cmd/format/modify_partition.c

45 static void	adj_cyl_offset(struct dk_map32 *map);
46 static int	check_map(struct dk_map32 *map);
47 static void	get_user_map(struct dk_map32 *map, int float_part);
48 static void	get_user_map_efi(struct dk_gpt *map, int float_part);
75 	struct	dk_map32	*map = tmp_pinfo->pinfo_map;
167 		 * Create partition map from existing map
171 			map[i].dkl_nblk = cur_parts->pinfo_map[i].dkl_nblk;
172 			map[i].dkl_cylno = cur_parts->pinfo_map[i].dkl_cylno;
176 		 * Make an empty partition map, with all the space
181 			map[i].dkl_nblk = 0;
182 			map[i].dkl_cylno = 0;
184 		map[C_PARTITION].dkl_nblk = ncyl * spc();
190 		map[I_PARTITION].dkl_nblk = spc();
191 		map[I_PARTITION].dkl_cylno = 0;
193 			map[J_PARTITION].dkl_nblk = 2 * spc();
194 			map[J_PARTITION].dkl_cylno = spc() / spc();
244 			map[free_hog].dkl_nblk = map[C_PARTITION].dkl_nblk;
246 			map[free_hog].dkl_nblk -= map[I_PARTITION].dkl_nblk;
248 				map[free_hog].dkl_nblk -=
249 					map[J_PARTITION].dkl_nblk;
258 		if (map[free_hog].dkl_nblk == 0) {
296 	get_user_map(map, free_hog);
301 	adj_cyl_offset(map);
314 		 * Update new partition map
317 			cur_parts->pinfo_map[i].dkl_nblk = map[i].dkl_nblk;
318 			cur_parts->pinfo_map[i].dkl_cylno = map[i].dkl_cylno;
321 				map[i].dkl_cylno * nhead * nsect;
323 				map[i].dkl_nblk;
349 adj_cyl_offset(map)
350 	struct	dk_map32 *map;
366 		if (i != C_PARTITION && map[i].dkl_nblk) {
367 			map[i].dkl_cylno = cyloffset;
368 			cyloffset += (map[i].dkl_nblk + (spc()-1))/spc();
369 		} else if (map[i].dkl_nblk == 0) {
370 			map[i].dkl_cylno = 0;
379 		if (i != C_PARTITION && map[i].dkl_nblk) {
380 			map[i].dkl_cylno = cyloffset;
381 			cyloffset += (map[i].dkl_nblk + (spc()-1))/spc();
382 		} else if (map[i].dkl_nblk == 0) {
383 			map[i].dkl_cylno = 0;
393 check_map(map)
394 	struct	dk_map32 *map;
404 	cyloffset = map[0].dkl_cylno;
405 	tot_blks = map[0].dkl_nblk;
413 		if (map[i].dkl_cylno > (blkaddr32_t)ncyl-1) {
416 				(PARTITION_BASE+i), map[i].dkl_cylno);
419 		if (map[i].dkl_nblk >
420 			(blkaddr32_t)(ncyl - map[i].dkl_cylno) * spc()) {
423 				(PARTITION_BASE+i), map[i].dkl_nblk);
426 		if (i != C_PARTITION && map[i].dkl_nblk) {
431 			if (map[i].dkl_cylno < cyloffset) {
435 			} else if (map[i].dkl_cylno > cyloffset) {
439 			cyloffset += (map[i].dkl_nblk + (spc()-1))/spc();
440 			tot_blks = map[i].dkl_nblk;
443 	if (tot_blks > map[C_PARTITION].dkl_nblk) {
458 get_user_map(map, float_part)
459 	struct	dk_map32 *map;
478 			ioparam.io_bounds.upper = map[i].dkl_nblk +
479 				map[float_part].dkl_nblk;
480 			deflt = map[i].dkl_nblk;
492 			map[float_part].dkl_nblk -= (newsize - map[i].dkl_nblk);
493 			map[i].dkl_nblk = newsize;
552 get_user_map_efi(map, float_part)
553 	struct dk_gpt *map;
564 	for (i = 0; i < map->efi_nparts - 1; i++) {
569 			ioparam.io_bounds.upper = map->efi_last_u_lba;
571 			efi_deflt.end_sector = map->efi_parts[i].p_size;
577 			    map->efi_parts[i].p_tag = V_UNASSIGNED;
578 			} else if ((i64 != 0) && (map->efi_parts[i].p_tag ==
580 			    map->efi_parts[i].p_tag = V_USR;
583 			    map->efi_parts[i].p_start = 0;
585 			    map->efi_parts[i].p_start = start_lba;
587 			map->efi_parts[i].p_size = i64;
591 		map->efi_parts[float_part].p_start = start_lba;
592 		map->efi_parts[float_part].p_size = map->efi_last_u_lba -
594 		map->efi_parts[float_part].p_tag = V_USR;
595 		if (map->efi_parts[float_part].p_size == UINT_MAX64) {
596 			map->efi_parts[float_part].p_size = 0;
597 			map->efi_parts[float_part].p_start = 0;
598 			map->efi_parts[float_part].p_tag = V_UNASSIGNED;
602 		for (i = 0; i < map->efi_nparts; i++) {
603 		    if (map->efi_parts[i].p_tag == V_RESERVED) {
604 			map->efi_parts[i].p_start = map->efi_last_u_lba -
606 			map->efi_parts[i].p_size = (1024 * 16);