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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> | |
f426cc5d | 24 | #include <sys/utsname.h> |
cf0fbc49 | 25 | #include <unistd.h> |
7640a5de | 26 | |
b5efdb8a | 27 | #include "alloc-util.h" |
6bedfcbb | 28 | #include "bus-util.h" |
ad740100 | 29 | #include "def.h" |
4d1a6904 | 30 | #include "env-util.h" |
66a4c743 | 31 | #include "event-util.h" |
6bedfcbb | 32 | #include "fileio-label.h" |
958b66ea | 33 | #include "hostname-util.h" |
6bedfcbb | 34 | #include "parse-util.h" |
bb15fafe | 35 | #include "path-util.h" |
6bedfcbb LP |
36 | #include "selinux-util.h" |
37 | #include "strv.h" | |
ee104e11 | 38 | #include "user-util.h" |
6bedfcbb LP |
39 | #include "util.h" |
40 | #include "virt.h" | |
91f9dcaf | 41 | |
799298d6 JG |
42 | #define VALID_DEPLOYMENT_CHARS (DIGITS LETTERS "-.:") |
43 | ||
7640a5de LP |
44 | enum { |
45 | PROP_HOSTNAME, | |
46 | PROP_STATIC_HOSTNAME, | |
47 | PROP_PRETTY_HOSTNAME, | |
48 | PROP_ICON_NAME, | |
7871c8e9 | 49 | PROP_CHASSIS, |
799298d6 | 50 | PROP_DEPLOYMENT, |
ce0f1493 | 51 | PROP_LOCATION, |
f426cc5d DH |
52 | PROP_KERNEL_NAME, |
53 | PROP_KERNEL_RELEASE, | |
9be3455f | 54 | PROP_KERNEL_VERSION, |
44c32988 DH |
55 | PROP_OS_PRETTY_NAME, |
56 | PROP_OS_CPE_NAME, | |
7640a5de LP |
57 | _PROP_MAX |
58 | }; | |
59 | ||
66a4c743 LP |
60 | typedef struct Context { |
61 | char *data[_PROP_MAX]; | |
62 | Hashmap *polkit_registry; | |
63 | } Context; | |
ad740100 | 64 | |
66a4c743 | 65 | static void context_reset(Context *c) { |
7640a5de LP |
66 | int p; |
67 | ||
66a4c743 LP |
68 | assert(c); |
69 | ||
1f6b4113 | 70 | for (p = 0; p < _PROP_MAX; p++) |
a1e58e8e | 71 | c->data[p] = mfree(c->data[p]); |
7640a5de LP |
72 | } |
73 | ||
36e34057 | 74 | static void context_free(Context *c) { |
66a4c743 LP |
75 | assert(c); |
76 | ||
77 | context_reset(c); | |
36e34057 | 78 | bus_verify_polkit_async_registry_free(c->polkit_registry); |
66a4c743 LP |
79 | } |
80 | ||
81 | static int context_read_data(Context *c) { | |
7640a5de | 82 | int r; |
f426cc5d | 83 | struct utsname u; |
7640a5de | 84 | |
66a4c743 LP |
85 | assert(c); |
86 | ||
87 | context_reset(c); | |
7640a5de | 88 | |
f426cc5d DH |
89 | assert_se(uname(&u) >= 0); |
90 | c->data[PROP_KERNEL_NAME] = strdup(u.sysname); | |
91 | c->data[PROP_KERNEL_RELEASE] = strdup(u.release); | |
9be3455f DH |
92 | c->data[PROP_KERNEL_VERSION] = strdup(u.version); |
93 | if (!c->data[PROP_KERNEL_NAME] || !c->data[PROP_KERNEL_RELEASE] || | |
94 | !c->data[PROP_KERNEL_VERSION]) | |
f426cc5d DH |
95 | return -ENOMEM; |
96 | ||
66a4c743 LP |
97 | c->data[PROP_HOSTNAME] = gethostname_malloc(); |
98 | if (!c->data[PROP_HOSTNAME]) | |
7640a5de LP |
99 | return -ENOMEM; |
100 | ||
139e5336 | 101 | r = read_hostname_config("/etc/hostname", &c->data[PROP_STATIC_HOSTNAME]); |
7640a5de LP |
102 | if (r < 0 && r != -ENOENT) |
103 | return r; | |
104 | ||
105 | r = parse_env_file("/etc/machine-info", NEWLINE, | |
66a4c743 LP |
106 | "PRETTY_HOSTNAME", &c->data[PROP_PRETTY_HOSTNAME], |
107 | "ICON_NAME", &c->data[PROP_ICON_NAME], | |
108 | "CHASSIS", &c->data[PROP_CHASSIS], | |
799298d6 | 109 | "DEPLOYMENT", &c->data[PROP_DEPLOYMENT], |
ce0f1493 | 110 | "LOCATION", &c->data[PROP_LOCATION], |
7640a5de LP |
111 | NULL); |
112 | if (r < 0 && r != -ENOENT) | |
113 | return r; | |
114 | ||
44c32988 DH |
115 | r = parse_env_file("/etc/os-release", NEWLINE, |
116 | "PRETTY_NAME", &c->data[PROP_OS_PRETTY_NAME], | |
117 | "CPE_NAME", &c->data[PROP_OS_CPE_NAME], | |
118 | NULL); | |
