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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
7640a5de LP |
2 | /*** |
3 | This file is part of systemd. | |
4 | ||
41550d40 | 5 | Copyright 2011 Lennart Poettering |
7640a5de LP |
6 | |
7 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
8 | under the terms of the GNU Lesser General Public License as published by |
9 | the Free Software Foundation; either version 2.1 of the License, or | |
7640a5de LP |
10 | (at your option) any later version. |
11 | ||
12 | systemd is distributed in the hope that it will be useful, but | |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 15 | Lesser General Public License for more details. |
7640a5de | 16 | |
5430f7f2 | 17 | You should have received a copy of the GNU Lesser General Public License |
7640a5de LP |
18 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
19 | ***/ | |
20 | ||
7640a5de LP |
21 | #include <errno.h> |
22 | #include <string.h> | |
f426cc5d | 23 | #include <sys/utsname.h> |
cf0fbc49 | 24 | #include <unistd.h> |
7640a5de | 25 | |
b5efdb8a | 26 | #include "alloc-util.h" |
6bedfcbb | 27 | #include "bus-util.h" |
ad740100 | 28 | #include "def.h" |
4d1a6904 | 29 | #include "env-util.h" |
6bedfcbb | 30 | #include "fileio-label.h" |
958b66ea | 31 | #include "hostname-util.h" |
6bedfcbb | 32 | #include "parse-util.h" |
bb15fafe | 33 | #include "path-util.h" |
6bedfcbb LP |
34 | #include "selinux-util.h" |
35 | #include "strv.h" | |
ee104e11 | 36 | #include "user-util.h" |
6bedfcbb LP |
37 | #include "util.h" |
38 | #include "virt.h" | |
91f9dcaf | 39 | |
799298d6 JG |
40 | #define VALID_DEPLOYMENT_CHARS (DIGITS LETTERS "-.:") |
41 | ||
7640a5de LP |
42 | enum { |
43 | PROP_HOSTNAME, | |
44 | PROP_STATIC_HOSTNAME, | |
45 | PROP_PRETTY_HOSTNAME, | |
46 | PROP_ICON_NAME, | |
7871c8e9 | 47 | PROP_CHASSIS, |
799298d6 | 48 | PROP_DEPLOYMENT, |
ce0f1493 | 49 | PROP_LOCATION, |
f426cc5d DH |
50 | PROP_KERNEL_NAME, |
51 | PROP_KERNEL_RELEASE, | |
9be3455f | 52 | PROP_KERNEL_VERSION, |
44c32988 DH |
53 | PROP_OS_PRETTY_NAME, |
54 | PROP_OS_CPE_NAME, | |
7640a5de LP |
55 | _PROP_MAX |
56 | }; | |
57 | ||
66a4c743 LP |
58 | typedef struct Context { |
59 | char *data[_PROP_MAX]; | |
60 | Hashmap *polkit_registry; | |
61 | } Context; | |
ad740100 | 62 | |
66a4c743 | 63 | static void context_reset(Context *c) { |
7640a5de LP |
64 | int p; |
65 | ||
66a4c743 LP |
66 | assert(c); |
67 | ||
1f6b4113 | 68 | for (p = 0; p < _PROP_MAX; p++) |
a1e58e8e | 69 | c->data[p] = mfree(c->data[p]); |
7640a5de LP |
70 | } |
71 | ||
36e34057 | 72 | static void context_free(Context *c) { |
66a4c743 LP |
73 | assert(c); |
74 | ||
75 | context_reset(c); | |
36e34057 | 76 | bus_verify_polkit_async_registry_free(c->polkit_registry); |
66a4c743 LP |
77 | } |
78 | ||
79 | static int context_read_data(Context *c) { | |
7640a5de | 80 | int r; |
f426cc5d | 81 | struct utsname u; |
7640a5de | 82 | |
66a4c743 LP |
83 | assert(c); |
84 | ||
85 | context_reset(c); | |
7640a5de | 86 | |
f426cc5d DH |
87 | assert_se(uname(&u) >= 0); |
88 | c->data[PROP_KERNEL_NAME] = strdup(u.sysname); | |
89 | c->data[PROP_KERNEL_RELEASE] = strdup(u.release); | |
