epan/dissectors/packet-fp_hint.c

   1 /* Routines for UMTS FP Hint protocol disassembly
   2  *
   3  * $Id$
   4  *
   5  * Wireshark - Network traffic analyzer
   6  * By Gerald Combs <gerald@wireshark.org>
   7  * Copyright 1998 Gerald Combs
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License
  11  * as published by the Free Software Foundation; either version 2
  12  * of the License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  22  */
  23
  24 #ifdef HAVE_CONFIG_H
  25 #include "config.h"
  26 #endif
  27
  28 #include <stdio.h>
  29 #include <stdlib.h>
  30 #include <string.h>
  31
  32 #include <glib.h>
  33 #include <epan/packet.h>
  34 #include "packet-umts_fp.h"
  35 #include "packet-umts_mac.h"
  36 #include "packet-rlc.h"
  37 #include "wiretap/erf.h"
  38
  39 static int proto_fp_hint = -1;
  40 extern int proto_fp;
  41 extern int proto_umts_mac;
  42 extern int proto_rlc;
  43
  44 static int ett_fph = -1;
  45 static int ett_fph_rb = -1;
  46 static int ett_fph_ddi_entry = -1;
  47 static int ett_fph_tf = -1;
  48
  49 static int hf_fph_frametype = -1;
  50 static int hf_fph_channeltype = -1;
  51 static int hf_fph_chcnt = -1;
  52 static int hf_fph_dchid = -1;
  53 static int hf_fph_urnti = -1;
  54 static int hf_fph_rlcmode = -1;
  55 static int hf_fph_content = -1;
  56 static int hf_fph_rbid = -1;
  57 static int hf_fph_ctmux = -1;
  58 static int hf_fph_ciphered = -1;
  59 static int hf_fph_deciphered = -1;
  60 static int hf_fph_macdflowid = -1;
  61 static int hf_fph_rb = -1;
  62 static int hf_fph_ddi_entry = -1;
  63 static int hf_fph_ddi_size = -1;
  64 static int hf_fph_ddi_logical = -1;
  65 static int hf_fph_ddi_value = -1;
  66 static int hf_fph_tf = -1;
  67 static int hf_fph_tf_n = -1;
  68 static int hf_fph_tf_size = -1;
  69
  70 static dissector_handle_t data_handle;
  71 static dissector_handle_t ethwithfcs_handle;
  72 static dissector_handle_t atm_untrunc_handle;
  73 static dissector_handle_t erf_handle;
  74
  75 enum fph_ctype {
  76         FPH_CHANNEL_PCH,
  77         FPH_CHANNEL_RACH,
  78         FPH_CHANNEL_FACH,
  79         FPH_CHANNEL_DCH,
  80         FPH_CHANNEL_HSDSCH,
  81         FPH_CHANNEL_EDCH
  82 };
  83
  84 enum fph_frame {
  85         FPH_FRAME_ERF_AAL2,
  86         FPH_FRAME_ETHERNET
  87 };
  88
  89 enum fph_pich {
  90         FPH_PICH18,
  91         FPH_PICH36,
  92         FPH_PICH72,
  93         FPH_PICH144
  94 };
  95
  96 enum fph_content {
  97         FPH_CONTENT_UNKNOWN,
  98         FPH_CONTENT_DCCH,
  99         FPH_CONTENT_PS_DTCH,
 100         FPH_CONTENT_CS_DTCH
 101 };
 102
 103 static const value_string fph_frametype_vals[] = {
 104         { FPH_FRAME_ERF_AAL2,   "ERF AAL2" },
 105         { FPH_FRAME_ETHERNET,   "Ethernet" },
 106         { 0, NULL }
 107 };
 108
 109 static const value_string fph_channeltype_vals[] = {
 110         { FPH_CHANNEL_PCH,              "PCH" },
 111         { FPH_CHANNEL_RACH,             "RACH" },
 112         { FPH_CHANNEL_FACH,             "FACH" },
 113         { FPH_CHANNEL_DCH,              "DCH" },
 114         { FPH_CHANNEL_HSDSCH,   "HSDSCH" },
 115         { FPH_CHANNEL_EDCH,             "E-DCH" },
 116         { 0, NULL }
 117 };
 118
 119 static const value_string fph_rlcmode_vals[] = {
 120         { RLC_TM,                       "Transparent Mode" },
 121         { RLC_UM,                       "Unacknowledged Mode" },
 122         { RLC_AM,                       "Acknowledged Mode" },
 123         { 0, NULL }
 124 };
 125
 126 static const value_string fph_content_vals[] = {
