| /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
| |
| #include <ctype.h> |
| #include <errno.h> |
| #include <getopt.h> |
| #include <limits.h> |
| #include <linux/magic.h> |
| #include <stdbool.h> |
| #include <stdlib.h> |
| #include <sys/mman.h> |
| #include <unistd.h> |
| |
| #include "sd-id128.h" |
| |
| #include "alloc-util.h" |
| #include "blkid-util.h" |
| #include "bootspec.h" |
| #include "copy.h" |
| #include "dirent-util.h" |
| #include "efi-api.h" |
| #include "efi-loader.h" |
| #include "efivars.h" |
| #include "env-file.h" |
| #include "env-util.h" |
| #include "escape.h" |
| #include "fd-util.h" |
| #include "fileio.h" |
| #include "find-esp.h" |
| #include "fs-util.h" |
| #include "glyph-util.h" |
| #include "main-func.h" |
| #include "mkdir.h" |
| #include "os-util.h" |
| #include "pager.h" |
| #include "parse-argument.h" |
| #include "parse-util.h" |
| #include "pretty-print.h" |
| #include "random-util.h" |
| #include "rm-rf.h" |
| #include "stat-util.h" |
| #include "stdio-util.h" |
| #include "string-table.h" |
| #include "string-util.h" |
| #include "strv.h" |
| #include "sync-util.h" |
| #include "terminal-util.h" |
| #include "tmpfile-util.h" |
| #include "tmpfile-util-label.h" |
| #include "umask-util.h" |
| #include "utf8.h" |
| #include "util.h" |
| #include "verbs.h" |
| #include "virt.h" |
| |
| static char *arg_esp_path = NULL; |
| static char *arg_xbootldr_path = NULL; |
| static bool arg_print_esp_path = false; |
| static bool arg_print_dollar_boot_path = false; |
| static bool arg_touch_variables = true; |
| static PagerFlags arg_pager_flags = 0; |
| static bool arg_graceful = false; |
| static int arg_make_entry_directory = false; /* tri-state: < 0 for automatic logic */ |
| static sd_id128_t arg_machine_id = SD_ID128_NULL; |
| static char *arg_install_layout = NULL; |
| static enum { |
| ARG_ENTRY_TOKEN_MACHINE_ID, |
| ARG_ENTRY_TOKEN_OS_IMAGE_ID, |
| ARG_ENTRY_TOKEN_OS_ID, |
| ARG_ENTRY_TOKEN_LITERAL, |
| ARG_ENTRY_TOKEN_AUTO, |
| } arg_entry_token_type = ARG_ENTRY_TOKEN_AUTO; |
| static char *arg_entry_token = NULL; |
| static JsonFormatFlags arg_json_format_flags = JSON_FORMAT_OFF; |
| |
| STATIC_DESTRUCTOR_REGISTER(arg_esp_path, freep); |
| STATIC_DESTRUCTOR_REGISTER(arg_xbootldr_path, freep); |
| STATIC_DESTRUCTOR_REGISTER(arg_install_layout, freep); |
| STATIC_DESTRUCTOR_REGISTER(arg_entry_token, freep); |
| |
| static const char *arg_dollar_boot_path(void) { |
| /* $BOOT shall be the XBOOTLDR partition if it exists, and otherwise the ESP */ |
| return arg_xbootldr_path ?: arg_esp_path; |
| } |
| |
| static int acquire_esp( |
| bool unprivileged_mode, |
| bool graceful, |
| uint32_t *ret_part, |
| uint64_t *ret_pstart, |
| uint64_t *ret_psize, |
| sd_id128_t *ret_uuid, |
| dev_t *ret_devid) { |
| |
| char *np; |
| int r; |
| |
| /* Find the ESP, and log about errors. Note that find_esp_and_warn() will log in all error cases on |
| * its own, except for ENOKEY (which is good, we want to show our own message in that case, |
| * suggesting use of --esp-path=) and EACCESS (only when we request unprivileged mode; in this case |
| * we simply eat up the error here, so that --list and --status work too, without noise about |
| * this). */ |
| |
| r = find_esp_and_warn(arg_esp_path, unprivileged_mode, &np, ret_part, ret_pstart, ret_psize, ret_uuid, ret_devid); |
| if (r == -ENOKEY) { |
| if (graceful) |
| return log_info_errno(r, "Couldn't find EFI system partition, skipping."); |
| |
| return log_error_errno(r, |
| "Couldn't find EFI system partition. It is recommended to mount it to /boot or /efi.\n" |
| "Alternatively, use --esp-path= to specify path to mount point."); |
| } |
| if (r < 0) |
| return r; |
| |
| free_and_replace(arg_esp_path, np); |
| log_debug("Using EFI System Partition at %s.", arg_esp_path); |
| |
| return 1; |
| } |
| |
| static int acquire_xbootldr( |
| bool unprivileged_mode, |
| sd_id128_t *ret_uuid, |
| dev_t *ret_devid) { |
| |
| char *np; |
| int r; |
| |
| r = find_xbootldr_and_warn(arg_xbootldr_path, unprivileged_mode, &np, ret_uuid, ret_devid); |
| if (r == -ENOKEY) { |
| log_debug_errno(r, "Didn't find an XBOOTLDR partition, using the ESP as $BOOT."); |
| arg_xbootldr_path = mfree(arg_xbootldr_path); |
| |
| if (ret_uuid) |
| *ret_uuid = SD_ID128_NULL; |
| if (ret_devid) |
| *ret_devid = 0; |
| return 0; |
| } |
| if (r < 0) |
| return r; |
| |
| free_and_replace(arg_xbootldr_path, np); |
| log_debug("Using XBOOTLDR partition at %s as $BOOT.", arg_xbootldr_path); |
| |
| return 1; |
| } |
| |
| static int load_etc_machine_id(void) { |
| int r; |
| |
| r = sd_id128_get_machine(&arg_machine_id); |
| if (IN_SET(r, -ENOENT, -ENOMEDIUM)) /* Not set or empty */ |
| return 0; |
| if (r < 0) |
| return log_error_errno(r, "Failed to get machine-id: %m"); |
| |
| log_debug("Loaded machine ID %s from /etc/machine-id.", SD_ID128_TO_STRING(arg_machine_id)); |
| return 0; |
| } |
| |
| static int load_etc_machine_info(void) { |
| /* systemd v250 added support to store the kernel-install layout setting and the machine ID to use |
| * for setting up the ESP in /etc/machine-info. The newer /etc/kernel/entry-token file, as well as |
| * the $layout field in /etc/kernel/install.conf are better replacements for this though, hence this |
| * has been deprecated and is only returned for compatibility. */ |
| _cleanup_free_ char *s = NULL, *layout = NULL; |
| int r; |
| |
| r = parse_env_file(NULL, "/etc/machine-info", |
| "KERNEL_INSTALL_LAYOUT", &layout, |
| "KERNEL_INSTALL_MACHINE_ID", &s); |
| if (r == -ENOENT) |
| return 0; |
| if (r < 0) |
| return log_error_errno(r, "Failed to parse /etc/machine-info: %m"); |
| |
| if (!isempty(s)) { |
| log_notice("Read $KERNEL_INSTALL_MACHINE_ID from /etc/machine-info. Please move it to /etc/kernel/entry-token."); |
| |
| r = sd_id128_from_string(s, &arg_machine_id); |
| if (r < 0) |
| return log_error_errno(r, "Failed to parse KERNEL_INSTALL_MACHINE_ID=%s in /etc/machine-info: %m", s); |
| |
| log_debug("Loaded KERNEL_INSTALL_MACHINE_ID=%s from KERNEL_INSTALL_MACHINE_ID in /etc/machine-info.", |
| SD_ID128_TO_STRING(arg_machine_id)); |
| } |
| |
| if (!isempty(layout)) { |
| log_notice("Read $KERNEL_INSTALL_LAYOUT from /etc/machine-info. Please move it to the layout= setting of /etc/kernel/install.conf."); |
| |
| log_debug("KERNEL_INSTALL_LAYOUT=%s is specified in /etc/machine-info.", layout); |
| free_and_replace(arg_install_layout, layout); |
| } |
| |
| return 0; |
| } |
| |
| static int load_etc_kernel_install_conf(void) { |
| _cleanup_free_ char *layout = NULL; |
| int r; |
| |
| r = parse_env_file(NULL, "/etc/kernel/install.conf", |
| "layout", &layout); |
| if (r == -ENOENT) |
| return 0; |
| if (r < 0) |
| return log_error_errno(r, "Failed to parse /etc/kernel/install.conf: %m"); |
| |
| if (!isempty(layout)) { |
| log_debug("layout=%s is specified in /etc/machine-info.", layout); |
| free_and_replace(arg_install_layout, layout); |
| } |
| |
| return 0; |
| } |
| |
| static int settle_entry_token(void) { |
| int r; |
| |
| switch (arg_entry_token_type) { |
| |
| case ARG_ENTRY_TOKEN_AUTO: { |
| _cleanup_free_ char *buf = NULL; |
| r = read_one_line_file("/etc/kernel/entry-token", &buf); |
| if (r < 0 && r != -ENOENT) |
| return log_error_errno(r, "Failed to read /etc/kernel/entry-token: %m"); |
| |
| if (!isempty(buf)) { |
| free_and_replace(arg_entry_token, buf); |
| arg_entry_token_type = ARG_ENTRY_TOKEN_LITERAL; |
| } else if (sd_id128_is_null(arg_machine_id)) { |
| _cleanup_free_ char *id = NULL, *image_id = NULL; |
| |
| r = parse_os_release(NULL, |
| "IMAGE_ID", &image_id, |
| "ID", &id); |
| if (r < 0) |
| return log_error_errno(r, "Failed to load /etc/os-release: %m"); |
| |
| if (!isempty(image_id)) { |
| free_and_replace(arg_entry_token, image_id); |
| arg_entry_token_type = ARG_ENTRY_TOKEN_OS_IMAGE_ID; |
| } else if (!isempty(id)) { |
| free_and_replace(arg_entry_token, id); |
| arg_entry_token_type = ARG_ENTRY_TOKEN_OS_ID; |
| } else |
| return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "No machine ID set, and /etc/os-release carries no ID=/IMAGE_ID= fields."); |
| } else { |
| r = free_and_strdup_warn(&arg_entry_token, SD_ID128_TO_STRING(arg_machine_id)); |
| if (r < 0) |
| return r; |
| |
| arg_entry_token_type = ARG_ENTRY_TOKEN_MACHINE_ID; |
| } |
| |
| break; |
| } |
| |
| case ARG_ENTRY_TOKEN_MACHINE_ID: |
| if (sd_id128_is_null(arg_machine_id)) |
| return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "No machine ID set."); |
| |