9be3455f DH |
90 | c->data[PROP_KERNEL_VERSION] = strdup(u.version); |
91 | if (!c->data[PROP_KERNEL_NAME] || !c->data[PROP_KERNEL_RELEASE] || | |
92 | !c->data[PROP_KERNEL_VERSION]) | |
f426cc5d DH |
93 | return -ENOMEM; |
94 | ||
66a4c743 LP |
95 | c->data[PROP_HOSTNAME] = gethostname_malloc(); |
96 | if (!c->data[PROP_HOSTNAME]) | |
7640a5de LP |
97 | return -ENOMEM; |
98 | ||
f35cb39e | 99 | r = read_etc_hostname(NULL, &c->data[PROP_STATIC_HOSTNAME]); |
7640a5de LP |
100 | if (r < 0 && r != -ENOENT) |
101 | return r; | |
102 | ||
103 | r = parse_env_file("/etc/machine-info", NEWLINE, | |
66a4c743 LP |
104 | "PRETTY_HOSTNAME", &c->data[PROP_PRETTY_HOSTNAME], |
105 | "ICON_NAME", &c->data[PROP_ICON_NAME], | |
106 | "CHASSIS", &c->data[PROP_CHASSIS], | |
799298d6 | 107 | "DEPLOYMENT", &c->data[PROP_DEPLOYMENT], |
ce0f1493 | 108 | "LOCATION", &c->data[PROP_LOCATION], |
7640a5de LP |
109 | NULL); |
110 | if (r < 0 && r != -ENOENT) | |
111 | return r; | |
112 | ||
44c32988 DH |
113 | r = parse_env_file("/etc/os-release", NEWLINE, |
114 | "PRETTY_NAME", &c->data[PROP_OS_PRETTY_NAME], | |
115 | "CPE_NAME", &c->data[PROP_OS_CPE_NAME], | |
116 | NULL); | |
ece174c5 | 117 | if (r == -ENOENT) |
5ae4d543 LP |
118 | r = parse_env_file("/usr/lib/os-release", NEWLINE, |
119 | "PRETTY_NAME", &c->data[PROP_OS_PRETTY_NAME], | |
120 | "CPE_NAME", &c->data[PROP_OS_CPE_NAME], | |
121 | NULL); | |
5ae4d543 | 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" | |
34b52450 | 137 | "convertible\0" |
7871c8e9 LP |
138 | "server\0" |
139 | "tablet\0" | |
c49e59c1 | 140 | "handset\0" |
25fa306e LP |
141 | "watch\0" |
142 | "embedded\0", | |
7871c8e9 LP |
143 | chassis); |
144 | } | |
145 | ||
799298d6 JG |
146 | static bool valid_deployment(const char *deployment) { |
147 | assert(deployment); | |
148 | ||
c2142cf1 | 149 | return in_charset(deployment, VALID_DEPLOYMENT_CHARS); |
799298d6 JG |
150 | } |
151 | ||
7871c8e9 | 152 | static const char* fallback_chassis(void) { |
7640a5de LP |
153 | char *type; |
154 | unsigned t; | |
219bfe38 | 155 | int v, r; |
7871c8e9 | 156 | |
75f86906 | 157 | v = detect_virtualization(); |
75f86906 | 158 | if (VIRTUALIZATION_IS_VM(v)) |
7871c8e9 | 159 | return "vm"; |
75f86906 | 160 | if (VIRTUALIZATION_IS_CONTAINER(v)) |
7871c8e9 LP |
161 | return "container"; |
162 | ||
219bfe38 | 163 | r = read_one_line_file("/sys/class/dmi/id/chassis_type", &type); |
7871c8e9 | 164 | if (r < 0) |
219bfe38 | 165 | goto try_acpi; |
7871c8e9 LP |
166 | |
167 | r = safe_atou(type, &t); | |
168 | free(type); | |
169 | if (r < 0) | |
219bfe38 | 170 | goto try_acpi; |
7871c8e9 | 171 | |
219bfe38 LP |
172 | /* We only list the really obvious cases here. The DMI data is unreliable enough, so let's not do any |
173 | additional guesswork on top of that. | |
174 | ||
175 | See the SMBIOS Specification 3.0 section 7.4.1 for details about the values listed here: | |
176 | ||
177 | https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.0.0.pdf | |
7871c8e9 LP |
178 | */ |
179 | ||
219bfe38 | 180 | switch (t) { |
7871c8e9 | 181 | |
219bfe38 LP |
182 | case 0x3: /* Desktop */ |
183 | case 0x4: /* Low Profile Desktop */ | |
