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/* ocsp.h */
/*
 * Written by Tom Titchener <Tom_Titchener@groove.net> for the OpenSSL
 * project.
 */

/*
 * History: This file was transfered to Richard Levitte from CertCo by Kathy
 * Weinhold in mid-spring 2000 to be included in OpenSSL or released as a
 * patch kit.
 */

/* ====================================================================
 * Copyright (c) 1998-2000 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
 *    openssl-core@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_OCSP_H
# define HEADER_OCSP_H

# include <openssl/ossl_typ.h>
# include <openssl/x509.h>
# include <openssl/x509v3.h>
# include <openssl/safestack.h>

#ifdef  __cplusplus
extern "C" {
#endif

/* Various flags and values */

# define OCSP_DEFAULT_NONCE_LENGTH       16

# define OCSP_NOCERTS                    0x1
# define OCSP_NOINTERN                   0x2
# define OCSP_NOSIGS                     0x4
# define OCSP_NOCHAIN                    0x8
# define OCSP_NOVERIFY                   0x10
# define OCSP_NOEXPLICIT                 0x20
# define OCSP_NOCASIGN                   0x40
# define OCSP_NODELEGATED                0x80
# define OCSP_NOCHECKS                   0x100
# define OCSP_TRUSTOTHER                 0x200
# define OCSP_RESPID_KEY                 0x400
# define OCSP_NOTIME                     0x800

/*-  CertID ::= SEQUENCE {
 *       hashAlgorithm            AlgorithmIdentifier,
 *       issuerNameHash     OCTET STRING, -- Hash of Issuer's DN
 *       issuerKeyHash      OCTET STRING, -- Hash of Issuers public key (excluding the tag & length fields)
 *       serialNumber       CertificateSerialNumber }
 */
typedef struct ocsp_cert_id_st {
    X509_ALGOR *hashAlgorithm;
    ASN1_OCTET_STRING *issuerNameHash;
    ASN1_OCTET_STRING *issuerKeyHash;
    ASN1_INTEGER *serialNumber;
} OCSP_CERTID;

DECLARE_STACK_OF(OCSP_CERTID)

/*-  Request ::=     SEQUENCE {
 *       reqCert                    CertID,
 *       singleRequestExtensions    [0] EXPLICIT Extensions OPTIONAL }
 */
typedef struct ocsp_one_request_st {
    OCSP_CERTID *reqCert;
    STACK_OF(X509_EXTENSION) *singleRequestExtensions;
} OCSP_ONEREQ;

DECLARE_STACK_OF(OCSP_ONEREQ)
DECLARE_ASN1_SET_OF(OCSP_ONEREQ)

/*-  TBSRequest      ::=     SEQUENCE {
 *       version             [0] EXPLICIT Version DEFAULT v1,
 *       requestorName       [1] EXPLICIT GeneralName OPTIONAL,
 *       requestList             SEQUENCE OF Request,
 *       requestExtensions   [2] EXPLICIT Extensions OPTIONAL }
 */
typedef struct ocsp_req_info_st {
    ASN1_INTEGER *version;
    GENERAL_NAME *requestorName;
    STACK_OF(OCSP_ONEREQ) *requestList;
    STACK_OF(X509_EXTENSION) *requestExtensions;
} OCSP_REQINFO;

/*-  Signature       ::=     SEQUENCE {
 *       signatureAlgorithm   AlgorithmIdentifier,
 *       signature            BIT STRING,
 *       certs                [0] EXPLICIT SEQUENCE OF Certificate OPTIONAL }
 */
typedef struct ocsp_signature_st {
    X509_ALGOR *signatureAlgorithm;
    ASN1_BIT_STRING *signature;
    STACK_OF(X509) *certs;
} OCSP_SIGNATURE;

/*-  OCSPRequest     ::=     SEQUENCE {
 *       tbsRequest                  TBSRequest,
 *       optionalSignature   [0]     EXPLICIT Signature OPTIONAL }
 */
typedef struct ocsp_request_st {
    OCSP_REQINFO *tbsRequest;
    OCSP_SIGNATURE *optionalSignature; /* OPTIONAL */
} OCSP_REQUEST;

