blob: 9350ff77ecf45f5a2340a6ae462356816a3b388d [file] [log] [blame]
#include "config.h"
#include "ethernet_interface.hpp"
#include "config_parser.hpp"
#include "network_manager.hpp"
#include "system_queries.hpp"
#include "util.hpp"
#include <fmt/compile.h>
#include <fmt/format.h>
#include <linux/if_addr.h>
#include <linux/neighbour.h>
#include <linux/rtnetlink.h>
#include <net/if.h>
#include <algorithm>
#include <filesystem>
#include <phosphor-logging/elog-errors.hpp>
#include <phosphor-logging/log.hpp>
#include <sdbusplus/bus/match.hpp>
#include <stdplus/raw.hpp>
#include <stdplus/zstring.hpp>
#include <string>
#include <unordered_map>
#include <variant>
#include <xyz/openbmc_project/Common/error.hpp>
namespace phosphor
{
namespace network
{
using namespace phosphor::logging;
using namespace sdbusplus::xyz::openbmc_project::Common::Error;
using NotAllowed = sdbusplus::xyz::openbmc_project::Common::Error::NotAllowed;
using NotAllowedArgument = xyz::openbmc_project::Common::NotAllowed;
using Argument = xyz::openbmc_project::Common::InvalidArgument;
using std::literals::string_view_literals::operator""sv;
constexpr auto RESOLVED_SERVICE = "org.freedesktop.resolve1";
constexpr auto RESOLVED_INTERFACE = "org.freedesktop.resolve1.Link";
constexpr auto PROPERTY_INTERFACE = "org.freedesktop.DBus.Properties";
constexpr auto RESOLVED_SERVICE_PATH = "/org/freedesktop/resolve1/link/";
constexpr auto TIMESYNCD_SERVICE = "org.freedesktop.timesync1";
constexpr auto TIMESYNCD_INTERFACE = "org.freedesktop.timesync1.Manager";
constexpr auto TIMESYNCD_SERVICE_PATH = "/org/freedesktop/timesync1";
constexpr auto METHOD_GET = "Get";
template <typename Func>
inline decltype(std::declval<Func>()())
ignoreError(std::string_view msg, stdplus::zstring_view intf,
decltype(std::declval<Func>()()) fallback, Func&& func) noexcept
{
try
{
return func();
}
catch (const std::exception& e)
{
auto err = fmt::format("{} failed on {}: {}", msg, intf, e.what());
log<level::ERR>(err.c_str(), entry("INTERFACE=%s", intf.c_str()));
}
return fallback;
}
static std::string makeObjPath(std::string_view root, std::string_view intf)
{
auto ret = fmt::format(FMT_COMPILE("{}/{}"), root, intf);
std::replace(ret.begin() + ret.size() - intf.size(), ret.end(), '.', '_');
return ret;
}
EthernetInterface::EthernetInterface(sdbusplus::bus_t& bus, Manager& manager,
const system::InterfaceInfo& info,
std::string_view objRoot,
const config::Parser& config,
bool emitSignal,
std::optional<bool> enabled) :
EthernetInterface(bus, manager, info, makeObjPath(objRoot, *info.name),
config, emitSignal, enabled)
{
}
EthernetInterface::EthernetInterface(sdbusplus::bus_t& bus, Manager& manager,
const system::InterfaceInfo& info,
std::string&& objPath,
const config::Parser& config,
bool emitSignal,
std::optional<bool> enabled) :
Ifaces(bus, objPath.c_str(),
emitSignal ? Ifaces::action::defer_emit
: Ifaces::action::emit_no_signals),
bus(bus), manager(manager), objPath(std::move(objPath)), ifIdx(info.idx)
{
interfaceName(*info.name);
auto dhcpVal = getDHCPValue(config);
EthernetInterfaceIntf::dhcp4(dhcpVal.v4);
EthernetInterfaceIntf::dhcp6(dhcpVal.v6);
EthernetInterfaceIntf::ipv6AcceptRA(getIPv6AcceptRA(config));
EthernetInterfaceIntf::nicEnabled(enabled ? *enabled : queryNicEnabled());
{
const auto& gws = manager.getRouteTable().getDefaultGateway();
auto it = gws.find(ifIdx);
if (it != gws.end())
{
EthernetInterfaceIntf::defaultGateway(std::to_string(it->second));
}
}
{
const auto& gws = manager.getRouteTable().getDefaultGateway6();
auto it = gws.find(ifIdx);
if (it != gws.end())
{
EthernetInterfaceIntf::defaultGateway6(std::to_string(it->second));
}
}
EthernetInterfaceIntf::ntpServers(
config.map.getValueStrings("Network", "NTP"));
if (ifIdx > 0)
{
auto ethInfo = ignoreError("GetEthInfo", *info.name, {}, [&] {
return system::getEthInfo(*info.name);
});
EthernetInterfaceIntf::autoNeg(ethInfo.autoneg);
EthernetInterfaceIntf::speed(ethInfo.speed);
}
updateInfo(info);
if (info.vlan_id)
{
if (!info.parent_idx)
{
std::runtime_error("Missing parent link");
}
vlan.emplace(bus, this->objPath.c_str(), info, *this, emitSignal);
}
// Emit deferred signal.
