/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2000-2001 Boris Popov
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */
#ifndef _NETSMB_NETBIOS_H_
#define _NETSMB_NETBIOS_H_

/*
 * make this file dirty...
 */
#ifndef _NETINET_IN_H_
#include <netinet/in.h>
#endif

#define NMB_TCP_PORT    137

#define NBPROTO_TCPSSN  1               /* NETBIOS session over TCP */
#define NBPROTO_IPXSSN  11              /* NETBIOS over IPX */

#define NB_NAMELEN      16
#define NB_ENCNAMELEN   NB_NAMELEN * 2
#define NB_MAXLABLEN    63

#define NB_MINSALEN     (sizeof(struct sockaddr_nb))

/*
 * name types
 */
#define NBT_WKSTA               0x00
#define NBT_MESSENGER           0x03
#define NBT_RAS_SERVER          0x06
#define NBT_DOMAIN_MASTER_BROWSER       0x1B
#define NBT_DOMAIN_CONTROLLER   0x1C
#define NBT_MASTER_BROWSER      0x1D
#define NBT_NETDDE              0x1F
#define NBT_SERVER              0x20
#define NBT_RAS_CLIENT          0x21

/*
 * Session packet types
 */
#define NB_SSN_MESSAGE          0x0
#define NB_SSN_REQUEST          0x81
#define NB_SSN_POSRESP          0x82
#define NB_SSN_NEGRESP          0x83
#define NB_SSN_RTGRESP          0x84
#define NB_SSN_KEEPALIVE        0x85

/*
 * resolver: Opcodes
 */
#define NBNS_OPCODE_QUERY       0x00
#define NBNS_OPCODE_REGISTER    0x05
#define NBNS_OPCODE_RELEASE     0x06
#define NBNS_OPCODE_WACK        0x07
#define NBNS_OPCODE_REFRESH     0x08
#define NBNS_OPCODE_RESPONSE    0x10    /* or'ed with other opcodes */

/*
 * resolver: NM_FLAGS
 */
#define NBNS_NMFLAG_BCAST       0x01
#define NBNS_NMFLAG_RA          0x08    /* recursion available */
#define NBNS_NMFLAG_RD          0x10    /* recursion desired */
#define NBNS_NMFLAG_TC          0x20    /* truncation occurred */
#define NBNS_NMFLAG_AA          0x40    /* authoritative answer */

/* 
 * resolver: Question types
 */
#define NBNS_QUESTION_TYPE_NB           0x0020
#define NBNS_QUESTION_TYPE_NBSTAT       0x0021

/* 
 * resolver: Question class 
 */
#define NBNS_QUESTION_CLASS_IN  0x0001

/*
 * resolver: Limits
 */
#define NBNS_MAXREDIRECTS       3       /* maximum number of accepted redirects */
#define NBDG_MAXSIZE            576     /* maximum nbns datagram size */

/*
 * NETBIOS addressing
 */
union nb_tran {
        struct sockaddr_in      x_in;
        /* struct sockaddr_ipx was here. */
};

struct nb_name {
        u_int           nn_type;
        u_char          nn_name[NB_NAMELEN + 1];
        u_char *        nn_scope;
};

/*
 * Socket address
 */
struct sockaddr_nb {
        u_char          snb_len;
        u_char          snb_family;
        union nb_tran   snb_tran;               /* transport */
        u_char          snb_name[1 + NB_ENCNAMELEN + 1];        /* encoded */
};

#define snb_addrin      snb_tran.x_in

#endif /* !_NETSMB_NETBIOS_H_ */