/*-  OCSPResponseStatus ::= ENUMERATED {
 *       successful            (0),      --Response has valid confirmations
 *       malformedRequest      (1),      --Illegal confirmation request
 *       internalError         (2),      --Internal error in issuer
 *       tryLater              (3),      --Try again later
 *                                       --(4) is not used
 *       sigRequired           (5),      --Must sign the request
 *       unauthorized          (6)       --Request unauthorized
 *   }
 */
# define OCSP_RESPONSE_STATUS_SUCCESSFUL          0
# define OCSP_RESPONSE_STATUS_MALFORMEDREQUEST     1
# define OCSP_RESPONSE_STATUS_INTERNALERROR        2
# define OCSP_RESPONSE_STATUS_TRYLATER             3
# define OCSP_RESPONSE_STATUS_SIGREQUIRED          5
# define OCSP_RESPONSE_STATUS_UNAUTHORIZED         6

/*-  ResponseBytes ::=       SEQUENCE {
 *       responseType   OBJECT IDENTIFIER,
 *       response       OCTET STRING }
 */
typedef struct ocsp_resp_bytes_st {
    ASN1_OBJECT *responseType;
    ASN1_OCTET_STRING *response;
} OCSP_RESPBYTES;

/*-  OCSPResponse ::= SEQUENCE {
 *      responseStatus         OCSPResponseStatus,
 *      responseBytes          [0] EXPLICIT ResponseBytes OPTIONAL }
 */
struct ocsp_response_st {
    ASN1_ENUMERATED *responseStatus;
    OCSP_RESPBYTES *responseBytes;
};

/*-  ResponderID ::= CHOICE {
 *      byName   [1] Name,
 *      byKey    [2] KeyHash }
 */
# define V_OCSP_RESPID_NAME 0
# define V_OCSP_RESPID_KEY  1
struct ocsp_responder_id_st {
    int type;
    union {
        X509_NAME *byName;
        ASN1_OCTET_STRING *byKey;
    } value;
};

DECLARE_STACK_OF(OCSP_RESPID)
DECLARE_ASN1_FUNCTIONS(OCSP_RESPID)

/*-  KeyHash ::= OCTET STRING --SHA-1 hash of responder's public key
 *                            --(excluding the tag and length fields)
 */

/*-  RevokedInfo ::= SEQUENCE {
 *       revocationTime              GeneralizedTime,
 *       revocationReason    [0]     EXPLICIT CRLReason OPTIONAL }
 */
typedef struct ocsp_revoked_info_st {
    ASN1_GENERALIZEDTIME *revocationTime;
    ASN1_ENUMERATED *revocationReason;
} OCSP_REVOKEDINFO;

/*-  CertStatus ::= CHOICE {
 *       good                [0]     IMPLICIT NULL,
 *       revoked             [1]     IMPLICIT RevokedInfo,
 *       unknown             [2]     IMPLICIT UnknownInfo }
 */
# define V_OCSP_CERTSTATUS_GOOD    0
# define V_OCSP_CERTSTATUS_REVOKED 1
# define V_OCSP_CERTSTATUS_UNKNOWN 2
typedef struct ocsp_cert_status_st {
    int type;
    union {
        ASN1_NULL *good;
        OCSP_REVOKEDINFO *revoked;
        ASN1_NULL *unknown;
    } value;
} OCSP_CERTSTATUS;

/*-  SingleResponse ::= SEQUENCE {
 *      certID                       CertID,
 *      certStatus                   CertStatus,
 *      thisUpdate                   GeneralizedTime,
 *      nextUpdate           [0]     EXPLICIT GeneralizedTime OPTIONAL,
 *      singleExtensions     [1]     EXPLICIT Extensions OPTIONAL }
 */
typedef struct ocsp_single_response_st {
    OCSP_CERTID *certId;
    OCSP_CERTSTATUS *certStatus;
    ASN1_GENERALIZEDTIME *thisUpdate;
    ASN1_GENERALIZEDTIME *nextUpdate;
    STACK_OF(X509_EXTENSION) *singleExtensions;
} OCSP_SINGLERESP;

