2 * Copyright 2006-2020 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (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
10 /* We need to use some engine deprecated APIs */
11 #define OPENSSL_SUPPRESS_DEPRECATED
15 #include <openssl/crypto.h>
16 #include "internal/cryptlib.h"
17 #include <openssl/pem.h>
18 #include <openssl/engine.h>
19 #include <openssl/ts.h>
21 DEFINE_STACK_OF(CONF_VALUE)
23 /* Macro definitions for the configuration file. */
24 #define BASE_SECTION "tsa"
25 #define ENV_DEFAULT_TSA "default_tsa"
26 #define ENV_SERIAL "serial"
27 #define ENV_CRYPTO_DEVICE "crypto_device"
28 #define ENV_SIGNER_CERT "signer_cert"
29 #define ENV_CERTS "certs"
30 #define ENV_SIGNER_KEY "signer_key"
31 #define ENV_SIGNER_DIGEST "signer_digest"
32 #define ENV_DEFAULT_POLICY "default_policy"
33 #define ENV_OTHER_POLICIES "other_policies"
34 #define ENV_DIGESTS "digests"
35 #define ENV_ACCURACY "accuracy"
36 #define ENV_ORDERING "ordering"
37 #define ENV_TSA_NAME "tsa_name"
38 #define ENV_ESS_CERT_ID_CHAIN "ess_cert_id_chain"
39 #define ENV_VALUE_SECS "secs"
40 #define ENV_VALUE_MILLISECS "millisecs"
41 #define ENV_VALUE_MICROSECS "microsecs"
42 #define ENV_CLOCK_PRECISION_DIGITS "clock_precision_digits"
43 #define ENV_VALUE_YES "yes"
44 #define ENV_VALUE_NO "no"
45 #define ENV_ESS_CERT_ID_ALG "ess_cert_id_alg"
47 /* Function definitions for certificate and key loading. */
49 X509 *TS_CONF_load_cert(const char *file)
54 if ((cert = BIO_new_file(file, "r")) == NULL)
56 x = PEM_read_bio_X509_AUX(cert, NULL, NULL, NULL);
59 TSerr(TS_F_TS_CONF_LOAD_CERT, TS_R_CANNOT_LOAD_CERT);
64 STACK_OF(X509) *TS_CONF_load_certs(const char *file)
67 STACK_OF(X509) *othercerts = NULL;
68 STACK_OF(X509_INFO) *allcerts = NULL;
71 if ((certs = BIO_new_file(file, "r")) == NULL)
73 if ((othercerts = sk_X509_new_null()) == NULL)
76 allcerts = PEM_X509_INFO_read_bio(certs, NULL, NULL, NULL);
77 for (i = 0; i < sk_X509_INFO_num(allcerts); i++) {
78 X509_INFO *xi = sk_X509_INFO_value(allcerts, i);
80 if (xi->x509 != NULL) {
81 if (!X509_add_cert(othercerts, xi->x509, X509_ADD_FLAG_DEFAULT)) {
82 sk_X509_pop_free(othercerts, X509_free);
90 if (othercerts == NULL)
91 TSerr(TS_F_TS_CONF_LOAD_CERTS, TS_R_CANNOT_LOAD_CERT);
92 sk_X509_INFO_pop_free(allcerts, X509_INFO_free);
97 EVP_PKEY *TS_CONF_load_key(const char *file, const char *pass)
100 EVP_PKEY *pkey = NULL;
102 if ((key = BIO_new_file(file, "r")) == NULL)
104 pkey = PEM_read_bio_PrivateKey(key, NULL, NULL, (char *)pass);
107 TSerr(TS_F_TS_CONF_LOAD_KEY, TS_R_CANNOT_LOAD_KEY);
112 /* Function definitions for handling configuration options. */
114 static void ts_CONF_lookup_fail(const char *name, const char *tag)
116 TSerr(TS_F_TS_CONF_LOOKUP_FAIL, TS_R_VAR_LOOKUP_FAILURE);
117 ERR_add_error_data(3, name, "::", tag);
120 static void ts_CONF_invalid(const char *name, const char *tag)
122 TSerr(TS_F_TS_CONF_INVALID, TS_R_VAR_BAD_VALUE);
123 ERR_add_error_data(3, name, "::", tag);
126 const char *TS_CONF_get_tsa_section(CONF *conf, const char *section)
129 section = NCONF_get_string(conf, BASE_SECTION, ENV_DEFAULT_TSA);
131 ts_CONF_lookup_fail(BASE_SECTION, ENV_DEFAULT_TSA);
136 int TS_CONF_set_serial(CONF *conf, const char *section, TS_serial_cb cb,
140 char *serial = NCONF_get_string(conf, section, ENV_SERIAL);
142 ts_CONF_lookup_fail(section, ENV_SERIAL);
