diff options
Diffstat (limited to 'openssl/include/openssl/ssl.h')
| -rw-r--r-- | openssl/include/openssl/ssl.h | 2484 |
1 files changed, 2484 insertions, 0 deletions
diff --git a/openssl/include/openssl/ssl.h b/openssl/include/openssl/ssl.h new file mode 100644 index 00000000..353e5376 --- /dev/null +++ b/openssl/include/openssl/ssl.h @@ -0,0 +1,2484 @@ +/*
+ * Copyright 1995-2020 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/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>
+
+#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
+# define SSL_MAX_MASTER_KEY_LENGTH 48
+
+/* 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
+ */
+# if !defined(OPENSSL_NO_CHACHA) && !defined(OPENSSL_NO_POLY1305)
+# define TLS_DEFAULT_CIPHERSUITES "TLS_AES_256_GCM_SHA384:" \
+ "TLS_CHACHA20_POLY1305_SHA256:" \
+ "TLS_AES_128_GCM_SHA256"
+# else
+# define TLS_DEFAULT_CIPHERSUITES "TLS_AES_256_GCM_SHA384:" \
+ "TLS_AES_128_GCM_SHA256"
+# endif
+# 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;
+typedef struct ssl_comp_st SSL_COMP;
+
+STACK_OF(SSL_CIPHER);
+STACK_OF(SSL_COMP);
+
+/* 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;
+DEFINE_OR_DECLARE_STACK_OF(SRTP_PROTECTION_PROFILE)
+
+
+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 0x0001
+/* This extension is only allowed in DTLS */
+#define SSL_EXT_DTLS_ONLY 0x0002
+/* Some extensions may be allowed in DTLS but we don't implement them for it */
+#define SSL_EXT_TLS_IMPLEMENTATION_ONLY 0x0004
+/* Most extensions are not defined for SSLv3 but EXT_TYPE_renegotiate is */
+#define SSL_EXT_SSL3_ALLOWED 0x0008
+/* Extension is only defined for TLS1.2 and below */
+#define SSL_EXT_TLS1_2_AND_BELOW_ONLY 0x0010
+/* Extension is only defined for TLS1.3 and above */
+#define SSL_EXT_TLS1_3_ONLY 0x0020
+/* Ignore this extension during parsing if we are resuming */
+#define SSL_EXT_IGNORE_ON_RESUMPTION 0x0040
+#define SSL_EXT_CLIENT_HELLO 0x0080
+/* Really means TLS1.2 or below */
+#define SSL_EXT_TLS1_2_SERVER_HELLO 0x0100
+#define SSL_EXT_TLS1_3_SERVER_HELLO 0x0200
+#define SSL_EXT_TLS1_3_ENCRYPTED_EXTENSIONS 0x0400
+#define SSL_EXT_TLS1_3_HELLO_RETRY_REQUEST 0x0800
+#define SSL_EXT_TLS1_3_CERTIFICATE 0x1000
+#define SSL_EXT_TLS1_3_NEW_SESSION_TICKET 0x2000
+#define SSL_EXT_TLS1_3_CERTIFICATE_REQUEST 0x4000
+
+/* 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);
+
+/*
+ * Some values are reserved until OpenSSL 3.0.0 because they were previously
+ * included in SSL_OP_ALL in a 1.1.x release.