if (emitSignal)
{
this->emit_object_added();
}
}
void EthernetInterface::updateInfo(const system::InterfaceInfo& info)
{
EthernetInterfaceIntf::linkUp(info.flags & IFF_RUNNING);
if (info.mac)
{
MacAddressIntf::macAddress(std::to_string(*info.mac));
}
if (info.mtu)
{
EthernetInterfaceIntf::mtu(*info.mtu);
}
}
static IP::Protocol getProtocol(const InAddrAny& addr)
{
if (std::holds_alternative<in_addr>(addr))
{
return IP::Protocol::IPv4;
}
else if (std::holds_alternative<in6_addr>(addr))
{
return IP::Protocol::IPv6;
}
throw std::runtime_error("Invalid addr type");
}
bool EthernetInterface::dhcpIsEnabled(IP::Protocol family)
{
switch (family)
{
case IP::Protocol::IPv6:
return dhcp6();
case IP::Protocol::IPv4:
return dhcp4();
}
throw std::logic_error("Unreachable");
}
bool EthernetInterface::originIsManuallyAssigned(IP::AddressOrigin origin)
{
return (
#ifdef LINK_LOCAL_AUTOCONFIGURATION
(origin == IP::AddressOrigin::Static)
#else
(origin == IP::AddressOrigin::Static ||
origin == IP::AddressOrigin::LinkLocal)
#endif
);
}
void EthernetInterface::createIPAddressObjects()
{
addrs.clear();
AddressFilter filter;
filter.interface = ifIdx;
auto currentAddrs = getCurrentAddresses(filter);
for (const auto& addr : currentAddrs)
{
if (addr.flags & IFA_F_DEPRECATED)
{
continue;
}
auto address = std::to_string(addr.address);
IP::Protocol addressType = getProtocol(addr.address);
IP::AddressOrigin origin = IP::AddressOrigin::Static;
if (dhcpIsEnabled(addressType))
{
origin = IP::AddressOrigin::DHCP;
}
#ifdef LINK_LOCAL_AUTOCONFIGURATION
if (addr.scope == RT_SCOPE_LINK)
{
origin = IP::AddressOrigin::LinkLocal;
}
#endif
auto ipAddressObjectPath =
generateObjectPath(addressType, address, addr.prefix, origin);
this->addrs.insert_or_assign(
address, std::make_unique<IPAddress>(bus, ipAddressObjectPath,
*this, addressType, address,
origin, addr.prefix));
}
}
void EthernetInterface::createStaticNeighborObjects()
{
staticNeighbors.clear();
NeighborFilter filter;
filter.interface = ifIdx;
filter.state = NUD_PERMANENT;
auto neighbors = getCurrentNeighbors(filter);
for (const auto& neighbor : neighbors)
{
if (!neighbor.mac)
{
continue;
}
auto ip = std::to_string(neighbor.address);
auto mac = std::to_string(*neighbor.mac);
auto objectPath = generateStaticNeighborObjectPath(ip, mac);
staticNeighbors.emplace(
ip, std::make_unique<Neighbor>(bus, objectPath, *this, ip, mac,
Neighbor::State::Permanent));
}
}
ObjectPath EthernetInterface::ip(IP::Protocol protType, std::string ipaddress,
uint8_t prefixLength, std::string)
{
if (dhcpIsEnabled(protType))
{
log<level::INFO>("DHCP enabled on the interface, disabling"),
entry("INTERFACE=%s", interfaceName().c_str());
switch (protType)
{
case IP::Protocol::IPv4:
dhcp4(false);
break;
case IP::Protocol::IPv6:
dhcp6(false);
break;
}
// Delete the IP address object and that reloads the networkd
// to allow the same IP address to be set as Static IP
deleteObject(ipaddress);
}
IP::AddressOrigin origin = IP::AddressOrigin::Static;
