src/core/dbus-execute.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 <sys/prctl.h>
  21
  22 #ifdef HAVE_SECCOMP
  23 #include <seccomp.h>
  24 #endif
  25
  26 #include "af-list.h"
  27 #include "alloc-util.h"
  28 #include "bus-util.h"
  29 #include "capability-util.h"
  30 #include "dbus-execute.h"
  31 #include "env-util.h"
  32 #include "execute.h"
  33 #include "fd-util.h"
  34 #include "fileio.h"
  35 #include "ioprio.h"
  36 #include "missing.h"
  37 #include "mount-util.h"
  38 #include "namespace.h"
  39 #include "parse-util.h"
  40 #include "path-util.h"
  41 #include "process-util.h"
  42 #include "rlimit-util.h"
  43 #ifdef HAVE_SECCOMP
  44 #include "seccomp-util.h"
  45 #endif
  46 #include "strv.h"
  47 #include "syslog-util.h"
  48 #include "user-util.h"
  49 #include "utf8.h"
  50
  51 BUS_DEFINE_PROPERTY_GET_ENUM(bus_property_get_exec_output, exec_output, ExecOutput);
  52
  53 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_exec_input, exec_input, ExecInput);
  54
  55 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_exec_utmp_mode, exec_utmp_mode, ExecUtmpMode);
  56
  57 static BUS_DEFINE_PROPERTY_GET_ENUM(bus_property_get_protect_home, protect_home, ProtectHome);
  58 static BUS_DEFINE_PROPERTY_GET_ENUM(bus_property_get_protect_system, protect_system, ProtectSystem);
  59
  60 static int property_get_environment_files(
  61                 sd_bus *bus,
  62                 const char *path,
  63                 const char *interface,
  64                 const char *property,
  65                 sd_bus_message *reply,
  66                 void *userdata,
  67                 sd_bus_error *error) {
  68
  69         ExecContext *c = userdata;
  70         char **j;
  71         int r;
  72
  73         assert(bus);
  74         assert(reply);
  75         assert(c);
  76
  77         r = sd_bus_message_open_container(reply, 'a', "(sb)");
  78         if (r < 0)
  79                 return r;
  80
  81         STRV_FOREACH(j, c->environment_files) {
  82                 const char *fn = *j;
  83
  84                 r = sd_bus_message_append(reply, "(sb)", fn[0] == '-' ? fn + 1 : fn, fn[0] == '-');
  85                 if (r < 0)
  86                         return r;
  87         }
  88
  89         return sd_bus_message_close_container(reply);
  90 }
  91
  92 static int property_get_oom_score_adjust(
  93                 sd_bus *bus,
  94                 const char *path,
  95                 const char *interface,
  96                 const char *property,
  97                 sd_bus_message *reply,
  98                 void *userdata,
  99                 sd_bus_error *error) {
 100
 101
 102         ExecContext *c = userdata;
 103         int32_t n;
 104
 105         assert(bus);
 106         assert(reply);
 107         assert(c);
 108
 109         if (c->oom_score_adjust_set)
 110                 n = c->oom_score_adjust;
 111         else {
 112                 _cleanup_free_ char *t = NULL;
 113
 114                 n = 0;
 115                 if (read_one_line_file("/proc/self/oom_score_adj", &t) >= 0)
 116                         safe_atoi32(t, &n);
 117         }
 118
 119         return sd_bus_message_append(reply, "i", n);
 120 }
 121
 122 static int property_get_nice(
 123                 sd_bus *bus,
 124                 const char *path,
 125                 const char *interface,
 126                 const char *property,
 127                 sd_bus_message *reply,
 128                 void *userdata,
 129                 sd_bus_error *error) {
 130
 131
 132         ExecContext *c = userdata;
 133         int32_t n;
 134
 135         assert(bus);
 136         assert(reply);
 137         assert(c);
 138
 139         if (c->nice_set)
 140                 n = c->nice;
 141         else {
 142                 errno = 0;
 143                 n = getpriority(PRIO_PROCESS, 0);
 144                 if (errno > 0)
 145                         n = 0;
 146         }
 147
 148         return sd_bus_message_append(reply, "i", n);
 149 }
 150
 151 static int property_get_ioprio(
 152                 sd_bus *bus,
 153                 const char *path,
 154                 const char *interface,
 155                 const char *property,
 156                 sd_bus_message *reply,
 157                 void *userdata,
 158                 sd_bus_error *error) {
 159
 160
 161         ExecContext *c = userdata;
 162         int32_t n;
 163
 164         assert(bus);
 165         assert(reply);
 166         assert(c);
 167
 168         if (c->ioprio_set)
 169                 n = c->ioprio;
 170         else {
 171                 n = ioprio_get(IOPRIO_WHO_PROCESS, 0);
 172                 if (n < 0)
 173                         n = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 4);
 174         }
 175
 176         return sd_bus_message_append(reply, "i", n);
 177 }
 178
 179 static int property_get_cpu_sched_policy(
 180                 sd_bus *bus,
 181                 const char *path,
 182                 const char *interface,
 183                 const char *property,
 184                 sd_bus_message *reply,
 185                 void *userdata,
 186                 sd_bus_error *error) {
 187
 188         ExecContext *c = userdata;
 189         int32_t n;
 190
 191         assert(bus);
 192         assert(reply);
 193         assert(c);
 194
 195         if (c->cpu_sched_set)
 196                 n = c->cpu_sched_policy;
 197         else {
 198                 n = sched_getscheduler(0);
 199                 if (n < 0)
 200                         n = SCHED_OTHER;
 201         }
 202
 203         return sd_bus_message_append(reply, "i", n);
 204 }
 205
 206 static int property_get_cpu_sched_priority(
 207                 sd_bus *bus,
 208                 const char *path,
 209                 const char *interface,
 210                 const char *property,
 211                 sd_bus_message *reply,
 212                 void *userdata,
 213                 sd_bus_error *error) {
 214
 215         ExecContext *c = userdata;
 216         int32_t n;
 217
 218         assert(bus);
 219         assert(reply);
 220         assert(c);
 221
 222         if (c->cpu_sched_set)
 223                 n = c->cpu_sched_priority;
 224         else {
 225                 struct sched_param p = {};
 226
 227                 if (sched_getparam(0, &p) >= 0)
 228                         n = p.sched_priority;
 229                 else
 230                         n = 0;
 231         }
 232
 233         return sd_bus_message_append(reply, "i", n);
 234 }
 235
 236 static int property_get_cpu_affinity(
 237                 sd_bus *bus,
 238                 const char *path,
 239                 const char *interface,
 240                 const char *property,
 241                 sd_bus_message *reply,
 242                 void *userdata,
 243                 sd_bus_error *error) {
 244
 245         ExecContext *c = userdata;
 246
 247         assert(bus);
 248         assert(reply);
 249         assert(c);
 250
 251         if (c->cpuset)
 252                 return sd_bus_message_append_array(reply, 'y', c->cpuset, CPU_ALLOC_SIZE(c->cpuset_ncpus));
 253         else
 254                 return sd_bus_message_append_array(reply, 'y', NULL, 0);
 255 }
 256
 257 static int property_get_timer_slack_nsec(
 258                 sd_bus *bus,
 259                 const char *path,
 260                 const char *interface,
 261                 const char *property,
 262                 sd_bus_message *reply,
 263                 void *userdata,
 264                 sd_bus_error *error) {
 265
 266         ExecContext *c = userdata;
 267         uint64_t u;
 268
 269         assert(bus);
 270         assert(reply);
 271         assert(c);
 272
 273         if (c->timer_slack_nsec != NSEC_INFINITY)
 274                 u = (uint64_t) c->timer_slack_nsec;
 275         else
 276                 u = (uint64_t) prctl(PR_GET_TIMERSLACK);
 277
 278         return sd_bus_message_append(reply, "t", u);
 279 }
 280
 281 static int property_get_capability_bounding_set(
 282                 sd_bus *bus,
 283                 const char *path,
 284                 const char *interface,
 285                 const char *property,
 286                 sd_bus_message *reply,
 287                 void *userdata,
 288                 sd_bus_error *error) {
 289
 290         ExecContext *c = userdata;
 291
 292         assert(bus);
 293         assert(reply);
 294         assert(c);
 295
 296         return sd_bus_message_append(reply, "t", c->capability_bounding_set);
 297 }
 298
 299 static int property_get_ambient_capabilities(
 300                 sd_bus *bus,
 301                 const char *path,
 302                 const char *interface,
 303                 const char *property,
 304                 sd_bus_message *reply,
 305                 void *userdata,
 306                 sd_bus_error *error) {
 307
 308         ExecContext *c = userdata;
 309
 310         assert(bus);
 311         assert(reply);
 312         assert(c);
 313
 314         return sd_bus_message_append(reply, "t", c->capability_ambient_set);
 315 }
 316
 317 static int property_get_empty_string(
 318                 sd_bus *bus,
 319                 const char *path,
 320                 const char *interface,
 321                 const char *property,
 322                 sd_bus_message *reply,
 323                 void *userdata,
 324                 sd_bus_error *error) {
 325
 326         assert(bus);
 327         assert(reply);
 328
 329         return sd_bus_message_append(reply, "s", "");
 330 }
 331
 332 static int property_get_syscall_filter(
 333                 sd_bus *bus,
 334                 const char *path,
 335                 const char *interface,
 336                 const char *property,
 337                 sd_bus_message *reply,
 338                 void *userdata,