| r = free_and_strdup_warn(&arg_entry_token, SD_ID128_TO_STRING(arg_machine_id)); |
| if (r < 0) |
| return r; |
| |
| break; |
| |
| case ARG_ENTRY_TOKEN_OS_IMAGE_ID: { |
| _cleanup_free_ char *buf = NULL; |
| |
| r = parse_os_release(NULL, "IMAGE_ID", &buf); |
| if (r < 0) |
| return log_error_errno(r, "Failed to load /etc/os-release: %m"); |
| |
| if (isempty(buf)) |
| return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "IMAGE_ID= field not set in /etc/os-release."); |
| |
| free_and_replace(arg_entry_token, buf); |
| break; |
| } |
| |
| case ARG_ENTRY_TOKEN_OS_ID: { |
| _cleanup_free_ char *buf = NULL; |
| |
| r = parse_os_release(NULL, "ID", &buf); |
| if (r < 0) |
| return log_error_errno(r, "Failed to load /etc/os-release: %m"); |
| |
| if (isempty(buf)) |
| return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "ID= field not set in /etc/os-release."); |
| |
| free_and_replace(arg_entry_token, buf); |
| break; |
| } |
| |
| case ARG_ENTRY_TOKEN_LITERAL: |
| assert(!isempty(arg_entry_token)); /* already filled in by command line parser */ |
| break; |
| } |
| |
| if (isempty(arg_entry_token) || !string_is_safe(arg_entry_token)) |
| return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Selected entry token not valid: %s", arg_entry_token); |
| |
| log_debug("Using entry token: %s", arg_entry_token); |
| return 0; |
| } |
| |
| static bool use_boot_loader_spec_type1(void) { |
| /* If the layout is not specified, or if it is set explicitly to "bls" we assume Boot Loader |
| * Specification Type #1 is the chosen format for our boot loader entries */ |
| return !arg_install_layout || streq(arg_install_layout, "bls"); |
| } |
| |
| static int settle_make_entry_directory(void) { |
| int r; |
| |
| r = load_etc_machine_id(); |
| if (r < 0) |
| return r; |
| |
| r = load_etc_machine_info(); |
| if (r < 0) |
| return r; |
| |
| r = load_etc_kernel_install_conf(); |
| if (r < 0) |
| return r; |
| |
| r = settle_entry_token(); |
| if (r < 0) |
| return r; |
| |
| bool layout_type1 = use_boot_loader_spec_type1(); |
| if (arg_make_entry_directory < 0) { /* Automatic mode */ |
| if (layout_type1) { |
| if (arg_entry_token == ARG_ENTRY_TOKEN_MACHINE_ID) { |
| r = path_is_temporary_fs("/etc/machine-id"); |
| if (r < 0) |
| return log_debug_errno(r, "Couldn't determine whether /etc/machine-id is on a temporary file system: %m"); |
| |
| arg_make_entry_directory = r == 0; |
| } else |
| arg_make_entry_directory = true; |
| } else |
| arg_make_entry_directory = false; |
| } |
| |
| if (arg_make_entry_directory > 0 && !layout_type1) |
| return log_error_errno(SYNTHETIC_ERRNO(EINVAL), |
| "KERNEL_INSTALL_LAYOUT=%s is configured, but Boot Loader Specification Type #1 entry directory creation was requested.", |
| arg_install_layout); |
| |
| return 0; |
| } |
| |
| /* search for "#### LoaderInfo: systemd-boot 218 ####" string inside the binary */ |
| static int get_file_version(int fd, char **v) { |
| struct stat st; |
| char *buf; |
| const char *s, *e; |
| char *x = NULL; |
| int r; |
| |
| assert(fd >= 0); |
| assert(v); |
| |
| if (fstat(fd, &st) < 0) |
| return log_error_errno(errno, "Failed to stat EFI binary: %m"); |
| |
| r = stat_verify_regular(&st); |
| if (r < 0) |
| return log_error_errno(r, "EFI binary is not a regular file: %m"); |
| |
| if (st.st_size < 27 || file_offset_beyond_memory_size(st.st_size)) { |
| *v = NULL; |
| return 0; |
| } |
| |
| buf = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0); |
| if (buf == MAP_FAILED) |
| return log_error_errno(errno, "Failed to memory map EFI binary: %m"); |
| |
| s = mempmem_safe(buf, st.st_size - 8, "#### LoaderInfo: ", 17); |
| if (!s) |
| goto finish; |
| |
| e = memmem_safe(s, st.st_size - (s - buf), " ####", 5); |
| if (!e || e - s < 3) { |
| r = log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Malformed version string."); |
| goto finish; |
| } |
| |
| x = strndup(s, e - s); |
| if (!x) { |
| r = log_oom(); |
| goto finish; |
| } |
| r = 1; |
| |
| finish: |
| (void) munmap(buf, st.st_size); |
| *v = x; |
| return r; |
| } |
| |
| static int enumerate_binaries(const char *esp_path, const char *path, const char *prefix) { |
| _cleanup_closedir_ DIR *d = NULL; |
| const char *p; |
| int c = 0, r; |
| |
| assert(esp_path); |
| assert(path); |
| |
| p = prefix_roota(esp_path, path); |
| d = opendir(p); |
| if (!d) { |
| if (errno == ENOENT) |
| return 0; |
| |
| return log_error_errno(errno, "Failed to read \"%s\": %m", p); |
| } |
| |
| FOREACH_DIRENT(de, d, break) { |
| _cleanup_free_ char *v = NULL; |
| _cleanup_close_ int fd = -1; |
| |
| 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 (r > 0) |
| printf(" File: %s/%s/%s (%s%s%s)\n", special_glyph(SPECIAL_GLYPH_TREE_RIGHT), path, de->d_name, ansi_highlight(), v, ansi_normal()); |
| else |
| printf(" File: %s/%s/%s\n", special_glyph(SPECIAL_GLYPH_TREE_RIGHT), path, de->d_name); |
| |
| c++; |
| } |
| |
| return c; |
| } |
| |
| static int status_binaries(const char *esp_path, sd_id128_t partition) { |
| int r; |
| |
| printf("Available Boot Loaders on ESP:\n"); |
| |
| 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); |
| if (r < 0) |
| goto finish; |
| if (r == 0) |
| log_info("systemd-boot not installed in ESP."); |
| |
| r = enumerate_binaries(esp_path, "EFI/BOOT", "boot"); |
| if (r < 0) |
| goto finish; |
| if (r == 0) |
| log_info("No default/fallback boot loader installed in ESP."); |
| |
| r = 0; |
| |
| finish: |
| printf("\n"); |
| return r; |
| } |
| |
| static int print_efi_option(uint16_t id, bool in_order) { |
| _cleanup_free_ char *title = NULL; |
| _cleanup_free_ char *path = NULL; |
| sd_id128_t partition; |
| bool active; |
| int r; |
| |
| r = efi_get_boot_option(id, &title, &partition, &path, &active); |
| if (r < 0) |
| return r; |
| |
| /* print only configured entries with partition information */ |
| if (!path || sd_id128_is_null(partition)) |
| return 0; |
| |
| efi_tilt_backslashes(path); |
| |
| 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"); |
| |
| return 0; |
| } |
| |
| static int status_variables(void) { |
| _cleanup_free_ uint16_t *options = NULL, *order = NULL; |
| int n_options, n_order; |
| |
| 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 */ |
| printf("Boot Loaders Listed in EFI Variables:\n"); |
| for (int i = 0; i < n_order; i++) |
| print_efi_option(order[i], 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; |
| |
| print_efi_option(options[i], false); |
| |
| next_option: |
| continue; |
| } |
| |
| return 0; |
| } |
| |
| static int boot_entry_file_check(const char *root, const char *p) { |
| _cleanup_free_ char *path = NULL; |
| |
| path = path_join(root, p); |
| if (!path) |
| return log_oom(); |
| |
| return RET_NERRNO(access(path, F_OK)); |
| } |
| |
| static void boot_entry_file_list(const char *field, const char *root, const char *p, int *ret_status) { |
| int status = boot_entry_file_check(root, p); |
| |
| printf("%13s%s ", strempty(field), field ? ":" : " "); |
| if (status < 0) { |
| errno = -status; |
| printf("%s%s%s (%m)\n", ansi_highlight_red(), p, ansi_normal()); |
| } else |
| printf("%s\n", p); |
| |
| if (*ret_status == 0 && status < 0) |
| *ret_status = status; |
| } |
| |
| static const char* const boot_entry_type_table[_BOOT_ENTRY_TYPE_MAX] = { |
| [BOOT_ENTRY_CONF] = "Boot Loader Specification Type #1 (.conf)", |
| [BOOT_ENTRY_UNIFIED] = "Boot Loader Specification Type #2 (.efi)", |
| [BOOT_ENTRY_LOADER] = "Reported by Boot Loader", |
| [BOOT_ENTRY_LOADER_AUTO] = "Automatic", |
| }; |
| |
| DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(boot_entry_type, BootEntryType); |
| |
| static int boot_entry_show( |
| const BootEntry *e, |
| bool show_as_default, |
| bool show_as_selected, |
| bool show_reported) { |
| |
| int status = 0; |
| |
| /* Returns 0 on success, negative on processing error, and positive if something is wrong with the |
| boot entry itself. */ |
| |
| assert(e); |
| |
| printf(" type: %s\n", |
| boot_entry_type_to_string(e->type)); |
| |
| printf(" title: %s%s%s", |
| ansi_highlight(), boot_entry_title(e), ansi_normal()); |
| |
| if (show_as_default) |
| printf(" %s(default)%s", |
| ansi_highlight_green(), ansi_normal()); |
| |
| if (show_as_selected) |
| printf(" %s(selected)%s", |
| ansi_highlight_magenta(), ansi_normal()); |
| |
| if (show_reported) { |
| if (e->type == BOOT_ENTRY_LOADER) |
| printf(" %s(reported/absent)%s", |
| ansi_highlight_red(), ansi_normal()); |
| else if (!e->reported_by_loader && e->type != BOOT_ENTRY_LOADER_AUTO) |
