block/partitions/check.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #include <linux/pagemap.h>
0003 #include <linux/blkdev.h>
0004 #include "../blk.h"
0005
0006 /*
0007  * add_gd_partition adds a partitions details to the devices partition
0008  * description.
0009  */
0010 struct parsed_partitions {
0011     struct gendisk *disk;
0012     char name[BDEVNAME_SIZE];
0013     struct {
0014         sector_t from;
0015         sector_t size;
0016         int flags;
0017         bool has_info;
0018         struct partition_meta_info info;
0019     } *parts;
0020     int next;
0021     int limit;
0022     bool access_beyond_eod;
0023     char *pp_buf;
0024 };
0025
0026 typedef struct {
0027     struct folio *v;
0028 } Sector;
0029
0030 void *read_part_sector(struct parsed_partitions *state, sector_t n, Sector *p);
0031 static inline void put_dev_sector(Sector p)
0032 {
0033     folio_put(p.v);
0034 }
0035
0036 static inline void
0037 put_partition(struct parsed_partitions *p, int n, sector_t from, sector_t size)
0038 {
0039     if (n < p->limit) {
0040         char tmp[1 + BDEVNAME_SIZE + 10 + 1];
0041
0042         p->parts[n].from = from;
0043         p->parts[n].size = size;
0044         snprintf(tmp, sizeof(tmp), " %s%d", p->name, n);
0045         strlcat(p->pp_buf, tmp, PAGE_SIZE);
0046     }
0047 }
0048
0049 /* detection routines go here in alphabetical order: */
0050 int adfspart_check_ADFS(struct parsed_partitions *state);
0051 int adfspart_check_CUMANA(struct parsed_partitions *state);
0052 int adfspart_check_EESOX(struct parsed_partitions *state);
0053 int adfspart_check_ICS(struct parsed_partitions *state);
0054 int adfspart_check_POWERTEC(struct parsed_partitions *state);
0055 int aix_partition(struct parsed_partitions *state);
0056 int amiga_partition(struct parsed_partitions *state);
0057 int atari_partition(struct parsed_partitions *state);
0058 int cmdline_partition(struct parsed_partitions *state);
0059 int efi_partition(struct parsed_partitions *state);
0060 int ibm_partition(struct parsed_partitions *);
0061 int karma_partition(struct parsed_partitions *state);
0062 int ldm_partition(struct parsed_partitions *state);
0063 int mac_partition(struct parsed_partitions *state);
0064 int msdos_partition(struct parsed_partitions *state);
0065 int osf_partition(struct parsed_partitions *state);
0066 int sgi_partition(struct parsed_partitions *state);
0067 int sun_partition(struct parsed_partitions *state);
0068 int sysv68_partition(struct parsed_partitions *state);
0069 int ultrix_partition(struct parsed_partitions *state);