/* SPDX-License-Identifier: LGPL-2.1-or-later */ #include #include #include "bootctl.h" #include "bootctl-status.h" #include "bootctl-util.h" #include "bootspec.h" #include "chase.h" #include "devnum-util.h" #include "dirent-util.h" #include "efi-api.h" #include "efi-loader.h" #include "errno-util.h" #include "fd-util.h" #include "fileio.h" #include "find-esp.h" #include "path-util.h" #include "pretty-print.h" #include "recurse-dir.h" #include "terminal-util.h" #include "tpm2-util.h" static int boot_config_load_and_select( BootConfig *config, const char *esp_path, dev_t esp_devid, const char *xbootldr_path, dev_t xbootldr_devid) { int r; /* If XBOOTLDR and ESP actually refer to the same block device, suppress XBOOTLDR, since it would * find the same entries twice. */ bool same = esp_path && xbootldr_path && devnum_set_and_equal(esp_devid, xbootldr_devid); r = boot_config_load(config, esp_path, same ? NULL : xbootldr_path); if (r < 0) return r; if (!arg_root) { _cleanup_strv_free_ char **efi_entries = NULL; r = efi_loader_get_entries(&efi_entries); if (r == -ENOENT || ERRNO_IS_NEG_NOT_SUPPORTED(r)) log_debug_errno(r, "Boot loader reported no entries."); else if (r < 0) log_warning_errno(r, "Failed to determine entries reported by boot loader, ignoring: %m"); else (void) boot_config_augment_from_loader(config, efi_entries, /* only_auto= */ false); } return boot_config_select_special_entries(config, /* skip_efivars= */ !!arg_root); } static int status_entries( const BootConfig *config, const char *esp_path, sd_id128_t esp_partition_uuid, const char *xbootldr_path, sd_id128_t xbootldr_partition_uuid) { sd_id128_t dollar_boot_partition_uuid; const char *dollar_boot_path; int r; assert(config); assert(esp_path || xbootldr_path); if (xbootldr_path) { dollar_boot_path = xbootldr_path; dollar_boot_partition_uuid = xbootldr_partition_uuid; } else { dollar_boot_path = esp_path; dollar_boot_partition_uuid = esp_partition_uuid; } printf("%sBoot Loader Entries:%s\n" " $BOOT: %s", ansi_underline(), ansi_normal(), dollar_boot_path); if (!sd_id128_is_null(dollar_boot_partition_uuid)) printf(" (/dev/disk/by-partuuid/" SD_ID128_UUID_FORMAT_STR ")", SD_ID128_FORMAT_VAL(dollar_boot_partition_uuid)); if (settle_entry_token() >= 0) printf("\n token: %s", arg_entry_token); printf("\n\n"); if (config->default_entry < 0) printf("%zu entries, no entry could be determined as default.\n", config->n_entries); else { printf("%sDefault Boot Loader Entry:%s\n", ansi_underline(), ansi_normal()); r = show_boot_entry( boot_config_default_entry(config), /* show_as_default= */ false, /* show_as_selected= */ false, /* show_discovered= */ false); if (r > 0) /* < 0 is already logged by the function itself, let's just emit an extra warning if the default entry is broken */ printf("\nWARNING: default boot entry is broken\n"); } return 0; } static int print_efi_option(uint16_t id, int *n_printed, bool in_order) { _cleanup_free_ char *title = NULL; _cleanup_free_ char *path = NULL; sd_id128_t partition; bool active; int r; assert(n_printed); r = efi_get_boot_option(id, &title, &partition, &path, &active); if (r == -ENOENT) { log_debug_errno(r, "Boot option 0x%04X referenced but missing, ignoring: %m", id); return 0; } if (r < 0) return log_error_errno(r, "Failed to read boot option 0x%04X: %m", id); /* print only configured entries with partition information */ if (!path || sd_id128_is_null(partition)) { log_debug("Ignoring