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author | cvs2svn <admin@example.com> | 2025-04-14 17:32:06 +0000 |
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committer | cvs2svn <admin@example.com> | 2025-04-14 17:32:06 +0000 |
commit | eb8dd9dca1228af0cd132f515509051ecfabf6f6 (patch) | |
tree | edb6da6af7e865d488dc1a29309f1e1ec226e603 /src/lib/libcrypto/asn1/a_bitstr.c | |
parent | 247f0352e0ed72a4f476db9dc91f4d982bc83eb2 (diff) | |
download | openbsd-tb_20250414.tar.gz openbsd-tb_20250414.tar.bz2 openbsd-tb_20250414.zip |
This commit was manufactured by cvs2git to create tag 'tb_20250414'.tb_20250414
Diffstat (limited to 'src/lib/libcrypto/asn1/a_bitstr.c')
-rw-r--r-- | src/lib/libcrypto/asn1/a_bitstr.c | 342 |
1 files changed, 0 insertions, 342 deletions
diff --git a/src/lib/libcrypto/asn1/a_bitstr.c b/src/lib/libcrypto/asn1/a_bitstr.c deleted file mode 100644 index d5d00c4d44..0000000000 --- a/src/lib/libcrypto/asn1/a_bitstr.c +++ /dev/null | |||
@@ -1,342 +0,0 @@ | |||
1 | /* $OpenBSD: a_bitstr.c,v 1.43 2024/07/08 14:52:31 beck 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 <limits.h> | ||
60 | #include <stdio.h> | ||
61 | #include <string.h> | ||
62 | |||
63 | #include <openssl/asn1.h> | ||
64 | #include <openssl/asn1t.h> | ||
65 | #include <openssl/conf.h> | ||
66 | #include <openssl/err.h> | ||
67 | #include <openssl/x509v3.h> | ||
68 | |||
69 | #include "bytestring.h" | ||
70 | |||
71 | const ASN1_ITEM ASN1_BIT_STRING_it = { | ||
72 | .itype = ASN1_ITYPE_PRIMITIVE, | ||
73 | .utype = V_ASN1_BIT_STRING, | ||
74 | .sname = "ASN1_BIT_STRING", | ||
75 | }; | ||
76 | LCRYPTO_ALIAS(ASN1_BIT_STRING_it); | ||
77 | |||
78 | ASN1_BIT_STRING * | ||
79 | ASN1_BIT_STRING_new(void) | ||
80 | { | ||
81 | return (ASN1_BIT_STRING *)ASN1_item_new(&ASN1_BIT_STRING_it); | ||
82 | } | ||
83 | LCRYPTO_ALIAS(ASN1_BIT_STRING_new); | ||
84 | |||
85 | void | ||
86 | ASN1_BIT_STRING_free(ASN1_BIT_STRING *a) | ||
87 | { | ||
88 | ASN1_item_free((ASN1_VALUE *)a, &ASN1_BIT_STRING_it); | ||
89 | } | ||
90 | LCRYPTO_ALIAS(ASN1_BIT_STRING_free); | ||
91 | |||
92 | static void | ||
93 | asn1_abs_clear_unused_bits(ASN1_BIT_STRING *abs) | ||
94 | { | ||
95 | abs->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07); | ||
96 | } | ||
97 | |||
98 | int | ||
99 | asn1_abs_set_unused_bits(ASN1_BIT_STRING *abs, uint8_t unused_bits) | ||
100 | { | ||
101 | if (unused_bits > 7) | ||
102 | return 0; | ||
103 | |||
104 | asn1_abs_clear_unused_bits(abs); | ||
105 | |||
106 | abs->flags |= ASN1_STRING_FLAG_BITS_LEFT | unused_bits; | ||
107 | |||
108 | return 1; | ||
109 | } | ||
110 | |||
111 | int | ||
112 | ASN1_BIT_STRING_set(ASN1_BIT_STRING *x, unsigned char *d, int len) | ||
113 | { | ||
114 | return ASN1_STRING_set(x, d, len); | ||
115 | } | ||
116 | LCRYPTO_ALIAS(ASN1_BIT_STRING_set); | ||
117 | |||
118 | int | ||
119 | ASN1_BIT_STRING_set_bit(ASN1_BIT_STRING *a, int n, int value) | ||
120 | { | ||
121 | int w, v, iv; | ||
