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/*
// Copyright (c) 2018 Intel Corporation
//
// 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 "channel_layer.hpp"
#include "ipmid/api-types.hpp"
#include <boost/interprocess/sync/file_lock.hpp>
#include <boost/interprocess/sync/named_recursive_mutex.hpp>
#include <cstdint>
#include <ctime>
#include <nlohmann/json.hpp>
#include <sdbusplus/bus.hpp>
#include <variant>
namespace ipmi
{
using Json = nlohmann::json;
using DbusVariant = std::variant<std::vector<std::string>, std::string, bool>;
using DbusChObjProperties = std::vector<std::pair<std::string, DbusVariant>>;
static constexpr const char* ipmiChannelMutex = "ipmi_channel_mutex";
static constexpr const char* ipmiChMutexCleanupLockFile =
"/var/lib/ipmi/ipmi_channel_mutex_cleanup";
/** @struct ChannelAccessData
*
* Structure to store both non-volatile and volatile channel access information
* as used by IPMI specification (refer spec sec 22.22 to 22.24)
*/
struct ChannelAccessData
{
ChannelAccess chNonVolatileData;
ChannelAccess chVolatileData;
};
/** @struct ChannelProperties
*
* Structure for channel information - base structure to get all information
* about the channel.(refer spec sec 22.22 to 22.24)
*/
struct ChannelProperties
{
std::string chName;
uint8_t chID;
bool isChValid;
uint8_t activeSessCount;
ChannelInfo chInfo;
ChannelAccessData chAccess;
size_t maxTransferSize;
};
class ChannelConfig;
ChannelConfig& getChannelConfigObject();
class ChannelConfig
{
public:
ChannelConfig(const ChannelConfig&) = delete;
ChannelConfig& operator=(const ChannelConfig&) = delete;
ChannelConfig(ChannelConfig&&) = delete;
ChannelConfig& operator=(ChannelConfig&&) = delete;
~ChannelConfig();
ChannelConfig();
/** @brief determines valid channel
*
* @param[in] chNum - channel number
*
* @return true if valid, false otherwise
*/
bool isValidChannel(const uint8_t chNum);
/** @brief determines valid authentication type
*
* @param[in] chNum - channel number
* @param[in] authType - authentication type
*
* @return true if valid, false otherwise
*/
bool isValidAuthType(const uint8_t chNum, const EAuthType& authType);
/** @brief function to get channel name from channel number
*
* @param[in] chNum - channel number index
*
* @return network channel interface name
*/
std::string getChannelName(const uint8_t chNum);
/** @brief function to get channel number from channel name
*
* @param[in] chName - channel name
*
* @return network channel interface number
*/
uint8_t getChannelByName(const std::string& chName)
{
return convertToChannelNumberFromChannelName(chName);
}
/** @brief determines supported session type of a channel
*
* @param[in] chNum - channel number
*
* @return EChannelSessSupported - supported session type
*/
EChannelSessSupported getChannelSessionSupport(const uint8_t chNum);
/** @brief determines number of active sessions on a channel
*
* @param[in] chNum - channel number
*
* @return numer of active sessions
*/
int getChannelActiveSessions(const uint8_t chNum);
/** @brief determines maximum transfer size for a channel
*
* @param[in] chNum - channel number
*
* @return maximum bytes that can be transferred on this channel
*/
size_t getChannelMaxTransferSize(uint8_t chNum);
/** @brief provides channel info details
*
* @param[in] chNum - channel number
* @param[out] chInfo - channel info details
*
* @return ccSuccess for success, others for failure.
*/
Cc getChannelInfo(const uint8_t chNum, ChannelInfo& chInfo);
/** @brief provides channel access data
*
* @param[in] chNum - channel number
* @param[out] chAccessData - channel access data
*
* @return ccSuccess for success, others for failure.
*/
Cc getChannelAccessData(const uint8_t chNum, ChannelAccess& chAccessData);
/** @brief to set channel access data
*
* @param[in] chNum - channel number
* @param[in] chAccessData - channel access data
* @param[in] setFlag - flag to indicate updatable fields
*
* @return ccSuccess for success, others for failure.
*/
Cc setChannelAccessData(const uint8_t chNum,
const ChannelAccess& chAccessData,
const uint8_t setFlag);
/** @brief to get channel access data persistent data
*
* @param[in] chNum - channel number
* @param[out] chAccessData - channel access data
*
* @return ccSuccess for success, others for failure.
*/
Cc getChannelAccessPersistData(const uint8_t chNum,
ChannelAccess& chAccessData);
/** @brief to set channel access data persistent data
*
* @param[in] chNum - channel number
* @param[in] chAccessData - channel access data
* @param[in] setFlag - flag to indicate updatable fields
*
* @return ccSuccess for success, others for failure.
*/
Cc setChannelAccessPersistData(const uint8_t chNum,
const ChannelAccess& chAccessData,
const uint8_t setFlag);
/** @brief provides supported authentication type for the channel
*
* @param[in] chNum - channel number
* @param[out] authTypeSupported - supported authentication type
*
* @return ccSuccess for success, others for failure.
*/
Cc getChannelAuthTypeSupported(const uint8_t chNum,
uint8_t& authTypeSupported);
/** @brief provides enabled authentication type for the channel
*
* @param[in] chNum - channel number
* @param[in] priv - privilege
* @param[out] authType - enabled authentication type
*
* @return ccSuccess for success, others for failure.
