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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 | 26 | |
6bedfcbb | 27 | #include "bus-util.h" |
ad740100 | 28 | #include "def.h" |
4d1a6904 | 29 | #include "env-util.h" |
66a4c743 | 30 | #include "event-util.h" |
6bedfcbb | 31 | #include "fileio-label.h" |
958b66ea | 32 | #include "hostname-util.h" |
6bedfcbb LP |
33 | #include "parse-util.h" |
34 | #include "selinux-util.h" | |
35 | #include "strv.h" | |
36 | #include "util.h" | |
37 | #include "virt.h" | |
91f9dcaf | 38 | |
799298d6 JG |
39 | #define VALID_DEPLOYMENT_CHARS (DIGITS LETTERS "-.:") |
40 | ||
7640a5de LP |
41 | enum { |
42 | PROP_HOSTNAME, | |
43 | PROP_STATIC_HOSTNAME, | |
44 | PROP_PRETTY_HOSTNAME, | |
45 | PROP_ICON_NAME, | |
7871c8e9 | 46 | PROP_CHASSIS, |
799298d6 | 47 | PROP_DEPLOYMENT, |
ce0f1493 | 48 | PROP_LOCATION, |
f426cc5d DH |
49 | PROP_KERNEL_NAME, |
50 | PROP_KERNEL_RELEASE, | |
9be3455f | 51 | PROP_KERNEL_VERSION, |
44c32988 DH |
52 | PROP_OS_PRETTY_NAME, |
53 | PROP_OS_CPE_NAME, | |
7640a5de LP |
54 | _PROP_MAX |
55 | }; | |
56 | ||
66a4c743 LP |
57 | typedef struct Context { |
58 | char *data[_PROP_MAX]; | |
59 | Hashmap *polkit_registry; | |
60 | } Context; | |
ad740100 | 61 | |
66a4c743 | 62 | static void context_reset(Context *c) { |
7640a5de LP |
63 | int p; |
64 | ||
66a4c743 LP |
65 | assert(c); |
66 | ||
1f6b4113 | 67 | for (p = 0; p < _PROP_MAX; p++) |
a1e58e8e | 68 | c->data[p] = mfree(c->data[p]); |
7640a5de LP |
69 | } |
70 | ||
36e34057 | 71 | static void context_free(Context *c) { |
66a4c743 LP |
72 | assert(c); |
73 | ||
74 | context_reset(c); | |
36e34057 | 75 | bus_verify_polkit_async_registry_free(c->polkit_registry); |
66a4c743 LP |
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 | ||
139e5336 | 98 | r = read_hostname_config("/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); | |
ece174c5 | 116 | if (r == -ENOENT) |
5ae4d543 LP |
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); | |
5ae4d543 | 121 | |
44c32988 DH |
122 | if (r < 0 && r != -ENOENT) |
123 | return r; | |
124 | ||
7640a5de LP |
125 | return 0; |
126 | } | |
127 | ||
7871c8e9 | 128 | static bool valid_chassis(const char *chassis) { |
7871c8e9 LP |
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" | |
c49e59c1 | 138 | "handset\0" |
25fa306e LP |
139 | "watch\0" |
140 | "embedded\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 | 155 | |
75f86906 | 156 | v = detect_virtualization(); |
7871c8e9 | 157 | |
75f86906 | 158 | if (VIRTUALIZATION_IS_VM(v)) |
7871c8e9 | 159 | return "vm"; |
75f86906 | 160 | if (VIRTUALIZATION_IS_CONTAINER(v)) |
7871c8e9 LP |
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 | ||
f7340ab2 | 277 | /* ... the transient host name, (ie: DHCP) comes next ... */ |
c779a442 | 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 | ||
605f81a8 | 289 | if (sethostname_idempotent(hn) < 0) |
7640a5de LP |
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 | ||
19070062 | 405 | static int method_set_hostname(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 | |
19070062 LP |
412 | assert(m); |
413 | assert(c); | |
414 | ||
66a4c743 LP |
415 | r = sd_bus_message_read(m, "sb", &name, &interactive); |
416 | if (r < 0) | |
ebcf1f97 | 417 | return r; |
d200735e | 418 | |
66a4c743 LP |
419 | if (isempty(name)) |
420 | name = c->data[PROP_STATIC_HOSTNAME]; | |
7640a5de | 421 | |
66a4c743 LP |
422 | if (isempty(name)) |
423 | name = "localhost"; | |
7640a5de | 424 | |
8fb49443 | 425 | if (!hostname_is_valid(name, false)) |
ebcf1f97 | 426 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid hostname '%s'", name); |
7640a5de | 427 | |
66a4c743 | 428 | if (streq_ptr(name, c->data[PROP_HOSTNAME])) |
