src/basic/unit-name.c

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2010 Lennart Poettering
   5
   6   systemd is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as published by
   8   the Free Software Foundation; either version 2.1 of the License, or
   9   (at your option) any later version.
  10
  11   systemd is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  18 ***/
  19
  20 #include <errno.h>
  21 #include <stddef.h>
  22 #include <stdint.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25
  26 #include "alloc-util.h"
  27 #include "bus-label.h"
  28 #include "glob-util.h"
  29 #include "hexdecoct.h"
  30 #include "macro.h"
  31 #include "path-util.h"
  32 #include "string-table.h"
  33 #include "string-util.h"
  34 #include "strv.h"
  35 #include "unit-name.h"
  36
  37 /* Characters valid in a unit name. */
  38 #define VALID_CHARS                             \
  39         DIGITS                                  \
  40         LETTERS                                 \
  41         ":-_.\\"
  42
  43 /* The same, but also permits the single @ character that may appear */
  44 #define VALID_CHARS_WITH_AT                     \
  45         "@"                                     \
  46         VALID_CHARS
  47
  48 /* All chars valid in a unit name glob */
  49 #define VALID_CHARS_GLOB                        \
  50         VALID_CHARS_WITH_AT                     \
  51         "[]!-*?"
  52
  53 bool unit_name_is_valid(const char *n, UnitNameFlags flags) {
  54         const char *e, *i, *at;
  55
  56         assert((flags & ~(UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE)) == 0);
  57
  58         if (_unlikely_(flags == 0))
  59                 return false;
  60
  61         if (isempty(n))
  62                 return false;
  63
  64         if (strlen(n) >= UNIT_NAME_MAX)
  65                 return false;
  66
  67         e = strrchr(n, '.');
  68         if (!e || e == n)
  69                 return false;
  70
  71         if (unit_type_from_string(e + 1) < 0)
  72                 return false;
  73
  74         for (i = n, at = NULL; i < e; i++) {
  75
  76                 if (*i == '@' && !at)
  77                         at = i;
  78
  79                 if (!strchr("@" VALID_CHARS, *i))
  80                         return false;
  81         }
  82
  83         if (at == n)
  84                 return false;
  85
  86         if (flags & UNIT_NAME_PLAIN)
  87                 if (!at)
  88                         return true;
  89
  90         if (flags & UNIT_NAME_INSTANCE)
  91                 if (at && e > at + 1)
  92                         return true;
  93
  94         if (flags & UNIT_NAME_TEMPLATE)
  95                 if (at && e == at + 1)
  96                         return true;
  97
  98         return false;
  99 }
 100
 101 bool unit_prefix_is_valid(const char *p) {
 102
 103         /* We don't allow additional @ in the prefix string */
 104
 105         if (isempty(p))
 106                 return false;
 107
 108         return in_charset(p, VALID_CHARS);
 109 }
 110
 111 bool unit_instance_is_valid(const char *i) {
 112
 113         /* The max length depends on the length of the string, so we
 114          * don't really check this here. */
 115
 116         if (isempty(i))
 117                 return false;
 118
 119         /* We allow additional @ in the instance string, we do not
 120          * allow them in the prefix! */
 121
 122         return in_charset(i, "@" VALID_CHARS);
 123 }
 124
 125 bool unit_suffix_is_valid(const char *s) {
 126         if (isempty(s))
 127                 return false;
 128
 129         if (s[0] != '.')
