175 lines
5.8 KiB
C
175 lines
5.8 KiB
C
/*
|
|
* Copyright (C) 2007 Oracle. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public
|
|
* License v2 as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public
|
|
* License along with this program; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 021110-1307, USA.
|
|
*/
|
|
|
|
#ifndef __BTRFS_UTILS_H__
|
|
#define __BTRFS_UTILS_H__
|
|
|
|
#include <sys/stat.h>
|
|
#include "kernel-shared/ctree.h"
|
|
#include <dirent.h>
|
|
#include <stdarg.h>
|
|
#include "common/defs.h"
|
|
#include "common/internal.h"
|
|
#include "btrfs-list.h"
|
|
#include "kernel-lib/sizes.h"
|
|
#include "common/messages.h"
|
|
#include "ioctl.h"
|
|
#include "common/fsfeatures.h"
|
|
|
|
/*
|
|
* Output modes of size
|
|
*/
|
|
#define UNITS_RESERVED (0)
|
|
#define UNITS_BYTES (1)
|
|
#define UNITS_KBYTES (2)
|
|
#define UNITS_MBYTES (3)
|
|
#define UNITS_GBYTES (4)
|
|
#define UNITS_TBYTES (5)
|
|
#define UNITS_RAW (1U << UNITS_MODE_SHIFT)
|
|
#define UNITS_BINARY (2U << UNITS_MODE_SHIFT)
|
|
#define UNITS_DECIMAL (3U << UNITS_MODE_SHIFT)
|
|
/* Interpret the u64 value as s64 */
|
|
#define UNITS_NEGATIVE (4U << UNITS_MODE_SHIFT)
|
|
#define UNITS_MODE_MASK ((1U << UNITS_MODE_SHIFT) - 1)
|
|
#define UNITS_MODE_SHIFT (8)
|
|
#define UNITS_HUMAN_BINARY (UNITS_BINARY)
|
|
#define UNITS_HUMAN_DECIMAL (UNITS_DECIMAL)
|
|
#define UNITS_HUMAN (UNITS_HUMAN_BINARY)
|
|
#define UNITS_DEFAULT (UNITS_HUMAN)
|
|
|
|
enum exclusive_operation {
|
|
BTRFS_EXCLOP_NONE,
|
|
BTRFS_EXCLOP_BALANCE,
|
|
BTRFS_EXCLOP_DEV_ADD,
|
|
BTRFS_EXCLOP_DEV_REMOVE,
|
|
BTRFS_EXCLOP_DEV_REPLACE,
|
|
BTRFS_EXCLOP_RESIZE,
|
|
BTRFS_EXCLOP_SWAP_ACTIVATE,
|
|
BTRFS_EXCLOP_UNKNOWN = -1,
|
|
};
|
|
|
|
void units_set_mode(unsigned *units, unsigned mode);
|
|
void units_set_base(unsigned *units, unsigned base);
|
|
|
|
int btrfs_make_root_dir(struct btrfs_trans_handle *trans,
|
|
struct btrfs_root *root, u64 objectid);
|
|
int check_mounted(const char *devicename);
|
|
int check_mounted_where(int fd, const char *file, char *where, int size,
|
|
struct btrfs_fs_devices **fs_devices_mnt, unsigned sbflags);
|
|
|
|
int pretty_size_snprintf(u64 size, char *str, size_t str_bytes, unsigned unit_mode);
|
|
#define pretty_size(size) pretty_size_mode(size, UNITS_DEFAULT)
|
|
const char *pretty_size_mode(u64 size, unsigned mode);
|
|
|
|
enum btrfs_csum_type parse_csum_type(const char *s);
|
|
u64 parse_size(const char *s);
|
|
u64 parse_qgroupid(const char *p);
|
|
u64 arg_strtou64(const char *str);
|
|
int open_file_or_dir(const char *fname, DIR **dirstream);
|
|
int open_file_or_dir3(const char *fname, DIR **dirstream, int open_flags);
|
|
void close_file_or_dir(int fd, DIR *dirstream);
|
|
int get_fs_info(const char *path, struct btrfs_ioctl_fs_info_args *fi_args,
|
|
struct btrfs_ioctl_dev_info_args **di_ret);
|
|
int get_fsid(const char *path, u8 *fsid, int silent);
|
|
int get_fsid_fd(int fd, u8 *fsid);
|
|
int get_fs_exclop(int fd);
|
|
int check_running_fs_exclop(int fd, enum exclusive_operation start, bool enqueue);
