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[systemd.git] / src / run / run.c
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52ad194e 1/* SPDX-License-Identifier: LGPL-2.1+ */
14228c0d 2
14228c0d 3#include <getopt.h>
6300502b 4#include <stdio.h>
bb4f798a
MB		 5#include <fcntl.h>
6#include <sys/stat.h>
7#include <sys/types.h>
14228c0d
MB		 8
9#include "sd-bus.h"
e735f4d4 10#include "sd-event.h"
6300502b 11
db2df898 12#include "alloc-util.h"
6300502b 13#include "bus-error.h"
aa27b158 14#include "bus-unit-util.h"
60f067b4 15#include "bus-util.h"
bb4f798a 16#include "bus-wait-for-jobs.h"
6300502b 17#include "calendarspec.h"
60f067b4 18#include "env-util.h"
db2df898 19#include "fd-util.h"
2897b343 20#include "format-util.h"
6e866b33 21#include "main-func.h"
db2df898 22#include "parse-util.h"
14228c0d 23#include "path-util.h"
6e866b33 24#include "pretty-print.h"
8a584da2 25#include "process-util.h"
e735f4d4 26#include "ptyfwd.h"
86f210e9 27#include "signal-util.h"
d9dfd233 28#include "spawn-polkit-agent.h"
6300502b 29#include "strv.h"
db2df898 30#include "terminal-util.h"
1d42b86d 31#include "unit-def.h"
6300502b 32#include "unit-name.h"
db2df898 33#include "user-util.h"
14228c0d 34
d9dfd233 35static bool arg_ask_password = true;
14228c0d 36static bool arg_scope = false;
14228c0d 37static bool arg_remain_after_exit = false;
e3bff60a 38static bool arg_no_block = false;
8a584da2 39static bool arg_wait = false;
14228c0d
MB		 40static const char *arg_unit = NULL;
41static const char *arg_description = NULL;
42static const char *arg_slice = NULL;
43static bool arg_send_sighup = false;
60f067b4
JS		 44static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
45static const char *arg_host = NULL;
46static bool arg_user = false;
47static const char *arg_service_type = NULL;
48static const char *arg_exec_user = NULL;
49static const char *arg_exec_group = NULL;
50static int arg_nice = 0;
51static bool arg_nice_set = false;
52static char **arg_environment = NULL;
53static char **arg_property = NULL;
f5e65279
MB		 54static enum {
55 ARG_STDIO_NONE, /* The default, as it is for normal services, stdin connected to /dev/null, and stdout+stderr to the journal */
56 ARG_STDIO_PTY, /* Interactive behaviour, requested by --pty: we allocate a pty and connect it to the TTY we are invoked from */
57 ARG_STDIO_DIRECT, /* Directly pass our stdin/stdout/stderr to the activated service, useful for usage in shell pipelines, requested by --pipe */
58 ARG_STDIO_AUTO, /* If --pipe and --pty are used together we use --pty when invoked on a TTY, and --pipe otherwise */
59} arg_stdio = ARG_STDIO_NONE;
1d42b86d
MB		 60static char **arg_path_property = NULL;
61static char **arg_socket_property = NULL;
f47781d8 62static char **arg_timer_property = NULL;
bb4f798a 63static bool arg_with_timer = false;
e735f4d4 64static bool arg_quiet = false;
52ad194e 65static bool arg_aggressive_gc = false;
6e866b33
MB		 66static char *arg_working_directory = NULL;
67static bool arg_shell = false;
68static char **arg_cmdline = NULL;
69
70STATIC_DESTRUCTOR_REGISTER(arg_environment, strv_freep);
71STATIC_DESTRUCTOR_REGISTER(arg_property, strv_freep);
72STATIC_DESTRUCTOR_REGISTER(arg_path_property, strv_freep);
73STATIC_DESTRUCTOR_REGISTER(arg_socket_property, strv_freep);
74STATIC_DESTRUCTOR_REGISTER(arg_timer_property, strv_freep);
75STATIC_DESTRUCTOR_REGISTER(arg_working_directory, freep);
76STATIC_DESTRUCTOR_REGISTER(arg_cmdline, strv_freep);
77
78static int help(void) {
79 _cleanup_free_ char *link = NULL;
80 int r;
81
82 r = terminal_urlify_man("systemd-run", "1", &link);
83 if (r < 0)
84 return log_oom();
d9dfd233 85
f47781d8 86 printf("%s [OPTIONS...] {COMMAND} [ARGS...]\n\n"
8a584da2 87 "Run the specified command in a transient scope or service.\n\n"
f47781d8
MP		 88 " -h --help Show this help\n"
89 " --version Show package version\n"
d9dfd233 90 " --no-ask-password Do not prompt for password\n"
f47781d8
MP		 91 " --user Run as user unit\n"
92 " -H --host=[USER@]HOST Operate on remote host\n"
93 " -M --machine=CONTAINER Operate on local container\n"
94 " --scope Run this as scope rather than service\n"
95 " --unit=UNIT Run under the specified unit name\n"
8a584da2 96 " -p --property=NAME=VALUE Set service or scope unit property\n"
f47781d8
MP		 97 " --description=TEXT Description for unit\n"
98 " --slice=SLICE Run in the specified slice\n"
e3bff60a 99 " --no-block Do not wait until operation finished\n"
f47781d8 100 " -r --remain-after-exit Leave service around until explicitly stopped\n"
8a584da2 101 " --wait Wait until service stopped again\n"
f47781d8
MP		 102 " --send-sighup Send SIGHUP when terminating\n"
103 " --service-type=TYPE Service type\n"
104 " --uid=USER Run as system user\n"
105 " --gid=GROUP Run as system group\n"
106 " --nice=NICE Nice level\n"
6e866b33
MB		 107 " --working-directory=PATH Set working directory\n"
108 " -d --same-dir Inherit working directory from caller\n"
aa27b158 109 " -E --setenv=NAME=VALUE Set environment\n"
f5e65279
MB		 110 " -t --pty Run service on pseudo TTY as STDIN/STDOUT/\n"
111 " STDERR\n"
112 " -P --pipe Pass STDIN/STDOUT/STDERR directly to service\n"
52ad194e 113 " -q --quiet Suppress information messages during runtime\n"
6e866b33
MB		 114 " -G --collect Unload unit after it ran, even when failed\n"
115 " -S --shell Invoke a $SHELL interactively\n\n"
1d42b86d
MB		 116 "Path options:\n"
117 " --path-property=NAME=VALUE Set path unit property\n\n"
118 "Socket options:\n"
119 " --socket-property=NAME=VALUE Set socket unit property\n\n"
8a584da2 120 "Timer options:\n"
e735f4d4
MP		 121 " --on-active=SECONDS Run after SECONDS delay\n"
122 " --on-boot=SECONDS Run SECONDS after machine was booted up\n"
123 " --on-startup=SECONDS Run SECONDS after systemd activation\n"
124 " --on-unit-active=SECONDS Run SECONDS after the last activation\n"
125 " --on-unit-inactive=SECONDS Run SECONDS after the last deactivation\n"
f47781d8 126 " --on-calendar=SPEC Realtime timer\n"
bb4f798a
MB		 127 " --on-timezone-change Run when the timezone changes\n"
128 " --on-clock-change Run when the realtime clock jumps\n"
8a584da2 129 " --timer-property=NAME=VALUE Set timer unit property\n"
6e866b33
MB		 130 "\nSee the %s for details.\n"
131 , program_invocation_short_name
132 , link
133 );
134
135 return 0;
14228c0d
MB		 136}
137
52ad194e 138static int add_timer_property(const char *name, const char *val) {
1d42b86d 139 char *p;
52ad194e
MB		 140
141 assert(name);
142 assert(val);
143
144 p = strjoin(name, "=", val);
145 if (!p)
146 return log_oom();
147
148 if (strv_consume(&arg_timer_property, p) < 0)
149 return log_oom();
150
52ad194e 151 return 0;
f47781d8
MP		 152}
153
14228c0d
MB		 154static int parse_argv(int argc, char *argv[]) {
155
156 enum {
157 ARG_VERSION = 0x100,
158 ARG_USER,
60f067b4 159 ARG_SYSTEM,
14228c0d
MB		 160 ARG_SCOPE,
161 ARG_UNIT,
162 ARG_DESCRIPTION,
163 ARG_SLICE,
164 ARG_SEND_SIGHUP,
aa27b158 165 ARG_SERVICE_TYPE,
60f067b4
JS		 166 ARG_EXEC_USER,
167 ARG_EXEC_GROUP,
