epan/dissectors/packet-fp_hint.c

   1 /* Routines for UMTS FP Hint protocol disassembly
   2  *
   3  * Wireshark - Network traffic analyzer
   4  * By Gerald Combs <gerald@wireshark.org>
   5  * Copyright 1998 Gerald Combs
   6  *
   7  * SPDX-License-Identifier: GPL-2.0-or-later
   8  */
   9
  10 #include "config.h"
  11
  12
  13 #include <epan/packet.h>
  14 #include <wiretap/wtap.h>
  15 #include <epan/conversation.h>
  16 #include <epan/expert.h>
  17 #include <epan/proto_data.h>
  18 #include "packet-umts_fp.h"
  19 #include "packet-umts_mac.h"
  20 #include "packet-umts_rlc.h"
  21
  22 void proto_register_fp_hint(void);
  23 void proto_reg_handoff_fp_hint(void);
  24
  25 static int proto_fp_hint = -1;
  26 extern int proto_fp;
  27 extern int proto_umts_mac;
  28 extern int proto_umts_rlc;
  29
  30 static int ett_fph = -1;
  31 static int ett_fph_rb = -1;
  32 static int ett_fph_ddi_entry = -1;
  33 static int ett_fph_tf = -1;
  34
  35 static int hf_fph_frametype = -1;
  36 static int hf_fph_channeltype = -1;
  37 static int hf_fph_chcnt = -1;
  38 static int hf_fph_dchid = -1;
  39 static int hf_fph_urnti = -1;
  40 static int hf_fph_rlcmode = -1;
  41 static int hf_fph_content = -1;
  42 static int hf_fph_rbid = -1;
  43 static int hf_fph_ctmux = -1;
  44 static int hf_fph_ciphered = -1;
  45 static int hf_fph_deciphered = -1;
  46 static int hf_fph_macdflowid = -1;
  47 static int hf_fph_macehs = -1;
  48 static int hf_fph_rb = -1;
  49 static int hf_fph_ddi_entry = -1;
  50 static int hf_fph_ddi_size = -1;
  51 static int hf_fph_ddi_logical = -1;
  52 static int hf_fph_ddi_value = -1;
  53 static int hf_fph_tf = -1;
  54 static int hf_fph_tf_n = -1;
  55 static int hf_fph_tf_size = -1;
  56
  57 static expert_field ei_fph_radio_bearers = EI_INIT;
  58 static expert_field ei_fph_mac_frames = EI_INIT;
  59 static expert_field ei_fph_fp_channels = EI_INIT;
  60
  61 static dissector_handle_t data_handle;
  62 static dissector_handle_t ethwithfcs_handle;
  63 static dissector_handle_t atm_untrunc_handle;
  64
  65 enum fph_ctype {
  66     FPH_CHANNEL_PCH,
  67     FPH_CHANNEL_RACH,
  68     FPH_CHANNEL_FACH,
  69     FPH_CHANNEL_DCH,
  70     FPH_CHANNEL_HSDSCH,
  71     FPH_CHANNEL_EDCH
  72 };
  73
  74 enum fph_frame {
  75     FPH_FRAME_ATM_AAL2,
  76     FPH_FRAME_ETHERNET
  77 };
  78
  79 enum fph_pich {
  80     FPH_PICH18,
  81     FPH_PICH36,
  82     FPH_PICH72,
  83     FPH_PICH144
  84 };
  85
  86 enum fph_content {
  87     FPH_CONTENT_UNKNOWN,
  88     FPH_CONTENT_DCCH,
  89     FPH_CONTENT_PS_DTCH,
  90     FPH_CONTENT_CS_DTCH
  91 };
  92
  93 static const value_string fph_frametype_vals[] = {
  94     { FPH_FRAME_ATM_AAL2,   "ATM AAL2" },
  95     { FPH_FRAME_ETHERNET,   "Ethernet" },
  96     { 0, NULL }
  97 };
  98
  99 static const value_string fph_channeltype_vals[] = {
 100     { FPH_CHANNEL_PCH,      "PCH" },
 101     { FPH_CHANNEL_RACH,     "RACH" },
 102     { FPH_CHANNEL_FACH,     "FACH" },
 103     { FPH_CHANNEL_DCH,      "DCH" },
