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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
7640a5de | 2 | |
7640a5de LP |
3 | #include <errno.h> |
4 | #include <string.h> | |
f426cc5d | 5 | #include <sys/utsname.h> |
ca78ad1d ZJS |
6 | #include <sys/stat.h> |
7 | #include <sys/types.h> | |
cf0fbc49 | 8 | #include <unistd.h> |
7640a5de | 9 | |
b5efdb8a | 10 | #include "alloc-util.h" |
21e627da | 11 | #include "bus-common-errors.h" |
6bedfcbb | 12 | #include "bus-util.h" |
ad740100 | 13 | #include "def.h" |
686d13b9 LP |
14 | #include "env-file-label.h" |
15 | #include "env-file.h" | |
4d1a6904 | 16 | #include "env-util.h" |
6bedfcbb | 17 | #include "fileio-label.h" |
ee228be1 | 18 | #include "fileio.h" |
958b66ea | 19 | #include "hostname-util.h" |
21e627da | 20 | #include "id128-util.h" |
85ae63ee | 21 | #include "main-func.h" |
36dd5ffd | 22 | #include "missing_capability.h" |
7782e0a0 | 23 | #include "nscd-flush.h" |
d8b4d14d | 24 | #include "nulstr-util.h" |
d58ad743 | 25 | #include "os-util.h" |
6bedfcbb | 26 | #include "parse-util.h" |
bb15fafe | 27 | #include "path-util.h" |
6bedfcbb | 28 | #include "selinux-util.h" |
b22c8bfc | 29 | #include "signal-util.h" |
6bedfcbb | 30 | #include "strv.h" |
ee104e11 | 31 | #include "user-util.h" |
6bedfcbb LP |
32 | #include "util.h" |
33 | #include "virt.h" | |
91f9dcaf | 34 | |
799298d6 JG |
35 | #define VALID_DEPLOYMENT_CHARS (DIGITS LETTERS "-.:") |
36 | ||
7640a5de LP |
37 | enum { |
38 | PROP_HOSTNAME, | |
39 | PROP_STATIC_HOSTNAME, | |
40 | PROP_PRETTY_HOSTNAME, | |
41 | PROP_ICON_NAME, | |
7871c8e9 | 42 | PROP_CHASSIS, |
799298d6 | 43 | PROP_DEPLOYMENT, |
ce0f1493 | 44 | PROP_LOCATION, |
f426cc5d DH |
45 | PROP_KERNEL_NAME, |
46 | PROP_KERNEL_RELEASE, | |
9be3455f | 47 | PROP_KERNEL_VERSION, |
44c32988 DH |
48 | PROP_OS_PRETTY_NAME, |
49 | PROP_OS_CPE_NAME, | |
64928aa5 | 50 | PROP_HOME_URL, |
7640a5de LP |
51 | _PROP_MAX |
52 | }; | |
53 | ||
66a4c743 LP |
54 | typedef struct Context { |
55 | char *data[_PROP_MAX]; | |
56 | Hashmap *polkit_registry; | |
21e627da YW |
57 | sd_id128_t uuid; |
58 | bool has_uuid; | |
66a4c743 | 59 | } Context; |
ad740100 | 60 | |
66a4c743 | 61 | static void context_reset(Context *c) { |
7640a5de LP |
62 | int p; |
63 | ||
66a4c743 LP |
64 | assert(c); |
65 | ||
1f6b4113 | 66 | for (p = 0; p < _PROP_MAX; p++) |
a1e58e8e | 67 | c->data[p] = mfree(c->data[p]); |
7640a5de LP |
68 | } |
69 | ||
85ae63ee | 70 | static void context_clear(Context *c) { |
66a4c743 LP |
71 | assert(c); |
72 | ||
73 | context_reset(c); | |
36e34057 | 74 | bus_verify_polkit_async_registry_free(c->polkit_registry); |
66a4c743 LP |
75 | } |
76 | ||
77 | static int context_read_data(Context *c) { | |
7640a5de | 78 | int r; |
f426cc5d | 79 | struct utsname u; |
7640a5de | 80 | |
66a4c743 LP |
81 | assert(c); |
82 | ||
83 | context_reset(c); | |
7640a5de | 84 | |
f426cc5d DH |
85 | assert_se(uname(&u) >= 0); |
86 | c->data[PROP_KERNEL_NAME] = strdup(u.sysname); | |
87 | c->data[PROP_KERNEL_RELEASE] = strdup(u.release); | |
9be3455f DH |
88 | c->data[PROP_KERNEL_VERSION] = strdup(u.version); |
89 | if (!c->data[PROP_KERNEL_NAME] || !c->data[PROP_KERNEL_RELEASE] || | |
90 | !c->data[PROP_KERNEL_VERSION]) | |
f426cc5d DH |
91 | return -ENOMEM; |
92 | ||
66a4c743 LP |
93 | c->data[PROP_HOSTNAME] = gethostname_malloc(); |
94 | if (!c->data[PROP_HOSTNAME]) | |
7640a5de LP |
95 | return -ENOMEM; |
96 | ||
f35cb39e | 97 | r = read_etc_hostname(NULL, &c->data[PROP_STATIC_HOSTNAME]); |
