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/**
*
* Copyright (c) 2021 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.
*/
/****************************************************************************
* @file
* @brief Routines for the Content Launch plugin, the
*server implementation of the Content Launch cluster.
*******************************************************************************
******************************************************************************/
#include <app-common/zap-generated/attributes/Accessors.h>
#include <app-common/zap-generated/cluster-objects.h>
#include <app/CommandHandler.h>
#include <app/ConcreteCommandPath.h>
#include <app/server/CommissioningWindowManager.h>
#include <app/server/Server.h>
#include <app/util/af.h>
#include <app/util/attribute-storage.h>
#include <lib/support/Span.h>
#include <lib/support/logging/CHIPLogging.h>
#include <platform/CHIPDeviceConfig.h>
#include <platform/ConfigurationManager.h>
#include <platform/DeviceControlServer.h>
#include <trace/trace.h>
using namespace chip;
using namespace chip::app;
using namespace chip::app::Clusters;
using namespace chip::app::Clusters::GeneralCommissioning;
using namespace chip::app::Clusters::GeneralCommissioning::Attributes;
using namespace chip::DeviceLayer;
using Transport::SecureSession;
using Transport::Session;
#define CheckSuccess(expr, code) \
do \
{ \
if (!::chip::ChipError::IsSuccess(expr)) \
{ \
CHIP_ERROR statusErr = commandObj->AddStatus(commandPath, Protocols::InteractionModel::Status::code); \
if (statusErr != CHIP_NO_ERROR) \
{ \
ChipLogError(Zcl, "%s: %" CHIP_ERROR_FORMAT, #expr, statusErr.Format()); \
} \
return true; \
} \
} while (false)
namespace {
class GeneralCommissioningAttrAccess : public AttributeAccessInterface
{
public:
// Register for the GeneralCommissioning cluster on all endpoints.
GeneralCommissioningAttrAccess() : AttributeAccessInterface(Optional<EndpointId>::Missing(), GeneralCommissioning::Id) {}
CHIP_ERROR Read(const ConcreteReadAttributePath & aPath, AttributeValueEncoder & aEncoder) override;
private:
CHIP_ERROR ReadIfSupported(CHIP_ERROR (ConfigurationManager::*getter)(uint8_t &), AttributeValueEncoder & aEncoder);
CHIP_ERROR ReadBasicCommissioningInfo(AttributeValueEncoder & aEncoder);
CHIP_ERROR ReadSupportsConcurrentConnection(AttributeValueEncoder & aEncoder);
};
GeneralCommissioningAttrAccess gAttrAccess;
CHIP_ERROR GeneralCommissioningAttrAccess::Read(const ConcreteReadAttributePath & aPath, AttributeValueEncoder & aEncoder)
{
if (aPath.mClusterId != GeneralCommissioning::Id)
{
// We shouldn't have been called at all.
return CHIP_ERROR_INVALID_ARGUMENT;
}
switch (aPath.mAttributeId)
{
case RegulatoryConfig::Id: {
return ReadIfSupported(&ConfigurationManager::GetRegulatoryLocation, aEncoder);
}
case LocationCapability::Id: {
return ReadIfSupported(&ConfigurationManager::GetLocationCapability, aEncoder);
}
case BasicCommissioningInfo::Id: {
return ReadBasicCommissioningInfo(aEncoder);
}
case SupportsConcurrentConnection::Id: {
return ReadSupportsConcurrentConnection(aEncoder);
}
default: {
break;
}
}
return CHIP_NO_ERROR;
}
CHIP_ERROR GeneralCommissioningAttrAccess::ReadIfSupported(CHIP_ERROR (ConfigurationManager::*getter)(uint8_t &),
AttributeValueEncoder & aEncoder)
{
uint8_t data;
CHIP_ERROR err = (DeviceLayer::ConfigurationMgr().*getter)(data);
if (err == CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE)
{
data = 0;
}
else if (err != CHIP_NO_ERROR)
{
return err;
}
return aEncoder.Encode(data);
}
CHIP_ERROR GeneralCommissioningAttrAccess::ReadBasicCommissioningInfo(AttributeValueEncoder & aEncoder)
{
BasicCommissioningInfo::TypeInfo::Type basicCommissioningInfo;
// TODO: The commissioner might use the critical parameters in BasicCommissioningInfo to initialize
// the CommissioningParameters at the beginning of commissioning flow.
