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7640a5de LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
41550d40 | 6 | Copyright 2011 Lennart Poettering |
7640a5de LP |
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 | |
7640a5de 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. |
7640a5de | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
7640a5de LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
7640a5de LP |
22 | #include <errno.h> |
23 | #include <string.h> | |
24 | #include <unistd.h> | |
f426cc5d | 25 | #include <sys/utsname.h> |
7640a5de LP |
26 | |
27 | #include "util.h" | |
28 | #include "strv.h" | |
ad740100 | 29 | #include "def.h" |
b52aae1d | 30 | #include "virt.h" |
4d1a6904 | 31 | #include "env-util.h" |
a5c32cff HH |
32 | #include "fileio-label.h" |
33 | #include "label.h" | |
66a4c743 LP |
34 | #include "bus-util.h" |
35 | #include "event-util.h" | |
91f9dcaf | 36 | |
799298d6 JG |
37 | #define VALID_DEPLOYMENT_CHARS (DIGITS LETTERS "-.:") |
38 | ||
7640a5de LP |
39 | enum { |
40 | PROP_HOSTNAME, | |
41 | PROP_STATIC_HOSTNAME, | |
42 | PROP_PRETTY_HOSTNAME, | |
43 | PROP_ICON_NAME, | |
7871c8e9 | 44 | PROP_CHASSIS, |
799298d6 | 45 | PROP_DEPLOYMENT, |
ce0f1493 | 46 | PROP_LOCATION, |
f426cc5d DH |
47 | PROP_KERNEL_NAME, |
48 | PROP_KERNEL_RELEASE, | |
9be3455f | 49 | PROP_KERNEL_VERSION, |
44c32988 DH |
50 | PROP_OS_PRETTY_NAME, |
51 | PROP_OS_CPE_NAME, | |
7640a5de LP |
52 | _PROP_MAX |
53 | }; | |
54 | ||
66a4c743 LP |
55 | typedef struct Context { |
56 | char *data[_PROP_MAX]; | |
57 | Hashmap *polkit_registry; | |
58 | } Context; | |
ad740100 | 59 | |
66a4c743 | 60 | static void context_reset(Context *c) { |
7640a5de LP |
61 | int p; |
62 | ||
66a4c743 LP |
63 | assert(c); |
64 | ||
7640a5de | 65 | for (p = 0; p < _PROP_MAX; p++) { |
66a4c743 LP |
66 | free(c->data[p]); |
67 | c->data[p] = NULL; | |
7640a5de LP |
68 | } |
69 | } | |
70 | ||
66a4c743 LP |
71 | static void context_free(Context *c, sd_bus *bus) { |
72 | assert(c); | |
73 | ||
74 | context_reset(c); | |
75 | bus_verify_polkit_async_registry_free(bus, c->polkit_registry); | |
76 | } | |
77 | ||
78 | static int context_read_data(Context *c) { | |
7640a5de | 79 | int r; |
f426cc5d | 80 | struct utsname u; |
7640a5de | 81 | |
66a4c743 LP |
82 | assert(c); |
83 | ||
84 | context_reset(c); | |
7640a5de | 85 | |
f426cc5d DH |
86 | assert_se(uname(&u) >= 0); |
87 | c->data[PROP_KERNEL_NAME] = strdup(u.sysname); | |
88 | c->data[PROP_KERNEL_RELEASE] = strdup(u.release); | |
9be3455f DH |
89 | c->data[PROP_KERNEL_VERSION] = strdup(u.version); |
90 | if (!c->data[PROP_KERNEL_NAME] || !c->data[PROP_KERNEL_RELEASE] || | |
91 | !c->data[PROP_KERNEL_VERSION]) | |
f426cc5d DH |
92 | return -ENOMEM; |
93 | ||
66a4c743 LP |
94 | c->data[PROP_HOSTNAME] = gethostname_malloc(); |
95 | if (!c->data[PROP_HOSTNAME]) | |
7640a5de LP |
96 | return -ENOMEM; |
97 | ||
66a4c743 | 98 | r = read_one_line_file("/etc/hostname", &c->data[PROP_STATIC_HOSTNAME]); |
7640a5de LP |
99 | if (r < 0 && r != -ENOENT) |
100 | return r; | |
101 | ||
102 | r = parse_env_file("/etc/machine-info", NEWLINE, | |
66a4c743 LP |
103 | "PRETTY_HOSTNAME", &c->data[PROP_PRETTY_HOSTNAME], |
104 | "ICON_NAME", &c->data[PROP_ICON_NAME], | |
105 | "CHASSIS", &c->data[PROP_CHASSIS], | |
799298d6 | 106 | "DEPLOYMENT", &c->data[PROP_DEPLOYMENT], |
ce0f1493 | 107 | "LOCATION", &c->data[PROP_LOCATION], |
7640a5de LP |
108 | NULL); |
109 | if (r < 0 && r != -ENOENT) | |
110 | return r; | |
111 | ||
44c32988 DH |
