epan/dissectors/packet-iuup.c

   1 /* packet-iuup.c
   2  * IuUP Protocol 3GPP TS 25.415 V6.2.0 (2005-03)
   3  *
   4  * (c) 2005 Luis E. Garcia Ontanon <luis@ontanon.org>
   5  *
   6  * $Id$
   7  *
   8  * Wireshark - Network traffic analyzer
   9  * By Gerald Combs <gerald@wireshark.org>
  10  * Copyright 1998 Gerald Combs
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  25  */
  26
  27
  28 /*
  29    Patch by Polystar (Peter Vestman, Petter Edblom):
  30         Corrected rfci handling in rate control messages
  31         Added crc6 and crc10 checks for header and payload
  32 */
  33
  34 #ifdef HAVE_CONFIG_H
  35 #include "config.h"
  36 #endif
  37
  38 #include <glib.h>
  39 #include <epan/epan.h>
  40 #include <epan/packet.h>
  41 #include <epan/proto.h>
  42 #include <epan/tvbuff.h>
  43 #include <epan/prefs.h>
  44 #include <epan/emem.h>
  45 #include <epan/expert.h>
  46 #include <epan/crc10.h>
  47 #include <epan/crc6.h>
  48
  49
  50 typedef struct _iuup_rfci_t {
  51     guint id;
  52     guint sum_len;
  53     guint num_of_subflows;
  54     struct {
  55         guint len;
  56     } subflow[8];
  57     struct _iuup_rfci_t* next;
  58 } iuup_rfci_t;
  59
  60 typedef struct {
  61     guint32 id;
  62     guint num_of_subflows;
  63     iuup_rfci_t* rfcis;
  64     iuup_rfci_t* last_rfci;
  65 } iuup_circuit_t;
  66
  67 static int proto_iuup = -1;
  68
  69 static int hf_iuup_direction = -1;
  70 static int hf_iuup_circuit_id = -1;
  71
  72 static int hf_iuup_pdu_type = -1;
  73 static int hf_iuup_frame_number = -1;
  74 static int hf_iuup_fqc = -1;
  75 static int hf_iuup_rfci = -1;
  76 static int hf_iuup_hdr_crc = -1;
  77 static int hf_iuup_hdr_crc_error = -1;
  78 static int hf_iuup_payload_crc = -1;
  79 static int hf_iuup_payload_crc_error = -1;
  80
  81 static int hf_iuup_ack_nack = -1;
  82 static int hf_iuup_frame_number_t14 = -1;
  83 static int hf_iuup_mode_version = -1;
  84 static int hf_iuup_procedure_indicator = -1;
  85 static int hf_iuup_error_cause_val = -1;
  86
  87 static int hf_iuup_init_ti = -1;
  88 static int hf_iuup_init_subflows_per_rfci = -1;
  89 static int hf_iuup_init_chain_ind = -1;
  90
  91 static int hf_iuup_error_distance = -1;
  92 static int hf_iuup_errorevt_cause_val = -1;
  93
  94 static int hf_iuup_time_align = -1;
  95 static int hf_iuup_spare_bytes = -1;
  96 static int hf_iuup_spare_03 = -1;
  97 static int hf_iuup_spare_0f = -1;
  98 static int hf_iuup_spare_c0 = -1;
  99 static int hf_iuup_spare_e0 = -1;
 100 static int hf_iuup_spare_ff = -1;
 101
 102 static int hf_iuup_delay = -1;
 103 static int hf_iuup_advance = -1;
 104 static int hf_iuup_delta = -1;
 105
 106 static int hf_iuup_mode_versions = -1;
 107 static int hf_iuup_mode_versions_a[] = {-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1};
 108
 109
 110 static int hf_iuup_data_pdu_type = -1;
 111
 112 static int hf_iuup_num_rfci_ind = -1;
 113
 114 static int hf_iuup_payload = -1;
 115
 116 static int hf_iuup_init_rfci_ind = -1;
 117 static int hf_iuup_init_rfci[] = {-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1};
 118
 119 static int hf_iuup_init_rfci_flow_len[64][8] = {
 120     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
 121     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
 122     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
 123     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
 124     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
 125     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
 126     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
 127     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1}
 128 };
 129
 130 static int hf_iuup_init_rfci_li[] = {-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1};
 131 static int hf_iuup_init_rfci_lri[] = {-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1};
 132 static int hf_iuup_init_ipti[] = {-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1};
 133
 134 static int hf_iuup_rfci_subflow[64][8] = {
 135     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
 136     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
 137     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
 138     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
 139     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
 140     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
 141     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
 142     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1}
 143 };
 144
 145 static int hf_iuup_rfci_ratectl[] = {-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1};
 146
 147
 148 static gint ett_iuup = -1;
 149 static gint ett_rfci = -1;
 150 static gint ett_ipti = -1;
 151 static gint ett_support = -1;
 152 static gint ett_time = -1;
 153 static gint ett_rfciinds = -1;
 154 static gint ett_payload = -1;
 155 static gint ett_payload_subflows = -1;
 156
 157 static GHashTable* circuits = NULL;
 158
 159 static dissector_handle_t data_handle = NULL;
 160 static gboolean dissect_fields = FALSE;
 161 static gboolean two_byte_pseudoheader = FALSE;
 162 static guint global_dynamic_payload_type = 0;
 163
 164
 165 #define PDUTYPE_DATA_WITH_CRC 0
 166 #define PDUTYPE_DATA_NO_CRC 1
 167 #define PDUTYPE_DATA_CONTROL_PROC 14
 168
 169 static const value_string iuup_pdu_types[] = {
 170     {PDUTYPE_DATA_WITH_CRC,"Data with CRC"},
 171     {PDUTYPE_DATA_NO_CRC,"Data without CRC"},
 172     {PDUTYPE_DATA_CONTROL_PROC,"Control Procedure"},
 173     {0,NULL}
 174 };
 175
