| /* |
| * Self-test demonstration program |
| * |
| * Copyright The Mbed TLS Contributors |
| * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later |
| */ |
| |
| #include "mbedtls/build_info.h" |
| |
| #include "mbedtls/entropy.h" |
| #include "mbedtls/hmac_drbg.h" |
| #include "mbedtls/ctr_drbg.h" |
| #include "mbedtls/dhm.h" |
| #include "mbedtls/gcm.h" |
| #include "mbedtls/ccm.h" |
| #include "mbedtls/cmac.h" |
| #include "mbedtls/md5.h" |
| #include "mbedtls/ripemd160.h" |
| #include "mbedtls/sha1.h" |
| #include "mbedtls/sha256.h" |
| #include "mbedtls/sha512.h" |
| #include "mbedtls/sha3.h" |
| #include "mbedtls/des.h" |
| #include "mbedtls/aes.h" |
| #include "mbedtls/camellia.h" |
| #include "mbedtls/aria.h" |
| #include "mbedtls/chacha20.h" |
| #include "mbedtls/poly1305.h" |
| #include "mbedtls/chachapoly.h" |
| #include "mbedtls/base64.h" |
| #include "mbedtls/bignum.h" |
| #include "mbedtls/rsa.h" |
| #include "mbedtls/x509.h" |
| #include "mbedtls/pkcs5.h" |
| #include "mbedtls/ecp.h" |
| #include "mbedtls/ecjpake.h" |
| #include "mbedtls/timing.h" |
| #include "mbedtls/nist_kw.h" |
| #include "mbedtls/debug.h" |
| |
| #include <limits.h> |
| #include <string.h> |
| |
| #include "mbedtls/platform.h" |
| |
| #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) |
| #include "mbedtls/memory_buffer_alloc.h" |
| #endif |
| |
| |
| #if defined MBEDTLS_SELF_TEST |
| /* Sanity check for malloc. This is not expected to fail, and is rather |
| * intended to display potentially useful information about the platform, |
| * in particular the behavior of malloc(0). */ |
| static int calloc_self_test(int verbose) |
| { |
| int failures = 0; |
| void *empty1 = mbedtls_calloc(0, 1); |
| void *empty2 = mbedtls_calloc(0, 1); |
| void *buffer1 = mbedtls_calloc(1, 1); |
| void *buffer2 = mbedtls_calloc(1, 1); |
| unsigned int buffer_3_size = 256; |
| unsigned int buffer_4_size = 4097; /* Allocate more than the usual page size */ |
| unsigned char *buffer3 = mbedtls_calloc(buffer_3_size, 1); |
| unsigned char *buffer4 = mbedtls_calloc(buffer_4_size, 1); |
| |
| if (empty1 == NULL && empty2 == NULL) { |
| if (verbose) { |
| mbedtls_printf(" CALLOC(0,1): passed (NULL)\n"); |
| } |
| } else if (empty1 == NULL || empty2 == NULL) { |
| if (verbose) { |
| mbedtls_printf(" CALLOC(0,1): failed (mix of NULL and non-NULL)\n"); |
| } |
| ++failures; |
| } else if (empty1 == empty2) { |
| if (verbose) { |
| mbedtls_printf(" CALLOC(0,1): passed (same non-null)\n"); |
| } |
| empty2 = NULL; |
| } else { |
| if (verbose) { |
| mbedtls_printf(" CALLOC(0,1): passed (distinct non-null)\n"); |
| } |
| } |
| |
| mbedtls_free(empty1); |
| mbedtls_free(empty2); |
| |
| empty1 = mbedtls_calloc(1, 0); |
| empty2 = mbedtls_calloc(1, 0); |
| if (empty1 == NULL && empty2 == NULL) { |
