static void
xbsd_link_part(void)
{
int k, i;
struct partition *p;
k = get_partition(1, g_partitions);
if (!xbsd_check_new_partition(&i))
return;
p = get_part_table(k);
xbsd_dlabel.d_partitions[i].p_size = get_nr_sects(p);
xbsd_dlabel.d_partitions[i].p_offset = get_start_sect(p);
xbsd_dlabel.d_partitions[i].p_fstype = xbsd_translate_fstype(p->sys_ind);
}
static void
create_sgilabel(void)
{
struct hd_geometry geometry;
struct {
unsigned int start;
unsigned int nsect;
int sysid;
} old[4];
int i = 0;
long longsectors; /* the number of sectors on the device */
int res; /* the result from the ioctl */
int sec_fac; /* the sector factor */
sec_fac = sector_size / 512; /* determine the sector factor */
printf(msg_building_new_label, "SGI disklabel");
sgi_other_endian = (BYTE_ORDER == LITTLE_ENDIAN);
res = ioctl(fd, BLKGETSIZE, &longsectors);
if (!ioctl(fd, HDIO_GETGEO, &geometry)) {
heads = geometry.heads;
sectors = geometry.sectors;
if (res == 0) {
/* the get device size ioctl was successful */
cylinders = longsectors / (heads * sectors);
cylinders /= sec_fac;
} else {
/* otherwise print error and use truncated version */
cylinders = geometry.cylinders;
printf(
"Warning: BLKGETSIZE ioctl failed on %s. Using geometry cylinder value of %d.\n"
"This value may be truncated for devices > 33.8 GB.\n", disk_device, cylinders);
}
}
for (i = 0; i < 4; i++) {
old[i].sysid = 0;
if (valid_part_table_flag(MBRbuffer)) {
if (get_part_table(i)->sys_ind) {
old[i].sysid = get_part_table(i)->sys_ind;
old[i].start = get_start_sect(get_part_table(i));
old[i].nsect = get_nr_sects(get_part_table(i));
printf("Trying to keep parameters of partition %d\n", i);
if (debug)
printf("ID=%02x\tSTART=%d\tLENGTH=%d\n",
old[i].sysid, old[i].start, old[i].nsect);
}
}
}
memset(MBRbuffer, 0, sizeof(MBRbuffer));
/* fields with '//' are already zeroed out by memset above */
sgilabel->magic = SGI_SSWAP32(SGI_LABEL_MAGIC);
//sgilabel->boot_part = SGI_SSWAP16(0);
sgilabel->swap_part = SGI_SSWAP16(1);
//memset(sgilabel->boot_file, 0, 16);
strcpy((char*)sgilabel->boot_file, "/unix"); /* sizeof(sgilabel->boot_file) == 16 > 6 */
//sgilabel->devparam.skew = (0);
//sgilabel->devparam.gap1 = (0);
//sgilabel->devparam.gap2 = (0);
//sgilabel->devparam.sparecyl = (0);
sgilabel->devparam.pcylcount = SGI_SSWAP16(geometry.cylinders);
//sgilabel->devparam.head_vol0 = SGI_SSWAP16(0);
/* tracks/cylinder (heads) */
sgilabel->devparam.ntrks = SGI_SSWAP16(geometry.heads);
//sgilabel->devparam.cmd_tag_queue_depth = (0);
//sgilabel->devparam.unused0 = (0);
//sgilabel->devparam.unused1 = SGI_SSWAP16(0);
/* sectors/track */
sgilabel->devparam.nsect = SGI_SSWAP16(geometry.sectors);
sgilabel->devparam.bytes = SGI_SSWAP16(512);
sgilabel->devparam.ilfact = SGI_SSWAP16(1);
sgilabel->devparam.flags = SGI_SSWAP32(TRACK_FWD|
IGNORE_ERRORS|RESEEK);
//sgilabel->devparam.datarate = SGI_SSWAP32(0);
sgilabel->devparam.retries_on_error = SGI_SSWAP32(1);
