openssl/apps/fipsinstall.c
Shane Lontis e683582bf3 Add dsa signature alg to fips provider
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10615)
2020-01-12 11:32:12 +10:00

423 lines
13 KiB
C

/*
* Copyright 2019 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 "apps.h"
#include "progs.h"
#define BUFSIZE 4096
#define DEFAULT_MAC_NAME "HMAC"
#define DEFAULT_FIPS_SECTION "fips_check_section"
/* Configuration file values */
#define VERSION_KEY "version"
#define VERSION_VAL "1"
#define INSTALL_STATUS_VAL "INSTALL_SELF_TEST_KATS_RUN"
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
} 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)"},
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"},
{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))
goto err;
if (EVP_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 and the installation indicator checksum.
*
* 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,
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
&& 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)
{
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, 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);
}
}
/*
* 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;
BIO *module_bio = NULL, *mem_bio = NULL, *fout = NULL;
char *in_fname = NULL, *out_fname = NULL, *prog, *section_name = NULL;
char *prov_name = NULL, *module_fname = NULL;
static const char *mac_name = DEFAULT_MAC_NAME;
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;
section_name = DEFAULT_FIPS_SECTION;
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 end;
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_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_MACOPT:
if (opts == NULL)
opts = sk_OPENSSL_STRING_new_null();
if (opts == NULL || !sk_OPENSSL_STRING_push(opts, opt_arg()))
goto opthelp;
break;
case OPT_VERIFY:
verify = 1;
break;
}
}
argc = opt_num_rest();
if (module_fname == NULL
|| (verify && in_fname == NULL)
|| (!verify && (out_fname == NULL || prov_name == NULL))
|| opts == NULL
|| argc != 0)
goto opthelp;
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;
BIO_printf(bio_out, "VERIFY PASSED\n");
} else {
conf = generate_config_and_load(prov_name, section_name, module_mac,
module_mac_len);
if (conf == NULL)
goto end;
if (!load_fips_prov_and_run_self_test(prov_name))
goto end;
fout = 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, install_mac,
install_mac_len))
goto end;
BIO_printf(bio_out, "INSTALL PASSED\n");
}
ret = 0;
end:
if (ret == 1) {
BIO_printf(bio_err, "%s FAILED\n", verify ? "VERIFY" : "INSTALL");
ERR_print_errors(bio_err);
}
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;
}