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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
dbc4fbae | 2 | |
dbc4fbae | 3 | #include <getopt.h> |
a9cdc94f | 4 | #include <locale.h> |
3f6fd1ba LP |
5 | #include <stdbool.h> |
6 | #include <stdlib.h> | |
dbc4fbae | 7 | #include <string.h> |
dbc4fbae | 8 | |
b028f3e4 | 9 | #include "sd-bus.h" |
958b66ea | 10 | #include "sd-id128.h" |
3f6fd1ba | 11 | |
b5efdb8a | 12 | #include "alloc-util.h" |
3f6fd1ba | 13 | #include "architecture.h" |
b028f3e4 | 14 | #include "bus-error.h" |
3f6fd1ba LP |
15 | #include "bus-util.h" |
16 | #include "hostname-util.h" | |
5e332028 | 17 | #include "main-func.h" |
294bf0c3 | 18 | #include "pretty-print.h" |
dbc4fbae | 19 | #include "spawn-polkit-agent.h" |
ce2529b4 | 20 | #include "terminal-util.h" |
3f6fd1ba | 21 | #include "util.h" |
f46bc484 | 22 | #include "verbs.h" |
dbc4fbae | 23 | |
dbc4fbae | 24 | static bool arg_ask_password = true; |
b028f3e4 | 25 | static BusTransport arg_transport = BUS_TRANSPORT_LOCAL; |
7085053a | 26 | static char *arg_host = NULL; |
960787ae ZJS |
27 | static bool arg_transient = false; |
28 | static bool arg_pretty = false; | |
29 | static bool arg_static = false; | |
dbc4fbae | 30 | |
dbc4fbae | 31 | typedef struct StatusInfo { |
f37f8a61 YW |
32 | const char *hostname; |
33 | const char *static_hostname; | |
34 | const char *pretty_hostname; | |
35 | const char *icon_name; | |
36 | const char *chassis; | |
37 | const char *deployment; | |
38 | const char *location; | |
39 | const char *kernel_name; | |
40 | const char *kernel_release; | |
41 | const char *os_pretty_name; | |
42 | const char *os_cpe_name; | |
43 | const char *virtualization; | |
44 | const char *architecture; | |
87adb0db | 45 | const char *home_url; |
dbc4fbae LP |
46 | } StatusInfo; |
47 | ||
48 | static void print_status_info(StatusInfo *i) { | |
39883f62 | 49 | sd_id128_t mid = {}, bid = {}; |
dbc4fbae | 50 | int r; |
dbc4fbae LP |
51 | |
52 | assert(i); | |
53 | ||
e9a2e453 | 54 | printf(" Static hostname: %s\n", strna(i->static_hostname)); |
dbc4fbae | 55 | |
c0b21b96 LP |
56 | if (!isempty(i->pretty_hostname) && |
57 | !streq_ptr(i->pretty_hostname, i->static_hostname)) | |
e9a2e453 | 58 | printf(" Pretty hostname: %s\n", i->pretty_hostname); |
c0b21b96 LP |
59 | |
60 | if (!isempty(i->hostname) && | |
61 | !streq_ptr(i->hostname, i->static_hostname)) | |
e9a2e453 | 62 | printf("Transient hostname: %s\n", i->hostname); |
dbc4fbae | 63 | |
41414fed LP |
64 | if (!isempty(i->icon_name)) |
65 | printf(" Icon name: %s\n", | |
66 | strna(i->icon_name)); | |
67 | ||
68 | if (!isempty(i->chassis)) | |
69 | printf(" Chassis: %s\n", | |
70 | strna(i->chassis)); | |
71 | ||
72 | if (!isempty(i->deployment)) | |
73 | printf(" Deployment: %s\n", i->deployment); | |
74 | ||
75 | if (!isempty(i->location)) | |
76 | printf(" Location: %s\n", i->location); | |
dbc4fbae LP |
77 | |
78 | r = sd_id128_get_machine(&mid); | |
79 | if (r >= 0) | |