 339                 sd_bus_error *error) {
 340
 341         ExecContext *c = userdata;
 342         _cleanup_strv_free_ char **l = NULL;
 343         int r;
 344
 345 #ifdef HAVE_SECCOMP
 346         Iterator i;
 347         void *id;
 348 #endif
 349
 350         assert(bus);
 351         assert(reply);
 352         assert(c);
 353
 354         r = sd_bus_message_open_container(reply, 'r', "bas");
 355         if (r < 0)
 356                 return r;
 357
 358         r = sd_bus_message_append(reply, "b", c->syscall_whitelist);
 359         if (r < 0)
 360                 return r;
 361
 362 #ifdef HAVE_SECCOMP
 363         SET_FOREACH(id, c->syscall_filter, i) {
 364                 char *name;
 365
 366                 name = seccomp_syscall_resolve_num_arch(SCMP_ARCH_NATIVE, PTR_TO_INT(id) - 1);
 367                 if (!name)
 368                         continue;
 369
 370                 r = strv_consume(&l, name);
 371                 if (r < 0)
 372                         return r;
 373         }
 374 #endif
 375
 376         strv_sort(l);
 377
 378         r = sd_bus_message_append_strv(reply, l);
 379         if (r < 0)
 380                 return r;
 381
 382         return sd_bus_message_close_container(reply);
 383 }
 384
 385 static int property_get_syscall_archs(
 386                 sd_bus *bus,
 387                 const char *path,
 388                 const char *interface,
 389                 const char *property,
 390                 sd_bus_message *reply,
 391                 void *userdata,
 392                 sd_bus_error *error) {
 393
 394         ExecContext *c = userdata;
 395         _cleanup_strv_free_ char **l = NULL;
 396         int r;
 397
 398 #ifdef HAVE_SECCOMP
 399         Iterator i;
 400         void *id;
 401 #endif
 402
 403         assert(bus);
 404         assert(reply);
 405         assert(c);
 406
 407 #ifdef HAVE_SECCOMP
 408         SET_FOREACH(id, c->syscall_archs, i) {
 409                 const char *name;
 410
 411                 name = seccomp_arch_to_string(PTR_TO_UINT32(id) - 1);
 412                 if (!name)
 413                         continue;
 414
 415                 r = strv_extend(&l, name);
 416                 if (r < 0)
 417                         return -ENOMEM;
 418         }
 419 #endif
 420
 421         strv_sort(l);
 422
 423         r = sd_bus_message_append_strv(reply, l);
 424         if (r < 0)
 425                 return r;
 426
 427         return 0;
 428 }
 429
 430 static int property_get_syscall_errno(
 431                 sd_bus *bus,
 432                 const char *path,
 433                 const char *interface,
 434                 const char *property,
 435                 sd_bus_message *reply,
 436                 void *userdata,
 437                 sd_bus_error *error) {
 438
 439         ExecContext *c = userdata;
 440
 441         assert(bus);
 442         assert(reply);
 443         assert(c);
 444
 445         return sd_bus_message_append(reply, "i", (int32_t) c->syscall_errno);
 446 }
 447
 448 static int property_get_selinux_context(
 449                 sd_bus *bus,
 450                 const char *path,
 451                 const char *interface,
 452                 const char *property,
 453                 sd_bus_message *reply,
 454                 void *userdata,
 455                 sd_bus_error *error) {
 456
 457         ExecContext *c = userdata;
 458
 459         assert(bus);
 460         assert(reply);
 461         assert(c);
 462
 463         return sd_bus_message_append(reply, "(bs)", c->selinux_context_ignore, c->selinux_context);
 464 }
 465
 466 static int property_get_apparmor_profile(
 467                 sd_bus *bus,
 468                 const char *path,
 469                 const char *interface,
 470                 const char *property,
 471                 sd_bus_message *reply,
 472                 void *userdata,
 473                 sd_bus_error *error) {
 474
 475         ExecContext *c = userdata;
 476
 477         assert(bus);
 478         assert(reply);
 479         assert(c);
 480
 481         return sd_bus_message_append(reply, "(bs)", c->apparmor_profile_ignore, c->apparmor_profile);
 482 }
 483
 484 static int property_get_smack_process_label(
 485                 sd_bus *bus,
 486                 const char *path,
 487                 const char *interface,
 488                 const char *property,
 489                 sd_bus_message *reply,
 490                 void *userdata,
 491                 sd_bus_error *error) {
 492
 493         ExecContext *c = userdata;
 494
 495         assert(bus);
 496         assert(reply);
 497         assert(c);
 498
 499         return sd_bus_message_append(reply, "(bs)", c->smack_process_label_ignore, c->smack_process_label);
 500 }
 501
 502 static int property_get_personality(
 503                 sd_bus *bus,
 504                 const char *path,
 505                 const char *interface,
 506                 const char *property,
 507                 sd_bus_message *reply,
 508                 void *userdata,
 509                 sd_bus_error *error) {
 510
 511         ExecContext *c = userdata;
 512
 513         assert(bus);
 514         assert(reply);
 515         assert(c);
 516
 517         return sd_bus_message_append(reply, "s", personality_to_string(c->personality));
 518 }
 519
 520 static int property_get_address_families(
 521                 sd_bus *bus,
 522                 const char *path,
 523                 const char *interface,
 524                 const char *property,
 525                 sd_bus_message *reply,
 526                 void *userdata,
 527                 sd_bus_error *error) {
 528
 529         ExecContext *c = userdata;
 530         _cleanup_strv_free_ char **l = NULL;
 531         Iterator i;
 532         void *af;
 533         int r;
 534
 535         assert(bus);
 536         assert(reply);
 537         assert(c);
 538
 539         r = sd_bus_message_open_container(reply, 'r', "bas");
 540         if (r < 0)
 541                 return r;
 542
 543         r = sd_bus_message_append(reply, "b", c->address_families_whitelist);
 544         if (r < 0)
 545                 return r;
 546
 547         SET_FOREACH(af, c->address_families, i) {
 548                 const char *name;
 549
 550                 name = af_to_name(PTR_TO_INT(af));
 551                 if (!name)
 552                         continue;
 553
 554                 r = strv_extend(&l, name);
 555                 if (r < 0)
 556                         return -ENOMEM;
 557         }
 558
 559         strv_sort(l);
 560
 561         r = sd_bus_message_append_strv(reply, l);
 562         if (r < 0)
 563                 return r;
 564
 565         return sd_bus_message_close_container(reply);
 566 }
 567
 568 static int property_get_working_directory(
 569                 sd_bus *bus,
 570                 const char *path,
 571                 const char *interface,
 572                 const char *property,
 573                 sd_bus_message *reply,
 574                 void *userdata,
 575                 sd_bus_error *error) {
 576
 577         ExecContext *c = userdata;
 578         const char *wd;
 579
 580         assert(bus);
 581         assert(reply);
 582         assert(c);
 583
 584         if (c->working_directory_home)
 585                 wd = "~";
 586         else
 587                 wd = c->working_directory;
 588
 589         if (c->working_directory_missing_ok)
 590                 wd = strjoina("!", wd);
 591
 592         return sd_bus_message_append(reply, "s", wd);
 593 }
 594
 595 static int property_get_syslog_level(
 596                 sd_bus *bus,
 597                 const char *path,
 598                 const char *interface,
 599                 const char *property,
 600                 sd_bus_message *reply,
 601                 void *userdata,
 602                 sd_bus_error *error) {
 603
 604         ExecContext *c = userdata;
 605
 606         assert(bus);
 607         assert(reply);
 608         assert(c);
 609
 610         return sd_bus_message_append(reply, "i", LOG_PRI(c->syslog_priority));
 611 }
 612
 613 static int property_get_syslog_facility(
 614                 sd_bus *bus,
 615                 const char *path,
 616                 const char *interface,
 617                 const char *property,
 618                 sd_bus_message *reply,
 619                 void *userdata,
 620                 sd_bus_error *error) {
 621
 622         ExecContext *c = userdata;
 623
 624         assert(bus);
 625         assert(reply);
 626         assert(c);
 627
 628         return sd_bus_message_append(reply, "i", LOG_FAC(c->syslog_priority));
 629 }
 630
 631 static int property_get_input_fdname(
 632                 sd_bus *bus,
 633                 const char *path,
 634                 const char *interface,
 635                 const char *property,
 636                 sd_bus_message *reply,
 637                 void *userdata,
 638                 sd_bus_error *error) {
 639
 640         ExecContext *c = userdata;
 641         const char *name;
 642
 643         assert(bus);
 644         assert(c);
 645         assert(property);
 646         assert(reply);
 647
 648         name = exec_context_fdname(c, STDIN_FILENO);
 649
 650         return sd_bus_message_append(reply, "s", name);
 651 }
 652
 653 static int property_get_output_fdname(
 654                 sd_bus *bus,
 655                 const char *path,
 656                 const char *interface,
 657                 const char *property,
 658                 sd_bus_message *reply,
 659                 void *userdata,
 660                 sd_bus_error *error) {
 661
 662         ExecContext *c = userdata;
 663         const char *name = NULL;
 664
 665         assert(bus);
 666         assert(c);
 667         assert(property);
 668         assert(reply);
