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1 | /** @file\r |
2 | Provide functions to provide tcg storage core spec related functions.\r | |
3 | \r | |
4 | Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>\r | |
5 | This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include <Library/TcgStorageCoreLib.h>\r | |
16 | \r | |
17 | #include <Library/BaseLib.h>\r | |
18 | #include <Library/BaseMemoryLib.h>\r | |
19 | #include <Library/DebugLib.h>\r | |
20 | //#include <Library/PrintLib.h>\r | |
21 | \r | |
22 | /**\r | |
23 | Required to be called before calling any other Tcg functions with the TCG_CREATE_STRUCT.\r | |
24 | Initializes the packet variables to NULL. Additionally, the buffer will be memset.\r | |
25 | \r | |
26 | @param [in/out] CreateStruct Structure to initialize\r | |
27 | @param [in] Buffer Buffer allocated by client of library. It will contain the Tcg encoded packet. This cannot be null.\r | |
28 | @param [in] BufferSize Size of buffer provided. It cannot be 0.\r | |
29 | \r | |
30 | @retval Return the action result.\r | |
31 | **/\r | |
32 | TCG_RESULT\r | |
33 | EFIAPI\r | |
34 | TcgInitTcgCreateStruct(\r | |
35 | TCG_CREATE_STRUCT *CreateStruct,\r | |
36 | VOID *Buffer,\r | |
37 | UINT32 BufferSize\r | |
38 | )\r | |
39 | {\r | |
40 | NULL_CHECK(CreateStruct);\r | |
41 | NULL_CHECK(Buffer);\r | |
42 | \r | |
43 | if (BufferSize == 0) {\r | |
44 | DEBUG ((DEBUG_INFO, "BufferSize=0\n"));\r | |
45 | return (TcgResultFailureZeroSize);\r | |
46 | }\r | |
47 | \r | |
48 | ZeroMem(Buffer, BufferSize);\r | |
49 | CreateStruct->BufferSize = BufferSize;\r | |
50 | CreateStruct->Buffer = Buffer;\r | |
51 | CreateStruct->ComPacket = NULL;\r | |
52 | CreateStruct->CurPacket = NULL;\r | |
53 | CreateStruct->CurSubPacket = NULL;\r | |
54 | \r | |
55 | return (TcgResultSuccess);\r | |
56 | }\r | |
57 | \r | |
58 | /**\r | |
59 | \r | |
60 | Encodes the ComPacket header to the data structure.\r | |
61 | \r | |
62 | @param[in/out] CreateStruct Structure to initialize\r | |
63 | @param[in] ComId ComID of the Tcg ComPacket.\r | |
64 | @param[in] ComIdExtension ComID Extension of the Tcg ComPacket.\r | |
65 | \r | |
66 | **/\r | |
67 | TCG_RESULT\r | |
68 | EFIAPI\r | |
69 | TcgStartComPacket(\r | |
70 | TCG_CREATE_STRUCT *CreateStruct,\r | |
71 | UINT16 ComId,\r | |
72 | UINT16 ComIdExtension\r | |
73 | )\r | |
74 | {\r | |
75 | NULL_CHECK(CreateStruct);\r | |
76 | \r | |
77 | if (CreateStruct->ComPacket != NULL ||\r | |
78 | CreateStruct->CurPacket != NULL ||\r | |
79 | CreateStruct->CurSubPacket != NULL\r | |
80 | ) {\r | |
81 | DEBUG ((DEBUG_INFO, "unexpected state: ComPacket=%p CurPacket=%p CurSubPacket=%p\n", CreateStruct->ComPacket, CreateStruct->CurPacket,\r | |
82 | CreateStruct->CurSubPacket));\r | |
83 | return (TcgResultFailureInvalidAction);\r | |
84 | }\r | |
85 | \r | |
86 | if (sizeof(TCG_COM_PACKET) > CreateStruct->BufferSize) {\r | |
87 | DEBUG ((DEBUG_INFO, "BufferSize=0x%X\n", CreateStruct->BufferSize));\r | |
88 | return (TcgResultFailureBufferTooSmall);\r | |
89 | }\r | |
90 | \r | |
91 | CreateStruct->ComPacket = (TCG_COM_PACKET*)CreateStruct->Buffer;\r | |
92 | CreateStruct->ComPacket->ComIDBE = SwapBytes16(ComId);\r | |
93 | CreateStruct->ComPacket->ComIDExtensionBE = SwapBytes16(ComIdExtension);\r | |
94 | \r | |
95 | return (TcgResultSuccess);\r | |
96 | }\r | |
97 | \r | |
98 | /**\r | |
99 | \r | |
100 | Starts a new ComPacket in the Data structure.\r | |
101 | \r | |
102 | @param [in/out] CreateStruct Structure used to add Tcg Packet\r | |
103 | @param[in] Tsn Packet Tper session number\r | |
104 | @param[in] Hsn Packet Host session number\r | |
105 | @param[in] SeqNumber Packet Sequence Number\r | |
106 | @param[in] AckType Packet Acknowledge Type\r | |
107 | @param[in] Ack Packet Acknowledge\r | |
108 | \r | |
109 | **/\r | |
110 | TCG_RESULT\r | |
111 | EFIAPI\r | |
112 | TcgStartPacket(\r | |
113 | TCG_CREATE_STRUCT *CreateStruct,\r | |
114 | UINT32 Tsn,\r | |
115 | UINT32 Hsn,\r | |
116 | UINT32 SeqNumber,\r | |
117 | UINT16 AckType,\r | |
118 | UINT32 Ack\r | |
119 | )\r | |
120 | {\r | |
121 | UINT32 AddedSize;\r | |
122 | NULL_CHECK(CreateStruct);\r | |
123 | \r | |
124 | AddedSize = 0;\r | |
125 | \r | |
126 | if (CreateStruct->ComPacket == NULL ||\r | |
127 | CreateStruct->CurPacket != NULL ||\r | |
128 | CreateStruct->CurSubPacket != NULL\r | |
129 | ) {\r | |
130 | DEBUG ((DEBUG_INFO, "unexpected state: ComPacket=%p CurPacket=%p CurSubPacket=%p\n", CreateStruct->ComPacket, CreateStruct->CurPacket, CreateStruct->CurSubPacket));\r | |
131 | return (TcgResultFailureInvalidAction);\r | |
132 | }\r | |
133 | \r | |
134 | // update TCG_COM_PACKET and packet lengths\r | |
135 | AddedSize = sizeof(TCG_PACKET);\r | |
136 | \r | |
137 | if ((SwapBytes32(CreateStruct->ComPacket->LengthBE) + AddedSize) > CreateStruct->BufferSize) {\r | |
138 | DEBUG ((DEBUG_INFO, "BufferSize=0x%X\n", CreateStruct->BufferSize));\r | |
139 | return (TcgResultFailureBufferTooSmall);\r | |
140 | }\r | |
141 | \r | |
142 | CreateStruct->CurPacket = (TCG_PACKET*)(CreateStruct->ComPacket->Payload + SwapBytes32(CreateStruct->ComPacket->LengthBE));\r | |
143 | \r | |
144 | CreateStruct->CurPacket->TperSessionNumberBE = SwapBytes32( Tsn );\r | |
145 | CreateStruct->CurPacket->HostSessionNumberBE = SwapBytes32( Hsn );\r | |
146 | CreateStruct->CurPacket->SequenceNumberBE = SwapBytes32( SeqNumber );\r | |
147 | CreateStruct->CurPacket->AckTypeBE = SwapBytes16( AckType );\r | |
