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#ifndef _TLS_H_INCLUDED_
#define _TLS_H_INCLUDED_
/*++
/* NAME
/* tls 3h
/* SUMMARY
/* libtls internal interfaces
/* SYNOPSIS
/* #include <tls.h>
/* DESCRIPTION
/* .nf
/*
* Utility library.
*/
#include <name_code.h>
#include <argv.h>
/*
* TLS enforcement levels. Non-sentinel values may also be used to indicate
* the actual security level of a session.
*
* XXX TLS_LEV_NOTFOUND no longer belongs in this list. The SMTP client will
* have to use something else to report that policy table lookup failed.
*
* The order of levels matters, but we hide most of the details in macros.
*
* "dane" vs. "fingerprint", both must lie between "encrypt" and "verify".
*
* - With "may" and higher, TLS is enabled.
*
* - With "encrypt" and higher, TLS encryption must be applied.
*
* - Strictly above "encrypt", the peer certificate must match.
*
* - At "dane" and higher, the peer certificate must also be trusted. With
* "dane" the trust may be self-asserted, so we only log trust verification
* errors when TA associations are involved.
*/
#define TLS_LEV_INVALID -2 /* sentinel */
#define TLS_LEV_NOTFOUND -1 /* XXX not in policy table */
#define TLS_LEV_NONE 0 /* plain-text only */
#define TLS_LEV_MAY 1 /* wildcard */
#define TLS_LEV_ENCRYPT 2 /* encrypted connection */
#define TLS_LEV_FPRINT 3 /* "peer" CA-less verification */
#define TLS_LEV_HALF_DANE 4 /* DANE TLSA MX host, insecure MX RR */
#define TLS_LEV_DANE 5 /* Opportunistic TLSA policy */
#define TLS_LEV_DANE_ONLY 6 /* Required TLSA policy */
#define TLS_LEV_VERIFY 7 /* certificate verified */
#define TLS_LEV_SECURE 8 /* "secure" verification */
#define TLS_REQUIRED(l) ((l) > TLS_LEV_MAY)
#define TLS_MUST_MATCH(l) ((l) > TLS_LEV_ENCRYPT)
#define TLS_MUST_TRUST(l) ((l) >= TLS_LEV_HALF_DANE)
#define TLS_MUST_PKIX(l) ((l) >= TLS_LEV_VERIFY)
#define TLS_OPPORTUNISTIC(l) ((l) == TLS_LEV_MAY || (l) == TLS_LEV_DANE)
#define TLS_DANE_BASED(l) \
((l) >= TLS_LEV_HALF_DANE && (l) <= TLS_LEV_DANE_ONLY)
#define TLS_NEVER_SECURED(l) ((l) == TLS_LEV_HALF_DANE)
extern int tls_level_lookup(const char *);
extern const char *str_tls_level(int);
#ifdef USE_TLS
/*
* OpenSSL library.
