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* Calling ip_rcv_finish() from a module
@ 2012-12-02 10:38 arif
  2012-12-04 18:18 ` Jan Engelhardt
  0 siblings, 1 reply; 2+ messages in thread
From: arif @ 2012-12-02 10:38 UTC (permalink / raw)
  To: netfilter-devel

Hi,

arif@khost:~/src/linux$ global -x ip_rcv_finish
ip_rcv_finish     319 net/ipv4/ip_input.c static int 
ip_rcv_finish(struct sk_buff *skb)

Now if i want to use this function i need to initialize a pointer to 
this function.

To be able to do that i need the address of the function.

I've seen that from user space i can read /proc/kallsyms to get an 
address of a symbol. Is their any similar mechanism exist where i can 
read the symbol table to extract a symbol's address from kernel space?

cheers
arif


^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: Calling ip_rcv_finish() from a module
  2012-12-02 10:38 Calling ip_rcv_finish() from a module arif
@ 2012-12-04 18:18 ` Jan Engelhardt
  0 siblings, 0 replies; 2+ messages in thread
From: Jan Engelhardt @ 2012-12-04 18:18 UTC (permalink / raw)
  To: arif; +Cc: netfilter-devel

On Sunday 2012-12-02 11:38, arif wrote:

> arif@khost:~/src/linux$ global -x ip_rcv_finish
> ip_rcv_finish     319 net/ipv4/ip_input.c static int ip_rcv_finish(struct
> sk_buff *skb)
>
> Now if i want to use this function i need to initialize a pointer to this
> function.
> To be able to do that i need the address of the function.
>
> I've seen that from user space i can read /proc/kallsyms to get an address of a
> symbol. Is their any similar mechanism exist where i can read the symbol table
> to extract a symbol's address from kernel space?

No. The function could be inlined and as such not even exist.

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2012-12-02 10:38 Calling ip_rcv_finish() from a module arif
2012-12-04 18:18 ` Jan Engelhardt

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