/*
 * WARNING: do not edit!
 * Generated by makefile from include\openssl\pkcs7.h.in
 *
 * Copyright 1995-2021 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
 */



#ifndef OPENSSL_PKCS7_H
# define OPENSSL_PKCS7_H
#ifdef OPENSSL_PRAGMA_ONCE
# pragma once
#endif

# include <openssl/macros.h>
# ifndef OPENSSL_NO_DEPRECATED_3_0
#  define HEADER_PKCS7_H
# endif

# include <openssl/asn1.h>
# include <openssl/bio.h>
# include <openssl/e_os2.h>

# include <openssl/symhacks.h>
# include <openssl/types.h>
# include <openssl/pkcs7err.h>

#ifndef OPENSSL_NO_PKCS7_SM2
#include <openssl/obj_mac.h>
#endif
#ifdef  __cplusplus
extern "C" {
#endif


/*-
Encryption_ID           DES-CBC
Digest_ID               MD5
Digest_Encryption_ID    rsaEncryption
Key_Encryption_ID       rsaEncryption
*/

typedef struct PKCS7_CTX_st {
    OSSL_LIB_CTX *libctx;
    char *propq;
} PKCS7_CTX;

typedef struct pkcs7_issuer_and_serial_st {
    X509_NAME *issuer;
    ASN1_INTEGER *serial;
} PKCS7_ISSUER_AND_SERIAL;

typedef struct pkcs7_signer_info_st {
    ASN1_INTEGER *version;      /* version 1 */
    PKCS7_ISSUER_AND_SERIAL *issuer_and_serial;
    X509_ALGOR *digest_alg;
    STACK_OF(X509_ATTRIBUTE) *auth_attr; /* [ 0 ] */
    X509_ALGOR *digest_enc_alg;
    ASN1_OCTET_STRING *enc_digest;
    STACK_OF(X509_ATTRIBUTE) *unauth_attr; /* [ 1 ] */
    /* The private key to sign with */
    EVP_PKEY *pkey;
    const PKCS7_CTX *ctx;
} PKCS7_SIGNER_INFO;
SKM_DEFINE_STACK_OF_INTERNAL(PKCS7_SIGNER_INFO, PKCS7_SIGNER_INFO, PKCS7_SIGNER_INFO)
#define sk_PKCS7_SIGNER_INFO_num(sk) OPENSSL_sk_num(ossl_check_const_PKCS7_SIGNER_INFO_sk_type(sk))
#define sk_PKCS7_SIGNER_INFO_value(sk, idx) ((PKCS7_SIGNER_INFO *)OPENSSL_sk_value(ossl_check_const_PKCS7_SIGNER_INFO_sk_type(sk), (idx)))
#define sk_PKCS7_SIGNER_INFO_new(cmp) ((STACK_OF(PKCS7_SIGNER_INFO) *)OPENSSL_sk_new(ossl_check_PKCS7_SIGNER_INFO_compfunc_type(cmp)))
#define sk_PKCS7_SIGNER_INFO_new_null() ((STACK_OF(PKCS7_SIGNER_INFO) *)OPENSSL_sk_new_null())
#define sk_PKCS7_SIGNER_INFO_new_reserve(cmp, n) ((STACK_OF(PKCS7_SIGNER_INFO) *)OPENSSL_sk_new_reserve(ossl_check_PKCS7_SIGNER_INFO_compfunc_type(cmp), (n)))
#define sk_PKCS7_SIGNER_INFO_reserve(sk, n) OPENSSL_sk_reserve(ossl_check_PKCS7_SIGNER_INFO_sk_type(sk), (n))
#define sk_PKCS7_SIGNER_INFO_free(sk) OPENSSL_sk_free(ossl_check_PKCS7_SIGNER_INFO_sk_type(sk))
#define sk_PKCS7_SIGNER_INFO_zero(sk) OPENSSL_sk_zero(ossl_check_PKCS7_SIGNER_INFO_sk_type(sk))
#define sk_PKCS7_SIGNER_INFO_delete(sk, i) ((PKCS7_SIGNER_INFO *)OPENSSL_sk_delete(ossl_check_PKCS7_SIGNER_INFO_sk_type(sk), (i)))
