1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #include <linux/pagemap.h> 3 #include <linux/blkdev.h> 4 #include <linux/genhd.h> 5 #include "../blk.h" 6 7 /* 8 * add_gd_partition adds a partitions details to the devices partition 9 * description. 10 */ 11 struct parsed_partitions { 12 struct block_device *bdev; 13 char name[BDEVNAME_SIZE]; 14 struct { 15 sector_t from; 16 sector_t size; 17 int flags; 18 bool has_info; 19 struct partition_meta_info info; 20 } *parts; 21 int next; 22 int limit; 23 bool access_beyond_eod; 24 char *pp_buf; 25 }; 26 27 typedef struct { 28 struct page *v; 29 } Sector; 30 31 void *read_part_sector(struct parsed_partitions *state, sector_t n, Sector *p); 32 static inline void put_dev_sector(Sector p) 33 { 34 put_page(p.v); 35 } 36 37 static inline void 38 put_partition(struct parsed_partitions *p, int n, sector_t from, sector_t size) 39 { 40 if (n < p->limit) { 41 char tmp[1 + BDEVNAME_SIZE + 10 + 1]; 42 43 p->parts[n].from = from; 44 p->parts[n].size = size; 45 snprintf(tmp, sizeof(tmp), " %s%d", p->name, n); 46 strlcat(p->pp_buf, tmp, PAGE_SIZE); 47 } 48 } 49 50 /* detection routines go here in alphabetical order: */ 51 int adfspart_check_ADFS(struct parsed_partitions *state); 52 int adfspart_check_CUMANA(struct parsed_partitions *state); 53 int adfspart_check_EESOX(struct parsed_partitions *state); 54 int adfspart_check_ICS(struct parsed_partitions *state); 55 int adfspart_check_POWERTEC(struct parsed_partitions *state); 56 int aix_partition(struct parsed_partitions *state); 57 int amiga_partition(struct parsed_partitions *state); 58 int atari_partition(struct parsed_partitions *state); 59 int cmdline_partition(struct parsed_partitions *state); 60 int efi_partition(struct parsed_partitions *state); 61 int ibm_partition(struct parsed_partitions *); 62 int karma_partition(struct parsed_partitions *state); 63 int ldm_partition(struct parsed_partitions *state); 64 int mac_partition(struct parsed_partitions *state); 65 int msdos_partition(struct parsed_partitions *state); 66 int osf_partition(struct parsed_partitions *state); 67 int sgi_partition(struct parsed_partitions *state); 68 int sun_partition(struct parsed_partitions *state); 69 int sysv68_partition(struct parsed_partitions *state); 70 int ultrix_partition(struct parsed_partitions *state); 71