Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1 | /* csn1.cpp |
| 2 | * Routines for CSN1 dissection in wireshark. |
| 3 | * |
| 4 | * Copyright (C) 2011 Ivan Klyuchnikov |
| 5 | * |
| 6 | * By Vincent Helfre, based on original code by Jari Sassi |
| 7 | * with the gracious authorization of STE |
| 8 | * Copyright (c) 2011 ST-Ericsson |
| 9 | * |
| 10 | * $Id: packet-csn1.c 39140 2011-09-25 22:01:50Z wmeier $ |
| 11 | * |
| 12 | * Wireshark - Network traffic analyzer |
| 13 | * By Gerald Combs <gerald@wireshark.org> |
| 14 | * Copyright 1998 Gerald Combs |
| 15 | * |
| 16 | * This program is free software; you can redistribute it and/or |
| 17 | * modify it under the terms of the GNU General Public License |
| 18 | * as published by the Free Software Foundation; either version 2 |
| 19 | * of the License, or (at your option) any later version. |
| 20 | * |
| 21 | * This program is distributed in the hope that it will be useful, |
| 22 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 23 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 24 | * GNU General Public License for more details. |
| 25 | * |
| 26 | * You should have received a copy of the GNU General Public License |
| 27 | * along with this program; if not, write to the Free Software |
| 28 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 29 | */ |
| 30 | |
| 31 | #include <iostream> |
| 32 | #include <cstdlib> |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 33 | #include <assert.h> |
| 34 | #include <string.h> |
Holger Hans Peter Freyther | cf0265a | 2013-07-28 15:57:20 +0200 | [diff] [blame] | 35 | #define __STDC_FORMAT_MACROS |
| 36 | #include <inttypes.h> |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 37 | #include "csn1.h" |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 38 | #include <gprs_debug.h> |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 39 | |
| 40 | |
| 41 | #define pvDATA(_pv, _offset) ((void*) ((unsigned char*)_pv + _offset)) |
| 42 | #define pui8DATA(_pv, _offset) ((guint8*) pvDATA(_pv, _offset)) |
| 43 | #define pui16DATA(_pv, _offset) ((guint16*) pvDATA(_pv, _offset)) |
| 44 | #define pui32DATA(_pv, _offset) ((guint32*) pvDATA(_pv, _offset)) |
| 45 | #define pui64DATA(_pv, _offset) ((guint64*) pvDATA(_pv, _offset)) |
| 46 | /* used to tag existence of next element in variable length lists */ |
| 47 | #define STANDARD_TAG 1 |
| 48 | #define REVERSED_TAG 0 |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 49 | |
| 50 | using namespace std; |
| 51 | static const unsigned char ixBitsTab[] = {0, 1, 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 5}; |
| 52 | |
| 53 | |
| 54 | /* Returns no_of_bits (up to 8) masked with 0x2B */ |
| 55 | |
| 56 | static guint8 |
Ivan Kluchnikov | 9b06ff0 | 2012-06-15 10:13:30 +0400 | [diff] [blame] | 57 | get_masked_bits8( bitvec *vector, unsigned& readIndex, gint bit_offset, const gint no_of_bits) |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 58 | { |
| 59 | static const guint8 maskBits[] = {0x00, 0x01, 0x03, 0x07, 0x0F, 0x1F, 0x3F, 0x7F, 0xFF}; |
| 60 | //gint byte_offset = bit_offset >> 3; /* divide by 8 */ |
| 61 | gint relative_bit_offset = bit_offset & 0x07; /* modulo 8 */ |
| 62 | guint8 result; |
| 63 | gint bit_shift = 8 - relative_bit_offset - (gint) no_of_bits; |
| 64 | readIndex -= relative_bit_offset; |
| 65 | if (bit_shift >= 0) |
| 66 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 67 | result = (0x2B ^ ((guint8)bitvec_read_field(vector, readIndex, 8))) >> bit_shift; |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 68 | readIndex-= bit_shift; |
| 69 | result &= maskBits[no_of_bits]; |
| 70 | } |
| 71 | else |
| 72 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 73 | guint8 hight_part = (0x2B ^ ((guint8)bitvec_read_field(vector, readIndex, 8))) & maskBits[8 - relative_bit_offset]; |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 74 | hight_part = (guint8) (hight_part << (-bit_shift)); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 75 | result = (0x2B ^ ((guint8)bitvec_read_field(vector, readIndex, 8))) >> (8 + bit_shift); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 76 | readIndex = readIndex - (8 - (-bit_shift)); |
| 77 | result |= hight_part; |
| 78 | } |
| 79 | return result; |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * ================================================================================================ |
| 84 | * set initial/start values in help data structure used for packing/unpacking operation |
| 85 | * ================================================================================================ |
| 86 | */ |
| 87 | void |
| 88 | csnStreamInit(csnStream_t* ar, gint bit_offset, gint remaining_bits_len) |
| 89 | { |
| 90 | ar->remaining_bits_len = remaining_bits_len; |
| 91 | ar->bit_offset = bit_offset; |
| 92 | } |
| 93 | |
| 94 | static const char* ErrCodes[] = |
| 95 | { |
| 96 | "General 0", |
| 97 | "General -1", |
| 98 | "DATA_NOT VALID", |
| 99 | "IN SCRIPT", |
| 100 | "INVALID UNION INDEX", |
| 101 | "NEED_MORE BITS TO UNPACK", |
| 102 | "ILLEGAL BIT VALUE", |
| 103 | "Internal", |
| 104 | "STREAM_NOT_SUPPORTED", |
| 105 | "MESSAGE_TOO_LONG" |
| 106 | }; |
| 107 | |
| 108 | static gint16 |
Ivan Kluchnikov | 9b06ff0 | 2012-06-15 10:13:30 +0400 | [diff] [blame] | 109 | ProcessError( unsigned readIndex, const char* sz, gint16 err, const CSN_DESCR* pDescr) |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 110 | { |
| 111 | gint16 i = MIN(-err, ((gint16) ElementsOf(ErrCodes)-1)); |
| 112 | if (i >= 0) |
| 113 | { |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 114 | //LOG(ERR) << sz << "Error code: "<< ErrCodes[i] << pDescr?(pDescr->sz):"-"; |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 115 | } |
| 116 | else |
| 117 | { |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 118 | //LOG(ERR) << sz << ": " << pDescr?(pDescr->sz):"-"; |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 119 | } |
| 120 | return err; |
| 121 | } |
| 122 | |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 123 | |
| 124 | /** |
| 125 | * ================================================================================================ |
| 126 | * Return TRUE if tag in bit stream indicates existence of next list element, |
| 127 | * otherwise return FALSE. |
| 128 | * Will work for tag values equal to both 0 and 1. |
| 129 | * ================================================================================================ |
| 130 | */ |
| 131 | |
| 132 | static gboolean |
Ivan Kluchnikov | 9b06ff0 | 2012-06-15 10:13:30 +0400 | [diff] [blame] | 133 | existNextElement(bitvec *vector, unsigned& readIndex, guint8 Tag) |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 134 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 135 | guint8 res = bitvec_read_field(vector, readIndex, 1); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 136 | if (Tag == STANDARD_TAG) |
| 137 | { |
| 138 | return (res > 0); |
| 139 | } |
| 140 | return (res == 0); |
| 141 | } |
| 142 | |
| 143 | |
| 144 | gint16 |
Ivan Kluchnikov | 9b06ff0 | 2012-06-15 10:13:30 +0400 | [diff] [blame] | 145 | csnStreamDecoder(csnStream_t* ar, const CSN_DESCR* pDescr, bitvec *vector, unsigned& readIndex, void* data) |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 146 | { |
| 147 | gint remaining_bits_len = ar->remaining_bits_len; |
| 148 | gint bit_offset = ar->bit_offset; |
| 149 | guint8* pui8; |
| 150 | guint16* pui16; |
| 151 | guint32* pui32; |
| 152 | guint64* pui64; |
| 153 | guint8 Tag = STANDARD_TAG; |
| 154 | |
| 155 | if (remaining_bits_len <= 0) |
| 156 | { |
| 157 | return 0; |
| 158 | } |
| 159 | |
| 160 | do |
| 161 | { |
| 162 | switch (pDescr->type) |
| 163 | { |
| 164 | case CSN_BIT: |
| 165 | { |
| 166 | if (remaining_bits_len > 0) |
| 167 | { |
| 168 | pui8 = pui8DATA(data, pDescr->offset); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 169 | *pui8 = bitvec_read_field(vector, readIndex, 1); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 170 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 171 | /* end add the bit value to protocol tree */ |
| 172 | } |
Ivan Kluchnikov | 701d9f8 | 2012-10-10 19:43:37 +0400 | [diff] [blame] | 173 | else if(pDescr->may_be_null) |
| 174 | { |
| 175 | pui8 = pui8DATA(data, pDescr->offset); |
| 176 | *pui8 = 0; |
| 177 | LOGPC(DCSN1, LOGL_NOTICE, "%s = NULL | ", pDescr->sz); |
| 178 | } |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 179 | else |
| 180 | { |
| 181 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 182 | } |
| 183 | |
| 184 | pDescr++; |
| 185 | remaining_bits_len--; |
| 186 | bit_offset++; |
| 187 | break; |
| 188 | } |
| 189 | |
| 190 | case CSN_NULL: |
| 191 | { /* Empty member! */ |
| 192 | pDescr++; |
| 193 | break; |
| 194 | } |
| 195 | |
| 196 | case CSN_UINT: |
| 197 | { |
| 198 | guint8 no_of_bits = (guint8) pDescr->i; |
| 199 | |
| 200 | if (remaining_bits_len >= no_of_bits) |
| 201 | { |
| 202 | if (no_of_bits <= 8) |
| 203 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 204 | guint8 ui8 = bitvec_read_field(vector, readIndex, no_of_bits); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 205 | pui8 = pui8DATA(data, pDescr->offset); |
| 206 | *pui8 = ui8; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 207 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 208 | } |
| 209 | else if (no_of_bits <= 16) |
| 210 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 211 | guint16 ui16 = bitvec_read_field(vector, readIndex, no_of_bits); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 212 | pui16 = pui16DATA(data, pDescr->offset); |
| 213 | *pui16 = ui16; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 214 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %d | ", pDescr->sz , *pui16); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 215 | } |
| 216 | else if (no_of_bits <= 32) |
| 217 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 218 | guint32 ui32 = bitvec_read_field(vector, readIndex, no_of_bits); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 219 | pui32 = pui32DATA(data, pDescr->offset); |
| 220 | *pui32 = ui32; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 221 | LOGPC(DCSN1, LOGL_NOTICE, "%s = 0x%08x | ", pDescr->sz , *pui32); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 222 | } |
| 223 | else |
| 224 | { |
| 225 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_GENERAL, pDescr); |
| 226 | } |
Ivan Kluchnikov | 701d9f8 | 2012-10-10 19:43:37 +0400 | [diff] [blame] | 227 | remaining_bits_len -= no_of_bits; |
| 228 | bit_offset += no_of_bits; |
| 229 | } |
| 230 | else if(pDescr->may_be_null) |
| 231 | { |
| 232 | if (no_of_bits <= 8) |
| 233 | { |
| 234 | pui8 = pui8DATA(data, pDescr->offset); |
| 235 | *pui8 = 0; |
| 236 | } |
| 237 | else if (no_of_bits <= 16) |
| 238 | { |
| 239 | pui16 = pui16DATA(data, pDescr->offset); |
| 240 | *pui16 = 0; |
| 241 | } |
| 242 | else if (no_of_bits <= 32) |
| 243 | { |
| 244 | pui32 = pui32DATA(data, pDescr->offset); |
| 245 | *pui32 = 0; |
| 246 | } |
| 247 | LOGPC(DCSN1, LOGL_NOTICE, "%s = NULL | ", pDescr->sz); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 248 | } |
| 249 | else |
| 250 | { |
| 251 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 252 | } |
| 253 | |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 254 | pDescr++; |
| 255 | break; |
| 256 | } |
| 257 | |
| 258 | case CSN_UINT_OFFSET: |
| 259 | { |
| 260 | guint8 no_of_bits = (guint8) pDescr->i; |
| 261 | |
| 262 | if (remaining_bits_len >= no_of_bits) |
| 263 | { |
| 264 | if (no_of_bits <= 8) |
| 265 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 266 | guint8 ui8 = bitvec_read_field(vector, readIndex, no_of_bits); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 267 | pui8 = pui8DATA(data, pDescr->offset); |
| 268 | *pui8 = ui8 + (guint8)pDescr->descr.value; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 269 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 270 | } |
| 271 | else if (no_of_bits <= 16) |
| 272 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 273 | guint16 ui16 = bitvec_read_field(vector, readIndex, no_of_bits); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 274 | pui16 = pui16DATA(data, pDescr->offset); |
| 275 | *pui16 = ui16 + (guint16)pDescr->descr.value; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 276 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %d | ", pDescr->sz , *pui16); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 277 | } |
| 278 | else if (no_of_bits <= 32) |
| 279 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 280 | guint32 ui32 = bitvec_read_field(vector, readIndex, no_of_bits); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 281 | pui32 = pui32DATA(data, pDescr->offset); |
| 282 | *pui32 = ui32 + (guint16)pDescr->descr.value; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 283 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %d | ", pDescr->sz , *pui32); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 284 | } |
| 285 | else |
| 286 | { |
| 287 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_GENERAL, pDescr); |
| 288 | } |
| 289 | } |
| 290 | else |
| 291 | { |
| 292 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 293 | } |
| 294 | |
| 295 | remaining_bits_len -= no_of_bits; |
| 296 | bit_offset += no_of_bits; |
| 297 | pDescr++; |
| 298 | break; |
| 299 | } |
| 300 | |
| 301 | case CSN_UINT_LH: |
| 302 | { |
| 303 | guint8 no_of_bits = (guint8) pDescr->i; |
| 304 | |
