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@gmail.com>
   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 dissector_handle_t iuup_handle = NULL;
 161 static gboolean dissect_fields = FALSE;
 162 static gboolean two_byte_pseudoheader = FALSE;
 163 static guint dynamic_payload_type = 0;
 164 static guint temp_dynamic_payload_type = 0;
 165 static gboolean iuup_prefs_initialized = FALSE;
 166
 167
 168 #define PDUTYPE_DATA_WITH_CRC 0
 169 #define PDUTYPE_DATA_NO_CRC 1
 170 #define PDUTYPE_DATA_CONTROL_PROC 14
 171
 172 static const value_string iuup_pdu_types[] = {
 173     {PDUTYPE_DATA_WITH_CRC,"Data with CRC"},
 174     {PDUTYPE_DATA_NO_CRC,"Data without CRC"},
 175     {PDUTYPE_DATA_CONTROL_PROC,"Control Procedure"},
 176     {0,NULL}
 177 };
 178
 179 static const value_string iuup_colinfo_pdu_types[] = {
 180     {PDUTYPE_DATA_WITH_CRC,"Data (CRC)"},
 181     {PDUTYPE_DATA_NO_CRC,"Data (no CRC)"},
 182     {PDUTYPE_DATA_CONTROL_PROC,""},
 183     {0,NULL}
 184 };
 185
 186 #define ACKNACK_ACK 0x4
 187 #define ACKNACK_NACK 0x8
 188 #define ACKNACK_RESERVED 0xc
 189 #define ACKNACK_PROC 0x0
 190
 191 static const value_string iuup_acknack_vals[] = {
 192     {ACKNACK_PROC >> 2,"Procedure"},
 193     {ACKNACK_ACK >> 2,"ACK"},
 194     {ACKNACK_NACK  >> 2,"NACK"},
 195     {ACKNACK_RESERVED  >> 2,"Reserved"},
 196     {0,NULL}
 197 };
 198
 199 static const value_string iuup_colinfo_acknack_vals[] = {
 200     {ACKNACK_PROC,""},
 201     {ACKNACK_ACK,"ACK "},
 202     {ACKNACK_NACK,"NACK "},
 203     {ACKNACK_RESERVED,"Reserved "},
 204     {0,NULL}
 205 };
 206
 207 #define PROC_INIT 0
 208 #define PROC_RATE 1
 209 #define PROC_TIME 2
 210 #define PROC_ERROR 3
 211
 212 static const value_string iuup_procedures[] = {
 213     {PROC_INIT,"Initialization"},
 214     {PROC_RATE,"Rate Control"},
 215     {PROC_TIME,"Time Alignment"},
 216     {PROC_ERROR,"Error Event"},
 217     {4,"Reserved(4)"},
 218     {5,"Reserved(5)"},
 219     {6,"Reserved(6)"},
 220     {7,"Reserved(7)"},
 221     {8,"Reserved(8)"},
 222     {9,"Reserved(9)"},
 223     {10,"Reserved(10)"},
 224     {11,"Reserved(11)"},
 225     {12,"Reserved(12)"},
 226     {13,"Reserved(13)"},
 227     {14,"Reserved(14)"},
 228     {15,"Reserved(15)"},
 229     {0,NULL}
 230 };
 231
 232 static const value_string iuup_colinfo_procedures[] = {
 233     {PROC_INIT,"Initialization "},
 234     {PROC_RATE,"Rate Control "},
 235     {PROC_TIME,"Time Alignment "},
 236     {PROC_ERROR,"Error Event "},
 237     {0,NULL}
 238 };
 239
 240
 241 static const value_string iuup_error_distances[] = {
 242     {0, "Reporting local error"},
 243     {1, "First forwarding of error event report"},
 244     {2, "Second forwarding of error event report"},
 245     {3, "Reserved"},
 246     {0,NULL}
 247 };
 248
 249 static const value_string iuup_error_causes[] = {
 250     {0, "CRC error of frame header"},
 251     {1, "CRC error of frame payload"},
 252     {2, "Unexpected frame number"},
 253     {3, "Frame loss"},
 254     {4, "PDU type unknown"},
 255     {5, "Unknown procedure"},
 256     {6, "Unknown reserved value"},
 257     {7, "Unknown field"},
 258     {8, "Frame too short"},
 259     {9, "Missing fields"},
 260     {16, "Unexpected PDU type"},
 261     {18, "Unexpected procedure"},
 262     {19, "Unexpected RFCI"},
 263     {20, "Unexpected value"},
 264     {42, "Initialisation failure"},
 265     {43, "Initialisation failure (network error, timer expiry)"},
 266     {44, "Initialisation failure (Iu UP function error, repeated NACK)"},
 267     {45, "Rate control failure"},
 268     {46, "Error event failure"},
 269     {47, "Time Alignment not supported"},
 270     {48, "Requested Time Alignment not possible"},
 271     {49, "Iu UP Mode version not supported"},
 272     {0,NULL}
 273 };
 274
 275 static const value_string iuup_rfci_indicator[] = {
 276     {0, "RFCI allowed"},
 277     {1, "RFCI barred"},
 278     {0,NULL}
 279 };
 280
 281
 282 static const value_string iuup_ti_vals[] = {
 283     {0, "IPTIs not present"},
 284     {1, "IPTIs present in frame"},
 285     {0,NULL}
 286 };
 287
 288 static const value_string iuup_mode_version_support[] = {
 289     {0, "not supported"},
 290     {1, "supported"},
 291     {0,NULL}
 292 };
 293
 294 static const value_string iuup_init_rfci_li_vals[] = {
 295     {0, "one octet used"},
 296     {1, "two octets used"},
 297     {0,NULL}
 298 };
 299
 300 static const value_string iuup_init_chain_ind_vals[] = {
 301     {0, "this frame is the last frame for the procedure"},
 302     {1, "additional frames will be sent for the procedure"},
 303     {0,NULL}
 304 };
 305
 306 static const value_string iuup_init_lri_vals[] = {
 307     {0, "Not last RFCI"},
 308     {1, "Last RFCI in current frame"},
 309     {0,NULL}
 310 };
 311
 312 static const value_string iuup_payload_pdu_type[] = {
 313     {0, "PDU type 0"},