| if (verbose) { |
| mbedtls_printf(" CALLOC(1,0): passed (NULL)\n"); |
| } |
| } else if (empty1 == NULL || empty2 == NULL) { |
| if (verbose) { |
| mbedtls_printf(" CALLOC(1,0): failed (mix of NULL and non-NULL)\n"); |
| } |
| ++failures; |
| } else if (empty1 == empty2) { |
| if (verbose) { |
| mbedtls_printf(" CALLOC(1,0): passed (same non-null)\n"); |
| } |
| empty2 = NULL; |
| } else { |
| if (verbose) { |
| mbedtls_printf(" CALLOC(1,0): passed (distinct non-null)\n"); |
| } |
| } |
| |
| if (buffer1 == NULL || buffer2 == NULL) { |
| if (verbose) { |
| mbedtls_printf(" CALLOC(1): failed (NULL)\n"); |
| } |
| ++failures; |
| } else if (buffer1 == buffer2) { |
| if (verbose) { |
| mbedtls_printf(" CALLOC(1): failed (same buffer twice)\n"); |
| } |
| ++failures; |
| buffer2 = NULL; |
| } else { |
| if (verbose) { |
| mbedtls_printf(" CALLOC(1): passed\n"); |
| } |
| } |
| |
| mbedtls_free(buffer1); |
| buffer1 = mbedtls_calloc(1, 1); |
| if (buffer1 == NULL) { |
| if (verbose) { |
| mbedtls_printf(" CALLOC(1 again): failed (NULL)\n"); |
| } |
| ++failures; |
| } else { |
| if (verbose) { |
| mbedtls_printf(" CALLOC(1 again): passed\n"); |
| } |
| } |
| |
| for (unsigned int i = 0; i < buffer_3_size; i++) { |
| if (buffer3[i] != 0) { |
| ++failures; |
| if (verbose) { |
| mbedtls_printf(" CALLOC(%u): failed (memory not initialized to 0)\n", |
| buffer_3_size); |
| } |
| break; |
| } |
| } |
| |
| for (unsigned int i = 0; i < buffer_4_size; i++) { |
| if (buffer4[i] != 0) { |
| ++failures; |
| if (verbose) { |
| mbedtls_printf(" CALLOC(%u): failed (memory not initialized to 0)\n", |
| buffer_4_size); |
| } |
| break; |
| } |
| } |
| |
| if (verbose) { |
| mbedtls_printf("\n"); |
| } |
| mbedtls_free(empty1); |
| mbedtls_free(empty2); |
| mbedtls_free(buffer1); |
| mbedtls_free(buffer2); |
| mbedtls_free(buffer3); |
| mbedtls_free(buffer4); |
| return failures; |
| } |
| #endif /* MBEDTLS_SELF_TEST */ |
| |
| static int test_snprintf(size_t n, const char *ref_buf, int ref_ret) |
| { |
| int ret; |
| char buf[10] = "xxxxxxxxx"; |
| const char ref[10] = "xxxxxxxxx"; |
| |
| ret = mbedtls_snprintf(buf, n, "%s", "123"); |
| if (ret < 0 || (size_t) ret >= n) { |
| ret = -1; |
| } |
| |
| if (strncmp(ref_buf, buf, sizeof(buf)) != 0 || |
| ref_ret != ret || |
| memcmp(buf + n, ref + n, sizeof(buf) - n) != 0) { |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| static int run_test_snprintf(void) |
| { |
| return test_snprintf(0, "xxxxxxxxx", -1) != 0 || |
| test_snprintf(1, "", -1) != 0 || |
| test_snprintf(2, "1", -1) != 0 || |
| test_snprintf(3, "12", -1) != 0 || |
| test_snprintf(4, "123", 3) != 0 || |
| test_snprintf(5, "123", 3) != 0; |
| } |
| |
| /* |
| * Check if a seed file is present, and if not create one for the entropy |
