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Diffstat (limited to 'fs/cifs/rfc1002pdu.h')
| -rw-r--r-- | fs/cifs/rfc1002pdu.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/fs/cifs/rfc1002pdu.h b/fs/cifs/rfc1002pdu.h new file mode 100644 index 000000000..8b69fcceb --- /dev/null +++ b/fs/cifs/rfc1002pdu.h @@ -0,0 +1,74 @@ +/* + * 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 " |