epan/dissectors/packet-ses.h

   1 /* packet-ses.h
   2 *
   3 * Routine to dissect ISO 8327-1 OSI Session Protocol packets
   4 *
   5 * $Id$
   6 *
   7 * Yuriy Sidelnikov <YSidelnikov@hotmail.com>
   8 *
   9 * Ethereal - Network traffic analyzer
  10 * By Gerald Combs <gerald@ethereal.com>
  11 * Copyright 1998 Gerald Combs
  12 *
  13 * This program is free software; you can redistribute it and/or
  14 * modify it under the terms of the GNU General Public License
  15 * as published by the Free Software Foundation; either version 2
  16 * of the License, or (at your option) any later version.
  17 *
  18 * This program is distributed in the hope that it will be useful,
  19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21 * GNU General Public License for more details.
  22 *
  23 * You should have received a copy of the GNU General Public License
  24 * along with this program; if not, write to the Free Software
  25 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  26 */
  27
  28 #define PROTO_STRING_SES "ISO 8327-1 OSI Session Protocol"
  29 #define PROTO_STRING_SES_INFO "ISO 8327-1 OSI Session Protocol."
  30 /*
  31 * Dissect ses-encapsulated data in a TCP stream.
  32 */
  33
  34 /* session parms */
  35 #define  SES_EXT_CONT           0x01
  36
  37 /* protocol versions  */
  38 #define  PROTOCOL_VERSION_1     0x01
  39 #define  PROTOCOL_VERSION_2     0x02
  40
  41 /* enclosure item */
  42 #define BEGINNING_SPDU          0x01
  43 #define END_SPDU                0x02
  44
  45 #define DATA_TOKEN                              0x01
  46 #define RELEASE_TOKEN                           0x40
  47 #define SYNCHRONIZE_MINOR_TOKEN                 0x04
  48 #define MAJOR_ACTIVITY_TOKEN                    0x10
  49
  50 /* session user req  flag   */
  51 #define HALF_DUPLEX_FUNCTION_UNIT               0x0001
  52 #define DUPLEX_FUNCTION_UNIT                    0x0002
  53 #define EXPEDITED_DATA_FUNCTION_UNIT            0x0004
  54 #define MINOR_SYNCHRONIZE_FUNCTION_UNIT         0x0008
  55 #define MAJOR_SYNCHRONIZE_FUNCTION_UNIT         0x0010
  56 #define RESYNCHRONIZE_FUNCTION_UNIT             0x0020
  57 #define ACTIVITY_MANAGEMENT_FUNCTION_UNIT       0x0040
  58 #define NEGOTIATED_RELEASE_FUNCTION_UNIT        0x0080
  59 #define CAPABILITY_DATA_FUNCTION_UNIT           0x0100
  60 #define EXCEPTION_FUNCTION_UNIT                 0x0200
  61 #define TYPED_DATA_FUNCTION_UNIT                0x0400
  62 #define SYMMETRIC_SYNCHRONIZE_FUNCTION_UNIT     0x0800
  63 #define DATA_SEPARATION_FUNCTION_UNIT           0x1000
  64
  65 #define SES_EXCEPTION_REPORT                    0x2000
  66 /*define SES_EXCEPTION_REPORT                   0    */
  67 #define SES_DATA_TRANSFER                       1
  68 #define SES_GIVE_TOKENS                         1
  69 #define SES_PLEASE_TOKENS                       2
  70 #define SES_EXPEDITED                           5
  71 #define SES_PREPARE                             7
  72 #define SES_NOT_FINISHED                        8
  73 #define SES_FINISH                              9
  74 #define SES_DISCONNECT                          10
  75 #define SES_REFUSE                              12
  76 #define SES_CONNECTION_REQUEST                  13
  77 #define SES_CONNECTION_ACCEPT                   14
  78 #define SES_CONNECTION_DATA_OVERFLOW            15
  79 #define SES_OVERFLOW_ACCEPT                     16
  80 #define SES_GIVE_TOKENS_CONFIRM                 21
  81 #define SES_GIVE_TOKENS_ACK                     22
  82 #define SES_ABORT                               25
  83 #define SES_ABORT_ACCEPT                        26
  84 /*#define SES_ACTIVITY_INTERRUPT                25
  85 #define SES_ACTIVITY_INTERRUPT_ACK              26  */
  86 #define SES_ACTIVITY_RESUME                     29
  87 #define SES_TYPED_DATA                          33
  88 #define SES_RESYNCHRONIZE_ACK                   34
  89 #define SES_MAJOR_SYNC_POINT                    41
  90 /*#define SES_MAJOR_SYNC_POINT                  41
  91 #define SES_ACTIVITY_END                        41  */
  92 #define SES_MAJOR_SYNC_ACK                      42
  93 #define SES_ACTIVITY_START                      45
  94 #define SES_EXCEPTION_DATA                      48
  95 #define SES_MINOR_SYNC_POINT                    49
  96 #define SES_MINOR_SYNC_ACK                      50
  97 #define SES_RESYNCHRONIZE                       53
  98 #define SES_ACTIVITY_DISCARD                    57
  99 #define SES_ACTIVITY_DISCARD_ACK                58
 100 #define SES_CAPABILITY                          61
 101 #define SES_CAPABILITY_DATA_ACK                 62
 102
 103 /*
 104 reason code
 105         0:      Rejection by called SS-user; reason not specified.