#define sk_PKCS7_SIGNER_INFO_delete_ptr(sk, ptr) ((PKCS7_SIGNER_INFO *)OPENSSL_sk_delete_ptr(ossl_check_PKCS7_SIGNER_INFO_sk_type(sk), ossl_check_PKCS7_SIGNER_INFO_type(ptr)))
#define sk_PKCS7_SIGNER_INFO_push(sk, ptr) OPENSSL_sk_push(ossl_check_PKCS7_SIGNER_INFO_sk_type(sk), ossl_check_PKCS7_SIGNER_INFO_type(ptr))
#define sk_PKCS7_SIGNER_INFO_unshift(sk, ptr) OPENSSL_sk_unshift(ossl_check_PKCS7_SIGNER_INFO_sk_type(sk), ossl_check_PKCS7_SIGNER_INFO_type(ptr))
#define sk_PKCS7_SIGNER_INFO_pop(sk) ((PKCS7_SIGNER_INFO *)OPENSSL_sk_pop(ossl_check_PKCS7_SIGNER_INFO_sk_type(sk)))
#define sk_PKCS7_SIGNER_INFO_shift(sk) ((PKCS7_SIGNER_INFO *)OPENSSL_sk_shift(ossl_check_PKCS7_SIGNER_INFO_sk_type(sk)))
#define sk_PKCS7_SIGNER_INFO_pop_free(sk, freefunc) OPENSSL_sk_pop_free(ossl_check_PKCS7_SIGNER_INFO_sk_type(sk),ossl_check_PKCS7_SIGNER_INFO_freefunc_type(freefunc))
#define sk_PKCS7_SIGNER_INFO_insert(sk, ptr, idx) OPENSSL_sk_insert(ossl_check_PKCS7_SIGNER_INFO_sk_type(sk), ossl_check_PKCS7_SIGNER_INFO_type(ptr), (idx))
#define sk_PKCS7_SIGNER_INFO_set(sk, idx, ptr) ((PKCS7_SIGNER_INFO *)OPENSSL_sk_set(ossl_check_PKCS7_SIGNER_INFO_sk_type(sk), (idx), ossl_check_PKCS7_SIGNER_INFO_type(ptr)))
#define sk_PKCS7_SIGNER_INFO_find(sk, ptr) OPENSSL_sk_find(ossl_check_PKCS7_SIGNER_INFO_sk_type(sk), ossl_check_PKCS7_SIGNER_INFO_type(ptr))
#define sk_PKCS7_SIGNER_INFO_find_ex(sk, ptr) OPENSSL_sk_find_ex(ossl_check_PKCS7_SIGNER_INFO_sk_type(sk), ossl_check_PKCS7_SIGNER_INFO_type(ptr))
#define sk_PKCS7_SIGNER_INFO_find_all(sk, ptr, pnum) OPENSSL_sk_find_all(ossl_check_PKCS7_SIGNER_INFO_sk_type(sk), ossl_check_PKCS7_SIGNER_INFO_type(ptr), pnum)
#define sk_PKCS7_SIGNER_INFO_sort(sk) OPENSSL_sk_sort(ossl_check_PKCS7_SIGNER_INFO_sk_type(sk))
#define sk_PKCS7_SIGNER_INFO_is_sorted(sk) OPENSSL_sk_is_sorted(ossl_check_const_PKCS7_SIGNER_INFO_sk_type(sk))
#define sk_PKCS7_SIGNER_INFO_dup(sk) ((STACK_OF(PKCS7_SIGNER_INFO) *)OPENSSL_sk_dup(ossl_check_const_PKCS7_SIGNER_INFO_sk_type(sk)))
#define sk_PKCS7_SIGNER_INFO_deep_copy(sk, copyfunc, freefunc) ((STACK_OF(PKCS7_SIGNER_INFO) *)OPENSSL_sk_deep_copy(ossl_check_const_PKCS7_SIGNER_INFO_sk_type(sk), ossl_check_PKCS7_SIGNER_INFO_copyfunc_type(copyfunc), ossl_check_PKCS7_SIGNER_INFO_freefunc_type(freefunc)))
#define sk_PKCS7_SIGNER_INFO_set_cmp_func(sk, cmp) ((sk_PKCS7_SIGNER_INFO_compfunc)OPENSSL_sk_set_cmp_func(ossl_check_PKCS7_SIGNER_INFO_sk_type(sk), ossl_check_PKCS7_SIGNER_INFO_compfunc_type(cmp)))


