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lwip/esp_napt: Added api to enable/disable napt based on esp_netif.

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This commit is contained in:
Abhik Roy 2023-01-19 14:50:00 +05:30
parent b6fda9723e
commit 8e71e96603
2 changed files with 85 additions and 0 deletions
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28
components/esp_netif/include/esp_netif.h
View File

@ -523,6 +523,34 @@ int esp_netif_get_netif_impl_index(esp_netif_t *esp_netif);
*/
esp_err_t esp_netif_get_netif_impl_name(esp_netif_t *esp_netif, char* name);
/**
* @brief Enable NAPT on an interface
*
* @note Enable operation can be performed only on one interface at a time.
* NAPT cannot be enabled on multiple interfaces according to this implementation.
*
* @param[in] esp_netif Handle to esp-netif instance
*
* @return
* - ESP_OK
* - ESP_FAIL
* - ESP_ERR_NOT_SUPPORTED
*/
esp_err_t esp_netif_napt_enable(esp_netif_t *esp_netif);
/**
* @brief Disable NAPT on an interface.
*
* @param[in] esp_netif Handle to esp-netif instance
*
* @return
* - ESP_OK
* - ESP_FAIL
* - ESP_ERR_NOT_SUPPORTED
*/
esp_err_t esp_netif_napt_disable(esp_netif_t *esp_netif);
/**
* @}
*/

57
components/esp_netif/lwip/esp_netif_lwip.c
View File

@ -48,6 +48,10 @@
#include "netif/dhcp_state.h"
#include "esp_event.h"
#include "esp_log.h"
#if IP_NAPT
#include "lwip/lwip_napt.h"
#endif
//
// This is the main module implementing lwip interaction with esp-netif
@ -2380,6 +2384,59 @@ esp_err_t esp_netif_get_netif_impl_name(esp_netif_t *esp_netif, char* name)
return esp_netif_lwip_ipc_call(esp_netif_get_netif_impl_name_api, esp_netif, name);
}
esp_err_t esp_netif_napt_enable(esp_netif_t *esp_netif)
{
#if !IP_NAPT
return ESP_ERR_NOT_SUPPORTED;
#else
ESP_LOGD(TAG, "%s esp_netif:%p", __func__, esp_netif);
/* Check if the interface is up */
if (!netif_is_up(esp_netif->lwip_netif)) {
return ESP_FAIL;
}
esp_netif_list_lock();
/* Disable napt on all other interface */
esp_netif_t *netif = esp_netif_next_unsafe(NULL);
while (netif) {
if (netif != esp_netif) {
ip_napt_enable_netif(netif->lwip_netif, 0); // Fails only if netif is down
ESP_LOGW(TAG, "napt disabled on esp_netif:%p", esp_netif);
}
netif = esp_netif_next_unsafe(netif);
}
int ret = ip_napt_enable_netif(esp_netif->lwip_netif, 1);
esp_netif_list_unlock();
if (ret == 0) {
return ESP_FAIL;
}
return ESP_OK;
#endif /* IP_NAPT */
}
esp_err_t esp_netif_napt_disable(esp_netif_t *esp_netif)
{
#if !IP_NAPT
return ESP_ERR_NOT_SUPPORTED;
#else
/* Check if the interface is up */
if (!netif_is_up(esp_netif->lwip_netif)) {
return ESP_FAIL;
}
esp_netif_list_lock();
ip_napt_enable_netif(esp_netif->lwip_netif, 0); // Fails only if netif is down
ESP_LOGD(TAG, "napt disabled on esp_netif:%p", esp_netif);
esp_netif_list_unlock();
return ESP_OK;
#endif /* IP_NAPT */
}
#if MIB2_STATS
static esp_err_t esp_netif_set_link_speed_api(esp_netif_api_msg_t *msg)
{