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/* 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 */
typedef unsigned short uint16;
#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 err; /* 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))
/*typedef struct RFCNB_Hdr {
unsigned char type;
unsigned char flags;
int16 len;
} RFCNB_Hdr;
typedef struct RFCNB_Sess_Pkt {
unsigned char type;
unsigned char flags;
int16 length;
unsigned char n1_len;
char called_name[33];
unsigned char n2_len;
char calling_name[33];
} RFCNB_Sess_Pkt;
typedef struct RFCNB_Nack_Pkt {
struct RFCNB_Hdr hdr;
unsigned char error;
} RFCNB_Nack_Pkt;
typedef struct RFCNB_Retarget_Pkt {
struct RFCNB_Hdr hdr;
int dest_ip;
unsigned char port;
} RFCNB_Redir_Pkt; */
/* Static variables */
/* Only declare this if not defined */
#ifndef RFCNB_ERRNO
extern int RFCNB_errno;
extern int RFCNB_saved_errno; /* Save this from point of error */
#endif
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