 127         { FPH_CONTENT_UNKNOWN,  "Unknown" },
 128         { FPH_CONTENT_DCCH,             "DCCH" },
 129         { FPH_CONTENT_PS_DTCH,  "PS DTCH" },
 130         { FPH_CONTENT_CS_DTCH,  "PS DTCH" },
 131         { 0, NULL }
 132 };
 133
 134 static const true_false_string fph_ctmux_vals = {
 135         "C/T Mux field present", "C/T Mux field not present"
 136 };
 137
 138 static const true_false_string fph_ciphered_vals = {
 139         "Ciphered", "Not ciphered"
 140 };
 141
 142 static const true_false_string fph_deciphered_vals = {
 143         "Deciphered", "Not deciphered"
 144 };
 145
 146 static guint16 assign_rb_info(tvbuff_t *tvb, packet_info *pinfo, guint16 offset, guint8 rbcnt, proto_tree *tree)
 147 {
 148         guint8 i = 0, next_byte;
 149         guint8 rlc_mode, content, rb_id, ctmux, ciphered, deciphered;
 150         guint32 urnti;
 151         struct umts_mac_info *macinf;
 152         struct rlc_info *rlcinf;
 153
 154         macinf = p_get_proto_data(pinfo->fd, proto_umts_mac);
 155         rlcinf = p_get_proto_data(pinfo->fd, proto_rlc);
 156         if (!macinf) {
 157                 macinf = se_alloc0(sizeof(struct umts_mac_info));
 158                 p_add_proto_data(pinfo->fd, proto_umts_mac, macinf);
 159         }
 160         if (!rlcinf) {
 161                 rlcinf = se_alloc0(sizeof(struct rlc_info));
 162                 p_add_proto_data(pinfo->fd, proto_rlc, rlcinf);
 163         }
 164
 165         while (i < rbcnt) {
 166                 urnti = tvb_get_letohl(tvb, offset);
 167                 next_byte = tvb_get_guint8(tvb, offset + 4);
 168                 rlc_mode = next_byte & 0x3;
 169                 content = (next_byte >> 2) & 0x3;
 170                 rb_id = next_byte >> 4;
 171                 next_byte = tvb_get_guint8(tvb, offset + 5);
 172                 rb_id |= (next_byte & 0x01) << 4;
 173                 ctmux = (next_byte >> 1) & 0x1;
 174                 ciphered = (next_byte >> 2) & 0x1;
 175                 deciphered = (next_byte >> 3) & 0x1;
 176
 177                 if (i >= MAX_RLC_CHANS) {
 178                         proto_item *pi;
 179                         pi = proto_tree_add_text(tree, tvb, offset, -1,
 180                                 "Frame contains more Radio Bearers than currently supported (%u present, %u supported)",
 181                                 rbcnt, MAX_RLC_CHANS);
 182                         return -1;
 183                 }
 184                 if (i >= MAX_MAC_FRAMES) {
 185                         proto_item *pi;
 186                         pi = proto_tree_add_text(tree, tvb, offset, -1,
 187                                 "Frame contains more MAC Frames than currently supported (%u present, %u supported)",
 188                                 rbcnt, MAX_MAC_FRAMES);
 189                         return -1;
 190                 }
 191
 192                 rlcinf->mode[i] = rlc_mode;
 193                 rlcinf->rbid[i] = rb_id;
 194                 rlcinf->urnti[i] = urnti;
 195                 rlcinf->ciphered[i] = ciphered;
 196                 rlcinf->deciphered[i] = deciphered;
 197
 198                 macinf->ctmux[i] = ctmux ? TRUE : FALSE;
 199                 switch (content) {
 200                         case FPH_CONTENT_DCCH:
 201                                 macinf->content[i] = MAC_CONTENT_DCCH;
 202                                 break;
 203                         case FPH_CONTENT_PS_DTCH:
 204                                 macinf->content[i] = MAC_CONTENT_PS_DTCH;
 205                                 break;
