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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.
*/
#include "user_mgmt.hpp"
#include "apphandler.hpp"
#include "channel_layer.hpp"
#include "channel_mgmt.hpp"
#include <security/pam_appl.h>
#include <sys/stat.h>
#include <unistd.h>
#include <boost/interprocess/sync/named_recursive_mutex.hpp>
#include <boost/interprocess/sync/scoped_lock.hpp>
#include <cerrno>
#include <fstream>
#include <ipmid/types.hpp>
#include <nlohmann/json.hpp>
#include <phosphor-logging/elog-errors.hpp>
#include <phosphor-logging/log.hpp>
#include <regex>
#include <sdbusplus/bus/match.hpp>
#include <sdbusplus/server/object.hpp>
#include <variant>
#include <xyz/openbmc_project/Common/error.hpp>
#include <xyz/openbmc_project/User/Common/error.hpp>
namespace ipmi
{
// TODO: Move D-Bus & Object Manager related stuff, to common files
// D-Bus property related
static constexpr const char* dBusPropertiesInterface =
"org.freedesktop.DBus.Properties";
static constexpr const char* getAllPropertiesMethod = "GetAll";
static constexpr const char* propertiesChangedSignal = "PropertiesChanged";
static constexpr const char* setPropertiesMethod = "Set";
// Object Manager related
static constexpr const char* dBusObjManager =
"org.freedesktop.DBus.ObjectManager";
static constexpr const char* getManagedObjectsMethod = "GetManagedObjects";
// Object Manager signals
static constexpr const char* intfAddedSignal = "InterfacesAdded";
static constexpr const char* intfRemovedSignal = "InterfacesRemoved";
// Object Mapper related
static constexpr const char* objMapperService =
"xyz.openbmc_project.ObjectMapper";
static constexpr const char* objMapperPath =
"/xyz/openbmc_project/object_mapper";
static constexpr const char* objMapperInterface =
"xyz.openbmc_project.ObjectMapper";
static constexpr const char* getSubTreeMethod = "GetSubTree";
static constexpr const char* getObjectMethod = "GetObject";
static constexpr const char* ipmiUserMutex = "ipmi_usr_mutex";
static constexpr const char* ipmiMutexCleanupLockFile =
"/var/lib/ipmi/ipmi_usr_mutex_cleanup";
static constexpr const char* ipmiUserSignalLockFile =
"/var/lib/ipmi/ipmi_usr_signal_mutex";
static constexpr const char* ipmiUserDataFile = "/var/lib/ipmi/ipmi_user.json";
static constexpr const char* ipmiGrpName = "ipmi";
static constexpr size_t privNoAccess = 0xF;
static constexpr size_t privMask = 0xF;
// User manager related
static constexpr const char* userMgrObjBasePath = "/xyz/openbmc_project/user";
static constexpr const char* userObjBasePath = "/xyz/openbmc_project/user";
static constexpr const char* userMgrInterface =
"xyz.openbmc_project.User.Manager";
static constexpr const char* usersInterface =
"xyz.openbmc_project.User.Attributes";
static constexpr const char* deleteUserInterface =
"xyz.openbmc_project.Object.Delete";
static constexpr const char* createUserMethod = "CreateUser";
static constexpr const char* deleteUserMethod = "Delete";
static constexpr const char* renameUserMethod = "RenameUser";
// User manager signal memebers
static constexpr const char* userRenamedSignal = "UserRenamed";
// Mgr interface properties
static constexpr const char* allPrivProperty = "AllPrivileges";
static constexpr const char* allGrpProperty = "AllGroups";
// User interface properties
static constexpr const char* userPrivProperty = "UserPrivilege";
static constexpr const char* userGrpProperty = "UserGroups";
static constexpr const char* userEnabledProperty = "UserEnabled";
static std::array<std::string, (PRIVILEGE_OEM + 1)> ipmiPrivIndex = {
"priv-reserved", // PRIVILEGE_RESERVED - 0
"priv-callback", // PRIVILEGE_CALLBACK - 1
"priv-user", // PRIVILEGE_USER - 2
"priv-operator", // PRIVILEGE_OPERATOR - 3
"priv-admin", // PRIVILEGE_ADMIN - 4
"priv-custom" // PRIVILEGE_OEM - 5
};
using namespace phosphor::logging;
using Json = nlohmann::json;
using PrivAndGroupType = std::variant<std::string, std::vector<std::string>>;
using NoResource =
sdbusplus::xyz::openbmc_project::User::Common::Error::NoResource;
using InternalFailure =
sdbusplus::xyz::openbmc_project::Common::Error::InternalFailure;
std::unique_ptr<sdbusplus::bus::match_t> userUpdatedSignal
__attribute__((init_priority(101)));
std::unique_ptr<sdbusplus::bus::match_t> userMgrRenamedSignal
__attribute__((init_priority(101)));
std::unique_ptr<sdbusplus::bus::match_t> userPropertiesSignal
__attribute__((init_priority(101)));
// TODO: Below code can be removed once it is moved to common layer libmiscutil
std::string getUserService(sdbusplus::bus::bus& bus, const std::string& intf,
const std::string& path)
{
auto mapperCall = bus.new_method_call(objMapperService, objMapperPath,
objMapperInterface, getObjectMethod);
mapperCall.append(path);
mapperCall.append(std::vector<std::string>({intf}));
auto mapperResponseMsg = bus.call(mapperCall);
std::map<std::string, std::vector<std::string>> mapperResponse;
mapperResponseMsg.read(mapperResponse);
if (mapperResponse.begin() == mapperResponse.end())
{
throw sdbusplus::exception::SdBusError(
-EIO, "ERROR in reading the mapper response");
}
return mapperResponse.begin()->first;
}
void setDbusProperty(sdbusplus::bus::bus& bus, const std::string& service,
const std::string& objPath, const std::string& interface,
const std::string& property,
const DbusUserPropVariant& value)
{
try
{
auto method =
bus.new_method_call(service.c_str(), objPath.c_str(),
dBusPropertiesInterface, setPropertiesMethod);
method.append(interface, property, value);
bus.call(method);
}
catch (const sdbusplus::exception::exception& e)
{
log<level::ERR>("Failed to set property",
entry("PROPERTY=%s", property.c_str()),
entry("PATH=%s", objPath.c_str()),
entry("INTERFACE=%s", interface.c_str()));
throw;
}
}
static std::string getUserServiceName()
{
static sdbusplus::bus::bus bus(ipmid_get_sd_bus_connection());
static std::string userMgmtService;
if (userMgmtService.empty())
{
try
{
userMgmtService =
ipmi::getUserService(bus, userMgrInterface, userMgrObjBasePath);
}
catch (const sdbusplus::exception::exception& e)
{
userMgmtService.clear();
}
}
return userMgmtService;
}
UserAccess& getUserAccessObject()
{
static UserAccess userAccess;
return userAccess;
}
int getUserNameFromPath(const std::string& path, std::string& userName)
{
sdbusplus::message::object_path objPath(path);
userName.assign(objPath.filename());
return 0;
}
void userUpdateHelper(UserAccess& usrAccess, const UserUpdateEvent& userEvent,
const std::string& userName, const std::string& priv,
const bool& enabled, const std::string& newUserName)
{
UsersTbl* userData = usrAccess.getUsersTblPtr();
if (userEvent == UserUpdateEvent::userCreated)
{
if (usrAccess.addUserEntry(userName, priv, enabled) == false)
{
return;
}
}
else
{
// user index 0 is reserved, starts with 1
size_t usrIndex = 1;
for (; usrIndex <= ipmiMaxUsers; ++usrIndex)
{
std::string curName(
reinterpret_cast<char*>(userData->user[usrIndex].userName), 0,
ipmiMaxUserName);
if (userName == curName)
{
break; // found the entry
}
}
if (usrIndex > ipmiMaxUsers)
{
log<level::DEBUG>("User not found for signal",
