src/boot/bootctl.c

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2
   3 #include <ctype.h>
   4 #include <errno.h>
   5 #include <getopt.h>
   6 #include <limits.h>
   7 #include <linux/magic.h>
   8 #include <stdbool.h>
   9 #include <stdlib.h>
  10 #include <sys/mman.h>
  11 #include <unistd.h>
  12
  13 #include "sd-id128.h"
  14
  15 #include "alloc-util.h"
  16 #include "blkid-util.h"
  17 #include "bootspec.h"
  18 #include "copy.h"
  19 #include "dirent-util.h"
  20 #include "efi-api.h"
  21 #include "efi-loader.h"
  22 #include "efivars.h"
  23 #include "env-file.h"
  24 #include "env-util.h"
  25 #include "escape.h"
  26 #include "fd-util.h"
  27 #include "fileio.h"
  28 #include "find-esp.h"
  29 #include "fs-util.h"
  30 #include "glyph-util.h"
  31 #include "main-func.h"
  32 #include "mkdir.h"
  33 #include "os-util.h"
  34 #include "pager.h"
  35 #include "parse-argument.h"
  36 #include "parse-util.h"
  37 #include "pretty-print.h"
  38 #include "random-util.h"
  39 #include "rm-rf.h"
  40 #include "stat-util.h"
  41 #include "stdio-util.h"
  42 #include "string-table.h"
  43 #include "string-util.h"
  44 #include "strv.h"
  45 #include "sync-util.h"
  46 #include "terminal-util.h"
  47 #include "tmpfile-util.h"
  48 #include "tmpfile-util-label.h"
  49 #include "umask-util.h"
  50 #include "utf8.h"
  51 #include "util.h"
  52 #include "verbs.h"
  53 #include "virt.h"
  54
  55 static char *arg_esp_path = NULL;
  56 static char *arg_xbootldr_path = NULL;
  57 static bool arg_print_esp_path = false;
  58 static bool arg_print_dollar_boot_path = false;
  59 static bool arg_touch_variables = true;
  60 static PagerFlags arg_pager_flags = 0;
  61 static bool arg_graceful = false;
  62 static int arg_make_entry_directory = false; /* tri-state: < 0 for automatic logic */
  63 static sd_id128_t arg_machine_id = SD_ID128_NULL;
  64 static char *arg_install_layout = NULL;
  65 static enum {
  66         ARG_ENTRY_TOKEN_MACHINE_ID,
  67         ARG_ENTRY_TOKEN_OS_IMAGE_ID,
  68         ARG_ENTRY_TOKEN_OS_ID,
  69         ARG_ENTRY_TOKEN_LITERAL,
  70         ARG_ENTRY_TOKEN_AUTO,
  71 } arg_entry_token_type = ARG_ENTRY_TOKEN_AUTO;
  72 static char *arg_entry_token = NULL;
  73 static JsonFormatFlags arg_json_format_flags = JSON_FORMAT_OFF;
  74
  75 STATIC_DESTRUCTOR_REGISTER(arg_esp_path, freep);
  76 STATIC_DESTRUCTOR_REGISTER(arg_xbootldr_path, freep);
  77 STATIC_DESTRUCTOR_REGISTER(arg_install_layout, freep);
  78 STATIC_DESTRUCTOR_REGISTER(arg_entry_token, freep);
  79
  80 static const char *arg_dollar_boot_path(void) {
  81         /* $BOOT shall be the XBOOTLDR partition if it exists, and otherwise the ESP */
  82         return arg_xbootldr_path ?: arg_esp_path;
  83 }
  84
  85 static int acquire_esp(
  86                 bool unprivileged_mode,
  87                 bool graceful,
  88                 uint32_t *ret_part,
  89                 uint64_t *ret_pstart,
  90                 uint64_t *ret_psize,
  91                 sd_id128_t *ret_uuid,
  92                 dev_t *ret_devid) {
  93
  94         char *np;
  95         int r;
  96
  97         /* Find the ESP, and log about errors. Note that find_esp_and_warn() will log in all error cases on
  98          * its own, except for ENOKEY (which is good, we want to show our own message in that case,
  99          * suggesting use of --esp-path=) and EACCESS (only when we request unprivileged mode; in this case
 100          * we simply eat up the error here, so that --list and --status work too, without noise about
 101          * this). */
 102
 103         r = find_esp_and_warn(arg_esp_path, unprivileged_mode, &np, ret_part, ret_pstart, ret_psize, ret_uuid, ret_devid);
 104         if (r == -ENOKEY) {
 105                 if (graceful)
 106                         return log_info_errno(r, "Couldn't find EFI system partition, skipping.");
 107
 108                 return log_error_errno(r,
 109                                        "Couldn't find EFI system partition. It is recommended to mount it to /boot or /efi.\n"
 110                                        "Alternatively, use --esp-path= to specify path to mount point.");
 111         }
 112         if (r < 0)
 113                 return r;
 114
 115         free_and_replace(arg_esp_path, np);
 116         log_debug("Using EFI System Partition at %s.", arg_esp_path);
 117
 118         return 1;
 119 }
 120
 121 static int acquire_xbootldr(
 122                 bool unprivileged_mode,
 123                 sd_id128_t *ret_uuid,
 124                 dev_t *ret_devid) {
 125
 126         char *np;
 127         int r;
 128
 129         r = find_xbootldr_and_warn(arg_xbootldr_path, unprivileged_mode, &np, ret_uuid, ret_devid);
 130         if (r == -ENOKEY) {
 131                 log_debug_errno(r, "Didn't find an XBOOTLDR partition, using the ESP as $BOOT.");
 132                 arg_xbootldr_path = mfree(arg_xbootldr_path);
 133
 134                 if (ret_uuid)
 135                         *ret_uuid = SD_ID128_NULL;
 136                 if (ret_devid)
 137                         *ret_devid = 0;
 138                 return 0;
 139         }
 140         if (r < 0)
 141                 return r;
 142
 143         free_and_replace(arg_xbootldr_path, np);
 144         log_debug("Using XBOOTLDR partition at %s as $BOOT.", arg_xbootldr_path);
 145
 146         return 1;
 147 }
 148
 149 static int load_etc_machine_id(void) {
 150         int r;
 151
 152         r = sd_id128_get_machine(&arg_machine_id);
 153         if (IN_SET(r, -ENOENT, -ENOMEDIUM)) /* Not set or empty */
 154                 return 0;
 155         if (r < 0)
 156                 return log_error_errno(r, "Failed to get machine-id: %m");
 157
 158         log_debug("Loaded machine ID %s from /etc/machine-id.", SD_ID128_TO_STRING(arg_machine_id));
 159         return 0;
 160 }
 161
 162 static int load_etc_machine_info(void) {
 163         /* systemd v250 added support to store the kernel-install layout setting and the machine ID to use
 164          * for setting up the ESP in /etc/machine-info. The newer /etc/kernel/entry-token file, as well as
 165          * the $layout field in /etc/kernel/install.conf are better replacements for this though, hence this
 166          * has been deprecated and is only returned for compatibility. */
 167         _cleanup_free_ char *s = NULL, *layout = NULL;
 168         int r;
 169
 170         r = parse_env_file(NULL, "/etc/machine-info",
 171                            "KERNEL_INSTALL_LAYOUT", &layout,
 172                            "KERNEL_INSTALL_MACHINE_ID", &s);
 173         if (r == -ENOENT)
 174                 return 0;
 175         if (r < 0)
 176                 return log_error_errno(r, "Failed to parse /etc/machine-info: %m");
 177
 178         if (!isempty(s)) {
 179                 log_notice("Read $KERNEL_INSTALL_MACHINE_ID from /etc/machine-info. Please move it to /etc/kernel/entry-token.");
 180
 181                 r = sd_id128_from_string(s, &arg_machine_id);
 182                 if (r < 0)
 183                         return log_error_errno(r, "Failed to parse KERNEL_INSTALL_MACHINE_ID=%s in /etc/machine-info: %m", s);
 184
 185                 log_debug("Loaded KERNEL_INSTALL_MACHINE_ID=%s from KERNEL_INSTALL_MACHINE_ID in /etc/machine-info.",
 186                           SD_ID128_TO_STRING(arg_machine_id));
 187         }
 188
 189         if (!isempty(layout)) {
 190                 log_notice("Read $KERNEL_INSTALL_LAYOUT from /etc/machine-info. Please move it to the layout= setting of /etc/kernel/install.conf.");
 191
 192                 log_debug("KERNEL_INSTALL_LAYOUT=%s is specified in /etc/machine-info.", layout);
 193                 free_and_replace(arg_install_layout, layout);
 194         }
 195
 196         return 0;
 197 }
 198
 199 static int load_etc_kernel_install_conf(void) {
 200         _cleanup_free_ char *layout = NULL;
 201         int r;
 202
 203         r = parse_env_file(NULL, "/etc/kernel/install.conf",
 204                            "layout", &layout);
 205         if (r == -ENOENT)
 206                 return 0;
 207         if (r < 0)
 208                 return log_error_errno(r, "Failed to parse /etc/kernel/install.conf: %m");
 209
 210         if (!isempty(layout)) {
 211                 log_debug("layout=%s is specified in /etc/machine-info.", layout);
 212                 free_and_replace(arg_install_layout, layout);
 213         }
 214
 215         return 0;
 216 }
 217
 218 static int settle_entry_token(void) {
 219         int r;
 220
 221         switch (arg_entry_token_type) {
 222
 223         case ARG_ENTRY_TOKEN_AUTO: {
 224                 _cleanup_free_ char *buf = NULL;
 225                 r = read_one_line_file("/etc/kernel/entry-token", &buf);
 226                 if (r < 0 && r != -ENOENT)
 227                         return log_error_errno(r, "Failed to read /etc/kernel/entry-token: %m");
 228
 229                 if (!isempty(buf)) {
 230                         free_and_replace(arg_entry_token, buf);
 231                         arg_entry_token_type = ARG_ENTRY_TOKEN_LITERAL;
 232                 } else if (sd_id128_is_null(arg_machine_id)) {
 233                         _cleanup_free_ char *id = NULL, *image_id = NULL;
 234
 235                         r = parse_os_release(NULL,
 236                                              "IMAGE_ID", &image_id,
 237                                              "ID", &id);
 238                         if (r < 0)
 239                                 return log_error_errno(r, "Failed to load /etc/os-release: %m");
 240
 241                         if (!isempty(image_id)) {
 242                                 free_and_replace(arg_entry_token, image_id);
 243                                 arg_entry_token_type = ARG_ENTRY_TOKEN_OS_IMAGE_ID;
 244                         } else if (!isempty(id)) {
 245                                 free_and_replace(arg_entry_token, id);
 246                                 arg_entry_token_type = ARG_ENTRY_TOKEN_OS_ID;
 247                         } else
 248                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "No machine ID set, and /etc/os-release carries no ID=/IMAGE_ID= fields.");
 249                 } else {
 250                         r = free_and_strdup_warn(&arg_entry_token, SD_ID128_TO_STRING(arg_machine_id));
 251                         if (r < 0)
 252                                 return r;
 253
 254                         arg_entry_token_type = ARG_ENTRY_TOKEN_MACHINE_ID;
 255                 }
 256
 257                 break;
 258         }
 259
 260         case ARG_ENTRY_TOKEN_MACHINE_ID:
 261                 if (sd_id128_is_null(arg_machine_id))
 262                         return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "No machine ID set.");
 263
 264                 r = free_and_strdup_warn(&arg_entry_token, SD_ID128_TO_STRING(arg_machine_id));
 265                 if (r < 0)
 266                         return r;
 267
 268                 break;
 269
 270         case ARG_ENTRY_TOKEN_OS_IMAGE_ID: {
 271                 _cleanup_free_ char *buf = NULL;
 272
 273                 r = parse_os_release(NULL, "IMAGE_ID", &buf);
 274                 if (r < 0)
 275                         return log_error_errno(r, "Failed to load /etc/os-release: %m");
 276
 277                 if (isempty(buf))
 278                         return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "IMAGE_ID= field not set in /etc/os-release.");
 279
 280                 free_and_replace(arg_entry_token, buf);
 281                 break;
 282         }
 283
 284         case ARG_ENTRY_TOKEN_OS_ID: {
 285                 _cleanup_free_ char *buf = NULL;
 286
 287                 r = parse_os_release(NULL, "ID", &buf);
 288                 if (r < 0)
 289                         return log_error_errno(r, "Failed to load /etc/os-release: %m");
 290
 291                 if (isempty(buf))
 292                         return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "ID= field not set in /etc/os-release.");
 293
 294                 free_and_replace(arg_entry_token, buf);
 295                 break;
 296         }
 297
 298         case ARG_ENTRY_TOKEN_LITERAL:
 299                 assert(!isempty(arg_entry_token)); /* already filled in by command line parser */
 300                 break;
 301         }
 302
 303         if (isempty(arg_entry_token) || !string_is_safe(arg_entry_token))
 304                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Selected entry token not valid: %s", arg_entry_token);
 305
 306         log_debug("Using entry token: %s", arg_entry_token);
 307         return 0;
 308 }
 309
 310 static bool use_boot_loader_spec_type1(void) {
 311         /* If the layout is not specified, or if it is set explicitly to "bls" we assume Boot Loader
 312          * Specification Type #1 is the chosen format for our boot loader entries */
