src/systemctl/systemctl.c

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 /***
   4   This file is part of systemd.
   5
   6   Copyright 2010 Lennart Poettering
   7   Copyright 2013 Marc-Antoine Perennou
   8
   9   systemd is free software; you can redistribute it and/or modify it
  10   under the terms of the GNU Lesser General Public License as published by
  11   the Free Software Foundation; either version 2.1 of the License, or
  12   (at your option) any later version.
  13
  14   systemd is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17   Lesser General Public License for more details.
  18
  19   You should have received a copy of the GNU Lesser General Public License
  20   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  21 ***/
  22
  23 #include <sys/reboot.h>
  24 #include <linux/reboot.h>
  25 #include <sys/syscall.h>
  26 #include <stdio.h>
  27 #include <getopt.h>
  28 #include <locale.h>
  29 #include <stdbool.h>
  30 #include <string.h>
  31 #include <errno.h>
  32 #include <sys/ioctl.h>
  33 #include <termios.h>
  34 #include <unistd.h>
  35 #include <fcntl.h>
  36 #include <sys/socket.h>
  37 #include <sys/stat.h>
  38 #include <stddef.h>
  39 #include <sys/prctl.h>
  40 #include <fnmatch.h>
  41
  42 #include "sd-daemon.h"
  43 #include "sd-shutdown.h"
  44 #include "sd-login.h"
  45 #include "sd-bus.h"
  46 #include "log.h"
  47 #include "util.h"
  48 #include "macro.h"
  49 #include "set.h"
  50 #include "utmp-wtmp.h"
  51 #include "special.h"
  52 #include "initreq.h"
  53 #include "path-util.h"
  54 #include "strv.h"
  55 #include "cgroup-show.h"
  56 #include "cgroup-util.h"
  57 #include "list.h"
  58 #include "path-lookup.h"
  59 #include "conf-parser.h"
  60 #include "exit-status.h"
  61 #include "build.h"
  62 #include "unit-name.h"
  63 #include "pager.h"
  64 #include "spawn-ask-password-agent.h"
  65 #include "spawn-polkit-agent.h"
  66 #include "install.h"
  67 #include "logs-show.h"
  68 #include "socket-util.h"
  69 #include "fileio.h"
  70 #include "copy.h"
  71 #include "env-util.h"
  72 #include "bus-util.h"
  73 #include "bus-message.h"
  74 #include "bus-error.h"
  75 #include "bus-common-errors.h"
  76 #include "mkdir.h"
  77 #include "dropin.h"
  78
  79 static char **arg_types = NULL;
  80 static char **arg_states = NULL;
  81 static char **arg_properties = NULL;
  82 static bool arg_all = false;
  83 static enum dependency {
  84         DEPENDENCY_FORWARD,
  85         DEPENDENCY_REVERSE,
  86         DEPENDENCY_AFTER,
  87         DEPENDENCY_BEFORE,
  88         _DEPENDENCY_MAX
  89 } arg_dependency = DEPENDENCY_FORWARD;
  90 static const char *arg_job_mode = "replace";
  91 static UnitFileScope arg_scope = UNIT_FILE_SYSTEM;
  92 static bool arg_no_block = false;
  93 static bool arg_no_legend = false;
  94 static bool arg_no_pager = false;
  95 static bool arg_no_wtmp = false;
  96 static bool arg_no_wall = false;
  97 static bool arg_no_reload = false;
  98 static bool arg_show_types = false;
  99 static bool arg_ignore_inhibitors = false;
 100 static bool arg_dry = false;
 101 static bool arg_quiet = false;
 102 static bool arg_full = false;
 103 static bool arg_recursive = false;
 104 static int arg_force = 0;
 105 static bool arg_ask_password = true;
 106 static bool arg_runtime = false;
 107 static UnitFilePresetMode arg_preset_mode = UNIT_FILE_PRESET_FULL;
 108 static char **arg_wall = NULL;
 109 static const char *arg_kill_who = NULL;
 110 static int arg_signal = SIGTERM;
 111 static const char *arg_root = NULL;
 112 static usec_t arg_when = 0;
 113 static enum action {
 114         _ACTION_INVALID,
 115         ACTION_SYSTEMCTL,
 116         ACTION_HALT,
 117         ACTION_POWEROFF,
 118         ACTION_REBOOT,
 119         ACTION_KEXEC,
 120         ACTION_EXIT,
 121         ACTION_SUSPEND,
 122         ACTION_HIBERNATE,
 123         ACTION_HYBRID_SLEEP,
 124         ACTION_RUNLEVEL2,
 125         ACTION_RUNLEVEL3,
 126         ACTION_RUNLEVEL4,
 127         ACTION_RUNLEVEL5,
 128         ACTION_RESCUE,
 129         ACTION_EMERGENCY,
 130         ACTION_DEFAULT,
 131         ACTION_RELOAD,
 132         ACTION_REEXEC,
 133         ACTION_RUNLEVEL,
 134         ACTION_CANCEL_SHUTDOWN,
 135         _ACTION_MAX
 136 } arg_action = ACTION_SYSTEMCTL;
 137 static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
 138 static char *arg_host = NULL;
 139 static unsigned arg_lines = 10;
 140 static OutputMode arg_output = OUTPUT_SHORT;
 141 static bool arg_plain = false;
 142
 143 static bool original_stdout_is_tty;
 144
 145 static int daemon_reload(sd_bus *bus, char **args);
 146 static int halt_now(enum action a);
 147 static int check_one_unit(sd_bus *bus, const char *name, const char *good_states, bool quiet);
 148
 149 static char** strv_skip_first(char **strv) {
 150         if (strv_length(strv) > 0)
 151                 return strv + 1;
 152         return NULL;
 153 }
 154
 155 static void pager_open_if_enabled(void) {
 156
 157         if (arg_no_pager)
 158                 return;
 159
 160         pager_open(false);
 161 }
 162
 163 static void ask_password_agent_open_if_enabled(void) {
 164
 165         /* Open the password agent as a child process if necessary */
 166
 167         if (!arg_ask_password)
 168                 return;
 169
 170         if (arg_scope != UNIT_FILE_SYSTEM)
 171                 return;
 172
 173         if (arg_transport != BUS_TRANSPORT_LOCAL)
 174                 return;
 175
 176         ask_password_agent_open();
 177 }
 178
 179 #ifdef HAVE_LOGIND
 180 static void polkit_agent_open_if_enabled(void) {
 181
 182         /* Open the polkit agent as a child process if necessary */
 183
 184         if (!arg_ask_password)
 185                 return;
 186
 187         if (arg_scope != UNIT_FILE_SYSTEM)
 188                 return;
 189
 190         if (arg_transport != BUS_TRANSPORT_LOCAL)
 191                 return;
 192
 193         polkit_agent_open();
 194 }
 195 #endif
 196
 197 static int translate_bus_error_to_exit_status(int r, const sd_bus_error *error) {
 198         assert(error);
 199
 200         if (!sd_bus_error_is_set(error))
 201                 return r;
 202
 203         if (sd_bus_error_has_name(error, SD_BUS_ERROR_ACCESS_DENIED) ||
 204             sd_bus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
 205             sd_bus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
 206             sd_bus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
 207                 return EXIT_NOPERMISSION;
 208
 209         if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
 210                 return EXIT_NOTINSTALLED;
 211
 212         if (sd_bus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
 213             sd_bus_error_has_name(error, SD_BUS_ERROR_NOT_SUPPORTED))
 214                 return EXIT_NOTIMPLEMENTED;
 215
 216         if (sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
 217                 return EXIT_NOTCONFIGURED;
 218
 219         if (r != 0)
 220                 return r;
 221
 222         return EXIT_FAILURE;
 223 }
 224
 225 static void warn_wall(enum action a) {
 226         static const char *table[_ACTION_MAX] = {
 227                 [ACTION_HALT]            = "The system is going down for system halt NOW!",
 228                 [ACTION_REBOOT]          = "The system is going down for reboot NOW!",
 229                 [ACTION_POWEROFF]        = "The system is going down for power-off NOW!",
 230                 [ACTION_KEXEC]           = "The system is going down for kexec reboot NOW!",
 231                 [ACTION_RESCUE]          = "The system is going down to rescue mode NOW!",
 232                 [ACTION_EMERGENCY]       = "The system is going down to emergency mode NOW!",
 233                 [ACTION_CANCEL_SHUTDOWN] = "The system shutdown has been cancelled NOW!"
 234         };
 235
 236         if (arg_no_wall)
 237                 return;
 238
 239         if (arg_wall) {
 240                 _cleanup_free_ char *p;
 241
 242                 p = strv_join(arg_wall, " ");
 243                 if (!p) {
 244                         log_oom();
 245                         return;
 246                 }
 247
 248                 if (*p) {
 249                         utmp_wall(p, NULL, NULL);
 250                         return;
 251                 }
 252         }
 253
 254         if (!table[a])
 255                 return;
 256
 257         utmp_wall(table[a], NULL, NULL);
 258 }
 259
 260 static bool avoid_bus(void) {
 261
 262         if (running_in_chroot() > 0)
 263                 return true;
 264
 265         if (sd_booted() <= 0)
 266                 return true;
 267
 268         if (!isempty(arg_root))
 269                 return true;
 270
 271         if (arg_scope == UNIT_FILE_GLOBAL)
 272                 return true;
 273
 274         return false;
 275 }
 276
 277 static int compare_unit_info(const void *a, const void *b) {
 278         const UnitInfo *u = a, *v = b;
 279         const char *d1, *d2;
 280         int r;
 281
 282         /* First, order by machine */
 283         if (!u->machine && v->machine)
 284                 return -1;
 285         if (u->machine && !v->machine)
 286                 return 1;
 287         if (u->machine && v->machine) {
 288                 r = strcasecmp(u->machine, v->machine);
 289                 if (r != 0)
 290                         return r;
 291         }
 292
 293         /* Second, order by unit type */
 294         d1 = strrchr(u->id, '.');
 295         d2 = strrchr(v->id, '.');
 296         if (d1 && d2) {
 297                 r = strcasecmp(d1, d2);
 298                 if (r != 0)
 299                         return r;
 300         }
 301
 302         /* Third, order by name */
 303         return strcasecmp(u->id, v->id);
 304 }
 305
 306 static bool output_show_unit(const UnitInfo *u, char **patterns) {
 307         if (!strv_isempty(patterns)) {
 308                 char **pattern;
 309
 310                 STRV_FOREACH(pattern, patterns)
 311                         if (fnmatch(*pattern, u->id, FNM_NOESCAPE) == 0)
 312                                 goto next;
 313                 return false;
 314         }
 315
 316 next:
 317         if (arg_types) {
 318                 const char *dot;
 319
 320                 dot = strrchr(u->id, '.');
 321                 if (!dot)
 322                         return false;
 323
 324                 if (!strv_find(arg_types, dot+1))
 325                         return false;
 326         }
 327
 328         if (arg_all)
 329                 return true;
 330
 331         if (u->job_id > 0)
 332                 return true;
 333
 334         if (streq(u->active_state, "inactive") || u->following[0])
 335                 return false;
 336
 337         return true;
 338 }
 339
 340 static int output_units_list(const UnitInfo *unit_infos, unsigned c) {
 341         unsigned circle_len = 0, id_len, max_id_len, load_len, active_len, sub_len, job_len, desc_len;
 342         const UnitInfo *u;
 343         unsigned n_shown = 0;
 344         int job_count = 0;
 345
 346         max_id_len = strlen("UNIT");
 347         load_len = strlen("LOAD");
 348         active_len = strlen("ACTIVE");
 349         sub_len = strlen("SUB");
 350         job_len = strlen("JOB");
 351         desc_len = 0;
 352
 353         for (u = unit_infos; u < unit_infos + c; u++) {
 354                 max_id_len = MAX(max_id_len, strlen(u->id) + (u->machine ? strlen(u->machine)+1 : 0));
 355                 load_len = MAX(load_len, strlen(u->load_state));
 356                 active_len = MAX(active_len, strlen(u->active_state));
 357                 sub_len = MAX(sub_len, strlen(u->sub_state));
 358
 359                 if (u->job_id != 0) {
 360                         job_len = MAX(job_len, strlen(u->job_type));
 361                         job_count++;
 362                 }
 363
 364                 if (!arg_no_legend &&
 365                     (streq(u->active_state, "failed") ||
 366                      STR_IN_SET(u->load_state, "error", "not-found", "masked")))
 367                         circle_len = 2;
 368         }
 369
 370         if (!arg_full && original_stdout_is_tty) {
 371                 unsigned basic_len;
 372
 373                 id_len = MIN(max_id_len, 25u);
 374                 basic_len = circle_len + 5 + id_len + 5 + active_len + sub_len;
 375
 376                 if (job_count)
 377                         basic_len += job_len + 1;
 378
 379                 if (basic_len < (unsigned) columns()) {
 380                         unsigned extra_len, incr;
 381                         extra_len = columns() - basic_len;
 382
 383                         /* Either UNIT already got 25, or is fully satisfied.
