64 	struct idmap *idmap;  member
67 struct idmap {  struct
75 static struct user_namespace *idmap_userns(const struct idmap *idmap)  in idmap_userns()  argument
77 	if (idmap && idmap->cred)  in idmap_userns()
78 		return idmap->cred->user_ns;  in idmap_userns()
279 					 const char *type, struct idmap *idmap)  in nfs_idmap_request_key()  argument
289 	if (!idmap->cred || idmap->cred->user_ns == &init_user_ns)  in nfs_idmap_request_key()
292 		mutex_lock(&idmap->idmap_mutex);  in nfs_idmap_request_key()
294 						desc, NULL, "", 0, idmap);  in nfs_idmap_request_key()
295 		mutex_unlock(&idmap->idmap_mutex);  in nfs_idmap_request_key()
306 				 size_t data_size, struct idmap *idmap)  in nfs_idmap_get_key()  argument
314 	rkey = nfs_idmap_request_key(name, namelen, type, idmap);  in nfs_idmap_get_key()
350 				     size_t buflen, struct idmap *idmap)  in nfs_idmap_lookup_name()  argument
357 	ret = nfs_idmap_get_key(id_str, id_len, type, buf, buflen, idmap);  in nfs_idmap_lookup_name()
365 			       __u32 *id, struct idmap *idmap)  in nfs_idmap_lookup_id()  argument
372 	data_size = nfs_idmap_get_key(name, namelen, type, id_str, NFS_UINT_MAXLEN, idmap);  in nfs_idmap_lookup_id()
425 	struct idmap *idmap = pdo->pdo_data;  in nfs_idmap_pipe_destroy()  local
426 	struct rpc_pipe *pipe = idmap->idmap_pipe;  in nfs_idmap_pipe_destroy()
437 	struct idmap *idmap = pdo->pdo_data;  in nfs_idmap_pipe_create()  local
438 	struct rpc_pipe *pipe = idmap->idmap_pipe;  in nfs_idmap_pipe_create()
441 	dentry = rpc_mkpipe_dentry(dir, "idmap", idmap, pipe);  in nfs_idmap_pipe_create()
456 	struct idmap *idmap;  in nfs_idmap_new()  local
460 	idmap = kzalloc(sizeof(*idmap), GFP_KERNEL);  in nfs_idmap_new()
461 	if (idmap == NULL)  in nfs_idmap_new()
464 	mutex_init(&idmap->idmap_mutex);  in nfs_idmap_new()
465 	idmap->cred = get_cred(clp->cl_rpcclient->cl_cred);  in nfs_idmap_new()
467 	rpc_init_pipe_dir_object(&idmap->idmap_pdo,  in nfs_idmap_new()
469 			idmap);  in nfs_idmap_new()
476 	idmap->idmap_pipe = pipe;  in nfs_idmap_new()
480 			&idmap->idmap_pdo);  in nfs_idmap_new()
484 	clp->cl_idmap = idmap;  in nfs_idmap_new()
487 	rpc_destroy_pipe_data(idmap->idmap_pipe);  in nfs_idmap_new()
489 	put_cred(idmap->cred);  in nfs_idmap_new()
490 	kfree(idmap);  in nfs_idmap_new()
497 	struct idmap *idmap = clp->cl_idmap;  in nfs_idmap_delete()  local
499 	if (!idmap)  in nfs_idmap_delete()
504 			&idmap->idmap_pdo);  in nfs_idmap_delete()
505 	rpc_destroy_pipe_data(idmap->idmap_pipe);  in nfs_idmap_delete()
506 	put_cred(idmap->cred);  in nfs_idmap_delete()
507 	kfree(idmap);  in nfs_idmap_delete()
510 static int nfs_idmap_prepare_message(char *desc, struct idmap *idmap,  in nfs_idmap_prepare_message()  argument
552 nfs_idmap_prepare_pipe_upcall(struct idmap *idmap,  in nfs_idmap_prepare_pipe_upcall()  argument
555 	if (idmap->idmap_upcall_data != NULL) {  in nfs_idmap_prepare_pipe_upcall()