DECLARE_STACK_OF(OCSP_SINGLERESP)
DECLARE_ASN1_SET_OF(OCSP_SINGLERESP)

/*-  ResponseData ::= SEQUENCE {
 *      version              [0] EXPLICIT Version DEFAULT v1,
 *      responderID              ResponderID,
 *      producedAt               GeneralizedTime,
 *      responses                SEQUENCE OF SingleResponse,
 *      responseExtensions   [1] EXPLICIT Extensions OPTIONAL }
 */
typedef struct ocsp_response_data_st {
    ASN1_INTEGER *version;
    OCSP_RESPID *responderId;
    ASN1_GENERALIZEDTIME *producedAt;
    STACK_OF(OCSP_SINGLERESP) *responses;
    STACK_OF(X509_EXTENSION) *responseExtensions;
} OCSP_RESPDATA;

/*-  BasicOCSPResponse       ::= SEQUENCE {
 *      tbsResponseData      ResponseData,
 *      signatureAlgorithm   AlgorithmIdentifier,
 *      signature            BIT STRING,
 *      certs                [0] EXPLICIT SEQUENCE OF Certificate OPTIONAL }
 */
  /*
   * Note 1: The value for "signature" is specified in the OCSP rfc2560 as
   * follows: "The value for the signature SHALL be computed on the hash of
   * the DER encoding ResponseData." This means that you must hash the
   * DER-encoded tbsResponseData, and then run it through a crypto-signing
   * function, which will (at least w/RSA) do a hash-'n'-private-encrypt
   * operation.  This seems a bit odd, but that's the spec.  Also note that
   * the data structures do not leave anywhere to independently specify the
   * algorithm used for the initial hash. So, we look at the
   * signature-specification algorithm, and try to do something intelligent.
   * -- Kathy Weinhold, CertCo
   */
  /*
   * Note 2: It seems that the mentioned passage from RFC 2560 (section
   * 4.2.1) is open for interpretation.  I've done tests against another
   * responder, and found that it doesn't do the double hashing that the RFC
   * seems to say one should.  Therefore, all relevant functions take a flag
   * saying which variant should be used.  -- Richard Levitte, OpenSSL team
   * and CeloCom
   */
typedef struct ocsp_basic_response_st {
    OCSP_RESPDATA *tbsResponseData;
    X509_ALGOR *signatureAlgorithm;
    ASN1_BIT_STRING *signature;
    STACK_OF(X509) *certs;
} OCSP_BASICRESP;

/*-
 *   CRLReason ::= ENUMERATED {
 *        unspecified             (0),
 *        keyCompromise           (1),
 *        cACompromise            (2),
 *        affiliationChanged      (3),
 *        superseded              (4),
 *        cessationOfOperation    (5),
 *        certificateHold         (6),
 *        removeFromCRL           (8) }
 */
# define OCSP_REVOKED_STATUS_NOSTATUS               -1
# define OCSP_REVOKED_STATUS_UNSPECIFIED             0
# define OCSP_REVOKED_STATUS_KEYCOMPROMISE           1
# define OCSP_REVOKED_STATUS_CACOMPROMISE            2
# define OCSP_REVOKED_STATUS_AFFILIATIONCHANGED      3
# define OCSP_REVOKED_STATUS_SUPERSEDED              4
# define OCSP_REVOKED_STATUS_CESSATIONOFOPERATION    5
# define OCSP_REVOKED_STATUS_CERTIFICATEHOLD         6
# define OCSP_REVOKED_STATUS_REMOVEFROMCRL           8

/*-
 * CrlID ::= SEQUENCE {
 *     crlUrl               [0]     EXPLICIT IA5String OPTIONAL,
 *     crlNum               [1]     EXPLICIT INTEGER OPTIONAL,
 *     crlTime              [2]     EXPLICIT GeneralizedTime OPTIONAL }
 */
typedef struct ocsp_crl_id_st {
    ASN1_IA5STRING *crlUrl;
    ASN1_INTEGER *crlNum;
    ASN1_GENERALIZEDTIME *crlTime;
} OCSP_CRLID;