7640a5de LP |
98 | if (r < 0 && r != -ENOENT) |
99 | return r; | |
100 | ||
aa8fbc74 | 101 | r = parse_env_file(NULL, "/etc/machine-info", |
66a4c743 LP |
102 | "PRETTY_HOSTNAME", &c->data[PROP_PRETTY_HOSTNAME], |
103 | "ICON_NAME", &c->data[PROP_ICON_NAME], | |
104 | "CHASSIS", &c->data[PROP_CHASSIS], | |
799298d6 | 105 | "DEPLOYMENT", &c->data[PROP_DEPLOYMENT], |
13df9c39 | 106 | "LOCATION", &c->data[PROP_LOCATION]); |
7640a5de LP |
107 | if (r < 0 && r != -ENOENT) |
108 | return r; | |
109 | ||
d58ad743 LP |
110 | r = parse_os_release(NULL, |
111 | "PRETTY_NAME", &c->data[PROP_OS_PRETTY_NAME], | |
112 | "CPE_NAME", &c->data[PROP_OS_CPE_NAME], | |
113 | "HOME_URL", &c->data[PROP_HOME_URL], | |
114 | NULL); | |
44c32988 DH |
115 | if (r < 0 && r != -ENOENT) |
116 | return r; | |
117 | ||
21e627da YW |
118 | r = id128_read("/sys/class/dmi/id/product_uuid", ID128_UUID, &c->uuid); |
119 | if (r < 0) | |
6839aa56 LP |
120 | log_full_errno(r == -ENOENT ? LOG_DEBUG : LOG_WARNING, r, |
121 | "Failed to read product UUID, ignoring: %m"); | |
122 | else if (sd_id128_is_null(c->uuid) || sd_id128_is_allf(c->uuid)) | |
123 | log_debug("DMI product UUID " SD_ID128_FORMAT_STR " is all 0x00 or all 0xFF, ignoring.", SD_ID128_FORMAT_VAL(c->uuid)); | |
124 | else | |
125 | c->has_uuid = true; | |
21e627da | 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" | |
34b52450 | 138 | "convertible\0" |
7871c8e9 LP |
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 | char *type; |
155 | unsigned t; | |
219bfe38 | 156 | int v, r; |
7871c8e9 | 157 | |
75f86906 | 158 | v = detect_virtualization(); |
75f86906 | 159 | if (VIRTUALIZATION_IS_VM(v)) |
7871c8e9 | 160 | return "vm"; |
75f86906 | 161 | if (VIRTUALIZATION_IS_CONTAINER(v)) |
7871c8e9 LP |
162 | return "container"; |
163 | ||
219bfe38 | 164 | r = read_one_line_file("/sys/class/dmi/id/chassis_type", &type); |
7871c8e9 | 165 | if (r < 0) |
219bfe38 | 166 | goto try_acpi; |
7871c8e9 LP |
167 | |
168 | r = safe_atou(type, &t); | |
169 | free(type); | |
170 | if (r < 0) | |
219bfe38 | 171 | goto try_acpi; |
7871c8e9 | 172 | |
219bfe38 LP |
173 | /* We only list the really obvious cases here. The DMI data is unreliable enough, so let's not do any |
174 | additional guesswork on top of that. | |
175 | ||
176 | See the SMBIOS Specification 3.0 section 7.4.1 for details about the values listed here: | |
177 | ||
178 | https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.0.0.pdf | |
7871c8e9 LP |
179 | */ |
180 | ||
219bfe38 | 181 | switch (t) { |
7871c8e9 | 182 | |
219bfe38 LP |
183 | case 0x3: /* Desktop */ |
184 | case 0x4: /* Low Profile Desktop */ | |
185 | case 0x6: /* Mini Tower */ | |
186 | case 0x7: /* Tower */ | |
7871c8e9 LP |
187 | return "desktop"; |
188 | ||
219bfe38 LP |
189 | case 0x8: /* Portable */ |
190 | case 0x9: /* Laptop */ | |
191 | case 0xA: /* Notebook */ | |
192 | case 0xE: /* Sub Notebook */ | |
7871c8e9 | 193 | return "laptop"; |
7640a5de | 194 | |
219bfe38 LP |
195 | case 0xB: /* Hand Held */ |
196 | return "handset"; | |
197 | ||
198 | case 0x11: /* Main Server Chassis */ | |
199 | case 0x1C: /* Blade */ | |
200 | case 0x1D: /* Blade Enclosure */ | |
7871c8e9 | 201 | return "server"; |
7640a5de | 202 | |
219bfe38 | 203 | case 0x1E: /* Tablet */ |
7871c8e9 | 204 | return "tablet"; |
b70af833 DH |
205 | |
206 | case 0x1F: /* Convertible */ | |
b4227dbb | 207 | case 0x20: /* Detachable */ |
b70af833 | 208 | return "convertible"; |
7871c8e9 LP |