| printf(" %s(not reported/new)%s", |
| ansi_highlight_green(), ansi_normal()); |
| } |
| |
| putchar('\n'); |
| |
| if (e->id) |
| printf(" id: %s\n", e->id); |
| if (e->path) { |
| _cleanup_free_ char *link = NULL; |
| |
| /* Let's urlify the link to make it easy to view in an editor, but only if it is a text |
| * file. Unified images are binary ELFs, and EFI variables are not pure text either. */ |
| if (e->type == BOOT_ENTRY_CONF) |
| (void) terminal_urlify_path(e->path, NULL, &link); |
| |
| printf(" source: %s\n", link ?: e->path); |
| } |
| if (e->sort_key) |
| printf(" sort-key: %s\n", e->sort_key); |
| if (e->version) |
| printf(" version: %s\n", e->version); |
| if (e->machine_id) |
| printf(" machine-id: %s\n", e->machine_id); |
| if (e->architecture) |
| printf(" architecture: %s\n", e->architecture); |
| if (e->kernel) |
| boot_entry_file_list("linux", e->root, e->kernel, &status); |
| |
| STRV_FOREACH(s, e->initrd) |
| boot_entry_file_list(s == e->initrd ? "initrd" : NULL, |
| e->root, |
| *s, |
| &status); |
| |
| if (!strv_isempty(e->options)) { |
| _cleanup_free_ char *t = NULL, *t2 = NULL; |
| _cleanup_strv_free_ char **ts = NULL; |
| |
| t = strv_join(e->options, " "); |
| if (!t) |
| return log_oom(); |
| |
| ts = strv_split_newlines(t); |
| if (!ts) |
| return log_oom(); |
| |
| t2 = strv_join(ts, "\n "); |
| if (!t2) |
| return log_oom(); |
| |
| printf(" options: %s\n", t2); |
| } |
| |
| if (e->device_tree) |
| boot_entry_file_list("devicetree", e->root, e->device_tree, &status); |
| |
| STRV_FOREACH(s, e->device_tree_overlay) |
| boot_entry_file_list(s == e->device_tree_overlay ? "devicetree-overlay" : NULL, |
| e->root, |
| *s, |
| &status); |
| |
| return -status; |
| } |
| |
| static int status_entries( |
| const char *esp_path, |
| sd_id128_t esp_partition_uuid, |
| const char *xbootldr_path, |
| sd_id128_t xbootldr_partition_uuid) { |
| |
| _cleanup_(boot_config_free) BootConfig config = BOOT_CONFIG_NULL; |
| sd_id128_t dollar_boot_partition_uuid; |
| const char *dollar_boot_path; |
| int r; |
| |
| 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("Boot Loader Entries:\n" |
| " $BOOT: %s", 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)); |
| printf("\n\n"); |
| |
| r = boot_config_load(&config, esp_path, xbootldr_path); |
| if (r < 0) |
| return r; |
| |
| r = boot_config_select_special_entries(&config); |
| if (r < 0) |
| return r; |
| |
| if (config.default_entry < 0) |
| printf("%zu entries, no entry could be determined as default.\n", config.n_entries); |
| else { |
| printf("Default Boot Loader Entry:\n"); |
| |
| r = boot_entry_show( |
| 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 compare_product(const char *a, const char *b) { |
| size_t x, y; |
| |
| assert(a); |
| assert(b); |
| |
| x = strcspn(a, " "); |
| y = strcspn(b, " "); |
| if (x != y) |
| return x < y ? -1 : x > y ? 1 : 0; |
| |
| return strncmp(a, b, x); |
| } |
| |
| static int compare_version(const char *a, const char *b) { |
| assert(a); |
| assert(b); |
| |
| a += strcspn(a, " "); |
| a += strspn(a, " "); |
| b += strcspn(b, " "); |
| b += strspn(b, " "); |
| |
| return strverscmp_improved(a, b); |
| } |
| |
| static int version_check(int fd_from, const char *from, int fd_to, const char *to) { |
| _cleanup_free_ char *a = NULL, *b = NULL; |
| int r; |
| |
| assert(fd_from >= 0); |
| assert(from); |
| assert(fd_to >= 0); |
| assert(to); |
| |
| r = get_file_version(fd_from, &a); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return log_notice_errno(SYNTHETIC_ERRNO(EREMOTE), |
| "Source file \"%s\" does not carry version information!", |
| from); |
| |
| r = get_file_version(fd_to, &b); |
| if (r < 0) |
| return r; |
| if (r == 0 || compare_product(a, b) != 0) |
| return log_notice_errno(SYNTHETIC_ERRNO(EREMOTE), |
| "Skipping \"%s\", since it's owned by another boot loader.", |
| to); |
| |
| r = compare_version(a, b); |
| if (r < 0) |
| return log_warning_errno(SYNTHETIC_ERRNO(ESTALE), "Skipping \"%s\", since newer boot loader version in place already.", to); |
| else if (r == 0) |
| return log_info_errno(SYNTHETIC_ERRNO(ESTALE), "Skipping \"%s\", since same boot loader version in place already.", to); |
| |
| return 0; |
| } |
| |
| static int copy_file_with_version_check(const char *from, const char *to, bool force) { |
| _cleanup_close_ int fd_from = -1, fd_to = -1; |
| _cleanup_free_ char *t = NULL; |
| int r; |
| |
| fd_from = open(from, O_RDONLY|O_CLOEXEC|O_NOCTTY); |
| if (fd_from < 0) |
| return log_error_errno(errno, "Failed to open \"%s\" for reading: %m", from); |
| |
| if (!force) { |
| fd_to = open(to, O_RDONLY|O_CLOEXEC|O_NOCTTY); |
| if (fd_to < 0) { |
| if (errno != ENOENT) |
| return log_error_errno(errno, "Failed to open \"%s\" for reading: %m", to); |
| } else { |
| r = version_check(fd_from, from, fd_to, to); |
| if (r < 0) |
| return r; |
| |
| if (lseek(fd_from, 0, SEEK_SET) == (off_t) -1) |
| return log_error_errno(errno, "Failed to seek in \"%s\": %m", from); |
| |
| fd_to = safe_close(fd_to); |
| } |
| } |
| |
| r = tempfn_random(to, NULL, &t); |
| if (r < 0) |
| return log_oom(); |
| |
| RUN_WITH_UMASK(0000) { |
| fd_to = open(t, O_WRONLY|O_CREAT|O_CLOEXEC|O_EXCL|O_NOFOLLOW, 0644); |
| if (fd_to < 0) |
| return log_error_errno(errno, "Failed to open \"%s\" for writing: %m", t); |
| } |
| |
| r = copy_bytes(fd_from, fd_to, UINT64_MAX, COPY_REFLINK); |
| if (r < 0) { |
| (void) unlink(t); |
| return log_error_errno(r, "Failed to copy data from \"%s\" to \"%s\": %m", from, t); |
| } |
| |
| (void) copy_times(fd_from, fd_to, 0); |
| |
| r = fsync_full(fd_to); |
| if (r < 0) { |
| (void) unlink_noerrno(t); |
| return log_error_errno(r, "Failed to copy data from \"%s\" to \"%s\": %m", from, t); |
| } |
| |
| if (renameat(AT_FDCWD, t, AT_FDCWD, to) < 0) { |
| (void) unlink_noerrno(t); |
| return log_error_errno(errno, "Failed to rename \"%s\" to \"%s\": %m", t, to); |
| } |
| |
| log_info("Copied \"%s\" to \"%s\".", from, to); |
| |
| return 0; |
| } |
| |
| static int mkdir_one(const char *prefix, const char *suffix) { |
| _cleanup_free_ char *p = NULL; |
| |
| p = path_join(prefix, suffix); |
| if (mkdir(p, 0700) < 0) { |
| if (errno != EEXIST) |
| return log_error_errno(errno, "Failed to create \"%s\": %m", p); |
| } else |
| log_info("Created \"%s\".", p); |
| |
| return 0; |
| } |
| |
| static const char *const esp_subdirs[] = { |
| /* The directories to place in the ESP */ |
| "EFI", |
| "EFI/systemd", |
| "EFI/BOOT", |
| "loader", |
| NULL |
| }; |
| |
| static const char *const dollar_boot_subdirs[] = { |
| /* The directories to place in the XBOOTLDR partition or the ESP, depending what exists */ |
| "loader", |
| "loader/entries", /* Type #1 entries */ |
| "EFI", |
| "EFI/Linux", /* Type #2 entries */ |
| NULL |
| }; |
| |
| static int create_subdirs(const char *root, const char * const *subdirs) { |
| int r; |
| |
| STRV_FOREACH(i, subdirs) { |
| r = mkdir_one(root, *i); |
| if (r < 0) |
| return r; |
| } |
| |
| return 0; |
| } |
| |
| static int copy_one_file(const char *esp_path, const char *name, bool force) { |
| const char *e; |
| char *p, *q, *dest_name, *s; |
| int r; |
| |
| dest_name = strdupa_safe(name); |
| s = endswith_no_case(dest_name, ".signed"); |
| if (s) |
| *s = 0; |
| |
| p = strjoina(BOOTLIBDIR "/", name); |
| q = strjoina(esp_path, "/EFI/systemd/", dest_name); |
| r = copy_file_with_version_check(p, q, force); |
| |
| e = startswith(dest_name, "systemd-boot"); |
| if (e) { |
| int k; |
| char *v; |
| |
| /* Create the EFI default boot loader name (specified for removable devices) */ |
| v = strjoina(esp_path, "/EFI/BOOT/BOOT", e); |
| ascii_strupper(strrchr(v, '/') + 1); |
| |
| k = copy_file_with_version_check(p, v, force); |
| if (k < 0 && r == 0) |
| r = k; |
| } |
| |
| return r; |
| } |
| |
| static int install_binaries(const char *esp_path, bool force) { |
| _cleanup_closedir_ DIR *d = NULL; |
| int r = 0; |
| |
| d = opendir(BOOTLIBDIR); |
| if (!d) |
| return log_error_errno(errno, "Failed to open \""BOOTLIBDIR"\": %m"); |
| |
| FOREACH_DIRENT(de, d, return log_error_errno(errno, "Failed to read \""BOOTLIBDIR"\": %m")) { |
| int k; |
| |
| if (!endswith_no_case(de->d_name, ".efi") && !endswith_no_case(de->d_name, ".efi.signed")) |
| continue; |
| |
| /* skip the .efi file, if there's a .signed version of it */ |
| if (endswith_no_case(de->d_name, ".efi")) { |
| _cleanup_free_ const char *s = strjoin(de->d_name, ".signed"); |
| if (!s) |
| return log_oom(); |
