2014-03-05 22:26:10 +01:00
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/*-*- 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 2014 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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2014-04-12 22:07:45 +02:00
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#include <string.h>
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2014-03-05 22:26:10 +01:00
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#include <unistd.h>
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#include "util.h"
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#include "special.h"
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#include "mkdir.h"
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#include "unit-name.h"
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#include "generator.h"
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2014-04-12 22:07:45 +02:00
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#include "path-util.h"
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2014-06-27 18:12:07 +02:00
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#include "dropin.h"
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2014-03-05 22:26:10 +01:00
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int generator_write_fsck_deps(
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FILE *f,
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const char *dest,
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const char *what,
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const char *where,
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2014-03-06 21:14:26 +01:00
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const char *fstype) {
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2014-03-05 22:26:10 +01:00
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assert(f);
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2014-03-06 21:14:26 +01:00
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assert(dest);
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assert(what);
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assert(where);
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2014-03-05 22:26:10 +01:00
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if (!is_device_path(what)) {
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log_warning("Checking was requested for \"%s\", but it is not a device.", what);
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return 0;
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}
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2014-03-06 21:14:26 +01:00
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if (!isempty(fstype) && !streq(fstype, "auto")) {
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2014-03-05 22:26:10 +01:00
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int r;
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2014-04-12 22:07:45 +02:00
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r = fsck_exists(fstype);
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2014-06-24 19:37:22 +02:00
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if (r == -ENOENT) {
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2014-03-05 22:26:10 +01:00
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/* treat missing check as essentially OK */
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2014-11-28 13:19:16 +01:00
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log_debug_errno(r, "Checking was requested for %s, but fsck.%s does not exist: %m", what, fstype);
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2014-06-24 19:37:22 +02:00
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return 0;
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2014-11-28 18:50:43 +01:00
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} else if (r < 0)
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return log_warning_errno(r, "Checking was requested for %s, but fsck.%s cannot be used: %m", what, fstype);
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2014-03-05 22:26:10 +01:00
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}
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if (streq(where, "/")) {
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char *lnk;
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lnk = strappenda(dest, "/" SPECIAL_LOCAL_FS_TARGET ".wants/systemd-fsck-root.service");
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mkdir_parents(lnk, 0755);
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2014-11-28 19:57:32 +01:00
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if (symlink(SYSTEM_DATA_UNIT_PATH "/systemd-fsck-root.service", lnk) < 0)
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return log_error_errno(errno, "Failed to create symlink %s: %m", lnk);
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2014-03-05 22:26:10 +01:00
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} else {
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_cleanup_free_ char *fsck = NULL;
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fsck = unit_name_from_path_instance("systemd-fsck", what, ".service");
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if (!fsck)
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return log_oom();
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fprintf(f,
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"RequiresOverridable=%s\n"
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"After=%s\n",
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fsck,
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fsck);
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}
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return 0;
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}
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2014-06-27 18:12:07 +02:00
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int generator_write_timeouts(const char *dir, const char *what, const char *where,
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const char *opts, char **filtered) {
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/* Allow configuration how long we wait for a device that
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* backs a mount point to show up. This is useful to support
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* endless device timeouts for devices that show up only after
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* user input, like crypto devices. */
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_cleanup_free_ char *node = NULL, *unit = NULL, *t = NULL;
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2014-06-27 21:03:05 +02:00
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char *start, *timeout;
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2014-06-27 18:12:07 +02:00
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usec_t u;
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int r;
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size_t len;
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if ((start = mount_test_option(opts, "comment=systemd.device-timeout")))
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timeout = start + 31;
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else if ((start = mount_test_option(opts, "x-systemd.device-timeout")))
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timeout = start + 25;
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else {
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2014-06-27 21:03:05 +02:00
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if (filtered) {
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2014-07-01 00:41:17 +02:00
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*filtered = strdup(opts ?: "");
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2014-06-27 21:03:05 +02:00
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if (!*filtered)
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return log_oom();
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}
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2014-06-27 18:12:07 +02:00
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return 0;
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}
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len = strcspn(timeout, ",;" WHITESPACE);
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t = strndup(timeout, len);
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if (!t)
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return -ENOMEM;
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2014-06-27 21:03:05 +02:00
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if (filtered) {
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char *prefix, *postfix;
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prefix = strndupa(opts, start - opts - (start != opts));
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2014-07-07 22:10:38 +02:00
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postfix = timeout + len + (start == opts && timeout[len] != '\0');
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2014-06-27 21:03:05 +02:00
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*filtered = strjoin(prefix, *postfix ? postfix : NULL, NULL);
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if (!*filtered)
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return log_oom();
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}
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2014-06-27 18:12:07 +02:00
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r = parse_sec(t, &u);
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if (r < 0) {
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log_warning("Failed to parse timeout for %s, ignoring: %s",
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where, timeout);
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return 0;
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}
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node = fstab_node_to_udev_node(what);
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if (!node)
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return log_oom();
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unit = unit_name_from_path(node, ".device");
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if (!unit)
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return -ENOMEM;
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2014-07-01 00:41:17 +02:00
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return write_drop_in_format(dir, unit, 50, "device-timeout",
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"# Automatically generated by %s\n\n"
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2014-07-07 22:49:59 +02:00
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"[Unit]\nJobTimeoutSec=" USEC_FMT,
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2014-07-01 00:41:17 +02:00
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program_invocation_short_name,
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u / USEC_PER_SEC);
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2014-06-27 18:12:07 +02:00
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}
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