 176 static const value_string iuup_colinfo_pdu_types[] = {
 177     {PDUTYPE_DATA_WITH_CRC,"Data (CRC)"},
 178     {PDUTYPE_DATA_NO_CRC,"Data (no CRC)"},
 179     {PDUTYPE_DATA_CONTROL_PROC,""},
 180     {0,NULL}
 181 };
 182
 183 #define ACKNACK_ACK 0x4
 184 #define ACKNACK_NACK 0x8
 185 #define ACKNACK_RESERVED 0xc
 186 #define ACKNACK_PROC 0x0
 187
 188 static const value_string iuup_acknack_vals[] = {
 189     {ACKNACK_PROC >> 2,"Procedure"},
 190     {ACKNACK_ACK >> 2,"ACK"},
 191     {ACKNACK_NACK  >> 2,"NACK"},
 192     {ACKNACK_RESERVED  >> 2,"Reserved"},
 193     {0,NULL}
 194 };
 195
 196 static const value_string iuup_colinfo_acknack_vals[] = {
 197     {ACKNACK_PROC,""},
 198     {ACKNACK_ACK,"ACK "},
 199     {ACKNACK_NACK,"NACK "},
 200     {ACKNACK_RESERVED,"Reserved "},
 201     {0,NULL}
 202 };
 203
 204 #define PROC_INIT 0
 205 #define PROC_RATE 1
 206 #define PROC_TIME 2
 207 #define PROC_ERROR 3
 208
 209 static const value_string iuup_procedures[] = {
 210     {PROC_INIT,"Initialization"},
 211     {PROC_RATE,"Rate Control"},
 212     {PROC_TIME,"Time Alignment"},
 213     {PROC_ERROR,"Error Event"},
 214     {4,"Reserved(4)"},
 215     {5,"Reserved(5)"},
 216     {6,"Reserved(6)"},
 217     {7,"Reserved(7)"},
 218     {8,"Reserved(8)"},
 219     {9,"Reserved(9)"},
 220     {10,"Reserved(10)"},
 221     {11,"Reserved(11)"},
 222     {12,"Reserved(12)"},
 223     {13,"Reserved(13)"},
 224     {14,"Reserved(14)"},
 225     {15,"Reserved(15)"},
 226     {0,NULL}
 227 };
 228
 229 static const value_string iuup_colinfo_procedures[] = {
 230     {PROC_INIT,"Initialization "},
 231     {PROC_RATE,"Rate Control "},
 232     {PROC_TIME,"Time Alignment "},
 233     {PROC_ERROR,"Error Event "},
 234     {0,NULL}
 235 };
 236
 237
 238 static const value_string iuup_error_distances[] = {
 239     {0, "Reporting local error"},
 240     {1, "First forwarding of error event report"},
 241     {2, "Second forwarding of error event report"},
 242     {3, "Reserved"},
 243     {0,NULL}
 244 };
 245
 246 static const value_string iuup_error_causes[] = {
 247     {0, "CRC error of frame header"},
 248     {1, "CRC error of frame payload"},
 249     {2, "Unexpected frame number"},
 250     {3, "Frame loss"},
 251     {4, "PDU type unknown"},
 252     {5, "Unknown procedure"},
 253     {6, "Unknown reserved value"},
 254     {7, "Unknown field"},
 255     {8, "Frame too short"},
 256     {9, "Missing fields"},
 257     {16, "Unexpected PDU type"},
 258     {18, "Unexpected procedure"},
 259     {19, "Unexpected RFCI"},
 260     {20, "Unexpected value"},
 261     {42, "Initialisation failure"},
 262     {43, "Initialisation failure (network error, timer expiry)"},
 263     {44, "Initialisation failure (Iu UP function error, repeated NACK)"},
 264     {45, "Rate control failure"},
 265     {46, "Error event failure"},
 266     {47, "Time Alignment not supported"},
 267     {48, "Requested Time Alignment not possible"},
 268     {49, "Iu UP Mode version not supported"},
 269     {0,NULL}
 270 };
 271
 272 static const value_string iuup_rfci_indicator[] = {
 273     {0, "RFCI allowed"},
 274     {1, "RFCI barred"},
 275     {0,NULL}
 276 };
 277
 278
 279 static const value_string iuup_ti_vals[] = {
 280     {0, "IPTIs not present"},
 281     {1, "IPTIs present in frame"},
 282     {0,NULL}
 283 };
 284
 285 static const value_string iuup_mode_version_support[] = {
 286     {0, "not supported"},
 287     {1, "supported"},
 288     {0,NULL}
 289 };
 290
 291 static const value_string iuup_init_rfci_li_vals[] = {
 292     {0, "one octet used"},
 293     {1, "two octets used"},
 294     {0,NULL}
 295 };
 296
 297 static const value_string iuup_init_chain_ind_vals[] = {
 298     {0, "this frame is the last frame for the procedure"},
 299     {1, "additional frames will be sent for the procedure"},
 300     {0,NULL}
 301 };
 302
 303 static const value_string iuup_init_lri_vals[] = {
 304     {0, "Not last RFCI"},
 305     {1, "Last RFCI in current frame"},
 306     {0,NULL}
 307 };
 308
 309 static const value_string iuup_payload_pdu_type[] = {
 310     {0, "PDU type 0"},
 311     {1, "PDU type 1"},
 312     {0,NULL}
 313 };
 314
 315 static const value_string iuup_fqcs[] = {
 316     {0, "Frame Good"},
 317     {1, "Frame BAD"},
 318     {2, "Frame bad due to radio"},
 319     {3, "spare"},
 320     {0,NULL}
 321 };
 322
 323
 324 static proto_item*
 325 iuup_proto_tree_add_bits(proto_tree* tree, int hf, tvbuff_t* tvb, int offset, int bit_offset, guint bits, guint8** buf) {
 326     static const guint8 masks[] = {0x00,0x80,0xc0,0xe0,0xf0,0xf8,0xfc,0xfe};
 327     int len = (bits + bit_offset)/8 + ((bits + bit_offset)%8 ? 0 : 1);
 328     guint8* shifted_buffer;
 329     proto_item* pi;
 330     int i;
 331
 332     DISSECTOR_ASSERT(bit_offset < 8);
 333
 334     shifted_buffer = ep_tvb_memdup(tvb,offset,len+1);
 335
 336     for(i = 0; i < len; i++) {
 337         shifted_buffer[i] <<= bit_offset;
 338         shifted_buffer[i] |= (shifted_buffer[i+1] & masks[bit_offset]) >> (8 - bit_offset);
 339     }
 340
 341     shifted_buffer[len] <<=  bit_offset;
 342     shifted_buffer[len] &= masks[(bits + bit_offset)%8];
 343
 344     if (buf)
 345         *buf = shifted_buffer;
 346
 347     pi = proto_tree_add_bytes(tree, hf, tvb, offset, len + ((bits + bit_offset) % 8 ? 1 : 0) , shifted_buffer);
 348     proto_item_append_text(pi, " (%i Bits)", bits);
 349
 350     return pi;
 351 }
 352
 353 static void dissect_iuup_payload(tvbuff_t* tvb, packet_info* pinfo _U_, proto_tree* tree, guint rfci_id _U_, int offset) {
 354     iuup_circuit_t* iuup_circuit;
