summaryrefslogtreecommitdiff
path: root/src/lib/libcrypto/asn1/bio_ndef.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/lib/libcrypto/asn1/bio_ndef.c')
-rw-r--r--src/lib/libcrypto/asn1/bio_ndef.c243
1 files changed, 0 insertions, 243 deletions
diff --git a/src/lib/libcrypto/asn1/bio_ndef.c b/src/lib/libcrypto/asn1/bio_ndef.c
deleted file mode 100644
index 1a23c27d04..0000000000
--- a/src/lib/libcrypto/asn1/bio_ndef.c
+++ /dev/null
@@ -1,243 +0,0 @@
1/* $OpenBSD: bio_ndef.c,v 1.9 2014/07/25 06:05:32 doug Exp $ */
2/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project.
4 */
5/* ====================================================================
6 * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
52 *
53 */
54
55#include <openssl/asn1.h>
56#include <openssl/asn1t.h>
57#include <openssl/bio.h>
58#include <openssl/err.h>
59
60#include <stdio.h>
61
62/* Experimental NDEF ASN1 BIO support routines */
63
64/* The usage is quite simple, initialize an ASN1 structure,
65 * get a BIO from it then any data written through the BIO
66 * will end up translated to approptiate format on the fly.
67 * The data is streamed out and does *not* need to be
68 * all held in memory at once.
69 *
70 * When the BIO is flushed the output is finalized and any
71 * signatures etc written out.
72 *
73 * The BIO is a 'proper' BIO and can handle non blocking I/O
74 * correctly.
75 *
76 * The usage is simple. The implementation is *not*...
77 */
78
79/* BIO support data stored in the ASN1 BIO ex_arg */
80
81typedef struct ndef_aux_st {
82 /* ASN1 structure this BIO refers to */
83 ASN1_VALUE *val;
84 const ASN1_ITEM *it;
85 /* Top of the BIO chain */
86 BIO *ndef_bio;
87 /* Output BIO */
88 BIO *out;
89 /* Boundary where content is inserted */
90 unsigned char **boundary;
91 /* DER buffer start */
92 unsigned char *derbuf;
93} NDEF_SUPPORT;
94
95static int ndef_prefix(BIO *b, unsigned char **pbuf, int *plen, void *parg);
96static int ndef_prefix_free(BIO *b, unsigned char **pbuf, int *plen, void *parg);
97static int ndef_suffix(BIO *b, unsigned char **pbuf, int *plen, void *parg);
98static int ndef_suffix_free(BIO *b, unsigned char **pbuf, int *plen, void *parg);
99
100BIO *
101BIO_new_NDEF(BIO *out, ASN1_VALUE *val, const ASN1_ITEM *it)
102{
103 NDEF_SUPPORT *ndef_aux = NULL;
104 BIO *asn_bio = NULL;
105 const ASN1_AUX *aux = it->funcs;
106 ASN1_STREAM_ARG sarg;
107
108 if (!aux || !aux->asn1_cb) {
109 ASN1err(ASN1_F_BIO_NEW_NDEF, ASN1_R_STREAMING_NOT_SUPPORTED);
110 return NULL;
111 }
112 ndef_aux = malloc(sizeof(NDEF_SUPPORT));
113 asn_bio = BIO_new(BIO_f_asn1());
114
115 /* ASN1 bio needs to be next to output BIO */
116
117 out = BIO_push(asn_bio, out);
118
119 if (!ndef_aux || !asn_bio || !out)
120 goto err;
121
122 BIO_asn1_set_prefix(asn_bio, ndef_prefix, ndef_prefix_free);
123 BIO_asn1_set_suffix(asn_bio, ndef_suffix, ndef_suffix_free);
124
125 /* Now let callback prepend any digest, cipher etc BIOs
126 * ASN1 structure needs.
