smb/client/connect.c

75 	int rc;
100 	rc = dns_resolve_server_name_to_ip(unc, (struct sockaddr *)&ss, NULL);
103 	if (rc < 0) {
105 			 __func__, server->hostname, rc);
110 		rc = 0;
113 	return rc;
118 	int rc;
132 	rc = server->ops->query_server_interfaces(xid, tcon, false);
135 	if (rc) {
136 		if (rc == -EOPNOTSUPP)
140 				__func__, rc);
391 	int rc = 0;
406 			rc = reconn_set_ipaddr_from_hostname(server);
407 			cifs_dbg(FYI, "%s: reconn_set_ipaddr_from_hostname: rc=%d\n", __func__, rc);
411 			rc = smbd_reconnect(server);
413 			rc = generic_ip_connect(server);
414 		if (rc) {
416 			cifs_dbg(FYI, "%s: reconnect error %d\n", __func__, rc);
437 	return rc;
443 	int rc;
462 		rc = reconn_set_ipaddr_from_hostname(server);
463 		cifs_dbg(FYI, "%s: reconn_set_ipaddr_from_hostname: rc=%d\n", __func__, rc);
467 		rc = smbd_reconnect(server);
469 		rc = generic_ip_connect(server);
471 	return rc;
477 	int rc;
489 		rc = __reconnect_target_unlocked(server, dfs_cache_get_tgt_name(tit));
490 		if (!rc) {
495 	return rc;
504 	int rc = 0;
537 		rc = reconnect_target_unlocked(server, &tl, &target_hint);
538 		if (rc) {
541 			cifs_dbg(FYI, "%s: reconnect error %d\n", __func__, rc);
573 	return rc;
597 	int rc;
613 	rc = server->ops->echo ? server->ops->echo(server) : -ENOSYS;
614 	cifs_server_dbg(FYI, "send echo request: rc = %d\n", rc);
1092 	int rc;
1102 	rc = server->ops->check_message(buf, server->total_read, server);
1103 	if (rc)
1118 		return rc;
1120 	handle_mid(mid, server, buf, rc);
1684 	int rc;
1695 		rc = -ENOMEM;
1701 		rc = -ENOMEM;
1708 			rc = -ENOMEM;
1785 		rc = -ENOENT;
1792 			rc = 0;
1795 			rc = -ENOENT;
1799 	rc = ip_connect(tcp_ses);
1800 	if (rc < 0) {
1813 		rc = PTR_ERR(tcp_ses->tsk);
1814 		cifs_dbg(VFS, "error %d create cifsd thread\n", rc);
1861 	return ERR_PTR(rc);
1925 	int rc = 0, xid;
1958 	rc = server->ops->tree_connect(xid, ses, unc, tcon, ctx->local_nls);
1961 	if (rc) {
1962 		cifs_server_dbg(VFS, "failed to connect to IPC (rc=%d)\n", rc);
1967 	cifs_dbg(FYI, "IPC tcon rc=%d ipc tid=0x%x\n", rc, tcon->tid);
1974 	return rc;
2012 	int rc;
2049 		rc = server->ops->logoff(xid, ses);
2050 		if (rc)
2051 			cifs_server_dbg(VFS, "%s: Session Logoff failure rc=%d\n",
2052 				__func__, rc);
2089 	int rc = 0;
2117 		rc = -EINVAL;
2126 			rc = PTR_ERR(key);
2135 			rc = PTR_ERR(key);
2144 		rc = upayload ? PTR_ERR(upayload) : -EINVAL;
2155 		rc = -EINVAL;
2163 		rc = -EINVAL;
2171 		rc = -ENOMEM;
2179 		rc = -EINVAL;
2191 		rc = -ENOMEM;
2206 			rc = -ENOMEM;
2223 	cifs_dbg(FYI, "%s: returning %d\n", __func__, rc);
2224 	return rc;
2247 	int rc = 0;
2266 			rc = cifs_negotiate_protocol(xid, ses, server);
2267 			if (rc) {
2272 				return ERR_PTR(rc);
2275 			rc = cifs_setup_session(xid, ses, server,
2277 			if (rc) {
2282 				return ERR_PTR(rc);
2296 	rc = -ENOMEM;
2354 	rc = cifs_negotiate_protocol(xid, ses, server);
2355 	if (!rc)
2356 		rc = cifs_setup_session(xid, ses, server, ctx->local_nls);
2365 	if (rc)
2389 	return ERR_PTR(rc);
2484 		int rc;
2486 		rc = cifs_swn_unregister(tcon);
2487 		if (rc < 0) {
2489 					__func__, rc);
2530 	int rc, xid;
2544 		rc = -ENOSYS;
2555 		rc = -ENOMEM;
2564 			rc = -EOPNOTSUPP;
2574 			rc = -EOPNOTSUPP;
2584 			rc = -ENOMEM;
2593 			rc = -EOPNOTSUPP;
2600 			rc = -EOPNOTSUPP;
2615 			rc = -EOPNOTSUPP;
2620 			rc = -EOPNOTSUPP;
2626 	rc = ses->server->ops->tree_connect(xid, ses, ctx->UNC, tcon,
2629 	cifs_dbg(FYI, "Tcon rc = %d\n", rc);