int addressFamily = (protType == IP::Protocol::IPv4) ? AF_INET : AF_INET6;
if (!isValidIP(addressFamily, ipaddress))
{
log<level::ERR>("Not a valid IP address"),
entry("ADDRESS=%s", ipaddress.c_str());
elog<InvalidArgument>(Argument::ARGUMENT_NAME("ipaddress"),
Argument::ARGUMENT_VALUE(ipaddress.c_str()));
}
if (!isValidPrefix(addressFamily, prefixLength))
{
log<level::ERR>("PrefixLength is not correct "),
entry("PREFIXLENGTH=%" PRIu8, prefixLength);
elog<InvalidArgument>(
Argument::ARGUMENT_NAME("prefixLength"),
Argument::ARGUMENT_VALUE(std::to_string(prefixLength).c_str()));
}
auto objectPath =
generateObjectPath(protType, ipaddress, prefixLength, origin);
this->addrs.insert_or_assign(
ipaddress,
std::make_unique<IPAddress>(bus, objectPath, *this, protType, ipaddress,
origin, prefixLength));
writeConfigurationFile();
manager.reloadConfigs();
return objectPath;
}
ObjectPath EthernetInterface::neighbor(std::string ipAddress,
std::string macAddress)
{
if (!isValidIP(ipAddress))
{
log<level::ERR>("Not a valid IP address",
entry("ADDRESS=%s", ipAddress.c_str()));
elog<InvalidArgument>(Argument::ARGUMENT_NAME("ipAddress"),
Argument::ARGUMENT_VALUE(ipAddress.c_str()));
}
if (!mac_address::isUnicast(mac_address::fromString(macAddress)))
{
log<level::ERR>("Not a valid MAC address",
entry("MACADDRESS=%s", ipAddress.c_str()));
elog<InvalidArgument>(Argument::ARGUMENT_NAME("macAddress"),
Argument::ARGUMENT_VALUE(macAddress.c_str()));
}
auto objectPath = generateStaticNeighborObjectPath(ipAddress, macAddress);
staticNeighbors.emplace(
ipAddress,
std::make_unique<Neighbor>(bus, objectPath, *this, ipAddress,
macAddress, Neighbor::State::Permanent));
writeConfigurationFile();
manager.reloadConfigs();
return objectPath;
}
void EthernetInterface::deleteObject(std::string_view ipaddress)
{
auto it = addrs.find(ipaddress);
if (it == addrs.end())
{
log<level::ERR>("DeleteObject:Unable to find the object.");
return;
}
this->addrs.erase(it);
writeConfigurationFile();
manager.reloadConfigs();
}
void EthernetInterface::deleteStaticNeighborObject(std::string_view ipAddress)
{
auto it = staticNeighbors.find(ipAddress);
if (it == staticNeighbors.end())
{
log<level::ERR>(
"DeleteStaticNeighborObject:Unable to find the object.");
return;
}
staticNeighbors.erase(it);
writeConfigurationFile();
manager.reloadConfigs();
}
std::string EthernetInterface::generateObjectPath(
IP::Protocol addressType, std::string_view ipAddress, uint8_t prefixLength,
IP::AddressOrigin origin) const
{
std::string_view type;
switch (addressType)
{
case IP::Protocol::IPv4:
type = "ipv4"sv;
break;
case IP::Protocol::IPv6:
type = "ipv6"sv;
break;
}
return fmt::format(
FMT_COMPILE("{}/{}/{:08x}"), objPath, type,
static_cast<uint32_t>(hash_multi(
ipAddress, prefixLength,
static_cast<std::underlying_type_t<IP::AddressOrigin>>(origin))));
}
std::string EthernetInterface::generateStaticNeighborObjectPath(
std::string_view ipAddress, std::string_view macAddress) const
{
return fmt::format(
