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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" | |
27 | #include "dbus-client-track.h" | |
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 | ||
32 | static int property_get_unit( | |
33 | sd_bus *bus, | |
34 | const char *path, | |
35 | const char *interface, | |
36 | const char *property, | |
37 | sd_bus_message *reply, | |
ebcf1f97 LP |
38 | void *userdata, |
39 | sd_bus_error *error) { | |
ea430986 | 40 | |
68eda4bd | 41 | _cleanup_free_ char *p = NULL; |
718db961 | 42 | Job *j = userdata; |
86fbf370 | 43 | |
718db961 LP |
44 | assert(bus); |
45 | assert(reply); | |
86fbf370 LP |
46 | assert(j); |
47 | ||
cad45ba1 LP |
48 | p = unit_dbus_path(j->unit); |
49 | if (!p) | |
86fbf370 LP |
50 | return -ENOMEM; |
51 | ||
718db961 | 52 | return sd_bus_message_append(reply, "(so)", j->unit->id, p); |
86fbf370 LP |
53 | } |
54 | ||
ebcf1f97 | 55 | static int method_cancel(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
718db961 | 56 | Job *j = userdata; |
ebcf1f97 | 57 | int r; |
ea430986 | 58 | |
718db961 | 59 | assert(bus); |
ea430986 | 60 | assert(message); |
718db961 | 61 | assert(j); |
86fbf370 | 62 | |
ebcf1f97 LP |
63 | r = selinux_unit_access_check(j->unit, bus, message, "stop", error); |
64 | if (r < 0) | |
65 | return r; | |
66 | ||
718db961 | 67 | job_finish_and_invalidate(j, JOB_CANCELED, true); |
2cccbca4 | 68 | |
df2d202e | 69 | return sd_bus_reply_method_return(message, NULL); |
ea430986 LP |
70 | } |
71 | ||
718db961 LP |
72 | const sd_bus_vtable bus_job_vtable[] = { |
73 | SD_BUS_VTABLE_START(0), | |
74 | SD_BUS_METHOD("Cancel", NULL, NULL, method_cancel, 0), | |
75 | SD_BUS_PROPERTY("Id", "u", NULL, offsetof(Job, id), 0), | |
76 | SD_BUS_PROPERTY("Unit", "(so)", property_get_unit, 0, 0), | |
77 | SD_BUS_PROPERTY("JobType", "s", property_get_type, offsetof(Job, type), 0), | |
78 | SD_BUS_PROPERTY("State", "s", property_get_state, offsetof(Job, state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
79 | SD_BUS_VTABLE_END | |
ea430986 | 80 | }; |
c1e1601e | 81 | |
718db961 LP |
82 | static int foreach_client(Job *j, int (*send_message)(sd_bus *bus, const char *name, Job *j)) { |
83 | BusTrackedClient *one_destination = NULL; | |
84 | Iterator i; | |
85 | sd_bus *b; | |
86 | unsigned n, m; | |
a567261a LP |
87 | int r; |
88 | ||
89 | assert(j); | |
718db961 | 90 | assert(send_message); |
a567261a | 91 | |
718db961 LP |
92 | n = set_size(j->manager->subscribed); |
93 | m = set_size(j->subscribed); | |
84286536 | 94 | |
718db961 LP |
95 | if (n <= 0 && m <= 0) |
96 | return 0; | |
97e6a119 | 97 | |
718db961 LP |
98 | if (n == 1 && m == 0) |
99 | one_destination = set_first(j->manager->subscribed); | |
100 | else if (n == 0 && m == 1) | |
101 | one_destination = set_first(j->subscribed); | |
102 | else | |
103 | one_destination = NULL; | |
a567261a | 104 | |
718db961 LP |
105 | if (one_destination) |
106 | return send_message(one_destination->bus, isempty(one_destination->name) ? NULL : one_destination->name, j); | |
a567261a | 107 | |
718db961 LP |
108 | /* Send to everybody */ |
109 | SET_FOREACH(b, j->manager->private_buses, i) { | |
110 | r = send_message(b, NULL, j); | |
111 | if (r < 0) | |
112 | return r; | |
a567261a LP |
113 | } |
114 | ||
718db961 LP |
115 | if (j->manager->api_bus) |
116 | return send_message(j->manager->api_bus, NULL, j); | |
117 | ||
a567261a LP |