112 | r = parse_env_file("/etc/os-release", NEWLINE, |
113 | "PRETTY_NAME", &c->data[PROP_OS_PRETTY_NAME], | |
114 | "CPE_NAME", &c->data[PROP_OS_CPE_NAME], | |
115 | NULL); | |
5ae4d543 LP |
116 | if (r == -ENOENT) { |
117 | r = parse_env_file("/usr/lib/os-release", NEWLINE, | |
118 | "PRETTY_NAME", &c->data[PROP_OS_PRETTY_NAME], | |
119 | "CPE_NAME", &c->data[PROP_OS_CPE_NAME], | |
120 | NULL); | |
121 | } | |
122 | ||
44c32988 DH |
123 | if (r < 0 && r != -ENOENT) |
124 | return r; | |
125 | ||
7640a5de LP |
126 | return 0; |
127 | } | |
128 | ||
7871c8e9 | 129 | static bool valid_chassis(const char *chassis) { |
7871c8e9 LP |
130 | assert(chassis); |
131 | ||
132 | return nulstr_contains( | |
133 | "vm\0" | |
134 | "container\0" | |
135 | "desktop\0" | |
136 | "laptop\0" | |
137 | "server\0" | |
138 | "tablet\0" | |
c49e59c1 LP |
139 | "handset\0" |
140 | "watch\0", | |
7871c8e9 LP |
141 | chassis); |
142 | } | |
143 | ||
799298d6 JG |
144 | static bool valid_deployment(const char *deployment) { |
145 | assert(deployment); | |
146 | ||
c2142cf1 | 147 | return in_charset(deployment, VALID_DEPLOYMENT_CHARS); |
799298d6 JG |
148 | } |
149 | ||
7871c8e9 | 150 | static const char* fallback_chassis(void) { |
7640a5de LP |
151 | int r; |
152 | char *type; | |
153 | unsigned t; | |
248fab74 | 154 | int v; |
7871c8e9 LP |
155 | |
156 | v = detect_virtualization(NULL); | |
157 | ||
158 | if (v == VIRTUALIZATION_VM) | |
159 | return "vm"; | |
160 | if (v == VIRTUALIZATION_CONTAINER) | |
161 | return "container"; | |
162 | ||
163 | r = read_one_line_file("/sys/firmware/acpi/pm_profile", &type); | |
164 | if (r < 0) | |
165 | goto try_dmi; | |
166 | ||
167 | r = safe_atou(type, &t); | |
168 | free(type); | |
169 | if (r < 0) | |
170 | goto try_dmi; | |
171 | ||
172 | /* We only list the really obvious cases here as the ACPI data | |
173 | * is not really super reliable. | |
174 | * | |
175 | * See the ACPI 5.0 Spec Section 5.2.9.1 for details: | |
176 | * | |
177 | * http://www.acpi.info/DOWNLOADS/ACPIspec50.pdf | |
178 | */ | |
179 | ||
180 | switch(t) { | |
181 | ||
182 | case 1: | |
183 | case 3: | |
184 | case 6: | |
185 | return "desktop"; | |
186 | ||
187 | case 2: | |
188 | return "laptop"; | |
7640a5de | 189 | |
7871c8e9 LP |
190 | case 4: |
191 | case 5: | |
192 | case 7: | |
193 | return "server"; | |
7640a5de | 194 | |
7871c8e9 LP |
195 | case 8: |
196 | return "tablet"; | |
197 | } | |
198 | ||
199 | try_dmi: | |
7640a5de LP |
200 | r = read_one_line_file("/sys/class/dmi/id/chassis_type", &type); |
201 | if (r < 0) | |
202 | return NULL; | |
203 | ||
204 | r = safe_atou(type, &t); | |
205 | free(type); | |
7640a5de LP |
206 | if (r < 0) |
207 | return NULL; | |
208 | ||
209 | /* We only list the really obvious cases here. The DMI data is | |
210 | unreliable enough, so let's not do any additional guesswork | |
41550d40 LP |
211 | on top of that. |
212 | ||
213 | See the SMBIOS Specification 2.7.1 section 7.4.1 for | |
214 | details about the values listed here: | |
215 | ||
216 | http://www.dmtf.org/sites/default/files/standards/documents/DSP0134_2.7.1.pdf | |
217 | */ | |
7640a5de LP |
218 | |
219 | switch (t) { | |
220 | ||
221 | case 0x3: | |
222 | case 0x4: | |
223 | case 0x6: | |
224 | case 0x7: | |
7871c8e9 | 225 | return "desktop"; |
7640a5de | 226 | |
7871c8e9 | 227 | case 0x8: |
7640a5de LP |
228 | case 0x9: |
229 | case 0xA: | |
230 | case 0xE: | |
7871c8e9 LP |
231 | return "laptop"; |
232 | ||
233 | case 0xB: | |
234 | return "handset"; | |