| 305 | if (remaining_bits_len >= no_of_bits) |
| 306 | { |
| 307 | remaining_bits_len -= no_of_bits; |
| 308 | if (no_of_bits <= 8) |
| 309 | { |
| 310 | guint8 ui8 = get_masked_bits8(vector, readIndex, bit_offset, no_of_bits); |
| 311 | pui8 = pui8DATA(data, pDescr->offset); |
| 312 | *pui8 = ui8; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 313 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 314 | } |
| 315 | else |
| 316 | {/* Maybe we should support more than 8 bits ? */ |
| 317 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_GENERAL, pDescr); |
| 318 | } |
| 319 | } |
| 320 | else |
| 321 | { |
| 322 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 323 | } |
| 324 | |
| 325 | remaining_bits_len -= no_of_bits; |
| 326 | bit_offset += no_of_bits; |
| 327 | pDescr++; |
| 328 | break; |
| 329 | } |
| 330 | |
| 331 | case CSN_UINT_ARRAY: |
| 332 | { |
| 333 | guint8 no_of_bits = (guint8) pDescr->i; |
| 334 | guint16 nCount = (guint16)pDescr->descr.value; /* nCount supplied by value i.e. M_UINT_ARRAY(...) */ |
| 335 | |
| 336 | if (pDescr->serialize.value != 0) |
| 337 | { /* nCount specified by a reference to field holding value i.e. M_VAR_UINT_ARRAY(...) */ |
| 338 | nCount = *pui16DATA(data, nCount); |
| 339 | } |
| 340 | |
| 341 | if (remaining_bits_len >= no_of_bits) |
| 342 | { |
| 343 | remaining_bits_len -= (no_of_bits*nCount); |
| 344 | if (no_of_bits <= 8) |
| 345 | { |
| 346 | pui8 = pui8DATA(data, pDescr->offset); |
| 347 | do |
| 348 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 349 | *pui8 = bitvec_read_field(vector, readIndex, no_of_bits); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 350 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 351 | pui8++; |
| 352 | bit_offset += no_of_bits; |
| 353 | } while (--nCount > 0); |
| 354 | } |
| 355 | else if (no_of_bits <= 16) |
| 356 | { |
| 357 | return ProcessError(readIndex,"csnStreamDecoder NOTIMPLEMENTED", 999, pDescr); |
| 358 | } |
| 359 | else if (no_of_bits <= 32) |
| 360 | { |
| 361 | return ProcessError(readIndex,"csnStreamDecoder NOTIMPLEMENTED", 999, pDescr); |
| 362 | } |
| 363 | else |
| 364 | { |
| 365 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_GENERAL, pDescr); |
| 366 | } |
| 367 | } |
| 368 | else |
| 369 | { |
| 370 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 371 | } |
| 372 | pDescr++; |
| 373 | break; |
| 374 | } |
| 375 | |
| 376 | case CSN_VARIABLE_TARRAY_OFFSET: |
| 377 | case CSN_VARIABLE_TARRAY: |
| 378 | case CSN_TYPE_ARRAY: |
| 379 | { |
| 380 | gint16 Status; |
| 381 | csnStream_t arT = *ar; |
| 382 | gint16 nCount = pDescr->i; |
| 383 | guint16 nSize = (guint16)(gint32)pDescr->serialize.value; |
| 384 | |
| 385 | pui8 = pui8DATA(data, pDescr->offset); |
| 386 | if (pDescr->type == CSN_VARIABLE_TARRAY) |
| 387 | { /* Count specified in field */ |
| 388 | nCount = *pui8DATA(data, pDescr->i); |
| 389 | } |
| 390 | else if (pDescr->type == CSN_VARIABLE_TARRAY_OFFSET) |
| 391 | { /* Count specified in field */ |
| 392 | nCount = *pui8DATA(data, pDescr->i); |
| 393 | /* nCount--; the 1 offset is already taken into account in CSN_UINT_OFFSET */ |
| 394 | } |
| 395 | |
| 396 | while (nCount > 0) |
| 397 | { /* resulting array of length 0 is possible |
| 398 | * but no bits shall be read from bitstream |
| 399 | */ |
| 400 | |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 401 | LOGPC(DCSN1, LOGL_NOTICE, "%s | ", pDescr->sz); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 402 | csnStreamInit(&arT, bit_offset, remaining_bits_len); |
| 403 | Status = csnStreamDecoder(&arT, (const CSN_DESCR*)pDescr->descr.ptr, vector, readIndex, pui8); |
| 404 | if (Status >= 0) |
| 405 | { |
| 406 | pui8 += nSize; |
| 407 | remaining_bits_len = arT.remaining_bits_len; |
| 408 | bit_offset = arT.bit_offset; |
| 409 | } |
| 410 | else |
| 411 | { |
| 412 | return Status; |
| 413 | } |
| 414 | nCount--; |
| 415 | } |
| 416 | |
| 417 | pDescr++; |
| 418 | break; |
| 419 | } |
| 420 | |
| 421 | case CSN_BITMAP: |
| 422 | { /* bitmap with given length. The result is left aligned! */ |
| 423 | guint8 no_of_bits = (guint8) pDescr->i; /* length of bitmap */ |
| 424 | |
| 425 | if (no_of_bits > 0) |
| 426 | { |
| 427 | |
| 428 | if (no_of_bits <= 32) |
| 429 | { |
Ivan Kluchnikov | 74b459f | 2012-04-11 22:02:15 +0400 | [diff] [blame] | 430 | for(unsigned ib = 0; ib < 4; ib++) |
| 431 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 432 | guint8 ui8 = bitvec_read_field(vector, readIndex, 8); |
Ivan Kluchnikov | 74b459f | 2012-04-11 22:02:15 +0400 | [diff] [blame] | 433 | pui8 = pui8DATA(data, pDescr->offset+ib); |
| 434 | *pui8 = ui8; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 435 | LOGPC(DCSN1, LOGL_NOTICE, "%s[%u] = %u | ", pDescr->sz , ib, (unsigned)*pui8); |
Ivan Kluchnikov | 74b459f | 2012-04-11 22:02:15 +0400 | [diff] [blame] | 436 | } |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 437 | } |
| 438 | else if (no_of_bits <= 64) |
| 439 | { |
Ivan Kluchnikov | 74b459f | 2012-04-11 22:02:15 +0400 | [diff] [blame] | 440 | for(unsigned ib = 0; ib < 8; ib++) |
| 441 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 442 | guint8 ui8 = bitvec_read_field(vector, readIndex, 8); |
Ivan Kluchnikov | 74b459f | 2012-04-11 22:02:15 +0400 | [diff] [blame] | 443 | pui8 = pui8DATA(data, pDescr->offset+ib); |
| 444 | *pui8 = ui8; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 445 | LOGPC(DCSN1, LOGL_NOTICE, "%s[%u] = %u | ", pDescr->sz , ib, (unsigned)*pui8); |
Ivan Kluchnikov | 74b459f | 2012-04-11 22:02:15 +0400 | [diff] [blame] | 446 | } |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 447 | } |
| 448 | else |
| 449 | { |
| 450 | return ProcessError(readIndex,"csnStreamDecoder NOT IMPLEMENTED", 999, pDescr); |
| 451 | } |
| 452 | |
| 453 | remaining_bits_len -= no_of_bits; |
| 454 | assert(remaining_bits_len >= 0); |
| 455 | bit_offset += no_of_bits; |
| 456 | } |
| 457 | /* bitmap was successfully extracted or it was empty */ |
| 458 | |
| 459 | pDescr++; |
| 460 | break; |
| 461 | } |
| 462 | |
| 463 | case CSN_TYPE: |
| 464 | { |
| 465 | gint16 Status; |
| 466 | csnStream_t arT = *ar; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 467 | LOGPC(DCSN1, LOGL_NOTICE, " : %s | ", pDescr->sz); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 468 | csnStreamInit(&arT, bit_offset, remaining_bits_len); |
| 469 | Status = csnStreamDecoder(&arT, (const CSN_DESCR*)pDescr->descr.ptr, vector, readIndex, pvDATA(data, pDescr->offset)); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 470 | LOGPC(DCSN1, LOGL_NOTICE, ": End %s | ", pDescr->sz); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 471 | if (Status >= 0) |
| 472 | { |
| 473 | remaining_bits_len = arT.remaining_bits_len; |
| 474 | bit_offset = arT.bit_offset; |
| 475 | pDescr++; |
| 476 | } |
| 477 | else |
| 478 | { |
| 479 | /* Has already been processed: ProcessError("csnStreamDecoder", Status, pDescr); */ |
| 480 | return Status; |
| 481 | } |
| 482 | |
| 483 | break; |
| 484 | } |
| 485 | |
| 486 | case CSN_CHOICE: |
| 487 | { |
| 488 | gint16 count = pDescr->i; |
| 489 | guint8 i = 0; |
| 490 | CSN_ChoiceElement_t* pChoice = (CSN_ChoiceElement_t*) pDescr->descr.ptr; |
| 491 | |
| 492 | while (count > 0) |
| 493 | { |
| 494 | guint8 no_of_bits = pChoice->bits; |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 495 | guint8 value = bitvec_read_field(vector, readIndex, no_of_bits); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 496 | if (value == pChoice->value) |
| 497 | { |
| 498 | CSN_DESCR descr[2]; |
| 499 | gint16 Status; |
| 500 | csnStream_t arT = *ar; |
| 501 | |
| 502 | descr[0] = pChoice->descr; |
| 503 | memset(&descr[1], 0x00, sizeof(CSN_DESCR)); |
| 504 | descr[1].type = CSN_END; |
| 505 | pui8 = pui8DATA(data, pDescr->offset); |
| 506 | *pui8 = i; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 507 | LOGPC(DCSN1, LOGL_NOTICE, "Choice %s = %u | ", pDescr->sz , (unsigned)value); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 508 | bit_offset += no_of_bits; |
| 509 | remaining_bits_len -= no_of_bits; |
| 510 | |
| 511 | csnStreamInit(&arT, bit_offset, remaining_bits_len); |
| 512 | Status = csnStreamDecoder(&arT, descr, vector, readIndex, data); |
| 513 | |
| 514 | if (Status >= 0) |
| 515 | { |
| 516 | remaining_bits_len = arT.remaining_bits_len; |
| 517 | bit_offset = arT.bit_offset; |
| 518 | } |
| 519 | else |
| 520 | { |
| 521 | return Status; |
| 522 | } |
| 523 | break; |
| 524 | } |
| 525 | |
| 526 | readIndex -= no_of_bits; |
| 527 | count--; |
| 528 | pChoice++; |
| 529 | i++; |
| 530 | } |
| 531 | |
| 532 | pDescr++; |
| 533 | break; |
| 534 | } |
| 535 | |
| 536 | case CSN_SERIALIZE: |
| 537 | { |
| 538 | StreamSerializeFcn_t serialize = pDescr->serialize.fcn; |
| 539 | csnStream_t arT = *ar; |
Ivan Kluchnikov | 701d9f8 | 2012-10-10 19:43:37 +0400 | [diff] [blame] | 540 | guint8 length_len = pDescr->i; |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 541 | gint16 Status = -1; |
| 542 | |
Ivan Kluchnikov | 701d9f8 | 2012-10-10 19:43:37 +0400 | [diff] [blame] | 543 | guint8 length = bitvec_read_field(vector, readIndex, length_len); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 544 | |
Ivan Kluchnikov | 701d9f8 | 2012-10-10 19:43:37 +0400 | [diff] [blame] | 545 | LOGPC(DCSN1, LOGL_NOTICE, "%s length = %d | ", pDescr->sz , (int)length); |
| 546 | arT.direction = 1; |
| 547 | bit_offset += length_len; |
| 548 | remaining_bits_len -= length_len; |
| 549 | |
| 550 | csnStreamInit(&arT, bit_offset, length); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 551 | Status = serialize(&arT, vector, readIndex, pvDATA(data, pDescr->offset)); |
| 552 | |
| 553 | if (Status >= 0) |
| 554 | { |
Ivan Kluchnikov | 701d9f8 | 2012-10-10 19:43:37 +0400 | [diff] [blame] | 555 | remaining_bits_len -= length; |
| 556 | bit_offset += length; |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 557 | pDescr++; |
| 558 | } |
| 559 | else |
| 560 | { |
| 561 | /* Has already been processed: */ |
| 562 | return Status; |
| 563 | } |
| 564 | |
| 565 | break; |
| 566 | } |
| 567 | |
| 568 | case CSN_UNION_LH: |
| 569 | case CSN_UNION: |
| 570 | { |
| 571 | gint16 Bits; |
| 572 | guint8 index; |
| 573 | gint16 count = pDescr->i; |
| 574 | const CSN_DESCR* pDescrNext = pDescr; |
| 575 | |
| 576 | pDescrNext += count + 1; /* now this is next after the union */ |
| 577 | if ((count <= 0) || (count > 16)) |
| 578 | { |
| 579 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_INVALID_UNION_INDEX, pDescr); |
| 580 | } |
| 581 | |
| 582 | /* Now get the bits to extract the index */ |
| 583 | Bits = ixBitsTab[count]; |
| 584 | index = 0; |
| 585 | |
| 586 | while (Bits > 0) |
| 587 | { |
| 588 | index <<= 1; |
| 589 | |
| 590 | if (CSN_UNION_LH == pDescr->type) |
| 591 | { |
| 592 | index |= get_masked_bits8(vector,readIndex, bit_offset, 1); |
| 593 | } |
| 594 | else |
| 595 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 596 | index |= bitvec_read_field(vector, readIndex, 1); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 597 | } |
| 598 | remaining_bits_len--; |
| 599 | bit_offset++; |
| 600 | Bits--; |
| 601 | } |
| 602 | |
| 603 | /* Assign UnionType */ |
| 604 | pui8 = pui8DATA(data, pDescr->offset); |
| 605 | *pui8 = index; |
| 606 | |
| 607 | |
| 608 | /* script index to continue on, limited in case we do not have a power of 2 */ |
| 609 | pDescr += (MIN(index + 1, count)); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 610 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 611 | |
| 612 | switch (pDescr->type) |
| 613 | { /* get the right element of the union based on computed index */ |
| 614 | |
| 615 | case CSN_BIT: |
| 616 | { |
| 617 | pui8 = pui8DATA(data, pDescr->offset); |
| 618 | *pui8 = 0x00; |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 619 | if (bitvec_read_field(vector, readIndex, 1) > 0) |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 620 | { |
| 621 | *pui8 = 0x01; |
| 622 | } |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 623 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 624 | remaining_bits_len -= 1; |
| 625 | bit_offset++; |
| 626 | pDescr++; |
| 627 | break; |
| 628 | } |
| 629 | |
| 630 | case CSN_NULL: |
| 631 | { /* Empty member! */ |
| 632 | pDescr++; |
| 633 | break; |
| 634 | } |
| 635 | |
| 636 | case CSN_UINT: |
| 637 | { |
| 638 | guint8 no_of_bits = (guint8) pDescr->i; |
| 639 | if (remaining_bits_len >= no_of_bits) |
| 640 | { |
| 641 | remaining_bits_len -= no_of_bits; |
| 642 | |
| 643 | if (no_of_bits <= 8) |
| 644 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 645 | guint8 ui8 = bitvec_read_field(vector, readIndex, no_of_bits); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 646 | pui8 = pui8DATA(data, pDescr->offset); |
| 647 | *pui8 = ui8; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 648 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 649 | } |
| 650 | else if (no_of_bits <= 16) |
| 651 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 652 | guint16 ui16 = bitvec_read_field(vector, readIndex, no_of_bits); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 653 | pui16 = pui16DATA(data, pDescr->offset); |
| 654 | *pui16 = ui16; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 655 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %d | ", pDescr->sz , *pui16); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 656 | } |
| 657 | else if (no_of_bits <= 32) |
