87 	if ((tcon->ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA) ||  in smb3_encryption_required()
91 	    (tcon->ses->server->capabilities & SMB2_GLOBAL_CAP_ENCRYPTION))  in smb3_encryption_required()
103 	if (tcon && tcon->ses && tcon->ses->server) {  in smb2_hdr_assemble()
104 		struct TCP_Server_Info *server = tcon->ses->server;  in smb2_hdr_assemble()
125 	if ((tcon->ses) && (tcon->ses->server) &&  in smb2_hdr_assemble()
126 	    (tcon->ses->server->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU))  in smb2_hdr_assemble()
132 	if (tcon->ses)  in smb2_hdr_assemble()
133 		shdr->SessionId = tcon->ses->Suid;  in smb2_hdr_assemble()
148 	if (tcon->ses && tcon->ses->server && tcon->ses->server->sign &&  in smb2_hdr_assemble()
160 	struct cifs_ses *ses;  in smb2_reconnect()  local
188 	if ((!tcon->ses) || (tcon->ses->status == CifsExiting) ||  in smb2_reconnect()
189 	    (!tcon->ses->server))  in smb2_reconnect()
192 	ses = tcon->ses;  in smb2_reconnect()
193 	server = ses->server;  in smb2_reconnect()
239 	if (!tcon->ses->need_reconnect && !tcon->need_reconnect)  in smb2_reconnect()
248 	mutex_lock(&tcon->ses->session_mutex);  in smb2_reconnect()
257 		mutex_unlock(&tcon->ses->session_mutex);  in smb2_reconnect()
261 	rc = cifs_negotiate_protocol(0, tcon->ses);  in smb2_reconnect()
262 	if (!rc && tcon->ses->need_reconnect)  in smb2_reconnect()
263 		rc = cifs_setup_session(0, tcon->ses, nls_codepage);  in smb2_reconnect()
266 		mutex_unlock(&tcon->ses->session_mutex);  in smb2_reconnect()
274 	rc = SMB2_tcon(0, tcon->ses, tcon->treeName, tcon, nls_codepage);  in smb2_reconnect()
275 	mutex_unlock(&tcon->ses->session_mutex);  in smb2_reconnect()
603 SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses)  in SMB2_negotiate()  argument
612 	struct TCP_Server_Info *server = ses->server;  in SMB2_negotiate()
632 	memset(ses->preauth_sha_hash, 0, SMB2_PREAUTH_HASH_SIZE);  in SMB2_negotiate()
634 	if (strcmp(ses->server->vals->version_string,  in SMB2_negotiate()
640 	} else if (strcmp(ses->server->vals->version_string,  in SMB2_negotiate()
649 		req->Dialects[0] = cpu_to_le16(ses->server->vals->protocol_id);  in SMB2_negotiate()
655 	if (ses->sign)  in SMB2_negotiate()
662 	req->Capabilities = cpu_to_le32(ses->server->vals->req_capabilities);  in SMB2_negotiate()
665 	if (ses->server->vals->protocol_id == SMB20_PROT_ID)  in SMB2_negotiate()
670 		if (ses->server->vals->protocol_id == SMB311_PROT_ID)  in SMB2_negotiate()
680 	rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags, &rsp_iov);  in SMB2_negotiate()
695 	if (strcmp(ses->server->vals->version_string,  in SMB2_negotiate()
706 	} else if (strcmp(ses->server->vals->version_string,  in SMB2_negotiate()
714 			ses->server->ops = &smb21_operations;  in SMB2_negotiate()
717 				ses->server->vals->protocol_id) {  in SMB2_negotiate()
749 	memcpy(server->preauth_sha_hash, ses->preauth_sha_hash,  in SMB2_negotiate()
781 	rc = cifs_enable_signing(server, ses->sign);  in SMB2_negotiate()
