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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> |
def9a7aa | 26 | #include <sys/capability.h> |
7640a5de LP |
27 | |
28 | #include "util.h" | |
29 | #include "strv.h" | |
ad740100 | 30 | #include "def.h" |
b52aae1d | 31 | #include "virt.h" |
4d1a6904 | 32 | #include "env-util.h" |
a5c32cff HH |
33 | #include "fileio-label.h" |
34 | #include "label.h" | |
66a4c743 LP |
35 | #include "bus-util.h" |
36 | #include "event-util.h" | |
91f9dcaf | 37 | |
799298d6 JG |
38 | #define VALID_DEPLOYMENT_CHARS (DIGITS LETTERS "-.:") |
39 | ||
7640a5de LP |
40 | enum { |
41 | PROP_HOSTNAME, | |
42 | PROP_STATIC_HOSTNAME, | |
43 | PROP_PRETTY_HOSTNAME, | |
44 | PROP_ICON_NAME, | |
7871c8e9 | 45 | PROP_CHASSIS, |
799298d6 | 46 | PROP_DEPLOYMENT, |
ce0f1493 | 47 | PROP_LOCATION, |
f426cc5d DH |
48 | PROP_KERNEL_NAME, |
49 | PROP_KERNEL_RELEASE, | |
9be3455f | 50 | PROP_KERNEL_VERSION, |
44c32988 DH |
51 | PROP_OS_PRETTY_NAME, |
52 | PROP_OS_CPE_NAME, | |
7640a5de LP |
53 | _PROP_MAX |
54 | }; | |
55 | ||
66a4c743 LP |
56 | typedef struct Context { |
57 | char *data[_PROP_MAX]; | |
58 | Hashmap *polkit_registry; | |
59 | } Context; | |
ad740100 | 60 | |
66a4c743 | 61 | static void context_reset(Context *c) { |
7640a5de LP |
62 | int p; |
63 | ||
66a4c743 LP |
64 | assert(c); |
65 | ||
7640a5de | 66 | for (p = 0; p < _PROP_MAX; p++) { |
66a4c743 LP |
67 | free(c->data[p]); |
68 | c->data[p] = NULL; | |
7640a5de LP |
69 | } |
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 | ||
66a4c743 | 99 | r = read_one_line_file("/etc/hostname", &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); | |
5ae4d543 LP |
117 | if (r == -ENOENT) { |
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); | |
122 | } | |
123 | ||
44c32988 DH |
124 | if (r < 0 && r != -ENOENT) |
125 | return r; | |
126 | ||
7640a5de LP |
127 | return 0; |
128 | } | |
129 | ||
7871c8e9 | 130 | static bool valid_chassis(const char *chassis) { |
7871c8e9 LP |
131 | assert(chassis); |
132 | ||
133 | return nulstr_contains( | |
134 | "vm\0" | |
135 | "container\0" | |
136 | "desktop\0" | |
137 | "laptop\0" | |
138 | "server\0" | |
139 | "tablet\0" | |
c49e59c1 LP |
140 | "handset\0" |
141 | "watch\0", | |
7871c8e9 LP |
142 | chassis); |
143 | } | |
144 | ||
799298d6 JG |
145 | static bool valid_deployment(const char *deployment) { |
146 | assert(deployment); | |
147 | ||
c2142cf1 | 148 | return in_charset(deployment, VALID_DEPLOYMENT_CHARS); |
799298d6 JG |
149 | } |
150 | ||
7871c8e9 | 151 | static const char* fallback_chassis(void) { |
7640a5de LP |
152 | int r; |
153 | char *type; | |
154 | unsigned t; | |
248fab74 | 155 | int v; |
7871c8e9 LP |
156 | |
157 | v = detect_virtualization(NULL); | |
158 | ||
159 | if (v == VIRTUALIZATION_VM) | |
160 | return "vm"; | |
161 | if (v == VIRTUALIZATION_CONTAINER) | |
162 | return "container"; | |
163 | ||
164 | r = read_one_line_file("/sys/firmware/acpi/pm_profile", &type); | |
165 | if (r < 0) | |
166 | goto try_dmi; | |
167 | ||
168 | r = safe_atou(type, &t); | |
169 | free(type); | |
170 | if (r < 0) | |
171 | goto try_dmi; | |
172 | ||
173 | /* We only list the really obvious cases here as the ACPI data | |
174 | * is not really super reliable. | |