148 | CreateStruct->CurPacket->AcknowledgementBE = SwapBytes32( Ack );\r | |
149 | \r | |
150 | CreateStruct->CurPacket->LengthBE = 0;\r | |
151 | \r | |
152 | // update TCG_COM_PACKET Length for next pointer\r | |
153 | CreateStruct->ComPacket->LengthBE = SwapBytes32( SwapBytes32(CreateStruct->ComPacket->LengthBE) + AddedSize );\r | |
154 | \r | |
155 | return (TcgResultSuccess);\r | |
156 | }\r | |
157 | \r | |
158 | /**\r | |
159 | \r | |
160 | Starts a new SubPacket in the Data structure.\r | |
161 | \r | |
162 | @param[in/out] CreateStruct Structure used to start Tcg SubPacket\r | |
163 | @param[in] Kind SubPacket kind\r | |
164 | \r | |
165 | **/\r | |
166 | TCG_RESULT\r | |
167 | EFIAPI\r | |
168 | TcgStartSubPacket(\r | |
169 | TCG_CREATE_STRUCT *CreateStruct,\r | |
170 | UINT16 Kind\r | |
171 | )\r | |
172 | {\r | |
173 | UINT32 AddedSize;\r | |
174 | \r | |
175 | NULL_CHECK(CreateStruct);\r | |
176 | \r | |
177 | AddedSize = 0;\r | |
178 | \r | |
179 | if (CreateStruct->ComPacket == NULL ||\r | |
180 | CreateStruct->CurPacket == NULL ||\r | |
181 | CreateStruct->CurSubPacket != NULL\r | |
182 | ) {\r | |
183 | DEBUG ((DEBUG_INFO, "unexpected state: ComPacket=%p CurPacket=%p CurSubPacket=%p\n", CreateStruct->ComPacket, CreateStruct->CurPacket, CreateStruct->CurSubPacket));\r | |
184 | return (TcgResultFailureInvalidAction);\r | |
185 | }\r | |
186 | \r | |
187 | AddedSize = sizeof(TCG_SUB_PACKET);\r | |
188 | \r | |
189 | if ((SwapBytes32(CreateStruct->ComPacket->LengthBE) + AddedSize) > CreateStruct->BufferSize) {\r | |
190 | DEBUG ((DEBUG_INFO, "BufferSize=0x%X\n", CreateStruct->BufferSize));\r | |
191 | return (TcgResultFailureBufferTooSmall);\r | |
192 | }\r | |
193 | \r | |
194 | CreateStruct->CurSubPacket = (TCG_SUB_PACKET*)(CreateStruct->CurPacket->Payload + SwapBytes32(CreateStruct->CurPacket->LengthBE));\r | |
195 | CreateStruct->CurSubPacket->KindBE = SwapBytes16(Kind);\r | |
196 | \r | |
197 | // update lengths\r | |
198 | CreateStruct->CurSubPacket->LengthBE = 0;\r | |
199 | \r | |
200 | // update TCG_COM_PACKET and packet lengths\r | |
201 | CreateStruct->ComPacket->LengthBE = SwapBytes32(SwapBytes32(CreateStruct->ComPacket->LengthBE) + AddedSize);\r | |
202 | CreateStruct->CurPacket->LengthBE = SwapBytes32(SwapBytes32(CreateStruct->CurPacket->LengthBE) + AddedSize);\r | |
203 | \r | |
204 | return (TcgResultSuccess);\r | |
205 | }\r | |
206 | \r | |
207 | /**\r | |
208 | \r | |
209 | Ends the current SubPacket in the Data structure. This function will also perform the 4-byte padding\r | |
210 | required for Subpackets.\r | |
211 | \r | |
212 | @param[in/out] CreateStruct Structure used to end the current Tcg SubPacket\r | |
213 | \r | |
214 | **/\r | |
215 | TCG_RESULT\r | |
216 | EFIAPI\r | |
217 | TcgEndSubPacket(\r | |
218 | TCG_CREATE_STRUCT *CreateStruct\r | |
219 | )\r | |
220 | {\r | |
221 | UINT32 PadSize;\r | |
222 | \r | |
223 | NULL_CHECK(CreateStruct);\r | |
224 | \r | |
225 | PadSize = 0;\r | |
226 | \r | |
227 | if (CreateStruct->ComPacket == NULL ||\r | |
228 | CreateStruct->CurPacket == NULL ||\r | |
229 | CreateStruct->CurSubPacket == NULL\r | |
230 | ) {\r | |
231 | DEBUG ((DEBUG_INFO, "unexpected state: ComPacket=%p CurPacket=%p CurSubPacket=%p\n", CreateStruct->ComPacket, CreateStruct->CurPacket, CreateStruct->CurSubPacket));\r | |
232 | return (TcgResultFailureInvalidAction);\r | |
233 | }\r | |
234 | \r | |
235 | // align to 4-byte boundaries, so shift padding\r | |
236 | // pad Size does not apply to subpacket Length\r | |
237 | PadSize = TCG_SUBPACKET_ALIGNMENT - (SwapBytes32(CreateStruct->CurSubPacket->LengthBE) & (TCG_SUBPACKET_ALIGNMENT - 1));\r | |
238 | \r | |
239 | if (PadSize == TCG_SUBPACKET_ALIGNMENT) {\r | |
240 | PadSize = 0;\r | |
241 | }\r | |
242 | \r | |
243 | if ((SwapBytes32(CreateStruct->ComPacket->LengthBE) + PadSize) > CreateStruct->BufferSize) {\r | |
244 | DEBUG ((DEBUG_INFO, "BufferSize=0x%X\n", CreateStruct->BufferSize));\r | |
245 | return (TcgResultFailureBufferTooSmall);\r | |
246 | }\r | |
247 | \r | |
248 | CreateStruct->CurPacket->LengthBE = SwapBytes32(SwapBytes32(CreateStruct->CurPacket->LengthBE) + PadSize);\r | |
249 | CreateStruct->ComPacket->LengthBE = SwapBytes32(SwapBytes32(CreateStruct->ComPacket->LengthBE) + PadSize);\r | |
250 | \r | |
251 | CreateStruct->CurSubPacket = NULL;\r | |
252 | \r | |
253 | return (TcgResultSuccess);\r | |
254 | }\r | |
255 | \r | |
256 | /**\r | |
257 | \r | |
258 | Ends the current Packet in the Data structure.\r | |
259 | \r | |
260 | @param[in/out] CreateStruct Structure used to end the current Tcg Packet\r | |
261 | \r | |
262 | **/\r | |
263 | TCG_RESULT\r | |
264 | EFIAPI\r | |
265 | TcgEndPacket(\r | |
266 | TCG_CREATE_STRUCT *CreateStruct\r | |
267 | )\r | |
268 | {\r | |
269 | NULL_CHECK(CreateStruct);\r | |
270 | \r | |
271 | if (CreateStruct->ComPacket == NULL ||\r | |
272 | CreateStruct->CurPacket == NULL ||\r | |
273 | CreateStruct->CurSubPacket != NULL\r | |
274 | ) {\r | |
275 | DEBUG ((DEBUG_INFO, "unexpected state: ComPacket=%p CurPacket=%p CurSubPacket=%p\n", CreateStruct->ComPacket, CreateStruct->CurPacket, CreateStruct->CurSubPacket));\r | |
276 | return (TcgResultFailureInvalidAction);\r | |
277 | }\r | |
278 | \r | |
279 | CreateStruct->CurPacket = NULL;\r | |
280 | \r | |
281 | return (TcgResultSuccess);\r | |
282 | }\r | |
283 | \r | |
284 | /**\r | |
285 | \r | |
286 | Ends the ComPacket in the Data structure and ret\r | |
287 | \r | |
288 | @param [in/out] CreateStruct Structure used to end the Tcg ComPacket\r | |
