* The feature that stopped alpine from saving passwords in the password

     file prevented users from actually saving their passwords in Windows
     and MAC OS. Fix the code so that passwords will be saved. Also,
     update the documentation of this feature.

   * Fix a buffer overflow bug in the XOAUTH2 code (off by one error).

   * Update PC-Alpine to work with Libressl version 3.0.2 instead of
     version 2.5.5 (update build.bat and lib files from the LibreSSL
     build).

   * Erase SSLXXXXXX file.

   * ssl_nt.c actually directs the code to ssl_libressl.c or ssl_win.c.
     The file ssl_libressl.c is the file ssl_unix.c from the unix osdep
     directory. The file ssl_win.c is the native SSL windows code. The
     Unix side provides S/MIME support for Alpine and the latest
     encryption protocols support for Alpine when connecting to a secure
     server, while the windows side provide TLSv1_3 support for Alpine,
     but not S/MIME support.

     In order to provide unix code for TLSv1_3 (once LibreSSL supports it)
     edit the file os_nt.c and remove the comments on the #ifdef section.
     This would provide both TLSv1_3 and S/MIME support with unix code. On
     the other hand, when we provide TLSv1_3 with the Windows code we need
     to undefine DF_ENCRYPTION_RANGE, and this is done in the file
     include/config.wnt.h. The way this is done as of this moment is by
     commenting an #else directive that preceedes this #undefine.

   * Update makefile.nt and friends in the windows side to account for the
     addition of XOAUTH2, and the use of only ssl_nt.c when dealing with
     Alpine.

   * Define SMIME_SSLCERTS as c:\libressl\ssl\certs, so that these
     certificates be considered while checking a digital S/MIME signature.

   * Improvements to the SMARTTIME24 token to account for changes in year.

1 files changed, 837 insertions, 0 deletions

diff --git a/libressl/libressl/include/openssl/ts.h b/libressl/libressl/include/openssl/ts.h
new file mode 100644
index 00000000..fa8eb949
--- /dev/null
+++ b/libressl/libressl/include/openssl/ts.h
@@ -0,0 +1,837 @@
+/* $OpenBSD: ts.h,v 1.10 2018/05/13 15:35:46 tb Exp $ */
+/* Written by Zoltan Glozik (zglozik@opentsa.org) for the OpenSSL
+ * project 2002, 2003, 2004.
+ */
+/* ====================================================================
+ * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+#ifndef HEADER_TS_H
+#define HEADER_TS_H
+
+#include <openssl/opensslconf.h>
+
+#ifndef OPENSSL_NO_BUFFER
+#include <openssl/buffer.h>
+#endif
+#ifndef OPENSSL_NO_EVP
+#include <openssl/evp.h>
+#endif
+#ifndef OPENSSL_NO_BIO
+#include <openssl/bio.h>
+#endif
+#include <openssl/stack.h>
+#include <openssl/asn1.h>
+#include <openssl/safestack.h>
+
+#ifndef OPENSSL_NO_RSA
+#include <openssl/rsa.h>
+#endif
+
+#ifndef OPENSSL_NO_DSA
+#include <openssl/dsa.h>
+#endif
+
+#ifndef OPENSSL_NO_DH
+#include <openssl/dh.h>
+#endif
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+#include <openssl/x509.h>
+#include <openssl/x509v3.h>
+
+/*
+MessageImprint ::= SEQUENCE  {
+     hashAlgorithm                AlgorithmIdentifier,
+     hashedMessage                OCTET STRING  }
+*/
+
+typedef struct TS_msg_imprint_st {
+	X509_ALGOR *hash_algo;
+	ASN1_OCTET_STRING *hashed_msg;
+} TS_MSG_IMPRINT;
+
+/*
+TimeStampReq ::= SEQUENCE  {
+   version                  INTEGER  { v1(1) },
+   messageImprint           MessageImprint,
+     --a hash algorithm OID and the hash value of the data to be
+     --time-stamped
+   reqPolicy                TSAPolicyId                OPTIONAL,
+   nonce                    INTEGER                    OPTIONAL,
+   certReq                  BOOLEAN                    DEFAULT FALSE,
+   extensions               [0] IMPLICIT Extensions    OPTIONAL  }
+*/
+
+typedef struct TS_req_st {
+	ASN1_INTEGER *version;
+	TS_MSG_IMPRINT *msg_imprint;
+	ASN1_OBJECT *policy_id;		/* OPTIONAL */
+	ASN1_INTEGER *nonce;		/* OPTIONAL */
+	ASN1_BOOLEAN cert_req;		/* DEFAULT FALSE */
+	STACK_OF(X509_EXTENSION) *extensions;	/* [0] OPTIONAL */
+} TS_REQ;
+
+/*
+Accuracy ::= SEQUENCE {
+                seconds        INTEGER           OPTIONAL,
+                millis     [0] INTEGER  (1..999) OPTIONAL,
+                micros     [1] INTEGER  (1..999) OPTIONAL  }
+*/
+
+typedef struct TS_accuracy_st {
+	ASN1_INTEGER *seconds;
+	ASN1_INTEGER *millis;
+	ASN1_INTEGER *micros;
+} TS_ACCURACY;
+
+/*
+TSTInfo ::= SEQUENCE  {
+    version                      INTEGER  { v1(1) },
+    policy                       TSAPolicyId,
+    messageImprint               MessageImprint,
+      -- MUST have the same value as the similar field in
+      -- TimeStampReq
+    serialNumber                 INTEGER,
+     -- Time-Stamping users MUST be ready to accommodate integers
+     -- up to 160 bits.
