159 lines
4.7 KiB
C
159 lines
4.7 KiB
C
/* C wrappers around some zfs calls and C in general that should simplify
|
|
* using libzfs from go language, make go code shorter and more readable.
|
|
*/
|
|
|
|
#ifndef SERVERWARE_ZFS_H
|
|
#define SERVERWARE_ZFS_H
|
|
|
|
struct dataset_list {
|
|
zfs_handle_t *zh;
|
|
void *pnext;
|
|
};
|
|
|
|
typedef struct zfs_share {
|
|
uint64_t z_exportdata;
|
|
uint64_t z_sharedata;
|
|
uint64_t z_sharetype; /* 0 = share, 1 = unshare */
|
|
uint64_t z_sharemax; /* max length of share string */
|
|
} zfs_share_t;
|
|
|
|
struct drr_begin {
|
|
uint64_t drr_magic;
|
|
uint64_t drr_versioninfo; /* was drr_version */
|
|
uint64_t drr_creation_time;
|
|
dmu_objset_type_t drr_type;
|
|
uint32_t drr_flags;
|
|
uint64_t drr_toguid;
|
|
uint64_t drr_fromguid;
|
|
char drr_toname[MAXNAMELEN];
|
|
} drr_begin;
|
|
|
|
/*
|
|
* A limited number of zpl level stats are retrievable
|
|
* with an ioctl. zfs diff is the current consumer.
|
|
*/
|
|
typedef struct zfs_stat {
|
|
uint64_t zs_gen;
|
|
uint64_t zs_mode;
|
|
uint64_t zs_links;
|
|
uint64_t zs_ctime[2];
|
|
} zfs_stat_t;
|
|
|
|
typedef struct zinject_record {
|
|
uint64_t zi_objset;
|
|
uint64_t zi_object;
|
|
uint64_t zi_start;
|
|
uint64_t zi_end;
|
|
uint64_t zi_guid;
|
|
uint32_t zi_level;
|
|
uint32_t zi_error;
|
|
uint64_t zi_type;
|
|
uint32_t zi_freq;
|
|
uint32_t zi_failfast;
|
|
char zi_func[MAXNAMELEN];
|
|
uint32_t zi_iotype;
|
|
int32_t zi_duration;
|
|
uint64_t zi_timer;
|
|
uint64_t zi_nlanes;
|
|
uint32_t zi_cmd;
|
|
uint32_t zi_pad;
|
|
} zinject_record_t;
|
|
|
|
typedef struct dmu_objset_stats {
|
|
uint64_t dds_num_clones; /* number of clones of this */
|
|
uint64_t dds_creation_txg;
|
|
uint64_t dds_guid;
|
|
dmu_objset_type_t dds_type;
|
|
uint8_t dds_is_snapshot;
|
|
uint8_t dds_inconsistent;
|
|
char dds_origin[ZFS_MAX_DATASET_NAME_LEN];
|
|
} dmu_objset_stats_t;
|
|
|
|
typedef struct zfs_cmd {
|
|
char zc_name[MAXPATHLEN]; /* name of pool or dataset */
|
|
uint64_t zc_nvlist_src; /* really (char *) */
|
|
uint64_t zc_nvlist_src_size;
|
|
uint64_t zc_nvlist_dst; /* really (char *) */
|
|
uint64_t zc_nvlist_dst_size;
|
|
boolean_t zc_nvlist_dst_filled; /* put an nvlist in dst? */
|
|
int zc_pad2;
|
|
|
|
/*
|
|
* The following members are for legacy ioctls which haven't been
|
|
* converted to the new method.
|
|
*/
|
|
uint64_t zc_history; /* really (char *) */
|
|
char zc_value[MAXPATHLEN * 2];
|
|
char zc_string[MAXNAMELEN];
|
|
uint64_t zc_guid;
|
|
uint64_t zc_nvlist_conf; /* really (char *) */
|
|
uint64_t zc_nvlist_conf_size;
|
|
uint64_t zc_cookie;
|
|
uint64_t zc_objset_type;
|
|
uint64_t zc_perm_action;
|
|
uint64_t zc_history_len;
|
|
uint64_t zc_history_offset;
|
|
uint64_t zc_obj;
|
|
uint64_t zc_iflags; /* internal to zfs(7fs) */
|
|
zfs_share_t zc_share;
|
|
dmu_objset_stats_t zc_objset_stats;
|
|
struct drr_begin zc_begin_record;
|
|
zinject_record_t zc_inject_record;
|
|
uint32_t zc_defer_destroy;
|
|
uint32_t zc_flags;
|
|
uint64_t zc_action_handle;
|
|
int zc_cleanup_fd;
|
|
uint8_t zc_simple;
|
|
uint8_t zc_pad[3]; /* alignment */
|
|
uint64_t zc_sendobj;
|
|
uint64_t zc_fromobj;
|
|
uint64_t zc_createtxg;
|
|
zfs_stat_t zc_stat;
|
|
} zfs_cmd_t;
|
|
|
|
typedef struct dataset_list dataset_list_t;
|
|
typedef struct dataset_list* dataset_list_ptr;
|
|
|
|
|
|
dataset_list_t *create_dataset_list_item();
|
|
void dataset_list_close(dataset_list_t *list);
|
|
void dataset_list_free(dataset_list_t *list);
|
|
|
|
dataset_list_t* dataset_list_root();
|
|
dataset_list_t* dataset_list_children(dataset_list_t *dataset);
|
|
dataset_list_t *dataset_next(dataset_list_t *dataset);
|
|
int dataset_type(dataset_list_ptr dataset);
|
|
|
|
dataset_list_ptr dataset_open(const char *path);
|
|
int dataset_create(const char *path, zfs_type_t type, nvlist_ptr props);
|
|
int dataset_destroy(dataset_list_ptr dataset, boolean_t defer);
|
|
zpool_list_ptr dataset_get_pool(dataset_list_ptr dataset);
|
|
int dataset_prop_set(dataset_list_ptr dataset, zfs_prop_t prop, const char *value);
|
|
int dataset_user_prop_set(dataset_list_ptr dataset, const char *prop, const char *value);
|
|
int dataset_clone(dataset_list_ptr dataset, const char *target, nvlist_ptr props);
|
|
int dataset_snapshot(const char *path, boolean_t recur, nvlist_ptr props);
|
|
int dataset_rollback(dataset_list_ptr dataset, dataset_list_ptr snapshot, boolean_t force);
|
|
int dataset_promote(dataset_list_ptr dataset);
|
|
int dataset_rename(dataset_list_ptr dataset, const char* new_name, boolean_t recur, boolean_t force_unm);
|
|
const char* dataset_is_mounted(dataset_list_ptr dataset);
|
|
int dataset_mount(dataset_list_ptr dataset, const char *options, int flags);
|
|
int dataset_unmount(dataset_list_ptr dataset, int flags);
|
|
int dataset_unmountall(dataset_list_ptr dataset, int flags);
|
|
const char *dataset_get_name(dataset_list_ptr ds);
|
|
|
|
property_list_t *read_dataset_property(dataset_list_t *dataset, int prop);
|
|
property_list_t *read_user_property(dataset_list_t *dataset, const char* prop);
|
|
|
|
char** alloc_cstrings(int size);
|
|
void strings_setat(char **a, int at, char *v);
|
|
|
|
sendflags_t *alloc_sendflags();
|
|
recvflags_t *alloc_recvflags();
|
|
|
|
|
|
struct zfs_cmd *new_zfs_cmd();
|
|
int estimate_send_size(struct zfs_cmd *zc);
|
|
|
|
#endif
|
|
/* SERVERWARE_ZFS_H */
|