142 lines
4 KiB
C
142 lines
4 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2013 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <unistd.h>
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#include <stdlib.h>
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#include "efivars.h"
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#include "path-util.h"
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#include "util.h"
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#include "mkdir.h"
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#include "unit-name.h"
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static const char *arg_dest = "/tmp";
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int main(int argc, char *argv[]) {
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int r = EXIT_SUCCESS;
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sd_id128_t id;
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_cleanup_free_ char *name = NULL, *what = NULL, *fsck = NULL;
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_cleanup_fclose_ FILE *f = NULL;
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if (argc > 1 && argc != 4) {
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log_error("This program takes three or no arguments.");
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return EXIT_FAILURE;
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}
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if (argc > 1)
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arg_dest = argv[3];
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log_set_target(LOG_TARGET_SAFE);
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log_parse_environment();
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log_open();
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umask(0022);
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if (!is_efi_boot())
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return EXIT_SUCCESS;
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if (dir_is_empty("/boot") <= 0)
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return EXIT_SUCCESS;
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r = efi_loader_get_device_part_uuid(&id);
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if (r == -ENOENT)
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return EXIT_SUCCESS;
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if (r < 0) {
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log_error("Failed to read ESP partition UUID: %s", strerror(-r));
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return EXIT_FAILURE;
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}
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name = strjoin(arg_dest, "/boot.mount", NULL);
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if (!name) {
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log_oom();
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return EXIT_FAILURE;
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}
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f = fopen(name, "wxe");
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if (!f) {
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log_error("Failed to create mount unit file %s: %m", name);
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return EXIT_FAILURE;
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}
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r = asprintf(&what,
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"/dev/disk/by-partuuid/%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
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SD_ID128_FORMAT_VAL(id));
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if (r < 0) {
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log_oom();
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return EXIT_FAILURE;
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}
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fsck = unit_name_from_path_instance("systemd-fsck", what, ".service");
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if (!fsck) {
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log_oom();
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return EXIT_FAILURE;
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}
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fprintf(f,
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"# Automatially generated by systemd-efi-boot-generator\n\n"
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"[Unit]\n"
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"Description=EFI System Partition\n"
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"Requires=%s\n"
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"After=%s\n"
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"\n"
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"[Mount]\n"
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"Where=/boot\n"
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"What=%s\n"
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"Options=umask=0077\n",
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fsck, fsck, what);
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free(name);
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name = strjoin(arg_dest, "/boot.automount", NULL);
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if (!name) {
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log_oom();
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return EXIT_FAILURE;
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}
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fclose(f);
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f = fopen(name, "wxe");
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if (!f) {
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log_error("Failed to create automount unit file %s: %m", name);
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return EXIT_FAILURE;
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}
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fputs("# Automatially generated by systemd-efi-boot-generator\n\n"
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"[Unit]\n"
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"Description=EFI System Partition Automount\n\n"
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"[Automount]\n"
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"Where=/boot\n", f);
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free(name);
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name = strjoin(arg_dest, "/local-fs.target.wants/boot.automount", NULL);
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if (!name) {
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log_oom();
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return EXIT_FAILURE;
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}
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mkdir_parents(name, 0755);
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if (symlink("../boot.automount", name) < 0) {
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log_error("Failed to create symlink %s: %m", name);
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return EXIT_FAILURE;
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}
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return 0;
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}
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