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+/*
+ * 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 "