 130                 return false;
 131
 132         if (unit_type_from_string(s + 1) < 0)
 133                 return false;
 134
 135         return true;
 136 }
 137
 138 int unit_name_to_prefix(const char *n, char **ret) {
 139         const char *p;
 140         char *s;
 141
 142         assert(n);
 143         assert(ret);
 144
 145         if (!unit_name_is_valid(n, UNIT_NAME_ANY))
 146                 return -EINVAL;
 147
 148         p = strchr(n, '@');
 149         if (!p)
 150                 p = strrchr(n, '.');
 151
 152         assert_se(p);
 153
 154         s = strndup(n, p - n);
 155         if (!s)
 156                 return -ENOMEM;
 157
 158         *ret = s;
 159         return 0;
 160 }
 161
 162 int unit_name_to_instance(const char *n, char **instance) {
 163         const char *p, *d;
 164         char *i;
 165
 166         assert(n);
 167         assert(instance);
 168
 169         if (!unit_name_is_valid(n, UNIT_NAME_ANY))
 170                 return -EINVAL;
 171
 172         /* Everything past the first @ and before the last . is the instance */
 173         p = strchr(n, '@');
 174         if (!p) {
 175                 *instance = NULL;
 176                 return 0;
 177         }
 178
 179         p++;
 180
 181         d = strrchr(p, '.');
 182         if (!d)
 183                 return -EINVAL;
 184
 185         i = strndup(p, d-p);
 186         if (!i)
 187                 return -ENOMEM;
 188
 189         *instance = i;
 190         return 1;
 191 }
 192
 193 int unit_name_to_prefix_and_instance(const char *n, char **ret) {
 194         const char *d;
 195         char *s;
 196
 197         assert(n);
 198         assert(ret);
 199
 200         if (!unit_name_is_valid(n, UNIT_NAME_ANY))
 201                 return -EINVAL;
 202
 203         d = strrchr(n, '.');
 204         if (!d)
 205                 return -EINVAL;
 206
 207         s = strndup(n, d - n);
 208         if (!s)
 209                 return -ENOMEM;
 210
 211         *ret = s;
 212         return 0;
 213 }
 214
 215 UnitType unit_name_to_type(const char *n) {
 216         const char *e;
 217
 218         assert(n);
 219
 220         if (!unit_name_is_valid(n, UNIT_NAME_ANY))
 221                 return _UNIT_TYPE_INVALID;
 222
 223         assert_se(e = strrchr(n, '.'));
 224
 225         return unit_type_from_string(e + 1);
 226 }
 227
 228 int unit_name_change_suffix(const char *n, const char *suffix, char **ret) {
 229         char *e, *s;
 230         size_t a, b;
 231
 232         assert(n);
 233         assert(suffix);
 234         assert(ret);
 235
 236         if (!unit_name_is_valid(n, UNIT_NAME_ANY))
 237                 return -EINVAL;
 238
 239         if (!unit_suffix_is_valid(suffix))
 240                 return -EINVAL;
 241
 242         assert_se(e = strrchr(n, '.'));
 243
 244         a = e - n;
 245         b = strlen(suffix);
 246
 247         s = new(char, a + b + 1);
 248         if (!s)
 249                 return -ENOMEM;
 250
 251         strcpy(mempcpy(s, n, a), suffix);
 252         *ret = s;
 253
 254         return 0;
 255 }
 256
 257 int unit_name_build(const char *prefix, const char *instance, const char *suffix, char **ret) {
 258         char *s;
 259
 260         assert(prefix);
 261         assert(suffix);
 262         assert(ret);
 263
 264         if (!unit_prefix_is_valid(prefix))
 265                 return -EINVAL;
 266
 267         if (instance && !unit_instance_is_valid(instance))
 268                 return -EINVAL;
 269
 270         if (!unit_suffix_is_valid(suffix))
 271                 return -EINVAL;
 272
 273         if (!instance)
 274                 s = strappend(prefix, suffix);
 275         else
 276                 s = strjoin(prefix, "@", instance, suffix, NULL);
 277         if (!s)
 278                 return -ENOMEM;
 279
 280         *ret = s;
 281         return 0;
 282 }
 283
 284 static char *do_escape_char(char c, char *t) {
 285         assert(t);
 286
 287         *(t++) = '\\';
 288         *(t++) = 'x';
 289         *(t++) = hexchar(c >> 4);
 290         *(t++) = hexchar(c);
 291
 292         return t;
 293 }
 294
 295 static char *do_escape(const char *f, char *t) {
 296         assert(f);
 297         assert(t);
 298
 299         /* do not create units with a leading '.', like for "/.dotdir" mount points */
 300         if (*f == '.') {
 301                 t = do_escape_char(*f, t);
 302                 f++;
 303         }
 304
 305         for (; *f; f++) {
 306                 if (*f == '/')
 307                         *(t++) = '-';
 308                 else if (*f == '-' || *f == '\\' || !strchr(VALID_CHARS, *f))
 309                         t = do_escape_char(*f, t);
 310                 else
 311                         *(t++) = *f;
 312         }
 313
 314         return t;
 315 }
 316
 317 char *unit_name_escape(const char *f) {
 318         char *r, *t;
 319
 320         assert(f);
 321
 322         r = new(char, strlen(f)*4+1);
 323         if (!r)
 324                 return NULL;