 104     { FPH_CHANNEL_HSDSCH,   "HSDSCH" },
 105     { FPH_CHANNEL_EDCH,     "E-DCH" },
 106     { 0, NULL }
 107 };
 108
 109 static const value_string fph_rlcmode_vals[] = {
 110     { RLC_TM,           "Transparent Mode" },
 111     { RLC_UM,           "Unacknowledged Mode" },
 112     { RLC_AM,           "Acknowledged Mode" },
 113     { 0, NULL }
 114 };
 115
 116 static const value_string fph_content_vals[] = {
 117     { FPH_CONTENT_UNKNOWN,  "Unknown" },
 118     { FPH_CONTENT_DCCH,     "DCCH" },
 119     { FPH_CONTENT_PS_DTCH,  "PS DTCH" },
 120     { FPH_CONTENT_CS_DTCH,  "PS DTCH" },
 121     { 0, NULL }
 122 };
 123
 124 static const true_false_string fph_ctmux_vals = {
 125     "C/T Mux field present", "C/T Mux field not present"
 126 };
 127
 128 static const true_false_string fph_ciphered_vals = {
 129     "Ciphered", "Not ciphered"
 130 };
 131
 132 static const true_false_string fph_deciphered_vals = {
 133     "Deciphered", "Not deciphered"
 134 };
 135
 136 static guint16 assign_rb_info(tvbuff_t *tvb, packet_info *pinfo, guint16 offset, guint8 rbcnt, proto_tree *tree)
 137 {
 138     guint8 i = 0, next_byte;
 139     guint8 rlc_mode, content, rb_id, ctmux, ciphered, deciphered;
 140     guint32 urnti;
 141     struct umts_mac_info *macinf;
 142     struct rlc_info *rlcinf;
 143
 144     macinf = (umts_mac_info *)p_get_proto_data(wmem_file_scope(), pinfo, proto_umts_mac, 0);
 145     rlcinf = (rlc_info *)p_get_proto_data(wmem_file_scope(), pinfo, proto_umts_rlc, 0);
 146     if (!macinf) {
 147         macinf = wmem_new0(wmem_file_scope(), struct umts_mac_info);
 148         p_add_proto_data(wmem_file_scope(), pinfo, proto_umts_mac, 0, macinf);
 149     }
 150     if (!rlcinf) {
 151         rlcinf = wmem_new0(wmem_file_scope(), struct rlc_info);
 152         p_add_proto_data(wmem_file_scope(), pinfo, proto_umts_rlc, 0, rlcinf);
 153     }
 154
 155     while (i < rbcnt) {
 156         urnti = tvb_get_letohl(tvb, offset);
 157         next_byte = tvb_get_guint8(tvb, offset + 4);
 158         rlc_mode = next_byte & 0x3;
 159         content = (next_byte >> 2) & 0x3;
 160         rb_id = next_byte >> 4;
 161         next_byte = tvb_get_guint8(tvb, offset + 5);
 162         rb_id |= (next_byte & 0x01) << 4;
 163         ctmux = (next_byte >> 1) & 0x1;
 164         ciphered = (next_byte >> 2) & 0x1;
 165         deciphered = (next_byte >> 3) & 0x1;
 166
 167         if (i >= MAX_RLC_CHANS) {
 168             proto_tree_add_expert_format(tree, pinfo, &ei_fph_radio_bearers, tvb, offset, -1,
 169                 "Frame contains more Radio Bearers than currently supported (%u present, %u supported)",
 170                 rbcnt, MAX_RLC_CHANS);
 171             return -1;
 172         }
 173         if (i >= MAX_MAC_FRAMES) {
 174             proto_tree_add_expert_format(tree, pinfo, &ei_fph_mac_frames, tvb, offset, -1,
 175                 "Frame contains more MAC Frames than currently supported (%u present, %u supported)",
 176                 rbcnt, MAX_MAC_FRAMES);
 177             return -1;
