src/tmpfiles.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, Kay Sievers
   7
   8   systemd is free software; you can redistribute it and/or modify it
   9   under the terms of the GNU General Public License as published by
  10   the Free Software Foundation; either version 2 of the License, or
  11   (at your option) any later version.
  12
  13   systemd is distributed in the hope that it will be useful, but
  14   WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16   General Public License for more details.
  17
  18   You should have received a copy of the GNU General Public License
  19   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  20 ***/
  21
  22 #include <unistd.h>
  23 #include <fcntl.h>
  24 #include <errno.h>
  25 #include <string.h>
  26 #include <sys/stat.h>
  27 #include <limits.h>
  28 #include <dirent.h>
  29 #include <grp.h>
  30 #include <pwd.h>
  31 #include <stdio.h>
  32 #include <stdlib.h>
  33 #include <stddef.h>
  34 #include <getopt.h>
  35 #include <stdbool.h>
  36 #include <time.h>
  37 #include <sys/types.h>
  38 #include <sys/param.h>
  39 #include <glob.h>
  40 #include <fnmatch.h>
  41
  42 #include "log.h"
  43 #include "util.h"
  44 #include "strv.h"
  45 #include "label.h"
  46 #include "set.h"
  47
  48 /* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates
  49  * them in the file system. This is intended to be used to create
  50  * properly owned directories beneath /tmp, /var/tmp, /var/run and
  51  * /var/lock which are volatile and hence need to be recreated on
  52  * bootup. */
  53
  54 enum {
  55         /* These ones take file names */
  56         CREATE_FILE = 'f',
  57         TRUNCATE_FILE = 'F',
  58         CREATE_DIRECTORY = 'd',
  59         TRUNCATE_DIRECTORY = 'D',
  60
  61         /* These ones take globs */
  62         IGNORE_PATH = 'x',
  63         REMOVE_PATH = 'r',
  64         RECURSIVE_REMOVE_PATH = 'R'
  65 };
  66
  67 typedef struct Item {
  68         char type;
  69
  70         char *path;
  71         uid_t uid;
  72         gid_t gid;
  73         mode_t mode;
  74         usec_t age;
  75
  76         bool uid_set:1;
  77         bool gid_set:1;
  78         bool mode_set:1;
  79         bool age_set:1;
  80 } Item;
  81
  82 static Hashmap *items = NULL, *globs = NULL;
  83
  84 static bool arg_create = false;
  85 static bool arg_clean = false;
  86 static bool arg_remove = false;
  87
  88 #define MAX_DEPTH 256
  89
  90 static bool needs_glob(int t) {
  91         return t == IGNORE_PATH || t == REMOVE_PATH || t == RECURSIVE_REMOVE_PATH;
  92 }
  93
  94 static struct Item* find_glob(Hashmap *h, const char *match) {
  95         Item *j;
  96         Iterator i;
  97
  98         HASHMAP_FOREACH(j, h, i)
  99                 if (fnmatch(j->path, match, FNM_PATHNAME|FNM_PERIOD) == 0)
 100                         return j;
 101
 102         return NULL;
 103 }
 104
 105 static int dir_cleanup(
 106                 const char *p,
 107                 DIR *d,
 108                 const struct stat *ds,
 109                 usec_t cutoff,
 110                 dev_t rootdev,
 111                 bool mountpoint,
 112                 int maxdepth)
 113 {
 114         struct dirent *dent;
 115         struct timespec times[2];
 116         bool deleted = false;
 117         char *sub_path = NULL;
 118         int r = 0;
 119
 120         while ((dent = readdir(d))) {
 121                 struct stat s;
 122                 usec_t age;
 123
 124                 if (streq(dent->d_name, ".") ||
 125                     streq(dent->d_name, ".."))
