| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * fs/cifs/rfc1002pdu.h |
| 3 | * |
| 4 | * Protocol Data Unit definitions for RFC 1001/1002 support |
| 5 | * |
| 6 | * Copyright (c) International Business Machines Corp., 2004 |
| 7 | * Author(s): Steve French (sfrench@us.ibm.com) |
| 8 | * |
| 9 | * This library is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU Lesser General Public License as published |
| 11 | * by the Free Software Foundation; either version 2.1 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This library is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| 17 | * the GNU Lesser General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU Lesser General Public License |
| 20 | * along with this library; if not, write to the Free Software |
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 22 | */ |
| 23 | |
| 24 | #pragma pack(1) |
| 25 | |
| 26 | /* NB: unlike smb/cifs packets, the RFC1002 structures are big endian */ |
| 27 | |
| 28 | /* RFC 1002 session packet types */ |
| 29 | #define RFC1002_SESSION_MESASAGE 0x00 |
| 30 | #define RFC1002_SESSION_REQUEST 0x81 |
| 31 | #define RFC1002_POSITIVE_SESSION_RESPONSE 0x82 |
| 32 | #define RFC1002_NEGATIVE_SESSION_RESPONSE 0x83 |
| 33 | #define RFC1002_RETARGET_SESSION_RESPONSE 0x83 |
| 34 | #define RFC1002_SESSION_KEEP_ALIVE 0x85 |
| 35 | |
| 36 | /* RFC 1002 flags (only one defined */ |
| 37 | #define RFC1002_LENGTH_EXTEND 0x80 /* high order bit of length (ie +64K) */ |
| 38 | |
| 39 | struct rfc1002_session_packet { |
| 40 | __u8 type; |
| 41 | __u8 flags; |
| 42 | __u16 length; |
| 43 | union { |
| 44 | struct { |
| 45 | __u8 called_len; |
| 46 | __u8 called_name[32]; |
| 47 | __u8 scope1; /* null */ |
| 48 | __u8 calling_len; |
| 49 | __u8 calling_name[32]; |
| 50 | __u8 scope2; /* null */ |
| 51 | } session_req; |
| 52 | struct { |
| 53 | __u32 retarget_ip_addr; |
| 54 | __u16 port; |
| 55 | } retarget_resp; |
| 56 | __u8 neg_ses_resp_error_code; |
| 57 | /* POSITIVE_SESSION_RESPONSE packet does not include trailer. |
| 58 | SESSION_KEEP_ALIVE packet also does not include a trailer. |
| 59 | Trailer for the SESSION_MESSAGE packet is SMB/CIFS header */ |
| 60 | } trailer; |
| 61 | }; |
| 62 | |
| 63 | /* Negative Session Response error codes */ |
| 64 | #define RFC1002_NOT_LISTENING_CALLED 0x80 /* not listening on called name */ |
| 65 | #define RFC1002_NOT_LISTENING_CALLING 0x81 /* not listening on calling name */ |
| 66 | #define RFC1002_NOT_PRESENT 0x82 /* called name not present */ |
| 67 | #define RFC1002_INSUFFICIENT_RESOURCE 0x83 |
| 68 | #define RFC1002_UNSPECIFIED_ERROR 0x8F |
| 69 | |
| 70 | /* RFC 1002 Datagram service packets are not defined here as they |
| 71 | are not needed for the network filesystem client unless we plan on |
| 72 | implementing broadcast resolution of the server ip address (from |
| 73 | server netbios name). Currently server names are resolved only via DNS |
| 74 | (tcp name) or ip address or an /etc/hosts equivalent mapping to ip address.*/ |
| 75 | |
| 76 | #define DEFAULT_CIFS_CALLED_NAME "*SMBSERVER " |
| 77 | |
| 78 | #pragma pack() /* resume default structure packing */ |
| 79 | |