/*
 * {- join("\n * ", @autowarntext) -}
 *
 * Copyright 2000-2021 The OpenSSL Project Authors. 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
 */

/* clang-format off */
{-
use OpenSSL::stackhash qw(generate_stack_macros);
-}
/* clang-format on */

#ifndef OPENSSL_OCSP_H
#define OPENSSL_OCSP_H
#pragma once

#include <openssl/macros.h>
#ifndef OPENSSL_NO_DEPRECATED_3_0
#define HEADER_OCSP_H
#endif

#include <openssl/opensslconf.h>
#include <openssl/http.h>
#include <openssl/asn1.h>

/*
 * These definitions are outside the OPENSSL_NO_OCSP guard because although for
 * historical reasons they have OCSP_* names, they can actually be used
 * independently of OCSP. E.g. see RFC5280
 */
/*-
 *   CRLReason ::= ENUMERATED {
 *        unspecified             (0),
 *        keyCompromise           (1),
 *        cACompromise            (2),
 *        affiliationChanged      (3),
 *        superseded              (4),
 *        cessationOfOperation    (5),
 *        certificateHold         (6),
 *        -- value 7 is not used
 *        removeFromCRL           (8),
 *        privilegeWithdrawn      (9),
 *        aACompromise           (10) }
 */
#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
#define OCSP_REVOKED_STATUS_PRIVILEGEWITHDRAWN 9
#define OCSP_REVOKED_STATUS_AACOMPROMISE 10

#ifndef OPENSSL_NO_OCSP

#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include <openssl/safestack.h>
#include <openssl/ocsperr.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
#define OCSP_PARTIAL_CHAIN 0x1000

typedef struct ocsp_cert_id_st OCSP_CERTID;
typedef struct ocsp_one_request_st OCSP_ONEREQ;
typedef struct ocsp_req_info_st OCSP_REQINFO;
typedef struct ocsp_signature_st OCSP_SIGNATURE;
typedef struct ocsp_request_st OCSP_REQUEST;

/* clang-format off */
{-
    generate_stack_macros("OCSP_CERTID")
    .generate_stack_macros("OCSP_ONEREQ");
-}
/* clang-format on */

#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

typedef struct ocsp_resp_bytes_st OCSP_RESPBYTES;

#define V_OCSP_RESPID_NAME 0
#define V_OCSP_RESPID_KEY 1

/* clang-format off */
{-
    generate_stack_macros("OCSP_RESPID");
-}
/* clang-format on */

typedef struct ocsp_revoked_info_st OCSP_REVOKEDINFO;

#define V_OCSP_CERTSTATUS_GOOD 0
#define V_OCSP_CERTSTATUS_REVOKED 1
#define V_OCSP_CERTSTATUS_UNKNOWN 2

typedef struct ocsp_cert_status_st OCSP_CERTSTATUS;
typedef struct ocsp_single_response_st OCSP_SINGLERESP;

/* clang-format off */
{-
    generate_stack_macros("OCSP_SINGLERESP");
-}
/* clang-format on */

typedef struct ocsp_response_data_st OCSP_RESPDATA;

typedef struct ocsp_basic_response_st OCSP_BASICRESP;

typedef struct ocsp_crl_id_st OCSP_CRLID;
typedef struct ocsp_service_locator_st 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( \
    (d2i_of_void *)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( \
    (d2i_of_void *)d2i_OCSP_RESPONSE, PEM_STRING_OCSP_RESPONSE,                   \
    bp, (char **)(x), cb, NULL)

#define PEM_write_bio_OCSP_REQUEST(bp, o)                                        \
    PEM_ASN1_write_bio((i2d_of_void *)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((i2d_of_void *)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 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((i2d_of_void *)i2d_OCSP_CERTSTATUS, \
        (d2i_of_void *)d2i_OCSP_CERTSTATUS, (char *)(cs))

DECLARE_ASN1_DUP_FUNCTION(OCSP_CERTID)

OSSL_HTTP_REQ_CTX *OCSP_sendreq_new(BIO *io, const char *path,
    const OCSP_REQUEST *req, int buf_size);
OCSP_RESPONSE *OCSP_sendreq_bio(BIO *b, const char *path, OCSP_REQUEST *req);

