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 /*
  * WARNING: do not edit!
  * Generated by Makefile from include/openssl/ssl.h.in
  *
  * Copyright 1995-2024 The OpenSSL Project Authors. All Rights Reserved.
  * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
  * Copyright 2005 Nokia. All rights reserved.
  *
  * Licensed under the Apache License 2.0 (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
  * in the file LICENSE in the source distribution or at
  * https://www.openssl.org/source/license.html
  */
 
 
 
 #ifndef OPENSSL_SSL_H
 # define OPENSSL_SSL_H
 # pragma once
 
 # include <openssl/macros.h>
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 #  define HEADER_SSL_H
 # endif
 
 # include <openssl/e_os2.h>
 # include <openssl/e_ostime.h>
 # include <openssl/opensslconf.h>
 # include <openssl/comp.h>
 # include <openssl/bio.h>
 # ifndef OPENSSL_NO_DEPRECATED_1_1_0
 #  include <openssl/x509.h>
 #  include <openssl/crypto.h>
 #  include <openssl/buffer.h>
 # endif
 # include <openssl/lhash.h>
 # include <openssl/pem.h>
 # include <openssl/hmac.h>
 # include <openssl/async.h>
 
 # include <openssl/safestack.h>
 # include <openssl/symhacks.h>
 # include <openssl/ct.h>
 # include <openssl/sslerr.h>
 # include <openssl/prov_ssl.h>
 # ifndef OPENSSL_NO_STDIO
 #  include <stdio.h>
 # endif
 
 #ifdef  __cplusplus
 extern "C" {
 #endif
 
 /* OpenSSL version number for ASN.1 encoding of the session information */
 /*-
  * Version 0 - initial version
  * Version 1 - added the optional peer certificate
  */
 # define SSL_SESSION_ASN1_VERSION 0x0001
 
 # define SSL_MAX_SSL_SESSION_ID_LENGTH           32
 # define SSL_MAX_SID_CTX_LENGTH                  32
 
 # define SSL_MIN_RSA_MODULUS_LENGTH_IN_BYTES     (512/8)
 # define SSL_MAX_KEY_ARG_LENGTH                  8
 /* SSL_MAX_MASTER_KEY_LENGTH is defined in prov_ssl.h */
 
 /* The maximum number of encrypt/decrypt pipelines we can support */
 # define SSL_MAX_PIPELINES  32
 
 /* text strings for the ciphers */
 
 /* These are used to specify which ciphers to use and not to use */
 
 # define SSL_TXT_LOW             "LOW"
 # define SSL_TXT_MEDIUM          "MEDIUM"
 # define SSL_TXT_HIGH            "HIGH"
 # define SSL_TXT_FIPS            "FIPS"
 
 # define SSL_TXT_aNULL           "aNULL"
 # define SSL_TXT_eNULL           "eNULL"
 # define SSL_TXT_NULL            "NULL"
 
 # define SSL_TXT_kRSA            "kRSA"
 # define SSL_TXT_kDHr            "kDHr"/* this cipher class has been removed */
 # define SSL_TXT_kDHd            "kDHd"/* this cipher class has been removed */
 # define SSL_TXT_kDH             "kDH"/* this cipher class has been removed */
 # define SSL_TXT_kEDH            "kEDH"/* alias for kDHE */
 # define SSL_TXT_kDHE            "kDHE"
 # define SSL_TXT_kECDHr          "kECDHr"/* this cipher class has been removed */
 # define SSL_TXT_kECDHe          "kECDHe"/* this cipher class has been removed */
 # define SSL_TXT_kECDH           "kECDH"/* this cipher class has been removed */
 # define SSL_TXT_kEECDH          "kEECDH"/* alias for kECDHE */
 # define SSL_TXT_kECDHE          "kECDHE"
 # define SSL_TXT_kPSK            "kPSK"
 # define SSL_TXT_kRSAPSK         "kRSAPSK"
 # define SSL_TXT_kECDHEPSK       "kECDHEPSK"
 # define SSL_TXT_kDHEPSK         "kDHEPSK"
 # define SSL_TXT_kGOST           "kGOST"
 # define SSL_TXT_kGOST18         "kGOST18"
 # define SSL_TXT_kSRP            "kSRP"
 
 # define SSL_TXT_aRSA            "aRSA"
 # define SSL_TXT_aDSS            "aDSS"
 # define SSL_TXT_aDH             "aDH"/* this cipher class has been removed */
 # define SSL_TXT_aECDH           "aECDH"/* this cipher class has been removed */
 # define SSL_TXT_aECDSA          "aECDSA"
 # define SSL_TXT_aPSK            "aPSK"
 # define SSL_TXT_aGOST94         "aGOST94"
 # define SSL_TXT_aGOST01         "aGOST01"
 # define SSL_TXT_aGOST12         "aGOST12"
 # define SSL_TXT_aGOST           "aGOST"
 # define SSL_TXT_aSRP            "aSRP"
 
 # define SSL_TXT_DSS             "DSS"
 # define SSL_TXT_DH              "DH"
 # define SSL_TXT_DHE             "DHE"/* same as "kDHE:-ADH" */
 # define SSL_TXT_EDH             "EDH"/* alias for DHE */
 # define SSL_TXT_ADH             "ADH"
 # define SSL_TXT_RSA             "RSA"
 # define SSL_TXT_ECDH            "ECDH"
 # define SSL_TXT_EECDH           "EECDH"/* alias for ECDHE" */
 # define SSL_TXT_ECDHE           "ECDHE"/* same as "kECDHE:-AECDH" */
 # define SSL_TXT_AECDH           "AECDH"
 # define SSL_TXT_ECDSA           "ECDSA"
 # define SSL_TXT_PSK             "PSK"
 # define SSL_TXT_SRP             "SRP"
 
 # define SSL_TXT_DES             "DES"
 # define SSL_TXT_3DES            "3DES"
 # define SSL_TXT_RC4             "RC4"
 # define SSL_TXT_RC2             "RC2"
 # define SSL_TXT_IDEA            "IDEA"
 # define SSL_TXT_SEED            "SEED"
 # define SSL_TXT_AES128          "AES128"
 # define SSL_TXT_AES256          "AES256"
 # define SSL_TXT_AES             "AES"
 # define SSL_TXT_AES_GCM         "AESGCM"
 # define SSL_TXT_AES_CCM         "AESCCM"
 # define SSL_TXT_AES_CCM_8       "AESCCM8"
 # define SSL_TXT_CAMELLIA128     "CAMELLIA128"
 # define SSL_TXT_CAMELLIA256     "CAMELLIA256"
 # define SSL_TXT_CAMELLIA        "CAMELLIA"
 # define SSL_TXT_CHACHA20        "CHACHA20"
 # define SSL_TXT_GOST            "GOST89"
 # define SSL_TXT_ARIA            "ARIA"
 # define SSL_TXT_ARIA_GCM        "ARIAGCM"
 # define SSL_TXT_ARIA128         "ARIA128"
 # define SSL_TXT_ARIA256         "ARIA256"
 # define SSL_TXT_GOST2012_GOST8912_GOST8912 "GOST2012-GOST8912-GOST8912"
 # define SSL_TXT_CBC             "CBC"
 
 # define SSL_TXT_MD5             "MD5"
 # define SSL_TXT_SHA1            "SHA1"
 # define SSL_TXT_SHA             "SHA"/* same as "SHA1" */
 # define SSL_TXT_GOST94          "GOST94"
 # define SSL_TXT_GOST89MAC       "GOST89MAC"
 # define SSL_TXT_GOST12          "GOST12"
 # define SSL_TXT_GOST89MAC12     "GOST89MAC12"
 # define SSL_TXT_SHA256          "SHA256"
 # define SSL_TXT_SHA384          "SHA384"
 
 # define SSL_TXT_SSLV3           "SSLv3"
 # define SSL_TXT_TLSV1           "TLSv1"
 # define SSL_TXT_TLSV1_1         "TLSv1.1"
 # define SSL_TXT_TLSV1_2         "TLSv1.2"
 
 # define SSL_TXT_ALL             "ALL"
 
 /*-
  * COMPLEMENTOF* definitions. These identifiers are used to (de-select)
  * ciphers normally not being used.
  * Example: "RC4" will activate all ciphers using RC4 including ciphers
  * without authentication, which would normally disabled by DEFAULT (due
  * the "!ADH" being part of default). Therefore "RC4:!COMPLEMENTOFDEFAULT"
  * will make sure that it is also disabled in the specific selection.
  * COMPLEMENTOF* identifiers are portable between version, as adjustments
  * to the default cipher setup will also be included here.
  *
  * COMPLEMENTOFDEFAULT does not experience the same special treatment that
  * DEFAULT gets, as only selection is being done and no sorting as needed
  * for DEFAULT.
  */
 # define SSL_TXT_CMPALL          "COMPLEMENTOFALL"
 # define SSL_TXT_CMPDEF          "COMPLEMENTOFDEFAULT"
 
 /*
  * The following cipher list is used by default. It also is substituted when
  * an application-defined cipher list string starts with 'DEFAULT'.
  * This applies to ciphersuites for TLSv1.2 and below.
  * DEPRECATED IN 3.0.0, in favor of OSSL_default_cipher_list()
  * Update both macro and function simultaneously
  */
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 #  define SSL_DEFAULT_CIPHER_LIST "ALL:!COMPLEMENTOFDEFAULT:!eNULL"
 /*
  * This is the default set of TLSv1.3 ciphersuites
  * DEPRECATED IN 3.0.0, in favor of OSSL_default_ciphersuites()
  * Update both macro and function simultaneously
  */
 #  define TLS_DEFAULT_CIPHERSUITES "TLS_AES_256_GCM_SHA384:" \
                                    "TLS_CHACHA20_POLY1305_SHA256:" \
                                    "TLS_AES_128_GCM_SHA256"
 # endif
 /*
  * As of OpenSSL 1.0.0, ssl_create_cipher_list() in ssl/ssl_ciph.c always
  * starts with a reasonable order, and all we have to do for DEFAULT is
  * throwing out anonymous and unencrypted ciphersuites! (The latter are not
  * actually enabled by ALL, but "ALL:RSA" would enable some of them.)
  */
 
 /* Used in SSL_set_shutdown()/SSL_get_shutdown(); */
 # define SSL_SENT_SHUTDOWN       1
 # define SSL_RECEIVED_SHUTDOWN   2
 
 #ifdef __cplusplus
 }
 #endif
 
 #ifdef  __cplusplus
 extern "C" {
 #endif
 
 # define SSL_FILETYPE_ASN1       X509_FILETYPE_ASN1
 # define SSL_FILETYPE_PEM        X509_FILETYPE_PEM
 
 /*
  * This is needed to stop compilers complaining about the 'struct ssl_st *'
  * function parameters used to prototype callbacks in SSL_CTX.
  */
 typedef struct ssl_st *ssl_crock_st;
 typedef struct tls_session_ticket_ext_st TLS_SESSION_TICKET_EXT;
 typedef struct ssl_method_st SSL_METHOD;
 typedef struct ssl_cipher_st SSL_CIPHER;
 typedef struct ssl_session_st SSL_SESSION;
 typedef struct tls_sigalgs_st TLS_SIGALGS;
 typedef struct ssl_conf_ctx_st SSL_CONF_CTX;
 
 STACK_OF(SSL_CIPHER);
 
 /* SRTP protection profiles for use with the use_srtp extension (RFC 5764)*/
 typedef struct srtp_protection_profile_st {
     const char *name;
     unsigned long id;
 } SRTP_PROTECTION_PROFILE;
 SKM_DEFINE_STACK_OF_INTERNAL(SRTP_PROTECTION_PROFILE, SRTP_PROTECTION_PROFILE, SRTP_PROTECTION_PROFILE)
 #define sk_SRTP_PROTECTION_PROFILE_num(sk) OPENSSL_sk_num(ossl_check_const_SRTP_PROTECTION_PROFILE_sk_type(sk))
 #define sk_SRTP_PROTECTION_PROFILE_value(sk, idx) ((SRTP_PROTECTION_PROFILE *)OPENSSL_sk_value(ossl_check_const_SRTP_PROTECTION_PROFILE_sk_type(sk), (idx)))
 #define sk_SRTP_PROTECTION_PROFILE_new(cmp) ((STACK_OF(SRTP_PROTECTION_PROFILE) *)OPENSSL_sk_new(ossl_check_SRTP_PROTECTION_PROFILE_compfunc_type(cmp)))
 #define sk_SRTP_PROTECTION_PROFILE_new_null() ((STACK_OF(SRTP_PROTECTION_PROFILE) *)OPENSSL_sk_new_null())
 #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)))
 #define sk_SRTP_PROTECTION_PROFILE_reserve(sk, n) OPENSSL_sk_reserve(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk), (n))
 #define sk_SRTP_PROTECTION_PROFILE_free(sk) OPENSSL_sk_free(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk))
 #define sk_SRTP_PROTECTION_PROFILE_zero(sk) OPENSSL_sk_zero(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk))
 #define sk_SRTP_PROTECTION_PROFILE_delete(sk, i) ((SRTP_PROTECTION_PROFILE *)OPENSSL_sk_delete(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk), (i)))
 #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)))
 #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))
 #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))
 #define sk_SRTP_PROTECTION_PROFILE_pop(sk) ((SRTP_PROTECTION_PROFILE *)OPENSSL_sk_pop(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk)))
 #define sk_SRTP_PROTECTION_PROFILE_shift(sk) ((SRTP_PROTECTION_PROFILE *)OPENSSL_sk_shift(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk)))
 #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))
 #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))
 #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)))
 #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))
 #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))
 #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)
 #define sk_SRTP_PROTECTION_PROFILE_sort(sk) OPENSSL_sk_sort(ossl_check_SRTP_PROTECTION_PROFILE_sk_type(sk))
 #define sk_SRTP_PROTECTION_PROFILE_is_sorted(sk) OPENSSL_sk_is_sorted(ossl_check_const_SRTP_PROTECTION_PROFILE_sk_type(sk))
 #define sk_SRTP_PROTECTION_PROFILE_dup(sk) ((STACK_OF(SRTP_PROTECTION_PROFILE) *)OPENSSL_sk_dup(ossl_check_const_SRTP_PROTECTION_PROFILE_sk_type(sk)))
 #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)))
 #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)))
 
 
 
 typedef int (*tls_session_ticket_ext_cb_fn)(SSL *s, const unsigned char *data,
                                             int len, void *arg);
 typedef int (*tls_session_secret_cb_fn)(SSL *s, void *secret, int *secret_len,
                                         STACK_OF(SSL_CIPHER) *peer_ciphers,
                                         const SSL_CIPHER **cipher, void *arg);
 
 /* Extension context codes */
 /* This extension is only allowed in TLS */
 #define SSL_EXT_TLS_ONLY                        0x00001
 /* This extension is only allowed in DTLS */
 #define SSL_EXT_DTLS_ONLY                       0x00002
 /* Some extensions may be allowed in DTLS but we don't implement them for it */
 #define SSL_EXT_TLS_IMPLEMENTATION_ONLY         0x00004
 /* Most extensions are not defined for SSLv3 but EXT_TYPE_renegotiate is */
 #define SSL_EXT_SSL3_ALLOWED                    0x00008
 /* Extension is only defined for TLS1.2 and below */
 #define SSL_EXT_TLS1_2_AND_BELOW_ONLY           0x00010
 /* Extension is only defined for TLS1.3 and above */
 #define SSL_EXT_TLS1_3_ONLY                     0x00020
 /* Ignore this extension during parsing if we are resuming */
 #define SSL_EXT_IGNORE_ON_RESUMPTION            0x00040
 #define SSL_EXT_CLIENT_HELLO                    0x00080
 /* Really means TLS1.2 or below */
 #define SSL_EXT_TLS1_2_SERVER_HELLO             0x00100
 #define SSL_EXT_TLS1_3_SERVER_HELLO             0x00200
 #define SSL_EXT_TLS1_3_ENCRYPTED_EXTENSIONS     0x00400
 #define SSL_EXT_TLS1_3_HELLO_RETRY_REQUEST      0x00800
 #define SSL_EXT_TLS1_3_CERTIFICATE              0x01000
 #define SSL_EXT_TLS1_3_NEW_SESSION_TICKET       0x02000
 #define SSL_EXT_TLS1_3_CERTIFICATE_REQUEST      0x04000
 #define SSL_EXT_TLS1_3_CERTIFICATE_COMPRESSION  0x08000
 /* When sending a raw public key in a certificate message */
 #define SSL_EXT_TLS1_3_RAW_PUBLIC_KEY           0x10000
 
 /* Typedefs for handling custom extensions */
 
 typedef int (*custom_ext_add_cb)(SSL *s, unsigned int ext_type,
                                  const unsigned char **out, size_t *outlen,
                                  int *al, void *add_arg);
 
 typedef void (*custom_ext_free_cb)(SSL *s, unsigned int ext_type,
                                    const unsigned char *out, void *add_arg);
 
 typedef int (*custom_ext_parse_cb)(SSL *s, unsigned int ext_type,
                                    const unsigned char *in, size_t inlen,
                                    int *al, void *parse_arg);
 
 
 typedef int (*SSL_custom_ext_add_cb_ex)(SSL *s, unsigned int ext_type,
                                         unsigned int context,
                                         const unsigned char **out,
                                         size_t *outlen, X509 *x,
                                         size_t chainidx,
                                         int *al, void *add_arg);
 
 typedef void (*SSL_custom_ext_free_cb_ex)(SSL *s, unsigned int ext_type,
                                           unsigned int context,
                                           const unsigned char *out,
                                           void *add_arg);
 
 typedef int (*SSL_custom_ext_parse_cb_ex)(SSL *s, unsigned int ext_type,
                                           unsigned int context,
                                           const unsigned char *in,
                                           size_t inlen, X509 *x,
                                           size_t chainidx,
                                           int *al, void *parse_arg);
 
 /* Typedef for verification callback */
 typedef int (*SSL_verify_cb)(int preverify_ok, X509_STORE_CTX *x509_ctx);
 
 /* Typedef for SSL async callback */
 typedef int (*SSL_async_callback_fn)(SSL *s, void *arg);
 
 #define SSL_OP_BIT(n)  ((uint64_t)1 << (uint64_t)n)
 
