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);
put_dev_sector(Sector p)31 static inline void put_dev_sector(Sector p)
32 {
33 	folio_put(p.v);
34 }
35 
36 static inline void
put_partition(struct parsed_partitions * p,int n,sector_t from,sector_t size)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);
70