blob: 76542d739ca85c78e467aeaf92d20a7f3b5eea64 [file] [log] [blame]
#include <iostream>
#include <map>
#include <string>
#include <systemd/sd-bus.h>
#include <sdbusplus/server.hpp>
#include <phosphor-logging/log.hpp>
#include "host_state_manager.hpp"
namespace phosphor
{
namespace state
{
namespace manager
{
// When you see server:: you know we're referencing our base class
namespace server = sdbusplus::xyz::openbmc_project::State::server;
using namespace phosphor::logging;
constexpr auto HOST_STATE_POWEROFF_TGT = "obmc-chassis-stop@0.target";
constexpr auto HOST_STATE_POWERON_TGT = "obmc-chassis-start@0.target";
constexpr auto HOST_STATE_QUIESCE_TGT = "obmc-quiesce-host@0.target";
/* Map a transition to it's systemd target */
const std::map<server::Host::Transition,std::string> SYSTEMD_TARGET_TABLE =
{
{server::Host::Transition::Off, HOST_STATE_POWEROFF_TGT},
{server::Host::Transition::On, HOST_STATE_POWERON_TGT}
};
constexpr auto SYSTEMD_SERVICE = "org.freedesktop.systemd1";
constexpr auto SYSTEMD_OBJ_PATH = "/org/freedesktop/systemd1";
constexpr auto SYSTEMD_INTERFACE = "org.freedesktop.systemd1.Manager";
constexpr auto SYSTEM_SERVICE = "org.openbmc.managers.System";
constexpr auto SYSTEM_OBJ_PATH = "/org/openbmc/managers/System";
constexpr auto SYSTEM_INTERFACE = SYSTEM_SERVICE;
constexpr auto MAPPER_BUSNAME = "xyz.openbmc_project.ObjectMapper";
constexpr auto MAPPER_PATH = "/xyz/openbmc_project/ObjectMapper";
constexpr auto MAPPER_INTERFACE = "xyz.openbmc_project.ObjectMapper";
/* Map a system state to the HostState */
const std::map<std::string, server::Host::HostState> SYS_HOST_STATE_TABLE = {
{"HOST_BOOTING", server::Host::HostState::Running},
{"HOST_POWERED_OFF", server::Host::HostState::Off}
};
void Host::subscribeToSystemdSignals()
{
auto method = this->bus.new_method_call(SYSTEMD_SERVICE,
SYSTEMD_OBJ_PATH,
SYSTEMD_INTERFACE,
"Subscribe");
this->bus.call_noreply(method);
return;
}
// TODO - Will be rewritten once sdbusplus client bindings are in place
// and persistent storage design is in place
void Host::determineInitialState()
{
std::string sysState;
auto method = this->bus.new_method_call(SYSTEM_SERVICE,
SYSTEM_OBJ_PATH,
SYSTEM_INTERFACE,
"getSystemState");
auto reply = this->bus.call(method);
reply.read(sysState);
if(sysState == "HOST_BOOTED")
{
log<level::INFO>("Initial Host State will be Running",
entry("CURRENT_HOST_STATE=%s",
convertForMessage(HostState::Running).c_str()));
server::Host::currentHostState(HostState::Running);
server::Host::requestedHostTransition(Transition::On);
}
else
{
log<level::INFO>("Initial Host State will be Off",
entry("CURRENT_HOST_STATE=%s",
convertForMessage(HostState::Off).c_str()));
server::Host::currentHostState(HostState::Off);
server::Host::requestedHostTransition(Transition::Off);
}
// Set transition initially to Off
// TODO - Eventually need to restore this from persistent storage
server::Host::requestedHostTransition(Transition::Off);
return;
}
void Host::executeTransition(Transition tranReq)
{
auto sysdUnit = SYSTEMD_TARGET_TABLE.find(tranReq)->second;
auto method = this->bus.new_method_call(SYSTEMD_SERVICE,
SYSTEMD_OBJ_PATH,
SYSTEMD_INTERFACE,
"StartUnit");
method.append(sysdUnit);
method.append("replace");
this->bus.call_noreply(method);
return;
}
bool Host::isAutoReboot()
{
sdbusplus::message::variant<std::string> autoRebootParam;
std::string strParam;
std::string HOST_PATH("/org/openbmc/settings/host0");
std::string HOST_INTERFACE("org.openbmc.settings.Host");
auto mapper = this->bus.new_method_call(MAPPER_BUSNAME,