 /*
  * SSL/TLS connection options.
  */
     /* Disable Extended master secret */
 # define SSL_OP_NO_EXTENDED_MASTER_SECRET                SSL_OP_BIT(0)
     /* Cleanse plaintext copies of data delivered to the application */
 # define SSL_OP_CLEANSE_PLAINTEXT                        SSL_OP_BIT(1)
     /* Allow initial connection to servers that don't support RI */
 # define SSL_OP_LEGACY_SERVER_CONNECT                    SSL_OP_BIT(2)
     /* Enable support for Kernel TLS */
 # define SSL_OP_ENABLE_KTLS                              SSL_OP_BIT(3)
 # define SSL_OP_TLSEXT_PADDING                           SSL_OP_BIT(4)
 # define SSL_OP_SAFARI_ECDHE_ECDSA_BUG                   SSL_OP_BIT(6)
 # define SSL_OP_IGNORE_UNEXPECTED_EOF                    SSL_OP_BIT(7)
 # define SSL_OP_ALLOW_CLIENT_RENEGOTIATION               SSL_OP_BIT(8)
 # define SSL_OP_DISABLE_TLSEXT_CA_NAMES                  SSL_OP_BIT(9)
     /* In TLSv1.3 allow a non-(ec)dhe based kex_mode */
 # define SSL_OP_ALLOW_NO_DHE_KEX                         SSL_OP_BIT(10)
     /*
      * Disable SSL 3.0/TLS 1.0 CBC vulnerability workaround that was added
      * in OpenSSL 0.9.6d.  Usually (depending on the application protocol)
      * the workaround is not needed.  Unfortunately some broken SSL/TLS
      * implementations cannot handle it at all, which is why we include it
      * in SSL_OP_ALL. Added in 0.9.6e
      */
 # define SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS              SSL_OP_BIT(11)
     /* DTLS options */
 # define SSL_OP_NO_QUERY_MTU                             SSL_OP_BIT(12)
     /* Turn on Cookie Exchange (on relevant for servers) */
 # define SSL_OP_COOKIE_EXCHANGE                          SSL_OP_BIT(13)
     /* Don't use RFC4507 ticket extension */
 # define SSL_OP_NO_TICKET                                SSL_OP_BIT(14)
 # ifndef OPENSSL_NO_DTLS1_METHOD
     /*
      * Use Cisco's version identifier of DTLS_BAD_VER
      * (only with deprecated DTLSv1_client_method())
      */
 #  define SSL_OP_CISCO_ANYCONNECT                        SSL_OP_BIT(15)
 # endif
     /* As server, disallow session resumption on renegotiation */
 # define SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION   SSL_OP_BIT(16)
     /* Don't use compression even if supported */
 # define SSL_OP_NO_COMPRESSION                           SSL_OP_BIT(17)
     /* Permit unsafe legacy renegotiation */
 # define SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION        SSL_OP_BIT(18)
     /* Disable encrypt-then-mac */
 # define SSL_OP_NO_ENCRYPT_THEN_MAC                      SSL_OP_BIT(19)
     /*
      * Enable TLSv1.3 Compatibility mode. This is on by default. A future
      * version of OpenSSL may have this disabled by default.
      */
 # define SSL_OP_ENABLE_MIDDLEBOX_COMPAT                  SSL_OP_BIT(20)
     /*
      * Prioritize Chacha20Poly1305 when client does.
      * Modifies SSL_OP_CIPHER_SERVER_PREFERENCE
      */
 # define SSL_OP_PRIORITIZE_CHACHA                        SSL_OP_BIT(21)
     /*
      * Set on servers to choose the cipher according to server's preferences.
      */
 # define SSL_OP_CIPHER_SERVER_PREFERENCE                 SSL_OP_BIT(22)
     /*
      * If set, a server will allow a client to issue a SSLv3.0 version
      * number as latest version supported in the premaster secret, even when
      * TLSv1.0 (version 3.1) was announced in the client hello. Normally
      * this is forbidden to prevent version rollback attacks.
      */
 # define SSL_OP_TLS_ROLLBACK_BUG                         SSL_OP_BIT(23)
     /*
      * Switches off automatic TLSv1.3 anti-replay protection for early data.
      * This is a server-side option only (no effect on the client).
      */
 # define SSL_OP_NO_ANTI_REPLAY                           SSL_OP_BIT(24)
 # define SSL_OP_NO_SSLv3                                 SSL_OP_BIT(25)
 # define SSL_OP_NO_TLSv1                                 SSL_OP_BIT(26)
 # define SSL_OP_NO_TLSv1_2                               SSL_OP_BIT(27)
 # define SSL_OP_NO_TLSv1_1                               SSL_OP_BIT(28)
 # define SSL_OP_NO_TLSv1_3                               SSL_OP_BIT(29)
 # define SSL_OP_NO_DTLSv1                                SSL_OP_BIT(26)
 # define SSL_OP_NO_DTLSv1_2                              SSL_OP_BIT(27)
     /* Disallow all renegotiation */
 # define SSL_OP_NO_RENEGOTIATION                         SSL_OP_BIT(30)
     /*
      * Make server add server-hello extension from early version of
      * cryptopro draft, when GOST ciphersuite is negotiated. Required for
      * interoperability with CryptoPro CSP 3.x
      */
 # define SSL_OP_CRYPTOPRO_TLSEXT_BUG                     SSL_OP_BIT(31)
 /*
  * Disable RFC8879 certificate compression
  * SSL_OP_NO_TX_CERTIFICATE_COMPRESSION: don't send compressed certificates,
  *     and ignore the extension when received.
  * SSL_OP_NO_RX_CERTIFICATE_COMPRESSION: don't send the extension, and
  *     subsequently indicating that receiving is not supported
  */
 # define SSL_OP_NO_TX_CERTIFICATE_COMPRESSION            SSL_OP_BIT(32)
 # define SSL_OP_NO_RX_CERTIFICATE_COMPRESSION            SSL_OP_BIT(33)
     /* Enable KTLS TX zerocopy on Linux */
 # define SSL_OP_ENABLE_KTLS_TX_ZEROCOPY_SENDFILE         SSL_OP_BIT(34)
 
 #define SSL_OP_PREFER_NO_DHE_KEX                         SSL_OP_BIT(35)
 
 /*
  * Option "collections."
  */
 # define SSL_OP_NO_SSL_MASK \
         ( SSL_OP_NO_SSLv3 | SSL_OP_NO_TLSv1 | SSL_OP_NO_TLSv1_1 \
           | SSL_OP_NO_TLSv1_2 | SSL_OP_NO_TLSv1_3 )
 # define SSL_OP_NO_DTLS_MASK \
         ( SSL_OP_NO_DTLSv1 | SSL_OP_NO_DTLSv1_2 )
 
 /* Various bug workarounds that should be rather harmless. */
 # define SSL_OP_ALL \
         ( SSL_OP_CRYPTOPRO_TLSEXT_BUG | SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS \
           | SSL_OP_TLSEXT_PADDING | SSL_OP_SAFARI_ECDHE_ECDSA_BUG )
 
 /*
  * OBSOLETE OPTIONS retained for compatibility
  */
 
 # define SSL_OP_MICROSOFT_SESS_ID_BUG                    0x0
 # define SSL_OP_NETSCAPE_CHALLENGE_BUG                   0x0
 # define SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG         0x0
 # define SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG              0x0
 # define SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER               0x0
 # define SSL_OP_MSIE_SSLV2_RSA_PADDING                   0x0
 # define SSL_OP_SSLEAY_080_CLIENT_DH_BUG                 0x0
 # define SSL_OP_TLS_D5_BUG                               0x0
 # define SSL_OP_TLS_BLOCK_PADDING_BUG                    0x0
 # define SSL_OP_SINGLE_ECDH_USE                          0x0
 # define SSL_OP_SINGLE_DH_USE                            0x0
 # define SSL_OP_EPHEMERAL_RSA                            0x0
 # define SSL_OP_NO_SSLv2                                 0x0
 # define SSL_OP_PKCS1_CHECK_1                            0x0
 # define SSL_OP_PKCS1_CHECK_2                            0x0
 # define SSL_OP_NETSCAPE_CA_DN_BUG                       0x0
 # define SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG          0x0
 
 /*
  * Allow SSL_write(..., n) to return r with 0 < r < n (i.e. report success
  * when just a single record has been written):
  */
 # define SSL_MODE_ENABLE_PARTIAL_WRITE       0x00000001U
 /*
  * Make it possible to retry SSL_write() with changed buffer location (buffer
  * contents must stay the same!); this is not the default to avoid the
  * misconception that non-blocking SSL_write() behaves like non-blocking
  * write():
  */
 # define SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER 0x00000002U
 /*
  * Never bother the application with retries if the transport is blocking:
  */
 # define SSL_MODE_AUTO_RETRY 0x00000004U
 /* Don't attempt to automatically build certificate chain */
 # define SSL_MODE_NO_AUTO_CHAIN 0x00000008U
 /*
  * Save RAM by releasing read and write buffers when they're empty. (SSL3 and
  * TLS only.) Released buffers are freed.
  */
 # define SSL_MODE_RELEASE_BUFFERS 0x00000010U
 /*
  * Send the current time in the Random fields of the ClientHello and
  * ServerHello records for compatibility with hypothetical implementations
  * that require it.
  */
 # define SSL_MODE_SEND_CLIENTHELLO_TIME 0x00000020U
 # define SSL_MODE_SEND_SERVERHELLO_TIME 0x00000040U
 /*
  * Send TLS_FALLBACK_SCSV in the ClientHello. To be set only by applications
  * that reconnect with a downgraded protocol version; see
  * draft-ietf-tls-downgrade-scsv-00 for details. DO NOT ENABLE THIS if your
  * application attempts a normal handshake. Only use this in explicit
  * fallback retries, following the guidance in
  * draft-ietf-tls-downgrade-scsv-00.
  */
 # define SSL_MODE_SEND_FALLBACK_SCSV 0x00000080U
 /*
  * Support Asynchronous operation
  */
 # define SSL_MODE_ASYNC 0x00000100U
 
 /*
  * When using DTLS/SCTP, include the terminating zero in the label
  * used for computing the endpoint-pair shared secret. Required for
  * interoperability with implementations having this bug like these
  * older version of OpenSSL:
  * - OpenSSL 1.0.0 series
  * - OpenSSL 1.0.1 series
  * - OpenSSL 1.0.2 series
  * - OpenSSL 1.1.0 series
  * - OpenSSL 1.1.1 and 1.1.1a
  */
 # define SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG 0x00000400U
 
 /* Cert related flags */
 /*
  * Many implementations ignore some aspects of the TLS standards such as
  * enforcing certificate chain algorithms. When this is set we enforce them.
  */
 # define SSL_CERT_FLAG_TLS_STRICT                0x00000001U
 
 /* Suite B modes, takes same values as certificate verify flags */
 # define SSL_CERT_FLAG_SUITEB_128_LOS_ONLY       0x10000
 /* Suite B 192 bit only mode */
 # define SSL_CERT_FLAG_SUITEB_192_LOS            0x20000
 /* Suite B 128 bit mode allowing 192 bit algorithms */
 # define SSL_CERT_FLAG_SUITEB_128_LOS            0x30000
 
 /* Perform all sorts of protocol violations for testing purposes */
 # define SSL_CERT_FLAG_BROKEN_PROTOCOL           0x10000000
 
 /* Flags for building certificate chains */
 /* Treat any existing certificates as untrusted CAs */
 # define SSL_BUILD_CHAIN_FLAG_UNTRUSTED          0x1
 /* Don't include root CA in chain */
 # define SSL_BUILD_CHAIN_FLAG_NO_ROOT            0x2
 /* Just check certificates already there */
 # define SSL_BUILD_CHAIN_FLAG_CHECK              0x4
 /* Ignore verification errors */
 # define SSL_BUILD_CHAIN_FLAG_IGNORE_ERROR       0x8
 /* Clear verification errors from queue */
 # define SSL_BUILD_CHAIN_FLAG_CLEAR_ERROR        0x10
 
 /* Flags returned by SSL_check_chain */
 /* Certificate can be used with this session */
 # define CERT_PKEY_VALID         0x1
 /* Certificate can also be used for signing */
 # define CERT_PKEY_SIGN          0x2
 /* EE certificate signing algorithm OK */
 # define CERT_PKEY_EE_SIGNATURE  0x10
 /* CA signature algorithms OK */
 # define CERT_PKEY_CA_SIGNATURE  0x20
 /* EE certificate parameters OK */
 # define CERT_PKEY_EE_PARAM      0x40
 /* CA certificate parameters OK */
 # define CERT_PKEY_CA_PARAM      0x80
 /* Signing explicitly allowed as opposed to SHA1 fallback */
 # define CERT_PKEY_EXPLICIT_SIGN 0x100
 /* Client CA issuer names match (always set for server cert) */
 # define CERT_PKEY_ISSUER_NAME   0x200
 /* Cert type matches client types (always set for server cert) */
 # define CERT_PKEY_CERT_TYPE     0x400
 /* Cert chain suitable to Suite B */
 # define CERT_PKEY_SUITEB        0x800
 /* Cert pkey valid for raw public key use */
 # define CERT_PKEY_RPK           0x1000
 
 # define SSL_CONF_FLAG_CMDLINE           0x1
 # define SSL_CONF_FLAG_FILE              0x2
 # define SSL_CONF_FLAG_CLIENT            0x4
 # define SSL_CONF_FLAG_SERVER            0x8
 # define SSL_CONF_FLAG_SHOW_ERRORS       0x10
 # define SSL_CONF_FLAG_CERTIFICATE       0x20
 # define SSL_CONF_FLAG_REQUIRE_PRIVATE   0x40
 /* Configuration value types */
 # define SSL_CONF_TYPE_UNKNOWN           0x0
 # define SSL_CONF_TYPE_STRING            0x1
 # define SSL_CONF_TYPE_FILE              0x2
 # define SSL_CONF_TYPE_DIR               0x3
 # define SSL_CONF_TYPE_NONE              0x4
 # define SSL_CONF_TYPE_STORE             0x5
 
 /* Maximum length of the application-controlled segment of a a TLSv1.3 cookie */
 # define SSL_COOKIE_LENGTH                       4096
 
 /*
  * Note: SSL[_CTX]_set_{options,mode} use |= op on the previous value, they
  * cannot be used to clear bits.
  */
 
 uint64_t SSL_CTX_get_options(const SSL_CTX *ctx);
 uint64_t SSL_get_options(const SSL *s);
 uint64_t SSL_CTX_clear_options(SSL_CTX *ctx, uint64_t op);
 uint64_t SSL_clear_options(SSL *s, uint64_t op);
 uint64_t SSL_CTX_set_options(SSL_CTX *ctx, uint64_t op);
 uint64_t SSL_set_options(SSL *s, uint64_t op);
 
 # define SSL_CTX_set_mode(ctx,op) \
         SSL_CTX_ctrl((ctx),SSL_CTRL_MODE,(op),NULL)
 # define SSL_CTX_clear_mode(ctx,op) \
         SSL_CTX_ctrl((ctx),SSL_CTRL_CLEAR_MODE,(op),NULL)
 # define SSL_CTX_get_mode(ctx) \
         SSL_CTX_ctrl((ctx),SSL_CTRL_MODE,0,NULL)
 # define SSL_clear_mode(ssl,op) \
         SSL_ctrl((ssl),SSL_CTRL_CLEAR_MODE,(op),NULL)
 # define SSL_set_mode(ssl,op) \
         SSL_ctrl((ssl),SSL_CTRL_MODE,(op),NULL)
 # define SSL_get_mode(ssl) \
         SSL_ctrl((ssl),SSL_CTRL_MODE,0,NULL)
 # define SSL_set_mtu(ssl, mtu) \
         SSL_ctrl((ssl),SSL_CTRL_SET_MTU,(mtu),NULL)
 # define DTLS_set_link_mtu(ssl, mtu) \
         SSL_ctrl((ssl),DTLS_CTRL_SET_LINK_MTU,(mtu),NULL)
 # define DTLS_get_link_min_mtu(ssl) \
         SSL_ctrl((ssl),DTLS_CTRL_GET_LINK_MIN_MTU,0,NULL)
 
 # define SSL_get_secure_renegotiation_support(ssl) \
         SSL_ctrl((ssl), SSL_CTRL_GET_RI_SUPPORT, 0, NULL)
 
 # define SSL_CTX_set_cert_flags(ctx,op) \
         SSL_CTX_ctrl((ctx),SSL_CTRL_CERT_FLAGS,(op),NULL)
 # define SSL_set_cert_flags(s,op) \
         SSL_ctrl((s),SSL_CTRL_CERT_FLAGS,(op),NULL)
 # define SSL_CTX_clear_cert_flags(ctx,op) \
         SSL_CTX_ctrl((ctx),SSL_CTRL_CLEAR_CERT_FLAGS,(op),NULL)
 # define SSL_clear_cert_flags(s,op) \
         SSL_ctrl((s),SSL_CTRL_CLEAR_CERT_FLAGS,(op),NULL)
 
 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
                               void (*cb) (int write_p, int version,
                                           int content_type, const void *buf,
                                           size_t len, SSL *ssl, void *arg));
 void SSL_set_msg_callback(SSL *ssl,
                           void (*cb) (int write_p, int version,
                                       int content_type, const void *buf,
                                       size_t len, SSL *ssl, void *arg));
 # define SSL_CTX_set_msg_callback_arg(ctx, arg) SSL_CTX_ctrl((ctx), SSL_CTRL_SET_MSG_CALLBACK_ARG, 0, (arg))
 # define SSL_set_msg_callback_arg(ssl, arg) SSL_ctrl((ssl), SSL_CTRL_SET_MSG_CALLBACK_ARG, 0, (arg))
 
 # define SSL_get_extms_support(s) \
         SSL_ctrl((s),SSL_CTRL_GET_EXTMS_SUPPORT,0,NULL)
 
 # ifndef OPENSSL_NO_SRP
 /* see tls_srp.c */
 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 OSSL_DEPRECATEDIN_3_0 __owur int SSL_SRP_CTX_init(SSL *s);
 OSSL_DEPRECATEDIN_3_0 __owur int SSL_CTX_SRP_CTX_init(SSL_CTX *ctx);
 OSSL_DEPRECATEDIN_3_0 int SSL_SRP_CTX_free(SSL *ctx);
 OSSL_DEPRECATEDIN_3_0 int SSL_CTX_SRP_CTX_free(SSL_CTX *ctx);
 OSSL_DEPRECATEDIN_3_0 __owur int SSL_srp_server_param_with_username(SSL *s,
                                                                     int *ad);
 OSSL_DEPRECATEDIN_3_0 __owur int SRP_Calc_A_param(SSL *s);
 #  endif
 # endif
 
 /* 100k max cert list */
 # define SSL_MAX_CERT_LIST_DEFAULT (1024*100)
 
 # define SSL_SESSION_CACHE_MAX_SIZE_DEFAULT      (1024*20)
 
 /*
  * This callback type is used inside SSL_CTX, SSL, and in the functions that
  * set them. It is used to override the generation of SSL/TLS session IDs in
  * a server. Return value should be zero on an error, non-zero to proceed.
  * Also, callbacks should themselves check if the id they generate is unique
  * otherwise the SSL handshake will fail with an error - callbacks can do
  * this using the 'ssl' value they're passed by;
  * SSL_has_matching_session_id(ssl, id, *id_len) The length value passed in
  * is set at the maximum size the session ID can be. In SSLv3/TLSv1 it is 32
  * bytes. The callback can alter this length to be less if desired. It is
  * also an error for the callback to set the size to zero.
  */
 typedef int (*GEN_SESSION_CB) (SSL *ssl, unsigned char *id,
                                unsigned int *id_len);
 
 # define SSL_SESS_CACHE_OFF                      0x0000
 # define SSL_SESS_CACHE_CLIENT                   0x0001
 # define SSL_SESS_CACHE_SERVER                   0x0002
 # define SSL_SESS_CACHE_BOTH     (SSL_SESS_CACHE_CLIENT|SSL_SESS_CACHE_SERVER)
 # define SSL_SESS_CACHE_NO_AUTO_CLEAR            0x0080
 /* enough comments already ... see SSL_CTX_set_session_cache_mode(3) */
 # define SSL_SESS_CACHE_NO_INTERNAL_LOOKUP       0x0100
 # define SSL_SESS_CACHE_NO_INTERNAL_STORE        0x0200
 # define SSL_SESS_CACHE_NO_INTERNAL \
         (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP|SSL_SESS_CACHE_NO_INTERNAL_STORE)
 # define SSL_SESS_CACHE_UPDATE_TIME              0x0400
 