entry("USER_NAME=%s", userName.c_str()),
entry("USER_EVENT=%d", userEvent));
return;
}
switch (userEvent)
{
case UserUpdateEvent::userDeleted:
{
usrAccess.deleteUserIndex(usrIndex);
break;
}
case UserUpdateEvent::userPrivUpdated:
{
uint8_t userPriv =
static_cast<uint8_t>(
UserAccess::convertToIPMIPrivilege(priv)) &
privMask;
// Update all channels privileges, only if it is not equivalent
// to getUsrMgmtSyncIndex()
if (userData->user[usrIndex]
.userPrivAccess[UserAccess::getUsrMgmtSyncIndex()]
.privilege != userPriv)
{
for (size_t chIndex = 0; chIndex < ipmiMaxChannels;
++chIndex)
{
userData->user[usrIndex]
.userPrivAccess[chIndex]
.privilege = userPriv;
}
}
break;
}
case UserUpdateEvent::userRenamed:
{
std::fill(
static_cast<uint8_t*>(userData->user[usrIndex].userName),
static_cast<uint8_t*>(userData->user[usrIndex].userName) +
sizeof(userData->user[usrIndex].userName),
0);
std::strncpy(
reinterpret_cast<char*>(userData->user[usrIndex].userName),
newUserName.c_str(), ipmiMaxUserName);
ipmiRenameUserEntryPassword(userName, newUserName);
break;
}
case UserUpdateEvent::userStateUpdated:
{
userData->user[usrIndex].userEnabled = enabled;
break;
}
default:
{
log<level::ERR>("Unhandled user event",
entry("USER_EVENT=%d", userEvent));
return;
}
}
}
usrAccess.writeUserData();
log<level::DEBUG>("User event handled successfully",
entry("USER_NAME=%s", userName.c_str()),
entry("USER_EVENT=%d", userEvent));
return;
}
void userUpdatedSignalHandler(UserAccess& usrAccess,
sdbusplus::message::message& msg)
{
static sdbusplus::bus::bus bus(ipmid_get_sd_bus_connection());
std::string signal = msg.get_member();
std::string userName, priv, newUserName;
std::vector<std::string> groups;
bool enabled = false;
UserUpdateEvent userEvent = UserUpdateEvent::reservedEvent;
if (signal == intfAddedSignal)
{
DbusUserObjPath objPath;
DbusUserObjValue objValue;
msg.read(objPath, objValue);
getUserNameFromPath(objPath.str, userName);
if (usrAccess.getUserObjProperties(objValue, groups, priv, enabled) !=
0)
{
return;
}
if (std::find(groups.begin(), groups.end(), ipmiGrpName) ==
groups.end())
{
return;
}
userEvent = UserUpdateEvent::userCreated;
}
else if (signal == intfRemovedSignal)
{
DbusUserObjPath objPath;
std::vector<std::string> interfaces;
msg.read(objPath, interfaces);
getUserNameFromPath(objPath.str, userName);
userEvent = UserUpdateEvent::userDeleted;
}
else if (signal == userRenamedSignal)
{
msg.read(userName, newUserName);
userEvent = UserUpdateEvent::userRenamed;
}
else if (signal == propertiesChangedSignal)
{
getUserNameFromPath(msg.get_path(), userName);
}
else
{
log<level::ERR>("Unknown user update signal",
entry("SIGNAL=%s", signal.c_str()));
return;
}
if (signal.empty() || userName.empty() ||
(signal == userRenamedSignal && newUserName.empty()))
{
log<level::ERR>("Invalid inputs received");
return;
}
boost::interprocess::scoped_lock<boost::interprocess::named_recursive_mutex>
userLock{*(usrAccess.userMutex)};
usrAccess.checkAndReloadUserData();
if (signal == propertiesChangedSignal)
{
std::string intfName;
DbusUserObjProperties chProperties;
msg.read(intfName, chProperties); // skip reading 3rd argument.
for (const auto& prop : chProperties)
{
userEvent = UserUpdateEvent::reservedEvent;
std::string member = prop.first;
if (member == userPrivProperty)
{
priv = std::get<std::string>(prop.second);
userEvent = UserUpdateEvent::userPrivUpdated;
}
else if (member == userGrpProperty)
{
groups = std::get<std::vector<std::string>>(prop.second);
userEvent = UserUpdateEvent::userGrpUpdated;
}
else if (member == userEnabledProperty)
{
enabled = std::get<bool>(prop.second);
userEvent = UserUpdateEvent::userStateUpdated;
}
// Process based on event type.
if (userEvent == UserUpdateEvent::userGrpUpdated)
{
if (std::find(groups.begin(), groups.end(), ipmiGrpName) ==
groups.end())
{
// remove user from ipmi user list.
userUpdateHelper(usrAccess, UserUpdateEvent::userDeleted,
userName, priv, enabled, newUserName);
}
else
{
DbusUserObjProperties properties;
try
{
auto method = bus.new_method_call(
getUserServiceName().c_str(), msg.get_path(),
dBusPropertiesInterface, getAllPropertiesMethod);
method.append(usersInterface);
auto reply = bus.call(method);
reply.read(properties);
}
catch (const sdbusplus::exception::exception& e)
{
log<level::DEBUG>(
"Failed to excute method",
entry("METHOD=%s", getAllPropertiesMethod),
entry("PATH=%s", msg.get_path()));
return;
}
usrAccess.getUserProperties(properties, groups, priv,
enabled);
// add user to ipmi user list.
userUpdateHelper(usrAccess, UserUpdateEvent::userCreated,
userName, priv, enabled, newUserName);
}
}
else if (userEvent != UserUpdateEvent::reservedEvent)
{
userUpdateHelper(usrAccess, userEvent, userName, priv, enabled,
newUserName);
}
}
}
else if (userEvent != UserUpdateEvent::reservedEvent)
{
userUpdateHelper(usrAccess, userEvent, userName, priv, enabled,
newUserName);
}
return;
}
UserAccess::~UserAccess()
{
if (signalHndlrObject)
{
userUpdatedSignal.reset();
userMgrRenamedSignal.reset();
userPropertiesSignal.reset();
sigHndlrLock.unlock();
}
}
UserAccess::UserAccess() : bus(ipmid_get_sd_bus_connection())
{
std::ofstream mutexCleanUpFile;
mutexCleanUpFile.open(ipmiMutexCleanupLockFile,
std::ofstream::out | std::ofstream::app);
if (!mutexCleanUpFile.good())
{
log<level::DEBUG>("Unable to open mutex cleanup file");
return;
}
mutexCleanUpFile.close();
mutexCleanupLock = boost::interprocess::file_lock(ipmiMutexCleanupLockFile);
if (mutexCleanupLock.try_lock())
{
boost::interprocess::named_recursive_mutex::remove(ipmiUserMutex);
}
mutexCleanupLock.lock_sharable();
userMutex = std::make_unique<boost::interprocess::named_recursive_mutex>(
boost::interprocess::open_or_create, ipmiUserMutex);
cacheUserDataFile();
getSystemPrivAndGroups();
}
UserInfo* UserAccess::getUserInfo(const uint8_t userId)
{
checkAndReloadUserData();
return &usersTbl.user[userId];
}
void UserAccess::setUserInfo(const uint8_t userId, UserInfo* userInfo)
{
checkAndReloadUserData();
std::copy(reinterpret_cast<uint8_t*>(userInfo),
reinterpret_cast<uint8_t*>(userInfo) + sizeof(*userInfo),
reinterpret_cast<uint8_t*>(&usersTbl.user[userId]));
writeUserData();
}
bool UserAccess::isValidChannel(const uint8_t chNum)
{
return (chNum < ipmiMaxChannels);
}
bool UserAccess::isValidUserId(const uint8_t userId)
{
return ((userId <= ipmiMaxUsers) && (userId != reservedUserId));
}
bool UserAccess::isValidPrivilege(const uint8_t priv)
{
// Callback privilege is deprecated in OpenBMC
return (isValidPrivLimit(priv) || priv == privNoAccess);
}
uint8_t UserAccess::getUsrMgmtSyncIndex()
{
// Identify the IPMI channel used to assign system user privilege levels
// in phosphor-user-manager. The default value is IPMI Channel 1. To
// assign a different channel add:
// "is_management_nic" : true
// into the channel_config.json file describing the assignment of the IPMI
// channels. It is only necessary to add the string above to ONE record in
// the channel_config.json file. All other records will be automatically
// assigned a "false" value.
