src/libcaptive/client/vfs.c

   1 /* $Id$
   2  * captive vfs 'vfs' interface to reactos
   3  * Copyright (C) 2002-2003 Jan Kratochvil <project-captive@jankratochvil.net>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; exactly version 2 of June 1991 is required
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19
  20 #include "config.h"
  21
  22 #include "captive/client-vfs.h" /* self */
  23 #include "vfs.h"        /* self-priv */
  24 #include <glib/gmessages.h>
  25 #include "captive/macros.h"
  26 #include "init.h"
  27 #include "captive/parent-Vfs.h"
  28 #include "../sandbox/server-Vfs.h"      /* for captive_corba_child_options */
  29 #include "giochannel-blind.h"   /* for captive_giochannel_setup() */
  30 #include "directory.h"
  31 #include "reactos/ddk/iotypes.h"
  32 #include "captive/client-directory.h"
  33 #include "reactos/ntos/zw.h"    /* for NtQueryVolumeInformationFile() */
  34 #include "result.h"
  35 #include "init.h"
  36
  37
  38 static gpointer captive_vfs_object_parent_class=NULL;
  39
  40
  41 static GnomeVFSResult captive_vfs_close(CaptiveVfsObject *captive_vfs_object);
  42
  43 static void captive_vfs_object_finalize(CaptiveVfsObject *captive_vfs_object)
  44 {
  45         g_return_if_fail(captive_vfs_object!=NULL);
  46
  47         captive_vfs_close(captive_vfs_object);  /* errors ignored */
  48
  49         G_OBJECT_CLASS(captive_vfs_object_parent_class)->finalize((GObject *)captive_vfs_object);
  50 }
  51
  52
  53 static void captive_vfs_object_class_init(CaptiveVfsObjectClass *class)
  54 {
  55 GObjectClass *gobject_class=G_OBJECT_CLASS(class);
  56
  57         captive_vfs_object_parent_class=g_type_class_ref(G_TYPE_OBJECT);
  58         gobject_class->finalize=(void (*)(GObject *object))captive_vfs_object_finalize;
  59 }
  60
  61
  62 static void captive_vfs_object_init(CaptiveVfsObject *captive_vfs_object)
  63 {
  64         CAPTIVE_MEMZERO(&captive_vfs_object->options);
  65
  66         captive_vfs_object->corba_parent_giochanel_blind=NULL;
  67 }
  68
  69
  70 GType captive_vfs_object_get_type(void)
  71 {
  72 static GType captive_vfs_object_type=0;
  73
  74         if (!captive_vfs_object_type) {
  75 static const GTypeInfo captive_vfs_object_info={
  76                                 sizeof(CaptiveVfsObjectClass),
  77                                 NULL,   /* base_init */
  78                                 NULL,   /* base_finalize */
  79                                 (GClassInitFunc)captive_vfs_object_class_init,
  80                                 NULL,   /* class_finalize */
  81                                 NULL,   /* class_data */
  82                                 sizeof(CaptiveVfsObject),
  83                                 5,      /* n_preallocs */
  84                                 (GInstanceInitFunc)captive_vfs_object_init,
  85                                 };
  86
  87                 captive_vfs_object_type=g_type_register_static(G_TYPE_OBJECT,
  88                                 "CaptiveVfsObject",&captive_vfs_object_info,0);
  89                 }
  90
  91         return captive_vfs_object_type;
  92 }
  93
  94
  95 GnomeVFSResult captive_vfs_new
  96                 (CaptiveVfsObject **captive_vfs_object_return,const struct captive_options *options)
  97 {
  98 CaptiveVfsObject *captive_vfs_object;
  99 gboolean errbool;
 100
 101         g_return_val_if_fail(captive_vfs_object_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 102         g_return_val_if_fail(options!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 103
 104         /* Here is the first initializaton point of parent in sandboxed mode. */
 105         captive_log_init(options);
 106
 107         *captive_vfs_object_return=NULL;
 108
 109         captive_vfs_object=g_object_new(
 110                         CAPTIVE_VFS_TYPE_OBJECT,        /* object_type */
 111                         NULL);  /* first_property_name; FIXME: support properties */
 112
 113         captive_options_copy(&captive_vfs_object->options,options);
 114
 115         if (captive_vfs_object->options.image_iochannel)
 116                 captive_giochannel_setup(captive_vfs_object->options.image_iochannel);