184 | case 0x6: /* Mini Tower */ | |
185 | case 0x7: /* Tower */ | |
7871c8e9 LP |
186 | return "desktop"; |
187 | ||
219bfe38 LP |
188 | case 0x8: /* Portable */ |
189 | case 0x9: /* Laptop */ | |
190 | case 0xA: /* Notebook */ | |
191 | case 0xE: /* Sub Notebook */ | |
7871c8e9 | 192 | return "laptop"; |
7640a5de | 193 | |
219bfe38 LP |
194 | case 0xB: /* Hand Held */ |
195 | return "handset"; | |
196 | ||
197 | case 0x11: /* Main Server Chassis */ | |
198 | case 0x1C: /* Blade */ | |
199 | case 0x1D: /* Blade Enclosure */ | |
7871c8e9 | 200 | return "server"; |
7640a5de | 201 | |
219bfe38 | 202 | case 0x1E: /* Tablet */ |
7871c8e9 | 203 | return "tablet"; |
b70af833 DH |
204 | |
205 | case 0x1F: /* Convertible */ | |
b4227dbb | 206 | case 0x20: /* Detachable */ |
b70af833 | 207 | return "convertible"; |
7871c8e9 LP |
208 | } |
209 | ||
219bfe38 LP |
210 | try_acpi: |
211 | r = read_one_line_file("/sys/firmware/acpi/pm_profile", &type); | |
7640a5de LP |
212 | if (r < 0) |
213 | return NULL; | |
214 | ||
215 | r = safe_atou(type, &t); | |
216 | free(type); | |
7640a5de LP |
217 | if (r < 0) |
218 | return NULL; | |
219 | ||
219bfe38 LP |
220 | /* We only list the really obvious cases here as the ACPI data is not really super reliable. |
221 | * | |
222 | * See the ACPI 5.0 Spec Section 5.2.9.1 for details: | |
223 | * | |
224 | * http://www.acpi.info/DOWNLOADS/ACPIspec50.pdf | |
41550d40 | 225 | */ |
7640a5de | 226 | |
219bfe38 | 227 | switch(t) { |
7640a5de | 228 | |
219bfe38 LP |
229 | case 1: /* Desktop */ |
230 | case 3: /* Workstation */ | |
231 | case 6: /* Appliance PC */ | |
7871c8e9 | 232 | return "desktop"; |
7640a5de | 233 | |
219bfe38 | 234 | case 2: /* Mobile */ |
7871c8e9 LP |
235 | return "laptop"; |
236 | ||
219bfe38 LP |
237 | case 4: /* Enterprise Server */ |
238 | case 5: /* SOHO Server */ | |
239 | case 7: /* Performance Server */ | |
7871c8e9 | 240 | return "server"; |
f3f4f008 | 241 | |
219bfe38 | 242 | case 8: /* Tablet */ |
f3f4f008 | 243 | return "tablet"; |
7640a5de LP |
244 | } |
245 | ||
7640a5de LP |
246 | return NULL; |
247 | } | |
248 | ||
66a4c743 | 249 | static char* context_fallback_icon_name(Context *c) { |
7871c8e9 LP |
250 | const char *chassis; |
251 | ||
66a4c743 LP |
252 | assert(c); |
253 | ||
254 | if (!isempty(c->data[PROP_CHASSIS])) | |
255 | return strappend("computer-", c->data[PROP_CHASSIS]); | |
7871c8e9 LP |
256 | |
257 | chassis = fallback_chassis(); | |
258 | if (chassis) | |
259 | return strappend("computer-", chassis); | |
260 | ||
261 | return strdup("computer"); | |
262 | } | |
263 | ||
799298d6 | 264 | |
c779a442 | 265 | static bool hostname_is_useful(const char *hn) { |
fecc80c1 | 266 | return !isempty(hn) && !is_localhost(hn); |
c779a442 SW |
267 | } |
268 | ||
269 | static int context_update_kernel_hostname(Context *c) { | |
270 | const char *static_hn; | |
7640a5de LP |
271 | const char *hn; |
272 | ||
66a4c743 LP |
273 | assert(c); |
274 | ||
c779a442 SW |
275 | static_hn = c->data[PROP_STATIC_HOSTNAME]; |
276 | ||
277 | /* /etc/hostname with something other than "localhost" | |
278 | * has the highest preference ... */ | |