60f067b4 168 ARG_NICE,
f47781d8
MP		 169 ARG_ON_ACTIVE,
170 ARG_ON_BOOT,
171 ARG_ON_STARTUP,
172 ARG_ON_UNIT_ACTIVE,
173 ARG_ON_UNIT_INACTIVE,
174 ARG_ON_CALENDAR,
bb4f798a
MB		 175 ARG_ON_TIMEZONE_CHANGE,
176 ARG_ON_CLOCK_CHANGE,
e3bff60a 177 ARG_TIMER_PROPERTY,
1d42b86d
MB		 178 ARG_PATH_PROPERTY,
179 ARG_SOCKET_PROPERTY,
e3bff60a 180 ARG_NO_BLOCK,
aa27b158 181 ARG_NO_ASK_PASSWORD,
8a584da2 182 ARG_WAIT,
6e866b33
MB		 183 ARG_WORKING_DIRECTORY,
184 ARG_SHELL,
14228c0d
MB		 185 };
186
187 static const struct option options[] = {
6e866b33
MB		 188 { "help", no_argument, NULL, 'h' },
189 { "version", no_argument, NULL, ARG_VERSION },
190 { "user", no_argument, NULL, ARG_USER },
191 { "system", no_argument, NULL, ARG_SYSTEM },
192 { "scope", no_argument, NULL, ARG_SCOPE },
193 { "unit", required_argument, NULL, ARG_UNIT },
194 { "description", required_argument, NULL, ARG_DESCRIPTION },
195 { "slice", required_argument, NULL, ARG_SLICE },
196 { "remain-after-exit", no_argument, NULL, 'r' },
197 { "send-sighup", no_argument, NULL, ARG_SEND_SIGHUP },
198 { "host", required_argument, NULL, 'H' },
199 { "machine", required_argument, NULL, 'M' },
200 { "service-type", required_argument, NULL, ARG_SERVICE_TYPE },
201 { "wait", no_argument, NULL, ARG_WAIT },
202 { "uid", required_argument, NULL, ARG_EXEC_USER },
203 { "gid", required_argument, NULL, ARG_EXEC_GROUP },
204 { "nice", required_argument, NULL, ARG_NICE },
205 { "setenv", required_argument, NULL, 'E' },
206 { "property", required_argument, NULL, 'p' },
207 { "tty", no_argument, NULL, 't' }, /* deprecated alias */
208 { "pty", no_argument, NULL, 't' },
209 { "pipe", no_argument, NULL, 'P' },
210 { "quiet", no_argument, NULL, 'q' },
211 { "on-active", required_argument, NULL, ARG_ON_ACTIVE },
212 { "on-boot", required_argument, NULL, ARG_ON_BOOT },
213 { "on-startup", required_argument, NULL, ARG_ON_STARTUP },
214 { "on-unit-active", required_argument, NULL, ARG_ON_UNIT_ACTIVE },
215 { "on-unit-inactive", required_argument, NULL, ARG_ON_UNIT_INACTIVE },
216 { "on-calendar", required_argument, NULL, ARG_ON_CALENDAR },
bb4f798a
MB		 217 { "on-timezone-change",no_argument, NULL, ARG_ON_TIMEZONE_CHANGE},
218 { "on-clock-change", no_argument, NULL, ARG_ON_CLOCK_CHANGE },
6e866b33
MB		 219 { "timer-property", required_argument, NULL, ARG_TIMER_PROPERTY },
220 { "path-property", required_argument, NULL, ARG_PATH_PROPERTY },
221 { "socket-property", required_argument, NULL, ARG_SOCKET_PROPERTY },
222 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
223 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
224 { "collect", no_argument, NULL, 'G' },
225 { "working-directory", required_argument, NULL, ARG_WORKING_DIRECTORY },
226 { "same-dir", no_argument, NULL, 'd' },
227 { "shell", no_argument, NULL, 'S' },
60f067b4 228 {},
14228c0d
MB		 229 };
230
1d42b86d 231 bool with_trigger = false;
60f067b4 232 int r, c;
14228c0d
MB		 233
234 assert(argc >= 0);
235 assert(argv);
236
6e866b33 237 while ((c = getopt_long(argc, argv, "+hrH:M:E:p:tPqGdS", options, NULL)) >= 0)
14228c0d
MB		 238
239 switch (c) {
240
241 case 'h':
6e866b33 242 return help();
14228c0d 243
8a584da2
MP		 244 case ARG_VERSION:
245 return version();
246
d9dfd233
MP		 247 case ARG_NO_ASK_PASSWORD:
248 arg_ask_password = false;
249 break;
250
14228c0d
MB		 251 case ARG_USER:
252 arg_user = true;
253 break;
254
60f067b4
JS		 255 case ARG_SYSTEM:
256 arg_user = false;
257 break;
258
14228c0d
MB		 259 case ARG_SCOPE:
260 arg_scope = true;
261 break;
262
263 case ARG_UNIT:
264 arg_unit = optarg;
265 break;
266
267 case ARG_DESCRIPTION:
268 arg_description = optarg;
269 break;
270
271 case ARG_SLICE:
272 arg_slice = optarg;
273 break;
274
275 case ARG_SEND_SIGHUP:
276 arg_send_sighup = true;
277 break;
278
279 case 'r':
280 arg_remain_after_exit = true;
281 break;
282
60f067b4
JS		 283 case 'H':
284 arg_transport = BUS_TRANSPORT_REMOTE;
285 arg_host = optarg;
286 break;
287
288 case 'M':
e735f4d4 289 arg_transport = BUS_TRANSPORT_MACHINE;
60f067b4
JS		 290 arg_host = optarg;
291 break;
292
293 case ARG_SERVICE_TYPE:
294 arg_service_type = optarg;
295 break;
296
297 case ARG_EXEC_USER:
298 arg_exec_user = optarg;
299 break;
300
301 case ARG_EXEC_GROUP:
302 arg_exec_group = optarg;
303 break;
304
305 case ARG_NICE:
8a584da2
MP		 306 r = parse_nice(optarg, &arg_nice);
307 if (r < 0)
308 return log_error_errno(r, "Failed to parse nice value: %s", optarg);
60f067b4
JS		 309
310 arg_nice_set = true;
311 break;
312
aa27b158 313 case 'E':
60f067b4
JS		 314 if (strv_extend(&arg_environment, optarg) < 0)
315 return log_oom();
316
317 break;
318
319 case 'p':
60f067b4
JS		 320 if (strv_extend(&arg_property, optarg) < 0)
321 return log_oom();
322
323 break;
324
f5e65279
MB		 325 case 't': /* --pty */
326 if (IN_SET(arg_stdio, ARG_STDIO_DIRECT, ARG_STDIO_AUTO)) /* if --pipe is already used, upgrade to auto mode */
327 arg_stdio = ARG_STDIO_AUTO;
328 else
329 arg_stdio = ARG_STDIO_PTY;
330 break;
331
332 case 'P': /* --pipe */
333 if (IN_SET(arg_stdio, ARG_STDIO_PTY, ARG_STDIO_AUTO)) /* If --pty is already used, upgrade to auto mode */
334 arg_stdio = ARG_STDIO_AUTO;
335 else
336 arg_stdio = ARG_STDIO_DIRECT;
e735f4d4
MP		 337 break;
338
339 case 'q':
340 arg_quiet = true;
341 break;
342
f47781d8 343 case ARG_ON_ACTIVE:
52ad194e
MB		 344 r = add_timer_property("OnActiveSec", optarg);
345 if (r < 0)
f47781d8 346 return r;
f47781d8 347
bb4f798a 348 arg_with_timer = true;
f47781d8
MP		 349 break;
350
351 case ARG_ON_BOOT:
52ad194e
MB		 352 r = add_timer_property("OnBootSec", optarg);
353 if (r < 0)
f47781d8 354 return r;
f47781d8 355
bb4f798a 356 arg_with_timer = true;
f47781d8
MP		 357 break;
358
359 case ARG_ON_STARTUP:
52ad194e
MB		 360 r = add_timer_property("OnStartupSec", optarg);
361 if (r < 0)
f47781d8 362 return r;
f47781d8 363
bb4f798a 364 arg_with_timer = true;
f47781d8
MP		 365 break;
366
367 case ARG_ON_UNIT_ACTIVE:
52ad194e
MB		 368 r = add_timer_property("OnUnitActiveSec", optarg);
369 if (r < 0)
f47781d8 370 return r;
f47781d8 371
bb4f798a 372 arg_with_timer = true;
f47781d8
MP		 373 break;
374
375 case ARG_ON_UNIT_INACTIVE:
52ad194e
MB		 376 r = add_timer_property("OnUnitInactiveSec", optarg);
377 if (r < 0)
f47781d8 378 return r;
f47781d8 379
bb4f798a 380 arg_with_timer = true;
f47781d8
MP		 381 break;
382
52ad194e
MB		 383 case ARG_ON_CALENDAR:
384 r = add_timer_property("OnCalendar", optarg);
385 if (r < 0)
f47781d8 386 return r;
db2df898 387
bb4f798a
MB		 388 arg_with_timer = true;
389 break;
390
391 case ARG_ON_TIMEZONE_CHANGE:
392 r = add_timer_property("OnTimezoneChange", "yes");
393 if (r < 0)
394 return r;
395
396 arg_with_timer = true;
397 break;
398
399 case ARG_ON_CLOCK_CHANGE:
400 r = add_timer_property("OnClockChange", "yes");
401 if (r < 0)
402 return r;
403
404 arg_with_timer = true;
f47781d8
MP		 405 break;
406
407 case ARG_TIMER_PROPERTY:
408
409 if (strv_extend(&arg_timer_property, optarg) < 0)
410 return log_oom();
411