80 | printf(" Machine ID: " SD_ID128_FORMAT_STR "\n", SD_ID128_FORMAT_VAL(mid)); | |
81 | ||
82 | r = sd_id128_get_boot(&bid); | |
83 | if (r >= 0) | |
84 | printf(" Boot ID: " SD_ID128_FORMAT_STR "\n", SD_ID128_FORMAT_VAL(bid)); | |
85 | ||
e9a2e453 LP |
86 | if (!isempty(i->virtualization)) |
87 | printf(" Virtualization: %s\n", i->virtualization); | |
fe29f9d2 | 88 | |
87adb0db LP |
89 | if (!isempty(i->os_pretty_name)) { |
90 | _cleanup_free_ char *formatted = NULL; | |
91 | const char *t = i->os_pretty_name; | |
92 | ||
93 | if (i->home_url) { | |
94 | if (terminal_urlify(i->home_url, i->os_pretty_name, &formatted) >= 0) | |
95 | t = formatted; | |
96 | } | |
97 | ||
98 | printf(" Operating System: %s\n", t); | |
99 | } | |
fe29f9d2 | 100 | |
3448456b DH |
101 | if (!isempty(i->os_cpe_name)) |
102 | printf(" CPE OS Name: %s\n", i->os_cpe_name); | |
fe29f9d2 | 103 | |
fa4f8f9b DH |
104 | if (!isempty(i->kernel_name) && !isempty(i->kernel_release)) |
105 | printf(" Kernel: %s %s\n", i->kernel_name, i->kernel_release); | |
e9a2e453 LP |
106 | |
107 | if (!isempty(i->architecture)) | |
108 | printf(" Architecture: %s\n", i->architecture); | |
fe29f9d2 | 109 | |
dbc4fbae LP |
110 | } |
111 | ||
b028f3e4 | 112 | static int show_one_name(sd_bus *bus, const char* attr) { |
4afd3348 LP |
113 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
114 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; | |
b028f3e4 | 115 | const char *s; |
960787ae ZJS |
116 | int r; |
117 | ||
b028f3e4 | 118 | r = sd_bus_get_property( |
960787ae ZJS |
119 | bus, |
120 | "org.freedesktop.hostname1", | |
121 | "/org/freedesktop/hostname1", | |
b028f3e4 SP |
122 | "org.freedesktop.hostname1", |
123 | attr, | |
124 | &error, &reply, "s"); | |
f9e0eefc LP |
125 | if (r < 0) |
126 | return log_error_errno(r, "Could not get property: %s", bus_error_message(&error, r)); | |
960787ae | 127 | |
b028f3e4 SP |
128 | r = sd_bus_message_read(reply, "s", &s); |
129 | if (r < 0) | |
5b30bef8 | 130 | return bus_log_parse_error(r); |
960787ae | 131 | |
960787ae ZJS |
132 | printf("%s\n", s); |
133 | ||
134 | return 0; | |
135 | } | |
136 | ||
f9e0eefc | 137 | static int show_all_names(sd_bus *bus, sd_bus_error *error) { |
b92bea5d | 138 | StatusInfo info = {}; |
e9a2e453 LP |
139 | |
140 | static const struct bus_properties_map hostname_map[] = { | |
41414fed LP |
141 | { "Hostname", "s", NULL, offsetof(StatusInfo, hostname) }, |
142 | { "StaticHostname", "s", NULL, offsetof(StatusInfo, static_hostname) }, | |
143 | { "PrettyHostname", "s", NULL, offsetof(StatusInfo, pretty_hostname) }, | |
144 | { "IconName", "s", NULL, offsetof(StatusInfo, icon_name) }, | |
145 | { "Chassis", "s", NULL, offsetof(StatusInfo, chassis) }, | |
146 | { "Deployment", "s", NULL, offsetof(StatusInfo, deployment) }, | |
147 | { "Location", "s", NULL, offsetof(StatusInfo, location) }, | |
148 | { "KernelName", "s", NULL, offsetof(StatusInfo, kernel_name) }, | |