 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx);
 # define SSL_CTX_sess_number(ctx) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_NUMBER,0,NULL)
 # define SSL_CTX_sess_connect(ctx) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_CONNECT,0,NULL)
 # define SSL_CTX_sess_connect_good(ctx) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_CONNECT_GOOD,0,NULL)
 # define SSL_CTX_sess_connect_renegotiate(ctx) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_CONNECT_RENEGOTIATE,0,NULL)
 # define SSL_CTX_sess_accept(ctx) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_ACCEPT,0,NULL)
 # define SSL_CTX_sess_accept_renegotiate(ctx) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_ACCEPT_RENEGOTIATE,0,NULL)
 # define SSL_CTX_sess_accept_good(ctx) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_ACCEPT_GOOD,0,NULL)
 # define SSL_CTX_sess_hits(ctx) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_HIT,0,NULL)
 # define SSL_CTX_sess_cb_hits(ctx) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_CB_HIT,0,NULL)
 # define SSL_CTX_sess_misses(ctx) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_MISSES,0,NULL)
 # define SSL_CTX_sess_timeouts(ctx) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_TIMEOUTS,0,NULL)
 # define SSL_CTX_sess_cache_full(ctx) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_CACHE_FULL,0,NULL)
 
 void SSL_CTX_sess_set_new_cb(SSL_CTX *ctx,
                              int (*new_session_cb) (struct ssl_st *ssl,
                                                     SSL_SESSION *sess));
 int (*SSL_CTX_sess_get_new_cb(SSL_CTX *ctx)) (struct ssl_st *ssl,
                                               SSL_SESSION *sess);
 void SSL_CTX_sess_set_remove_cb(SSL_CTX *ctx,
                                 void (*remove_session_cb) (struct ssl_ctx_st
                                                            *ctx,
                                                            SSL_SESSION *sess));
 void (*SSL_CTX_sess_get_remove_cb(SSL_CTX *ctx)) (struct ssl_ctx_st *ctx,
                                                   SSL_SESSION *sess);
 void SSL_CTX_sess_set_get_cb(SSL_CTX *ctx,
                              SSL_SESSION *(*get_session_cb) (struct ssl_st
                                                              *ssl,
                                                              const unsigned char
                                                              *data, int len,
                                                              int *copy));
 SSL_SESSION *(*SSL_CTX_sess_get_get_cb(SSL_CTX *ctx)) (struct ssl_st *ssl,
                                                        const unsigned char *data,
                                                        int len, int *copy);
 void SSL_CTX_set_info_callback(SSL_CTX *ctx,
                                void (*cb) (const SSL *ssl, int type, int val));
 void (*SSL_CTX_get_info_callback(SSL_CTX *ctx)) (const SSL *ssl, int type,
                                                  int val);
 void SSL_CTX_set_client_cert_cb(SSL_CTX *ctx,
                                 int (*client_cert_cb) (SSL *ssl, X509 **x509,
                                                        EVP_PKEY **pkey));
 int (*SSL_CTX_get_client_cert_cb(SSL_CTX *ctx)) (SSL *ssl, X509 **x509,
                                                  EVP_PKEY **pkey);
 # ifndef OPENSSL_NO_ENGINE
 __owur int SSL_CTX_set_client_cert_engine(SSL_CTX *ctx, ENGINE *e);
 # endif
 void SSL_CTX_set_cookie_generate_cb(SSL_CTX *ctx,
                                     int (*app_gen_cookie_cb) (SSL *ssl,
                                                               unsigned char
                                                               *cookie,
                                                               unsigned int
                                                               *cookie_len));
 void SSL_CTX_set_cookie_verify_cb(SSL_CTX *ctx,
                                   int (*app_verify_cookie_cb) (SSL *ssl,
                                                                const unsigned
                                                                char *cookie,
                                                                unsigned int
                                                                cookie_len));
 
 void SSL_CTX_set_stateless_cookie_generate_cb(
     SSL_CTX *ctx,
     int (*gen_stateless_cookie_cb) (SSL *ssl,
                                     unsigned char *cookie,
                                     size_t *cookie_len));
 void SSL_CTX_set_stateless_cookie_verify_cb(
     SSL_CTX *ctx,
     int (*verify_stateless_cookie_cb) (SSL *ssl,
                                        const unsigned char *cookie,
                                        size_t cookie_len));
 # ifndef OPENSSL_NO_NEXTPROTONEG
 
 typedef int (*SSL_CTX_npn_advertised_cb_func)(SSL *ssl,
                                               const unsigned char **out,
                                               unsigned int *outlen,
                                               void *arg);
 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *s,
                                            SSL_CTX_npn_advertised_cb_func cb,
                                            void *arg);
 #  define SSL_CTX_set_npn_advertised_cb SSL_CTX_set_next_protos_advertised_cb
 
 typedef int (*SSL_CTX_npn_select_cb_func)(SSL *s,
                                           unsigned char **out,
                                           unsigned char *outlen,
                                           const unsigned char *in,
                                           unsigned int inlen,
                                           void *arg);
 void SSL_CTX_set_next_proto_select_cb(SSL_CTX *s,
                                       SSL_CTX_npn_select_cb_func cb,
                                       void *arg);
 #  define SSL_CTX_set_npn_select_cb SSL_CTX_set_next_proto_select_cb
 
 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
                                     unsigned *len);
 #  define SSL_get0_npn_negotiated SSL_get0_next_proto_negotiated
 # endif
 
 __owur int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
                                  const unsigned char *in, unsigned int inlen,
                                  const unsigned char *client,
                                  unsigned int client_len);
 
 # define OPENSSL_NPN_UNSUPPORTED 0
 # define OPENSSL_NPN_NEGOTIATED  1
 # define OPENSSL_NPN_NO_OVERLAP  2
 
 __owur int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
                                    unsigned int protos_len);
 __owur int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
                                unsigned int protos_len);
 typedef int (*SSL_CTX_alpn_select_cb_func)(SSL *ssl,
                                            const unsigned char **out,
                                            unsigned char *outlen,
                                            const unsigned char *in,
                                            unsigned int inlen,
                                            void *arg);
 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
                                 SSL_CTX_alpn_select_cb_func cb,
                                 void *arg);
 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
                             unsigned int *len);
 
 # ifndef OPENSSL_NO_PSK
 /*
  * the maximum length of the buffer given to callbacks containing the
  * resulting identity/psk
  */
 #  define PSK_MAX_IDENTITY_LEN 256
 #  define PSK_MAX_PSK_LEN 512
 typedef unsigned int (*SSL_psk_client_cb_func)(SSL *ssl,
                                                const char *hint,
                                                char *identity,
                                                unsigned int max_identity_len,
                                                unsigned char *psk,
                                                unsigned int max_psk_len);
 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb);
 void SSL_set_psk_client_callback(SSL *ssl, SSL_psk_client_cb_func cb);
 
 typedef unsigned int (*SSL_psk_server_cb_func)(SSL *ssl,
                                                const char *identity,
                                                unsigned char *psk,
                                                unsigned int max_psk_len);
 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb);
 void SSL_set_psk_server_callback(SSL *ssl, SSL_psk_server_cb_func cb);
 
 __owur int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint);
 __owur int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint);
 const char *SSL_get_psk_identity_hint(const SSL *s);
 const char *SSL_get_psk_identity(const SSL *s);
 # endif
 
 typedef int (*SSL_psk_find_session_cb_func)(SSL *ssl,
                                             const unsigned char *identity,
                                             size_t identity_len,
                                             SSL_SESSION **sess);
 typedef int (*SSL_psk_use_session_cb_func)(SSL *ssl, const EVP_MD *md,
                                            const unsigned char **id,
                                            size_t *idlen,
                                            SSL_SESSION **sess);
 
 void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb);
 void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
                                            SSL_psk_find_session_cb_func cb);
 void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb);
 void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
                                           SSL_psk_use_session_cb_func cb);
 
 /* Register callbacks to handle custom TLS Extensions for client or server. */
 
 __owur int SSL_CTX_has_client_custom_ext(const SSL_CTX *ctx,
                                          unsigned int ext_type);
 
 __owur int SSL_CTX_add_client_custom_ext(SSL_CTX *ctx,
                                          unsigned int ext_type,
                                          custom_ext_add_cb add_cb,
                                          custom_ext_free_cb free_cb,
                                          void *add_arg,
                                          custom_ext_parse_cb parse_cb,
                                          void *parse_arg);
 
 __owur int SSL_CTX_add_server_custom_ext(SSL_CTX *ctx,
                                          unsigned int ext_type,
                                          custom_ext_add_cb add_cb,
                                          custom_ext_free_cb free_cb,
                                          void *add_arg,
                                          custom_ext_parse_cb parse_cb,
                                          void *parse_arg);
 
 __owur int SSL_CTX_add_custom_ext(SSL_CTX *ctx, unsigned int ext_type,
                                   unsigned int context,
                                   SSL_custom_ext_add_cb_ex add_cb,
                                   SSL_custom_ext_free_cb_ex free_cb,
                                   void *add_arg,
                                   SSL_custom_ext_parse_cb_ex parse_cb,
                                   void *parse_arg);
 
 __owur int SSL_extension_supported(unsigned int ext_type);
 
 # define SSL_NOTHING            1
 # define SSL_WRITING            2
 # define SSL_READING            3
 # define SSL_X509_LOOKUP        4
 # define SSL_ASYNC_PAUSED       5
 # define SSL_ASYNC_NO_JOBS      6
 # define SSL_CLIENT_HELLO_CB    7
 # define SSL_RETRY_VERIFY       8
 
 /* These will only be used when doing non-blocking IO */
 # define SSL_want_nothing(s)         (SSL_want(s) == SSL_NOTHING)
 # define SSL_want_read(s)            (SSL_want(s) == SSL_READING)
 # define SSL_want_write(s)           (SSL_want(s) == SSL_WRITING)
 # define SSL_want_x509_lookup(s)     (SSL_want(s) == SSL_X509_LOOKUP)
 # define SSL_want_retry_verify(s)    (SSL_want(s) == SSL_RETRY_VERIFY)
 # define SSL_want_async(s)           (SSL_want(s) == SSL_ASYNC_PAUSED)
 # define SSL_want_async_job(s)       (SSL_want(s) == SSL_ASYNC_NO_JOBS)
 # define SSL_want_client_hello_cb(s) (SSL_want(s) == SSL_CLIENT_HELLO_CB)
 
 # define SSL_MAC_FLAG_READ_MAC_STREAM 1
 # define SSL_MAC_FLAG_WRITE_MAC_STREAM 2
 # define SSL_MAC_FLAG_READ_MAC_TLSTREE 4
 # define SSL_MAC_FLAG_WRITE_MAC_TLSTREE 8
 
 /*
  * A callback for logging out TLS key material. This callback should log out
  * |line| followed by a newline.
  */
 typedef void (*SSL_CTX_keylog_cb_func)(const SSL *ssl, const char *line);
 
 /*
  * SSL_CTX_set_keylog_callback configures a callback to log key material. This
  * is intended for debugging use with tools like Wireshark. The cb function
  * should log line followed by a newline.
  */
 void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb);
 
 /*
  * SSL_CTX_get_keylog_callback returns the callback configured by
  * SSL_CTX_set_keylog_callback.
  */
 SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx);
 
 int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data);
 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx);
 int SSL_set_max_early_data(SSL *s, uint32_t max_early_data);
 uint32_t SSL_get_max_early_data(const SSL *s);
 int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data);
 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx);
 int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data);
 uint32_t SSL_get_recv_max_early_data(const SSL *s);
 
 #ifdef __cplusplus
 }
 #endif
 
 # include <openssl/ssl2.h>
 # include <openssl/ssl3.h>
 # include <openssl/tls1.h>      /* This is mostly sslv3 with a few tweaks */
 # include <openssl/dtls1.h>     /* Datagram TLS */
 # include <openssl/srtp.h>      /* Support for the use_srtp extension */
 # include <openssl/quic.h>
 
 #ifdef  __cplusplus
 extern "C" {
 #endif
 
 /*
  * These need to be after the above set of includes due to a compiler bug
  * in VisualStudio 2015
  */
 SKM_DEFINE_STACK_OF_INTERNAL(SSL_CIPHER, const SSL_CIPHER, SSL_CIPHER)
 #define sk_SSL_CIPHER_num(sk) OPENSSL_sk_num(ossl_check_const_SSL_CIPHER_sk_type(sk))
 #define sk_SSL_CIPHER_value(sk, idx) ((const SSL_CIPHER *)OPENSSL_sk_value(ossl_check_const_SSL_CIPHER_sk_type(sk), (idx)))
 #define sk_SSL_CIPHER_new(cmp) ((STACK_OF(SSL_CIPHER) *)OPENSSL_sk_new(ossl_check_SSL_CIPHER_compfunc_type(cmp)))
 #define sk_SSL_CIPHER_new_null() ((STACK_OF(SSL_CIPHER) *)OPENSSL_sk_new_null())
 #define sk_SSL_CIPHER_new_reserve(cmp, n) ((STACK_OF(SSL_CIPHER) *)OPENSSL_sk_new_reserve(ossl_check_SSL_CIPHER_compfunc_type(cmp), (n)))
 #define sk_SSL_CIPHER_reserve(sk, n) OPENSSL_sk_reserve(ossl_check_SSL_CIPHER_sk_type(sk), (n))
 #define sk_SSL_CIPHER_free(sk) OPENSSL_sk_free(ossl_check_SSL_CIPHER_sk_type(sk))
 #define sk_SSL_CIPHER_zero(sk) OPENSSL_sk_zero(ossl_check_SSL_CIPHER_sk_type(sk))
 #define sk_SSL_CIPHER_delete(sk, i) ((const SSL_CIPHER *)OPENSSL_sk_delete(ossl_check_SSL_CIPHER_sk_type(sk), (i)))
 #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)))
 #define sk_SSL_CIPHER_push(sk, ptr) OPENSSL_sk_push(ossl_check_SSL_CIPHER_sk_type(sk), ossl_check_SSL_CIPHER_type(ptr))
 #define sk_SSL_CIPHER_unshift(sk, ptr) OPENSSL_sk_unshift(ossl_check_SSL_CIPHER_sk_type(sk), ossl_check_SSL_CIPHER_type(ptr))
 #define sk_SSL_CIPHER_pop(sk) ((const SSL_CIPHER *)OPENSSL_sk_pop(ossl_check_SSL_CIPHER_sk_type(sk)))
 #define sk_SSL_CIPHER_shift(sk) ((const SSL_CIPHER *)OPENSSL_sk_shift(ossl_check_SSL_CIPHER_sk_type(sk)))
 #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))
 #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))
 #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)))
 #define sk_SSL_CIPHER_find(sk, ptr) OPENSSL_sk_find(ossl_check_SSL_CIPHER_sk_type(sk), ossl_check_SSL_CIPHER_type(ptr))
 #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))
 #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)
 #define sk_SSL_CIPHER_sort(sk) OPENSSL_sk_sort(ossl_check_SSL_CIPHER_sk_type(sk))
 #define sk_SSL_CIPHER_is_sorted(sk) OPENSSL_sk_is_sorted(ossl_check_const_SSL_CIPHER_sk_type(sk))
 #define sk_SSL_CIPHER_dup(sk) ((STACK_OF(SSL_CIPHER) *)OPENSSL_sk_dup(ossl_check_const_SSL_CIPHER_sk_type(sk)))
 #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)))
 #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)))
 
 
 /* compatibility */
 # define SSL_set_app_data(s,arg)         (SSL_set_ex_data(s,0,(char *)(arg)))
 # define SSL_get_app_data(s)             (SSL_get_ex_data(s,0))
 # define SSL_SESSION_set_app_data(s,a)   (SSL_SESSION_set_ex_data(s,0, \
                                                                   (char *)(a)))
 # define SSL_SESSION_get_app_data(s)     (SSL_SESSION_get_ex_data(s,0))
 # define SSL_CTX_get_app_data(ctx)       (SSL_CTX_get_ex_data(ctx,0))
 # define SSL_CTX_set_app_data(ctx,arg)   (SSL_CTX_set_ex_data(ctx,0, \
                                                               (char *)(arg)))
 # ifndef OPENSSL_NO_DEPRECATED_1_1_0
 OSSL_DEPRECATEDIN_1_1_0 void SSL_set_debug(SSL *s, int debug);
 # endif
 
 /* TLSv1.3 KeyUpdate message types */
 /* -1 used so that this is an invalid value for the on-the-wire protocol */
 #define SSL_KEY_UPDATE_NONE             -1
 /* Values as defined for the on-the-wire protocol */
 #define SSL_KEY_UPDATE_NOT_REQUESTED     0
 #define SSL_KEY_UPDATE_REQUESTED         1
 
 /*
  * The valid handshake states (one for each type message sent and one for each
  * type of message received). There are also two "special" states:
  * TLS = TLS or DTLS state
  * DTLS = DTLS specific state
  * CR/SR = Client Read/Server Read
  * CW/SW = Client Write/Server Write
  *
  * The "special" states are:
  * TLS_ST_BEFORE = No handshake has been initiated yet
  * TLS_ST_OK = A handshake has been successfully completed
  */
 typedef enum {
     TLS_ST_BEFORE,
     TLS_ST_OK,
     DTLS_ST_CR_HELLO_VERIFY_REQUEST,
     TLS_ST_CR_SRVR_HELLO,
     TLS_ST_CR_CERT,
     TLS_ST_CR_COMP_CERT,
     TLS_ST_CR_CERT_STATUS,
     TLS_ST_CR_KEY_EXCH,
     TLS_ST_CR_CERT_REQ,
     TLS_ST_CR_SRVR_DONE,
     TLS_ST_CR_SESSION_TICKET,
     TLS_ST_CR_CHANGE,
     TLS_ST_CR_FINISHED,
     TLS_ST_CW_CLNT_HELLO,
     TLS_ST_CW_CERT,
     TLS_ST_CW_COMP_CERT,
     TLS_ST_CW_KEY_EXCH,
     TLS_ST_CW_CERT_VRFY,
     TLS_ST_CW_CHANGE,
     TLS_ST_CW_NEXT_PROTO,
     TLS_ST_CW_FINISHED,
     TLS_ST_SW_HELLO_REQ,
     TLS_ST_SR_CLNT_HELLO,
     DTLS_ST_SW_HELLO_VERIFY_REQUEST,
     TLS_ST_SW_SRVR_HELLO,
     TLS_ST_SW_CERT,
     TLS_ST_SW_COMP_CERT,
     TLS_ST_SW_KEY_EXCH,
     TLS_ST_SW_CERT_REQ,
     TLS_ST_SW_SRVR_DONE,
     TLS_ST_SR_CERT,
     TLS_ST_SR_COMP_CERT,
     TLS_ST_SR_KEY_EXCH,
     TLS_ST_SR_CERT_VRFY,
     TLS_ST_SR_NEXT_PROTO,
     TLS_ST_SR_CHANGE,
     TLS_ST_SR_FINISHED,
     TLS_ST_SW_SESSION_TICKET,
     TLS_ST_SW_CERT_STATUS,
     TLS_ST_SW_CHANGE,
     TLS_ST_SW_FINISHED,
     TLS_ST_SW_ENCRYPTED_EXTENSIONS,
     TLS_ST_CR_ENCRYPTED_EXTENSIONS,
     TLS_ST_CR_CERT_VRFY,
     TLS_ST_SW_CERT_VRFY,
     TLS_ST_CR_HELLO_REQ,
     TLS_ST_SW_KEY_UPDATE,
     TLS_ST_CW_KEY_UPDATE,
     TLS_ST_SR_KEY_UPDATE,
     TLS_ST_CR_KEY_UPDATE,
     TLS_ST_EARLY_DATA,
     TLS_ST_PENDING_EARLY_DATA_END,
     TLS_ST_CW_END_OF_EARLY_DATA,
     TLS_ST_SR_END_OF_EARLY_DATA
 } OSSL_HANDSHAKE_STATE;
 
 /*
  * Most of the following state values are no longer used and are defined to be
  * the closest equivalent value in the current state machine code. Not all
  * defines have an equivalent and are set to a dummy value (-1). SSL_ST_CONNECT
  * and SSL_ST_ACCEPT are still in use in the definition of SSL_CB_ACCEPT_LOOP,
  * SSL_CB_ACCEPT_EXIT, SSL_CB_CONNECT_LOOP and SSL_CB_CONNECT_EXIT.
  */
 
 # define SSL_ST_CONNECT                  0x1000
 # define SSL_ST_ACCEPT                   0x2000
 
 # define SSL_ST_MASK                     0x0FFF
 
 # define SSL_CB_LOOP                     0x01
 # define SSL_CB_EXIT                     0x02
 # define SSL_CB_READ                     0x04
 # define SSL_CB_WRITE                    0x08
 # define SSL_CB_ALERT                    0x4000/* used in callback */
 # define SSL_CB_READ_ALERT               (SSL_CB_ALERT|SSL_CB_READ)
 # define SSL_CB_WRITE_ALERT              (SSL_CB_ALERT|SSL_CB_WRITE)
 # define SSL_CB_ACCEPT_LOOP              (SSL_ST_ACCEPT|SSL_CB_LOOP)
 # define SSL_CB_ACCEPT_EXIT              (SSL_ST_ACCEPT|SSL_CB_EXIT)
 # define SSL_CB_CONNECT_LOOP             (SSL_ST_CONNECT|SSL_CB_LOOP)
 # define SSL_CB_CONNECT_EXIT             (SSL_ST_CONNECT|SSL_CB_EXIT)
 # define SSL_CB_HANDSHAKE_START          0x10
 # define SSL_CB_HANDSHAKE_DONE           0x20
 