| if (faccessat(dirfd(d), s, F_OK, 0) >= 0) |
| continue; |
| } |
| |
| k = copy_one_file(esp_path, de->d_name, force); |
| /* Don't propagate an error code if no update necessary, installed version already equal or |
| * newer version, or other boot loader in place. */ |
| if (arg_graceful && IN_SET(k, -ESTALE, -EREMOTE)) |
| continue; |
| if (k < 0 && r == 0) |
| r = k; |
| } |
| |
| return r; |
| } |
| |
| static bool same_entry(uint16_t id, sd_id128_t uuid, const char *path) { |
| _cleanup_free_ char *opath = NULL; |
| sd_id128_t ouuid; |
| int r; |
| |
| r = efi_get_boot_option(id, NULL, &ouuid, &opath, NULL); |
| if (r < 0) |
| return false; |
| if (!sd_id128_equal(uuid, ouuid)) |
| return false; |
| |
| /* Some motherboards convert the path to uppercase under certain circumstances |
| * (e.g. after booting into the Boot Menu in the ASUS ROG STRIX B350-F GAMING), |
| * so use case-insensitive checking */ |
| if (!strcaseeq_ptr(path, opath)) |
| return false; |
| |
| return true; |
| } |
| |
| static int find_slot(sd_id128_t uuid, const char *path, uint16_t *id) { |
| _cleanup_free_ uint16_t *options = NULL; |
| int n, i; |
| |
| n = efi_get_boot_options(&options); |
| if (n < 0) |
| return n; |
| |
| /* find already existing systemd-boot entry */ |
| for (i = 0; i < n; i++) |
| if (same_entry(options[i], uuid, path)) { |
| *id = options[i]; |
| return 1; |
| } |
| |
| /* find free slot in the sorted BootXXXX variable list */ |
| for (i = 0; i < n; i++) |
| if (i != options[i]) { |
| *id = i; |
| return 0; |
| } |
| |
| /* use the next one */ |
| if (i == 0xffff) |
| return -ENOSPC; |
| *id = i; |
| return 0; |
| } |
| |
| static int insert_into_order(uint16_t slot, bool first) { |
| _cleanup_free_ uint16_t *order = NULL; |
| uint16_t *t; |
| int n; |
| |
| n = efi_get_boot_order(&order); |
| if (n <= 0) |
| /* no entry, add us */ |
| return efi_set_boot_order(&slot, 1); |
| |
| /* are we the first and only one? */ |
| if (n == 1 && order[0] == slot) |
| return 0; |
| |
| /* are we already in the boot order? */ |
| for (int i = 0; i < n; i++) { |
| if (order[i] != slot) |
| continue; |
| |
| /* we do not require to be the first one, all is fine */ |
| if (!first) |
| return 0; |
| |
| /* move us to the first slot */ |
| memmove(order + 1, order, i * sizeof(uint16_t)); |
| order[0] = slot; |
| return efi_set_boot_order(order, n); |
| } |
| |
| /* extend array */ |
| t = reallocarray(order, n + 1, sizeof(uint16_t)); |
| if (!t) |
| return -ENOMEM; |
| order = t; |
| |
| /* add us to the top or end of the list */ |
| if (first) { |
| memmove(order + 1, order, n * sizeof(uint16_t)); |
| order[0] = slot; |
| } else |
| order[n] = slot; |
| |
| return efi_set_boot_order(order, n + 1); |
| } |
| |
| static int remove_from_order(uint16_t slot) { |
| _cleanup_free_ uint16_t *order = NULL; |
| int n; |
| |
| n = efi_get_boot_order(&order); |
| if (n <= 0) |
| return n; |
| |
| for (int i = 0; i < n; i++) { |
| if (order[i] != slot) |
| continue; |
| |
| if (i + 1 < n) |
| memmove(order + i, order + i+1, (n - i) * sizeof(uint16_t)); |
| return efi_set_boot_order(order, n - 1); |
| } |
| |
| return 0; |
| } |
| |
| static int install_variables(const char *esp_path, |
| uint32_t part, uint64_t pstart, uint64_t psize, |
| sd_id128_t uuid, const char *path, |
| bool first) { |
| const char *p; |
| uint16_t slot; |
| int r; |
| |
| if (!is_efi_boot()) { |
| log_warning("Not booted with EFI, skipping EFI variable setup."); |
| return 0; |
| } |
| |
| p = prefix_roota(esp_path, path); |
| if (access(p, F_OK) < 0) { |
| if (errno == ENOENT) |
| return 0; |
| |
| return log_error_errno(errno, "Cannot access \"%s\": %m", p); |
| } |
| |
| r = find_slot(uuid, path, &slot); |
| if (r < 0) |
| return log_error_errno(r, |
| r == -ENOENT ? |
| "Failed to access EFI variables. Is the \"efivarfs\" filesystem mounted?" : |
| "Failed to determine current boot order: %m"); |
| |
| if (first || r == 0) { |
| r = efi_add_boot_option(slot, "Linux Boot Manager", |
| part, pstart, psize, |
| uuid, path); |
| if (r < 0) |
| return log_error_errno(r, "Failed to create EFI Boot variable entry: %m"); |
| |
| log_info("Created EFI boot entry \"Linux Boot Manager\"."); |
| } |
| |
| return insert_into_order(slot, first); |
| } |
| |
| static int remove_boot_efi(const char *esp_path) { |
| _cleanup_closedir_ DIR *d = NULL; |
| const char *p; |
| int r, c = 0; |
| |
| p = prefix_roota(esp_path, "/EFI/BOOT"); |
| d = opendir(p); |
| if (!d) { |
| if (errno == ENOENT) |
| return 0; |
| |
| return log_error_errno(errno, "Failed to open directory \"%s\": %m", p); |
| } |
| |
| FOREACH_DIRENT(de, d, break) { |
| _cleanup_close_ int fd = -1; |
| _cleanup_free_ char *v = NULL; |
| |
| if (!endswith_no_case(de->d_name, ".efi")) |
| continue; |
| |
| if (!startswith_no_case(de->d_name, "boot")) |
| 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 (r > 0 && startswith(v, "systemd-boot ")) { |
| r = unlinkat(dirfd(d), de->d_name, 0); |
| if (r < 0) |
| return log_error_errno(errno, "Failed to remove \"%s/%s\": %m", p, de->d_name); |
| |
| log_info("Removed \"%s/%s\".", p, de->d_name); |
| } |
| |
| c++; |
| } |
| |
| return c; |
| } |
| |
| static int rmdir_one(const char *prefix, const char *suffix) { |
| const char *p; |
| |
| p = prefix_roota(prefix, suffix); |
| if (rmdir(p) < 0) { |
| bool ignore = IN_SET(errno, ENOENT, ENOTEMPTY); |
| |
| log_full_errno(ignore ? LOG_DEBUG : LOG_ERR, errno, |
| "Failed to remove directory \"%s\": %m", p); |
| if (!ignore) |
| return -errno; |
| } else |
| log_info("Removed \"%s\".", p); |
| |
| return 0; |
| } |
| |
| static int remove_subdirs(const char *root, const char *const *subdirs) { |
| int r, q; |
| |
| /* We use recursion here to destroy the directories in reverse order. Which should be safe given how |
| * short the array is. */ |
| |
| if (!subdirs[0]) /* A the end of the list */ |
| return 0; |
| |
| r = remove_subdirs(root, subdirs + 1); |
| q = rmdir_one(root, subdirs[0]); |
| |
| return r < 0 ? r : q; |
| } |
| |
| static int remove_entry_directory(const char *root) { |
| assert(root); |
| assert(arg_make_entry_directory >= 0); |
| |
| if (!arg_make_entry_directory || !arg_entry_token) |
| return 0; |
| |
| return rmdir_one(root, arg_entry_token); |
| } |
| |
| static int remove_binaries(const char *esp_path) { |
| const char *p; |
| int r, q; |
| |
| p = prefix_roota(esp_path, "/EFI/systemd"); |
| r = rm_rf(p, REMOVE_ROOT|REMOVE_PHYSICAL); |
| |
| q = remove_boot_efi(esp_path); |
| if (q < 0 && r == 0) |
| r = q; |
| |
| return r; |
| } |
| |
| static int remove_file(const char *root, const char *file) { |
| const char *p; |
| |
| assert(root); |
| assert(file); |
| |
| p = prefix_roota(root, file); |
| if (unlink(p) < 0) { |
| log_full_errno(errno == ENOENT ? LOG_DEBUG : LOG_ERR, errno, |
| "Failed to unlink file \"%s\": %m", p); |
| |
| return errno == ENOENT ? 0 : -errno; |
| } |
| |
| log_info("Removed \"%s\".", p); |
| return 1; |
| } |
| |
| static int remove_variables(sd_id128_t uuid, const char *path, bool in_order) { |
| uint16_t slot; |
| int r; |
| |
| if (!is_efi_boot()) |
| return 0; |
| |
| r = find_slot(uuid, path, &slot); |
| if (r != 1) |
| return 0; |
| |
| r = efi_remove_boot_option(slot); |
| if (r < 0) |
| return r; |
| |
| if (in_order) |
| return remove_from_order(slot); |
| |
| return 0; |
| } |
| |
| static int remove_loader_variables(void) { |
| int r = 0; |
| |
| /* Remove all persistent loader variables we define */ |
| |
| FOREACH_STRING(var, |
| EFI_LOADER_VARIABLE(LoaderConfigTimeout), |
| EFI_LOADER_VARIABLE(LoaderConfigTimeoutOneShot), |
| EFI_LOADER_VARIABLE(LoaderEntryDefault), |
| EFI_LOADER_VARIABLE(LoaderEntryOneShot), |
| EFI_LOADER_VARIABLE(LoaderSystemToken)){ |
| |
| int q; |
| |
| q = efi_set_variable(var, NULL, 0); |
| if (q == -ENOENT) |
| continue; |
| if (q < 0) { |
| log_warning_errno(q, "Failed to remove EFI variable %s: %m", var); |
| if (r >= 0) |
| r = q; |
| } else |
| log_info("Removed EFI variable %s.", var); |
| } |
| |
| return r; |
| } |
| |
| static int install_loader_config(const char *esp_path) { |
| _cleanup_(unlink_and_freep) char *t = NULL; |
| _cleanup_fclose_ FILE *f = NULL; |
| const char *p; |
| int r; |
| |
| assert(arg_make_entry_directory >= 0); |
| |
| p = prefix_roota(esp_path, "/loader/loader.conf"); |
| if (access(p, F_OK) >= 0) /* Silently skip creation if the file already exists (early check) */ |
| return 0; |
| |
| r = fopen_tmpfile_linkable(p, O_WRONLY|O_CLOEXEC, &t, &f); |
