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command_table.cpp
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command_table.cpp
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#include "command_table.hpp"
#include "main.hpp"
#include "message_handler.hpp"
#include "message_parsers.hpp"
#include "sessions_manager.hpp"
#include <ipmid/types.hpp>
#include <main.hpp>
#include <phosphor-logging/lg2.hpp>
#include <user_channel/user_layer.hpp>
#include <iomanip>
namespace command
{
void Table::registerCommand(CommandID inCommand, std::unique_ptr<Entry>&& entry)
{
auto& command = commandTable[inCommand.command];
if (command)
{
lg2::debug("Already Registered: {COMMAND}", "COMMAND",
inCommand.command);
return;
}
command = std::move(entry);
}
void Table::executeCommand(uint32_t inCommand,
std::vector<uint8_t>& commandData,
std::shared_ptr<message::Handler> handler)
{
using namespace std::chrono_literals;
auto iterator = commandTable.find(inCommand);
if (iterator == commandTable.end())
{
CommandID command(inCommand);
// Do not forward any session zero commands to ipmid
if (handler->sessionID == session::sessionZero)
{
lg2::info(
"Table: refuse to forward session-zero command: lun: {LUN}, netFn: {NETFN}, command: {COMMAND}",
"LUN", command.lun(), "NETFN", command.netFn(), "COMMAND",
command.cmd());
return;
}
std::shared_ptr<session::Session> session =
session::Manager::get().getSession(handler->sessionID);
// Ignore messages that are not part of an active session
auto state = static_cast<session::State>(session->state());
if (state != session::State::active)
{
return;
}
auto bus = getSdBus();
// forward the request onto the main ipmi queue
using IpmiDbusRspType = std::tuple<uint8_t, uint8_t, uint8_t, uint8_t,
std::vector<uint8_t>>;
uint8_t lun = command.lun();
uint8_t netFn = command.netFn();
uint8_t cmd = command.cmd();
std::map<std::string, ipmi::Value> options = {
{"userId", ipmi::Value(static_cast<int>(
ipmi::ipmiUserGetUserId(session->userName)))},
{"privilege",
ipmi::Value(static_cast<int>(session->currentPrivilege()))},
{"currentSessionId",
ipmi::Value(static_cast<uint32_t>(session->getBMCSessionID()))},
};
bus->async_method_call(
[handler, this](const boost::system::error_code& ec,
const IpmiDbusRspType& response) {
if (!ec)
{
const uint8_t& cc = std::get<3>(response);
const std::vector<uint8_t>& responseData =
std::get<4>(response);
std::vector<uint8_t> payload;
payload.reserve(1 + responseData.size());
payload.push_back(cc);
payload.insert(payload.end(), responseData.begin(),
responseData.end());
handler->outPayload = std::move(payload);
}
else
{
std::vector<uint8_t> payload;
payload.push_back(IPMI_CC_UNSPECIFIED_ERROR);
handler->outPayload = std::move(payload);
}
},
"xyz.openbmc_project.Ipmi.Host", "/xyz/openbmc_project/Ipmi",
"xyz.openbmc_project.Ipmi.Server", "execute", netFn, lun, cmd,
commandData, options);
}
else
{
auto start = std::chrono::steady_clock::now();
// Ignore messages that are not part of an active/pre-active session
if (handler->sessionID != session::sessionZero)
{
std::shared_ptr<session::Session> session =
session::Manager::get().getSession(handler->sessionID);
auto state = static_cast<session::State>(session->state());
if ((state != session::State::setupInProgress) &&
(state != session::State::active))
{
return;
}
}
handler->outPayload =
iterator->second->executeCommand(commandData, handler);
auto end = std::chrono::steady_clock::now();
std::chrono::duration<size_t> elapsedSeconds =
std::chrono::duration_cast<std::chrono::seconds>(end - start);
// If command time execution time exceeds 2 seconds, log a time
// exceeded message
if (elapsedSeconds > 2s)
{
lg2::error("IPMI command timed out: {DELAY}", "DELAY",
elapsedSeconds.count());
}
}
}
std::vector<uint8_t>
NetIpmidEntry::executeCommand(std::vector<uint8_t>& commandData,
std::shared_ptr<message::Handler> handler)
{
std::vector<uint8_t> errResponse;
// Check if the command qualifies to be run prior to establishing a session
if (!sessionless && (handler->sessionID == session::sessionZero))
{
errResponse.resize(1);
errResponse[0] = IPMI_CC_INSUFFICIENT_PRIVILEGE;
lg2::info(
"Table: Insufficient privilege for command: lun: {LUN}, netFn: {NETFN}, command: {COMMAND}",
"LUN", command.lun(), "NETFN", command.netFn(), "COMMAND",
command.cmd());
return errResponse;
}
return functor(commandData, handler);
}
} // namespace command