diff options
Diffstat (limited to 'crypto/ts/ts_conf.c')
| -rw-r--r-- | crypto/ts/ts_conf.c | 507 |
1 files changed, 507 insertions, 0 deletions
diff --git a/crypto/ts/ts_conf.c b/crypto/ts/ts_conf.c new file mode 100644 index 000000000..c39be76f2 --- /dev/null +++ b/crypto/ts/ts_conf.c @@ -0,0 +1,507 @@ +/* crypto/ts/ts_conf.c */ +/* Written by Zoltan Glozik (zglozik@stones.com) for the OpenSSL + * project 2002. + */ +/* ==================================================================== + * Copyright (c) 2006 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include <string.h> + +#include <openssl/crypto.h> +#include "cryptlib.h" +#include <openssl/pem.h> +#ifndef OPENSSL_NO_ENGINE +#include <openssl/engine.h> +#endif +#include <openssl/ts.h> + +/* Macro definitions for the configuration file. */ + +#define BASE_SECTION "tsa" +#define ENV_DEFAULT_TSA "default_tsa" +#define ENV_SERIAL "serial" +#define ENV_CRYPTO_DEVICE "crypto_device" +#define ENV_SIGNER_CERT "signer_cert" +#define ENV_CERTS "certs" +#define ENV_SIGNER_KEY "signer_key" +#define ENV_DEFAULT_POLICY "default_policy" +#define ENV_OTHER_POLICIES "other_policies" +#define ENV_DIGESTS "digests" +#define ENV_ACCURACY "accuracy" +#define ENV_ORDERING "ordering" +#define ENV_TSA_NAME "tsa_name" +#define ENV_ESS_CERT_ID_CHAIN "ess_cert_id_chain" +#define ENV_VALUE_SECS "secs" +#define ENV_VALUE_MILLISECS "millisecs" +#define ENV_VALUE_MICROSECS "microsecs" +#define ENV_CLOCK_PRECISION_DIGITS "clock_precision_digits" +#define ENV_VALUE_YES "yes" +#define ENV_VALUE_NO "no" + +/* Function definitions for certificate and key loading. */ + +X509 *TS_CONF_load_cert(const char *file) + { + BIO *cert = NULL; + X509 *x = NULL; + + if ((cert = BIO_new_file(file, "r")) == NULL) goto end; + x = PEM_read_bio_X509_AUX(cert, NULL, NULL, NULL); +end: + if (x == NULL) + fprintf(stderr, "unable to load certificate: %s\n", file); + BIO_free(cert); + return x; + } + +STACK_OF(X509) *TS_CONF_load_certs(const char *file) + { + BIO *certs = NULL; + STACK_OF(X509) *othercerts = NULL; + STACK_OF(X509_INFO) *allcerts = NULL; + int i; + + if (!(certs = BIO_new_file(file, "r"))) goto end; + + if (!(othercerts = sk_X509_new_null())) goto end; + allcerts = PEM_X509_INFO_read_bio(certs, NULL, NULL, NULL); + for(i = 0; i < sk_X509_INFO_num(allcerts); i++) + { + X509_INFO *xi = sk_X509_INFO_value(allcerts, i); + if (xi->x509) + { + sk_X509_push(othercerts, xi->x509); + xi->x509 = NULL; + } + } +end: + if (othercerts == NULL) + fprintf(stderr, "unable to load certificates: %s\n", file); + sk_X509_INFO_pop_free(allcerts, X509_INFO_free); + BIO_free(certs); + return othercerts; + } + +EVP_PKEY *TS_CONF_load_key(const char *file, const char *pass) + { + BIO *key = NULL; + EVP_PKEY *pkey = NULL; + + if (!(key = BIO_new_file(file, "r"))) goto end; + pkey = PEM_read_bio_PrivateKey(key, NULL, NULL, (char *) pass); + end: + if (pkey == NULL) + fprintf(stderr, "unable to load private key: %s\n", file); + BIO_free(key); + return pkey; + } + +/* Function definitions for handling configuration options. */ + +static void TS_CONF_lookup_fail(const char *name, const char *tag) + { + fprintf(stderr, "variable lookup failed for %s::%s\n", name, tag); + } + +static void TS_CONF_invalid(const char *name, const char *tag) + { + fprintf(stderr, "invalid variable value for %s::%s\n", name, tag); + } + +const char *TS_CONF_get_tsa_section(CONF *conf, const char *section) + { + if (!section) + { + section = NCONF_get_string(conf, BASE_SECTION, ENV_DEFAULT_TSA); + if (!section) + TS_CONF_lookup_fail(BASE_SECTION, ENV_DEFAULT_TSA); + } + return section; + } + +int TS_CONF_set_serial(CONF *conf, const char *section, TS_serial_cb cb, + TS_RESP_CTX *ctx) + { + int ret = 0; + char *serial = NCONF_get_string(conf, section, ENV_SERIAL); + if (!serial) + { + TS_CONF_lookup_fail(section, ENV_SERIAL); + goto err; + } + TS_RESP_CTX_set_serial_cb(ctx, cb, serial); + + ret = 1; + err: + return ret; + } + +#ifndef OPENSSL_NO_ENGINE + +int TS_CONF_set_crypto_device(CONF *conf, const char *section, + const char *device) + { + int ret = 0; + + if (!device) + device = NCONF_get_string(conf, section, + ENV_CRYPTO_DEVICE); + + if (device && !TS_CONF_set_default_engine(device)) + { + TS_CONF_invalid(section, ENV_CRYPTO_DEVICE); + goto err; + } + ret = 1; + err: + return ret; + } + +int TS_CONF_set_default_engine(const char *name) + { + ENGINE *e = NULL; + int ret = 0; + + /* Leave the default if builtin specified. */ + if (strcmp(name, "builtin") == 0) return 1; + + if (!(e = ENGINE_by_id(name))) goto err; + /* Enable the use of the NCipher HSM for forked children. */ + if (strcmp(name, "chil") == 0) + ENGINE_ctrl(e, ENGINE_CTRL_CHIL_SET_FORKCHECK, 1, 0, 0); + /* All the operations are going to be carried out by the engine. */ + if (!ENGINE_set_default(e, ENGINE_METHOD_ALL)) goto err; + ret = 1; + err: + if (!ret) + { + TSerr(TS_F_TS_CONF_SET_DEFAULT_ENGINE, + TS_R_COULD_NOT_SET_ENGINE); + ERR_add_error_data(2, "engine:", name); + } + if (e) ENGINE_free(e); + return ret; + } + +#endif + +int TS_CONF_set_signer_cert(CONF *conf, const char *section, + const char *cert, TS_RESP_CTX *ctx) + { + int ret = 0; + X509 *cert_obj = NULL; + if (!cert) + cert = NCONF_get_string(conf, section, ENV_SIGNER_CERT); + if (!cert) + { + TS_CONF_lookup_fail(section, ENV_SIGNER_CERT); + goto err; + } + if (!(cert_obj = TS_CONF_load_cert(cert))) + goto err; + if (!TS_RESP_CTX_set_signer_cert(ctx, cert_obj)) + goto err; + + ret = 1; + err: + X509_free(cert_obj); + return ret; + } + +int TS_CONF_set_certs(CONF *conf, const char *section, const char *certs, + TS_RESP_CTX *ctx) + { + int ret = 0; + STACK_OF(X509) *certs_obj = NULL; + if (!certs) + certs = NCONF_get_string(conf, section, ENV_CERTS); + /* Certificate chain is optional. */ + if (!certs) goto end; + if (!(certs_obj = TS_CONF_load_certs(certs))) goto err; + if (!TS_RESP_CTX_set_certs(ctx, certs_obj)) goto err; + end: + ret = 1; + err: + sk_X509_pop_free(certs_obj, X509_free); + return ret; + } + +int TS_CONF_set_signer_key(CONF *conf, const char *section, + const char *key, const char *pass, + TS_RESP_CTX *ctx) + { + int ret = 0; + EVP_PKEY *key_obj = NULL; + if (!key) + key = NCONF_get_string(conf, section, ENV_SIGNER_KEY); + if (!key) + { + TS_CONF_lookup_fail(section, ENV_SIGNER_KEY); + goto err; + } + if (!(key_obj = TS_CONF_load_key(key, pass))) goto err; + if (!TS_RESP_CTX_set_signer_key(ctx, key_obj)) goto err; + + ret = 1; + err: + EVP_PKEY_free(key_obj); + return ret; + } + +int TS_CONF_set_def_policy(CONF *conf, const char *section, + const char *policy, TS_RESP_CTX *ctx) + { + int ret = 0; + ASN1_OBJECT *policy_obj = NULL; + if (!policy) + policy = NCONF_get_string(conf, section, + ENV_DEFAULT_POLICY); + if (!policy) + { + TS_CONF_lookup_fail(section, ENV_DEFAULT_POLICY); + goto err; + } + if (!(policy_obj = OBJ_txt2obj(policy, 0))) + { + TS_CONF_invalid(section, ENV_DEFAULT_POLICY); + goto err; + } + if (!TS_RESP_CTX_set_def_policy(ctx, policy_obj)) + goto err; + + ret = 1; + err: + ASN1_OBJECT_free(policy_obj); + return ret; + } + +int TS_CONF_set_policies(CONF *conf, const char *section, + TS_RESP_CTX *ctx) + { + int ret = 0; + int i; + STACK_OF(CONF_VALUE) *list = NULL; + char *policies = NCONF_get_string(conf, section, + ENV_OTHER_POLICIES); + /* If no other policy is specified, that's fine. */ + if (policies && !(list = X509V3_parse_list(policies))) + { + TS_CONF_invalid(section, ENV_OTHER_POLICIES); + goto err; + } + for (i = 0; i < sk_CONF_VALUE_num(list); ++i) + { + CONF_VALUE *val = sk_CONF_VALUE_value(list, i); + const char *extval = val->value ? val->value : val->name; + ASN1_OBJECT *objtmp; + if (!