src/analyze/analyze.c

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 /***
   3   Copyright © 2013 Simon Peeters
   4 ***/
   5
   6 #include <getopt.h>
   7 #include <inttypes.h>
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10 #include <unistd.h>
  11
  12 #include "sd-bus.h"
  13
  14 #include "alloc-util.h"
  15 #include "analyze.h"
  16 #include "analyze-blame.h"
  17 #include "analyze-calendar.h"
  18 #include "analyze-capability.h"
  19 #include "analyze-cat-config.h"
  20 #include "analyze-compare-versions.h"
  21 #include "analyze-condition.h"
  22 #include "analyze-critical-chain.h"
  23 #include "analyze-dot.h"
  24 #include "analyze-dump.h"
  25 #include "analyze-exit-status.h"
  26 #include "analyze-fdstore.h"
  27 #include "analyze-filesystems.h"
  28 #include "analyze-inspect-elf.h"
  29 #include "analyze-log-control.h"
  30 #include "analyze-malloc.h"
  31 #include "analyze-pcrs.h"
  32 #include "analyze-plot.h"
  33 #include "analyze-security.h"
  34 #include "analyze-service-watchdogs.h"
  35 #include "analyze-syscall-filter.h"
  36 #include "analyze-time.h"
  37 #include "analyze-time-data.h"
  38 #include "analyze-timespan.h"
  39 #include "analyze-timestamp.h"
  40 #include "analyze-unit-files.h"
  41 #include "analyze-unit-paths.h"
  42 #include "analyze-verify.h"
  43 #include "analyze-image-policy.h"
  44 #include "build.h"
  45 #include "bus-error.h"
  46 #include "bus-locator.h"
  47 #include "bus-map-properties.h"
  48 #include "bus-unit-util.h"
  49 #include "calendarspec.h"
  50 #include "cap-list.h"
  51 #include "capability-util.h"
  52 #include "conf-files.h"
  53 #include "copy.h"
  54 #include "constants.h"
  55 #include "exit-status.h"
  56 #include "extract-word.h"
  57 #include "fd-util.h"
  58 #include "fileio.h"
  59 #include "filesystems.h"
  60 #include "format-table.h"
  61 #include "glob-util.h"
  62 #include "hashmap.h"
  63 #include "locale-util.h"
  64 #include "log.h"
  65 #include "main-func.h"
  66 #include "mount-util.h"
  67 #include "nulstr-util.h"
  68 #include "pager.h"
  69 #include "parse-argument.h"
  70 #include "parse-util.h"
  71 #include "path-util.h"
  72 #include "pretty-print.h"
  73 #include "rm-rf.h"
  74 #if HAVE_SECCOMP
  75 #  include "seccomp-util.h"
  76 #endif
  77 #include "sort-util.h"
  78 #include "special.h"
  79 #include "stat-util.h"
  80 #include "string-table.h"
  81 #include "strv.h"
  82 #include "strxcpyx.h"
  83 #include "terminal-util.h"
  84 #include "time-util.h"
  85 #include "tmpfile-util.h"
  86 #include "unit-name.h"
  87 #include "verb-log-control.h"
  88 #include "verbs.h"
  89 #include "version.h"
  90
  91 DotMode arg_dot = DEP_ALL;
  92 char **arg_dot_from_patterns = NULL, **arg_dot_to_patterns = NULL;
  93 usec_t arg_fuzz = 0;
  94 PagerFlags arg_pager_flags = 0;
  95 BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
  96 const char *arg_host = NULL;
  97 RuntimeScope arg_runtime_scope = RUNTIME_SCOPE_SYSTEM;
  98 RecursiveErrors arg_recursive_errors = _RECURSIVE_ERRORS_INVALID;
  99 bool arg_man = true;
 100 bool arg_generators = false;
 101 char *arg_root = NULL;
 102 static char *arg_image = NULL;
 103 char *arg_security_policy = NULL;
 104 bool arg_offline = false;
 105 unsigned arg_threshold = 100;
 106 unsigned arg_iterations = 1;
 107 usec_t arg_base_time = USEC_INFINITY;
 108 char *arg_unit = NULL;
 109 JsonFormatFlags arg_json_format_flags = JSON_FORMAT_OFF;
 110 bool arg_quiet = false;
 111 char *arg_profile = NULL;
 112 bool arg_legend = true;
 113 bool arg_table = false;
 114 ImagePolicy *arg_image_policy = NULL;
 115
 116 STATIC_DESTRUCTOR_REGISTER(arg_dot_from_patterns, strv_freep);
 117 STATIC_DESTRUCTOR_REGISTER(arg_dot_to_patterns, strv_freep);
 118 STATIC_DESTRUCTOR_REGISTER(arg_root, freep);
 119 STATIC_DESTRUCTOR_REGISTER(arg_image, freep);
 120 STATIC_DESTRUCTOR_REGISTER(arg_security_policy, freep);
 121 STATIC_DESTRUCTOR_REGISTER(arg_unit, freep);
 122 STATIC_DESTRUCTOR_REGISTER(arg_profile, freep);
 123 STATIC_DESTRUCTOR_REGISTER(arg_image_policy, image_policy_freep);
 124
 125 int acquire_bus(sd_bus **bus, bool *use_full_bus) {
 126         int r;
 127
 128         if (use_full_bus && *use_full_bus) {
 129                 r = bus_connect_transport(arg_transport, arg_host, arg_runtime_scope, bus);