815 	if (tcon->ses->server->dialect == SMB311_PROT_ID)  in smb3_validate_negotiate()
825 	if (tcon->ses->session_flags & SMB2_SESSION_FLAG_IS_GUEST)  in smb3_validate_negotiate()
828 	if (tcon->ses->user_name == NULL) {  in smb3_validate_negotiate()
833 	if (tcon->ses->session_flags & SMB2_SESSION_FLAG_IS_NULL)  in smb3_validate_negotiate()
841 			cpu_to_le32(tcon->ses->server->vals->req_capabilities);  in smb3_validate_negotiate()
842 	memcpy(pneg_inbuf->Guid, tcon->ses->server->client_guid,  in smb3_validate_negotiate()
845 	if (tcon->ses->sign)  in smb3_validate_negotiate()
855 	if (strcmp(tcon->ses->server->vals->version_string,  in smb3_validate_negotiate()
863 	} else if (strcmp(tcon->ses->server->vals->version_string,  in smb3_validate_negotiate()
874 			cpu_to_le16(tcon->ses->server->vals->protocol_id);  in smb3_validate_negotiate()
902 	if (pneg_rsp->Dialect != cpu_to_le16(tcon->ses->server->dialect))  in smb3_validate_negotiate()
905 	if (pneg_rsp->SecurityMode != cpu_to_le16(tcon->ses->server->sec_mode))  in smb3_validate_negotiate()
911 	      SMB2_LARGE_FILES) != tcon->ses->server->capabilities)  in smb3_validate_negotiate()
952 	struct cifs_ses *ses;  member
973 	struct cifs_ses *ses = sess_data->ses;  in SMB2_sess_alloc_buffer()  local
975 	struct TCP_Server_Info *server = ses->server;  in SMB2_sess_alloc_buffer()
1042 	rc = cifs_send_recv(sess_data->xid, sess_data->ses,  in SMB2_sess_sendreceive()
1056 	struct cifs_ses *ses = sess_data->ses;  in SMB2_sess_establish_session()  local
1058 	mutex_lock(&ses->server->srv_mutex);  in SMB2_sess_establish_session()
1059 	if (ses->server->ops->generate_signingkey) {  in SMB2_sess_establish_session()
1060 		rc = ses->server->ops->generate_signingkey(ses);  in SMB2_sess_establish_session()
1064 			mutex_unlock(&ses->server->srv_mutex);  in SMB2_sess_establish_session()
1068 	if (!ses->server->session_estab) {  in SMB2_sess_establish_session()
1069 		ses->server->sequence_number = 0x2;  in SMB2_sess_establish_session()
1070 		ses->server->session_estab = true;  in SMB2_sess_establish_session()
1072 	mutex_unlock(&ses->server->srv_mutex);  in SMB2_sess_establish_session()
1076 	ses->status = CifsGood;  in SMB2_sess_establish_session()
1077 	ses->need_reconnect = false;  in SMB2_sess_establish_session()
1087 	struct cifs_ses *ses = sess_data->ses;  in SMB2_auth_kerberos()  local
1096 	spnego_key = cifs_get_spnego_key(ses);  in SMB2_auth_kerberos()
1116 	ses->auth_key.response = kmemdup(msg->data, msg->sesskey_len,  in SMB2_auth_kerberos()
1118 	if (!ses->auth_key.response) {  in SMB2_auth_kerberos()
1125 	ses->auth_key.len = msg->sesskey_len;  in SMB2_auth_kerberos()
1135 	ses->Suid = rsp->sync_hdr.SessionId;  in SMB2_auth_kerberos()
1137 	ses->session_flags = le16_to_cpu(rsp->SessionFlags);  in SMB2_auth_kerberos()
1165 	struct cifs_ses *ses = sess_data->ses;  in SMB2_sess_auth_rawntlmssp_negotiate()  local
1175 	ses->ntlmssp = kmalloc(sizeof(struct ntlmssp_auth), GFP_KERNEL);  in SMB2_sess_auth_rawntlmssp_negotiate()
1176 	if (!ses->ntlmssp) {  in SMB2_sess_auth_rawntlmssp_negotiate()