 384                          * Grant up to 25 to DESC now. */
 385                         incr = MIN(extra_len, 25u);
 386                         desc_len += incr;
 387                         extra_len -= incr;
 388
 389                         /* split the remaining space between UNIT and DESC,
 390                          * but do not give UNIT more than it needs. */
 391                         if (extra_len > 0) {
 392                                 incr = MIN(extra_len / 2, max_id_len - id_len);
 393                                 id_len += incr;
 394                                 desc_len += extra_len - incr;
 395                         }
 396                 }
 397         } else
 398                 id_len = max_id_len;
 399
 400         for (u = unit_infos; u < unit_infos + c; u++) {
 401                 _cleanup_free_ char *e = NULL, *j = NULL;
 402                 const char *on_loaded = "", *off_loaded = "";
 403                 const char *on_active = "", *off_active = "";
 404                 const char *on_circle = "", *off_circle = "";
 405                 const char *id;
 406                 bool circle = false;
 407
 408                 if (!n_shown && !arg_no_legend) {
 409
 410                         if (circle_len > 0)
 411                                 fputs("  ", stdout);
 412
 413                         printf("%-*s %-*s %-*s %-*s ",
 414                                id_len, "UNIT",
 415                                load_len, "LOAD",
 416                                active_len, "ACTIVE",
 417                                sub_len, "SUB");
 418
 419                         if (job_count)
 420                                 printf("%-*s ", job_len, "JOB");
 421
 422                         if (!arg_full && arg_no_pager)
 423                                 printf("%.*s\n", desc_len, "DESCRIPTION");
 424                         else
 425                                 printf("%s\n", "DESCRIPTION");
 426                 }
 427
 428                 n_shown++;
 429
 430                 if (STR_IN_SET(u->load_state, "error", "not-found", "masked")) {
 431                         on_loaded = ansi_highlight_red();
 432                         on_circle = ansi_highlight_yellow();
 433                         off_loaded = off_circle = ansi_highlight_off();
 434                         circle = true;
 435                 }
 436
 437                 if (streq(u->active_state, "failed")) {
 438                         on_circle = on_active = ansi_highlight_red();
 439                         off_circle = off_active = ansi_highlight_off();
 440                         circle = true;
 441                 }
 442
 443                 if (u->machine) {
 444                         j = strjoin(u->machine, ":", u->id, NULL);
 445                         if (!j)
 446                                 return log_oom();
 447
 448                         id = j;
 449                 } else
 450                         id = u->id;
 451
 452                 if (arg_full) {
 453                         e = ellipsize(id, id_len, 33);
 454                         if (!e)
 455                                 return log_oom();
 456
 457                         id = e;
 458                 }
 459
 460                 if (circle_len > 0)
 461                         printf("%s%s%s ", on_circle, circle ? draw_special_char(DRAW_BLACK_CIRCLE) : " ", off_circle);
 462
 463                 printf("%s%-*s%s %s%-*s%s %s%-*s %-*s%s %-*s",
 464                        on_active, id_len, id, off_active,
 465                        on_loaded, load_len, u->load_state, off_loaded,
 466                        on_active, active_len, u->active_state,
 467                        sub_len, u->sub_state, off_active,
 468                        job_count ? job_len + 1 : 0, u->job_id ? u->job_type : "");
 469
 470                 if (desc_len > 0)
 471                         printf("%.*s\n", desc_len, u->description);
 472                 else
 473                         printf("%s\n", u->description);
 474         }
 475
 476         if (!arg_no_legend) {
 477                 const char *on, *off;
 478
 479                 if (n_shown) {
 480                         puts("\n"
 481                              "LOAD   = Reflects whether the unit definition was properly loaded.\n"
 482                              "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
 483                              "SUB    = The low-level unit activation state, values depend on unit type.");
 484                         puts(job_count ? "JOB    = Pending job for the unit.\n" : "");
 485                         on = ansi_highlight();
 486                         off = ansi_highlight_off();
 487                 } else {
 488                         on = ansi_highlight_red();
 489                         off = ansi_highlight_off();
 490                 }
 491
 492                 if (arg_all)
 493                         printf("%s%u loaded units listed.%s\n"
 494                                "To show all installed unit files use 'systemctl list-unit-files'.\n",
 495                                on, n_shown, off);
 496                 else
 497                         printf("%s%u loaded units listed.%s Pass --all to see loaded but inactive units, too.\n"
 498                                "To show all installed unit files use 'systemctl list-unit-files'.\n",
 499                                on, n_shown, off);
 500         }
 501
 502         return 0;
 503 }
 504
 505 static int get_unit_list(
 506                 sd_bus *bus,
 507                 const char *machine,
 508                 char **patterns,
 509                 UnitInfo **unit_infos,
 510                 int c,
 511                 sd_bus_message **_reply) {
 512
 513         _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
 514         _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
 515         _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
 516         size_t size = c;
 517         int r;
 518         UnitInfo u;
 519
 520         assert(bus);
 521         assert(unit_infos);
 522         assert(_reply);
 523
 524         r = sd_bus_message_new_method_call(
 525                         bus,
 526                         &m,
 527                         "org.freedesktop.systemd1",
 528                         "/org/freedesktop/systemd1",
 529                         "org.freedesktop.systemd1.Manager",
 530                         "ListUnitsFiltered");
 531
 532         if (r < 0)
 533                 return bus_log_create_error(r);
 534
 535         r = sd_bus_message_append_strv(m, arg_states);
 536         if (r < 0)
 537                 return bus_log_create_error(r);
 538
 539         r = sd_bus_call(bus, m, 0, &error, &reply);
 540         if (r < 0) {
 541                 log_error("Failed to list units: %s", bus_error_message(&error, r));
 542                 return r;
 543         }
 544
 545         r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssssouso)");
 546         if (r < 0)
 547                 return bus_log_parse_error(r);
 548
 549         while ((r = bus_parse_unit_info(reply, &u)) > 0) {
 550                 u.machine = machine;
 551
 552                 if (!output_show_unit(&u, patterns))
 553                         continue;
 554
 555                 if (!GREEDY_REALLOC(*unit_infos, size, c+1))
 556                         return log_oom();
 557
 558                 (*unit_infos)[c++] = u;
 559         }
 560         if (r < 0)
 561                 return bus_log_parse_error(r);
 562
 563         r = sd_bus_message_exit_container(reply);
 564         if (r < 0)
 565                 return bus_log_parse_error(r);
 566
 567         *_reply = reply;
 568         reply = NULL;
 569
 570         return c;
 571 }
 572
 573 static void message_set_freep(Set **set) {
 574         sd_bus_message *m;
 575
 576         while ((m = set_steal_first(*set)))
 577                 sd_bus_message_unref(m);
 578
 579         set_free(*set);
 580 }
 581
 582 static int get_unit_list_recursive(
 583                 sd_bus *bus,
 584                 char **patterns,
 585                 UnitInfo **_unit_infos,
 586                 Set **_replies,
 587                 char ***_machines) {
 588
 589         _cleanup_free_ UnitInfo *unit_infos = NULL;
 590         _cleanup_(message_set_freep) Set *replies;
 591         sd_bus_message *reply;
 592         int c, r;
 593
 594         assert(bus);
 595         assert(_replies);
 596         assert(_unit_infos);
 597         assert(_machines);
 598
 599         replies = set_new(NULL);
 600         if (!replies)
 601                 return log_oom();
 602
 603         c = get_unit_list(bus, NULL, patterns, &unit_infos, 0, &reply);
 604         if (c < 0)
 605                 return c;
 606
 607         r = set_put(replies, reply);
 608         if (r < 0) {
 609                 sd_bus_message_unref(reply);
 610                 return r;
 611         }
 612
 613         if (arg_recursive) {
 614                 _cleanup_strv_free_ char **machines = NULL;
 615                 char **i;
 616
 617                 r = sd_get_machine_names(&machines);
 618                 if (r < 0)
 619                         return r;
 620
 621                 STRV_FOREACH(i, machines) {
 622                         _cleanup_bus_close_unref_ sd_bus *container = NULL;
 623                         int k;
 624
 625                         r = sd_bus_open_system_machine(&container, *i);
 626                         if (r < 0) {
 627                                 log_error_errno(r, "Failed to connect to container %s: %m", *i);
 628                                 continue;
 629                         }
 630
 631                         k = get_unit_list(container, *i, patterns, &unit_infos, c, &reply);
 632                         if (k < 0)
 633                                 return k;
 634
 635                         c = k;
 636
 637                         r = set_put(replies, reply);
 638                         if (r < 0) {
 639                                 sd_bus_message_unref(reply);
 640                                 return r;
 641                         }
 642                 }
 643
 644                 *_machines = machines;
 645                 machines = NULL;
 646         } else
 647                 *_machines = NULL;
 648
 649         *_unit_infos = unit_infos;
 650         unit_infos = NULL;
 651
 652         *_replies = replies;
 653         replies = NULL;
 654
 655         return c;
 656 }
 657
 658 static int list_units(sd_bus *bus, char **args) {
 659         _cleanup_free_ UnitInfo *unit_infos = NULL;
 660         _cleanup_(message_set_freep) Set *replies = NULL;
 661         _cleanup_strv_free_ char **machines = NULL;
 662         int r;
 663
 664         pager_open_if_enabled();
 665
 666         r = get_unit_list_recursive(bus, strv_skip_first(args), &unit_infos, &replies, &machines);
 667         if (r < 0)
 668                 return r;
 669
 670         qsort_safe(unit_infos, r, sizeof(UnitInfo), compare_unit_info);
 671         return output_units_list(unit_infos, r);
 672 }
 673
 674 static int get_triggered_units(
 675                 sd_bus *bus,
 676                 const char* path,
 677                 char*** ret) {
 678
 679         _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
 680         int r;
 681
 682         r = sd_bus_get_property_strv(
 683                         bus,
 684                         "org.freedesktop.systemd1",
 685                         path,
 686                         "org.freedesktop.systemd1.Unit",
 687                         "Triggers",
 688                         &error,
 689                         ret);
 690
 691         if (r < 0)
 692                 log_error("Failed to determine triggers: %s", bus_error_message(&error, r));
 693
 694         return 0;
 695 }
 696
 697 static int get_listening(
 698                 sd_bus *bus,
 699                 const char* unit_path,
 700                 char*** listening) {
 701
 702         _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
 703         _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
 704         const char *type, *path;
 705         int r, n = 0;
 706
 707         r = sd_bus_get_property(
 708                         bus,
 709                         "org.freedesktop.systemd1",
 710                         unit_path,
 711                         "org.freedesktop.systemd1.Socket",
 712                         "Listen",
 713                         &error,
 714                         &reply,
 715                         "a(ss)");
 716         if (r < 0) {
 717                 log_error("Failed to get list of listening sockets: %s", bus_error_message(&error, r));
 718                 return r;
 719         }
 720
 721         r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ss)");
 722         if (r < 0)
 723                 return bus_log_parse_error(r);
 724
 725         while ((r = sd_bus_message_read(reply, "(ss)", &type, &path)) > 0) {
 726
 727                 r = strv_extend(listening, type);
 728                 if (r < 0)
 729                         return log_oom();
 730
 731                 r = strv_extend(listening, path);
 732                 if (r < 0)
 733                         return log_oom();
 734
 735                 n++;
 736         }
 737         if (r < 0)
 738                 return bus_log_parse_error(r);
 739
 740         r = sd_bus_message_exit_container(reply);
 741         if (r < 0)
 742                 return bus_log_parse_error(r);
 743
 744         return n;
 745 }
 746
 747 struct socket_info {
 748         const char *machine;
 749         const char* id;
 750
 751         char* type;
 752         char* path;
 753
 754         /* Note: triggered is a list here, although it almost certainly
 755          * will always be one unit. Nevertheless, dbus API allows for multiple
 756          * values, so let's follow that. */
 757         char** triggered;
 758
 759         /* The strv above is shared. free is set only in the first one. */
 760         bool own_triggered;
 761 };
 762
 763 static int socket_info_compare(const struct socket_info *a, const struct socket_info *b) {
 764         int o;
 765
 766         assert(a);
 767         assert(b);
 768
 769         if (!a->machine && b->machine)
 770                 return -1;
 771         if (a->machine && !b->machine)
 772                 return 1;
 773         if (a->machine && b->machine) {
 774                 o = strcasecmp(a->machine, b->machine);
 775                 if (o != 0)
 776                         return o;
 777         }
 778
 779         o = strcmp(a->path, b->path);
 780         if (o == 0)
 781                 o = strcmp(a->type, b->type);
 782
 783         return o;
 784 }
 785
 786 static int output_sockets_list(struct socket_info *socket_infos, unsigned cs) {
 787         struct socket_info *s;
 788         unsigned pathlen = strlen("LISTEN"),
 789                 typelen = strlen("TYPE") * arg_show_types,
 790                 socklen = strlen("UNIT"),
 791                 servlen = strlen("ACTIVATES");
 792         const char *on, *off;
 793
 794         for (s = socket_infos; s < socket_infos + cs; s++) {
 795                 unsigned tmp = 0;
 796                 char **a;
 797
 798                 socklen = MAX(socklen, strlen(s->id));
 799                 if (arg_show_types)
 800                         typelen = MAX(typelen, strlen(s->type));
 801                 pathlen = MAX(pathlen, strlen(s->path) + (s->machine ? strlen(s->machine)+1 : 0));
 802
 803                 STRV_FOREACH(a, s->triggered)
 804                         tmp += strlen(*a) + 2*(a != s->triggered);
 805                 servlen = MAX(servlen, tmp);
 806         }
 807
 808         if (cs) {
 809                 if (!arg_no_legend)
 810                         printf("%-*s %-*.*s%-*s %s\n",
 811                                pathlen, "LISTEN",
 812                                typelen + arg_show_types, typelen + arg_show_types, "TYPE ",
 813                                socklen, "UNIT",
 814                                "ACTIVATES");
 815
 816                 for (s = socket_infos; s < socket_infos + cs; s++) {
 817                         _cleanup_free_ char *j = NULL;
 818                         const char *path;
 819                         char **a;
 820
 821                         if (s->machine) {
 822                                 j = strjoin(s->machine, ":", s->path, NULL);
 823                                 if (!j)
 824                                         return log_oom();
 825                                 path = j;
 826                         } else
 827                                 path = s->path;
 828
 829                         if (arg_show_types)
 830                                 printf("%-*s %-*s %-*s",
 831                                        pathlen, path, typelen, s->type, socklen, s->id);
 832                         else
 833                                 printf("%-*s %-*s",
 834                                        pathlen, path, socklen, s->id);
 835                         STRV_FOREACH(a, s->triggered)
 836                                 printf("%s %s",
 837                                        a == s->triggered ? "" : ",", *a);
 838                         printf("\n");
 839                 }
 840
 841                 on = ansi_highlight();
 842                 off = ansi_highlight_off();
 843                 if (!arg_no_legend)
 844                         printf("\n");
 845         } else {
 846                 on = ansi_highlight_red();
 847                 off = ansi_highlight_off();
 848         }
 849
 850         if (!arg_no_legend) {
 851                 printf("%s%u sockets listed.%s\n", on, cs, off);
 852                 if (!arg_all)
 853                         printf("Pass --all to see loaded but inactive sockets, too.\n");
 854         }
 855
 856         return 0;
 857 }
 858
 859 static int list_sockets(sd_bus *bus, char **args) {
 860         _cleanup_(message_set_freep) Set *replies = NULL;
 861         _cleanup_strv_free_ char **machines = NULL;
 862         _cleanup_free_ UnitInfo *unit_infos = NULL;
 863         _cleanup_free_ struct socket_info *socket_infos = NULL;
 864         const UnitInfo *u;