*/
#include <openssl/lhash.h>
#include <openssl/bn.h>
#include <openssl/err.h>
#include <openssl/pem.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include <openssl/rand.h>
#include <openssl/crypto.h> /* Legacy SSLEAY_VERSION_NUMBER */
#include <openssl/opensslv.h> /* OPENSSL_VERSION_NUMBER */
#include <openssl/ssl.h>
/* Appease indent(1) */
#define x509_stack_t STACK_OF(X509)
#define general_name_stack_t STACK_OF(GENERAL_NAME)
#define ssl_cipher_stack_t STACK_OF(SSL_CIPHER)
#define ssl_comp_stack_t STACK_OF(SSL_COMP)
#if (OPENSSL_VERSION_NUMBER < 0x00090700f)
#error "need OpenSSL version 0.9.7 or later"
#endif
/* Backwards compatibility with OpenSSL < 1.1.0 */
#if OPENSSL_VERSION_NUMBER < 0x10100000L
#define OpenSSL_version_num SSLeay
#define OpenSSL_version SSLeay_version
#define OPENSSL_VERSION SSLEAY_VERSION
#define X509_up_ref(x) \
CRYPTO_add(&((x)->references), 1, CRYPTO_LOCK_X509)
#define EVP_PKEY_up_ref(k) \
CRYPTO_add(&((k)->references), 1, CRYPTO_LOCK_EVP_PKEY)
#define X509_STORE_CTX_get0_cert(ctx) ((ctx)->cert)
#define X509_STORE_CTX_get0_untrusted(ctx) ((ctx)->untrusted)
#define X509_STORE_CTX_set0_untrusted X509_STORE_CTX_set_chain
#define X509_STORE_CTX_set0_trusted_stack X509_STORE_CTX_trusted_stack
#define ASN1_STRING_get0_data ASN1_STRING_data
#define X509_getm_notBefore X509_get_notBefore
#define X509_getm_notAfter X509_get_notAfter
#define TLS_method SSLv23_method
#define TLS_client_method SSLv23_client_method
#define TLS_server_method SSLv23_server_method
#endif
/* SSL_CIPHER_get_name() got constified in 0.9.7g */
#if OPENSSL_VERSION_NUMBER >= 0x0090707fL /* constification */
#define SSL_CIPHER_const const
#else
#define SSL_CIPHER_const
#endif
/* d2i_X509() got constified in 0.9.8a */
#if OPENSSL_VERSION_NUMBER >= 0x0090801fL
#define D2I_const const
#else
#define D2I_const
#endif
/*
* Utility library.
*/
#include <vstream.h>
#include <name_mask.h>
#include <name_code.h>
/*
* TLS library.
*/
#include <dns.h>
/*
* Names of valid tlsmgr(8) session caches.
*/
#define TLS_MGR_SCACHE_SMTPD "smtpd"
#define TLS_MGR_SCACHE_SMTP "smtp"
#define TLS_MGR_SCACHE_LMTP "lmtp"
/*
* RFC 6698, 7671, 7672 DANE
*/
#define TLS_DANE_TA 0 /* Match trust-anchor digests */
#define TLS_DANE_EE 1 /* Match end-entity digests */
#define TLS_DANE_CERT 0 /* Match the certificate digest */
#define TLS_DANE_PKEY 1 /* Match the public key digest */
#define TLS_DANE_FLAG_NORRS (1<<0) /* Nothing found in DNS */
#define TLS_DANE_FLAG_EMPTY (1<<1) /* Nothing usable found in DNS */
#define TLS_DANE_FLAG_ERROR (1<<2) /* TLSA record lookup error */
#define tls_dane_unusable(dane) ((dane)->flags & TLS_DANE_FLAG_EMPTY)
#define tls_dane_notfound(dane) ((dane)->flags & TLS_DANE_FLAG_NORRS)
#define TLS_DANE_CACHE_TTL_MIN 1 /* A lot can happen in ~2 seconds */
#define TLS_DANE_CACHE_TTL_MAX 100 /* Comparable to max_idle */
/*
* Certificate and public key digests (typically from TLSA RRs), grouped by
* algorithm.
*/
typedef struct TLS_TLSA {
char *mdalg; /* Algorithm for this digest list */
ARGV *certs; /* Complete certificate digests */
ARGV *pkeys; /* SubjectPublicKeyInfo digests */
struct TLS_TLSA *next; /* Chain to next algorithm */
} TLS_TLSA;
/*
* Linked list of full X509 trust-anchor certs.
*/
typedef struct TLS_CERTS {
X509 *cert;
struct TLS_CERTS *next;
} TLS_CERTS;
/*
* Linked list of full EVP_PKEY trust-anchor public keys.