FMT_COMPILE("{}/static_neighbor/{:08x}"), objPath,
static_cast<uint32_t>(hash_multi(ipAddress, macAddress)));
}
bool EthernetInterface::ipv6AcceptRA(bool value)
{
if (ipv6AcceptRA() != EthernetInterfaceIntf::ipv6AcceptRA(value))
{
writeConfigurationFile();
manager.reloadConfigs();
}
return value;
}
bool EthernetInterface::dhcp4(bool value)
{
if (dhcp4() != EthernetInterfaceIntf::dhcp4(value))
{
writeConfigurationFile();
manager.reloadConfigs();
}
return value;
}
bool EthernetInterface::dhcp6(bool value)
{
if (dhcp6() != EthernetInterfaceIntf::dhcp6(value))
{
writeConfigurationFile();
manager.reloadConfigs();
}
return value;
}
EthernetInterface::DHCPConf EthernetInterface::dhcpEnabled(DHCPConf value)
{
auto old4 = EthernetInterfaceIntf::dhcp4();
auto new4 = EthernetInterfaceIntf::dhcp4(value == DHCPConf::v4 ||
value == DHCPConf::v4v6stateless ||
value == DHCPConf::both);
auto old6 = EthernetInterfaceIntf::dhcp6();
auto new6 = EthernetInterfaceIntf::dhcp6(value == DHCPConf::v6 ||
value == DHCPConf::both);
auto oldra = EthernetInterfaceIntf::ipv6AcceptRA();
auto newra = EthernetInterfaceIntf::ipv6AcceptRA(
value == DHCPConf::v6stateless || value == DHCPConf::v4v6stateless ||
value == DHCPConf::v6 || value == DHCPConf::both);
if (old4 != new4 || old6 != new6 || oldra != newra)
{
writeConfigurationFile();
manager.reloadConfigs();
}
return value;
}
EthernetInterface::DHCPConf EthernetInterface::dhcpEnabled() const
{
if (dhcp6())
{
return dhcp4() ? DHCPConf::both : DHCPConf::v6;
}
else if (dhcp4())
{
return ipv6AcceptRA() ? DHCPConf::v4v6stateless : DHCPConf::v4;
}
return ipv6AcceptRA() ? DHCPConf::v6stateless : DHCPConf::none;
}
bool EthernetInterface::linkUp() const
{
if (ifIdx == 0)
{
return EthernetInterfaceIntf::linkUp();
}
return system::intfIsRunning(interfaceName());
}
size_t EthernetInterface::mtu() const
{
if (ifIdx == 0)
{
return EthernetInterfaceIntf::mtu();
}
const auto ifname = interfaceName();
return ignoreError("GetMTU", ifname, std::nullopt,
[&] { return system::getMTU(ifname); })
.value_or(EthernetInterfaceIntf::mtu());
}
size_t EthernetInterface::mtu(size_t value)
{
const size_t old = EthernetInterfaceIntf::mtu();
if (value == old)
{
return value;
}
const auto ifname = interfaceName();
return EthernetInterfaceIntf::mtu(ignoreError("SetMTU", ifname, old, [&] {
system::setMTU(ifname, value);
return value;
}));
}
bool EthernetInterface::queryNicEnabled() const
{
constexpr auto svc = "org.freedesktop.network1";
constexpr auto intf = "org.freedesktop.network1.Link";
constexpr auto prop = "AdministrativeState";
char* rpath;
sd_bus_path_encode("/org/freedesktop/network1/link",
std::to_string(ifIdx).c_str(), &rpath);
std::string path(rpath);
free(rpath);
// Store / Parser for the AdministrativeState return value
std::optional<bool> ret;
auto cb = [&](std::string_view state) {
if (state != "initialized")
{
ret = state != "unmanaged";
}
};
// Build a matcher before making the property call to ensure we
// can eventually get the value.
