114 	if ((tcon->ses) && (tcon->ses->server) &&  in smb2_hdr_assemble()
115 	    (tcon->ses->server->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU))  in smb2_hdr_assemble()
121 	if (tcon->ses)  in smb2_hdr_assemble()
122 		hdr->SessionId = tcon->ses->Suid;  in smb2_hdr_assemble()
137 	if (tcon->ses && tcon->ses->server && tcon->ses->server->sign)  in smb2_hdr_assemble()
149 	struct cifs_ses *ses;  in smb2_reconnect()  local
177 	if ((!tcon->ses) || (tcon->ses->status == CifsExiting) ||  in smb2_reconnect()
178 	    (!tcon->ses->server))  in smb2_reconnect()
181 	ses = tcon->ses;  in smb2_reconnect()
182 	server = ses->server;  in smb2_reconnect()
222 	if (!tcon->ses->need_reconnect && !tcon->need_reconnect)  in smb2_reconnect()
231 	mutex_lock(&tcon->ses->session_mutex);  in smb2_reconnect()
232 	rc = cifs_negotiate_protocol(0, tcon->ses);  in smb2_reconnect()
233 	if (!rc && tcon->ses->need_reconnect)  in smb2_reconnect()
234 		rc = cifs_setup_session(0, tcon->ses, nls_codepage);  in smb2_reconnect()
237 		mutex_unlock(&tcon->ses->session_mutex);  in smb2_reconnect()
242 	rc = SMB2_tcon(0, tcon->ses, tcon->treeName, tcon, nls_codepage);  in smb2_reconnect()
243 	mutex_unlock(&tcon->ses->session_mutex);  in smb2_reconnect()
324 SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses)  in SMB2_negotiate()  argument
331 	struct TCP_Server_Info *server = ses->server;  in SMB2_negotiate()
349 	req->Dialects[0] = cpu_to_le16(ses->server->vals->protocol_id);  in SMB2_negotiate()
355 	if (ses->sign)  in SMB2_negotiate()
362 	req->Capabilities = cpu_to_le32(ses->server->vals->req_capabilities);  in SMB2_negotiate()
365 	if (ses->server->vals->protocol_id == SMB20_PROT_ID)  in SMB2_negotiate()
375 	rc = SendReceive2(xid, ses, iov, 1, &resp_buftype, flags);  in SMB2_negotiate()
430 	rc = cifs_enable_signing(server, ses->sign);  in SMB2_negotiate()
462 	if (tcon->ses->server->sign == false)  in smb3_validate_negotiate()
466 			cpu_to_le32(tcon->ses->server->vals->req_capabilities);  in smb3_validate_negotiate()
467 	memcpy(vneg_inbuf.Guid, tcon->ses->server->client_guid,  in smb3_validate_negotiate()
470 	if (tcon->ses->sign)  in smb3_validate_negotiate()
481 		cpu_to_le16(tcon->ses->server->vals->protocol_id);  in smb3_validate_negotiate()
500 			cpu_to_le16(tcon->ses->server->vals->protocol_id))  in smb3_validate_negotiate()
503 	if (pneg_rsp->SecurityMode != cpu_to_le16(tcon->ses->server->sec_mode))  in smb3_validate_negotiate()
509 	      SMB2_LARGE_FILES) != tcon->ses->server->capabilities)  in smb3_validate_negotiate()
522 SMB2_sess_setup(const unsigned int xid, struct cifs_ses *ses,  in SMB2_sess_setup()  argument
531 	struct TCP_Server_Info *server = ses->server;  in SMB2_sess_setup()
549 	kfree(ses->auth_key.response);  in SMB2_sess_setup()
550 	ses->auth_key.response = NULL;  in SMB2_sess_setup()
556 	ses->ntlmssp = kmalloc(sizeof(struct ntlmssp_auth), GFP_KERNEL);  in SMB2_sess_setup()
557 	if (!ses->ntlmssp)  in SMB2_sess_setup()
559 	ses->ntlmssp->sesskey_per_smbsess = true;  in SMB2_sess_setup()