MAPPER_PATH,
MAPPER_INTERFACE,
"GetObject");
mapper.append(HOST_PATH, std::vector<std::string>({HOST_INTERFACE}));
auto mapperResponseMsg = this->bus.call(mapper);
if (mapperResponseMsg.is_method_error())
{
log<level::ERR>("Error in mapper call");
return false;
}
std::map<std::string, std::vector<std::string>> mapperResponse;
mapperResponseMsg.read(mapperResponse);
if (mapperResponse.empty())
{
log<level::ERR>("Error reading mapper response");
return false;
}
const auto& host = mapperResponse.begin()->first;
auto method = this->bus.new_method_call(host.c_str(),
HOST_PATH.c_str(),
"org.freedesktop.DBus.Properties",
"Get");
method.append(HOST_INTERFACE.c_str(), "auto_reboot");
auto reply = this->bus.call(method);
if (reply.is_method_error())
{
log<level::ERR>("Error in auto_reboot Get");
return false;
}
reply.read(autoRebootParam);
strParam =
sdbusplus::message::variant_ns::get<std::string>(autoRebootParam);
if (strParam.empty())
{
log<level::ERR>("Error reading auto_reboot response");
return false;
}
if (strParam == "yes")
{
return true;
}
return false;
}
int Host::sysStateChangeSignal(sd_bus_message *msg, void *userData,
sd_bus_error *retError)
{
return static_cast<Host*>(userData)->sysStateChange(msg, retError);
}
int Host::sysStateChange(sd_bus_message* msg,
sd_bus_error* retError)
{
uint32_t newStateID {};
sdbusplus::message::object_path newStateObjPath;
std::string newStateUnit{};
std::string newStateResult{};
auto sdPlusMsg = sdbusplus::message::message(msg);
//Read the msg and populate each variable
sdPlusMsg.read(newStateID, newStateObjPath, newStateUnit, newStateResult);
if((newStateUnit == HOST_STATE_POWEROFF_TGT) &&
(newStateResult == "done"))
{
log<level::INFO>("Recieved signal that host is off");
this->currentHostState(server::Host::HostState::Off);
// Check if we need to start a new transition (i.e. a Reboot)
if(this->server::Host::requestedHostTransition() ==
Transition::Reboot)
{
log<level::DEBUG>("Reached intermediate state, going to next");
this->executeTransition(server::Host::Transition::On);
}
}
else if((newStateUnit == HOST_STATE_POWERON_TGT) &&
(newStateResult == "done"))
{
log<level::INFO>("Recieved signal that host is running");
this->currentHostState(server::Host::HostState::Running);
}
else if((newStateUnit == HOST_STATE_QUIESCE_TGT) &&
(newStateResult == "done"))
{
if (Host::isAutoReboot())
{
log<level::INFO>("Auto reboot enabled. Beginning reboot...");
Host::requestedHostTransition(server::Host::Transition::Reboot);
}
else
{
log<level::INFO>("Auto reboot disabled. Maintaining quiesce.");
}
}
return 0;
}
Host::Transition Host::requestedHostTransition(Transition value)
{
log<level::INFO>(
"Host State transaction request",
entry("REQUESTED_HOST_TRANSITION=%s",
convertForMessage(value).c_str()));
Transition tranReq = value;
if(value == server::Host::Transition::Reboot)
{
// On reboot requests we just need to do a off if we're on and
// vice versa. The handleSysStateChange() code above handles the
// second part of the reboot
if(this->server::Host::currentHostState() ==
server::Host::HostState::Off)
{
tranReq = server::Host::Transition::On;
}
else
{
tranReq = server::Host::Transition::Off;
}
}
executeTransition(tranReq);
return server::Host::requestedHostTransition(value);
}
Host::HostState Host::currentHostState(HostState value)
{
log<level::INFO>("Change to Host State",
entry("CURRENT_HOST_STATE=%s",
convertForMessage(value).c_str()));
return server::Host::currentHostState(value);
}
} // namespace manager
} // namespace state
} // namepsace phosphor