block/partitions/mac.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 /*
0003  *  fs/partitions/mac.h
0004  */
0005
0006 #define MAC_PARTITION_MAGIC 0x504d
0007
0008 /* type field value for A/UX or other Unix partitions */
0009 #define APPLE_AUX_TYPE  "Apple_UNIX_SVR2"
0010
0011 struct mac_partition {
0012     __be16  signature;  /* expected to be MAC_PARTITION_MAGIC */
0013     __be16  res1;
0014     __be32  map_count;  /* # blocks in partition map */
0015     __be32  start_block;    /* absolute starting block # of partition */
0016     __be32  block_count;    /* number of blocks in partition */
0017     char    name[32];   /* partition name */
0018     char    type[32];   /* string type description */
0019     __be32  data_start; /* rel block # of first data block */
0020     __be32  data_count; /* number of data blocks */
0021     __be32  status;     /* partition status bits */
0022     __be32  boot_start;
0023     __be32  boot_size;
0024     __be32  boot_load;
0025     __be32  boot_load2;
0026     __be32  boot_entry;
0027     __be32  boot_entry2;
0028     __be32  boot_cksum;
0029     char    processor[16];  /* identifies ISA of boot */
0030     /* there is more stuff after this that we don't need */
0031 };
0032
0033 #define MAC_STATUS_BOOTABLE 8   /* partition is bootable */
0034
0035 #define MAC_DRIVER_MAGIC    0x4552
0036
0037 /* Driver descriptor structure, in block 0 */
0038 struct mac_driver_desc {
0039     __be16  signature;  /* expected to be MAC_DRIVER_MAGIC */
0040     __be16  block_size;
0041     __be32  block_count;
0042     /* ... more stuff */
0043 };
0044