 325
 326         t = do_escape(f, r);
 327         *t = 0;
 328
 329         return r;
 330 }
 331
 332 int unit_name_unescape(const char *f, char **ret) {
 333         _cleanup_free_ char *r = NULL;
 334         char *t;
 335
 336         assert(f);
 337
 338         r = strdup(f);
 339         if (!r)
 340                 return -ENOMEM;
 341
 342         for (t = r; *f; f++) {
 343                 if (*f == '-')
 344                         *(t++) = '/';
 345                 else if (*f == '\\') {
 346                         int a, b;
 347
 348                         if (f[1] != 'x')
 349                                 return -EINVAL;
 350
 351                         a = unhexchar(f[2]);
 352                         if (a < 0)
 353                                 return -EINVAL;
 354
 355                         b = unhexchar(f[3]);
 356                         if (b < 0)
 357                                 return -EINVAL;
 358
 359                         *(t++) = (char) (((uint8_t) a << 4U) | (uint8_t) b);
 360                         f += 3;
 361                 } else
 362                         *(t++) = *f;
 363         }
 364
 365         *t = 0;
 366
 367         *ret = r;
 368         r = NULL;
 369
 370         return 0;
 371 }
 372
 373 int unit_name_path_escape(const char *f, char **ret) {
 374         char *p, *s;
 375
 376         assert(f);
 377         assert(ret);
 378
 379         p = strdupa(f);
 380         if (!p)
 381                 return -ENOMEM;
 382
 383         path_kill_slashes(p);
 384
 385         if (STR_IN_SET(p, "/", ""))
 386                 s = strdup("-");
 387         else {
 388                 char *e;
 389
 390                 if (!path_is_safe(p))
 391                         return -EINVAL;
 392
 393                 /* Truncate trailing slashes */
 394                 e = endswith(p, "/");
 395                 if (e)
 396                         *e = 0;
 397
 398                 /* Truncate leading slashes */
 399                 if (p[0] == '/')
 400                         p++;
 401
 402                 s = unit_name_escape(p);
 403         }
 404         if (!s)
 405                 return -ENOMEM;
 406
 407         *ret = s;
 408         return 0;
 409 }
 410
 411 int unit_name_path_unescape(const char *f, char **ret) {
 412         char *s;
 413         int r;
 414
 415         assert(f);
 416
 417         if (isempty(f))
 418                 return -EINVAL;
 419
 420         if (streq(f, "-")) {
 421                 s = strdup("/");
 422                 if (!s)
 423                         return -ENOMEM;
 424         } else {
 425                 char *w;
 426
 427                 r = unit_name_unescape(f, &w);
 428                 if (r < 0)
 429                         return r;
 430
 431                 /* Don't accept trailing or leading slashes */
 432                 if (startswith(w, "/") || endswith(w, "/")) {
 433                         free(w);
 434                         return -EINVAL;
 435                 }
 436
 437                 /* Prefix a slash again */
 438                 s = strappend("/", w);
 439                 free(w);
 440                 if (!s)
 441                         return -ENOMEM;
 442
 443                 if (!path_is_safe(s)) {
 444                         free(s);
 445                         return -EINVAL;
 446                 }
 447         }
 448
 449         if (ret)
 450                 *ret = s;
 451         else
 452                 free(s);
 453
 454         return 0;
 455 }
 456
 457 int unit_name_replace_instance(const char *f, const char *i, char **ret) {
 458         const char *p, *e;
 459         char *s;
 460         size_t a, b;
 461
 462         assert(f);
 463         assert(i);
 464         assert(ret);
 465
 466         if (!unit_name_is_valid(f, UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE))
 467                 return -EINVAL;
 468         if (!unit_instance_is_valid(i))
 469                 return -EINVAL;
 470
 471         assert_se(p = strchr(f, '@'));
 472         assert_se(e = strrchr(f, '.'));
 473
 474         a = p - f;
 475         b = strlen(i);
 476
 477         s = new(char, a + 1 + b + strlen(e) + 1);
 478         if (!s)
 479                 return -ENOMEM;
 480
 481         strcpy(mempcpy(mempcpy(s, f, a + 1), i, b), e);
 482
 483         *ret = s;
 484         return 0;
 485 }
 486
 487 int unit_name_template(const char *f, char **ret) {
 488         const char *p, *e;
 489         char *s;
 490         size_t a;
 491
 492         assert(f);
 493         assert(ret);
 494
 495         if (!unit_name_is_valid(f, UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE))
 496                 return -EINVAL;
 497
 498         assert_se(p = strchr(f, '@'));
 499         assert_se(e = strrchr(f, '.'));
 500
 501         a = p - f;
 502
 503         s = new(char, a + 1 + strlen(e) + 1);
 504         if (!s)
 505                 return -ENOMEM;
 506
 507         strcpy(mempcpy(s, f, a + 1), e);
 508
 509         *ret = s;
