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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/ct/ct_log.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/ct/ct_log.c')
-rw-r--r-- | src/lib/libcrypto/ct/ct_log.c | 379 |
1 files changed, 0 insertions, 379 deletions
diff --git a/src/lib/libcrypto/ct/ct_log.c b/src/lib/libcrypto/ct/ct_log.c deleted file mode 100644 index 72045477ac..0000000000 --- a/src/lib/libcrypto/ct/ct_log.c +++ /dev/null | |||
@@ -1,379 +0,0 @@ | |||
1 | /* $OpenBSD: ct_log.c,v 1.9 2024/11/05 09:35:40 tb Exp $ */ | ||
2 | /* Author: Adam Eijdenberg <adam.eijdenberg@gmail.com>. */ | ||
3 | /* ==================================================================== | ||
4 | * Copyright (c) 1998-2016 The OpenSSL Project. All rights reserved. | ||
5 | * | ||
6 | * Redistribution and use in source and binary forms, with or without | ||
7 | * modification, are permitted provided that the following conditions | ||
8 | * are met: | ||
9 | * | ||
10 | * 1. Redistributions of source code must retain the above copyright | ||
11 | * notice, this list of conditions and the following disclaimer. | ||
12 | * | ||
13 | * 2. Redistributions in binary form must reproduce the above copyright | ||
14 | * notice, this list of conditions and the following disclaimer in | ||
15 | * the documentation and/or other materials provided with the | ||
16 | * distribution. | ||
17 | * | ||
18 | * 3. All advertising materials mentioning features or use of this | ||
19 | * software must display the following acknowledgment: | ||
20 | * "This product includes software developed by the OpenSSL Project | ||
21 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | ||
22 | * | ||
23 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | ||
24 | * endorse or promote products derived from this software without | ||
25 | * prior written permission. For written permission, please contact | ||
26 | * openssl-core@openssl.org. | ||
27 | * | ||
28 | * 5. Products derived from this software may not be called "OpenSSL" | ||
29 | * nor may "OpenSSL" appear in their names without prior written | ||
30 | * permission of the OpenSSL Project. | ||
31 | * | ||
32 | * 6. Redistributions of any form whatsoever must retain the following | ||
33 | * acknowledgment: | ||
34 | * "This product includes software developed by the OpenSSL Project | ||
35 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | ||
36 | * | ||
37 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | ||
38 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
39 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
40 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | ||
41 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
42 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
43 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
44 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
45 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
46 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
47 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | ||
48 | * OF THE POSSIBILITY OF SUCH DAMAGE. | ||
49 | * ==================================================================== | ||
50 | * | ||
51 | * This product includes cryptographic software written by Eric Young | ||
