blob: ee2aea54689008016a6519c31251dbf2bf853487 [file] [log] [blame]
/*
* Copyright (C) 2012 FUJITSU LIMITED. 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.
*/
#if BTRFS_FLAT_INCLUDES
#include "kerncompat.h"
#else
#include <btrfs/kerncompat.h>
#endif /* BTRFS_FLAT_INCLUDES */
#define BTRFS_LIST_LAYOUT_DEFAULT 0
#define BTRFS_LIST_LAYOUT_TABLE 1
#define BTRFS_LIST_LAYOUT_RAW 2
/*
* one of these for each root we find.
*/
struct root_info {
struct rb_node rb_node;
struct rb_node sort_node;
/* this root's id */
u64 root_id;
/* equal the offset of the root's key */
u64 root_offset;
/* flags of the root */
u64 flags;
/* the id of the root that references this one */
u64 ref_tree;
/* the dir id we're in from ref_tree */
u64 dir_id;
u64 top_id;
/* generation when the root is created or last updated */
u64 gen;
/* creation generation of this root in sec*/
u64 ogen;
/* creation time of this root in sec*/
time_t otime;
u8 uuid[BTRFS_UUID_SIZE];
u8 puuid[BTRFS_UUID_SIZE];
u8 ruuid[BTRFS_UUID_SIZE];
/* path from the subvol we live in to this root, including the
* root's name. This is null until we do the extra lookup ioctl.
*/
char *path;
/* the name of this root in the directory it lives in */
char *name;
char *full_path;
int deleted;
};
typedef int (*btrfs_list_filter_func)(struct root_info *, u64);
typedef int (*btrfs_list_comp_func)(struct root_info *, struct root_info *,
int);
struct btrfs_list_filter {
btrfs_list_filter_func filter_func;
u64 data;
};
struct btrfs_list_comparer {
btrfs_list_comp_func comp_func;
int is_descending;
};
struct btrfs_list_filter_set {
int total;
int nfilters;
int only_deleted;
struct btrfs_list_filter filters[0];
};
struct btrfs_list_comparer_set {
int total;
int ncomps;
struct btrfs_list_comparer comps[0];
};
enum btrfs_list_column_enum {
BTRFS_LIST_OBJECTID,
BTRFS_LIST_GENERATION,
BTRFS_LIST_OGENERATION,
BTRFS_LIST_PARENT,
BTRFS_LIST_TOP_LEVEL,
BTRFS_LIST_OTIME,
BTRFS_LIST_PUUID,
BTRFS_LIST_RUUID,
BTRFS_LIST_UUID,
BTRFS_LIST_PATH,
BTRFS_LIST_ALL,
};
enum btrfs_list_filter_enum {
BTRFS_LIST_FILTER_ROOTID,
BTRFS_LIST_FILTER_SNAPSHOT_ONLY,
BTRFS_LIST_FILTER_FLAGS,
BTRFS_LIST_FILTER_GEN,
BTRFS_LIST_FILTER_GEN_EQUAL = BTRFS_LIST_FILTER_GEN,
BTRFS_LIST_FILTER_GEN_LESS,
BTRFS_LIST_FILTER_GEN_MORE,
BTRFS_LIST_FILTER_CGEN,
BTRFS_LIST_FILTER_CGEN_EQUAL = BTRFS_LIST_FILTER_CGEN,
BTRFS_LIST_FILTER_CGEN_LESS,
BTRFS_LIST_FILTER_CGEN_MORE,
BTRFS_LIST_FILTER_TOPID_EQUAL,
BTRFS_LIST_FILTER_FULL_PATH,
BTRFS_LIST_FILTER_BY_PARENT,
BTRFS_LIST_FILTER_DELETED,
BTRFS_LIST_FILTER_MAX,
};
enum btrfs_list_comp_enum {
BTRFS_LIST_COMP_ROOTID,
BTRFS_LIST_COMP_OGEN,
BTRFS_LIST_COMP_GEN,
BTRFS_LIST_COMP_PATH,
BTRFS_LIST_COMP_MAX,
};
int btrfs_list_parse_sort_string(char *optarg,
struct btrfs_list_comparer_set **comps);
int btrfs_list_parse_filter_string(char *optarg,
struct btrfs_list_filter_set **filters,
enum btrfs_list_filter_enum type);
void btrfs_list_setup_print_column(enum btrfs_list_column_enum column);
struct btrfs_list_filter_set *btrfs_list_alloc_filter_set(void);
void btrfs_list_free_filter_set(struct btrfs_list_filter_set *filter_set);
int btrfs_list_setup_filter(struct btrfs_list_filter_set **filter_set,
enum btrfs_list_filter_enum filter, u64 data);
struct btrfs_list_comparer_set *btrfs_list_alloc_comparer_set(void);
void btrfs_list_free_comparer_set(struct btrfs_list_comparer_set *comp_set);
int btrfs_list_subvols_print(int fd, struct btrfs_list_filter_set *filter_set,
struct btrfs_list_comparer_set *comp_set,
int is_tab_result, int full_path, char *raw_prefix);
int btrfs_list_find_updated_files(int fd, u64 root_id, u64 oldest_gen);
int btrfs_list_get_default_subvolume(int fd, u64 *default_id);
char *btrfs_list_path_for_root(int fd, u64 root);
int btrfs_list_get_path_rootid(int fd, u64 *treeid);
int btrfs_get_subvol(int fd, struct root_info *the_ri);