 206                         case FPH_CONTENT_CS_DTCH:
 207                                 macinf->content[i] = MAC_CONTENT_CS_DTCH;
 208                                 break;
 209                         default:
 210                                 macinf->content[i] = MAC_CONTENT_UNKNOWN;
 211                 }
 212
 213                 if (tree) {
 214                         proto_tree *subtree;
 215                         proto_item *pi;
 216
 217                         pi = proto_tree_add_item(tree, hf_fph_rb, tvb, offset, 8, TRUE);
 218                         subtree = proto_item_add_subtree(pi, ett_fph_rb);
 219
 220                         if (urnti)
 221                                 proto_tree_add_uint(subtree, hf_fph_urnti, tvb, offset, 4, urnti);
 222                         pi = proto_tree_add_bits_item(subtree, hf_fph_content, tvb, (offset+4)*8+4, 2, TRUE);
 223                         pi = proto_tree_add_bits_item(subtree, hf_fph_rlcmode, tvb, (offset+4)*8+6, 2, TRUE);
 224                         proto_tree_add_item(subtree, hf_fph_rbid, tvb, (offset+4), 2, TRUE);
 225                         proto_tree_add_boolean(subtree, hf_fph_ctmux, tvb, offset+5, 1, ctmux);
 226                         proto_tree_add_boolean(subtree, hf_fph_ciphered, tvb, offset+5, 1, ciphered);
 227                         proto_tree_add_boolean(subtree, hf_fph_deciphered, tvb, offset+5, 1, deciphered);
 228                 }
 229                 offset += 8;
 230                 i++;
 231         }
 232         return offset;
 233 }
 234
 235 static void assign_fph_pch(tvbuff_t *tvb, packet_info *pinfo _U_, guint16 offset, fp_info *fpi, proto_tree *tree _U_)
 236 {
 237         guint8 pich;
 238         guint16 blkcnt, blksz;
 239         const guint8 *hdr;
 240
 241         fpi->channel = CHANNEL_PCH;
 242
 243         hdr = tvb_get_ptr(tvb, offset, 4);
 244         blkcnt = hdr[0] | ((hdr[1] & 0x01) << 8);
 245         blksz = (hdr[1] >> 1) | ((hdr[2] & 0x3f) << 7);
 246         pich = (hdr[2] >> 6) | ((hdr[3] & 0x01) << 2);
 247
 248         switch (pich) {
 249                 case FPH_PICH18:
 250                         fpi->paging_indications = 18;
 251                         break;
 252                 case FPH_PICH36:
 253                         fpi->paging_indications = 36;
 254                         break;
 255                 case FPH_PICH72:
 256                         fpi->paging_indications = 72;
 257                         break;
 258                 case FPH_PICH144:
 259                         fpi->paging_indications = 144;
 260                         break;
 261                 default:
 262                         fpi->paging_indications = 0;
 263         }
 264         fpi->num_chans = 1;
 265         fpi->chan_tf_size[0] = blksz;
 266         fpi->chan_num_tbs[0] = blkcnt;
 267 }
 268
 269 static void assign_fph_rach(tvbuff_t *tvb, packet_info *pinfo _U_, guint16 offset, fp_info *fpi, proto_tree *tree)
 270 {
 271         const guint8 *hdr;
 272         guint8 rbcnt;
 273         guint16 blkcnt, blksz;
 274
 275         fpi->channel = CHANNEL_RACH_FDD;
 276
 277         hdr = tvb_get_ptr(tvb, offset, 4);
 278         blkcnt = hdr[0] | ((hdr[1] & 0x01) << 8);
 279         blksz = (hdr[1] >> 1) | ((hdr[2] & 0x3f) << 7);
 280
 281         fpi->num_chans = 1;
 282         fpi->chan_tf_size[0] = blksz;
 283         fpi->chan_num_tbs[0] = blkcnt;
 284
 285         offset += 4;
 286         rbcnt = tvb_get_guint8(tvb, offset); offset++;
 287         if (rbcnt > 0)
 288                 offset = assign_rb_info(tvb, pinfo, offset, rbcnt, tree);