 865         struct socket_info *s;
 866         unsigned cs = 0;
 867         size_t size = 0;
 868         int r = 0, n;
 869
 870         pager_open_if_enabled();
 871
 872         n = get_unit_list_recursive(bus, strv_skip_first(args), &unit_infos, &replies, &machines);
 873         if (n < 0)
 874                 return n;
 875
 876         for (u = unit_infos; u < unit_infos + n; u++) {
 877                 _cleanup_strv_free_ char **listening = NULL, **triggered = NULL;
 878                 int i, c;
 879
 880                 if (!endswith(u->id, ".socket"))
 881                         continue;
 882
 883                 r = get_triggered_units(bus, u->unit_path, &triggered);
 884                 if (r < 0)
 885                         goto cleanup;
 886
 887                 c = get_listening(bus, u->unit_path, &listening);
 888                 if (c < 0) {
 889                         r = c;
 890                         goto cleanup;
 891                 }
 892
 893                 if (!GREEDY_REALLOC(socket_infos, size, cs + c)) {
 894                         r = log_oom();
 895                         goto cleanup;
 896                 }
 897
 898                 for (i = 0; i < c; i++)
 899                         socket_infos[cs + i] = (struct socket_info) {
 900                                 .machine = u->machine,
 901                                 .id = u->id,
 902                                 .type = listening[i*2],
 903                                 .path = listening[i*2 + 1],
 904                                 .triggered = triggered,
 905                                 .own_triggered = i==0,
 906                         };
 907
 908                 /* from this point on we will cleanup those socket_infos */
 909                 cs += c;
 910                 free(listening);
 911                 listening = triggered = NULL; /* avoid cleanup */
 912         }
 913
 914         qsort_safe(socket_infos, cs, sizeof(struct socket_info),
 915                    (__compar_fn_t) socket_info_compare);
 916
 917         output_sockets_list(socket_infos, cs);
 918
 919  cleanup:
 920         assert(cs == 0 || socket_infos);
 921         for (s = socket_infos; s < socket_infos + cs; s++) {
 922                 free(s->type);
 923                 free(s->path);
 924                 if (s->own_triggered)
 925                         strv_free(s->triggered);
 926         }
 927
 928         return r;
 929 }
 930
 931 static int get_next_elapse(
 932                 sd_bus *bus,
 933                 const char *path,
 934                 dual_timestamp *next) {
 935
 936         _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
 937         dual_timestamp t;
 938         int r;
 939
 940         assert(bus);
 941         assert(path);
 942         assert(next);
 943
 944         r = sd_bus_get_property_trivial(
 945                         bus,
 946                         "org.freedesktop.systemd1",
 947                         path,
 948                         "org.freedesktop.systemd1.Timer",
 949                         "NextElapseUSecMonotonic",
 950                         &error,
 951                         't',
 952                         &t.monotonic);
 953         if (r < 0) {
 954                 log_error("Failed to get next elapsation time: %s", bus_error_message(&error, r));
 955                 return r;
 956         }
 957
 958         r = sd_bus_get_property_trivial(
 959                         bus,
 960                         "org.freedesktop.systemd1",
 961                         path,
 962                         "org.freedesktop.systemd1.Timer",
 963                         "NextElapseUSecRealtime",
 964                         &error,
 965                         't',
 966                         &t.realtime);
 967         if (r < 0) {
 968                 log_error("Failed to get next elapsation time: %s", bus_error_message(&error, r));
 969                 return r;
 970         }
 971
 972         *next = t;
 973         return 0;
 974 }
 975
 976 static int get_last_trigger(
 977                 sd_bus *bus,
 978                 const char *path,
 979                 usec_t *last) {
 980
 981         _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
 982         int r;
 983
 984         assert(bus);
 985         assert(path);
 986         assert(last);
 987
 988         r = sd_bus_get_property_trivial(
 989                         bus,
 990                         "org.freedesktop.systemd1",
 991                         path,
 992                         "org.freedesktop.systemd1.Timer",
 993                         "LastTriggerUSec",
 994                         &error,
 995                         't',
 996                         last);
 997         if (r < 0) {
 998                 log_error("Failed to get last trigger time: %s", bus_error_message(&error, r));
 999                 return r;
1000         }
1001
1002         return 0;
1003 }
1004
1005 struct timer_info {
1006         const char* machine;
1007         const char* id;
1008         usec_t next_elapse;
1009         usec_t last_trigger;
1010         char** triggered;
1011 };
1012
1013 static int timer_info_compare(const struct timer_info *a, const struct timer_info *b) {
1014         int o;
1015
1016         assert(a);
1017         assert(b);
1018
1019         if (!a->machine && b->machine)
1020                 return -1;
1021         if (a->machine && !b->machine)
1022                 return 1;
1023         if (a->machine && b->machine) {
1024                 o = strcasecmp(a->machine, b->machine);
1025                 if (o != 0)
1026                         return o;
1027         }
1028
1029         if (a->next_elapse < b->next_elapse)
1030                 return -1;
1031         if (a->next_elapse > b->next_elapse)
1032                 return 1;
1033
1034         return strcmp(a->id, b->id);
1035 }
1036
1037 static int output_timers_list(struct timer_info *timer_infos, unsigned n) {
1038         struct timer_info *t;
1039         unsigned
1040                 nextlen = strlen("NEXT"),
1041                 leftlen = strlen("LEFT"),
1042                 lastlen = strlen("LAST"),
1043                 passedlen = strlen("PASSED"),
1044                 unitlen = strlen("UNIT"),
1045                 activatelen = strlen("ACTIVATES");
1046
1047         const char *on, *off;
1048
1049         assert(timer_infos || n == 0);
1050
1051         for (t = timer_infos; t < timer_infos + n; t++) {
1052                 unsigned ul = 0;
1053                 char **a;
1054
1055                 if (t->next_elapse > 0) {
1056                         char tstamp[FORMAT_TIMESTAMP_MAX] = "", trel[FORMAT_TIMESTAMP_RELATIVE_MAX] = "";
1057
1058                         format_timestamp(tstamp, sizeof(tstamp), t->next_elapse);
1059                         nextlen = MAX(nextlen, strlen(tstamp) + 1);
1060
1061                         format_timestamp_relative(trel, sizeof(trel), t->next_elapse);
1062                         leftlen = MAX(leftlen, strlen(trel));
1063                 }
1064
1065                 if (t->last_trigger > 0) {
1066                         char tstamp[FORMAT_TIMESTAMP_MAX] = "", trel[FORMAT_TIMESTAMP_RELATIVE_MAX] = "";
1067
1068                         format_timestamp(tstamp, sizeof(tstamp), t->last_trigger);
1069                         lastlen = MAX(lastlen, strlen(tstamp) + 1);
1070
1071                         format_timestamp_relative(trel, sizeof(trel), t->last_trigger);
1072                         passedlen = MAX(passedlen, strlen(trel));
1073                 }
1074
1075                 unitlen = MAX(unitlen, strlen(t->id) + (t->machine ? strlen(t->machine)+1 : 0));
1076
1077                 STRV_FOREACH(a, t->triggered)
1078                         ul += strlen(*a) + 2*(a != t->triggered);
1079
1080                 activatelen = MAX(activatelen, ul);
1081         }
1082
1083         if (n > 0) {
1084                 if (!arg_no_legend)
1085                         printf("%-*s %-*s %-*s %-*s %-*s %s\n",
1086                                nextlen,   "NEXT",
1087                                leftlen,   "LEFT",
1088                                lastlen,   "LAST",
1089                                passedlen, "PASSED",
1090                                unitlen,   "UNIT",
1091                                           "ACTIVATES");
1092
1093                 for (t = timer_infos; t < timer_infos + n; t++) {
1094                         _cleanup_free_ char *j = NULL;
1095                         const char *unit;
1096                         char tstamp1[FORMAT_TIMESTAMP_MAX] = "n/a", trel1[FORMAT_TIMESTAMP_RELATIVE_MAX] = "n/a";
1097                         char tstamp2[FORMAT_TIMESTAMP_MAX] = "n/a", trel2[FORMAT_TIMESTAMP_RELATIVE_MAX] = "n/a";
1098                         char **a;
1099
1100                         format_timestamp(tstamp1, sizeof(tstamp1), t->next_elapse);
1101                         format_timestamp_relative(trel1, sizeof(trel1), t->next_elapse);
1102
1103                         format_timestamp(tstamp2, sizeof(tstamp2), t->last_trigger);
1104                         format_timestamp_relative(trel2, sizeof(trel2), t->last_trigger);
1105
1106                         if (t->machine) {
1107                                 j = strjoin(t->machine, ":", t->id, NULL);
1108                                 if (!j)
1109                                         return log_oom();
1110                                 unit = j;
1111                         } else
1112                                 unit = t->id;
1113
1114                         printf("%-*s %-*s %-*s %-*s %-*s",
1115                                nextlen, tstamp1, leftlen, trel1, lastlen, tstamp2, passedlen, trel2, unitlen, unit);
1116
1117                         STRV_FOREACH(a, t->triggered)
1118                                 printf("%s %s",
1119                                        a == t->triggered ? "" : ",", *a);
1120                         printf("\n");
1121                 }
1122
1123                 on = ansi_highlight();
1124                 off = ansi_highlight_off();
1125                 if (!arg_no_legend)
1126                         printf("\n");
1127         } else {
1128                 on = ansi_highlight_red();
1129                 off = ansi_highlight_off();
1130         }
1131
1132         if (!arg_no_legend) {
1133                 printf("%s%u timers listed.%s\n", on, n, off);
1134                 if (!arg_all)
1135                         printf("Pass --all to see loaded but inactive timers, too.\n");
1136         }
1137
1138         return 0;
1139 }
1140
1141 static usec_t calc_next_elapse(dual_timestamp *nw, dual_timestamp *next) {
1142         usec_t next_elapse;
1143
1144         assert(nw);
1145         assert(next);
1146
1147         if (next->monotonic != USEC_INFINITY && next->monotonic > 0) {
1148                 usec_t converted;
1149
1150                 if (next->monotonic > nw->monotonic)
1151                         converted = nw->realtime + (next->monotonic - nw->monotonic);
1152                 else
1153                         converted = nw->realtime - (nw->monotonic - next->monotonic);
1154
1155                 if (next->realtime != USEC_INFINITY && next->realtime > 0)
1156                         next_elapse = MIN(converted, next->realtime);
1157                 else
1158                         next_elapse = converted;
1159
1160         } else
1161                 next_elapse = next->realtime;
1162
1163         return next_elapse;
1164 }
1165
1166 static int list_timers(sd_bus *bus, char **args) {
1167         _cleanup_(message_set_freep) Set *replies = NULL;
1168         _cleanup_strv_free_ char **machines = NULL;
1169         _cleanup_free_ struct timer_info *timer_infos = NULL;
1170         _cleanup_free_ UnitInfo *unit_infos = NULL;
1171         struct timer_info *t;
1172         const UnitInfo *u;
1173         size_t size = 0;
1174         int n, c = 0;
1175         dual_timestamp nw;
1176         int r = 0;
1177
1178         pager_open_if_enabled();
1179
1180         n = get_unit_list_recursive(bus, strv_skip_first(args), &unit_infos, &replies, &machines);
1181         if (n < 0)
1182                 return n;
1183
1184         dual_timestamp_get(&nw);
1185
1186         for (u = unit_infos; u < unit_infos + n; u++) {
1187                 _cleanup_strv_free_ char **triggered = NULL;
1188                 dual_timestamp next = {};
1189                 usec_t m, last = 0;
1190
1191                 if (!endswith(u->id, ".timer"))
1192                         continue;
1193
1194                 r = get_triggered_units(bus, u->unit_path, &triggered);
1195                 if (r < 0)
1196                         goto cleanup;
1197
1198                 r = get_next_elapse(bus, u->unit_path, &next);
1199                 if (r < 0)
1200                         goto cleanup;
1201
1202                 get_last_trigger(bus, u->unit_path, &last);
1203
1204                 if (!GREEDY_REALLOC(timer_infos, size, c+1)) {
1205                         r = log_oom();
1206                         goto cleanup;
1207                 }
1208
1209                 m = calc_next_elapse(&nw, &next);
1210
1211                 timer_infos[c++] = (struct timer_info) {
1212                         .machine = u->machine,
1213                         .id = u->id,
1214                         .next_elapse = m,
1215                         .last_trigger = last,
1216                         .triggered = triggered,
1217                 };
1218
1219                 triggered = NULL; /* avoid cleanup */
1220         }
1221
1222         qsort_safe(timer_infos, c, sizeof(struct timer_info),
1223                    (__compar_fn_t) timer_info_compare);
1224
1225         output_timers_list(timer_infos, c);
1226
1227  cleanup:
1228         for (t = timer_infos; t < timer_infos + c; t++)
1229                 strv_free(t->triggered);
1230
1231         return r;
1232 }
1233
1234 static int compare_unit_file_list(const void *a, const void *b) {
1235         const char *d1, *d2;
1236         const UnitFileList *u = a, *v = b;
1237
1238         d1 = strrchr(u->path, '.');
1239         d2 = strrchr(v->path, '.');
1240
1241         if (d1 && d2) {
1242                 int r;
1243
1244                 r = strcasecmp(d1, d2);
1245                 if (r != 0)
1246                         return r;
1247         }
1248
1249         return strcasecmp(basename(u->path), basename(v->path));
1250 }
1251
1252 static bool output_show_unit_file(const UnitFileList *u, char **patterns) {
1253         if (!strv_isempty(patterns)) {
1254                 char **pattern;
1255
1256                 STRV_FOREACH(pattern, patterns)
1257                         if (fnmatch(*pattern, basename(u->path), FNM_NOESCAPE) == 0)
1258                                 goto next;
1259                 return false;
1260         }
1261
1262 next:
1263         if (!strv_isempty(arg_types)) {
1264                 const char *dot;
1265
1266                 dot = strrchr(u->path, '.');
1267                 if (!dot)
1268                         return false;
1269
1270                 if (!strv_find(arg_types, dot+1))
1271                         return false;
1272         }
1273
1274         if (!strv_isempty(arg_states)) {
1275                 if (!strv_find(arg_states, unit_file_state_to_string(u->state)))
1276                         return false;
1277         }
1278
1279         return true;
1280 }
1281
1282 static void output_unit_file_list(const UnitFileList *units, unsigned c) {
1283         unsigned max_id_len, id_cols, state_cols;
1284         const UnitFileList *u;
1285
1286         max_id_len = strlen("UNIT FILE");
1287         state_cols = strlen("STATE");
1288
1289         for (u = units; u < units + c; u++) {
1290                 max_id_len = MAX(max_id_len, strlen(basename(u->path)));
1291                 state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state)));
1292         }
1293
1294         if (!arg_full) {
1295                 unsigned basic_cols;
1296
1297                 id_cols = MIN(max_id_len, 25u);
1298                 basic_cols = 1 + id_cols + state_cols;
1299                 if (basic_cols < (unsigned) columns())
1300                         id_cols += MIN(columns() - basic_cols, max_id_len - id_cols);
1301         } else
1302                 id_cols = max_id_len;
1303
1304         if (!arg_no_legend)
1305                 printf("%-*s %-*s\n",
1306                        id_cols, "UNIT FILE",
1307                        state_cols, "STATE");
1308
1309         for (u = units; u < units + c; u++) {
1310                 _cleanup_free_ char *e = NULL;
1311                 const char *on, *off;
1312                 const char *id;
1313
1314                 if (u->state == UNIT_FILE_MASKED ||
1315                     u->state == UNIT_FILE_MASKED_RUNTIME ||
1316                     u->state == UNIT_FILE_DISABLED ||
1317                     u->state == UNIT_FILE_INVALID) {
1318                         on  = ansi_highlight_red();
1319                         off = ansi_highlight_off();
1320                 } else if (u->state == UNIT_FILE_ENABLED) {
1321                         on  = ansi_highlight_green();
1322                         off = ansi_highlight_off();
1323                 } else
1324                         on = off = "";
1325
1326                 id = basename(u->path);
1327
1328                 e = arg_full ? NULL : ellipsize(id, id_cols, 33);
1329
1330                 printf("%-*s %s%-*s%s\n",
1331                        id_cols, e ? e : id,
1332                        on, state_cols, unit_file_state_to_string(u->state), off);
1333         }
1334
1335         if (!arg_no_legend)
1336                 printf("\n%u unit files listed.\n", c);
1337 }
1338
1339 static int list_unit_files(sd_bus *bus, char **args) {
1340         _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1341         _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1342         _cleanup_free_ UnitFileList *units = NULL;
1343         UnitFileList *unit;
1344         size_t size = 0;
1345         unsigned c = 0;
1346         const char *state;
1347         char *path;
1348         int r;
1349
1350         pager_open_if_enabled();
1351
1352         if (avoid_bus()) {
1353                 Hashmap *h;
1354                 UnitFileList *u;
1355                 Iterator i;