 /* Is the SSL_connection established? */
 # define SSL_in_connect_init(a)          (SSL_in_init(a) && !SSL_is_server(a))
 # define SSL_in_accept_init(a)           (SSL_in_init(a) && SSL_is_server(a))
 int SSL_in_init(const SSL *s);
 int SSL_in_before(const SSL *s);
 int SSL_is_init_finished(const SSL *s);
 
 /*
  * The following 3 states are kept in ssl->rlayer.rstate when reads fail, you
  * should not need these
  */
 # define SSL_ST_READ_HEADER                      0xF0
 # define SSL_ST_READ_BODY                        0xF1
 # define SSL_ST_READ_DONE                        0xF2
 
 /*-
  * Obtain latest Finished message
  *   -- that we sent (SSL_get_finished)
  *   -- that we expected from peer (SSL_get_peer_finished).
  * Returns length (0 == no Finished so far), copies up to 'count' bytes.
  */
 size_t SSL_get_finished(const SSL *s, void *buf, size_t count);
 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count);
 
 /*
  * use either SSL_VERIFY_NONE or SSL_VERIFY_PEER, the last 3 options are
  * 'ored' with SSL_VERIFY_PEER if they are desired
  */
 # define SSL_VERIFY_NONE                 0x00
 # define SSL_VERIFY_PEER                 0x01
 # define SSL_VERIFY_FAIL_IF_NO_PEER_CERT 0x02
 # define SSL_VERIFY_CLIENT_ONCE          0x04
 # define SSL_VERIFY_POST_HANDSHAKE       0x08
 
 # ifndef OPENSSL_NO_DEPRECATED_1_1_0
 #  define OpenSSL_add_ssl_algorithms()   SSL_library_init()
 #  define SSLeay_add_ssl_algorithms()    SSL_library_init()
 # endif
 
 /* More backward compatibility */
 # define SSL_get_cipher(s) \
                 SSL_CIPHER_get_name(SSL_get_current_cipher(s))
 # define SSL_get_cipher_bits(s,np) \
                 SSL_CIPHER_get_bits(SSL_get_current_cipher(s),np)
 # define SSL_get_cipher_version(s) \
                 SSL_CIPHER_get_version(SSL_get_current_cipher(s))
 # define SSL_get_cipher_name(s) \
                 SSL_CIPHER_get_name(SSL_get_current_cipher(s))
 # define SSL_get_time(a)         SSL_SESSION_get_time(a)
 # define SSL_set_time(a,b)       SSL_SESSION_set_time((a),(b))
 # define SSL_get_timeout(a)      SSL_SESSION_get_timeout(a)
 # define SSL_set_timeout(a,b)    SSL_SESSION_set_timeout((a),(b))
 
 # define d2i_SSL_SESSION_bio(bp,s_id) ASN1_d2i_bio_of(SSL_SESSION,SSL_SESSION_new,d2i_SSL_SESSION,bp,s_id)
 # define i2d_SSL_SESSION_bio(bp,s_id) ASN1_i2d_bio_of(SSL_SESSION,i2d_SSL_SESSION,bp,s_id)
 
 DECLARE_PEM_rw(SSL_SESSION, SSL_SESSION)
 # define SSL_AD_REASON_OFFSET            1000/* offset to get SSL_R_... value
                                               * from SSL_AD_... */
 /* These alert types are for SSLv3 and TLSv1 */
 # define SSL_AD_CLOSE_NOTIFY             SSL3_AD_CLOSE_NOTIFY
 /* fatal */
 # define SSL_AD_UNEXPECTED_MESSAGE       SSL3_AD_UNEXPECTED_MESSAGE
 /* fatal */
 # define SSL_AD_BAD_RECORD_MAC           SSL3_AD_BAD_RECORD_MAC
 # define SSL_AD_DECRYPTION_FAILED        TLS1_AD_DECRYPTION_FAILED
 # define SSL_AD_RECORD_OVERFLOW          TLS1_AD_RECORD_OVERFLOW
 /* fatal */
 # define SSL_AD_DECOMPRESSION_FAILURE    SSL3_AD_DECOMPRESSION_FAILURE
 /* fatal */
 # define SSL_AD_HANDSHAKE_FAILURE        SSL3_AD_HANDSHAKE_FAILURE
 /* Not for TLS */
 # define SSL_AD_NO_CERTIFICATE           SSL3_AD_NO_CERTIFICATE
 # define SSL_AD_BAD_CERTIFICATE          SSL3_AD_BAD_CERTIFICATE
 # define SSL_AD_UNSUPPORTED_CERTIFICATE  SSL3_AD_UNSUPPORTED_CERTIFICATE
 # define SSL_AD_CERTIFICATE_REVOKED      SSL3_AD_CERTIFICATE_REVOKED
 # define SSL_AD_CERTIFICATE_EXPIRED      SSL3_AD_CERTIFICATE_EXPIRED
 # define SSL_AD_CERTIFICATE_UNKNOWN      SSL3_AD_CERTIFICATE_UNKNOWN
 /* fatal */
 # define SSL_AD_ILLEGAL_PARAMETER        SSL3_AD_ILLEGAL_PARAMETER
 /* fatal */
 # define SSL_AD_UNKNOWN_CA               TLS1_AD_UNKNOWN_CA
 /* fatal */
 # define SSL_AD_ACCESS_DENIED            TLS1_AD_ACCESS_DENIED
 /* fatal */
 # define SSL_AD_DECODE_ERROR             TLS1_AD_DECODE_ERROR
 # define SSL_AD_DECRYPT_ERROR            TLS1_AD_DECRYPT_ERROR
 /* fatal */
 # define SSL_AD_EXPORT_RESTRICTION       TLS1_AD_EXPORT_RESTRICTION
 /* fatal */
 # define SSL_AD_PROTOCOL_VERSION         TLS1_AD_PROTOCOL_VERSION
 /* fatal */
 # define SSL_AD_INSUFFICIENT_SECURITY    TLS1_AD_INSUFFICIENT_SECURITY
 /* fatal */
 # define SSL_AD_INTERNAL_ERROR           TLS1_AD_INTERNAL_ERROR
 # define SSL_AD_USER_CANCELLED           TLS1_AD_USER_CANCELLED
 # define SSL_AD_NO_RENEGOTIATION         TLS1_AD_NO_RENEGOTIATION
 # define SSL_AD_MISSING_EXTENSION        TLS13_AD_MISSING_EXTENSION
 # define SSL_AD_CERTIFICATE_REQUIRED     TLS13_AD_CERTIFICATE_REQUIRED
 # define SSL_AD_UNSUPPORTED_EXTENSION    TLS1_AD_UNSUPPORTED_EXTENSION
 # define SSL_AD_CERTIFICATE_UNOBTAINABLE TLS1_AD_CERTIFICATE_UNOBTAINABLE
 # define SSL_AD_UNRECOGNIZED_NAME        TLS1_AD_UNRECOGNIZED_NAME
 # define SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE
 # define SSL_AD_BAD_CERTIFICATE_HASH_VALUE TLS1_AD_BAD_CERTIFICATE_HASH_VALUE
 /* fatal */
 # define SSL_AD_UNKNOWN_PSK_IDENTITY     TLS1_AD_UNKNOWN_PSK_IDENTITY
 /* fatal */
 # define SSL_AD_INAPPROPRIATE_FALLBACK   TLS1_AD_INAPPROPRIATE_FALLBACK
 # define SSL_AD_NO_APPLICATION_PROTOCOL  TLS1_AD_NO_APPLICATION_PROTOCOL
 # define SSL_ERROR_NONE                  0
 # define SSL_ERROR_SSL                   1
 # define SSL_ERROR_WANT_READ             2
 # define SSL_ERROR_WANT_WRITE            3
 # define SSL_ERROR_WANT_X509_LOOKUP      4
 # define SSL_ERROR_SYSCALL               5/* look at error stack/return
                                            * value/errno */
 # define SSL_ERROR_ZERO_RETURN           6
 # define SSL_ERROR_WANT_CONNECT          7
 # define SSL_ERROR_WANT_ACCEPT           8
 # define SSL_ERROR_WANT_ASYNC            9
 # define SSL_ERROR_WANT_ASYNC_JOB       10
 # define SSL_ERROR_WANT_CLIENT_HELLO_CB 11
 # define SSL_ERROR_WANT_RETRY_VERIFY    12
 
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 #  define SSL_CTRL_SET_TMP_DH                    3
 #  define SSL_CTRL_SET_TMP_ECDH                  4
 #  define SSL_CTRL_SET_TMP_DH_CB                 6
 # endif
 
 # define SSL_CTRL_GET_CLIENT_CERT_REQUEST        9
 # define SSL_CTRL_GET_NUM_RENEGOTIATIONS         10
 # define SSL_CTRL_CLEAR_NUM_RENEGOTIATIONS       11
 # define SSL_CTRL_GET_TOTAL_RENEGOTIATIONS       12
 # define SSL_CTRL_GET_FLAGS                      13
 # define SSL_CTRL_EXTRA_CHAIN_CERT               14
 # define SSL_CTRL_SET_MSG_CALLBACK               15
 # define SSL_CTRL_SET_MSG_CALLBACK_ARG           16
 /* only applies to datagram connections */
 # define SSL_CTRL_SET_MTU                17
 /* Stats */
 # define SSL_CTRL_SESS_NUMBER                    20
 # define SSL_CTRL_SESS_CONNECT                   21
 # define SSL_CTRL_SESS_CONNECT_GOOD              22
 # define SSL_CTRL_SESS_CONNECT_RENEGOTIATE       23
 # define SSL_CTRL_SESS_ACCEPT                    24
 # define SSL_CTRL_SESS_ACCEPT_GOOD               25
 # define SSL_CTRL_SESS_ACCEPT_RENEGOTIATE        26
 # define SSL_CTRL_SESS_HIT                       27
 # define SSL_CTRL_SESS_CB_HIT                    28
 # define SSL_CTRL_SESS_MISSES                    29
 # define SSL_CTRL_SESS_TIMEOUTS                  30
 # define SSL_CTRL_SESS_CACHE_FULL                31
 # define SSL_CTRL_MODE                           33
 # define SSL_CTRL_GET_READ_AHEAD                 40
 # define SSL_CTRL_SET_READ_AHEAD                 41
 # define SSL_CTRL_SET_SESS_CACHE_SIZE            42
 # define SSL_CTRL_GET_SESS_CACHE_SIZE            43
 # define SSL_CTRL_SET_SESS_CACHE_MODE            44
 # define SSL_CTRL_GET_SESS_CACHE_MODE            45
 # define SSL_CTRL_GET_MAX_CERT_LIST              50
 # define SSL_CTRL_SET_MAX_CERT_LIST              51
 # define SSL_CTRL_SET_MAX_SEND_FRAGMENT          52
 /* see tls1.h for macros based on these */
 # define SSL_CTRL_SET_TLSEXT_SERVERNAME_CB       53
 # define SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG      54
 # define SSL_CTRL_SET_TLSEXT_HOSTNAME            55
 # define SSL_CTRL_SET_TLSEXT_DEBUG_CB            56
 # define SSL_CTRL_SET_TLSEXT_DEBUG_ARG           57
 # define SSL_CTRL_GET_TLSEXT_TICKET_KEYS         58
 # define SSL_CTRL_SET_TLSEXT_TICKET_KEYS         59
 /*# define SSL_CTRL_SET_TLSEXT_OPAQUE_PRF_INPUT    60 */
 /*# define SSL_CTRL_SET_TLSEXT_OPAQUE_PRF_INPUT_CB 61 */
 /*# define SSL_CTRL_SET_TLSEXT_OPAQUE_PRF_INPUT_CB_ARG 62 */
 # define SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB       63
 # define SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB_ARG   64
 # define SSL_CTRL_SET_TLSEXT_STATUS_REQ_TYPE     65
 # define SSL_CTRL_GET_TLSEXT_STATUS_REQ_EXTS     66
 # define SSL_CTRL_SET_TLSEXT_STATUS_REQ_EXTS     67
 # define SSL_CTRL_GET_TLSEXT_STATUS_REQ_IDS      68
 # define SSL_CTRL_SET_TLSEXT_STATUS_REQ_IDS      69
 # define SSL_CTRL_GET_TLSEXT_STATUS_REQ_OCSP_RESP        70
 # define SSL_CTRL_SET_TLSEXT_STATUS_REQ_OCSP_RESP        71
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 #  define SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB      72
 # endif
 # define SSL_CTRL_SET_TLS_EXT_SRP_USERNAME_CB    75
 # define SSL_CTRL_SET_SRP_VERIFY_PARAM_CB                76
 # define SSL_CTRL_SET_SRP_GIVE_CLIENT_PWD_CB             77
 # define SSL_CTRL_SET_SRP_ARG            78
 # define SSL_CTRL_SET_TLS_EXT_SRP_USERNAME               79
 # define SSL_CTRL_SET_TLS_EXT_SRP_STRENGTH               80
 # define SSL_CTRL_SET_TLS_EXT_SRP_PASSWORD               81
 # define DTLS_CTRL_GET_TIMEOUT           73
 # define DTLS_CTRL_HANDLE_TIMEOUT        74
 # define SSL_CTRL_GET_RI_SUPPORT                 76
 # define SSL_CTRL_CLEAR_MODE                     78
 # define SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB      79
 # define SSL_CTRL_GET_EXTRA_CHAIN_CERTS          82
 # define SSL_CTRL_CLEAR_EXTRA_CHAIN_CERTS        83
 # define SSL_CTRL_CHAIN                          88
 # define SSL_CTRL_CHAIN_CERT                     89
 # define SSL_CTRL_GET_GROUPS                     90
 # define SSL_CTRL_SET_GROUPS                     91
 # define SSL_CTRL_SET_GROUPS_LIST                92
 # define SSL_CTRL_GET_SHARED_GROUP               93
 # define SSL_CTRL_SET_SIGALGS                    97
 # define SSL_CTRL_SET_SIGALGS_LIST               98
 # define SSL_CTRL_CERT_FLAGS                     99
 # define SSL_CTRL_CLEAR_CERT_FLAGS               100
 # define SSL_CTRL_SET_CLIENT_SIGALGS             101
 # define SSL_CTRL_SET_CLIENT_SIGALGS_LIST        102
 # define SSL_CTRL_GET_CLIENT_CERT_TYPES          103
 # define SSL_CTRL_SET_CLIENT_CERT_TYPES          104
 # define SSL_CTRL_BUILD_CERT_CHAIN               105
 # define SSL_CTRL_SET_VERIFY_CERT_STORE          106
 # define SSL_CTRL_SET_CHAIN_CERT_STORE           107
 # define SSL_CTRL_GET_PEER_SIGNATURE_NID         108
 # define SSL_CTRL_GET_PEER_TMP_KEY               109
 # define SSL_CTRL_GET_RAW_CIPHERLIST             110
 # define SSL_CTRL_GET_EC_POINT_FORMATS           111
 # define SSL_CTRL_GET_CHAIN_CERTS                115
 # define SSL_CTRL_SELECT_CURRENT_CERT            116
 # define SSL_CTRL_SET_CURRENT_CERT               117
 # define SSL_CTRL_SET_DH_AUTO                    118
 # define DTLS_CTRL_SET_LINK_MTU                  120
 # define DTLS_CTRL_GET_LINK_MIN_MTU              121
 # define SSL_CTRL_GET_EXTMS_SUPPORT              122
 # define SSL_CTRL_SET_MIN_PROTO_VERSION          123
 # define SSL_CTRL_SET_MAX_PROTO_VERSION          124
 # define SSL_CTRL_SET_SPLIT_SEND_FRAGMENT        125
 # define SSL_CTRL_SET_MAX_PIPELINES              126
 # define SSL_CTRL_GET_TLSEXT_STATUS_REQ_TYPE     127
 # define SSL_CTRL_GET_TLSEXT_STATUS_REQ_CB       128
 # define SSL_CTRL_GET_TLSEXT_STATUS_REQ_CB_ARG   129
 # define SSL_CTRL_GET_MIN_PROTO_VERSION          130
 # define SSL_CTRL_GET_MAX_PROTO_VERSION          131
 # define SSL_CTRL_GET_SIGNATURE_NID              132
 # define SSL_CTRL_GET_TMP_KEY                    133
 # define SSL_CTRL_GET_NEGOTIATED_GROUP           134
 # define SSL_CTRL_GET_IANA_GROUPS                135
 # define SSL_CTRL_SET_RETRY_VERIFY               136
 # define SSL_CTRL_GET_VERIFY_CERT_STORE          137
 # define SSL_CTRL_GET_CHAIN_CERT_STORE           138
 # define SSL_CERT_SET_FIRST                      1
 # define SSL_CERT_SET_NEXT                       2
 # define SSL_CERT_SET_SERVER                     3
 # define DTLSv1_get_timeout(ssl, arg) \
         SSL_ctrl(ssl,DTLS_CTRL_GET_TIMEOUT,0, (void *)(arg))
 # define DTLSv1_handle_timeout(ssl) \
         SSL_ctrl(ssl,DTLS_CTRL_HANDLE_TIMEOUT,0, NULL)
 # define SSL_num_renegotiations(ssl) \
         SSL_ctrl((ssl),SSL_CTRL_GET_NUM_RENEGOTIATIONS,0,NULL)
 # define SSL_clear_num_renegotiations(ssl) \
         SSL_ctrl((ssl),SSL_CTRL_CLEAR_NUM_RENEGOTIATIONS,0,NULL)
 # define SSL_total_renegotiations(ssl) \
         SSL_ctrl((ssl),SSL_CTRL_GET_TOTAL_RENEGOTIATIONS,0,NULL)
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 #  define SSL_CTX_set_tmp_dh(ctx,dh) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_DH,0,(char *)(dh))
 # endif
 # define SSL_CTX_set_dh_auto(ctx, onoff) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_DH_AUTO,onoff,NULL)
 # define SSL_set_dh_auto(s, onoff) \
         SSL_ctrl(s,SSL_CTRL_SET_DH_AUTO,onoff,NULL)
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 #  define SSL_set_tmp_dh(ssl,dh) \
         SSL_ctrl(ssl,SSL_CTRL_SET_TMP_DH,0,(char *)(dh))
 # endif
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 #  define SSL_CTX_set_tmp_ecdh(ctx,ecdh) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH,0,(char *)(ecdh))
 #  define SSL_set_tmp_ecdh(ssl,ecdh) \
         SSL_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH,0,(char *)(ecdh))
 # endif
 # define SSL_CTX_add_extra_chain_cert(ctx,x509) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_EXTRA_CHAIN_CERT,0,(char *)(x509))
 # define SSL_CTX_get_extra_chain_certs(ctx,px509) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_GET_EXTRA_CHAIN_CERTS,0,px509)
 # define SSL_CTX_get_extra_chain_certs_only(ctx,px509) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_GET_EXTRA_CHAIN_CERTS,1,px509)
 # define SSL_CTX_clear_extra_chain_certs(ctx) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_CLEAR_EXTRA_CHAIN_CERTS,0,NULL)
 # define SSL_CTX_set0_chain(ctx,sk) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_CHAIN,0,(char *)(sk))
 # define SSL_CTX_set1_chain(ctx,sk) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_CHAIN,1,(char *)(sk))
 # define SSL_CTX_add0_chain_cert(ctx,x509) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_CHAIN_CERT,0,(char *)(x509))
 # define SSL_CTX_add1_chain_cert(ctx,x509) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_CHAIN_CERT,1,(char *)(x509))
 # define SSL_CTX_get0_chain_certs(ctx,px509) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_GET_CHAIN_CERTS,0,px509)
 # define SSL_CTX_clear_chain_certs(ctx) \
         SSL_CTX_set0_chain(ctx,NULL)
 # define SSL_CTX_build_cert_chain(ctx, flags) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_BUILD_CERT_CHAIN, flags, NULL)
 # define SSL_CTX_select_current_cert(ctx,x509) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SELECT_CURRENT_CERT,0,(char *)(x509))
 # define SSL_CTX_set_current_cert(ctx, op) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CURRENT_CERT, op, NULL)
 # define SSL_CTX_set0_verify_cert_store(ctx,st) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_VERIFY_CERT_STORE,0,(char *)(st))
 # define SSL_CTX_set1_verify_cert_store(ctx,st) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_VERIFY_CERT_STORE,1,(char *)(st))
 # define SSL_CTX_get0_verify_cert_store(ctx,st) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_GET_VERIFY_CERT_STORE,0,(char *)(st))
 # define SSL_CTX_set0_chain_cert_store(ctx,st) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CHAIN_CERT_STORE,0,(char *)(st))
 # define SSL_CTX_set1_chain_cert_store(ctx,st) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CHAIN_CERT_STORE,1,(char *)(st))
 # define SSL_CTX_get0_chain_cert_store(ctx,st) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_GET_CHAIN_CERT_STORE,0,(char *)(st))
 # define SSL_set0_chain(s,sk) \
         SSL_ctrl(s,SSL_CTRL_CHAIN,0,(char *)(sk))
 # define SSL_set1_chain(s,sk) \
         SSL_ctrl(s,SSL_CTRL_CHAIN,1,(char *)(sk))
 # define SSL_add0_chain_cert(s,x509) \
         SSL_ctrl(s,SSL_CTRL_CHAIN_CERT,0,(char *)(x509))
 # define SSL_add1_chain_cert(s,x509) \
         SSL_ctrl(s,SSL_CTRL_CHAIN_CERT,1,(char *)(x509))
 # define SSL_get0_chain_certs(s,px509) \
         SSL_ctrl(s,SSL_CTRL_GET_CHAIN_CERTS,0,px509)
 # define SSL_clear_chain_certs(s) \
         SSL_set0_chain(s,NULL)
 # define SSL_build_cert_chain(s, flags) \
         SSL_ctrl(s,SSL_CTRL_BUILD_CERT_CHAIN, flags, NULL)
 # define SSL_select_current_cert(s,x509) \
         SSL_ctrl(s,SSL_CTRL_SELECT_CURRENT_CERT,0,(char *)(x509))
 # define SSL_set_current_cert(s,op) \
         SSL_ctrl(s,SSL_CTRL_SET_CURRENT_CERT, op, NULL)
 # define SSL_set0_verify_cert_store(s,st) \
         SSL_ctrl(s,SSL_CTRL_SET_VERIFY_CERT_STORE,0,(char *)(st))
 # define SSL_set1_verify_cert_store(s,st) \
         SSL_ctrl(s,SSL_CTRL_SET_VERIFY_CERT_STORE,1,(char *)(st))
 #define SSL_get0_verify_cert_store(s,st) \
         SSL_ctrl(s,SSL_CTRL_GET_VERIFY_CERT_STORE,0,(char *)(st))
 # define SSL_set0_chain_cert_store(s,st) \
         SSL_ctrl(s,SSL_CTRL_SET_CHAIN_CERT_STORE,0,(char *)(st))
 # define SSL_set1_chain_cert_store(s,st) \
         SSL_ctrl(s,SSL_CTRL_SET_CHAIN_CERT_STORE,1,(char *)(st))
 #define SSL_get0_chain_cert_store(s,st) \
         SSL_ctrl(s,SSL_CTRL_GET_CHAIN_CERT_STORE,0,(char *)(st))
 
