/* $NetBSD: a_md5encrypt.c,v 1.3 2020/05/25 20:47:36 christos Exp $ */ #include "config.h" #include "unity.h" #ifdef OPENSSL # include "openssl/err.h" # include "openssl/rand.h" # include "openssl/evp.h" #endif #include "ntp.h" #include "ntp_stdlib.h" u_long current_time = 4; /* * Example packet with MD5 hash calculated manually. */ const int keytype = KEY_TYPE_MD5; const u_char *key = (const u_char*)"abcdefgh"; const u_short keyLength = 8; const u_char *packet = (const u_char*)"ijklmnopqrstuvwx"; #define packetLength 16 #define keyIdLength 4 #define digestLength 16 #define totalLength (packetLength + keyIdLength + digestLength) union { u_char u8 [totalLength]; uint32_t u32[1]; } expectedPacket = { "ijklmnopqrstuvwx\0\0\0\0\x0c\x0e\x84\xcf\x0b\xb7\xa8\x68\x8e\x52\x38\xdb\xbc\x1c\x39\x53" }; union { u_char u8 [totalLength]; uint32_t u32[1]; } invalidPacket = { "ijklmnopqrstuvwx\0\0\0\0\x0c\x0e\x84\xcf\x0b\xb7\xa8\x68\x8e\x52\x38\xdb\xbc\x1c\x39\x54" }; void test_Encrypt(void); void test_DecryptValid(void); void test_DecryptInvalid(void); void test_IPv4AddressToRefId(void); void test_IPv6AddressToRefId(void); void test_Encrypt(void) { u_int32 *packetPtr; int length; packetPtr = emalloc_zero(totalLength * sizeof(*packetPtr)); memcpy(packetPtr, packet, packetLength); length = MD5authencrypt(keytype, key, keyLength, packetPtr, packetLength); TEST_ASSERT_TRUE(MD5authdecrypt(keytype, key, keyLength, packetPtr, packetLength, length)); TEST_ASSERT_EQUAL(20, length); TEST_ASSERT_EQUAL_MEMORY(expectedPacket.u8, packetPtr, totalLength); free(packetPtr); } void test_DecryptValid(void) { TEST_ASSERT_TRUE(MD5authdecrypt(keytype, key, keyLength, expectedPacket.u32, packetLength, 20)); } void test_DecryptInvalid(void) { TEST_ASSERT_FALSE(MD5authdecrypt(keytype, key, keyLength, invalidPacket.u32, packetLength, 20)); } void test_IPv4AddressToRefId(void) { sockaddr_u addr; addr.sa4.sin_family = AF_INET; u_int32 address; addr.sa4.sin_port = htons(80); address = inet_addr("192.0.2.1"); addr.sa4.sin_addr.s_addr = address; TEST_ASSERT_EQUAL(address, addr2refid(&addr)); } void test_IPv6AddressToRefId(void) { const int expected = 0x75cffd52; const struct in6_addr address = { { { 0x20, 0x01, 0x0d, 0xb8, 0x85, 0xa3, 0x08, 0xd3, 0x13, 0x19, 0x8a, 0x2e, 0x03, 0x70, 0x73, 0x34 } } }; sockaddr_u addr; addr.sa6.sin6_family = AF_INET6; addr.sa6.sin6_addr = address; #if 0 TEST_ASSERT_EQUAL(expected, addr2refid(&addr)); #else (void)expected; TEST_IGNORE_MESSAGE("Skipping because of big endian problem?"); #endif }