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wireshark/epan/dissectors/packet-a21.c

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/* packet-a21.c
*
* Routines for A21/s102 Message dissection
* Copyright 2012, Joseph Chai <chaienzhao@gmail.com>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*
* Ref: 3GPP2 A.S0008-C v4.0
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/expert.h>
#include "packet-e212.h"
#include "packet-a21.h"
void proto_register_a21(void);
void proto_reg_handoff_a21(void);
#define A21_PORT 23272
static dissector_handle_t gcsna_handle = NULL;
static int proto_a21 = -1;
static int hf_a21_message_type = -1;
static int hf_a21_element_identifier = -1;
static int hf_a21_element_length = -1;
static int hf_a21_corr_id_corr_value = -1;
static int hf_a21_mn_id_msid_value = -1;
static int hf_a21_mn_id_odd_even_indicator = -1;
static int hf_a21_mn_id_type_of_identity = -1;
static int hf_a21_mn_id_esn = -1;
static int hf_a21_mn_id_identity_digit_1 = -1;
static int hf_a21_gcsna_pdu_length = -1;
static int hf_a21_gcsna_content = -1;
static int hf_a21_reference_cell_id_cell = -1;
static int hf_a21_reference_cell_id_sector = -1;
static int hf_a21_mob_sub_info_record_id = -1;
static int hf_a21_mob_sub_info_record_length = -1;
static int hf_a21_mob_sub_info_record_content = -1;
static int hf_a21_mob_sub_info_re_con_all_band_inc = -1;
static int hf_a21_mob_sub_info_re_con_curr_band_sub = -1;
static int hf_a21_mob_sub_info_re_band_class = -1;
static int hf_a21_mob_sub_info_re_con_all_sub_band_inc = -1;
static int hf_a21_mob_sub_info_re_sub_cls_len = -1;
/*
static int hf_a21_mob_sub_info_re_con_band_class = -1;
*/
static int hf_a21_auth_chall_para_rand_num_type = -1;
static int hf_a21_auth_chall_para_rand_value = -1;
static int hf_a21_service_option = -1;
static int hf_a21_gcsna_status_reserved = -1;
static int hf_a21_gcsna_status_priority_incl = -1;
static int hf_a21_gcsna_status_gec = -1;
static int hf_a21_gcsna_status_status_incl = -1;
static int hf_a21_gcsna_status = -1;
static int hf_a21_gcsna_status_call_priority = -1;
static int hf_a21_3G1X_parameters = -1;
static int hf_a21_reserved = -1;
static int hf_a21_msg_tran_ctrl_paging_msg = -1;
static int hf_a21_msg_tran_ctrl_simul_xmit_with_next = -1;
static int hf_a21_msg_tran_ctrl_ackrequired = -1;
static int hf_a21_msg_tran_ctrl_3GXLogicalChannel = -1;
static int hf_a21_msg_tran_ctrl_protocol_revision = -1;
static int hf_a21_1x_lac_en_pdu = -1;
static int hf_a21_pilot_list_num_of_pilots = -1;
static int hf_a21_cause_value = -1;
static int hf_a21_mscid_market_id = -1;
static int hf_a21_mscid_switch_number = -1;
static int hf_a21_event = -1;
static int hf_a21_additional_event_info = -1;
static int hf_a21_allowed_forward_link_message = -1;
static int hf_a21_channel_record_length = -1;
static int hf_a21_ch_rec_sys_type = -1;
static int hf_a21_ch_rec_band_class = -1;
static int hf_a21_ch_rec_ch_num = -1;
static int hf_a21_cell_id_info = -1;
static int hf_a21_msc_id = -1;
static int hf_a21_cell_id = -1;
static int hf_a21_sector = -1;
static int hf_a21_hrpd_sector_id_len = -1;
static int hf_a21_ch_hrpd_sector_id;
static int hf_a21_ch_reference_pilot = -1;
static int hf_a21_ch_pilot_pn = -1;
static int hf_a21_ch_pilot_pn_phase = -1;
static int hf_a21_ch_pilot_strength = -1;
static int hf_a21_ch_pilot_ow_delay_flag = -1;
static int hf_a21_ch_pilot_ow_delay = -1;
static int hf_a21_sc0 = -1;
static int hf_a21_sc1 = -1;
static int hf_a21_sc2 = -1;
static int hf_a21_sc3 = -1;
static int hf_a21_sc4 = -1;
static int hf_a21_sc5 = -1;
static int hf_a21_sc6 = -1;
static int hf_a21_sc7 = -1;
static gint ett_a21 = -1;
static gint ett_a21_ie = -1;
static gint ett_a21_corr_id = -1;
static gint ett_a21_record_content = -1;
static gint ett_a21_pilot_list = -1;
static gint ett_a21_cr = -1;
static gint ett_a21_band_class = -1;
static expert_field ei_a21_ie_data_not_dissected_yet = EI_INIT;
static const value_string a21_message_type_vals[] = {
{0x01, "A21-1x Air Interface Signalling"}, /* 01H */
{0x02, "A21-Ack"}, /* 02H */
{0x03, "A21-1x Parameters"}, /* 03H */
{0x04, "A21-Event Notification"}, /* 04H */
{0x05, "A21-1x Parameters Request"}, /* 05H */
{0x06, "A21-Service Request"}, /* 06H */
{0x07, "A21-Service Response"}, /* 07H */
