| /* Copyright (c) 2008, XenSource Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * * Neither the name of XenSource Inc. nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER |
| * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #ifndef _VHD_JOURNAL_H_ |
| #define _VHD_JOURNAL_H_ |
| |
| #include <inttypes.h> |
| |
| #include "libvhd.h" |
| |
| #define VHD_JOURNAL_METADATA 0x01 |
| #define VHD_JOURNAL_DATA 0x02 |
| |
| #define VHD_JOURNAL_HEADER_COOKIE "vjournal" |
| #define VHD_JOURNAL_ENTRY_COOKIE 0xaaaa12344321aaaa |
| |
| typedef struct vhd_journal_header { |
| char cookie[8]; |
| blk_uuid_t uuid; |
| uint64_t vhd_footer_offset; |
| uint32_t journal_data_entries; |
| uint32_t journal_metadata_entries; |
| uint64_t journal_data_offset; |
| uint64_t journal_metadata_offset; |
| uint64_t journal_eof; |
| char pad[448]; |
| } vhd_journal_header_t; |
| |
| typedef struct vhd_journal { |
| char *jname; |
| int jfd; |
| int is_block; /* is jfd a block device */ |
| vhd_journal_header_t header; |
| vhd_context_t vhd; |
| } vhd_journal_t; |
| |
| int vhd_journal_create(vhd_journal_t *, const char *file, const char *jfile); |
| int vhd_journal_open(vhd_journal_t *, const char *file, const char *jfile); |
| int vhd_journal_add_block(vhd_journal_t *, uint32_t block, char mode); |
| int vhd_journal_commit(vhd_journal_t *); |
| int vhd_journal_revert(vhd_journal_t *); |
| int vhd_journal_close(vhd_journal_t *); |
| int vhd_journal_remove(vhd_journal_t *); |
| |
| #endif |