 314     {1, "PDU type 1"},
 315     {0,NULL}
 316 };
 317
 318 static const value_string iuup_fqcs[] = {
 319     {0, "Frame Good"},
 320     {1, "Frame BAD"},
 321     {2, "Frame bad due to radio"},
 322     {3, "spare"},
 323     {0,NULL}
 324 };
 325
 326
 327 static proto_item*
 328 iuup_proto_tree_add_bits(proto_tree* tree, int hf, tvbuff_t* tvb, int offset, int bit_offset, guint bits, guint8** buf) {
 329     static const guint8 masks[] = {0x00,0x80,0xc0,0xe0,0xf0,0xf8,0xfc,0xfe};
 330     int len = (bits + bit_offset)/8 + ((bits + bit_offset)%8 ? 0 : 1);
 331     guint8* shifted_buffer;
 332     proto_item* pi;
 333     int i;
 334
 335     DISSECTOR_ASSERT(bit_offset < 8);
 336
 337     shifted_buffer = ep_tvb_memdup(tvb,offset,len+1);
 338
 339     for(i = 0; i < len; i++) {
 340         shifted_buffer[i] <<= bit_offset;
 341         shifted_buffer[i] |= (shifted_buffer[i+1] & masks[bit_offset]) >> (8 - bit_offset);
 342     }
 343
 344     shifted_buffer[len] <<=  bit_offset;
 345     shifted_buffer[len] &= masks[(bits + bit_offset)%8];
 346
 347     if (buf)
 348         *buf = shifted_buffer;
 349
 350     pi = proto_tree_add_bytes(tree, hf, tvb, offset, len + ((bits + bit_offset) % 8 ? 1 : 0) , shifted_buffer);
 351     proto_item_append_text(pi, " (%i Bits)", bits);
 352
 353     return pi;
 354 }
 355
 356 static void dissect_iuup_payload(tvbuff_t* tvb, packet_info* pinfo _U_, proto_tree* tree, guint rfci_id _U_, int offset) {
 357     iuup_circuit_t* iuup_circuit;
 358     iuup_rfci_t *rfci;
 359     int last_offset = tvb_length(tvb) - 1;
 360     guint bit_offset = 0;
 361     proto_item* pi;
 362
 363     pi = proto_tree_add_item(tree,hf_iuup_payload,tvb,offset,-1,FALSE);
 364
 365     if ( ! dissect_fields ) {
 366         return;
 367     } else if ( ! pinfo->circuit_id
 368                 || ! ( iuup_circuit  = g_hash_table_lookup(circuits,GUINT_TO_POINTER(pinfo->circuit_id)) ) ) {
 369         proto_item_set_expert_flags(pi, PI_UNDECODED, PI_WARN);
 370         return;
 371     }
 372
 373     for(rfci = iuup_circuit->rfcis; rfci; rfci = rfci->next)
 374         if ( rfci->id == rfci_id )
 375             break;
 376
 377     if (!rfci) {
 378         proto_item_set_expert_flags(pi, PI_UNDECODED, PI_WARN);
 379         return;
 380     }
 381
 382     tree = proto_item_add_subtree(pi,ett_payload);
 383
 384
 385     do {
 386         guint i;
 387         guint subflows = rfci->num_of_subflows;
 388         proto_tree* flow_tree;
 389
 390         pi = proto_tree_add_text(tree,tvb,offset,-1,"Payload Frame");
 391         flow_tree = proto_item_add_subtree(pi,ett_payload_subflows);
 392
 393         bit_offset = 0;
 394
 395         for(i = 0; i < subflows; i++) {
 396
 397             if (! rfci->subflow[i].len)
 398                 continue;
 399
 400             iuup_proto_tree_add_bits(flow_tree, hf_iuup_rfci_subflow[rfci->id][i], tvb,
 401                                 offset + (bit_offset/8),
 402                                 bit_offset % 8,
 403                                 rfci->subflow[i].len,
 404                                 NULL);
 405
 406             bit_offset += rfci->subflow[i].len;
 407         }
 408
 409         offset += (bit_offset / 8) + (bit_offset % 8 ? 1 : 0);
 410
 411     } while (offset <= last_offset);
 412 }
 413
 414 static guint dissect_rfcis(tvbuff_t* tvb, packet_info* pinfo _U_, proto_tree* tree, int* offset, iuup_circuit_t* iuup_circuit) {
 415     proto_item* pi;
 416     proto_tree* pt;
 417     guint8 oct;
 418     guint c = 0;
 419     guint i;
 420
 421     do {
 422         iuup_rfci_t *rfci = se_alloc0(sizeof(iuup_rfci_t));
 423         guint len = 0;
 424
 425         DISSECTOR_ASSERT(c < 64);
 426
 427         pi = proto_tree_add_item(tree,hf_iuup_init_rfci_ind,tvb,*offset,-1,FALSE);
 428         pt = proto_item_add_subtree(pi,ett_rfci);
 429
 430         proto_tree_add_item(pt,hf_iuup_init_rfci_lri[c],tvb,*offset,1,FALSE);
 431         proto_tree_add_item(pt,hf_iuup_init_rfci_li[c],tvb,*offset,1,FALSE);
 432         proto_tree_add_item(pt,hf_iuup_init_rfci[c],tvb,*offset,1,FALSE);
 433
 434         oct = tvb_get_guint8(tvb,*offset);
 435         rfci->id = oct & 0x3f;
 436         rfci->num_of_subflows = iuup_circuit->num_of_subflows;
 437
 438         len = (oct & 0x40) ? 2 : 1;
 439         proto_item_set_text(pi,"RFCI %i Initialization",rfci->id);
 440         proto_item_set_len(pi,(len*iuup_circuit->num_of_subflows)+1);
 441
 442         (*offset)++;
 443
 444         for(i = 0; i < iuup_circuit->num_of_subflows; i++) {
 445             guint subflow_len;
 446
 447             if (len == 2) {
 448                 subflow_len = tvb_get_ntohs(tvb,*offset);
 449             } else {
 450                 subflow_len = tvb_get_guint8(tvb,*offset);
 451             }
 452
 453             rfci->subflow[i].len = subflow_len;