*/
typedef struct TLS_PKEYS {
EVP_PKEY *pkey;
struct TLS_PKEYS *next;
} TLS_PKEYS;
typedef struct TLS_DANE {
TLS_TLSA *ta; /* Trust-anchor cert/pubkey digests */
TLS_TLSA *ee; /* End-entity cert/pubkey digests */
TLS_CERTS *certs; /* Full trust-anchor certificates */
TLS_PKEYS *pkeys; /* Full trust-anchor public keys */
char *base_domain; /* Base domain of TLSA RRset */
int flags; /* Lookup status */
time_t expires; /* Expiration time of this record */
int refs; /* Reference count */
} TLS_DANE;
#define TLS_DANE_HASTA(d) ((d) ? (d)->ta : 0)
#define TLS_DANE_HASEE(d) ((d) ? (d)->ee : 0)
/*
* tls_dane.c
*/
extern int tls_dane_avail(void);
extern void tls_dane_flush(void);
extern void tls_dane_verbose(int);
extern TLS_DANE *tls_dane_alloc(void);
extern void tls_dane_add_ee_digests(TLS_DANE *, const char *, const char *,
const char *);
extern void tls_dane_free(TLS_DANE *);
extern TLS_DANE *tls_dane_resolve(unsigned, const char *, DNS_RR *, int);
extern int tls_dane_load_trustfile(TLS_DANE *, const char *);
/*
* TLS session context, also used by the VSTREAM call-back routines for SMTP
* input/output, and by OpenSSL call-back routines for key verification.
*
* Only some members are (read-only) accessible by the public.
*/
#define CCERT_BUFSIZ 256
typedef struct {
/* Public, read-only. */
char *peer_CN; /* Peer Common Name */
char *issuer_CN; /* Issuer Common Name */
char *peer_cert_fprint; /* ASCII certificate fingerprint */
char *peer_pkey_fprint; /* ASCII public key fingerprint */
int peer_status; /* Certificate and match status */
const char *protocol;
const char *cipher_name;
int cipher_usebits;
int cipher_algbits;
/* Private. */
SSL *con;
char *cache_type; /* tlsmgr(8) cache type if enabled */
int ticketed; /* Session ticket issued */
char *serverid; /* unique server identifier */
char *namaddr; /* nam[addr] for logging */
int log_mask; /* What to log */
int session_reused; /* this session was reused */
int am_server; /* Are we an SSL server or client? */
const char *mdalg; /* default message digest algorithm */
/* Built-in vs external SSL_accept/read/write/shutdown support. */
VSTREAM *stream; /* Blocking-mode SMTP session */
/* DANE TLSA trust input and verification state */
const TLS_DANE *dane; /* DANE TLSA digests */
int errordepth; /* Chain depth of error cert */
int tadepth; /* Chain depth of trust anchor */
int errorcode; /* First error at error depth */
X509 *errorcert; /* Error certificate closest to leaf */
x509_stack_t *untrusted; /* Certificate chain fodder */
x509_stack_t *trusted; /* Internal root CA list */
} TLS_SESS_STATE;
/*
* Peer status bits. TLS_CERT_FLAG_MATCHED implies TLS_CERT_FLAG_TRUSTED
* only in the case of a hostname match.
*/
#define TLS_CERT_FLAG_PRESENT (1<<0)
#define TLS_CERT_FLAG_ALTNAME (1<<1)
#define TLS_CERT_FLAG_TRUSTED (1<<2)
#define TLS_CERT_FLAG_MATCHED (1<<3)
#define TLS_CERT_FLAG_SECURED (1<<4)
#define TLS_CERT_IS_PRESENT(c) ((c) && ((c)->peer_status&TLS_CERT_FLAG_PRESENT))
#define TLS_CERT_IS_ALTNAME(c) ((c) && ((c)->peer_status&TLS_CERT_FLAG_ALTNAME))
#define TLS_CERT_IS_TRUSTED(c) ((c) && ((c)->peer_status&TLS_CERT_FLAG_TRUSTED))
#define TLS_CERT_IS_MATCHED(c) ((c) && ((c)->peer_status&TLS_CERT_FLAG_MATCHED))
#define TLS_CERT_IS_SECURED(c) ((c) && ((c)->peer_status&TLS_CERT_FLAG_SECURED))
/*
* Opaque client context handle.
*/
typedef struct TLS_APPL_STATE TLS_APPL_STATE;
#ifdef TLS_INTERNAL
/*
* Log mask details are internal to the library.
*/
extern int tls_log_mask(const char *, const char *);
/*
* What to log.
