/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ /*** This file is part of systemd. Copyright 2010 Lennart Poettering systemd is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see <http://www.gnu.org/licenses/>. ***/ #include "strv.h" #include "path-util.h" #include "unit.h" #include "service.h" #include "dbus-unit.h" #include "dbus-execute.h" #include "dbus-kill.h" #include "dbus-cgroup.h" #include "dbus-service.h" #include "bus-util.h" static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, service_type, ServiceType); static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_result, service_result, ServiceResult); static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_restart, service_restart, ServiceRestart); static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_notify_access, notify_access, NotifyAccess); static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_start_limit_action, start_limit_action, StartLimitAction); const sd_bus_vtable bus_service_vtable[] = { SD_BUS_VTABLE_START(0), SD_BUS_PROPERTY("Type", "s", property_get_type, offsetof(Service, type), 0), SD_BUS_PROPERTY("Restart", "s", property_get_restart, offsetof(Service, restart), 0), SD_BUS_PROPERTY("PIDFile", "s", NULL, offsetof(Service, pid_file), 0), SD_BUS_PROPERTY("NotifyAccess", "s", property_get_notify_access, offsetof(Service, notify_access), 0), SD_BUS_PROPERTY("RestartUSec", "t", bus_property_get_usec, offsetof(Service, restart_usec), 0), SD_BUS_PROPERTY("TimeoutStartUSec", "t", bus_property_get_usec, offsetof(Service, timeout_start_usec), 0), SD_BUS_PROPERTY("TimeoutStopUSec", "t", bus_property_get_usec, offsetof(Service, timeout_stop_usec), 0), SD_BUS_PROPERTY("WatchdogUSec", "t", bus_property_get_usec, offsetof(Service, watchdog_usec), 0), BUS_PROPERTY_DUAL_TIMESTAMP("WatchdogTimestamp", offsetof(Service, watchdog_timestamp), 0), SD_BUS_PROPERTY("StartLimitInterval", "t", bus_property_get_usec, offsetof(Service, start_limit.interval), 0), SD_BUS_PROPERTY("StartLimitBurst", "u", bus_property_get_unsigned, offsetof(Service, start_limit.burst), 0), SD_BUS_PROPERTY("StartLimitAction", "s", property_get_start_limit_action, offsetof(Service, start_limit_action), 0), SD_BUS_PROPERTY("PermissionsStartOnly", "b", bus_property_get_bool, offsetof(Service, permissions_start_only), 0), SD_BUS_PROPERTY("RootDirectoryStartOnly", "b", bus_property_get_bool, offsetof(Service, root_directory_start_only), 0), SD_BUS_PROPERTY("RemainAfterExit", "b", bus_property_get_bool, offsetof(Service, remain_after_exit), 0), SD_BUS_PROPERTY("GuessMainPID", "b", bus_property_get_bool, offsetof(Service, guess_main_pid), 0), SD_BUS_PROPERTY("MainPID", "u", bus_property_get_pid, offsetof(Service, main_pid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), SD_BUS_PROPERTY("ControlPID", "u", bus_property_get_pid, offsetof(Service, control_pid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), SD_BUS_PROPERTY("BusName", "s", NULL, offsetof(Service, bus_name), 0), SD_BUS_PROPERTY("StatusText", "s", NULL, offsetof(Service, status_text), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), SD_BUS_PROPERTY("Result", "s", property_get_result, offsetof(Service, result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), BUS_EXEC_STATUS_VTABLE("ExecMain", offsetof(Service, main_exec_status), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), BUS_EXEC_COMMAND_LIST_VTABLE("ExecStartPre", offsetof(Service, exec_command[SERVICE_EXEC_START_PRE]), 0), BUS_EXEC_COMMAND_LIST_VTABLE("ExecStart", offsetof(Service, exec_command[SERVICE_EXEC_START]), 