 510         return 0;
 511 }
 512
 513 int unit_name_from_path(const char *path, const char *suffix, char **ret) {
 514         _cleanup_free_ char *p = NULL;
 515         char *s = NULL;
 516         int r;
 517
 518         assert(path);
 519         assert(suffix);
 520         assert(ret);
 521
 522         if (!unit_suffix_is_valid(suffix))
 523                 return -EINVAL;
 524
 525         r = unit_name_path_escape(path, &p);
 526         if (r < 0)
 527                 return r;
 528
 529         s = strappend(p, suffix);
 530         if (!s)
 531                 return -ENOMEM;
 532
 533         *ret = s;
 534         return 0;
 535 }
 536
 537 int unit_name_from_path_instance(const char *prefix, const char *path, const char *suffix, char **ret) {
 538         _cleanup_free_ char *p = NULL;
 539         char *s;
 540         int r;
 541
 542         assert(prefix);
 543         assert(path);
 544         assert(suffix);
 545         assert(ret);
 546
 547         if (!unit_prefix_is_valid(prefix))
 548                 return -EINVAL;
 549
 550         if (!unit_suffix_is_valid(suffix))
 551                 return -EINVAL;
 552
 553         r = unit_name_path_escape(path, &p);
 554         if (r < 0)
 555                 return r;
 556
 557         s = strjoin(prefix, "@", p, suffix, NULL);
 558         if (!s)
 559                 return -ENOMEM;
 560
 561         *ret = s;
 562         return 0;
 563 }
 564
 565 int unit_name_to_path(const char *name, char **ret) {
 566         _cleanup_free_ char *prefix = NULL;
 567         int r;
 568
 569         assert(name);
 570
 571         r = unit_name_to_prefix(name, &prefix);
 572         if (r < 0)
 573                 return r;
 574
 575         return unit_name_path_unescape(prefix, ret);
 576 }
 577
 578 char *unit_dbus_path_from_name(const char *name) {
 579         _cleanup_free_ char *e = NULL;
 580
 581         assert(name);
 582
 583         e = bus_label_escape(name);
 584         if (!e)
 585                 return NULL;
 586
 587         return strappend("/org/freedesktop/systemd1/unit/", e);
 588 }
 589
 590 int unit_name_from_dbus_path(const char *path, char **name) {
 591         const char *e;
 592         char *n;
 593
 594         e = startswith(path, "/org/freedesktop/systemd1/unit/");
 595         if (!e)
 596                 return -EINVAL;
 597
 598         n = bus_label_unescape(e);
 599         if (!n)
 600                 return -ENOMEM;
 601
 602         *name = n;
 603         return 0;
 604 }
 605
 606 const char* unit_dbus_interface_from_type(UnitType t) {
 607
 608         static const char *const table[_UNIT_TYPE_MAX] = {
 609                 [UNIT_SERVICE] = "org.freedesktop.systemd1.Service",
 610                 [UNIT_SOCKET] = "org.freedesktop.systemd1.Socket",
 611                 [UNIT_BUSNAME] = "org.freedesktop.systemd1.BusName",
 612                 [UNIT_TARGET] = "org.freedesktop.systemd1.Target",
 613                 [UNIT_DEVICE] = "org.freedesktop.systemd1.Device",
 614                 [UNIT_MOUNT] = "org.freedesktop.systemd1.Mount",
 615                 [UNIT_AUTOMOUNT] = "org.freedesktop.systemd1.Automount",
 616                 [UNIT_SWAP] = "org.freedesktop.systemd1.Swap",
 617                 [UNIT_TIMER] = "org.freedesktop.systemd1.Timer",
 618                 [UNIT_PATH] = "org.freedesktop.systemd1.Path",
 619                 [UNIT_SLICE] = "org.freedesktop.systemd1.Slice",
 620                 [UNIT_SCOPE] = "org.freedesktop.systemd1.Scope",
 621         };
 622
 623         if (t < 0)
 624                 return NULL;
 625         if (t >= _UNIT_TYPE_MAX)
 626                 return NULL;
 627
 628         return table[t];
 629 }
 630
 631 const char *unit_dbus_interface_from_name(const char *name) {
 632         UnitType t;
 633
 634         t = unit_name_to_type(name);
 635         if (t < 0)
 636                 return NULL;
 637
 638         return unit_dbus_interface_from_type(t);
 639 }
 640
 641 static char *do_escape_mangle(const char *f, UnitNameMangle allow_globs, char *t) {
 642         const char *valid_chars;
 643
 644         assert(f);
 645         assert(IN_SET(allow_globs, UNIT_NAME_GLOB, UNIT_NAME_NOGLOB));
 646         assert(t);
 647
 648         /* We'll only escape the obvious characters here, to play
 649          * safe. */
 650
 651         valid_chars = allow_globs == UNIT_NAME_GLOB ? VALID_CHARS_GLOB : VALID_CHARS_WITH_AT;
 652
 653         for (; *f; f++) {
 654                 if (*f == '/')
 655                         *(t++) = '-';
 656                 else if (!strchr(valid_chars, *f))
 657                         t = do_escape_char(*f, t);
 658                 else
 659                         *(t++) = *f;
 660         }
 661
 662         return t;
 663 }
 664
 665 /**
 666  *  Convert a string to a unit name. /dev/blah is converted to dev-blah.device,
 667  *  /blah/blah is converted to blah-blah.mount, anything else is left alone,
 668  *  except that @suffix is appended if a valid unit suffix is not present.