562 	if (ses->sectype != Kerberos && ses->sectype != RawNTLMSSP)  in SMB2_sess_setup()
563 		ses->sectype = RawNTLMSSP;  in SMB2_sess_setup()
593 	if (ses->sectype == Kerberos) {  in SMB2_sess_setup()
597 		spnego_key = cifs_get_spnego_key(ses);  in SMB2_sess_setup()
616 		ses->auth_key.response = kmemdup(msg->data, msg->sesskey_len,  in SMB2_sess_setup()
618 		if (!ses->auth_key.response) {  in SMB2_sess_setup()
625 		ses->auth_key.len = msg->sesskey_len;  in SMB2_sess_setup()
640 		build_ntlmssp_negotiate_blob(ntlmssp_blob, ses);  in SMB2_sess_setup()
659 		req->hdr.SessionId = ses->Suid;  in SMB2_sess_setup()
666 		rc = build_ntlmssp_auth_blob(ntlmssp_blob, &blob_length, ses,  in SMB2_sess_setup()
703 	rc = SendReceive2(xid, ses, iov, 2, &resp_buftype,  in SMB2_sess_setup()
708 	ses->Suid = rsp->hdr.SessionId;  in SMB2_sess_setup()
727 				le16_to_cpu(rsp->SecurityBufferLength), ses);  in SMB2_sess_setup()
741 	ses->session_flags = le16_to_cpu(rsp->SessionFlags);  in SMB2_sess_setup()
742 	if (ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA)  in SMB2_sess_setup()
754 			rc = server->ops->generate_signingkey(ses);  in SMB2_sess_setup()
755 			kfree(ses->auth_key.response);  in SMB2_sess_setup()
756 			ses->auth_key.response = NULL;  in SMB2_sess_setup()
772 		ses->status = CifsGood;  in SMB2_sess_setup()
773 		ses->need_reconnect = false;  in SMB2_sess_setup()
779 		kfree(ses->auth_key.response);  in SMB2_sess_setup()
780 		ses->auth_key.response = NULL;  in SMB2_sess_setup()
786 	kfree(ses->ntlmssp);  in SMB2_sess_setup()
792 SMB2_logoff(const unsigned int xid, struct cifs_ses *ses)  in SMB2_logoff()  argument
798 	cifs_dbg(FYI, "disconnect session %p\n", ses);  in SMB2_logoff()
800 	if (ses && (ses->server))  in SMB2_logoff()
801 		server = ses->server;  in SMB2_logoff()
806 	if (ses->need_reconnect)  in SMB2_logoff()
814 	req->hdr.SessionId = ses->Suid;  in SMB2_logoff()
818 	rc = SendReceiveNoRsp(xid, ses, (char *) &req->hdr, 0);  in SMB2_logoff()
844 SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,  in SMB2_tcon()  argument
858 	if ((ses->server) && tree)  in SMB2_tcon()
859 		server = ses->server;  in SMB2_tcon()
885 		req->hdr.SessionId = ses->Suid;  in SMB2_tcon()
903 	rc = SendReceive2(xid, ses, iov, 2, &resp_buftype, 0);  in SMB2_tcon()
915 		ses->ipc_tid = rsp->hdr.TreeId;  in SMB2_tcon()
945 	if (tcon->ses->server->ops->validate_negotiate)  in SMB2_tcon()
946 		rc = tcon->ses->server->ops->validate_negotiate(xid, tcon);  in SMB2_tcon()
967 	struct cifs_ses *ses = tcon->ses;  in SMB2_tdis()  local
971 	if (ses && (ses->server))  in SMB2_tdis()
972 		server = ses->server;  in SMB2_tdis()
976 	if ((tcon->need_reconnect) || (tcon->ses->need_reconnect))  in SMB2_tdis()
983 	rc = SendReceiveNoRsp(xid, ses, (char *)&req->hdr, 0);  in SMB2_tdis()
1126 	struct cifs_ses *ses = tcon->ses;  in SMB2_open()  local
1139 	if (ses && (ses->server))  in SMB2_open()
1140 		server = ses->server;  in SMB2_open()
