nexmon – Rev 1
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/* packet-wimaxasncp.c
*
* Routines for WiMAX ASN Control Plane packet dissection dissection
*
* Copyright 2007, Mobile Metrics - http://mobilemetrics.net/
*
* Author: Stephen Croll <croll@mobilemetrics.net>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <epan/packet.h>
#include <epan/prefs.h>
#include <epan/sminmpec.h>
#include <epan/addr_resolv.h>
#include <epan/ipproto.h>
#include <epan/expert.h>
#include <epan/eap.h>
#include <wsutil/filesystem.h>
#include <wsutil/report_err.h>
#include "wimaxasncp_dict.h"
/* Forward declarations we need below */
void proto_register_wimaxasncp(void);
void proto_reg_handoff_wimaxasncp(void);
/* Initialize the protocol and registered fields */
static int proto_wimaxasncp = -1;
static int hf_wimaxasncp_version = -1;
static int hf_wimaxasncp_flags = -1;
static int hf_wimaxasncp_function_type = -1;
static int hf_wimaxasncp_op_id = -1;
/* static int hf_wimaxasncp_message_type = -1; */
/* static int hf_wimaxasncp_qos_msg = -1; */
/* static int hf_wimaxasncp_ho_control_msg = -1; */
/* static int hf_wimaxasncp_data_path_control_msg = -1; */
/* static int hf_wimaxasncp_context_delivery_msg = -1; */
/* static int hf_wimaxasncp_r3_mobility_msg = -1; */
/* static int hf_wimaxasncp_paging_msg = -1; */
/* static int hf_wimaxasncp_rrm_msg = -1; */
/* static int hf_wimaxasncp_authentication_msg = -1; */
/* static int hf_wimaxasncp_ms_state_msg = -1; */
/* static int hf_wimaxasncp_reauthentication_msg = -1; */
/* static int hf_wimaxasncp_session_msg = -1; */
static int hf_wimaxasncp_length = -1;
static int hf_wimaxasncp_msid = -1;
static int hf_wimaxasncp_reserved1 = -1;
static int hf_wimaxasncp_transaction_id = -1;
static int hf_wimaxasncp_reserved2 = -1;
/* static int hf_wimaxasncp_tlv = -1; */
static int hf_wimaxasncp_tlv_type = -1;
static int hf_wimaxasncp_tlv_length = -1;
static int hf_wimaxasncp_tlv_value_bytes = -1;
static int hf_wimaxasncp_tlv_value_bitflags8 = -1;
static int hf_wimaxasncp_tlv_value_bitflags16 = -1;
static int hf_wimaxasncp_tlv_value_bitflags32 = -1;
/* static int hf_wimaxasncp_tlv_value_protocol = -1; */
/* static int hf_wimaxasncp_tlv_value_vendor_id = -1; */
/* Preferences */
static gboolean show_transaction_id_d_bit = FALSE;
static gboolean debug_enabled = FALSE;
/* Default WiMAX ASN control protocol port */
#define WIMAXASNCP_DEF_UDP_PORT 2231
static guint global_wimaxasncp_udp_port = WIMAXASNCP_DEF_UDP_PORT;
/* Initialize the subtree pointers */
static gint ett_wimaxasncp = -1;
static gint ett_wimaxasncp_flags = -1;
static gint ett_wimaxasncp_tlv = -1;
static gint ett_wimaxasncp_tlv_value_bitflags8 = -1;
static gint ett_wimaxasncp_tlv_value_bitflags16 = -1;
static gint ett_wimaxasncp_tlv_value_bitflags32 = -1;
static gint ett_wimaxasncp_tlv_protocol_list = -1;
static gint ett_wimaxasncp_tlv_port_range_list = -1;
static gint ett_wimaxasncp_tlv_ip_address_mask_list = -1;
static gint ett_wimaxasncp_tlv_ip_address_mask = -1;
static gint ett_wimaxasncp_tlv_eap = -1;
static gint ett_wimaxasncp_tlv_vendor_specific_information_field = -1;
static gint ett_wimaxasncp_port_range = -1;
static expert_field ei_wimaxasncp_tlv_type = EI_INIT;
static expert_field ei_wimaxasncp_function_type = EI_INIT;
static expert_field ei_wimaxasncp_op_id = EI_INIT;
static expert_field ei_wimaxasncp_length_bad = EI_INIT;
/* Header size, up to, but not including, the TLV fields. */
#define WIMAXASNCP_HEADER_SIZE 20
/* Offset to end of the length field in the headder. */
#define WIMAXASNCP_HEADER_LENGTH_END 6
#define WIMAXASNCP_BIT32(n) (1U << (31 - (n)))
#define WIMAXASNCP_BIT16(n) (1U << (15 - (n)))
#define WIMAXASNCP_BIT8(n) (1U << ( 7 - (n)))
#define WIMAXASNCP_FLAGS_T WIMAXASNCP_BIT8(6)
#define WIMAXASNCP_FLAGS_R WIMAXASNCP_BIT8(7)
typedef struct {
GArray* hf;
GArray* ett;
} wimaxasncp_build_dict_t;
static wimaxasncp_dict_t *wimaxasncp_dict = NULL;
wimaxasncp_build_dict_t wimaxasncp_build_dict;
static wimaxasncp_dict_tlv_t wimaxasncp_tlv_not_found =
{
0, "Unknown", NULL, WIMAXASNCP_TLV_UNKNOWN, 0,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
NULL, NULL, NULL
};
static dissector_handle_t wimaxasncp_handle;
static dissector_handle_t eap_handle;
/* ------------------------------------------------------------------------- */
static const value_string wimaxasncp_flag_vals[] =
{
{ WIMAXASNCP_BIT8(0), "Reserved" },
{ WIMAXASNCP_BIT8(1), "Reserved" },
{ WIMAXASNCP_BIT8(2), "Reserved" },
{ WIMAXASNCP_BIT8(3), "Reserved" },
{ WIMAXASNCP_BIT8(4), "Reserved" },
{ WIMAXASNCP_BIT8(5), "Reserved" },
{ WIMAXASNCP_FLAGS_T, "T - Source and Destination Identifier TLVs"},
{ WIMAXASNCP_FLAGS_R, "R - Reset Next Expected Transaction ID"},
{ 0, NULL}
};
/* ------------------------------------------------------------------------- */
static const value_string wimaxasncp_op_id_vals[] =
{
{ 0, "Invalid"},
{ 1, "Request/Initiation"},
{ 2, "Response"},
{ 3, "Ack"},
{ 4, "Indication"},
{ 5, "Reserved"},
{ 6, "Reserved"},
{ 7, "Reserved"},
{ 0, NULL}
};
/* ------------------------------------------------------------------------- */
#define WIMAXASNCP_FT_QOS 1
#define WIMAXASNCP_FT_HO_CONTROL 2
#define WIMAXASNCP_FT_DATA_PATH_CONTROL 3
#define WIMAXASNCP_FT_CONTEXT_TRANSFER 4
#define WIMAXASNCP_FT_R3_MOBILITY 5
#define WIMAXASNCP_FT_PAGING 6
#define WIMAXASNCP_FT_RRM 7
#define WIMAXASNCP_FT_AUTHENTICATION 8
#define WIMAXASNCP_FT_MS_STATE 9
#define WIMAXASNCP_FT_REAUTHENTICATION 10
/* since NWG R1 V1.2.0 */
#define WIMAXASNCP_FT_IM_OPERATIONS 10
/* since NWG R1 V1.2.1 */
#define WIMAXASNCP_FT_ACCOUNTING 11
/* ------------------------------------------------------------------------- */
/* struct to hold a value_string tuple, per version */
typedef struct _ver_value_string
{
guint32 since;
value_string vs;
} ver_value_string;
static const ver_value_string wimaxasncp_function_type_vals[] =
{
{0, { WIMAXASNCP_FT_QOS, "QoS"}},
{0, { WIMAXASNCP_FT_HO_CONTROL, "HO Control"}},
{0, { WIMAXASNCP_FT_DATA_PATH_CONTROL, "Data Path Control"}},
{0, { WIMAXASNCP_FT_CONTEXT_TRANSFER, "Context Transfer"}},
{0, { WIMAXASNCP_FT_R3_MOBILITY, "R3 Mobility"}},
{0, { WIMAXASNCP_FT_PAGING, "Paging"}},
{0, { WIMAXASNCP_FT_RRM, "RRM"}},
{0, { WIMAXASNCP_FT_AUTHENTICATION, "Authentication Relay"}},
{0, { WIMAXASNCP_FT_MS_STATE, "MS State"}},
{0, { WIMAXASNCP_FT_REAUTHENTICATION, "Re-Authentication"}},
{WIMAXASNCP_NWGVER_R10_V120, {WIMAXASNCP_FT_IM_OPERATIONS, "IM Operations"}},
{WIMAXASNCP_NWGVER_R10_V121, { WIMAXASNCP_FT_ACCOUNTING, "Accounting"}},
{0, { 0, NULL}}
};
/* ------------------------------------------------------------------------- */
static const ver_value_string wimaxasncp_qos_msg_vals[] =
{
{0,{ 1, "RR_Req"}},
{0,{ 2, "RR_Rsp"}},
{0,{ 3, "RR_Ack"}},
{0,{ 0, NULL}}
};
/* ------------------------------------------------------------------------- */
static const ver_value_string wimaxasncp_ho_control_msg_vals[] =
{
{0, { 1, "HO_Ack"}},
{0, { 2, "HO_Complete"}},
{0, { 3, "HO_Cnf"}},
{0, { 4, "HO_Req"}},
{0, { 5, "HO_Rsp"}},
{WIMAXASNCP_NWGVER_R10_V120, { 1, "HO_Req"}},
{WIMAXASNCP_NWGVER_R10_V120, { 2, "HO_Rsp"}},
{WIMAXASNCP_NWGVER_R10_V120, { 3, "HO_Ack"}},
{WIMAXASNCP_NWGVER_R10_V120, { 4, "HO_Cnf"}},
{WIMAXASNCP_NWGVER_R10_V120, { 5, "HO_Complete"}},
{WIMAXASNCP_NWGVER_R10_V120, { 6, "HO_Directive"}},
{WIMAXASNCP_NWGVER_R10_V120, { 7, "HO_Directive_Rsp"}},
{0, { 0, NULL}}
};
/* ------------------------------------------------------------------------- */
static const ver_value_string wimaxasncp_data_path_control_msg_vals[] =
{
{0, { 1, "Path_Dereg_Ack"}},
{0, { 2, "Path_Dereg_Req"}},
{0, { 3, "Path_Dereg_Rsp"}},
{0, { 4, "Path_Modification_Ack"}},
{0, { 5, "Path_Modification_Req"}},
{0, { 6, "Path_Modification_Rsp"}},
{0, { 7, "Path_Prereg_Ack"}},
{0, { 8, "Path_Prereg_Req"}},
{0, { 9, "Path_Prereg_Rsp"}},
{0, { 10, "Path_Reg_Ack"}},
{0, { 11, "Path_Reg_Req"}},
{0, { 12, "Path_Reg_Rsp"}},
{0, { 13, "MS_Attachment_Req"}},
{0, { 14, "MS_Attachment_Rsp"}},
{0, { 15, "MS_Attachment_Ack"}},
{0, { 16, "Key_Change_Directive"}},
{WIMAXASNCP_NWGVER_R10_V120, { 1, "Path_Dereg_Req"}},
{WIMAXASNCP_NWGVER_R10_V120, { 2, "Path_Dereg_Rsp"}},
{WIMAXASNCP_NWGVER_R10_V120, { 3, "Path_Dereg_Ack"}},
{WIMAXASNCP_NWGVER_R10_V120, { 4, "Path_Modification_Req"}},
{WIMAXASNCP_NWGVER_R10_V120, { 5, "Path_Modification_Rsp"}},
{WIMAXASNCP_NWGVER_R10_V120, { 6, "Path_Modification_Ack"}},
