epan/dissectors/asn1/atn-ulcs/packet-atn-ulcs-template.h

   1 /* packet-atn-ulcs.h
   2  * Definitions for atn packet disassembly structures and routines
   3  *
   4  * Wireshark - Network traffic analyzer
   5  * By Gerald Combs <gerald@wireshark.org>
   6  * Copyright 1998 Gerald Combs
   7  *
   8  * SPDX-License-Identifier: GPL-2.0-or-later
   9  */
  10 #ifndef PACKET_ATN_ULCS_H
  11 #define PACKET_ATN_ULCS_H
  12
  13 #include "packet.h"
  14
  15 #include <epan/wmem_scopes.h>
  16
  17 enum msg_type {
  18     um,
  19     dm,
  20     no_msg
  21 };
  22
  23 enum ae_qualifier {
  24     ads = 0,
  25     cma =1, /* contact management (CM) */
  26     cpdlc = 2, /* "plain old" CPDLC */
  27     ati = 3 ,
  28     arf =10 ,
  29     met =11,
  30     gac =12,
  31     pmcpdlc =22,  /* "protected mode" CPDLC */
  32     unknown = -1
  33 };
  34
  35 typedef struct atn_conversation_t {
  36     int ae_qualifier; /* A/G application type  */
  37 } atn_conversation_t;
  38
  39 atn_conversation_t * create_atn_conversation(
  40     address*,
  41     uint16_t,
  42     address*,
  43     atn_conversation_t*);
  44
  45 atn_conversation_t * find_atn_conversation(
  46     address*,
  47     uint16_t,
  48     address*);
  49
  50 /* struct for conversation data reconstruction used in AARQ and AARE */
  51 /* if transport data is larger than 32 octets AARQ/AARE is contained */
  52 /* within DT frames which have only dest_ref, but no src_ref */
  53 /* if AARQ/AARQ is contained within CR/CC only src_ref is present in CR */
  54 /* while CC provides src_ref and dstref */
  55 typedef struct aarq_data_t {
  56     bool aarq_pending; /* flag tells whether AARQ/sequence is pending (true)  */
  57                            /* required not to mix up different AARQ/AARE sequences */
  58                            /* during simultaneous establishment of transport connections */
  59                            /* i.e. GND facility initialises cpcstart and cmcontact at the same time */
  60     atn_conversation_t* cv; /* pointer to AARQ conversation */
  61 } aarq_data_t;
  62
  63 wmem_tree_t *get_atn_conversation_tree(void);
  64
  65 uint32_t get_aircraft_24_bit_address_from_nsap(packet_info *);
  66 int check_heur_msg_type(packet_info *);
  67
  68 #endif
  69
  70 /*
  71  * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
  72  *
  73  * Local variables:
  74  * c-basic-offset: 4
  75  * tab-width: 8
  76  * indent-tabs-mode: nil
  77  * End:
  78  *
  79  * vi: set shiftwidth=4 tabstop=8 expandtab:
  80  * :indentSize=4:tabSize=8:noTabs=true:
  81  */