/*-
 * ServiceLocator ::= SEQUENCE {
 *      issuer    Name,
 *      locator   AuthorityInfoAccessSyntax OPTIONAL }
 */
typedef struct ocsp_service_locator_st {
    X509_NAME *issuer;
    STACK_OF(ACCESS_DESCRIPTION) *locator;
} OCSP_SERVICELOC;

# define PEM_STRING_OCSP_REQUEST "OCSP REQUEST"
# define PEM_STRING_OCSP_RESPONSE "OCSP RESPONSE"

# define d2i_OCSP_REQUEST_bio(bp,p) ASN1_d2i_bio_of(OCSP_REQUEST,OCSP_REQUEST_new,d2i_OCSP_REQUEST,bp,p)

# define d2i_OCSP_RESPONSE_bio(bp,p) ASN1_d2i_bio_of(OCSP_RESPONSE,OCSP_RESPONSE_new,d2i_OCSP_RESPONSE,bp,p)

# define PEM_read_bio_OCSP_REQUEST(bp,x,cb) (OCSP_REQUEST *)PEM_ASN1_read_bio( \
     (char *(*)())d2i_OCSP_REQUEST,PEM_STRING_OCSP_REQUEST,bp,(char **)x,cb,NULL)

# define PEM_read_bio_OCSP_RESPONSE(bp,x,cb)(OCSP_RESPONSE *)PEM_ASN1_read_bio(\
     (char *(*)())d2i_OCSP_RESPONSE,PEM_STRING_OCSP_RESPONSE,bp,(char **)x,cb,NULL)

# define PEM_write_bio_OCSP_REQUEST(bp,o) \
    PEM_ASN1_write_bio((int (*)())i2d_OCSP_REQUEST,PEM_STRING_OCSP_REQUEST,\
                        bp,(char *)o, NULL,NULL,0,NULL,NULL)

# define PEM_write_bio_OCSP_RESPONSE(bp,o) \
    PEM_ASN1_write_bio((int (*)())i2d_OCSP_RESPONSE,PEM_STRING_OCSP_RESPONSE,\
                        bp,(char *)o, NULL,NULL,0,NULL,NULL)

# define i2d_OCSP_RESPONSE_bio(bp,o) ASN1_i2d_bio_of(OCSP_RESPONSE,i2d_OCSP_RESPONSE,bp,o)

# define i2d_OCSP_REQUEST_bio(bp,o) ASN1_i2d_bio_of(OCSP_REQUEST,i2d_OCSP_REQUEST,bp,o)

# define OCSP_REQUEST_sign(o,pkey,md) \
        ASN1_item_sign(ASN1_ITEM_rptr(OCSP_REQINFO),\
                o->optionalSignature->signatureAlgorithm,NULL,\
                o->optionalSignature->signature,o->tbsRequest,pkey,md)

# define OCSP_BASICRESP_sign(o,pkey,md,d) \
        ASN1_item_sign(ASN1_ITEM_rptr(OCSP_RESPDATA),o->signatureAlgorithm,NULL,\
                o->signature,o->tbsResponseData,pkey,md)

# define OCSP_REQUEST_verify(a,r) ASN1_item_verify(ASN1_ITEM_rptr(OCSP_REQINFO),\
        a->optionalSignature->signatureAlgorithm,\
        a->optionalSignature->signature,a->tbsRequest,r)

# define OCSP_BASICRESP_verify(a,r,d) ASN1_item_verify(ASN1_ITEM_rptr(OCSP_RESPDATA),\
        a->signatureAlgorithm,a->signature,a->tbsResponseData,r)

# define ASN1_BIT_STRING_digest(data,type,md,len) \
        ASN1_item_digest(ASN1_ITEM_rptr(ASN1_BIT_STRING),type,data,md,len)

# define OCSP_CERTSTATUS_dup(cs)\
                (OCSP_CERTSTATUS*)ASN1_dup((int(*)())i2d_OCSP_CERTSTATUS,\
                (char *(*)())d2i_OCSP_CERTSTATUS,(char *)(cs))

OCSP_CERTID *OCSP_CERTID_dup(OCSP_CERTID *id);

