BK NETIF

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Netif API Reference

Header File

Functions

bk_err_t bk_netif_init(void)

Initialize the TCP/IP stack.

Attention

This API should be called exactly once from application code, when the application starts up.

返回

  • BK_OK: success

  • BK_FAIL: otherwise

bk_err_t bk_netif_set_ip4_config(netif_if_t ifx, const netif_ip4_config_t *config)

Set netif interface’s IP4 address information.

This function is mainly used to set a static IP on an interface.

Attention

1. For STA, if this API never calls, it gets the IP address via DHCP by default.

2. If the interface is already up, we need to stop the interface first before calling this API, or restart the interface after the this API is called.

3. Currently no sanity checking for the IP4 address to be configured, also no checking about the relationship between ip/mask/gateway/dns, the API caller need to guarantee that the correctness of the configured info.

4. Avoid configuring same subnet for STA and AP.

参数
  • ifx – The interface index

  • config – the IP4 information of the interface

返回

  • BK_OK: succeed

  • BK_ERR_NETIF_IF: invalid netif interface ID

  • BK_ERR_NULL_PARAM: config is NULL

bk_err_t bk_netif_get_ip4_config(netif_if_t ifx, netif_ip4_config_t *config)

Get netif interface’s IP address information.

If the interface is up, IP information is read directly from the TCP/IP stack. If the interface is down, the API just return all 0 information

参数
  • ifx – netif interface ID

  • config – store the IP4 configuration info

返回

  • BK_OK: succeed

  • BK_ERR_NETIF_IF: invalid netif interface ID

  • BK_ERR_NULL_PARAM: config is NULL

bk_err_t bk_netif_get_ip6_addr_info(netif_if_t ifx)

Get netif interface’s IP6 address information.

If the interface is up, IP6 information is read directly from the TCP/IP stack. If the interface is down, the API just return all 0 information

参数

ifx – netif interface ID

返回

  • BK_OK: succeed

  • BK_ERR_NETIF_IF: invalid netif interface ID

  • BK_ERR_NULL_PARAM: config is NULL

bk_err_t bk_netif_dhcpc_start(netif_if_t ifx)

Start the DHCP client for specified interface.

If this API is called, the interface will get the IP address via DHCP.

If the interface is has a static IP and is already up, we need to stop the interface (for STA, call bk_wifi_sta_stop() or bk_wifi_sta_disconnect() to stop the interface) before this API is called, or restart the interface after this API is called.

参数

ifx – netif interface ID, currently only support NETIF_IF_STA.

返回

  • BK_OK: succeed

  • BK_ERR_NETIF_IF: invalid netif interface ID

bk_err_t bk_netif_static_ip(netif_ip4_config_t static_ip4_config)

this function is only for the interface of NETIF_IF_STA to set a static IP .

call back this function in netif_wifi_event_cb()(in components/bk_netif/bk_netif.c) when case EVENT_WIFI_STA_CONNECTED, and pass the param static_ip4_config includes ip, mask, gateway and dns for your static IP config. example: switch (event_id) { case EVENT_WIFI_STA_CONNECTED: #if CONFIG_LWIP bk_netif_static_ip(static_ip4_config); sta_ip_start(); #endif

参数

static_ip4_config – ipv4 config for this netif(only for NETIF_IF_STA).

返回

  • BK_OK: succeed

  • else: fail

Netif API Typedefs

Header File

Structures

struct netif_ip4_config_t

Public Members

char ip[NETIF_IP4_STR_LEN]

Local IP address.

char mask[NETIF_IP4_STR_LEN]

Netmask.

char gateway[NETIF_IP4_STR_LEN]

Gateway IP address.

char dns[NETIF_IP4_STR_LEN]

DNS server IP address.

struct netif_event_got_ip4_t

Public Members

netif_if_t netif_if

Netif interface ID

char ip[NETIF_IP4_STR_LEN]

Local IP address.

Macros

NETIF_IP4_STR_LEN

IP4 string length

BK_ERR_NETIF_IF

Invalid interface ID

Enumerations

enum netif_if_t

Values:

enumerator NETIF_IF_STA

WiFi STA interface

enumerator NETIF_IF_AP

WiFi AP interface

enumerator NETIF_IF_COUNT

Number of BK netif

enumerator NETIF_IF_INVALID

Invalid BK netif

enum netif_event_t

Values:

enumerator EVENT_NETIF_GOT_IP4

Netif get IP4 event

enumerator EVENT_NETIF_DHCP_TIMEOUT