| * self-test. If this fails, we attempt the test anyway, so no error is passed |
| * back. |
| */ |
| #if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_ENTROPY_C) |
| #if defined(MBEDTLS_ENTROPY_NV_SEED) && !defined(MBEDTLS_NO_PLATFORM_ENTROPY) |
| static void create_entropy_seed_file(void) |
| { |
| int result; |
| size_t output_len = 0; |
| unsigned char seed_value[MBEDTLS_ENTROPY_BLOCK_SIZE]; |
| |
| /* Attempt to read the entropy seed file. If this fails - attempt to write |
| * to the file to ensure one is present. */ |
| result = mbedtls_platform_std_nv_seed_read(seed_value, |
| MBEDTLS_ENTROPY_BLOCK_SIZE); |
| if (0 == result) { |
| return; |
| } |
| |
| result = mbedtls_platform_entropy_poll(NULL, |
| seed_value, |
| MBEDTLS_ENTROPY_BLOCK_SIZE, |
| &output_len); |
| if (0 != result) { |
| return; |
| } |
| |
| if (MBEDTLS_ENTROPY_BLOCK_SIZE != output_len) { |
| return; |
| } |
| |
| mbedtls_platform_std_nv_seed_write(seed_value, MBEDTLS_ENTROPY_BLOCK_SIZE); |
| } |
| #endif |
| |
| int mbedtls_entropy_self_test_wrapper(int verbose) |
| { |
| #if defined(MBEDTLS_ENTROPY_NV_SEED) && !defined(MBEDTLS_NO_PLATFORM_ENTROPY) |
| create_entropy_seed_file(); |
| #endif |
| return mbedtls_entropy_self_test(verbose); |
| } |
| #endif |
| |
| #if defined(MBEDTLS_SELF_TEST) |
| #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) |
| int mbedtls_memory_buffer_alloc_free_and_self_test(int verbose) |
| { |
| if (verbose != 0) { |
| #if defined(MBEDTLS_MEMORY_DEBUG) |
| mbedtls_memory_buffer_alloc_status(); |
| #endif |
| } |
| mbedtls_memory_buffer_alloc_free(); |
| return mbedtls_memory_buffer_alloc_self_test(verbose); |
| } |
| #endif |
| |
| typedef struct { |
| const char *name; |
| int (*function)(int); |
| } selftest_t; |
| |
| const selftest_t selftests[] = |
| { |
| { "calloc", calloc_self_test }, |
| #if defined(MBEDTLS_MD5_C) |
| { "md5", mbedtls_md5_self_test }, |
| #endif |
| #if defined(MBEDTLS_RIPEMD160_C) |
| { "ripemd160", mbedtls_ripemd160_self_test }, |
| #endif |
| #if defined(MBEDTLS_SHA1_C) |
| { "sha1", mbedtls_sha1_self_test }, |
| #endif |
| #if defined(MBEDTLS_SHA224_C) |
| { "sha224", mbedtls_sha224_self_test }, |
| #endif |
| #if defined(MBEDTLS_SHA256_C) |
| { "sha256", mbedtls_sha256_self_test }, |
| #endif |
| #if defined(MBEDTLS_SHA384_C) |
| { "sha384", mbedtls_sha384_self_test }, |
| #endif |
| #if defined(MBEDTLS_SHA512_C) |
| { "sha512", mbedtls_sha512_self_test }, |
| #endif |
| #if defined(MBEDTLS_SHA3_C) |
| { "sha3", mbedtls_sha3_self_test }, |
| #endif |
| #if defined(MBEDTLS_DES_C) |
| { "des", mbedtls_des_self_test }, |
| #endif |
| #if defined(MBEDTLS_AES_C) |
| { "aes", mbedtls_aes_self_test }, |
| #endif |
| #if defined(MBEDTLS_GCM_C) && defined(MBEDTLS_AES_C) |
| { "gcm", mbedtls_gcm_self_test }, |
