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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
7640a5de | 2 | |
7640a5de | 3 | #include <errno.h> |
f426cc5d | 4 | #include <sys/utsname.h> |
ca78ad1d ZJS |
5 | #include <sys/stat.h> |
6 | #include <sys/types.h> | |
cf0fbc49 | 7 | #include <unistd.h> |
7640a5de | 8 | |
b5efdb8a | 9 | #include "alloc-util.h" |
21e627da | 10 | #include "bus-common-errors.h" |
269e4d2d | 11 | #include "bus-polkit.h" |
ad740100 | 12 | #include "def.h" |
686d13b9 LP |
13 | #include "env-file-label.h" |
14 | #include "env-file.h" | |
4d1a6904 | 15 | #include "env-util.h" |
6bedfcbb | 16 | #include "fileio-label.h" |
ee228be1 | 17 | #include "fileio.h" |
958b66ea | 18 | #include "hostname-util.h" |
21e627da | 19 | #include "id128-util.h" |
85ae63ee | 20 | #include "main-func.h" |
36dd5ffd | 21 | #include "missing_capability.h" |
7782e0a0 | 22 | #include "nscd-flush.h" |
d8b4d14d | 23 | #include "nulstr-util.h" |
d58ad743 | 24 | #include "os-util.h" |
6bedfcbb | 25 | #include "parse-util.h" |
bb15fafe | 26 | #include "path-util.h" |
6bedfcbb | 27 | #include "selinux-util.h" |
b22c8bfc | 28 | #include "signal-util.h" |
6bedfcbb | 29 | #include "strv.h" |
ee104e11 | 30 | #include "user-util.h" |
6bedfcbb LP |
31 | #include "util.h" |
32 | #include "virt.h" | |
91f9dcaf | 33 | |
799298d6 JG |
34 | #define VALID_DEPLOYMENT_CHARS (DIGITS LETTERS "-.:") |
35 | ||
7640a5de LP |
36 | enum { |
37 | PROP_HOSTNAME, | |
38 | PROP_STATIC_HOSTNAME, | |
39 | PROP_PRETTY_HOSTNAME, | |
40 | PROP_ICON_NAME, | |
7871c8e9 | 41 | PROP_CHASSIS, |
799298d6 | 42 | PROP_DEPLOYMENT, |
ce0f1493 | 43 | PROP_LOCATION, |
f426cc5d DH |
44 | PROP_KERNEL_NAME, |
45 | PROP_KERNEL_RELEASE, | |
9be3455f | 46 | PROP_KERNEL_VERSION, |
44c32988 DH |
47 | PROP_OS_PRETTY_NAME, |
48 | PROP_OS_CPE_NAME, | |
64928aa5 | 49 | PROP_HOME_URL, |
7640a5de LP |
50 | _PROP_MAX |
51 | }; | |
52 | ||
66a4c743 LP |
53 | typedef struct Context { |
54 | char *data[_PROP_MAX]; | |
55 | Hashmap *polkit_registry; | |
21e627da YW |
56 | sd_id128_t uuid; |
57 | bool has_uuid; | |
66a4c743 | 58 | } Context; |
ad740100 | 59 | |
66a4c743 | 60 | static void context_reset(Context *c) { |
7640a5de LP |
61 | int p; |
62 | ||
66a4c743 LP |
63 | assert(c); |
64 | ||
1f6b4113 | 65 | for (p = 0; p < _PROP_MAX; p++) |
a1e58e8e | 66 | c->data[p] = mfree(c->data[p]); |
7640a5de LP |
67 | } |
68 | ||
85ae63ee | 69 | static void context_clear(Context *c) { |
66a4c743 LP |
70 | assert(c); |
71 | ||
72 | context_reset(c); | |
36e34057 | 73 | bus_verify_polkit_async_registry_free(c->polkit_registry); |
66a4c743 LP |
74 | } |
75 | ||
76 | static int context_read_data(Context *c) { | |
7640a5de | 77 | int r; |
f426cc5d | 78 | struct utsname u; |
7640a5de | 79 | |
66a4c743 LP |
80 | assert(c); |
81 | ||
82 | context_reset(c); | |
7640a5de | 83 | |
f426cc5d DH |
84 | assert_se(uname(&u) >= 0); |
85 | c->data[PROP_KERNEL_NAME] = strdup(u.sysname); | |
86 | c->data[PROP_KERNEL_RELEASE] = strdup(u.release); | |
9be3455f DH |
87 | c->data[PROP_KERNEL_VERSION] = strdup(u.version); |
88 | if (!c->data[PROP_KERNEL_NAME] || !c->data[PROP_KERNEL_RELEASE] || | |
89 | !c->data[PROP_KERNEL_VERSION]) | |
f426cc5d DH |
90 | return -ENOMEM; |
91 | ||
66a4c743 LP |
92 | c->data[PROP_HOSTNAME] = gethostname_malloc(); |
93 | if (!c->data[PROP_HOSTNAME]) | |
7640a5de LP |
94 | return -ENOMEM; |
95 | ||
f35cb39e | 96 | r = read_etc_hostname(NULL, &c->data[PROP_STATIC_HOSTNAME]); |
7640a5de LP |
97 | if (r < 0 && r != -ENOENT) |
98 | return r; | |
99 | ||
aa8fbc74 | 100 | r = parse_env_file(NULL, "/etc/machine-info", |
66a4c743 LP |
101 | "PRETTY_HOSTNAME", &c->data[PROP_PRETTY_HOSTNAME], |
102 | "ICON_NAME", &c->data[PROP_ICON_NAME], | |
103 | "CHASSIS", &c->data[PROP_CHASSIS], | |
799298d6 | 104 | "DEPLOYMENT", &c->data[PROP_DEPLOYMENT], |
13df9c39 | 105 | "LOCATION", &c->data[PROP_LOCATION]); |
7640a5de LP |