1356                 unsigned n_units;
1357
1358                 h = hashmap_new(&string_hash_ops);
1359                 if (!h)
1360                         return log_oom();
1361
1362                 r = unit_file_get_list(arg_scope, arg_root, h);
1363                 if (r < 0) {
1364                         unit_file_list_free(h);
1365                         log_error_errno(r, "Failed to get unit file list: %m");
1366                         return r;
1367                 }
1368
1369                 n_units = hashmap_size(h);
1370
1371                 units = new(UnitFileList, n_units);
1372                 if (!units && n_units > 0) {
1373                         unit_file_list_free(h);
1374                         return log_oom();
1375                 }
1376
1377                 HASHMAP_FOREACH(u, h, i) {
1378                         if (!output_show_unit_file(u, strv_skip_first(args)))
1379                                 continue;
1380
1381                         units[c++] = *u;
1382                         free(u);
1383                 }
1384
1385                 assert(c <= n_units);
1386                 hashmap_free(h);
1387         } else {
1388                 r = sd_bus_call_method(
1389                                 bus,
1390                                 "org.freedesktop.systemd1",
1391                                 "/org/freedesktop/systemd1",
1392                                 "org.freedesktop.systemd1.Manager",
1393                                 "ListUnitFiles",
1394                                 &error,
1395                                 &reply,
1396                                 NULL);
1397                 if (r < 0) {
1398                         log_error("Failed to list unit files: %s", bus_error_message(&error, r));
1399                         return r;
1400                 }
1401
1402                 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ss)");
1403                 if (r < 0)
1404                         return bus_log_parse_error(r);
1405
1406                 while ((r = sd_bus_message_read(reply, "(ss)", &path, &state)) > 0) {
1407
1408                         if (!GREEDY_REALLOC(units, size, c + 1))
1409                                 return log_oom();
1410
1411                         units[c] = (struct UnitFileList) {
1412                                 path,
1413                                 unit_file_state_from_string(state)
1414                         };
1415
1416                         if (output_show_unit_file(&units[c], strv_skip_first(args)))
1417                                 c ++;
1418
1419                 }
1420                 if (r < 0)
1421                         return bus_log_parse_error(r);
1422
1423                 r = sd_bus_message_exit_container(reply);
1424                 if (r < 0)
1425                         return bus_log_parse_error(r);
1426         }
1427
1428         qsort_safe(units, c, sizeof(UnitFileList), compare_unit_file_list);
1429         output_unit_file_list(units, c);
1430
1431         if (avoid_bus()) {
1432                 for (unit = units; unit < units + c; unit++)
1433                         free(unit->path);
1434         }
1435
1436         return 0;
1437 }
1438
1439 static int list_dependencies_print(const char *name, int level, unsigned int branches, bool last) {
1440         _cleanup_free_ char *n = NULL;
1441         size_t max_len = MAX(columns(),20u);
1442         size_t len = 0;
1443         int i;
1444
1445         if (!arg_plain) {
1446
1447                 for (i = level - 1; i >= 0; i--) {
1448                         len += 2;
1449                         if (len > max_len - 3 && !arg_full) {
1450                                 printf("%s...\n",max_len % 2 ? "" : " ");
1451                                 return 0;
1452                         }
1453                         printf("%s", draw_special_char(branches & (1 << i) ? DRAW_TREE_VERTICAL : DRAW_TREE_SPACE));
1454                 }
1455                 len += 2;
1456
1457                 if (len > max_len - 3 && !arg_full) {
1458                         printf("%s...\n",max_len % 2 ? "" : " ");
1459                         return 0;
1460                 }
1461
1462                 printf("%s", draw_special_char(last ? DRAW_TREE_RIGHT : DRAW_TREE_BRANCH));
1463         }
1464
1465         if (arg_full){
1466                 printf("%s\n", name);
1467                 return 0;
1468         }
1469
1470         n = ellipsize(name, max_len-len, 100);
1471         if (!n)
1472                 return log_oom();
1473
1474         printf("%s\n", n);
1475         return 0;
1476 }
1477
1478 static int list_dependencies_get_dependencies(sd_bus *bus, const char *name, char ***deps) {
1479
1480         static const char *dependencies[_DEPENDENCY_MAX] = {
1481                 [DEPENDENCY_FORWARD] = "Requires\0"
1482                                        "RequiresOverridable\0"
1483                                        "Requisite\0"
1484                                        "RequisiteOverridable\0"
1485                                        "Wants\0"
1486                                        "BindsTo\0",
1487                 [DEPENDENCY_REVERSE] = "RequiredBy\0"
1488                                        "RequiredByOverridable\0"
1489                                        "WantedBy\0"
1490                                        "PartOf\0"
1491                                        "BoundBy\0",
1492                 [DEPENDENCY_AFTER]   = "After\0",
1493                 [DEPENDENCY_BEFORE]  = "Before\0",
1494         };
1495
1496         _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1497         _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1498         _cleanup_strv_free_ char **ret = NULL;
1499         _cleanup_free_ char *path = NULL;
1500         int r;
1501
1502         assert(bus);
1503         assert(name);
1504         assert(deps);
1505         assert_cc(ELEMENTSOF(dependencies) == _DEPENDENCY_MAX);
1506
1507         path = unit_dbus_path_from_name(name);
1508         if (!path)
1509                 return log_oom();
1510
1511         r = sd_bus_call_method(
1512                         bus,
1513                         "org.freedesktop.systemd1",
1514                         path,
1515                         "org.freedesktop.DBus.Properties",
1516                         "GetAll",
1517                         &error,
1518                         &reply,
1519                         "s", "org.freedesktop.systemd1.Unit");
1520         if (r < 0) {
1521                 log_error("Failed to get properties of %s: %s", name, bus_error_message(&error, r));
1522                 return r;
1523         }
1524
1525         r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{sv}");
1526         if (r < 0)
1527                 return bus_log_parse_error(r);
1528
1529         while ((r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) {
1530                 const char *prop;
1531
1532                 r = sd_bus_message_read(reply, "s", &prop);
1533                 if (r < 0)
1534                         return bus_log_parse_error(r);
1535
1536                 if (!nulstr_contains(dependencies[arg_dependency], prop)) {
1537                         r = sd_bus_message_skip(reply, "v");
1538                         if (r < 0)
1539                                 return bus_log_parse_error(r);
1540                 } else {
1541
1542                         r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_VARIANT, "as");
1543                         if (r < 0)
1544                                 return bus_log_parse_error(r);
1545
1546                         r = bus_message_read_strv_extend(reply, &ret);
1547                         if (r < 0)
1548                                 return bus_log_parse_error(r);
1549
1550                         r = sd_bus_message_exit_container(reply);
1551                         if (r < 0)
1552                                 return bus_log_parse_error(r);
1553                 }
1554
1555                 r = sd_bus_message_exit_container(reply);
1556                 if (r < 0)
1557                         return bus_log_parse_error(r);
1558
1559         }
1560         if (r < 0)
1561                 return bus_log_parse_error(r);
1562
1563         r = sd_bus_message_exit_container(reply);
1564         if (r < 0)
1565                 return bus_log_parse_error(r);
1566
1567         *deps = ret;
1568         ret = NULL;
1569
1570         return 0;
1571 }
1572
1573 static int list_dependencies_compare(const void *_a, const void *_b) {
1574         const char **a = (const char**) _a, **b = (const char**) _b;
1575
1576         if (unit_name_to_type(*a) == UNIT_TARGET && unit_name_to_type(*b) != UNIT_TARGET)
1577                 return 1;
1578         if (unit_name_to_type(*a) != UNIT_TARGET && unit_name_to_type(*b) == UNIT_TARGET)
1579                 return -1;
1580
1581         return strcasecmp(*a, *b);
1582 }
1583
1584 static int list_dependencies_one(
1585                 sd_bus *bus,
1586                 const char *name,
1587                 int level,
1588                 char ***units,
1589                 unsigned int branches) {
1590
1591         _cleanup_strv_free_ char **deps = NULL;
1592         char **c;
1593         int r = 0;
1594
1595         assert(bus);
1596         assert(name);
1597         assert(units);
1598
1599         r = strv_extend(units, name);
1600         if (r < 0)
1601                 return log_oom();
1602
1603         r = list_dependencies_get_dependencies(bus, name, &deps);
1604         if (r < 0)
1605                 return r;
1606
1607         qsort_safe(deps, strv_length(deps), sizeof (char*), list_dependencies_compare);
1608
1609         STRV_FOREACH(c, deps) {
1610                 int state;
1611
1612                 if (strv_contains(*units, *c)) {
1613                         if (!arg_plain) {
1614                                 r = list_dependencies_print("...", level + 1, (branches << 1) | (c[1] == NULL ? 0 : 1), 1);
1615                                 if (r < 0)
1616                                         return r;
1617                         }
1618                         continue;
1619                 }
1620
1621                 state = check_one_unit(bus, *c, "activating\0active\0reloading\0", true);
1622                 if (state > 0)
1623                         printf("%s%s%s ", ansi_highlight_green(), draw_special_char(DRAW_BLACK_CIRCLE), ansi_highlight_off());
1624                 else
1625                         printf("%s%s%s ", ansi_highlight_red(), draw_special_char(DRAW_BLACK_CIRCLE), ansi_highlight_off());
1626
1627                 r = list_dependencies_print(*c, level, branches, c[1] == NULL);
1628                 if (r < 0)
1629                         return r;
1630
1631                 if (arg_all || unit_name_to_type(*c) == UNIT_TARGET) {
1632                        r = list_dependencies_one(bus, *c, level + 1, units, (branches << 1) | (c[1] == NULL ? 0 : 1));
1633                        if (r < 0)
1634                                return r;
1635                 }
1636         }
1637
1638         if (!arg_plain)
1639                 strv_remove(*units, name);
1640
1641         return 0;
1642 }
1643
1644 static int list_dependencies(sd_bus *bus, char **args) {
1645         _cleanup_strv_free_ char **units = NULL;
1646         _cleanup_free_ char *unit = NULL;
1647         const char *u;
1648
1649         assert(bus);
1650
1651         if (args[1]) {
1652                 unit = unit_name_mangle(args[1], MANGLE_NOGLOB);
1653                 if (!unit)
1654                         return log_oom();
1655                 u = unit;
1656         } else
1657                 u = SPECIAL_DEFAULT_TARGET;
1658
1659         pager_open_if_enabled();
1660
1661         puts(u);
1662
1663         return list_dependencies_one(bus, u, 0, &units, 0);
1664 }
1665
1666 struct machine_info {
1667         bool is_host;
1668         char *name;
1669         char *state;
1670         char *control_group;
1671         uint32_t n_failed_units;
1672         uint32_t n_jobs;
1673         usec_t timestamp;
1674 };
1675
1676 static const struct bus_properties_map machine_info_property_map[] = {
1677         { "SystemState",        "s", NULL, offsetof(struct machine_info, state)          },
1678         { "NJobs",              "u", NULL, offsetof(struct machine_info, n_jobs)         },
1679         { "NFailedUnits",       "u", NULL, offsetof(struct machine_info, n_failed_units) },
1680         { "ControlGroup",       "s", NULL, offsetof(struct machine_info, control_group)  },
1681         { "UserspaceTimestamp", "t", NULL, offsetof(struct machine_info, timestamp)      },
1682         {}
1683 };
1684
1685 static void free_machines_list(struct machine_info *machine_infos, int n) {
1686         int i;
1687
1688         if (!machine_infos)
1689                 return;
1690
1691         for (i = 0; i < n; i++) {
1692                 free(machine_infos[i].name);
1693                 free(machine_infos[i].state);
1694                 free(machine_infos[i].control_group);
1695         }
1696
1697         free(machine_infos);
1698 }
1699
1700 static int compare_machine_info(const void *a, const void *b) {
1701         const struct machine_info *u = a, *v = b;
1702
1703         if (u->is_host != v->is_host)
1704                 return u->is_host > v->is_host ? -1 : 1;
1705
1706         return strcasecmp(u->name, v->name);
1707 }
1708
1709 static int get_machine_properties(sd_bus *bus, struct machine_info *mi) {
1710         _cleanup_bus_close_unref_ sd_bus *container = NULL;
1711         int r;
1712
1713         assert(mi);
1714
1715         if (!bus) {
1716                 r = sd_bus_open_system_machine(&container, mi->name);
1717                 if (r < 0)
1718                         return r;
1719
1720                 bus = container;
1721         }
1722
1723         r = bus_map_all_properties(bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", machine_info_property_map, mi);
1724         if (r < 0)
1725                 return r;
1726
1727         return 0;
1728 }
1729
1730 static bool output_show_machine(const char *name, char **patterns) {
1731         char **i;
1732
1733         assert(name);
1734
1735         if (strv_isempty(patterns))
1736                 return true;
1737
1738         STRV_FOREACH(i, patterns)
1739                 if (fnmatch(*i, name, FNM_NOESCAPE) == 0)
1740                         return true;
1741
1742         return false;
1743 }
1744
1745 static int get_machine_list(
1746                 sd_bus *bus,
1747                 struct machine_info **_machine_infos,
1748                 char **patterns) {
1749
1750         struct machine_info *machine_infos = NULL;
1751         _cleanup_strv_free_ char **m = NULL;
1752         _cleanup_free_ char *hn = NULL;
1753         size_t sz = 0;
1754         char **i;
1755         int c = 0;
1756
1757         hn = gethostname_malloc();
1758         if (!hn)
1759                 return log_oom();
1760
1761         if (output_show_machine(hn, patterns)) {
1762                 if (!GREEDY_REALLOC0(machine_infos, sz, c+1))
1763                         return log_oom();
1764
1765                 machine_infos[c].is_host = true;
1766                 machine_infos[c].name = hn;
1767                 hn = NULL;
1768
1769                 get_machine_properties(bus, &machine_infos[c]);
1770                 c++;
1771         }
1772
1773         sd_get_machine_names(&m);
1774         STRV_FOREACH(i, m) {
1775                 _cleanup_free_ char *class = NULL;
1776
1777                 if (!output_show_machine(*i, patterns))
1778                         continue;
1779
1780                 sd_machine_get_class(*i, &class);
1781                 if (!streq_ptr(class, "container"))
1782                         continue;
1783
1784                 if (!GREEDY_REALLOC0(machine_infos, sz, c+1)) {
1785                         free_machines_list(machine_infos, c);
1786                         return log_oom();
1787                 }
1788
1789                 machine_infos[c].is_host = false;
1790                 machine_infos[c].name = strdup(*i);
1791                 if (!machine_infos[c].name) {
1792                         free_machines_list(machine_infos, c);
1793                         return log_oom();
1794                 }
1795
1796                 get_machine_properties(NULL, &machine_infos[c]);
1797                 c++;
1798         }
1799
1800         *_machine_infos = machine_infos;
1801         return c;
1802 }
1803
1804 static void output_machines_list(struct machine_info *machine_infos, unsigned n) {
1805         struct machine_info *m;
1806         unsigned
1807                 circle_len = 0,
1808                 namelen = sizeof("NAME") - 1,
1809                 statelen = sizeof("STATE") - 1,
1810                 failedlen = sizeof("FAILED") - 1,
1811                 jobslen = sizeof("JOBS") - 1;
1812
1813         assert(machine_infos || n == 0);
1814
1815         for (m = machine_infos; m < machine_infos + n; m++) {
1816                 namelen = MAX(namelen, strlen(m->name) + (m->is_host ? sizeof(" (host)") - 1 : 0));
1817                 statelen = MAX(statelen, m->state ? strlen(m->state) : 0);
1818                 failedlen = MAX(failedlen, DECIMAL_STR_WIDTH(m->n_failed_units));
1819                 jobslen = MAX(jobslen, DECIMAL_STR_WIDTH(m->n_jobs));
1820
1821                 if (!arg_no_legend && !streq_ptr(m->state, "running"))
1822                         circle_len = 2;
1823         }
1824
1825         if (!arg_no_legend) {
1826                 if (circle_len > 0)
1827                         fputs("  ", stdout);
1828
1829                 printf("%-*s %-*s %-*s %-*s\n",
1830                          namelen, "NAME",
1831                         statelen, "STATE",
1832                        failedlen, "FAILED",
1833                          jobslen, "JOBS");
1834         }
1835
1836         for (m = machine_infos; m < machine_infos + n; m++) {
1837                 const char *on_state = "", *off_state = "";
1838                 const char *on_failed = "", *off_failed = "";
1839                 bool circle = false;
1840
1841                 if (streq_ptr(m->state, "degraded")) {
1842                         on_state = ansi_highlight_red();
1843                         off_state = ansi_highlight_off();