ece174c5 | 119 | if (r == -ENOENT) |
5ae4d543 LP |
120 | r = parse_env_file("/usr/lib/os-release", NEWLINE, |
121 | "PRETTY_NAME", &c->data[PROP_OS_PRETTY_NAME], | |
122 | "CPE_NAME", &c->data[PROP_OS_CPE_NAME], | |
123 | NULL); | |
5ae4d543 | 124 | |
44c32988 DH |
125 | if (r < 0 && r != -ENOENT) |
126 | return r; | |
127 | ||
7640a5de LP |
128 | return 0; |
129 | } | |
130 | ||
7871c8e9 | 131 | static bool valid_chassis(const char *chassis) { |
7871c8e9 LP |
132 | assert(chassis); |
133 | ||
134 | return nulstr_contains( | |
135 | "vm\0" | |
136 | "container\0" | |
137 | "desktop\0" | |
138 | "laptop\0" | |
139 | "server\0" | |
140 | "tablet\0" | |
c49e59c1 | 141 | "handset\0" |
25fa306e LP |
142 | "watch\0" |
143 | "embedded\0", | |
7871c8e9 LP |
144 | chassis); |
145 | } | |
146 | ||
799298d6 JG |
147 | static bool valid_deployment(const char *deployment) { |
148 | assert(deployment); | |
149 | ||
c2142cf1 | 150 | return in_charset(deployment, VALID_DEPLOYMENT_CHARS); |
799298d6 JG |
151 | } |
152 | ||
7871c8e9 | 153 | static const char* fallback_chassis(void) { |
7640a5de LP |
154 | int r; |
155 | char *type; | |
156 | unsigned t; | |
248fab74 | 157 | int v; |
7871c8e9 | 158 | |
75f86906 | 159 | v = detect_virtualization(); |
7871c8e9 | 160 | |
75f86906 | 161 | if (VIRTUALIZATION_IS_VM(v)) |
7871c8e9 | 162 | return "vm"; |
75f86906 | 163 | if (VIRTUALIZATION_IS_CONTAINER(v)) |
7871c8e9 LP |
164 | return "container"; |
165 | ||
166 | r = read_one_line_file("/sys/firmware/acpi/pm_profile", &type); | |
167 | if (r < 0) | |
168 | goto try_dmi; | |
169 | ||
170 | r = safe_atou(type, &t); | |
171 | free(type); | |
172 | if (r < 0) | |
173 | goto try_dmi; | |
174 | ||
175 | /* We only list the really obvious cases here as the ACPI data | |
176 | * is not really super reliable. | |
177 | * | |
178 | * See the ACPI 5.0 Spec Section 5.2.9.1 for details: | |
179 | * | |
180 | * http://www.acpi.info/DOWNLOADS/ACPIspec50.pdf | |
181 | */ | |
182 | ||
183 | switch(t) { | |
184 | ||
185 | case 1: | |
186 | case 3: | |
187 | case 6: | |
188 | return "desktop"; | |
189 | ||
190 | case 2: | |
191 | return "laptop"; | |
7640a5de | 192 | |
7871c8e9 LP |
193 | case 4: |
194 | case 5: | |
195 | case 7: | |
196 | return "server"; | |
7640a5de | 197 | |
7871c8e9 LP |
198 | case 8: |
199 | return "tablet"; | |
200 | } | |
201 | ||
202 | try_dmi: | |
7640a5de LP |
203 | r = read_one_line_file("/sys/class/dmi/id/chassis_type", &type); |
204 | if (r < 0) | |
205 | return NULL; | |
206 | ||
207 | r = safe_atou(type, &t); | |
208 | free(type); | |
7640a5de LP |
209 | if (r < 0) |
210 | return NULL; | |
211 | ||
212 | /* We only list the really obvious cases here. The DMI data is | |
213 | unreliable enough, so let's not do any additional guesswork | |
41550d40 LP |
214 | on top of that. |
215 | ||
216 | See the SMBIOS Specification 2.7.1 section 7.4.1 for | |
217 | details about the values listed here: | |
218 | ||
219 | http://www.dmtf.org/sites/default/files/standards/documents/DSP0134_2.7.1.pdf | |
220 | */ | |
7640a5de LP |
221 | |
222 | switch (t) { | |
223 | ||
224 | case 0x3: | |
225 | case 0x4: | |
226 | case 0x6: | |
227 | case 0x7: | |
7871c8e9 | 228 | return "desktop"; |
7640a5de | 229 | |
7871c8e9 | 230 | case 0x8: |
7640a5de LP |
231 | case 0x9: |
232 | case 0xA: | |
233 | case 0xE: | |
7871c8e9 LP |
234 | return "laptop"; |
235 | ||
236 | case 0xB: | |
237 | return "handset"; | |
7640a5de LP |
238 | |
239 | case 0x11: | |
41550d40 | 240 | case 0x1C: |
7871c8e9 | 241 | return "server"; |
