ReactOS 0.4.15-dev-6067-g0b695a6
vfdfmt.c File Reference
#include "imports.h"
#include "vfddrv.h"
#include "vfddbg.h"
Include dependency graph for vfdfmt.c:

Go to the source code of this file.

Macros

#define F3_640_512   (MEDIA_TYPE)14
 
#define F3_1Pt2_512   (MEDIA_TYPE)17
 

Functions

NTSTATUS VfdFormatCheck (PDEVICE_EXTENSION DeviceExtension, PFORMAT_PARAMETERS FormatParams, ULONG InputLength, ULONG ControlCode)
 
NTSTATUS VfdFormatTrack (IN PDEVICE_EXTENSION DeviceExtension, IN PFORMAT_PARAMETERS FormatParams)
 

Variables

DISK_GEOMETRY const geom_tbl [VFD_MEDIA_MAX]
 

Macro Definition Documentation

◆ F3_1Pt2_512

#define F3_1Pt2_512   (MEDIA_TYPE)17

Definition at line 27 of file vfdfmt.c.

◆ F3_640_512

#define F3_640_512   (MEDIA_TYPE)14

Definition at line 24 of file vfdfmt.c.

Function Documentation

◆ VfdFormatCheck()

NTSTATUS VfdFormatCheck ( PDEVICE_EXTENSION  DeviceExtension,
PFORMAT_PARAMETERS  FormatParams,
ULONG  InputLength,
ULONG  ControlCode 
)

Definition at line 73 of file vfdfmt.c.

78{
79 const DISK_GEOMETRY *geometry;
80
81 // Check media status
82
83 if (!DeviceExtension->FileHandle &&
84 !DeviceExtension->FileBuffer) {
86 }
87
88 // Media is writable?
89
90 if (DeviceExtension->MediaFlags & VFD_FLAG_WRITE_PROTECTED) {
92 }
93
94 // Check input parameter size
95
96 if (InputLength < sizeof(FORMAT_PARAMETERS)) {
98 }
99
100 // Choose appropriate DISK_GEOMETRY for current image size
101
102 geometry = DeviceExtension->Geometry;
103
104 if (!geometry) {
106 }
107
108 // Input parameter sanity check
109
110 if ((FormatParams->StartHeadNumber > geometry->TracksPerCylinder - 1) ||
111 (FormatParams->EndHeadNumber > geometry->TracksPerCylinder - 1) ||
112 (FormatParams->StartCylinderNumber > geometry->Cylinders.LowPart) ||
113 (FormatParams->EndCylinderNumber > geometry->Cylinders.LowPart) ||
114 (FormatParams->EndCylinderNumber < FormatParams->StartCylinderNumber))
115 {
117 }
118
119 // If this is an EX request then make a couple of extra checks
120
122
123 PFORMAT_EX_PARAMETERS exparams;
124
125 if (InputLength < sizeof(FORMAT_EX_PARAMETERS)) {
127 }
128
129 exparams = (PFORMAT_EX_PARAMETERS)FormatParams;
130
131 if (InputLength <
132 FIELD_OFFSET(FORMAT_EX_PARAMETERS, SectorNumber) +
133 exparams->SectorsPerTrack * sizeof(USHORT))
134 {
136 }
137
138 if (exparams->FormatGapLength > geometry->SectorsPerTrack ||
139 exparams->SectorsPerTrack != geometry->SectorsPerTrack)
140 {
142 }
143 }
144
145 return STATUS_SUCCESS;
146}
#define IOCTL_DISK_FORMAT_TRACKS_EX
Definition: cdrw_usr.h:173
struct _FORMAT_EX_PARAMETERS * PFORMAT_EX_PARAMETERS
unsigned short USHORT
Definition: pedump.c:61
#define STATUS_SUCCESS
Definition: shellext.h:65
LARGE_INTEGER Cylinders
Definition: ntdddisk.h:405
ULONG TracksPerCylinder
Definition: ntdddisk.h:407
ULONG SectorsPerTrack
Definition: ntdddisk.h:408
ULONG EndCylinderNumber
Definition: ntdddisk.h:634
ULONG StartHeadNumber
Definition: ntdddisk.h:635
ULONG StartCylinderNumber
Definition: ntdddisk.h:633
#define FIELD_OFFSET(t, f)
Definition: typedefs.h:255
#define STATUS_DRIVER_INTERNAL_ERROR
Definition: udferr_usr.h:177
#define STATUS_MEDIA_WRITE_PROTECTED
Definition: udferr_usr.h:161
#define STATUS_INVALID_PARAMETER
Definition: udferr_usr.h:135
#define STATUS_NO_MEDIA_IN_DEVICE
Definition: udferr_usr.h:141
ULONG LowPart
Definition: typedefs.h:106
#define VFD_FLAG_WRITE_PROTECTED
Definition: vfdtypes.h:68
_IRQL_requires_same_ typedef _In_ ULONG ControlCode
Definition: wmitypes.h:55