*/
#define TLS_LOG_NONE (1<<0)
#define TLS_LOG_SUMMARY (1<<1)
#define TLS_LOG_UNTRUSTED (1<<2)
#define TLS_LOG_PEERCERT (1<<3)
#define TLS_LOG_CERTMATCH (1<<4)
#define TLS_LOG_VERBOSE (1<<5)
#define TLS_LOG_CACHE (1<<6)
#define TLS_LOG_DEBUG (1<<7)
#define TLS_LOG_TLSPKTS (1<<8)
#define TLS_LOG_ALLPKTS (1<<9)
/*
* Client and Server application contexts
*/
struct TLS_APPL_STATE {
SSL_CTX *ssl_ctx;
int log_mask;
char *cache_type;
char *cipher_exclusions; /* Last cipher selection state */
char *cipher_list; /* Last cipher selection state */
int cipher_grade; /* Last cipher selection state */
VSTRING *why;
};
/*
* tls_misc.c Application-context update and disposal.
*/
extern void tls_update_app_logmask(TLS_APPL_STATE *, int);
extern void tls_free_app_context(TLS_APPL_STATE *);
/*
* tls_misc.c
*/
extern void tls_param_init(void);
/*
* Protocol selection.
*/
#define TLS_PROTOCOL_INVALID (~0) /* All protocol bits masked */
#ifdef SSL_TXT_SSLV2
#define TLS_PROTOCOL_SSLv2 (1<<0) /* SSLv2 */
#else
#define SSL_TXT_SSLV2 "SSLv2"
#define TLS_PROTOCOL_SSLv2 0 /* Unknown */
#undef SSL_OP_NO_SSLv2
#define SSL_OP_NO_SSLv2 0L /* Noop */
#endif
#ifdef SSL_TXT_SSLV3
#define TLS_PROTOCOL_SSLv3 (1<<1) /* SSLv3 */
#else
#define SSL_TXT_SSLV3 "SSLv3"
#define TLS_PROTOCOL_SSLv3 0 /* Unknown */
#undef SSL_OP_NO_SSLv3
#define SSL_OP_NO_SSLv3 0L /* Noop */
#endif
#ifdef SSL_TXT_TLSV1
#define TLS_PROTOCOL_TLSv1 (1<<2) /* TLSv1 */
#else
#define SSL_TXT_TLSV1 "TLSv1"
#define TLS_PROTOCOL_TLSv1 0 /* Unknown */
#undef SSL_OP_NO_TLSv1
#define SSL_OP_NO_TLSv1 0L /* Noop */
#endif
#ifdef SSL_TXT_TLSV1_1
#define TLS_PROTOCOL_TLSv1_1 (1<<3) /* TLSv1_1 */
#else
#define SSL_TXT_TLSV1_1 "TLSv1.1"
#define TLS_PROTOCOL_TLSv1_1 0 /* Unknown */
#undef SSL_OP_NO_TLSv1_1
#define SSL_OP_NO_TLSv1_1 0L /* Noop */
#endif
#ifdef SSL_TXT_TLSV1_2
#define TLS_PROTOCOL_TLSv1_2 (1<<4) /* TLSv1_2 */
#else
#define SSL_TXT_TLSV1_2 "TLSv1.2"
#define TLS_PROTOCOL_TLSv1_2 0 /* Unknown */
#undef SSL_OP_NO_TLSv1_2
#define SSL_OP_NO_TLSv1_2 0L /* Noop */
#endif
#ifdef SSL_TXT_TLSV1_3
#define TLS_PROTOCOL_TLSv1_3 (1<<5) /* TLSv1_3 */
#else
#define SSL_TXT_TLSV1_3 "TLSv1.3"
#define TLS_PROTOCOL_TLSv1_3 0 /* Unknown */
#undef SSL_OP_NO_TLSv1_3
#define SSL_OP_NO_TLSv1_3 0L /* Noop */
#endif
#define TLS_KNOWN_PROTOCOLS \
( TLS_PROTOCOL_SSLv2 | TLS_PROTOCOL_SSLv3 | TLS_PROTOCOL_TLSv1 \
| TLS_PROTOCOL_TLSv1_1 | TLS_PROTOCOL_TLSv1_2 )
#define TLS_SSL_OP_PROTOMASK(m) \
((((m) & TLS_PROTOCOL_SSLv2) ? SSL_OP_NO_SSLv2 : 0L) \
| (((m) & TLS_PROTOCOL_SSLv3) ? SSL_OP_NO_SSLv3 : 0L) \
| (((m) & TLS_PROTOCOL_TLSv1) ? SSL_OP_NO_TLSv1 : 0L) \
| (((m) & TLS_PROTOCOL_TLSv1_1) ? SSL_OP_NO_TLSv1_1 : 0L) \
| (((m) & TLS_PROTOCOL_TLSv1_2) ? SSL_OP_NO_TLSv1_2 : 0L) \
| (((m) & TLS_PROTOCOL_TLSv1_3) ? SSL_OP_NO_TLSv1_3 : 0L))
/*
* SSL options that are managed via dedicated Postfix features, rather than
* just exposed via hex codes or named elements of tls_ssl_options.