{WIMAXASNCP_NWGVER_R10_V120, { 7, "Path_Prereg_Req"}},
{WIMAXASNCP_NWGVER_R10_V120, { 8, "Path_Prereg_Rsp"}},
{WIMAXASNCP_NWGVER_R10_V120, { 9, "Path_Prereg_Ack"}},
{WIMAXASNCP_NWGVER_R10_V120, { 10, "Path_Reg_Req"}},
{WIMAXASNCP_NWGVER_R10_V120, { 11, "Path_Reg_Rsp"}},
{WIMAXASNCP_NWGVER_R10_V120, { 12, "Path_Reg_Ack"}},
{WIMAXASNCP_NWGVER_R10_V120, { 13, "Obsolete"}},
{WIMAXASNCP_NWGVER_R10_V120, { 14, "Obsolete"}},
{WIMAXASNCP_NWGVER_R10_V120, { 15, "Obsolete"}},
{WIMAXASNCP_NWGVER_R10_V120, { 16, "Obsolete"}},
{0, { 0, NULL}}
};
/* ------------------------------------------------------------------------- */
static const ver_value_string wimaxasncp_context_transfer_msg_vals[] =
{
{0, { 1, "Context_Rpt"}},
{0, { 2, "Context_Req"}},
{0, { 3, "Context_Ack"}},
{WIMAXASNCP_NWGVER_R10_V120, { 1, "Context_Req"}},
{WIMAXASNCP_NWGVER_R10_V120, { 2, "Context_Rpt"}},
{WIMAXASNCP_NWGVER_R10_V120, { 4, "CMAC_Key_Count_Update"}},
{WIMAXASNCP_NWGVER_R10_V120, { 5, "CMAC_Key_Count_Update_ACK"}},
{WIMAXASNCP_NWGVER_R10_V120, { 6, "CMAC_Key_Count_Req"}},
{WIMAXASNCP_NWGVER_R10_V120, { 7, "CMAC_Key_Count_Rsp"}},
{WIMAXASNCP_NWGVER_R10_V120, { 8, "Prepaid Request"}},
{WIMAXASNCP_NWGVER_R10_V120, { 9, "Prepaid Notify"}},
{WIMAXASNCP_NWGVER_R10_V121, { 6, "VOID"}},
{WIMAXASNCP_NWGVER_R10_V121, { 7, "VOID"}},
{WIMAXASNCP_NWGVER_R10_V121, { 0, NULL}}
};
/* ------------------------------------------------------------------------- */
static const ver_value_string wimaxasncp_r3_mobility_msg_vals[] =
{
{0, { 1, "Anchor_DPF_HO_Req"}},
{0, { 2, "Anchor_DPF_HO_Trigger"}},
{0, { 3, "Anchor_DPF_HO_Rsp"}},
{0, { 4, "Anchor_DPF_Relocate_Req"}},
{0, { 5, "FA_Register_Req"}},
{0, { 6, "FA_Register_Rsp"}},
{0, { 7, "Anchor_DPF_Relocate_Rsp"}},
{0, { 8, "FA_Revoke_Req"}},
{0, { 9, "FA_Revoke_Rsp"}},
{WIMAXASNCP_NWGVER_R10_V120, { 5, "Anchor_DPF_Relocate_Rsp"}},
{WIMAXASNCP_NWGVER_R10_V120, { 6, "FA_Register_Req"}},
{WIMAXASNCP_NWGVER_R10_V120, { 7, "FA_Register_Rsp"}},
{WIMAXASNCP_NWGVER_R10_V120, { 10, "Anchor_DPF_Release_Req"}},
{WIMAXASNCP_NWGVER_R10_V120, { 11, "Relocation_Ready_Req"}},
{WIMAXASNCP_NWGVER_R10_V120, { 12, "Relocation_Ready_Rsp"}},
{0, { 0, NULL}}
};
/* ------------------------------------------------------------------------- */
static const ver_value_string wimaxasncp_paging_msg_vals[] =
{
{0, { 1, "Initiate_Paging_Req"}},
{0, { 2, "Initiate_Paging_Rsp"}},
{0, { 3, "LU_Cnf"}},
{0, { 4, "LU_Req"}},
{0, { 5, "LU_Rsp"}},
{0, { 6, "Paging_Announce"}},
{0, { 7, "CMAC_Key_Count_Req"}},
{0, { 8, "CMAC_Key_Count_Rsp"}},
{WIMAXASNCP_NWGVER_R10_V120, { 1, "Paging_Announce"}},
{WIMAXASNCP_NWGVER_R10_V120, { 2, "Delete_MS_Entry_Req"}},
{WIMAXASNCP_NWGVER_R10_V120, { 3, "PC_Relocation_Ind"}},
{WIMAXASNCP_NWGVER_R10_V120, { 4, "PC_Relocation_Ack"}},
{WIMAXASNCP_NWGVER_R10_V120, { 5, "Obsolete"}},
{WIMAXASNCP_NWGVER_R10_V120, { 6, "Obsolete"}},
{WIMAXASNCP_NWGVER_R10_V120, { 7, "Obsolete"}},
{WIMAXASNCP_NWGVER_R10_V120, { 8, "Obsolete"}},
{0, { 0, NULL}}
};
/* ------------------------------------------------------------------------- */
static const ver_value_string wimaxasncp_rrm_msg_vals[] =
{
{0, { 1, "R6 PHY_Parameters_Req"}},
{0, { 2, "R6 PHY_Parameters_Rpt"}},
{0, { 3, "R4/R6 Spare_Capacity_Req"}},
{0, { 4, "R4/R6 Spare_Capacity_Rpt"}},
{0, { 5, "R6 Neighbor_BS_Resource_Status_Update"}},
{0, { 6, "R4/R6 Radio_Config_Update_Req"}},
{0, { 7, "R4/R6 Radio_Config_Update_Rpt"}},
{WIMAXASNCP_NWGVER_R10_V120, { 8, "R4/R6 Radio_Config_Update_Ack"}},
{0, { 0, NULL}}
};
/* ------------------------------------------------------------------------- */
static const ver_value_string wimaxasncp_authentication_msg_vals[] =
{
{0, { 1, "AR_Authenticated_Eap_Start"}},
{0, { 2, "AR_Authenticated_EAP_Transfer"}},
{0, { 3, "AR_Eap_Start"}},
{0, { 4, "AR_EAP_Transfer"}},
{0, { 5, "AR_EAP_Complete"}},
{WIMAXASNCP_NWGVER_R10_V120, { 1, "AR_EAP_Start"}},
{WIMAXASNCP_NWGVER_R10_V120, { 2, "AR_EAP_Transfer"}},
{WIMAXASNCP_NWGVER_R10_V120, { 3, "Bulk_Interim_Update"}},
{WIMAXASNCP_NWGVER_R10_V120, { 4, "Bulk_Interim_Update_Ack"}},
{WIMAXASNCP_NWGVER_R10_V120, { 5, "Obsolete"}},
{0, { 0, NULL}}
};
/* ------------------------------------------------------------------------- */
static const ver_value_string wimaxasncp_ms_state_msg_vals[] =
{
{0, { 1, "IM_Entry_State_Change_Req"}},
{0, { 2, "IM_Entry_State_Change_Rsp"}},
{0, { 3, "IM_Exit_State_Change_Req"}},
{0, { 4, "IM_Exit_State_Change_Rsp"}},
{0, { 5, "NW_ReEntry_State_Change_Directive"}},
{0, { 6, "MS_PreAttachment_Req"}},
{0, { 7, "MS_PreAttachment_Rsp"}},
{0, { 8, "MS_PreAttachment_Ack"}},
{WIMAXASNCP_NWGVER_R10_V120, { 1, "MS_PreAttachment_Req"}},
{WIMAXASNCP_NWGVER_R10_V120, { 2, "MS_PreAttachment_Rsp"}},
{WIMAXASNCP_NWGVER_R10_V120, { 3, "MS_PreAttachment_Ack"}},
{WIMAXASNCP_NWGVER_R10_V120, { 4, "MS_Attachment_Req"}},
{WIMAXASNCP_NWGVER_R10_V120, { 5, "MS_Attachment_Rsp"}},
{WIMAXASNCP_NWGVER_R10_V120, { 6, "MS_Attachment_Ack"}},
{WIMAXASNCP_NWGVER_R10_V120, { 7, "Key_Change_Directive"}},
{WIMAXASNCP_NWGVER_R10_V120, { 8, "Key_Change_Cnf"}},
{WIMAXASNCP_NWGVER_R10_V120, { 9, "Key_Change_Ack"}},
{WIMAXASNCP_NWGVER_R10_V120, { 10, "Relocation_Conplete_Req"}},
{WIMAXASNCP_NWGVER_R10_V120, { 11, "Relocation_Conplete_Rsp"}},
{WIMAXASNCP_NWGVER_R10_V120, { 12, "Relocation_Conplete_Ack"}},
{WIMAXASNCP_NWGVER_R10_V120, { 13, "Relocation_Notify"}},
{WIMAXASNCP_NWGVER_R10_V120, { 14, "Relocation_Req"}},
{WIMAXASNCP_NWGVER_R10_V120, { 15, "Relocation_Rsp"}},
{WIMAXASNCP_NWGVER_R10_V120, { 16, "NetExit_MS_State_Change_Req"}},
{WIMAXASNCP_NWGVER_R10_V120, { 17, "NetExit_MS_State_Change_Rsp"}},
{0, { 0, NULL}}
};
/* ------------------------------------------------------------------------- */
/* note - function type 10-im_operation, was once used for re-authrntication */
static const ver_value_string wimaxasncp_im_operations_msg_vals[] =
{
{0, { 1, "AR_EAP_Start"}},
{0, { 2, "Key_Change_Directive"}},
{0, { 3, "Key_Change_Cnf"}},
{0, { 4, "Relocation_Cnf"}},
{0, { 5, "Relocation_Confirm_Ack"}},
{0, { 6, "Relocation_Notify"}},
{0, { 7, "Relocation_Notify_Ack"}},
{0, { 8, "Relocation_Req"}},
{0, { 9, "Relocation_Rsp"}},
{WIMAXASNCP_NWGVER_R10_V120, { 1, "IM_Entry_State_Change_Req"}},
{WIMAXASNCP_NWGVER_R10_V120, { 2, "IM_Entry_State_Change_Rsp"}},
{WIMAXASNCP_NWGVER_R10_V120, { 3, "IM_Entry_State_Change_Ack"}},
{WIMAXASNCP_NWGVER_R10_V120, { 4, "IM_Exit_State_Change_Req"}},
{WIMAXASNCP_NWGVER_R10_V120, { 5, "IM_Exit_State_Change_Rsp"}},
{WIMAXASNCP_NWGVER_R10_V120, { 6, "Initiate_Paging_Req"}},
{WIMAXASNCP_NWGVER_R10_V120, { 7, "Initiate_Paging_Rsp"}},
{WIMAXASNCP_NWGVER_R10_V120, { 8, "LU_Req"}},
{WIMAXASNCP_NWGVER_R10_V120, { 9, "LU_Rsp"}},
{WIMAXASNCP_NWGVER_R10_V120, { 10, "LU_Cnf"}},
{0, { 0, NULL}}
};
/* ------------------------------------------------------------------------- */
static const ver_value_string wimaxasncp_accounting_msg_vals_r1v121[] =
{
{WIMAXASNCP_NWGVER_R10_V121, { 1, "Hot_lining_Req"}},
{WIMAXASNCP_NWGVER_R10_V121, { 2, "Hot_lining_Rsp"}},
{0, { 0, NULL}}
};
/* ------------------------------------------------------------------------- */
/* supported NWG versions */
static const enum_val_t wimaxasncp_nwg_versions[] = {
{ "Release 1.0, Version 1.0.0" , "R1.0 v1.0.0" , WIMAXASNCP_NWGVER_R10_V100 },
{ "Release 1.0, Version 1.2.0" , "R1.0 v1.2.0" , WIMAXASNCP_NWGVER_R10_V120 },
{ "Release 1.0, Version 1.2.1" , "R1.0 v1.2.1" , WIMAXASNCP_NWGVER_R10_V121 },
{ NULL, NULL, 0 }
};
/* ------------------------------------------------------------------------- */
/* NWG version */
#define WIMAXASNCP_DEF_NWGVER WIMAXASNCP_NWGVER_R10_V121
static guint global_wimaxasncp_nwg_ver = WIMAXASNCP_DEF_NWGVER;
/* ========================================================================= */
typedef struct {
guint8 function_type;
const ver_value_string *vals;
} wimaxasncp_func_msg_t;
/* ------------------------------------------------------------------------ */
static const wimaxasncp_func_msg_t wimaxasncp_func_to_msg_vals_map[] =
{
{ WIMAXASNCP_FT_QOS, wimaxasncp_qos_msg_vals },
{ WIMAXASNCP_FT_HO_CONTROL, wimaxasncp_ho_control_msg_vals },
{ WIMAXASNCP_FT_DATA_PATH_CONTROL, wimaxasncp_data_path_control_msg_vals },
{ WIMAXASNCP_FT_CONTEXT_TRANSFER, wimaxasncp_context_transfer_msg_vals },
{ WIMAXASNCP_FT_R3_MOBILITY, wimaxasncp_r3_mobility_msg_vals },
{ WIMAXASNCP_FT_PAGING, wimaxasncp_paging_msg_vals },
{ WIMAXASNCP_FT_RRM, wimaxasncp_rrm_msg_vals },
