96 lines
2.7 KiB
C
96 lines
2.7 KiB
C
|
// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
|
||
|
|
//
|
||
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
// you may not use this file except in compliance with the License.
|
||
|
|
// You may obtain a copy of the License at
|
||
|
|
|
||
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
//
|
||
|
|
// Unless required by applicable law or agreed to in writing, software
|
||
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
// See the License for the specific language governing permissions and
|
||
|
|
// limitations under the License.
|
||
|
|
|
||
|
|
#include "esp_netif.h"
|
||
|
|
#include "sys/queue.h"
|
||
|
|
#include "esp_log.h"
|
||
|
|
|
||
|
|
//
|
||
|
|
// Purpose of this module is to provide list of esp-netif structures
|
||
|
|
// - this module has no dependency on a specific network stack (lwip)
|
||
|
|
//
|
||
|
|
|
||
|
|
static const char *TAG = "esp_netif_objects";
|
||
|
|
|
||
|
|
typedef struct slist_netifs_s slist_netifs_t;
|
||
|
|
struct slist_netifs_s {
|
||
|
|
esp_netif_t *netif;
|
||
|
|
SLIST_ENTRY(slist_netifs_s) next;
|
||
|
|
};
|
||
|
|
|
||
|
|
SLIST_HEAD(slisthead, slist_netifs_s) s_head = { .slh_first = NULL, };
|
||
|
|
|
||
|
|
static size_t s_esp_netif_counter = 0;
|
||
|
|
|
||
|
|
ESP_EVENT_DEFINE_BASE(IP_EVENT);
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// List manipulation functions
|
||
|
|
//
|
||
|
|
esp_err_t esp_netif_add_to_list(esp_netif_t *netif)
|
||
|
|
{
|
||
|
|
struct slist_netifs_s *item = calloc(1, sizeof(struct slist_netifs_s));
|
||
|
|
ESP_LOGD(TAG, "%s %p", __func__, netif);
|
||
|
|
if (item == NULL) {
|
||
|
|
return ESP_ERR_NO_MEM;
|
||
|
|
}
|
||
|
|
item->netif = netif;
|
||
|
|
|
||
|
|
SLIST_INSERT_HEAD(&s_head, item, next);
|
||
|
|
++s_esp_netif_counter;
|
||
|
|
ESP_LOGD(TAG, "%s netif added successfully (total netifs: %d)", __func__, s_esp_netif_counter);
|
||
|
|
return ESP_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
esp_err_t esp_netif_remove_from_list(esp_netif_t *netif)
|
||
|
|
{
|
||
|
|
struct slist_netifs_s *item;
|
||
|
|
ESP_LOGV(TAG, "%s %p", __func__, netif);
|
||
|
|
SLIST_FOREACH(item, &s_head, next) {
|
||
|
|
if (item->netif == netif) {
|
||
|
|
SLIST_REMOVE(&s_head, item, slist_netifs_s, next);
|
||
|
|
assert(s_esp_netif_counter > 0);
|
||
|
|
--s_esp_netif_counter;
|
||
|
|
ESP_LOGD(TAG, "%s netif successfully removed (total netifs: %d)", __func__, s_esp_netif_counter);
|
||
|
|
free(item);
|
||
|
|
return ESP_OK;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return ESP_ERR_NOT_FOUND;
|
||
|
|
}
|
||
|
|
|
||
|
|
size_t esp_netif_get_nr_of_ifs(void)
|
||
|
|
{
|
||
|
|
return s_esp_netif_counter;
|
||
|
|
}
|
||
|
|
|
||
|
|
esp_netif_t* esp_netif_next(esp_netif_t* netif)
|
||
|
|
{
|
||
|
|
ESP_LOGV(TAG, "%s %p", __func__, netif);
|
||
|
|
struct slist_netifs_s *item;
|
||
|
|
if (netif == NULL) {
|
||
|
|
item = SLIST_FIRST(&s_head);
|
||
|
|
return (item == NULL) ? NULL : item->netif;
|
||
|
|
} else {
|
||
|
|
SLIST_FOREACH(item, &s_head, next) {
|
||
|
|
if (item->netif == netif) {
|
||
|
|
item = SLIST_NEXT(item, next);
|
||
|
|
return (item == NULL) ? NULL : item->netif;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return NULL;
|
||
|
|
}
|