blob: 24f35689eeb2d328f445bee62a55132bdde1e674 [file] [log] [blame]
#include "config.h"
#include "config_parser.hpp"
#include "util.hpp"
#include "network_manager.hpp"
#include "network_config.hpp"
#include "ipaddress.hpp"
#include "xyz/openbmc_project/Common/error.hpp"
#include <phosphor-logging/log.hpp>
#include <phosphor-logging/elog-errors.hpp>
#include <algorithm>
#include <bitset>
#include <map>
#include <fstream>
#include <arpa/inet.h>
#include <dirent.h>
#include <net/if.h>
#include <string>
namespace phosphor
{
namespace network
{
using namespace phosphor::logging;
using namespace sdbusplus::xyz::openbmc_project::Common::Error;
Manager::Manager(sdbusplus::bus::bus& bus, const char* objPath,
const std::string& path):
details::VLANCreateIface(bus, objPath, true),
bus(bus),
objectPath(objPath)
{
fs::path confDir(path);
setConfDir(confDir);
}
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 interfaceInfoList = getInterfaceAddrs();
for (const auto& intfInfo : interfaceInfoList)
{
fs::path objPath = objectPath;
objPath /= intfInfo.first;
auto dhcp = getDHCPValue(intfInfo.first);
this->interfaces.emplace(std::make_pair(
intfInfo.first,
std::make_unique<
phosphor::network::EthernetInterface>
(bus,
objPath.string(),
dhcp,
*this)));
}
}
void Manager::createChildObjects()
{
// creates the ethernet interface dbus object.
createInterfaces();
// create the system conf object.
fs::path objPath = objectPath;
objPath /= "config";
systemConf = std::make_unique<phosphor::network::SystemConfiguration>(
bus, objPath.string(), *this);
// create the dhcp conf object.
objPath /= "dhcp";
dhcpConf = std::make_unique<phosphor::network::dhcp::Configuration>(
bus, objPath.string(), *this);
}
void Manager::vLAN(IntfName interfaceName, uint32_t id)
{
auto& intf = interfaces[interfaceName];
intf->createVLAN(id);
writeToConfigurationFile();
}
void Manager::reset()
{
const std::string networkConfig = "/etc/systemd/network/";
bool filesExist, interfacesMapped = false;
if(fs::is_directory(networkConfig))
{
for(auto& file : fs::directory_iterator(networkConfig))
{
std::string filename = file.path().filename().c_str();
if(filename.substr(filename.find_last_of(".") + 1) == "network")
{
fs::remove(file.path());
filesExist = true;
}
}
if(!filesExist)
{
log<level::INFO>("No existing network configuration was found.");
}
for (auto& intf : interfaces)
{
std::string filename = networkConfig + "00-bmc-" + intf.first +
".network";
bmc::writeDHCPDefault(filename, intf.first);
interfacesMapped = true;
}
if(interfacesMapped)
{
log<level::INFO>("Network configuration reset to DHCP.");
}
else
{
log<level::ERR>("No network interfaces are mapped.");
// TODO: openbmc/openbmc#1721 - Log ResetFailed error here.
}
}
else
{
log<level::ERR>("Network configuration directory not found!");
// TODO: openbmc/openbmc#1721 - Log ResetFailed error here.
}
return;
}
// 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
using namespace std::string_literals;
using AddressOrigin =
sdbusplus::xyz::openbmc_project::Network::server::IP::AddressOrigin;
namespace fs = std::experimental::filesystem;
for (const auto& intf : interfaces)
{
fs::path confPath = confDir;
std::string fileName = "00-bmc-"s + intf.first + ".network"s;
confPath /= fileName;
std::fstream stream;
stream.open(confPath.c_str(), std::fstream::out);
// Write the device
stream << "[" << "Match" << "]\n";
stream << "Name=" << intf.first << "\n";
auto addrs = intf.second->getAddresses();
// write the network section
stream << "[" << "Network" << "]\n";
// DHCP
if (intf.second->dHCPEnabled() == true)
{
// write the dhcp section if interface is
// configured as dhcp.
writeDHCPSection(stream);
stream.close();
continue;
}
// Static
for (const auto& addr : addrs)
{
if (addr.second->origin() == AddressOrigin::Static)
{
std::string address = addr.second->address() + "/" + std::to_string(
addr.second->prefixLength());
stream << "Address=" << address << "\n";
if (addr.second->gateway() != "0.0.0.0" &&
addr.second->gateway() != "")
{
stream << "Gateway=" << addr.second->gateway() << "\n";
}
}
}
stream << "Gateway=" << systemConf->defaultGateway() << "\n";
// write the route section
stream << "[" << "Route" << "]\n";
for(const auto& addr : addrs)
{
if (addr.second->origin() == AddressOrigin::Static)
{
int addressFamily = addr.second->type() == IP::Protocol::IPv4 ? AF_INET : AF_INET6;
std::string destination = getNetworkID(
addressFamily,
addr.second->address(),
addr.second->prefixLength());
if (addr.second->gateway() != "0.0.0.0" &&
addr.second->gateway() != "" &&
destination != "0.0.0.0" &&
destination != "")
{
stream << "Gateway=" << addr.second->gateway() << "\n";
stream << "Destination=" << destination << "\n";
}
}
}
stream.close();
}
restartSystemdUnit("systemd-networkd.service");
}
void Manager::writeDHCPSection(std::fstream& stream)
{
using namespace std::string_literals;
stream << "DHCP=true\n";
// write the dhcp section
stream << "[DHCP]\n";
// Hardcoding the client identifier to mac, to address below issue
// https://github.com/openbmc/openbmc/issues/1280
stream << "ClientIdentifier=mac\n";
auto value = dhcpConf->dNSEnabled() ? "true"s : "false"s;
stream << "UseDNS="s + value + "\n";
value = dhcpConf->nTPEnabled() ? "true"s : "false"s;
stream << "UseNTP="s + value + "\n";
value = dhcpConf->hostNameEnabled() ? "true"s : "false"s;
stream << "UseHostname="s + value + "\n";
}
bool Manager::getDHCPValue(const std::string& intf)
{
bool dhcp = false;
// Get the interface mode value from systemd conf
using namespace std::string_literals;
fs::path confPath = confDir;
std::string fileName = "00-bmc-"s + intf + ".network"s;
confPath /= fileName;
try
{
config::Parser parser(confPath.string());
auto values = parser.getValues("Network","DHCP");
// There will be only single value for DHCP key.
if (values[0] == "true")
{
dhcp = true;
}
}
catch (InternalFailure& e)
{
log<level::INFO>("Exception occured during getting of DHCP value");
}
return dhcp;
}
}//namespace network
}//namespace phosphor