 289 }
 290
 291 static void assign_fph_dch(tvbuff_t *tvb, packet_info *pinfo, guint16 offset, fp_info *fpi, proto_tree *tree)
 292 {
 293         guint8 dch_id, rbcnt;
 294         guint16 N, size;
 295         guint32 cnt, i = 0;
 296         const guint8 *hdr;
 297         proto_tree *subtree;
 298         proto_item *pi;
 299
 300         fpi->channel = CHANNEL_DCH;
 301         cnt = tvb_get_guint8(tvb, offset); offset++;
 302
 303         if (tree)
 304                 proto_tree_add_uint(tree, hf_fph_chcnt, tvb, offset-1, 1, cnt);
 305
 306         fpi->num_chans = cnt;
 307         fpi->dch_crc_present = 1;
 308         while (i < cnt) {
 309                 pi = proto_tree_add_item(tree, hf_fph_tf, tvb, offset, 4, TRUE);
 310                 subtree = proto_item_add_subtree(pi, ett_fph_rb);
 311                 hdr = tvb_get_ptr(tvb, offset, 4);
 312                 dch_id = hdr[0] & 0x1f;
 313
 314                 N = ((hdr[1] & 0x3f)<<3) | (hdr[0] >> 5);
 315                 size = ((hdr[3] & 0x07)<<10) | (hdr[2] << 2) | ((hdr[1] & 0xc0)>>6);
 316                 size = size == 0x1fff ? 0 : size;
 317
 318                 fpi->chan_tf_size[i] = size;
 319                 fpi->chan_num_tbs[i] = N;
 320
 321                 if (subtree) {
 322                         proto_tree_add_bits_item(subtree, hf_fph_dchid, tvb, offset*8+3, 5, TRUE);
 323                         proto_tree_add_uint(subtree, hf_fph_tf_n, tvb, offset, 2, N);
 324                         if (size)
 325                                 proto_tree_add_uint(subtree, hf_fph_tf_size, tvb, offset + 1, 3, size);
 326                 }
 327                 offset += 4;
 328                 if (i > MAX_FP_CHANS) {
 329                         proto_item *pi;
 330                         pi = proto_tree_add_text(tree, tvb, offset, -1,
 331                                 "Frame contains more FP channels than currently supported (%u supported)",
 332                                 MAX_FP_CHANS);
 333                         return;
 334                 }
 335                 i++;
 336         }
 337         rbcnt = tvb_get_guint8(tvb, offset); offset++;
 338         if (rbcnt > 0)
 339                 offset = assign_rb_info(tvb, pinfo, offset, rbcnt, tree);
 340 }
 341
 342 static void assign_fph_fach(tvbuff_t *tvb, packet_info *pinfo, guint16 offset, fp_info *fpi, proto_tree *tree)
 343 {
 344         const guint8 *hdr;
 345         guint8 rbcnt;
 346         guint16 blkcnt, blksz;
 347
 348         fpi->channel = CHANNEL_FACH_FDD;
 349
 350         hdr = tvb_get_ptr(tvb, offset, 4);
 351         blkcnt = hdr[0] | ((hdr[1] & 0x01) << 8);
 352         blksz = (hdr[1] >> 1) | ((hdr[2] & 0x3f) << 7);
 353
 354         fpi->num_chans = 1;
 355         fpi->chan_tf_size[0] = blksz;
 356         fpi->chan_num_tbs[0] = blkcnt;
 357
 358         offset += 4;
 359         rbcnt = tvb_get_guint8(tvb, offset); offset++;
 360         if (rbcnt > 0)
 361                 offset = assign_rb_info(tvb, pinfo, offset, rbcnt, tree);
 362 }
 363
 364 static void assign_fph_hsdsch(tvbuff_t *tvb, packet_info *pinfo, guint16 offset, fp_info *fpi, proto_tree *tree)
 365 {
 366         guint8 rbcnt, macdflow_id;
 367
 368         fpi->channel = CHANNEL_HSDSCH;
 369         macdflow_id = tvb_get_guint8(tvb, offset);
 370
 371         if (tree)
 372                 proto_tree_add_uint(tree, hf_fph_macdflowid, tvb, offset, 1, macdflow_id);
 373
 374         offset++;
 375         rbcnt = tvb_get_guint8(tvb, offset); offset++;
 376         if (rbcnt > 0)
