1248 lines
39 KiB
C
1248 lines
39 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#include <blkid.h>
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#include <ctype.h>
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#include <dirent.h>
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#include <errno.h>
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#include <ftw.h>
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#include <getopt.h>
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#include <limits.h>
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#include <linux/magic.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/mman.h>
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#include <sys/stat.h>
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#include <sys/statfs.h>
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#include <unistd.h>
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#include "sd-id128.h"
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#include "alloc-util.h"
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#include "blkid-util.h"
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#include "bootspec.h"
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#include "copy.h"
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#include "dirent-util.h"
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#include "efivars.h"
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#include "fd-util.h"
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#include "fileio.h"
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#include "fs-util.h"
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#include "locale-util.h"
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#include "pager.h"
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#include "parse-util.h"
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#include "rm-rf.h"
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#include "stat-util.h"
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#include "string-util.h"
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#include "strv.h"
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#include "terminal-util.h"
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#include "umask-util.h"
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#include "utf8.h"
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#include "util.h"
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#include "verbs.h"
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#include "virt.h"
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static char *arg_path = NULL;
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static bool arg_print_path = false;
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static bool arg_touch_variables = true;
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static bool arg_no_pager = false;
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static int acquire_esp(
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bool unprivileged_mode,
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uint32_t *ret_part,
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uint64_t *ret_pstart,
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uint64_t *ret_psize,
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sd_id128_t *ret_uuid) {
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char *np;
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int r;
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/* Find the ESP, and log about errors. Note that find_esp_and_warn() will log in all error cases on its own,
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* except for ENOKEY (which is good, we want to show our own message in that case, suggesting use of --path=)
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* and EACCESS (only when we request unprivileged mode; in this case we simply eat up the error here, so that
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* --list and --status work too, without noise about this). */
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r = find_esp_and_warn(arg_path, unprivileged_mode, &np, ret_part, ret_pstart, ret_psize, ret_uuid);
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if (r == -ENOKEY)
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return log_error_errno(r,
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"Couldn't find EFI system partition. It is recommended to mount it to /boot or /efi.\n"
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"Alternatively, use --path= to specify path to mount point.");
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if (r < 0)
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return r;
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free_and_replace(arg_path, np);
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log_debug("Using EFI System Partition at %s.", arg_path);
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return 0;
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}
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/* search for "#### LoaderInfo: systemd-boot 218 ####" string inside the binary */
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static int get_file_version(int fd, char **v) {
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struct stat st;
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char *buf;
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const char *s, *e;
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char *x = NULL;
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int r = 0;
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assert(fd >= 0);
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assert(v);
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if (fstat(fd, &st) < 0)
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return log_error_errno(errno, "Failed to stat EFI binary: %m");
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if (st.st_size < 27) {
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*v = NULL;
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return 0;
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}
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buf = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
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if (buf == MAP_FAILED)
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return log_error_errno(errno, "Failed to memory map EFI binary: %m");
