1 files changed, 89 insertions, 0 deletions
diff --git a/tests/libntp/g_a_md5encrypt.cpp b/tests/libntp/g_a_md5encrypt.cpp
new file mode 100644
index 0000000000000..691bf78e27228
--- /dev/null
+++ b/tests/libntp/g_a_md5encrypt.cpp
@@ -0,0 +1,89 @@
+#include "g_libntptest.h"
+
+extern "C" {
+#ifdef OPENSSL
+# include "openssl/err.h"
+# include "openssl/rand.h"
+# include "openssl/evp.h"
+#endif
+#include "ntp.h"
+#include "ntp_stdlib.h"
+};
+
+class a_md5encryptTest : public libntptest {
+protected:
+};
+
+/*
+ * Example packet with MD5 hash calculated manually.
+ */
+const int keytype = KEY_TYPE_MD5;
+const char *key = "abcdefgh";
+const u_short keyLength = 8;
+const char *packet = "ijklmnopqrstuvwx";
+const int packetLength = 16;
+const int keyIdLength = 4;
+const int digestLength = 16;
+const int totalLength = packetLength + keyIdLength + digestLength;
+const char *expectedPacket = "ijklmnopqrstuvwx\0\0\0\0\x0c\x0e\x84\xcf\x0b\xb7\xa8\x68\x8e\x52\x38\xdb\xbc\x1c\x39\x53";
+
+TEST_F(a_md5encryptTest, Encrypt) {
+	char *packetPtr = new char[totalLength];
+	memset(packetPtr+packetLength, 0, keyIdLength);
+	memcpy(packetPtr, packet, packetLength);
+
+	cache_secretsize = keyLength;
+
+	int length =  MD5authencrypt(keytype, (u_char*)key, (u_int32*)packetPtr, packetLength);
+
+	EXPECT_TRUE(MD5authdecrypt(keytype, (u_char*)key, (u_int32*)packetPtr, packetLength, length));
+	
+	EXPECT_EQ(20, length);
+	EXPECT_TRUE(memcmp(expectedPacket, packetPtr, totalLength) == 0);
+
+	delete[] packetPtr;
+}
+
+TEST_F(a_md5encryptTest, DecryptValid) {
+	cache_secretsize = keyLength;
+
+	EXPECT_TRUE(MD5authdecrypt(keytype, (u_char*)key, (u_int32*)expectedPacket, packetLength, 20));
+}
+
+TEST_F(a_md5encryptTest, DecryptInvalid) {
+	cache_secretsize = keyLength;
+
+	const char *invalidPacket = "ijklmnopqrstuvwx\0\0\0\0\x0c\x0e\x84\xcf\x0b\xb7\xa8\x68\x8e\x52\x38\xdb\xbc\x1c\x39\x54";
+	
+	EXPECT_FALSE(MD5authdecrypt(keytype, (u_char*)key, (u_int32*)invalidPacket, packetLength, 20));
+}
+
+TEST_F(a_md5encryptTest, IPv4AddressToRefId) {
+	sockaddr_u addr;
+	addr.sa4.sin_family = AF_INET;
+	addr.sa4.sin_port = htons(80);
+
+	u_int32 address = inet_addr("192.0.2.1");
+	addr.sa4.sin_addr.s_addr = address;
+
+	EXPECT_EQ(address, addr2refid(&addr));
+}
+
+TEST_F(a_md5encryptTest, IPv6AddressToRefId) {
+	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;
+
+	const int expected = 0x75cffd52;
+
+	EXPECT_EQ(expected, addr2refid(&addr));
+}