 126                         continue;
 127
 128                 if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) {
 129
 130                         if (errno != ENOENT) {
 131                                 log_error("stat(%s/%s) failed: %m", p, dent->d_name);
 132                                 r = -errno;
 133                         }
 134
 135                         continue;
 136                 }
 137
 138                 /* Stay on the same filesystem */
 139                 if (s.st_dev != rootdev)
 140                         continue;
 141
 142                 /* Do not delete read-only files owned by root */
 143                 if (s.st_uid == 0 && !(s.st_mode & S_IWUSR))
 144                         continue;
 145
 146                 free(sub_path);
 147                 sub_path = NULL;
 148
 149                 if (asprintf(&sub_path, "%s/%s", p, dent->d_name) < 0) {
 150                         log_error("Out of memory");
 151                         r = -ENOMEM;
 152                         goto finish;
 153                 }
 154
 155                 /* Is there an item configured for this path? */
 156                 if (hashmap_get(items, sub_path))
 157                         continue;
 158
 159                 if (find_glob(globs, sub_path))
 160                         continue;
 161
 162                 if (S_ISDIR(s.st_mode)) {
 163
 164                         if (mountpoint &&
 165                             streq(dent->d_name, "lost+found") &&
 166                             s.st_uid == 0)
 167                                 continue;
 168
 169                         if (maxdepth <= 0)
 170                                 log_warning("Reached max depth on %s.", sub_path);
 171                         else {
 172                                 DIR *sub_dir;
 173                                 int q;
 174
 175                                 sub_dir = xopendirat(dirfd(d), dent->d_name, O_NOFOLLOW);
 176                                 if (sub_dir == NULL) {
 177                                         if (errno != ENOENT) {
 178                                                 log_error("opendir(%s/%s) failed: %m", p, dent->d_name);
 179                                                 r = -errno;
 180                                         }
 181
 182                                         continue;
 183                                 }
 184
 185                                 q = dir_cleanup(sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1);
 186                                 closedir(sub_dir);
 187
 188                                 if (q < 0)
 189                                         r = q;
 190                         }
 191
 192                         /* Ignore ctime, we change it when deleting */
 193                         age = MAX(timespec_load(&s.st_mtim),
 194                                   timespec_load(&s.st_atim));
 195                         if (age >= cutoff)
 196                                 continue;
 197
 198                         log_debug("rmdir '%s'\n", sub_path);
 199
 200                         if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) {
 201                                 if (errno != ENOENT && errno != ENOTEMPTY) {
 202                                         log_error("rmdir(%s): %m", sub_path);
 203                                         r = -errno;
 204                                 }
 205                         }
 206
 207                 } else {
 208                         /* Skip files for which the sticky bit is
 209                          * set. These are semantics we define, and are
 210                          * unknown elsewhere. See XDG_RUNTIME_DIR
 211                          * specification for details. */
 212                         if (s.st_mode & S_ISVTX)
 213                                 continue;
 214
 215                         if (mountpoint) {
 216                                 if (streq(dent->d_name, ".journal") &&
 217                                     s.st_uid == 0)
 218                                         continue;
 219
 220                                 if (streq(dent->d_name, "aquota.user") ||
 221                                     streq(dent->d_name, "aquota.group"))
 222                                         continue;
 223                         }
 224
 225                         age = MAX3(timespec_load(&s.st_mtim),
 226                                    timespec_load(&s.st_atim),
 227                                    timespec_load(&s.st_ctim));
 228
 229                         if (age >= cutoff)
 230                                 continue;
 231
 232                         log_debug("unlink '%s'\n", sub_path);
 233
 234                         if (unlinkat(dirfd(d), dent->d_name, 0) < 0) {
 235                                 if (errno != ENOENT) {
 236                                         log_error("unlink(%s): %m", sub_path);
 237                                         r = -errno;
 238                                 }
 239                         }
 240
 241                         deleted = true;
 242                 }
