blob: 7db5f7f0e077c0d2715b464877cb1e7c112b26f1 [file] [log] [blame]
#include "network_manager.hpp"
#include "config_parser.hpp"
#include "ipaddress.hpp"
#include "system_queries.hpp"
#include "types.hpp"
#include "util.hpp"
#include <linux/if_addr.h>
#include <linux/neighbour.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <phosphor-logging/elog-errors.hpp>
#include <phosphor-logging/lg2.hpp>
#include <sdbusplus/message.hpp>
#include <stdplus/numeric/str.hpp>
#include <stdplus/pinned.hpp>
#include <xyz/openbmc_project/Common/error.hpp>
#include <filesystem>
namespace phosphor
{
namespace network
{
using namespace phosphor::logging;
using namespace sdbusplus::xyz::openbmc_project::Common::Error;
using Argument = xyz::openbmc_project::Common::InvalidArgument;
static constexpr const char enabledMatch[] =
"type='signal',sender='org.freedesktop.network1',path_namespace='/org/"
"freedesktop/network1/"
"link',interface='org.freedesktop.DBus.Properties',member='"
"PropertiesChanged',arg0='org.freedesktop.network1.Link',";
Manager::Manager(stdplus::PinnedRef<sdbusplus::bus_t> bus,
DelayedExecutor& reload, stdplus::zstring_view objPath,
const std::filesystem::path& confDir) :
ManagerIface(bus, objPath.c_str(), ManagerIface::action::defer_emit),
reload(reload), bus(bus), objPath(std::string(objPath)), confDir(confDir),
systemdNetworkdEnabledMatch(
bus, enabledMatch,
[man = stdplus::PinnedRef(*this)](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("AdministrativeState");
if (it == values.end())
{
return;
}
const std::string_view obj = m.get_path();
auto sep = obj.rfind('/');
if (sep == obj.npos || sep + 3 > obj.size())
{
throw std::invalid_argument("Invalid obj path");
}
auto ifidx = stdplus::StrToInt<10, uint16_t>{}(obj.substr(sep + 3));
const auto& state = std::get<std::string>(it->second);
man.get().handleAdminState(state, ifidx);
}
catch (const std::exception& e)
{
lg2::error("AdministrativeState match parsing failed: {ERROR}", "ERROR",
e);
}
})
{
reload.setCallback([&]() {
for (auto& hook : reloadPreHooks)
{
try
{
hook();
}
catch (const std::exception& ex)
{
lg2::error("Failed executing reload hook, ignoring: {ERROR}",
"ERROR", ex);
}
}
reloadPreHooks.clear();
try
{
bus.get()
.new_method_call("org.freedesktop.network1",
"/org/freedesktop/network1",
"org.freedesktop.network1.Manager", "Reload")
.call();
lg2::info("Reloaded systemd-networkd");
}
catch (const sdbusplus::exception_t& ex)
{
lg2::error("Failed to reload configuration: {ERROR}", "ERROR", ex);
reloadPostHooks.clear();
}
for (auto& hook : reloadPostHooks)
{
try
{
hook();
}
catch (const std::exception& ex)
{
lg2::error("Failed executing reload hook, ignoring: {ERROR}",
"ERROR", ex);
}
}
reloadPostHooks.clear();
});
std::vector<
std::tuple<int32_t, std::string, sdbusplus::message::object_path>>
links;
try
{
auto rsp = bus.get()
.new_method_call("org.freedesktop.network1",
"/org/freedesktop/network1",
"org.freedesktop.network1.Manager",
"ListLinks")
.call();
rsp.read(links);
}
catch (const sdbusplus::exception::SdBusError& e)
{
// Any failures are systemd-network not being ready
}
for (const auto& link : links)
{
unsigned ifidx = std::get<0>(link);
auto obj = fmt::format("/org/freedesktop/network1/link/_3{}", ifidx);
auto req =
bus.get().new_method_call("org.freedesktop.network1", obj.c_str(),
"org.freedesktop.DBus.Properties", "Get");
req.append("org.freedesktop.network1.Link", "AdministrativeState");
auto rsp = req.call();
std::variant<std::string> val;
rsp.read(val);
handleAdminState(std::get<std::string>(val), ifidx);
}
std::filesystem::create_directories(confDir);
systemConf = std::make_unique<phosphor::network::SystemConfiguration>(
bus, (this->objPath / "config").str);
dhcpConf = std::make_unique<phosphor::network::dhcp::Configuration>(