| 658 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 659 | guint32 ui32 = bitvec_read_field(vector, readIndex, no_of_bits); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 660 | pui32 = pui32DATA(data, pDescr->offset); |
| 661 | *pui32 = ui32; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 662 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %d | ", pDescr->sz , *pui32); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 663 | } |
| 664 | else |
| 665 | { |
| 666 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_GENERAL, pDescr); |
| 667 | } |
| 668 | } |
| 669 | else |
| 670 | { |
| 671 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_GENERAL, pDescr); |
| 672 | } |
| 673 | |
| 674 | bit_offset += no_of_bits; |
| 675 | pDescr++; |
| 676 | break; |
| 677 | } |
| 678 | |
| 679 | case CSN_UINT_OFFSET: |
| 680 | { |
| 681 | guint8 no_of_bits = (guint8) pDescr->i; |
| 682 | |
| 683 | if (remaining_bits_len >= no_of_bits) |
| 684 | { |
| 685 | if (no_of_bits <= 8) |
| 686 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 687 | guint8 ui8 = bitvec_read_field(vector, readIndex, no_of_bits); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 688 | pui8 = pui8DATA(data, pDescr->offset); |
| 689 | *pui8 = ui8 + (guint8)pDescr->descr.value; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 690 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 691 | } |
| 692 | else if (no_of_bits <= 16) |
| 693 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 694 | guint16 ui16 = bitvec_read_field(vector, readIndex, no_of_bits); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 695 | pui16 = pui16DATA(data, pDescr->offset); |
| 696 | *pui16 = ui16 + (guint16)pDescr->descr.value; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 697 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %d | ", pDescr->sz , *pui16); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 698 | } |
| 699 | else if (no_of_bits <= 32) |
| 700 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 701 | guint32 ui32 = bitvec_read_field(vector, readIndex, no_of_bits); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 702 | pui32 = pui32DATA(data, pDescr->offset); |
| 703 | *pui32 = ui32 + (guint16)pDescr->descr.value; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 704 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %d | ", pDescr->sz , *pui32); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 705 | } |
| 706 | else |
| 707 | { |
| 708 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_GENERAL, pDescr); |
| 709 | } |
| 710 | } |
| 711 | else |
| 712 | { |
| 713 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 714 | } |
| 715 | |
| 716 | bit_offset += no_of_bits; |
| 717 | pDescr++; |
| 718 | break; |
| 719 | } |
| 720 | |
| 721 | case CSN_UINT_LH: |
| 722 | { |
| 723 | guint8 no_of_bits = (guint8) pDescr->i; |
| 724 | |
| 725 | if (remaining_bits_len >= no_of_bits) |
| 726 | { |
| 727 | if (no_of_bits <= 8) |
| 728 | { |
| 729 | guint8 ui8 = get_masked_bits8(vector, readIndex, bit_offset, no_of_bits); |
| 730 | pui8 = pui8DATA(data, pDescr->offset); |
| 731 | *pui8 = ui8; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 732 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 733 | } |
| 734 | else |
| 735 | { /* Maybe we should support more than 8 bits ? */ |
| 736 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_GENERAL, pDescr); |
| 737 | } |
| 738 | } |
| 739 | else |
| 740 | { |
| 741 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 742 | } |
| 743 | |
| 744 | bit_offset += no_of_bits; |
| 745 | pDescr++; |
| 746 | break; |
| 747 | } |
| 748 | |
| 749 | case CSN_UINT_ARRAY: |
| 750 | { |
| 751 | guint8 no_of_bits = (guint8) pDescr->i; |
| 752 | guint16 nCount = (guint16)pDescr->descr.value; /* nCount supplied by value i.e. M_UINT_ARRAY(...) */ |
| 753 | |
| 754 | if (pDescr->serialize.value != 0) |
| 755 | { /* nCount specified by a reference to field holding value i.e. M_VAR_UINT_ARRAY(...) */ |
| 756 | nCount = *pui16DATA(data, nCount); |
| 757 | } |
| 758 | |
| 759 | if (remaining_bits_len >= no_of_bits) |
| 760 | { |
| 761 | remaining_bits_len -= (no_of_bits * nCount); |
| 762 | if (no_of_bits <= 8) |
| 763 | { |
| 764 | pui8 = pui8DATA(data, pDescr->offset); |
| 765 | |
| 766 | while (nCount > 0) |
| 767 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 768 | *pui8 = bitvec_read_field(vector, readIndex, no_of_bits); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 769 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 770 | pui8++; |
| 771 | bit_offset += no_of_bits; |
| 772 | nCount--; |
| 773 | } |
| 774 | } |
| 775 | else if (no_of_bits <= 16) |
| 776 | { |
| 777 | pui16 = pui16DATA(data, pDescr->offset); |
| 778 | |
| 779 | while (nCount > 0) |
| 780 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 781 | *pui16 = bitvec_read_field(vector, readIndex, no_of_bits); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 782 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , *pui16); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 783 | pui16++; |
| 784 | bit_offset += no_of_bits; |
| 785 | nCount--; |
| 786 | } |
| 787 | } |
| 788 | else if (no_of_bits <= 32) |
| 789 | { /* not supported */ |
| 790 | return ProcessError(readIndex,"csnStreamDecoder NOT IMPLEMENTED", 999, pDescr); |
| 791 | } |
| 792 | else |
| 793 | { |
| 794 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_GENERAL, pDescr); |
| 795 | } |
| 796 | } |
| 797 | else |
| 798 | { |
| 799 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 800 | } |
| 801 | |
| 802 | pDescr++; |
| 803 | break; |
| 804 | } |
| 805 | |
| 806 | case CSN_VARIABLE_TARRAY_OFFSET: |
| 807 | case CSN_VARIABLE_TARRAY: |
| 808 | case CSN_TYPE_ARRAY: |
| 809 | { |
| 810 | gint16 Status; |
| 811 | csnStream_t arT = *ar; |
| 812 | guint16 nCount = (guint16) pDescr->i; |
| 813 | guint16 nSize = (guint16)(guint32)pDescr->serialize.value; |
| 814 | |
| 815 | pui8 = pui8DATA(data, pDescr->offset); |
| 816 | |
| 817 | if (CSN_VARIABLE_TARRAY == pDescr->type) |
| 818 | { /* Count specified in field */ |
| 819 | nCount = *pui8DATA(data, pDescr->i); |
| 820 | } |
| 821 | else if (CSN_VARIABLE_TARRAY_OFFSET == pDescr->type) |
| 822 | { /* Count specified in field */ |
| 823 | nCount = *pui8DATA(data, pDescr->i); |
| 824 | nCount--; /* Offset 1 */ |
| 825 | } |
| 826 | |
| 827 | while (nCount--) /* Changed to handle length = 0. */ |
| 828 | { |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 829 | LOGPC(DCSN1, LOGL_NOTICE, "%s | ", pDescr->sz); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 830 | csnStreamInit(&arT, bit_offset, remaining_bits_len); |
| 831 | Status = csnStreamDecoder(&arT, (const CSN_DESCR*)pDescr->descr.ptr, vector, readIndex, pui8); |
| 832 | if (Status >= 0) |
| 833 | { |
| 834 | pui8 += nSize; |
| 835 | remaining_bits_len = arT.remaining_bits_len; |
| 836 | bit_offset = arT.bit_offset; |
| 837 | } |
| 838 | else |
| 839 | { |
| 840 | return Status; |
| 841 | } |
| 842 | } |
| 843 | |
| 844 | pDescr++; |
| 845 | break; |
| 846 | } |
| 847 | |
| 848 | case CSN_BITMAP: |
| 849 | { /* bitmap with given length. The result is left aligned! */ |
| 850 | guint8 no_of_bits = (guint8) pDescr->i; /* length of bitmap */ |
| 851 | |
| 852 | if (no_of_bits > 0) |
| 853 | { |
| 854 | |
| 855 | if (no_of_bits <= 32) |
| 856 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 857 | guint32 ui32 = bitvec_read_field(vector, readIndex, no_of_bits); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 858 | pui32 = pui32DATA(data, pDescr->offset); |
| 859 | *pui32 = ui32; |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 860 | } |
| 861 | else if (no_of_bits <= 64) |
| 862 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 863 | guint64 ui64 = bitvec_read_field(vector, readIndex, no_of_bits); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 864 | pui64 = pui64DATA(data, pDescr->offset); |
| 865 | *pui64 = ui64; |
Holger Hans Peter Freyther | cf0265a | 2013-07-28 15:57:20 +0200 | [diff] [blame] | 866 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %lu | ", pDescr->sz , *pui64); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 867 | } |
| 868 | else |
| 869 | { |
| 870 | return ProcessError(readIndex,"csnStreamDecoder NOT IMPLEMENTED", 999, pDescr); |
| 871 | } |
| 872 | |
| 873 | remaining_bits_len -= no_of_bits; |
| 874 | assert(remaining_bits_len >= 0); |
| 875 | bit_offset += no_of_bits; |
| 876 | } |
| 877 | /* bitmap was successfully extracted or it was empty */ |
| 878 | |
| 879 | pDescr++; |
| 880 | break; |
| 881 | } |
| 882 | |
| 883 | case CSN_TYPE: |
| 884 | { |
| 885 | gint16 Status; |
| 886 | csnStream_t arT = *ar; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 887 | LOGPC(DCSN1, LOGL_NOTICE, " : %s | ", pDescr->sz); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 888 | csnStreamInit(&arT, bit_offset, remaining_bits_len); |
| 889 | Status = csnStreamDecoder(&arT, (const CSN_DESCR*)pDescr->descr.ptr, vector, readIndex, pvDATA(data, pDescr->offset)); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 890 | LOGPC(DCSN1, LOGL_NOTICE, " : End %s | ", pDescr->sz); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 891 | if (Status >= 0) |
| 892 | { |
| 893 | remaining_bits_len = arT.remaining_bits_len; |
| 894 | bit_offset = arT.bit_offset; |
| 895 | pDescr++; |
| 896 | } |
| 897 | else |
| 898 | { /* return error code Has already been processed: */ |
| 899 | return Status; |
| 900 | } |
| 901 | |
| 902 | break; |
| 903 | } |
| 904 | |
| 905 | default: |
| 906 | { /* descriptions of union elements other than above are illegal */ |
| 907 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_IN_SCRIPT, pDescr); |
| 908 | } |
| 909 | } |
| 910 | |
| 911 | pDescr = pDescrNext; |
| 912 | break; |
| 913 | } |
| 914 | |
| 915 | case CSN_EXIST: |
| 916 | case CSN_EXIST_LH: |
| 917 | { |
| 918 | guint8 fExist; |
| 919 | |
| 920 | pui8 = pui8DATA(data, pDescr->offset); |
| 921 | |
| 922 | if (CSN_EXIST_LH == pDescr->type) |
| 923 | { |
| 924 | fExist = get_masked_bits8(vector, readIndex, bit_offset, 1); |
| 925 | } |
| 926 | else |
| 927 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 928 | fExist = bitvec_read_field(vector, readIndex, 1); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 929 | } |
| 930 | |
| 931 | *pui8 = fExist; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 932 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 933 | pDescr++; |
| 934 | remaining_bits_len -= 1; |
| 935 | |
| 936 | if (!fExist) |
| 937 | { |
| 938 | ar->remaining_bits_len = remaining_bits_len; |
| 939 | ar->bit_offset = bit_offset; |
| 940 | return remaining_bits_len; |
| 941 | } |
| 942 | |
| 943 | break; |
| 944 | } |
| 945 | |
| 946 | case CSN_NEXT_EXIST: |
| 947 | { |
| 948 | guint8 fExist; |
| 949 | |
| 950 | pui8 = pui8DATA(data, pDescr->offset); |
| 951 | |
| 952 | /* this if-statement represents the M_NEXT_EXIST_OR_NULL description element */ |
Ivan Kluchnikov | 701d9f8 | 2012-10-10 19:43:37 +0400 | [diff] [blame] | 953 | if ((pDescr->may_be_null) && (remaining_bits_len == 0)) |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 954 | { /* no more bits to decode is fine here - end of message detected and allowed */ |
| 955 | |
| 956 | /* Skip i entries + this entry */ |
| 957 | pDescr += pDescr->i + 1; |
| 958 | |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 959 | /* Set the data member to "not exist" */ |
| 960 | *pui8 = 0; |
| 961 | break; |
| 962 | } |
| 963 | |
| 964 | /* the "regular" M_NEXT_EXIST description element */ |
| 965 | |
| 966 | fExist = 0x00; |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 967 | if (bitvec_read_field(vector, readIndex, 1)) |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 968 | { |
| 969 | fExist = 0x01; |
| 970 | } |
| 971 | |
| 972 | *pui8 = fExist; |
| 973 | remaining_bits_len -= 1; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 974 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 975 | ++bit_offset; |
| 976 | |
| 977 | if (fExist == 0) |
| 978 | { /* Skip 'i' entries */ |
| 979 | pDescr += pDescr->i; |
| 980 | } |
| 981 | |
| 982 | pDescr++; |
| 983 | break; |
| 984 | } |
| 985 | |
| 986 | case CSN_NEXT_EXIST_LH: |
| 987 | { |
| 988 | guint8 fExist; |
| 989 | pui8 = pui8DATA(data, pDescr->offset); |
| 990 | |
| 991 | /* this if-statement represents the M_NEXT_EXIST_OR_NULL_LH description element */ |
| 992 | if ((pDescr->descr.ptr != NULL) && (remaining_bits_len == 0)) |
| 993 | { /* no more bits to decode is fine here - end of message detected and allowed */ |
| 994 | |
| 995 | /* skip 'i' entries + this entry */ |
| 996 | pDescr += pDescr->i + 1; |
| 997 | |
| 998 | /* pDescr now must be pointing to a CSN_END entry, if not this is an error */ |
| 999 | if ( pDescr->type != CSN_END ) |
| 1000 | { /* substract one more bit from remaining_bits_len to make the "not enough bits" error to be triggered */ |
| 1001 | remaining_bits_len--; |
| 1002 | } |
| 1003 | |
| 1004 | /* set the data member to "not exist" */ |
| 1005 | *pui8 = 0; |
| 1006 | break; |
| 1007 | } |
| 1008 | |
| 1009 | /* the "regular" M_NEXT_EXIST_LH description element */ |
| 1010 | fExist = get_masked_bits8(vector,readIndex,bit_offset, 1); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1011 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)fExist); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1012 | *pui8++ = fExist; |
| 1013 | remaining_bits_len -= 1; |
| 1014 | |
| 1015 | bit_offset++; |
| 1016 | |
| 1017 | if (fExist == 0) |
| 1018 | { /* Skip 'i' entries */ |
| 1019 | pDescr += pDescr->i; |
