| /* |
| * Copyright 2006-2022 The OpenSSL Project Authors. All Rights Reserved. |
| * |
| * Licensed under the Apache License 2.0 (the "License"). You may not use |
| * this file except in compliance with the License. You can obtain a copy |
| * in the file LICENSE in the source distribution or at |
| * https://www.openssl.org/source/license.html |
| */ |
| |
| #include <openssl/opensslconf.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include "apps.h" |
| #include "progs.h" |
| #include <openssl/bio.h> |
| #include <openssl/err.h> |
| #include <openssl/pem.h> |
| #include <openssl/rand.h> |
| #include <openssl/ts.h> |
| #include <openssl/bn.h> |
| |
| /* Request nonce length, in bits (must be a multiple of 8). */ |
| #define NONCE_LENGTH 64 |
| |
| /* Name of config entry that defines the OID file. */ |
| #define ENV_OID_FILE "oid_file" |
| |
| /* Is |EXACTLY_ONE| of three pointers set? */ |
| #define EXACTLY_ONE(a, b, c) \ |
| (( a && !b && !c) || \ |
| ( b && !a && !c) || \ |
| ( c && !a && !b)) |
| |
| static ASN1_OBJECT *txt2obj(const char *oid); |
| static CONF *load_config_file(const char *configfile); |
| |
| /* Query related functions. */ |
| static int query_command(const char *data, const char *digest, |
| const EVP_MD *md, const char *policy, int no_nonce, |
| int cert, const char *in, const char *out, int text); |
| static TS_REQ *create_query(BIO *data_bio, const char *digest, const EVP_MD *md, |
| const char *policy, int no_nonce, int cert); |
| static int create_digest(BIO *input, const char *digest, |
| const EVP_MD *md, unsigned char **md_value); |
| static ASN1_INTEGER *create_nonce(int bits); |
| |
| /* Reply related functions. */ |
| static int reply_command(CONF *conf, const char *section, const char *engine, |
| const char *queryfile, const char *passin, const char *inkey, |
| const EVP_MD *md, const char *signer, const char *chain, |
| const char *policy, const char *in, int token_in, |
| const char *out, int token_out, int text); |
| static TS_RESP *read_PKCS7(BIO *in_bio); |
| static TS_RESP *create_response(CONF *conf, const char *section, const char *engine, |
| const char *queryfile, const char *passin, |
| const char *inkey, const EVP_MD *md, const char *signer, |
| const char *chain, const char *policy); |
| static ASN1_INTEGER *serial_cb(TS_RESP_CTX *ctx, void *data); |
| static ASN1_INTEGER *next_serial(const char *serialfile); |
| static int save_ts_serial(const char *serialfile, ASN1_INTEGER *serial); |
| |
| /* Verify related functions. */ |
| static int verify_command(const char *data, const char *digest, const char *queryfile, |
| const char *in, int token_in, |
| const char *CApath, const char *CAfile, |
| const char *CAstore, |
| char *untrusted, X509_VERIFY_PARAM *vpm); |
| static TS_VERIFY_CTX *create_verify_ctx(const char *data, const char *digest, |
| const char *queryfile, |
| const char *CApath, const char *CAfile, |
| const char *CAstore, |
| char *untrusted, |
| X509_VERIFY_PARAM *vpm); |
| static X509_STORE *create_cert_store(const char *CApath, const char *CAfile, |
| const char *CAstore, X509_VERIFY_PARAM *vpm); |
| static int verify_cb(int ok, X509_STORE_CTX *ctx); |
| |
| typedef enum OPTION_choice { |
| OPT_COMMON, |
| OPT_ENGINE, OPT_CONFIG, OPT_SECTION, OPT_QUERY, OPT_DATA, |
| OPT_DIGEST, OPT_TSPOLICY, OPT_NO_NONCE, OPT_CERT, |
| OPT_IN, OPT_TOKEN_IN, OPT_OUT, OPT_TOKEN_OUT, OPT_TEXT, |
| OPT_REPLY, OPT_QUERYFILE, OPT_PASSIN, OPT_INKEY, OPT_SIGNER, |
| OPT_CHAIN, OPT_VERIFY, OPT_CAPATH, OPT_CAFILE, OPT_CASTORE, OPT_UNTRUSTED, |
| OPT_MD, OPT_V_ENUM, OPT_R_ENUM, OPT_PROV_ENUM |
| } OPTION_CHOICE; |
| |
| const OPTIONS ts_options[] = { |
| OPT_SECTION("General"), |
