mount.h

   1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
   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_MAINTAINANCE,
  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 } MountParameters;
  60
  61 struct Mount {
  62         Meta meta;
  63
  64         char *where;
  65
  66         MountParameters parameters_etc_fstab;
  67         MountParameters parameters_proc_self_mountinfo;
  68         MountParameters parameters_fragment;
  69
  70         bool from_etc_fstab:1;
  71         bool from_proc_self_mountinfo:1;
  72         bool from_fragment:1;
  73
  74         /* Used while looking for mount points that vanished or got
  75          * added from/to /proc/self/mountinfo */
  76         bool is_mounted:1;
  77         bool just_mounted:1;
  78         bool just_changed:1;
  79
  80         bool failure:1;
  81
  82         usec_t timeout_usec;
  83
  84         ExecCommand exec_command[_MOUNT_EXEC_COMMAND_MAX];
  85         ExecContext exec_context;
  86
  87         MountState state, deserialized_state;
  88
  89         KillMode kill_mode;
  90
  91         ExecCommand* control_command;
  92         MountExecCommand control_command_id;
  93         pid_t control_pid;
  94
  95         Watch timer_watch;
  96 };
  97
  98 extern const UnitVTable mount_vtable;
  99
 100 void mount_fd_event(Manager *m, int events);
 101
 102 int mount_path_is_mounted(Manager *m, const char* path);
 103 int mount_add_node_links(Unit *m, const char *what);
 104 int mount_add_path_links(Unit *m, const char *where, bool requires);
 105
 106 const char* mount_state_to_string(MountState i);
 107 MountState mount_state_from_string(const char *s);
 108
 109 const char* mount_exec_command_to_string(MountExecCommand i);
 110 MountExecCommand mount_exec_command_from_string(const char *s);
 111
 112 #endif