| 1020 | } |
| 1021 | pDescr++; |
| 1022 | |
| 1023 | break; |
| 1024 | } |
| 1025 | |
| 1026 | case CSN_VARIABLE_BITMAP_1: |
| 1027 | { /* Bitmap from here and to the end of message */ |
| 1028 | |
| 1029 | *pui8DATA(data, (gint16)pDescr->descr.value) = (guint8) remaining_bits_len; /* length of bitmap == remaining bits */ |
| 1030 | |
| 1031 | /*no break - |
| 1032 | * with a length set we have a regular variable length bitmap so we continue */ |
| 1033 | } |
| 1034 | |
| 1035 | case CSN_VARIABLE_BITMAP: |
| 1036 | { /* {CSN_VARIABLE_BITMAP, 0, offsetof(_STRUCT, _ElementCountField), offsetof(_STRUCT, _MEMBER), #_MEMBER} |
| 1037 | * <N: bit (5)> <bitmap: bit(N + offset)> |
| 1038 | * Bit array with length (in bits) specified in parameter (pDescr->descr) |
| 1039 | * The result is right aligned! |
| 1040 | */ |
| 1041 | gint16 no_of_bits = *pui8DATA(data, (gint16)pDescr->descr.value); |
| 1042 | |
| 1043 | no_of_bits += pDescr->i; /* adjusted by offset */ |
| 1044 | |
| 1045 | if (no_of_bits > 0) |
| 1046 | { |
| 1047 | remaining_bits_len -= no_of_bits; |
| 1048 | |
| 1049 | if (remaining_bits_len < 0) |
| 1050 | { |
| 1051 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 1052 | } |
| 1053 | |
| 1054 | { /* extract bits */ |
| 1055 | guint8* pui8 = pui8DATA(data, pDescr->offset); |
| 1056 | gint16 nB1 = no_of_bits & 0x07;/* no_of_bits Mod 8 */ |
| 1057 | |
| 1058 | if (nB1 > 0) |
| 1059 | { /* take care of the first byte - it will be right aligned */ |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1060 | *pui8 = bitvec_read_field(vector, readIndex, nB1); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1061 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1062 | pui8++; |
| 1063 | no_of_bits -= nB1; |
| 1064 | bit_offset += nB1; /* (nB1 is no_of_bits Mod 8) */ |
| 1065 | } |
| 1066 | |
| 1067 | /* remaining no_of_bits is a multiple of 8 or 0 */ |
| 1068 | while (no_of_bits > 0) |
| 1069 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1070 | *pui8 = bitvec_read_field(vector, readIndex, 8); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1071 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1072 | pui8++; |
| 1073 | no_of_bits -= 8; |
| 1074 | } |
| 1075 | } |
| 1076 | } |
| 1077 | pDescr++; |
| 1078 | break; |
| 1079 | } |
| 1080 | |
| 1081 | case CSN_LEFT_ALIGNED_VAR_BMP_1: |
| 1082 | { /* Bitmap from here and to the end of message */ |
| 1083 | |
| 1084 | *pui8DATA(data, (gint16)pDescr->descr.value) = (guint8) remaining_bits_len; /* length of bitmap == remaining bits */ |
| 1085 | |
| 1086 | /* no break - |
| 1087 | * with a length set we have a regular left aligned variable length bitmap so we continue |
| 1088 | */ |
| 1089 | } |
| 1090 | |
| 1091 | case CSN_LEFT_ALIGNED_VAR_BMP: |
| 1092 | { /* {CSN_LEFT_ALIGNED_VAR_BMP, _OFFSET, (void*)offsetof(_STRUCT, _ElementCountField), offsetof(_STRUCT, _MEMBER), #_MEMBER} |
| 1093 | * <N: bit (5)> <bitmap: bit(N + offset)> |
| 1094 | * bit array with length (in bits) specified in parameter (pDescr->descr) |
| 1095 | */ |
| 1096 | gint16 no_of_bits = *pui8DATA(data, (gint16)pDescr->descr.value);/* Size of bitmap */ |
| 1097 | |
| 1098 | no_of_bits += pDescr->i;/* size adjusted by offset */ |
| 1099 | |
| 1100 | if (no_of_bits > 0) |
| 1101 | { |
| 1102 | remaining_bits_len -= no_of_bits; |
| 1103 | |
| 1104 | if (remaining_bits_len < 0) |
| 1105 | { |
| 1106 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 1107 | } |
| 1108 | |
| 1109 | { /* extract bits */ |
| 1110 | guint8* pui8 = pui8DATA(data, pDescr->offset); |
| 1111 | gint16 nB1 = no_of_bits & 0x07;/* no_of_bits Mod 8 */ |
| 1112 | |
| 1113 | while (no_of_bits > 0) |
| 1114 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1115 | *pui8 = bitvec_read_field(vector, readIndex, 8); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1116 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1117 | pui8++; |
| 1118 | no_of_bits -= 8; |
| 1119 | } |
| 1120 | if (nB1 > 0) |
| 1121 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1122 | *pui8 = bitvec_read_field(vector, readIndex, nB1); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1123 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1124 | pui8++; |
| 1125 | no_of_bits -= nB1; |
| 1126 | bit_offset += nB1; /* (nB1 is no_of_bits Mod 8) */ |
| 1127 | } |
| 1128 | } |
| 1129 | } |
| 1130 | |
| 1131 | /* bitmap was successfully extracted or it was empty */ |
| 1132 | pDescr++; |
| 1133 | break; |
| 1134 | } |
| 1135 | |
Ivan Kluchnikov | 701d9f8 | 2012-10-10 19:43:37 +0400 | [diff] [blame] | 1136 | case CSN_PADDING_BITS: |
| 1137 | { /* Padding from here and to the end of message */ |
| 1138 | LOGPC(DCSN1, LOGL_NOTICE, "%s = ", pDescr->sz); |
| 1139 | if (remaining_bits_len > 0) |
| 1140 | { |
| 1141 | while (remaining_bits_len > 0) |
| 1142 | { |
| 1143 | guint8 bits_to_handle = remaining_bits_len%8; |
| 1144 | if (bits_to_handle > 0) |
| 1145 | { |
Holger Hans Peter Freyther | cf0265a | 2013-07-28 15:57:20 +0200 | [diff] [blame] | 1146 | LOGPC(DCSN1, LOGL_NOTICE, "%"PRIu64"|", bitvec_read_field(vector, readIndex, bits_to_handle)); |
Ivan Kluchnikov | 701d9f8 | 2012-10-10 19:43:37 +0400 | [diff] [blame] | 1147 | remaining_bits_len -= bits_to_handle; |
| 1148 | bit_offset += bits_to_handle; |
| 1149 | } |
| 1150 | else if (bits_to_handle == 0) |
| 1151 | { |
Holger Hans Peter Freyther | cf0265a | 2013-07-28 15:57:20 +0200 | [diff] [blame] | 1152 | LOGPC(DCSN1, LOGL_NOTICE, "%"PRIu64"|", bitvec_read_field(vector, readIndex, 8)); |
Ivan Kluchnikov | 701d9f8 | 2012-10-10 19:43:37 +0400 | [diff] [blame] | 1153 | remaining_bits_len -= 8; |
| 1154 | bit_offset += 8; |
| 1155 | } |
| 1156 | } |
| 1157 | } |
| 1158 | if (remaining_bits_len < 0) |
| 1159 | { |
| 1160 | return ProcessError(readIndex,"csnStreamDissector", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 1161 | } |
| 1162 | |
| 1163 | /* Padding was successfully extracted or it was empty */ |
| 1164 | pDescr++; |
| 1165 | break; |
| 1166 | } |
| 1167 | |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1168 | case CSN_VARIABLE_ARRAY: |
| 1169 | { /* {int type; int i; void* descr; int offset; const char* sz; } CSN_DESCR; |
| 1170 | * {CSN_VARIABLE_ARRAY, _OFFSET, (void*)offsetof(_STRUCT, _ElementCountField), offsetof(_STRUCT, _MEMBER), #_MEMBER} |
| 1171 | * Array with length specified in parameter: |
| 1172 | * <count: bit (x)> |
| 1173 | * <list: octet(count + offset)> |
| 1174 | */ |
| 1175 | gint16 count = *pui8DATA(data, (gint16)pDescr->descr.value); |
| 1176 | |
| 1177 | count += pDescr->i; /* Adjusted by offset */ |
| 1178 | |
| 1179 | if (count > 0) |
| 1180 | { |
| 1181 | remaining_bits_len -= count * 8; |
| 1182 | |
| 1183 | if (remaining_bits_len < 0) |
| 1184 | { |
| 1185 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 1186 | } |
| 1187 | |
| 1188 | pui8 = pui8DATA(data, pDescr->offset); |
| 1189 | |
| 1190 | while (count > 0) |
| 1191 | { |
| 1192 | readIndex -= 8; |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1193 | *pui8 = bitvec_read_field(vector, readIndex, 8); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1194 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1195 | pui8++; |
| 1196 | bit_offset += 8; |
| 1197 | count--; |
| 1198 | } |
| 1199 | } |
| 1200 | |
| 1201 | pDescr++; |
| 1202 | break; |
| 1203 | } |
| 1204 | |
| 1205 | case CSN_RECURSIVE_ARRAY: |
| 1206 | { /* Recursive way to specify an array: <list> ::= {1 <number: bit (4)> <list> | 0} |
| 1207 | * or more generally: <list> ::= { <tag> <element> <list> | <EndTag> } |
| 1208 | * where <element> ::= bit(value) |
| 1209 | * <tag> ::= 0 | 1 |
| 1210 | * <EndTag> ::= reversed tag i.e. tag == 1 -> EndTag == 0 and vice versa |
| 1211 | * {CSN_RECURSIVE_ARRAY, _BITS, (void*)offsetof(_STRUCT, _ElementCountField), offsetof(_STRUCT, _MEMBER), #_MEMBER} |
| 1212 | * REMARK: recursive way to specify an array but an iterative implementation! |
| 1213 | */ |
| 1214 | gint16 no_of_bits = pDescr->i; |
| 1215 | guint8 ElementCount = 0; |
| 1216 | |
| 1217 | pui8 = pui8DATA(data, pDescr->offset); |
| 1218 | |
| 1219 | while (existNextElement(vector, readIndex, Tag)) |
| 1220 | { /* tag control shows existence of next list elements */ |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1221 | LOGPC(DCSN1, LOGL_NOTICE, "%s = Exist | ", pDescr->sz); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1222 | bit_offset++; |
| 1223 | remaining_bits_len--; |
| 1224 | |
| 1225 | /* extract and store no_of_bits long element from bitstream */ |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1226 | *pui8 = bitvec_read_field(vector, readIndex, no_of_bits); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1227 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1228 | pui8++; |
| 1229 | remaining_bits_len -= no_of_bits; |
| 1230 | ElementCount++; |
| 1231 | |
| 1232 | if (remaining_bits_len < 0) |
| 1233 | { |
| 1234 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 1235 | } |
| 1236 | |
| 1237 | bit_offset += no_of_bits; |
| 1238 | } |
| 1239 | |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1240 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)bitvec_read_field(vector, readIndex, 1)); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1241 | /* existNextElement() returned FALSE, 1 bit consumed */ |
| 1242 | bit_offset++; |
| 1243 | |
| 1244 | /* Store the counted number of elements of the array */ |
| 1245 | *pui8DATA(data, (gint16)pDescr->descr.value) = ElementCount; |
| 1246 | |
| 1247 | pDescr++; |
| 1248 | break; |
| 1249 | } |
| 1250 | |
| 1251 | case CSN_RECURSIVE_TARRAY: |
| 1252 | { /* Recursive way to specify an array of type: <lists> ::= { 1 <type> } ** 0 ; |
| 1253 | * M_REC_TARRAY(_STRUCT, _MEMBER, _MEMBER_TYPE, _ElementCountField) |
| 1254 | * {t, offsetof(_STRUCT, _ElementCountField), (void*)CSNDESCR_##_MEMBER_TYPE, offsetof(_STRUCT, _MEMBER), #_MEMBER, (StreamSerializeFcn_t)sizeof(_MEMBER_TYPE)} |
| 1255 | */ |
| 1256 | gint16 nSizeElement = (gint16)(gint32)pDescr->serialize.value; |
| 1257 | guint8 ElementCount = 0; |
| 1258 | pui8 = pui8DATA(data, pDescr->offset); |
| 1259 | |
| 1260 | while (existNextElement(vector, readIndex, Tag)) |
| 1261 | { /* tag control shows existence of next list elements */ |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1262 | LOGPC(DCSN1, LOGL_NOTICE, "%s = Exist | ", pDescr->sz); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1263 | /* existNextElement() returned TRUE, 1 bit consumed */ |
| 1264 | bit_offset++; |
| 1265 | remaining_bits_len--; |
| 1266 | ElementCount++; |
| 1267 | |
| 1268 | { /* unpack the following data structure */ |
| 1269 | csnStream_t arT = *ar; |
| 1270 | gint16 Status; |
| 1271 | csnStreamInit(&arT, bit_offset, remaining_bits_len); |
Ivan Kluchnikov | 4440845 | 2013-03-01 02:46:10 +0400 | [diff] [blame] | 1272 | Status = csnStreamDecoder(&arT, (const CSN_DESCR*)pDescr->descr.ptr, vector, readIndex, pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1273 | |
| 1274 | if (Status >= 0) |
| 1275 | { /* successful completion */ |
| 1276 | pui8 += nSizeElement; /* -> to next data element */ |
| 1277 | remaining_bits_len = arT.remaining_bits_len; |
| 1278 | bit_offset = arT.bit_offset; |
| 1279 | } |
| 1280 | else |
| 1281 | { /* something went awry */ |
| 1282 | return Status; |
| 1283 | } |
| 1284 | } |
| 1285 | |
| 1286 | if (remaining_bits_len < 0) |
| 1287 | { |
| 1288 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 1289 | } |
| 1290 | } |
| 1291 | |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1292 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)bitvec_read_field(vector, readIndex, 1)); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1293 | |
| 1294 | /* existNextElement() returned FALSE, 1 bit consumed */ |
| 1295 | bit_offset++; |
| 1296 | |
| 1297 | /* Store the counted number of elements of the array */ |
| 1298 | *pui8DATA(data, (gint16)(gint32)pDescr->i) = ElementCount; |
| 1299 | |
| 1300 | pDescr++; |
| 1301 | break; |
| 1302 | } |
| 1303 | |
| 1304 | case CSN_RECURSIVE_TARRAY_2: |
| 1305 | { /* Recursive way to specify an array of type: <list> ::= <type> { 0 <type> } ** 1 ; */ |
| 1306 | |
| 1307 | Tag = REVERSED_TAG; |
| 1308 | |
| 1309 | /* NO break - |
| 1310 | * handling is exactly the same as for CSN_RECURSIVE_TARRAY_1 so we continue |
| 1311 | */ |
| 1312 | } |
| 1313 | |
| 1314 | case CSN_RECURSIVE_TARRAY_1: |
| 1315 | { /* Recursive way to specify an array of type: <lists> ::= <type> { 1 <type> } ** 0 ; |
| 1316 | * M_REC_TARRAY(_STRUCT, _MEMBER, _MEMBER_TYPE, _ElementCountField) |
| 1317 | * {t, offsetof(_STRUCT, _ElementCountField), (void*)CSNDESCR_##_MEMBER_TYPE, offsetof(_STRUCT, _MEMBER), #_MEMBER, (StreamSerializeFcn_t)sizeof(_MEMBER_TYPE)} |
| 1318 | */ |
| 1319 | gint16 nSizeElement = (gint16)(gint32)pDescr->serialize.value; |
| 1320 | guint8 ElementCount = 0; |
| 1321 | csnStream_t arT = *ar; |
| 1322 | gboolean EndOfList = FALSE; |
| 1323 | gint16 Status; |
| 1324 | pui8 = pui8DATA(data, pDescr->offset); |
| 1325 | |
| 1326 | do |
| 1327 | { /* get data element */ |
| 1328 | ElementCount++; |
| 1329 | |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1330 | LOGPC(DCSN1, LOGL_NOTICE, "%s { | ", pDescr->sz); |
| 1331 | |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1332 | csnStreamInit(&arT, bit_offset, remaining_bits_len); |
Ivan Kluchnikov | 4440845 | 2013-03-01 02:46:10 +0400 | [diff] [blame] | 1333 | Status = csnStreamDecoder(&arT, (const CSN_DESCR*)pDescr->descr.ptr, vector, readIndex, pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1334 | |