+    genTime                      GeneralizedTime,
+    accuracy                     Accuracy                 OPTIONAL,
+    ordering                     BOOLEAN             DEFAULT FALSE,
+    nonce                        INTEGER                  OPTIONAL,
+      -- MUST be present if the similar field was present
+      -- in TimeStampReq.  In that case it MUST have the same value.
+    tsa                          [0] GeneralName          OPTIONAL,
+    extensions                   [1] IMPLICIT Extensions  OPTIONAL   }
+*/
+
+typedef struct TS_tst_info_st {
+	ASN1_INTEGER *version;
+	ASN1_OBJECT *policy_id;
+	TS_MSG_IMPRINT *msg_imprint;
+	ASN1_INTEGER *serial;
+	ASN1_GENERALIZEDTIME *time;
+	TS_ACCURACY *accuracy;
+	ASN1_BOOLEAN ordering;
+	ASN1_INTEGER *nonce;
+	GENERAL_NAME *tsa;
+	STACK_OF(X509_EXTENSION) *extensions;
+} TS_TST_INFO;
+
+/*
+PKIStatusInfo ::= SEQUENCE {
+    status        PKIStatus,
+    statusString  PKIFreeText     OPTIONAL,
+    failInfo      PKIFailureInfo  OPTIONAL  }
+
+From RFC 1510 - section 3.1.1:
+PKIFreeText ::= SEQUENCE SIZE (1..MAX) OF UTF8String
+	-- text encoded as UTF-8 String (note:  each UTF8String SHOULD
+	-- include an RFC 1766 language tag to indicate the language
+	-- of the contained text)
+*/
+
+/* Possible values for status. See ts_resp_print.c && ts_resp_verify.c. */
+
+#define	TS_STATUS_GRANTED			0
+#define	TS_STATUS_GRANTED_WITH_MODS		1
+#define	TS_STATUS_REJECTION			2
+#define	TS_STATUS_WAITING			3
+#define	TS_STATUS_REVOCATION_WARNING		4
+#define	TS_STATUS_REVOCATION_NOTIFICATION	5
+
+/* Possible values for failure_info. See ts_resp_print.c && ts_resp_verify.c */
+
+#define	TS_INFO_BAD_ALG			0
+#define	TS_INFO_BAD_REQUEST		2
+#define	TS_INFO_BAD_DATA_FORMAT		5
+#define	TS_INFO_TIME_NOT_AVAILABLE	14
+#define	TS_INFO_UNACCEPTED_POLICY	15
+#define	TS_INFO_UNACCEPTED_EXTENSION	16
+#define	TS_INFO_ADD_INFO_NOT_AVAILABLE	17
+#define	TS_INFO_SYSTEM_FAILURE		25
+
+typedef struct TS_status_info_st {
+	ASN1_INTEGER *status;
+	STACK_OF(ASN1_UTF8STRING) *text;
+	ASN1_BIT_STRING *failure_info;
+} TS_STATUS_INFO;
+
+DECLARE_STACK_OF(ASN1_UTF8STRING)
+
+/*
+TimeStampResp ::= SEQUENCE  {
+     status                  PKIStatusInfo,
+     timeStampToken          TimeStampToken     OPTIONAL }
+*/
+
+typedef struct TS_resp_st {
+	TS_STATUS_INFO *status_info;
+	PKCS7 *token;
+	TS_TST_INFO *tst_info;
+} TS_RESP;
+
+/* The structure below would belong to the ESS component. */
+
+/*
+IssuerSerial ::= SEQUENCE {
+	issuer                   GeneralNames,
+	serialNumber             CertificateSerialNumber
+	}
+*/
+
+typedef struct ESS_issuer_serial {
+	STACK_OF(GENERAL_NAME)	*issuer;
+	ASN1_INTEGER		*serial;
+} ESS_ISSUER_SERIAL;
+
+/*
+ESSCertID ::=  SEQUENCE {
+        certHash                 Hash,
+        issuerSerial             IssuerSerial OPTIONAL
+}
+*/
+
+typedef struct ESS_cert_id {
+	ASN1_OCTET_STRING *hash;	/* Always SHA-1 digest. */
+	ESS_ISSUER_SERIAL *issuer_serial;
+} ESS_CERT_ID;
+
+DECLARE_STACK_OF(ESS_CERT_ID)
+
+/*
+SigningCertificate ::=  SEQUENCE {
+       certs        SEQUENCE OF ESSCertID,
+       policies     SEQUENCE OF PolicyInformation OPTIONAL
+}
+*/
+
+typedef struct ESS_signing_cert {
+	STACK_OF(ESS_CERT_ID) *cert_ids;
+	STACK_OF(POLICYINFO) *policy_info;
+} ESS_SIGNING_CERT;
+
+
+TS_REQ	*TS_REQ_new(void);
+void	TS_REQ_free(TS_REQ *a);
+int	i2d_TS_REQ(const TS_REQ *a, unsigned char **pp);
+TS_REQ	*d2i_TS_REQ(TS_REQ **a, const unsigned char **pp, long length);
+
+TS_REQ	*TS_REQ_dup(TS_REQ *a);
+
+TS_REQ	*d2i_TS_REQ_fp(FILE *fp, TS_REQ **a);
+int	i2d_TS_REQ_fp(FILE *fp, TS_REQ *a);
+TS_REQ	*d2i_TS_REQ_bio(BIO *fp, TS_REQ **a);
+int	i2d_TS_REQ_bio(BIO *fp, TS_REQ *a);
+
+TS_MSG_IMPRINT	*TS_MSG_IMPRINT_new(void);
+void		TS_MSG_IMPRINT_free(TS_MSG_IMPRINT *a);