175 | * | |
176 | * See the ACPI 5.0 Spec Section 5.2.9.1 for details: | |
177 | * | |
178 | * http://www.acpi.info/DOWNLOADS/ACPIspec50.pdf | |
179 | */ | |
180 | ||
181 | switch(t) { | |
182 | ||
183 | case 1: | |
184 | case 3: | |
185 | case 6: | |
186 | return "desktop"; | |
187 | ||
188 | case 2: | |
189 | return "laptop"; | |
7640a5de | 190 | |
7871c8e9 LP |
191 | case 4: |
192 | case 5: | |
193 | case 7: | |
194 | return "server"; | |
7640a5de | 195 | |
7871c8e9 LP |
196 | case 8: |
197 | return "tablet"; | |
198 | } | |
199 | ||
200 | try_dmi: | |
7640a5de LP |
201 | r = read_one_line_file("/sys/class/dmi/id/chassis_type", &type); |
202 | if (r < 0) | |
203 | return NULL; | |
204 | ||
205 | r = safe_atou(type, &t); | |
206 | free(type); | |
7640a5de LP |
207 | if (r < 0) |
208 | return NULL; | |
209 | ||
210 | /* We only list the really obvious cases here. The DMI data is | |
211 | unreliable enough, so let's not do any additional guesswork | |
41550d40 LP |
212 | on top of that. |
213 | ||
214 | See the SMBIOS Specification 2.7.1 section 7.4.1 for | |
215 | details about the values listed here: | |
216 | ||
217 | http://www.dmtf.org/sites/default/files/standards/documents/DSP0134_2.7.1.pdf | |
218 | */ | |
7640a5de LP |
219 | |
220 | switch (t) { | |
221 | ||
222 | case 0x3: | |
223 | case 0x4: | |
224 | case 0x6: | |
225 | case 0x7: | |
7871c8e9 | 226 | return "desktop"; |
7640a5de | 227 | |
7871c8e9 | 228 | case 0x8: |
7640a5de LP |
229 | case 0x9: |
230 | case 0xA: | |
231 | case 0xE: | |
7871c8e9 LP |
232 | return "laptop"; |
233 | ||
234 | case 0xB: | |
235 | return "handset"; | |
7640a5de LP |
236 | |
237 | case 0x11: | |
41550d40 | 238 | case 0x1C: |
7871c8e9 | 239 | return "server"; |
7640a5de LP |
240 | } |
241 | ||
7640a5de LP |
242 | return NULL; |
243 | } | |
244 | ||
66a4c743 | 245 | static char* context_fallback_icon_name(Context *c) { |
7871c8e9 LP |
246 | const char *chassis; |
247 | ||
66a4c743 LP |
248 | assert(c); |
249 | ||
250 | if (!isempty(c->data[PROP_CHASSIS])) | |
251 | return strappend("computer-", c->data[PROP_CHASSIS]); | |
7871c8e9 LP |
252 | |
253 | chassis = fallback_chassis(); | |
254 | if (chassis) | |
255 | return strappend("computer-", chassis); | |
256 | ||
257 | return strdup("computer"); | |
258 | } | |
259 | ||
799298d6 | 260 | |
c779a442 | 261 | static bool hostname_is_useful(const char *hn) { |
fecc80c1 | 262 | return !isempty(hn) && !is_localhost(hn); |
c779a442 SW |
263 | } |
264 | ||
265 | static int context_update_kernel_hostname(Context *c) { | |
266 | const char *static_hn; | |
7640a5de LP |
267 | const char *hn; |
268 | ||
66a4c743 LP |
269 | assert(c); |
270 | ||
c779a442 SW |
271 | static_hn = c->data[PROP_STATIC_HOSTNAME]; |
272 | ||
273 | /* /etc/hostname with something other than "localhost" | |
274 | * has the highest preference ... */ | |
275 | if (hostname_is_useful(static_hn)) | |
276 | hn = static_hn; | |
277 | ||
278 | /* ... the transient host name, (ie: DHCP) comes next ...*/ | |
279 | else if (!isempty(c->data[PROP_HOSTNAME])) | |
66a4c743 | 280 | hn = c->data[PROP_HOSTNAME]; |
7640a5de | 281 | |
c779a442 SW |
282 | /* ... fallback to static "localhost.*" ignored above ... */ |
283 | else if (!isempty(static_hn)) | |