 454             rfci->sum_len += subflow_len;
 455
 456             proto_tree_add_uint(pt,hf_iuup_init_rfci_flow_len[c][i],tvb,*offset,len,subflow_len);
 457
 458             (*offset) += len;
 459         }
 460
 461
 462         if (iuup_circuit->last_rfci) {
 463             iuup_circuit->last_rfci = iuup_circuit->last_rfci->next = rfci;
 464         } else {
 465             iuup_circuit->last_rfci = iuup_circuit->rfcis = rfci;
 466         }
 467
 468         c++;
 469     } while ( ! (oct & 0x80) );
 470
 471     return c - 1;
 472 }
 473
 474 static void dissect_iuup_init(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree) {
 475     int offset = 4;
 476     guint8 oct = tvb_get_guint8(tvb,offset);
 477     guint n = (oct & 0x0e) >> 1;
 478     gboolean ti = oct & 0x10;
 479     guint i;
 480     guint rfcis;
 481     proto_item* pi;
 482     proto_tree* support_tree = NULL;
 483     proto_tree* iptis_tree;
 484     iuup_circuit_t* iuup_circuit = NULL;
 485
 486     if (pinfo->circuit_id) {
 487         iuup_circuit = g_hash_table_lookup(circuits,GUINT_TO_POINTER(pinfo->circuit_id));
 488
 489         if (iuup_circuit) {
 490             g_hash_table_remove(circuits,GUINT_TO_POINTER(pinfo->circuit_id));
 491         }
 492
 493         iuup_circuit = se_alloc0(sizeof(iuup_circuit_t));
 494     } else {
 495         iuup_circuit = ep_alloc0(sizeof(iuup_circuit_t));
 496     }
 497
 498     iuup_circuit->id = pinfo->circuit_id;
 499     iuup_circuit->num_of_subflows = n;
 500     iuup_circuit->rfcis = NULL;
 501     iuup_circuit->last_rfci = NULL;
 502
 503     if (pinfo->circuit_id) {
 504         g_hash_table_insert(circuits,GUINT_TO_POINTER(iuup_circuit->id),iuup_circuit);
 505     }
 506
 507     if (tree) {
 508         proto_tree_add_item(tree,hf_iuup_spare_e0,tvb,offset,1,FALSE);
 509         proto_tree_add_item(tree,hf_iuup_init_ti,tvb,offset,1,FALSE);
 510         proto_tree_add_item(tree,hf_iuup_init_subflows_per_rfci,tvb,offset,1,FALSE);
 511         proto_tree_add_item(tree,hf_iuup_init_chain_ind,tvb,offset,1,FALSE);
 512     }
 513
 514     offset++;
 515
 516     rfcis = dissect_rfcis(tvb, pinfo, tree, &offset, iuup_circuit);
 517
 518     if (!tree) return;
 519
 520     if (ti) {
 521         pi = proto_tree_add_text(tree,tvb,offset,(rfcis/2)+(rfcis%2),"IPTIs");
 522         iptis_tree = proto_item_add_subtree(pi,ett_ipti);
 523
 524         for (i = 0; i <= rfcis; i++) {
 525             proto_tree_add_item(iptis_tree,hf_iuup_init_ipti[i],tvb,offset,1,FALSE);
 526             if ((i%2)) {
 527                 offset++;
 528             }
 529         }
 530
 531         if ((i%2)) {
 532             offset++;
 533         }
 534     }
 535
 536     if (tree) {
 537         pi = proto_tree_add_item(tree,hf_iuup_mode_versions,tvb,offset,2,FALSE);
 538         support_tree = proto_item_add_subtree(pi,ett_support);
 539
 540         for (i = 0; i < 16; i++) {
 541             proto_tree_add_item(support_tree,hf_iuup_mode_versions_a[i],tvb,offset,2,FALSE);
 542         }
 543
 544     }
 545
 546     offset += 2;
 547
 548     proto_tree_add_item(tree,hf_iuup_data_pdu_type,tvb,offset,1,FALSE);
 549
 550 }
 551
 552 static void dissect_iuup_ratectl(tvbuff_t* tvb, packet_info* pinfo _U_, proto_tree* tree) {
 553     guint num = tvb_get_guint8(tvb,4) & 0x3f;
 554     guint i;
 555     proto_item* pi;
 556     proto_tree* inds_tree;
 557     int offset = 4;
 558
 559     pi = proto_tree_add_item(tree,hf_iuup_num_rfci_ind,tvb,4,1,FALSE);
 560     inds_tree = proto_item_add_subtree(pi,ett_rfciinds);
 561
 562     for (i = 0; i < num; i++) {
 563         if (! (i % 8) ) offset++;
 564         proto_tree_add_item(inds_tree,hf_iuup_rfci_ratectl[i],tvb,offset,1,FALSE);
 565     }
 566
 567 }
 568
 569 proto_item *add_hdr_crc(tvbuff_t* tvb, packet_info* pinfo, proto_item* iuup_tree, guint16 crccheck)
 570 {
 571    proto_item *crc_item;
 572    if (crccheck) {
 573       crc_item = proto_tree_add_item(iuup_tree,hf_iuup_hdr_crc_error,tvb,2,1,FALSE);
 574       expert_add_info_format(pinfo, crc_item, PI_CHECKSUM, PI_ERROR, "Bad checksum");
 575    } else {
 576       crc_item = proto_tree_add_item(iuup_tree,hf_iuup_hdr_crc,tvb,2,1,FALSE);
 577    }
 578    return crc_item;
 579 }
 580
 581 proto_item *add_payload_crc(tvbuff_t* tvb, packet_info* pinfo, proto_item* iuup_tree)
 582 {
 583    proto_item *crc_item;
 584    int length = tvb_length(tvb);
 585    guint16 crc10 = tvb_get_ntohs(tvb, 2) & 0x3FF;
 586    guint16 crccheck = update_crc10_by_bytes(crc10, tvb_get_ptr(tvb, 4, length - 4), length - 4);
 587    if (crccheck) {
 588       crc_item = proto_tree_add_item(iuup_tree,hf_iuup_payload_crc_error,tvb,2,2,FALSE);
 589       expert_add_info_format(pinfo, crc_item, PI_CHECKSUM, PI_ERROR, "Bad checksum");
 590    } else {
 591       crc_item = proto_tree_add_item(iuup_tree,hf_iuup_payload_crc,tvb,2,2,FALSE);
 592    }
