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Commit | Line | Data |
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663996b3 MS |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2011 Lennart Poettering | |
5 | ||
6 | systemd is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU Lesser General Public License as published by | |
8 | the Free Software Foundation; either version 2.1 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | systemd is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public License | |
17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
18 | ***/ | |
19 | ||
663996b3 MS |
20 | #include <errno.h> |
21 | #include <string.h> | |
60f067b4 | 22 | #include <sys/utsname.h> |
db2df898 | 23 | #include <unistd.h> |
663996b3 | 24 | |
db2df898 MP |
25 | #include "alloc-util.h" |
26 | #include "bus-util.h" | |
663996b3 | 27 | #include "def.h" |
663996b3 | 28 | #include "env-util.h" |
db2df898 | 29 | #include "fileio-label.h" |
e3bff60a | 30 | #include "hostname-util.h" |
db2df898 MP |
31 | #include "parse-util.h" |
32 | #include "path-util.h" | |
33 | #include "selinux-util.h" | |
34 | #include "strv.h" | |
35 | #include "user-util.h" | |
36 | #include "util.h" | |
37 | #include "virt.h" | |
663996b3 | 38 | |
5eef597e MP |
39 | #define VALID_DEPLOYMENT_CHARS (DIGITS LETTERS "-.:") |
40 | ||
663996b3 MS |
41 | enum { |
42 | PROP_HOSTNAME, | |
43 | PROP_STATIC_HOSTNAME, | |
44 | PROP_PRETTY_HOSTNAME, | |
45 | PROP_ICON_NAME, | |
46 | PROP_CHASSIS, | |
5eef597e MP |
47 | PROP_DEPLOYMENT, |
48 | PROP_LOCATION, | |
60f067b4 JS |
49 | PROP_KERNEL_NAME, |
50 | PROP_KERNEL_RELEASE, | |
51 | PROP_KERNEL_VERSION, | |
52 | PROP_OS_PRETTY_NAME, | |
53 | PROP_OS_CPE_NAME, | |
663996b3 MS |
54 | _PROP_MAX |
55 | }; | |
56 | ||
60f067b4 JS |
57 | typedef struct Context { |
58 | char *data[_PROP_MAX]; | |
59 | Hashmap *polkit_registry; | |
60 | } Context; | |
663996b3 | 61 | |
60f067b4 | 62 | static void context_reset(Context *c) { |
663996b3 MS |
63 | int p; |
64 | ||
60f067b4 JS |
65 | assert(c); |
66 | ||
6300502b MP |
67 | for (p = 0; p < _PROP_MAX; p++) |
68 | c->data[p] = mfree(c->data[p]); | |
663996b3 MS |
69 | } |
70 | ||
5eef597e | 71 | static void context_free(Context *c) { |
60f067b4 JS |
72 | assert(c); |
73 | ||
74 | context_reset(c); | |
5eef597e | 75 | bus_verify_polkit_async_registry_free(c->polkit_registry); |
60f067b4 JS |
76 | } |
77 | ||
78 | static int context_read_data(Context *c) { | |
663996b3 | 79 | int r; |
60f067b4 | 80 | struct utsname u; |
663996b3 | 81 | |
60f067b4 | 82 | assert(c); |
663996b3 | 83 | |
60f067b4 JS |
84 | context_reset(c); |
85 | ||
86 | assert_se(uname(&u) >= 0); | |
87 | c->data[PROP_KERNEL_NAME] = strdup(u.sysname); | |
88 | c->data[PROP_KERNEL_RELEASE] = strdup(u.release); | |
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]) | |
92 | return -ENOMEM; | |
93 | ||
94 | c->data[PROP_HOSTNAME] = gethostname_malloc(); | |
95 | if (!c->data[PROP_HOSTNAME]) | |
663996b3 MS |
96 | return -ENOMEM; |
97 | ||
e3bff60a | 98 | r = read_hostname_config("/etc/hostname", &c->data[PROP_STATIC_HOSTNAME]); |
663996b3 MS |
99 | if (r < 0 && r != -ENOENT) |
100 | return r; | |
101 | ||
102 | r = parse_env_file("/etc/machine-info", NEWLINE, | |
60f067b4 JS |
103 | "PRETTY_HOSTNAME", &c->data[PROP_PRETTY_HOSTNAME], |
104 | "ICON_NAME", &c->data[PROP_ICON_NAME], | |