boot entry 0x%04X without partition information.", id); return 0; } efi_tilt_backslashes(path); if (*n_printed == 0) /* Print section title before first entry */ printf("%sBoot Loaders Listed in EFI Variables:%s\n", ansi_underline(), ansi_normal()); printf(" Title: %s%s%s\n", ansi_highlight(), strna(title), ansi_normal()); printf(" ID: 0x%04X\n", id); printf(" Status: %sactive%s\n", active ? "" : "in", in_order ? ", boot-order" : ""); printf(" Partition: /dev/disk/by-partuuid/" SD_ID128_UUID_FORMAT_STR "\n", SD_ID128_FORMAT_VAL(partition)); printf(" File: %s%s\n", special_glyph(SPECIAL_GLYPH_TREE_RIGHT), path); printf("\n"); (*n_printed)++; return 1; } static int status_variables(void) { _cleanup_free_ uint16_t *options = NULL, *order = NULL; int n_options, n_order, n_printed = 0; n_options = efi_get_boot_options(&options); if (n_options == -ENOENT) return log_error_errno(n_options, "Failed to access EFI variables, efivarfs" " needs to be available at /sys/firmware/efi/efivars/."); if (n_options < 0) return log_error_errno(n_options, "Failed to read EFI boot entries: %m"); n_order = efi_get_boot_order(&order); if (n_order == -ENOENT) n_order = 0; else if (n_order < 0) return log_error_errno(n_order, "Failed to read EFI boot order: %m"); /* print entries in BootOrder first */ for (int i = 0; i < n_order; i++) (void) print_efi_option(order[i], &n_printed, /* in_order= */ true); /* print remaining entries */ for (int i = 0; i < n_options; i++) { for (int j = 0; j < n_order; j++) if (options[i] == order[j]) goto next_option; (void) print_efi_option(options[i], &n_printed, /* in_order= */ false); next_option: continue; } if (n_printed == 0) printf("No boot loaders listed in EFI Variables.\n\n"); return 0; } static int enumerate_binaries( const char *esp_path, const char *path, const char *prefix, char **previous, bool *is_first) { _cleanup_closedir_ DIR *d = NULL; _cleanup_free_ char *p = NULL; int c = 0, r; assert(esp_path); assert(path); assert(previous); assert(is_first); r = chase_and_opendir(path, esp_path, CHASE_PREFIX_ROOT|CHASE_PROHIBIT_SYMLINKS, &p, &d); if (r == -ENOENT) return 0; if (r < 0) return log_error_errno(r, "Failed to read \"%s/%s\": %m", esp_path, path); FOREACH_DIRENT(de, d, break) { _cleanup_free_ char *v = NULL, *filename = NULL; _cleanup_close_ int fd = -EBADF; if (!endswith_no_case(de->d_name, ".efi")) continue; if (prefix && !startswith_no_case(de->d_name, prefix)) continue; filename = path_join(p, de->d_name); if (!filename) return log_oom(); LOG_SET_PREFIX(filename); fd = openat(dirfd(d), de->d_name, O_RDONLY|O_CLOEXEC); if (fd < 0) return log_error_errno(errno, "Failed to open file for reading: %m"); r = get_file_version(fd, &v); if (r < 0 && r != -ESRCH) return r; if (*previous) { /* Let's output the previous entry now, since now we know that there will be * one more, and can draw the tree glyph properly. */ printf(" %s %s%s\n", *is_first ? "File:" : " ", special_glyph(SPECIAL_GLYPH_TREE_BRANCH), *previous); *is_first = false; *previous = mfree(*previous); } /* Do not output this entry immediately, but store what should be printed in a state * variable, because we only will know the tree glyph to print (branch or final edge) once we * read one more entry */ if (r == -ESRCH) /* No systemd-owned file but still interesting to print */ r = asprintf(previous, "/%s/%s", path, de->d_name); else /* if (r >= 0) */ r = asprintf(previous, "/%s/%s (%s%s%s)", path, de->d_name, ansi_highlight(), v, ansi_normal()); if (r < 0) return log_oom(); c++; } return c; } static int status_binaries(const char *esp_path, sd_id128_t partition) { _cleanup_free_ char *last = NULL; bool is_first = true; int r, k; printf("%sAvailable Boot Loaders on ESP:%s\n", ansi_underline(), ansi_normal()); if (!esp_path) { printf(" ESP: Cannot find or access mount point of ESP.