 669  *
 670  *  If @allow_globs, globs characters are preserved. Otherwise, they are escaped.
 671  */
 672 int unit_name_mangle_with_suffix(const char *name, UnitNameMangle allow_globs, const char *suffix, char **ret) {
 673         char *s, *t;
 674         int r;
 675
 676         assert(name);
 677         assert(suffix);
 678         assert(ret);
 679
 680         if (isempty(name)) /* We cannot mangle empty unit names to become valid, sorry. */
 681                 return -EINVAL;
 682
 683         if (!unit_suffix_is_valid(suffix))
 684                 return -EINVAL;
 685
 686         /* Already a fully valid unit name? If so, no mangling is necessary... */
 687         if (unit_name_is_valid(name, UNIT_NAME_ANY))
 688                 goto good;
 689
 690         /* Already a fully valid globbing expression? If so, no mangling is necessary either... */
 691         if (allow_globs == UNIT_NAME_GLOB &&
 692             string_is_glob(name) &&
 693             in_charset(name, VALID_CHARS_GLOB))
 694                 goto good;
 695
 696         if (is_device_path(name)) {
 697                 r = unit_name_from_path(name, ".device", ret);
 698                 if (r >= 0)
 699                         return 1;
 700                 if (r != -EINVAL)
 701                         return r;
 702         }
 703
 704         if (path_is_absolute(name)) {
 705                 r = unit_name_from_path(name, ".mount", ret);
 706                 if (r >= 0)
 707                         return 1;
 708                 if (r != -EINVAL)
 709                         return r;
 710         }
 711
 712         s = new(char, strlen(name) * 4 + strlen(suffix) + 1);
 713         if (!s)
 714                 return -ENOMEM;
 715
 716         t = do_escape_mangle(name, allow_globs, s);
 717         *t = 0;
 718
 719         /* Append a suffix if it doesn't have any, but only if this is not a glob, so that we can allow "foo.*" as a
 720          * valid glob. */
 721         if ((allow_globs != UNIT_NAME_GLOB || !string_is_glob(s)) && unit_name_to_type(s) < 0)
 722                 strcpy(t, suffix);
 723
 724         *ret = s;
 725         return 1;
 726
 727 good:
 728         s = strdup(name);
 729         if (!s)
 730                 return -ENOMEM;
 731
 732         *ret = s;
 733         return 0;
 734 }
 735
 736 int slice_build_parent_slice(const char *slice, char **ret) {
 737         char *s, *dash;
 738         int r;
 739
 740         assert(slice);
 741         assert(ret);
 742
 743         if (!slice_name_is_valid(slice))
 744                 return -EINVAL;
 745
 746         if (streq(slice, "-.slice")) {
 747                 *ret = NULL;
 748                 return 0;
 749         }
 750
 751         s = strdup(slice);
 752         if (!s)
 753                 return -ENOMEM;
 754
 755         dash = strrchr(s, '-');
 756         if (dash)
 757                 strcpy(dash, ".slice");
 758         else {
 759                 r = free_and_strdup(&s, "-.slice");
 760                 if (r < 0) {
 761                         free(s);
 762                         return r;
 763                 }
 764         }
 765
 766         *ret = s;
 767         return 1;
 768 }
 769
 770 int slice_build_subslice(const char *slice, const char*name, char **ret) {
 771         char *subslice;
 772
 773         assert(slice);
 774         assert(name);
 775         assert(ret);
 776
