Rework build: add special cases for AIX
[openssl.git] / crypto / pkcs7 / pk7_asn1.c
1 /*
2  * Copyright 2000-2016 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/asn1t.h>
13 #include <openssl/pkcs7.h>
14 #include <openssl/x509.h>
15
16 /* PKCS#7 ASN1 module */
17
18 /* This is the ANY DEFINED BY table for the top level PKCS#7 structure */
19
20 ASN1_ADB_TEMPLATE(p7default) = ASN1_EXP_OPT(PKCS7, d.other, ASN1_ANY, 0);
21
22 ASN1_ADB(PKCS7) = {
23         ADB_ENTRY(NID_pkcs7_data, ASN1_NDEF_EXP_OPT(PKCS7, d.data, ASN1_OCTET_STRING_NDEF, 0)),
24         ADB_ENTRY(NID_pkcs7_signed, ASN1_NDEF_EXP_OPT(PKCS7, d.sign, PKCS7_SIGNED, 0)),
25         ADB_ENTRY(NID_pkcs7_enveloped, ASN1_NDEF_EXP_OPT(PKCS7, d.enveloped, PKCS7_ENVELOPE, 0)),
26         ADB_ENTRY(NID_pkcs7_signedAndEnveloped, ASN1_NDEF_EXP_OPT(PKCS7, d.signed_and_enveloped, PKCS7_SIGN_ENVELOPE, 0)),
27         ADB_ENTRY(NID_pkcs7_digest, ASN1_NDEF_EXP_OPT(PKCS7, d.digest, PKCS7_DIGEST, 0)),
28         ADB_ENTRY(NID_pkcs7_encrypted, ASN1_NDEF_EXP_OPT(PKCS7, d.encrypted, PKCS7_ENCRYPT, 0))
29 } ASN1_ADB_END(PKCS7, 0, type, 0, &p7default_tt, NULL);
30
31 /* PKCS#7 streaming support */
32 static int pk7_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
33                   void *exarg)
34 {
35     ASN1_STREAM_ARG *sarg = exarg;
36     PKCS7 **pp7 = (PKCS7 **)pval;
37
38     switch (operation) {
39
40     case ASN1_OP_STREAM_PRE:
41         if (PKCS7_stream(&sarg->boundary, *pp7) <= 0)
42             return 0;
43         /* fall thru */
44     case ASN1_OP_DETACHED_PRE:
45         sarg->ndef_bio = PKCS7_dataInit(*pp7, sarg->out);
46         if (!sarg->ndef_bio)
47             return 0;
48         break;
49
50     case ASN1_OP_STREAM_POST:
51     case ASN1_OP_DETACHED_POST:
52         if (PKCS7_dataFinal(*pp7, sarg->ndef_bio) <= 0)
53             return 0;
54         break;
55
56     }
57     return 1;
58 }
59
60 ASN1_NDEF_SEQUENCE_cb(PKCS7, pk7_cb) = {
61         ASN1_SIMPLE(PKCS7, type, ASN1_OBJECT),
62         ASN1_ADB_OBJECT(PKCS7)
63 }ASN1_NDEF_SEQUENCE_END_cb(PKCS7, PKCS7)
64
65 IMPLEMENT_ASN1_FUNCTIONS(PKCS7)
66
67 IMPLEMENT_ASN1_NDEF_FUNCTION(PKCS7)
68
69 IMPLEMENT_ASN1_DUP_FUNCTION(PKCS7)
70
71 ASN1_NDEF_SEQUENCE(PKCS7_SIGNED) = {
72         ASN1_SIMPLE(PKCS7_SIGNED, version, ASN1_INTEGER),
73         ASN1_SET_OF(PKCS7_SIGNED, md_algs, X509_ALGOR),
74         ASN1_SIMPLE(PKCS7_SIGNED, contents, PKCS7),
75         ASN1_IMP_SEQUENCE_OF_OPT(PKCS7_SIGNED, cert, X509, 0),
76         ASN1_IMP_SET_OF_OPT(PKCS7_SIGNED, crl, X509_CRL, 1),
77         ASN1_SET_OF(PKCS7_SIGNED, signer_info, PKCS7_SIGNER_INFO)
78 } ASN1_NDEF_SEQUENCE_END(PKCS7_SIGNED)
79
80 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGNED)
81