7640a5de LP |
235 | |
236 | case 0x11: | |
41550d40 | 237 | case 0x1C: |
7871c8e9 | 238 | return "server"; |
7640a5de LP |
239 | } |
240 | ||
7640a5de LP |
241 | return NULL; |
242 | } | |
243 | ||
66a4c743 | 244 | static char* context_fallback_icon_name(Context *c) { |
7871c8e9 LP |
245 | const char *chassis; |
246 | ||
66a4c743 LP |
247 | assert(c); |
248 | ||
249 | if (!isempty(c->data[PROP_CHASSIS])) | |
250 | return strappend("computer-", c->data[PROP_CHASSIS]); | |
7871c8e9 LP |
251 | |
252 | chassis = fallback_chassis(); | |
253 | if (chassis) | |
254 | return strappend("computer-", chassis); | |
255 | ||
256 | return strdup("computer"); | |
257 | } | |
258 | ||
799298d6 | 259 | |
c779a442 | 260 | static bool hostname_is_useful(const char *hn) { |
fecc80c1 | 261 | return !isempty(hn) && !is_localhost(hn); |
c779a442 SW |
262 | } |
263 | ||
264 | static int context_update_kernel_hostname(Context *c) { | |
265 | const char *static_hn; | |
7640a5de LP |
266 | const char *hn; |
267 | ||
66a4c743 LP |
268 | assert(c); |
269 | ||
c779a442 SW |
270 | static_hn = c->data[PROP_STATIC_HOSTNAME]; |
271 | ||
272 | /* /etc/hostname with something other than "localhost" | |
273 | * has the highest preference ... */ | |
274 | if (hostname_is_useful(static_hn)) | |
275 | hn = static_hn; | |
276 | ||
277 | /* ... the transient host name, (ie: DHCP) comes next ...*/ | |
278 | else if (!isempty(c->data[PROP_HOSTNAME])) | |
66a4c743 | 279 | hn = c->data[PROP_HOSTNAME]; |
7640a5de | 280 | |
c779a442 SW |
281 | /* ... fallback to static "localhost.*" ignored above ... */ |
282 | else if (!isempty(static_hn)) | |
283 | hn = static_hn; | |
284 | ||
285 | /* ... and the ultimate fallback */ | |
286 | else | |
287 | hn = "localhost"; | |
288 | ||
7640a5de LP |
289 | if (sethostname(hn, strlen(hn)) < 0) |
290 | return -errno; | |
291 | ||
292 | return 0; | |
293 | } | |
294 | ||
66a4c743 | 295 | static int context_write_data_static_hostname(Context *c) { |
7640a5de | 296 | |
66a4c743 LP |
297 | assert(c); |
298 | ||
299 | if (isempty(c->data[PROP_STATIC_HOSTNAME])) { | |
7640a5de LP |
300 | |
301 | if (unlink("/etc/hostname") < 0) | |
302 | return errno == ENOENT ? 0 : -errno; | |
303 | ||
304 | return 0; | |
305 | } | |
66a4c743 | 306 | return write_string_file_atomic_label("/etc/hostname", c->data[PROP_STATIC_HOSTNAME]); |
7640a5de LP |
307 | } |
308 | ||
f200e8bb | 309 | static int context_write_data_machine_info(Context *c) { |
4f34ed54 | 310 | |
7640a5de LP |
311 | static const char * const name[_PROP_MAX] = { |
312 | [PROP_PRETTY_HOSTNAME] = "PRETTY_HOSTNAME", | |
7871c8e9 | 313 | [PROP_ICON_NAME] = "ICON_NAME", |
799298d6 JG |
314 | [PROP_CHASSIS] = "CHASSIS", |
315 | [PROP_DEPLOYMENT] = "DEPLOYMENT", | |
ce0f1493 | 316 | [PROP_LOCATION] = "LOCATION", |
7640a5de LP |
317 | }; |
318 | ||
0ccad099 | 319 | _cleanup_strv_free_ char **l = NULL; |
7640a5de LP |
320 | int r, p; |
321 | ||
66a4c743 LP |
322 | assert(c); |
323 | ||
717603e3 | 324 | r = load_env_file(NULL, "/etc/machine-info", NULL, &l); |
7640a5de LP |
325 | if (r < 0 && r != -ENOENT) |
326 | return r; | |
327 | ||
ce0f1493 | 328 | for (p = PROP_PRETTY_HOSTNAME; p <= PROP_LOCATION; p++) { |
d77ab3f7 LP |
329 | _cleanup_free_ char *t = NULL; |
330 | char **u; | |
7640a5de LP |
331 | |
332 | assert(name[p]); | |
333 | ||
66a4c743 | 334 | if (isempty(c->data[p])) { |
f8440af5 | 335 | strv_env_unset(l, name[p]); |
7640a5de LP |
336 | continue; |
337 | } | |
338 | ||
d77ab3f7 LP |
339 | t = strjoin(name[p], "=", c->data[p], NULL); |