 178         }
 179
 180         rlcinf->mode[i] = rlc_mode;
 181         rlcinf->rbid[i] = rb_id;
 182         rlcinf->ueid[i] = urnti;
 183         rlcinf->ciphered[i] = ciphered;
 184         rlcinf->deciphered[i] = deciphered;
 185         rlcinf->li_size[i] = RLC_LI_VARIABLE;
 186
 187         macinf->ctmux[i] = ctmux ? TRUE : FALSE;
 188         switch (content) {
 189             case FPH_CONTENT_DCCH:
 190                 macinf->content[i] = MAC_CONTENT_DCCH;
 191                 break;
 192             case FPH_CONTENT_PS_DTCH:
 193                 macinf->content[i] = MAC_CONTENT_PS_DTCH;
 194                 break;
 195             case FPH_CONTENT_CS_DTCH:
 196                 macinf->content[i] = MAC_CONTENT_CS_DTCH;
 197                 break;
 198             default:
 199                 macinf->content[i] = MAC_CONTENT_UNKNOWN;
 200         }
 201
 202         if (tree) {
 203             proto_tree *subtree;
 204             proto_item *pi;
 205
 206             pi = proto_tree_add_item(tree, hf_fph_rb, tvb, offset, 8, ENC_NA);
 207             subtree = proto_item_add_subtree(pi, ett_fph_rb);
 208
 209             if (urnti)
 210                 proto_tree_add_uint(subtree, hf_fph_urnti, tvb, offset, 4, urnti);
 211             proto_tree_add_bits_item(subtree, hf_fph_content, tvb, (offset+4)*8+4, 2, ENC_LITTLE_ENDIAN);
 212             proto_tree_add_bits_item(subtree, hf_fph_rlcmode, tvb, (offset+4)*8+6, 2, ENC_LITTLE_ENDIAN);
 213             proto_tree_add_item(subtree, hf_fph_rbid, tvb, (offset+4), 2, ENC_LITTLE_ENDIAN);
 214             proto_tree_add_boolean(subtree, hf_fph_ctmux, tvb, offset+5, 1, ctmux);
 215             proto_tree_add_boolean(subtree, hf_fph_ciphered, tvb, offset+5, 1, ciphered);
 216             proto_tree_add_boolean(subtree, hf_fph_deciphered, tvb, offset+5, 1, deciphered);
 217         }
 218         offset += 8;
 219         i++;
 220     }
 221     return offset;
 222 }
 223
 224 static void assign_fph_pch(tvbuff_t *tvb, packet_info *pinfo _U_, guint16 offset, fp_info *fpi, proto_tree *tree _U_)
 225 {
 226     guint8 pich;
 227     guint16 blkcnt, blksz;
 228     const guint8 *hdr;
 229
 230     fpi->channel = CHANNEL_PCH;
 231
 232     hdr = tvb_get_ptr(tvb, offset, 4);
 233     blkcnt = hdr[0] | ((hdr[1] & 0x01) << 8);
 234     blksz = (hdr[1] >> 1) | ((hdr[2] & 0x3f) << 7);
 235     pich = (hdr[2] >> 6) | ((hdr[3] & 0x01) << 2);
 236
 237     switch (pich) {
 238         case FPH_PICH18:
 239             fpi->paging_indications = 18;
 240             break;
 241         case FPH_PICH36:
 242             fpi->paging_indications = 36;
 243             break;
 244         case FPH_PICH72:
 245             fpi->paging_indications = 72;
 246             break;
 247         case FPH_PICH144:
 248             fpi->paging_indications = 144;
 249             break;
 250         default:
 251             fpi->paging_indications = 0;
 252     }
 253     fpi->num_chans = 1;
 254     fpi->chan_tf_size[0] = blksz;