82 /* Minor tweak to operation: free up EVP_PKEY */
83 static int si_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
84                  void *exarg)
85 {
86     if (operation == ASN1_OP_FREE_POST) {
87         PKCS7_SIGNER_INFO *si = (PKCS7_SIGNER_INFO *)*pval;
88         EVP_PKEY_free(si->pkey);
89     }
90     return 1;
91 }
92
93 ASN1_SEQUENCE_cb(PKCS7_SIGNER_INFO, si_cb) = {
94         ASN1_SIMPLE(PKCS7_SIGNER_INFO, version, ASN1_INTEGER),
95         ASN1_SIMPLE(PKCS7_SIGNER_INFO, issuer_and_serial, PKCS7_ISSUER_AND_SERIAL),
96         ASN1_SIMPLE(PKCS7_SIGNER_INFO, digest_alg, X509_ALGOR),
97         /* NB this should be a SET OF but we use a SEQUENCE OF so the
98          * original order * is retained when the structure is reencoded.
99          * Since the attributes are implicitly tagged this will not affect
100          * the encoding.
101          */
102         ASN1_IMP_SEQUENCE_OF_OPT(PKCS7_SIGNER_INFO, auth_attr, X509_ATTRIBUTE, 0),
103         ASN1_SIMPLE(PKCS7_SIGNER_INFO, digest_enc_alg, X509_ALGOR),
104         ASN1_SIMPLE(PKCS7_SIGNER_INFO, enc_digest, ASN1_OCTET_STRING),
105         ASN1_IMP_SET_OF_OPT(PKCS7_SIGNER_INFO, unauth_attr, X509_ATTRIBUTE, 1)
106 } ASN1_SEQUENCE_END_cb(PKCS7_SIGNER_INFO, PKCS7_SIGNER_INFO)
107
108 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGNER_INFO)
109
110 ASN1_SEQUENCE(PKCS7_ISSUER_AND_SERIAL) = {
111         ASN1_SIMPLE(PKCS7_ISSUER_AND_SERIAL, issuer, X509_NAME),
112         ASN1_SIMPLE(PKCS7_ISSUER_AND_SERIAL, serial, ASN1_INTEGER)
113 } ASN1_SEQUENCE_END(PKCS7_ISSUER_AND_SERIAL)
114
115 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ISSUER_AND_SERIAL)
116
117 ASN1_NDEF_SEQUENCE(PKCS7_ENVELOPE) = {
118         ASN1_SIMPLE(PKCS7_ENVELOPE, version, ASN1_INTEGER),
119         ASN1_SET_OF(PKCS7_ENVELOPE, recipientinfo, PKCS7_RECIP_INFO),
120         ASN1_SIMPLE(PKCS7_ENVELOPE, enc_data, PKCS7_ENC_CONTENT)
121 } ASN1_NDEF_SEQUENCE_END(PKCS7_ENVELOPE)
122
123 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENVELOPE)
124
125 /* Minor tweak to operation: free up X509 */
126 static int ri_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
127                  void *exarg)
128 {
129     if (operation == ASN1_OP_FREE_POST) {
130         PKCS7_RECIP_INFO *ri = (PKCS7_RECIP_INFO *)*pval;
131         X509_free(ri->cert);
132     }
133     return 1;
134 }
135
136 ASN1_SEQUENCE_cb(PKCS7_RECIP_INFO, ri_cb) = {
137         ASN1_SIMPLE(PKCS7_RECIP_INFO, version, ASN1_INTEGER),
138         ASN1_SIMPLE(PKCS7_RECIP_INFO, issuer_and_serial, PKCS7_ISSUER_AND_SERIAL),
139         ASN1_SIMPLE(PKCS7_RECIP_INFO, key_enc_algor, X509_ALGOR),
140         ASN1_SIMPLE(PKCS7_RECIP_INFO, enc_key, ASN1_OCTET_STRING)
141 } ASN1_SEQUENCE_END_cb(PKCS7_RECIP_INFO, PKCS7_RECIP_INFO)
