1 /* packet-gprscdr-template.c
2 * Copyright 2011 , Anders Broman <anders.broman [AT] ericsson.com>
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 * References: 3GPP TS 32.298 V16.7.0
10 */
11
12 #include "config.h"
13
14 #include <epan/packet.h>
15 #include <epan/expert.h>
16 #include <epan/asn1.h>
17
18 #include "packet-ber.h"
19 #include "packet-gsm_map.h"
20 #include "packet-gsm_a_common.h"
21 #include "packet-e212.h"
22 #include "packet-gprscdr.h"
23 #include "packet-gtp.h"
24 #include "packet-gtpv2.h"
25
26 #define PNAME "GPRS CDR"
27 #define PSNAME "GPRSCDR"
28 #define PFNAME "gprscdr"
29
30 void proto_register_gprscdr(void);
31
32 /* Define the GPRS CDR proto */
33 static int proto_gprscdr = -1;
34
35 #include "packet-gprscdr-hf.c"
36
37 static int ett_gprscdr = -1;
38 static int ett_gprscdr_timestamp = -1;
39 static int ett_gprscdr_plmn_id = -1;
40 static int ett_gprscdr_pdp_pdn_type = -1;
41 static int ett_gprscdr_eps_qos_arp = -1;
42 static int ett_gprscdr_managementextension_information = -1;
43 static int ett_gprscdr_userlocationinformation = -1;
44 #include "packet-gprscdr-ett.c"
45
46 static expert_field ei_gprscdr_not_dissected = EI_INIT;
47 static expert_field ei_gprscdr_choice_not_found = EI_INIT;
48
49 /* Global variables */
50 static const char *obj_id = NULL;
51
52 static const value_string gprscdr_daylight_saving_time_vals[] = {
53 {0, "No adjustment"},
54 {1, "+1 hour adjustment for Daylight Saving Time"},
55 {2, "+2 hours adjustment for Daylight Saving Time"},
56 {3, "Reserved"},
57 {0, NULL}
58 };
59
60 /* 3GPP-RAT-Type
61 * 3GPP TS 29.061
62 */
63 static const value_string gprscdr_rat_type_vals[] = {
64 {0, "Reserved"},
65 {1, "UTRAN"},
66 {2, "GERAN"},
67 {3, "WLAN"},
68 {4, "GAN"},
69 {5, "HSPA Evolution"},
70 {6, "EUTRAN"},
71 {7, "Virtual"},
72 {8, "EUTRAN-NB-IoT"},
73 {9, "LTE-M"},
74 {10, "NR"},
75 /* 11-100 Spare for future use TS 29.061 */
76 {101, "IEEE 802.16e"},
77 {102, "3GPP2 eHRPD"},
78 {103, "3GPP2 HRPD"},
79 /* 104-255 Spare for future use TS 29.061 */
80 {0, NULL}
81 };
82
83 static int
dissect_gprscdr_uli(tvbuff_t * tvb _U_,asn1_ctx_t * actx _U_,proto_tree * tree _U_,int type)84 dissect_gprscdr_uli(tvbuff_t *tvb _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int type) {
85 proto_tree *ext_tree_uli;
86 guint length;
87
88 length = tvb_reported_length(tvb);
89 ext_tree_uli = proto_tree_add_subtree(tree, tvb, 0, length, ett_gprscdr_userlocationinformation, NULL, "UserLocationInformation");
90
91 switch (type) {
92 case 1:
93 /* For GGSN/EGGSN-CDR,
94 * this octet string is a 1:1 copy of the contents (i.e. starting with octet 4) of the
95 * User Location Information (ULI) information element specified in 29.060, ch7.7.51.
96 */
97 dissect_gtp_uli(tvb, 0, actx->pinfo, ext_tree_uli, NULL);
98 break;
99 case 2:
100 /* For SGW/PGW-CDR,
101 * this octet string is a 1:1 copy of the contents (i.e. starting with octet 5) of the
102 * User Location Information (ULI) information element specified in 29.274, ch8.21.
103 */
104 dissect_gtpv2_uli(tvb, actx->pinfo, ext_tree_uli, NULL, length, 0, 0, NULL);
105 break;
106 default:
107 proto_tree_add_expert(ext_tree_uli, actx->pinfo, &ei_gprscdr_not_dissected, tvb, 0, length);
108 break;
109 }
110
111 return length;
112 }
113
114 #include "packet-gprscdr-fn.c"
115
116
117
118 /* Register all the bits needed with the filtering engine */
119 void
proto_register_gprscdr(void)120 proto_register_gprscdr(void)
121 {
122 /* List of fields */
123 static hf_register_info hf[] = {
124 #include "packet-gprscdr-hfarr.c"
125 };
126
127 /* List of subtrees */
128 static gint *ett[] = {
129 &ett_gprscdr,
130 &ett_gprscdr_timestamp,
131 &ett_gprscdr_plmn_id,
132 &ett_gprscdr_pdp_pdn_type,
133 &ett_gprscdr_eps_qos_arp,
134 &ett_gprscdr_managementextension_information,
135 &ett_gprscdr_userlocationinformation,
136 #include "packet-gprscdr-ettarr.c"
137 };
138
139 static ei_register_info ei[] = {
140 { &ei_gprscdr_not_dissected, { "gprscdr.not_dissected", PI_UNDECODED, PI_WARN, "Not dissected", EXPFILL }},
141 { &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 }},
142 };
143
144 expert_module_t* expert_gprscdr;
145
146 proto_gprscdr = proto_register_protocol(PNAME, PSNAME, PFNAME);
147
148 proto_register_field_array(proto_gprscdr, hf, array_length(hf));
149 proto_register_subtree_array(ett, array_length(ett));
150 expert_gprscdr = expert_register_protocol(proto_gprscdr);
151 expert_register_field_array(expert_gprscdr, ei, array_length(ei));
152 }
153
154 /* The registration hand-off routine */
155
156 /*
157 * Editor modelines
158 *
159 * Local Variables:
160 * c-basic-offset: 2
161 * tab-width: 8
162 * indent-tabs-mode: nil
163 * End:
164 *
165 * ex: set shiftwidth=2 tabstop=8 expandtab:
166 * :indentSize=2:tabSize=8:noTabs=true:
167 */
168