Line data    Source code

       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           0 :         folio_put(p.v);
      34             : }
      35             : 
      36             : static inline void
      37           0 : put_partition(struct parsed_partitions *p, int n, sector_t from, sector_t size)
      38             : {
      39           0 :         if (n < p->limit) {
      40             :                 char tmp[1 + BDEVNAME_SIZE + 10 + 1];
      41             : 
      42           0 :                 p->parts[n].from = from;
      43           0 :                 p->parts[n].size = size;
      44           0 :                 snprintf(tmp, sizeof(tmp), " %s%d", p->name, n);
      45           0 :                 strlcat(p->pp_buf, tmp, PAGE_SIZE);
      46             :         }
      47           0 : }
      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);