| {"help", OPT_HELP, '-', "Display this summary"}, |
| {"config", OPT_CONFIG, '<', "Configuration file"}, |
| {"section", OPT_SECTION, 's', "Section to use within config file"}, |
| #ifndef OPENSSL_NO_ENGINE |
| {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, |
| #endif |
| {"inkey", OPT_INKEY, 's', "File with private key for reply"}, |
| {"signer", OPT_SIGNER, 's', "Signer certificate file"}, |
| {"chain", OPT_CHAIN, '<', "File with signer CA chain"}, |
| {"CAfile", OPT_CAFILE, '<', "File with trusted CA certs"}, |
| {"CApath", OPT_CAPATH, '/', "Path to trusted CA files"}, |
| {"CAstore", OPT_CASTORE, ':', "URI to trusted CA store"}, |
| {"untrusted", OPT_UNTRUSTED, '<', "Extra untrusted certs"}, |
| {"token_in", OPT_TOKEN_IN, '-', "Input is a PKCS#7 file"}, |
| {"token_out", OPT_TOKEN_OUT, '-', "Output is a PKCS#7 file"}, |
| {"passin", OPT_PASSIN, 's', "Input file pass phrase source"}, |
| {"", OPT_MD, '-', "Any supported digest"}, |
| |
| OPT_SECTION("Query"), |
| {"query", OPT_QUERY, '-', "Generate a TS query"}, |
| {"data", OPT_DATA, '<', "File to hash"}, |
| {"digest", OPT_DIGEST, 's', "Digest (as a hex string)"}, |
| {"queryfile", OPT_QUERYFILE, '<', "File containing a TS query"}, |
| {"cert", OPT_CERT, '-', "Put cert request into query"}, |
| {"in", OPT_IN, '<', "Input file"}, |
| |
| OPT_SECTION("Verify"), |
| {"verify", OPT_VERIFY, '-', "Verify a TS response"}, |
| {"reply", OPT_REPLY, '-', "Generate a TS reply"}, |
| {"tspolicy", OPT_TSPOLICY, 's', "Policy OID to use"}, |
| {"no_nonce", OPT_NO_NONCE, '-', "Do not include a nonce"}, |
| {"out", OPT_OUT, '>', "Output file"}, |
| {"text", OPT_TEXT, '-', "Output text (not DER)"}, |
| |
| OPT_R_OPTIONS, |
| OPT_V_OPTIONS, |
| OPT_PROV_OPTIONS, |
| {NULL} |
| }; |
| |
| /* |
| * This command is so complex, special help is needed. |
| */ |
| static char* opt_helplist[] = { |
| "", |
| "Typical uses:", |
| " openssl ts -query [-rand file...] [-config file] [-data file]", |
| " [-digest hexstring] [-tspolicy oid] [-no_nonce] [-cert]", |
| " [-in file] [-out file] [-text]", |
| "", |
| " openssl ts -reply [-config file] [-section tsa_section]", |
| " [-queryfile file] [-passin password]", |
| " [-signer tsa_cert.pem] [-inkey private_key.pem]", |
| " [-chain certs_file.pem] [-tspolicy oid]", |
| " [-in file] [-token_in] [-out file] [-token_out]", |
| #ifndef OPENSSL_NO_ENGINE |
| " [-text] [-engine id]", |
| #else |
| " [-text]", |
| #endif |
| "", |
| " openssl ts -verify -CApath dir -CAfile root-cert.pem -CAstore uri", |
| " -untrusted extra-certs.pem [-data file] [-digest hexstring]", |
| " [-queryfile request.tsq] -in response.tsr [-token_in] ...", |
| NULL, |
| }; |
| |
| int ts_main(int argc, char **argv) |
| { |
| CONF *conf = NULL; |
| const char *CAfile = NULL, *prog; |
| char *untrusted = NULL; |
| const char *configfile = default_config_file, *engine = NULL; |
| const char *section = NULL, *digestname = NULL; |
| char **helpp; |
| char *password = NULL; |
| char *data = NULL, *digest = NULL, *policy = NULL; |
| char *in = NULL, *out = NULL, *queryfile = NULL, *passin = NULL; |
| char *inkey = NULL, *signer = NULL, *chain = NULL, *CApath = NULL; |
| char *CAstore = NULL; |
| EVP_MD *md = NULL; |
| OPTION_CHOICE o, mode = OPT_ERR; |
| int ret = 1, no_nonce = 0, cert = 0, text = 0; |
| int vpmtouched = 0; |
| X509_VERIFY_PARAM *vpm = NULL; |
| /* Input is ContentInfo instead of TimeStampResp. */ |
| int token_in = 0; |
| /* Output is ContentInfo instead of TimeStampResp. */ |
| int token_out = 0; |
| |
| if ((vpm = X509_VERIFY_PARAM_new()) == NULL) |
| goto end; |
| |
| opt_set_unknown_name("digest"); |
| prog = opt_init(argc, argv, ts_options); |