{ WIMAXASNCP_FT_AUTHENTICATION, wimaxasncp_authentication_msg_vals },
{ WIMAXASNCP_FT_MS_STATE, wimaxasncp_ms_state_msg_vals },
{ WIMAXASNCP_FT_IM_OPERATIONS, wimaxasncp_im_operations_msg_vals },
{ WIMAXASNCP_FT_ACCOUNTING, wimaxasncp_accounting_msg_vals_r1v121 }
};
/* ========================================================================= */
static const wimaxasncp_dict_tlv_t *wimaxasncp_get_tlv_info(
guint16 type)
{
wimaxasncp_dict_tlv_t *res = NULL;
if (wimaxasncp_dict)
{
wimaxasncp_dict_tlv_t *tlv;
for (tlv = wimaxasncp_dict->tlvs; tlv; tlv = tlv->next)
{
if (tlv->type == type)
{
/* if the TLV is defined for current NWG version */
if (tlv->since<= global_wimaxasncp_nwg_ver)
{
/* if the current TLV is newer then last found TLV, save it */
if (!res || (tlv->since > res->since))
{
res = tlv;
}
}
}
}
}
if (debug_enabled && !res)
{
g_print("fix-me: unknown TLV type: %u\n", type);
}
return res? res:&wimaxasncp_tlv_not_found;
}
/* ========================================================================= */
static const gchar *wimaxasncp_get_enum_name(
const wimaxasncp_dict_tlv_t *tlv_info,
guint32 code)
{
if (tlv_info->enum_vs)
{
return val_to_str(code, tlv_info->enum_vs, "Unknown");
}
else
{
return "Unknown";
}
}
/* ========================================================================= */
static const value_string wimaxasncp_decode_type_vals[] =
{
{ WIMAXASNCP_TLV_UNKNOWN, "WIMAXASNCP_TLV_UNKNOWN"},
{ WIMAXASNCP_TLV_TBD, "WIMAXASNCP_TLV_TBD"},
{ WIMAXASNCP_TLV_COMPOUND, "WIMAXASNCP_TLV_COMPOUND"},
{ WIMAXASNCP_TLV_BYTES, "WIMAXASNCP_TLV_BYTES"},
{ WIMAXASNCP_TLV_ENUM8, "WIMAXASNCP_TLV_ENUM8"},
{ WIMAXASNCP_TLV_ENUM16, "WIMAXASNCP_TLV_ENUM16"},
{ WIMAXASNCP_TLV_ENUM32, "WIMAXASNCP_TLV_ENUM32"},
{ WIMAXASNCP_TLV_ETHER, "WIMAXASNCP_TLV_ETHER"},
{ WIMAXASNCP_TLV_ASCII_STRING, "WIMAXASNCP_TLV_ASCII_STRING"},
{ WIMAXASNCP_TLV_FLAG0, "WIMAXASNCP_TLV_FLAG0"},
{ WIMAXASNCP_TLV_BITFLAGS8, "WIMAXASNCP_TLV_BITFLAGS8"},
{ WIMAXASNCP_TLV_BITFLAGS16, "WIMAXASNCP_TLV_BITFLAGS16"},
{ WIMAXASNCP_TLV_BITFLAGS32, "WIMAXASNCP_TLV_BITFLAGS32"},
{ WIMAXASNCP_TLV_ID, "WIMAXASNCP_TLV_ID"},
{ WIMAXASNCP_TLV_HEX8, "WIMAXASNCP_TLV_HEX8"},
{ WIMAXASNCP_TLV_HEX16, "WIMAXASNCP_TLV_HEX16"},
{ WIMAXASNCP_TLV_HEX32, "WIMAXASNCP_TLV_HEX32"},
{ WIMAXASNCP_TLV_DEC8, "WIMAXASNCP_TLV_DEC8"},
{ WIMAXASNCP_TLV_DEC16, "WIMAXASNCP_TLV_DEC16"},
{ WIMAXASNCP_TLV_DEC32, "WIMAXASNCP_TLV_DEC32"},
{ WIMAXASNCP_TLV_IP_ADDRESS, "WIMAXASNCP_TLV_IP_ADDRESS"},
{ WIMAXASNCP_TLV_IPV4_ADDRESS, "WIMAXASNCP_TLV_IPV4_ADDRESS"},
{ WIMAXASNCP_TLV_PROTOCOL_LIST, "WIMAXASNCP_TLV_PROTOCOL_LIST"},
{ WIMAXASNCP_TLV_PORT_RANGE_LIST, "WIMAXASNCP_TLV_PORT_RANGE_LIST"},
{ WIMAXASNCP_TLV_IP_ADDRESS_MASK_LIST, "WIMAXASNCP_TLV_IP_ADDRESS_MASK_LIST"},
{ WIMAXASNCP_TLV_VENDOR_SPECIFIC, "WIMAXASNCP_TLV_VENDOR_SPECIFIC"},
{ 0, NULL}
};
/* ========================================================================= */
static void wimaxasncp_proto_tree_add_tlv_ipv4_value(
tvbuff_t *tvb,
proto_tree *tree,
proto_item *tlv_item,
guint offset,
const wimaxasncp_dict_tlv_t *tlv_info)
{
int hf_value;
guint32 ip;
const gchar *addr_res;
if (tlv_info->hf_ipv4 != -1)
{
hf_value = tlv_info->hf_ipv4;
}
else
{
hf_value = tlv_info->hf_value;
}
ip = tvb_get_ipv4(tvb, offset);
addr_res = tvb_address_with_resolution_to_str(wmem_packet_scope(), tvb, AT_IPv4, offset);
proto_tree_add_ipv4_format(
tree, hf_value,
tvb, offset, 4, ip,
"Value: %s", addr_res);
proto_item_append_text(
tlv_item, " - %s", addr_res);
}
/* ========================================================================= */
static void wimaxasncp_proto_tree_add_tlv_ipv6_value(
tvbuff_t *tvb,
proto_tree *tree,
proto_item *tlv_item,
guint offset,
const wimaxasncp_dict_tlv_t *tlv_info)
{
int hf_value;
struct e_in6_addr ip;
const gchar *addr_res;
if (tlv_info->hf_ipv4 != -1)
{
hf_value = tlv_info->hf_ipv6;
}
else
{
hf_value = tlv_info->hf_value;
}
tvb_get_ipv6(tvb, offset, &ip);
addr_res = tvb_address_with_resolution_to_str(wmem_packet_scope(), tvb, AT_IPv6, offset);
proto_tree_add_ipv6_format(
tree, hf_value,
tvb, offset, 16, &ip,
"Value: %s", addr_res);
proto_item_append_text(
tlv_item, " - %s", addr_res);
}
/* ========================================================================= */
static void wimaxasncp_proto_tree_add_ether_value(
tvbuff_t *tvb,
proto_tree *tree,
proto_item *tlv_item,
guint offset,
guint length,
const wimaxasncp_dict_tlv_t *tlv_info)
{
int hf_value;
const guint8 *p;
const gchar *ether_name;
if (tlv_info->hf_bsid != -1)
{
hf_value = tlv_info->hf_bsid;
}
else
{
hf_value = tlv_info->hf_value;
}
p = tvb_get_ptr(tvb, offset, length);
ether_name = tvb_address_with_resolution_to_str(wmem_packet_scope(), tvb, AT_ETHER, offset);
proto_tree_add_ether_format(
tree, hf_value,
tvb, offset, length, p,
"Value: %s",
ether_name);
proto_item_append_text(
tlv_item, " - %s",
ether_name);
}
/* ========================================================================= */
static void wimaxasncp_dissect_tlv_value(
tvbuff_t *tvb,
packet_info *pinfo _U_,
proto_tree *tree,
proto_item *tlv_item,
const wimaxasncp_dict_tlv_t *tlv_info)
{
guint offset = 0;
guint length;
const guint max_show_bytes = 24; /* arbitrary */
static const gchar *hex_note = "[hex]";
length = tvb_reported_length(tvb);
switch (tlv_info->decoder)
{
case WIMAXASNCP_TLV_ENUM8:
{
if (length != 1)
{
/* encoding error */
break;
}
if (tlv_info->enums == NULL)
{
if (debug_enabled)
{
g_print("fix-me: enum values missing for TLV %s (%u)\n",
tlv_info->name, tlv_info->type);
}
}
if (tree)
{
guint8 value;
const gchar *s;
value = tvb_get_guint8(tvb, offset);
s = wimaxasncp_get_enum_name(tlv_info, value);
proto_tree_add_uint_format(
tree, tlv_info->hf_value,
tvb, offset, length, value,
"Value: %s (%u)", s, value);
proto_item_append_text(tlv_item, " - %s", s);
}
return;
}
case WIMAXASNCP_TLV_ENUM16:
{
if (length != 2)
{
/* encoding error */
break;
}
if (tlv_info->enums == NULL)
{
if (debug_enabled)
{
g_print("fix-me: enum values missing for TLV %s (%u)\n",
tlv_info->name, tlv_info->type);
}
}
if (tree)
{
guint16 value;
const gchar *s;
value = tvb_get_ntohs(tvb, offset);
s = wimaxasncp_get_enum_name(tlv_info, value);
proto_tree_add_uint_format(
tree, tlv_info->hf_value,
tvb, offset, length, value,
"Value: %s (%u)", s, value);
proto_item_append_text(tlv_item, " - %s", s);
}
return;
}
case WIMAXASNCP_TLV_ENUM32:
{
if (length != 4)
{
/* encoding error */
break;
}
if (tlv_info->enums == NULL)
{
if (debug_enabled)
{
g_print("fix-me: enum values missing for TLV %s (%u)\n",
tlv_info->name, tlv_info->type);
}
}
if (tree)
{
guint32 value;
const gchar *s;
value = tvb_get_ntohl(tvb, offset);
s = wimaxasncp_get_enum_name(tlv_info, value);
proto_tree_add_uint_format(
tree, tlv_info->hf_value,
tvb, offset, length, value,
"Value: %s (%u)", s, value);
proto_item_append_text(tlv_item, " - %s", s);
}
return;
}
case WIMAXASNCP_TLV_ETHER:
{
if (length != 6)
{
/* encoding error */
break;
}
if (tree)
{
wimaxasncp_proto_tree_add_ether_value(
tvb, tree, tlv_item, offset, length, tlv_info);
}
return;
}
case WIMAXASNCP_TLV_ASCII_STRING:
{
if (tree)
{
const gchar *s = tvb_get_string_enc(wmem_packet_scope(), tvb, offset, length, ENC_ASCII);
proto_tree_add_string_format(
tree, tlv_info->hf_value,
tvb, offset, length, s,
"Value: %s", s);
proto_item_append_text(
tlv_item, " - %s", s);
}
return;
}
case WIMAXASNCP_TLV_FLAG0:
{
if (length != 0)
{
/* encoding error */
break;
}
return;
}
case WIMAXASNCP_TLV_BITFLAGS8:
{
if (length != 1)
{
/* encoding error */
break;
}
if (tlv_info->enums == NULL)
{
/* enum values missing */
}
if (tree)
{
proto_tree *flags_tree;
proto_item *item;
guint8 value;
guint i;
value = tvb_get_guint8(tvb, offset);
item = proto_tree_add_item(
tree, tlv_info->hf_value,
tvb, offset, 1, ENC_NA);
proto_item_append_text(tlv_item, " - 0x%02x", value);
if (value != 0)
{
flags_tree = proto_item_add_subtree(
item, ett_wimaxasncp_tlv_value_bitflags8);
for (i = 0; i < 8; ++i)
{
guint8 mask;
mask = 1U << (7 - i);
if (value & mask)
{
const gchar *s;
s = wimaxasncp_get_enum_name(tlv_info, value & mask);
proto_tree_add_uint_format(
flags_tree, hf_wimaxasncp_tlv_value_bitflags8,
tvb, offset, length, value,
"Bit #%u is set: %s", i, s);
}
}
}
}
return;
}
case WIMAXASNCP_TLV_BITFLAGS16:
{
if (length != 2)
{
/* encoding error */
break;
}
if (tlv_info->enums == NULL)
{
/* enum values missing */
}
if (tree)
{
proto_tree *flags_tree;
proto_item *item;
guint16 value;
guint i;
