/* Copyright (c) 2006-2010 Gluster, Inc. This file is part of GlusterFS. GlusterFS is free software; you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. GlusterFS 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 Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program. If not, see . */ #ifndef _XLATOR_H #define _XLATOR_H #ifndef _CONFIG_H #define _CONFIG_H #include "config.h" #endif #include #include #include #include "logging.h" #include "common-utils.h" #include "dict.h" #include "compat.h" #include "list.h" #include "latency.h" #define FIRST_CHILD(xl) (xl->children->xlator) #define GF_SET_ATTR_MODE 0x1 #define GF_SET_ATTR_UID 0x2 #define GF_SET_ATTR_GID 0x4 #define GF_SET_ATTR_SIZE 0x8 #define GF_SET_ATTR_ATIME 0x10 #define GF_SET_ATTR_MTIME 0x20 #define gf_attr_mode_set(mode) ((mode) & GF_SET_ATTR_MODE) #define gf_attr_uid_set(mode) ((mode) & GF_SET_ATTR_UID) #define gf_attr_gid_set(mode) ((mode) & GF_SET_ATTR_GID) #define gf_attr_size_set(mode) ((mode) & GF_SET_ATTR_SIZE) #define gf_attr_atime_set(mode) ((mode) & GF_SET_ATTR_ATIME) #define gf_attr_mtime_set(mode) ((mode) & GF_SET_ATTR_MTIME) struct _xlator; typedef struct _xlator xlator_t; struct _dir_entry_t; typedef struct _dir_entry_t dir_entry_t; struct _gf_dirent_t; typedef struct _gf_dirent_t gf_dirent_t; struct _loc; typedef struct _loc loc_t; typedef int32_t (*event_notify_fn_t) (xlator_t *this, int32_t event, void *data, ...); #include "list.h" #include "gf-dirent.h" #include "stack.h" #include "iobuf.h" #include "inode.h" #include "fd.h" #include "globals.h" #include "iatt.h" struct _loc { const char *path; const char *name; ino_t ino; inode_t *inode; inode_t *parent; }; typedef int32_t (*fop_getspec_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, char *spec_data); typedef int32_t (*fop_rchecksum_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, uint32_t weak_checksum, uint8_t *strong_checksum); typedef int32_t (*fop_getspec_t) (call_frame_t *frame, xlator_t *this, const char *key, int32_t flag); typedef int32_t (*fop_rchecksum_t) (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset, int32_t len); typedef int32_t (*fop_lookup_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, inode_t *inode, struct iatt *buf, dict_t *xattr, struct iatt *postparent); typedef int32_t (*fop_stat_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, struct iatt *buf); typedef int32_t (*fop_fstat_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, struct iatt *buf); typedef int32_t (*fop_truncate_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, struct iatt *prebuf, struct iatt *postbuf); typedef int32_t (*fop_ftruncate_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, struct iatt *prebuf, struct iatt *postbuf); typedef int32_t (*fop_access_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno); typedef int32_t (*fop_readlink_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, const char *path, struct iatt *buf); typedef int32_t (*fop_mknod_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, inode_t *inode, struct iatt *buf, struct iatt *preparent, struct iatt *postparent); typedef int32_t (*fop_mkdir_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, inode_t *inode, struct iatt *buf, struct iatt *preparent, struct iatt *postparent); typedef int32_t (*fop_unlink_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, struct iatt *preparent, struct iatt *postparent); typedef int32_t (*fop_rmdir_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, struct iatt *preparent, struct iatt *postparent); typedef int32_t (*fop_symlink_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, inode_t *inode, struct iatt *buf, struct iatt *preparent, struct iatt *postparent); typedef int32_t (*fop_rename_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, struct iatt *buf, struct iatt *preoldparent, struct iatt *postoldparent, struct iatt *prenewparent, struct iatt *postnewparent); typedef int32_t (*fop_link_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, inode_t *inode, struct iatt *buf, struct iatt *preparent, struct iatt *postparent); typedef int32_t (*fop_create_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, fd_t *fd, inode_t *inode, struct iatt *buf, struct iatt *preparent, struct iatt *postparent); typedef int32_t (*fop_open_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, fd_t *fd); typedef int32_t (*fop_readv_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, struct iovec *vector, int32_t count, struct iatt *stbuf, struct iobref *iobref); typedef int32_t (*fop_writev_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, struct iatt *prebuf, struct iatt *postbuf); typedef int32_t (*fop_flush_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno); typedef int32_t (*fop_fsync_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, struct iatt *prebuf, struct iatt *postbuf); typedef int32_t (*fop_opendir_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, fd_t *fd); typedef int32_t (*fop_fsyncdir_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno); typedef int32_t (*fop_statfs_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, struct statvfs *buf); typedef int32_t (*fop_setxattr_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno); typedef int32_t (*fop_getxattr_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, dict_t *dict); typedef int32_t (*fop_fsetxattr_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno); typedef int32_t (*fop_fgetxattr_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, dict_t *dict); typedef int32_t (*fop_removexattr_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno); typedef int32_t (*fop_lk_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, struct gf_flock *flock); typedef int32_t (*fop_inodelk_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno); typedef int32_t (*fop_finodelk_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno); typedef int32_t (*fop_entrylk_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno); typedef int32_t (*fop_fentrylk_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno); typedef int32_t (*fop_readdir_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, gf_dirent_t *entries); typedef int32_t (*fop_readdirp_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, gf_dirent_t *entries); typedef int32_t (*fop_xattrop_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, dict_t *xattr); typedef int32_t (*fop_fxattrop_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, dict_t *xattr); typedef int32_t (*fop_setattr_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, struct iatt *preop_stbuf, struct iatt *postop_stbuf); typedef int32_t (*fop_fsetattr_cbk_t) (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, struct iatt *preop_stbuf, struct iatt *postop_stbuf); typedef int32_t (*fop_lookup_t) (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xattr_req); typedef int32_t (*fop_stat_t) (call_frame_t *frame, xlator_t *this, loc_t *loc); typedef int32_t (*fop_fstat_t) (call_frame_t *frame, xlator_t *this, fd_t *fd); typedef int32_t (*fop_truncate_t) (call_frame_t *frame, xlator_t *this, loc_t *loc, off_t offset); typedef int32_t (*fop_ftruncate_t) (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset); typedef int32_t (*fop_access_t) (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t mask); typedef int32_t (*fop_readlink_t) (call_frame_t *frame, xlator_t *this, loc_t *loc, size_t size); typedef int32_t (*fop_mknod_t) (call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode, dev_t rdev, dict_t *params); typedef int32_t (*fop_mkdir_t) (call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode, dict_t *params); typedef int32_t (*fop_unlink_t) (call_frame_t *frame, xlator_t *this, loc_t *loc); typedef int32_t (*fop_rmdir_t) (call_frame_t *frame, xlator_t *this, loc_t *loc, int flags); typedef int32_t (*fop_symlink_t) (call_frame_t *frame, xlator_t *this, const char *linkname, loc_t *loc, dict_t *params); typedef int32_t (*fop_rename_t) (call_frame_t *frame, xlator_t *this, loc_t *oldloc, loc_t *newloc); typedef int32_t (*fop_link_t) (call_frame_t *frame, xlator_t *this, loc_t *oldloc, loc_t *newloc); typedef int32_t (*fop_create_t) (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags, mode_t mode, fd_t *fd, dict_t *params); /* Tell subsequent writes on the fd_t to fsync after every writev fop without * requiring a fsync fop. */ #define GF_OPEN_FSYNC 0x01 /* Tell write-behind to disable writing behind despite O_SYNC not being set. */ #define GF_OPEN_NOWB 0x02 typedef int32_t (*fop_open_t) (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags, fd_t *fd, int32_t wbflags); typedef int32_t (*fop_readv_t) (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, off_t offset); typedef int32_t (*fop_writev_t) (call_frame_t *frame, xlator_t *this, fd_t *fd, struct iovec *vector, int32_t count, off_t offset, struct iobref *iobref); typedef int32_t (*fop_flush_t) (call_frame_t *frame, xlator_t *this, fd_t *fd); typedef int32_t (*fop_fsync_t) (call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t datasync); typedef int32_t (*fop_opendir_t) (call_frame_t *frame, xlator_t *this, loc_t *loc, fd_t *fd); typedef int32_t (*fop_fsyncdir_t) (call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t datasync); typedef int32_t (*fop_statfs_t) (call_frame_t *frame, xlator_t *this, loc_t *loc); typedef int32_t (*fop_setxattr_t) (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *dict, int32_t flags); typedef int32_t (*fop_getxattr_t) (call_frame_t *frame, xlator_t *this, loc_t *loc, const char *name); typedef int32_t (*fop_fsetxattr_t) (call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *dict, int32_t flags); typedef int32_t (*fop_fgetxattr_t) (call_frame_t *frame, xlator_t *this, fd_t *fd, const char *name); typedef int32_t (*fop_removexattr_t) (call_frame_t *frame, xlator_t *this, loc_t *loc, const char *name); typedef int32_t (*fop_lk_t) (call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t cmd, struct gf_flock *flock); typedef int32_t (*fop_inodelk_t) (call_frame_t *frame, xlator_t *this, const char *volume, loc_t *loc, int32_t cmd, struct gf_flock *flock); typedef int32_t (*fop_finodelk_t) (call_frame_t *frame, xlator_t *this, const char *volume, fd_t *fd, int32_t cmd, struct gf_flock *flock); typedef int32_t (*fop_entrylk_t) (call_frame_t *frame, xlator_t *this, const char *volume, loc_t *loc, const char *basename, entrylk_cmd cmd, entrylk_type type); typedef int32_t (*fop_fentrylk_t) (call_frame_t *frame, xlator_t *this, const char *volume, fd_t *fd, const char *basename, entrylk_cmd cmd, entrylk_type type); typedef