src/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 General Public License as published by
  13   the Free Software Foundation; either version 2 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   General Public License for more details.
  20
  21   You should have received a copy of the GNU 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_etc_fstab;
  79         MountParameters parameters_proc_self_mountinfo;
  80         MountParameters parameters_fragment;
  81
  82         bool from_etc_fstab:1;
  83         bool from_proc_self_mountinfo:1;
  84         bool from_fragment:1;
  85
  86         /* Used while looking for mount points that vanished or got
  87          * added from/to /proc/self/mountinfo */
  88         bool is_mounted:1;
  89         bool just_mounted:1;
  90         bool just_changed:1;
  91
  92         MountResult result;
  93         MountResult reload_result;
  94
  95         mode_t directory_mode;
  96
  97         usec_t timeout_usec;
  98
  99         ExecCommand exec_command[_MOUNT_EXEC_COMMAND_MAX];
 100         ExecContext exec_context;
 101
 102         MountState state, deserialized_state;
 103
 104         ExecCommand* control_command;
 105         MountExecCommand control_command_id;
 106         pid_t control_pid;
 107
 108         Watch timer_watch;
 109 };
 110
 111 extern const UnitVTable mount_vtable;
 112
 113 void mount_fd_event(Manager *m, int events);
 114
 115 const char* mount_state_to_string(MountState i);
 116 MountState mount_state_from_string(const char *s);
 117
 118 const char* mount_exec_command_to_string(MountExecCommand i);
 119 MountExecCommand mount_exec_command_from_string(const char *s);
 120
 121 const char* mount_result_to_string(MountResult i);
 122 MountResult mount_result_from_string(const char *s);
 123
 124 #endif