+int		i2d_TS_MSG_IMPRINT(const TS_MSG_IMPRINT *a, unsigned char **pp);
+TS_MSG_IMPRINT	*d2i_TS_MSG_IMPRINT(TS_MSG_IMPRINT **a,
+		    const unsigned char **pp, long length);
+
+TS_MSG_IMPRINT	*TS_MSG_IMPRINT_dup(TS_MSG_IMPRINT *a);
+
+TS_MSG_IMPRINT	*d2i_TS_MSG_IMPRINT_fp(FILE *fp, TS_MSG_IMPRINT **a);
+int		i2d_TS_MSG_IMPRINT_fp(FILE *fp, TS_MSG_IMPRINT *a);
+TS_MSG_IMPRINT	*d2i_TS_MSG_IMPRINT_bio(BIO *fp, TS_MSG_IMPRINT **a);
+int		i2d_TS_MSG_IMPRINT_bio(BIO *fp, TS_MSG_IMPRINT *a);
+
+TS_RESP	*TS_RESP_new(void);
+void	TS_RESP_free(TS_RESP *a);
+int	i2d_TS_RESP(const TS_RESP *a, unsigned char **pp);
+TS_RESP	*d2i_TS_RESP(TS_RESP **a, const unsigned char **pp, long length);
+TS_TST_INFO *PKCS7_to_TS_TST_INFO(PKCS7 *token);
+TS_RESP	*TS_RESP_dup(TS_RESP *a);
+
+TS_RESP	*d2i_TS_RESP_fp(FILE *fp, TS_RESP **a);
+int	i2d_TS_RESP_fp(FILE *fp, TS_RESP *a);
+TS_RESP	*d2i_TS_RESP_bio(BIO *fp, TS_RESP **a);
+int	i2d_TS_RESP_bio(BIO *fp, TS_RESP *a);
+
+TS_STATUS_INFO	*TS_STATUS_INFO_new(void);
+void		TS_STATUS_INFO_free(TS_STATUS_INFO *a);
+int		i2d_TS_STATUS_INFO(const TS_STATUS_INFO *a, unsigned char **pp);
+TS_STATUS_INFO	*d2i_TS_STATUS_INFO(TS_STATUS_INFO **a,
+		    const unsigned char **pp, long length);
+TS_STATUS_INFO	*TS_STATUS_INFO_dup(TS_STATUS_INFO *a);
+
+TS_TST_INFO	*TS_TST_INFO_new(void);
+void		TS_TST_INFO_free(TS_TST_INFO *a);
+int		i2d_TS_TST_INFO(const TS_TST_INFO *a, unsigned char **pp);
+TS_TST_INFO	*d2i_TS_TST_INFO(TS_TST_INFO **a, const unsigned char **pp,
+		    long length);
+TS_TST_INFO	*TS_TST_INFO_dup(TS_TST_INFO *a);
+
+TS_TST_INFO	*d2i_TS_TST_INFO_fp(FILE *fp, TS_TST_INFO **a);
+int		i2d_TS_TST_INFO_fp(FILE *fp, TS_TST_INFO *a);
+TS_TST_INFO	*d2i_TS_TST_INFO_bio(BIO *fp, TS_TST_INFO **a);
+int		i2d_TS_TST_INFO_bio(BIO *fp, TS_TST_INFO *a);
+
+TS_ACCURACY	*TS_ACCURACY_new(void);
+void		TS_ACCURACY_free(TS_ACCURACY *a);
+int		i2d_TS_ACCURACY(const TS_ACCURACY *a, unsigned char **pp);
+TS_ACCURACY	*d2i_TS_ACCURACY(TS_ACCURACY **a, const unsigned char **pp,
+		    long length);
+TS_ACCURACY	*TS_ACCURACY_dup(TS_ACCURACY *a);
+
+ESS_ISSUER_SERIAL *ESS_ISSUER_SERIAL_new(void);
+void		  ESS_ISSUER_SERIAL_free(ESS_ISSUER_SERIAL *a);
+int		  i2d_ESS_ISSUER_SERIAL(const ESS_ISSUER_SERIAL *a,
+		    unsigned char **pp);
+ESS_ISSUER_SERIAL *d2i_ESS_ISSUER_SERIAL(ESS_ISSUER_SERIAL **a,
+		    const unsigned char **pp, long length);
+ESS_ISSUER_SERIAL *ESS_ISSUER_SERIAL_dup(ESS_ISSUER_SERIAL *a);
+
+ESS_CERT_ID	*ESS_CERT_ID_new(void);
+void		ESS_CERT_ID_free(ESS_CERT_ID *a);
+int		i2d_ESS_CERT_ID(const ESS_CERT_ID *a, unsigned char **pp);
+ESS_CERT_ID	*d2i_ESS_CERT_ID(ESS_CERT_ID **a, const unsigned char **pp,
+		    long length);
+ESS_CERT_ID	*ESS_CERT_ID_dup(ESS_CERT_ID *a);
+
+ESS_SIGNING_CERT *ESS_SIGNING_CERT_new(void);
+void		 ESS_SIGNING_CERT_free(ESS_SIGNING_CERT *a);
+int		 i2d_ESS_SIGNING_CERT(const ESS_SIGNING_CERT *a,
+		    unsigned char **pp);
+ESS_SIGNING_CERT *d2i_ESS_SIGNING_CERT(ESS_SIGNING_CERT **a,
+		    const unsigned char **pp, long length);
+ESS_SIGNING_CERT *ESS_SIGNING_CERT_dup(ESS_SIGNING_CERT *a);
+
+void ERR_load_TS_strings(void);
+
+int TS_REQ_set_version(TS_REQ *a, long version);
+long TS_REQ_get_version(const TS_REQ *a);
+
+int TS_REQ_set_msg_imprint(TS_REQ *a, TS_MSG_IMPRINT *msg_imprint);
+TS_MSG_IMPRINT *TS_REQ_get_msg_imprint(TS_REQ *a);
+
+int TS_MSG_IMPRINT_set_algo(TS_MSG_IMPRINT *a, X509_ALGOR *alg);
+X509_ALGOR *TS_MSG_IMPRINT_get_algo(TS_MSG_IMPRINT *a);
+
+int TS_MSG_IMPRINT_set_msg(TS_MSG_IMPRINT *a, unsigned char *d, int len);
+ASN1_OCTET_STRING *TS_MSG_IMPRINT_get_msg(TS_MSG_IMPRINT *a);
+
+int TS_REQ_set_policy_id(TS_REQ *a, const ASN1_OBJECT *policy);
+ASN1_OBJECT *TS_REQ_get_policy_id(TS_REQ *a);
+
+int TS_REQ_set_nonce(TS_REQ *a, const ASN1_INTEGER *nonce);