289 | @param [in/out] Size Describes the Size of the entire ComPacket (Header and payload). Filled out by function.\r | |
290 | \r | |
291 | **/\r | |
292 | TCG_RESULT\r | |
293 | EFIAPI\r | |
294 | TcgEndComPacket(\r | |
295 | TCG_CREATE_STRUCT *CreateStruct,\r | |
296 | UINT32 *Size\r | |
297 | )\r | |
298 | {\r | |
299 | NULL_CHECK(CreateStruct);\r | |
300 | NULL_CHECK(Size);\r | |
301 | \r | |
302 | if (CreateStruct->ComPacket == NULL ||\r | |
303 | CreateStruct->CurPacket != NULL ||\r | |
304 | CreateStruct->CurSubPacket != NULL\r | |
305 | ) {\r | |
306 | DEBUG ((DEBUG_INFO, "unexpected state: ComPacket=%p CurPacket=%p CurSubPacket=%p\n", CreateStruct->ComPacket, CreateStruct->CurPacket, CreateStruct->CurSubPacket));\r | |
307 | return (TcgResultFailureInvalidAction);\r | |
308 | }\r | |
309 | \r | |
310 | *Size = SwapBytes32(CreateStruct->ComPacket->LengthBE) + sizeof(*CreateStruct->ComPacket);\r | |
311 | CreateStruct->ComPacket = NULL;\r | |
312 | \r | |
313 | return (TcgResultSuccess);\r | |
314 | }\r | |
315 | \r | |
316 | /**\r | |
317 | Adds raw Data with optional Header\r | |
318 | \r | |
319 | @param CreateStruct The create structure.\r | |
320 | @param Header The header structure.\r | |
321 | @param HeaderSize The header size.\r | |
322 | @param Data The data need to add.\r | |
323 | @param DataSize The data size.\r | |
324 | @param ByteSwapData Whether byte or swap data.\r | |
325 | \r | |
326 | **/\r | |
327 | TCG_RESULT\r | |
328 | TcgAddRawTokenData(\r | |
329 | TCG_CREATE_STRUCT *CreateStruct,\r | |
330 | const VOID *Header,\r | |
331 | UINT8 HeaderSize,\r | |
332 | const VOID *Data,\r | |
333 | UINT32 DataSize,\r | |
334 | BOOLEAN ByteSwapData\r | |
335 | )\r | |
336 | {\r | |
337 | UINT32 AddedSize;\r | |
338 | UINT8* Dest;\r | |
339 | const UINT8* DataBytes;\r | |
340 | UINT32 Index;\r | |
341 | \r | |
342 | AddedSize = 0;\r | |
343 | Index = 0;\r | |
344 | Dest = NULL;\r | |
345 | \r | |
346 | NULL_CHECK(CreateStruct);\r | |
347 | \r | |
348 | if ((HeaderSize != 0 && Header == NULL) ||\r | |
349 | (DataSize != 0 && Data == NULL)\r | |
350 | ) {\r | |
351 | DEBUG ((DEBUG_INFO, "HeaderSize=0x%X Header=%p DataSize=0x%X Data=%p\n", HeaderSize, Header, DataSize, Data));\r | |
352 | return (TcgResultFailureNullPointer);\r | |
353 | }\r | |
354 | \r | |
355 | if (CreateStruct->ComPacket == NULL ||\r | |
356 | CreateStruct->CurPacket == NULL ||\r | |
357 | CreateStruct->CurSubPacket == NULL\r | |
358 | ) {\r | |
359 | DEBUG ((DEBUG_INFO, "unexpected state: ComPacket=%p CurPacket=%p CurSubPacket=%p\n", CreateStruct->ComPacket, CreateStruct->CurPacket, CreateStruct->CurSubPacket));\r | |
360 | return (TcgResultFailureInvalidAction);\r | |
361 | }\r | |
362 | \r | |
363 | // verify there is enough Buffer Size\r | |
364 | AddedSize = HeaderSize + DataSize;\r | |
365 | if ((SwapBytes32(CreateStruct->ComPacket->LengthBE) + AddedSize) > CreateStruct->BufferSize) {\r | |
366 | return (TcgResultFailureBufferTooSmall);\r | |
367 | }\r | |
368 | \r | |
369 | // Get a pointer to where the new bytes should go\r | |
370 | Dest = CreateStruct->ComPacket->Payload + SwapBytes32(CreateStruct->ComPacket->LengthBE);\r | |
371 | \r | |
372 | switch (HeaderSize) {\r | |
373 | case sizeof(TCG_SIMPLE_TOKEN_SHORT_ATOM):\r | |
374 | case sizeof(TCG_SIMPLE_TOKEN_MEDIUM_ATOM):\r | |
375 | case sizeof(TCG_SIMPLE_TOKEN_LONG_ATOM):\r | |
376 | CopyMem(Dest, Header, HeaderSize);\r | |
377 | Dest += HeaderSize;\r | |
378 | case 0: // no Header is valid\r | |
379 | break;\r | |
380 | // invalid Header Size\r | |
381 | default:\r | |
382 | DEBUG ((DEBUG_INFO, "unsupported HeaderSize=%u\n", HeaderSize));\r | |
383 | return TcgResultFailure;\r | |
384 | }\r | |
385 | \r | |
386 | // copy the Data bytes\r | |
387 | if (ByteSwapData) {\r | |
388 | DataBytes = (const UINT8*)Data;\r | |
389 | for (Index = 0; Index < DataSize; Index++) {\r | |
390 | Dest[Index] = DataBytes[DataSize - 1 - Index];\r | |
391 | }\r | |
392 | } else {\r | |
393 | CopyMem(Dest, Data, DataSize);\r | |
394 | }\r | |
395 | \r | |
396 | // Update all the packet sizes\r | |
397 | CreateStruct->ComPacket->LengthBE = SwapBytes32(SwapBytes32(CreateStruct->ComPacket->LengthBE) + AddedSize);\r | |
398 | CreateStruct->CurPacket->LengthBE = SwapBytes32(SwapBytes32(CreateStruct->CurPacket->LengthBE) + AddedSize);\r | |
399 | CreateStruct->CurSubPacket->LengthBE = SwapBytes32(SwapBytes32(CreateStruct->CurSubPacket->LengthBE) + AddedSize);\r | |
400 | \r | |
401 | return (TcgResultSuccess);\r | |
402 | }\r | |
403 | \r | |
404 | /**\r | |
405 | \r | |
406 | Adds a single raw token byte to the Data structure.\r | |
407 | \r | |
408 | @param[in/out] CreateStruct Structure used to add the byte\r | |
409 | @param[in] Byte Byte to add\r | |
410 | \r | |
411 | **/\r | |
412 | TCG_RESULT\r | |
413 | EFIAPI\r | |
414 | TcgAddRawByte(\r | |
415 | TCG_CREATE_STRUCT *CreateStruct,\r | |
416 | UINT8 Byte\r | |
417 | )\r | |
418 | {\r | |
419 | return TcgAddRawTokenData(CreateStruct, NULL, 0, &Byte, 1, FALSE);\r | |
420 | }\r | |
421 | \r | |
422 | \r | |
423 | /**\r | |
424 | simple tokens - atoms: tiny, short, medium, long and empty atoms.\r | |
425 | tiny atom can be a signed or unsigned integer.\r | |
426 | short, medium, long can be a signed or unsigned integer OR a complete or non-final byte sequence.\r | |
427 | \r | |
428 | @param CreateStruct The create structure.\r | |
429 | @param Data The data need to add.\r | |
430 | @param DataSize The data size.\r | |
431 | @param ByteOrInt, Data format is byte or int.\r | |