284 | hn = static_hn; | |
285 | ||
286 | /* ... and the ultimate fallback */ | |
287 | else | |
288 | hn = "localhost"; | |
289 | ||
605f81a8 | 290 | if (sethostname_idempotent(hn) < 0) |
7640a5de LP |
291 | return -errno; |
292 | ||
293 | return 0; | |
294 | } | |
295 | ||
66a4c743 | 296 | static int context_write_data_static_hostname(Context *c) { |
7640a5de | 297 | |
66a4c743 LP |
298 | assert(c); |
299 | ||
300 | if (isempty(c->data[PROP_STATIC_HOSTNAME])) { | |
7640a5de LP |
301 | |
302 | if (unlink("/etc/hostname") < 0) | |
303 | return errno == ENOENT ? 0 : -errno; | |
304 | ||
305 | return 0; | |
306 | } | |
66a4c743 | 307 | return write_string_file_atomic_label("/etc/hostname", c->data[PROP_STATIC_HOSTNAME]); |
7640a5de LP |
308 | } |
309 | ||
f200e8bb | 310 | static int context_write_data_machine_info(Context *c) { |
4f34ed54 | 311 | |
7640a5de LP |
312 | static const char * const name[_PROP_MAX] = { |
313 | [PROP_PRETTY_HOSTNAME] = "PRETTY_HOSTNAME", | |
7871c8e9 | 314 | [PROP_ICON_NAME] = "ICON_NAME", |
799298d6 JG |
315 | [PROP_CHASSIS] = "CHASSIS", |
316 | [PROP_DEPLOYMENT] = "DEPLOYMENT", | |
ce0f1493 | 317 | [PROP_LOCATION] = "LOCATION", |
7640a5de LP |
318 | }; |
319 | ||
0ccad099 | 320 | _cleanup_strv_free_ char **l = NULL; |
7640a5de LP |
321 | int r, p; |
322 | ||
66a4c743 LP |
323 | assert(c); |
324 | ||
717603e3 | 325 | r = load_env_file(NULL, "/etc/machine-info", NULL, &l); |
7640a5de LP |
326 | if (r < 0 && r != -ENOENT) |
327 | return r; | |
328 | ||
ce0f1493 | 329 | for (p = PROP_PRETTY_HOSTNAME; p <= PROP_LOCATION; p++) { |
d77ab3f7 LP |
330 | _cleanup_free_ char *t = NULL; |
331 | char **u; | |
7640a5de LP |
332 | |
333 | assert(name[p]); | |
334 | ||
66a4c743 | 335 | if (isempty(c->data[p])) { |
f8440af5 | 336 | strv_env_unset(l, name[p]); |
7640a5de LP |
337 | continue; |
338 | } | |
339 | ||
d77ab3f7 LP |
340 | t = strjoin(name[p], "=", c->data[p], NULL); |
341 | if (!t) | |
7640a5de | 342 | return -ENOMEM; |
7640a5de LP |
343 | |
344 | u = strv_env_set(l, t); | |
7640a5de LP |
345 | if (!u) |
346 | return -ENOMEM; | |
0ccad099 LP |
347 | |
348 | strv_free(l); | |
7640a5de LP |
349 | l = u; |
350 | } | |
351 | ||
352 | if (strv_isempty(l)) { | |
7640a5de LP |
353 | if (unlink("/etc/machine-info") < 0) |
354 | return errno == ENOENT ? 0 : -errno; | |
355 | ||
356 | return 0; | |
357 | } | |
358 | ||
0ccad099 | 359 | return write_env_file_label("/etc/machine-info", l); |
7640a5de LP |
360 | } |
361 | ||
66a4c743 LP |
362 | static int property_get_icon_name( |
363 | sd_bus *bus, | |
364 | const char *path, | |
365 | const char *interface, | |
366 | const char *property, | |
367 | sd_bus_message *reply, | |
ebcf1f97 LP |
368 | void *userdata, |
369 | sd_bus_error *error) { | |
7640a5de | 370 | |
66a4c743 LP |
371 | _cleanup_free_ char *n = NULL; |
372 | Context *c = userdata; | |
373 | const char *name; | |
7640a5de | 374 | |
66a4c743 LP |
375 | if (isempty(c->data[PROP_ICON_NAME])) |
376 | name = n = context_fallback_icon_name(c); | |
7640a5de | 377 | else |
66a4c743 LP |
378 | name = c->data[PROP_ICON_NAME]; |
379 | ||
380 | if (!name) | |
381 | return -ENOMEM; | |
7640a5de | 382 | |
ebcf1f97 | 383 | return sd_bus_message_append(reply, "s", name); |
7640a5de LP |
