src/core/mount.h

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 #ifndef foomounthfoo
   4 #define foomounthfoo
   5
   6 /***
   7   This file is part of systemd.
   8
   9   Copyright 2010 Lennart Poettering
  10
  11   systemd is free software; you can redistribute it and/or modify it
  12   under the terms of the GNU Lesser General Public License as published by
  13   the Free Software Foundation; either version 2.1 of the License, or
  14   (at your option) any later version.
  15
  16   systemd is distributed in the hope that it will be useful, but
  17   WITHOUT ANY WARRANTY; without even the implied warranty of
  18   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  19   Lesser General Public License for more details.
  20
  21   You should have received a copy of the GNU Lesser General Public License
  22   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  23 ***/
  24
  25 typedef struct Mount Mount;
  26
  27 #include "unit.h"
  28
  29 typedef enum MountState {
  30         MOUNT_DEAD,
  31         MOUNT_MOUNTING,               /* /bin/mount is running, but the mount is not done yet. */
  32         MOUNT_MOUNTING_DONE,          /* /bin/mount is running, and the mount is done. */
  33         MOUNT_MOUNTED,
  34         MOUNT_REMOUNTING,
  35         MOUNT_UNMOUNTING,
  36         MOUNT_MOUNTING_SIGTERM,
  37         MOUNT_MOUNTING_SIGKILL,
  38         MOUNT_REMOUNTING_SIGTERM,
  39         MOUNT_REMOUNTING_SIGKILL,
  40         MOUNT_UNMOUNTING_SIGTERM,
  41         MOUNT_UNMOUNTING_SIGKILL,
  42         MOUNT_FAILED,
  43         _MOUNT_STATE_MAX,
  44         _MOUNT_STATE_INVALID = -1
  45 } MountState;
  46
  47 typedef enum MountExecCommand {
  48         MOUNT_EXEC_MOUNT,
  49         MOUNT_EXEC_UNMOUNT,
  50         MOUNT_EXEC_REMOUNT,
  51         _MOUNT_EXEC_COMMAND_MAX,
  52         _MOUNT_EXEC_COMMAND_INVALID = -1
  53 } MountExecCommand;
  54
  55 typedef struct MountParameters {
  56         char *what;
  57         char *options;
  58         char *fstype;
  59         int passno;
  60 } MountParameters;
  61
  62 typedef enum MountResult {
  63         MOUNT_SUCCESS,
  64         MOUNT_FAILURE_RESOURCES,
  65         MOUNT_FAILURE_TIMEOUT,
  66         MOUNT_FAILURE_EXIT_CODE,
  67         MOUNT_FAILURE_SIGNAL,
  68         MOUNT_FAILURE_CORE_DUMP,
  69         _MOUNT_RESULT_MAX,
  70         _MOUNT_RESULT_INVALID = -1
  71 } MountResult;
  72
  73 struct Mount {
  74         Unit meta;
  75
  76         char *where;
  77
  78         MountParameters parameters_proc_self_mountinfo;
  79         MountParameters parameters_fragment;
  80
  81         bool from_proc_self_mountinfo:1;
  82         bool from_fragment:1;
  83
  84         /* Used while looking for mount points that vanished or got
  85          * added from/to /proc/self/mountinfo */
  86         bool is_mounted:1;
  87         bool just_mounted:1;
  88         bool just_changed:1;
  89
  90         MountResult result;
  91         MountResult reload_result;
  92
  93         mode_t directory_mode;
  94
  95         usec_t timeout_usec;
  96
  97         ExecCommand exec_command[_MOUNT_EXEC_COMMAND_MAX];
  98         ExecContext exec_context;
  99
 100         MountState state, deserialized_state;
 101
 102         ExecCommand* control_command;
 103         MountExecCommand control_command_id;
 104         pid_t control_pid;
 105
 106         Watch timer_watch;
 107 };
 108
 109 extern const UnitVTable mount_vtable;
 110
 111 void mount_fd_event(Manager *m, int events);
 112
 113 const char* mount_state_to_string(MountState i);
 114 MountState mount_state_from_string(const char *s);
 115
 116 const char* mount_exec_command_to_string(MountExecCommand i);
 117 MountExecCommand mount_exec_command_from_string(const char *s);
 118
 119 const char* mount_result_to_string(MountResult i);
 120 MountResult mount_result_from_string(const char *s);
 121
 122 #endif