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/* Copyright (c) 2017, Google Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
#include <openssl/crypto.h>
#include "../../internal.h"
#include "../delocate.h"
int FIPS_mode(void) {
#if defined(BORINGSSL_FIPS) && !defined(OPENSSL_ASAN)
return 1;
#else
return 0;
#endif
}
int FIPS_mode_set(int on) { return on == FIPS_mode(); }
const char *FIPS_module_name(void) { return "BoringCrypto"; }
uint32_t FIPS_version(void) {
return 0;
}
int FIPS_query_algorithm_status(const char *algorithm) {
#if defined(BORINGSSL_FIPS)
static const char kApprovedAlgorithms[][13] = {
"AES-CBC",
"AES-CCM",
"AES-CTR",
"AES-ECB",
"AES-GCM",
"AES-KW",
"AES-KWP",
"ctrDRBG",
"ECC-SSC",
"ECDSA-sign",
"ECDSA-verify",
"FFC-SSC",
"HMAC",
"RSA-sign",
"RSA-verify",
"SHA-1",
"SHA2-224",
"SHA2-256",
"SHA2-384",
"SHA2-512",
"SHA2-512/256",
};
for (size_t i = 0; i < OPENSSL_ARRAY_SIZE(kApprovedAlgorithms); i++) {
if (strcmp(algorithm, kApprovedAlgorithms[i]) == 0) {
return 1;
}
}
#endif // BORINGSSL_FIPS
return 0;
}
#if defined(BORINGSSL_FIPS_COUNTERS)
size_t FIPS_read_counter(enum fips_counter_t counter) {
if (counter < 0 || counter > fips_counter_max) {
abort();
}
const size_t *array =
CRYPTO_get_thread_local(OPENSSL_THREAD_LOCAL_FIPS_COUNTERS);
if (!array) {
return 0;
}
return array[counter];
}
void boringssl_fips_inc_counter(enum fips_counter_t counter) {
if (counter < 0 || counter > fips_counter_max) {
abort();
}
size_t *array =
CRYPTO_get_thread_local(OPENSSL_THREAD_LOCAL_FIPS_COUNTERS);
if (!array) {
const size_t num_bytes = sizeof(size_t) * (fips_counter_max + 1);
array = OPENSSL_malloc(num_bytes);
if (!array) {
return;
}
OPENSSL_memset(array, 0, num_bytes);
if (!CRYPTO_set_thread_local(OPENSSL_THREAD_LOCAL_FIPS_COUNTERS, array,
OPENSSL_free)) {
// |OPENSSL_free| has already been called by |CRYPTO_set_thread_local|.
return;
}
}
array[counter]++;
}
#else
size_t FIPS_read_counter(enum fips_counter_t counter) { return 0; }
// boringssl_fips_inc_counter is a no-op, inline function in internal.h in this
// case. That should let the compiler optimise away the callsites.
#endif
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