CRC6: Fixed CRC lookup table and functions
[metze/wireshark/wip.git] / epan / dissectors / packet-iuup.c
1 /* packet-iuup.c
2  * IuUP Protocol 3GPP TS 25.415 V6.2.0 (2005-03)
3  *
4  * (c) 2005 Luis E. Garcia Ontanon <luis@ontanon.org>
5  *
6  * Wireshark - Network traffic analyzer
7  * By Gerald Combs <gerald@wireshark.org>
8  * Copyright 1998 Gerald Combs
9  *
10  * SPDX-License-Identifier: GPL-2.0-or-later
11  */
12
13
14 /*
15    Patch by Polystar (Peter Vestman, Petter Edblom):
16       Corrected rfci handling in rate control messages
17       Added crc6 and crc10 checks for header and payload
18 */
19
20 #include "config.h"
21
22 #include <epan/packet.h>
23 #include <epan/prefs.h>
24 #include <epan/expert.h>
25 #include <epan/conversation.h>
26 #include <epan/crc10-tvb.h>
27 #include <wsutil/crc10.h>
28 #include <wsutil/crc6.h>
29
30 void proto_reg_handoff_iuup(void);
31 void proto_register_iuup(void);
32
33 typedef struct _iuup_rfci_t {
34     guint id;
35     guint sum_len;
36     guint num_of_subflows;
37     struct {
38         guint len;
39     } subflow[8];
40     struct _iuup_rfci_t* next;
41 } iuup_rfci_t;
42
43 typedef struct {
44     guint32 id;
45     guint num_of_subflows;
46     iuup_rfci_t* rfcis;
47     iuup_rfci_t* last_rfci;
48 } iuup_circuit_t;
49
50 static int proto_iuup = -1;
51
52 static int hf_iuup_direction = -1;
53 static int hf_iuup_circuit_id = -1;
54
55 static int hf_iuup_pdu_type = -1;
56 static int hf_iuup_frame_number = -1;
57 static int hf_iuup_fqc = -1;
58 static int hf_iuup_rfci = -1;
59 static int hf_iuup_hdr_crc = -1;
60 static int hf_iuup_payload_crc = -1;
61
62 static int hf_iuup_ack_nack = -1;
63 static int hf_iuup_frame_number_t14 = -1;
64 static int hf_iuup_mode_version = -1;
65 static int hf_iuup_procedure_indicator = -1;
66 static int hf_iuup_error_cause_val = -1;
67
68 static int hf_iuup_init_ti = -1;
69 static int hf_iuup_init_subflows_per_rfci = -1;
70 static int hf_iuup_init_chain_ind = -1;
71
72 static int hf_iuup_error_distance = -1;
73 static int hf_iuup_errorevt_cause_val = -1;
74
75 static int hf_iuup_time_align = -1;
76 static int hf_iuup_spare_bytes = -1;
77 static int hf_iuup_spare_03 = -1;
78 /* static int hf_iuup_spare_0f = -1; */
79 /* static int hf_iuup_spare_c0 = -1; */
80 static int hf_iuup_spare_e0 = -1;
81 static int hf_iuup_spare_ff = -1;
82
83 static int hf_iuup_delay = -1;
84 static int hf_iuup_advance = -1;
85 static int hf_iuup_delta = -1;
86
87 static int hf_iuup_mode_versions = -1;
88 static int hf_iuup_mode_versions_a[] = {-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1};
89
90
91 static int hf_iuup_data_pdu_type = -1;
92
93 static int hf_iuup_num_rfci_ind = -1;
94
95 static int hf_iuup_payload = -1;
96
97 static int hf_iuup_init_rfci_ind = -1;
98 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};
99
100 static int hf_iuup_init_rfci_flow_len[64][8] = {
101     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
102     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
103     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
104     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
105     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
106     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
107     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
108     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1}
109 };
110
111 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};
112 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};
113 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};
114
115 static int hf_iuup_rfci_subflow[64][8] = {
116     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
117     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-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     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
119     {-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},{-1,-1,-1,-1,-1,-1,-1,-1},
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 };
125
126 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};
127
128
129 static gint ett_iuup = -1;
130 static gint ett_rfci = -1;
131 static gint ett_ipti = -1;
132 static gint ett_support = -1;
133 static gint ett_time = -1;
134 static gint ett_rfciinds = -1;
135 static gint ett_payload = -1;
136 static gint ett_payload_subflows = -1;
137
138 static expert_field ei_iuup_hdr_crc_bad = EI_INIT;
139 static expert_field ei_iuup_payload_crc_bad = EI_INIT;
140 static expert_field ei_iuup_payload_undecoded = EI_INIT;
141 static expert_field ei_iuup_error_response = EI_INIT;
142 static expert_field ei_iuup_ack_nack = EI_INIT;
143 static expert_field ei_iuup_time_align = EI_INIT;
144 static expert_field ei_iuup_procedure_indicator = EI_INIT;
145 static expert_field ei_iuup_pdu_type = EI_INIT;
146
147 static wmem_map_t* circuits = NULL;
148
149 static dissector_handle_t iuup_handle;
150
151 static gboolean dissect_fields = FALSE;
152 static gboolean two_byte_pseudoheader = FALSE;
153 static guint global_dynamic_payload_type = 0;
154
155
156 #define PDUTYPE_DATA_WITH_CRC 0
157 #define PDUTYPE_DATA_NO_CRC 1
158 #define PDUTYPE_DATA_CONTROL_PROC 14
159
160 static const value_string iuup_pdu_types[] = {
161     {PDUTYPE_DATA_WITH_CRC,"Data with CRC"},
162     {PDUTYPE_DATA_NO_CRC,"Data without CRC"},
163     {PDUTYPE_DATA_CONTROL_PROC,"Control Procedure"},
164     {0,NULL}
165 };
166
167 static const value_string iuup_colinfo_pdu_types[] = {
168     {PDUTYPE_DATA_WITH_CRC,"Data (CRC)"},
169     {PDUTYPE_DATA_NO_CRC,"Data (no CRC)"},
170     {PDUTYPE_DATA_CONTROL_PROC,""},