| 1335 | if (Status >= 0) |
| 1336 | { /* successful completion */ |
| 1337 | pui8 += nSizeElement; /* -> to next */ |
| 1338 | remaining_bits_len = arT.remaining_bits_len; |
| 1339 | bit_offset = arT.bit_offset; |
| 1340 | } |
| 1341 | else |
| 1342 | { /* something went awry */ |
| 1343 | return Status; |
| 1344 | } |
| 1345 | |
| 1346 | if (remaining_bits_len < 0) |
| 1347 | { |
| 1348 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 1349 | } |
| 1350 | |
| 1351 | /* control of next element's tag */ |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1352 | LOGPC(DCSN1, LOGL_NOTICE, "%s } | ", pDescr->sz); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1353 | EndOfList = !(existNextElement(vector, readIndex, Tag)); |
| 1354 | |
| 1355 | bit_offset++; |
| 1356 | remaining_bits_len--; /* 1 bit consumed (tag) */ |
| 1357 | } while (!EndOfList); |
| 1358 | |
| 1359 | |
| 1360 | /* Store the count of the array */ |
| 1361 | *pui8DATA(data, pDescr->i) = ElementCount; |
| 1362 | Tag = STANDARD_TAG; /* in case it was set to "reversed" */ |
| 1363 | pDescr++; |
| 1364 | break; |
| 1365 | } |
| 1366 | |
| 1367 | case CSN_FIXED: |
| 1368 | { /* Verify the fixed bits */ |
| 1369 | guint8 no_of_bits = (guint8) pDescr->i; |
| 1370 | guint32 ui32; |
| 1371 | |
| 1372 | if (no_of_bits <= 32) |
| 1373 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1374 | ui32 = bitvec_read_field(vector, readIndex, no_of_bits); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1375 | } |
| 1376 | else |
| 1377 | { |
| 1378 | return ProcessError(readIndex,"no_of_bits > 32", -1, pDescr); |
| 1379 | } |
| 1380 | if (ui32 != (unsigned)(gint32)pDescr->offset) |
| 1381 | { |
| 1382 | return ProcessError(readIndex,"csnStreamDecoder FIXED value does not match", -1, pDescr); |
| 1383 | } |
| 1384 | |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1385 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %d | ", pDescr->sz , (unsigned int)ui32); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1386 | remaining_bits_len -= no_of_bits; |
| 1387 | bit_offset += no_of_bits; |
| 1388 | pDescr++; |
| 1389 | break; |
| 1390 | } |
| 1391 | |
| 1392 | case CSN_CALLBACK: |
| 1393 | { |
| 1394 | return ProcessError(readIndex,"csnStreamDecoder Callback not implemented", -1, pDescr); |
| 1395 | break; |
| 1396 | } |
| 1397 | |
| 1398 | case CSN_TRAP_ERROR: |
| 1399 | { |
| 1400 | return ProcessError(readIndex,"csnStreamDecoder", pDescr->i, pDescr); |
| 1401 | } |
| 1402 | |
| 1403 | case CSN_END: |
| 1404 | { |
| 1405 | ar->remaining_bits_len = remaining_bits_len; |
| 1406 | ar->bit_offset = bit_offset; |
| 1407 | return remaining_bits_len; |
| 1408 | } |
| 1409 | |
| 1410 | default: |
| 1411 | { |
| 1412 | assert(0); |
| 1413 | } |
| 1414 | |
| 1415 | |
| 1416 | } |
| 1417 | |
| 1418 | } while (remaining_bits_len >= 0); |
| 1419 | |
| 1420 | return ProcessError(readIndex,"csnStreamDecoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 1421 | } |
| 1422 | |
| 1423 | |
| 1424 | |
| 1425 | |
Ivan Kluchnikov | 9b06ff0 | 2012-06-15 10:13:30 +0400 | [diff] [blame] | 1426 | gint16 csnStreamEncoder(csnStream_t* ar, const CSN_DESCR* pDescr, bitvec *vector, unsigned& writeIndex, void* data) |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1427 | { |
| 1428 | gint remaining_bits_len = ar->remaining_bits_len; |
| 1429 | gint bit_offset = ar->bit_offset; |
| 1430 | guint8* pui8; |
| 1431 | guint16* pui16; |
| 1432 | guint32* pui32; |
| 1433 | guint64* pui64; |
| 1434 | |
| 1435 | guint8 Tag = STANDARD_TAG; |
| 1436 | |
| 1437 | if (remaining_bits_len <= 0) |
| 1438 | { |
| 1439 | return 0; |
| 1440 | } |
| 1441 | |
| 1442 | do |
| 1443 | { |
| 1444 | switch (pDescr->type) |
| 1445 | { |
| 1446 | case CSN_BIT: |
| 1447 | { |
| 1448 | if (remaining_bits_len > 0) |
| 1449 | { |
| 1450 | pui8 = pui8DATA(data, pDescr->offset); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1451 | bitvec_write_field(vector, writeIndex, *pui8, 1); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1452 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1453 | /* end add the bit value to protocol tree */ |
| 1454 | } |
Ivan Kluchnikov | 701d9f8 | 2012-10-10 19:43:37 +0400 | [diff] [blame] | 1455 | else if(pDescr->may_be_null) |
| 1456 | { |
| 1457 | LOGPC(DCSN1, LOGL_NOTICE, "%s = NULL | ", pDescr->sz); |
| 1458 | } |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1459 | else |
| 1460 | { |
| 1461 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 1462 | } |
| 1463 | |
| 1464 | pDescr++; |
| 1465 | remaining_bits_len--; |
| 1466 | bit_offset++; |
| 1467 | break; |
| 1468 | } |
| 1469 | |
| 1470 | case CSN_NULL: |
| 1471 | { /* Empty member! */ |
| 1472 | pDescr++; |
| 1473 | break; |
| 1474 | } |
| 1475 | |
| 1476 | case CSN_UINT: |
| 1477 | { |
| 1478 | guint8 no_of_bits = (guint8) pDescr->i; |
| 1479 | |
| 1480 | if (remaining_bits_len >= no_of_bits) |
| 1481 | { |
| 1482 | if (no_of_bits <= 8) |
| 1483 | { |
| 1484 | pui8 = pui8DATA(data, pDescr->offset); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1485 | bitvec_write_field(vector, writeIndex, *pui8, no_of_bits); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1486 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1487 | } |
| 1488 | else if (no_of_bits <= 16) |
| 1489 | { |
| 1490 | pui16 = pui16DATA(data, pDescr->offset); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1491 | bitvec_write_field(vector, writeIndex, *pui16, no_of_bits); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1492 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %d | ", pDescr->sz , *pui16); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1493 | } |
| 1494 | else if (no_of_bits <= 32) |
| 1495 | { |
| 1496 | pui32 = pui32DATA(data, pDescr->offset); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1497 | bitvec_write_field(vector, writeIndex, *pui32, no_of_bits); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1498 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %d | ", pDescr->sz , *pui32); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1499 | } |
| 1500 | else |
| 1501 | { |
| 1502 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_GENERAL, pDescr); |
| 1503 | } |
Ivan Kluchnikov | 701d9f8 | 2012-10-10 19:43:37 +0400 | [diff] [blame] | 1504 | |
| 1505 | remaining_bits_len -= no_of_bits; |
| 1506 | bit_offset += no_of_bits; |
| 1507 | } |
| 1508 | else if(pDescr->may_be_null) |
| 1509 | { |
| 1510 | LOGPC(DCSN1, LOGL_NOTICE, "%s = NULL | ", pDescr->sz); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1511 | } |
| 1512 | else |
| 1513 | { |
| 1514 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 1515 | } |
| 1516 | |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1517 | pDescr++; |
| 1518 | break; |
| 1519 | } |
| 1520 | |
| 1521 | case CSN_UINT_OFFSET: |
| 1522 | { |
| 1523 | guint8 no_of_bits = (guint8) pDescr->i; |
| 1524 | |
| 1525 | if (remaining_bits_len >= no_of_bits) |
| 1526 | { |
| 1527 | if (no_of_bits <= 8) |
| 1528 | { |
| 1529 | pui8 = pui8DATA(data, pDescr->offset); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1530 | bitvec_write_field(vector, writeIndex, *pui8 - (guint8)pDescr->descr.value, no_of_bits); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1531 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)(*pui8 - (guint8)pDescr->descr.value)); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1532 | } |
| 1533 | else if (no_of_bits <= 16) |
| 1534 | { |
| 1535 | pui16 = pui16DATA(data, pDescr->offset); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1536 | bitvec_write_field(vector, writeIndex, *pui16 - (guint16)pDescr->descr.value, no_of_bits); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1537 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %d | ", pDescr->sz , (unsigned short)(*pui16 - (guint16)pDescr->descr.value)); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1538 | } |
| 1539 | else if (no_of_bits <= 32) |
| 1540 | { |
| 1541 | pui32 = pui32DATA(data, pDescr->offset); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1542 | bitvec_write_field(vector, writeIndex, *pui32 - (guint16)pDescr->descr.value, no_of_bits); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1543 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %d | ", pDescr->sz , (unsigned int)(*pui32 - (guint16)pDescr->descr.value)); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1544 | } |
| 1545 | else |
| 1546 | { |
| 1547 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_GENERAL, pDescr); |
| 1548 | } |
| 1549 | } |
| 1550 | else |
| 1551 | { |
| 1552 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 1553 | } |
| 1554 | |
| 1555 | remaining_bits_len -= no_of_bits; |
| 1556 | bit_offset += no_of_bits; |
| 1557 | pDescr++; |
| 1558 | break; |
| 1559 | } |
| 1560 | |
| 1561 | case CSN_UINT_LH: |
| 1562 | { |
| 1563 | guint8 no_of_bits = (guint8) pDescr->i; |
| 1564 | |
| 1565 | if (remaining_bits_len >= no_of_bits) |
| 1566 | { |
| 1567 | remaining_bits_len -= no_of_bits; |
| 1568 | if (no_of_bits <= 8) |
| 1569 | { |
| 1570 | pui8 = pui8DATA(data, pDescr->offset); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1571 | bitvec_write_field(vector, writeIndex, *pui8, no_of_bits); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1572 | // TODO : Change get_masked_bits8() |
| 1573 | writeIndex -= no_of_bits; |
| 1574 | guint8 ui8 = get_masked_bits8(vector, writeIndex, bit_offset, no_of_bits); |
| 1575 | writeIndex -= no_of_bits; |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1576 | bitvec_write_field(vector, writeIndex, ui8, no_of_bits); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1577 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1578 | |
| 1579 | } |
| 1580 | else |
| 1581 | {/* Maybe we should support more than 8 bits ? */ |
| 1582 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_GENERAL, pDescr); |
| 1583 | } |
| 1584 | } |
| 1585 | else |
| 1586 | { |
| 1587 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 1588 | } |
| 1589 | |
| 1590 | remaining_bits_len -= no_of_bits; |
| 1591 | bit_offset += no_of_bits; |
| 1592 | pDescr++; |
| 1593 | break; |
| 1594 | } |
| 1595 | |
| 1596 | case CSN_UINT_ARRAY: |
| 1597 | { |
| 1598 | guint8 no_of_bits = (guint8) pDescr->i; |
| 1599 | guint16 nCount = (guint16)pDescr->descr.value; /* nCount supplied by value i.e. M_UINT_ARRAY(...) */ |
| 1600 | |
| 1601 | if (pDescr->serialize.value != 0) |
| 1602 | { /* nCount specified by a reference to field holding value i.e. M_VAR_UINT_ARRAY(...) */ |
| 1603 | nCount = *pui16DATA(data, nCount); |
| 1604 | } |
| 1605 | |
| 1606 | if (remaining_bits_len >= no_of_bits) |
| 1607 | { |
| 1608 | remaining_bits_len -= (no_of_bits*nCount); |
| 1609 | if (no_of_bits <= 8) |
| 1610 | { |
| 1611 | pui8 = pui8DATA(data, pDescr->offset); |
| 1612 | do |
| 1613 | { |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1614 | bitvec_write_field(vector, writeIndex, *pui8, no_of_bits); |
| 1615 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1616 | pui8++; |
| 1617 | bit_offset += no_of_bits; |
| 1618 | } while (--nCount > 0); |
| 1619 | } |
| 1620 | else if (no_of_bits <= 16) |
| 1621 | { |
| 1622 | return ProcessError(writeIndex,"csnStreamEncoder NOTIMPLEMENTED", 999, pDescr); |
| 1623 | } |
| 1624 | else if (no_of_bits <= 32) |
| 1625 | { |
| 1626 | return ProcessError(writeIndex,"csnStreamEncoder NOTIMPLEMENTED", 999, pDescr); |
| 1627 | } |
| 1628 | else |
| 1629 | { |
| 1630 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_GENERAL, pDescr); |
| 1631 | } |
| 1632 | } |
| 1633 | else |
| 1634 | { |
| 1635 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 1636 | } |
| 1637 | pDescr++; |
| 1638 | break; |
| 1639 | } |
| 1640 | |
| 1641 | case CSN_VARIABLE_TARRAY_OFFSET: |
| 1642 | case CSN_VARIABLE_TARRAY: |
| 1643 | case CSN_TYPE_ARRAY: |
| 1644 | { |
| 1645 | gint16 Status; |
| 1646 | csnStream_t arT = *ar; |
| 1647 | gint16 nCount = pDescr->i; |
| 1648 | guint16 nSize = (guint16)(gint32)pDescr->serialize.value; |
| 1649 | |
| 1650 | pui8 = pui8DATA(data, pDescr->offset); |
| 1651 | if (pDescr->type == CSN_VARIABLE_TARRAY) |
| 1652 | { /* Count specified in field */ |
| 1653 | nCount = *pui8DATA(data, pDescr->i); |
| 1654 | } |
| 1655 | else if (pDescr->type == CSN_VARIABLE_TARRAY_OFFSET) |
| 1656 | { /* Count specified in field */ |
| 1657 | nCount = *pui8DATA(data, pDescr->i); |
| 1658 | /* nCount--; the 1 offset is already taken into account in CSN_UINT_OFFSET */ |
| 1659 | } |
| 1660 | |
| 1661 | while (nCount > 0) |
| 1662 | { /* resulting array of length 0 is possible |
| 1663 | * but no bits shall be read from bitstream |
| 1664 | */ |
| 1665 | |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1666 | LOGPC(DCSN1, LOGL_NOTICE, "%s : | ", pDescr->sz); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1667 | csnStreamInit(&arT, bit_offset, remaining_bits_len); |
| 1668 | Status = csnStreamEncoder(&arT, (const CSN_DESCR*)pDescr->descr.ptr, vector, writeIndex, pui8); |
| 1669 | if (Status >= 0) |
| 1670 | { |
| 1671 | pui8 += nSize; |
| 1672 | remaining_bits_len = arT.remaining_bits_len; |
| 1673 | bit_offset = arT.bit_offset; |
| 1674 | |
| 1675 | } |
| 1676 | else |
| 1677 | { |
| 1678 | return Status; |
| 1679 | } |
| 1680 | nCount--; |
| 1681 | } |
| 1682 | |
| 1683 | pDescr++; |
| 1684 | break; |
| 1685 | } |
| 1686 | |
| 1687 | case CSN_BITMAP: |
| 1688 | { /* bitmap with given length. The result is left aligned! */ |
| 1689 | guint8 no_of_bits = (guint8) pDescr->i; /* length of bitmap */ |
