+++ /dev/null
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2013 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 "selinux-access.h"
-#include "unit.h"
-#include "scope.h"
-#include "dbus.h"
-#include "bus-util.h"
-#include "bus-internal.h"
-#include "bus-common-errors.h"
-#include "dbus-unit.h"
-#include "dbus-cgroup.h"
-#include "dbus-kill.h"
-#include "dbus-scope.h"
-
-static int bus_scope_abandon(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
- Scope *s = userdata;
- int r;
-
- assert(bus);
- assert(message);
- assert(s);
-
- r = mac_selinux_unit_access_check(UNIT(s), message, "stop", error);
- if (r < 0)
- return r;
-
- r = bus_verify_manage_units_async(UNIT(s)->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 = scope_abandon(s);
- if (r == -ESTALE)
- return sd_bus_error_setf(error, BUS_ERROR_SCOPE_NOT_RUNNING, "Scope %s is not running, cannot abandon.", UNIT(s)->id);
- if (r < 0)
- return r;
-
- return sd_bus_reply_method_return(message, NULL);
-}
-
-static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_result, scope_result, ScopeResult);
-
-const sd_bus_vtable bus_scope_vtable[] = {
- SD_BUS_VTABLE_START(0),
- SD_BUS_PROPERTY("Controller", "s", NULL, offsetof(Scope, controller), SD_BUS_VTABLE_PROPERTY_CONST),
- SD_BUS_PROPERTY("TimeoutStopUSec", "t", bus_property_get_usec, offsetof(Scope, timeout_stop_usec), SD_BUS_VTABLE_PROPERTY_CONST),
- SD_BUS_PROPERTY("Result", "s", property_get_result, offsetof(Scope, result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
- SD_BUS_SIGNAL("RequestStop", NULL, 0),
- SD_BUS_METHOD("Abandon", NULL, NULL, bus_scope_abandon, SD_BUS_VTABLE_UNPRIVILEGED),
- SD_BUS_VTABLE_END
-};
-
-static int bus_scope_set_transient_property(
- Scope *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, "PIDs")) {
- unsigned n = 0;
- uint32_t pid;
-
- r = sd_bus_message_enter_container(message, 'a', "u");
- if (r < 0)
- return r;
-
- while ((r = sd_bus_message_read(message, "u", &pid)) > 0) {
-
- if (pid <= 1)
- return -EINVAL;
-
- if (mode != UNIT_CHECK) {
- r = unit_watch_pid(UNIT(s), pid);
- if (r < 0 && r != -EEXIST)
- return r;
- }
-
- n++;
- }
- if (r < 0)
- return r;
-
- r = sd_bus_message_exit_container(message);
- if (r < 0)
- return r;
-
- if (n <= 0)
- return -EINVAL;
-
- return 1;
-
- } else if (streq(name, "Controller")) {
- const char *controller;
- char *c;
-
- r = sd_bus_message_read(message, "s", &controller);
- if (r < 0)
- return r;
-
- if (!isempty(controller) && !service_name_is_valid(controller))
- return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Controller '%s' is not a valid bus name.", controller);
-
- if (mode != UNIT_CHECK) {
- if (isempty(controller))
- c = NULL;
- else {
- c = strdup(controller);
- if (!c)
- return -ENOMEM;
- }
-
- free(s->controller);
- s->controller = c;
- }
-
- return 1;
-
- } else if (streq(name, "TimeoutStopUSec")) {
-
- if (mode != UNIT_CHECK) {
- r = sd_bus_message_read(message, "t", &s->timeout_stop_usec);
- if (r < 0)
- return r;
-
- unit_write_drop_in_format(UNIT(s), mode, name, "[Scope]\nTimeoutStopSec="USEC_FMT"us\n", s->timeout_stop_usec);
- } else {
- r = sd_bus_message_skip(message, "t");
- if (r < 0)
- return r;
- }
-
- return 1;
- }
-
- return 0;
-}
-
-int bus_scope_set_property(
- Unit *u,
- const char *name,
- sd_bus_message *message,
- UnitSetPropertiesMode mode,
- sd_bus_error *error) {
-
- Scope *s = SCOPE(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->load_state == UNIT_STUB) {
- /* While we are created we still accept PIDs */
-
- r = bus_scope_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_scope_commit_properties(Unit *u) {
- assert(u);
-
- unit_update_cgroup_members_masks(u);
- unit_realize_cgroup(u);
-
- return 0;
-}
-
-int bus_scope_send_request_stop(Scope *s) {
- _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
- _cleanup_free_ char *p = NULL;
- int r;
-
- assert(s);
-
- if (!s->controller)
- return 0;
-
- p = unit_dbus_path(UNIT(s));
- if (!p)
- return -ENOMEM;
-
- r = sd_bus_message_new_signal(
- UNIT(s)->manager->api_bus,
- &m,
- p,
- "org.freedesktop.systemd1.Scope",
- "RequestStop");
- if (r < 0)
- return r;
-
- return sd_bus_send_to(UNIT(s)->manager->api_bus, m, /* s->controller */ NULL, NULL);
-}
~ianmdlvl / elogind.git / blobdiff