 377                 offset = assign_rb_info(tvb, pinfo, offset, rbcnt, tree);
 378 }
 379
 380 static void assign_fph_edch(tvbuff_t *tvb, packet_info *pinfo, guint16 offset, fp_info *fpi, proto_tree *tree)
 381 {
 382         guint8 rbcnt, macdflow_id, maces_cnt, i = 0;
 383         guint8 logical, ddi;
 384         guint16 maces_size;
 385         proto_item *pi;
 386         proto_tree *subtree = NULL;
 387
 388         fpi->channel = CHANNEL_EDCH;
 389         macdflow_id = tvb_get_guint8(tvb, offset);
 390
 391         if (tree) {
 392                 proto_tree_add_uint(tree, hf_fph_macdflowid, tvb, offset, 1, macdflow_id);
 393         }
 394
 395         offset++;
 396         maces_cnt = tvb_get_guint8(tvb, offset); offset++;
 397
 398         fpi->no_ddi_entries = maces_cnt;
 399         while (i < maces_cnt) {
 400                 ddi = tvb_get_guint8(tvb, offset++);
 401                 logical = tvb_get_guint8(tvb, offset++);
 402                 maces_size = tvb_get_letohs(tvb, offset);
 403                 offset += 2;
 404                 fpi->edch_ddi[i] = ddi;
 405                 fpi->edch_macd_pdu_size[i] = maces_size;
 406                 if (tree) {
 407                         pi = proto_tree_add_item(tree, hf_fph_ddi_entry, tvb, offset - 4, 4, TRUE);
 408                         subtree = proto_item_add_subtree(pi, ett_fph_ddi_entry);
 409                         proto_tree_add_uint(subtree, hf_fph_ddi_value, tvb, offset - 4, 1, ddi);
 410                         proto_tree_add_uint(subtree, hf_fph_ddi_logical, tvb, offset - 3, 1, logical);
 411                         proto_tree_add_uint(subtree, hf_fph_ddi_size, tvb, offset - 2, 2, maces_size);
 412                 }
 413                 i++;
 414                 if (i >= MAX_EDCH_DDIS) {
 415                         proto_item *pi;
 416                         pi = proto_tree_add_text(tree, tvb, offset, -1,
 417                                 "Frame contains more FP channels than currently supported (%u supported)",
 418                                 MAX_FP_CHANS);
 419                         return;
 420                 }
 421         }
 422
 423
 424         rbcnt = tvb_get_guint8(tvb, offset); offset++;
 425         if (rbcnt > 0)
 426                 offset = assign_rb_info(tvb, pinfo, offset, rbcnt, tree);
 427 }
 428
 429 static void attach_info(tvbuff_t *tvb, packet_info *pinfo, guint16 offset, guint8 channel_type, guint8 frame_type, proto_tree *tree)
 430 {
 431         fp_info *fpi;
 432
 433         fpi = p_get_proto_data(pinfo->fd, proto_fp);
 434         if (!fpi) {
 435                 fpi = se_alloc0(sizeof(fp_info));
 436                 p_add_proto_data(pinfo->fd, proto_fp, fpi);
 437         }
 438
 439         fpi->is_uplink = pinfo->p2p_dir == P2P_DIR_RECV;
 440         /* TODO make this configurable */
 441         fpi->release = 6;
 442         fpi->release_year = 2006;
 443         fpi->release_month = 9;
 444         fpi->dch_crc_present = 1;
 445
 446         switch (frame_type) {
 447                 case FPH_FRAME_ERF_AAL2:
 448                         fpi->link_type = FP_Link_ATM;
 449                         break;
 450                 case FPH_FRAME_ETHERNET:
 451                         fpi->link_type = FP_Link_Ethernet;
 452                         break;
 453                 default:
 454                         fpi->link_type = FP_Link_Unknown;
 455         }
 456
 457         /* at the moment, only IuB is supported */
 458         fpi->iface_type = IuB_Interface;
 459         /* at the moment, only FDD is supported */
