drivers/filesystems/fastfat/kdbg.c

   1 /*
   2 * FILE:             drivers/filesystems/fastfat/kdbg.c
   3 * PURPOSE:          KDBG extension.
   4 * COPYRIGHT:        See COPYING in the top level directory
   5 * PROJECT:          ReactOS kernel
   6 * PROGRAMMER:       Pierre Schweitzer (pierre@reactos.org)
   7 */
   8
   9 /*  -------------------------------------------------------  INCLUDES  */
  10
  11 #include "vfat.h"
  12
  13 #define NDEBUG
  14 #include <debug.h>
  15
  16 #include <stdio.h>
  17
  18 /*  --------------------------------------------------------  DEFINES  */
  19
  20 #ifdef KDBG
  21 UNICODE_STRING DebugFile = {0, 0, NULL};
  22
  23 BOOLEAN
  24 NTAPI
  25 vfatKdbgHandler(
  26     IN PCHAR Command,
  27     IN ULONG Argc,
  28     IN PCH Argv[])
  29 {
  30     ULONG Len;
  31
  32     Len = strlen(Command);
  33     if (Len < sizeof("?fat."))
  34     {
  35         return FALSE;
  36     }
  37
  38     if (Command[0] != '?' || Command[1] != 'f' ||
  39         Command[2] != 'a' || Command[3] != 't' ||
  40         Command[4] != '.')
  41     {
  42         return FALSE;
  43     }
  44
  45     Command += (sizeof("?fat.") - sizeof(ANSI_NULL));
  46     if (strcmp(Command, "vols") == 0)
  47     {
  48         ULONG Count = 0;
  49         PLIST_ENTRY ListEntry;
  50         PDEVICE_EXTENSION DeviceExt;
  51
  52         for (ListEntry = VfatGlobalData->VolumeListHead.Flink;
  53              ListEntry != &VfatGlobalData->VolumeListHead;
  54              ListEntry = ListEntry->Flink)
  55         {
  56             DeviceExt = CONTAINING_RECORD(ListEntry, DEVICE_EXTENSION, VolumeListEntry);
  57             DPRINT1("Volume: %p with VCB: %p\n", DeviceExt->VolumeDevice, DeviceExt);
  58             ++Count;
  59         }
  60
  61         if (Count == 0)
  62         {
  63             DPRINT1("No volume found\n");
  64         }
  65     }
  66     else if (strcmp(Command, "files") == 0)
  67     {
  68         if (Argc != 2)
  69         {
  70             DPRINT1("Please provide a volume or a VCB!\n");
  71         }
  72         else
  73         {
  74             PLIST_ENTRY ListEntry;
  75             PDEVICE_EXTENSION DeviceExt;
  76
  77             for (ListEntry = VfatGlobalData->VolumeListHead.Flink;
  78                  ListEntry != &VfatGlobalData->VolumeListHead;
  79                  ListEntry = ListEntry->Flink)
  80             {
  81                 CHAR Volume[17];
  82
  83                 DeviceExt = CONTAINING_RECORD(ListEntry, DEVICE_EXTENSION, VolumeListEntry);
  84                 sprintf(Volume, "%p", DeviceExt);
  85                 if (strcmp(Volume, Argv[1]) == 0)
  86                 {
  87                     break;
  88                 }
  89
  90                 sprintf(Volume, "%p", DeviceExt->VolumeDevice);
  91                 if (strcmp(Volume, Argv[1]) == 0)
  92                 {
  93                     break;
  94                 }
  95
  96                 DeviceExt = NULL;
  97             }
  98
  99             if (DeviceExt == NULL)
 100             {
 101                 DPRINT1("No volume %s found!\n", Argv[1]);
 102             }
 103             else
 104             {
 105                 PVFATFCB Fcb;
 106
 107                 for (ListEntry = DeviceExt->FcbListHead.Flink;
 108                      ListEntry != &DeviceExt->FcbListHead;
 109                      ListEntry = ListEntry->Flink)
 110                 {
 111                     Fcb = CONTAINING_RECORD(ListEntry, VFATFCB, FcbListEntry);
 112                     DPRINT1("FCB %p (ref: %d, oc: %d %s %s %s) for FO %p with path: %.*S\n",
 113                             Fcb, Fcb->RefCount, Fcb->OpenHandleCount,
 114                             ((Fcb->Flags & FCB_CLEANED_UP) ? "U" : "NU"),
 115                             ((Fcb->Flags & FCB_CLOSED) ? "C" : "NC"),
 116                             ((Fcb->Flags & FCB_DELAYED_CLOSE) ? "D" : "ND"),
 117                             Fcb->FileObject, Fcb->PathNameU.Length, Fcb->PathNameU.Buffer);
 118                 }
 119             }
 120         }
 121     }
 122     else if (strcmp(Command, "setdbgfile") == 0)
 123     {
 124         if (Argc < 2)
 125         {
 126             if (DebugFile.Buffer != NULL)
 127             {
 128                 ExFreePool(DebugFile.Buffer);
 129                 DebugFile.Length = 0;
 130                 DebugFile.MaximumLength = 0;
 131             }
 132
 133             DPRINT1("Debug file reset\n");
 134         }
 135         else
 136         {
 137             NTSTATUS Status;
 138             ANSI_STRING Source;
 139
 140             if (DebugFile.Buffer != NULL)
 141             {
 142                 ExFreePool(DebugFile.Buffer);
 143                 DebugFile.Length = 0;
 144                 DebugFile.MaximumLength = 0;
 145             }
 146
 147             RtlInitAnsiString(&Source, Argv[1]);
 148             Status = RtlAnsiStringToUnicodeString(&DebugFile, &Source, TRUE);
 149             if (NT_SUCCESS(Status))
 150             {
 151                 DPRINT1("Debug file set to: %.*S\n", DebugFile.Length, DebugFile.Buffer);
 152             }
 153         }
 154     }
 155     else
 156     {
 157         DPRINT1("Unknown command: %s\n", Command);
 158     }
 159
 160     return TRUE;
 161 }
 162 #endif