1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
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 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
24 #include "selinux-access.h"
29 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, job_type, JobType);
30 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_state, job_state, JobState);
32 static int verify_sys_admin_or_owner_sync(sd_bus_message *message, Job *j, sd_bus_error *error) {
33 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
36 if (sd_bus_track_contains(j->clients, sd_bus_message_get_sender(message)))
37 return 0; /* One of the job owners is calling us */
39 r = sd_bus_query_sender_privilege(message, CAP_SYS_ADMIN);
43 return sd_bus_error_setf(error, SD_BUS_ERROR_ACCESS_DENIED, "Access denied to perform action");
45 /* Root has called us */
49 static int property_get_unit(
52 const char *interface,
54 sd_bus_message *reply,
56 sd_bus_error *error) {
58 _cleanup_free_ char *p = NULL;
65 p = unit_dbus_path(j->unit);
69 return sd_bus_message_append(reply, "(so)", j->unit->id, p);
72 int bus_job_method_cancel(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
80 r = verify_sys_admin_or_owner_sync(message, j, error);
84 r = selinux_unit_access_check(j->unit, message, "stop", error);
88 job_finish_and_invalidate(j, JOB_CANCELED, true);
90 return sd_bus_reply_method_return(message, NULL);
93 const sd_bus_vtable bus_job_vtable[] = {
94 SD_BUS_VTABLE_START(0),
95 SD_BUS_METHOD("Cancel", NULL, NULL, bus_job_method_cancel, SD_BUS_VTABLE_UNPRIVILEGED),
96 SD_BUS_PROPERTY("Id", "u", NULL, offsetof(Job, id), SD_BUS_VTABLE_PROPERTY_CONST),
97 SD_BUS_PROPERTY("Unit", "(so)", property_get_unit, 0, SD_BUS_VTABLE_PROPERTY_CONST),
98 SD_BUS_PROPERTY("JobType", "s", property_get_type, offsetof(Job, type), SD_BUS_VTABLE_PROPERTY_CONST),
99 SD_BUS_PROPERTY("State", "s", property_get_state, offsetof(Job, state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
103 static int send_new_signal(sd_bus *bus, void *userdata) {
104 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
105 _cleanup_free_ char *p = NULL;
112 p = job_dbus_path(j);
116 r = sd_bus_message_new_signal(
119 "/org/freedesktop/systemd1",
120 "org.freedesktop.systemd1.Manager",
125 r = sd_bus_message_append(m, "uos", j->id, p, j->unit->id);
129 return sd_bus_send(bus, m, NULL);
132 static int send_changed_signal(sd_bus *bus, void *userdata) {
133 _cleanup_free_ char *p = NULL;
139 p = job_dbus_path(j);
143 return sd_bus_emit_properties_changed(bus, p, "org.freedesktop.systemd1.Job", "State", NULL);
146 void bus_job_send_change_signal(Job *j) {
151 if (j->in_dbus_queue) {
152 LIST_REMOVE(dbus_queue, j->manager->dbus_job_queue, j);
153 j->in_dbus_queue = false;
156 r = bus_foreach_bus(j->manager, j->clients, j->sent_dbus_new_signal ? send_changed_signal : send_new_signal, j);
158 log_debug("Failed to send job change signal for %u: %s", j->id, strerror(-r));
160 j->sent_dbus_new_signal = true;
163 static int send_removed_signal(sd_bus *bus, void *userdata) {
164 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
165 _cleanup_free_ char *p = NULL;
172 p = job_dbus_path(j);
176 r = sd_bus_message_new_signal(
179 "/org/freedesktop/systemd1",
180 "org.freedesktop.systemd1.Manager",
185 r = sd_bus_message_append(m, "uoss", j->id, p, j->unit->id, job_result_to_string(j->result));
189 return sd_bus_send(bus, m, NULL);
192 void bus_job_send_removed_signal(Job *j) {
197 if (!j->sent_dbus_new_signal)
198 bus_job_send_change_signal(j);
200 r = bus_foreach_bus(j->manager, j->clients, send_removed_signal, j);
202 log_debug("Failed to send job remove signal for %u: %s", j->id, strerror(-r));