int32_t (*fop_readdir_t) (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, off_t offset); typedef int32_t (*fop_readdirp_t) (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, off_t offset); typedef int32_t (*fop_xattrop_t) (call_frame_t *frame, xlator_t *this, loc_t *loc, gf_xattrop_flags_t optype, dict_t *xattr); typedef int32_t (*fop_fxattrop_t) (call_frame_t *frame, xlator_t *this, fd_t *fd, gf_xattrop_flags_t optype, dict_t *xattr); typedef int32_t (*fop_setattr_t) (call_frame_t *frame, xlator_t *this, loc_t *loc, struct iatt *stbuf, int32_t valid); typedef int32_t (*fop_fsetattr_t) (call_frame_t *frame, xlator_t *this, fd_t *fd, struct iatt *stbuf, int32_t valid); struct xlator_fops { fop_lookup_t lookup; fop_stat_t stat; fop_fstat_t fstat; fop_truncate_t truncate; fop_ftruncate_t ftruncate; fop_access_t access; fop_readlink_t readlink; fop_mknod_t mknod; fop_mkdir_t mkdir; fop_unlink_t unlink; fop_rmdir_t rmdir; fop_symlink_t symlink; fop_rename_t rename; fop_link_t link; fop_create_t create; fop_open_t open; fop_readv_t readv; fop_writev_t writev; fop_flush_t flush; fop_fsync_t fsync; fop_opendir_t opendir; fop_readdir_t readdir; fop_readdirp_t readdirp; fop_fsyncdir_t fsyncdir; fop_statfs_t statfs; fop_setxattr_t setxattr; fop_getxattr_t getxattr; fop_fsetxattr_t fsetxattr; fop_fgetxattr_t fgetxattr; fop_removexattr_t removexattr; fop_lk_t lk; fop_inodelk_t inodelk; fop_finodelk_t finodelk; fop_entrylk_t entrylk; fop_fentrylk_t fentrylk; fop_rchecksum_t rchecksum; fop_xattrop_t xattrop; fop_fxattrop_t fxattrop; fop_setattr_t setattr; fop_fsetattr_t fsetattr; fop_getspec_t getspec; /* these entries are used for a typechecking hack in STACK_WIND _only_ */ fop_lookup_cbk_t lookup_cbk; fop_stat_cbk_t stat_cbk; fop_fstat_cbk_t fstat_cbk; fop_truncate_cbk_t truncate_cbk; fop_ftruncate_cbk_t ftruncate_cbk; fop_access_cbk_t access_cbk; fop_readlink_cbk_t readlink_cbk; fop_mknod_cbk_t mknod_cbk; fop_mkdir_cbk_t mkdir_cbk; fop_unlink_cbk_t unlink_cbk; fop_rmdir_cbk_t rmdir_cbk; fop_symlink_cbk_t symlink_cbk; fop_rename_cbk_t rename_cbk; fop_link_cbk_t link_cbk; fop_create_cbk_t create_cbk; fop_open_cbk_t open_cbk; fop_readv_cbk_t readv_cbk; fop_writev_cbk_t writev_cbk; fop_flush_cbk_t flush_cbk; fop_fsync_cbk_t fsync_cbk; fop_opendir_cbk_t opendir_cbk; fop_readdir_cbk_t readdir_cbk; fop_readdirp_cbk_t readdirp_cbk; fop_fsyncdir_cbk_t fsyncdir_cbk; fop_statfs_cbk_t statfs_cbk; fop_setxattr_cbk_t setxattr_cbk; fop_getxattr_cbk_t getxattr_cbk; fop_fsetxattr_cbk_t fsetxattr_cbk; fop_fgetxattr_cbk_t fgetxattr_cbk; fop_removexattr_cbk_t removexattr_cbk; fop_lk_cbk_t lk_cbk; fop_inodelk_cbk_t inodelk_cbk; fop_finodelk_cbk_t finodelk_cbk; fop_entrylk_cbk_t entrylk_cbk; fop_fentrylk_cbk_t fentrylk_cbk; fop_rchecksum_cbk_t rchecksum_cbk; fop_xattrop_cbk_t xattrop_cbk; fop_fxattrop_cbk_t fxattrop_cbk; fop_setattr_cbk_t setattr_cbk; fop_fsetattr_cbk_t fsetattr_cbk; fop_getspec_cbk_t getspec_cbk; }; typedef int32_t (*cbk_forget_t) (xlator_t *this, inode_t *inode); typedef int32_t (*cbk_release_t) (xlator_t *this, fd_t *fd); struct xlator_cbks { cbk_forget_t forget; cbk_release_t release; cbk_release_t releasedir; }; typedef int32_t (*dumpop_priv_t) (xlator_t *this); typedef int32_t (*dumpop_inode_t) (xlator_t *this); typedef int32_t (*dumpop_fd_t) (xlator_t *this); typedef int32_t (*dumpop_inodectx_t) (xlator_t *this, inode_t *ino); typedef int32_t (*dumpop_fdctx_t) (xlator_t *this, fd_t *fd); struct xlator_dumpops { dumpop_priv_t priv; dumpop_inode_t inode; dumpop_fd_t fd; dumpop_inodectx_t