+ */
+
+/* Disable Extended master secret */
+# define SSL_OP_NO_EXTENDED_MASTER_SECRET 0x00000001U
+
+/* Reserved value (until OpenSSL 3.0.0) 0x00000002U */
+
+/* Allow initial connection to servers that don't support RI */
+# define SSL_OP_LEGACY_SERVER_CONNECT 0x00000004U
+
+# define SSL_OP_TLSEXT_PADDING 0x00000010U
+# define SSL_OP_SAFARI_ECDHE_ECDSA_BUG 0x00000040U
+# define SSL_OP_IGNORE_UNEXPECTED_EOF 0x00000080U
+
+# define SSL_OP_DISABLE_TLSEXT_CA_NAMES 0x00000200U
+
+/* In TLSv1.3 allow a non-(ec)dhe based kex_mode */
+# define SSL_OP_ALLOW_NO_DHE_KEX 0x00000400U
+
+/*
+ * 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 0x00000800U
+
+/* DTLS options */
+# define SSL_OP_NO_QUERY_MTU 0x00001000U
+/* Turn on Cookie Exchange (on relevant for servers) */
+# define SSL_OP_COOKIE_EXCHANGE 0x00002000U
+/* Don't use RFC4507 ticket extension */
+# define SSL_OP_NO_TICKET 0x00004000U
+# ifndef OPENSSL_NO_DTLS1_METHOD
+/* Use Cisco's "speshul" version of DTLS_BAD_VER
+ * (only with deprecated DTLSv1_client_method()) */
+# define SSL_OP_CISCO_ANYCONNECT 0x00008000U
+# endif
+
+/* As server, disallow session resumption on renegotiation */
+# define SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION 0x00010000U
+/* Don't use compression even if supported */
+# define SSL_OP_NO_COMPRESSION 0x00020000U
+/* Permit unsafe legacy renegotiation */
+# define SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 0x00040000U
+/* Disable encrypt-then-mac */
+# define SSL_OP_NO_ENCRYPT_THEN_MAC 0x00080000U
+
+/*
+ * 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 0x00100000U
+
+/* Prioritize Chacha20Poly1305 when client does.
+ * Modifies SSL_OP_CIPHER_SERVER_PREFERENCE */
+# define SSL_OP_PRIORITIZE_CHACHA 0x00200000U
+
+/*
+ * Set on servers to choose the cipher according to the server's preferences
+ */
+# define SSL_OP_CIPHER_SERVER_PREFERENCE 0x00400000U
+/*
+ * 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 0x00800000U
+
+/*
+ * 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 0x01000000U
+
+# define SSL_OP_NO_SSLv3 0x02000000U
+# define SSL_OP_NO_TLSv1 0x04000000U
+# define SSL_OP_NO_TLSv1_2 0x08000000U
+# define SSL_OP_NO_TLSv1_1 0x10000000U
+# define SSL_OP_NO_TLSv1_3 0x20000000U
+
+# define SSL_OP_NO_DTLSv1 0x04000000U
+# define SSL_OP_NO_DTLSv1_2 0x08000000U
+
+# 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)
+
+/* Disallow all renegotiation */
+# define SSL_OP_NO_RENEGOTIATION 0x40000000U
+
+/*
+ * 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 0x80000000U
+
+/*
+ * SSL_OP_ALL: various bug workarounds that should be rather harmless.
+ * This used to be 0x000FFFFFL before 0.9.7.
+ * This used to be 0x80000BFFU before 1.1.1.
+ */
+# define SSL_OP_ALL (SSL_OP_CRYPTOPRO_TLSEXT_BUG|\
+ SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS|\
+ SSL_OP_LEGACY_SERVER_CONNECT|\
+ SSL_OP_TLSEXT_PADDING|\
+ SSL_OP_SAFARI_ECDHE_ECDSA_BUG)
+
+/* OBSOLETE OPTIONS: retained for compatibility */
+
+/* Removed from OpenSSL 1.1.0. Was 0x00000001L */
+/* Related to removed SSLv2. */
+# define SSL_OP_MICROSOFT_SESS_ID_BUG 0x0
+/* Removed from OpenSSL 1.1.0. Was 0x00000002L */
+/* Related to removed SSLv2. */
+# define SSL_OP_NETSCAPE_CHALLENGE_BUG 0x0
+/* Removed from OpenSSL 0.9.8q and 1.0.0c. Was 0x00000008L */
+/* Dead forever, see CVE-2010-4180 */
+# define SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG 0x0
+/* Removed from OpenSSL 1.0.1h and 1.0.2. Was 0x00000010L */
+/* Refers to ancient SSLREF and SSLv2. */
+# define SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG 0x0
+/* Removed from OpenSSL 1.1.0. Was 0x00000020 */
+# define SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER 0x0
+/* Removed from OpenSSL 0.9.7h and 0.9.8b. Was 0x00000040L */
+# define SSL_OP_MSIE_SSLV2_RSA_PADDING 0x0
+/* Removed from OpenSSL 1.1.0. Was 0x00000080 */
+/* Ancient SSLeay version. */
+# define SSL_OP_SSLEAY_080_CLIENT_DH_BUG 0x0
+/* Removed from OpenSSL 1.1.0. Was 0x00000100L */
+# define SSL_OP_TLS_D5_BUG 0x0
+/* Removed from OpenSSL 1.1.0. Was 0x00000200L */
+# define SSL_OP_TLS_BLOCK_PADDING_BUG 0x0
+/* Removed from OpenSSL 1.1.0. Was 0x00080000L */
+# define SSL_OP_SINGLE_ECDH_USE 0x0