149 | { "KernelRelease", "s", NULL, offsetof(StatusInfo, kernel_release) }, | |
150 | { "OperatingSystemPrettyName", "s", NULL, offsetof(StatusInfo, os_pretty_name) }, | |
151 | { "OperatingSystemCPEName", "s", NULL, offsetof(StatusInfo, os_cpe_name) }, | |
87adb0db | 152 | { "HomeURL", "s", NULL, offsetof(StatusInfo, home_url) }, |
b028f3e4 SP |
153 | {} |
154 | }; | |
e9a2e453 LP |
155 | |
156 | static const struct bus_properties_map manager_map[] = { | |
41414fed LP |
157 | { "Virtualization", "s", NULL, offsetof(StatusInfo, virtualization) }, |
158 | { "Architecture", "s", NULL, offsetof(StatusInfo, architecture) }, | |
e9a2e453 LP |
159 | {} |
160 | }; | |
161 | ||
f37f8a61 | 162 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *host_message = NULL, *manager_message = NULL; |
b028f3e4 | 163 | int r; |
dbc4fbae | 164 | |
b028f3e4 SP |
165 | r = bus_map_all_properties(bus, |
166 | "org.freedesktop.hostname1", | |
167 | "/org/freedesktop/hostname1", | |
e9a2e453 | 168 | hostname_map, |
a7e4861c | 169 | 0, |
f9e0eefc | 170 | error, |
f37f8a61 | 171 | &host_message, |
9f6eb1cd | 172 | &info); |
dbc4fbae | 173 | if (r < 0) |
f37f8a61 | 174 | return r; |
dbc4fbae | 175 | |
f37f8a61 YW |
176 | r = bus_map_all_properties(bus, |
177 | "org.freedesktop.systemd1", | |
178 | "/org/freedesktop/systemd1", | |
179 | manager_map, | |
a7e4861c | 180 | 0, |
f37f8a61 YW |
181 | error, |
182 | &manager_message, | |
183 | &info); | |
e9a2e453 | 184 | |
dbc4fbae | 185 | print_status_info(&info); |
b028f3e4 | 186 | |
e9a2e453 | 187 | return r; |
dbc4fbae LP |
188 | } |
189 | ||
f46bc484 YW |
190 | static int show_status(int argc, char **argv, void *userdata) { |
191 | sd_bus *bus = userdata; | |
f9e0eefc LP |
192 | int r; |
193 | ||
960787ae ZJS |
194 | if (arg_pretty || arg_static || arg_transient) { |
195 | const char *attr; | |
196 | ||
197 | if (!!arg_static + !!arg_pretty + !!arg_transient > 1) { | |
198 | log_error("Cannot query more than one name type at a time"); | |
199 | return -EINVAL; | |
200 | } | |
201 | ||
202 | attr = arg_pretty ? "PrettyHostname" : | |
203 | arg_static ? "StaticHostname" : "Hostname"; | |
204 | ||
205 | return show_one_name(bus, attr); | |
f9e0eefc LP |
206 | } else { |
207 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; | |
208 | ||
209 | r = show_all_names(bus, &error); | |
210 | if (r < 0) | |
211 | return log_error_errno(r, "Failed to query system properties: %s", bus_error_message(&error, r)); | |
212 | ||
213 | return 0; | |
214 | } | |
960787ae ZJS |
215 | } |
216 | ||
b028f3e4 | 217 | static int set_simple_string(sd_bus *bus, const char *method, const char *value) { |
4afd3348 | 218 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
b028f3e4 SP |
219 | int r = 0; |
220 | ||
8a4b13c5 | 221 | polkit_agent_open_if_enabled(arg_transport, arg_ask_password); |
b028f3e4 SP |
222 | |
223 | r = sd_bus_call_method( | |
224 | bus, | |
225 | "org.freedesktop.hostname1", | |
226 | "/org/freedesktop/hostname1", | |