 # define SSL_get1_groups(s, glist) \
         SSL_ctrl(s,SSL_CTRL_GET_GROUPS,0,(int*)(glist))
 # define SSL_get0_iana_groups(s, plst) \
         SSL_ctrl(s,SSL_CTRL_GET_IANA_GROUPS,0,(uint16_t **)(plst))
 # define SSL_CTX_set1_groups(ctx, glist, glistlen) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_GROUPS,glistlen,(int *)(glist))
 # define SSL_CTX_set1_groups_list(ctx, s) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_GROUPS_LIST,0,(char *)(s))
 # define SSL_set1_groups(s, glist, glistlen) \
         SSL_ctrl(s,SSL_CTRL_SET_GROUPS,glistlen,(char *)(glist))
 # define SSL_set1_groups_list(s, str) \
         SSL_ctrl(s,SSL_CTRL_SET_GROUPS_LIST,0,(char *)(str))
 # define SSL_get_shared_group(s, n) \
         SSL_ctrl(s,SSL_CTRL_GET_SHARED_GROUP,n,NULL)
 # define SSL_get_negotiated_group(s) \
         SSL_ctrl(s,SSL_CTRL_GET_NEGOTIATED_GROUP,0,NULL)
 # define SSL_CTX_set1_sigalgs(ctx, slist, slistlen) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_SIGALGS,slistlen,(int *)(slist))
 # define SSL_CTX_set1_sigalgs_list(ctx, s) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_SIGALGS_LIST,0,(char *)(s))
 # define SSL_set1_sigalgs(s, slist, slistlen) \
         SSL_ctrl(s,SSL_CTRL_SET_SIGALGS,slistlen,(int *)(slist))
 # define SSL_set1_sigalgs_list(s, str) \
         SSL_ctrl(s,SSL_CTRL_SET_SIGALGS_LIST,0,(char *)(str))
 # define SSL_CTX_set1_client_sigalgs(ctx, slist, slistlen) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CLIENT_SIGALGS,slistlen,(int *)(slist))
 # define SSL_CTX_set1_client_sigalgs_list(ctx, s) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CLIENT_SIGALGS_LIST,0,(char *)(s))
 # define SSL_set1_client_sigalgs(s, slist, slistlen) \
         SSL_ctrl(s,SSL_CTRL_SET_CLIENT_SIGALGS,slistlen,(int *)(slist))
 # define SSL_set1_client_sigalgs_list(s, str) \
         SSL_ctrl(s,SSL_CTRL_SET_CLIENT_SIGALGS_LIST,0,(char *)(str))
 # define SSL_get0_certificate_types(s, clist) \
         SSL_ctrl(s, SSL_CTRL_GET_CLIENT_CERT_TYPES, 0, (char *)(clist))
 # define SSL_CTX_set1_client_certificate_types(ctx, clist, clistlen) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CLIENT_CERT_TYPES,clistlen, \
                      (char *)(clist))
 # define SSL_set1_client_certificate_types(s, clist, clistlen) \
         SSL_ctrl(s,SSL_CTRL_SET_CLIENT_CERT_TYPES,clistlen,(char *)(clist))
 # define SSL_get_signature_nid(s, pn) \
         SSL_ctrl(s,SSL_CTRL_GET_SIGNATURE_NID,0,pn)
 # define SSL_get_peer_signature_nid(s, pn) \
         SSL_ctrl(s,SSL_CTRL_GET_PEER_SIGNATURE_NID,0,pn)
 # define SSL_get_peer_tmp_key(s, pk) \
         SSL_ctrl(s,SSL_CTRL_GET_PEER_TMP_KEY,0,pk)
 # define SSL_get_tmp_key(s, pk) \
         SSL_ctrl(s,SSL_CTRL_GET_TMP_KEY,0,pk)
 # define SSL_get0_raw_cipherlist(s, plst) \
         SSL_ctrl(s,SSL_CTRL_GET_RAW_CIPHERLIST,0,plst)
 # define SSL_get0_ec_point_formats(s, plst) \
         SSL_ctrl(s,SSL_CTRL_GET_EC_POINT_FORMATS,0,plst)
 # define SSL_CTX_set_min_proto_version(ctx, version) \
         SSL_CTX_ctrl(ctx, SSL_CTRL_SET_MIN_PROTO_VERSION, version, NULL)
 # define SSL_CTX_set_max_proto_version(ctx, version) \
         SSL_CTX_ctrl(ctx, SSL_CTRL_SET_MAX_PROTO_VERSION, version, NULL)
 # define SSL_CTX_get_min_proto_version(ctx) \
         SSL_CTX_ctrl(ctx, SSL_CTRL_GET_MIN_PROTO_VERSION, 0, NULL)
 # define SSL_CTX_get_max_proto_version(ctx) \
         SSL_CTX_ctrl(ctx, SSL_CTRL_GET_MAX_PROTO_VERSION, 0, NULL)
 # define SSL_set_min_proto_version(s, version) \
         SSL_ctrl(s, SSL_CTRL_SET_MIN_PROTO_VERSION, version, NULL)
 # define SSL_set_max_proto_version(s, version) \
         SSL_ctrl(s, SSL_CTRL_SET_MAX_PROTO_VERSION, version, NULL)
 # define SSL_get_min_proto_version(s) \
         SSL_ctrl(s, SSL_CTRL_GET_MIN_PROTO_VERSION, 0, NULL)
 # define SSL_get_max_proto_version(s) \
         SSL_ctrl(s, SSL_CTRL_GET_MAX_PROTO_VERSION, 0, NULL)
 
 const char *SSL_get0_group_name(SSL *s);
 const char *SSL_group_to_name(SSL *s, int id);
 
 /* Backwards compatibility, original 1.1.0 names */
 # define SSL_CTRL_GET_SERVER_TMP_KEY \
          SSL_CTRL_GET_PEER_TMP_KEY
 # define SSL_get_server_tmp_key(s, pk) \
          SSL_get_peer_tmp_key(s, pk)
 
 int SSL_set0_tmp_dh_pkey(SSL *s, EVP_PKEY *dhpkey);
 int SSL_CTX_set0_tmp_dh_pkey(SSL_CTX *ctx, EVP_PKEY *dhpkey);
 
 /*
  * The following symbol names are old and obsolete. They are kept
  * for compatibility reasons only and should not be used anymore.
  */
 # define SSL_CTRL_GET_CURVES           SSL_CTRL_GET_GROUPS
 # define SSL_CTRL_SET_CURVES           SSL_CTRL_SET_GROUPS
 # define SSL_CTRL_SET_CURVES_LIST      SSL_CTRL_SET_GROUPS_LIST
 # define SSL_CTRL_GET_SHARED_CURVE     SSL_CTRL_GET_SHARED_GROUP
 
 # define SSL_get1_curves               SSL_get1_groups
 # define SSL_CTX_set1_curves           SSL_CTX_set1_groups
 # define SSL_CTX_set1_curves_list      SSL_CTX_set1_groups_list
 # define SSL_set1_curves               SSL_set1_groups
 # define SSL_set1_curves_list          SSL_set1_groups_list
 # define SSL_get_shared_curve          SSL_get_shared_group
 
 
 # ifndef OPENSSL_NO_DEPRECATED_1_1_0
 /* Provide some compatibility macros for removed functionality. */
 #  define SSL_CTX_need_tmp_RSA(ctx)                0
 #  define SSL_CTX_set_tmp_rsa(ctx,rsa)             1
 #  define SSL_need_tmp_RSA(ssl)                    0
 #  define SSL_set_tmp_rsa(ssl,rsa)                 1
 #  define SSL_CTX_set_ecdh_auto(dummy, onoff)      ((onoff) != 0)
 #  define SSL_set_ecdh_auto(dummy, onoff)          ((onoff) != 0)
 /*
  * We "pretend" to call the callback to avoid warnings about unused static
  * functions.
  */
 #  define SSL_CTX_set_tmp_rsa_callback(ctx, cb)    while(0) (cb)(NULL, 0, 0)
 #  define SSL_set_tmp_rsa_callback(ssl, cb)        while(0) (cb)(NULL, 0, 0)
 # endif
 __owur const BIO_METHOD *BIO_f_ssl(void);
 __owur BIO *BIO_new_ssl(SSL_CTX *ctx, int client);
 __owur BIO *BIO_new_ssl_connect(SSL_CTX *ctx);
 __owur BIO *BIO_new_buffer_ssl_connect(SSL_CTX *ctx);
 __owur int BIO_ssl_copy_session_id(BIO *to, BIO *from);
 void BIO_ssl_shutdown(BIO *ssl_bio);
 
 __owur int SSL_CTX_set_cipher_list(SSL_CTX *, const char *str);
 __owur SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth);
 __owur SSL_CTX *SSL_CTX_new_ex(OSSL_LIB_CTX *libctx, const char *propq,
                                const SSL_METHOD *meth);
 int SSL_CTX_up_ref(SSL_CTX *ctx);
 void SSL_CTX_free(SSL_CTX *);
 __owur long SSL_CTX_set_timeout(SSL_CTX *ctx, long t);
 __owur long SSL_CTX_get_timeout(const SSL_CTX *ctx);
 __owur X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *);
 void SSL_CTX_set_cert_store(SSL_CTX *, X509_STORE *);
 void SSL_CTX_set1_cert_store(SSL_CTX *, X509_STORE *);
 __owur int SSL_want(const SSL *s);
 __owur int SSL_clear(SSL *s);
 
 #ifndef OPENSSL_NO_DEPRECATED_3_4
 OSSL_DEPRECATEDIN_3_4_FOR("not Y2038-safe, replace with SSL_CTX_flush_sessions_ex()")
 void SSL_CTX_flush_sessions(SSL_CTX *ctx, long tm);
 #endif
 void SSL_CTX_flush_sessions_ex(SSL_CTX *ctx, time_t tm);
 
 __owur const SSL_CIPHER *SSL_get_current_cipher(const SSL *s);
 __owur const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s);
 __owur int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits);
 __owur const char *SSL_CIPHER_get_version(const SSL_CIPHER *c);
 __owur const char *SSL_CIPHER_get_name(const SSL_CIPHER *c);
 __owur const char *SSL_CIPHER_standard_name(const SSL_CIPHER *c);
 __owur const char *OPENSSL_cipher_name(const char *rfc_name);
 __owur uint32_t SSL_CIPHER_get_id(const SSL_CIPHER *c);
 __owur uint16_t SSL_CIPHER_get_protocol_id(const SSL_CIPHER *c);
 __owur int SSL_CIPHER_get_kx_nid(const SSL_CIPHER *c);
 __owur int SSL_CIPHER_get_auth_nid(const SSL_CIPHER *c);
 __owur const EVP_MD *SSL_CIPHER_get_handshake_digest(const SSL_CIPHER *c);
 __owur int SSL_CIPHER_is_aead(const SSL_CIPHER *c);
 
 __owur int SSL_get_fd(const SSL *s);
 __owur int SSL_get_rfd(const SSL *s);
 __owur int SSL_get_wfd(const SSL *s);
 __owur const char *SSL_get_cipher_list(const SSL *s, int n);
 __owur char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size);
 __owur int SSL_get_read_ahead(const SSL *s);
 __owur int SSL_pending(const SSL *s);
 __owur int SSL_has_pending(const SSL *s);
 # ifndef OPENSSL_NO_SOCK
 __owur int SSL_set_fd(SSL *s, int fd);
 __owur int SSL_set_rfd(SSL *s, int fd);
 __owur int SSL_set_wfd(SSL *s, int fd);
 # endif
 void SSL_set0_rbio(SSL *s, BIO *rbio);
 void SSL_set0_wbio(SSL *s, BIO *wbio);
 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio);
 __owur BIO *SSL_get_rbio(const SSL *s);
 __owur BIO *SSL_get_wbio(const SSL *s);
 __owur int SSL_set_cipher_list(SSL *s, const char *str);
 __owur int SSL_CTX_set_ciphersuites(SSL_CTX *ctx, const char *str);
 __owur int SSL_set_ciphersuites(SSL *s, const char *str);
 void SSL_set_read_ahead(SSL *s, int yes);
 __owur int SSL_get_verify_mode(const SSL *s);
 __owur int SSL_get_verify_depth(const SSL *s);
 __owur SSL_verify_cb SSL_get_verify_callback(const SSL *s);
 void SSL_set_verify(SSL *s, int mode, SSL_verify_cb callback);
 void SSL_set_verify_depth(SSL *s, int depth);
 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg);
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 OSSL_DEPRECATEDIN_3_0 __owur int SSL_use_RSAPrivateKey(SSL *ssl, RSA *rsa);
 OSSL_DEPRECATEDIN_3_0
 __owur int SSL_use_RSAPrivateKey_ASN1(SSL *ssl,
                                       const unsigned char *d, long len);
 # endif
 __owur int SSL_use_PrivateKey(SSL *ssl, EVP_PKEY *pkey);
 __owur int SSL_use_PrivateKey_ASN1(int pk, SSL *ssl, const unsigned char *d,
                                    long len);
 __owur int SSL_use_certificate(SSL *ssl, X509 *x);
 __owur int SSL_use_certificate_ASN1(SSL *ssl, const unsigned char *d, int len);
 __owur int SSL_use_cert_and_key(SSL *ssl, X509 *x509, EVP_PKEY *privatekey,
                                 STACK_OF(X509) *chain, int override);
 
 
 /* serverinfo file format versions */
 # define SSL_SERVERINFOV1   1
 # define SSL_SERVERINFOV2   2
 
 /* Set serverinfo data for the current active cert. */
 __owur int SSL_CTX_use_serverinfo(SSL_CTX *ctx, const unsigned char *serverinfo,
                                   size_t serverinfo_length);
 __owur int SSL_CTX_use_serverinfo_ex(SSL_CTX *ctx, unsigned int version,
                                      const unsigned char *serverinfo,
                                      size_t serverinfo_length);
 __owur int SSL_CTX_use_serverinfo_file(SSL_CTX *ctx, const char *file);
 
 #ifndef OPENSSL_NO_DEPRECATED_3_0
 OSSL_DEPRECATEDIN_3_0
 __owur int SSL_use_RSAPrivateKey_file(SSL *ssl, const char *file, int type);
 #endif
 
 __owur int SSL_use_PrivateKey_file(SSL *ssl, const char *file, int type);
 __owur int SSL_use_certificate_file(SSL *ssl, const char *file, int type);
 
 #ifndef OPENSSL_NO_DEPRECATED_3_0
 OSSL_DEPRECATEDIN_3_0
 __owur int SSL_CTX_use_RSAPrivateKey_file(SSL_CTX *ctx, const char *file,
                                           int type);
 #endif
 __owur int SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char *file,
                                        int type);
 __owur int SSL_CTX_use_certificate_file(SSL_CTX *ctx, const char *file,
                                         int type);
 /* PEM type */
 __owur int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file);
 __owur int SSL_use_certificate_chain_file(SSL *ssl, const char *file);
 __owur STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file);
 __owur STACK_OF(X509_NAME)
 *SSL_load_client_CA_file_ex(const char *file, OSSL_LIB_CTX *libctx,
                             const char *propq);
 __owur int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stackCAs,
                                                const char *file);
 int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stackCAs,
                                        const char *dir);
 int SSL_add_store_cert_subjects_to_stack(STACK_OF(X509_NAME) *stackCAs,
                                        const char *uri);
 
 # ifndef OPENSSL_NO_DEPRECATED_1_1_0
 #  define SSL_load_error_strings() \
     OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS \
                      | OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL)
 # endif
 
 __owur const char *SSL_state_string(const SSL *s);
 __owur const char *SSL_rstate_string(const SSL *s);
 __owur const char *SSL_state_string_long(const SSL *s);
 __owur const char *SSL_rstate_string_long(const SSL *s);
 