typedef struct pkcs7_recip_info_st {
    ASN1_INTEGER *version;      /* version 0 */
    PKCS7_ISSUER_AND_SERIAL *issuer_and_serial;
    X509_ALGOR *key_enc_algor;
    ASN1_OCTET_STRING *enc_key;
    X509 *cert;                 /* get the pub-key from this */
    const PKCS7_CTX *ctx;
} PKCS7_RECIP_INFO;
SKM_DEFINE_STACK_OF_INTERNAL(PKCS7_RECIP_INFO, PKCS7_RECIP_INFO, PKCS7_RECIP_INFO)
#define sk_PKCS7_RECIP_INFO_num(sk) OPENSSL_sk_num(ossl_check_const_PKCS7_RECIP_INFO_sk_type(sk))
#define sk_PKCS7_RECIP_INFO_value(sk, idx) ((PKCS7_RECIP_INFO *)OPENSSL_sk_value(ossl_check_const_PKCS7_RECIP_INFO_sk_type(sk), (idx)))
#define sk_PKCS7_RECIP_INFO_new(cmp) ((STACK_OF(PKCS7_RECIP_INFO) *)OPENSSL_sk_new(ossl_check_PKCS7_RECIP_INFO_compfunc_type(cmp)))
#define sk_PKCS7_RECIP_INFO_new_null() ((STACK_OF(PKCS7_RECIP_INFO) *)OPENSSL_sk_new_null())
#define sk_PKCS7_RECIP_INFO_new_reserve(cmp, n) ((STACK_OF(PKCS7_RECIP_INFO) *)OPENSSL_sk_new_reserve(ossl_check_PKCS7_RECIP_INFO_compfunc_type(cmp), (n)))
#define sk_PKCS7_RECIP_INFO_reserve(sk, n) OPENSSL_sk_reserve(ossl_check_PKCS7_RECIP_INFO_sk_type(sk), (n))
#define sk_PKCS7_RECIP_INFO_free(sk) OPENSSL_sk_free(ossl_check_PKCS7_RECIP_INFO_sk_type(sk))
#define sk_PKCS7_RECIP_INFO_zero(sk) OPENSSL_sk_zero(ossl_check_PKCS7_RECIP_INFO_sk_type(sk))
#define sk_PKCS7_RECIP_INFO_delete(sk, i) ((PKCS7_RECIP_INFO *)OPENSSL_sk_delete(ossl_check_PKCS7_RECIP_INFO_sk_type(sk), (i)))
#define sk_PKCS7_RECIP_INFO_delete_ptr(sk, ptr) ((PKCS7_RECIP_INFO *)OPENSSL_sk_delete_ptr(ossl_check_PKCS7_RECIP_INFO_sk_type(sk), ossl_check_PKCS7_RECIP_INFO_type(ptr)))
#define sk_PKCS7_RECIP_INFO_push(sk, ptr) OPENSSL_sk_push(ossl_check_PKCS7_RECIP_INFO_sk_type(sk), ossl_check_PKCS7_RECIP_INFO_type(ptr))
#define sk_PKCS7_RECIP_INFO_unshift(sk, ptr) OPENSSL_sk_unshift(ossl_check_PKCS7_RECIP_INFO_sk_type(sk), ossl_check_PKCS7_RECIP_INFO_type(ptr))
#define sk_PKCS7_RECIP_INFO_pop(sk) ((PKCS7_RECIP_INFO *)OPENSSL_sk_pop(ossl_check_PKCS7_RECIP_INFO_sk_type(sk)))
#define sk_PKCS7_RECIP_INFO_shift(sk) ((PKCS7_RECIP_INFO *)OPENSSL_sk_shift(ossl_check_PKCS7_RECIP_INFO_sk_type(sk)))
#define sk_PKCS7_RECIP_INFO_pop_free(sk, freefunc) OPENSSL_sk_pop_free(ossl_check_PKCS7_RECIP_INFO_sk_type(sk),ossl_check_PKCS7_RECIP_INFO_freefunc_type(freefunc))
#define sk_PKCS7_RECIP_INFO_insert(sk, ptr, idx) OPENSSL_sk_insert(ossl_check_PKCS7_RECIP_INFO_sk_type(sk), ossl_check_PKCS7_RECIP_INFO_type(ptr), (idx))
#define sk_PKCS7_RECIP_INFO_set(sk, idx, ptr) ((PKCS7_RECIP_INFO *)OPENSSL_sk_set(ossl_check_PKCS7_RECIP_INFO_sk_type(sk), (idx), ossl_check_PKCS7_RECIP_INFO_type(ptr)))
#define sk_PKCS7_RECIP_INFO_find(sk, ptr) OPENSSL_sk_find(ossl_check_PKCS7_RECIP_INFO_sk_type(sk), ossl_check_PKCS7_RECIP_INFO_type(ptr))
#define sk_PKCS7_RECIP_INFO_find_ex(sk, ptr) OPENSSL_sk_find_ex(ossl_check_PKCS7_RECIP_INFO_sk_type(sk), ossl_check_PKCS7_RECIP_INFO_type(ptr))
#define sk_PKCS7_RECIP_INFO_find_all(sk, ptr, pnum) OPENSSL_sk_find_all(ossl_check_PKCS7_RECIP_INFO_sk_type(sk), ossl_check_PKCS7_RECIP_INFO_type(ptr), pnum)
#define sk_PKCS7_RECIP_INFO_sort(sk) OPENSSL_sk_sort(ossl_check_PKCS7_RECIP_INFO_sk_type(sk))
#define sk_PKCS7_RECIP_INFO_is_sorted(sk) OPENSSL_sk_is_sorted(ossl_check_const_PKCS7_RECIP_INFO_sk_type(sk))
#define sk_PKCS7_RECIP_INFO_dup(sk) ((STACK_OF(PKCS7_RECIP_INFO) *)OPENSSL_sk_dup(ossl_check_const_PKCS7_RECIP_INFO_sk_type(sk)))
#define sk_PKCS7_RECIP_INFO_deep_copy(sk, copyfunc, freefunc) ((STACK_OF(PKCS7_RECIP_INFO) *)OPENSSL_sk_deep_copy(ossl_check_const_PKCS7_RECIP_INFO_sk_type(sk), ossl_check_PKCS7_RECIP_INFO_copyfunc_type(copyfunc), ossl_check_PKCS7_RECIP_INFO_freefunc_type(freefunc)))
#define sk_PKCS7_RECIP_INFO_set_cmp_func(sk, cmp) ((sk_PKCS7_RECIP_INFO_compfunc)OPENSSL_sk_set_cmp_func(ossl_check_PKCS7_RECIP_INFO_sk_type(sk), ossl_check_PKCS7_RECIP_INFO_compfunc_type(cmp)))