340 | if (!t) | |
7640a5de | 341 | return -ENOMEM; |
7640a5de LP |
342 | |
343 | u = strv_env_set(l, t); | |
7640a5de LP |
344 | if (!u) |
345 | return -ENOMEM; | |
0ccad099 LP |
346 | |
347 | strv_free(l); | |
7640a5de LP |
348 | l = u; |
349 | } | |
350 | ||
351 | if (strv_isempty(l)) { | |
7640a5de LP |
352 | if (unlink("/etc/machine-info") < 0) |
353 | return errno == ENOENT ? 0 : -errno; | |
354 | ||
355 | return 0; | |
356 | } | |
357 | ||
0ccad099 | 358 | return write_env_file_label("/etc/machine-info", l); |
7640a5de LP |
359 | } |
360 | ||
66a4c743 LP |
361 | static int property_get_icon_name( |
362 | sd_bus *bus, | |
363 | const char *path, | |
364 | const char *interface, | |
365 | const char *property, | |
366 | sd_bus_message *reply, | |
ebcf1f97 LP |
367 | void *userdata, |
368 | sd_bus_error *error) { | |
7640a5de | 369 | |
66a4c743 LP |
370 | _cleanup_free_ char *n = NULL; |
371 | Context *c = userdata; | |
372 | const char *name; | |
7640a5de | 373 | |
66a4c743 LP |
374 | if (isempty(c->data[PROP_ICON_NAME])) |
375 | name = n = context_fallback_icon_name(c); | |
7640a5de | 376 | else |
66a4c743 LP |
377 | name = c->data[PROP_ICON_NAME]; |
378 | ||
379 | if (!name) | |
380 | return -ENOMEM; | |
7640a5de | 381 | |
ebcf1f97 | 382 | return sd_bus_message_append(reply, "s", name); |
7640a5de LP |
383 | } |
384 | ||
66a4c743 LP |
385 | static int property_get_chassis( |
386 | sd_bus *bus, | |
387 | const char *path, | |
388 | const char *interface, | |
389 | const char *property, | |
390 | sd_bus_message *reply, | |
ebcf1f97 LP |
391 | void *userdata, |
392 | sd_bus_error *error) { | |
7871c8e9 | 393 | |
66a4c743 LP |
394 | Context *c = userdata; |
395 | const char *name; | |
7871c8e9 | 396 | |
66a4c743 | 397 | if (isempty(c->data[PROP_CHASSIS])) |
7871c8e9 LP |
398 | name = fallback_chassis(); |
399 | else | |
66a4c743 | 400 | name = c->data[PROP_CHASSIS]; |
7871c8e9 | 401 | |
ebcf1f97 | 402 | return sd_bus_message_append(reply, "s", name); |
7871c8e9 LP |
403 | } |
404 | ||
ebcf1f97 | 405 | static int method_set_hostname(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) { |
66a4c743 LP |
406 | Context *c = userdata; |
407 | const char *name; | |
102d8f81 | 408 | int interactive; |
66a4c743 LP |
409 | char *h; |
410 | int r; | |
d200735e | 411 | |
66a4c743 LP |
412 | r = sd_bus_message_read(m, "sb", &name, &interactive); |
413 | if (r < 0) | |
ebcf1f97 | 414 | return r; |
d200735e | 415 | |
66a4c743 LP |
416 | if (isempty(name)) |
417 | name = c->data[PROP_STATIC_HOSTNAME]; | |
7640a5de | 418 | |
66a4c743 LP |
419 | if (isempty(name)) |
420 | name = "localhost"; | |
7640a5de | 421 | |
66a4c743 | 422 | if (!hostname_is_valid(name)) |
ebcf1f97 | 423 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid hostname '%s'", name); |
7640a5de | 424 | |
66a4c743 | 425 | if (streq_ptr(name, c->data[PROP_HOSTNAME])) |
df2d202e | 426 | return sd_bus_reply_method_return(m, NULL); |
7640a5de | 427 | |
ebcf1f97 | 428 | r = bus_verify_polkit_async(bus, &c->polkit_registry, m, "org.freedesktop.hostname1.set-hostname", interactive, error, method_set_hostname, c); |
66a4c743 | 429 | if (r < 0) |
ebcf1f97 | 430 | return r; |
66a4c743 LP |
431 | if (r == 0) |
432 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
7640a5de | 433 | |
66a4c743 LP |
434 | h = strdup(name); |
435 | if (!h) | |
ebcf1f97 | 436 | return -ENOMEM; |
7640a5de | 437 | |
66a4c743 LP |
438 | free(c->data[PROP_HOSTNAME]); |
439 | c->data[PROP_HOSTNAME] = h; | |