432 | @param SignOrCont sign or cont.\r | |
433 | \r | |
434 | \r | |
435 | **/\r | |
436 | TCG_RESULT\r | |
437 | TcgAddAtom(\r | |
438 | TCG_CREATE_STRUCT *CreateStruct,\r | |
439 | const VOID *Data,\r | |
440 | UINT32 DataSize,\r | |
441 | UINT8 ByteOrInt,\r | |
442 | UINT8 SignOrCont\r | |
443 | )\r | |
444 | {\r | |
445 | const UINT8* DataBytes;\r | |
446 | TCG_SIMPLE_TOKEN_TINY_ATOM TinyAtom;\r | |
447 | TCG_SIMPLE_TOKEN_SHORT_ATOM ShortAtom;\r | |
448 | TCG_SIMPLE_TOKEN_MEDIUM_ATOM MediumAtom;\r | |
449 | TCG_SIMPLE_TOKEN_LONG_ATOM LongAtom;\r | |
450 | \r | |
451 | NULL_CHECK(CreateStruct);\r | |
452 | \r | |
453 | if (DataSize == 0) {\r | |
454 | if (ByteOrInt == TCG_ATOM_TYPE_INTEGER) {\r | |
455 | DEBUG ((DEBUG_INFO, "0-Size integer not allowed\n"));\r | |
456 | return TcgResultFailure;\r | |
457 | }\r | |
458 | } else {\r | |
459 | // if DataSize != 0, Data must be valid\r | |
460 | NULL_CHECK(Data);\r | |
461 | }\r | |
462 | \r | |
463 | // encode Data using the shortest possible atom\r | |
464 | DataBytes = (const UINT8*)Data;\r | |
465 | if ((DataSize == 1) &&\r | |
466 | (ByteOrInt == TCG_ATOM_TYPE_INTEGER) &&\r | |
467 | ((SignOrCont != 0 && ((TCG_TOKEN_TINYATOM_SIGNED_MIN_VALUE <= *(INT8*)Data) && (*(INT8*)Data <= TCG_TOKEN_TINYATOM_SIGNED_MAX_VALUE))) ||\r | |
468 | (SignOrCont == 0 && ((*DataBytes <= TCG_TOKEN_TINYATOM_UNSIGNED_MAX_VALUE))))\r | |
469 | ) {\r | |
470 | TinyAtom.TinyAtomBits.IsZero = 0;\r | |
471 | TinyAtom.TinyAtomBits.Sign = SignOrCont;\r | |
472 | TinyAtom.TinyAtomBits.Data = *DataBytes & TCG_TOKEN_TINYATOM_UNSIGNED_MAX_VALUE;\r | |
473 | return TcgAddRawTokenData(CreateStruct, NULL, 0, (UINT8*)&TinyAtom, sizeof(TCG_SIMPLE_TOKEN_TINY_ATOM), FALSE);\r | |
474 | }\r | |
475 | \r | |
476 | if (DataSize <= TCG_TOKEN_SHORTATOM_MAX_BYTE_SIZE) {\r | |
477 | ShortAtom.ShortAtomBits.IsOne = 1;\r | |
478 | ShortAtom.ShortAtomBits.IsZero = 0;\r | |
479 | ShortAtom.ShortAtomBits.ByteOrInt = ByteOrInt;\r | |
480 | ShortAtom.ShortAtomBits.SignOrCont = SignOrCont;\r | |
481 | ShortAtom.ShortAtomBits.Length = DataSize & 0x0F;\r | |
482 | return TcgAddRawTokenData(CreateStruct, &ShortAtom, sizeof(TCG_SIMPLE_TOKEN_SHORT_ATOM), Data, DataSize, ByteOrInt == TCG_ATOM_TYPE_INTEGER);\r | |
483 | }\r | |
484 | \r | |
485 | if (DataSize <= TCG_TOKEN_MEDIUMATOM_MAX_BYTE_SIZE) {\r | |
486 | MediumAtom.MediumAtomBits.IsOne1 = 1;\r | |
487 | MediumAtom.MediumAtomBits.IsOne2 = 1;\r | |
488 | MediumAtom.MediumAtomBits.IsZero = 0;\r | |
489 | MediumAtom.MediumAtomBits.ByteOrInt = ByteOrInt;\r | |
490 | MediumAtom.MediumAtomBits.SignOrCont = SignOrCont;\r | |
491 | MediumAtom.MediumAtomBits.LengthLow = DataSize & 0xFF;\r | |
492 | MediumAtom.MediumAtomBits.LengthHigh = (DataSize >> TCG_MEDIUM_ATOM_LENGTH_HIGH_SHIFT) & TCG_MEDIUM_ATOM_LENGTH_HIGH_MASK;\r | |
493 | return TcgAddRawTokenData(CreateStruct, &MediumAtom, sizeof(TCG_SIMPLE_TOKEN_MEDIUM_ATOM), Data, DataSize, ByteOrInt == TCG_ATOM_TYPE_INTEGER);\r | |
494 | }\r | |
495 | \r | |
496 | LongAtom.LongAtomBits.IsOne1 = 1;\r | |
497 | LongAtom.LongAtomBits.IsOne2 = 1;\r | |
498 | LongAtom.LongAtomBits.IsOne3 = 1;\r | |
499 | LongAtom.LongAtomBits.IsZero = 0;\r | |
500 | LongAtom.LongAtomBits.ByteOrInt = ByteOrInt;\r | |
501 | LongAtom.LongAtomBits.SignOrCont = SignOrCont;\r | |
502 | LongAtom.LongAtomBits.LengthLow = DataSize & 0xFF;\r | |
503 | LongAtom.LongAtomBits.LengthMid = (DataSize >> TCG_LONG_ATOM_LENGTH_MID_SHIFT) & 0xFF;\r | |
504 | LongAtom.LongAtomBits.LengthHigh = (DataSize >> TCG_LONG_ATOM_LENGTH_HIGH_SHIFT) & 0xFF;\r | |
505 | return TcgAddRawTokenData(CreateStruct, &LongAtom, sizeof(TCG_SIMPLE_TOKEN_LONG_ATOM), Data, DataSize, ByteOrInt == TCG_ATOM_TYPE_INTEGER);\r | |
506 | }\r | |
507 | \r | |
508 | /**\r | |
509 | \r | |
510 | Adds the Data parameter as a byte sequence to the Data structure.\r | |
511 | \r | |
512 | @param[in/out] CreateStruct Structure used to add the byte sequence\r | |
513 | @param[in] Data Byte sequence that will be encoded and copied into Data structure\r | |
514 | @param[in] DataSize Length of Data provided\r | |
515 | @param[in] Continued TRUE if byte sequence is continued or\r | |
516 | FALSE if the Data contains the entire byte sequence to be encoded\r | |
517 | \r | |
518 | **/\r | |
519 | TCG_RESULT\r | |
520 | EFIAPI\r | |
521 | TcgAddByteSequence(\r | |
522 | TCG_CREATE_STRUCT *CreateStruct,\r | |
523 | const VOID *Data,\r | |
524 | UINT32 DataSize,\r | |
525 | BOOLEAN Continued\r | |
526 | )\r | |
527 | {\r | |
528 | return TcgAddAtom(CreateStruct, Data, DataSize, TCG_ATOM_TYPE_BYTE, Continued ? 1 : 0);\r | |
529 | }\r | |
530 | \r | |
531 | /**\r | |
532 | \r | |
533 | Adds an arbitrary-Length integer to the Data structure.\r | |
534 | The integer will be encoded using the shortest possible atom.\r | |
535 | \r | |
536 | @param[in/out] CreateStruct Structure used to add the integer\r | |
537 | @param[in] Data Integer in host byte order that will be encoded and copied into Data structure\r | |
538 | @param[in] DataSize Length in bytes of the Data provided\r | |
539 | @param[in] SignedInteger TRUE if the integer is signed or FALSE if the integer is unsigned\r | |
540 | \r | |
541 | **/\r | |
542 | TCG_RESULT\r | |
543 | EFIAPI\r | |
544 | TcgAddInteger(\r | |
545 | TCG_CREATE_STRUCT *CreateStruct,\r | |
546 | const VOID *Data,\r | |
547 | UINT32 DataSize,\r | |
548 | BOOLEAN SignedInteger\r | |
549 | )\r | |
550 | {\r | |
551 | const UINT8* DataBytes;\r | |
552 | UINT32 ActualDataSize;\r | |
