[SDK] One step further towards ReactOS source code tree restructure: the sdk folder...

[reactos.git] / reactos / sdk / lib / drivers / ip / network / routines.c

diff --git a/reactos/sdk/lib/drivers/ip/network/routines.c b/reactos/sdk/lib/drivers/ip/network/routines.c
new file mode 100644 (file)
index 0000000..ac7fce5
--- /dev/null
+++ b/reactos/sdk/lib/drivers/ip/network/routines.c
@@ -0,0 +1,88 @@
+/*
+ * COPYRIGHT:   See COPYING in the top level directory
+ * PROJECT:     ReactOS TCP/IP protocol driver
+ * FILE:        tcpip/routines.c
+ * PURPOSE:     Common routines
+ * PROGRAMMERS: Casper S. Hornstrup (chorns@users.sourceforge.net)
+ * REVISIONS:
+ *   CSH 01/08-2000 Created
+ */
+
+#include "precomp.h"
+
+static UINT RandomNumber = 0x12345678;
+
+
+UINT Random(
+    VOID)
+/*
+ * FUNCTION: Returns a pseudo random number
+ * RETURNS:
+ *     Pseudo random number
+ */
+{
+    RandomNumber ^= 0x78563412;
+
+    return RandomNumber;
+}
+
+#if DBG
+static VOID DisplayIPHeader(
+    PCHAR Header,
+    UINT Length)
+{
+    /* FIXME: IPv4 only */
+    PIPv4_HEADER IPHeader = (PIPv4_HEADER)Header;
+
+    DbgPrint("IPv4 header:\n");
+    DbgPrint("VerIHL: 0x%x (version 0x%x, length %d 32-bit words)\n",
+      IPHeader->VerIHL, (IPHeader->VerIHL & 0xF0) >> 4, IPHeader->VerIHL & 0x0F);
+    DbgPrint("  Tos: %d\n", IPHeader->Tos);
+    DbgPrint("  TotalLength: %d\n", WN2H(IPHeader->TotalLength));
+    DbgPrint("  Id: %d\n", WN2H(IPHeader->Id));
+    DbgPrint("  FlagsFragOfs: 0x%x (offset 0x%x)\n", WN2H(IPHeader->FlagsFragOfs), WN2H(IPHeader->FlagsFragOfs) & IPv4_FRAGOFS_MASK);
+    if ((WN2H(IPHeader->FlagsFragOfs) & IPv4_DF_MASK) > 0) DbgPrint("    IPv4_DF - Don't fragment\n");
+    if ((WN2H(IPHeader->FlagsFragOfs) & IPv4_MF_MASK) > 0) DbgPrint("    IPv4_MF - More fragments\n");
+    DbgPrint("  Ttl: %d\n", IPHeader->Ttl);
+    DbgPrint("  Protocol: %d\n", IPHeader->Protocol);
+    DbgPrint("  Checksum: 0x%x\n", WN2H(IPHeader->Checksum));
+    DbgPrint("  SrcAddr: %d.%d.%d.%d\n",
+      ((IPHeader->SrcAddr >> 0) & 0xFF), ((IPHeader->SrcAddr >> 8) & 0xFF),
+      ((IPHeader->SrcAddr >> 16) & 0xFF), ((IPHeader->SrcAddr >> 24) & 0xFF));
+    DbgPrint("  DstAddr: %d.%d.%d.%d\n",
+      ((IPHeader->DstAddr >> 0) & 0xFF), ((IPHeader->DstAddr >> 8) & 0xFF),
+      ((IPHeader->DstAddr >> 16) & 0xFF), ((IPHeader->DstAddr >> 24) & 0xFF));
+}
+
+#endif
+
+VOID DisplayIPPacket(
+    PIP_PACKET IPPacket)
+{
+#if DBG
+    UINT Length;
+    PCHAR CharBuffer;
+
+    /* DbgQueryDebugFilterState returns (NTSTATUS)TRUE, (NTSTATUS)FALSE or a failure status code */
+    if ((DbgQueryDebugFilterState(DPFLTR_TCPIP_ID, DEBUG_PBUFFER | DPFLTR_MASK) != (NTSTATUS)TRUE) ||
+        (DbgQueryDebugFilterState(DPFLTR_TCPIP_ID, DEBUG_IP | DPFLTR_MASK) != (NTSTATUS)TRUE)) {
+        return;
+    }
+
+    if (!IPPacket) {
+        TI_DbgPrint(MIN_TRACE, ("Cannot display null packet.\n"));
+        return;
+    }
+
+    TI_DbgPrint(MIN_TRACE, ("IPPacket is at (0x%X).\n", IPPacket));
+    TI_DbgPrint(MIN_TRACE, ("Header buffer is at (0x%X).\n", IPPacket->Header));
+    TI_DbgPrint(MIN_TRACE, ("Header size is (%d).\n", IPPacket->HeaderSize));
+    TI_DbgPrint(MIN_TRACE, ("TotalSize (%d).\n", IPPacket->TotalSize));
+    TI_DbgPrint(MIN_TRACE, ("NdisPacket (0x%X).\n", IPPacket->NdisPacket));
+
+    CharBuffer = IPPacket->Header;
+    Length = IPPacket->HeaderSize;
+    DisplayIPHeader(CharBuffer, Length);
+#endif
+}
+