| /* |
| * Copyright 2019-2021 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 <string.h> |
| #include <openssl/evp.h> |
| #include <openssl/err.h> |
| #include <openssl/provider.h> |
| #include <openssl/params.h> |
| #include <openssl/fips_names.h> |
| #include <openssl/core_names.h> |
| #include <openssl/self_test.h> |
| #include <openssl/fipskey.h> |
| #include "apps.h" |
| #include "progs.h" |
| |
| #define BUFSIZE 4096 |
| |
| /* Configuration file values */ |
| #define VERSION_KEY "version" |
| #define VERSION_VAL "1" |
| #define INSTALL_STATUS_VAL "INSTALL_SELF_TEST_KATS_RUN" |
| |
| static OSSL_CALLBACK self_test_events; |
| static char *self_test_corrupt_desc = NULL; |
| static char *self_test_corrupt_type = NULL; |
| static int self_test_log = 1; |
| static int quiet = 0; |
| |
| typedef enum OPTION_choice { |
| OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, |
| OPT_IN, OPT_OUT, OPT_MODULE, |
| OPT_PROV_NAME, OPT_SECTION_NAME, OPT_MAC_NAME, OPT_MACOPT, OPT_VERIFY, |
| OPT_NO_LOG, OPT_CORRUPT_DESC, OPT_CORRUPT_TYPE, OPT_QUIET, OPT_CONFIG, |
| OPT_NO_CONDITIONAL_ERRORS, |
| OPT_NO_SECURITY_CHECKS |
| } OPTION_CHOICE; |
| |
| const OPTIONS fipsinstall_options[] = { |
| OPT_SECTION("General"), |
| {"help", OPT_HELP, '-', "Display this summary"}, |
| {"verify", OPT_VERIFY, '-', |
| "Verify a config file instead of generating one"}, |
| {"module", OPT_MODULE, '<', "File name of the provider module"}, |
| {"provider_name", OPT_PROV_NAME, 's', "FIPS provider name"}, |
| {"section_name", OPT_SECTION_NAME, 's', |
| "FIPS Provider config section name (optional)"}, |
| {"no_conditional_errors", OPT_NO_CONDITIONAL_ERRORS, '-', |
| "Disable the ability of the fips module to enter an error state if" |
| " any conditional self tests fail"}, |
| {"no_security_checks", OPT_NO_SECURITY_CHECKS, '-', |
| "Disable the run-time FIPS security checks in the module"}, |
| OPT_SECTION("Input"), |
| {"in", OPT_IN, '<', "Input config file, used when verifying"}, |
| |
| OPT_SECTION("Output"), |
| {"out", OPT_OUT, '>', "Output config file, used when generating"}, |
| {"mac_name", OPT_MAC_NAME, 's', "MAC name"}, |
| {"macopt", OPT_MACOPT, 's', "MAC algorithm parameters in n:v form. " |
| "See 'PARAMETER NAMES' in the EVP_MAC_ docs"}, |
| {"noout", OPT_NO_LOG, '-', "Disable logging of self test events"}, |
| {"corrupt_desc", OPT_CORRUPT_DESC, 's', "Corrupt a self test by description"}, |
| {"corrupt_type", OPT_CORRUPT_TYPE, 's', "Corrupt a self test by type"}, |
| {"config", OPT_CONFIG, '<', "The parent config to verify"}, |
| {"quiet", OPT_QUIET, '-', "No messages, just exit status"}, |
| {NULL} |
| }; |
| |
| static int do_mac(EVP_MAC_CTX *ctx, unsigned char *tmp, BIO *in, |
| unsigned char *out, size_t *out_len) |
| { |
| int ret = 0; |
| int i; |
| size_t outsz = *out_len; |
| |
| if (!EVP_MAC_init(ctx, NULL, 0, NULL)) |
| goto err; |
| if (EVP_MAC_CTX_get_mac_size(ctx) > outsz) |
| goto end; |
| while ((i = BIO_read(in, (char *)tmp, BUFSIZE)) != 0) { |
| if (i < 0 || !EVP_MAC_update(ctx, tmp, i)) |
| goto err; |
| } |
| end: |
| if (!EVP_MAC_final(ctx, out, out_len, outsz)) |
| goto err; |
| ret = 1; |
| err: |
| return ret; |
| } |
| |
| static int load_fips_prov_and_run_self_test(const char *prov_name) |
| { |
| int ret = 0; |
| OSSL_PROVIDER *prov = NULL; |
| |
| prov = OSSL_PROVIDER_load(NULL, prov_name); |