df2d202e | 429 | return sd_bus_reply_method_return(m, NULL); |
7640a5de | 430 | |
c529695e LP |
431 | r = bus_verify_polkit_async( |
432 | m, | |
433 | CAP_SYS_ADMIN, | |
434 | "org.freedesktop.hostname1.set-hostname", | |
403ed0e5 | 435 | NULL, |
c529695e LP |
436 | interactive, |
437 | UID_INVALID, | |
438 | &c->polkit_registry, | |
439 | error); | |
66a4c743 | 440 | if (r < 0) |
ebcf1f97 | 441 | return r; |
66a4c743 LP |
442 | if (r == 0) |
443 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
7640a5de | 444 | |
66a4c743 LP |
445 | h = strdup(name); |
446 | if (!h) | |
ebcf1f97 | 447 | return -ENOMEM; |
7640a5de | 448 | |
66a4c743 LP |
449 | free(c->data[PROP_HOSTNAME]); |
450 | c->data[PROP_HOSTNAME] = h; | |
7640a5de | 451 | |
c779a442 | 452 | r = context_update_kernel_hostname(c); |
66a4c743 | 453 | if (r < 0) { |
da927ba9 | 454 | log_error_errno(r, "Failed to set host name: %m"); |
ebcf1f97 | 455 | return sd_bus_error_set_errnof(error, r, "Failed to set hostname: %s", strerror(-r)); |
66a4c743 | 456 | } |
7640a5de | 457 | |
66a4c743 | 458 | log_info("Changed host name to '%s'", strna(c->data[PROP_HOSTNAME])); |
7640a5de | 459 | |
19070062 | 460 | (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), "/org/freedesktop/hostname1", "org.freedesktop.hostname1", "Hostname", NULL); |
7640a5de | 461 | |
df2d202e | 462 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 463 | } |
7640a5de | 464 | |
19070062 | 465 | static int method_set_static_hostname(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
66a4c743 LP |
466 | Context *c = userdata; |
467 | const char *name; | |
102d8f81 | 468 | int interactive; |
66a4c743 | 469 | int r; |
7640a5de | 470 | |
19070062 LP |
471 | assert(m); |
472 | assert(c); | |
473 | ||
66a4c743 LP |
474 | r = sd_bus_message_read(m, "sb", &name, &interactive); |
475 | if (r < 0) | |
ebcf1f97 | 476 | return r; |
7640a5de | 477 | |
66a4c743 LP |
478 | if (isempty(name)) |
479 | name = NULL; | |
7640a5de | 480 | |
66a4c743 | 481 | if (streq_ptr(name, c->data[PROP_STATIC_HOSTNAME])) |
df2d202e | 482 | return sd_bus_reply_method_return(m, NULL); |
7640a5de | 483 | |
c529695e LP |
484 | r = bus_verify_polkit_async( |
485 | m, | |
486 | CAP_SYS_ADMIN, | |
487 | "org.freedesktop.hostname1.set-static-hostname", | |
403ed0e5 | 488 | NULL, |
c529695e LP |
489 | interactive, |
490 | UID_INVALID, | |
491 | &c->polkit_registry, | |
492 | error); | |
66a4c743 | 493 | if (r < 0) |
ebcf1f97 | 494 | return r; |
66a4c743 LP |
495 | if (r == 0) |
496 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
7640a5de | 497 | |
66a4c743 | 498 | if (isempty(name)) { |
a1e58e8e | 499 | c->data[PROP_STATIC_HOSTNAME] = mfree(c->data[PROP_STATIC_HOSTNAME]); |
66a4c743 LP |
500 | } else { |
501 | char *h; | |
7640a5de | 502 | |
8fb49443 | 503 | if (!hostname_is_valid(name, false)) |
ebcf1f97 | 504 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid static hostname '%s'", name); |
7640a5de | 505 | |
66a4c743 LP |
506 | h = strdup(name); |
507 | if (!h) | |
ebcf1f97 | 508 | return -ENOMEM; |
7640a5de | 509 | |
66a4c743 LP |
510 | free(c->data[PROP_STATIC_HOSTNAME]); |
511 | c->data[PROP_STATIC_HOSTNAME] = h; | |
512 | } | |
7640a5de | 513 | |
c779a442 SW |
514 | r = context_update_kernel_hostname(c); |
515 | if (r < 0) { | |
da927ba9 | 516 | log_error_errno(r, "Failed to set host name: %m"); |
c779a442 SW |
517 | return sd_bus_error_set_errnof(error, r, "Failed to set hostname: %s", strerror(-r)); |
518 | } | |
519 | ||
66a4c743 LP |
520 | r = context_write_data_static_hostname(c); |
521 | if (r < 0) { | |
da927ba9 | 522 | log_error_errno(r, "Failed to write static host name: %m"); |