sdbusplus::bus::match_t match(
bus,
fmt::format("type='signal',sender='{}',path='{}',interface='{}',member="
"'PropertiesChanged',arg0='{}',",
svc, path, PROPERTY_INTERFACE, intf)
.c_str(),
[&](sdbusplus::message_t& m) {
std::string intf;
std::unordered_map<std::string, std::variant<std::string>> values;
try
{
m.read(intf, values);
auto it = values.find(prop);
// Ignore properties that aren't AdministrativeState
if (it != values.end())
{
cb(std::get<std::string>(it->second));
}
}
catch (const std::exception& e)
{
log<level::ERR>(
fmt::format(
"AdministrativeState match parsing failed on {}: {}",
interfaceName(), e.what())
.c_str(),
entry("INTERFACE=%s", interfaceName().c_str()),
entry("ERROR=%s", e.what()));
}
});
// Actively call for the value in case the interface is already configured
auto method =
bus.new_method_call(svc, path.c_str(), PROPERTY_INTERFACE, METHOD_GET);
method.append(intf, prop);
try
{
auto reply = bus.call(method);
std::variant<std::string> state;
reply.read(state);
cb(std::get<std::string>(state));
}
catch (const std::exception& e)
{
log<level::ERR>(
fmt::format("Failed to get AdministrativeState on {}: {}",
interfaceName(), e.what())
.c_str(),
entry("INTERFACE=%s", interfaceName().c_str()),
entry("ERROR=%s", e.what()));
}
// The interface is not yet configured by systemd-networkd, wait until it
// signals us a valid state.
while (!ret)
{
bus.wait();
bus.process_discard();
}
return *ret;
}
bool EthernetInterface::nicEnabled(bool value)
{
if (value == EthernetInterfaceIntf::nicEnabled())
{
return value;
}
EthernetInterfaceIntf::nicEnabled(value);
writeConfigurationFile();
if (!value)
{
// We only need to bring down the interface, networkd will always bring
// up managed interfaces
manager.addReloadPreHook(
[ifname = interfaceName()]() { system::setNICUp(ifname, false); });
}
manager.reloadConfigs();
return value;
}
ServerList EthernetInterface::staticNameServers(ServerList value)
{
for (const auto& nameserverip : value)
{
if (!isValidIP(nameserverip))
{
log<level::ERR>("Not a valid IP address"),
entry("ADDRESS=%s", nameserverip.c_str());
elog<InvalidArgument>(
Argument::ARGUMENT_NAME("StaticNameserver"),
Argument::ARGUMENT_VALUE(nameserverip.c_str()));
}
}
try
{
EthernetInterfaceIntf::staticNameServers(value);
writeConfigurationFile();
manager.reloadConfigs();
}
catch (const InternalFailure& e)
{
log<level::ERR>("Exception processing DNS entries");
}
return EthernetInterfaceIntf::staticNameServers();
}
void EthernetInterface::loadNTPServers(const config::Parser& config)
{
EthernetInterfaceIntf::ntpServers(getNTPServerFromTimeSyncd());
EthernetInterfaceIntf::staticNTPServers(
config.map.getValueStrings("Network", "NTP"));
}
void EthernetInterface::loadNameServers(const config::Parser& config)
{
EthernetInterfaceIntf::nameservers(getNameServerFromResolvd());
EthernetInterfaceIntf::staticNameServers(
config.map.getValueStrings("Network", "DNS"));
}
ServerList EthernetInterface::getNTPServerFromTimeSyncd()
{
ServerList servers; // Variable to capture the NTP Server IPs
auto method = bus.new_method_call(TIMESYNCD_SERVICE, TIMESYNCD_SERVICE_PATH,
PROPERTY_INTERFACE, METHOD_GET);
method.append(TIMESYNCD_INTERFACE, "LinkNTPServers");
try
{
auto reply = bus.call(method);
std::variant<ServerList> response;
reply.read(response);
servers = std::get<ServerList>(response);
}
catch (const sdbusplus::exception::SdBusError& e)
{
log<level::ERR>(
"Failed to get NTP server information from Systemd-Timesyncd");
}
return servers;
}
ServerList EthernetInterface::getNameServerFromResolvd()
{
ServerList servers;
auto OBJ_PATH = fmt::format("{}{}", RESOLVED_SERVICE_PATH, ifIdx);
/*
The DNS property under org.freedesktop.resolve1.Link interface contains
an array containing all DNS servers currently used by resolved. It
contains similar information as the DNS server data written to
/run/systemd/resolve/resolv.conf.
Each structure in the array consists of a numeric network interface index,
an address family, and a byte array containing the DNS server address
(either 4 bytes in length for IPv4 or 16 bytes in lengths for IPv6).