| if (prov == NULL) { |
| BIO_printf(bio_err, "Failed to load FIPS module\n"); |
| goto end; |
| } |
| ret = 1; |
| end: |
| OSSL_PROVIDER_unload(prov); |
| return ret; |
| } |
| |
| static int print_mac(BIO *bio, const char *label, const unsigned char *mac, |
| size_t len) |
| { |
| int ret; |
| char *hexstr = NULL; |
| |
| hexstr = OPENSSL_buf2hexstr(mac, (long)len); |
| if (hexstr == NULL) |
| return 0; |
| ret = BIO_printf(bio, "%s = %s\n", label, hexstr); |
| OPENSSL_free(hexstr); |
| return ret; |
| } |
| |
| static int write_config_header(BIO *out, const char *prov_name, |
| const char *section) |
| { |
| return BIO_printf(out, "openssl_conf = openssl_init\n\n") |
| && BIO_printf(out, "[openssl_init]\n") |
| && BIO_printf(out, "providers = provider_section\n\n") |
| && BIO_printf(out, "[provider_section]\n") |
| && BIO_printf(out, "%s = %s\n\n", prov_name, section); |
| } |
| |
| /* |
| * Outputs a fips related config file that contains entries for the fips |
| * module checksum, installation indicator checksum and the options |
| * conditional_errors and security_checks. |
| * |
| * Returns 1 if the config file is written otherwise it returns 0 on error. |
| */ |
| static int write_config_fips_section(BIO *out, const char *section, |
| unsigned char *module_mac, |
| size_t module_mac_len, |
| int conditional_errors, |
| int security_checks, |
| unsigned char *install_mac, |
| size_t install_mac_len) |
| { |
| int ret = 0; |
| |
| if (BIO_printf(out, "[%s]\n", section) <= 0 |
| || BIO_printf(out, "activate = 1\n") <= 0 |
| || BIO_printf(out, "%s = %s\n", OSSL_PROV_FIPS_PARAM_INSTALL_VERSION, |
| VERSION_VAL) <= 0 |
| || BIO_printf(out, "%s = %s\n", OSSL_PROV_FIPS_PARAM_CONDITIONAL_ERRORS, |
| conditional_errors ? "1" : "0") <= 0 |
| || BIO_printf(out, "%s = %s\n", OSSL_PROV_FIPS_PARAM_SECURITY_CHECKS, |
| security_checks ? "1" : "0") <= 0 |
| || !print_mac(out, OSSL_PROV_FIPS_PARAM_MODULE_MAC, module_mac, |
| module_mac_len)) |
| goto end; |
| |
| if (install_mac != NULL) { |
| if (!print_mac(out, OSSL_PROV_FIPS_PARAM_INSTALL_MAC, install_mac, |
| install_mac_len) |
| || BIO_printf(out, "%s = %s\n", OSSL_PROV_FIPS_PARAM_INSTALL_STATUS, |
| INSTALL_STATUS_VAL) <= 0) |
| goto end; |
| } |
| ret = 1; |
| end: |
| return ret; |
| } |
| |
| static CONF *generate_config_and_load(const char *prov_name, |
| const char *section, |
| unsigned char *module_mac, |
| size_t module_mac_len, |
| int conditional_errors, |
| int security_checks) |
| { |
| BIO *mem_bio = NULL; |
| CONF *conf = NULL; |
| |
| mem_bio = BIO_new(BIO_s_mem()); |
| if (mem_bio == NULL) |
| return 0; |
| if (!write_config_header(mem_bio, prov_name, section) |
| || !write_config_fips_section(mem_bio, section, |
| module_mac, module_mac_len, |
| conditional_errors, |
| security_checks, |
| NULL, 0)) |
| goto end; |
| |
| conf = app_load_config_bio(mem_bio, NULL); |
| if (conf == NULL) |
| goto end; |
| |
| if (CONF_modules_load(conf, NULL, 0) <= 0) |
| goto end; |
| BIO_free(mem_bio); |
| return conf; |
| end: |
| NCONF_free(conf); |
| BIO_free(mem_bio); |
| return NULL; |
| } |
| |
| static void free_config_and_unload(CONF *conf) |
| { |
| if (conf != NULL) { |
| NCONF_free(conf); |
| CONF_modules_unload(1); |
| } |
| } |
| |
| static int verify_module_load(const char *parent_config_file) |
| { |
| return OSSL_LIB_CTX_load_config(NULL, parent_config_file); |