 313         return !arg_install_layout || streq(arg_install_layout, "bls");
 314 }
 315
 316 static int settle_make_entry_directory(void) {
 317         int r;
 318
 319         r = load_etc_machine_id();
 320         if (r < 0)
 321                 return r;
 322
 323         r = load_etc_machine_info();
 324         if (r < 0)
 325                 return r;
 326
 327         r = load_etc_kernel_install_conf();
 328         if (r < 0)
 329                 return r;
 330
 331         r = settle_entry_token();
 332         if (r < 0)
 333                 return r;
 334
 335         bool layout_type1 = use_boot_loader_spec_type1();
 336         if (arg_make_entry_directory < 0) { /* Automatic mode */
 337                 if (layout_type1) {
 338                         if (arg_entry_token == ARG_ENTRY_TOKEN_MACHINE_ID) {
 339                                 r = path_is_temporary_fs("/etc/machine-id");
 340                                 if (r < 0)
 341                                         return log_debug_errno(r, "Couldn't determine whether /etc/machine-id is on a temporary file system: %m");
 342
 343                                 arg_make_entry_directory = r == 0;
 344                         } else
 345                                 arg_make_entry_directory = true;
 346                 } else
 347                         arg_make_entry_directory = false;
 348         }
 349
 350         if (arg_make_entry_directory > 0 && !layout_type1)
 351                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 352                                        "KERNEL_INSTALL_LAYOUT=%s is configured, but Boot Loader Specification Type #1 entry directory creation was requested.",
 353                                        arg_install_layout);
 354
 355         return 0;
 356 }
 357
 358 /* search for "#### LoaderInfo: systemd-boot 218 ####" string inside the binary */
 359 static int get_file_version(int fd, char **v) {
 360         struct stat st;
 361         char *buf;
 362         const char *s, *e;
 363         char *x = NULL;
 364         int r;
 365
 366         assert(fd >= 0);
 367         assert(v);
 368
 369         if (fstat(fd, &st) < 0)
 370                 return log_error_errno(errno, "Failed to stat EFI binary: %m");
 371
 372         r = stat_verify_regular(&st);
 373         if (r < 0)
 374                 return log_error_errno(r, "EFI binary is not a regular file: %m");
 375
 376         if (st.st_size < 27 || file_offset_beyond_memory_size(st.st_size)) {
 377                 *v = NULL;
 378                 return 0;
 379         }
 380
 381         buf = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
 382         if (buf == MAP_FAILED)
 383                 return log_error_errno(errno, "Failed to memory map EFI binary: %m");
 384
 385         s = mempmem_safe(buf, st.st_size - 8, "#### LoaderInfo: ", 17);
 386         if (!s)
 387                 goto finish;
 388
 389         e = memmem_safe(s, st.st_size - (s - buf), " ####", 5);
 390         if (!e || e - s < 3) {
 391                 r = log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Malformed version string.");
 392                 goto finish;
 393         }
 394
 395         x = strndup(s, e - s);
 396         if (!x) {
 397                 r = log_oom();
 398                 goto finish;
 399         }
 400         r = 1;
 401
 402 finish:
 403         (void) munmap(buf, st.st_size);
 404         *v = x;
 405         return r;
 406 }
 407
 408 static int enumerate_binaries(const char *esp_path, const char *path, const char *prefix) {
 409         _cleanup_closedir_ DIR *d = NULL;
 410         const char *p;
 411         int c = 0, r;
 412
 413         assert(esp_path);
 414         assert(path);
 415
 416         p = prefix_roota(esp_path, path);
 417         d = opendir(p);
 418         if (!d) {
 419                 if (errno == ENOENT)
 420                         return 0;
 421
 422                 return log_error_errno(errno, "Failed to read \"%s\": %m", p);
 423         }
 424
 425         FOREACH_DIRENT(de, d, break) {
 426                 _cleanup_free_ char *v = NULL;
 427                 _cleanup_close_ int fd = -1;
 428
 429                 if (!endswith_no_case(de->d_name, ".efi"))
 430                         continue;
 431
 432                 if (prefix && !startswith_no_case(de->d_name, prefix))
 433                         continue;
 434
 435                 fd = openat(dirfd(d), de->d_name, O_RDONLY|O_CLOEXEC);
 436                 if (fd < 0)
 437                         return log_error_errno(errno, "Failed to open \"%s/%s\" for reading: %m", p, de->d_name);
 438
 439                 r = get_file_version(fd, &v);
 440                 if (r < 0)
 441                         return r;
 442                 if (r > 0)
 443                         printf("         File: %s/%s/%s (%s%s%s)\n", special_glyph(SPECIAL_GLYPH_TREE_RIGHT), path, de->d_name, ansi_highlight(), v, ansi_normal());
 444                 else
 445                         printf("         File: %s/%s/%s\n", special_glyph(SPECIAL_GLYPH_TREE_RIGHT), path, de->d_name);
 446
 447                 c++;
 448         }
 449
 450         return c;
 451 }
 452
 453 static int status_binaries(const char *esp_path, sd_id128_t partition) {
 454         int r;
 455
 456         printf("Available Boot Loaders on ESP:\n");
 457
 458         if (!esp_path) {
 459                 printf("          ESP: Cannot find or access mount point of ESP.\n\n");
 460                 return -ENOENT;
 461         }
 462
 463         printf("          ESP: %s", esp_path);
 464         if (!sd_id128_is_null(partition))
 465                 printf(" (/dev/disk/by-partuuid/" SD_ID128_UUID_FORMAT_STR ")", SD_ID128_FORMAT_VAL(partition));
 466         printf("\n");
 467
 468         r = enumerate_binaries(esp_path, "EFI/systemd", NULL);
 469         if (r < 0)
 470                 goto finish;
 471         if (r == 0)
 472                 log_info("systemd-boot not installed in ESP.");
 473
 474         r = enumerate_binaries(esp_path, "EFI/BOOT", "boot");
 475         if (r < 0)
 476                 goto finish;
 477         if (r == 0)
 478                 log_info("No default/fallback boot loader installed in ESP.");
 479
 480         r = 0;
 481
 482 finish:
 483         printf("\n");
 484         return r;
 485 }
 486
 487 static int print_efi_option(uint16_t id, bool in_order) {
 488         _cleanup_free_ char *title = NULL;
 489         _cleanup_free_ char *path = NULL;
 490         sd_id128_t partition;
 491         bool active;
 492         int r;
 493
 494         r = efi_get_boot_option(id, &title, &partition, &path, &active);
 495         if (r < 0)
 496                 return r;
 497
 498         /* print only configured entries with partition information */
 499         if (!path || sd_id128_is_null(partition))
 500                 return 0;
 501
 502         efi_tilt_backslashes(path);
 503
 504         printf("        Title: %s%s%s\n", ansi_highlight(), strna(title), ansi_normal());
 505         printf("           ID: 0x%04X\n", id);
 506         printf("       Status: %sactive%s\n", active ? "" : "in", in_order ? ", boot-order" : "");
 507         printf("    Partition: /dev/disk/by-partuuid/" SD_ID128_UUID_FORMAT_STR "\n",
 508                SD_ID128_FORMAT_VAL(partition));
 509         printf("         File: %s%s\n", special_glyph(SPECIAL_GLYPH_TREE_RIGHT), path);
 510         printf("\n");
 511
 512         return 0;
 513 }
 514
 515 static int status_variables(void) {
 516         _cleanup_free_ uint16_t *options = NULL, *order = NULL;
 517         int n_options, n_order;
 518
 519         n_options = efi_get_boot_options(&options);
 520         if (n_options == -ENOENT)
 521                 return log_error_errno(n_options,
 522                                        "Failed to access EFI variables, efivarfs"
 523                                        " needs to be available at /sys/firmware/efi/efivars/.");
 524         if (n_options < 0)
 525                 return log_error_errno(n_options, "Failed to read EFI boot entries: %m");
 526
 527         n_order = efi_get_boot_order(&order);
 528         if (n_order == -ENOENT)
 529                 n_order = 0;
 530         else if (n_order < 0)
 531                 return log_error_errno(n_order, "Failed to read EFI boot order: %m");
 532
 533         /* print entries in BootOrder first */
 534         printf("Boot Loaders Listed in EFI Variables:\n");
 535         for (int i = 0; i < n_order; i++)
 536                 print_efi_option(order[i], true);
 537
 538         /* print remaining entries */
 539         for (int i = 0; i < n_options; i++) {
 540                 for (int j = 0; j < n_order; j++)
 541                         if (options[i] == order[j])
 542                                 goto next_option;
 543
 544                 print_efi_option(options[i], false);
 545
 546         next_option:
 547                 continue;
 548         }
 549
 550         return 0;
 551 }
 552
 553 static int boot_entry_file_check(const char *root, const char *p) {
 554         _cleanup_free_ char *path = NULL;
 555
 556         path = path_join(root, p);
 557         if (!path)
 558                 return log_oom();
 559
 560         return RET_NERRNO(access(path, F_OK));
 561 }
 562
 563 static void boot_entry_file_list(const char *field, const char *root, const char *p, int *ret_status) {
 564         int status = boot_entry_file_check(root, p);
 565
 566         printf("%13s%s ", strempty(field), field ? ":" : " ");
 567         if (status < 0) {
 568                 errno = -status;
 569                 printf("%s%s%s (%m)\n", ansi_highlight_red(), p, ansi_normal());
 570         } else
 571                 printf("%s\n", p);
 572
 573         if (*ret_status == 0 && status < 0)
 574                 *ret_status = status;
 575 }
 576
 577 static const char* const boot_entry_type_table[_BOOT_ENTRY_TYPE_MAX] = {
 578         [BOOT_ENTRY_CONF]        = "Boot Loader Specification Type #1 (.conf)",
 579         [BOOT_ENTRY_UNIFIED]     = "Boot Loader Specification Type #2 (.efi)",
 580         [BOOT_ENTRY_LOADER]      = "Reported by Boot Loader",
 581         [BOOT_ENTRY_LOADER_AUTO] = "Automatic",
 582 };
 583
 584 DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(boot_entry_type, BootEntryType);
 585
 586 static int boot_entry_show(
 587                 const BootEntry *e,
 588                 bool show_as_default,
 589                 bool show_as_selected,
 590                 bool show_reported) {
 591
 592         int status = 0;
 593
 594         /* Returns 0 on success, negative on processing error, and positive if something is wrong with the
 595            boot entry itself. */
 596
 597         assert(e);
 598
 599         printf("         type: %s\n",
 600                boot_entry_type_to_string(e->type));
 601
 602         printf("        title: %s%s%s",
 603                ansi_highlight(), boot_entry_title(e), ansi_normal());
 604
 605         if (show_as_default)
 606                 printf(" %s(default)%s",
 607                        ansi_highlight_green(), ansi_normal());
 608
 609         if (show_as_selected)
 610                 printf(" %s(selected)%s",
 611                        ansi_highlight_magenta(), ansi_normal());
 612
 613         if (show_reported) {
 614                 if (e->type == BOOT_ENTRY_LOADER)
 615                         printf(" %s(reported/absent)%s",
 616                                ansi_highlight_red(), ansi_normal());
 617                 else if (!e->reported_by_loader && e->type != BOOT_ENTRY_LOADER_AUTO)
 618                         printf(" %s(not reported/new)%s",
 619                                ansi_highlight_green(), ansi_normal());
 620         }
 621
 622         putchar('\n');
 623
 624         if (e->id)
 625                 printf("           id: %s\n", e->id);
 626         if (e->path) {
 627                 _cleanup_free_ char *link = NULL;
 628
 629                 /* Let's urlify the link to make it easy to view in an editor, but only if it is a text
 630                  * file. Unified images are binary ELFs, and EFI variables are not pure text either. */
 631                 if (e->type == BOOT_ENTRY_CONF)
 632                         (void) terminal_urlify_path(e->path, NULL, &link);
 633
 634                 printf("       source: %s\n", link ?: e->path);
 635         }
 636         if (e->sort_key)
 637                 printf("     sort-key: %s\n", e->sort_key);
 638         if (e->version)
 639                 printf("      version: %s\n", e->version);
 640         if (e->machine_id)
 641                 printf("   machine-id: %s\n", e->machine_id);
 642         if (e->architecture)
 643                 printf(" architecture: %s\n", e->architecture);
 644         if (e->kernel)
 645                 boot_entry_file_list("linux", e->root, e->kernel, &status);
 646
 647         STRV_FOREACH(s, e->initrd)