 777         if (!slice_name_is_valid(slice))
 778                 return -EINVAL;
 779
 780         if (!unit_prefix_is_valid(name))
 781                 return -EINVAL;
 782
 783         if (streq(slice, "-.slice"))
 784                 subslice = strappend(name, ".slice");
 785         else {
 786                 char *e;
 787
 788                 assert_se(e = endswith(slice, ".slice"));
 789
 790                 subslice = new(char, (e - slice) + 1 + strlen(name) + 6 + 1);
 791                 if (!subslice)
 792                         return -ENOMEM;
 793
 794                 stpcpy(stpcpy(stpcpy(mempcpy(subslice, slice, e - slice), "-"), name), ".slice");
 795         }
 796
 797         *ret = subslice;
 798         return 0;
 799 }
 800
 801 bool slice_name_is_valid(const char *name) {
 802         const char *p, *e;
 803         bool dash = false;
 804
 805         if (!unit_name_is_valid(name, UNIT_NAME_PLAIN))
 806                 return false;
 807
 808         if (streq(name, "-.slice"))
 809                 return true;
 810
 811         e = endswith(name, ".slice");
 812         if (!e)
 813                 return false;
 814
 815         for (p = name; p < e; p++) {
 816
 817                 if (*p == '-') {
 818
 819                         /* Don't allow initial dash */
 820                         if (p == name)
 821                                 return false;
 822
 823                         /* Don't allow multiple dashes */
 824                         if (dash)
 825                                 return false;
 826
 827                         dash = true;
 828                 } else
 829                         dash = false;
 830         }
 831
 832         /* Don't allow trailing hash */
 833         if (dash)
 834                 return false;
 835
 836         return true;
 837 }
 838
 839 static const char* const unit_type_table[_UNIT_TYPE_MAX] = {
 840         [UNIT_SERVICE] = "service",
 841         [UNIT_SOCKET] = "socket",
 842         [UNIT_BUSNAME] = "busname",
 843         [UNIT_TARGET] = "target",
 844         [UNIT_DEVICE] = "device",
 845         [UNIT_MOUNT] = "mount",
 846         [UNIT_AUTOMOUNT] = "automount",
 847         [UNIT_SWAP] = "swap",
 848         [UNIT_TIMER] = "timer",
 849         [UNIT_PATH] = "path",
 850         [UNIT_SLICE] = "slice",
 851         [UNIT_SCOPE] = "scope",
 852 };
 853
 854 DEFINE_STRING_TABLE_LOOKUP(unit_type, UnitType);
 855
 856 static const char* const unit_load_state_table[_UNIT_LOAD_STATE_MAX] = {
 857         [UNIT_STUB] = "stub",
 858         [UNIT_LOADED] = "loaded",
 859         [UNIT_NOT_FOUND] = "not-found",
 860         [UNIT_ERROR] = "error",
 861         [UNIT_MERGED] = "merged",
 862         [UNIT_MASKED] = "masked"
 863 };
 864
 865 DEFINE_STRING_TABLE_LOOKUP(unit_load_state, UnitLoadState);
 866
 867 static const char* const unit_active_state_table[_UNIT_ACTIVE_STATE_MAX] = {
 868         [UNIT_ACTIVE] = "active",
 869         [UNIT_RELOADING] = "reloading",
 870         [UNIT_INACTIVE] = "inactive",
 871         [UNIT_FAILED] = "failed",
 872         [UNIT_ACTIVATING] = "activating",
 873         [UNIT_DEACTIVATING] = "deactivating"
 874 };
 875
 876 DEFINE_STRING_TABLE_LOOKUP(unit_active_state, UnitActiveState);
 877
 878 static const char* const automount_state_table[_AUTOMOUNT_STATE_MAX] = {
 879         [AUTOMOUNT_DEAD] = "dead",
 880         [AUTOMOUNT_WAITING] = "waiting",