| while ((o = opt_next()) != OPT_EOF) { |
| switch (o) { |
| case OPT_EOF: |
| case OPT_ERR: |
| opthelp: |
| BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); |
| goto end; |
| case OPT_HELP: |
| opt_help(ts_options); |
| for (helpp = opt_helplist; *helpp; ++helpp) |
| BIO_printf(bio_err, "%s\n", *helpp); |
| ret = 0; |
| goto end; |
| case OPT_CONFIG: |
| configfile = opt_arg(); |
| break; |
| case OPT_SECTION: |
| section = opt_arg(); |
| break; |
| case OPT_QUERY: |
| case OPT_REPLY: |
| case OPT_VERIFY: |
| if (mode != OPT_ERR) { |
| BIO_printf(bio_err, "%s: Must give only one of -query, -reply, or -verify\n", prog); |
| goto opthelp; |
| } |
| mode = o; |
| break; |
| case OPT_DATA: |
| data = opt_arg(); |
| break; |
| case OPT_DIGEST: |
| digest = opt_arg(); |
| break; |
| case OPT_R_CASES: |
| if (!opt_rand(o)) |
| goto end; |
| break; |
| case OPT_PROV_CASES: |
| if (!opt_provider(o)) |
| goto end; |
| break; |
| case OPT_TSPOLICY: |
| policy = opt_arg(); |
| break; |
| case OPT_NO_NONCE: |
| no_nonce = 1; |
| break; |
| case OPT_CERT: |
| cert = 1; |
| break; |
| case OPT_IN: |
| in = opt_arg(); |
| break; |
| case OPT_TOKEN_IN: |
| token_in = 1; |
| break; |
| case OPT_OUT: |
| out = opt_arg(); |
| break; |
| case OPT_TOKEN_OUT: |
| token_out = 1; |
| break; |
| case OPT_TEXT: |
| text = 1; |
| break; |
| case OPT_QUERYFILE: |
| queryfile = opt_arg(); |
| break; |
| case OPT_PASSIN: |
| passin = opt_arg(); |
| break; |
| case OPT_INKEY: |
| inkey = opt_arg(); |
| break; |
| case OPT_SIGNER: |
| signer = opt_arg(); |
| break; |
| case OPT_CHAIN: |
| chain = opt_arg(); |
| break; |
| case OPT_CAPATH: |
| CApath = opt_arg(); |
| break; |
| case OPT_CAFILE: |
| CAfile = opt_arg(); |
| break; |
| case OPT_CASTORE: |
| CAstore = opt_arg(); |
| break; |
| case OPT_UNTRUSTED: |
| untrusted = opt_arg(); |
| break; |
| case OPT_ENGINE: |
| engine = opt_arg(); |
| break; |
| case OPT_MD: |
| digestname = opt_unknown(); |
| break; |
| case OPT_V_CASES: |
| if (!opt_verify(o, vpm)) |
| goto end; |
| vpmtouched++; |
| break; |
| } |
| } |
| |
| /* No extra arguments. */ |
| if (!opt_check_rest_arg(NULL)) |
| goto opthelp; |
| if (mode == OPT_ERR) { |
| BIO_printf(bio_err, "%s: Must give one of -query, -reply, or -verify\n", prog); |
| goto opthelp; |
| } |
| |
| if (!app_RAND_load()) |
| goto end; |
| |
| if (!opt_md(digestname, &md)) |
| goto opthelp; |
| if (mode == OPT_REPLY && passin && |
| !app_passwd(passin, NULL, &password, NULL)) { |
| BIO_printf(bio_err, "Error getting password.\n"); |
| goto end; |
| } |
| |
| if ((conf = load_config_file(configfile)) == NULL) |
| goto end; |
| if (configfile != default_config_file && !app_load_modules(conf)) |
| goto end; |
| |
| /* Check parameter consistency and execute the appropriate function. */ |
| if (mode == OPT_QUERY) { |
| if (vpmtouched) |
| goto opthelp; |
| if ((data != NULL) && (digest != NULL)) |
| goto opthelp; |
| ret = !query_command(data, digest, md, policy, no_nonce, cert, |
| in, out, text); |
| } else if (mode == OPT_REPLY) { |
| if (vpmtouched) |
| goto opthelp; |
| if ((in != NULL) && (queryfile != NULL)) |
| goto opthelp; |
| if (in == NULL) { |
| if ((conf == NULL) || (token_in != 0)) |
| goto opthelp; |
| } |
| ret = !reply_command(conf, section, engine, queryfile, |
| password, inkey, md, signer, chain, policy, |
| in, token_in, out, token_out, text); |
| |
| } else if (mode == OPT_VERIFY) { |
| if ((in == NULL) || !EXACTLY_ONE(queryfile, data, digest)) |
| goto opthelp; |
| ret = !verify_command(data, digest, queryfile, in, token_in, |
| CApath, CAfile, CAstore, untrusted, |
| vpmtouched ? vpm : NULL); |
| } else { |
| goto opthelp; |
| } |
| |
| end: |
