block/partitions/check.h

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