 130                 if (IN_SET(r, 0, -EHOSTDOWN))
 131                         return r;
 132
 133                 *use_full_bus = false;
 134         }
 135
 136         return bus_connect_transport_systemd(arg_transport, arg_host, arg_runtime_scope, bus);
 137 }
 138
 139 int bus_get_unit_property_strv(sd_bus *bus, const char *path, const char *property, char ***strv) {
 140         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
 141         int r;
 142
 143         assert(bus);
 144         assert(path);
 145         assert(property);
 146         assert(strv);
 147
 148         r = sd_bus_get_property_strv(
 149                         bus,
 150                         "org.freedesktop.systemd1",
 151                         path,
 152                         "org.freedesktop.systemd1.Unit",
 153                         property,
 154                         &error,
 155                         strv);
 156         if (r < 0)
 157                 return log_error_errno(r, "Failed to get unit property %s: %s", property, bus_error_message(&error, r));
 158
 159         return 0;
 160 }
 161
 162 void time_parsing_hint(const char *p, bool calendar, bool timestamp, bool timespan) {
 163         if (calendar && calendar_spec_from_string(p, NULL) >= 0)
 164                 log_notice("Hint: this expression is a valid calendar specification. "
 165                            "Use 'systemd-analyze calendar \"%s\"' instead?", p);
 166         if (timestamp && parse_timestamp(p, NULL) >= 0)
 167                 log_notice("Hint: this expression is a valid timestamp. "
 168                            "Use 'systemd-analyze timestamp \"%s\"' instead?", p);
 169         if (timespan && parse_time(p, NULL, USEC_PER_SEC) >= 0)
 170                 log_notice("Hint: this expression is a valid timespan. "
 171                            "Use 'systemd-analyze timespan \"%s\"' instead?", p);
 172 }
 173
 174 int dump_fd_reply(sd_bus_message *message) {
 175         int fd, r;
 176
 177         assert(message);
 178
 179         r = sd_bus_message_read(message, "h", &fd);
 180         if (r < 0)
 181                 return bus_log_parse_error(r);
 182
 183         fflush(stdout);
 184         r = copy_bytes(fd, STDOUT_FILENO, UINT64_MAX, 0);
 185         if (r < 0)
 186                 return r;
 187
 188         return 1;  /* Success */
 189 }
 190
 191 static int help(int argc, char *argv[], void *userdata) {
 192         _cleanup_free_ char *link = NULL, *dot_link = NULL;
 193         int r;
 194
 195         pager_open(arg_pager_flags);
 196
 197         r = terminal_urlify_man("systemd-analyze", "1", &link);
 198         if (r < 0)
 199                 return log_oom();
 200
 201         /* Not using terminal_urlify_man() for this, since we don't want the "man page" text suffix in this case. */
 202         r = terminal_urlify("man:dot(1)", "dot(1)", &dot_link);
 203         if (r < 0)
 204                 return log_oom();
 205
 206         printf("%s [OPTIONS...] COMMAND ...\n\n"
 207                "%sProfile systemd, show unit dependencies, check unit files.%s\n"
 208                "\nCommands:\n"
 209                "  [time]                     Print time required to boot the machine\n"
 210                "  blame                      Print list of running units ordered by\n"
 211                "                             time to init\n"
 212                "  critical-chain [UNIT...]   Print a tree of the time critical chain\n"
 213                "                             of units\n"
 214                "  plot                       Output SVG graphic showing service\n"
 215                "                             initialization\n"
 216                "  dot [UNIT...]              Output dependency graph in %s format\n"
 217                "  dump [PATTERN...]          Output state serialization of service\n"
 218                "                             manager\n"
 219                "  cat-config                 Show configuration file and drop-ins\n"
 220                "  unit-files                 List files and symlinks for units\n"
 221                "  unit-paths                 List load directories for units\n"
 222                "  exit-status [STATUS...]    List exit status definitions\n"
