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Commit | Line | Data |
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0f113f3e | 1 | /* |
b0edda11 | 2 | * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved. |
c7235be6 | 3 | * |
4f22f405 RS |
4 | * Licensed under the OpenSSL license (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
c7235be6 UM |
8 | */ |
9 | ||
4cff10dc | 10 | #include "e_os.h" |
b39fc560 | 11 | #include "internal/cryptlib.h" |
c7235be6 | 12 | |
c7235be6 UM |
13 | #include <openssl/objects.h> |
14 | #include <openssl/ts.h> | |
15 | #include <openssl/pkcs7.h> | |
ca4a494c | 16 | #include "ts_lcl.h" |
c7235be6 | 17 | |
c7235be6 UM |
18 | static ASN1_INTEGER *def_serial_cb(struct TS_resp_ctx *, void *); |
19 | static int def_time_cb(struct TS_resp_ctx *, void *, long *sec, long *usec); | |
20 | static int def_extension_cb(struct TS_resp_ctx *, X509_EXTENSION *, void *); | |
21 | ||
9c422b5b RS |
22 | static void ts_RESP_CTX_init(TS_RESP_CTX *ctx); |
23 | static void ts_RESP_CTX_cleanup(TS_RESP_CTX *ctx); | |
24 | static int ts_RESP_check_request(TS_RESP_CTX *ctx); | |
25 | static ASN1_OBJECT *ts_RESP_get_policy(TS_RESP_CTX *ctx); | |
26 | static TS_TST_INFO *ts_RESP_create_tst_info(TS_RESP_CTX *ctx, | |
0f113f3e | 27 | ASN1_OBJECT *policy); |
9c422b5b RS |
28 | static int ts_RESP_process_extensions(TS_RESP_CTX *ctx); |
29 | static int ts_RESP_sign(TS_RESP_CTX *ctx); | |
c7235be6 | 30 | |
9c422b5b | 31 | static ESS_SIGNING_CERT *ess_SIGNING_CERT_new_init(X509 *signcert, |
0f113f3e | 32 | STACK_OF(X509) *certs); |
9c422b5b RS |
33 | static ESS_CERT_ID *ess_CERT_ID_new_init(X509 *cert, int issuer_needed); |
34 | static int ts_TST_INFO_content_new(PKCS7 *p7); | |
f0ef20bf MK |
35 | static int ess_add_signing_cert(PKCS7_SIGNER_INFO *si, ESS_SIGNING_CERT *sc); |
36 | ||
37 | static ESS_SIGNING_CERT_V2 *ess_signing_cert_v2_new_init(const EVP_MD *hash_alg, | |
38 | X509 *signcert, | |
39 | STACK_OF(X509) | |
40 | *certs); | |
41 | static ESS_CERT_ID_V2 *ess_cert_id_v2_new_init(const EVP_MD *hash_alg, | |
42 | X509 *cert, int issuer_needed); | |
43 | static int ess_add_signing_cert_v2(PKCS7_SIGNER_INFO *si, | |
44 | ESS_SIGNING_CERT_V2 *sc); | |
c7235be6 | 45 | |
0f113f3e MC |
46 | static ASN1_GENERALIZEDTIME |
47 | *TS_RESP_set_genTime_with_precision(ASN1_GENERALIZEDTIME *, long, long, | |
48 | unsigned); | |
c7235be6 | 49 | |
18cd23df | 50 | /* Default callback for response generation. */ |
c7235be6 | 51 | static ASN1_INTEGER *def_serial_cb(struct TS_resp_ctx *ctx, void *data) |
0f113f3e MC |
52 | { |
53 | ASN1_INTEGER *serial = ASN1_INTEGER_new(); | |
18cd23df | 54 | |
90945fa3 | 55 | if (serial == NULL) |
0f113f3e MC |
56 | goto err; |
57 | if (!ASN1_INTEGER_set(serial, 1)) | |
58 | goto err; | |
59 | return serial; | |
18cd23df | 60 | |
c7235be6 | 61 | err: |
0f113f3e MC |
62 | TSerr(TS_F_DEF_SERIAL_CB, ERR_R_MALLOC_FAILURE); |
63 | TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION, | |
64 | "Error during serial number generation."); | |
65 | return NULL; | |
66 | } | |
c7235be6 UM |
67 | |
68 | #if defined(OPENSSL_SYS_UNIX) | |
69 | ||
0f113f3e MC |
70 | static int def_time_cb(struct TS_resp_ctx *ctx, void *data, |
71 | long *sec, long *usec) | |
72 | { | |
73 | struct timeval tv; | |
74 | if (gettimeofday(&tv, NULL) != 0) { | |
75 | TSerr(TS_F_DEF_TIME_CB, TS_R_TIME_SYSCALL_ERROR); | |
76 | TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION, | |
77 | "Time is not available."); | |
78 | TS_RESP_CTX_add_failure_info(ctx, TS_INFO_TIME_NOT_AVAILABLE); | |
79 | return 0; | |
80 | } | |
0f113f3e MC |
81 | *sec = tv.tv_sec; |
82 | *usec = tv.tv_usec; | |
83 | ||
84 | return 1; | |
85 | } | |
c7235be6 UM |
86 | |
87 | #else | |
88 | ||
0f113f3e MC |
89 | static int def_time_cb(struct TS_resp_ctx *ctx, void *data, |
90 | long *sec, long *usec) | |
91 | { | |
92 | time_t t; | |
93 | if (time(&t) == (time_t)-1) { | |
94 | TSerr(TS_F_DEF_TIME_CB, TS_R_TIME_SYSCALL_ERROR); | |
95 | TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION, | |
96 | "Time is not available."); | |
97 | TS_RESP_CTX_add_failure_info(ctx, TS_INFO_TIME_NOT_AVAILABLE); | |
98 | return 0; | |
99 | } | |
0f113f3e MC |
100 | *sec = (long)t; |
101 | *usec = 0; | |
102 | ||
103 | return 1; | |
104 | } | |
c7235be6 UM |
105 | |
106 | #endif | |
107 | ||
108 | static int def_extension_cb(struct TS_resp_ctx *ctx, X509_EXTENSION *ext, | |
0f113f3e MC |
109 | void *data) |
110 | { | |
0f113f3e MC |
111 | TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION, |
112 | "Unsupported extension."); | |
113 | TS_RESP_CTX_add_failure_info(ctx, TS_INFO_UNACCEPTED_EXTENSION); | |
114 | return 0; | |
115 | } | |
c7235be6 UM |
116 | |
117 | /* TS_RESP_CTX management functions. */ | |
118 | ||
119 | TS_RESP_CTX *TS_RESP_CTX_new() | |
0f113f3e MC |
120 | { |
121 | TS_RESP_CTX *ctx; | |
c7235be6 | 122 | |
b51bce94 | 123 | if ((ctx = OPENSSL_zalloc(sizeof(*ctx))) == NULL) { |
0f113f3e MC |
124 | TSerr(TS_F_TS_RESP_CTX_NEW, ERR_R_MALLOC_FAILURE); |
