driver extension

mac: .kext

linux: .ko

windows: .sys

GUID & com

Globally unique identifiers (GUIDs)

1.Interface ID (IID)

a GUID that uniquely identifies a particular COM interface

2.Class ID (CLSID)

a GUID that uniquely identifies a particular COM object

com & interface

An interface is the COM mechanism for exposing public methods on an object

If an object exposes a standard interface, the object must implement every method in that interface.

A typical COM object exposes at least two and sometimes many interfaces.

IUnknown

IUnknown is the key COM interface. Every COM object must expose this interface

package windows driver

WDF driver package consists of the following components

1. driver binaries

2. either or both WDF co-installer

3. INF

a text file that contains directives that instruct Windows how to install the driver

use .inx file to create .inf files for different architecture

compile windows project

1. open a build environment window

start -> all programs -> windows driver kits -> wdk 7600.16385.0 -> build environments -> windows 7 -> x64 free build environment

2. In the project directory, two supporting files are needed

1. Makefile

2. sources

This file contains project-specific information that is used to build the driver, such as the list of source files.

options files:

Makefile.inc:

the directives for building the custom targets are placed in Makefile.inc. Makefile itself should never be modified.

.inx file:

An INX file is an architecture-independent INF file. When the appropriate instructions are specified, the Build utility uses the data in an INX file to produce an appropriate INF file for the project.

3. compile driver

in the project directory, type "build -g"

-g:Uses colored text to display warnings, errors, and summaries.

usually use "build -ceZ"

4. the file created from building

a output directory :

ex: objfre_wxp_x86\i386 for windows xp

objfre_wnet_x86\i386 for windows 2003

files in the directory:

(1) driver binary:

for KMDF, it is .sys file

for UMDF, it is .dll file

(2) object files for source file

(3)symbol file

.pdf file, for debugging