| /*** |
| 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 "sd-bus.h" |
| |
| #include "alloc-util.h" |
| #include "bus-common-errors.h" |
| #include "cgroup-util.h" |
| #include "dbus-unit.h" |
| #include "dbus.h" |
| #include "locale-util.h" |
| #include "log.h" |
| #include "selinux-access.h" |
| #include "special.h" |
| #include "string-util.h" |
| #include "strv.h" |
| #include "user-util.h" |
| |
| static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_load_state, unit_load_state, UnitLoadState); |
| static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_job_mode, job_mode, JobMode); |
| static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_failure_action, failure_action, FailureAction); |
| |
| static int property_get_names( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Unit *u = userdata; |
| Iterator i; |
| const char *t; |
| int r; |
| |
| assert(bus); |
| assert(reply); |
| assert(u); |
| |
| r = sd_bus_message_open_container(reply, 'a', "s"); |
| if (r < 0) |
| return r; |
| |
| SET_FOREACH(t, u->names, i) { |
| r = sd_bus_message_append(reply, "s", t); |
| if (r < 0) |
| return r; |
| } |
| |
| return sd_bus_message_close_container(reply); |
| } |
| |
| static int property_get_following( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Unit *u = userdata, *f; |
| |
| assert(bus); |
| assert(reply); |
| assert(u); |
| |
| f = unit_following(u); |
| return sd_bus_message_append(reply, "s", f ? f->id : ""); |
| } |
| |
| static int property_get_dependencies( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Set *s = *(Set**) userdata; |
| Iterator j; |
| Unit *u; |
| int r; |
| |
| assert(bus); |
| assert(reply); |
| |
| r = sd_bus_message_open_container(reply, 'a', "s"); |
| if (r < 0) |
| return r; |
| |
| SET_FOREACH(u, s, j) { |
| r = sd_bus_message_append(reply, "s", u->id); |
| if (r < 0) |
| return r; |
| } |
| |
| return sd_bus_message_close_container(reply); |
| } |
| |
| static int property_get_obsolete_dependencies( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| assert(bus); |
| assert(reply); |
| |
| /* For dependency types we don't support anymore always return an empty array */ |
| return sd_bus_message_append(reply, "as", 0); |
| } |
| |
| static int property_get_description( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Unit *u = userdata; |
| |
| assert(bus); |
| assert(reply); |
| assert(u); |
| |
| return sd_bus_message_append(reply, "s", unit_description(u)); |
| } |
| |
| static int property_get_active_state( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Unit *u = userdata; |
| |
| assert(bus); |
| assert(reply); |
| assert(u); |
| |
| return sd_bus_message_append(reply, "s", unit_active_state_to_string(unit_active_state(u))); |
| } |
| |
| static int property_get_sub_state( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Unit *u = userdata; |
| |
| assert(bus); |
| assert(reply); |
| assert(u); |
| |
| return sd_bus_message_append(reply, "s", unit_sub_state_to_string(u)); |
| } |
| |
| static int property_get_unit_file_preset( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Unit *u = userdata; |
| int r; |
| |
| assert(bus); |
| assert(reply); |
| assert(u); |
| |
| r = unit_get_unit_file_preset(u); |
| |
| return sd_bus_message_append(reply, "s", |
| r < 0 ? "": |
| r > 0 ? "enabled" : "disabled"); |
| } |
| |
| static int property_get_unit_file_state( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Unit *u = userdata; |
| |
| assert(bus); |
| assert(reply); |
| assert(u); |
| |
| return sd_bus_message_append(reply, "s", unit_file_state_to_string(unit_get_unit_file_state(u))); |
| } |
| |
| static int property_get_can_start( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Unit *u = userdata; |
| |
| assert(bus); |
| assert(reply); |
| assert(u); |
| |
| return sd_bus_message_append(reply, "b", unit_can_start(u) && !u->refuse_manual_start); |
| } |
| |
| static int property_get_can_stop( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Unit *u = userdata; |
| |
| assert(bus); |
| assert(reply); |
| assert(u); |
| |
| /* On the lower levels we assume that every unit we can start |
| * we can also stop */ |
| |
| return sd_bus_message_append(reply, "b", unit_can_start(u) && !u->refuse_manual_stop); |
| } |
| |
| static int property_get_can_reload( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Unit *u = userdata; |
| |
| assert(bus); |
| assert(reply); |
| assert(u); |
| |
