[RTnet-developers] Socket RAW

[Jorge A. <j-a...@cr...>]

Jan,


I've looked in the af_packet.c file and i arrive to some conclusions for the RAW packet implementation, but i have some doubts regardind the rtskb struct.

Especialy in:

rtsckb.h - line 194
    /* link layer */
    union
    {
        struct ethhdr   *ethernet;
        unsigned char   *raw;
    } mac;

i know that  "struct ethhdr   *ethernet; " keeps the source and destination mac address of the frame, but wath values "unsigned char   *raw;" can have?


And another question,
Does not existe any field in the rtskb struct that has all the Ethernet frame inside (Destination Address, Source Address, Protocol, Data)? In the driver everything is divided right?


One thing that i'm thinking is reconstruct a buffer with all this information and return it to the user. This way the user has all the Ethernet frame in user space and can do anything he wants.


Please Comment my ideias.

Thanks
-- 
Jorge Almeida
j-a...@cr...
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