blob: 89925b25bd996edceb7f015a30887049040a7b82 [file] [log] [blame]
#include "config.h"
#include "network_manager.hpp"
#include "ipaddress.hpp"
#include "network_config.hpp"
#include "types.hpp"
#include "util.hpp"
#include <arpa/inet.h>
#include <dirent.h>
#include <net/if.h>
#include <algorithm>
#include <bitset>
#include <filesystem>
#include <fstream>
#include <map>
#include <phosphor-logging/elog-errors.hpp>
#include <phosphor-logging/log.hpp>
#include <string>
#include <xyz/openbmc_project/Common/error.hpp>
constexpr char SYSTEMD_BUSNAME[] = "org.freedesktop.systemd1";
constexpr char SYSTEMD_PATH[] = "/org/freedesktop/systemd1";
constexpr char SYSTEMD_INTERFACE[] = "org.freedesktop.systemd1.Manager";
constexpr auto FirstBootFile = "/var/lib/network/firstBoot_";
constexpr char NETWORKD_BUSNAME[] = "org.freedesktop.network1";
constexpr char NETWORKD_PATH[] = "/org/freedesktop/network1";
constexpr char NETWORKD_INTERFACE[] = "org.freedesktop.network1.Manager";
namespace phosphor
{
namespace network
{
extern std::unique_ptr<Timer> refreshObjectTimer;
extern std::unique_ptr<Timer> reloadTimer;
using namespace phosphor::logging;
using namespace sdbusplus::xyz::openbmc_project::Common::Error;
using Argument = xyz::openbmc_project::Common::InvalidArgument;
Manager::Manager(sdbusplus::bus_t& bus, const char* objPath,
const std::string& path) :
details::VLANCreateIface(bus, objPath,
details::VLANCreateIface::action::defer_emit),
bus(bus), objectPath(objPath)
{
fs::path confDir(path);
setConfDir(confDir);
}
bool Manager::createDefaultNetworkFiles(bool force)
{
auto isCreated = false;
try
{
// Directory would have created before with
// setConfDir function.
if (force)
{
// Factory Reset case
// we need to forcefully write the files
// so delete the existing ones.
if (fs::is_directory(confDir))
{
for (const auto& file : fs::directory_iterator(confDir))
{
fs::remove(file.path());
}
}
}
auto interfaceStrList = getInterfaces();
for (const auto& interface : interfaceStrList)
{
// if the interface has '.' in the name, it means that this is a
// VLAN - don't create the network file.
if (interface.find(".") != std::string::npos)
{
continue;
}
auto fileName = systemd::config::networkFilePrefix + interface +
systemd::config::networkFileSuffix;
fs::path filePath = confDir;
filePath /= fileName;
// create the interface specific network file
// if not exist or we forcefully wants to write
// the network file.
if (force || !fs::is_regular_file(filePath.string()))
{
bmc::writeDHCPDefault(filePath.string(), interface);
log<level::INFO>("Created the default network file.",
entry("INTERFACE=%s", interface.c_str()));
isCreated = true;
}
}
}
catch (const std::exception& e)
{
log<level::ERR>("Unable to create the default network file");
}
return isCreated;
}
void Manager::setConfDir(const fs::path& dir)
{
confDir = dir;
if (!fs::exists(confDir))
{
if (!fs::create_directories(confDir))
{
log<level::ERR>("Unable to create the network conf dir",
entry("DIR=%s", confDir.c_str()));
elog<InternalFailure>();
}
}
}
void Manager::createInterfaces()
{
// clear all the interfaces first
interfaces.clear();
auto interfaceStrList = getInterfaces();
for (auto& interface : interfaceStrList)
{
fs::path objPath = objectPath;
auto index = interface.find(".");
// interface can be of vlan type or normal ethernet interface.
