contrib/ntp/tests/libntp/g_a_md5encrypt.cpp

   1 #include "g_libntptest.h"
   2
   3 extern "C" {
   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
  13 class a_md5encryptTest : public libntptest {
  14 protected:
  15 };
  16
  17 /*
  18  * Example packet with MD5 hash calculated manually.
  19  */
  20 const int keytype = KEY_TYPE_MD5;
  21 const char *key = "abcdefgh";
  22 const u_short keyLength = 8;
  23 const char *packet = "ijklmnopqrstuvwx";
  24 const int packetLength = 16;
  25 const int keyIdLength = 4;
  26 const int digestLength = 16;
  27 const int totalLength = packetLength + keyIdLength + digestLength;
  28 const char *expectedPacket = "ijklmnopqrstuvwx\0\0\0\0\x0c\x0e\x84\xcf\x0b\xb7\xa8\x68\x8e\x52\x38\xdb\xbc\x1c\x39\x53";
  29
  30 TEST_F(a_md5encryptTest, Encrypt) {
  31         char *packetPtr = new char[totalLength];
  32         memset(packetPtr+packetLength, 0, keyIdLength);
  33         memcpy(packetPtr, packet, packetLength);
  34
  35         cache_secretsize = keyLength;
  36
  37         int length =  MD5authencrypt(keytype, (u_char*)key, (u_int32*)packetPtr, packetLength);
  38
  39         EXPECT_TRUE(MD5authdecrypt(keytype, (u_char*)key, (u_int32*)packetPtr, packetLength, length));
  40
  41         EXPECT_EQ(20, length);
  42         EXPECT_TRUE(memcmp(expectedPacket, packetPtr, totalLength) == 0);
  43
  44         delete[] packetPtr;
  45 }
  46
  47 TEST_F(a_md5encryptTest, DecryptValid) {
  48         cache_secretsize = keyLength;
  49
  50         EXPECT_TRUE(MD5authdecrypt(keytype, (u_char*)key, (u_int32*)expectedPacket, packetLength, 20));
  51 }
  52
  53 TEST_F(a_md5encryptTest, DecryptInvalid) {
  54         cache_secretsize = keyLength;
  55
  56         const char *invalidPacket = "ijklmnopqrstuvwx\0\0\0\0\x0c\x0e\x84\xcf\x0b\xb7\xa8\x68\x8e\x52\x38\xdb\xbc\x1c\x39\x54";
  57
  58         EXPECT_FALSE(MD5authdecrypt(keytype, (u_char*)key, (u_int32*)invalidPacket, packetLength, 20));
  59 }
  60
  61 TEST_F(a_md5encryptTest, IPv4AddressToRefId) {
  62         sockaddr_u addr;
  63         addr.sa4.sin_family = AF_INET;
  64         addr.sa4.sin_port = htons(80);
  65
  66         u_int32 address = inet_addr("192.0.2.1");
  67         addr.sa4.sin_addr.s_addr = address;
  68
  69         EXPECT_EQ(address, addr2refid(&addr));
  70 }
  71
  72 TEST_F(a_md5encryptTest, IPv6AddressToRefId) {
  73         const struct in6_addr address = {
  74                 0x20, 0x01, 0x0d, 0xb8,
  75         0x85, 0xa3, 0x08, 0xd3,
  76         0x13, 0x19, 0x8a, 0x2e,
  77         0x03, 0x70, 0x73, 0x34
  78         };
  79
  80
  81         sockaddr_u addr;
  82         addr.sa6.sin6_family = AF_INET6;
  83
  84         addr.sa6.sin6_addr = address;
  85
  86         const int expected = 0x75cffd52;
  87
  88         EXPECT_EQ(expected, addr2refid(&addr));
  89 }