7640a5de LP |
242 | } |
243 | ||
7640a5de LP |
244 | return NULL; |
245 | } | |
246 | ||
66a4c743 | 247 | static char* context_fallback_icon_name(Context *c) { |
7871c8e9 LP |
248 | const char *chassis; |
249 | ||
66a4c743 LP |
250 | assert(c); |
251 | ||
252 | if (!isempty(c->data[PROP_CHASSIS])) | |
253 | return strappend("computer-", c->data[PROP_CHASSIS]); | |
7871c8e9 LP |
254 | |
255 | chassis = fallback_chassis(); | |
256 | if (chassis) | |
257 | return strappend("computer-", chassis); | |
258 | ||
259 | return strdup("computer"); | |
260 | } | |
261 | ||
799298d6 | 262 | |
c779a442 | 263 | static bool hostname_is_useful(const char *hn) { |
fecc80c1 | 264 | return !isempty(hn) && !is_localhost(hn); |
c779a442 SW |
265 | } |
266 | ||
267 | static int context_update_kernel_hostname(Context *c) { | |
268 | const char *static_hn; | |
7640a5de LP |
269 | const char *hn; |
270 | ||
66a4c743 LP |
271 | assert(c); |
272 | ||
c779a442 SW |
273 | static_hn = c->data[PROP_STATIC_HOSTNAME]; |
274 | ||
275 | /* /etc/hostname with something other than "localhost" | |
276 | * has the highest preference ... */ | |
277 | if (hostname_is_useful(static_hn)) | |
278 | hn = static_hn; | |
279 | ||
f7340ab2 | 280 | /* ... the transient host name, (ie: DHCP) comes next ... */ |
c779a442 | 281 | else if (!isempty(c->data[PROP_HOSTNAME])) |
66a4c743 | 282 | hn = c->data[PROP_HOSTNAME]; |
7640a5de | 283 | |
c779a442 SW |
284 | /* ... fallback to static "localhost.*" ignored above ... */ |
285 | else if (!isempty(static_hn)) | |
286 | hn = static_hn; | |
287 | ||
288 | /* ... and the ultimate fallback */ | |
289 | else | |
290 | hn = "localhost"; | |
291 | ||
605f81a8 | 292 | if (sethostname_idempotent(hn) < 0) |
7640a5de LP |
293 | return -errno; |
294 | ||
295 | return 0; | |
296 | } | |
297 | ||
66a4c743 | 298 | static int context_write_data_static_hostname(Context *c) { |
7640a5de | 299 | |
66a4c743 LP |
300 | assert(c); |
301 | ||
302 | if (isempty(c->data[PROP_STATIC_HOSTNAME])) { | |
7640a5de LP |
303 | |
304 | if (unlink("/etc/hostname") < 0) | |
305 | return errno == ENOENT ? 0 : -errno; | |
306 | ||
307 | return 0; | |
308 | } | |
66a4c743 | 309 | return write_string_file_atomic_label("/etc/hostname", c->data[PROP_STATIC_HOSTNAME]); |
7640a5de LP |
310 | } |
311 | ||
f200e8bb | 312 | static int context_write_data_machine_info(Context *c) { |
4f34ed54 | 313 | |
7640a5de LP |
314 | static const char * const name[_PROP_MAX] = { |
315 | [PROP_PRETTY_HOSTNAME] = "PRETTY_HOSTNAME", | |
7871c8e9 | 316 | [PROP_ICON_NAME] = "ICON_NAME", |
799298d6 JG |
317 | [PROP_CHASSIS] = "CHASSIS", |
318 | [PROP_DEPLOYMENT] = "DEPLOYMENT", | |
ce0f1493 | 319 | [PROP_LOCATION] = "LOCATION", |
7640a5de LP |
320 | }; |
321 | ||
0ccad099 | 322 | _cleanup_strv_free_ char **l = NULL; |
7640a5de LP |
323 | int r, p; |
324 | ||
66a4c743 LP |
325 | assert(c); |
326 | ||
717603e3 | 327 | r = load_env_file(NULL, "/etc/machine-info", NULL, &l); |
7640a5de LP |
328 | if (r < 0 && r != -ENOENT) |
329 | return r; | |
330 | ||
ce0f1493 | 331 | for (p = PROP_PRETTY_HOSTNAME; p <= PROP_LOCATION; p++) { |
d77ab3f7 LP |
332 | _cleanup_free_ char *t = NULL; |
333 | char **u; | |
7640a5de LP |
334 | |
335 | assert(name[p]); | |
336 | ||
66a4c743 | 337 | if (isempty(c->data[p])) { |
f8440af5 | 338 | strv_env_unset(l, name[p]); |
7640a5de LP |
339 | continue; |
340 | } | |
341 | ||
d77ab3f7 LP |
342 | t = strjoin(name[p], "=", c->data[p], NULL); |
343 | if (!t) | |
7640a5de | 344 | return -ENOMEM; |
7640a5de LP |
345 | |