| if (r < 0) |
| return log_error_errno(r, "Failed to open \"%s\" for writing: %m", p); |
| |
| fprintf(f, "#timeout 3\n" |
| "#console-mode keep\n"); |
| |
| if (arg_make_entry_directory) { |
| assert(arg_entry_token); |
| fprintf(f, "default %s-*\n", arg_entry_token); |
| } |
| |
| r = flink_tmpfile(f, t, p); |
| if (r == -EEXIST) |
| return 0; /* Silently skip creation if the file exists now (recheck) */ |
| if (r < 0) |
| return log_error_errno(r, "Failed to move \"%s\" into place: %m", p); |
| |
| t = mfree(t); |
| return 1; |
| } |
| |
| static int install_loader_specification(const char *root) { |
| _cleanup_(unlink_and_freep) char *t = NULL; |
| _cleanup_fclose_ FILE *f = NULL; |
| _cleanup_free_ char *p = NULL; |
| int r; |
| |
| p = path_join(root, "/loader/entries.srel"); |
| if (!p) |
| return log_oom(); |
| |
| if (access(p, F_OK) >= 0) /* Silently skip creation if the file already exists (early check) */ |
| return 0; |
| |
| r = fopen_tmpfile_linkable(p, O_WRONLY|O_CLOEXEC, &t, &f); |
| if (r < 0) |
| return log_error_errno(r, "Failed to open \"%s\" for writing: %m", p); |
| |
| fprintf(f, "type1\n"); |
| |
| r = flink_tmpfile(f, t, p); |
| if (r == -EEXIST) |
| return 0; /* Silently skip creation if the file exists now (recheck) */ |
| if (r < 0) |
| return log_error_errno(r, "Failed to move \"%s\" into place: %m", p); |
| |
| t = mfree(t); |
| return 1; |
| } |
| |
| static int install_entry_directory(const char *root) { |
| assert(root); |
| assert(arg_make_entry_directory >= 0); |
| |
| if (!arg_make_entry_directory) |
| return 0; |
| |
| assert(arg_entry_token); |
| return mkdir_one(root, arg_entry_token); |
| } |
| |
| static int install_entry_token(void) { |
| int r; |
| |
| assert(arg_make_entry_directory >= 0); |
| assert(arg_entry_token); |
| |
| /* Let's save the used entry token in /etc/kernel/entry-token if we used it to create the entry |
| * directory, or if anything else but the machine ID */ |
| |
| if (!arg_make_entry_directory && arg_entry_token_type == ARG_ENTRY_TOKEN_MACHINE_ID) |
| return 0; |
| |
| r = write_string_file("/etc/kernel/entry-token", arg_entry_token, WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_ATOMIC|WRITE_STRING_FILE_MKDIR_0755); |
| if (r < 0) |
| return log_error_errno(r, "Failed to write entry token '%s' to /etc/kernel/entry-token", arg_entry_token); |
| |
| return 0; |
| } |
| |
| static int help(int argc, char *argv[], void *userdata) { |
| _cleanup_free_ char *link = NULL; |
| int r; |
| |
| r = terminal_urlify_man("bootctl", "1", &link); |
| if (r < 0) |
| return log_oom(); |
| |
| printf("%1$s [OPTIONS...] COMMAND ...\n" |
| "\n%5$sControl EFI firmware boot settings and manage boot loader.%6$s\n" |
| "\n%3$sGeneric EFI Firmware/Boot Loader Commands:%4$s\n" |
| " status Show status of installed boot loader and EFI variables\n" |
| " reboot-to-firmware [BOOL]\n" |
| " Query or set reboot-to-firmware EFI flag\n" |
| " systemd-efi-options [STRING]\n" |
| " Query or set system options string in EFI variable\n" |
| "\n%3$sBoot Loader Specification Commands:%4$s\n" |
| " list List boot loader entries\n" |
| " set-default ID Set default boot loader entry\n" |
| " set-oneshot ID Set default boot loader entry, for next boot only\n" |
| " set-timeout SECONDS Set the menu timeout\n" |
| " set-timeout-oneshot SECONDS\n" |
| " Set the menu timeout for the next boot only\n" |
| "\n%3$ssystemd-boot Commands:%4$s\n" |
| " install Install systemd-boot to the ESP and EFI variables\n" |
| " update Update systemd-boot in the ESP and EFI variables\n" |
| " remove Remove systemd-boot from the ESP and EFI variables\n" |
| " is-installed Test whether systemd-boot is installed in the ESP\n" |
| " random-seed Initialize random seed in ESP and EFI variables\n" |
| "\n%3$sOptions:%4$s\n" |
| " -h --help Show this help\n" |
| " --version Print version\n" |
| " --esp-path=PATH Path to the EFI System Partition (ESP)\n" |
| " --boot-path=PATH Path to the $BOOT partition\n" |
| " -p --print-esp-path Print path to the EFI System Partition\n" |
| " -x --print-boot-path Print path to the $BOOT partition\n" |
| " --no-variables Don't touch EFI variables\n" |
| " --no-pager Do not pipe output into a pager\n" |
| " --graceful Don't fail when the ESP cannot be found or EFI\n" |
| " variables cannot be written\n" |
| " --make-entry-directory=yes|no|auto\n" |
| " Create $BOOT/ENTRY-TOKEN/ directory\n" |
| " --entry-token=machine-id|os-id|os-image-id|auto|literal:…\n" |
| " Entry token to use for this installation\n" |
| " --json=pretty|short|off\n" |
| " Generate JSON output\n" |
| "\nSee the %2$s for details.\n", |
| program_invocation_short_name, |
| link, |
| ansi_underline(), |
| ansi_normal(), |
| ansi_highlight(), |
| ansi_normal()); |
| |
| return 0; |
| } |
| |
| static int parse_argv(int argc, char *argv[]) { |
| enum { |
| ARG_ESP_PATH = 0x100, |
| ARG_BOOT_PATH, |
| ARG_VERSION, |
| ARG_NO_VARIABLES, |
| ARG_NO_PAGER, |
| ARG_GRACEFUL, |
| ARG_MAKE_ENTRY_DIRECTORY, |
| ARG_ENTRY_TOKEN, |
| ARG_JSON, |
| }; |
| |
| static const struct option options[] = { |
| { "help", no_argument, NULL, 'h' }, |
| { "version", no_argument, NULL, ARG_VERSION }, |
| { "esp-path", required_argument, NULL, ARG_ESP_PATH }, |
| { "path", required_argument, NULL, ARG_ESP_PATH }, /* Compatibility alias */ |
| { "boot-path", required_argument, NULL, ARG_BOOT_PATH }, |
| { "print-esp-path", no_argument, NULL, 'p' }, |
| { "print-path", no_argument, NULL, 'p' }, /* Compatibility alias */ |
| { "print-boot-path", no_argument, NULL, 'x' }, |
| { "no-variables", no_argument, NULL, ARG_NO_VARIABLES }, |
| { "no-pager", no_argument, NULL, ARG_NO_PAGER }, |
| { "graceful", no_argument, NULL, ARG_GRACEFUL }, |
| { "make-entry-directory", required_argument, NULL, ARG_MAKE_ENTRY_DIRECTORY }, |
| { "make-machine-id-directory", required_argument, NULL, ARG_MAKE_ENTRY_DIRECTORY }, /* Compatibility alias */ |
| { "entry-token", required_argument, NULL, ARG_ENTRY_TOKEN }, |
| { "json", required_argument, NULL, ARG_JSON }, |
| {} |
| }; |
| |
| int c, r; |
| bool b; |
| |
| assert(argc >= 0); |
| assert(argv); |
| |
| while ((c = getopt_long(argc, argv, "hpx", options, NULL)) >= 0) |
| switch (c) { |
| |
| case 'h': |
| help(0, NULL, NULL); |
| return 0; |
| |
| case ARG_VERSION: |
| return version(); |
| |
| case ARG_ESP_PATH: |
| r = free_and_strdup(&arg_esp_path, optarg); |
| if (r < 0) |
| return log_oom(); |
| break; |
| |
| case ARG_BOOT_PATH: |
| r = free_and_strdup(&arg_xbootldr_path, optarg); |
| if (r < 0) |
| return log_oom(); |
| break; |
| |
| case 'p': |
| if (arg_print_dollar_boot_path) |
| return log_error_errno(SYNTHETIC_ERRNO(EINVAL), |
| "--print-boot-path/-x cannot be combined with --print-esp-path/-p"); |
| arg_print_esp_path = true; |
| break; |
| |
| case 'x': |
| if (arg_print_esp_path) |
| return log_error_errno(SYNTHETIC_ERRNO(EINVAL), |
| "--print-boot-path/-x cannot be combined with --print-esp-path/-p"); |
| arg_print_dollar_boot_path = true; |
| break; |
| |
| case ARG_NO_VARIABLES: |
| arg_touch_variables = false; |
| break; |
| |
| case ARG_NO_PAGER: |
| arg_pager_flags |= PAGER_DISABLE; |
| break; |
| |
| case ARG_GRACEFUL: |
| arg_graceful = true; |
| break; |
| |
| case ARG_ENTRY_TOKEN: { |
| const char *e; |
| |
| if (streq(optarg, "machine-id")) { |
| arg_entry_token_type = ARG_ENTRY_TOKEN_MACHINE_ID; |
| arg_entry_token = mfree(arg_entry_token); |
| } else if (streq(optarg, "os-image-id")) { |
| arg_entry_token_type = ARG_ENTRY_TOKEN_OS_IMAGE_ID; |
| arg_entry_token = mfree(arg_entry_token); |
| } else if (streq(optarg, "os-id")) { |
| arg_entry_token_type = ARG_ENTRY_TOKEN_OS_ID; |
| arg_entry_token = mfree(arg_entry_token); |
| } else if ((e = startswith(optarg, "literal:"))) { |
| arg_entry_token_type = ARG_ENTRY_TOKEN_LITERAL; |
| |
| r = free_and_strdup_warn(&arg_entry_token, e); |
| if (r < 0) |
| return r; |
| } else |
| return log_error_errno(SYNTHETIC_ERRNO(EINVAL), |
| "Unexpected parameter for --entry-token=: %s", optarg); |
| |
| break; |
| } |
| |
| case ARG_MAKE_ENTRY_DIRECTORY: |
| if (streq(optarg, "auto")) /* retained for backwards compatibility */ |
| arg_make_entry_directory = -1; /* yes if machine-id is permanent */ |
| else { |
| r = parse_boolean_argument("--make-entry-directory=", optarg, &b); |
| if (r < 0) |
| return r; |
| |
| arg_make_entry_directory = b; |
| } |
| break; |
| |
| case ARG_JSON: |
| r = parse_json_argument(optarg, &arg_json_format_flags); |
| if (r <= 0) |
| return r; |
| |
| break; |