(objtmp = OBJ_txt2obj(extval, 0))) + { + TS_CONF_invalid(section, ENV_OTHER_POLICIES); + goto err; + } + if (!TS_RESP_CTX_add_policy(ctx, objtmp)) + goto err; + ASN1_OBJECT_free(objtmp); + } + + ret = 1; + err: + sk_CONF_VALUE_pop_free(list, X509V3_conf_free); + return ret; + } + +int TS_CONF_set_digests(CONF *conf, const char *section, + TS_RESP_CTX *ctx) + { + int ret = 0; + int i; + STACK_OF(CONF_VALUE) *list = NULL; + char *digests = NCONF_get_string(conf, section, ENV_DIGESTS); + if (!digests) + { + TS_CONF_lookup_fail(section, ENV_DIGESTS); + goto err; + } + if (!(list = X509V3_parse_list(digests))) + { + TS_CONF_invalid(section, ENV_DIGESTS); + goto err; + } + if (sk_CONF_VALUE_num(list) == 0) + { + TS_CONF_invalid(section, ENV_DIGESTS); + goto err; + } + for (i = 0; i < sk_CONF_VALUE_num(list); ++i) + { + CONF_VALUE *val = sk_CONF_VALUE_value(list, i); + const char *extval = val->value ? val->value : val->name; + const EVP_MD *md; + if (!(md = EVP_get_digestbyname(extval))) + { + TS_CONF_invalid(section, ENV_DIGESTS); + goto err; + } + if (!TS_RESP_CTX_add_md(ctx, md)) + goto err; + } + + ret = 1; + err: + sk_CONF_VALUE_pop_free(list, X509V3_conf_free); + return ret; + } + +int TS_CONF_set_accuracy(CONF *conf, const char *section, TS_RESP_CTX *ctx) + { + int ret = 0; + int i; + int secs = 0, millis = 0, micros = 0; + STACK_OF(CONF_VALUE) *list = NULL; + char *accuracy = NCONF_get_string(conf, section, ENV_ACCURACY); + + if (accuracy && !(list = X509V3_parse_list(accuracy))) + { + TS_CONF_invalid(section, ENV_ACCURACY); + goto err; + } + for (i = 0; i < sk_CONF_VALUE_num(list); ++i) + { + CONF_VALUE *val = sk_CONF_VALUE_value(list, i); + if (strcmp(val->name, ENV_VALUE_SECS) == 0) + { + if (val->value) secs = atoi(val->value); + } + else if (strcmp(val->name, ENV_VALUE_MILLISECS) == 0) + { + if (val->value) millis = atoi(val->value); + } + else if (strcmp(val->name, ENV_VALUE_MICROSECS) == 0) + { + if (val->value) micros = atoi(val->value); + } + else + { + TS_CONF_invalid(section, ENV_ACCURACY); + goto err; + } + } + if (!TS_RESP_CTX_set_accuracy(ctx, secs, millis, micros)) + goto err; + + ret = 1; + err: + sk_CONF_VALUE_pop_free(list, X509V3_conf_free); + return ret; + } + +int TS_CONF_set_clock_precision_digits(CONF *conf, const char *section, + TS_RESP_CTX *ctx) + { + int ret = 0; + long digits = 0; + + /* If not specified, set the default value to 0, i.e. sec precision */ + if (!NCONF_get_number_e(conf, section, ENV_CLOCK_PRECISION_DIGITS, + &digits)) + digits = 0; + if (digits < 0 || digits > TS_MAX_CLOCK_PRECISION_DIGITS) + { + TS_CONF_invalid(section, ENV_CLOCK_PRECISION_DIGITS); + goto err; + } + + if (!TS_RESP_CTX_set_clock_precision_digits(ctx, digits)) + goto err; + + return 1; + err: + return ret; + } + +static int TS_CONF_add_flag(CONF *conf, const char *section, const char *field, + int flag, TS_RESP_CTX *ctx) + { + /* Default is false. */ + const char *value = NCONF_get_string(conf, section, field); + if (value) + { + if (strcmp(value, ENV_VALUE_YES) == 0) + TS_RESP_CTX_add_flags(ctx, flag); + else if (strcmp(value, ENV_VALUE_NO) != 0) + { + TS_CONF_invalid(section, field); + return 0; + } + } + + return 1; + } + +int TS_CONF_set_ordering(CONF *conf, const char *section, TS_RESP_CTX *ctx) + { + return TS_CONF_add_flag(conf, section, ENV_ORDERING, TS_ORDERING, ctx); + } + +int TS_CONF_set_tsa_name(CONF *conf, const char *section, TS_RESP_CTX *ctx) + { + return TS_CONF_add_flag(conf, section, ENV_TSA_NAME, TS_TSA_NAME, ctx); + } + +int TS_CONF_set_ess_cert_id_chain(CONF *conf, const char *section, + TS_RESP_CTX *ctx) + { + return TS_CONF_add_flag(conf, section, ENV_ESS_CERT_ID_CHAIN, + TS_ESS_CERT_ID_CHAIN, ctx); + } |