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s = memmem(buf, st.st_size - 8, "#### LoaderInfo: ", 17);
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if (!s)
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goto finish;
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s += 17;
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e = memmem(s, st.st_size - (s - buf), " ####", 5);
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if (!e || e - s < 3) {
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log_error("Malformed version string.");
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r = -EINVAL;
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goto finish;
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}
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x = strndup(s, e - s);
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if (!x) {
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r = log_oom();
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goto finish;
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}
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r = 1;
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finish:
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(void) munmap(buf, st.st_size);
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*v = x;
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return r;
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}
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static int enumerate_binaries(const char *esp_path, const char *path, const char *prefix) {
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char *p;
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_cleanup_closedir_ DIR *d = NULL;
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struct dirent *de;
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int r = 0, c = 0;
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p = strjoina(esp_path, "/", path);
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d = opendir(p);
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if (!d) {
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if (errno == ENOENT)
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return 0;
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return log_error_errno(errno, "Failed to read \"%s\": %m", p);
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}
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FOREACH_DIRENT(de, d, break) {
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_cleanup_close_ int fd = -1;
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_cleanup_free_ char *v = NULL;
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if (!endswith_no_case(de->d_name, ".efi"))
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continue;
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if (prefix && !startswith_no_case(de->d_name, prefix))
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continue;
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fd = openat(dirfd(d), de->d_name, O_RDONLY|O_CLOEXEC);
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if (fd < 0)
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return log_error_errno(errno, "Failed to open \"%s/%s\" for reading: %m", p, de->d_name);
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r = get_file_version(fd, &v);
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if (r < 0)
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return r;
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if (r > 0)
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printf(" File: %s/%s/%s (%s%s%s)\n", special_glyph(TREE_RIGHT), path, de->d_name, ansi_highlight(), v, ansi_normal());
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else
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printf(" File: %s/%s/%s\n", special_glyph(TREE_RIGHT), path, de->d_name);
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c++;
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}
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return c;
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}
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static int status_binaries(const char *esp_path, sd_id128_t partition) {
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int r;
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printf("Available Boot Loaders on ESP:\n");
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if (!esp_path) {
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printf(" ESP: Cannot find or access mount point of ESP.\n\n");
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return -ENOENT;
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}
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printf(" ESP: %s", esp_path);
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if (!sd_id128_is_null(partition))
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printf(" (/dev/disk/by-partuuid/%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x)", SD_ID128_FORMAT_VAL(partition));
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printf("\n");
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r = enumerate_binaries(esp_path, "EFI/systemd", NULL);
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if (r == 0)
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log_info("systemd-boot not installed in ESP.");
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else if (r < 0)
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return r;
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r = enumerate_binaries(esp_path, "EFI/BOOT", "boot");
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if (r == 0)
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log_info("No default/fallback boot loader installed in ESP.");
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else if (r < 0)
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return r;
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printf("\n");
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return 0;
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}
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static int print_efi_option(uint16_t id, bool in_order) {
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_cleanup_free_ char *title = NULL;
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_cleanup_free_ char *path = NULL;
