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