384 | } |
385 | ||
66a4c743 LP |
386 | static int property_get_chassis( |
387 | sd_bus *bus, | |
388 | const char *path, | |
389 | const char *interface, | |
390 | const char *property, | |
391 | sd_bus_message *reply, | |
ebcf1f97 LP |
392 | void *userdata, |
393 | sd_bus_error *error) { | |
7871c8e9 | 394 | |
66a4c743 LP |
395 | Context *c = userdata; |
396 | const char *name; | |
7871c8e9 | 397 | |
66a4c743 | 398 | if (isempty(c->data[PROP_CHASSIS])) |
7871c8e9 LP |
399 | name = fallback_chassis(); |
400 | else | |
66a4c743 | 401 | name = c->data[PROP_CHASSIS]; |
7871c8e9 | 402 | |
ebcf1f97 | 403 | return sd_bus_message_append(reply, "s", name); |
7871c8e9 LP |
404 | } |
405 | ||
ebcf1f97 | 406 | static int method_set_hostname(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) { |
66a4c743 LP |
407 | Context *c = userdata; |
408 | const char *name; | |
102d8f81 | 409 | int interactive; |
66a4c743 LP |
410 | char *h; |
411 | int r; | |
d200735e | 412 | |
66a4c743 LP |
413 | r = sd_bus_message_read(m, "sb", &name, &interactive); |
414 | if (r < 0) | |
ebcf1f97 | 415 | return r; |
d200735e | 416 | |
66a4c743 LP |
417 | if (isempty(name)) |
418 | name = c->data[PROP_STATIC_HOSTNAME]; | |
7640a5de | 419 | |
66a4c743 LP |
420 | if (isempty(name)) |
421 | name = "localhost"; | |
7640a5de | 422 | |
66a4c743 | 423 | if (!hostname_is_valid(name)) |
ebcf1f97 | 424 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid hostname '%s'", name); |
7640a5de | 425 | |
66a4c743 | 426 | if (streq_ptr(name, c->data[PROP_HOSTNAME])) |
df2d202e | 427 | return sd_bus_reply_method_return(m, NULL); |
7640a5de | 428 | |
f3885791 | 429 | r = bus_verify_polkit_async(m, CAP_SYS_ADMIN, "org.freedesktop.hostname1.set-hostname", interactive, &c->polkit_registry, error); |
66a4c743 | 430 | if (r < 0) |
ebcf1f97 | 431 | return r; |
66a4c743 LP |
432 | if (r == 0) |
433 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
7640a5de | 434 | |
66a4c743 LP |
435 | h = strdup(name); |
436 | if (!h) | |
ebcf1f97 | 437 | return -ENOMEM; |
7640a5de | 438 | |
66a4c743 LP |
439 | free(c->data[PROP_HOSTNAME]); |
440 | c->data[PROP_HOSTNAME] = h; | |
7640a5de | 441 | |
c779a442 | 442 | r = context_update_kernel_hostname(c); |
66a4c743 LP |
443 | if (r < 0) { |
444 | log_error("Failed to set host name: %s", strerror(-r)); | |
ebcf1f97 | 445 | return sd_bus_error_set_errnof(error, r, "Failed to set hostname: %s", strerror(-r)); |
66a4c743 | 446 | } |
7640a5de | 447 | |
66a4c743 | 448 | log_info("Changed host name to '%s'", strna(c->data[PROP_HOSTNAME])); |
7640a5de | 449 | |
66a4c743 | 450 | sd_bus_emit_properties_changed(bus, "/org/freedesktop/hostname1", "org.freedesktop.hostname1", "Hostname", NULL); |
7640a5de | 451 | |
df2d202e | 452 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 453 | } |
7640a5de | 454 | |
ebcf1f97 | 455 | static int method_set_static_hostname(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) { |
66a4c743 LP |
456 | Context *c = userdata; |
457 | const char *name; | |
102d8f81 | 458 | int interactive; |
66a4c743 | 459 | int r; |
7640a5de | 460 | |
66a4c743 LP |
461 | r = sd_bus_message_read(m, "sb", &name, &interactive); |
462 | if (r < 0) | |
ebcf1f97 | 463 | return r; |
7640a5de | 464 | |