| } |
| |
| /* |
| * Returns 1 if the config file entries match the passed in module_mac and |
| * install_mac values, otherwise it returns 0. |
| */ |
| static int verify_config(const char *infile, const char *section, |
| unsigned char *module_mac, size_t module_mac_len, |
| unsigned char *install_mac, size_t install_mac_len) |
| { |
| int ret = 0; |
| char *s = NULL; |
| unsigned char *buf1 = NULL, *buf2 = NULL; |
| long len; |
| CONF *conf = NULL; |
| |
| /* read in the existing values and check they match the saved values */ |
| conf = app_load_config(infile); |
| if (conf == NULL) |
| goto end; |
| |
| s = NCONF_get_string(conf, section, OSSL_PROV_FIPS_PARAM_INSTALL_VERSION); |
| if (s == NULL || strcmp(s, VERSION_VAL) != 0) { |
| BIO_printf(bio_err, "version not found\n"); |
| goto end; |
| } |
| s = NCONF_get_string(conf, section, OSSL_PROV_FIPS_PARAM_INSTALL_STATUS); |
| if (s == NULL || strcmp(s, INSTALL_STATUS_VAL) != 0) { |
| BIO_printf(bio_err, "install status not found\n"); |
| goto end; |
| } |
| s = NCONF_get_string(conf, section, OSSL_PROV_FIPS_PARAM_MODULE_MAC); |
| if (s == NULL) { |
| BIO_printf(bio_err, "Module integrity MAC not found\n"); |
| goto end; |
| } |
| buf1 = OPENSSL_hexstr2buf(s, &len); |
| if (buf1 == NULL |
| || (size_t)len != module_mac_len |
| || memcmp(module_mac, buf1, module_mac_len) != 0) { |
| BIO_printf(bio_err, "Module integrity mismatch\n"); |
| goto end; |
| } |
| s = NCONF_get_string(conf, section, OSSL_PROV_FIPS_PARAM_INSTALL_MAC); |
| if (s == NULL) { |
| BIO_printf(bio_err, "Install indicator MAC not found\n"); |
| goto end; |
| } |
| buf2 = OPENSSL_hexstr2buf(s, &len); |
| if (buf2 == NULL |
| || (size_t)len != install_mac_len |
| || memcmp(install_mac, buf2, install_mac_len) != 0) { |
| BIO_printf(bio_err, "Install indicator status mismatch\n"); |
| goto end; |
| } |
| ret = 1; |
| end: |
| OPENSSL_free(buf1); |
| OPENSSL_free(buf2); |
| NCONF_free(conf); |
| return ret; |
| } |
| |
| int fipsinstall_main(int argc, char **argv) |
| { |
| int ret = 1, verify = 0, gotkey = 0, gotdigest = 0; |
| int enable_conditional_errors = 1, enable_security_checks = 1; |
| const char *section_name = "fips_sect"; |
| const char *mac_name = "HMAC"; |
| const char *prov_name = "fips"; |
| BIO *module_bio = NULL, *mem_bio = NULL, *fout = NULL; |
| char *in_fname = NULL, *out_fname = NULL, *prog; |
| char *module_fname = NULL, *parent_config = NULL, *module_path = NULL; |
| const char *tail; |
| EVP_MAC_CTX *ctx = NULL, *ctx2 = NULL; |
| STACK_OF(OPENSSL_STRING) *opts = NULL; |
| OPTION_CHOICE o; |
| unsigned char *read_buffer = NULL; |
| unsigned char module_mac[EVP_MAX_MD_SIZE]; |
| size_t module_mac_len = EVP_MAX_MD_SIZE; |
| unsigned char install_mac[EVP_MAX_MD_SIZE]; |
| size_t install_mac_len = EVP_MAX_MD_SIZE; |
| EVP_MAC *mac = NULL; |
| CONF *conf = NULL; |
| |
| if ((opts = sk_OPENSSL_STRING_new_null()) == NULL) |
| goto end; |
| |
| prog = opt_init(argc, argv, fipsinstall_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 cleanup; |
| case OPT_HELP: |
| opt_help(fipsinstall_options); |
| ret = 0; |
| goto end; |
| case OPT_IN: |
| in_fname = opt_arg(); |
| break; |
| case OPT_OUT: |
| out_fname = opt_arg(); |
| break; |
| case OPT_NO_CONDITIONAL_ERRORS: |
| enable_conditional_errors = 0; |
| break; |
| case OPT_NO_SECURITY_CHECKS: |
