Skip to content
GitLab
Explore
Sign in
Register
Primary navigation
Search or go to…
Project
wine
Manage
Activity
Members
Labels
Code
Merge requests
Repository
Branches
Commits
Tags
Repository graph
Compare revisions
Snippets
Build
Pipelines
Jobs
Pipeline schedules
Artifacts
Deploy
Package registry
Container registry
Model registry
Operate
Terraform modules
Analyze
Value stream analytics
Contributor analytics
CI/CD analytics
Repository analytics
Model experiments
Help
Help
Support
GitLab documentation
Compare GitLab plans
Community forum
Contribute to GitLab
Provide feedback
Keyboard shortcuts
?
Snippets
Groups
Projects
Show more breadcrumbs
Lorenzo Ferrillo
wine
Commits
2cd717a6
Commit
2cd717a6
authored
9 years ago
by
Alexandre Julliard
Browse files
Options
Downloads
Patches
Plain Diff
ntoskrnl: Add support for read and write requests.
parent
a78f8f29
Branches
Branches containing commit
Tags
Tags containing commit
No related merge requests found
Changes
1
Hide whitespace changes
Inline
Side-by-side
Showing
1 changed file
dlls/ntoskrnl.exe/ntoskrnl.c
+125
-34
125 additions, 34 deletions
dlls/ntoskrnl.exe/ntoskrnl.c
with
125 additions
and
34 deletions
dlls/ntoskrnl.exe/ntoskrnl.c
+
125
−
34
View file @
2cd717a6
...
...
@@ -128,26 +128,96 @@ static HANDLE get_device_manager(void)
return
ret
;
}
/* process an ioctl request for a given device */
static
NTSTATUS
process_ioctl
(
DEVICE_OBJECT
*
device
,
ULONG
code
,
void
*
in_buff
,
ULONG
in_size
,
ULONG
out_size
,
HANDLE
ioctl
)
static
NTSTATUS
dispatch_irp
(
DEVICE_OBJECT
*
device
,
IRP
*
irp
)
{
IRP
*
irp
;
void
*
out_buff
=
NULL
;
FILE_OBJECT
file
;
LARGE_INTEGER
count
;
FILE_OBJECT
file
;
TRACE
(
"ioctl %x device %p in_size %u out_size %u
\n
"
,
code
,
device
,
in_size
,
out_size
);
irp
->
RequestorMode
=
UserMode
;
irp
->
Tail
.
Overlay
.
OriginalFileObject
=
&
file
;
/* so we can spot things that we should initialize */
memset
(
&
file
,
0x88
,
sizeof
(
file
)
);
file
.
FsContext
=
NULL
;
file
.
FsContext2
=
NULL
;
KeQueryTickCount
(
&
count
);
/* update the global KeTickCount */
device
->
CurrentIrp
=
irp
;
IoCallDriver
(
device
,
irp
);
device
->
CurrentIrp
=
NULL
;
return
STATUS_SUCCESS
;
}
/* process a read request for a given device */
static
NTSTATUS
dispatch_read
(
DEVICE_OBJECT
*
device
,
const
irp_params_t
*
params
,
void
*
in_buff
,
ULONG
in_size
,
ULONG
out_size
,
HANDLE
irp_handle
)
{
IRP
*
irp
;
void
*
out_buff
;
LARGE_INTEGER
offset
;
IO_STACK_LOCATION
*
irpsp
;
TRACE
(
"device %p size %u
\n
"
,
device
,
out_size
);
if
(
!
(
out_buff
=
HeapAlloc
(
GetProcessHeap
(),
0
,
out_size
)))
return
STATUS_NO_MEMORY
;
offset
.
QuadPart
=
params
->
read
.
pos
;
if
((
code
&
3
)
==
METHOD_BUFFERED
)
out_size
=
max
(
in_size
,
out_size
);
/* note: we abuse UserIosb to store the server irp handle */
if
(
!