|
|
const char *get_fs_exclop_name(int op);
|
|
|
|
int get_label(const char *btrfs_dev, char *label);
|
|
int set_label(const char *btrfs_dev, const char *label);
|
|
|
|
int check_arg_type(const char *input);
|
|
int open_path_or_dev_mnt(const char *path, DIR **dirstream, int verbose);
|
|
int btrfs_open(const char *path, DIR **dirstream, int verbose, int dir_only);
|
|
int btrfs_open_dir(const char *path, DIR **dirstream, int verbose);
|
|
int btrfs_open_file_or_dir(const char *path, DIR **dirstream, int verbose);
|
|
int get_label_mounted(const char *mount_path, char *labelp);
|
|
int get_label_unmounted(const char *dev, char *label);
|
|
int group_profile_max_safe_loss(u64 flags);
|
|
int csum_tree_block(struct btrfs_fs_info *root, struct extent_buffer *buf,
|
|
int verify);
|
|
int ask_user(const char *question);
|
|
int lookup_path_rootid(int fd, u64 *rootid);
|
|
int get_btrfs_mount(const char *dev, char *mp, size_t mp_size);
|
|
int find_mount_fsroot(const char *subvol, const char *subvolid, char **mount);
|
|
int find_mount_root(const char *path, char **mount_root);
|
|
int get_device_info(int fd, u64 devid,
|
|
struct btrfs_ioctl_dev_info_args *di_args);
|
|
int get_df(int fd, struct btrfs_ioctl_space_args **sargs_ret);
|
|
int test_uuid_unique(char *fs_uuid);
|
|
|
|
const char *subvol_strip_mountpoint(const char *mnt, const char *full_path);
|
|
int find_next_key(struct btrfs_path *path, struct btrfs_key *key);
|
|
const char* btrfs_group_type_str(u64 flag);
|
|
const char* btrfs_group_profile_str(u64 flag);
|
|
|
|
int count_digits(u64 num);
|
|
u64 div_factor(u64 num, int factor);
|
|
|
|
int btrfs_tree_search2_ioctl_supported(int fd);
|
|
|
|
unsigned int get_unit_mode_from_arg(int *argc, char *argv[], int df_mode);
|
|
int string_is_numerical(const char *str);
|
|
int prefixcmp(const char *str, const char *prefix);
|
|
|
|
unsigned long total_memory(void);
|
|
|
|
void print_device_info(struct btrfs_device *device, char *prefix);
|
|
void print_all_devices(struct list_head *devices);
|
|
|
|
#define BTRFS_BCONF_UNSET -1
|
|
#define BTRFS_BCONF_QUIET 0
|
|
/*
|
|
* Global program state, configurable by command line and available to
|
|
* functions without extra context passing.
|
|
*/
|
|
struct btrfs_config {
|
|
unsigned int output_format;
|
|
|
|
/*
|
|
* Values:
|
|
* BTRFS_BCONF_QUIET
|
|
* BTRFS_BCONF_UNSET
|
|
* > 0: verbose level
|
|
*/
|
|
int verbose;
|
|
};
|
|
extern struct btrfs_config bconf;
|
|
|
|
void btrfs_config_init(void);
|
|
void bconf_be_verbose(void);
|
|
void bconf_be_quiet(void);
|
|
|
|
/* Pseudo random number generator wrappers */
|
|
int rand_int(void);
|
|
u8 rand_u8(void);
|
|
u16 rand_u16(void);
|
|
u32 rand_u32(void);
|
|
u64 rand_u64(void);
|
|
unsigned int rand_range(unsigned int upper);
|
|
void init_rand_seed(u64 seed);
|
|
|
|
char *btrfs_test_for_multiple_profiles(int fd);
|
|
int btrfs_warn_multiple_profiles(int fd);
|
|
|
|
int sysfs_open_fsid_file(int fd, const char *filename);
|
|
int sysfs_read_file(int fd, char *buf, size_t size);
|
|
|
|
#endif
|