| /* |
| * Copyright (C) 2011 Karel Zak <kzak@redhat.com> |
| */ |
| #ifndef UTIL_LINUX_SYSFS_H |
| #define UTIL_LINUX_SYSFS_H |
| |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| #include <stdint.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #include <string.h> |
| #include <inttypes.h> |
| #include <dirent.h> |
| |
| #include "path.h" |
| |
| /** |
| * sysfs_devname_sys_to_dev: |
| * @name: devname to be converted in place |
| * |
| * Linux kernel linux/drivers/base/core.c: device_get_devnode() |
| * defines a replacement of '!' in the /sys device name by '/' in the |
| * /dev device name. This helper replaces all occurrences of '!' in |
| * @name by '/' to convert from /sys to /dev. |
| */ |
| static inline void sysfs_devname_sys_to_dev(char *name) |
| { |
| char *c; |
| |
| if (name) |
| while ((c = strchr(name, '!'))) |
| c[0] = '/'; |
| } |
| |
| /** |
| * sysfs_devname_dev_to_sys: |
| * @name: devname to be converted in place |
| * |
| * See sysfs_devname_sys_to_dev(). |
| */ |
| static inline void sysfs_devname_dev_to_sys(char *name) |
| { |
| char *c; |
| |
| if (name) |
| while ((c = strchr(name, '/'))) |
| c[0] = '!'; |
| } |
| |
| struct sysfs_blkdev { |
| dev_t devno; |
| struct path_cxt *parent; |
| |
| unsigned int scsi_host, |
| scsi_channel, |
| scsi_target, |
| scsi_lun; |
| |
| unsigned int has_hctl : 1, |
| hctl_error : 1 ; |
| }; |
| |
| void ul_sysfs_init_debug(void); |
| |
| struct path_cxt *ul_new_sysfs_path(dev_t devno, struct path_cxt *parent, const char *prefix); |
| int sysfs_blkdev_init_path(struct path_cxt *pc, dev_t devno, struct path_cxt *parent); |
| |
| int sysfs_blkdev_set_parent(struct path_cxt *pc, struct path_cxt *parent); |
| struct path_cxt *sysfs_blkdev_get_parent(struct path_cxt *pc); |
| |
| char *sysfs_blkdev_get_name(struct path_cxt *pc, char *buf, size_t bufsiz); |
| int sysfs_blkdev_is_partition_dirent(DIR *dir, struct dirent *d, const char *parent_name); |
| int sysfs_blkdev_count_partitions(struct path_cxt *pc, const char *devname); |
| dev_t sysfs_blkdev_partno_to_devno(struct path_cxt *pc, int partno); |
| char *sysfs_blkdev_get_slave(struct path_cxt *pc); |
| char *sysfs_blkdev_get_path(struct path_cxt *pc, char *buf, size_t bufsiz); |
| dev_t sysfs_blkdev_get_devno(struct path_cxt *pc); |
| |
| char *sysfs_blkdev_get_devchain(struct path_cxt *pc, char *buf, size_t bufsz); |
| int sysfs_blkdev_next_subsystem(struct path_cxt *pc __attribute__((unused)), char *devchain, char **subsys); |
| |
| int sysfs_blkdev_is_hotpluggable(struct path_cxt *pc); |
| int sysfs_blkdev_get_wholedisk( struct path_cxt *pc, |
| char *diskname, |
| size_t len, |
| dev_t *diskdevno); |
| |
| int sysfs_devno_to_wholedisk(dev_t dev, char *diskname, |
| size_t len, dev_t *diskdevno); |
| int sysfs_devno_is_dm_private(dev_t devno, char **uuid); |
| int sysfs_devno_is_wholedisk(dev_t devno); |
| dev_t sysfs_devname_to_devno(const char *name); |
| dev_t __sysfs_devname_to_devno(const char *prefix, const char *name, const char *parent); |
| char *sysfs_devno_to_devpath(dev_t devno, char *buf, size_t bufsiz); |
| char *sysfs_devno_to_devname(dev_t devno, char *buf, size_t bufsiz); |
| |
| int sysfs_blkdev_scsi_get_hctl(struct path_cxt *pc, int *h, int *c, int *t, int *l); |
| char *sysfs_blkdev_scsi_host_strdup_attribute(struct path_cxt *pc, |
| const char *type, const char *attr); |
| int sysfs_blkdev_scsi_host_is(struct path_cxt *pc, const char *type); |
| int sysfs_blkdev_scsi_has_attribute(struct path_cxt *pc, const char *attr); |
| int sysfs_blkdev_scsi_path_contains(struct path_cxt *pc, const char *pattern); |
| |
| |
| #endif /* UTIL_LINUX_SYSFS_H */ |