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-rw-r--r--src/boot/bootctl.c271
1 files changed, 271 insertions, 0 deletions
diff --git a/src/boot/bootctl.c b/src/boot/bootctl.c
new file mode 100644
index 0000000000..641546bc08
--- /dev/null
+++ b/src/boot/bootctl.c
@@ -0,0 +1,271 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Kay Sievers
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <stdlib.h>
+#include <stdbool.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <locale.h>
+#include <string.h>
+#include <sys/timex.h>
+
+#include "boot.h"
+#include "build.h"
+#include "util.h"
+#include "utf8.h"
+
+static int help(void) {
+ printf("%s [OPTIONS...] COMMAND ...\n\n"
+ "Query or change firmware and boot mananger settings.\n\n"
+ " -h --help Show this help\n"
+ " --version Show package version\n"
+ "Commands:\n"
+ " status Show current time settings\n",
+ program_invocation_short_name);
+
+ return 0;
+}
+
+static int parse_argv(int argc, char *argv[]) {
+ enum {
+ ARG_VERSION = 0x100,
+ };
+
+ static const struct option options[] = {
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, ARG_VERSION },
+ { NULL, 0, NULL, 0 }
+ };
+
+ int c;
+
+ assert(argc >= 0);
+ assert(argv);
+ while ((c = getopt_long(argc, argv, "+hH:P", options, NULL)) >= 0) {
+
+ switch (c) {
+
+ case 'h':
+ help();
+ return 0;
+
+ case ARG_VERSION:
+ puts(PACKAGE_STRING);
+ puts(SYSTEMD_FEATURES);
+ return 0;
+
+ case '?':
+ return -EINVAL;
+
+ default:
+ log_error("Unknown option code %c", c);
+ return -EINVAL;
+ }
+ }
+
+ return 1;
+}
+
+static int boot_info_new(struct boot_info **info) {
+ struct boot_info *in;
+ int err;
+
+ in = new0(struct boot_info, 1);
+ if (!in)
+ return -ENOMEM;
+
+ err = sd_id128_get_machine(&in->machine_id);
+ if (err < 0)
+ goto err;
+
+ err = sd_id128_get_boot(&in->boot_id);
+ if (err < 0)
+ goto err;
+
+ in->fw_entry_active = -1;
+ in->loader_entry_active = -1;
+
+ *info = in;
+ return 0;
+err:
+ free(in);
+ return err;
+}
+
+static void boot_info_entries_free(struct boot_info_entry *entries, size_t n) {
+ size_t i;
+
+ for (i = 0; i < n; i++) {
+ free(entries[i].title);
+ free(entries[i].path);
+ }
+ free(entries);
+}
+
+static void boot_info_free(struct boot_info *info) {
+ free(info->fw_type);
+ free(info->fw_info);
+ boot_info_entries_free(info->fw_entries, info->fw_entries_count);
+ free(info->fw_entries_order);
+ free(info->loader);
+ free(info->loader_image_path);
+ free(info->loader_options_added);
+ boot_info_entries_free(info->loader_entries, info->loader_entries_count);
+ free(info);
+}
+
+static int show_status(char **args, unsigned n) {
+ char buf[64];
+ struct boot_info *info;
+ int err;
+
+ err = boot_info_new(&info);
+ if (err < 0)
+ return -ENOMEM;
+
+ err = boot_info_query(info);
+
+ printf(" Machine ID: %s\n", sd_id128_to_string(info->machine_id, buf));
+ printf(" Boot ID: %s\n", sd_id128_to_string(info->boot_id, buf));
+ if (info->fw_type)
+ printf(" Firmware: %s (%s)\n", info->fw_type, strna(info->fw_info));
+
+ if (info->fw_entry_active >= 0) {
+ printf("Firmware entry: %s\n", info->fw_entries[info->fw_entry_active].title);
+ if (info->fw_entries[info->fw_entry_active].path)
+ printf(" %s\n", info->fw_entries[info->fw_entry_active].path);
+ if (!sd_id128_equal(info->fw_entries[info->fw_entry_active].part_uuid, SD_ID128_NULL))
+ printf(" %s\n", sd_id128_to_string(info->fw_entries[info->fw_entry_active].part_uuid, buf));
+ }
+
+ if (info->loader) {
+ printf(" Loader: %s\n", info->loader);
+ printf(" %s\n", strna(info->loader_image_path));
+ if (!sd_id128_equal(info->loader_part_uuid, SD_ID128_NULL))
+ printf(" %s\n", sd_id128_to_string(info->loader_part_uuid, buf));
+
+ if (info->loader_entry_active >= 0) {
+ printf(" Loader entry: %s\n", info->loader_entries[info->loader_entry_active].title);
+ printf(" %s\n", info->loader_entries[info->loader_entry_active].path);
+ }
+
+ printf("Loader options: %s\n", strna(info->loader_options_added));
+ } else
+ printf("No suitable data is provided by the boot manager. See:\n"
+ " http://www.freedesktop.org/wiki/Software/systemd/BootLoaderInterface\n"
+ " http://www.freedesktop.org/wiki/Specifications/BootLoaderSpec\n"
+ "for details.\n");
+ printf("\n");
+
+ boot_info_free(info);
+ return err;
+}
+
+static int bootctl_main(int argc, char *argv[]) {
+ static const struct {
+ const char* verb;
+ const enum {
+ MORE,
+ LESS,
+ EQUAL
+ } argc_cmp;
+ const int argc;
+ int (* const dispatch)(char **args, unsigned n);
+ } verbs[] = {
+ { "status", LESS, 1, show_status },
+ };
+
+ int left;
+ unsigned i;
+
+ assert(argc >= 0);
+ assert(argv);
+
+ left = argc - optind;
+
+ if (left <= 0)
+ /* Special rule: no arguments means "status" */
+ i = 0;
+ else {
+ if (streq(argv[optind], "help")) {
+ help();
+ return 0;
+ }
+
+ for (i = 0; i < ELEMENTSOF(verbs); i++)
+ if (streq(argv[optind], verbs[i].verb))
+ break;
+
+ if (i >= ELEMENTSOF(verbs)) {
+ log_error("Unknown operation %s", argv[optind]);
+ return -EINVAL;
+ }
+ }
+
+ switch (verbs[i].argc_cmp) {
+
+ case EQUAL:
+ if (left != verbs[i].argc) {
+ log_error("Invalid number of arguments.");
+ return -EINVAL;
+ }
+ break;
+
+ case MORE:
+ if (left < verbs[i].argc) {
+ log_error("Too few arguments.");
+ return -EINVAL;
+ }
+ break;
+
+ case LESS:
+ if (left > verbs[i].argc) {
+ log_error("Too many arguments.");
+ return -EINVAL;
+ }
+ break;
+
+ default:
+ assert_not_reached("Unknown comparison operator.");
+ }
+
+ return verbs[i].dispatch(argv + optind, left);
+}
+
+int main(int argc, char *argv[]) {
+ int r, retval = EXIT_FAILURE;
+
+ log_parse_environment();
+ log_open();
+
+ r = parse_argv(argc, argv);
+ if (r < 0)
+ goto finish;
+ else if (r == 0) {
+ retval = EXIT_SUCCESS;
+ goto finish;
+ }
+
+ r = bootctl_main(argc, argv);
+ retval = r < 0 ? EXIT_FAILURE : r;
+finish:
+ return retval;
+}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-10 08:32:06 +0000