1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
|
/* packet-m3ap.c
* Routines for M3 Application Protocol packet dissection
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*
* Reference: 3GPP TS 36.444 v16.0.0
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/strutil.h>
#include <epan/asn1.h>
#include <epan/sctpppids.h>
#include <epan/expert.h>
#include <epan/proto_data.h>
#include <epan/unit_strings.h>
#include <wsutil/array.h>
#include "packet-ber.h"
#include "packet-per.h"
#include "packet-e212.h"
#include "packet-gtpv2.h"
#define PNAME "M3 Application Protocol"
#define PSNAME "M3AP"
#define PFNAME "m3ap"
void proto_register_m3ap(void);
void proto_reg_handoff_m3ap(void);
/* M3AP uses port 36444 as recommended by IANA. */
#define M3AP_PORT 36444
static dissector_handle_t m3ap_handle;
#include "packet-m3ap-val.h"
/* Initialize the protocol and registered fields */
static int proto_m3ap;
static int hf_m3ap_Absolute_Time_ofMBMS_Data_value;
static int hf_m3ap_IPAddress_v4;
static int hf_m3ap_IPAddress_v6;
#include "packet-m3ap-hf.c"
/* Initialize the subtree pointers */
static int ett_m3ap;
static int ett_m3ap_IPAddress;
#include "packet-m3ap-ett.c"
static expert_field ei_m3ap_invalid_ip_address_len;
struct m3ap_private_data {
e212_number_type_t number_type;
};
enum{
INITIATING_MESSAGE,
SUCCESSFUL_OUTCOME,
UNSUCCESSFUL_OUTCOME
};
/* Global variables */
static uint32_t ProcedureCode;
static uint32_t ProtocolIE_ID;
/*static uint32_t ProtocolExtensionID; */
static int global_m3ap_port = M3AP_PORT;
static uint32_t message_type;
/* Dissector tables */
static dissector_table_t m3ap_ies_dissector_table;
static dissector_table_t m3ap_extension_dissector_table;
static dissector_table_t m3ap_proc_imsg_dissector_table;
static dissector_table_t m3ap_proc_sout_dissector_table;
static dissector_table_t m3ap_proc_uout_dissector_table;
static int dissect_ProtocolIEFieldValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *);
static int dissect_ProtocolExtensionFieldExtensionValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *);
static int dissect_InitiatingMessageValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *);
static int dissect_SuccessfulOutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *);
static int dissect_UnsuccessfulOutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *);
static struct m3ap_private_data*
m3ap_get_private_data(packet_info *pinfo)
{
struct m3ap_private_data *m3ap_data = (struct m3ap_private_data*)p_get_proto_data(pinfo->pool, pinfo, proto_m3ap, 0);
if (!m3ap_data) {
m3ap_data = wmem_new0(pinfo->pool, struct m3ap_private_data);
p_add_proto_data(pinfo->pool, pinfo, proto_m3ap, 0, m3ap_data);
}
return m3ap_data;
}
#include "packet-m3ap-fn.c"
static int dissect_ProtocolIEFieldValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
return (dissector_try_uint_new(m3ap_ies_dissector_table, ProtocolIE_ID, tvb, pinfo, tree, false, NULL)) ? tvb_captured_length(tvb) : 0;
}
static int dissect_ProtocolExtensionFieldExtensionValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
return (dissector_try_uint_new(m3ap_extension_dissector_table, ProtocolIE_ID, tvb, pinfo, tree, false, NULL)) ? tvb_captured_length(tvb) : 0;
}
static int dissect_InitiatingMessageValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
return (dissector_try_uint_new(m3ap_proc_imsg_dissector_table, ProcedureCode, tvb, pinfo, tree, false, NULL)) ? tvb_captured_length(tvb) : 0;
}
static int dissect_SuccessfulOutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
return (dissector_try_uint_new(m3ap_proc_sout_dissector_table, ProcedureCode, tvb, pinfo, tree, false, NULL)) ? tvb_captured_length(tvb) : 0;