105 | "CHASSIS", &c->data[PROP_CHASSIS], | |
5eef597e MP |
106 | "DEPLOYMENT", &c->data[PROP_DEPLOYMENT], |
107 | "LOCATION", &c->data[PROP_LOCATION], | |
60f067b4 JS |
108 | NULL); |
109 | if (r < 0 && r != -ENOENT) | |
110 | return r; | |
111 | ||
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], | |
663996b3 | 115 | NULL); |
6300502b | 116 | if (r == -ENOENT) |
e842803a MB |
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); | |
e842803a | 121 | |
663996b3 MS |
122 | if (r < 0 && r != -ENOENT) |
123 | return r; | |
124 | ||
125 | return 0; | |
126 | } | |
127 | ||
663996b3 | 128 | static bool valid_chassis(const char *chassis) { |
663996b3 MS |
129 | assert(chassis); |
130 | ||
131 | return nulstr_contains( | |
132 | "vm\0" | |
133 | "container\0" | |
134 | "desktop\0" | |
135 | "laptop\0" | |
136 | "server\0" | |
137 | "tablet\0" | |
5eef597e | 138 | "handset\0" |
f47781d8 MP |
139 | "watch\0" |
140 | "embedded\0", | |
663996b3 MS |
141 | chassis); |
142 | } | |
143 | ||
5eef597e MP |
144 | static bool valid_deployment(const char *deployment) { |
145 | assert(deployment); | |
146 | ||
147 | return in_charset(deployment, VALID_DEPLOYMENT_CHARS); | |
148 | } | |
149 | ||
663996b3 MS |
150 | static const char* fallback_chassis(void) { |
151 | int r; | |
152 | char *type; | |
153 | unsigned t; | |
60f067b4 | 154 | int v; |
663996b3 | 155 | |
6300502b | 156 | v = detect_virtualization(); |
663996b3 | 157 | |
6300502b | 158 | if (VIRTUALIZATION_IS_VM(v)) |
663996b3 | 159 | return "vm"; |
6300502b | 160 | if (VIRTUALIZATION_IS_CONTAINER(v)) |
663996b3 MS |
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"; | |
189 | ||
190 | case 4: | |
191 | case 5: | |
192 | case 7: | |
193 | return "server"; | |
194 | ||
195 | case 8: | |
196 | return "tablet"; | |
197 | } | |
198 | ||
199 | try_dmi: | |
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); | |
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 | |
211 | on top of that. | |
212 | ||
4c89c718 | 213 | See the SMBIOS Specification 3.0 section 7.4.1 for |
663996b3 MS |
214 | details about the values listed here: |
215 | ||
4c89c718 | 216 | https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.0.0.pdf |
663996b3 MS |
217 | */ |
218 | ||
219 | switch (t) { | |
220 | ||
221 | case 0x3: | |
222 | case 0x4: | |
223 | case 0x6: | |
224 | case 0x7: | |
225 | return "desktop"; | |
226 | ||
227 | case 0x8: | |
228 | case 0x9: | |
229 | case 0xA: | |
230 | case 0xE: | |
231 | return "laptop"; | |
232 | ||
233 | case 0xB: | |
234 | return "handset"; | |
235 | ||
236 | case 0x11: | |
237 | case 0x1C: | |
4c89c718 | 238 | case 0x1D: |
663996b3 | 239 | return "server"; |
4c89c718 MP |
240 | |
241 | case 0x1E: | |
242 | return "tablet"; | |
663996b3 MS |
243 | } |
244 | ||
245 | return NULL; | |
246 | } | |
247 | ||
60f067b4 | 248 | static char* context_fallback_icon_name(Context *c) { |
663996b3 MS |
249 | const char *chassis; |
250 | ||
60f067b4 JS |
251 | assert(c); |
252 | ||
253 | if (!isempty(c->data[PROP_CHASSIS])) | |
254 | return strappend("computer-", c->data[PROP_CHASSIS]); | |
663996b3 MS |
255 | |
256 | chassis = fallback_chassis(); | |
257 | if (chassis) | |
258 | return strappend("computer-", chassis); | |
259 | ||
260 | return strdup("computer"); | |
261 | } | |
262 | ||
5eef597e | 263 | |