basicCommissioningInfo.failSafeExpiryLengthSeconds = CHIP_DEVICE_CONFIG_FAILSAFE_EXPIRY_LENGTH_SEC;
basicCommissioningInfo.maxCumulativeFailsafeSeconds = CHIP_DEVICE_CONFIG_MAX_CUMULATIVE_FAILSAFE_SEC;
static_assert(CHIP_DEVICE_CONFIG_MAX_CUMULATIVE_FAILSAFE_SEC >= CHIP_DEVICE_CONFIG_FAILSAFE_EXPIRY_LENGTH_SEC,
"Max cumulative failsafe seconds must be larger than failsafe expiry length seconds");
return aEncoder.Encode(basicCommissioningInfo);
}
CHIP_ERROR GeneralCommissioningAttrAccess::ReadSupportsConcurrentConnection(AttributeValueEncoder & aEncoder)
{
SupportsConcurrentConnection::TypeInfo::Type supportsConcurrentConnection;
// TODO: The commissioner might use the critical parameters in BasicCommissioningInfo to initialize
// the CommissioningParameters at the beginning of commissioning flow.
supportsConcurrentConnection = (CHIP_DEVICE_CONFIG_SUPPORTS_CONCURRENT_CONNECTION) != 0;
return aEncoder.Encode(supportsConcurrentConnection);
}
} // anonymous namespace
bool emberAfGeneralCommissioningClusterArmFailSafeCallback(app::CommandHandler * commandObj,
const app::ConcreteCommandPath & commandPath,
const Commands::ArmFailSafe::DecodableType & commandData)
{
MATTER_TRACE_EVENT_SCOPE("ArmFailSafe", "GeneralCommissioning");
auto & failSafeContext = Server::GetInstance().GetFailSafeContext();
Commands::ArmFailSafeResponse::Type response;
ChipLogProgress(FailSafe, "GeneralCommissioning: Received ArmFailSafe (%us)",
static_cast<unsigned>(commandData.expiryLengthSeconds));
/*
* If the fail-safe timer is not fully disarmed, don't allow arming a new fail-safe.
* If the fail-safe timer was not currently armed, then the fail-safe timer SHALL be armed.
* If the fail-safe timer was currently armed, and current accessing fabric matches the fail-safe
* context’s Fabric Index, then the fail-safe timer SHALL be re-armed.
*/
FabricIndex accessingFabricIndex = commandObj->GetAccessingFabricIndex();
// We do not allow CASE connections to arm the failsafe for the first time while the commissioning window is open in order
// to allow commissioners the opportunity to obtain this failsafe for the purpose of commissioning
if (!failSafeContext.IsFailSafeBusy() &&
(!failSafeContext.IsFailSafeArmed() || failSafeContext.MatchesFabricIndex(accessingFabricIndex)))
{
// We do not allow CASE connections to arm the failsafe for the first time while the commissioning window is open in order
// to allow commissioners the opportunity to obtain this failsafe for the purpose of commissioning
if (!failSafeContext.IsFailSafeArmed() &&
Server::GetInstance().GetCommissioningWindowManager().IsCommissioningWindowOpen() &&
commandObj->GetSubjectDescriptor().authMode == Access::AuthMode::kCase)
{
response.errorCode = CommissioningError::kBusyWithOtherAdmin;
commandObj->AddResponse(commandPath, response);
}
else if (commandData.expiryLengthSeconds == 0)
{
// Force the timer to expire immediately.
failSafeContext.ForceFailSafeTimerExpiry();
// Don't set the breadcrumb, since expiring the failsafe should
// reset it anyway.
response.errorCode = CommissioningError::kOk;
commandObj->AddResponse(commandPath, response);
}
else
{
CheckSuccess(
failSafeContext.ArmFailSafe(accessingFabricIndex, System::Clock::Seconds16(commandData.expiryLengthSeconds)),
Failure);
Breadcrumb::Set(commandPath.mEndpointId, commandData.breadcrumb);
response.errorCode = CommissioningError::kOk;
commandObj->AddResponse(commandPath, response);
}
}
else
{
response.errorCode = CommissioningError::kBusyWithOtherAdmin;
commandObj->AddResponse(commandPath, response);
}
return true;
}
bool emberAfGeneralCommissioningClusterCommissioningCompleteCallback(
app::CommandHandler * commandObj, const app::ConcreteCommandPath & commandPath,
const Commands::CommissioningComplete::DecodableType & commandData)
{
MATTER_TRACE_EVENT_SCOPE("CommissioningComplete", "GeneralCommissioning");
DeviceControlServer * devCtrl = &DeviceLayer::DeviceControlServer::DeviceControlSvr();
auto & failSafe = Server::GetInstance().GetFailSafeContext();
auto & fabricTable = Server::GetInstance().GetFabricTable();
ChipLogProgress(FailSafe, "GeneralCommissioning: Received CommissioningComplete");
Commands::CommissioningCompleteResponse::Type response;
if (!failSafe.IsFailSafeArmed())
{
response.errorCode = CommissioningError::kNoFailSafe;
}
else
{
SessionHandle handle = commandObj->GetExchangeContext()->GetSessionHandle();
// If not a CASE session, or the fabric does not match the fail-safe,
// error out.