209 | } |
210 | ||
219bfe38 LP |
211 | try_acpi: |
212 | r = read_one_line_file("/sys/firmware/acpi/pm_profile", &type); | |
7640a5de LP |
213 | if (r < 0) |
214 | return NULL; | |
215 | ||
216 | r = safe_atou(type, &t); | |
217 | free(type); | |
7640a5de LP |
218 | if (r < 0) |
219 | return NULL; | |
220 | ||
219bfe38 LP |
221 | /* We only list the really obvious cases here as the ACPI data is not really super reliable. |
222 | * | |
223 | * See the ACPI 5.0 Spec Section 5.2.9.1 for details: | |
224 | * | |
225 | * http://www.acpi.info/DOWNLOADS/ACPIspec50.pdf | |
41550d40 | 226 | */ |
7640a5de | 227 | |
219bfe38 | 228 | switch(t) { |
7640a5de | 229 | |
219bfe38 LP |
230 | case 1: /* Desktop */ |
231 | case 3: /* Workstation */ | |
232 | case 6: /* Appliance PC */ | |
7871c8e9 | 233 | return "desktop"; |
7640a5de | 234 | |
219bfe38 | 235 | case 2: /* Mobile */ |
7871c8e9 LP |
236 | return "laptop"; |
237 | ||
219bfe38 LP |
238 | case 4: /* Enterprise Server */ |
239 | case 5: /* SOHO Server */ | |
240 | case 7: /* Performance Server */ | |
7871c8e9 | 241 | return "server"; |
f3f4f008 | 242 | |
219bfe38 | 243 | case 8: /* Tablet */ |
f3f4f008 | 244 | return "tablet"; |
7640a5de LP |
245 | } |
246 | ||
7640a5de LP |
247 | return NULL; |
248 | } | |
249 | ||
66a4c743 | 250 | static char* context_fallback_icon_name(Context *c) { |
7871c8e9 LP |
251 | const char *chassis; |
252 | ||
66a4c743 LP |
253 | assert(c); |
254 | ||
255 | if (!isempty(c->data[PROP_CHASSIS])) | |
256 | return strappend("computer-", c->data[PROP_CHASSIS]); | |
7871c8e9 LP |
257 | |
258 | chassis = fallback_chassis(); | |
259 | if (chassis) | |
260 | return strappend("computer-", chassis); | |
261 | ||
262 | return strdup("computer"); | |
263 | } | |
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 | ||
7782e0a0 LP |
297 | (void) nscd_flush_cache(STRV_MAKE("hosts")); |
298 | ||
7640a5de LP |
299 | return 0; |
300 | } | |
301 | ||
66a4c743 | 302 | static int context_write_data_static_hostname(Context *c) { |
7640a5de | 303 | |
66a4c743 LP |
304 | assert(c); |
305 | ||
306 | if (isempty(c->data[PROP_STATIC_HOSTNAME])) { | |
7640a5de LP |
307 | |
308 | if (unlink("/etc/hostname") < 0) | |
309 | return errno == ENOENT ? 0 : -errno; | |
310 | ||
311 | return 0; | |
312 | } | |
66a4c743 | 313 | return write_string_file_atomic_label("/etc/hostname", c->data[PROP_STATIC_HOSTNAME]); |
7640a5de LP |
314 | } |
315 | ||
f200e8bb | 316 | static int context_write_data_machine_info(Context *c) { |
4f34ed54 | 317 | |
7640a5de LP |
318 | static const char * const name[_PROP_MAX] = { |
319 | [PROP_PRETTY_HOSTNAME] = "PRETTY_HOSTNAME", | |
7871c8e9 | 320 | [PROP_ICON_NAME] = "ICON_NAME", |
799298d6 JG |
321 | [PROP_CHASSIS] = "CHASSIS", |
322 | [PROP_DEPLOYMENT] = "DEPLOYMENT", | |
ce0f1493 | 323 | [PROP_LOCATION] = "LOCATION", |
7640a5de LP |
324 | }; |
325 | ||
0ccad099 | 326 | _cleanup_strv_free_ char **l = NULL; |
7640a5de LP |
327 | int r, p; |
328 | ||
66a4c743 LP |
329 | assert(c); |
330 | ||
aa8fbc74 | 331 | r = load_env_file(NULL, "/etc/machine-info", &l); |
7640a5de LP |
332 | if (r < 0 && r != -ENOENT) |
333 | return r; | |
334 | ||
ce0f1493 | 335 | for (p = PROP_PRETTY_HOSTNAME; p <= PROP_LOCATION; p++) { |
d77ab3f7 LP |
336 | _cleanup_free_ char *t = NULL; |
337 | char **u; | |
7640a5de LP |
338 | |
339 | assert(name[p]); | |
340 | ||
66a4c743 | 341 | if (isempty(c->data[p])) { |
f8440af5 | 342 | strv_env_unset(l, name[p]); |
7640a5de LP |
343 | continue; |
