| /* |
| * fs/cifs/rfc1002pdu.h |
| * |
| * Protocol Data Unit definitions for RFC 1001/1002 support |
| * |
| * Copyright (c) International Business Machines Corp., 2004 |
| * Author(s): Steve French (sfrench@us.ibm.com) |
| * |
| * This library is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU Lesser General Public License as published |
| * by the Free Software Foundation; either version 2.1 of the License, or |
| * (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| * the GNU Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public License |
| * along with this library; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| /* NB: unlike smb/cifs packets, the RFC1002 structures are big endian */ |
| |
| /* RFC 1002 session packet types */ |
| #define RFC1002_SESSION_MESSAGE 0x00 |
| #define RFC1002_SESSION_REQUEST 0x81 |
| #define RFC1002_POSITIVE_SESSION_RESPONSE 0x82 |
| #define RFC1002_NEGATIVE_SESSION_RESPONSE 0x83 |
| #define RFC1002_RETARGET_SESSION_RESPONSE 0x84 |
| #define RFC1002_SESSION_KEEP_ALIVE 0x85 |
| |
| /* RFC 1002 flags (only one defined */ |
| #define RFC1002_LENGTH_EXTEND 0x80 /* high order bit of length (ie +64K) */ |
| |
| struct rfc1002_session_packet { |
| __u8 type; |
| __u8 flags; |
| __u16 length; |
| union { |
| struct { |
| __u8 called_len; |
| __u8 called_name[32]; |
| __u8 scope1; /* null */ |
| __u8 calling_len; |
| __u8 calling_name[32]; |
| __u8 scope2; /* null */ |
| } __attribute__((packed)) session_req; |
| struct { |
| __u32 retarget_ip_addr; |
| __u16 port; |
| } __attribute__((packed)) retarget_resp; |
| __u8 neg_ses_resp_error_code; |
| /* POSITIVE_SESSION_RESPONSE packet does not include trailer. |
| SESSION_KEEP_ALIVE packet also does not include a trailer. |
| Trailer for the SESSION_MESSAGE packet is SMB/CIFS header */ |
| } __attribute__((packed)) trailer; |
| } __attribute__((packed)); |
| |
| /* Negative Session Response error codes */ |
| #define RFC1002_NOT_LISTENING_CALLED 0x80 /* not listening on called name */ |
| #define RFC1002_NOT_LISTENING_CALLING 0x81 /* not listening on calling name */ |
| #define RFC1002_NOT_PRESENT 0x82 /* called name not present */ |
| #define RFC1002_INSUFFICIENT_RESOURCE 0x83 |
| #define RFC1002_UNSPECIFIED_ERROR 0x8F |
| |
| /* RFC 1002 Datagram service packets are not defined here as they |
| are not needed for the network filesystem client unless we plan on |
| implementing broadcast resolution of the server ip address (from |
| server netbios name). Currently server names are resolved only via DNS |
| (tcp name) or ip address or an /etc/hosts equivalent mapping to ip address.*/ |
| |
| #define DEFAULT_CIFS_CALLED_NAME "*SMBSERVER " |