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sd_id128_t partition;
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bool active;
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int r = 0;
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r = efi_get_boot_option(id, &title, &partition, &path, &active);
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if (r < 0)
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return r;
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/* print only configured entries with partition information */
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if (!path || sd_id128_is_null(partition))
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return 0;
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efi_tilt_backslashes(path);
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printf(" Title: %s%s%s\n", ansi_highlight(), strna(title), ansi_normal());
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printf(" ID: 0x%04X\n", id);
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printf(" Status: %sactive%s\n", active ? "" : "in", in_order ? ", boot-order" : "");
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printf(" Partition: /dev/disk/by-partuuid/%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\n", SD_ID128_FORMAT_VAL(partition));
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printf(" File: %s%s\n", special_glyph(TREE_RIGHT), path);
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printf("\n");
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return 0;
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}
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static int status_variables(void) {
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_cleanup_free_ uint16_t *options = NULL, *order = NULL;
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int n_options, n_order, i;
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n_options = efi_get_boot_options(&options);
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if (n_options == -ENOENT)
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return log_error_errno(n_options,
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"Failed to access EFI variables, efivarfs"
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" needs to be available at /sys/firmware/efi/efivars/.");
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if (n_options < 0)
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return log_error_errno(n_options, "Failed to read EFI boot entries: %m");
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n_order = efi_get_boot_order(&order);
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if (n_order == -ENOENT)
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n_order = 0;
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else if (n_order < 0)
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return log_error_errno(n_order, "Failed to read EFI boot order.");
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/* print entries in BootOrder first */
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printf("Boot Loaders Listed in EFI Variables:\n");
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for (i = 0; i < n_order; i++)
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print_efi_option(order[i], true);
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/* print remaining entries */
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for (i = 0; i < n_options; i++) {
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int j;
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for (j = 0; j < n_order; j++)
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if (options[i] == order[j])
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goto next_option;
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print_efi_option(options[i], false);
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next_option:
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continue;
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}
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return 0;
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}
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static int boot_entry_show(const BootEntry *e, bool show_as_default) {
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assert(e);
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printf(" title: %s%s%s%s%s%s\n",
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ansi_highlight(),
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boot_entry_title(e),
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ansi_normal(),
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ansi_highlight_green(),
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show_as_default ? " (default)" : "",
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ansi_normal());
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if (e->id)
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printf(" id: %s\n", e->id);
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if (e->version)
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printf(" version: %s\n", e->version);
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if (e->machine_id)
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printf(" machine-id: %s\n", e->machine_id);
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if (e->architecture)
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printf(" architecture: %s\n", e->architecture);
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if (e->kernel)
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printf(" linux: %s\n", e->kernel);
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if (!strv_isempty(e->initrd)) {
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_cleanup_free_ char *t;
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t = strv_join(e->initrd, " ");
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if (!t)
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return log_oom();
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printf(" initrd: %s\n", t);
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}
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if (!strv_isempty(e->options)) {
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_cleanup_free_ char *t;
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t = strv_join(e->options, " ");