 648                 boot_entry_file_list(s == e->initrd ? "initrd" : NULL,
 649                                      e->root,
 650                                      *s,
 651                                      &status);
 652
 653         if (!strv_isempty(e->options)) {
 654                 _cleanup_free_ char *t = NULL, *t2 = NULL;
 655                 _cleanup_strv_free_ char **ts = NULL;
 656
 657                 t = strv_join(e->options, " ");
 658                 if (!t)
 659                         return log_oom();
 660
 661                 ts = strv_split_newlines(t);
 662                 if (!ts)
 663                         return log_oom();
 664
 665                 t2 = strv_join(ts, "\n              ");
 666                 if (!t2)
 667                         return log_oom();
 668
 669                 printf("      options: %s\n", t2);
 670         }
 671
 672         if (e->device_tree)
 673                 boot_entry_file_list("devicetree", e->root, e->device_tree, &status);
 674
 675         STRV_FOREACH(s, e->device_tree_overlay)
 676                 boot_entry_file_list(s == e->device_tree_overlay ? "devicetree-overlay" : NULL,
 677                                      e->root,
 678                                      *s,
 679                                      &status);
 680
 681         return -status;
 682 }
 683
 684 static int status_entries(
 685                 const char *esp_path,
 686                 sd_id128_t esp_partition_uuid,
 687                 const char *xbootldr_path,
 688                 sd_id128_t xbootldr_partition_uuid) {
 689
 690         _cleanup_(boot_config_free) BootConfig config = BOOT_CONFIG_NULL;
 691         sd_id128_t dollar_boot_partition_uuid;
 692         const char *dollar_boot_path;
 693         int r;
 694
 695         assert(esp_path || xbootldr_path);
 696
 697         if (xbootldr_path) {
 698                 dollar_boot_path = xbootldr_path;
 699                 dollar_boot_partition_uuid = xbootldr_partition_uuid;
 700         } else {
 701                 dollar_boot_path = esp_path;
 702                 dollar_boot_partition_uuid = esp_partition_uuid;
 703         }
 704
 705         printf("Boot Loader Entries:\n"
 706                "        $BOOT: %s", dollar_boot_path);
 707         if (!sd_id128_is_null(dollar_boot_partition_uuid))
 708                 printf(" (/dev/disk/by-partuuid/" SD_ID128_UUID_FORMAT_STR ")",
 709                        SD_ID128_FORMAT_VAL(dollar_boot_partition_uuid));
 710         printf("\n\n");
 711
 712         r = boot_config_load(&config, esp_path, xbootldr_path);
 713         if (r < 0)
 714                 return r;
 715
 716         r = boot_config_select_special_entries(&config);
 717         if (r < 0)
 718                 return r;
 719
 720         if (config.default_entry < 0)
 721                 printf("%zu entries, no entry could be determined as default.\n", config.n_entries);
 722         else {
 723                 printf("Default Boot Loader Entry:\n");
 724
 725                 r = boot_entry_show(
 726                                 boot_config_default_entry(&config),
 727                                 /* show_as_default= */ false,
 728                                 /* show_as_selected= */ false,
 729                                 /* show_discovered= */ false);
 730                 if (r > 0)
 731                         /* < 0 is already logged by the function itself, let's just emit an extra warning if
 732                            the default entry is broken */
 733                         printf("\nWARNING: default boot entry is broken\n");
 734         }
 735
 736         return 0;
 737 }
 738
 739 static int compare_product(const char *a, const char *b) {
 740         size_t x, y;
 741
 742         assert(a);
 743         assert(b);
 744
 745         x = strcspn(a, " ");
 746         y = strcspn(b, " ");
 747         if (x != y)
 748                 return x < y ? -1 : x > y ? 1 : 0;
 749
 750         return strncmp(a, b, x);
 751 }
 752
 753 static int compare_version(const char *a, const char *b) {
 754         assert(a);
 755         assert(b);
 756
 757         a += strcspn(a, " ");
 758         a += strspn(a, " ");
 759         b += strcspn(b, " ");
 760         b += strspn(b, " ");
 761
 762         return strverscmp_improved(a, b);
 763 }
 764
 765 static int version_check(int fd_from, const char *from, int fd_to, const char *to) {
 766         _cleanup_free_ char *a = NULL, *b = NULL;
 767         int r;
 768
 769         assert(fd_from >= 0);
 770         assert(from);
 771         assert(fd_to >= 0);
 772         assert(to);
 773
 774         r = get_file_version(fd_from, &a);
 775         if (r < 0)
 776                 return r;
 777         if (r == 0)
 778                 return log_notice_errno(SYNTHETIC_ERRNO(EREMOTE),
 779                                        "Source file \"%s\" does not carry version information!",
 780                                        from);
 781
 782         r = get_file_version(fd_to, &b);
 783         if (r < 0)
 784                 return r;
 785         if (r == 0 || compare_product(a, b) != 0)
 786                 return log_notice_errno(SYNTHETIC_ERRNO(EREMOTE),
 787                                         "Skipping \"%s\", since it's owned by another boot loader.",
 788                                         to);
 789
 790         r = compare_version(a, b);
 791         if (r < 0)
 792                 return log_warning_errno(SYNTHETIC_ERRNO(ESTALE), "Skipping \"%s\", since newer boot loader version in place already.", to);
 793         else if (r == 0)
 794                 return log_info_errno(SYNTHETIC_ERRNO(ESTALE), "Skipping \"%s\", since same boot loader version in place already.", to);
 795
 796         return 0;
 797 }
 798
 799 static int copy_file_with_version_check(const char *from, const char *to, bool force) {
 800         _cleanup_close_ int fd_from = -1, fd_to = -1;
 801         _cleanup_free_ char *t = NULL;
 802         int r;
 803
 804         fd_from = open(from, O_RDONLY|O_CLOEXEC|O_NOCTTY);
 805         if (fd_from < 0)
 806                 return log_error_errno(errno, "Failed to open \"%s\" for reading: %m", from);
 807
 808         if (!force) {
 809                 fd_to = open(to, O_RDONLY|O_CLOEXEC|O_NOCTTY);
 810                 if (fd_to < 0) {
 811                         if (errno != ENOENT)
 812                                 return log_error_errno(errno, "Failed to open \"%s\" for reading: %m", to);
 813                 } else {
 814                         r = version_check(fd_from, from, fd_to, to);
 815                         if (r < 0)
 816                                 return r;
 817
 818                         if (lseek(fd_from, 0, SEEK_SET) == (off_t) -1)
 819                                 return log_error_errno(errno, "Failed to seek in \"%s\": %m", from);
 820
 821                         fd_to = safe_close(fd_to);
 822                 }
 823         }
 824
 825         r = tempfn_random(to, NULL, &t);
 826         if (r < 0)
 827                 return log_oom();
 828
 829         RUN_WITH_UMASK(0000) {
 830                 fd_to = open(t, O_WRONLY|O_CREAT|O_CLOEXEC|O_EXCL|O_NOFOLLOW, 0644);
 831                 if (fd_to < 0)
 832                         return log_error_errno(errno, "Failed to open \"%s\" for writing: %m", t);
 833         }
 834
 835         r = copy_bytes(fd_from, fd_to, UINT64_MAX, COPY_REFLINK);
 836         if (r < 0) {
 837                 (void) unlink(t);
 838                 return log_error_errno(r, "Failed to copy data from \"%s\" to \"%s\": %m", from, t);
 839         }
 840
 841         (void) copy_times(fd_from, fd_to, 0);
 842
 843         r = fsync_full(fd_to);
 844         if (r < 0) {
 845                 (void) unlink_noerrno(t);
 846                 return log_error_errno(r, "Failed to copy data from \"%s\" to \"%s\": %m", from, t);
 847         }
 848
 849         if (renameat(AT_FDCWD, t, AT_FDCWD, to) < 0) {
 850                 (void) unlink_noerrno(t);
 851                 return log_error_errno(errno, "Failed to rename \"%s\" to \"%s\": %m", t, to);
 852         }
 853
 854         log_info("Copied \"%s\" to \"%s\".", from, to);
 855
 856         return 0;
 857 }
 858
 859 static int mkdir_one(const char *prefix, const char *suffix) {
 860         _cleanup_free_ char *p = NULL;
 861
 862         p = path_join(prefix, suffix);
 863         if (mkdir(p, 0700) < 0) {
 864                 if (errno != EEXIST)
 865                         return log_error_errno(errno, "Failed to create \"%s\": %m", p);
 866         } else
 867                 log_info("Created \"%s\".", p);
 868
 869         return 0;
 870 }
 871
 872 static const char *const esp_subdirs[] = {
 873         /* The directories to place in the ESP */
 874         "EFI",
 875         "EFI/systemd",
 876         "EFI/BOOT",
 877         "loader",
 878         NULL
 879 };
 880
 881 static const char *const dollar_boot_subdirs[] = {
 882         /* The directories to place in the XBOOTLDR partition or the ESP, depending what exists */
 883         "loader",
 884         "loader/entries",  /* Type #1 entries */
 885         "EFI",
 886         "EFI/Linux",       /* Type #2 entries */
 887         NULL
 888 };
 889
 890 static int create_subdirs(const char *root, const char * const *subdirs) {
 891         int r;
 892
 893         STRV_FOREACH(i, subdirs) {
 894                 r = mkdir_one(root, *i);
 895                 if (r < 0)
 896                         return r;
 897         }
 898
 899         return 0;
 900 }
 901
 902 static int copy_one_file(const char *esp_path, const char *name, bool force) {
 903         const char *e;
 904         char *p, *q, *dest_name, *s;
 905         int r;
 906
 907         dest_name = strdupa_safe(name);
 908         s = endswith_no_case(dest_name, ".signed");
 909         if (s)
 910                 *s = 0;
 911
 912         p = strjoina(BOOTLIBDIR "/", name);
 913         q = strjoina(esp_path, "/EFI/systemd/", dest_name);
 914         r = copy_file_with_version_check(p, q, force);
 915
 916         e = startswith(dest_name, "systemd-boot");
 917         if (e) {
 918                 int k;
 919                 char *v;
 920
 921                 /* Create the EFI default boot loader name (specified for removable devices) */
 922                 v = strjoina(esp_path, "/EFI/BOOT/BOOT", e);
 923                 ascii_strupper(strrchr(v, '/') + 1);
 924
 925                 k = copy_file_with_version_check(p, v, force);
 926                 if (k < 0 && r == 0)
 927                         r = k;
 928         }
 929
 930         return r;
 931 }
 932
 933 static int install_binaries(const char *esp_path, bool force) {
 934         _cleanup_closedir_ DIR *d = NULL;
 935         int r = 0;
 936
 937         d = opendir(BOOTLIBDIR);
 938         if (!d)
 939                 return log_error_errno(errno, "Failed to open \""BOOTLIBDIR"\": %m");
 940
 941         FOREACH_DIRENT(de, d, return log_error_errno(errno, "Failed to read \""BOOTLIBDIR"\": %m")) {
 942                 int k;
 943
 944                 if (!endswith_no_case(de->d_name, ".efi") && !endswith_no_case(de->d_name, ".efi.signed"))
 945                         continue;
 946
 947                 /* skip the .efi file, if there's a .signed version of it */
 948                 if (endswith_no_case(de->d_name, ".efi")) {
 949                         _cleanup_free_ const char *s = strjoin(de->d_name, ".signed");
 950                         if (!s)
 951                                 return log_oom();
 952                         if (faccessat(dirfd(d), s, F_OK, 0) >= 0)
 953                                 continue;
 954                 }
 955
 956                 k = copy_one_file(esp_path, de->d_name, force);
 957                 /* Don't propagate an error code if no update necessary, installed version already equal or
 958                  * newer version, or other boot loader in place. */
 959                 if (arg_graceful && IN_SET(k, -ESTALE, -EREMOTE))
 960                         continue;
 961                 if (k < 0 && r == 0)
 962                         r = k;
 963         }
 964
 965         return r;
 966 }
 967
 968 static bool same_entry(uint16_t id, sd_id128_t uuid, const char *path) {
 969         _cleanup_free_ char *opath = NULL;
 970         sd_id128_t ouuid;
 971         int r;
 972
 973         r = efi_get_boot_option(id, NULL, &ouuid, &opath, NULL);
 974         if (r < 0)
 975                 return false;
 976         if (!sd_id128_equal(uuid, ouuid))
 977                 return false;
 978
 979         /* Some motherboards convert the path to uppercase under certain circumstances
 980          * (e.g. after booting into the Boot Menu in the ASUS ROG STRIX B350-F GAMING),
 981          * so use case-insensitive checking */
 982         if (!strcaseeq_ptr(path, opath))
 983                 return false;
 984
 985         return true;
 986 }