0), BUS_EXEC_COMMAND_LIST_VTABLE("ExecStartPost", offsetof(Service, exec_command[SERVICE_EXEC_START_POST]), 0), BUS_EXEC_COMMAND_LIST_VTABLE("ExecReload", offsetof(Service, exec_command[SERVICE_EXEC_RELOAD]), 0), BUS_EXEC_COMMAND_LIST_VTABLE("ExecStop", offsetof(Service, exec_command[SERVICE_EXEC_STOP]), 0), BUS_EXEC_COMMAND_LIST_VTABLE("ExecStopPost", offsetof(Service, exec_command[SERVICE_EXEC_STOP_POST]), 0), SD_BUS_VTABLE_END }; const char* const bus_service_changing_properties[] = { "ExecMainStartTimestamp", "ExecMainStartTimestampMonotonic", "ExecMainExitTimestamp", "ExecMainExitTimestampMonotonic", "ExecMainPID", "ExecMainCode", "ExecMainStatus", "MainPID", "ControlPID", "StatusText", "Result", NULL }; static int bus_service_set_transient_property( Service *s, const char *name, sd_bus_message *message, UnitSetPropertiesMode mode, sd_bus_error *error) { int r; assert(s); assert(name); assert(message); if (streq(name, "RemainAfterExit")) { int b; r = sd_bus_message_read(message, "b", &b); if (r < 0) return r; if (mode != UNIT_CHECK) { s->remain_after_exit = b; unit_write_drop_in_private_format(UNIT(s), mode, name, "RemainAfterExit=%s\n", yes_no(b)); } return 1; } else if (streq(name, "ExecStart")) { unsigned n = 0; r = sd_bus_message_enter_container(message, 'a', "(sasb)"); if (r < 0) return r; while ((r = sd_bus_message_enter_container(message, 'r', "sasb")) > 0) { _cleanup_strv_free_ char **argv = NULL; const char *path; int b; r = sd_bus_message_read(message, "s", &path); if (r < 0) return r; if (!path_is_absolute(path)) return sd_bus_error_set_errnof(error, EINVAL, "Path %s is not absolute.", path); r = sd_bus_message_read_strv(message, &argv); if (r < 0) return r; r = sd_bus_message_read(message, "b", &b); if (r < 0) return r; r = sd_bus_message_exit_container(message); if (r < 0) return r; if (mode != UNIT_CHECK) { ExecCommand *c; c = new0(ExecCommand, 1); if (!c) return -ENOMEM; c->path = strdup(path); if (!c->path) { free(c); return -ENOMEM; } c->argv = argv; argv = NULL; c->ignore = b; path_kill_slashes(c->path); exec_command_append_list(&s->exec_command[SERVICE_EXEC_START], c); } n++; } if (r < 0) return r; r = sd_bus_message_exit_container(message); if (r < 0) return r; if (mode != UNIT_CHECK) { _cleanup_free_ char *buf = NULL; _cleanup_fclose_ FILE *f = NULL; ExecCommand *c; size_t size = 0; if (n == 0) { exec_command_free_list(s->exec_command[SERVICE_EXEC_START]); s->exec_command[SERVICE_EXEC_START] = NULL; } f = open_memstream(&buf, &size); if (!f) return -ENOMEM; fputs("ExecStart=\n", f); LIST_FOREACH(command, c, s->exec_command[SERVICE_EXEC_START]) { _cleanup_free_ char *a; a = strv_join_quoted(c->argv); if (!a) return -ENOMEM; fprintf(f, "ExecStart=%s@%s %s\n", c->ignore ? "-" : "", c->path, a); } fflush(f); unit_write_drop_in_private(UNIT(s), mode, name, buf); } return 1; } return 0; } int bus_service_set_property( Unit *u, const char *name, sd_bus_message *message, UnitSetPropertiesMode mode, sd_bus_error *error) { Service *s = SERVICE(u); int r; assert(s); assert(name); assert(message); r = bus_cgroup_set_property(u, &s->cgroup_context, name, message, mode, error); if (r != 0) return r; if (u->transient && u->load_state == UNIT_STUB) { /* This is a transient unit, let's load a little more */ r = bus_service_set_transient_property(s, name, message, mode, error); if (r != 0) return r; r = bus_kill_context_set_transient_property(u, &s->kill_context, name, message, mode, error); if (r != 0) return r; } return 0; } int bus_service_commit_properties(Unit *u) { assert(u); unit_realize_cgroup(u); return 0; }