227 | "org.freedesktop.hostname1", | |
228 | method, | |
229 | &error, NULL, | |
230 | "sb", value, arg_ask_password); | |
231 | if (r < 0) | |
4ae25393 YW |
232 | return log_error_errno(r, "Could not set property: %s", bus_error_message(&error, -r)); |
233 | ||
234 | return 0; | |
b028f3e4 SP |
235 | } |
236 | ||
f46bc484 | 237 | static int set_hostname(int argc, char **argv, void *userdata) { |
dbc4fbae | 238 | _cleanup_free_ char *h = NULL; |
f46bc484 YW |
239 | const char *hostname = argv[1]; |
240 | sd_bus *bus = userdata; | |
dbc4fbae LP |
241 | int r; |
242 | ||
960787ae ZJS |
243 | if (!arg_pretty && !arg_static && !arg_transient) |
244 | arg_pretty = arg_static = arg_transient = true; | |
245 | ||
246 | if (arg_pretty) { | |
fda2c5d2 LP |
247 | const char *p; |
248 | ||
2ae0858e LP |
249 | /* If the passed hostname is already valid, then assume the user doesn't know anything about pretty |
250 | * hostnames, so let's unset the pretty hostname, and just set the passed hostname as static/dynamic | |
fda2c5d2 | 251 | * hostname. */ |
2ae0858e LP |
252 | if (arg_static && hostname_is_valid(hostname, true)) |
253 | p = ""; /* No pretty hostname (as it is redundant), just a static one */ | |
254 | else | |
255 | p = hostname; /* Use the passed name as pretty hostname */ | |
fda2c5d2 | 256 | |
b028f3e4 | 257 | r = set_simple_string(bus, "SetPrettyHostname", p); |
dbc4fbae LP |
258 | if (r < 0) |
259 | return r; | |
2ae0858e LP |
260 | |
261 | /* Now that we set the pretty hostname, let's clean up the parameter and use that as static | |
262 | * hostname. If the hostname was already valid as static hostname, this will only chop off the trailing | |
263 | * dot if there is one. If it was not valid, then it will be made fully valid by truncating, dropping | |
629ff674 | 264 | * multiple dots, and dropping weird chars. Note that we clean the name up only if we also are |
2ae0858e LP |
265 | * supposed to set the pretty name. If the pretty name is not being set we assume the user knows what |
266 | * he does and pass the name as-is. */ | |
267 | h = strdup(hostname); | |
268 | if (!h) | |
269 | return log_oom(); | |
270 | ||
271 | hostname = hostname_cleanup(h); /* Use the cleaned up name as static hostname */ | |
dbc4fbae LP |
272 | } |
273 | ||
960787ae | 274 | if (arg_static) { |
b028f3e4 | 275 | r = set_simple_string(bus, "SetStaticHostname", hostname); |
dbc4fbae LP |
276 | if (r < 0) |
277 | return r; | |
278 | } | |
279 | ||
960787ae | 280 | if (arg_transient) { |
b028f3e4 | 281 | r = set_simple_string(bus, "SetHostname", hostname); |
dbc4fbae LP |
282 | if (r < 0) |
283 | return r; | |
284 | } | |
285 | ||
286 | return 0; | |
287 | } | |
288 | ||
f46bc484 YW |
289 | static int set_icon_name(int argc, char **argv, void *userdata) { |
290 | return set_simple_string(userdata, "SetIconName", argv[1]); | |
dbc4fbae LP |
291 | } |
292 | ||
f46bc484 YW |
293 | static int set_chassis(int argc, char **argv, void *userdata) { |