 987
 988 static int find_slot(sd_id128_t uuid, const char *path, uint16_t *id) {
 989         _cleanup_free_ uint16_t *options = NULL;
 990         int n, i;
 991
 992         n = efi_get_boot_options(&options);
 993         if (n < 0)
 994                 return n;
 995
 996         /* find already existing systemd-boot entry */
 997         for (i = 0; i < n; i++)
 998                 if (same_entry(options[i], uuid, path)) {
 999                         *id = options[i];
1000                         return 1;
1001                 }
1002
1003         /* find free slot in the sorted BootXXXX variable list */
1004         for (i = 0; i < n; i++)
1005                 if (i != options[i]) {
1006                         *id = i;
1007                         return 0;
1008                 }
1009
1010         /* use the next one */
1011         if (i == 0xffff)
1012                 return -ENOSPC;
1013         *id = i;
1014         return 0;
1015 }
1016
1017 static int insert_into_order(uint16_t slot, bool first) {
1018         _cleanup_free_ uint16_t *order = NULL;
1019         uint16_t *t;
1020         int n;
1021
1022         n = efi_get_boot_order(&order);
1023         if (n <= 0)
1024                 /* no entry, add us */
1025                 return efi_set_boot_order(&slot, 1);
1026
1027         /* are we the first and only one? */
1028         if (n == 1 && order[0] == slot)
1029                 return 0;
1030
1031         /* are we already in the boot order? */
1032         for (int i = 0; i < n; i++) {
1033                 if (order[i] != slot)
1034                         continue;
1035
1036                 /* we do not require to be the first one, all is fine */
1037                 if (!first)
1038                         return 0;
1039
1040                 /* move us to the first slot */
1041                 memmove(order + 1, order, i * sizeof(uint16_t));
1042                 order[0] = slot;
1043                 return efi_set_boot_order(order, n);
1044         }
1045
1046         /* extend array */
1047         t = reallocarray(order, n + 1, sizeof(uint16_t));
1048         if (!t)
1049                 return -ENOMEM;
1050         order = t;
1051
1052         /* add us to the top or end of the list */
1053         if (first) {
1054                 memmove(order + 1, order, n * sizeof(uint16_t));
1055                 order[0] = slot;
1056         } else
1057                 order[n] = slot;
1058
1059         return efi_set_boot_order(order, n + 1);
1060 }
1061
1062 static int remove_from_order(uint16_t slot) {
1063         _cleanup_free_ uint16_t *order = NULL;
1064         int n;
1065
1066         n = efi_get_boot_order(&order);
1067         if (n <= 0)
1068                 return n;
1069
1070         for (int i = 0; i < n; i++) {
1071                 if (order[i] != slot)
1072                         continue;
1073
1074                 if (i + 1 < n)
1075                         memmove(order + i, order + i+1, (n - i) * sizeof(uint16_t));
1076                 return efi_set_boot_order(order, n - 1);
1077         }
1078
1079         return 0;
1080 }
1081
1082 static int install_variables(const char *esp_path,
1083                              uint32_t part, uint64_t pstart, uint64_t psize,
1084                              sd_id128_t uuid, const char *path,
1085                              bool first) {
1086         const char *p;
1087         uint16_t slot;
1088         int r;
1089
1090         if (!is_efi_boot()) {
1091                 log_warning("Not booted with EFI, skipping EFI variable setup.");
1092                 return 0;
1093         }
1094
1095         p = prefix_roota(esp_path, path);
1096         if (access(p, F_OK) < 0) {
1097                 if (errno == ENOENT)
1098                         return 0;
1099
1100                 return log_error_errno(errno, "Cannot access \"%s\": %m", p);
1101         }
1102
1103         r = find_slot(uuid, path, &slot);
1104         if (r < 0)
1105                 return log_error_errno(r,
1106                                        r == -ENOENT ?
1107                                        "Failed to access EFI variables. Is the \"efivarfs\" filesystem mounted?" :
1108                                        "Failed to determine current boot order: %m");
1109
1110         if (first || r == 0) {
1111                 r = efi_add_boot_option(slot, "Linux Boot Manager",
1112                                         part, pstart, psize,
1113                                         uuid, path);
1114                 if (r < 0)
1115                         return log_error_errno(r, "Failed to create EFI Boot variable entry: %m");
1116
1117                 log_info("Created EFI boot entry \"Linux Boot Manager\".");
1118         }
1119
1120         return insert_into_order(slot, first);
1121 }
1122
1123 static int remove_boot_efi(const char *esp_path) {
1124         _cleanup_closedir_ DIR *d = NULL;
1125         const char *p;
1126         int r, c = 0;
1127
1128         p = prefix_roota(esp_path, "/EFI/BOOT");
1129         d = opendir(p);
1130         if (!d) {
1131                 if (errno == ENOENT)
1132                         return 0;
1133
1134                 return log_error_errno(errno, "Failed to open directory \"%s\": %m", p);
1135         }
1136
1137         FOREACH_DIRENT(de, d, break) {
1138                 _cleanup_close_ int fd = -1;
1139                 _cleanup_free_ char *v = NULL;
1140
1141                 if (!endswith_no_case(de->d_name, ".efi"))
1142                         continue;
1143
1144                 if (!startswith_no_case(de->d_name, "boot"))
1145                         continue;
1146
1147                 fd = openat(dirfd(d), de->d_name, O_RDONLY|O_CLOEXEC);
1148                 if (fd < 0)
1149                         return log_error_errno(errno, "Failed to open \"%s/%s\" for reading: %m", p, de->d_name);
1150
1151                 r = get_file_version(fd, &v);
1152                 if (r < 0)
1153                         return r;
1154                 if (r > 0 && startswith(v, "systemd-boot ")) {
1155                         r = unlinkat(dirfd(d), de->d_name, 0);
1156                         if (r < 0)
1157                                 return log_error_errno(errno, "Failed to remove \"%s/%s\": %m", p, de->d_name);
1158
1159                         log_info("Removed \"%s/%s\".", p, de->d_name);
1160                 }
1161
1162                 c++;
1163         }
1164
1165         return c;
1166 }
1167
1168 static int rmdir_one(const char *prefix, const char *suffix) {
1169         const char *p;
1170
1171         p = prefix_roota(prefix, suffix);
1172         if (rmdir(p) < 0) {
1173                 bool ignore = IN_SET(errno, ENOENT, ENOTEMPTY);
1174
1175                 log_full_errno(ignore ? LOG_DEBUG : LOG_ERR, errno,
1176                                "Failed to remove directory \"%s\": %m", p);
1177                 if (!ignore)
1178                         return -errno;
1179         } else
1180                 log_info("Removed \"%s\".", p);
1181
1182         return 0;
1183 }
1184
1185 static int remove_subdirs(const char *root, const char *const *subdirs) {
1186         int r, q;
1187
1188         /* We use recursion here to destroy the directories in reverse order. Which should be safe given how
1189          * short the array is. */
1190
1191         if (!subdirs[0]) /* A the end of the list */
1192                 return 0;
1193
1194         r = remove_subdirs(root, subdirs + 1);
1195         q = rmdir_one(root, subdirs[0]);
1196
1197         return r < 0 ? r : q;
1198 }
1199
1200 static int remove_entry_directory(const char *root) {
1201         assert(root);
1202         assert(arg_make_entry_directory >= 0);
1203
1204         if (!arg_make_entry_directory || !arg_entry_token)
1205                 return 0;
1206
1207         return rmdir_one(root, arg_entry_token);
1208 }
1209
1210 static int remove_binaries(const char *esp_path) {
1211         const char *p;
1212         int r, q;
1213
1214         p = prefix_roota(esp_path, "/EFI/systemd");
1215         r = rm_rf(p, REMOVE_ROOT|REMOVE_PHYSICAL);
1216
1217         q = remove_boot_efi(esp_path);
1218         if (q < 0 && r == 0)
1219                 r = q;
1220
1221         return r;
1222 }
1223
1224 static int remove_file(const char *root, const char *file) {
1225         const char *p;
1226
1227         assert(root);
1228         assert(file);
1229
1230         p = prefix_roota(root, file);
1231         if (unlink(p) < 0) {
1232                 log_full_errno(errno == ENOENT ? LOG_DEBUG : LOG_ERR, errno,
1233                                "Failed to unlink file \"%s\": %m", p);
1234
1235                 return errno == ENOENT ? 0 : -errno;
1236         }
1237
1238         log_info("Removed \"%s\".", p);
1239         return 1;
1240 }
1241
1242 static int remove_variables(sd_id128_t uuid, const char *path, bool in_order) {
1243         uint16_t slot;
1244         int r;
1245
1246         if (!is_efi_boot())
1247                 return 0;
1248
1249         r = find_slot(uuid, path, &slot);
1250         if (r != 1)
1251                 return 0;
1252
1253         r = efi_remove_boot_option(slot);
1254         if (r < 0)
1255                 return r;
1256
1257         if (in_order)
1258                 return remove_from_order(slot);
1259
1260         return 0;
1261 }
1262
1263 static int remove_loader_variables(void) {
1264         int r = 0;
1265
1266         /* Remove all persistent loader variables we define */
1267
1268         FOREACH_STRING(var,
1269                        EFI_LOADER_VARIABLE(LoaderConfigTimeout),
1270                        EFI_LOADER_VARIABLE(LoaderConfigTimeoutOneShot),
1271                        EFI_LOADER_VARIABLE(LoaderEntryDefault),
1272                        EFI_LOADER_VARIABLE(LoaderEntryOneShot),
1273                        EFI_LOADER_VARIABLE(LoaderSystemToken)){
1274
1275                 int q;
1276
1277                 q = efi_set_variable(var, NULL, 0);
1278                 if (q == -ENOENT)
1279                         continue;
1280                 if (q < 0) {
1281                         log_warning_errno(q, "Failed to remove EFI variable %s: %m", var);
1282                         if (r >= 0)
1283                                 r = q;
1284                 } else
1285                         log_info("Removed EFI variable %s.", var);
1286         }
1287
1288         return r;
1289 }
1290
1291 static int install_loader_config(const char *esp_path) {
1292         _cleanup_(unlink_and_freep) char *t = NULL;
1293         _cleanup_fclose_ FILE *f = NULL;
1294         const char *p;
1295         int r;
1296
1297         assert(arg_make_entry_directory >= 0);
1298
1299         p = prefix_roota(esp_path, "/loader/loader.conf");
1300         if (access(p, F_OK) >= 0) /* Silently skip creation if the file already exists (early check) */
1301                 return 0;
1302
1303         r = fopen_tmpfile_linkable(p, O_WRONLY|O_CLOEXEC, &t, &f);
1304         if (r < 0)
1305                 return log_error_errno(r, "Failed to open \"%s\" for writing: %m", p);
1306
1307         fprintf(f, "#timeout 3\n"
1308                    "#console-mode keep\n");
1309
1310         if (arg_make_entry_directory) {
1311                 assert(arg_entry_token);
1312                 fprintf(f, "default %s-*\n", arg_entry_token);
1313         }
1314
1315         r = flink_tmpfile(f, t, p);
1316         if (r == -EEXIST)
1317                 return 0; /* Silently skip creation if the file exists now (recheck) */
1318         if (r < 0)
1319                 return log_error_errno(r, "Failed to move \"%s\" into place: %m", p);
1320
1321         t = mfree(t);
1322         return 1;
1323 }
1324
1325 static int install_loader_specification(const char *root) {
1326         _cleanup_(unlink_and_freep) char *t = NULL;
1327         _cleanup_fclose_ FILE *f = NULL;
1328         _cleanup_free_ char *p = NULL;
1329         int r;
1330
1331         p = path_join(root, "/loader/entries.srel");
1332         if (!p)
1333                 return log_oom();
1334
1335         if (access(p, F_OK) >= 0) /* Silently skip creation if the file already exists (early check) */
1336                 return 0;
1337
1338         r = fopen_tmpfile_linkable(p, O_WRONLY|O_CLOEXEC, &t, &f);
1339         if (r < 0)
1340                 return log_error_errno(r, "Failed to open \"%s\" for writing: %m", p);
1341
1342         fprintf(f, "type1\n");
1343
1344         r = flink_tmpfile(f, t, p);
1345         if (r == -EEXIST)
1346                 return 0; /* Silently skip creation if the file exists now (recheck) */
1347         if (r < 0)
1348                 return log_error_errno(r, "Failed to move \"%s\" into place: %m", p);
1349
1350         t = mfree(t);
1351         return 1;
1352 }
1353
1354 static int install_entry_directory(const char *root) {
1355         assert(root);
1356         assert(arg_make_entry_directory >= 0);
1357
1358         if (!arg_make_entry_directory)