| return sd_bus_message_append(reply, "b", unit_can_reload(u)); |
| } |
| |
| static int property_get_can_isolate( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Unit *u = userdata; |
| |
| assert(bus); |
| assert(reply); |
| assert(u); |
| |
| return sd_bus_message_append(reply, "b", unit_can_isolate(u) && !u->refuse_manual_start); |
| } |
| |
| static int property_get_job( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| _cleanup_free_ char *p = NULL; |
| Unit *u = userdata; |
| |
| assert(bus); |
| assert(reply); |
| assert(u); |
| |
| if (!u->job) |
| return sd_bus_message_append(reply, "(uo)", 0, "/"); |
| |
| p = job_dbus_path(u->job); |
| if (!p) |
| return -ENOMEM; |
| |
| return sd_bus_message_append(reply, "(uo)", u->job->id, p); |
| } |
| |
| static int property_get_need_daemon_reload( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Unit *u = userdata; |
| |
| assert(bus); |
| assert(reply); |
| assert(u); |
| |
| return sd_bus_message_append(reply, "b", unit_need_daemon_reload(u)); |
| } |
| |
| static int property_get_conditions( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| const char *(*to_string)(ConditionType type) = NULL; |
| Condition **list = userdata, *c; |
| int r; |
| |
| assert(bus); |
| assert(reply); |
| assert(list); |
| |
| to_string = streq(property, "Asserts") ? assert_type_to_string : condition_type_to_string; |
| |
| r = sd_bus_message_open_container(reply, 'a', "(sbbsi)"); |
| if (r < 0) |
| return r; |
| |
| LIST_FOREACH(conditions, c, *list) { |
| int tristate; |
| |
| tristate = |
| c->result == CONDITION_UNTESTED ? 0 : |
| c->result == CONDITION_SUCCEEDED ? 1 : -1; |
| |
| r = sd_bus_message_append(reply, "(sbbsi)", |
| to_string(c->type), |
| c->trigger, c->negate, |
| c->parameter, tristate); |
| if (r < 0) |
| return r; |
| |
| } |
| |
| return sd_bus_message_close_container(reply); |
| } |
| |
| static int property_get_load_error( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| _cleanup_(sd_bus_error_free) sd_bus_error e = SD_BUS_ERROR_NULL; |
| Unit *u = userdata; |
| |
| assert(bus); |
| assert(reply); |
| assert(u); |
| |
| if (u->load_error != 0) |
| sd_bus_error_set_errno(&e, u->load_error); |
| |
| return sd_bus_message_append(reply, "(ss)", e.name, e.message); |
| } |
| |
| static int bus_verify_manage_units_async_full( |
| Unit *u, |
| const char *verb, |
| int capability, |
| const char *polkit_message, |
| sd_bus_message *call, |
| sd_bus_error *error) { |
| |
| const char *details[9] = { |
| "unit", u->id, |
| "verb", verb, |
| }; |
| |
| if (polkit_message) { |
| details[4] = "polkit.message"; |
| details[5] = polkit_message; |
| details[6] = "polkit.gettext_domain"; |
| details[7] = GETTEXT_PACKAGE; |
| } |
| |
| return bus_verify_polkit_async(call, capability, "org.freedesktop.systemd1.manage-units", details, false, UID_INVALID, &u->manager->polkit_registry, error); |
| } |
| |
| int bus_unit_method_start_generic( |
| sd_bus_message *message, |
| Unit *u, |
| JobType job_type, |
| bool reload_if_possible, |
| sd_bus_error *error) { |
| |
| const char *smode; |
| JobMode mode; |
| _cleanup_free_ char *verb = NULL; |
| static const char *const polkit_message_for_job[_JOB_TYPE_MAX] = { |
| [JOB_START] = N_("Authentication is required to start '$(unit)'."), |
| [JOB_STOP] = N_("Authentication is required to stop '$(unit)'."), |
| [JOB_RELOAD] = N_("Authentication is required to reload '$(unit)'."), |
| [JOB_RESTART] = N_("Authentication is required to restart '$(unit)'."), |
| [JOB_TRY_RESTART] = N_("Authentication is required to restart '$(unit)'."), |
| }; |
| int r; |
| |
| assert(message); |
| assert(u); |
| assert(job_type >= 0 && job_type < _JOB_TYPE_MAX); |
| |
| r = mac_selinux_unit_access_check( |
| u, message, |
| job_type_to_access_method(job_type), |
| error); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_read(message, "s", &smode); |
| if (r < 0) |
| return r; |
| |
| mode = job_mode_from_string(smode); |
| if (mode < 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Job mode %s invalid", smode); |
| |
| if (reload_if_possible) |
| verb = strjoin("reload-or-", job_type_to_string(job_type), NULL); |
| else |
| verb = strdup(job_type_to_string(job_type)); |
| if (!verb) |
| return -ENOMEM; |
| |
| r = bus_verify_manage_units_async_full( |
| u, |
| verb, |
| CAP_SYS_ADMIN, |
| job_type < _JOB_TYPE_MAX ? polkit_message_for_job[job_type] : NULL, |
| message, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| return bus_unit_queue_job(message, u, job_type, mode, reload_if_possible, error); |