171     {0,NULL}
172 };
173
174 #define ACKNACK_ACK 0x4
175 #define ACKNACK_NACK 0x8
176 #define ACKNACK_RESERVED 0xc
177 #define ACKNACK_PROC 0x0
178
179 static const value_string iuup_acknack_vals[] = {
180     {ACKNACK_PROC >> 2,"Procedure"},
181     {ACKNACK_ACK >> 2,"ACK"},
182     {ACKNACK_NACK  >> 2,"NACK"},
183     {ACKNACK_RESERVED  >> 2,"Reserved"},
184     {0,NULL}
185 };
186
187 static const value_string iuup_colinfo_acknack_vals[] = {
188     {ACKNACK_PROC,""},
189     {ACKNACK_ACK,"ACK "},
190     {ACKNACK_NACK,"NACK "},
191     {ACKNACK_RESERVED,"Reserved "},
192     {0,NULL}
193 };
194
195 #define PROC_INIT 0
196 #define PROC_RATE 1
197 #define PROC_TIME 2
198 #define PROC_ERROR 3
199
200 static const value_string iuup_procedures[] = {
201     {PROC_INIT,"Initialization"},
202     {PROC_RATE,"Rate Control"},
203     {PROC_TIME,"Time Alignment"},
204     {PROC_ERROR,"Error Event"},
205     {4,"Reserved(4)"},
206     {5,"Reserved(5)"},
207     {6,"Reserved(6)"},
208     {7,"Reserved(7)"},
209     {8,"Reserved(8)"},
210     {9,"Reserved(9)"},
211     {10,"Reserved(10)"},
212     {11,"Reserved(11)"},
213     {12,"Reserved(12)"},
214     {13,"Reserved(13)"},
215     {14,"Reserved(14)"},
216     {15,"Reserved(15)"},
217     {0,NULL}
218 };
219
220 static const value_string iuup_colinfo_procedures[] = {
221     {PROC_INIT,"Initialization "},
222     {PROC_RATE,"Rate Control "},
223     {PROC_TIME,"Time Alignment "},
224     {PROC_ERROR,"Error Event "},
225     {0,NULL}
226 };
227
228
229 static const value_string iuup_error_distances[] = {
230     {0, "Reporting local error"},
231     {1, "First forwarding of error event report"},
232     {2, "Second forwarding of error event report"},
233     {3, "Reserved"},
234     {0,NULL}
235 };
236
237 static const value_string iuup_error_causes[] = {
238     {0, "CRC error of frame header"},
239     {1, "CRC error of frame payload"},
240     {2, "Unexpected frame number"},
241     {3, "Frame loss"},
242     {4, "PDU type unknown"},
243     {5, "Unknown procedure"},
244     {6, "Unknown reserved value"},
245     {7, "Unknown field"},
246     {8, "Frame too short"},
247     {9, "Missing fields"},
248     {16, "Unexpected PDU type"},
249     {18, "Unexpected procedure"},
250     {19, "Unexpected RFCI"},
251     {20, "Unexpected value"},
252     {42, "Initialisation failure"},
253     {43, "Initialisation failure (network error, timer expiry)"},
254     {44, "Initialisation failure (Iu UP function error, repeated NACK)"},
255     {45, "Rate control failure"},
256     {46, "Error event failure"},
257     {47, "Time Alignment not supported"},
258     {48, "Requested Time Alignment not possible"},
259     {49, "Iu UP Mode version not supported"},
260     {0,NULL}
261 };
262
263 static const value_string iuup_rfci_indicator[] = {
264     {0, "RFCI allowed"},
265     {1, "RFCI barred"},
266     {0,NULL}
267 };
268
269
270 static const value_string iuup_ti_vals[] = {
271     {0, "IPTIs not present"},
272     {1, "IPTIs present in frame"},
273     {0,NULL}
274 };
275
276 static const value_string iuup_mode_version_support[] = {
277     {0, "not supported"},
278     {1, "supported"},
279     {0,NULL}
280 };
281
282 static const value_string iuup_init_rfci_li_vals[] = {
283     {0, "one octet used"},
284     {1, "two octets used"},
285     {0,NULL}
286 };
287
288 static const value_string iuup_init_chain_ind_vals[] = {
289     {0, "this frame is the last frame for the procedure"},
290     {1, "additional frames will be sent for the procedure"},
291     {0,NULL}
292 };
293
294 static const value_string iuup_init_lri_vals[] = {
295     {0, "Not last RFCI"},
296     {1, "Last RFCI in current frame"},
297     {0,NULL}
298 };
299
300 static const value_string iuup_payload_pdu_type[] = {
301     {0, "PDU type 0"},
302     {1, "PDU type 1"},
303     {0,NULL}
304 };
305
306 static const value_string iuup_fqcs[] = {
307     {0, "Frame Good"},
308     {1, "Frame BAD"},
309     {2, "Frame bad due to radio"},
310     {3, "spare"},
311     {0,NULL}
312 };
313
314
315 static proto_item*
316 iuup_proto_tree_add_bits(proto_tree* tree, int hf, tvbuff_t* tvb, int offset, int bit_offset, guint bits, guint8** buf) {
317     static const guint8 masks[] = {0x00,0x80,0xc0,0xe0,0xf0,0xf8,0xfc,0xfe};
318     int len = (bits + bit_offset)/8 + (((bits + bit_offset)%8) ? 0 : 1);
319     guint8* shifted_buffer;
320     proto_item* pi;
321     int i;
322
323     DISSECTOR_ASSERT(bit_offset < 8);
324
325     shifted_buffer = (guint8 *)tvb_memdup(wmem_packet_scope(),tvb,offset,len+1);
326
327     for(i = 0; i < len; i++) {
328         shifted_buffer[i] <<= bit_offset;
329         shifted_buffer[i] |= (shifted_buffer[i+1] & masks[bit_offset]) >> (8 - bit_offset);
330     }
331
332     shifted_buffer[len] <<=  bit_offset;
333     shifted_buffer[len] &= masks[(bits + bit_offset)%8];
334
335     if (buf)
336         *buf = shifted_buffer;
337
338     pi = proto_tree_add_bytes(tree, hf, tvb, offset, len + (((bits + bit_offset)%8) ? 1 : 0) , shifted_buffer);
339     proto_item_append_text(pi, " (%i Bits)", bits);
340
341     return pi;
342 }
343
344 static void dissect_iuup_payload(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, guint rfci_id _U_, int offset, guint32 circuit_id) {
345     iuup_circuit_t* iuup_circuit;
346     iuup_rfci_t *rfci;
347     int last_offset = tvb_reported_length(tvb) - 1;
348     guint bit_offset = 0;
349     proto_item* pi;
350
351     pi = proto_tree_add_item(tree,hf_iuup_payload,tvb,offset,-1,ENC_NA);
352
353     if ( ! dissect_fields ) {