 593    return crc_item;
 594 }
 595
 596 #define ACKNACK_MASK  0x0c
 597 #define PROCEDURE_MASK  0x0f
 598 #define FQC_MASK 0xc0
 599 #define PDUTYPE_MASK 0xf0
 600 static void dissect_iuup(tvbuff_t* tvb_in, packet_info* pinfo, proto_tree* tree) {
 601     proto_item* pi;
 602     proto_item* iuup_item = NULL;
 603     proto_item* pdutype_item = NULL;
 604     proto_tree* iuup_tree = NULL;
 605     proto_item* proc_item = NULL;
 606     proto_item* ack_item = NULL;
 607     guint8 first_octet;
 608     guint8 second_octet;
 609     guint8 pdutype;
 610     guint phdr = 0;
 611     guint16  hdrcrc6;
 612     guint16  crccheck;
 613     tvbuff_t* tvb = tvb_in;
 614
 615     if (check_col(pinfo->cinfo, COL_PROTOCOL))
 616     {
 617                 col_set_str(pinfo->cinfo, COL_PROTOCOL, "IuUP");
 618     }
 619
 620     if (two_byte_pseudoheader) {
 621         int len = tvb_length(tvb_in) - 2;
 622
 623         phdr = tvb_get_ntohs(tvb,0);
 624
 625         proto_tree_add_item(tree,hf_iuup_direction,tvb,0,2,FALSE);
 626         proto_tree_add_item(tree,hf_iuup_circuit_id,tvb,0,2,FALSE);
 627
 628         phdr &= 0x7fff;
 629
 630         pinfo->circuit_id = phdr;
 631
 632         tvb = tvb_new_subset(tvb_in,2,len,len);
 633     }
 634
 635     first_octet =  tvb_get_guint8(tvb,0);
 636     second_octet =  tvb_get_guint8(tvb,1);
 637     hdrcrc6 = tvb_get_guint8(tvb, 2) >> 2;
 638     crccheck = update_crc6_by_bytes(hdrcrc6, first_octet, second_octet);
 639
 640     pdutype = ( first_octet & PDUTYPE_MASK ) >> 4;
 641
 642     if (tree) {
 643         iuup_item = proto_tree_add_item(tree,proto_iuup,tvb,0,-1,FALSE);
 644         iuup_tree = proto_item_add_subtree(iuup_item,ett_iuup);
 645
 646         pdutype_item = proto_tree_add_item(iuup_tree,hf_iuup_pdu_type,tvb,0,1,FALSE);
 647     }
 648
 649     if (check_col(pinfo->cinfo, COL_INFO)) {
 650         col_add_str(pinfo->cinfo, COL_INFO, val_to_str(pdutype, iuup_colinfo_pdu_types, "Unknown PDU Type(%u) "));
 651     }
 652
 653     switch(pdutype) {
 654         case PDUTYPE_DATA_WITH_CRC:
 655             if (check_col(pinfo->cinfo, COL_INFO)) {
 656                 col_append_fstr(pinfo->cinfo, COL_INFO,"FN: %x RFCI: %u", (guint)(first_octet & 0x0f) ,(guint)(second_octet & 0x3f));
 657             }
 658
 659             if (!tree) return;
 660             proto_tree_add_item(iuup_tree,hf_iuup_frame_number,tvb,0,1,FALSE);
 661             pi = proto_tree_add_item(iuup_tree,hf_iuup_fqc,tvb,1,1,FALSE);
 662
 663             if (first_octet & FQC_MASK) {
 664                 proto_item_set_expert_flags(pi, PI_RESPONSE_CODE, PI_WARN);
 665                 proto_item_set_expert_flags(iuup_item, PI_RESPONSE_CODE, PI_WARN);
 666             }
 667
 668             proto_tree_add_item(iuup_tree,hf_iuup_rfci,tvb,1,1,FALSE);
 669             add_hdr_crc(tvb, pinfo, iuup_tree, crccheck);
 670             add_payload_crc(tvb, pinfo, iuup_tree);
 671             dissect_iuup_payload(tvb,pinfo,iuup_tree,second_octet & 0x3f,4);
 672             return;
 673         case PDUTYPE_DATA_NO_CRC:
 674             if (check_col(pinfo->cinfo, COL_INFO)) {
 675                 col_append_fstr(pinfo->cinfo, COL_INFO," RFCI %u", (guint)(second_octet & 0x3f));
 676             }
 677             if (!tree) return;
 678             proto_tree_add_item(iuup_tree,hf_iuup_frame_number,tvb,0,1,FALSE);
 679             pi = proto_tree_add_item(iuup_tree,hf_iuup_fqc,tvb,1,1,FALSE);
 680
 681             if (first_octet & FQC_MASK) {
 682                 proto_item_set_expert_flags(pi, PI_RESPONSE_CODE, PI_WARN);
 683                 proto_item_set_expert_flags(iuup_item, PI_RESPONSE_CODE, PI_WARN);
 684             }
 685
 686             proto_tree_add_item(iuup_tree,hf_iuup_rfci,tvb,1,1,FALSE);
 687             add_hdr_crc(tvb, pinfo, iuup_tree, crccheck);
 688             dissect_iuup_payload(tvb,pinfo,iuup_tree,second_octet & 0x3f,3);
 689             return;
 690         case PDUTYPE_DATA_CONTROL_PROC:
 691             if (tree) {
 692                 ack_item = proto_tree_add_item(iuup_tree,hf_iuup_ack_nack,tvb,0,1,FALSE);
 693                 proto_tree_add_item(iuup_tree,hf_iuup_frame_number_t14,tvb,0,1,FALSE);
 694                 proto_tree_add_item(iuup_tree,hf_iuup_mode_version,tvb,1,1,FALSE);
 695                 proc_item = proto_tree_add_item(iuup_tree,hf_iuup_procedure_indicator,tvb,1,1,FALSE);
 696                 add_hdr_crc(tvb, pinfo, iuup_tree, crccheck);
 697             }
 698
 699             if (check_col(pinfo->cinfo, COL_INFO)) {
 700                 col_append_str(pinfo->cinfo, COL_INFO,
 701                                val_to_str(first_octet & ACKNACK_MASK,
 702                                           iuup_colinfo_acknack_vals, "[action:%u] "));
 703
 704                 col_append_str(pinfo->cinfo, COL_INFO,
 705                                val_to_str(second_octet & PROCEDURE_MASK,