| #endif |
| #if defined(MBEDTLS_CCM_C) && defined(MBEDTLS_AES_C) |
| { "ccm", mbedtls_ccm_self_test }, |
| #endif |
| #if defined(MBEDTLS_NIST_KW_C) && defined(MBEDTLS_AES_C) |
| { "nist_kw", mbedtls_nist_kw_self_test }, |
| #endif |
| #if defined(MBEDTLS_CMAC_C) |
| { "cmac", mbedtls_cmac_self_test }, |
| #endif |
| #if defined(MBEDTLS_CHACHA20_C) |
| { "chacha20", mbedtls_chacha20_self_test }, |
| #endif |
| #if defined(MBEDTLS_POLY1305_C) |
| { "poly1305", mbedtls_poly1305_self_test }, |
| #endif |
| #if defined(MBEDTLS_CHACHAPOLY_C) |
| { "chacha20-poly1305", mbedtls_chachapoly_self_test }, |
| #endif |
| #if defined(MBEDTLS_BASE64_C) |
| { "base64", mbedtls_base64_self_test }, |
| #endif |
| #if defined(MBEDTLS_BIGNUM_C) |
| { "mpi", mbedtls_mpi_self_test }, |
| #endif |
| #if defined(MBEDTLS_RSA_C) |
| { "rsa", mbedtls_rsa_self_test }, |
| #endif |
| #if defined(MBEDTLS_CAMELLIA_C) |
| { "camellia", mbedtls_camellia_self_test }, |
| #endif |
| #if defined(MBEDTLS_ARIA_C) |
| { "aria", mbedtls_aria_self_test }, |
| #endif |
| #if defined(MBEDTLS_CTR_DRBG_C) |
| { "ctr_drbg", mbedtls_ctr_drbg_self_test }, |
| #endif |
| #if defined(MBEDTLS_HMAC_DRBG_C) |
| { "hmac_drbg", mbedtls_hmac_drbg_self_test }, |
| #endif |
| #if defined(MBEDTLS_ECP_C) |
| { "ecp", mbedtls_ecp_self_test }, |
| #endif |
| #if defined(MBEDTLS_ECJPAKE_C) |
| { "ecjpake", mbedtls_ecjpake_self_test }, |
| #endif |
| #if defined(MBEDTLS_DHM_C) |
| { "dhm", mbedtls_dhm_self_test }, |
| #endif |
| #if defined(MBEDTLS_ENTROPY_C) |
| { "entropy", mbedtls_entropy_self_test_wrapper }, |
| #endif |
| #if defined(MBEDTLS_PKCS5_C) |
| { "pkcs5", mbedtls_pkcs5_self_test }, |
| #endif |
| /* Heap test comes last */ |
| #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) |
| { "memory_buffer_alloc", mbedtls_memory_buffer_alloc_free_and_self_test }, |
| #endif |
| { NULL, NULL } |
| }; |
| #endif /* MBEDTLS_SELF_TEST */ |
| |
| int main(int argc, char *argv[]) |
| { |
| #if defined(MBEDTLS_SELF_TEST) |
| const selftest_t *test; |
| #endif /* MBEDTLS_SELF_TEST */ |
| char **argp; |
| int v = 1; /* v=1 for verbose mode */ |
| int exclude_mode = 0; |
| int suites_tested = 0, suites_failed = 0; |
| #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) && defined(MBEDTLS_SELF_TEST) |
| unsigned char buf[1000000]; |
| #endif |
| void *pointer; |
| |
| /* |
| * Check some basic platform requirements as specified in README.md |
| */ |
| if (SIZE_MAX < INT_MAX || SIZE_MAX < UINT_MAX) { |
| mbedtls_printf("SIZE_MAX must be at least as big as INT_MAX and UINT_MAX\n"); |
| mbedtls_exit(MBEDTLS_EXIT_FAILURE); |
| } |
| |
| if (sizeof(int) < 4) { |
| mbedtls_printf("int must be at least 32 bits\n"); |
| mbedtls_exit(MBEDTLS_EXIT_FAILURE); |
| } |
| |
| if (sizeof(size_t) < 4) { |
