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Re: how to hack the sk_buff memory





On 10/8/07, Mansha Linux <mansha.linux@xxxxxxxxx> wrote:


On 10/4/07, Peter Teoh < htmldeveloper@xxxxxxxxx> wrote:
The whole net code is highly optimized - in the sense that it is
copied between different parts of the memory only twice - according to
"Linux Network Internals" - all the way to userspace (correct? if i
did not remember wrongly :-)).   And if you want to intercept, many
ways.   One is to intercept right after the packets is received from
the network card, which is the function net_rx_action(), and just
before sending is net_tx_action().
Above that the packet will be reassembled/disassembled according to
network protocols.
Have fun.





The goal my of my kernel module is to fill the sk_buff or use it before the network drivers use it for tx/rx. so, i have make this sk_buff unavailable for tx/rx.

--
regards,
Mansha

--
regards,
Mansha