125 | return NULL; | |
126 | } | |
c7235be6 | 127 | |
e20b4727 DSH |
128 | ctx->signer_md = EVP_sha256(); |
129 | ||
0f113f3e MC |
130 | ctx->serial_cb = def_serial_cb; |
131 | ctx->time_cb = def_time_cb; | |
132 | ctx->extension_cb = def_extension_cb; | |
c7235be6 | 133 | |
0f113f3e MC |
134 | return ctx; |
135 | } | |
c7235be6 UM |
136 | |
137 | void TS_RESP_CTX_free(TS_RESP_CTX *ctx) | |
0f113f3e MC |
138 | { |
139 | if (!ctx) | |
140 | return; | |
141 | ||
142 | X509_free(ctx->signer_cert); | |
143 | EVP_PKEY_free(ctx->signer_key); | |
144 | sk_X509_pop_free(ctx->certs, X509_free); | |
145 | sk_ASN1_OBJECT_pop_free(ctx->policies, ASN1_OBJECT_free); | |
146 | ASN1_OBJECT_free(ctx->default_policy); | |
147 | sk_EVP_MD_free(ctx->mds); /* No EVP_MD_free method exists. */ | |
148 | ASN1_INTEGER_free(ctx->seconds); | |
149 | ASN1_INTEGER_free(ctx->millis); | |
150 | ASN1_INTEGER_free(ctx->micros); | |
151 | OPENSSL_free(ctx); | |
152 | } | |
c7235be6 UM |
153 | |
154 | int TS_RESP_CTX_set_signer_cert(TS_RESP_CTX *ctx, X509 *signer) | |
0f113f3e MC |
155 | { |
156 | if (X509_check_purpose(signer, X509_PURPOSE_TIMESTAMP_SIGN, 0) != 1) { | |
157 | TSerr(TS_F_TS_RESP_CTX_SET_SIGNER_CERT, | |
158 | TS_R_INVALID_SIGNER_CERTIFICATE_PURPOSE); | |
159 | return 0; | |
160 | } | |
222561fe | 161 | X509_free(ctx->signer_cert); |
0f113f3e | 162 | ctx->signer_cert = signer; |
05f0fb9f | 163 | X509_up_ref(ctx->signer_cert); |
0f113f3e MC |
164 | return 1; |
165 | } | |
c7235be6 UM |
166 | |
167 | int TS_RESP_CTX_set_signer_key(TS_RESP_CTX *ctx, EVP_PKEY *key) | |
0f113f3e | 168 | { |
c5ba2d99 | 169 | EVP_PKEY_free(ctx->signer_key); |
0f113f3e | 170 | ctx->signer_key = key; |
3aeb9348 | 171 | EVP_PKEY_up_ref(ctx->signer_key); |
c7235be6 | 172 | |
0f113f3e MC |
173 | return 1; |
174 | } | |
c7235be6 | 175 | |
e20b4727 DSH |
176 | int TS_RESP_CTX_set_signer_digest(TS_RESP_CTX *ctx, const EVP_MD *md) |
177 | { | |
178 | ctx->signer_md = md; | |
179 | return 1; | |
180 | } | |
181 | ||
c47ba4e9 | 182 | int TS_RESP_CTX_set_def_policy(TS_RESP_CTX *ctx, const ASN1_OBJECT *def_policy) |
0f113f3e | 183 | { |
2ace7450 | 184 | ASN1_OBJECT_free(ctx->default_policy); |
75ebbd9a | 185 | if ((ctx->default_policy = OBJ_dup(def_policy)) == NULL) |
0f113f3e MC |
186 | goto err; |
187 | return 1; | |
c7235be6 | 188 | err: |
0f113f3e MC |
189 | TSerr(TS_F_TS_RESP_CTX_SET_DEF_POLICY, ERR_R_MALLOC_FAILURE); |
190 | return 0; | |
191 | } | |
c7235be6 UM |
192 | |
193 | int TS_RESP_CTX_set_certs(TS_RESP_CTX *ctx, STACK_OF(X509) *certs) | |
0f113f3e MC |
194 | { |
195 | ||
222561fe RS |
196 | sk_X509_pop_free(ctx->certs, X509_free); |
197 | ctx->certs = NULL; | |
0f113f3e MC |
198 | if (!certs) |
199 | return 1; | |
75ebbd9a | 200 | if ((ctx->certs = X509_chain_up_ref(certs)) == NULL) { |
0f113f3e MC |
201 | TSerr(TS_F_TS_RESP_CTX_SET_CERTS, ERR_R_MALLOC_FAILURE); |
202 | return 0; | |
203 | } | |
204 | ||
205 | return 1; | |
206 | } | |
c7235be6 | 207 | |
c47ba4e9 | 208 | int TS_RESP_CTX_add_policy(TS_RESP_CTX *ctx, const ASN1_OBJECT *policy) |
0f113f3e MC |
209 | { |
210 | ASN1_OBJECT *copy = NULL; | |
211 | ||
75ebbd9a RS |
212 | if (ctx->policies == NULL |
213 | && (ctx->policies = sk_ASN1_OBJECT_new_null()) == NULL) | |
0f113f3e | 214 | goto err; |
75ebbd9a | 215 | if ((copy = OBJ_dup(policy)) == NULL) |
0f113f3e MC |
216 | goto err; |
217 | if (!sk_ASN1_OBJECT_push(ctx->policies, copy)) | |
218 | goto err; | |
219 | ||
220 | return 1; | |
c7235be6 | 221 | err: |
0f113f3e MC |
222 | TSerr(TS_F_TS_RESP_CTX_ADD_POLICY, ERR_R_MALLOC_FAILURE); |
223 | ASN1_OBJECT_free(copy); | |
224 | return 0; | |
225 | } | |
c7235be6 UM |
226 | |
227 | int TS_RESP_CTX_add_md(TS_RESP_CTX *ctx, const EVP_MD *md) | |
0f113f3e | 228 | { |
75ebbd9a RS |
229 | if (ctx->mds == NULL |
230 | && (ctx->mds = sk_EVP_MD_new_null()) == NULL) | |
0f113f3e | 231 | goto err; |
ac94c8fd | 232 | if (!sk_EVP_MD_push(ctx->mds, md)) |
0f113f3e MC |
233 | goto err; |
234 | ||
235 | return 1; | |
c7235be6 | 236 | err: |
0f113f3e MC |
237 | TSerr(TS_F_TS_RESP_CTX_ADD_MD, ERR_R_MALLOC_FAILURE); |
238 | return 0; | |
239 | } | |
240 | ||
241 | #define TS_RESP_CTX_accuracy_free(ctx) \ | |
242 | ASN1_INTEGER_free(ctx->seconds); \ | |
243 | ctx->seconds = NULL; \ | |
244 | ASN1_INTEGER_free(ctx->millis); \ | |
245 | ctx->millis = NULL; \ | |
246 | ASN1_INTEGER_free(ctx->micros); \ | |
247 | ctx->micros = NULL; | |
248 | ||
249 | int TS_RESP_CTX_set_accuracy(TS_RESP_CTX *ctx, | |
250 | int secs, int millis, int micros) | |
251 | { | |
252 | ||
253 | TS_RESP_CTX_accuracy_free(ctx); | |
75ebbd9a RS |
254 | if (secs |
255 | && ((ctx->seconds = ASN1_INTEGER_new()) == NULL | |
256 | || !ASN1_INTEGER_set(ctx->seconds, secs))) | |
0f113f3e | 257 | goto err; |
75ebbd9a RS |
258 | if (millis |
259 | && ((ctx->millis = ASN1_INTEGER_new()) == NULL | |
260 | || !ASN1_INTEGER_set(ctx->millis, millis))) | |
0f113f3e | 261 | goto err; |
75ebbd9a RS |
262 | if (micros |
263 | && ((ctx->micros = ASN1_INTEGER_new()) == NULL | |
264 | || !ASN1_INTEGER_set(ctx->micros, micros))) | |