return getChannelConfigObject().getManagementNICID();
}
CommandPrivilege UserAccess::convertToIPMIPrivilege(const std::string& value)
{
auto iter = std::find(ipmiPrivIndex.begin(), ipmiPrivIndex.end(), value);
if (iter == ipmiPrivIndex.end())
{
if (value == "")
{
return static_cast<CommandPrivilege>(privNoAccess);
}
log<level::ERR>("Error in converting to IPMI privilege",
entry("PRIV=%s", value.c_str()));
throw std::out_of_range("Out of range - convertToIPMIPrivilege");
}
else
{
return static_cast<CommandPrivilege>(
std::distance(ipmiPrivIndex.begin(), iter));
}
}
std::string UserAccess::convertToSystemPrivilege(const CommandPrivilege& value)
{
if (value == static_cast<CommandPrivilege>(privNoAccess))
{
return "";
}
try
{
return ipmiPrivIndex.at(value);
}
catch (const std::out_of_range& e)
{
log<level::ERR>("Error in converting to system privilege",
entry("PRIV=%d", static_cast<uint8_t>(value)));
throw std::out_of_range("Out of range - convertToSystemPrivilege");
}
}
bool UserAccess::isValidUserName(const std::string& userName)
{
if (userName.empty())
{
log<level::ERR>("userName is empty");
return false;
}
if (!std::regex_match(userName.c_str(),
std::regex("[a-zA-z_][a-zA-Z_0-9]*")))
{
log<level::ERR>("Unsupported characters in user name");
return false;
}
if (userName == "root")
{
log<level::ERR>("Invalid user name - root");
return false;
}
std::map<DbusUserObjPath, DbusUserObjValue> properties;
try
{
auto method = bus.new_method_call(getUserServiceName().c_str(),
userMgrObjBasePath, dBusObjManager,
getManagedObjectsMethod);
auto reply = bus.call(method);
reply.read(properties);
}
catch (const sdbusplus::exception::exception& e)
{
log<level::ERR>("Failed to excute method",
entry("METHOD=%s", getSubTreeMethod),
entry("PATH=%s", userMgrObjBasePath));
return false;
}
sdbusplus::message::object_path tempUserPath(userObjBasePath);
tempUserPath /= userName;
std::string usersPath(tempUserPath);
if (properties.find(usersPath) != properties.end())
{
log<level::DEBUG>("User name already exists",
entry("USER_NAME=%s", userName.c_str()));
return false;
}
return true;
}
/** @brief Information exchanged by pam module and application.
*
* @param[in] numMsg - length of the array of pointers,msg.
*
* @param[in] msg - pointer to an array of pointers to pam_message structure
*
* @param[out] resp - struct pam response array
*
* @param[in] appdataPtr - member of pam_conv structure
*
* @return the response in pam response structure.
*/
static int pamFunctionConversation(int numMsg, const struct pam_message** msg,
struct pam_response** resp, void* appdataPtr)
{
if (appdataPtr == nullptr)
{
return PAM_CONV_ERR;
}
if (numMsg <= 0 || numMsg >= PAM_MAX_NUM_MSG)
{
return PAM_CONV_ERR;
}
for (int i = 0; i < numMsg; ++i)
{
/* Ignore all PAM messages except prompting for hidden input */
if (msg[i]->msg_style != PAM_PROMPT_ECHO_OFF)
{
continue;
}
/* Assume PAM is only prompting for the password as hidden input */
/* Allocate memory only when PAM_PROMPT_ECHO_OFF is encounterred */
char* appPass = reinterpret_cast<char*>(appdataPtr);
size_t appPassSize = std::strlen(appPass);
if (appPassSize >= PAM_MAX_RESP_SIZE)
{
return PAM_CONV_ERR;
}
char* pass = reinterpret_cast<char*>(malloc(appPassSize + 1));
if (pass == nullptr)
{
return PAM_BUF_ERR;
}
void* ptr =
calloc(static_cast<size_t>(numMsg), sizeof(struct pam_response));
if (ptr == nullptr)
{
free(pass);
return PAM_BUF_ERR;
}
std::strncpy(pass, appPass, appPassSize + 1);
*resp = reinterpret_cast<pam_response*>(ptr);
resp[i]->resp = pass;
return PAM_SUCCESS;
}
return PAM_CONV_ERR;
}
/** @brief Updating the PAM password
*
* @param[in] username - username in string
*
* @param[in] password - new password in string
*
* @return status
*/
int pamUpdatePasswd(const char* username, const char* password)
{
const struct pam_conv localConversation = {pamFunctionConversation,
const_cast<char*>(password)};
pam_handle_t* localAuthHandle = NULL; // this gets set by pam_start
int retval =
pam_start("passwd", username, &localConversation, &localAuthHandle);
if (retval != PAM_SUCCESS)
{
return retval;
}
retval = pam_chauthtok(localAuthHandle, PAM_SILENT);
if (retval != PAM_SUCCESS)
{
pam_end(localAuthHandle, retval);
return retval;
}
return pam_end(localAuthHandle, PAM_SUCCESS);
}
bool pamUserCheckAuthenticate(std::string_view username,
std::string_view password)
{
const struct pam_conv localConversation = {
pamFunctionConversation, const_cast<char*>(password.data())};
pam_handle_t* localAuthHandle = NULL; // this gets set by pam_start
if (pam_start("dropbear", username.data(), &localConversation,
&localAuthHandle) != PAM_SUCCESS)
{
log<level::ERR>("User Authentication Failure");
return false;
}
int retval = pam_authenticate(localAuthHandle,
PAM_SILENT | PAM_DISALLOW_NULL_AUTHTOK);
if (retval != PAM_SUCCESS)
{
log<level::DEBUG>("pam_authenticate returned failure",
entry("ERROR=%d", retval));
pam_end(localAuthHandle, retval);
return false;
}
if (pam_acct_mgmt(localAuthHandle, PAM_DISALLOW_NULL_AUTHTOK) !=
PAM_SUCCESS)
{
pam_end(localAuthHandle, PAM_SUCCESS);
return false;
}
if (pam_end(localAuthHandle, PAM_SUCCESS) != PAM_SUCCESS)
{
return false;
}
return true;
}
Cc UserAccess::setSpecialUserPassword(const std::string& userName,
const SecureString& userPassword)
{
if (pamUpdatePasswd(userName.c_str(), userPassword.c_str()) != PAM_SUCCESS)
{
log<level::DEBUG>("Failed to update password");
return ccUnspecifiedError;
}
return ccSuccess;
}
Cc UserAccess::setUserPassword(const uint8_t userId, const char* userPassword)
{
std::string userName;
if (ipmiUserGetUserName(userId, userName) != ccSuccess)
{
log<level::DEBUG>("User Name not found",
entry("USER-ID=%d", (uint8_t)userId));
return ccParmOutOfRange;
}
ipmi::SecureString passwd;