 243         }
 244
 245 finish:
 246         if (deleted) {
 247                 /* Restore original directory timestamps */
 248                 times[0] = ds->st_atim;
 249                 times[1] = ds->st_mtim;
 250
 251                 if (futimens(dirfd(d), times) < 0)
 252                         log_error("utimensat(%s): %m", p);
 253         }
 254
 255         free(sub_path);
 256
 257         return r;
 258 }
 259
 260 static int clean_item(Item *i) {
 261         DIR *d;
 262         struct stat s, ps;
 263         bool mountpoint;
 264         int r;
 265         usec_t cutoff, n;
 266
 267         assert(i);
 268
 269         if (i->type != CREATE_DIRECTORY &&
 270             i->type != TRUNCATE_DIRECTORY &&
 271             i->type != IGNORE_PATH)
 272                 return 0;
 273
 274         if (!i->age_set || i->age <= 0)
 275                 return 0;
 276
 277         n = now(CLOCK_REALTIME);
 278         if (n < i->age)
 279                 return 0;
 280
 281         cutoff = n - i->age;
 282
 283         d = opendir(i->path);
 284         if (!d) {
 285                 if (errno == ENOENT)
 286                         return 0;
 287
 288                 log_error("Failed to open directory %s: %m", i->path);
 289                 return -errno;
 290         }
 291
 292         if (fstat(dirfd(d), &s) < 0) {
 293                 log_error("stat(%s) failed: %m", i->path);
 294                 r = -errno;
 295                 goto finish;
 296         }
 297
 298         if (!S_ISDIR(s.st_mode)) {
 299                 log_error("%s is not a directory.", i->path);
 300                 r = -ENOTDIR;
 301                 goto finish;
 302         }
 303
 304         if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0) {
 305                 log_error("stat(%s/..) failed: %m", i->path);
 306                 r = -errno;
 307                 goto finish;
 308         }
 309
 310         mountpoint = s.st_dev != ps.st_dev ||
 311                      (s.st_dev == ps.st_dev && s.st_ino == ps.st_ino);
 312
 313         r = dir_cleanup(i->path, d, &s, cutoff, s.st_dev, mountpoint, MAX_DEPTH);
 314
 315 finish:
 316         if (d)
 317                 closedir(d);
 318
 319         return r;
 320 }
 321
 322 static int create_item(Item *i) {
 323         int fd = -1, r;
 324         mode_t u;
 325         struct stat st;
 326
 327         assert(i);
 328
 329         switch (i->type) {
 330
 331         case IGNORE_PATH:
 332         case REMOVE_PATH:
 333         case RECURSIVE_REMOVE_PATH:
 334                 return 0;
 335
 336         case CREATE_FILE:
 337         case TRUNCATE_FILE:
 338
 339                 u = umask(0);
 340                 fd = open(i->path, O_CREAT|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY|O_NOFOLLOW|
 341                           (i->type == TRUNCATE_FILE ? O_TRUNC : 0), i->mode);
 342                 umask(u);
 343
 344                 if (fd < 0) {
 345                         log_error("Failed to create file %s: %m", i->path);
 346                         r = -errno;
 347                         goto finish;
 348                 }
 349
 350                 if (fstat(fd, &st) < 0) {
 351                         log_error("stat(%s) failed: %m", i->path);
 352                         r = -errno;
 353                         goto finish;
 354                 }
 355
 356                 if (!S_ISREG(st.st_mode)) {
 357                         log_error("%s is not a file.", i->path);
 358                         r = -EEXIST;
 359                         goto finish;
 360                 }
 361
 362                 if (i->mode_set)
 363                         if (fchmod(fd, i->mode) < 0) {
 364                                 log_error("chmod(%s) failed: %m", i->path);
 365                                 r = -errno;
 366                                 goto finish;
 367                         }
 368
 369                 if (i->uid_set || i->gid_set)
 370                         if (fchown(fd,
 371                                    i->uid_set ? i->uid : (uid_t) -1,
 372                                    i->gid_set ? i->gid : (gid_t) -1) < 0) {
 373                                 log_error("chown(%s) failed: %m", i->path);
 374                                 r = -errno;
 375                                 goto finish;
 376                         }
 377
 378                 break;
 379
 380         case TRUNCATE_DIRECTORY:
 381         case CREATE_DIRECTORY:
 382
 383                 u = umask(0);
 384                 r = mkdir(i->path, i->mode);
 385                 umask(u);
 386
 387                 if (r < 0 && errno != EEXIST) {
 388                         log_error("Failed to create directory %s: %m", i->path);
 389                         r = -errno;
 390                         goto finish;
 391                 }
 392
 393                 if (stat(i->path, &st) < 0) {
 394                         log_error("stat(%s) failed: %m", i->path);
 395                         r = -errno;
 396                         goto finish;
 397                 }
 398
 399                 if (!S_ISDIR(st.st_mode)) {
 400                         log_error("%s is not a directory.", i->path);