 355     iuup_rfci_t *rfci;
 356     int last_offset = tvb_length(tvb) - 1;
 357     guint bit_offset = 0;
 358     proto_item* pi;
 359
 360     pi = proto_tree_add_item(tree,hf_iuup_payload,tvb,offset,-1,FALSE);
 361
 362     if ( ! dissect_fields ) {
 363         return;
 364     } else if ( ! pinfo->circuit_id
 365                 || ! ( iuup_circuit  = g_hash_table_lookup(circuits,GUINT_TO_POINTER(pinfo->circuit_id)) ) ) {
 366         proto_item_set_expert_flags(pi, PI_UNDECODED, PI_WARN);
 367         return;
 368     }
 369
 370     for(rfci = iuup_circuit->rfcis; rfci; rfci = rfci->next)
 371         if ( rfci->id == rfci_id )
 372             break;
 373
 374     if (!rfci) {
 375         proto_item_set_expert_flags(pi, PI_UNDECODED, PI_WARN);
 376         return;
 377     }
 378
 379     tree = proto_item_add_subtree(pi,ett_payload);
 380
 381
 382     do {
 383         guint i;
 384         guint subflows = rfci->num_of_subflows;
 385         proto_tree* flow_tree;
 386
 387         pi = proto_tree_add_text(tree,tvb,offset,-1,"Payload Frame");
 388         flow_tree = proto_item_add_subtree(pi,ett_payload_subflows);
 389
 390         bit_offset = 0;
 391
 392         for(i = 0; i < subflows; i++) {
 393
 394             if (! rfci->subflow[i].len)
 395                 continue;
 396
 397             iuup_proto_tree_add_bits(flow_tree, hf_iuup_rfci_subflow[rfci->id][i], tvb,
 398                                 offset + (bit_offset/8),
 399                                 bit_offset % 8,
 400                                 rfci->subflow[i].len,
 401                                 NULL);
 402
 403             bit_offset += rfci->subflow[i].len;
 404         }
 405
 406         offset += (bit_offset / 8) + (bit_offset % 8 ? 1 : 0);
 407
 408     } while (offset <= last_offset);
 409 }
 410
 411 static guint dissect_rfcis(tvbuff_t* tvb, packet_info* pinfo _U_, proto_tree* tree, int* offset, iuup_circuit_t* iuup_circuit) {
 412     proto_item* pi;
 413     proto_tree* pt;
 414     guint8 oct;
 415     guint c = 0;
 416     guint i;
 417
 418     do {
 419         iuup_rfci_t *rfci = se_alloc0(sizeof(iuup_rfci_t));
 420         guint len = 0;
 421
 422         DISSECTOR_ASSERT(c < 64);
 423
 424         pi = proto_tree_add_item(tree,hf_iuup_init_rfci_ind,tvb,*offset,-1,FALSE);
 425         pt = proto_item_add_subtree(pi,ett_rfci);
 426
 427         proto_tree_add_item(pt,hf_iuup_init_rfci_lri[c],tvb,*offset,1,FALSE);
 428         proto_tree_add_item(pt,hf_iuup_init_rfci_li[c],tvb,*offset,1,FALSE);
 429         proto_tree_add_item(pt,hf_iuup_init_rfci[c],tvb,*offset,1,FALSE);
 430
 431         oct = tvb_get_guint8(tvb,*offset);
 432         rfci->id = oct & 0x3f;
 433         rfci->num_of_subflows = iuup_circuit->num_of_subflows;
 434
 435         len = (oct & 0x40) ? 2 : 1;
 436         proto_item_set_text(pi,"RFCI %i Initialization",rfci->id);
 437         proto_item_set_len(pi,(len*iuup_circuit->num_of_subflows)+1);
 438
 439         (*offset)++;
 440
 441         for(i = 0; i < iuup_circuit->num_of_subflows; i++) {
 442             guint subflow_len;
 443
 444             if (len == 2) {
 445                 subflow_len = tvb_get_ntohs(tvb,*offset);
 446             } else {
 447                 subflow_len = tvb_get_guint8(tvb,*offset);
 448             }
 449
 450             rfci->subflow[i].len = subflow_len;
 451             rfci->sum_len += subflow_len;
 452
 453             proto_tree_add_uint(pt,hf_iuup_init_rfci_flow_len[c][i],tvb,*offset,len,subflow_len);
 454
 455             (*offset) += len;
 456         }
 457
 458
 459         if (iuup_circuit->last_rfci) {
 460             iuup_circuit->last_rfci = iuup_circuit->last_rfci->next = rfci;
 461         } else {
 462             iuup_circuit->last_rfci = iuup_circuit->rfcis = rfci;
 463         }
 464
 465         c++;
 466     } while ( ! (oct & 0x80) );
 467
 468     return c - 1;
 469 }
 470
 471 static void dissect_iuup_init(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree) {
 472     int offset = 4;
 473     guint8 oct = tvb_get_guint8(tvb,offset);
 474     guint n = (oct & 0x0e) >> 1;
 475     gboolean ti = oct & 0x10;
 476     guint i;
 477     guint rfcis;
 478     proto_item* pi;
 479     proto_tree* support_tree = NULL;
 480     proto_tree* iptis_tree;
 481     iuup_circuit_t* iuup_circuit = NULL;
 482
 483     if (pinfo->circuit_id) {
 484         iuup_circuit = g_hash_table_lookup(circuits,GUINT_TO_POINTER(pinfo->circuit_id));
 485
 486         if (iuup_circuit) {
 487             g_hash_table_remove(circuits,GUINT_TO_POINTER(pinfo->circuit_id));
 488         }
 489
 490         iuup_circuit = se_alloc0(sizeof(iuup_circuit_t));
 491     } else {
 492         iuup_circuit = ep_alloc0(sizeof(iuup_circuit_t));
 493     }
 494
 495     iuup_circuit->id = pinfo->circuit_id;
 496     iuup_circuit->num_of_subflows = n;
 497     iuup_circuit->rfcis = NULL;
 498     iuup_circuit->last_rfci = NULL;
 499
 500     if (pinfo->circuit_id) {
 501         g_hash_table_insert(circuits,GUINT_TO_POINTER(iuup_circuit->id),iuup_circuit);
 502     }
 503
 504     if (tree) {
 505         proto_tree_add_item(tree,hf_iuup_spare_e0,tvb,offset,1,FALSE);
 506         proto_tree_add_item(tree,hf_iuup_init_ti,tvb,offset,1,FALSE);
 507         proto_tree_add_item(tree,hf_iuup_init_subflows_per_rfci,tvb,offset,1,FALSE);
 508         proto_tree_add_item(tree,hf_iuup_init_chain_ind,tvb,offset,1,FALSE);
 509     }
 510
 511     offset++;
 512
 513     rfcis = dissect_rfcis(tvb, pinfo, tree, &offset, iuup_circuit);
 514
 515     if (!tree) return;