0f113f3e MC |
265 | goto err; |
266 | ||
267 | return 1; | |
c7235be6 | 268 | err: |
0f113f3e MC |
269 | TS_RESP_CTX_accuracy_free(ctx); |
270 | TSerr(TS_F_TS_RESP_CTX_SET_ACCURACY, ERR_R_MALLOC_FAILURE); | |
271 | return 0; | |
272 | } | |
c7235be6 UM |
273 | |
274 | void TS_RESP_CTX_add_flags(TS_RESP_CTX *ctx, int flags) | |
0f113f3e MC |
275 | { |
276 | ctx->flags |= flags; | |
277 | } | |
c7235be6 UM |
278 | |
279 | void TS_RESP_CTX_set_serial_cb(TS_RESP_CTX *ctx, TS_serial_cb cb, void *data) | |
0f113f3e MC |
280 | { |
281 | ctx->serial_cb = cb; | |
282 | ctx->serial_cb_data = data; | |
283 | } | |
c7235be6 UM |
284 | |
285 | void TS_RESP_CTX_set_time_cb(TS_RESP_CTX *ctx, TS_time_cb cb, void *data) | |
0f113f3e MC |
286 | { |
287 | ctx->time_cb = cb; | |
288 | ctx->time_cb_data = data; | |
289 | } | |
290 | ||
291 | void TS_RESP_CTX_set_extension_cb(TS_RESP_CTX *ctx, | |
292 | TS_extension_cb cb, void *data) | |
293 | { | |
294 | ctx->extension_cb = cb; | |
295 | ctx->extension_cb_data = data; | |
296 | } | |
297 | ||
298 | int TS_RESP_CTX_set_status_info(TS_RESP_CTX *ctx, | |
299 | int status, const char *text) | |
300 | { | |
301 | TS_STATUS_INFO *si = NULL; | |
302 | ASN1_UTF8STRING *utf8_text = NULL; | |
303 | int ret = 0; | |
304 | ||
75ebbd9a | 305 | if ((si = TS_STATUS_INFO_new()) == NULL) |
0f113f3e MC |
306 | goto err; |
307 | if (!ASN1_INTEGER_set(si->status, status)) | |
308 | goto err; | |
309 | if (text) { | |
75ebbd9a | 310 | if ((utf8_text = ASN1_UTF8STRING_new()) == NULL |
0f113f3e MC |
311 | || !ASN1_STRING_set(utf8_text, text, strlen(text))) |
312 | goto err; | |
75ebbd9a RS |
313 | if (si->text == NULL |
314 | && (si->text = sk_ASN1_UTF8STRING_new_null()) == NULL) | |
0f113f3e MC |
315 | goto err; |
316 | if (!sk_ASN1_UTF8STRING_push(si->text, utf8_text)) | |
317 | goto err; | |
318 | utf8_text = NULL; /* Ownership is lost. */ | |
319 | } | |
320 | if (!TS_RESP_set_status_info(ctx->response, si)) | |
321 | goto err; | |
322 | ret = 1; | |
c7235be6 | 323 | err: |
0f113f3e MC |
324 | if (!ret) |
325 | TSerr(TS_F_TS_RESP_CTX_SET_STATUS_INFO, ERR_R_MALLOC_FAILURE); | |
326 | TS_STATUS_INFO_free(si); | |
327 | ASN1_UTF8STRING_free(utf8_text); | |
328 | return ret; | |
329 | } | |
330 | ||
331 | int TS_RESP_CTX_set_status_info_cond(TS_RESP_CTX *ctx, | |
332 | int status, const char *text) | |
333 | { | |
334 | int ret = 1; | |
ca4a494c | 335 | TS_STATUS_INFO *si = ctx->response->status_info; |
0f113f3e MC |
336 | |
337 | if (ASN1_INTEGER_get(si->status) == TS_STATUS_GRANTED) { | |
0f113f3e MC |
338 | ret = TS_RESP_CTX_set_status_info(ctx, status, text); |
339 | } | |
340 | return ret; | |
341 | } | |
c7235be6 UM |
342 | |
343 | int TS_RESP_CTX_add_failure_info(TS_RESP_CTX *ctx, int failure) | |
0f113f3e | 344 | { |
ca4a494c | 345 | TS_STATUS_INFO *si = ctx->response->status_info; |
75ebbd9a RS |
346 | if (si->failure_info == NULL |
347 | && (si->failure_info = ASN1_BIT_STRING_new()) == NULL) | |
0f113f3e MC |
348 | goto err; |
349 | if (!ASN1_BIT_STRING_set_bit(si->failure_info, failure, 1)) | |
350 | goto err; | |
351 | return 1; | |
c7235be6 | 352 | err: |
0f113f3e MC |
353 | TSerr(TS_F_TS_RESP_CTX_ADD_FAILURE_INFO, ERR_R_MALLOC_FAILURE); |
354 | return 0; | |
355 | } | |
c7235be6 UM |
356 | |
357 | TS_REQ *TS_RESP_CTX_get_request(TS_RESP_CTX *ctx) | |
0f113f3e MC |
358 | { |
359 | return ctx->request; | |
360 | } | |
c7235be6 UM |
361 | |
362 | TS_TST_INFO *TS_RESP_CTX_get_tst_info(TS_RESP_CTX *ctx) | |
0f113f3e MC |
363 | { |
364 | return ctx->tst_info; | |
365 | } | |
366 | ||
367 | int TS_RESP_CTX_set_clock_precision_digits(TS_RESP_CTX *ctx, | |
368 | unsigned precision) | |
369 | { | |
370 | if (precision > TS_MAX_CLOCK_PRECISION_DIGITS) | |
371 | return 0; | |
372 | ctx->clock_precision_digits = precision; | |
373 | return 1; | |
374 | } | |
c7235be6 UM |
375 | |
376 | /* Main entry method of the response generation. */ | |
377 | TS_RESP *TS_RESP_create_response(TS_RESP_CTX *ctx, BIO *req_bio) | |
0f113f3e MC |
378 | { |
379 | ASN1_OBJECT *policy; | |
380 | TS_RESP *response; | |
381 | int result = 0; | |
382 | ||
9c422b5b | 383 | ts_RESP_CTX_init(ctx); |
0f113f3e | 384 | |
75ebbd9a | 385 | if ((ctx->response = TS_RESP_new()) == NULL) { |
0f113f3e MC |
386 | TSerr(TS_F_TS_RESP_CREATE_RESPONSE, ERR_R_MALLOC_FAILURE); |
387 | goto end; | |
388 | } | |
75ebbd9a | 389 | if ((ctx->request = d2i_TS_REQ_bio(req_bio, NULL)) == NULL) { |
0f113f3e | 390 | TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION, |
18cd23df | 391 | "Bad request format or system error."); |
0f113f3e MC |
392 | TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_DATA_FORMAT); |
393 | goto end; | |
394 | } | |
0f113f3e MC |
395 | if (!TS_RESP_CTX_set_status_info(ctx, TS_STATUS_GRANTED, NULL)) |
396 | goto end; | |
9c422b5b | 397 | if (!ts_RESP_check_request(ctx)) |
0f113f3e | 398 | goto end; |
9c422b5b | 399 | if ((policy = ts_RESP_get_policy(ctx)) == NULL) |
0f113f3e | 400 | goto end; |