 255     fpi->chan_num_tbs[0] = blkcnt;
 256 }
 257
 258 static void assign_fph_rach(tvbuff_t *tvb, packet_info *pinfo, guint16 offset, fp_info *fpi, proto_tree *tree)
 259 {
 260     const guint8 *hdr;
 261     guint8 rbcnt;
 262     guint16 blkcnt, blksz;
 263
 264     fpi->channel = CHANNEL_RACH_FDD;
 265
 266     hdr = tvb_get_ptr(tvb, offset, 4);
 267     blkcnt = hdr[0] | ((hdr[1] & 0x01) << 8);
 268     blksz = (hdr[1] >> 1) | ((hdr[2] & 0x3f) << 7);
 269
 270     fpi->num_chans = 1;
 271     fpi->chan_tf_size[0] = blksz;
 272     fpi->chan_num_tbs[0] = blkcnt;
 273
 274     offset += 4;
 275     rbcnt = tvb_get_guint8(tvb, offset); offset++;
 276     if (rbcnt > 0)
 277         /*offset =*/ assign_rb_info(tvb, pinfo, offset, rbcnt, tree);
 278 }
 279
 280 static void assign_fph_dch(tvbuff_t *tvb, packet_info *pinfo, guint16 offset, fp_info *fpi, proto_tree *tree)
 281 {
 282     guint8 dch_id, rbcnt;
 283     guint16 N, size;
 284     guint32 cnt, i = 0;
 285     const guint8 *hdr;
 286     proto_tree *subtree;
 287     proto_item *pi;
 288
 289     fpi->channel = CHANNEL_DCH;
 290     cnt = tvb_get_guint8(tvb, offset); offset++;
 291
 292     if (tree)
 293         proto_tree_add_uint(tree, hf_fph_chcnt, tvb, offset-1, 1, cnt);
 294
 295     fpi->num_chans = cnt;
 296     fpi->dch_crc_present = 1;
 297     while (i < cnt) {
 298         pi = proto_tree_add_item(tree, hf_fph_tf, tvb, offset, 4, ENC_NA);
 299         subtree = proto_item_add_subtree(pi, ett_fph_rb);
 300         hdr = tvb_get_ptr(tvb, offset, 4);
 301         dch_id = (hdr[0] & 0x1f) + 1;
 302
 303         N = ((hdr[1] & 0x3f)<<3) | (hdr[0] >> 5);
 304         size = ((hdr[3] & 0x07)<<10) | (hdr[2] << 2) | ((hdr[1] & 0xc0)>>6);
 305         size = size == 0x1fff ? 0 : size;
 306
 307         fpi->chan_tf_size[i] = size;
 308         fpi->chan_num_tbs[i] = N;
 309
 310         if (subtree) {
 311             proto_tree_add_uint(subtree, hf_fph_dchid, tvb, offset, 1, dch_id);
 312             proto_tree_add_uint(subtree, hf_fph_tf_n, tvb, offset, 2, N);
 313             if (size)
 314                 proto_tree_add_uint(subtree, hf_fph_tf_size, tvb, offset + 1, 3, size);
 315         }
 316         offset += 4;
 317         if (i > MAX_FP_CHANS) {
 318             proto_tree_add_expert_format(tree, pinfo, &ei_fph_fp_channels, tvb, offset, -1,
 319                 "Frame contains more FP channels than currently supported (%u supported)",
 320                 MAX_FP_CHANS);
 321             return;
 322         }
 323         i++;
 324     }
 325     rbcnt = tvb_get_guint8(tvb, offset); offset++;
 326     if (rbcnt > 0)
 327         /*offset =*/ assign_rb_info(tvb, pinfo, offset, rbcnt, tree);
 328 }
 329
 330 static void assign_fph_fach(tvbuff_t *tvb, packet_info *pinfo, guint16 offset, fp_info *fpi, proto_tree *tree)
 331 {
 332     const guint8 *hdr;
 333     guint8 rbcnt;
 334     guint16 blkcnt, blksz;
 335
 336     fpi->channel = CHANNEL_FACH_FDD;
 337
 338     hdr = tvb_get_ptr(tvb, offset, 4);
 339     blkcnt = hdr[0] | ((hdr[1] & 0x01) << 8);