 223                "  capability [CAP...]        List capability definitions\n"
 224                "  syscall-filter [NAME...]   List syscalls in seccomp filters\n"
 225                "  filesystems [NAME...]      List known filesystems\n"
 226                "  condition CONDITION...     Evaluate conditions and asserts\n"
 227                "  compare-versions VERSION1 [OP] VERSION2\n"
 228                "                             Compare two version strings\n"
 229                "  verify FILE...             Check unit files for correctness\n"
 230                "  calendar SPEC...           Validate repetitive calendar time\n"
 231                "                             events\n"
 232                "  timestamp TIMESTAMP...     Validate a timestamp\n"
 233                "  timespan SPAN...           Validate a time span\n"
 234                "  security [UNIT...]         Analyze security of unit\n"
 235                "  inspect-elf FILE...        Parse and print ELF package metadata\n"
 236                "  malloc [D-BUS SERVICE...]  Dump malloc stats of a D-Bus service\n"
 237                "  fdstore SERVICE...         Show file descriptor store contents of service\n"
 238                "  pcrs [PCR...]              Show TPM2 PCRs and their names\n"
 239                "\nOptions:\n"
 240                "     --recursive-errors=MODE Control which units are verified\n"
 241                "     --offline=BOOL          Perform a security review on unit file(s)\n"
 242                "     --threshold=N           Exit with a non-zero status when overall\n"
 243                "                             exposure level is over threshold value\n"
 244                "     --security-policy=PATH  Use custom JSON security policy instead\n"
 245                "                             of built-in one\n"
 246                "     --json=pretty|short|off Generate JSON output of the security\n"
 247                "                             analysis table, or plot's raw time data\n"
 248                "     --no-pager              Do not pipe output into a pager\n"
 249                "     --no-legend             Disable column headers and hints in plot\n"
 250                "                             with either --table or --json=\n"
 251                "     --system                Operate on system systemd instance\n"
 252                "     --user                  Operate on user systemd instance\n"
 253                "     --global                Operate on global user configuration\n"
 254                "  -H --host=[USER@]HOST      Operate on remote host\n"
 255                "  -M --machine=CONTAINER     Operate on local container\n"
 256                "     --order                 Show only order in the graph\n"
 257                "     --require               Show only requirement in the graph\n"
 258                "     --from-pattern=GLOB     Show only origins in the graph\n"
 259                "     --to-pattern=GLOB       Show only destinations in the graph\n"
 260                "     --fuzz=SECONDS          Also print services which finished SECONDS\n"
 261                "                             earlier than the latest in the branch\n"
 262                "     --man[=BOOL]            Do [not] check for existence of man pages\n"
 263                "     --generators[=BOOL]     Do [not] run unit generators\n"
 264                "                             (requires privileges)\n"
 265                "     --iterations=N          Show the specified number of iterations\n"
 266                "     --base-time=TIMESTAMP   Calculate calendar times relative to\n"
 267                "                             specified time\n"
 268                "     --profile=name|PATH     Include the specified profile in the\n"
 269                "                             security review of the unit(s)\n"
 270                "     --table                 Output plot's raw time data as a table\n"
 271                "  -h --help                  Show this help\n"
 272                "     --version               Show package version\n"
 273                "  -q --quiet                 Do not emit hints\n"
 274                "     --root=PATH             Operate on an alternate filesystem root\n"