1180 	ses->ntlmssp->sesskey_per_smbsess = true;  in SMB2_sess_auth_rawntlmssp_negotiate()
1193 	build_ntlmssp_negotiate_blob(ntlmssp_blob, ses);  in SMB2_sess_auth_rawntlmssp_negotiate()
1225 			le16_to_cpu(rsp->SecurityBufferLength), ses);  in SMB2_sess_auth_rawntlmssp_negotiate()
1232 	ses->Suid = rsp->sync_hdr.SessionId;  in SMB2_sess_auth_rawntlmssp_negotiate()
1233 	ses->session_flags = le16_to_cpu(rsp->SessionFlags);  in SMB2_sess_auth_rawntlmssp_negotiate()
1244 	kfree(ses->ntlmssp);  in SMB2_sess_auth_rawntlmssp_negotiate()
1245 	ses->ntlmssp = NULL;  in SMB2_sess_auth_rawntlmssp_negotiate()
1254 	struct cifs_ses *ses = sess_data->ses;  in SMB2_sess_auth_rawntlmssp_authenticate()  local
1266 	req->sync_hdr.SessionId = ses->Suid;  in SMB2_sess_auth_rawntlmssp_authenticate()
1268 	rc = build_ntlmssp_auth_blob(&ntlmssp_blob, &blob_length, ses,  in SMB2_sess_auth_rawntlmssp_authenticate()
1290 	ses->Suid = rsp->sync_hdr.SessionId;  in SMB2_sess_auth_rawntlmssp_authenticate()
1291 	ses->session_flags = le16_to_cpu(rsp->SessionFlags);  in SMB2_sess_auth_rawntlmssp_authenticate()
1297 	kfree(ses->ntlmssp);  in SMB2_sess_auth_rawntlmssp_authenticate()
1298 	ses->ntlmssp = NULL;  in SMB2_sess_auth_rawntlmssp_authenticate()
1304 SMB2_select_sec(struct cifs_ses *ses, struct SMB2_sess_data *sess_data)  in SMB2_select_sec()  argument
1308 	type = smb2_select_sectype(ses->server, ses->sectype);  in SMB2_select_sec()
1332 SMB2_sess_setup(const unsigned int xid, struct cifs_ses *ses,  in SMB2_sess_setup()  argument
1336 	struct TCP_Server_Info *server = ses->server;  in SMB2_sess_setup()
1350 	rc = SMB2_select_sec(ses, sess_data);  in SMB2_sess_setup()
1354 	sess_data->ses = ses;  in SMB2_sess_setup()
1357 	sess_data->previous_session = ses->Suid;  in SMB2_sess_setup()
1362 	memcpy(ses->preauth_sha_hash, ses->server->preauth_sha_hash,  in SMB2_sess_setup()
1368 	if ((ses->session_flags & SMB2_SESSION_FLAG_IS_GUEST) && (ses->sign))  in SMB2_sess_setup()
1377 SMB2_logoff(const unsigned int xid, struct cifs_ses *ses)  in SMB2_logoff()  argument
1389 	cifs_dbg(FYI, "disconnect session %p\n", ses);  in SMB2_logoff()
1391 	if (ses && (ses->server))  in SMB2_logoff()
1392 		server = ses->server;  in SMB2_logoff()
1397 	if (ses->need_reconnect)  in SMB2_logoff()
1405 	req->sync_hdr.SessionId = ses->Suid;  in SMB2_logoff()
1407 	if (ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA)  in SMB2_logoff()
1421 	rc = cifs_send_recv(xid, ses, &rqst, &resp_buf_type, flags, &rsp_iov);  in SMB2_logoff()
1448 SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,  in SMB2_tcon()  argument
1465 	if (!(ses->server) || !tree)  in SMB2_tcon()
1504 	if ((ses->server->dialect == SMB311_PROT_ID) &&  in SMB2_tcon()
1512 	rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags, &rsp_iov);  in SMB2_tcon()
1555 	    !(tcon->ses->server->capabilities & SMB2_GLOBAL_CAP_ENCRYPTION))  in SMB2_tcon()
1559 	if (tcon->ses->server->ops->validate_negotiate)  in SMB2_tcon()