66a4c743 LP |
465 | if (isempty(name)) |
466 | name = NULL; | |
7640a5de | 467 | |
66a4c743 | 468 | if (streq_ptr(name, c->data[PROP_STATIC_HOSTNAME])) |
df2d202e | 469 | return sd_bus_reply_method_return(m, NULL); |
7640a5de | 470 | |
f3885791 | 471 | r = bus_verify_polkit_async(m, CAP_SYS_ADMIN, "org.freedesktop.hostname1.set-static-hostname", interactive, &c->polkit_registry, error); |
66a4c743 | 472 | if (r < 0) |
ebcf1f97 | 473 | return r; |
66a4c743 LP |
474 | if (r == 0) |
475 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
7640a5de | 476 | |
66a4c743 LP |
477 | if (isempty(name)) { |
478 | free(c->data[PROP_STATIC_HOSTNAME]); | |
479 | c->data[PROP_STATIC_HOSTNAME] = NULL; | |
480 | } else { | |
481 | char *h; | |
7640a5de | 482 | |
66a4c743 | 483 | if (!hostname_is_valid(name)) |
ebcf1f97 | 484 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid static hostname '%s'", name); |
7640a5de | 485 | |
66a4c743 LP |
486 | h = strdup(name); |
487 | if (!h) | |
ebcf1f97 | 488 | return -ENOMEM; |
7640a5de | 489 | |
66a4c743 LP |
490 | free(c->data[PROP_STATIC_HOSTNAME]); |
491 | c->data[PROP_STATIC_HOSTNAME] = h; | |
492 | } | |
7640a5de | 493 | |
c779a442 SW |
494 | r = context_update_kernel_hostname(c); |
495 | if (r < 0) { | |
496 | log_error("Failed to set host name: %s", strerror(-r)); | |
497 | return sd_bus_error_set_errnof(error, r, "Failed to set hostname: %s", strerror(-r)); | |
498 | } | |
499 | ||
66a4c743 LP |
500 | r = context_write_data_static_hostname(c); |
501 | if (r < 0) { | |
502 | log_error("Failed to write static host name: %s", strerror(-r)); | |
ebcf1f97 | 503 | return sd_bus_error_set_errnof(error, r, "Failed to set static hostname: %s", strerror(-r)); |
66a4c743 | 504 | } |
7640a5de | 505 | |
66a4c743 | 506 | log_info("Changed static host name to '%s'", strna(c->data[PROP_STATIC_HOSTNAME])); |
7640a5de | 507 | |
66a4c743 | 508 | sd_bus_emit_properties_changed(bus, "/org/freedesktop/hostname1", "org.freedesktop.hostname1", "StaticHostname", NULL); |
7640a5de | 509 | |
df2d202e | 510 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 511 | } |
7640a5de | 512 | |
ebcf1f97 | 513 | static int set_machine_info(Context *c, sd_bus *bus, sd_bus_message *m, int prop, sd_bus_message_handler_t cb, sd_bus_error *error) { |
102d8f81 | 514 | int interactive; |
66a4c743 LP |
515 | const char *name; |
516 | int r; | |
517 | ||
518 | assert(c); | |
519 | assert(bus); | |
520 | assert(m); | |
521 | ||
522 | r = sd_bus_message_read(m, "sb", &name, &interactive); | |
523 | if (r < 0) | |
ebcf1f97 | 524 | return r; |
66a4c743 LP |
525 | |
526 | if (isempty(name)) | |
527 | name = NULL; | |
528 | ||
529 | if (streq_ptr(name, c->data[prop])) | |
df2d202e | 530 | return sd_bus_reply_method_return(m, NULL); |
7640a5de | 531 | |
66a4c743 LP |
532 | /* Since the pretty hostname should always be changed at the |
533 | * same time as the static one, use the same policy action for | |
534 | * both... */ | |
535 | ||
f3885791 | 536 | r = bus_verify_polkit_async(m, CAP_SYS_ADMIN, |
def9a7aa LP |
537 | prop == PROP_PRETTY_HOSTNAME ? |
538 | "org.freedesktop.hostname1.set-static-hostname" : | |
f3885791 | 539 | "org.freedesktop.hostname1.set-machine-info", interactive, &c->polkit_registry, error); |