 706                                           iuup_colinfo_procedures, "[proc:%u] "));
 707             }
 708
 709             switch ( first_octet & ACKNACK_MASK ) {
 710                 case ACKNACK_ACK:
 711                     switch(second_octet & PROCEDURE_MASK) {
 712                         case PROC_INIT:
 713                             if (!tree) return;
 714                             proto_tree_add_item(iuup_tree,hf_iuup_spare_03,tvb,2,1,FALSE);
 715                             proto_tree_add_item(iuup_tree,hf_iuup_spare_ff,tvb,3,1,FALSE);
 716                             return;
 717                         case PROC_RATE:
 718                             if (!tree) return;
 719                             dissect_iuup_ratectl(tvb,pinfo,iuup_tree);
 720                             return;
 721                         case PROC_TIME:
 722                         case PROC_ERROR:
 723                             break;
 724                         default:
 725                             if (!tree) return;
 726                             proto_item_set_expert_flags(proc_item, PI_MALFORMED, PI_ERROR);
 727                             return;
 728                     }
 729                     break;
 730                 case ACKNACK_NACK:
 731                     if (!tree) return;
 732                     pi = proto_tree_add_item(iuup_tree,hf_iuup_error_cause_val,tvb,4,1,FALSE);
 733                     proto_item_set_expert_flags(pi, PI_RESPONSE_CODE, PI_ERROR);
 734                     return;
 735                 case ACKNACK_RESERVED:
 736                     if (!tree) return;
 737                     proto_item_set_expert_flags(ack_item, PI_MALFORMED, PI_ERROR);
 738                     return;
 739                 case ACKNACK_PROC:
 740                     break;
 741             }
 742
 743             switch( second_octet & PROCEDURE_MASK ) {
 744                 case PROC_INIT:
 745                     if (tree) add_payload_crc(tvb, pinfo, iuup_tree);
 746                     dissect_iuup_init(tvb,pinfo,iuup_tree);
 747                     return;
 748                 case PROC_RATE:
 749                     if (!tree) return;
 750                     add_payload_crc(tvb, pinfo, iuup_tree);
 751                     dissect_iuup_ratectl(tvb,pinfo,iuup_tree);
 752                     return;
 753                 case PROC_TIME:
 754                 {
 755                     proto_tree* time_tree;
 756                     guint ta;
 757
 758                     if (!tree) return;
 759
 760                     ta = tvb_get_guint8(tvb,4);
 761
 762                     pi = proto_tree_add_item(iuup_tree,hf_iuup_time_align,tvb,4,1,FALSE);
 763                     time_tree = proto_item_add_subtree(pi,ett_time);
 764
 765                     if (ta >= 1 && ta <= 80) {
 766                         pi = proto_tree_add_uint(time_tree,hf_iuup_delay,tvb,4,1,ta * 500);
 767                         PROTO_ITEM_SET_GENERATED(pi);
 768                         pi = proto_tree_add_float(time_tree,hf_iuup_delta,tvb,4,1,((gfloat)((gint)(ta) * 500))/(gfloat)1000000.0);
 769                         PROTO_ITEM_SET_GENERATED(pi);
 770                     } else if (ta >= 129 && ta <= 208) {
 771                         pi = proto_tree_add_uint(time_tree,hf_iuup_advance,tvb,4,1,(ta-128) * 500);
 772                         PROTO_ITEM_SET_GENERATED(pi);
 773                         pi = proto_tree_add_float(time_tree,hf_iuup_delta,tvb,4,1,((gfloat)((gint)(-(((gint)ta)-128))) * 500)/(gfloat)1000000.0);
 774                         PROTO_ITEM_SET_GENERATED(pi);
 775                     } else {
 776                         proto_item_set_expert_flags(pi, PI_MALFORMED, PI_ERROR);
 777                     }
 778
 779                     proto_tree_add_item(iuup_tree,hf_iuup_spare_bytes,tvb,5,-1,FALSE);
 780                     return;
 781                 }
 782                 case PROC_ERROR:
 783                     if (check_col(pinfo->cinfo, COL_INFO)) {
 784                         col_append_str(pinfo->cinfo, COL_INFO, val_to_str(tvb_get_guint8(tvb,4) & 0x3f,iuup_error_causes,"Unknown (%u)"));
 785                     }
 786                     if (!tree) return;
 787                     proto_tree_add_item(iuup_tree,hf_iuup_error_distance,tvb,4,1,FALSE);
 788                     pi = proto_tree_add_item(iuup_tree,hf_iuup_errorevt_cause_val,tvb,4,1,FALSE);
 789                     proto_item_set_expert_flags(pi, PI_RESPONSE_CODE, PI_ERROR);
 790                     proto_tree_add_item(iuup_tree,hf_iuup_spare_bytes,tvb,5,-1,FALSE);
 791                     return;
 792                 default: /* bad */
 793                     if (!tree) return;
 794                     proto_item_set_expert_flags(proc_item, PI_MALFORMED, PI_ERROR);
 795                     return;
 796             }
 797         default:
 798             if (!tree) return;
 799             proto_item_set_expert_flags(pdutype_item, PI_MALFORMED, PI_ERROR);
 800             return;
 801     }
 802 }
 803
 804
 805 static gboolean dissect_iuup_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) {
 806         int len = tvb_length(tvb);
 807
 808         guint8 first_octet =  tvb_get_guint8(tvb,0);
 809         guint8 second_octet =  tvb_get_guint8(tvb,1);
 810         guint16 hdrcrc6 = tvb_get_guint8(tvb, 2) >> 2;
 811
 812         if (update_crc6_by_bytes(hdrcrc6, first_octet, second_octet)) return FALSE;
 813
 814         switch ( first_octet & 0xf0 ) {
 815                 case 0x00: {
 816                         if (len<7) return FALSE;
 817                         if (update_crc10_by_bytes((guint16)(tvb_get_ntohs(tvb, 4) & 0x3FF), tvb_get_ptr(tvb, 6, len-4), len-4) ) return FALSE;
 818                         break;
 819                 }
 820                 case 0x10:
 821                         /* a FALSE positive factory */
 822                         if (len<5) return FALSE;
 823                         break;
 824                 case 0xe0:
 825                         if (len<5) return FALSE;
 826                         if( (second_octet & 0x0f) > 3) return FALSE;
 827                 default:
 828                         return FALSE;
 829         }
 830
 831         dissect_iuup(tvb, pinfo, tree);
 832         return TRUE;
 833 }
 834
 835
 836 static void find_iuup(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) {
 837         int len = tvb_length(tvb);
 838         int offset = 0;
 839
 840         while (len > 3) {
 841                 if ( dissect_iuup_heur(tvb_new_subset(tvb,offset,-1,-1), pinfo, tree) )
 842                         return;
 843
 844                 offset++;
 845                 len--;
 846         }
 847
 848         call_dissector(data_handle, tvb, pinfo, tree);
 849 }
 850
 851 static void init_iuup(void) {
 852     if (circuits) g_hash_table_destroy(circuits);
 853     circuits = g_hash_table_new(g_direct_hash,g_direct_equal);
 854
 855     if (!iuup_prefs_initialized) {
 856         iuup_prefs_initialized = TRUE;
 857     } else if ( dynamic_payload_type > 95 ) {
 858             dissector_delete("rtp.pt", dynamic_payload_type, iuup_handle);
 859     }
 860
 861     dynamic_payload_type = temp_dynamic_payload_type;
 862
 863     if ( dynamic_payload_type > 95 ) {
 864         dissector_add("rtp.pt", dynamic_payload_type, iuup_handle);
 865     }
 866
 867     dissector_add_string("rtp_dyn_payload_type","VND.3GPP.IUFP", iuup_handle);
 868
 869 }
 870
 871
 872 void proto_reg_handoff_iuup(void) {
 873     data_handle = find_dissector("data");
 874 }
 875
 876
 877 #define HFS_RFCI(i) \
 878 { &hf_iuup_rfci_ratectl[i], { "RFCI " #i, "iuup.rfci." #i, FT_UINT8, BASE_DEC, VALS(iuup_rfci_indicator),0x80>>(i%8),"",HFILL}}, \
 879 { &hf_iuup_init_rfci[i], { "RFCI " #i, "iuup.rfci." #i, FT_UINT8, BASE_DEC, NULL,0x3f,"",HFILL}}, \
 880 { &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,"",HFILL}}, \
 881 { &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,"",HFILL}}, \
 882 { &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,"",HFILL}}, \
 883 { &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,"",HFILL}}, \
 884 { &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,"",HFILL}}, \
 885 { &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,"",HFILL}}, \
 886 { &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,"",HFILL}}, \
 887 { &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,"",HFILL}}, \
 888 { &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}}, \
 889 { &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}}, \
 890 { &hf_iuup_rfci_subflow[i][0], { "RFCI " #i " Flow 0", "iuup.rfci."#i".flow.0", FT_BYTES, BASE_HEX, NULL,0x0,"",HFILL}}, \
 891 { &hf_iuup_rfci_subflow[i][1], { "RFCI " #i " Flow 1", "iuup.rfci."#i".flow.1", FT_BYTES, BASE_HEX, NULL,0x0,"",HFILL}}, \
 892 { &hf_iuup_rfci_subflow[i][2], { "RFCI " #i " Flow 2", "iuup.rfci."#i".flow.2", FT_BYTES, BASE_HEX, NULL,0x0,"",HFILL}}, \
 893 { &hf_iuup_rfci_subflow[i][3], { "RFCI " #i " Flow 3", "iuup.rfci."#i".flow.3", FT_BYTES, BASE_HEX, NULL,0x0,"",HFILL}}, \
 894 { &hf_iuup_rfci_subflow[i][4], { "RFCI " #i " Flow 4", "iuup.rfci."#i".flow.4", FT_BYTES, BASE_HEX, NULL,0x0,"",HFILL}}, \
 895 { &hf_iuup_rfci_subflow[i][5], { "RFCI " #i " Flow 5", "iuup.rfci."#i".flow.5", FT_BYTES, BASE_HEX, NULL,0x0,"",HFILL}}, \
 896 { &hf_iuup_rfci_subflow[i][6], { "RFCI " #i " Flow 6", "iuup.rfci."#i".flow.6", FT_BYTES, BASE_HEX, NULL,0x0,"",HFILL}}, \
 897 { &hf_iuup_rfci_subflow[i][7], { "RFCI " #i " Flow 7", "iuup.rfci."#i".flow.7", FT_BYTES, BASE_HEX, NULL,0x0,"",HFILL}}, \
 898 { &hf_iuup_init_ipti[i], { "RFCI " #i " IPTI", "iuup.rfci."#i".ipti", FT_UINT8, BASE_HEX, NULL,i%2 ? 0x0F : 0xF0,"",HFILL}}
 899
 900
 901