1359                 return 0;
1360
1361         assert(arg_entry_token);
1362         return mkdir_one(root, arg_entry_token);
1363 }
1364
1365 static int install_entry_token(void) {
1366         int r;
1367
1368         assert(arg_make_entry_directory >= 0);
1369         assert(arg_entry_token);
1370
1371         /* Let's save the used entry token in /etc/kernel/entry-token if we used it to create the entry
1372          * directory, or if anything else but the machine ID */
1373
1374         if (!arg_make_entry_directory && arg_entry_token_type == ARG_ENTRY_TOKEN_MACHINE_ID)
1375                 return 0;
1376
1377         r = write_string_file("/etc/kernel/entry-token", arg_entry_token, WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_ATOMIC|WRITE_STRING_FILE_MKDIR_0755);
1378         if (r < 0)
1379                 return log_error_errno(r, "Failed to write entry token '%s' to /etc/kernel/entry-token", arg_entry_token);
1380
1381         return 0;
1382 }
1383
1384 static int help(int argc, char *argv[], void *userdata) {
1385         _cleanup_free_ char *link = NULL;
1386         int r;
1387
1388         r = terminal_urlify_man("bootctl", "1", &link);
1389         if (r < 0)
1390                 return log_oom();
1391
1392         printf("%1$s  [OPTIONS...] COMMAND ...\n"
1393                "\n%5$sControl EFI firmware boot settings and manage boot loader.%6$s\n"
1394                "\n%3$sGeneric EFI Firmware/Boot Loader Commands:%4$s\n"
1395                "  status              Show status of installed boot loader and EFI variables\n"
1396                "  reboot-to-firmware [BOOL]\n"
1397                "                      Query or set reboot-to-firmware EFI flag\n"
1398                "  systemd-efi-options [STRING]\n"
1399                "                      Query or set system options string in EFI variable\n"
1400                "\n%3$sBoot Loader Specification Commands:%4$s\n"
1401                "  list                List boot loader entries\n"
1402                "  set-default ID      Set default boot loader entry\n"
1403                "  set-oneshot ID      Set default boot loader entry, for next boot only\n"
1404                "  set-timeout SECONDS Set the menu timeout\n"
1405                "  set-timeout-oneshot SECONDS\n"
1406                "                      Set the menu timeout for the next boot only\n"
1407                "\n%3$ssystemd-boot Commands:%4$s\n"
1408                "  install             Install systemd-boot to the ESP and EFI variables\n"
1409                "  update              Update systemd-boot in the ESP and EFI variables\n"
1410                "  remove              Remove systemd-boot from the ESP and EFI variables\n"
1411                "  is-installed        Test whether systemd-boot is installed in the ESP\n"
1412                "  random-seed         Initialize random seed in ESP and EFI variables\n"
1413                "\n%3$sOptions:%4$s\n"
1414                "  -h --help            Show this help\n"
1415                "     --version         Print version\n"
1416                "     --esp-path=PATH   Path to the EFI System Partition (ESP)\n"
1417                "     --boot-path=PATH  Path to the $BOOT partition\n"
1418                "  -p --print-esp-path  Print path to the EFI System Partition\n"
1419                "  -x --print-boot-path Print path to the $BOOT partition\n"
1420                "     --no-variables    Don't touch EFI variables\n"
1421                "     --no-pager        Do not pipe output into a pager\n"
1422                "     --graceful        Don't fail when the ESP cannot be found or EFI\n"
1423                "                       variables cannot be written\n"
1424                "     --make-entry-directory=yes|no|auto\n"
1425                "                       Create $BOOT/ENTRY-TOKEN/ directory\n"
1426                "     --entry-token=machine-id|os-id|os-image-id|auto|literal:…\n"
1427                "                       Entry token to use for this installation\n"
1428                "     --json=pretty|short|off\n"
1429                "                       Generate JSON output\n"
1430                "\nSee the %2$s for details.\n",
1431                program_invocation_short_name,
1432                link,
1433                ansi_underline(),
1434                ansi_normal(),
1435                ansi_highlight(),
1436                ansi_normal());
1437
1438         return 0;
1439 }
1440
1441 static int parse_argv(int argc, char *argv[]) {
1442         enum {
1443                 ARG_ESP_PATH = 0x100,
1444                 ARG_BOOT_PATH,
1445                 ARG_VERSION,
1446                 ARG_NO_VARIABLES,
1447                 ARG_NO_PAGER,
1448                 ARG_GRACEFUL,
1449                 ARG_MAKE_ENTRY_DIRECTORY,
1450                 ARG_ENTRY_TOKEN,
1451                 ARG_JSON,
1452         };
1453
1454         static const struct option options[] = {
1455                 { "help",                      no_argument,       NULL, 'h'                           },
1456                 { "version",                   no_argument,       NULL, ARG_VERSION                   },
1457                 { "esp-path",                  required_argument, NULL, ARG_ESP_PATH                  },
1458                 { "path",                      required_argument, NULL, ARG_ESP_PATH                  }, /* Compatibility alias */
1459                 { "boot-path",                 required_argument, NULL, ARG_BOOT_PATH                 },
1460                 { "print-esp-path",            no_argument,       NULL, 'p'                           },
1461                 { "print-path",                no_argument,       NULL, 'p'                           }, /* Compatibility alias */
1462                 { "print-boot-path",           no_argument,       NULL, 'x'                           },
1463                 { "no-variables",              no_argument,       NULL, ARG_NO_VARIABLES              },
1464                 { "no-pager",                  no_argument,       NULL, ARG_NO_PAGER                  },
1465                 { "graceful",                  no_argument,       NULL, ARG_GRACEFUL                  },
1466                 { "make-entry-directory",      required_argument, NULL, ARG_MAKE_ENTRY_DIRECTORY      },
1467                 { "make-machine-id-directory", required_argument, NULL, ARG_MAKE_ENTRY_DIRECTORY      }, /* Compatibility alias */
1468                 { "entry-token",               required_argument, NULL, ARG_ENTRY_TOKEN               },
1469                 { "json",                      required_argument, NULL, ARG_JSON                      },
1470                 {}
1471         };
1472
1473         int c, r;
1474         bool b;
1475
1476         assert(argc >= 0);
1477         assert(argv);
1478
1479         while ((c = getopt_long(argc, argv, "hpx", options, NULL)) >= 0)
1480                 switch (c) {
1481
1482                 case 'h':
1483                         help(0, NULL, NULL);
1484                         return 0;
1485
1486                 case ARG_VERSION:
1487                         return version();
1488
1489                 case ARG_ESP_PATH:
1490                         r = free_and_strdup(&arg_esp_path, optarg);
1491                         if (r < 0)
1492                                 return log_oom();
1493                         break;
1494
1495                 case ARG_BOOT_PATH:
1496                         r = free_and_strdup(&arg_xbootldr_path, optarg);
1497                         if (r < 0)
1498                                 return log_oom();
1499                         break;
1500
1501                 case 'p':
1502                         if (arg_print_dollar_boot_path)
1503                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1504                                                        "--print-boot-path/-x cannot be combined with --print-esp-path/-p");
1505                         arg_print_esp_path = true;
1506                         break;
1507
1508                 case 'x':
1509                         if (arg_print_esp_path)
1510                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1511                                                        "--print-boot-path/-x cannot be combined with --print-esp-path/-p");
1512                         arg_print_dollar_boot_path = true;
1513                         break;
1514
1515                 case ARG_NO_VARIABLES:
1516                         arg_touch_variables = false;
1517                         break;
1518
1519                 case ARG_NO_PAGER:
1520                         arg_pager_flags |= PAGER_DISABLE;
1521                         break;
1522
1523                 case ARG_GRACEFUL:
1524                         arg_graceful = true;
1525                         break;
1526
1527                 case ARG_ENTRY_TOKEN: {
1528                         const char *e;
1529
1530                         if (streq(optarg, "machine-id")) {
1531                                 arg_entry_token_type = ARG_ENTRY_TOKEN_MACHINE_ID;
1532                                 arg_entry_token = mfree(arg_entry_token);
1533                         } else if (streq(optarg, "os-image-id")) {
1534                                 arg_entry_token_type = ARG_ENTRY_TOKEN_OS_IMAGE_ID;
1535                                 arg_entry_token = mfree(arg_entry_token);
1536                         } else if (streq(optarg, "os-id")) {
1537                                 arg_entry_token_type = ARG_ENTRY_TOKEN_OS_ID;
1538                                 arg_entry_token = mfree(arg_entry_token);
1539                         } else if ((e = startswith(optarg, "literal:"))) {
1540                                 arg_entry_token_type = ARG_ENTRY_TOKEN_LITERAL;
1541
1542                                 r = free_and_strdup_warn(&arg_entry_token, e);
1543                                 if (r < 0)
1544                                         return r;
1545                         } else
1546                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1547                                                        "Unexpected parameter for --entry-token=: %s", optarg);
1548
1549                         break;
1550                 }
1551
1552                 case ARG_MAKE_ENTRY_DIRECTORY:
1553                         if (streq(optarg, "auto"))  /* retained for backwards compatibility */
1554                                 arg_make_entry_directory = -1; /* yes if machine-id is permanent */
1555                         else {
1556                                 r = parse_boolean_argument("--make-entry-directory=", optarg, &b);
1557                                 if (r < 0)
1558                                         return r;
1559
1560                                 arg_make_entry_directory = b;
1561                         }
1562                         break;
1563
1564                 case ARG_JSON:
1565                         r = parse_json_argument(optarg, &arg_json_format_flags);
1566                         if (r <= 0)
1567                                 return r;
1568
1569                         break;
1570
1571                 case '?':
1572                         return -EINVAL;
1573
1574                 default:
1575                         assert_not_reached();
1576                 }
1577
1578         return 1;
1579 }
1580
1581 static void read_efi_var(const char *variable, char **ret) {
1582         int r;
1583
1584         r = efi_get_variable_string(variable, ret);
1585         if (r < 0 && r != -ENOENT)
1586                 log_warning_errno(r, "Failed to read EFI variable %s: %m", variable);
1587 }
1588
1589 static void print_yes_no_line(bool first, bool good, const char *name) {
1590         printf("%s%s %s\n",
1591                first ? "     Features: " : "               ",
1592                COLOR_MARK_BOOL(good),
1593                name);
1594 }
1595
1596 static int are_we_installed(void) {
1597         int r;
1598
1599         r = acquire_esp(/* privileged_mode= */ false, /* graceful= */ false, NULL, NULL, NULL, NULL, NULL);
1600         if (r < 0)
1601                 return r;
1602
1603         /* Tests whether systemd-boot is installed. It's not obvious what to use as check here: we could
1604          * check EFI variables, we could check what binary /EFI/BOOT/BOOT*.EFI points to, or whether the
1605          * loader entries directory exists. Here we opted to check whether /EFI/systemd/ is non-empty, which
1606          * should be a suitable and very minimal check for a number of reasons:
1607          *
1608          *  → The check is architecture independent (i.e. we check if any systemd-boot loader is installed,
1609          *    not a specific one.)
1610          *
1611          *  → It doesn't assume we are the only boot loader (i.e doesn't check if we own the main
1612          *    /EFI/BOOT/BOOT*.EFI fallback binary.
