inet Directory Reference

Files
	arp.c
	ARP: finding the hardware (MAC) address of an IPv4 address on the link.
	ether.c
	Ethernet, and the Internet checksum.
	icmp.c
	ICMP.
	ifioctl.c
	The network interfaces' ioctl() requests, made on an AF_INET socket.
	ipv4.c
	IPv4.
	socket.c
	AF_INET datagram sockets: UDP (SOCK_DGRAM), and ping sockets (SOCK_DGRAM with IPPROTO_ICMP), which send echo requests and receive the replies, without needing root.
	tcp_input.c
	TCP input (RFC 9293 3.10.7, "SEGMENT ARRIVES").
	tcp_output.c
	TCP output.
	tcp_socket.c
	TCP connections (struct tcp_pcb) and their sockets (SOCK_STREAM).
	udp.c
	UDP input.