| X509_VERIFY_PARAM_free(vpm); |
| EVP_MD_free(md); |
| NCONF_free(conf); |
| OPENSSL_free(password); |
| return ret; |
| } |
| |
| /* |
| * Configuration file-related function definitions. |
| */ |
| |
| static ASN1_OBJECT *txt2obj(const char *oid) |
| { |
| ASN1_OBJECT *oid_obj = NULL; |
| |
| if ((oid_obj = OBJ_txt2obj(oid, 0)) == NULL) |
| BIO_printf(bio_err, "cannot convert %s to OID\n", oid); |
| |
| return oid_obj; |
| } |
| |
| static CONF *load_config_file(const char *configfile) |
| { |
| CONF *conf = app_load_config(configfile); |
| |
| if (conf != NULL) { |
| const char *p; |
| |
| BIO_printf(bio_err, "Using configuration from %s\n", configfile); |
| p = NCONF_get_string(conf, NULL, ENV_OID_FILE); |
| if (p != NULL) { |
| BIO *oid_bio = BIO_new_file(p, "r"); |
| if (!oid_bio) |
| ERR_print_errors(bio_err); |
| else { |
| OBJ_create_objects(oid_bio); |
| BIO_free_all(oid_bio); |
| } |
| } else |
| ERR_clear_error(); |
| if (!add_oid_section(conf)) |
| ERR_print_errors(bio_err); |
| } |
| return conf; |
| } |
| |
| /* |
| * Query-related method definitions. |
| */ |
| static int query_command(const char *data, const char *digest, const EVP_MD *md, |
| const char *policy, int no_nonce, |
| int cert, const char *in, const char *out, int text) |
| { |
| int ret = 0; |
| TS_REQ *query = NULL; |
| BIO *in_bio = NULL; |
| BIO *data_bio = NULL; |
| BIO *out_bio = NULL; |
| |
| /* Build query object. */ |
| if (in != NULL) { |
| if ((in_bio = bio_open_default(in, 'r', FORMAT_ASN1)) == NULL) |
| goto end; |
| query = d2i_TS_REQ_bio(in_bio, NULL); |
| } else { |
| if (digest == NULL |
| && (data_bio = bio_open_default(data, 'r', FORMAT_ASN1)) == NULL) |
| goto end; |
| query = create_query(data_bio, digest, md, policy, no_nonce, cert); |
| } |
| if (query == NULL) |
| goto end; |
| |
| if (text) { |
| if ((out_bio = bio_open_default(out, 'w', FORMAT_TEXT)) == NULL) |
| goto end; |
| if (!TS_REQ_print_bio(out_bio, query)) |
| goto end; |
| } else { |
| if ((out_bio = bio_open_default(out, 'w', FORMAT_ASN1)) == NULL) |
| goto end; |
| if (!i2d_TS_REQ_bio(out_bio, query)) |
| goto end; |
| } |
| |
| ret = 1; |
| |
| end: |
| ERR_print_errors(bio_err); |
| BIO_free_all(in_bio); |
| BIO_free_all(data_bio); |
| BIO_free_all(out_bio); |
| TS_REQ_free(query); |
| return ret; |
| } |
| |
| static TS_REQ *create_query(BIO *data_bio, const char *digest, const EVP_MD *md, |
| const char *policy, int no_nonce, int cert) |
| { |
| int ret = 0; |
| TS_REQ *ts_req = NULL; |
| int len; |
| TS_MSG_IMPRINT *msg_imprint = NULL; |
| X509_ALGOR *algo = NULL; |
| unsigned char *data = NULL; |
| ASN1_OBJECT *policy_obj = NULL; |
| ASN1_INTEGER *nonce_asn1 = NULL; |
| |
| if (md == NULL && (md = EVP_get_digestbyname("sha256")) == NULL) |
| goto err; |
| if ((ts_req = TS_REQ_new()) == NULL) |
| goto err; |
| if (!TS_REQ_set_version(ts_req, 1)) |
| goto err; |
| if ((msg_imprint = TS_MSG_IMPRINT_new()) == NULL) |
| goto err; |
| if ((algo = X509_ALGOR_new()) == NULL) |
| goto err; |
| if ((algo->algorithm = OBJ_nid2obj(EVP_MD_get_type(md))) == NULL) |
| goto err; |
| if ((algo->parameter = ASN1_TYPE_new()) == NULL) |
| goto err; |
| algo->parameter->type = V_ASN1_NULL; |
| if (!TS_MSG_IMPRINT_set_algo(msg_imprint, algo)) |
| goto err; |
| if ((len = create_digest(data_bio, digest, md, &data)) == 0) |
| goto err; |
| if (!TS_MSG_IMPRINT_set_msg(msg_imprint, data, len)) |
| goto err; |
| if (!TS_REQ_set_msg_imprint(ts_req, msg_imprint)) |
| goto err; |
| if (policy && (policy_obj = txt2obj(policy)) == NULL) |
| goto err; |
| if (policy_obj && !TS_REQ_set_policy_id(ts_req, policy_obj)) |
| goto err; |
| |
| /* Setting nonce if requested. */ |