//sgilabel->devparam.ms_per_word = SGI_SSWAP32(0);
//sgilabel->devparam.xylogics_gap1 = SGI_SSWAP16(0);
//sgilabel->devparam.xylogics_syncdelay = SGI_SSWAP16(0);
//sgilabel->devparam.xylogics_readdelay = SGI_SSWAP16(0);
//sgilabel->devparam.xylogics_gap2 = SGI_SSWAP16(0);
//sgilabel->devparam.xylogics_readgate = SGI_SSWAP16(0);
//sgilabel->devparam.xylogics_writecont = SGI_SSWAP16(0);
//memset( &(sgilabel->directory), 0, sizeof(struct volume_directory)*15 );
//memset( &(sgilabel->partitions), 0, sizeof(struct sgi_partinfo)*16 );
current_label_type = label_sgi;
partitions = 16;
sgi_volumes = 15;
sgi_set_entire();
sgi_set_volhdr();
for (i = 0; i < 4; i++) {
if (old[i].sysid) {
sgi_set_partition(i, old[i].start, old[i].nsect, old[i].sysid);
}
}
}
static void
bsd_select(void)
{
#if !defined(__alpha__)
int t, ss;
struct partition *p;
for (t = 0; t < 4; t++) {
p = get_part_table(t);
if (p && is_bsd_partition_type(p->sys_ind)) {
xbsd_part = p;
xbsd_part_index = t;
ss = get_start_sect(xbsd_part);
if (ss == 0) {
printf("Partition %s has invalid starting sector 0\n",
partname(disk_device, t+1, 0));
return;
}
printf("Reading disklabel of %s at sector %u\n",
partname(disk_device, t+1, 0), ss + BSD_LABELSECTOR);
if (xbsd_readlabel(xbsd_part) == 0) {
if (xbsd_create_disklabel() == 0)
return;
break;
}
}
}
if (t == 4) {
printf("There is no *BSD partition on %s\n", disk_device);
return;
}
#elif defined(__alpha__)
if (xbsd_readlabel(NULL) == 0)
if (xbsd_create_disklabel() == 0)
exit(EXIT_SUCCESS);
#endif
while (1) {
bb_putchar('\n');
switch (tolower(read_nonempty("BSD disklabel command (m for help): "))) {
case 'd':
xbsd_delete_part();
break;
case 'e':
xbsd_edit_disklabel();
break;
case 'i':
xbsd_write_bootstrap();
break;
case 'l':
xbsd_list_types();
break;
case 'n':
xbsd_new_part();
break;
case 'p':
xbsd_print_disklabel(0);
break;
case 'q':
if (ENABLE_FEATURE_CLEAN_UP)
close_dev_fd();
exit(EXIT_SUCCESS);
case 'r':
return;
case 's':
xbsd_print_disklabel(1);
break;
case 't':
xbsd_change_fstype();
break;
case 'u':
change_units();
break;
case 'w':
xbsd_write_disklabel();
break;
#if !defined(__alpha__)
case 'x':
xbsd_link_part();
break;
#endif
default:
bsd_menu();
break;
}
}
}
/*
功能：
通过系统设备编号和分区类型获得该设备的所有分区信息
参数：
device：系统设备编号
type：分区类型（主分区、扩展分区）
返回值：
（无）
*/
static void partition(int index){
/* int driver=DRIVER(device); */
/* int sdevice=SDEVICE_HD(device); */
/* int prim=PRIM_HD(device); */
/* int logical=LOGICAL_HD(device); */
/* int devie=DEVICE(index); */
int hd_index=HD_INDEX(index);
/* int hd_part_index=HD_PART_INDEX(index); */
struct s_hd_info *hdi=&hd_info[hd_index];
/*一个硬盘设备所有分区表项信息*/
struct s_hd_part_entry prim_part_table[HD_ENT_PER_PRIM_PART];
struct s_hd_part_entry logical_part_table[HD_ENT_PER_LOGICAL_PART];
//获得该硬盘分区表信息
get_part_table(index,HD_PRIM_TABLE_SECTOR,prim_part_table,HD_ENT_PER_PRIM_PART);
/* get_part_table(index,20001,prim_part_table,HD_ENT_PER_PRIM_PART); */
int prim_index=0;//用于遍历所有主分区