279 | if (hostname_is_useful(static_hn)) | |
280 | hn = static_hn; | |
281 | ||
f7340ab2 | 282 | /* ... the transient host name, (ie: DHCP) comes next ... */ |
c779a442 | 283 | else if (!isempty(c->data[PROP_HOSTNAME])) |
66a4c743 | 284 | hn = c->data[PROP_HOSTNAME]; |
7640a5de | 285 | |
c779a442 SW |
286 | /* ... fallback to static "localhost.*" ignored above ... */ |
287 | else if (!isempty(static_hn)) | |
288 | hn = static_hn; | |
289 | ||
290 | /* ... and the ultimate fallback */ | |
291 | else | |
8146c32b | 292 | hn = FALLBACK_HOSTNAME; |
c779a442 | 293 | |
605f81a8 | 294 | if (sethostname_idempotent(hn) < 0) |
7640a5de LP |
295 | return -errno; |
296 | ||
297 | return 0; | |
298 | } | |
299 | ||
66a4c743 | 300 | static int context_write_data_static_hostname(Context *c) { |
7640a5de | 301 | |
66a4c743 LP |
302 | assert(c); |
303 | ||
304 | if (isempty(c->data[PROP_STATIC_HOSTNAME])) { | |
7640a5de LP |
305 | |
306 | if (unlink("/etc/hostname") < 0) | |
307 | return errno == ENOENT ? 0 : -errno; | |
308 | ||
309 | return 0; | |
310 | } | |
66a4c743 | 311 | return write_string_file_atomic_label("/etc/hostname", c->data[PROP_STATIC_HOSTNAME]); |
7640a5de LP |
312 | } |
313 | ||
f200e8bb | 314 | static int context_write_data_machine_info(Context *c) { |
4f34ed54 | 315 | |
7640a5de LP |
316 | static const char * const name[_PROP_MAX] = { |
317 | [PROP_PRETTY_HOSTNAME] = "PRETTY_HOSTNAME", | |
7871c8e9 | 318 | [PROP_ICON_NAME] = "ICON_NAME", |
799298d6 JG |
319 | [PROP_CHASSIS] = "CHASSIS", |
320 | [PROP_DEPLOYMENT] = "DEPLOYMENT", | |
ce0f1493 | 321 | [PROP_LOCATION] = "LOCATION", |
7640a5de LP |
322 | }; |
323 | ||
0ccad099 | 324 | _cleanup_strv_free_ char **l = NULL; |
7640a5de LP |
325 | int r, p; |
326 | ||
66a4c743 LP |
327 | assert(c); |
328 | ||
717603e3 | 329 | r = load_env_file(NULL, "/etc/machine-info", NULL, &l); |
7640a5de LP |
330 | if (r < 0 && r != -ENOENT) |
331 | return r; | |
332 | ||
ce0f1493 | 333 | for (p = PROP_PRETTY_HOSTNAME; p <= PROP_LOCATION; p++) { |
d77ab3f7 LP |
334 | _cleanup_free_ char *t = NULL; |
335 | char **u; | |
7640a5de LP |
336 | |
337 | assert(name[p]); | |
338 | ||
66a4c743 | 339 | if (isempty(c->data[p])) { |
f8440af5 | 340 | strv_env_unset(l, name[p]); |
7640a5de LP |
341 | continue; |
342 | } | |
343 | ||
605405c6 | 344 | t = strjoin(name[p], "=", c->data[p]); |
d77ab3f7 | 345 | if (!t) |
7640a5de | 346 | return -ENOMEM; |
7640a5de LP |
347 | |
348 | u = strv_env_set(l, t); | |
7640a5de LP |
349 | if (!u) |
350 | return -ENOMEM; | |
0ccad099 LP |
351 | |
352 | strv_free(l); | |
7640a5de LP |
353 | l = u; |
354 | } | |
355 | ||
356 | if (strv_isempty(l)) { | |
7640a5de LP |
357 | if (unlink("/etc/machine-info") < 0) |
358 | return errno == ENOENT ? 0 : -errno; | |
359 | ||
360 | return 0; | |
361 | } | |
362 | ||
0ccad099 | 363 | return write_env_file_label("/etc/machine-info", l); |
7640a5de LP |
364 | } |
365 | ||
66a4c743 LP |
366 | static int property_get_icon_name( |
367 | sd_bus *bus, | |
368 | const char *path, | |
369 | const char *interface, | |
370 | const char *property, | |
371 | sd_bus_message *reply, | |
ebcf1f97 LP |
372 | void *userdata, |
