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d6c9574f | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
ea430986 | 2 | |
a7334b09 LP |
3 | /*** |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
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 | |
a7334b09 LP |
11 | (at your option) any later version. |
12 | ||
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 | |
5430f7f2 | 16 | Lesser General Public License for more details. |
a7334b09 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
ea430986 | 22 | #include "log.h" |
718db961 | 23 | #include "sd-bus.h" |
cad45ba1 | 24 | #include "selinux-access.h" |
718db961 LP |
25 | #include "job.h" |
26 | #include "dbus-job.h" | |
8f8f05a9 | 27 | #include "dbus.h" |
718db961 LP |
28 | |
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); | |
31 | ||
283868e1 | 32 | static int verify_sys_admin_or_owner_sync(sd_bus_message *message, Job *j, sd_bus_error *error) { |
283868e1 SW |
33 | int r; |
34 | ||
35 | if (sd_bus_track_contains(j->clients, sd_bus_message_get_sender(message))) | |
36 | return 0; /* One of the job owners is calling us */ | |
37 | ||
38 | r = sd_bus_query_sender_privilege(message, CAP_SYS_ADMIN); | |
39 | if (r < 0) | |
40 | return r; | |
41 | if (r == 0) | |
42 | return sd_bus_error_setf(error, SD_BUS_ERROR_ACCESS_DENIED, "Access denied to perform action"); | |
43 | ||
44 | /* Root has called us */ | |
45 | return 0; | |
46 | } | |
47 | ||
718db961 LP |
48 | static int property_get_unit( |
49 | sd_bus *bus, | |
50 | const char *path, | |
51 | const char *interface, | |
52 | const char *property, | |
53 | sd_bus_message *reply, | |
ebcf1f97 LP |
54 | void *userdata, |
55 | sd_bus_error *error) { | |
ea430986 | 56 | |
68eda4bd | 57 | _cleanup_free_ char *p = NULL; |
718db961 | 58 | Job *j = userdata; |
86fbf370 | 59 | |
718db961 LP |
60 | assert(bus); |
61 | assert(reply); | |
86fbf370 LP |
62 | assert(j); |
63 | ||
cad45ba1 LP |
64 | p = unit_dbus_path(j->unit); |
65 | if (!p) | |
86fbf370 LP |
66 | return -ENOMEM; |
67 | ||
718db961 | 68 | return sd_bus_message_append(reply, "(so)", j->unit->id, p); |
86fbf370 LP |
69 | } |
70 | ||
2ea31e5b | 71 | int bus_job_method_cancel(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
718db961 | 72 | Job *j = userdata; |
ebcf1f97 | 73 | int r; |
ea430986 | 74 | |
718db961 | 75 | assert(bus); |
ea430986 | 76 | assert(message); |
718db961 | 77 | assert(j); |
86fbf370 | 78 | |
283868e1 SW |
79 | r = verify_sys_admin_or_owner_sync(message, j, error); |
80 | if (r < 0) | |
81 | return r; | |
82 | ||
8a188de9 | 83 | r = mac_selinux_unit_access_check(j->unit, message, "stop", error); |
ebcf1f97 LP |
84 | if (r < 0) |
85 | return r; | |
86 | ||
718db961 | 87 | job_finish_and_invalidate(j, JOB_CANCELED, true); |
2cccbca4 | 88 | |
df2d202e | 89 | return sd_bus_reply_method_return(message, NULL); |
ea430986 LP |
90 | } |
91 | ||
718db961 LP |
92 | const sd_bus_vtable bus_job_vtable[] = { |
93 | SD_BUS_VTABLE_START(0), | |
283868e1 | 94 | SD_BUS_METHOD("Cancel", NULL, NULL, bus_job_method_cancel, SD_BUS_VTABLE_UNPRIVILEGED), |
556089dc LP |
95 | SD_BUS_PROPERTY("Id", "u", NULL, offsetof(Job, id), SD_BUS_VTABLE_PROPERTY_CONST), |
96 | SD_BUS_PROPERTY("Unit", "(so)", property_get_unit, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
97 | SD_BUS_PROPERTY("JobType", "s", property_get_type, offsetof(Job, type), SD_BUS_VTABLE_PROPERTY_CONST), | |
718db961 LP |
98 | SD_BUS_PROPERTY("State", "s", property_get_state, offsetof(Job, state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
99 | SD_BUS_VTABLE_END | |
