• headerStructs.c

  All protocol headers structures

• combineProto.c

  L2-L3 protocol combination (IPv4-ICMP, IPv4-TCP, ARP-ARP and others)

• decoders.c

  Decoding of all protocol headers

• dataHandlers.c

  Module with different functions

• main.c

  Main C-file

• makefile

  Automatic assembly from object files

• modificators.c

  Modification of the protocol header fields for further forwarding (if you need it)

• modifyHandler.c

  Interface to manage protocol header modifications

• references.c

  Connecting the required libraries and declaration of all functions

• progAssembly.sh

  Quick build bash-script

Installation for sniffer state-machine and just sniffer is the same.

• 1. Install libpcap-dev

>>> sudo apt install libpcap-dev

• 2. Download project

>>> git clone https://github.com/RuslanGajiev/sniffer.git

• 3. Open the directory with project files and run the makefile to build sniffer

>>> make -f makefile

• 4. Clean your directory of object-files

>>> make clean

• 5. Run your sniffer with sudo(raw-sockets require it)

>>> sudo ./sniffer

• Or run ./progAssembly.sh and execute sniffer.