346 | u = strv_env_set(l, t); | |
7640a5de LP |
347 | if (!u) |
348 | return -ENOMEM; | |
0ccad099 LP |
349 | |
350 | strv_free(l); | |
7640a5de LP |
351 | l = u; |
352 | } | |
353 | ||
354 | if (strv_isempty(l)) { | |
7640a5de LP |
355 | if (unlink("/etc/machine-info") < 0) |
356 | return errno == ENOENT ? 0 : -errno; | |
357 | ||
358 | return 0; | |
359 | } | |
360 | ||
0ccad099 | 361 | return write_env_file_label("/etc/machine-info", l); |
7640a5de LP |
362 | } |
363 | ||
66a4c743 LP |
364 | static int property_get_icon_name( |
365 | sd_bus *bus, | |
366 | const char *path, | |
367 | const char *interface, | |
368 | const char *property, | |
369 | sd_bus_message *reply, | |
ebcf1f97 LP |
370 | void *userdata, |
371 | sd_bus_error *error) { | |
7640a5de | 372 | |
66a4c743 LP |
373 | _cleanup_free_ char *n = NULL; |
374 | Context *c = userdata; | |
375 | const char *name; | |
7640a5de | 376 | |
66a4c743 LP |
377 | if (isempty(c->data[PROP_ICON_NAME])) |
378 | name = n = context_fallback_icon_name(c); | |
7640a5de | 379 | else |
66a4c743 LP |
380 | name = c->data[PROP_ICON_NAME]; |
381 | ||
382 | if (!name) | |
383 | return -ENOMEM; | |
7640a5de | 384 | |
ebcf1f97 | 385 | return sd_bus_message_append(reply, "s", name); |
7640a5de LP |
386 | } |
387 | ||
66a4c743 LP |
388 | static int property_get_chassis( |
389 | sd_bus *bus, | |
390 | const char *path, | |
391 | const char *interface, | |
392 | const char *property, | |
393 | sd_bus_message *reply, | |
ebcf1f97 LP |
394 | void *userdata, |
395 | sd_bus_error *error) { | |
7871c8e9 | 396 | |
66a4c743 LP |
397 | Context *c = userdata; |
398 | const char *name; | |
7871c8e9 | 399 | |
66a4c743 | 400 | if (isempty(c->data[PROP_CHASSIS])) |
7871c8e9 LP |
401 | name = fallback_chassis(); |
402 | else | |
66a4c743 | 403 | name = c->data[PROP_CHASSIS]; |
7871c8e9 | 404 | |
ebcf1f97 | 405 | return sd_bus_message_append(reply, "s", name); |
7871c8e9 LP |
406 | } |
407 | ||
19070062 | 408 | static int method_set_hostname(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
66a4c743 LP |
409 | Context *c = userdata; |
410 | const char *name; | |
102d8f81 | 411 | int interactive; |
66a4c743 LP |
412 | char *h; |
413 | int r; | |
d200735e | 414 | |
19070062 LP |
415 | assert(m); |
416 | assert(c); | |
417 | ||
66a4c743 LP |
418 | r = sd_bus_message_read(m, "sb", &name, &interactive); |
419 | if (r < 0) | |
ebcf1f97 | 420 | return r; |
d200735e | 421 | |
66a4c743 LP |
422 | if (isempty(name)) |
423 | name = c->data[PROP_STATIC_HOSTNAME]; | |
7640a5de | 424 | |
66a4c743 LP |
425 | if (isempty(name)) |
426 | name = "localhost"; | |
7640a5de | 427 | |
8fb49443 | 428 | if (!hostname_is_valid(name, false)) |
ebcf1f97 | 429 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid hostname '%s'", name); |
7640a5de | 430 | |
66a4c743 | 431 | if (streq_ptr(name, c->data[PROP_HOSTNAME])) |
df2d202e | 432 | return sd_bus_reply_method_return(m, NULL); |
7640a5de | 433 | |
c529695e LP |
434 | r = bus_verify_polkit_async( |
435 | m, | |
436 | CAP_SYS_ADMIN, | |
437 | "org.freedesktop.hostname1.set-hostname", | |
403ed0e5 | 438 | NULL, |
c529695e LP |
439 | interactive, |
440 | UID_INVALID, | |
441 | &c->polkit_registry, | |
442 | error); | |
66a4c743 | 443 | if (r < 0) |
ebcf1f97 | 444 | return r; |
66a4c743 LP |
445 | if (r == 0) |
446 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
7640a5de | 447 | |
66a4c743 LP |
448 | h = strdup(name); |
449 | if (!h) | |
ebcf1f97 | 450 | return -ENOMEM; |
7640a5de | 451 | |
66a4c743 LP |
452 | free(c->data[PROP_HOSTNAME]); |