 #ifndef OPENSSL_NO_DEPRECATED_3_4
 OSSL_DEPRECATEDIN_3_4_FOR("not Y2038-safe, replace with SSL_SESSION_get_time_ex()")
 __owur long SSL_SESSION_get_time(const SSL_SESSION *s);
 OSSL_DEPRECATEDIN_3_4_FOR("not Y2038-safe, replace with SSL_SESSION_set_time_ex()")
 __owur long SSL_SESSION_set_time(SSL_SESSION *s, long t);
 #endif
 __owur long SSL_SESSION_get_timeout(const SSL_SESSION *s);
 __owur long SSL_SESSION_set_timeout(SSL_SESSION *s, long t);
 __owur int SSL_SESSION_get_protocol_version(const SSL_SESSION *s);
 __owur int SSL_SESSION_set_protocol_version(SSL_SESSION *s, int version);
 
 __owur time_t SSL_SESSION_get_time_ex(const SSL_SESSION *s);
 __owur time_t SSL_SESSION_set_time_ex(SSL_SESSION *s, time_t t);
 
 __owur const char *SSL_SESSION_get0_hostname(const SSL_SESSION *s);
 __owur int SSL_SESSION_set1_hostname(SSL_SESSION *s, const char *hostname);
 void SSL_SESSION_get0_alpn_selected(const SSL_SESSION *s,
                                     const unsigned char **alpn,
                                     size_t *len);
 __owur int SSL_SESSION_set1_alpn_selected(SSL_SESSION *s,
                                           const unsigned char *alpn,
                                           size_t len);
 __owur const SSL_CIPHER *SSL_SESSION_get0_cipher(const SSL_SESSION *s);
 __owur int SSL_SESSION_set_cipher(SSL_SESSION *s, const SSL_CIPHER *cipher);
 __owur int SSL_SESSION_has_ticket(const SSL_SESSION *s);
 __owur unsigned long SSL_SESSION_get_ticket_lifetime_hint(const SSL_SESSION *s);
 void SSL_SESSION_get0_ticket(const SSL_SESSION *s, const unsigned char **tick,
                              size_t *len);
 __owur uint32_t SSL_SESSION_get_max_early_data(const SSL_SESSION *s);
 __owur int SSL_SESSION_set_max_early_data(SSL_SESSION *s,
                                           uint32_t max_early_data);
 __owur int SSL_copy_session_id(SSL *to, const SSL *from);
 __owur X509 *SSL_SESSION_get0_peer(SSL_SESSION *s);
 __owur int SSL_SESSION_set1_id_context(SSL_SESSION *s,
                                        const unsigned char *sid_ctx,
                                        unsigned int sid_ctx_len);
 __owur int SSL_SESSION_set1_id(SSL_SESSION *s, const unsigned char *sid,
                                unsigned int sid_len);
 __owur int SSL_SESSION_is_resumable(const SSL_SESSION *s);
 
 __owur SSL_SESSION *SSL_SESSION_new(void);
 __owur SSL_SESSION *SSL_SESSION_dup(const SSL_SESSION *src);
 const unsigned char *SSL_SESSION_get_id(const SSL_SESSION *s,
                                         unsigned int *len);
 const unsigned char *SSL_SESSION_get0_id_context(const SSL_SESSION *s,
                                                  unsigned int *len);
 __owur unsigned int SSL_SESSION_get_compress_id(const SSL_SESSION *s);
 # ifndef OPENSSL_NO_STDIO
 int SSL_SESSION_print_fp(FILE *fp, const SSL_SESSION *ses);
 # endif
 int SSL_SESSION_print(BIO *fp, const SSL_SESSION *ses);
 int SSL_SESSION_print_keylog(BIO *bp, const SSL_SESSION *x);
 int SSL_SESSION_up_ref(SSL_SESSION *ses);
 void SSL_SESSION_free(SSL_SESSION *ses);
 __owur int i2d_SSL_SESSION(const SSL_SESSION *in, unsigned char **pp);
 __owur int SSL_set_session(SSL *to, SSL_SESSION *session);
 int SSL_CTX_add_session(SSL_CTX *ctx, SSL_SESSION *session);
 int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *session);
 __owur int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb);
 __owur int SSL_set_generate_session_id(SSL *s, GEN_SESSION_CB cb);
 __owur int SSL_has_matching_session_id(const SSL *s,
                                        const unsigned char *id,
                                        unsigned int id_len);
 SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const unsigned char **pp,
                              long length);
 SSL_SESSION *d2i_SSL_SESSION_ex(SSL_SESSION **a, const unsigned char **pp,
                                 long length, OSSL_LIB_CTX *libctx,
                                 const char *propq);
 
 # ifdef OPENSSL_X509_H
 __owur X509 *SSL_get0_peer_certificate(const SSL *s);
 __owur X509 *SSL_get1_peer_certificate(const SSL *s);
 /* Deprecated in 3.0.0 */
 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 #   define SSL_get_peer_certificate SSL_get1_peer_certificate
 #  endif
 # endif
 
 __owur STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s);
 
 __owur int SSL_CTX_get_verify_mode(const SSL_CTX *ctx);
 __owur int SSL_CTX_get_verify_depth(const SSL_CTX *ctx);
 __owur SSL_verify_cb SSL_CTX_get_verify_callback(const SSL_CTX *ctx);
 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode, SSL_verify_cb callback);
 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth);
 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
                                       int (*cb) (X509_STORE_CTX *, void *),
                                       void *arg);
 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg),
                          void *arg);
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 OSSL_DEPRECATEDIN_3_0
 __owur int SSL_CTX_use_RSAPrivateKey(SSL_CTX *ctx, RSA *rsa);
 OSSL_DEPRECATEDIN_3_0
 __owur int SSL_CTX_use_RSAPrivateKey_ASN1(SSL_CTX *ctx, const unsigned char *d,
                                           long len);
 # endif
 __owur int SSL_CTX_use_PrivateKey(SSL_CTX *ctx, EVP_PKEY *pkey);
 __owur int SSL_CTX_use_PrivateKey_ASN1(int pk, SSL_CTX *ctx,
                                        const unsigned char *d, long len);
 __owur int SSL_CTX_use_certificate(SSL_CTX *ctx, X509 *x);
 __owur int SSL_CTX_use_certificate_ASN1(SSL_CTX *ctx, int len,
                                         const unsigned char *d);
 __owur int SSL_CTX_use_cert_and_key(SSL_CTX *ctx, X509 *x509, EVP_PKEY *privatekey,
                                     STACK_OF(X509) *chain, int override);
 
 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb);
 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u);
 pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx);
 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx);
 void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb);
 void SSL_set_default_passwd_cb_userdata(SSL *s, void *u);
 pem_password_cb *SSL_get_default_passwd_cb(SSL *s);
 void *SSL_get_default_passwd_cb_userdata(SSL *s);
 
 __owur int SSL_CTX_check_private_key(const SSL_CTX *ctx);
 __owur int SSL_check_private_key(const SSL *ctx);
 
 __owur int SSL_CTX_set_session_id_context(SSL_CTX *ctx,
                                           const unsigned char *sid_ctx,
                                           unsigned int sid_ctx_len);
 
 SSL *SSL_new(SSL_CTX *ctx);
 int SSL_up_ref(SSL *s);
 int SSL_is_dtls(const SSL *s);
 int SSL_is_tls(const SSL *s);
 int SSL_is_quic(const SSL *s);
 __owur int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
                                       unsigned int sid_ctx_len);
 
 __owur int SSL_CTX_set_purpose(SSL_CTX *ctx, int purpose);
 __owur int SSL_set_purpose(SSL *ssl, int purpose);
 __owur int SSL_CTX_set_trust(SSL_CTX *ctx, int trust);
 __owur int SSL_set_trust(SSL *ssl, int trust);
 
 __owur int SSL_set1_host(SSL *s, const char *hostname);
 __owur int SSL_add1_host(SSL *s, const char *hostname);
 __owur const char *SSL_get0_peername(SSL *s);
 void SSL_set_hostflags(SSL *s, unsigned int flags);
 
 __owur int SSL_CTX_dane_enable(SSL_CTX *ctx);
 __owur int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md,
                                   uint8_t mtype, uint8_t ord);
 __owur int SSL_dane_enable(SSL *s, const char *basedomain);
 __owur int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
                              uint8_t mtype, const unsigned char *data, size_t dlen);
 __owur int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki);
 __owur int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
                               uint8_t *mtype, const unsigned char **data,
                               size_t *dlen);
 /*
  * Bridge opacity barrier between libcrypt and libssl, also needed to support
  * offline testing in test/danetest.c
  */
 SSL_DANE *SSL_get0_dane(SSL *ssl);
 /*
  * DANE flags
  */
 unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags);
 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags);
 unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags);
 unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags);
 
 __owur int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm);
 __owur int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm);
 
 __owur X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx);
 __owur X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl);
 
 # ifndef OPENSSL_NO_SRP
 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 OSSL_DEPRECATEDIN_3_0 int SSL_CTX_set_srp_username(SSL_CTX *ctx, char *name);
 OSSL_DEPRECATEDIN_3_0 int SSL_CTX_set_srp_password(SSL_CTX *ctx, char *password);
 OSSL_DEPRECATEDIN_3_0 int SSL_CTX_set_srp_strength(SSL_CTX *ctx, int strength);
 OSSL_DEPRECATEDIN_3_0
 int SSL_CTX_set_srp_client_pwd_callback(SSL_CTX *ctx,
                                         char *(*cb) (SSL *, void *));
 OSSL_DEPRECATEDIN_3_0
 int SSL_CTX_set_srp_verify_param_callback(SSL_CTX *ctx,
                                           int (*cb) (SSL *, void *));
 OSSL_DEPRECATEDIN_3_0
 int SSL_CTX_set_srp_username_callback(SSL_CTX *ctx,
                                       int (*cb) (SSL *, int *, void *));
 OSSL_DEPRECATEDIN_3_0 int SSL_CTX_set_srp_cb_arg(SSL_CTX *ctx, void *arg);
 
 OSSL_DEPRECATEDIN_3_0
 int SSL_set_srp_server_param(SSL *s, const BIGNUM *N, const BIGNUM *g,
                              BIGNUM *sa, BIGNUM *v, char *info);
 OSSL_DEPRECATEDIN_3_0
 int SSL_set_srp_server_param_pw(SSL *s, const char *user, const char *pass,
                                 const char *grp);
 
 OSSL_DEPRECATEDIN_3_0 __owur BIGNUM *SSL_get_srp_g(SSL *s);
 OSSL_DEPRECATEDIN_3_0 __owur BIGNUM *SSL_get_srp_N(SSL *s);
 
 OSSL_DEPRECATEDIN_3_0 __owur char *SSL_get_srp_username(SSL *s);
 OSSL_DEPRECATEDIN_3_0 __owur char *SSL_get_srp_userinfo(SSL *s);
 #  endif
 # endif
 
 /*
  * ClientHello callback and helpers.
  */
 
 # define SSL_CLIENT_HELLO_SUCCESS 1
 # define SSL_CLIENT_HELLO_ERROR   0
 # define SSL_CLIENT_HELLO_RETRY   (-1)
 
 typedef int (*SSL_client_hello_cb_fn) (SSL *s, int *al, void *arg);
 void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
                                  void *arg);
 int SSL_client_hello_isv2(SSL *s);
 unsigned int SSL_client_hello_get0_legacy_version(SSL *s);
 size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out);
 size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out);
 size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out);
 size_t SSL_client_hello_get0_compression_methods(SSL *s,
                                                  const unsigned char **out);
 int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen);
 int SSL_client_hello_get_extension_order(SSL *s, uint16_t *exts,
                                          size_t *num_exts);
 int SSL_client_hello_get0_ext(SSL *s, unsigned int type,
                               const unsigned char **out, size_t *outlen);
 
 void SSL_certs_clear(SSL *s);
 void SSL_free(SSL *ssl);
 # ifdef OSSL_ASYNC_FD
 /*
  * Windows application developer has to include windows.h to use these.
  */
 __owur int SSL_waiting_for_async(SSL *s);
 __owur int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds);
 __owur int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd,
                                      size_t *numaddfds, OSSL_ASYNC_FD *delfd,
                                      size_t *numdelfds);
 __owur int SSL_CTX_set_async_callback(SSL_CTX *ctx, SSL_async_callback_fn callback);
 __owur int SSL_CTX_set_async_callback_arg(SSL_CTX *ctx, void *arg);
 __owur int SSL_set_async_callback(SSL *s, SSL_async_callback_fn callback);
 __owur int SSL_set_async_callback_arg(SSL *s, void *arg);
 __owur int SSL_get_async_status(SSL *s, int *status);
 
 # endif
 __owur int SSL_accept(SSL *ssl);
 __owur int SSL_stateless(SSL *s);
 __owur int SSL_connect(SSL *ssl);
 __owur int SSL_read(SSL *ssl, void *buf, int num);
 __owur int SSL_read_ex(SSL *ssl, void *buf, size_t num, size_t *readbytes);
 
 # define SSL_READ_EARLY_DATA_ERROR   0
 # define SSL_READ_EARLY_DATA_SUCCESS 1
 # define SSL_READ_EARLY_DATA_FINISH  2
 
 __owur int SSL_read_early_data(SSL *s, void *buf, size_t num,
                                size_t *readbytes);
 __owur int SSL_peek(SSL *ssl, void *buf, int num);
 __owur int SSL_peek_ex(SSL *ssl, void *buf, size_t num, size_t *readbytes);
 __owur ossl_ssize_t SSL_sendfile(SSL *s, int fd, off_t offset, size_t size,
                                  int flags);
 __owur int SSL_write(SSL *ssl, const void *buf, int num);
 __owur int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written);
 __owur int SSL_write_early_data(SSL *s, const void *buf, size_t num,
                                 size_t *written);
 long SSL_ctrl(SSL *ssl, int cmd, long larg, void *parg);
 long SSL_callback_ctrl(SSL *, int, void (*)(void));
 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg);
 long SSL_CTX_callback_ctrl(SSL_CTX *, int, void (*)(void));
 
 # define SSL_WRITE_FLAG_CONCLUDE    (1U << 0)
 
 __owur int SSL_write_ex2(SSL *s, const void *buf, size_t num,
                          uint64_t flags,
                          size_t *written);
 
 # define SSL_EARLY_DATA_NOT_SENT    0
 # define SSL_EARLY_DATA_REJECTED    1
 # define SSL_EARLY_DATA_ACCEPTED    2
 
 __owur int SSL_get_early_data_status(const SSL *s);
 
 __owur int SSL_get_error(const SSL *s, int ret_code);
 __owur const char *SSL_get_version(const SSL *s);
 __owur int SSL_get_handshake_rtt(const SSL *s, uint64_t *rtt);
 
 /* This sets the 'default' SSL version that SSL_new() will create */
 # ifndef OPENSSL_NO_DEPRECATED_3_0
 OSSL_DEPRECATEDIN_3_0
 __owur int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth);
 # endif
 
 # ifndef OPENSSL_NO_SSL3_METHOD
 #  ifndef OPENSSL_NO_DEPRECATED_1_1_0
 OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *SSLv3_method(void); /* SSLv3 */
 OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *SSLv3_server_method(void);
 OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *SSLv3_client_method(void);
 #  endif
 # endif
 
 #define SSLv23_method           TLS_method
 #define SSLv23_server_method    TLS_server_method
 #define SSLv23_client_method    TLS_client_method
 
 /* Negotiate highest available SSL/TLS version */
 __owur const SSL_METHOD *TLS_method(void);
 __owur const SSL_METHOD *TLS_server_method(void);
 __owur const SSL_METHOD *TLS_client_method(void);
 
 # ifndef OPENSSL_NO_TLS1_METHOD
 #  ifndef OPENSSL_NO_DEPRECATED_1_1_0
 OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *TLSv1_method(void); /* TLSv1.0 */
 OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *TLSv1_server_method(void);
 OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *TLSv1_client_method(void);
 #  endif
 # endif
 
 # ifndef OPENSSL_NO_TLS1_1_METHOD
 #  ifndef OPENSSL_NO_DEPRECATED_1_1_0
 OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *TLSv1_1_method(void); /* TLSv1.1 */
 OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *TLSv1_1_server_method(void);
 OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *TLSv1_1_client_method(void);
 #  endif
 # endif
 
 # ifndef OPENSSL_NO_TLS1_2_METHOD
 #  ifndef OPENSSL_NO_DEPRECATED_1_1_0
 OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *TLSv1_2_method(void); /* TLSv1.2 */
 OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *TLSv1_2_server_method(void);
 OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *TLSv1_2_client_method(void);
 #  endif
 # endif
 
 # ifndef OPENSSL_NO_DTLS1_METHOD
 #  ifndef OPENSSL_NO_DEPRECATED_1_1_0
 OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *DTLSv1_method(void); /* DTLSv1.0 */
 OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *DTLSv1_server_method(void);
 OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *DTLSv1_client_method(void);
 #  endif
 # endif
 
 # ifndef OPENSSL_NO_DTLS1_2_METHOD
 /* DTLSv1.2 */
 #  ifndef OPENSSL_NO_DEPRECATED_1_1_0
 OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *DTLSv1_2_method(void);
 OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *DTLSv1_2_server_method(void);
 OSSL_DEPRECATEDIN_1_1_0 __owur const SSL_METHOD *DTLSv1_2_client_method(void);
 #  endif
 # endif
 
 __owur const SSL_METHOD *DTLS_method(void); /* DTLS 1.0 and 1.2 */
 __owur const SSL_METHOD *DTLS_server_method(void); /* DTLS 1.0 and 1.2 */
 __owur const SSL_METHOD *DTLS_client_method(void); /* DTLS 1.0 and 1.2 */
 
 __owur size_t DTLS_get_data_mtu(const SSL *s);
 
 __owur STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s);
 __owur STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx);
 __owur STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s);
 __owur STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s);
 
 __owur int SSL_do_handshake(SSL *s);
 int SSL_key_update(SSL *s, int updatetype);
 int SSL_get_key_update_type(const SSL *s);
 int SSL_renegotiate(SSL *s);
 int SSL_renegotiate_abbreviated(SSL *s);
 __owur int SSL_renegotiate_pending(const SSL *s);
 int SSL_new_session_ticket(SSL *s);
 int SSL_shutdown(SSL *s);
 __owur int SSL_verify_client_post_handshake(SSL *s);
 void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val);
 void SSL_set_post_handshake_auth(SSL *s, int val);
 
 __owur const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx);
 __owur const SSL_METHOD *SSL_get_ssl_method(const SSL *s);
 __owur int SSL_set_ssl_method(SSL *s, const SSL_METHOD *method);
 __owur const char *SSL_alert_type_string_long(int value);
 __owur const char *SSL_alert_type_string(int value);
 __owur const char *SSL_alert_desc_string_long(int value);
 __owur const char *SSL_alert_desc_string(int value);
 
 void SSL_set0_CA_list(SSL *s, STACK_OF(X509_NAME) *name_list);
 void SSL_CTX_set0_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *name_list);
 __owur const STACK_OF(X509_NAME) *SSL_get0_CA_list(const SSL *s);
 __owur const STACK_OF(X509_NAME) *SSL_CTX_get0_CA_list(const SSL_CTX *ctx);
 __owur int SSL_add1_to_CA_list(SSL *ssl, const X509 *x);
 __owur int SSL_CTX_add1_to_CA_list(SSL_CTX *ctx, const X509 *x);
 __owur const STACK_OF(X509_NAME) *SSL_get0_peer_CA_list(const SSL *s);
 
 void SSL_set_client_CA_list(SSL *s, STACK_OF(X509_NAME) *name_list);
 void SSL_CTX_set_client_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *name_list);
 __owur STACK_OF(X509_NAME) *SSL_get_client_CA_list(const SSL *s);
 __owur STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *s);
 __owur int SSL_add_client_CA(SSL *ssl, X509 *x);
 __owur int SSL_CTX_add_client_CA(SSL_CTX *ctx, X509 *x);
 
 void SSL_set_connect_state(SSL *s);
 void SSL_set_accept_state(SSL *s);
 
