blob: 33496f0ed9af473068ebad91adba635a8a91ef01 [file] [log] [blame]
/*
*
* Copyright (c) 2022 Project CHIP Authors
*
* 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.
*/
#pragma once
#include <inet/IPAddress.h>
#include <platform/NetworkCommissioning.h>
namespace chip {
namespace DeviceLayer {
namespace NetworkCommissioning {
#if CHIP_DEVICE_CONFIG_ENABLE_WIFI
#include <netsocket/WiFiInterface.h>
namespace {
inline constexpr uint8_t kMaxWiFiNetworks = 1;
inline constexpr uint8_t kWiFiScanNetworksTimeOutSeconds = 10;
inline constexpr uint8_t kWiFiConnectNetworkTimeoutSeconds = 20;
} // namespace
class MbedScanResponseIterator : public Iterator<WiFiScanResponse>
{
public:
MbedScanResponseIterator(const size_t size, const WiFiAccessPoint * scanResults) : mSize(size), mScanResults(scanResults) {}
size_t Count() override { return mSize; }
bool Next(WiFiScanResponse & item) override
{
if (mIternum >= mSize)
{
return false;
}
item.security.SetRaw(mScanResults[mIternum].get_security());
static_assert(chip::DeviceLayer::Internal::kMaxWiFiSSIDLength <= UINT8_MAX, "Our length won't fit in ssidLen");
item.ssidLen = static_cast<uint8_t>(strnlen(reinterpret_cast<const char *>(mScanResults[mIternum].get_ssid()),
chip::DeviceLayer::Internal::kMaxWiFiSSIDLength));
item.channel = mScanResults[mIternum].get_channel();
item.wiFiBand = chip::DeviceLayer::NetworkCommissioning::WiFiBand::k2g4;
item.rssi = mScanResults[mIternum].get_rssi();
memcpy(item.ssid, mScanResults[mIternum].get_ssid(), item.ssidLen);
memcpy(item.bssid, mScanResults[mIternum].get_bssid(), 6);
mIternum++;
return true;
}
void Release() override {}
private:
const size_t mSize;
const WiFiAccessPoint * mScanResults;
size_t mIternum = 0;
};
class WiFiDriverImpl final : public WiFiDriver
{
public:
class WiFiNetworkIterator final : public NetworkIterator
{
public:
WiFiNetworkIterator(WiFiDriverImpl * aDriver) : mDriver(aDriver) {}
size_t Count() override;
bool Next(Network & item) override;
void Release() override { delete this; }
~WiFiNetworkIterator() = default;
private:
WiFiDriverImpl * mDriver;
bool mExhausted = false;
};
struct WiFiNetwork
{
char ssid[DeviceLayer::Internal::kMaxWiFiSSIDLength];
uint8_t ssidLen = 0;
char credentials[DeviceLayer::Internal::kMaxWiFiKeyLength];
uint8_t credentialsLen = 0;
};
// BaseDriver
NetworkIterator * GetNetworks() override { return new WiFiNetworkIterator(this); }
CHIP_ERROR Init(NetworkStatusChangeCallback * networkStatusChangeCallback) override;
void Shutdown() override;
// WirelessDriver
uint8_t GetMaxNetworks() override { return kMaxWiFiNetworks; }
uint8_t GetScanNetworkTimeoutSeconds() override { return kWiFiScanNetworksTimeOutSeconds; }
uint8_t GetConnectNetworkTimeoutSeconds() override { return kWiFiConnectNetworkTimeoutSeconds; }
CHIP_ERROR CommitConfiguration() override;
CHIP_ERROR RevertConfiguration() override;
Status RemoveNetwork(ByteSpan networkId, MutableCharSpan & outDebugText, uint8_t & outNetworkIndex) override;
Status ReorderNetwork(ByteSpan networkId, uint8_t index, MutableCharSpan & outDebugText) override;
void ConnectNetwork(ByteSpan networkId, ConnectCallback * callback) override;
void DisconnectNetwork(ByteSpan networkId);
// WiFiDriver
Status AddOrUpdateNetwork(ByteSpan ssid, ByteSpan credentials, MutableCharSpan & outDebugText,
uint8_t & outNetworkIndex) override;
void ScanNetworks(ByteSpan ssid, ScanCallback * callback) override;
CHIP_ERROR SetLastDisconnectReason(const ChipDeviceEvent * event);
int32_t GetLastDisconnectReason();
void OnNetworkStatusChange();
static WiFiDriverImpl & GetInstance()
{
static WiFiDriverImpl instance;
return instance;
}
private:
bool NetworkMatch(const WiFiNetwork & network, ByteSpan networkId);
static void OnScanNetwork(intptr_t arg);
void ExecuteScanNetwork(void);
static void OnConnectNetwork(intptr_t arg);
void ExecuteConnectNetwork(void);
static void OnWiFiInterfaceEvent(nsapi_event_t event, intptr_t data);
void ExecuteWiFiInterfaceChange(nsapi_connection_status_t new_status);
void OnNetworkConnected();
void OnNetworkDisconnected();
void OnNetworkConnecting();
chip::DeviceLayer::Internal::WiFiAuthSecurityType NsapiToNetworkSecurity(nsapi_security_t nsapi_security);
WiFiNetwork mSavedNetwork;
WiFiNetwork mStagingNetwork;
ScanCallback * mScanCallback;
ConnectCallback * mConnectCallback;
char mScanSSID[DeviceLayer::Internal::kMaxWiFiSSIDLength];
bool mScanSpecific = false;
WiFiInterface * mWiFiInterface = nullptr;
nsapi_security_t mSecurityType = NSAPI_SECURITY_NONE;
Inet::IPAddress mIp4Address = Inet::IPAddress::Any;
Inet::IPAddress mIp6Address = Inet::IPAddress::Any;
NetworkStatusChangeCallback * mStatusChangeCallback = nullptr;
int32_t mLastDisconnectedReason;
};
#endif // CHIP_DEVICE_CONFIG_ENABLE_WIFI
} // namespace NetworkCommissioning
} // namespace DeviceLayer
} // namespace chip