-/***
- This file is part of systemd.
-
- Copyright 2014 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/>.
-***/
+/* SPDX-License-Identifier: LGPL-2.1+ */
#include <errno.h>
+#include <stdio_ext.h>
#include <unistd.h>
#include "alloc-util.h"
#include "mkdir.h"
#include "path-util.h"
#include "special.h"
+#include "specifier.h"
#include "string-util.h"
#include "time-util.h"
#include "unit-name.h"
#include "util.h"
+int generator_open_unit_file(
+ const char *dest,
+ const char *source,
+ const char *name,
+ FILE **file) {
+
+ const char *unit;
+ FILE *f;
+
+ unit = strjoina(dest, "/", name);
+
+ f = fopen(unit, "wxe");
+ if (!f) {
+ if (source && errno == EEXIST)
+ return log_error_errno(errno,
+ "Failed to create unit file %s, as it already exists. Duplicate entry in %s?",
+ unit, source);
+ else
+ return log_error_errno(errno,
+ "Failed to create unit file %s: %m",
+ unit);
+ }
+
+ (void) __fsetlocking(f, FSETLOCKING_BYCALLER);
+
+ fprintf(f,
+ "# Automatically generated by %s\n\n",
+ program_invocation_short_name);
+
+ *file = f;
+ return 0;
+}
+
+int generator_add_symlink(const char *root, const char *dst, const char *dep_type, const char *src) {
+ /* Adds a symlink from <dst>.<dep_type>.d/ to ../<src> */
+
+ const char *from, *to;
+
+ from = strjoina("../", src);
+ to = strjoina(root, "/", dst, ".", dep_type, "/", src);
+
+ mkdir_parents_label(to, 0755);
+ if (symlink(from, to) < 0)
+ if (errno != EEXIST)
+ return log_error_errno(errno, "Failed to create symlink \"%s\": %m", to);
+
+ return 0;
+}
+
static int write_fsck_sysroot_service(const char *dir, const char *what) {
- _cleanup_free_ char *device = NULL, *escaped = NULL;
+ _cleanup_free_ char *device = NULL, *escaped = NULL, *escaped2 = NULL;
_cleanup_fclose_ FILE *f = NULL;
const char *unit;
int r;
- escaped = cescape(what);
+ escaped = specifier_escape(what);
if (!escaped)
return log_oom();
+ escaped2 = cescape(escaped);
+ if (!escaped2)
+ return log_oom();
+
unit = strjoina(dir, "/systemd-fsck-root.service");
log_debug("Creating %s", unit);
fprintf(f,
"# Automatically generated by %1$s\n\n"
"[Unit]\n"
- "Documentation=man:systemd-fsck-root.service(8)\n"
"Description=File System Check on %2$s\n"
+ "Documentation=man:systemd-fsck-root.service(8)\n"
"DefaultDependencies=no\n"
"BindsTo=%3$s\n"
"After=initrd-root-device.target local-fs-pre.target %3$s\n"
"ExecStart=" SYSTEMD_FSCK_PATH " %4$s\n"
"TimeoutSec=0\n",
program_invocation_short_name,
- what,
+ escaped,
device,
- escaped);
+ escaped2);
r = fflush_and_check(f);
if (r < 0)
usec_t u;
int r;
- r = fstab_filter_options(opts, "comment=systemd.device-timeout\0" "x-systemd.device-timeout\0",
+ r = fstab_filter_options(opts, "comment=systemd.device-timeout\0"
+ "x-systemd.device-timeout\0",
NULL, &timeout, filtered);
if (r <= 0)
return r;
- r = parse_sec(timeout, &u);
+ r = parse_sec_fix_0(timeout, &u);
if (r < 0) {
log_warning("Failed to parse timeout for %s, ignoring: %s", where, timeout);
return 0;
node = fstab_node_to_udev_node(what);
if (!node)
return log_oom();
+ if (!is_device_path(node)) {
+ log_warning("x-systemd.device-timeout ignored for %s", what);
+ return 0;
+ }
r = unit_name_from_path(node, ".device", &unit);
if (r < 0)
return write_drop_in_format(dir, unit, 50, "device-timeout",