+const ASN1_INTEGER *TS_REQ_get_nonce(const TS_REQ *a);
+
+int TS_REQ_set_cert_req(TS_REQ *a, int cert_req);
+int TS_REQ_get_cert_req(const TS_REQ *a);
+
+STACK_OF(X509_EXTENSION) *TS_REQ_get_exts(TS_REQ *a);
+void TS_REQ_ext_free(TS_REQ *a);
+int TS_REQ_get_ext_count(TS_REQ *a);
+int TS_REQ_get_ext_by_NID(TS_REQ *a, int nid, int lastpos);
+int TS_REQ_get_ext_by_OBJ(TS_REQ *a, const ASN1_OBJECT *obj, int lastpos);
+int TS_REQ_get_ext_by_critical(TS_REQ *a, int crit, int lastpos);
+X509_EXTENSION *TS_REQ_get_ext(TS_REQ *a, int loc);
+X509_EXTENSION *TS_REQ_delete_ext(TS_REQ *a, int loc);
+int TS_REQ_add_ext(TS_REQ *a, X509_EXTENSION *ex, int loc);
+void *TS_REQ_get_ext_d2i(TS_REQ *a, int nid, int *crit, int *idx);
+
+/* Function declarations for TS_REQ defined in ts/ts_req_print.c */
+
+int TS_REQ_print_bio(BIO *bio, TS_REQ *a);
+
+/* Function declarations for TS_RESP defined in ts/ts_resp_utils.c */
+
+int TS_RESP_set_status_info(TS_RESP *a, TS_STATUS_INFO *info);
+TS_STATUS_INFO *TS_RESP_get_status_info(TS_RESP *a);
+
+/* Caller loses ownership of PKCS7 and TS_TST_INFO objects. */
+void TS_RESP_set_tst_info(TS_RESP *a, PKCS7 *p7, TS_TST_INFO *tst_info);
+PKCS7 *TS_RESP_get_token(TS_RESP *a);
+TS_TST_INFO *TS_RESP_get_tst_info(TS_RESP *a);
+
+int TS_TST_INFO_set_version(TS_TST_INFO *a, long version);
+long TS_TST_INFO_get_version(const TS_TST_INFO *a);
+
+int TS_TST_INFO_set_policy_id(TS_TST_INFO *a, ASN1_OBJECT *policy_id);
+ASN1_OBJECT *TS_TST_INFO_get_policy_id(TS_TST_INFO *a);
+
+int TS_TST_INFO_set_msg_imprint(TS_TST_INFO *a, TS_MSG_IMPRINT *msg_imprint);
+TS_MSG_IMPRINT *TS_TST_INFO_get_msg_imprint(TS_TST_INFO *a);
+
+int TS_TST_INFO_set_serial(TS_TST_INFO *a, const ASN1_INTEGER *serial);
+const ASN1_INTEGER *TS_TST_INFO_get_serial(const TS_TST_INFO *a);
+
+int TS_TST_INFO_set_time(TS_TST_INFO *a, const ASN1_GENERALIZEDTIME *gtime);
+const ASN1_GENERALIZEDTIME *TS_TST_INFO_get_time(const TS_TST_INFO *a);
+
+int TS_TST_INFO_set_accuracy(TS_TST_INFO *a, TS_ACCURACY *accuracy);
+TS_ACCURACY *TS_TST_INFO_get_accuracy(TS_TST_INFO *a);
+
+int TS_ACCURACY_set_seconds(TS_ACCURACY *a, const ASN1_INTEGER *seconds);
+const ASN1_INTEGER *TS_ACCURACY_get_seconds(const TS_ACCURACY *a);
+
+int TS_ACCURACY_set_millis(TS_ACCURACY *a, const ASN1_INTEGER *millis);
+const ASN1_INTEGER *TS_ACCURACY_get_millis(const TS_ACCURACY *a);
+
+int TS_ACCURACY_set_micros(TS_ACCURACY *a, const ASN1_INTEGER *micros);
+const ASN1_INTEGER *TS_ACCURACY_get_micros(const TS_ACCURACY *a);
+
+int TS_TST_INFO_set_ordering(TS_TST_INFO *a, int ordering);
+int TS_TST_INFO_get_ordering(const TS_TST_INFO *a);
+
+int TS_TST_INFO_set_nonce(TS_TST_INFO *a, const ASN1_INTEGER *nonce);
+const ASN1_INTEGER *TS_TST_INFO_get_nonce(const TS_TST_INFO *a);
+
+int TS_TST_INFO_set_tsa(TS_TST_INFO *a, GENERAL_NAME *tsa);
+GENERAL_NAME *TS_TST_INFO_get_tsa(TS_TST_INFO *a);
+
+STACK_OF(X509_EXTENSION) *TS_TST_INFO_get_exts(TS_TST_INFO *a);
+void TS_TST_INFO_ext_free(TS_TST_INFO *a);
+int TS_TST_INFO_get_ext_count(TS_TST_INFO *a);
+int TS_TST_INFO_get_ext_by_NID(TS_TST_INFO *a, int nid, int lastpos);
+int TS_TST_INFO_get_ext_by_OBJ(TS_TST_INFO *a, const ASN1_OBJECT *obj,
+    int lastpos);
+int TS_TST_INFO_get_ext_by_critical(TS_TST_INFO *a, int crit, int lastpos);
+X509_EXTENSION *TS_TST_INFO_get_ext(TS_TST_INFO *a, int loc);
+X509_EXTENSION *TS_TST_INFO_delete_ext(TS_TST_INFO *a, int loc);
+int TS_TST_INFO_add_ext(TS_TST_INFO *a, X509_EXTENSION *ex, int loc);
+void *TS_TST_INFO_get_ext_d2i(TS_TST_INFO *a, int nid, int *crit, int *idx);
+
+/* Declarations related to response generation, defined in ts/ts_resp_sign.c. */
+
+/* Optional flags for response generation. */
+
+/* Don't include the TSA name in response. */
+#define	TS_TSA_NAME		0x01
+
+/* Set ordering to true in response. */
