helpers/basic_auth/MSNT/rfcnb-priv.h

   1 /* UNIX RFCNB (RFC1001/RFC1002) NetBIOS implementation
   2  *
   3  * Version 1.0
   4  * RFCNB Defines
   5  *
   6  * Copyright (C) Richard Sharpe 1996
   7  *
   8  */
   9
  10 /*
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24  */
  25
  26 /* Defines we need */
  27
  28
  29 #define GLOBAL extern
  30
  31 #include "rfcnb-error.h"
  32 #include "rfcnb-common.h"
  33 #include "byteorder.h"
  34
  35 #ifdef RFCNB_PORT
  36 #define RFCNB_Default_Port RFCNB_PORT
  37 #else
  38 #define RFCNB_Default_Port 139
  39 #endif
  40
  41 #define RFCNB_MAX_STATS 1
  42
  43 /* Protocol defines we need */
  44
  45 #define RFCNB_SESSION_MESSAGE 0
  46 #define RFCNB_SESSION_REQUEST 0x81
  47 #define RFCNB_SESSION_ACK 0x82
  48 #define RFCNB_SESSION_REJ 0x83
  49 #define RFCNB_SESSION_RETARGET 0x84
  50 #define RFCNB_SESSION_KEEP_ALIVE 0x85
  51
  52 /* Structures      */
  53
  54 typedef struct redirect_addr *redirect_ptr;
  55
  56 struct redirect_addr {
  57
  58     struct in_addr ip_addr;
  59     int port;
  60     redirect_ptr next;
  61
  62 };
  63
  64 typedef struct RFCNB_Con {
  65
  66     int fd;                     /* File descripter for TCP/IP connection */
  67     int rfc_errno;              /* last error                            */
  68     int timeout;                /* How many milli-secs before IO times out */
  69     int redirects;              /* How many times we were redirected     */
  70     struct redirect_addr *redirect_list;        /* First is first address */
  71     struct redirect_addr *last_addr;
  72
  73 } RFCNB_Con;
  74
  75 typedef char RFCNB_Hdr[4];      /* The header is 4 bytes long with  */
  76                                     /* char[0] as the type, char[1] the */
  77                                     /* flags, and char[2..3] the length */
  78
  79 /* Macros to extract things from the header. These are for portability
  80  * between architecture types where we are worried about byte order     */
  81
  82 #define RFCNB_Pkt_Hdr_Len        4
  83 #define RFCNB_Pkt_Sess_Len       72
  84 #define RFCNB_Pkt_Retarg_Len     10
  85 #define RFCNB_Pkt_Nack_Len       5
  86 #define RFCNB_Pkt_Type_Offset    0
  87 #define RFCNB_Pkt_Flags_Offset   1
  88 #define RFCNB_Pkt_Len_Offset     2      /* Length is 2 bytes plus a flag bit */
  89 #define RFCNB_Pkt_N1Len_Offset   4
  90 #define RFCNB_Pkt_Called_Offset  5
  91 #define RFCNB_Pkt_N2Len_Offset   38
  92 #define RFCNB_Pkt_Calling_Offset 39
  93 #define RFCNB_Pkt_Error_Offset   4
  94 #define RFCNB_Pkt_IP_Offset      4
  95 #define RFCNB_Pkt_Port_Offset    8
  96
  97 /* The next macro isolates the length of a packet, including the bit in the
  98  * flags                                                                   */
  99
 100 #define RFCNB_Pkt_Len(p)  (PVAL(p, 3) | (PVAL(p, 2) << 8) |     \
 101                           ((PVAL(p, RFCNB_Pkt_Flags_Offset) & 0x01) << 16))
 102
 103 #define RFCNB_Put_Pkt_Len(p, v) (p[1] = ((v >> 16) & 1)); \
 104                                 (p[2] = ((v >> 8) & 0xFF)); \
 105                                 (p[3] = (v & 0xFF));
 106
 107 #define RFCNB_Pkt_Type(p) (CVAL(p, RFCNB_Pkt_Type_Offset))
 108
 109 /*typedef struct RFCNB_Hdr {
 110  *
 111  * unsigned char type;
 112  * unsigned char flags;
 113  * int16 len;
 114  *
 115  * } RFCNB_Hdr;
 116  *
 117  * typedef struct RFCNB_Sess_Pkt {
 118  * unsigned char type;
 119  * unsigned char flags;
 120  * int16 length;
 121  * unsigned char n1_len;
 122  * char called_name[33];
 123  * unsigned char n2_len;
 124  * char calling_name[33];
 125  * } RFCNB_Sess_Pkt;
 126  *
 127  *
 128  * typedef struct RFCNB_Nack_Pkt {
 129  *
 130  * struct RFCNB_Hdr hdr;
 131  * unsigned char error;
 132  *
 133  * } RFCNB_Nack_Pkt;
 134  *
 135  * typedef struct RFCNB_Retarget_Pkt {
 136  *
 137  * struct RFCNB_Hdr hdr;
 138  * int dest_ip;
 139  * unsigned char port;
 140  *
 141  * } RFCNB_Redir_Pkt; */
 142
 143 /* Static variables */
 144
 145 /* Only declare this if not defined */
 146
 147 #ifndef RFCNB_ERRNO
 148 extern int RFCNB_errno;
 149 extern int RFCNB_saved_errno;   /* Save this from point of error */
 150 #endif