epan/dissectors/packet-aruba-iap.c

   1 /* packet-aruba-iap.c
   2  * Routines for Aruba IAP header disassembly
   3  * Copyright 2014, Alexis La Goutte <alexis.lagoutte at gmail dot com>
   4  *
   5  * Wireshark - Network traffic analyzer
   6  * By Gerald Combs <gerald@wireshark.org>
   7  * Copyright 1998 Gerald Combs
   8  *
   9  * SPDX-License-Identifier: GPL-2.0-or-later
  10  */
  11
  12
  13 /*
  14  * Aruba Instant AP broadcast on L2 Layer with ethertype 0x8ffd
  15  * All frame start with 0xbeef (Magic number)
  16  * Octet 1 : Header (version)
  17  * Octet 2 : Type (only see type 3, 4, 5, 7 with IP Address...)
  18  * Octet 3 : Length
  19  * Octet 4 : Id
  20  *
  21  * Only for Type 3, 4, 5 and 7
  22  * Octet 5 : Status (Master / Slave..)
  23  * Octet 6-9 : timestamp
  24  * Octet 10-13 : The address IP(v4) of VC (Virtual Controller)
  25  * Octet 14 : Model
  26  * Octet 15-16 : Vlan ID (of Uplink)
  27  * Octet 17-20 : Unknown...
  28  */
  29 #include "config.h"
  30
  31 #include <epan/packet.h>
  32 #include <epan/addr_resolv.h>
  33
  34 #define ETHERTYPE_IAP   0x8ffd
  35 #define MAGIC_IAP       0xbeef
  36
  37 void proto_register_aruba_iap(void);
  38 void proto_reg_handoff_aruba_iap(void);
  39
  40 static dissector_handle_t iap_handle;
  41
  42 static int proto_aruba_iap;
  43 static int ett_aruba_iap;
  44
  45 static int hf_iap_magic;
  46 static int hf_iap_version;
  47 static int hf_iap_type;
  48 static int hf_iap_length;
  49 static int hf_iap_id;
  50 static int hf_iap_status;
  51 static int hf_iap_uptime;
  52 static int hf_iap_vc_ip;
  53 static int hf_iap_pvid;
  54 static int hf_iap_model;
  55 static int hf_iap_unknown_uint;
  56 static int hf_iap_unknown_bytes;
  57
  58 static const value_string iap_model[] = {
  59     { 0x0a, "Orion (IAP-104, IAP-105, IAP-175, RAP-3WN and RAP-3WNP)" },
  60     { 0x0f, "Cassiopeia (IAP-130 Series)" },
  61     { 0x17, "Aries (RAP-155 and RAP-155P)" },
  62     { 0x19, "Centaurus (IAP-224, IAP-225, IAP-214/215, IAP-274, IAP-275 and IAP-277)" },
  63     { 0x1a, "Pegasus (RAP-108, RAP-109, IAP-114, IAP-115 and IAP-103)" },
  64     { 0x1e, "Taurus (IAP-204/205, IAP-205H)" },
  65     { 0x28, "Hercules (IAP-314/315, IAP-324/325, IAP 318 and IAP 374/375/377)" },
  66     { 0x2b, "Lupus (IAP-334/335)" },
  67     { 0x2e, "Vela (IAP-203H, IAP-207, IAP-203R and IAP-203RP)" },
  68     { 0x30, "Ursa (IAP-303, IAP-304/305, IAP-365/367 and IAP-303H)" },
  69     { 0x37, "Draco (IAP-344/345)" },
  70     { 0x39, "Scorpio (IAP-514 and IAP-515)" },
  71     { 0x40, "Gemini (IAP-500 Series)" },
  72     { 0x47, "Norma (IAP-635)" },
  73     { 0, NULL }
  74 };
  75
  76 static int
  77 dissect_aruba_iap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
  78 {
  79     proto_tree *ti;
  80     proto_tree *aruba_iap_tree;
  81     uint16_t magic;
  82     uint8_t type;
  83     int offset = 0;
  84
  85     magic = tvb_get_ntohs(tvb, offset);
  86
  87     if(magic != MAGIC_IAP)
  88     {
  89         return 0;
  90     }
  91
  92     col_set_str(pinfo->cinfo, COL_PROTOCOL, "IAP");
  93     col_clear(pinfo->cinfo, COL_INFO);
  94
  95     ti = proto_tree_add_item(tree, proto_aruba_iap, tvb, 0, -1, ENC_NA);
  96     aruba_iap_tree = proto_item_add_subtree(ti, ett_aruba_iap);
  97
  98     proto_tree_add_item(aruba_iap_tree, hf_iap_magic, tvb, offset, 2, ENC_BIG_ENDIAN);
  99     offset += 2;
 100
 101     proto_tree_add_item(aruba_iap_tree, hf_iap_version, tvb, offset, 1, ENC_BIG_ENDIAN);
 102     offset += 1;
 103     col_set_str(pinfo->cinfo, COL_INFO, "Aruba Instant AP");
 104
 105     proto_tree_add_item(aruba_iap_tree, hf_iap_type, tvb, offset, 1, ENC_BIG_ENDIAN);
 106     type = tvb_get_uint8(tvb, offset);
 107     offset += 1;
 108
 109     proto_tree_add_item(aruba_iap_tree, hf_iap_length, tvb, offset, 1, ENC_BIG_ENDIAN);
 110     offset += 1;
 111
 112     proto_tree_add_item(aruba_iap_tree, hf_iap_id, tvb, offset, 1, ENC_BIG_ENDIAN);
 113     offset += 1;
 114
 115     if(type == 3 || type == 4 || type == 5 || type == 7){