1844                         circle = true;
1845                 } else if (!streq_ptr(m->state, "running")) {
1846                         on_state = ansi_highlight_yellow();
1847                         off_state = ansi_highlight_off();
1848                         circle = true;
1849                 }
1850
1851                 if (m->n_failed_units > 0) {
1852                         on_failed = ansi_highlight_red();
1853                         off_failed = ansi_highlight_off();
1854                 } else
1855                         on_failed = off_failed = "";
1856
1857                 if (circle_len > 0)
1858                         printf("%s%s%s ", on_state, circle ? draw_special_char(DRAW_BLACK_CIRCLE) : " ", off_state);
1859
1860                 if (m->is_host)
1861                         printf("%-*s (host) %s%-*s%s %s%*u%s %*u\n",
1862                                (int) (namelen - (sizeof(" (host)")-1)), strna(m->name),
1863                                on_state, statelen, strna(m->state), off_state,
1864                                on_failed, failedlen, m->n_failed_units, off_failed,
1865                                jobslen, m->n_jobs);
1866                 else
1867                         printf("%-*s %s%-*s%s %s%*u%s %*u\n",
1868                                namelen, strna(m->name),
1869                                on_state, statelen, strna(m->state), off_state,
1870                                on_failed, failedlen, m->n_failed_units, off_failed,
1871                                jobslen, m->n_jobs);
1872         }
1873
1874         if (!arg_no_legend)
1875                 printf("\n%u machines listed.\n", n);
1876 }
1877
1878 static int list_machines(sd_bus *bus, char **args) {
1879         struct machine_info *machine_infos = NULL;
1880         int r;
1881
1882         assert(bus);
1883
1884         if (geteuid() != 0) {
1885                 log_error("Must be root.");
1886                 return -EPERM;
1887         }
1888
1889         pager_open_if_enabled();
1890
1891         r = get_machine_list(bus, &machine_infos, strv_skip_first(args));
1892         if (r < 0)
1893                 return r;
1894
1895         qsort_safe(machine_infos, r, sizeof(struct machine_info), compare_machine_info);
1896         output_machines_list(machine_infos, r);
1897         free_machines_list(machine_infos, r);
1898
1899         return 0;
1900 }
1901
1902 static int get_default(sd_bus *bus, char **args) {
1903         _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1904         _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1905         _cleanup_free_ char *_path = NULL;
1906         const char *path;
1907         int r;
1908
1909         if (!bus || avoid_bus()) {
1910                 r = unit_file_get_default(arg_scope, arg_root, &_path);
1911                 if (r < 0)
1912                         return log_error_errno(r, "Failed to get default target: %m");
1913                 path = _path;
1914
1915         } else {
1916                 r = sd_bus_call_method(
1917                                 bus,
1918                                 "org.freedesktop.systemd1",
1919                                 "/org/freedesktop/systemd1",
1920                                 "org.freedesktop.systemd1.Manager",
1921                                 "GetDefaultTarget",
1922                                 &error,
1923                                 &reply,
1924                                 NULL);
1925                 if (r < 0) {
1926                         log_error("Failed to get default target: %s", bus_error_message(&error, -r));
1927                         return r;
1928                 }
1929
1930                 r = sd_bus_message_read(reply, "s", &path);
1931                 if (r < 0)
1932                         return bus_log_parse_error(r);
1933         }
1934
1935         if (path)
1936                 printf("%s\n", path);
1937
1938         return 0;
1939 }
1940
1941 static void dump_unit_file_changes(const UnitFileChange *changes, unsigned n_changes) {
1942         unsigned i;
1943
1944         assert(changes || n_changes == 0);
1945
1946         for (i = 0; i < n_changes; i++) {
1947                 if (changes[i].type == UNIT_FILE_SYMLINK)
1948                         log_info("Created symlink from %s to %s.", changes[i].path, changes[i].source);
1949                 else
1950                         log_info("Removed symlink %s.", changes[i].path);
1951         }
1952 }
1953
1954 static int deserialize_and_dump_unit_file_changes(sd_bus_message *m) {
1955         const char *type, *path, *source;
1956         int r;
1957
1958         r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sss)");
1959         if (r < 0)
1960                 return bus_log_parse_error(r);
1961
1962         while ((r = sd_bus_message_read(m, "(sss)", &type, &path, &source)) > 0) {
1963                 if (!arg_quiet) {
1964                         if (streq(type, "symlink"))
1965                                 log_info("Created symlink from %s to %s.", path, source);
1966                         else
1967                                 log_info("Removed symlink %s.", path);
1968                 }
1969         }
1970         if (r < 0)
1971                 return bus_log_parse_error(r);
1972
1973         r = sd_bus_message_exit_container(m);
1974         if (r < 0)
1975                 return bus_log_parse_error(r);
1976
1977         return 0;
1978 }
1979
1980 static int set_default(sd_bus *bus, char **args) {
1981         _cleanup_free_ char *unit = NULL;
1982         UnitFileChange *changes = NULL;
1983         unsigned n_changes = 0;
1984         int r;
1985
1986         unit = unit_name_mangle_with_suffix(args[1], MANGLE_NOGLOB, ".target");
1987         if (!unit)
1988                 return log_oom();
1989
1990         if (!bus || avoid_bus()) {
1991                 r = unit_file_set_default(arg_scope, arg_root, unit, true, &changes, &n_changes);
1992                 if (r < 0)
1993                         return log_error_errno(r, "Failed to set default target: %m");
1994
1995                 if (!arg_quiet)
1996                         dump_unit_file_changes(changes, n_changes);
1997
1998                 r = 0;
1999         } else {
2000                 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL, *m = NULL;
2001                 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2002
2003                 r = sd_bus_message_new_method_call(
2004                                 bus,
2005                                 &m,
2006                                 "org.freedesktop.systemd1",
2007                                 "/org/freedesktop/systemd1",
2008                                 "org.freedesktop.systemd1.Manager",
2009                                 "SetDefaultTarget");
2010                 if (r < 0)
2011                         return bus_log_create_error(r);
2012
2013                 r = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password);
2014                 if (r < 0)
2015                         return bus_log_create_error(r);
2016
2017                 r = sd_bus_message_append(m, "sb", unit, 1);
2018                 if (r < 0)
2019                         return bus_log_create_error(r);
2020
2021                 r = sd_bus_call(bus, m, 0, &error, &reply);
2022                 if (r < 0) {
2023                         log_error("Failed to set default target: %s", bus_error_message(&error, -r));
2024                         return r;
2025                 }
2026
2027                 r = deserialize_and_dump_unit_file_changes(reply);
2028                 if (r < 0)
2029                         return r;
2030
2031                 /* Try to reload if enabled */
2032                 if (!arg_no_reload)
2033                         r = daemon_reload(bus, args);
2034                 else
2035                         r = 0;
2036         }
2037
2038         unit_file_changes_free(changes, n_changes);
2039
2040         return r;
2041 }
2042
2043 struct job_info {
2044         uint32_t id;
2045         const char *name, *type, *state;
2046 };
2047
2048 static void output_jobs_list(const struct job_info* jobs, unsigned n, bool skipped) {
2049         unsigned id_len, unit_len, type_len, state_len;
2050         const struct job_info *j;
2051         const char *on, *off;
2052         bool shorten = false;
2053
2054         assert(n == 0 || jobs);
2055
2056         if (n == 0) {
2057                 on = ansi_highlight_green();
2058                 off = ansi_highlight_off();
2059
2060                 printf("%sNo jobs %s.%s\n", on, skipped ? "listed" : "running", off);
2061                 return;
2062         }
2063
2064         pager_open_if_enabled();
2065
2066         id_len = strlen("JOB");
2067         unit_len = strlen("UNIT");
2068         type_len = strlen("TYPE");
2069         state_len = strlen("STATE");
2070
2071         for (j = jobs; j < jobs + n; j++) {
2072                 uint32_t id = j->id;
2073                 assert(j->name && j->type && j->state);
2074
2075                 id_len = MAX(id_len, DECIMAL_STR_WIDTH(id));
2076                 unit_len = MAX(unit_len, strlen(j->name));
2077                 type_len = MAX(type_len, strlen(j->type));
2078                 state_len = MAX(state_len, strlen(j->state));
2079         }
2080
2081         if (!arg_full && id_len + 1 + unit_len + type_len + 1 + state_len > columns()) {
2082                 unit_len = MAX(33u, columns() - id_len - type_len - state_len - 3);
2083                 shorten = true;
2084         }
2085
2086         if (!arg_no_legend)
2087                 printf("%*s %-*s %-*s %-*s\n",
2088                        id_len, "JOB",
2089                        unit_len, "UNIT",
2090                        type_len, "TYPE",
2091                        state_len, "STATE");
2092
2093         for (j = jobs; j < jobs + n; j++) {
2094                 _cleanup_free_ char *e = NULL;
2095
2096                 if (streq(j->state, "running")) {
2097                         on = ansi_highlight();
2098                         off = ansi_highlight_off();
2099                 } else
2100                         on = off = "";
2101
2102                 e = shorten ? ellipsize(j->name, unit_len, 33) : NULL;
2103                 printf("%*u %s%-*s%s %-*s %s%-*s%s\n",
2104                        id_len, j->id,
2105                        on, unit_len, e ? e : j->name, off,
2106                        type_len, j->type,
2107                        on, state_len, j->state, off);
2108         }
2109
2110         if (!arg_no_legend) {
2111                 on = ansi_highlight();
2112                 off = ansi_highlight_off();
2113
2114                 printf("\n%s%u jobs listed%s.\n", on, n, off);
2115         }
2116 }
2117
2118 static bool output_show_job(struct job_info *job, char **patterns) {
2119         char **pattern;
2120
2121         assert(job);
2122
2123         if (strv_isempty(patterns))
2124                 return true;
2125
2126         STRV_FOREACH(pattern, patterns)
2127                 if (fnmatch(*pattern, job->name, FNM_NOESCAPE) == 0)
2128                         return true;
2129         return false;
2130 }
2131
2132 static int list_jobs(sd_bus *bus, char **args) {
2133         _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2134         _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2135         const char *name, *type, *state, *job_path, *unit_path;
2136         _cleanup_free_ struct job_info *jobs = NULL;
2137         size_t size = 0;
2138         unsigned c = 0;
2139         uint32_t id;
2140         int r;
2141         bool skipped = false;
2142
2143         r = sd_bus_call_method(
2144                         bus,
2145                         "org.freedesktop.systemd1",
2146                         "/org/freedesktop/systemd1",
2147                         "org.freedesktop.systemd1.Manager",
2148                         "ListJobs",
2149                         &error,
2150                         &reply,
2151                         NULL);
2152         if (r < 0) {
2153                 log_error("Failed to list jobs: %s", bus_error_message(&error, r));
2154                 return r;
2155         }
2156
2157         r = sd_bus_message_enter_container(reply, 'a', "(usssoo)");
2158         if (r < 0)
2159                 return bus_log_parse_error(r);
2160
2161         while ((r = sd_bus_message_read(reply, "(usssoo)", &id, &name, &type, &state, &job_path, &unit_path)) > 0) {
2162                 struct job_info job = { id, name, type, state };
2163
2164                 if (!output_show_job(&job, strv_skip_first(args))) {
2165                         skipped = true;
2166                         continue;
2167                 }
2168
2169                 if (!GREEDY_REALLOC(jobs, size, c + 1))
2170                         return log_oom();
2171
2172                 jobs[c++] = job;
2173         }
2174         if (r < 0)
2175                 return bus_log_parse_error(r);
2176
2177         r = sd_bus_message_exit_container(reply);
2178         if (r < 0)
2179                 return bus_log_parse_error(r);
2180
2181         output_jobs_list(jobs, c, skipped);
2182         return r;
2183 }
2184
2185 static int cancel_job(sd_bus *bus, char **args) {
2186         _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2187         char **name;
2188         int r = 0;
2189
2190         assert(args);
2191
2192         if (strv_length(args) <= 1)
2193                 return daemon_reload(bus, args);
2194
2195         STRV_FOREACH(name, args+1) {
2196                 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
2197                 uint32_t id;
2198                 int q;
2199
2200                 q = safe_atou32(*name, &id);
2201                 if (q < 0)
2202                         return log_error_errno(q, "Failed to parse job id \"%s\": %m", *name);
2203
2204                 q = sd_bus_message_new_method_call(
2205                                 bus,
2206                                 &m,
2207                                 "org.freedesktop.systemd1",
2208                                 "/org/freedesktop/systemd1",
2209                                 "org.freedesktop.systemd1.Manager",
2210                                 "CancelJob");
2211                 if (q < 0)
2212                         return bus_log_create_error(q);
2213
2214                 q = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password);
2215                 if (q < 0)
2216                         return bus_log_create_error(1);
2217
2218                 q = sd_bus_message_append(m, "u", id);
2219                 if (q < 0)
2220                         return bus_log_create_error(q);
2221
2222                 q = sd_bus_call(bus, m, 0, &error, NULL);
2223                 if (q < 0) {
2224                         log_error("Failed to cancel job %"PRIu32": %s", id, bus_error_message(&error, q));
2225                         if (r == 0)
2226                                 r = q;
2227                 }
2228         }
2229
2230         return r;
2231 }
2232
2233 static int need_daemon_reload(sd_bus *bus, const char *unit) {
2234         _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2235         const char *path;
2236         int b, r;
2237
2238         /* We ignore all errors here, since this is used to show a
2239          * warning only */
2240
2241         /* We don't use unit_dbus_path_from_name() directly since we
2242          * don't want to load the unit if it isn't loaded. */
2243
2244         r = sd_bus_call_method(
2245                         bus,
2246                         "org.freedesktop.systemd1",
2247                         "/org/freedesktop/systemd1",
2248                         "org.freedesktop.systemd1.Manager",
2249                         "GetUnit",
2250                         NULL,
2251                         &reply,
2252                         "s", unit);
2253         if (r < 0)
2254                 return r;
2255
2256         r = sd_bus_message_read(reply, "o", &path);
2257         if (r < 0)
2258                 return r;
2259
2260         r = sd_bus_get_property_trivial(
2261                         bus,
2262                         "org.freedesktop.systemd1",
2263                         path,
2264                         "org.freedesktop.systemd1.Unit",
2265                         "NeedDaemonReload",
2266                         NULL,
2267                         'b', &b);
2268         if (r < 0)
2269                 return r;
2270
2271         return b;
2272 }
2273
2274 static void warn_unit_file_changed(const char *name) {
2275         log_warning("%sWarning:%s %s changed on disk. Run 'systemctl%s daemon-reload' to reload units.",
2276                     ansi_highlight_red(),
2277                     ansi_highlight_off(),
2278                     name,
2279                     arg_scope == UNIT_FILE_SYSTEM ? "" : " --user");
2280 }
2281
2282 static int unit_file_find_path(LookupPaths *lp, const char *unit_name, char **unit_path) {
2283         char **p;
2284
2285         assert(lp);
2286         assert(unit_name);
2287         assert(unit_path);
2288
2289         STRV_FOREACH(p, lp->unit_path) {
2290                 _cleanup_free_ char *path;
2291
2292                 path = path_join(arg_root, *p, unit_name);
2293                 if (!path)
2294                         return log_oom();
2295
2296                 if (access(path, F_OK) == 0) {
2297                         *unit_path = path;
2298                         path = NULL;
2299                         return 1;
2300                 }
2301         }
2302
2303         return 0;
2304 }
2305
2306 static int unit_find_paths(sd_bus *bus,
2307                            const char *unit_name,
2308                            bool avoid_bus_cache,
2309                            LookupPaths *lp,
2310                            char **fragment_path,
2311                            char ***dropin_paths) {
2312         int r;
2313
2314         /**
2315          * Finds where the unit is defined on disk. Returns 0 if the unit
2316          * is not found. Returns 1 if it is found, and sets
2317          * - the path to the unit in *path, if it exists on disk,
2318          * - and a strv of existing drop-ins in *dropins,
2319          *   if the arg is not NULL and any dropins were found.
