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authorbigbiff <bigbiff@teamw.in>2015-01-02 01:44:14 +0100
committerDees Troy <dees_troy@teamw.in>2015-01-05 04:38:42 +0100
commit7b4c7a681cc4c0a53dc8a8baf4853e921cfbf5de (patch)
treefb69cb515cb4ab675d5850684cc402100b7a2a22 /libblkid/loopdev.h
parentcrypto: remove unused libs and clean up makefile (diff)
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Diffstat (limited to 'libblkid/loopdev.h')
-rw-r--r--libblkid/loopdev.h192
1 files changed, 0 insertions, 192 deletions
diff --git a/libblkid/loopdev.h b/libblkid/loopdev.h
deleted file mode 100644
index 6efa0c78f..000000000
--- a/libblkid/loopdev.h
+++ /dev/null
@@ -1,192 +0,0 @@
-#ifndef UTIL_LINUX_LOOPDEV_H
-#define UTIL_LINUX_LOOPDEV_H
-
-#include "sysfs.h"
-
-/*
- * loop_info.lo_encrypt_type
- */
-#define LO_CRYPT_NONE 0
-#define LO_CRYPT_XOR 1
-#define LO_CRYPT_DES 2
-#define LO_CRYPT_CRYPTOAPI 18
-
-#define LOOP_SET_FD 0x4C00
-#define LOOP_CLR_FD 0x4C01
-/*
- * Obsolete (kernel < 2.6)
- *
- * #define LOOP_SET_STATUS 0x4C02
- * #define LOOP_GET_STATUS 0x4C03
- */
-#define LOOP_SET_STATUS64 0x4C04
-#define LOOP_GET_STATUS64 0x4C05
-/* #define LOOP_CHANGE_FD 0x4C06 */
-#define LOOP_SET_CAPACITY 0x4C07
-
-/* /dev/loop-control interface */
-#ifndef LOOP_CTL_ADD
-# define LOOP_CTL_ADD 0x4C80
-# define LOOP_CTL_REMOVE 0x4C81
-# define LOOP_CTL_GET_FREE 0x4C82
-#endif
-
-/*
- * loop_info.lo_flags
- */
-enum {
- LO_FLAGS_READ_ONLY = 1,
- LO_FLAGS_USE_AOPS = 2,
- LO_FLAGS_AUTOCLEAR = 4, /* kernel >= 2.6.25 */
- LO_FLAGS_PARTSCAN = 8, /* kernel >= 3.2 */
-};
-
-#define LO_NAME_SIZE 64
-#define LO_KEY_SIZE 32
-
-/*
- * Linux LOOP_{SET,GET}_STATUS64 ioclt struct
- */
-struct loop_info64 {
- uint64_t lo_device;
- uint64_t lo_inode;
- uint64_t lo_rdevice;
- uint64_t lo_offset;
- uint64_t lo_sizelimit; /* bytes, 0 == max available */
- uint32_t lo_number;
- uint32_t lo_encrypt_type;
- uint32_t lo_encrypt_key_size;
- uint32_t lo_flags;
- uint8_t lo_file_name[LO_NAME_SIZE];
- uint8_t lo_crypt_name[LO_NAME_SIZE];
- uint8_t lo_encrypt_key[LO_KEY_SIZE];
- uint64_t lo_init[2];
-};
-
-#define LOOPDEV_MAJOR 7 /* loop major number */
-#define LOOPDEV_DEFAULT_NNODES 8 /* default number of loop devices */
-
-struct loopdev_iter {
- FILE *proc; /* /proc/partitions */
- DIR *sysblock; /* /sys/block */
- int ncur; /* current position */
- int *minors; /* ary of minor numbers (when scan whole /dev) */
- int nminors; /* number of items in *minors */
- int ct_perm; /* count permission problems */
- int ct_succ; /* count number of detected devices */
-
- unsigned int done:1; /* scanning done */
- unsigned int default_check:1;/* check first LOOPDEV_NLOOPS */
- int flags; /* LOOPITER_FL_* flags */
-};
-
-enum {
- LOOPITER_FL_FREE = (1 << 0),
- LOOPITER_FL_USED = (1 << 1)
-};
-
-/*
- * handler for work with loop devices
- */
-struct loopdev_cxt {
- char device[128]; /* device path (e.g. /dev/loop<N>) */
- char *filename; /* backing file for loopcxt_set_... */
- int fd; /* open(/dev/looo<N>) */
- int mode; /* fd mode O_{RDONLY,RDWR} */
-
- int flags; /* LOOPDEV_FL_* flags */
- unsigned int has_info:1; /* .info contains data */
- unsigned int extra_check:1; /* unusual stuff for iterator */
- unsigned int debug:1; /* debug mode ON/OFF */
- unsigned int info_failed:1; /* LOOP_GET_STATUS ioctl failed */
-
- struct sysfs_cxt sysfs; /* pointer to /sys/dev/block/<maj:min>/ */
- struct loop_info64 info; /* for GET/SET ioctl */
- struct loopdev_iter iter; /* scans /sys or /dev for used/free devices */