bus, (this->objPath / "dhcp").str, *this);
}
void Manager::createInterface(const AllIntfInfo& info, bool enabled)
{
if (ignoredIntf.find(info.intf.idx) != ignoredIntf.end())
{
return;
}
if (auto it = interfacesByIdx.find(info.intf.idx);
it != interfacesByIdx.end())
{
if (info.intf.name && *info.intf.name != it->second->interfaceName())
{
interfaces.erase(it->second->interfaceName());
interfacesByIdx.erase(it);
}
else
{
it->second->updateInfo(info.intf);
return;
}
}
else if (info.intf.name)
{
auto it = interfaces.find(*info.intf.name);
if (it != interfaces.end())
{
it->second->updateInfo(info.intf);
return;
}
}
if (!info.intf.name)
{
lg2::error("Can't create interface without name: {NET_IDX}", "NET_IDX",
info.intf.idx);
return;
}
config::Parser config(config::pathForIntfConf(confDir, *info.intf.name));
auto intf = std::make_unique<EthernetInterface>(
bus, *this, info, objPath.str, config, enabled);
intf->loadNameServers(config);
intf->loadNTPServers(config);
auto ptr = intf.get();
interfaces.insert_or_assign(*info.intf.name, std::move(intf));
interfacesByIdx.insert_or_assign(info.intf.idx, ptr);
}
void Manager::addInterface(const InterfaceInfo& info)
{
if (info.type != ARPHRD_ETHER)
{
ignoredIntf.emplace(info.idx);
return;
}
if (info.name)
{
const auto& ignored = internal::getIgnoredInterfaces();
if (ignored.find(*info.name) != ignored.end())
{
static std::unordered_set<std::string> ignored;
if (!ignored.contains(*info.name))
{
ignored.emplace(*info.name);
lg2::info("Ignoring interface {NET_INTF}", "NET_INTF",
*info.name);
}
ignoredIntf.emplace(info.idx);
return;
}
}
auto infoIt = intfInfo.find(info.idx);
if (infoIt != intfInfo.end())
{
infoIt->second.intf = info;
}
else
{
infoIt = std::get<0>(intfInfo.emplace(info.idx, AllIntfInfo{info}));
}
if (auto it = systemdNetworkdEnabled.find(info.idx);
it != systemdNetworkdEnabled.end())
{
createInterface(infoIt->second, it->second);
}
}
void Manager::removeInterface(const InterfaceInfo& info)
{
auto iit = interfacesByIdx.find(info.idx);
auto nit = interfaces.end();
if (info.name)
{
nit = interfaces.find(*info.name);
if (nit != interfaces.end() && iit != interfacesByIdx.end() &&
nit->second.get() != iit->second)
{
fmt::print(stderr, "Removed interface desync detected\n");
fflush(stderr);
std::abort();
}
}
else if (iit != interfacesByIdx.end())
{
for (nit = interfaces.begin(); nit != interfaces.end(); ++nit)
{
if (nit->second.get() == iit->second)
{
break;
}
}
}
if (iit != interfacesByIdx.end())
{
interfacesByIdx.erase(iit);
}
else
{
ignoredIntf.erase(info.idx);
}
if (nit != interfaces.end())
{
interfaces.erase(nit);
}
intfInfo.erase(info.idx);
}
void Manager::addAddress(const AddressInfo& info)
{
if (info.flags & IFA_F_DEPRECATED)
{
return;
}
if (auto it = intfInfo.find(info.ifidx); it != intfInfo.end())
{
it->second.addrs.insert_or_assign(info.ifaddr, info);
if (auto it = interfacesByIdx.find(info.ifidx);
it != interfacesByIdx.end())
{
it->second->addAddr(info);
}
}
else if (!ignoredIntf.contains(info.ifidx))
{
throw std::runtime_error(
fmt::format("Interface `{}` not found for addr", info.ifidx));
}
}
void Manager::removeAddress(const AddressInfo& info)
{
if (auto it = interfacesByIdx.find(info.ifidx); it != interfacesByIdx.end())
{
it->second->addrs.erase(info.ifaddr);
if (auto it = intfInfo.find(info.ifidx); it != intfInfo.end())
{
it->second.addrs.erase(info.ifaddr);
}
}
}
void Manager::addNeighbor(const NeighborInfo& info)
{
if (!(info.state & NUD_PERMANENT) || !info.addr)
{
return;
}
if (auto it = intfInfo.find(info.ifidx); it != intfInfo.end())
{
it->second.staticNeighs.insert_or_assign(*info.addr, info);
if (auto it = interfacesByIdx.find(info.ifidx);
it != interfacesByIdx.end())
{
it->second->addStaticNeigh(info);
