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-rw-r--r--libblkid/include/pt-sgi.h110
1 files changed, 110 insertions, 0 deletions
diff --git a/libblkid/include/pt-sgi.h b/libblkid/include/pt-sgi.h
new file mode 100644
index 000000000..547b37a87
--- /dev/null
+++ b/libblkid/include/pt-sgi.h
@@ -0,0 +1,110 @@
+#ifndef UTIL_LINUX_PT_SUN_H
+#define UTIL_LINUX_PT_SUN_H
+
+#include <stdint.h>
+
+#define SGI_LABEL_MAGIC 0x0be5a941
+
+#define SGI_MAXPARTITIONS 16
+#define SGI_MAXVOLUMES 15
+
+/* partition types */
+enum {
+ SGI_TYPE_VOLHDR = 0x00,
+ SGI_TYPE_TRKREPL = 0x01,
+ SGI_TYPE_SECREPL = 0x02,
+ SGI_TYPE_SWAP = 0x03,
+ SGI_TYPE_BSD = 0x04,
+ SGI_TYPE_SYSV = 0x05,
+ SGI_TYPE_ENTIRE_DISK = 0x06,
+ SGI_TYPE_EFS = 0x07,
+ SGI_TYPE_LVOL = 0x08,
+ SGI_TYPE_RLVOL = 0x09,
+ SGI_TYPE_XFS = 0x0a,
+ SGI_TYPE_XFSLOG = 0x0b,
+ SGI_TYPE_XLV = 0x0c,
+ SGI_TYPE_XVM = 0x0d
+};
+
+struct sgi_device_parameter {
+ unsigned char skew;
+ unsigned char gap1;
+ unsigned char gap2;
+ unsigned char sparecyl;
+
+ uint16_t pcylcount;
+ uint16_t head_vol0;
+ uint16_t ntrks; /* tracks in cyl 0 or vol 0 */
+
+ unsigned char cmd_tag_queue_depth;
+ unsigned char unused0;
+
+ uint16_t unused1;
+ uint16_t nsect; /* sectors/tracks in cyl 0 or vol 0 */
+ uint16_t bytes;
+ uint16_t ilfact;
+ uint32_t flags; /* SGI_DEVPARAM_* controller flags */
+ uint32_t datarate;
+ uint32_t retries_on_error;
+ uint32_t ms_per_word;
+ uint16_t xylogics_gap1;
+ uint16_t xylogics_syncdelay;
+ uint16_t xylogics_readdelay;
+ uint16_t xylogics_gap2;
+ uint16_t xylogics_readgate;
+ uint16_t xylogics_writecont;
+} __attribute__((packed));
+
+enum {
+ SGI_DEVPARAM_SECTOR_SLIP = 0x01,
+ SGI_DEVPARAM_SECTOR_FWD = 0x02,
+ SGI_DEVPARAM_TRACK_FWD = 0x04,
+ SGI_DEVPARAM_TRACK_MULTIVOL = 0x08,
+ SGI_DEVPARAM_IGNORE_ERRORS = 0x10,
+ SGI_DEVPARAM_RESEEK = 0x20,
+ SGI_DEVPARAM_CMDTAGQ_ENABLE = 0x40
+};
+
+
+struct sgi_disklabel {
+ uint32_t magic; /* magic number */
+ uint16_t root_part_num; /* # root partition */
+ uint16_t swap_part_num; /* # swap partition */
+ unsigned char boot_file[16]; /* name of boot file */
+
+ struct sgi_device_parameter devparam; /* not used now */
+
+ struct sgi_volume {
+ unsigned char name[8]; /* name of volume */
+ uint32_t block_num; /* logical block number */
+ uint32_t num_bytes; /* how big, in bytes */
+ } __attribute__((packed)) volume[SGI_MAXVOLUMES];
+
+ struct sgi_partition {
+ uint32_t num_blocks; /* size in logical blocks */
+ uint32_t first_block; /* first logical block */
+ uint32_t type; /* type of this partition */
+ } __attribute__((packed)) partitions[SGI_MAXPARTITIONS];
+
+ /* checksum is the 32bit 2's complement sum of the disklabel */
+ uint32_t csum; /* disk label checksum */
+ uint32_t padding; /* padding */
+} __attribute__((packed));
+
+static inline uint32_t sgi_pt_checksum(struct sgi_disklabel *label)
+{
+ int i;
+ uint32_t *ptr = (uint32_t *) label;
+ uint32_t sum = 0;
+
+ i = sizeof(*label) / sizeof(*ptr);
+
+ while (i) {
+ i--;
+ sum -= be32_to_cpu(ptr[i]);
+ }
+
+ return sum;
+}
+
+#endif /* UTIL_LINUX_PT_SUN_H */