7640a5de | 440 | |
c779a442 | 441 | r = context_update_kernel_hostname(c); |
66a4c743 LP |
442 | if (r < 0) { |
443 | log_error("Failed to set host name: %s", strerror(-r)); | |
ebcf1f97 | 444 | return sd_bus_error_set_errnof(error, r, "Failed to set hostname: %s", strerror(-r)); |
66a4c743 | 445 | } |
7640a5de | 446 | |
66a4c743 | 447 | log_info("Changed host name to '%s'", strna(c->data[PROP_HOSTNAME])); |
7640a5de | 448 | |
66a4c743 | 449 | sd_bus_emit_properties_changed(bus, "/org/freedesktop/hostname1", "org.freedesktop.hostname1", "Hostname", NULL); |
7640a5de | 450 | |
df2d202e | 451 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 452 | } |
7640a5de | 453 | |
ebcf1f97 | 454 | static int method_set_static_hostname(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) { |
66a4c743 LP |
455 | Context *c = userdata; |
456 | const char *name; | |
102d8f81 | 457 | int interactive; |
66a4c743 | 458 | int r; |
7640a5de | 459 | |
66a4c743 LP |
460 | r = sd_bus_message_read(m, "sb", &name, &interactive); |
461 | if (r < 0) | |
ebcf1f97 | 462 | return r; |
7640a5de | 463 | |
66a4c743 LP |
464 | if (isempty(name)) |
465 | name = NULL; | |
7640a5de | 466 | |
66a4c743 | 467 | if (streq_ptr(name, c->data[PROP_STATIC_HOSTNAME])) |
df2d202e | 468 | return sd_bus_reply_method_return(m, NULL); |
7640a5de | 469 | |
ebcf1f97 | 470 | r = bus_verify_polkit_async(bus, &c->polkit_registry, m, "org.freedesktop.hostname1.set-static-hostname", interactive, error, method_set_static_hostname, c); |
66a4c743 | 471 | if (r < 0) |
ebcf1f97 | 472 | return r; |
66a4c743 LP |
473 | if (r == 0) |
474 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
7640a5de | 475 | |
66a4c743 LP |
476 | if (isempty(name)) { |
477 | free(c->data[PROP_STATIC_HOSTNAME]); | |
478 | c->data[PROP_STATIC_HOSTNAME] = NULL; | |
479 | } else { | |
480 | char *h; | |
7640a5de | 481 | |
66a4c743 | 482 | if (!hostname_is_valid(name)) |
ebcf1f97 | 483 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid static hostname '%s'", name); |
7640a5de | 484 | |
66a4c743 LP |
485 | h = strdup(name); |
486 | if (!h) | |
ebcf1f97 | 487 | return -ENOMEM; |
7640a5de | 488 | |
66a4c743 LP |
489 | free(c->data[PROP_STATIC_HOSTNAME]); |
490 | c->data[PROP_STATIC_HOSTNAME] = h; | |
491 | } | |
7640a5de | 492 | |
c779a442 SW |
493 | r = context_update_kernel_hostname(c); |
494 | if (r < 0) { | |
495 | log_error("Failed to set host name: %s", strerror(-r)); | |
496 | return sd_bus_error_set_errnof(error, r, "Failed to set hostname: %s", strerror(-r)); | |
497 | } | |
498 | ||
66a4c743 LP |
499 | r = context_write_data_static_hostname(c); |
500 | if (r < 0) { | |
501 | log_error("Failed to write static host name: %s", strerror(-r)); | |
ebcf1f97 | 502 | return sd_bus_error_set_errnof(error, r, "Failed to set static hostname: %s", strerror(-r)); |
66a4c743 | 503 | } |
7640a5de | 504 | |
66a4c743 | 505 | log_info("Changed static host name to '%s'", strna(c->data[PROP_STATIC_HOSTNAME])); |
7640a5de | 506 | |
66a4c743 | 507 | sd_bus_emit_properties_changed(bus, "/org/freedesktop/hostname1", "org.freedesktop.hostname1", "StaticHostname", NULL); |
7640a5de | 508 | |
df2d202e | 509 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 510 | } |
7640a5de | 511 | |
ebcf1f97 | 512 | static int set_machine_info(Context *c, sd_bus *bus, sd_bus_message *m, int prop, sd_bus_message_handler_t cb, sd_bus_error *error) { |
102d8f81 | 513 | int interactive; |
66a4c743 LP |
514 | const char *name; |
515 | int r; | |
516 | ||
517 | assert(c); | |