{0x08, "A21-Radio Update Request"}, /* 08H */
{0x09, "A21-Radio Update Response"}, /* 09H */
{0, NULL}
};
#define A21_IEI_1X_LAC_ENCAPSULATED_PDU 0x01 /* 01H */
#define A21_IEI_A21_1X_PARAMETERS 0x02 /* 02H */
#define A21_IEI_PILOT_LIST 0x03 /* 03H */
#define A21_IEI_CORRELATION_ID 0x04 /* 04H */
#define A21_IEI_MOBILE_IDENTITY 0x05 /* 05H */
#define A21_IEI_AUTHENTICATION_CHALLENGE_PARAMETER 0x06 /* 06H */
#define A21_IEI_A21_1X_MESSAGE_TRANSMISSION_CONTROL 0x07 /* 07H */
#define A21_IEI_A21_CAUSE 0x08 /* 08H */
#define A21_IEI_A21_EVENT 0x09 /* 09H */
#define A21_IEI_SERVICE_OPTION 0x0A /* 0AH */
#define A21_IEI_A21_MOBILE_SUBSCRIPTION_INFORMATION 0x0B /* 0BH */
#define A21_IEI_GCSNA_STATUS 0x0C /* 0CH */
#define A21_IEI_GCSNA_PDU 0xC0 /* C0H */
#define A21_IEI_REFERENCE_CELL_ID 0x0D /* 0DH */
/*(Reserved range of IEIs for S102) 30H-3FH */
static void
dissect_a21_correlation_id(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_)
{
int offset = 0;
proto_item *tc;
proto_tree *corr_tree;
guint32 corr_id;
corr_tree = proto_tree_add_subtree(tree, tvb, offset, 6, ett_a21_corr_id, &tc, "A21 Correlation ID");
proto_tree_add_item(corr_tree, hf_a21_element_identifier, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(corr_tree, hf_a21_element_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item_ret_uint(corr_tree, hf_a21_corr_id_corr_value, tvb, offset, 4, ENC_BIG_ENDIAN, &corr_id);
proto_item_append_text(tc, " %u", corr_id);
/* offset += 4; */
}
static const value_string a21_mn_id_type_of_identity_vals[] = {
{ 0, "No Identity Code" },
{ 1, "MEID" },
{ 5, "ESN" },
{ 6, "IMSI" },
{ 0, NULL }
};
/* 5.2.4.8 Mobile Identity (MN ID) */
static void
dissect_a21_mobile_identity(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, guint16 length, guint8 message_type _U_)
{
int offset = 0;
guint identity_type;
const gchar *imsi_str;
if (tree == NULL)
return;
identity_type = tvb_get_guint8(tvb, offset) & 0x07;
proto_tree_add_item(tree, hf_a21_mn_id_type_of_identity, tvb, offset, 1, ENC_BIG_ENDIAN);
switch (identity_type) {
case 0:
/* No Identity Code */
proto_tree_add_item(tree, hf_a21_mn_id_msid_value, tvb, offset, 1, ENC_BIG_ENDIAN);
/* offset++; */
break;
case 1:
/* MEID */
proto_tree_add_item(tree, hf_a21_mn_id_odd_even_indicator, tvb, offset, 1, ENC_BIG_ENDIAN);
/* offset++; */
break;
case 5:
/* ESN */
proto_tree_add_item(tree, hf_a21_mn_id_odd_even_indicator, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_a21_mn_id_identity_digit_1, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_a21_mn_id_esn, tvb, offset, 1, ENC_BIG_ENDIAN);
/* offset++; */
break;
case 6:
/* IMSI */
proto_tree_add_item(tree, hf_a21_mn_id_odd_even_indicator, tvb, offset, 1, ENC_BIG_ENDIAN);
imsi_str = dissect_e212_imsi(tvb, pinfo, tree, offset, length, TRUE);
proto_item_append_text(item, "%s", imsi_str);
break;
}
}
static void
dissect_a21_1x_message_transmission_control(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_)
{
int offset = 0;
if (tree == NULL)
return;
proto_tree_add_item(tree, hf_a21_reserved, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_a21_msg_tran_ctrl_paging_msg, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_a21_msg_tran_ctrl_simul_xmit_with_next, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_a21_msg_tran_ctrl_ackrequired, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_a21_msg_tran_ctrl_3GXLogicalChannel, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_a21_msg_tran_ctrl_protocol_revision, tvb, offset, 1, ENC_BIG_ENDIAN);
/* offset++; */
}
static void
dissect_a21_1x_lac_encapsulated_pdu(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_)
{
int offset = 0;
proto_tree_add_item(tree, hf_a21_1x_lac_en_pdu, tvb, offset, 3, ENC_BIG_ENDIAN);
/* offset += 3; */
}
/* 5.2.4.5 A21 1x Parameters */
static void
dissect_a21_1x_parameters(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_)
{
proto_tree_add_item(tree, hf_a21_3G1X_parameters, tvb, 0,length, ENC_NA);
}
/*
* 6.4.1.12 Pilot List
* This IE contains the 1xRTT Pilot List passed to the MME from the eNodeB.
* It is included by the MME whenever the MME receives the 1xRTT Pilot List from the eNodeB.
* Details of format and contents of this IE are specified in 3GPP2 A.S0008-D and 3GPP2 A.S0009-D .