1225 	rc = SendReceive2(xid, ses, iov, num_iovecs, &resp_buftype, 0);  in SMB2_open()
1271 	struct cifs_ses *ses;  in SMB2_ioctl()  local
1287 		ses = tcon->ses;  in SMB2_ioctl()
1291 	if (ses && (ses->server))  in SMB2_ioctl()
1292 		server = ses->server;  in SMB2_ioctl()
1350 	rc = SendReceive2(xid, ses, iov, num_iovecs, &resp_buftype, 0);  in SMB2_ioctl()
1433 	struct cifs_ses *ses = tcon->ses;  in SMB2_close()  local
1440 	if (ses && (ses->server))  in SMB2_close()
1441 		server = ses->server;  in SMB2_close()
1456 	rc = SendReceive2(xid, ses, iov, 1, &resp_buftype, 0);  in SMB2_close()
1539 	struct cifs_ses *ses = tcon->ses;  in query_info()  local
1543 	if (ses && (ses->server))  in query_info()
1544 		server = ses->server;  in query_info()
1565 	rc = SendReceive2(xid, ses, iov, 1, &resp_buftype, 0);  in query_info()
1660 	struct cifs_ses *ses = tcon->ses;  in SMB2_flush()  local
1667 	if (ses && (ses->server))  in SMB2_flush()
1668 		server = ses->server;  in SMB2_flush()
1683 	rc = SendReceive2(xid, ses, iov, 1, &resp_buftype, 0);  in SMB2_flush()
1706 	if (io_parms->tcon->ses->server == NULL)  in smb2_new_read_req()
1755 	struct TCP_Server_Info *server = tcon->ses->server;  in smb2_readv_callback()
1829 	server = io_parms.tcon->ses->server;  in smb2_async_readv()
1860 	rc = cifs_call_async(io_parms.tcon->ses->server, &rqst,  in smb2_async_readv()
1885 	rc = SendReceive2(xid, io_parms->tcon->ses, iov, 1,  in SMB2_read()
1939 		wdata->result = smb2_check_receive(mid, tcon->ses->server, 0);  in smb2_writev_callback()
1972 	add_credits(tcon->ses->server, credits_received, 0);  in smb2_writev_callback()
1983 	struct TCP_Server_Info *server = tcon->ses->server;  in smb2_async_writev()
2079 	if (io_parms->tcon->ses->server == NULL)  in SMB2_write()
2103 	rc = SendReceive2(xid, io_parms->tcon->ses, iov, n_vec + 1,  in SMB2_write()
2173 	struct cifs_ses *ses = tcon->ses;  in SMB2_query_directory()  local
2179 	if (ses && (ses->server))  in SMB2_query_directory()
2180 		server = ses->server;  in SMB2_query_directory()
2232 	rc = SendReceive2(xid, ses, iov, 2, &resp_buftype, 0);  in SMB2_query_directory()
2296 	struct cifs_ses *ses = tcon->ses;  in send_set_info()  local
2298 	if (ses && (ses->server))  in send_set_info()
2299 		server = ses->server;  in send_set_info()
2343 	rc = SendReceive2(xid, ses, iov, num, &resp_buftype, 0);  in send_set_info()
2484 	rc = SendReceiveNoRsp(xid, tcon->ses, (char *) req, CIFS_OBREAK_OP);  in SMB2_oplock_break()
2516 	if ((tcon->ses == NULL) || (tcon->ses->server == NULL))  in build_qfs_info_req()
2547 	struct cifs_ses *ses = tcon->ses;  in SMB2_QFS_info()  local
2556 	rc = SendReceive2(xid, ses, &iov, 1, &resp_buftype, 0);  in SMB2_QFS_info()
2584 	struct cifs_ses *ses = tcon->ses;  in SMB2_QFS_attr()  local
2606 	rc = SendReceive2(xid, ses, &iov, 1, &resp_buftype, 0);  in SMB2_QFS_attr()
2672 	rc = SendReceive2(xid, tcon->ses, iov, 2, &resp_buf_type, CIFS_NO_RESP);  in smb2_lockv()
2718 	rc = SendReceiveNoRsp(xid, tcon->ses, (char *) req, CIFS_OBREAK_OP);  in SMB2_lease_break()