 340     blksz = (hdr[1] >> 1) | ((hdr[2] & 0x3f) << 7);
 341
 342     fpi->num_chans = 1;
 343     fpi->chan_tf_size[0] = blksz;
 344     fpi->chan_num_tbs[0] = blkcnt;
 345
 346     offset += 4;
 347     rbcnt = tvb_get_guint8(tvb, offset); offset++;
 348     if (rbcnt > 0)
 349         /*offset =*/ assign_rb_info(tvb, pinfo, offset, rbcnt, tree);
 350 }
 351
 352 static void assign_fph_hsdsch(tvbuff_t *tvb, packet_info *pinfo, guint16 offset, fp_info *fpi, proto_tree *tree)
 353 {
 354     guint8 rbcnt, hsdsch_info;
 355
 356     hsdsch_info = tvb_get_guint8(tvb, offset);
 357     fpi->hsdsch_entity = hsdsch_info & 0x08 ? ehs : hs;
 358     fpi->channel = CHANNEL_HSDSCH;
 359
 360     if (tree) {
 361         proto_tree_add_bits_item(tree, hf_fph_macehs, tvb,
 362             offset*8+4, 1, ENC_LITTLE_ENDIAN);
 363         proto_tree_add_bits_item(tree, hf_fph_macdflowid, tvb,
 364             offset*8+5, 3, ENC_LITTLE_ENDIAN);
 365     }
 366
 367     offset++;
 368     rbcnt = tvb_get_guint8(tvb, offset); offset++;
 369     if (rbcnt > 0)
 370         /*offset =*/ assign_rb_info(tvb, pinfo, offset, rbcnt, tree);
 371 }
 372
 373 static void assign_fph_edch(tvbuff_t *tvb, packet_info *pinfo, guint16 offset, fp_info *fpi, proto_tree *tree)
 374 {
 375     guint8 rbcnt, macdflow_id, maces_cnt, i = 0;
 376     guint8 logical, ddi;
 377     guint16 maces_size;
 378     proto_item *pi;
 379     proto_tree *subtree = NULL;
 380
 381     fpi->channel = CHANNEL_EDCH;
 382     macdflow_id = tvb_get_guint8(tvb, offset);
 383
 384     if (tree) {
 385         proto_tree_add_uint(tree, hf_fph_macdflowid, tvb, offset, 1, macdflow_id);
 386     }
 387
 388     offset++;
 389     maces_cnt = tvb_get_guint8(tvb, offset); offset++;
 390
 391     fpi->no_ddi_entries = maces_cnt;
 392     while (i < maces_cnt) {
 393         ddi = tvb_get_guint8(tvb, offset++);
 394         logical = tvb_get_guint8(tvb, offset++);
 395         maces_size = tvb_get_letohs(tvb, offset);
 396         offset += 2;
 397         fpi->edch_ddi[i] = ddi;
 398         fpi->edch_macd_pdu_size[i] = maces_size;
 399         if (tree) {
 400             pi = proto_tree_add_item(tree, hf_fph_ddi_entry, tvb, offset - 4, 4, ENC_NA);
 401             subtree = proto_item_add_subtree(pi, ett_fph_ddi_entry);
 402             proto_tree_add_uint(subtree, hf_fph_ddi_value, tvb, offset - 4, 1, ddi);
 403             proto_tree_add_uint(subtree, hf_fph_ddi_logical, tvb, offset - 3, 1, logical);
 404             proto_tree_add_uint(subtree, hf_fph_ddi_size, tvb, offset - 2, 2, maces_size);
 405         }
 406         i++;
 407         if (i >= MAX_EDCH_DDIS) {
 408             proto_tree_add_expert_format(tree, pinfo, &ei_fph_fp_channels, tvb, offset, -1,
 409                 "Frame contains more FP channels than currently supported (%u supported)",
 410                 MAX_FP_CHANS);
 411             return;
 412         }
 413     }
 414
 415
 416     rbcnt = tvb_get_guint8(tvb, offset); offset++;
 417     if (rbcnt > 0)
