ceph/src/spdk/lib/bdev/gpt/gpt.h

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright (c) Intel Corporation.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
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  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 /** \file
  35  * GPT internal Interface
  36  */
  37
  38 #ifndef SPDK_INTERNAL_GPT_H
  39 #define SPDK_INTERNAL_GPT_H
  40
  41 #include "spdk/stdinc.h"
  42
  43 #include "spdk/gpt_spec.h"
  44
  45 #define SPDK_GPT_PART_TYPE_GUID SPDK_GPT_GUID(0x7c5222bd, 0x8f5d, 0x4087, 0x9c00, 0xbf9843c7b58c)
  46 #define SPDK_GPT_BUFFER_SIZE 32768  /* 32KB */
  47 #define SPDK_GPT_GUID_EQUAL(x,y) (memcmp(x, y, sizeof(struct spdk_gpt_guid)) == 0)
  48
  49 enum spdk_gpt_parse_phase {
  50         SPDK_GPT_PARSE_PHASE_INVALID = 0,
  51         SPDK_GPT_PARSE_PHASE_PRIMARY,
  52         SPDK_GPT_PARSE_PHASE_SECONDARY,
  53 };
  54
  55 struct spdk_gpt {
  56         uint8_t parse_phase;
  57         unsigned char *buf;
  58         uint64_t buf_size;
  59         uint64_t lba_start;
  60         uint64_t lba_end;
  61         uint64_t total_sectors;
  62         uint32_t sector_size;
  63         struct spdk_gpt_header *header;
  64         struct spdk_gpt_partition_entry *partitions;
  65 };
  66
  67 int spdk_gpt_parse_mbr(struct spdk_gpt *gpt);
  68 int spdk_gpt_parse_partition_table(struct spdk_gpt *gpt);
  69
  70 #endif  /* SPDK_INTERNAL_GPT_H */