bb4f798a 412 arg_with_timer = arg_with_timer ||
6e866b33
MB		 413 STARTSWITH_SET(optarg,
414 "OnActiveSec=",
415 "OnBootSec=",
416 "OnStartupSec=",
417 "OnUnitActiveSec=",
418 "OnUnitInactiveSec=",
419 "OnCalendar=");
f47781d8
MP		 420 break;
421
1d42b86d
MB		 422 case ARG_PATH_PROPERTY:
423
424 if (strv_extend(&arg_path_property, optarg) < 0)
425 return log_oom();
426
427 break;
428
429 case ARG_SOCKET_PROPERTY:
430
431 if (strv_extend(&arg_socket_property, optarg) < 0)
432 return log_oom();
433
434 break;
435
e3bff60a
MP		 436 case ARG_NO_BLOCK:
437 arg_no_block = true;
438 break;
439
8a584da2
MP		 440 case ARG_WAIT:
441 arg_wait = true;
442 break;
443
6e866b33
MB		 444 case ARG_WORKING_DIRECTORY:
445 r = parse_path_argument_and_warn(optarg, true, &arg_working_directory);
446 if (r < 0)
447 return r;
448
449 break;
450
451 case 'd': {
452 _cleanup_free_ char *p = NULL;
453
454 r = safe_getcwd(&p);
455 if (r < 0)
456 return log_error_errno(r, "Failed to get current working directory: %m");
457
458 if (empty_or_root(p))
459 arg_working_directory = mfree(arg_working_directory);
460 else
461 free_and_replace(arg_working_directory, p);
462 break;
463 }
464
52ad194e
MB		 465 case 'G':
466 arg_aggressive_gc = true;
467 break;
468
6e866b33
MB		 469 case 'S':
470 arg_shell = true;
471 break;
472
14228c0d
MB		 473 case '?':
474 return -EINVAL;
475
476 default:
60f067b4 477 assert_not_reached("Unhandled option");
14228c0d 478 }
14228c0d 479
bb4f798a 480 with_trigger = !!arg_path_property || !!arg_socket_property || arg_with_timer;
1d42b86d
MB		 481
482 /* currently, only single trigger (path, socket, timer) unit can be created simultaneously */
bb4f798a 483 if ((int) !!arg_path_property + (int) !!arg_socket_property + (int) arg_with_timer > 1)
6e866b33
MB		 484 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
485 "Only single trigger (path, socket, timer) unit can be created.");
486
487 if (arg_shell) {
488 /* If --shell is imply --pty --pipe --same-dir --service-type=exec --wait --collect, unless otherwise
489 * specified. */
490
491 if (!arg_scope) {
492 if (arg_stdio == ARG_STDIO_NONE)
493 arg_stdio = ARG_STDIO_AUTO;
494
495 if (!arg_working_directory) {
496 r = safe_getcwd(&arg_working_directory);
497 if (r < 0)
498 return log_error_errno(r, "Failed to get current working directory: %m");
499 }
500
501 if (!arg_service_type) {
502 arg_service_type = strdup("exec");
503 if (!arg_service_type)
504 return log_oom();
505 }
506
507 arg_wait = true;
508 }
509
510 arg_aggressive_gc = true;
1d42b86d 511 }
f5e65279
MB		 512
513 if (arg_stdio == ARG_STDIO_AUTO) {
514 /* If we both --pty and --pipe are specified we'll automatically pick --pty if we are connected fully
515 * to a TTY and pick direct fd passing otherwise. This way, we automatically adapt to usage in a shell
516 * pipeline, but we are neatly interactive with tty-level isolation otherwise. */
517 arg_stdio = isatty(STDIN_FILENO) && isatty(STDOUT_FILENO) && isatty(STDERR_FILENO) ?
518 ARG_STDIO_PTY :
519 ARG_STDIO_DIRECT;
520 }
521
6e866b33
MB		 522 if (argc > optind) {
523 char **l;
14228c0d 524
6e866b33
MB		 525 if (arg_shell)
526 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "If --shell is used, no command line is expected.");
60f067b4 527
6e866b33
MB		 528 l = strv_copy(argv + optind);
529 if (!l)
530 return log_oom();
60f067b4 531
6e866b33 532 strv_free_and_replace(arg_cmdline, l);
60f067b4 533
6e866b33
MB		 534 } else if (arg_shell) {
535 _cleanup_free_ char *s = NULL;
536 char **l;
e735f4d4 537
6e866b33
MB		 538 r = get_shell(&s);
539 if (r < 0)
540 return log_error_errno(r, "Failed to determine shell: %m");
db2df898 541
6e866b33
MB		 542 l = strv_new(s);
543 if (!l)
544 return log_oom();
2897b343 545
6e866b33 546 strv_free_and_replace(arg_cmdline, l);
f47781d8 547
6e866b33
MB		 548 } else if (!arg_unit || !with_trigger)
549 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Command line to execute required.");
550
551 if (arg_user && arg_transport != BUS_TRANSPORT_LOCAL)
552 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
553 "Execution in user context is not supported on non-local systems.");
554
555 if (arg_scope && arg_transport != BUS_TRANSPORT_LOCAL)
556 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
557 "Scope execution is not supported on non-local systems.");
558
559 if (arg_scope && (arg_remain_after_exit || arg_service_type))
560 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
561 "--remain-after-exit and --service-type= are not supported in --scope mode.");
562
563 if (arg_stdio != ARG_STDIO_NONE && (with_trigger || arg_scope))
564 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
565 "--pty/--pipe is not compatible in timer or --scope mode.");
566
567 if (arg_stdio != ARG_STDIO_NONE && arg_transport == BUS_TRANSPORT_REMOTE)
568 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
569 "--pty/--pipe is only supported when connecting to the local system or containers.");
570
571 if (arg_stdio != ARG_STDIO_NONE && arg_no_block)
572 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
573 "--pty/--pipe is not compatible with --no-block.");
574
575 if (arg_scope && with_trigger)
576 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
577 "Path, socket or timer options are not supported in --scope mode.");
578
bb4f798a 579 if (arg_timer_property && !arg_with_timer)
6e866b33
MB		 580 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
581 "--timer-property= has no effect without any other timer options.");
f47781d8 582
8a584da2 583 if (arg_wait) {
6e866b33
MB		 584 if (arg_no_block)
585 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
586 "--wait may not be combined with --no-block.");
8a584da2 587
6e866b33
MB		 588 if (with_trigger)
589 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
590 "--wait may not be combined with path, socket or timer operations.");
8a584da2 591
6e866b33
MB		 592 if (arg_scope)
593 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
594 "--wait may not be combined with --scope.");
8a584da2
MP		 595 }
596
14228c0d
MB		 597 return 1;
598}
599
1d42b86d 600static int transient_unit_set_properties(sd_bus_message *m, UnitType t, char **properties) {
14228c0d
MB		 601 int r;
602
e735f4d4
MP		 603 r = sd_bus_message_append(m, "(sv)", "Description", "s", arg_description);
604 if (r < 0)
52ad194e
MB		 605 return bus_log_create_error(r);
606
607 if (arg_aggressive_gc) {
608 r = sd_bus_message_append(m, "(sv)", "CollectMode", "s", "inactive-or-failed");
609 if (r < 0)
610 return bus_log_create_error(r);
611 }
e735f4d4 612
1d42b86d 613 r = bus_append_unit_property_assignment_many(m, t, properties);
8a584da2
MP		 614 if (r < 0)
615 return r;
60f067b4 616
e735f4d4
MP		 617 return 0;
618}
619
620static int transient_cgroup_set_properties(sd_bus_message *m) {
621 int r;
622 assert(m);
14228c0d
MB		 623
624 if (!isempty(arg_slice)) {
52ad194e 625 _cleanup_free_ char *slice = NULL;
14228c0d 626
b012e921 627 r = unit_name_mangle_with_suffix(arg_slice, arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN, ".slice", &slice);