373 | sd_bus_error *error) { | |
7640a5de | 374 | |
66a4c743 LP |
375 | _cleanup_free_ char *n = NULL; |
376 | Context *c = userdata; | |
377 | const char *name; | |
7640a5de | 378 | |
66a4c743 LP |
379 | if (isempty(c->data[PROP_ICON_NAME])) |
380 | name = n = context_fallback_icon_name(c); | |
7640a5de | 381 | else |
66a4c743 LP |
382 | name = c->data[PROP_ICON_NAME]; |
383 | ||
384 | if (!name) | |
385 | return -ENOMEM; | |
7640a5de | 386 | |
ebcf1f97 | 387 | return sd_bus_message_append(reply, "s", name); |
7640a5de LP |
388 | } |
389 | ||
66a4c743 LP |
390 | static int property_get_chassis( |
391 | sd_bus *bus, | |
392 | const char *path, | |
393 | const char *interface, | |
394 | const char *property, | |
395 | sd_bus_message *reply, | |
ebcf1f97 LP |
396 | void *userdata, |
397 | sd_bus_error *error) { | |
7871c8e9 | 398 | |
66a4c743 LP |
399 | Context *c = userdata; |
400 | const char *name; | |
7871c8e9 | 401 | |
66a4c743 | 402 | if (isempty(c->data[PROP_CHASSIS])) |
7871c8e9 LP |
403 | name = fallback_chassis(); |
404 | else | |
66a4c743 | 405 | name = c->data[PROP_CHASSIS]; |
7871c8e9 | 406 | |
ebcf1f97 | 407 | return sd_bus_message_append(reply, "s", name); |
7871c8e9 LP |
408 | } |
409 | ||
19070062 | 410 | static int method_set_hostname(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
66a4c743 LP |
411 | Context *c = userdata; |
412 | const char *name; | |
102d8f81 | 413 | int interactive; |
66a4c743 LP |
414 | char *h; |
415 | int r; | |
d200735e | 416 | |
19070062 LP |
417 | assert(m); |
418 | assert(c); | |
419 | ||
66a4c743 LP |
420 | r = sd_bus_message_read(m, "sb", &name, &interactive); |
421 | if (r < 0) | |
ebcf1f97 | 422 | return r; |
d200735e | 423 | |
66a4c743 LP |
424 | if (isempty(name)) |
425 | name = c->data[PROP_STATIC_HOSTNAME]; | |
7640a5de | 426 | |
66a4c743 | 427 | if (isempty(name)) |
8146c32b | 428 | name = FALLBACK_HOSTNAME; |
7640a5de | 429 | |
8fb49443 | 430 | if (!hostname_is_valid(name, false)) |
ebcf1f97 | 431 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid hostname '%s'", name); |
7640a5de | 432 | |
66a4c743 | 433 | if (streq_ptr(name, c->data[PROP_HOSTNAME])) |
df2d202e | 434 | return sd_bus_reply_method_return(m, NULL); |
7640a5de | 435 | |
c529695e LP |
436 | r = bus_verify_polkit_async( |
437 | m, | |
438 | CAP_SYS_ADMIN, | |
439 | "org.freedesktop.hostname1.set-hostname", | |
403ed0e5 | 440 | NULL, |
c529695e LP |
441 | interactive, |
442 | UID_INVALID, | |
443 | &c->polkit_registry, | |
444 | error); | |
66a4c743 | 445 | if (r < 0) |
ebcf1f97 | 446 | return r; |
66a4c743 LP |
447 | if (r == 0) |
448 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
7640a5de | 449 | |
66a4c743 LP |
450 | h = strdup(name); |
451 | if (!h) | |
ebcf1f97 | 452 | return -ENOMEM; |
7640a5de | 453 | |
66a4c743 LP |
454 | free(c->data[PROP_HOSTNAME]); |
455 | c->data[PROP_HOSTNAME] = h; | |
7640a5de | 456 | |
c779a442 | 457 | r = context_update_kernel_hostname(c); |
66a4c743 | 458 | if (r < 0) { |
da927ba9 | 459 | log_error_errno(r, "Failed to set host name: %m"); |
1b4cd646 | 460 | return sd_bus_error_set_errnof(error, r, "Failed to set hostname: %m"); |
66a4c743 | 461 | } |