| |
| case '?': |
| return -EINVAL; |
| |
| default: |
| assert_not_reached(); |
| } |
| |
| return 1; |
| } |
| |
| 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); |
| } |
| |
| static int are_we_installed(void) { |
| int r; |
| |
| r = acquire_esp(/* privileged_mode= */ false, /* graceful= */ false, NULL, NULL, NULL, NULL, NULL); |
| if (r < 0) |
| return r; |
| |
| /* Tests whether systemd-boot is installed. It's not obvious what to use as check here: we could |
| * check EFI variables, we could check what binary /EFI/BOOT/BOOT*.EFI points to, or whether the |
| * loader entries directory exists. Here we opted to check whether /EFI/systemd/ is non-empty, which |
| * should be a suitable and very minimal check for a number of reasons: |
| * |
| * → The check is architecture independent (i.e. we check if any systemd-boot loader is installed, |
| * not a specific one.) |
| * |
| * → It doesn't assume we are the only boot loader (i.e doesn't check if we own the main |
| * /EFI/BOOT/BOOT*.EFI fallback binary. |
| * |
| * → It specifically checks for systemd-boot, not for other boot loaders (which a check for |
| * /boot/loader/entries would do). */ |
| |
| _cleanup_free_ char *p = path_join(arg_esp_path, "/EFI/systemd/"); |
| if (!p) |
| return log_oom(); |
| |
| log_debug("Checking whether %s contains any files…", p); |
| r = dir_is_empty(p); |
| if (r < 0 && r != -ENOENT) |
| return log_error_errno(r, "Failed to check whether %s contains any files: %m", p); |
| |
| return r == 0; |
| } |
| |
| static 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 location: %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 (is_efi_boot()) { |
| static const struct { |
| uint64_t flag; |
| const char *name; |
| } 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" }, |
| }; |
| |
| _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; |
| 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); |
| |
| 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("System:\n"); |
| printf(" Firmware: %s%s (%s)%s\n", ansi_highlight(), strna(fw_type), strna(fw_info), ansi_normal()); |
| printf(" Secure Boot: %sd (%s)\n", |
| enable_disable(IN_SET(secure, SECURE_BOOT_USER, SECURE_BOOT_DEPLOYED)), |
| secure_boot_mode_to_string(secure)); |
| printf(" TPM2 Support: %s\n", yes_no(efi_has_tpm2())); |
| |
| 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("Current Boot Loader:\n"); |
| printf(" Product: %s%s%s\n", ansi_highlight(), strna(loader), ansi_normal()); |
| |
| for (size_t i = 0; i < ELEMENTSOF(flags); i++) |
| print_yes_no_line(i == 0, FLAGS_SET(loader_features, flags[i].flag), 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_equal(esp_uuid, bootloader_esp_uuid)) |
| printf("WARNING: The boot loader reports a different ESP UUID than detected!\n"); |
| |
| if (stub) |
| printf(" Stub: %s\n", stub); |
| 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("Random Seed:\n"); |
| have = access(EFIVAR_PATH(EFI_LOADER_VARIABLE(LoaderRandomSeed)), F_OK) >= 0; |
| printf(" Passed to OS: %s\n", yes_no(have)); |
| 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("System:\n Not booted with EFI\n\n"); |
| |
| if (arg_esp_path) { |
| k = status_binaries(arg_esp_path, esp_uuid); |
| if (k < 0) |
| r = k; |
| } |
| |
| if (is_efi_boot()) { |
| k = status_variables(); |
| if (k < 0) |
| r = k; |
| } |
| |
| if (arg_esp_path || arg_xbootldr_path) { |
| /* If XBOOTLDR and ESP actually refer to the same block device, suppress XBOOTLDR, since it would find the same entries twice */ |
| bool same = arg_esp_path && arg_xbootldr_path && devid_set_and_equal(esp_devid, xbootldr_devid); |
| |
| k = status_entries( |
| arg_esp_path, |
| esp_uuid, |
| same ? NULL : arg_xbootldr_path, |
| same ? SD_ID128_NULL : xbootldr_uuid); |
| if (k < 0) |
| r = k; |
| } |
| |
| return r; |
| } |
| |
| static int verb_list(int argc, char *argv[], void *userdata) { |
| _cleanup_(boot_config_free) BootConfig config = BOOT_CONFIG_NULL; |
| _cleanup_strv_free_ char **efi_entries = 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: %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; |
| |
| /* If XBOOTLDR and ESP actually refer to the same block device, suppress XBOOTLDR, since it would find the same entries twice */ |
| bool same = arg_esp_path && arg_xbootldr_path && devid_set_and_equal(esp_devid, xbootldr_devid); |
| |
| r = boot_config_load(&config, arg_esp_path, same ? NULL : arg_xbootldr_path); |
| if (r < 0) |
| return r; |
| |
| 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); |
| |
| r = boot_config_select_special_entries(&config); |
| if (r < 0) |
| return r; |
| |
| if (!FLAGS_SET(arg_json_format_flags, JSON_FORMAT_OFF)) { |
| |
| pager_open(arg_pager_flags); |
| |
| for (size_t i = 0; i < config.n_entries; i++) { |
| _cleanup_free_ char *opts = NULL; |
| BootEntry *e = config.entries + i; |
| _cleanup_(json_variant_unrefp) JsonVariant *v = NULL; |
| |
| if (!strv_isempty(e->options)) { |
| opts = strv_join(e->options, " "); |
| if (!opts) |
| return log_oom(); |
| } |
| |
| r = json_build(&v, JSON_BUILD_OBJECT( |
| JSON_BUILD_PAIR_CONDITION(e->id, "id", JSON_BUILD_STRING(e->id)), |
| JSON_BUILD_PAIR_CONDITION(e->path, "path", JSON_BUILD_STRING(e->path)), |
| JSON_BUILD_PAIR_CONDITION(e->root, "root", JSON_BUILD_STRING(e->root)), |
| JSON_BUILD_PAIR_CONDITION(e->title, "title", JSON_BUILD_STRING(e->title)), |
| JSON_BUILD_PAIR_CONDITION(boot_entry_title(e), "showTitle", JSON_BUILD_STRING(boot_entry_title(e))), |
| JSON_BUILD_PAIR_CONDITION(e->sort_key, "sortKey", JSON_BUILD_STRING(e->sort_key)), |
| JSON_BUILD_PAIR_CONDITION(e->version, "version", JSON_BUILD_STRING(e->version)), |
| JSON_BUILD_PAIR_CONDITION(e->machine_id, "machineId", JSON_BUILD_STRING(e->machine_id)), |
| JSON_BUILD_PAIR_CONDITION(e->architecture, "architecture", JSON_BUILD_STRING(e->architecture)), |
| JSON_BUILD_PAIR_CONDITION(opts, "options", JSON_BUILD_STRING(opts)), |
| JSON_BUILD_PAIR_CONDITION(e->kernel, "linux", JSON_BUILD_STRING(e->kernel)), |
| JSON_BUILD_PAIR_CONDITION(e->efi, "efi", JSON_BUILD_STRING(e->efi)), |
| JSON_BUILD_PAIR_CONDITION(!strv_isempty(e->initrd), "initrd", JSON_BUILD_STRV(e->initrd)), |
| JSON_BUILD_PAIR_CONDITION(e->device_tree, "devicetree", JSON_BUILD_STRING(e->device_tree)), |
| JSON_BUILD_PAIR_CONDITION(!strv_isempty(e->device_tree_overlay), "devicetreeOverlay", JSON_BUILD_STRV(e->device_tree_overlay)))); |
| if (r < 0) |
| return log_oom(); |
| |
| json_variant_dump(v, arg_json_format_flags, stdout, NULL); |
| } |
| |
| } else if (config.n_entries == 0) |
| log_info("No boot loader entries found."); |
| else { |
| pager_open(arg_pager_flags); |
| |
| printf("Boot Loader Entries:\n"); |
| |
| for (size_t n = 0; n < config.n_entries; n++) { |
| r = boot_entry_show( |
| config.entries + n, |
| /* show_as_default= */ n == (size_t) config.default_entry, |
| /* show_as_selected= */ n == (size_t) config.selected_entry, |
| /* show_discovered= */ true); |
| if (r < 0) |
| return r; |
| |
| if (n+1 < config.n_entries) |
| putchar('\n'); |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int install_random_seed(const char *esp) { |
| _cleanup_(unlink_and_freep) char *tmp = NULL; |
| _cleanup_free_ void *buffer = NULL; |
| _cleanup_free_ char *path = NULL; |
| _cleanup_close_ int fd = -1; |
| size_t sz, token_size; |
| ssize_t n; |
| int r; |
| |
| assert(esp); |
| |
| path = path_join(esp, "/loader/random-seed"); |
| if (!path) |
| return log_oom(); |
| |
| sz = random_pool_size(); |
| |
| buffer = malloc(sz); |
| if (!buffer) |
| return log_oom(); |
| |
| r = genuine_random_bytes(buffer, sz, RANDOM_BLOCK); |
| if (r < 0) |
| return log_error_errno(r, "Failed to acquire random seed: %m"); |
| |
| /* Normally create_subdirs() should already have created everything we need, but in case "bootctl |
| * random-seed" is called we want to just create the minimum we need for it, and not the full |
| * list. */ |
| r = mkdir_parents(path, 0755); |
| if (r < 0) |
| return log_error_errno(r, "Failed to create parent directory for %s: %m", path); |
| |
| r = tempfn_random(path, "bootctl", &tmp); |
| if (r < 0) |
| return log_oom(); |
| |
| fd = open(tmp, O_CREAT|O_EXCL|O_NOFOLLOW|O_NOCTTY|O_WRONLY|O_CLOEXEC, 0600); |
| if (fd < 0) { |
| tmp = mfree(tmp); |
| return log_error_errno(fd, "Failed to open random seed file for writing: %m"); |
| } |
| |
| n = write(fd, buffer, sz); |
| if (n < 0) |
| return log_error_errno(errno, "Failed to write random seed file: %m"); |
| if ((size_t) n != sz) |