 516
 517     if (ti) {
 518         pi = proto_tree_add_text(tree,tvb,offset,(rfcis/2)+(rfcis%2),"IPTIs");
 519         iptis_tree = proto_item_add_subtree(pi,ett_ipti);
 520
 521         for (i = 0; i <= rfcis; i++) {
 522             proto_tree_add_item(iptis_tree,hf_iuup_init_ipti[i],tvb,offset,1,FALSE);
 523             if ((i%2)) {
 524                 offset++;
 525             }
 526         }
 527
 528         if ((i%2)) {
 529             offset++;
 530         }
 531     }
 532
 533     if (tree) {
 534         pi = proto_tree_add_item(tree,hf_iuup_mode_versions,tvb,offset,2,FALSE);
 535         support_tree = proto_item_add_subtree(pi,ett_support);
 536
 537         for (i = 0; i < 16; i++) {
 538             proto_tree_add_item(support_tree,hf_iuup_mode_versions_a[i],tvb,offset,2,FALSE);
 539         }
 540
 541     }
 542
 543     offset += 2;
 544
 545     proto_tree_add_item(tree,hf_iuup_data_pdu_type,tvb,offset,1,FALSE);
 546
 547 }
 548
 549 static void dissect_iuup_ratectl(tvbuff_t* tvb, packet_info* pinfo _U_, proto_tree* tree) {
 550     guint num = tvb_get_guint8(tvb,4) & 0x3f;
 551     guint i;
 552     proto_item* pi;
 553     proto_tree* inds_tree;
 554     int offset = 4;
 555
 556     pi = proto_tree_add_item(tree,hf_iuup_num_rfci_ind,tvb,4,1,FALSE);
 557     inds_tree = proto_item_add_subtree(pi,ett_rfciinds);
 558
 559     for (i = 0; i < num; i++) {
 560         if (! (i % 8) ) offset++;
 561         proto_tree_add_item(inds_tree,hf_iuup_rfci_ratectl[i],tvb,offset,1,FALSE);
 562     }
 563
 564 }
 565
 566 static proto_item *add_hdr_crc(tvbuff_t* tvb, packet_info* pinfo, proto_item* iuup_tree, guint16 crccheck)
 567 {
 568     proto_item *crc_item;
 569     if (crccheck) {
 570         crc_item = proto_tree_add_item(iuup_tree,hf_iuup_hdr_crc_error,tvb,2,1,FALSE);
 571         expert_add_info_format(pinfo, crc_item, PI_CHECKSUM, PI_ERROR, "Bad checksum");
 572     } else {
 573         crc_item = proto_tree_add_item(iuup_tree,hf_iuup_hdr_crc,tvb,2,1,FALSE);
 574     }
 575     return crc_item;
 576 }
 577
 578 static proto_item *add_payload_crc(tvbuff_t* tvb, packet_info* pinfo, proto_item* iuup_tree)
 579 {
 580     proto_item *crc_item;
 581     int length = tvb_length(tvb);
 582     guint16 crc10 = tvb_get_ntohs(tvb, 2) & 0x3FF;
 583     guint16 crccheck = update_crc10_by_bytes(crc10, tvb_get_ptr(tvb, 4, length - 4), length - 4);
 584     if (crccheck) {
 585         crc_item = proto_tree_add_item(iuup_tree,hf_iuup_payload_crc_error,tvb,2,2,FALSE);
 586         expert_add_info_format(pinfo, crc_item, PI_CHECKSUM, PI_ERROR, "Bad checksum");
 587     } else {
 588         crc_item = proto_tree_add_item(iuup_tree,hf_iuup_payload_crc,tvb,2,2,FALSE);
 589     }
 590     return crc_item;
 591 }
 592
 593 #define ACKNACK_MASK  0x0c
 594 #define PROCEDURE_MASK  0x0f
 595 #define FQC_MASK 0xc0
 596 #define PDUTYPE_MASK 0xf0
 597 static void dissect_iuup(tvbuff_t* tvb_in, packet_info* pinfo, proto_tree* tree) {
 598     proto_item* pi;
 599     proto_item* iuup_item = NULL;
 600     proto_item* pdutype_item = NULL;
 601     proto_tree* iuup_tree = NULL;
 602     proto_item* proc_item = NULL;
 603     proto_item* ack_item = NULL;
 604     guint8 first_octet;
 605     guint8 second_octet;
 606     guint8 pdutype;
 607     guint phdr = 0;
 608     guint16  hdrcrc6;
 609     guint16  crccheck;
 610     tvbuff_t* tvb = tvb_in;
 611
 612     col_set_str(pinfo->cinfo, COL_PROTOCOL, "IuUP");
 613
 614     if (two_byte_pseudoheader) {
 615         int len = tvb_length(tvb_in) - 2;
 616
 617         phdr = tvb_get_ntohs(tvb,0);
 618
 619         proto_tree_add_item(tree,hf_iuup_direction,tvb,0,2,FALSE);
 620         proto_tree_add_item(tree,hf_iuup_circuit_id,tvb,0,2,FALSE);
 621
 622         phdr &= 0x7fff;
 623
 624         pinfo->circuit_id = phdr;
 625
 626         tvb = tvb_new_subset(tvb_in,2,len,len);
 627     }
 628
 629     first_octet =  tvb_get_guint8(tvb,0);
 630     second_octet =  tvb_get_guint8(tvb,1);
 631     hdrcrc6 = tvb_get_guint8(tvb, 2) >> 2;
 632     crccheck = update_crc6_by_bytes(hdrcrc6, first_octet, second_octet);
 633
 634     pdutype = ( first_octet & PDUTYPE_MASK ) >> 4;
 635
 636     if (tree) {
 637         iuup_item = proto_tree_add_item(tree,proto_iuup,tvb,0,-1,FALSE);
 638         iuup_tree = proto_item_add_subtree(iuup_item,ett_iuup);
 639
 640         pdutype_item = proto_tree_add_item(iuup_tree,hf_iuup_pdu_type,tvb,0,1,FALSE);
 641     }
 642
 643     if (check_col(pinfo->cinfo, COL_INFO)) {
 644         col_add_str(pinfo->cinfo, COL_INFO, val_to_str(pdutype, iuup_colinfo_pdu_types, "Unknown PDU Type(%u) "));
 645     }
 646
 647     switch(pdutype) {
 648         case PDUTYPE_DATA_WITH_CRC:
 649             if (check_col(pinfo->cinfo, COL_INFO)) {
 650                 col_append_fstr(pinfo->cinfo, COL_INFO,"FN: %x RFCI: %u", (guint)(first_octet & 0x0f) ,(guint)(second_octet & 0x3f));
 651             }
 652
 653             if (!tree) return;
 654             proto_tree_add_item(iuup_tree,hf_iuup_frame_number,tvb,0,1,FALSE);
 655             pi = proto_tree_add_item(iuup_tree,hf_iuup_fqc,tvb,1,1,FALSE);
 656
 657             if (first_octet & FQC_MASK) {
 658                 proto_item_set_expert_flags(pi, PI_RESPONSE_CODE, PI_WARN);
 659                 proto_item_set_expert_flags(iuup_item, PI_RESPONSE_CODE, PI_WARN);
 660             }
 661
 662             proto_tree_add_item(iuup_tree,hf_iuup_rfci,tvb,1,1,FALSE);
 663             add_hdr_crc(tvb, pinfo, iuup_tree, crccheck);
 664             add_payload_crc(tvb, pinfo, iuup_tree);