 401                         r = -EEXIST;
 402                         goto finish;
 403                 }
 404
 405                 if (i->mode_set)
 406                         if (chmod(i->path, i->mode) < 0) {
 407                                 log_error("chmod(%s) failed: %m", i->path);
 408                                 r = -errno;
 409                                 goto finish;
 410                         }
 411
 412                 if (i->uid_set || i->gid_set)
 413                         if (chown(i->path,
 414                                   i->uid_set ? i->uid : (uid_t) -1,
 415                                   i->gid_set ? i->gid : (gid_t) -1) < 0) {
 416
 417                                 log_error("chown(%s) failed: %m", i->path);
 418                                 r = -errno;
 419                                 goto finish;
 420                         }
 421
 422                 break;
 423         }
 424
 425         if ((r = label_fix(i->path)) < 0)
 426                 goto finish;
 427
 428         log_debug("%s created successfully.", i->path);
 429
 430 finish:
 431         if (fd >= 0)
 432                 close_nointr_nofail(fd);
 433
 434         return r;
 435 }
 436
 437 static int remove_item(Item *i, const char *instance) {
 438         int r;
 439
 440         assert(i);
 441
 442         switch (i->type) {
 443
 444         case CREATE_FILE:
 445         case TRUNCATE_FILE:
 446         case CREATE_DIRECTORY:
 447         case IGNORE_PATH:
 448                 break;
 449
 450         case REMOVE_PATH:
 451                 if (remove(instance) < 0 && errno != ENOENT) {
 452                         log_error("remove(%s): %m", instance);
 453                         return -errno;
 454                 }
 455
 456                 break;
 457
 458         case TRUNCATE_DIRECTORY:
 459         case RECURSIVE_REMOVE_PATH:
 460                 if ((r = rm_rf(instance, false, i->type == RECURSIVE_REMOVE_PATH)) < 0 &&
 461                     r != -ENOENT) {
 462                         log_error("rm_rf(%s): %s", instance, strerror(-r));
 463                         return r;
 464                 }
 465
 466                 break;
 467         }
 468
 469         return 0;
 470 }
 471
 472 static int remove_item_glob(Item *i) {
 473         assert(i);
 474
 475         switch (i->type) {
 476
 477         case CREATE_FILE:
 478         case TRUNCATE_FILE:
 479         case CREATE_DIRECTORY:
 480         case IGNORE_PATH:
 481                 break;
 482
 483         case REMOVE_PATH:
 484         case TRUNCATE_DIRECTORY:
 485         case RECURSIVE_REMOVE_PATH: {
 486                 int r = 0, k;
 487                 glob_t g;
 488                 char **fn;
 489
 490                 zero(g);
 491
 492                 errno = 0;
 493                 if ((k = glob(i->path, GLOB_NOSORT|GLOB_BRACE, NULL, &g)) != 0) {
 494
 495                         if (k != GLOB_NOMATCH) {
 496                                 if (errno != 0)
 497                                         errno = EIO;
 498
 499                                 log_error("glob(%s) failed: %m", i->path);
 500                                 return -errno;
 501                         }
 502                 }
 503
 504                 STRV_FOREACH(fn, g.gl_pathv)
 505                         if ((k = remove_item(i, *fn)) < 0)
 506                                 r = k;
 507
 508                 globfree(&g);
 509                 return r;
 510         }
 511         }
 512
 513         return 0;
 514 }
 515
 516 static int process_item(Item *i) {
 517         int r, q, p;
 518
 519         assert(i);
 520
 521         r = arg_create ? create_item(i) : 0;
 522         q = arg_remove ? remove_item_glob(i) : 0;
 523         p = arg_clean ? clean_item(i) : 0;
 524
 525         if (r < 0)
 526                 return r;
 527
 528         if (q < 0)
 529                 return q;
 530
 531         return p;
 532 }
 533
 534 static void item_free(Item *i) {
 535         assert(i);
 536
 537         free(i->path);
 538         free(i);
 539 }
 540
 541 static int parse_line(const char *fname, unsigned line, const char *buffer, const char *prefix) {
 542         Item *i;
 543         char *mode = NULL, *user = NULL, *group = NULL, *age = NULL;
 544         int r;
 545
 546         assert(fname);
 547         assert(line >= 1);
 548         assert(buffer);
 549
 550         if (!(i = new0(Item, 1))) {
 551                 log_error("Out of memory");
 552                 return -ENOMEM;
 553         }
 554
 555         if (sscanf(buffer,
 556                    "%c "
 557                    "%ms "
 558                    "%ms "
 559                    "%ms "
 560                    "%ms "
 561                    "%ms",
 562                    &i->type,
 563                    &i->path,
 564                    &mode,
 565                    &user,
 566                    &group,
 567                    &age) < 2) {
 568                 log_error("[%s:%u] Syntax error.", fname, line);
 569                 r = -EIO;
 570                 goto finish;
 571         }
 572
 573         if (i->type != CREATE_FILE &&
