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1 /* crypto/asn1/x_req.c */ | |
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | |
3 * All rights reserved. | |
4 * | |
5 * This package is an SSL implementation written | |
6 * by Eric Young (eay@cryptsoft.com). | |
7 * The implementation was written so as to conform with Netscapes SSL. | |
8 * | |
9 * This library is free for commercial and non-commercial use as long as | |
10 * the following conditions are aheared to. The following conditions | |
11 * apply to all code found in this distribution, be it the RC4, RSA, | |
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
13 * included with this distribution is covered by the same copyright terms | |
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
15 * | |
16 * Copyright remains Eric Young's, and as such any Copyright notices in | |
17 * the code are not to be removed. | |
18 * If this package is used in a product, Eric Young should be given attribution | |
19 * as the author of the parts of the library used. | |
20 * This can be in the form of a textual message at program startup or | |
21 * in documentation (online or textual) provided with the package. | |
22 * | |
23 * Redistribution and use in source and binary forms, with or without | |
24 * modification, are permitted provided that the following conditions | |
25 * are met: | |
26 * 1. Redistributions of source code must retain the copyright | |
27 * notice, this list of conditions and the following disclaimer. | |
28 * 2. Redistributions in binary form must reproduce the above copyright | |
29 * notice, this list of conditions and the following disclaimer in the | |
30 * documentation and/or other materials provided with the distribution. | |
31 * 3. All advertising materials mentioning features or use of this software | |
32 * must display the following acknowledgement: | |
33 * "This product includes cryptographic software written by | |
34 * Eric Young (eay@cryptsoft.com)" | |
35 * The word 'cryptographic' can be left out if the rouines from the library | |
36 * being used are not cryptographic related :-). | |
37 * 4. If you include any Windows specific code (or a derivative thereof) from | |
38 * the apps directory (application code) you must include an acknowledgement: | |
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
40 * | |
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | |
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
51 * SUCH DAMAGE. | |
52 * | |
53 * The licence and distribution terms for any publically available version or | |
54 * derivative of this code cannot be changed. i.e. this code cannot simply be | |
55 * copied and put under another distribution licence | |
56 * [including the GNU Public Licence.] | |
57 */ | |
58 | |
59 #include <stdio.h> | |
60 #include "cryptlib.h" | |
61 #include <openssl/asn1t.h> | |
62 #include <openssl/x509.h> | |
63 | |
64 /* X509_REQ_INFO is handled in an unusual way to get round | |
65 * invalid encodings. Some broken certificate requests don't | |
66 * encode the attributes field if it is empty. This is in | |
67 * violation of PKCS#10 but we need to tolerate it. We do | |
68 * this by making the attributes field OPTIONAL then using | |
69 * the callback to initialise it to an empty STACK. | |
70 * | |
71 * This means that the field will be correctly encoded unless | |
72 * we NULL out the field. | |
73 * | |
74 * As a result we no longer need the req_kludge field because | |
75 * the information is now contained in the attributes field: | |
76 * 1. If it is NULL then it's the invalid omission. | |
77 * 2. If it is empty it is the correct encoding. | |
78 * 3. If it is not empty then some attributes are present. | |
79 * | |
80 */ | |
81 | |
82 static int rinf_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, | |
83 void *exarg) | |
84 { | |
85 X509_REQ_INFO *rinf = (X509_REQ_INFO *)*pval; | |
86 | |
87 if(operation == ASN1_OP_NEW_POST) { | |
88 rinf->attributes = sk_X509_ATTRIBUTE_new_null(); | |
89 if(!rinf->attributes) return 0; | |
90 } | |
91 return 1; | |
92 } | |
93 | |
94 ASN1_SEQUENCE_enc(X509_REQ_INFO, enc, rinf_cb) = { | |
95 ASN1_SIMPLE(X509_REQ_INFO, version, ASN1_INTEGER), | |
96 ASN1_SIMPLE(X509_REQ_INFO, subject, X509_NAME), | |
97 ASN1_SIMPLE(X509_REQ_INFO, pubkey, X509_PUBKEY), | |
98 /* This isn't really OPTIONAL but it gets round invalid | |
99 * encodings | |
100 */ | |
101 ASN1_IMP_SET_OF_OPT(X509_REQ_INFO, attributes, X509_ATTRIBUTE, 0) | |
102 } ASN1_SEQUENCE_END_enc(X509_REQ_INFO, X509_REQ_INFO) | |
103 | |
104 IMPLEMENT_ASN1_FUNCTIONS(X509_REQ_INFO) | |
105 | |
106 ASN1_SEQUENCE_ref(X509_REQ, 0, CRYPTO_LOCK_X509_REQ) = { | |
107 ASN1_SIMPLE(X509_REQ, req_info, X509_REQ_INFO), | |
108 ASN1_SIMPLE(X509_REQ, sig_alg, X509_ALGOR), | |
109 ASN1_SIMPLE(X509_REQ, signature, ASN1_BIT_STRING) | |
110 } ASN1_SEQUENCE_END_ref(X509_REQ, X509_REQ) | |
111 | |
112 IMPLEMENT_ASN1_FUNCTIONS(X509_REQ) | |
113 IMPLEMENT_ASN1_DUP_FUNCTION(X509_REQ) | |
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