 665             dissect_iuup_payload(tvb,pinfo,iuup_tree,second_octet & 0x3f,4);
 666             return;
 667         case PDUTYPE_DATA_NO_CRC:
 668             if (check_col(pinfo->cinfo, COL_INFO)) {
 669                 col_append_fstr(pinfo->cinfo, COL_INFO," RFCI %u", (guint)(second_octet & 0x3f));
 670             }
 671             if (!tree) return;
 672             proto_tree_add_item(iuup_tree,hf_iuup_frame_number,tvb,0,1,FALSE);
 673             pi = proto_tree_add_item(iuup_tree,hf_iuup_fqc,tvb,1,1,FALSE);
 674
 675             if (first_octet & FQC_MASK) {
 676                 proto_item_set_expert_flags(pi, PI_RESPONSE_CODE, PI_WARN);
 677                 proto_item_set_expert_flags(iuup_item, PI_RESPONSE_CODE, PI_WARN);
 678             }
 679
 680             proto_tree_add_item(iuup_tree,hf_iuup_rfci,tvb,1,1,FALSE);
 681             add_hdr_crc(tvb, pinfo, iuup_tree, crccheck);
 682             dissect_iuup_payload(tvb,pinfo,iuup_tree,second_octet & 0x3f,3);
 683             return;
 684         case PDUTYPE_DATA_CONTROL_PROC:
 685             if (tree) {
 686                 ack_item = proto_tree_add_item(iuup_tree,hf_iuup_ack_nack,tvb,0,1,FALSE);
 687                 proto_tree_add_item(iuup_tree,hf_iuup_frame_number_t14,tvb,0,1,FALSE);
 688                 proto_tree_add_item(iuup_tree,hf_iuup_mode_version,tvb,1,1,FALSE);
 689                 proc_item = proto_tree_add_item(iuup_tree,hf_iuup_procedure_indicator,tvb,1,1,FALSE);
 690                 add_hdr_crc(tvb, pinfo, iuup_tree, crccheck);
 691             }
 692
 693             if (check_col(pinfo->cinfo, COL_INFO)) {
 694                 col_append_str(pinfo->cinfo, COL_INFO,
 695                                val_to_str(first_octet & ACKNACK_MASK,
 696                                           iuup_colinfo_acknack_vals, "[action:%u] "));
 697
 698                 col_append_str(pinfo->cinfo, COL_INFO,
 699                                val_to_str(second_octet & PROCEDURE_MASK,
 700                                           iuup_colinfo_procedures, "[proc:%u] "));
 701             }
 702
 703             switch ( first_octet & ACKNACK_MASK ) {
 704                 case ACKNACK_ACK:
 705                     switch(second_octet & PROCEDURE_MASK) {
 706                         case PROC_INIT:
 707                             if (!tree) return;
 708                             proto_tree_add_item(iuup_tree,hf_iuup_spare_03,tvb,2,1,FALSE);
 709                             proto_tree_add_item(iuup_tree,hf_iuup_spare_ff,tvb,3,1,FALSE);
 710                             return;
 711                         case PROC_RATE:
 712                             if (!tree) return;
 713                             dissect_iuup_ratectl(tvb,pinfo,iuup_tree);
 714                             return;
 715                         case PROC_TIME:
 716                         case PROC_ERROR:
 717                             break;
 718                         default:
 719                             if (!tree) return;
 720                             proto_item_set_expert_flags(proc_item, PI_MALFORMED, PI_ERROR);
 721                             return;
 722                     }
 723                     break;
 724                 case ACKNACK_NACK:
 725                     if (!tree) return;
 726                     pi = proto_tree_add_item(iuup_tree,hf_iuup_error_cause_val,tvb,4,1,FALSE);
 727                     proto_item_set_expert_flags(pi, PI_RESPONSE_CODE, PI_ERROR);
 728                     return;
 729                 case ACKNACK_RESERVED:
 730                     if (!tree) return;
 731                     proto_item_set_expert_flags(ack_item, PI_MALFORMED, PI_ERROR);
 732                     return;
 733                 case ACKNACK_PROC:
 734                     break;
 735             }
 736
 737             switch( second_octet & PROCEDURE_MASK ) {
 738                 case PROC_INIT:
 739                     if (tree) add_payload_crc(tvb, pinfo, iuup_tree);
 740                     dissect_iuup_init(tvb,pinfo,iuup_tree);
 741                     return;
 742                 case PROC_RATE:
 743                     if (!tree) return;
 744                     add_payload_crc(tvb, pinfo, iuup_tree);
 745                     dissect_iuup_ratectl(tvb,pinfo,iuup_tree);
 746                     return;
 747                 case PROC_TIME:
 748                 {
 749                     proto_tree* time_tree;
 750                     guint ta;
 751
 752                     if (!tree) return;
 753
 754                     ta = tvb_get_guint8(tvb,4);
 755
 756                     pi = proto_tree_add_item(iuup_tree,hf_iuup_time_align,tvb,4,1,FALSE);
 757                     time_tree = proto_item_add_subtree(pi,ett_time);
 758
 759                     if (ta >= 1 && ta <= 80) {
 760                         pi = proto_tree_add_uint(time_tree,hf_iuup_delay,tvb,4,1,ta * 500);
 761                         PROTO_ITEM_SET_GENERATED(pi);
 762                         pi = proto_tree_add_float(time_tree,hf_iuup_delta,tvb,4,1,((gfloat)((gint)(ta) * 500))/(gfloat)1000000.0);
 763                         PROTO_ITEM_SET_GENERATED(pi);
 764                     } else if (ta >= 129 && ta <= 208) {
 765                         pi = proto_tree_add_uint(time_tree,hf_iuup_advance,tvb,4,1,(ta-128) * 500);
 766                         PROTO_ITEM_SET_GENERATED(pi);
 767                         pi = proto_tree_add_float(time_tree,hf_iuup_delta,tvb,4,1,((gfloat)((gint)(-(((gint)ta)-128))) * 500)/(gfloat)1000000.0);
 768                         PROTO_ITEM_SET_GENERATED(pi);