354         return;
355     } else if ( ! circuit_id
356                 || ! ( iuup_circuit  = (iuup_circuit_t *)wmem_map_lookup(circuits,GUINT_TO_POINTER(circuit_id)) ) ) {
357         expert_add_info(pinfo, pi, &ei_iuup_payload_undecoded);
358         return;
359     }
360
361     for(rfci = iuup_circuit->rfcis; rfci; rfci = rfci->next)
362         if ( rfci->id == rfci_id )
363             break;
364
365     if (!rfci) {
366         expert_add_info(pinfo, pi, &ei_iuup_payload_undecoded);
367         return;
368     }
369
370     tree = proto_item_add_subtree(pi,ett_payload);
371
372
373     do {
374         guint i;
375         guint subflows = rfci->num_of_subflows;
376         proto_tree* flow_tree;
377
378         flow_tree = proto_tree_add_subtree(tree,tvb,offset,-1,ett_payload_subflows,NULL,"Payload Frame");
379
380         bit_offset = 0;
381
382         for(i = 0; i < subflows; i++) {
383
384             if (! rfci->subflow[i].len)
385                 continue;
386
387             iuup_proto_tree_add_bits(flow_tree, hf_iuup_rfci_subflow[rfci->id][i], tvb,
388                                 offset + (bit_offset/8),
389                                 bit_offset % 8,
390                                 rfci->subflow[i].len,
391                                 NULL);
392
393             bit_offset += rfci->subflow[i].len;
394         }
395
396         offset += (bit_offset / 8) + ((bit_offset % 8) ? 1 : 0);
397
398     } while (offset <= last_offset);
399 }
400
401 static guint dissect_rfcis(tvbuff_t* tvb, packet_info* pinfo _U_, proto_tree* tree, int* offset, iuup_circuit_t* iuup_circuit) {
402     proto_item* pi;
403     proto_tree* pt;
404     guint8 oct;
405     guint c = 0;
406     guint i;
407
408     do {
409         iuup_rfci_t *rfci = wmem_new0(wmem_file_scope(), iuup_rfci_t);
410         guint len = 0;
411
412         DISSECTOR_ASSERT(c < 64);
413
414         pi = proto_tree_add_item(tree,hf_iuup_init_rfci_ind,tvb,*offset,-1,ENC_NA);
415         pt = proto_item_add_subtree(pi,ett_rfci);
416
417         proto_tree_add_item(pt,hf_iuup_init_rfci_lri[c],tvb,*offset,1,ENC_BIG_ENDIAN);
418         proto_tree_add_item(pt,hf_iuup_init_rfci_li[c],tvb,*offset,1,ENC_BIG_ENDIAN);
419         proto_tree_add_item(pt,hf_iuup_init_rfci[c],tvb,*offset,1,ENC_BIG_ENDIAN);
420
421         oct = tvb_get_guint8(tvb,*offset);
422         rfci->id = oct & 0x3f;
423         rfci->num_of_subflows = iuup_circuit->num_of_subflows;
424
425         len = (oct & 0x40) ? 2 : 1;
426         proto_item_set_text(pi,"RFCI %i Initialization",rfci->id);
427         proto_item_set_len(pi,(len*iuup_circuit->num_of_subflows)+1);
428
429         (*offset)++;
430
431         for(i = 0; i < iuup_circuit->num_of_subflows; i++) {
432             guint subflow_len;
433
434             if (len == 2) {
435                 subflow_len = tvb_get_ntohs(tvb,*offset);
436             } else {
437                 subflow_len = tvb_get_guint8(tvb,*offset);
438             }
439
440             rfci->subflow[i].len = subflow_len;
441             rfci->sum_len += subflow_len;
442
443             proto_tree_add_uint(pt,hf_iuup_init_rfci_flow_len[c][i],tvb,*offset,len,subflow_len);
444
445             (*offset) += len;
446         }
447
448
449         if (iuup_circuit->last_rfci) {
450             iuup_circuit->last_rfci = iuup_circuit->last_rfci->next = rfci;
451         } else {
452             iuup_circuit->last_rfci = iuup_circuit->rfcis = rfci;
453         }
454
455         c++;
456     } while ( ! (oct & 0x80) );
457
458     return c - 1;
459 }
460
461 static void dissect_iuup_init(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, guint32 circuit_id) {
462     int offset = 4;
463     guint8 oct = tvb_get_guint8(tvb,offset);
464     guint n = (oct & 0x0e) >> 1;
465     gboolean ti = oct & 0x10;
466     guint i;
467     guint rfcis;
468     proto_item* pi;
469     proto_tree* support_tree = NULL;
470     proto_tree* iptis_tree;
471     iuup_circuit_t* iuup_circuit = NULL;
472
473     if (circuit_id) {
474         iuup_circuit = (iuup_circuit_t *)wmem_map_lookup(circuits,GUINT_TO_POINTER(circuit_id));
475
476         if (iuup_circuit) {
477             wmem_map_remove(circuits,GUINT_TO_POINTER(circuit_id));
478         }
479
480         iuup_circuit = wmem_new0(wmem_file_scope(), iuup_circuit_t);
481     } else {
482         iuup_circuit = wmem_new0(wmem_packet_scope(), iuup_circuit_t);
483     }
484
485     iuup_circuit->id = circuit_id;
486     iuup_circuit->num_of_subflows = n;
487     iuup_circuit->rfcis = NULL;
488     iuup_circuit->last_rfci = NULL;
489
490     if (circuit_id) {
491         wmem_map_insert(circuits,GUINT_TO_POINTER(iuup_circuit->id),iuup_circuit);
492     }
493
494     if (tree) {
495         proto_tree_add_item(tree,hf_iuup_spare_e0,tvb,offset,1,ENC_BIG_ENDIAN);
496         proto_tree_add_item(tree,hf_iuup_init_ti,tvb,offset,1,ENC_BIG_ENDIAN);
497         proto_tree_add_item(tree,hf_iuup_init_subflows_per_rfci,tvb,offset,1,ENC_BIG_ENDIAN);
498         proto_tree_add_item(tree,hf_iuup_init_chain_ind,tvb,offset,1,ENC_BIG_ENDIAN);
499     }
500
501     offset++;
502
503     rfcis = dissect_rfcis(tvb, pinfo, tree, &offset, iuup_circuit);
504
505     if (!tree) return;
506
507     if (ti) {
508         iptis_tree = proto_tree_add_subtree(tree,tvb,offset,(rfcis/2)+(rfcis%2),ett_ipti,NULL,"IPTIs");
509
510         for (i = 0; i <= rfcis; i++) {
511             proto_tree_add_item(iptis_tree,hf_iuup_init_ipti[i],tvb,offset,1,ENC_BIG_ENDIAN);
512             if ((i%2)) {
513                 offset++;
514             }