| } |
| |
| static int method_start(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| return bus_unit_method_start_generic(message, userdata, JOB_START, false, error); |
| } |
| |
| static int method_stop(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| return bus_unit_method_start_generic(message, userdata, JOB_STOP, false, error); |
| } |
| |
| static int method_reload(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| return bus_unit_method_start_generic(message, userdata, JOB_RELOAD, false, error); |
| } |
| |
| static int method_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| return bus_unit_method_start_generic(message, userdata, JOB_RESTART, false, error); |
| } |
| |
| static int method_try_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| return bus_unit_method_start_generic(message, userdata, JOB_TRY_RESTART, false, error); |
| } |
| |
| static int method_reload_or_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| return bus_unit_method_start_generic(message, userdata, JOB_RESTART, true, error); |
| } |
| |
| static int method_reload_or_try_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| return bus_unit_method_start_generic(message, userdata, JOB_TRY_RESTART, true, error); |
| } |
| |
| int bus_unit_method_kill(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Unit *u = userdata; |
| const char *swho; |
| int32_t signo; |
| KillWho who; |
| int r; |
| |
| assert(message); |
| assert(u); |
| |
| r = mac_selinux_unit_access_check(u, message, "stop", error); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_read(message, "si", &swho, &signo); |
| if (r < 0) |
| return r; |
| |
| if (isempty(swho)) |
| who = KILL_ALL; |
| else { |
| who = kill_who_from_string(swho); |
| if (who < 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid who argument %s", swho); |
| } |
| |
| if (signo <= 0 || signo >= _NSIG) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Signal number out of range."); |
| |
| r = bus_verify_manage_units_async_full( |
| u, |
| "kill", |
| CAP_KILL, |
| N_("Authentication is required to kill '$(unit)'."), |
| message, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| r = unit_kill(u, who, signo, error); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| int bus_unit_method_reset_failed(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Unit *u = userdata; |
| int r; |
| |
| assert(message); |
| assert(u); |
| |
| r = mac_selinux_unit_access_check(u, message, "reload", error); |
| if (r < 0) |
| return r; |
| |
| r = bus_verify_manage_units_async_full( |
| u, |
| "reset-failed", |
| CAP_SYS_ADMIN, |
| N_("Authentication is required to reset the \"failed\" state of '$(unit)'."), |
| message, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| unit_reset_failed(u); |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| int bus_unit_method_set_properties(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Unit *u = userdata; |
| int runtime, r; |
| |
| assert(message); |
| assert(u); |
| |
| r = mac_selinux_unit_access_check(u, message, "start", error); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_read(message, "b", &runtime); |
| if (r < 0) |
| return r; |
| |
| r = bus_verify_manage_units_async_full( |
| u, |
| "set-property", |
| CAP_SYS_ADMIN, |
| N_("Authentication is required to set properties on '$(unit)'."), |
| message, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| r = bus_unit_set_properties(u, message, runtime ? UNIT_RUNTIME : UNIT_PERSISTENT, true, error); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| const sd_bus_vtable bus_unit_vtable[] = { |
| SD_BUS_VTABLE_START(0), |
| |
| SD_BUS_PROPERTY("Id", "s", NULL, offsetof(Unit, id), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("Names", "as", property_get_names, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("Following", "s", property_get_following, 0, 0), |