453 | c->data[PROP_HOSTNAME] = h; | |
7640a5de | 454 | |
c779a442 | 455 | r = context_update_kernel_hostname(c); |
66a4c743 | 456 | if (r < 0) { |
da927ba9 | 457 | log_error_errno(r, "Failed to set host name: %m"); |
ebcf1f97 | 458 | return sd_bus_error_set_errnof(error, r, "Failed to set hostname: %s", strerror(-r)); |
66a4c743 | 459 | } |
7640a5de | 460 | |
66a4c743 | 461 | log_info("Changed host name to '%s'", strna(c->data[PROP_HOSTNAME])); |
7640a5de | 462 | |
19070062 | 463 | (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), "/org/freedesktop/hostname1", "org.freedesktop.hostname1", "Hostname", NULL); |
7640a5de | 464 | |
df2d202e | 465 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 466 | } |
7640a5de | 467 | |
19070062 | 468 | static int method_set_static_hostname(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
66a4c743 LP |
469 | Context *c = userdata; |
470 | const char *name; | |
102d8f81 | 471 | int interactive; |
66a4c743 | 472 | int r; |
7640a5de | 473 | |
19070062 LP |
474 | assert(m); |
475 | assert(c); | |
476 | ||
66a4c743 LP |
477 | r = sd_bus_message_read(m, "sb", &name, &interactive); |
478 | if (r < 0) | |
ebcf1f97 | 479 | return r; |
7640a5de | 480 | |
66a4c743 LP |
481 | if (isempty(name)) |
482 | name = NULL; | |
7640a5de | 483 | |
66a4c743 | 484 | if (streq_ptr(name, c->data[PROP_STATIC_HOSTNAME])) |
df2d202e | 485 | return sd_bus_reply_method_return(m, NULL); |
7640a5de | 486 | |
c529695e LP |
487 | r = bus_verify_polkit_async( |
488 | m, | |
489 | CAP_SYS_ADMIN, | |
490 | "org.freedesktop.hostname1.set-static-hostname", | |
403ed0e5 | 491 | NULL, |
c529695e LP |
492 | interactive, |
493 | UID_INVALID, | |
494 | &c->polkit_registry, | |
495 | error); | |
66a4c743 | 496 | if (r < 0) |
ebcf1f97 | 497 | return r; |
66a4c743 LP |
498 | if (r == 0) |
499 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
7640a5de | 500 | |
66a4c743 | 501 | if (isempty(name)) { |
a1e58e8e | 502 | c->data[PROP_STATIC_HOSTNAME] = mfree(c->data[PROP_STATIC_HOSTNAME]); |
66a4c743 LP |
503 | } else { |
504 | char *h; | |
7640a5de | 505 | |
8fb49443 | 506 | if (!hostname_is_valid(name, false)) |
ebcf1f97 | 507 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid static hostname '%s'", name); |
7640a5de | 508 | |
66a4c743 LP |
509 | h = strdup(name); |
510 | if (!h) | |
ebcf1f97 | 511 | return -ENOMEM; |
7640a5de | 512 | |
66a4c743 LP |
513 | free(c->data[PROP_STATIC_HOSTNAME]); |
514 | c->data[PROP_STATIC_HOSTNAME] = h; | |
515 | } | |
7640a5de | 516 | |
c779a442 SW |
517 | r = context_update_kernel_hostname(c); |
518 | if (r < 0) { | |
da927ba9 | 519 | log_error_errno(r, "Failed to set host name: %m"); |
c779a442 SW |
520 | return sd_bus_error_set_errnof(error, r, "Failed to set hostname: %s", strerror(-r)); |
521 | } | |
522 | ||
66a4c743 LP |
523 | r = context_write_data_static_hostname(c); |
524 | if (r < 0) { | |
da927ba9 | 525 | log_error_errno(r, "Failed to write static host name: %m"); |
ebcf1f97 | 526 | return sd_bus_error_set_errnof(error, r, "Failed to set static hostname: %s", strerror(-r)); |
66a4c743 | 527 | } |
7640a5de | 528 | |
66a4c743 | 529 | log_info("Changed static host name to '%s'", strna(c->data[PROP_STATIC_HOSTNAME])); |
7640a5de | 530 | |
19070062 | 531 | (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), "/org/freedesktop/hostname1", "org.freedesktop.hostname1", "StaticHostname", NULL); |
7640a5de | 532 | |
df2d202e | 533 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 534 | } |
7640a5de | 535 | |