52 | * (eay@cryptsoft.com). This product includes software written by Tim | ||
53 | * Hudson (tjh@cryptsoft.com). | ||
54 | * | ||
55 | * Licensed under the OpenSSL license (the "License"). You may not use | ||
56 | * this file except in compliance with the License. You can obtain a copy | ||
57 | * in the file LICENSE in the source distribution or at | ||
58 | * https://www.openssl.org/source/license.html | ||
59 | */ | ||
60 | |||
61 | #include <stdint.h> | ||
62 | #include <stdlib.h> | ||
63 | #include <string.h> | ||
64 | |||
65 | #include <openssl/asn1.h> | ||
66 | #include <openssl/conf.h> | ||
67 | #include <openssl/ct.h> | ||
68 | #include <openssl/err.h> | ||
69 | #include <openssl/evp.h> | ||
70 | #include <openssl/sha.h> | ||
71 | #include <openssl/x509.h> | ||
72 | |||
73 | #include "conf_local.h" | ||
74 | #include "crypto_local.h" | ||
75 | |||
76 | |||
77 | /* | ||
78 | * Information about a CT log server. | ||
79 | */ | ||
80 | struct ctlog_st { | ||
81 | char *name; | ||
82 | uint8_t log_id[CT_V1_HASHLEN]; | ||
83 | EVP_PKEY *public_key; | ||
84 | }; | ||
85 | |||
86 | /* | ||
87 | * A store for multiple CTLOG instances. | ||
88 | * It takes ownership of any CTLOG instances added to it. | ||
89 | */ | ||
90 | struct ctlog_store_st { | ||
91 | STACK_OF(CTLOG) *logs; | ||
92 | }; | ||
93 | |||
94 | /* The context when loading a CT log list from a CONF file. */ | ||
95 | typedef struct ctlog_store_load_ctx_st { | ||
96 | CTLOG_STORE *log_store; | ||
97 | CONF *conf; | ||
98 | size_t invalid_log_entries; | ||
99 | } CTLOG_STORE_LOAD_CTX; | ||
100 | |||
101 | /* | ||
102 | * Creates an empty context for loading a CT log store. | ||
103 | * It should be populated before use. | ||
104 | */ | ||
105 | static CTLOG_STORE_LOAD_CTX *ctlog_store_load_ctx_new(void); | ||
106 | |||
107 | /* | ||
108 | * Deletes a CT log store load context. | ||
109 | * Does not delete any of the fields. | ||
110 | */ | ||
111 | static void ctlog_store_load_ctx_free(CTLOG_STORE_LOAD_CTX *ctx); | ||
112 | |||
113 | static CTLOG_STORE_LOAD_CTX * | ||
114 | ctlog_store_load_ctx_new(void) | ||
115 | { | ||
116 | CTLOG_STORE_LOAD_CTX *ctx = calloc(1, sizeof(*ctx)); | ||
117 | |||
118 | if (ctx == NULL) | ||
119 | CTerror(ERR_R_MALLOC_FAILURE); | ||
120 | |||
121 | return ctx; | ||
122 | } | ||
123 | |||
124 | static void | ||
125 | ctlog_store_load_ctx_free(CTLOG_STORE_LOAD_CTX *ctx) | ||
126 | { | ||
127 | free(ctx); | ||
128 | } | ||
129 | |||
130 | /* Converts a log's public key into a SHA256 log ID */ | ||
131 | static int | ||
132 | ct_v1_log_id_from_pkey(EVP_PKEY *pkey, unsigned char log_id[CT_V1_HASHLEN]) | ||
133 | { | ||
134 | int ret = 0; | ||
135 | unsigned char *pkey_der = NULL; | ||
136 | int pkey_der_len = i2d_PUBKEY(pkey, &pkey_der); | ||
137 | |||
138 | if (pkey_der_len <= 0) { | ||
139 | CTerror(CT_R_LOG_KEY_INVALID); | ||
140 | goto err; | ||
141 | } | ||
142 | |||
143 | SHA256(pkey_der, pkey_der_len, log_id); | ||
144 | ret = 1; | ||
145 | err: | ||
146 | free(pkey_der); | ||
147 | return ret; | ||
148 | } | ||
149 | |||
150 | CTLOG_STORE * | ||
151 | CTLOG_STORE_new(void) | ||
152 | { | ||
153 | CTLOG_STORE *ret = calloc(1, sizeof(*ret)); | ||
154 | |||
155 | if (ret == NULL) { | ||
156 | CTerror(ERR_R_MALLOC_FAILURE); | ||
157 | return NULL; | ||
158 | } | ||
159 | |||
160 | ret->logs = sk_CTLOG_new_null(); | ||
