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9444b1f2 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2011 Lennart Poettering | |
7 | ||
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. | |
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 | Lesser General Public License for more details. | |
17 | ||
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/>. | |
20 | ***/ | |
21 | ||
22 | #include <errno.h> | |
23 | #include <string.h> | |
24 | ||
c3350683 | 25 | #include "bus-util.h" |
1ee306e1 | 26 | #include "machine.h" |
9444b1f2 | 27 | |
c3350683 LP |
28 | static int property_get_id( |
29 | sd_bus *bus, | |
30 | const char *path, | |
31 | const char *interface, | |
32 | const char *property, | |
33 | sd_bus_message *reply, | |
34 | sd_bus_error *error, | |
35 | void *userdata) { | |
9444b1f2 | 36 | |
c3350683 LP |
37 | Machine *m = userdata; |
38 | int r; | |
9444b1f2 | 39 | |
c3350683 LP |
40 | assert(bus); |
41 | assert(reply); | |
42 | assert(m); | |
43 | ||
44 | r = sd_bus_message_append_array(reply, 'y', &m->id, 16); | |
45 | if (r < 0) | |
46 | return r; | |
9444b1f2 | 47 | |
c3350683 | 48 | return 1; |
9444b1f2 LP |
49 | } |
50 | ||
c3350683 LP |
51 | static int property_get_state( |
52 | sd_bus *bus, | |
53 | const char *path, | |
54 | const char *interface, | |
55 | const char *property, | |
56 | sd_bus_message *reply, | |
57 | sd_bus_error *error, | |
58 | void *userdata) { | |
59 | ||
60 | Machine *m = userdata; | |
fb6becb4 | 61 | const char *state; |
c3350683 | 62 | int r; |
fb6becb4 | 63 | |
c3350683 LP |
64 | assert(bus); |
65 | assert(reply); | |
fb6becb4 LP |
66 | assert(m); |
67 | ||
68 | state = machine_state_to_string(machine_get_state(m)); | |
69 | ||
c3350683 LP |
70 | r = sd_bus_message_append_basic(reply, 's', state); |
71 | if (r < 0) | |
72 | return r; | |
fb6becb4 | 73 | |
c3350683 | 74 | return 1; |
fb6becb4 LP |
75 | } |
76 | ||
c3350683 | 77 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_class, machine_class, MachineClass); |
9444b1f2 | 78 | |
c3350683 LP |
79 | static int method_terminate(sd_bus *bus, sd_bus_message *message, void *userdata) { |
80 | Machine *m = userdata; | |
81 | int r; | |
9444b1f2 | 82 | |
c3350683 LP |
83 | assert(bus); |
84 | assert(message); | |
85 | assert(m); | |
9444b1f2 | 86 | |
c3350683 LP |
87 | r = machine_stop(m); |
88 | if (r < 0) | |
89 | return sd_bus_reply_method_errno(bus, message, r, NULL); | |
9444b1f2 | 90 | |
c3350683 | 91 | return sd_bus_reply_method_return(bus, message, NULL); |
9444b1f2 LP |
92 | } |
93 | ||
c3350683 LP |
94 | static int method_kill(sd_bus *bus, sd_bus_message *message, void *userdata) { |
95 | Machine *m = userdata; | |
96 | const char *swho; | |
97 | int32_t signo; | |
98 | KillWho who; | |
9444b1f2 LP |
99 | int r; |
100 | ||
c3350683 | 101 | assert(bus); |
9444b1f2 | 102 | assert(message); |
c3350683 | 103 | assert(m); |
9444b1f2 | 104 | |
c3350683 LP |
105 | r = sd_bus_message_read(message, "si", &swho, &signo); |
106 | if (r < 0) | |
107 | return sd_bus_reply_method_errno(bus, message, r, NULL); | |
9444b1f2 | 108 | |
c3350683 LP |
109 | if (isempty(swho)) |
110 | who = KILL_ALL; | |
111 | else { | |
112 | who = kill_who_from_string(swho); | |
113 | if (who < 0) | |
114 | return sd_bus_reply_method_errorf(bus, message, SD_BUS_ERROR_INVALID_ARGS, "Invalid kill parameter '%s'", swho); | |
9444b1f2 LP |
115 | } |
116 | ||
c3350683 LP |
117 | if (signo <= 0 || signo >= _NSIG) |
118 | return sd_bus_reply_method_errorf(bus, message, SD_BUS_ERROR_INVALID_ARGS, "Invalid signal %i", signo); | |
9444b1f2 | 119 | |
c3350683 LP |
120 | r = machine_kill(m, who, signo); |
121 | if (r < 0) | |
122 | return sd_bus_reply_method_errno(bus, message, r, NULL); | |
9444b1f2 | 123 | |
c3350683 | 124 | return sd_bus_reply_method_return(bus, message, NULL); |