553 | BOOLEAN ValueIsNegative;\r | |
554 | \r | |
555 | NULL_CHECK(CreateStruct);\r | |
556 | NULL_CHECK(Data);\r | |
557 | \r | |
558 | if (DataSize == 0) {\r | |
559 | DEBUG ((DEBUG_INFO, "invalid DataSize=0\n"));\r | |
560 | return TcgResultFailure;\r | |
561 | }\r | |
562 | \r | |
563 | DataBytes = (const UINT8*)Data;\r | |
564 | \r | |
565 | // integer should be represented by smallest atom possible\r | |
566 | // so calculate real Data Size\r | |
567 | ValueIsNegative = SignedInteger && DataBytes[ DataSize - 1 ] & 0x80;\r | |
568 | \r | |
569 | // assumes native Data is little endian\r | |
570 | // shorten Data to smallest byte representation\r | |
571 | for (ActualDataSize = DataSize; ActualDataSize > 1; ActualDataSize--) {\r | |
572 | // ignore sign extended FFs\r | |
573 | if (ValueIsNegative && (DataBytes[ActualDataSize - 1] != 0xFF)) {\r | |
574 | break;\r | |
575 | } else if (!ValueIsNegative && (DataBytes[ActualDataSize - 1] != 0)) {\r | |
576 | // ignore extended 00s\r | |
577 | break;\r | |
578 | }\r | |
579 | }\r | |
580 | \r | |
581 | return TcgAddAtom(CreateStruct, Data, ActualDataSize, TCG_ATOM_TYPE_INTEGER, SignedInteger ? 1 : 0);\r | |
582 | }\r | |
583 | \r | |
584 | /**\r | |
585 | Adds an 8-bit unsigned integer to the Data structure.\r | |
586 | \r | |
587 | @param[in/out] CreateStruct Structure used to add the integer\r | |
588 | @param[in] Value Integer Value to add\r | |
589 | \r | |
590 | **/\r | |
591 | TCG_RESULT\r | |
592 | EFIAPI\r | |
593 | TcgAddUINT8(\r | |
594 | TCG_CREATE_STRUCT *CreateStruct,\r | |
595 | UINT8 Value\r | |
596 | )\r | |
597 | {\r | |
598 | return TcgAddInteger(CreateStruct, &Value, sizeof(Value), FALSE);\r | |
599 | }\r | |
600 | \r | |
601 | /**\r | |
602 | \r | |
603 | Adds a 16-bit unsigned integer to the Data structure.\r | |
604 | \r | |
605 | @param[in/out] CreateStruct Structure used to add the integer\r | |
606 | @param[in] Value Integer Value to add\r | |
607 | \r | |
608 | **/\r | |
609 | TCG_RESULT\r | |
610 | EFIAPI\r | |
611 | TcgAddUINT16 (\r | |
612 | TCG_CREATE_STRUCT *CreateStruct,\r | |
613 | UINT16 Value\r | |
614 | )\r | |
615 | {\r | |
616 | return TcgAddInteger(CreateStruct, &Value, sizeof(Value), FALSE);\r | |
617 | }\r | |
618 | \r | |
619 | /**\r | |
620 | \r | |
621 | Adds a 32-bit unsigned integer to the Data structure.\r | |
622 | \r | |
623 | @param[in/out] CreateStruct Structure used to add the integer\r | |
624 | @param[in] Value Integer Value to add\r | |
625 | \r | |
626 | **/\r | |
627 | TCG_RESULT\r | |
628 | EFIAPI\r | |
629 | TcgAddUINT32(\r | |
630 | TCG_CREATE_STRUCT *CreateStruct,\r | |
631 | UINT32 Value\r | |
632 | )\r | |
633 | {\r | |
634 | return TcgAddInteger(CreateStruct, &Value, sizeof(Value), FALSE);\r | |
635 | }\r | |
636 | \r | |
637 | \r | |
638 | /**\r | |
639 | \r | |
640 | Adds a 64-bit unsigned integer to the Data structure.\r | |
641 | \r | |
642 | @param[in/out] CreateStruct Structure used to add the integer\r | |
643 | @param[in] Value Integer Value to add\r | |
644 | \r | |
645 | **/\r | |
646 | TCG_RESULT\r | |
647 | EFIAPI\r | |
648 | TcgAddUINT64(\r | |
649 | TCG_CREATE_STRUCT *CreateStruct,\r | |
650 | UINT64 Value\r | |
651 | )\r | |
652 | {\r | |
653 | return TcgAddInteger(CreateStruct, &Value, sizeof(Value), FALSE);\r | |
654 | }\r | |
655 | \r | |
656 | /**\r | |
657 | Adds a BOOLEAN to the Data structure.\r | |
658 | \r | |
659 | @param[in/out] CreateStruct Structure used to add the integer\r | |
660 | @param[in] Value BOOLEAN Value to add\r | |
661 | \r | |
662 | **/\r | |
663 | TCG_RESULT\r | |
664 | EFIAPI\r | |
665 | TcgAddBOOLEAN(\r | |
666 | TCG_CREATE_STRUCT *CreateStruct,\r | |
667 | BOOLEAN Value\r | |
668 | )\r | |
669 | {\r | |
670 | return TcgAddInteger(CreateStruct, &Value, sizeof(Value), FALSE);\r | |
671 | }\r | |
672 | \r | |
673 | /**\r | |
674 | Add tcg uid info.\r | |
675 | \r | |
676 | @param [in/out] CreateStruct Structure used to add the integer\r | |
677 | @param Uid Input uid info.\r | |
678 | \r | |
679 | @retval return the action result.\r | |
680 | \r | |
681 | **/\r | |
682 | TCG_RESULT\r | |
683 | EFIAPI\r | |
684 | TcgAddTcgUid(\r | |
685 | TCG_CREATE_STRUCT *CreateStruct,\r | |
686 | TCG_UID Uid\r | |
687 | )\r | |
688 | {\r | |
689 | return TcgAddByteSequence(CreateStruct, &Uid, sizeof(TCG_UID), FALSE);\r | |
690 | }\r | |
691 | \r | |
692 | /**\r | |
693 | Add start list.\r | |
694 | \r | |
695 | @param [in/out] CreateStruct Structure used to add the integer\r | |
696 | \r | |
697 | @retval return the action result.\r | |
698 | \r | |
699 | **/\r | |
700 | TCG_RESULT\r | |
701 | EFIAPI\r | |
702 | TcgAddStartList(\r | |
703 | TCG_CREATE_STRUCT *CreateStruct\r | |
704 | )\r | |
705 | {\r | |
706 | return TcgAddRawByte(CreateStruct, TCG_TOKEN_STARTLIST);\r | |
707 | }\r | |
708 | \r | |
709 | /**\r | |
710 | Add end list.\r | |
711 | \r | |
712 | @param [in/out] CreateStruct Structure used to add the integer\r | |
713 | \r | |
714 | @retval return the action result.\r | |
715 | \r | |
716 | **/\r | |
717 | TCG_RESULT\r | |
718 | EFIAPI\r | |
719 | TcgAddEndList(\r | |
720 | TCG_CREATE_STRUCT *CreateStruct\r | |
721 | )\r | |
722 | {\r | |
723 | return TcgAddRawByte(CreateStruct, TCG_TOKEN_ENDLIST);\r | |
724 | }\r | |
725 | \r | |
726 | /**\r | |
727 | Add start name.\r | |
728 | \r | |
729 | @param [in/out] CreateStruct Structure used to add the integer\r | |
730 | \r | |
731 | @retval return the action result.\r | |
732 | \r | |
733 | **/\r | |
734 | TCG_RESULT\r | |
735 | EFIAPI\r | |