1560 		rc = tcon->ses->server->ops->validate_negotiate(xid, tcon);  in SMB2_tcon()
1579 	struct cifs_ses *ses = tcon->ses;  in SMB2_tdis()  local
1588 	if (!ses || !(ses->server))  in SMB2_tdis()
1591 	if ((tcon->need_reconnect) || (tcon->ses->need_reconnect))  in SMB2_tdis()
1611 	rc = cifs_send_recv(xid, ses, &rqst, &resp_buf_type, flags, &rsp_iov);  in SMB2_tdis()
1958 	struct cifs_ses *ses = tcon->ses;  in smb311_posix_mkdir()  local
1980 	if (ses && (ses->server))  in smb311_posix_mkdir()
1981 		server = ses->server;  in smb311_posix_mkdir()
2071 	rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags, &rsp_iov);  in smb311_posix_mkdir()
2074 		trace_smb3_posix_mkdir_err(xid, tcon->tid, ses->Suid,  in smb311_posix_mkdir()
2082 				    ses->Suid, CREATE_NOT_FILE,  in smb311_posix_mkdir()
2103 	struct TCP_Server_Info *server = tcon->ses->server;  in SMB2_open_init()
2261 	struct cifs_ses *ses = tcon->ses;  in SMB2_open()  local
2269 	if (ses && (ses->server))  in SMB2_open()
2270 		server = ses->server;  in SMB2_open()
2286 	rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags,  in SMB2_open()
2298 		trace_smb3_open_err(xid, tcon->tid, ses->Suid,  in SMB2_open()
2303 				     ses->Suid, oparms->create_options,  in SMB2_open()
2341 	struct cifs_ses *ses;  in SMB2_ioctl()  local
2360 		ses = tcon->ses;  in SMB2_ioctl()
2364 	if (!ses || !(ses->server))  in SMB2_ioctl()
2433 	rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags,  in SMB2_ioctl()
2440 				ses->Suid, 0, opcode, rc);  in SMB2_ioctl()
2547 	struct cifs_ses *ses = tcon->ses;  in SMB2_close_flags()  local
2555 	if (!ses || !(ses->server))  in SMB2_close_flags()
2570 	rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags, &rsp_iov);  in SMB2_close_flags()
2575 		trace_smb3_close_err(xid, persistent_fid, tcon->tid, ses->Suid,  in SMB2_close_flags()
2703 	struct cifs_ses *ses = tcon->ses;  in query_info()  local
2708 	if (!ses || !(ses->server))  in query_info()
2725 	rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags, &rsp_iov);  in query_info()
2731 				ses->Suid, info_class, (__u32)info_type, rc);  in query_info()
2830 	struct cifs_ses *ses;  in smb2_reconnect_server()  local
2845 	list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) {  in smb2_reconnect_server()
2846 		list_for_each_entry(tcon, &ses->tcon_list, tcon_list) {  in smb2_reconnect_server()
2853 		if (ses->tcon_ipc && ses->tcon_ipc->need_reconnect) {  in smb2_reconnect_server()
2854 			list_add_tail(&ses->tcon_ipc->rlist, &tmp_list);  in smb2_reconnect_server()
2929 	struct cifs_ses *ses = tcon->ses;  in SMB2_flush()  local
2939 	if (!ses || !(ses->server))  in SMB2_flush()
2959 	rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags, &rsp_iov);  in SMB2_flush()
2964 		trace_smb3_flush_err(xid, persistent_fid, tcon->tid, ses->Suid,  in SMB2_flush()
2991 	server = io_parms->tcon->ses->server;  in smb2_new_read_req()
3016 			io_parms->tcon->ses->server->dialect == SMB30_PROT_ID;  in smb2_new_read_req()