OCSP_RESPONSE *OCSP_sendreq_bio(BIO *b, const char *path, OCSP_REQUEST *req);
OCSP_REQ_CTX *OCSP_sendreq_new(BIO *io, const char *path, OCSP_REQUEST *req,
                               int maxline);
int OCSP_REQ_CTX_nbio(OCSP_REQ_CTX *rctx);
int OCSP_sendreq_nbio(OCSP_RESPONSE **presp, OCSP_REQ_CTX *rctx);
OCSP_REQ_CTX *OCSP_REQ_CTX_new(BIO *io, int maxline);
void OCSP_REQ_CTX_free(OCSP_REQ_CTX *rctx);
void OCSP_set_max_response_length(OCSP_REQ_CTX *rctx, unsigned long len);
int OCSP_REQ_CTX_i2d(OCSP_REQ_CTX *rctx, const ASN1_ITEM *it,
                     ASN1_VALUE *val);
int OCSP_REQ_CTX_nbio_d2i(OCSP_REQ_CTX *rctx, ASN1_VALUE **pval,
                          const ASN1_ITEM *it);
BIO *OCSP_REQ_CTX_get0_mem_bio(OCSP_REQ_CTX *rctx);
int OCSP_REQ_CTX_i2d(OCSP_REQ_CTX *rctx, const ASN1_ITEM *it,
                     ASN1_VALUE *val);
int OCSP_REQ_CTX_http(OCSP_REQ_CTX *rctx, const char *op, const char *path);
int OCSP_REQ_CTX_set1_req(OCSP_REQ_CTX *rctx, OCSP_REQUEST *req);
int OCSP_REQ_CTX_add1_header(OCSP_REQ_CTX *rctx,
                             const char *name, const char *value);

OCSP_CERTID *OCSP_cert_to_id(const EVP_MD *dgst, X509 *subject, X509 *issuer);

OCSP_CERTID *OCSP_cert_id_new(const EVP_MD *dgst,
                              X509_NAME *issuerName,
                              ASN1_BIT_STRING *issuerKey,
                              ASN1_INTEGER *serialNumber);

OCSP_ONEREQ *OCSP_request_add0_id(OCSP_REQUEST *req, OCSP_CERTID *cid);

int OCSP_request_add1_nonce(OCSP_REQUEST *req, unsigned char *val, int len);
int OCSP_basic_add1_nonce(OCSP_BASICRESP *resp, unsigned char *val, int len);
int OCSP_check_nonce(OCSP_REQUEST *req, OCSP_BASICRESP *bs);
int OCSP_copy_nonce(OCSP_BASICRESP *resp, OCSP_REQUEST *req);

int OCSP_request_set1_name(OCSP_REQUEST *req, X509_NAME *nm);
int OCSP_request_add1_cert(OCSP_REQUEST *req, X509 *cert);

int OCSP_request_sign(OCSP_REQUEST *req,
                      X509 *signer,
                      EVP_PKEY *key,
                      const EVP_MD *dgst,
                      STACK_OF(X509) *certs, unsigned long flags);

int OCSP_response_status(OCSP_RESPONSE *resp);
OCSP_BASICRESP *OCSP_response_get1_basic(OCSP_RESPONSE *resp);

int OCSP_resp_count(OCSP_BASICRESP *bs);
OCSP_SINGLERESP *OCSP_resp_get0(OCSP_BASICRESP *bs, int idx);
int OCSP_resp_find(OCSP_BASICRESP *bs, OCSP_CERTID *id, int last);
int OCSP_single_get0_status(OCSP_SINGLERESP *single, int *reason,
                            ASN1_GENERALIZEDTIME **revtime,
                            ASN1_GENERALIZEDTIME **thisupd,
                            ASN1_GENERALIZEDTIME **nextupd);
int OCSP_resp_find_status(OCSP_BASICRESP *bs, OCSP_CERTID *id, int *status,
                          int *reason,
                          ASN1_GENERALIZEDTIME **revtime,
                          ASN1_GENERALIZEDTIME **thisupd,
                          ASN1_GENERALIZEDTIME **nextupd);
int OCSP_check_validity(ASN1_GENERALIZEDTIME *thisupd,
                        ASN1_GENERALIZEDTIME *nextupd, long sec, long maxsec);