 669
 670         if (c->std_output == EXEC_OUTPUT_NAMED_FD && streq(property, "StandardOutputFileDescriptorName"))
 671                 name = exec_context_fdname(c, STDOUT_FILENO);
 672         else if (c->std_error == EXEC_OUTPUT_NAMED_FD && streq(property, "StandardErrorFileDescriptorName"))
 673                 name = exec_context_fdname(c, STDERR_FILENO);
 674
 675         return sd_bus_message_append(reply, "s", name);
 676 }
 677
 678 static int property_get_bind_paths(
 679                 sd_bus *bus,
 680                 const char *path,
 681                 const char *interface,
 682                 const char *property,
 683                 sd_bus_message *reply,
 684                 void *userdata,
 685                 sd_bus_error *error) {
 686
 687         ExecContext *c = userdata;
 688         unsigned i;
 689         bool ro;
 690         int r;
 691
 692         assert(bus);
 693         assert(c);
 694         assert(property);
 695         assert(reply);
 696
 697         ro = !!strstr(property, "ReadOnly");
 698
 699         r = sd_bus_message_open_container(reply, 'a', "(ssbt)");
 700         if (r < 0)
 701                 return r;
 702
 703         for (i = 0; i < c->n_bind_mounts; i++) {
 704
 705                 if (ro != c->bind_mounts[i].read_only)
 706                         continue;
 707
 708                 r = sd_bus_message_append(
 709                                 reply, "(ssbt)",
 710                                 c->bind_mounts[i].source,
 711                                 c->bind_mounts[i].destination,
 712                                 c->bind_mounts[i].ignore_enoent,
 713                                 c->bind_mounts[i].recursive ? MS_REC : 0);
 714                 if (r < 0)
 715                         return r;
 716         }
 717
 718         return sd_bus_message_close_container(reply);
 719 }
 720
 721 const sd_bus_vtable bus_exec_vtable[] = {
 722         SD_BUS_VTABLE_START(0),
 723         SD_BUS_PROPERTY("Environment", "as", NULL, offsetof(ExecContext, environment), SD_BUS_VTABLE_PROPERTY_CONST),
 724         SD_BUS_PROPERTY("EnvironmentFiles", "a(sb)", property_get_environment_files, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 725         SD_BUS_PROPERTY("PassEnvironment", "as", NULL, offsetof(ExecContext, pass_environment), SD_BUS_VTABLE_PROPERTY_CONST),
 726         SD_BUS_PROPERTY("UMask", "u", bus_property_get_mode, offsetof(ExecContext, umask), SD_BUS_VTABLE_PROPERTY_CONST),
 727         SD_BUS_PROPERTY("LimitCPU", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_CPU]), SD_BUS_VTABLE_PROPERTY_CONST),
 728         SD_BUS_PROPERTY("LimitCPUSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_CPU]), SD_BUS_VTABLE_PROPERTY_CONST),
 729         SD_BUS_PROPERTY("LimitFSIZE", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_FSIZE]), SD_BUS_VTABLE_PROPERTY_CONST),
 730         SD_BUS_PROPERTY("LimitFSIZESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_FSIZE]), SD_BUS_VTABLE_PROPERTY_CONST),
 731         SD_BUS_PROPERTY("LimitDATA", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_DATA]), SD_BUS_VTABLE_PROPERTY_CONST),
 732         SD_BUS_PROPERTY("LimitDATASoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_DATA]), SD_BUS_VTABLE_PROPERTY_CONST),
 733         SD_BUS_PROPERTY("LimitSTACK", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_STACK]), SD_BUS_VTABLE_PROPERTY_CONST),
 734         SD_BUS_PROPERTY("LimitSTACKSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_STACK]), SD_BUS_VTABLE_PROPERTY_CONST),
 735         SD_BUS_PROPERTY("LimitCORE", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_CORE]), SD_BUS_VTABLE_PROPERTY_CONST),
 736         SD_BUS_PROPERTY("LimitCORESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_CORE]), SD_BUS_VTABLE_PROPERTY_CONST),
 737         SD_BUS_PROPERTY("LimitRSS", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RSS]), SD_BUS_VTABLE_PROPERTY_CONST),
 738         SD_BUS_PROPERTY("LimitRSSSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RSS]), SD_BUS_VTABLE_PROPERTY_CONST),
 739         SD_BUS_PROPERTY("LimitNOFILE", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NOFILE]), SD_BUS_VTABLE_PROPERTY_CONST),
 740         SD_BUS_PROPERTY("LimitNOFILESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NOFILE]), SD_BUS_VTABLE_PROPERTY_CONST),
 741         SD_BUS_PROPERTY("LimitAS", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_AS]), SD_BUS_VTABLE_PROPERTY_CONST),
 742         SD_BUS_PROPERTY("LimitASSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_AS]), SD_BUS_VTABLE_PROPERTY_CONST),
 743         SD_BUS_PROPERTY("LimitNPROC", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NPROC]), SD_BUS_VTABLE_PROPERTY_CONST),
 744         SD_BUS_PROPERTY("LimitNPROCSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NPROC]), SD_BUS_VTABLE_PROPERTY_CONST),
 745         SD_BUS_PROPERTY("LimitMEMLOCK", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_MEMLOCK]), SD_BUS_VTABLE_PROPERTY_CONST),
 746         SD_BUS_PROPERTY("LimitMEMLOCKSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_MEMLOCK]), SD_BUS_VTABLE_PROPERTY_CONST),
 747         SD_BUS_PROPERTY("LimitLOCKS", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_LOCKS]), SD_BUS_VTABLE_PROPERTY_CONST),
 748         SD_BUS_PROPERTY("LimitLOCKSSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_LOCKS]), SD_BUS_VTABLE_PROPERTY_CONST),
 749         SD_BUS_PROPERTY("LimitSIGPENDING", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_SIGPENDING]), SD_BUS_VTABLE_PROPERTY_CONST),
 750         SD_BUS_PROPERTY("LimitSIGPENDINGSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_SIGPENDING]), SD_BUS_VTABLE_PROPERTY_CONST),
 751         SD_BUS_PROPERTY("LimitMSGQUEUE", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_MSGQUEUE]), SD_BUS_VTABLE_PROPERTY_CONST),
 752         SD_BUS_PROPERTY("LimitMSGQUEUESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_MSGQUEUE]), SD_BUS_VTABLE_PROPERTY_CONST),
 753         SD_BUS_PROPERTY("LimitNICE", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NICE]), SD_BUS_VTABLE_PROPERTY_CONST),
 754         SD_BUS_PROPERTY("LimitNICESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NICE]), SD_BUS_VTABLE_PROPERTY_CONST),
 755         SD_BUS_PROPERTY("LimitRTPRIO", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RTPRIO]), SD_BUS_VTABLE_PROPERTY_CONST),
 756         SD_BUS_PROPERTY("LimitRTPRIOSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RTPRIO]), SD_BUS_VTABLE_PROPERTY_CONST),
 757         SD_BUS_PROPERTY("LimitRTTIME", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RTTIME]), SD_BUS_VTABLE_PROPERTY_CONST),
 758         SD_BUS_PROPERTY("LimitRTTIMESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RTTIME]), SD_BUS_VTABLE_PROPERTY_CONST),
 759         SD_BUS_PROPERTY("WorkingDirectory", "s", property_get_working_directory, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 760         SD_BUS_PROPERTY("RootDirectory", "s", NULL, offsetof(ExecContext, root_directory), SD_BUS_VTABLE_PROPERTY_CONST),
 761         SD_BUS_PROPERTY("RootImage", "s", NULL, offsetof(ExecContext, root_image), SD_BUS_VTABLE_PROPERTY_CONST),
 762         SD_BUS_PROPERTY("OOMScoreAdjust", "i", property_get_oom_score_adjust, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 763         SD_BUS_PROPERTY("Nice", "i", property_get_nice, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 764         SD_BUS_PROPERTY("IOScheduling", "i", property_get_ioprio, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 765         SD_BUS_PROPERTY("CPUSchedulingPolicy", "i", property_get_cpu_sched_policy, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 766         SD_BUS_PROPERTY("CPUSchedulingPriority", "i", property_get_cpu_sched_priority, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 767         SD_BUS_PROPERTY("CPUAffinity", "ay", property_get_cpu_affinity, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 768         SD_BUS_PROPERTY("TimerSlackNSec", "t", property_get_timer_slack_nsec, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 769         SD_BUS_PROPERTY("CPUSchedulingResetOnFork", "b", bus_property_get_bool, offsetof(ExecContext, cpu_sched_reset_on_fork), SD_BUS_VTABLE_PROPERTY_CONST),
 770         SD_BUS_PROPERTY("NonBlocking", "b", bus_property_get_bool, offsetof(ExecContext, non_blocking), SD_BUS_VTABLE_PROPERTY_CONST),
 771         SD_BUS_PROPERTY("StandardInput", "s", property_get_exec_input, offsetof(ExecContext, std_input), SD_BUS_VTABLE_PROPERTY_CONST),
 772         SD_BUS_PROPERTY("StandardInputFileDescriptorName", "s", property_get_input_fdname, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 773         SD_BUS_PROPERTY("StandardOutput", "s", bus_property_get_exec_output, offsetof(ExecContext, std_output), SD_BUS_VTABLE_PROPERTY_CONST),
 774         SD_BUS_PROPERTY("StandardOutputFileDescriptorName", "s", property_get_output_fdname, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 775         SD_BUS_PROPERTY("StandardError", "s", bus_property_get_exec_output, offsetof(ExecContext, std_error), SD_BUS_VTABLE_PROPERTY_CONST),
 776         SD_BUS_PROPERTY("StandardErrorFileDescriptorName", "s", property_get_output_fdname, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 777         SD_BUS_PROPERTY("TTYPath", "s", NULL, offsetof(ExecContext, tty_path), SD_BUS_VTABLE_PROPERTY_CONST),
 778         SD_BUS_PROPERTY("TTYReset", "b", bus_property_get_bool, offsetof(ExecContext, tty_reset), SD_BUS_VTABLE_PROPERTY_CONST),
 779         SD_BUS_PROPERTY("TTYVHangup", "b", bus_property_get_bool, offsetof(ExecContext, tty_vhangup), SD_BUS_VTABLE_PROPERTY_CONST),
 780         SD_BUS_PROPERTY("TTYVTDisallocate", "b", bus_property_get_bool, offsetof(ExecContext, tty_vt_disallocate), SD_BUS_VTABLE_PROPERTY_CONST),
 781         SD_BUS_PROPERTY("SyslogPriority", "i", bus_property_get_int, offsetof(ExecContext, syslog_priority), SD_BUS_VTABLE_PROPERTY_CONST),