66a4c743 | 540 | if (r < 0) |
ebcf1f97 | 541 | return r; |
66a4c743 LP |
542 | if (r == 0) |
543 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
544 | ||
545 | if (isempty(name)) { | |
546 | free(c->data[prop]); | |
547 | c->data[prop] = NULL; | |
548 | } else { | |
549 | char *h; | |
550 | ||
551 | /* The icon name might ultimately be used as file | |
552 | * name, so better be safe than sorry */ | |
553 | ||
554 | if (prop == PROP_ICON_NAME && !filename_is_safe(name)) | |
ebcf1f97 | 555 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid icon name '%s'", name); |
6294aa76 | 556 | if (prop == PROP_PRETTY_HOSTNAME && string_has_cc(name, NULL)) |
ebcf1f97 | 557 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid pretty host name '%s'", name); |
66a4c743 | 558 | if (prop == PROP_CHASSIS && !valid_chassis(name)) |
ebcf1f97 | 559 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid chassis '%s'", name); |
799298d6 JG |
560 | if (prop == PROP_DEPLOYMENT && !valid_deployment(name)) |
561 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid deployment '%s'", name); | |
ce0f1493 LP |
562 | if (prop == PROP_LOCATION && string_has_cc(name, NULL)) |
563 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid location '%s'", name); | |
66a4c743 LP |
564 | |
565 | h = strdup(name); | |
566 | if (!h) | |
ebcf1f97 | 567 | return -ENOMEM; |
66a4c743 LP |
568 | |
569 | free(c->data[prop]); | |
570 | c->data[prop] = h; | |
7640a5de LP |
571 | } |
572 | ||
f200e8bb | 573 | r = context_write_data_machine_info(c); |
66a4c743 LP |
574 | if (r < 0) { |
575 | log_error("Failed to write machine info: %s", strerror(-r)); | |
ebcf1f97 | 576 | return sd_bus_error_set_errnof(error, r, "Failed to write machine info: %s", strerror(-r)); |
66a4c743 | 577 | } |
7640a5de | 578 | |
66a4c743 LP |
579 | log_info("Changed %s to '%s'", |
580 | prop == PROP_PRETTY_HOSTNAME ? "pretty host name" : | |
799298d6 | 581 | prop == PROP_DEPLOYMENT ? "deployment" : |
ce0f1493 | 582 | prop == PROP_LOCATION ? "location" : |
66a4c743 | 583 | prop == PROP_CHASSIS ? "chassis" : "icon name", strna(c->data[prop])); |
7640a5de | 584 | |
66a4c743 LP |
585 | sd_bus_emit_properties_changed(bus, "/org/freedesktop/hostname1", "org.freedesktop.hostname1", |
586 | prop == PROP_PRETTY_HOSTNAME ? "PrettyHostname" : | |
799298d6 | 587 | prop == PROP_DEPLOYMENT ? "Deployment" : |
ce0f1493 | 588 | prop == PROP_LOCATION ? "Location" : |
799298d6 | 589 | prop == PROP_CHASSIS ? "Chassis" : "IconName" , NULL); |
7640a5de | 590 | |
df2d202e | 591 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 592 | } |
7640a5de | 593 | |
ebcf1f97 LP |
594 | static int method_set_pretty_hostname(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) { |
595 | return set_machine_info(userdata, bus, m, PROP_PRETTY_HOSTNAME, method_set_pretty_hostname, error); | |
7640a5de LP |
596 | } |
597 | ||
ebcf1f97 LP |
598 | static int method_set_icon_name(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) { |
599 | return set_machine_info(userdata, bus, m, PROP_ICON_NAME, method_set_icon_name, error); | |
66a4c743 LP |
600 | } |
601 | ||
ebcf1f97 LP |
602 | static int method_set_chassis(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) { |