122 | unsigned char *c; | ||
123 | |||
124 | if (a == NULL) | ||
125 | return 0; | ||
126 | if (n < 0) | ||
127 | return 0; | ||
128 | |||
129 | w = n / 8; | ||
130 | v = 1 << (7 - (n & 0x07)); | ||
131 | iv = ~v; | ||
132 | |||
133 | if (value == 0) | ||
134 | v = 0; | ||
135 | |||
136 | asn1_abs_clear_unused_bits(a); | ||
137 | |||
138 | if (a->length < w + 1 || a->data == NULL) { | ||
139 | /* Don't expand if there's no bit to set. */ | ||
140 | if (value == 0) | ||
141 | return 1; | ||
142 | if ((c = recallocarray(a->data, a->length, w + 1, 1)) == NULL) { | ||
143 | ASN1error(ERR_R_MALLOC_FAILURE); | ||
144 | return 0; | ||
145 | } | ||
146 | a->data = c; | ||
147 | a->length = w + 1; | ||
148 | } | ||
149 | |||
150 | a->data[w] = ((a->data[w]) & iv) | v; | ||
151 | while (a->length > 0 && a->data[a->length - 1] == 0) | ||
152 | a->length--; | ||
153 | |||
154 | return 1; | ||
155 | } | ||
156 | LCRYPTO_ALIAS(ASN1_BIT_STRING_set_bit); | ||
157 | |||
158 | int | ||
159 | ASN1_BIT_STRING_get_bit(const ASN1_BIT_STRING *a, int n) | ||
160 | { | ||
161 | int w, v; | ||
162 | |||
163 | if (a == NULL) | ||
164 | return 0; | ||
165 | if (n < 0) | ||
166 | return 0; | ||
167 | |||
168 | w = n / 8; | ||
169 | v = 1 << (7 - (n & 0x07)); | ||
170 | |||
171 | if (a->length < w + 1 || a->data == NULL) | ||
172 | return 0; | ||
173 | |||
174 | return (a->data[w] & v) != 0; | ||
175 | } | ||
176 | LCRYPTO_ALIAS(ASN1_BIT_STRING_get_bit); | ||
177 | |||
178 | int | ||
179 | i2c_ASN1_BIT_STRING(ASN1_BIT_STRING *a, unsigned char **pp) | ||
180 | { | ||
181 | int ret, j, bits, len; | ||
182 | unsigned char *p, *d; | ||
183 | |||
184 | if (a == NULL) | ||
185 | return (0); | ||
186 | |||
187 | if (a->length == INT_MAX) | ||
188 | return (0); | ||
189 | |||
190 | ret = a->length + 1; | ||
191 | |||
192 | if (pp == NULL) | ||
193 | return (ret); | ||
194 | |||
195 | len = a->length; | ||
196 | |||
197 | if (len > 0) { | ||
198 | if (a->flags & ASN1_STRING_FLAG_BITS_LEFT) { | ||
199 | bits = (int)a->flags & 0x07; | ||
200 | } else { | ||
201 | j = 0; | ||
202 | for (; len > 0; len--) { | ||
203 | if (a->data[len - 1]) | ||
204 | break; | ||
205 | } | ||
206 | if (len > 0) | ||
207 | j = a->data[len - 1]; | ||
208 | if (j & 0x01) | ||
209 | bits = 0; | ||
210 | else if (j & 0x02) | ||
211 | bits = 1; | ||
212 | else if (j & 0x04) | ||
213 | bits = 2; | ||
214 | else if (j & 0x08) | ||
215 | bits = 3; | ||
216 | else if (j & 0x10) | ||
217 | bits = 4; | ||
218 | else if (j & 0x20) | ||
219 | bits = 5; | ||
220 | else if (j & 0x40) | ||
221 | bits = 6; | ||
222 | else if (j & 0x80) | ||
223 | bits = 7; | ||
224 | else | ||
225 | bits = 0; /* should not happen */ | ||
226 | } | ||
227 | } else | ||
228 | bits = 0; | ||
229 | |||
230 | p= *pp; | ||
231 | |||
232 | *(p++) = (unsigned char)bits; | ||
233 | d = a->data; | ||
234 | if (len > 0) { | ||
235 | memcpy(p, d, len); | ||
236 | p += len; | ||
237 | p[-1] &= 0xff << bits; | ||
238 | } | ||