+#define	TS_ORDERING		0x02
+
+/*
+ * Include the signer certificate and the other specified certificates in
+ * the ESS signing certificate attribute beside the PKCS7 signed data.
+ * Only the signer certificates is included by default.
+ */
+#define	TS_ESS_CERT_ID_CHAIN	0x04
+
+/* Forward declaration. */
+struct TS_resp_ctx;
+
+/* This must return a unique number less than 160 bits long. */
+typedef ASN1_INTEGER *(*TS_serial_cb)(struct TS_resp_ctx *, void *);
+
+/* This must return the seconds and microseconds since Jan 1, 1970 in
+   the sec and usec variables allocated by the caller.
+   Return non-zero for success and zero for failure. */
+typedef	int (*TS_time_cb)(struct TS_resp_ctx *, void *, time_t *sec, long *usec);
+
+/* This must process the given extension.
+ * It can modify the TS_TST_INFO object of the context.
+ * Return values: !0 (processed), 0 (error, it must set the
+ * status info/failure info of the response).
+ */
+typedef	int (*TS_extension_cb)(struct TS_resp_ctx *, X509_EXTENSION *, void *);
+
+typedef struct TS_resp_ctx {
+	X509		*signer_cert;
+	EVP_PKEY	*signer_key;
+	STACK_OF(X509)	*certs;	/* Certs to include in signed data. */
+	STACK_OF(ASN1_OBJECT)	*policies;	/* Acceptable policies. */
+	ASN1_OBJECT	*default_policy; /* It may appear in policies, too. */
+	STACK_OF(EVP_MD)	*mds;	/* Acceptable message digests. */
+	ASN1_INTEGER	*seconds;	/* accuracy, 0 means not specified. */
+	ASN1_INTEGER	*millis;	/* accuracy, 0 means not specified. */
+	ASN1_INTEGER	*micros;	/* accuracy, 0 means not specified. */
+	unsigned	clock_precision_digits; /* fraction of seconds in
+						   time stamp token. */
+	unsigned	flags;		/* Optional info, see values above. */
+
+	/* Callback functions. */
+	TS_serial_cb serial_cb;
+	void *serial_cb_data;	/* User data for serial_cb. */
+
+	TS_time_cb time_cb;
+	void *time_cb_data;	/* User data for time_cb. */
+
+	TS_extension_cb extension_cb;
+	void *extension_cb_data;	/* User data for extension_cb. */
+
+	/* These members are used only while creating the response. */
+	TS_REQ		*request;
+	TS_RESP		*response;
+	TS_TST_INFO	*tst_info;
+} TS_RESP_CTX;
+
+DECLARE_STACK_OF(EVP_MD)
+
+/* Creates a response context that can be used for generating responses. */
+TS_RESP_CTX *TS_RESP_CTX_new(void);
+void TS_RESP_CTX_free(TS_RESP_CTX *ctx);
+
+/* This parameter must be set. */
+int TS_RESP_CTX_set_signer_cert(TS_RESP_CTX *ctx, X509 *signer);
+
+/* This parameter must be set. */
+int TS_RESP_CTX_set_signer_key(TS_RESP_CTX *ctx, EVP_PKEY *key);
+
+/* This parameter must be set. */
+int TS_RESP_CTX_set_def_policy(TS_RESP_CTX *ctx, const ASN1_OBJECT *def_policy);
+
+/* No additional certs are included in the response by default. */
+int TS_RESP_CTX_set_certs(TS_RESP_CTX *ctx, STACK_OF(X509) *certs);
+
+/* Adds a new acceptable policy, only the default policy
+   is accepted by default. */
+int TS_RESP_CTX_add_policy(TS_RESP_CTX *ctx, const ASN1_OBJECT *policy);
+
+/* Adds a new acceptable message digest. Note that no message digests
+   are accepted by default. The md argument is shared with the caller. */
+int TS_RESP_CTX_add_md(TS_RESP_CTX *ctx, const EVP_MD *md);
+
+/* Accuracy is not included by default. */
+int TS_RESP_CTX_set_accuracy(TS_RESP_CTX *ctx,
+    int secs, int millis, int micros);
+
+/* Clock precision digits, i.e. the number of decimal digits:
+   '0' means sec, '3' msec, '6' usec, and so on. Default is 0. */
+int TS_RESP_CTX_set_clock_precision_digits(TS_RESP_CTX *ctx,
+    unsigned clock_precision_digits);
+/* At most we accept usec precision. */
+#define TS_MAX_CLOCK_PRECISION_DIGITS	6
+
+/* No flags are set by default. */
+void TS_RESP_CTX_add_flags(TS_RESP_CTX *ctx, int flags);
+
+/* Default callback always returns a constant. */