-};
-
-#define UL_LOOPDEVCXT_EMPTY { .fd = -1, .sysfs = UL_SYSFSCXT_EMPTY }
-
-/*
- * loopdev_cxt.flags
- */
-enum {
- LOOPDEV_FL_RDONLY = (1 << 0), /* open(/dev/loop) mode; default */
- LOOPDEV_FL_RDWR = (1 << 1), /* necessary for loop setup only */
- LOOPDEV_FL_OFFSET = (1 << 4),
- LOOPDEV_FL_NOSYSFS = (1 << 5),
- LOOPDEV_FL_NOIOCTL = (1 << 6),
- LOOPDEV_FL_DEVSUBDIR = (1 << 7),
- LOOPDEV_FL_CONTROL = (1 << 8), /* system with /dev/loop-control */
- LOOPDEV_FL_SIZELIMIT = (1 << 9)
-};
-
-/*
- * High-level
- */
-extern int loopmod_supports_partscan(void);
-
-extern int is_loopdev(const char *device);
-extern int loopdev_is_autoclear(const char *device);
-
-extern char *loopdev_get_backing_file(const char *device);
-extern int loopdev_is_used(const char *device, const char *filename,
- uint64_t offset, int flags);
-extern char *loopdev_find_by_backing_file(const char *filename,
- uint64_t offset, int flags);
-extern int loopcxt_find_unused(struct loopdev_cxt *lc);
-extern int loopdev_delete(const char *device);
-extern int loopdev_count_by_backing_file(const char *filename, char **loopdev);
-
-/*
- * Low-level
- */
-extern int loopcxt_init(struct loopdev_cxt *lc, int flags)
- __attribute__ ((warn_unused_result));
-extern void loopcxt_deinit(struct loopdev_cxt *lc);
-extern void loopcxt_enable_debug(struct loopdev_cxt *lc, int enable);
-
-extern int loopcxt_set_device(struct loopdev_cxt *lc, const char *device)
- __attribute__ ((warn_unused_result));
-extern int loopcxt_has_device(struct loopdev_cxt *lc);
-extern char *loopcxt_strdup_device(struct loopdev_cxt *lc);
-extern const char *loopcxt_get_device(struct loopdev_cxt *lc);
-extern struct sysfs_cxt *loopcxt_get_sysfs(struct loopdev_cxt *lc);
-extern struct loop_info64 *loopcxt_get_info(struct loopdev_cxt *lc);
-
-extern int loopcxt_get_fd(struct loopdev_cxt *lc);
-extern int loopcxt_set_fd(struct loopdev_cxt *lc, int fd, int mode);
-
-extern int loopcxt_init_iterator(struct loopdev_cxt *lc, int flags);
-extern int loopcxt_deinit_iterator(struct loopdev_cxt *lc);
-extern int loopcxt_next(struct loopdev_cxt *lc);
-
-extern int loopcxt_setup_device(struct loopdev_cxt *lc);
-extern int loopcxt_delete_device(struct loopdev_cxt *lc);
-
-int loopcxt_set_offset(struct loopdev_cxt *lc, uint64_t offset);
-int loopcxt_set_sizelimit(struct loopdev_cxt *lc, uint64_t sizelimit);
-int loopcxt_set_flags(struct loopdev_cxt *lc, uint32_t flags);
-int loopcxt_set_backing_file(struct loopdev_cxt *lc, const char *filename);
-
-extern char *loopcxt_get_backing_file(struct loopdev_cxt *lc);
-extern int loopcxt_get_backing_devno(struct loopdev_cxt *lc, dev_t *devno);
-extern int loopcxt_get_backing_inode(struct loopdev_cxt *lc, ino_t *ino);
-extern int loopcxt_get_offset(struct loopdev_cxt *lc, uint64_t *offset);
-extern int loopcxt_get_sizelimit(struct loopdev_cxt *lc, uint64_t *size);
-extern int loopcxt_get_encrypt_type(struct loopdev_cxt *lc, uint32_t *type);
-extern const char *loopcxt_get_crypt_name(struct loopdev_cxt *lc);
-extern int loopcxt_is_autoclear(struct loopdev_cxt *lc);
-extern int loopcxt_is_readonly(struct loopdev_cxt *lc);
-extern int loopcxt_is_partscan(struct loopdev_cxt *lc);
-extern int loopcxt_find_by_backing_file(struct loopdev_cxt *lc,
- const char *filename,
- uint64_t offset, int flags);
-
-extern int loopcxt_is_used(struct loopdev_cxt *lc,
- struct stat *st,
- const char *backing_file,
- uint64_t offset,
- int flags);
-
-#endif /* UTIL_LINUX_LOOPDEV_H */