static int add_mount(
const char *id,
const char *what,
const char *where,
const char *fstype,
bool rw,
const char *options,
const char *description,
const char *post) {
_cleanup_free_ char *unit = NULL, *lnk = NULL, *crypto_what = NULL, *p = NULL;
_cleanup_fclose_ FILE *f = NULL;
int r;
assert(id);
assert(what);
assert(where);
assert(description);
log_debug("Adding %s: %s %s", where, what, strna(fstype));
if (streq_ptr(fstype, "crypto_LUKS")) {
r = add_cryptsetup(id, what, rw, &crypto_what);
if (r < 0)
return r;
what = crypto_what;
fstype = NULL;
}
r = unit_name_from_path(where, ".mount", &unit);
if (r < 0)
return log_error_errno(r, "Failed to generate unit name: %m");
p = strjoin(arg_dest, "/", unit, NULL);
if (!p)
return log_oom();
f = fopen(p, "wxe");
if (!f)
return log_error_errno(errno, "Failed to create unit file %s: %m", unit);
fprintf(f,
"# Automatically generated by systemd-gpt-auto-generator\n\n"
"[Unit]\n"
"Description=%s\n"
"Documentation=man:systemd-gpt-auto-generator(8)\n",
description);
if (post)
fprintf(f, "Before=%s\n", post);
r = generator_write_fsck_deps(f, arg_dest, what, where, fstype);
if (r < 0)
return r;
fprintf(f,
"\n"
"[Mount]\n"
"What=%s\n"
"Where=%s\n",
what, where);
if (fstype)
fprintf(f, "Type=%s\n", fstype);
if (options)
fprintf(f, "Options=%s,%s\n", options, rw ? "rw" : "ro");
else
fprintf(f, "Options=%s\n", rw ? "rw" : "ro");
r = fflush_and_check(f);
if (r < 0)
return log_error_errno(r, "Failed to write unit file %s: %m", p);
if (post) {
lnk = strjoin(arg_dest, "/", post, ".requires/", unit, NULL);
if (!lnk)
return log_oom();
mkdir_parents_label(lnk, 0755);
if (symlink(p, lnk) < 0)
return log_error_errno(errno, "Failed to create symlink %s: %m", lnk);
}
return 0;
}
static int add_mount(
const char *what,
const char *where,
const char *fstype,
const char *opts,
int passno,
bool noauto,
bool nofail,
bool automount,
const char *post,
const char *source) {
_cleanup_free_ char
*name = NULL, *unit = NULL, *lnk = NULL,
*automount_name = NULL, *automount_unit = NULL,
*filtered = NULL;
_cleanup_fclose_ FILE *f = NULL;
int r;
assert(what);
assert(where);
assert(opts);
assert(source);
if (streq_ptr(fstype, "autofs"))
return 0;
if (!is_path(where)) {
log_warning("Mount point %s is not a valid path, ignoring.", where);
return 0;
}
if (mount_point_is_api(where) ||
mount_point_ignore(where))
return 0;
if (path_equal(where, "/")) {
/* The root disk is not an option */
automount = false;
noauto = false;
nofail = false;
}
name = unit_name_from_path(where, ".mount");
if (!name)
return log_oom();
unit = strjoin(arg_dest, "/", name, NULL);
if (!unit)
return log_oom();
f = fopen(unit, "wxe");
if (!f) {
if (errno == EEXIST)
log_error("Failed to create mount unit file %s, as it already exists. Duplicate entry in /etc/fstab?", unit);
else
log_error_errno(errno, "Failed to create unit file %s: %m", unit);
return -errno;
}
fprintf(f,
"# Automatically generated by systemd-fstab-generator\n\n"
"[Unit]\n"
"SourcePath=%s\n"
"Documentation=man:fstab(5) man:systemd-fstab-generator(8)\n",
source);
if (post && !noauto && !nofail && !automount)
fprintf(f, "Before=%s\n", post);
if (passno != 0) {
r = generator_write_fsck_deps(f, arg_dest, what, where, fstype);
if (r < 0)
return r;
}
fprintf(f,
"\n"
"[Mount]\n"
"What=%s\n"
"Where=%s\n",
what,
where);
if (!isempty(fstype) && !streq(fstype, "auto"))
fprintf(f, "Type=%s\n", fstype);
r = generator_write_timeouts(arg_dest, what, where, opts, &filtered);
if (r < 0)
return r;
if (!isempty(filtered) && !streq(filtered, "defaults"))