344 | } | |
345 | ||
605405c6 | 346 | t = strjoin(name[p], "=", c->data[p]); |
d77ab3f7 | 347 | if (!t) |
7640a5de | 348 | return -ENOMEM; |
7640a5de LP |
349 | |
350 | u = strv_env_set(l, t); | |
7640a5de LP |
351 | if (!u) |
352 | return -ENOMEM; | |
0ccad099 | 353 | |
130d3d22 | 354 | strv_free_and_replace(l, u); |
7640a5de LP |
355 | } |
356 | ||
357 | if (strv_isempty(l)) { | |
7640a5de LP |
358 | if (unlink("/etc/machine-info") < 0) |
359 | return errno == ENOENT ? 0 : -errno; | |
360 | ||
361 | return 0; | |
362 | } | |
363 | ||
0ccad099 | 364 | return write_env_file_label("/etc/machine-info", l); |
7640a5de LP |
365 | } |
366 | ||
66a4c743 LP |
367 | static int property_get_icon_name( |
368 | sd_bus *bus, | |
369 | const char *path, | |
370 | const char *interface, | |
371 | const char *property, | |
372 | sd_bus_message *reply, | |
ebcf1f97 LP |
373 | void *userdata, |
374 | sd_bus_error *error) { | |
7640a5de | 375 | |
66a4c743 LP |
376 | _cleanup_free_ char *n = NULL; |
377 | Context *c = userdata; | |
378 | const char *name; | |
7640a5de | 379 | |
66a4c743 LP |
380 | if (isempty(c->data[PROP_ICON_NAME])) |
381 | name = n = context_fallback_icon_name(c); | |
7640a5de | 382 | else |
66a4c743 LP |
383 | name = c->data[PROP_ICON_NAME]; |
384 | ||
385 | if (!name) | |
386 | return -ENOMEM; | |
7640a5de | 387 | |
ebcf1f97 | 388 | return sd_bus_message_append(reply, "s", name); |
7640a5de LP |
389 | } |
390 | ||
66a4c743 LP |
391 | static int property_get_chassis( |
392 | sd_bus *bus, | |
393 | const char *path, | |
394 | const char *interface, | |
395 | const char *property, | |
396 | sd_bus_message *reply, | |
ebcf1f97 LP |
397 | void *userdata, |
398 | sd_bus_error *error) { | |
7871c8e9 | 399 | |
66a4c743 LP |
400 | Context *c = userdata; |
401 | const char *name; | |
7871c8e9 | 402 | |
66a4c743 | 403 | if (isempty(c->data[PROP_CHASSIS])) |
7871c8e9 LP |
404 | name = fallback_chassis(); |
405 | else | |
66a4c743 | 406 | name = c->data[PROP_CHASSIS]; |
7871c8e9 | 407 | |
ebcf1f97 | 408 | return sd_bus_message_append(reply, "s", name); |
7871c8e9 LP |
409 | } |
410 | ||
19070062 | 411 | static int method_set_hostname(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
66a4c743 LP |
412 | Context *c = userdata; |
413 | const char *name; | |
102d8f81 | 414 | int interactive; |
66a4c743 | 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 | |
c650f207 YW |
450 | r = free_and_strdup(&c->data[PROP_HOSTNAME], name); |
451 | if (r < 0) | |
452 | return r; | |
7640a5de | 453 | |
c779a442 | 454 | r = context_update_kernel_hostname(c); |
66a4c743 | 455 | if (r < 0) { |
da927ba9 | 456 | log_error_errno(r, "Failed to set host name: %m"); |
1b4cd646 | 457 | return sd_bus_error_set_errnof(error, r, "Failed to set hostname: %m"); |
66a4c743 | 458 | } |
7640a5de | 459 | |
66a4c743 | 460 | log_info("Changed host name to '%s'", strna(c->data[PROP_HOSTNAME])); |
7640a5de | 461 | |
19070062 | 462 | (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), "/org/freedesktop/hostname1", "org.freedesktop.hostname1", "Hostname", NULL); |
7640a5de | 463 | |
df2d202e | 464 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 465 | } |
7640a5de | 466 | |
19070062 | 467 | static int method_set_static_hostname(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
66a4c743 LP |
468 | Context *c = userdata; |
469 | const char *name; | |
102d8f81 | 470 | int interactive; |
66a4c743 | 471 | int r; |
7640a5de | 472 | |
19070062 LP |