145 TS_RESP_CTX_set_serial_cb(ctx, cb, serial);
152 #ifndef OPENSSL_NO_ENGINE
154 int TS_CONF_set_crypto_device(CONF *conf, const char *section,
160 device = NCONF_get_string(conf, section, ENV_CRYPTO_DEVICE);
162 if (device && !TS_CONF_set_default_engine(device)) {
163 ts_CONF_invalid(section, ENV_CRYPTO_DEVICE);
171 int TS_CONF_set_default_engine(const char *name)
176 if (strcmp(name, "builtin") == 0)
179 if ((e = ENGINE_by_id(name)) == NULL)
181 if (strcmp(name, "chil") == 0)
182 ENGINE_ctrl(e, ENGINE_CTRL_CHIL_SET_FORKCHECK, 1, 0, 0);
183 if (!ENGINE_set_default(e, ENGINE_METHOD_ALL))
189 TSerr(TS_F_TS_CONF_SET_DEFAULT_ENGINE, TS_R_COULD_NOT_SET_ENGINE);
190 ERR_add_error_data(2, "engine:", name);
198 int TS_CONF_set_signer_cert(CONF *conf, const char *section,
199 const char *cert, TS_RESP_CTX *ctx)
202 X509 *cert_obj = NULL;
205 cert = NCONF_get_string(conf, section, ENV_SIGNER_CERT);
207 ts_CONF_lookup_fail(section, ENV_SIGNER_CERT);
211 if ((cert_obj = TS_CONF_load_cert(cert)) == NULL)
213 if (!TS_RESP_CTX_set_signer_cert(ctx, cert_obj))
222 int TS_CONF_set_certs(CONF *conf, const char *section, const char *certs,
226 STACK_OF(X509) *certs_obj = NULL;
229 /* Certificate chain is optional. */
230 if ((certs = NCONF_get_string(conf, section, ENV_CERTS)) == NULL)
233 if ((certs_obj = TS_CONF_load_certs(certs)) == NULL)
235 if (!TS_RESP_CTX_set_certs(ctx, certs_obj))
240 sk_X509_pop_free(certs_obj, X509_free);
244 int TS_CONF_set_signer_key(CONF *conf, const char *section,
245 const char *key, const char *pass,
249 EVP_PKEY *key_obj = NULL;
251 key = NCONF_get_string(conf, section, ENV_SIGNER_KEY);
253 ts_CONF_lookup_fail(section, ENV_SIGNER_KEY);
256 if ((key_obj = TS_CONF_load_key(key, pass)) == NULL)
258 if (!TS_RESP_CTX_set_signer_key(ctx, key_obj))
263 EVP_PKEY_free(key_obj);
267 int TS_CONF_set_signer_digest(CONF *conf, const char *section,
268 const char *md, TS_RESP_CTX *ctx)
271 const EVP_MD *sign_md = NULL;
273 md = NCONF_get_string(conf, section, ENV_SIGNER_DIGEST);
275 ts_CONF_lookup_fail(section, ENV_SIGNER_DIGEST);
278 sign_md = EVP_get_digestbyname(md);
279 if (sign_md == NULL) {
280 ts_CONF_invalid(section, ENV_SIGNER_DIGEST);
283 if (!TS_RESP_CTX_set_signer_digest(ctx, sign_md))
291 int TS_CONF_set_def_policy(CONF *conf, const char *section,
292 const char *policy, TS_RESP_CTX *ctx)
295 ASN1_OBJECT *policy_obj = NULL;
298 policy = NCONF_get_string(conf, section, ENV_DEFAULT_POLICY);
299 if (policy == NULL) {
300 ts_CONF_lookup_fail(section, ENV_DEFAULT_POLICY);
303 if ((policy_obj = OBJ_txt2obj(policy, 0)) == NULL) {
304 ts_CONF_invalid(section, ENV_DEFAULT_POLICY);
307 if (!TS_RESP_CTX_set_def_policy(ctx, policy_obj))
312 ASN1_OBJECT_free(policy_obj);
316 int TS_CONF_set_policies(CONF *conf, const char *section, TS_RESP_CTX *ctx)
320 STACK_OF(CONF_VALUE) *list = NULL;
321 char *policies = NCONF_get_string(conf, section, ENV_OTHER_POLICIES);
323 /* If no other policy is specified, that's fine. */
324 if (policies && (list = X509V3_parse_list(policies)) == NULL) {
325 ts_CONF_invalid(section, ENV_OTHER_POLICIES);
328 for (i = 0; i < sk_CONF_VALUE_num(list); ++i) {
329 CONF_VALUE *val = sk_CONF_VALUE_value(list, i);
330 const char *extval = val->value ? val->value : val->name;
333 if ((objtmp = OBJ_txt2obj(extval, 0)) == NULL) {
334 ts_CONF_invalid(section, ENV_OTHER_POLICIES);
