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 set_ref_paths()  local
117 		rc = PTR_ERR(ref_path);  in set_ref_paths()
119 		return rc;  in set_ref_paths()
132 	int rc = -ENOENT;  in __dfs_referral_walk()  local
137 			rc = dfs_get_referral(mnt_ctx, ref_walk_path(rw) + 1,  in __dfs_referral_walk()
139 			if (rc) {  in __dfs_referral_walk()
140 				rc = cifs_mount_get_tcon(mnt_ctx);  in __dfs_referral_walk()
141 				if (!rc)  in __dfs_referral_walk()
142 					rc = cifs_is_path_remote(mnt_ctx);  in __dfs_referral_walk()
146 				rc = -ENOENT;  in __dfs_referral_walk()
152 			rc = parse_dfs_target(ctx, rw, &tgt);  in __dfs_referral_walk()
153 			if (rc)  in __dfs_referral_walk()
157 			rc = get_session(mnt_ctx, ref_walk_path(rw));  in __dfs_referral_walk()
158 			if (rc)  in __dfs_referral_walk()
166 				rc = cifs_mount_get_tcon(mnt_ctx);  in __dfs_referral_walk()
167 				if (!rc)  in __dfs_referral_walk()
168 					rc = cifs_is_path_remote(mnt_ctx);  in __dfs_referral_walk()
169 				if (!rc)  in __dfs_referral_walk()
171 				if (rc != -EREMOTE)  in __dfs_referral_walk()
178 			rc = ref_walk_advance(rw);  in __dfs_referral_walk()
179 			if (!rc) {  in __dfs_referral_walk()
180 				rc = set_ref_paths(mnt_ctx, &tgt, rw);  in __dfs_referral_walk()
181 				if (!rc) {  in __dfs_referral_walk()
182 					rc = -EREMOTE;  in __dfs_referral_walk()
186 			if (rc != -ELOOP)  in __dfs_referral_walk()
189 	} while (rc && ref_walk_descend(rw));  in __dfs_referral_walk()
193 	return rc;  in __dfs_referral_walk()
199 	int rc;  in dfs_referral_walk()  local
206 	rc = set_ref_paths(mnt_ctx, NULL, rw);  in dfs_referral_walk()
207 	if (!rc)  in dfs_referral_walk()
208 		rc = __dfs_referral_walk(mnt_ctx, rw);  in dfs_referral_walk()
210 	return rc;  in dfs_referral_walk()
220 	int rc;  in __dfs_mount_share()  local
226 	rc = dfs_referral_walk(mnt_ctx);  in __dfs_mount_share()
227 	if (!rc) {  in __dfs_mount_share()
233 			rc = -EHOSTDOWN;  in __dfs_mount_share()
235 			rc = -EACCES;  in __dfs_mount_share()
237 			rc = -ENOENT;  in __dfs_mount_share()
239 	if (rc)  in __dfs_mount_share()
259 	return rc;  in __dfs_mount_share()
271 	int rc = 0;  in update_fs_context_dstaddr()  local
274 		rc = dns_resolve_server_name_to_ip(ctx->source, addr, NULL);  in update_fs_context_dstaddr()
275 		if (!rc)  in update_fs_context_dstaddr()
279 	return rc;  in update_fs_context_dstaddr()
286 	int rc;  in dfs_mount_share()  local
288 	rc = update_fs_context_dstaddr(ctx);  in dfs_mount_share()
289 	if (rc)  in dfs_mount_share()
290 		return rc;  in dfs_mount_share()
293 	rc = get_session(mnt_ctx, NULL);  in dfs_mount_share()
294 	if (rc)  in dfs_mount_share()
295 		return rc;  in dfs_mount_share()
305 		rc = dfs_get_referral(mnt_ctx, ctx->UNC + 1, NULL, NULL);  in dfs_mount_share()
306 		if (rc) {  in dfs_mount_share()
308 				 __func__, ctx->UNC + 1, rc);  in dfs_mount_share()
314 		rc = cifs_mount_get_tcon(mnt_ctx);  in dfs_mount_share()
315 		if (!rc)  in dfs_mount_share()
316 			rc = cifs_is_path_remote(mnt_ctx);  in dfs_mount_share()
317 		return rc;  in dfs_mount_share()
322 	rc = __dfs_mount_share(mnt_ctx);  in dfs_mount_share()
324 	return rc;  in dfs_mount_share()
330 	int rc = 0;  in target_share_matches_server()  local
343 		rc = match_target_ip(server, dfs_host, dfs_host_len, target_match);  in target_share_matches_server()
344 		if (rc)  in target_share_matches_server()
345 			cifs_dbg(VFS, "%s: failed to match target ip: %d\n", __func__, rc);  in target_share_matches_server()
348 	return rc;  in target_share_matches_server()
362 	int rc = -ENOENT;  in tree_connect_dfs_target()  local
372 		rc = dfs_cache_get_tgt_share(server->leaf_fullpath + 1, tit, &share, &prefix);  in tree_connect_dfs_target()
373 		if (rc) {  in tree_connect_dfs_target()
374 			cifs_dbg(VFS, "%s: failed to parse target share: %d\n", __func__, rc);  in tree_connect_dfs_target()
378 		rc = target_share_matches_server(server, share, &target_match);  in tree_connect_dfs_target()
379 		if (rc)  in tree_connect_dfs_target()
382 			rc = -EHOSTUNREACH;  in tree_connect_dfs_target()
388 		rc = ops->tree_connect(xid, tcon->ses, tree,  in tree_connect_dfs_target()
390 		if (islink && !rc && cifs_sb)  in tree_connect_dfs_target()
391 			rc = cifs_update_super_prepath(cifs_sb, prefix);  in tree_connect_dfs_target()
398 	return rc;  in tree_connect_dfs_target()
403 	int rc;  in cifs_tree_connect()  local
435 		rc = -ENOMEM;  in cifs_tree_connect()
443 		rc = ops->tree_connect(xid, tcon->ses, tree, tcon, nlsc);  in cifs_tree_connect()
454 		rc = ops->tree_connect(xid, tcon->ses, tcon->tree_name,  in cifs_tree_connect()
459 	rc = tree_connect_dfs_target(xid, tcon, cifs_sb, tree, ref.server_type == DFS_TYPE_LINK,  in cifs_tree_connect()
467 	if (rc) {  in cifs_tree_connect()
480 	return rc;  in cifs_tree_connect()