2320          */
2321
2322         assert(unit_name);
2323         assert(fragment_path);
2324         assert(lp);
2325
2326         if (!avoid_bus_cache && !unit_name_is_template(unit_name)) {
2327                 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2328                 _cleanup_free_ char *unit = NULL;
2329                 _cleanup_free_ char *path = NULL;
2330                 _cleanup_strv_free_ char **dropins = NULL;
2331
2332                 unit = unit_dbus_path_from_name(unit_name);
2333                 if (!unit)
2334                         return log_oom();
2335
2336                 if (need_daemon_reload(bus, unit_name) > 0)
2337                         warn_unit_file_changed(unit_name);
2338
2339                 r = sd_bus_get_property_string(
2340                                 bus,
2341                                 "org.freedesktop.systemd1",
2342                                 unit,
2343                                 "org.freedesktop.systemd1.Unit",
2344                                 "FragmentPath",
2345                                 &error,
2346                                 &path);
2347                 if (r < 0)
2348                         return log_error_errno(r, "Failed to get FragmentPath: %s", bus_error_message(&error, r));
2349
2350                 r = sd_bus_get_property_strv(
2351                                 bus,
2352                                 "org.freedesktop.systemd1",
2353                                 unit,
2354                                 "org.freedesktop.systemd1.Unit",
2355                                 "DropInPaths",
2356                                 &error,
2357                                 &dropins);
2358                 if (r < 0)
2359                         return log_error_errno(r, "Failed to get DropInPaths: %s", bus_error_message(&error, r));
2360
2361                 r = 0;
2362                 if (!isempty(path)) {
2363                         *fragment_path = path;
2364                         path = NULL;
2365                         r = 1;
2366                 }
2367
2368                 if (dropin_paths && !strv_isempty(dropins)) {
2369                         *dropin_paths = dropins;
2370                         dropins = NULL;
2371                         r = 1;
2372                 }
2373         } else {
2374                 _cleanup_set_free_ Set *names;
2375
2376                 names = set_new(NULL);
2377                 if (!names)
2378                         return -ENOMEM;
2379
2380                 r = set_put(names, unit_name);
2381                 if (r < 0)
2382                         return r;
2383
2384                 r = unit_file_find_path(lp, unit_name, fragment_path);
2385                 if (r < 0)
2386                         return r;
2387
2388                 if (r == 0) {
2389                         _cleanup_free_ char *template;
2390
2391                         template = unit_name_template(unit_name);
2392                         if (!template)
2393                                 return log_oom();
2394
2395                         if (!streq(template, unit_name)) {
2396                                 r = unit_file_find_path(lp, template, fragment_path);
2397                                 if (r < 0)
2398                                         return r;
2399                         }
2400                 }
2401
2402                 if (dropin_paths)
2403                         r = unit_file_find_dropin_paths(lp->unit_path, NULL, names, dropin_paths);
2404         }
2405
2406         return r;
2407 }
2408
2409 static int check_one_unit(sd_bus *bus, const char *name, const char *good_states, bool quiet) {
2410         _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2411         _cleanup_free_ char *n = NULL, *state = NULL;
2412         const char *path;
2413         int r;
2414
2415         assert(name);
2416
2417         n = unit_name_mangle(name, MANGLE_NOGLOB);
2418         if (!n)
2419                 return log_oom();
2420
2421         /* We don't use unit_dbus_path_from_name() directly since we
2422          * don't want to load the unit if it isn't loaded. */
2423
2424         r = sd_bus_call_method(
2425                         bus,
2426                         "org.freedesktop.systemd1",
2427                         "/org/freedesktop/systemd1",
2428                         "org.freedesktop.systemd1.Manager",
2429                         "GetUnit",
2430                         NULL,
2431                         &reply,
2432                         "s", n);
2433         if (r < 0) {
2434                 if (!quiet)
2435                         puts("unknown");
2436                 return 0;
2437         }
2438
2439         r = sd_bus_message_read(reply, "o", &path);
2440         if (r < 0)
2441                 return bus_log_parse_error(r);
2442
2443         r = sd_bus_get_property_string(
2444                         bus,
2445                         "org.freedesktop.systemd1",
2446                         path,
2447                         "org.freedesktop.systemd1.Unit",
2448                         "ActiveState",
2449                         NULL,
2450                         &state);
2451         if (r < 0) {
2452                 if (!quiet)
2453                         puts("unknown");
2454                 return 0;
2455         }
2456
2457         if (!quiet)
2458                 puts(state);
2459
2460         return nulstr_contains(good_states, state);
2461 }
2462
2463 static int check_triggering_units(
2464                 sd_bus *bus,
2465                 const char *name) {
2466
2467         _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2468         _cleanup_free_ char *path = NULL, *n = NULL, *state = NULL;
2469         _cleanup_strv_free_ char **triggered_by = NULL;
2470         bool print_warning_label = true;
2471         char **i;
2472         int r;
2473
2474         n = unit_name_mangle(name, MANGLE_NOGLOB);
2475         if (!n)
2476                 return log_oom();
2477
2478         path = unit_dbus_path_from_name(n);
2479         if (!path)
2480                 return log_oom();
2481
2482         r = sd_bus_get_property_string(
2483                         bus,
2484                         "org.freedesktop.systemd1",
2485                         path,
2486                         "org.freedesktop.systemd1.Unit",
2487                         "LoadState",
2488                         &error,
2489                         &state);
2490         if (r < 0) {
2491                 log_error("Failed to get load state of %s: %s", n, bus_error_message(&error, r));
2492                 return r;
2493         }
2494
2495         if (streq(state, "masked"))
2496                 return 0;
2497
2498         r = sd_bus_get_property_strv(
2499                         bus,
2500                         "org.freedesktop.systemd1",
2501                         path,
2502                         "org.freedesktop.systemd1.Unit",
2503                         "TriggeredBy",
2504                         &error,
2505                         &triggered_by);
2506         if (r < 0) {
2507                 log_error("Failed to get triggered by array of %s: %s", n, bus_error_message(&error, r));
2508                 return r;
2509         }
2510
2511         STRV_FOREACH(i, triggered_by) {
2512                 r = check_one_unit(bus, *i, "active\0reloading\0", true);
2513                 if (r < 0)
2514                         return log_error_errno(r, "Failed to check unit: %m");
2515
2516                 if (r == 0)
2517                         continue;
2518
2519                 if (print_warning_label) {
2520                         log_warning("Warning: Stopping %s, but it can still be activated by:", n);
2521                         print_warning_label = false;
2522                 }
2523
2524                 log_warning("  %s", *i);
2525         }
2526
2527         return 0;
2528 }
2529
2530 static const struct {
2531         const char *verb;
2532         const char *method;
2533 } unit_actions[] = {
2534         { "start",                 "StartUnit" },
2535         { "stop",                  "StopUnit" },
2536         { "condstop",              "StopUnit" },
2537         { "reload",                "ReloadUnit" },
2538         { "restart",               "RestartUnit" },
2539         { "try-restart",           "TryRestartUnit" },
2540         { "condrestart",           "TryRestartUnit" },
2541         { "reload-or-restart",     "ReloadOrRestartUnit" },
2542         { "reload-or-try-restart", "ReloadOrTryRestartUnit" },
2543         { "condreload",            "ReloadOrTryRestartUnit" },
2544         { "force-reload",          "ReloadOrTryRestartUnit" }
2545 };
2546
2547 static const char *verb_to_method(const char *verb) {
2548        uint i;
2549
2550        for (i = 0; i < ELEMENTSOF(unit_actions); i++)
2551                 if (streq_ptr(unit_actions[i].verb, verb))
2552                         return unit_actions[i].method;
2553
2554        return "StartUnit";
2555 }
2556
2557 static const char *method_to_verb(const char *method) {
2558        uint i;
2559
2560        for (i = 0; i < ELEMENTSOF(unit_actions); i++)
2561                 if (streq_ptr(unit_actions[i].method, method))
2562                         return unit_actions[i].verb;
2563
2564        return "n/a";
2565 }
2566
2567 static int start_unit_one(
2568                 sd_bus *bus,
2569                 const char *method,
2570                 const char *name,
2571                 const char *mode,
2572                 sd_bus_error *error,
2573                 BusWaitForJobs *w) {
2574
2575         _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
2576         const char *path;
2577         int r;
2578
2579         assert(method);
2580         assert(name);
2581         assert(mode);
2582         assert(error);
2583
2584         log_debug("Calling manager for %s on %s, %s", method, name, mode);
2585
2586         r = sd_bus_message_new_method_call(
2587                         bus,
2588                         &m,
2589                         "org.freedesktop.systemd1",
2590                         "/org/freedesktop/systemd1",
2591                         "org.freedesktop.systemd1.Manager",
2592                         method);
2593         if (r < 0)
2594                 return bus_log_create_error(r);
2595
2596         r = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password);
2597         if (r < 0)
2598                 return bus_log_create_error(r);
2599
2600         r = sd_bus_message_append(m, "ss", name, mode);
2601         if (r < 0)
2602                 return bus_log_create_error(r);
2603
2604         r = sd_bus_call(bus, m, 0, error, &reply);
2605         if (r < 0) {
2606                 const char *verb;
2607
2608                 if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
2609                         /* There's always a fallback possible for
2610                          * legacy actions. */
2611                         return -EADDRNOTAVAIL;
2612
2613                 verb = method_to_verb(method);
2614
2615                 log_error("Failed to %s %s: %s", verb, name, bus_error_message(error, r));
2616                 return r;
2617         }
2618
2619         r = sd_bus_message_read(reply, "o", &path);
2620         if (r < 0)
2621                 return bus_log_parse_error(r);
2622
2623         if (need_daemon_reload(bus, name) > 0)
2624                 warn_unit_file_changed(name);
2625
2626         if (w) {
2627                 log_debug("Adding %s to the set", path);
2628                 r = bus_wait_for_jobs_add(w, path);
2629                 if (r < 0)
2630                         return log_oom();
2631         }
2632
2633         return 0;
2634 }
2635
2636 static int expand_names(sd_bus *bus, char **names, const char* suffix, char ***ret) {
2637
2638         _cleanup_strv_free_ char **mangled = NULL, **globs = NULL;
2639         char **name;
2640         int r = 0, i;
2641
2642         STRV_FOREACH(name, names) {
2643                 char *t;
2644
2645                 if (suffix)
2646                         t = unit_name_mangle_with_suffix(*name, MANGLE_GLOB, suffix);
2647                 else
2648                         t = unit_name_mangle(*name, MANGLE_GLOB);
2649                 if (!t)
2650                         return log_oom();
2651
2652                 if (string_is_glob(t))
2653                         r = strv_consume(&globs, t);
2654                 else
2655                         r = strv_consume(&mangled, t);
2656                 if (r < 0)
2657                         return log_oom();
2658         }
2659
2660         /* Query the manager only if any of the names are a glob, since
2661          * this is fairly expensive */
2662         if (!strv_isempty(globs)) {
2663                 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2664                 _cleanup_free_ UnitInfo *unit_infos = NULL;
2665
2666                 if (!bus)
2667                         return log_error_errno(ENOTSUP, "Unit name globbing without bus is not implemented.");
2668
2669                 r = get_unit_list(bus, NULL, globs, &unit_infos, 0, &reply);
2670                 if (r < 0)
2671                         return r;
2672
2673                 for (i = 0; i < r; i++)
2674                         if (strv_extend(&mangled, unit_infos[i].id) < 0)
2675                                 return log_oom();
2676         }
2677
2678         *ret = mangled;
2679         mangled = NULL; /* do not free */
2680
2681         return 0;
2682 }
2683
2684 static const struct {
2685         const char *target;
2686         const char *verb;
2687         const char *mode;
2688 } action_table[_ACTION_MAX] = {
2689         [ACTION_HALT]         = { SPECIAL_HALT_TARGET,         "halt",         "replace-irreversibly" },
2690         [ACTION_POWEROFF]     = { SPECIAL_POWEROFF_TARGET,     "poweroff",     "replace-irreversibly" },
2691         [ACTION_REBOOT]       = { SPECIAL_REBOOT_TARGET,       "reboot",       "replace-irreversibly" },
2692         [ACTION_KEXEC]        = { SPECIAL_KEXEC_TARGET,        "kexec",        "replace-irreversibly" },
2693         [ACTION_RUNLEVEL2]    = { SPECIAL_RUNLEVEL2_TARGET,    NULL,           "isolate" },
2694         [ACTION_RUNLEVEL3]    = { SPECIAL_RUNLEVEL3_TARGET,    NULL,           "isolate" },
2695         [ACTION_RUNLEVEL4]    = { SPECIAL_RUNLEVEL4_TARGET,    NULL,           "isolate" },
2696         [ACTION_RUNLEVEL5]    = { SPECIAL_RUNLEVEL5_TARGET,    NULL,           "isolate" },
2697         [ACTION_RESCUE]       = { SPECIAL_RESCUE_TARGET,       "rescue",       "isolate" },
2698         [ACTION_EMERGENCY]    = { SPECIAL_EMERGENCY_TARGET,    "emergency",    "isolate" },
2699         [ACTION_DEFAULT]      = { SPECIAL_DEFAULT_TARGET,      "default",      "isolate" },
2700         [ACTION_EXIT]         = { SPECIAL_EXIT_TARGET,         "exit",         "replace-irreversibly" },
2701         [ACTION_SUSPEND]      = { SPECIAL_SUSPEND_TARGET,      "suspend",      "replace-irreversibly" },
2702         [ACTION_HIBERNATE]    = { SPECIAL_HIBERNATE_TARGET,    "hibernate",    "replace-irreversibly" },
2703         [ACTION_HYBRID_SLEEP] = { SPECIAL_HYBRID_SLEEP_TARGET, "hybrid-sleep", "replace-irreversibly" },
2704 };
2705
2706 static enum action verb_to_action(const char *verb) {
2707         enum action i;
2708
2709         for (i = _ACTION_INVALID; i < _ACTION_MAX; i++)
2710                 if (streq_ptr(action_table[i].verb, verb))
2711                         return i;
2712
2713         return _ACTION_INVALID;
2714 }
2715
2716 static int start_unit(sd_bus *bus, char **args) {
2717         _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL;
2718         const char *method, *mode, *one_name, *suffix = NULL;
2719         _cleanup_strv_free_ char **names = NULL;
2720         char **name;
2721         int r = 0;
2722
2723         assert(bus);
2724
2725         ask_password_agent_open_if_enabled();
2726
2727         if (arg_action == ACTION_SYSTEMCTL) {
2728                 enum action action;
2729                 method = verb_to_method(args[0]);
2730                 action = verb_to_action(args[0]);
2731
2732                 if (streq(args[0], "isolate")) {
2733                         mode = "isolate";
2734                         suffix = ".target";
2735                 } else
2736                         mode = action_table[action].mode ?: arg_job_mode;
2737
2738                 one_name = action_table[action].target;
2739         } else {
2740                 assert(arg_action < ELEMENTSOF(action_table));
2741                 assert(action_table[arg_action].target);
2742
2743                 method = "StartUnit";
2744
2745                 mode = action_table[arg_action].mode;