inodectx; dumpop_fdctx_t fdctx; }; typedef struct xlator_list { xlator_t *xlator; struct xlator_list *next; } xlator_list_t; /* Add possible new type of option you may need */ typedef enum { GF_OPTION_TYPE_ANY = 0, GF_OPTION_TYPE_STR, GF_OPTION_TYPE_INT, GF_OPTION_TYPE_SIZET, GF_OPTION_TYPE_PERCENT, GF_OPTION_TYPE_PERCENT_OR_SIZET, GF_OPTION_TYPE_BOOL, GF_OPTION_TYPE_XLATOR, GF_OPTION_TYPE_PATH, GF_OPTION_TYPE_TIME, GF_OPTION_TYPE_DOUBLE, GF_OPTION_TYPE_INTERNET_ADDRESS, } volume_option_type_t; #define ZR_VOLUME_MAX_NUM_KEY 4 #define ZR_OPTION_MAX_ARRAY_SIZE 64 /* Each translator should define this structure */ typedef struct volume_options { char *key[ZR_VOLUME_MAX_NUM_KEY]; /* different key, same meaning */ volume_option_type_t type; int64_t min; /* 0 means no range */ int64_t max; /* 0 means no range */ char *value[ZR_OPTION_MAX_ARRAY_SIZE]; /* If specified, will check for one of the value from this array */ char *description; /* about the key */ } volume_option_t; typedef struct vol_opt_list { struct list_head list; volume_option_t *given_opt; } volume_opt_list_t; struct _xlator { /* Built during parsing */ char *name; char *type; xlator_t *next; xlator_t *prev; xlator_list_t *parents; xlator_list_t *children; dict_t *options; /* Set after doing dlopen() */ void *dlhandle; struct xlator_fops *fops; struct xlator_cbks *cbks; struct xlator_dumpops *dumpops; struct list_head volume_options; /* list of volume_option_t */ void (*fini) (xlator_t *this); int32_t (*init) (xlator_t *this); int32_t (*reconfigure) (xlator_t *this, dict_t *options); int32_t (*mem_acct_init) (xlator_t *this); int32_t (*validate_options) (xlator_t *this, char **op_errstr); event_notify_fn_t notify; gf_loglevel_t loglevel; /* Log level for translator */ /* for latency measurement */ fop_latency_t latencies[GF_FOP_MAXVALUE]; /* Misc */ glusterfs_ctx_t *ctx; glusterfs_graph_t *graph; /* not set for fuse */ inode_table_t *itable; char init_succeeded; void *private; struct mem_acct mem_acct; }; #define xlator_has_parent(xl) (xl->parents != NULL) int validate_xlator_volume_options (xlator_t *xl, volume_option_t *opt); int32_t xlator_set_type_virtual (xlator_t *xl, const char *type); int32_t xlator_set_type (xlator_t *xl, const char *type); int32_t xlator_dynload (xlator_t *xl); xlator_t *file_to_xlator_tree (glusterfs_ctx_t *ctx, FILE *fp); int xlator_notify (xlator_t *this, int32_t event, void *data, ...); int xlator_init (xlator_t *this); int xlator_destroy (xlator_t *xl); int32_t xlator_tree_init (xlator_t *xl); int32_t xlator_tree_free (xlator_t *xl); void xlator_tree_fini (xlator_t *xl); void xlator_foreach (xlator_t *this, void (*fn) (xlator_t *each, void *data), void *data); xlator_t *xlator_search_by_name (xlator_t *any, const char *name); void inode_destroy_notify (inode_t *inode, const char *xlname); int loc_copy (loc_t *dst, loc_t *src); #define loc_dup(src, dst) loc_copy(dst, src) void loc_wipe (loc_t *loc); int xlator_mem_acct_init (xlator_t *xl, int num_types); int xlator_tree_reconfigure (xlator_t *old_xl, xlator_t *new_xl); int is_gf_log_command (xlator_t *trans, const char *name, char *value); int xlator_validate_rec (xlator_t *xlator, char **op_errstr); int graph_reconf_validateopt (glusterfs_graph_t *graph, char **op_errstr); int glusterd_check_log_level (const char *value); int validate_xlator_volume_options_attacherr (xlator_t *xl, volume_option_t *opt, char **op_errstr); int _volume_option_value_validate_attacherr (xlator_t *xl, data_pair_t *pair, volume_option_t *opt, char **op_errstr); #endif /* _XLATOR_H */