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[ESP32] Skip the WiFi interface initialization if already done (#29017)
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* [ESP32] Skip the WiFi interface initialization if already done

* Define the default wifi netif keys
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@shubhamdp
shubhamdp authored Sep 2, 2023
1 parent 2df2dd3 commit 88d6366
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Showing 4 changed files with 36 additions and 23 deletions.
23 changes: 13 additions & 10 deletions src/platform/ESP32/ConnectivityManagerImpl_WiFi.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -526,7 +526,8 @@ void ConnectivityManagerImpl::OnWiFiPlatformEvent(const ChipDeviceEvent * event)
break;
case IP_EVENT_GOT_IP6:
ChipLogProgress(DeviceLayer, "IP_EVENT_GOT_IP6");
if (strcmp(esp_netif_get_ifkey(event->Platform.ESPSystemEvent.Data.IpGotIp6.esp_netif), "WIFI_STA_DEF") == 0)
if (strcmp(esp_netif_get_ifkey(event->Platform.ESPSystemEvent.Data.IpGotIp6.esp_netif),
ESP32Utils::kDefaultWiFiStationNetifKey) == 0)
{
OnStationIPv6AddressAvailable(event->Platform.ESPSystemEvent.Data.IpGotIp6);
}
Expand Down Expand Up @@ -670,10 +671,11 @@ void ConnectivityManagerImpl::DriveStationState()
void ConnectivityManagerImpl::OnStationConnected()
{
// Assign an IPv6 link local address to the station interface.
esp_err_t err = esp_netif_create_ip6_linklocal(esp_netif_get_handle_from_ifkey("WIFI_STA_DEF"));
esp_err_t err = esp_netif_create_ip6_linklocal(esp_netif_get_handle_from_ifkey(ESP32Utils::kDefaultWiFiStationNetifKey));
if (err != ESP_OK)
{
ChipLogError(DeviceLayer, "esp_netif_create_ip6_linklocal() failed for WIFI_STA_DEF interface: %s", esp_err_to_name(err));
ChipLogError(DeviceLayer, "esp_netif_create_ip6_linklocal() failed for %s interface, err:%s",
ESP32Utils::kDefaultWiFiStationNetifKey, esp_err_to_name(err));
}
NetworkCommissioning::ESPWiFiDriver::GetInstance().OnConnectWiFiNetwork();
// TODO Invoke WARM to perform actions that occur when the WiFi station interface comes up.
Expand Down Expand Up @@ -907,14 +909,14 @@ void ConnectivityManagerImpl::DriveAPState()

// If AP is active, but the interface doesn't have an IPv6 link-local
// address, assign one now.
if (mWiFiAPState == kWiFiAPState_Active && Internal::ESP32Utils::IsInterfaceUp("WIFI_AP_DEF") &&
!Internal::ESP32Utils::HasIPv6LinkLocalAddress("WIFI_AP_DEF"))
if (mWiFiAPState == kWiFiAPState_Active && ESP32Utils::IsInterfaceUp(ESP32Utils::kDefaultWiFiAPNetifKey) &&
!ESP32Utils::HasIPv6LinkLocalAddress(ESP32Utils::kDefaultWiFiAPNetifKey))
{
esp_err_t error = esp_netif_create_ip6_linklocal(esp_netif_get_handle_from_ifkey("WIFI_AP_DEF"));
esp_err_t error = esp_netif_create_ip6_linklocal(esp_netif_get_handle_from_ifkey(ESP32Utils::kDefaultWiFiAPNetifKey));
if (error != ESP_OK)
{
ChipLogError(DeviceLayer, "esp_netif_create_ip6_linklocal() failed for WIFI_AP_DEF interface: %s",
esp_err_to_name(error));
ChipLogError(DeviceLayer, "esp_netif_create_ip6_linklocal() failed for %s interface, err:%s",
ESP32Utils::kDefaultWiFiAPNetifKey, esp_err_to_name(error));
goto exit;
}
}
Expand Down Expand Up @@ -1002,7 +1004,8 @@ void ConnectivityManagerImpl::UpdateInternetConnectivityState(void)
haveIPv4Conn = true;

esp_netif_ip_info_t ipInfo;
if (esp_netif_get_ip_info(esp_netif_get_handle_from_ifkey("WIFI_STA_DEF"), &ipInfo) == ESP_OK)
if (esp_netif_get_ip_info(esp_netif_get_handle_from_ifkey(ESP32Utils::kDefaultWiFiStationNetifKey), &ipInfo) ==
ESP_OK)
{
char addrStr[INET_ADDRSTRLEN];
// ToDo: change the code to using IPv6 address
Expand Down Expand Up @@ -1105,7 +1108,7 @@ void ConnectivityManagerImpl::OnStationIPv6AddressAvailable(const ip_event_got_i
event.InterfaceIpAddressChanged.Type = InterfaceIpChangeType::kIpV6_Assigned;
PlatformMgr().PostEventOrDie(&event);
#if CONFIG_ENABLE_ROUTE_HOOK
esp_route_hook_init(esp_netif_get_handle_from_ifkey("WIFI_STA_DEF"));
esp_route_hook_init(esp_netif_get_handle_from_ifkey(ESP32Utils::kDefaultWiFiStationNetifKey));
#endif
}