int logical_index=0;//用于遍历所有逻辑分区
int extended_index=0;//记录主分区中对应扩展分区的序号
/*遍历所有主分区*/
for(prim_index=1;prim_index<=HD_PART_PRIM_COUNT;prim_index++){
int prim_table_index=prim_index-1;
if(prim_part_table[prim_table_index].part_type==NO_PART)
continue;
hdi->primary[prim_index].base=prim_part_table[prim_table_index].begin_sector_lba;
hdi->primary[prim_index].size=prim_part_table[prim_table_index].sectors_count;
#ifdef DEBUG
printl("prim %d:base=%d length=%d part_type=%d\n",prim_index,hdi->primary[prim_index].base,hdi->primary[prim_index].size,prim_part_table[prim_table_index].part_type);
#endif
if(prim_part_table[prim_table_index].part_type==EXTENDED_PART){
assert(extended_index==0,"only one extended part can exist!");
int extended_index=prim_index;
int logical_begin_sector=hdi->primary[extended_index].base;
for(logical_index=0;logical_index<HD_PART_LOGICAL_COUNT;logical_index++){
get_part_table(index,logical_begin_sector,logical_part_table,HD_ENT_PER_LOGICAL_PART);
hdi->logical[logical_index].base=logical_begin_sector+logical_part_table[0].begin_sector_lba;
hdi->logical[logical_index].size=logical_part_table[0].sectors_count;
#ifdef DEBUG
printl("logical %d: base=%d length=%d part_type=%d \nnext_part_type=%d\n",logical_index,hdi->logical[logical_index].base,logical_index,hdi->logical[logical_index].size,logical_part_table[0],logical_part_table[1].part_type);
#endif
if(logical_part_table[1].part_type==NO_PART){
break;
}
else{
logical_begin_sector=hdi->primary[extended_index].base+logical_part_table[1].begin_sector_lba;
}
}
}
}
}
static int sgi_create_disklabel(struct fdisk_context *cxt)
{
struct hd_geometry geometry;
struct {
unsigned int start;
unsigned int nsect;
int sysid;
} old[4];
int i=0;
sector_t llsectors;
int res; /* the result from the ioctl */
int sec_fac; /* the sector factor */
sec_fac = cxt->sector_size / 512; /* determine the sector factor */
fprintf(stderr,
_("Building a new SGI disklabel.\n"));
other_endian = (BYTE_ORDER == LITTLE_ENDIAN);
res = blkdev_get_sectors(cxt->dev_fd, &llsectors);
#ifdef HDIO_GETGEO
if (ioctl(cxt->dev_fd, HDIO_GETGEO, &geometry) < 0)
err(EXIT_FAILURE, _("HDIO_GETGEO ioctl failed on %s"), cxt->dev_path);
cxt->geom.heads = geometry.heads;
cxt->geom.sectors = geometry.sectors;
if (res == 0) {
/* the get device size ioctl was successful */
sector_t llcyls;
llcyls = llsectors / (cxt->geom.heads * cxt->geom.sectors * sec_fac);
cxt->geom.cylinders = llcyls;
if (cxt->geom.cylinders != llcyls) /* truncated? */
cxt->geom.cylinders = ~0;
} else {
/* otherwise print error and use truncated version */
cxt->geom.cylinders = geometry.cylinders;
fprintf(stderr,
_("Warning: BLKGETSIZE ioctl failed on %s. "
"Using geometry cylinder value of %llu.\n"
"This value may be truncated for devices"
" > 33.8 GB.\n"), cxt->dev_path, cxt->geom.cylinders);
}
#endif
/*
* Convert old MBR to SGI label, make it DEPRECATED, this feature
* has to be handled in by any top-level fdisk command.