515         }
516
517         if ((i%2)) {
518             offset++;
519         }
520     }
521
522     if (tree) {
523         pi = proto_tree_add_item(tree,hf_iuup_mode_versions,tvb,offset,2,ENC_BIG_ENDIAN);
524         support_tree = proto_item_add_subtree(pi,ett_support);
525
526         for (i = 0; i < 16; i++) {
527             proto_tree_add_item(support_tree,hf_iuup_mode_versions_a[i],tvb,offset,2,ENC_BIG_ENDIAN);
528         }
529
530     }
531
532     offset += 2;
533
534     proto_tree_add_item(tree,hf_iuup_data_pdu_type,tvb,offset,1,ENC_BIG_ENDIAN);
535
536 }
537
538 static void dissect_iuup_ratectl(tvbuff_t* tvb, packet_info* pinfo _U_, proto_tree* tree) {
539     guint num = tvb_get_guint8(tvb,4) & 0x3f;
540     guint i;
541     proto_item* pi;
542     proto_tree* inds_tree;
543     int offset = 4;
544
545     pi = proto_tree_add_item(tree,hf_iuup_num_rfci_ind,tvb,4,1,ENC_BIG_ENDIAN);
546     inds_tree = proto_item_add_subtree(pi,ett_rfciinds);
547
548     for (i = 0; i < num; i++) {
549         if (! (i % 8) ) offset++;
550         proto_tree_add_item(inds_tree,hf_iuup_rfci_ratectl[i],tvb,offset,1,ENC_BIG_ENDIAN);
551     }
552
553 }
554
555 static void add_hdr_crc(tvbuff_t* tvb, packet_info* pinfo, proto_item* iuup_tree, guint16 crccheck)
556 {
557     proto_item *crc_item;
558
559     crc_item = proto_tree_add_item(iuup_tree,hf_iuup_hdr_crc,tvb,2,1,ENC_BIG_ENDIAN);
560     if (crccheck) {
561         proto_item_append_text(crc_item, "%s", " [incorrect]");
562         expert_add_info(pinfo, crc_item, &ei_iuup_hdr_crc_bad);
563     }
564 }
565
566 static guint16
567 update_crc10_by_bytes_iuup(tvbuff_t *tvb, int offset, int length)
568 {
569     guint16 crc10;
570     guint16 extra_16bits;
571     guint8 extra_8bits[2];
572
573     crc10 = update_crc10_by_bytes_tvb(0, tvb, offset + 2, length);
574     extra_16bits = tvb_get_ntohs(tvb, offset) & 0x3FF;
575     extra_8bits[0] = extra_16bits >> 2;
576     extra_8bits[1] = (extra_16bits << 6) & 0xFF;
577     crc10 = update_crc10_by_bytes(crc10, extra_8bits, 2);
578     return crc10;
579 }
580
581 static void add_payload_crc(tvbuff_t* tvb, packet_info* pinfo, proto_item* iuup_tree)
582 {
583     proto_item *crc_item;
584     int length = tvb_reported_length(tvb);
585     guint16 crccheck = update_crc10_by_bytes_iuup(tvb, 2, length - 4);
586
587     crc_item = proto_tree_add_item(iuup_tree,hf_iuup_payload_crc,tvb,2,2,ENC_BIG_ENDIAN);
588     if (crccheck) {
589         proto_item_append_text(crc_item, "%s", " [incorrect]");
590         expert_add_info(pinfo, crc_item, &ei_iuup_payload_crc_bad);
591     }
592 }
593
594 #define ACKNACK_MASK  0x0c
595 #define PROCEDURE_MASK  0x0f
596 #define FQC_MASK 0xc0
597 #define PDUTYPE_MASK 0xf0
598 static int dissect_iuup(tvbuff_t* tvb_in, packet_info* pinfo, proto_tree* tree, void* data _U_) {
599     proto_item* pi;
600     proto_item* iuup_item = NULL;
601     proto_item* pdutype_item = NULL;
602     proto_tree* iuup_tree = NULL;
603     proto_item* proc_item = NULL;
604     proto_item* ack_item = NULL;
605     guint8 first_octet;
606     guint8 second_octet;
607     guint8 octet_array[2];
608     guint8 pdutype;
609     guint phdr = 0;
610     guint16  hdrcrc6;
611     guint16  crccheck;
612     tvbuff_t* tvb = tvb_in;
613
614     col_set_str(pinfo->cinfo, COL_PROTOCOL, "IuUP");
615
616     if (two_byte_pseudoheader) {
617         int len = tvb_reported_length(tvb_in) - 2;
618
619         phdr = tvb_get_ntohs(tvb,0);
620
621         proto_tree_add_item(tree,hf_iuup_direction,tvb,0,2,ENC_BIG_ENDIAN);
622         proto_tree_add_item(tree,hf_iuup_circuit_id,tvb,0,2,ENC_BIG_ENDIAN);
623
624         phdr &= 0x7fff;
625
626         conversation_create_endpoint_by_id(pinfo, ENDPOINT_IUUP, phdr, 0);
627
628         tvb = tvb_new_subset_length(tvb_in,2,len);
629     }
630
631     octet_array[0] = first_octet =  tvb_get_guint8(tvb,0);
632     octet_array[1] = second_octet =  tvb_get_guint8(tvb,1);
633     hdrcrc6 = tvb_get_guint8(tvb, 2) >> 2;
634     crccheck = crc6_0X6F(hdrcrc6, octet_array, 2);
635
636     pdutype = ( first_octet & PDUTYPE_MASK ) >> 4;
637
638     if (tree) {
639         iuup_item = proto_tree_add_item(tree,proto_iuup,tvb,0,-1,ENC_NA);
640         iuup_tree = proto_item_add_subtree(iuup_item,ett_iuup);
641
642         pdutype_item = proto_tree_add_item(iuup_tree,hf_iuup_pdu_type,tvb,0,1,ENC_BIG_ENDIAN);
643     }
644
645     col_add_str(pinfo->cinfo, COL_INFO, val_to_str(pdutype, iuup_colinfo_pdu_types, "Unknown PDU Type(%u) "));
646
647     switch(pdutype) {
648         case PDUTYPE_DATA_WITH_CRC:
649             col_append_fstr(pinfo->cinfo, COL_INFO,"FN: %x RFCI: %u", (guint)(first_octet & 0x0f) ,(guint)(second_octet & 0x3f));
650
651             proto_tree_add_item(iuup_tree,hf_iuup_frame_number,tvb,0,1,ENC_BIG_ENDIAN);
652             pi = proto_tree_add_item(iuup_tree,hf_iuup_fqc,tvb,1,1,ENC_BIG_ENDIAN);
653
654             if (first_octet & FQC_MASK) {
655                 expert_add_info(pinfo, pi, &ei_iuup_error_response);
656             }
657
658             proto_tree_add_item(iuup_tree,hf_iuup_rfci,tvb,1,1,ENC_BIG_ENDIAN);
659             add_hdr_crc(tvb, pinfo, iuup_tree, crccheck);
660             add_payload_crc(tvb, pinfo, iuup_tree);
661             dissect_iuup_payload(tvb,pinfo,iuup_tree,second_octet & 0x3f,4, conversation_get_endpoint_by_id(pinfo, ENDPOINT_IUUP, USE_LAST_ENDPOINT));
662             return tvb_captured_length(tvb);
663         case PDUTYPE_DATA_NO_CRC:
664             col_append_fstr(pinfo->cinfo, COL_INFO," RFCI %u", (guint)(second_octet & 0x3f));
