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/* packet-ses.h
*
* Routine to dissect ISO 8327-1 OSI Session Protocol packets
*
* Yuriy Sidelnikov <YSidelnikov@hotmail.com>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef PACKET_SES_H
#define PACKET_SES_H
#define PROTO_STRING_SES "ISO 8327-1 OSI Session Protocol"
#define PROTO_STRING_SES_INFO "ISO 8327-1 OSI Session Protocol."
/*
* Dissect ses-encapsulated data in a TCP stream.
*/
/* session parms */
#define SES_EXT_CONT 0x01
/* protocol versions */
#define PROTOCOL_VERSION_1 0x01
#define PROTOCOL_VERSION_2 0x02
/* enclosure item */
#define BEGINNING_SPDU 0x01
#define END_SPDU 0x02
#define DATA_TOKEN 0x01
#define RELEASE_TOKEN 0x40
#define SYNCHRONIZE_MINOR_TOKEN 0x04
#define MAJOR_ACTIVITY_TOKEN 0x10
/* session user req flag */
#define HALF_DUPLEX_FUNCTION_UNIT 0x0001
#define DUPLEX_FUNCTION_UNIT 0x0002
#define EXPEDITED_DATA_FUNCTION_UNIT 0x0004
#define MINOR_SYNCHRONIZE_FUNCTION_UNIT 0x0008
#define MAJOR_SYNCHRONIZE_FUNCTION_UNIT 0x0010
#define RESYNCHRONIZE_FUNCTION_UNIT 0x0020
#define ACTIVITY_MANAGEMENT_FUNCTION_UNIT 0x0040
#define NEGOTIATED_RELEASE_FUNCTION_UNIT 0x0080
#define CAPABILITY_DATA_FUNCTION_UNIT 0x0100
#define EXCEPTION_FUNCTION_UNIT 0x0200
#define TYPED_DATA_FUNCTION_UNIT 0x0400
#define SYMMETRIC_SYNCHRONIZE_FUNCTION_UNIT 0x0800
#define DATA_SEPARATION_FUNCTION_UNIT 0x1000
#define SES_EXCEPTION_REPORT 0x2000
/*define SES_EXCEPTION_REPORT 0 */
#define SES_DATA_TRANSFER 1
#define SES_GIVE_TOKENS 1
#define SES_PLEASE_TOKENS 2
#define SES_EXPEDITED 5
#define SES_PREPARE 7
#define SES_NOT_FINISHED 8
#define SES_FINISH 9
#define SES_DISCONNECT 10
#define SES_REFUSE 12
#define SES_CONNECTION_REQUEST 13
#define SES_CONNECTION_ACCEPT 14
#define SES_CONNECTION_DATA_OVERFLOW 15
#define SES_OVERFLOW_ACCEPT 16
#define SES_GIVE_TOKENS_CONFIRM 21
#define SES_GIVE_TOKENS_ACK 22
#define SES_ABORT 25
#define SES_ABORT_ACCEPT 26
/*#define SES_ACTIVITY_INTERRUPT 25
#define SES_ACTIVITY_INTERRUPT_ACK 26 */
#define SES_ACTIVITY_RESUME 29
#define SES_TYPED_DATA 33
#define SES_RESYNCHRONIZE_ACK 34
#define SES_MAJOR_SYNC_POINT 41
/*#define SES_MAJOR_SYNC_POINT 41
#define SES_ACTIVITY_END 41 */
#define SES_MAJOR_SYNC_ACK 42
#define SES_ACTIVITY_START 45
#define SES_EXCEPTION_DATA 48
#define SES_MINOR_SYNC_POINT 49
#define SES_MINOR_SYNC_ACK 50
#define SES_RESYNCHRONIZE 53
#define SES_ACTIVITY_DISCARD 57
#define SES_ACTIVITY_DISCARD_ACK 58
#define SES_CAPABILITY 61
#define SES_CAPABILITY_DATA_ACK 62
#define CLSES_UNIT_DATA 64
/*
reason code
0: Rejection by called SS-user; reason not specified.
1: Rejection by called SS-user due to temporary congestion.
2: Rejection by called SS-user. Subsequent octets may be used
for user data up to a length of 512 octets if Protocol
Version 1 has been selected, and up to a length such that
the total length (including SI and LI) of the SPDU does
not exceed 65 539 octets if Protocol Version 2 has been
selected.
128 + 1: Session Selector unknown.
128 + 2: SS-user not attached to SSAP.
128 + 3: SPM congestion at connect time.
128 + 4: Proposed protocol versions not supported.
128 + 5: Rejection by the SPM; reason not specified.
128 + 6: Rejection by the SPM; implementation restriction stated in the
PICS.
*/
#define reason_not_specified 0
#define temporary_congestion 1
#define Subsequent 2
#define Session_Selector_unknown 128+1
#define SS_user_not_attached_to_SSAP 128+2
#define SPM_congestion_at_connect_time 128+3
#define versions_not_supported 128+4
#define SPM_reason_not_specified 128+5
#define SPM_implementation_restriction 128+6
#define NON_TOKENS_SPDU FALSE
#define TOKENS_SPDU TRUE
#define TWO_BYTE_LEN 0xff
/* PGI's */
#define Connection_Identifier 1
#define Connect_Accept_Item 5
#define Linking_Information 33
#define User_Data 193
#define Extended_User_Data 194
/* PI's */
#define Called_SS_user_Reference 9
#define Calling_SS_user_Reference 10
#define Common_Reference 11
#define Additional_Reference_Information 12
#define Sync_Type_Item 15
#define Token_Item 16
#define Transport_Disconnect 17
#define Protocol_Options 19
#define Session_Requirement 20
#define TSDU_Maximum_Size 21
#define Version_Number 22
#define Initial_Serial_Number 23
#define Prepare_Type 24
#define EnclosureItem 25
#define Token_Setting_Item 26
#define Resync_Type 27
#define Activity_Identifier 41
#define Serial_Number 42
#define Reflect_Parameter 49
#define Reason_Code 50
#define Calling_Session_Selector 51
#define Called_Session_Selector 52
#define Second_Resync_Type 53
#define Second_Serial_Number 54
#define Second_Initial_Serial_Number 55
#define Upper_Limit_Serial_Number 56
#define Large_Initial_Serial_Number 57
#define Large_Second_Initial_Serial_Number 58
#define Data_Overflow 60
/* transport disconnect values */
#define transport_connection_is_released 0x01
#define user_abort 0x02
#define protocol_error 0x04
#define no_reason 0x08
#define implementation_restriction 0x10
#define SESSION_NO_ABORT 0
#define SESSION_USER_ABORT 1
#define SESSION_PROVIDER_ABORT 2
/* data for presentation selector */
struct SESSION_DATA_STRUCTURE
{
guint8 spdu_type;
guint8 abort_type;
guint8 pres_ctx_id;
guint32 ros_op;
gboolean rtse_reassemble;
};
extern value_string_ext ses_vals_ext;
#endif
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 8
* tab-width: 8
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
* :indentSize=8:tabSize=8:noTabs=false:
*/
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