9c422b5b | 401 | if ((ctx->tst_info = ts_RESP_create_tst_info(ctx, policy)) == NULL) |
0f113f3e | 402 | goto end; |
9c422b5b | 403 | if (!ts_RESP_process_extensions(ctx)) |
0f113f3e | 404 | goto end; |
9c422b5b | 405 | if (!ts_RESP_sign(ctx)) |
0f113f3e | 406 | goto end; |
0f113f3e | 407 | result = 1; |
18cd23df | 408 | |
c7235be6 | 409 | end: |
0f113f3e MC |
410 | if (!result) { |
411 | TSerr(TS_F_TS_RESP_CREATE_RESPONSE, TS_R_RESPONSE_SETUP_ERROR); | |
412 | if (ctx->response != NULL) { | |
413 | if (TS_RESP_CTX_set_status_info_cond(ctx, | |
414 | TS_STATUS_REJECTION, | |
415 | "Error during response " | |
416 | "generation.") == 0) { | |
417 | TS_RESP_free(ctx->response); | |
418 | ctx->response = NULL; | |
419 | } | |
420 | } | |
421 | } | |
422 | response = ctx->response; | |
423 | ctx->response = NULL; /* Ownership will be returned to caller. */ | |
9c422b5b | 424 | ts_RESP_CTX_cleanup(ctx); |
0f113f3e MC |
425 | return response; |
426 | } | |
c7235be6 UM |
427 | |
428 | /* Initializes the variable part of the context. */ | |
9c422b5b | 429 | static void ts_RESP_CTX_init(TS_RESP_CTX *ctx) |
0f113f3e MC |
430 | { |
431 | ctx->request = NULL; | |
432 | ctx->response = NULL; | |
433 | ctx->tst_info = NULL; | |
434 | } | |
c7235be6 UM |
435 | |
436 | /* Cleans up the variable part of the context. */ | |
9c422b5b | 437 | static void ts_RESP_CTX_cleanup(TS_RESP_CTX *ctx) |
0f113f3e MC |
438 | { |
439 | TS_REQ_free(ctx->request); | |
440 | ctx->request = NULL; | |
441 | TS_RESP_free(ctx->response); | |
442 | ctx->response = NULL; | |
443 | TS_TST_INFO_free(ctx->tst_info); | |
444 | ctx->tst_info = NULL; | |
445 | } | |
c7235be6 UM |
446 | |
447 | /* Checks the format and content of the request. */ | |
9c422b5b | 448 | static int ts_RESP_check_request(TS_RESP_CTX *ctx) |
0f113f3e MC |
449 | { |
450 | TS_REQ *request = ctx->request; | |
451 | TS_MSG_IMPRINT *msg_imprint; | |
452 | X509_ALGOR *md_alg; | |
453 | int md_alg_id; | |
454 | const ASN1_OCTET_STRING *digest; | |
ac94c8fd | 455 | const EVP_MD *md = NULL; |
0f113f3e MC |
456 | int i; |
457 | ||
0f113f3e MC |
458 | if (TS_REQ_get_version(request) != 1) { |
459 | TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION, | |
460 | "Bad request version."); | |
461 | TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_REQUEST); | |
462 | return 0; | |
463 | } | |
464 | ||
ca4a494c RS |
465 | msg_imprint = request->msg_imprint; |
466 | md_alg = msg_imprint->hash_algo; | |
0f113f3e MC |
467 | md_alg_id = OBJ_obj2nid(md_alg->algorithm); |
468 | for (i = 0; !md && i < sk_EVP_MD_num(ctx->mds); ++i) { | |
ac94c8fd | 469 | const EVP_MD *current_md = sk_EVP_MD_value(ctx->mds, i); |
0f113f3e MC |
470 | if (md_alg_id == EVP_MD_type(current_md)) |
471 | md = current_md; | |
472 | } | |
473 | if (!md) { | |
474 | TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION, | |
475 | "Message digest algorithm is " | |
476 | "not supported."); | |
477 | TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_ALG); | |
478 | return 0; | |
479 | } | |
480 | ||
0f113f3e MC |
481 | if (md_alg->parameter && ASN1_TYPE_get(md_alg->parameter) != V_ASN1_NULL) { |
482 | TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION, | |
483 | "Superfluous message digest " | |
484 | "parameter."); | |
485 | TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_ALG); | |
486 | return 0; | |
487 | } | |
ca4a494c | 488 | digest = msg_imprint->hashed_msg; |
0f113f3e MC |
489 | if (digest->length != EVP_MD_size(md)) { |
490 | TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION, | |
491 | "Bad message digest."); | |
492 | TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_DATA_FORMAT); | |
493 | return 0; | |
494 | } | |
495 | ||
496 | return 1; | |
497 | } | |
c7235be6 | 498 | |
b4e88ccb | 499 | /* Returns the TSA policy based on the requested and acceptable policies. */ |
9c422b5b | 500 | static ASN1_OBJECT *ts_RESP_get_policy(TS_RESP_CTX *ctx) |
0f113f3e | 501 | { |
ca4a494c | 502 | ASN1_OBJECT *requested = ctx->request->policy_id; |
0f113f3e MC |
503 | ASN1_OBJECT *policy = NULL; |
504 | int i; | |
505 | ||
506 | if (ctx->default_policy == NULL) { | |
507 | TSerr(TS_F_TS_RESP_GET_POLICY, TS_R_INVALID_NULL_POINTER); | |
508 | return NULL; | |
509 | } | |
0f113f3e MC |
510 | if (!requested || !OBJ_cmp(requested, ctx->default_policy)) |
511 | policy = ctx->default_policy; | |
512 | ||
513 | /* Check if the policy is acceptable. */ | |
514 | for (i = 0; !policy && i < sk_ASN1_OBJECT_num(ctx->policies); ++i) { | |
515 | ASN1_OBJECT *current = sk_ASN1_OBJECT_value(ctx->policies, i); | |
516 | if (!OBJ_cmp(requested, current)) | |
517 | policy = current; | |
518 | } | |
519 | if (!policy) { | |
520 | TSerr(TS_F_TS_RESP_GET_POLICY, TS_R_UNACCEPTABLE_POLICY); | |
521 | TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION, | |
522 | "Requested policy is not " "supported."); | |
523 | TS_RESP_CTX_add_failure_info(ctx, TS_INFO_UNACCEPTED_POLICY); | |
524 | } | |
525 | return policy; | |
526 | } | |
c7235be6 UM |
527 | |