int OCSP_request_verify(OCSP_REQUEST *req, STACK_OF(X509) *certs,
                        X509_STORE *store, unsigned long flags);

int OCSP_parse_url(const char *url, char **phost, char **pport, char **ppath,
                   int *pssl);

int OCSP_id_issuer_cmp(OCSP_CERTID *a, OCSP_CERTID *b);
int OCSP_id_cmp(OCSP_CERTID *a, OCSP_CERTID *b);

int OCSP_request_onereq_count(OCSP_REQUEST *req);
OCSP_ONEREQ *OCSP_request_onereq_get0(OCSP_REQUEST *req, int i);
OCSP_CERTID *OCSP_onereq_get0_id(OCSP_ONEREQ *one);
int OCSP_id_get0_info(ASN1_OCTET_STRING **piNameHash, ASN1_OBJECT **pmd,
                      ASN1_OCTET_STRING **pikeyHash,
                      ASN1_INTEGER **pserial, OCSP_CERTID *cid);
int OCSP_request_is_signed(OCSP_REQUEST *req);
OCSP_RESPONSE *OCSP_response_create(int status, OCSP_BASICRESP *bs);
OCSP_SINGLERESP *OCSP_basic_add1_status(OCSP_BASICRESP *rsp,
                                        OCSP_CERTID *cid,
                                        int status, int reason,
                                        ASN1_TIME *revtime,
                                        ASN1_TIME *thisupd,
                                        ASN1_TIME *nextupd);
int OCSP_basic_add1_cert(OCSP_BASICRESP *resp, X509 *cert);
int OCSP_basic_sign(OCSP_BASICRESP *brsp,
                    X509 *signer, EVP_PKEY *key, const EVP_MD *dgst,
                    STACK_OF(X509) *certs, unsigned long flags);

X509_EXTENSION *OCSP_crlID_new(char *url, long *n, char *tim);

X509_EXTENSION *OCSP_accept_responses_new(char **oids);

X509_EXTENSION *OCSP_archive_cutoff_new(char *tim);

X509_EXTENSION *OCSP_url_svcloc_new(X509_NAME *issuer, char **urls);

int OCSP_REQUEST_get_ext_count(OCSP_REQUEST *x);
int OCSP_REQUEST_get_ext_by_NID(OCSP_REQUEST *x, int nid, int lastpos);
int OCSP_REQUEST_get_ext_by_OBJ(OCSP_REQUEST *x, ASN1_OBJECT *obj,
                                int lastpos);
int OCSP_REQUEST_get_ext_by_critical(OCSP_REQUEST *x, int crit, int lastpos);
X509_EXTENSION *OCSP_REQUEST_get_ext(OCSP_REQUEST *x, int loc);
X509_EXTENSION *OCSP_REQUEST_delete_ext(OCSP_REQUEST *x, int loc);
void *OCSP_REQUEST_get1_ext_d2i(OCSP_REQUEST *x, int nid, int *crit,
                                int *idx);
int OCSP_REQUEST_add1_ext_i2d(OCSP_REQUEST *x, int nid, void *value, int crit,
                              unsigned long flags);
int OCSP_REQUEST_add_ext(OCSP_REQUEST *x, X509_EXTENSION *ex, int loc);

int OCSP_ONEREQ_get_ext_count(OCSP_ONEREQ *x);
int OCSP_ONEREQ_get_ext_by_NID(OCSP_ONEREQ *x, int nid, int lastpos);
int OCSP_ONEREQ_get_ext_by_OBJ(OCSP_ONEREQ *x, ASN1_OBJECT *obj, int lastpos);
int OCSP_ONEREQ_get_ext_by_critical(OCSP_ONEREQ *x, int crit, int lastpos);
X509_EXTENSION *OCSP_ONEREQ_get_ext(OCSP_ONEREQ *x, int loc);
X509_EXTENSION *OCSP_ONEREQ_delete_ext(OCSP_ONEREQ *x, int loc);
void *OCSP_ONEREQ_get1_ext_d2i(OCSP_ONEREQ *x, int nid, int *crit, int *idx);
int OCSP_ONEREQ_add1_ext_i2d(OCSP_ONEREQ *x, int nid, void *value, int crit,
                             unsigned long flags);
int OCSP_ONEREQ_add_ext(OCSP_ONEREQ *x, X509_EXTENSION *ex, int loc);

