| /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
| |
| #include <sys/mman.h> |
| #include <unistd.h> |
| |
| #include "bootctl.h" |
| #include "bootctl-status.h" |
| #include "bootctl-util.h" |
| #include "bootspec.h" |
| #include "chase-symlinks.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_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_symlinks_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; |
| _cleanup_close_ int fd = -EBADF; |
| |
| if (!endswith_no_case(de->d_name, ".efi")) |
| continue; |
| |
| if (prefix && !startswith_no_case(de->d_name, prefix)) |
| continue; |
| |
| fd = openat(dirfd(d), de->d_name, O_RDONLY|O_CLOEXEC); |
| if (fd < 0) |
| return log_error_errno(errno, "Failed to open \"%s/%s\" for reading: %m", p, de->d_name); |
| |
| r = get_file_version(fd, &v); |
| if (r < 0) |
| 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 > 0) |
| r = asprintf(previous, "/%s/%s (%s%s%s)", path, de->d_name, ansi_highlight(), v, ansi_normal()); |
| else |
| r = asprintf(previous, "/%s/%s", path, de->d_name); |
| 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) { |
| printf("\n"); |
| return r; |
| } |
| |
| k = enumerate_binaries(esp_path, "EFI/BOOT", "boot", &last, &is_first); |
| if (k < 0) { |
| printf("\n"); |
| return k; |
| } |
| |
| 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; |
| } |
| |
| 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= */ geteuid() != 0, /* 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); |
| } |
| |
| r = acquire_xbootldr(/* unprivileged_mode= */ geteuid() != 0, &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); |
| } |
| |
| if (arg_print_esp_path || arg_print_dollar_boot_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" }, |
| }; |
| 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" }, |
| }; |
| _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: %sd (%s)\n", |
| enable_disable(IN_SET(secure, SECURE_BOOT_USER, SECURE_BOOT_DEPLOYED)), |
| secure_boot_mode_to_string(secure)); |
| |
| 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_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) { |
| k = status_binaries(arg_esp_path, esp_uuid); |
| if (k < 0) |
| r = k; |
| } |
| |
| if (!arg_root && is_efi_boot()) { |
| k = status_variables(); |
| if (k < 0) |
| r = k; |
| } |
| |
| 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); |
| if (k < 0) |
| r = k; |
| else { |
| k = status_entries(&config, |
| arg_esp_path, esp_uuid, |
| arg_xbootldr_path, xbootldr_uuid); |
| if (k < 0) |
| r = k; |
| } |
| } |
| |
| 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_symlinks_and_access(fn, root, CHASE_PREFIX_ROOT|CHASE_PROHIBIT_SYMLINKS, F_OK, &path, NULL); |
| 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_symlinks_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_symlinks_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_symlinks_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 = -1; |
| int r = -1; |
| |
| 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_symlinks_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= */ geteuid() != 0, /* 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= */ geteuid() != 0, 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); |
| } |