142
143 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_RECIP_INFO)
144
145 ASN1_NDEF_SEQUENCE(PKCS7_ENC_CONTENT) = {
146         ASN1_SIMPLE(PKCS7_ENC_CONTENT, content_type, ASN1_OBJECT),
147         ASN1_SIMPLE(PKCS7_ENC_CONTENT, algorithm, X509_ALGOR),
148         ASN1_IMP_OPT(PKCS7_ENC_CONTENT, enc_data, ASN1_OCTET_STRING_NDEF, 0)
149 } ASN1_NDEF_SEQUENCE_END(PKCS7_ENC_CONTENT)
150
151 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENC_CONTENT)
152
153 ASN1_NDEF_SEQUENCE(PKCS7_SIGN_ENVELOPE) = {
154         ASN1_SIMPLE(PKCS7_SIGN_ENVELOPE, version, ASN1_INTEGER),
155         ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, recipientinfo, PKCS7_RECIP_INFO),
156         ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, md_algs, X509_ALGOR),
157         ASN1_SIMPLE(PKCS7_SIGN_ENVELOPE, enc_data, PKCS7_ENC_CONTENT),
158         ASN1_IMP_SET_OF_OPT(PKCS7_SIGN_ENVELOPE, cert, X509, 0),
159         ASN1_IMP_SET_OF_OPT(PKCS7_SIGN_ENVELOPE, crl, X509_CRL, 1),
160         ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, signer_info, PKCS7_SIGNER_INFO)
161 } ASN1_NDEF_SEQUENCE_END(PKCS7_SIGN_ENVELOPE)
162
163 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGN_ENVELOPE)
164
165 ASN1_NDEF_SEQUENCE(PKCS7_ENCRYPT) = {
166         ASN1_SIMPLE(PKCS7_ENCRYPT, version, ASN1_INTEGER),
167         ASN1_SIMPLE(PKCS7_ENCRYPT, enc_data, PKCS7_ENC_CONTENT)
168 } ASN1_NDEF_SEQUENCE_END(PKCS7_ENCRYPT)
169
170 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENCRYPT)
171
172 ASN1_NDEF_SEQUENCE(PKCS7_DIGEST) = {
173         ASN1_SIMPLE(PKCS7_DIGEST, version, ASN1_INTEGER),
174         ASN1_SIMPLE(PKCS7_DIGEST, md, X509_ALGOR),
175         ASN1_SIMPLE(PKCS7_DIGEST, contents, PKCS7),
176         ASN1_SIMPLE(PKCS7_DIGEST, digest, ASN1_OCTET_STRING)
177 } ASN1_NDEF_SEQUENCE_END(PKCS7_DIGEST)
178
179 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_DIGEST)
180
181 /* Specials for authenticated attributes */
182
183 /*
184  * When signing attributes we want to reorder them to match the sorted
185  * encoding.
186  */
187
188 ASN1_ITEM_TEMPLATE(PKCS7_ATTR_SIGN) =
189         ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_ORDER, 0, PKCS7_ATTRIBUTES, X509_ATTRIBUTE)
190 ASN1_ITEM_TEMPLATE_END(PKCS7_ATTR_SIGN)
191
192 /*
193  * When verifying attributes we need to use the received order. So we use
194  * SEQUENCE OF and tag it to SET OF
195  */
196
197 ASN1_ITEM_TEMPLATE(PKCS7_ATTR_VERIFY) =
198         ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_IMPTAG | ASN1_TFLG_UNIVERSAL,
199                                 V_ASN1_SET, PKCS7_ATTRIBUTES, X509_ATTRIBUTE)
200 ASN1_ITEM_TEMPLATE_END(PKCS7_ATTR_VERIFY)
201
202 IMPLEMENT_ASN1_PRINT_FUNCTION(PKCS7)