ea430986 | 100 | }; |
c1e1601e | 101 | |
8f8f05a9 | 102 | static int send_new_signal(sd_bus *bus, void *userdata) { |
718db961 | 103 | _cleanup_bus_message_unref_ sd_bus_message *m = NULL; |
1508e858 | 104 | _cleanup_free_ char *p = NULL; |
8f8f05a9 | 105 | Job *j = userdata; |
718db961 LP |
106 | int r; |
107 | ||
108 | assert(bus); | |
109 | assert(j); | |
c1e1601e | 110 | |
97e6a119 MS |
111 | p = job_dbus_path(j); |
112 | if (!p) | |
718db961 | 113 | return -ENOMEM; |
c1e1601e | 114 | |
718db961 LP |
115 | r = sd_bus_message_new_signal( |
116 | bus, | |
151b9b96 | 117 | &m, |
718db961 LP |
118 | "/org/freedesktop/systemd1", |
119 | "org.freedesktop.systemd1.Manager", | |
151b9b96 | 120 | "JobNew"); |
718db961 LP |
121 | if (r < 0) |
122 | return r; | |
123 | ||
124 | r = sd_bus_message_append(m, "uos", j->id, p, j->unit->id); | |
125 | if (r < 0) | |
126 | return r; | |
127 | ||
8f8f05a9 | 128 | return sd_bus_send(bus, m, NULL); |
c1e1601e LP |
129 | } |
130 | ||
8f8f05a9 | 131 | static int send_changed_signal(sd_bus *bus, void *userdata) { |
1508e858 | 132 | _cleanup_free_ char *p = NULL; |
8f8f05a9 | 133 | Job *j = userdata; |
718db961 LP |
134 | |
135 | assert(bus); | |
136 | assert(j); | |
c1e1601e | 137 | |
97e6a119 MS |
138 | p = job_dbus_path(j); |
139 | if (!p) | |
718db961 | 140 | return -ENOMEM; |
c1e1601e | 141 | |
718db961 | 142 | return sd_bus_emit_properties_changed(bus, p, "org.freedesktop.systemd1.Job", "State", NULL); |
97e6a119 MS |
143 | } |
144 | ||
145 | void bus_job_send_change_signal(Job *j) { | |
718db961 LP |
146 | int r; |
147 | ||
97e6a119 MS |
148 | assert(j); |
149 | ||
150 | if (j->in_dbus_queue) { | |
71fda00f | 151 | LIST_REMOVE(dbus_queue, j->manager->dbus_job_queue, j); |
97e6a119 MS |
152 | j->in_dbus_queue = false; |
153 | } | |
154 | ||
b39a2770 | 155 | r = bus_foreach_bus(j->manager, j->clients, j->sent_dbus_new_signal ? send_changed_signal : send_new_signal, j); |
718db961 | 156 | if (r < 0) |
da927ba9 | 157 | log_debug_errno(r, "Failed to send job change signal for %u: %m", j->id); |
97e6a119 MS |
158 | |
159 | j->sent_dbus_new_signal = true; | |
718db961 LP |
160 | } |
161 | ||
8f8f05a9 | 162 | static int send_removed_signal(sd_bus *bus, void *userdata) { |
718db961 LP |
163 | _cleanup_bus_message_unref_ sd_bus_message *m = NULL; |
164 | _cleanup_free_ char *p = NULL; | |
8f8f05a9 | 165 | Job *j = userdata; |
718db961 LP |
166 | int r; |
167 | ||
168 | assert(bus); | |
169 | assert(j); | |
170 | ||
171 | p = job_dbus_path(j); | |
172 | if (!p) | |
173 | return -ENOMEM; | |
c1e1601e | 174 | |
718db961 LP |
175 | r = sd_bus_message_new_signal( |
176 | bus, | |
151b9b96 | 177 | &m, |
718db961 LP |
178 | "/org/freedesktop/systemd1", |
179 | "org.freedesktop.systemd1.Manager", | |
151b9b96 | 180 | "JobRemoved"); |
718db961 LP |
181 | if (r < 0) |
182 | return r; | |
183 | ||
184 | r = sd_bus_message_append(m, "uoss", j->id, p, j->unit->id, job_result_to_string(j->result)); | |
185 | if (r < 0) | |
186 | return r; | |
187 | ||
8f8f05a9 | 188 | return sd_bus_send(bus, m, NULL); |
97e6a119 | 189 | } |
c1e1601e | 190 | |
97e6a119 | 191 | void bus_job_send_removed_signal(Job *j) { |
718db961 | 192 | int r; |
c1e1601e | 193 | |
718db961 | 194 | assert(j); |
97e6a119 MS |
195 | |
196 | if (!j->sent_dbus_new_signal) | |
197 | bus_job_send_change_signal(j); | |
198 | ||
b39a2770 | 199 | r = bus_foreach_bus(j->manager, j->clients, send_removed_signal, j); |
718db961 | 200 | if (r < 0) |
da927ba9 | 201 | log_debug_errno(r, "Failed to send job remove signal for %u: %m", j->id); |
c1e1601e | 202 | } |