1613          *
1614          *  → It specifically checks for systemd-boot, not for other boot loaders (which a check for
1615          *    /boot/loader/entries would do). */
1616
1617         _cleanup_free_ char *p = path_join(arg_esp_path, "/EFI/systemd/");
1618         if (!p)
1619                 return log_oom();
1620
1621         log_debug("Checking whether %s contains any files…", p);
1622         r = dir_is_empty(p);
1623         if (r < 0 && r != -ENOENT)
1624                 return log_error_errno(r, "Failed to check whether %s contains any files: %m", p);
1625
1626         return r == 0;
1627 }
1628
1629 static int verb_status(int argc, char *argv[], void *userdata) {
1630         sd_id128_t esp_uuid = SD_ID128_NULL, xbootldr_uuid = SD_ID128_NULL;
1631         dev_t esp_devid = 0, xbootldr_devid = 0;
1632         int r, k;
1633
1634         r = acquire_esp(/* unprivileged_mode= */ geteuid() != 0, /* graceful= */ false, NULL, NULL, NULL, &esp_uuid, &esp_devid);
1635         if (arg_print_esp_path) {
1636                 if (r == -EACCES) /* If we couldn't acquire the ESP path, log about access errors (which is the only
1637                                    * error the find_esp_and_warn() won't log on its own) */
1638                         return log_error_errno(r, "Failed to determine ESP location: %m");
1639                 if (r < 0)
1640                         return r;
1641
1642                 puts(arg_esp_path);
1643         }
1644
1645         r = acquire_xbootldr(/* unprivileged_mode= */ geteuid() != 0, &xbootldr_uuid, &xbootldr_devid);
1646         if (arg_print_dollar_boot_path) {
1647                 if (r == -EACCES)
1648                         return log_error_errno(r, "Failed to determine XBOOTLDR location: %m");
1649                 if (r < 0)
1650                         return r;
1651
1652                 const char *path = arg_dollar_boot_path();
1653                 if (!path)
1654                         return log_error_errno(SYNTHETIC_ERRNO(EACCES), "Failed to determine XBOOTLDR location: %m");
1655
1656                 puts(path);
1657         }
1658
1659         if (arg_print_esp_path || arg_print_dollar_boot_path)
1660                 return 0;
1661
1662         r = 0; /* If we couldn't determine the path, then don't consider that a problem from here on, just show what we
1663                 * can show */
1664
1665         pager_open(arg_pager_flags);
1666
1667         if (is_efi_boot()) {
1668                 static const struct {
1669                         uint64_t flag;
1670                         const char *name;
1671                 } flags[] = {
1672                         { EFI_LOADER_FEATURE_BOOT_COUNTING,           "Boot counting"                         },
1673                         { EFI_LOADER_FEATURE_CONFIG_TIMEOUT,          "Menu timeout control"                  },
1674                         { EFI_LOADER_FEATURE_CONFIG_TIMEOUT_ONE_SHOT, "One-shot menu timeout control"         },
1675                         { EFI_LOADER_FEATURE_ENTRY_DEFAULT,           "Default entry control"                 },
1676                         { EFI_LOADER_FEATURE_ENTRY_ONESHOT,           "One-shot entry control"                },
1677                         { EFI_LOADER_FEATURE_XBOOTLDR,                "Support for XBOOTLDR partition"        },
1678                         { EFI_LOADER_FEATURE_RANDOM_SEED,             "Support for passing random seed to OS" },
1679                         { EFI_LOADER_FEATURE_LOAD_DRIVER,             "Load drop-in drivers"                  },
1680                 };
1681
1682                 _cleanup_free_ char *fw_type = NULL, *fw_info = NULL, *loader = NULL, *loader_path = NULL, *stub = NULL;
1683                 sd_id128_t loader_part_uuid = SD_ID128_NULL;
1684                 uint64_t loader_features = 0;
1685                 int have;
1686
1687                 read_efi_var(EFI_LOADER_VARIABLE(LoaderFirmwareType), &fw_type);
1688                 read_efi_var(EFI_LOADER_VARIABLE(LoaderFirmwareInfo), &fw_info);
1689                 read_efi_var(EFI_LOADER_VARIABLE(LoaderInfo), &loader);
1690                 read_efi_var(EFI_LOADER_VARIABLE(StubInfo), &stub);
1691                 read_efi_var(EFI_LOADER_VARIABLE(LoaderImageIdentifier), &loader_path);
1692                 (void) efi_loader_get_features(&loader_features);
1693
1694                 if (loader_path)
1695                         efi_tilt_backslashes(loader_path);
1696
1697                 k = efi_loader_get_device_part_uuid(&loader_part_uuid);
1698                 if (k < 0 && k != -ENOENT)
1699                         r = log_warning_errno(k, "Failed to read EFI variable LoaderDevicePartUUID: %m");
1700
1701                 SecureBootMode secure = efi_get_secure_boot_mode();
1702                 printf("System:\n");
1703                 printf("     Firmware: %s%s (%s)%s\n", ansi_highlight(), strna(fw_type), strna(fw_info), ansi_normal());
1704                 printf("  Secure Boot: %sd (%s)\n",
1705                        enable_disable(IN_SET(secure, SECURE_BOOT_USER, SECURE_BOOT_DEPLOYED)),
1706                        secure_boot_mode_to_string(secure));
1707                 printf(" TPM2 Support: %s\n", yes_no(efi_has_tpm2()));
1708
1709                 k = efi_get_reboot_to_firmware();
1710                 if (k > 0)
1711                         printf(" Boot into FW: %sactive%s\n", ansi_highlight_yellow(), ansi_normal());
1712                 else if (k == 0)
1713                         printf(" Boot into FW: supported\n");
1714                 else if (k == -EOPNOTSUPP)
1715                         printf(" Boot into FW: not supported\n");
1716                 else {
1717                         errno = -k;
1718                         printf(" Boot into FW: %sfailed%s (%m)\n", ansi_highlight_red(), ansi_normal());
1719                 }
1720                 printf("\n");
1721
1722                 printf("Current Boot Loader:\n");
1723                 printf("      Product: %s%s%s\n", ansi_highlight(), strna(loader), ansi_normal());
1724
1725                 for (size_t i = 0; i < ELEMENTSOF(flags); i++)
1726                         print_yes_no_line(i == 0, FLAGS_SET(loader_features, flags[i].flag), flags[i].name);
1727
1728                 sd_id128_t bootloader_esp_uuid;
1729                 bool have_bootloader_esp_uuid = efi_loader_get_device_part_uuid(&bootloader_esp_uuid) >= 0;
1730
1731                 print_yes_no_line(false, have_bootloader_esp_uuid, "Boot loader sets ESP information");
1732                 if (have_bootloader_esp_uuid && !sd_id128_equal(esp_uuid, bootloader_esp_uuid))
1733                         printf("WARNING: The boot loader reports a different ESP UUID than detected!\n");
1734
1735                 if (stub)
1736                         printf("         Stub: %s\n", stub);
1737                 if (!sd_id128_is_null(loader_part_uuid))
1738                         printf("          ESP: /dev/disk/by-partuuid/" SD_ID128_UUID_FORMAT_STR "\n",
1739                                SD_ID128_FORMAT_VAL(loader_part_uuid));
1740                 else
1741                         printf("          ESP: n/a\n");
1742                 printf("         File: %s%s\n", special_glyph(SPECIAL_GLYPH_TREE_RIGHT), strna(loader_path));
1743                 printf("\n");
1744
1745                 printf("Random Seed:\n");
1746                 have = access(EFIVAR_PATH(EFI_LOADER_VARIABLE(LoaderRandomSeed)), F_OK) >= 0;
1747                 printf(" Passed to OS: %s\n", yes_no(have));
1748                 have = access(EFIVAR_PATH(EFI_LOADER_VARIABLE(LoaderSystemToken)), F_OK) >= 0;
1749                 printf(" System Token: %s\n", have ? "set" : "not set");
1750
1751                 if (arg_esp_path) {
1752                         _cleanup_free_ char *p = NULL;
1753
1754                         p = path_join(arg_esp_path, "/loader/random-seed");
1755                         if (!p)
1756                                 return log_oom();
1757
1758                         have = access(p, F_OK) >= 0;
1759                         printf("       Exists: %s\n", yes_no(have));
1760                 }
1761
1762                 printf("\n");
1763         } else
1764                 printf("System:\n    Not booted with EFI\n\n");
1765
1766         if (arg_esp_path) {
1767                 k = status_binaries(arg_esp_path, esp_uuid);
1768                 if (k < 0)
1769                         r = k;
1770         }
1771
1772         if (is_efi_boot()) {
1773                 k = status_variables();
1774                 if (k < 0)
1775                         r = k;
1776         }
1777
1778         if (arg_esp_path || arg_xbootldr_path) {
1779                 /* If XBOOTLDR and ESP actually refer to the same block device, suppress XBOOTLDR, since it would find the same entries twice */
1780                 bool same = arg_esp_path && arg_xbootldr_path && devid_set_and_equal(esp_devid, xbootldr_devid);
1781
1782                 k = status_entries(
1783                                 arg_esp_path,
1784                                 esp_uuid,
1785                                 same ? NULL : arg_xbootldr_path,
1786                                 same ? SD_ID128_NULL : xbootldr_uuid);
1787                 if (k < 0)
1788                         r = k;
1789         }
1790
1791         return r;
1792 }
1793
1794 static int verb_list(int argc, char *argv[], void *userdata) {
1795         _cleanup_(boot_config_free) BootConfig config = BOOT_CONFIG_NULL;
1796         _cleanup_strv_free_ char **efi_entries = NULL;
1797         dev_t esp_devid = 0, xbootldr_devid = 0;
1798         int r;
1799
1800         /* If we lack privileges we invoke find_esp_and_warn() in "unprivileged mode" here, which does two things: turn
1801          * off logging about access errors and turn off potentially privileged device probing. Here we're interested in
1802          * the latter but not the former, hence request the mode, and log about EACCES. */
1803
1804         r = acquire_esp(/* unprivileged_mode= */ geteuid() != 0, /* graceful= */ false, NULL, NULL, NULL, NULL, &esp_devid);
1805         if (r == -EACCES) /* We really need the ESP path for this call, hence also log about access errors */
1806                 return log_error_errno(r, "Failed to determine ESP: %m");
1807         if (r < 0)
1808                 return r;
1809
1810         r = acquire_xbootldr(/* unprivileged_mode= */ geteuid() != 0, NULL, &xbootldr_devid);
1811         if (r == -EACCES)
1812                 return log_error_errno(r, "Failed to determine XBOOTLDR partition: %m");
1813         if (r < 0)
1814                 return r;
1815
1816         /* If XBOOTLDR and ESP actually refer to the same block device, suppress XBOOTLDR, since it would find the same entries twice */
1817         bool same = arg_esp_path && arg_xbootldr_path && devid_set_and_equal(esp_devid, xbootldr_devid);
1818
1819         r = boot_config_load(&config, arg_esp_path, same ? NULL : arg_xbootldr_path);
1820         if (r < 0)
1821                 return r;
1822
1823         r = efi_loader_get_entries(&efi_entries);
1824         if (r == -ENOENT || ERRNO_IS_NOT_SUPPORTED(r))
1825                 log_debug_errno(r, "Boot loader reported no entries.");
1826         else if (r < 0)
1827                 log_warning_errno(r, "Failed to determine entries reported by boot loader, ignoring: %m");
1828         else
1829                 (void) boot_config_augment_from_loader(&config, efi_entries, /* only_auto= */ false);
1830
1831         r = boot_config_select_special_entries(&config);
1832         if (r < 0)
1833                 return r;
1834
1835         if (!FLAGS_SET(arg_json_format_flags, JSON_FORMAT_OFF)) {
1836
1837                 pager_open(arg_pager_flags);
1838
1839                 for (size_t i = 0; i < config.n_entries; i++) {
1840                         _cleanup_free_ char *opts = NULL;
1841                         BootEntry *e = config.entries + i;
1842                         _cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
1843
1844                         if (!strv_isempty(e->options)) {
1845                                 opts = strv_join(e->options, " ");
1846                                 if (!opts)
1847                                         return log_oom();
1848                         }
1849
1850                         r = json_build(&v, JSON_BUILD_OBJECT(
1851                                                        JSON_BUILD_PAIR_CONDITION(e->id, "id", JSON_BUILD_STRING(e->id)),
1852                                                        JSON_BUILD_PAIR_CONDITION(e->path, "path", JSON_BUILD_STRING(e->path)),
1853                                                        JSON_BUILD_PAIR_CONDITION(e->root, "root", JSON_BUILD_STRING(e->root)),
1854                                                        JSON_BUILD_PAIR_CONDITION(e->title, "title", JSON_BUILD_STRING(e->title)),
1855                                                        JSON_BUILD_PAIR_CONDITION(boot_entry_title(e), "showTitle", JSON_BUILD_STRING(boot_entry_title(e))),
1856                                                        JSON_BUILD_PAIR_CONDITION(e->sort_key, "sortKey", JSON_BUILD_STRING(e->sort_key)),
1857                                                        JSON_BUILD_PAIR_CONDITION(e->version, "version", JSON_BUILD_STRING(e->version)),
1858                                                        JSON_BUILD_PAIR_CONDITION(e->machine_id, "machineId", JSON_BUILD_STRING(e->machine_id)),
1859                                                        JSON_BUILD_PAIR_CONDITION(e->architecture, "architecture", JSON_BUILD_STRING(e->architecture)),
1860                                                        JSON_BUILD_PAIR_CONDITION(opts, "options", JSON_BUILD_STRING(opts)),
1861                                                        JSON_BUILD_PAIR_CONDITION(e->kernel, "linux", JSON_BUILD_STRING(e->kernel)),