The array contains DNS servers configured system-wide, including those
possibly read from a foreign /etc/resolv.conf or the DNS= setting in
/etc/systemd/resolved.conf, as well as per-interface DNS server
information either retrieved from systemd-networkd or configured by
external software via SetLinkDNS().
*/
using type = std::vector<std::tuple<int32_t, std::vector<uint8_t>>>;
std::variant<type> name; // Variable to capture the DNS property
auto method = bus.new_method_call(RESOLVED_SERVICE, OBJ_PATH.c_str(),
PROPERTY_INTERFACE, METHOD_GET);
method.append(RESOLVED_INTERFACE, "DNS");
try
{
auto reply = bus.call(method);
reply.read(name);
}
catch (const sdbusplus::exception_t& e)
{
log<level::ERR>("Failed to get DNS information from Systemd-Resolved");
}
auto tupleVector = std::get_if<type>(&name);
for (auto i = tupleVector->begin(); i != tupleVector->end(); ++i)
{
int addressFamily = std::get<0>(*i);
std::vector<uint8_t>& ipaddress = std::get<1>(*i);
servers.push_back(std::to_string(
addrFromBuf(addressFamily, stdplus::raw::asView<char>(ipaddress))));
}
return servers;
}
ObjectPath EthernetInterface::createVLAN(uint16_t id)
{
auto intfName = fmt::format(FMT_COMPILE("{}.{}"), interfaceName(), id);
auto idStr = std::to_string(id);
if (manager.interfaces.find(intfName) != manager.interfaces.end())
{
log<level::ERR>("VLAN already exists", entry("VLANID=%u", id));
elog<InvalidArgument>(Argument::ARGUMENT_NAME("VLANId"),
Argument::ARGUMENT_VALUE(idStr.c_str()));
}
auto objRoot = std::string_view(objPath).substr(0, objPath.rfind('/'));
auto macStr = MacAddressIntf::macAddress();
std::optional<ether_addr> mac;
if (!macStr.empty())
{
mac.emplace(mac_address::fromString(macStr));
}
auto info = system::InterfaceInfo{
.idx = 0, // TODO: Query the correct value after creation
.flags = 0,
.name = intfName,
.mac = std::move(mac),
.mtu = mtu(),
.parent_idx = ifIdx,
.vlan_id = id,
};
// Pass the parents nicEnabled property, so that the child
// VLAN interface can inherit.
auto vlanIntf = std::make_unique<EthernetInterface>(
bus, manager, info, objRoot, config::Parser(), /*emit=*/true,
nicEnabled());
ObjectPath ret = vlanIntf->objPath;
manager.interfaces.emplace(intfName, std::move(vlanIntf));
// write the device file for the vlan interface.
config::Parser config;
auto& netdev = config.map["NetDev"].emplace_back();
netdev["Name"].emplace_back(intfName);
netdev["Kind"].emplace_back("vlan");
config.map["VLAN"].emplace_back()["Id"].emplace_back(std::move(idStr));
config.writeFile(config::pathForIntfDev(manager.getConfDir(), intfName));
writeConfigurationFile();
manager.reloadConfigs();
return objPath;
}
ServerList EthernetInterface::staticNTPServers(ServerList value)
{
try
{
EthernetInterfaceIntf::staticNTPServers(value);
writeConfigurationFile();
manager.reloadConfigs();
}
catch (InternalFailure& e)
{
log<level::ERR>("Exception processing NTP entries");
}
return EthernetInterfaceIntf::staticNTPServers();
}
ServerList EthernetInterface::ntpServers(ServerList /*servers*/)
{
elog<NotAllowed>(NotAllowedArgument::REASON("ReadOnly Property"));
}
// Need to merge the below function with the code which writes the
// config file during factory reset.