 418         /*offset =*/ assign_rb_info(tvb, pinfo, offset, rbcnt, tree);
 419 }
 420
 421 static void attach_info(tvbuff_t *tvb, packet_info *pinfo, guint16 offset, guint8 channel_type, guint8 frame_type, proto_tree *tree)
 422 {
 423     fp_info *fpi;
 424
 425     fpi = (fp_info *)p_get_proto_data(wmem_file_scope(), pinfo, proto_fp, 0);
 426     if (!fpi) {
 427         fpi = wmem_new0(wmem_file_scope(), fp_info);
 428         p_add_proto_data(wmem_file_scope(), pinfo, proto_fp, 0, fpi);
 429     }
 430
 431     fpi->is_uplink = pinfo->p2p_dir == P2P_DIR_RECV;
 432     /* TODO make this configurable */
 433     fpi->release = 7;
 434     fpi->release_year = 2008;
 435     fpi->release_month = 9;
 436     fpi->dch_crc_present = 1;
 437
 438     switch (frame_type) {
 439         case FPH_FRAME_ATM_AAL2:
 440             fpi->link_type = FP_Link_ATM;
 441             break;
 442         case FPH_FRAME_ETHERNET:
 443             fpi->link_type = FP_Link_Ethernet;
 444             break;
 445         default:
 446             fpi->link_type = FP_Link_Unknown;
 447     }
 448
 449     /* at the moment, only IuB is supported */
 450     fpi->iface_type = IuB_Interface;
 451     /* at the moment, only FDD is supported */
 452     fpi->division = Division_FDD;
 453
 454     switch (channel_type) {
 455         case FPH_CHANNEL_PCH:
 456             assign_fph_pch(tvb, pinfo, offset, fpi, tree);
 457             break;
 458         case FPH_CHANNEL_RACH:
 459             assign_fph_rach(tvb, pinfo, offset, fpi, tree);
 460             break;
 461         case FPH_CHANNEL_FACH:
 462             assign_fph_fach(tvb, pinfo, offset, fpi, tree);
 463             break;
 464         case FPH_CHANNEL_DCH:
 465             assign_fph_dch(tvb, pinfo, offset, fpi, tree);
 466             break;
 467         case FPH_CHANNEL_HSDSCH:
 468             assign_fph_hsdsch(tvb, pinfo, offset, fpi, tree);
 469             break;
 470         case FPH_CHANNEL_EDCH:
 471             assign_fph_edch(tvb, pinfo, offset, fpi, tree);
 472             break;
 473         default:
 474             fpi->channel = 0;
 475     }
 476 }
 477
 478 static int dissect_fp_hint(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
 479 {
 480     guint8 frame_type, channel_type;
 481     guint16 hdrlen;
 482     guint32 atm_hdr, aal2_ext;
 483     tvbuff_t *next_tvb;
 484     dissector_handle_t next_dissector;
 485     void *next_dissector_data;
 486     proto_item *ti;
 487     proto_tree *fph_tree = NULL;
 488     struct atm_phdr atm_info;
 489
 490     col_set_str(pinfo->cinfo, COL_PROTOCOL, "FP Hint");
 491
 492     hdrlen = tvb_get_letohs(tvb, 0);
 493     frame_type = tvb_get_guint8(tvb, 2);
 494     channel_type = tvb_get_guint8(tvb, 3);
 495
 496     if (tree) {
 497         ti = proto_tree_add_item(tree, proto_fp_hint, tvb, 0, hdrlen, ENC_NA);
 498         fph_tree = proto_item_add_subtree(ti, ett_fph);
 499         proto_tree_add_uint(fph_tree, hf_fph_frametype, tvb, 2, 1, frame_type);