| enable_security_checks = 0; |
| break; |
| case OPT_QUIET: |
| quiet = 1; |
| /* FALLTHROUGH */ |
| case OPT_NO_LOG: |
| self_test_log = 0; |
| break; |
| case OPT_CORRUPT_DESC: |
| self_test_corrupt_desc = opt_arg(); |
| break; |
| case OPT_CORRUPT_TYPE: |
| self_test_corrupt_type = opt_arg(); |
| break; |
| case OPT_PROV_NAME: |
| prov_name = opt_arg(); |
| break; |
| case OPT_MODULE: |
| module_fname = opt_arg(); |
| break; |
| case OPT_SECTION_NAME: |
| section_name = opt_arg(); |
| break; |
| case OPT_MAC_NAME: |
| mac_name = opt_arg(); |
| break; |
| case OPT_CONFIG: |
| parent_config = opt_arg(); |
| break; |
| case OPT_MACOPT: |
| if (!sk_OPENSSL_STRING_push(opts, opt_arg())) |
| goto opthelp; |
| if (strncmp(opt_arg(), "hexkey:", 7) == 0) |
| gotkey = 1; |
| else if (strncmp(opt_arg(), "digest:", 7) == 0) |
| gotdigest = 1; |
| break; |
| case OPT_VERIFY: |
| verify = 1; |
| break; |
| } |
| } |
| |
| /* No extra arguments. */ |
| argc = opt_num_rest(); |
| if (argc != 0 || (verify && in_fname == NULL)) |
| goto opthelp; |
| |
| if (parent_config != NULL) { |
| /* Test that a parent config can load the module */ |
| if (verify_module_load(parent_config)) { |
| ret = OSSL_PROVIDER_available(NULL, prov_name) ? 0 : 1; |
| if (!quiet) |
| BIO_printf(bio_err, "FIPS provider is %s\n", |
| ret == 0 ? "available" : " not available"); |
| } |
| goto end; |
| } |
| if (module_fname == NULL) |
| goto opthelp; |
| |
| tail = opt_path_end(module_fname); |
| if (tail != NULL) { |
| module_path = OPENSSL_strdup(module_fname); |
| if (module_path == NULL) |
| goto end; |
| module_path[tail - module_fname] = '\0'; |
| if (!OSSL_PROVIDER_set_default_search_path(NULL, module_path)) |
| goto end; |
| } |
| |
| if (self_test_log |
| || self_test_corrupt_desc != NULL |
| || self_test_corrupt_type != NULL) |
| OSSL_SELF_TEST_set_callback(NULL, self_test_events, NULL); |
| |
| /* Use the default FIPS HMAC digest and key if not specified. */ |
| if (!gotdigest && !sk_OPENSSL_STRING_push(opts, "digest:SHA256")) |
| goto end; |
| if (!gotkey && !sk_OPENSSL_STRING_push(opts, "hexkey:" FIPS_KEY_STRING)) |
| goto end; |
| |
| module_bio = bio_open_default(module_fname, 'r', FORMAT_BINARY); |
| if (module_bio == NULL) { |
| BIO_printf(bio_err, "Failed to open module file\n"); |
| goto end; |
| } |
| |
| read_buffer = app_malloc(BUFSIZE, "I/O buffer"); |
| if (read_buffer == NULL) |
| goto end; |
| |
| mac = EVP_MAC_fetch(NULL, mac_name, NULL); |
| if (mac == NULL) { |
| BIO_printf(bio_err, "Unable to get MAC of type %s\n", mac_name); |
| goto end; |
| } |
| |
| ctx = EVP_MAC_CTX_new(mac); |
| if (ctx == NULL) { |
| BIO_printf(bio_err, "Unable to create MAC CTX for module check\n"); |
| goto end; |
| } |
| |
| if (opts != NULL) { |
| int ok = 1; |
| OSSL_PARAM *params = |
| app_params_new_from_opts(opts, EVP_MAC_settable_ctx_params(mac)); |
| |
| if (params == NULL) |
| goto end; |
| |
| if (!EVP_MAC_CTX_set_params(ctx, params)) { |
| BIO_printf(bio_err, "MAC parameter error\n"); |
| ERR_print_errors(bio_err); |
| ok = 0; |
| } |
| app_params_free(params); |
| if (!ok) |
| goto end; |
| } |
| |
| ctx2 = EVP_MAC_CTX_dup(ctx); |
| if (ctx2 == NULL) { |
| BIO_printf(bio_err, "Unable to create MAC CTX for install indicator\n"); |
| goto end; |
| } |
| |
| if (!do_mac(ctx, read_buffer, module_bio, module_mac, &module_mac_len)) |
| goto end; |
| |