e3bff60a 628 if (r < 0)
52ad194e 629 return log_error_errno(r, "Failed to mangle name '%s': %m", arg_slice);
14228c0d
MB		 630
631 r = sd_bus_message_append(m, "(sv)", "Slice", "s", slice);
632 if (r < 0)
52ad194e 633 return bus_log_create_error(r);
14228c0d
MB		 634 }
635
14228c0d
MB		 636 return 0;
637}
638
e735f4d4 639static int transient_kill_set_properties(sd_bus_message *m) {
52ad194e
MB		 640 int r;
641
e735f4d4
MP		 642 assert(m);
643
52ad194e
MB		 644 if (arg_send_sighup) {
645 r = sd_bus_message_append(m, "(sv)", "SendSIGHUP", "b", arg_send_sighup);
646 if (r < 0)
647 return bus_log_create_error(r);
648 }
649
650 return 0;
e735f4d4
MP		 651}
652
6e866b33 653static int transient_service_set_properties(sd_bus_message *m, const char *pty_path) {
f5e65279 654 bool send_term = false;
14228c0d
MB		 655 int r;
656
60f067b4
JS		 657 assert(m);
658
1d42b86d 659 r = transient_unit_set_properties(m, UNIT_SERVICE, arg_property);
e735f4d4
MP		 660 if (r < 0)
661 return r;
662
663 r = transient_kill_set_properties(m);
664 if (r < 0)
665 return r;
666
667 r = transient_cgroup_set_properties(m);
14228c0d
MB		 668 if (r < 0)
669 return r;
670
f5e65279 671 if (arg_wait || arg_stdio != ARG_STDIO_NONE) {
8a584da2
MP		 672 r = sd_bus_message_append(m, "(sv)", "AddRef", "b", 1);
673 if (r < 0)
52ad194e 674 return bus_log_create_error(r);
8a584da2
MP		 675 }
676
60f067b4
JS		 677 if (arg_remain_after_exit) {
678 r = sd_bus_message_append(m, "(sv)", "RemainAfterExit", "b", arg_remain_after_exit);
679 if (r < 0)
52ad194e 680 return bus_log_create_error(r);
60f067b4
JS		 681 }
682
683 if (arg_service_type) {
684 r = sd_bus_message_append(m, "(sv)", "Type", "s", arg_service_type);
685 if (r < 0)
52ad194e 686 return bus_log_create_error(r);
60f067b4
JS		 687 }
688
689 if (arg_exec_user) {
690 r = sd_bus_message_append(m, "(sv)", "User", "s", arg_exec_user);
691 if (r < 0)
52ad194e 692 return bus_log_create_error(r);
60f067b4
JS		 693 }
694
695 if (arg_exec_group) {
696 r = sd_bus_message_append(m, "(sv)", "Group", "s", arg_exec_group);
697 if (r < 0)
52ad194e 698 return bus_log_create_error(r);
60f067b4
JS		 699 }
700
701 if (arg_nice_set) {
702 r = sd_bus_message_append(m, "(sv)", "Nice", "i", arg_nice);
703 if (r < 0)
52ad194e 704 return bus_log_create_error(r);
60f067b4
JS		 705 }
706
6e866b33
MB		 707 if (arg_working_directory) {
708 r = sd_bus_message_append(m, "(sv)", "WorkingDirectory", "s", arg_working_directory);
709 if (r < 0)
710 return bus_log_create_error(r);
711 }
712
e735f4d4 713 if (pty_path) {
e735f4d4
MP		 714 r = sd_bus_message_append(m,
715 "(sv)(sv)(sv)(sv)",
716 "StandardInput", "s", "tty",
717 "StandardOutput", "s", "tty",
718 "StandardError", "s", "tty",
719 "TTYPath", "s", pty_path);
720 if (r < 0)
52ad194e 721 return bus_log_create_error(r);
e735f4d4 722
f5e65279
MB		 723 send_term = true;
724
725 } else if (arg_stdio == ARG_STDIO_DIRECT) {
726 r = sd_bus_message_append(m,
727 "(sv)(sv)(sv)",
728 "StandardInputFileDescriptor", "h", STDIN_FILENO,
729 "StandardOutputFileDescriptor", "h", STDOUT_FILENO,
730 "StandardErrorFileDescriptor", "h", STDERR_FILENO);
731 if (r < 0)
52ad194e 732 return bus_log_create_error(r);
f5e65279
MB		 733
734 send_term = isatty(STDIN_FILENO) || isatty(STDOUT_FILENO) || isatty(STDERR_FILENO);
735 }
736
737 if (send_term) {
738 const char *e;
739
e735f4d4
MP		 740 e = getenv("TERM");
741 if (e) {
742 char *n;
743
744 n = strjoina("TERM=", e);
745 r = sd_bus_message_append(m,
746 "(sv)",
747 "Environment", "as", 1, n);
748 if (r < 0)
52ad194e 749 return bus_log_create_error(r);
e735f4d4
MP		 750 }
751 }
752
60f067b4
JS		 753 if (!strv_isempty(arg_environment)) {
754 r = sd_bus_message_open_container(m, 'r', "sv");
755 if (r < 0)
52ad194e 756 return bus_log_create_error(r);
60f067b4
JS		 757
758 r = sd_bus_message_append(m, "s", "Environment");
759 if (r < 0)
52ad194e 760 return bus_log_create_error(r);
60f067b4
JS		 761
762 r = sd_bus_message_open_container(m, 'v', "as");
763 if (r < 0)
52ad194e 764 return bus_log_create_error(r);
60f067b4
JS		 765
766 r = sd_bus_message_append_strv(m, arg_environment);
767 if (r < 0)
52ad194e 768 return bus_log_create_error(r);
60f067b4
JS		 769
770 r = sd_bus_message_close_container(m);
771 if (r < 0)
52ad194e 772 return bus_log_create_error(r);
60f067b4
JS		 773
774 r = sd_bus_message_close_container(m);
775 if (r < 0)
52ad194e 776 return bus_log_create_error(r);
f47781d8
MP		 777 }
778
779 /* Exec container */
6e866b33 780 if (!strv_isempty(arg_cmdline)) {
f47781d8
MP		 781 r = sd_bus_message_open_container(m, 'r', "sv");
782 if (r < 0)
52ad194e 783 return bus_log_create_error(r);
f47781d8
MP		 784
785 r = sd_bus_message_append(m, "s", "ExecStart");
786 if (r < 0)
52ad194e 787 return bus_log_create_error(r);
f47781d8
MP		 788
789 r = sd_bus_message_open_container(m, 'v', "a(sasb)");
790 if (r < 0)
52ad194e 791 return bus_log_create_error(r);
f47781d8
MP		 792
793 r = sd_bus_message_open_container(m, 'a', "(sasb)");
794 if (r < 0)
52ad194e 795 return bus_log_create_error(r);
f47781d8
MP		 796
797 r = sd_bus_message_open_container(m, 'r', "sasb");
798 if (r < 0)
52ad194e 799 return bus_log_create_error(r);
f47781d8 800
6e866b33 801 r = sd_bus_message_append(m, "s", arg_cmdline[0]);
f47781d8 802 if (r < 0)
52ad194e 803 return bus_log_create_error(r);
f47781d8 804
6e866b33 805 r = sd_bus_message_append_strv(m, arg_cmdline);
f47781d8 806 if (r < 0)
52ad194e 807 return bus_log_create_error(r);
f47781d8
MP		 808
809 r = sd_bus_message_append(m, "b", false);
810 if (r < 0)
52ad194e 811 return bus_log_create_error(r);
f47781d8
MP		 812
813 r = sd_bus_message_close_container(m);
814 if (r < 0)
52ad194e 815 return bus_log_create_error(r);
f47781d8
MP		 816
817 r = sd_bus_message_close_container(m);
818 if (r < 0)
52ad194e 819 return bus_log_create_error(r);
f47781d8
MP		 820
821 r = sd_bus_message_close_container(m);
822 if (r < 0)
52ad194e 823 return bus_log_create_error(r);
f47781d8
MP		 824
825 r = sd_bus_message_close_container(m);
826 if (r < 0)
52ad194e 827 return bus_log_create_error(r);
f47781d8
MP		 828 }
829
830 return 0;
831}
832
e735f4d4
MP		 833static int transient_scope_set_properties(sd_bus_message *m) {
834 int r;
835
836 assert(m);
837
1d42b86d 838 r = transient_unit_set_properties(m, UNIT_SCOPE, arg_property);
e735f4d4
MP		 839 if (r < 0)
840 return r;
841
842 r = transient_kill_set_properties(m);
843 if (r < 0)
844 return r;
845
aa27b158
MP		 846 r = transient_cgroup_set_properties(m);
847 if (r < 0)
848 return r;
849
f5e65279 850 r = sd_bus_message_append(m, "(sv)", "PIDs", "au", 1, (uint32_t) getpid_cached());
e735f4d4 851 if (r < 0)
52ad194e 852 return bus_log_create_error(r);
e735f4d4
MP		 853
854 return 0;
855}
856
f47781d8
MP		 857static int transient_timer_set_properties(sd_bus_message *m) {
858 int r;
859
860 assert(m);
861
1d42b86d 862 r = transient_unit_set_properties(m, UNIT_TIMER, arg_timer_property);
f47781d8
MP		 863 if (r < 0)