239 | *pp = p; | ||
240 | return (ret); | ||
241 | } | ||
242 | |||
243 | int | ||
244 | c2i_ASN1_BIT_STRING_cbs(ASN1_BIT_STRING **out_abs, CBS *cbs) | ||
245 | { | ||
246 | ASN1_BIT_STRING *abs = NULL; | ||
247 | uint8_t *data = NULL; | ||
248 | size_t data_len = 0; | ||
249 | uint8_t unused_bits; | ||
250 | int ret = 0; | ||
251 | |||
252 | if (out_abs == NULL) | ||
253 | goto err; | ||
254 | |||
255 | if (*out_abs != NULL) { | ||
256 | ASN1_BIT_STRING_free(*out_abs); | ||
257 | *out_abs = NULL; | ||
258 | } | ||
259 | |||
260 | if (!CBS_get_u8(cbs, &unused_bits)) { | ||
261 | ASN1error(ASN1_R_STRING_TOO_SHORT); | ||
262 | goto err; | ||
263 | } | ||
264 | |||
265 | if (!CBS_stow(cbs, &data, &data_len)) | ||
266 | goto err; | ||
267 | if (data_len > INT_MAX) | ||
268 | goto err; | ||
269 | |||
270 | if ((abs = ASN1_BIT_STRING_new()) == NULL) | ||
271 | goto err; | ||
272 | |||
273 | abs->data = data; | ||
274 | abs->length = (int)data_len; | ||
275 | data = NULL; | ||
276 | |||
277 | /* | ||
278 | * We do this to preserve the settings. If we modify the settings, | ||
279 | * via the _set_bit function, we will recalculate on output. | ||
280 | */ | ||
281 | if (!asn1_abs_set_unused_bits(abs, unused_bits)) { | ||
282 | ASN1error(ASN1_R_INVALID_BIT_STRING_BITS_LEFT); | ||
283 | goto err; | ||
284 | } | ||
285 | if (abs->length > 0) | ||
286 | abs->data[abs->length - 1] &= 0xff << unused_bits; | ||
287 | |||
288 | *out_abs = abs; | ||
289 | abs = NULL; | ||
290 | |||
291 | ret = 1; | ||
292 | |||
293 | err: | ||
294 | ASN1_BIT_STRING_free(abs); | ||
295 | freezero(data, data_len); | ||
296 | |||
297 | return ret; | ||
298 | } | ||
299 | |||
300 | ASN1_BIT_STRING * | ||
301 | c2i_ASN1_BIT_STRING(ASN1_BIT_STRING **out_abs, const unsigned char **pp, long len) | ||
302 | { | ||
303 | ASN1_BIT_STRING *abs = NULL; | ||
304 | CBS content; | ||
305 | |||
306 | if (out_abs != NULL) { | ||
307 | ASN1_BIT_STRING_free(*out_abs); | ||
308 | *out_abs = NULL; | ||
309 | } | ||
310 | |||
311 | if (len < 0) { | ||
312 | ASN1error(ASN1_R_LENGTH_ERROR); | ||
313 | return NULL; | ||
314 | } | ||
315 | |||
316 | CBS_init(&content, *pp, len); | ||
317 | |||
318 | if (!c2i_ASN1_BIT_STRING_cbs(&abs, &content)) | ||
319 | return NULL; | ||
320 | |||
321 | *pp = CBS_data(&content); | ||
322 | |||
323 | if (out_abs != NULL) | ||
324 | *out_abs = abs; | ||
325 | |||
326 | return abs; | ||
327 | } | ||
328 | |||
329 | int | ||
330 | i2d_ASN1_BIT_STRING(ASN1_BIT_STRING *a, unsigned char **out) | ||
331 | { | ||
332 | return ASN1_item_i2d((ASN1_VALUE *)a, out, &ASN1_BIT_STRING_it); | ||
333 | } | ||
334 | LCRYPTO_ALIAS(i2d_ASN1_BIT_STRING); | ||
335 | |||
336 | ASN1_BIT_STRING * | ||
337 | d2i_ASN1_BIT_STRING(ASN1_BIT_STRING **a, const unsigned char **in, long len) | ||
338 | { | ||
339 | return (ASN1_BIT_STRING *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, | ||
340 | &ASN1_BIT_STRING_it); | ||
341 | } | ||
342 | LCRYPTO_ALIAS(d2i_ASN1_BIT_STRING); | ||