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netif Struct Reference
Generic data structure used for all lwIP network interfaces. More...
#include <netif.h>
Data Fields | |
| struct netif * | next |
| pointer to next in linked list | |
| ip_addr_t | ip_addr |
| IP address configuration in network byte order. | |
| ip_addr_t | ip6_addr [LWIP_IPV6_NUM_ADDRESSES] |
| Array of IPv6 addresses for this netif. | |
| u8_t | ip6_addr_state [LWIP_IPV6_NUM_ADDRESSES] |
| The state of each IPv6 address (Tentative, Preferred, etc). | |
| u32_t | ip6_addr_valid_life [LWIP_IPV6_NUM_ADDRESSES] |
| Remaining valid and preferred lifetime of each IPv6 address, in seconds. | |
| netif_input_fn | input |
| This function is called by the network device driver to pass a packet up the TCP/IP stack. | |
| netif_output_fn | output |
| This function is called by the IP module when it wants to send a packet on the interface. | |
| netif_linkoutput_fn | linkoutput |
| This function is called by ethernet_output() when it wants to send a packet on the interface. | |
| netif_output_ip6_fn | output_ip6 |
| This function is called by the IPv6 module when it wants to send a packet on the interface. | |
| netif_status_callback_fn | status_callback |
| This function is called when the netif state is set to up or down. | |
| netif_status_callback_fn | link_callback |
| This function is called when the netif link is set to up or down. | |
| netif_status_callback_fn | remove_callback |
| This function is called when the netif has been removed. | |
| void * | state |
| This field can be set by the device driver and could point to state information for the device. | |
| u8_t | ip6_autoconfig_enabled |
| is this netif enabled for IPv6 autoconfiguration | |
| u8_t | rs_count |
| Number of Router Solicitation messages that remain to be sent. | |
| u16_t | mtu |
| maximum transfer unit (in bytes) | |
| u8_t | hwaddr_len |
| number of bytes used in hwaddr | |
| u8_t | hwaddr [NETIF_MAX_HWADDR_LEN] |
| link level hardware address of this interface | |
| u8_t | flags |
| flags ( | |
| char | name [2] |
| descriptive abbreviation | |
| u8_t | num |
| number of this interface | |
| u8_t | link_type |
| link type (from "snmp_ifType" enum from snmp_mib2.h) | |
| u32_t | link_speed |
| (estimate) link speed | |
| u32_t | ts |
| timestamp at last change made (up/down) | |
| struct stats_mib2_netif_ctrs | mib2_counters |
| counters | |
| netif_igmp_mac_filter_fn | igmp_mac_filter |
| This function could be called to add or delete an entry in the multicast filter table of the ethernet MAC. | |
| netif_mld_mac_filter_fn | mld_mac_filter |
| This function could be called to add or delete an entry in the IPv6 multicast filter table of the ethernet MAC. | |
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 225 of file netif.h.
Field Documentation
| u8_t hwaddr[NETIF_MAX_HWADDR_LEN] |
| u8_t hwaddr_len |
| u8_t ip6_addr_state[LWIP_IPV6_NUM_ADDRESSES] |
The state of each IPv6 address (Tentative, Preferred, etc).
- See also:
- ip6_addr.h
| u32_t ip6_addr_valid_life[LWIP_IPV6_NUM_ADDRESSES] |
| u32_t link_speed |
| u8_t link_type |
link type (from "snmp_ifType" enum from snmp_mib2.h)
This function is called by the IPv6 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 ethip6_output()
| u8_t rs_count |
| void* state |
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