Branch data     Line data    Source code

       1                 :            : /* SPDX-License-Identifier: LGPL-2.1+ */
       2                 :            : 
       3                 :            : #include <sys/stat.h>
       4                 :            : 
       5                 :            : #include "fileio-label.h"
       6                 :            : #include "fileio.h"
       7                 :            : #include "selinux-util.h"
       8                 :            : 
       9                 :          0 : int write_string_file_atomic_label_ts(const char *fn, const char *line, struct timespec *ts) {
      10                 :            :         int r;
      11                 :            : 
      12                 :          0 :         r = mac_selinux_create_file_prepare(fn, S_IFREG);
      13         [ #  # ]:          0 :         if (r < 0)
      14                 :          0 :                 return r;
      15                 :            : 
      16                 :          0 :         r = write_string_file_ts(fn, line, WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_ATOMIC, ts);
      17                 :            : 
      18                 :          0 :         mac_selinux_create_file_clear();
      19                 :            : 
      20                 :          0 :         return r;
      21                 :            : }
      22                 :            : 
      23                 :          0 : int create_shutdown_run_nologin_or_warn(void) {
      24                 :            :         int r;
      25                 :            : 
      26                 :            :         /* This is used twice: once in systemd-user-sessions.service, in order to block logins when we actually go
      27                 :            :          * down, and once in systemd-logind.service when shutdowns are scheduled, and logins are to be turned off a bit
      28                 :            :          * in advance. We use the same wording of the message in both cases. */
      29                 :            : 
      30                 :          0 :         r = write_string_file_atomic_label("/run/nologin",
      31                 :            :                                            "System is going down. Unprivileged users are not permitted to log in anymore. "
      32                 :            :                                            "For technical details, see pam_nologin(8).");
      33         [ #  # ]:          0 :         if (r < 0)
      34         [ #  # ]:          0 :                 return log_error_errno(r, "Failed to create /run/nologin: %m");
      35                 :            : 
      36                 :          0 :         return 0;
      37                 :            : }