epan/dissectors/asn1/gprscdr/packet-gprscdr-template.c

   1 /* packet-gprscdr-template.c
   2  * Copyright 2011 , Anders Broman <anders.broman [AT] ericsson.com>
   3  *
   4  * Updates and corrections:
   5  * Copyright 2018-2022, Joakim Karlsson <oakimk@gmail.com>
   6  *
   7  * Wireshark - Network traffic analyzer
   8  * By Gerald Combs <gerald@wireshark.org>
   9  * Copyright 1998 Gerald Combs
  10  *
  11  * SPDX-License-Identifier: GPL-2.0-or-later
  12  * References: 3GPP TS 32.298 V17.4.0
  13  */
  14
  15 #include "config.h"
  16
  17 #include <epan/packet.h>
  18 #include <epan/expert.h>
  19 #include <epan/asn1.h>
  20 #include <wsutil/array.h>
  21
  22 #include "packet-ber.h"
  23 #include "packet-gsm_map.h"
  24 #include "packet-gsm_a_common.h"
  25 #include "packet-e212.h"
  26 #include "packet-gprscdr.h"
  27 #include "packet-gtp.h"
  28 #include "packet-gtpv2.h"
  29
  30 #define PNAME  "GPRS CDR"
  31 #define PSNAME "GPRSCDR"
  32 #define PFNAME "gprscdr"
  33
  34 void proto_register_gprscdr(void);
  35
  36 /* Define the GPRS CDR proto */
  37 static int proto_gprscdr;
  38
  39 #include "packet-gprscdr-hf.c"
  40
  41 static int ett_gprscdr;
  42 static int ett_gprscdr_timestamp;
  43 static int ett_gprscdr_plmn_id;
  44 static int ett_gprscdr_pdp_pdn_type;
  45 static int ett_gprscdr_eps_qos_arp;
  46 static int ett_gprscdr_managementextension_information;
  47 static int ett_gprscdr_userlocationinformation;
  48 #include "packet-gprscdr-ett.c"
  49
  50 static expert_field ei_gprscdr_not_dissected;
  51 static expert_field ei_gprscdr_choice_not_found;
  52
  53 /* Global variables */
  54 static const char *obj_id;
  55
  56 static const value_string gprscdr_daylight_saving_time_vals[] = {
  57     {0, "No adjustment"},
  58     {1, "+1 hour adjustment for Daylight Saving Time"},
  59     {2, "+2 hours adjustment for Daylight Saving Time"},
  60     {3, "Reserved"},
  61     {0, NULL}
  62 };
  63
  64 /* 3GPP-RAT-Type
  65 *  3GPP TS 29.061
  66 */
  67 static const value_string gprscdr_rat_type_vals[] = {
  68     {0, "Reserved"},
  69     {1, "UTRAN"},
  70     {2, "GERAN"},
  71     {3, "WLAN"},
  72     {4, "GAN"},
  73     {5, "HSPA Evolution"},
  74     {6, "EUTRAN"},
  75     {7, "Virtual"},
  76     {8, "EUTRAN-NB-IoT"},
  77     {9, "LTE-M"},
  78     {10, "NR"},
  79     /* 11-100 Spare for future use TS 29.061 */
  80     {101, "IEEE 802.16e"},
  81     {102, "3GPP2 eHRPD"},
  82     {103, "3GPP2 HRPD"},
  83     /* 104-255 Spare for future use TS 29.061 */
  84     {0, NULL}
  85 };
  86
  87 static int
  88 dissect_gprscdr_uli(tvbuff_t *tvb _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int type) {
  89   proto_tree *ext_tree_uli;
  90   unsigned    length;
  91
  92   length = tvb_reported_length(tvb);
  93   ext_tree_uli = proto_tree_add_subtree(tree, tvb, 0, length, ett_gprscdr_userlocationinformation, NULL, "UserLocationInformation");
  94
  95   switch (type) {
  96   case 1:
  97       /* For GGSN/EGGSN-CDR,
  98        * this octet string is a 1:1 copy of the contents (i.e. starting with octet 4) of the
  99        * User Location Information (ULI) information element specified in 29.060, ch7.7.51.
 100        */
 101       dissect_gtp_uli(tvb, 0, actx->pinfo, ext_tree_uli, NULL);
 102       break;
 103   case 2:
 104       /* For SGW/PGW-CDR,
 105        * this octet string is a 1:1 copy of the contents (i.e. starting with octet 5) of the
 106        * User Location Information (ULI) information element specified in 29.274, ch8.21.
 107        */
 108       dissect_gtpv2_uli(tvb, actx->pinfo, ext_tree_uli, NULL, length, 0, 0, NULL);
 109       break;
 110   default:
 111       proto_tree_add_expert(ext_tree_uli, actx->pinfo, &ei_gprscdr_not_dissected, tvb, 0, length);
 112       break;
 113   }
 114
 115   return length;
 116 }
 117
 118 #include "packet-gprscdr-fn.c"
 119
 120
 121
 122 /* Register all the bits needed with the filtering engine */
 123 void
 124 proto_register_gprscdr(void)
 125 {
 126   /* List of fields */
 127   static hf_register_info hf[] = {
 128 #include "packet-gprscdr-hfarr.c"
 129   };
 130
 131   /* List of subtrees */
 132   static int *ett[] = {
 133     &ett_gprscdr,
 134     &ett_gprscdr_timestamp,
 135     &ett_gprscdr_plmn_id,
 136     &ett_gprscdr_pdp_pdn_type,
 137     &ett_gprscdr_eps_qos_arp,
 138     &ett_gprscdr_managementextension_information,
 139     &ett_gprscdr_userlocationinformation,
 140 #include "packet-gprscdr-ettarr.c"
 141         };
 142
 143   static ei_register_info ei[] = {
 144     { &ei_gprscdr_not_dissected, { "gprscdr.not_dissected", PI_UNDECODED, PI_WARN, "Not dissected", EXPFILL }},
 145     { &ei_gprscdr_choice_not_found, { "gprscdr.error.choice_not_found", PI_MALFORMED, PI_WARN, "GPRS CDR Error: This choice field(Record type) was not found", EXPFILL }},
 146   };
 147
 148   expert_module_t* expert_gprscdr;
 149
 150   proto_gprscdr = proto_register_protocol(PNAME, PSNAME, PFNAME);
 151
 152   proto_register_field_array(proto_gprscdr, hf, array_length(hf));
 153   proto_register_subtree_array(ett, array_length(ett));
 154   expert_gprscdr = expert_register_protocol(proto_gprscdr);
 155   expert_register_field_array(expert_gprscdr, ei, array_length(ei));
 156 }
 157
 158 /* The registration hand-off routine */
 159
 160 /*
 161  * Editor modelines
 162  *
 163  * Local Variables:
 164  * c-basic-offset: 2
 165  * tab-width: 8
 166  * indent-tabs-mode: nil
 167  * End:
 168  *
 169  * ex: set shiftwidth=2 tabstop=8 expandtab:
 170  * :indentSize=2:tabSize=8:noTabs=true:
 171  */