diff options
Diffstat (limited to 'plugins/epan/wimax/mac_mgmt_msg_decoder.c')
| -rw-r--r-- | plugins/epan/wimax/mac_mgmt_msg_decoder.c | 379 |
1 files changed, 379 insertions, 0 deletions
diff --git a/plugins/epan/wimax/mac_mgmt_msg_decoder.c b/plugins/epan/wimax/mac_mgmt_msg_decoder.c new file mode 100644 index 0000000000..2eed2e5c36 --- /dev/null +++ b/plugins/epan/wimax/mac_mgmt_msg_decoder.c @@ -0,0 +1,379 @@ +/* mac_mgmt_msg_decoder.c + * WiMax MAC Management Message decoder + * + * Copyright (c) 2007 by Intel Corporation. + * + * Author: Lu Pan <lu.pan@intel.com> + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1999 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 files */ + +#include "config.h" + +#include <epan/packet.h> +#include <epan/expert.h> +#include "wimax_mac.h" + +void proto_register_mac_mgmt_msg(void); +void proto_reg_handoff_mac_mgmt_msg(void); + +static gint proto_mac_mgmt_msg_decoder = -1; +static gint ett_mac_mgmt_msg_decoder = -1; + +static gint hf_mac_mgmt_msg_type = -1; +static gint hf_mac_mgmt_msg_values = -1; + +static expert_field ei_empty_payload = EI_INIT; + +static dissector_table_t subdissector_message_table; + +/* WIMAX MAC Management message type info */ +static const value_string mgt_msg_abbrv_vals[] = { + { MAC_MGMT_MSG_UCD, "UCD" }, + { MAC_MGMT_MSG_DCD, "DCD" }, + { MAC_MGMT_MSG_DL_MAP, "DL-MAP" }, + { MAC_MGMT_MSG_UL_MAP, "UL-MAP" }, + { MAC_MGMT_MSG_RNG_REQ, "RNG-REQ" }, + { MAC_MGMT_MSG_RNG_RSP, "RNG-RSP" }, + { MAC_MGMT_MSG_REG_REQ, "REG-REQ" }, + { MAC_MGMT_MSG_REG_RSP, "REG-RSP" }, + { 8, "Reserved8" }, + { MAC_MGMT_MSG_PKM_REQ, "PKM-REQ" }, + { MAC_MGMT_MSG_PKM_RSP, "PKM-RSP" }, + { MAC_MGMT_MSG_DSA_REQ, "DSA-REQ" }, + { MAC_MGMT_MSG_DSA_RSP, "DSA-RSP" }, + { MAC_MGMT_MSG_DSA_ACK, "DSA-ACK" }, + { MAC_MGMT_MSG_DSC_REQ, "DSC-REQ" }, + { MAC_MGMT_MSG_DSC_RSP, "DSC-RSP" }, + { MAC_MGMT_MSG_DSC_ACK, "DSC-ACK" }, + { MAC_MGMT_MSG_DSD_REQ, "DSD-REQ" }, + { MAC_MGMT_MSG_DSD_RSP, "DSD-RSP" }, + { 19, "Reserved19" }, + { 20, "Reserved20" }, + { MAC_MGMT_MSG_MCA_REQ, "MCA-REQ" }, + { MAC_MGMT_MSG_MCA_RSP, "MCA-RSP" }, + { MAC_MGMT_MSG_DBPC_REQ, "DBPC-REQ" }, + { MAC_MGMT_MSG_DBPC_RSP, "DBPC-RSP" }, + { MAC_MGMT_MSG_RES_CMD, "RES-CMD" }, + { MAC_MGMT_MSG_SBC_REQ, "SBC-REQ" }, + { MAC_MGMT_MSG_SBC_RSP, "SBC-RSP" }, + { MAC_MGMT_MSG_CLK_CMP, "CLK-CMP" }, + { MAC_MGMT_MSG_DREG_CMD, "DREG-CMD" }, + { MAC_MGMT_MSG_DSX_RVD, "DSX-RVD" }, + { MAC_MGMT_MSG_TFTP_CPLT, "TFTP-CPLT" }, + { MAC_MGMT_MSG_TFTP_RSP, "TFTP-RSP" }, + { MAC_MGMT_MSG_ARQ_FEEDBACK, "ARQ-FEEDBACK" }, + { MAC_MGMT_MSG_ARQ_DISCARD, "ARQ-DISCARD" }, + { MAC_MGMT_MSG_ARQ_RESET, "ARQ-RESET" }, + { MAC_MGMT_MSG_REP_REQ, "REP-REQ" }, + { MAC_MGMT_MSG_REP_RSP, "REP-RSP" }, + { MAC_MGMT_MSG_FPC, "FPC" }, + { MAC_MGMT_MSG_MSH_NCFG, "MSH-NCFG" }, + { MAC_MGMT_MSG_MSH_NENT, "MSH-NENT" }, + { MAC_MGMT_MSG_MSH_DSCH, "MSH-DSCH" }, + { MAC_MGMT_MSG_MSH_CSCH, "MSH-CSCH" }, + { MAC_MGMT_MSG_MSH_CSCF, "MSH-CSCF" }, + { MAC_MGMT_MSG_AAS_FBCK_REQ, "AAS-FBCK_REQ" }, + { MAC_MGMT_MSG_AAS_FBCK_RSP, "AAS-FBCK_RSP" }, + { MAC_MGMT_MSG_AAS_BEAM_SELECT, "AAS-BEAM_SELECT" }, + { MAC_MGMT_MSG_AAS_BEAM_REQ, "AAS-BEAM_REQ" }, + { MAC_MGMT_MSG_AAS_BEAM_RSP, "AAS-BEAM_RSP" }, + { MAC_MGMT_MSG_DREG_REQ, "DREG-REQ" }, + { MAC_MGMT_MSG_MOB_SLP_REQ, "MOB-SLP-REQ" }, + { MAC_MGMT_MSG_MOB_SLP_RSP, "MOB-SLP-RSP" }, + { MAC_MGMT_MSG_MOB_TRF_IND, "MOB-TRF-IND" }, + { MAC_MGMT_MSG_MOB_NBR_ADV, "MOB-NBR-ADV" }, + { MAC_MGMT_MSG_MOB_SCN_REQ, "MOB-SCN-REQ" }, + { MAC_MGMT_MSG_MOB_SCN_RSP, "MOB-SCN-RSP" }, + { MAC_MGMT_MSG_MOB_BSHO_REQ, "MOB-BSHO-REQ" }, + { MAC_MGMT_MSG_MOB_MSHO_REQ, "MOB-MSHO-REQ" }, + { MAC_MGMT_MSG_MOB_BSHO_RSP, "MOB-BSHO-RSP" }, + { MAC_MGMT_MSG_MOB_HO_IND, "MOB-HO-IND" }, + { MAC_MGMT_MSG_MOB_SCN_REP, "MOB-SCN-REP" }, + { MAC_MGMT_MSG_MOB_PAG_ADV, "MOB-PAG-ADV" }, + { MAC_MGMT_MSG_MBS_MAP, "MBS-MAP" }, + { MAC_MGMT_MSG_PMC_REQ, "PMC-REQ" }, + { MAC_MGMT_MSG_PMC_RSP, "PMC-RSP" }, + { MAC_MGMT_MSG_PRC_LT_CTRL, "PRC-LT-CTRL" }, + { MAC_MGMT_MSG_MOB_ASC_REP, "MOB-ASC-REP" }, + + { 0, NULL } +}; + +static value_string_ext mgt_msg_abbrv_vals_ext = VALUE_STRING_EXT_INIT(mgt_msg_abbrv_vals); + +static int dissect_mac_mgmt_msg_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) +{ + guint offset = 0; + guint message_type; + proto_item *message_item; + proto_tree *message_tree; + const char* mgt_msg_str; + + message_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_decoder, tvb, offset, -1, + "MAC Management Message Type (%u bytes)", tvb_reported_length(tvb)); + message_tree = proto_item_add_subtree(message_item, ett_mac_mgmt_msg_decoder); + + if (tvb_reported_length(tvb) == 0) + { + expert_add_info(pinfo, message_item, &ei_empty_payload); + return tvb_captured_length(tvb); + } + + /* Get the payload type */ + message_type = tvb_get_guint8(tvb, offset); + proto_tree_add_item(message_tree, hf_mac_mgmt_msg_type, tvb, offset, 1, ENC_NA); + mgt_msg_str = val_to_str_ext_const(message_type, &mgt_msg_abbrv_vals_ext, "Unknown"); + + /* Display message type in Info column */ + col_append_sep_str(pinfo->cinfo, COL_INFO, ", ", mgt_msg_str); + + /* add the payload type into the info column */ + if (try_val_to_str_ext(message_type, &mgt_msg_abbrv_vals_ext) == NULL) + { + /* display the MAC payload in Hex */ + proto_tree_add_item(message_tree, hf_mac_mgmt_msg_values, tvb, offset, -1, ENC_NA); + return 1; + } + + /* add the MAC header info to parent*/ + proto_item_append_text(proto_tree_get_parent(tree), ", %s", mgt_msg_str); + + /* Decode and display the MAC payload */ + if (!dissector_try_uint(subdissector_message_table, message_type, + tvb_new_subset_remaining(tvb, 1), pinfo, tree)) + { + proto_tree_add_item(message_tree, hf_mac_mgmt_msg_values, tvb, offset, -1, ENC_NA); + } + return tvb_captured_length(tvb); +} + +/* Register Wimax Mac Payload Protocol and Dissector */ +void proto_register_mac_mgmt_msg(void) +{ + /* Payload display */ + static hf_register_info hf[] = + { + { + &hf_mac_mgmt_msg_type, + { + "MAC Management Message Type", "wmx.macmgtmsgtype", + FT_UINT8, BASE_DEC | BASE_EXT_STRING, &mgt_msg_abbrv_vals_ext, 0x0, + NULL, HFILL + } + }, + { + &hf_mac_mgmt_msg_values, + { + "Values", "wmx.values", + FT_BYTES, BASE_NONE, NULL, 0x0, + NULL, HFILL + } + }, + }; + + /* Setup protocol subtree array */ + static gint *ett[] = + { + &ett_mac_mgmt_msg_decoder, + }; + + static ei_register_info ei[] = { + { &ei_empty_payload, { "wmx.empty_payload", PI_PROTOCOL, PI_ERROR, "Error: Mac payload tvb is empty !", EXPFILL }}, + }; + + expert_module_t* expert_mac_mgmt; + + proto_mac_mgmt_msg_decoder = proto_register_protocol ( + "WiMax MAC Management Message", /* name */ + "MGMT MSG", /* short name */ + "wmx.mgmt" /* abbrev */ + ); + + proto_register_field_array(proto_mac_mgmt_msg_decoder, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + expert_mac_mgmt = expert_register_protocol(proto_mac_mgmt_msg_decoder); + expert_register_field_array(expert_mac_mgmt, ei, array_length(ei)); + + subdissector_message_table = register_dissector_table("wmx.mgmtmsg", + "WiMax MAC Management Message", proto_mac_mgmt_msg_decoder, FT_UINT8, BASE_DEC); + + /* Register dissector by name */ + register_dissector("wmx_mac_mgmt_msg_decoder", dissect_mac_mgmt_msg_decoder, + proto_mac_mgmt_msg_decoder); +} + +void proto_reg_handoff_mac_mgmt_msg(void) +{ + dissector_handle_t mgt_msg_handle; + + /* Find the dissectors that appear to be supported through a third-party plugin + Keep here until third-party plugin can register through the new "wmx.mgmtmsg" + subdissector */ + + /* find the Multicast Assignment request message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_mca_req_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_MCA_REQ, mgt_msg_handle ); + + /* find the Multicast Assignment response message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_mca_rsp_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_MCA_RSP, mgt_msg_handle ); + + /* find the DL Burst Profile Change request message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_dbpc_req_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_DBPC_REQ, mgt_msg_handle ); + + /* find the DL Burst Profile Change response message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_dbpc_rsp_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_DBPC_RSP, mgt_msg_handle ); + + /* find the Config File TFTP Complete message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_tftp_cplt_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_TFTP_CPLT, mgt_msg_handle ); + + /* find the Config File TFTP Complete response