 574             i->type != TRUNCATE_FILE &&
 575             i->type != CREATE_DIRECTORY &&
 576             i->type != TRUNCATE_DIRECTORY &&
 577             i->type != IGNORE_PATH &&
 578             i->type != REMOVE_PATH &&
 579             i->type != RECURSIVE_REMOVE_PATH) {
 580                 log_error("[%s:%u] Unknown file type '%c'.", fname, line, i->type);
 581                 r = -EBADMSG;
 582                 goto finish;
 583         }
 584
 585         if (!path_is_absolute(i->path)) {
 586                 log_error("[%s:%u] Path '%s' not absolute.", fname, line, i->path);
 587                 r = -EBADMSG;
 588                 goto finish;
 589         }
 590
 591         path_kill_slashes(i->path);
 592
 593         if (prefix && !path_startswith(i->path, prefix)) {
 594                 r = 0;
 595                 goto finish;
 596         }
 597
 598         if (user && !streq(user, "-")) {
 599                 unsigned long lu;
 600                 struct passwd *p;
 601
 602                 if (streq(user, "root") || streq(user, "0"))
 603                         i->uid = 0;
 604                 else if (safe_atolu(user, &lu) >= 0)
 605                         i->uid = (uid_t) lu;
 606                 else if ((p = getpwnam(user)))
 607                         i->uid = p->pw_uid;
 608                 else {
 609                         log_error("[%s:%u] Unknown user '%s'.", fname, line, user);
 610                         r = -ENOENT;
 611                         goto finish;
 612                 }
 613
 614                 i->uid_set = true;
 615         }
 616
 617         if (group && !streq(group, "-")) {
 618                 unsigned long lu;
 619                 struct group *g;
 620
 621                 if (streq(group, "root") || streq(group, "0"))
 622                         i->gid = 0;
 623                 else if (safe_atolu(group, &lu) >= 0)
 624                         i->gid = (gid_t) lu;
 625                 else if ((g = getgrnam(group)))
 626                         i->gid = g->gr_gid;
 627                 else {
 628                         log_error("[%s:%u] Unknown group '%s'.", fname, line, group);
 629                         r = -ENOENT;
 630                         goto finish;
 631                 }
 632
 633                 i->gid_set = true;
 634         }
 635
 636         if (mode && !streq(mode, "-")) {
 637                 unsigned m;
 638
 639                 if (sscanf(mode, "%o", &m) != 1) {
 640                         log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode);
 641                         r = -ENOENT;
 642                         goto finish;
 643                 }
 644
 645                 i->mode = m;
 646                 i->mode_set = true;
 647         } else
 648                 i->mode = i->type == CREATE_DIRECTORY ? 0755 : 0644;
 649
 650         if (age && !streq(age, "-")) {
 651                 if (parse_usec(age, &i->age) < 0) {
 652                         log_error("[%s:%u] Invalid age '%s'.", fname, line, age);
 653                         r = -EBADMSG;
 654                         goto finish;
 655                 }
 656
 657                 i->age_set = true;
 658         }
 659
 660         if ((r = hashmap_put(needs_glob(i->type) ? globs : items, i->path, i)) < 0) {
 661                 if (r == -EEXIST) {
 662                         log_warning("Two or more conflicting lines for %s configured, ignoring.", i->path);
 663                         r = 0;
 664                         goto finish;
 665                 }
 666
 667                 log_error("Failed to insert item %s: %s", i->path, strerror(-r));
 668                 goto finish;
 669         }
 670
 671         i = NULL;
 672         r = 0;
 673
 674 finish:
 675         free(user);
 676         free(group);
 677         free(mode);
 678         free(age);
 679
 680         if (i)
 681                 item_free(i);
 682
 683         return r;
 684 }
 685
 686 static int scandir_filter(const struct dirent *d) {
 687         assert(d);
 688
 689         if (ignore_file(d->d_name))
 690                 return 0;
 691
 692         if (d->d_type != DT_REG &&
 693             d->d_type != DT_LNK)
 694                 return 0;
 695
 696         return endswith(d->d_name, ".conf");
 697 }
 698
 699 static int help(void) {
 700
 701         printf("%s [OPTIONS...]\n\n"
 702                "Create and clean up temporary directories.\n\n"
 703                "  -h --help             Show this help\n"
 704                "     --create           Create marked files/directories\n"
 705                "     --clean            Clean up marked directories\n"
 706                "     --remove           Remove marked files/directories\n",
 707                program_invocation_short_name);
 708
 709         return 0;
 710 }
 711
 712 static int parse_argv(int argc, char *argv[]) {
 713
 714         enum {
 715                 ARG_CREATE,
 716                 ARG_CLEAN,
 717                 ARG_REMOVE
 718         };
 719
 720         static const struct option options[] = {
 721                 { "help",      no_argument,       NULL, 'h'           },