106 | if (r < 0 && r != -ENOENT) |
107 | return r; | |
108 | ||
d58ad743 LP |
109 | r = parse_os_release(NULL, |
110 | "PRETTY_NAME", &c->data[PROP_OS_PRETTY_NAME], | |
111 | "CPE_NAME", &c->data[PROP_OS_CPE_NAME], | |
112 | "HOME_URL", &c->data[PROP_HOME_URL], | |
113 | NULL); | |
44c32988 DH |
114 | if (r < 0 && r != -ENOENT) |
115 | return r; | |
116 | ||
21e627da | 117 | r = id128_read("/sys/class/dmi/id/product_uuid", ID128_UUID, &c->uuid); |
8fa0de65 DJL |
118 | if (r == -ENOENT) |
119 | r = id128_read("/sys/firmware/devicetree/base/vm,uuid", ID128_UUID, &c->uuid); | |
21e627da | 120 | if (r < 0) |
6839aa56 LP |
121 | log_full_errno(r == -ENOENT ? LOG_DEBUG : LOG_WARNING, r, |
122 | "Failed to read product UUID, ignoring: %m"); | |
123 | else if (sd_id128_is_null(c->uuid) || sd_id128_is_allf(c->uuid)) | |
124 | log_debug("DMI product UUID " SD_ID128_FORMAT_STR " is all 0x00 or all 0xFF, ignoring.", SD_ID128_FORMAT_VAL(c->uuid)); | |
125 | else | |
126 | c->has_uuid = true; | |
21e627da | 127 | |
7640a5de LP |
128 | return 0; |
129 | } | |
130 | ||
7871c8e9 | 131 | static bool valid_chassis(const char *chassis) { |
7871c8e9 LP |
132 | assert(chassis); |
133 | ||
134 | return nulstr_contains( | |
135 | "vm\0" | |
136 | "container\0" | |
137 | "desktop\0" | |
138 | "laptop\0" | |
34b52450 | 139 | "convertible\0" |
7871c8e9 LP |
140 | "server\0" |
141 | "tablet\0" | |
c49e59c1 | 142 | "handset\0" |
25fa306e LP |
143 | "watch\0" |
144 | "embedded\0", | |
7871c8e9 LP |
145 | chassis); |
146 | } | |
147 | ||
799298d6 JG |
148 | static bool valid_deployment(const char *deployment) { |
149 | assert(deployment); | |
150 | ||
c2142cf1 | 151 | return in_charset(deployment, VALID_DEPLOYMENT_CHARS); |
799298d6 JG |
152 | } |
153 | ||
7871c8e9 | 154 | static const char* fallback_chassis(void) { |
7640a5de LP |
155 | char *type; |
156 | unsigned t; | |
219bfe38 | 157 | int v, r; |
7871c8e9 | 158 | |
75f86906 | 159 | v = detect_virtualization(); |
75f86906 | 160 | if (VIRTUALIZATION_IS_VM(v)) |
7871c8e9 | 161 | return "vm"; |
75f86906 | 162 | if (VIRTUALIZATION_IS_CONTAINER(v)) |
7871c8e9 LP |
163 | return "container"; |
164 | ||
219bfe38 | 165 | r = read_one_line_file("/sys/class/dmi/id/chassis_type", &type); |
7871c8e9 | 166 | if (r < 0) |
219bfe38 | 167 | goto try_acpi; |
7871c8e9 LP |
168 | |
169 | r = safe_atou(type, &t); | |
170 | free(type); | |
171 | if (r < 0) | |
219bfe38 | 172 | goto try_acpi; |
7871c8e9 | 173 | |
219bfe38 LP |
174 | /* We only list the really obvious cases here. The DMI data is unreliable enough, so let's not do any |
175 | additional guesswork on top of that. | |
176 | ||
177 | See the SMBIOS Specification 3.0 section 7.4.1 for details about the values listed here: | |
178 | ||
179 | https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.0.0.pdf | |
7871c8e9 LP |
180 | */ |
181 | ||
219bfe38 | 182 | switch (t) { |
7871c8e9 | 183 | |
219bfe38 LP |
184 | case 0x3: /* Desktop */ |
185 | case 0x4: /* Low Profile Desktop */ | |
186 | case 0x6: /* Mini Tower */ | |
187 | case 0x7: /* Tower */ | |
7871c8e9 LP |
188 | return "desktop"; |
189 | ||
219bfe38 LP |
190 | case 0x8: /* Portable */ |
191 | case 0x9: /* Laptop */ | |
192 | case 0xA: /* Notebook */ | |
193 | case 0xE: /* Sub Notebook */ | |
7871c8e9 | 194 | return "laptop"; |
7640a5de | 195 | |
219bfe38 LP |
196 | case 0xB: /* Hand Held */ |
197 | return "handset"; | |
198 | ||
199 | case 0x11: /* Main Server Chassis */ | |
200 | case 0x1C: /* Blade */ | |
201 | case 0x1D: /* Blade Enclosure */ | |
7871c8e9 | 202 | return "server"; |
7640a5de | 203 | |
219bfe38 | 204 | case 0x1E: /* Tablet */ |
7871c8e9 | 205 | return "tablet"; |
b70af833 DH |
206 | |
207 | case 0x1F: /* Convertible */ | |
b4227dbb | 208 | case 0x20: /* Detachable */ |
b70af833 | 209 | return "convertible"; |
7871c8e9 LP |
210 | } |
211 | ||
219bfe38 LP |
212 | try_acpi: |
213 | r = read_one_line_file("/sys/firmware/acpi/pm_profile", &type); | |