 769                     } else {
 770                         proto_item_set_expert_flags(pi, PI_MALFORMED, PI_ERROR);
 771                     }
 772
 773                     proto_tree_add_item(iuup_tree,hf_iuup_spare_bytes,tvb,5,-1,FALSE);
 774                     return;
 775                 }
 776                 case PROC_ERROR:
 777                     if (check_col(pinfo->cinfo, COL_INFO)) {
 778                         col_append_str(pinfo->cinfo, COL_INFO, val_to_str(tvb_get_guint8(tvb,4) & 0x3f,iuup_error_causes,"Unknown (%u)"));
 779                     }
 780                     if (!tree) return;
 781                     proto_tree_add_item(iuup_tree,hf_iuup_error_distance,tvb,4,1,FALSE);
 782                     pi = proto_tree_add_item(iuup_tree,hf_iuup_errorevt_cause_val,tvb,4,1,FALSE);
 783                     proto_item_set_expert_flags(pi, PI_RESPONSE_CODE, PI_ERROR);
 784                     proto_tree_add_item(iuup_tree,hf_iuup_spare_bytes,tvb,5,-1,FALSE);
 785                     return;
 786                 default: /* bad */
 787                     if (!tree) return;
 788                     proto_item_set_expert_flags(proc_item, PI_MALFORMED, PI_ERROR);
 789                     return;
 790             }
 791         default:
 792             if (!tree) return;
 793             proto_item_set_expert_flags(pdutype_item, PI_MALFORMED, PI_ERROR);
 794             return;
 795     }
 796 }
 797
 798
 799 static gboolean dissect_iuup_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) {
 800     int len = tvb_length(tvb);
 801
 802     guint8 first_octet =  tvb_get_guint8(tvb,0);
 803     guint8 second_octet =  tvb_get_guint8(tvb,1);
 804     guint16 hdrcrc6 = tvb_get_guint8(tvb, 2) >> 2;
 805
 806     if (update_crc6_by_bytes(hdrcrc6, first_octet, second_octet)) return FALSE;
 807
 808     switch ( first_octet & 0xf0 ) {
 809         case 0x00: {
 810             if (len<7) return FALSE;
 811             if (update_crc10_by_bytes((guint16)(tvb_get_ntohs(tvb, 4) & 0x3FF), tvb_get_ptr(tvb, 6, len-4), len-4) ) return FALSE;
 812             break;
 813         }
 814         case 0x10:
 815             /* a FALSE positive factory */
 816             if (len<5) return FALSE;
 817             break;
 818         case 0xe0:
 819             if (len<5) return FALSE;
 820             if( (second_octet & 0x0f) > 3) return FALSE;
 821         default:
 822             return FALSE;
 823     }
 824
 825     dissect_iuup(tvb, pinfo, tree);
 826     return TRUE;
 827 }
 828
 829
 830 static void find_iuup(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) {
 831     int len = tvb_length(tvb);
 832     int offset = 0;
 833
 834     while (len > 3) {
 835         if ( dissect_iuup_heur(tvb_new_subset_remaining(tvb,offset), pinfo, tree) )
 836             return;
 837
 838         offset++;
 839         len--;
 840     }
 841
 842     call_dissector(data_handle, tvb, pinfo, tree);
 843 }
 844
 845 static void init_iuup(void) {
 846     if (circuits)
 847         g_hash_table_destroy(circuits);
 848     circuits = g_hash_table_new(g_direct_hash,g_direct_equal);
 849 }
 850
 851
 852 void proto_reg_handoff_iuup(void) {
 853     static gboolean iuup_prefs_initialized = FALSE;
 854     static dissector_handle_t iuup_handle;
 855     static guint saved_dynamic_payload_type = 0;
 856
 857     if (!iuup_prefs_initialized) {
 858         iuup_handle = find_dissector("iuup");
 859         dissector_add_string("rtp_dyn_payload_type","VND.3GPP.IUFP", iuup_handle);
 860         data_handle = find_dissector("data");
 861         iuup_prefs_initialized = TRUE;
 862     } else {
 863         if ( saved_dynamic_payload_type > 95 ) {
 864             dissector_delete("rtp.pt", saved_dynamic_payload_type, iuup_handle);
 865         }
 866     }
 867
 868     saved_dynamic_payload_type = global_dynamic_payload_type;
 869
 870     if ( global_dynamic_payload_type > 95 ) {
 871         dissector_add("rtp.pt", global_dynamic_payload_type, iuup_handle);
 872     }
 873 }
 874
 875
 876 #define HFS_RFCI(i) \
 877 { &hf_iuup_rfci_ratectl[i], { "RFCI " #i, "iuup.rfci." #i, FT_UINT8, BASE_DEC, VALS(iuup_rfci_indicator),0x80>>(i%8),NULL,HFILL}}, \
 878 { &hf_iuup_init_rfci[i], { "RFCI " #i, "iuup.rfci." #i, FT_UINT8, BASE_DEC, NULL,0x3f,NULL,HFILL}}, \
 879 { &hf_iuup_init_rfci_flow_len[i][0], { "RFCI " #i " Flow 0 Len", "iuup.rfci."#i".flow.0.len", FT_UINT16, BASE_DEC, NULL,0x0,NULL,HFILL}}, \
 880 { &hf_iuup_init_rfci_flow_len[i][1], { "RFCI " #i " Flow 1 Len", "iuup.rfci."#i".flow.1.len", FT_UINT16, BASE_DEC, NULL,0x0,NULL,HFILL}}, \
 881 { &hf_iuup_init_rfci_flow_len[i][2], { "RFCI " #i " Flow 2 Len", "iuup.rfci."#i".flow.2.len", FT_UINT16, BASE_DEC, NULL,0x0,NULL,HFILL}}, \
 882 { &hf_iuup_init_rfci_flow_len[i][3], { "RFCI " #i " Flow 3 Len", "iuup.rfci."#i".flow.3.len", FT_UINT16, BASE_DEC, NULL,0x0,NULL,HFILL}}, \
 883 { &hf_iuup_init_rfci_flow_len[i][4], { "RFCI " #i " Flow 4 Len", "iuup.rfci."#i".flow.4.len", FT_UINT16, BASE_DEC, NULL,0x0,NULL,HFILL}}, \
 884 { &hf_iuup_init_rfci_flow_len[i][5], { "RFCI " #i " Flow 5 Len", "iuup.rfci."#i".flow.5.len", FT_UINT16, BASE_DEC, NULL,0x0,NULL,HFILL}}, \
 885 { &hf_iuup_init_rfci_flow_len[i][6], { "RFCI " #i " Flow 6 Len", "iuup.rfci."#i".flow.6.len", FT_UINT16, BASE_DEC, NULL,0x0,NULL,HFILL}}, \
 886 { &hf_iuup_init_rfci_flow_len[i][7], { "RFCI " #i " Flow 7 Len", "iuup.rfci."#i".flow.7.len", FT_UINT16, BASE_DEC, NULL,0x0,NULL,HFILL}}, \
 887 { &hf_iuup_init_rfci_li[i], { "RFCI " #i " LI", "iuup.rfci."#i".li", FT_UINT8, BASE_HEX, VALS(iuup_init_rfci_li_vals),0x40,"Length Indicator",HFILL}}, \