161 | if (ret->logs == NULL) | ||
162 | goto err; | ||
163 | |||
164 | return ret; | ||
165 | err: | ||
166 | free(ret); | ||
167 | return NULL; | ||
168 | } | ||
169 | LCRYPTO_ALIAS(CTLOG_STORE_new); | ||
170 | |||
171 | void | ||
172 | CTLOG_STORE_free(CTLOG_STORE *store) | ||
173 | { | ||
174 | if (store != NULL) { | ||
175 | sk_CTLOG_pop_free(store->logs, CTLOG_free); | ||
176 | free(store); | ||
177 | } | ||
178 | } | ||
179 | LCRYPTO_ALIAS(CTLOG_STORE_free); | ||
180 | |||
181 | static int | ||
182 | ctlog_new_from_conf(CTLOG **ct_log, const CONF *conf, const char *section) | ||
183 | { | ||
184 | const char *description = NCONF_get_string(conf, section, | ||
185 | "description"); | ||
186 | char *pkey_base64; | ||
187 | |||
188 | if (description == NULL) { | ||
189 | CTerror(CT_R_LOG_CONF_MISSING_DESCRIPTION); | ||
190 | return 0; | ||
191 | } | ||
192 | |||
193 | pkey_base64 = NCONF_get_string(conf, section, "key"); | ||
194 | if (pkey_base64 == NULL) { | ||
195 | CTerror(CT_R_LOG_CONF_MISSING_KEY); | ||
196 | return 0; | ||
197 | } | ||
198 | |||
199 | return CTLOG_new_from_base64(ct_log, pkey_base64, description); | ||
200 | } | ||
201 | |||
202 | int | ||
203 | CTLOG_STORE_load_default_file(CTLOG_STORE *store) | ||
204 | { | ||
205 | return CTLOG_STORE_load_file(store, CTLOG_FILE); | ||
206 | } | ||
207 | LCRYPTO_ALIAS(CTLOG_STORE_load_default_file); | ||
208 | |||
209 | /* | ||
210 | * Called by CONF_parse_list, which stops if this returns <= 0, | ||
211 | * Otherwise, one bad log entry would stop loading of any of | ||
212 | * the following log entries. | ||
213 | * It may stop parsing and returns -1 on any internal (malloc) error. | ||
214 | */ | ||
215 | static int | ||
216 | ctlog_store_load_log(const char *log_name, int log_name_len, void *arg) | ||
217 | { | ||
218 | CTLOG_STORE_LOAD_CTX *load_ctx = arg; | ||
219 | CTLOG *ct_log = NULL; | ||
220 | /* log_name may not be null-terminated, so fix that before using it */ | ||
221 | char *tmp; | ||
222 | int ret = 0; | ||
223 | |||
224 | /* log_name will be NULL for empty list entries */ | ||
225 | if (log_name == NULL) | ||
226 | return 1; | ||
227 | |||
228 | tmp = strndup(log_name, log_name_len); | ||
229 | if (tmp == NULL) | ||
230 | goto mem_err; | ||
231 | |||
232 | ret = ctlog_new_from_conf(&ct_log, load_ctx->conf, tmp); | ||
233 | free(tmp); | ||
234 | |||
235 | if (ret < 0) { | ||
236 | /* Propagate any internal error */ | ||
237 | return ret; | ||
238 | } | ||
239 | if (ret == 0) { | ||
240 | /* If we can't load this log, record that fact and skip it */ | ||
241 | ++load_ctx->invalid_log_entries; | ||
242 | return 1; | ||
243 | } | ||
244 | |||
245 | if (!sk_CTLOG_push(load_ctx->log_store->logs, ct_log)) { | ||
246 | goto mem_err; | ||
247 | } | ||
248 | return 1; | ||
249 | |||
250 | mem_err: | ||
251 | CTLOG_free(ct_log); | ||
252 | CTerror(ERR_R_MALLOC_FAILURE); | ||
253 | return -1; | ||
254 | } | ||
255 | |||
256 | int | ||
257 | CTLOG_STORE_load_file(CTLOG_STORE *store, const char *file) | ||
258 | { | ||
259 | int ret = 0; | ||
260 | char *enabled_logs; | ||
261 | CTLOG_STORE_LOAD_CTX* load_ctx = ctlog_store_load_ctx_new(); | ||
262 | |||
263 | if (load_ctx == NULL) | ||
264 | return 0; | ||
265 | load_ctx->log_store = store; | ||
266 | load_ctx->conf = NCONF_new(NULL); | ||