*/
/* a21/S102 Channel Record Cell ID Info */
static const value_string a21_ch_cellid_info_values[] = {
{ 0x00, "Cell Identifier field is not included - pilot: actual 1x pilot" },
{ 0x01, "1x Cell Identifier field is included - pilot: actual 1x pilot" },
{ 0x02, "1x Cell Identifier field is included - pilot: estimated 1x pilot" },
{ 0x03, "1x Cell Identifier field is included - pilot: actual HRPD pilot" },
{ 0x04, "HRPD Sector Identifier field is included - pilot: actual HRPD pilot" },
{ 0x05, "Only an HRPD Sector Identifier field is included" },
{ 0x06, "Only an actual HRPD pilot is included" },
{ 0x07, "Only a 1x Cell Identifier is included" },
{ 0, NULL }
};
/* Pilot One Way Delay flag */
/* A.S0008-C p. 428 */
static const value_string a21_ch_pilot_ow_delay_values[] = {
{0x00, "Not Included"},
{0x01, "Included"},
{0x00, NULL}
};
/* Pilot List System Type */
/* C.S0024-B p. 1493 */
static const value_string s102_ch_pilot_system_type_values[] = {
{0x00, "ChannelNumber field specifies forward CDMA channel and Reverse CDMA channel that are FDD- paired."},
{0x01, "System compliant to 3GPP2 C.S0002 Physical Layer Standard for cdma2000 Spread Spectrum Systems"},
{0x02, "ChannelNumber field specifies only the forward CDMA channel."},
{0x00, NULL}
};
/* S102 Current Band Class */
static const value_string a21_band_class_values[] = {
{ 0x00, "800 MHz" },
{ 0x01, "1900 MHz" },
{ 0x02, "TACS" },
{ 0x03, "JTACS" },
{ 0x04, "Korean PCS" },
{ 0x05, "450 MHz" },
{ 0x06, "2 GHz" },
{ 0x07, "Upper 700 MHz" },
{ 0x08, "1800 MHz" },
{ 0x09, "900 MHz" },
{ 0x0a, "Secondary 800" },
{ 0x0b, "400 MHz European PAMR" },
{ 0x0c, "800 MHz PAMR" },
{ 0x0d, "2.5 GHz IMT-2000 Extension" },
{ 0x0e, "US PCS 1.9GHz" },
{ 0x0f, "AWS" },
{ 0x10, "US 2.5GHz" },
{ 0x11, "US 2.5GHz Forward Link Only" },
{ 0x12, "700 MHz Public Safety" },
{ 0x13, "Lower 700 MHz" },
{ 0x14, "L-Band" },
{ 0, NULL }
};
value_string_ext a21_band_class_values_ext = VALUE_STRING_EXT_INIT(a21_band_class_values);
static void
dissect_a21_pilot_list(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_)
{
proto_tree *sub_tree, *cr_tree;
proto_item* ti;
int offset = 0,start_offset;
guint32 num, ch_rec_len, i, cell_id_info, hrpd_len, reference_pilot, pilot_ow_delay_flag;
proto_tree_add_item_ret_uint(tree, hf_a21_pilot_list_num_of_pilots, tvb, offset, 1, ENC_BIG_ENDIAN, &num);
offset++;
for (i = 0; i < num; i++){
start_offset = offset;
sub_tree = proto_tree_add_subtree_format(tree, tvb, offset, -1, ett_a21_pilot_list, &ti, "Pilot %u", i+1);
proto_tree_add_item_ret_uint(sub_tree, hf_a21_channel_record_length, tvb, offset, 1, ENC_BIG_ENDIAN, &ch_rec_len);
offset++;
/* Channel Record
* This field contains a channel record as defined in 3GPP2: C.S0024-B v1.0. The
* information contained in a channel record include the system
* type, band class, and channel number
*/
cr_tree = proto_tree_add_subtree(sub_tree, tvb, offset, ch_rec_len, ett_a21_cr, &ti, "Channel Record");
/* SystemType len = 8 bit */
proto_tree_add_item(cr_tree, hf_a21_ch_rec_sys_type, tvb, offset, 1, ENC_BIG_ENDIAN);
/* BandClass len = 5 bit */
proto_tree_add_item(cr_tree, hf_a21_ch_rec_band_class, tvb, offset+1, 1, ENC_BIG_ENDIAN);
/* ChannelNumber len = 11 bit */
proto_tree_add_item(cr_tree, hf_a21_ch_rec_ch_num, tvb, offset+1, 2, ENC_BIG_ENDIAN);
offset += ch_rec_len;
/* Cell ID Info */
proto_tree_add_item_ret_uint(sub_tree, hf_a21_cell_id_info, tvb, offset, 1, ENC_BIG_ENDIAN, &cell_id_info);
offset++;
switch (cell_id_info)
{
case 1:
case 2:
case 3:
case 7:
/* Next Info: MSCID - 1x Cell - Sector*/
proto_tree_add_item(sub_tree, hf_a21_msc_id, tvb, offset, 3, ENC_BIG_ENDIAN);
offset += 3;
proto_tree_add_item(sub_tree, hf_a21_cell_id, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(sub_tree, hf_a21_sector, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
break;
case 4:
case 5:
case 6:
/* Next Info: HRPD Sector Identifier */
proto_tree_add_item_ret_uint(sub_tree, hf_a21_hrpd_sector_id_len, tvb, offset, 1, ENC_BIG_ENDIAN, &hrpd_len);
offset += 1;
proto_tree_add_item(sub_tree, hf_a21_ch_hrpd_sector_id, tvb, offset, hrpd_len, ENC_NA);
offset += hrpd_len;
break;
default:
break;
}
/* reference pilot flag */
proto_tree_add_item_ret_uint(sub_tree, hf_a21_ch_reference_pilot, tvb, offset, 1, ENC_BIG_ENDIAN, &reference_pilot);
if (reference_pilot)
{
/* Reference Pilot PN */
proto_tree_add_item(sub_tree, hf_a21_ch_pilot_pn, tvb, offset, 2, ENC_BIG_ENDIAN);
}
else
{
/* Reference Pilot PN Phase*/
proto_tree_add_item(sub_tree, hf_a21_ch_pilot_pn_phase, tvb, offset, 2, ENC_BIG_ENDIAN);
}
offset += 2;
/* Pilot one way delay flag */
proto_tree_add_item_ret_uint(sub_tree, hf_a21_ch_pilot_ow_delay_flag, tvb, offset, 1, ENC_BIG_ENDIAN, &pilot_ow_delay_flag);
/* Pilot Strength */
proto_tree_add_item(sub_tree, hf_a21_ch_pilot_strength, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Pilot one way delay */
if (pilot_ow_delay_flag)
{