| return log_error_errno(SYNTHETIC_ERRNO(EIO), "Short write while writing random seed file."); |
| |
| if (rename(tmp, path) < 0) |
| return log_error_errno(r, "Failed to move random seed file into place: %m"); |
| |
| tmp = mfree(tmp); |
| |
| log_info("Random seed file %s successfully written (%zu bytes).", path, sz); |
| |
| if (!arg_touch_variables) |
| return 0; |
| |
| if (!is_efi_boot()) { |
| log_notice("Not booted with EFI, skipping EFI variable setup."); |
| return 0; |
| } |
| |
| r = getenv_bool("SYSTEMD_WRITE_SYSTEM_TOKEN"); |
| if (r < 0) { |
| if (r != -ENXIO) |
| log_warning_errno(r, "Failed to parse $SYSTEMD_WRITE_SYSTEM_TOKEN, ignoring."); |
| |
| if (detect_vm() > 0) { |
| /* Let's not write a system token if we detect we are running in a VM |
| * environment. Why? Our default security model for the random seed uses the system |
| * token as a mechanism to ensure we are not vulnerable to golden master sloppiness |
| * issues, i.e. that people initialize the random seed file, then copy the image to |
| * many systems and end up with the same random seed in each that is assumed to be |
| * valid but in reality is the same for all machines. By storing a system token in |
| * the EFI variable space we can make sure that even though the random seeds on disk |
| * are all the same they will be different on each system under the assumption that |
| * the EFI variable space is maintained separate from the random seed storage. That |
| * is generally the case on physical systems, as the ESP is stored on persistent |
| * storage, and the EFI variables in NVRAM. However in virtualized environments this |
| * is generally not true: the EFI variable set is typically stored along with the |
| * disk image itself. For example, using the OVMF EFI firmware the EFI variables are |
| * stored in a file in the ESP itself. */ |
| |
| log_notice("Not installing system token, since we are running in a virtualized environment."); |
| return 0; |
| } |
| } else if (r == 0) { |
| log_notice("Not writing system token, because $SYSTEMD_WRITE_SYSTEM_TOKEN is set to false."); |
| return 0; |
| } |
| |
| r = efi_get_variable(EFI_LOADER_VARIABLE(LoaderSystemToken), NULL, NULL, &token_size); |
| if (r == -ENODATA) |
| log_debug_errno(r, "LoaderSystemToken EFI variable is invalid (too short?), replacing."); |
| else if (r < 0) { |
| if (r != -ENOENT) |
| return log_error_errno(r, "Failed to test system token validity: %m"); |
| } else { |
| if (token_size >= sz) { |
| /* Let's avoid writes if we can, and initialize this only once. */ |
| log_debug("System token already written, not updating."); |
| return 0; |
| } |
| |
| log_debug("Existing system token size (%zu) does not match our expectations (%zu), replacing.", token_size, sz); |
| } |
| |
| r = genuine_random_bytes(buffer, sz, RANDOM_BLOCK); |
| if (r < 0) |
| return log_error_errno(r, "Failed to acquire random seed: %m"); |
| |
| /* Let's write this variable with an umask in effect, so that unprivileged users can't see the token |
| * and possibly get identification information or too much insight into the kernel's entropy pool |
| * state. */ |
| RUN_WITH_UMASK(0077) { |
| r = efi_set_variable(EFI_LOADER_VARIABLE(LoaderSystemToken), buffer, sz); |
| if (r < 0) { |
| if (!arg_graceful) |
| return log_error_errno(r, "Failed to write 'LoaderSystemToken' EFI variable: %m"); |
| |
| if (r == -EINVAL) |
| log_warning_errno(r, "Unable to write 'LoaderSystemToken' EFI variable (firmware problem?), ignoring: %m"); |
| else |
| log_warning_errno(r, "Unable to write 'LoaderSystemToken' EFI variable, ignoring: %m"); |
| } else |
| log_info("Successfully initialized system token in EFI variable with %zu bytes.", sz); |
| } |
| |
| return 0; |
| } |
| |
| static int sync_everything(void) { |
| int ret = 0, k; |
| |
| if (arg_esp_path) { |
| k = syncfs_path(AT_FDCWD, arg_esp_path); |
| if (k < 0) |
| ret = log_error_errno(k, "Failed to synchronize the ESP '%s': %m", arg_esp_path); |
| } |
| |
| if (arg_xbootldr_path) { |
| k = syncfs_path(AT_FDCWD, arg_xbootldr_path); |
| if (k < 0) |
| ret = log_error_errno(k, "Failed to synchronize $BOOT '%s': %m", arg_xbootldr_path); |
| } |
| |
| return ret; |
| } |
| |
| static int verb_install(int argc, char *argv[], void *userdata) { |
| sd_id128_t uuid = SD_ID128_NULL; |
| uint64_t pstart = 0, psize = 0; |
| uint32_t part = 0; |
| bool install, graceful; |
| int r; |
| |
| /* Invoked for both "update" and "install" */ |
| |
| install = streq(argv[0], "install"); |
| graceful = !install && arg_graceful; /* support graceful mode for updates */ |
| |
| r = acquire_esp(/* unprivileged_mode= */ false, graceful, &part, &pstart, &psize, &uuid, NULL); |
| if (graceful && r == -ENOKEY) |
| return 0; /* If --graceful is specified and we can't find an ESP, handle this cleanly */ |
| if (r < 0) |
| return r; |
| |
| if (!install) { |
| /* If we are updating, don't do anything if sd-boot wasn't actually installed. */ |
| r = are_we_installed(); |
| if (r < 0) |
| return r; |
| if (r == 0) { |
| log_debug("Skipping update because sd-boot is not installed in the ESP."); |
| return 0; |
| } |
| } |
| |
| r = acquire_xbootldr(/* unprivileged_mode= */ false, NULL, NULL); |
| if (r < 0) |
| return r; |
| |
| r = settle_make_entry_directory(); |
| if (r < 0) |
| return r; |
| |
| RUN_WITH_UMASK(0002) { |
| if (install) { |
| /* Don't create any of these directories when we are just updating. When we update |
| * we'll drop-in our files (unless there are newer ones already), but we won't create |
| * the directories for them in the first place. */ |
| r = create_subdirs(arg_esp_path, esp_subdirs); |
| if (r < 0) |
| return r; |
| |
| r = create_subdirs(arg_dollar_boot_path(), dollar_boot_subdirs); |
| if (r < 0) |
| return r; |
| } |
| |
| r = install_binaries(arg_esp_path, install); |
| if (r < 0) |
| return r; |
| |
| if (install) { |
| r = install_loader_config(arg_esp_path); |
| if (r < 0) |
| return r; |
| |
| r = install_entry_directory(arg_dollar_boot_path()); |
| if (r < 0) |
| return r; |
| |
| r = install_entry_token(); |
| if (r < 0) |
| return r; |
| |
| r = install_random_seed(arg_esp_path); |
| if (r < 0) |
| return r; |
| } |
| |
| r = install_loader_specification(arg_dollar_boot_path()); |
| if (r < 0) |
| return r; |
| } |
| |
| (void) sync_everything(); |
| |
| if (arg_touch_variables) |
| r = install_variables(arg_esp_path, |
| part, pstart, psize, uuid, |
| "/EFI/systemd/systemd-boot" EFI_MACHINE_TYPE_NAME ".efi", |
| install); |
| |
| return r; |
| } |
| |
| static int verb_remove(int argc, char *argv[], void *userdata) { |
| sd_id128_t uuid = SD_ID128_NULL; |
| int r, q; |
| |
| r = acquire_esp(/* unprivileged_mode= */ false, /* graceful= */ false, NULL, NULL, NULL, &uuid, NULL); |
| if (r < 0) |
| return r; |
| |
| r = acquire_xbootldr(/* unprivileged_mode= */ false, NULL, NULL); |
| if (r < 0) |
| return r; |
| |
| r = settle_make_entry_directory(); |
| if (r < 0) |
| return r; |
| |
| r = remove_binaries(arg_esp_path); |
| |
| q = remove_file(arg_esp_path, "/loader/loader.conf"); |
| if (q < 0 && r >= 0) |
| r = q; |
| |
| q = remove_file(arg_esp_path, "/loader/random-seed"); |
| if (q < 0 && r >= 0) |
| r = q; |
| |
| q = remove_file(arg_esp_path, "/loader/entries.srel"); |
| if (q < 0 && r >= 0) |
| r = q; |
| |
| q = remove_subdirs(arg_esp_path, esp_subdirs); |
| if (q < 0 && r >= 0) |
| r = q; |
| |
| q = remove_subdirs(arg_esp_path, dollar_boot_subdirs); |
| if (q < 0 && r >= 0) |
| r = q; |
| |
| q = remove_entry_directory(arg_esp_path); |
| if (q < 0 && r >= 0) |
| r = q; |
| |
| if (arg_xbootldr_path) { |
| /* Remove a subset of these also from the XBOOTLDR partition if it exists */ |
| |
| q = remove_file(arg_xbootldr_path, "/loader/entries.srel"); |
| if (q < 0 && r >= 0) |
| r = q; |
| |
| q = remove_subdirs(arg_xbootldr_path, dollar_boot_subdirs); |
| if (q < 0 && r >= 0) |
| r = q; |
| |
| q = remove_entry_directory(arg_xbootldr_path); |
| if (q < 0 && r >= 0) |
| r = q; |
| } |
| |
| (void) sync_everything(); |
| |
| if (!arg_touch_variables) |
| return r; |
| |
| q = remove_variables(uuid, "/EFI/systemd/systemd-boot" EFI_MACHINE_TYPE_NAME ".efi", true); |
| if (q < 0 && r >= 0) |
| r = q; |
| |
| q = remove_loader_variables(); |
| if (q < 0 && r >= 0) |
| r = q; |
| |
| return r; |
| } |
| |
| static int verb_is_installed(int argc, char *argv[], void *userdata) { |
| int r; |
| |
| r = are_we_installed(); |
| if (r < 0) |
| return r; |
| |
| if (r > 0) { |
| puts("yes"); |