}
}
else if (!ignoredIntf.contains(info.ifidx))
{
throw std::runtime_error(
fmt::format("Interface `{}` not found for neigh", info.ifidx));
}
}
void Manager::removeNeighbor(const NeighborInfo& info)
{
if (!info.addr)
{
return;
}
if (auto it = intfInfo.find(info.ifidx); it != intfInfo.end())
{
it->second.staticNeighs.erase(*info.addr);
if (auto it = interfacesByIdx.find(info.ifidx);
it != interfacesByIdx.end())
{
it->second->staticNeighbors.erase(*info.addr);
}
}
}
void Manager::addDefGw(unsigned ifidx, stdplus::InAnyAddr addr)
{
if (auto it = intfInfo.find(ifidx); it != intfInfo.end())
{
std::visit(
[&](auto addr) {
if constexpr (std::is_same_v<stdplus::In4Addr, decltype(addr)>)
{
it->second.defgw4.emplace(addr);
}
else
{
static_assert(std::is_same_v<stdplus::In6Addr, decltype(addr)>);
it->second.defgw6.emplace(addr);
}
},
addr);
if (auto it = interfacesByIdx.find(ifidx); it != interfacesByIdx.end())
{
std::visit(
[&](auto addr) {
if constexpr (std::is_same_v<stdplus::In4Addr, decltype(addr)>)
{
it->second->EthernetInterfaceIntf::defaultGateway(
stdplus::toStr(addr));
}
else
{
static_assert(
std::is_same_v<stdplus::In6Addr, decltype(addr)>);
it->second->EthernetInterfaceIntf::defaultGateway6(
stdplus::toStr(addr));
}
},
addr);
}
}
else if (!ignoredIntf.contains(ifidx))
{
lg2::error("Interface {NET_IDX} not found for gw", "NET_IDX", ifidx);
}
}
void Manager::removeDefGw(unsigned ifidx, stdplus::InAnyAddr addr)
{
if (auto it = intfInfo.find(ifidx); it != intfInfo.end())
{
std::visit(
[&](auto addr) {
if constexpr (std::is_same_v<stdplus::In4Addr, decltype(addr)>)
{
if (it->second.defgw4 == addr)
{
it->second.defgw4.reset();
}
}
else
{
static_assert(std::is_same_v<stdplus::In6Addr, decltype(addr)>);
if (it->second.defgw6 == addr)
{
it->second.defgw6.reset();
}
}
},
addr);
if (auto it = interfacesByIdx.find(ifidx); it != interfacesByIdx.end())
{
std::visit(
[&](auto addr) {
if constexpr (std::is_same_v<stdplus::In4Addr, decltype(addr)>)
{
stdplus::ToStrHandle<stdplus::ToStr<stdplus::In4Addr>> tsh;
if (it->second->defaultGateway() == tsh(addr))
{
it->second->EthernetInterfaceIntf::defaultGateway("");
}
}
else
{
static_assert(
std::is_same_v<stdplus::In6Addr, decltype(addr)>);
stdplus::ToStrHandle<stdplus::ToStr<stdplus::In6Addr>> tsh;
if (it->second->defaultGateway6() == tsh(addr))
{
it->second->EthernetInterfaceIntf::defaultGateway6("");
}
}
},
addr);
}
}
}
ObjectPath Manager::vlan(std::string interfaceName, uint32_t id)
{
if (id == 0 || id >= 4095)
{
lg2::error("VLAN ID {NET_VLAN} is not valid", "NET_VLAN", id);
elog<InvalidArgument>(
Argument::ARGUMENT_NAME("VLANId"),
Argument::ARGUMENT_VALUE(std::to_string(id).c_str()));
}
auto it = interfaces.find(interfaceName);
if (it == interfaces.end())
{
using ResourceErr =
phosphor::logging::xyz::openbmc_project::Common::ResourceNotFound;
elog<ResourceNotFound>(ResourceErr::RESOURCE(interfaceName.c_str()));
}
return it->second->createVLAN(id);
}
void Manager::reset()
{
for (const auto& dirent : std::filesystem::directory_iterator(confDir))
{
std::error_code ec;
std::filesystem::remove(dirent.path(), ec);
}
lg2::info("Network data purged.");
}
// 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();
}
}
void Manager::handleAdminState(std::string_view state, unsigned ifidx)
{
if (state == "initialized" || state == "linger")
{
systemdNetworkdEnabled.erase(ifidx);
}
else
{
bool managed = state != "unmanaged";
systemdNetworkdEnabled.insert_or_assign(ifidx, managed);
if (auto it = interfacesByIdx.find(ifidx); it != interfacesByIdx.end())
{
it->second->EthernetInterfaceIntf::nicEnabled(managed);
}
else if (auto it = intfInfo.find(ifidx); it != intfInfo.end())
{
createInterface(it->second, managed);
}
}
}
} // namespace network
} // namespace phosphor