 275                "     --image=PATH            Operate on disk image as filesystem root\n"
 276                "     --image-policy=POLICY   Specify disk image dissection policy\n"
 277                "\nSee the %s for details.\n",
 278                program_invocation_short_name,
 279                ansi_highlight(),
 280                ansi_normal(),
 281                dot_link,
 282                link);
 283
 284         /* When updating this list, including descriptions, apply changes to
 285          * shell-completion/bash/systemd-analyze and shell-completion/zsh/_systemd-analyze too. */
 286
 287         return 0;
 288 }
 289
 290 static int parse_argv(int argc, char *argv[]) {
 291         enum {
 292                 ARG_VERSION = 0x100,
 293                 ARG_ORDER,
 294                 ARG_REQUIRE,
 295                 ARG_ROOT,
 296                 ARG_IMAGE,
 297                 ARG_IMAGE_POLICY,
 298                 ARG_SYSTEM,
 299                 ARG_USER,
 300                 ARG_GLOBAL,
 301                 ARG_DOT_FROM_PATTERN,
 302                 ARG_DOT_TO_PATTERN,
 303                 ARG_FUZZ,
 304                 ARG_NO_PAGER,
 305                 ARG_MAN,
 306                 ARG_GENERATORS,
 307                 ARG_ITERATIONS,
 308                 ARG_BASE_TIME,
 309                 ARG_RECURSIVE_ERRORS,
 310                 ARG_OFFLINE,
 311                 ARG_THRESHOLD,
 312                 ARG_SECURITY_POLICY,
 313                 ARG_JSON,
 314                 ARG_PROFILE,
 315                 ARG_TABLE,
 316                 ARG_NO_LEGEND,
 317         };
 318
 319         static const struct option options[] = {
 320                 { "help",             no_argument,       NULL, 'h'                  },
 321                 { "version",          no_argument,       NULL, ARG_VERSION          },
 322                 { "quiet",            no_argument,       NULL, 'q'                  },
 323                 { "order",            no_argument,       NULL, ARG_ORDER            },
 324                 { "require",          no_argument,       NULL, ARG_REQUIRE          },
 325                 { "root",             required_argument, NULL, ARG_ROOT             },
 326                 { "image",            required_argument, NULL, ARG_IMAGE            },
 327                 { "image-policy",     required_argument, NULL, ARG_IMAGE_POLICY     },
 328                 { "recursive-errors", required_argument, NULL, ARG_RECURSIVE_ERRORS },
 329                 { "offline",          required_argument, NULL, ARG_OFFLINE          },
 330                 { "threshold",        required_argument, NULL, ARG_THRESHOLD        },
 331                 { "security-policy",  required_argument, NULL, ARG_SECURITY_POLICY  },
 332                 { "system",           no_argument,       NULL, ARG_SYSTEM           },
 333                 { "user",             no_argument,       NULL, ARG_USER             },
 334                 { "global",           no_argument,       NULL, ARG_GLOBAL           },
 335                 { "from-pattern",     required_argument, NULL, ARG_DOT_FROM_PATTERN },
 336                 { "to-pattern",       required_argument, NULL, ARG_DOT_TO_PATTERN   },
 337                 { "fuzz",             required_argument, NULL, ARG_FUZZ             },
 338                 { "no-pager",         no_argument,       NULL, ARG_NO_PAGER         },
 339                 { "man",              optional_argument, NULL, ARG_MAN              },
 340                 { "generators",       optional_argument, NULL, ARG_GENERATORS       },
 341                 { "host",             required_argument, NULL, 'H'                  },
 342                 { "machine",          required_argument, NULL, 'M'                  },
 343                 { "iterations",       required_argument, NULL, ARG_ITERATIONS       },
 344                 { "base-time",        required_argument, NULL, ARG_BASE_TIME        },
 345                 { "unit",             required_argument, NULL, 'U'                  },
 346                 { "json",             required_argument, NULL, ARG_JSON             },
 347                 { "profile",          required_argument, NULL, ARG_PROFILE          },
 348                 { "table",            optional_argument, NULL, ARG_TABLE            },