294 | return set_simple_string(userdata, "SetChassis", argv[1]); | |
7871c8e9 LP |
295 | } |
296 | ||
f46bc484 YW |
297 | static int set_deployment(int argc, char **argv, void *userdata) { |
298 | return set_simple_string(userdata, "SetDeployment", argv[1]); | |
799298d6 JG |
299 | } |
300 | ||
f46bc484 YW |
301 | static int set_location(int argc, char **argv, void *userdata) { |
302 | return set_simple_string(userdata, "SetLocation", argv[1]); | |
41414fed LP |
303 | } |
304 | ||
f46bc484 | 305 | static int help(void) { |
37ec0fdd LP |
306 | _cleanup_free_ char *link = NULL; |
307 | int r; | |
308 | ||
309 | r = terminal_urlify_man("hostnamectl", "1", &link); | |
310 | if (r < 0) | |
311 | return log_oom(); | |
312 | ||
353b2baa LP |
313 | printf("%s [OPTIONS...] COMMAND ...\n\n" |
314 | "%sQuery or change system hostname.%s\n" | |
e1fac8a6 ZJS |
315 | "\nCommands:\n" |
316 | " status Show current hostname settings\n" | |
317 | " set-hostname NAME Set system hostname\n" | |
318 | " set-icon-name NAME Set icon name for host\n" | |
319 | " set-chassis NAME Set chassis type for host\n" | |
320 | " set-deployment NAME Set deployment environment for host\n" | |
321 | " set-location NAME Set location for host\n" | |
322 | "\nOptions:\n" | |
dbc4fbae LP |
323 | " -h --help Show this help\n" |
324 | " --version Show package version\n" | |
7591abd4 | 325 | " --no-ask-password Do not prompt for password\n" |
b028f3e4 | 326 | " -H --host=[USER@]HOST Operate on remote host\n" |
a86a47ce LP |
327 | " -M --machine=CONTAINER Operate on local container\n" |
328 | " --transient Only set transient hostname\n" | |
329 | " --static Only set static hostname\n" | |
e1fac8a6 | 330 | " --pretty Only set pretty hostname\n" |
37ec0fdd LP |
331 | "\nSee the %s for details.\n" |
332 | , program_invocation_short_name | |
353b2baa | 333 | , ansi_highlight() |
ce2529b4 | 334 | , ansi_normal() |
37ec0fdd LP |
335 | , link |
336 | ); | |
f46bc484 YW |
337 | |
338 | return 0; | |
339 | } | |
340 | ||
341 | static int verb_help(int argc, char **argv, void *userdata) { | |
342 | return help(); | |
dbc4fbae LP |
343 | } |
344 | ||
345 | static int parse_argv(int argc, char *argv[]) { | |
346 | ||
347 | enum { | |
348 | ARG_VERSION = 0x100, | |
349 | ARG_NO_ASK_PASSWORD, | |
960787ae ZJS |
350 | ARG_TRANSIENT, |
351 | ARG_STATIC, | |
352 | ARG_PRETTY | |
dbc4fbae LP |
353 | }; |
354 | ||
355 | static const struct option options[] = { | |
356 | { "help", no_argument, NULL, 'h' }, | |
357 | { "version", no_argument, NULL, ARG_VERSION }, | |
eb9da376 LP |
358 | { "transient", no_argument, NULL, ARG_TRANSIENT }, |
359 | { "static", no_argument, NULL, ARG_STATIC }, | |
360 | { "pretty", no_argument, NULL, ARG_PRETTY }, | |
dbc4fbae | 361 | { "host", required_argument, NULL, 'H' }, |
b028f3e4 | 362 | { "machine", required_argument, NULL, 'M' }, |
dbc4fbae | 363 | { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD }, |
eb9da376 | 364 | {} |