337 if (!TS_RESP_CTX_add_policy(ctx, objtmp))
339 ASN1_OBJECT_free(objtmp);
344 sk_CONF_VALUE_pop_free(list, X509V3_conf_free);
348 int TS_CONF_set_digests(CONF *conf, const char *section, TS_RESP_CTX *ctx)
352 STACK_OF(CONF_VALUE) *list = NULL;
353 char *digests = NCONF_get_string(conf, section, ENV_DIGESTS);
355 if (digests == NULL) {
356 ts_CONF_lookup_fail(section, ENV_DIGESTS);
359 if ((list = X509V3_parse_list(digests)) == NULL) {
360 ts_CONF_invalid(section, ENV_DIGESTS);
363 if (sk_CONF_VALUE_num(list) == 0) {
364 ts_CONF_invalid(section, ENV_DIGESTS);
367 for (i = 0; i < sk_CONF_VALUE_num(list); ++i) {
368 CONF_VALUE *val = sk_CONF_VALUE_value(list, i);
369 const char *extval = val->value ? val->value : val->name;
372 if ((md = EVP_get_digestbyname(extval)) == NULL) {
373 ts_CONF_invalid(section, ENV_DIGESTS);
376 if (!TS_RESP_CTX_add_md(ctx, md))
382 sk_CONF_VALUE_pop_free(list, X509V3_conf_free);
386 int TS_CONF_set_accuracy(CONF *conf, const char *section, TS_RESP_CTX *ctx)
390 int secs = 0, millis = 0, micros = 0;
391 STACK_OF(CONF_VALUE) *list = NULL;
392 char *accuracy = NCONF_get_string(conf, section, ENV_ACCURACY);
394 if (accuracy && (list = X509V3_parse_list(accuracy)) == NULL) {
395 ts_CONF_invalid(section, ENV_ACCURACY);
398 for (i = 0; i < sk_CONF_VALUE_num(list); ++i) {
399 CONF_VALUE *val = sk_CONF_VALUE_value(list, i);
400 if (strcmp(val->name, ENV_VALUE_SECS) == 0) {
402 secs = atoi(val->value);
403 } else if (strcmp(val->name, ENV_VALUE_MILLISECS) == 0) {
405 millis = atoi(val->value);
406 } else if (strcmp(val->name, ENV_VALUE_MICROSECS) == 0) {
408 micros = atoi(val->value);
410 ts_CONF_invalid(section, ENV_ACCURACY);
414 if (!TS_RESP_CTX_set_accuracy(ctx, secs, millis, micros))
419 sk_CONF_VALUE_pop_free(list, X509V3_conf_free);
423 int TS_CONF_set_clock_precision_digits(CONF *conf, const char *section,
430 * If not specified, set the default value to 0, i.e. sec precision
432 if (!NCONF_get_number_e(conf, section, ENV_CLOCK_PRECISION_DIGITS,
435 if (digits < 0 || digits > TS_MAX_CLOCK_PRECISION_DIGITS) {
436 ts_CONF_invalid(section, ENV_CLOCK_PRECISION_DIGITS);
440 if (!TS_RESP_CTX_set_clock_precision_digits(ctx, digits))
448 static int ts_CONF_add_flag(CONF *conf, const char *section,
449 const char *field, int flag, TS_RESP_CTX *ctx)
451 const char *value = NCONF_get_string(conf, section, field);
454 if (strcmp(value, ENV_VALUE_YES) == 0)
455 TS_RESP_CTX_add_flags(ctx, flag);
456 else if (strcmp(value, ENV_VALUE_NO) != 0) {
457 ts_CONF_invalid(section, field);
465 int TS_CONF_set_ordering(CONF *conf, const char *section, TS_RESP_CTX *ctx)
467 return ts_CONF_add_flag(conf, section, ENV_ORDERING, TS_ORDERING, ctx);
470 int TS_CONF_set_tsa_name(CONF *conf, const char *section, TS_RESP_CTX *ctx)
472 return ts_CONF_add_flag(conf, section, ENV_TSA_NAME, TS_TSA_NAME, ctx);
475 int TS_CONF_set_ess_cert_id_chain(CONF *conf, const char *section,
478 return ts_CONF_add_flag(conf, section, ENV_ESS_CERT_ID_CHAIN,
479 TS_ESS_CERT_ID_CHAIN, ctx);
482 int TS_CONF_set_ess_cert_id_digest(CONF *conf, const char *section,
486 const EVP_MD *cert_md = NULL;
487 const char *md = NCONF_get_string(conf, section, ENV_ESS_CERT_ID_ALG);
492 cert_md = EVP_get_digestbyname(md);
493 if (cert_md == NULL) {
494 ts_CONF_invalid(section, ENV_ESS_CERT_ID_ALG);
498 if (!TS_RESP_CTX_set_ess_cert_id_digest(ctx, cert_md))