execve syscall hooking

I have some good news and some bad news.

Good news: Syscall hooking in Linux 2.6 is done and it works.

Bad news: sys_execve hook does not work :)

The dazuko replacement for sys_execve does its magic and then, instead
of calling sys_execve, it inlines the sys_execve code, which involves a
call to do_execve, which does all the real work.

Unfortunately, it seems that do_execve is not an exported symbol in 2.6
kernels.

I do not quite understand the comments explaining why sys_execve cannot
be called directly in dazuko_linux.c. Could someone elaborate?

-- 
Sami Tikka                          tel: +358 9 2520 5115
Senior Software Engineer            fax: +358 9 2520 5013
F-Secure Corporation                http://www.f-secure.com/
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