/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ /*** 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/>. ***/ #include <string.h> #include <unistd.h> #include "util.h" #include "special.h" #include "mkdir.h" #include "unit-name.h" #include "generator.h" #include "path-util.h" #include "dropin.h" int generator_write_fsck_deps( FILE *f, const char *dest, const char *what, const char *where, const char *fstype) { assert(f); assert(dest); assert(what); assert(where); if (!is_device_path(what)) { log_warning("Checking was requested for \"%s\", but it is not a device.", what); return 0; } if (!isempty(fstype) && !streq(fstype, "auto")) { int r; r = fsck_exists(fstype); if (r == -ENOENT) { /* treat missing check as essentially OK */ log_debug("Checking was requested for %s, but fsck.%s does not exist: %s", what, fstype, strerror(-r)); return 0; } else if (r < 0) { log_warning("Checking was requested for %s, but fsck.%s cannot be used: %s", what, fstype, strerror(-r)); return r; } } if (streq(where, "/")) { char *lnk; lnk = strappenda(dest, "/" SPECIAL_LOCAL_FS_TARGET ".wants/systemd-fsck-root.service"); mkdir_parents(lnk, 0755); if (symlink(SYSTEM_DATA_UNIT_PATH "/systemd-fsck-root.service", lnk) < 0) { log_error("Failed to create symlink %s: %m", lnk); return -errno; } } else { _cleanup_free_ char *fsck = NULL; fsck = unit_name_from_path_instance("systemd-fsck", what, ".service"); if (!fsck) return log_oom(); fprintf(f, "RequiresOverridable=%s\n" "After=%s\n", fsck, fsck); } return 0; } int generator_write_timeouts(const char *dir, const char *what, const char *where, const char *opts, char **filtered) { /* Allow configuration how long we wait for a device that * backs a mount point to show up. This is useful to support * endless device timeouts for devices that show up only after * user input, like crypto devices. */ _cleanup_free_ char *node = NULL, *unit = NULL, *t = NULL; char *start, *timeout; usec_t u; int r; size_t len; if ((start = mount_test_option(opts, "comment=systemd.device-timeout"))) timeout = start + 31; else if ((start = mount_test_option(opts, "x-systemd.device-timeout"))) timeout = start + 25; else { if (filtered) { *filtered = strdup(opts ?: ""); if (!*filtered) return log_oom(); } return 0; } len = strcspn(timeout, ",;" WHITESPACE); t = strndup(timeout, len); if (!t) return -ENOMEM; if (filtered) { char *prefix, *postfix; prefix = strndupa(opts, start - opts - (start != opts)); postfix = timeout + len + (start == opts && timeout[len] != '\0'); *filtered = strjoin(prefix, *postfix ? postfix : NULL, NULL); if (!*filtered) return log_oom(); } r = parse_sec(t, &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(); unit = unit_name_from_path(node, ".device"); if (!unit) return -ENOMEM; return write_drop_in_format(dir, unit, 50, "device-timeout", "# Automatically generated by %s\n\n" "[Unit]\nJobTimeoutSec=" USEC_FMT, program_invocation_short_name, u / USEC_PER_SEC); }