proto_tree_add_item(sub_tree, hf_a21_ch_pilot_ow_delay, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
}
proto_item_set_len(ti, offset - start_offset);
}
}
static const range_string a21_random_number_type_rvals[] = {
{0x00, 0x00, "Reserved"},
{0x01, 0x01, "RAND"},
{0x02, 0x0F, "Reserved"},
{0, 0, NULL}
};
static void
dissect_a21_authentication_challenge_parameter(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_)
{
int offset = 0;
guint type;
if (tree == NULL)
return;
type = tvb_get_guint8(tvb, offset) & 0x0f;
proto_tree_add_item(tree, hf_a21_reserved, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_a21_auth_chall_para_rand_num_type, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
switch (type) {
case 1:
proto_tree_add_item(tree, hf_a21_auth_chall_para_rand_value, tvb, offset, 4, ENC_BIG_ENDIAN);
/*offset += 4;*/
break;
}
}
/* A.S0008-C_v1.0_070801 5.2.4.14 A21 Mobile Subscription Information */
static const value_string a21_record_identifier_vals[] = {
{0x00, "Band Class/Band Subclass Record"},
/* All other values are reserved */
{0, NULL}
};
static void
dissect_a21_mobile_subscription_information(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_)
{
int offset = 0, start_offset, rec_end_offset;
int i = 0, j = 0;
guint8 record_id, band_class;
guint16 record_len = 0;
proto_tree *record_tree, *band_tree;
proto_item* ti;
guint32 rec_len, sub_cls_len;
static int * const flags[] = {
&hf_a21_sc7,
&hf_a21_sc6,
&hf_a21_sc5,
&hf_a21_sc4,
&hf_a21_sc3,
&hf_a21_sc2,
&hf_a21_sc1,
&hf_a21_sc0,
NULL
};
if (tree == NULL)
return;
while (offset<length) {
record_id = tvb_get_guint8(tvb, offset);
record_len = tvb_get_guint8(tvb, offset+1);
record_tree = proto_tree_add_subtree_format(tree, tvb, offset+2, record_len,
ett_a21_record_content, NULL, "Record %u",i+1);
proto_tree_add_item(record_tree, hf_a21_mob_sub_info_record_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item_ret_uint(record_tree, hf_a21_mob_sub_info_record_length, tvb, offset, 1, ENC_BIG_ENDIAN, &rec_len);
offset++;
rec_end_offset = offset + rec_len;
if (record_id == 0) {
/* All Band Classes Included*/
proto_tree_add_item(record_tree, hf_a21_mob_sub_info_re_con_all_band_inc, tvb, offset, 1, ENC_BIG_ENDIAN);
/* Current Band Subclass */
proto_tree_add_item(record_tree, hf_a21_mob_sub_info_re_con_curr_band_sub, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
while (offset < rec_end_offset) {
j++;
start_offset = offset;
band_class = tvb_get_guint8(tvb, offset);
band_tree = proto_tree_add_subtree_format(record_tree, tvb, offset, -1,
ett_a21_band_class, &ti, "Band Class %u - %s(%u)",
j,
val_to_str_const(band_class, a21_band_class_values, "Unknown"),
band_class
);
/* Band Class */
proto_tree_add_item(band_tree, hf_a21_mob_sub_info_re_band_class, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* All Band Subclasses Included | Reserved |Band Class 1 Subclass Length Octet 7 */
proto_tree_add_item(band_tree, hf_a21_mob_sub_info_re_con_all_sub_band_inc, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item_ret_uint(band_tree, hf_a21_mob_sub_info_re_sub_cls_len, tvb, offset, 1, ENC_BIG_ENDIAN, &sub_cls_len);
offset++;
if (sub_cls_len > 0) {
proto_tree_add_bitmask_list(band_tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN);
}
offset += sub_cls_len;
proto_item_set_len(ti, offset - start_offset);
}
} else {
proto_tree_add_item(record_tree, hf_a21_mob_sub_info_record_content, tvb, offset, record_len, ENC_NA);
offset += record_len;
}
}
}
static const value_string a21_gcsna_status_vals[] = {
{0x01, "Handoff successful"},
{0x02, "Handoff failure"},
/* All other values are reserved */
{0, NULL}
};
static void
dissect_a21_gcsna_status(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_)
{
int offset = 0;
guint8 priority_incl, status_incl;
if (tree == NULL)
return;
status_incl = tvb_get_guint8(tvb, offset) & 0x01;
priority_incl = tvb_get_guint8(tvb, offset) & 0x04;
proto_tree_add_item(tree, hf_a21_gcsna_status_reserved, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_a21_gcsna_status_priority_incl, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_a21_gcsna_status_gec, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_a21_gcsna_status_status_incl, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
if (status_incl == 1) {
proto_tree_add_item(tree, hf_a21_gcsna_status, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
}
if (priority_incl == 1) {
proto_tree_add_item(tree, hf_a21_reserved, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_a21_gcsna_status_call_priority, tvb, offset, 1, ENC_BIG_ENDIAN);
}
}
/* 5.2.4.16 GCSNA PDU */
static void
dissect_a21_gcsna_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *top_tree, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_)
{
int offset = 0;
proto_tree_add_item(tree, hf_a21_gcsna_content, tvb, offset, length, ENC_NA);
if (gcsna_handle) {
tvbuff_t *new_tvb;