*/
#define TLS_SSL_OP_MANAGED_BITS \
(SSL_OP_CIPHER_SERVER_PREFERENCE | TLS_SSL_OP_PROTOMASK(~0))
extern int tls_protocol_mask(const char *);
/*
* Cipher grade selection.
*/
#define TLS_CIPHER_NONE 0
#define TLS_CIPHER_NULL 1
#define TLS_CIPHER_EXPORT 2
#define TLS_CIPHER_LOW 3
#define TLS_CIPHER_MEDIUM 4
#define TLS_CIPHER_HIGH 5
extern const NAME_CODE tls_cipher_grade_table[];
#define tls_cipher_grade(str) \
name_code(tls_cipher_grade_table, NAME_CODE_FLAG_NONE, (str))
#define str_tls_cipher_grade(gr) \
str_name_code(tls_cipher_grade_table, (gr))
/*
* Cipher lists with exclusions.
*/
extern const char *tls_set_ciphers(TLS_APPL_STATE *, const char *,
const char *, const char *);
#endif
/*
* tls_client.c
*/
typedef struct {
const char *log_param;
const char *log_level;
int verifydepth;
const char *cache_type;
const char *cert_file;
const char *key_file;
const char *dcert_file;
const char *dkey_file;
const char *eccert_file;
const char *eckey_file;
const char *CAfile;
const char *CApath;
const char *mdalg; /* default message digest algorithm */
} TLS_CLIENT_INIT_PROPS;
typedef struct {
TLS_APPL_STATE *ctx;
VSTREAM *stream;
int timeout;
int tls_level; /* Security level */
const char *nexthop; /* destination domain */
const char *host; /* MX hostname */
const char *namaddr; /* nam[addr] for logging */
const char *serverid; /* Session cache key */
const char *helo; /* Server name from EHLO response */
const char *protocols; /* Enabled protocols */
const char *cipher_grade; /* Minimum cipher grade */
const char *cipher_exclusions; /* Ciphers to exclude */
const ARGV *matchargv; /* Cert match patterns */
const char *mdalg; /* default message digest algorithm */
const TLS_DANE *dane; /* DANE TLSA verification */
} TLS_CLIENT_START_PROPS;
extern TLS_APPL_STATE *tls_client_init(const TLS_CLIENT_INIT_PROPS *);
extern TLS_SESS_STATE *tls_client_start(const TLS_CLIENT_START_PROPS *);
#define tls_client_stop(ctx, stream, timeout, failure, TLScontext) \
tls_session_stop(ctx, (stream), (timeout), (failure), (TLScontext))
#define TLS_CLIENT_INIT(props, a1, a2, a3, a4, a5, a6, a7, a8, a9, \
a10, a11, a12, a13) \
tls_client_init((((props)->a1), ((props)->a2), ((props)->a3), \
((props)->a4), ((props)->a5), ((props)->a6), ((props)->a7), \
((props)->a8), ((props)->a9), ((props)->a10), ((props)->a11), \
((props)->a12), ((props)->a13), (props)))
#define TLS_CLIENT_START(props, a1, a2, a3, a4, a5, a6, a7, a8, a9, \
a10, a11, a12, a13, a14, a15) \
tls_client_start((((props)->a1), ((props)->a2), ((props)->a3), \
((props)->a4), ((props)->a5), ((props)->a6), ((props)->a7), \
((props)->a8), ((props)->a9), ((props)->a10), ((props)->a11), \
((props)->a12), ((props)->a13), ((props)->a14), ((props)->a15), (props)))
/*
* tls_server.c
*/
typedef struct {
const char *log_param;
const char *log_level;