518 | assert(bus); | |
519 | assert(m); | |
520 | ||
521 | r = sd_bus_message_read(m, "sb", &name, &interactive); | |
522 | if (r < 0) | |
ebcf1f97 | 523 | return r; |
66a4c743 LP |
524 | |
525 | if (isempty(name)) | |
526 | name = NULL; | |
527 | ||
528 | if (streq_ptr(name, c->data[prop])) | |
df2d202e | 529 | return sd_bus_reply_method_return(m, NULL); |
7640a5de | 530 | |
66a4c743 LP |
531 | /* Since the pretty hostname should always be changed at the |
532 | * same time as the static one, use the same policy action for | |
533 | * both... */ | |
534 | ||
535 | r = bus_verify_polkit_async(bus, &c->polkit_registry, m, prop == PROP_PRETTY_HOSTNAME ? | |
536 | "org.freedesktop.hostname1.set-static-hostname" : | |
ebcf1f97 | 537 | "org.freedesktop.hostname1.set-machine-info", interactive, error, cb, c); |
66a4c743 | 538 | if (r < 0) |
ebcf1f97 | 539 | return r; |
66a4c743 LP |
540 | if (r == 0) |
541 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
542 | ||
543 | if (isempty(name)) { | |
544 | free(c->data[prop]); | |
545 | c->data[prop] = NULL; | |
546 | } else { | |
547 | char *h; | |
548 | ||
549 | /* The icon name might ultimately be used as file | |
550 | * name, so better be safe than sorry */ | |
551 | ||
552 | if (prop == PROP_ICON_NAME && !filename_is_safe(name)) | |
ebcf1f97 | 553 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid icon name '%s'", name); |
6294aa76 | 554 | if (prop == PROP_PRETTY_HOSTNAME && string_has_cc(name, NULL)) |
ebcf1f97 | 555 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid pretty host name '%s'", name); |
66a4c743 | 556 | if (prop == PROP_CHASSIS && !valid_chassis(name)) |
ebcf1f97 | 557 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid chassis '%s'", name); |
799298d6 JG |
558 | if (prop == PROP_DEPLOYMENT && !valid_deployment(name)) |
559 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid deployment '%s'", name); | |
ce0f1493 LP |
560 | if (prop == PROP_LOCATION && string_has_cc(name, NULL)) |
561 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid location '%s'", name); | |
66a4c743 LP |
562 | |
563 | h = strdup(name); | |
564 | if (!h) | |
ebcf1f97 | 565 | return -ENOMEM; |
66a4c743 LP |
566 | |
567 | free(c->data[prop]); | |
568 | c->data[prop] = h; | |
7640a5de LP |
569 | } |
570 | ||
f200e8bb | 571 | r = context_write_data_machine_info(c); |
66a4c743 LP |
572 | if (r < 0) { |
573 | log_error("Failed to write machine info: %s", strerror(-r)); | |
ebcf1f97 | 574 | return sd_bus_error_set_errnof(error, r, "Failed to write machine info: %s", strerror(-r)); |
66a4c743 | 575 | } |
7640a5de | 576 | |
66a4c743 LP |
577 | log_info("Changed %s to '%s'", |
578 | prop == PROP_PRETTY_HOSTNAME ? "pretty host name" : | |
799298d6 | 579 | prop == PROP_DEPLOYMENT ? "deployment" : |
ce0f1493 | 580 | prop == PROP_LOCATION ? "location" : |
66a4c743 | 581 | prop == PROP_CHASSIS ? "chassis" : "icon name", strna(c->data[prop])); |
7640a5de | 582 | |
66a4c743 LP |
583 | sd_bus_emit_properties_changed(bus, "/org/freedesktop/hostname1", "org.freedesktop.hostname1", |
584 | prop == PROP_PRETTY_HOSTNAME ? "PrettyHostname" : | |
799298d6 | 585 | prop == PROP_DEPLOYMENT ? "Deployment" : |
ce0f1493 | 586 | prop == PROP_LOCATION ? "Location" : |
799298d6 | 587 | prop == PROP_CHASSIS ? "Chassis" : "IconName" , NULL); |
7640a5de | 588 | |
df2d202e | 589 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 590 | } |
7640a5de | 591 | |
ebcf1f97 LP |
592 | static int method_set_pretty_hostname(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) { |