value = tvb_get_ntohs(tvb, offset);
item = proto_tree_add_item(
tree, tlv_info->hf_value,
tvb, offset, 2, ENC_BIG_ENDIAN);
proto_item_append_text(tlv_item, " - 0x%04x", value);
if (value != 0)
{
flags_tree = proto_item_add_subtree(
item, ett_wimaxasncp_tlv_value_bitflags16);
for (i = 0; i < 16; ++i)
{
guint16 mask;
mask = 1U << (15 - i);
if (value & mask)
{
const gchar *s;
s = wimaxasncp_get_enum_name(tlv_info, value & mask);
proto_tree_add_uint_format(
flags_tree, hf_wimaxasncp_tlv_value_bitflags16,
tvb, offset, length, value,
"Bit #%u is set: %s", i, s);
}
}
}
}
return;
}
case WIMAXASNCP_TLV_BITFLAGS32:
{
if (length != 4)
{
/* encoding error */
break;
}
if (tlv_info->enums == NULL)
{
/* enum values missing */
}
if (tree)
{
proto_tree *flags_tree;
proto_item *item;
guint32 value;
guint i;
value = tvb_get_ntohl(tvb, offset);
item = proto_tree_add_item(
tree, tlv_info->hf_value,
tvb, offset, 4, ENC_BIG_ENDIAN);
proto_item_append_text(tlv_item, " - 0x%08x", value);
if (value != 0)
{
flags_tree = proto_item_add_subtree(
item, ett_wimaxasncp_tlv_value_bitflags32);
for (i = 0; i < 32; ++i)
{
guint32 mask;
mask = 1U << (31 - i);
if (value & mask)
{
const gchar *s;
s = wimaxasncp_get_enum_name(tlv_info, value & mask);
proto_tree_add_uint_format(
flags_tree, hf_wimaxasncp_tlv_value_bitflags32,
tvb, offset, length, value,
"Bit #%u is set: %s", i, s);
}
}
}
}
return;
}
case WIMAXASNCP_TLV_ID:
{
if (length == 4)
{
if (tree)
{
wimaxasncp_proto_tree_add_tlv_ipv4_value(
tvb, tree, tlv_item, offset, tlv_info);
}
return;
}
else if (length == 6)
{
if (tree)
{
wimaxasncp_proto_tree_add_ether_value(
tvb, tree, tlv_item, offset, length, tlv_info);
}
return;
}
else if (length == 16)
{
if (tree)
{
wimaxasncp_proto_tree_add_tlv_ipv6_value(
tvb, tree, tlv_item, offset, tlv_info);
}
return;
}
else
{
/* encoding error */
break;
}
}
case WIMAXASNCP_TLV_BYTES:
{
if (tree)
{
const gchar *format1;
const gchar *format2;
const guint8 *p = tvb_get_ptr(tvb, offset, length);
const gchar *s = bytestring_to_str(wmem_packet_scope(), p, MIN(length, max_show_bytes), 0);
if (length <= max_show_bytes)
{
format1 = "Value: %s";
format2 = " - %s";
}
else
{
format1 = "Value: %s...";
format2 = " - %s...";
}
proto_tree_add_bytes_format(
tree, tlv_info->hf_value,
tvb, offset, length, p,
format1, s);
proto_item_append_text(
tlv_item, format2, s);
}
return;
}
case WIMAXASNCP_TLV_HEX8:
{
if (length != 1)
{
/* encoding error */
break;
}
if (tree)
{
guint8 value;
value = tvb_get_guint8(tvb, offset);
proto_tree_add_uint_format(
tree, tlv_info->hf_value,
tvb, offset, length, value,
"Value: 0x%02x", value);
proto_item_append_text(tlv_item, " - 0x%02x", value);
}
return;
}
case WIMAXASNCP_TLV_HEX16:
{
if (length != 2)
{
/* encoding error */
break;
}
if (tree)
{
guint16 value;
value = tvb_get_ntohs(tvb, offset);
proto_tree_add_uint_format(
tree, tlv_info->hf_value,
tvb, offset, length, value,
"Value: 0x%04x", value);
proto_item_append_text(tlv_item, " - 0x%04x", value);
}
return;
}
case WIMAXASNCP_TLV_HEX32:
{
if (length != 4)
{
/* encoding error */
break;
}
if (tree)
{
guint32 value;
value = tvb_get_ntohl(tvb, offset);
proto_tree_add_uint_format(
tree, tlv_info->hf_value,
tvb, offset, length, value,
"Value: 0x%08x", value);
proto_item_append_text(tlv_item, " - 0x%08x", value);
}
return;
}
case WIMAXASNCP_TLV_DEC8:
{
if (length != 1)
{
/* encoding error */
break;
}
if (tree)
{
guint8 value;
value = tvb_get_guint8(tvb, offset);
proto_tree_add_uint_format(
tree, tlv_info->hf_value,
tvb, offset, length, value,
"Value: %u", value);
proto_item_append_text(tlv_item, " - %u", value);
}
return;
}
case WIMAXASNCP_TLV_DEC16:
{
if (length != 2)
{
/* encoding error */
break;
}
if (tree)
{
guint16 value;
value = tvb_get_ntohs(tvb, offset);
proto_tree_add_uint_format(
tree, tlv_info->hf_value,
tvb, offset, length, value,
"Value: %u", value);
proto_item_append_text(tlv_item, " - %u", value);
}
return;
}
case WIMAXASNCP_TLV_DEC32:
{
if (length != 4)
{
/* encoding error */
break;
}
if (tree)
{
guint32 value;
value = tvb_get_ntohl(tvb, offset);
proto_tree_add_uint_format(
tree, tlv_info->hf_value,
tvb, offset, length, value,
"Value: %u", value);
proto_item_append_text(tlv_item, " - %u", value);
}
return;
}
case WIMAXASNCP_TLV_TBD:
{
if (debug_enabled)
{
g_print(
"fix-me: TBD: TLV %s (%u)\n", tlv_info->name, tlv_info->type);
}
if (tree)
{
const gchar *format;
const guint8 *p = tvb_get_ptr(tvb, offset, length);
const gchar *s = bytestring_to_str(wmem_packet_scope(), p, MIN(length, max_show_bytes), 0);
if (length <= max_show_bytes)
{
format = "Value: %s %s";
}
else
{
format = "Value: %s %s...";
}
proto_tree_add_bytes_format(
tree, tlv_info->hf_value,
tvb, offset, length, p,
format, hex_note, s);
proto_item_append_text(tlv_item, " - TBD");
}
return;
}
case WIMAXASNCP_TLV_IP_ADDRESS:
{
if (length == 4)
{
if (tree)
{
wimaxasncp_proto_tree_add_tlv_ipv4_value(
tvb, tree, tlv_item, offset, tlv_info);
}
return;
}
else if (length == 16)
{
if (tree)
{
wimaxasncp_proto_tree_add_tlv_ipv6_value(
tvb, tree, tlv_item, offset, tlv_info);
}
return;
}
else
{
/* encoding error */
break;
}
}
case WIMAXASNCP_TLV_IPV4_ADDRESS:
{
if (length != 4)
{
/* encoding error */
break;
}
if (tree)
{
wimaxasncp_proto_tree_add_tlv_ipv4_value(
tvb, tree, tlv_item, offset, tlv_info);
}
return;
}
case WIMAXASNCP_TLV_PROTOCOL_LIST:
{
if (length % 2 != 0)
{
/* encoding error */
break;
}
if (tree && length > 0)
{
proto_tree *protocol_list_tree;
proto_item *item;
const guint max_protocols_in_tlv_item = 8; /* arbitrary */
protocol_list_tree = proto_tree_add_subtree(
tree, tvb, offset, length,
ett_wimaxasncp_tlv_protocol_list, NULL, "Value");
/* hidden item for filtering */
item = proto_tree_add_item(
protocol_list_tree, tlv_info->hf_value,
tvb, offset, length, ENC_NA);
PROTO_ITEM_SET_HIDDEN(item);
while (offset < tvb_reported_length(tvb))
{
guint16 protocol;
const gchar *protocol_name;
protocol = tvb_get_ntohs(tvb, offset);
protocol_name = ipprotostr(protocol);
proto_tree_add_uint_format(
protocol_list_tree, tlv_info->hf_protocol,
tvb, offset, 2, protocol,
"Protocol: %s (%u)", protocol_name, protocol);
if (offset == 0)
{
proto_item_append_text(tlv_item, " - %s", protocol_name);
}
else if (offset < 2 * max_protocols_in_tlv_item)
{
proto_item_append_text(tlv_item, ", %s", protocol_name);
}
else if (offset == 2 * max_protocols_in_tlv_item)
{
proto_item_append_text(tlv_item, ", ...");
}
offset += 2;
}
}
return;
}
case WIMAXASNCP_TLV_PORT_RANGE_LIST:
{
if (length % 4 != 0)
{
/* encoding error */
break;
}
if (tree && length > 0)
{
proto_tree *port_range_list_tree;
proto_item *item;
const guint max_port_ranges_in_tlv_item = 3; /* arbitrary */
port_range_list_tree = proto_tree_add_subtree(
tree, tvb, offset, length,
ett_wimaxasncp_tlv_port_range_list, NULL, "Value");
/* hidden item for filtering */
item = proto_tree_add_item(
port_range_list_tree, tlv_info->hf_value,
tvb, offset, length, ENC_NA);
PROTO_ITEM_SET_HIDDEN(item);
while (offset < tvb_reported_length(tvb))
{
guint16 portLow;
guint16 portHigh;
proto_tree* range_tree;
portLow = tvb_get_ntohs(tvb, offset);
portHigh = tvb_get_ntohs(tvb, offset + 2);
range_tree = proto_tree_add_subtree_format(
port_range_list_tree, tvb, offset, 4,
ett_wimaxasncp_port_range, NULL, "Port Range: %u-%u", portLow, portHigh);
/* hidden items are for filtering */
item = proto_tree_add_item(
range_tree, tlv_info->hf_port_low,
tvb, offset, 2, ENC_BIG_ENDIAN);
PROTO_ITEM_SET_HIDDEN(item);
item = proto_tree_add_item(
range_tree, tlv_info->hf_port_high,
tvb, offset + 2, 2, ENC_BIG_ENDIAN);
PROTO_ITEM_SET_HIDDEN(item);
if (offset == 0)
{
proto_item_append_text(
tlv_item, " - %u-%u", portLow, portHigh);
}
else if (offset < 4 * max_port_ranges_in_tlv_item)
{
proto_item_append_text(
tlv_item, ", %u-%u", portLow, portHigh);
}
else if (offset == 4 * max_port_ranges_in_tlv_item)
{
proto_item_append_text(tlv_item, ", ...");
}
offset += 4;
}
}
return;
}
case WIMAXASNCP_TLV_IP_ADDRESS_MASK_LIST:
{
/* --------------------------------------------------------------------
* The definion of these TLVs are ambiguous. The length in octets is
* described as Nx8 (IPv4) or Nx32 (IPv6), but this function cannot
* always differentiate between IPv4 and IPv6. For example, if length
* = 32, then is it IPv4 where N=4 (4x8) or IPv6 where N=1 (1x32)?
*
* For now, we presume lengths that *can* indicate an IPv6 address and
* mask list *do* denote an IPv6 address and mask list.
