reactos/drivers/filesystems/npfs/npfs.h

   1 #ifndef __DRIVERS_FS_NP_NPFS_H
   2 #define __DRIVERS_FS_NP_NPFS_H
   3
   4 #include <ntifs.h>
   5 #include <ndk/iotypes.h>
   6
   7 typedef enum _FCB_TYPE
   8 {
   9     FCB_DEVICE,
  10     FCB_DIRECTORY,
  11     FCB_PIPE
  12 } FCB_TYPE;
  13
  14 typedef enum _CCB_TYPE
  15 {
  16     CCB_DEVICE,
  17     CCB_DIRECTORY,
  18     CCB_PIPE
  19 } CCB_TYPE;
  20
  21 /* Volume Control Block (VCB) aka Device Extension */
  22 typedef struct _NPFS_VCB
  23 {
  24     LIST_ENTRY PipeListHead;
  25     LIST_ENTRY ThreadListHead;
  26     KMUTEX PipeListLock;
  27     ULONG EmptyWaiterCount;
  28     ULONG MinQuota;
  29     ULONG DefaultQuota;
  30     ULONG MaxQuota;
  31     struct _NPFS_FCB *RootFcb;
  32 } NPFS_VCB, *PNPFS_VCB;
  33
  34 typedef struct _NPFS_FCB
  35 {
  36     FCB_TYPE Type;
  37     PNPFS_VCB Vcb;
  38     UNICODE_STRING PipeName;
  39     LIST_ENTRY PipeListEntry;
  40     KMUTEX CcbListLock;
  41     LIST_ENTRY ServerCcbListHead;
  42     LIST_ENTRY ClientCcbListHead;
  43     LIST_ENTRY WaiterListHead;
  44     LIST_ENTRY EmptyBufferListHead;
  45     ULONG PipeType;
  46     ULONG ClientReadMode;
  47     ULONG ServerReadMode;
  48     ULONG CompletionMode;
  49     ULONG PipeConfiguration;
  50     ULONG MaximumInstances;
  51     ULONG CurrentInstances;
  52     ULONG InboundQuota;
  53     ULONG OutboundQuota;
  54     LARGE_INTEGER TimeOut;
  55 } NPFS_FCB, *PNPFS_FCB;
  56
  57 typedef struct _NPFS_CCB
  58 {
  59     LIST_ENTRY CcbListEntry;
  60     CCB_TYPE Type;
  61     PNPFS_FCB Fcb;
  62
  63     struct _NPFS_CCB* OtherSide;
  64     struct ETHREAD *Thread;
  65     KEVENT ConnectEvent;
  66     KEVENT ReadEvent;
  67     KEVENT WriteEvent;
  68     ULONG PipeEnd;
  69     ULONG PipeState;
  70     ULONG ReadDataAvailable;
  71     ULONG WriteQuotaAvailable;
  72
  73     LIST_ENTRY ReadRequestListHead;
  74
  75     PVOID Data;
  76     PVOID ReadPtr;
  77     PVOID WritePtr;
  78     ULONG MaxDataLength;
  79
  80     FAST_MUTEX DataListLock;    /* Data queue lock */
  81 } NPFS_CCB, *PNPFS_CCB;
  82
  83 typedef struct _NPFS_CONTEXT
  84 {
  85     LIST_ENTRY ListEntry;
  86     PKEVENT WaitEvent;
  87 } NPFS_CONTEXT, *PNPFS_CONTEXT;
  88
  89 typedef struct _NPFS_THREAD_CONTEXT
  90 {
  91     ULONG Count;
  92     KEVENT Event;
  93     PNPFS_VCB Vcb;
  94     LIST_ENTRY ListEntry;
  95     PVOID WaitObjectArray[MAXIMUM_WAIT_OBJECTS];
  96     KWAIT_BLOCK WaitBlockArray[MAXIMUM_WAIT_OBJECTS];
  97     PIRP WaitIrpArray[MAXIMUM_WAIT_OBJECTS];
  98 } NPFS_THREAD_CONTEXT, *PNPFS_THREAD_CONTEXT;
  99
 100 typedef struct _NPFS_WAITER_ENTRY
 101 {
 102     LIST_ENTRY Entry;
 103     PNPFS_CCB Ccb;
 104 } NPFS_WAITER_ENTRY, *PNPFS_WAITER_ENTRY;
 105
 106
 107 extern NPAGED_LOOKASIDE_LIST NpfsPipeDataLookasideList;
 108
 109
 110 #define KeLockMutex(x) KeWaitForSingleObject(x, \
 111     UserRequest, \
 112     KernelMode, \
 113     FALSE, \
 114     NULL);
 115
 116 #define KeUnlockMutex(x) KeReleaseMutex(x, FALSE);
 117
 118 #define PAGE_ROUND_UP(x) ( (((ULONG_PTR)x)%PAGE_SIZE) ? ((((ULONG_PTR)x)&(~(PAGE_SIZE-1)))+PAGE_SIZE) : ((ULONG_PTR)x) )
 119
 120 DRIVER_DISPATCH NpfsCreate;
 121 NTSTATUS NTAPI NpfsCreate(PDEVICE_OBJECT DeviceObject, PIRP Irp);
 122
 123 DRIVER_DISPATCH NpfsCreateNamedPipe;
 124 NTSTATUS NTAPI NpfsCreateNamedPipe(PDEVICE_OBJECT DeviceObject, PIRP Irp);
 125
 126 DRIVER_DISPATCH NpfsCleanup;
 127 NTSTATUS NTAPI NpfsCleanup(PDEVICE_OBJECT DeviceObject, PIRP Irp);
 128
 129 DRIVER_DISPATCH NpfsClose;
 130 NTSTATUS NTAPI NpfsClose(PDEVICE_OBJECT DeviceObject, PIRP Irp);
 131
 132 DRIVER_DISPATCH NpfsRead;
 133 NTSTATUS NTAPI NpfsRead(PDEVICE_OBJECT DeviceObject, PIRP Irp);
 134
 135 DRIVER_DISPATCH NpfsWrite;
 136 NTSTATUS NTAPI NpfsWrite(PDEVICE_OBJECT DeviceObject, PIRP Irp);
 137
 138 DRIVER_DISPATCH NpfsFlushBuffers;
 139 NTSTATUS NTAPI NpfsFlushBuffers(PDEVICE_OBJECT DeviceObject, PIRP Irp);
 140
 141 DRIVER_DISPATCH NpfsFileSystemControl;
 142 NTSTATUS NTAPI NpfsFileSystemControl(PDEVICE_OBJECT DeviceObject, PIRP Irp);
 143
 144 DRIVER_DISPATCH NpfsQueryInformation;
 145 NTSTATUS NTAPI NpfsQueryInformation(PDEVICE_OBJECT DeviceObject, PIRP Irp);
 146
 147 DRIVER_DISPATCH NpfsSetInformation;
 148 NTSTATUS NTAPI NpfsSetInformation(PDEVICE_OBJECT DeviceObject, PIRP Irp);
 149
 150 DRIVER_DISPATCH NpfsQueryVolumeInformation;
 151 NTSTATUS NTAPI NpfsQueryVolumeInformation (PDEVICE_OBJECT DeviceObject, PIRP Irp);
 152
 153 NTSTATUS NTAPI
 154 DriverEntry(PDRIVER_OBJECT DriverObject,
 155             PUNICODE_STRING RegistryPath);
 156
 157 PNPFS_FCB
 158 NpfsFindPipe(PNPFS_VCB Vcb,
 159              PUNICODE_STRING PipeName);
 160
 161
 162 #endif /* __DRIVERS_FS_NP_NPFS_H */