1862                                                        JSON_BUILD_PAIR_CONDITION(e->efi, "efi", JSON_BUILD_STRING(e->efi)),
1863                                                        JSON_BUILD_PAIR_CONDITION(!strv_isempty(e->initrd), "initrd", JSON_BUILD_STRV(e->initrd)),
1864                                                        JSON_BUILD_PAIR_CONDITION(e->device_tree, "devicetree", JSON_BUILD_STRING(e->device_tree)),
1865                                                        JSON_BUILD_PAIR_CONDITION(!strv_isempty(e->device_tree_overlay), "devicetreeOverlay", JSON_BUILD_STRV(e->device_tree_overlay))));
1866                         if (r < 0)
1867                                 return log_oom();
1868
1869                         json_variant_dump(v, arg_json_format_flags, stdout, NULL);
1870                 }
1871
1872         } else if (config.n_entries == 0)
1873                 log_info("No boot loader entries found.");
1874         else {
1875                 pager_open(arg_pager_flags);
1876
1877                 printf("Boot Loader Entries:\n");
1878
1879                 for (size_t n = 0; n < config.n_entries; n++) {
1880                         r = boot_entry_show(
1881                                         config.entries + n,
1882                                         /* show_as_default= */  n == (size_t) config.default_entry,
1883                                         /* show_as_selected= */ n == (size_t) config.selected_entry,
1884                                         /* show_discovered= */  true);
1885                         if (r < 0)
1886                                 return r;
1887
1888                         if (n+1 < config.n_entries)
1889                                 putchar('\n');
1890                 }
1891         }
1892
1893         return 0;
1894 }
1895
1896 static int install_random_seed(const char *esp) {
1897         _cleanup_(unlink_and_freep) char *tmp = NULL;
1898         _cleanup_free_ void *buffer = NULL;
1899         _cleanup_free_ char *path = NULL;
1900         _cleanup_close_ int fd = -1;
1901         size_t sz, token_size;
1902         ssize_t n;
1903         int r;
1904
1905         assert(esp);
1906
1907         path = path_join(esp, "/loader/random-seed");
1908         if (!path)
1909                 return log_oom();
1910
1911         sz = random_pool_size();
1912
1913         buffer = malloc(sz);
1914         if (!buffer)
1915                 return log_oom();
1916
1917         r = genuine_random_bytes(buffer, sz, RANDOM_BLOCK);
1918         if (r < 0)
1919                 return log_error_errno(r, "Failed to acquire random seed: %m");
1920
1921         /* Normally create_subdirs() should already have created everything we need, but in case "bootctl
1922          * random-seed" is called we want to just create the minimum we need for it, and not the full
1923          * list. */
1924         r = mkdir_parents(path, 0755);
1925         if (r < 0)
1926                 return log_error_errno(r, "Failed to create parent directory for %s: %m", path);
1927
1928         r = tempfn_random(path, "bootctl", &tmp);
1929         if (r < 0)
1930                 return log_oom();
1931
1932         fd = open(tmp, O_CREAT|O_EXCL|O_NOFOLLOW|O_NOCTTY|O_WRONLY|O_CLOEXEC, 0600);
1933         if (fd < 0) {
1934                 tmp = mfree(tmp);
1935                 return log_error_errno(fd, "Failed to open random seed file for writing: %m");
1936         }
1937
1938         n = write(fd, buffer, sz);
1939         if (n < 0)
1940                 return log_error_errno(errno, "Failed to write random seed file: %m");
1941         if ((size_t) n != sz)
1942                 return log_error_errno(SYNTHETIC_ERRNO(EIO), "Short write while writing random seed file.");
1943
1944         if (rename(tmp, path) < 0)
1945                 return log_error_errno(r, "Failed to move random seed file into place: %m");
1946
1947         tmp = mfree(tmp);
1948
1949         log_info("Random seed file %s successfully written (%zu bytes).", path, sz);
1950
1951         if (!arg_touch_variables)
1952                 return 0;
1953
1954         if (!is_efi_boot()) {
1955                 log_notice("Not booted with EFI, skipping EFI variable setup.");
1956                 return 0;
1957         }
1958
1959         r = getenv_bool("SYSTEMD_WRITE_SYSTEM_TOKEN");
1960         if (r < 0) {
1961                 if (r != -ENXIO)
1962                          log_warning_errno(r, "Failed to parse $SYSTEMD_WRITE_SYSTEM_TOKEN, ignoring.");
1963
1964                 if (detect_vm() > 0) {
1965                         /* Let's not write a system token if we detect we are running in a VM
1966                          * environment. Why? Our default security model for the random seed uses the system
1967                          * token as a mechanism to ensure we are not vulnerable to golden master sloppiness
1968                          * issues, i.e. that people initialize the random seed file, then copy the image to
1969                          * many systems and end up with the same random seed in each that is assumed to be
1970                          * valid but in reality is the same for all machines. By storing a system token in
1971                          * the EFI variable space we can make sure that even though the random seeds on disk
1972                          * are all the same they will be different on each system under the assumption that
1973                          * the EFI variable space is maintained separate from the random seed storage. That
1974                          * is generally the case on physical systems, as the ESP is stored on persistent
1975                          * storage, and the EFI variables in NVRAM. However in virtualized environments this
1976                          * is generally not true: the EFI variable set is typically stored along with the
1977                          * disk image itself. For example, using the OVMF EFI firmware the EFI variables are
1978                          * stored in a file in the ESP itself. */
1979
1980                         log_notice("Not installing system token, since we are running in a virtualized environment.");
1981                         return 0;
1982                 }
1983         } else if (r == 0) {
1984                 log_notice("Not writing system token, because $SYSTEMD_WRITE_SYSTEM_TOKEN is set to false.");
1985                 return 0;
1986         }
1987
1988         r = efi_get_variable(EFI_LOADER_VARIABLE(LoaderSystemToken), NULL, NULL, &token_size);
1989         if (r == -ENODATA)
1990                 log_debug_errno(r, "LoaderSystemToken EFI variable is invalid (too short?), replacing.");
1991         else if (r < 0) {
1992                 if (r != -ENOENT)
1993                         return log_error_errno(r, "Failed to test system token validity: %m");
1994         } else {
1995                 if (token_size >= sz) {
1996                         /* Let's avoid writes if we can, and initialize this only once. */
1997                         log_debug("System token already written, not updating.");
1998                         return 0;
1999                 }
2000
2001                 log_debug("Existing system token size (%zu) does not match our expectations (%zu), replacing.", token_size, sz);
2002         }
2003
2004         r = genuine_random_bytes(buffer, sz, RANDOM_BLOCK);
2005         if (r < 0)
2006                 return log_error_errno(r, "Failed to acquire random seed: %m");
2007
2008         /* Let's write this variable with an umask in effect, so that unprivileged users can't see the token
2009          * and possibly get identification information or too much insight into the kernel's entropy pool
2010          * state. */
2011         RUN_WITH_UMASK(0077) {
2012                 r = efi_set_variable(EFI_LOADER_VARIABLE(LoaderSystemToken), buffer, sz);
2013                 if (r < 0) {
2014                         if (!arg_graceful)
2015                                 return log_error_errno(r, "Failed to write 'LoaderSystemToken' EFI variable: %m");
2016
2017                         if (r == -EINVAL)
2018                                 log_warning_errno(r, "Unable to write 'LoaderSystemToken' EFI variable (firmware problem?), ignoring: %m");
2019                         else
2020                                 log_warning_errno(r, "Unable to write 'LoaderSystemToken' EFI variable, ignoring: %m");
2021                 } else
2022                         log_info("Successfully initialized system token in EFI variable with %zu bytes.", sz);
2023         }
2024
2025         return 0;
2026 }
2027
2028 static int sync_everything(void) {
2029         int ret = 0, k;
2030
2031         if (arg_esp_path) {
2032                 k = syncfs_path(AT_FDCWD, arg_esp_path);
2033                 if (k < 0)
2034                         ret = log_error_errno(k, "Failed to synchronize the ESP '%s': %m", arg_esp_path);
2035         }
2036
2037         if (arg_xbootldr_path) {
2038                 k = syncfs_path(AT_FDCWD, arg_xbootldr_path);
2039                 if (k < 0)
2040                         ret = log_error_errno(k, "Failed to synchronize $BOOT '%s': %m", arg_xbootldr_path);
2041         }
2042
2043         return ret;
2044 }
2045
2046 static int verb_install(int argc, char *argv[], void *userdata) {
2047         sd_id128_t uuid = SD_ID128_NULL;
2048         uint64_t pstart = 0, psize = 0;
2049         uint32_t part = 0;
2050         bool install, graceful;
2051         int r;
2052
2053         /* Invoked for both "update" and "install" */
2054
2055         install = streq(argv[0], "install");
2056         graceful = !install && arg_graceful; /* support graceful mode for updates */
2057
2058         r = acquire_esp(/* unprivileged_mode= */ false, graceful, &part, &pstart, &psize, &uuid, NULL);
2059         if (graceful && r == -ENOKEY)
2060                 return 0; /* If --graceful is specified and we can't find an ESP, handle this cleanly */
2061         if (r < 0)
2062                 return r;
2063
2064         if (!install) {
2065                 /* If we are updating, don't do anything if sd-boot wasn't actually installed. */
2066                 r = are_we_installed();
2067                 if (r < 0)
2068                         return r;
2069                 if (r == 0) {
2070                         log_debug("Skipping update because sd-boot is not installed in the ESP.");
2071                         return 0;
2072                 }
2073         }
2074
2075         r = acquire_xbootldr(/* unprivileged_mode= */ false, NULL, NULL);
2076         if (r < 0)
2077                 return r;
2078
2079         r = settle_make_entry_directory();
2080         if (r < 0)
2081                 return r;
2082
2083         RUN_WITH_UMASK(0002) {
2084                 if (install) {
2085                         /* Don't create any of these directories when we are just updating. When we update
2086                          * we'll drop-in our files (unless there are newer ones already), but we won't create
2087                          * the directories for them in the first place. */
2088                         r = create_subdirs(arg_esp_path, esp_subdirs);
2089                         if (r < 0)
2090                                 return r;
2091
2092                         r = create_subdirs(arg_dollar_boot_path(), dollar_boot_subdirs);
2093                         if (r < 0)
2094                                 return r;
2095                 }
2096
2097                 r = install_binaries(arg_esp_path, install);
2098                 if (r < 0)
2099                         return r;
2100
2101                 if (install) {
2102                         r = install_loader_config(arg_esp_path);
2103                         if (r < 0)
2104                                 return r;
2105
2106                         r = install_entry_directory(arg_dollar_boot_path());
2107                         if (r < 0)
2108                                 return r;
2109
2110                         r = install_entry_token();
2111                         if (r < 0)
2112                                 return r;
2113
2114                         r = install_random_seed(arg_esp_path);
2115                         if (r < 0)
2116                                 return r;
2117                 }
2118
2119                 r = install_loader_specification(arg_dollar_boot_path());
2120                 if (r < 0)
2121                         return r;
2122         }
2123
2124         (void) sync_everything();
2125
2126         if (arg_touch_variables)
2127                 r = install_variables(arg_esp_path,
2128                                       part, pstart, psize, uuid,
2129                                       "/EFI/systemd/systemd-boot" EFI_MACHINE_TYPE_NAME ".efi",
2130                                       install);
2131
2132         return r;
2133 }
2134
2135 static int verb_remove(int argc, char *argv[], void *userdata) {
2136         sd_id128_t uuid = SD_ID128_NULL;
2137         int r, q;
2138
2139         r = acquire_esp(/* unprivileged_mode= */ false, /* graceful= */ false, NULL, NULL, NULL, &uuid, NULL);
2140         if (r < 0)
2141                 return r;
2142
2143         r = acquire_xbootldr(/* unprivileged_mode= */ false, NULL, NULL);
2144         if (r < 0)
2145                 return r;
2146
2147         r = settle_make_entry_directory();
2148         if (r < 0)
2149                 return r;
2150
2151         r = remove_binaries(arg_esp_path);
2152
2153         q = remove_file(arg_esp_path, "/loader/loader.conf");
2154         if (q < 0 && r >= 0)
2155                 r = q;
2156
2157         q = remove_file(arg_esp_path, "/loader/random-seed");
2158         if (q < 0 && r >= 0)
2159                 r = q;
2160
2161         q = remove_file(arg_esp_path, "/loader/entries.srel");
2162         if (q < 0 && r >= 0)
2163                 r = q;