| SD_BUS_PROPERTY("Requires", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUIRES]), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("Requisite", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUISITE]), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("Wants", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_WANTS]), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("BindsTo", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_BINDS_TO]), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("PartOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_PART_OF]), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("RequiredBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUIRED_BY]), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("RequisiteOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUISITE_OF]), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("WantedBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_WANTED_BY]), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("BoundBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_BOUND_BY]), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("ConsistsOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_CONSISTS_OF]), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("Conflicts", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_CONFLICTS]), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("ConflictedBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_CONFLICTED_BY]), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("Before", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_BEFORE]), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("After", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_AFTER]), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("OnFailure", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_ON_FAILURE]), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("Triggers", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_TRIGGERS]), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("TriggeredBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_TRIGGERED_BY]), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("PropagatesReloadTo", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_PROPAGATES_RELOAD_TO]), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("ReloadPropagatedFrom", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_RELOAD_PROPAGATED_FROM]), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("JoinsNamespaceOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_JOINS_NAMESPACE_OF]), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("RequiresOverridable", "as", property_get_obsolete_dependencies, 0, SD_BUS_VTABLE_HIDDEN), |
| SD_BUS_PROPERTY("RequisiteOverridable", "as", property_get_obsolete_dependencies, 0, SD_BUS_VTABLE_HIDDEN), |
| SD_BUS_PROPERTY("RequiredByOverridable", "as", property_get_obsolete_dependencies, 0, SD_BUS_VTABLE_HIDDEN), |
| SD_BUS_PROPERTY("RequisiteOfOverridable", "as", property_get_obsolete_dependencies, 0, SD_BUS_VTABLE_HIDDEN), |
| SD_BUS_PROPERTY("RequiresMountsFor", "as", NULL, offsetof(Unit, requires_mounts_for), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("Documentation", "as", NULL, offsetof(Unit, documentation), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("Description", "s", property_get_description, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("LoadState", "s", property_get_load_state, offsetof(Unit, load_state), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("ActiveState", "s", property_get_active_state, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("SubState", "s", property_get_sub_state, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("FragmentPath", "s", NULL, offsetof(Unit, fragment_path), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("SourcePath", "s", NULL, offsetof(Unit, source_path), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("DropInPaths", "as", NULL, offsetof(Unit, dropin_paths), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("UnitFileState", "s", property_get_unit_file_state, 0, 0), |
| SD_BUS_PROPERTY("UnitFilePreset", "s", property_get_unit_file_preset, 0, 0), |
| BUS_PROPERTY_DUAL_TIMESTAMP("StateChangeTimestamp", offsetof(Unit, state_change_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| BUS_PROPERTY_DUAL_TIMESTAMP("InactiveExitTimestamp", offsetof(Unit, inactive_exit_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| BUS_PROPERTY_DUAL_TIMESTAMP("ActiveEnterTimestamp", offsetof(Unit, active_enter_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| BUS_PROPERTY_DUAL_TIMESTAMP("ActiveExitTimestamp", offsetof(Unit, active_exit_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| BUS_PROPERTY_DUAL_TIMESTAMP("InactiveEnterTimestamp", offsetof(Unit, inactive_enter_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("CanStart", "b", property_get_can_start, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("CanStop", "b", property_get_can_stop, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("CanReload", "b", property_get_can_reload, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("CanIsolate", "b", property_get_can_isolate, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("Job", "(uo)", property_get_job, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("StopWhenUnneeded", "b", bus_property_get_bool, offsetof(Unit, stop_when_unneeded), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("RefuseManualStart", "b", bus_property_get_bool, offsetof(Unit, refuse_manual_start), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("RefuseManualStop", "b", bus_property_get_bool, offsetof(Unit, refuse_manual_stop), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("AllowIsolate", "b", bus_property_get_bool, offsetof(Unit, allow_isolate), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("DefaultDependencies", "b", bus_property_get_bool, offsetof(Unit, default_dependencies), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("OnFailureJobMode", "s", property_get_job_mode, offsetof(Unit, on_failure_job_mode), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("IgnoreOnIsolate", "b", bus_property_get_bool, offsetof(Unit, ignore_on_isolate), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("NeedDaemonReload", "b", property_get_need_daemon_reload, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("JobTimeoutUSec", "t", bus_property_get_usec, offsetof(Unit, job_timeout), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("JobTimeoutAction", "s", property_get_failure_action, offsetof(Unit, job_timeout_action), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("JobTimeoutRebootArgument", "s", NULL, offsetof(Unit, job_timeout_reboot_arg), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("ConditionResult", "b", bus_property_get_bool, offsetof(Unit, condition_result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("AssertResult", "b", bus_property_get_bool, offsetof(Unit, assert_result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| BUS_PROPERTY_DUAL_TIMESTAMP("ConditionTimestamp", offsetof(Unit, condition_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| BUS_PROPERTY_DUAL_TIMESTAMP("AssertTimestamp", offsetof(Unit, assert_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("Conditions", "a(sbbsi)", property_get_conditions, offsetof(Unit, conditions), 0), |
| SD_BUS_PROPERTY("Asserts", "a(sbbsi)", property_get_conditions, offsetof(Unit, asserts), 0), |
| SD_BUS_PROPERTY("LoadError", "(ss)", property_get_load_error, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("Transient", "b", bus_property_get_bool, offsetof(Unit, transient), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("StartLimitInterval", "t", bus_property_get_usec, offsetof(Unit, start_limit.interval), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("StartLimitBurst", "u", bus_property_get_unsigned, offsetof(Unit, start_limit.burst), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("StartLimitAction", "s", property_get_failure_action, offsetof(Unit, start_limit_action), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("RebootArgument", "s", NULL, offsetof(Unit, reboot_arg), SD_BUS_VTABLE_PROPERTY_CONST), |
| |
| SD_BUS_METHOD("Start", "s", "o", method_start, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("Stop", "s", "o", method_stop, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("Reload", "s", "o", method_reload, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("Restart", "s", "o", method_restart, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("TryRestart", "s", "o", method_try_restart, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("ReloadOrRestart", "s", "o", method_reload_or_restart, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("ReloadOrTryRestart", "s", "o", method_reload_or_try_restart, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("Kill", "si", NULL, bus_unit_method_kill, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("ResetFailed", NULL, NULL, bus_unit_method_reset_failed, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("SetProperties", "ba(sv)", NULL, bus_unit_method_set_properties, SD_BUS_VTABLE_UNPRIVILEGED), |
| |
| SD_BUS_VTABLE_END |
| }; |
| |
| static int property_get_slice( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Unit *u = userdata; |
| |
| assert(bus); |
| assert(reply); |
| assert(u); |
| |
