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fix(lwip): improve lost ip event process

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wangtao@espressif.com
2026-05-07 20:22:29 +08:00
parent cea56b7dd8
commit d39df82a48
1 changed files with 12 additions and 7 deletions
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components/esp_netif/lwip/esp_netif_lwip.c
+12 -7
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@@ -1406,7 +1406,7 @@ esp_err_t esp_netif_receive(esp_netif_t *esp_netif, void *buffer, size_t len, vo
}
#if CONFIG_LWIP_IPV4
static esp_err_t esp_netif_start_ip_lost_timer(esp_netif_t *esp_netif);
static esp_err_t esp_netif_start_ip_lost_timer(esp_netif_t *esp_netif, bool renew);
//
// DHCP:
@@ -1469,7 +1469,7 @@ static void esp_netif_internal_dhcpc_cb(struct netif *netif)
}
} else {
if (!ip4_addr_cmp(&ip_info->ip, IP4_ADDR_ANY4)) {
esp_netif_start_ip_lost_timer(esp_netif);
esp_netif_start_ip_lost_timer(esp_netif, false);
if (esp_netif->flags & ESP_NETIF_DHCP_CLIENT && esp_netif->dhcpc_status == ESP_NETIF_DHCP_STARTED) {
// Only for active DHCP client (in case of static IP, we keep the last configure value in ip_info)
// synchronize lwip netif with esp_netif setting ip_info to 0,
@@ -1519,7 +1519,7 @@ static void esp_netif_ip_lost_timer(void *arg)
}
}
static esp_err_t esp_netif_start_ip_lost_timer(esp_netif_t *esp_netif)
static esp_err_t esp_netif_start_ip_lost_timer(esp_netif_t *esp_netif, bool renew)
{
esp_netif_ip_info_t *ip_info_old = esp_netif->ip_info;
struct netif *netif = esp_netif->lwip_netif;
@@ -1528,7 +1528,12 @@ static esp_err_t esp_netif_start_ip_lost_timer(esp_netif_t *esp_netif)
if ( netif && (CONFIG_ESP_NETIF_IP_LOST_TIMER_INTERVAL > 0)) {
if (esp_netif->timer_running) {
sys_untimeout(esp_netif_ip_lost_timer, (void *)esp_netif);
if (renew) {
sys_untimeout(esp_netif_ip_lost_timer, (void *)esp_netif);
} else{
ESP_LOGD(TAG, "if%p start ip lost tmr: already started", esp_netif);
return ESP_OK;
}
}
esp_netif->timer_running = true;
sys_timeout(CONFIG_ESP_NETIF_IP_LOST_TIMER_INTERVAL * 1000, esp_netif_ip_lost_timer, (void *)esp_netif);
@@ -1559,7 +1564,7 @@ static esp_err_t esp_netif_dhcpc_stop_api(esp_netif_api_msg_t *msg)
if (p_netif != NULL) {
dhcp_stop(p_netif);
esp_netif_reset_ip_info(esp_netif);
esp_netif_start_ip_lost_timer(esp_netif);
esp_netif_start_ip_lost_timer(esp_netif, false);
} else {
ESP_LOGD(TAG, "dhcp client if not ready");
return ESP_ERR_ESP_NETIF_IF_NOT_READY;
@@ -1622,7 +1627,7 @@ static esp_err_t esp_netif_dhcpc_start_api(esp_netif_api_msg_t *msg)
ip_addr_set_zero(&p_netif->ip_addr);
ip_addr_set_zero(&p_netif->netmask);
ip_addr_set_zero(&p_netif->gw);
esp_netif_start_ip_lost_timer(esp_netif);
esp_netif_start_ip_lost_timer(esp_netif, true);
} else {
ESP_LOGD(TAG, "dhcp client re init");
esp_netif->dhcpc_status = ESP_NETIF_DHCP_INIT;
@@ -1873,7 +1878,7 @@ static esp_err_t esp_netif_down_api(esp_netif_api_msg_t *msg)
if (esp_netif->flags & ESP_NETIF_DHCP_CLIENT) {
#if CONFIG_LWIP_IPV4
esp_netif_start_ip_lost_timer(esp_netif);
esp_netif_start_ip_lost_timer(esp_netif, false);
#endif
}