 888 { &hf_iuup_init_rfci_lri[i], { "RFCI " #i " LRI", "iuup.rfci."#i".lri", FT_UINT8, BASE_HEX, VALS(iuup_init_lri_vals),0x80,"Last Record Indicator",HFILL}}, \
 889 { &hf_iuup_rfci_subflow[i][0], { "RFCI " #i " Flow 0", "iuup.rfci."#i".flow.0", FT_BYTES, BASE_NONE, NULL,0x0,NULL,HFILL}}, \
 890 { &hf_iuup_rfci_subflow[i][1], { "RFCI " #i " Flow 1", "iuup.rfci."#i".flow.1", FT_BYTES, BASE_NONE, NULL,0x0,NULL,HFILL}}, \
 891 { &hf_iuup_rfci_subflow[i][2], { "RFCI " #i " Flow 2", "iuup.rfci."#i".flow.2", FT_BYTES, BASE_NONE, NULL,0x0,NULL,HFILL}}, \
 892 { &hf_iuup_rfci_subflow[i][3], { "RFCI " #i " Flow 3", "iuup.rfci."#i".flow.3", FT_BYTES, BASE_NONE, NULL,0x0,NULL,HFILL}}, \
 893 { &hf_iuup_rfci_subflow[i][4], { "RFCI " #i " Flow 4", "iuup.rfci."#i".flow.4", FT_BYTES, BASE_NONE, NULL,0x0,NULL,HFILL}}, \
 894 { &hf_iuup_rfci_subflow[i][5], { "RFCI " #i " Flow 5", "iuup.rfci."#i".flow.5", FT_BYTES, BASE_NONE, NULL,0x0,NULL,HFILL}}, \
 895 { &hf_iuup_rfci_subflow[i][6], { "RFCI " #i " Flow 6", "iuup.rfci."#i".flow.6", FT_BYTES, BASE_NONE, NULL,0x0,NULL,HFILL}}, \
 896 { &hf_iuup_rfci_subflow[i][7], { "RFCI " #i " Flow 7", "iuup.rfci."#i".flow.7", FT_BYTES, BASE_NONE, NULL,0x0,NULL,HFILL}}, \
 897 { &hf_iuup_init_ipti[i], { "RFCI " #i " IPTI", "iuup.rfci."#i".ipti", FT_UINT8, BASE_HEX, NULL,i%2 ? 0x0F : 0xF0,NULL,HFILL}}
 898
 899
 900
 901 void proto_register_iuup(void) {
 902     static hf_register_info hf[] = {
 903         { &hf_iuup_direction, { "Frame Direction", "iuup.direction", FT_UINT16, BASE_DEC, NULL,0x8000,NULL,HFILL}},
 904         { &hf_iuup_circuit_id, { "Circuit ID", "iuup.circuit_id", FT_UINT16, BASE_DEC, NULL,0x7fff,NULL,HFILL}},
 905         { &hf_iuup_pdu_type, { "PDU Type", "iuup.pdu_type", FT_UINT8, BASE_DEC, VALS(iuup_pdu_types),0xf0,NULL,HFILL}},
 906         { &hf_iuup_frame_number, { "Frame Number", "iuup.framenum", FT_UINT8, BASE_DEC, NULL,0x0F,NULL,HFILL}},
 907         { &hf_iuup_fqc, { "FQC", "iuup.fqc", FT_UINT8, BASE_DEC, VALS(iuup_fqcs),0xc0,"Frame Quality Classification",HFILL}},
 908         { &hf_iuup_rfci, { "RFCI", "iuup.rfci", FT_UINT8, BASE_HEX, NULL, 0x3f, "RAB sub-Flow Combination Indicator",HFILL}},
 909         { &hf_iuup_hdr_crc, { "Header CRC", "iuup.header_crc", FT_UINT8, BASE_HEX, NULL,0xfc,NULL,HFILL}},
 910         { &hf_iuup_hdr_crc_error, { "Header CRC [incorrect]", "iuup.header_crc", FT_UINT8, BASE_HEX, NULL,0xfc,NULL,HFILL}},
 911         { &hf_iuup_payload_crc, { "Payload CRC", "iuup.payload_crc", FT_UINT16, BASE_HEX, NULL,0x03FF,NULL,HFILL}},
 912         { &hf_iuup_payload_crc_error, { "Payload CRC [incorrect]", "iuup.payload_crc", FT_UINT16, BASE_HEX, NULL,0x03FF,NULL,HFILL}},
 913         { &hf_iuup_ack_nack, { "Ack/Nack", "iuup.ack", FT_UINT8, BASE_DEC, VALS(iuup_acknack_vals),0x0c,NULL,HFILL}},
 914         { &hf_iuup_frame_number_t14, { "Frame Number", "iuup.framenum", FT_UINT8, BASE_DEC, NULL,0x03,NULL,HFILL}},
 915         { &hf_iuup_mode_version, { "Mode Version", "iuup.mode", FT_UINT8, BASE_HEX, NULL,0xf0,NULL,HFILL}},
 916         { &hf_iuup_procedure_indicator, { "Procedure", "iuup.procedure", FT_UINT8, BASE_DEC, VALS(iuup_procedures),0x0f,NULL,HFILL}},
 917         { &hf_iuup_error_cause_val, { "Error Cause", "iuup.error_cause", FT_UINT8, BASE_DEC, VALS(iuup_error_causes),0xfc,NULL,HFILL}},
 918         { &hf_iuup_error_distance, { "Error DISTANCE", "iuup.error_distance", FT_UINT8, BASE_DEC, VALS(iuup_error_distances),0xc0,NULL,HFILL}},
 919         { &hf_iuup_errorevt_cause_val, { "Error Cause", "iuup.error_cause", FT_UINT8, BASE_DEC, NULL,0x3f,NULL,HFILL}},
 920         { &hf_iuup_time_align, { "Time Align", "iuup.time_align", FT_UINT8, BASE_HEX, NULL,0x0,NULL,HFILL}},
 921         { &hf_iuup_data_pdu_type, { "RFCI Data Pdu Type", "iuup.data_pdu_type", FT_UINT8, BASE_HEX, VALS(iuup_payload_pdu_type),0xF0,NULL,HFILL}},
 922
 923         { &hf_iuup_spare_03, { "Spare", "iuup.spare", FT_UINT8, BASE_HEX, NULL,0x03,NULL,HFILL}},
 924         { &hf_iuup_spare_0f, { "Spare", "iuup.spare", FT_UINT8, BASE_HEX, NULL,0x0f,NULL,HFILL}},
 925         { &hf_iuup_spare_c0, { "Spare", "iuup.spare", FT_UINT8, BASE_HEX, NULL,0xc0,NULL,HFILL}},
 926         { &hf_iuup_spare_e0, { "Spare", "iuup.spare", FT_UINT8, BASE_HEX, NULL,0xe0,NULL,HFILL}},
 927         { &hf_iuup_spare_ff, { "Spare", "iuup.spare", FT_UINT8, BASE_HEX, NULL,0xff,NULL,HFILL}},
 928         { &hf_iuup_spare_bytes, { "Spare", "iuup.spare", FT_BYTES, BASE_NONE, NULL,0x0,NULL,HFILL}},
 929
 930         { &hf_iuup_delay, { "Delay", "iuup.delay", FT_UINT32, BASE_HEX, NULL,0x0,NULL,HFILL}},
 931         { &hf_iuup_advance, { "Advance", "iuup.advance", FT_UINT32, BASE_HEX, NULL,0x0,NULL,HFILL}},
 932         { &hf_iuup_delta, { "Delta Time", "iuup.delta", FT_FLOAT, BASE_NONE, NULL,0x0,NULL,HFILL}},
 933
 934         { &hf_iuup_init_ti, { "TI", "iuup.ti", FT_UINT8, BASE_DEC, VALS(iuup_ti_vals),0x10,"Timing Information",HFILL}},
 935         { &hf_iuup_init_subflows_per_rfci, { "Subflows", "iuup.subflows", FT_UINT8, BASE_DEC, NULL,0x0e,"Number of Subflows",HFILL}},
 936         { &hf_iuup_init_chain_ind, { "Chain Indicator", "iuup.chain_ind", FT_UINT8, BASE_DEC, VALS(iuup_init_chain_ind_vals),0x01,NULL,HFILL}},
 937         { &hf_iuup_payload, { "Payload Data", "iuup.payload_data", FT_BYTES, BASE_NONE, NULL,0x00,NULL,HFILL}},
 938
 939
 940         { &hf_iuup_mode_versions, { "Iu UP Mode Versions Supported", "iuup.support_mode", FT_UINT16, BASE_HEX, NULL,0x0,NULL,HFILL}},
 941
 942         { &hf_iuup_mode_versions_a[ 0], { "Version 16", "iuup.support_mode.version16", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x8000,NULL,HFILL}},