| 1690 | |
| 1691 | if (no_of_bits > 0) |
| 1692 | { |
| 1693 | |
| 1694 | if (no_of_bits <= 32) |
| 1695 | { |
Ivan Kluchnikov | 74b459f | 2012-04-11 22:02:15 +0400 | [diff] [blame] | 1696 | for(unsigned ib = 0; ib < 4; ib++) |
| 1697 | { |
| 1698 | pui8 = pui8DATA(data, pDescr->offset+ib); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1699 | bitvec_write_field(vector, writeIndex, *pui8, 8); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1700 | LOGPC(DCSN1, LOGL_NOTICE, "%s[%u] = %u | ", pDescr->sz , ib, (unsigned)*pui8); |
Ivan Kluchnikov | 74b459f | 2012-04-11 22:02:15 +0400 | [diff] [blame] | 1701 | } |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1702 | } |
| 1703 | else if (no_of_bits <= 64) |
| 1704 | { |
Ivan Kluchnikov | 74b459f | 2012-04-11 22:02:15 +0400 | [diff] [blame] | 1705 | for(unsigned ib = 0; ib < 8; ib++) |
| 1706 | { |
| 1707 | pui8 = pui8DATA(data, pDescr->offset+ib); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1708 | bitvec_write_field(vector, writeIndex, *pui8, 8); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1709 | LOGPC(DCSN1, LOGL_NOTICE, "%s[%u] = %u | ", pDescr->sz , ib, (unsigned)*pui8); |
Ivan Kluchnikov | 74b459f | 2012-04-11 22:02:15 +0400 | [diff] [blame] | 1710 | } |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1711 | } |
| 1712 | else |
| 1713 | { |
| 1714 | return ProcessError(writeIndex,"csnStreamEncoder NOT IMPLEMENTED", 999, pDescr); |
| 1715 | } |
| 1716 | |
| 1717 | remaining_bits_len -= no_of_bits; |
| 1718 | assert(remaining_bits_len >= 0); |
| 1719 | bit_offset += no_of_bits; |
| 1720 | } |
| 1721 | /* bitmap was successfully extracted or it was empty */ |
| 1722 | |
| 1723 | pDescr++; |
| 1724 | break; |
| 1725 | } |
| 1726 | |
| 1727 | case CSN_TYPE: |
| 1728 | { |
| 1729 | gint16 Status; |
| 1730 | csnStream_t arT = *ar; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1731 | LOGPC(DCSN1, LOGL_NOTICE, " : %s | ", pDescr->sz); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1732 | csnStreamInit(&arT, bit_offset, remaining_bits_len); |
| 1733 | Status = csnStreamEncoder(&arT, (const CSN_DESCR*)pDescr->descr.ptr, vector, writeIndex, pvDATA(data, pDescr->offset)); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1734 | LOGPC(DCSN1, LOGL_NOTICE, " : End %s | ", pDescr->sz); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1735 | if (Status >= 0) |
| 1736 | { |
| 1737 | |
| 1738 | remaining_bits_len = arT.remaining_bits_len; |
| 1739 | bit_offset = arT.bit_offset; |
| 1740 | pDescr++; |
| 1741 | } |
| 1742 | else |
| 1743 | { |
| 1744 | /* Has already been processed: ProcessError("csnStreamEncoder", Status, pDescr); */ |
| 1745 | return Status; |
| 1746 | } |
| 1747 | |
| 1748 | break; |
| 1749 | } |
| 1750 | |
| 1751 | case CSN_CHOICE: |
| 1752 | { |
| 1753 | //gint16 count = pDescr->i; |
| 1754 | guint8 i = 0; |
| 1755 | CSN_ChoiceElement_t* pChoice = (CSN_ChoiceElement_t*) pDescr->descr.ptr; |
| 1756 | |
| 1757 | pui8 = pui8DATA(data, pDescr->offset); |
| 1758 | i = *pui8; |
| 1759 | pChoice += i; |
| 1760 | guint8 no_of_bits = pChoice->bits; |
| 1761 | guint8 value = pChoice->value; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1762 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pChoice->descr.sz , (unsigned)value); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1763 | bitvec_write_field(vector, writeIndex, value, no_of_bits); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1764 | |
| 1765 | CSN_DESCR descr[2]; |
| 1766 | gint16 Status; |
| 1767 | csnStream_t arT = *ar; |
| 1768 | |
| 1769 | descr[0] = pChoice->descr; |
| 1770 | memset(&descr[1], 0x00, sizeof(CSN_DESCR)); |
| 1771 | descr[1].type = CSN_END; |
| 1772 | bit_offset += no_of_bits; |
| 1773 | remaining_bits_len -= no_of_bits; |
| 1774 | |
| 1775 | csnStreamInit(&arT, bit_offset, remaining_bits_len); |
| 1776 | Status = csnStreamEncoder(&arT, descr, vector, writeIndex, data); |
| 1777 | |
| 1778 | if (Status >= 0) |
| 1779 | { |
| 1780 | remaining_bits_len = arT.remaining_bits_len; |
| 1781 | bit_offset = arT.bit_offset; |
| 1782 | } |
| 1783 | else |
| 1784 | { |
| 1785 | return Status; |
| 1786 | } |
| 1787 | |
| 1788 | pDescr++; |
| 1789 | break; |
| 1790 | } |
| 1791 | |
| 1792 | case CSN_SERIALIZE: |
| 1793 | { |
| 1794 | StreamSerializeFcn_t serialize = pDescr->serialize.fcn; |
| 1795 | csnStream_t arT = *ar; |
Ivan Kluchnikov | 701d9f8 | 2012-10-10 19:43:37 +0400 | [diff] [blame] | 1796 | guint8 length_len = pDescr->i; |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1797 | gint16 Status = -1; |
Ivan Kluchnikov | 9b06ff0 | 2012-06-15 10:13:30 +0400 | [diff] [blame] | 1798 | unsigned lengthIndex; |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1799 | |
| 1800 | // store writeIndex for length value (7 bit) |
Ivan Kluchnikov | 701d9f8 | 2012-10-10 19:43:37 +0400 | [diff] [blame] | 1801 | lengthIndex = writeIndex; |
| 1802 | writeIndex += length_len; |
| 1803 | bit_offset += length_len; |
| 1804 | remaining_bits_len -= length_len; |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1805 | arT.direction = 0; |
| 1806 | csnStreamInit(&arT, bit_offset, remaining_bits_len); |
| 1807 | Status = serialize(&arT, vector, writeIndex, pvDATA(data, pDescr->offset)); |
Ivan Kluchnikov | 701d9f8 | 2012-10-10 19:43:37 +0400 | [diff] [blame] | 1808 | |
| 1809 | bitvec_write_field(vector, lengthIndex, writeIndex-lengthIndex-length_len, length_len); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1810 | LOGPC(DCSN1, LOGL_NOTICE, "%s length = %u | ", pDescr->sz , (unsigned)(writeIndex-lengthIndex)); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1811 | |
| 1812 | if (Status >= 0) |
| 1813 | { |
| 1814 | remaining_bits_len = arT.remaining_bits_len; |
| 1815 | bit_offset = arT.bit_offset; |
| 1816 | pDescr++; |
| 1817 | } |
| 1818 | else |
| 1819 | { |
| 1820 | // Has already been processed: |
| 1821 | return Status; |
| 1822 | } |
| 1823 | |
| 1824 | break; |
| 1825 | } |
| 1826 | |
| 1827 | case CSN_UNION_LH: |
| 1828 | case CSN_UNION: |
| 1829 | { |
| 1830 | gint16 Bits; |
| 1831 | guint8 index; |
| 1832 | gint16 count = pDescr->i; |
| 1833 | const CSN_DESCR* pDescrNext = pDescr; |
| 1834 | |
| 1835 | pDescrNext += count + 1; /* now this is next after the union */ |
| 1836 | if ((count <= 0) || (count > 16)) |
| 1837 | { |
| 1838 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_INVALID_UNION_INDEX, pDescr); |
| 1839 | } |
| 1840 | |
| 1841 | /* Now get the bits to extract the index */ |
| 1842 | Bits = ixBitsTab[count]; |
| 1843 | index = 0; |
| 1844 | |
| 1845 | /* Assign UnionType */ |
| 1846 | pui8 = pui8DATA(data, pDescr->offset); |
| 1847 | //read index from data and write to vector |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1848 | bitvec_write_field(vector, writeIndex, *pui8, Bits); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1849 | |
| 1850 | //decode index |
| 1851 | writeIndex -= Bits; |
| 1852 | |
| 1853 | while (Bits > 0) |
| 1854 | { |
| 1855 | index <<= 1; |
| 1856 | |
| 1857 | if (CSN_UNION_LH == pDescr->type) |
| 1858 | { |
| 1859 | index |= get_masked_bits8(vector,writeIndex, bit_offset, 1); |
| 1860 | } |
| 1861 | else |
| 1862 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1863 | index |= bitvec_read_field(vector, writeIndex, 1); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1864 | } |
| 1865 | |
| 1866 | remaining_bits_len--; |
| 1867 | bit_offset++; |
| 1868 | Bits--; |
| 1869 | } |
| 1870 | |
| 1871 | writeIndex -= Bits; |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1872 | bitvec_write_field(vector, writeIndex, index, Bits); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1873 | |
| 1874 | |
| 1875 | /* script index to continue on, limited in case we do not have a power of 2 */ |
| 1876 | pDescr += (MIN(index + 1, count)); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1877 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)index); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1878 | |
| 1879 | switch (pDescr->type) |
| 1880 | { /* get the right element of the union based on computed index */ |
| 1881 | |
| 1882 | case CSN_BIT: |
| 1883 | { |
| 1884 | pui8 = pui8DATA(data, pDescr->offset); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1885 | bitvec_write_field(vector, writeIndex, *pui8, 1); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1886 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1887 | remaining_bits_len -= 1; |
| 1888 | bit_offset++; |
| 1889 | pDescr++; |
| 1890 | break; |
| 1891 | } |
| 1892 | |
| 1893 | case CSN_NULL: |
| 1894 | { /* Empty member! */ |
| 1895 | pDescr++; |
| 1896 | break; |
| 1897 | } |
| 1898 | |
| 1899 | case CSN_UINT: |
| 1900 | { |
| 1901 | guint8 no_of_bits = (guint8) pDescr->i; |
| 1902 | if (remaining_bits_len >= no_of_bits) |
| 1903 | { |
| 1904 | remaining_bits_len -= no_of_bits; |
| 1905 | |
| 1906 | if (no_of_bits <= 8) |
| 1907 | { |
| 1908 | pui8 = pui8DATA(data, pDescr->offset); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1909 | bitvec_write_field(vector, writeIndex, *pui8, no_of_bits); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1910 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1911 | } |
| 1912 | else if (no_of_bits <= 16) |
| 1913 | { |
| 1914 | pui16 = pui16DATA(data, pDescr->offset); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1915 | bitvec_write_field(vector, writeIndex, *pui16, no_of_bits); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1916 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %d | ", pDescr->sz , *pui16); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1917 | } |
| 1918 | else if (no_of_bits <= 32) |
| 1919 | { |
| 1920 | pui32 = pui32DATA(data, pDescr->offset); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1921 | bitvec_write_field(vector, writeIndex, *pui32, no_of_bits); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1922 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %d | ", pDescr->sz , *pui32); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1923 | } |
| 1924 | else |
| 1925 | { |
| 1926 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_GENERAL, pDescr); |
| 1927 | } |
| 1928 | } |
| 1929 | else |
| 1930 | { |
| 1931 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_GENERAL, pDescr); |
| 1932 | } |
| 1933 | |
| 1934 | bit_offset += no_of_bits; |
| 1935 | pDescr++; |
| 1936 | break; |
| 1937 | } |
| 1938 | |
| 1939 | case CSN_UINT_OFFSET: |
| 1940 | { |
| 1941 | guint8 no_of_bits = (guint8) pDescr->i; |
| 1942 | |
| 1943 | if (remaining_bits_len >= no_of_bits) |
| 1944 | { |
| 1945 | if (no_of_bits <= 8) |
| 1946 | { |
| 1947 | pui8 = pui8DATA(data, pDescr->offset); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1948 | bitvec_write_field(vector, writeIndex, *pui8 - (guint8)pDescr->descr.value, no_of_bits); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1949 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)(*pui8 - (guint8)pDescr->descr.value)); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1950 | } |
| 1951 | else if (no_of_bits <= 16) |
| 1952 | { |
| 1953 | pui16 = pui16DATA(data, pDescr->offset); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1954 | bitvec_write_field(vector, writeIndex, *pui16 - (guint16)pDescr->descr.value, no_of_bits); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1955 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %d | ", pDescr->sz , (unsigned short)(*pui16 - (guint16)pDescr->descr.value)); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1956 | } |
| 1957 | else if (no_of_bits <= 32) |
| 1958 | { |
| 1959 | pui32 = pui32DATA(data, pDescr->offset); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1960 | bitvec_write_field(vector, writeIndex, *pui32 - (guint16)pDescr->descr.value, no_of_bits); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1961 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %d | ", pDescr->sz , (unsigned int)(*pui32 - (guint16)pDescr->descr.value)); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1962 | } |
| 1963 | else |
| 1964 | { |
| 1965 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_GENERAL, pDescr); |
| 1966 | } |
| 1967 | } |
| 1968 | else |
| 1969 | { |
| 1970 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 1971 | } |
| 1972 | |
| 1973 | remaining_bits_len -= no_of_bits; |
| 1974 | bit_offset += no_of_bits; |
| 1975 | pDescr++; |
| 1976 | break; |
| 1977 | } |
| 1978 | |
| 1979 | case CSN_UINT_LH: |
| 1980 | { |
| 1981 | guint8 no_of_bits = (guint8) pDescr->i; |
| 1982 | |
| 1983 | if (remaining_bits_len >= no_of_bits) |
| 1984 | { |
| 1985 | remaining_bits_len -= no_of_bits; |
| 1986 | if (no_of_bits <= 8) |
| 1987 | { |
| 1988 | pui8 = pui8DATA(data, pDescr->offset); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1989 | bitvec_write_field(vector, writeIndex, *pui8, no_of_bits); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1990 | // TODO : Change get_masked_bits8() |
| 1991 | writeIndex -= no_of_bits; |
| 1992 | guint8 ui8 = get_masked_bits8(vector, writeIndex, bit_offset, no_of_bits); |
| 1993 | writeIndex -= no_of_bits; |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 1994 | bitvec_write_field(vector, writeIndex, ui8, no_of_bits); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 1995 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 1996 | |
| 1997 | } |
| 1998 | else |
| 1999 | {/* Maybe we should support more than 8 bits ? */ |
| 2000 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_GENERAL, pDescr); |