 782         SD_BUS_PROPERTY("SyslogIdentifier", "s", NULL, offsetof(ExecContext, syslog_identifier), SD_BUS_VTABLE_PROPERTY_CONST),
 783         SD_BUS_PROPERTY("SyslogLevelPrefix", "b", bus_property_get_bool, offsetof(ExecContext, syslog_level_prefix), SD_BUS_VTABLE_PROPERTY_CONST),
 784         SD_BUS_PROPERTY("SyslogLevel", "i", property_get_syslog_level, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 785         SD_BUS_PROPERTY("SyslogFacility", "i", property_get_syslog_facility, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 786         SD_BUS_PROPERTY("Capabilities", "s", property_get_empty_string, 0, SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
 787         SD_BUS_PROPERTY("SecureBits", "i", bus_property_get_int, offsetof(ExecContext, secure_bits), SD_BUS_VTABLE_PROPERTY_CONST),
 788         SD_BUS_PROPERTY("CapabilityBoundingSet", "t", property_get_capability_bounding_set, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 789         SD_BUS_PROPERTY("AmbientCapabilities", "t", property_get_ambient_capabilities, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 790         SD_BUS_PROPERTY("User", "s", NULL, offsetof(ExecContext, user), SD_BUS_VTABLE_PROPERTY_CONST),
 791         SD_BUS_PROPERTY("Group", "s", NULL, offsetof(ExecContext, group), SD_BUS_VTABLE_PROPERTY_CONST),
 792         SD_BUS_PROPERTY("DynamicUser", "b", bus_property_get_bool, offsetof(ExecContext, dynamic_user), SD_BUS_VTABLE_PROPERTY_CONST),
 793         SD_BUS_PROPERTY("RemoveIPC", "b", bus_property_get_bool, offsetof(ExecContext, remove_ipc), SD_BUS_VTABLE_PROPERTY_CONST),
 794         SD_BUS_PROPERTY("SupplementaryGroups", "as", NULL, offsetof(ExecContext, supplementary_groups), SD_BUS_VTABLE_PROPERTY_CONST),
 795         SD_BUS_PROPERTY("PAMName", "s", NULL, offsetof(ExecContext, pam_name), SD_BUS_VTABLE_PROPERTY_CONST),
 796         SD_BUS_PROPERTY("ReadWriteDirectories", "as", NULL, offsetof(ExecContext, read_write_paths), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
 797         SD_BUS_PROPERTY("ReadOnlyDirectories", "as", NULL, offsetof(ExecContext, read_only_paths), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
 798         SD_BUS_PROPERTY("InaccessibleDirectories", "as", NULL, offsetof(ExecContext, inaccessible_paths), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
 799         SD_BUS_PROPERTY("ReadWritePaths", "as", NULL, offsetof(ExecContext, read_write_paths), SD_BUS_VTABLE_PROPERTY_CONST),
 800         SD_BUS_PROPERTY("ReadOnlyPaths", "as", NULL, offsetof(ExecContext, read_only_paths), SD_BUS_VTABLE_PROPERTY_CONST),
 801         SD_BUS_PROPERTY("InaccessiblePaths", "as", NULL, offsetof(ExecContext, inaccessible_paths), SD_BUS_VTABLE_PROPERTY_CONST),
 802         SD_BUS_PROPERTY("MountFlags", "t", bus_property_get_ulong, offsetof(ExecContext, mount_flags), SD_BUS_VTABLE_PROPERTY_CONST),
 803         SD_BUS_PROPERTY("PrivateTmp", "b", bus_property_get_bool, offsetof(ExecContext, private_tmp), SD_BUS_VTABLE_PROPERTY_CONST),
 804         SD_BUS_PROPERTY("PrivateDevices", "b", bus_property_get_bool, offsetof(ExecContext, private_devices), SD_BUS_VTABLE_PROPERTY_CONST),
 805         SD_BUS_PROPERTY("ProtectKernelTunables", "b", bus_property_get_bool, offsetof(ExecContext, protect_kernel_tunables), SD_BUS_VTABLE_PROPERTY_CONST),
 806         SD_BUS_PROPERTY("ProtectKernelModules", "b", bus_property_get_bool, offsetof(ExecContext, protect_kernel_modules), SD_BUS_VTABLE_PROPERTY_CONST),
 807         SD_BUS_PROPERTY("ProtectControlGroups", "b", bus_property_get_bool, offsetof(ExecContext, protect_control_groups), SD_BUS_VTABLE_PROPERTY_CONST),
 808         SD_BUS_PROPERTY("PrivateNetwork", "b", bus_property_get_bool, offsetof(ExecContext, private_network), SD_BUS_VTABLE_PROPERTY_CONST),
 809         SD_BUS_PROPERTY("PrivateUsers", "b", bus_property_get_bool, offsetof(ExecContext, private_users), SD_BUS_VTABLE_PROPERTY_CONST),
 810         SD_BUS_PROPERTY("ProtectHome", "s", bus_property_get_protect_home, offsetof(ExecContext, protect_home), SD_BUS_VTABLE_PROPERTY_CONST),
 811         SD_BUS_PROPERTY("ProtectSystem", "s", bus_property_get_protect_system, offsetof(ExecContext, protect_system), SD_BUS_VTABLE_PROPERTY_CONST),
 812         SD_BUS_PROPERTY("SameProcessGroup", "b", bus_property_get_bool, offsetof(ExecContext, same_pgrp), SD_BUS_VTABLE_PROPERTY_CONST),
 813         SD_BUS_PROPERTY("UtmpIdentifier", "s", NULL, offsetof(ExecContext, utmp_id), SD_BUS_VTABLE_PROPERTY_CONST),
 814         SD_BUS_PROPERTY("UtmpMode", "s", property_get_exec_utmp_mode, offsetof(ExecContext, utmp_mode), SD_BUS_VTABLE_PROPERTY_CONST),
 815         SD_BUS_PROPERTY("SELinuxContext", "(bs)", property_get_selinux_context, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 816         SD_BUS_PROPERTY("AppArmorProfile", "(bs)", property_get_apparmor_profile, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 817         SD_BUS_PROPERTY("SmackProcessLabel", "(bs)", property_get_smack_process_label, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 818         SD_BUS_PROPERTY("IgnoreSIGPIPE", "b", bus_property_get_bool, offsetof(ExecContext, ignore_sigpipe), SD_BUS_VTABLE_PROPERTY_CONST),
 819         SD_BUS_PROPERTY("NoNewPrivileges", "b", bus_property_get_bool, offsetof(ExecContext, no_new_privileges), SD_BUS_VTABLE_PROPERTY_CONST),
 820         SD_BUS_PROPERTY("SystemCallFilter", "(bas)", property_get_syscall_filter, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 821         SD_BUS_PROPERTY("SystemCallArchitectures", "as", property_get_syscall_archs, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 822         SD_BUS_PROPERTY("SystemCallErrorNumber", "i", property_get_syscall_errno, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 823         SD_BUS_PROPERTY("Personality", "s", property_get_personality, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 824         SD_BUS_PROPERTY("RestrictAddressFamilies", "(bas)", property_get_address_families, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 825         SD_BUS_PROPERTY("RuntimeDirectoryMode", "u", bus_property_get_mode, offsetof(ExecContext, runtime_directory_mode), SD_BUS_VTABLE_PROPERTY_CONST),
 826         SD_BUS_PROPERTY("RuntimeDirectory", "as", NULL, offsetof(ExecContext, runtime_directory), SD_BUS_VTABLE_PROPERTY_CONST),
 827         SD_BUS_PROPERTY("MemoryDenyWriteExecute", "b", bus_property_get_bool, offsetof(ExecContext, memory_deny_write_execute), SD_BUS_VTABLE_PROPERTY_CONST),
 828         SD_BUS_PROPERTY("RestrictRealtime", "b", bus_property_get_bool, offsetof(ExecContext, restrict_realtime), SD_BUS_VTABLE_PROPERTY_CONST),
 829         SD_BUS_PROPERTY("RestrictNamespaces", "t", bus_property_get_ulong, offsetof(ExecContext, restrict_namespaces), SD_BUS_VTABLE_PROPERTY_CONST),
 830         SD_BUS_PROPERTY("BindPaths", "a(ssbt)", property_get_bind_paths, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 831         SD_BUS_PROPERTY("BindReadOnlyPaths", "a(ssbt)", property_get_bind_paths, 0, SD_BUS_VTABLE_PROPERTY_CONST),
 832         SD_BUS_PROPERTY("MountAPIVFS", "b", bus_property_get_bool, offsetof(ExecContext, mount_apivfs), SD_BUS_VTABLE_PROPERTY_CONST),
 833         SD_BUS_VTABLE_END
 834 };
 835
 836 static int append_exec_command(sd_bus_message *reply, ExecCommand *c) {
 837         int r;
 838
 839         assert(reply);
 840         assert(c);
 841
 842         if (!c->path)
 843                 return 0;
 844
 845         r = sd_bus_message_open_container(reply, 'r', "sasbttttuii");
 846         if (r < 0)
 847                 return r;
 848
 849         r = sd_bus_message_append(reply, "s", c->path);
 850         if (r < 0)
 851                 return r;
 852
 853         r = sd_bus_message_append_strv(reply, c->argv);
 854         if (r < 0)
 855                 return r;
 856
 857         r = sd_bus_message_append(reply, "bttttuii",
 858                                   c->ignore,
 859                                   c->exec_status.start_timestamp.realtime,
 860                                   c->exec_status.start_timestamp.monotonic,
 861                                   c->exec_status.exit_timestamp.realtime,
 862                                   c->exec_status.exit_timestamp.monotonic,
 863                                   (uint32_t) c->exec_status.pid,
 864                                   (int32_t) c->exec_status.code,
 865                                   (int32_t) c->exec_status.status);
 866         if (r < 0)
 867                 return r;
 868
 869         return sd_bus_message_close_container(reply);
 870 }
 871
 872 int bus_property_get_exec_command(
 873                 sd_bus *bus,
 874                 const char *path,
 875                 const char *interface,
 876                 const char *property,
 877                 sd_bus_message *reply,
 878                 void *userdata,
 879                 sd_bus_error *ret_error) {
 880
 881         ExecCommand *c = (ExecCommand*) userdata;
 882         int r;
 883
 884         assert(bus);
 885         assert(reply);
 886
 887         r = sd_bus_message_open_container(reply, 'a', "(sasbttttuii)");
 888         if (r < 0)
 889                 return r;
 890
 891         r = append_exec_command(reply, c);
 892         if (r < 0)
 893                 return r;
 894
 895         return sd_bus_message_close_container(reply);
 896 }
 897
 898 int bus_property_get_exec_command_list(
 899                 sd_bus *bus,
 900                 const char *path,
 901                 const char *interface,
 902                 const char *property,
 903                 sd_bus_message *reply,
 904                 void *userdata,
 905                 sd_bus_error *ret_error) {
 906
 907         ExecCommand *c = *(ExecCommand**) userdata;
 908         int r;
 909
 910         assert(bus);
 911         assert(reply);
