diff options
Diffstat (limited to 'sys/sys/disklabel.h')
| -rw-r--r-- | sys/sys/disklabel.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/sys/sys/disklabel.h b/sys/sys/disklabel.h index a25ee29..60b8f8f 100644 --- a/sys/sys/disklabel.h +++ b/sys/sys/disklabel.h @@ -164,6 +164,8 @@ struct disklabel { #define p_sgs __partition_u1.sgs } d_partitions[MAXPARTITIONS]; /* actually may be more */ }; +struct cpu_disklabel { +}; #else /* LOCORE */ /* * offsets for asm boot files. @@ -188,6 +190,11 @@ struct disklabel { #define DTYPE_HPFL 8 /* HP Fiber-link */ #define DTYPE_FLOPPY 10 /* floppy */ +/* d_subtype values: */ +#define DSTYPE_INDOSPART 0x8 /* is inside dos partition */ +#define DSTYPE_DOSPART(s) ((s) & 3) /* dos partition number */ +#define DSTYPE_GEOMETRY 0x10 /* drive params in label */ + #ifdef DKTYPENAMES static char *dktypenames[] = { "unknown", @@ -300,6 +307,31 @@ struct partinfo { struct partition *part; }; +/* DOS partition table -- located in boot block */ + +#define DOSBBSECTOR 0 /* DOS boot block relative sector number */ +#define DOSPARTOFF 446 +#define NDOSPART 4 + +struct dos_partition { + unsigned char dp_flag; /* bootstrap flags */ + unsigned char dp_shd; /* starting head */ + unsigned char dp_ssect; /* starting sector */ + unsigned char dp_scyl; /* starting cylinder */ + unsigned char dp_typ; /* partition type */ +#define DOSPTYP_386BSD 0xa5 /* 386BSD partition type */ + unsigned char dp_ehd; /* end head */ + unsigned char dp_esect; /* end sector */ + unsigned char dp_ecyl; /* end cylinder */ + unsigned long dp_start; /* absolute starting sector number */ + unsigned long dp_size; /* partition size in sectors */ +}; + +extern struct dos_partition dos_partitions[NDOSPART]; + +#define DPSECT(s) ((s) & 0x3f) /* isolate relevant bits of sector */ +#define DPCYL(c, s) ((c) + (((s) & 0xc0)<<2)) /* and those that are cylinder */ + /* * Disk-specific ioctls. */ |
