blob: 38fe673da46d202daed97244d9842e69069d0c54 [file] [log] [blame]
#include "config.h"
#include "network_manager.hpp"
#include "rtnetlink_server.hpp"
#include "types.hpp"
#include "watch.hpp"
#include <linux/netlink.h>
#include <filesystem>
#include <fstream>
#include <functional>
#include <memory>
#include <nlohmann/json.hpp>
#include <phosphor-logging/elog-errors.hpp>
#include <phosphor-logging/log.hpp>
#include <sdbusplus/bus.hpp>
#include <sdbusplus/bus/match.hpp>
#include <sdbusplus/server/manager.hpp>
#include <sdeventplus/event.hpp>
#include <xyz/openbmc_project/Common/error.hpp>
using phosphor::logging::elog;
using phosphor::logging::entry;
using phosphor::logging::level;
using phosphor::logging::log;
using sdbusplus::xyz::openbmc_project::Common::Error::InternalFailure;
using DbusObjectPath = std::string;
using DbusInterface = std::string;
using PropertyValue = std::string;
constexpr char NETWORK_CONF_DIR[] = "/etc/systemd/network";
constexpr char DEFAULT_OBJPATH[] = "/xyz/openbmc_project/network";
constexpr auto firstBootPath = "/var/lib/network/firstBoot_";
constexpr auto configFile = "/usr/share/network/config.json";
constexpr auto invNetworkIntf =
"xyz.openbmc_project.Inventory.Item.NetworkInterface";
namespace phosphor
{
namespace network
{
std::unique_ptr<phosphor::network::Manager> manager = nullptr;
std::unique_ptr<Timer> refreshObjectTimer = nullptr;
std::unique_ptr<Timer> restartTimer = nullptr;
#ifdef SYNC_MAC_FROM_INVENTORY
std::unique_ptr<sdbusplus::bus::match::match> EthInterfaceMatch = nullptr;
std::vector<std::string> first_boot_status;
bool setInventoryMACOnSystem(sdbusplus::bus::bus& bus,
const nlohmann::json& configJson,
const std::string& intfname)
{
try
{
auto inventoryMAC = mac_address::getfromInventory(bus, intfname);
if (!mac_address::toString(inventoryMAC).empty())
{
log<level::INFO>("Mac Address in Inventory on "),
entry("Interface : ", intfname.c_str()),
entry("MAC Address :",
(mac_address::toString(inventoryMAC)).c_str());
manager->setFistBootMACOnInterface(std::make_pair(
intfname.c_str(), mac_address::toString(inventoryMAC)));
first_boot_status.push_back(intfname.c_str());
bool status = true;
for (const auto& keys : configJson.items())
{
if (!(std::find(first_boot_status.begin(),
first_boot_status.end(),
keys.key()) != first_boot_status.end()))
{
log<level::INFO>("Interface MAC is NOT set from VPD"),
entry("INTERFACE", keys.key().c_str());
status = false;
}
}
if (status)
{
log<level::INFO>("Removing the match for ethernet interfaces");
phosphor::network::EthInterfaceMatch = nullptr;
}
}
else
{
log<level::INFO>("Nothing is present in Inventory");
return false;
}
}
catch (const std::exception& e)
{
log<level::ERR>("Exception occurred during getting of MAC "
"address from Inventory");
return false;
}
return true;
}
// register the macthes to be monitored from inventory manager
void registerSignals(sdbusplus::bus::bus& bus, const nlohmann::json& configJson)
{
log<level::INFO>("Registering the Inventory Signals Matcher");
static std::unique_ptr<sdbusplus::bus::match::match> MacAddressMatch;
auto callback = [&](sdbusplus::message::message& m) {
std::map<DbusObjectPath,
std::map<DbusInterface, std::variant<PropertyValue>>>
interfacesProperties;
sdbusplus::message::object_path objPath;
std::pair<std::string, std::string> ethPair;
m.read(objPath, interfacesProperties);
for (const auto& pattern : configJson.items())
{
if (objPath.str.find(pattern.value()) != std::string::npos)
{
for (auto& interface : interfacesProperties)
{
if (interface.first == invNetworkIntf)
{
for (const auto& property : interface.second)
{
if (property.first == "MACAddress")
{
ethPair = std::make_pair(
pattern.key(),
std::get<std::string>(property.second));
break;
}
}
break;
}
}
if (!(ethPair.first.empty() || ethPair.second.empty()))
{
manager->setFistBootMACOnInterface(ethPair);
}
}
}
};
MacAddressMatch = std::make_unique<sdbusplus::bus::match::match>(
bus,
"interface='org.freedesktop.DBus.ObjectManager',type='signal',"
"member='InterfacesAdded',path='/xyz/openbmc_project/"
"inventory'",
callback);
}
void watchEthernetInterface(sdbusplus::bus::bus& bus,
const nlohmann::json& configJson)
{
auto mycallback = [&](sdbusplus::message::message& m) {
std::map<DbusObjectPath,
std::map<DbusInterface, std::variant<PropertyValue>>>
interfacesProperties;
sdbusplus::message::object_path objPath;
std::pair<std::string, std::string> ethPair;
m.read(objPath, interfacesProperties);
for (const auto& interfaces : interfacesProperties)
{
if (interfaces.first ==
"xyz.openbmc_project.Network.EthernetInterface")
{
for (const auto& property : interfaces.second)
{
if (property.first == "InterfaceName")
{
std::string infname =
std::get<std::string>(property.second);
if (configJson.find(infname) == configJson.end())
{
// ethernet interface not found in configJSON
// check if it is not sit0 interface, as it is
// expected.