\n\n"); return -ENOENT; } printf(" ESP: %s", esp_path); if (!sd_id128_is_null(partition)) printf(" (/dev/disk/by-partuuid/" SD_ID128_UUID_FORMAT_STR ")", SD_ID128_FORMAT_VAL(partition)); printf("\n"); r = enumerate_binaries(esp_path, "EFI/systemd", NULL, &last, &is_first); if (r < 0) goto fail; k = enumerate_binaries(esp_path, "EFI/BOOT", "boot", &last, &is_first); if (k < 0) { r = k; goto fail; } if (last) /* let's output the last entry now, since now we know that there will be no more, and can draw the tree glyph properly */ printf(" %s %s%s\n", is_first ? "File:" : " ", special_glyph(SPECIAL_GLYPH_TREE_RIGHT), last); if (r == 0 && !arg_quiet) log_info("systemd-boot not installed in ESP."); if (k == 0 && !arg_quiet) log_info("No default/fallback boot loader installed in ESP."); printf("\n"); return 0; fail: errno = -r; printf(" File: (can't access %s: %m)\n\n", esp_path); return r; } static void read_efi_var(const char *variable, char **ret) { int r; r = efi_get_variable_string(variable, ret); if (r < 0 && r != -ENOENT) log_warning_errno(r, "Failed to read EFI variable %s: %m", variable); } static void print_yes_no_line(bool first, bool good, const char *name) { printf("%s%s %s\n", first ? " Features: " : " ", COLOR_MARK_BOOL(good), name); } int verb_status(int argc, char *argv[], void *userdata) { sd_id128_t esp_uuid = SD_ID128_NULL, xbootldr_uuid = SD_ID128_NULL; dev_t esp_devid = 0, xbootldr_devid = 0; int r, k; r = acquire_esp(/* unprivileged_mode= */ -1, /* graceful= */ false, NULL, NULL, NULL, &esp_uuid, &esp_devid); if (arg_print_esp_path) { if (r == -EACCES) /* If we couldn't acquire the ESP path, log about access errors (which is the only * error the find_esp_and_warn() won't log on its own) */ return log_error_errno(r, "Failed to determine ESP location: %m"); if (r < 0) return r; puts(arg_esp_path); return 0; } r = acquire_xbootldr(/* unprivileged_mode= */ -1, &xbootldr_uuid, &xbootldr_devid); if (arg_print_dollar_boot_path) { if (r == -EACCES) return log_error_errno(r, "Failed to determine XBOOTLDR partition: %m"); if (r < 0) return r; const char *path = arg_dollar_boot_path(); if (!path) return log_error_errno(SYNTHETIC_ERRNO(EACCES), "Failed to determine XBOOTLDR location: %m"); puts(path); return 0; } r = 0; /* If we couldn't determine the path, then don't consider that a problem from here on, just * show what we can show */ pager_open(arg_pager_flags); if (!arg_root && is_efi_boot()) { static const struct { uint64_t flag; const char *name; } loader_flags[] = { { EFI_LOADER_FEATURE_BOOT_COUNTING, "Boot counting" }, { EFI_LOADER_FEATURE_CONFIG_TIMEOUT, "Menu timeout control" }, { EFI_LOADER_FEATURE_CONFIG_TIMEOUT_ONE_SHOT, "One-shot menu timeout control" }, { EFI_LOADER_FEATURE_ENTRY_DEFAULT, "Default entry control" }, { EFI_LOADER_FEATURE_ENTRY_ONESHOT, "One-shot entry control" }, { EFI_LOADER_FEATURE_XBOOTLDR, "Support for XBOOTLDR partition" }, { EFI_LOADER_FEATURE_RANDOM_SEED, "Support for passing random seed to