 902 void proto_register_iuup(void) {
 903     static hf_register_info hf[] = {
 904         { &hf_iuup_direction, { "Frame Direction", "iuup.direction", FT_UINT16, BASE_DEC, NULL,0x8000,"",HFILL}},
 905         { &hf_iuup_circuit_id, { "Circuit ID", "iuup.circuit_id", FT_UINT16, BASE_DEC, NULL,0x7fff,"",HFILL}},
 906         { &hf_iuup_pdu_type, { "PDU Type", "iuup.pdu_type", FT_UINT8, BASE_DEC, VALS(iuup_pdu_types),0xf0,"",HFILL}},
 907         { &hf_iuup_frame_number, { "Frame Number", "iuup.framenum", FT_UINT8, BASE_DEC, NULL,0x0F,"",HFILL}},
 908         { &hf_iuup_fqc, { "FQC", "iuup.fqc", FT_UINT8, BASE_DEC, VALS(iuup_fqcs),0xc0,"Frame Quality Classification",HFILL}},
 909         { &hf_iuup_rfci, { "RFCI", "iuup.rfci", FT_UINT8, BASE_HEX, NULL, 0x3f, "RAB sub-Flow Combination Indicator",HFILL}},
 910         { &hf_iuup_hdr_crc, { "Header CRC", "iuup.header_crc", FT_UINT8, BASE_HEX, NULL,0xfc,"",HFILL}},
 911         { &hf_iuup_hdr_crc_error, { "Header CRC [incorrect]", "iuup.header_crc", FT_UINT8, BASE_HEX, NULL,0xfc,"",HFILL}},
 912         { &hf_iuup_payload_crc, { "Payload CRC", "iuup.payload_crc", FT_UINT16, BASE_HEX, NULL,0x03FF,"",HFILL}},
 913         { &hf_iuup_payload_crc_error, { "Payload CRC [incorrect]", "iuup.payload_crc", FT_UINT16, BASE_HEX, NULL,0x03FF,"",HFILL}},
 914         { &hf_iuup_ack_nack, { "Ack/Nack", "iuup.ack", FT_UINT8, BASE_DEC, VALS(iuup_acknack_vals),0x0c,"Ack/Nack",HFILL}},
 915         { &hf_iuup_frame_number_t14, { "Frame Number", "iuup.framenum", FT_UINT8, BASE_DEC, NULL,0x03,"",HFILL}},
 916         { &hf_iuup_mode_version, { "Mode Version", "iuup.mode", FT_UINT8, BASE_HEX, NULL,0xf0,"",HFILL}},
 917         { &hf_iuup_procedure_indicator, { "Procedure", "iuup.procedure", FT_UINT8, BASE_DEC, VALS(iuup_procedures),0x0f,"",HFILL}},
 918         { &hf_iuup_error_cause_val, { "Error Cause", "iuup.error_cause", FT_UINT8, BASE_DEC, VALS(iuup_error_causes),0xfc,"",HFILL}},
 919         { &hf_iuup_error_distance, { "Error DISTANCE", "iuup.error_distance", FT_UINT8, BASE_DEC, VALS(iuup_error_distances),0xc0,"",HFILL}},
 920         { &hf_iuup_errorevt_cause_val, { "Error Cause", "iuup.error_cause", FT_UINT8, BASE_DEC, NULL,0x3f,"",HFILL}},
 921         { &hf_iuup_time_align, { "Time Align", "iuup.time_align", FT_UINT8, BASE_HEX, NULL,0x0,"",HFILL}},
 922         { &hf_iuup_data_pdu_type, { "RFCI Data Pdu Type", "iuup.data_pdu_type", FT_UINT8, BASE_HEX, VALS(iuup_payload_pdu_type),0xF0,"",HFILL}},
 923
 924         { &hf_iuup_spare_03, { "Spare", "iuup.spare", FT_UINT8, BASE_HEX, NULL,0x03,"",HFILL}},
 925         { &hf_iuup_spare_0f, { "Spare", "iuup.spare", FT_UINT8, BASE_HEX, NULL,0x0f,"",HFILL}},
 926         { &hf_iuup_spare_c0, { "Spare", "iuup.spare", FT_UINT8, BASE_HEX, NULL,0xc0,"",HFILL}},
 927         { &hf_iuup_spare_e0, { "Spare", "iuup.spare", FT_UINT8, BASE_HEX, NULL,0xe0,"",HFILL}},
 928         { &hf_iuup_spare_ff, { "Spare", "iuup.spare", FT_UINT8, BASE_HEX, NULL,0xff,"",HFILL}},
 929         { &hf_iuup_spare_bytes, { "Spare", "iuup.spare", FT_BYTES, BASE_HEX, NULL,0x0,"",HFILL}},
 930
 931         { &hf_iuup_delay, { "Delay", "iuup.delay", FT_UINT32, BASE_HEX, NULL,0x0,"",HFILL}},
 932         { &hf_iuup_advance, { "Advance", "iuup.advance", FT_UINT32, BASE_HEX, NULL,0x0,"",HFILL}},
 933         { &hf_iuup_delta, { "Delta Time", "iuup.delta", FT_FLOAT, BASE_DEC, NULL,0x0,"",HFILL}},
 934
 935         { &hf_iuup_init_ti, { "TI", "iuup.ti", FT_UINT8, BASE_DEC, VALS(iuup_ti_vals),0x10,"Timing Information",HFILL}},
 936         { &hf_iuup_init_subflows_per_rfci, { "Subflows", "iuup.subflows", FT_UINT8, BASE_DEC, NULL,0x0e,"Number of Subflows",HFILL}},
 937         { &hf_iuup_init_chain_ind, { "Chain Indicator", "iuup.chain_ind", FT_UINT8, BASE_DEC, VALS(iuup_init_chain_ind_vals),0x01,"",HFILL}},
 938         { &hf_iuup_payload, { "Payload Data", "iuup.payload_data", FT_BYTES, BASE_HEX, NULL,0x00,"",HFILL}},
 939
 940
 941         { &hf_iuup_mode_versions, { "Iu UP Mode Versions Supported", "iuup.support_mode", FT_UINT16, BASE_HEX, NULL,0x0,"",HFILL}},
 942
 943         { &hf_iuup_mode_versions_a[ 0], { "Version 16", "iuup.support_mode.version16", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x8000,"",HFILL}},
 944         { &hf_iuup_mode_versions_a[ 1], { "Version 15", "iuup.support_mode.version15", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x4000,"",HFILL}},
 945         { &hf_iuup_mode_versions_a[ 2], { "Version 14", "iuup.support_mode.version14", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x2000,"",HFILL}},
 946         { &hf_iuup_mode_versions_a[ 3], { "Version 13", "iuup.support_mode.version13", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x1000,"",HFILL}},
 947         { &hf_iuup_mode_versions_a[ 4], { "Version 12", "iuup.support_mode.version12", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0800,"",HFILL}},