typedef struct pkcs7_signed_st {
    ASN1_INTEGER *version;      /* version 1 */
    STACK_OF(X509_ALGOR) *md_algs; /* md used */
    STACK_OF(X509) *cert;       /* [ 0 ] */
    STACK_OF(X509_CRL) *crl;    /* [ 1 ] */
    STACK_OF(PKCS7_SIGNER_INFO) *signer_info;
    struct pkcs7_st *contents;
} PKCS7_SIGNED;
/*
 * The above structure is very very similar to PKCS7_SIGN_ENVELOPE. How about
 * merging the two
 */

typedef struct pkcs7_enc_content_st {
    ASN1_OBJECT *content_type;
    X509_ALGOR *algorithm;
    ASN1_OCTET_STRING *enc_data; /* [ 0 ] */
    const EVP_CIPHER *cipher;
    const PKCS7_CTX *ctx;
} PKCS7_ENC_CONTENT;

typedef struct pkcs7_enveloped_st {
    ASN1_INTEGER *version;      /* version 0 */
    STACK_OF(PKCS7_RECIP_INFO) *recipientinfo;
    PKCS7_ENC_CONTENT *enc_data;
} PKCS7_ENVELOPE;

typedef struct pkcs7_signedandenveloped_st {
    ASN1_INTEGER *version;      /* version 1 */
    STACK_OF(X509_ALGOR) *md_algs; /* md used */
    STACK_OF(X509) *cert;       /* [ 0 ] */
    STACK_OF(X509_CRL) *crl;    /* [ 1 ] */
    STACK_OF(PKCS7_SIGNER_INFO) *signer_info;
    PKCS7_ENC_CONTENT *enc_data;
    STACK_OF(PKCS7_RECIP_INFO) *recipientinfo;
} PKCS7_SIGN_ENVELOPE;

typedef struct pkcs7_digest_st {
    ASN1_INTEGER *version;      /* version 0 */
    X509_ALGOR *md;             /* md used */
    struct pkcs7_st *contents;
    ASN1_OCTET_STRING *digest;
} PKCS7_DIGEST;

typedef struct pkcs7_encrypted_st {
    ASN1_INTEGER *version;      /* version 0 */
    PKCS7_ENC_CONTENT *enc_data;
} PKCS7_ENCRYPT;

typedef struct pkcs7_st {
    /*
     * The following is non NULL if it contains ASN1 encoding of this
     * structure
     */
    unsigned char *asn1;
    long length;
# define PKCS7_S_HEADER  0
# define PKCS7_S_BODY    1
# define PKCS7_S_TAIL    2
    int state;                  /* used during processing */
    int detached;
    ASN1_OBJECT *type;
    /* content as defined by the type */
    /*
     * all encryption/message digests are applied to the 'contents', leaving
     * out the 'type' field.
     */
    union {
        char *ptr;
        /* NID_pkcs7_data */
        ASN1_OCTET_STRING *data;
        /* NID_pkcs7_signed */
        PKCS7_SIGNED *sign;
        /* NID_pkcs7_enveloped */
        PKCS7_ENVELOPE *enveloped;
        /* NID_pkcs7_signedAndEnveloped */
        PKCS7_SIGN_ENVELOPE *signed_and_enveloped;
        /* NID_pkcs7_digest */
        PKCS7_DIGEST *digest;
        /* NID_pkcs7_encrypted */
        PKCS7_ENCRYPT *encrypted;
        /* Anything else */
        ASN1_TYPE *other;
    } d;
    PKCS7_CTX ctx;
} PKCS7;
SKM_DEFINE_STACK_OF_INTERNAL(PKCS7, PKCS7, PKCS7)
#define sk_PKCS7_num(sk) OPENSSL_sk_num(ossl_check_const_PKCS7_sk_type(sk))
#define sk_PKCS7_value(sk, idx) ((PKCS7 *)OPENSSL_sk_value(ossl_check_const_PKCS7_sk_type(sk), (idx)))
#define sk_PKCS7_new(cmp) ((STACK_OF(PKCS7) *)OPENSSL_sk_new(ossl_check_PKCS7_compfunc_type(cmp)))
#define sk_PKCS7_new_null() ((STACK_OF(PKCS7) *)OPENSSL_sk_new_null())
#define sk_PKCS7_new_reserve(cmp, n) ((STACK_OF(PKCS7) *)OPENSSL_sk_new_reserve(ossl_check_PKCS7_compfunc_type(cmp), (n)))
#define sk_PKCS7_reserve(sk, n) OPENSSL_sk_reserve(ossl_check_PKCS7_sk_type(sk), (n))
#define sk_PKCS7_free(sk) OPENSSL_sk_free(ossl_check_PKCS7_sk_type(sk))
#define sk_PKCS7_zero(sk) OPENSSL_sk_zero(ossl_check_PKCS7_sk_type(sk))
#define sk_PKCS7_delete(sk, i) ((PKCS7 *)OPENSSL_sk_delete(ossl_check_PKCS7_sk_type(sk), (i)))
#define sk_PKCS7_delete_ptr(sk, ptr) ((PKCS7 *)OPENSSL_sk_delete_ptr(ossl_check_PKCS7_sk_type(sk), ossl_check_PKCS7_type(ptr)))
#define sk_PKCS7_push(sk, ptr) OPENSSL_sk_push(ossl_check_PKCS7_sk_type(sk), ossl_check_PKCS7_type(ptr))
#define sk_PKCS7_unshift(sk, ptr) OPENSSL_sk_unshift(ossl_check_PKCS7_sk_type(sk), ossl_check_PKCS7_type(ptr))
#define sk_PKCS7_pop(sk) ((PKCS7 *)OPENSSL_sk_pop(ossl_check_PKCS7_sk_type(sk)))
#define sk_PKCS7_shift(sk) ((PKCS7 *)OPENSSL_sk_shift(ossl_check_PKCS7_sk_type(sk)))
#define sk_PKCS7_pop_free(sk, freefunc) OPENSSL_sk_pop_free(ossl_check_PKCS7_sk_type(sk),ossl_check_PKCS7_freefunc_type(freefunc))
#define sk_PKCS7_insert(sk, ptr, idx) OPENSSL_sk_insert(ossl_check_PKCS7_sk_type(sk), ossl_check_PKCS7_type(ptr), (idx))
#define sk_PKCS7_set(sk, idx, ptr) ((PKCS7 *)OPENSSL_sk_set(ossl_check_PKCS7_sk_type(sk), (idx), ossl_check_PKCS7_type(ptr)))
#define sk_PKCS7_find(sk, ptr) OPENSSL_sk_find(ossl_check_PKCS7_sk_type(sk), ossl_check_PKCS7_type(ptr))
#define sk_PKCS7_find_ex(sk, ptr) OPENSSL_sk_find_ex(ossl_check_PKCS7_sk_type(sk), ossl_check_PKCS7_type(ptr))
#define sk_PKCS7_find_all(sk, ptr, pnum) OPENSSL_sk_find_all(ossl_check_PKCS7_sk_type(sk), ossl_check_PKCS7_type(ptr), pnum)
#define sk_PKCS7_sort(sk) OPENSSL_sk_sort(ossl_check_PKCS7_sk_type(sk))
#define sk_PKCS7_is_sorted(sk) OPENSSL_sk_is_sorted(ossl_check_const_PKCS7_sk_type(sk))
#define sk_PKCS7_dup(sk) ((STACK_OF(PKCS7) *)OPENSSL_sk_dup(ossl_check_const_PKCS7_sk_type(sk)))
#define sk_PKCS7_deep_copy(sk, copyfunc, freefunc) ((STACK_OF(PKCS7) *)OPENSSL_sk_deep_copy(ossl_check_const_PKCS7_sk_type(sk), ossl_check_PKCS7_copyfunc_type(copyfunc), ossl_check_PKCS7_freefunc_type(freefunc)))
#define sk_PKCS7_set_cmp_func(sk, cmp) ((sk_PKCS7_compfunc)OPENSSL_sk_set_cmp_func(ossl_check_PKCS7_sk_type(sk), ossl_check_PKCS7_compfunc_type(cmp)))



