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_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