esp-netif: support for ipv6 addr types and indices

components/esp_netif/include/esp_netif_ip_addr.h

@@ -99,6 +99,24 @@ typedef struct _ip_addr {
     } u_addr;
     uint8_t type;
 } esp_ip_addr_t;
+ 
+typedef enum {
+    ESP_IP6_ADDR_IS_UNKNOWN,
+    ESP_IP6_ADDR_IS_GLOBAL,
+    ESP_IP6_ADDR_IS_LINK_LOCAL,
+    ESP_IP6_ADDR_IS_SITE_LOCAL,
+    ESP_IP6_ADDR_IS_UNIQUE_LOCAL,
+    ESP_IP6_ADDR_IS_IPV4_MAPPED_IPV6
+} esp_ip6_addr_type_t;
+
+/**
+ * @brief  Get the IPv6 address type
+ *
+ * @param[in]  ip6_addr IPv6 type
+ *
+ * @return IPv6 type in form of enum esp_ip6_addr_type_t
+ */
+esp_ip6_addr_type_t esp_netif_ip6_get_addr_type(esp_ip6_addr_t* ip6_addr);
 
 #ifdef __cplusplus
 }

components/esp_netif/include/esp_netif_types.h

@@ -120,6 +120,7 @@ typedef struct {
     int if_index;                    /*!< Interface index for which the event is received (left for legacy compilation) */
     esp_netif_t *esp_netif;          /*!< Pointer to corresponding esp-netif object */
     esp_netif_ip6_info_t ip6_info;   /*!< IPv6 address of the interface */
+    int ip_index;                    /*!< IPv6 address index */
 } ip_event_got_ip6_t;
 
 /** Event structure for IP_EVENT_AP_STAIPASSIGNED event */

components/esp_netif/lwip/esp_netif_lwip.c

@@ -1370,7 +1370,26 @@ esp_err_t esp_netif_get_dns_info(esp_netif_t *esp_netif, esp_netif_dns_type_t ty
     return esp_netif_lwip_ipc_call(esp_netif_get_dns_info_api, esp_netif, (void *)&dns_param);
 }
 
-static void esp_netif_nd6_cb(struct netif *p_netif, uint8_t ip_idex)
+esp_ip6_addr_type_t esp_netif_ip6_get_addr_type(esp_ip6_addr_t* ip6_addr)
+{
+    ip6_addr_t* lwip_ip6_info = (ip6_addr_t*)ip6_addr;
+
+    if (ip6_addr_isglobal(lwip_ip6_info)) {
+        return ESP_IP6_ADDR_IS_GLOBAL;
+    } else if (ip6_addr_islinklocal(lwip_ip6_info)) {
+        return ESP_IP6_ADDR_IS_LINK_LOCAL;
+    } else if (ip6_addr_issitelocal(lwip_ip6_info)) {
+        return ESP_IP6_ADDR_IS_SITE_LOCAL;
+    } else if (ip6_addr_isuniquelocal(lwip_ip6_info)) {
+        return ESP_IP6_ADDR_IS_UNIQUE_LOCAL;
+    } else if (ip6_addr_isipv4mappedipv6(lwip_ip6_info)) {
+        return ESP_IP6_ADDR_IS_IPV4_MAPPED_IPV6;
+    }
+    return ESP_IP6_ADDR_IS_UNKNOWN;
+
+}
+
+static void esp_netif_nd6_cb(struct netif *p_netif, uint8_t ip_index)
 {
     ESP_LOGD(TAG, "%s lwip-netif:%p", __func__, p_netif);
     if (!p_netif) {
@@ -1381,9 +1400,9 @@ static void esp_netif_nd6_cb(struct netif *p_netif, uint8_t ip_idex)
     esp_netif_ip6_info_t ip6_info;
     ip6_addr_t lwip_ip6_info;
     //notify event
-    ip_event_got_ip6_t evt = { .esp_netif = p_netif->state, .if_index = -1 };
+    ip_event_got_ip6_t evt = { .esp_netif = p_netif->state, .if_index = -1, .ip_index = ip_index };
 
-    ip6_addr_set(&lwip_ip6_info, ip_2_ip6(&p_netif->ip6_addr[ip_idex]));
+    ip6_addr_set(&lwip_ip6_info, ip_2_ip6(&p_netif->ip6_addr[ip_index]));
 #if LWIP_IPV6_SCOPES
     memcpy(&ip6_info.ip, &lwip_ip6_info, sizeof(esp_ip6_addr_t));
 #else

examples/common_components/protocol_examples_common/connect.c

@@ -73,6 +73,8 @@ static void on_got_ipv6(void *arg, esp_event_base_t event_base,
     ESP_LOGI(TAG, "Got IPv6 event!");
     memcpy(&s_ipv6_addr, &event->ip6_info.ip, sizeof(s_ipv6_addr));
     xEventGroupSetBits(s_connect_event_group, GOT_IPV6_BIT);
+    ESP_LOGI(TAG, "IPv6 address: " IPV6STR ", index: %d, type: %d", IPV62STR(s_ipv6_addr), event->ip_index, esp_ip6_get_addr_type(&s_ipv6_addr));
+
 }
 
 #endif // CONFIG_EXAMPLE_CONNECT_IPV6