 912
 913         r = sd_bus_message_open_container(reply, 'a', "(sasbttttuii)");
 914         if (r < 0)
 915                 return r;
 916
 917         LIST_FOREACH(command, c, c) {
 918                 r = append_exec_command(reply, c);
 919                 if (r < 0)
 920                         return r;
 921         }
 922
 923         return sd_bus_message_close_container(reply);
 924 }
 925
 926 int bus_exec_context_set_transient_property(
 927                 Unit *u,
 928                 ExecContext *c,
 929                 const char *name,
 930                 sd_bus_message *message,
 931                 UnitSetPropertiesMode mode,
 932                 sd_bus_error *error) {
 933
 934         const char *soft = NULL;
 935         int r, ri;
 936
 937         assert(u);
 938         assert(c);
 939         assert(name);
 940         assert(message);
 941
 942         if (streq(name, "User")) {
 943                 const char *uu;
 944
 945                 r = sd_bus_message_read(message, "s", &uu);
 946                 if (r < 0)
 947                         return r;
 948
 949                 if (!isempty(uu) && !valid_user_group_name_or_id(uu))
 950                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid user name: %s", uu);
 951
 952                 if (mode != UNIT_CHECK) {
 953
 954                         if (isempty(uu))
 955                                 c->user = mfree(c->user);
 956                         else if (free_and_strdup(&c->user, uu) < 0)
 957                                 return -ENOMEM;
 958
 959                         unit_write_drop_in_private_format(u, mode, name, "User=%s", uu);
 960                 }
 961
 962                 return 1;
 963
 964         } else if (streq(name, "Group")) {
 965                 const char *gg;
 966
 967                 r = sd_bus_message_read(message, "s", &gg);
 968                 if (r < 0)
 969                         return r;
 970
 971                 if (!isempty(gg) && !valid_user_group_name_or_id(gg))
 972                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid group name: %s", gg);
 973
 974                 if (mode != UNIT_CHECK) {
 975
 976                         if (isempty(gg))
 977                                 c->group = mfree(c->group);
 978                         else if (free_and_strdup(&c->group, gg) < 0)
 979                                 return -ENOMEM;
 980
 981                         unit_write_drop_in_private_format(u, mode, name, "Group=%s", gg);
 982                 }
 983
 984                 return 1;
 985         } else if (streq(name, "SyslogIdentifier")) {
 986                 const char *id;
 987
 988                 r = sd_bus_message_read(message, "s", &id);
 989                 if (r < 0)
 990                         return r;
 991
 992                 if (mode != UNIT_CHECK) {
 993
 994                         if (isempty(id))
 995                                 c->syslog_identifier = mfree(c->syslog_identifier);
 996                         else if (free_and_strdup(&c->syslog_identifier, id) < 0)
 997                                 return -ENOMEM;
 998
 999                         unit_write_drop_in_private_format(u, mode, name, "SyslogIdentifier=%s", id);
1000                 }
1001
1002                 return 1;
1003         } else if (streq(name, "SyslogLevel")) {
1004                 int level;
1005
1006                 r = sd_bus_message_read(message, "i", &level);
1007                 if (r < 0)
1008                         return r;
1009
1010                 if (!log_level_is_valid(level))
1011                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Log level value out of range");
1012
1013                 if (mode != UNIT_CHECK) {
1014                         c->syslog_priority = (c->syslog_priority & LOG_FACMASK) | level;
1015                         unit_write_drop_in_private_format(u, mode, name, "SyslogLevel=%i", level);
1016                 }
1017
1018                 return 1;
1019         } else if (streq(name, "SyslogFacility")) {
1020                 int facility;
1021
1022                 r = sd_bus_message_read(message, "i", &facility);
1023                 if (r < 0)
1024                         return r;
1025
1026                 if (!log_facility_unshifted_is_valid(facility))
1027                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Log facility value out of range");
1028
1029                 if (mode != UNIT_CHECK) {
1030                         c->syslog_priority = (facility << 3) | LOG_PRI(c->syslog_priority);
1031                         unit_write_drop_in_private_format(u, mode, name, "SyslogFacility=%i", facility);
1032                 }
1033
1034                 return 1;
1035         } else if (streq(name, "Nice")) {
1036                 int n;
1037
1038                 r = sd_bus_message_read(message, "i", &n);
1039                 if (r < 0)
1040                         return r;
1041
1042                 if (!nice_is_valid(n))
1043                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Nice value out of range");
1044
1045                 if (mode != UNIT_CHECK) {
1046                         c->nice = n;
1047                         unit_write_drop_in_private_format(u, mode, name, "Nice=%i", n);
1048                 }
1049
1050                 return 1;
1051
1052         } else if (STR_IN_SET(name, "TTYPath", "RootDirectory", "RootImage")) {
1053                 const char *s;
1054
1055                 r = sd_bus_message_read(message, "s", &s);
1056                 if (r < 0)
1057                         return r;
1058
1059                 if (!path_is_absolute(s))
1060                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "%s takes an absolute path", name);
1061
1062                 if (mode != UNIT_CHECK) {
1063                         if (streq(name, "TTYPath"))
1064                                 r = free_and_strdup(&c->tty_path, s);
1065                         else if (streq(name, "RootImage"))
1066                                 r = free_and_strdup(&c->root_image, s);
1067                         else {
1068                                 assert(streq(name, "RootDirectory"));
1069                                 r = free_and_strdup(&c->root_directory, s);
1070                         }
1071                         if (r < 0)
1072                                 return r;
1073
1074                         unit_write_drop_in_private_format(u, mode, name, "%s=%s", name, s);
1075                 }
1076
1077                 return 1;
1078
1079         } else if (streq(name, "WorkingDirectory")) {
1080                 const char *s;
1081                 bool missing_ok;
1082
1083                 r = sd_bus_message_read(message, "s", &s);
1084                 if (r < 0)
1085                         return r;
1086
1087                 if (s[0] == '-') {
1088                         missing_ok = true;
1089                         s++;
1090                 } else
1091                         missing_ok = false;
1092
1093                 if (!streq(s, "~") && !path_is_absolute(s))
1094                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "WorkingDirectory= expects an absolute path or '~'");
1095
1096                 if (mode != UNIT_CHECK) {
1097                         if (streq(s, "~")) {
1098                                 c->working_directory = mfree(c->working_directory);
1099                                 c->working_directory_home = true;
1100                         } else {
1101                                 r = free_and_strdup(&c->working_directory, s);
1102                                 if (r < 0)
1103                                         return r;
1104
1105                                 c->working_directory_home = false;
1106                         }
1107
1108                         c->working_directory_missing_ok = missing_ok;
1109                         unit_write_drop_in_private_format(u, mode, name, "WorkingDirectory=%s%s", missing_ok ? "-" : "", s);
1110                 }
1111
1112                 return 1;
1113
1114         } else if (streq(name, "StandardInput")) {
1115                 const char *s;
1116                 ExecInput p;
1117
1118                 r = sd_bus_message_read(message, "s", &s);
1119                 if (r < 0)
1120                         return r;
1121
1122                 p = exec_input_from_string(s);
1123                 if (p < 0)
1124                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid standard input name");
1125
1126                 if (mode != UNIT_CHECK) {
1127                         c->std_input = p;
1128
1129                         unit_write_drop_in_private_format(u, mode, name, "StandardInput=%s", exec_input_to_string(p));
1130                 }
1131
1132                 return 1;
1133
1134         } else if (streq(name, "StandardOutput")) {
1135                 const char *s;
1136                 ExecOutput p;
1137
1138                 r = sd_bus_message_read(message, "s", &s);
1139                 if (r < 0)
1140                         return r;
1141
1142                 p = exec_output_from_string(s);
1143                 if (p < 0)
1144                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid standard output name");
1145
1146                 if (mode != UNIT_CHECK) {
1147                         c->std_output = p;
1148
1149                         unit_write_drop_in_private_format(u, mode, name, "StandardOutput=%s", exec_output_to_string(p));
1150                 }
1151
1152                 return 1;
1153
1154         } else if (streq(name, "StandardError")) {
1155                 const char *s;
1156                 ExecOutput p;
1157
1158                 r = sd_bus_message_read(message, "s", &s);
1159                 if (r < 0)
1160                         return r;
1161