OS" }, { EFI_LOADER_FEATURE_LOAD_DRIVER, "Load drop-in drivers" }, { EFI_LOADER_FEATURE_SORT_KEY, "Support Type #1 sort-key field" }, { EFI_LOADER_FEATURE_SAVED_ENTRY, "Support @saved pseudo-entry" }, { EFI_LOADER_FEATURE_DEVICETREE, "Support Type #1 devicetree field" }, { EFI_LOADER_FEATURE_SECUREBOOT_ENROLL, "Enroll SecureBoot keys" }, { EFI_LOADER_FEATURE_RETAIN_SHIM, "Retain SHIM protocols" }, { EFI_LOADER_FEATURE_MENU_DISABLE, "Menu can be disabled" }, }; static const struct { uint64_t flag; const char *name; } stub_flags[] = { { EFI_STUB_FEATURE_REPORT_BOOT_PARTITION, "Stub sets ESP information" }, { EFI_STUB_FEATURE_PICK_UP_CREDENTIALS, "Picks up credentials from boot partition" }, { EFI_STUB_FEATURE_PICK_UP_SYSEXTS, "Picks up system extension images from boot partition" }, { EFI_STUB_FEATURE_THREE_PCRS, "Measures kernel+command line+sysexts" }, { EFI_STUB_FEATURE_RANDOM_SEED, "Support for passing random seed to OS" }, { EFI_STUB_FEATURE_CMDLINE_ADDONS, "Pick up .cmdline from addons" }, { EFI_STUB_FEATURE_CMDLINE_SMBIOS, "Pick up .cmdline from SMBIOS Type 11" }, { EFI_STUB_FEATURE_DEVICETREE_ADDONS, "Pick up .dtb from addons" }, }; _cleanup_free_ char *fw_type = NULL, *fw_info = NULL, *loader = NULL, *loader_path = NULL, *stub = NULL; sd_id128_t loader_part_uuid = SD_ID128_NULL; uint64_t loader_features = 0, stub_features = 0; Tpm2Support s; int have; read_efi_var(EFI_LOADER_VARIABLE(LoaderFirmwareType), &fw_type); read_efi_var(EFI_LOADER_VARIABLE(LoaderFirmwareInfo), &fw_info); read_efi_var(EFI_LOADER_VARIABLE(LoaderInfo), &loader); read_efi_var(EFI_LOADER_VARIABLE(StubInfo), &stub); read_efi_var(EFI_LOADER_VARIABLE(LoaderImageIdentifier), &loader_path); (void) efi_loader_get_features(&loader_features); (void) efi_stub_get_features(&stub_features); if (loader_path) efi_tilt_backslashes(loader_path); k = efi_loader_get_device_part_uuid(&loader_part_uuid); if (k < 0 && k != -ENOENT) r = log_warning_errno(k, "Failed to read EFI variable LoaderDevicePartUUID: %m"); SecureBootMode secure = efi_get_secure_boot_mode(); printf("%sSystem:%s\n", ansi_underline(), ansi_normal()); printf(" Firmware: %s%s (%s)%s\n", ansi_highlight(), strna(fw_type), strna(fw_info), ansi_normal()); printf(" Firmware Arch: %s\n", get_efi_arch()); printf(" Secure Boot: %s%s%s", IN_SET(secure, SECURE_BOOT_USER, SECURE_BOOT_DEPLOYED) ? ansi_highlight_green() : ansi_normal(), enabled_disabled(IN_SET(secure, SECURE_BOOT_USER, SECURE_BOOT_DEPLOYED)), ansi_normal()); if (secure != SECURE_BOOT_DISABLED) printf(" (%s)\n", secure_boot_mode_to_string(secure)); else printf("\n"); s = tpm2_support(); printf(" TPM2 Support: %s%s%s\n", FLAGS_SET(s, TPM2_SUPPORT_FIRMWARE|TPM2_SUPPORT_DRIVER) ? ansi_highlight_green() : (s & (TPM2_SUPPORT_FIRMWARE|TPM2_SUPPORT_DRIVER)) != 0 ? ansi_highlight_red() : ansi_highlight_yellow(), FLAGS_SET(s, TPM2_SUPPORT_FIRMWARE|TPM2_SUPPORT_DRIVER) ? "yes" : (s & TPM2_SUPPORT_FIRMWARE) ? "firmware only, driver unavailable" : (s & TPM2_SUPPORT_DRIVER) ? "driver only, firmware unavailable" : "no", ansi_normal()); k = efi_measured_uki(LOG_DEBUG); if (k > 0) printf(" Measured UKI: %syes%s\n", ansi_highlight_green(), ansi_normal()); else if (k == 0) printf(" Measured UKI: no\n"); else { errno = -k; printf(" Measured UKI: %sfailed%s (%m)\n", ansi_highlight_red(), ansi_normal()); } k = efi_get_reboot_to_firmware(); if (k > 0) printf(" Boot into FW: %sactive%s\n", ansi_highlight_yellow(), ansi_normal()); else