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/*
fdisk.h
*/
#include "c.h"
#define DEFAULT_SECTOR_SIZE 512
#define MAX_SECTOR_SIZE 2048
#define SECTOR_SIZE 512 /* still used in BSD code */
#define MAXIMUM_PARTS 60
#define ACTIVE_FLAG 0x80
#define EXTENDED 0x05
#define WIN98_EXTENDED 0x0f
#define LINUX_PARTITION 0x81
#define LINUX_SWAP 0x82
#define LINUX_NATIVE 0x83
#define LINUX_EXTENDED 0x85
#define LINUX_LVM 0x8e
#define LINUX_RAID 0xfd
#define ALIGN_UP 1
#define ALIGN_DOWN 2
#define ALIGN_NEAREST 3
#define LINE_LENGTH 800
#define IS_EXTENDED(i) \
((i) == EXTENDED || (i) == WIN98_EXTENDED || (i) == LINUX_EXTENDED)
#define cround(n) (display_in_cyl_units ? ((n)/units_per_sector)+1 : (n))
#define scround(x) (((x)+units_per_sector-1)/units_per_sector)
struct partition {
unsigned char boot_ind; /* 0x80 - active */
unsigned char head; /* starting head */
unsigned char sector; /* starting sector */
unsigned char cyl; /* starting cylinder */
unsigned char sys_ind; /* What partition type */
unsigned char end_head; /* end head */
unsigned char end_sector; /* end sector */
unsigned char end_cyl; /* end cylinder */
unsigned char start4[4]; /* starting sector counting from 0 */
unsigned char size4[4]; /* nr of sectors in partition */
} __attribute__ ((packed));
enum menutype {
MAIN_MENU,
EXPERT_MENU,
};
enum failure {
ioctl_error,
unable_to_read,
unable_to_seek,
unable_to_write
};
struct geom {
unsigned int heads;
unsigned int sectors;
unsigned int cylinders;
};
/* prototypes for fdisk.c */
extern char *disk_device, *line_ptr;
extern int fd, partitions;
extern unsigned int display_in_cyl_units, units_per_sector;
extern void change_units(void);
extern void fatal(enum failure why);
extern void get_geometry(int fd, struct geom *);
extern int get_partition(int warn, int max);
extern void list_types(struct systypes *sys);
extern int read_line (int *asked);
extern char read_char(char *mesg);
extern int read_hex(struct systypes *sys);
extern void reread_partition_table(int leave);
extern struct partition *get_part_table(int);
extern int valid_part_table_flag(unsigned char *b);
extern unsigned int read_int(unsigned int low, unsigned int dflt,
unsigned int high, unsigned int base, char *mesg);
extern void print_menu(enum menutype);
extern void print_partition_size(int num, unsigned long long start, unsigned long long stop, int sysid);
extern void zeroize_mbr_buffer(void);
extern void fill_bounds(unsigned long long *first, unsigned long long *last);
extern unsigned int heads, cylinders, sector_size;
extern unsigned long long sectors;
extern char *partition_type(unsigned char type);
extern void update_units(void);
extern char read_chars(char *mesg);
extern void set_changed(int);
extern void set_all_unchanged(void);
extern int warn_geometry(void);
extern void warn_limits(void);
extern void warn_alignment(void);
extern unsigned int read_int_with_suffix(unsigned int low, unsigned int dflt, unsigned int high,
unsigned int base, char *mesg, int *is_suffix_used);
extern unsigned long long align_lba(unsigned long long lba, int direction);
extern int get_partition_dflt(int warn, int max, int dflt);
#define PLURAL 0
#define SINGULAR 1
extern const char * str_units(int);
extern unsigned long long get_nr_sects(struct partition *p);
enum labeltype {
DOS_LABEL = 1,
SUN_LABEL = 2,
SGI_LABEL = 4,
AIX_LABEL = 8,
OSF_LABEL = 16,
MAC_LABEL = 32,
ANY_LABEL = -1
};
extern enum labeltype disklabel;
/*
* Raw disk label. For DOS-type partition tables the MBR,
* with descriptions of the primary partitions.
*/
extern unsigned char *MBRbuffer;
extern int MBRbuffer_changed;
extern unsigned long long total_number_of_sectors;
extern unsigned long grain;
/* start_sect and nr_sects are stored little endian on all machines */
/* moreover, they are not aligned correctly */
static inline void
store4_little_endian(unsigned char *cp, unsigned int val) {
cp[0] = (val & 0xff);
cp[1] = ((val >> 8) & 0xff);
cp[2] = ((val >> 16) & 0xff);
cp[3] = ((val >> 24) & 0xff);
}
static inline unsigned int read4_little_endian(const unsigned char *cp)
{
return (unsigned int)(cp[0]) + ((unsigned int)(cp[1]) << 8)
+ ((unsigned int)(cp[2]) << 16)
+ ((unsigned int)(cp[3]) << 24);
}
static inline void set_nr_sects(struct partition *p, unsigned long long nr_sects)
{
store4_little_endian(p->size4, nr_sects);
}
static inline void set_start_sect(struct partition *p, unsigned int start_sect)
{
store4_little_endian(p->start4, start_sect);
}
static inline void seek_sector(int fd, unsigned long long secno)
{
off_t offset = (off_t) secno * sector_size;
if (lseek(fd, offset, SEEK_SET) == (off_t) -1)
fatal(unable_to_seek);
}
static inline void read_sector(int fd, unsigned long long secno, unsigned char *buf)
{
seek_sector(fd, secno);
if (read(fd, buf, sector_size) != sector_size)
fatal(unable_to_read);
}
static inline void write_sector(int fd, unsigned long long secno, unsigned char *buf)
{
seek_sector(fd, secno);
if (write(fd, buf, sector_size) != sector_size)
fatal(unable_to_write);
}
static inline unsigned long long get_start_sect(struct partition *p)
{
return read4_little_endian(p->start4);
}
static inline int is_cleared_partition(struct partition *p)
{
return !(!p || p->boot_ind || p->head || p->sector || p->cyl ||
p->sys_ind || p->end_head || p->end_sector || p->end_cyl ||
get_start_sect(p) || get_nr_sects(p));
}
/* prototypes for fdiskbsdlabel.c */
extern void bsd_command_prompt(void);
extern int check_osf_label(void);
extern int btrydev(char * dev);
extern void xbsd_print_disklabel(int);
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