593 | return set_machine_info(userdata, bus, m, PROP_PRETTY_HOSTNAME, method_set_pretty_hostname, error); | |
7640a5de LP |
594 | } |
595 | ||
ebcf1f97 LP |
596 | static int method_set_icon_name(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) { |
597 | return set_machine_info(userdata, bus, m, PROP_ICON_NAME, method_set_icon_name, error); | |
66a4c743 LP |
598 | } |
599 | ||
ebcf1f97 LP |
600 | static int method_set_chassis(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) { |
601 | return set_machine_info(userdata, bus, m, PROP_CHASSIS, method_set_chassis, error); | |
66a4c743 LP |
602 | } |
603 | ||
799298d6 JG |
604 | static int method_set_deployment(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) { |
605 | return set_machine_info(userdata, bus, m, PROP_DEPLOYMENT, method_set_deployment, error); | |
606 | } | |
607 | ||
ce0f1493 LP |
608 | static int method_set_location(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) { |
609 | return set_machine_info(userdata, bus, m, PROP_LOCATION, method_set_location, error); | |
610 | } | |
611 | ||
66a4c743 LP |
612 | static const sd_bus_vtable hostname_vtable[] = { |
613 | SD_BUS_VTABLE_START(0), | |
614 | SD_BUS_PROPERTY("Hostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_HOSTNAME, 0), | |
615 | SD_BUS_PROPERTY("StaticHostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_STATIC_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
616 | SD_BUS_PROPERTY("PrettyHostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_PRETTY_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
617 | SD_BUS_PROPERTY("IconName", "s", property_get_icon_name, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
618 | SD_BUS_PROPERTY("Chassis", "s", property_get_chassis, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
ce0f1493 LP |
619 | SD_BUS_PROPERTY("Deployment", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_DEPLOYMENT, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
620 | SD_BUS_PROPERTY("Location", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_LOCATION, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
f426cc5d DH |
621 | SD_BUS_PROPERTY("KernelName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_NAME, SD_BUS_VTABLE_PROPERTY_CONST), |
622 | SD_BUS_PROPERTY("KernelRelease", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_RELEASE, SD_BUS_VTABLE_PROPERTY_CONST), | |
9be3455f | 623 | SD_BUS_PROPERTY("KernelVersion", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_VERSION, SD_BUS_VTABLE_PROPERTY_CONST), |
44c32988 DH |
624 | SD_BUS_PROPERTY("OperatingSystemPrettyName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_OS_PRETTY_NAME, SD_BUS_VTABLE_PROPERTY_CONST), |
625 | SD_BUS_PROPERTY("OperatingSystemCPEName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_OS_CPE_NAME, SD_BUS_VTABLE_PROPERTY_CONST), | |
adacb957 LP |
626 | SD_BUS_METHOD("SetHostname", "sb", NULL, method_set_hostname, SD_BUS_VTABLE_UNPRIVILEGED), |
627 | SD_BUS_METHOD("SetStaticHostname", "sb", NULL, method_set_static_hostname, SD_BUS_VTABLE_UNPRIVILEGED), | |
628 | SD_BUS_METHOD("SetPrettyHostname", "sb", NULL, method_set_pretty_hostname, SD_BUS_VTABLE_UNPRIVILEGED), | |
629 | SD_BUS_METHOD("SetIconName", "sb", NULL, method_set_icon_name, SD_BUS_VTABLE_UNPRIVILEGED), | |
630 | SD_BUS_METHOD("SetChassis", "sb", NULL, method_set_chassis, SD_BUS_VTABLE_UNPRIVILEGED), | |
799298d6 | 631 | SD_BUS_METHOD("SetDeployment", "sb", NULL, method_set_deployment, SD_BUS_VTABLE_UNPRIVILEGED), |