 __owur long SSL_get_default_timeout(const SSL *s);
 
 # ifndef OPENSSL_NO_DEPRECATED_1_1_0
 #  define SSL_library_init() OPENSSL_init_ssl(0, NULL)
 # endif
 
 __owur char *SSL_CIPHER_description(const SSL_CIPHER *, char *buf, int size);
 __owur STACK_OF(X509_NAME) *SSL_dup_CA_list(const STACK_OF(X509_NAME) *sk);
 
 __owur SSL *SSL_dup(SSL *ssl);
 
 __owur X509 *SSL_get_certificate(const SSL *ssl);
 /*
  * EVP_PKEY
  */
 struct evp_pkey_st *SSL_get_privatekey(const SSL *ssl);
 
 __owur X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx);
 __owur EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx);
 
 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode);
 __owur int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx);
 void SSL_set_quiet_shutdown(SSL *ssl, int mode);
 __owur int SSL_get_quiet_shutdown(const SSL *ssl);
 void SSL_set_shutdown(SSL *ssl, int mode);
 __owur int SSL_get_shutdown(const SSL *ssl);
 __owur int SSL_version(const SSL *ssl);
 __owur int SSL_client_version(const SSL *s);
 __owur int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx);
 __owur int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx);
 __owur int SSL_CTX_set_default_verify_file(SSL_CTX *ctx);
 __owur int SSL_CTX_set_default_verify_store(SSL_CTX *ctx);
 __owur int SSL_CTX_load_verify_file(SSL_CTX *ctx, const char *CAfile);
 __owur int SSL_CTX_load_verify_dir(SSL_CTX *ctx, const char *CApath);
 __owur int SSL_CTX_load_verify_store(SSL_CTX *ctx, const char *CAstore);
 __owur int SSL_CTX_load_verify_locations(SSL_CTX *ctx,
                                                         const char *CAfile,
                                                         const char *CApath);
 # define SSL_get0_session SSL_get_session/* just peek at pointer */
 __owur SSL_SESSION *SSL_get_session(const SSL *ssl);
 __owur SSL_SESSION *SSL_get1_session(SSL *ssl); /* obtain a reference count */
 __owur SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl);
 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx);
 void SSL_set_info_callback(SSL *ssl,
                            void (*cb) (const SSL *ssl, int type, int val));
 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL *ssl, int type,
                                                int val);
 __owur OSSL_HANDSHAKE_STATE SSL_get_state(const SSL *ssl);
 
 void SSL_set_verify_result(SSL *ssl, long v);
 __owur long SSL_get_verify_result(const SSL *ssl);
 __owur STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s);
 
 __owur size_t SSL_get_client_random(const SSL *ssl, unsigned char *out,
                                     size_t outlen);
 __owur size_t SSL_get_server_random(const SSL *ssl, unsigned char *out,
                                     size_t outlen);
 __owur size_t SSL_SESSION_get_master_key(const SSL_SESSION *sess,
                                          unsigned char *out, size_t outlen);
 __owur int SSL_SESSION_set1_master_key(SSL_SESSION *sess,
                                        const unsigned char *in, size_t len);
 uint8_t SSL_SESSION_get_max_fragment_length(const SSL_SESSION *sess);
 
 #define SSL_get_ex_new_index(l, p, newf, dupf, freef) \
     CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, l, p, newf, dupf, freef)
 __owur int SSL_set_ex_data(SSL *ssl, int idx, void *data);
 void *SSL_get_ex_data(const SSL *ssl, int idx);
 #define SSL_SESSION_get_ex_new_index(l, p, newf, dupf, freef) \
     CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_SESSION, l, p, newf, dupf, freef)
 __owur int SSL_SESSION_set_ex_data(SSL_SESSION *ss, int idx, void *data);
 void *SSL_SESSION_get_ex_data(const SSL_SESSION *ss, int idx);
 #define SSL_CTX_get_ex_new_index(l, p, newf, dupf, freef) \
     CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, l, p, newf, dupf, freef)
 __owur int SSL_CTX_set_ex_data(SSL_CTX *ssl, int idx, void *data);
 void *SSL_CTX_get_ex_data(const SSL_CTX *ssl, int idx);
 
 __owur int SSL_get_ex_data_X509_STORE_CTX_idx(void);
 
 # define SSL_CTX_sess_set_cache_size(ctx,t) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_SESS_CACHE_SIZE,t,NULL)
 # define SSL_CTX_sess_get_cache_size(ctx) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_GET_SESS_CACHE_SIZE,0,NULL)
 # define SSL_CTX_set_session_cache_mode(ctx,m) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_SESS_CACHE_MODE,m,NULL)
 # define SSL_CTX_get_session_cache_mode(ctx) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_GET_SESS_CACHE_MODE,0,NULL)
 
 # define SSL_CTX_get_default_read_ahead(ctx) SSL_CTX_get_read_ahead(ctx)
 # define SSL_CTX_set_default_read_ahead(ctx,m) SSL_CTX_set_read_ahead(ctx,m)
 # define SSL_CTX_get_read_ahead(ctx) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_GET_READ_AHEAD,0,NULL)
 # define SSL_CTX_set_read_ahead(ctx,m) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_READ_AHEAD,m,NULL)
 # define SSL_CTX_get_max_cert_list(ctx) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_GET_MAX_CERT_LIST,0,NULL)
 # define SSL_CTX_set_max_cert_list(ctx,m) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_MAX_CERT_LIST,m,NULL)
 # define SSL_get_max_cert_list(ssl) \
         SSL_ctrl(ssl,SSL_CTRL_GET_MAX_CERT_LIST,0,NULL)
 # define SSL_set_max_cert_list(ssl,m) \
         SSL_ctrl(ssl,SSL_CTRL_SET_MAX_CERT_LIST,m,NULL)
 
 # define SSL_CTX_set_max_send_fragment(ctx,m) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_MAX_SEND_FRAGMENT,m,NULL)
 # define SSL_set_max_send_fragment(ssl,m) \
         SSL_ctrl(ssl,SSL_CTRL_SET_MAX_SEND_FRAGMENT,m,NULL)
 # define SSL_CTX_set_split_send_fragment(ctx,m) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_SPLIT_SEND_FRAGMENT,m,NULL)
 # define SSL_set_split_send_fragment(ssl,m) \
         SSL_ctrl(ssl,SSL_CTRL_SET_SPLIT_SEND_FRAGMENT,m,NULL)
 # define SSL_CTX_set_max_pipelines(ctx,m) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_MAX_PIPELINES,m,NULL)
 # define SSL_set_max_pipelines(ssl,m) \
         SSL_ctrl(ssl,SSL_CTRL_SET_MAX_PIPELINES,m,NULL)
 # define SSL_set_retry_verify(ssl) \
         (SSL_ctrl(ssl,SSL_CTRL_SET_RETRY_VERIFY,0,NULL) > 0)
 
 void SSL_CTX_set_default_read_buffer_len(SSL_CTX *ctx, size_t len);
 void SSL_set_default_read_buffer_len(SSL *s, size_t len);
 
 # ifndef OPENSSL_NO_DH
 #  ifndef OPENSSL_NO_DEPRECATED_3_0
 /* NB: the |keylength| is only applicable when is_export is true */
 OSSL_DEPRECATEDIN_3_0
 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
                                  DH *(*dh) (SSL *ssl, int is_export,
                                             int keylength));
 OSSL_DEPRECATEDIN_3_0
 void SSL_set_tmp_dh_callback(SSL *ssl,
                              DH *(*dh) (SSL *ssl, int is_export,
                                         int keylength));
 #  endif
 # endif
 
 __owur const COMP_METHOD *SSL_get_current_compression(const SSL *s);
 __owur const COMP_METHOD *SSL_get_current_expansion(const SSL *s);
 __owur const char *SSL_COMP_get_name(const COMP_METHOD *comp);
 __owur const char *SSL_COMP_get0_name(const SSL_COMP *comp);
 __owur int SSL_COMP_get_id(const SSL_COMP *comp);
 STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void);
 __owur STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP)
                                                              *meths);
 # ifndef OPENSSL_NO_DEPRECATED_1_1_0
 #  define SSL_COMP_free_compression_methods() while(0) continue
 # endif
 __owur int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm);
 
 const SSL_CIPHER *SSL_CIPHER_find(SSL *ssl, const unsigned char *ptr);
 int SSL_CIPHER_get_cipher_nid(const SSL_CIPHER *c);
 int SSL_CIPHER_get_digest_nid(const SSL_CIPHER *c);
 int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
                              int isv2format, STACK_OF(SSL_CIPHER) **sk,
                              STACK_OF(SSL_CIPHER) **scsvs);
 
 /* TLS extensions functions */
 __owur int SSL_set_session_ticket_ext(SSL *s, void *ext_data, int ext_len);
 
 __owur int SSL_set_session_ticket_ext_cb(SSL *s,
                                          tls_session_ticket_ext_cb_fn cb,
                                          void *arg);
 
 /* Pre-shared secret session resumption functions */
 __owur int SSL_set_session_secret_cb(SSL *s,
                                      tls_session_secret_cb_fn session_secret_cb,
                                      void *arg);
 
 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
                                                 int (*cb) (SSL *ssl,
                                                            int
                                                            is_forward_secure));
 
 void SSL_set_not_resumable_session_callback(SSL *ssl,
                                             int (*cb) (SSL *ssl,
                                                        int is_forward_secure));
 
 void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
                                          size_t (*cb) (SSL *ssl, int type,
                                                        size_t len, void *arg));
 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg);
 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx);
 int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size);
 int SSL_CTX_set_block_padding_ex(SSL_CTX *ctx, size_t app_block_size,
                                  size_t hs_block_size);
 
 int SSL_set_record_padding_callback(SSL *ssl,
                                     size_t (*cb) (SSL *ssl, int type,
                                                   size_t len, void *arg));
 void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg);
 void *SSL_get_record_padding_callback_arg(const SSL *ssl);
 int SSL_set_block_padding(SSL *ssl, size_t block_size);
 int SSL_set_block_padding_ex(SSL *ssl, size_t app_block_size,
                              size_t hs_block_size);
 int SSL_set_num_tickets(SSL *s, size_t num_tickets);
 size_t SSL_get_num_tickets(const SSL *s);
 int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets);
 size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx);
 
 /* QUIC support */
 int SSL_handle_events(SSL *s);
 __owur int SSL_get_event_timeout(SSL *s, struct timeval *tv, int *is_infinite);
 __owur int SSL_get_rpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc);
 __owur int SSL_get_wpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc);
 __owur int SSL_net_read_desired(SSL *s);
 __owur int SSL_net_write_desired(SSL *s);
 __owur int SSL_set_blocking_mode(SSL *s, int blocking);
 __owur int SSL_get_blocking_mode(SSL *s);
 __owur int SSL_set1_initial_peer_addr(SSL *s, const BIO_ADDR *peer_addr);
 __owur SSL *SSL_get0_connection(SSL *s);
 __owur int SSL_is_connection(SSL *s);
 
 #define SSL_STREAM_TYPE_NONE        0
 #define SSL_STREAM_TYPE_READ        (1U << 0)
 #define SSL_STREAM_TYPE_WRITE       (1U << 1)
 #define SSL_STREAM_TYPE_BIDI        (SSL_STREAM_TYPE_READ | SSL_STREAM_TYPE_WRITE)
 __owur int SSL_get_stream_type(SSL *s);
 
 __owur uint64_t SSL_get_stream_id(SSL *s);
 __owur int SSL_is_stream_local(SSL *s);
 
 #define SSL_DEFAULT_STREAM_MODE_NONE        0
 #define SSL_DEFAULT_STREAM_MODE_AUTO_BIDI   1
 #define SSL_DEFAULT_STREAM_MODE_AUTO_UNI    2
 __owur int SSL_set_default_stream_mode(SSL *s, uint32_t mode);
 
 #define SSL_STREAM_FLAG_UNI         (1U << 0)
 #define SSL_STREAM_FLAG_NO_BLOCK    (1U << 1)
 #define SSL_STREAM_FLAG_ADVANCE     (1U << 2)
 __owur SSL *SSL_new_stream(SSL *s, uint64_t flags);
 
 #define SSL_INCOMING_STREAM_POLICY_AUTO      0
 #define SSL_INCOMING_STREAM_POLICY_ACCEPT    1
 #define SSL_INCOMING_STREAM_POLICY_REJECT    2
 __owur int SSL_set_incoming_stream_policy(SSL *s, int policy, uint64_t aec);
 
 #define SSL_ACCEPT_STREAM_NO_BLOCK      (1U << 0)
 __owur SSL *SSL_accept_stream(SSL *s, uint64_t flags);
 __owur size_t SSL_get_accept_stream_queue_len(SSL *s);
 
 # ifndef OPENSSL_NO_QUIC
 __owur int SSL_inject_net_dgram(SSL *s, const unsigned char *buf,
                                 size_t buf_len,
                                 const BIO_ADDR *peer,
                                 const BIO_ADDR *local);
 # endif
 
 typedef struct ssl_shutdown_ex_args_st {
     uint64_t    quic_error_code;
     const char  *quic_reason;
 } SSL_SHUTDOWN_EX_ARGS;
 
 #define SSL_SHUTDOWN_FLAG_RAPID             (1U << 0)
 #define SSL_SHUTDOWN_FLAG_NO_STREAM_FLUSH   (1U << 1)
 #define SSL_SHUTDOWN_FLAG_NO_BLOCK          (1U << 2)
 #define SSL_SHUTDOWN_FLAG_WAIT_PEER         (1U << 3)
 
 __owur int SSL_shutdown_ex(SSL *ssl, uint64_t flags,
                            const SSL_SHUTDOWN_EX_ARGS *args,
                            size_t args_len);
 
 __owur int SSL_stream_conclude(SSL *ssl, uint64_t flags);
 
 typedef struct ssl_stream_reset_args_st {
     uint64_t quic_error_code;
 } SSL_STREAM_RESET_ARGS;
 
 __owur int SSL_stream_reset(SSL *ssl,
                             const SSL_STREAM_RESET_ARGS *args,
                             size_t args_len);
 
 #define SSL_STREAM_STATE_NONE           0
 #define SSL_STREAM_STATE_OK             1
 #define SSL_STREAM_STATE_WRONG_DIR      2
 #define SSL_STREAM_STATE_FINISHED       3
 #define SSL_STREAM_STATE_RESET_LOCAL    4
 #define SSL_STREAM_STATE_RESET_REMOTE   5
 #define SSL_STREAM_STATE_CONN_CLOSED    6
 __owur int SSL_get_stream_read_state(SSL *ssl);
 __owur int SSL_get_stream_write_state(SSL *ssl);
 
 __owur int SSL_get_stream_read_error_code(SSL *ssl, uint64_t *app_error_code);
 __owur int SSL_get_stream_write_error_code(SSL *ssl, uint64_t *app_error_code);
 
 #define SSL_CONN_CLOSE_FLAG_LOCAL       (1U << 0)
 #define SSL_CONN_CLOSE_FLAG_TRANSPORT   (1U << 1)
 
 typedef struct ssl_conn_close_info_st {
     uint64_t    error_code, frame_type;
     const char  *reason;
     size_t      reason_len;
     uint32_t    flags;
 } SSL_CONN_CLOSE_INFO;
 
 __owur int SSL_get_conn_close_info(SSL *ssl,
                                    SSL_CONN_CLOSE_INFO *info,
                                    size_t info_len);
 
 # define SSL_VALUE_CLASS_GENERIC                0
 # define SSL_VALUE_CLASS_FEATURE_REQUEST        1
 # define SSL_VALUE_CLASS_FEATURE_PEER_REQUEST   2
 # define SSL_VALUE_CLASS_FEATURE_NEGOTIATED     3
 
 # define SSL_VALUE_NONE                             0
 # define SSL_VALUE_QUIC_STREAM_BIDI_LOCAL_AVAIL     1
 # define SSL_VALUE_QUIC_STREAM_BIDI_REMOTE_AVAIL    2
 # define SSL_VALUE_QUIC_STREAM_UNI_LOCAL_AVAIL      3
 # define SSL_VALUE_QUIC_STREAM_UNI_REMOTE_AVAIL     4
 # define SSL_VALUE_QUIC_IDLE_TIMEOUT                5
 # define SSL_VALUE_EVENT_HANDLING_MODE              6
 # define SSL_VALUE_STREAM_WRITE_BUF_SIZE            7
 # define SSL_VALUE_STREAM_WRITE_BUF_USED            8
 # define SSL_VALUE_STREAM_WRITE_BUF_AVAIL           9
 
 # define SSL_VALUE_EVENT_HANDLING_MODE_INHERIT      0
 # define SSL_VALUE_EVENT_HANDLING_MODE_IMPLICIT     1
 # define SSL_VALUE_EVENT_HANDLING_MODE_EXPLICIT     2
 
 int SSL_get_value_uint(SSL *s, uint32_t class_, uint32_t id, uint64_t *v);
 int SSL_set_value_uint(SSL *s, uint32_t class_, uint32_t id, uint64_t v);
 
 # define SSL_get_generic_value_uint(ssl, id, v) \
     SSL_get_value_uint((ssl), SSL_VALUE_CLASS_GENERIC, (id), (v))
 # define SSL_set_generic_value_uint(ssl, id, v) \
     SSL_set_value_uint((ssl), SSL_VALUE_CLASS_GENERIC, (id), (v))
 # define SSL_get_feature_request_uint(ssl, id, v) \
     SSL_get_value_uint((ssl), SSL_VALUE_CLASS_FEATURE_REQUEST, (id), (v))
 # define SSL_set_feature_request_uint(ssl, id, v) \
     SSL_set_value_uint((ssl), SSL_VALUE_CLASS_FEATURE_REQUEST, (id), (v))
 # define SSL_get_feature_peer_request_uint(ssl, id, v) \
     SSL_get_value_uint((ssl), SSL_VALUE_CLASS_FEATURE_PEER_REQUEST, (id), (v))
 # define SSL_get_feature_negotiated_uint(ssl, id, v) \
     SSL_get_value_uint((ssl), SSL_VALUE_CLASS_FEATURE_NEGOTIATED, (id), (v))
 
 # define SSL_get_quic_stream_bidi_local_avail(ssl, value) \
     SSL_get_generic_value_uint((ssl), SSL_VALUE_QUIC_STREAM_BIDI_LOCAL_AVAIL, \
                                (value))
 # define SSL_get_quic_stream_bidi_remote_avail(ssl, value) \
     SSL_get_generic_value_uint((ssl), SSL_VALUE_QUIC_STREAM_BIDI_REMOTE_AVAIL, \
                                (value))
 # define SSL_get_quic_stream_uni_local_avail(ssl, value) \
     SSL_get_generic_value_uint((ssl), SSL_VALUE_QUIC_STREAM_UNI_LOCAL_AVAIL, \
                                (value))
 # define SSL_get_quic_stream_uni_remote_avail(ssl, value) \
     SSL_get_generic_value_uint((ssl), SSL_VALUE_QUIC_STREAM_UNI_REMOTE_AVAIL, \
                                (value))
 
 # define SSL_get_event_handling_mode(ssl, value) \
     SSL_get_generic_value_uint((ssl), SSL_VALUE_EVENT_HANDLING_MODE, \
                                (value))
 # define SSL_set_event_handling_mode(ssl, value) \
     SSL_set_generic_value_uint((ssl), SSL_VALUE_EVENT_HANDLING_MODE, \
                                (value))
 
 # define SSL_get_stream_write_buf_size(ssl, value) \
     SSL_get_generic_value_uint((ssl), SSL_VALUE_STREAM_WRITE_BUF_SIZE, \
                                (value))
 # define SSL_get_stream_write_buf_used(ssl, value) \
     SSL_get_generic_value_uint((ssl), SSL_VALUE_STREAM_WRITE_BUF_USED, \
                                (value))
 # define SSL_get_stream_write_buf_avail(ssl, value) \
     SSL_get_generic_value_uint((ssl), SSL_VALUE_STREAM_WRITE_BUF_AVAIL, \
                                (value))
 