736 | TcgAddStartName(\r | |
737 | TCG_CREATE_STRUCT *CreateStruct\r | |
738 | )\r | |
739 | {\r | |
740 | return TcgAddRawByte(CreateStruct, TCG_TOKEN_STARTNAME);\r | |
741 | }\r | |
742 | \r | |
743 | /**\r | |
744 | Add end name.\r | |
745 | \r | |
746 | @param [in/out] CreateStruct Structure used to add the integer\r | |
747 | \r | |
748 | @retval return the action result.\r | |
749 | \r | |
750 | **/\r | |
751 | TCG_RESULT\r | |
752 | EFIAPI\r | |
753 | TcgAddEndName(\r | |
754 | TCG_CREATE_STRUCT *CreateStruct\r | |
755 | )\r | |
756 | {\r | |
757 | return TcgAddRawByte(CreateStruct, TCG_TOKEN_ENDNAME);\r | |
758 | }\r | |
759 | \r | |
760 | /**\r | |
761 | Add end call.\r | |
762 | \r | |
763 | @param [in/out] CreateStruct Structure used to add the integer\r | |
764 | \r | |
765 | @retval return the action result.\r | |
766 | \r | |
767 | **/\r | |
768 | TCG_RESULT\r | |
769 | EFIAPI\r | |
770 | TcgAddCall(\r | |
771 | TCG_CREATE_STRUCT *CreateStruct\r | |
772 | )\r | |
773 | {\r | |
774 | return TcgAddRawByte(CreateStruct, TCG_TOKEN_CALL);\r | |
775 | }\r | |
776 | \r | |
777 | /**\r | |
778 | Add end of data.\r | |
779 | \r | |
780 | @param [in/out] CreateStruct Structure used to add the integer\r | |
781 | \r | |
782 | @retval return the action result.\r | |
783 | \r | |
784 | **/\r | |
785 | TCG_RESULT\r | |
786 | EFIAPI\r | |
787 | TcgAddEndOfData(\r | |
788 | TCG_CREATE_STRUCT *CreateStruct\r | |
789 | )\r | |
790 | {\r | |
791 | return TcgAddRawByte(CreateStruct, TCG_TOKEN_ENDDATA);\r | |
792 | }\r | |
793 | \r | |
794 | /**\r | |
795 | Add end of session.\r | |
796 | \r | |
797 | @param [in/out] CreateStruct Structure used to add the integer\r | |
798 | \r | |
799 | @retval return the action result.\r | |
800 | \r | |
801 | **/\r | |
802 | TCG_RESULT\r | |
803 | EFIAPI\r | |
804 | TcgAddEndOfSession(\r | |
805 | TCG_CREATE_STRUCT *CreateStruct\r | |
806 | )\r | |
807 | {\r | |
808 | return TcgAddRawByte(CreateStruct, TCG_TOKEN_ENDSESSION);\r | |
809 | }\r | |
810 | \r | |
811 | /**\r | |
812 | Add start transaction.\r | |
813 | \r | |
814 | @param [in/out] CreateStruct Structure used to add the integer\r | |
815 | \r | |
816 | @retval return the action result.\r | |
817 | \r | |
818 | **/\r | |
819 | TCG_RESULT\r | |
820 | EFIAPI\r | |
821 | TcgAddStartTransaction(\r | |
822 | TCG_CREATE_STRUCT *CreateStruct\r | |
823 | )\r | |
824 | {\r | |
825 | return TcgAddRawByte(CreateStruct, TCG_TOKEN_STARTTRANSACTION);\r | |
826 | }\r | |
827 | \r | |
828 | /**\r | |
829 | Add end transaction.\r | |
830 | \r | |
831 | @param [in/out] CreateStruct Structure used to add the integer\r | |
832 | \r | |
833 | @retval return the action result.\r | |
834 | \r | |
835 | **/\r | |
836 | TCG_RESULT\r | |
837 | EFIAPI\r | |
838 | TcgAddEndTransaction(\r | |
839 | TCG_CREATE_STRUCT *CreateStruct\r | |
840 | )\r | |
841 | {\r | |
842 | return TcgAddRawByte(CreateStruct, TCG_TOKEN_ENDTRANSACTION);\r | |
843 | }\r | |
844 | \r | |
845 | /**\r | |
846 | Initial the tcg parse stucture.\r | |
847 | \r | |
848 | @param ParseStruct Input parse structure.\r | |
849 | @param Buffer Input buffer data.\r | |
850 | @param BufferSize Input buffer size.\r | |
851 | \r | |
852 | @retval return the action result.\r | |
853 | \r | |
854 | **/\r | |
855 | TCG_RESULT\r | |
856 | EFIAPI\r | |
857 | TcgInitTcgParseStruct(\r | |
858 | TCG_PARSE_STRUCT *ParseStruct,\r | |
859 | const VOID *Buffer,\r | |
860 | UINT32 BufferSize\r | |
861 | )\r | |
862 | {\r | |
863 | UINT32 ComPacketLength;\r | |
864 | UINT32 PacketLength;\r | |
865 | \r | |
866 | NULL_CHECK(ParseStruct);\r | |
867 | NULL_CHECK(Buffer);\r | |
868 | \r | |
869 | if (BufferSize < sizeof(TCG_COM_PACKET)) {\r | |
870 | return (TcgResultFailureBufferTooSmall);\r | |
871 | }\r | |
872 | \r | |
873 | ParseStruct->ComPacket = (TCG_COM_PACKET*)Buffer;\r | |
874 | \r | |
875 | ComPacketLength = SwapBytes32(ParseStruct->ComPacket->LengthBE);\r | |
876 | \r | |
877 | if ((BufferSize - sizeof(TCG_COM_PACKET)) < ComPacketLength) {\r | |
878 | DEBUG ((DEBUG_INFO, "Buffer %u too small for ComPacket %u\n", BufferSize, ComPacketLength));\r | |
879 | return (TcgResultFailureBufferTooSmall);\r | |
880 | }\r | |
881 | \r | |
882 | ParseStruct->BufferSize = BufferSize;\r | |
883 | ParseStruct->Buffer = Buffer;\r | |
884 | \r | |
885 | ParseStruct->CurPacket = NULL;\r | |
886 | ParseStruct->CurSubPacket = NULL;\r | |
887 | ParseStruct->CurPtr = NULL;\r | |
888 | \r | |
889 | // if payload > 0, then must have a packet\r | |
890 | if (ComPacketLength != 0) {\r | |
891 | if (ComPacketLength < sizeof(TCG_PACKET)) {\r | |
892 | DEBUG ((DEBUG_INFO, "ComPacket too small for Packet\n"));\r | |
893 | return (TcgResultFailureBufferTooSmall);\r | |
894 | }\r | |
895 | ParseStruct->CurPacket = (TCG_PACKET*)ParseStruct->ComPacket->Payload;\r | |
896 | \r | |
897 | PacketLength = SwapBytes32(ParseStruct->CurPacket->LengthBE);\r | |
898 | \r | |
899 | if (PacketLength > 0) {\r | |
900 | if (PacketLength < sizeof(TCG_SUB_PACKET)) {\r | |
901 | DEBUG ((DEBUG_INFO, "Packet too small for SubPacket\n"));\r | |
902 | return (TcgResultFailureBufferTooSmall);\r | |
903 | }\r | |
904 | \r | |
905 | ParseStruct->CurSubPacket = (TCG_SUB_PACKET*)ParseStruct->CurPacket->Payload;\r | |
906 | }\r | |
907 | }\r | |
908 | \r | |
909 | //TODO should check for method status list at this point?\r | |
910 | \r | |
911 | return (TcgResultSuccess);\r | |
912 | }\r | |
913 | \r | |
914 | /**\r | |
915 | Get next token info.\r | |
916 | \r | |