fprintf(f, "Options=%s\n", filtered);
fflush(f);
if (ferror(f))
return log_error_errno(errno, "Failed to write unit file %s: %m", unit);
if (!noauto && post) {
lnk = strjoin(arg_dest, "/", post, nofail || automount ? ".wants/" : ".requires/", name, NULL);
if (!lnk)
return log_oom();
mkdir_parents_label(lnk, 0755);
if (symlink(unit, lnk) < 0)
return log_error_errno(errno, "Failed to create symlink %s: %m", lnk);
}
if (automount) {
automount_name = unit_name_from_path(where, ".automount");
if (!automount_name)
return log_oom();
automount_unit = strjoin(arg_dest, "/", automount_name, NULL);
if (!automount_unit)
return log_oom();
fclose(f);
f = fopen(automount_unit, "wxe");
if (!f)
return log_error_errno(errno, "Failed to create unit file %s: %m", automount_unit);
fprintf(f,
"# Automatically generated by systemd-fstab-generator\n\n"
"[Unit]\n"
"SourcePath=%s\n"
"Documentation=man:fstab(5) man:systemd-fstab-generator(8)\n",
source);
if (post)
fprintf(f,
"Before=%s\n",
post);
fprintf(f,
"[Automount]\n"
"Where=%s\n",
where);
fflush(f);
if (ferror(f))
return log_error_errno(errno, "Failed to write unit file %s: %m", automount_unit);
free(lnk);
lnk = strjoin(arg_dest, "/", post, nofail ? ".wants/" : ".requires/", automount_name, NULL);
if (!lnk)
return log_oom();
mkdir_parents_label(lnk, 0755);
if (symlink(automount_unit, lnk) < 0)
return log_error_errno(errno, "Failed to create symlink %s: %m", lnk);
}
return 0;
}
int main(int argc, char *argv[]) {
_cleanup_free_ char *what = NULL;
_cleanup_fclose_ FILE *f = NULL;
int r = EXIT_SUCCESS;
sd_id128_t id;
char *name;
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 (in_initrd()) {
log_debug("In initrd, exiting.");
return EXIT_SUCCESS;
}
if (detect_container(NULL) > 0) {
log_debug("In a container, exiting.");
return EXIT_SUCCESS;
}
if (!is_efi_boot()) {
log_debug("Not an EFI boot, exiting.");
return EXIT_SUCCESS;
}
if (path_is_mount_point("/boot", true) <= 0 &&
dir_is_empty("/boot") <= 0) {
log_debug("/boot already populated, exiting.");
return EXIT_SUCCESS;
}
r = efi_loader_get_device_part_uuid(&id);
if (r == -ENOENT) {
log_debug("EFI loader partition unknown, exiting.");
return EXIT_SUCCESS;
} else if (r < 0) {
log_error_errno(r, "Failed to read ESP partition UUID: %m");
return EXIT_FAILURE;
}
name = strjoina(arg_dest, "/boot.mount");
f = fopen(name, "wxe");
if (!f) {
log_error_errno(errno, "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;
}
fprintf(f,
"# Automatially generated by systemd-efi-boot-generator\n\n"
"[Unit]\n"
"Description=EFI System Partition\n"
"Documentation=man:systemd-efi-boot-generator(8)\n");
r = generator_write_fsck_deps(f, arg_dest, what, "/boot", "vfat");
if (r < 0)
return EXIT_FAILURE;
fprintf(f,
"\n"
"[Mount]\n"
"What=%s\n"
"Where=/boot\n"
"Type=vfat\n"
"Options=umask=0077,noauto\n",
what);
fflush(f);
if (ferror(f)) {
log_error_errno(errno, "Failed to write mount unit file: %m");
return EXIT_FAILURE;
}
name = strjoina(arg_dest, "/boot.automount");
fclose(f);
f = fopen(name, "wxe");
if (!f) {
log_error_errno(errno, "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);
fflush(f);
if (ferror(f)) {
log_error_errno(errno, "Failed to write automount unit file: %m");
return EXIT_FAILURE;
}
name = strjoina(arg_dest, "/" SPECIAL_LOCAL_FS_TARGET ".wants/boot.automount");
mkdir_parents(name, 0755);
if (symlink("../boot.automount", name) < 0) {
log_error_errno(errno, "Failed to create symlink %s: %m", name);
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