# define PKCS7_OP_SET_DETACHED_SIGNATURE 1
# define PKCS7_OP_GET_DETACHED_SIGNATURE 2

# define PKCS7_get_signed_attributes(si) ((si)->auth_attr)
# define PKCS7_get_attributes(si)        ((si)->unauth_attr)

#ifndef OPENSSL_NO_PKCS7_SM2
# define PKCS7_type_is_sm2(a) (OBJ_obj2nid((a)->type) == NID_pkcs7_sm2data \
                || OBJ_obj2nid((a)->type) == NID_pkcs7_sm2signedData \
                || OBJ_obj2nid((a)->type) == NID_pkcs7_sm2envelopedData \
                || OBJ_obj2nid((a)->type) == NID_pkcs7_sm2signedAndEnvelopedData \
                )
# define PKCS7_type_is_signed(a) (OBJ_obj2nid((a)->type) == NID_pkcs7_signed \
                || OBJ_obj2nid((a)->type) == NID_pkcs7_sm2signedData \
                )
# define PKCS7_type_is_encrypted(a) (OBJ_obj2nid((a)->type) == NID_pkcs7_encrypted)
# define PKCS7_type_is_enveloped(a) (OBJ_obj2nid((a)->type) == NID_pkcs7_enveloped \
                || OBJ_obj2nid((a)->type) == NID_pkcs7_sm2envelopedData \
                )
# define PKCS7_type_is_signedAndEnveloped(a) \
                (OBJ_obj2nid((a)->type) == NID_pkcs7_signedAndEnveloped \
                || OBJ_obj2nid((a)->type) == NID_pkcs7_sm2signedAndEnvelopedData \
                )
# define PKCS7_type_is_data(a)   (OBJ_obj2nid((a)->type) == NID_pkcs7_data \
                || OBJ_obj2nid((a)->type) == NID_pkcs7_sm2data \
                )
# define PKCS7_type_is_digest(a)   (OBJ_obj2nid((a)->type) == NID_pkcs7_digest)
#else
# define PKCS7_type_is_signed(a) (OBJ_obj2nid((a)->type) == NID_pkcs7_signed)
# define PKCS7_type_is_encrypted(a) (OBJ_obj2nid((a)->type) == NID_pkcs7_encrypted)
# define PKCS7_type_is_enveloped(a) (OBJ_obj2nid((a)->type) == NID_pkcs7_enveloped)
# define PKCS7_type_is_signedAndEnveloped(a) \
                (OBJ_obj2nid((a)->type) == NID_pkcs7_signedAndEnveloped)
# define PKCS7_type_is_data(a)   (OBJ_obj2nid((a)->type) == NID_pkcs7_data)
# define PKCS7_type_is_digest(a)   (OBJ_obj2nid((a)->type) == NID_pkcs7_digest)
#endif

# define PKCS7_set_detached(p,v) \
                PKCS7_ctrl(p,PKCS7_OP_SET_DETACHED_SIGNATURE,v,NULL)
# define PKCS7_get_detached(p) \
                PKCS7_ctrl(p,PKCS7_OP_GET_DETACHED_SIGNATURE,0,NULL)

# define PKCS7_is_detached(p7) (PKCS7_type_is_signed(p7) && PKCS7_get_detached(p7))

/* S/MIME related flags */

# define PKCS7_TEXT              0x1
# define PKCS7_NOCERTS           0x2
# define PKCS7_NOSIGS            0x4
# define PKCS7_NOCHAIN           0x8
# define PKCS7_NOINTERN          0x10
# define PKCS7_NOVERIFY          0x20
# define PKCS7_DETACHED          0x40
# define PKCS7_BINARY            0x80
# define PKCS7_NOATTR            0x100
# define PKCS7_NOSMIMECAP        0x200
# define PKCS7_NOOLDMIMETYPE     0x400
# define PKCS7_CRLFEOL           0x800
# define PKCS7_STREAM            0x1000
# define PKCS7_NOCRL             0x2000
# define PKCS7_PARTIAL           0x4000
# define PKCS7_REUSE_DIGEST      0x8000
# define PKCS7_NO_DUAL_CONTENT   0x10000
# define PKCS7_NOPADDING         0x20000