19070062 | 536 | static int set_machine_info(Context *c, sd_bus_message *m, int prop, sd_bus_message_handler_t cb, sd_bus_error *error) { |
102d8f81 | 537 | int interactive; |
66a4c743 LP |
538 | const char *name; |
539 | int r; | |
540 | ||
541 | assert(c); | |
66a4c743 LP |
542 | assert(m); |
543 | ||
544 | r = sd_bus_message_read(m, "sb", &name, &interactive); | |
545 | if (r < 0) | |
ebcf1f97 | 546 | return r; |
66a4c743 LP |
547 | |
548 | if (isempty(name)) | |
549 | name = NULL; | |
550 | ||
551 | if (streq_ptr(name, c->data[prop])) | |
df2d202e | 552 | return sd_bus_reply_method_return(m, NULL); |
7640a5de | 553 | |
66a4c743 LP |
554 | /* Since the pretty hostname should always be changed at the |
555 | * same time as the static one, use the same policy action for | |
556 | * both... */ | |
557 | ||
c529695e LP |
558 | r = bus_verify_polkit_async( |
559 | m, | |
560 | CAP_SYS_ADMIN, | |
561 | prop == PROP_PRETTY_HOSTNAME ? "org.freedesktop.hostname1.set-static-hostname" : "org.freedesktop.hostname1.set-machine-info", | |
403ed0e5 | 562 | NULL, |
c529695e LP |
563 | interactive, |
564 | UID_INVALID, | |
565 | &c->polkit_registry, | |
566 | error); | |
66a4c743 | 567 | if (r < 0) |
ebcf1f97 | 568 | return r; |
66a4c743 LP |
569 | if (r == 0) |
570 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
571 | ||
572 | if (isempty(name)) { | |
a1e58e8e | 573 | c->data[prop] = mfree(c->data[prop]); |
66a4c743 LP |
574 | } else { |
575 | char *h; | |
576 | ||
577 | /* The icon name might ultimately be used as file | |
578 | * name, so better be safe than sorry */ | |
579 | ||
ae6c3cc0 | 580 | if (prop == PROP_ICON_NAME && !filename_is_valid(name)) |
ebcf1f97 | 581 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid icon name '%s'", name); |
6294aa76 | 582 | if (prop == PROP_PRETTY_HOSTNAME && string_has_cc(name, NULL)) |
ebcf1f97 | 583 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid pretty host name '%s'", name); |
66a4c743 | 584 | if (prop == PROP_CHASSIS && !valid_chassis(name)) |
ebcf1f97 | 585 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid chassis '%s'", name); |
799298d6 JG |
586 | if (prop == PROP_DEPLOYMENT && !valid_deployment(name)) |
587 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid deployment '%s'", name); | |
ce0f1493 LP |
588 | if (prop == PROP_LOCATION && string_has_cc(name, NULL)) |
589 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid location '%s'", name); | |
66a4c743 LP |
590 | |
591 | h = strdup(name); | |
592 | if (!h) | |
ebcf1f97 | 593 | return -ENOMEM; |
66a4c743 LP |
594 | |
595 | free(c->data[prop]); | |
596 | c->data[prop] = h; | |
7640a5de LP |
597 | } |
598 | ||
f200e8bb | 599 | r = context_write_data_machine_info(c); |
66a4c743 | 600 | if (r < 0) { |
da927ba9 | 601 | log_error_errno(r, "Failed to write machine info: %m"); |
ebcf1f97 | 602 | return sd_bus_error_set_errnof(error, r, "Failed to write machine info: %s", strerror(-r)); |
66a4c743 | 603 | } |
7640a5de | 604 | |
66a4c743 LP |
605 | log_info("Changed %s to '%s'", |
606 | prop == PROP_PRETTY_HOSTNAME ? "pretty host name" : | |
799298d6 | 607 | prop == PROP_DEPLOYMENT ? "deployment" : |
ce0f1493 | 608 | prop == PROP_LOCATION ? "location" : |
66a4c743 | 609 | prop == PROP_CHASSIS ? "chassis" : "icon name", strna(c->data[prop])); |
7640a5de | 610 | |
19070062 LP |
611 | (void) sd_bus_emit_properties_changed( |
612 | sd_bus_message_get_bus(m), | |
613 | "/org/freedesktop/hostname1", | |
614 | "org.freedesktop.hostname1", | |
615 | prop == PROP_PRETTY_HOSTNAME ? "PrettyHostname" : | |