7640a5de LP |
214 | if (r < 0) |
215 | return NULL; | |
216 | ||
217 | r = safe_atou(type, &t); | |
218 | free(type); | |
7640a5de LP |
219 | if (r < 0) |
220 | return NULL; | |
221 | ||
219bfe38 LP |
222 | /* We only list the really obvious cases here as the ACPI data is not really super reliable. |
223 | * | |
224 | * See the ACPI 5.0 Spec Section 5.2.9.1 for details: | |
225 | * | |
226 | * http://www.acpi.info/DOWNLOADS/ACPIspec50.pdf | |
41550d40 | 227 | */ |
7640a5de | 228 | |
219bfe38 | 229 | switch(t) { |
7640a5de | 230 | |
219bfe38 LP |
231 | case 1: /* Desktop */ |
232 | case 3: /* Workstation */ | |
233 | case 6: /* Appliance PC */ | |
7871c8e9 | 234 | return "desktop"; |
7640a5de | 235 | |
219bfe38 | 236 | case 2: /* Mobile */ |
7871c8e9 LP |
237 | return "laptop"; |
238 | ||
219bfe38 LP |
239 | case 4: /* Enterprise Server */ |
240 | case 5: /* SOHO Server */ | |
241 | case 7: /* Performance Server */ | |
7871c8e9 | 242 | return "server"; |
f3f4f008 | 243 | |
219bfe38 | 244 | case 8: /* Tablet */ |
f3f4f008 | 245 | return "tablet"; |
7640a5de LP |
246 | } |
247 | ||
7640a5de LP |
248 | return NULL; |
249 | } | |
250 | ||
66a4c743 | 251 | static char* context_fallback_icon_name(Context *c) { |
7871c8e9 LP |
252 | const char *chassis; |
253 | ||
66a4c743 LP |
254 | assert(c); |
255 | ||
256 | if (!isempty(c->data[PROP_CHASSIS])) | |
b910cc72 | 257 | return strjoin("computer-", c->data[PROP_CHASSIS]); |
7871c8e9 LP |
258 | |
259 | chassis = fallback_chassis(); | |
260 | if (chassis) | |
b910cc72 | 261 | return strjoin("computer-", chassis); |
7871c8e9 LP |
262 | |
263 | return strdup("computer"); | |
264 | } | |
265 | ||
c779a442 | 266 | static bool hostname_is_useful(const char *hn) { |
fecc80c1 | 267 | return !isempty(hn) && !is_localhost(hn); |
c779a442 SW |
268 | } |
269 | ||
270 | static int context_update_kernel_hostname(Context *c) { | |
271 | const char *static_hn; | |
7640a5de LP |
272 | const char *hn; |
273 | ||
66a4c743 LP |
274 | assert(c); |
275 | ||
c779a442 SW |
276 | static_hn = c->data[PROP_STATIC_HOSTNAME]; |
277 | ||
278 | /* /etc/hostname with something other than "localhost" | |
279 | * has the highest preference ... */ | |
280 | if (hostname_is_useful(static_hn)) | |
281 | hn = static_hn; | |
282 | ||
f7340ab2 | 283 | /* ... the transient host name, (ie: DHCP) comes next ... */ |
c779a442 | 284 | else if (!isempty(c->data[PROP_HOSTNAME])) |
66a4c743 | 285 | hn = c->data[PROP_HOSTNAME]; |
7640a5de | 286 | |
c779a442 SW |
287 | /* ... fallback to static "localhost.*" ignored above ... */ |
288 | else if (!isempty(static_hn)) | |
289 | hn = static_hn; | |
290 | ||
291 | /* ... and the ultimate fallback */ | |
292 | else | |
8146c32b | 293 | hn = FALLBACK_HOSTNAME; |
c779a442 | 294 | |
605f81a8 | 295 | if (sethostname_idempotent(hn) < 0) |
7640a5de LP |
296 | return -errno; |
297 | ||
7782e0a0 LP |
298 | (void) nscd_flush_cache(STRV_MAKE("hosts")); |
299 | ||
7640a5de LP |
300 | return 0; |
301 | } | |
302 | ||
66a4c743 | 303 | static int context_write_data_static_hostname(Context *c) { |
7640a5de | 304 | |
66a4c743 LP |
305 | assert(c); |
306 | ||
307 | if (isempty(c->data[PROP_STATIC_HOSTNAME])) { | |
7640a5de LP |
308 | |
309 | if (unlink("/etc/hostname") < 0) | |
310 | return errno == ENOENT ? 0 : -errno; | |
311 | ||
312 | return 0; | |
313 | } | |
66a4c743 | 314 | return write_string_file_atomic_label("/etc/hostname", c->data[PROP_STATIC_HOSTNAME]); |
7640a5de LP |
315 | } |
316 | ||
f200e8bb | 317 | static int context_write_data_machine_info(Context *c) { |
4f34ed54 | 318 | |
7640a5de LP |
319 | static const char * const name[_PROP_MAX] = { |
320 | [PROP_PRETTY_HOSTNAME] = "PRETTY_HOSTNAME", | |
7871c8e9 | 321 | [PROP_ICON_NAME] = "ICON_NAME", |
799298d6 JG |
322 | [PROP_CHASSIS] = "CHASSIS", |
323 | [PROP_DEPLOYMENT] = "DEPLOYMENT", | |
ce0f1493 | 324 | [PROP_LOCATION] = "LOCATION", |
7640a5de LP |
325 | }; |