| if (!no_nonce && (nonce_asn1 = create_nonce(NONCE_LENGTH)) == NULL) |
| goto err; |
| if (nonce_asn1 && !TS_REQ_set_nonce(ts_req, nonce_asn1)) |
| goto err; |
| if (!TS_REQ_set_cert_req(ts_req, cert)) |
| goto err; |
| |
| ret = 1; |
| err: |
| if (!ret) { |
| TS_REQ_free(ts_req); |
| ts_req = NULL; |
| BIO_printf(bio_err, "could not create query\n"); |
| ERR_print_errors(bio_err); |
| } |
| TS_MSG_IMPRINT_free(msg_imprint); |
| X509_ALGOR_free(algo); |
| OPENSSL_free(data); |
| ASN1_OBJECT_free(policy_obj); |
| ASN1_INTEGER_free(nonce_asn1); |
| return ts_req; |
| } |
| |
| static int create_digest(BIO *input, const char *digest, const EVP_MD *md, |
| unsigned char **md_value) |
| { |
| int md_value_len; |
| int rv = 0; |
| EVP_MD_CTX *md_ctx = NULL; |
| |
| md_value_len = EVP_MD_get_size(md); |
| if (md_value_len < 0) |
| return 0; |
| |
| if (input != NULL) { |
| unsigned char buffer[4096]; |
| int length; |
| |
| md_ctx = EVP_MD_CTX_new(); |
| if (md_ctx == NULL) |
| return 0; |
| *md_value = app_malloc(md_value_len, "digest buffer"); |
| if (!EVP_DigestInit(md_ctx, md)) |
| goto err; |
| while ((length = BIO_read(input, buffer, sizeof(buffer))) > 0) { |
| if (!EVP_DigestUpdate(md_ctx, buffer, length)) |
| goto err; |
| } |
| if (!EVP_DigestFinal(md_ctx, *md_value, NULL)) |
| goto err; |
| md_value_len = EVP_MD_get_size(md); |
| } else { |
| long digest_len; |
| |
| *md_value = OPENSSL_hexstr2buf(digest, &digest_len); |
| if (*md_value == NULL || md_value_len != digest_len) { |
| OPENSSL_free(*md_value); |
| *md_value = NULL; |
| BIO_printf(bio_err, "bad digest, %d bytes " |
| "must be specified\n", md_value_len); |
| return 0; |
| } |
| } |
| rv = md_value_len; |
| err: |
| EVP_MD_CTX_free(md_ctx); |
| return rv; |
| } |
| |
| static ASN1_INTEGER *create_nonce(int bits) |
| { |
| unsigned char buf[20]; |
| ASN1_INTEGER *nonce = NULL; |
| int len = (bits - 1) / 8 + 1; |
| int i; |
| |
| if (len > (int)sizeof(buf)) |
| goto err; |
| if (RAND_bytes(buf, len) <= 0) |
| goto err; |
| |
| /* Find the first non-zero byte and creating ASN1_INTEGER object. */ |
| for (i = 0; i < len && !buf[i]; ++i) |
| continue; |
| if ((nonce = ASN1_INTEGER_new()) == NULL) |
| goto err; |
| OPENSSL_free(nonce->data); |
| nonce->length = len - i; |
| nonce->data = app_malloc(nonce->length + 1, "nonce buffer"); |
| memcpy(nonce->data, buf + i, nonce->length); |
| return nonce; |
| |
| err: |
| BIO_printf(bio_err, "could not create nonce\n"); |
| ASN1_INTEGER_free(nonce); |
| return NULL; |
| } |
| |
| /* |
| * Reply-related method definitions. |
| */ |
| |
| static int reply_command(CONF *conf, const char *section, const char *engine, |
| const char *queryfile, const char *passin, const char *inkey, |
| const EVP_MD *md, const char *signer, const char *chain, |
| const char *policy, const char *in, int token_in, |
| const char *out, int token_out, int text) |
| { |
| int ret = 0; |
| TS_RESP *response = NULL; |
| BIO *in_bio = NULL; |
| BIO *query_bio = NULL; |
| BIO *inkey_bio = NULL; |
| BIO *signer_bio = NULL; |
| BIO *out_bio = NULL; |
| |
| if (in != NULL) { |
| if ((in_bio = BIO_new_file(in, "rb")) == NULL) |
| goto end; |
| if (token_in) { |
| response = read_PKCS7(in_bio); |
| } else { |
| response = d2i_TS_RESP_bio(in_bio, NULL); |
| } |
| } else { |
| response = create_response(conf, section, engine, queryfile, |
| passin, inkey, md, signer, chain, policy); |
| if (response != NULL) |
| BIO_printf(bio_err, "Response has been generated.\n"); |
| else |
| BIO_printf(bio_err, "Response is not generated.\n"); |
| } |
| if (response == NULL) |
| goto end; |
| |
| /* Write response. */ |
| if (text) { |
| if ((out_bio = bio_open_default(out, 'w', FORMAT_TEXT)) == NULL) |
