Port of LwIP performed by Ralf in 2010. Not recommended for use with recent mbed libraries, but good demos of raw LwIP possible
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netif Struct Reference
Generic data structure used for all lwIP network interfaces.
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#include <netif.h >
struct netif * next pointer to next in linked list struct ip_addr ip_addr IP address configuration in network byte order. err_t(* 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. err_t(* 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. err_t(* 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. void(* status_callback )(struct netif *netif ) This function is called when the netif state is set to up or down. void(* link_callback )(struct netif *netif ) This function is called when the netif link is set to up or down. void * state This field can be set by the device driver and could point to state information for the device. struct dhcp * dhcp the DHCP client state information for this netif struct autoip * autoip the AutoIP client state information for this netif u8_t hwaddr_len number of bytes used in hwaddr u8_t hwaddr [NETIF_MAX_HWADDR_LEN] link level hardware address of this interface u16_t mtu maximum transfer unit (in bytes) u8_t flags flags (see NETIF_FLAG_ above) char name [2] descriptive abbreviation u8_t num number of this interface u8_t link_type link type (from "snmp_ifType" enum from snmp.h ) u32_t link_speed (estimate) link speed u32_t ts timestamp at last change made (up/down) u32_t ifinoctets counters
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 88 of file netif.h .
Field Documentation
the AutoIP client state information for this netif
Definition at line 128 of file netif.h .
the DHCP client state information for this netif
Definition at line 124 of file netif.h .
flags (see NETIF_FLAG_ above)
Definition at line 141 of file netif.h .
u8_t hwaddr [NETIF_MAX_HWADDR_LEN]
link level hardware address of this interface
Definition at line 137 of file netif.h .
number of bytes used in hwaddr
Definition at line 135 of file netif.h .
This function is called by the network device driver to pass a packet up the TCP/IP stack.
Definition at line 99 of file netif.h .
IP address configuration in network byte order.
Definition at line 93 of file netif.h .
This function is called when the netif link is set to up or down.
Definition at line 117 of file netif.h .
(estimate) link speed
Definition at line 150 of file netif.h .
link type (from "snmp_ifType" enum from snmp.h )
Definition at line 148 of file netif.h .
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.
Definition at line 108 of file netif.h .
maximum transfer unit (in bytes)
Definition at line 139 of file netif.h .
descriptive abbreviation
Definition at line 143 of file netif.h .
pointer to next in linked list
Definition at line 90 of file netif.h .
number of this interface
Definition at line 145 of file netif.h .
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.
Definition at line 103 of file netif.h .
This field can be set by the device driver and could point to state information for the device.
Definition at line 121 of file netif.h .
This function is called when the netif state is set to up or down.
Definition at line 112 of file netif.h .
timestamp at last change made (up/down)
Definition at line 152 of file netif.h .
Rod Coleman
1.7.2