+void TS_RESP_CTX_set_serial_cb(TS_RESP_CTX *ctx, TS_serial_cb cb, void *data);
+
+/* Default callback rejects all extensions. The extension callback is called
+ * when the TS_TST_INFO object is already set up and not signed yet. */
+/* FIXME: extension handling is not tested yet. */
+void TS_RESP_CTX_set_extension_cb(TS_RESP_CTX *ctx,
+    TS_extension_cb cb, void *data);
+
+/* The following methods can be used in the callbacks. */
+int TS_RESP_CTX_set_status_info(TS_RESP_CTX *ctx,
+    int status, const char *text);
+
+/* Sets the status info only if it is still TS_STATUS_GRANTED. */
+int TS_RESP_CTX_set_status_info_cond(TS_RESP_CTX *ctx,
+    int status, const char *text);
+
+int TS_RESP_CTX_add_failure_info(TS_RESP_CTX *ctx, int failure);
+
+/* The get methods below can be used in the extension callback. */
+TS_REQ *TS_RESP_CTX_get_request(TS_RESP_CTX *ctx);
+
+TS_TST_INFO *TS_RESP_CTX_get_tst_info(TS_RESP_CTX *ctx);
+
+/*
+ * Creates the signed TS_TST_INFO and puts it in TS_RESP.
+ * In case of errors it sets the status info properly.
+ * Returns NULL only in case of memory allocation/fatal error.
+ */
+TS_RESP *TS_RESP_create_response(TS_RESP_CTX *ctx, BIO *req_bio);
+
+/*
+ * Declarations related to response verification,
+ * they are defined in ts/ts_resp_verify.c.
+ */
+
+int TS_RESP_verify_signature(PKCS7 *token, STACK_OF(X509) *certs,
+    X509_STORE *store, X509 **signer_out);
+
+/* Context structure for the generic verify method. */
+
+/* Verify the signer's certificate and the signature of the response. */
+#define	TS_VFY_SIGNATURE	(1u << 0)
+/* Verify the version number of the response. */
+#define	TS_VFY_VERSION		(1u << 1)
+/* Verify if the policy supplied by the user matches the policy of the TSA. */
+#define	TS_VFY_POLICY		(1u << 2)
+/* Verify the message imprint provided by the user. This flag should not be
+   specified with TS_VFY_DATA. */
+#define	TS_VFY_IMPRINT		(1u << 3)
+/* Verify the message imprint computed by the verify method from the user
+   provided data and the MD algorithm of the response. This flag should not be
+   specified with TS_VFY_IMPRINT. */
+#define	TS_VFY_DATA		(1u << 4)
+/* Verify the nonce value. */
+#define	TS_VFY_NONCE		(1u << 5)
+/* Verify if the TSA name field matches the signer certificate. */
+#define	TS_VFY_SIGNER		(1u << 6)
+/* Verify if the TSA name field equals to the user provided name. */
+#define	TS_VFY_TSA_NAME		(1u << 7)
+
+/* You can use the following convenience constants. */
+#define	TS_VFY_ALL_IMPRINT	(TS_VFY_SIGNATURE	\
+				 | TS_VFY_VERSION	\
+				 | TS_VFY_POLICY	\
+				 | TS_VFY_IMPRINT	\
+				 | TS_VFY_NONCE		\
+				 | TS_VFY_SIGNER	\
+				 | TS_VFY_TSA_NAME)
+#define	TS_VFY_ALL_DATA		(TS_VFY_SIGNATURE	\
+				 | TS_VFY_VERSION	\
+				 | TS_VFY_POLICY	\
+				 | TS_VFY_DATA		\
+				 | TS_VFY_NONCE		\
+				 | TS_VFY_SIGNER	\
+				 | TS_VFY_TSA_NAME)
+
+typedef struct TS_verify_ctx {
+	/* Set this to the union of TS_VFY_... flags you want to carry out. */
+	unsigned	flags;
+
+	/* Must be set only with TS_VFY_SIGNATURE. certs is optional. */
+	X509_STORE	*store;
+	STACK_OF(X509)	*certs;
+
+	/* Must be set only with TS_VFY_POLICY. */
+	ASN1_OBJECT	*policy;
+
+	/* Must be set only with TS_VFY_IMPRINT. If md_alg is NULL,
+	   the algorithm from the response is used. */
+	X509_ALGOR	*md_alg;
+	unsigned char	*imprint;
+	unsigned	imprint_len;
+
+	/* Must be set only with TS_VFY_DATA. */
+	BIO		*data;
+
+	/* Must be set only with TS_VFY_TSA_NAME. */
+	ASN1_INTEGER	*nonce;
+
+	/* Must be set only with TS_VFY_TSA_NAME. */
+	GENERAL_NAME	*tsa_name;
+} TS_VERIFY_CTX;
+
+int TS_RESP_verify_response(TS_VERIFY_CTX *ctx, TS_RESP *response);
+int TS_RESP_verify_token(TS_VERIFY_CTX *ctx, PKCS7 *token);
+
+/*
+ * Declarations related to response verification context,
+ * they are defined in ts/ts_verify_ctx.c.
