/* mod_ntlm file: $Id: rfcnb-priv.h,v 1.3 2003/02/21 01:55:14 casz Exp $ */

#ifndef RFCNB_PRIV_H
#define RFCNB_PRIV_H

/* UNIX RFCNB (RFC1001/RFC1002) NetBIOS implementation
 *
 * Version 1.0 RFCNB Defines
 *
 * Copyright (C) Richard Sharpe 1996
 *
 */

/*
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.  This program 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 General Public License for more details.  You
 * should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 675 Mass Ave, Cambridge, MA 02139, USA. */

/* Defines we need */

#define GLOBAL extern

#include "rfcnb-error.h"
#include "rfcnb-common.h"
#include "byteorder.h"

#ifdef RFCNB_PORT
#define RFCNB_Default_Port RFCNB_PORT
#else
#define RFCNB_Default_Port 139
#endif

#define RFCNB_MAX_STATS 1

/* Protocol defines we need */

#define RFCNB_SESSION_MESSAGE 0
#define RFCNB_SESSION_REQUEST 0x81
#define RFCNB_SESSION_ACK 0x82
#define RFCNB_SESSION_REJ 0x83
#define RFCNB_SESSION_RETARGET 0x84
#define RFCNB_SESSION_KEEP_ALIVE 0x85

/* Structures      */

typedef struct redirect_addr *redirect_ptr;

struct redirect_addr {

    struct in_addr ip_addr;
    int port;
    redirect_ptr next;

};

typedef struct RFCNB_Con {

    int fd;                     /* File descripter for TCP/IP connection */
    int rfc_errno;              /* last error                            */
    int timeout;                /* How many milli-secs before IO times out
                                 */
    int redirects;              /* How many times we were redirected     */
    struct redirect_addr *redirect_list;        /* First is first address */
    struct redirect_addr *last_addr;

} RFCNB_Con;

typedef char RFCNB_Hdr[4];      /* The header is 4 bytes long with  */
                                    /* char[0] as the type, char[1] the */
                                    /* flags, and char[2..3] the length */

/* Macros to extract things from the header. These are for portability
 * between architecture types where we are worried about byte order     */

#define RFCNB_Pkt_Hdr_Len        4
#define RFCNB_Pkt_Sess_Len       72
#define RFCNB_Pkt_Retarg_Len     10
#define RFCNB_Pkt_Nack_Len       5
#define RFCNB_Pkt_Type_Offset    0
#define RFCNB_Pkt_Flags_Offset   1
#define RFCNB_Pkt_Len_Offset     2      /* Length is 2 bytes plus a flag
                                         * bit */
#define RFCNB_Pkt_N1Len_Offset   4
#define RFCNB_Pkt_Called_Offset  5
#define RFCNB_Pkt_N2Len_Offset   38
#define RFCNB_Pkt_Calling_Offset 39
#define RFCNB_Pkt_Error_Offset   4
#define RFCNB_Pkt_IP_Offset      4
#define RFCNB_Pkt_Port_Offset    8

/* The next macro isolates the length of a packet, including the bit in
 * the flags
 *     */

#define RFCNB_Pkt_Len(p)  (PVAL((p), 3) | (PVAL((p), 2) << 8) |     \
                          ((PVAL((p), RFCNB_Pkt_Flags_Offset) & 0x01) << 16))

#define RFCNB_Put_Pkt_Len(p, v) ((p)[1] = (((v) >> 16) & 1)); \
                                ((p)[2] = (((v) >> 8) & 0xFF)); \
                                ((p)[3] = ((v) & 0xFF));

#define RFCNB_Pkt_Type(p) (CVAL((p), RFCNB_Pkt_Type_Offset))

/* Static variables */

/* Only declare this if not defined */

#ifndef RFCNB_ERRNO
static int RFCNB_errno;
static int RFCNB_saved_errno;   /* Save this from point of error */
#endif

#endif