/* packet-aruba-iap.c * Routines for Aruba IAP header disassembly * Copyright 2014, Alexis La Goutte * * Wireshark - Network traffic analyzer * By Gerald Combs * 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. */ /* * Aruba Instant AP broadcast on L2 Layer with ethertype 0x8ffd * All frame start with 0xbeef (Magic number) * Octet 1 : Header (version) * Octet 2 : Type (only see type 3, 4, 5, 7 with IP Address...) * Octet 3 : Length * Octet 4 : Id * * Only for Type 3, 4, 5 and 7 * Octet 5 : Status (Master / Slave..) * Octet 6-9 : timestamp * Octet 10-13 : The address IP(v4) of VC (Virtual Controller) * Octet 14 : Unknown * Octet 15-16 : Vlan ID (of Uplink) * Octet 17-20 : Unknown... */ #include "config.h" #include #include #define ETHERTYPE_IAP 0x8ffd #define MAGIC_IAP 0xbeef void proto_register_aruba_iap(void); void proto_reg_handoff_aruba_iap(void); static int proto_aruba_iap = -1; static gint ett_aruba_iap = -1; static int hf_iap_magic = -1; static int hf_iap_version = -1; static int hf_iap_type = -1; static int hf_iap_length = -1; static int hf_iap_id = -1; static int hf_iap_status = -1; static int hf_iap_uptime = -1; static int hf_iap_vc_ip = -1; static int hf_iap_pvid = -1; static int hf_iap_unknown_uint = -1; static int hf_iap_unknown_bytes = -1; static int dissect_aruba_iap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) { proto_tree *ti; proto_tree *aruba_iap_tree; guint16 magic; guint8 type; int offset = 0; magic = tvb_get_ntohs(tvb, offset); if(magic != MAGIC_IAP) { return 0; } col_set_str(pinfo->cinfo, COL_PROTOCOL, "IAP"); col_clear(pinfo->cinfo, COL_INFO); ti = proto_tree_add_item(tree, proto_aruba_iap, tvb, 0, -1, ENC_NA); aruba_iap_tree = proto_item_add_subtree(ti, ett_aruba_iap); proto_tree_add_item(aruba_iap_tree, hf_iap_magic, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(aruba_iap_tree, hf_iap_version, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; col_add_fstr(pinfo->cinfo, COL_INFO, "Aruba Instant AP"); proto_tree_add_item(aruba_iap_tree, hf_iap_type, tvb, offset, 1, ENC_BIG_ENDIAN); type = tvb_get_guint8(tvb, offset); offset += 1; proto_tree_add_item(aruba_iap_tree, hf_iap_length, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(aruba_iap_tree, hf_iap_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; if(type == 3 || type == 4 || type == 5 || type == 7){ proto_tree_add_item(aruba_iap_tree, hf_iap_status, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(aruba_iap_tree, hf_iap_uptime, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; proto_tree_add_item(aruba_iap_tree, hf_iap_vc_ip, tvb, offset, 4, ENC_BIG_ENDIAN); col_append_fstr(pinfo->cinfo, COL_INFO, " VC IP: %s", tvb_ip_to_str(tvb, offset)); offset += 4; proto_tree_add_item(aruba_iap_tree, hf_iap_unknown_uint, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(aruba_iap_tree, hf_iap_pvid, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(aruba_iap_tree, hf_iap_unknown_uint, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; proto_tree_add_item(aruba_iap_tree, hf_iap_unknown_bytes, tvb, offset, -1, ENC_NA); } else { proto_tree_add_item(aruba_iap_tree, hf_iap_unknown_bytes, tvb, offset, -1, ENC_NA); } return tvb_reported_length(tvb); } void proto_register_aruba_iap(void) { static hf_register_info hf[] = { { &hf_iap_magic, { "Magic", "aruba_iap.magic", FT_UINT16, BASE_HEX, NULL,0x0, "Magic Number of IAP trafic (Always 0x8ffd)", HFILL}}, { &hf_iap_version, { "Version", "aruba_iap.version", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}}, { &hf_iap_type, { "Type", "aruba_iap.type", FT_UINT8, BASE_DEC, NULL, 0x0, "Type of message", HFILL}}, { &hf_iap_length, { "Length", "aruba_iap.length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}}, { &hf_iap_id, { "Id", "aruba_iap.id", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}}, { &hf_iap_status, { "Status", "aruba_iap.status", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}}, { &hf_iap_uptime, { "Uptime", "aruba_iap.uptime", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL}}, { &hf_iap_vc_ip, { "VC IP", "aruba_iap.vc_ip", FT_IPv4, BASE_NONE, NULL, 0x0, "Address IP of Virtual Controller", HFILL}}, { &hf_iap_pvid, { "PVID (Port Vlan ID)", "aruba_iap.pvid", FT_UINT16, BASE_DEC, NULL, 0x0, "Vlan ID (of Uplink)", HFILL}}, { &hf_iap_unknown_bytes, { "Unknown", "aruba_iap.unknown.bytes", FT_BYTES, BASE_NONE, NULL, 0x0, "Unknown Data...", HFILL}}, { &hf_iap_unknown_uint, { "Unknown", "aruba_iap.unknown.uint", FT_UINT32, BASE_DEC_HEX, NULL, 0x0, "Unknown (UINT) Data...", HFILL}}, }; static gint *ett[] = { &ett_aruba_iap, }; proto_aruba_iap = proto_register_protocol("Aruba Instant AP Protocol", "aruba_iap", "aruba_iap"); proto_register_field_array(proto_aruba_iap, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); } void proto_reg_handoff_aruba_iap(void) { dissector_handle_t iap_handle; iap_handle = create_dissector_handle(dissect_aruba_iap, proto_aruba_iap); dissector_add_uint("ethertype", ETHERTYPE_IAP, iap_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: */