 881         [AUTOMOUNT_RUNNING] = "running",
 882         [AUTOMOUNT_FAILED] = "failed"
 883 };
 884
 885 DEFINE_STRING_TABLE_LOOKUP(automount_state, AutomountState);
 886
 887 static const char* const busname_state_table[_BUSNAME_STATE_MAX] = {
 888         [BUSNAME_DEAD] = "dead",
 889         [BUSNAME_MAKING] = "making",
 890         [BUSNAME_REGISTERED] = "registered",
 891         [BUSNAME_LISTENING] = "listening",
 892         [BUSNAME_RUNNING] = "running",
 893         [BUSNAME_SIGTERM] = "sigterm",
 894         [BUSNAME_SIGKILL] = "sigkill",
 895         [BUSNAME_FAILED] = "failed",
 896 };
 897
 898 DEFINE_STRING_TABLE_LOOKUP(busname_state, BusNameState);
 899
 900 static const char* const device_state_table[_DEVICE_STATE_MAX] = {
 901         [DEVICE_DEAD] = "dead",
 902         [DEVICE_TENTATIVE] = "tentative",
 903         [DEVICE_PLUGGED] = "plugged",
 904 };
 905
 906 DEFINE_STRING_TABLE_LOOKUP(device_state, DeviceState);
 907
 908 static const char* const mount_state_table[_MOUNT_STATE_MAX] = {
 909         [MOUNT_DEAD] = "dead",
 910         [MOUNT_MOUNTING] = "mounting",
 911         [MOUNT_MOUNTING_DONE] = "mounting-done",
 912         [MOUNT_MOUNTED] = "mounted",
 913         [MOUNT_REMOUNTING] = "remounting",
 914         [MOUNT_UNMOUNTING] = "unmounting",
 915         [MOUNT_MOUNTING_SIGTERM] = "mounting-sigterm",
 916         [MOUNT_MOUNTING_SIGKILL] = "mounting-sigkill",
 917         [MOUNT_REMOUNTING_SIGTERM] = "remounting-sigterm",
 918         [MOUNT_REMOUNTING_SIGKILL] = "remounting-sigkill",
 919         [MOUNT_UNMOUNTING_SIGTERM] = "unmounting-sigterm",
 920         [MOUNT_UNMOUNTING_SIGKILL] = "unmounting-sigkill",
 921         [MOUNT_FAILED] = "failed"
 922 };
 923
 924 DEFINE_STRING_TABLE_LOOKUP(mount_state, MountState);
 925
 926 static const char* const path_state_table[_PATH_STATE_MAX] = {
 927         [PATH_DEAD] = "dead",
 928         [PATH_WAITING] = "waiting",
 929         [PATH_RUNNING] = "running",
 930         [PATH_FAILED] = "failed"
 931 };
 932
 933 DEFINE_STRING_TABLE_LOOKUP(path_state, PathState);
 934
 935 static const char* const scope_state_table[_SCOPE_STATE_MAX] = {
 936         [SCOPE_DEAD] = "dead",
 937         [SCOPE_RUNNING] = "running",
 938         [SCOPE_ABANDONED] = "abandoned",
 939         [SCOPE_STOP_SIGTERM] = "stop-sigterm",
 940         [SCOPE_STOP_SIGKILL] = "stop-sigkill",
 941         [SCOPE_FAILED] = "failed",
 942 };
 943
 944 DEFINE_STRING_TABLE_LOOKUP(scope_state, ScopeState);
 945
 946 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
 947         [SERVICE_DEAD] = "dead",
 948         [SERVICE_START_PRE] = "start-pre",
 949         [SERVICE_START] = "start",
 950         [SERVICE_START_POST] = "start-post",
 951         [SERVICE_RUNNING] = "running",
 952         [SERVICE_EXITED] = "exited",
 953         [SERVICE_RELOAD] = "reload",
 954         [SERVICE_STOP] = "stop",
 955         [SERVICE_STOP_SIGABRT] = "stop-sigabrt",
 956         [SERVICE_STOP_SIGTERM] = "stop-sigterm",
 957         [SERVICE_STOP_SIGKILL] = "stop-sigkill",
 958         [SERVICE_STOP_POST] = "stop-post",
 959         [SERVICE_FINAL_SIGTERM] = "final-sigterm",
 960         [SERVICE_FINAL_SIGKILL] = "final-sigkill",
 961         [SERVICE_FAILED] = "failed",
 962         [SERVICE_AUTO_RESTART] = "auto-restart",
 963 };
 964
 965 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
 966