 349                 { "no-legend",        optional_argument, NULL, ARG_NO_LEGEND        },
 350                 {}
 351         };
 352
 353         int r, c;
 354
 355         assert(argc >= 0);
 356         assert(argv);
 357
 358         while ((c = getopt_long(argc, argv, "hH:M:U:", options, NULL)) >= 0)
 359                 switch (c) {
 360
 361                 case 'h':
 362                         return help(0, NULL, NULL);
 363
 364                 case ARG_VERSION:
 365                         return version();
 366
 367                 case 'q':
 368                         arg_quiet = true;
 369                         break;
 370
 371                 case ARG_RECURSIVE_ERRORS:
 372                         if (streq(optarg, "help")) {
 373                                 DUMP_STRING_TABLE(recursive_errors, RecursiveErrors, _RECURSIVE_ERRORS_MAX);
 374                                 return 0;
 375                         }
 376                         r = recursive_errors_from_string(optarg);
 377                         if (r < 0)
 378                                 return log_error_errno(r, "Unknown mode passed to --recursive-errors='%s'.", optarg);
 379
 380                         arg_recursive_errors = r;
 381                         break;
 382
 383                 case ARG_ROOT:
 384                         r = parse_path_argument(optarg, /* suppress_root= */ true, &arg_root);
 385                         if (r < 0)
 386                                 return r;
 387                         break;
 388
 389                 case ARG_IMAGE:
 390                         r = parse_path_argument(optarg, /* suppress_root= */ false, &arg_image);
 391                         if (r < 0)
 392                                 return r;
 393                         break;
 394
 395                 case ARG_IMAGE_POLICY:
 396                         r = parse_image_policy_argument(optarg, &arg_image_policy);
 397                         if (r < 0)
 398                                 return r;
 399                         break;
 400
 401                 case ARG_SYSTEM:
 402                         arg_runtime_scope = RUNTIME_SCOPE_SYSTEM;
 403                         break;
 404
 405                 case ARG_USER:
 406                         arg_runtime_scope = RUNTIME_SCOPE_USER;
 407                         break;
 408
 409                 case ARG_GLOBAL:
 410                         arg_runtime_scope = RUNTIME_SCOPE_GLOBAL;
 411                         break;
 412
 413                 case ARG_ORDER:
 414                         arg_dot = DEP_ORDER;
 415                         break;
 416
 417                 case ARG_REQUIRE:
 418                         arg_dot = DEP_REQUIRE;
 419                         break;
 420
 421                 case ARG_DOT_FROM_PATTERN:
 422                         if (strv_extend(&arg_dot_from_patterns, optarg) < 0)
 423                                 return log_oom();
 424
 425                         break;
 426
 427                 case ARG_DOT_TO_PATTERN:
 428                         if (strv_extend(&arg_dot_to_patterns, optarg) < 0)
 429                                 return log_oom();
 430
 431                         break;
 432
 433                 case ARG_FUZZ:
 434                         r = parse_sec(optarg, &arg_fuzz);
 435                         if (r < 0)
 436                                 return r;
 437                         break;
 438
 439                 case ARG_NO_PAGER:
 440                         arg_pager_flags |= PAGER_DISABLE;
 441                         break;
 442
 443                 case 'H':
 444                         arg_transport = BUS_TRANSPORT_REMOTE;
 445                         arg_host = optarg;
 446                         break;
 447
 448                 case 'M':
 449                         arg_transport = BUS_TRANSPORT_MACHINE;
 450                         arg_host = optarg;
 451                         break;
 452
 453                 case ARG_MAN:
 454                         r = parse_boolean_argument("--man", optarg, &arg_man);
 455                         if (r < 0)
 456                                 return r;
 457                         break;
 458
 459                 case ARG_GENERATORS:
