1 /*
2 * Copyright 1999-2024 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 #include <stdio.h>
11 #include "internal/cryptlib.h"
12 #include <openssl/x509.h>
13 #include <openssl/asn1.h>
14 #include "pk7_local.h"
15
16 /* PKCS#7 wrappers round generalised stream and MIME routines */
17
i2d_PKCS7_bio_stream(BIO * out,PKCS7 * p7,BIO * in,int flags)18 int i2d_PKCS7_bio_stream(BIO *out, PKCS7 *p7, BIO *in, int flags)
19 {
20 return i2d_ASN1_bio_stream(out, (ASN1_VALUE *)p7, in, flags,
21 ASN1_ITEM_rptr(PKCS7));
22 }
23
PEM_write_bio_PKCS7_stream(BIO * out,PKCS7 * p7,BIO * in,int flags)24 int PEM_write_bio_PKCS7_stream(BIO *out, PKCS7 *p7, BIO *in, int flags)
25 {
26 return PEM_write_bio_ASN1_stream(out, (ASN1_VALUE *)p7, in, flags,
27 "PKCS7", ASN1_ITEM_rptr(PKCS7));
28 }
29
SMIME_write_PKCS7(BIO * bio,PKCS7 * p7,BIO * data,int flags)30 int SMIME_write_PKCS7(BIO *bio, PKCS7 *p7, BIO *data, int flags)
31 {
32 STACK_OF(X509_ALGOR) *mdalgs;
33 int ctype_nid = OBJ_obj2nid(p7->type);
34 const PKCS7_CTX *ctx = ossl_pkcs7_get0_ctx(p7);
35
36 if (ctype_nid == NID_pkcs7_signed) {
37 if (p7->d.sign == NULL)
38 return 0;
39 mdalgs = p7->d.sign->md_algs;
40 } else {
41 mdalgs = NULL;
42 }
43
44 flags ^= SMIME_OLDMIME;
45
46 return SMIME_write_ASN1_ex(bio, (ASN1_VALUE *)p7, data, flags, ctype_nid,
47 NID_undef, mdalgs, ASN1_ITEM_rptr(PKCS7),
48 ossl_pkcs7_ctx_get0_libctx(ctx),
49 ossl_pkcs7_ctx_get0_propq(ctx));
50 }
51
SMIME_read_PKCS7_ex(BIO * bio,BIO ** bcont,PKCS7 ** p7)52 PKCS7 *SMIME_read_PKCS7_ex(BIO *bio, BIO **bcont, PKCS7 **p7)
53 {
54 PKCS7 *ret;
55 OSSL_LIB_CTX *libctx = NULL;
56 const char *propq = NULL;
57
58 if (p7 != NULL && *p7 != NULL) {
59 libctx = (*p7)->ctx.libctx;
60 propq = (*p7)->ctx.propq;
61 }
62
63 ret = (PKCS7 *)SMIME_read_ASN1_ex(bio, 0, bcont, ASN1_ITEM_rptr(PKCS7),
64 (ASN1_VALUE **)p7, libctx, propq);
65 if (ret != NULL)
66 ossl_pkcs7_resolve_libctx(ret);
67 return ret;
68 }
69
SMIME_read_PKCS7(BIO * bio,BIO ** bcont)70 PKCS7 *SMIME_read_PKCS7(BIO *bio, BIO **bcont)
71 {
72 return SMIME_read_PKCS7_ex(bio, bcont, NULL);
73 }
74