616 | prop == PROP_DEPLOYMENT ? "Deployment" : | |
617 | prop == PROP_LOCATION ? "Location" : | |
618 | prop == PROP_CHASSIS ? "Chassis" : "IconName" , NULL); | |
7640a5de | 619 | |
df2d202e | 620 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 621 | } |
7640a5de | 622 | |
19070062 LP |
623 | static int method_set_pretty_hostname(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
624 | return set_machine_info(userdata, m, PROP_PRETTY_HOSTNAME, method_set_pretty_hostname, error); | |
7640a5de LP |
625 | } |
626 | ||
19070062 LP |
627 | static int method_set_icon_name(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
628 | return set_machine_info(userdata, m, PROP_ICON_NAME, method_set_icon_name, error); | |
66a4c743 LP |
629 | } |
630 | ||
19070062 LP |
631 | static int method_set_chassis(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
632 | return set_machine_info(userdata, m, PROP_CHASSIS, method_set_chassis, error); | |
66a4c743 LP |
633 | } |
634 | ||
19070062 LP |
635 | static int method_set_deployment(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
636 | return set_machine_info(userdata, m, PROP_DEPLOYMENT, method_set_deployment, error); | |
799298d6 JG |
637 | } |
638 | ||
19070062 LP |
639 | static int method_set_location(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
640 | return set_machine_info(userdata, m, PROP_LOCATION, method_set_location, error); | |
ce0f1493 LP |
641 | } |
642 | ||
66a4c743 LP |
643 | static const sd_bus_vtable hostname_vtable[] = { |
644 | SD_BUS_VTABLE_START(0), | |
caffbef6 | 645 | SD_BUS_PROPERTY("Hostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
66a4c743 LP |
646 | SD_BUS_PROPERTY("StaticHostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_STATIC_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
647 | SD_BUS_PROPERTY("PrettyHostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_PRETTY_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
648 | SD_BUS_PROPERTY("IconName", "s", property_get_icon_name, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
649 | SD_BUS_PROPERTY("Chassis", "s", property_get_chassis, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
ce0f1493 LP |
650 | SD_BUS_PROPERTY("Deployment", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_DEPLOYMENT, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
651 | SD_BUS_PROPERTY("Location", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_LOCATION, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
f426cc5d DH |
652 | SD_BUS_PROPERTY("KernelName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_NAME, SD_BUS_VTABLE_PROPERTY_CONST), |
653 | SD_BUS_PROPERTY("KernelRelease", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_RELEASE, SD_BUS_VTABLE_PROPERTY_CONST), | |
9be3455f | 654 | SD_BUS_PROPERTY("KernelVersion", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_VERSION, SD_BUS_VTABLE_PROPERTY_CONST), |
44c32988 DH |
655 | SD_BUS_PROPERTY("OperatingSystemPrettyName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_OS_PRETTY_NAME, SD_BUS_VTABLE_PROPERTY_CONST), |
656 | SD_BUS_PROPERTY("OperatingSystemCPEName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_OS_CPE_NAME, SD_BUS_VTABLE_PROPERTY_CONST), | |
adacb957 LP |
657 | SD_BUS_METHOD("SetHostname", "sb", NULL, method_set_hostname, SD_BUS_VTABLE_UNPRIVILEGED), |
658 | SD_BUS_METHOD("SetStaticHostname", "sb", NULL, method_set_static_hostname, SD_BUS_VTABLE_UNPRIVILEGED), | |
659 | SD_BUS_METHOD("SetPrettyHostname", "sb", NULL, method_set_pretty_hostname, SD_BUS_VTABLE_UNPRIVILEGED), | |