"# Automatically generated by %s\n\n"
- "[Unit]\nJobTimeoutSec=%s",
- program_invocation_short_name, timeout);
+ "[Unit]\n"
+ "JobRunningTimeoutSec=%s",
+ program_invocation_short_name,
+ timeout);
}
int generator_write_device_deps(
r = unit_name_from_path(node, ".device", &unit);
if (r < 0)
- return log_error_errno(r, "Failed to make unit name from path: %m");
+ return log_error_errno(r, "Failed to make unit name from path \"%s\": %m",
+ node);
/* See mount_add_default_dependencies for explanation why we create such
* dependencies. */
r = unit_name_from_path(what, ".device", &unit);
if (r < 0)
- return log_error_errno(r, "Failed to make unit name from path: %m");
+ return log_error_errno(r, "Failed to make unit name from path \"%s\": %m",
+ what);
return write_drop_in_format(dir, SPECIAL_INITRD_ROOT_DEVICE_TARGET, 50, "root-device",
"# Automatically generated by %s\n\n"
- "[Unit]\nRequires=%s\nAfter=%s",
- program_invocation_short_name, unit, unit);
+ "[Unit]\n"
+ "Requires=%s\n"
+ "After=%s",
+ program_invocation_short_name,
+ unit,
+ unit);
+}
+
+int generator_hook_up_mkswap(
+ const char *dir,
+ const char *what) {
+
+ _cleanup_free_ char *node = NULL, *unit = NULL, *escaped = NULL, *where_unit = NULL;
+ _cleanup_fclose_ FILE *f = NULL;
+ const char *unit_file;
+ int r;
+
+ node = fstab_node_to_udev_node(what);
+ if (!node)
+ return log_oom();
+
+ /* Nothing to work on. */
+ if (!is_device_path(node))
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "Cannot format something that is not a device node: %s",
+ node);
+
+ r = unit_name_from_path_instance("systemd-mkswap", node, ".service", &unit);
+ if (r < 0)
+ return log_error_errno(r, "Failed to make unit instance name from path \"%s\": %m",
+ node);
+
+ unit_file = strjoina(dir, "/", unit);
+ log_debug("Creating %s", unit_file);
+
+ escaped = cescape(node);
+ if (!escaped)
+ return log_oom();
+
+ r = unit_name_from_path(what, ".swap", &where_unit);
+ if (r < 0)
+ return log_error_errno(r, "Failed to make unit name from path \"%s\": %m",
+ what);
+
+ f = fopen(unit_file, "wxe");
+ if (!f)
+ return log_error_errno(errno, "Failed to create unit file %s: %m",
+ unit_file);
+
+ fprintf(f,
+ "# Automatically generated by %s\n\n"
+ "[Unit]\n"
+ "Description=Make Swap on %%f\n"
+ "Documentation=man:systemd-mkswap@.service(8)\n"
+ "DefaultDependencies=no\n"
+ "BindsTo=%%i.device\n"
+ "After=%%i.device\n"
+ "Before=%s\n"
+ "Before=shutdown.target\n"
+ "\n"
+ "[Service]\n"
+ "Type=oneshot\n"
+ "RemainAfterExit=yes\n"
+ "ExecStart="SYSTEMD_MAKEFS_PATH " swap %s\n"
+ "TimeoutSec=0\n",
+ program_invocation_short_name,
+ where_unit,
+ escaped);
+
+ r = fflush_and_check(f);
+ if (r < 0)
+ return log_error_errno(r, "Failed to write unit file %s: %m", unit_file);
+
+ return generator_add_symlink(dir, where_unit, "requires", unit);
+}
+
+int generator_hook_up_mkfs(
+ const char *dir,
+ const char *what,
+ const char *where,
+ const char *type) {
+
+ _cleanup_free_ char *node = NULL, *unit = NULL, *escaped = NULL, *where_unit = NULL;
+ _cleanup_fclose_ FILE *f = NULL;
+ const char *unit_file;
+ int r;
+
+ node = fstab_node_to_udev_node(what);
+ if (!node)
+ return log_oom();
+
+ /* Nothing to work on. */
+ if (!is_device_path(node))
