1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
33 #include "mount-setup.h"
34 #include "exit-status.h"
36 /* Goes through /etc/fstab and remounts all API file systems, applying
37 * options that are in /etc/fstab that systemd might not have
40 int main(int argc, char *argv[]) {
41 int ret = EXIT_FAILURE;
47 log_error("This program takes no argument.");
51 log_set_target(LOG_TARGET_AUTO);
52 log_parse_environment();
57 f = setmntent("/etc/fstab", "r");
59 if (errno == ENOENT) {
64 log_error("Failed to open /etc/fstab: %m");
68 pids = hashmap_new(trivial_hash_func, trivial_compare_func);
70 log_error("Failed to allocate set");
76 while ((me = getmntent(f))) {
81 /* Remount the root fs and all API VFS */
82 if (!mount_point_is_api(me->mnt_dir) &&
83 !path_equal(me->mnt_dir, "/"))
86 log_debug("Remounting %s", me->mnt_dir);
90 log_error("Failed to fork: %m");
96 const char *arguments[5];
99 arguments[0] = "/bin/mount";
100 arguments[1] = me->mnt_dir;
102 arguments[3] = "remount";
105 execv("/bin/mount", (char **) arguments);
107 log_error("Failed to execute /bin/mount: %m");
113 s = strdup(me->mnt_dir);
115 log_error("Out of memory.");
121 k = hashmap_put(pids, UINT_TO_PTR(pid), s);
123 log_error("Failed to add PID to set: %s", strerror(-k));
129 while (!hashmap_isempty(pids)) {
134 if (waitid(P_ALL, 0, &si, WEXITED) < 0) {
139 log_error("waitid() failed: %m");
144 s = hashmap_remove(pids, UINT_TO_PTR(si.si_pid));
146 if (!is_clean_exit(si.si_code, si.si_status)) {
147 if (si.si_code == CLD_EXITED)
148 log_error("/bin/mount for %s exited with exit status %i.", s, si.si_status);
150 log_error("/bin/mount for %s terminated by signal %s.", s, signal_to_string(si.si_status));
162 hashmap_free_free(pids);