665
666             proto_tree_add_item(iuup_tree,hf_iuup_frame_number,tvb,0,1,ENC_BIG_ENDIAN);
667             pi = proto_tree_add_item(iuup_tree,hf_iuup_fqc,tvb,1,1,ENC_BIG_ENDIAN);
668
669             if (first_octet & FQC_MASK) {
670                 expert_add_info(pinfo, pi, &ei_iuup_error_response);
671             }
672
673             proto_tree_add_item(iuup_tree,hf_iuup_rfci,tvb,1,1,ENC_BIG_ENDIAN);
674             add_hdr_crc(tvb, pinfo, iuup_tree, crccheck);
675             dissect_iuup_payload(tvb,pinfo,iuup_tree,second_octet & 0x3f,3, conversation_get_endpoint_by_id(pinfo, ENDPOINT_IUUP, USE_LAST_ENDPOINT));
676             return tvb_captured_length(tvb);
677         case PDUTYPE_DATA_CONTROL_PROC:
678             if (tree) {
679                 ack_item = proto_tree_add_item(iuup_tree,hf_iuup_ack_nack,tvb,0,1,ENC_BIG_ENDIAN);
680                 proto_tree_add_item(iuup_tree,hf_iuup_frame_number_t14,tvb,0,1,ENC_BIG_ENDIAN);
681                 proto_tree_add_item(iuup_tree,hf_iuup_mode_version,tvb,1,1,ENC_BIG_ENDIAN);
682                 proc_item = proto_tree_add_item(iuup_tree,hf_iuup_procedure_indicator,tvb,1,1,ENC_BIG_ENDIAN);
683                 add_hdr_crc(tvb, pinfo, iuup_tree, crccheck);
684             }
685
686             col_append_str(pinfo->cinfo, COL_INFO,
687                            val_to_str(first_octet & ACKNACK_MASK,
688                                       iuup_colinfo_acknack_vals, "[action:%u] "));
689
690             col_append_str(pinfo->cinfo, COL_INFO,
691                            val_to_str(second_octet & PROCEDURE_MASK,
692                                       iuup_colinfo_procedures, "[proc:%u] "));
693
694             switch ( first_octet & ACKNACK_MASK ) {
695                 case ACKNACK_ACK:
696                     switch(second_octet & PROCEDURE_MASK) {
697                         case PROC_INIT:
698                             proto_tree_add_item(iuup_tree,hf_iuup_spare_03,tvb,2,1,ENC_BIG_ENDIAN);
699                             proto_tree_add_item(iuup_tree,hf_iuup_spare_ff,tvb,3,1,ENC_BIG_ENDIAN);
700                             return tvb_captured_length(tvb);
701                         case PROC_RATE:
702                             dissect_iuup_ratectl(tvb,pinfo,iuup_tree);
703                             return tvb_captured_length(tvb);
704                         case PROC_TIME:
705                         case PROC_ERROR:
706                             break;
707                         default:
708                             expert_add_info(pinfo, proc_item, &ei_iuup_procedure_indicator);
709                             return tvb_captured_length(tvb);
710                     }
711                     break;
712                 case ACKNACK_NACK:
713                     pi = proto_tree_add_item(iuup_tree,hf_iuup_error_cause_val,tvb,4,1,ENC_BIG_ENDIAN);
714                     expert_add_info(pinfo, pi, &ei_iuup_error_response);
715                     return tvb_captured_length(tvb);
716                 case ACKNACK_RESERVED:
717                     expert_add_info(pinfo, ack_item, &ei_iuup_ack_nack);
718                     return tvb_captured_length(tvb);
719                 case ACKNACK_PROC:
720                     break;
721             }
722
723             switch( second_octet & PROCEDURE_MASK ) {
724                 case PROC_INIT:
725                     add_payload_crc(tvb, pinfo, iuup_tree);
726                     dissect_iuup_init(tvb,pinfo,iuup_tree, conversation_get_endpoint_by_id(pinfo, ENDPOINT_IUUP, USE_LAST_ENDPOINT));
727                     return tvb_captured_length(tvb);
728                 case PROC_RATE:
729                     add_payload_crc(tvb, pinfo, iuup_tree);
730                     dissect_iuup_ratectl(tvb,pinfo,iuup_tree);
731                     return tvb_captured_length(tvb);
732                 case PROC_TIME:
733                 {
734                     proto_tree* time_tree;
735                     guint ta;
736
737                     ta = tvb_get_guint8(tvb,4);
738
739                     pi = proto_tree_add_item(iuup_tree,hf_iuup_time_align,tvb,4,1,ENC_BIG_ENDIAN);
740                     time_tree = proto_item_add_subtree(pi,ett_time);
741
742                     if (ta >= 1 && ta <= 80) {
743                         pi = proto_tree_add_uint(time_tree,hf_iuup_delay,tvb,4,1,ta * 500);
744                         PROTO_ITEM_SET_GENERATED(pi);
745                         pi = proto_tree_add_float(time_tree,hf_iuup_delta,tvb,4,1,((gfloat)((gint)(ta) * 500))/(gfloat)1000000.0);
746                         PROTO_ITEM_SET_GENERATED(pi);
747                     } else if (ta >= 129 && ta <= 208) {
748                         pi = proto_tree_add_uint(time_tree,hf_iuup_advance,tvb,4,1,(ta-128) * 500);
749                         PROTO_ITEM_SET_GENERATED(pi);
750                         pi = proto_tree_add_float(time_tree,hf_iuup_delta,tvb,4,1,((gfloat)((gint)(-(((gint)ta)-128))) * 500)/(gfloat)1000000.0);
751                         PROTO_ITEM_SET_GENERATED(pi);
752                     } else {
753                         expert_add_info(pinfo, pi, &ei_iuup_time_align);
754                     }
755
756                     proto_tree_add_item(iuup_tree,hf_iuup_spare_bytes,tvb,5,-1,ENC_NA);
757                     return tvb_captured_length(tvb);
758                 }
759                 case PROC_ERROR:
760                     col_append_str(pinfo->cinfo, COL_INFO, val_to_str(tvb_get_guint8(tvb,4) & 0x3f,iuup_error_causes,"Unknown (%u)"));
761