473 | assert(m); |
474 | assert(c); | |
475 | ||
66a4c743 LP |
476 | r = sd_bus_message_read(m, "sb", &name, &interactive); |
477 | if (r < 0) | |
ebcf1f97 | 478 | return r; |
7640a5de | 479 | |
3c6f7c34 | 480 | name = empty_to_null(name); |
7640a5de | 481 | |
66a4c743 | 482 | if (streq_ptr(name, c->data[PROP_STATIC_HOSTNAME])) |
df2d202e | 483 | return sd_bus_reply_method_return(m, NULL); |
7640a5de | 484 | |
c650f207 YW |
485 | if (!isempty(name) && !hostname_is_valid(name, false)) |
486 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid static hostname '%s'", name); | |
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 | |
c650f207 YW |
502 | r = free_and_strdup(&c->data[PROP_STATIC_HOSTNAME], name); |
503 | if (r < 0) | |
504 | return r; | |
7640a5de | 505 | |
c779a442 SW |
506 | r = context_update_kernel_hostname(c); |
507 | if (r < 0) { | |
da927ba9 | 508 | log_error_errno(r, "Failed to set host name: %m"); |
1b4cd646 | 509 | return sd_bus_error_set_errnof(error, r, "Failed to set hostname: %m"); |
c779a442 SW |
510 | } |
511 | ||
66a4c743 LP |
512 | r = context_write_data_static_hostname(c); |
513 | if (r < 0) { | |
da927ba9 | 514 | log_error_errno(r, "Failed to write static host name: %m"); |
1b4cd646 | 515 | return sd_bus_error_set_errnof(error, r, "Failed to set static hostname: %m"); |
66a4c743 | 516 | } |
7640a5de | 517 | |
66a4c743 | 518 | log_info("Changed static host name to '%s'", strna(c->data[PROP_STATIC_HOSTNAME])); |
7640a5de | 519 | |
19070062 | 520 | (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), "/org/freedesktop/hostname1", "org.freedesktop.hostname1", "StaticHostname", NULL); |
7640a5de | 521 | |
df2d202e | 522 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 523 | } |
7640a5de | 524 | |
19070062 | 525 | static int set_machine_info(Context *c, sd_bus_message *m, int prop, sd_bus_message_handler_t cb, sd_bus_error *error) { |
102d8f81 | 526 | int interactive; |
66a4c743 LP |
527 | const char *name; |
528 | int r; | |
529 | ||
530 | assert(c); | |
66a4c743 LP |
531 | assert(m); |
532 | ||
533 | r = sd_bus_message_read(m, "sb", &name, &interactive); | |
534 | if (r < 0) | |
ebcf1f97 | 535 | return r; |
66a4c743 | 536 | |
3c6f7c34 | 537 | name = empty_to_null(name); |
66a4c743 LP |
538 | |
539 | if (streq_ptr(name, c->data[prop])) | |
df2d202e | 540 | return sd_bus_reply_method_return(m, NULL); |
7640a5de | 541 | |
c650f207 YW |
542 | if (!isempty(name)) { |
543 | /* The icon name might ultimately be used as file | |
544 | * name, so better be safe than sorry */ | |
545 | ||
546 | if (prop == PROP_ICON_NAME && !filename_is_valid(name)) | |
547 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid icon name '%s'", name); | |
548 | if (prop == PROP_PRETTY_HOSTNAME && string_has_cc(name, NULL)) | |
549 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid pretty host name '%s'", name); | |
550 | if (prop == PROP_CHASSIS && !valid_chassis(name)) | |
551 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid chassis '%s'", name); | |
552 | if (prop == PROP_DEPLOYMENT && !valid_deployment(name)) | |
553 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid deployment '%s'", name); | |
554 | if (prop == PROP_LOCATION && string_has_cc(name, NULL)) | |
555 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid location '%s'", name); | |
556 | } | |
557 | ||
66a4c743 LP |
558 | /* Since the pretty hostname should always be changed at the |
559 | * same time as the static one, use the same policy action for | |