 722                 { "create",    no_argument,       NULL, ARG_CREATE    },
 723                 { "clean",     no_argument,       NULL, ARG_CLEAN     },
 724                 { "remove",    no_argument,       NULL, ARG_REMOVE    },
 725                 { NULL,        0,                 NULL, 0             }
 726         };
 727
 728         int c;
 729
 730         assert(argc >= 0);
 731         assert(argv);
 732
 733         while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) {
 734
 735                 switch (c) {
 736
 737                 case 'h':
 738                         help();
 739                         return 0;
 740
 741                 case ARG_CREATE:
 742                         arg_create = true;
 743                         break;
 744
 745                 case ARG_CLEAN:
 746                         arg_clean = true;
 747                         break;
 748
 749                 case ARG_REMOVE:
 750                         arg_remove = true;
 751                         break;
 752
 753                 case '?':
 754                         return -EINVAL;
 755
 756                 default:
 757                         log_error("Unknown option code %c", c);
 758                         return -EINVAL;
 759                 }
 760         }
 761
 762         if (!arg_clean && !arg_create && !arg_remove) {
 763                 help();
 764                 return -EINVAL;
 765         }
 766
 767         return 1;
 768 }
 769
 770 int main(int argc, char *argv[]) {
 771         struct dirent **de = NULL;
 772         int r, n, j;
 773         const char *prefix = NULL;
 774         Item *i;
 775         Iterator iterator;
 776
 777         if ((r = parse_argv(argc, argv)) <= 0)
 778                 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
 779
 780         if (optind < argc)
 781                 prefix = argv[optind];
 782         else
 783                 prefix = "/";
 784
 785         log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
 786         log_parse_environment();
 787         log_open();
 788
 789         label_init();
 790
 791         items = hashmap_new(string_hash_func, string_compare_func);
 792         globs = hashmap_new(string_hash_func, string_compare_func);
 793
 794         if (!items || !globs) {
 795                 log_error("Out of memory");
 796                 r = EXIT_FAILURE;
 797                 goto finish;
 798         }
 799
 800         if ((n = scandir("/etc/tmpfiles.d/", &de, scandir_filter, alphasort)) < 0) {
 801
 802                 if (errno == ENOENT)
 803                         r = EXIT_SUCCESS;
 804                 else {
 805                         log_error("Failed to enumerate /etc/tmpfiles.d/ files: %m");
 806                         r = EXIT_FAILURE;
 807                 }
 808
 809                 goto finish;
 810         }
 811
 812         r = EXIT_SUCCESS;
 813
 814         for (j = 0; j < n; j++) {
 815                 int k;
 816                 char *fn;
 817                 FILE *f;
 818                 unsigned v;
 819
 820                 k = asprintf(&fn, "/etc/tmpfiles.d/%s", de[j]->d_name);
 821                 free(de[j]);
 822
 823                 if (k < 0) {
 824                         log_error("Failed to allocate file name.");
 825                         r = EXIT_FAILURE;
 826                         continue;
 827                 }
 828
 829                 if (!(f = fopen(fn, "re"))) {
 830
 831                         if (errno != ENOENT) {
 832                                 log_error("Failed to open %s: %m", fn);
 833                                 r = EXIT_FAILURE;
 834                         }
 835
 836                         free(fn);
 837                         continue;
 838                 }
 839
 840                 v = 0;
 841                 for (;;) {
 842                         char line[LINE_MAX], *l;
 843
 844                         if (!(fgets(line, sizeof(line), f)))
 845                                 break;
 846
 847                         v++;
 848
 849                         l = strstrip(line);
 850                         if (*l == '#' || *l == 0)
 851                                 continue;
 852
 853                         if (parse_line(fn, v, l, prefix) < 0)
 854                                 r = EXIT_FAILURE;
 855                 }
 856
 857                 if (ferror(f)) {
 858                         r = EXIT_FAILURE;
 859                         log_error("Failed to read from file %s: %m", fn);
 860                 }
 861
 862                 free(fn);
 863
 864                 fclose(f);
 865         }
 866
 867         free(de);
 868
 869         HASHMAP_FOREACH(i, globs, iterator)
 870                 if (process_item(i) < 0)
 871                         r = EXIT_FAILURE;
 872
 873         HASHMAP_FOREACH(i, items, iterator)
 874                 if (process_item(i) < 0)
 875                         r = EXIT_FAILURE;
 876
 877 finish:
 878         while ((i = hashmap_steal_first(items)))
 879                 item_free(i);
 880
 881         hashmap_free(items);
 882         hashmap_free(globs);
 883
 884         label_finish();
 885
 886         return r;
 887 }