1 #include "system_configuration.hpp" 2 3 #include <phosphor-logging/elog-errors.hpp> 4 #include <phosphor-logging/lg2.hpp> 5 #include <stdplus/pinned.hpp> 6 #include <xyz/openbmc_project/Common/error.hpp> 7 8 namespace phosphor 9 { 10 namespace network 11 { 12 13 static constexpr char HOSTNAMED_SVC[] = "org.freedesktop.hostname1"; 14 static constexpr char HOSTNAMED_OBJ[] = "/org/freedesktop/hostname1"; 15 static constexpr char HOSTNAMED_INTF[] = "org.freedesktop.hostname1"; 16 17 using namespace phosphor::logging; 18 using namespace sdbusplus::xyz::openbmc_project::Common::Error; 19 using Argument = xyz::openbmc_project::Common::InvalidArgument; 20 21 static constexpr char propMatch[] = 22 "type='signal',sender='org.freedesktop.hostname1'," 23 "path='/org/freedesktop/hostname1'," 24 "interface='org.freedesktop.DBus.Properties',member='PropertiesChanged'," 25 "arg0='org.freedesktop.hostname1'"; 26 27 SystemConfiguration::SystemConfiguration( 28 stdplus::PinnedRef<sdbusplus::bus_t> bus, stdplus::const_zstring objPath) : 29 Iface(bus, objPath.c_str(), Iface::action::defer_emit), 30 bus(bus), hostnamePropMatch( 31 bus, propMatch, 32 [sc = stdplus::PinnedRef(*this)](sdbusplus::message_t& m) { 33 std::string intf; 34 std::unordered_map<std::string, std::variant<std::string>> values; 35 try 36 { 37 m.read(intf, values); 38 auto it = values.find("Hostname"); 39 if (it == values.end()) 40 { 41 return; 42 } 43 sc.get().Iface::hostName(std::get<std::string>(it->second)); 44 } 45 catch (const std::exception& e) 46 { 47 lg2::error("Hostname match parsing failed: {ERROR}", "ERROR", e); 48 } 49 }) 50 { 51 try 52 { 53 std::variant<std::string> name; 54 auto req = bus.get().new_method_call(HOSTNAMED_SVC, HOSTNAMED_OBJ, 55 "org.freedesktop.DBus.Properties", 56 "Get"); 57 58 req.append(HOSTNAMED_INTF, "Hostname"); 59 auto reply = req.call(); 60 reply.read(name); 61 SystemConfigIntf::hostName(std::get<std::string>(name), true); 62 } 63 catch (const std::exception& e) 64 { 65 lg2::error("Failed to get hostname: {ERROR}", "ERROR", e); 66 } 67 68 emit_object_added(); 69 } 70 71 std::string SystemConfiguration::hostName(std::string name) 72 { 73 if (SystemConfigIntf::hostName() == name) 74 { 75 return name; 76 } 77 try 78 { 79 auto method = bus.get().new_method_call( 80 HOSTNAMED_SVC, HOSTNAMED_OBJ, HOSTNAMED_INTF, "SetStaticHostname"); 81 method.append(name, /*interactive=*/false); 82 method.call(); 83 return SystemConfigIntf::hostName(std::move(name)); 84 } 85 catch (const sdbusplus::exception::SdBusError& e) 86 { 87 lg2::error("Failed to set hostname {HOSTNAME}: {ERROR} ", "HOSTNAME", 88 name, "ERROR", e); 89 auto dbusError = e.get_error(); 90 if ((dbusError != nullptr) && 91 (strcmp(dbusError->name, 92 "org.freedesktop.DBus.Error.InvalidArgs") == 0)) 93 { 94 elog<InvalidArgument>(Argument::ARGUMENT_NAME("Hostname"), 95 Argument::ARGUMENT_VALUE(name.c_str())); 96 } 97 } 98 return SystemConfigIntf::hostName(); 99 } 100 101 } // namespace network 102 } // namespace phosphor 103