7640a5de | 462 | |
66a4c743 | 463 | log_info("Changed host name to '%s'", strna(c->data[PROP_HOSTNAME])); |
7640a5de | 464 | |
19070062 | 465 | (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), "/org/freedesktop/hostname1", "org.freedesktop.hostname1", "Hostname", NULL); |
7640a5de | 466 | |
df2d202e | 467 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 468 | } |
7640a5de | 469 | |
19070062 | 470 | static int method_set_static_hostname(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
66a4c743 LP |
471 | Context *c = userdata; |
472 | const char *name; | |
102d8f81 | 473 | int interactive; |
66a4c743 | 474 | int r; |
7640a5de | 475 | |
19070062 LP |
476 | assert(m); |
477 | assert(c); | |
478 | ||
66a4c743 LP |
479 | r = sd_bus_message_read(m, "sb", &name, &interactive); |
480 | if (r < 0) | |
ebcf1f97 | 481 | return r; |
7640a5de | 482 | |
3c6f7c34 | 483 | name = empty_to_null(name); |
7640a5de | 484 | |
66a4c743 | 485 | if (streq_ptr(name, c->data[PROP_STATIC_HOSTNAME])) |
df2d202e | 486 | return sd_bus_reply_method_return(m, NULL); |
7640a5de | 487 | |
c529695e LP |
488 | r = bus_verify_polkit_async( |
489 | m, | |
490 | CAP_SYS_ADMIN, | |
491 | "org.freedesktop.hostname1.set-static-hostname", | |
403ed0e5 | 492 | NULL, |
c529695e LP |
493 | interactive, |
494 | UID_INVALID, | |
495 | &c->polkit_registry, | |
496 | error); | |
66a4c743 | 497 | if (r < 0) |
ebcf1f97 | 498 | return r; |
66a4c743 LP |
499 | if (r == 0) |
500 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
7640a5de | 501 | |
3c6f7c34 | 502 | if (isempty(name)) |
a1e58e8e | 503 | c->data[PROP_STATIC_HOSTNAME] = mfree(c->data[PROP_STATIC_HOSTNAME]); |
3c6f7c34 | 504 | else { |
66a4c743 | 505 | char *h; |
7640a5de | 506 | |
8fb49443 | 507 | if (!hostname_is_valid(name, false)) |
ebcf1f97 | 508 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid static hostname '%s'", name); |
7640a5de | 509 | |
66a4c743 LP |
510 | h = strdup(name); |
511 | if (!h) | |
ebcf1f97 | 512 | return -ENOMEM; |
7640a5de | 513 | |
66a4c743 LP |
514 | free(c->data[PROP_STATIC_HOSTNAME]); |
515 | c->data[PROP_STATIC_HOSTNAME] = h; | |
516 | } | |
7640a5de | 517 | |
c779a442 SW |
518 | r = context_update_kernel_hostname(c); |
519 | if (r < 0) { | |
da927ba9 | 520 | log_error_errno(r, "Failed to set host name: %m"); |
1b4cd646 | 521 | return sd_bus_error_set_errnof(error, r, "Failed to set hostname: %m"); |
c779a442 SW |
522 | } |
523 | ||
66a4c743 LP |
524 | r = context_write_data_static_hostname(c); |
525 | if (r < 0) { | |
da927ba9 | 526 | log_error_errno(r, "Failed to write static host name: %m"); |
1b4cd646 | 527 | return sd_bus_error_set_errnof(error, r, "Failed to set static hostname: %m"); |
66a4c743 | 528 | } |
7640a5de | 529 | |
66a4c743 | 530 | log_info("Changed static host name to '%s'", strna(c->data[PROP_STATIC_HOSTNAME])); |
7640a5de | 531 | |
19070062 | 532 | (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), "/org/freedesktop/hostname1", "org.freedesktop.hostname1", "StaticHostname", NULL); |
7640a5de | 533 | |
df2d202e | 534 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 535 | } |
7640a5de | 536 | |
