external/gpl2/lvm2/dist/lib/format_text/import-export.h

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
   5  * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
   6  *
   7  * This file is part of LVM2.
   8  *
   9  * This copyrighted material is made available to anyone wishing to use,
  10  * modify, copy, or redistribute it subject to the terms and conditions
  11  * of the GNU Lesser General Public License v.2.1.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public License
  14  * along with this program; if not, write to the Free Software Foundation,
  15  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  16  */
  17
  18 #ifndef _LVM_TEXT_IMPORT_EXPORT_H
  19 #define _LVM_TEXT_IMPORT_EXPORT_H
  20
  21 #include "config.h"
  22 #include "lvm-types.h"
  23 #include "metadata.h"
  24
  25 #include <stdio.h>
  26
  27 /*
  28  * Constants to identify files this code can parse.
  29  */
  30 #define CONTENTS_FIELD "contents"
  31 #define CONTENTS_VALUE "Text Format Volume Group"
  32
  33 #define FORMAT_VERSION_FIELD "version"
  34 #define FORMAT_VERSION_VALUE 1
  35
  36 /*
  37  * VGs, PVs and LVs all have status bitsets, we gather together
  38  * common code for reading and writing them.
  39  */
  40 enum {
  41         COMPATIBLE_FLAG = 0x0,
  42         VG_FLAGS,
  43         PV_FLAGS,
  44         LV_FLAGS,
  45         STATUS_FLAG = 0x8,
  46 };
  47
  48 struct text_vg_version_ops {
  49         int (*check_version) (struct config_tree * cf);
  50         struct volume_group *(*read_vg) (struct format_instance * fid,
  51                                          struct config_tree * cf);
  52         void (*read_desc) (struct dm_pool * mem, struct config_tree * cf,
  53                            time_t *when, char **desc);
  54         const char *(*read_vgname) (const struct format_type *fmt,
  55                                     struct config_tree *cft,
  56                                     struct id *vgid, uint32_t *vgstatus,
  57                                     char **creation_host);
  58 };
  59
  60 struct text_vg_version_ops *text_vg_vsn1_init(void);
  61
  62 int print_flags(uint32_t status, int type, char *buffer, size_t size);
  63 int read_flags(uint32_t *status, int type, struct config_value *cv);
  64
  65 int print_tags(struct dm_list *tags, char *buffer, size_t size);
  66 int read_tags(struct dm_pool *mem, struct dm_list *tags, struct config_value *cv);
  67
  68 int text_vg_export_file(struct volume_group *vg, const char *desc, FILE *fp);
  69 int text_vg_export_raw(struct volume_group *vg, const char *desc, char **buf);
  70 struct volume_group *text_vg_import_file(struct format_instance *fid,
  71                                          const char *file,
  72                                          time_t *when, char **desc);
  73 struct volume_group *text_vg_import_fd(struct format_instance *fid,
  74                                        const char *file,
  75                                        struct device *dev,
  76                                        off_t offset, uint32_t size,
  77                                        off_t offset2, uint32_t size2,
  78                                        checksum_fn_t checksum_fn,
  79                                        uint32_t checksum,
  80                                        time_t *when, char **desc);
  81 const char *text_vgname_import(const struct format_type *fmt,
  82                                struct device *dev,
  83                                off_t offset, uint32_t size,
  84                                off_t offset2, uint32_t size2,
  85                                checksum_fn_t checksum_fn, uint32_t checksum,
  86                                struct id *vgid, uint32_t *vgstatus,
  87                                char **creation_host);
  88
  89 #endif