2746                 one_name = action_table[arg_action].target;
2747         }
2748
2749         if (one_name)
2750                 names = strv_new(one_name, NULL);
2751         else {
2752                 r = expand_names(bus, args + 1, suffix, &names);
2753                 if (r < 0)
2754                         log_error_errno(r, "Failed to expand names: %m");
2755         }
2756
2757         if (!arg_no_block) {
2758                 r = bus_wait_for_jobs_new(bus, &w);
2759                 if (r < 0)
2760                         return log_error_errno(r, "Could not watch jobs: %m");
2761         }
2762
2763         STRV_FOREACH(name, names) {
2764                 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2765                 int q;
2766
2767                 q = start_unit_one(bus, method, *name, mode, &error, w);
2768                 if (r >= 0 && q < 0)
2769                         r = translate_bus_error_to_exit_status(q, &error);
2770         }
2771
2772         if (!arg_no_block) {
2773                 int q;
2774
2775                 q = bus_wait_for_jobs(w, arg_quiet);
2776                 if (q < 0)
2777                         return q;
2778
2779                 /* When stopping units, warn if they can still be triggered by
2780                  * another active unit (socket, path, timer) */
2781                 if (!arg_quiet && streq(method, "StopUnit"))
2782                         STRV_FOREACH(name, names)
2783                                 check_triggering_units(bus, *name);
2784         }
2785
2786         return r;
2787 }
2788
2789 /* Ask systemd-logind, which might grant access to unprivileged users
2790  * through PolicyKit */
2791 static int reboot_with_logind(sd_bus *bus, enum action a) {
2792 #ifdef HAVE_LOGIND
2793         _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2794         const char *method;
2795         int r;
2796
2797         if (!bus)
2798                 return -EIO;
2799
2800         polkit_agent_open_if_enabled();
2801
2802         switch (a) {
2803
2804         case ACTION_REBOOT:
2805                 method = "Reboot";
2806                 break;
2807
2808         case ACTION_POWEROFF:
2809                 method = "PowerOff";
2810                 break;
2811
2812         case ACTION_SUSPEND:
2813                 method = "Suspend";
2814                 break;
2815
2816         case ACTION_HIBERNATE:
2817                 method = "Hibernate";
2818                 break;
2819
2820         case ACTION_HYBRID_SLEEP:
2821                 method = "HybridSleep";
2822                 break;
2823
2824         default:
2825                 return -EINVAL;
2826         }
2827
2828         r = sd_bus_call_method(
2829                         bus,
2830                         "org.freedesktop.login1",
2831                         "/org/freedesktop/login1",
2832                         "org.freedesktop.login1.Manager",
2833                         method,
2834                         &error,
2835                         NULL,
2836                         "b", arg_ask_password);
2837         if (r < 0)
2838                 log_error("Failed to execute operation: %s", bus_error_message(&error, r));
2839
2840         return r;
2841 #else
2842         return -ENOSYS;
2843 #endif
2844 }
2845
2846 static int check_inhibitors(sd_bus *bus, enum action a) {
2847 #ifdef HAVE_LOGIND
2848         _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2849         _cleanup_strv_free_ char **sessions = NULL;
2850         const char *what, *who, *why, *mode;
2851         uint32_t uid, pid;
2852         unsigned c = 0;
2853         char **s;
2854         int r;
2855
2856         if (!bus)
2857                 return 0;
2858
2859         if (arg_ignore_inhibitors || arg_force > 0)
2860                 return 0;
2861
2862         if (arg_when > 0)
2863                 return 0;
2864
2865         if (geteuid() == 0)
2866                 return 0;
2867
2868         if (!on_tty())
2869                 return 0;
2870
2871         r = sd_bus_call_method(
2872                         bus,
2873                         "org.freedesktop.login1",
2874                         "/org/freedesktop/login1",
2875                         "org.freedesktop.login1.Manager",
2876                         "ListInhibitors",
2877                         NULL,
2878                         &reply,
2879                         NULL);
2880         if (r < 0)
2881                 /* If logind is not around, then there are no inhibitors... */
2882                 return 0;
2883
2884         r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssuu)");
2885         if (r < 0)
2886                 return bus_log_parse_error(r);
2887
2888         while ((r = sd_bus_message_read(reply, "(ssssuu)", &what, &who, &why, &mode, &uid, &pid)) > 0) {
2889                 _cleanup_free_ char *comm = NULL, *user = NULL;
2890                 _cleanup_strv_free_ char **sv = NULL;
2891
2892                 if (!streq(mode, "block"))
2893                         continue;
2894
2895                 sv = strv_split(what, ":");
2896                 if (!sv)
2897                         return log_oom();
2898
2899                 if (!strv_contains(sv,
2900                                   a == ACTION_HALT ||
2901                                   a == ACTION_POWEROFF ||
2902                                   a == ACTION_REBOOT ||
2903                                   a == ACTION_KEXEC ? "shutdown" : "sleep"))
2904                         continue;
2905
2906                 get_process_comm(pid, &comm);
2907                 user = uid_to_name(uid);
2908
2909                 log_warning("Operation inhibited by \"%s\" (PID "PID_FMT" \"%s\", user %s), reason is \"%s\".",
2910                             who, pid, strna(comm), strna(user), why);
2911
2912                 c++;
2913         }
2914         if (r < 0)
2915                 return bus_log_parse_error(r);
2916
2917         r = sd_bus_message_exit_container(reply);
2918         if (r < 0)
2919                 return bus_log_parse_error(r);
2920
2921         /* Check for current sessions */
2922         sd_get_sessions(&sessions);
2923         STRV_FOREACH(s, sessions) {
2924                 _cleanup_free_ char *type = NULL, *tty = NULL, *seat = NULL, *user = NULL, *service = NULL, *class = NULL;
2925
2926                 if (sd_session_get_uid(*s, &uid) < 0 || uid == getuid())
2927                         continue;
2928
2929                 if (sd_session_get_class(*s, &class) < 0 || !streq(class, "user"))
2930                         continue;
2931
2932                 if (sd_session_get_type(*s, &type) < 0 || (!streq(type, "x11") && !streq(type, "tty")))
2933                         continue;
2934
2935                 sd_session_get_tty(*s, &tty);
2936                 sd_session_get_seat(*s, &seat);
2937                 sd_session_get_service(*s, &service);
2938                 user = uid_to_name(uid);
2939
2940                 log_warning("User %s is logged in on %s.", strna(user), isempty(tty) ? (isempty(seat) ? strna(service) : seat) : tty);
2941                 c++;
2942         }
2943
2944         if (c <= 0)
2945                 return 0;
2946
2947         log_error("Please retry operation after closing inhibitors and logging out other users.\nAlternatively, ignore inhibitors and users with 'systemctl %s -i'.",
2948                   action_table[a].verb);
2949
2950         return -EPERM;
2951 #else
2952         return 0;
2953 #endif
2954 }
2955
2956 static int start_special(sd_bus *bus, char **args) {
2957         enum action a;
2958         int r;
2959
2960         assert(args);
2961
2962         a = verb_to_action(args[0]);
2963
2964         r = check_inhibitors(bus, a);
2965         if (r < 0)
2966                 return r;
2967
2968         if (arg_force >= 2 && geteuid() != 0) {
2969                 log_error("Must be root.");
2970                 return -EPERM;
2971         }
2972
2973         if (arg_force >= 2 &&
2974             (a == ACTION_HALT ||
2975              a == ACTION_POWEROFF ||
2976              a == ACTION_REBOOT))
2977                 return halt_now(a);
2978
2979         if (arg_force >= 1 &&
2980             (a == ACTION_HALT ||
2981              a == ACTION_POWEROFF ||
2982              a == ACTION_REBOOT ||
2983              a == ACTION_KEXEC ||
2984              a == ACTION_EXIT))
2985                 return daemon_reload(bus, args);
2986
2987         /* first try logind, to allow authentication with polkit */
2988         if (geteuid() != 0 &&
2989             (a == ACTION_POWEROFF ||
2990              a == ACTION_REBOOT ||
2991              a == ACTION_SUSPEND ||
2992              a == ACTION_HIBERNATE ||
2993              a == ACTION_HYBRID_SLEEP)) {
2994                 r = reboot_with_logind(bus, a);
2995                 if (r >= 0)
2996                         return r;
2997         }
2998
2999         r = start_unit(bus, args);
3000         if (r == EXIT_SUCCESS)
3001                 warn_wall(a);
3002
3003         return r;
3004 }
3005
3006 static int check_unit_generic(sd_bus *bus, int code, const char *good_states, char **args) {
3007         _cleanup_strv_free_ char **names = NULL;
3008         char **name;
3009         int r;
3010
3011         assert(bus);
3012         assert(args);
3013
3014         r = expand_names(bus, args, NULL, &names);
3015         if (r < 0)
3016                 return log_error_errno(r, "Failed to expand names: %m");
3017
3018         STRV_FOREACH(name, names) {
3019                 int state;
3020
3021                 state = check_one_unit(bus, *name, good_states, arg_quiet);
3022                 if (state < 0)
3023                         return state;
3024                 if (state == 0)
3025                         r = code;
3026         }
3027
3028         return r;
3029 }
3030
3031 static int check_unit_active(sd_bus *bus, char **args) {
3032         /* According to LSB: 3, "program is not running" */
3033         return check_unit_generic(bus, 3, "active\0reloading\0", args + 1);
3034 }
3035
3036 static int check_unit_failed(sd_bus *bus, char **args) {
3037         return check_unit_generic(bus, 1, "failed\0", args + 1);
3038 }
3039
3040 static int kill_unit(sd_bus *bus, char **args) {
3041         _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
3042         _cleanup_strv_free_ char **names = NULL;
3043         char **name;
3044         int r, q;
3045
3046         assert(bus);
3047         assert(args);
3048
3049         if (!arg_kill_who)
3050                 arg_kill_who = "all";
3051
3052         r = expand_names(bus, args + 1, NULL, &names);
3053         if (r < 0)
3054                 log_error_errno(r, "Failed to expand names: %m");
3055
3056         STRV_FOREACH(name, names) {
3057                 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
3058
3059                 q = sd_bus_message_new_method_call(
3060                                 bus,
3061                                 &m,
3062                                 "org.freedesktop.systemd1",
3063                                 "/org/freedesktop/systemd1",
3064                                 "org.freedesktop.systemd1.Manager",
3065                                 "KillUnit");
3066                 if (q < 0)
3067                         return bus_log_create_error(q);
3068
3069                 q = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password);
3070                 if (q < 0)
3071                         return bus_log_create_error(q);
3072
3073                 q = sd_bus_message_append(m, "ssi", *names, arg_kill_who, arg_signal);
3074                 if (q < 0)
3075                         return bus_log_create_error(q);
3076
3077                 q = sd_bus_call(bus, m, 0, &error, NULL);
3078                 if (q < 0) {
3079                         log_error("Failed to kill unit %s: %s", *names, bus_error_message(&error, q));
3080                         if (r == 0)
3081                                 r = q;
3082                 }
3083         }
3084
3085         return r;
3086 }
3087
3088 typedef struct ExecStatusInfo {
3089         char *name;
3090
3091         char *path;
3092         char **argv;
3093
3094         bool ignore;
3095
3096         usec_t start_timestamp;
3097         usec_t exit_timestamp;
3098         pid_t pid;
3099         int code;
3100         int status;
3101
3102         LIST_FIELDS(struct ExecStatusInfo, exec);
3103 } ExecStatusInfo;
3104
3105 static void exec_status_info_free(ExecStatusInfo *i) {
3106         assert(i);
3107
3108         free(i->name);
3109         free(i->path);
3110         strv_free(i->argv);
3111         free(i);
3112 }
3113
3114 static int exec_status_info_deserialize(sd_bus_message *m, ExecStatusInfo *i) {
3115         uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
3116         const char *path;
3117         uint32_t pid;
3118         int32_t code, status;
3119         int ignore, r;
3120
3121         assert(m);
3122         assert(i);
3123
3124         r = sd_bus_message_enter_container(m, SD_BUS_TYPE_STRUCT, "sasbttttuii");
3125         if (r < 0)
3126                 return bus_log_parse_error(r);
3127         else if (r == 0)
3128                 return 0;
3129
3130         r = sd_bus_message_read(m, "s", &path);
3131         if (r < 0)
3132                 return bus_log_parse_error(r);
3133
3134         i->path = strdup(path);
3135         if (!i->path)
3136                 return log_oom();
3137
3138         r = sd_bus_message_read_strv(m, &i->argv);
3139         if (r < 0)
3140                 return bus_log_parse_error(r);
3141
3142         r = sd_bus_message_read(m,
3143                                 "bttttuii",
3144                                 &ignore,
3145                                 &start_timestamp, &start_timestamp_monotonic,
3146                                 &exit_timestamp, &exit_timestamp_monotonic,
3147                                 &pid,
3148                                 &code, &status);
3149         if (r < 0)
3150                 return bus_log_parse_error(r);
3151
3152         i->ignore = ignore;
3153         i->start_timestamp = (usec_t) start_timestamp;
3154         i->exit_timestamp = (usec_t) exit_timestamp;
3155         i->pid = (pid_t) pid;
3156         i->code = code;
3157         i->status = status;
3158
3159         r = sd_bus_message_exit_container(m);
3160         if (r < 0)
3161                 return bus_log_parse_error(r);
3162
3163         return 1;
3164 }
3165
3166 typedef struct UnitStatusInfo {
3167         const char *id;
3168         const char *load_state;
3169         const char *active_state;
3170         const char *sub_state;
3171         const char *unit_file_state;
3172         const char *unit_file_preset;
3173
3174         const char *description;
3175         const char *following;
3176
3177         char **documentation;
3178
3179         const char *fragment_path;
3180         const char *source_path;
3181         const char *control_group;
3182
3183         char **dropin_paths;
3184
3185         const char *load_error;
3186         const char *result;
3187
3188         usec_t inactive_exit_timestamp;
3189         usec_t inactive_exit_timestamp_monotonic;
3190         usec_t active_enter_timestamp;
3191         usec_t active_exit_timestamp;
3192         usec_t inactive_enter_timestamp;
3193
3194         bool need_daemon_reload;
3195
3196         /* Service */
3197         pid_t main_pid;
3198         pid_t control_pid;
3199         const char *status_text;
3200         const char *pid_file;
3201         bool running:1;
3202         int status_errno;
3203
3204         usec_t start_timestamp;
3205         usec_t exit_timestamp;
3206
3207         int exit_code, exit_status;
3208
3209         usec_t condition_timestamp;
3210         bool condition_result;
3211         bool failed_condition_trigger;
3212         bool failed_condition_negate;
3213         const char *failed_condition;
3214         const char *failed_condition_parameter;
3215
3216         usec_t assert_timestamp;
3217         bool assert_result;
3218         bool failed_assert_trigger;
3219         bool failed_assert_negate;
3220         const char *failed_assert;
3221         const char *failed_assert_parameter;
3222
3223         /* Socket */
3224         unsigned n_accepted;
3225         unsigned n_connections;
3226         bool accept;
3227
3228         /* Pairs of type, path */
3229         char **listen;
3230
3231         /* Device */
3232         const char *sysfs_path;
3233
3234         /* Mount, Automount */
3235         const char *where;
3236
3237         /* Swap */
3238         const char *what;
3239
3240         LIST_HEAD(ExecStatusInfo, exec);
3241 } UnitStatusInfo;
3242
3243 static void print_status_info(
3244                 UnitStatusInfo *i,
3245                 bool *ellipsized) {