 500         proto_tree_add_uint(fph_tree, hf_fph_channeltype, tvb, 3, 1, channel_type);
 501     }
 502
 503     /* attach FP, MAC, RLC information */
 504     attach_info(tvb, pinfo, 4, channel_type, frame_type, fph_tree);
 505     switch (frame_type) {
 506         case FPH_FRAME_ATM_AAL2:
 507             aal2_ext = tvb_get_ntohl(tvb, hdrlen); hdrlen += 4;
 508             atm_hdr = tvb_get_ntohl(tvb, hdrlen); hdrlen += 4;
 509             memset(&atm_info, 0, sizeof(atm_info));
 510             atm_info.aal = AAL_2;
 511             /* atm_info.flags = pinfo->p2p_dir; */
 512             atm_info.flags = ATM_AAL2_NOPHDR;
 513             atm_info.vpi = ((atm_hdr & 0x0ff00000) >> 20);
 514             atm_info.vci = ((atm_hdr & 0x000ffff0) >>  4);
 515             atm_info.aal2_cid = aal2_ext & 0x000000ff;
 516             atm_info.type = TRAF_UMTS_FP;
 517             next_dissector = atm_untrunc_handle;
 518             next_dissector_data = &atm_info;
 519             break;
 520         case FPH_FRAME_ETHERNET:
 521             next_dissector = ethwithfcs_handle;
 522             next_dissector_data = NULL;
 523             break;
 524         default:
 525             next_dissector = data_handle;
 526             next_dissector_data = NULL;
 527             break;
 528     }
 529
 530     next_tvb = tvb_new_subset_remaining(tvb, hdrlen);
 531     call_dissector_with_data(next_dissector, next_tvb, pinfo, tree,
 532                              next_dissector_data);
 533     return tvb_captured_length(tvb);
 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, NULL, HFILL } },
 541         { &hf_fph_channeltype, { "Channel Type", "fp_hint.channel_type", FT_UINT8, BASE_HEX, VALS(fph_channeltype_vals), 0x0, NULL, HFILL } },
 542         { &hf_fph_chcnt, { "Number of Channels", "fp_hint.num_chan", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } },
 543         { &hf_fph_dchid, { "DCH ID", "fp_hint.dchid", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } },
 544         { &hf_fph_macdflowid, { "MACd Flow ID", "fp_hint.macdflowid", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } },
 545         { &hf_fph_macehs, { "MAC-ehs indicator", "fp_hint.mac_ehs", FT_BOOLEAN, BASE_NONE, NULL, 0, NULL, HFILL } },
 546         /* traffic format details */
 547         { &hf_fph_tf, { "Traffic Format", "fp_hint.tf", FT_NONE, BASE_NONE, NULL, 0, NULL, HFILL } },
 548         { &hf_fph_tf_n, { "N", "fp_hint.tf.n", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL } },
 549         { &hf_fph_tf_size, { "Size", "fp_hint.tf.size", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL } },
 550         /* DDI information for E-DCH */
 551         { &hf_fph_ddi_entry, { "DDI Entry", "fp_hint.ddi", FT_NONE, BASE_NONE, NULL, 0, NULL, HFILL } },
 552         { &hf_fph_ddi_value, { "DDI", "fp_hint.ddi.value", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } },
 553         { &hf_fph_ddi_logical, { "Logical Channel ID", "fp_hint.ddi.logical", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } },
