ft_nmap

A basic nmap clone in Rust, written to learn TCP/IP and raw packet crafting. Uses libpnet.

Author

Emmanuel Guefif

Getting Started

cargo build
sudo setcap CAP_NET_RAW+eip ./target/debug/ft_nmap
./target/debug/ft_nmap -sS -t 192.168.1.1 -p 22,80,443

Or use run.sh which does the above. Must be run from the project root (reads ./services.csv).

Parameters

Flag	Description
-t <target>	Target IP or hostname
-p <ports>	Ports: 80, 80,443, 1-1024, or combined 22,80-90,443
-sS / -sF / -sX / -sN / -sA	Scan type (default: SYN)
-i <interface>	Network interface (default: wlo1)

Scan Types

Flag	Type	How it works
-sS	SYN	SYN-ACK = open, RST = closed, timeout = filtered
-sF	FIN	RST = closed, timeout = open|filtered
-sX	XMAS	FIN+URG+PSH set. Same logic as FIN.
-sN	NULL	No flags set. Same logic as FIN.
-sA	ACK	RST = unfiltered, timeout = filtered (maps firewall rules)