| mbedtls_printf("size_t must be at least 32 bits\n"); |
| mbedtls_exit(MBEDTLS_EXIT_FAILURE); |
| } |
| |
| uint32_t endian_test = 0x12345678; |
| char *p = (char *) &endian_test; |
| if (!(p[0] == 0x12 && p[1] == 0x34 && p[2] == 0x56 && p[3] == 0x78) && |
| !(p[3] == 0x12 && p[2] == 0x34 && p[1] == 0x56 && p[0] == 0x78)) { |
| mbedtls_printf("Mixed-endian platforms are not supported\n"); |
| mbedtls_exit(MBEDTLS_EXIT_FAILURE); |
| } |
| |
| /* |
| * The C standard doesn't guarantee that all-bits-0 is the representation |
| * of a NULL pointer. We do however use that in our code for initializing |
| * structures, which should work on every modern platform. Let's be sure. |
| */ |
| memset(&pointer, 0, sizeof(void *)); |
| if (pointer != NULL) { |
| mbedtls_printf("all-bits-zero is not a NULL pointer\n"); |
| mbedtls_exit(MBEDTLS_EXIT_FAILURE); |
| } |
| |
| /* |
| * The C standard allows padding bits in the representation |
| * of standard integer types, but our code does currently not |
| * support them. |
| * |
| * Here we check that the underlying C implementation doesn't |
| * use padding bits, and fail cleanly if it does. |
| * |
| * The check works by casting the maximum value representable |
| * by a given integer type into the unpadded integer type of the |
| * same bit-width and checking that it agrees with the maximum value |
| * of that unpadded type. For example, for a 4-byte int, |
| * MAX_INT should be 0x7fffffff in int32_t. This assumes that |
| * CHAR_BIT == 8, which is checked in check_config.h. |
| * |
| * We assume that [u]intxx_t exist and that they don't |
| * have padding bits, as the standard requires. |
| */ |
| |
| #define CHECK_PADDING_SIGNED(TYPE, NAME) \ |
| do \ |
| { \ |
| if (sizeof(TYPE) == 2 || sizeof(TYPE) == 4 || \ |
| sizeof(TYPE) == 8) { \ |
| if ((sizeof(TYPE) == 2 && \ |
| (int16_t) NAME ## _MAX != 0x7FFF) || \ |
| (sizeof(TYPE) == 4 && \ |
| (int32_t) NAME ## _MAX != 0x7FFFFFFF) || \ |
| (sizeof(TYPE) == 8 && \ |
| (int64_t) NAME ## _MAX != 0x7FFFFFFFFFFFFFFF)) \ |
| { \ |
| mbedtls_printf("Type '" #TYPE "' has padding bits\n"); \ |
| mbedtls_exit(MBEDTLS_EXIT_FAILURE); \ |
| } \ |
| } else { \ |
| mbedtls_printf("Padding checks only implemented for types of size 2, 4 or 8" \ |
| " - cannot check type '" #TYPE "' of size %" MBEDTLS_PRINTF_SIZET "\n", \ |
| sizeof(TYPE)); \ |
| mbedtls_exit(MBEDTLS_EXIT_FAILURE); \ |
| } \ |
| } while (0) |
| |
| #define CHECK_PADDING_UNSIGNED(TYPE, NAME) \ |
| do \ |
| { \ |
| if ((sizeof(TYPE) == 2 && \ |
| (uint16_t) NAME ## _MAX != 0xFFFF) || \ |
| (sizeof(TYPE) == 4 && \ |
| (uint32_t) NAME ## _MAX != 0xFFFFFFFF) || \ |
| (sizeof(TYPE) == 8 && \ |
| (uint64_t) NAME ## _MAX != 0xFFFFFFFFFFFFFFFF)) \ |
| { \ |
| mbedtls_printf("Type '" #TYPE "' has padding bits\n"); \ |