326 | ||
0ccad099 | 327 | _cleanup_strv_free_ char **l = NULL; |
7640a5de LP |
328 | int r, p; |
329 | ||
66a4c743 LP |
330 | assert(c); |
331 | ||
aa8fbc74 | 332 | r = load_env_file(NULL, "/etc/machine-info", &l); |
7640a5de LP |
333 | if (r < 0 && r != -ENOENT) |
334 | return r; | |
335 | ||
ce0f1493 | 336 | for (p = PROP_PRETTY_HOSTNAME; p <= PROP_LOCATION; p++) { |
d77ab3f7 LP |
337 | _cleanup_free_ char *t = NULL; |
338 | char **u; | |
7640a5de LP |
339 | |
340 | assert(name[p]); | |
341 | ||
66a4c743 | 342 | if (isempty(c->data[p])) { |
f8440af5 | 343 | strv_env_unset(l, name[p]); |
7640a5de LP |
344 | continue; |
345 | } | |
346 | ||
605405c6 | 347 | t = strjoin(name[p], "=", c->data[p]); |
d77ab3f7 | 348 | if (!t) |
7640a5de | 349 | return -ENOMEM; |
7640a5de LP |
350 | |
351 | u = strv_env_set(l, t); | |
7640a5de LP |
352 | if (!u) |
353 | return -ENOMEM; | |
0ccad099 | 354 | |
130d3d22 | 355 | strv_free_and_replace(l, u); |
7640a5de LP |
356 | } |
357 | ||
358 | if (strv_isempty(l)) { | |
7640a5de LP |
359 | if (unlink("/etc/machine-info") < 0) |
360 | return errno == ENOENT ? 0 : -errno; | |
361 | ||
362 | return 0; | |
363 | } | |
364 | ||
0ccad099 | 365 | return write_env_file_label("/etc/machine-info", l); |
7640a5de LP |
366 | } |
367 | ||
66a4c743 LP |
368 | static int property_get_icon_name( |
369 | sd_bus *bus, | |
370 | const char *path, | |
371 | const char *interface, | |
372 | const char *property, | |
373 | sd_bus_message *reply, | |
ebcf1f97 LP |
374 | void *userdata, |
375 | sd_bus_error *error) { | |
7640a5de | 376 | |
66a4c743 LP |
377 | _cleanup_free_ char *n = NULL; |
378 | Context *c = userdata; | |
379 | const char *name; | |
7640a5de | 380 | |
66a4c743 LP |
381 | if (isempty(c->data[PROP_ICON_NAME])) |
382 | name = n = context_fallback_icon_name(c); | |
7640a5de | 383 | else |
66a4c743 LP |
384 | name = c->data[PROP_ICON_NAME]; |
385 | ||
386 | if (!name) | |
387 | return -ENOMEM; | |
7640a5de | 388 | |
ebcf1f97 | 389 | return sd_bus_message_append(reply, "s", name); |
7640a5de LP |
390 | } |
391 | ||
66a4c743 LP |
392 | static int property_get_chassis( |
393 | sd_bus *bus, | |
394 | const char *path, | |
395 | const char *interface, | |
396 | const char *property, | |
397 | sd_bus_message *reply, | |
ebcf1f97 LP |
398 | void *userdata, |
399 | sd_bus_error *error) { | |
7871c8e9 | 400 | |
66a4c743 LP |
401 | Context *c = userdata; |
402 | const char *name; | |
7871c8e9 | 403 | |
66a4c743 | 404 | if (isempty(c->data[PROP_CHASSIS])) |
7871c8e9 LP |
405 | name = fallback_chassis(); |
406 | else | |
66a4c743 | 407 | name = c->data[PROP_CHASSIS]; |
7871c8e9 | 408 | |
ebcf1f97 | 409 | return sd_bus_message_append(reply, "s", name); |
7871c8e9 LP |
410 | } |
411 | ||
19070062 | 412 | static int method_set_hostname(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
66a4c743 LP |
413 | Context *c = userdata; |
414 | const char *name; | |
102d8f81 | 415 | int interactive; |
66a4c743 | 416 | int r; |
d200735e | 417 | |
19070062 LP |
418 | assert(m); |
419 | assert(c); | |
420 | ||
66a4c743 LP |
421 | r = sd_bus_message_read(m, "sb", &name, &interactive); |
422 | if (r < 0) | |
ebcf1f97 | 423 | return r; |
d200735e | 424 | |
66a4c743 LP |
425 | if (isempty(name)) |
426 | name = c->data[PROP_STATIC_HOSTNAME]; | |
7640a5de | 427 | |
66a4c743 | 428 | if (isempty(name)) |
8146c32b | 429 | name = FALLBACK_HOSTNAME; |
7640a5de | 430 | |
8fb49443 | 431 | if (!hostname_is_valid(name, false)) |
ebcf1f97 | 432 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid hostname '%s'", name); |
7640a5de | 433 | |
66a4c743 | 434 | if (streq_ptr(name, c->data[PROP_HOSTNAME])) |
df2d202e | 435 | return sd_bus_reply_method_return(m, NULL); |
7640a5de | 436 | |
c529695e LP |
437 | r = bus_verify_polkit_async( |
438 | m, | |
439 | CAP_SYS_ADMIN, | |
440 | "org.freedesktop.hostname1.set-hostname", | |
403ed0e5 | 441 | NULL, |
c529695e LP |
442 | interactive, |