ebcf1f97 | 523 | return sd_bus_error_set_errnof(error, r, "Failed to set static hostname: %s", strerror(-r)); |
66a4c743 | 524 | } |
7640a5de | 525 | |
66a4c743 | 526 | log_info("Changed static host name to '%s'", strna(c->data[PROP_STATIC_HOSTNAME])); |
7640a5de | 527 | |
19070062 | 528 | (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), "/org/freedesktop/hostname1", "org.freedesktop.hostname1", "StaticHostname", NULL); |
7640a5de | 529 | |
df2d202e | 530 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 531 | } |
7640a5de | 532 | |
19070062 | 533 | static int set_machine_info(Context *c, sd_bus_message *m, int prop, sd_bus_message_handler_t cb, sd_bus_error *error) { |
102d8f81 | 534 | int interactive; |
66a4c743 LP |
535 | const char *name; |
536 | int r; | |
537 | ||
538 | assert(c); | |
66a4c743 LP |
539 | assert(m); |
540 | ||
541 | r = sd_bus_message_read(m, "sb", &name, &interactive); | |
542 | if (r < 0) | |
ebcf1f97 | 543 | return r; |
66a4c743 LP |
544 | |
545 | if (isempty(name)) | |
546 | name = NULL; | |
547 | ||
548 | if (streq_ptr(name, c->data[prop])) | |
df2d202e | 549 | return sd_bus_reply_method_return(m, NULL); |
7640a5de | 550 | |
66a4c743 LP |
551 | /* Since the pretty hostname should always be changed at the |
552 | * same time as the static one, use the same policy action for | |
553 | * both... */ | |
554 | ||
c529695e LP |
555 | r = bus_verify_polkit_async( |
556 | m, | |
557 | CAP_SYS_ADMIN, | |
558 | prop == PROP_PRETTY_HOSTNAME ? "org.freedesktop.hostname1.set-static-hostname" : "org.freedesktop.hostname1.set-machine-info", | |
403ed0e5 | 559 | NULL, |
c529695e LP |
560 | interactive, |
561 | UID_INVALID, | |
562 | &c->polkit_registry, | |
563 | error); | |
66a4c743 | 564 | if (r < 0) |
ebcf1f97 | 565 | return r; |
66a4c743 LP |
566 | if (r == 0) |
567 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
568 | ||
569 | if (isempty(name)) { | |
a1e58e8e | 570 | c->data[prop] = mfree(c->data[prop]); |
66a4c743 LP |
571 | } else { |
572 | char *h; | |
573 | ||
574 | /* The icon name might ultimately be used as file | |
575 | * name, so better be safe than sorry */ | |
576 | ||
ae6c3cc0 | 577 | if (prop == PROP_ICON_NAME && !filename_is_valid(name)) |
ebcf1f97 | 578 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid icon name '%s'", name); |
6294aa76 | 579 | if (prop == PROP_PRETTY_HOSTNAME && string_has_cc(name, NULL)) |
ebcf1f97 | 580 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid pretty host name '%s'", name); |
66a4c743 | 581 | if (prop == PROP_CHASSIS && !valid_chassis(name)) |
ebcf1f97 | 582 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid chassis '%s'", name); |
799298d6 JG |
583 | if (prop == PROP_DEPLOYMENT && !valid_deployment(name)) |
584 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid deployment '%s'", name); | |
ce0f1493 LP |
585 | if (prop == PROP_LOCATION && string_has_cc(name, NULL)) |
586 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid location '%s'", name); | |
66a4c743 LP |
587 | |
588 | h = strdup(name); | |
589 | if (!h) | |
ebcf1f97 | 590 | return -ENOMEM; |
66a4c743 LP |
591 | |
592 | free(c->data[prop]); | |
593 | c->data[prop] = h; | |
7640a5de LP |
594 | } |
595 | ||
f200e8bb | 596 | r = context_write_data_machine_info(c); |
66a4c743 | 597 | if (r < 0) { |
da927ba9 | 598 | log_error_errno(r, "Failed to write machine info: %m"); |
ebcf1f97 | 599 | return sd_bus_error_set_errnof(error, r, "Failed to write machine info: %s", strerror(-r)); |
66a4c743 | 600 | } |
7640a5de | 601 | |
66a4c743 LP |
602 | log_info("Changed %s to '%s'", |
603 | prop == PROP_PRETTY_HOSTNAME ? "pretty host name" : | |
799298d6 | 604 | prop == PROP_DEPLOYMENT ? "deployment" : |
ce0f1493 | 605 | prop == PROP_LOCATION ? "location" : |