 # define SSL_POLL_EVENT_NONE        0
 
 # define SSL_POLL_EVENT_F           (1U <<  0) /* F   (Failure) */
 # define SSL_POLL_EVENT_EL          (1U <<  1) /* EL  (Exception on Listener) */
 # define SSL_POLL_EVENT_EC          (1U <<  2) /* EC  (Exception on Conn) */
 # define SSL_POLL_EVENT_ECD         (1U <<  3) /* ECD (Exception on Conn Drained) */
 # define SSL_POLL_EVENT_ER          (1U <<  4) /* ER  (Exception on Read) */
 # define SSL_POLL_EVENT_EW          (1U <<  5) /* EW  (Exception on Write) */
 # define SSL_POLL_EVENT_R           (1U <<  6) /* R   (Readable) */
 # define SSL_POLL_EVENT_W           (1U <<  7) /* W   (Writable) */
 # define SSL_POLL_EVENT_IC          (1U <<  8) /* IC  (Incoming Connection) */
 # define SSL_POLL_EVENT_ISB         (1U <<  9) /* ISB (Incoming Stream: Bidi) */
 # define SSL_POLL_EVENT_ISU         (1U << 10) /* ISU (Incoming Stream: Uni) */
 # define SSL_POLL_EVENT_OSB         (1U << 11) /* OSB (Outgoing Stream: Bidi) */
 # define SSL_POLL_EVENT_OSU         (1U << 12) /* OSU (Outgoing Stream: Uni) */
 
 # define SSL_POLL_EVENT_RW          (SSL_POLL_EVENT_R | SSL_POLL_EVENT_W)
 # define SSL_POLL_EVENT_RE          (SSL_POLL_EVENT_R | SSL_POLL_EVENT_ER)
 # define SSL_POLL_EVENT_WE          (SSL_POLL_EVENT_W | SSL_POLL_EVENT_EW)
 # define SSL_POLL_EVENT_RWE         (SSL_POLL_EVENT_RE | SSL_POLL_EVENT_WE)
 # define SSL_POLL_EVENT_E           (SSL_POLL_EVENT_EL | SSL_POLL_EVENT_EC \
                                      | SSL_POLL_EVENT_ER | SSL_POLL_EVENT_EW)
 # define SSL_POLL_EVENT_IS          (SSL_POLL_EVENT_ISB | SSL_POLL_EVENT_ISU)
 # define SSL_POLL_EVENT_ISE         (SSL_POLL_EVENT_IS | SSL_POLL_EVENT_EC)
 # define SSL_POLL_EVENT_I           (SSL_POLL_EVENT_IS | SSL_POLL_EVENT_IC)
 # define SSL_POLL_EVENT_OS          (SSL_POLL_EVENT_OSB | SSL_POLL_EVENT_OSU)
 # define SSL_POLL_EVENT_OSE         (SSL_POLL_EVENT_OS | SSL_POLL_EVENT_EC)
 
 typedef struct ssl_poll_item_st {
     BIO_POLL_DESCRIPTOR desc;
     uint64_t            events, revents;
 } SSL_POLL_ITEM;
 
 # define SSL_POLL_FLAG_NO_HANDLE_EVENTS  (1U << 0)
 
 __owur int SSL_poll(SSL_POLL_ITEM *items,
                     size_t num_items,
                     size_t stride,
                     const struct timeval *timeout,
                     uint64_t flags,
                     size_t *result_count);
 
 static ossl_inline ossl_unused BIO_POLL_DESCRIPTOR
 SSL_as_poll_descriptor(SSL *s)
 {
     BIO_POLL_DESCRIPTOR d;
 
     d.type      = BIO_POLL_DESCRIPTOR_TYPE_SSL;
     d.value.ssl = s;
     return d;
 }
 
 # ifndef OPENSSL_NO_DEPRECATED_1_1_0
 #  define SSL_cache_hit(s) SSL_session_reused(s)
 # endif
 
 __owur int SSL_session_reused(const SSL *s);
 __owur int SSL_is_server(const SSL *s);
 
 __owur __owur SSL_CONF_CTX *SSL_CONF_CTX_new(void);
 int SSL_CONF_CTX_finish(SSL_CONF_CTX *cctx);
 void SSL_CONF_CTX_free(SSL_CONF_CTX *cctx);
 unsigned int SSL_CONF_CTX_set_flags(SSL_CONF_CTX *cctx, unsigned int flags);
 __owur unsigned int SSL_CONF_CTX_clear_flags(SSL_CONF_CTX *cctx,
                                              unsigned int flags);
 __owur int SSL_CONF_CTX_set1_prefix(SSL_CONF_CTX *cctx, const char *pre);
 
 void SSL_CONF_CTX_set_ssl(SSL_CONF_CTX *cctx, SSL *ssl);
 void SSL_CONF_CTX_set_ssl_ctx(SSL_CONF_CTX *cctx, SSL_CTX *ctx);
 
 __owur int SSL_CONF_cmd(SSL_CONF_CTX *cctx, const char *cmd, const char *value);
 __owur int SSL_CONF_cmd_argv(SSL_CONF_CTX *cctx, int *pargc, char ***pargv);
 __owur int SSL_CONF_cmd_value_type(SSL_CONF_CTX *cctx, const char *cmd);
 
 void SSL_add_ssl_module(void);
 int SSL_config(SSL *s, const char *name);
 int SSL_CTX_config(SSL_CTX *ctx, const char *name);
 
 # ifndef OPENSSL_NO_SSL_TRACE
 void SSL_trace(int write_p, int version, int content_type,
                const void *buf, size_t len, SSL *ssl, void *arg);
 # endif
 
 # ifndef OPENSSL_NO_SOCK
 int DTLSv1_listen(SSL *s, BIO_ADDR *client);
 # endif
 
 # ifndef OPENSSL_NO_CT
 
 /*
  * A callback for verifying that the received SCTs are sufficient.
  * Expected to return 1 if they are sufficient, otherwise 0.
  * May return a negative integer if an error occurs.
  * A connection should be aborted if the SCTs are deemed insufficient.
  */
 typedef int (*ssl_ct_validation_cb)(const CT_POLICY_EVAL_CTX *ctx,
                                     const STACK_OF(SCT) *scts, void *arg);
 
 /*
  * Sets a |callback| that is invoked upon receipt of ServerHelloDone to validate
  * the received SCTs.
  * If the callback returns a non-positive result, the connection is terminated.
  * Call this function before beginning a handshake.
  * If a NULL |callback| is provided, SCT validation is disabled.
  * |arg| is arbitrary userdata that will be passed to the callback whenever it
  * is invoked. Ownership of |arg| remains with the caller.
  *
  * NOTE: A side-effect of setting a CT callback is that an OCSP stapled response
  *       will be requested.
  */
 int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
                                    void *arg);
 int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
                                        ssl_ct_validation_cb callback,
                                        void *arg);
 #define SSL_disable_ct(s) \
         ((void) SSL_set_validation_callback((s), NULL, NULL))
 #define SSL_CTX_disable_ct(ctx) \
         ((void) SSL_CTX_set_validation_callback((ctx), NULL, NULL))
 
 /*
  * The validation type enumerates the available behaviours of the built-in SSL
  * CT validation callback selected via SSL_enable_ct() and SSL_CTX_enable_ct().
  * The underlying callback is a static function in libssl.
  */
 enum {
     SSL_CT_VALIDATION_PERMISSIVE = 0,
     SSL_CT_VALIDATION_STRICT
 };
 
 /*
  * Enable CT by setting up a callback that implements one of the built-in
  * validation variants.  The SSL_CT_VALIDATION_PERMISSIVE variant always
  * continues the handshake, the application can make appropriate decisions at
  * handshake completion.  The SSL_CT_VALIDATION_STRICT variant requires at
  * least one valid SCT, or else handshake termination will be requested.  The
  * handshake may continue anyway if SSL_VERIFY_NONE is in effect.
  */
 int SSL_enable_ct(SSL *s, int validation_mode);
 int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode);
 
 /*
  * Report whether a non-NULL callback is enabled.
  */
 int SSL_ct_is_enabled(const SSL *s);
 int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx);
 
 /* Gets the SCTs received from a connection */
 const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s);
 
 /*
  * Loads the CT log list from the default location.
  * If a CTLOG_STORE has previously been set using SSL_CTX_set_ctlog_store,
  * the log information loaded from this file will be appended to the
  * CTLOG_STORE.
  * Returns 1 on success, 0 otherwise.
  */
 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx);
 
 /*
  * Loads the CT log list from the specified file path.
  * If a CTLOG_STORE has previously been set using SSL_CTX_set_ctlog_store,
  * the log information loaded from this file will be appended to the
  * CTLOG_STORE.
  * Returns 1 on success, 0 otherwise.
  */
 int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path);
 
 /*
  * Sets the CT log list used by all SSL connections created from this SSL_CTX.
  * Ownership of the CTLOG_STORE is transferred to the SSL_CTX.
  */
 void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE *logs);
 
 /*
  * Gets the CT log list used by all SSL connections created from this SSL_CTX.
  * This will be NULL unless one of the following functions has been called:
  * - SSL_CTX_set_default_ctlog_list_file
  * - SSL_CTX_set_ctlog_list_file
  * - SSL_CTX_set_ctlog_store
  */
 const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx);
 
 # endif /* OPENSSL_NO_CT */
 
 /* What the "other" parameter contains in security callback */
 /* Mask for type */
 # define SSL_SECOP_OTHER_TYPE    0xffff0000
 # define SSL_SECOP_OTHER_NONE    0
 # define SSL_SECOP_OTHER_CIPHER  (1 << 16)
 # define SSL_SECOP_OTHER_CURVE   (2 << 16)
 # define SSL_SECOP_OTHER_DH      (3 << 16)
 # define SSL_SECOP_OTHER_PKEY    (4 << 16)
 # define SSL_SECOP_OTHER_SIGALG  (5 << 16)
 # define SSL_SECOP_OTHER_CERT    (6 << 16)
 
 /* Indicated operation refers to peer key or certificate */
 # define SSL_SECOP_PEER          0x1000
 
 /* Values for "op" parameter in security callback */
 
 /* Called to filter ciphers */
 /* Ciphers client supports */
 # define SSL_SECOP_CIPHER_SUPPORTED      (1 | SSL_SECOP_OTHER_CIPHER)
 /* Cipher shared by client/server */
 # define SSL_SECOP_CIPHER_SHARED         (2 | SSL_SECOP_OTHER_CIPHER)
 /* Sanity check of cipher server selects */
 # define SSL_SECOP_CIPHER_CHECK          (3 | SSL_SECOP_OTHER_CIPHER)
 /* Curves supported by client */
 # define SSL_SECOP_CURVE_SUPPORTED       (4 | SSL_SECOP_OTHER_CURVE)
 /* Curves shared by client/server */
 # define SSL_SECOP_CURVE_SHARED          (5 | SSL_SECOP_OTHER_CURVE)
 /* Sanity check of curve server selects */
 # define SSL_SECOP_CURVE_CHECK           (6 | SSL_SECOP_OTHER_CURVE)
 /* Temporary DH key */
 # define SSL_SECOP_TMP_DH                (7 | SSL_SECOP_OTHER_PKEY)
 /* SSL/TLS version */
 # define SSL_SECOP_VERSION               (9 | SSL_SECOP_OTHER_NONE)
 /* Session tickets */
 # define SSL_SECOP_TICKET                (10 | SSL_SECOP_OTHER_NONE)
 /* Supported signature algorithms sent to peer */
 # define SSL_SECOP_SIGALG_SUPPORTED      (11 | SSL_SECOP_OTHER_SIGALG)
 /* Shared signature algorithm */
 # define SSL_SECOP_SIGALG_SHARED         (12 | SSL_SECOP_OTHER_SIGALG)
 /* Sanity check signature algorithm allowed */
 # define SSL_SECOP_SIGALG_CHECK          (13 | SSL_SECOP_OTHER_SIGALG)
 /* Used to get mask of supported public key signature algorithms */
 # define SSL_SECOP_SIGALG_MASK           (14 | SSL_SECOP_OTHER_SIGALG)
 /* Use to see if compression is allowed */
 # define SSL_SECOP_COMPRESSION           (15 | SSL_SECOP_OTHER_NONE)
 /* EE key in certificate */
 # define SSL_SECOP_EE_KEY                (16 | SSL_SECOP_OTHER_CERT)
 /* CA key in certificate */
 # define SSL_SECOP_CA_KEY                (17 | SSL_SECOP_OTHER_CERT)
 /* CA digest algorithm in certificate */
 # define SSL_SECOP_CA_MD                 (18 | SSL_SECOP_OTHER_CERT)
 /* Peer EE key in certificate */
 # define SSL_SECOP_PEER_EE_KEY           (SSL_SECOP_EE_KEY | SSL_SECOP_PEER)
 /* Peer CA key in certificate */
 # define SSL_SECOP_PEER_CA_KEY           (SSL_SECOP_CA_KEY | SSL_SECOP_PEER)
 /* Peer CA digest algorithm in certificate */
 # define SSL_SECOP_PEER_CA_MD            (SSL_SECOP_CA_MD | SSL_SECOP_PEER)
 
 void SSL_set_security_level(SSL *s, int level);
 __owur int SSL_get_security_level(const SSL *s);
 void SSL_set_security_callback(SSL *s,
                                int (*cb) (const SSL *s, const SSL_CTX *ctx,
                                           int op, int bits, int nid,
                                           void *other, void *ex));
 int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
                                                 const SSL_CTX *ctx, int op,
                                                 int bits, int nid, void *other,
                                                 void *ex);
 void SSL_set0_security_ex_data(SSL *s, void *ex);
 __owur void *SSL_get0_security_ex_data(const SSL *s);
 
 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level);
 __owur int SSL_CTX_get_security_level(const SSL_CTX *ctx);
 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
                                    int (*cb) (const SSL *s, const SSL_CTX *ctx,
                                               int op, int bits, int nid,
                                               void *other, void *ex));
 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
                                                           const SSL_CTX *ctx,
                                                           int op, int bits,
                                                           int nid,
                                                           void *other,
                                                           void *ex);
 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex);
 __owur void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx);
 
 /* OPENSSL_INIT flag 0x010000 reserved for internal use */
 # define OPENSSL_INIT_NO_LOAD_SSL_STRINGS    0x00100000L
 # define OPENSSL_INIT_LOAD_SSL_STRINGS       0x00200000L
 
 # define OPENSSL_INIT_SSL_DEFAULT \
         (OPENSSL_INIT_LOAD_SSL_STRINGS | OPENSSL_INIT_LOAD_CRYPTO_STRINGS)
 
 int OPENSSL_init_ssl(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings);
 
 # ifndef OPENSSL_NO_UNIT_TEST
 __owur const struct openssl_ssl_test_functions *SSL_test_functions(void);
 # endif
 
 __owur int SSL_free_buffers(SSL *ssl);
 __owur int SSL_alloc_buffers(SSL *ssl);
 
 /* Status codes passed to the decrypt session ticket callback. Some of these
  * are for internal use only and are never passed to the callback. */
 typedef int SSL_TICKET_STATUS;
 
 /* Support for ticket appdata */
 /* fatal error, malloc failure */
 # define SSL_TICKET_FATAL_ERR_MALLOC 0
 /* fatal error, either from parsing or decrypting the ticket */
 # define SSL_TICKET_FATAL_ERR_OTHER  1
 /* No ticket present */
 # define SSL_TICKET_NONE             2
 /* Empty ticket present */
 # define SSL_TICKET_EMPTY            3
 /* the ticket couldn't be decrypted */
 # define SSL_TICKET_NO_DECRYPT       4
 /* a ticket was successfully decrypted */
 # define SSL_TICKET_SUCCESS          5
 /* same as above but the ticket needs to be renewed */
 # define SSL_TICKET_SUCCESS_RENEW    6
 
 /* Return codes for the decrypt session ticket callback */
 typedef int SSL_TICKET_RETURN;
 
 /* An error occurred */
 #define SSL_TICKET_RETURN_ABORT             0
 /* Do not use the ticket, do not send a renewed ticket to the client */
 #define SSL_TICKET_RETURN_IGNORE            1
 /* Do not use the ticket, send a renewed ticket to the client */
 #define SSL_TICKET_RETURN_IGNORE_RENEW      2
 /* Use the ticket, do not send a renewed ticket to the client */
 #define SSL_TICKET_RETURN_USE               3
 /* Use the ticket, send a renewed ticket to the client */
 #define SSL_TICKET_RETURN_USE_RENEW         4
 
 typedef int (*SSL_CTX_generate_session_ticket_fn)(SSL *s, void *arg);
 typedef SSL_TICKET_RETURN (*SSL_CTX_decrypt_session_ticket_fn)(SSL *s, SSL_SESSION *ss,
                                                                const unsigned char *keyname,
                                                                size_t keyname_length,
                                                                SSL_TICKET_STATUS status,
                                                                void *arg);
 int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
                                   SSL_CTX_generate_session_ticket_fn gen_cb,
                                   SSL_CTX_decrypt_session_ticket_fn dec_cb,
                                   void *arg);
 int SSL_SESSION_set1_ticket_appdata(SSL_SESSION *ss, const void *data, size_t len);
 int SSL_SESSION_get0_ticket_appdata(SSL_SESSION *ss, void **data, size_t *len);
 
 typedef unsigned int (*DTLS_timer_cb)(SSL *s, unsigned int timer_us);
 
 void DTLS_set_timer_cb(SSL *s, DTLS_timer_cb cb);
 
 
 typedef int (*SSL_allow_early_data_cb_fn)(SSL *s, void *arg);
 void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx,
                                      SSL_allow_early_data_cb_fn cb,
                                      void *arg);
 void SSL_set_allow_early_data_cb(SSL *s,
                                  SSL_allow_early_data_cb_fn cb,
                                  void *arg);
 
 /* store the default cipher strings inside the library */
 const char *OSSL_default_cipher_list(void);
 const char *OSSL_default_ciphersuites(void);
 
 /* RFC8879 Certificate compression APIs */
 
 int SSL_CTX_compress_certs(SSL_CTX *ctx, int alg);
 int SSL_compress_certs(SSL *ssl, int alg);
 
 int SSL_CTX_set1_cert_comp_preference(SSL_CTX *ctx, int *algs, size_t len);
 int SSL_set1_cert_comp_preference(SSL *ssl, int *algs, size_t len);
 
 int SSL_CTX_set1_compressed_cert(SSL_CTX *ctx, int algorithm, unsigned char *comp_data,
                                 size_t comp_length, size_t orig_length);
 int SSL_set1_compressed_cert(SSL *ssl, int algorithm, unsigned char *comp_data,
                             size_t comp_length, size_t orig_length);
 size_t SSL_CTX_get1_compressed_cert(SSL_CTX *ctx, int alg, unsigned char **data, size_t *orig_len);
 size_t SSL_get1_compressed_cert(SSL *ssl, int alg, unsigned char **data, size_t *orig_len);
 
 __owur int SSL_add_expected_rpk(SSL *s, EVP_PKEY *rpk);
 __owur EVP_PKEY *SSL_get0_peer_rpk(const SSL *s);
 __owur EVP_PKEY *SSL_SESSION_get0_peer_rpk(SSL_SESSION *s);
 __owur int SSL_get_negotiated_client_cert_type(const SSL *s);
 __owur int SSL_get_negotiated_server_cert_type(const SSL *s);
 
 __owur int SSL_set1_client_cert_type(SSL *s, const unsigned char *val, size_t len);
 __owur int SSL_set1_server_cert_type(SSL *s, const unsigned char *val, size_t len);
 __owur int SSL_CTX_set1_client_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len);
 __owur int SSL_CTX_set1_server_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len);
 __owur int SSL_get0_client_cert_type(const SSL *s, unsigned char **t, size_t *len);
 __owur int SSL_get0_server_cert_type(const SSL *s, unsigned char **t, size_t *len);
 __owur int SSL_CTX_get0_client_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len);
 __owur int SSL_CTX_get0_server_cert_type(const SSL_CTX *s, unsigned char **t, size_t *len);
 
 # ifdef  __cplusplus
 }
 # endif
 #endif