/* Flags: for compatibility with older code */

# define SMIME_TEXT      PKCS7_TEXT
# define SMIME_NOCERTS   PKCS7_NOCERTS
# define SMIME_NOSIGS    PKCS7_NOSIGS
# define SMIME_NOCHAIN   PKCS7_NOCHAIN
# define SMIME_NOINTERN  PKCS7_NOINTERN
# define SMIME_NOVERIFY  PKCS7_NOVERIFY
# define SMIME_DETACHED  PKCS7_DETACHED
# define SMIME_BINARY    PKCS7_BINARY
# define SMIME_NOATTR    PKCS7_NOATTR

/* CRLF ASCII canonicalisation */
# define SMIME_ASCIICRLF         0x80000

DECLARE_ASN1_FUNCTIONS(PKCS7_ISSUER_AND_SERIAL)

int PKCS7_ISSUER_AND_SERIAL_digest(PKCS7_ISSUER_AND_SERIAL *data,
                                   const EVP_MD *type, unsigned char *md,
                                   unsigned int *len);
# ifndef OPENSSL_NO_STDIO
PKCS7 *d2i_PKCS7_fp(FILE *fp, PKCS7 **p7);
int i2d_PKCS7_fp(FILE *fp, const PKCS7 *p7);
# endif
DECLARE_ASN1_DUP_FUNCTION(PKCS7)
PKCS7 *d2i_PKCS7_bio(BIO *bp, PKCS7 **p7);
int i2d_PKCS7_bio(BIO *bp, const PKCS7 *p7);
int i2d_PKCS7_bio_stream(BIO *out, PKCS7 *p7, BIO *in, int flags);
int PEM_write_bio_PKCS7_stream(BIO *out, PKCS7 *p7, BIO *in, int flags);

DECLARE_ASN1_FUNCTIONS(PKCS7_SIGNER_INFO)
DECLARE_ASN1_FUNCTIONS(PKCS7_RECIP_INFO)
DECLARE_ASN1_FUNCTIONS(PKCS7_SIGNED)
DECLARE_ASN1_FUNCTIONS(PKCS7_ENC_CONTENT)
DECLARE_ASN1_FUNCTIONS(PKCS7_ENVELOPE)
DECLARE_ASN1_FUNCTIONS(PKCS7_SIGN_ENVELOPE)
DECLARE_ASN1_FUNCTIONS(PKCS7_DIGEST)
DECLARE_ASN1_FUNCTIONS(PKCS7_ENCRYPT)
DECLARE_ASN1_FUNCTIONS(PKCS7)
PKCS7 *PKCS7_new_ex(OSSL_LIB_CTX *libctx, const char *propq);

DECLARE_ASN1_ITEM(PKCS7_ATTR_SIGN)
DECLARE_ASN1_ITEM(PKCS7_ATTR_VERIFY)

DECLARE_ASN1_NDEF_FUNCTION(PKCS7)
DECLARE_ASN1_PRINT_FUNCTION(PKCS7)

long PKCS7_ctrl(PKCS7 *p7, int cmd, long larg, char *parg);

int PKCS7_type_is_other(PKCS7 *p7);
int PKCS7_set_type(PKCS7 *p7, int type);
int PKCS7_set0_type_other(PKCS7 *p7, int type, ASN1_TYPE *other);
int PKCS7_set_content(PKCS7 *p7, PKCS7 *p7_data);
int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO *p7i, X509 *x509, EVP_PKEY *pkey,
                          const EVP_MD *dgst);
int PKCS7_SIGNER_INFO_sign(PKCS7_SIGNER_INFO *si);
int PKCS7_add_signer(PKCS7 *p7, PKCS7_SIGNER_INFO *p7i);
int PKCS7_add_certificate(PKCS7 *p7, X509 *x509);
int PKCS7_add_crl(PKCS7 *p7, X509_CRL *x509);
int PKCS7_content_new(PKCS7 *p7, int nid);
int PKCS7_dataVerify(X509_STORE *cert_store, X509_STORE_CTX *ctx,
                     BIO *bio, PKCS7 *p7, PKCS7_SIGNER_INFO *si);
int PKCS7_signatureVerify(BIO *bio, PKCS7 *p7, PKCS7_SIGNER_INFO *si,
                          X509 *x509);

BIO *PKCS7_dataInit(PKCS7 *p7, BIO *bio);
int PKCS7_dataFinal(PKCS7 *p7, BIO *bio);
BIO *PKCS7_dataDecode(PKCS7 *p7, EVP_PKEY *pkey, BIO *in_bio, X509 *pcert);

PKCS7_SIGNER_INFO *PKCS7_add_signature(PKCS7 *p7, X509 *x509,
                                       EVP_PKEY *pkey, const EVP_MD *dgst);
X509 *PKCS7_cert_from_signer_info(PKCS7 *p7, PKCS7_SIGNER_INFO *si);
int PKCS7_set_digest(PKCS7 *p7, const EVP_MD *md);
STACK_OF(PKCS7_SIGNER_INFO) *PKCS7_get_signer_info(PKCS7 *p7);