 460                         r = parse_boolean_argument("--generators", optarg, &arg_generators);
 461                         if (r < 0)
 462                                 return r;
 463                         break;
 464
 465                 case ARG_OFFLINE:
 466                         r = parse_boolean_argument("--offline", optarg, &arg_offline);
 467                         if (r < 0)
 468                                 return r;
 469                         break;
 470
 471                 case ARG_THRESHOLD:
 472                         r = safe_atou(optarg, &arg_threshold);
 473                         if (r < 0 || arg_threshold > 100)
 474                                 return log_error_errno(r < 0 ? r : SYNTHETIC_ERRNO(EINVAL), "Failed to parse threshold: %s", optarg);
 475
 476                         break;
 477
 478                 case ARG_SECURITY_POLICY:
 479                         r = parse_path_argument(optarg, /* suppress_root= */ false, &arg_security_policy);
 480                         if (r < 0)
 481                                 return r;
 482                         break;
 483
 484                 case ARG_JSON:
 485                         r = parse_json_argument(optarg, &arg_json_format_flags);
 486                         if (r <= 0)
 487                                 return r;
 488                         break;
 489
 490                 case ARG_ITERATIONS:
 491                         r = safe_atou(optarg, &arg_iterations);
 492                         if (r < 0)
 493                                 return log_error_errno(r, "Failed to parse iterations: %s", optarg);
 494                         break;
 495
 496                 case ARG_BASE_TIME:
 497                         r = parse_timestamp(optarg, &arg_base_time);
 498                         if (r < 0)
 499                                 return log_error_errno(r, "Failed to parse --base-time= parameter: %s", optarg);
 500                         break;
 501
 502                 case ARG_PROFILE:
 503                         if (isempty(optarg))
 504                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Profile file name is empty");
 505
 506                         if (is_path(optarg)) {
 507                                 r = parse_path_argument(optarg, /* suppress_root= */ false, &arg_profile);
 508                                 if (r < 0)
 509                                         return r;
 510                                 if (!endswith(arg_profile, ".conf"))
 511                                         return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Profile file name must end with .conf: %s", arg_profile);
 512                         } else {
 513                                 r = free_and_strdup(&arg_profile, optarg);
 514                                 if (r < 0)
 515                                         return log_oom();
 516                         }
 517
 518                         break;
 519
 520                 case 'U': {
 521                         _cleanup_free_ char *mangled = NULL;
 522
 523                         r = unit_name_mangle(optarg, UNIT_NAME_MANGLE_WARN, &mangled);
 524                         if (r < 0)
 525                                 return log_error_errno(r, "Failed to mangle unit name %s: %m", optarg);
 526
 527                         free_and_replace(arg_unit, mangled);
 528                         break;
 529                 }
 530
 531                 case ARG_TABLE:
 532                         arg_table = true;
 533                         break;
 534
 535                 case ARG_NO_LEGEND:
 536                         arg_legend = false;
 537                         break;
 538
 539                 case '?':
 540                         return -EINVAL;
 541
 542                 default:
 543                         assert_not_reached();
 544                 }
 545
 546         if (arg_offline && !streq_ptr(argv[optind], "security"))
 547                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 548                                        "Option --offline= is only supported for security right now.");
 549
 550         if (arg_json_format_flags != JSON_FORMAT_OFF && !STRPTR_IN_SET(argv[optind], "security", "inspect-elf", "plot", "fdstore", "pcrs"))
