24 	int rc;  in dfs_parse_target_referral()  local
45 	rc = smb3_parse_devname(path, ctx);  in dfs_parse_target_referral()
46 	if (rc)  in dfs_parse_target_referral()
49 	rc = dns_resolve_server_name_to_ip(path, (struct sockaddr *)&ctx->dstaddr, NULL);  in dfs_parse_target_referral()
53 	return rc;  in dfs_parse_target_referral()
59 	int rc;  in get_session()  local
62 	rc = cifs_mount_get_session(mnt_ctx);  in get_session()
65 	return rc;  in get_session()
89 	int rc;  in parse_dfs_target()  local
92 	rc = ref_walk_get_tgt(rw, tgt);  in parse_dfs_target()
93 	if (!rc)  in parse_dfs_target()
94 		rc = dfs_parse_target_referral(fpath, tgt, ctx);  in parse_dfs_target()
95 	return rc;  in parse_dfs_target()
105 	int rc;  in setup_dfs_ref()  local
117 		rc = PTR_ERR(ref_path);  in setup_dfs_ref()
119 		return rc;  in setup_dfs_ref()
132 	int rc = -ENOENT;  in __dfs_referral_walk()  local
138 			rc = dfs_get_referral(mnt_ctx, ref_walk_path(rw) + 1,  in __dfs_referral_walk()
140 			if (rc) {  in __dfs_referral_walk()
141 				rc = cifs_mount_get_tcon(mnt_ctx);  in __dfs_referral_walk()
142 				if (!rc)  in __dfs_referral_walk()
143 					rc = cifs_is_path_remote(mnt_ctx);  in __dfs_referral_walk()
147 				rc = -ENOENT;  in __dfs_referral_walk()
153 			rc = parse_dfs_target(ctx, rw, &tgt);  in __dfs_referral_walk()
154 			if (rc)  in __dfs_referral_walk()
158 			rc = get_session(mnt_ctx, ref_walk_path(rw));  in __dfs_referral_walk()
159 			if (rc)  in __dfs_referral_walk()
164 				rc = cifs_mount_get_tcon(mnt_ctx);  in __dfs_referral_walk()
165 				if (!rc)  in __dfs_referral_walk()
166 					rc = cifs_is_path_remote(mnt_ctx);  in __dfs_referral_walk()
167 				if (!rc)  in __dfs_referral_walk()
169 				if (rc != -EREMOTE)  in __dfs_referral_walk()
174 			rc = ref_walk_advance(rw);  in __dfs_referral_walk()
175 			if (!rc) {  in __dfs_referral_walk()
176 				rc = setup_dfs_ref(mnt_ctx, &tgt, rw);  in __dfs_referral_walk()
177 				if (!rc) {  in __dfs_referral_walk()
178 					rc = -EREMOTE;  in __dfs_referral_walk()
182 			if (rc != -ELOOP)  in __dfs_referral_walk()
185 	} while (rc && ref_walk_descend(rw));  in __dfs_referral_walk()
189 	return rc;  in __dfs_referral_walk()
195 	int rc;  in dfs_referral_walk()  local
199 		rc = PTR_ERR(*rw);  in dfs_referral_walk()
201 		return rc;  in dfs_referral_walk()
205 	rc = setup_dfs_ref(mnt_ctx, NULL, *rw);  in dfs_referral_walk()
206 	if (!rc)  in dfs_referral_walk()
207 		rc = __dfs_referral_walk(mnt_ctx, *rw);  in dfs_referral_walk()
208 	return rc;  in dfs_referral_walk()
218 	int rc;  in __dfs_mount_share()  local
224 	rc = dfs_referral_walk(mnt_ctx, &rw);  in __dfs_mount_share()
225 	if (!rc) {  in __dfs_mount_share()
231 			rc = -EHOSTDOWN;  in __dfs_mount_share()
233 			rc = -EACCES;  in __dfs_mount_share()
235 			rc = -ENOENT;  in __dfs_mount_share()
237 	if (rc)  in __dfs_mount_share()
252 	return rc;  in __dfs_mount_share()
264 	int rc = 0;  in update_fs_context_dstaddr()  local
267 		rc = dns_resolve_server_name_to_ip(ctx->source, addr, NULL);  in update_fs_context_dstaddr()
268 		if (!rc)  in update_fs_context_dstaddr()
272 	return rc;  in update_fs_context_dstaddr()
279 	int rc;  in dfs_mount_share()  local
281 	rc = update_fs_context_dstaddr(ctx);  in dfs_mount_share()
282 	if (rc)  in dfs_mount_share()
283 		return rc;  in dfs_mount_share()
285 	rc = get_session(mnt_ctx, NULL);  in dfs_mount_share()
286 	if (rc)  in dfs_mount_share()
287 		return rc;  in dfs_mount_share()
