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-rw-r--r--block/partitions/mac.h44
1 files changed, 44 insertions, 0 deletions
diff --git a/block/partitions/mac.h b/block/partitions/mac.h
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+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * fs/partitions/mac.h
+ */
+
+#define MAC_PARTITION_MAGIC 0x504d
+
+/* type field value for A/UX or other Unix partitions */
+#define APPLE_AUX_TYPE "Apple_UNIX_SVR2"
+
+struct mac_partition {
+ __be16 signature; /* expected to be MAC_PARTITION_MAGIC */
+ __be16 res1;
+ __be32 map_count; /* # blocks in partition map */
+ __be32 start_block; /* absolute starting block # of partition */
+ __be32 block_count; /* number of blocks in partition */
+ char name[32]; /* partition name */
+ char type[32]; /* string type description */
+ __be32 data_start; /* rel block # of first data block */
+ __be32 data_count; /* number of data blocks */
+ __be32 status; /* partition status bits */
+ __be32 boot_start;
+ __be32 boot_size;
+ __be32 boot_load;
+ __be32 boot_load2;
+ __be32 boot_entry;
+ __be32 boot_entry2;
+ __be32 boot_cksum;
+ char processor[16]; /* identifies ISA of boot */
+ /* there is more stuff after this that we don't need */
+};
+
+#define MAC_STATUS_BOOTABLE 8 /* partition is bootable */
+
+#define MAC_DRIVER_MAGIC 0x4552
+
+/* Driver descriptor structure, in block 0 */
+struct mac_driver_desc {
+ __be16 signature; /* expected to be MAC_DRIVER_MAGIC */
+ __be16 block_size;
+ __be32 block_count;
+ /* ... more stuff */
+};
+