 117
 118         *captive_vfs_object_return=captive_vfs_object;
 119
 120         /* We are sandboxing && we are the master */
 121         if (options->sandbox && (options->sandbox_server_argv || options->sandbox_server_ior))
 122                 return captive_sandbox_parent_vfs_new(captive_vfs_object);
 123
 124         g_assert(captive_options==NULL);
 125         captive_options=&captive_vfs_object->options;
 126
 127         errbool=captive_init();
 128         g_assert(errbool==TRUE);
 129
 130         return GNOME_VFS_OK;
 131 }
 132
 133
 134 static GnomeVFSResult captive_vfs_close(CaptiveVfsObject *captive_vfs_object)
 135 {
 136 gboolean errbool;
 137
 138         g_return_val_if_fail(captive_vfs_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 139
 140         if (captive_vfs_object->is_sandbox_parent)
 141                 return captive_sandbox_parent_vfs_close(captive_vfs_object);
 142
 143         g_assert(captive_options==&captive_vfs_object->options);
 144         errbool=captive_shutdown();
 145         g_assert(errbool==TRUE);
 146
 147         captive_options=NULL;
 148         captive_options_free(&captive_vfs_object->options);
 149
 150         return GNOME_VFS_OK;
 151 }
 152
 153
 154 GnomeVFSResult captive_vfs_commit(CaptiveVfsObject *captive_vfs_object)
 155 {
 156         g_return_val_if_fail(captive_vfs_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 157
 158         if (captive_vfs_object->is_sandbox_parent)
 159                 return captive_sandbox_parent_vfs_commit(captive_vfs_object);
 160
 161         /* We do not buffer any data if not in sandboxed mode. */
 162         return GNOME_VFS_OK;
 163 }
 164
 165
 166 GnomeVFSResult captive_vfs_volume_info_get(CaptiveVfsObject *captive_vfs_object,CaptiveVfsVolumeInfo *volume_info)
 167 {
 168 FILE_FS_FULL_SIZE_INFORMATION FileFsFullSizeInformation_local;
 169 NTSTATUS err;
 170 IO_STATUS_BLOCK volume_IoStatusBlock;
 171 GnomeVFSResult errvfsresult;
 172 CaptiveDirectoryObject *captive_directory_object;
 173
 174         g_return_val_if_fail(captive_vfs_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 175         g_return_val_if_fail(volume_info!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 176
 177         if (captive_vfs_object->is_sandbox_parent)
 178                 return captive_sandbox_parent_vfs_volume_info_get(captive_vfs_object,volume_info);
 179
 180         if (GNOME_VFS_OK!=(errvfsresult=captive_directory_new_open(&captive_directory_object,captive_vfs_object,"/")))
 181                 return errvfsresult;
 182
 183         err=NtQueryVolumeInformationFile(
 184                         captive_directory_object->dir_Handle,   /* FileHandle */
 185                         &volume_IoStatusBlock,  /* IoStatusBlock */
 186                         &FileFsFullSizeInformation_local,       /* FsInformation */
 187                         sizeof(FileFsFullSizeInformation_local),        /* Length */
 188                         FileFsFullSizeInformation);     /* FsInformationClass */
 189         if (NT_SUCCESS(err)!=NT_SUCCESS(volume_IoStatusBlock.Status)) {
 190                 g_assert_not_reached();
 191                 goto err_unref_captive_directory_object;
 192                 }
 193         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 194                 goto err_unref_captive_directory_object;
 195
 196         g_object_unref(captive_directory_object);
 197
 198         volume_info->block_size=FileFsFullSizeInformation_local.BytesPerSector
 199                         *FileFsFullSizeInformation_local.SectorsPerAllocationUnit;
 200         volume_info->bytes          =FileFsFullSizeInformation_local.TotalAllocationUnits.QuadPart          *volume_info->block_size;
 201         volume_info->bytes_free     =FileFsFullSizeInformation_local.ActualAvailableAllocationUnits.QuadPart*volume_info->block_size;
 202         volume_info->bytes_available=FileFsFullSizeInformation_local.CallerAvailableAllocationUnits.QuadPart*volume_info->block_size;
 203
 204         return GNOME_VFS_OK;
 205
 206 err_unref_captive_directory_object:
 207         g_object_unref(captive_directory_object);
 208         return errvfsresult;
 209 }