#ifndef OPENSSL_NO_DEPRECATED_3_0
typedef OSSL_HTTP_REQ_CTX OCSP_REQ_CTX;
#define OCSP_REQ_CTX_new(io, buf_size) \
    OSSL_HTTP_REQ_CTX_new(io, io, buf_size)
#define OCSP_REQ_CTX_free OSSL_HTTP_REQ_CTX_free
#define OCSP_REQ_CTX_http(rctx, op, path) \
    (OSSL_HTTP_REQ_CTX_set_expected(rctx, NULL, 1 /* asn1 */, 0, 0) && OSSL_HTTP_REQ_CTX_set_request_line(rctx, strcmp(op, "POST") == 0, NULL, NULL, path))
#define OCSP_REQ_CTX_add1_header OSSL_HTTP_REQ_CTX_add1_header
#define OCSP_REQ_CTX_i2d(r, it, req) \
    OSSL_HTTP_REQ_CTX_set1_req(r, "application/ocsp-request", it, req)
#define OCSP_REQ_CTX_set1_req(r, req) \
    OCSP_REQ_CTX_i2d(r, ASN1_ITEM_rptr(OCSP_REQUEST), (ASN1_VALUE *)(req))
#define OCSP_REQ_CTX_nbio OSSL_HTTP_REQ_CTX_nbio
#define OCSP_REQ_CTX_nbio_d2i OSSL_HTTP_REQ_CTX_nbio_d2i
#define OCSP_sendreq_nbio(p, r)                       \
    OSSL_HTTP_REQ_CTX_nbio_d2i(r, (ASN1_VALUE **)(p), \
        ASN1_ITEM_rptr(OCSP_RESPONSE))
#define OCSP_REQ_CTX_get0_mem_bio OSSL_HTTP_REQ_CTX_get0_mem_bio
#define OCSP_set_max_response_length OSSL_HTTP_REQ_CTX_set_max_response_length
#endif

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

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

const ASN1_OCTET_STRING *OCSP_resp_get0_signature(const OCSP_BASICRESP *bs);
const X509_ALGOR *OCSP_resp_get0_tbs_sigalg(const OCSP_BASICRESP *bs);
const OCSP_RESPDATA *OCSP_resp_get0_respdata(const OCSP_BASICRESP *bs);
int OCSP_resp_get0_signer(OCSP_BASICRESP *bs, X509 **signer,
    STACK_OF(X509) *extra_certs);

int OCSP_resp_count(OCSP_BASICRESP *bs);
OCSP_SINGLERESP *OCSP_resp_get0(OCSP_BASICRESP *bs, int idx);
const ASN1_GENERALIZEDTIME *OCSP_resp_get0_produced_at(const OCSP_BASICRESP *bs);
const STACK_OF(X509) *OCSP_resp_get0_certs(const OCSP_BASICRESP *bs);
int OCSP_resp_get0_id(const OCSP_BASICRESP *bs,
    const ASN1_OCTET_STRING **pid,
    const X509_NAME **pname);
int OCSP_resp_get1_id(const OCSP_BASICRESP *bs,
    ASN1_OCTET_STRING **pid,
    X509_NAME **pname);

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);

#define OCSP_parse_url(url, host, port, path, ssl) \
    OSSL_HTTP_parse_url(url, ssl, NULL, host, port, NULL, path, NULL, NULL)

int OCSP_id_issuer_cmp(const OCSP_CERTID *a, const OCSP_CERTID *b);
int OCSP_id_cmp(const OCSP_CERTID *a, const 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);
int OCSP_basic_sign_ctx(OCSP_BASICRESP *brsp,
    X509 *signer, EVP_MD_CTX *ctx,
    STACK_OF(X509) *certs, unsigned long flags);
int OCSP_RESPID_set_by_name(OCSP_RESPID *respid, X509 *cert);
int OCSP_RESPID_set_by_key_ex(OCSP_RESPID *respid, X509 *cert,
    OSSL_LIB_CTX *libctx, const char *propq);
int OCSP_RESPID_set_by_key(OCSP_RESPID *respid, X509 *cert);
int OCSP_RESPID_match_ex(OCSP_RESPID *respid, X509 *cert, OSSL_LIB_CTX *libctx,
    const char *propq);
int OCSP_RESPID_match(OCSP_RESPID *respid, X509 *cert);

X509_EXTENSION *OCSP_crlID_new(const 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(const X509_NAME *issuer, const 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, const 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, const 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, const 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, const 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);
const OCSP_CERTID *OCSP_SINGLERESP_get0_id(const OCSP_SINGLERESP *x);

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);

#ifdef __cplusplus
}
#endif
#endif /* !defined(OPENSSL_NO_OCSP) */
#endif