118 | return 0; |
119 | } | |
120 | ||
718db961 LP |
121 | static int send_new_signal(sd_bus *bus, const char *destination, Job *j) { |
122 | _cleanup_bus_message_unref_ sd_bus_message *m = NULL; | |
1508e858 | 123 | _cleanup_free_ char *p = NULL; |
718db961 LP |
124 | int r; |
125 | ||
126 | assert(bus); | |
127 | assert(j); | |
c1e1601e | 128 | |
97e6a119 MS |
129 | p = job_dbus_path(j); |
130 | if (!p) | |
718db961 | 131 | return -ENOMEM; |
c1e1601e | 132 | |
718db961 LP |
133 | r = sd_bus_message_new_signal( |
134 | bus, | |
135 | "/org/freedesktop/systemd1", | |
136 | "org.freedesktop.systemd1.Manager", | |
137 | "JobNew", | |
138 | &m); | |
139 | if (r < 0) | |
140 | return r; | |
141 | ||
142 | r = sd_bus_message_append(m, "uos", j->id, p, j->unit->id); | |
143 | if (r < 0) | |
144 | return r; | |
145 | ||
146 | return sd_bus_send_to(bus, m, destination, NULL); | |
c1e1601e LP |
147 | } |
148 | ||
718db961 | 149 | static int send_changed_signal(sd_bus *bus, const char *destination, Job *j) { |
1508e858 | 150 | _cleanup_free_ char *p = NULL; |
718db961 LP |
151 | |
152 | assert(bus); | |
153 | assert(j); | |
c1e1601e | 154 | |
97e6a119 MS |
155 | p = job_dbus_path(j); |
156 | if (!p) | |
718db961 | 157 | return -ENOMEM; |
c1e1601e | 158 | |
718db961 | 159 | return sd_bus_emit_properties_changed(bus, p, "org.freedesktop.systemd1.Job", "State", NULL); |
97e6a119 MS |
160 | } |
161 | ||
162 | void bus_job_send_change_signal(Job *j) { | |
718db961 LP |
163 | int r; |
164 | ||
97e6a119 MS |
165 | assert(j); |
166 | ||
167 | if (j->in_dbus_queue) { | |
71fda00f | 168 | LIST_REMOVE(dbus_queue, j->manager->dbus_job_queue, j); |
97e6a119 MS |
169 | j->in_dbus_queue = false; |
170 | } | |
171 | ||
718db961 LP |
172 | r = foreach_client(j, j->sent_dbus_new_signal ? send_changed_signal : send_new_signal); |
173 | if (r < 0) | |
174 | log_warning("Failed to send job change signal for %u/%s: %s", j->id, j->unit->id, strerror(-r)); | |
97e6a119 MS |
175 | |
176 | j->sent_dbus_new_signal = true; | |
718db961 LP |
177 | } |
178 | ||
179 | static int send_removed_signal(sd_bus *bus, const char *destination, Job *j) { | |
180 | _cleanup_bus_message_unref_ sd_bus_message *m = NULL; | |
181 | _cleanup_free_ char *p = NULL; | |
182 | int r; | |
183 | ||
184 | assert(bus); | |
185 | assert(j); | |
186 | ||
187 | p = job_dbus_path(j); | |
188 | if (!p) | |
189 | return -ENOMEM; | |
c1e1601e | 190 | |
c1e1601e | 191 | |
718db961 LP |
192 | r = sd_bus_message_new_signal( |
193 | bus, | |
194 | "/org/freedesktop/systemd1", | |
195 | "org.freedesktop.systemd1.Manager", | |
196 | "JobRemoved", | |
197 | &m); | |
198 | if (r < 0) | |
199 | return r; | |
200 | ||
201 | r = sd_bus_message_append(m, "uoss", j->id, p, j->unit->id, job_result_to_string(j->result)); | |
202 | if (r < 0) | |
203 | return r; | |
204 | ||
205 | return sd_bus_send_to(bus, m, destination, NULL); | |
97e6a119 | 206 | } |
c1e1601e | 207 | |
97e6a119 | 208 | void bus_job_send_removed_signal(Job *j) { |
718db961 | 209 | int r; |
c1e1601e | 210 | |
718db961 | 211 | assert(j); |
97e6a119 MS |
212 | |
213 | if (!j->sent_dbus_new_signal) | |
214 | bus_job_send_change_signal(j); | |
215 | ||
718db961 LP |
216 | r = foreach_client(j, send_removed_signal); |
217 | if (r < 0) | |
218 | log_warning("Failed to send job removal signal for %u/%s: %s", j->id, j->unit->id, strerror(-r)); | |
219 | return; | |
c1e1601e | 220 | } |