Re: RE: How to access kernel memory?

Re: RE: How to access kernel memory?

[Zhang Fuxin]

hi,Siders, Keith，
   Hehe,I can think of some usage of 'hot-patched': virus or security
daemon,binary code enhancement or some kind of transform,auto parallelize...:)
   But all this could be done through /dev/mem,in theory.


在 2001-09-18 09:59:00 you wrote：
>I have just the opposite requirement. I need to allow any running process
>and its threads to be "hot-patched" with executable code. I know you're
>thinking "why?". I can't tell you that. I can only say  it's a firm
>requirement, and I could use some helpful ideas.
>
>Keith 
>
>-> -----Original Message-----
>-> From: Zhang Fuxin [mailto:fxzhang@ict.ac.cn]
>-> Sent: Tuesday, September 18, 2001 9:53 AM
>-> To: han han
>-> Cc: linux-mips@oss.sgi.com
>-> Subject: Re: How to access kernel memory?
>-> 
>-> 
>-> hi,han han，
>->    There are several ways.For example:
>->    1.You can create a character device , implement its mmap function
>-> to map the memory block you allcated.This can be done in a little
>-> kernel module.There are some sample code before.
>->    2.via /dev/mem,/dev/kmem etc
>->    
>-> 
>-> 
>-> 
>-> 在 2001-09-18 07:35:00 you wrote：
>-> >Hi, All,
>-> >
>-> >I allocated a block of memory in the kernel space. But
>-> >I don't know how to directly access kernel space from
>-> >user space. Anyone can help me?
>-> >
>-> >Thanks in advance.
>-> >
>-> >piggie
>-> >
>-> >
>-> >__________________________________________________
>-> >Terrorist Attacks on U.S. - How can you help?
>-> >Donate cash, emergency relief information
>-> >http://dailynews.yahoo.com/fc/US/Emergency_Information/
>-> 
>-> Regards
>->             Zhang Fuxin
>->             fxzhang@ict.ac.cn
>-> 

Regards
            Zhang Fuxin
            fxzhang@ict.ac.cn

RE: RE: How to access kernel memory?

[Siders, Keith]

Thanks. Except for the virus, that sums up the intent. "That's not a bug;
it's a feature...";-)

-> -----Original Message-----
-> From: Zhang Fuxin [mailto:fxzhang@ict.ac.cn]
-> Sent: Monday, September 17, 2001 1:01 PM
-> To: Siders, Keith
-> Cc: linux-mips@oss.sgi.com
-> Subject: Re: RE: How to access kernel memory?
-> 
-> 
-> hi,Siders, Keith，
->    Hehe,I can think of some usage of 'hot-patched': virus or security
-> daemon,binary code enhancement or some kind of 
-> transform,auto parallelize...:)
->    But all this could be done through /dev/mem,in theory.
->