mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
87 lines
2.8 KiB
C
87 lines
2.8 KiB
C
|
// Copyright 2018 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 <stdio.h>
|
||
|
|
#include <assert.h>
|
||
|
|
#include "nvs.h"
|
||
|
|
#include "lwip/opt.h"
|
||
|
|
#include "lwip/dhcp.h"
|
||
|
|
#include "lwip/netif.h"
|
||
|
|
#include "esp_interface.h"
|
||
|
|
#include "tcpip_adapter.h"
|
||
|
|
#include "netif/dhcp_state.h"
|
||
|
|
|
||
|
|
#define DHCP_NAMESPACE "dhcp_state"
|
||
|
|
#define VALID_NETIF_ID(id) ((id < ESP_IF_MAX) && (id != ESP_IF_WIFI_AP))
|
||
|
|
|
||
|
|
static uint32_t restored_ip_addr[TCPIP_ADAPTER_IF_MAX];
|
||
|
|
static const char *interface_key[] = {"IF_STA", "IF_AP", "IF_ETH"};
|
||
|
|
|
||
|
|
_Static_assert(sizeof(interface_key) / sizeof(char*) == TCPIP_ADAPTER_IF_MAX,
|
||
|
|
"Number interface keys differs from number of interfaces");
|
||
|
|
|
||
|
|
bool dhcp_ip_addr_restore(void *netif)
|
||
|
|
{
|
||
|
|
nvs_handle nvs;
|
||
|
|
bool err = false;
|
||
|
|
struct netif *net = (struct netif *)netif;
|
||
|
|
struct dhcp *dhcp = netif_dhcp_data(net);
|
||
|
|
esp_interface_t netif_id = tcpip_adapter_get_esp_if(net);
|
||
|
|
|
||
|
|
if(VALID_NETIF_ID(netif_id)) {
|
||
|
|
uint32_t *ip_addr = &dhcp->offered_ip_addr.addr;
|
||
|
|
if (nvs_open(DHCP_NAMESPACE, NVS_READONLY, &nvs) == ESP_OK) {
|
||
|
|
if (nvs_get_u32(nvs, interface_key[netif_id], ip_addr) == ESP_OK) {
|
||
|
|
restored_ip_addr[netif_id] = *ip_addr;
|
||
|
|
err = true;
|
||
|
|
}
|
||
|
|
nvs_close(nvs);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
void dhcp_ip_addr_store(void *netif)
|
||
|
|
{
|
||
|
|
nvs_handle nvs;
|
||
|
|
struct netif *net = (struct netif *)netif;
|
||
|
|
struct dhcp *dhcp = netif_dhcp_data(net);
|
||
|
|
uint32_t ip_addr = dhcp->offered_ip_addr.addr;
|
||
|
|
esp_interface_t netif_id = tcpip_adapter_get_esp_if(net);
|
||
|
|
|
||
|
|
if(VALID_NETIF_ID(netif_id)) {
|
||
|
|
if (restored_ip_addr[netif_id] != ip_addr) {
|
||
|
|
if (nvs_open(DHCP_NAMESPACE, NVS_READWRITE, &nvs) == ESP_OK) {
|
||
|
|
nvs_set_u32(nvs, interface_key[netif_id], ip_addr);
|
||
|
|
nvs_commit(nvs);
|
||
|
|
nvs_close(nvs);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void dhcp_ip_addr_erase(void *netif)
|
||
|
|
{
|
||
|
|
nvs_handle nvs;
|
||
|
|
struct netif *net = (struct netif *)netif;
|
||
|
|
esp_interface_t netif_id = tcpip_adapter_get_esp_if(net);
|
||
|
|
|
||
|
|
if(VALID_NETIF_ID(netif_id)) {
|
||
|
|
if (nvs_open(DHCP_NAMESPACE, NVS_READWRITE, &nvs) == ESP_OK) {
|
||
|
|
nvs_erase_key(nvs, interface_key[netif_id]);
|
||
|
|
nvs_commit(nvs);
|
||
|
|
nvs_close(nvs);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|