src/dbus-service.c

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 /***
   4   This file is part of systemd.
   5
   6   Copyright 2010 Lennart Poettering
   7
   8   systemd is free software; you can redistribute it and/or modify it
   9   under the terms of the GNU General Public License as published by
  10   the Free Software Foundation; either version 2 of the License, or
  11   (at your option) any later version.
  12
  13   systemd is distributed in the hope that it will be useful, but
  14   WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16   General Public License for more details.
  17
  18   You should have received a copy of the GNU General Public License
  19   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  20 ***/
  21
  22 #include <errno.h>
  23
  24 #include "dbus-unit.h"
  25 #include "dbus-execute.h"
  26 #include "dbus-service.h"
  27 #include "dbus-common.h"
  28
  29 #ifdef HAVE_SYSV_COMPAT
  30 #define BUS_SERVICE_SYSV_INTERFACE_FRAGMENT                            \
  31         "  <property name=\"SysVStartPriority\" type=\"i\" access=\"read\"/>\n" \
  32         "  <property name=\"SysVRunLevels\" type=\"s\" access=\"read\"/>\n" \
  33         "  <property name=\"SysVPath\" type=\"s\" access=\"read\"/>\n"
  34 #else
  35 #define BUS_SERVICE_SYSV_INTERFACE_FRAGMENT ""
  36 #endif
  37
  38 #define BUS_SERVICE_INTERFACE                                           \
  39         " <interface name=\"org.freedesktop.systemd1.Service\">\n"      \
  40         "  <property name=\"Type\" type=\"s\" access=\"read\"/>\n"      \
  41         "  <property name=\"Restart\" type=\"s\" access=\"read\"/>\n"   \
  42         "  <property name=\"PIDFile\" type=\"s\" access=\"read\"/>\n"   \
  43         "  <property name=\"NotifyAccess\" type=\"s\" access=\"read\"/>\n" \
  44         "  <property name=\"RestartUSec\" type=\"t\" access=\"read\"/>\n" \
  45         "  <property name=\"TimeoutUSec\" type=\"t\" access=\"read\"/>\n" \
  46         BUS_EXEC_COMMAND_INTERFACE("ExecStartPre")                      \
  47         BUS_EXEC_COMMAND_INTERFACE("ExecStart")                         \
  48         BUS_EXEC_COMMAND_INTERFACE("ExecStartPost")                     \
  49         BUS_EXEC_COMMAND_INTERFACE("ExecReload")                        \
  50         BUS_EXEC_COMMAND_INTERFACE("ExecStop")                          \
  51         BUS_EXEC_COMMAND_INTERFACE("ExecStopPost")                      \
  52         BUS_EXEC_CONTEXT_INTERFACE                                      \
  53         "  <property name=\"PermissionsStartOnly\" type=\"b\" access=\"read\"/>\n" \
  54         "  <property name=\"RootDirectoryStartOnly\" type=\"b\" access=\"read\"/>\n" \
  55         "  <property name=\"RemainAfterExit\" type=\"b\" access=\"read\"/>\n" \
  56         BUS_EXEC_STATUS_INTERFACE("ExecMain")                           \
  57         "  <property name=\"MainPID\" type=\"u\" access=\"read\"/>\n"   \
  58         "  <property name=\"ControlPID\" type=\"u\" access=\"read\"/>\n" \
  59         "  <property name=\"BusName\" type=\"s\" access=\"read\"/>\n"   \
  60         "  <property name=\"StatusText\" type=\"s\" access=\"read\"/>\n" \
  61         "  <property name=\"FsckPassNo\" type=\"i\" access=\"read\"/>\n" \
  62         "  <property name=\"Sockets\" type=\"as\" access=\"read\"/>\n" \
  63         BUS_SERVICE_SYSV_INTERFACE_FRAGMENT                              \
  64        " </interface>\n"
  65
  66 #define INTROSPECTION                                                   \
  67         DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE                       \
  68         "<node>\n"                                                      \
  69         BUS_UNIT_INTERFACE                                              \
  70         BUS_SERVICE_INTERFACE                                           \
  71         BUS_PROPERTIES_INTERFACE                                        \
  72         BUS_PEER_INTERFACE                                              \
  73         BUS_INTROSPECTABLE_INTERFACE                                    \
  74         "</node>\n"
  75
  76 #define INTERFACES_LIST                              \
  77         BUS_UNIT_INTERFACES_LIST                     \
  78         "org.freedesktop.systemd1.Service\0"
  79
  80 const char bus_service_interface[] _introspect_("Service") = BUS_SERVICE_INTERFACE;
  81
  82 const char bus_service_invalidating_properties[] =
  83         "ExecStartPre\0"
  84         "ExecStart\0"
  85         "ExecStartPost\0"
  86         "ExecReload\0"
  87         "ExecStop\0"
  88         "ExecStopPost\0"
  89         "ExecMain\0"
  90         "MainPID\0"
  91         "ControlPID\0"
  92         "StatusText\0";
  93
  94 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_service_append_type, service_type, ServiceType);