864 return r;
865
db2df898
MP		 866 /* Automatically clean up our transient timers */
867 r = sd_bus_message_append(m, "(sv)", "RemainAfterElapse", "b", false);
868 if (r < 0)
52ad194e 869 return bus_log_create_error(r);
f47781d8
MP		 870
871 return 0;
872}
873
db2df898
MP		 874static int make_unit_name(sd_bus *bus, UnitType t, char **ret) {
875 const char *unique, *id;
876 char *p;
877 int r;
878
879 assert(bus);
880 assert(t >= 0);
881 assert(t < _UNIT_TYPE_MAX);
882
883 r = sd_bus_get_unique_name(bus, &unique);
884 if (r < 0) {
885 sd_id128_t rnd;
886
887 /* We couldn't get the unique name, which is a pretty
888 * common case if we are connected to systemd
889 * directly. In that case, just pick a random uuid as
890 * name */
891
892 r = sd_id128_randomize(&rnd);
893 if (r < 0)
894 return log_error_errno(r, "Failed to generate random run unit name: %m");
895
896 if (asprintf(ret, "run-r" SD_ID128_FORMAT_STR ".%s", SD_ID128_FORMAT_VAL(rnd), unit_type_to_string(t)) < 0)
897 return log_oom();
898
899 return 0;
900 }
901
902 /* We managed to get the unique name, then let's use that to
903 * name our transient units. */
904
905 id = startswith(unique, ":1.");
6e866b33
MB		 906 if (!id)
907 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
908 "Unique name %s has unexpected format.",
909 unique);
db2df898 910
2897b343 911 p = strjoin("run-u", id, ".", unit_type_to_string(t));
db2df898
MP		 912 if (!p)
913 return log_oom();
914
915 *ret = p;
916 return 0;
917}
918
8a584da2
MP		 919typedef struct RunContext {
920 sd_bus *bus;
921 sd_event *event;
922 PTYForward *forward;
923 sd_bus_slot *match;
924
925 /* The exit data of the unit */
926 char *active_state;
927 uint64_t inactive_exit_usec;
928 uint64_t inactive_enter_usec;
929 char *result;
930 uint64_t cpu_usage_nsec;
f5e65279
MB		 931 uint64_t ip_ingress_bytes;
932 uint64_t ip_egress_bytes;
8a584da2
MP		 933 uint32_t exit_code;
934 uint32_t exit_status;
935} RunContext;
936
937static void run_context_free(RunContext *c) {
938 assert(c);
939
940 c->forward = pty_forward_free(c->forward);
941 c->match = sd_bus_slot_unref(c->match);
942 c->bus = sd_bus_unref(c->bus);
943 c->event = sd_event_unref(c->event);
944
945 free(c->active_state);
946 free(c->result);
947}
948
949static void run_context_check_done(RunContext *c) {
2897b343 950 bool done;
8a584da2
MP		 951
952 assert(c);
953
954 if (c->match)
2897b343
MP		 955 done = STRPTR_IN_SET(c->active_state, "inactive", "failed");
956 else
957 done = true;
8a584da2 958
2897b343
MP		 959 if (c->forward && done) /* If the service is gone, it's time to drain the output */
960 done = pty_forward_drain(c->forward);
8a584da2
MP		 961
962 if (done)
963 sd_event_exit(c->event, EXIT_SUCCESS);
964}
965
2897b343 966static int run_context_update(RunContext *c, const char *path) {
8a584da2
MP		 967
968 static const struct bus_properties_map map[] = {
969 { "ActiveState", "s", NULL, offsetof(RunContext, active_state) },
970 { "InactiveExitTimestampMonotonic", "t", NULL, offsetof(RunContext, inactive_exit_usec) },
971 { "InactiveEnterTimestampMonotonic", "t", NULL, offsetof(RunContext, inactive_enter_usec) },
972 { "Result", "s", NULL, offsetof(RunContext, result) },
973 { "ExecMainCode", "i", NULL, offsetof(RunContext, exit_code) },
974 { "ExecMainStatus", "i", NULL, offsetof(RunContext, exit_status) },
975 { "CPUUsageNSec", "t", NULL, offsetof(RunContext, cpu_usage_nsec) },
f5e65279
MB		 976 { "IPIngressBytes", "t", NULL, offsetof(RunContext, ip_ingress_bytes) },
977 { "IPEgressBytes", "t", NULL, offsetof(RunContext, ip_egress_bytes) },
8a584da2
MP		 978 {}
979 };
980
2897b343 981 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
8a584da2
MP		 982 int r;
983
984 r = bus_map_all_properties(c->bus,
985 "org.freedesktop.systemd1",
2897b343 986 path,
8a584da2 987 map,
b012e921 988 BUS_MAP_STRDUP,
2897b343 989 &error,
b012e921 990 NULL,
8a584da2
MP		 991 c);
992 if (r < 0) {
993 sd_event_exit(c->event, EXIT_FAILURE);
2897b343 994 return log_error_errno(r, "Failed to query unit state: %s", bus_error_message(&error, r));
8a584da2
MP		 995 }
996
997 run_context_check_done(c);
998 return 0;
999}
1000
2897b343
MP		 1001static int on_properties_changed(sd_bus_message *m, void *userdata, sd_bus_error *error) {
1002 RunContext *c = userdata;
1003
1004 assert(m);
1005 assert(c);
1006
1007 return run_context_update(c, sd_bus_message_get_path(m));
1008}
1009
8a584da2
MP		 1010static int pty_forward_handler(PTYForward *f, int rcode, void *userdata) {
1011 RunContext *c = userdata;
1012
1013 assert(f);
1014
1015 if (rcode < 0) {
1016 sd_event_exit(c->event, EXIT_FAILURE);
1017 return log_error_errno(rcode, "Error on PTY forwarding logic: %m");
1018 }
1019
1020 run_context_check_done(c);
1021 return 0;
1022}
1023
f47781d8
MP		 1024static int start_transient_service(
1025 sd_bus *bus,
8a584da2 1026 int *retval) {
f47781d8 1027
4c89c718
MP		 1028 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
1029 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
e3bff60a 1030 _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL;
e735f4d4
MP		 1031 _cleanup_free_ char *service = NULL, *pty_path = NULL;
1032 _cleanup_close_ int master = -1;
f47781d8
MP		 1033 int r;
1034
1035 assert(bus);
8a584da2 1036 assert(retval);
f47781d8 1037
f5e65279 1038 if (arg_stdio == ARG_STDIO_PTY) {
e735f4d4
MP		 1039
1040 if (arg_transport == BUS_TRANSPORT_LOCAL) {
b012e921 1041 master = posix_openpt(O_RDWR|O_NOCTTY|O_CLOEXEC|O_NONBLOCK);
e735f4d4
MP		 1042 if (master < 0)
1043 return log_error_errno(errno, "Failed to acquire pseudo tty: %m");
1044
1045 r = ptsname_malloc(master, &pty_path);
1046 if (r < 0)
1047 return log_error_errno(r, "Failed to determine tty name: %m");
1048
d9dfd233
MP		 1049 if (unlockpt(master) < 0)
1050 return log_error_errno(errno, "Failed to unlock tty: %m");
1051
e735f4d4 1052 } else if (arg_transport == BUS_TRANSPORT_MACHINE) {
4c89c718 1053 _cleanup_(sd_bus_unrefp) sd_bus *system_bus = NULL;
aa27b158 1054 _cleanup_(sd_bus_message_unrefp) sd_bus_message *pty_reply = NULL;
e735f4d4
MP		 1055 const char *s;
1056
db2df898 1057 r = sd_bus_default_system(&system_bus);
e735f4d4 1058 if (r < 0)
db2df898 1059 return log_error_errno(r, "Failed to connect to system bus: %m");
e735f4d4
MP		 1060
1061 r = sd_bus_call_method(system_bus,
1062 "org.freedesktop.machine1",
1063 "/org/freedesktop/machine1",
1064 "org.freedesktop.machine1.Manager",
1065 "OpenMachinePTY",
1066 &error,
aa27b158 1067 &pty_reply,
e735f4d4 1068 "s", arg_host);
6e866b33
MB		 1069 if (r < 0)
1070 return log_error_errno(r, "Failed to get machine PTY: %s", bus_error_message(&error, -r));
e735f4d4 1071
aa27b158 1072 r = sd_bus_message_read(pty_reply, "hs", &master, &s);
e735f4d4
MP		 1073 if (r < 0)
1074 return bus_log_parse_error(r);
1075
1076 master = fcntl(master, F_DUPFD_CLOEXEC, 3);
1077 if (master < 0)
1078 return log_error_errno(errno, "Failed to duplicate master fd: %m");
1079
1080 pty_path = strdup(s);
1081 if (!pty_path)