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if (!t)
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return log_oom();
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printf(" options: %s\n", t);
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}
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if (e->device_tree)
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printf(" devicetree: %s\n", e->device_tree);
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return 0;
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}
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static int status_entries(const char *esp_path, sd_id128_t partition) {
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_cleanup_(boot_config_free) BootConfig config = {};
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int r;
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r = boot_entries_load_config(esp_path, &config);
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if (r < 0)
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return r;
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if (config.default_entry < 0)
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printf("%zu entries, no entry could be determined as default.\n", config.n_entries);
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else {
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printf("Default Boot Loader Entry:\n");
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boot_entry_show(config.entries + config.default_entry, false);
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}
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return 0;
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}
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static int compare_product(const char *a, const char *b) {
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size_t x, y;
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assert(a);
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assert(b);
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x = strcspn(a, " ");
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y = strcspn(b, " ");
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if (x != y)
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return x < y ? -1 : x > y ? 1 : 0;
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return strncmp(a, b, x);
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}
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static int compare_version(const char *a, const char *b) {
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assert(a);
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assert(b);
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a += strcspn(a, " ");
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a += strspn(a, " ");
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b += strcspn(b, " ");
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b += strspn(b, " ");
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return strverscmp(a, b);
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}
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static int version_check(int fd_from, const char *from, int fd_to, const char *to) {
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_cleanup_free_ char *a = NULL, *b = NULL;
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int r;
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assert(fd_from >= 0);
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assert(from);
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assert(fd_to >= 0);
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assert(to);
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r = get_file_version(fd_from, &a);
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if (r < 0)
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return r;
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if (r == 0) {
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log_error("Source file \"%s\" does not carry version information!", from);
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return -EINVAL;
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}
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r = get_file_version(fd_to, &b);
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if (r < 0)
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return r;
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if (r == 0 || compare_product(a, b) != 0) {
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log_notice("Skipping \"%s\", since it's owned by another boot loader.", to);
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return -EEXIST;
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}
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if (compare_version(a, b) < 0) {
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log_warning("Skipping \"%s\", since a newer boot loader version exists already.", to);
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return -ESTALE;
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}
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return 0;
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}
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static int copy_file_with_version_check(const char *from, const char *to, bool force) {
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_cleanup_close_ int fd_from = -1, fd_to = -1;
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_cleanup_free_ char *t = NULL;
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int r;
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fd_from = open(from, O_RDONLY|O_CLOEXEC|O_NOCTTY);
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if (fd_from < 0)
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return log_error_errno(errno, "Failed to open \"%s\" for reading: %m", from);
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if (!force) {
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fd_to = open(to, O_RDONLY|O_CLOEXEC|O_NOCTTY);
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if (fd_to < 0) {
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if (errno != -ENOENT)
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return log_error_errno(errno, "Failed to open \"%s\" for reading: %m", to);
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} else {
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r = version_check(fd_from, from, fd_to, to);
