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Windows kernel

Windows kernel. Windows Driver Model Nisec liangge. Agenda. The limits about today’s presentation What differences between ring0 and ring3 How OS Startup How driver works. Limits. Win2000/ xp /2003, no Vista X86, no details WDM, no WDF Basic, no complex 32-bit, no 64-bit.

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Windows kernel

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  1. Windows kernel Windows Driver Model Nisec liangge

  2. Agenda • The limits about today’s presentation • What differences between ring0 and ring3 • How OS Startup • How driver works

  3. Limits • Win2000/xp/2003, no Vista • X86, no details • WDM, no WDF • Basic, no complex • 32-bit, no 64-bit

  4. What differences-ring0 and ring3 • Advantage • The whole instructions • The whole memory • The details about OS • A lot of routines • More things can do

  5. What differences-ring0 & ring3 • Disadvantage: • More time to work on • More dangerous for machine • More challenge

  6. What differences – Win & UNIX • Advantage • Microsoft • Strong man • Market

  7. What differences – Win & UNIX • Disadvantage: • Little source code • excellent documentation • Microsoft

  8. How OS startup • Setup system • MBR • Boot sector • Kernel • Ntldr-load boot driver • NtOskrnl.exe

  9. Ntoskrnl • Phase0 • No interrupt • Initialize • Phase1 • Allow interrupt • IoManager initialize

  10. IoManager • boot driver, system start driver, service auto driver, service demand start • Enumeration • Recursion • Devnode • From top to root

  11. How driver works • See WORD

  12. Further Reading • Mark E. Russinovich and David A. Solomon, Microsoft Windows internals,4th Edition, MS press • Walter Oney Microsoft Windows driver model, 2th edition, MS press • DDK document, source code

  13. Useful website • http://msdn.microsoft.com • http://www.osronline.com • http://www.msdnaa.net/curriculum/pfv.aspx?ID=6191 • http://www.driverdevelop.com

  14. End • Thanks! • QA

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