ce0f1493 | 632 | SD_BUS_METHOD("SetLocation", "sb", NULL, method_set_location, SD_BUS_VTABLE_UNPRIVILEGED), |
66a4c743 LP |
633 | SD_BUS_VTABLE_END, |
634 | }; | |
635 | ||
636 | static int connect_bus(Context *c, sd_event *event, sd_bus **_bus) { | |
24996861 | 637 | _cleanup_bus_close_unref_ sd_bus *bus = NULL; |
7640a5de LP |
638 | int r; |
639 | ||
66a4c743 LP |
640 | assert(c); |
641 | assert(event); | |
d0baa06f LP |
642 | assert(_bus); |
643 | ||
76b54375 | 644 | r = sd_bus_default_system(&bus); |
66a4c743 LP |
645 | if (r < 0) { |
646 | log_error("Failed to get system bus connection: %s", strerror(-r)); | |
647 | return r; | |
d0baa06f LP |
648 | } |
649 | ||
19befb2d | 650 | r = sd_bus_add_object_vtable(bus, NULL, "/org/freedesktop/hostname1", "org.freedesktop.hostname1", hostname_vtable, c); |
66a4c743 LP |
651 | if (r < 0) { |
652 | log_error("Failed to register object: %s", strerror(-r)); | |
653 | return r; | |
d0baa06f LP |
654 | } |
655 | ||
5bb658a1 | 656 | r = sd_bus_request_name(bus, "org.freedesktop.hostname1", 0); |
66a4c743 LP |
657 | if (r < 0) { |
658 | log_error("Failed to register name: %s", strerror(-r)); | |
659 | return r; | |
add10b5a LP |
660 | } |
661 | ||
66a4c743 LP |
662 | r = sd_bus_attach_event(bus, event, 0); |
663 | if (r < 0) { | |
664 | log_error("Failed to attach bus to event loop: %s", strerror(-r)); | |
665 | return r; | |
666 | } | |
d0baa06f | 667 | |
66a4c743 LP |
668 | *_bus = bus; |
669 | bus = NULL; | |
d0baa06f | 670 | |
66a4c743 | 671 | return 0; |
d0baa06f LP |
672 | } |
673 | ||
674 | int main(int argc, char *argv[]) { | |
66a4c743 | 675 | Context context = {}; |
66a4c743 | 676 | _cleanup_event_unref_ sd_event *event = NULL; |
24996861 | 677 | _cleanup_bus_close_unref_ sd_bus *bus = NULL; |
d0baa06f | 678 | int r; |
d0baa06f | 679 | |
7640a5de LP |
680 | log_set_target(LOG_TARGET_AUTO); |
681 | log_parse_environment(); | |
682 | log_open(); | |
683 | ||
4c12626c | 684 | umask(0022); |
a5c32cff | 685 | label_init("/etc"); |
4c12626c | 686 | |
7640a5de LP |
687 | if (argc != 1) { |
688 | log_error("This program takes no arguments."); | |
689 | r = -EINVAL; | |
690 | goto finish; | |
691 | } | |
692 | ||
66a4c743 LP |
693 | if (argc != 1) { |
694 | log_error("This program takes no arguments."); | |
695 | r = -EINVAL; | |
696 | goto finish; | |
697 | } | |
698 | ||
afc6adb5 | 699 | r = sd_event_default(&event); |
7640a5de | 700 | if (r < 0) { |
66a4c743 | 701 | log_error("Failed to allocate event loop: %s", strerror(-r)); |
7640a5de LP |
702 | goto finish; |
703 | } | |
704 | ||
cde93897 LP |
705 | sd_event_set_watchdog(event, true); |
706 | ||
66a4c743 | 707 | r = connect_bus(&context, event, &bus); |
d0baa06f | 708 | if (r < 0) |
7640a5de | 709 | goto finish; |
7640a5de | 710 | |
66a4c743 LP |
711 | r = context_read_data(&context); |
712 | if (r < 0) { | |
3a3c71c1 | 713 | log_error("Failed to read hostname and machine information: %s", strerror(-r)); |
66a4c743 LP |
714 | goto finish; |
715 | } | |
ad740100 | 716 | |
37224a5f | 717 | r = bus_event_loop_with_idle(event, bus, "org.freedesktop.hostname1", DEFAULT_EXIT_USEC, NULL, NULL); |
66a4c743 LP |
718 | if (r < 0) { |
719 | log_error("Failed to run event loop: %s", strerror(-r)); | |
720 | goto finish; | |
ad740100 | 721 | } |
7640a5de | 722 | |
7640a5de | 723 | finish: |
66a4c743 | 724 | context_free(&context, bus); |
7640a5de | 725 | |
7640a5de LP |
726 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
727 | } |