(
irp
=
IoBuildSynchronousFsdRequest
(
IRP_MJ_READ
,
device
,
out_buff
,
out_size
,
&
offset
,
NULL
,
irp_handle
)))
{
HeapFree
(
GetProcessHeap
(),
0
,
out_buff
);
return
STATUS_NO_MEMORY
;
}
irpsp
=
IoGetNextIrpStackLocation
(
irp
);
irpsp
->
Parameters
.
Read
.
Key
=
params
->
read
.
key
;
return
dispatch_irp
(
device
,
irp
);
}
/* process a write request for a given device */
static
NTSTATUS
dispatch_write
(
DEVICE_OBJECT
*
device
,
const
irp_params_t
*
params
,
void
*
in_buff
,
ULONG
in_size
,
ULONG
out_size
,
HANDLE
irp_handle
)
{
IRP
*
irp
;
LARGE_INTEGER
offset
;
IO_STACK_LOCATION
*
irpsp
;
TRACE
(
"device %p size %u
\n
"
,
device
,
in_size
);
offset
.
QuadPart
=
params
->
write
.
pos
;
/* note: we abuse UserIosb to store the server irp handle */
if
(
!
(
irp
=
IoBuildSynchronousFsdRequest
(
IRP_MJ_WRITE
,
device
,
in_buff
,
in_size
,
&
offset
,
NULL
,
irp_handle
)))
return
STATUS_NO_MEMORY
;
irpsp
=
IoGetNextIrpStackLocation
(
irp
);
irpsp
->
Parameters
.
Write
.
Key
=
params
->
write
.
key
;
return
dispatch_irp
(
device
,
irp
);
}
/* process an ioctl request for a given device */
static
NTSTATUS
dispatch_ioctl
(
DEVICE_OBJECT
*
device
,
const
irp_params_t
*
params
,
void
*
in_buff
,
ULONG
in_size
,
ULONG
out_size
,
HANDLE
irp_handle
)
{
IRP
*
irp
;
void
*
out_buff
=
NULL
;
TRACE
(
"ioctl %x device %p in_size %u out_size %u
\n
"
,
params
->
ioctl
.
code
,
device
,
in_size
,
out_size
);
if
((
params
->
ioctl
.
code
&
3
)
==
METHOD_BUFFERED
)
out_size
=
max
(
in_size
,
out_size
);
if
(
out_size
)
{
if
(
!
(
out_buff
=
HeapAlloc
(
GetProcessHeap
(),
0
,
out_size
)))
return
STATUS_NO_MEMORY
;
if
((
code
&
3
)
==
METHOD_BUFFERED
)
if
((
params
->
ioctl
.
code
&
3
)
==
METHOD_BUFFERED
)
{
memcpy
(
out_buff
,
in_buff
,
in_size
);
in_buff
=
out_buff
;
...
...
@@ -155,29 +225,50 @@ static NTSTATUS process_ioctl( DEVICE_OBJECT *device, ULONG code, void *in_buff,
}
/* note: we abuse UserIosb to store the server handle to the ioctl */
irp
=
IoBuildDeviceIoControlRequest
(
code
,
device
,
in_buff
,
in_size
,
out_buff
,
out_size
,
FALSE
,
NULL
,
(
IO_STATUS_BLOCK
*
)
ioctl
);
irp
=
IoBuildDeviceIoControlRequest
(
params
->
ioctl
.
code
,
device
,
in_buff
,
in_size
,
out_buff
,
out_size
,
FALSE
,
NULL
,
irp_handle
);
if
(
!
irp
)
{
HeapFree
(
GetProcessHeap
(),
0
,
out_buff
);
return
STATUS_NO_MEMORY
;
}
irp
->
RequestorMode
=
UserMode
;
irp
->
Tail
.
Overlay
.
OriginalFileObject
=
&
file
;
file
.
FsContext
=
NULL
;
file
.