| return sd_bus_message_append(reply, "s", unit_slice_name(u)); |
| } |
| |
| static int property_get_current_memory( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| uint64_t sz = (uint64_t) -1; |
| Unit *u = userdata; |
| int r; |
| |
| assert(bus); |
| assert(reply); |
| assert(u); |
| |
| r = unit_get_memory_current(u, &sz); |
| if (r < 0 && r != -ENODATA) |
| log_unit_warning_errno(u, r, "Failed to get memory.usage_in_bytes attribute: %m"); |
| |
| return sd_bus_message_append(reply, "t", sz); |
| } |
| |
| static int property_get_current_tasks( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| uint64_t cn = (uint64_t) -1; |
| Unit *u = userdata; |
| int r; |
| |
| assert(bus); |
| assert(reply); |
| assert(u); |
| |
| r = unit_get_tasks_current(u, &cn); |
| if (r < 0 && r != -ENODATA) |
| log_unit_warning_errno(u, r, "Failed to get pids.current attribute: %m"); |
| |
| return sd_bus_message_append(reply, "t", cn); |
| } |
| |
| static int property_get_cpu_usage( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| nsec_t ns = (nsec_t) -1; |
| Unit *u = userdata; |
| int r; |
| |
| assert(bus); |
| assert(reply); |
| assert(u); |
| |
| r = unit_get_cpu_usage(u, &ns); |
| if (r < 0 && r != -ENODATA) |
| log_unit_warning_errno(u, r, "Failed to get cpuacct.usage attribute: %m"); |
| |
| return sd_bus_message_append(reply, "t", ns); |
| } |
| |
| static int property_get_cgroup( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Unit *u = userdata; |
| const char *t; |
| |
| assert(bus); |
| assert(reply); |
| assert(u); |
| |
| /* Three cases: a) u->cgroup_path is NULL, in which case the |
| * unit has no control group, which we report as the empty |
| * string. b) u->cgroup_path is the empty string, which |
| * indicates the root cgroup, which we report as "/". c) all |
| * other cases we report as-is. */ |
| |
| if (u->cgroup_path) |
| t = isempty(u->cgroup_path) ? "/" : u->cgroup_path; |
| else |
| t = ""; |
| |
| return sd_bus_message_append(reply, "s", t); |
| } |
| |
| const sd_bus_vtable bus_unit_cgroup_vtable[] = { |
| SD_BUS_VTABLE_START(0), |
| SD_BUS_PROPERTY("Slice", "s", property_get_slice, 0, 0), |
| SD_BUS_PROPERTY("ControlGroup", "s", property_get_cgroup, 0, 0), |
| SD_BUS_PROPERTY("MemoryCurrent", "t", property_get_current_memory, 0, 0), |
| SD_BUS_PROPERTY("CPUUsageNSec", "t", property_get_cpu_usage, 0, 0), |
| SD_BUS_PROPERTY("TasksCurrent", "t", property_get_current_tasks, 0, 0), |
| SD_BUS_VTABLE_END |
| }; |
| |
| static int send_new_signal(sd_bus *bus, void *userdata) { |
| _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; |
| _cleanup_free_ char *p = NULL; |
| Unit *u = userdata; |
| int r; |
| |
| assert(bus); |
| assert(u); |
| |
| p = unit_dbus_path(u); |
| if (!p) |
| return -ENOMEM; |
| |
| r = sd_bus_message_new_signal( |
| bus, |
| &m, |
| "/org/freedesktop/systemd1", |
| "org.freedesktop.systemd1.Manager", |
| "UnitNew"); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_append(m, "so", u->id, p); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_send(bus, m, NULL); |
| } |
| |
| static int send_changed_signal(sd_bus *bus, void *userdata) { |
| _cleanup_free_ char *p = NULL; |
| Unit *u = userdata; |
| int r; |
| |
| assert(bus); |
| assert(u); |
| |
| p = unit_dbus_path(u); |
| if (!p) |
| return -ENOMEM; |
| |
| /* Send a properties changed signal. First for the specific |
| * type, then for the generic unit. The clients may rely on |
| * this order to get atomic behavior if needed. */ |
| |
| r = sd_bus_emit_properties_changed_strv( |
| bus, p, |
| unit_dbus_interface_from_type(u->type), |
| NULL); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_emit_properties_changed_strv( |
| bus, p, |
| "org.freedesktop.systemd1.Unit", |
| NULL); |
| } |
| |
| void bus_unit_send_change_signal(Unit *u) { |
| int r; |
| assert(u); |
| |
| if (u->in_dbus_queue) { |
| LIST_REMOVE(dbus_queue, u->manager->dbus_unit_queue, u); |
| u->in_dbus_queue = false; |
| } |
| |
| if (!u->id) |
| return; |
| |
| r = bus_foreach_bus(u->manager, NULL, u->sent_dbus_new_signal ? send_changed_signal : send_new_signal, u); |
| if (r < 0) |
| log_unit_debug_errno(u, r, "Failed to send unit change signal for %s: %m", u->id); |
| |
| u->sent_dbus_new_signal = true; |
| } |
| |
| static int send_removed_signal(sd_bus *bus, void *userdata) { |
| _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; |
| _cleanup_free_ char *p = NULL; |
| Unit *u = userdata; |
| int r; |
| |
| assert(bus); |