 551                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 552                                        "Option --json= is only supported for security, inspect-elf, plot, fdstore, pcrs right now.");
 553
 554         if (arg_threshold != 100 && !streq_ptr(argv[optind], "security"))
 555                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 556                                        "Option --threshold= is only supported for security right now.");
 557
 558         if (arg_runtime_scope == RUNTIME_SCOPE_GLOBAL &&
 559             !STR_IN_SET(argv[optind] ?: "time", "dot", "unit-paths", "verify"))
 560                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 561                                        "Option --global only makes sense with verbs dot, unit-paths, verify.");
 562
 563         if (streq_ptr(argv[optind], "cat-config") && arg_runtime_scope == RUNTIME_SCOPE_USER)
 564                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 565                                        "Option --user is not supported for cat-config right now.");
 566
 567         if (arg_security_policy && !streq_ptr(argv[optind], "security"))
 568                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 569                                        "Option --security-policy= is only supported for security.");
 570
 571         if ((arg_root || arg_image) && (!STRPTR_IN_SET(argv[optind], "cat-config", "verify", "condition")) &&
 572            (!(streq_ptr(argv[optind], "security") && arg_offline)))
 573                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 574                                        "Options --root= and --image= are only supported for cat-config, verify, condition and security when used with --offline= right now.");
 575
 576         /* Having both an image and a root is not supported by the code */
 577         if (arg_root && arg_image)
 578                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Please specify either --root= or --image=, the combination of both is not supported.");
 579
 580         if (arg_unit && !streq_ptr(argv[optind], "condition"))
 581                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Option --unit= is only supported for condition");
 582
 583         if (streq_ptr(argv[optind], "condition") && !arg_unit && optind >= argc - 1)
 584                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Too few arguments for condition");
 585
 586         if (streq_ptr(argv[optind], "condition") && arg_unit && optind < argc - 1)
 587                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "No conditions can be passed if --unit= is used.");
 588
 589         if ((!arg_legend && !streq_ptr(argv[optind], "plot")) ||
 590            (streq_ptr(argv[optind], "plot") && !arg_legend && !arg_table && FLAGS_SET(arg_json_format_flags, JSON_FORMAT_OFF)))
 591                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Option --no-legend is only supported for plot with either --table or --json=.");
 592
 593         if (arg_table && !streq_ptr(argv[optind], "plot"))
 594                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Option --table is only supported for plot right now.");
 595
 596         if (arg_table && !FLAGS_SET(arg_json_format_flags, JSON_FORMAT_OFF))
 597                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "--table and --json= are mutually exclusive.");
 598
 599         return 1; /* work to do */
 600 }
 601
 602 static int run(int argc, char *argv[]) {
 603         _cleanup_(loop_device_unrefp) LoopDevice *loop_device = NULL;
 604         _cleanup_(umount_and_freep) char *mounted_dir = NULL;
 605
 606         static const Verb verbs[] = {
 607                 { "help",              VERB_ANY, VERB_ANY, 0,            help                   },
 608                 { "time",              VERB_ANY, 1,        VERB_DEFAULT, verb_time              },
 609                 { "blame",             VERB_ANY, 1,        0,            verb_blame             },
 610                 { "critical-chain",    VERB_ANY, VERB_ANY, 0,            verb_critical_chain    },
 611                 { "plot",              VERB_ANY, 1,        0,            verb_plot              },
 612                 { "dot",               VERB_ANY, VERB_ANY, 0,            verb_dot               },