int OCSP_BASICRESP_get_ext_count(OCSP_BASICRESP *x);
int OCSP_BASICRESP_get_ext_by_NID(OCSP_BASICRESP *x, int nid, int lastpos);
int OCSP_BASICRESP_get_ext_by_OBJ(OCSP_BASICRESP *x, ASN1_OBJECT *obj,
                                  int lastpos);
int OCSP_BASICRESP_get_ext_by_critical(OCSP_BASICRESP *x, int crit,
                                       int lastpos);
X509_EXTENSION *OCSP_BASICRESP_get_ext(OCSP_BASICRESP *x, int loc);
X509_EXTENSION *OCSP_BASICRESP_delete_ext(OCSP_BASICRESP *x, int loc);
void *OCSP_BASICRESP_get1_ext_d2i(OCSP_BASICRESP *x, int nid, int *crit,
                                  int *idx);
int OCSP_BASICRESP_add1_ext_i2d(OCSP_BASICRESP *x, int nid, void *value,
                                int crit, unsigned long flags);
int OCSP_BASICRESP_add_ext(OCSP_BASICRESP *x, X509_EXTENSION *ex, int loc);

int OCSP_SINGLERESP_get_ext_count(OCSP_SINGLERESP *x);
int OCSP_SINGLERESP_get_ext_by_NID(OCSP_SINGLERESP *x, int nid, int lastpos);
int OCSP_SINGLERESP_get_ext_by_OBJ(OCSP_SINGLERESP *x, ASN1_OBJECT *obj,
                                   int lastpos);
int OCSP_SINGLERESP_get_ext_by_critical(OCSP_SINGLERESP *x, int crit,
                                        int lastpos);
X509_EXTENSION *OCSP_SINGLERESP_get_ext(OCSP_SINGLERESP *x, int loc);
X509_EXTENSION *OCSP_SINGLERESP_delete_ext(OCSP_SINGLERESP *x, int loc);
void *OCSP_SINGLERESP_get1_ext_d2i(OCSP_SINGLERESP *x, int nid, int *crit,
                                   int *idx);
int OCSP_SINGLERESP_add1_ext_i2d(OCSP_SINGLERESP *x, int nid, void *value,
                                 int crit, unsigned long flags);
int OCSP_SINGLERESP_add_ext(OCSP_SINGLERESP *x, X509_EXTENSION *ex, int loc);

DECLARE_ASN1_FUNCTIONS(OCSP_SINGLERESP)
DECLARE_ASN1_FUNCTIONS(OCSP_CERTSTATUS)
DECLARE_ASN1_FUNCTIONS(OCSP_REVOKEDINFO)
DECLARE_ASN1_FUNCTIONS(OCSP_BASICRESP)
DECLARE_ASN1_FUNCTIONS(OCSP_RESPDATA)
DECLARE_ASN1_FUNCTIONS(OCSP_RESPID)
DECLARE_ASN1_FUNCTIONS(OCSP_RESPONSE)
DECLARE_ASN1_FUNCTIONS(OCSP_RESPBYTES)
DECLARE_ASN1_FUNCTIONS(OCSP_ONEREQ)
DECLARE_ASN1_FUNCTIONS(OCSP_CERTID)
DECLARE_ASN1_FUNCTIONS(OCSP_REQUEST)
DECLARE_ASN1_FUNCTIONS(OCSP_SIGNATURE)
DECLARE_ASN1_FUNCTIONS(OCSP_REQINFO)
DECLARE_ASN1_FUNCTIONS(OCSP_CRLID)
DECLARE_ASN1_FUNCTIONS(OCSP_SERVICELOC)

const char *OCSP_response_status_str(long s);
const char *OCSP_cert_status_str(long s);
const char *OCSP_crl_reason_str(long s);

int OCSP_REQUEST_print(BIO *bp, OCSP_REQUEST *a, unsigned long flags);
int OCSP_RESPONSE_print(BIO *bp, OCSP_RESPONSE *o, unsigned long flags);

int OCSP_basic_verify(OCSP_BASICRESP *bs, STACK_OF(X509) *certs,
                      X509_STORE *st, unsigned long flags);