443 | UID_INVALID, | |
444 | &c->polkit_registry, | |
445 | error); | |
66a4c743 | 446 | if (r < 0) |
ebcf1f97 | 447 | return r; |
66a4c743 LP |
448 | if (r == 0) |
449 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
7640a5de | 450 | |
c650f207 YW |
451 | r = free_and_strdup(&c->data[PROP_HOSTNAME], name); |
452 | if (r < 0) | |
453 | return r; | |
7640a5de | 454 | |
c779a442 | 455 | r = context_update_kernel_hostname(c); |
66a4c743 | 456 | if (r < 0) { |
da927ba9 | 457 | log_error_errno(r, "Failed to set host name: %m"); |
1b4cd646 | 458 | return sd_bus_error_set_errnof(error, r, "Failed to set hostname: %m"); |
66a4c743 | 459 | } |
7640a5de | 460 | |
66a4c743 | 461 | log_info("Changed host name to '%s'", strna(c->data[PROP_HOSTNAME])); |
7640a5de | 462 | |
19070062 | 463 | (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), "/org/freedesktop/hostname1", "org.freedesktop.hostname1", "Hostname", NULL); |
7640a5de | 464 | |
df2d202e | 465 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 466 | } |
7640a5de | 467 | |
19070062 | 468 | static int method_set_static_hostname(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
66a4c743 LP |
469 | Context *c = userdata; |
470 | const char *name; | |
102d8f81 | 471 | int interactive; |
66a4c743 | 472 | int r; |
7640a5de | 473 | |
19070062 LP |
474 | assert(m); |
475 | assert(c); | |
476 | ||
66a4c743 LP |
477 | r = sd_bus_message_read(m, "sb", &name, &interactive); |
478 | if (r < 0) | |
ebcf1f97 | 479 | return r; |
7640a5de | 480 | |
3c6f7c34 | 481 | name = empty_to_null(name); |
7640a5de | 482 | |
66a4c743 | 483 | if (streq_ptr(name, c->data[PROP_STATIC_HOSTNAME])) |
df2d202e | 484 | return sd_bus_reply_method_return(m, NULL); |
7640a5de | 485 | |
c650f207 YW |
486 | if (!isempty(name) && !hostname_is_valid(name, false)) |
487 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid static hostname '%s'", name); | |
488 | ||
c529695e LP |
489 | r = bus_verify_polkit_async( |
490 | m, | |
491 | CAP_SYS_ADMIN, | |
492 | "org.freedesktop.hostname1.set-static-hostname", | |
403ed0e5 | 493 | NULL, |
c529695e LP |
494 | interactive, |
495 | UID_INVALID, | |
496 | &c->polkit_registry, | |
497 | error); | |
66a4c743 | 498 | if (r < 0) |
ebcf1f97 | 499 | return r; |
66a4c743 LP |
500 | if (r == 0) |
501 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
7640a5de | 502 | |
c650f207 YW |
503 | r = free_and_strdup(&c->data[PROP_STATIC_HOSTNAME], name); |
504 | if (r < 0) | |
505 | return r; | |
7640a5de | 506 | |
c779a442 SW |
507 | r = context_update_kernel_hostname(c); |
508 | if (r < 0) { | |
da927ba9 | 509 | log_error_errno(r, "Failed to set host name: %m"); |
1b4cd646 | 510 | return sd_bus_error_set_errnof(error, r, "Failed to set hostname: %m"); |
c779a442 SW |
511 | } |
512 | ||
66a4c743 LP |
513 | r = context_write_data_static_hostname(c); |
514 | if (r < 0) { | |
da927ba9 | 515 | log_error_errno(r, "Failed to write static host name: %m"); |
1b4cd646 | 516 | return sd_bus_error_set_errnof(error, r, "Failed to set static hostname: %m"); |
66a4c743 | 517 | } |
7640a5de | 518 | |
66a4c743 | 519 | log_info("Changed static host name to '%s'", strna(c->data[PROP_STATIC_HOSTNAME])); |
7640a5de | 520 | |
19070062 | 521 | (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), "/org/freedesktop/hostname1", "org.freedesktop.hostname1", "StaticHostname", NULL); |
7640a5de | 522 | |
df2d202e | 523 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 524 | } |
7640a5de | 525 | |
19070062 | 526 | static int set_machine_info(Context *c, sd_bus_message *m, int prop, sd_bus_message_handler_t cb, sd_bus_error *error) { |
102d8f81 | 527 | int interactive; |
66a4c743 LP |
528 | const char *name; |
529 | int r; | |
530 | ||
531 | assert(c); | |
66a4c743 LP |
532 | assert(m); |
533 | ||
534 | r = sd_bus_message_read(m, "sb", &name, &interactive); | |
535 | if (r < 0) | |
ebcf1f97 | 536 | return r; |
66a4c743 | 537 | |
