MCUXpresso SDK中的主题 SDK API to get network interface details

SDK API to get network interface details

Sreeshma — Wed, 02 Feb 2022 06:12:32 GMT

I am using imxrt1170 board with SDK 2.10.1 for testing TCP communication. I need to read the network interface details from my task. Similar to the linux api getifaddrs. I found that the stack keeps the network details in netif structure but couldn't find an API to get the same. Kindly please help.

Re: SDK API to get network interface details

danielchen — Wed, 02 Feb 2022 08:16:48 GMT

Please refer to LwIP API

struct netif * netif_get_by_index(u8_t idex)

struct netif* netif_find(const char *name)

Please refer to below link for more details

https://www.nongnu.org/lwip/2_1_x/group__netif.html

Regards

Daniel

Re: SDK API to get network interface details

Sreeshma — Wed, 02 Feb 2022 08:55:49 GMT

@danielchen thank u so much for the quick response.

If I call struct netif * netif_get_by_index(u8_t idex) from my task the execution gets aborted at sys_assert. Same is the case with netif_find. Exception occurs from LWIP_ASSERT_CORE_LOCKED();

I can use below APIs

unsigned int
lwip_if_nametoindex(const char *ifname)

char *
lwip_if_indextoname(unsigned int ifindex, char *ifname)