netif Struct Reference

#include <netif.h>

Collaboration diagram for netif:

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Data Fields
netif *	next
ip_addr	ip_addr
ip_addr	netmask
ip_addr	gw
err_t(*	input )(struct pbuf *p, struct netif *inp)
err_t(*	output )(struct netif *netif, struct pbuf *p, struct ip_addr *ipaddr)
err_t(*	linkoutput )(struct netif *netif, struct pbuf *p)
void *	state
unsigned char	hwaddr_len
unsigned char	hwaddr [NETIF_MAX_HWADDR_LEN]
u16_t	mtu
char	name [2]
u8_t	num
u8_t	flags

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Detailed Description

generic data structure used for all lwIP network interfaces

Definition at line 61 of file netif.h.

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Field Documentation

u8_t netif::flags

NETIF_FLAG_* Definition at line 102 of file netif.h. Referenced by dhcp_start().

struct ip_addr netif::gw

Definition at line 70 of file netif.h. Referenced by etharp_output(), and netif_set_gw().

unsigned char netif::hwaddr[NETIF_MAX_HWADDR_LEN]

link level hardware address of this interface Definition at line 94 of file netif.h. Referenced by dhcp_create_request(), dhcp_recv(), etharp_output(), etharp_query(), rt_3c905cif_init(), and rt_rtl8139if_init().

unsigned char netif::hwaddr_len

number of bytes used in hwaddr Definition at line 92 of file netif.h. Referenced by dhcp_create_request(), dhcp_recv(), etharp_arp_input(), etharp_output(), etharp_query(), rt_3c905cif_init(), rt_rtl8139if_init(), and update_arp_entry().

err_t(* netif::input)(struct pbuf *p, struct netif *inp)

This function is called by the network device driver to pass a packet up the TCP/IP stack. Referenced by loopif_output(), netif_add(), rt_3c905cif_input(), and rt_rtl8139if_input().

struct ip_addr netif::ip_addr

IP address configuration in network byte order Definition at line 68 of file netif.h. Referenced by arp_arp_input(), arp_ip_input(), arp_query(), dhcp_create_request(), etharp_arp_input(), etharp_ip_input(), etharp_output(), etharp_query(), ip_output_if(), netif_set_ipaddr(), rt_3com905cif_low_level_init(), and rt_rtl8139if_low_level_init().

err_t(* netif::linkoutput)(struct netif *netif, struct pbuf *p)

This function is called by the ARP module when it wants to send a packet on the interface. This function outputs the pbuf as-is on the link medium. Referenced by etharp_arp_input(), etharp_query(), rt_3c905cif_init(), rt_rtl8139if_init(), and update_arp_entry().

u16_t netif::mtu

maximum transfer unit (in bytes) Definition at line 96 of file netif.h. Referenced by ip_frag(), ip_output_if(), and slipif_init().

char netif::name[2]

descriptive abbreviation Definition at line 98 of file netif.h. Referenced by dhcp_start(), ip_output_if(), loopif_init(), netif_set_gw(), netif_set_ipaddr(), netif_set_netmask(), rt_3c905cif_init(), rt_rtl8139if_init(), and slipif_init().

struct ip_addr netif::netmask

Definition at line 69 of file netif.h. Referenced by arp_ip_input(), etharp_ip_input(), etharp_output(), icmp_input(), ip_input(), and netif_set_netmask().

struct netif* netif::next

pointer to next in linked list Definition at line 63 of file netif.h. Referenced by netif_add(), and netif_remove().

u8_t netif::num

number of this interface Definition at line 100 of file netif.h. Referenced by dhcp_start(), ip_output_if(), netif_add(), netif_set_gw(), netif_set_ipaddr(), netif_set_netmask(), and slipif_init().

err_t(* netif::output)(struct netif *netif, struct pbuf *p, struct ip_addr *ipaddr)

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. Referenced by ip_frag(), ip_output_if(), loopif_init(), rt_3c905cif_init(), rt_rtl8139if_init(), and slipif_init().

void* netif::state

This field can be set by the device driver and could point to state information for the device. Definition at line 86 of file netif.h. Referenced by netif_add(), rt_3c905cif_init(), rt_3c905cif_input(), rt_3com905cif_low_level_init(), rt_rtl8139if_init(), rt_rtl8139if_input(), rt_rtl8139if_low_level_init(), slipif_init(), slipif_input(), and slipif_output().

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

• netif.h

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