1082 return log_oom();
1083 } else
1084 assert_not_reached("Can't allocate tty via ssh");
e735f4d4
MP		 1085 }
1086
e3bff60a
MP		 1087 if (!arg_no_block) {
1088 r = bus_wait_for_jobs_new(bus, &w);
1089 if (r < 0)
1090 return log_error_errno(r, "Could not watch jobs: %m");
1091 }
1092
f47781d8 1093 if (arg_unit) {
b012e921 1094 r = unit_name_mangle_with_suffix(arg_unit, arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN, ".service", &service);
e3bff60a
MP		 1095 if (r < 0)
1096 return log_error_errno(r, "Failed to mangle unit name: %m");
db2df898
MP		 1097 } else {
1098 r = make_unit_name(bus, UNIT_SERVICE, &service);
1099 if (r < 0)
1100 return r;
1101 }
f47781d8
MP		 1102
1103 r = sd_bus_message_new_method_call(
1104 bus,
1105 &m,
1106 "org.freedesktop.systemd1",
1107 "/org/freedesktop/systemd1",
1108 "org.freedesktop.systemd1.Manager",
1109 "StartTransientUnit");
14228c0d 1110 if (r < 0)
60f067b4 1111 return bus_log_create_error(r);
14228c0d 1112
d9dfd233
MP		 1113 r = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password);
1114 if (r < 0)
1115 return bus_log_create_error(r);
1116
e735f4d4 1117 /* Name and mode */
f47781d8 1118 r = sd_bus_message_append(m, "ss", service, "fail");
14228c0d 1119 if (r < 0)
60f067b4 1120 return bus_log_create_error(r);
14228c0d 1121
e735f4d4 1122 /* Properties */
f47781d8 1123 r = sd_bus_message_open_container(m, 'a', "(sv)");
14228c0d 1124 if (r < 0)
60f067b4 1125 return bus_log_create_error(r);
14228c0d 1126
6e866b33 1127 r = transient_service_set_properties(m, pty_path);
14228c0d 1128 if (r < 0)
52ad194e 1129 return r;
14228c0d 1130
f47781d8 1131 r = sd_bus_message_close_container(m);
14228c0d 1132 if (r < 0)
60f067b4 1133 return bus_log_create_error(r);
14228c0d 1134
e735f4d4 1135 /* Auxiliary units */
f47781d8 1136 r = sd_bus_message_append(m, "a(sa(sv))", 0);
14228c0d 1137 if (r < 0)
60f067b4 1138 return bus_log_create_error(r);
14228c0d 1139
52ad194e 1140 polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
d9dfd233 1141
e3bff60a 1142 r = sd_bus_call(bus, m, 0, &error, &reply);
db2df898
MP		 1143 if (r < 0)
1144 return log_error_errno(r, "Failed to start transient service unit: %s", bus_error_message(&error, r));
14228c0d 1145
e3bff60a
MP		 1146 if (w) {
1147 const char *object;
1148
1149 r = sd_bus_message_read(reply, "o", &object);
1150 if (r < 0)
1151 return bus_log_parse_error(r);
1152
1153 r = bus_wait_for_jobs_one(w, object, arg_quiet);
1154 if (r < 0)
1155 return r;
1156 }
1157
8a584da2
MP		 1158 if (!arg_quiet)
1159 log_info("Running as unit: %s", service);
1160
f5e65279
MB		 1161 if (arg_wait || arg_stdio != ARG_STDIO_NONE) {
1162 _cleanup_(run_context_free) RunContext c = {
1163 .cpu_usage_nsec = NSEC_INFINITY,
1164 .ip_ingress_bytes = UINT64_MAX,
1165 .ip_egress_bytes = UINT64_MAX,
1166 .inactive_exit_usec = USEC_INFINITY,
1167 .inactive_enter_usec = USEC_INFINITY,
1168 };
2897b343 1169 _cleanup_free_ char *path = NULL;
60f067b4 1170
8a584da2
MP		 1171 c.bus = sd_bus_ref(bus);
1172
1173 r = sd_event_default(&c.event);
f47781d8 1174 if (r < 0)
e735f4d4 1175 return log_error_errno(r, "Failed to get event loop: %m");
f47781d8 1176
8a584da2
MP		 1177 if (master >= 0) {
1178 assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGWINCH, SIGTERM, SIGINT, -1) >= 0);
1179 (void) sd_event_add_signal(c.event, NULL, SIGINT, NULL, NULL);
1180 (void) sd_event_add_signal(c.event, NULL, SIGTERM, NULL, NULL);
f47781d8 1181
8a584da2
MP		 1182 if (!arg_quiet)
1183 log_info("Press ^] three times within 1s to disconnect TTY.");
f47781d8 1184
8a584da2
MP		 1185 r = pty_forward_new(c.event, master, PTY_FORWARD_IGNORE_INITIAL_VHANGUP, &c.forward);
1186 if (r < 0)
1187 return log_error_errno(r, "Failed to create PTY forwarder: %m");
f47781d8 1188
8a584da2 1189 pty_forward_set_handler(c.forward, pty_forward_handler, &c);
52ad194e
MB		 1190
1191 /* Make sure to process any TTY events before we process bus events */
1192 (void) pty_forward_set_priority(c.forward, SD_EVENT_PRIORITY_IMPORTANT);
8a584da2
MP		 1193 }
1194
2897b343
MP		 1195 path = unit_dbus_path_from_name(service);
1196 if (!path)
1197 return log_oom();
8a584da2 1198
1d42b86d
MB		 1199 r = sd_bus_match_signal_async(
1200 bus,
1201 &c.match,
1202 "org.freedesktop.systemd1",
1203 path,
1204 "org.freedesktop.DBus.Properties",
1205 "PropertiesChanged",
1206 on_properties_changed, NULL, &c);
2897b343 1207 if (r < 0)
1d42b86d 1208 return log_error_errno(r, "Failed to request properties changed signal match: %m");
8a584da2 1209
52ad194e 1210 r = sd_bus_attach_event(bus, c.event, SD_EVENT_PRIORITY_NORMAL);
2897b343 1211 if (r < 0)
1d42b86d 1212 return log_error_errno(r, "Failed to attach bus to event loop: %m");
8a584da2 1213
2897b343
MP		 1214 r = run_context_update(&c, path);
1215 if (r < 0)
1216 return r;
f47781d8 1217
8a584da2 1218 r = sd_event_loop(c.event);
f47781d8 1219 if (r < 0)
e735f4d4 1220 return log_error_errno(r, "Failed to run event loop: %m");
f47781d8 1221
8a584da2
MP		 1222 if (c.forward) {
1223 char last_char = 0;
f47781d8 1224
8a584da2
MP		 1225 r = pty_forward_get_last_char(c.forward, &last_char);
1226 if (r >= 0 && !arg_quiet && last_char != '\n')
1227 fputc('\n', stdout);
1228 }
f47781d8 1229
2897b343
MP		 1230 if (arg_wait && !arg_quiet) {
1231
1232 /* Explicitly destroy the PTY forwarder, so that the PTY device is usable again, in its
1233 * original settings (i.e. proper line breaks), so that we can show the summary in a pretty
1234 * way. */
1235 c.forward = pty_forward_free(c.forward);
1236
8a584da2
MP		 1237 if (!isempty(c.result))
1238 log_info("Finished with result: %s", strna(c.result));
14228c0d 1239
8a584da2
MP		 1240 if (c.exit_code == CLD_EXITED)
1241 log_info("Main processes terminated with: code=%s/status=%i", sigchld_code_to_string(c.exit_code), c.exit_status);
1242 else if (c.exit_code > 0)
1243 log_info("Main processes terminated with: code=%s/status=%s", sigchld_code_to_string(c.exit_code), signal_to_string(c.exit_status));
1244
1245 if (c.inactive_enter_usec > 0 && c.inactive_enter_usec != USEC_INFINITY &&
1246 c.inactive_exit_usec > 0 && c.inactive_exit_usec != USEC_INFINITY &&
1247 c.inactive_enter_usec > c.inactive_exit_usec) {
1248 char ts[FORMAT_TIMESPAN_MAX];
1249 log_info("Service runtime: %s", format_timespan(ts, sizeof(ts), c.inactive_enter_usec - c.inactive_exit_usec, USEC_PER_MSEC));
1250 }
1251
f5e65279 1252 if (c.cpu_usage_nsec != NSEC_INFINITY) {
8a584da2
MP		 1253 char ts[FORMAT_TIMESPAN_MAX];
1254 log_info("CPU time consumed: %s", format_timespan(ts, sizeof(ts), (c.cpu_usage_nsec + NSEC_PER_USEC - 1) / NSEC_PER_USEC, USEC_PER_MSEC));
1255 }
f5e65279
MB		 1256
1257 if (c.ip_ingress_bytes != UINT64_MAX) {
1258 char bytes[FORMAT_BYTES_MAX];
1259 log_info("IP traffic received: %s", format_bytes(bytes, sizeof(bytes), c.ip_ingress_bytes));
1260 }
1261 if (c.ip_egress_bytes != UINT64_MAX) {
1262 char bytes[FORMAT_BYTES_MAX];
1263 log_info("IP traffic sent: %s", format_bytes(bytes, sizeof(bytes), c.ip_egress_bytes));
1264 }
8a584da2
