IPv4 Network Stack More...

Topics
	Options
	Options for v4 of the Internet Protocol

Data Structures
struct	ip_hdr_t
	IPv4 Packet header. More...

struct	net_ipv4_stats_t
	IPv4 statistics structure. More...

struct	in_addr
	Structure used to store an IPv4 address. More...

struct	sockaddr_in
	Structure used to store an IPv4 address for a socket. More...

Macros
#define	INADDR_ANY 0x00000000
	Local IPv4 host address.

#define	INADDR_BROADCAST 0xFFFFFFFF
	IPv4 broadcast address.

#define	INADDR_NONE 0xFFFFFFFF
	IPv4 error address.

#define	INET_ADDRSTRLEN 16
	Length of a string form of a maximal IPv4 address.

Typedefs
typedef uint32_t	in_addr_t
	32-bit value used to store an IPv4 address.

Functions
net_ipv4_stats_t	net_ipv4_get_stats (void)
	Retrieve statistics from the IPv4 layer.

uint32	net_ipv4_address (const uint8 addr[4])
	Create a 32-bit IP address, based on the individual numbers contained within the IP.

void	net_ipv4_parse_address (uint32 addr, uint8 out[4])
	Parse an IP address that is packet into a uint32 into an array of the individual bytes.

Detailed Description

IPv4 Network Stack

Macro Definition Documentation

◆ INADDR_ANY

#define INADDR_ANY 0x00000000

Local IPv4 host address.

This address can be used by many things if you prefer to not specify the local address, and would rather it be detected automatically.

◆ INADDR_BROADCAST

#define INADDR_BROADCAST 0xFFFFFFFF

IPv4 broadcast address.

This address is the normal IPv4 broadcast address (255.255.255.255).

◆ INADDR_NONE

#define INADDR_NONE 0xFFFFFFFF

IPv4 error address.

This address is non-standard, but is available on many systems. It is used to detect failure from some functions that normally return addresses (such as the inet_addr function).

◆ INET_ADDRSTRLEN

#define INET_ADDRSTRLEN 16

Length of a string form of a maximal IPv4 address.

Typedef Documentation

◆ in_addr_t

typedef uint32_t in_addr_t

32-bit value used to store an IPv4 address.

Function Documentation

◆ net_ipv4_address()

uint32 net_ipv4_address ( const uint8 addr[4] )

Create a 32-bit IP address, based on the individual numbers contained within the IP.

Parameters

addr	Array of IP address octets.

Returns: The address, in host byte order.

◆ net_ipv4_get_stats()

net_ipv4_stats_t net_ipv4_get_stats ( void )

Retrieve statistics from the IPv4 layer.

Returns: The net_ipv4_stats_t structure.

◆ net_ipv4_parse_address()

void net_ipv4_parse_address	(	uint32	addr,
		uint8	out[4] )

Parse an IP address that is packet into a uint32 into an array of the individual bytes.