127 */
128
129 sarg.out = out;
130 sarg.ndef_bio = NULL;
131 sarg.boundary = NULL;
132
133 if (aux->asn1_cb(ASN1_OP_STREAM_PRE, &val, it, &sarg) <= 0)
134 goto err;
135
136 ndef_aux->val = val;
137 ndef_aux->it = it;
138 ndef_aux->ndef_bio = sarg.ndef_bio;
139 ndef_aux->boundary = sarg.boundary;
140 ndef_aux->out = out;
141
142 BIO_ctrl(asn_bio, BIO_C_SET_EX_ARG, 0, ndef_aux);
143
144 return sarg.ndef_bio;
145
146err:
147 BIO_free(asn_bio);
148 free(ndef_aux);
149 return NULL;
150}
151
152static int
153ndef_prefix(BIO *b, unsigned char **pbuf, int *plen, void *parg)
154{
155 NDEF_SUPPORT *ndef_aux;
156 unsigned char *p;
157 int derlen;
158
159 if (!parg)
160 return 0;
161
162 ndef_aux = *(NDEF_SUPPORT **)parg;
163
164 derlen = ASN1_item_ndef_i2d(ndef_aux->val, NULL, ndef_aux->it);
165 p = malloc(derlen);
166 ndef_aux->derbuf = p;
167 *pbuf = p;
168 derlen = ASN1_item_ndef_i2d(ndef_aux->val, &p, ndef_aux->it);
169
170 if (!*ndef_aux->boundary)
171 return 0;
172
173 *plen = *ndef_aux->boundary - *pbuf;
174
175 return 1;
176}
177
178static int
179ndef_prefix_free(BIO *b, unsigned char **pbuf, int *plen, void *parg)
180{
181 NDEF_SUPPORT *ndef_aux;
182
183 if (!parg)
184 return 0;
185
186 ndef_aux = *(NDEF_SUPPORT **)parg;
187
188 free(ndef_aux->derbuf);
189
190 ndef_aux->derbuf = NULL;
191 *pbuf = NULL;
192 *plen = 0;
193 return 1;
194}
195
196static int
197ndef_suffix_free(BIO *b, unsigned char **pbuf, int *plen, void *parg)
198{
199 NDEF_SUPPORT **pndef_aux = (NDEF_SUPPORT **)parg;
200 if (!ndef_prefix_free(b, pbuf, plen, parg))
201 return 0;
202 free(*pndef_aux);
203 *pndef_aux = NULL;
204 return 1;
205}
206
207static int
208ndef_suffix(BIO *b, unsigned char **pbuf, int *plen, void *parg)
209{
210 NDEF_SUPPORT *ndef_aux;
211 unsigned char *p;
212 int derlen;
213 const ASN1_AUX *aux;
214 ASN1_STREAM_ARG sarg;
215
216 if (!parg)
217 return 0;
218
219 ndef_aux = *(NDEF_SUPPORT **)parg;
220
221 aux = ndef_aux->it->funcs;
222
223 /* Finalize structures */
224 sarg.ndef_bio = ndef_aux->ndef_bio;
225 sarg.out = ndef_aux->out;
226 sarg.boundary = ndef_aux->boundary;
227 if (aux->asn1_cb(ASN1_OP_STREAM_POST,
228 &ndef_aux->val, ndef_aux->it, &sarg) <= 0)
229 return 0;
230
231 derlen = ASN1_item_ndef_i2d(ndef_aux->val, NULL, ndef_aux->it);
232 p = malloc(derlen);
233 ndef_aux->derbuf = p;
234 *pbuf = p;
235 derlen = ASN1_item_ndef_i2d(ndef_aux->val, &p, ndef_aux->it);
236
237 if (!*ndef_aux->boundary)
238 return 0;
239 *pbuf = *ndef_aux->boundary;
240 *plen = derlen - (*ndef_aux->boundary - ndef_aux->derbuf);
241
242 return 1;
243}
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-03-22 18:19:05 +0000