*/
for (i = 0; i < 4; i++) {
old[i].sysid = 0;
if (mbr_is_valid_magic(cxt->firstsector)) {
if (get_part_table(i)->sys_ind) {
old[i].sysid = get_part_table(i)->sys_ind;
old[i].start = get_start_sect(get_part_table(i));
old[i].nsect = get_nr_sects(get_part_table(i));
if (debug)
printf(_("ID=%02x\tSTART=%d\tLENGTH=%d\n"),
old[i].sysid, old[i].start, old[i].nsect);
}
}
}
for (i = 0; i < 4; i++)
if (old[i].sysid) {
printf(_("Trying to keep parameters of partitions already set.\n"));
break;
}
fdisk_zeroize_firstsector(cxt);
sgilabel->magic = SSWAP32(SGI_LABEL_MAGIC);
sgilabel->boot_part = SSWAP16(0);
sgilabel->swap_part = SSWAP16(1);
/* sizeof(sgilabel->boot_file) = 16 > 6 */
memset(sgilabel->boot_file, 0, 16);
strcpy((char *) sgilabel->boot_file, "/unix");
sgilabel->devparam.skew = (0);
sgilabel->devparam.gap1 = (0);
sgilabel->devparam.gap2 = (0);
sgilabel->devparam.sparecyl = (0);
sgilabel->devparam.pcylcount = SSWAP16(geometry.cylinders);
sgilabel->devparam.head_vol0 = SSWAP16(0);
sgilabel->devparam.ntrks = SSWAP16(geometry.heads);
/* tracks/cylinder (heads) */
sgilabel->devparam.cmd_tag_queue_depth = (0);
sgilabel->devparam.unused0 = (0);
sgilabel->devparam.unused1 = SSWAP16(0);
sgilabel->devparam.nsect = SSWAP16(geometry.sectors);
/* sectors/track */
sgilabel->devparam.bytes = SSWAP16(cxt->sector_size);
sgilabel->devparam.ilfact = SSWAP16(1);
sgilabel->devparam.flags = SSWAP32(TRACK_FWD|\
IGNORE_ERRORS|RESEEK);
sgilabel->devparam.datarate = SSWAP32(0);
sgilabel->devparam.retries_on_error = SSWAP32(1);
sgilabel->devparam.ms_per_word = SSWAP32(0);
sgilabel->devparam.xylogics_gap1 = SSWAP16(0);
sgilabel->devparam.xylogics_syncdelay = SSWAP16(0);
sgilabel->devparam.xylogics_readdelay = SSWAP16(0);
sgilabel->devparam.xylogics_gap2 = SSWAP16(0);
sgilabel->devparam.xylogics_readgate = SSWAP16(0);
sgilabel->devparam.xylogics_writecont = SSWAP16(0);
memset(&(sgilabel->directory), 0, sizeof(struct volume_directory)*15);
memset(&(sgilabel->partitions), 0, sizeof(struct sgi_partition)*16);
cxt->disklabel = FDISK_DISKLABEL_SGI;
partitions = 16;
volumes = 15;
sgi_set_entire(cxt);
sgi_set_volhdr(cxt);
for (i = 0; i < 4; i++) {
if (old[i].sysid) {
sgi_set_partition(cxt, i, old[i].start, old[i].nsect, old[i].sysid);
}
}
return 0;
}
void
create_sgilabel(void)
{
struct hd_geometry geometry;
struct {
unsigned int start;
unsigned int nsect;
int sysid;
} old[4];
int i=0;
unsigned long long llsectors;
int res; /* the result from the ioctl */
int sec_fac; /* the sector factor */
sec_fac = sector_size / 512; /* determine the sector factor */
fprintf(stderr,
_("Building a new SGI disklabel.\n"));
other_endian = (BYTE_ORDER == LITTLE_ENDIAN);
res = blkdev_get_sectors(fd, &llsectors);
#ifdef HDIO_GETGEO
if (!ioctl(fd, HDIO_GETGEO, &geometry)) {
