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Merge branch 'openthread/default_dnsserver_address' into 'master'

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openthread: Add menuconfig to set the default dns server address

See merge request espressif/esp-idf!23581
This commit is contained in:
Shu Chen 2023-05-15 10:33:14 +08:00
commit bb12cdaa08
5 changed files with 81 additions and 2 deletions
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7
components/openthread/Kconfig
View File

@ -179,6 +179,13 @@ menu "OpenThread"
help
Select this option to acquire NAT64 address from dns servers.
config OPENTHREAD_DNS_SERVER_ADDR
string "DNS server address (IPv4)"
depends on OPENTHREAD_DNS64_CLIENT
default "8.8.8.8"
help
Set the DNS server IPv4 address.
config OPENTHREAD_UART_BUFFER_SIZE
int "The uart received buffer size of openthread"
depends on OPENTHREAD_ENABLED

24
components/openthread/include/esp_openthread_dns64.h
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@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -13,6 +13,28 @@
extern "C" {
#endif
/**
* @brief This function initiizes the dns64 client.
*
* @return
* - ESP_OK on success
* - ESP_FAIL if OpenThread state changed callback fails to be registered
*
*/
esp_err_t esp_openthread_dns64_client_init(void);
/**
* @brief This function acquires the DNS server address.
*
* @param[out] dnsserver_addr The dns server address.
*
* @return
* - ESP_OK on sussess
* - ESP_ERR_INVALID_ARG if dnsserver_addr is NULL
* - ESP_ERR_INVALID_STATE if dns sever address not available
*/
esp_err_t esp_openthread_get_dnsserver_addr(ip6_addr_t *dnsserver_addr);
/**
* @brief This function acquires the NAT64 prefix in the Thread network.
*

1
components/openthread/include/esp_openthread_types.h
View File

@ -37,6 +37,7 @@ typedef enum {
OPENTHREAD_EVENT_TREL_ADD_IP6, /*!< OpenThread stack added TREL IPv6 address */
OPENTHREAD_EVENT_TREL_REMOVE_IP6, /*!< OpenThread stack removed TREL IPv6 address */
OPENTHREAD_EVENT_TREL_MULTICAST_GROUP_JOIN, /*!< OpenThread stack joined TREL IPv6 multicast group */
OPENTHREAD_EVENT_SET_DNS_SERVER, /*!< OpenThread stack set DNS server >*/
} esp_openthread_event_t;
/**

5
components/openthread/port/esp_openthread.cpp
View File

@ -8,6 +8,7 @@
#include "esp_check.h"
#include "esp_openthread_border_router.h"
#include "esp_openthread_common_macro.h"
#include "esp_openthread_dns64.h"
#include "esp_openthread_lock.h"
#include "esp_openthread_platform.h"
#include "esp_openthread_task_queue.h"
@ -25,6 +26,10 @@ esp_err_t esp_openthread_init(const esp_openthread_platform_config_t *config)
esp_openthread_lock_acquire(portMAX_DELAY);
ESP_RETURN_ON_FALSE(otInstanceInitSingle() != NULL, ESP_FAIL, OT_PLAT_LOG_TAG,
"Failed to initialize OpenThread instance");
#if CONFIG_OPENTHREAD_DNS64_CLIENT
ESP_RETURN_ON_ERROR(esp_openthread_dns64_client_init(), OT_PLAT_LOG_TAG,
"Failed to initialize OpenThread dns64 client");
#endif
esp_openthread_lock_release();
return ESP_OK;

46
components/openthread/port/esp_openthread_dns64.c
View File

@ -1,18 +1,62 @@
/*
* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "esp_openthread_dns64.h"
#include "esp_check.h"
#include "esp_event.h"
#include "esp_log.h"
#include "openthread/instance.h"
#include "openthread/netdata.h"
#include "lwip_default_hooks.h"
#include "lwip/api.h"
#include "lwip/dns.h"
#define TAG "OT_DNS64"
// The network data change callback sets the dns server address of index 0, while the CLI sets the dns server address of index 1.
#define OPENTHREAD_DNS_SERVER_INDEX 0
static void esp_openthread_netdata_change_callback(otChangedFlags changed_flags, void *ctx)
{
if (OT_CHANGED_THREAD_NETDATA & changed_flags) {
ip_addr_t dns_server_addr = *IP_ADDR_ANY;
if (esp_openthread_get_nat64_prefix(&dns_server_addr.u_addr.ip6) == ESP_OK) {
dns_server_addr.type = IPADDR_TYPE_V6;
dns_server_addr.u_addr.ip6.addr[3] = ipaddr_addr(CONFIG_OPENTHREAD_DNS_SERVER_ADDR);
const ip_addr_t *dnsserver = dns_getserver(OPENTHREAD_DNS_SERVER_INDEX);
if (memcmp(dnsserver, &dns_server_addr, sizeof(ip_addr_t)) != 0) {
ESP_LOGI(TAG, "Set dns server address: %s", ipaddr_ntoa(&dns_server_addr));
dns_setserver(OPENTHREAD_DNS_SERVER_INDEX, &dns_server_addr);
if (esp_event_post(OPENTHREAD_EVENT, OPENTHREAD_EVENT_SET_DNS_SERVER, NULL, 0, 0) != ESP_OK) {
ESP_LOGE(TAG, "Failed to post OpenThread set DNS server event");
}
}
}
}
}
esp_err_t esp_openthread_dns64_client_init(void)
{
otInstance *instance = esp_openthread_get_instance();
ESP_RETURN_ON_FALSE(otSetStateChangedCallback(instance, esp_openthread_netdata_change_callback, NULL) ==
OT_ERROR_NONE,
ESP_FAIL, TAG, "Failed to install network data change callback");
dns_setserver(OPENTHREAD_DNS_SERVER_INDEX, NULL);
return ESP_OK;
}
esp_err_t esp_openthread_get_dnsserver_addr(ip6_addr_t *dnsserver_addr)
{
const ip_addr_t *dnsserver = dns_getserver(OPENTHREAD_DNS_SERVER_INDEX);
ESP_RETURN_ON_FALSE(dnsserver_addr, ESP_ERR_INVALID_ARG, TAG, "dnsserver_addr cannot be NULL");
ESP_RETURN_ON_FALSE(!ip_addr_isany(dnsserver), ESP_ERR_INVALID_STATE, TAG,
"DNS server address is not set");
memcpy(dnsserver_addr, &dnsserver->u_addr.ip6, sizeof(ip6_addr_t));
return ESP_OK;
}
esp_err_t esp_openthread_get_nat64_prefix(ip6_addr_t *nat64_prefix)
{