int verifydepth;
const char *cache_type;
int set_sessid;
const char *cert_file;
const char *key_file;
const char *dcert_file;
const char *dkey_file;
const char *eccert_file;
const char *eckey_file;
const char *CAfile;
const char *CApath;
const char *protocols;
const char *eecdh_grade;
const char *dh1024_param_file;
const char *dh512_param_file;
int ask_ccert;
const char *mdalg; /* default message digest algorithm */
} TLS_SERVER_INIT_PROPS;
typedef struct {
TLS_APPL_STATE *ctx; /* TLS application context */
VSTREAM *stream; /* Client stream */
int fd; /* Event-driven file descriptor */
int timeout; /* TLS handshake timeout */
int requirecert; /* Insist on client cert? */
const char *serverid; /* Server instance (salt cache key) */
const char *namaddr; /* Client nam[addr] for logging */
const char *cipher_grade;
const char *cipher_exclusions;
const char *mdalg; /* default message digest algorithm */
} TLS_SERVER_START_PROPS;
extern TLS_APPL_STATE *tls_server_init(const TLS_SERVER_INIT_PROPS *);
extern TLS_SESS_STATE *tls_server_start(const TLS_SERVER_START_PROPS *props);
extern TLS_SESS_STATE *tls_server_post_accept(TLS_SESS_STATE *);
#define tls_server_stop(ctx, stream, timeout, failure, TLScontext) \
tls_session_stop(ctx, (stream), (timeout), (failure), (TLScontext))
#define TLS_SERVER_INIT(props, a1, a2, a3, a4, a5, a6, a7, a8, a9, \
a10, a11, a12, a13, a14, a15, a16, a17, a18, a19) \
tls_server_init((((props)->a1), ((props)->a2), ((props)->a3), \
((props)->a4), ((props)->a5), ((props)->a6), ((props)->a7), \
((props)->a8), ((props)->a9), ((props)->a10), ((props)->a11), \
((props)->a12), ((props)->a13), ((props)->a14), ((props)->a15), \
((props)->a16), ((props)->a17), ((props)->a18), ((props)->a19), (props)))
#define TLS_SERVER_START(props, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) \
tls_server_start((((props)->a1), ((props)->a2), ((props)->a3), \
((props)->a4), ((props)->a5), ((props)->a6), ((props)->a7), \
((props)->a8), ((props)->a9), ((props)->a10), (props)))
/*
* tls_session.c
*/
extern void tls_session_stop(TLS_APPL_STATE *, VSTREAM *, int, int, TLS_SESS_STATE *);
/*
* tls_misc.c
*/
extern const char *tls_compile_version(void);
extern const char *tls_run_version(void);
extern const char **tls_pkey_algorithms(void);
#ifdef TLS_INTERNAL
#include <vstring.h>
extern VSTRING *tls_session_passivate(SSL_SESSION *);
extern SSL_SESSION *tls_session_activate(const char *, int);
/*
* tls_stream.c.
*/
extern void tls_stream_start(VSTREAM *, TLS_SESS_STATE *);
extern void tls_stream_stop(VSTREAM *);
/*
* tls_bio_ops.c: a generic multi-personality driver that retries SSL
* operations until they are satisfied or until a hard error happens.
* Because of its ugly multi-personality user interface we invoke it via
* not-so-ugly single-personality wrappers.