// vlan interface looks like "interface.vlanid",so here by looking
// at the interface name we decide that we need
// to create the vlaninterface or normal physical interface.
if (index != std::string::npos)
{
// it is vlan interface
auto interfaceName = interface.substr(0, index);
auto vlanid = interface.substr(index + 1);
uint32_t vlanInt = std::stoul(vlanid);
interfaces[interfaceName]->loadVLAN(vlanInt);
continue;
}
// normal ethernet interface
objPath /= interface;
auto dhcp = getDHCPValue(confDir, interface);
auto intf = std::make_shared<phosphor::network::EthernetInterface>(
bus, objPath.string(), dhcp, *this);
intf->createIPAddressObjects();
intf->createStaticNeighborObjects();
intf->loadNameServers();
this->interfaces.emplace(
std::make_pair(std::move(interface), std::move(intf)));
}
}
void Manager::createChildObjects()
{
routeTable.refresh();
// creates the ethernet interface dbus object.
createInterfaces();
systemConf.reset(nullptr);
dhcpConf.reset(nullptr);
fs::path objPath = objectPath;
objPath /= "config";
// create the system conf object.
systemConf = std::make_unique<phosphor::network::SystemConfiguration>(
bus, objPath.string());
// create the dhcp conf object.
objPath /= "dhcp";
dhcpConf = std::make_unique<phosphor::network::dhcp::Configuration>(
bus, objPath.string(), *this);
}
ObjectPath Manager::vlan(IntfName interfaceName, uint32_t id)
{
if (!hasInterface(interfaceName))
{
using ResourceErr =
phosphor::logging::xyz::openbmc_project::Common::ResourceNotFound;
elog<ResourceNotFound>(ResourceErr::RESOURCE(interfaceName.c_str()));
}
if (id == 0 || id >= 4095)
{
log<level::ERR>("VLAN ID is not valid", entry("VLANID=%u", id));
elog<InvalidArgument>(
Argument::ARGUMENT_NAME("VLANId"),
Argument::ARGUMENT_VALUE(std::to_string(id).c_str()));
}
return interfaces[interfaceName]->createVLAN(id);
}
void Manager::reset()
{
if (!createDefaultNetworkFiles(true))
{
log<level::ERR>("Network Factory Reset failed.");
return;
// TODO: openbmc/openbmc#1721 - Log ResetFailed error here.
}
log<level::INFO>("Network Factory Reset done.");
}
// Need to merge the below function with the code which writes the
// config file during factory reset.
// TODO openbmc/openbmc#1751
void Manager::writeToConfigurationFile()
{
// write all the static ip address in the systemd-network conf file
for (const auto& intf : interfaces)
{
intf.second->writeConfigurationFile();
}
}
#ifdef SYNC_MAC_FROM_INVENTORY
void Manager::setFistBootMACOnInterface(
const std::pair<std::string, std::string>& inventoryEthPair)
{
for (const auto& interface : interfaces)
{
if (interface.first == inventoryEthPair.first)
{
auto returnMAC =
interface.second->macAddress(inventoryEthPair.second);
if (returnMAC == inventoryEthPair.second)
{
log<level::INFO>("Set the MAC on "),
entry("interface : ", interface.first.c_str()),
entry("MAC : ", inventoryEthPair.second.c_str());
std::error_code ec;
if (std::filesystem::is_directory("/var/lib/network", ec))
{
std::ofstream persistentFile(FirstBootFile +
interface.first);
}
break;
}
else
{
log<level::INFO>("MAC is Not Set on ethernet Interface");
}
}
}
}
#endif
void Manager::reloadConfigs()
{
reloadTimer->restartOnce(reloadTimeout);
// Ensure that the next refresh happens after reconfiguration
refreshObjectTimer->setRemaining(reloadTimeout + refreshTimeout);
}
void Manager::doReloadConfigs()
{
for (auto& hook : reloadPreHooks)
{
try
{
hook();
}
catch (const std::exception& ex)
{
log<level::ERR>("Failed executing reload hook, ignoring",
entry("ERR=%s", ex.what()));
}
}
reloadPreHooks.clear();
try
{
auto method = bus.new_method_call(NETWORKD_BUSNAME, NETWORKD_PATH,
NETWORKD_INTERFACE, "Reload");
bus.call_noreply(method);
}
catch (const sdbusplus::exception_t& ex)
{
log<level::ERR>("Failed to reload configuration",
entry("ERR=%s", ex.what()));
elog<InternalFailure>();
}
// Ensure reconfiguration has enough time
refreshObjectTimer->setRemaining(refreshTimeout);
}
} // namespace network
} // namespace phosphor