| 2001 | } |
| 2002 | } |
| 2003 | else |
| 2004 | { |
| 2005 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 2006 | } |
| 2007 | |
| 2008 | remaining_bits_len -= no_of_bits; |
| 2009 | bit_offset += no_of_bits; |
| 2010 | pDescr++; |
| 2011 | break; |
| 2012 | } |
| 2013 | |
| 2014 | case CSN_UINT_ARRAY: |
| 2015 | { |
| 2016 | guint8 no_of_bits = (guint8) pDescr->i; |
| 2017 | guint16 nCount = (guint16)pDescr->descr.value; /* nCount supplied by value i.e. M_UINT_ARRAY(...) */ |
| 2018 | |
| 2019 | if (pDescr->serialize.value != 0) |
| 2020 | { /* nCount specified by a reference to field holding value i.e. M_VAR_UINT_ARRAY(...) */ |
| 2021 | nCount = *pui16DATA(data, nCount); |
| 2022 | } |
| 2023 | |
| 2024 | if (remaining_bits_len >= no_of_bits) |
| 2025 | { |
| 2026 | remaining_bits_len -= (no_of_bits*nCount); |
| 2027 | if (no_of_bits <= 8) |
| 2028 | { |
| 2029 | pui8 = pui8DATA(data, pDescr->offset); |
| 2030 | do |
| 2031 | { |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 2032 | bitvec_write_field(vector, writeIndex, *pui8, no_of_bits); |
| 2033 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2034 | pui8++; |
| 2035 | bit_offset += no_of_bits; |
| 2036 | } while (--nCount > 0); |
| 2037 | } |
| 2038 | else if (no_of_bits <= 16) |
| 2039 | { |
| 2040 | return ProcessError(writeIndex,"csnStreamEncoder NOTIMPLEMENTED", 999, pDescr); |
| 2041 | } |
| 2042 | else if (no_of_bits <= 32) |
| 2043 | { |
| 2044 | return ProcessError(writeIndex,"csnStreamEncoder NOTIMPLEMENTED", 999, pDescr); |
| 2045 | } |
| 2046 | else |
| 2047 | { |
| 2048 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_GENERAL, pDescr); |
| 2049 | } |
| 2050 | } |
| 2051 | else |
| 2052 | { |
| 2053 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 2054 | } |
| 2055 | pDescr++; |
| 2056 | break; |
| 2057 | } |
| 2058 | |
| 2059 | case CSN_VARIABLE_TARRAY_OFFSET: |
| 2060 | case CSN_VARIABLE_TARRAY: |
| 2061 | case CSN_TYPE_ARRAY: |
| 2062 | { |
| 2063 | gint16 Status; |
| 2064 | csnStream_t arT = *ar; |
| 2065 | gint16 nCount = pDescr->i; |
| 2066 | guint16 nSize = (guint16)(gint32)pDescr->serialize.value; |
| 2067 | |
| 2068 | pui8 = pui8DATA(data, pDescr->offset); |
| 2069 | if (pDescr->type == CSN_VARIABLE_TARRAY) |
| 2070 | { /* Count specified in field */ |
| 2071 | nCount = *pui8DATA(data, pDescr->i); |
| 2072 | } |
| 2073 | else if (pDescr->type == CSN_VARIABLE_TARRAY_OFFSET) |
| 2074 | { /* Count specified in field */ |
| 2075 | nCount = *pui8DATA(data, pDescr->i); |
| 2076 | /* nCount--; the 1 offset is already taken into account in CSN_UINT_OFFSET */ |
| 2077 | } |
| 2078 | |
| 2079 | while (nCount > 0) |
| 2080 | { /* resulting array of length 0 is possible |
| 2081 | * but no bits shall be read from bitstream |
| 2082 | */ |
| 2083 | |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 2084 | LOGPC(DCSN1, LOGL_NOTICE, "%s : | ", pDescr->sz); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2085 | csnStreamInit(&arT, bit_offset, remaining_bits_len); |
| 2086 | Status = csnStreamEncoder(&arT, (const CSN_DESCR*)pDescr->descr.ptr, vector, writeIndex, pui8); |
| 2087 | if (Status >= 0) |
| 2088 | { |
| 2089 | pui8 += nSize; |
| 2090 | remaining_bits_len = arT.remaining_bits_len; |
| 2091 | bit_offset = arT.bit_offset; |
| 2092 | } |
| 2093 | else |
| 2094 | { |
| 2095 | return Status; |
| 2096 | } |
| 2097 | nCount--; |
| 2098 | } |
| 2099 | |
| 2100 | pDescr++; |
| 2101 | break; |
| 2102 | } |
| 2103 | |
| 2104 | case CSN_BITMAP: |
| 2105 | { /* bitmap with given length. The result is left aligned! */ |
| 2106 | guint8 no_of_bits = (guint8) pDescr->i; /* length of bitmap */ |
| 2107 | |
| 2108 | if (no_of_bits > 0) |
| 2109 | { |
| 2110 | |
| 2111 | if (no_of_bits <= 32) |
| 2112 | { |
| 2113 | pui32 = pui32DATA(data, pDescr->offset); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 2114 | bitvec_write_field(vector, writeIndex, *pui32, no_of_bits); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 2115 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %d | ", pDescr->sz , *pui32); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2116 | } |
| 2117 | else if (no_of_bits <= 64) |
| 2118 | { |
| 2119 | pui64 = pui64DATA(data, pDescr->offset); |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 2120 | bitvec_write_field(vector, writeIndex, *pui64, no_of_bits); |
Holger Hans Peter Freyther | cf0265a | 2013-07-28 15:57:20 +0200 | [diff] [blame] | 2121 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %lu | ", pDescr->sz , *pui64); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2122 | } |
| 2123 | else |
| 2124 | { |
| 2125 | return ProcessError(writeIndex,"csnStreamEncoder NOT IMPLEMENTED", 999, pDescr); |
| 2126 | } |
| 2127 | |
| 2128 | remaining_bits_len -= no_of_bits; |
| 2129 | assert(remaining_bits_len >= 0); |
| 2130 | bit_offset += no_of_bits; |
| 2131 | } |
| 2132 | /* bitmap was successfully extracted or it was empty */ |
| 2133 | |
| 2134 | pDescr++; |
| 2135 | break; |
| 2136 | } |
| 2137 | |
| 2138 | case CSN_TYPE: |
| 2139 | { |
| 2140 | gint16 Status; |
| 2141 | csnStream_t arT = *ar; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 2142 | LOGPC(DCSN1, LOGL_NOTICE, " : %s | ", pDescr->sz); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2143 | csnStreamInit(&arT, bit_offset, remaining_bits_len); |
| 2144 | Status = csnStreamEncoder(&arT, (const CSN_DESCR*)pDescr->descr.ptr, vector, writeIndex, pvDATA(data, pDescr->offset)); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 2145 | LOGPC(DCSN1, LOGL_NOTICE, " : End %s | ", pDescr->sz); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2146 | if (Status >= 0) |
| 2147 | { |
| 2148 | remaining_bits_len = arT.remaining_bits_len; |
| 2149 | bit_offset = arT.bit_offset; |
| 2150 | pDescr++; |
| 2151 | } |
| 2152 | else |
| 2153 | { |
| 2154 | /* Has already been processed: ProcessError("csnStreamEncoder", Status, pDescr); */ |
| 2155 | return Status; |
| 2156 | } |
| 2157 | |
| 2158 | break; |
| 2159 | } |
| 2160 | |
| 2161 | default: |
| 2162 | { /* descriptions of union elements other than above are illegal */ |
| 2163 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_IN_SCRIPT, pDescr); |
| 2164 | } |
| 2165 | } |
| 2166 | |
| 2167 | pDescr = pDescrNext; |
| 2168 | break; |
| 2169 | } |
| 2170 | |
| 2171 | case CSN_EXIST: |
| 2172 | case CSN_EXIST_LH: |
| 2173 | { |
| 2174 | guint8 fExist; |
| 2175 | unsigned exist = 0; |
| 2176 | pui8 = pui8DATA(data, pDescr->offset); |
| 2177 | exist = *pui8; |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 2178 | bitvec_write_field(vector, writeIndex, *pui8, 1); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2179 | writeIndex--; |
| 2180 | if (CSN_EXIST_LH == pDescr->type) |
| 2181 | { |
| 2182 | fExist = get_masked_bits8(vector, writeIndex, bit_offset, 1); |
| 2183 | } |
| 2184 | else |
| 2185 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 2186 | fExist = bitvec_read_field(vector, writeIndex, 1); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2187 | } |
| 2188 | writeIndex--; |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 2189 | bitvec_write_field(vector, writeIndex, fExist, 1); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 2190 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz, (unsigned)fExist); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2191 | pDescr++; |
| 2192 | remaining_bits_len -= 1; |
| 2193 | |
| 2194 | if (!exist) |
| 2195 | { |
| 2196 | ar->remaining_bits_len = remaining_bits_len; |
| 2197 | ar->bit_offset = bit_offset; |
| 2198 | return remaining_bits_len; |
| 2199 | } |
| 2200 | break; |
| 2201 | } |
| 2202 | |
| 2203 | case CSN_NEXT_EXIST: |
| 2204 | { |
| 2205 | guint8 fExist; |
| 2206 | |
| 2207 | pui8 = pui8DATA(data, pDescr->offset); |
| 2208 | |
| 2209 | /* this if-statement represents the M_NEXT_EXIST_OR_NULL description element */ |
Ivan Kluchnikov | 701d9f8 | 2012-10-10 19:43:37 +0400 | [diff] [blame] | 2210 | if ((pDescr->may_be_null) && (remaining_bits_len == 0)) |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2211 | { /* no more bits to decode is fine here - end of message detected and allowed */ |
| 2212 | |
| 2213 | /* Skip i entries + this entry */ |
| 2214 | pDescr += pDescr->i + 1; |
| 2215 | |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2216 | break; |
| 2217 | } |
| 2218 | |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 2219 | bitvec_write_field(vector, writeIndex, *pui8, 1); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2220 | fExist = *pui8; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 2221 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2222 | remaining_bits_len -= 1; |
| 2223 | |
| 2224 | ++bit_offset; |
| 2225 | |
| 2226 | if (fExist == 0) |
| 2227 | { /* Skip 'i' entries */ |
| 2228 | pDescr += pDescr->i; |
| 2229 | } |
| 2230 | |
| 2231 | pDescr++; |
| 2232 | break; |
| 2233 | } |
| 2234 | |
| 2235 | case CSN_NEXT_EXIST_LH: |
| 2236 | { |
| 2237 | guint8 fExist; |
| 2238 | pui8 = pui8DATA(data, pDescr->offset); |
| 2239 | |
| 2240 | /* this if-statement represents the M_NEXT_EXIST_OR_NULL_LH description element */ |
| 2241 | if ((pDescr->descr.ptr != NULL) && (remaining_bits_len == 0)) |
| 2242 | { /* no more bits to decode is fine here - end of message detected and allowed */ |
| 2243 | |
| 2244 | /* skip 'i' entries + this entry */ |
| 2245 | pDescr += pDescr->i + 1; |
| 2246 | |
| 2247 | /* pDescr now must be pointing to a CSN_END entry, if not this is an error */ |
| 2248 | if ( pDescr->type != CSN_END ) |
| 2249 | { /* substract one more bit from remaining_bits_len to make the "not enough bits" error to be triggered */ |
| 2250 | remaining_bits_len--; |
| 2251 | } |
| 2252 | |
| 2253 | /* set the data member to "not exist" */ |
| 2254 | //*pui8 = 0; |
| 2255 | break; |
| 2256 | } |
| 2257 | |
| 2258 | /* the "regular" M_NEXT_EXIST_LH description element */ |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 2259 | bitvec_write_field(vector, writeIndex, *pui8, 1); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2260 | writeIndex--; |
| 2261 | fExist = get_masked_bits8(vector,writeIndex, bit_offset, 1); |
| 2262 | writeIndex--; |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 2263 | bitvec_write_field(vector, writeIndex, fExist, 1); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2264 | pui8++; |
| 2265 | remaining_bits_len -= 1; |
| 2266 | |
| 2267 | bit_offset++; |
| 2268 | |
| 2269 | if (fExist == 0) |
| 2270 | { /* Skip 'i' entries */ |
| 2271 | pDescr += pDescr->i; |
| 2272 | } |
| 2273 | pDescr++; |
| 2274 | |
| 2275 | break; |
| 2276 | } |
| 2277 | |
| 2278 | case CSN_VARIABLE_BITMAP_1: |
| 2279 | { /* Bitmap from here and to the end of message */ |
| 2280 | |
| 2281 | //*pui8DATA(data, (gint16)pDescr->descr.value) = (guint8) remaining_bits_len; /* length of bitmap == remaining bits */ |
| 2282 | |
| 2283 | /*no break - |
| 2284 | * with a length set we have a regular variable length bitmap so we continue */ |
| 2285 | } |
| 2286 | |
| 2287 | case CSN_VARIABLE_BITMAP: |
| 2288 | { /* {CSN_VARIABLE_BITMAP, 0, offsetof(_STRUCT, _ElementCountField), offsetof(_STRUCT, _MEMBER), #_MEMBER} |
| 2289 | * <N: bit (5)> <bitmap: bit(N + offset)> |
| 2290 | * Bit array with length (in bits) specified in parameter (pDescr->descr) |
| 2291 | * The result is right aligned! |
| 2292 | */ |
| 2293 | gint16 no_of_bits = *pui8DATA(data, (gint16)pDescr->descr.value); |
| 2294 | |
| 2295 | no_of_bits += pDescr->i; /* adjusted by offset */ |
| 2296 | |
| 2297 | if (no_of_bits > 0) |
| 2298 | { |
| 2299 | remaining_bits_len -= no_of_bits; |
| 2300 | |
| 2301 | if (remaining_bits_len < 0) |
| 2302 | { |
| 2303 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 2304 | } |
| 2305 | |
| 2306 | { /* extract bits */ |
| 2307 | guint8* pui8 = pui8DATA(data, pDescr->offset); |
| 2308 | gint16 nB1 = no_of_bits & 0x07;/* no_of_bits Mod 8 */ |
| 2309 | |
| 2310 | if (nB1 > 0) |
| 2311 | { /* take care of the first byte - it will be right aligned */ |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 2312 | bitvec_write_field(vector, writeIndex, *pui8, nB1); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 2313 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2314 | pui8++; |
| 2315 | no_of_bits -= nB1; |
| 2316 | bit_offset += nB1; /* (nB1 is no_of_bits Mod 8) */ |
| 2317 | } |
| 2318 | |
| 2319 | /* remaining no_of_bits is a multiple of 8 or 0 */ |
| 2320 | while (no_of_bits > 0) |
| 2321 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 2322 | bitvec_write_field(vector, writeIndex, *pui8, 8); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 2323 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2324 | pui8++; |
| 2325 | no_of_bits -= 8; |
| 2326 | } |
| 2327 | } |
| 2328 | } |
| 2329 | pDescr++; |
| 2330 | break; |
| 2331 | } |
| 2332 | |
| 2333 | case CSN_LEFT_ALIGNED_VAR_BMP_1: |
| 2334 | { /* Bitmap from here and to the end of message */ |
| 2335 | |
| 2336 | //*pui8DATA(data, (gint16)pDescr->descr.value) = (guint8) remaining_bits_len; /* length of bitmap == remaining bits */ |
| 2337 | |
| 2338 | /* no break - |
| 2339 | * with a length set we have a regular left aligned variable length bitmap so we continue |
| 2340 | */ |
| 2341 | } |
| 2342 | |
| 2343 | case CSN_LEFT_ALIGNED_VAR_BMP: |
| 2344 | { /* {CSN_LEFT_ALIGNED_VAR_BMP, _OFFSET, (void*)offsetof(_STRUCT, _ElementCountField), offsetof(_STRUCT, _MEMBER), #_MEMBER} |
| 2345 | * <N: bit (5)> <bitmap: bit(N + offset)> |