/* 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_OCSP_strings(void);

/* Error codes for the OCSP functions. */

/* Function codes. */
# define OCSP_F_ASN1_STRING_ENCODE                        100
# define OCSP_F_D2I_OCSP_NONCE                            102
# define OCSP_F_OCSP_BASIC_ADD1_STATUS                    103
# define OCSP_F_OCSP_BASIC_SIGN                           104
# define OCSP_F_OCSP_BASIC_VERIFY                         105
# define OCSP_F_OCSP_CERT_ID_NEW                          101
# define OCSP_F_OCSP_CHECK_DELEGATED                      106
# define OCSP_F_OCSP_CHECK_IDS                            107
# define OCSP_F_OCSP_CHECK_ISSUER                         108
# define OCSP_F_OCSP_CHECK_VALIDITY                       115
# define OCSP_F_OCSP_MATCH_ISSUERID                       109
# define OCSP_F_OCSP_PARSE_URL                            114
# define OCSP_F_OCSP_REQUEST_SIGN                         110
# define OCSP_F_OCSP_REQUEST_VERIFY                       116
# define OCSP_F_OCSP_RESPONSE_GET1_BASIC                  111
# define OCSP_F_OCSP_SENDREQ_BIO                          112
# define OCSP_F_OCSP_SENDREQ_NBIO                         117
# define OCSP_F_PARSE_HTTP_LINE1                          118
# define OCSP_F_REQUEST_VERIFY                            113

/* Reason codes. */
# define OCSP_R_BAD_DATA                                  100
# define OCSP_R_CERTIFICATE_VERIFY_ERROR                  101
# define OCSP_R_DIGEST_ERR                                102
# define OCSP_R_ERROR_IN_NEXTUPDATE_FIELD                 122
# define OCSP_R_ERROR_IN_THISUPDATE_FIELD                 123
# define OCSP_R_ERROR_PARSING_URL                         121
# define OCSP_R_MISSING_OCSPSIGNING_USAGE                 103
# define OCSP_R_NEXTUPDATE_BEFORE_THISUPDATE              124
# define OCSP_R_NOT_BASIC_RESPONSE                        104
# define OCSP_R_NO_CERTIFICATES_IN_CHAIN                  105
# define OCSP_R_NO_CONTENT                                106
# define OCSP_R_NO_PUBLIC_KEY                             107
# define OCSP_R_NO_RESPONSE_DATA                          108
# define OCSP_R_NO_REVOKED_TIME                           109
# define OCSP_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE    110
# define OCSP_R_REQUEST_NOT_SIGNED                        128
# define OCSP_R_RESPONSE_CONTAINS_NO_REVOCATION_DATA      111
# define OCSP_R_ROOT_CA_NOT_TRUSTED                       112
# define OCSP_R_SERVER_READ_ERROR                         113
# define OCSP_R_SERVER_RESPONSE_ERROR                     114
# define OCSP_R_SERVER_RESPONSE_PARSE_ERROR               115
# define OCSP_R_SERVER_WRITE_ERROR                        116
# define OCSP_R_SIGNATURE_FAILURE                         117
# define OCSP_R_SIGNER_CERTIFICATE_NOT_FOUND              118
# define OCSP_R_STATUS_EXPIRED                            125
# define OCSP_R_STATUS_NOT_YET_VALID                      126
# define OCSP_R_STATUS_TOO_OLD                            127
# define OCSP_R_UNKNOWN_MESSAGE_DIGEST                    119
# define OCSP_R_UNKNOWN_NID                               120
# define OCSP_R_UNSUPPORTED_REQUESTORNAME_TYPE            129

#ifdef  __cplusplus
}
#endif
#endif
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