1162                 p = exec_output_from_string(s);
1163                 if (p < 0)
1164                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid standard error name");
1165
1166                 if (mode != UNIT_CHECK) {
1167                         c->std_error = p;
1168
1169                         unit_write_drop_in_private_format(u, mode, name, "StandardError=%s", exec_output_to_string(p));
1170                 }
1171
1172                 return 1;
1173
1174         } else if (STR_IN_SET(name,
1175                               "StandardInputFileDescriptorName", "StandardOutputFileDescriptorName", "StandardErrorFileDescriptorName")) {
1176                 const char *s;
1177
1178                 r = sd_bus_message_read(message, "s", &s);
1179                 if (r < 0)
1180                         return r;
1181
1182                 if (!fdname_is_valid(s))
1183                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid file descriptor name");
1184
1185                 if (mode != UNIT_CHECK) {
1186                         if (streq(name, "StandardInputFileDescriptorName")) {
1187                                 c->std_input = EXEC_INPUT_NAMED_FD;
1188                                 r = free_and_strdup(&c->stdio_fdname[STDIN_FILENO], s);
1189                                 if (r < 0)
1190                                         return r;
1191                                 unit_write_drop_in_private_format(u, mode, name, "StandardInput=fd:%s", s);
1192                         } else if (streq(name, "StandardOutputFileDescriptorName")) {
1193                                 c->std_output = EXEC_OUTPUT_NAMED_FD;
1194                                 r = free_and_strdup(&c->stdio_fdname[STDOUT_FILENO], s);
1195                                 if (r < 0)
1196                                         return r;
1197                                 unit_write_drop_in_private_format(u, mode, name, "StandardOutput=fd:%s", s);
1198                         } else if (streq(name, "StandardErrorFileDescriptorName")) {
1199                                 c->std_error = EXEC_OUTPUT_NAMED_FD;
1200                                 r = free_and_strdup(&c->stdio_fdname[STDERR_FILENO], s);
1201                                 if (r < 0)
1202                                         return r;
1203                                 unit_write_drop_in_private_format(u, mode, name, "StandardError=fd:%s", s);
1204                         }
1205                 }
1206
1207                 return 1;
1208
1209         } else if (STR_IN_SET(name,
1210                               "IgnoreSIGPIPE", "TTYVHangup", "TTYReset",
1211                               "PrivateTmp", "PrivateDevices", "PrivateNetwork", "PrivateUsers",
1212                               "NoNewPrivileges", "SyslogLevelPrefix", "MemoryDenyWriteExecute",
1213                               "RestrictRealtime", "DynamicUser", "RemoveIPC", "ProtectKernelTunables",
1214                               "ProtectKernelModules", "ProtectControlGroups", "MountAPIVFS")) {
1215                 int b;
1216
1217                 r = sd_bus_message_read(message, "b", &b);
1218                 if (r < 0)
1219                         return r;
1220
1221                 if (mode != UNIT_CHECK) {
1222                         if (streq(name, "IgnoreSIGPIPE"))
1223                                 c->ignore_sigpipe = b;
1224                         else if (streq(name, "TTYVHangup"))
1225                                 c->tty_vhangup = b;
1226                         else if (streq(name, "TTYReset"))
1227                                 c->tty_reset = b;
1228                         else if (streq(name, "PrivateTmp"))
1229                                 c->private_tmp = b;
1230                         else if (streq(name, "PrivateDevices"))
1231                                 c->private_devices = b;
1232                         else if (streq(name, "PrivateNetwork"))
1233                                 c->private_network = b;
1234                         else if (streq(name, "PrivateUsers"))
1235                                 c->private_users = b;
1236                         else if (streq(name, "NoNewPrivileges"))
1237                                 c->no_new_privileges = b;
1238                         else if (streq(name, "SyslogLevelPrefix"))
1239                                 c->syslog_level_prefix = b;
1240                         else if (streq(name, "MemoryDenyWriteExecute"))
1241                                 c->memory_deny_write_execute = b;
1242                         else if (streq(name, "RestrictRealtime"))
1243                                 c->restrict_realtime = b;
1244                         else if (streq(name, "DynamicUser"))
1245                                 c->dynamic_user = b;
1246                         else if (streq(name, "RemoveIPC"))
1247                                 c->remove_ipc = b;
1248                         else if (streq(name, "ProtectKernelTunables"))
1249                                 c->protect_kernel_tunables = b;
1250                         else if (streq(name, "ProtectKernelModules"))
1251                                 c->protect_kernel_modules = b;
1252                         else if (streq(name, "ProtectControlGroups"))
1253                                 c->protect_control_groups = b;
1254                         else if (streq(name, "MountAPIVFS"))
1255                                 c->mount_apivfs = b;
1256
1257                         unit_write_drop_in_private_format(u, mode, name, "%s=%s", name, yes_no(b));
1258                 }
1259
1260                 return 1;
1261
1262         } else if (streq(name, "UtmpIdentifier")) {
1263                 const char *id;
1264
1265                 r = sd_bus_message_read(message, "s", &id);
1266                 if (r < 0)
1267                         return r;
1268
1269                 if (mode != UNIT_CHECK) {
1270                         if (isempty(id))
1271                                 c->utmp_id = mfree(c->utmp_id);
1272                         else if (free_and_strdup(&c->utmp_id, id) < 0)
1273                                 return -ENOMEM;
1274
1275                         unit_write_drop_in_private_format(u, mode, name, "UtmpIdentifier=%s", strempty(id));
1276                 }
1277
1278                 return 1;
1279
1280         } else if (streq(name, "UtmpMode")) {
1281                 const char *s;
1282                 ExecUtmpMode m;
1283
1284                 r = sd_bus_message_read(message, "s", &s);
1285                 if (r < 0)
1286                         return r;
1287
1288                 m = exec_utmp_mode_from_string(s);
1289                 if (m < 0)
1290                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid utmp mode");
1291
1292                 if (mode != UNIT_CHECK) {
1293                         c->utmp_mode = m;
1294
1295                         unit_write_drop_in_private_format(u, mode, name, "UtmpMode=%s", exec_utmp_mode_to_string(m));
1296                 }
1297
1298                 return 1;
1299
1300         } else if (streq(name, "PAMName")) {
1301                 const char *n;
1302
1303                 r = sd_bus_message_read(message, "s", &n);
1304                 if (r < 0)
1305                         return r;
1306
1307                 if (mode != UNIT_CHECK) {
1308                         if (isempty(n))
1309                                 c->pam_name = mfree(c->pam_name);
1310                         else if (free_and_strdup(&c->pam_name, n) < 0)
1311                                 return -ENOMEM;
1312
1313                         unit_write_drop_in_private_format(u, mode, name, "PAMName=%s", strempty(n));
1314                 }
1315
1316                 return 1;
1317
1318         } else if (streq(name, "Environment")) {
1319
1320                 _cleanup_strv_free_ char **l = NULL;
1321
1322                 r = sd_bus_message_read_strv(message, &l);
1323                 if (r < 0)
1324                         return r;
1325
1326                 if (!strv_env_is_valid(l))
1327                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid environment block.");
1328
1329                 if (mode != UNIT_CHECK) {
1330                         _cleanup_free_ char *joined = NULL;
1331                         char **e;
1332
1333                         if (strv_length(l) == 0) {
1334                                 c->environment = strv_free(c->environment);
1335                                 unit_write_drop_in_private_format(u, mode, name, "Environment=");
1336                         } else {
1337                                 e = strv_env_merge(2, c->environment, l);
1338                                 if (!e)
1339                                         return -ENOMEM;
1340
1341                                 strv_free(c->environment);
1342                                 c->environment = e;
1343
1344                                 joined = strv_join_quoted(c->environment);
1345                                 if (!joined)
1346                                         return -ENOMEM;
1347
1348                                 unit_write_drop_in_private_format(u, mode, name, "Environment=%s", joined);
1349                         }
1350                 }
1351
1352                 return 1;
1353
1354         } else if (streq(name, "TimerSlackNSec")) {
1355
1356                 nsec_t n;
1357
1358                 r = sd_bus_message_read(message, "t", &n);
1359                 if (r < 0)
1360                         return r;
1361
1362                 if (mode != UNIT_CHECK) {
1363                         c->timer_slack_nsec = n;
1364                         unit_write_drop_in_private_format(u, mode, name, "TimerSlackNSec=" NSEC_FMT, n);
1365                 }
1366
1367                 return 1;
1368
1369         } else if (streq(name, "OOMScoreAdjust")) {