new_tvb = tvb_new_subset_length(tvb, offset, length);
/* call the dissector with the parent (top)tree */
call_dissector(gcsna_handle, new_tvb, pinfo, top_tree);
}
}
/* 5.2.4.17 Reference Cell ID */
static void
dissect_a21_reference_cell_id(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_)
{
int offset = 0;
if (tree == NULL)
return;
proto_tree_add_item(tree, hf_a21_mscid_market_id, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(tree, hf_a21_mscid_switch_number, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(tree, hf_a21_reference_cell_id_cell, tvb, offset, 2, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_a21_reference_cell_id_sector, tvb, offset, 1, ENC_BIG_ENDIAN);
/* offset++; */
}
static const value_string a21_cause_vals[] = {
{0x00, "Unknown mobile"},
{0x01, "Unknown cell identifier(s)"},
{0x02, "Tunneling of 1x messages not available"},
{0x03, "Resources not available"},
{0x04, "A21 context for this MS/AT may be released"},
{0x05, "Airlink lost"},
{0x06, "Abort Handoff from HRPD to 1x"},
{0x07, "Unspecified"},
{0x08, "Rejection"},
{0x09, "Already Paging"},
{0x0A, "Abort handoff from LTE to 1x"},
{0x0B, "Version not supported"},
/* All other values are reserved */
{0, NULL}
};
static void
dissect_a21_cause(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_)
{
int offset = 0;
proto_tree_add_item(tree, hf_a21_cause_value, tvb, offset, 1, ENC_BIG_ENDIAN);
/* offset++; */
}
static const value_string a21_event_vals[] = {
{0x00, "MS/AT present in 1x"},
{0x01, "MS/AT present in HRPD/Cancel Handoff"},
{0x02, "1x Power Down"},
{0x03, "HRPD Power Down/Connection Closed"},
{0x04, "Handoff Rejected"},
{0x05, "1x Registration"},
{0x06, "Transmission of All 1x LAC Encapsulated PDUs Disabled"},
{0x07, "Transmission of 1x LAC Encapsulated PDU(s) Enabled"},
{0x08, "MS/AT no longer present in this AN/PCF"},
{0x09, "MS/AT no longer present in this 1x BS"},
{0x0A, "MS/AT Not Acquired"},
{0x0B, "Redirection"},
/* All other values are reserved */
{0, NULL}
};
static const value_string a21_additional_event_info_vals[] = {
{0x00, "This field shall not be included"},
{0x01, "This field shall not be included"},
{0x02, "This field shall not be included"},
{0x03, "This field shall not be included"},
{0x04, "This field shall not be included"},
{0x05, "This field shall not be included"},
{0x06, "This field shall not be included"},
{0x07, "This field shall contain the variable length AllowedForwardLinkMessages negotiated by the HRPD AN and the AT"},
/* All other values, This field shall not be included */
{0, NULL}
};
static void
dissect_a21_event(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item, guint16 length, guint8 message_type _U_)
{
int offset = 0;
guint8 event_id;
if (tree == NULL)
return;
event_id = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_a21_event, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_item_append_text(item, "%s", val_to_str_const(event_id, a21_event_vals, "Unknown"));
offset++;
if (length>1) {
if (event_id == 7) {
proto_tree_add_item(tree, hf_a21_allowed_forward_link_message, tvb, offset, 2, ENC_BIG_ENDIAN);
/*offset += 2;*/
}
else {
proto_tree_add_item(tree, hf_a21_additional_event_info, tvb, offset, 2, ENC_BIG_ENDIAN);
/*offset += 2;*/
}
}
}
static const value_string a21_service_option_vals[] = {
{0x003B, "HRPD Packet Data"},
/*{0x59xx, "HRPD Packet Data with ReservationLabel where xx = [00-FFH] and contains the ReservationLabel"},*/
{0, NULL}
};
/* 5.2.4.13 Service Option */
static void
dissect_a21_service_option(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, proto_item *item _U_, guint16 length _U_, guint8 message_type _U_)
{
int offset = 0;
proto_tree_add_item(tree, hf_a21_service_option, tvb, offset, 2, ENC_BIG_ENDIAN);
/* offset += 2; */
}
static void
dissect_a21_unknown(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_)
{
proto_tree_add_expert(tree, pinfo, &ei_a21_ie_data_not_dissected_yet, tvb, 0, length);
}
static const value_string a21_element_type_vals[] = {
{0x01, "1x LAC Encapsulated PDU"},
{0x02, "A21 1x Parameters"},
{0x03, "Pilot List"},
{0x04, "Correlation ID"},
{0x05, "Mobile Identity (MN ID)"},
{0x06, "Authentication Challenge Parameter (RAND)"},
{0x07, "A21 1x Message Transmission Control"},
{0x08, "A21 Cause"},
{0x09, "A21 Event"},
{0x0A, "Service Option"},
{0x0B, "A21 Mobile Subscription Information"},
{0x0C, "GCSNA Status"},
{0x0D, "Reference Cell ID"},
{0xC0, "GCSNA PDU"},
{0, NULL}
};
void
dissect_a21_ie_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *top_tree, proto_tree *tree, gint offset, guint8 message_type)
{
guint8 ie_type, length_len;
guint16 length = 0;
tvbuff_t *ie_tvb;
proto_tree *ie_tree;
proto_item *ti;
while (offset < (gint)tvb_reported_length(tvb)) {
ie_type = tvb_get_guint8(tvb, offset);
if (ie_type == A21_IEI_GCSNA_PDU) {
/* length of GCSNA PDU is 2 octets long */
length_len = 2;
length = tvb_get_ntohs(tvb, offset+1);
} else {
/* Octet 2-length */