60f067b4 | 264 | static bool hostname_is_useful(const char *hn) { |
e842803a | 265 | return !isempty(hn) && !is_localhost(hn); |
60f067b4 JS |
266 | } |
267 | ||
268 | static int context_update_kernel_hostname(Context *c) { | |
269 | const char *static_hn; | |
663996b3 MS |
270 | const char *hn; |
271 | ||
60f067b4 JS |
272 | assert(c); |
273 | ||
274 | static_hn = c->data[PROP_STATIC_HOSTNAME]; | |
275 | ||
276 | /* /etc/hostname with something other than "localhost" | |
277 | * has the highest preference ... */ | |
278 | if (hostname_is_useful(static_hn)) | |
279 | hn = static_hn; | |
280 | ||
e735f4d4 | 281 | /* ... the transient host name, (ie: DHCP) comes next ... */ |
60f067b4 JS |
282 | else if (!isempty(c->data[PROP_HOSTNAME])) |
283 | hn = c->data[PROP_HOSTNAME]; | |
284 | ||
285 | /* ... fallback to static "localhost.*" ignored above ... */ | |
286 | else if (!isempty(static_hn)) | |
287 | hn = static_hn; | |
288 | ||
289 | /* ... and the ultimate fallback */ | |
663996b3 | 290 | else |
60f067b4 | 291 | hn = "localhost"; |
663996b3 | 292 | |
5eef597e | 293 | if (sethostname_idempotent(hn) < 0) |
663996b3 MS |
294 | return -errno; |
295 | ||
296 | return 0; | |
297 | } | |
298 | ||
60f067b4 JS |
299 | static int context_write_data_static_hostname(Context *c) { |
300 | ||
301 | assert(c); | |
663996b3 | 302 | |
60f067b4 | 303 | if (isempty(c->data[PROP_STATIC_HOSTNAME])) { |
663996b3 MS |
304 | |
305 | if (unlink("/etc/hostname") < 0) | |
306 | return errno == ENOENT ? 0 : -errno; | |
307 | ||
308 | return 0; | |
309 | } | |
60f067b4 | 310 | return write_string_file_atomic_label("/etc/hostname", c->data[PROP_STATIC_HOSTNAME]); |
663996b3 MS |
311 | } |
312 | ||
60f067b4 | 313 | static int context_write_data_machine_info(Context *c) { |
663996b3 MS |
314 | |
315 | static const char * const name[_PROP_MAX] = { | |
316 | [PROP_PRETTY_HOSTNAME] = "PRETTY_HOSTNAME", | |
317 | [PROP_ICON_NAME] = "ICON_NAME", | |
5eef597e MP |
318 | [PROP_CHASSIS] = "CHASSIS", |
319 | [PROP_DEPLOYMENT] = "DEPLOYMENT", | |
320 | [PROP_LOCATION] = "LOCATION", | |
663996b3 MS |
321 | }; |
322 | ||
60f067b4 | 323 | _cleanup_strv_free_ char **l = NULL; |
663996b3 MS |
324 | int r, p; |
325 | ||
60f067b4 JS |
326 | assert(c); |
327 | ||
e842803a | 328 | r = load_env_file(NULL, "/etc/machine-info", NULL, &l); |
663996b3 MS |
329 | if (r < 0 && r != -ENOENT) |
330 | return r; | |
331 | ||
5eef597e MP |
332 | for (p = PROP_PRETTY_HOSTNAME; p <= PROP_LOCATION; p++) { |
333 | _cleanup_free_ char *t = NULL; | |
334 | char **u; | |
663996b3 MS |
335 | |
336 | assert(name[p]); | |
337 | ||
60f067b4 | 338 | if (isempty(c->data[p])) { |
663996b3 MS |
339 | strv_env_unset(l, name[p]); |
340 | continue; | |
341 | } | |
342 | ||
5eef597e MP |
343 | t = strjoin(name[p], "=", c->data[p], NULL); |
344 | if (!t) | |
663996b3 | 345 | return -ENOMEM; |
663996b3 MS |
346 | |
347 | u = strv_env_set(l, t); | |
663996b3 MS |
348 | if (!u) |
349 | return -ENOMEM; | |
60f067b4 JS |
350 | |
351 | strv_free(l); | |
663996b3 MS |
352 | l = u; |
353 | } | |
354 | ||
355 | if (strv_isempty(l)) { | |
663996b3 MS |
356 | if (unlink("/etc/machine-info") < 0) |
357 | return errno == ENOENT ? 0 : -errno; | |
358 | ||
359 | return 0; | |
360 | } | |
361 | ||
60f067b4 | 362 | return write_env_file_label("/etc/machine-info", l); |
663996b3 MS |
363 | } |
364 | ||
60f067b4 JS |