passwd.assign(reinterpret_cast<const char*>(userPassword), 0,
maxIpmi20PasswordSize);
int retval = pamUpdatePasswd(userName.c_str(), passwd.c_str());
switch (retval)
{
case PAM_SUCCESS:
{
return ccSuccess;
}
case PAM_AUTHTOK_ERR:
{
log<level::DEBUG>("Bad authentication token");
return ccInvalidFieldRequest;
}
default:
{
log<level::DEBUG>("Failed to update password",
entry("USER-ID=%d", (uint8_t)userId));
return ccUnspecifiedError;
}
}
}
Cc UserAccess::setUserEnabledState(const uint8_t userId,
const bool& enabledState)
{
if (!isValidUserId(userId))
{
return ccParmOutOfRange;
}
boost::interprocess::scoped_lock<boost::interprocess::named_recursive_mutex>
userLock{*userMutex};
UserInfo* userInfo = getUserInfo(userId);
std::string userName;
userName.assign(reinterpret_cast<char*>(userInfo->userName), 0,
ipmiMaxUserName);
if (userName.empty())
{
log<level::DEBUG>("User name not set / invalid");
return ccUnspecifiedError;
}
if (userInfo->userEnabled != enabledState)
{
sdbusplus::message::object_path tempUserPath(userObjBasePath);
tempUserPath /= userName;
std::string userPath(tempUserPath);
setDbusProperty(bus, getUserServiceName(), userPath, usersInterface,
userEnabledProperty, enabledState);
userInfo->userEnabled = enabledState;
try
{
writeUserData();
}
catch (const std::exception& e)
{
log<level::DEBUG>("Write user data failed");
return ccUnspecifiedError;
}
}
return ccSuccess;
}
Cc UserAccess::setUserPayloadAccess(const uint8_t chNum,
const uint8_t operation,
const uint8_t userId,
const PayloadAccess& payloadAccess)
{
constexpr uint8_t enable = 0x0;
constexpr uint8_t disable = 0x1;
if (!isValidChannel(chNum))
{
return ccInvalidFieldRequest;
}
if (!isValidUserId(userId))
{
return ccParmOutOfRange;
}
if (operation != enable && operation != disable)
{
return ccInvalidFieldRequest;
}
// Check operation & payloadAccess if required.
boost::interprocess::scoped_lock<boost::interprocess::named_recursive_mutex>
userLock{*userMutex};
UserInfo* userInfo = getUserInfo(userId);
if (operation == enable)
{
userInfo->payloadAccess[chNum].stdPayloadEnables1 |=
payloadAccess.stdPayloadEnables1;
userInfo->payloadAccess[chNum].oemPayloadEnables1 |=
payloadAccess.oemPayloadEnables1;
}
else
{
userInfo->payloadAccess[chNum].stdPayloadEnables1 &=
~(payloadAccess.stdPayloadEnables1);
userInfo->payloadAccess[chNum].oemPayloadEnables1 &=
~(payloadAccess.oemPayloadEnables1);
}
try
{
writeUserData();
}
catch (const std::exception& e)
{
log<level::ERR>("Write user data failed");
return ccUnspecifiedError;
}
return ccSuccess;
}
Cc UserAccess::setUserPrivilegeAccess(const uint8_t userId, const uint8_t chNum,
const UserPrivAccess& privAccess,
const bool& otherPrivUpdates)
{
if (!isValidChannel(chNum))
{
return ccInvalidFieldRequest;
}
if (!isValidUserId(userId))
{
return ccParmOutOfRange;
}
boost::interprocess::scoped_lock<boost::interprocess::named_recursive_mutex>
userLock{*userMutex};
UserInfo* userInfo = getUserInfo(userId);
std::string userName;
userName.assign(reinterpret_cast<char*>(userInfo->userName), 0,
ipmiMaxUserName);
if (userName.empty())
{
log<level::DEBUG>("User name not set / invalid");
return ccUnspecifiedError;
}
std::string priv = convertToSystemPrivilege(
static_cast<CommandPrivilege>(privAccess.privilege));
uint8_t syncIndex = getUsrMgmtSyncIndex();
if (chNum == syncIndex &&
privAccess.privilege != userInfo->userPrivAccess[syncIndex].privilege)
{
sdbusplus::message::object_path tempUserPath(userObjBasePath);
tempUserPath /= userName;
std::string userPath(tempUserPath);
setDbusProperty(bus, getUserServiceName(), userPath, usersInterface,
userPrivProperty, priv);
}
userInfo->userPrivAccess[chNum].privilege = privAccess.privilege;
if (otherPrivUpdates)
{
userInfo->userPrivAccess[chNum].ipmiEnabled = privAccess.ipmiEnabled;
userInfo->userPrivAccess[chNum].linkAuthEnabled =
privAccess.linkAuthEnabled;
userInfo->userPrivAccess[chNum].accessCallback =
privAccess.accessCallback;
}
try
{
writeUserData();
}
catch (const std::exception& e)
{
log<level::DEBUG>("Write user data failed");
return ccUnspecifiedError;
}
return ccSuccess;
}
uint8_t UserAccess::getUserId(const std::string& userName)
{
boost::interprocess::scoped_lock<boost::interprocess::named_recursive_mutex>
userLock{*userMutex};
checkAndReloadUserData();
// user index 0 is reserved, starts with 1
size_t usrIndex = 1;
for (; usrIndex <= ipmiMaxUsers; ++usrIndex)
{
std::string curName(
reinterpret_cast<char*>(usersTbl.user[usrIndex].userName), 0,
ipmiMaxUserName);
if (userName == curName)
{
break; // found the entry
}
}
if (usrIndex > ipmiMaxUsers)
{
log<level::DEBUG>("User not found",
entry("USER_NAME=%s", userName.c_str()));
return invalidUserId;
}
return usrIndex;
}
Cc UserAccess::getUserName(const uint8_t userId, std::string& userName)
{
if (!isValidUserId(userId))
{
return ccParmOutOfRange;
}
UserInfo* userInfo = getUserInfo(userId);
userName.assign(reinterpret_cast<char*>(userInfo->userName), 0,
ipmiMaxUserName);
return ccSuccess;
}
bool UserAccess::isIpmiInAvailableGroupList()
{
if (std::find(availableGroups.begin(), availableGroups.end(),
ipmiGrpName) != availableGroups.end())
{
return true;
}
if (availableGroups.empty())
{
// available groups shouldn't be empty, re-query
getSystemPrivAndGroups();
if (std::find(availableGroups.begin(), availableGroups.end(),
ipmiGrpName) != availableGroups.end())
{
return true;
}
}
return false;
}
Cc UserAccess::setUserName(const uint8_t userId, const std::string& userName)
{
if (!isValidUserId(userId))
{
return ccParmOutOfRange;
}
boost::interprocess::scoped_lock<boost::interprocess::named_recursive_mutex>
userLock{*userMutex};
std::string oldUser;
getUserName(userId, oldUser);
if (oldUser == userName)
{
// requesting to set the same user name, return success.
