contrib/ntp/tests/libntp/a_md5encrypt.c

   1 #include "config.h"
   2 #include "unity.h"
   3
   4 #ifdef OPENSSL
   5 # include "openssl/err.h"
   6 # include "openssl/rand.h"
   7 # include "openssl/evp.h"
   8 #endif
   9 #include "ntp.h"
  10 #include "ntp_stdlib.h"
  11
  12 u_long current_time = 4;
  13
  14
  15 /*
  16  * Example packet with MD5 hash calculated manually.
  17  */
  18 const int keytype = KEY_TYPE_MD5;
  19 const u_char *key = (const u_char*)"abcdefgh";
  20 const u_short keyLength = 8;
  21 const u_char *packet = (const u_char*)"ijklmnopqrstuvwx";
  22 #define packetLength 16
  23 #define keyIdLength  4
  24 #define digestLength 16
  25 #define totalLength (packetLength + keyIdLength + digestLength)
  26 union {
  27         u_char          u8 [totalLength];
  28         uint32_t        u32[1];
  29 } expectedPacket = {
  30         "ijklmnopqrstuvwx\0\0\0\0\x0c\x0e\x84\xcf\x0b\xb7\xa8\x68\x8e\x52\x38\xdb\xbc\x1c\x39\x53"
  31 };
  32 union {
  33         u_char          u8 [totalLength];
  34         uint32_t        u32[1];
  35 } invalidPacket = {
  36         "ijklmnopqrstuvwx\0\0\0\0\x0c\x0e\x84\xcf\x0b\xb7\xa8\x68\x8e\x52\x38\xdb\xbc\x1c\x39\x54"
  37 };
  38
  39
  40 void test_Encrypt(void);
  41 void test_DecryptValid(void);
  42 void test_DecryptInvalid(void);
  43 void test_IPv4AddressToRefId(void);
  44 void test_IPv6AddressToRefId(void);
  45
  46
  47 void
  48 test_Encrypt(void) {
  49         u_int32 *packetPtr;
  50         int length;
  51
  52         packetPtr = emalloc_zero(totalLength * sizeof(*packetPtr));
  53         memcpy(packetPtr, packet, packetLength);
  54
  55         cache_secretsize = keyLength;
  56
  57         length = MD5authencrypt(keytype, key, packetPtr, packetLength);
  58
  59         TEST_ASSERT_TRUE(MD5authdecrypt(keytype, key, packetPtr, packetLength, length));
  60
  61         TEST_ASSERT_EQUAL(20, length);
  62         TEST_ASSERT_EQUAL_MEMORY(expectedPacket.u8, packetPtr, totalLength);
  63
  64         free(packetPtr);
  65 }
  66
  67 void
  68 test_DecryptValid(void) {
  69         cache_secretsize = keyLength;
  70         TEST_ASSERT_TRUE(MD5authdecrypt(keytype, key, expectedPacket.u32, packetLength, 20));
  71 }
  72
  73 void
  74 test_DecryptInvalid(void) {
  75         cache_secretsize = keyLength;
  76         TEST_ASSERT_FALSE(MD5authdecrypt(keytype, key, invalidPacket.u32, packetLength, 20));
  77 }
  78
  79 void
  80 test_IPv4AddressToRefId(void) {
  81         sockaddr_u addr;
  82         addr.sa4.sin_family = AF_INET;
  83         u_int32 address;
  84
  85         addr.sa4.sin_port = htons(80);
  86
  87         address = inet_addr("192.0.2.1");
  88         addr.sa4.sin_addr.s_addr = address;
  89
  90         TEST_ASSERT_EQUAL(address, addr2refid(&addr));
  91 }
  92
  93 void
  94 test_IPv6AddressToRefId(void) {
  95         const int expected = 0x75cffd52;
  96         const struct in6_addr address = { { {
  97                 0x20, 0x01, 0x0d, 0xb8,
  98                 0x85, 0xa3, 0x08, 0xd3,
  99                 0x13, 0x19, 0x8a, 0x2e,
 100                 0x03, 0x70, 0x73, 0x34
 101         } } };
 102         sockaddr_u addr;
 103
 104         addr.sa6.sin6_family = AF_INET6;
 105
 106         addr.sa6.sin6_addr = address;
 107
 108
 109 #if 0
 110         TEST_ASSERT_EQUAL(expected, addr2refid(&addr));
 111 #else
 112         (void)expected;
 113         TEST_IGNORE_MESSAGE("Skipping because of big endian problem?");
 114 #endif
 115 }