9444b1f2 LP |
125 | } |
126 | ||
c3350683 LP |
127 | const sd_bus_vtable machine_vtable[] = { |
128 | SD_BUS_VTABLE_START(0), | |
129 | SD_BUS_PROPERTY("Name", "s", NULL, offsetof(Machine, name), 0), | |
130 | SD_BUS_PROPERTY("Id", "ay", property_get_id, 0, 0), | |
131 | SD_BUS_PROPERTY("Timestamp", "t", NULL, offsetof(Machine, timestamp.realtime), 0), | |
132 | SD_BUS_PROPERTY("TimestampMonotonic", "t", NULL, offsetof(Machine, timestamp.monotonic), 0), | |
133 | SD_BUS_PROPERTY("Service", "s", NULL, offsetof(Machine, service), 0), | |
134 | SD_BUS_PROPERTY("Scope", "s", NULL, offsetof(Machine, scope), 0), | |
135 | SD_BUS_PROPERTY("Leader", "u", NULL, offsetof(Machine, leader), 0), | |
136 | SD_BUS_PROPERTY("Class", "s", property_get_class, offsetof(Machine, class), 0), | |
137 | SD_BUS_PROPERTY("State", "s", property_get_state, 0, 0), | |
138 | SD_BUS_PROPERTY("RootDirectory", "s", NULL, offsetof(Machine, root_directory), 0), | |
139 | SD_BUS_METHOD("Terminate", NULL, NULL, method_terminate, 0), | |
140 | SD_BUS_METHOD("Kill", "si", NULL, method_kill, 0), | |
141 | SD_BUS_VTABLE_END | |
142 | }; | |
9444b1f2 | 143 | |
c3350683 LP |
144 | int machine_object_find(sd_bus *bus, const char *path, const char *interface, void **found, void *userdata) { |
145 | _cleanup_free_ char *e = NULL; | |
146 | Manager *m = userdata; | |
147 | Machine *machine; | |
148 | const char *p; | |
9444b1f2 | 149 | |
c3350683 LP |
150 | assert(bus); |
151 | assert(path); | |
152 | assert(interface); | |
153 | assert(found); | |
154 | assert(m); | |
9444b1f2 | 155 | |
c3350683 LP |
156 | p = startswith(path, "/org/freedesktop/machine1/machine/"); |
157 | if (!p) | |
158 | return 0; | |
9444b1f2 | 159 | |
c3350683 LP |
160 | e = bus_path_unescape(p); |
161 | if (!e) | |
162 | return -ENOMEM; | |
9444b1f2 | 163 | |
c3350683 LP |
164 | machine = hashmap_get(m->machines, e); |
165 | if (!machine) | |
166 | return 0; | |
9444b1f2 | 167 | |
c3350683 LP |
168 | *found = machine; |
169 | return 1; | |
9444b1f2 LP |
170 | } |
171 | ||
9444b1f2 LP |
172 | char *machine_bus_path(Machine *m) { |
173 | _cleanup_free_ char *e = NULL; | |
174 | ||
175 | assert(m); | |
176 | ||
177 | e = bus_path_escape(m->name); | |
178 | if (!e) | |
179 | return NULL; | |
180 | ||
1ee306e1 | 181 | return strappend("/org/freedesktop/machine1/machine/", e); |
9444b1f2 LP |
182 | } |
183 | ||
184 | int machine_send_signal(Machine *m, bool new_machine) { | |
9444b1f2 LP |
185 | _cleanup_free_ char *p = NULL; |
186 | ||
187 | assert(m); | |
188 | ||
9444b1f2 LP |
189 | p = machine_bus_path(m); |
190 | if (!p) | |
191 | return -ENOMEM; | |
192 | ||
c3350683 LP |
193 | return sd_bus_emit_signal( |
194 | m->manager->bus, | |
195 | "/org/freedesktop/machine1", | |
196 | "org.freedesktop.machine1.Manager", | |
197 | new_machine ? "MachineNew" : "MachineRemoved", | |
198 | "so", m->name, p); | |
9444b1f2 LP |
199 | } |
200 | ||
c3350683 LP |
201 | int machine_send_create_reply(Machine *m, sd_bus_error *error) { |
202 | _cleanup_bus_message_unref_ sd_bus_message *c = NULL; | |
9444b1f2 LP |
203 | _cleanup_free_ char *p = NULL; |
204 | ||
205 | assert(m); | |
206 | ||
fb6becb4 LP |
207 | if (!m->create_message) |
208 | return 0; | |
209 | ||
c3350683 LP |
210 | c = m->create_message; |
211 | m->create_message = NULL; | |
fb6becb4 | 212 | |
76e66585 LP |
213 | /* Update the machine state file before we notify the client |
214 | * about the result. */ | |
215 | machine_save(m); | |
216 | ||
c3350683 LP |
217 | if (error) |
218 | return sd_bus_reply_method_error(m->manager->bus, c, error); | |
fb6becb4 | 219 | |
c3350683 LP |
220 | p = machine_bus_path(m); |
221 | if (!p) | |
222 | return -ENOMEM; | |
fb6becb4 | 223 | |
c3350683 | 224 | return sd_bus_reply_method_return(m->manager->bus, c, "o", p); |
fb6becb4 | 225 | } |