return ccSuccess;
}
bool validUser = isValidUserName(userName);
UserInfo* userInfo = getUserInfo(userId);
if (userName.empty() && !oldUser.empty())
{
// Delete existing user
sdbusplus::message::object_path tempUserPath(userObjBasePath);
tempUserPath /= oldUser;
std::string userPath(tempUserPath);
try
{
auto method = bus.new_method_call(
getUserServiceName().c_str(), userPath.c_str(),
deleteUserInterface, deleteUserMethod);
auto reply = bus.call(method);
}
catch (const sdbusplus::exception::exception& e)
{
log<level::DEBUG>("Failed to excute method",
entry("METHOD=%s", deleteUserMethod),
entry("PATH=%s", userPath.c_str()));
return ccUnspecifiedError;
}
deleteUserIndex(userId);
}
else if (oldUser.empty() && !userName.empty() && validUser)
{
try
{
if (!isIpmiInAvailableGroupList())
{
return ccUnspecifiedError;
}
// Create new user
auto method = bus.new_method_call(
getUserServiceName().c_str(), userMgrObjBasePath,
userMgrInterface, createUserMethod);
method.append(userName.c_str(), availableGroups, "", false);
auto reply = bus.call(method);
}
catch (const sdbusplus::exception::exception& e)
{
log<level::DEBUG>("Failed to excute method",
entry("METHOD=%s", createUserMethod),
entry("PATH=%s", userMgrObjBasePath));
return ccUnspecifiedError;
}
std::memset(userInfo->userName, 0, sizeof(userInfo->userName));
std::memcpy(userInfo->userName,
static_cast<const void*>(userName.data()), userName.size());
userInfo->userInSystem = true;
}
else if (oldUser != userName && validUser)
{
try
{
// User rename
auto method = bus.new_method_call(
getUserServiceName().c_str(), userMgrObjBasePath,
userMgrInterface, renameUserMethod);
method.append(oldUser.c_str(), userName.c_str());
auto reply = bus.call(method);
}
catch (const sdbusplus::exception::exception& e)
{
log<level::DEBUG>("Failed to excute method",
entry("METHOD=%s", renameUserMethod),
entry("PATH=%s", userMgrObjBasePath));
return ccUnspecifiedError;
}
std::fill(static_cast<uint8_t*>(userInfo->userName),
static_cast<uint8_t*>(userInfo->userName) +
sizeof(userInfo->userName),
0);
std::memset(userInfo->userName, 0, sizeof(userInfo->userName));
std::memcpy(userInfo->userName,
static_cast<const void*>(userName.data()), userName.size());
ipmiRenameUserEntryPassword(oldUser, userName);
userInfo->userInSystem = true;
}
else if (!validUser)
{
return ccInvalidFieldRequest;
}
try
{
writeUserData();
}
catch (const std::exception& e)
{
log<level::DEBUG>("Write user data failed");
return ccUnspecifiedError;
}
return ccSuccess;
}
static constexpr const char* jsonUserName = "user_name";
static constexpr const char* jsonPriv = "privilege";
static constexpr const char* jsonIpmiEnabled = "ipmi_enabled";
static constexpr const char* jsonLinkAuthEnabled = "link_auth_enabled";
static constexpr const char* jsonAccCallbk = "access_callback";
static constexpr const char* jsonUserEnabled = "user_enabled";
static constexpr const char* jsonUserInSys = "user_in_system";
static constexpr const char* jsonFixedUser = "fixed_user_name";
static constexpr const char* payloadEnabledStr = "payload_enabled";
static constexpr const char* stdPayloadStr = "std_payload";
static constexpr const char* oemPayloadStr = "OEM_payload";
/** @brief to construct a JSON object from the given payload access details.
*
* @param[in] stdPayload - stdPayloadEnables1 in a 2D-array. (input)
* @param[in] oemPayload - oemPayloadEnables1 in a 2D-array. (input)
*
* @details Sample output JSON object format :
* "payload_enabled":{
* "OEM_payload0":[false,...<repeat 'ipmiMaxChannels - 1' times>],
* "OEM_payload1":[false,...<repeat 'ipmiMaxChannels - 1' times>],
* "OEM_payload2":[false,...<repeat 'ipmiMaxChannels - 1' times>],
* "OEM_payload3":[false,...<repeat 'ipmiMaxChannels - 1' times>],
* "OEM_payload4":[false,...<repeat 'ipmiMaxChannels - 1' times>],
* "OEM_payload5":[false,...<repeat 'ipmiMaxChannels - 1' times>],
* "OEM_payload6":[false,...<repeat 'ipmiMaxChannels - 1' times>],
* "OEM_payload7":[false,...<repeat 'ipmiMaxChannels - 1' times>],
* "std_payload0":[false,...<repeat 'ipmiMaxChannels - 1' times>],
* "std_payload1":[false,...<repeat 'ipmiMaxChannels - 1' times>],
* "std_payload2":[false,...<repeat 'ipmiMaxChannels - 1' times>],
* "std_payload3":[false,...<repeat 'ipmiMaxChannels - 1' times>],
* "std_payload4":[false,...<repeat 'ipmiMaxChannels - 1' times>],
* "std_payload5":[false,...<repeat 'ipmiMaxChannels - 1' times>],
* "std_payload6":[false,...<repeat 'ipmiMaxChannels - 1' times>],
* "std_payload7":[false,...<repeat 'ipmiMaxChannels - 1' times>],
* }
*/
static const Json constructJsonPayloadEnables(
const std::array<std::array<bool, ipmiMaxChannels>, payloadsPerByte>&
stdPayload,
const std::array<std::array<bool, ipmiMaxChannels>, payloadsPerByte>&
oemPayload)
{
Json jsonPayloadEnabled;
for (auto payloadNum = 0; payloadNum < payloadsPerByte; payloadNum++)
{
std::ostringstream stdPayloadStream;
std::ostringstream oemPayloadStream;
stdPayloadStream << stdPayloadStr << payloadNum;
oemPayloadStream << oemPayloadStr << payloadNum;
jsonPayloadEnabled.push_back(Json::object_t::value_type(
stdPayloadStream.str(), stdPayload[payloadNum]));
jsonPayloadEnabled.push_back(Json::object_t::value_type(
oemPayloadStream.str(), oemPayload[payloadNum]));
}
return jsonPayloadEnabled;
}
void UserAccess::readPayloadAccessFromUserInfo(
const UserInfo& userInfo,
std::array<std::array<bool, ipmiMaxChannels>, payloadsPerByte>& stdPayload,
std::array<std::array<bool, ipmiMaxChannels>, payloadsPerByte>& oemPayload)
{
for (auto payloadNum = 0; payloadNum < payloadsPerByte; payloadNum++)
{
for (auto chIndex = 0; chIndex < ipmiMaxChannels; chIndex++)
{
stdPayload[payloadNum][chIndex] =
userInfo.payloadAccess[chIndex].stdPayloadEnables1[payloadNum];
oemPayload[payloadNum][chIndex] =
userInfo.payloadAccess[chIndex].oemPayloadEnables1[payloadNum];
}
}
}
void UserAccess::updatePayloadAccessInUserInfo(
const std::array<std::array<bool, ipmiMaxChannels>, payloadsPerByte>&
stdPayload,
const std::array<std::array<bool, ipmiMaxChannels>, payloadsPerByte>&,
UserInfo& userInfo)
{
for (size_t chIndex = 0; chIndex < ipmiMaxChannels; ++chIndex)
{
// Ensure that reserved/unsupported payloads are marked to zero.