297 		rc = dfs_get_referral(mnt_ctx, ctx->UNC + 1, NULL, NULL);  in dfs_mount_share()
298 		if (rc) {  in dfs_mount_share()
300 				 __func__, ctx->UNC + 1, rc);  in dfs_mount_share()
306 		rc = cifs_mount_get_tcon(mnt_ctx);  in dfs_mount_share()
307 		if (!rc)  in dfs_mount_share()
308 			rc = cifs_is_path_remote(mnt_ctx);  in dfs_mount_share()
309 		return rc;  in dfs_mount_share()
315 		rc = get_session(mnt_ctx, NULL);  in dfs_mount_share()
317 	if (!rc) {  in dfs_mount_share()
319 		rc = __dfs_mount_share(mnt_ctx);  in dfs_mount_share()
321 	return rc;  in dfs_mount_share()
328 	int rc = 0;  in update_server_fullpath()  local
355 		rc = PTR_ERR(npath);  in update_server_fullpath()
364 	return rc;  in update_server_fullpath()
370 	int rc = 0;  in target_share_matches_server()  local
383 		rc = match_target_ip(server, dfs_host, dfs_host_len, target_match);  in target_share_matches_server()
384 		if (rc)  in target_share_matches_server()
385 			cifs_dbg(VFS, "%s: failed to match target ip: %d\n", __func__, rc);  in target_share_matches_server()
388 	return rc;  in target_share_matches_server()
397 	int rc;  in __tree_connect_ipc()  local
416 	rc = server->ops->tree_connect(xid, ses, tree, tcon,  in __tree_connect_ipc()
418 	cifs_server_dbg(FYI, "%s: tree_reconnect %s: %d\n", __func__, tree, rc);  in __tree_connect_ipc()
420 	if (rc) {  in __tree_connect_ipc()
443 	int rc;  in __tree_connect_dfs_target()  local
453 		rc = -ENOENT;  in __tree_connect_dfs_target()
467 		rc = dfs_cache_get_tgt_share(server->leaf_fullpath + 1, tit, &share, &prefix);  in __tree_connect_dfs_target()
468 		if (rc) {  in __tree_connect_dfs_target()
469 			cifs_dbg(VFS, "%s: failed to parse target share: %d\n", __func__, rc);  in __tree_connect_dfs_target()
473 		rc = target_share_matches_server(server, share, &target_match);  in __tree_connect_dfs_target()
474 		if (rc)  in __tree_connect_dfs_target()
477 			rc = -EHOSTUNREACH;  in __tree_connect_dfs_target()
486 			rc = ops->tree_connect(xid, tcon->ses, tree, tcon, cifs_sb->local_nls);  in __tree_connect_dfs_target()
498 			rc = ops->tree_connect(xid, tcon->ses, tree, tcon, cifs_sb->local_nls);  in __tree_connect_dfs_target()
499 			if (rc)  in __tree_connect_dfs_target()
502 			rc = cifs_update_super_prepath(cifs_sb, prefix);  in __tree_connect_dfs_target()
505 			rc = update_server_fullpath(server, cifs_sb, target);  in __tree_connect_dfs_target()
508 			if (!rc) {  in __tree_connect_dfs_target()
509 				rc = -EREMOTE;  in __tree_connect_dfs_target()
521 	return rc;  in __tree_connect_dfs_target()
528 	int rc;  in tree_connect_dfs_target()  local
534 		rc = __tree_connect_dfs_target(xid, tcon, cifs_sb, tree, islink, tl);  in tree_connect_dfs_target()
535 		if (!rc || rc != -EREMOTE)  in tree_connect_dfs_target()
537 	} while (rc = -ELOOP, ++num_links < MAX_NESTED_LINKS);  in tree_connect_dfs_target()
542 	if (rc && server->leaf_fullpath != old_fullpath)  in tree_connect_dfs_target()
546 	return rc;  in tree_connect_dfs_target()
551 	int rc;  in cifs_tree_connect()  local
583 		rc = -ENOMEM;  in cifs_tree_connect()
591 		rc = ops->tree_connect(xid, tcon->ses, tree, tcon, nlsc);  in cifs_tree_connect()
605 		rc = ops->tree_connect(xid, tcon->ses, tcon->tree_name, tcon,  in cifs_tree_connect()
610 	rc = tree_connect_dfs_target(xid, tcon, cifs_sb, tree, ref.server_type == DFS_TYPE_LINK,  in cifs_tree_connect()
618 	if (rc) {  in cifs_tree_connect()
631 	return rc;  in cifs_tree_connect()