660 | SD_BUS_METHOD("SetIconName", "sb", NULL, method_set_icon_name, SD_BUS_VTABLE_UNPRIVILEGED), | |
661 | SD_BUS_METHOD("SetChassis", "sb", NULL, method_set_chassis, SD_BUS_VTABLE_UNPRIVILEGED), | |
799298d6 | 662 | SD_BUS_METHOD("SetDeployment", "sb", NULL, method_set_deployment, SD_BUS_VTABLE_UNPRIVILEGED), |
ce0f1493 | 663 | SD_BUS_METHOD("SetLocation", "sb", NULL, method_set_location, SD_BUS_VTABLE_UNPRIVILEGED), |
66a4c743 LP |
664 | SD_BUS_VTABLE_END, |
665 | }; | |
666 | ||
667 | static int connect_bus(Context *c, sd_event *event, sd_bus **_bus) { | |
03976f7b | 668 | _cleanup_bus_flush_close_unref_ sd_bus *bus = NULL; |
7640a5de LP |
669 | int r; |
670 | ||
66a4c743 LP |
671 | assert(c); |
672 | assert(event); | |
d0baa06f LP |
673 | assert(_bus); |
674 | ||
76b54375 | 675 | r = sd_bus_default_system(&bus); |
23bbb0de MS |
676 | if (r < 0) |
677 | return log_error_errno(r, "Failed to get system bus connection: %m"); | |
d0baa06f | 678 | |
19befb2d | 679 | r = sd_bus_add_object_vtable(bus, NULL, "/org/freedesktop/hostname1", "org.freedesktop.hostname1", hostname_vtable, c); |
23bbb0de MS |
680 | if (r < 0) |
681 | return log_error_errno(r, "Failed to register object: %m"); | |
d0baa06f | 682 | |
5bb658a1 | 683 | r = sd_bus_request_name(bus, "org.freedesktop.hostname1", 0); |
23bbb0de MS |
684 | if (r < 0) |
685 | return log_error_errno(r, "Failed to register name: %m"); | |
add10b5a | 686 | |
66a4c743 | 687 | r = sd_bus_attach_event(bus, event, 0); |
23bbb0de MS |
688 | if (r < 0) |
689 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
d0baa06f | 690 | |
66a4c743 LP |
691 | *_bus = bus; |
692 | bus = NULL; | |
d0baa06f | 693 | |
66a4c743 | 694 | return 0; |
d0baa06f LP |
695 | } |
696 | ||
697 | int main(int argc, char *argv[]) { | |
66a4c743 | 698 | Context context = {}; |
66a4c743 | 699 | _cleanup_event_unref_ sd_event *event = NULL; |
03976f7b | 700 | _cleanup_bus_flush_close_unref_ sd_bus *bus = NULL; |
d0baa06f | 701 | int r; |
d0baa06f | 702 | |
7640a5de LP |
703 | log_set_target(LOG_TARGET_AUTO); |
704 | log_parse_environment(); | |
705 | log_open(); | |
706 | ||
4c12626c | 707 | umask(0022); |
cc56fafe | 708 | mac_selinux_init("/etc"); |
4c12626c | 709 | |
7640a5de LP |
710 | if (argc != 1) { |
711 | log_error("This program takes no arguments."); | |
712 | r = -EINVAL; | |
713 | goto finish; | |
714 | } | |
715 | ||
afc6adb5 | 716 | r = sd_event_default(&event); |
7640a5de | 717 | if (r < 0) { |
da927ba9 | 718 | log_error_errno(r, "Failed to allocate event loop: %m"); |
7640a5de LP |
719 | goto finish; |
720 | } | |
721 | ||
cde93897 LP |
722 | sd_event_set_watchdog(event, true); |
723 | ||
66a4c743 | 724 | r = connect_bus(&context, event, &bus); |
d0baa06f | 725 | if (r < 0) |
7640a5de | 726 | goto finish; |
7640a5de | 727 | |
66a4c743 LP |
728 | r = context_read_data(&context); |
729 | if (r < 0) { | |
da927ba9 | 730 | log_error_errno(r, "Failed to read hostname and machine information: %m"); |
66a4c743 LP |
731 | goto finish; |
732 | } | |
ad740100 | 733 | |
37224a5f | 734 | r = bus_event_loop_with_idle(event, bus, "org.freedesktop.hostname1", DEFAULT_EXIT_USEC, NULL, NULL); |
66a4c743 | 735 | if (r < 0) { |
da927ba9 | 736 | log_error_errno(r, "Failed to run event loop: %m"); |
66a4c743 | 737 | goto finish; |
ad740100 | 738 | } |
7640a5de | 739 | |
7640a5de | 740 | finish: |
36e34057 | 741 | context_free(&context); |
7640a5de | 742 | |
7640a5de LP |
743 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
744 | } |