| mbedtls_exit(MBEDTLS_EXIT_FAILURE); \ |
| } \ |
| } while (0) |
| |
| CHECK_PADDING_SIGNED(short, SHRT); |
| CHECK_PADDING_SIGNED(int, INT); |
| CHECK_PADDING_SIGNED(long, LONG); |
| CHECK_PADDING_SIGNED(long long, LLONG); |
| CHECK_PADDING_SIGNED(ptrdiff_t, PTRDIFF); |
| |
| CHECK_PADDING_UNSIGNED(unsigned short, USHRT); |
| CHECK_PADDING_UNSIGNED(unsigned, UINT); |
| CHECK_PADDING_UNSIGNED(unsigned long, ULONG); |
| CHECK_PADDING_UNSIGNED(unsigned long long, ULLONG); |
| CHECK_PADDING_UNSIGNED(size_t, SIZE); |
| |
| #undef CHECK_PADDING_SIGNED |
| #undef CHECK_PADDING_UNSIGNED |
| |
| /* |
| * Make sure we have a snprintf that correctly zero-terminates |
| */ |
| if (run_test_snprintf() != 0) { |
| mbedtls_printf("the snprintf implementation is broken\n"); |
| mbedtls_exit(MBEDTLS_EXIT_FAILURE); |
| } |
| |
| for (argp = argv + (argc >= 1 ? 1 : argc); *argp != NULL; ++argp) { |
| if (strcmp(*argp, "--quiet") == 0 || |
| strcmp(*argp, "-q") == 0) { |
| v = 0; |
| } else if (strcmp(*argp, "--exclude") == 0 || |
| strcmp(*argp, "-x") == 0) { |
| exclude_mode = 1; |
| } else { |
| break; |
| } |
| } |
| |
| if (v != 0) { |
| mbedtls_printf("\n"); |
| } |
| |
| #if defined(MBEDTLS_SELF_TEST) |
| |
| #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) |
| mbedtls_memory_buffer_alloc_init(buf, sizeof(buf)); |
| #endif |
| |
| if (*argp != NULL && exclude_mode == 0) { |
| /* Run the specified tests */ |
| for (; *argp != NULL; argp++) { |
| for (test = selftests; test->name != NULL; test++) { |
| if (!strcmp(*argp, test->name)) { |
| if (test->function(v) != 0) { |
| suites_failed++; |
| } |
| suites_tested++; |
| break; |
| } |
| } |
| if (test->name == NULL) { |
| mbedtls_printf(" Test suite %s not available -> failed\n\n", *argp); |
| suites_failed++; |
| } |
| } |
| } else { |
| /* Run all the tests except excluded ones */ |
| for (test = selftests; test->name != NULL; test++) { |
| if (exclude_mode) { |
| char **excluded; |
| for (excluded = argp; *excluded != NULL; ++excluded) { |
| if (!strcmp(*excluded, test->name)) { |
| break; |
| } |
| } |
| if (*excluded) { |
| if (v) { |
| mbedtls_printf(" Skip: %s\n", test->name); |
| } |
| continue; |
| } |
| } |
| if (test->function(v) != 0) { |
| suites_failed++; |
| } |
| suites_tested++; |
| } |
| } |
| |
| #else |
| (void) exclude_mode; |
| mbedtls_printf(" MBEDTLS_SELF_TEST not defined.\n"); |
| #endif |
| |
| if (v != 0) { |
| mbedtls_printf(" Executed %d test suites\n\n", suites_tested); |
| |
| if (suites_failed > 0) { |
| mbedtls_printf(" [ %d tests FAIL ]\n\n", suites_failed); |
| } else { |
| mbedtls_printf(" [ All tests PASS ]\n\n"); |
| } |
| } |
| |
| if (suites_failed > 0) { |
| mbedtls_exit(MBEDTLS_EXIT_FAILURE); |
| } |
| |
| mbedtls_exit(MBEDTLS_EXIT_SUCCESS); |
| } |