+/* Removed from OpenSSL 1.1.0. Was 0x00100000L */
+# define SSL_OP_SINGLE_DH_USE 0x0
+/* Removed from OpenSSL 1.0.1k and 1.0.2. Was 0x00200000L */
+# define SSL_OP_EPHEMERAL_RSA 0x0
+/* Removed from OpenSSL 1.1.0. Was 0x01000000L */
+# define SSL_OP_NO_SSLv2 0x0
+/* Removed from OpenSSL 1.0.1. Was 0x08000000L */
+# define SSL_OP_PKCS1_CHECK_1 0x0
+/* Removed from OpenSSL 1.0.1. Was 0x10000000L */
+# define SSL_OP_PKCS1_CHECK_2 0x0
+/* Removed from OpenSSL 1.1.0. Was 0x20000000L */
+# define SSL_OP_NETSCAPE_CA_DN_BUG 0x0
+/* Removed from OpenSSL 1.1.0. Was 0x40000000L */
+# 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
+/*
+ * Don't use the kernel TLS data-path for sending.
+ */
+# define SSL_MODE_NO_KTLS_TX 0x00000200U
+/*
+ * 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
+/*
+ * Don't use the kernel TLS data-path for receiving.
+ */
+# define SSL_MODE_NO_KTLS_RX 0x00000800U
+
+/* 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
+
+# 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.
+ */
+
+unsigned long SSL_CTX_get_options(const SSL_CTX *ctx);
+unsigned long SSL_get_options(const SSL *s);
+unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op);
+unsigned long SSL_clear_options(SSL *s, unsigned long op);
+unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op);
+unsigned long SSL_set_options(SSL *s, unsigned long 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 */
+__owur int SSL_SRP_CTX_init(SSL *s);
+__owur int SSL_CTX_SRP_CTX_init(SSL_CTX *ctx);
+int SSL_SRP_CTX_free(SSL *ctx);
+int SSL_CTX_SRP_CTX_free(SSL_CTX *ctx);
+__owur int SSL_srp_server_param_with_username(SSL *s, int *ad);
+__owur int SRP_Calc_A_param(SSL *s);
+
+# 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)
+
+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 128
+# define PSK_MAX_PSK_LEN 256
+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
+
+/* 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_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 */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * These need to be after the above set of includes due to a compiler bug
+ * in VisualStudio 2015
+ */
+DEFINE_OR_DECLARE_STACK_OF(SSL_CIPHER)
+DEFINE_OR_DECLARE_STACK_OF(SSL_COMP)
+
+/* 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)))
+DEPRECATEDIN_1_1_0(void SSL_set_debug(SSL *s, int debug))
+
+/* 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_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_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_KEY_EXCH,
+ TLS_ST_SW_CERT_REQ,
+ TLS_ST_SW_SRVR_DONE,
+ TLS_ST_SR_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_CTRL_SET_TMP_DH 3
+# define SSL_CTRL_SET_TMP_ECDH 4
+# define SSL_CTRL_SET_TMP_DH_CB 6
+# 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_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)
+# define SSL_CTX_set_tmp_dh(ctx,dh) \
+ SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_DH,0,(char *)(dh))
+# 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)
+# define SSL_set_tmp_dh(ssl,dh) \
+ SSL_ctrl(ssl,SSL_CTRL_SET_TMP_DH,0,(char *)(dh))
+# 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_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_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_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_get1_groups(s, glist) \
+ SSL_ctrl(s,SSL_CTRL_GET_GROUPS,0,(int*)(glist))
+# 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)
+
+/* 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)
+
+/*
+ * 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_with_libctx(OPENSSL_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);
+
+void SSL_CTX_flush_sessions(SSL_CTX *ctx, long 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_RSA
+__owur int SSL_use_RSAPrivateKey(SSL *ssl, RSA *rsa);
+__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_RSA
+__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_RSA
+__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 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);
+__owur long SSL_SESSION_get_time(const SSL_SESSION *s);
+__owur long SSL_SESSION_set_time(SSL_SESSION *s, long t);