762                     proto_tree_add_item(iuup_tree,hf_iuup_error_distance,tvb,4,1,ENC_BIG_ENDIAN);
763                     pi = proto_tree_add_item(iuup_tree,hf_iuup_errorevt_cause_val,tvb,4,1,ENC_BIG_ENDIAN);
764                     expert_add_info(pinfo, pi, &ei_iuup_error_response);
765                     proto_tree_add_item(iuup_tree,hf_iuup_spare_bytes,tvb,5,-1,ENC_NA);
766                     return tvb_captured_length(tvb);
767                 default: /* bad */
768                     expert_add_info(pinfo, proc_item, &ei_iuup_procedure_indicator);
769                     return tvb_captured_length(tvb);
770             }
771         default:
772             expert_add_info(pinfo, pdutype_item, &ei_iuup_pdu_type);
773             break;
774     }
775     return tvb_captured_length(tvb);
776 }
777
778
779 static gboolean dissect_iuup_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) {
780     int len = tvb_captured_length(tvb);
781
782     guint8 first_octet =  tvb_get_guint8(tvb,0);
783     guint8 second_octet =  tvb_get_guint8(tvb,1);
784     guint8 octet_array[] = {first_octet, second_octet};
785     guint16 hdrcrc6 = tvb_get_guint8(tvb, 2) >> 2;
786
787     if (crc6_0X6F(hdrcrc6, octet_array, second_octet)) return FALSE;
788
789     switch ( first_octet & 0xf0 ) {
790         case 0x00: {
791             if (len<7) return FALSE;
792             if (update_crc10_by_bytes_iuup(tvb, 4, len-4) ) return FALSE;
793             break;
794         }
795         case 0x10:
796             /* a FALSE positive factory */
797             if (len<5) return FALSE;
798             break;
799         case 0xe0:
800             if (len<5) return FALSE;
801             if( (second_octet & 0x0f) > 3) return FALSE;
802             break;
803         default:
804             return FALSE;
805     }
806
807     dissect_iuup(tvb, pinfo, tree, data);
808     return TRUE;
809 }
810
811
812 static int find_iuup(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) {
813     int len = tvb_captured_length(tvb);
814     int offset = 0;
815
816     while (len > 3) {
817         if ( dissect_iuup_heur(tvb_new_subset_remaining(tvb,offset), pinfo, tree, data) )
818             return tvb_captured_length(tvb);
819
820         offset++;
821         len--;
822     }
823
824     call_data_dissector(tvb, pinfo, tree);
825     return tvb_captured_length(tvb);
826 }
827
828
829 void proto_reg_handoff_iuup(void) {
830     static gboolean iuup_prefs_initialized = FALSE;
831     static guint saved_dynamic_payload_type = 0;
832
833     if (!iuup_prefs_initialized) {
834         dissector_add_string("rtp_dyn_payload_type","VND.3GPP.IUFP", iuup_handle);
835         iuup_prefs_initialized = TRUE;
836     } else {
837         if ( saved_dynamic_payload_type > 95 ) {
838             dissector_delete_uint("rtp.pt", saved_dynamic_payload_type, iuup_handle);
839         }
840     }
841
842     saved_dynamic_payload_type = global_dynamic_payload_type;
843
844     if ( global_dynamic_payload_type > 95 ) {
845         dissector_add_uint("rtp.pt", global_dynamic_payload_type, iuup_handle);
846     }
847 }
848
849
850 #define HFS_RFCI(i) \
851 { &hf_iuup_rfci_ratectl[i], { "RFCI " #i, "iuup.rfci." #i, FT_UINT8, BASE_DEC, VALS(iuup_rfci_indicator),0x80>>(i%8),NULL,HFILL}}, \
852 { &hf_iuup_init_rfci[i], { "RFCI " #i, "iuup.rfci." #i, FT_UINT8, BASE_DEC, NULL,0x3f,NULL,HFILL}}, \
853 { &hf_iuup_init_rfci_flow_len[i][0], { "RFCI " #i " Flow 0 Len", "iuup.rfci."#i".flow.0.len", FT_UINT16, BASE_DEC, NULL,0x0,NULL,HFILL}}, \
854 { &hf_iuup_init_rfci_flow_len[i][1], { "RFCI " #i " Flow 1 Len", "iuup.rfci."#i".flow.1.len", FT_UINT16, BASE_DEC, NULL,0x0,NULL,HFILL}}, \
855 { &hf_iuup_init_rfci_flow_len[i][2], { "RFCI " #i " Flow 2 Len", "iuup.rfci."#i".flow.2.len", FT_UINT16, BASE_DEC, NULL,0x0,NULL,HFILL}}, \
856 { &hf_iuup_init_rfci_flow_len[i][3], { "RFCI " #i " Flow 3 Len", "iuup.rfci."#i".flow.3.len", FT_UINT16, BASE_DEC, NULL,0x0,NULL,HFILL}}, \
857 { &hf_iuup_init_rfci_flow_len[i][4], { "RFCI " #i " Flow 4 Len", "iuup.rfci."#i".flow.4.len", FT_UINT16, BASE_DEC, NULL,0x0,NULL,HFILL}}, \
858 { &hf_iuup_init_rfci_flow_len[i][5], { "RFCI " #i " Flow 5 Len", "iuup.rfci."#i".flow.5.len", FT_UINT16, BASE_DEC, NULL,0x0,NULL,HFILL}}, \
859 { &hf_iuup_init_rfci_flow_len[i][6], { "RFCI " #i " Flow 6 Len", "iuup.rfci."#i".flow.6.len", FT_UINT16, BASE_DEC, NULL,0x0,NULL,HFILL}}, \
860 { &hf_iuup_init_rfci_flow_len[i][7], { "RFCI " #i " Flow 7 Len", "iuup.rfci."#i".flow.7.len", FT_UINT16, BASE_DEC, NULL,0x0,NULL,HFILL}}, \
861 { &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}}, \
862 { &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}}, \
863 { &hf_iuup_rfci_subflow[i][0], { "RFCI " #i " Flow 0", "iuup.rfci."#i".flow.0", FT_BYTES, BASE_NONE, NULL,0x0,NULL,HFILL}}, \
864 { &hf_iuup_rfci_subflow[i][1], { "RFCI " #i " Flow 1", "iuup.rfci."#i".flow.1", FT_BYTES, BASE_NONE, NULL,0x0,NULL,HFILL}}, \
865 { &hf_iuup_rfci_subflow[i][2], { "RFCI " #i " Flow 2", "iuup.rfci."#i".flow.2", FT_BYTES, BASE_NONE, NULL,0x0,NULL,HFILL}}, \
866 { &hf_iuup_rfci_subflow[i][3], { "RFCI " #i " Flow 3", "iuup.rfci."#i".flow.3", FT_BYTES, BASE_NONE, NULL,0x0,NULL,HFILL}}, \
867 { &hf_iuup_rfci_subflow[i][4], { "RFCI " #i " Flow 4", "iuup.rfci."#i".flow.4", FT_BYTES, BASE_NONE, NULL,0x0,NULL,HFILL}}, \
868 { &hf_iuup_rfci_subflow[i][5], { "RFCI " #i " Flow 5", "iuup.rfci."#i".flow.5", FT_BYTES, BASE_NONE, NULL,0x0,NULL,HFILL}}, \
869 { &hf_iuup_rfci_subflow[i][6], { "RFCI " #i " Flow 6", "iuup.rfci."#i".flow.6", FT_BYTES, BASE_NONE, NULL,0x0,NULL,HFILL}}, \