 116
 117         proto_tree_add_item(aruba_iap_tree, hf_iap_status, tvb, offset, 1, ENC_BIG_ENDIAN);
 118         offset += 1;
 119
 120         proto_tree_add_item(aruba_iap_tree, hf_iap_uptime, tvb, offset, 4, ENC_BIG_ENDIAN);
 121         offset += 4;
 122
 123         proto_tree_add_item(aruba_iap_tree, hf_iap_vc_ip, tvb, offset, 4, ENC_BIG_ENDIAN);
 124         col_append_fstr(pinfo->cinfo, COL_INFO, " VC IP: %s", tvb_ip_to_str(pinfo->pool, tvb, offset));
 125         offset += 4;
 126
 127         proto_tree_add_item(aruba_iap_tree, hf_iap_model, tvb, offset, 1, ENC_BIG_ENDIAN);
 128         offset += 1;
 129
 130         proto_tree_add_item(aruba_iap_tree, hf_iap_pvid, tvb, offset, 2, ENC_BIG_ENDIAN);
 131         offset += 2;
 132
 133         proto_tree_add_item(aruba_iap_tree, hf_iap_unknown_uint, tvb, offset, 4, ENC_BIG_ENDIAN);
 134         offset += 4;
 135
 136         proto_tree_add_item(aruba_iap_tree, hf_iap_unknown_bytes, tvb, offset, -1, ENC_NA);
 137
 138     } else {
 139         proto_tree_add_item(aruba_iap_tree, hf_iap_unknown_bytes, tvb, offset, -1, ENC_NA);
 140     }
 141
 142     return tvb_reported_length(tvb);
 143 }
 144
 145 void
 146 proto_register_aruba_iap(void)
 147 {
 148     static hf_register_info hf[] = {
 149         { &hf_iap_magic,
 150         { "Magic", "aruba_iap.magic", FT_UINT16, BASE_HEX, NULL,0x0,
 151         "Magic Number of IAP traffic (Always 0x8ffd)", HFILL}},
 152
 153         { &hf_iap_version,
 154         { "Version", "aruba_iap.version", FT_UINT8, BASE_DEC, NULL, 0x0,
 155         NULL, HFILL}},
 156
 157         { &hf_iap_type,
 158         { "Type", "aruba_iap.type", FT_UINT8, BASE_DEC, NULL, 0x0,
 159         "Type of message", HFILL}},
 160
 161         { &hf_iap_length,
 162         { "Length", "aruba_iap.length", FT_UINT8, BASE_DEC, NULL, 0x0,
 163         NULL, HFILL}},
 164
 165         { &hf_iap_id,
 166         { "Id", "aruba_iap.id", FT_UINT8, BASE_DEC, NULL, 0x0,
 167         NULL, HFILL}},
 168
 169         { &hf_iap_status,
 170         { "Status", "aruba_iap.status", FT_UINT8, BASE_DEC, NULL, 0x0,
 171         NULL, HFILL}},
 172
 173         { &hf_iap_uptime,
 174         { "Uptime", "aruba_iap.uptime", FT_UINT32, BASE_DEC, NULL, 0x0,
 175         NULL, HFILL}},
 176
 177         { &hf_iap_vc_ip,
 178         { "VC IP", "aruba_iap.vc_ip", FT_IPv4, BASE_NONE, NULL, 0x0,
 179         "Address IP of Virtual Controller", HFILL}},
 180
 181         { &hf_iap_pvid,
 182         { "PVID (Port Vlan ID)", "aruba_iap.pvid", FT_UINT16, BASE_DEC, NULL, 0x0,
 183         "Vlan ID (of Uplink)", HFILL}},
 184
 185         { &hf_iap_model,
 186         { "Model", "aruba_iap.model", FT_UINT8, BASE_DEC_HEX, VALS(iap_model), 0x0,
 187         NULL, HFILL}},
 188
 189         { &hf_iap_unknown_bytes,
 190         { "Unknown", "aruba_iap.unknown.bytes", FT_BYTES, BASE_NONE, NULL, 0x0,
 191         "Unknown Data...", HFILL}},
 192
 193         { &hf_iap_unknown_uint,
 194         { "Unknown", "aruba_iap.unknown.uint", FT_UINT32, BASE_DEC_HEX, NULL, 0x0,
 195         "Unknown (UINT) Data...", HFILL}},
 196
 197
 198     };
 199
 200     static int *ett[] = {
 201         &ett_aruba_iap,
 202     };
 203
 204     proto_aruba_iap = proto_register_protocol("Aruba Instant AP Protocol",
 205                     "aruba_iap", "aruba_iap");
 206     proto_register_field_array(proto_aruba_iap, hf, array_length(hf));
 207     proto_register_subtree_array(ett, array_length(ett));
 208
 209     iap_handle = register_dissector("aruba_iap", dissect_aruba_iap, proto_aruba_iap);
 210 }
 211
 212
 213 void
 214 proto_reg_handoff_aruba_iap(void)
 215 {
 216     dissector_add_uint("ethertype", ETHERTYPE_IAP, iap_handle);
 217 }
 218
 219 /*
 220  * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
 221  *
 222  * Local variables:
 223  * c-basic-offset: 4
 224  * tab-width: 8
 225  * indent-tabs-mode: nil
 226  * End:
 227  *
 228  * vi: set shiftwidth=4 tabstop=8 expandtab:
 229  * :indentSize=4:tabSize=8:noTabs=true:
 230  */