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- /* SPDX-License-Identifier: LGPL-2.1 */
- /*
- *
- * Protocol Data Unit definitions for RFC 1001/1002 support
- *
- * Copyright (c) International Business Machines Corp., 2004
- * Author(s): Steve French ([email protected])
- *
- */
- /* 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 "
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