#ifndef __UTILS__
#define __UTILS__
+#include <sys/stat.h>
+#include "ctree.h"
+#include <dirent.h>
+
#define BTRFS_MKFS_SYSTEM_GROUP_SIZE (4 * 1024 * 1024)
+#define BTRFS_MKFS_SMALL_VOLUME_SIZE (1024 * 1024 * 1024)
+
+#define BTRFS_SCAN_MOUNTED (1ULL << 0)
+#define BTRFS_SCAN_LBLKID (1ULL << 1)
+
+#define BTRFS_UPDATE_KERNEL 1
+
+#define BTRFS_ARG_UNKNOWN 0
+#define BTRFS_ARG_MNTPOINT 1
+#define BTRFS_ARG_UUID 2
+#define BTRFS_ARG_BLKDEV 3
+
+#define BTRFS_UUID_UNPARSED_SIZE 37
+
+#define ARGV0_BUF_SIZE 64
+
+int check_argc_exact(int nargs, int expected);
+int check_argc_min(int nargs, int expected);
+int check_argc_max(int nargs, int expected);
+
+void fixup_argv0(char **argv, const char *token);
+void set_argv0(char **argv);
+
+/*
+ * 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)
+#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)
+
+void units_set_mode(unsigned *units, unsigned mode);
+void units_set_base(unsigned *units, unsigned base);
int make_btrfs(int fd, const char *device, const char *label,
- u64 blocks[6], u64 num_bytes, u32 nodesize,
- u32 leafsize, u32 sectorsize, u32 stripesize);
+ char *fs_uuid, u64 blocks[6], u64 num_bytes, u32 nodesize,
+ u32 leafsize, u32 sectorsize, u32 stripesize, u64 features);
int btrfs_make_root_dir(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 objectid);
-int btrfs_prepare_device(int fd, char *file, int zero_end,
- u64 *block_count_ret);
+int btrfs_prepare_device(int fd, char *file, int zero_end, u64 *block_count_ret,
+ u64 max_block_count, int *mixed, int discard);
int btrfs_add_to_fsid(struct btrfs_trans_handle *trans,
struct btrfs_root *root, int fd, char *path,
u64 block_count, u32 io_width, u32 io_align,
u32 sectorsize);
-int btrfs_scan_for_fsid(struct btrfs_fs_devices *fs_devices, u64 total_devs,
- int run_ioctls);
-int btrfs_register_one_device(char *fname);
-int btrfs_scan_one_dir(char *dirname, int run_ioctl);
-int check_mounted(char *devicename);
+int btrfs_scan_for_fsid(int run_ioctls);
+void btrfs_register_one_device(char *fname);
+char *canonicalize_dm_name(const char *ptname);
+char *canonicalize_path(const char *path);
+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);
int btrfs_device_already_in_root(struct btrfs_root *root, int fd,
int super_offset);
-char *pretty_sizes(u64 size);
+
+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)
+#define pretty_size_mode(size, mode) \
+ ({ \
+ static __thread char _str[32]; \
+ (void)pretty_size_snprintf((size), _str, sizeof(_str), (mode)); \
+ _str; \
+ })
+
+int get_mountpt(char *dev, char *mntpt, size_t size);
+int btrfs_scan_block_devices(int run_ioctl);
+u64 parse_size(char *s);
+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(char *path, struct btrfs_ioctl_fs_info_args *fi_args,
+ struct btrfs_ioctl_dev_info_args **di_ret);
+int get_label(const char *btrfs_dev, char *label);
+int set_label(const char *btrfs_dev, const char *label);
+
+char *__strncpy__null(char *dest, const char *src, size_t n);
+int is_block_device(const char *file);
+int is_mount_point(const char *file);
+int open_path_or_dev_mnt(const char *path, DIR **dirstream);
+u64 btrfs_device_size(int fd, struct stat *st);
+/* Helper to always get proper size of the destination string */
+#define strncpy_null(dest, src) __strncpy__null(dest, src, sizeof(dest))
+int test_dev_for_mkfs(char *file, int force_overwrite, char *estr);
+int get_label_mounted(const char *mount_path, char *labelp);
+int test_num_disk_vs_raid(u64 metadata_profile, u64 data_profile,
+ u64 dev_cnt, int mixed, char *estr);
+int is_vol_small(char *file);
+int csum_tree_block(struct btrfs_root *root, struct extent_buffer *buf,
+ int verify);
+int ask_user(char *question);
+int lookup_ino_rootid(int fd, u64 *rootid);
+int btrfs_scan_lblkid(int update_kernel);
+int get_btrfs_mount(const char *dev, char *mp, size_t mp_size);
+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 test_uuid_unique(char *fs_uuid);
+
+int test_minimum_size(const char *file, u32 leafsize);
+int test_issubvolname(const char *name);
+int test_isdir(const char *path);
+
+/*
+ * Btrfs minimum size calculation is complicated, it should include at least:
+ * 1. system group size
+ * 2. minimum global block reserve
+ * 3. metadata used at mkfs
+ * 4. space reservation to create uuid for first mount.
+ * Also, raid factor should also be taken into consideration.
+ * To avoid the overkill calculation, (system group + global block rsv) * 2
+ * for *EACH* device should be good enough.
+ */
+static inline u64 btrfs_min_global_blk_rsv_size(u32 leafsize)
+{
+ return leafsize << 10;
+}
+static inline u64 btrfs_min_dev_size(u32 leafsize)
+{
+ return 2 * (BTRFS_MKFS_SYSTEM_GROUP_SIZE +
+ btrfs_min_global_blk_rsv_size(leafsize));
+}
+
+int find_next_key(struct btrfs_path *path, struct btrfs_key *key);
+
#endif
projects / platform / upstream / btrfs-progs.git / blobdiff