if (k == 0) printf(" Boot into FW: supported\n"); else if (k == -EOPNOTSUPP) printf(" Boot into FW: not supported\n"); else { errno = -k; printf(" Boot into FW: %sfailed%s (%m)\n", ansi_highlight_red(), ansi_normal()); } printf("\n"); printf("%sCurrent Boot Loader:%s\n", ansi_underline(), ansi_normal()); printf(" Product: %s%s%s\n", ansi_highlight(), strna(loader), ansi_normal()); for (size_t i = 0; i < ELEMENTSOF(loader_flags); i++) print_yes_no_line(i == 0, FLAGS_SET(loader_features, loader_flags[i].flag), loader_flags[i].name); sd_id128_t bootloader_esp_uuid; bool have_bootloader_esp_uuid = efi_loader_get_device_part_uuid(&bootloader_esp_uuid) >= 0; print_yes_no_line(false, have_bootloader_esp_uuid, "Boot loader sets ESP information"); if (have_bootloader_esp_uuid && !sd_id128_is_null(esp_uuid) && !sd_id128_equal(esp_uuid, bootloader_esp_uuid)) printf("WARNING: The boot loader reports a different ESP UUID than detected ("SD_ID128_UUID_FORMAT_STR" vs. "SD_ID128_UUID_FORMAT_STR")!\n", SD_ID128_FORMAT_VAL(bootloader_esp_uuid), SD_ID128_FORMAT_VAL(esp_uuid)); if (stub) { printf(" Stub: %s\n", stub); for (size_t i = 0; i < ELEMENTSOF(stub_flags); i++) print_yes_no_line(i == 0, FLAGS_SET(stub_features, stub_flags[i].flag), stub_flags[i].name); } if (!sd_id128_is_null(loader_part_uuid)) printf(" ESP: /dev/disk/by-partuuid/" SD_ID128_UUID_FORMAT_STR "\n", SD_ID128_FORMAT_VAL(loader_part_uuid)); else printf(" ESP: n/a\n"); printf(" File: %s%s\n", special_glyph(SPECIAL_GLYPH_TREE_RIGHT), strna(loader_path)); printf("\n"); printf("%sRandom Seed:%s\n", ansi_underline(), ansi_normal()); have = access(EFIVAR_PATH(EFI_LOADER_VARIABLE(LoaderSystemToken)), F_OK) >= 0; printf(" System Token: %s\n", have ? "set" : "not set"); if (arg_esp_path) { _cleanup_free_ char *p = NULL; p = path_join(arg_esp_path, "/loader/random-seed"); if (!p) return log_oom(); have = access(p, F_OK) >= 0; printf(" Exists: %s\n", yes_no(have)); } printf("\n"); } else printf("%sSystem:%s\n" "Not booted with EFI\n\n", ansi_underline(), ansi_normal()); if (arg_esp_path) RET_GATHER(r, status_binaries(arg_esp_path, esp_uuid)); if (!arg_root && is_efi_boot()) RET_GATHER(r, status_variables()); if (arg_esp_path || arg_xbootldr_path) { _cleanup_(boot_config_free) BootConfig config = BOOT_CONFIG_NULL; k = boot_config_load_and_select(&config, arg_esp_path, esp_devid, arg_xbootldr_path, xbootldr_devid); RET_GATHER(r, k); if (k >= 0) RET_GATHER(r, status_entries(&config, arg_esp_path, esp_uuid, arg_xbootldr_path, xbootldr_uuid)); } return r; } static int ref_file(Hashmap *known_files, const char *fn, int increment) { char *k = NULL; int n, r; assert(known_files); /* just gracefully ignore this. This way the caller doesn't have to verify whether the bootloader entry is relevant */ if (!fn) return 0; n = PTR_TO_INT(hashmap_get2(known_files, fn, (void**)&k)); n += increment; assert(n >= 0); if (n == 0) { (void) hashmap_remove(known_files, fn); free(k); } else if (!k) { _cleanup_free_ char *t = NULL; t = strdup(fn); if (!t) return -ENOMEM; r = hashmap_put(known_files, t, INT_TO_PTR(n)); if (r < 0) return r; TAKE_PTR(t); } else { r = hashmap_update(known_files, fn, INT_TO_PTR(n)); if (r < 0) return r; } return n; } static void deref_unlink_file(Hashmap *known_files, const char *fn, const char *root) { _cleanup_free_ char *path = NULL; int r; assert(known_files); /* just gracefully ignore this. This way the caller