}
static int dissect_UnsuccessfulOutcomeValue(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
return (dissector_try_uint_new(m3ap_proc_uout_dissector_table, ProcedureCode, tvb, pinfo, tree, false, NULL)) ? tvb_captured_length(tvb) : 0;
}
static int
dissect_m3ap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
proto_item *m3ap_item = NULL;
proto_tree *m3ap_tree = NULL;
/* make entry in the Protocol column on summary display */
col_set_str(pinfo->cinfo, COL_PROTOCOL, PSNAME);
col_clear_fence(pinfo->cinfo, COL_INFO);
col_clear(pinfo->cinfo, COL_INFO);
/* create the m3ap protocol tree */
m3ap_item = proto_tree_add_item(tree, proto_m3ap, tvb, 0, -1, ENC_NA);
m3ap_tree = proto_item_add_subtree(m3ap_item, ett_m3ap);
dissect_M3AP_PDU_PDU(tvb, pinfo, m3ap_tree, NULL);
return tvb_captured_length(tvb);
}
/*--- proto_register_m3ap -------------------------------------------*/
void proto_register_m3ap(void) {
/* List of fields */
static hf_register_info hf[] = {
{ &hf_m3ap_Absolute_Time_ofMBMS_Data_value,
{ "Absolute-Time-ofMBMS-Data-value", "m3ap.Absolute_Time_ofMBMS_Data_value",
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_NTP_UTC, NULL, 0,
NULL, HFILL }
},
{ &hf_m3ap_IPAddress_v4,
{ "IPAddress", "m3ap.IPAddress_v4",
FT_IPv4, BASE_NONE, NULL, 0,
NULL, HFILL }
},
{ &hf_m3ap_IPAddress_v6,
{ "IPAddress", "m3ap.IPAddress_v6",
FT_IPv6, BASE_NONE, NULL, 0,
NULL, HFILL }
},
#include "packet-m3ap-hfarr.c"
};
/* List of subtrees */
static int *ett[] = {
&ett_m3ap,
&ett_m3ap_IPAddress,
#include "packet-m3ap-ettarr.c"
};
expert_module_t* expert_m3ap;
static ei_register_info ei[] = {
{ &ei_m3ap_invalid_ip_address_len, { "m3ap.invalid_ip_address_len", PI_MALFORMED, PI_ERROR, "Invalid IP address length", EXPFILL }}
};
/* Register protocol */
proto_m3ap = proto_register_protocol(PNAME, PSNAME, PFNAME);
/* Register fields and subtrees */
proto_register_field_array(proto_m3ap, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
expert_m3ap = expert_register_protocol(proto_m3ap);
expert_register_field_array(expert_m3ap, ei, array_length(ei));
/* Register dissector */
m3ap_handle = register_dissector(PFNAME, dissect_m3ap, proto_m3ap);
/* Register dissector tables */
m3ap_ies_dissector_table = register_dissector_table("m3ap.ies", "M3AP-PROTOCOL-IES", proto_m3ap, FT_UINT32, BASE_DEC);
m3ap_extension_dissector_table = register_dissector_table("m3ap.extension", "M3AP-PROTOCOL-EXTENSION", proto_m3ap, FT_UINT32, BASE_DEC);
m3ap_proc_imsg_dissector_table = register_dissector_table("m3ap.proc.imsg", "M3AP-ELEMENTARY-PROCEDURE InitiatingMessage", proto_m3ap, FT_UINT32, BASE_DEC);
m3ap_proc_sout_dissector_table = register_dissector_table("m3ap.proc.sout", "M3AP-ELEMENTARY-PROCEDURE SuccessfulOutcome", proto_m3ap, FT_UINT32, BASE_DEC);
m3ap_proc_uout_dissector_table = register_dissector_table("m3ap.proc.uout", "M3AP-ELEMENTARY-PROCEDURE UnsuccessfulOutcome", proto_m3ap, FT_UINT32, BASE_DEC);
}
/*--- proto_reg_handoff_m3ap ---------------------------------------*/
void
proto_reg_handoff_m3ap(void)
{
static bool inited = false;
static unsigned SctpPort;
if( !inited ) {
dissector_add_uint("sctp.ppi", PROTO_3GPP_M3AP_PROTOCOL_ID, m3ap_handle);
inited = true;
#include "packet-m3ap-dis-tab.c"
dissector_add_uint("m3ap.extension", 17, create_dissector_handle(dissect_AllocationAndRetentionPriority_PDU, proto_m3ap));
}
else {
if (SctpPort != 0) {
dissector_delete_uint("sctp.port", SctpPort, m3ap_handle);
}
}
SctpPort = global_m3ap_port;
if (SctpPort != 0) {
dissector_add_uint("sctp.port", SctpPort, m3ap_handle);
}
}
|