2164
2165         q = remove_subdirs(arg_esp_path, esp_subdirs);
2166         if (q < 0 && r >= 0)
2167                 r = q;
2168
2169         q = remove_subdirs(arg_esp_path, dollar_boot_subdirs);
2170         if (q < 0 && r >= 0)
2171                 r = q;
2172
2173         q = remove_entry_directory(arg_esp_path);
2174         if (q < 0 && r >= 0)
2175                 r = q;
2176
2177         if (arg_xbootldr_path) {
2178                 /* Remove a subset of these also from the XBOOTLDR partition if it exists */
2179
2180                 q = remove_file(arg_xbootldr_path, "/loader/entries.srel");
2181                 if (q < 0 && r >= 0)
2182                         r = q;
2183
2184                 q = remove_subdirs(arg_xbootldr_path, dollar_boot_subdirs);
2185                 if (q < 0 && r >= 0)
2186                         r = q;
2187
2188                 q = remove_entry_directory(arg_xbootldr_path);
2189                 if (q < 0 && r >= 0)
2190                         r = q;
2191         }
2192
2193         (void) sync_everything();
2194
2195         if (!arg_touch_variables)
2196                 return r;
2197
2198         q = remove_variables(uuid, "/EFI/systemd/systemd-boot" EFI_MACHINE_TYPE_NAME ".efi", true);
2199         if (q < 0 && r >= 0)
2200                 r = q;
2201
2202         q = remove_loader_variables();
2203         if (q < 0 && r >= 0)
2204                 r = q;
2205
2206         return r;
2207 }
2208
2209 static int verb_is_installed(int argc, char *argv[], void *userdata) {
2210         int r;
2211
2212         r = are_we_installed();
2213         if (r < 0)
2214                 return r;
2215
2216         if (r > 0) {
2217                 puts("yes");
2218                 return EXIT_SUCCESS;
2219         } else {
2220                 puts("no");
2221                 return EXIT_FAILURE;
2222         }
2223 }
2224
2225 static int parse_timeout(const char *arg1, char16_t **ret_timeout, size_t *ret_timeout_size) {
2226         char utf8[DECIMAL_STR_MAX(usec_t)];
2227         char16_t *encoded;
2228         usec_t timeout;
2229         int r;
2230
2231         assert(arg1);
2232         assert(ret_timeout);
2233         assert(ret_timeout_size);
2234
2235         if (streq(arg1, "menu-force"))
2236                 timeout = USEC_INFINITY;
2237         else if (streq(arg1, "menu-hidden"))
2238                 timeout = 0;
2239         else {
2240                 r = parse_time(arg1, &timeout, USEC_PER_SEC);
2241                 if (r < 0)
2242                         return log_error_errno(r, "Failed to parse timeout '%s': %m", arg1);
2243                 if (timeout != USEC_INFINITY && timeout > UINT32_MAX * USEC_PER_SEC)
2244                         log_warning("Timeout is too long and will be treated as 'menu-force' instead.");
2245         }
2246
2247         xsprintf(utf8, USEC_FMT, MIN(timeout / USEC_PER_SEC, UINT32_MAX));
2248
2249         encoded = utf8_to_utf16(utf8, strlen(utf8));
2250         if (!encoded)
2251                 return log_oom();
2252
2253         *ret_timeout = encoded;
2254         *ret_timeout_size = char16_strlen(encoded) * 2 + 2;
2255         return 0;
2256 }
2257
2258 static int parse_loader_entry_target_arg(const char *arg1, char16_t **ret_target, size_t *ret_target_size) {
2259         char16_t *encoded = NULL;
2260         int r;
2261
2262         assert(arg1);
2263         assert(ret_target);
2264         assert(ret_target_size);
2265
2266         if (streq(arg1, "@current")) {
2267                 r = efi_get_variable(EFI_LOADER_VARIABLE(LoaderEntrySelected), NULL, (void *) ret_target, ret_target_size);
2268                 if (r < 0)
2269                         return log_error_errno(r, "Failed to get EFI variable 'LoaderEntrySelected': %m");
2270
2271         } else if (streq(arg1, "@oneshot")) {
2272                 r = efi_get_variable(EFI_LOADER_VARIABLE(LoaderEntryOneShot), NULL, (void *) ret_target, ret_target_size);
2273                 if (r < 0)
2274                         return log_error_errno(r, "Failed to get EFI variable 'LoaderEntryOneShot': %m");
2275
2276         } else if (streq(arg1, "@default")) {
2277                 r = efi_get_variable(EFI_LOADER_VARIABLE(LoaderEntryDefault), NULL, (void *) ret_target, ret_target_size);
2278                 if (r < 0)
2279                         return log_error_errno(r, "Failed to get EFI variable 'LoaderEntryDefault': %m");
2280
2281         } else if (arg1[0] == '@' && !streq(arg1, "@saved"))
2282                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Unsupported special entry identifier: %s", arg1);
2283         else {
2284                 encoded = utf8_to_utf16(arg1, strlen(arg1));
2285                 if (!encoded)
2286                         return log_oom();
2287
2288                 *ret_target = encoded;
2289                 *ret_target_size = char16_strlen(encoded) * 2 + 2;
2290         }
2291
2292         return 0;
2293 }
2294
2295 static int verb_set_efivar(int argc, char *argv[], void *userdata) {
2296         int r;
2297
2298         if (!is_efi_boot())
2299                 return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP),
2300                                        "Not booted with UEFI.");
2301
2302         if (access(EFIVAR_PATH(EFI_LOADER_VARIABLE(LoaderInfo)), F_OK) < 0) {
2303                 if (errno == ENOENT) {
2304                         log_error_errno(errno, "Not booted with a supported boot loader.");
2305                         return -EOPNOTSUPP;
2306                 }
2307
2308                 return log_error_errno(errno, "Failed to detect whether boot loader supports '%s' operation: %m", argv[0]);
2309         }
2310
2311         if (detect_container() > 0)
2312                 return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP),
2313                                        "'%s' operation not supported in a container.",
2314                                        argv[0]);
2315
2316         if (!arg_touch_variables)
2317                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2318                                        "'%s' operation cannot be combined with --no-variables.",
2319                                        argv[0]);
2320
2321         const char *variable;
2322         int (* arg_parser)(const char *, char16_t **, size_t *);
2323
2324         if (streq(argv[0], "set-default")) {
2325                 variable = EFI_LOADER_VARIABLE(LoaderEntryDefault);
2326                 arg_parser = parse_loader_entry_target_arg;
2327         } else if (streq(argv[0], "set-oneshot")) {
2328                 variable = EFI_LOADER_VARIABLE(LoaderEntryOneShot);
2329                 arg_parser = parse_loader_entry_target_arg;
2330         } else if (streq(argv[0], "set-timeout")) {
2331                 variable = EFI_LOADER_VARIABLE(LoaderConfigTimeout);
2332                 arg_parser = parse_timeout;
2333         } else if (streq(argv[0], "set-timeout-oneshot")) {
2334                 variable = EFI_LOADER_VARIABLE(LoaderConfigTimeoutOneShot);
2335                 arg_parser = parse_timeout;
2336         } else
2337                 assert_not_reached();
2338
2339         if (isempty(argv[1])) {
2340                 r = efi_set_variable(variable, NULL, 0);
2341                 if (r < 0 && r != -ENOENT)
2342                         return log_error_errno(r, "Failed to remove EFI variable '%s': %m", variable);
2343         } else {
2344                 _cleanup_free_ char16_t *value = NULL;
2345                 size_t value_size = 0;
2346
2347                 r = arg_parser(argv[1], &value, &value_size);
2348                 if (r < 0)
2349                         return r;
2350                 r = efi_set_variable(variable, value, value_size);
2351                 if (r < 0)
2352                         return log_error_errno(r, "Failed to update EFI variable '%s': %m", variable);
2353         }
2354
2355         return 0;
2356 }
2357
2358 static int verb_random_seed(int argc, char *argv[], void *userdata) {
2359         int r;
2360
2361         r = find_esp_and_warn(arg_esp_path, false, &arg_esp_path, NULL, NULL, NULL, NULL, NULL);
2362         if (r == -ENOKEY) {
2363                 /* find_esp_and_warn() doesn't warn about ENOKEY, so let's do that on our own */
2364                 if (!arg_graceful)
2365                         return log_error_errno(r, "Unable to find ESP.");
2366
2367                 log_notice("No ESP found, not initializing random seed.");
2368                 return 0;
2369         }
2370         if (r < 0)
2371                 return r;
2372
2373         r = install_random_seed(arg_esp_path);
2374         if (r < 0)
2375                 return r;
2376
2377         (void) sync_everything();
2378         return 0;
2379 }
2380
2381 static int verb_systemd_efi_options(int argc, char *argv[], void *userdata) {
2382         int r;
2383
2384         if (argc == 1) {
2385                 _cleanup_free_ char *line = NULL, *new = NULL;
2386
2387                 r = systemd_efi_options_variable(&line);
2388                 if (r == -ENODATA)
2389                         log_debug("No SystemdOptions EFI variable present in cache.");
2390                 else if (r < 0)
2391                         return log_error_errno(r, "Failed to read SystemdOptions EFI variable from cache: %m");
2392                 else
2393                         puts(line);
2394
2395                 r = systemd_efi_options_efivarfs_if_newer(&new);
2396                 if (r == -ENODATA) {
2397                         if (line)
2398                                 log_notice("Note: SystemdOptions EFI variable has been removed since boot.");
2399                 } else if (r < 0)
2400                         log_warning_errno(r, "Failed to check SystemdOptions EFI variable in efivarfs, ignoring: %m");
2401                 else if (new && !streq_ptr(line, new))
2402                         log_notice("Note: SystemdOptions EFI variable has been modified since boot. New value: %s",
2403                                    new);
2404         } else {
2405                 r = efi_set_variable_string(EFI_SYSTEMD_VARIABLE(SystemdOptions), argv[1]);
2406                 if (r < 0)
2407                         return log_error_errno(r, "Failed to set SystemdOptions EFI variable: %m");
2408         }
2409
2410         return 0;
2411 }
2412
2413 static int verb_reboot_to_firmware(int argc, char *argv[], void *userdata) {
2414         int r;
2415
2416         if (argc < 2) {
2417                 r = efi_get_reboot_to_firmware();
2418                 if (r > 0) {
2419                         puts("active");
2420                         return EXIT_SUCCESS; /* success */
2421                 }
2422                 if (r == 0) {
2423                         puts("supported");
2424                         return 1; /* recognizable error #1 */
2425                 }
2426                 if (r == -EOPNOTSUPP) {
2427                         puts("not supported");
2428                         return 2; /* recognizable error #2 */
2429                 }
2430
2431                 log_error_errno(r, "Failed to query reboot-to-firmware state: %m");
2432                 return 3; /* other kind of error */
2433         } else {
2434                 r = parse_boolean(argv[1]);
2435                 if (r < 0)
2436                         return log_error_errno(r, "Failed to parse argument: %s", argv[1]);
2437
2438                 r = efi_set_reboot_to_firmware(r);
2439                 if (r < 0)
2440                         return log_error_errno(r, "Failed to set reboot-to-firmware option: %m");
2441
2442                 return 0;
2443         }
2444 }
2445
2446 static int bootctl_main(int argc, char *argv[]) {
2447         static const Verb verbs[] = {
2448                 { "help",                VERB_ANY, VERB_ANY, 0,            help                     },
2449                 { "status",              VERB_ANY, 1,        VERB_DEFAULT, verb_status              },
2450                 { "install",             VERB_ANY, 1,        0,            verb_install             },
2451                 { "update",              VERB_ANY, 1,        0,            verb_install             },
2452                 { "remove",              VERB_ANY, 1,        0,            verb_remove              },
2453                 { "is-installed",        VERB_ANY, 1,        0,            verb_is_installed        },
2454                 { "list",                VERB_ANY, 1,        0,            verb_list                },
2455                 { "set-default",         2,        2,        0,            verb_set_efivar          },
2456                 { "set-oneshot",         2,        2,        0,            verb_set_efivar          },
2457                 { "set-timeout",         2,        2,        0,            verb_set_efivar          },
2458                 { "set-timeout-oneshot", 2,        2,        0,            verb_set_efivar          },
2459                 { "random-seed",         VERB_ANY, 1,        0,            verb_random_seed         },
2460                 { "systemd-efi-options", VERB_ANY, 2,        0,            verb_systemd_efi_options },
2461                 { "reboot-to-firmware",  VERB_ANY, 2,        0,            verb_reboot_to_firmware  },
2462                 {}
2463         };
2464
2465         return dispatch_verb(argc, argv, verbs, NULL);
2466 }
2467
2468 static int run(int argc, char *argv[]) {
2469         int r;
2470
2471         log_parse_environment();
2472         log_open();
2473
2474         /* If we run in a container, automatically turn off EFI file system access */
2475         if (detect_container() > 0)
2476                 arg_touch_variables = false;
2477
2478         r = parse_argv(argc, argv);
2479         if (r <= 0)
2480                 return r;
2481
2482         return bootctl_main(argc, argv);
2483 }
2484
2485 DEFINE_MAIN_FUNCTION_WITH_POSITIVE_FAILURE(run);