PKCS7_RECIP_INFO *PKCS7_add_recipient(PKCS7 *p7, X509 *x509);
void PKCS7_SIGNER_INFO_get0_algs(PKCS7_SIGNER_INFO *si, EVP_PKEY **pk,
                                 X509_ALGOR **pdig, X509_ALGOR **psig);
void PKCS7_RECIP_INFO_get0_alg(PKCS7_RECIP_INFO *ri, X509_ALGOR **penc);
int PKCS7_add_recipient_info(PKCS7 *p7, PKCS7_RECIP_INFO *ri);
int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO *p7i, X509 *x509);
int PKCS7_set_cipher(PKCS7 *p7, const EVP_CIPHER *cipher);
int PKCS7_stream(unsigned char ***boundary, PKCS7 *p7);

PKCS7_ISSUER_AND_SERIAL *PKCS7_get_issuer_and_serial(PKCS7 *p7, int idx);
ASN1_OCTET_STRING *PKCS7_get_octet_string(PKCS7 *p7);
ASN1_OCTET_STRING *PKCS7_digest_from_attributes(STACK_OF(X509_ATTRIBUTE) *sk);
int PKCS7_add_signed_attribute(PKCS7_SIGNER_INFO *p7si, int nid, int type,
                               void *data);
int PKCS7_add_attribute(PKCS7_SIGNER_INFO *p7si, int nid, int atrtype,
                        void *value);
ASN1_TYPE *PKCS7_get_attribute(const PKCS7_SIGNER_INFO *si, int nid);
ASN1_TYPE *PKCS7_get_signed_attribute(const PKCS7_SIGNER_INFO *si, int nid);
int PKCS7_set_signed_attributes(PKCS7_SIGNER_INFO *p7si,
                                STACK_OF(X509_ATTRIBUTE) *sk);
int PKCS7_set_attributes(PKCS7_SIGNER_INFO *p7si,
                         STACK_OF(X509_ATTRIBUTE) *sk);

PKCS7 *PKCS7_sign(X509 *signcert, EVP_PKEY *pkey, STACK_OF(X509) *certs,
                  BIO *data, int flags);
PKCS7 *PKCS7_sign_ex(X509 *signcert, EVP_PKEY *pkey, STACK_OF(X509) *certs,
                     BIO *data, int flags, OSSL_LIB_CTX *libctx,
                     const char *propq);

PKCS7_SIGNER_INFO *PKCS7_sign_add_signer(PKCS7 *p7,
                                         X509 *signcert, EVP_PKEY *pkey,
                                         const EVP_MD *md, int flags);

int PKCS7_final(PKCS7 *p7, BIO *data, int flags);
int PKCS7_verify(PKCS7 *p7, STACK_OF(X509) *certs, X509_STORE *store,
                 BIO *indata, BIO *out, int flags);
STACK_OF(X509) *PKCS7_get0_signers(PKCS7 *p7, STACK_OF(X509) *certs,
                                   int flags);
PKCS7 *PKCS7_encrypt(STACK_OF(X509) *certs, BIO *in, const EVP_CIPHER *cipher,
                     int flags);
PKCS7 *PKCS7_encrypt_ex(STACK_OF(X509) *certs, BIO *in,
                        const EVP_CIPHER *cipher, int flags,
                        OSSL_LIB_CTX *libctx, const char *propq);
int PKCS7_decrypt(PKCS7 *p7, EVP_PKEY *pkey, X509 *cert, BIO *data,
                  int flags);

int PKCS7_add_attrib_smimecap(PKCS7_SIGNER_INFO *si,
                              STACK_OF(X509_ALGOR) *cap);
STACK_OF(X509_ALGOR) *PKCS7_get_smimecap(PKCS7_SIGNER_INFO *si);
int PKCS7_simple_smimecap(STACK_OF(X509_ALGOR) *sk, int nid, int arg);

int PKCS7_add_attrib_content_type(PKCS7_SIGNER_INFO *si, ASN1_OBJECT *coid);
int PKCS7_add0_attrib_signing_time(PKCS7_SIGNER_INFO *si, ASN1_TIME *t);
int PKCS7_add1_attrib_digest(PKCS7_SIGNER_INFO *si,
                             const unsigned char *md, int mdlen);

int SMIME_write_PKCS7(BIO *bio, PKCS7 *p7, BIO *data, int flags);
PKCS7 *SMIME_read_PKCS7_ex(BIO *bio, BIO **bcont, PKCS7 **p7);
PKCS7 *SMIME_read_PKCS7(BIO *bio, BIO **bcont);

BIO *BIO_new_PKCS7(BIO *out, PKCS7 *p7);