528 | /* Creates the TS_TST_INFO object based on the settings of the context. */ | |
9c422b5b | 529 | static TS_TST_INFO *ts_RESP_create_tst_info(TS_RESP_CTX *ctx, |
0f113f3e MC |
530 | ASN1_OBJECT *policy) |
531 | { | |
532 | int result = 0; | |
533 | TS_TST_INFO *tst_info = NULL; | |
534 | ASN1_INTEGER *serial = NULL; | |
535 | ASN1_GENERALIZEDTIME *asn1_time = NULL; | |
536 | long sec, usec; | |
537 | TS_ACCURACY *accuracy = NULL; | |
538 | const ASN1_INTEGER *nonce; | |
539 | GENERAL_NAME *tsa_name = NULL; | |
540 | ||
75ebbd9a | 541 | if ((tst_info = TS_TST_INFO_new()) == NULL) |
0f113f3e MC |
542 | goto end; |
543 | if (!TS_TST_INFO_set_version(tst_info, 1)) | |
544 | goto end; | |
545 | if (!TS_TST_INFO_set_policy_id(tst_info, policy)) | |
546 | goto end; | |
547 | if (!TS_TST_INFO_set_msg_imprint(tst_info, ctx->request->msg_imprint)) | |
548 | goto end; | |
75ebbd9a | 549 | if ((serial = ctx->serial_cb(ctx, ctx->serial_cb_data)) == NULL |
0f113f3e MC |
550 | || !TS_TST_INFO_set_serial(tst_info, serial)) |
551 | goto end; | |
75ebbd9a RS |
552 | if (!ctx->time_cb(ctx, ctx->time_cb_data, &sec, &usec) |
553 | || (asn1_time = | |
554 | TS_RESP_set_genTime_with_precision(NULL, sec, usec, | |
555 | ctx->clock_precision_digits)) == NULL | |
0f113f3e MC |
556 | || !TS_TST_INFO_set_time(tst_info, asn1_time)) |
557 | goto end; | |
558 | ||
0f113f3e | 559 | if ((ctx->seconds || ctx->millis || ctx->micros) |
75ebbd9a | 560 | && (accuracy = TS_ACCURACY_new()) == NULL) |
0f113f3e | 561 | goto end; |
0f113f3e MC |
562 | if (ctx->seconds && !TS_ACCURACY_set_seconds(accuracy, ctx->seconds)) |
563 | goto end; | |
564 | if (ctx->millis && !TS_ACCURACY_set_millis(accuracy, ctx->millis)) | |
565 | goto end; | |
566 | if (ctx->micros && !TS_ACCURACY_set_micros(accuracy, ctx->micros)) | |
567 | goto end; | |
568 | if (accuracy && !TS_TST_INFO_set_accuracy(tst_info, accuracy)) | |
569 | goto end; | |
570 | ||
0f113f3e MC |
571 | if ((ctx->flags & TS_ORDERING) |
572 | && !TS_TST_INFO_set_ordering(tst_info, 1)) | |
573 | goto end; | |
574 | ||
ca4a494c | 575 | if ((nonce = ctx->request->nonce) != NULL |
0f113f3e MC |
576 | && !TS_TST_INFO_set_nonce(tst_info, nonce)) |
577 | goto end; | |
578 | ||
0f113f3e | 579 | if (ctx->flags & TS_TSA_NAME) { |
75ebbd9a | 580 | if ((tsa_name = GENERAL_NAME_new()) == NULL) |
0f113f3e MC |
581 | goto end; |
582 | tsa_name->type = GEN_DIRNAME; | |
583 | tsa_name->d.dirn = | |
a8d8e06b | 584 | X509_NAME_dup(X509_get_subject_name(ctx->signer_cert)); |
0f113f3e MC |
585 | if (!tsa_name->d.dirn) |
586 | goto end; | |
587 | if (!TS_TST_INFO_set_tsa(tst_info, tsa_name)) | |
588 | goto end; | |
589 | } | |
590 | ||
591 | result = 1; | |
c7235be6 | 592 | end: |
0f113f3e MC |
593 | if (!result) { |
594 | TS_TST_INFO_free(tst_info); | |
595 | tst_info = NULL; | |
596 | TSerr(TS_F_TS_RESP_CREATE_TST_INFO, TS_R_TST_INFO_SETUP_ERROR); | |
597 | TS_RESP_CTX_set_status_info_cond(ctx, TS_STATUS_REJECTION, | |
598 | "Error during TSTInfo " | |
599 | "generation."); | |
600 | } | |
601 | GENERAL_NAME_free(tsa_name); | |
602 | TS_ACCURACY_free(accuracy); | |
603 | ASN1_GENERALIZEDTIME_free(asn1_time); | |
604 | ASN1_INTEGER_free(serial); | |
605 | ||
606 | return tst_info; | |
607 | } | |
c7235be6 UM |
608 | |
609 | /* Processing the extensions of the request. */ | |
9c422b5b | 610 | static int ts_RESP_process_extensions(TS_RESP_CTX *ctx) |
0f113f3e | 611 | { |
ca4a494c | 612 | STACK_OF(X509_EXTENSION) *exts = ctx->request->extensions; |
0f113f3e MC |
613 | int i; |
614 | int ok = 1; | |
615 | ||
616 | for (i = 0; ok && i < sk_X509_EXTENSION_num(exts); ++i) { | |
617 | X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i); | |
618 | /* | |
18cd23df | 619 | * The last argument was previously (void *)ctx->extension_cb, |
0f113f3e MC |
620 | * but ISO C doesn't permit converting a function pointer to void *. |
621 | * For lack of better information, I'm placing a NULL there instead. | |
622 | * The callback can pick its own address out from the ctx anyway... | |
623 | */ | |
624 | ok = (*ctx->extension_cb) (ctx, ext, NULL); | |
625 | } | |
626 | ||
627 | return ok; | |
628 | } | |
c7235be6 UM |
629 | |
630 | /* Functions for signing the TS_TST_INFO structure of the context. */ | |
9c422b5b | 631 | static int ts_RESP_sign(TS_RESP_CTX *ctx) |
0f113f3e MC |
632 | { |
633 | int ret = 0; | |
634 | PKCS7 *p7 = NULL; | |
635 | PKCS7_SIGNER_INFO *si; | |
636 | STACK_OF(X509) *certs; /* Certificates to include in sc. */ | |
f0ef20bf | 637 | ESS_SIGNING_CERT_V2 *sc2 = NULL; |
0f113f3e MC |
638 | ESS_SIGNING_CERT *sc = NULL; |
639 | ASN1_OBJECT *oid; | |
640 | BIO *p7bio = NULL; | |
641 | int i; | |
642 | ||
0f113f3e MC |
643 | if (!X509_check_private_key(ctx->signer_cert, ctx->signer_key)) { |
644 | TSerr(TS_F_TS_RESP_SIGN, TS_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE); | |
645 | goto err; | |
646 | } | |
647 | ||
75ebbd9a | 648 | if ((p7 = PKCS7_new()) == NULL) { |
0f113f3e MC |
649 | TSerr(TS_F_TS_RESP_SIGN, ERR_R_MALLOC_FAILURE); |
650 | goto err; | |
651 | } | |