MP		 1265 }
1266
1267 /* Try to propagate the service's return value */
1268 if (c.result && STR_IN_SET(c.result, "success", "exit-code") && c.exit_code == CLD_EXITED)
1269 *retval = c.exit_status;
1270 else
1271 *retval = EXIT_FAILURE;
1272 }
60f067b4
JS		 1273
1274 return 0;
14228c0d
MB		 1275}
1276
6e866b33
MB		 1277static int acquire_invocation_id(sd_bus *bus, sd_id128_t *ret) {
1278 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1279 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
1280 const void *p;
1281 size_t l;
1282 int r;
1283
1284 assert(bus);
1285 assert(ret);
14228c0d 1286
6e866b33
MB		 1287 r = sd_bus_get_property(bus,
1288 "org.freedesktop.systemd1",
1289 "/org/freedesktop/systemd1/unit/self",
1290 "org.freedesktop.systemd1.Unit",
1291 "InvocationID",
1292 &error,
1293 &reply,
1294 "ay");
1295 if (r < 0)
1296 return log_error_errno(r, "Failed to request invocation ID for scope: %s", bus_error_message(&error, r));
1297
1298 r = sd_bus_message_read_array(reply, 'y', &p, &l);
1299 if (r < 0)
1300 return bus_log_parse_error(r);
1301
1302 if (l != sizeof(sd_id128_t))
1303 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid UUID size, %zu != %zu.", l, sizeof(sd_id128_t));
1304
1305 memcpy(ret, p, l);
1306 return 0;
1307}
1308
1309static int start_transient_scope(sd_bus *bus) {
4c89c718
MP		 1310 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1311 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
e3bff60a 1312 _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL;
e735f4d4 1313 _cleanup_strv_free_ char **env = NULL, **user_env = NULL;
f47781d8 1314 _cleanup_free_ char *scope = NULL;
e3bff60a 1315 const char *object = NULL;
6e866b33 1316 sd_id128_t invocation_id;
14228c0d
MB		 1317 int r;
1318
60f067b4 1319 assert(bus);
6e866b33 1320 assert(!strv_isempty(arg_cmdline));
60f067b4 1321
e3bff60a
MP		 1322 r = bus_wait_for_jobs_new(bus, &w);
1323 if (r < 0)
1324 return log_oom();
1325
5eef597e 1326 if (arg_unit) {
b012e921 1327 r = unit_name_mangle_with_suffix(arg_unit, arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN, ".scope", &scope);
e3bff60a
MP		 1328 if (r < 0)
1329 return log_error_errno(r, "Failed to mangle scope name: %m");
db2df898
MP		 1330 } else {
1331 r = make_unit_name(bus, UNIT_SCOPE, &scope);
1332 if (r < 0)
1333 return r;
1334 }
14228c0d 1335
f47781d8 1336 r = sd_bus_message_new_method_call(
e735f4d4
MP		 1337 bus,
1338 &m,
1339 "org.freedesktop.systemd1",
1340 "/org/freedesktop/systemd1",
1341 "org.freedesktop.systemd1.Manager",
1342 "StartTransientUnit");
14228c0d 1343 if (r < 0)
60f067b4 1344 return bus_log_create_error(r);
14228c0d 1345
d9dfd233
MP		 1346 r = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password);
1347 if (r < 0)
1348 return bus_log_create_error(r);
1349
e735f4d4 1350 /* Name and Mode */
f47781d8
MP		 1351 r = sd_bus_message_append(m, "ss", scope, "fail");
1352 if (r < 0)
1353 return bus_log_create_error(r);
1354
e735f4d4 1355 /* Properties */
f47781d8
MP		 1356 r = sd_bus_message_open_container(m, 'a', "(sv)");
1357 if (r < 0)
1358 return bus_log_create_error(r);
1359
1360 r = transient_scope_set_properties(m);
1361 if (r < 0)
52ad194e 1362 return r;
f47781d8
MP		 1363
1364 r = sd_bus_message_close_container(m);
1365 if (r < 0)
1366 return bus_log_create_error(r);
1367
e735f4d4 1368 /* Auxiliary units */
f47781d8 1369 r = sd_bus_message_append(m, "a(sa(sv))", 0);
14228c0d 1370 if (r < 0)
60f067b4 1371 return bus_log_create_error(r);
14228c0d 1372
52ad194e 1373 polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
d9dfd233 1374
e3bff60a 1375 r = sd_bus_call(bus, m, 0, &error, &reply);
6e866b33
MB		 1376 if (r < 0)
1377 return log_error_errno(r, "Failed to start transient scope unit: %s", bus_error_message(&error, -r));
1378
1379 r = sd_bus_message_read(reply, "o", &object);
1380 if (r < 0)
1381 return bus_log_parse_error(r);
1382
1383 r = bus_wait_for_jobs_one(w, object, arg_quiet);
1384 if (r < 0)
e735f4d4 1385 return r;
6e866b33
MB		 1386
1387 r = acquire_invocation_id(bus, &invocation_id);
1388 if (r < 0)
1389 return r;
1390
1391 r = strv_extendf(&user_env, "INVOCATION_ID=" SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(invocation_id));
1392 if (r < 0)
1393 return log_oom();
60f067b4
JS		 1394
1395 if (arg_nice_set) {
f47781d8
MP		 1396 if (setpriority(PRIO_PROCESS, 0, arg_nice) < 0)
1397 return log_error_errno(errno, "Failed to set nice level: %m");
60f067b4
JS		 1398 }
1399
1400 if (arg_exec_group) {
1401 gid_t gid;
1402
6e866b33 1403 r = get_group_creds(&arg_exec_group, &gid, 0);
f47781d8
MP		 1404 if (r < 0)
1405 return log_error_errno(r, "Failed to resolve group %s: %m", arg_exec_group);
60f067b4 1406
f47781d8
MP		 1407 if (setresgid(gid, gid, gid) < 0)
1408 return log_error_errno(errno, "Failed to change GID to " GID_FMT ": %m", gid);
60f067b4
JS		 1409 }
1410
1411 if (arg_exec_user) {
1412 const char *home, *shell;
1413 uid_t uid;
1414 gid_t gid;
1415
6e866b33 1416 r = get_user_creds(&arg_exec_user, &uid, &gid, &home, &shell, USER_CREDS_CLEAN|USER_CREDS_PREFER_NSS);
f47781d8
MP		 1417 if (r < 0)
1418 return log_error_errno(r, "Failed to resolve user %s: %m", arg_exec_user);
60f067b4 1419
8a584da2
MP		 1420 if (home) {
1421 r = strv_extendf(&user_env, "HOME=%s", home);
1422 if (r < 0)
1423 return log_oom();
1424 }
60f067b4 1425
8a584da2
MP		 1426 if (shell) {
1427 r = strv_extendf(&user_env, "SHELL=%s", shell);
1428 if (r < 0)
1429 return log_oom();
1430 }
60f067b4
JS		 1431
1432 r = strv_extendf(&user_env, "USER=%s", arg_exec_user);
1433 if (r < 0)
1434 return log_oom();
14228c0d 1435
60f067b4
JS		 1436 r = strv_extendf(&user_env, "LOGNAME=%s", arg_exec_user);
1437 if (r < 0)
1438 return log_oom();
1439
1440 if (!arg_exec_group) {
f47781d8
MP		 1441 if (setresgid(gid, gid, gid) < 0)
1442 return log_error_errno(errno, "Failed to change GID to " GID_FMT ": %m", gid);
60f067b4
JS		 1443 }
1444
f47781d8
MP		 1445 if (setresuid(uid, uid, uid) < 0)
1446 return log_error_errno(errno, "Failed to change UID to " UID_FMT ": %m", uid);
60f067b4
JS		 1447 }
1448
1449 env = strv_env_merge(3, environ, user_env, arg_environment);
1450 if (!env)
1451 return log_oom();
1452
e735f4d4 1453 if (!arg_quiet)
aa27b158 1454 log_info("Running scope as unit: %s", scope);
60f067b4 1455
6e866b33 1456 execvpe(arg_cmdline[0], arg_cmdline, env);
e735f4d4
MP		 1457
1458 return log_error_errno(errno, "Failed to execute: %m");
14228c0d
MB		 1459}
1460
1d42b86d 1461static int start_transient_trigger(
e735f4d4 1462 sd_bus *bus,
1d42b86d 1463 const char *suffix) {
e735f4d4 1464
4c89c718
MP		 1465 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1466 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
e3bff60a 1467 _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL;
1d42b86d 1468 _cleanup_free_ char *trigger = NULL, *service = NULL;
e3bff60a 1469 const char *object = NULL;
e735f4d4
MP		 1470 int r;
1471
1472 assert(bus);
e735f4d4 1473
e3bff60a
MP		 1474 r = bus_wait_for_jobs_new(bus, &w);