| 2346 | * bit array with length (in bits) specified in parameter (pDescr->descr) |
| 2347 | */ |
| 2348 | |
| 2349 | gint16 no_of_bits = *pui8DATA(data, (gint16)pDescr->descr.value);/* Size of bitmap */ |
| 2350 | |
| 2351 | no_of_bits += pDescr->i;/* size adjusted by offset */ |
| 2352 | |
| 2353 | if (no_of_bits > 0) |
| 2354 | { |
| 2355 | remaining_bits_len -= no_of_bits; |
| 2356 | |
| 2357 | if (remaining_bits_len < 0) |
| 2358 | { |
| 2359 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 2360 | } |
| 2361 | |
| 2362 | { /* extract bits */ |
| 2363 | guint8* pui8 = pui8DATA(data, pDescr->offset); |
| 2364 | gint16 nB1 = no_of_bits & 0x07;/* no_of_bits Mod 8 */ |
| 2365 | |
| 2366 | while (no_of_bits > 0) |
| 2367 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 2368 | bitvec_write_field(vector, writeIndex, *pui8, 8); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 2369 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2370 | pui8++; |
| 2371 | no_of_bits -= 8; |
| 2372 | } |
| 2373 | if (nB1 > 0) |
| 2374 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 2375 | bitvec_write_field(vector, writeIndex, *pui8, nB1); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 2376 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2377 | pui8++; |
| 2378 | no_of_bits -= nB1; |
| 2379 | bit_offset += nB1; /* (nB1 is no_of_bits Mod 8) */ |
| 2380 | } |
| 2381 | } |
| 2382 | |
| 2383 | } |
| 2384 | |
| 2385 | /* bitmap was successfully extracted or it was empty */ |
| 2386 | pDescr++; |
| 2387 | break; |
| 2388 | } |
| 2389 | |
Ivan Kluchnikov | 701d9f8 | 2012-10-10 19:43:37 +0400 | [diff] [blame] | 2390 | case CSN_PADDING_BITS: |
| 2391 | { /* Padding from here and to the end of message */ |
| 2392 | LOGPC(DCSN1, LOGL_NOTICE, "%s = ", pDescr->sz); |
| 2393 | guint8 filler = 0x2b; |
| 2394 | if (remaining_bits_len > 0) |
| 2395 | { |
| 2396 | while (remaining_bits_len > 0) |
| 2397 | { |
| 2398 | guint8 bits_to_handle = remaining_bits_len%8; |
| 2399 | if (bits_to_handle > 0) |
| 2400 | { |
| 2401 | guint8 fl = filler&(0xff>>(8-bits_to_handle)); |
| 2402 | bitvec_write_field(vector, writeIndex, fl, bits_to_handle); |
| 2403 | LOGPC(DCSN1, LOGL_NOTICE, "%u|", fl); |
| 2404 | remaining_bits_len -= bits_to_handle; |
| 2405 | bit_offset += bits_to_handle; |
| 2406 | } |
| 2407 | else if (bits_to_handle == 0) |
| 2408 | { |
| 2409 | bitvec_write_field(vector, writeIndex, filler, 8); |
| 2410 | LOGPC(DCSN1, LOGL_NOTICE, "%u|", filler); |
| 2411 | remaining_bits_len -= 8; |
| 2412 | bit_offset += 8; |
| 2413 | } |
| 2414 | } |
| 2415 | } |
| 2416 | if (remaining_bits_len < 0) |
| 2417 | { |
| 2418 | return ProcessError(writeIndex,"csnStreamDissector", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 2419 | } |
| 2420 | |
| 2421 | /* Padding was successfully extracted or it was empty */ |
| 2422 | pDescr++; |
| 2423 | break; |
| 2424 | } |
| 2425 | |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2426 | case CSN_VARIABLE_ARRAY: |
| 2427 | { /* {int type; int i; void* descr; int offset; const char* sz; } CSN_DESCR; |
| 2428 | * {CSN_VARIABLE_ARRAY, _OFFSET, (void*)offsetof(_STRUCT, _ElementCountField), offsetof(_STRUCT, _MEMBER), #_MEMBER} |
| 2429 | * Array with length specified in parameter: |
| 2430 | * <count: bit (x)> |
| 2431 | * <list: octet(count + offset)> |
| 2432 | */ |
| 2433 | gint16 count = *pui8DATA(data, (gint16)pDescr->descr.value); |
| 2434 | |
| 2435 | count += pDescr->i; /* Adjusted by offset */ |
| 2436 | |
| 2437 | if (count > 0) |
| 2438 | { |
| 2439 | remaining_bits_len -= count * 8; |
| 2440 | |
| 2441 | if (remaining_bits_len < 0) |
| 2442 | { |
| 2443 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 2444 | } |
| 2445 | |
| 2446 | pui8 = pui8DATA(data, pDescr->offset); |
| 2447 | |
| 2448 | while (count > 0) |
| 2449 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 2450 | bitvec_write_field(vector, writeIndex, *pui8, 8); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 2451 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2452 | pui8++; |
| 2453 | bit_offset += 8; |
| 2454 | count--; |
| 2455 | } |
| 2456 | } |
| 2457 | |
| 2458 | pDescr++; |
| 2459 | break; |
| 2460 | } |
| 2461 | |
| 2462 | case CSN_RECURSIVE_ARRAY: |
| 2463 | { /* Recursive way to specify an array: <list> ::= {1 <number: bit (4)> <list> | 0} |
| 2464 | * or more generally: <list> ::= { <tag> <element> <list> | <EndTag> } |
| 2465 | * where <element> ::= bit(value) |
| 2466 | * <tag> ::= 0 | 1 |
| 2467 | * <EndTag> ::= reversed tag i.e. tag == 1 -> EndTag == 0 and vice versa |
| 2468 | * {CSN_RECURSIVE_ARRAY, _BITS, (void*)offsetof(_STRUCT, _ElementCountField), offsetof(_STRUCT, _MEMBER), #_MEMBER} |
| 2469 | * REMARK: recursive way to specify an array but an iterative implementation! |
| 2470 | */ |
| 2471 | gint16 no_of_bits = pDescr->i; |
| 2472 | guint8 ElementCount = 0; |
| 2473 | pui8 = pui8DATA(data, pDescr->offset); |
| 2474 | ElementCount = *pui8DATA(data, (gint16)pDescr->descr.value); |
| 2475 | while (ElementCount > 0) |
| 2476 | { /* tag control shows existence of next list elements */ |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 2477 | bitvec_write_field(vector, writeIndex, Tag, 1); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 2478 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)Tag); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2479 | bit_offset++; |
| 2480 | remaining_bits_len--; |
| 2481 | |
| 2482 | /* extract and store no_of_bits long element from bitstream */ |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 2483 | bitvec_write_field(vector, writeIndex, *pui8, no_of_bits); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 2484 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)*pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2485 | pui8++; |
| 2486 | remaining_bits_len -= no_of_bits; |
| 2487 | ElementCount--; |
| 2488 | |
| 2489 | if (remaining_bits_len < 0) |
| 2490 | { |
| 2491 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 2492 | } |
| 2493 | |
| 2494 | bit_offset += no_of_bits; |
| 2495 | } |
| 2496 | |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 2497 | bitvec_write_field(vector, writeIndex, !Tag, 1); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 2498 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)(!Tag)); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2499 | bit_offset++; |
| 2500 | |
| 2501 | pDescr++; |
| 2502 | break; |
| 2503 | } |
| 2504 | |
| 2505 | case CSN_RECURSIVE_TARRAY: |
| 2506 | { /* Recursive way to specify an array of type: <lists> ::= { 1 <type> } ** 0 ; |
| 2507 | * M_REC_TARRAY(_STRUCT, _MEMBER, _MEMBER_TYPE, _ElementCountField) |
| 2508 | * {t, offsetof(_STRUCT, _ElementCountField), (void*)CSNDESCR_##_MEMBER_TYPE, offsetof(_STRUCT, _MEMBER), #_MEMBER, (StreamSerializeFcn_t)sizeof(_MEMBER_TYPE)} |
| 2509 | */ |
| 2510 | gint16 nSizeElement = (gint16)(gint32)pDescr->serialize.value; |
| 2511 | guint8 ElementCount = 0; |
| 2512 | pui8 = pui8DATA(data, pDescr->offset); |
| 2513 | /* Store the counted number of elements of the array */ |
| 2514 | ElementCount = *pui8DATA(data, (gint16)(gint32)pDescr->i); |
| 2515 | |
| 2516 | while (ElementCount > 0) |
| 2517 | { /* tag control shows existence of next list elements */ |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 2518 | bitvec_write_field(vector, writeIndex, Tag, 1); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 2519 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)Tag); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2520 | bit_offset++; |
| 2521 | |
| 2522 | remaining_bits_len--; |
| 2523 | ElementCount--; |
| 2524 | |
| 2525 | { /* unpack the following data structure */ |
| 2526 | csnStream_t arT = *ar; |
| 2527 | gint16 Status; |
| 2528 | csnStreamInit(&arT, bit_offset, remaining_bits_len); |
Ivan Kluchnikov | 4440845 | 2013-03-01 02:46:10 +0400 | [diff] [blame] | 2529 | Status = csnStreamEncoder(&arT, (const CSN_DESCR*)pDescr->descr.ptr, vector, writeIndex, pui8); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2530 | |
| 2531 | if (Status >= 0) |
| 2532 | { /* successful completion */ |
| 2533 | pui8 += nSizeElement; /* -> to next data element */ |
| 2534 | remaining_bits_len = arT.remaining_bits_len; |
| 2535 | bit_offset = arT.bit_offset; |
| 2536 | } |
| 2537 | else |
| 2538 | { /* something went awry */ |
| 2539 | return Status; |
| 2540 | } |
| 2541 | } |
| 2542 | |
| 2543 | if (remaining_bits_len < 0) |
| 2544 | { |
| 2545 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 2546 | } |
| 2547 | } |
| 2548 | |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 2549 | bitvec_write_field(vector, writeIndex, !Tag, 1); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 2550 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)(!Tag)); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2551 | bit_offset++; |
| 2552 | |
| 2553 | pDescr++; |
| 2554 | break; |
| 2555 | } |
| 2556 | |
| 2557 | case CSN_RECURSIVE_TARRAY_2: |
| 2558 | { /* Recursive way to specify an array of type: <list> ::= <type> { 0 <type> } ** 1 ; */ |
| 2559 | |
| 2560 | Tag = REVERSED_TAG; |
| 2561 | |
| 2562 | /* NO break - |
| 2563 | * handling is exactly the same as for CSN_RECURSIVE_TARRAY_1 so we continue |
| 2564 | */ |
| 2565 | } |
| 2566 | |
| 2567 | case CSN_RECURSIVE_TARRAY_1: |
| 2568 | { /* Recursive way to specify an array of type: <lists> ::= <type> { 1 <type> } ** 0 ; |
| 2569 | * M_REC_TARRAY(_STRUCT, _MEMBER, _MEMBER_TYPE, _ElementCountField) |
| 2570 | * {t, offsetof(_STRUCT, _ElementCountField), (void*)CSNDESCR_##_MEMBER_TYPE, offsetof(_STRUCT, _MEMBER), #_MEMBER, (StreamSerializeFcn_t)sizeof(_MEMBER_TYPE)} |
| 2571 | */ |
| 2572 | gint16 nSizeElement = (gint16)(gint32)pDescr->serialize.value; |
| 2573 | guint8 ElementCount = 0; |
| 2574 | guint8 ElementNum = 0; |
| 2575 | csnStream_t arT = *ar; |
| 2576 | gint16 Status; |
| 2577 | |
| 2578 | pui8 = pui8DATA(data, pDescr->offset); |
| 2579 | /* Store the count of the array */ |
| 2580 | ElementCount = *pui8DATA(data, pDescr->i); |
| 2581 | ElementNum = ElementCount; |
| 2582 | |
| 2583 | while (ElementCount > 0) |
| 2584 | { /* get data element */ |
| 2585 | if (ElementCount != ElementNum) |
| 2586 | { |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 2587 | bitvec_write_field(vector, writeIndex, Tag, 1); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 2588 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)Tag); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2589 | bit_offset++; |
| 2590 | remaining_bits_len--; |
| 2591 | } |
| 2592 | ElementCount--; |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 2593 | LOGPC(DCSN1, LOGL_NOTICE, "%s { | ", pDescr->sz); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2594 | csnStreamInit(&arT, bit_offset, remaining_bits_len); |
Ivan Kluchnikov | 4440845 | 2013-03-01 02:46:10 +0400 | [diff] [blame] | 2595 | Status = csnStreamEncoder(&arT, (const CSN_DESCR*)pDescr->descr.ptr, vector, writeIndex, pui8); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 2596 | LOGPC(DCSN1, LOGL_NOTICE, "%s } | ", pDescr->sz); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2597 | if (Status >= 0) |
| 2598 | { /* successful completion */ |
| 2599 | pui8 += nSizeElement; /* -> to next */ |
| 2600 | remaining_bits_len = arT.remaining_bits_len; |
| 2601 | bit_offset = arT.bit_offset; |
| 2602 | } |
| 2603 | else |
| 2604 | { /* something went awry */ |
| 2605 | return Status; |
| 2606 | } |
| 2607 | |
| 2608 | if (remaining_bits_len < 0) |
| 2609 | { |
| 2610 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 2611 | } |
| 2612 | |
| 2613 | } |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 2614 | bitvec_write_field(vector, writeIndex, !Tag, 1); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2615 | bit_offset++; |
Ivan Kluchnikov | 701d9f8 | 2012-10-10 19:43:37 +0400 | [diff] [blame] | 2616 | remaining_bits_len--; |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2617 | Tag = STANDARD_TAG; /* in case it was set to "reversed" */ |
| 2618 | pDescr++; |
| 2619 | break; |
| 2620 | } |
| 2621 | |
| 2622 | case CSN_FIXED: |
| 2623 | { /* Verify the fixed bits */ |
| 2624 | guint8 no_of_bits = (guint8) pDescr->i; |
Ivan Kluchnikov | 835f91e | 2012-04-30 18:00:36 +0400 | [diff] [blame] | 2625 | bitvec_write_field(vector, writeIndex, pDescr->offset, no_of_bits); |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 2626 | LOGPC(DCSN1, LOGL_NOTICE, "%s = %u | ", pDescr->sz , (unsigned)pDescr->offset); |
Ivan Kluchnikov | 487a141 | 2011-12-21 13:17:53 +0300 | [diff] [blame] | 2627 | remaining_bits_len -= no_of_bits; |
| 2628 | bit_offset += no_of_bits; |
| 2629 | pDescr++; |
| 2630 | break; |
| 2631 | } |
| 2632 | |
| 2633 | case CSN_CALLBACK: |
| 2634 | { |
| 2635 | return ProcessError(writeIndex,"csnStreamEncoder Callback not implemented", -1, pDescr); |
| 2636 | break; |
| 2637 | } |
| 2638 | |
| 2639 | case CSN_TRAP_ERROR: |
| 2640 | { |
| 2641 | return ProcessError(writeIndex,"csnStreamEncoder", pDescr->i, pDescr); |
| 2642 | } |
| 2643 | |
| 2644 | case CSN_END: |
| 2645 | { |
| 2646 | ar->remaining_bits_len = remaining_bits_len; |
| 2647 | ar->bit_offset = bit_offset; |
| 2648 | return remaining_bits_len; |
| 2649 | } |
| 2650 | |
| 2651 | default: |
| 2652 | { |
| 2653 | assert(0); |
| 2654 | } |
| 2655 | |
| 2656 | } |
| 2657 | |
| 2658 | } while (remaining_bits_len >= 0); |
| 2659 | |
| 2660 | return ProcessError(writeIndex,"csnStreamEncoder", CSN_ERROR_NEED_MORE_BITS_TO_UNPACK, pDescr); |
| 2661 | } |
| 2662 | |