652 | if (!PKCS7_set_type(p7, NID_pkcs7_signed)) | |
653 | goto err; | |
0f113f3e MC |
654 | if (!ASN1_INTEGER_set(p7->d.sign->version, 3)) |
655 | goto err; | |
656 | ||
ca4a494c | 657 | if (ctx->request->cert_req) { |
0f113f3e MC |
658 | PKCS7_add_certificate(p7, ctx->signer_cert); |
659 | if (ctx->certs) { | |
660 | for (i = 0; i < sk_X509_num(ctx->certs); ++i) { | |
661 | X509 *cert = sk_X509_value(ctx->certs, i); | |
662 | PKCS7_add_certificate(p7, cert); | |
663 | } | |
664 | } | |
665 | } | |
666 | ||
75ebbd9a | 667 | if ((si = PKCS7_add_signature(p7, ctx->signer_cert, |
e20b4727 | 668 | ctx->signer_key, ctx->signer_md)) == NULL) { |
0f113f3e MC |
669 | TSerr(TS_F_TS_RESP_SIGN, TS_R_PKCS7_ADD_SIGNATURE_ERROR); |
670 | goto err; | |
671 | } | |
672 | ||
0f113f3e MC |
673 | oid = OBJ_nid2obj(NID_id_smime_ct_TSTInfo); |
674 | if (!PKCS7_add_signed_attribute(si, NID_pkcs9_contentType, | |
675 | V_ASN1_OBJECT, oid)) { | |
676 | TSerr(TS_F_TS_RESP_SIGN, TS_R_PKCS7_ADD_SIGNED_ATTR_ERROR); | |
677 | goto err; | |
678 | } | |
679 | ||
0f113f3e | 680 | certs = ctx->flags & TS_ESS_CERT_ID_CHAIN ? ctx->certs : NULL; |
d597208c RL |
681 | if (ctx->ess_cert_id_digest == NULL |
682 | || ctx->ess_cert_id_digest == EVP_sha1()) { | |
f0ef20bf MK |
683 | if ((sc = ess_SIGNING_CERT_new_init(ctx->signer_cert, certs)) == NULL) |
684 | goto err; | |
685 | ||
686 | if (!ess_add_signing_cert(si, sc)) { | |
687 | TSerr(TS_F_TS_RESP_SIGN, TS_R_ESS_ADD_SIGNING_CERT_ERROR); | |
688 | goto err; | |
689 | } | |
690 | } else { | |
691 | sc2 = ess_signing_cert_v2_new_init(ctx->ess_cert_id_digest, | |
692 | ctx->signer_cert, certs); | |
693 | if (sc2 == NULL) | |
694 | goto err; | |
695 | ||
696 | if (!ess_add_signing_cert_v2(si, sc2)) { | |
697 | TSerr(TS_F_TS_RESP_SIGN, TS_R_ESS_ADD_SIGNING_CERT_V2_ERROR); | |
698 | goto err; | |
699 | } | |
0f113f3e MC |
700 | } |
701 | ||
9c422b5b | 702 | if (!ts_TST_INFO_content_new(p7)) |
0f113f3e | 703 | goto err; |
75ebbd9a | 704 | if ((p7bio = PKCS7_dataInit(p7, NULL)) == NULL) { |
0f113f3e MC |
705 | TSerr(TS_F_TS_RESP_SIGN, ERR_R_MALLOC_FAILURE); |
706 | goto err; | |
707 | } | |
0f113f3e MC |
708 | if (!i2d_TS_TST_INFO_bio(p7bio, ctx->tst_info)) { |
709 | TSerr(TS_F_TS_RESP_SIGN, TS_R_TS_DATASIGN); | |
710 | goto err; | |
711 | } | |
0f113f3e MC |
712 | if (!PKCS7_dataFinal(p7, p7bio)) { |
713 | TSerr(TS_F_TS_RESP_SIGN, TS_R_TS_DATASIGN); | |
714 | goto err; | |
715 | } | |
0f113f3e MC |
716 | TS_RESP_set_tst_info(ctx->response, p7, ctx->tst_info); |
717 | p7 = NULL; /* Ownership is lost. */ | |
718 | ctx->tst_info = NULL; /* Ownership is lost. */ | |
719 | ||
720 | ret = 1; | |
c7235be6 | 721 | err: |
0f113f3e MC |
722 | if (!ret) |
723 | TS_RESP_CTX_set_status_info_cond(ctx, TS_STATUS_REJECTION, | |
724 | "Error during signature " | |
725 | "generation."); | |
726 | BIO_free_all(p7bio); | |
f0ef20bf | 727 | ESS_SIGNING_CERT_V2_free(sc2); |
0f113f3e MC |
728 | ESS_SIGNING_CERT_free(sc); |
729 | PKCS7_free(p7); | |
730 | return ret; | |
731 | } | |
732 | ||
9c422b5b | 733 | static ESS_SIGNING_CERT *ess_SIGNING_CERT_new_init(X509 *signcert, |
0f113f3e MC |
734 | STACK_OF(X509) *certs) |
735 | { | |
736 | ESS_CERT_ID *cid; | |
737 | ESS_SIGNING_CERT *sc = NULL; | |
738 | int i; | |
739 | ||
75ebbd9a | 740 | if ((sc = ESS_SIGNING_CERT_new()) == NULL) |
0f113f3e | 741 | goto err; |
75ebbd9a RS |
742 | if (sc->cert_ids == NULL |
743 | && (sc->cert_ids = sk_ESS_CERT_ID_new_null()) == NULL) | |
0f113f3e MC |
744 | goto err; |
745 | ||
9c422b5b | 746 | if ((cid = ess_CERT_ID_new_init(signcert, 0)) == NULL |
0f113f3e MC |
747 | || !sk_ESS_CERT_ID_push(sc->cert_ids, cid)) |
748 | goto err; | |
0f113f3e MC |
749 | for (i = 0; i < sk_X509_num(certs); ++i) { |
750 | X509 *cert = sk_X509_value(certs, i); | |
9c422b5b | 751 | if ((cid = ess_CERT_ID_new_init(cert, 1)) == NULL |
0f113f3e MC |
752 | || !sk_ESS_CERT_ID_push(sc->cert_ids, cid)) |
753 | goto err; | |
754 | } | |
755 | ||
756 | return sc; | |
757 | err: | |
758 | ESS_SIGNING_CERT_free(sc); | |
759 | TSerr(TS_F_ESS_SIGNING_CERT_NEW_INIT, ERR_R_MALLOC_FAILURE); | |
760 | return NULL; | |
761 | } | |
c7235be6 | 762 | |
9c422b5b | 763 | static ESS_CERT_ID *ess_CERT_ID_new_init(X509 *cert, int issuer_needed) |
0f113f3e MC |
764 | { |
765 | ESS_CERT_ID *cid = NULL; | |
766 | GENERAL_NAME *name = NULL; | |
7e418832 | 767 | unsigned char cert_sha1[SHA_DIGEST_LENGTH]; |
0f113f3e | 768 | |
109f8b5d | 769 | /* Call for side-effect of computing hash and caching extensions */ |
0f113f3e | 770 | X509_check_purpose(cert, -1, 0); |
75ebbd9a | 771 | if ((cid = ESS_CERT_ID_new()) == NULL) |
0f113f3e | 772 | goto err; |
7e418832 DSH |
773 | X509_digest(cert, EVP_sha1(), cert_sha1, NULL); |
774 | if (!ASN1_OCTET_STRING_set(cid->hash, cert_sha1, SHA_DIGEST_LENGTH)) | |
0f113f3e MC |
775 | goto err; |
776 | ||
777 | /* Setting the issuer/serial if requested. */ | |
778 | if (issuer_needed) { | |
75ebbd9a RS |
779 | if (cid->issuer_serial == NULL |
780 | && (cid->issuer_serial = ESS_ISSUER_SERIAL_new()) == NULL) | |