if (handle->GetSessionType() != Session::SessionType::kSecure ||
handle->AsSecureSession()->GetSecureSessionType() != SecureSession::Type::kCASE ||
!failSafe.MatchesFabricIndex(commandObj->GetAccessingFabricIndex()))
{
response.errorCode = CommissioningError::kInvalidAuthentication;
ChipLogError(FailSafe, "GeneralCommissioning: Got commissioning complete in invalid security context");
}
else
{
if (failSafe.NocCommandHasBeenInvoked())
{
CHIP_ERROR err = fabricTable.CommitPendingFabricData();
if (err != CHIP_NO_ERROR)
{
// No need to revert on error: CommitPendingFabricData always reverts if not fully successful.
ChipLogError(FailSafe, "GeneralCommissioning: Failed to commit pending fabric data: %" CHIP_ERROR_FORMAT,
err.Format());
}
else
{
ChipLogProgress(FailSafe, "GeneralCommissioning: Successfully commited pending fabric data");
}
CheckSuccess(err, Failure);
}
/*
* Pass fabric of commissioner to DeviceControlSvr.
* This allows device to send messages back to commissioner.
* Once bindings are implemented, this may no longer be needed.
*/
failSafe.DisarmFailSafe();
CheckSuccess(
devCtrl->PostCommissioningCompleteEvent(handle->AsSecureSession()->GetPeerNodeId(), handle->GetFabricIndex()),
Failure);
Breadcrumb::Set(commandPath.mEndpointId, 0);
response.errorCode = CommissioningError::kOk;
}
}
commandObj->AddResponse(commandPath, response);
return true;
}
bool emberAfGeneralCommissioningClusterSetRegulatoryConfigCallback(app::CommandHandler * commandObj,
const app::ConcreteCommandPath & commandPath,
const Commands::SetRegulatoryConfig::DecodableType & commandData)
{
MATTER_TRACE_EVENT_SCOPE("SetRegulatoryConfig", "GeneralCommissioning");
DeviceControlServer * server = &DeviceLayer::DeviceControlServer::DeviceControlSvr();
Commands::SetRegulatoryConfigResponse::Type response;
if (commandData.newRegulatoryConfig > RegulatoryLocationType::kIndoorOutdoor)
{
response.errorCode = CommissioningError::kValueOutsideRange;
response.debugText = commandData.countryCode;
}
else
{
uint8_t locationCapability;
uint8_t location = to_underlying(commandData.newRegulatoryConfig);
CheckSuccess(ConfigurationMgr().GetLocationCapability(locationCapability), Failure);
// If the LocationCapability attribute is not Indoor/Outdoor and the NewRegulatoryConfig value received does not match
// either the Indoor or Outdoor fixed value in LocationCapability.
if ((locationCapability != to_underlying(RegulatoryLocationType::kIndoorOutdoor)) && (location != locationCapability))
{
response.errorCode = CommissioningError::kValueOutsideRange;
response.debugText = commandData.countryCode;
}
else
{
CheckSuccess(server->SetRegulatoryConfig(location, commandData.countryCode), Failure);
Breadcrumb::Set(commandPath.mEndpointId, commandData.breadcrumb);
response.errorCode = CommissioningError::kOk;
}
}
commandObj->AddResponse(commandPath, response);
return true;
}
namespace {
void OnPlatformEventHandler(const DeviceLayer::ChipDeviceEvent * event, intptr_t arg)
{
if (event->Type == DeviceLayer::DeviceEventType::kFailSafeTimerExpired)
{
// Spec says to reset Breadcrumb attribute to 0.
Breadcrumb::Set(0, 0);
}
}
} // anonymous namespace
void MatterGeneralCommissioningPluginServerInitCallback()
{
Breadcrumb::Set(0, 0);
registerAttributeAccessOverride(&gAttrAccess);
DeviceLayer::PlatformMgrImpl().AddEventHandler(OnPlatformEventHandler);
}
namespace chip {
namespace app {
namespace Clusters {
namespace GeneralCommissioning {
void SetBreadcrumb(Attributes::Breadcrumb::TypeInfo::Type breadcrumb)
{
Breadcrumb::Set(0, breadcrumb);
}
} // namespace GeneralCommissioning
} // namespace Clusters
} // namespace app
} // namespace chip