diff options
Diffstat (limited to 'src/remount-fs/remount-fs.c')
| -rw-r--r-- | src/remount-fs/remount-fs.c | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/src/remount-fs/remount-fs.c b/src/remount-fs/remount-fs.c deleted file mode 100644 index 6468d1eecd..0000000000 --- a/src/remount-fs/remount-fs.c +++ /dev/null @@ -1,155 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2010 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 <errno.h> -#include <mntent.h> -#include <string.h> -#include <sys/prctl.h> -#include <sys/stat.h> -#include <sys/wait.h> -#include <unistd.h> - -#include "exit-status.h" -#include "log.h" -#include "mount-setup.h" -#include "mount-util.h" -#include "path-util.h" -#include "process-util.h" -#include "signal-util.h" -#include "strv.h" -#include "util.h" - -/* Goes through /etc/fstab and remounts all API file systems, applying - * options that are in /etc/fstab that systemd might not have - * respected */ - -int main(int argc, char *argv[]) { - _cleanup_hashmap_free_free_ Hashmap *pids = NULL; - _cleanup_endmntent_ FILE *f = NULL; - struct mntent* me; - int r; - - if (argc > 1) { - log_error("This program takes no argument."); - return EXIT_FAILURE; - } - - log_set_target(LOG_TARGET_AUTO); - log_parse_environment(); - log_open(); - - umask(0022); - - f = setmntent("/etc/fstab", "r"); - if (!f) { - if (errno == ENOENT) { - r = 0; - goto finish; - } - - r = log_error_errno(errno, "Failed to open /etc/fstab: %m"); - goto finish; - } - - pids = hashmap_new(NULL); - if (!pids) { - r = log_oom(); - goto finish; - } - - while ((me = getmntent(f))) { - pid_t pid; - int k; - char *s; - - /* Remount the root fs, /usr and all API VFS */ - if (!mount_point_is_api(me->mnt_dir) && - !path_equal(me->mnt_dir, "/") && - !path_equal(me->mnt_dir, "/usr")) - continue; - - log_debug("Remounting %s", me->mnt_dir); - - pid = fork(); - if (pid < 0) { - r = log_error_errno(errno, "Failed to fork: %m"); - goto finish; - } - - if (pid == 0) { - /* Child */ - - (void) reset_all_signal_handlers(); - (void) reset_signal_mask(); - (void) prctl(PR_SET_PDEATHSIG, SIGTERM); - - execv(MOUNT_PATH, STRV_MAKE(MOUNT_PATH, me->mnt_dir, "-o", "remount")); - - log_error_errno(errno, "Failed to execute " MOUNT_PATH ": %m"); - _exit(EXIT_FAILURE); - } - - /* Parent */ - - s = strdup(me->mnt_dir); - if (!s) { - r = log_oom(); - goto finish; - } - - k = hashmap_put(pids, PID_TO_PTR(pid), s); - if (k < 0) { - free(s); - r = log_oom(); - goto finish; - } - } - - r = 0; - while (!hashmap_isempty(pids)) { - siginfo_t si = {}; - char *s; - - if (waitid(P_ALL, 0, &si, WEXITED) < 0) { - - if (errno == EINTR) - continue; - - r = log_error_errno(errno, "waitid() failed: %m"); - goto finish; - } - - s = hashmap_remove(pids, PID_TO_PTR(si.si_pid)); - if (s) { - if (!is_clean_exit(si.si_code, si.si_status, NULL)) { - if (si.si_code == CLD_EXITED) - log_error(MOUNT_PATH " for %s exited with exit status %i.", s, si.si_status); - else - log_error(MOUNT_PATH " for %s terminated by signal %s.", s, signal_to_string(si.si_status)); - - r = -ENOEXEC; - } - - free(s); - } - } - -finish: - return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; -} |