userInfo.payloadAccess[chIndex].stdPayloadEnables1.reset();
userInfo.payloadAccess[chIndex].oemPayloadEnables1.reset();
userInfo.payloadAccess[chIndex].stdPayloadEnables2Reserved.reset();
userInfo.payloadAccess[chIndex].oemPayloadEnables2Reserved.reset();
// Update SOL status as it is the only supported payload currently.
userInfo.payloadAccess[chIndex]
.stdPayloadEnables1[static_cast<uint8_t>(ipmi::PayloadType::SOL)] =
stdPayload[static_cast<uint8_t>(ipmi::PayloadType::SOL)][chIndex];
}
}
void UserAccess::readUserData()
{
boost::interprocess::scoped_lock<boost::interprocess::named_recursive_mutex>
userLock{*userMutex};
std::ifstream iUsrData(ipmiUserDataFile, std::ios::in | std::ios::binary);
if (!iUsrData.good())
{
log<level::ERR>("Error in reading IPMI user data file");
throw std::ios_base::failure("Error opening IPMI user data file");
}
Json jsonUsersTbl = Json::array();
jsonUsersTbl = Json::parse(iUsrData, nullptr, false);
if (jsonUsersTbl.size() != ipmiMaxUsers)
{
log<level::ERR>(
"Error in reading IPMI user data file - User count issues");
throw std::runtime_error(
"Corrupted IPMI user data file - invalid user count");
}
// user index 0 is reserved, starts with 1
for (size_t usrIndex = 1; usrIndex <= ipmiMaxUsers; ++usrIndex)
{
Json userInfo = jsonUsersTbl[usrIndex - 1]; // json array starts with 0.
if (userInfo.is_null())
{
log<level::ERR>("Error in reading IPMI user data file - "
"user info corrupted");
throw std::runtime_error(
"Corrupted IPMI user data file - invalid user info");
}
std::string userName = userInfo[jsonUserName].get<std::string>();
std::strncpy(reinterpret_cast<char*>(usersTbl.user[usrIndex].userName),
userName.c_str(), ipmiMaxUserName);
std::vector<std::string> privilege =
userInfo[jsonPriv].get<std::vector<std::string>>();
std::vector<bool> ipmiEnabled =
userInfo[jsonIpmiEnabled].get<std::vector<bool>>();
std::vector<bool> linkAuthEnabled =
userInfo[jsonLinkAuthEnabled].get<std::vector<bool>>();
std::vector<bool> accessCallback =
userInfo[jsonAccCallbk].get<std::vector<bool>>();
// Payload Enables Processing.
std::array<std::array<bool, ipmiMaxChannels>, payloadsPerByte>
stdPayload = {};
std::array<std::array<bool, ipmiMaxChannels>, payloadsPerByte>
oemPayload = {};
try
{
const auto jsonPayloadEnabled = userInfo.at(payloadEnabledStr);
for (auto payloadNum = 0; payloadNum < payloadsPerByte;
payloadNum++)
{
std::ostringstream stdPayloadStream;
std::ostringstream oemPayloadStream;
stdPayloadStream << stdPayloadStr << payloadNum;
oemPayloadStream << oemPayloadStr << payloadNum;
stdPayload[payloadNum] =
jsonPayloadEnabled[stdPayloadStream.str()]
.get<std::array<bool, ipmiMaxChannels>>();
oemPayload[payloadNum] =
jsonPayloadEnabled[oemPayloadStream.str()]
.get<std::array<bool, ipmiMaxChannels>>();
if (stdPayload[payloadNum].size() != ipmiMaxChannels ||
oemPayload[payloadNum].size() != ipmiMaxChannels)
{
log<level::ERR>("Error in reading IPMI user data file - "
"payload properties corrupted");
throw std::runtime_error(
"Corrupted IPMI user data file - payload properties");
}
}
}
catch (const Json::out_of_range& e)
{
// Key not found in 'userInfo'; possibly an old JSON file. Use
// default values for all payloads, and SOL payload default is true.
stdPayload[static_cast<uint8_t>(ipmi::PayloadType::SOL)].fill(true);
}
if (privilege.size() != ipmiMaxChannels ||
ipmiEnabled.size() != ipmiMaxChannels ||
linkAuthEnabled.size() != ipmiMaxChannels ||
accessCallback.size() != ipmiMaxChannels)
{
log<level::ERR>("Error in reading IPMI user data file - "
"properties corrupted");
throw std::runtime_error(
"Corrupted IPMI user data file - properties");
}
for (size_t chIndex = 0; chIndex < ipmiMaxChannels; ++chIndex)
{
usersTbl.user[usrIndex].userPrivAccess[chIndex].privilege =
static_cast<uint8_t>(
convertToIPMIPrivilege(privilege[chIndex]));
usersTbl.user[usrIndex].userPrivAccess[chIndex].ipmiEnabled =
ipmiEnabled[chIndex];
usersTbl.user[usrIndex].userPrivAccess[chIndex].linkAuthEnabled =
linkAuthEnabled[chIndex];
usersTbl.user[usrIndex].userPrivAccess[chIndex].accessCallback =
accessCallback[chIndex];
}
updatePayloadAccessInUserInfo(stdPayload, oemPayload,
usersTbl.user[usrIndex]);
usersTbl.user[usrIndex].userEnabled =
userInfo[jsonUserEnabled].get<bool>();
usersTbl.user[usrIndex].userInSystem =
userInfo[jsonUserInSys].get<bool>();
usersTbl.user[usrIndex].fixedUserName =
userInfo[jsonFixedUser].get<bool>();
}
log<level::DEBUG>("User data read from IPMI data file");
iUsrData.close();
// Update the timestamp
fileLastUpdatedTime = getUpdatedFileTime();
return;
}
void UserAccess::writeUserData()
{
boost::interprocess::scoped_lock<boost::interprocess::named_recursive_mutex>
userLock{*userMutex};
Json jsonUsersTbl = Json::array();
// user index 0 is reserved, starts with 1
for (size_t usrIndex = 1; usrIndex <= ipmiMaxUsers; ++usrIndex)
{
Json jsonUserInfo;
jsonUserInfo[jsonUserName] = std::string(
reinterpret_cast<char*>(usersTbl.user[usrIndex].userName), 0,
ipmiMaxUserName);
std::vector<std::string> privilege(ipmiMaxChannels);
std::vector<bool> ipmiEnabled(ipmiMaxChannels);