* --------------------------------------------------------------------
*/
if (length % 8 != 0)
{
/* encoding error */
break;
}
if (tree && length > 0)
{
proto_tree *ip_address_mask_list_tree;
proto_item *item;
ip_address_mask_list_tree = proto_tree_add_subtree(
tree, tvb, offset, length,
ett_wimaxasncp_tlv_ip_address_mask_list, NULL, "Value");
/* hidden item for filtering */
item = proto_tree_add_item(
ip_address_mask_list_tree, tlv_info->hf_value,
tvb, offset, length, ENC_NA);
PROTO_ITEM_SET_HIDDEN(item);
if (length % 32 == 0)
{
/* ------------------------------------------------------------
* presume IPv6
* ------------------------------------------------------------
*/
while (offset < tvb_reported_length(tvb))
{
proto_tree *ip_address_mask_tree;
ip_address_mask_tree = proto_tree_add_subtree(
ip_address_mask_list_tree, tvb, offset, 32,
ett_wimaxasncp_tlv_ip_address_mask, NULL, "IPv6 Address and Mask");
/* --------------------------------------------------------
* address
* --------------------------------------------------------
*/
proto_tree_add_item(
ip_address_mask_tree,
tlv_info->hf_ipv6,
tvb, offset, 16, ENC_NA);
/* too long to display ?
proto_item_append_text(
item, " - %s (%s)",
get_hostname6(&ip), ip6_to_str(&ip));
*/
offset += 16;
/* --------------------------------------------------------
* mask
* --------------------------------------------------------
*/
proto_tree_add_item(
ip_address_mask_tree,
tlv_info->hf_ipv6_mask,
tvb, offset, 16, ENC_NA);
/* too long to display ?
proto_item_append_text(
item, " / %s", s);
*/
offset += 16;
}
}
else
{
/* ------------------------------------------------------------
* IPv4
* ------------------------------------------------------------
*/
while (offset < tvb_reported_length(tvb))
{
proto_tree *ip_address_mask_tree;
guint32 ip;
const gchar *s;
ip_address_mask_tree = proto_tree_add_subtree(
ip_address_mask_list_tree, tvb, offset, 8,
ett_wimaxasncp_tlv_ip_address_mask, NULL, "IPv4 Address and Mask");
/* --------------------------------------------------------
* address
* --------------------------------------------------------
*/
ip = tvb_get_ipv4(tvb, offset);
proto_tree_add_item(
ip_address_mask_tree,
tlv_info->hf_ipv4,
tvb, offset, 4, ENC_BIG_ENDIAN);
proto_item_append_text(
item, " - %s (%s)",
get_hostname(ip), tvb_ip_to_str(tvb, offset));
offset += 4;
/* --------------------------------------------------------
* mask
* --------------------------------------------------------
*/
s = tvb_ip_to_str(tvb, offset);
proto_tree_add_item(
ip_address_mask_tree,
tlv_info->hf_ipv4_mask,
tvb, offset, 4, ENC_BIG_ENDIAN);
proto_item_append_text(
item, " / %s", s);
offset += 4;
}
}
}
return;
}
case WIMAXASNCP_TLV_EAP:
{
/*
* EAP payload, call eap dissector to dissect eap payload
*/
guint8 eap_code;
guint8 eap_type = 0;
/* Get code */
eap_code = tvb_get_guint8(tvb, offset);
if (eap_code == EAP_REQUEST || eap_code == EAP_RESPONSE)
{
/* Get type */
eap_type = tvb_get_guint8(tvb, offset + 4);
}
/* Add code and type to info column */
col_append_str(pinfo->cinfo, COL_INFO, " [");
col_append_str(pinfo->cinfo, COL_INFO,
val_to_str(eap_code, eap_code_vals, "Unknown code (0x%02X)"));
if (eap_code == EAP_REQUEST || eap_code == EAP_RESPONSE)
{
col_append_str(pinfo->cinfo, COL_INFO, ", ");
col_append_str(pinfo->cinfo, COL_INFO,
val_to_str_ext(eap_type, &eap_type_vals_ext, "Unknown type (0x%02X)"));
}
col_append_str(pinfo->cinfo, COL_INFO, "]");
{
proto_tree *eap_tree;
proto_item *item;
gboolean save_writable;
tvbuff_t *eap_tvb;
/* Create EAP subtree */
item = proto_tree_add_item(tree, tlv_info->hf_value, tvb,
offset, length, ENC_NA);
proto_item_set_text(item, "Value");
eap_tree = proto_item_add_subtree(item, ett_wimaxasncp_tlv_eap);
/* Also show high-level details in this root item */
proto_item_append_text(item, " (%s",
val_to_str(eap_code, eap_code_vals,
"Unknown code (0x%02X)"));
if (eap_code == EAP_REQUEST || eap_code == EAP_RESPONSE)
{
proto_item_append_text(item, ", %s",
val_to_str_ext(eap_type, &eap_type_vals_ext,
"Unknown type (0x%02X)"));
}
proto_item_append_text(item, ")");
/* Extract remaining bytes into new tvb */
eap_tvb = tvb_new_subset_remaining(tvb, offset);
/* Disable writing to info column while calling eap dissector */
save_writable = col_get_writable(pinfo->cinfo, -1);
col_set_writable(pinfo->cinfo, -1, FALSE);
/* Call the EAP dissector. */
call_dissector(eap_handle, eap_tvb, pinfo, eap_tree);
/* Restore previous writable state of info column */
col_set_writable(pinfo->cinfo, -1, save_writable);
}
return;
}
case WIMAXASNCP_TLV_VENDOR_SPECIFIC:
{
/* --------------------------------------------------------------------
* The format of the vendor specific information field (VSIF) is not
* clearly defined. It appears to be compound as the spec states
* that the vendor ID field shall be the first TLV embedded inside
* the VSIF. However, the vendor ID is shown as a 24-bit value. Does
* this mean the field is 24-bits? If so, how is alignment/padding
* handled?
*
* For now, we decode the vendor ID as a non-padded 24-bit value and
* dump the rest as hex.
* --------------------------------------------------------------------
*/
if (length < 3)
{
/* encoding error */
break;
}
if (tree)
{
proto_tree *vsif_tree;
proto_item *item;
guint32 vendorId;
const gchar *vendorName;
vsif_tree = proto_tree_add_subtree(
tree, tvb, offset, length,
ett_wimaxasncp_tlv_vendor_specific_information_field, NULL, "Value");
/* hidden item for filtering */
item = proto_tree_add_item(
vsif_tree, tlv_info->hf_value,
tvb, offset, length, ENC_NA);
PROTO_ITEM_SET_HIDDEN(item);
/* ----------------------------------------------------------------
* vendor ID (24-bit)
* ----------------------------------------------------------------
*/
vendorId = tvb_get_ntoh24(tvb, offset);
vendorName = val_to_str_ext_const(vendorId, &sminmpec_values_ext, "Unknown");
proto_tree_add_uint_format(
vsif_tree, tlv_info->hf_vendor_id,
tvb, offset, 3, vendorId,
"Vendor ID: %s (%u)", vendorName, vendorId);
proto_item_append_text(tlv_item, " - %s", vendorName);
offset += 3;
/* ----------------------------------------------------------------
* hex dump the rest
* ----------------------------------------------------------------
*/
if (offset < tvb_reported_length(tvb))
{
proto_tree_add_item(
vsif_tree, tlv_info->hf_vendor_rest_of_info,
tvb, offset, length - offset, ENC_NA);
}
}
return;
}
case WIMAXASNCP_TLV_UNKNOWN:
{
if (tree)
{
const gchar *format1;
const gchar *format2;
const guint8 *p = tvb_get_ptr(tvb, offset, length);
const gchar *s =
bytestring_to_str(wmem_packet_scope(), p, MIN(length, max_show_bytes), 0);
if (length <= max_show_bytes)
{
format1 = "Value: %s %s";
format2 = " - %s %s";
}
else
{
format1 = "Value: %s %s...";
format2 = " - %s %s...";
}
proto_tree_add_bytes_format(
tree, tlv_info->hf_value,
tvb, offset, length, p,
format1, hex_note, s);
proto_item_append_text(
tlv_item, format2, hex_note, s);
}
return;
}
default:
if (debug_enabled)
{
g_print(
"fix-me: unknown decoder: %d\n", tlv_info->decoder);
}
break;
}
/* default is hex dump */
if (tree)
{
const gchar *format;
const guint8 *p = tvb_get_ptr(tvb, offset, length);
const gchar *s = bytestring_to_str(wmem_packet_scope(), p, MIN(length, max_show_bytes), 0);
if (length <= max_show_bytes)
{
format = "Value: %s %s";
}
else
{
format = "Value: %s %s...";
}
proto_tree_add_bytes_format(
tree, hf_wimaxasncp_tlv_value_bytes,
tvb, offset, length, p,
format, hex_note, s);
}
}
/* ========================================================================= */
static guint dissect_wimaxasncp_tlvs(
tvbuff_t *tvb,
packet_info *pinfo,
proto_tree *tree)
{
guint offset;
offset = 0;
while (offset < tvb_reported_length(tvb))
{
const wimaxasncp_dict_tlv_t *tlv_info;
proto_tree *tlv_tree;
proto_item *tlv_item;
guint16 type;
guint16 length;
guint pad;
/* --------------------------------------------------------------------
* type and length
* --------------------------------------------------------------------
*/
type = tvb_get_ntohs(tvb, offset);
tlv_info = wimaxasncp_get_tlv_info(type);
length = tvb_get_ntohs(tvb, offset + 2);
#if 0 /* Commented out padding; As there is no mention of padding in
the Latest specification */
pad = 4 - (length % 4);
if (pad == 4)
{
pad = 0;
}
#endif
pad = 0;
{
proto_item *type_item;
gint tree_length = MIN(
(gint)(4 + length + pad), tvb_captured_length_remaining(tvb, offset));
tlv_item = proto_tree_add_item(
tree, tlv_info->hf_root,
tvb, offset, tree_length, ENC_NA);
/* Set label for tlv item */
proto_item_set_text(tlv_item, "TLV: %s", tlv_info->name);
/* Show code number if unknown */
if (tlv_info->decoder == WIMAXASNCP_TLV_UNKNOWN)
{
proto_item_append_text(tlv_item, " (%u)", type);
}
/* Indicate if a compound tlv */
if (tlv_info->decoder == WIMAXASNCP_TLV_COMPOUND)
{
proto_item_append_text(tlv_item, " [Compound]");
}
/* Create TLV subtree */
tlv_tree = proto_item_add_subtree(
tlv_item, ett_wimaxasncp_tlv);
/* Type (expert item if unknown) */
type_item = proto_tree_add_uint_format(
tlv_tree, hf_wimaxasncp_tlv_type,
tvb, offset, 2, type,
"Type: %s (%u)", tlv_info->name, type);
if (tlv_info->decoder == WIMAXASNCP_TLV_UNKNOWN)
{
expert_add_info_format(pinfo, type_item, &ei_wimaxasncp_tlv_type,
"Unknown TLV type (%u)",
type);
}
/* Length */
proto_tree_add_uint(
tlv_tree, hf_wimaxasncp_tlv_length,
tvb, offset + 2, 2, length);
}
offset += 4;
/* --------------------------------------------------------------------
* value
* --------------------------------------------------------------------
*/
if (tlv_info->decoder == WIMAXASNCP_TLV_COMPOUND)
{
if (length == 0)
{
/* error? compound, but no TLVs inside */
}
else if (tvb_reported_length_remaining(tvb, offset) > 0)
{
tvbuff_t *tlv_tvb;
/* N.B. Not padding out tvb length */
tlv_tvb = tvb_new_subset(
tvb, offset,
MIN(length, tvb_captured_length_remaining(tvb, offset)),
length);
/* N.B. This is a recursive call... */
dissect_wimaxasncp_tlvs(tlv_tvb, pinfo, tlv_tree);
}
else
{
/* this should throw */
tvb_ensure_bytes_exist(tvb, offset, length + pad);
}
}
else
{
tvbuff_t *tlv_tvb;
tvb_ensure_bytes_exist(tvb, offset, length + pad);
tlv_tvb = tvb_new_subset(
tvb, offset,
MIN(length, tvb_captured_length_remaining(tvb, offset)),
length);
wimaxasncp_dissect_tlv_value(
tlv_tvb, pinfo, tlv_tree, tlv_item, tlv_info);
}
offset += length + pad;
}
return offset;
}
/* ========================================================================= */
static guint dissect_wimaxasncp_backend(
tvbuff_t *tvb,
packet_info *pinfo,
proto_tree *tree)
{
guint offset = 0;
guint16 ui16;
guint32 ui32;
const guint8 *pmsid;
guint16 tid = 0;
gboolean dbit_show;
/* ------------------------------------------------------------------------
* MSID
* ------------------------------------------------------------------------
*/
if (tree)
{
proto_tree_add_item(
tree, hf_wimaxasncp_msid,
tvb, offset, 6, ENC_NA);
}
pmsid = tvb_ether_to_str(tvb, offset);
offset += 6;
/* ------------------------------------------------------------------------
* reserved
* ------------------------------------------------------------------------
*/
ui32 = tvb_get_ntohl(tvb, offset);
if (tree)
{
proto_tree_add_uint(
tree, hf_wimaxasncp_reserved1,
tvb, offset, 4, ui32);
}
offset += 4;
/* ------------------------------------------------------------------------
* transaction ID
* ------------------------------------------------------------------------
*/
dbit_show = FALSE;
ui16 = tvb_get_ntohs(tvb, offset);
if (show_transaction_id_d_bit)
{
const guint16 mask = 0x7fff;
if (ui16 & 0x8000)
{
proto_tree_add_uint_format(
tree, hf_wimaxasncp_transaction_id,
tvb, offset, 2, ui16,
"Transaction ID: D + 0x%04x (0x%04x)", mask & ui16, ui16);
tid = ui16 & mask;
dbit_show = TRUE;
}
else
{
proto_tree_add_uint_format(
tree, hf_wimaxasncp_transaction_id,
tvb, offset, 2, ui16,
"Transaction ID: 0x%04x", ui16);
tid = ui16;
}
}
else
{
proto_tree_add_uint(
tree, hf_wimaxasncp_transaction_id,
tvb, offset, 2, ui16);
tid = ui16;
}
offset += 2;
/* ------------------------------------------------------------------------
* reserved
* ------------------------------------------------------------------------
*/
ui16 = tvb_get_ntohs(tvb, offset);
if (tree)
{
proto_tree_add_uint(
tree, hf_wimaxasncp_reserved2,
tvb, offset, 2, ui16);
}
offset += 2;
/* ------------------------------------------------------------------------
* TLVs
* ------------------------------------------------------------------------
*/
if (tvb_reported_length_remaining(tvb, offset) > 0)
{
tvbuff_t *tlv_tvb;
tlv_tvb = tvb_new_subset_remaining(tvb, offset);
offset += dissect_wimaxasncp_tlvs(tlv_tvb, pinfo, tree);
}
col_append_fstr(pinfo->cinfo, COL_INFO, " - MSID:%s", pmsid);
if (dbit_show)
{
col_append_fstr(pinfo->cinfo, COL_INFO, ", TID:D+0x%04x", tid);
}
else
{
col_append_fstr(pinfo->cinfo, COL_INFO, ", TID:0x%04x", tid);
}
return offset;
}
/* ========================================================================= */
static const gchar*
match_ver_value_string(
const guint32 val,
const ver_value_string* const strings,
const guint32 max_ver)
{
const ver_value_string* vvs;
const ver_value_string* res = NULL;
/* loop on the levels, from max to 0 */
for(vvs=strings; vvs->vs.strptr; vvs++)
{
if ((vvs->vs.value == val) && (vvs->since <= max_ver))
{
if (!res || (vvs->since > res->since))
{
res = vvs;
}
}
}
return res? res->vs.strptr : NULL;
}
static int
dissect_wimaxasncp(
tvbuff_t *tvb,
packet_info *pinfo,
proto_tree *tree,
void *data _U_)
{
static const gchar unknown[] = "Unknown";
/* Set up structures needed to add the protocol subtree and manage it */
proto_item *packet_item = NULL;
proto_item *item = NULL;
proto_tree *wimaxasncp_tree = NULL;
tvbuff_t *subtree;
guint offset;
guint8 ui8;
guint8 function_type;
const gchar *function_type_name;
proto_item *function_type_item;
guint16 length;
const wimaxasncp_func_msg_t *p = NULL;
const gchar *message_name;
gsize i;
/* ------------------------------------------------------------------------
* First, we do some heuristics to check if the packet cannot be our
* protocol.