19070062 | 537 | static int set_machine_info(Context *c, sd_bus_message *m, int prop, sd_bus_message_handler_t cb, sd_bus_error *error) { |
102d8f81 | 538 | int interactive; |
66a4c743 LP |
539 | const char *name; |
540 | int r; | |
541 | ||
542 | assert(c); | |
66a4c743 LP |
543 | assert(m); |
544 | ||
545 | r = sd_bus_message_read(m, "sb", &name, &interactive); | |
546 | if (r < 0) | |
ebcf1f97 | 547 | return r; |
66a4c743 | 548 | |
3c6f7c34 | 549 | name = empty_to_null(name); |
66a4c743 LP |
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 | ||
3c6f7c34 | 572 | if (isempty(name)) |
a1e58e8e | 573 | c->data[prop] = mfree(c->data[prop]); |
3c6f7c34 | 574 | else { |
66a4c743 LP |
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"); |
1b4cd646 | 602 | return sd_bus_error_set_errnof(error, r, "Failed to write machine info: %m"); |
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) { | |
4afd3348 | 668 | _cleanup_(sd_bus_flush_close_unrefp) 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 | |
0c0b9306 | 683 | r = sd_bus_request_name_async(bus, NULL, "org.freedesktop.hostname1", 0, NULL, NULL); |
23bbb0de | 684 | if (r < 0) |
0c0b9306 | 685 | return log_error_errno(r, "Failed to request 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 | |
1cc6c93a | 691 | *_bus = TAKE_PTR(bus); |
d0baa06f | 692 | |
66a4c743 | 693 | return 0; |
d0baa06f LP |
694 | } |
695 | ||
696 | int main(int argc, char *argv[]) { | |
66a4c743 | 697 | Context context = {}; |
4afd3348 LP |
698 | _cleanup_(sd_event_unrefp) sd_event *event = NULL; |
699 | _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; | |
d0baa06f | 700 | int r; |
d0baa06f | 701 | |
7640a5de LP |
702 | log_set_target(LOG_TARGET_AUTO); |
703 | log_parse_environment(); | |
704 | log_open(); | |
705 | ||
4c12626c | 706 | umask(0022); |
c3dacc8b | 707 | mac_selinux_init(); |
4c12626c | 708 | |
7640a5de LP |
709 | if (argc != 1) { |
710 | log_error("This program takes no arguments."); | |
711 | r = -EINVAL; | |
712 | goto finish; | |
713 | } | |
714 | ||
afc6adb5 | 715 | r = sd_event_default(&event); |
7640a5de | 716 | if (r < 0) { |
da927ba9 | 717 | log_error_errno(r, "Failed to allocate event loop: %m"); |
7640a5de LP |
718 | goto finish; |
719 | } | |
720 | ||
cde93897 LP |
721 | sd_event_set_watchdog(event, true); |
722 | ||
66a4c743 | 723 | r = connect_bus(&context, event, &bus); |
d0baa06f | 724 | if (r < 0) |
7640a5de | 725 | goto finish; |
7640a5de | 726 | |
66a4c743 LP |
727 | r = context_read_data(&context); |
728 | if (r < 0) { | |
da927ba9 | 729 | log_error_errno(r, "Failed to read hostname and machine information: %m"); |
66a4c743 LP |
730 | goto finish; |
731 | } | |
ad740100 | 732 | |
37224a5f | 733 | r = bus_event_loop_with_idle(event, bus, "org.freedesktop.hostname1", DEFAULT_EXIT_USEC, NULL, NULL); |
66a4c743 | 734 | if (r < 0) { |
da927ba9 | 735 | log_error_errno(r, "Failed to run event loop: %m"); |
66a4c743 | 736 | goto finish; |
ad740100 | 737 | } |
7640a5de | 738 | |
7640a5de | 739 | finish: |
36e34057 | 740 | context_free(&context); |
7640a5de | 741 | |
7640a5de LP |
742 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
743 | } |