560 | * both... */ | |
561 | ||
c529695e LP |
562 | r = bus_verify_polkit_async( |
563 | m, | |
564 | CAP_SYS_ADMIN, | |
565 | prop == PROP_PRETTY_HOSTNAME ? "org.freedesktop.hostname1.set-static-hostname" : "org.freedesktop.hostname1.set-machine-info", | |
403ed0e5 | 566 | NULL, |
c529695e LP |
567 | interactive, |
568 | UID_INVALID, | |
569 | &c->polkit_registry, | |
570 | error); | |
66a4c743 | 571 | if (r < 0) |
ebcf1f97 | 572 | return r; |
66a4c743 LP |
573 | if (r == 0) |
574 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
575 | ||
c650f207 YW |
576 | r = free_and_strdup(&c->data[prop], name); |
577 | if (r < 0) | |
578 | return r; | |
7640a5de | 579 | |
f200e8bb | 580 | r = context_write_data_machine_info(c); |
66a4c743 | 581 | if (r < 0) { |
da927ba9 | 582 | log_error_errno(r, "Failed to write machine info: %m"); |
1b4cd646 | 583 | return sd_bus_error_set_errnof(error, r, "Failed to write machine info: %m"); |
66a4c743 | 584 | } |
7640a5de | 585 | |
66a4c743 LP |
586 | log_info("Changed %s to '%s'", |
587 | prop == PROP_PRETTY_HOSTNAME ? "pretty host name" : | |
799298d6 | 588 | prop == PROP_DEPLOYMENT ? "deployment" : |
ce0f1493 | 589 | prop == PROP_LOCATION ? "location" : |
66a4c743 | 590 | prop == PROP_CHASSIS ? "chassis" : "icon name", strna(c->data[prop])); |
7640a5de | 591 | |
19070062 LP |
592 | (void) sd_bus_emit_properties_changed( |
593 | sd_bus_message_get_bus(m), | |
594 | "/org/freedesktop/hostname1", | |
595 | "org.freedesktop.hostname1", | |
596 | prop == PROP_PRETTY_HOSTNAME ? "PrettyHostname" : | |
597 | prop == PROP_DEPLOYMENT ? "Deployment" : | |
598 | prop == PROP_LOCATION ? "Location" : | |
599 | prop == PROP_CHASSIS ? "Chassis" : "IconName" , NULL); | |
7640a5de | 600 | |
df2d202e | 601 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 602 | } |
7640a5de | 603 | |
19070062 LP |
604 | static int method_set_pretty_hostname(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
605 | return set_machine_info(userdata, m, PROP_PRETTY_HOSTNAME, method_set_pretty_hostname, error); | |
7640a5de LP |
606 | } |
607 | ||
19070062 LP |
608 | static int method_set_icon_name(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
609 | return set_machine_info(userdata, m, PROP_ICON_NAME, method_set_icon_name, error); | |
66a4c743 LP |
610 | } |
611 | ||
19070062 LP |
612 | static int method_set_chassis(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
613 | return set_machine_info(userdata, m, PROP_CHASSIS, method_set_chassis, error); | |
66a4c743 LP |
614 | } |
615 | ||
19070062 LP |
616 | static int method_set_deployment(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
617 | return set_machine_info(userdata, m, PROP_DEPLOYMENT, method_set_deployment, error); | |
799298d6 JG |
618 | } |
619 | ||
19070062 LP |
620 | static int method_set_location(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
621 | return set_machine_info(userdata, m, PROP_LOCATION, method_set_location, error); | |
ce0f1493 LP |
622 | } |
623 | ||
21e627da YW |
624 | static int method_get_product_uuid(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
625 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; | |
626 | Context *c = userdata; | |
627 | int interactive, r; | |
628 | ||
629 | assert(m); | |
630 | assert(c); | |
631 | ||
632 | if (!c->has_uuid) | |
633 | return sd_bus_error_set(error, BUS_ERROR_NO_PRODUCT_UUID, "Failed to read product UUID from /sys/class/dmi/id/product_uuid"); | |
