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ea430986 LP |
1 | /*-*- Mode: C; c-basic-offset: 8 -*-*/ |
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 | |
9 | under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
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 | |
16 | General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
86fbf370 LP |
22 | #include <errno.h> |
23 | ||
ea430986 LP |
24 | #include "dbus.h" |
25 | #include "log.h" | |
26 | ||
27 | static const char introspection[] = | |
28 | DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE | |
29 | "<node>" | |
30 | " <interface name=\"org.freedesktop.systemd1.Job\">" | |
b548631a | 31 | " <method name=\"Cancel\"/>" |
86fbf370 LP |
32 | " <property name=\"Id\" type=\"u\" access=\"read\"/>" |
33 | " <property name=\"Unit\" type=\"(so)\" access=\"read\"/>" | |
b548631a | 34 | " <property name=\"JobType\" type=\"s\" access=\"read\"/>" |
86fbf370 | 35 | " <property name=\"State\" type=\"s\" access=\"read\"/>" |
ea430986 LP |
36 | " </interface>" |
37 | BUS_PROPERTIES_INTERFACE | |
38 | BUS_INTROSPECTABLE_INTERFACE | |
39 | "</node>"; | |
40 | ||
86fbf370 LP |
41 | static int bus_job_append_state(Manager *m, DBusMessageIter *i, const char *property, void *data) { |
42 | Job *j = data; | |
43 | const char *state; | |
44 | ||
45 | assert(m); | |
46 | assert(i); | |
47 | assert(property); | |
48 | assert(j); | |
49 | ||
50 | state = job_state_to_string(j->state); | |
51 | ||
52 | if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &state)) | |
53 | return -ENOMEM; | |
54 | ||
55 | return 0; | |
56 | } | |
57 | ||
58 | static int bus_job_append_type(Manager *m, DBusMessageIter *i, const char *property, void *data) { | |
59 | Job *j = data; | |
60 | const char *type; | |
61 | ||
62 | assert(m); | |
63 | assert(i); | |
64 | assert(property); | |
65 | assert(j); | |
66 | ||
67 | type = job_type_to_string(j->type); | |
68 | ||
69 | if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &type)) | |
70 | return -ENOMEM; | |
71 | ||
72 | return 0; | |
73 | } | |
74 | ||
75 | static int bus_job_append_unit(Manager *m, DBusMessageIter *i, const char *property, void *data) { | |
76 | Job *j = data; | |
77 | DBusMessageIter sub; | |
78 | char *p; | |
79 | const char *id; | |
80 | ||
81 | assert(m); | |
82 | assert(i); | |
83 | assert(property); | |
84 | assert(j); | |
85 | ||
86 | if (!dbus_message_iter_open_container(i, DBUS_TYPE_STRUCT, NULL, &sub)) | |
87 | return -ENOMEM; | |
88 | ||
89 | if (!(p = unit_dbus_path(j->unit))) | |
90 | return -ENOMEM; | |
91 | ||
92 | id = unit_id(j->unit); | |
93 | ||
94 | if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &id) || | |
95 | !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &p)) { | |
96 | free(p); | |
97 | return -ENOMEM; | |
98 | } | |
99 | ||
100 | free(p); | |
101 | ||
102 | if (!dbus_message_iter_close_container(i, &sub)) | |
103 | return -ENOMEM; | |
104 | ||
105 | return 0; | |
106 | } | |
107 | ||
108 | static DBusHandlerResult bus_job_message_dispatch(Job *j, DBusMessage *message) { | |
86fbf370 | 109 | const BusProperty properties[] = { |
b548631a LP |
110 | { "org.freedesktop.systemd1.Job", "Id", bus_property_append_uint32, "u", &j->id }, |
111 | { "org.freedesktop.systemd1.Job", "State", bus_job_append_state, "s", j }, | |
112 | { "org.freedesktop.systemd1.Job", "JobType", bus_job_append_type, "s", j }, | |
113 | { "org.freedesktop.systemd1.Job", "Unit", bus_job_append_unit, "(so)", j }, | |
86fbf370 LP |
114 | { NULL, NULL, NULL, NULL, NULL } |
115 | }; | |
116 | ||
b548631a LP |
117 | DBusMessage *reply = NULL; |
118 | Manager *m = j->manager; | |
119 | ||
120 | if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Job", "Cancel")) { | |
121 | if (!(reply = dbus_message_new_method_return(message))) | |
122 | goto oom; | |
123 | ||
124 | job_free(j); | |
125 | ||
126 | } else | |
127 | return bus_default_message_handler(j->manager, message, introspection, properties); | |
128 | ||
129 | if (reply) { | |
130 | if (!dbus_connection_send(m->bus, reply, NULL)) | |
131 | goto oom; | |
132 | ||
133 | dbus_message_unref(reply); | |
134 | } | |
135 | ||
136 | return DBUS_HANDLER_RESULT_HANDLED; | |
137 | ||
138 | oom: | |
139 | if (reply) | |
140 | dbus_message_unref(reply); | |
141 | ||
142 | return DBUS_HANDLER_RESULT_NEED_MEMORY; | |
86fbf370 LP |
143 | } |
144 | ||
ea430986 LP |
145 | DBusHandlerResult bus_job_message_handler(DBusConnection *connection, DBusMessage *message, void *data) { |
146 | Manager *m = data; | |
86fbf370 LP |
147 | Job *j; |
148 | int r; | |
ea430986 LP |
149 | |
150 | assert(connection); | |
151 | assert(message); | |
152 | assert(m); | |
153 | ||
154 | log_debug("Got D-Bus request: %s.%s() on %s", | |
155 | dbus_message_get_interface(message), | |
156 | dbus_message_get_member(message), | |
157 | dbus_message_get_path(message)); | |
158 | ||
86fbf370 LP |
159 | if ((r = manager_get_job_from_dbus_path(m, dbus_message_get_path(message), &j)) < 0) { |
160 | ||
161 | if (r == -ENOMEM) | |
162 | return DBUS_HANDLER_RESULT_NEED_MEMORY; | |
163 | ||
164 | if (r == -ENOENT) | |
165 | return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; | |
166 | ||
167 | return bus_send_error_reply(m, message, NULL, r); | |
168 | } | |
169 | ||
170 | return bus_job_message_dispatch(j, message); | |
ea430986 LP |
171 | } |
172 | ||
173 | const DBusObjectPathVTable bus_job_vtable = { | |
174 | .message_function = bus_job_message_handler | |
175 | }; |