std::vector<bool> linkAuthEnabled(ipmiMaxChannels);
std::vector<bool> accessCallback(ipmiMaxChannels);
std::array<std::array<bool, ipmiMaxChannels>, payloadsPerByte>
stdPayload;
std::array<std::array<bool, ipmiMaxChannels>, payloadsPerByte>
oemPayload;
for (size_t chIndex = 0; chIndex < ipmiMaxChannels; chIndex++)
{
privilege[chIndex] =
convertToSystemPrivilege(static_cast<CommandPrivilege>(
usersTbl.user[usrIndex].userPrivAccess[chIndex].privilege));
ipmiEnabled[chIndex] =
usersTbl.user[usrIndex].userPrivAccess[chIndex].ipmiEnabled;
linkAuthEnabled[chIndex] =
usersTbl.user[usrIndex].userPrivAccess[chIndex].linkAuthEnabled;
accessCallback[chIndex] =
usersTbl.user[usrIndex].userPrivAccess[chIndex].accessCallback;
}
jsonUserInfo[jsonPriv] = privilege;
jsonUserInfo[jsonIpmiEnabled] = ipmiEnabled;
jsonUserInfo[jsonLinkAuthEnabled] = linkAuthEnabled;
jsonUserInfo[jsonAccCallbk] = accessCallback;
jsonUserInfo[jsonUserEnabled] = usersTbl.user[usrIndex].userEnabled;
jsonUserInfo[jsonUserInSys] = usersTbl.user[usrIndex].userInSystem;
jsonUserInfo[jsonFixedUser] = usersTbl.user[usrIndex].fixedUserName;
readPayloadAccessFromUserInfo(usersTbl.user[usrIndex], stdPayload,
oemPayload);
Json jsonPayloadEnabledInfo =
constructJsonPayloadEnables(stdPayload, oemPayload);
jsonUserInfo[payloadEnabledStr] = jsonPayloadEnabledInfo;
jsonUsersTbl.push_back(jsonUserInfo);
}
static std::string tmpFile{std::string(ipmiUserDataFile) + "_tmp"};
int fd = open(tmpFile.c_str(), O_CREAT | O_WRONLY | O_TRUNC | O_SYNC,
S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
if (fd < 0)
{
log<level::ERR>("Error in creating temporary IPMI user data file");
throw std::ios_base::failure(
"Error in creating temporary IPMI user data file");
}
const auto& writeStr = jsonUsersTbl.dump();
if (write(fd, writeStr.c_str(), writeStr.size()) !=
static_cast<ssize_t>(writeStr.size()))
{
close(fd);
log<level::ERR>("Error in writing temporary IPMI user data file");
throw std::ios_base::failure(
"Error in writing temporary IPMI user data file");
}
close(fd);
if (std::rename(tmpFile.c_str(), ipmiUserDataFile) != 0)
{
log<level::ERR>("Error in renaming temporary IPMI user data file");
throw std::runtime_error("Error in renaming IPMI user data file");
}
// Update the timestamp
fileLastUpdatedTime = getUpdatedFileTime();
return;
}
bool UserAccess::addUserEntry(const std::string& userName,
const std::string& sysPriv, const bool& enabled)
{
UsersTbl* userData = getUsersTblPtr();
size_t freeIndex = 0xFF;
// user index 0 is reserved, starts with 1
for (size_t usrIndex = 1; usrIndex <= ipmiMaxUsers; ++usrIndex)
{
std::string curName(
reinterpret_cast<char*>(userData->user[usrIndex].userName), 0,
ipmiMaxUserName);
if (userName == curName)
{
log<level::DEBUG>("User name exists",
entry("USER_NAME=%s", userName.c_str()));
return false; // user name exists.
}
if ((!userData->user[usrIndex].userInSystem) &&
(userData->user[usrIndex].userName[0] == '\0') &&
(freeIndex == 0xFF))
{
freeIndex = usrIndex;
}
}
if (freeIndex == 0xFF)
{
log<level::ERR>("No empty slots found");
return false;
}
std::strncpy(reinterpret_cast<char*>(userData->user[freeIndex].userName),
userName.c_str(), ipmiMaxUserName);
uint8_t priv =
static_cast<uint8_t>(UserAccess::convertToIPMIPrivilege(sysPriv)) &
privMask;
for (size_t chIndex = 0; chIndex < ipmiMaxChannels; ++chIndex)
{
userData->user[freeIndex].userPrivAccess[chIndex].privilege = priv;
userData->user[freeIndex].userPrivAccess[chIndex].ipmiEnabled = true;
userData->user[freeIndex].userPrivAccess[chIndex].linkAuthEnabled =
true;
userData->user[freeIndex].userPrivAccess[chIndex].accessCallback = true;
}
userData->user[freeIndex].userInSystem = true;
userData->user[freeIndex].userEnabled = enabled;
return true;
}
void UserAccess::deleteUserIndex(const size_t& usrIdx)
{
UsersTbl* userData = getUsersTblPtr();
std::string userName(
reinterpret_cast<char*>(userData->user[usrIdx].userName), 0,
ipmiMaxUserName);
ipmiClearUserEntryPassword(userName);
std::fill(static_cast<uint8_t*>(userData->user[usrIdx].userName),
static_cast<uint8_t*>(userData->user[usrIdx].userName) +
sizeof(userData->user[usrIdx].userName),
0);
for (size_t chIndex = 0; chIndex < ipmiMaxChannels; ++chIndex)
{
userData->user[usrIdx].userPrivAccess[chIndex].privilege = privNoAccess;
userData->user[usrIdx].userPrivAccess[chIndex].ipmiEnabled = false;
userData->user[usrIdx].userPrivAccess[chIndex].linkAuthEnabled = false;
userData->user[usrIdx].userPrivAccess[chIndex].accessCallback = false;
}
userData->user[usrIdx].userInSystem = false;
userData->user[usrIdx].userEnabled = false;
return;
}
void UserAccess::checkAndReloadUserData()
{
std::timespec updateTime = getUpdatedFileTime();
if ((updateTime.tv_sec != fileLastUpdatedTime.tv_sec ||
updateTime.tv_nsec != fileLastUpdatedTime.tv_nsec) ||
(updateTime.tv_sec == 0 && updateTime.tv_nsec == 0))
{
std::fill(reinterpret_cast<uint8_t*>(&usersTbl),
reinterpret_cast<uint8_t*>(&usersTbl) + sizeof(usersTbl), 0);
readUserData();
}
return;
}
UsersTbl* UserAccess::getUsersTblPtr()
{
// reload data before using it.