3c6f7c34 | 538 | name = empty_to_null(name); |
66a4c743 LP |
539 | |
540 | if (streq_ptr(name, c->data[prop])) | |
df2d202e | 541 | return sd_bus_reply_method_return(m, NULL); |
7640a5de | 542 | |
c650f207 YW |
543 | if (!isempty(name)) { |
544 | /* The icon name might ultimately be used as file | |
545 | * name, so better be safe than sorry */ | |
546 | ||
547 | if (prop == PROP_ICON_NAME && !filename_is_valid(name)) | |
548 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid icon name '%s'", name); | |
549 | if (prop == PROP_PRETTY_HOSTNAME && string_has_cc(name, NULL)) | |
550 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid pretty host name '%s'", name); | |
551 | if (prop == PROP_CHASSIS && !valid_chassis(name)) | |
552 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid chassis '%s'", name); | |
553 | if (prop == PROP_DEPLOYMENT && !valid_deployment(name)) | |
554 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid deployment '%s'", name); | |
555 | if (prop == PROP_LOCATION && string_has_cc(name, NULL)) | |
556 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid location '%s'", name); | |
557 | } | |
558 | ||
66a4c743 LP |
559 | /* Since the pretty hostname should always be changed at the |
560 | * same time as the static one, use the same policy action for | |
561 | * both... */ | |
562 | ||
c529695e LP |
563 | r = bus_verify_polkit_async( |
564 | m, | |
565 | CAP_SYS_ADMIN, | |
566 | prop == PROP_PRETTY_HOSTNAME ? "org.freedesktop.hostname1.set-static-hostname" : "org.freedesktop.hostname1.set-machine-info", | |
403ed0e5 | 567 | NULL, |
c529695e LP |
568 | interactive, |
569 | UID_INVALID, | |
570 | &c->polkit_registry, | |
571 | error); | |
66a4c743 | 572 | if (r < 0) |
ebcf1f97 | 573 | return r; |
66a4c743 LP |
574 | if (r == 0) |
575 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
576 | ||
c650f207 YW |
577 | r = free_and_strdup(&c->data[prop], name); |
578 | if (r < 0) | |
579 | return r; | |
7640a5de | 580 | |
f200e8bb | 581 | r = context_write_data_machine_info(c); |
66a4c743 | 582 | if (r < 0) { |
da927ba9 | 583 | log_error_errno(r, "Failed to write machine info: %m"); |
1b4cd646 | 584 | return sd_bus_error_set_errnof(error, r, "Failed to write machine info: %m"); |
66a4c743 | 585 | } |
7640a5de | 586 | |
66a4c743 LP |
587 | log_info("Changed %s to '%s'", |
588 | prop == PROP_PRETTY_HOSTNAME ? "pretty host name" : | |
799298d6 | 589 | prop == PROP_DEPLOYMENT ? "deployment" : |
ce0f1493 | 590 | prop == PROP_LOCATION ? "location" : |
66a4c743 | 591 | prop == PROP_CHASSIS ? "chassis" : "icon name", strna(c->data[prop])); |
7640a5de | 592 | |
19070062 LP |
593 | (void) sd_bus_emit_properties_changed( |
594 | sd_bus_message_get_bus(m), | |
595 | "/org/freedesktop/hostname1", | |
596 | "org.freedesktop.hostname1", | |
597 | prop == PROP_PRETTY_HOSTNAME ? "PrettyHostname" : | |
598 | prop == PROP_DEPLOYMENT ? "Deployment" : | |
599 | prop == PROP_LOCATION ? "Location" : | |
600 | prop == PROP_CHASSIS ? "Chassis" : "IconName" , NULL); | |
7640a5de | 601 | |
df2d202e | 602 | return sd_bus_reply_method_return(m, NULL); |
66a4c743 | 603 | } |
7640a5de | 604 | |
19070062 LP |
605 | static int method_set_pretty_hostname(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
606 | return set_machine_info(userdata, m, PROP_PRETTY_HOSTNAME, method_set_pretty_hostname, error); | |
7640a5de LP |
607 | } |
608 | ||
19070062 LP |
609 | static int method_set_icon_name(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
610 | return set_machine_info(userdata, m, PROP_ICON_NAME, method_set_icon_name, error); | |
66a4c743 LP |
611 | } |
612 | ||
19070062 LP |
613 | static int method_set_chassis(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
614 | return set_machine_info(userdata, m, PROP_CHASSIS, method_set_chassis, error); | |
66a4c743 LP |
615 | } |
616 | ||
19070062 LP |
617 | static int method_set_deployment(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