3246
3247         ExecStatusInfo *p;
3248         const char *active_on, *active_off, *on, *off, *ss;
3249         usec_t timestamp;
3250         char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1;
3251         char since2[FORMAT_TIMESTAMP_MAX], *s2;
3252         const char *path;
3253         int flags =
3254                 arg_all * OUTPUT_SHOW_ALL |
3255                 (!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
3256                 on_tty() * OUTPUT_COLOR |
3257                 !arg_quiet * OUTPUT_WARN_CUTOFF |
3258                 arg_full * OUTPUT_FULL_WIDTH;
3259         char **t, **t2;
3260
3261         assert(i);
3262
3263         /* This shows pretty information about a unit. See
3264          * print_property() for a low-level property printer */
3265
3266         if (streq_ptr(i->active_state, "failed")) {
3267                 active_on = ansi_highlight_red();
3268                 active_off = ansi_highlight_off();
3269         } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
3270                 active_on = ansi_highlight_green();
3271                 active_off = ansi_highlight_off();
3272         } else
3273                 active_on = active_off = "";
3274
3275         printf("%s%s%s %s", active_on, draw_special_char(DRAW_BLACK_CIRCLE), active_off, strna(i->id));
3276
3277         if (i->description && !streq_ptr(i->id, i->description))
3278                 printf(" - %s", i->description);
3279
3280         printf("\n");
3281
3282         if (i->following)
3283                 printf("   Follow: unit currently follows state of %s\n", i->following);
3284
3285         if (streq_ptr(i->load_state, "error")) {
3286                 on = ansi_highlight_red();
3287                 off = ansi_highlight_off();
3288         } else
3289                 on = off = "";
3290
3291         path = i->source_path ? i->source_path : i->fragment_path;
3292
3293         if (i->load_error)
3294                 printf("   Loaded: %s%s%s (Reason: %s)\n",
3295                        on, strna(i->load_state), off, i->load_error);
3296         else if (path && !isempty(i->unit_file_state) && !isempty(i->unit_file_preset))
3297                 printf("   Loaded: %s%s%s (%s; %s; vendor preset: %s)\n",
3298                        on, strna(i->load_state), off, path, i->unit_file_state, i->unit_file_preset);
3299         else if (path && !isempty(i->unit_file_state))
3300                 printf("   Loaded: %s%s%s (%s; %s)\n",
3301                        on, strna(i->load_state), off, path, i->unit_file_state);
3302         else if (path)
3303                 printf("   Loaded: %s%s%s (%s)\n",
3304                        on, strna(i->load_state), off, path);
3305         else
3306                 printf("   Loaded: %s%s%s\n",
3307                        on, strna(i->load_state), off);
3308
3309         if (!strv_isempty(i->dropin_paths)) {
3310                 _cleanup_free_ char *dir = NULL;
3311                 bool last = false;
3312                 char ** dropin;
3313
3314                 STRV_FOREACH(dropin, i->dropin_paths) {
3315                         if (! dir || last) {
3316                                 printf(dir ? "        " : "  Drop-In: ");
3317
3318                                 free(dir);
3319                                 dir = NULL;
3320
3321                                 if (path_get_parent(*dropin, &dir) < 0) {
3322                                         log_oom();
3323                                         return;
3324                                 }
3325
3326                                 printf("%s\n           %s", dir,
3327                                        draw_special_char(DRAW_TREE_RIGHT));
3328                         }
3329
3330                         last = ! (*(dropin + 1) && startswith(*(dropin + 1), dir));
3331
3332                         printf("%s%s", basename(*dropin), last ? "\n" : ", ");
3333                 }
3334         }
3335
3336         ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
3337         if (ss)
3338                 printf("   Active: %s%s (%s)%s",
3339                        active_on, strna(i->active_state), ss, active_off);
3340         else
3341                 printf("   Active: %s%s%s",
3342                        active_on, strna(i->active_state), active_off);
3343
3344         if (!isempty(i->result) && !streq(i->result, "success"))
3345                 printf(" (Result: %s)", i->result);
3346
3347         timestamp = (streq_ptr(i->active_state, "active")      ||
3348                      streq_ptr(i->active_state, "reloading"))   ? i->active_enter_timestamp :
3349                     (streq_ptr(i->active_state, "inactive")    ||
3350                      streq_ptr(i->active_state, "failed"))      ? i->inactive_enter_timestamp :
3351                     streq_ptr(i->active_state, "activating")    ? i->inactive_exit_timestamp :
3352                                                                   i->active_exit_timestamp;
3353
3354         s1 = format_timestamp_relative(since1, sizeof(since1), timestamp);
3355         s2 = format_timestamp(since2, sizeof(since2), timestamp);
3356
3357         if (s1)
3358                 printf(" since %s; %s\n", s2, s1);
3359         else if (s2)
3360                 printf(" since %s\n", s2);
3361         else
3362                 printf("\n");
3363
3364         if (!i->condition_result && i->condition_timestamp > 0) {
3365                 s1 = format_timestamp_relative(since1, sizeof(since1), i->condition_timestamp);
3366                 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
3367
3368                 printf("Condition: start %scondition failed%s at %s%s%s\n",
3369                        ansi_highlight_yellow(), ansi_highlight_off(),
3370                        s2, s1 ? "; " : "", s1 ? s1 : "");
3371                 if (i->failed_condition_trigger)
3372                         printf("           none of the trigger conditions were met\n");
3373                 else if (i->failed_condition)
3374                         printf("           %s=%s%s was not met\n",
3375                                i->failed_condition,
3376                                i->failed_condition_negate ? "!" : "",
3377                                i->failed_condition_parameter);
3378         }
3379
3380         if (!i->assert_result && i->assert_timestamp > 0) {
3381                 s1 = format_timestamp_relative(since1, sizeof(since1), i->assert_timestamp);
3382                 s2 = format_timestamp(since2, sizeof(since2), i->assert_timestamp);
3383
3384                 printf("   Assert: start %sassertion failed%s at %s%s%s\n",
3385                        ansi_highlight_red(), ansi_highlight_off(),
3386                        s2, s1 ? "; " : "", s1 ? s1 : "");
3387                 if (i->failed_assert_trigger)
3388                         printf("           none of the trigger assertions were met\n");
3389                 else if (i->failed_assert)
3390                         printf("           %s=%s%s was not met\n",
3391                                i->failed_assert,
3392                                i->failed_assert_negate ? "!" : "",
3393                                i->failed_assert_parameter);
3394         }
3395
3396         if (i->sysfs_path)
3397                 printf("   Device: %s\n", i->sysfs_path);
3398         if (i->where)
3399                 printf("    Where: %s\n", i->where);
3400         if (i->what)
3401                 printf("     What: %s\n", i->what);
3402
3403         STRV_FOREACH(t, i->documentation)
3404                 printf(" %*s %s\n", 9, t == i->documentation ? "Docs:" : "", *t);
3405
3406         STRV_FOREACH_PAIR(t, t2, i->listen)
3407                 printf(" %*s %s (%s)\n", 9, t == i->listen ? "Listen:" : "", *t2, *t);
3408
3409         if (i->accept)
3410                 printf(" Accepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
3411
3412         LIST_FOREACH(exec, p, i->exec) {
3413                 _cleanup_free_ char *argv = NULL;
3414                 bool good;
3415
3416                 /* Only show exited processes here */
3417                 if (p->code == 0)
3418                         continue;
3419
3420                 argv = strv_join(p->argv, " ");
3421                 printf("  Process: %u %s=%s ", p->pid, p->name, strna(argv));
3422
3423                 good = is_clean_exit_lsb(p->code, p->status, NULL);
3424                 if (!good) {
3425                         on = ansi_highlight_red();
3426                         off = ansi_highlight_off();
3427                 } else
3428                         on = off = "";
3429
3430                 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
3431
3432                 if (p->code == CLD_EXITED) {
3433                         const char *c;
3434
3435                         printf("status=%i", p->status);
3436
3437                         c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD);
3438                         if (c)
3439                                 printf("/%s", c);
3440
3441                 } else
3442                         printf("signal=%s", signal_to_string(p->status));
3443
3444                 printf(")%s\n", off);
3445
3446                 if (i->main_pid == p->pid &&
3447                     i->start_timestamp == p->start_timestamp &&
3448                     i->exit_timestamp == p->start_timestamp)
3449                         /* Let's not show this twice */
3450                         i->main_pid = 0;
3451
3452                 if (p->pid == i->control_pid)
3453                         i->control_pid = 0;
3454         }
3455
3456         if (i->main_pid > 0 || i->control_pid > 0) {
3457                 if (i->main_pid > 0) {
3458                         printf(" Main PID: "PID_FMT, i->main_pid);
3459
3460                         if (i->running) {
3461                                 _cleanup_free_ char *comm = NULL;
3462                                 get_process_comm(i->main_pid, &comm);
3463                                 if (comm)
3464                                         printf(" (%s)", comm);
3465                         } else if (i->exit_code > 0) {
3466                                 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
3467
3468                                 if (i->exit_code == CLD_EXITED) {
3469                                         const char *c;
3470
3471                                         printf("status=%i", i->exit_status);
3472
3473                                         c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD);
3474                                         if (c)
3475                                                 printf("/%s", c);
3476
3477                                 } else
3478                                         printf("signal=%s", signal_to_string(i->exit_status));
3479                                 printf(")");
3480                         }
3481
3482                         if (i->control_pid > 0)
3483                                 printf(";");
3484                 }
3485
3486                 if (i->control_pid > 0) {
3487                         _cleanup_free_ char *c = NULL;
3488
3489                         printf(" %8s: "PID_FMT, i->main_pid ? "" : " Control", i->control_pid);
3490
3491                         get_process_comm(i->control_pid, &c);
3492                         if (c)
3493                                 printf(" (%s)", c);
3494                 }
3495
3496                 printf("\n");
3497         }
3498
3499         if (i->status_text)
3500                 printf("   Status: \"%s\"\n", i->status_text);
3501         if (i->status_errno > 0)
3502                 printf("    Error: %i (%s)\n", i->status_errno, strerror(i->status_errno));
3503
3504         if (i->control_group &&
3505             (i->main_pid > 0 || i->control_pid > 0 ||
3506              ((arg_transport != BUS_TRANSPORT_LOCAL && arg_transport != BUS_TRANSPORT_MACHINE) || cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, i->control_group, false) == 0))) {
3507                 unsigned c;
3508
3509                 printf("   CGroup: %s\n", i->control_group);
3510
3511                 if (arg_transport == BUS_TRANSPORT_LOCAL || arg_transport == BUS_TRANSPORT_MACHINE) {
3512                         unsigned k = 0;
3513                         pid_t extra[2];
3514                         static const char prefix[] = "           ";
3515
3516                         c = columns();
3517                         if (c > sizeof(prefix) - 1)
3518                                 c -= sizeof(prefix) - 1;
3519                         else
3520                                 c = 0;
3521
3522                         if (i->main_pid > 0)
3523                                 extra[k++] = i->main_pid;
3524
3525                         if (i->control_pid > 0)
3526                                 extra[k++] = i->control_pid;
3527
3528                         show_cgroup_and_extra(SYSTEMD_CGROUP_CONTROLLER, i->control_group, prefix, c, false, extra, k, flags);
3529                 }
3530         }
3531
3532         if (i->id && arg_transport == BUS_TRANSPORT_LOCAL) {
3533                 show_journal_by_unit(stdout,
3534                                      i->id,
3535                                      arg_output,
3536                                      0,
3537                                      i->inactive_exit_timestamp_monotonic,
3538                                      arg_lines,
3539                                      getuid(),
3540                                      flags | OUTPUT_BEGIN_NEWLINE,
3541                                      arg_scope == UNIT_FILE_SYSTEM,
3542                                      ellipsized);
3543         }
3544
3545         if (i->need_daemon_reload)
3546                 warn_unit_file_changed(i->id);
3547 }
3548
3549 static void show_unit_help(UnitStatusInfo *i) {
3550         char **p;
3551
3552         assert(i);
3553
3554         if (!i->documentation) {
3555                 log_info("Documentation for %s not known.", i->id);
3556                 return;
3557         }
3558
3559         STRV_FOREACH(p, i->documentation)
3560                 if (startswith(*p, "man:"))
3561                         show_man_page(*p + 4, false);
3562                 else
3563                         log_info("Can't show: %s", *p);
3564 }
3565
3566 static int status_property(const char *name, sd_bus_message *m, UnitStatusInfo *i, const char *contents) {
3567         int r;
3568
3569         assert(name);
3570         assert(m);
3571         assert(i);
3572
3573         switch (contents[0]) {
3574
3575         case SD_BUS_TYPE_STRING: {
3576                 const char *s;
3577
3578                 r = sd_bus_message_read(m, "s", &s);
3579                 if (r < 0)
3580                         return bus_log_parse_error(r);
3581
3582                 if (!isempty(s)) {
3583                         if (streq(name, "Id"))
3584                                 i->id = s;
3585                         else if (streq(name, "LoadState"))
3586                                 i->load_state = s;
3587                         else if (streq(name, "ActiveState"))
3588                                 i->active_state = s;
3589                         else if (streq(name, "SubState"))
3590                                 i->sub_state = s;
3591                         else if (streq(name, "Description"))
3592                                 i->description = s;
3593                         else if (streq(name, "FragmentPath"))
3594                                 i->fragment_path = s;
3595                         else if (streq(name, "SourcePath"))
3596                                 i->source_path = s;
3597 #ifndef NOLEGACY
3598                         else if (streq(name, "DefaultControlGroup")) {
3599                                 const char *e;
3600                                 e = startswith(s, SYSTEMD_CGROUP_CONTROLLER ":");
3601                                 if (e)
3602                                         i->control_group = e;
3603                         }
3604 #endif
3605                         else if (streq(name, "ControlGroup"))
3606                                 i->control_group = s;
3607                         else if (streq(name, "StatusText"))
3608                                 i->status_text = s;
3609                         else if (streq(name, "PIDFile"))
3610                                 i->pid_file = s;
3611                         else if (streq(name, "SysFSPath"))
3612                                 i->sysfs_path = s;
3613                         else if (streq(name, "Where"))
3614                                 i->where = s;
3615                         else if (streq(name, "What"))