3073 	struct TCP_Server_Info *server = tcon->ses->server;  in smb2_readv_callback()
3161 	server = io_parms.tcon->ses->server;  in smb2_async_readv()
3198 	rc = cifs_call_async(io_parms.tcon->ses->server, &rqst,  in smb2_async_readv()
3205 				   io_parms.tcon->tid, io_parms.tcon->ses->Suid,  in smb2_async_readv()
3209 				   io_parms.tcon->tid, io_parms.tcon->ses->Suid,  in smb2_async_readv()
3228 	struct cifs_ses *ses = io_parms->tcon->ses;  in SMB2_read()  local
3245 	rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags, &rsp_iov);  in SMB2_read()
3256 				    io_parms->tcon->tid, ses->Suid,  in SMB2_read()
3262 				    io_parms->tcon->tid, ses->Suid,  in SMB2_read()
3303 		wdata->result = smb2_check_receive(mid, tcon->ses->server, 0);  in smb2_writev_callback()
3348 	add_credits(tcon->ses->server, credits_received, 0);  in smb2_writev_callback()
3360 	struct TCP_Server_Info *server = tcon->ses->server;  in smb2_async_writev()
3480 				     tcon->tid, tcon->ses->Suid, wdata->offset,  in smb2_async_writev()
3486 				     tcon->tid, tcon->ses->Suid, wdata->offset,  in smb2_async_writev()
3523 	if (io_parms->tcon->ses->server == NULL)  in SMB2_write()
3550 	rc = cifs_send_recv(xid, io_parms->tcon->ses, &rqst,  in SMB2_write()
3558 				     io_parms->tcon->ses->Suid,  in SMB2_write()
3566 				     io_parms->tcon->ses->Suid,  in SMB2_write()
3637 	struct cifs_ses *ses = tcon->ses;  in SMB2_query_directory()  local
3645 	if (ses && (ses->server))  in SMB2_query_directory()
3646 		server = ses->server;  in SMB2_query_directory()
3704 	rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags, &rsp_iov);  in SMB2_query_directory()
3771 	struct cifs_ses *ses = tcon->ses;  in send_set_info()  local
3775 	if (!ses || !(ses->server))  in send_set_info()
3823 	rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags,  in send_set_info()
3831 				ses->Suid, info_class, (__u32)info_type, rc);  in send_set_info()
3981 	struct cifs_ses *ses = tcon->ses;  in SMB2_oplock_break()  local
4011 	rc = cifs_send_recv(xid, ses, &rqst, &resp_buf_type, flags, &rsp_iov);  in SMB2_oplock_break()
4064 	if ((tcon->ses == NULL) || (tcon->ses->server == NULL))  in build_qfs_info_req()
4067 	server = tcon->ses->server;  in build_qfs_info_req()
4099 	struct cifs_ses *ses = tcon->ses;  in SMB311_posix_qfs_info()  local
4116 	rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags, &rsp_iov);  in SMB311_posix_qfs_info()
4147 	struct cifs_ses *ses = tcon->ses;  in SMB2_QFS_info()  local
4164 	rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags, &rsp_iov);  in SMB2_QFS_info()
4195 	struct cifs_ses *ses = tcon->ses;  in SMB2_QFS_attr()  local
4228 	rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags, &rsp_iov);  in SMB2_QFS_attr()
4310 	rc = cifs_send_recv(xid, tcon->ses, &rqst, &resp_buf_type, flags,  in smb2_lockv()
4317 				    tcon->ses->Suid, rc);  in smb2_lockv()
4347 	struct cifs_ses *ses = tcon->ses;  in SMB2_lease_break()  local
4379 	rc = cifs_send_recv(xid, ses, &rqst, &resp_buf_type, flags, &rsp_iov);  in SMB2_lease_break()