267 | if (load_ctx->conf == NULL) | ||
268 | goto end; | ||
269 | |||
270 | if (NCONF_load(load_ctx->conf, file, NULL) <= 0) { | ||
271 | CTerror(CT_R_LOG_CONF_INVALID); | ||
272 | goto end; | ||
273 | } | ||
274 | |||
275 | enabled_logs = NCONF_get_string(load_ctx->conf, NULL, "enabled_logs"); | ||
276 | if (enabled_logs == NULL) { | ||
277 | CTerror(CT_R_LOG_CONF_INVALID); | ||
278 | goto end; | ||
279 | } | ||
280 | |||
281 | if (!CONF_parse_list(enabled_logs, ',', 1, ctlog_store_load_log, load_ctx) || | ||
282 | load_ctx->invalid_log_entries > 0) { | ||
283 | CTerror(CT_R_LOG_CONF_INVALID); | ||
284 | goto end; | ||
285 | } | ||
286 | |||
287 | ret = 1; | ||
288 | end: | ||
289 | NCONF_free(load_ctx->conf); | ||
290 | ctlog_store_load_ctx_free(load_ctx); | ||
291 | return ret; | ||
292 | } | ||
293 | LCRYPTO_ALIAS(CTLOG_STORE_load_file); | ||
294 | |||
295 | /* | ||
296 | * Initialize a new CTLOG object. | ||
297 | * Takes ownership of the public key. | ||
298 | * Copies the name. | ||
299 | */ | ||
300 | CTLOG * | ||
301 | CTLOG_new(EVP_PKEY *public_key, const char *name) | ||
302 | { | ||
303 | CTLOG *ret = calloc(1, sizeof(*ret)); | ||
304 | |||
305 | if (ret == NULL) { | ||
306 | CTerror(ERR_R_MALLOC_FAILURE); | ||
307 | return NULL; | ||
308 | } | ||
309 | |||
310 | ret->name = strdup(name); | ||
311 | if (ret->name == NULL) { | ||
312 | CTerror(ERR_R_MALLOC_FAILURE); | ||
313 | goto err; | ||
314 | } | ||
315 | |||
316 | if (ct_v1_log_id_from_pkey(public_key, ret->log_id) != 1) | ||
317 | goto err; | ||
318 | |||
319 | ret->public_key = public_key; | ||
320 | return ret; | ||
321 | err: | ||
322 | CTLOG_free(ret); | ||
323 | return NULL; | ||
324 | } | ||
325 | LCRYPTO_ALIAS(CTLOG_new); | ||
326 | |||
327 | /* Frees CT log and associated structures */ | ||
328 | void | ||
329 | CTLOG_free(CTLOG *log) | ||
330 | { | ||
331 | if (log != NULL) { | ||
332 | free(log->name); | ||
333 | EVP_PKEY_free(log->public_key); | ||
334 | free(log); | ||
335 | } | ||
336 | } | ||
337 | LCRYPTO_ALIAS(CTLOG_free); | ||
338 | |||
339 | const char * | ||
340 | CTLOG_get0_name(const CTLOG *log) | ||
341 | { | ||
342 | return log->name; | ||
343 | } | ||
344 | LCRYPTO_ALIAS(CTLOG_get0_name); | ||
345 | |||
346 | void | ||
347 | CTLOG_get0_log_id(const CTLOG *log, const uint8_t **log_id, size_t *log_id_len) | ||
348 | { | ||
349 | *log_id = log->log_id; | ||
350 | *log_id_len = CT_V1_HASHLEN; | ||
351 | } | ||
352 | LCRYPTO_ALIAS(CTLOG_get0_log_id); | ||
353 | |||
354 | EVP_PKEY * | ||
355 | CTLOG_get0_public_key(const CTLOG *log) | ||
356 | { | ||
357 | return log->public_key; | ||
358 | } | ||
359 | LCRYPTO_ALIAS(CTLOG_get0_public_key); | ||
360 | |||
361 | /* | ||
362 | * Given a log ID, finds the matching log. | ||
363 | * Returns NULL if no match found. | ||
364 | */ | ||
365 | const CTLOG * | ||
366 | CTLOG_STORE_get0_log_by_id(const CTLOG_STORE *store, const uint8_t *log_id, | ||
367 | size_t log_id_len) | ||
368 | { | ||
369 | int i; | ||
370 | |||
371 | for (i = 0; i < sk_CTLOG_num(store->logs); ++i) { | ||
372 | const CTLOG *log = sk_CTLOG_value(store->logs, i); | ||
373 | if (memcmp(log->log_id, log_id, log_id_len) == 0) | ||
374 | return log; | ||
375 | } | ||
376 | |||
377 | return NULL; | ||
378 | } | ||
379 | LCRYPTO_ALIAS(CTLOG_STORE_get0_log_by_id); | ||