message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_tftp_rsp_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_TFTP_RSP, mgt_msg_handle ); + + /* find the Mesh Network Configuration message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_ncfg_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_MSH_NCFG, mgt_msg_handle ); + + /* find the Mesh Network Entry message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_nent_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_MSH_NENT, mgt_msg_handle ); + + /* find the Mesh Distributed Schedule message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_dsch_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_MSH_DSCH, mgt_msg_handle ); + + /* find the Mesh Centralized Schedule message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_csch_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_MSH_CSCH, mgt_msg_handle ); + + /* find the Mesh Centralized Schedule Configuration message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_cscf_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_MSH_CSCF, mgt_msg_handle ); + + /* find the AAS Beam request message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_aas_beam_req_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_AAS_BEAM_REQ, mgt_msg_handle ); + + /* find the AAS Beam response message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_aas_beam_rsp_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_AAS_BEAM_RSP, mgt_msg_handle ); + + /* find the Sleep Request message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_mob_slp_req_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_MOB_SLP_REQ, mgt_msg_handle ); + + /* find the Sleep Response message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_mob_slp_rsp_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_MOB_SLP_RSP, mgt_msg_handle ); + + /* find the Traffic Indication message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_mob_trf_ind_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_MOB_TRF_IND, mgt_msg_handle ); + + /* find the Neighbor Advertisement message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_mob_nbr_adv_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_MOB_NBR_ADV, mgt_msg_handle ); + + /* find the Scanning Interval Allocation Request message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_mob_scn_req_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_MOB_SCN_REQ, mgt_msg_handle ); + + /* find the Scanning Interval Allocation Response message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_mob_scn_rsp_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_MOB_SCN_RSP, mgt_msg_handle ); + + /* find the BS HO Request message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_mob_bsho_req_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_MOB_BSHO_REQ, mgt_msg_handle ); + + /* find the MS HO Request message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_mob_msho_req_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_MOB_MSHO_REQ, mgt_msg_handle ); + + /* find the BS HO Response message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_mob_bsho_rsp_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_MOB_BSHO_RSP, mgt_msg_handle ); + + /* find the HO Indication message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_mob_ho_ind_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_MOB_HO_IND, mgt_msg_handle ); + + /* find the Scanning Result Report message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_mob_scn_rep_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_MOB_SCN_REP, mgt_msg_handle ); + + /* find the BS Broadcast Paging message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_mob_pag_adv_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_MOB_PAG_ADV, mgt_msg_handle ); + + /* find the MBS MAP message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_mbs_map_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_MBS_MAP, mgt_msg_handle ); + + /* find the Association Result Report message handler */ + mgt_msg_handle = find_dissector("mac_mgmt_msg_mob_asc_rep_handler"); + if (mgt_msg_handle) + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_MOB_ASC_REP, mgt_msg_handle ); +} + +/* + * Editor modelines - http://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: + */ |