heads = geometry.heads;
sectors = geometry.sectors;
if (res == 0) {
/* the get device size ioctl was successful */
unsigned long long llcyls;
llcyls = llsectors / (heads * sectors * sec_fac);
cylinders = llcyls;
if (cylinders != llcyls) /* truncated? */
cylinders = ~0;
} else {
/* otherwise print error and use truncated version */
cylinders = geometry.cylinders;
fprintf(stderr,
_("Warning: BLKGETSIZE ioctl failed on %s. "
"Using geometry cylinder value of %d.\n"
"This value may be truncated for devices"
" > 33.8 GB.\n"), disk_device, cylinders);
}
}
#endif
for (i = 0; i < 4; i++) {
old[i].sysid = 0;
if (valid_part_table_flag(MBRbuffer)) {
if (get_part_table(i)->sys_ind) {
old[i].sysid = get_part_table(i)->sys_ind;
old[i].start = get_start_sect(get_part_table(i));
old[i].nsect = get_nr_sects(get_part_table(i));
if (debug)
printf(_("ID=%02x\tSTART=%d\tLENGTH=%d\n"),
old[i].sysid, old[i].start, old[i].nsect);
}
}
}
for (i = 0; i < 4; i++)
if (old[i].sysid) {
printf(_("Trying to keep parameters of partitions already set.\n"));
break;
}
zeroize_mbr_buffer();
sgilabel->magic = SSWAP32(SGI_LABEL_MAGIC);
sgilabel->boot_part = SSWAP16(0);
sgilabel->swap_part = SSWAP16(1);
/* sizeof(sgilabel->boot_file) = 16 > 6 */
memset(sgilabel->boot_file, 0, 16);
strcpy((char *) sgilabel->boot_file, "/unix");
sgilabel->devparam.skew = (0);
sgilabel->devparam.gap1 = (0);
sgilabel->devparam.gap2 = (0);
sgilabel->devparam.sparecyl = (0);
sgilabel->devparam.pcylcount = SSWAP16(geometry.cylinders);
sgilabel->devparam.head_vol0 = SSWAP16(0);
sgilabel->devparam.ntrks = SSWAP16(geometry.heads);
/* tracks/cylinder (heads) */
sgilabel->devparam.cmd_tag_queue_depth = (0);
sgilabel->devparam.unused0 = (0);
sgilabel->devparam.unused1 = SSWAP16(0);
sgilabel->devparam.nsect = SSWAP16(geometry.sectors);
/* sectors/track */
sgilabel->devparam.bytes = SSWAP16(sector_size);
sgilabel->devparam.ilfact = SSWAP16(1);
sgilabel->devparam.flags = SSWAP32(TRACK_FWD|\
IGNORE_ERRORS|RESEEK);
sgilabel->devparam.datarate = SSWAP32(0);
sgilabel->devparam.retries_on_error = SSWAP32(1);
sgilabel->devparam.ms_per_word = SSWAP32(0);
sgilabel->devparam.xylogics_gap1 = SSWAP16(0);
sgilabel->devparam.xylogics_syncdelay = SSWAP16(0);
sgilabel->devparam.xylogics_readdelay = SSWAP16(0);
sgilabel->devparam.xylogics_gap2 = SSWAP16(0);
sgilabel->devparam.xylogics_readgate = SSWAP16(0);
sgilabel->devparam.xylogics_writecont = SSWAP16(0);
memset(&(sgilabel->directory), 0, sizeof(struct volume_directory)*15);
memset(&(sgilabel->partitions), 0, sizeof(struct sgi_partition)*16);
disklabel = SGI_LABEL;
partitions = 16;
volumes = 15;
sgi_set_entire();
sgi_set_volhdr();
for (i = 0; i < 4; i++) {
if (old[i].sysid) {
sgi_set_partition(i, old[i].start, old[i].nsect, old[i].sysid);
}
}
}