66a4c743 | 606 | prop == PROP_CHASSIS ? "chassis" : "icon name", strna(c->data[prop])); |
7640a5de | 607 | |
19070062 LP |
608 | (void) sd_bus_emit_properties_changed( |
609 | sd_bus_message_get_bus(m), | |
610 | "/org/freedesktop/hostname1", | |
611 | "org.freedesktop.hostname1", | |
612 | prop == PROP_PRETTY_HOSTNAME ? "PrettyHostname" : | |
613 | prop == PROP_DEPLOYMENT ? "Deployment" : | |
614 | prop == PROP_LOCATION ? "Location" : | |
615 | prop == PROP_CHASSIS ? "Chassis" : "IconName" , NULL); | |
7640a5de | 616 | |
df2d202e | 617 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 618 | } |
7640a5de | 619 | |
19070062 LP |
620 | static int method_set_pretty_hostname(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
621 | return set_machine_info(userdata, m, PROP_PRETTY_HOSTNAME, method_set_pretty_hostname, error); | |
7640a5de LP |
622 | } |
623 | ||
19070062 LP |
624 | static int method_set_icon_name(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
625 | return set_machine_info(userdata, m, PROP_ICON_NAME, method_set_icon_name, error); | |
66a4c743 LP |
626 | } |
627 | ||
19070062 LP |
628 | static int method_set_chassis(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
629 | return set_machine_info(userdata, m, PROP_CHASSIS, method_set_chassis, error); | |
66a4c743 LP |
630 | } |
631 | ||
19070062 LP |
632 | static int method_set_deployment(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
633 | return set_machine_info(userdata, m, PROP_DEPLOYMENT, method_set_deployment, error); | |
799298d6 JG |
634 | } |
635 | ||
19070062 LP |
636 | static int method_set_location(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
637 | return set_machine_info(userdata, m, PROP_LOCATION, method_set_location, error); | |
ce0f1493 LP |
638 | } |
639 | ||
66a4c743 LP |
640 | static const sd_bus_vtable hostname_vtable[] = { |
641 | SD_BUS_VTABLE_START(0), | |
caffbef6 | 642 | SD_BUS_PROPERTY("Hostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
66a4c743 LP |
643 | SD_BUS_PROPERTY("StaticHostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_STATIC_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
644 | SD_BUS_PROPERTY("PrettyHostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_PRETTY_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
645 | SD_BUS_PROPERTY("IconName", "s", property_get_icon_name, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
646 | SD_BUS_PROPERTY("Chassis", "s", property_get_chassis, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
ce0f1493 LP |
647 | SD_BUS_PROPERTY("Deployment", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_DEPLOYMENT, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
648 | SD_BUS_PROPERTY("Location", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_LOCATION, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
f426cc5d DH |
649 | SD_BUS_PROPERTY("KernelName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_NAME, SD_BUS_VTABLE_PROPERTY_CONST), |
650 | SD_BUS_PROPERTY("KernelRelease", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_RELEASE, SD_BUS_VTABLE_PROPERTY_CONST), | |
9be3455f | 651 | SD_BUS_PROPERTY("KernelVersion", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_VERSION, SD_BUS_VTABLE_PROPERTY_CONST), |
44c32988 DH |
652 | SD_BUS_PROPERTY("OperatingSystemPrettyName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_OS_PRETTY_NAME, SD_BUS_VTABLE_PROPERTY_CONST), |
653 | SD_BUS_PROPERTY("OperatingSystemCPEName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_OS_CPE_NAME, SD_BUS_VTABLE_PROPERTY_CONST), | |
adacb957 LP |
654 | SD_BUS_METHOD("SetHostname", "sb", NULL, method_set_hostname, SD_BUS_VTABLE_UNPRIVILEGED), |