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "Cannot format something that is not a device node: %s",
+ node);
+
+ if (!type || streq(type, "auto"))
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "Cannot format partition %s, filesystem type is not specified",
+ node);
+
+ r = unit_name_from_path_instance("systemd-mkfs", node, ".service", &unit);
+ if (r < 0)
+ return log_error_errno(r, "Failed to make unit instance name from path \"%s\": %m",
+ node);
+
+ unit_file = strjoina(dir, "/", unit);
+ log_debug("Creating %s", unit_file);
+
+ escaped = cescape(node);
+ if (!escaped)
+ return log_oom();
+
+ r = unit_name_from_path(where, ".mount", &where_unit);
+ if (r < 0)
+ return log_error_errno(r, "Failed to make unit name from path \"%s\": %m",
+ where);
+
+ f = fopen(unit_file, "wxe");
+ if (!f)
+ return log_error_errno(errno, "Failed to create unit file %s: %m",
+ unit_file);
+
+ fprintf(f,
+ "# Automatically generated by %s\n\n"
+ "[Unit]\n"
+ "Description=Make File System on %%f\n"
+ "Documentation=man:systemd-mkfs@.service(8)\n"
+ "DefaultDependencies=no\n"
+ "BindsTo=%%i.device\n"
+ "After=%%i.device\n"
+ /* fsck might or might not be used, so let's be safe and order
+ * ourselves before both systemd-fsck@.service and the mount unit. */
+ "Before=systemd-fsck@%%i.service\n"
+ "Before=%s\n"
+ "Before=shutdown.target\n"
+ "\n"
+ "[Service]\n"
+ "Type=oneshot\n"
+ "RemainAfterExit=yes\n"
+ "ExecStart="SYSTEMD_MAKEFS_PATH " %s %s\n"
+ "TimeoutSec=0\n",
+ program_invocation_short_name,
+ where_unit,
+ type,
+ escaped);
+ // XXX: what about local-fs-pre.target?
+
+ r = fflush_and_check(f);
+ if (r < 0)
+ return log_error_errno(r, "Failed to write unit file %s: %m", unit_file);
+
+ return generator_add_symlink(dir, where_unit, "requires", unit);
+}
+
+int generator_hook_up_growfs(
+ const char *dir,
+ const char *where,
+ const char *target) {
+
+ _cleanup_free_ char *unit = NULL, *escaped = NULL, *where_unit = NULL;
+ _cleanup_fclose_ FILE *f = NULL;
+ const char *unit_file;
+ int r;
+
+ escaped = cescape(where);
+ if (!escaped)
+ return log_oom();
+
+ r = unit_name_from_path_instance("systemd-growfs", where, ".service", &unit);
+ if (r < 0)
+ return log_error_errno(r, "Failed to make unit instance name from path \"%s\": %m",
+ where);
+
+ r = unit_name_from_path(where, ".mount", &where_unit);
+ if (r < 0)
+ return log_error_errno(r, "Failed to make unit name from path \"%s\": %m",
+ where);
+
+ unit_file = strjoina(dir, "/", unit);
+ log_debug("Creating %s", unit_file);
+
+ f = fopen(unit_file, "wxe");
+ if (!f)
+ return log_error_errno(errno, "Failed to create unit file %s: %m",
+ unit_file);
+
+ fprintf(f,
+ "# Automatically generated by %s\n\n"
+ "[Unit]\n"
+ "Description=Grow File System on %%f\n"
+ "Documentation=man:systemd-growfs@.service(8)\n"
+ "DefaultDependencies=no\n"
+ "BindsTo=%%i.mount\n"
+ "After=%%i.mount\n"
+ "Before=shutdown.target\n"
+ "Before=%s\n"
+ "\n"
+ "[Service]\n"
+ "Type=oneshot\n"
+ "RemainAfterExit=yes\n"
+ "ExecStart="SYSTEMD_GROWFS_PATH " %s\n"
+ "TimeoutSec=0\n",
+ program_invocation_short_name,
+ target,
+ escaped);
+
+ return generator_add_symlink(dir, where_unit, "wants", unit);
+}
+
+void log_setup_generator(void) {
+ log_set_prohibit_ipc(true);
+ log_setup_service();
}
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