 613                 /* ↓ The following seven verbs are deprecated, from here … ↓ */
 614                 { "log-level",         VERB_ANY, 2,        0,            verb_log_control       },
 615                 { "log-target",        VERB_ANY, 2,        0,            verb_log_control       },
 616                 { "set-log-level",     2,        2,        0,            verb_log_control       },
 617                 { "get-log-level",     VERB_ANY, 1,        0,            verb_log_control       },
 618                 { "set-log-target",    2,        2,        0,            verb_log_control       },
 619                 { "get-log-target",    VERB_ANY, 1,        0,            verb_log_control       },
 620                 { "service-watchdogs", VERB_ANY, 2,        0,            verb_service_watchdogs },
 621                 /* ↑ … until here ↑ */
 622                 { "dump",              VERB_ANY, VERB_ANY, 0,            verb_dump              },
 623                 { "cat-config",        2,        VERB_ANY, 0,            verb_cat_config        },
 624                 { "unit-files",        VERB_ANY, VERB_ANY, 0,            verb_unit_files        },
 625                 { "unit-paths",        1,        1,        0,            verb_unit_paths        },
 626                 { "exit-status",       VERB_ANY, VERB_ANY, 0,            verb_exit_status       },
 627                 { "syscall-filter",    VERB_ANY, VERB_ANY, 0,            verb_syscall_filters   },
 628                 { "capability",        VERB_ANY, VERB_ANY, 0,            verb_capabilities      },
 629                 { "filesystems",       VERB_ANY, VERB_ANY, 0,            verb_filesystems       },
 630                 { "condition",         VERB_ANY, VERB_ANY, 0,            verb_condition         },
 631                 { "compare-versions",  3,        4,        0,            verb_compare_versions  },
 632                 { "verify",            2,        VERB_ANY, 0,            verb_verify            },
 633                 { "calendar",          2,        VERB_ANY, 0,            verb_calendar          },
 634                 { "timestamp",         2,        VERB_ANY, 0,            verb_timestamp         },
 635                 { "timespan",          2,        VERB_ANY, 0,            verb_timespan          },
 636                 { "security",          VERB_ANY, VERB_ANY, 0,            verb_security          },
 637                 { "inspect-elf",       2,        VERB_ANY, 0,            verb_elf_inspection    },
 638                 { "malloc",            VERB_ANY, VERB_ANY, 0,            verb_malloc            },
 639                 { "fdstore",           2,        VERB_ANY, 0,            verb_fdstore           },
 640                 { "image-policy",      2,        2,        0,            verb_image_policy      },
 641                 { "pcrs",              VERB_ANY, VERB_ANY, 0,            verb_pcrs              },
 642                 {}
 643         };
 644
 645         int r;
 646
 647         setlocale(LC_ALL, "");
 648         setlocale(LC_NUMERIC, "C"); /* we want to format/parse floats in C style */
 649
 650         log_setup();
 651
 652         r = parse_argv(argc, argv);
 653         if (r <= 0)
 654                 return r;
 655
 656         /* Open up and mount the image */
 657         if (arg_image) {
 658                 assert(!arg_root);
 659
 660                 r = mount_image_privately_interactively(
 661                                 arg_image,
 662                                 arg_image_policy,
 663                                 DISSECT_IMAGE_GENERIC_ROOT |
 664                                 DISSECT_IMAGE_RELAX_VAR_CHECK |
 665                                 DISSECT_IMAGE_READ_ONLY,
 666                                 &mounted_dir,
 667                                 /* ret_dir_fd= */ NULL,
 668                                 &loop_device);
 669                 if (r < 0)
 670                         return r;
 671
 672                 arg_root = strdup(mounted_dir);
 673                 if (!arg_root)
 674                         return log_oom();
 675         }
 676
 677         return dispatch_verb(argc, argv, verbs, NULL);
 678 }
 679
 680 DEFINE_MAIN_FUNCTION_WITH_POSITIVE_FAILURE(run);