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29 * @(#)disklabel.h 8.2 (Berkeley) 7/10/94
33 #ifndef _SYS_DISKMBR_H_
34 #define _SYS_DISKMBR_H_
36 #include <sys/ioccom.h>
38 #define DOSBBSECTOR 0 /* DOS boot block relative sector number */
39 #define DOSDSNOFF 440 /* WinNT/2K/XP Drive Serial Number offset */
40 #define DOSPARTOFF 446
41 #define DOSPARTSIZE 16
43 #define NEXTDOSPART 32
44 #define DOSMAGICOFFSET 510
45 #define DOSMAGIC 0xAA55
47 #define DOSPTYP_EXT 0x05 /* DOS extended partition */
48 #define DOSPTYP_NTFS 0x07 /* NTFS partition */
49 #define DOSPTYP_FAT32 0x0b /* FAT32 partition */
50 #define DOSPTYP_EXTLBA 0x0f /* DOS extended partition */
51 #define DOSPTYP_PPCBOOT 0x41 /* PReP/CHRP boot partition */
52 #define DOSPTYP_LDM 0x42 /* Win2k dynamic extended partition */
53 #define DOSPTYP_386BSD 0xa5 /* 386BSD partition type */
54 #define DOSPTYP_HFS 0xaf /* HFS/HFS+ partition type */
55 #define DOSPTYP_LINSWP 0x82 /* Linux swap partition */
56 #define DOSPTYP_LINUX 0x83 /* Linux partition */
57 #define DOSPTYP_LINLVM 0x8e /* Linux LVM partition */
58 #define DOSPTYP_PMBR 0xee /* GPT Protective MBR */
59 #define DOSPTYP_VMFS 0xfb /* VMware VMFS partition */
60 #define DOSPTYP_VMKDIAG 0xfc /* VMware vmkDiagnostic partition */
61 #define DOSPTYP_LINRAID 0xfd /* Linux raid partition */
63 struct dos_partition {
64 unsigned char dp_flag; /* bootstrap flags */
65 unsigned char dp_shd; /* starting head */
66 unsigned char dp_ssect; /* starting sector */
67 unsigned char dp_scyl; /* starting cylinder */
68 unsigned char dp_typ; /* partition type */
69 unsigned char dp_ehd; /* end head */
70 unsigned char dp_esect; /* end sector */
71 unsigned char dp_ecyl; /* end cylinder */
72 u_int32_t dp_start; /* absolute starting sector number */
73 u_int32_t dp_size; /* partition size in sectors */
76 CTASSERT(sizeof (struct dos_partition) == DOSPARTSIZE);
79 void dos_partition_dec(void const *pp, struct dos_partition *d);
80 void dos_partition_enc(void *pp, struct dos_partition *d);
82 #define DPSECT(s) ((s) & 0x3f) /* isolate relevant bits of sector */
83 #define DPCYL(c, s) ((c) + (((s) & 0xc0)<<2)) /* and those that are cylinder */
85 #define DIOCSMBR _IOW('M', 129, u_char[512])
87 #endif /* !_SYS_DISKMBR_H_ */