 460         fpi->division = Division_FDD;
 461
 462         switch (channel_type) {
 463                 case FPH_CHANNEL_PCH:
 464                         assign_fph_pch(tvb, pinfo, offset, fpi, tree);
 465                         break;
 466                 case FPH_CHANNEL_RACH:
 467                         assign_fph_rach(tvb, pinfo, offset, fpi, tree);
 468                         break;
 469                 case FPH_CHANNEL_FACH:
 470                         assign_fph_fach(tvb, pinfo, offset, fpi, tree);
 471                         break;
 472                 case FPH_CHANNEL_DCH:
 473                         assign_fph_dch(tvb, pinfo, offset, fpi, tree);
 474                         break;
 475                 case FPH_CHANNEL_HSDSCH:
 476                         assign_fph_hsdsch(tvb, pinfo, offset, fpi, tree);
 477                         break;
 478                 case FPH_CHANNEL_EDCH:
 479                         assign_fph_edch(tvb, pinfo, offset, fpi, tree);
 480                         break;
 481                 default:
 482                         fpi->channel = 0;
 483         }
 484 }
 485
 486 static void dissect_fp_hint(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
 487 {
 488         guint8 frame_type, channel_type;
 489         guint16 hdrlen;
 490 #if 0
 491         guint32 atm_aal2_ext, atm_hdr;
 492 #endif
 493         tvbuff_t *next_tvb;
 494         dissector_handle_t *next_dissector;
 495         proto_item *ti;
 496         proto_tree *fph_tree = NULL;
 497
 498         if (check_col(pinfo->cinfo, COL_PROTOCOL))
 499                 col_set_str(pinfo->cinfo, COL_PROTOCOL, "FP Hint");
 500
 501         hdrlen = tvb_get_letohs(tvb, 0);
 502         frame_type = tvb_get_guint8(tvb, 2);
 503         channel_type = tvb_get_guint8(tvb, 3);
 504
 505         if (tree) {
 506                 ti = proto_tree_add_item(tree, proto_fp_hint, tvb, 0, hdrlen, TRUE);
 507                 fph_tree = proto_item_add_subtree(ti, ett_fph);
 508                 proto_tree_add_uint(fph_tree, hf_fph_frametype, tvb, 2, 1, frame_type);
 509                 proto_tree_add_uint(fph_tree, hf_fph_channeltype, tvb, 3, 1, channel_type);
 510         }
 511
 512         /* attach FP, MAC, RLC information */
 513         attach_info(tvb, pinfo, 4, channel_type, frame_type, fph_tree);
 514         switch (frame_type) {
 515                 case FPH_FRAME_ERF_AAL2:
 516                         memset(&pinfo->pseudo_header->erf, 0, sizeof(pinfo->pseudo_header->erf));
 517                         pinfo->pseudo_header->erf.phdr.type = ERF_TYPE_AAL2;
 518                         /* store p2p direction in ERF flags */
 519                         pinfo->pseudo_header->erf.phdr.flags |= pinfo->p2p_dir;
 520                         /* set ATM properties */
 521                         pinfo->pseudo_header->atm.type = TRAF_UMTS_FP;
 522                         pinfo->pseudo_header->atm.subtype = TRAF_UNKNOWN;
 523                         next_dissector = &erf_handle;
 524                         break;
 525                 case FPH_FRAME_ETHERNET:
 526                         next_dissector = &ethwithfcs_handle;
 527                         break;
 528                 default:
 529                         next_dissector = &data_handle;
 530         }
 531
 532         next_tvb = tvb_new_subset(tvb, hdrlen, -1, -1);
 533         call_dissector(*next_dissector, next_tvb, pinfo, tree);
 534 }
 535
 536 void
 537 proto_register_fp_hint(void)
 538 {
 539         static hf_register_info hf[] = {