doesn't have to verify whether the bootloader entry is relevant */ if (!fn || !root) return; r = ref_file(known_files, fn, -1); if (r < 0) return (void) log_warning_errno(r, "Failed to deref \"%s\", ignoring: %m", fn); if (r > 0) return; if (arg_dry_run) { r = chase_and_access(fn, root, CHASE_PREFIX_ROOT|CHASE_PROHIBIT_SYMLINKS, F_OK, &path); if (r < 0) log_info_errno(r, "Unable to determine whether \"%s\" exists, ignoring: %m", fn); else log_info("Would remove \"%s\"", path); return; } r = chase_and_unlink(fn, root, CHASE_PREFIX_ROOT|CHASE_PROHIBIT_SYMLINKS, 0, &path); if (r >= 0) log_info("Removed \"%s\"", path); else if (r != -ENOENT) return (void) log_warning_errno(r, "Failed to remove \"%s\", ignoring: %m", fn); _cleanup_free_ char *d = NULL; if (path_extract_directory(fn, &d) >= 0 && !path_equal(d, "/")) { r = chase_and_unlink(d, root, CHASE_PREFIX_ROOT|CHASE_PROHIBIT_SYMLINKS, AT_REMOVEDIR, NULL); if (r < 0 && !IN_SET(r, -ENOTEMPTY, -ENOENT)) log_warning_errno(r, "Failed to remove directory \"%s\", ignoring: %m", d); } } static int count_known_files(const BootConfig *config, const char* root, Hashmap **ret_known_files) { _cleanup_(hashmap_free_free_keyp) Hashmap *known_files = NULL; int r; assert(config); assert(ret_known_files); known_files = hashmap_new(&path_hash_ops); if (!known_files) return -ENOMEM; for (size_t i = 0; i < config->n_entries; i++) { const BootEntry *e = config->entries + i; if (!path_equal(e->root, root)) continue; r = ref_file(known_files, e->kernel, +1); if (r < 0) return r; r = ref_file(known_files, e->efi, +1); if (r < 0) return r; STRV_FOREACH(s, e->initrd) { r = ref_file(known_files, *s, +1); if (r < 0) return r; } r = ref_file(known_files, e->device_tree, +1); if (r < 0) return r; STRV_FOREACH(s, e->device_tree_overlay) { r = ref_file(known_files, *s, +1); if (r < 0) return r; } } *ret_known_files = TAKE_PTR(known_files); return 0; } static int boot_config_find_in(const BootConfig *config, const char *root, const char *id) { assert(config); if (!root || !id) return -ENOENT; for (size_t i = 0; i < config->n_entries; i++) if (path_equal(config->entries[i].root, root) && fnmatch(id, config->entries[i].id, FNM_CASEFOLD) == 0) return i; return -ENOENT; } static int unlink_entry(const BootConfig *config, const char *root, const char *id) { _cleanup_(hashmap_free_free_keyp) Hashmap *known_files = NULL; const BootEntry *e = NULL; int r; assert(config); r = count_known_files(config, root, &known_files); if (r < 0) return log_error_errno(r, "Failed to count files in %s: %m", root); r = boot_config_find_in(config, root, id); if (r < 0) return r; if (r == config->default_entry) log_warning("%s is the default boot entry", id); if (r == config->selected_entry) log_warning("%s is the selected boot entry", id); e = &config->entries[r]; deref_unlink_file(known_files, e->kernel, e->root); deref_unlink_file(known_files, e->efi, e->root); STRV_FOREACH(s, e->initrd) deref_unlink_file(known_files, *s, e->root); deref_unlink_file(known_files, e->device_tree, e->root); STRV_FOREACH(s, e->device_tree_overlay) deref_unlink_file(known_files, *s, e->root); if (arg_dry_run) log_info("Would remove \"%s\"", e->path); else { r = chase_and_unlink(e->path, root, CHASE_PROHIBIT_SYMLINKS, 0, NULL); if (r < 0) return log_error_errno(r, "Failed to remove \"%s\": %m", e->path); log_info("Removed %s", e->path); } return 0; } static int list_remove_orphaned_file( RecurseDirEvent