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
SystemConfiguration(stdplus::PinnedRef<sdbusplus::bus_t> bus,stdplus::const_zstring objPath)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
hostName(std::string name)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