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if (r < 0)
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return r;
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if (lseek(fd_from, 0, SEEK_SET) == (off_t) -1)
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return log_error_errno(errno, "Failed to seek in \"%s\": %m", from);
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fd_to = safe_close(fd_to);
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}
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}
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r = tempfn_random(to, NULL, &t);
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if (r < 0)
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return log_oom();
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RUN_WITH_UMASK(0000) {
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fd_to = open(t, O_WRONLY|O_CREAT|O_CLOEXEC|O_EXCL|O_NOFOLLOW, 0644);
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if (fd_to < 0)
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return log_error_errno(errno, "Failed to open \"%s\" for writing: %m", t);
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}
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r = copy_bytes(fd_from, fd_to, (uint64_t) -1, COPY_REFLINK);
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if (r < 0) {
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(void) unlink(t);
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return log_error_errno(r, "Failed to copy data from \"%s\" to \"%s\": %m", from, t);
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}
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(void) copy_times(fd_from, fd_to);
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if (fsync(fd_to) < 0) {
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(void) unlink_noerrno(t);
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return log_error_errno(errno, "Failed to copy data from \"%s\" to \"%s\": %m", from, t);
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}
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(void) fsync_directory_of_file(fd_to);
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if (renameat(AT_FDCWD, t, AT_FDCWD, to) < 0) {
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(void) unlink_noerrno(t);
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return log_error_errno(errno, "Failed to rename \"%s\" to \"%s\": %m", t, to);
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}
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log_info("Copied \"%s\" to \"%s\".", from, to);
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return 0;
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}
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static int mkdir_one(const char *prefix, const char *suffix) {
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char *p;
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p = strjoina(prefix, "/", suffix);
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if (mkdir(p, 0700) < 0) {
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if (errno != EEXIST)
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return log_error_errno(errno, "Failed to create \"%s\": %m", p);
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} else
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log_info("Created \"%s\".", p);
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return 0;
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}
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|
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static const char *efi_subdirs[] = {
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"EFI",
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"EFI/systemd",
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"EFI/BOOT",
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"loader",
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"loader/entries",
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NULL
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};
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|
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static int create_dirs(const char *esp_path) {
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const char **i;
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int r;
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STRV_FOREACH(i, efi_subdirs) {
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r = mkdir_one(esp_path, *i);
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if (r < 0)
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return r;
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}
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return 0;
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}
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|
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static int copy_one_file(const char *esp_path, const char *name, bool force) {
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char *p, *q;
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int r;
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p = strjoina(BOOTLIBDIR "/", name);
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q = strjoina(esp_path, "/EFI/systemd/", name);
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r = copy_file_with_version_check(p, q, force);
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|
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if (startswith(name, "systemd-boot")) {
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int k;
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char *v;
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|
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/* Create the EFI default boot loader name (specified for removable devices) */
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v = strjoina(esp_path, "/EFI/BOOT/BOOT",
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name + STRLEN("systemd-boot"));
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ascii_strupper(strrchr(v, '/') + 1);
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|
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k = copy_file_with_version_check(p, v, force);
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if (k < 0 && r == 0)
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r = k;
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}
