26 	int rc;  in dfs_parse_target_referral()  local
47 	rc = smb3_parse_devname(path, ctx);  in dfs_parse_target_referral()
48 	if (rc)  in dfs_parse_target_referral()
51 	rc = dns_resolve_unc(DFS_DOM(ctx), path,  in dfs_parse_target_referral()
55 	return rc;  in dfs_parse_target_referral()
61 	int rc;  in get_session()  local
65 	rc = cifs_mount_get_session(mnt_ctx);  in get_session()
68 	return rc;  in get_session()
92 	int rc;  in parse_dfs_target()  local
95 	rc = ref_walk_get_tgt(rw, tgt);  in parse_dfs_target()
96 	if (!rc)  in parse_dfs_target()
97 		rc = dfs_parse_target_referral(fpath, tgt, ctx);  in parse_dfs_target()
98 	return rc;  in parse_dfs_target()
106 	int rc;  in setup_dfs_ref()  local
121 		rc = PTR_ERR(ref_path);  in setup_dfs_ref()
123 		return rc;  in setup_dfs_ref()
138 	int rc = -ENOENT;  in __dfs_referral_walk()  local
144 			rc = parse_dfs_target(ctx, rw, &tgt);  in __dfs_referral_walk()
145 			if (rc)  in __dfs_referral_walk()
149 			rc = get_session(mnt_ctx, ref_walk_path(rw));  in __dfs_referral_walk()
150 			if (rc)  in __dfs_referral_walk()
153 			rc = cifs_mount_get_tcon(mnt_ctx);  in __dfs_referral_walk()
154 			if (rc) {  in __dfs_referral_walk()
157 					rc = -EREMOTE;  in __dfs_referral_walk()
159 				rc = cifs_is_path_remote(mnt_ctx);  in __dfs_referral_walk()
160 				if (!rc) {  in __dfs_referral_walk()
165 			if (rc == -EREMOTE) {  in __dfs_referral_walk()
166 				rc = ref_walk_advance(rw);  in __dfs_referral_walk()
167 				if (!rc) {  in __dfs_referral_walk()
168 					rc = setup_dfs_ref(&tgt, rw);  in __dfs_referral_walk()
169 					if (rc)  in __dfs_referral_walk()
176 	} while (rc && ref_walk_descend(rw));  in __dfs_referral_walk()
179 	return rc;  in __dfs_referral_walk()
185 	int rc;  in dfs_referral_walk()  local
189 		rc = PTR_ERR(*rw);  in dfs_referral_walk()
191 		return rc;  in dfs_referral_walk()
195 	rc = setup_dfs_ref(NULL, *rw);  in dfs_referral_walk()
196 	if (!rc)  in dfs_referral_walk()
197 		rc = __dfs_referral_walk(*rw);  in dfs_referral_walk()
198 	return rc;  in dfs_referral_walk()
208 	int rc;  in __dfs_mount_share()  local
214 	rc = dfs_referral_walk(mnt_ctx, &rw);  in __dfs_mount_share()
215 	if (!rc) {  in __dfs_mount_share()
221 			rc = -EHOSTDOWN;  in __dfs_mount_share()
223 			rc = -EACCES;  in __dfs_mount_share()
225 			rc = -ENOENT;  in __dfs_mount_share()
227 	if (rc)  in __dfs_mount_share()
242 	return rc;  in __dfs_mount_share()
254 	int rc = 0;  in update_fs_context_dstaddr()  local
257 		rc = dns_resolve_unc(NULL, ctx->source, addr);  in update_fs_context_dstaddr()
258 		if (!rc)  in update_fs_context_dstaddr()
262 	return rc;  in update_fs_context_dstaddr()
269 	int rc;  in dfs_mount_share()  local
271 	rc = update_fs_context_dstaddr(ctx);  in dfs_mount_share()
272 	if (rc)  in dfs_mount_share()
273 		return rc;  in dfs_mount_share()
275 	rc = get_session(mnt_ctx, NULL);  in dfs_mount_share()
276 	if (rc)  in dfs_mount_share()
277 		return rc;  in dfs_mount_share()
287 		rc = dfs_get_referral(mnt_ctx, ctx->UNC + 1, NULL);  in dfs_mount_share()
288 		if (rc) {  in dfs_mount_share()
290 				 __func__, ctx->UNC + 1, rc);  in dfs_mount_share()
296 		rc = cifs_mount_get_tcon(mnt_ctx);  in dfs_mount_share()
297 		if (!rc)  in dfs_mount_share()
298 			rc = cifs_is_path_remote(mnt_ctx);  in dfs_mount_share()
299 		return rc;  in dfs_mount_share()
305 		rc = get_session(mnt_ctx, NULL);  in dfs_mount_share()
307 	if (!rc)  in dfs_mount_share()
308 		rc = __dfs_mount_share(mnt_ctx);  in dfs_mount_share()
309 	return rc;  in dfs_mount_share()
315 	int rc = 0;  in target_share_matches_server()  local
328 		rc = match_target_ip(server, dfs_host, dfs_host_len, target_match);  in target_share_matches_server()
329 		if (rc)  in target_share_matches_server()
330 			cifs_dbg(VFS, "%s: failed to match target ip: %d\n", __func__, rc);  in target_share_matches_server()
333 	return rc;  in target_share_matches_server()
347 	int rc = -ENOENT;  in tree_connect_dfs_target()  local
357 		rc = dfs_cache_get_tgt_share(server->leaf_fullpath + 1, tit, &share, &prefix);  in tree_connect_dfs_target()
358 		if (rc) {  in tree_connect_dfs_target()
359 			cifs_dbg(VFS, "%s: failed to parse target share: %d\n", __func__, rc);  in tree_connect_dfs_target()
363 		rc = target_share_matches_server(server, share, &target_match);  in tree_connect_dfs_target()
364 		if (rc)  in tree_connect_dfs_target()
367 			rc = -EHOSTUNREACH;  in tree_connect_dfs_target()
373 		rc = ops->tree_connect(xid, tcon->ses, tree,  in tree_connect_dfs_target()
375 		if (islink && !rc && cifs_sb)  in tree_connect_dfs_target()
376 			rc = cifs_update_super_prepath(cifs_sb, prefix);  in tree_connect_dfs_target()
383 	return rc;  in tree_connect_dfs_target()
388 	int rc;  in cifs_tree_connect()  local
420 		rc = -ENOMEM;  in cifs_tree_connect()
428 		rc = ops->tree_connect(xid, tcon->ses, tree,  in cifs_tree_connect()
440 		rc = ops->tree_connect(xid, tcon->ses, tcon->tree_name,  in cifs_tree_connect()
445 	rc = tree_connect_dfs_target(xid, tcon, cifs_sb, tree, ref.server_type == DFS_TYPE_LINK,  in cifs_tree_connect()
453 	if (rc) {  in cifs_tree_connect()
466 	return rc;  in cifs_tree_connect()