automount.c

   1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
   2
   3 /***
   4   This file is part of systemd.
   5
   6   Copyright 2010 Lennart Poettering
   7
   8   systemd is free software; you can redistribute it and/or modify it
   9   under the terms of the GNU General Public License as published by
  10   the Free Software Foundation; either version 2 of the License, or
  11   (at your option) any later version.
  12
  13   systemd is distributed in the hope that it will be useful, but
  14   WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16   General Public License for more details.
  17
  18   You should have received a copy of the GNU General Public License
  19   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  20 ***/
  21
  22 #include <errno.h>
  23
  24 #include "unit.h"
  25 #include "automount.h"
  26 #include "load-fragment.h"
  27 #include "load-dropin.h"
  28
  29 static int automount_init(Unit *u) {
  30         int r;
  31         Automount *a = AUTOMOUNT(u);
  32
  33         assert(a);
  34
  35         exec_context_init(&a->exec_context);
  36
  37         /* Load a .automount file */
  38         if ((r = unit_load_fragment(u)) < 0)
  39                 return r;
  40
  41         /* Load drop-in directory data */
  42         if ((r = unit_load_dropin(u)) < 0)
  43                 return r;
  44
  45         return 0;
  46 }
  47
  48 static void automount_done(Unit *u) {
  49         Automount *d = AUTOMOUNT(u);
  50
  51         assert(d);
  52         free(d->path);
  53 }
  54
  55 static void automount_dump(Unit *u, FILE *f, const char *prefix) {
  56
  57         static const char* const state_table[_AUTOMOUNT_STATE_MAX] = {
  58                 [AUTOMOUNT_DEAD] = "dead",
  59                 [AUTOMOUNT_START_PRE] = "start-pre",
  60                 [AUTOMOUNT_START_POST] = "start-post",
  61                 [AUTOMOUNT_WAITING] = "waiting",
  62                 [AUTOMOUNT_RUNNING] = "running",
  63                 [AUTOMOUNT_STOP_PRE] = "stop-pre",
  64                 [AUTOMOUNT_STOP_POST] = "stop-post",
  65                 [AUTOMOUNT_MAINTAINANCE] = "maintainance"
  66         };
  67
  68         static const char* const command_table[_AUTOMOUNT_EXEC_MAX] = {
  69                 [AUTOMOUNT_EXEC_START_PRE] = "StartPre",
  70                 [AUTOMOUNT_EXEC_START_POST] = "StartPost",
  71                 [AUTOMOUNT_EXEC_STOP_PRE] = "StopPre",
  72                 [AUTOMOUNT_EXEC_STOP_POST] = "StopPost"
  73         };
  74
  75         AutomountExecCommand c;
  76         Automount *s = AUTOMOUNT(u);
  77
  78         assert(s);
  79
  80         fprintf(f,
  81                 "%sAutomount State: %s\n"
  82                 "%sPath: %s\n",
  83                 prefix, state_table[s->state],
  84                 prefix, s->path);
  85
  86         exec_context_dump(&s->exec_context, f, prefix);
  87
  88         for (c = 0; c < _AUTOMOUNT_EXEC_MAX; c++) {
  89                 ExecCommand *i;
  90
  91                 LIST_FOREACH(command, i, s->exec_command[c])
  92                         fprintf(f, "%s%s: %s\n", prefix, command_table[c], i->path);
  93         }
  94 }
  95
  96 static UnitActiveState automount_active_state(Unit *u) {
  97
  98         static const UnitActiveState table[_AUTOMOUNT_STATE_MAX] = {
  99                 [AUTOMOUNT_DEAD] = UNIT_INACTIVE,
 100                 [AUTOMOUNT_START_PRE] = UNIT_ACTIVATING,
 101                 [AUTOMOUNT_START_POST] = UNIT_ACTIVATING,
 102                 [AUTOMOUNT_WAITING] = UNIT_ACTIVE,
 103                 [AUTOMOUNT_RUNNING] = UNIT_ACTIVE,
 104                 [AUTOMOUNT_STOP_PRE] = UNIT_DEACTIVATING,
 105                 [AUTOMOUNT_STOP_POST] = UNIT_DEACTIVATING,
 106                 [AUTOMOUNT_MAINTAINANCE] = UNIT_INACTIVE,
 107         };
 108
 109         return table[AUTOMOUNT(u)->state];
 110 }
 111
 112 const UnitVTable automount_vtable = {
 113         .suffix = ".mount",
 114
 115         .init = automount_init,
 116         .done = automount_done,
 117
 118         .dump = automount_dump,
 119
 120         .active_state = automount_active_state
 121 };