 540                 { &hf_fph_frametype, { "Frame Type", "fp_hint.frame_type", FT_UINT8, BASE_HEX, VALS(fph_frametype_vals), 0x0, "Frame Type", HFILL } },
 541                 { &hf_fph_channeltype, { "Channel Type", "fp_hint.channel_type", FT_UINT8, BASE_HEX, VALS(fph_channeltype_vals), 0x0, "Channel Type", HFILL } },
 542                 { &hf_fph_chcnt, { "Number of Channels", "fp_hint.num_chan", FT_UINT8, BASE_DEC, NULL, 0, "Number of Channels", HFILL } },
 543                 { &hf_fph_dchid, { "DCH ID", "fp_hint.dchid", FT_UINT8, BASE_DEC, NULL, 0, "DCH ID", HFILL } },
 544                 { &hf_fph_macdflowid, { "MACd Flow ID", "fp_hint.macdflowid", FT_UINT8, BASE_DEC, NULL, 0, "MACd Flow ID", HFILL } },
 545                 /* traffic format details */
 546                 { &hf_fph_tf, { "Traffic Format", "fp_hint.tf", FT_NONE, BASE_NONE, NULL, 0, "", HFILL } },
 547                 { &hf_fph_tf_n, { "N", "fp_hint.tf.n", FT_UINT16, BASE_DEC, NULL, 0, "", HFILL } },
 548                 { &hf_fph_tf_size, { "Size", "fp_hintf.tf.size", FT_UINT32, BASE_DEC, NULL, 0, "", HFILL } },
 549                 /* DDI information for E-DCH */
 550                 { &hf_fph_ddi_entry, { "DDI Entry", "fp_hint.ddi", FT_NONE, BASE_NONE, NULL, 0, "", HFILL } },
 551                 { &hf_fph_ddi_value, { "DDI", "fp_hint.ddi.value", FT_UINT8, BASE_DEC, NULL, 0, "", HFILL } },
 552                 { &hf_fph_ddi_logical, { "Logical Channel ID", "fp_hint.ddi.logical", FT_UINT8, BASE_DEC, NULL, 0, "", HFILL } },
 553                 { &hf_fph_ddi_size, { "Size", "fp_hint.ddi.size", FT_UINT16, BASE_DEC, NULL, 0, "", HFILL } },
 554                 /* radio bearer details */
 555                 { &hf_fph_rb, { "Radio Bearer", "fp_hint.rb", FT_NONE, BASE_NONE, NULL, 0, "", HFILL } },
 556                 { &hf_fph_urnti, { "U-RNTI", "fp_hint.rb.urnti", FT_UINT32, BASE_HEX, NULL, 0x0, "U-RNTI", HFILL } },
 557                 { &hf_fph_content, { "Content", "fp_hint.rb.content", FT_UINT8, BASE_DEC, VALS(fph_content_vals), 0, "Content", HFILL } },
 558                 { &hf_fph_rlcmode, { "RLC Mode", "fp_hint.rb.rlc_mode", FT_UINT8, BASE_DEC, VALS(fph_rlcmode_vals), 0, "RLC Mode", HFILL } },
 559                 { &hf_fph_rbid, { "Radio Bearer ID", "fp_hint.rb.rbid", FT_UINT16, BASE_DEC, NULL, 0x01f0, "Radio Bearer ID", HFILL } },
 560                 { &hf_fph_ctmux, { "C/T Mux", "fp_hint.rb.ctmux", FT_BOOLEAN, BASE_NONE, TFS(&fph_ctmux_vals), 0, "C/T Mux field", HFILL } },
 561                 { &hf_fph_ciphered, { "Ciphered", "fp_hint.rb.ciphered", FT_BOOLEAN, BASE_NONE, TFS(&fph_ciphered_vals), 0, "Ciphered flag", HFILL } },
 562                 { &hf_fph_deciphered, { "Deciphered", "fp_hint.rb.deciphered", FT_BOOLEAN, BASE_NONE, TFS(&fph_deciphered_vals), 0, "Deciphered flag", HFILL } }
 563         };
 564
 565         static gint *ett[] = {
 566                 &ett_fph,
 567                 &ett_fph_rb,
 568                 &ett_fph_ddi_entry,
 569                 &ett_fph_tf
 570         };
 571
 572         proto_fp_hint = proto_register_protocol("FP Hint", "FP Hint", "fp_hint");
 573         register_dissector("fp_hint", dissect_fp_hint, proto_fp_hint);
 574
 575         proto_register_field_array(proto_fp_hint, hf, array_length(hf));
 576         proto_register_subtree_array(ett, array_length(ett));
 577 }
 578
 579 void
 580 proto_reg_handoff_fp_hint(void)
 581 {
 582         atm_untrunc_handle = find_dissector("atm_untruncated");
 583         data_handle = find_dissector("data");
 584         ethwithfcs_handle = find_dissector("eth_withfcs");
 585         erf_handle = find_dissector("erf");
 586 }