| goto end; |
| if (token_out) { |
| TS_TST_INFO *tst_info = TS_RESP_get_tst_info(response); |
| if (!TS_TST_INFO_print_bio(out_bio, tst_info)) |
| goto end; |
| } else { |
| if (!TS_RESP_print_bio(out_bio, response)) |
| goto end; |
| } |
| } else { |
| if ((out_bio = bio_open_default(out, 'w', FORMAT_ASN1)) == NULL) |
| goto end; |
| if (token_out) { |
| PKCS7 *token = TS_RESP_get_token(response); |
| if (!i2d_PKCS7_bio(out_bio, token)) |
| goto end; |
| } else { |
| if (!i2d_TS_RESP_bio(out_bio, response)) |
| goto end; |
| } |
| } |
| |
| ret = 1; |
| |
| end: |
| ERR_print_errors(bio_err); |
| BIO_free_all(in_bio); |
| BIO_free_all(query_bio); |
| BIO_free_all(inkey_bio); |
| BIO_free_all(signer_bio); |
| BIO_free_all(out_bio); |
| TS_RESP_free(response); |
| return ret; |
| } |
| |
| /* Reads a PKCS7 token and adds default 'granted' status info to it. */ |
| static TS_RESP *read_PKCS7(BIO *in_bio) |
| { |
| int ret = 0; |
| PKCS7 *token = NULL; |
| TS_TST_INFO *tst_info = NULL; |
| TS_RESP *resp = NULL; |
| TS_STATUS_INFO *si = NULL; |
| |
| if ((token = d2i_PKCS7_bio(in_bio, NULL)) == NULL) |
| goto end; |
| if ((tst_info = PKCS7_to_TS_TST_INFO(token)) == NULL) |
| goto end; |
| if ((resp = TS_RESP_new()) == NULL) |
| goto end; |
| if ((si = TS_STATUS_INFO_new()) == NULL) |
| goto end; |
| if (!TS_STATUS_INFO_set_status(si, TS_STATUS_GRANTED)) |
| goto end; |
| if (!TS_RESP_set_status_info(resp, si)) |
| goto end; |
| TS_RESP_set_tst_info(resp, token, tst_info); |
| token = NULL; /* Ownership is lost. */ |
| tst_info = NULL; /* Ownership is lost. */ |
| ret = 1; |
| |
| end: |
| PKCS7_free(token); |
| TS_TST_INFO_free(tst_info); |
| if (!ret) { |
| TS_RESP_free(resp); |
| resp = NULL; |
| } |
| TS_STATUS_INFO_free(si); |
| return resp; |
| } |
| |
| static TS_RESP *create_response(CONF *conf, const char *section, const char *engine, |
| const char *queryfile, const char *passin, |
| const char *inkey, const EVP_MD *md, const char *signer, |
| const char *chain, const char *policy) |
| { |
| int ret = 0; |
| TS_RESP *response = NULL; |
| BIO *query_bio = NULL; |
| TS_RESP_CTX *resp_ctx = NULL; |
| |
| if ((query_bio = BIO_new_file(queryfile, "rb")) == NULL) |
| goto end; |
| if ((section = TS_CONF_get_tsa_section(conf, section)) == NULL) |
| goto end; |
| if ((resp_ctx = TS_RESP_CTX_new()) == NULL) |
| goto end; |
| if (!TS_CONF_set_serial(conf, section, serial_cb, resp_ctx)) |
| goto end; |
| #ifndef OPENSSL_NO_ENGINE |
| if (!TS_CONF_set_crypto_device(conf, section, engine)) |
| goto end; |
| #endif |
| if (!TS_CONF_set_signer_cert(conf, section, signer, resp_ctx)) |
| goto end; |
| if (!TS_CONF_set_certs(conf, section, chain, resp_ctx)) |
| goto end; |
| if (!TS_CONF_set_signer_key(conf, section, inkey, passin, resp_ctx)) |
| goto end; |
| |
| if (md) { |
| if (!TS_RESP_CTX_set_signer_digest(resp_ctx, md)) |
| goto end; |
| } else if (!TS_CONF_set_signer_digest(conf, section, NULL, resp_ctx)) { |
| goto end; |
| } |
| |
| if (!TS_CONF_set_ess_cert_id_digest(conf, section, resp_ctx)) |
| goto end; |
| if (!TS_CONF_set_def_policy(conf, section, policy, resp_ctx)) |
| goto end; |
| if (!TS_CONF_set_policies(conf, section, resp_ctx)) |
| goto end; |
| if (!TS_CONF_set_digests(conf, section, resp_ctx)) |
| goto end; |
| if (!TS_CONF_set_accuracy(conf, section, resp_ctx)) |
| goto end; |
| if (!TS_CONF_set_clock_precision_digits(conf, section, resp_ctx)) |
| goto end; |
| if (!TS_CONF_set_ordering(conf, section, resp_ctx)) |
| goto end; |
| if (!TS_CONF_set_tsa_name(conf, section, resp_ctx)) |
| goto end; |
| if (!TS_CONF_set_ess_cert_id_chain(conf, section, resp_ctx)) |
| goto end; |
| if ((response = TS_RESP_create_response(resp_ctx, query_bio)) == NULL) |