634 | ||
635 | r = sd_bus_message_read(m, "b", &interactive); | |
636 | if (r < 0) | |
637 | return r; | |
638 | ||
639 | r = bus_verify_polkit_async( | |
640 | m, | |
641 | CAP_SYS_ADMIN, | |
642 | "org.freedesktop.hostname1.get-product-uuid", | |
643 | NULL, | |
644 | interactive, | |
645 | UID_INVALID, | |
646 | &c->polkit_registry, | |
647 | error); | |
648 | if (r < 0) | |
649 | return r; | |
650 | if (r == 0) | |
651 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
652 | ||
653 | r = sd_bus_message_new_method_return(m, &reply); | |
654 | if (r < 0) | |
655 | return r; | |
656 | ||
657 | r = sd_bus_message_append_array(reply, 'y', &c->uuid, sizeof(c->uuid)); | |
658 | if (r < 0) | |
659 | return r; | |
660 | ||
661 | return sd_bus_send(NULL, reply, NULL); | |
662 | } | |
663 | ||
66a4c743 LP |
664 | static const sd_bus_vtable hostname_vtable[] = { |
665 | SD_BUS_VTABLE_START(0), | |
caffbef6 | 666 | SD_BUS_PROPERTY("Hostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
66a4c743 LP |
667 | SD_BUS_PROPERTY("StaticHostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_STATIC_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
668 | SD_BUS_PROPERTY("PrettyHostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_PRETTY_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
669 | SD_BUS_PROPERTY("IconName", "s", property_get_icon_name, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
670 | SD_BUS_PROPERTY("Chassis", "s", property_get_chassis, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
ce0f1493 LP |
671 | SD_BUS_PROPERTY("Deployment", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_DEPLOYMENT, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
672 | SD_BUS_PROPERTY("Location", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_LOCATION, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
f426cc5d DH |
673 | SD_BUS_PROPERTY("KernelName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_NAME, SD_BUS_VTABLE_PROPERTY_CONST), |
674 | SD_BUS_PROPERTY("KernelRelease", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_RELEASE, SD_BUS_VTABLE_PROPERTY_CONST), | |
9be3455f | 675 | SD_BUS_PROPERTY("KernelVersion", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_VERSION, SD_BUS_VTABLE_PROPERTY_CONST), |
44c32988 DH |
676 | SD_BUS_PROPERTY("OperatingSystemPrettyName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_OS_PRETTY_NAME, SD_BUS_VTABLE_PROPERTY_CONST), |
677 | SD_BUS_PROPERTY("OperatingSystemCPEName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_OS_CPE_NAME, SD_BUS_VTABLE_PROPERTY_CONST), | |
64928aa5 | 678 | SD_BUS_PROPERTY("HomeURL", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_HOME_URL, SD_BUS_VTABLE_PROPERTY_CONST), |
adacb957 LP |
679 | SD_BUS_METHOD("SetHostname", "sb", NULL, method_set_hostname, SD_BUS_VTABLE_UNPRIVILEGED), |
680 | SD_BUS_METHOD("SetStaticHostname", "sb", NULL, method_set_static_hostname, SD_BUS_VTABLE_UNPRIVILEGED), | |
681 | SD_BUS_METHOD("SetPrettyHostname", "sb", NULL, method_set_pretty_hostname, SD_BUS_VTABLE_UNPRIVILEGED), | |
682 | SD_BUS_METHOD("SetIconName", "sb", NULL, method_set_icon_name, SD_BUS_VTABLE_UNPRIVILEGED), | |
683 | SD_BUS_METHOD("SetChassis", "sb", NULL, method_set_chassis, SD_BUS_VTABLE_UNPRIVILEGED), | |
799298d6 | 684 | SD_BUS_METHOD("SetDeployment", "sb", NULL, method_set_deployment, SD_BUS_VTABLE_UNPRIVILEGED), |
ce0f1493 | 685 | SD_BUS_METHOD("SetLocation", "sb", NULL, method_set_location, SD_BUS_VTABLE_UNPRIVILEGED), |