618 | return set_machine_info(userdata, m, PROP_DEPLOYMENT, method_set_deployment, error); | |
799298d6 JG |
619 | } |
620 | ||
19070062 LP |
621 | static int method_set_location(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
622 | return set_machine_info(userdata, m, PROP_LOCATION, method_set_location, error); | |
ce0f1493 LP |
623 | } |
624 | ||
21e627da YW |
625 | static int method_get_product_uuid(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
626 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; | |
627 | Context *c = userdata; | |
628 | int interactive, r; | |
629 | ||
630 | assert(m); | |
631 | assert(c); | |
632 | ||
633 | if (!c->has_uuid) | |
634 | return sd_bus_error_set(error, BUS_ERROR_NO_PRODUCT_UUID, "Failed to read product UUID from /sys/class/dmi/id/product_uuid"); | |
635 | ||
636 | r = sd_bus_message_read(m, "b", &interactive); | |
637 | if (r < 0) | |
638 | return r; | |
639 | ||
640 | r = bus_verify_polkit_async( | |
641 | m, | |
642 | CAP_SYS_ADMIN, | |
643 | "org.freedesktop.hostname1.get-product-uuid", | |
644 | NULL, | |
645 | interactive, | |
646 | UID_INVALID, | |
647 | &c->polkit_registry, | |
648 | error); | |
649 | if (r < 0) | |
650 | return r; | |
651 | if (r == 0) | |
652 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
653 | ||
654 | r = sd_bus_message_new_method_return(m, &reply); | |
655 | if (r < 0) | |
656 | return r; | |
657 | ||
658 | r = sd_bus_message_append_array(reply, 'y', &c->uuid, sizeof(c->uuid)); | |
659 | if (r < 0) | |
660 | return r; | |
661 | ||
662 | return sd_bus_send(NULL, reply, NULL); | |
663 | } | |
664 | ||
66a4c743 LP |
665 | static const sd_bus_vtable hostname_vtable[] = { |
666 | SD_BUS_VTABLE_START(0), | |
caffbef6 | 667 | SD_BUS_PROPERTY("Hostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
66a4c743 LP |
668 | SD_BUS_PROPERTY("StaticHostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_STATIC_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
669 | SD_BUS_PROPERTY("PrettyHostname", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_PRETTY_HOSTNAME, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
670 | SD_BUS_PROPERTY("IconName", "s", property_get_icon_name, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
671 | SD_BUS_PROPERTY("Chassis", "s", property_get_chassis, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
ce0f1493 LP |
672 | SD_BUS_PROPERTY("Deployment", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_DEPLOYMENT, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
673 | SD_BUS_PROPERTY("Location", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_LOCATION, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
f426cc5d DH |
674 | SD_BUS_PROPERTY("KernelName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_NAME, SD_BUS_VTABLE_PROPERTY_CONST), |
675 | SD_BUS_PROPERTY("KernelRelease", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_RELEASE, SD_BUS_VTABLE_PROPERTY_CONST), | |
9be3455f | 676 | SD_BUS_PROPERTY("KernelVersion", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_KERNEL_VERSION, SD_BUS_VTABLE_PROPERTY_CONST), |
44c32988 DH |
677 | SD_BUS_PROPERTY("OperatingSystemPrettyName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_OS_PRETTY_NAME, SD_BUS_VTABLE_PROPERTY_CONST), |
678 | SD_BUS_PROPERTY("OperatingSystemCPEName", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_OS_CPE_NAME, SD_BUS_VTABLE_PROPERTY_CONST), | |
64928aa5 | 679 | SD_BUS_PROPERTY("HomeURL", "s", NULL, offsetof(Context, data) + sizeof(char*) * PROP_HOME_URL, SD_BUS_VTABLE_PROPERTY_CONST), |
adacb957 LP |
680 | SD_BUS_METHOD("SetHostname", "sb", NULL, method_set_hostname, SD_BUS_VTABLE_UNPRIVILEGED), |
681 | SD_BUS_METHOD("SetStaticHostname", "sb", NULL, method_set_static_hostname, SD_BUS_VTABLE_UNPRIVILEGED), | |
682 | SD_BUS_METHOD("SetPrettyHostname", "sb", NULL, method_set_pretty_hostname, SD_BUS_VTABLE_UNPRIVILEGED), | |