Expand Down
23 changes: 16 additions & 7 deletions src/platform/ESP32/ESP32Utils.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -223,7 +223,7 @@ const char * ESP32Utils::WiFiModeToStr(wifi_mode_t wifiMode)

struct netif * ESP32Utils::GetStationNetif(void)
{
return GetNetif("WIFI_STA_DEF");
return GetNetif(kDefaultWiFiStationNetifKey);
}

CHIP_ERROR ESP32Utils::GetWiFiStationProvision(Internal::DeviceNetworkInfo & netInfo, bool includeCredentials)
Expand Down Expand Up @@ -321,16 +321,25 @@ CHIP_ERROR ESP32Utils::InitWiFiStack(void)
}

#if CHIP_DEVICE_CONFIG_ENABLE_WIFI_AP
if (!esp_netif_create_default_wifi_ap())
// Lets not create a default AP interface if already present
if (!esp_netif_get_handle_from_ifkey(kDefaultWiFiAPNetifKey))
{
ChipLogError(DeviceLayer, "Failed to create the WiFi AP netif");
return CHIP_ERROR_INTERNAL;
if (!esp_netif_create_default_wifi_ap())
{
ChipLogError(DeviceLayer, "Failed to create the WiFi AP netif");
return CHIP_ERROR_INTERNAL;
}
}
#endif // CHIP_DEVICE_CONFIG_ENABLE_WIFI_AP
if (!esp_netif_create_default_wifi_sta())

// Lets not create a default station interface if already present
if (!esp_netif_get_handle_from_ifkey(kDefaultWiFiStationNetifKey))
{
ChipLogError(DeviceLayer, "Failed to create the WiFi STA netif");
return CHIP_ERROR_INTERNAL;
if (!esp_netif_create_default_wifi_sta())
{
ChipLogError(DeviceLayer, "Failed to create the WiFi STA netif");
return CHIP_ERROR_INTERNAL;
}
}

// Initialize the ESP WiFi layer.
Expand Down
3 changes: 3 additions & 0 deletions src/platform/ESP32/ESP32Utils.h
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Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,9 @@ class ESP32Utils
static CHIP_ERROR MapError(esp_err_t error);
static void RegisterESP32ErrorFormatter();
static bool FormatError(char * buf, uint16_t bufSize, CHIP_ERROR err);

static constexpr char kDefaultWiFiStationNetifKey[] = "WIFI_STA_DEF";
static constexpr char kDefaultWiFiAPNetifKey[] = "WIFI_AP_DEF";
};

#define ReturnMappedErrorOnFailure(expr) \
Expand Down
10 changes: 4 additions & 6 deletions src/platform/ESP32/WiFiDnssdImpl.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,7 @@
#include <lib/support/CHIPMem.h>
#include <lib/support/CodeUtils.h>
#include <lib/support/logging/CHIPLogging.h>
#include <platform/ESP32/ESP32Utils.h>

namespace {

Expand Down Expand Up @@ -332,9 +333,8 @@ static CHIP_ERROR OnBrowseDone(BrowseContext * ctx)
if (ctx->mInterfaceId == chip::Inet::InterfaceId::Null())
{
// If the InterfaceId in the context is Null, we will use the Station netif by default.
struct netif * lwip_netif =
reinterpret_cast<struct netif *>(esp_netif_get_netif_impl(esp_netif_get_handle_from_ifkey("WIFI_STA_DEF")));
ctx->mService[servicesIndex].mInterface = chip::Inet::InterfaceId(lwip_netif);
ctx->mService[servicesIndex].mInterface =
Inet::InterfaceId(DeviceLayer::Internal::ESP32Utils::GetStationNetif());
}
else
{
Expand Down Expand Up @@ -419,9 +419,7 @@ static CHIP_ERROR ParseSrvResult(ResolveContext * ctx)
if (ctx->mInterfaceId == chip::Inet::InterfaceId::Null())
{
// If the InterfaceId in the context is Null, we will use the Station netif by default.
struct netif * lwip_netif =
reinterpret_cast<struct netif *>(esp_netif_get_netif_impl(esp_netif_get_handle_from_ifkey("WIFI_STA_DEF")));
ctx->mService->mInterface = chip::Inet::InterfaceId(lwip_netif);
ctx->mService->mInterface = Inet::InterfaceId(DeviceLayer::Internal::ESP32Utils::GetStationNetif());
}
else
{
Expand Down

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