559 	idmap->idmap_upcall_data = data;  in nfs_idmap_prepare_pipe_upcall()
564 nfs_idmap_complete_pipe_upcall_locked(struct idmap *idmap, int ret)  in nfs_idmap_complete_pipe_upcall_locked()  argument
566 	struct key *authkey = idmap->idmap_upcall_data->authkey;  in nfs_idmap_complete_pipe_upcall_locked()
568 	kfree(idmap->idmap_upcall_data);  in nfs_idmap_complete_pipe_upcall_locked()
569 	idmap->idmap_upcall_data = NULL;  in nfs_idmap_complete_pipe_upcall_locked()
575 nfs_idmap_abort_pipe_upcall(struct idmap *idmap, int ret)  in nfs_idmap_abort_pipe_upcall()  argument
577 	if (idmap->idmap_upcall_data != NULL)  in nfs_idmap_abort_pipe_upcall()
578 		nfs_idmap_complete_pipe_upcall_locked(idmap, ret);  in nfs_idmap_abort_pipe_upcall()
587 	struct idmap *idmap = (struct idmap *)aux;  in nfs_idmap_legacy_upcall()  local
602 	data->idmap = idmap;  in nfs_idmap_legacy_upcall()
605 	ret = nfs_idmap_prepare_message(key->description, idmap, im, msg);  in nfs_idmap_legacy_upcall()
610 	if (!nfs_idmap_prepare_pipe_upcall(idmap, data))  in nfs_idmap_legacy_upcall()
613 	ret = rpc_queue_upcall(idmap->idmap_pipe, msg);  in nfs_idmap_legacy_upcall()
615 		nfs_idmap_abort_pipe_upcall(idmap, ret);  in nfs_idmap_legacy_upcall()
670 	struct idmap *idmap = (struct idmap *)rpci->private;  in idmap_pipe_downcall()  local
680 	if (idmap->idmap_upcall_data == NULL)  in idmap_pipe_downcall()
683 	authkey = idmap->idmap_upcall_data->authkey;  in idmap_pipe_downcall()
708 			&idmap->idmap_upcall_data->idmap_msg,  in idmap_pipe_downcall()
716 	nfs_idmap_complete_pipe_upcall_locked(idmap, ret);  in idmap_pipe_downcall()
727 	struct idmap *idmap = data->idmap;  in idmap_pipe_destroy_msg()  local
730 		nfs_idmap_abort_pipe_upcall(idmap, msg->errno);  in idmap_pipe_destroy_msg()
737 	struct idmap *idmap = (struct idmap *)rpci->private;  in idmap_release_pipe()  local
739 	nfs_idmap_abort_pipe_upcall(idmap, -EPIPE);  in idmap_release_pipe()
744 	struct idmap *idmap = server->nfs_client->cl_idmap;  in nfs_map_name_to_uid()  local
749 		ret = nfs_idmap_lookup_id(name, namelen, "uid", &id, idmap);  in nfs_map_name_to_uid()
751 		*uid = make_kuid(idmap_userns(idmap), id);  in nfs_map_name_to_uid()
761 	struct idmap *idmap = server->nfs_client->cl_idmap;  in nfs_map_group_to_gid()  local
766 		ret = nfs_idmap_lookup_id(name, namelen, "gid", &id, idmap);  in nfs_map_group_to_gid()
768 		*gid = make_kgid(idmap_userns(idmap), id);  in nfs_map_group_to_gid()
778 	struct idmap *idmap = server->nfs_client->cl_idmap;  in nfs_map_uid_to_name()  local
782 	id = from_kuid_munged(idmap_userns(idmap), uid);  in nfs_map_uid_to_name()
784 		ret = nfs_idmap_lookup_name(id, "user", buf, buflen, idmap);  in nfs_map_uid_to_name()
792 	struct idmap *idmap = server->nfs_client->cl_idmap;  in nfs_map_gid_to_group()  local
796 	id = from_kgid_munged(idmap_userns(idmap), gid);  in nfs_map_gid_to_group()
798 		ret = nfs_idmap_lookup_name(id, "group", buf, buflen, idmap);  in nfs_map_gid_to_group()