+ */
+
+/* Set all fields to zero. */
+TS_VERIFY_CTX *TS_VERIFY_CTX_new(void);
+void TS_VERIFY_CTX_init(TS_VERIFY_CTX *ctx);
+void TS_VERIFY_CTX_free(TS_VERIFY_CTX *ctx);
+void TS_VERIFY_CTX_cleanup(TS_VERIFY_CTX *ctx);
+
+/*
+ * If ctx is NULL, it allocates and returns a new object, otherwise
+ * it returns ctx. It initialises all the members as follows:
+ * flags = TS_VFY_ALL_IMPRINT & ~(TS_VFY_TSA_NAME | TS_VFY_SIGNATURE)
+ * certs = NULL
+ * store = NULL
+ * policy = policy from the request or NULL if absent (in this case
+ *	TS_VFY_POLICY is cleared from flags as well)
+ * md_alg = MD algorithm from request
+ * imprint, imprint_len = imprint from request
+ * data = NULL
+ * nonce, nonce_len = nonce from the request or NULL if absent (in this case
+ * 	TS_VFY_NONCE is cleared from flags as well)
+ * tsa_name = NULL
+ * Important: after calling this method TS_VFY_SIGNATURE should be added!
+ */
+TS_VERIFY_CTX *TS_REQ_to_TS_VERIFY_CTX(TS_REQ *req, TS_VERIFY_CTX *ctx);
+
+/* Function declarations for TS_RESP defined in ts/ts_resp_print.c */
+
+int TS_RESP_print_bio(BIO *bio, TS_RESP *a);
+int TS_STATUS_INFO_print_bio(BIO *bio, TS_STATUS_INFO *a);
+int TS_TST_INFO_print_bio(BIO *bio, TS_TST_INFO *a);
+
+/* Common utility functions defined in ts/ts_lib.c */
+
+int TS_ASN1_INTEGER_print_bio(BIO *bio, const ASN1_INTEGER *num);
+int TS_OBJ_print_bio(BIO *bio, const ASN1_OBJECT *obj);
+int TS_ext_print_bio(BIO *bio, const STACK_OF(X509_EXTENSION) *extensions);
+int TS_X509_ALGOR_print_bio(BIO *bio, const X509_ALGOR *alg);
+int TS_MSG_IMPRINT_print_bio(BIO *bio, TS_MSG_IMPRINT *msg);
+
+/* Function declarations for handling configuration options,
+   defined in ts/ts_conf.c */
+
+X509 *TS_CONF_load_cert(const char *file);
+STACK_OF(X509) *TS_CONF_load_certs(const char *file);
+EVP_PKEY *TS_CONF_load_key(const char *file, const char *pass);
+const char *TS_CONF_get_tsa_section(CONF *conf, const char *section);
+int TS_CONF_set_serial(CONF *conf, const char *section, TS_serial_cb cb,
+    TS_RESP_CTX *ctx);
+int TS_CONF_set_crypto_device(CONF *conf, const char *section,
+    const char *device);
+int TS_CONF_set_default_engine(const char *name);
+int TS_CONF_set_signer_cert(CONF *conf, const char *section,
+    const char *cert, TS_RESP_CTX *ctx);
+int TS_CONF_set_certs(CONF *conf, const char *section, const char *certs,
+    TS_RESP_CTX *ctx);
+int TS_CONF_set_signer_key(CONF *conf, const char *section,
+    const char *key, const char *pass, TS_RESP_CTX *ctx);
+int TS_CONF_set_def_policy(CONF *conf, const char *section,
+    const char *policy, TS_RESP_CTX *ctx);
+int TS_CONF_set_policies(CONF *conf, const char *section, TS_RESP_CTX *ctx);
+int TS_CONF_set_digests(CONF *conf, const char *section, TS_RESP_CTX *ctx);
+int TS_CONF_set_accuracy(CONF *conf, const char *section, TS_RESP_CTX *ctx);
+int TS_CONF_set_clock_precision_digits(CONF *conf, const char *section,
+    TS_RESP_CTX *ctx);
+int TS_CONF_set_ordering(CONF *conf, const char *section, TS_RESP_CTX *ctx);
+int TS_CONF_set_tsa_name(CONF *conf, const char *section, TS_RESP_CTX *ctx);
+int TS_CONF_set_ess_cert_id_chain(CONF *conf, const char *section,
+    TS_RESP_CTX *ctx);
+
+/* -------------------------------------------------- */
+/* BEGIN ERROR CODES */
+/* The following lines are auto generated by the script mkerr.pl. Any changes
+ * made after this point may be overwritten when the script is next run.