◆ VfdFormatTrack()

NTSTATUS VfdFormatTrack ( IN PDEVICE_EXTENSION  DeviceExtension,
IN PFORMAT_PARAMETERS  FormatParams 
)

Definition at line 153 of file vfdfmt.c.

156{
157 const DISK_GEOMETRY *geometry;
158 ULONG track_length;
159 PUCHAR format_buffer;
160 LARGE_INTEGER start_offset;
161 LARGE_INTEGER end_offset;
163
164 VFDTRACE(0, ("[VFD] VfdFormatTrack - IN\n"));
165
166 ASSERT(DeviceExtension != NULL);
167
168 geometry = DeviceExtension->Geometry;
169
170 if (!geometry) {
172 }
173
174 track_length = geometry->BytesPerSector * geometry->SectorsPerTrack;
175
176 format_buffer = (PUCHAR)ExAllocatePoolWithTag(
177 PagedPool, track_length, VFD_POOL_TAG);
178
179 if (format_buffer == NULL) {
180 VFDTRACE(0, ("[VFD] cannot allocate a format buffer\n"));
182 }
183
184 RtlFillMemory(format_buffer, track_length, VFD_FORMAT_FILL_DATA);
185
186 start_offset.QuadPart =
187 FormatParams->StartCylinderNumber * geometry->TracksPerCylinder * track_length +
188 FormatParams->StartHeadNumber * track_length;
189
190 end_offset.QuadPart =
191 FormatParams->EndCylinderNumber * geometry->TracksPerCylinder * track_length +
192 FormatParams->EndHeadNumber * track_length;
193
194 do {
195 if (DeviceExtension->FileHandle) {
197
198 status = ZwWriteFile(
199 DeviceExtension->FileHandle,
200 NULL,
201 NULL,
202 NULL,
203 &io_status,
204 format_buffer,
205 track_length,
206 &start_offset,
207 NULL);
208
209 if (!NT_SUCCESS(status)) {
210 VFDTRACE(0, ("[VFD] ZwWriteFile - %s\n",
211 GetStatusName(status)));
212 break;
213 }
214 }
215 else {
217 DeviceExtension->FileBuffer + start_offset.QuadPart,
218 format_buffer,
219 track_length);
220
222 }
223
224 start_offset.QuadPart += track_length;
225 }
226 while (start_offset.QuadPart <= end_offset.QuadPart);
227
228 ExFreePool(format_buffer);
229
230 VFDTRACE(0, ("[VFD] VfdFormatTrack - OUT\n"));
231
232 return status;
233}
LONG NTSTATUS
Definition: precomp.h:26
#define NULL
Definition: types.h:112
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
#define ExAllocatePoolWithTag(hernya, size, tag)
Definition: env_spec_w32.h:350
#define ExFreePool(addr)
Definition: env_spec_w32.h:352
#define PagedPool
Definition: env_spec_w32.h:308
#define RtlFillMemory(Dest, Length, Fill)
Definition: winternl.h:593
#define ASSERT(a)
Definition: mode.c:44
static HANDLE PIO_APC_ROUTINE void PIO_STATUS_BLOCK io_status
Definition: comm.c:56
ULONG BytesPerSector
Definition: ntdddisk.h:409
Definition: ps.c:97
#define RtlMoveMemory(Destination, Source, Length)
Definition: typedefs.h:264
unsigned char * PUCHAR
Definition: typedefs.h:53
uint32_t ULONG
Definition: typedefs.h:59
#define STATUS_INSUFFICIENT_RESOURCES
Definition: udferr_usr.h:158
LONGLONG QuadPart
Definition: typedefs.h:114
#define VFDTRACE(LEVEL, STRING)
Definition: vfddbg.h:72
#define VFD_POOL_TAG
Definition: vfddrv.h:25
#define VFD_FORMAT_FILL_DATA
Definition: vfdio.h:51

Referenced by VfdIoCtlThread().

Variable Documentation

◆ geom_tbl

DISK_GEOMETRY const geom_tbl[VFD_MEDIA_MAX]
extern