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Diffstat (limited to 'src/core/dbus-unit.c')
| -rw-r--r-- | src/core/dbus-unit.c | 1109 |
1 files changed, 0 insertions, 1109 deletions
diff --git a/src/core/dbus-unit.c b/src/core/dbus-unit.c deleted file mode 100644 index af7dc26241..0000000000 --- a/src/core/dbus-unit.c +++ /dev/null @@ -1,1109 +0,0 @@ -/*-*- 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 "sd-bus.h" -#include "log.h" -#include "selinux-access.h" -#include "cgroup-util.h" -#include "strv.h" -#include "bus-common-errors.h" -#include "dbus.h" -#include "dbus-unit.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_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_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); -} - -int bus_unit_method_start_generic( - sd_bus *bus, - sd_bus_message *message, - Unit *u, - JobType job_type, - bool reload_if_possible, - sd_bus_error *error) { - - const char *smode; - JobMode mode; - int r; - - assert(bus); - assert(message); - assert(u); - assert(job_type >= 0 && job_type < _JOB_TYPE_MAX); - - r = mac_selinux_unit_access_check(u, message, job_type == JOB_STOP ? "stop" : "start", 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); - - r = bus_verify_manage_units_async(u->manager, 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(bus, message, u, job_type, mode, reload_if_possible, error); -} - -static int method_start(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { - return bus_unit_method_start_generic(bus, message, userdata, JOB_START, false, error); -} - -static int method_stop(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { - return bus_unit_method_start_generic(bus, message, userdata, JOB_STOP, false, error); -} - -static int method_reload(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { - return bus_unit_method_start_generic(bus, message, userdata, JOB_RELOAD, false, error); -} - -static int method_restart(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { - return bus_unit_method_start_generic(bus, message, userdata, JOB_RESTART, false, error); -} - -static int method_try_restart(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { - return bus_unit_method_start_generic(bus, message, userdata, JOB_TRY_RESTART, false, error); -} - -static int method_reload_or_restart(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { - return bus_unit_method_start_generic(bus, message, userdata, JOB_RESTART, true, error); -} - -static int method_reload_or_try_restart(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { - return bus_unit_method_start_generic(bus, message, userdata, JOB_TRY_RESTART, true, error); -} - -int bus_unit_method_kill(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { - Unit *u = userdata; - const char *swho; - int32_t signo; - KillWho who; - int r; - - assert(bus); - 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_for_kill(u->manager, 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 *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { - Unit *u = userdata; - int r; - - assert(bus); - 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(u->manager, 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 *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { - Unit *u = userdata; - int runtime, r; - - assert(bus); - 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(u->manager, 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("RequiresOverridable", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUIRES_OVERRIDABLE]), 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("RequisiteOverridable", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUISITE_OVERRIDABLE]), 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("RequiredByOverridable", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUIRED_BY_OVERRIDABLE]), 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("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("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("IgnoreOnSnapshot", "b", bus_property_get_bool, offsetof(Unit, ignore_on_snapshot), 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_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->id, r, "Failed to get memory.usage_in_bytes attribute: %m"); - - return sd_bus_message_append(reply, "t", sz); -} - -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->id, r, "Failed to get cpuacct.usage attribute: %m"); - - return sd_bus_message_append(reply, "t", ns); -} - -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", NULL, offsetof(Unit, cgroup_path), 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_VTABLE_END -}; - -static int send_new_signal(sd_bus *bus, void *userdata) { - _cleanup_bus_message_unref_ 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 (!u) - 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_VTABLE(u)->bus_interface, - 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_debug_errno(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_bus_message_unref_ 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 (!u) - 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_debug_errno(r, "Failed to send unit remove signal for %s: %m", u->id); -} - -int bus_unit_queue_job( - sd_bus *bus, - 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(bus); - assert(message); - assert(u); - assert(type >= 0 && type < _JOB_TYPE_MAX); - assert(mode >= 0 && mode < _JOB_MODE_MAX); - - 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_RELOAD; - } - - r = mac_selinux_unit_access_check( - u, message, - (type == JOB_START || type == JOB_RESTART || type == JOB_TRY_RESTART) ? "start" : - type == JOB_STOP ? "stop" : "reload", error); - if (r < 0) - return r; - - 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))) - 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, true, error, &j); - if (r < 0) - return r; - - if (bus == u->manager->api_bus) { - if (!j->clients) { - r = sd_bus_track_new(bus, &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_get_cgroup_context(u)) { - const char *s; - - r = sd_bus_message_read(message, "s", &s); - if (r < 0) - return r; - - if (!unit_name_is_valid(s, TEMPLATE_INVALID) || !endswith(s, ".slice")) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid slice name %s", s); - - if (isempty(s)) { - if (mode != UNIT_CHECK) { - unit_ref_unset(&u->slice); - unit_remove_drop_in(u, mode, name); - } - } else { - Unit *slice; - - r = manager_load_unit(u->manager, s, NULL, error, &slice); - if (r < 0) - return r; - - if (slice->type != UNIT_SLICE) - return -EINVAL; - - if (mode != UNIT_CHECK) { - unit_ref_set(&u->slice, slice); - 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; - - d = unit_dependency_from_string(name); - if (d < 0) - return -EINVAL; - - 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, TEMPLATE_INVALID)) - 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; -} |