Hello, I am developing an application for which I need to make small changes to the source code of 3c90x.c (3com ethernet driver). Indeed, I need to access - and modify - the contents of the packets right before they are sent on the wire. After examining sk_buff.h, function NICSendPacket of 3c90x.c and reading chapter 14 (Network Drivers) of the book Linux Device Drivers, I concluded that SocketBuffer->data points to the first octet of data in the packet. My question is: can I access the contents of the buffer simply by *(SocketBuffer->data) *(SocketBuffer->data+1) *(SocketBuffer->data+2) etc ? What is the layout of the octets starting at data ? Eth header, IP header, TCP header etc ,or ? Can I write new contents back to the buffer the same way ? Thanks in advance, Marcus. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