1475 if (r < 0)
1476 return log_oom();
1477
e735f4d4 1478 if (arg_unit) {
e3bff60a 1479 switch (unit_name_to_type(arg_unit)) {
e735f4d4
MP		 1480
1481 case UNIT_SERVICE:
1482 service = strdup(arg_unit);
1483 if (!service)
1484 return log_oom();
1485
1d42b86d 1486 r = unit_name_change_suffix(service, suffix, &trigger);
e3bff60a
MP		 1487 if (r < 0)
1488 return log_error_errno(r, "Failed to change unit suffix: %m");
e735f4d4
MP		 1489 break;
1490
1491 case UNIT_TIMER:
1d42b86d
MB		 1492 trigger = strdup(arg_unit);
1493 if (!trigger)
e735f4d4
MP		 1494 return log_oom();
1495
1d42b86d 1496 r = unit_name_change_suffix(trigger, ".service", &service);
e3bff60a
MP		 1497 if (r < 0)
1498 return log_error_errno(r, "Failed to change unit suffix: %m");
e735f4d4
MP		 1499 break;
1500
1501 default:
b012e921 1502 r = unit_name_mangle_with_suffix(arg_unit, arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN, ".service", &service);
e3bff60a
MP		 1503 if (r < 0)
1504 return log_error_errno(r, "Failed to mangle unit name: %m");
e735f4d4 1505
b012e921 1506 r = unit_name_mangle_with_suffix(arg_unit, arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN, suffix, &trigger);
e3bff60a
MP		 1507 if (r < 0)
1508 return log_error_errno(r, "Failed to mangle unit name: %m");
e735f4d4
MP		 1509
1510 break;
1511 }
db2df898
MP		 1512 } else {
1513 r = make_unit_name(bus, UNIT_SERVICE, &service);
1514 if (r < 0)
1515 return r;
1516
1d42b86d 1517 r = unit_name_change_suffix(service, suffix, &trigger);
db2df898
MP		 1518 if (r < 0)
1519 return log_error_errno(r, "Failed to change unit suffix: %m");
1520 }
e735f4d4
MP		 1521
1522 r = sd_bus_message_new_method_call(
1523 bus,
1524 &m,
1525 "org.freedesktop.systemd1",
1526 "/org/freedesktop/systemd1",
1527 "org.freedesktop.systemd1.Manager",
1528 "StartTransientUnit");
1529 if (r < 0)
1530 return bus_log_create_error(r);
1531
d9dfd233
MP		 1532 r = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password);
1533 if (r < 0)
1534 return bus_log_create_error(r);
1535
e735f4d4 1536 /* Name and Mode */
1d42b86d 1537 r = sd_bus_message_append(m, "ss", trigger, "fail");
e735f4d4
MP		 1538 if (r < 0)
1539 return bus_log_create_error(r);
1540
1541 /* Properties */
1542 r = sd_bus_message_open_container(m, 'a', "(sv)");
1543 if (r < 0)
1544 return bus_log_create_error(r);
1545
1d42b86d
MB		 1546 if (streq(suffix, ".path"))
1547 r = transient_unit_set_properties(m, UNIT_PATH, arg_path_property);
1548 else if (streq(suffix, ".socket"))
1549 r = transient_unit_set_properties(m, UNIT_SOCKET, arg_socket_property);
1550 else if (streq(suffix, ".timer"))
1551 r = transient_timer_set_properties(m);
1552 else
1553 assert_not_reached("Invalid suffix");
e735f4d4 1554 if (r < 0)
52ad194e 1555 return r;
e735f4d4
MP		 1556
1557 r = sd_bus_message_close_container(m);
1558 if (r < 0)
1559 return bus_log_create_error(r);
1560
1561 r = sd_bus_message_open_container(m, 'a', "(sa(sv))");
1562 if (r < 0)
1563 return bus_log_create_error(r);
1564
6e866b33 1565 if (!strv_isempty(arg_cmdline)) {
e735f4d4
MP		 1566 r = sd_bus_message_open_container(m, 'r', "sa(sv)");
1567 if (r < 0)
1568 return bus_log_create_error(r);
1569
1570 r = sd_bus_message_append(m, "s", service);
1571 if (r < 0)
1572 return bus_log_create_error(r);
1573
1574 r = sd_bus_message_open_container(m, 'a', "(sv)");
1575 if (r < 0)
1576 return bus_log_create_error(r);
1577
6e866b33 1578 r = transient_service_set_properties(m, NULL);
e735f4d4 1579 if (r < 0)
52ad194e 1580 return r;
e735f4d4
MP		 1581
1582 r = sd_bus_message_close_container(m);
1583 if (r < 0)
1584 return bus_log_create_error(r);
1585
1586 r = sd_bus_message_close_container(m);
1587 if (r < 0)
1588 return bus_log_create_error(r);
1589 }
1590
1591 r = sd_bus_message_close_container(m);
1592 if (r < 0)
1593 return bus_log_create_error(r);
1594
52ad194e 1595 polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
d9dfd233 1596
e3bff60a 1597 r = sd_bus_call(bus, m, 0, &error, &reply);
6e866b33
MB		 1598 if (r < 0)
1599 return log_error_errno(r, "Failed to start transient %s unit: %s", suffix + 1, bus_error_message(&error, -r));
e735f4d4 1600
e3bff60a
MP		 1601 r = sd_bus_message_read(reply, "o", &object);
1602 if (r < 0)
1603 return bus_log_parse_error(r);
1604
1605 r = bus_wait_for_jobs_one(w, object, arg_quiet);
1606 if (r < 0)
1607 return r;
1608
8a584da2 1609 if (!arg_quiet) {
1d42b86d 1610 log_info("Running %s as unit: %s", suffix + 1, trigger);
6e866b33 1611 if (!strv_isempty(arg_cmdline))
8a584da2
MP		 1612 log_info("Will run service as unit: %s", service);
1613 }
e735f4d4
MP		 1614
1615 return 0;
1616}
1617
6e866b33 1618static int run(int argc, char* argv[]) {
4c89c718 1619 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
6e866b33 1620 _cleanup_free_ char *description = NULL;
8a584da2 1621 int r, retval = EXIT_SUCCESS;
14228c0d
MB		 1622
1623 log_parse_environment();
1624 log_open();
1625
1626 r = parse_argv(argc, argv);
1627 if (r <= 0)
6e866b33
MB		 1628 return r;
1629
1630 if (!strv_isempty(arg_cmdline) && arg_transport == BUS_TRANSPORT_LOCAL) {
1631 _cleanup_free_ char *command = NULL;
14228c0d 1632
db2df898
MP		 1633 /* Patch in an absolute path */
1634
6e866b33
MB		 1635 r = find_binary(arg_cmdline[0], &command);
1636 if (r < 0)
1637 return log_error_errno(r, "Failed to find executable %s: %m", arg_cmdline[0]);
db2df898 1638
6e866b33 1639 free_and_replace(arg_cmdline[0], command);
14228c0d 1640 }
14228c0d
MB		 1641
1642 if (!arg_description) {
6e866b33
MB		 1643 description = strv_join(arg_cmdline, " ");
1644 if (!description)
1645 return log_oom();
14228c0d 1646
f47781d8 1647 if (arg_unit && isempty(description)) {
5fd56512
MP		 1648 r = free_and_strdup(&description, arg_unit);
1649 if (r < 0)
6e866b33 1650 return log_oom();
f47781d8
MP		 1651 }
1652
14228c0d
MB		 1653 arg_description = description;
1654 }
1655
8a584da2
MP		 1656 /* If --wait is used connect via the bus, unconditionally, as ref/unref is not supported via the limited direct
1657 * connection */
f5e65279 1658 if (arg_wait || arg_stdio != ARG_STDIO_NONE)
8a584da2
MP		 1659 r = bus_connect_transport(arg_transport, arg_host, arg_user, &bus);
1660 else
1661 r = bus_connect_transport_systemd(arg_transport, arg_host, arg_user, &bus);
6e866b33
MB		 1662 if (r < 0)
1663 return log_error_errno(r, "Failed to create bus connection: %m");
14228c0d
MB		 1664
1665 if (arg_scope)
6e866b33 1666 r = start_transient_scope(bus);
1d42b86d 1667 else if (arg_path_property)
6e866b33 1668 r = start_transient_trigger(bus, ".path");
1d42b86d 1669 else if (arg_socket_property)
6e866b33 1670 r = start_transient_trigger(bus, ".socket");
bb4f798a 1671 else if (arg_with_timer)
6e866b33 1672 r = start_transient_trigger(bus, ".timer");
14228c0d 1673 else
6e866b33
MB		 1674 r = start_transient_service(bus, &retval);
1675 if (r < 0)
1676 return r;
60f067b4 1677
6e866b33 1678 return retval;
14228c0d 1679}
6e866b33
MB		 1680
1681DEFINE_MAIN_FUNCTION_WITH_POSITIVE_FAILURE(run);
systemd for Proxmox projects