| mem_bio = BIO_new_mem_buf((const void *)INSTALL_STATUS_VAL, |
| strlen(INSTALL_STATUS_VAL)); |
| if (mem_bio == NULL) { |
| BIO_printf(bio_err, "Unable to create memory BIO\n"); |
| goto end; |
| } |
| if (!do_mac(ctx2, read_buffer, mem_bio, install_mac, &install_mac_len)) |
| goto end; |
| |
| if (verify) { |
| if (!verify_config(in_fname, section_name, module_mac, module_mac_len, |
| install_mac, install_mac_len)) |
| goto end; |
| if (!quiet) |
| BIO_printf(bio_err, "VERIFY PASSED\n"); |
| } else { |
| |
| conf = generate_config_and_load(prov_name, section_name, module_mac, |
| module_mac_len, |
| enable_conditional_errors, |
| enable_security_checks); |
| if (conf == NULL) |
| goto end; |
| if (!load_fips_prov_and_run_self_test(prov_name)) |
| goto end; |
| |
| fout = |
| out_fname == NULL ? dup_bio_out(FORMAT_TEXT) |
| : bio_open_default(out_fname, 'w', FORMAT_TEXT); |
| if (fout == NULL) { |
| BIO_printf(bio_err, "Failed to open file\n"); |
| goto end; |
| } |
| if (!write_config_fips_section(fout, section_name, |
| module_mac, module_mac_len, |
| enable_conditional_errors, |
| enable_security_checks, |
| install_mac, install_mac_len)) |
| goto end; |
| if (!quiet) |
| BIO_printf(bio_err, "INSTALL PASSED\n"); |
| } |
| |
| ret = 0; |
| end: |
| if (ret == 1) { |
| if (!quiet) |
| BIO_printf(bio_err, "%s FAILED\n", verify ? "VERIFY" : "INSTALL"); |
| ERR_print_errors(bio_err); |
| } |
| |
| cleanup: |
| OPENSSL_free(module_path); |
| BIO_free(fout); |
| BIO_free(mem_bio); |
| BIO_free(module_bio); |
| sk_OPENSSL_STRING_free(opts); |
| EVP_MAC_free(mac); |
| EVP_MAC_CTX_free(ctx2); |
| EVP_MAC_CTX_free(ctx); |
| OPENSSL_free(read_buffer); |
| free_config_and_unload(conf); |
| return ret; |
| } |
| |
| static int self_test_events(const OSSL_PARAM params[], void *arg) |
| { |
| const OSSL_PARAM *p = NULL; |
| const char *phase = NULL, *type = NULL, *desc = NULL; |
| int ret = 0; |
| |
| p = OSSL_PARAM_locate_const(params, OSSL_PROV_PARAM_SELF_TEST_PHASE); |
| if (p == NULL || p->data_type != OSSL_PARAM_UTF8_STRING) |
| goto err; |
| phase = (const char *)p->data; |
| |
| p = OSSL_PARAM_locate_const(params, OSSL_PROV_PARAM_SELF_TEST_DESC); |
| if (p == NULL || p->data_type != OSSL_PARAM_UTF8_STRING) |
| goto err; |
| desc = (const char *)p->data; |
| |
| p = OSSL_PARAM_locate_const(params, OSSL_PROV_PARAM_SELF_TEST_TYPE); |
| if (p == NULL || p->data_type != OSSL_PARAM_UTF8_STRING) |
| goto err; |
| type = (const char *)p->data; |
| |
| if (self_test_log) { |
| if (strcmp(phase, OSSL_SELF_TEST_PHASE_START) == 0) |
| BIO_printf(bio_err, "%s : (%s) : ", desc, type); |
| else if (strcmp(phase, OSSL_SELF_TEST_PHASE_PASS) == 0 |
| || strcmp(phase, OSSL_SELF_TEST_PHASE_FAIL) == 0) |
| BIO_printf(bio_err, "%s\n", phase); |
| } |
| /* |
| * The self test code will internally corrupt the KAT test result if an |
| * error is returned during the corrupt phase. |
| */ |
| if (strcmp(phase, OSSL_SELF_TEST_PHASE_CORRUPT) == 0 |
| && (self_test_corrupt_desc != NULL |
| || self_test_corrupt_type != NULL)) { |
| if (self_test_corrupt_desc != NULL |
| && strcmp(self_test_corrupt_desc, desc) != 0) |
| goto end; |
| if (self_test_corrupt_type != NULL |
| && strcmp(self_test_corrupt_type, type) != 0) |
| goto end; |
| BIO_printf(bio_err, "%s ", phase); |
| goto err; |
| } |
| end: |
| ret = 1; |
| err: |
| return ret; |
| } |