870 { &hf_iuup_rfci_subflow[i][7], { "RFCI " #i " Flow 7", "iuup.rfci."#i".flow.7", FT_BYTES, BASE_NONE, NULL,0x0,NULL,HFILL}}, \
871 { &hf_iuup_init_ipti[i], { "RFCI " #i " IPTI", "iuup.rfci."#i".ipti", FT_UINT8, BASE_HEX, NULL,i%2 ? 0x0F : 0xF0,NULL,HFILL}}
872
873
874
875 void proto_register_iuup(void) {
876     static hf_register_info hf[] = {
877         { &hf_iuup_direction, { "Frame Direction", "iuup.direction", FT_UINT16, BASE_DEC, NULL,0x8000,NULL,HFILL}},
878         { &hf_iuup_circuit_id, { "Circuit ID", "iuup.circuit_id", FT_UINT16, BASE_DEC, NULL,0x7fff,NULL,HFILL}},
879         { &hf_iuup_pdu_type, { "PDU Type", "iuup.pdu_type", FT_UINT8, BASE_DEC, VALS(iuup_pdu_types),0xf0,NULL,HFILL}},
880         { &hf_iuup_frame_number, { "Frame Number", "iuup.framenum", FT_UINT8, BASE_DEC, NULL,0x0F,NULL,HFILL}},
881         { &hf_iuup_fqc, { "FQC", "iuup.fqc", FT_UINT8, BASE_DEC, VALS(iuup_fqcs),0xc0,"Frame Quality Classification",HFILL}},
882         { &hf_iuup_rfci, { "RFCI", "iuup.rfci", FT_UINT8, BASE_HEX, NULL, 0x3f, "RAB sub-Flow Combination Indicator",HFILL}},
883         { &hf_iuup_hdr_crc, { "Header CRC", "iuup.header_crc", FT_UINT8, BASE_HEX, NULL,0xfc,NULL,HFILL}},
884         { &hf_iuup_payload_crc, { "Payload CRC", "iuup.payload_crc", FT_UINT16, BASE_HEX, NULL,0x03FF,NULL,HFILL}},
885         { &hf_iuup_ack_nack, { "Ack/Nack", "iuup.ack", FT_UINT8, BASE_DEC, VALS(iuup_acknack_vals),0x0c,NULL,HFILL}},
886         { &hf_iuup_frame_number_t14, { "Frame Number", "iuup.framenum_t14", FT_UINT8, BASE_DEC, NULL,0x03,NULL,HFILL}},
887         { &hf_iuup_mode_version, { "Mode Version", "iuup.mode", FT_UINT8, BASE_HEX, NULL,0xf0,NULL,HFILL}},
888         { &hf_iuup_procedure_indicator, { "Procedure", "iuup.procedure", FT_UINT8, BASE_DEC, VALS(iuup_procedures),0x0f,NULL,HFILL}},
889         { &hf_iuup_error_cause_val, { "Error Cause", "iuup.error_cause", FT_UINT8, BASE_DEC, VALS(iuup_error_causes),0xfc,NULL,HFILL}},
890         { &hf_iuup_error_distance, { "Error DISTANCE", "iuup.error_distance", FT_UINT8, BASE_DEC, VALS(iuup_error_distances),0xc0,NULL,HFILL}},
891         { &hf_iuup_errorevt_cause_val, { "Error Cause", "iuup.errorevt_cause", FT_UINT8, BASE_DEC, NULL,0x3f,NULL,HFILL}},
892         { &hf_iuup_time_align, { "Time Align", "iuup.time_align", FT_UINT8, BASE_HEX, NULL,0x0,NULL,HFILL}},
893         { &hf_iuup_data_pdu_type, { "RFCI Data Pdu Type", "iuup.data_pdu_type", FT_UINT8, BASE_HEX, VALS(iuup_payload_pdu_type),0xF0,NULL,HFILL}},
894
895         { &hf_iuup_spare_03, { "Spare", "iuup.spare", FT_UINT8, BASE_HEX, NULL,0x03,NULL,HFILL}},
896 #if 0
897         { &hf_iuup_spare_0f, { "Spare", "iuup.spare", FT_UINT8, BASE_HEX, NULL,0x0f,NULL,HFILL}},
898 #endif
899 #if 0
900         { &hf_iuup_spare_c0, { "Spare", "iuup.spare", FT_UINT8, BASE_HEX, NULL,0xc0,NULL,HFILL}},
901 #endif
902         { &hf_iuup_spare_e0, { "Spare", "iuup.spare", FT_UINT8, BASE_HEX, NULL,0xe0,NULL,HFILL}},
903         { &hf_iuup_spare_ff, { "Spare", "iuup.spare", FT_UINT8, BASE_HEX, NULL,0xff,NULL,HFILL}},
904         { &hf_iuup_spare_bytes, { "Spare", "iuup.spare_bytes", FT_BYTES, BASE_NONE, NULL,0x0,NULL,HFILL}},
905
906         { &hf_iuup_delay, { "Delay", "iuup.delay", FT_UINT32, BASE_HEX, NULL,0x0,NULL,HFILL}},
907         { &hf_iuup_advance, { "Advance", "iuup.advance", FT_UINT32, BASE_HEX, NULL,0x0,NULL,HFILL}},
908         { &hf_iuup_delta, { "Delta Time", "iuup.delta", FT_FLOAT, BASE_NONE, NULL,0x0,NULL,HFILL}},
909
910         { &hf_iuup_init_ti, { "TI", "iuup.ti", FT_UINT8, BASE_DEC, VALS(iuup_ti_vals),0x10,"Timing Information",HFILL}},
911         { &hf_iuup_init_subflows_per_rfci, { "Subflows", "iuup.subflows", FT_UINT8, BASE_DEC, NULL,0x0e,"Number of Subflows",HFILL}},
912         { &hf_iuup_init_chain_ind, { "Chain Indicator", "iuup.chain_ind", FT_UINT8, BASE_DEC, VALS(iuup_init_chain_ind_vals),0x01,NULL,HFILL}},
913         { &hf_iuup_payload, { "Payload Data", "iuup.payload_data", FT_BYTES, BASE_NONE, NULL,0x00,NULL,HFILL}},
914
915
916         { &hf_iuup_mode_versions, { "Iu UP Mode Versions Supported", "iuup.support_mode", FT_UINT16, BASE_HEX, NULL,0x0,NULL,HFILL}},
917
918         { &hf_iuup_mode_versions_a[ 0], { "Version 16", "iuup.support_mode.version16", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x8000,NULL,HFILL}},
919         { &hf_iuup_mode_versions_a[ 1], { "Version 15", "iuup.support_mode.version15", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x4000,NULL,HFILL}},
920         { &hf_iuup_mode_versions_a[ 2], { "Version 14", "iuup.support_mode.version14", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x2000,NULL,HFILL}},
921         { &hf_iuup_mode_versions_a[ 3], { "Version 13", "iuup.support_mode.version13", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x1000,NULL,HFILL}},
922         { &hf_iuup_mode_versions_a[ 4], { "Version 12", "iuup.support_mode.version12", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0800,NULL,HFILL}},
923         { &hf_iuup_mode_versions_a[ 5], { "Version 11", "iuup.support_mode.version11", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0400,NULL,HFILL}},
924         { &hf_iuup_mode_versions_a[ 6], { "Version 10", "iuup.support_mode.version10", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0200,NULL,HFILL}},
925         { &hf_iuup_mode_versions_a[ 7], { "Version  9", "iuup.support_mode.version9", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0100,NULL,HFILL}},
926         { &hf_iuup_mode_versions_a[ 8], { "Version  8", "iuup.support_mode.version8", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0080,NULL,HFILL}},
