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feat(esp_netif): add an API to get all preferred ip6 addresses

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This commit is contained in:
zwx 2024-07-29 21:01:49 +08:00
parent 99775566c5
commit 9c0c0ce994
2 changed files with 36 additions and 1 deletions
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13
components/esp_netif/include/esp_netif.h
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2019-2023 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2019-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -821,6 +821,17 @@ esp_err_t esp_netif_get_ip6_global(esp_netif_t *esp_netif, esp_ip6_addr_t *if_ip
* number of returned IPv6 addresses
*/
int esp_netif_get_all_ip6(esp_netif_t *esp_netif, esp_ip6_addr_t if_ip6[]);
/**
* @brief Get all preferred IPv6 addresses of the specified interface
*
* @param[in] esp_netif Handle to esp-netif instance
* @param[out] if_ip6 Array of IPv6 addresses will be copied to the argument
*
* @return
* number of returned IPv6 addresses
*/
int esp_netif_get_all_preferred_ip6(esp_netif_t *esp_netif, esp_ip6_addr_t if_ip6[]);
#endif
/**

24
components/esp_netif/lwip/esp_netif_lwip.c
View File

@ -2159,6 +2159,30 @@ int esp_netif_get_all_ip6(esp_netif_t *esp_netif, esp_ip6_addr_t if_ip6[])
}
return addr_count;
}
int esp_netif_get_all_preferred_ip6(esp_netif_t *esp_netif, esp_ip6_addr_t if_ip6[])
{
ESP_LOGV(TAG, "%s esp-netif:%p", __func__, esp_netif);
if (esp_netif == NULL || if_ip6 == NULL) {
return 0;
}
int addr_count = 0;
struct netif *p_netif = esp_netif->lwip_netif;
if (p_netif != NULL && netif_is_up(p_netif)) {
for (int i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) {
// Only return the IPs which are:
// 1. the state is preferred
// 2. not the IP6_ADDR_ANY(all bits are `0`)
if (ip6_addr_ispreferred(netif_ip6_addr_state(p_netif, i)) && !ip_addr_cmp(&p_netif->ip6_addr[i], IP6_ADDR_ANY)) {
memcpy(&if_ip6[addr_count++], &p_netif->ip6_addr[i], sizeof(ip6_addr_t));
}
}
}
return addr_count;
}
#endif
esp_netif_flags_t esp_netif_get_flags(esp_netif_t *esp_netif)