+__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 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);
+
+# ifdef OPENSSL_X509_H
+__owur X509 *SSL_get_peer_certificate(const SSL *s);
+# 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_RSA
+__owur int SSL_CTX_use_RSAPrivateKey(SSL_CTX *ctx, RSA *rsa);
+__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);
+__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, unsigned const 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, unsigned const 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
+int SSL_CTX_set_srp_username(SSL_CTX *ctx, char *name);
+int SSL_CTX_set_srp_password(SSL_CTX *ctx, char *password);
+int SSL_CTX_set_srp_strength(SSL_CTX *ctx, int strength);
+int SSL_CTX_set_srp_client_pwd_callback(SSL_CTX *ctx,
+ char *(*cb) (SSL *, void *));
+int SSL_CTX_set_srp_verify_param_callback(SSL_CTX *ctx,
+ int (*cb) (SSL *, void *));
+int SSL_CTX_set_srp_username_callback(SSL_CTX *ctx,
+ int (*cb) (SSL *, int *, void *));
+int SSL_CTX_set_srp_cb_arg(SSL_CTX *ctx, void *arg);
+
+int SSL_set_srp_server_param(SSL *s, const BIGNUM *N, const BIGNUM *g,
+ BIGNUM *sa, BIGNUM *v, char *info);
+int SSL_set_srp_server_param_pw(SSL *s, const char *user, const char *pass,
+ const char *grp);
+
+__owur BIGNUM *SSL_get_srp_g(SSL *s);
+__owur BIGNUM *SSL_get_srp_N(SSL *s);
+
+__owur char *SSL_get_srp_username(SSL *s);
+__owur char *SSL_get_srp_userinfo(SSL *s);
+# 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_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_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);
+
+/* This sets the 'default' SSL version that SSL_new() will create */
+__owur int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth);
+
+# ifndef OPENSSL_NO_SSL3_METHOD
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *SSLv3_method(void)) /* SSLv3 */
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *SSLv3_server_method(void))
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *SSLv3_client_method(void))
+# 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
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_method(void)) /* TLSv1.0 */
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_server_method(void))
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_client_method(void))
+# endif
+
+# ifndef OPENSSL_NO_TLS1_1_METHOD
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_1_method(void)) /* TLSv1.1 */
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_1_server_method(void))
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_1_client_method(void))
+# endif
+
+# ifndef OPENSSL_NO_TLS1_2_METHOD
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_2_method(void)) /* TLSv1.2 */
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_2_server_method(void))
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_2_client_method(void))
+# endif
+
+# ifndef OPENSSL_NO_DTLS1_METHOD
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_method(void)) /* DTLSv1.0 */
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_server_method(void))
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_client_method(void))
+# endif
+
+# ifndef OPENSSL_NO_DTLS1_2_METHOD
+/* DTLSv1.2 */
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_2_method(void))
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_2_server_method(void))
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_2_client_method(void))
+# 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)
+
+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
+/* NB: the |keylength| is only applicable when is_export is true */
+void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
+ DH *(*dh) (SSL *ssl, int is_export,
+ int keylength));
+void SSL_set_tmp_dh_callback(SSL *ssl,
+ DH *(*dh) (SSL *ssl, int is_export,
+ int keylength));
+# 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_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_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);
+
+# 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);
+
+# ifdef __cplusplus
+}
+# endif
+#endif
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