 943         { &hf_iuup_mode_versions_a[ 1], { "Version 15", "iuup.support_mode.version15", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x4000,NULL,HFILL}},
 944         { &hf_iuup_mode_versions_a[ 2], { "Version 14", "iuup.support_mode.version14", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x2000,NULL,HFILL}},
 945         { &hf_iuup_mode_versions_a[ 3], { "Version 13", "iuup.support_mode.version13", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x1000,NULL,HFILL}},
 946         { &hf_iuup_mode_versions_a[ 4], { "Version 12", "iuup.support_mode.version12", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0800,NULL,HFILL}},
 947         { &hf_iuup_mode_versions_a[ 5], { "Version 11", "iuup.support_mode.version11", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0400,NULL,HFILL}},
 948         { &hf_iuup_mode_versions_a[ 6], { "Version 10", "iuup.support_mode.version10", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0200,NULL,HFILL}},
 949         { &hf_iuup_mode_versions_a[ 7], { "Version  9", "iuup.support_mode.version9", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0100,NULL,HFILL}},
 950         { &hf_iuup_mode_versions_a[ 8], { "Version  8", "iuup.support_mode.version8", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0080,NULL,HFILL}},
 951         { &hf_iuup_mode_versions_a[ 9], { "Version  7", "iuup.support_mode.version7", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0040,NULL,HFILL}},
 952         { &hf_iuup_mode_versions_a[10], { "Version  6", "iuup.support_mode.version6", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0020,NULL,HFILL}},
 953         { &hf_iuup_mode_versions_a[11], { "Version  5", "iuup.support_mode.version5", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0010,NULL,HFILL}},
 954         { &hf_iuup_mode_versions_a[12], { "Version  4", "iuup.support_mode.version4", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0008,NULL,HFILL}},
 955         { &hf_iuup_mode_versions_a[13], { "Version  3", "iuup.support_mode.version3", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0004,NULL,HFILL}},
 956         { &hf_iuup_mode_versions_a[14], { "Version  2", "iuup.support_mode.version2", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0002,NULL,HFILL}},
 957         { &hf_iuup_mode_versions_a[15], { "Version  1", "iuup.support_mode.version1", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0001,NULL,HFILL}},
 958
 959         { &hf_iuup_num_rfci_ind, { "Number of RFCI Indicators", "iuup.p", FT_UINT8, BASE_HEX, NULL,0x3f,NULL,HFILL}},
 960         { &hf_iuup_init_rfci_ind, { "RFCI Initialization", "iuup.rfci.init", FT_BYTES, BASE_NONE, NULL,0x0,NULL,HFILL}},
 961
 962         HFS_RFCI(0),HFS_RFCI(1),HFS_RFCI(2),HFS_RFCI(3),HFS_RFCI(4),HFS_RFCI(5),HFS_RFCI(6),HFS_RFCI(7),
 963         HFS_RFCI(8),HFS_RFCI(9),HFS_RFCI(10),HFS_RFCI(11),HFS_RFCI(12),HFS_RFCI(13),HFS_RFCI(14),HFS_RFCI(15),
 964         HFS_RFCI(16),HFS_RFCI(17),HFS_RFCI(18),HFS_RFCI(19),HFS_RFCI(20),HFS_RFCI(21),HFS_RFCI(22),HFS_RFCI(23),
 965         HFS_RFCI(24),HFS_RFCI(25),HFS_RFCI(26),HFS_RFCI(27),HFS_RFCI(28),HFS_RFCI(29),HFS_RFCI(30),HFS_RFCI(31),
 966         HFS_RFCI(32),HFS_RFCI(33),HFS_RFCI(34),HFS_RFCI(35),HFS_RFCI(36),HFS_RFCI(37),HFS_RFCI(38),HFS_RFCI(39),
 967         HFS_RFCI(40),HFS_RFCI(41),HFS_RFCI(42),HFS_RFCI(43),HFS_RFCI(44),HFS_RFCI(45),HFS_RFCI(46),HFS_RFCI(47),
 968         HFS_RFCI(48),HFS_RFCI(49),HFS_RFCI(50),HFS_RFCI(51),HFS_RFCI(52),HFS_RFCI(53),HFS_RFCI(54),HFS_RFCI(55),
 969         HFS_RFCI(56),HFS_RFCI(57),HFS_RFCI(58),HFS_RFCI(59),HFS_RFCI(60),HFS_RFCI(61),HFS_RFCI(62),HFS_RFCI(63)
 970
 971     };
 972
 973
 974     gint* ett[] = {
 975         &ett_iuup,
 976         &ett_rfci,
 977         &ett_ipti,
 978         &ett_support,
 979         &ett_time,
 980         &ett_rfciinds,
 981         &ett_payload,
 982         &ett_payload_subflows
 983     };
 984
 985     module_t* iuup_module;
 986
 987
 988     proto_iuup = proto_register_protocol("IuUP", "IuUP", "iuup");
 989     proto_register_field_array(proto_iuup, hf, array_length(hf));
 990     proto_register_subtree_array(ett, array_length(ett));
 991     register_dissector("iuup", dissect_iuup, proto_iuup);
 992     register_dissector("find_iuup", find_iuup, proto_iuup);
 993
 994     register_init_routine(&init_iuup);
 995
 996     iuup_module = prefs_register_protocol(proto_iuup, proto_reg_handoff_iuup);
 997
 998     prefs_register_bool_preference(iuup_module, "dissect_payload",
 999                                    "Dissect IuUP Payload bits",
1000                                    "Whether IuUP Payload bits should be dissected",
1001                                    &dissect_fields);
1002
1003     prefs_register_bool_preference(iuup_module, "two_byte_pseudoheader",
1004                                    "Two byte pseudoheader",
1005                                    "The payload contains a two byte pseudoheader indicating direction and circuit_id",
1006                                    &two_byte_pseudoheader);
1007
1008     prefs_register_uint_preference(iuup_module, "dynamic.payload.type",
1009                                                                    "IuUP dynamic payload type",
1010                                                                    "The dynamic payload type which will be interpreted as IuUP",
1011                                                                    10,
1012                                                                    &global_dynamic_payload_type);
1013 }
1014