| assert(u); |
| |
| p = unit_dbus_path(u); |
| if (!p) |
| return -ENOMEM; |
| |
| r = sd_bus_message_new_signal( |
| bus, |
| &m, |
| "/org/freedesktop/systemd1", |
| "org.freedesktop.systemd1.Manager", |
| "UnitRemoved"); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_append(m, "so", u->id, p); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_send(bus, m, NULL); |
| } |
| |
| void bus_unit_send_removed_signal(Unit *u) { |
| int r; |
| assert(u); |
| |
| if (!u->sent_dbus_new_signal) |
| bus_unit_send_change_signal(u); |
| |
| if (!u->id) |
| return; |
| |
| r = bus_foreach_bus(u->manager, NULL, send_removed_signal, u); |
| if (r < 0) |
| log_unit_debug_errno(u, r, "Failed to send unit remove signal for %s: %m", u->id); |
| } |
| |
| int bus_unit_queue_job( |
| sd_bus_message *message, |
| Unit *u, |
| JobType type, |
| JobMode mode, |
| bool reload_if_possible, |
| sd_bus_error *error) { |
| |
| _cleanup_free_ char *path = NULL; |
| Job *j; |
| int r; |
| |
| assert(message); |
| assert(u); |
| assert(type >= 0 && type < _JOB_TYPE_MAX); |
| assert(mode >= 0 && mode < _JOB_MODE_MAX); |
| |
| r = mac_selinux_unit_access_check( |
| u, message, |
| job_type_to_access_method(type), |
| error); |
| if (r < 0) |
| return r; |
| |
| if (reload_if_possible && unit_can_reload(u)) { |
| if (type == JOB_RESTART) |
| type = JOB_RELOAD_OR_START; |
| else if (type == JOB_TRY_RESTART) |
| type = JOB_TRY_RELOAD; |
| } |
| |
| |
| if (type == JOB_STOP && |
| (u->load_state == UNIT_NOT_FOUND || u->load_state == UNIT_ERROR) && |
| unit_active_state(u) == UNIT_INACTIVE) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s not loaded.", u->id); |
| |
| if ((type == JOB_START && u->refuse_manual_start) || |
| (type == JOB_STOP && u->refuse_manual_stop) || |
| ((type == JOB_RESTART || type == JOB_TRY_RESTART) && (u->refuse_manual_start || u->refuse_manual_stop)) || |
| (type == JOB_RELOAD_OR_START && job_type_collapse(type, u) == JOB_START && u->refuse_manual_start)) |
| return sd_bus_error_setf(error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, unit %s may be requested by dependency only.", u->id); |
| |
| r = manager_add_job(u->manager, type, u, mode, error, &j); |
| if (r < 0) |
| return r; |
| |
| if (sd_bus_message_get_bus(message) == u->manager->api_bus) { |
| if (!j->clients) { |
| r = sd_bus_track_new(sd_bus_message_get_bus(message), &j->clients, NULL, NULL); |
| if (r < 0) |
| return r; |
| } |
| |
| r = sd_bus_track_add_sender(j->clients, message); |
| if (r < 0) |
| return r; |
| } |
| |
| path = job_dbus_path(j); |
| if (!path) |
| return -ENOMEM; |
| |
| return sd_bus_reply_method_return(message, "o", path); |
| } |
| |
| static int bus_unit_set_transient_property( |
| Unit *u, |
| const char *name, |
| sd_bus_message *message, |
| UnitSetPropertiesMode mode, |
| sd_bus_error *error) { |
| |
| int r; |
| |
| assert(u); |
| assert(name); |
| assert(message); |
| |
| if (streq(name, "Description")) { |
| const char *d; |
| |
| r = sd_bus_message_read(message, "s", &d); |
| if (r < 0) |
| return r; |
| |
| if (mode != UNIT_CHECK) { |
| r = unit_set_description(u, d); |
| if (r < 0) |
| return r; |
| |
| unit_write_drop_in_format(u, mode, name, "[Unit]\nDescription=%s\n", d); |
| } |
| |
| return 1; |
| |
| } else if (streq(name, "DefaultDependencies")) { |
| int b; |
| |
| r = sd_bus_message_read(message, "b", &b); |
| if (r < 0) |
| return r; |
| |
| if (mode != UNIT_CHECK) { |
| u->default_dependencies = b; |
| unit_write_drop_in_format(u, mode, name, "[Unit]\nDefaultDependencies=%s\n", yes_no(b)); |
| } |
| |
| return 1; |
| |
| } else if (streq(name, "Slice")) { |
| Unit *slice; |
| const char *s; |
| |
| if (!UNIT_HAS_CGROUP_CONTEXT(u)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "The slice property is only available for units with control groups."); |
| if (u->type == UNIT_SLICE) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Slice may not be set for slice units."); |
| if (unit_has_name(u, SPECIAL_INIT_SCOPE)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Cannot set slice for init.scope"); |
| |
| r = sd_bus_message_read(message, "s", &s); |
| if (r < 0) |
| return r; |
| |
| if (!unit_name_is_valid(s, UNIT_NAME_PLAIN)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid unit name '%s'", s); |
| |
| r = manager_load_unit(u->manager, s, NULL, error, &slice); |
| if (r < 0) |
| return r; |
| |
| if (slice->type != UNIT_SLICE) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unit name '%s' is not a slice", s); |