+ */
+void ERR_load_TS_strings(void);
+
+/* Error codes for the TS functions. */
+
+/* Function codes. */
+#define TS_F_D2I_TS_RESP				 147
+#define TS_F_DEF_SERIAL_CB				 110
+#define TS_F_DEF_TIME_CB				 111
+#define TS_F_ESS_ADD_SIGNING_CERT			 112
+#define TS_F_ESS_CERT_ID_NEW_INIT			 113
+#define TS_F_ESS_SIGNING_CERT_NEW_INIT			 114
+#define TS_F_INT_TS_RESP_VERIFY_TOKEN			 149
+#define TS_F_PKCS7_TO_TS_TST_INFO			 148
+#define TS_F_TS_ACCURACY_SET_MICROS			 115
+#define TS_F_TS_ACCURACY_SET_MILLIS			 116
+#define TS_F_TS_ACCURACY_SET_SECONDS			 117
+#define TS_F_TS_CHECK_IMPRINTS				 100
+#define TS_F_TS_CHECK_NONCES				 101
+#define TS_F_TS_CHECK_POLICY				 102
+#define TS_F_TS_CHECK_SIGNING_CERTS			 103
+#define TS_F_TS_CHECK_STATUS_INFO			 104
+#define TS_F_TS_COMPUTE_IMPRINT				 145
+#define TS_F_TS_CONF_SET_DEFAULT_ENGINE			 146
+#define TS_F_TS_GET_STATUS_TEXT				 105
+#define TS_F_TS_MSG_IMPRINT_SET_ALGO			 118
+#define TS_F_TS_REQ_SET_MSG_IMPRINT			 119
+#define TS_F_TS_REQ_SET_NONCE				 120
+#define TS_F_TS_REQ_SET_POLICY_ID			 121
+#define TS_F_TS_RESP_CREATE_RESPONSE			 122
+#define TS_F_TS_RESP_CREATE_TST_INFO			 123
+#define TS_F_TS_RESP_CTX_ADD_FAILURE_INFO		 124
+#define TS_F_TS_RESP_CTX_ADD_MD				 125
+#define TS_F_TS_RESP_CTX_ADD_POLICY			 126
+#define TS_F_TS_RESP_CTX_NEW				 127
+#define TS_F_TS_RESP_CTX_SET_ACCURACY			 128
+#define TS_F_TS_RESP_CTX_SET_CERTS			 129
+#define TS_F_TS_RESP_CTX_SET_DEF_POLICY			 130
+#define TS_F_TS_RESP_CTX_SET_SIGNER_CERT		 131
+#define TS_F_TS_RESP_CTX_SET_STATUS_INFO		 132
+#define TS_F_TS_RESP_GET_POLICY				 133
+#define TS_F_TS_RESP_SET_GENTIME_WITH_PRECISION		 134
+#define TS_F_TS_RESP_SET_STATUS_INFO			 135
+#define TS_F_TS_RESP_SET_TST_INFO			 150
+#define TS_F_TS_RESP_SIGN				 136
+#define TS_F_TS_RESP_VERIFY_SIGNATURE			 106
+#define TS_F_TS_RESP_VERIFY_TOKEN			 107
+#define TS_F_TS_TST_INFO_SET_ACCURACY			 137
+#define TS_F_TS_TST_INFO_SET_MSG_IMPRINT		 138
+#define TS_F_TS_TST_INFO_SET_NONCE			 139
+#define TS_F_TS_TST_INFO_SET_POLICY_ID			 140
+#define TS_F_TS_TST_INFO_SET_SERIAL			 141
+#define TS_F_TS_TST_INFO_SET_TIME			 142
+#define TS_F_TS_TST_INFO_SET_TSA			 143
+#define TS_F_TS_VERIFY					 108
+#define TS_F_TS_VERIFY_CERT				 109
+#define TS_F_TS_VERIFY_CTX_NEW				 144
+
+/* Reason codes. */
+#define TS_R_BAD_PKCS7_TYPE				 132
+#define TS_R_BAD_TYPE					 133
+#define TS_R_CERTIFICATE_VERIFY_ERROR			 100
+#define TS_R_COULD_NOT_SET_ENGINE			 127
+#define TS_R_COULD_NOT_SET_TIME				 115
+#define TS_R_D2I_TS_RESP_INT_FAILED			 128
+#define TS_R_DETACHED_CONTENT				 134
+#define TS_R_ESS_ADD_SIGNING_CERT_ERROR			 116
+#define TS_R_ESS_SIGNING_CERTIFICATE_ERROR		 101
+#define TS_R_INVALID_NULL_POINTER			 102
+#define TS_R_INVALID_SIGNER_CERTIFICATE_PURPOSE		 117
+#define TS_R_MESSAGE_IMPRINT_MISMATCH			 103
+#define TS_R_NONCE_MISMATCH				 104
+#define TS_R_NONCE_NOT_RETURNED				 105
+#define TS_R_NO_CONTENT					 106
+#define TS_R_NO_TIME_STAMP_TOKEN			 107
+#define TS_R_PKCS7_ADD_SIGNATURE_ERROR			 118
+#define TS_R_PKCS7_ADD_SIGNED_ATTR_ERROR		 119
+#define TS_R_PKCS7_TO_TS_TST_INFO_FAILED		 129
+#define TS_R_POLICY_MISMATCH				 108
+#define TS_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE	 120
+#define TS_R_RESPONSE_SETUP_ERROR			 121
+#define TS_R_SIGNATURE_FAILURE				 109
+#define TS_R_THERE_MUST_BE_ONE_SIGNER			 110
+#define TS_R_TIME_SYSCALL_ERROR				 122
+#define TS_R_TOKEN_NOT_PRESENT				 130
+#define TS_R_TOKEN_PRESENT				 131
+#define TS_R_TSA_NAME_MISMATCH				 111
+#define TS_R_TSA_UNTRUSTED				 112
+#define TS_R_TST_INFO_SETUP_ERROR			 123
+#define TS_R_TS_DATASIGN				 124
+#define TS_R_UNACCEPTABLE_POLICY			 125
+#define TS_R_UNSUPPORTED_MD_ALGORITHM			 126
+#define TS_R_UNSUPPORTED_VERSION			 113
+#define TS_R_WRONG_CONTENT_TYPE				 114
+
+#ifdef  __cplusplus
+}
+#endif
+#endif