Process presented licenses, and generate RC4 keys.

[rdpsrv] / secure.c

diff --git a/secure.c b/secure.c
index 573b77d3598112f35fe5e9bbbfa8c60cf05e4705..a52a134ffdb671a23987e3c23952ff683e55b21c 100644 (file)
--- a/secure.c
+++ b/secure.c
@@ -739,8 +739,74 @@ unsigned char demand_license[] = {
        0x69, 0x00, 0x6f, 0x00, 0x6e, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x41, 0x00, 0x30, 0x00,
        0x32, 0x00, 0x00, 0x00, 0x0d, 0x00, 0x04, 0x00, 0x01, 0x00, 0x00, 0x00, 0x04, 0xf6, 0x00, 0x00,
        0x01, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x0e, 0x00, 0x6d, 0x69, 0x63, 0x72, 0x6f, 0x73, 0x6f, 0x66,
-       0x74, 0x2e, 0x63, 0x6f, 0x6d, 0x00
+       0x74, 0x2e, 0x63, 0x6f, 0x6d, 0x00 
 };
+unsigned char authreq_license[] = {
+       0x02, 0x03, 0x26, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x0a, 0x00, 0x37, 0x58, 0x0f, 0xc6,
+       0x59, 0xfb, 0x03, 0xb2, 0x2a, 0xb7, 0xfa, 0x65, 0xac, 0x02, 0x8d, 0x8b, 0xda, 0xf7, 0xc5, 0x20,
+       0x1b, 0xe3, 0x65, 0x26, 0xc4, 0x6a
+};
+unsigned char result_license[] = {
+        0xff, 0x03, 0x10, 0x00, 0x08, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x6a, 0xbd, 0x00, 0x00
+};
+
+#define EXPECT8(value) { in_uint8(s, unknown); if (unknown != (value)) printf("Unknown value on code line %u; expected 0x%x, got 0x%x\n", __LINE__, (value), unknown); }
+#define EXPECT16(value) { in_uint16_le(s, unknown); if (unknown != (value)) printf("Unknown value on code line %u; expected 0x%x, got 0x%x\n", __LINE__, (value), unknown); }
+#define EXPECT32(value) { in_uint32_le(s, unknown); if (unknown != (value)) printf("Unknown value on code line %u; expected 0x%x, got 0x%x\n", __LINE__, (value), unknown); }
+
+void
+process_presented_license(STREAM s)
+{
+       unsigned char client_license_random[SEC_RANDOM_SIZE];
+       unsigned char client_license_rsa_data[SEC_MODULUS_SIZE];
+
+       uint16 length, license_size;
+       uint32 unknown;
+       uint8 *license, hwid[LICENCE_HWID_SIZE], signature[LICENCE_SIGNATURE_SIZE];
+       int i;
+       
+       EXPECT8(2);                   // version
+       in_uint16_le(s, length);
+
+       EXPECT32(1);                  // unknown
+       EXPECT16(0);
+       EXPECT16(0x0201);
+
+       in_uint8a(s, client_license_random, SEC_RANDOM_SIZE);
+       EXPECT16(0);
+       EXPECT16(SEC_MODULUS_SIZE + SEC_PADDING_SIZE);
+       in_uint8a(s, client_license_rsa_data, SEC_MODULUS_SIZE);
+       in_uint8s(s, SEC_PADDING_SIZE);
+
+       EXPECT16(1);
+       in_uint16_le(s, license_size);
+
+       license = (uint8 *)xmalloc(license_size);
+       in_uint8a(s, license, license_size);
+
+       printf("Received license:\n");
+       for (i = 0; i < license_size; ++i)
+               printf(" 0x%02x", license[i]);
+       printf("\n");
+
+       EXPECT16(1);
+       EXPECT16(LICENCE_HWID_SIZE);
+       in_uint8a(s, hwid, LICENCE_HWID_SIZE);
+
+       printf("License hardware ID:\n");
+       for (i = 0; i < LICENCE_HWID_SIZE; ++i)
+               printf(" 0x%02x", hwid[i]);
+       printf("\n");
+
+       in_uint8a(s, signature, LICENCE_SIGNATURE_SIZE);
+
+       if (!s_check_end(s)) {
+               printf("Unknown data at the end of presented license!");
+       }
+
+       // now we can generate the keys we need
+       licence_generate_keys(client_license_random, demand_license + 4, client_license_rsa_data);
+}
 
 /* Receive secure transport packet */
 STREAM
@@ -766,7 +832,14 @@ sec_recv(void)
 
                        if (sec_flags & SEC_LICENCE_NEG)
                        {
-                               printf("SEC_LICENSE_NEG unknown\n");
+                               uint8 tag;
+                               in_uint8(s, tag);
+                               printf("SEC_LICENSE_NEG tag %x\n", tag);
+                               
+                               if (tag == LICENCE_TAG_PRESENT) {
+                                       process_presented_license(s);
+                               }
+                               
                                //licence_process(s);
                                continue;
                        }