1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * fs/cifs/rfc1002pdu.h 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Protocol Data Unit definitions for RFC 1001/1002 support 5*4882a593Smuzhiyun * 6*4882a593Smuzhiyun * Copyright (c) International Business Machines Corp., 2004 7*4882a593Smuzhiyun * Author(s): Steve French (sfrench@us.ibm.com) 8*4882a593Smuzhiyun * 9*4882a593Smuzhiyun * This library is free software; you can redistribute it and/or modify 10*4882a593Smuzhiyun * it under the terms of the GNU Lesser General Public License as published 11*4882a593Smuzhiyun * by the Free Software Foundation; either version 2.1 of the License, or 12*4882a593Smuzhiyun * (at your option) any later version. 13*4882a593Smuzhiyun * 14*4882a593Smuzhiyun * This library is distributed in the hope that it will be useful, 15*4882a593Smuzhiyun * but WITHOUT ANY WARRANTY; without even the implied warranty of 16*4882a593Smuzhiyun * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See 17*4882a593Smuzhiyun * the GNU Lesser General Public License for more details. 18*4882a593Smuzhiyun * 19*4882a593Smuzhiyun * You should have received a copy of the GNU Lesser General Public License 20*4882a593Smuzhiyun * along with this library; if not, write to the Free Software 21*4882a593Smuzhiyun * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 22*4882a593Smuzhiyun */ 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun /* NB: unlike smb/cifs packets, the RFC1002 structures are big endian */ 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun /* RFC 1002 session packet types */ 27*4882a593Smuzhiyun #define RFC1002_SESSION_MESSAGE 0x00 28*4882a593Smuzhiyun #define RFC1002_SESSION_REQUEST 0x81 29*4882a593Smuzhiyun #define RFC1002_POSITIVE_SESSION_RESPONSE 0x82 30*4882a593Smuzhiyun #define RFC1002_NEGATIVE_SESSION_RESPONSE 0x83 31*4882a593Smuzhiyun #define RFC1002_RETARGET_SESSION_RESPONSE 0x84 32*4882a593Smuzhiyun #define RFC1002_SESSION_KEEP_ALIVE 0x85 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun /* RFC 1002 flags (only one defined */ 35*4882a593Smuzhiyun #define RFC1002_LENGTH_EXTEND 0x80 /* high order bit of length (ie +64K) */ 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun struct rfc1002_session_packet { 38*4882a593Smuzhiyun __u8 type; 39*4882a593Smuzhiyun __u8 flags; 40*4882a593Smuzhiyun __u16 length; 41*4882a593Smuzhiyun union { 42*4882a593Smuzhiyun struct { 43*4882a593Smuzhiyun __u8 called_len; 44*4882a593Smuzhiyun __u8 called_name[32]; 45*4882a593Smuzhiyun __u8 scope1; /* null */ 46*4882a593Smuzhiyun __u8 calling_len; 47*4882a593Smuzhiyun __u8 calling_name[32]; 48*4882a593Smuzhiyun __u8 scope2; /* null */ 49*4882a593Smuzhiyun } __attribute__((packed)) session_req; 50*4882a593Smuzhiyun struct { 51*4882a593Smuzhiyun __u32 retarget_ip_addr; 52*4882a593Smuzhiyun __u16 port; 53*4882a593Smuzhiyun } __attribute__((packed)) retarget_resp; 54*4882a593Smuzhiyun __u8 neg_ses_resp_error_code; 55*4882a593Smuzhiyun /* POSITIVE_SESSION_RESPONSE packet does not include trailer. 56*4882a593Smuzhiyun SESSION_KEEP_ALIVE packet also does not include a trailer. 57*4882a593Smuzhiyun Trailer for the SESSION_MESSAGE packet is SMB/CIFS header */ 58*4882a593Smuzhiyun } __attribute__((packed)) trailer; 59*4882a593Smuzhiyun } __attribute__((packed)); 60*4882a593Smuzhiyun 61*4882a593Smuzhiyun /* Negative Session Response error codes */ 62*4882a593Smuzhiyun #define RFC1002_NOT_LISTENING_CALLED 0x80 /* not listening on called name */ 63*4882a593Smuzhiyun #define RFC1002_NOT_LISTENING_CALLING 0x81 /* not listening on calling name */ 64*4882a593Smuzhiyun #define RFC1002_NOT_PRESENT 0x82 /* called name not present */ 65*4882a593Smuzhiyun #define RFC1002_INSUFFICIENT_RESOURCE 0x83 66*4882a593Smuzhiyun #define RFC1002_UNSPECIFIED_ERROR 0x8F 67*4882a593Smuzhiyun 68*4882a593Smuzhiyun /* RFC 1002 Datagram service packets are not defined here as they 69*4882a593Smuzhiyun are not needed for the network filesystem client unless we plan on 70*4882a593Smuzhiyun implementing broadcast resolution of the server ip address (from 71*4882a593Smuzhiyun server netbios name). Currently server names are resolved only via DNS 72*4882a593Smuzhiyun (tcp name) or ip address or an /etc/hosts equivalent mapping to ip address.*/ 73*4882a593Smuzhiyun 74*4882a593Smuzhiyun #define DEFAULT_CIFS_CALLED_NAME "*SMBSERVER " 75