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|
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return r;
|
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}
|
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|
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static int install_binaries(const char *esp_path, bool force) {
|
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struct dirent *de;
|
|
_cleanup_closedir_ DIR *d = NULL;
|
|
int r = 0;
|
|
|
|
if (force) {
|
|
/* 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_dirs(esp_path);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
d = opendir(BOOTLIBDIR);
|
|
if (!d)
|
|
return log_error_errno(errno, "Failed to open \""BOOTLIBDIR"\": %m");
|
|
|
|
FOREACH_DIRENT(de, d, break) {
|
|
int k;
|
|
|
|
if (!endswith_no_case(de->d_name, ".efi"))
|
|
continue;
|
|
|
|
k = copy_one_file(esp_path, de->d_name, force);
|
|
if (k < 0 && r == 0)
|
|
r = k;
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
static bool same_entry(uint16_t id, const 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;
|
|
if (!streq_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 1;
|
|
}
|
|
|
|
/* 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, i;
|
|
|
|
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 (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 = realloc(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, i;
|
|
|
|
n = efi_get_boot_order(&order);
|
|
if (n <= 0)
|
|
return n;
|
|
|
|
for (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) {
|
|
char *p;
|
|
uint16_t slot;
|
|
int r;
|
|
|
|
if (!is_efi_boot()) {
|
|
log_warning("Not booted with EFI, skipping EFI variable setup.");
|
|
return 0;
|
|
}
|
|
|
|
p = strjoina(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) {
|
|
char *p;
|
|
_cleanup_closedir_ DIR *d = NULL;
|
|
struct dirent *de;
|
|
int r, c = 0;
|
|
|
|
p = strjoina(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) {
|
|
char *p;
|
|
|
|
p = strjoina(prefix, "/", suffix);
|
|
if (rmdir(p) < 0) {
|
|
if (!IN_SET(errno, ENOENT, ENOTEMPTY))
|
|
return log_error_errno(errno, "Failed to remove \"%s\": %m", p);
|
|
} else
|
|
log_info("Removed \"%s\".", p);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int remove_binaries(const char *esp_path) {
|
|
char *p;
|
|
int r, q;
|
|
unsigned i;
|
|
|
|
p = strjoina(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;
|
|
|
|
for (i = ELEMENTSOF(efi_subdirs)-1; i > 0; i--) {
|
|
q = rmdir_one(esp_path, efi_subdirs[i-1]);
|
|
if (q < 0 && r == 0)
|
|
r = q;
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
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 install_loader_config(const char *esp_path) {
|
|
|
|
char machine_string[SD_ID128_STRING_MAX];
|
|
_cleanup_(unlink_and_freep) char *t = NULL;
|
|
_cleanup_fclose_ FILE *f = NULL;
|
|
sd_id128_t machine_id;
|
|
const char *p;
|
|
int r, fd;
|
|
|
|
r = sd_id128_get_machine(&machine_id);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to get machine id: %m");
|
|
|
|
p = strjoina(esp_path, "/loader/loader.conf");
|
|
|
|
if (access(p, F_OK) >= 0) /* Silently skip creation if the file already exists (early check) */
|
|
return 0;
|
|
|
|
fd = open_tmpfile_linkable(p, O_WRONLY|O_CLOEXEC, &t);
|
|
if (fd < 0)
|
|
return log_error_errno(fd, "Failed to open \"%s\" for writing: %m", p);
|
|
|
|
f = fdopen(fd, "we");
|
|
if (!f) {
|
|
safe_close(fd);
|
|
return log_oom();
|
|
}
|
|
|
|
fprintf(f, "#timeout 3\n"
|
|
"#console-mode keep\n"
|
|
"default %s-*\n", sd_id128_to_string(machine_id, machine_string));
|
|
|
|
r = fflush_sync_and_check(f);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to write \"%s\": %m", p);
|
|
|
|
r = link_tmpfile(fd, 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 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("%s [COMMAND] [OPTIONS...]\n\n"
|
|
"Install, update or remove the systemd-boot EFI boot manager.\n\n"
|
|
" -h --help Show this help\n"
|
|
" --version Print version\n"
|
|
" --path=PATH Path to the EFI System Partition (ESP)\n"
|
|
" -p --print-path Print path to the EFI partition\n"
|
|
" --no-variables Don't touch EFI variables\n"
|
|
" --no-pager Do not pipe output into a pager\n"
|
|
"\nBoot Loader Commands:\n"
|
|
" status Show status of installed systemd-boot and EFI variables\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"
|
|
"\nBoot Loader Entries Commands:\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"
|
|
"\nSee the %s for details.\n"
|
|
, program_invocation_short_name
|
|
, link);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int parse_argv(int argc, char *argv[]) {
|
|
enum {
|
|
ARG_PATH = 0x100,
|
|
ARG_VERSION,
|
|
ARG_NO_VARIABLES,
|
|
ARG_NO_PAGER,
|
|
};
|
|
|
|
static const struct option options[] = {
|
|
{ "help", no_argument, NULL, 'h' },
|
|
{ "version", no_argument, NULL, ARG_VERSION },
|
|
{ "path", required_argument, NULL, ARG_PATH },
|
|
{ "print-path", no_argument, NULL, 'p' },
|
|
{ "no-variables", no_argument, NULL, ARG_NO_VARIABLES },
|
|
{ "no-pager", no_argument, NULL, ARG_NO_PAGER },
|
|
{}
|
|
};
|
|
|
|
int c, r;
|
|
|
|
assert(argc >= 0);
|
|
assert(argv);
|
|
|
|
while ((c = getopt_long(argc, argv, "hp", options, NULL)) >= 0)
|
|
switch (c) {
|
|
|
|
case 'h':
|
|
help(0, NULL, NULL);
|
|
return 0;
|
|
|
|
case ARG_VERSION:
|
|
return version();
|
|
|
|
case ARG_PATH:
|
|
r = free_and_strdup(&arg_path, optarg);
|
|
if (r < 0)
|
|
return log_oom();
|
|
break;
|
|
|
|
case 'p':
|
|
arg_print_path = true;
|
|
break;
|
|
|
|
case ARG_NO_VARIABLES:
|
|
arg_touch_variables = false;
|
|
break;
|
|
|
|
case ARG_NO_PAGER:
|
|
arg_no_pager = true;
|
|
break;
|
|
|
|
case '?':
|
|
return -EINVAL;
|
|
|
|
default:
|
|
assert_not_reached("Unknown option");
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void read_loader_efi_var(const char *name, char **var) {
|
|
int r;
|
|
|
|
r = efi_get_variable_string(EFI_VENDOR_LOADER, name, var);
|
|
if (r < 0 && r != -ENOENT)
|
|
log_warning_errno(r, "Failed to read EFI variable %s: %m", name);
|
|
}
|
|
|
|
static int verb_status(int argc, char *argv[], void *userdata) {
|
|
|
|
sd_id128_t uuid = SD_ID128_NULL;
|
|
int r, k;
|
|
|
|
r = acquire_esp(geteuid() != 0, NULL, NULL, NULL, &uuid);
|
|
|
|
if (arg_print_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: %m");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
puts(arg_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 */
|
|
|
|
(void) pager_open(arg_no_pager, false);
|
|
|