* ------------------------------------------------------------------------
*/
/* Should we check a minimum size? If so, uncomment out the following
* code. */
#if 0
if (tvb_reported_length(tvb) < WIMAXASNCP_HEADER_SIZE)
{
return 0;
}
#endif
/* We currently only support version 1. */
if (tvb_bytes_exist(tvb, 0, 1) && tvb_get_guint8(tvb, 0) != 1)
{
return 0;
}
/* ------------------------------------------------------------------------
* Initialize the protocol and info column.
* ------------------------------------------------------------------------
*/
/* Make entries in Protocol column and Info column on summary display */
col_set_str(pinfo->cinfo, COL_PROTOCOL, "WiMAX");
/* We'll fill in the "Info" column after fetch data, so we clear the
column first in case calls to fetch data from the packet throw an
exception. */
col_clear(pinfo->cinfo, COL_INFO);
/* ========================================================================
* Disesction starts here
* ========================================================================
*/
/* ------------------------------------------------------------------------
* total packet, we'll adjust after we read the length field
* ------------------------------------------------------------------------
*/
offset = 0;
/* Register protocol fields, etc if haven't done yet. */
if (hf_wimaxasncp_version == -1)
{
proto_registrar_get_byname("wimaxasncp.version");
}
if (tree)
{
packet_item = proto_tree_add_item(
tree, proto_wimaxasncp,
tvb, 0, MIN(WIMAXASNCP_HEADER_LENGTH_END, tvb_captured_length(tvb)), ENC_NA);
wimaxasncp_tree = proto_item_add_subtree(
packet_item, ett_wimaxasncp);
}
/* ------------------------------------------------------------------------
* version
* ------------------------------------------------------------------------
*/
if (tree)
{
proto_tree_add_item(
wimaxasncp_tree, hf_wimaxasncp_version,
tvb, offset, 1, ENC_BIG_ENDIAN);
}
offset += 1;
/* ------------------------------------------------------------------------
* flags
* ------------------------------------------------------------------------
*/
ui8 = tvb_get_guint8(tvb, offset);
if (tree)
{
proto_tree *flags_tree;
if (ui8 == 0)
{
proto_tree_add_uint_format(
wimaxasncp_tree, hf_wimaxasncp_flags,
tvb, offset, 1, ui8,
"Flags: 0x%02x", ui8);
}
else
{
guint j;
item = proto_tree_add_uint_format(
wimaxasncp_tree, hf_wimaxasncp_flags,
tvb, offset, 1, ui8,
"Flags: ");
if (ui8 & (WIMAXASNCP_FLAGS_T | WIMAXASNCP_FLAGS_R))
{
if (ui8 & WIMAXASNCP_FLAGS_T)
{
proto_item_append_text(item, "T");
}
if (ui8 & WIMAXASNCP_FLAGS_R)
{
proto_item_append_text(item, "R");
}
proto_item_append_text(item, " - ");
}
proto_item_append_text(item, "0x%02x", ui8);
flags_tree = proto_item_add_subtree(
item, ett_wimaxasncp_flags);
for (j = 0; j < 8; ++j)
{
guint8 mask;
mask = 1U << (7 - j);
/* Only add flags that are set */
if (ui8 & mask)
{
proto_tree_add_uint_format(
flags_tree, hf_wimaxasncp_flags,
tvb, offset, 1, ui8,
"Bit #%u is set: %s",
j,
val_to_str(
ui8 & mask, wimaxasncp_flag_vals, "Unknown"));
}
}
}
}
offset += 1;
/* ------------------------------------------------------------------------
* function type
* ------------------------------------------------------------------------
*/
function_type = tvb_get_guint8(tvb, offset);
function_type_name = match_ver_value_string(function_type,
wimaxasncp_function_type_vals,
global_wimaxasncp_nwg_ver);
if (function_type_name)
{
/* add the item to the tree */
proto_tree_add_uint_format(
wimaxasncp_tree, hf_wimaxasncp_function_type,
tvb, offset, 1, function_type,
"%s (%u)", function_type_name, function_type);
}
else
{
/* if not matched, add the item and append expert item */
function_type_item = proto_tree_add_uint_format(
wimaxasncp_tree, hf_wimaxasncp_function_type,
tvb, offset, 1, function_type,
"Unknown (%u)", function_type);
expert_add_info_format(pinfo, function_type_item,
&ei_wimaxasncp_function_type,
"Unknown function type (%u)",
function_type);
}
offset += 1;
/* ------------------------------------------------------------------------
* OP ID and message type
* ------------------------------------------------------------------------
*/
ui8 = tvb_get_guint8(tvb, offset);
/* --------------------------------------------------------------------
* OP ID
* --------------------------------------------------------------------
*/
item = proto_tree_add_uint_format(
wimaxasncp_tree, hf_wimaxasncp_op_id,
tvb, offset, 1, ui8,
"OP ID: %s", val_to_str(ui8 >> 5, wimaxasncp_op_id_vals, unknown));
proto_item_append_text(item, " (%u)", ((ui8 >> 5) & 7));
/* use the function type to find the message vals */
for (i = 0; i < array_length(wimaxasncp_func_to_msg_vals_map); ++i)
{
p = &wimaxasncp_func_to_msg_vals_map[i];
if (function_type == p->function_type)
{
break;
}
}
/* --------------------------------------------------------------------
* message type
* --------------------------------------------------------------------
*/
message_name = p ? match_ver_value_string(0x1f & ui8, p->vals, global_wimaxasncp_nwg_ver) : unknown;
if (message_name == NULL)
{
message_name = unknown;
}
item = proto_tree_add_uint_format(
wimaxasncp_tree, hf_wimaxasncp_op_id,
tvb, offset, 1, ui8,
"Message Type: %s", message_name);
proto_item_append_text(item, " (%u)", ui8 & 0x1F);
/* Add expert item if not matched */
if (strcmp(message_name, unknown) == 0)
{
expert_add_info_format(pinfo, item, &ei_wimaxasncp_op_id,
"Unknown message op (%u)",
0x1f & ui8);
}
col_add_str(pinfo->cinfo, COL_INFO, message_name);
offset += 1;
/* ------------------------------------------------------------------------
* length
* ------------------------------------------------------------------------
*/
length = tvb_get_ntohs(tvb, offset);
if (tree)
{
proto_item_set_len(
packet_item, MAX(WIMAXASNCP_HEADER_LENGTH_END, length));
item = proto_tree_add_uint(
wimaxasncp_tree, hf_wimaxasncp_length,
tvb, offset, 2, length);
}
offset += 2;
if (length < WIMAXASNCP_HEADER_SIZE)
{
expert_add_info(pinfo, item, &ei_wimaxasncp_length_bad);
if (tree)
{
proto_item_append_text(
item, " [error: specified length less than header size (20)]");
}
if (length <= WIMAXASNCP_HEADER_LENGTH_END)
{
return offset;
}
}
/* ------------------------------------------------------------------------
* remaining header fields and TLVs
* ------------------------------------------------------------------------
*/
subtree = tvb_new_subset(
tvb, offset,
MIN(length, tvb_captured_length_remaining(tvb, offset)),
length - WIMAXASNCP_HEADER_LENGTH_END);
offset += dissect_wimaxasncp_backend(
subtree, pinfo, wimaxasncp_tree);
/* ------------------------------------------------------------------------
* done, return the amount of data this dissector was able to dissect
* ------------------------------------------------------------------------
*/
return offset;
}
/* ========================================================================= */
/* Modify the given string to make a suitable display filter */
static char *alnumerize(
char *name)
{
char *r = name; /* read pointer */
char *w = name; /* write pointer */
char c;
for ( ; (c = *r); ++r)
{
if (g_ascii_isalnum(c) || c == '_' || c == '.')