603 | return set_machine_info(userdata, bus, m, PROP_CHASSIS, method_set_chassis, error); | |
66a4c743 LP |
604 | } |
605 | ||
799298d6 JG |
606 | static int method_set_deployment(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) { |
607 | return set_machine_info(userdata, bus, m, PROP_DEPLOYMENT, method_set_deployment, error); | |
608 | } | |
609 | ||
ce0f1493 LP |
610 | static int method_set_location(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) { |
611 | return set_machine_info(userdata, bus, m, PROP_LOCATION, method_set_location, error); | |
612 | } | |
613 | ||
66a4c743 LP |
614 | static const sd_bus_vtable hostname_vtable[] = { |
615 | SD_BUS_VTABLE_START(0), | |
caffbef6 | 616 | SD_BUS_PROPERTY("Hostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
66a4c743 LP |
617 | SD_BUS_PROPERTY("StaticHostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_STATIC_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
618 | SD_BUS_PROPERTY("PrettyHostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_PRETTY_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
619 | SD_BUS_PROPERTY("IconName", "s", property_get_icon_name, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
620 | SD_BUS_PROPERTY("Chassis", "s", property_get_chassis, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
ce0f1493 LP |
621 | SD_BUS_PROPERTY("Deployment", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_DEPLOYMENT, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
622 | SD_BUS_PROPERTY("Location", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_LOCATION, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
f426cc5d DH |
623 | SD_BUS_PROPERTY("KernelName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_NAME, SD_BUS_VTABLE_PROPERTY_CONST), |
624 | SD_BUS_PROPERTY("KernelRelease", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_RELEASE, SD_BUS_VTABLE_PROPERTY_CONST), | |
9be3455f | 625 | SD_BUS_PROPERTY("KernelVersion", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_VERSION, SD_BUS_VTABLE_PROPERTY_CONST), |
44c32988 DH |
626 | SD_BUS_PROPERTY("OperatingSystemPrettyName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_OS_PRETTY_NAME, SD_BUS_VTABLE_PROPERTY_CONST), |
627 | SD_BUS_PROPERTY("OperatingSystemCPEName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_OS_CPE_NAME, SD_BUS_VTABLE_PROPERTY_CONST), | |
adacb957 LP |
628 | SD_BUS_METHOD("SetHostname", "sb", NULL, method_set_hostname, SD_BUS_VTABLE_UNPRIVILEGED), |
629 | SD_BUS_METHOD("SetStaticHostname", "sb", NULL, method_set_static_hostname, SD_BUS_VTABLE_UNPRIVILEGED), | |
630 | SD_BUS_METHOD("SetPrettyHostname", "sb", NULL, method_set_pretty_hostname, SD_BUS_VTABLE_UNPRIVILEGED), | |
631 | SD_BUS_METHOD("SetIconName", "sb", NULL, method_set_icon_name, SD_BUS_VTABLE_UNPRIVILEGED), | |
632 | SD_BUS_METHOD("SetChassis", "sb", NULL, method_set_chassis, SD_BUS_VTABLE_UNPRIVILEGED), | |
799298d6 | 633 | SD_BUS_METHOD("SetDeployment", "sb", NULL, method_set_deployment, SD_BUS_VTABLE_UNPRIVILEGED), |
ce0f1493 | 634 | SD_BUS_METHOD("SetLocation", "sb", NULL, method_set_location, SD_BUS_VTABLE_UNPRIVILEGED), |
66a4c743 LP |
635 | SD_BUS_VTABLE_END, |
636 | }; | |
637 | ||
638 | static int connect_bus(Context *c, sd_event *event, sd_bus **_bus) { | |
