD_CRYPTO_STRINGS)
  2811	
  2812	int OPENSSL_init_ssl(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings);
  2813	
  2814	# ifndef OPENSSL_NO_UNIT_TEST
  2815	__owur const struct openssl_ssl_test_functions *SSL_test_functions(void);
  2816	# endif
  2817	
  2818	__owur int SSL_free_buffers(SSL *ssl);
  2819	__owur int SSL_alloc_buffers(SSL *ssl);
  2820	
  2821	/* Status codes passed to the decrypt session ticket callback. Some of these
  2822	 * are for internal use only and are never passed to the callback. */
  2823	typedef int SSL_TICKET_STATUS;
  2824	
  2825	/* Support for ticket appdata */
  2826	/* fatal error, malloc failure */
  2827	# define SSL_TICKET_FATAL_ERR_MALLOC 0
  2828	/* fatal error, either from parsing or decrypting the ticket */
  2829	# define SSL_TICKET_FATAL_ERR_OTHER  1
  2830	/* No ticket present */
  2831	# define SSL_TICKET_NONE             2
  2832	/* Empty ticket present */
  2833	# define SSL_TICKET_EMPTY            3
  2834	/* the ticket couldn't be decrypted */
  2835	# define SSL_TICKET_NO_DECRYPT       4
  2836	/* a ticket was successfully decrypted */
  2837	# define SSL_TICKET_SUCCESS          5
  2838	/* same as above but the ticket needs to be renewed */
  2839	# define SSL_TICKET_SUCCESS_RENEW    6
  2840	
  2841	/* Return codes for the decrypt session ticket callback */
  2842	typedef int SSL_TICKET_RETURN;
  2843	
  2844	/* An error occurred */
  2845	#define SSL_TICKET_RETURN_ABORT             0
  2846	/* Do not use the ticket, do not send a renewed ticket to the client */
  2847	#define SSL_TICKET_RETURN_IGNORE            1
  2848	/* Do not use the ticket, send a renewed ticket to the client */
  2849	#define SSL_TICKET_RETURN_IGNORE_RENEW      2
  2850	/* Use the ticket, do not send a renewed ticket to the client */
  2851	#define SSL_TICKET_RETURN_USE               3
  2852	/* Use the ticket, send a renewed ticket to the client */
  2853	#define SSL_TICKET_RETURN_USE_RENEW         4
  2854	
  2855	typedef int (*SSL_CTX_generate_session_ticket_fn)(SSL *s, void *arg);
  2856	typedef SSL_TICKET_RETURN (*SSL_CTX_decrypt_session_ticket_fn)(SSL *s, SSL_SESSION *ss,
  2857	                                                               const unsigned char *keyname,
  2858	                                                               size_t keyname_length,
  2859	                                                               SSL_TICKET_STATUS status,
  2860	                                                               void *arg);
  2861	int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
  2862	                                  SSL_CTX_generate_session_ticket_fn gen_cb,
  2863	                                  SSL_CTX_decrypt_session_ticket_fn dec_cb,
  2864	                                  void *arg);
  2865	int SSL_SESSION_set1_ticket_appdata(SSL_SESSION *ss, const void *data, size_t len);
  2866	int SSL_SESSION_get0_ticket_appdata(SSL_SESSION *ss, void **data, size_t *len);
  2867	
  2868	typedef unsigned int (*DTLS_timer_cb)(SSL *s, unsigned int timer_us);
  2869	
  2870	void DTLS_set_timer_cb(SSL *s, DTLS_timer_cb cb);
  2871	
  2872	
  2873	typedef int (*SSL_allow_early_data_cb_fn)(SSL *s, void *arg);
  2874	void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx,
  2875	                                     SSL_allow_early_data_cb_fn cb,
  2876	                                     void *arg);
  2877	void SSL_set_allow_early_data_cb(SSL *s,
  2878	                                 SSL_allow_early_data_cb_fn cb,
  2879	                                 void *arg);
  2880	
  2881	/* store the default cipher strings inside the library */
  2882	const char *OSSL_default_cipher_list(void);
  2883	const char *OSSL_default_ciphersuites(void);
  2884	
  2885	/* RFC8879 Certificate compression APIs */
  2886	
  2887	int SSL_CTX_compress_certs(SSL_CTX *ctx, int alg);
  2888	int SSL_compress_certs(SSL *ssl, int alg);
  2889	
  2890	int SSL_CTX_set1_cert_comp_preference(SSL_CTX *ctx, int *algs, size_t len);
  2891	int SSL_set1_cert_comp_preference(SSL *ssl, int *algs, size_t len);
  2892	
  2893	int SSL_CTX_set1_compressed_cert(SSL_CTX *ctx, int algorithm, unsigned char *comp_data,
  2894	                                size_t comp_length, size_t orig_length);
  2895	int SSL_set1_compressed_cert(SSL *ssl, int algorithm, unsigned char *comp_data,
  2896	                            size_t comp_length, size_t orig_length);
  2897	size_t SSL_CTX_get1_compressed_cert(SSL_CTX *ctx, int alg, unsigned char **data, size_t *orig_len);
  2898	size_t SSL_get1_compressed_cert(SSL *ssl, int alg, unsigned char **data, size_t *orig_len);
  2899	
  2900	__owur int SSL_add_expected_rpk(SSL *s, EVP_PKEY *rpk);
  2901	__owur EVP_PKEY *SSL_get0_peer_rpk(const SSL *s);
  2902	__owur EVP_PKEY *SSL_SESSION_get0_peer_rpk(SSL_SESSION *s);
  2903	__owur int SSL_get_negotiated_client_cert_type(const SSL *s);
  2904	__owur int SSL_get_negotiated_server_cert_type(const SSL *s);
  2905	
  2906	__owur int SSL_set1_client_cert_type(SSL *s, const unsigned char *val, size_t len);
  2907	__owur int SSL_set1_server_cert_type(SSL *s, const unsigned char *val, size_t len);
  2908	__owur int SSL_CTX_set1_client_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len);
  2909	__owur int SSL_CTX_set1_server_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len);
  2910	__owur int SSL_get0_client_cert_type(const SSL *s, unsigned char **t, size_t *len);
  2911	__owur int SSL_get0_server_cert_type(const SSL *s, unsigned char **t, size_t *len);
  2912	__owur int SSL_CTX_get0_client_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len);
  2913	__owur int SSL_CTX_get0_server_cert_type(const SSL_CTX *s, unsigned char **t, size_t *len);
  2914	
  2915	/*
  2916	 * Protection level. For <= TLSv1.2 only "NONE" and "APPLICATION" are used.
  2917	 */
  2918	# define OSSL_RECORD_PROTECTION_LEVEL_NONE        0
  2919	# define OSSL_RECORD_PROTECTION_LEVEL_EARLY       1
  2920	# define OSSL_RECORD_PROTECTION_LEVEL_HANDSHAKE   2
  2921	# define OSSL_RECORD_PROTECTION_LEVEL_APPLICATION 3
  2922	
  2923	int SSL_set_quic_tls_cbs(SSL *s, const OSSL_DISPATCH *qtdis, void *arg);
  2924	int SSL_set_quic_tls_transport_params(SSL *s,
  2925	                                      const unsigned char *params,
  2926	                                      size_t params_len);
  2927	
  2928	int SSL_set_quic_tls_early_data_enabled(SSL *s, int enabled);
  2929	
  2930	# ifdef  __cplusplus
  2931	}
  2932	# endif
  2933	#endif