| goto end; |
| ret = 1; |
| |
| end: |
| if (!ret) { |
| TS_RESP_free(response); |
| response = NULL; |
| } |
| TS_RESP_CTX_free(resp_ctx); |
| BIO_free_all(query_bio); |
| return response; |
| } |
| |
| static ASN1_INTEGER *serial_cb(TS_RESP_CTX *ctx, void *data) |
| { |
| const char *serial_file = (const char *)data; |
| ASN1_INTEGER *serial = next_serial(serial_file); |
| |
| if (serial == NULL) { |
| TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION, |
| "Error during serial number " |
| "generation."); |
| TS_RESP_CTX_add_failure_info(ctx, TS_INFO_ADD_INFO_NOT_AVAILABLE); |
| } else { |
| save_ts_serial(serial_file, serial); |
| } |
| |
| return serial; |
| } |
| |
| static ASN1_INTEGER *next_serial(const char *serialfile) |
| { |
| int ret = 0; |
| BIO *in = NULL; |
| ASN1_INTEGER *serial = NULL; |
| BIGNUM *bn = NULL; |
| |
| if ((serial = ASN1_INTEGER_new()) == NULL) |
| goto err; |
| |
| if ((in = BIO_new_file(serialfile, "r")) == NULL) { |
| ERR_clear_error(); |
| BIO_printf(bio_err, "Warning: could not open file %s for " |
| "reading, using serial number: 1\n", serialfile); |
| if (!ASN1_INTEGER_set(serial, 1)) |
| goto err; |
| } else { |
| char buf[1024]; |
| if (!a2i_ASN1_INTEGER(in, serial, buf, sizeof(buf))) { |
| BIO_printf(bio_err, "unable to load number from %s\n", |
| serialfile); |
| goto err; |
| } |
| if ((bn = ASN1_INTEGER_to_BN(serial, NULL)) == NULL) |
| goto err; |
| ASN1_INTEGER_free(serial); |
| serial = NULL; |
| if (!BN_add_word(bn, 1)) |
| goto err; |
| if ((serial = BN_to_ASN1_INTEGER(bn, NULL)) == NULL) |
| goto err; |
| } |
| ret = 1; |
| |
| err: |
| if (!ret) { |
| ASN1_INTEGER_free(serial); |
| serial = NULL; |
| } |
| BIO_free_all(in); |
| BN_free(bn); |
| return serial; |
| } |
| |
| static int save_ts_serial(const char *serialfile, ASN1_INTEGER *serial) |
| { |
| int ret = 0; |
| BIO *out = NULL; |
| |
| if ((out = BIO_new_file(serialfile, "w")) == NULL) |
| goto err; |
| if (i2a_ASN1_INTEGER(out, serial) <= 0) |
| goto err; |
| if (BIO_puts(out, "\n") <= 0) |
| goto err; |
| ret = 1; |
| err: |
| if (!ret) |
| BIO_printf(bio_err, "could not save serial number to %s\n", |
| serialfile); |
| BIO_free_all(out); |
| return ret; |
| } |
| |
| |
| /* |
| * Verify-related method definitions. |
| */ |
| |
| static int verify_command(const char *data, const char *digest, const char *queryfile, |
| const char *in, int token_in, |
| const char *CApath, const char *CAfile, |
| const char *CAstore, char *untrusted, |
| X509_VERIFY_PARAM *vpm) |
| { |
| BIO *in_bio = NULL; |
| PKCS7 *token = NULL; |
| TS_RESP *response = NULL; |
| TS_VERIFY_CTX *verify_ctx = NULL; |
| int ret = 0; |
| |
| if ((in_bio = BIO_new_file(in, "rb")) == NULL) |
| goto end; |
| if (token_in) { |
| if ((token = d2i_PKCS7_bio(in_bio, NULL)) == NULL) |
| goto end; |
| } else { |
| if ((response = d2i_TS_RESP_bio(in_bio, NULL)) == NULL) |
| goto end; |
| } |
| |
| if ((verify_ctx = create_verify_ctx(data, digest, queryfile, |
| CApath, CAfile, CAstore, untrusted, |
| vpm)) == NULL) |
| goto end; |
| |
| ret = token_in |
| ? TS_RESP_verify_token(verify_ctx, token) |
| : TS_RESP_verify_response(verify_ctx, response); |
| |
| end: |
| printf("Verification: "); |
| if (ret) |
| printf("OK\n"); |
| else { |
| printf("FAILED\n"); |
| ERR_print_errors(bio_err); |
| } |
| |
| BIO_free_all(in_bio); |
| PKCS7_free(token); |
| TS_RESP_free(response); |
| TS_VERIFY_CTX_free(verify_ctx); |
| return ret; |
| } |
| |
| static TS_VERIFY_CTX *create_verify_ctx(const char *data, const char *digest, |
| const char *queryfile, |
| const char *CApath, const char *CAfile, |
| const char *CAstore, |
