NetIF Struct Reference

#include <tcpip.h>

Collaboration diagram for NetIF:

Data Fields
struct netif *	next
ip_addr_t	ip_addr
ip_addr_t	netmask
ip_addr_t	gw
netif_input_fn	input
netif_output_fn	output
netif_linkoutput_fn	linkoutput
void *	state
void *	client_data [LWIP_NETIF_CLIENT_DATA_INDEX_MAX+LWIP_NUM_NETIF_CLIENT_DATA]
u8	rs_count
u16	mtu
u8	hwaddr_len
u8	hwaddr [NETIF_MAX_HWADDR_LEN]
u8	flags
char	name [2]
u8	num

Detailed Description

Generic data structure used for all lwIP network interfaces. The following fields should be filled in by the initialization function for the device driver: hwaddr_len, hwaddr[], mtu, flags

Definition at line 1065 of file tcpip.h.

Field Documentation

client_data

void* NetIF::client_data[LWIP_NETIF_CLIENT_DATA_INDEX_MAX+LWIP_NUM_NETIF_CLIENT_DATA]

Definition at line 1121 of file tcpip.h.

flags

u8 NetIF::flags

flags (

See also

Flags)

Definition at line 1145 of file tcpip.h.

Referenced by SMapIFInit().

gw

ip_addr_t NetIF::gw

Definition at line 1073 of file tcpip.h.

hwaddr

u8 NetIF::hwaddr[NETIF_MAX_HWADDR_LEN]

link level hardware address of this interface

Definition at line 1143 of file tcpip.h.

Referenced by SMapIFInit().

hwaddr_len

u8 NetIF::hwaddr_len

number of bytes used in hwaddr

Definition at line 1141 of file tcpip.h.

Referenced by SMapIFInit().

input

netif_input_fn NetIF::input

This function is called by the network device driver to pass a packet up the TCP/IP stack.

Definition at line 1084 of file tcpip.h.

ip_addr

ip_addr_t NetIF::ip_addr

IP address configuration in network byte order

Definition at line 1071 of file tcpip.h.

linkoutput

netif_linkoutput_fn NetIF::linkoutput

This function is called by ethernet_output() when it wants to send a packet on the interface. This function outputs the pbuf as-is on the link medium.

Definition at line 1095 of file tcpip.h.

Referenced by SMapIFInit().

mtu

u16 NetIF::mtu

maximum transfer unit (in bytes)

Definition at line 1139 of file tcpip.h.

Referenced by SMapIFInit().

name

char NetIF::name[2]

descriptive abbreviation

Definition at line 1147 of file tcpip.h.

Referenced by SMapIFInit().

netmask

ip_addr_t NetIF::netmask

Definition at line 1072 of file tcpip.h.

next

struct netif* NetIF::next

pointer to next in linked list

Definition at line 1067 of file tcpip.h.

num

u8 NetIF::num

number of this interface

Definition at line 1149 of file tcpip.h.

output

netif_output_fn NetIF::output

This function is called by the IP module when it wants to send a packet on the interface. This function typically first resolves the hardware address, then sends the packet. For ethernet physical layer, this is usually etharp_output()

Definition at line 1090 of file tcpip.h.

Referenced by SMapIFInit().

rs_count

u8 NetIF::rs_count

Number of Router Solicitation messages that remain to be sent.

Definition at line 1129 of file tcpip.h.

state

void* NetIF::state

This field can be set by the device driver and could point to state information for the device.

Definition at line 1119 of file tcpip.h.

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The documentation for this struct was generated from the following file:

• common/include/tcpip.h