// TODO openbmc/openbmc#1751
void EthernetInterface::writeConfigurationFile()
{
config::Parser config;
config.map["Match"].emplace_back()["Name"].emplace_back(interfaceName());
{
auto& link = config.map["Link"].emplace_back();
#ifdef PERSIST_MAC
auto mac = MacAddressIntf::macAddress();
if (!mac.empty())
{
link["MACAddress"].emplace_back(mac);
}
#endif
if (!EthernetInterfaceIntf::nicEnabled())
{
link["Unmanaged"].emplace_back("yes");
}
}
{
auto& network = config.map["Network"].emplace_back();
auto& lla = network["LinkLocalAddressing"];
#ifdef LINK_LOCAL_AUTOCONFIGURATION
lla.emplace_back("yes");
#else
lla.emplace_back("no");
#endif
network["IPv6AcceptRA"].emplace_back(ipv6AcceptRA() ? "true" : "false");
network["DHCP"].emplace_back(dhcp4() ? (dhcp6() ? "true" : "ipv4")
: (dhcp6() ? "ipv6" : "false"));
{
auto& vlans = network["VLAN"];
for (const auto& [_, intf] : manager.interfaces)
{
if (intf->vlan && intf->vlan->parentIdx == ifIdx)
{
vlans.emplace_back(intf->interfaceName());
}
}
}
{
auto& ntps = network["NTP"];
for (const auto& ntp : EthernetInterfaceIntf::staticNTPServers())
{
ntps.emplace_back(ntp);
}
}
{
auto& dnss = network["DNS"];
for (const auto& dns : EthernetInterfaceIntf::staticNameServers())
{
dnss.emplace_back(dns);
}
}
{
auto& address = network["Address"];
for (const auto& addr : getAddresses())
{
if (originIsManuallyAssigned(addr.second->origin()) &&
!dhcpIsEnabled(addr.second->type()))
{
address.emplace_back(
fmt::format("{}/{}", addr.second->address(),
addr.second->prefixLength()));
}
}
}
{
auto& gateways = network["Gateway"];
if (!dhcp4())
{
auto gateway = EthernetInterfaceIntf::defaultGateway();
if (!gateway.empty())
{
gateways.emplace_back(gateway);
}
}
if (!dhcp6())
{
auto gateway6 = EthernetInterfaceIntf::defaultGateway6();
if (!gateway6.empty())
{
gateways.emplace_back(gateway6);
}
}
}
}
config.map["IPv6AcceptRA"].emplace_back()["DHCPv6Client"].emplace_back(
dhcp6() ? "true" : "false");
{
auto& neighbors = config.map["Neighbor"];
for (const auto& sneighbor : staticNeighbors)
{
auto& neighbor = neighbors.emplace_back();
neighbor["Address"].emplace_back(sneighbor.second->ipAddress());
neighbor["MACAddress"].emplace_back(sneighbor.second->macAddress());
}
}
{
auto& dhcp = config.map["DHCP"].emplace_back();
dhcp["ClientIdentifier"].emplace_back("mac");
if (manager.getDHCPConf())
{
const auto& conf = *manager.getDHCPConf();
auto dns_enabled = conf.dnsEnabled() ? "true" : "false";
dhcp["UseDNS"].emplace_back(dns_enabled);
dhcp["UseDomains"].emplace_back(dns_enabled);
dhcp["UseNTP"].emplace_back(conf.ntpEnabled() ? "true" : "false");
dhcp["UseHostname"].emplace_back(conf.hostNameEnabled() ? "true"
: "false");
dhcp["SendHostname"].emplace_back(
conf.sendHostNameEnabled() ? "true" : "false");
}
}
auto path = config::pathForIntfConf(manager.getConfDir(), interfaceName());
config.writeFile(path);
auto msg = fmt::format("Wrote networkd file: {}", path.native());
log<level::INFO>(msg.c_str(), entry("FILE=%s", path.c_str()));
}
std::string EthernetInterface::macAddress([[maybe_unused]] std::string value)
{
if (vlan)
{
log<level::ERR>("Tried to set MAC address on VLAN");
elog<InternalFailure>();
}
#ifdef PERSIST_MAC
ether_addr newMAC;
try
{
newMAC = mac_address::fromString(value);
}
catch (const std::invalid_argument&)
{
log<level::ERR>("MACAddress is not valid.",
entry("MAC=%s", value.c_str()));
elog<InvalidArgument>(Argument::ARGUMENT_NAME("MACAddress"),
Argument::ARGUMENT_VALUE(value.c_str()));
}
if (!mac_address::isUnicast(newMAC))
{
log<level::ERR>("MACAddress is not valid.",
entry("MAC=%s", value.c_str()));