683 | SD_BUS_METHOD("SetIconName", "sb", NULL, method_set_icon_name, SD_BUS_VTABLE_UNPRIVILEGED), | |
684 | SD_BUS_METHOD("SetChassis", "sb", NULL, method_set_chassis, SD_BUS_VTABLE_UNPRIVILEGED), | |
799298d6 | 685 | SD_BUS_METHOD("SetDeployment", "sb", NULL, method_set_deployment, SD_BUS_VTABLE_UNPRIVILEGED), |
ce0f1493 | 686 | SD_BUS_METHOD("SetLocation", "sb", NULL, method_set_location, SD_BUS_VTABLE_UNPRIVILEGED), |
21e627da | 687 | SD_BUS_METHOD("GetProductUUID", "b", "ay", method_get_product_uuid, SD_BUS_VTABLE_UNPRIVILEGED), |
66a4c743 LP |
688 | SD_BUS_VTABLE_END, |
689 | }; | |
690 | ||
691 | static int connect_bus(Context *c, sd_event *event, sd_bus **_bus) { | |
4afd3348 | 692 | _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; |
7640a5de LP |
693 | int r; |
694 | ||
66a4c743 LP |
695 | assert(c); |
696 | assert(event); | |
d0baa06f LP |
697 | assert(_bus); |
698 | ||
76b54375 | 699 | r = sd_bus_default_system(&bus); |
23bbb0de MS |
700 | if (r < 0) |
701 | return log_error_errno(r, "Failed to get system bus connection: %m"); | |
d0baa06f | 702 | |
19befb2d | 703 | r = sd_bus_add_object_vtable(bus, NULL, "/org/freedesktop/hostname1", "org.freedesktop.hostname1", hostname_vtable, c); |
23bbb0de MS |
704 | if (r < 0) |
705 | return log_error_errno(r, "Failed to register object: %m"); | |
d0baa06f | 706 | |
0c0b9306 | 707 | r = sd_bus_request_name_async(bus, NULL, "org.freedesktop.hostname1", 0, NULL, NULL); |
23bbb0de | 708 | if (r < 0) |
0c0b9306 | 709 | return log_error_errno(r, "Failed to request name: %m"); |
add10b5a | 710 | |
66a4c743 | 711 | r = sd_bus_attach_event(bus, event, 0); |
23bbb0de MS |
712 | if (r < 0) |
713 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
d0baa06f | 714 | |
1cc6c93a | 715 | *_bus = TAKE_PTR(bus); |
d0baa06f | 716 | |
66a4c743 | 717 | return 0; |
d0baa06f LP |
718 | } |
719 | ||
85ae63ee YW |
720 | static int run(int argc, char *argv[]) { |
721 | _cleanup_(context_clear) Context context = {}; | |
4afd3348 LP |
722 | _cleanup_(sd_event_unrefp) sd_event *event = NULL; |
723 | _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; | |
d0baa06f | 724 | int r; |
d0baa06f | 725 | |
6bf3c61c | 726 | log_setup_service(); |
7640a5de | 727 | |
4c12626c | 728 | umask(0022); |
c3dacc8b | 729 | mac_selinux_init(); |
4c12626c | 730 | |
7640a5de LP |
731 | if (argc != 1) { |
732 | log_error("This program takes no arguments."); | |
85ae63ee | 733 | return -EINVAL; |
7640a5de LP |
734 | } |
735 | ||
b22c8bfc YW |
736 | assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0); |
737 | ||
afc6adb5 | 738 | r = sd_event_default(&event); |
85ae63ee YW |
739 | if (r < 0) |
740 | return log_error_errno(r, "Failed to allocate event loop: %m"); | |
7640a5de | 741 | |
b22c8bfc YW |
742 | (void) sd_event_set_watchdog(event, true); |
743 | ||
744 | r = sd_event_add_signal(event, NULL, SIGINT, NULL, NULL); | |
85ae63ee YW |
745 | if (r < 0) |
746 | return log_error_errno(r, "Failed to install SIGINT handler: %m"); | |
b22c8bfc YW |
747 | |
748 | r = sd_event_add_signal(event, NULL, SIGTERM, NULL, NULL); | |
85ae63ee YW |
749 | if (r < 0) |
750 | return log_error_errno(r, "Failed to install SIGTERM handler: %m"); | |
cde93897 | 751 | |
66a4c743 | 752 | r = connect_bus(&context, event, &bus); |
d0baa06f | 753 | if (r < 0) |
85ae63ee | 754 | return r; |
7640a5de | 755 | |
66a4c743 | 756 | r = context_read_data(&context); |
85ae63ee YW |
757 | if (r < 0) |
758 | return log_error_errno(r, "Failed to read hostname and machine information: %m"); | |
ad740100 | 759 | |
37224a5f | 760 | r = bus_event_loop_with_idle(event, bus, "org.freedesktop.hostname1", DEFAULT_EXIT_USEC, NULL, NULL); |
85ae63ee YW |
761 | if (r < 0) |
762 | return log_error_errno(r, "Failed to run event loop: %m"); | |
7640a5de | 763 | |
85ae63ee | 764 | return 0; |
7640a5de | 765 | } |
85ae63ee YW |
766 | |
767 | DEFINE_MAIN_FUNCTION(run); |