| |
| if (mode != UNIT_CHECK) { |
| r = unit_set_slice(u, slice); |
| if (r < 0) |
| return r; |
| |
| unit_write_drop_in_private_format(u, mode, name, "Slice=%s\n", s); |
| } |
| |
| return 1; |
| |
| } else if (STR_IN_SET(name, |
| "Requires", "RequiresOverridable", |
| "Requisite", "RequisiteOverridable", |
| "Wants", |
| "BindsTo", |
| "Conflicts", |
| "Before", "After", |
| "OnFailure", |
| "PropagatesReloadTo", "ReloadPropagatedFrom", |
| "PartOf")) { |
| |
| UnitDependency d; |
| const char *other; |
| |
| if (streq(name, "RequiresOverridable")) |
| d = UNIT_REQUIRES; /* redirect for obsolete unit dependency type */ |
| else if (streq(name, "RequisiteOverridable")) |
| d = UNIT_REQUISITE; /* same here */ |
| else { |
| d = unit_dependency_from_string(name); |
| if (d < 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid unit dependency: %s", name); |
| } |
| |
| r = sd_bus_message_enter_container(message, 'a', "s"); |
| if (r < 0) |
| return r; |
| |
| while ((r = sd_bus_message_read(message, "s", &other)) > 0) { |
| if (!unit_name_is_valid(other, UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid unit name %s", other); |
| |
| if (mode != UNIT_CHECK) { |
| _cleanup_free_ char *label = NULL; |
| |
| r = unit_add_dependency_by_name(u, d, other, NULL, true); |
| if (r < 0) |
| return r; |
| |
| label = strjoin(name, "-", other, NULL); |
| if (!label) |
| return -ENOMEM; |
| |
| unit_write_drop_in_format(u, mode, label, "[Unit]\n%s=%s\n", name, other); |
| } |
| |
| } |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_exit_container(message); |
| if (r < 0) |
| return r; |
| |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| int bus_unit_set_properties( |
| Unit *u, |
| sd_bus_message *message, |
| UnitSetPropertiesMode mode, |
| bool commit, |
| sd_bus_error *error) { |
| |
| bool for_real = false; |
| unsigned n = 0; |
| int r; |
| |
| assert(u); |
| assert(message); |
| |
| /* We iterate through the array twice. First run we just check |
| * if all passed data is valid, second run actually applies |
| * it. This is to implement transaction-like behaviour without |
| * actually providing full transactions. */ |
| |
| r = sd_bus_message_enter_container(message, 'a', "(sv)"); |
| if (r < 0) |
| return r; |
| |
| for (;;) { |
| const char *name; |
| |
| r = sd_bus_message_enter_container(message, 'r', "sv"); |
| if (r < 0) |
| return r; |
| if (r == 0) { |
| if (for_real || mode == UNIT_CHECK) |
| break; |
| |
| /* Reached EOF. Let's try again, and this time for realz... */ |
| r = sd_bus_message_rewind(message, false); |
| if (r < 0) |
| return r; |
| |
| for_real = true; |
| continue; |
| } |
| |
| r = sd_bus_message_read(message, "s", &name); |
| if (r < 0) |
| return r; |
| |
| if (!UNIT_VTABLE(u)->bus_set_property) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_PROPERTY_READ_ONLY, "Objects of this type do not support setting properties."); |
| |
| r = sd_bus_message_enter_container(message, 'v', NULL); |
| if (r < 0) |
| return r; |
| |
| r = UNIT_VTABLE(u)->bus_set_property(u, name, message, for_real ? mode : UNIT_CHECK, error); |
| if (r == 0 && u->transient && u->load_state == UNIT_STUB) |
| r = bus_unit_set_transient_property(u, name, message, for_real ? mode : UNIT_CHECK, error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_PROPERTY_READ_ONLY, "Cannot set property %s, or unknown property.", name); |
| |
| r = sd_bus_message_exit_container(message); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_exit_container(message); |
| if (r < 0) |
| return r; |
| |
| n += for_real; |
| } |
| |
| r = sd_bus_message_exit_container(message); |
| if (r < 0) |
| return r; |
| |
| if (commit && n > 0 && UNIT_VTABLE(u)->bus_commit_properties) |
| UNIT_VTABLE(u)->bus_commit_properties(u); |
| |
| return n; |
| } |
| |
| int bus_unit_check_load_state(Unit *u, sd_bus_error *error) { |
| |
| if (u->load_state == UNIT_LOADED) |
| return 0; |
| |
| /* Give a better description of the unit error when |
| * possible. Note that in the case of UNIT_MASKED, load_error |
| * is not set. */ |
| if (u->load_state == UNIT_MASKED) |
| return sd_bus_error_setf(error, BUS_ERROR_UNIT_MASKED, "Unit %s is masked.", u->id); |
| |
| if (u->load_state == UNIT_NOT_FOUND) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s not found.", u->id); |
| |
| return sd_bus_error_set_errnof(error, u->load_error, "Unit %s is not loaded properly: %m.", u->id); |
| } |