elog<InvalidArgument>(Argument::ARGUMENT_NAME("MACAddress"),
Argument::ARGUMENT_VALUE(value.c_str()));
}
auto interface = interfaceName();
auto validMAC = std::to_string(newMAC);
// We don't need to update the system if the address is unchanged
ether_addr oldMAC = mac_address::fromString(MacAddressIntf::macAddress());
if (newMAC != oldMAC)
{
// Update everything that depends on the MAC value
for (const auto& [_, intf] : manager.interfaces)
{
if (intf->vlan && intf->vlan->parentIdx == ifIdx)
{
intf->MacAddressIntf::macAddress(validMAC);
}
}
MacAddressIntf::macAddress(validMAC);
writeConfigurationFile();
manager.addReloadPreHook([interface]() {
// The MAC and LLADDRs will only update if the NIC is already down
system::setNICUp(interface, false);
});
manager.reloadConfigs();
}
#ifdef HAVE_UBOOT_ENV
// Ensure that the valid address is stored in the u-boot-env
auto envVar = interfaceToUbootEthAddr(interface);
if (envVar)
{
// Trimming MAC addresses that are out of range. eg: AA:FF:FF:FF:FF:100;
// and those having more than 6 bytes. eg: AA:AA:AA:AA:AA:AA:BB
execute("/sbin/fw_setenv", "fw_setenv", envVar->c_str(),
validMAC.c_str());
}
#endif // HAVE_UBOOT_ENV
return value;
#else
elog<NotAllowed>(
NotAllowedArgument::REASON("Writing MAC address is not allowed"));
#endif // PERSIST_MAC
}
void EthernetInterface::deleteAll()
{
// clear all the ip on the interface
addrs.clear();
writeConfigurationFile();
manager.reloadConfigs();
}
std::string EthernetInterface::defaultGateway(std::string gateway)
{
auto gw = EthernetInterfaceIntf::defaultGateway();
if (gw == gateway)
{
return gw;
}
if (!isValidIP(AF_INET, gateway) && !gateway.empty())
{
log<level::ERR>("Not a valid v4 Gateway",
entry("GATEWAY=%s", gateway.c_str()));
elog<InvalidArgument>(Argument::ARGUMENT_NAME("GATEWAY"),
Argument::ARGUMENT_VALUE(gateway.c_str()));
}
gw = EthernetInterfaceIntf::defaultGateway(gateway);
writeConfigurationFile();
manager.reloadConfigs();
return gw;
}
std::string EthernetInterface::defaultGateway6(std::string gateway)
{
auto gw = EthernetInterfaceIntf::defaultGateway6();
if (gw == gateway)
{
return gw;
}
if (!isValidIP(AF_INET6, gateway) && !gateway.empty())
{
log<level::ERR>("Not a valid v6 Gateway",
entry("GATEWAY=%s", gateway.c_str()));
elog<InvalidArgument>(Argument::ARGUMENT_NAME("GATEWAY"),
Argument::ARGUMENT_VALUE(gateway.c_str()));
}
gw = EthernetInterfaceIntf::defaultGateway6(gateway);
writeConfigurationFile();
manager.reloadConfigs();
return gw;
}
EthernetInterface::VlanProperties::VlanProperties(
sdbusplus::bus_t& bus, stdplus::const_zstring objPath,
const system::InterfaceInfo& info, EthernetInterface& eth,
bool emitSignal) :
VlanIfaces(bus, objPath.c_str(),
emitSignal ? VlanIfaces::action::defer_emit
: VlanIfaces::action::emit_no_signals),
parentIdx(*info.parent_idx), eth(eth)
{
VlanIntf::id(*info.vlan_id);
if (emitSignal)
{
this->emit_object_added();
}
}
void EthernetInterface::VlanProperties::delete_()
{
auto intf = eth.interfaceName();
// Remove all configs for the current interface
const auto& confDir = eth.manager.getConfDir();
std::error_code ec;
std::filesystem::remove(config::pathForIntfConf(confDir, intf), ec);
std::filesystem::remove(config::pathForIntfDev(confDir, intf), ec);
// Write an updated parent interface since it has a VLAN entry
for (const auto& [_, intf] : eth.manager.interfaces)
{
if (intf->ifIdx == parentIdx)
{
intf->writeConfigurationFile();
}
}
// We need to forcibly delete the interface as systemd does not
deleteInterface(intf);
eth.manager.interfaces.erase(intf);
}
} // namespace network
} // namespace phosphor