checkAndReloadUserData();
return &usersTbl;
}
void UserAccess::getSystemPrivAndGroups()
{
std::map<std::string, PrivAndGroupType> properties;
try
{
auto method = bus.new_method_call(
getUserServiceName().c_str(), userMgrObjBasePath,
dBusPropertiesInterface, getAllPropertiesMethod);
method.append(userMgrInterface);
auto reply = bus.call(method);
reply.read(properties);
}
catch (const sdbusplus::exception::exception& e)
{
log<level::DEBUG>("Failed to excute method",
entry("METHOD=%s", getAllPropertiesMethod),
entry("PATH=%s", userMgrObjBasePath));
return;
}
for (const auto& t : properties)
{
auto key = t.first;
if (key == allPrivProperty)
{
availablePrivileges = std::get<std::vector<std::string>>(t.second);
}
else if (key == allGrpProperty)
{
availableGroups = std::get<std::vector<std::string>>(t.second);
}
}
// TODO: Implement Supported Privilege & Groups verification logic
return;
}
std::timespec UserAccess::getUpdatedFileTime()
{
struct stat fileStat;
if (stat(ipmiUserDataFile, &fileStat) != 0)
{
log<level::DEBUG>("Error in getting last updated time stamp");
return std::timespec{0, 0};
}
return fileStat.st_mtim;
}
void UserAccess::getUserProperties(const DbusUserObjProperties& properties,
std::vector<std::string>& usrGrps,
std::string& usrPriv, bool& usrEnabled)
{
for (const auto& t : properties)
{
std::string key = t.first;
if (key == userPrivProperty)
{
usrPriv = std::get<std::string>(t.second);
}
else if (key == userGrpProperty)
{
usrGrps = std::get<std::vector<std::string>>(t.second);
}
else if (key == userEnabledProperty)
{
usrEnabled = std::get<bool>(t.second);
}
}
return;
}
int UserAccess::getUserObjProperties(const DbusUserObjValue& userObjs,
std::vector<std::string>& usrGrps,
std::string& usrPriv, bool& usrEnabled)
{
auto usrObj = userObjs.find(usersInterface);
if (usrObj != userObjs.end())
{
getUserProperties(usrObj->second, usrGrps, usrPriv, usrEnabled);
return 0;
}
return -EIO;
}
void UserAccess::cacheUserDataFile()
{
boost::interprocess::scoped_lock<boost::interprocess::named_recursive_mutex>
userLock{*userMutex};
try
{
readUserData();
}
catch (const std::ios_base::failure& e)
{ // File is empty, create it for the first time
std::fill(reinterpret_cast<uint8_t*>(&usersTbl),
reinterpret_cast<uint8_t*>(&usersTbl) + sizeof(usersTbl), 0);
// user index 0 is reserved, starts with 1
for (size_t userIndex = 1; userIndex <= ipmiMaxUsers; ++userIndex)
{
for (size_t chIndex = 0; chIndex < ipmiMaxChannels; ++chIndex)
{
usersTbl.user[userIndex].userPrivAccess[chIndex].privilege =
privNoAccess;
usersTbl.user[userIndex]
.payloadAccess[chIndex]
.stdPayloadEnables1[static_cast<uint8_t>(
ipmi::PayloadType::SOL)] = true;
}
}
writeUserData();
}
// Create lock file if it does not exist
int fd = open(ipmiUserSignalLockFile, O_CREAT | O_TRUNC | O_SYNC,
S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
if (fd < 0)
{
log<level::ERR>("Error in creating IPMI user signal lock file");
throw std::ios_base::failure(
"Error in creating temporary IPMI user signal lock file");
}
close(fd);
sigHndlrLock = boost::interprocess::file_lock(ipmiUserSignalLockFile);
// Register it for single object and single process either netipimd /
// host-ipmid
if (userUpdatedSignal == nullptr && sigHndlrLock.try_lock())
{
log<level::DEBUG>("Registering signal handler");
userUpdatedSignal = std::make_unique<sdbusplus::bus::match_t>(
bus,
sdbusplus::bus::match::rules::type::signal() +
sdbusplus::bus::match::rules::interface(dBusObjManager) +
sdbusplus::bus::match::rules::path(userMgrObjBasePath),
[&](sdbusplus::message::message& msg) {
userUpdatedSignalHandler(*this, msg);
});
userMgrRenamedSignal = std::make_unique<sdbusplus::bus::match_t>(
bus,
sdbusplus::bus::match::rules::type::signal() +
sdbusplus::bus::match::rules::interface(userMgrInterface) +
sdbusplus::bus::match::rules::path(userMgrObjBasePath),
[&](sdbusplus::message::message& msg) {
userUpdatedSignalHandler(*this, msg);
});
userPropertiesSignal = std::make_unique<sdbusplus::bus::match_t>(
bus,
sdbusplus::bus::match::rules::type::signal() +
sdbusplus::bus::match::rules::path_namespace(userObjBasePath) +
sdbusplus::bus::match::rules::interface(
dBusPropertiesInterface) +
sdbusplus::bus::match::rules::member(propertiesChangedSignal) +
sdbusplus::bus::match::rules::argN(0, usersInterface),
[&](sdbusplus::message::message& msg) {
userUpdatedSignalHandler(*this, msg);
});
signalHndlrObject = true;
}
std::map<DbusUserObjPath, DbusUserObjValue> managedObjs;
try
{
auto method = bus.new_method_call(getUserServiceName().c_str(),
userMgrObjBasePath, dBusObjManager,
getManagedObjectsMethod);
auto reply = bus.call(method);
reply.read(managedObjs);
}
catch (const sdbusplus::exception::exception& e)
{
log<level::DEBUG>("Failed to excute method",
entry("METHOD=%s", getSubTreeMethod),
entry("PATH=%s", userMgrObjBasePath));
return;
}
bool updateRequired = false;
UsersTbl* userData = &usersTbl;
// user index 0 is reserved, starts with 1
for (size_t usrIdx = 1; usrIdx <= ipmiMaxUsers; ++usrIdx)
{
if ((userData->user[usrIdx].userInSystem) &&
(userData->user[usrIdx].userName[0] != '\0'))
{
std::vector<std::string> usrGrps;
std::string usrPriv;
std::string userName(
reinterpret_cast<char*>(userData->user[usrIdx].userName), 0,
ipmiMaxUserName);
sdbusplus::message::object_path tempUserPath(userObjBasePath);
tempUserPath /= userName;
std::string usersPath(tempUserPath);
auto usrObj = managedObjs.find(usersPath);
if (usrObj != managedObjs.end())
{
bool usrEnabled = false;
// User exist. Lets check and update other fileds
getUserObjProperties(usrObj->second, usrGrps, usrPriv,
usrEnabled);
if (std::find(usrGrps.begin(), usrGrps.end(), ipmiGrpName) ==
usrGrps.end())
{
updateRequired = true;
// Group "ipmi" is removed so lets remove user in IPMI
deleteUserIndex(usrIdx);
}
else
{
// Group "ipmi" is present so lets update other properties
// in IPMI
uint8_t priv =
UserAccess::convertToIPMIPrivilege(usrPriv) & privMask;
// Update all channels priv, only if it is not equivalent to
// getUsrMgmtSyncIndex()
if (userData->user[usrIdx]
.userPrivAccess[getUsrMgmtSyncIndex()]
.privilege != priv)
{
updateRequired = true;
for (size_t chIndex = 0; chIndex < ipmiMaxChannels;
++chIndex)
{
userData->user[usrIdx]
.userPrivAccess[chIndex]
.privilege = priv;
}
}
if (userData->user[usrIdx].userEnabled != usrEnabled)
{
updateRequired = true;
userData->user[usrIdx].userEnabled = usrEnabled;
}
}
// We are done with this obj. lets delete from MAP
managedObjs.erase(usrObj);
}
else
{
updateRequired = true;
deleteUserIndex(usrIdx);
}
}
}
// Walk through remnaining managedObj users list
// Add them to ipmi data base
for (const auto& usrObj : managedObjs)
{
std::vector<std::string> usrGrps;
std::string usrPriv, userName;
bool usrEnabled = false;
std::string usrObjPath = std::string(usrObj.first);
if (getUserNameFromPath(usrObj.first.str, userName) != 0)
{
log<level::ERR>("Error in user object path");
continue;
}
getUserObjProperties(usrObj.second, usrGrps, usrPriv, usrEnabled);
// Add 'ipmi' group users
if (std::find(usrGrps.begin(), usrGrps.end(), ipmiGrpName) !=
usrGrps.end())
{
updateRequired = true;
// CREATE NEW USER
if (true != addUserEntry(userName, usrPriv, usrEnabled))
{
break;
}
}
}
if (updateRequired)
{
// All userData slots update done. Lets write the data
writeUserData();
}
return;
}
} // namespace ipmi