cerebnismus/ping

raw packet craft

PING in C

Description

This program is used to send ICMP echo requests and receive ICMP echo replies using raw sockets. It aims to demonstrate the packet-level communication using the ICMP protocol in a Linux environment. The program is aligned with the RFCs.

Getting Started

• This program must be run as root.
• The program is currently built for Linux systems.

$ gcc ping.c -lpthread
$ sudo ./a.out

• You can capture the ICMP packets sent or received by this program using packet capturing tools like Wireshark, tshark or tcpdump:

$ tcpdump -X -s0 -i iface -p icmp

TODOs

• OS Support: Add support for OSX and Windows.
• Dynamic Gateway: Dynamically retrieve the MAC address of the gateway.
• ICMP Error Messages: Add support for ICMP error messages.
• ICMP Redirect: Add support for ICMP redirect messages.
• ICMP Timestamp: Add support for ICMP timestamp messages.
• ICMP Address Mask: Add support for ICMP address mask messages.
• ICMP Router Discovery: Add support for ICMP router discovery messages.
• ICMP Traceroute: Add support for ICMP traceroute messages.

Disclaimer

Please use this program responsibly and ethically. Unauthorized packet sending or sniffing may be illegal in some jurisdictions. The author of this program is not responsible for any misuse of this program.