| char *untrusted, |
| X509_VERIFY_PARAM *vpm) |
| { |
| TS_VERIFY_CTX *ctx = NULL; |
| STACK_OF(X509) *certs; |
| BIO *input = NULL; |
| TS_REQ *request = NULL; |
| int ret = 0; |
| int f = 0; |
| |
| if (data != NULL || digest != NULL) { |
| if ((ctx = TS_VERIFY_CTX_new()) == NULL) |
| goto err; |
| f = TS_VFY_VERSION | TS_VFY_SIGNER; |
| if (data != NULL) { |
| BIO *out = NULL; |
| |
| f |= TS_VFY_DATA; |
| if ((out = BIO_new_file(data, "rb")) == NULL) |
| goto err; |
| if (TS_VERIFY_CTX_set_data(ctx, out) == NULL) { |
| BIO_free_all(out); |
| goto err; |
| } |
| } else if (digest != NULL) { |
| long imprint_len; |
| unsigned char *hexstr = OPENSSL_hexstr2buf(digest, &imprint_len); |
| f |= TS_VFY_IMPRINT; |
| if (TS_VERIFY_CTX_set_imprint(ctx, hexstr, imprint_len) == NULL) { |
| BIO_printf(bio_err, "invalid digest string\n"); |
| goto err; |
| } |
| } |
| |
| } else if (queryfile != NULL) { |
| if ((input = BIO_new_file(queryfile, "rb")) == NULL) |
| goto err; |
| if ((request = d2i_TS_REQ_bio(input, NULL)) == NULL) |
| goto err; |
| if ((ctx = TS_REQ_to_TS_VERIFY_CTX(request, NULL)) == NULL) |
| goto err; |
| } else { |
| return NULL; |
| } |
| |
| /* Add the signature verification flag and arguments. */ |
| TS_VERIFY_CTX_add_flags(ctx, f | TS_VFY_SIGNATURE); |
| |
| /* Initialising the X509_STORE object. */ |
| if (TS_VERIFY_CTX_set_store(ctx, |
| create_cert_store(CApath, CAfile, CAstore, vpm)) |
| == NULL) |
| goto err; |
| |
| /* Loading any extra untrusted certificates. */ |
| if (untrusted != NULL) { |
| certs = load_certs_multifile(untrusted, NULL, "extra untrusted certs", |
| vpm); |
| if (certs == NULL || TS_VERIFY_CTX_set_certs(ctx, certs) == NULL) |
| goto err; |
| } |
| ret = 1; |
| |
| err: |
| if (!ret) { |
| TS_VERIFY_CTX_free(ctx); |
| ctx = NULL; |
| } |
| BIO_free_all(input); |
| TS_REQ_free(request); |
| return ctx; |
| } |
| |
| static X509_STORE *create_cert_store(const char *CApath, const char *CAfile, |
| const char *CAstore, X509_VERIFY_PARAM *vpm) |
| { |
| X509_STORE *cert_ctx = NULL; |
| X509_LOOKUP *lookup = NULL; |
| OSSL_LIB_CTX *libctx = app_get0_libctx(); |
| const char *propq = app_get0_propq(); |
| |
| cert_ctx = X509_STORE_new(); |
| if (cert_ctx == NULL) { |
| BIO_printf(bio_err, "memory allocation failure\n"); |
| return NULL; |
| } |
| X509_STORE_set_verify_cb(cert_ctx, verify_cb); |
| if (CApath != NULL) { |
| lookup = X509_STORE_add_lookup(cert_ctx, X509_LOOKUP_hash_dir()); |
| if (lookup == NULL) { |
| BIO_printf(bio_err, "memory allocation failure\n"); |
| goto err; |
| } |
| if (!X509_LOOKUP_add_dir(lookup, CApath, X509_FILETYPE_PEM)) { |
| BIO_printf(bio_err, "Error loading directory %s\n", CApath); |
| goto err; |
| } |
| } |
| |
| if (CAfile != NULL) { |
| lookup = X509_STORE_add_lookup(cert_ctx, X509_LOOKUP_file()); |
| if (lookup == NULL) { |
| BIO_printf(bio_err, "memory allocation failure\n"); |
| goto err; |
| } |
| if (!X509_LOOKUP_load_file_ex(lookup, CAfile, X509_FILETYPE_PEM, libctx, |
| propq)) { |
| BIO_printf(bio_err, "Error loading file %s\n", CAfile); |
| goto err; |
| } |
| } |
| |
| if (CAstore != NULL) { |
| lookup = X509_STORE_add_lookup(cert_ctx, X509_LOOKUP_store()); |
| if (lookup == NULL) { |
| BIO_printf(bio_err, "memory allocation failure\n"); |
| goto err; |
| } |
| if (!X509_LOOKUP_load_store_ex(lookup, CAstore, libctx, propq)) { |
| BIO_printf(bio_err, "Error loading store URI %s\n", CAstore); |
| goto err; |
| } |
| } |
| |
| if (vpm != NULL) |
| X509_STORE_set1_param(cert_ctx, vpm); |
| |
| return cert_ctx; |
| |
| err: |
| X509_STORE_free(cert_ctx); |
| return NULL; |
| } |
| |
| static int verify_cb(int ok, X509_STORE_CTX *ctx) |
| { |
| return ok; |
| } |