365 | static int property_get_icon_name( |
366 | sd_bus *bus, | |
367 | const char *path, | |
368 | const char *interface, | |
369 | const char *property, | |
370 | sd_bus_message *reply, | |
371 | void *userdata, | |
372 | sd_bus_error *error) { | |
663996b3 | 373 | |
60f067b4 JS |
374 | _cleanup_free_ char *n = NULL; |
375 | Context *c = userdata; | |
376 | const char *name; | |
663996b3 | 377 | |
60f067b4 JS |
378 | if (isempty(c->data[PROP_ICON_NAME])) |
379 | name = n = context_fallback_icon_name(c); | |
663996b3 | 380 | else |
60f067b4 | 381 | name = c->data[PROP_ICON_NAME]; |
663996b3 | 382 | |
60f067b4 JS |
383 | if (!name) |
384 | return -ENOMEM; | |
385 | ||
386 | return sd_bus_message_append(reply, "s", name); | |
663996b3 MS |
387 | } |
388 | ||
60f067b4 JS |
389 | static int property_get_chassis( |
390 | sd_bus *bus, | |
391 | const char *path, | |
392 | const char *interface, | |
393 | const char *property, | |
394 | sd_bus_message *reply, | |
395 | void *userdata, | |
396 | sd_bus_error *error) { | |
663996b3 | 397 | |
60f067b4 JS |
398 | Context *c = userdata; |
399 | const char *name; | |
663996b3 | 400 | |
60f067b4 | 401 | if (isempty(c->data[PROP_CHASSIS])) |
663996b3 MS |
402 | name = fallback_chassis(); |
403 | else | |
60f067b4 | 404 | name = c->data[PROP_CHASSIS]; |
663996b3 | 405 | |
60f067b4 | 406 | return sd_bus_message_append(reply, "s", name); |
663996b3 MS |
407 | } |
408 | ||
e3bff60a | 409 | static int method_set_hostname(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
60f067b4 JS |
410 | Context *c = userdata; |
411 | const char *name; | |
412 | int interactive; | |
413 | char *h; | |
414 | int r; | |
663996b3 | 415 | |
e3bff60a MP |
416 | assert(m); |
417 | assert(c); | |
418 | ||
60f067b4 JS |
419 | r = sd_bus_message_read(m, "sb", &name, &interactive); |
420 | if (r < 0) | |
421 | return r; | |
663996b3 | 422 | |
60f067b4 JS |
423 | if (isempty(name)) |
424 | name = c->data[PROP_STATIC_HOSTNAME]; | |
663996b3 | 425 | |
60f067b4 JS |
426 | if (isempty(name)) |
427 | name = "localhost"; | |
663996b3 | 428 | |
13d276d0 | 429 | if (!hostname_is_valid(name, false)) |
60f067b4 JS |
430 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid hostname '%s'", name); |
431 | ||
432 | if (streq_ptr(name, c->data[PROP_HOSTNAME])) | |
433 | return sd_bus_reply_method_return(m, NULL); | |
663996b3 | 434 | |
e3bff60a MP |
435 | r = bus_verify_polkit_async( |
436 | m, | |
437 | CAP_SYS_ADMIN, | |
438 | "org.freedesktop.hostname1.set-hostname", | |
d9dfd233 | 439 | NULL, |
e3bff60a MP |
440 | interactive, |
441 | UID_INVALID, | |
442 | &c->polkit_registry, | |
443 | error); | |
60f067b4 JS |
444 | if (r < 0) |
445 | return r; | |
446 | if (r == 0) | |
447 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
448 | ||
449 | h = strdup(name); | |
450 | if (!h) | |
451 | return -ENOMEM; | |
452 | ||
453 | free(c->data[PROP_HOSTNAME]); | |
454 | c->data[PROP_HOSTNAME] = h; | |
455 | ||
456 | r = context_update_kernel_hostname(c); | |
457 | if (r < 0) { | |
f47781d8 | 458 | log_error_errno(r, "Failed to set host name: %m"); |
60f067b4 JS |
459 | return sd_bus_error_set_errnof(error, r, "Failed to set hostname: %s", strerror(-r)); |
460 | } | |
663996b3 | 461 | |
60f067b4 | 462 | log_info("Changed host name to '%s'", strna(c->data[PROP_HOSTNAME])); |
663996b3 | 463 | |
