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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2013 Lennart Poettering
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 <unistd.h>
#include <stdlib.h>
#include "efivars.h"
#include "path-util.h"
#include "util.h"
#include "mkdir.h"
#include "unit-name.h"
static const char *arg_dest = "/tmp";
int main(int argc, char *argv[]) {
int r = EXIT_SUCCESS;
sd_id128_t id;
_cleanup_free_ char *name = NULL, *what = NULL, *fsck = NULL;
_cleanup_fclose_ FILE *f = NULL;
if (argc > 1 && argc != 4) {
log_error("This program takes three or no arguments.");
return EXIT_FAILURE;
}
if (argc > 1)
arg_dest = argv[3];
log_set_target(LOG_TARGET_SAFE);
log_parse_environment();
log_open();
umask(0022);
if (!is_efi_boot())
return EXIT_SUCCESS;
if (dir_is_empty("/boot") <= 0)
return EXIT_SUCCESS;
r = efi_loader_get_device_part_uuid(&id);
if (r == -ENOENT)
return EXIT_SUCCESS;
if (r < 0) {
log_error("Failed to read ESP partition UUID: %s", strerror(-r));
return EXIT_FAILURE;
}
name = strjoin(arg_dest, "/boot.mount", NULL);
if (!name) {
log_oom();
return EXIT_FAILURE;
}
f = fopen(name, "wxe");
if (!f) {
log_error("Failed to create mount unit file %s: %m", name);
return EXIT_FAILURE;
}
r = asprintf(&what,
"/dev/disk/by-partuuid/%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
SD_ID128_FORMAT_VAL(id));
if (r < 0) {
log_oom();
return EXIT_FAILURE;
}
fsck = unit_name_from_path_instance("systemd-fsck", what, ".service");
if (!fsck) {
log_oom();
return EXIT_FAILURE;
}
fprintf(f,
"# Automatially generated by systemd-efi-boot-generator\n\n"
"[Unit]\n"
"Description=EFI System Partition\n"
"Requires=%s\n"
"After=%s\n"
"\n"
"[Mount]\n"
"Where=/boot\n"
"What=%s\n"
"Options=umask=0077\n",
fsck, fsck, what);
free(name);
name = strjoin(arg_dest, "/boot.automount", NULL);
if (!name) {
log_oom();
return EXIT_FAILURE;
}
fclose(f);
f = fopen(name, "wxe");
if (!f) {
log_error("Failed to create automount unit file %s: %m", name);
return EXIT_FAILURE;
}
fputs("# Automatially generated by systemd-efi-boot-generator\n\n"
"[Unit]\n"
"Description=EFI System Partition Automount\n\n"
"[Automount]\n"
"Where=/boot\n", f);
free(name);
name = strjoin(arg_dest, "/local-fs.target.wants/boot.automount", NULL);
if (!name) {
log_oom();
return EXIT_FAILURE;
}
mkdir_parents(name, 0755);
if (symlink("../boot.automount", name) < 0) {
log_error("Failed to create symlink %s: %m", name);
return EXIT_FAILURE;
}
return 0;
}
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