if (infname != "sit0")
{
log<level::ERR>(
"Wrong Interface Name in Config Json");
}
}
else
{
if (!phosphor::network::setInventoryMACOnSystem(
bus, configJson, infname))
{
phosphor::network::registerSignals(bus,
configJson);
phosphor::network::EthInterfaceMatch = nullptr;
}
}
break;
}
}
break;
}
}
};
// Incase if phosphor-inventory-manager started early and the VPD is already
// collected by the time network service has come up, better to check the
// VPD directly and set the MAC Address on the respective Interface.
bool registeredSignals = false;
for (const auto& interfaceString : configJson.items())
{
if (!std::filesystem::exists(firstBootPath + interfaceString.key()) &&
!registeredSignals)
{
log<level::INFO>(
"First boot file is not present, check VPD for MAC");
phosphor::network::EthInterfaceMatch = std::make_unique<
sdbusplus::bus::match::match>(
bus,
"interface='org.freedesktop.DBus.ObjectManager',type='signal',"
"member='InterfacesAdded',path='/xyz/openbmc_project/network'",
mycallback);
registeredSignals = true;
}
}
}
#endif
/** @brief refresh the network objects. */
void refreshObjects()
{
if (manager)
{
log<level::INFO>("Refreshing the objects.");
manager->createChildObjects();
log<level::INFO>("Refreshing complete.");
}
}
/** @brief restart the systemd networkd. */
void restartNetwork()
{
if (manager)
{
manager->restartSystemdUnit("systemd-networkd.service");
}
}
void initializeTimers()
{
auto event = sdeventplus::Event::get_default();
refreshObjectTimer =
std::make_unique<Timer>(event, std::bind(refreshObjects));
restartTimer = std::make_unique<Timer>(event, std::bind(restartNetwork));
}
} // namespace network
} // namespace phosphor
void createNetLinkSocket(phosphor::Descriptor& smartSock)
{
// RtnetLink socket
auto fd = socket(PF_NETLINK, SOCK_RAW | SOCK_NONBLOCK, NETLINK_ROUTE);
if (fd < 0)
{
log<level::ERR>("Unable to create the net link socket",
entry("ERRNO=%d", errno));
elog<InternalFailure>();
}
smartSock.set(fd);
}
int main(int /*argc*/, char** /*argv*/)
{
phosphor::network::initializeTimers();
auto bus = sdbusplus::bus::new_default();
// Need sd_event to watch for OCC device errors
sd_event* event = nullptr;
auto r = sd_event_default(&event);
if (r < 0)
{
log<level::ERR>("Error creating a default sd_event handler");
return r;
}
phosphor::network::EventPtr eventPtr{event};
event = nullptr;
// Attach the bus to sd_event to service user requests
bus.attach_event(eventPtr.get(), SD_EVENT_PRIORITY_NORMAL);
// Add sdbusplus Object Manager for the 'root' path of the network manager.
sdbusplus::server::manager::manager objManager(bus, DEFAULT_OBJPATH);
bus.request_name(DEFAULT_BUSNAME);
phosphor::network::manager = std::make_unique<phosphor::network::Manager>(
bus, DEFAULT_OBJPATH, NETWORK_CONF_DIR);
// create the default network files if the network file
// is not there for any interface.
// Parameter false means don't create the network
// files forcefully.
if (phosphor::network::manager->createDefaultNetworkFiles(false))
{
// if files created restart the network.
// don't need to call the create child objects as eventhandler
// will create it.
phosphor::network::restartNetwork();
}
else
{
// this will add the additional fixes which is needed
// in the existing network file.
phosphor::network::manager->writeToConfigurationFile();
// whenever the configuration file gets written it restart
// the network which creates the network objects
}
// RtnetLink socket
phosphor::Descriptor smartSock;
createNetLinkSocket(smartSock);
// RTNETLINK event handler
phosphor::network::rtnetlink::Server svr(eventPtr, smartSock);
#ifdef SYNC_MAC_FROM_INVENTORY
std::ifstream in(configFile);
nlohmann::json configJson;
in >> configJson;
phosphor::network::watchEthernetInterface(bus, configJson);
#endif
sd_event_loop(eventPtr.get());
}