| return EXIT_SUCCESS; |
| } else { |
| puts("no"); |
| return EXIT_FAILURE; |
| } |
| } |
| |
| static int parse_timeout(const char *arg1, char16_t **ret_timeout, size_t *ret_timeout_size) { |
| char utf8[DECIMAL_STR_MAX(usec_t)]; |
| char16_t *encoded; |
| usec_t timeout; |
| int r; |
| |
| assert(arg1); |
| assert(ret_timeout); |
| assert(ret_timeout_size); |
| |
| if (streq(arg1, "menu-force")) |
| timeout = USEC_INFINITY; |
| else if (streq(arg1, "menu-hidden")) |
| timeout = 0; |
| else { |
| r = parse_time(arg1, &timeout, USEC_PER_SEC); |
| if (r < 0) |
| return log_error_errno(r, "Failed to parse timeout '%s': %m", arg1); |
| if (timeout != USEC_INFINITY && timeout > UINT32_MAX * USEC_PER_SEC) |
| log_warning("Timeout is too long and will be treated as 'menu-force' instead."); |
| } |
| |
| xsprintf(utf8, USEC_FMT, MIN(timeout / USEC_PER_SEC, UINT32_MAX)); |
| |
| encoded = utf8_to_utf16(utf8, strlen(utf8)); |
| if (!encoded) |
| return log_oom(); |
| |
| *ret_timeout = encoded; |
| *ret_timeout_size = char16_strlen(encoded) * 2 + 2; |
| return 0; |
| } |
| |
| static int parse_loader_entry_target_arg(const char *arg1, char16_t **ret_target, size_t *ret_target_size) { |
| char16_t *encoded = NULL; |
| int r; |
| |
| assert(arg1); |
| assert(ret_target); |
| assert(ret_target_size); |
| |
| if (streq(arg1, "@current")) { |
| r = efi_get_variable(EFI_LOADER_VARIABLE(LoaderEntrySelected), NULL, (void *) ret_target, ret_target_size); |
| if (r < 0) |
| return log_error_errno(r, "Failed to get EFI variable 'LoaderEntrySelected': %m"); |
| |
| } else if (streq(arg1, "@oneshot")) { |
| r = efi_get_variable(EFI_LOADER_VARIABLE(LoaderEntryOneShot), NULL, (void *) ret_target, ret_target_size); |
| if (r < 0) |
| return log_error_errno(r, "Failed to get EFI variable 'LoaderEntryOneShot': %m"); |
| |
| } else if (streq(arg1, "@default")) { |
| r = efi_get_variable(EFI_LOADER_VARIABLE(LoaderEntryDefault), NULL, (void *) ret_target, ret_target_size); |
| if (r < 0) |
| return log_error_errno(r, "Failed to get EFI variable 'LoaderEntryDefault': %m"); |
| |
| } else if (arg1[0] == '@' && !streq(arg1, "@saved")) |
| return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Unsupported special entry identifier: %s", arg1); |
| else { |
| encoded = utf8_to_utf16(arg1, strlen(arg1)); |
| if (!encoded) |
| return log_oom(); |
| |
| *ret_target = encoded; |
| *ret_target_size = char16_strlen(encoded) * 2 + 2; |
| } |
| |
| return 0; |
| } |
| |
| static int verb_set_efivar(int argc, char *argv[], void *userdata) { |
| int r; |
| |
| if (!is_efi_boot()) |
| return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), |
| "Not booted with UEFI."); |
| |
| if (access(EFIVAR_PATH(EFI_LOADER_VARIABLE(LoaderInfo)), F_OK) < 0) { |
| if (errno == ENOENT) { |
| log_error_errno(errno, "Not booted with a supported boot loader."); |
| return -EOPNOTSUPP; |
| } |
| |
| return log_error_errno(errno, "Failed to detect whether boot loader supports '%s' operation: %m", argv[0]); |
| } |
| |
| if (detect_container() > 0) |
| return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), |
| "'%s' operation not supported in a container.", |
| argv[0]); |
| |
| if (!arg_touch_variables) |
| return log_error_errno(SYNTHETIC_ERRNO(EINVAL), |
| "'%s' operation cannot be combined with --no-variables.", |
| argv[0]); |
| |
| const char *variable; |
| int (* arg_parser)(const char *, char16_t **, size_t *); |
| |
| if (streq(argv[0], "set-default")) { |
| variable = EFI_LOADER_VARIABLE(LoaderEntryDefault); |
| arg_parser = parse_loader_entry_target_arg; |
| } else if (streq(argv[0], "set-oneshot")) { |
| variable = EFI_LOADER_VARIABLE(LoaderEntryOneShot); |
| arg_parser = parse_loader_entry_target_arg; |
| } else if (streq(argv[0], "set-timeout")) { |
| variable = EFI_LOADER_VARIABLE(LoaderConfigTimeout); |
| arg_parser = parse_timeout; |
| } else if (streq(argv[0], "set-timeout-oneshot")) { |
| variable = EFI_LOADER_VARIABLE(LoaderConfigTimeoutOneShot); |
| arg_parser = parse_timeout; |
| } else |
| assert_not_reached(); |
| |
| if (isempty(argv[1])) { |
| r = efi_set_variable(variable, NULL, 0); |
| if (r < 0 && r != -ENOENT) |
| return log_error_errno(r, "Failed to remove EFI variable '%s': %m", variable); |
| } else { |
| _cleanup_free_ char16_t *value = NULL; |
| size_t value_size = 0; |
| |
| r = arg_parser(argv[1], &value, &value_size); |
| if (r < 0) |
| return r; |
| r = efi_set_variable(variable, value, value_size); |
| if (r < 0) |
| return log_error_errno(r, "Failed to update EFI variable '%s': %m", variable); |
| } |
| |
| return 0; |
| } |
| |
| static int verb_random_seed(int argc, char *argv[], void *userdata) { |
| int r; |
| |
| r = find_esp_and_warn(arg_esp_path, false, &arg_esp_path, NULL, NULL, NULL, NULL, NULL); |
| if (r == -ENOKEY) { |
| /* find_esp_and_warn() doesn't warn about ENOKEY, so let's do that on our own */ |
| if (!arg_graceful) |
| return log_error_errno(r, "Unable to find ESP."); |
| |
| log_notice("No ESP found, not initializing random seed."); |
| return 0; |
| } |
| if (r < 0) |
| return r; |
| |
| r = install_random_seed(arg_esp_path); |
| if (r < 0) |
| return r; |
| |
| (void) sync_everything(); |
| return 0; |
| } |
| |
| static int verb_systemd_efi_options(int argc, char *argv[], void *userdata) { |
| int r; |
| |
| if (argc == 1) { |
| _cleanup_free_ char *line = NULL, *new = NULL; |
| |
| r = systemd_efi_options_variable(&line); |
| if (r == -ENODATA) |
| log_debug("No SystemdOptions EFI variable present in cache."); |
| else if (r < 0) |
| return log_error_errno(r, "Failed to read SystemdOptions EFI variable from cache: %m"); |
| else |
| puts(line); |
| |
| r = systemd_efi_options_efivarfs_if_newer(&new); |
| if (r == -ENODATA) { |
| if (line) |
| log_notice("Note: SystemdOptions EFI variable has been removed since boot."); |
| } else if (r < 0) |
| log_warning_errno(r, "Failed to check SystemdOptions EFI variable in efivarfs, ignoring: %m"); |
| else if (new && !streq_ptr(line, new)) |
| log_notice("Note: SystemdOptions EFI variable has been modified since boot. New value: %s", |
| new); |
| } else { |
| r = efi_set_variable_string(EFI_SYSTEMD_VARIABLE(SystemdOptions), argv[1]); |
| if (r < 0) |
| return log_error_errno(r, "Failed to set SystemdOptions EFI variable: %m"); |
| } |
| |
| return 0; |
| } |
| |
| static int verb_reboot_to_firmware(int argc, char *argv[], void *userdata) { |
| int r; |
| |
| if (argc < 2) { |
| r = efi_get_reboot_to_firmware(); |
| if (r > 0) { |
| puts("active"); |
| return EXIT_SUCCESS; /* success */ |
| } |
| if (r == 0) { |
| puts("supported"); |
| return 1; /* recognizable error #1 */ |
| } |
| if (r == -EOPNOTSUPP) { |
| puts("not supported"); |
| return 2; /* recognizable error #2 */ |
| } |
| |
| log_error_errno(r, "Failed to query reboot-to-firmware state: %m"); |
| return 3; /* other kind of error */ |
| } else { |
| r = parse_boolean(argv[1]); |
| if (r < 0) |
| return log_error_errno(r, "Failed to parse argument: %s", argv[1]); |
| |
| r = efi_set_reboot_to_firmware(r); |
| if (r < 0) |
| return log_error_errno(r, "Failed to set reboot-to-firmware option: %m"); |
| |
| return 0; |
| } |
| } |
| |
| static int bootctl_main(int argc, char *argv[]) { |
| static const Verb verbs[] = { |
| { "help", VERB_ANY, VERB_ANY, 0, help }, |
| { "status", VERB_ANY, 1, VERB_DEFAULT, verb_status }, |
| { "install", VERB_ANY, 1, 0, verb_install }, |
| { "update", VERB_ANY, 1, 0, verb_install }, |
| { "remove", VERB_ANY, 1, 0, verb_remove }, |
| { "is-installed", VERB_ANY, 1, 0, verb_is_installed }, |
| { "list", VERB_ANY, 1, 0, verb_list }, |
| { "set-default", 2, 2, 0, verb_set_efivar }, |
| { "set-oneshot", 2, 2, 0, verb_set_efivar }, |
| { "set-timeout", 2, 2, 0, verb_set_efivar }, |
| { "set-timeout-oneshot", 2, 2, 0, verb_set_efivar }, |
| { "random-seed", VERB_ANY, 1, 0, verb_random_seed }, |
| { "systemd-efi-options", VERB_ANY, 2, 0, verb_systemd_efi_options }, |
| { "reboot-to-firmware", VERB_ANY, 2, 0, verb_reboot_to_firmware }, |
| {} |
| }; |
| |
| return dispatch_verb(argc, argv, verbs, NULL); |
| } |
| |
| static int run(int argc, char *argv[]) { |
| int r; |
| |
| log_parse_environment(); |
| log_open(); |
| |
| /* If we run in a container, automatically turn off EFI file system access */ |
| if (detect_container() > 0) |
| arg_touch_variables = false; |
| |
| r = parse_argv(argc, argv); |
| if (r <= 0) |
| return r; |
| |
| return bootctl_main(argc, argv); |
| } |
| |
| DEFINE_MAIN_FUNCTION_WITH_POSITIVE_FAILURE(run); |