block/partitions/check.h

   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);