dbc4fbae LP |
365 | }; |
366 | ||
367 | int c; | |
368 | ||
369 | assert(argc >= 0); | |
370 | assert(argv); | |
371 | ||
601185b4 | 372 | while ((c = getopt_long(argc, argv, "hH:M:", options, NULL)) >= 0) |
dbc4fbae LP |
373 | |
374 | switch (c) { | |
375 | ||
376 | case 'h': | |
f46bc484 | 377 | return help(); |
dbc4fbae LP |
378 | |
379 | case ARG_VERSION: | |
3f6fd1ba | 380 | return version(); |
dbc4fbae | 381 | |
b028f3e4 SP |
382 | case 'H': |
383 | arg_transport = BUS_TRANSPORT_REMOTE; | |
384 | arg_host = optarg; | |
dbc4fbae LP |
385 | break; |
386 | ||
b028f3e4 | 387 | case 'M': |
de33fc62 | 388 | arg_transport = BUS_TRANSPORT_MACHINE; |
b028f3e4 | 389 | arg_host = optarg; |
dbc4fbae LP |
390 | break; |
391 | ||
960787ae ZJS |
392 | case ARG_TRANSIENT: |
393 | arg_transient = true; | |
dbc4fbae LP |
394 | break; |
395 | ||
960787ae ZJS |
396 | case ARG_PRETTY: |
397 | arg_pretty = true; | |
dbc4fbae LP |
398 | break; |
399 | ||
960787ae ZJS |
400 | case ARG_STATIC: |
401 | arg_static = true; | |
dbc4fbae LP |
402 | break; |
403 | ||
59f432ea LP |
404 | case ARG_NO_ASK_PASSWORD: |
405 | arg_ask_password = false; | |
406 | break; | |
407 | ||
dbc4fbae LP |
408 | case '?': |
409 | return -EINVAL; | |
410 | ||
411 | default: | |
eb9da376 | 412 | assert_not_reached("Unhandled option"); |
dbc4fbae | 413 | } |
dbc4fbae | 414 | |
dbc4fbae LP |
415 | return 1; |
416 | } | |
417 | ||
b028f3e4 | 418 | static int hostnamectl_main(sd_bus *bus, int argc, char *argv[]) { |
dbc4fbae | 419 | |
f46bc484 YW |
420 | static const Verb verbs[] = { |
421 | { "status", VERB_ANY, 1, VERB_DEFAULT, show_status }, | |
422 | { "set-hostname", 2, 2, 0, set_hostname }, | |
423 | { "set-icon-name", 2, 2, 0, set_icon_name }, | |
424 | { "set-chassis", 2, 2, 0, set_chassis }, | |
425 | { "set-deployment", 2, 2, 0, set_deployment }, | |
426 | { "set-location", 2, 2, 0, set_location }, | |
427 | { "help", VERB_ANY, VERB_ANY, 0, verb_help }, /* Not documented, but supported since it is created. */ | |
428 | {} | |
dbc4fbae LP |
429 | }; |
430 | ||
f46bc484 | 431 | return dispatch_verb(argc, argv, verbs, bus); |
dbc4fbae LP |
432 | } |
433 | ||
43ead411 | 434 | static int run(int argc, char *argv[]) { |
4afd3348 | 435 | _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; |
84f6181c | 436 | int r; |
dbc4fbae | 437 | |
a9cdc94f | 438 | setlocale(LC_ALL, ""); |
1a043959 | 439 | log_show_color(true); |
dbc4fbae LP |
440 | log_parse_environment(); |
441 | log_open(); | |
442 | ||
443 | r = parse_argv(argc, argv); | |
b028f3e4 | 444 | if (r <= 0) |
43ead411 | 445 | return r; |
b028f3e4 | 446 | |
266f3e26 | 447 | r = bus_connect_transport(arg_transport, arg_host, false, &bus); |
43ead411 ZJS |
448 | if (r < 0) |
449 | return log_error_errno(r, "Failed to create bus connection: %m"); | |
dbc4fbae | 450 | |
43ead411 | 451 | return hostnamectl_main(bus, argc, argv); |
dbc4fbae | 452 | } |
43ead411 ZJS |
453 | |
454 | DEFINE_MAIN_FUNCTION(run); |