1370                 int oa;
1371
1372                 r = sd_bus_message_read(message, "i", &oa);
1373                 if (r < 0)
1374                         return r;
1375
1376                 if (!oom_score_adjust_is_valid(oa))
1377                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "OOM score adjust value out of range");
1378
1379                 if (mode != UNIT_CHECK) {
1380                         c->oom_score_adjust = oa;
1381                         c->oom_score_adjust_set = true;
1382                         unit_write_drop_in_private_format(u, mode, name, "OOMScoreAdjust=%i", oa);
1383                 }
1384
1385                 return 1;
1386
1387         } else if (streq(name, "EnvironmentFiles")) {
1388
1389                 _cleanup_free_ char *joined = NULL;
1390                 _cleanup_fclose_ FILE *f = NULL;
1391                 _cleanup_strv_free_ char **l = NULL;
1392                 size_t size = 0;
1393                 char **i;
1394
1395                 r = sd_bus_message_enter_container(message, 'a', "(sb)");
1396                 if (r < 0)
1397                         return r;
1398
1399                 f = open_memstream(&joined, &size);
1400                 if (!f)
1401                         return -ENOMEM;
1402
1403                 STRV_FOREACH(i, c->environment_files)
1404                         fprintf(f, "EnvironmentFile=%s", *i);
1405
1406                 while ((r = sd_bus_message_enter_container(message, 'r', "sb")) > 0) {
1407                         const char *path;
1408                         int b;
1409
1410                         r = sd_bus_message_read(message, "sb", &path, &b);
1411                         if (r < 0)
1412                                 return r;
1413
1414                         r = sd_bus_message_exit_container(message);
1415                         if (r < 0)
1416                                 return r;
1417
1418                         if (!path_is_absolute(path))
1419                                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path);
1420
1421                         if (mode != UNIT_CHECK) {
1422                                 char *buf = NULL;
1423
1424                                 buf = strjoin(b ? "-" : "", path);
1425                                 if (!buf)
1426                                         return -ENOMEM;
1427
1428                                 fprintf(f, "EnvironmentFile=%s", buf);
1429
1430                                 r = strv_consume(&l, buf);
1431                                 if (r < 0)
1432                                         return r;
1433                         }
1434                 }
1435                 if (r < 0)
1436                         return r;
1437
1438                 r = sd_bus_message_exit_container(message);
1439                 if (r < 0)
1440                         return r;
1441
1442                 r = fflush_and_check(f);
1443                 if (r < 0)
1444                         return r;
1445
1446                 if (mode != UNIT_CHECK) {
1447                         if (strv_isempty(l)) {
1448                                 c->environment_files = strv_free(c->environment_files);
1449                                 unit_write_drop_in_private(u, mode, name, "EnvironmentFile=");
1450                         } else {
1451                                 r = strv_extend_strv(&c->environment_files, l, true);
1452                                 if (r < 0)
1453                                         return r;
1454
1455                                 unit_write_drop_in_private(u, mode, name, joined);
1456                         }
1457                 }
1458
1459                 return 1;
1460
1461         } else if (streq(name, "PassEnvironment")) {
1462
1463                 _cleanup_strv_free_ char **l = NULL;
1464
1465                 r = sd_bus_message_read_strv(message, &l);
1466                 if (r < 0)
1467                         return r;
1468
1469                 if (!strv_env_name_is_valid(l))
1470                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid PassEnvironment block.");
1471
1472                 if (mode != UNIT_CHECK) {
1473                         if (strv_isempty(l)) {
1474                                 c->pass_environment = strv_free(c->pass_environment);
1475                                 unit_write_drop_in_private_format(u, mode, name, "PassEnvironment=");
1476                         } else {
1477                                 _cleanup_free_ char *joined = NULL;
1478
1479                                 r = strv_extend_strv(&c->pass_environment, l, true);
1480                                 if (r < 0)
1481                                         return r;
1482
1483                                 joined = strv_join_quoted(c->pass_environment);
1484                                 if (!joined)
1485                                         return -ENOMEM;
1486
1487                                 unit_write_drop_in_private_format(u, mode, name, "PassEnvironment=%s", joined);
1488                         }
1489                 }
1490
1491                 return 1;
1492
1493         } else if (STR_IN_SET(name, "ReadWriteDirectories", "ReadOnlyDirectories", "InaccessibleDirectories",
1494                               "ReadWritePaths", "ReadOnlyPaths", "InaccessiblePaths")) {
1495                 _cleanup_strv_free_ char **l = NULL;
1496                 char ***dirs;
1497                 char **p;
1498
1499                 r = sd_bus_message_read_strv(message, &l);
1500                 if (r < 0)
1501                         return r;
1502
1503                 STRV_FOREACH(p, l) {
1504                         const char *i = *p;
1505                         size_t offset;
1506
1507                         if (!utf8_is_valid(i))
1508                                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid %s", name);
1509
1510                         offset = i[0] == '-';
1511                         offset += i[offset] == '+';
1512                         if (!path_is_absolute(i + offset))
1513                                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid %s", name);
1514                 }
1515
1516                 if (mode != UNIT_CHECK) {
1517                         _cleanup_free_ char *joined = NULL;
1518
1519                         if (STR_IN_SET(name, "ReadWriteDirectories", "ReadWritePaths"))
1520                                 dirs = &c->read_write_paths;
1521                         else if (STR_IN_SET(name, "ReadOnlyDirectories", "ReadOnlyPaths"))
1522                                 dirs = &c->read_only_paths;
1523                         else /* "InaccessiblePaths" */
1524                                 dirs = &c->inaccessible_paths;
1525
1526                         if (strv_length(l) == 0) {
1527                                 *dirs = strv_free(*dirs);
1528                                 unit_write_drop_in_private_format(u, mode, name, "%s=", name);
1529                         } else {
1530                                 r = strv_extend_strv(dirs, l, true);
1531                                 if (r < 0)
1532                                         return -ENOMEM;
1533
1534                                 joined = strv_join_quoted(*dirs);
1535                                 if (!joined)
1536                                         return -ENOMEM;
1537
1538                                 unit_write_drop_in_private_format(u, mode, name, "%s=%s", name, joined);
1539                         }
1540
1541                 }
1542
1543                 return 1;
1544
1545         } else if (streq(name, "ProtectSystem")) {
1546                 const char *s;
1547                 ProtectSystem ps;
1548
1549                 r = sd_bus_message_read(message, "s", &s);
1550                 if (r < 0)
1551                         return r;
1552
1553                 r = parse_boolean(s);
1554                 if (r > 0)
1555                         ps = PROTECT_SYSTEM_YES;
1556                 else if (r == 0)
1557                         ps = PROTECT_SYSTEM_NO;
1558                 else {
1559                         ps = protect_system_from_string(s);
1560                         if (ps < 0)
1561                                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Failed to parse protect system value");
1562                 }
1563
1564                 if (mode != UNIT_CHECK) {
1565                         c->protect_system = ps;
1566                         unit_write_drop_in_private_format(u, mode, name, "%s=%s", name, s);
1567                 }
1568
1569                 return 1;
1570
1571         } else if (streq(name, "ProtectHome")) {
1572                 const char *s;
1573                 ProtectHome ph;
1574
1575                 r = sd_bus_message_read(message, "s", &s);
1576                 if (r < 0)
1577                         return r;
1578
1579                 r = parse_boolean(s);
1580                 if (r > 0)
1581                         ph = PROTECT_HOME_YES;
1582                 else if (r == 0)
1583                         ph = PROTECT_HOME_NO;
1584                 else {
1585                         ph = protect_home_from_string(s);
1586                         if (ph < 0)
1587                                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Failed to parse protect home value");
1588                 }
1589
1590                 if (mode != UNIT_CHECK) {
1591                         c->protect_home = ph;
1592                         unit_write_drop_in_private_format(u, mode, name, "%s=%s", name, s);
1593                 }
1594
1595                 return 1;
1596
1597         } else if (streq(name, "RuntimeDirectory")) {
1598                 _cleanup_strv_free_ char **l = NULL;
1599                 char **p;
1600