|
if (is_efi_boot()) {
|
|
_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;
|
|
|
|
read_loader_efi_var("LoaderFirmwareType", &fw_type);
|
|
read_loader_efi_var("LoaderFirmwareInfo", &fw_info);
|
|
read_loader_efi_var("LoaderInfo", &loader);
|
|
read_loader_efi_var("StubInfo", &stub);
|
|
read_loader_efi_var("LoaderImageIdentifier", &loader_path);
|
|
|
|
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");
|
|
|
|
printf("System:\n");
|
|
printf(" Firmware: %s%s (%s)%s\n", ansi_highlight(), strna(fw_type), strna(fw_info), ansi_normal());
|
|
printf(" Secure Boot: %sd\n", enable_disable(is_efi_secure_boot()));
|
|
printf(" Setup Mode: %s\n", is_efi_secure_boot_setup_mode() ? "setup" : "user");
|
|
printf("\n");
|
|
|
|
printf("Current Boot Loader:\n");
|
|
printf(" Product: %s%s%s\n", ansi_highlight(), strna(loader), ansi_normal());
|
|
if (stub)
|
|
printf(" Stub: %s\n", stub);
|
|
if (!sd_id128_is_null(loader_part_uuid))
|
|
printf(" ESP: /dev/disk/by-partuuid/%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\n",
|
|
SD_ID128_FORMAT_VAL(loader_part_uuid));
|
|
else
|
|
printf(" ESP: n/a\n");
|
|
printf(" File: %s%s\n", special_glyph(TREE_RIGHT), strna(loader_path));
|
|
printf("\n");
|
|
} else
|
|
printf("System:\n Not booted with EFI\n\n");
|
|
|
|
if (arg_path) {
|
|
k = status_binaries(arg_path, uuid);
|
|
if (k < 0)
|
|
r = k;
|
|
}
|
|
|
|
if (is_efi_boot()) {
|
|
k = status_variables();
|
|
if (k < 0)
|
|
r = k;
|
|
}
|
|
|
|
if (arg_path) {
|
|
k = status_entries(arg_path, uuid);
|
|
if (k < 0)
|
|
r = k;
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
static int verb_list(int argc, char *argv[], void *userdata) {
|
|
_cleanup_(boot_config_free) BootConfig config = {};
|
|
_cleanup_free_ char **found_by_loader = NULL;
|
|
sd_id128_t uuid = SD_ID128_NULL;
|
|
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(geteuid() != 0, NULL, NULL, NULL, &uuid);
|
|
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 = boot_entries_load_config(arg_path, &config);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = efi_loader_get_entries(&found_by_loader);
|
|
if (r < 0 && !IN_SET(r, -ENOENT, -EOPNOTSUPP))
|
|
log_debug_errno(r, "Failed to acquire boot loader discovered entries: %m");
|
|
|
|
if (config.n_entries == 0)
|
|
log_info("No boot loader entries found.");
|
|
else {
|
|
size_t n;
|
|
|
|
(void) pager_open(arg_no_pager, false);
|
|
|
|
printf("Boot Loader Entries:\n");
|
|
|
|
for (n = 0; n < config.n_entries; n++) {
|
|
r = boot_entry_show(config.entries + n, n == (size_t) config.default_entry);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
puts("");
|
|
|
|
strv_remove(found_by_loader, config.entries[n].id);
|
|
}
|
|
}
|
|
|
|
if (!strv_isempty(found_by_loader)) {
|
|
char **i;
|
|
|
|
printf("Automatic/Other Entries Found by Boot Loader:\n\n");
|
|
|
|
STRV_FOREACH(i, found_by_loader)
|
|
puts(*i);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sync_esp(void) {
|
|
_cleanup_close_ int fd = -1;
|
|
|
|
if (!arg_path)
|
|
return 0;
|
|
|
|
fd = open(arg_path, O_CLOEXEC|O_DIRECTORY|O_RDONLY);
|
|
if (fd < 0)
|
|
return log_error_errno(errno, "Couldn't open ESP '%s' for synchronization: %m", arg_path);
|
|
|
|
if (syncfs(fd) < 0)
|
|
return log_error_errno(errno, "Failed to synchronize the ESP '%s': %m", arg_path);
|
|
|
|
return 1;
|
|
}
|
|
|
|
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;
|
|
int r;
|
|
|
|
r = acquire_esp(false, &part, &pstart, &psize, &uuid);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
install = streq(argv[0], "install");
|
|
|
|
RUN_WITH_UMASK(0002) {
|
|
r = install_binaries(arg_path, install);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (install) {
|
|
r = install_loader_config(arg_path);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
}
|
|
|
|
(void) sync_esp();
|
|
|
|
if (arg_touch_variables)
|
|
r = install_variables(arg_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;
|
|
|
|
r = acquire_esp(false, NULL, NULL, NULL, &uuid);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = remove_binaries(arg_path);
|
|
|
|
(void) sync_esp();
|
|
|
|
if (arg_touch_variables) {
|
|
int q;
|
|
|
|
q = remove_variables(uuid, "/EFI/systemd/systemd-boot" EFI_MACHINE_TYPE_NAME ".efi", true);
|
|
if (q < 0 && r == 0)
|
|
r = q;
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
static int verb_set_default(int argc, char *argv[], void *userdata) {
|
|
const char *name;
|
|
int r;
|
|
|
|
if (!is_efi_boot()) {
|
|
log_error("Not booted with UEFI.");
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
if (access("/sys/firmware/efi/efivars/LoaderInfo-4a67b082-0a4c-41cf-b6c7-440b29bb8c4f", 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) {
|
|
log_error("'%s' operation not supported in a container.", argv[0]);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
if (!arg_touch_variables) {
|
|
log_error("'%s' operation cannot be combined with --touch-variables=no.", argv[0]);
|
|
return -EINVAL;
|
|
}
|
|
|
|
name = streq(argv[0], "set-default") ? "LoaderEntryDefault" : "LoaderEntryOneShot";
|
|
|
|
if (isempty(argv[1])) {
|
|
r = efi_set_variable(EFI_VENDOR_LOADER, name, NULL, 0);
|
|
if (r < 0 && r != -ENOENT)
|
|
return log_error_errno(r, "Failed to remove EFI variale: %m");
|
|
} else {
|
|
_cleanup_free_ char16_t *encoded = NULL;
|
|
|
|
encoded = utf8_to_utf16(argv[1], strlen(argv[1]));
|
|
if (!encoded)
|
|
return log_oom();
|
|
|
|
r = efi_set_variable(EFI_VENDOR_LOADER, name, encoded, char16_strlen(encoded) * 2 + 2);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to update EFI variable: %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, VERB_MUST_BE_ROOT, verb_install },
|
|
{ "update", VERB_ANY, 1, VERB_MUST_BE_ROOT, verb_install },
|
|
{ "remove", VERB_ANY, 1, VERB_MUST_BE_ROOT, verb_remove },
|
|
{ "list", VERB_ANY, 1, 0, verb_list },
|
|
{ "set-default", 2, 2, VERB_MUST_BE_ROOT, verb_set_default },
|
|
{ "set-oneshot", 2, 2, VERB_MUST_BE_ROOT, verb_set_default },
|
|
{}
|
|
};
|
|
|
|
return dispatch_verb(argc, argv, verbs, NULL);
|
|
}
|
|
|
|
int main(int argc, char *argv[]) {
|
|
int r;
|
|
|
|
log_parse_environment();
|
|
log_open();
|
|
|
|
/* If we run in a container, automatically turn of EFI file system access */
|
|
if (detect_container() > 0)
|
|
arg_touch_variables = false;
|
|
|
|
r = parse_argv(argc, argv);
|
|
if (r <= 0)
|
|
goto finish;
|
|
|
|
r = bootctl_main(argc, argv);
|
|
|
|
finish:
|
|
pager_close();
|
|
free(arg_path);
|
|
|
|
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
|
|
}
|