FsContext2
=
NULL
;
KeQueryTickCount
(
&
count
);
/* update the global KeTickCount */
device
->
CurrentIrp
=
irp
;
IoCallDriver
(
device
,
irp
);
device
->
CurrentIrp
=
NULL
;
return
STATUS_SUCCESS
;
}
return
dispatch_irp
(
device
,
irp
);
}
typedef
NTSTATUS
(
*
dispatch_func
)(
DEVICE_OBJECT
*
device
,
const
irp_params_t
*
params
,
void
*
in_buff
,
ULONG
in_size
,
ULONG
out_size
,
HANDLE
irp_handle
);
static
const
dispatch_func
dispatch_funcs
[
IRP_MJ_MAXIMUM_FUNCTION
+
1
]
=
{
NULL
,
/* IRP_MJ_CREATE */
NULL
,
/* IRP_MJ_CREATE_NAMED_PIPE */
NULL
,
/* IRP_MJ_CLOSE */
dispatch_read
,
/* IRP_MJ_READ */
dispatch_write
,
/* IRP_MJ_WRITE */
NULL
,
/* IRP_MJ_QUERY_INFORMATION */
NULL
,
/* IRP_MJ_SET_INFORMATION */
NULL
,
/* IRP_MJ_QUERY_EA */
NULL
,
/* IRP_MJ_SET_EA */
NULL
,
/* IRP_MJ_FLUSH_BUFFERS */
NULL
,
/* IRP_MJ_QUERY_VOLUME_INFORMATION */
NULL
,
/* IRP_MJ_SET_VOLUME_INFORMATION */
NULL
,
/* IRP_MJ_DIRECTORY_CONTROL */
NULL
,
/* IRP_MJ_FILE_SYSTEM_CONTROL */
dispatch_ioctl
,
/* IRP_MJ_DEVICE_CONTROL */
NULL
,
/* IRP_MJ_INTERNAL_DEVICE_CONTROL */
NULL
,
/* IRP_MJ_SHUTDOWN */
NULL
,
/* IRP_MJ_LOCK_CONTROL */
NULL
,
/* IRP_MJ_CLEANUP */
NULL
,
/* IRP_MJ_CREATE_MAILSLOT */
NULL
,
/* IRP_MJ_QUERY_SECURITY */
NULL
,
/* IRP_MJ_SET_SECURITY */
NULL
,
/* IRP_MJ_POWER */
NULL
,
/* IRP_MJ_SYSTEM_CONTROL */
NULL
,
/* IRP_MJ_DEVICE_CHANGE */
NULL
,
/* IRP_MJ_QUERY_QUOTA */
NULL
,
/* IRP_MJ_SET_QUOTA */
NULL
,
/* IRP_MJ_PNP */
};
/***********************************************************************
...
...
@@ -235,16 +326,16 @@ NTSTATUS CDECL wine_ntoskrnl_main_loop( HANDLE stop_event )
switch
(
status
)
{
case
STATUS_SUCCESS
:
switch
(
irp_params
.
major
)
if
(
irp_params
.
major
>
IRP_MJ_MAXIMUM_FUNCTION
||
!
dispatch_funcs
[
irp_params
.
major
]
||
!
device
->
DriverObject
->
MajorFunction
[
irp_params
.
major
])
{
case
IRP_MJ_DEVICE_CONTROL
:
status
=
process_ioctl
(
device
,
irp_params
.
ioctl
.
code
,
in_buff
,
in_size
,
out_size
,
irp
);
break
;
default:
FIXME
(
"unsupported request %u
\n
"
,
irp_params
.
major
);
WARN
(
"unsupported request %u
\n
"
,
irp_params
.
major
);
status
=
STATUS_NOT_SUPPORTED
;
break
;
}
status
=
dispatch_funcs
[
irp_params
.
major
](
device
,
&
irp_params
,
in_buff
,
in_size
,
out_size
,
irp
);
if
(
status
==
STATUS_SUCCESS
)
irp
=
0
;
/* status reported by IoCompleteRequest */
break
;
case
STATUS_BUFFER_OVERFLOW
:
...
...
This diff is collapsed.
Click to expand it.
Preview
0%
Loading
Try again
or
attach a new file
.
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Save comment
Cancel
Please
register
or
sign in
to comment