length_len = 1;
length = tvb_get_guint8(tvb, offset+1);
}
ie_tree = proto_tree_add_subtree_format(tree, tvb, offset, 1 + length_len + length, ett_a21_ie, &ti,
"%s : ", val_to_str_const(ie_type, a21_element_type_vals, "Unknown"));
/* Octet 1-element identifier */
proto_tree_add_item(ie_tree, hf_a21_element_identifier, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(ie_tree, hf_a21_gcsna_pdu_length, tvb, offset, length_len, ENC_BIG_ENDIAN);
offset = offset+length_len;
ie_tvb = tvb_new_subset_remaining(tvb, offset);
switch (ie_type) {
case A21_IEI_1X_LAC_ENCAPSULATED_PDU:
/* 5.2.4.4 1x LAC Encapsulated PDU */
dissect_a21_1x_lac_encapsulated_pdu(ie_tvb,pinfo, ie_tree, ti, length, message_type);
break;
case A21_IEI_A21_1X_PARAMETERS:
/* 5.2.4.5 A21 1x Parameters */
dissect_a21_1x_parameters(ie_tvb,pinfo, ie_tree, ti, length, message_type);
break;
case A21_IEI_PILOT_LIST:
/* 5.2.4.6 Pilot List */
dissect_a21_pilot_list(ie_tvb,pinfo, ie_tree, ti, length, message_type);
break;
case A21_IEI_CORRELATION_ID:
/* 5.2.4.7 Correlation ID */
dissect_a21_correlation_id(ie_tvb,pinfo, ie_tree, ti, length, message_type);
break;
case A21_IEI_MOBILE_IDENTITY:
/* 5.2.4.8 Mobile Identity (MN ID) */
dissect_a21_mobile_identity(ie_tvb,pinfo, ie_tree, ti, length, message_type);
break;
case A21_IEI_AUTHENTICATION_CHALLENGE_PARAMETER:
/* 5.2.4.9 Authentication Challenge Parameter (RAND) */
dissect_a21_authentication_challenge_parameter(ie_tvb,pinfo, ie_tree, ti, length, message_type);
break;
case A21_IEI_A21_1X_MESSAGE_TRANSMISSION_CONTROL:
/* 5.2.4.10 A21 1x Message Transmission Control */
dissect_a21_1x_message_transmission_control(ie_tvb,pinfo, ie_tree, ti, length, message_type);
break;
case A21_IEI_A21_CAUSE:
/* 5.2.4.11 A21 Cause */
dissect_a21_cause(ie_tvb,pinfo, ie_tree, ti, length, message_type);
break;
case A21_IEI_A21_EVENT:
/* 5.2.4.12 A21 Event */
dissect_a21_event(ie_tvb,pinfo, ie_tree, ti, length, message_type);
break;
case A21_IEI_SERVICE_OPTION:
/* 5.2.4.13 Service Option */
dissect_a21_service_option(ie_tvb,pinfo, ie_tree, ti, length, message_type);
break;
case A21_IEI_A21_MOBILE_SUBSCRIPTION_INFORMATION:
/* 5.2.4.14 A21 Mobile Subscription Information */
dissect_a21_mobile_subscription_information(ie_tvb,pinfo, ie_tree, ti, length, message_type);
break;
case A21_IEI_GCSNA_STATUS:
/* 5.2.4.15 GCSNA Status */
dissect_a21_gcsna_status(ie_tvb,pinfo, ie_tree, ti, length, message_type);
break;
case A21_IEI_GCSNA_PDU:
/* 5.2.4.16 GCSNA PDU */
dissect_a21_gcsna_pdu(ie_tvb,pinfo, top_tree, ie_tree, ti, length, message_type);
break;
case A21_IEI_REFERENCE_CELL_ID:
/* 5.2.4.17 Reference Cell ID */
dissect_a21_reference_cell_id(ie_tvb,pinfo, ie_tree, ti, length, message_type);
break;
default:
dissect_a21_unknown(ie_tvb,pinfo, ie_tree, ti, length, message_type);
break;
}
offset = offset + length;
}
}
static int
dissect_a21(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
guint8 message_type;
int offset = 0;
proto_item *ti, *tc;
proto_tree *a21_tree, *corr_tree;
guint32 corr_id;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "A21");
col_clear(pinfo->cinfo, COL_INFO);
/* Message header is 7 octet long
* Octet 1 consists of message type
* Octets 2-7 contain the Correlation Identifier.
*/
message_type = tvb_get_guint8(tvb, offset);
col_set_str(pinfo->cinfo, COL_INFO, val_to_str_const(message_type, a21_message_type_vals, "Unknown"));
ti = proto_tree_add_protocol_format(tree, proto_a21, tvb, 0, -1,
"A21 Protocol: %s",
val_to_str_const(message_type, a21_message_type_vals, "Unknown"));
a21_tree = proto_item_add_subtree(ti, ett_a21);
/* message type in Octet 1 */
proto_tree_add_item(a21_tree, hf_a21_message_type, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Correlation Identifier in Octets 2-7 */
corr_tree = proto_tree_add_subtree(a21_tree, tvb, offset, 6, ett_a21_corr_id, &tc, "A21 Correlation ID");
proto_tree_add_item(corr_tree, hf_a21_element_identifier, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(corr_tree, hf_a21_element_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item_ret_uint(corr_tree, hf_a21_corr_id_corr_value, tvb, offset, 4, ENC_BIG_ENDIAN, &corr_id);
proto_item_append_text(tc, " %u", corr_id);
offset += 4;
dissect_a21_ie_common(tvb, pinfo, tree, a21_tree, offset, message_type);
return tvb_captured_length(tvb);
}
void proto_register_a21(void)
{
static hf_register_info hf_a21[] = {
{ &hf_a21_message_type,
{"Message Type", "a21.message_type",
FT_UINT8, BASE_DEC, VALS(a21_message_type_vals), 0x0,
NULL, HFILL }
},
{ &hf_a21_element_identifier,
{"A21 Element Identifier", "a21.element_identifier",
FT_UINT8, BASE_DEC, VALS(a21_element_type_vals), 0x0,
NULL, HFILL }
},
{ &hf_a21_element_length,
{"Length", "a21.length",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_a21_corr_id_corr_value,
{"Correlation Value", "a21.corr_id_corr_value",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_a21_mn_id_msid_value,