*/
extern int tls_bio(int, int, TLS_SESS_STATE *,
int (*) (SSL *), /* handshake */
int (*) (SSL *, void *, int), /* read */
int (*) (SSL *, const void *, int), /* write */
void *, int);
#define tls_bio_connect(fd, timeout, context) \
tls_bio((fd), (timeout), (context), SSL_connect, \
NULL, NULL, NULL, 0)
#define tls_bio_accept(fd, timeout, context) \
tls_bio((fd), (timeout), (context), SSL_accept, \
NULL, NULL, NULL, 0)
#define tls_bio_shutdown(fd, timeout, context) \
tls_bio((fd), (timeout), (context), SSL_shutdown, \
NULL, NULL, NULL, 0)
#define tls_bio_read(fd, buf, len, timeout, context) \
tls_bio((fd), (timeout), (context), NULL, \
SSL_read, NULL, (buf), (len))
#define tls_bio_write(fd, buf, len, timeout, context) \
tls_bio((fd), (timeout), (context), NULL, \
NULL, SSL_write, (buf), (len))
/*
* tls_dh.c
*/
extern void tls_set_dh_from_file(const char *, int);
extern DH *tls_tmp_dh_cb(SSL *, int, int);
extern void tls_set_eecdh_curve(SSL_CTX *, const char *);
extern void tls_auto_eecdh_curves(SSL_CTX *);
/*
* tls_rsa.c
*/
extern RSA *tls_tmp_rsa_cb(SSL *, int, int);
/*
* tls_verify.c
*/
extern char *tls_peer_CN(X509 *, const TLS_SESS_STATE *);
extern char *tls_issuer_CN(X509 *, const TLS_SESS_STATE *);
extern const char *tls_dns_name(const GENERAL_NAME *, const TLS_SESS_STATE *);
extern int tls_verify_certificate_callback(int, X509_STORE_CTX *);
extern void tls_log_verify_error(TLS_SESS_STATE *);
/*
* tls_dane.c
*/
extern int tls_dane_match(TLS_SESS_STATE *, int, X509 *, int);
extern void tls_dane_set_callback(SSL_CTX *, TLS_SESS_STATE *);
/*
* tls_fprint.c
*/
extern char *tls_digest_encode(const unsigned char *, int);
extern char *tls_data_fprint(const char *, int, const char *);
extern char *tls_cert_fprint(X509 *, const char *);
extern char *tls_pkey_fprint(X509 *, const char *);
extern char *tls_serverid_digest(const TLS_CLIENT_START_PROPS *, long,
const char *);
/*
* tls_certkey.c
*/
extern int tls_set_ca_certificate_info(SSL_CTX *, const char *, const char *);
extern int tls_set_my_certificate_key_info(SSL_CTX *,
/* RSA */ const char *, const char *,
/* DSA */ const char *, const char *,
/* ECDSA */ const char *, const char *);
/*
* tls_misc.c
*/
extern int TLScontext_index;
extern TLS_APPL_STATE *tls_alloc_app_context(SSL_CTX *, int);
extern TLS_SESS_STATE *tls_alloc_sess_context(int, const char *);
extern void tls_free_context(TLS_SESS_STATE *);
extern void tls_check_version(void);
extern long tls_bug_bits(void);
extern void tls_print_errors(void);
extern void tls_info_callback(const SSL *, int, int);
extern long tls_bio_dump_cb(BIO *, int, const char *, int, long, long);
extern int tls_validate_digest(const char *);
/*
* tls_seed.c
*/
extern void tls_int_seed(void);
extern int tls_ext_seed(int);
#endif /* TLS_INTERNAL */
/* LICENSE
/* .ad
/* .fi
/* The Secure Mailer license must be distributed with this software.
/* AUTHOR(S)
/* Wietse Venema
/* IBM T.J. Watson Research
/* P.O. Box 704
/* Yorktown Heights, NY 10598, USA
/*
/* Victor Duchovni
/* Morgan Stanley
/*--*/
#endif /* USE_TLS */
#endif /* _TLS_H_INCLUDED_ */