GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcrypto/asn1/x_req.c Lines: 11 17 64.7 %
Date: 2017-11-13 Branches: 3 4 75.0 %

Line Branch Exec Source
1
/* $OpenBSD: x_req.c,v 1.15 2015/02/11 04:00:39 jsing Exp $ */
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
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
83
rinf_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, void *exarg)
84
{
85
404
	X509_REQ_INFO *rinf = (X509_REQ_INFO *)*pval;
86
87
202
	if (operation == ASN1_OP_NEW_POST) {
88
28
		rinf->attributes = sk_X509_ATTRIBUTE_new_null();
89
28
		if (!rinf->attributes)
90
			return 0;
91
	}
92
202
	return 1;
93
202
}
94
95
static const ASN1_AUX X509_REQ_INFO_aux = {
96
	.flags = ASN1_AFLG_ENCODING,
97
	.asn1_cb = rinf_cb,
98
	.enc_offset = offsetof(X509_REQ_INFO, enc),
99
};
100
static const ASN1_TEMPLATE X509_REQ_INFO_seq_tt[] = {
101
	{
102
		.offset = offsetof(X509_REQ_INFO, version),
103
		.field_name = "version",
104
		.item = &ASN1_INTEGER_it,
105
	},
106
	{
107
		.offset = offsetof(X509_REQ_INFO, subject),
108
		.field_name = "subject",
109
		.item = &X509_NAME_it,
110
	},
111
	{
112
		.offset = offsetof(X509_REQ_INFO, pubkey),
113
		.field_name = "pubkey",
114
		.item = &X509_PUBKEY_it,
115
	},
116
	/* This isn't really OPTIONAL but it gets round invalid
117
	 * encodings
118
	 */
119
	{
120
		.flags = ASN1_TFLG_IMPLICIT | ASN1_TFLG_SET_OF | ASN1_TFLG_OPTIONAL,
121
		.offset = offsetof(X509_REQ_INFO, attributes),
122
		.field_name = "attributes",
123
		.item = &X509_ATTRIBUTE_it,
124
	},
125
};
126
127
const ASN1_ITEM X509_REQ_INFO_it = {
128
	.itype = ASN1_ITYPE_SEQUENCE,
129
	.utype = V_ASN1_SEQUENCE,
130
	.templates = X509_REQ_INFO_seq_tt,
131
	.tcount = sizeof(X509_REQ_INFO_seq_tt) / sizeof(ASN1_TEMPLATE),
132
	.funcs = &X509_REQ_INFO_aux,
133
	.size = sizeof(X509_REQ_INFO),
134
	.sname = "X509_REQ_INFO",
135
};
136
137
138
X509_REQ_INFO *
139
d2i_X509_REQ_INFO(X509_REQ_INFO **a, const unsigned char **in, long len)
140
{
141
	return (X509_REQ_INFO *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
142
	    &X509_REQ_INFO_it);
143
}
144
145
int
146
i2d_X509_REQ_INFO(X509_REQ_INFO *a, unsigned char **out)
147
{
148
	return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_REQ_INFO_it);
149
}
150
151
X509_REQ_INFO *
152
X509_REQ_INFO_new(void)
153
{
154
	return (X509_REQ_INFO *)ASN1_item_new(&X509_REQ_INFO_it);
155
}
156
157
void
158
X509_REQ_INFO_free(X509_REQ_INFO *a)
159
{
160
	ASN1_item_free((ASN1_VALUE *)a, &X509_REQ_INFO_it);
161
}
162
163
static const ASN1_AUX X509_REQ_aux = {
164
	.app_data = NULL,
165
	.flags = ASN1_AFLG_REFCOUNT,
166
	.ref_offset = offsetof(X509_REQ, references),
167
	.ref_lock = CRYPTO_LOCK_X509_REQ,
168
};
169
static const ASN1_TEMPLATE X509_REQ_seq_tt[] = {
170
	{
171
		.offset = offsetof(X509_REQ, req_info),
172
		.field_name = "req_info",
173
		.item = &X509_REQ_INFO_it,
174
	},
175
	{
176
		.offset = offsetof(X509_REQ, sig_alg),
177
		.field_name = "sig_alg",
178
		.item = &X509_ALGOR_it,
179
	},
180
	{
181
		.offset = offsetof(X509_REQ, signature),
182
		.field_name = "signature",
183
		.item = &ASN1_BIT_STRING_it,
184
	},
185
};
186
187
const ASN1_ITEM X509_REQ_it = {
188
	.itype = ASN1_ITYPE_SEQUENCE,
189
	.utype = V_ASN1_SEQUENCE,
190
	.templates = X509_REQ_seq_tt,
191
	.tcount = sizeof(X509_REQ_seq_tt) / sizeof(ASN1_TEMPLATE),
192
	.funcs = &X509_REQ_aux,
193
	.size = sizeof(X509_REQ),
194
	.sname = "X509_REQ",
195
};
196
197
198
X509_REQ *
199
d2i_X509_REQ(X509_REQ **a, const unsigned char **in, long len)
200
{
201
20
	return (X509_REQ *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
202
	    &X509_REQ_it);
203
}
204
205
int
206
i2d_X509_REQ(X509_REQ *a, unsigned char **out)
207
{
208
40
	return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_REQ_it);
209
}
210
211
X509_REQ *
212
X509_REQ_new(void)
213
{
214
36
	return (X509_REQ *)ASN1_item_new(&X509_REQ_it);
215
}
216
217
void
218
X509_REQ_free(X509_REQ *a)
219
{
220
132
	ASN1_item_free((ASN1_VALUE *)a, &X509_REQ_it);
221
66
}
222
223
X509_REQ *
224
X509_REQ_dup(X509_REQ *x)
225
{
226
	return ASN1_item_dup(&X509_REQ_it, x);
227
}