{"MSID Value", "a21.mn_id_msid_value",
FT_UINT8, BASE_DEC, NULL, 0xf8,
NULL, HFILL }
},
{ &hf_a21_mn_id_identity_digit_1,
{"Identity Digit 1", "a21.mn_id_identity_digit_1",
FT_UINT8, BASE_DEC, NULL, 0x08,
NULL, HFILL }
},
{ &hf_a21_mn_id_odd_even_indicator,
{"Odd/Even Indicator", "a21.mn_id_odd_even_indicator",
FT_UINT8, BASE_DEC, NULL, 0x08,
NULL, HFILL }
},
{ &hf_a21_mn_id_type_of_identity,
{"Type of Identity", "a21.mn_id_type_of_identity",
FT_UINT8, BASE_DEC, VALS(a21_mn_id_type_of_identity_vals), 0x07,
NULL, HFILL }
},
{ &hf_a21_mn_id_esn,
{"ESN", "a21.mn_id_esn",
FT_UINT8, BASE_DEC, NULL, 0x7f,
NULL, HFILL }
},
{ &hf_a21_reserved,
{"Reserved", "a21.reserved",
FT_UINT8, BASE_DEC, NULL, 0xf0,
NULL, HFILL }
},
{ &hf_a21_msg_tran_ctrl_paging_msg,
{"Paging Message", "a21.msg_tran_ctrl_paging_msg",
FT_UINT8, BASE_DEC, NULL, 0x08,
NULL, HFILL }
},
{ &hf_a21_msg_tran_ctrl_simul_xmit_with_next,
{"Simul Xmit with Next", "a21.msg_tran_ctrl_simul_xmit_with_next",
FT_UINT8, BASE_DEC, NULL, 0x04,
NULL, HFILL }
},
{ &hf_a21_msg_tran_ctrl_ackrequired,
{"AckRequired", "a21.msg_tran_ctrl_ackrequired",
FT_UINT8, BASE_DEC, NULL, 0x02,
NULL, HFILL }
},
{ &hf_a21_msg_tran_ctrl_3GXLogicalChannel,
{"3GXLogicalChannel", "a21.msg_tran_ctrl_3GXLogicalChannel",
FT_UINT8, BASE_DEC, NULL, 0x01,
NULL, HFILL }
},
{ &hf_a21_msg_tran_ctrl_protocol_revision,
{"ProtocolRevision", "a21.msg_tran_ctrl_protocol_revision",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_a21_1x_lac_en_pdu,
{"1x LAC Encapsulated PDU", "a21.1x_lac_en_pdu",
FT_UINT24, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_a21_pilot_list_num_of_pilots,
{"Number of Pilots", "a21.pilot_list_num_of_pilots",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_a21_cause_value,
{"A21 Cause Value", "a21.cause_value",
FT_UINT8, BASE_DEC, VALS(a21_cause_vals), 0x0,
NULL, HFILL }
},
{ &hf_a21_mscid_market_id,
{"Market ID", "a21.mscid_market_id",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_a21_mscid_switch_number,
{"Switch Number", "a21.mscid_switch_number",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_a21_event,
{"Event", "a21.event",
FT_UINT8, BASE_DEC, VALS(a21_event_vals), 0x0,
NULL, HFILL }
},
{ &hf_a21_additional_event_info,
{"Additional Event Info", "a21.additional_event_info",
FT_UINT16, BASE_DEC, VALS(a21_additional_event_info_vals), 0x0,
NULL, HFILL }
},
{ &hf_a21_allowed_forward_link_message,
{"Allowed Forward Link Messages", "a21.allowed_forward_link_message",
FT_UINT16, BASE_DEC, VALS(a21_additional_event_info_vals), 0x0,
NULL, HFILL }
},
{ &hf_a21_gcsna_pdu_length,
{"Length", "a21.gcsna_pdu_length",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_a21_gcsna_content,
{"GCSNA Content", "a21.gcsna_content",
FT_NONE, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_a21_reference_cell_id_cell,
{"Cell", "a21.reference_cell_id_cell",
FT_UINT16, BASE_DEC, NULL, 0xfff0,
NULL, HFILL }
},
{ &hf_a21_reference_cell_id_sector,
{"Sector", "a21.reference_cell_id_sector",
FT_UINT8, BASE_DEC, NULL, 0x0f,
NULL, HFILL }
},
{ &hf_a21_mob_sub_info_record_id,
{"Record Identifier", "a21.mob_sub_info_record_id",
FT_UINT8, BASE_DEC, VALS(a21_record_identifier_vals), 0x0,
NULL, HFILL }
},
{ &hf_a21_mob_sub_info_record_length,
{"Record Length", "a21.mob_sub_info_record_length",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_a21_mob_sub_info_record_content,
{"Record Content", "a21.mob_sub_info_record_content",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_a21_mob_sub_info_re_con_all_band_inc,
{"All Band Classes Included", "a21.mob_sub_info_re_con_all_band_inc",
FT_UINT8, BASE_DEC, NULL, 0x80,
NULL, HFILL }
},
{ &hf_a21_mob_sub_info_re_con_curr_band_sub,
{"Current Band Subclass", "a21.mob_sub_info_re_con_curr_band_sub",
FT_UINT8, BASE_DEC, NULL, 0x7f,
NULL, HFILL }
},
{ &hf_a21_mob_sub_info_re_band_class,
{"Band Class", "a21.mob_sub_info_re_band_class",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_a21_mob_sub_info_re_con_all_sub_band_inc,
{"All Band Subclasses Included", "a21.mob_sub_info_re_con_all_sub_band_inc",
FT_UINT8, BASE_DEC, NULL, 0x80,
NULL, HFILL }
},
{ &hf_a21_mob_sub_info_re_sub_cls_len,
{"Subclass Length", "a21.mob_sub_info_re_sub_cls_len",
FT_UINT8, BASE_DEC, NULL, 0x0f,
NULL, HFILL }
},
#if 0
{ &hf_a21_mob_sub_info_re_con_band_class,
{"Band Class", "a21.mob_sub_info_re_con_band_class",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
#endif
{ &hf_a21_auth_chall_para_rand_num_type,
{"Random Number Type", "a21.auth_chall_para_rand_num_type",
FT_UINT8, BASE_DEC|BASE_RANGE_STRING, RVALS(a21_random_number_type_rvals), 0x0f,
NULL, HFILL }
},
{ &hf_a21_auth_chall_para_rand_value,
{"RAND Value", "a21.auth_chall_para_rand_value",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_a21_service_option,
{"Service Option", "a21.service_option",
FT_UINT8, BASE_DEC, VALS(a21_service_option_vals), 0x7f,
NULL, HFILL }
},
{ &hf_a21_gcsna_status_reserved,