1601                 r = sd_bus_message_read_strv(message, &l);
1602                 if (r < 0)
1603                         return r;
1604
1605                 STRV_FOREACH(p, l) {
1606                         if (!filename_is_valid(*p))
1607                                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Runtime directory is not valid %s", *p);
1608                 }
1609
1610                 if (mode != UNIT_CHECK) {
1611                         _cleanup_free_ char *joined = NULL;
1612
1613                         if (strv_isempty(l)) {
1614                                 c->runtime_directory = strv_free(c->runtime_directory);
1615                                 unit_write_drop_in_private_format(u, mode, name, "%s=", name);
1616                         } else {
1617                                 r = strv_extend_strv(&c->runtime_directory, l, true);
1618
1619                                 if (r < 0)
1620                                         return -ENOMEM;
1621
1622                                 joined = strv_join_quoted(c->runtime_directory);
1623                                 if (!joined)
1624                                         return -ENOMEM;
1625
1626                                 unit_write_drop_in_private_format(u, mode, name, "%s=%s", name, joined);
1627                         }
1628                 }
1629
1630                 return 1;
1631
1632         } else if (streq(name, "SELinuxContext")) {
1633                 const char *s;
1634
1635                 r = sd_bus_message_read(message, "s", &s);
1636                 if (r < 0)
1637                         return r;
1638
1639                 if (mode != UNIT_CHECK) {
1640                         if (isempty(s))
1641                                 c->selinux_context = mfree(c->selinux_context);
1642                         else if (free_and_strdup(&c->selinux_context, s) < 0)
1643                                 return -ENOMEM;
1644
1645                         unit_write_drop_in_private_format(u, mode, name, "%s=%s", name, strempty(s));
1646                 }
1647
1648                 return 1;
1649         } else if (streq(name, "RestrictNamespaces")) {
1650                 uint64_t flags;
1651
1652                 r = sd_bus_message_read(message, "t", &flags);
1653                 if (r < 0)
1654                         return r;
1655                 if ((flags & NAMESPACE_FLAGS_ALL) != flags)
1656                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown namespace types");
1657
1658                 if (mode != UNIT_CHECK) {
1659                         _cleanup_free_ char *s = NULL;
1660
1661                         r = namespace_flag_to_string_many(flags, &s);
1662                         if (r < 0)
1663                                 return r;
1664
1665                         c->restrict_namespaces = flags;
1666                         unit_write_drop_in_private_format(u, mode, name, "%s=%s", name, s);
1667                 }
1668
1669                 return 1;
1670         } else if (streq(name, "MountFlags")) {
1671                 uint64_t flags;
1672
1673                 r = sd_bus_message_read(message, "t", &flags);
1674                 if (r < 0)
1675                         return r;
1676                 if (!IN_SET(flags, 0, MS_SHARED, MS_PRIVATE, MS_SLAVE))
1677                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown mount propagation flags");
1678
1679                 if (mode != UNIT_CHECK) {
1680                         c->mount_flags = flags;
1681
1682                         unit_write_drop_in_private_format(u, mode, name, "%s=%s", name, mount_propagation_flags_to_string(flags));
1683                 }
1684
1685                 return 1;
1686         } else if (STR_IN_SET(name, "BindPaths", "BindReadOnlyPaths")) {
1687                 unsigned empty = true;
1688
1689                 r = sd_bus_message_enter_container(message, 'a', "(ssbt)");
1690                 if (r < 0)
1691                         return r;
1692
1693                 while ((r = sd_bus_message_enter_container(message, 'r', "ssbt")) > 0) {
1694                         const char *source, *destination;
1695                         int ignore_enoent;
1696                         uint64_t mount_flags;
1697
1698                         r = sd_bus_message_read(message, "ssbt", &source, &destination, &ignore_enoent, &mount_flags);
1699                         if (r < 0)
1700                                 return r;
1701
1702                         r = sd_bus_message_exit_container(message);
1703                         if (r < 0)
1704                                 return r;
1705
1706                         if (!path_is_absolute(source))
1707                                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Source path %s is not absolute.", source);
1708                         if (!path_is_absolute(destination))
1709                                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Destination path %s is not absolute.", destination);
1710                         if (!IN_SET(mount_flags, 0, MS_REC))
1711                                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown mount flags.");
1712
1713                         if (mode != UNIT_CHECK) {
1714                                 r = bind_mount_add(&c->bind_mounts, &c->n_bind_mounts,
1715                                                    &(BindMount) {
1716                                                            .source = strdup(source),
1717                                                            .destination = strdup(destination),
1718                                                            .read_only = !!strstr(name, "ReadOnly"),
1719                                                            .recursive = !!(mount_flags & MS_REC),
1720                                                            .ignore_enoent = ignore_enoent,
1721                                                    });
1722                                 if (r < 0)
1723                                         return r;
1724
1725                                 unit_write_drop_in_private_format(
1726                                                 u, mode, name,
1727                                                 "%s=%s%s:%s:%s",
1728                                                 name,
1729                                                 ignore_enoent ? "-" : "",
1730                                                 source,
1731                                                 destination,
1732                                                 (mount_flags & MS_REC) ? "rbind" : "norbind");
1733                         }
1734
1735                         empty = false;
1736                 }
1737                 if (r < 0)
1738                         return r;
1739
1740                 r = sd_bus_message_exit_container(message);
1741                 if (r < 0)
1742                         return r;
1743
1744                 if (empty) {
1745                         bind_mount_free_many(c->bind_mounts, c->n_bind_mounts);
1746                         c->bind_mounts = NULL;
1747                         c->n_bind_mounts = 0;
1748                 }
1749
1750                 return 1;
1751         }
1752
1753         ri = rlimit_from_string(name);
1754         if (ri < 0) {
1755                 soft = endswith(name, "Soft");
1756                 if (soft) {
1757                         const char *n;
1758
1759                         n = strndupa(name, soft - name);
1760                         ri = rlimit_from_string(n);
1761                         if (ri >= 0)
1762                                 name = n;
1763
1764                 }
1765         }
1766
1767         if (ri >= 0) {
1768                 uint64_t rl;
1769                 rlim_t x;
1770
1771                 r = sd_bus_message_read(message, "t", &rl);
1772                 if (r < 0)
1773                         return r;
1774
1775                 if (rl == (uint64_t) -1)
1776                         x = RLIM_INFINITY;
1777                 else {
1778                         x = (rlim_t) rl;
1779
1780                         if ((uint64_t) x != rl)
1781                                 return -ERANGE;
1782                 }
1783
1784                 if (mode != UNIT_CHECK) {
1785                         _cleanup_free_ char *f = NULL;
1786                         struct rlimit nl;
1787
1788                         if (c->rlimit[ri]) {
1789                                 nl = *c->rlimit[ri];
1790
1791                                 if (soft)
1792                                         nl.rlim_cur = x;
1793                                 else
1794                                         nl.rlim_max = x;
1795                         } else
1796                                 /* When the resource limit is not initialized yet, then assign the value to both fields */
1797                                 nl = (struct rlimit) {
1798                                         .rlim_cur = x,
1799                                         .rlim_max = x,
1800                                 };
1801
1802                         r = rlimit_format(&nl, &f);
1803                         if (r < 0)
1804                                 return r;
1805
1806                         if (c->rlimit[ri])
1807                                 *c->rlimit[ri] = nl;
1808                         else {
1809                                 c->rlimit[ri] = newdup(struct rlimit, &nl, 1);
1810                                 if (!c->rlimit[ri])
1811                                         return -ENOMEM;
1812                         }
1813
1814                         unit_write_drop_in_private_format(u, mode, name, "%s=%s", name, f);
1815                 }
1816
1817                 return 1;
1818         }
1819
1820         return 0;
1821 }