655 | SD_BUS_METHOD("SetStaticHostname", "sb", NULL, method_set_static_hostname, SD_BUS_VTABLE_UNPRIVILEGED), | |
656 | SD_BUS_METHOD("SetPrettyHostname", "sb", NULL, method_set_pretty_hostname, SD_BUS_VTABLE_UNPRIVILEGED), | |
657 | SD_BUS_METHOD("SetIconName", "sb", NULL, method_set_icon_name, SD_BUS_VTABLE_UNPRIVILEGED), | |
658 | SD_BUS_METHOD("SetChassis", "sb", NULL, method_set_chassis, SD_BUS_VTABLE_UNPRIVILEGED), | |
799298d6 | 659 | SD_BUS_METHOD("SetDeployment", "sb", NULL, method_set_deployment, SD_BUS_VTABLE_UNPRIVILEGED), |
ce0f1493 | 660 | SD_BUS_METHOD("SetLocation", "sb", NULL, method_set_location, SD_BUS_VTABLE_UNPRIVILEGED), |
66a4c743 LP |
661 | SD_BUS_VTABLE_END, |
662 | }; | |
663 | ||
664 | static int connect_bus(Context *c, sd_event *event, sd_bus **_bus) { | |
03976f7b | 665 | _cleanup_bus_flush_close_unref_ sd_bus *bus = NULL; |
7640a5de LP |
666 | int r; |
667 | ||
66a4c743 LP |
668 | assert(c); |
669 | assert(event); | |
d0baa06f LP |
670 | assert(_bus); |
671 | ||
76b54375 | 672 | r = sd_bus_default_system(&bus); |
23bbb0de MS |
673 | if (r < 0) |
674 | return log_error_errno(r, "Failed to get system bus connection: %m"); | |
d0baa06f | 675 | |
19befb2d | 676 | r = sd_bus_add_object_vtable(bus, NULL, "/org/freedesktop/hostname1", "org.freedesktop.hostname1", hostname_vtable, c); |
23bbb0de MS |
677 | if (r < 0) |
678 | return log_error_errno(r, "Failed to register object: %m"); | |
d0baa06f | 679 | |
5bb658a1 | 680 | r = sd_bus_request_name(bus, "org.freedesktop.hostname1", 0); |
23bbb0de MS |
681 | if (r < 0) |
682 | return log_error_errno(r, "Failed to register name: %m"); | |
add10b5a | 683 | |
66a4c743 | 684 | r = sd_bus_attach_event(bus, event, 0); |
23bbb0de MS |
685 | if (r < 0) |
686 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
d0baa06f | 687 | |
66a4c743 LP |
688 | *_bus = bus; |
689 | bus = NULL; | |
d0baa06f | 690 | |
66a4c743 | 691 | return 0; |
d0baa06f LP |
692 | } |
693 | ||
694 | int main(int argc, char *argv[]) { | |
66a4c743 | 695 | Context context = {}; |
66a4c743 | 696 | _cleanup_event_unref_ sd_event *event = NULL; |
03976f7b | 697 | _cleanup_bus_flush_close_unref_ sd_bus *bus = NULL; |
d0baa06f | 698 | int r; |
d0baa06f | 699 | |
7640a5de LP |
700 | log_set_target(LOG_TARGET_AUTO); |
701 | log_parse_environment(); | |
702 | log_open(); | |
703 | ||
4c12626c | 704 | umask(0022); |
cc56fafe | 705 | mac_selinux_init("/etc"); |
4c12626c | 706 | |
7640a5de LP |
707 | if (argc != 1) { |
708 | log_error("This program takes no arguments."); | |
709 | r = -EINVAL; | |
710 | goto finish; | |
711 | } | |
712 | ||
afc6adb5 | 713 | r = sd_event_default(&event); |
7640a5de | 714 | if (r < 0) { |
da927ba9 | 715 | log_error_errno(r, "Failed to allocate event loop: %m"); |
7640a5de LP |
716 | goto finish; |
717 | } | |
718 | ||
cde93897 LP |
719 | sd_event_set_watchdog(event, true); |
720 | ||
66a4c743 | 721 | r = connect_bus(&context, event, &bus); |
d0baa06f | 722 | if (r < 0) |
7640a5de | 723 | goto finish; |
7640a5de | 724 | |
66a4c743 LP |
725 | r = context_read_data(&context); |
726 | if (r < 0) { | |
da927ba9 | 727 | log_error_errno(r, "Failed to read hostname and machine information: %m"); |
66a4c743 LP |
728 | goto finish; |
729 | } | |
ad740100 | 730 | |
37224a5f | 731 | r = bus_event_loop_with_idle(event, bus, "org.freedesktop.hostname1", DEFAULT_EXIT_USEC, NULL, NULL); |
66a4c743 | 732 | if (r < 0) { |
da927ba9 | 733 | log_error_errno(r, "Failed to run event loop: %m"); |
66a4c743 | 734 | goto finish; |
ad740100 | 735 | } |
7640a5de | 736 | |
7640a5de | 737 | finish: |
36e34057 | 738 | context_free(&context); |
7640a5de | 739 | |
7640a5de LP |
740 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
741 | } |