e3bff60a | 464 | (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), "/org/freedesktop/hostname1", "org.freedesktop.hostname1", "Hostname", NULL); |
663996b3 | 465 | |
60f067b4 JS |
466 | return sd_bus_reply_method_return(m, NULL); |
467 | } | |
468 | ||
e3bff60a | 469 | static int method_set_static_hostname(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
60f067b4 JS |
470 | Context *c = userdata; |
471 | const char *name; | |
472 | int interactive; | |
473 | int r; | |
663996b3 | 474 | |
e3bff60a MP |
475 | assert(m); |
476 | assert(c); | |
477 | ||
60f067b4 JS |
478 | r = sd_bus_message_read(m, "sb", &name, &interactive); |
479 | if (r < 0) | |
480 | return r; | |
663996b3 | 481 | |
60f067b4 JS |
482 | if (isempty(name)) |
483 | name = NULL; | |
484 | ||
485 | if (streq_ptr(name, c->data[PROP_STATIC_HOSTNAME])) | |
486 | return sd_bus_reply_method_return(m, NULL); | |
487 | ||
e3bff60a MP |
488 | r = bus_verify_polkit_async( |
489 | m, | |
490 | CAP_SYS_ADMIN, | |
491 | "org.freedesktop.hostname1.set-static-hostname", | |
d9dfd233 | 492 | NULL, |
e3bff60a MP |
493 | interactive, |
494 | UID_INVALID, | |
495 | &c->polkit_registry, | |
496 | error); | |
60f067b4 JS |
497 | if (r < 0) |
498 | return r; | |
499 | if (r == 0) | |
500 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
501 | ||
502 | if (isempty(name)) { | |
6300502b | 503 | c->data[PROP_STATIC_HOSTNAME] = mfree(c->data[PROP_STATIC_HOSTNAME]); |
60f067b4 JS |
504 | } else { |
505 | char *h; | |
663996b3 | 506 | |
13d276d0 | 507 | if (!hostname_is_valid(name, false)) |
60f067b4 | 508 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid static hostname '%s'", name); |
663996b3 | 509 | |
60f067b4 JS |
510 | h = strdup(name); |
511 | if (!h) | |
512 | return -ENOMEM; | |
663996b3 | 513 | |
60f067b4 JS |
514 | free(c->data[PROP_STATIC_HOSTNAME]); |
515 | c->data[PROP_STATIC_HOSTNAME] = h; | |
516 | } | |
663996b3 | 517 | |
60f067b4 JS |
518 | r = context_update_kernel_hostname(c); |
519 | if (r < 0) { | |
f47781d8 | 520 | log_error_errno(r, "Failed to set host name: %m"); |
60f067b4 JS |
521 | return sd_bus_error_set_errnof(error, r, "Failed to set hostname: %s", strerror(-r)); |
522 | } | |
663996b3 | 523 | |
60f067b4 JS |
524 | r = context_write_data_static_hostname(c); |
525 | if (r < 0) { | |
f47781d8 | 526 | log_error_errno(r, "Failed to write static host name: %m"); |
60f067b4 JS |
527 | return sd_bus_error_set_errnof(error, r, "Failed to set static hostname: %s", strerror(-r)); |
528 | } | |
663996b3 | 529 | |
60f067b4 | 530 | log_info("Changed static host name to '%s'", strna(c->data[PROP_STATIC_HOSTNAME])); |
663996b3 | 531 | |
e3bff60a | 532 | (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), "/org/freedesktop/hostname1", "org.freedesktop.hostname1", "StaticHostname", NULL); |
663996b3 | 533 | |
60f067b4 JS |
534 | return sd_bus_reply_method_return(m, NULL); |
535 | } | |
663996b3 | 536 | |
e3bff60a | 537 | static int set_machine_info(Context *c, sd_bus_message *m, int prop, sd_bus_message_handler_t cb, sd_bus_error *error) { |
60f067b4 JS |
538 | int interactive; |
539 | const char *name; | |
540 | int r; | |
663996b3 | 541 | |
60f067b4 | 542 | assert(c); |
60f067b4 | 543 | assert(m); |
663996b3 | 544 | |
60f067b4 JS |
545 | r = sd_bus_message_read(m, "sb", &name, &interactive); |
546 | if (r < 0) | |
547 | return r; | |
663996b3 | 548 | |