 948         { &hf_iuup_mode_versions_a[ 5], { "Version 11", "iuup.support_mode.version11", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0400,"",HFILL}},
 949         { &hf_iuup_mode_versions_a[ 6], { "Version 10", "iuup.support_mode.version10", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0200,"",HFILL}},
 950         { &hf_iuup_mode_versions_a[ 7], { "Version  9", "iuup.support_mode.version9", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0100,"",HFILL}},
 951         { &hf_iuup_mode_versions_a[ 8], { "Version  8", "iuup.support_mode.version8", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0080,"",HFILL}},
 952         { &hf_iuup_mode_versions_a[ 9], { "Version  7", "iuup.support_mode.version7", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0040,"",HFILL}},
 953         { &hf_iuup_mode_versions_a[10], { "Version  6", "iuup.support_mode.version6", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0020,"",HFILL}},
 954         { &hf_iuup_mode_versions_a[11], { "Version  5", "iuup.support_mode.version5", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0010,"",HFILL}},
 955         { &hf_iuup_mode_versions_a[12], { "Version  4", "iuup.support_mode.version4", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0008,"",HFILL}},
 956         { &hf_iuup_mode_versions_a[13], { "Version  3", "iuup.support_mode.version3", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0004,"",HFILL}},
 957         { &hf_iuup_mode_versions_a[14], { "Version  2", "iuup.support_mode.version2", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0002,"",HFILL}},
 958         { &hf_iuup_mode_versions_a[15], { "Version  1", "iuup.support_mode.version1", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0001,"",HFILL}},
 959
 960         { &hf_iuup_num_rfci_ind, { "Number of RFCI Indicators", "iuup.p", FT_UINT8, BASE_HEX, NULL,0x3f,"",HFILL}},
 961         { &hf_iuup_init_rfci_ind, { "RFCI Initialization", "iuup.rfci.init", FT_BYTES, BASE_HEX, NULL,0x0,"",HFILL}},
 962
 963         HFS_RFCI(0),HFS_RFCI(1),HFS_RFCI(2),HFS_RFCI(3),HFS_RFCI(4),HFS_RFCI(5),HFS_RFCI(6),HFS_RFCI(7),
 964         HFS_RFCI(8),HFS_RFCI(9),HFS_RFCI(10),HFS_RFCI(11),HFS_RFCI(12),HFS_RFCI(13),HFS_RFCI(14),HFS_RFCI(15),
 965         HFS_RFCI(16),HFS_RFCI(17),HFS_RFCI(18),HFS_RFCI(19),HFS_RFCI(20),HFS_RFCI(21),HFS_RFCI(22),HFS_RFCI(23),
 966         HFS_RFCI(24),HFS_RFCI(25),HFS_RFCI(26),HFS_RFCI(27),HFS_RFCI(28),HFS_RFCI(29),HFS_RFCI(30),HFS_RFCI(31),
 967         HFS_RFCI(32),HFS_RFCI(33),HFS_RFCI(34),HFS_RFCI(35),HFS_RFCI(36),HFS_RFCI(37),HFS_RFCI(38),HFS_RFCI(39),
 968         HFS_RFCI(40),HFS_RFCI(41),HFS_RFCI(42),HFS_RFCI(43),HFS_RFCI(44),HFS_RFCI(45),HFS_RFCI(46),HFS_RFCI(47),
 969         HFS_RFCI(48),HFS_RFCI(49),HFS_RFCI(50),HFS_RFCI(51),HFS_RFCI(52),HFS_RFCI(53),HFS_RFCI(54),HFS_RFCI(55),
 970         HFS_RFCI(56),HFS_RFCI(57),HFS_RFCI(58),HFS_RFCI(59),HFS_RFCI(60),HFS_RFCI(61),HFS_RFCI(62),HFS_RFCI(63)
 971
 972     };
 973
 974
 975     gint* ett[] = {
 976         &ett_iuup,
 977         &ett_rfci,
 978         &ett_ipti,
 979         &ett_support,
 980         &ett_time,
 981         &ett_rfciinds,
 982         &ett_payload,
 983         &ett_payload_subflows
 984     };
 985
 986     module_t* iuup_module;
 987
 988
 989     proto_iuup = proto_register_protocol("IuUP", "IuUP", "iuup");
 990     proto_register_field_array(proto_iuup, hf, array_length(hf));
 991     proto_register_subtree_array(ett, array_length(ett));
 992     register_dissector("iuup", dissect_iuup, proto_iuup);
 993     register_dissector("find_iuup", find_iuup, proto_iuup);
 994
 995     register_init_routine(&init_iuup);
 996
 997     iuup_handle = create_dissector_handle(dissect_iuup, proto_iuup);
 998
 999     iuup_module = prefs_register_protocol(proto_iuup, init_iuup);
1000
1001     prefs_register_bool_preference(iuup_module, "dissect_payload",
1002                                    "Dissect IuUP Payload bits",
1003                                    "Whether IuUP Payload bits should be dissected",
1004                                    &dissect_fields);
1005
1006     prefs_register_bool_preference(iuup_module, "two_byte_pseudoheader",
1007                                    "Two byte pseudoheader",
1008                                    "The payload contains a two byte pseudoheader indicating direction and circuit_id",
1009                                    &two_byte_pseudoheader);
1010
1011     prefs_register_uint_preference(iuup_module, "dynamic.payload.type",
1012                                                                    "IuUP dynamic payload type",
1013                                                                    "The dynamic payload type which will be interpreted as IuUP",
1014                                                                    10,
1015                                                                    &temp_dynamic_payload_type);
1016 }
1017