2630 	if (rc)
2639 			rc = -EOPNOTSUPP;
2647 			rc = -EOPNOTSUPP;
2659 			rc = -EOPNOTSUPP;
2675 				rc = cifs_swn_register(tcon);
2676 				if (rc < 0) {
2677 					cifs_dbg(VFS, "Failed to register for witness notifications: %d\n", rc);
2683 				rc = -EOPNOTSUPP;
2688 			rc = -EOPNOTSUPP;
2705 			rc = -EOPNOTSUPP;
2744 	return ERR_PTR(rc);
2848 	int rc = 0;
2880 		rc = 0;
2884 	rc = compare_mount_options(sb, mnt_data);
2893 	return rc;
2948 	int rc = 0;
2954 		rc = kernel_bind(socket,
2957 		if (rc < 0) {
2965 					 &saddr6->sin6_addr, rc);
2968 					 &saddr4->sin_addr.s_addr, rc);
2971 	return rc;
2977 	int rc = 0;
3017 	rc = smb_send(server, smb_buf, len);
3026 	return rc;
3036 	int rc = 0;
3061 		rc = __sock_create(cifs_net_ns(server), sfamily, SOCK_STREAM,
3063 		if (rc < 0) {
3064 			cifs_server_dbg(VFS, "Error %d creating socket\n", rc);
3065 			return rc;
3079 	rc = bind_socket(server);
3080 	if (rc < 0)
3081 		return rc;
3106 	rc = kernel_connect(socket, saddr, slen,
3113 	if (server->noblockcnt && rc == -EINPROGRESS)
3114 		rc = 0;
3115 	if (rc < 0) {
3116 		cifs_dbg(FYI, "Error %d connecting to server\n", rc);
3117 		trace_smb3_connect_err(server->hostname, server->conn_id, &server->dstaddr, rc);
3120 		return rc;
3124 		rc = ip_rfc1001_connect(server);
3126 	return rc;
3142 		int rc;
3147 		rc = generic_ip_connect(server);
3148 		if (rc >= 0)
3149 			return rc;
3322 	int rc = 0;
3343 	int rc = 0;
3348 		rc = -EINVAL;
3356 		rc = PTR_ERR(server);
3364 		rc = PTR_ERR(ses);
3372 		rc = -EOPNOTSUPP;
3381 	return rc;
3390 	int rc = 0;
3394 		rc = -EINVAL;
3404 		rc = PTR_ERR(tcon);
3426 			rc = -EACCES;
3480 	return rc;
3517 	int rc;
3525 	rc = server->ops->is_path_accessible(xid, tcon, cifs_sb, "");
3526 	while (rc == 0) {
3549 		rc = server->ops->is_path_accessible(xid, tcon, cifs_sb,
3553 	return rc;
3563 	int rc;
3584 	rc = server->ops->is_path_accessible(xid, tcon, cifs_sb,
3586 	if (rc != 0 && rc != -EREMOTE)
3589 	if (rc != -EREMOTE) {
3590 		rc = cifs_are_all_path_components_accessible(server, xid, tcon,
3592 		if (rc != 0) {
3595 			rc = 0;
3601 	return rc;
3609 	int rc;
3611 	rc = dfs_mount_share(&mnt_ctx, &isdfs);
3612 	if (rc)
3633 	rc = mount_setup_tlink(cifs_sb, mnt_ctx.ses, mnt_ctx.tcon);
3634 	if (rc)
3638 	return rc;
3642 	return rc;
3647 	int rc = 0;
3650 	rc = cifs_mount_get_session(&mnt_ctx);
3651 	if (rc)
3654 	rc = cifs_mount_get_tcon(&mnt_ctx);
3655 	if (!rc) {
3661 			rc = -EHOSTDOWN;
3663 			rc = -EACCES;
3665 			rc = -ENOENT;
3667 	if (rc)
3670 	rc = cifs_is_path_remote(&mnt_ctx);
3671 	if (rc == -EREMOTE)
3672 		rc = -EOPNOTSUPP;
3673 	if (rc)
3676 	rc = mount_setup_tlink(cifs_sb, mnt_ctx.ses, mnt_ctx.tcon);
3677 	if (rc)
3681 	return rc;
3685 	return rc;
3702 	int rc = 0;
3760 	rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response, &length,
3764 	if (rc == 0) {
3813 	return rc;
3855 	int rc = 0;
3878 	rc = server->ops->negotiate(xid, ses, server);
3879 	if (rc == 0) {
3884 			rc = -EHOSTDOWN;
3893 	return rc;
3901 	int rc = -ENOSYS;
3966 		rc = server->ops->sess_setup(xid, ses, server, nls_info);
3968 	if (rc) {
3969 		cifs_server_dbg(VFS, "Send error in SessSetup = %d\n", rc);
3988 	return rc;
4006 	int rc;
4037 	rc = cifs_set_vol_auth(ctx, master_tcon->ses);
4038 	if (rc) {
4039 		tcon = ERR_PTR(rc);
4299 	int rc;
4323 	rc = ops->tree_connect(xid, tcon->ses, tcon->tree_name, tcon, nlsc);
4324 	if (rc) {
4337 	return rc;