*/
Cc getChannelEnabledAuthType(const uint8_t chNum, const uint8_t priv,
EAuthType& authType);
/** @brief conver to channel privilege from system privilege
*
* @param[in] value - privilege value
*
* @return Channel privilege
*/
CommandPrivilege convertToPrivLimitIndex(const std::string& value);
/** @brief function to write persistent channel configuration to config file
*
* @return 0 for success, -errno for failure.
*/
int writeChannelPersistData();
/** @brief function to write volatile channel configuration to config file
*
* @return 0 for success, -errno for failure.
*/
int writeChannelVolatileData();
private:
uint32_t signalFlag = 0;
std::unique_ptr<boost::interprocess::named_recursive_mutex> channelMutex{
nullptr};
std::array<ChannelProperties, maxIpmiChannels> channelData;
std::time_t nvFileLastUpdatedTime;
std::time_t voltFileLastUpdatedTime;
boost::interprocess::file_lock mutexCleanupLock;
sdbusplus::bus::bus bus;
bool signalHndlrObjectState = false;
boost::interprocess::file_lock sigHndlrLock;
/** @brief function to initialize persistent channel configuration
*
*/
void initChannelPersistData();
/** @brief function to set default channel configuration based on channel
* number
*
* @param[in] chNum - channel number
* @param[in] chName - channel name
*/
void setDefaultChannelConfig(const uint8_t chNum,
const std::string& chName);
/** @brief function to load all channel configuration
*
* @return 0 for success, -errno for failure.
*/
int loadChannelConfig();
/** @brief function to read persistent channel data
*
* @return 0 for success, -errno for failure.
*/
int readChannelPersistData();
/** @brief function to read volatile channel data
*
* @return 0 for success, -errno for failure.
*/
int readChannelVolatileData();
/** @brief function to check and reload persistent channel data
*
* @return 0 for success, -errno for failure.
*/
int checkAndReloadNVData();
/** @brief function to check and reload volatile channel data
*
* @return 0 for success, -errno for failure.
*/
int checkAndReloadVolatileData();
/** @brief function to sync channel privilege with system network channel
* privilege
*
* @return 0 for success, -errno for failure.
*/
int syncNetworkChannelConfig();
/** @brief function to set D-Bus property value
*
* @param[in] service - service name
* @param[in] objPath - object path
* @param[in] interface - interface
* @param[in] property - property name
* @param[in] value - property value
*
* @return 0 for success, -errno for failure.
*/
int setDbusProperty(const std::string& service, const std::string& objPath,
const std::string& interface,
const std::string& property, const DbusVariant& value);
/** @brief function to get D-Bus property value
*
* @param[in] service - service name
* @param[in] objPath - object path
* @param[in] interface - interface
* @param[in] property - property name
* @param[out] value - property value
*
* @return 0 for success, -errno for failure.
*/
int getDbusProperty(const std::string& service, const std::string& objPath,
const std::string& interface,
const std::string& property, DbusVariant& value);
/** @brief function to read json config file
*
* @param[in] configFile - configuration file name
*
* @return Json object
*/
Json readJsonFile(const std::string& configFile);
/** @brief function to write json config file
*
* @param[in] configFile - configuration file name
* @param[in] jsonData - json object
*
* @return 0 for success, -errno for failure.
*/
int writeJsonFile(const std::string& configFile, const Json& jsonData);
/** @brief function to convert system access mode to Channel access mode
* type
*
* @param[in] mode - access mode in string
*
* @return Channel access mode.
*/
EChannelAccessMode convertToAccessModeIndex(const std::string& mode);
/** @brief function to convert access mode value to string
*
* @param[in] value - acess mode value
*
* @return access mode in string
*/
std::string convertToAccessModeString(const uint8_t value);
/** @brief function to convert privilege value to string
*
* @param[in] value - privilege value
*
* @return privilege in string
*/
std::string convertToPrivLimitString(const uint8_t value);
/** @brief function to convert session support string to value type
*
* @param[in] value - session support type in string
*
* @return support session type
*/
EChannelSessSupported
convertToSessionSupportIndex(const std::string& value);
/** @brief function to convert medium type string to value type
*
* @param[in] value - medium type in string
*
* @return channel medium type
*/
EChannelMediumType convertToMediumTypeIndex(const std::string& value);
/** @brief function to convert protocol type string to value type
*
* @param[in] value - protocol type in string
*
* @return channel protocol type
*/
EChannelProtocolType convertToProtocolTypeIndex(const std::string& value);
/** @brief function to convert channel name to the IPMI channel number.
*
* @param[in] chName - the channel name defined in the JSON input file
* (i.e. LAN1)
*
* @return IPMI channel number
*/
int convertToChannelNumberFromChannelName(const std::string& chName);
/** @brief function to handle Channel access property update through the
* D-Bus handler.
*
* @param[in] path - D-Bus path to the network element (i.e. eth0)
* @param[in] chProperties - D-Bus channel properties
*/
void processChAccessPropChange(const std::string& path,
const DbusChObjProperties& chProperties);
/** @brief function to retrieve last modification time for the named file
*
* @param[in] fileName - the name of the file for which to acquire
* timestamp data
*
* @return time the file was last modified
*/
std::time_t getUpdatedFileTime(const std::string& fileName);
/** @brief function to convert the DBus path to a network channel name
*
* @param[in] path - The DBus path to the device
*
* @return network channel name (i.e. eth0)
*/
std::string getChannelNameFromPath(const std::string& path);
};
} // namespace ipmi