 967 static const char* const slice_state_table[_SLICE_STATE_MAX] = {
 968         [SLICE_DEAD] = "dead",
 969         [SLICE_ACTIVE] = "active"
 970 };
 971
 972 DEFINE_STRING_TABLE_LOOKUP(slice_state, SliceState);
 973
 974 static const char* const socket_state_table[_SOCKET_STATE_MAX] = {
 975         [SOCKET_DEAD] = "dead",
 976         [SOCKET_START_PRE] = "start-pre",
 977         [SOCKET_START_CHOWN] = "start-chown",
 978         [SOCKET_START_POST] = "start-post",
 979         [SOCKET_LISTENING] = "listening",
 980         [SOCKET_RUNNING] = "running",
 981         [SOCKET_STOP_PRE] = "stop-pre",
 982         [SOCKET_STOP_PRE_SIGTERM] = "stop-pre-sigterm",
 983         [SOCKET_STOP_PRE_SIGKILL] = "stop-pre-sigkill",
 984         [SOCKET_STOP_POST] = "stop-post",
 985         [SOCKET_FINAL_SIGTERM] = "final-sigterm",
 986         [SOCKET_FINAL_SIGKILL] = "final-sigkill",
 987         [SOCKET_FAILED] = "failed"
 988 };
 989
 990 DEFINE_STRING_TABLE_LOOKUP(socket_state, SocketState);
 991
 992 static const char* const swap_state_table[_SWAP_STATE_MAX] = {
 993         [SWAP_DEAD] = "dead",
 994         [SWAP_ACTIVATING] = "activating",
 995         [SWAP_ACTIVATING_DONE] = "activating-done",
 996         [SWAP_ACTIVE] = "active",
 997         [SWAP_DEACTIVATING] = "deactivating",
 998         [SWAP_ACTIVATING_SIGTERM] = "activating-sigterm",
 999         [SWAP_ACTIVATING_SIGKILL] = "activating-sigkill",
1000         [SWAP_DEACTIVATING_SIGTERM] = "deactivating-sigterm",
1001         [SWAP_DEACTIVATING_SIGKILL] = "deactivating-sigkill",
1002         [SWAP_FAILED] = "failed"
1003 };
1004
1005 DEFINE_STRING_TABLE_LOOKUP(swap_state, SwapState);
1006
1007 static const char* const target_state_table[_TARGET_STATE_MAX] = {
1008         [TARGET_DEAD] = "dead",
1009         [TARGET_ACTIVE] = "active"
1010 };
1011
1012 DEFINE_STRING_TABLE_LOOKUP(target_state, TargetState);
1013
1014 static const char* const timer_state_table[_TIMER_STATE_MAX] = {
1015         [TIMER_DEAD] = "dead",
1016         [TIMER_WAITING] = "waiting",
1017         [TIMER_RUNNING] = "running",
1018         [TIMER_ELAPSED] = "elapsed",
1019         [TIMER_FAILED] = "failed"
1020 };
1021
1022 DEFINE_STRING_TABLE_LOOKUP(timer_state, TimerState);
1023
1024 static const char* const unit_dependency_table[_UNIT_DEPENDENCY_MAX] = {
1025         [UNIT_REQUIRES] = "Requires",
1026         [UNIT_REQUISITE] = "Requisite",
1027         [UNIT_WANTS] = "Wants",
1028         [UNIT_BINDS_TO] = "BindsTo",
1029         [UNIT_PART_OF] = "PartOf",
1030         [UNIT_REQUIRED_BY] = "RequiredBy",
1031         [UNIT_REQUISITE_OF] = "RequisiteOf",
1032         [UNIT_WANTED_BY] = "WantedBy",
1033         [UNIT_BOUND_BY] = "BoundBy",
1034         [UNIT_CONSISTS_OF] = "ConsistsOf",
1035         [UNIT_CONFLICTS] = "Conflicts",
1036         [UNIT_CONFLICTED_BY] = "ConflictedBy",
1037         [UNIT_BEFORE] = "Before",
1038         [UNIT_AFTER] = "After",
1039         [UNIT_ON_FAILURE] = "OnFailure",
1040         [UNIT_TRIGGERS] = "Triggers",
1041         [UNIT_TRIGGERED_BY] = "TriggeredBy",
1042         [UNIT_PROPAGATES_RELOAD_TO] = "PropagatesReloadTo",
1043         [UNIT_RELOAD_PROPAGATED_FROM] = "ReloadPropagatedFrom",
1044         [UNIT_JOINS_NAMESPACE_OF] = "JoinsNamespaceOf",
1045         [UNIT_REFERENCES] = "References",
1046         [UNIT_REFERENCED_BY] = "ReferencedBy",
1047 };
1048
1049 DEFINE_STRING_TABLE_LOOKUP(unit_dependency, UnitDependency);