{
/* These characters are fine - copy them */
*(w++) = c;
}
else if (c == ' ' || c == '-' || c == '/')
{
/* Skip these others if haven't written any characters out yet */
if (w == name)
{
continue;
}
/* Skip if we would produce multiple adjacent '_'s */
if (*(w - 1) == '_')
{
continue;
}
/* OK, replace with underscore */
*(w++) = '_';
}
/* Other undesirable characters are just skipped */
}
/* Terminate and return modified string */
*w = '\0';
return name;
}
/* ========================================================================= */
static void add_reg_info(
int *hf_ptr,
const char *name,
const char *abbrev,
enum ftenum type,
int display,
const char *blurb)
{
hf_register_info hf = {
hf_ptr, { name, abbrev, type, display, NULL, 0x0, blurb, HFILL } };
g_array_append_val(wimaxasncp_build_dict.hf, hf);
}
/* ========================================================================= */
static void add_tlv_reg_info(
wimaxasncp_dict_tlv_t *tlv)
{
char *name;
char *abbrev;
const char *root_blurb;
char *blurb;
/* ------------------------------------------------------------------------
* add root reg info
* ------------------------------------------------------------------------
*/
name = g_strdup(tlv->name);
abbrev = alnumerize(g_strdup_printf("wimaxasncp.tlv.%s", tlv->name));
switch (tlv->decoder)
{
case WIMAXASNCP_TLV_UNKNOWN:
root_blurb = "type=Unknown";
break;
case WIMAXASNCP_TLV_TBD:
root_blurb = g_strdup_printf("type=%u, TBD", tlv->type);
break;
case WIMAXASNCP_TLV_COMPOUND:
root_blurb = g_strdup_printf("type=%u, Compound", tlv->type);
break;
case WIMAXASNCP_TLV_FLAG0:
root_blurb = g_strdup_printf("type=%u, Value = Null", tlv->type);
break;
default:
root_blurb = g_strdup_printf("type=%u", tlv->type);
break;
}
add_reg_info(
&tlv->hf_root, name, abbrev, FT_BYTES, BASE_NONE, root_blurb);
/* ------------------------------------------------------------------------
* add value(s) reg info
* ------------------------------------------------------------------------
*/
name = g_strdup("Value");
abbrev = alnumerize(g_strdup_printf("wimaxasncp.tlv.%s.value", tlv->name));
blurb = g_strdup_printf("value for type=%u", tlv->type);
switch (tlv->decoder)
{
case WIMAXASNCP_TLV_UNKNOWN:
g_free(blurb);
add_reg_info(
&tlv->hf_value, name, abbrev, FT_BYTES, BASE_NONE,
"value for unknown type");
break;
case WIMAXASNCP_TLV_TBD:
add_reg_info(
&tlv->hf_value, name, abbrev, FT_BYTES, BASE_NONE, blurb);
break;
case WIMAXASNCP_TLV_COMPOUND:
case WIMAXASNCP_TLV_FLAG0:
g_free(name);
g_free(abbrev);
g_free(blurb);
break;
case WIMAXASNCP_TLV_BYTES:
add_reg_info(
&tlv->hf_value, name, abbrev, FT_BYTES, BASE_NONE, blurb);
break;
case WIMAXASNCP_TLV_ENUM8:
add_reg_info(
&tlv->hf_value, name, abbrev, FT_UINT8, BASE_DEC, blurb);
break;
case WIMAXASNCP_TLV_ENUM16:
add_reg_info(
&tlv->hf_value, name, abbrev, FT_UINT16, BASE_DEC, blurb);
break;
case WIMAXASNCP_TLV_ENUM32:
add_reg_info(
&tlv->hf_value, name, abbrev, FT_UINT32, BASE_DEC, blurb);
break;
case WIMAXASNCP_TLV_ETHER:
add_reg_info(
&tlv->hf_value, name, abbrev, FT_ETHER, BASE_NONE, blurb);
break;
case WIMAXASNCP_TLV_ASCII_STRING:
add_reg_info(
&tlv->hf_value, name, abbrev, FT_STRING, BASE_NONE, blurb);
break;
case WIMAXASNCP_TLV_BITFLAGS8:
add_reg_info(
&tlv->hf_value, name, abbrev, FT_UINT8, BASE_HEX, blurb);
break;
case WIMAXASNCP_TLV_BITFLAGS16:
add_reg_info(
&tlv->hf_value, name, abbrev, FT_UINT16, BASE_HEX, blurb);
break;
case WIMAXASNCP_TLV_BITFLAGS32:
add_reg_info(
&tlv->hf_value, name, abbrev, FT_UINT32, BASE_HEX, blurb);
break;
case WIMAXASNCP_TLV_ID:
g_free(abbrev);
abbrev = alnumerize(
g_strdup_printf("wimaxasncp.tlv.%s.ipv4_value", tlv->name));
add_reg_info(
&tlv->hf_ipv4, "IPv4 Address", abbrev, FT_IPv4, BASE_NONE, blurb);
abbrev = alnumerize(
g_strdup_printf("wimaxasncp.tlv.%s.ipv6_value", tlv->name));
add_reg_info(
&tlv->hf_ipv6, "IPv6 Address", abbrev, FT_IPv6, BASE_NONE, blurb);
abbrev = alnumerize(
g_strdup_printf("wimaxasncp.tlv.%s.bsid_value", tlv->name));
add_reg_info(
&tlv->hf_bsid, "BS ID", abbrev, FT_ETHER, BASE_NONE, blurb);
break;
case WIMAXASNCP_TLV_HEX8:
add_reg_info(
&tlv->hf_value, name, abbrev, FT_UINT8, BASE_HEX, blurb);
break;
case WIMAXASNCP_TLV_HEX16:
add_reg_info(
&tlv->hf_value, name, abbrev, FT_UINT16, BASE_HEX, blurb);
break;
case WIMAXASNCP_TLV_HEX32:
add_reg_info(
&tlv->hf_value, name, abbrev, FT_UINT32, BASE_HEX, blurb);
break;
case WIMAXASNCP_TLV_DEC8:
add_reg_info(
&tlv->hf_value, name, abbrev, FT_UINT8, BASE_DEC, blurb);
break;
case WIMAXASNCP_TLV_DEC16:
add_reg_info(
&tlv->hf_value, name, abbrev, FT_UINT16, BASE_DEC, blurb);
break;
case WIMAXASNCP_TLV_DEC32:
add_reg_info(
&tlv->hf_value, name, abbrev, FT_UINT32, BASE_DEC, blurb);
break;
case WIMAXASNCP_TLV_IP_ADDRESS:
g_free(abbrev);
abbrev = alnumerize(
g_strdup_printf("wimaxasncp.tlv.%s.ipv4_value", tlv->name));
add_reg_info(
&tlv->hf_ipv4, "IPv4 Address", abbrev, FT_IPv4, BASE_NONE, blurb);
abbrev = alnumerize(
g_strdup_printf("wimaxasncp.tlv.%s.ipv6_value", tlv->name));
add_reg_info(
&tlv->hf_ipv6, "IPv6 Address", abbrev, FT_IPv6, BASE_NONE, blurb);
break;
case WIMAXASNCP_TLV_IPV4_ADDRESS:
add_reg_info(
&tlv->hf_value, name, abbrev, FT_IPv4, BASE_NONE, blurb);
break;
case WIMAXASNCP_TLV_PROTOCOL_LIST:
add_reg_info(
&tlv->hf_value, name, abbrev, FT_BYTES, BASE_NONE, blurb);
blurb = g_strdup_printf("value component for type=%u", tlv->type);
abbrev = alnumerize(
g_strdup_printf("wimaxasncp.tlv.%s.value.protocol", tlv->name));
add_reg_info(
&tlv->hf_protocol, "Protocol", abbrev, FT_UINT16, BASE_DEC, blurb);
break;
case WIMAXASNCP_TLV_PORT_RANGE_LIST:
add_reg_info(
&tlv->hf_value, name, abbrev, FT_BYTES, BASE_NONE, blurb);
blurb = g_strdup_printf("value component for type=%u", tlv->type);
abbrev = alnumerize(
g_strdup_printf("wimaxasncp.tlv.%s.value.port_low", tlv->name));
add_reg_info(
&tlv->hf_port_low, "Port Low", abbrev, FT_UINT16, BASE_DEC, blurb);
abbrev = alnumerize(
g_strdup_printf("wimaxasncp.tlv.%s.value.port_high", tlv->name));
add_reg_info(
&tlv->hf_port_high, "Port High", abbrev, FT_UINT16, BASE_DEC, blurb);
break;
case WIMAXASNCP_TLV_IP_ADDRESS_MASK_LIST:
add_reg_info(
&tlv->hf_value, name, abbrev, FT_BYTES, BASE_NONE, blurb);
blurb = g_strdup_printf("value component for type=%u", tlv->type);
abbrev = alnumerize(
g_strdup_printf("wimaxasncp.tlv.%s.value.ipv4", tlv->name));
add_reg_info(
&tlv->hf_ipv4, "IPv4 Address", abbrev, FT_IPv4, BASE_NONE, blurb);
abbrev = alnumerize(
g_strdup_printf("wimaxasncp.tlv.%s.value.ipv4_mask", tlv->name));
add_reg_info(
&tlv->hf_ipv4_mask, "IPv4 Mask", abbrev, FT_IPv4, BASE_NONE, blurb);
abbrev = alnumerize(
g_strdup_printf("wimaxasncp.tlv.%s.value.ipv6", tlv->name));
add_reg_info(
&tlv->hf_ipv6, "IPv6 Address", abbrev, FT_IPv6, BASE_NONE, blurb);
abbrev = alnumerize(
g_strdup_printf("wimaxasncp.tlv.%s.value.ipv6_mask", tlv->name));
add_reg_info(
&tlv->hf_ipv6_mask, "IPv6 Mask", abbrev, FT_IPv6, BASE_NONE, blurb);
break;
case WIMAXASNCP_TLV_VENDOR_SPECIFIC:
add_reg_info(
&tlv->hf_value, name, abbrev, FT_BYTES, BASE_NONE, blurb);
blurb = g_strdup_printf("value component for type=%u", tlv->type);
abbrev = alnumerize(
g_strdup_printf("wimaxasncp.tlv.%s.value.vendor_id", tlv->name));
add_reg_info(
&tlv->hf_vendor_id, "Vendor ID", abbrev, FT_UINT24, BASE_DEC, blurb);
abbrev = alnumerize(
g_strdup_printf(
"wimaxasncp.tlv.%s.value.vendor_rest_of_info", tlv->name));
add_reg_info(
&tlv->hf_vendor_rest_of_info, "Rest of Info", abbrev, FT_BYTES, BASE_NONE,
blurb);
break;
case WIMAXASNCP_TLV_EAP:
blurb = g_strdup_printf("EAP payload embedded in %s", name);
add_reg_info(
&tlv->hf_value, name, abbrev, FT_BYTES, BASE_NONE, blurb);
break;
default:
add_reg_info(
&tlv->hf_value, name, abbrev, FT_BYTES, BASE_NONE, blurb);
if (debug_enabled)
{
g_print(
"fix-me: unknown decoder: %d\n", tlv->decoder);
}
break;
}
}
/* ========================================================================= */
/* Register the protocol fields and subtrees with Wireshark */
static void
register_wimaxasncp_fields(const char* unused _U_)
{
gboolean debug_parser;
gboolean dump_dict;
gchar *dir;
gchar* dict_error;
/* ------------------------------------------------------------------------
* List of header fields
* ------------------------------------------------------------------------
*/
static hf_register_info hf_base[] = {
{
&hf_wimaxasncp_version, /* ID */
{
"Version", /* FIELDNAME */
"wimaxasncp.version", /* PROTOABBREV.FIELDABBRE */
FT_UINT8, /* FIELDTYPE */
BASE_DEC, /* FIELDBASE */
NULL, /* FIELDCONVERT */
0x0, /* BITMASK */
NULL, /* FIELDDESCR */
HFILL /* HFILL */
}
},
{
&hf_wimaxasncp_flags,
{
"Flags",
"wimaxasncp.flags",
FT_UINT8,
BASE_HEX,
NULL,
0xff,
NULL,
HFILL
}
},
{
&hf_wimaxasncp_function_type,
{
"Function Type",
"wimaxasncp.function_type",
FT_UINT8,
BASE_DEC,
NULL,
0x0,
NULL,
HFILL
}
},
{
&hf_wimaxasncp_op_id,
{
"OP ID",
"wimaxasncp.opid",
FT_UINT8,
BASE_HEX,
VALS(wimaxasncp_op_id_vals),
0xE0,
NULL,
HFILL
}
},
#if 0
{
&hf_wimaxasncp_message_type,
{
"Message Type",
"wimaxasncp.message_type",
FT_UINT8,
BASE_HEX,
NULL,
0x1F,
NULL,
HFILL
}
},
#endif
#if 0
{
&hf_wimaxasncp_qos_msg,
{
"Message Type",
"wimaxasncp.qos_msg",
FT_UINT8,
BASE_HEX,
NULL,
0x1F,
NULL,
HFILL
}
},
#endif
#if 0
{
&hf_wimaxasncp_ho_control_msg,
{
"Message Type",
"wimaxasncp.ho_control_msg",
FT_UINT8,
BASE_HEX,
NULL,
0x1F,
NULL,
HFILL
}
},
#endif
#if 0
{
&hf_wimaxasncp_data_path_control_msg,
{
"Message Type",
"wimaxasncp.data_path_control_msg",
FT_UINT8,
BASE_HEX,
NULL,
0x1F,
NULL,
HFILL
}
},
#endif
#if 0
{
&hf_wimaxasncp_context_delivery_msg,
{
"Message Type",
"wimaxasncp.context_delivery_msg",
FT_UINT8,
BASE_HEX,
NULL,
0x1F,
NULL,
HFILL
}
},
#endif
#if 0
{
&hf_wimaxasncp_r3_mobility_msg,
{
"Message Type",
"wimaxasncp.r3_mobility_msg",
FT_UINT8,
BASE_HEX,
NULL,
0x1F,
NULL,
HFILL
}
},
#endif
#if 0
{
&hf_wimaxasncp_paging_msg,
{
"Message Type",
