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7fe16fda KZ |
1 | /* |
2 | * Copyright (C) 2011 Karel Zak <kzak@redhat.com> | |
3 | */ | |
4 | #ifndef UTIL_LINUX_SYSFS_H | |
5 | #define UTIL_LINUX_SYSFS_H | |
6 | ||
7 | ||
8 | #include <stdio.h> | |
9 | #include <stdlib.h> | |
10 | #include <unistd.h> | |
11 | #include <stdint.h> | |
12 | #include <sys/types.h> | |
13 | #include <sys/stat.h> | |
7fe16fda KZ |
14 | #include <fcntl.h> |
15 | #include <string.h> | |
16 | #include <inttypes.h> | |
7fe16fda KZ |
17 | #include <dirent.h> |
18 | ||
5387c015 | 19 | #include "path.h" |
d0f7e5b4 | 20 | |
d0dc6c17 | 21 | /** |
6c62abc4 | 22 | * sysfs_devname_sys_to_dev: |
d0dc6c17 SB |
23 | * @name: devname to be converted in place |
24 | * | |
25 | * Linux kernel linux/drivers/base/core.c: device_get_devnode() | |
26 | * defines a replacement of '!' in the /sys device name by '/' in the | |
9e930041 | 27 | * /dev device name. This helper replaces all occurrences of '!' in |
759b120d | 28 | * @name by '/' to convert from /sys to /dev. |
d0dc6c17 | 29 | */ |
6c62abc4 | 30 | static inline void sysfs_devname_sys_to_dev(char *name) |
d0dc6c17 SB |
31 | { |
32 | char *c; | |
33 | ||
34 | if (name) | |
35 | while ((c = strchr(name, '!'))) | |
36 | c[0] = '/'; | |
37 | } | |
38 | ||
759b120d | 39 | /** |
6c62abc4 | 40 | * sysfs_devname_dev_to_sys: |
759b120d SB |
41 | * @name: devname to be converted in place |
42 | * | |
6c62abc4 | 43 | * See sysfs_devname_sys_to_dev(). |
759b120d | 44 | */ |
6c62abc4 | 45 | static inline void sysfs_devname_dev_to_sys(char *name) |
759b120d SB |
46 | { |
47 | char *c; | |
48 | ||
49 | if (name) | |
50 | while ((c = strchr(name, '/'))) | |
51 | c[0] = '!'; | |
52 | } | |
53 | ||
5387c015 KZ |
54 | struct sysfs_blkdev { |
55 | dev_t devno; | |
56 | struct path_cxt *parent; | |
57 | ||
58 | unsigned int scsi_host, | |
59 | scsi_channel, | |
60 | scsi_target, | |
61 | scsi_lun; | |
62 | ||
63 | unsigned int has_hctl : 1, | |
64 | hctl_error : 1 ; | |
65 | }; | |
66 | ||
bcf445fd KZ |
67 | void ul_sysfs_init_debug(void); |
68 | ||
83029ea5 | 69 | struct path_cxt *ul_new_sysfs_path(dev_t devno, struct path_cxt *parent, const char *prefix); |
5387c015 | 70 | int sysfs_blkdev_init_path(struct path_cxt *pc, dev_t devno, struct path_cxt *parent); |
8c3d9cad | 71 | |
5387c015 | 72 | int sysfs_blkdev_set_parent(struct path_cxt *pc, struct path_cxt *parent); |
8c3d9cad | 73 | struct path_cxt *sysfs_blkdev_get_parent(struct path_cxt *pc); |
5387c015 KZ |
74 | |
75 | char *sysfs_blkdev_get_name(struct path_cxt *pc, char *buf, size_t bufsiz); | |
76 | int sysfs_blkdev_is_partition_dirent(DIR *dir, struct dirent *d, const char *parent_name); | |
77 | int sysfs_blkdev_count_partitions(struct path_cxt *pc, const char *devname); | |
78 | dev_t sysfs_blkdev_partno_to_devno(struct path_cxt *pc, int partno); | |
79 | char *sysfs_blkdev_get_slave(struct path_cxt *pc); | |
80 | char *sysfs_blkdev_get_path(struct path_cxt *pc, char *buf, size_t bufsiz); | |
81 | dev_t sysfs_blkdev_get_devno(struct path_cxt *pc); | |
82 | ||
83 | char *sysfs_blkdev_get_devchain(struct path_cxt *pc, char *buf, size_t bufsz); | |
84 | int sysfs_blkdev_next_subsystem(struct path_cxt *pc __attribute__((unused)), char *devchain, char **subsys); | |
85 | ||
86 | int sysfs_blkdev_is_hotpluggable(struct path_cxt *pc); | |
87 | int sysfs_blkdev_get_wholedisk( struct path_cxt *pc, | |
88 | char *diskname, | |
89 | size_t len, | |
90 | dev_t *diskdevno); | |
91 | ||
92 | int sysfs_devno_to_wholedisk(dev_t dev, char *diskname, | |
93 | size_t len, dev_t *diskdevno); | |
94 | int sysfs_devno_is_dm_private(dev_t devno, char **uuid); | |
95 | int sysfs_devno_is_wholedisk(dev_t devno); | |
96 | dev_t sysfs_devname_to_devno(const char *name); | |
ab628c7c | 97 | dev_t __sysfs_devname_to_devno(const char *prefix, const char *name, const char *parent); |
5387c015 KZ |
98 | char *sysfs_devno_to_devpath(dev_t devno, char *buf, size_t bufsiz); |
99 | char *sysfs_devno_to_devname(dev_t devno, char *buf, size_t bufsiz); | |
93c687d8 | 100 | int sysfs_devno_count_partitions(dev_t devno); |
5387c015 KZ |
101 | |
102 | int sysfs_blkdev_scsi_get_hctl(struct path_cxt *pc, int *h, int *c, int *t, int *l); | |
103 | char *sysfs_blkdev_scsi_host_strdup_attribute(struct path_cxt *pc, | |
104 | const char *type, const char *attr); | |
105 | int sysfs_blkdev_scsi_host_is(struct path_cxt *pc, const char *type); | |
ab628c7c KZ |
106 | int sysfs_blkdev_scsi_has_attribute(struct path_cxt *pc, const char *attr); |
107 | int sysfs_blkdev_scsi_path_contains(struct path_cxt *pc, const char *pattern); | |
5387c015 KZ |
108 | |
109 | ||
7fe16fda | 110 | #endif /* UTIL_LINUX_SYSFS_H */ |