21e627da | 686 | SD_BUS_METHOD("GetProductUUID", "b", "ay", method_get_product_uuid, SD_BUS_VTABLE_UNPRIVILEGED), |
66a4c743 LP |
687 | SD_BUS_VTABLE_END, |
688 | }; | |
689 | ||
690 | static int connect_bus(Context *c, sd_event *event, sd_bus **_bus) { | |
4afd3348 | 691 | _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; |
7640a5de LP |
692 | int r; |
693 | ||
66a4c743 LP |
694 | assert(c); |
695 | assert(event); | |
d0baa06f LP |
696 | assert(_bus); |
697 | ||
76b54375 | 698 | r = sd_bus_default_system(&bus); |
23bbb0de MS |
699 | if (r < 0) |
700 | return log_error_errno(r, "Failed to get system bus connection: %m"); | |
d0baa06f | 701 | |
19befb2d | 702 | r = sd_bus_add_object_vtable(bus, NULL, "/org/freedesktop/hostname1", "org.freedesktop.hostname1", hostname_vtable, c); |
23bbb0de MS |
703 | if (r < 0) |
704 | return log_error_errno(r, "Failed to register object: %m"); | |
d0baa06f | 705 | |
0c0b9306 | 706 | r = sd_bus_request_name_async(bus, NULL, "org.freedesktop.hostname1", 0, NULL, NULL); |
23bbb0de | 707 | if (r < 0) |
0c0b9306 | 708 | return log_error_errno(r, "Failed to request name: %m"); |
add10b5a | 709 | |
66a4c743 | 710 | r = sd_bus_attach_event(bus, event, 0); |
23bbb0de MS |
711 | if (r < 0) |
712 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
d0baa06f | 713 | |
1cc6c93a | 714 | *_bus = TAKE_PTR(bus); |
d0baa06f | 715 | |
66a4c743 | 716 | return 0; |
d0baa06f LP |
717 | } |
718 | ||
85ae63ee YW |
719 | static int run(int argc, char *argv[]) { |
720 | _cleanup_(context_clear) Context context = {}; | |
4afd3348 LP |
721 | _cleanup_(sd_event_unrefp) sd_event *event = NULL; |
722 | _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; | |
d0baa06f | 723 | int r; |
d0baa06f | 724 | |
6bf3c61c | 725 | log_setup_service(); |
7640a5de | 726 | |
4c12626c | 727 | umask(0022); |
c3dacc8b | 728 | mac_selinux_init(); |
4c12626c | 729 | |
7640a5de LP |
730 | if (argc != 1) { |
731 | log_error("This program takes no arguments."); | |
85ae63ee | 732 | return -EINVAL; |
7640a5de LP |
733 | } |
734 | ||
b22c8bfc YW |
735 | assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0); |
736 | ||
afc6adb5 | 737 | r = sd_event_default(&event); |
85ae63ee YW |
738 | if (r < 0) |
739 | return log_error_errno(r, "Failed to allocate event loop: %m"); | |
7640a5de | 740 | |
b22c8bfc YW |
741 | (void) sd_event_set_watchdog(event, true); |
742 | ||
743 | r = sd_event_add_signal(event, NULL, SIGINT, NULL, NULL); | |
85ae63ee YW |
744 | if (r < 0) |
745 | return log_error_errno(r, "Failed to install SIGINT handler: %m"); | |
b22c8bfc YW |
746 | |
747 | r = sd_event_add_signal(event, NULL, SIGTERM, NULL, NULL); | |
85ae63ee YW |
748 | if (r < 0) |
749 | return log_error_errno(r, "Failed to install SIGTERM handler: %m"); | |
cde93897 | 750 | |
66a4c743 | 751 | r = connect_bus(&context, event, &bus); |
d0baa06f | 752 | if (r < 0) |
85ae63ee | 753 | return r; |
7640a5de | 754 | |
66a4c743 | 755 | r = context_read_data(&context); |
85ae63ee YW |
756 | if (r < 0) |
757 | return log_error_errno(r, "Failed to read hostname and machine information: %m"); | |
ad740100 | 758 | |
37224a5f | 759 | r = bus_event_loop_with_idle(event, bus, "org.freedesktop.hostname1", DEFAULT_EXIT_USEC, NULL, NULL); |
85ae63ee YW |
760 | if (r < 0) |
761 | return log_error_errno(r, "Failed to run event loop: %m"); | |
7640a5de | 762 | |
85ae63ee | 763 | return 0; |
7640a5de | 764 | } |
85ae63ee YW |
765 | |
766 | DEFINE_MAIN_FUNCTION(run); |