"wimaxasncp.paging_msg",
FT_UINT8,
BASE_HEX,
NULL,
0x1F,
NULL,
HFILL
}
},
#endif
#if 0
{
&hf_wimaxasncp_rrm_msg,
{
"Message Type",
"wimaxasncp.rrm_msg",
FT_UINT8,
BASE_HEX,
NULL,
0x1F,
NULL,
HFILL
}
},
#endif
#if 0
{
&hf_wimaxasncp_authentication_msg,
{
"Message Type",
"wimaxasncp.authentication_msg",
FT_UINT8,
BASE_HEX,
NULL,
0x1F,
NULL,
HFILL
}
},
#endif
#if 0
{
&hf_wimaxasncp_ms_state_msg,
{
"Message Type",
"wimaxasncp.ms_state_msg",
FT_UINT8,
BASE_HEX,
NULL,
0x1F,
NULL,
HFILL
}
},
#endif
#if 0
{
&hf_wimaxasncp_reauthentication_msg,
{
"Message Type",
"wimaxasncp.reauthentication_msg",
FT_UINT8,
BASE_HEX,
NULL,
0x1F,
NULL,
HFILL
}
},
#endif
#if 0
{
&hf_wimaxasncp_session_msg,
{
"Message Type",
"wimaxasncp.session_msg",
FT_UINT8,
BASE_HEX,
NULL,
0x1F,
NULL,
HFILL
}
},
#endif
{
&hf_wimaxasncp_length,
{
"Length",
"wimaxasncp.length",
FT_UINT16,
BASE_DEC,
NULL,
0x0,
NULL,
HFILL
}
},
{
&hf_wimaxasncp_msid,
{
"MSID",
"wimaxasncp.msid",
FT_ETHER,
BASE_NONE,
NULL,
0x0,
NULL,
HFILL
}
},
{
&hf_wimaxasncp_reserved1,
{
"Reserved",
"wimaxasncp.reserved1",
FT_UINT32,
BASE_HEX,
NULL,
0x0,
NULL,
HFILL
}
},
{
&hf_wimaxasncp_transaction_id,
{
"Transaction ID",
"wimaxasncp.transaction_id",
FT_UINT16,
BASE_HEX,
NULL,
0x0,
NULL,
HFILL
}
},
{
&hf_wimaxasncp_reserved2,
{
"Reserved",
"wimaxasncp.reserved2",
FT_UINT16,
BASE_HEX,
NULL,
0x0,
NULL,
HFILL
}
},
#if 0
{
&hf_wimaxasncp_tlv,
{
"TLV",
"wimaxasncp.tlv",
FT_BYTES,
BASE_NONE,
NULL,
0x0,
NULL,
HFILL
}
},
#endif
{
&hf_wimaxasncp_tlv_type,
{
"Type",
"wimaxasncp.tlv.type",
FT_UINT16,
BASE_DEC,
NULL,
0x0,
NULL,
HFILL
}
},
{
&hf_wimaxasncp_tlv_length,
{
"Length",
"wimaxasncp.tlv.length",
FT_UINT16,
BASE_DEC,
NULL,
0x0,
NULL,
HFILL
}
},
{
&hf_wimaxasncp_tlv_value_bytes,
{
"Value",
"wimaxasncp.tlv_value_bytes",
FT_BYTES,
BASE_NONE,
NULL,
0x0,
NULL,
HFILL
}
},
{
&hf_wimaxasncp_tlv_value_bitflags8,
{
"Value",
"wimaxasncp.tlv_value_bitflags8",
FT_UINT8,
BASE_HEX,
NULL,
0xff,
NULL,
HFILL
}
},
{
&hf_wimaxasncp_tlv_value_bitflags16,
{
"Value",
"wimaxasncp.tlv_value_bitflags16",
FT_UINT16,
BASE_HEX,
NULL,
0xffff,
NULL,
HFILL
}
},
{
&hf_wimaxasncp_tlv_value_bitflags32,
{
"Value",
"wimaxasncp.tlv_value_bitflags32",
FT_UINT32,
BASE_HEX,
NULL,
0xffffffff,
NULL,
HFILL
}
},
#if 0
{
&hf_wimaxasncp_tlv_value_protocol,
{
"Value",
"wimaxasncp.tlv_value_protocol",
FT_UINT16,
BASE_DEC,
NULL,
0x0,
NULL,
HFILL
}
},
#endif
#if 0
{
&hf_wimaxasncp_tlv_value_vendor_id,
{
"Vendor ID",
"wimaxasncp.tlv_value_vendor_id",
FT_UINT24,
BASE_DEC,
NULL,
0x0,
NULL,
HFILL
}
}
#endif
};
/* ------------------------------------------------------------------------
* Protocol subtree array
* ------------------------------------------------------------------------
*/
static gint *ett_base[] = {
&ett_wimaxasncp,
&ett_wimaxasncp_flags,
&ett_wimaxasncp_tlv,
&ett_wimaxasncp_tlv_value_bitflags8,
&ett_wimaxasncp_tlv_value_bitflags16,
&ett_wimaxasncp_tlv_value_bitflags32,
&ett_wimaxasncp_tlv_protocol_list,
&ett_wimaxasncp_tlv_port_range_list,
&ett_wimaxasncp_tlv_ip_address_mask_list,
&ett_wimaxasncp_tlv_ip_address_mask,
&ett_wimaxasncp_tlv_eap,
&ett_wimaxasncp_tlv_vendor_specific_information_field,
&ett_wimaxasncp_port_range
};
static ei_register_info ei[] = {
{ &ei_wimaxasncp_tlv_type, { "wimaxasncp.tlv.type.unknown", PI_UNDECODED, PI_WARN, "Unknown tlv", EXPFILL }},
{ &ei_wimaxasncp_function_type, { "wimaxasncp.function_type.unknown", PI_UNDECODED, PI_WARN, "Unknown function type", EXPFILL }},
{ &ei_wimaxasncp_op_id, { "wimaxasncp.opid.unknown", PI_UNDECODED, PI_WARN, "Unknown message op", EXPFILL }},
{ &ei_wimaxasncp_length_bad, { "wimaxasncp.length.bad", PI_MALFORMED, PI_ERROR, "Bad length", EXPFILL }},
};
expert_module_t* expert_wimaxasncp;
/* ------------------------------------------------------------------------
* load the XML dictionary
* ------------------------------------------------------------------------
*/
debug_parser = getenv("WIRESHARK_DEBUG_WIMAXASNCP_DICT_PARSER") != NULL;
dump_dict = getenv("WIRESHARK_DUMP_WIMAXASNCP_DICT") != NULL;
dir = g_strdup_printf(
"%s" G_DIR_SEPARATOR_S "wimaxasncp",
get_datafile_dir());
wimaxasncp_dict =
wimaxasncp_dict_scan(dir, "dictionary.xml", debug_parser, &dict_error);
g_free(dir);
if (dict_error)
{
report_failure("wimaxasncp - %s", dict_error);
g_free(dict_error);
}
if (wimaxasncp_dict && dump_dict)
{
wimaxasncp_dict_print(stdout, wimaxasncp_dict);
}
/* ------------------------------------------------------------------------
* build the hf and ett dictionary entries
* ------------------------------------------------------------------------
*/
wimaxasncp_build_dict.hf =
g_array_new(FALSE, TRUE, sizeof(hf_register_info));
g_array_append_vals(
wimaxasncp_build_dict.hf, hf_base, array_length(hf_base));
wimaxasncp_build_dict.ett =
g_array_new(FALSE, TRUE, sizeof(gint*));
g_array_append_vals(
wimaxasncp_build_dict.ett, ett_base, array_length(ett_base));
if (wimaxasncp_dict)
{
wimaxasncp_dict_tlv_t *tlv;
/* For each TLV found in XML file */
for (tlv = wimaxasncp_dict->tlvs; tlv; tlv = tlv->next)
{
if (tlv->enums)
{
/* Create array for enums */
wimaxasncp_dict_enum_t *e;
GArray* array = g_array_new(TRUE, TRUE, sizeof(value_string));
/* Copy each entry into value_string array */
for (e = tlv->enums; e; e = e->next)
{
value_string item = { e->code, e->name };
g_array_append_val(array, item);
}
/* Set enums to use with this TLV */
tlv->enum_vs = (value_string*)(void*)array->data;
}
add_tlv_reg_info(tlv);
}
}
/* add an entry for unknown TLVs */
add_tlv_reg_info(&wimaxasncp_tlv_not_found);
/* The following debug will only be printed if the debug_enabled variable
* is set programmatically. Setting the value via preferences will not
* work as it will be set too late to affect this code path.
*/
if (debug_enabled)
{
if (wimaxasncp_dict)
{
wimaxasncp_dict_tlv_t *tlv;
for (tlv = wimaxasncp_dict->tlvs; tlv; tlv = tlv->next)
{
printf(
"%s\n"
" type = %u\n"
" description = %s\n"
" decoder = %s\n"
" hf_root = %d\n"
" hf_value = %d\n"
" hf_ipv4 = %d\n"
" hf_ipv6 = %d\n"
" hf_bsid = %d\n"
" hf_protocol = %d\n"
" hf_port_low = %d\n"
" hf_port_high = %d\n"
" hf_ipv4_mask = %d\n"
" hf_ipv6_mask = %d\n"
" hf_vendor_id = %d\n"
" hf_vendor_rest_of_info = %d\n",
tlv->name,
tlv->type,
tlv->description,
val_to_str(
tlv->decoder, wimaxasncp_decode_type_vals, "Unknown"),
tlv->hf_root,
tlv->hf_value,
tlv->hf_ipv4,
tlv->hf_ipv6,
tlv->hf_bsid,
tlv->hf_protocol,
tlv->hf_port_low,
tlv->hf_port_high,
tlv->hf_ipv4_mask,
tlv->hf_ipv6_mask,
tlv->hf_vendor_id,
tlv->hf_vendor_rest_of_info);
}
}
}
/* Required function calls to register the header fields and subtrees
* used */
proto_register_field_array(
proto_wimaxasncp,
(hf_register_info*)(void *)wimaxasncp_build_dict.hf->data,
wimaxasncp_build_dict.hf->len);
proto_register_subtree_array(
(gint**)(void *)wimaxasncp_build_dict.ett->data,
wimaxasncp_build_dict.ett->len);
expert_wimaxasncp = expert_register_protocol(proto_wimaxasncp);
expert_register_field_array(expert_wimaxasncp, ei, array_length(ei));
}
/* ========================================================================= */
/* Register the protocol with Wireshark */
/* this format is require because a script is used to build the C function
that calls all the protocol registration.
*/
void
proto_register_wimaxasncp(void)
{
module_t *wimaxasncp_module;
/* ------------------------------------------------------------------------
* complete registration
* ------------------------------------------------------------------------
*/
/* Register the protocol name and description */
proto_wimaxasncp = proto_register_protocol(
"WiMAX ASN Control Plane Protocol",
"WiMAX ASN CP",
"wimaxasncp");
/* Register this dissector by name */
wimaxasncp_handle = register_dissector("wimaxasncp", dissect_wimaxasncp, proto_wimaxasncp);
/* Register preferences module (See Section 2.6 for more on
* preferences) */
wimaxasncp_module = prefs_register_protocol(
proto_wimaxasncp,
proto_reg_handoff_wimaxasncp);
/* Register preferences */
prefs_register_bool_preference(
wimaxasncp_module,
"show_transaction_id_d_bit",
"Show transaction ID direction bit",
"Show transaction ID direction bit separately from the rest of "
"the transaction ID field.",
&show_transaction_id_d_bit);
prefs_register_bool_preference(
wimaxasncp_module,
"debug_enabled",
"Enable debug output",
"Print debug output to the console.",
&debug_enabled);
prefs_register_uint_preference(
wimaxasncp_module,
"udp.wimax_port",
"UDP Port for WiMAX ASN Control Plane Protocol",
"Set UDP port for WiMAX ASN Control Plane Protocol",
10, &global_wimaxasncp_udp_port);
prefs_register_enum_preference(
wimaxasncp_module,
"nwg_version",
"NWG Version",
"Version of the NWG that the R6 protocol complies with",
&global_wimaxasncp_nwg_ver,
wimaxasncp_nwg_versions,
FALSE);
proto_register_prefix("wimaxasncp", register_wimaxasncp_fields);
}
/* ========================================================================= */
/* If this dissector uses sub-dissector registration add a registration
routine. This exact format is required because a script is used to find
these routines and create the code that calls these routines.
This function is also called by preferences whenever "Apply" is pressed
(see prefs_register_protocol above) so it should accommodate being called
more than once.
*/
void
proto_reg_handoff_wimaxasncp(void)
{
static gboolean inited = FALSE;
static int currentPort = -1;
if (!inited)
{
/* Find the EAP dissector */
eap_handle = find_dissector_add_dependency("eap", proto_wimaxasncp);
inited = TRUE;
}
if (currentPort != -1)
{
/* Remove any previous registered port */
dissector_delete_uint("udp.port", currentPort, wimaxasncp_handle);
}
/* Add the new one from preferences */
currentPort = global_wimaxasncp_udp_port;
dissector_add_uint("udp.port", currentPort, wimaxasncp_handle);
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/