{"Reserved", "a21.gcsna_status_reserved",
FT_UINT8, BASE_DEC, NULL, 0xf8,
NULL, HFILL }
},
{ &hf_a21_gcsna_status_priority_incl,
{"Priority Incl", "a21.gcsna_status_priority_incl",
FT_UINT8, BASE_DEC, NULL, 0x04,
NULL, HFILL }
},
{ &hf_a21_gcsna_status_gec,
{"GEC", "a21.gcsna_status_gec",
FT_UINT8, BASE_DEC, NULL, 0x02,
NULL, HFILL }
},
{ &hf_a21_gcsna_status_status_incl,
{"Status Incl", "a21.gcsna_status_status_incl",
FT_UINT8, BASE_DEC, NULL, 0x01,
NULL, HFILL }
},
{ &hf_a21_gcsna_status,
{"Status", "a21.gcsna_status",
FT_UINT8, BASE_DEC, VALS(a21_gcsna_status_vals), 0x0,
NULL, HFILL }
},
{ &hf_a21_gcsna_status_call_priority,
{"Call Priority", "a21.gcsna_status_call_priority",
FT_UINT8, BASE_DEC, NULL, 0x0f,
NULL, HFILL }
},
{ &hf_a21_3G1X_parameters,
{"3G1X Parameters", "a21.3G1X_parameters",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_a21_channel_record_length,
{"Channel Record Length", "a21.channel_record_length",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_a21_ch_rec_sys_type,
{ "System Type", "a21.ch_system_type",
FT_UINT8, BASE_HEX, VALS(s102_ch_pilot_system_type_values), 0x0,
NULL, HFILL }
},
{ &hf_a21_ch_rec_band_class,
{ "Band Class", "a21.ch_band_class",
FT_UINT8, BASE_DEC, VALS(a21_band_class_values), 0xf8,
NULL, HFILL }
},
{ &hf_a21_ch_rec_ch_num,
{ "Channel Number", "a21.ch_channel_number",
FT_UINT16, BASE_DEC, NULL, 0x7ff,
NULL, HFILL }
},
{ &hf_a21_cell_id_info,
{"Cell ID Info", "a21.cell_id_info",
FT_UINT8, BASE_DEC, VALS(a21_ch_cellid_info_values), 0x07,
NULL, HFILL }
},
{ &hf_a21_msc_id,
{ "MSC ID", "a21.msc_id",
FT_UINT24, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_a21_cell_id,
{ "Cell ID", "a21.cell_id",
FT_UINT16, BASE_DEC, NULL, 0xfff0,
NULL, HFILL }
},
{ &hf_a21_sector,
{ "Sector", "a21.sector",
FT_UINT8, BASE_DEC, NULL, 0x0f,
NULL, HFILL }
},
{ &hf_a21_hrpd_sector_id_len,
{"HRPD Sector id Length", "a21.hrpd_sector_id_len",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_a21_ch_hrpd_sector_id,
{ "HRPD Sector id", "a21.hrpd_sector_id",
FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL }
},
{ &hf_a21_ch_reference_pilot,
{ "Reference Pilot", "a21.ch_reference_pilot",
FT_UINT8, BASE_DEC, NULL, 0x80,
NULL, HFILL }
},
{ &hf_a21_ch_pilot_pn,
{ "Pilot PN", "a21.ch_pilot_pn",
FT_UINT16, BASE_DEC, NULL, 0x01ff,
NULL, HFILL }
},
{ &hf_a21_ch_pilot_pn_phase,
{ "Pilot PN Phase", "a21.ch_pilot_pn_phase",
FT_UINT16, BASE_DEC, NULL, 0x7fff,
NULL, HFILL }
},
{ &hf_a21_ch_pilot_strength,
{ "Pilot Strength", "a21.ch_pilot_strength",
FT_UINT8, BASE_DEC, NULL, 0x3f,
NULL, HFILL }
},
{ &hf_a21_ch_pilot_ow_delay_flag,
{ "Pilot OneWay Delay", "a21.ch_pilot_onew_delay",
FT_UINT8, BASE_DEC, VALS(a21_ch_pilot_ow_delay_values), 0x40,
NULL, HFILL }
},
{ &hf_a21_ch_pilot_ow_delay,
{ "Pilot OneWay Delay (units of 100ns)", "a21.ch_pilot_onew_delay_value",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_a21_sc0,
{ "SC0", "a21.sc0",
FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), 0x01,
NULL, HFILL }
},
{ &hf_a21_sc1,
{ "SC1", "a21.sc1",
FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), 0x02,
NULL, HFILL }
},
{ &hf_a21_sc2,
{ "SC2", "a21.sc2",
FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), 0x04,
NULL, HFILL }
},
{ &hf_a21_sc3,
{ "SC3", "a21.sc3",
FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), 0x08,
NULL, HFILL }
},
{ &hf_a21_sc4,
{ "SC4", "a21.sc4",
FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), 0x10,
NULL, HFILL }
},
{ &hf_a21_sc5,
{ "SC5", "a21.sc5",
FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), 0x20,
NULL, HFILL }
},
{ &hf_a21_sc6,
{ "SC6", "a21.sc6",
FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), 0x40,
NULL, HFILL }
},
{ &hf_a21_sc7,
{ "SC7", "a21.sc7",
FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), 0x80,
NULL, HFILL }
},
};
/* Setup protocol subtree array */
static gint *ett_a21_array[] = {
&ett_a21,
&ett_a21_corr_id,
&ett_a21_ie,
&ett_a21_record_content,
&ett_a21_pilot_list,
&ett_a21_cr,
&ett_a21_band_class
};
expert_module_t *expert_a21;
static ei_register_info ei[] = {
{ &ei_a21_ie_data_not_dissected_yet,
{ "a21.ie_data_not_dissected_yet",
PI_PROTOCOL, PI_NOTE, "IE data not dissected yet", EXPFILL }},
};
proto_a21 = proto_register_protocol("A21 Protocol", "A21", "a21");
proto_register_field_array(proto_a21, hf_a21, array_length(hf_a21));
proto_register_subtree_array(ett_a21_array, array_length(ett_a21_array));
expert_a21 = expert_register_protocol(proto_a21);
expert_register_field_array(expert_a21, ei, array_length(ei));
}
void proto_reg_handoff_a21(void)
{
dissector_handle_t a21_handle;
a21_handle = create_dissector_handle(dissect_a21, proto_a21);
gcsna_handle = find_dissector_add_dependency("gcsna", proto_a21);
dissector_add_uint_with_preference("udp.port", A21_PORT, a21_handle);
}
/*
* 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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