>
>>
>> >> i know the name of a function which is stored in some string in a
kernel
>> >> module, is there any way to execute that function.
>> >> That function is implemented in a module and has been exported.
>> >> thanks,
>> >> anil
>
>> >you mean execute from userspace? No.
>> >You mean execute from kernel space? Yes, but you would need to ensure
the
>> >module cannot be unloaded (by incrementing its module reference
>> >counter) while the function is invoked.
>> >Tigran
>>
>> module having that function won't be unloaded. but my problem is i know
>> only name (a string containing name of the function) but not function
>> pointer. could you please elaborate on how to do this??
>>
>Indeed, there is a function called get_module_symbol() (in
>kernel/module.c) which gets the address of a symbol in the given module.
>Actually, this doesn't even require kdb -- it is in the plain vanilla
>kernel and is even exported to modules...
thanks Tigran,
i got it working by using get_module_symbol();
its something like
void(*f)(int)
(void*)f = get_module_symbol(NULL, "name of the function");
..
now you have the funtion pointer you can call as you like
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