 554         { &hf_fph_ddi_size, { "Size", "fp_hint.ddi.size", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL } },
 555         /* radio bearer details */
 556         { &hf_fph_rb, { "Radio Bearer", "fp_hint.rb", FT_NONE, BASE_NONE, NULL, 0, NULL, HFILL } },
 557         { &hf_fph_urnti, { "U-RNTI", "fp_hint.rb.urnti", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } },
 558         { &hf_fph_content, { "Content", "fp_hint.rb.content", FT_UINT8, BASE_DEC, VALS(fph_content_vals), 0, NULL, HFILL } },
 559         { &hf_fph_rlcmode, { "RLC Mode", "fp_hint.rb.rlc_mode", FT_UINT8, BASE_DEC, VALS(fph_rlcmode_vals), 0, NULL, HFILL } },
 560         { &hf_fph_rbid, { "Radio Bearer ID", "fp_hint.rb.rbid", FT_UINT16, BASE_DEC, NULL, 0x01f0, NULL, HFILL } },
 561         { &hf_fph_ctmux, { "C/T Mux", "fp_hint.rb.ctmux", FT_BOOLEAN, BASE_NONE, TFS(&fph_ctmux_vals), 0, "C/T Mux field", HFILL } },
 562         { &hf_fph_ciphered, { "Ciphered", "fp_hint.rb.ciphered", FT_BOOLEAN, BASE_NONE, TFS(&fph_ciphered_vals), 0, "Ciphered flag", HFILL } },
 563         { &hf_fph_deciphered, { "Deciphered", "fp_hint.rb.deciphered", FT_BOOLEAN, BASE_NONE, TFS(&fph_deciphered_vals), 0, "Deciphered flag", HFILL } }
 564     };
 565
 566     static gint *ett[] = {
 567         &ett_fph,
 568         &ett_fph_rb,
 569         &ett_fph_ddi_entry,
 570         &ett_fph_tf
 571     };
 572
 573     static ei_register_info ei[] = {
 574         { &ei_fph_radio_bearers, { "fp_hint.rb.invalid", PI_PROTOCOL, PI_WARN, "Frame contains more Radio Bearers than currently supported", EXPFILL }},
 575         { &ei_fph_mac_frames, { "fp_hint.mac_frames.invalid", PI_PROTOCOL, PI_WARN, "Frame contains more MAC Frames than currently supported", EXPFILL }},
 576         { &ei_fph_fp_channels, { "fp_hint.fp_channels.invalid", PI_PROTOCOL, PI_WARN, "Frame contains more FP channels than currently supported", EXPFILL }},
 577     };
 578
 579     expert_module_t* expert_fp_hint;
 580
 581     proto_fp_hint = proto_register_protocol("FP Hint", "FP Hint", "fp_hint");
 582     register_dissector("fp_hint", dissect_fp_hint, proto_fp_hint);
 583
 584     proto_register_field_array(proto_fp_hint, hf, array_length(hf));
 585     proto_register_subtree_array(ett, array_length(ett));
 586     expert_fp_hint = expert_register_protocol(proto_fp_hint);
 587     expert_register_field_array(expert_fp_hint, ei, array_length(ei));
 588 }
 589
 590 void
 591 proto_reg_handoff_fp_hint(void)
 592 {
 593     atm_untrunc_handle = find_dissector_add_dependency("atm_untruncated", proto_fp_hint);
 594     data_handle = find_dissector("data");
 595     ethwithfcs_handle = find_dissector_add_dependency("eth_withfcs", proto_fp_hint);
 596 }
 597
 598
 599 /*
 600  * Editor modelines  -  http://www.wireshark.org/tools/modelines.html
 601  *
 602  * Local variables:
 603  * c-basic-offset: 4
 604  * tab-width: 8
 605  * indent-tabs-mode: nil
 606  * End:
 607  *
 608  * vi: set shiftwidth=4 tabstop=8 expandtab:
 609  * :indentSize=4:tabSize=8:noTabs=true:
 610  */