diff options
Diffstat (limited to 'src/Cedar/NullLan.c')
| -rw-r--r-- | src/Cedar/NullLan.c | 55 |
1 files changed, 53 insertions, 2 deletions
diff --git a/src/Cedar/NullLan.c b/src/Cedar/NullLan.c index ca7ff4ee..1296abf0 100644 --- a/src/Cedar/NullLan.c +++ b/src/Cedar/NullLan.c @@ -124,10 +124,41 @@ PACKET_ADAPTER *NullGetPacketAdapter() return pa;
}
+// Generate MAC address
+void NullGenerateMacAddress(UCHAR *mac, UINT id, UINT seq)
+{
+ UCHAR hash[SHA1_SIZE];
+ char name[MAX_SIZE];
+ BUF *b;
+ // Validate arguments
+ if (mac == NULL)
+ {
+ return;
+ }
+
+ b = NewBuf();
+ WriteBufInt(b, id);
+ WriteBufInt(b, seq);
+ GetMachineHostName(name, sizeof(name));
+#ifdef OS_WIN32
+ WriteBufInt(b, MsGetCurrentProcessId());
+#endif // OS_WIN32
+ WriteBufStr(b, name);
+
+ HashSha1(hash, b->Buf, b->Size);
+
+ FreeBuf(b);
+
+ Copy(mac, hash, 6);
+ mac[0] = 0x7E;
+}
+
// Packet generation thread
void NullPacketGenerateThread(THREAD *t, void *param)
{
NULL_LAN *n = (NULL_LAN *)param;
+ UINT64 end_tick = Tick64() + (UINT64)(60 * 1000);
+ UINT seq = 0;
// Validate arguments
if (t == NULL || param == NULL)
{
@@ -136,7 +167,12 @@ void NullPacketGenerateThread(THREAD *t, void *param) while (true)
{
- Wait(n->Event, Rand32() % NULL_PACKET_GENERATE_INTERVAL);
+ /*if (Tick64() >= end_tick)
+ {
+ break;
+ }*/
+
+ Wait(n->Event, Rand32() % 1500);
if (n->Halt)
{
break;
@@ -147,14 +183,25 @@ void NullPacketGenerateThread(THREAD *t, void *param) UCHAR *data;
BLOCK *b;
UINT size = Rand32() % 1500 + 14;
+ UCHAR dst_mac[6];
+
+ NullGenerateMacAddress(n->MacAddr, n->Id, seq);
+
+ //NullGenerateMacAddress(dst_mac, n->Id + 1, 0);
+ //StrToMac(dst_mac, "00-1B-21-A9-47-E6");
+ StrToMac(dst_mac, "00-AC-7A-EF-83-FD");
+
data = Malloc(size);
Copy(data, null_lan_broadcast_address, 6);
+ //Copy(data, dst_mac, 6);
Copy(data + 6, n->MacAddr, 6);
b = NewBlock(data, size, 0);
InsertQueue(n->PacketQueue, b);
}
UnlockQueue(n->PacketQueue);
Cancel(n->Cancel);
+
+ //seq++;
}
}
@@ -162,20 +209,24 @@ void NullPacketGenerateThread(THREAD *t, void *param) bool NullPaInit(SESSION *s)
{
NULL_LAN *n;
+ static UINT id_seed = 0;
// Validate arguments
if (s == NULL)
{
return false;
}
+ id_seed++;
+
n = ZeroMalloc(sizeof(NULL_LAN));
+ n->Id = id_seed;
s->PacketAdapter->Param = (void *)n;
n->Cancel = NewCancel();
n->PacketQueue = NewQueue();
n->Event = NewEvent();
- GenMacAddress(n->MacAddr);
+ NullGenerateMacAddress(n->MacAddr, n->Id, 0);
n->PacketGeneratorThread = NewThread(NullPacketGenerateThread, n);
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