24996861 | 639 | _cleanup_bus_close_unref_ sd_bus *bus = NULL; |
7640a5de LP |
640 | int r; |
641 | ||
66a4c743 LP |
642 | assert(c); |
643 | assert(event); | |
d0baa06f LP |
644 | assert(_bus); |
645 | ||
76b54375 | 646 | r = sd_bus_default_system(&bus); |
66a4c743 LP |
647 | if (r < 0) { |
648 | log_error("Failed to get system bus connection: %s", strerror(-r)); | |
649 | return r; | |
d0baa06f LP |
650 | } |
651 | ||
19befb2d | 652 | r = sd_bus_add_object_vtable(bus, NULL, "/org/freedesktop/hostname1", "org.freedesktop.hostname1", hostname_vtable, c); |
66a4c743 LP |
653 | if (r < 0) { |
654 | log_error("Failed to register object: %s", strerror(-r)); | |
655 | return r; | |
d0baa06f LP |
656 | } |
657 | ||
5bb658a1 | 658 | r = sd_bus_request_name(bus, "org.freedesktop.hostname1", 0); |
66a4c743 LP |
659 | if (r < 0) { |
660 | log_error("Failed to register name: %s", strerror(-r)); | |
661 | return r; | |
add10b5a LP |
662 | } |
663 | ||
66a4c743 LP |
664 | r = sd_bus_attach_event(bus, event, 0); |
665 | if (r < 0) { | |
666 | log_error("Failed to attach bus to event loop: %s", strerror(-r)); | |
667 | return r; | |
668 | } | |
d0baa06f | 669 | |
66a4c743 LP |
670 | *_bus = bus; |
671 | bus = NULL; | |
d0baa06f | 672 | |
66a4c743 | 673 | return 0; |
d0baa06f LP |
674 | } |
675 | ||
676 | int main(int argc, char *argv[]) { | |
66a4c743 | 677 | Context context = {}; |
66a4c743 | 678 | _cleanup_event_unref_ sd_event *event = NULL; |
24996861 | 679 | _cleanup_bus_close_unref_ sd_bus *bus = NULL; |
d0baa06f | 680 | int r; |
d0baa06f | 681 | |
7640a5de LP |
682 | log_set_target(LOG_TARGET_AUTO); |
683 | log_parse_environment(); | |
684 | log_open(); | |
685 | ||
4c12626c | 686 | umask(0022); |
cc56fafe | 687 | mac_selinux_init("/etc"); |
4c12626c | 688 | |
7640a5de LP |
689 | if (argc != 1) { |
690 | log_error("This program takes no arguments."); | |
691 | r = -EINVAL; | |
692 | goto finish; | |
693 | } | |
694 | ||
66a4c743 LP |
695 | if (argc != 1) { |
696 | log_error("This program takes no arguments."); | |
697 | r = -EINVAL; | |
698 | goto finish; | |
699 | } | |
700 | ||
afc6adb5 | 701 | r = sd_event_default(&event); |
7640a5de | 702 | if (r < 0) { |
66a4c743 | 703 | log_error("Failed to allocate event loop: %s", strerror(-r)); |
7640a5de LP |
704 | goto finish; |
705 | } | |
706 | ||
cde93897 LP |
707 | sd_event_set_watchdog(event, true); |
708 | ||
66a4c743 | 709 | r = connect_bus(&context, event, &bus); |
d0baa06f | 710 | if (r < 0) |
7640a5de | 711 | goto finish; |
7640a5de | 712 | |
66a4c743 LP |
713 | r = context_read_data(&context); |
714 | if (r < 0) { | |
3a3c71c1 | 715 | log_error("Failed to read hostname and machine information: %s", strerror(-r)); |
66a4c743 LP |
716 | goto finish; |
717 | } | |
ad740100 | 718 | |
37224a5f | 719 | r = bus_event_loop_with_idle(event, bus, "org.freedesktop.hostname1", DEFAULT_EXIT_USEC, NULL, NULL); |
66a4c743 LP |
720 | if (r < 0) { |
721 | log_error("Failed to run event loop: %s", strerror(-r)); | |
722 | goto finish; | |
ad740100 | 723 | } |
7640a5de | 724 | |
7640a5de | 725 | finish: |
36e34057 | 726 | context_free(&context); |
7640a5de | 727 | |
7640a5de LP |
728 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
729 | } |