917 | @param ParseStruct Input parse structure info.\r | |
918 | @param TcgToken return the tcg token info.\r | |
919 | \r | |
920 | @retval return the action result.\r | |
921 | \r | |
922 | **/\r | |
923 | TCG_RESULT\r | |
924 | EFIAPI\r | |
925 | TcgGetNextToken(\r | |
926 | TCG_PARSE_STRUCT *ParseStruct,\r | |
927 | TCG_TOKEN *TcgToken\r | |
928 | )\r | |
929 | {\r | |
930 | const UINT8* EndOfSubPacket;\r | |
931 | UINT8* TokenEnd;\r | |
932 | UINT8 Hdr;\r | |
933 | TCG_SIMPLE_TOKEN_SHORT_ATOM* TmpShort;\r | |
934 | const TCG_SIMPLE_TOKEN_MEDIUM_ATOM* TmpMed;\r | |
935 | const TCG_SIMPLE_TOKEN_LONG_ATOM* TmpLong;\r | |
936 | \r | |
937 | NULL_CHECK(ParseStruct);\r | |
938 | NULL_CHECK(TcgToken);\r | |
939 | \r | |
940 | if (ParseStruct->ComPacket == NULL ||\r | |
941 | ParseStruct->CurPacket == NULL ||\r | |
942 | ParseStruct->CurSubPacket == NULL\r | |
943 | ) {\r | |
944 | DEBUG ((DEBUG_INFO, "unexpected state: ComPacket=%p CurPacket=%p CurSubPacket=%p\n", ParseStruct->ComPacket, ParseStruct->CurPacket, ParseStruct->CurSubPacket));\r | |
945 | return TcgResultFailureInvalidAction;\r | |
946 | }\r | |
947 | \r | |
948 | // initial call, start at sub packet\r | |
949 | if (ParseStruct->CurPtr == NULL) {\r | |
950 | ParseStruct->CurPtr = ParseStruct->CurSubPacket->Payload;\r | |
951 | }\r | |
952 | \r | |
953 | EndOfSubPacket = ParseStruct->CurSubPacket->Payload + SwapBytes32(ParseStruct->CurSubPacket->LengthBE);\r | |
954 | TokenEnd = NULL;\r | |
955 | \r | |
956 | // confirmed that subpacket Length falls within end of Buffer and TCG_COM_PACKET,\r | |
957 | // so simply need to verify the loop stays within current subpacket\r | |
958 | if (ParseStruct->CurPtr >= EndOfSubPacket) {\r | |
959 | DEBUG ((DEBUG_INFO, "ParseStruct->CurPtr >= EndOfSubPacket\n"));\r | |
960 | return (TcgResultFailureEndBuffer);\r | |
961 | }\r | |
962 | \r | |
963 | Hdr = *ParseStruct->CurPtr;\r | |
964 | TcgToken->HdrStart = ParseStruct->CurPtr;\r | |
965 | \r | |
966 | // Tiny Atom range\r | |
967 | if (Hdr <= 0x7F) {\r | |
968 | // tiny atom Header is only 1 byte, so don't need to verify Size before cast and access\r | |
969 | TcgToken->Type = TcgTokenTypeTinyAtom;\r | |
970 | \r | |
971 | TokenEnd = TcgToken->HdrStart + sizeof(TCG_SIMPLE_TOKEN_TINY_ATOM);\r | |
972 | \r | |
973 | // verify caller will have enough Size to reference token\r | |
974 | if (TokenEnd >= EndOfSubPacket) {\r | |
975 | DEBUG ((DEBUG_INFO, "Tiny Atom TokenEnd >= EndOfSubPacket\n"));\r | |
976 | return (TcgResultFailureEndBuffer);\r | |
977 | }\r | |
978 | }\r | |
979 | // Short Atom Range\r | |
980 | else if (0x80 <= Hdr && Hdr <= 0xBF) {\r | |
981 | // short atom Header is only 1 byte, so don't need to verify Size before cast and access\r | |
982 | TmpShort = (TCG_SIMPLE_TOKEN_SHORT_ATOM*)(ParseStruct->CurPtr);\r | |
983 | TcgToken->Type = TcgTokenTypeShortAtom;\r | |
984 | \r | |
985 | TokenEnd = (TcgToken->HdrStart + sizeof(TCG_SIMPLE_TOKEN_SHORT_ATOM) + TmpShort->ShortAtomBits.Length);\r | |
986 | \r | |
987 | // verify caller will have enough Size to reference token\r | |
988 | if (TokenEnd >= EndOfSubPacket) {\r | |
989 | DEBUG ((DEBUG_INFO, "Short Atom TokenEnd >= EndOfSubPacket\n"));\r | |
990 | return (TcgResultFailureEndBuffer);\r | |
991 | }\r | |
992 | }\r | |
993 | // Medium Atom Range\r | |
994 | else if (0xC0 <= Hdr && Hdr <= 0xDF) {\r | |
995 | if (TcgToken->HdrStart + sizeof(TCG_SIMPLE_TOKEN_MEDIUM_ATOM) >= EndOfSubPacket) {\r | |
996 | return (TcgResultFailureEndBuffer);\r | |
997 | }\r | |
998 | TmpMed = (const TCG_SIMPLE_TOKEN_MEDIUM_ATOM*)ParseStruct->CurPtr;\r | |
999 | TcgToken->Type = TcgTokenTypeMediumAtom;\r | |
1000 | TokenEnd = TcgToken->HdrStart + sizeof(TCG_SIMPLE_TOKEN_MEDIUM_ATOM) +\r | |
1001 | ((TmpMed->MediumAtomBits.LengthHigh << TCG_MEDIUM_ATOM_LENGTH_HIGH_SHIFT) |\r | |
1002 | TmpMed->MediumAtomBits.LengthLow);\r | |
1003 | \r | |
1004 | // verify caller will have enough Size to reference token\r | |
1005 | if (TokenEnd >= EndOfSubPacket) {\r | |
1006 | DEBUG ((DEBUG_INFO, "Medium Atom TokenEnd >= EndOfSubPacket\n"));\r | |
1007 | return (TcgResultFailureEndBuffer);\r | |
1008 | }\r | |
1009 | }\r | |
1010 | // Long Atom Range\r | |
1011 | else if (0xE0 <= Hdr && Hdr <= 0xE3) {\r | |
1012 | if (TcgToken->HdrStart + sizeof(TCG_SIMPLE_TOKEN_LONG_ATOM) >= EndOfSubPacket) {\r | |
1013 | return (TcgResultFailureEndBuffer);\r | |
1014 | }\r | |
1015 | TmpLong = (const TCG_SIMPLE_TOKEN_LONG_ATOM*)ParseStruct->CurPtr;\r | |
1016 | TcgToken->Type = TcgTokenTypeLongAtom;\r | |
1017 | \r | |
1018 | TokenEnd = TcgToken->HdrStart + sizeof(TCG_SIMPLE_TOKEN_LONG_ATOM) +\r | |
1019 | ((TmpLong->LongAtomBits.LengthHigh << TCG_LONG_ATOM_LENGTH_HIGH_SHIFT) |\r | |
1020 | (TmpLong->LongAtomBits.LengthMid << TCG_LONG_ATOM_LENGTH_MID_SHIFT) |\r | |
1021 | TmpLong->LongAtomBits.LengthLow);\r | |
1022 | \r | |
1023 | // verify caller will have enough Size to reference token\r | |
1024 | if (TokenEnd >= EndOfSubPacket) {\r | |
1025 | DEBUG ((DEBUG_INFO, "Long Atom TokenEnd >= EndOfSubPacket\n"));\r | |
1026 | return (TcgResultFailureEndBuffer);\r | |
1027 | }\r | |
1028 | } else {\r | |
1029 | // single byte tokens\r | |
1030 | switch (Hdr) {\r | |
1031 | case TCG_TOKEN_STARTLIST:\r | |
1032 | TcgToken->Type = TcgTokenTypeStartList;\r | |
1033 | break;\r | |
1034 | case TCG_TOKEN_ENDLIST:\r | |
1035 | TcgToken->Type = TcgTokenTypeEndList;\r | |
1036 | break;\r | |
1037 | case TCG_TOKEN_STARTNAME:\r | |
1038 | TcgToken->Type = TcgTokenTypeStartName;\r | |
1039 | break;\r | |