 106         1:      Rejection by called SS-user due to temporary congestion.
 107         2:      Rejection by called SS-user. Subsequent octets may be used
 108                 for user data up to a length of 512 octets if Protocol
 109                 Version 1 has been selected, and up to a length such that
 110                 the total length (including SI and LI)  of the SPDU does
 111                 not exceed 65 539 octets if Protocol Version 2 has been
 112                 selected.
 113         128 + 1:        Session Selector unknown.
 114         128 + 2:        SS-user not attached to SSAP.
 115         128 + 3:        SPM congestion at connect time.
 116         128 + 4:        Proposed protocol versions not supported.
 117         128 + 5:        Rejection by the SPM; reason not specified.
 118         128 + 6:        Rejection by the SPM; implementation restriction stated in the
 119                         PICS.
 120 */
 121 #define reason_not_specified            0
 122 #define temporary_congestion            1
 123 #define Subsequent                      2
 124 #define Session_Selector_unknown        128+1
 125 #define SS_user_not_attached_to_SSAP    128+2
 126 #define SPM_congestion_at_connect_time  128+3
 127 #define versions_not_supported          128+4
 128 #define SPM_reason_not_specified        128+5
 129 #define SPM_implementation_restriction  128+6
 130
 131 #define         NON_TOKENS_SPDU                 FALSE
 132 #define         TOKENS_SPDU                     TRUE
 133
 134 #define         TWO_BYTE_LEN                    0xff
 135
 136 /* PGI's */
 137
 138 #define Connection_Identifier                   1
 139 #define Connect_Accept_Item                     5
 140 #define Linking_Information                     33
 141 #define User_Data                               193
 142 #define Extended_User_Data                      194
 143
 144 /* PI's */
 145
 146 #define Called_SS_user_Reference                9
 147 #define Calling_SS_user_Reference               10
 148 #define Common_Reference                        11
 149 #define Additional_Reference_Information        12
 150
 151 #define Sync_Type_Item                          15
 152 #define Token_Item                              16
 153 #define Transport_Disconnect                    17
 154
 155 #define Protocol_Options                        19
 156 #define Session_Requirement                     20
 157 #define TSDU_Maximum_Size                       21
 158 #define Version_Number                          22
 159 #define Initial_Serial_Number                   23
 160 #define Prepare_Type                            24
 161 #define EnclosureItem                           25
 162 #define Token_Setting_Item                      26
 163 #define Resync_Type                             27
 164
 165 #define Serial_Number                           42
 166
 167 #define Reflect_Parameter                       49
 168
 169 #define Reason_Code                             50
 170 #define Calling_Session_Selector                51
 171 #define Called_Session_Selector                 52
 172 #define Second_Resync_Type                      53
 173 #define Second_Serial_Number                    54
 174 #define Second_Initial_Serial_Number            55
 175 #define Upper_Limit_Serial_Number               56
 176 #define Large_Initial_Serial_Number             57
 177 #define Large_Second_Initial_Serial_Number      58
 178
 179 #define Data_Overflow                           60
 180
 181 /* transport disconnect values */
 182 #define         transport_connection_is_released        0x01
 183 #define         user_abort                              0x02
 184 #define         protocol_error                          0x04
 185 #define         no_reason                               0x08
 186
 187
 188 #define         SESSION_NO_ABORT                0
 189 #define         SESSION_USER_ABORT              1
 190 #define         SESSION_PROVIDER_ABORT          2
 191
 192 /* data for presentation selector      */
 193 struct SESSION_DATA_STRUCTURE
 194 {
 195         guint8  spdu_type;
 196         guint8  abort_type;
 197 };
 198 #define         implementation_restriction              0x10