60f067b4 JS |
549 | if (isempty(name)) |
550 | name = NULL; | |
663996b3 | 551 | |
60f067b4 JS |
552 | if (streq_ptr(name, c->data[prop])) |
553 | return sd_bus_reply_method_return(m, NULL); | |
663996b3 | 554 | |
60f067b4 JS |
555 | /* Since the pretty hostname should always be changed at the |
556 | * same time as the static one, use the same policy action for | |
557 | * both... */ | |
663996b3 | 558 | |
e3bff60a MP |
559 | r = bus_verify_polkit_async( |
560 | m, | |
561 | CAP_SYS_ADMIN, | |
562 | prop == PROP_PRETTY_HOSTNAME ? "org.freedesktop.hostname1.set-static-hostname" : "org.freedesktop.hostname1.set-machine-info", | |
d9dfd233 | 563 | NULL, |
e3bff60a MP |
564 | interactive, |
565 | UID_INVALID, | |
566 | &c->polkit_registry, | |
567 | error); | |
60f067b4 JS |
568 | if (r < 0) |
569 | return r; | |
570 | if (r == 0) | |
571 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
572 | ||
573 | if (isempty(name)) { | |
6300502b | 574 | c->data[prop] = mfree(c->data[prop]); |
60f067b4 JS |
575 | } else { |
576 | char *h; | |
577 | ||
578 | /* The icon name might ultimately be used as file | |
579 | * name, so better be safe than sorry */ | |
580 | ||
e735f4d4 | 581 | if (prop == PROP_ICON_NAME && !filename_is_valid(name)) |
60f067b4 | 582 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid icon name '%s'", name); |
5eef597e | 583 | if (prop == PROP_PRETTY_HOSTNAME && string_has_cc(name, NULL)) |
60f067b4 JS |
584 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid pretty host name '%s'", name); |
585 | if (prop == PROP_CHASSIS && !valid_chassis(name)) | |
586 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid chassis '%s'", name); | |
5eef597e MP |
587 | if (prop == PROP_DEPLOYMENT && !valid_deployment(name)) |
588 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid deployment '%s'", name); | |
589 | if (prop == PROP_LOCATION && string_has_cc(name, NULL)) | |
590 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid location '%s'", name); | |
60f067b4 JS |
591 | |
592 | h = strdup(name); | |
593 | if (!h) | |
594 | return -ENOMEM; | |
663996b3 | 595 | |
60f067b4 JS |
596 | free(c->data[prop]); |
597 | c->data[prop] = h; | |
598 | } | |
663996b3 | 599 | |
60f067b4 JS |
600 | r = context_write_data_machine_info(c); |
601 | if (r < 0) { | |
f47781d8 | 602 | log_error_errno(r, "Failed to write machine info: %m"); |
60f067b4 | 603 | return sd_bus_error_set_errnof(error, r, "Failed to write machine info: %s", strerror(-r)); |
663996b3 MS |
604 | } |
605 | ||
60f067b4 JS |
606 | log_info("Changed %s to '%s'", |
607 | prop == PROP_PRETTY_HOSTNAME ? "pretty host name" : | |
5eef597e MP |
608 | prop == PROP_DEPLOYMENT ? "deployment" : |
609 | prop == PROP_LOCATION ? "location" : | |
60f067b4 | 610 | prop == PROP_CHASSIS ? "chassis" : "icon name", strna(c->data[prop])); |
663996b3 | 611 | |
e3bff60a MP |
612 | (void) sd_bus_emit_properties_changed( |
613 | sd_bus_message_get_bus(m), | |
614 | "/org/freedesktop/hostname1", | |
615 | "org.freedesktop.hostname1", | |
616 | prop == PROP_PRETTY_HOSTNAME ? "PrettyHostname" : | |
617 | prop == PROP_DEPLOYMENT ? "Deployment" : | |
618 | prop == PROP_LOCATION ? "Location" : | |
619 | prop == PROP_CHASSIS ? "Chassis" : "IconName" , NULL); | |
60f067b4 JS |
620 | |
621 | return sd_bus_reply_method_return(m, NULL); | |
622 | } | |
663996b3 | 623 | |
