TCP ACKs carrying data

Hello, i got some problems concerning tcp realization in kernel (v 2.4). i need to make some modifications to tcp to be able to transfer data within ACK segments...(initially their data field is empty) i suppose i should modify the following functions: /net/ipv4/tcp_input.c > tcp_ack() - for

debugging TCP routines using User Mode Linux

Hello, i'm dealing with some tcp modifications in linux kernel and surely i need debugging for these purposes i use User Mode Linux and it works ok but the problem debugging namely tcp (or any other network protocol, i suppose) is different tcp-timeouts while I tracing the code (tracing looks