  95 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_service_append_restart, service_restart, ServiceRestart);
  96 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_service_append_notify_access, notify_access, NotifyAccess);
  97
  98 DBusHandlerResult bus_service_message_handler(Unit *u, DBusConnection *connection, DBusMessage *message) {
  99         const BusProperty properties[] = {
 100                 BUS_UNIT_PROPERTIES,
 101                 { "org.freedesktop.systemd1.Service", "Type",                   bus_service_append_type,    "s", &u->service.type                      },
 102                 { "org.freedesktop.systemd1.Service", "Restart",                bus_service_append_restart, "s", &u->service.restart                   },
 103                 { "org.freedesktop.systemd1.Service", "PIDFile",                bus_property_append_string, "s", u->service.pid_file                   },
 104                 { "org.freedesktop.systemd1.Service", "NotifyAccess",           bus_service_append_notify_access, "s", &u->service.notify_access       },
 105                 { "org.freedesktop.systemd1.Service", "RestartUSec",            bus_property_append_usec,   "t", &u->service.restart_usec              },
 106                 { "org.freedesktop.systemd1.Service", "TimeoutUSec",            bus_property_append_usec,   "t", &u->service.timeout_usec              },
 107                 BUS_EXEC_COMMAND_PROPERTY("org.freedesktop.systemd1.Service", u->service.exec_command[SERVICE_EXEC_START_PRE],  "ExecStartPre"),
 108                 BUS_EXEC_COMMAND_PROPERTY("org.freedesktop.systemd1.Service", u->service.exec_command[SERVICE_EXEC_START],      "ExecStart"),
 109                 BUS_EXEC_COMMAND_PROPERTY("org.freedesktop.systemd1.Service", u->service.exec_command[SERVICE_EXEC_START_POST], "ExecStartPost"),
 110                 BUS_EXEC_COMMAND_PROPERTY("org.freedesktop.systemd1.Service", u->service.exec_command[SERVICE_EXEC_RELOAD],     "ExecReload"),
 111                 BUS_EXEC_COMMAND_PROPERTY("org.freedesktop.systemd1.Service", u->service.exec_command[SERVICE_EXEC_STOP],       "ExecStop"),
 112                 BUS_EXEC_COMMAND_PROPERTY("org.freedesktop.systemd1.Service", u->service.exec_command[SERVICE_EXEC_STOP_POST],  "ExecStopPost"),
 113                 BUS_EXEC_CONTEXT_PROPERTIES("org.freedesktop.systemd1.Service", u->service.exec_context),
 114                 { "org.freedesktop.systemd1.Service", "PermissionsStartOnly",   bus_property_append_bool,   "b", &u->service.permissions_start_only    },
 115                 { "org.freedesktop.systemd1.Service", "RootDirectoryStartOnly", bus_property_append_bool,   "b", &u->service.root_directory_start_only },
 116                 { "org.freedesktop.systemd1.Service", "RemainAfterExit",        bus_property_append_bool,   "b", &u->service.remain_after_exit         },
 117                 { "org.freedesktop.systemd1.Service", "GuessMainPID",           bus_property_append_bool,   "b", &u->service.guess_main_pid            },
 118                BUS_EXEC_STATUS_PROPERTIES("org.freedesktop.systemd1.Service", u->service.main_exec_status, "ExecMain"),
 119                 { "org.freedesktop.systemd1.Service", "MainPID",                bus_property_append_pid,    "u", &u->service.main_pid                  },
 120                 { "org.freedesktop.systemd1.Service", "ControlPID",             bus_property_append_pid,    "u", &u->service.control_pid               },
 121                 { "org.freedesktop.systemd1.Service", "BusName",                bus_property_append_string, "s", u->service.bus_name                   },
 122                 { "org.freedesktop.systemd1.Service", "StatusText",             bus_property_append_string, "s", u->service.status_text                },
 123                 { "org.freedesktop.systemd1.Service", "Sockets",                bus_unit_append_dependencies, "as", u->service.configured_sockets         },
 124 #ifdef HAVE_SYSV_COMPAT
 125                 { "org.freedesktop.systemd1.Service", "SysVRunLevels",          bus_property_append_string, "s", u->service.sysv_runlevels             },
 126                 { "org.freedesktop.systemd1.Service", "SysVStartPriority",      bus_property_append_int,    "i", &u->service.sysv_start_priority       },
 127                 { "org.freedesktop.systemd1.Service", "SysVPath",               bus_property_append_string, "s", u->service.sysv_path                  },
 128 #endif
 129                 { "org.freedesktop.systemd1.Service", "FsckPassNo",             bus_property_append_int,    "i", &u->service.fsck_passno               },
 130                 { NULL, NULL, NULL, NULL, NULL }
 131         };
 132
 133         return bus_default_message_handler(connection, message, INTROSPECTION, INTERFACES_LIST, properties);
 134 }