927         { &hf_iuup_mode_versions_a[ 9], { "Version  7", "iuup.support_mode.version7", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0040,NULL,HFILL}},
928         { &hf_iuup_mode_versions_a[10], { "Version  6", "iuup.support_mode.version6", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0020,NULL,HFILL}},
929         { &hf_iuup_mode_versions_a[11], { "Version  5", "iuup.support_mode.version5", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0010,NULL,HFILL}},
930         { &hf_iuup_mode_versions_a[12], { "Version  4", "iuup.support_mode.version4", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0008,NULL,HFILL}},
931         { &hf_iuup_mode_versions_a[13], { "Version  3", "iuup.support_mode.version3", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0004,NULL,HFILL}},
932         { &hf_iuup_mode_versions_a[14], { "Version  2", "iuup.support_mode.version2", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0002,NULL,HFILL}},
933         { &hf_iuup_mode_versions_a[15], { "Version  1", "iuup.support_mode.version1", FT_UINT16, BASE_HEX, VALS(iuup_mode_version_support),0x0001,NULL,HFILL}},
934
935         { &hf_iuup_num_rfci_ind, { "Number of RFCI Indicators", "iuup.p", FT_UINT8, BASE_HEX, NULL,0x3f,NULL,HFILL}},
936         { &hf_iuup_init_rfci_ind, { "RFCI Initialization", "iuup.rfci.init", FT_BYTES, BASE_NONE, NULL,0x0,NULL,HFILL}},
937
938         HFS_RFCI(0),HFS_RFCI(1),HFS_RFCI(2),HFS_RFCI(3),HFS_RFCI(4),HFS_RFCI(5),HFS_RFCI(6),HFS_RFCI(7),
939         HFS_RFCI(8),HFS_RFCI(9),HFS_RFCI(10),HFS_RFCI(11),HFS_RFCI(12),HFS_RFCI(13),HFS_RFCI(14),HFS_RFCI(15),
940         HFS_RFCI(16),HFS_RFCI(17),HFS_RFCI(18),HFS_RFCI(19),HFS_RFCI(20),HFS_RFCI(21),HFS_RFCI(22),HFS_RFCI(23),
941         HFS_RFCI(24),HFS_RFCI(25),HFS_RFCI(26),HFS_RFCI(27),HFS_RFCI(28),HFS_RFCI(29),HFS_RFCI(30),HFS_RFCI(31),
942         HFS_RFCI(32),HFS_RFCI(33),HFS_RFCI(34),HFS_RFCI(35),HFS_RFCI(36),HFS_RFCI(37),HFS_RFCI(38),HFS_RFCI(39),
943         HFS_RFCI(40),HFS_RFCI(41),HFS_RFCI(42),HFS_RFCI(43),HFS_RFCI(44),HFS_RFCI(45),HFS_RFCI(46),HFS_RFCI(47),
944         HFS_RFCI(48),HFS_RFCI(49),HFS_RFCI(50),HFS_RFCI(51),HFS_RFCI(52),HFS_RFCI(53),HFS_RFCI(54),HFS_RFCI(55),
945         HFS_RFCI(56),HFS_RFCI(57),HFS_RFCI(58),HFS_RFCI(59),HFS_RFCI(60),HFS_RFCI(61),HFS_RFCI(62),HFS_RFCI(63)
946
947     };
948
949
950     gint* ett[] = {
951         &ett_iuup,
952         &ett_rfci,
953         &ett_ipti,
954         &ett_support,
955         &ett_time,
956         &ett_rfciinds,
957         &ett_payload,
958         &ett_payload_subflows
959     };
960
961     static ei_register_info ei[] = {
962         { &ei_iuup_hdr_crc_bad, { "iuup.hdr.crc.bad", PI_CHECKSUM, PI_ERROR, "Bad checksum", EXPFILL }},
963         { &ei_iuup_payload_crc_bad, { "iuup.payload.crc.bad", PI_CHECKSUM, PI_ERROR, "Bad checksum", EXPFILL }},
964         { &ei_iuup_payload_undecoded, { "iuup.payload.undecoded", PI_UNDECODED, PI_WARN, "Undecoded payload", EXPFILL }},
965         { &ei_iuup_error_response, { "iuup.error_response", PI_RESPONSE_CODE, PI_ERROR, "Error response", EXPFILL }},
966         { &ei_iuup_ack_nack, { "iuup.ack.malformed", PI_MALFORMED, PI_ERROR, "Malformed Ack/Nack", EXPFILL }},
967         { &ei_iuup_time_align, { "iuup.time_align.malformed", PI_MALFORMED, PI_ERROR, "Malformed Time Align", EXPFILL }},
968         { &ei_iuup_procedure_indicator, { "iuup.procedure.malformed", PI_MALFORMED, PI_ERROR, "Malformed Procedure", EXPFILL }},
969         { &ei_iuup_pdu_type, { "iuup.pdu_type.malformed", PI_MALFORMED, PI_ERROR, "Malformed PDU Type", EXPFILL }},
970     };
971
972     module_t *iuup_module;
973     expert_module_t* expert_iuup;
974
975     proto_iuup = proto_register_protocol("IuUP", "IuUP", "iuup");
976     proto_register_field_array(proto_iuup, hf, array_length(hf));
977     proto_register_subtree_array(ett, array_length(ett));
978     expert_iuup = expert_register_protocol(proto_iuup);
979     expert_register_field_array(expert_iuup, ei, array_length(ei));
980     iuup_handle = register_dissector("iuup", dissect_iuup, proto_iuup);
981     register_dissector("find_iuup", find_iuup, proto_iuup);
982
983     circuits = wmem_map_new_autoreset(wmem_epan_scope(), wmem_file_scope(), g_direct_hash, g_direct_equal);
984
985     iuup_module = prefs_register_protocol(proto_iuup, proto_reg_handoff_iuup);
986
987     prefs_register_bool_preference(iuup_module, "dissect_payload",
988                                    "Dissect IuUP Payload bits",
989                                    "Whether IuUP Payload bits should be dissected",
990                                    &dissect_fields);
991
992     prefs_register_bool_preference(iuup_module, "two_byte_pseudoheader",
993                                    "Two byte pseudoheader",
994                                    "The payload contains a two byte pseudoheader indicating direction and circuit_id",
995                                    &two_byte_pseudoheader);
996
997     prefs_register_uint_preference(iuup_module, "dynamic.payload.type",
998                                    "IuUP dynamic payload type",
999                                    "The dynamic payload type which will be interpreted as IuUP",
1000                                    10,
1001                                    &global_dynamic_payload_type);
1002 }
1003
1004 /*
1005  * Editor modelines
1006  *
1007  * Local Variables:
1008  * c-basic-offset: 4
1009  * tab-width: 8
1010  * indent-tabs-mode: nil
1011  * End:
1012  *
1013  * ex: set shiftwidth=4 tabstop=8 expandtab:
1014  * :indentSize=4:tabSize=8:noTabs=true:
1015  */