0f113f3e | 781 | goto err; |
75ebbd9a | 782 | if ((name = GENERAL_NAME_new()) == NULL) |
0f113f3e MC |
783 | goto err; |
784 | name->type = GEN_DIRNAME; | |
a8d8e06b | 785 | if ((name->d.dirn = X509_NAME_dup(X509_get_issuer_name(cert))) == NULL) |
0f113f3e MC |
786 | goto err; |
787 | if (!sk_GENERAL_NAME_push(cid->issuer_serial->issuer, name)) | |
788 | goto err; | |
789 | name = NULL; /* Ownership is lost. */ | |
0f113f3e MC |
790 | ASN1_INTEGER_free(cid->issuer_serial->serial); |
791 | if (!(cid->issuer_serial->serial = | |
a8d8e06b | 792 | ASN1_INTEGER_dup(X509_get_serialNumber(cert)))) |
0f113f3e MC |
793 | goto err; |
794 | } | |
795 | ||
796 | return cid; | |
797 | err: | |
798 | GENERAL_NAME_free(name); | |
799 | ESS_CERT_ID_free(cid); | |
800 | TSerr(TS_F_ESS_CERT_ID_NEW_INIT, ERR_R_MALLOC_FAILURE); | |
801 | return NULL; | |
802 | } | |
c7235be6 | 803 | |
9c422b5b | 804 | static int ts_TST_INFO_content_new(PKCS7 *p7) |
0f113f3e MC |
805 | { |
806 | PKCS7 *ret = NULL; | |
807 | ASN1_OCTET_STRING *octet_string = NULL; | |
808 | ||
809 | /* Create new encapsulated NID_id_smime_ct_TSTInfo content. */ | |
75ebbd9a | 810 | if ((ret = PKCS7_new()) == NULL) |
0f113f3e | 811 | goto err; |
75ebbd9a | 812 | if ((ret->d.other = ASN1_TYPE_new()) == NULL) |
0f113f3e MC |
813 | goto err; |
814 | ret->type = OBJ_nid2obj(NID_id_smime_ct_TSTInfo); | |
75ebbd9a | 815 | if ((octet_string = ASN1_OCTET_STRING_new()) == NULL) |
0f113f3e MC |
816 | goto err; |
817 | ASN1_TYPE_set(ret->d.other, V_ASN1_OCTET_STRING, octet_string); | |
818 | octet_string = NULL; | |
819 | ||
820 | /* Add encapsulated content to signed PKCS7 structure. */ | |
821 | if (!PKCS7_set_content(p7, ret)) | |
822 | goto err; | |
823 | ||
824 | return 1; | |
c7235be6 | 825 | err: |
0f113f3e MC |
826 | ASN1_OCTET_STRING_free(octet_string); |
827 | PKCS7_free(ret); | |
828 | return 0; | |
829 | } | |
c7235be6 | 830 | |
f0ef20bf | 831 | static int ess_add_signing_cert(PKCS7_SIGNER_INFO *si, ESS_SIGNING_CERT *sc) |
0f113f3e MC |
832 | { |
833 | ASN1_STRING *seq = NULL; | |
834 | unsigned char *p, *pp = NULL; | |
835 | int len; | |
836 | ||
837 | len = i2d_ESS_SIGNING_CERT(sc, NULL); | |
75ebbd9a | 838 | if ((pp = OPENSSL_malloc(len)) == NULL) { |
0f113f3e MC |
839 | TSerr(TS_F_ESS_ADD_SIGNING_CERT, ERR_R_MALLOC_FAILURE); |
840 | goto err; | |
841 | } | |
842 | p = pp; | |
843 | i2d_ESS_SIGNING_CERT(sc, &p); | |
75ebbd9a | 844 | if ((seq = ASN1_STRING_new()) == NULL || !ASN1_STRING_set(seq, pp, len)) { |
0f113f3e MC |
845 | TSerr(TS_F_ESS_ADD_SIGNING_CERT, ERR_R_MALLOC_FAILURE); |
846 | goto err; | |
847 | } | |
848 | OPENSSL_free(pp); | |
849 | pp = NULL; | |
850 | return PKCS7_add_signed_attribute(si, | |
851 | NID_id_smime_aa_signingCertificate, | |
852 | V_ASN1_SEQUENCE, seq); | |
c7235be6 | 853 | err: |
0f113f3e MC |
854 | ASN1_STRING_free(seq); |
855 | OPENSSL_free(pp); | |
856 | ||
857 | return 0; | |
858 | } | |
859 | ||
f0ef20bf MK |
860 | static ESS_SIGNING_CERT_V2 *ess_signing_cert_v2_new_init(const EVP_MD *hash_alg, |
861 | X509 *signcert, | |
862 | STACK_OF(X509) *certs) | |
863 | { | |
864 | ESS_CERT_ID_V2 *cid = NULL; | |
865 | ESS_SIGNING_CERT_V2 *sc = NULL; | |
866 | int i; | |
867 | ||
868 | if ((sc = ESS_SIGNING_CERT_V2_new()) == NULL) | |
869 | goto err; | |
870 | if ((cid = ess_cert_id_v2_new_init(hash_alg, signcert, 0)) == NULL) | |
871 | goto err; | |
872 | if (!sk_ESS_CERT_ID_V2_push(sc->cert_ids, cid)) | |
873 | goto err; | |
874 | cid = NULL; | |
875 | ||
876 | for (i = 0; i < sk_X509_num(certs); ++i) { | |
877 | X509 *cert = sk_X509_value(certs, i); | |
878 | ||
879 | if ((cid = ess_cert_id_v2_new_init(hash_alg, cert, 1)) == NULL) | |
880 | goto err; | |
881 | if (!sk_ESS_CERT_ID_V2_push(sc->cert_ids, cid)) | |
882 | goto err; | |
883 | cid = NULL; | |
884 | } | |
885 | ||
886 | return sc; | |
887 | err: | |
888 | ESS_SIGNING_CERT_V2_free(sc); | |
889 | ESS_CERT_ID_V2_free(cid); | |
890 | TSerr(TS_F_ESS_SIGNING_CERT_V2_NEW_INIT, ERR_R_MALLOC_FAILURE); | |
891 | return NULL; | |
892 | } | |
893 | ||
894 | static ESS_CERT_ID_V2 *ess_cert_id_v2_new_init(const EVP_MD *hash_alg, | |
895 | X509 *cert, int issuer_needed) | |
896 | { | |
897 | ESS_CERT_ID_V2 *cid = NULL; | |
898 | GENERAL_NAME *name = NULL; | |
899 | unsigned char hash[EVP_MAX_MD_SIZE]; | |
900 | unsigned int hash_len = sizeof(hash); | |
901 | X509_ALGOR *alg = NULL; | |
902 | ||
903 | memset(hash, 0, sizeof(hash)); | |
904 | ||
905 | if ((cid = ESS_CERT_ID_V2_new()) == NULL) | |
906 | goto err; | |
907 | ||
908 | if (hash_alg != EVP_sha256()) { | |
909 | alg = X509_ALGOR_new(); | |
910 | if (alg == NULL) | |
911 | goto err; | |
912 | X509_ALGOR_set_md(alg, hash_alg); | |
913 | if (alg->algorithm == NULL) | |
914 | goto err; | |
915 | cid->hash_alg = alg; | |
916 | alg = NULL; | |
917 | } else { | |
918 | cid->hash_alg = NULL; | |
919 | } | |
920 | ||
921 | if (!X509_digest(cert, hash_alg, hash, &hash_len)) | |
922 | goto err; | |
923 | ||
924 | if (!ASN1_OCTET_STRING_set(cid->hash, hash, hash_len)) | |