event, const char *path, int dir_fd, int inode_fd, const struct dirent *de, const struct statx *sx, void *userdata) { Hashmap *known_files = userdata; assert(path); assert(known_files); if (event != RECURSE_DIR_ENTRY) return RECURSE_DIR_CONTINUE; if (hashmap_get(known_files, path)) return RECURSE_DIR_CONTINUE; /* keep! */ if (arg_dry_run) log_info("Would remove %s", path); else if (unlinkat(dir_fd, de->d_name, 0) < 0) log_warning_errno(errno, "Failed to remove \"%s\", ignoring: %m", path); else log_info("Removed %s", path); return RECURSE_DIR_CONTINUE; } static int cleanup_orphaned_files( const BootConfig *config, const char *root) { _cleanup_(hashmap_free_free_keyp) Hashmap *known_files = NULL; _cleanup_free_ char *full = NULL, *p = NULL; _cleanup_close_ int dir_fd = -EBADF; int r; assert(config); assert(root); log_info("Cleaning %s", root); r = settle_entry_token(); if (r < 0) return r; r = count_known_files(config, root, &known_files); if (r < 0) return log_error_errno(r, "Failed to count files in %s: %m", root); dir_fd = chase_and_open(arg_entry_token, root, CHASE_PREFIX_ROOT|CHASE_PROHIBIT_SYMLINKS, O_DIRECTORY|O_CLOEXEC, &full); if (dir_fd == -ENOENT) return 0; if (dir_fd < 0) return log_error_errno(dir_fd, "Failed to open '%s/%s': %m", root, arg_entry_token); p = path_join("/", arg_entry_token); if (!p) return log_oom(); r = recurse_dir(dir_fd, p, 0, UINT_MAX, RECURSE_DIR_SORT, list_remove_orphaned_file, known_files); if (r < 0) return log_error_errno(r, "Failed to cleanup %s: %m", full); return r; } int verb_list(int argc, char *argv[], void *userdata) { _cleanup_(boot_config_free) BootConfig config = BOOT_CONFIG_NULL; dev_t esp_devid = 0, xbootldr_devid = 0; int r; /* If we lack privileges we invoke find_esp_and_warn() in "unprivileged mode" here, which does two * things: turn off logging about access errors and turn off potentially privileged device probing. * Here we're interested in the latter but not the former, hence request the mode, and log about * EACCES. */ r = acquire_esp(/* unprivileged_mode= */ -1, /* graceful= */ false, NULL, NULL, NULL, NULL, &esp_devid); if (r == -EACCES) /* We really need the ESP path for this call, hence also log about access errors */ return log_error_errno(r, "Failed to determine ESP location: %m"); if (r < 0) return r; r = acquire_xbootldr(/* unprivileged_mode= */ -1, NULL, &xbootldr_devid); if (r == -EACCES) return log_error_errno(r, "Failed to determine XBOOTLDR partition: %m"); if (r < 0) return r; r = boot_config_load_and_select(&config, arg_esp_path, esp_devid, arg_xbootldr_path, xbootldr_devid); if (r < 0) return r; if (config.n_entries == 0 && FLAGS_SET(arg_json_format_flags, JSON_FORMAT_OFF)) { log_info("No boot loader entries found."); return 0; } if (streq(argv[0], "list")) { pager_open(arg_pager_flags); return show_boot_entries(&config, arg_json_format_flags); } else if (streq(argv[0], "cleanup")) { if (arg_xbootldr_path && xbootldr_devid != esp_devid) cleanup_orphaned_files(&config, arg_xbootldr_path); return cleanup_orphaned_files(&config, arg_esp_path); } else { assert(streq(argv[0], "unlink")); if (arg_xbootldr_path && xbootldr_devid != esp_devid) { r = unlink_entry(&config, arg_xbootldr_path, argv[1]); if (r == 0 || r != -ENOENT) return r; } return unlink_entry(&config, arg_esp_path, argv[1]); } } int verb_unlink(int argc, char *argv[], void *userdata) { return verb_list(argc, argv, userdata); }