e3bff60a MP |
624 | static int method_set_pretty_hostname(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
625 | return set_machine_info(userdata, m, PROP_PRETTY_HOSTNAME, method_set_pretty_hostname, error); | |
60f067b4 | 626 | } |
663996b3 | 627 | |
e3bff60a MP |
628 | static int method_set_icon_name(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
629 | return set_machine_info(userdata, m, PROP_ICON_NAME, method_set_icon_name, error); | |
60f067b4 | 630 | } |
663996b3 | 631 | |
e3bff60a MP |
632 | static int method_set_chassis(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
633 | return set_machine_info(userdata, m, PROP_CHASSIS, method_set_chassis, error); | |
663996b3 MS |
634 | } |
635 | ||
e3bff60a MP |
636 | static int method_set_deployment(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
637 | return set_machine_info(userdata, m, PROP_DEPLOYMENT, method_set_deployment, error); | |
5eef597e MP |
638 | } |
639 | ||
e3bff60a MP |
640 | static int method_set_location(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
641 | return set_machine_info(userdata, m, PROP_LOCATION, method_set_location, error); | |
5eef597e MP |
642 | } |
643 | ||
60f067b4 JS |
644 | static const sd_bus_vtable hostname_vtable[] = { |
645 | SD_BUS_VTABLE_START(0), | |
5eef597e | 646 | SD_BUS_PROPERTY("Hostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
60f067b4 JS |
647 | SD_BUS_PROPERTY("StaticHostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_STATIC_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
648 | SD_BUS_PROPERTY("PrettyHostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_PRETTY_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
649 | SD_BUS_PROPERTY("IconName", "s", property_get_icon_name, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
650 | SD_BUS_PROPERTY("Chassis", "s", property_get_chassis, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
5eef597e MP |
651 | SD_BUS_PROPERTY("Deployment", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_DEPLOYMENT, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
652 | SD_BUS_PROPERTY("Location", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_LOCATION, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
60f067b4 JS |
653 | SD_BUS_PROPERTY("KernelName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_NAME, SD_BUS_VTABLE_PROPERTY_CONST), |
654 | SD_BUS_PROPERTY("KernelRelease", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_RELEASE, SD_BUS_VTABLE_PROPERTY_CONST), | |
655 | SD_BUS_PROPERTY("KernelVersion", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_VERSION, SD_BUS_VTABLE_PROPERTY_CONST), | |
656 | SD_BUS_PROPERTY("OperatingSystemPrettyName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_OS_PRETTY_NAME, SD_BUS_VTABLE_PROPERTY_CONST), | |
657 | SD_BUS_PROPERTY("OperatingSystemCPEName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_OS_CPE_NAME, SD_BUS_VTABLE_PROPERTY_CONST), | |
658 | SD_BUS_METHOD("SetHostname", "sb", NULL, method_set_hostname, SD_BUS_VTABLE_UNPRIVILEGED), | |
659 | SD_BUS_METHOD("SetStaticHostname", "sb", NULL, method_set_static_hostname, SD_BUS_VTABLE_UNPRIVILEGED), | |
660 | SD_BUS_METHOD("SetPrettyHostname", "sb", NULL, method_set_pretty_hostname, SD_BUS_VTABLE_UNPRIVILEGED), | |
661 | SD_BUS_METHOD("SetIconName", "sb", NULL, method_set_icon_name, SD_BUS_VTABLE_UNPRIVILEGED), | |