#ifndef OPENSSL_NO_PKCS7_SM2
/**
 * @API:
 * PKCS7 *PKCS7_sm2_sign_envelop(X509 *signer, EVP_PKEY *pkey, STACK_OF(X509) *certs,
                                 STACK_OF(X509) *recips, const EVP_CIPHER *cipher,
                                 BIO *indata, int flags);
 * @function: Build a complete PKCS#7 sm2 signedAndEnveloped data
 * @param[in]
 * X509 *signer -- the certificate to sign with
 * EVP_PKEY *pkey -- the corresponding private key
 * STACK_OF(X509) *certs -- an optional additional set of certificates
 * STACK_OF(X509) *recips -- a list of recipient certificates
 * const EVP_CIPHER *cipher -- the symmetric cipher to use
 * BIO *indata -- the content to be enveloped and signed
 * int flags -- an optional set of flags
 * @return PKCS7* PKCS7 struct pointer
 * @see GM/T 0010-2012 SM2 cryptography message syntax specification. Sec. 10
 * @reused API:
 * PKCS7_set_type
 * PKCS7_set_cipher
 * PKCS7_sign_add_signer
 * PKCS7_add_recipient
 * PKCS7_add_certificate
 * PKCS7_final
 */
PKCS7 *PKCS7_sm2_sign_envelop(X509 *signer, EVP_PKEY *pkey, STACK_OF(X509) *certs,
                              STACK_OF(X509) *recips, const EVP_CIPHER *cipher,
                              BIO *indata, int flags);
/**
 * @API:
 * int PKCS7_sm2_decrypt(PKCS7 *p7, EVP_PKEY *pkey, X509 *cert, BIO *data, int flags);
 * @function: PKCS#7 sm2 enveloped or signedAndEnveloped data decryption
 * @param[in]
 * PKCS7 *p7              -- PKCS7 struct pointer
 * EVP_PKEY *pkey         -- the private key for decryption
 * X509 *cert             -- the corresponding recipient certificate
 * int flags              -- an optional set of flags
 * @param[out]
 * BIO *data              -- output data BIO struct pointer
 * @return int: 1 for success; 0 for failure
 * @see GM/T 0010-2012 SM2 cryptography message syntax specification. Sec. 9 and 10
 * @reused API:
 * PKCS7_decrypt
 */
int PKCS7_sm2_decrypt(PKCS7 *p7, EVP_PKEY *pkey, X509 *cert, BIO *data, int flags);
/**
 * @API:
 * int PKCS7_sm2_verify(PKCS7 *p7, STACK_OF(X509) *certs, X509_STORE *store,
                        BIO *indata, BIO *out, int flags);
 * @function: PKCS#7 sm2 signed or signedAndEnveloped data signature verification
 * @param[in]
 * PKCS7 *p7              -- PKCS7 struct pointer
 * STACK_OF(X509) *certs  -- a set of signer certificates
 * EVP_PKEY *pkey         -- the private key for decryption
 * X509 *cert             -- the corresponding recipient certificate
 * int flags              -- an optional set of flags
 * @param[out]
 * BIO *data              -- output data BIO struct pointer
 * @return int: 1 for success; 0 for failure
 * @see GM/T 0010-2012 SM2 cryptography message syntax specification. Sec. 8 and 10
 * @reused API:
 * PKCS7_get0_signers
 * PKCS7_get_signer_info
 * PKCS7_signatureVerify
 */
int PKCS7_sm2_verify(PKCS7 *p7, STACK_OF(X509) *certs, X509_STORE *store,
                     BIO *indata, BIO *out, int flags);
/**
 * @API:
 * int PKCS7_sm2_decrypt_verify(PKCS7 *p7, X509 *recip, EVP_PKEY *recipkey, STACK_OF(X509) *certs, 
                                X509_STORE *store, BIO *out, int flags);
 * @function: PKCS#7 sm2 signedAndEnveloped data decryption and signature verification
 * @param[in]
 * PKCS7 *p7              -- PKCS7 struct pointer
 * X509 *recip            -- the recipient certificate
 * EVP_PKEY *recipkey     -- the corresponding private key for decryption
 * STACK_OF(X509) *certs  -- a set of signer certificates
 * X509_STORE *store      --  the trusted certificate store to use for chain verification
 * int flags              -- an optional set of flags
 * @param[out]
 * BIO *out               -- output data BIO struct pointer
 * @return int: 1 for success; 0 for failure
 * @see GM/T 0010-2012 SM2 cryptography message syntax specification. Sec. 8 and 10
 * @reused API:
 * PKCS7_sm2_decrypt
 * PKCS7_sm2_verify
 */
int PKCS7_sm2_decrypt_verify(PKCS7 *p7, X509 *recip, EVP_PKEY *recipkey, STACK_OF(X509) *certs, 
                             X509_STORE *store, BIO *out, int flags);
/**
 * @API:
 * int PKCS7_sm2_dataFinal(PKCS7 *p7, BIO *bio, BIO *data);
 * @function: PKCS#7 sm2 signed, enveloped and signedAndEnveloped data signing and encrypting
 * @param[in]
 * PKCS7 *p7              -- PKCS7 struct pointer
 * BIO *bio               -- BIO chain
 * BIO *data              -- input data BIO struct pointer
 * @param[out]
 * BIO *out               -- output data BIO struct pointer
 * @return int: 1 for success; 0 for failure
 * @see GM/T 0010-2012 SM2 cryptography message syntax specification. Sec. 8, 9 and 10
 * @note:
 * Why do we create a new sm2 data final API?
 * 
 * The process in the native OpenSSL API PKCS7_final calls PKCS7_dataInit and PKCS7_dataFinal 
 * in sequence. PKCS7_dataInit constructs a digest BIO. Each digest algorithm corresponds to only 
 * one digest BIO. PKCS7_dataFinal obtains the digest value in plaintext. Because the z value of 
 * SM2 Signature needs to be calculated and it is different for each signer.
 * 
 * The interface is added to adapt to the multi-sm2-signer scenario.
 */
int PKCS7_sm2_dataFinal(PKCS7 *p7, BIO *bio, BIO *data);
#endif

# ifdef  __cplusplus
}
# endif
#endif