925 | goto err; | |
926 | ||
927 | if (issuer_needed) { | |
928 | if ((cid->issuer_serial = ESS_ISSUER_SERIAL_new()) == NULL) | |
929 | goto err; | |
930 | if ((name = GENERAL_NAME_new()) == NULL) | |
931 | goto err; | |
932 | name->type = GEN_DIRNAME; | |
933 | if ((name->d.dirn = X509_NAME_dup(X509_get_issuer_name(cert))) == NULL) | |
934 | goto err; | |
935 | if (!sk_GENERAL_NAME_push(cid->issuer_serial->issuer, name)) | |
936 | goto err; | |
937 | name = NULL; /* Ownership is lost. */ | |
938 | ASN1_INTEGER_free(cid->issuer_serial->serial); | |
939 | cid->issuer_serial->serial = | |
940 | ASN1_INTEGER_dup(X509_get_serialNumber(cert)); | |
941 | if (cid->issuer_serial->serial == NULL) | |
942 | goto err; | |
943 | } | |
944 | ||
945 | return cid; | |
946 | err: | |
947 | X509_ALGOR_free(alg); | |
948 | GENERAL_NAME_free(name); | |
949 | ESS_CERT_ID_V2_free(cid); | |
950 | TSerr(TS_F_ESS_CERT_ID_V2_NEW_INIT, ERR_R_MALLOC_FAILURE); | |
951 | return NULL; | |
952 | } | |
953 | ||
954 | static int ess_add_signing_cert_v2(PKCS7_SIGNER_INFO *si, | |
955 | ESS_SIGNING_CERT_V2 *sc) | |
956 | { | |
957 | ASN1_STRING *seq = NULL; | |
958 | unsigned char *p, *pp = NULL; | |
959 | int len = i2d_ESS_SIGNING_CERT_V2(sc, NULL); | |
960 | ||
961 | if ((pp = OPENSSL_malloc(len)) == NULL) { | |
962 | TSerr(TS_F_ESS_ADD_SIGNING_CERT_V2, ERR_R_MALLOC_FAILURE); | |
963 | goto err; | |
964 | } | |
965 | ||
966 | p = pp; | |
967 | i2d_ESS_SIGNING_CERT_V2(sc, &p); | |
968 | if ((seq = ASN1_STRING_new()) == NULL || !ASN1_STRING_set(seq, pp, len)) { | |
969 | TSerr(TS_F_ESS_ADD_SIGNING_CERT_V2, ERR_R_MALLOC_FAILURE); | |
970 | goto err; | |
971 | } | |
972 | ||
973 | OPENSSL_free(pp); | |
974 | pp = NULL; | |
975 | return PKCS7_add_signed_attribute(si, | |
976 | NID_id_smime_aa_signingCertificateV2, | |
977 | V_ASN1_SEQUENCE, seq); | |
978 | err: | |
979 | ASN1_STRING_free(seq); | |
980 | OPENSSL_free(pp); | |
981 | return 0; | |
982 | } | |
983 | ||
984 | static ASN1_GENERALIZEDTIME *TS_RESP_set_genTime_with_precision( | |
985 | ASN1_GENERALIZEDTIME *asn1_time, long sec, long usec, | |
986 | unsigned precision) | |
0f113f3e MC |
987 | { |
988 | time_t time_sec = (time_t)sec; | |
989 | struct tm *tm = NULL; | |
990 | char genTime_str[17 + TS_MAX_CLOCK_PRECISION_DIGITS]; | |
991 | char *p = genTime_str; | |
992 | char *p_end = genTime_str + sizeof(genTime_str); | |
993 | ||
994 | if (precision > TS_MAX_CLOCK_PRECISION_DIGITS) | |
995 | goto err; | |
996 | ||
75ebbd9a | 997 | if ((tm = gmtime(&time_sec)) == NULL) |
0f113f3e MC |
998 | goto err; |
999 | ||
1000 | /* | |
1001 | * Put "genTime_str" in GeneralizedTime format. We work around the | |
1002 | * restrictions imposed by rfc3280 (i.e. "GeneralizedTime values MUST | |
1003 | * NOT include fractional seconds") and OpenSSL related functions to | |
1004 | * meet the rfc3161 requirement: "GeneralizedTime syntax can include | |
1005 | * fraction-of-second details". | |
1006 | */ | |
1007 | p += BIO_snprintf(p, p_end - p, | |
1008 | "%04d%02d%02d%02d%02d%02d", | |
1009 | tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, | |
1010 | tm->tm_hour, tm->tm_min, tm->tm_sec); | |
1011 | if (precision > 0) { | |
0f113f3e | 1012 | BIO_snprintf(p, 2 + precision, ".%06ld", usec); |
0f113f3e MC |
1013 | p += strlen(p); |
1014 | ||
1015 | /* | |
1016 | * To make things a bit harder, X.690 | ISO/IEC 8825-1 provides the | |
1017 | * following restrictions for a DER-encoding, which OpenSSL | |
1018 | * (specifically ASN1_GENERALIZEDTIME_check() function) doesn't | |
1019 | * support: "The encoding MUST terminate with a "Z" (which means | |
1020 | * "Zulu" time). The decimal point element, if present, MUST be the | |
1021 | * point option ".". The fractional-seconds elements, if present, | |
1022 | * MUST omit all trailing 0's; if the elements correspond to 0, they | |
1023 | * MUST be wholly omitted, and the decimal point element also MUST be | |
1024 | * omitted." | |
1025 | */ | |
1026 | /* | |
1027 | * Remove trailing zeros. The dot guarantees the exit condition of | |
1028 | * this loop even if all the digits are zero. | |
1029 | */ | |
1030 | while (*--p == '0') | |
18cd23df | 1031 | continue; |
0f113f3e MC |
1032 | if (*p != '.') |
1033 | ++p; | |
1034 | } | |
0f113f3e MC |
1035 | *p++ = 'Z'; |
1036 | *p++ = '\0'; | |
1037 | ||
75ebbd9a RS |
1038 | if (asn1_time == NULL |
1039 | && (asn1_time = ASN1_GENERALIZEDTIME_new()) == NULL) | |
0f113f3e MC |
1040 | goto err; |
1041 | if (!ASN1_GENERALIZEDTIME_set_string(asn1_time, genTime_str)) { | |
1042 | ASN1_GENERALIZEDTIME_free(asn1_time); | |
1043 | goto err; | |
1044 | } | |
0f113f3e | 1045 | return asn1_time; |
18cd23df | 1046 | |
c7235be6 | 1047 | err: |
0f113f3e MC |
1048 | TSerr(TS_F_TS_RESP_SET_GENTIME_WITH_PRECISION, TS_R_COULD_NOT_SET_TIME); |
1049 | return NULL; | |
1050 | } | |
f0ef20bf MK |
1051 | |
1052 | int TS_RESP_CTX_set_ess_cert_id_digest(TS_RESP_CTX *ctx, const EVP_MD *md) | |
1053 | { | |
1054 | ctx->ess_cert_id_digest = md; | |
1055 | return 1; | |
1056 | } |