662 | SD_BUS_METHOD("SetChassis", "sb", NULL, method_set_chassis, SD_BUS_VTABLE_UNPRIVILEGED), | |
5eef597e MP |
663 | SD_BUS_METHOD("SetDeployment", "sb", NULL, method_set_deployment, SD_BUS_VTABLE_UNPRIVILEGED), |
664 | SD_BUS_METHOD("SetLocation", "sb", NULL, method_set_location, SD_BUS_VTABLE_UNPRIVILEGED), | |
60f067b4 JS |
665 | SD_BUS_VTABLE_END, |
666 | }; | |
667 | ||
668 | static int connect_bus(Context *c, sd_event *event, sd_bus **_bus) { | |
4c89c718 | 669 | _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; |
663996b3 MS |
670 | int r; |
671 | ||
60f067b4 JS |
672 | assert(c); |
673 | assert(event); | |
663996b3 MS |
674 | assert(_bus); |
675 | ||
60f067b4 | 676 | r = sd_bus_default_system(&bus); |
f47781d8 MP |
677 | if (r < 0) |
678 | return log_error_errno(r, "Failed to get system bus connection: %m"); | |
663996b3 | 679 | |
60f067b4 | 680 | r = sd_bus_add_object_vtable(bus, NULL, "/org/freedesktop/hostname1", "org.freedesktop.hostname1", hostname_vtable, c); |
f47781d8 MP |
681 | if (r < 0) |
682 | return log_error_errno(r, "Failed to register object: %m"); | |
663996b3 | 683 | |
60f067b4 | 684 | r = sd_bus_request_name(bus, "org.freedesktop.hostname1", 0); |
f47781d8 MP |
685 | if (r < 0) |
686 | return log_error_errno(r, "Failed to register name: %m"); | |
663996b3 | 687 | |
60f067b4 | 688 | r = sd_bus_attach_event(bus, event, 0); |
f47781d8 MP |
689 | if (r < 0) |
690 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
663996b3 | 691 | |
60f067b4 JS |
692 | *_bus = bus; |
693 | bus = NULL; | |
663996b3 MS |
694 | |
695 | return 0; | |
663996b3 MS |
696 | } |
697 | ||
698 | int main(int argc, char *argv[]) { | |
60f067b4 | 699 | Context context = {}; |
4c89c718 MP |
700 | _cleanup_(sd_event_unrefp) sd_event *event = NULL; |
701 | _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; | |
663996b3 | 702 | int r; |
663996b3 MS |
703 | |
704 | log_set_target(LOG_TARGET_AUTO); | |
705 | log_parse_environment(); | |
706 | log_open(); | |
707 | ||
708 | umask(0022); | |
5eef597e | 709 | mac_selinux_init("/etc"); |
663996b3 | 710 | |
663996b3 MS |
711 | if (argc != 1) { |
712 | log_error("This program takes no arguments."); | |
713 | r = -EINVAL; | |
714 | goto finish; | |
715 | } | |
716 | ||
60f067b4 JS |
717 | r = sd_event_default(&event); |
718 | if (r < 0) { | |
f47781d8 | 719 | log_error_errno(r, "Failed to allocate event loop: %m"); |
663996b3 | 720 | goto finish; |
60f067b4 | 721 | } |
663996b3 | 722 | |
60f067b4 | 723 | sd_event_set_watchdog(event, true); |
663996b3 | 724 | |
60f067b4 JS |
725 | r = connect_bus(&context, event, &bus); |
726 | if (r < 0) | |
727 | goto finish; | |
663996b3 | 728 | |
60f067b4 JS |
729 | r = context_read_data(&context); |
730 | if (r < 0) { | |
f47781d8 | 731 | log_error_errno(r, "Failed to read hostname and machine information: %m"); |
60f067b4 | 732 | goto finish; |
663996b3 MS |
733 | } |
734 | ||
60f067b4 JS |
735 | r = bus_event_loop_with_idle(event, bus, "org.freedesktop.hostname1", DEFAULT_EXIT_USEC, NULL, NULL); |
736 | if (r < 0) { | |
f47781d8 | 737 | log_error_errno(r, "Failed to run event loop: %m"); |
60f067b4 JS |
738 | goto finish; |
739 | } | |
663996b3 MS |
740 | |
741 | finish: | |
5eef597e | 742 | context_free(&context); |
663996b3 MS |
743 | |
744 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
745 | } |