1040 | case TCG_TOKEN_ENDNAME:\r | |
1041 | TcgToken->Type = TcgTokenTypeEndName;\r | |
1042 | break;\r | |
1043 | case TCG_TOKEN_CALL:\r | |
1044 | TcgToken->Type = TcgTokenTypeCall;\r | |
1045 | break;\r | |
1046 | case TCG_TOKEN_ENDDATA:\r | |
1047 | TcgToken->Type = TcgTokenTypeEndOfData;\r | |
1048 | break;\r | |
1049 | case TCG_TOKEN_ENDSESSION:\r | |
1050 | TcgToken->Type = TcgTokenTypeEndOfSession;\r | |
1051 | break;\r | |
1052 | case TCG_TOKEN_STARTTRANSACTION:\r | |
1053 | TcgToken->Type = TcgTokenTypeStartTransaction;\r | |
1054 | break;\r | |
1055 | case TCG_TOKEN_ENDTRANSACTION:\r | |
1056 | TcgToken->Type = TcgTokenTypeEndTransaction;\r | |
1057 | break;\r | |
1058 | case TCG_TOKEN_EMPTY:\r | |
1059 | TcgToken->Type = TcgTokenTypeEmptyAtom;\r | |
1060 | break;\r | |
1061 | default:\r | |
1062 | DEBUG ((DEBUG_INFO, "WARNING: reserved token Type 0x%02X\n", Hdr));\r | |
1063 | TcgToken->Type = TcgTokenTypeReserved;\r | |
1064 | break;\r | |
1065 | }\r | |
1066 | ParseStruct->CurPtr++;\r | |
1067 | TokenEnd = TcgToken->HdrStart + 1;\r | |
1068 | }\r | |
1069 | \r | |
1070 | // increment curptr for next call\r | |
1071 | ParseStruct->CurPtr = TokenEnd;\r | |
1072 | return (TcgResultSuccess);\r | |
1073 | }\r | |
1074 | \r | |
1075 | /**\r | |
1076 | Get atom info.\r | |
1077 | \r | |
1078 | @param TcgToken Input token info.\r | |
1079 | @param HeaderLength return the header length.\r | |
1080 | @param DataLength return the data length.\r | |
1081 | @param ByteOrInt return the atom Type.\r | |
1082 | @param SignOrCont return the sign or count info.\r | |
1083 | \r | |
1084 | @retval return the action result.\r | |
1085 | \r | |
1086 | **/\r | |
1087 | TCG_RESULT\r | |
1088 | EFIAPI\r | |
1089 | TcgGetAtomInfo(\r | |
1090 | const TCG_TOKEN *TcgToken,\r | |
1091 | UINT32 *HeaderLength,\r | |
1092 | UINT32 *DataLength,\r | |
1093 | UINT8 *ByteOrInt,\r | |
1094 | UINT8 *SignOrCont\r | |
1095 | )\r | |
1096 | {\r | |
1097 | TCG_SIMPLE_TOKEN_TINY_ATOM* TinyAtom;\r | |
1098 | TCG_SIMPLE_TOKEN_SHORT_ATOM* ShortAtom;\r | |
1099 | TCG_SIMPLE_TOKEN_MEDIUM_ATOM* MediumAtom;\r | |
1100 | TCG_SIMPLE_TOKEN_LONG_ATOM* LongAtom;\r | |
1101 | \r | |
1102 | NULL_CHECK(TcgToken);\r | |
1103 | NULL_CHECK(HeaderLength);\r | |
1104 | NULL_CHECK(DataLength);\r | |
1105 | NULL_CHECK(ByteOrInt);\r | |
1106 | NULL_CHECK(SignOrCont);\r | |
1107 | \r | |
1108 | switch (TcgToken->Type) {\r | |
1109 | case TcgTokenTypeTinyAtom: {\r | |
1110 | TinyAtom = (TCG_SIMPLE_TOKEN_TINY_ATOM*)TcgToken->HdrStart;\r | |
1111 | *ByteOrInt = TCG_ATOM_TYPE_INTEGER;\r | |
1112 | *SignOrCont = TinyAtom->TinyAtomBits.Sign;\r | |
1113 | *HeaderLength = 0;\r | |
1114 | *DataLength = 0; // tiny atom must be handled as a special case - Header and Data in the same byte\r | |
1115 | return TcgResultSuccess;\r | |
1116 | }\r | |
1117 | \r | |
1118 | case TcgTokenTypeShortAtom: {\r | |
1119 | ShortAtom = (TCG_SIMPLE_TOKEN_SHORT_ATOM*)TcgToken->HdrStart;\r | |
1120 | *ByteOrInt = ShortAtom->ShortAtomBits.ByteOrInt;\r | |
1121 | *SignOrCont = ShortAtom->ShortAtomBits.SignOrCont;\r | |
1122 | *HeaderLength = sizeof(TCG_SIMPLE_TOKEN_SHORT_ATOM);\r | |
1123 | *DataLength = ShortAtom->ShortAtomBits.Length;\r | |
1124 | return TcgResultSuccess;\r | |
1125 | }\r | |
1126 | \r | |
1127 | case TcgTokenTypeMediumAtom: {\r | |
1128 | MediumAtom = (TCG_SIMPLE_TOKEN_MEDIUM_ATOM*)TcgToken->HdrStart;\r | |
1129 | *ByteOrInt = MediumAtom->MediumAtomBits.ByteOrInt;\r | |
1130 | *SignOrCont = MediumAtom->MediumAtomBits.SignOrCont;\r | |
1131 | *HeaderLength = sizeof(TCG_SIMPLE_TOKEN_MEDIUM_ATOM);\r | |
1132 | *DataLength = (MediumAtom->MediumAtomBits.LengthHigh << TCG_MEDIUM_ATOM_LENGTH_HIGH_SHIFT) | MediumAtom->MediumAtomBits.LengthLow;\r | |
1133 | return TcgResultSuccess;\r | |
1134 | }\r | |
1135 | \r | |
1136 | case TcgTokenTypeLongAtom: {\r | |
1137 | LongAtom = (TCG_SIMPLE_TOKEN_LONG_ATOM*)TcgToken->HdrStart;\r | |
1138 | *ByteOrInt = LongAtom->LongAtomBits.ByteOrInt;\r | |
1139 | *SignOrCont = LongAtom->LongAtomBits.SignOrCont;\r | |
1140 | *HeaderLength = sizeof(TCG_SIMPLE_TOKEN_LONG_ATOM);\r | |
1141 | *DataLength = (LongAtom->LongAtomBits.LengthHigh << TCG_LONG_ATOM_LENGTH_HIGH_SHIFT) |\r | |
1142 | (LongAtom->LongAtomBits.LengthMid << TCG_LONG_ATOM_LENGTH_MID_SHIFT) |\r | |
1143 | LongAtom->LongAtomBits.LengthLow;\r | |
1144 | return TcgResultSuccess;\r | |
1145 | }\r | |
1146 | \r | |
1147 | default:\r | |
1148 | DEBUG ((DEBUG_INFO, "Token Type is not simple atom (%d)\n", TcgToken->Type));\r | |
1149 | return (TcgResultFailureInvalidType);\r | |
1150 | }\r | |
1151 | }\r | |
1152 | \r | |
1153 | /**\r | |
1154 | Get token specified value.\r | |
1155 | \r | |
1156 | @param TcgToken Input token info.\r | |
1157 | @param Value return the value.\r | |
1158 | \r | |
1159 | @retval return the action result.\r | |
1160 | \r | |
1161 | **/\r | |
1162 | TCG_RESULT\r | |
1163 | EFIAPI\r | |
1164 | TcgGetTokenUINT64(\r | |
1165 | const TCG_TOKEN *TcgToken,\r | |
1166 | UINT64 *Value\r | |
1167 | )\r | |
1168 | {\r | |
1169 | UINT32 HdrLength;\r | |
1170 | UINT32 DataLength;\r | |
1171 | UINT8 ByteOrInt;\r | |
1172 | UINT8 IsSigned;\r | |
1173 | TCG_SIMPLE_TOKEN_TINY_ATOM* TmpTiny;\r | |
1174 | const UINT8* Data;\r | |
1175 | UINT32 Index;\r | |
1176 | \r | |
1177 | NULL_CHECK(TcgToken);\r | |
1178 | NULL_CHECK(Value);\r | |
1179 | \r | |
1180 | Index = 0;\r | |
1181 | *Value = 0;\r | |
1182 | ERROR_CHECK(TcgGetAtomInfo(TcgToken, &HdrLength, &DataLength, &ByteOrInt, &IsSigned));\r | |
1183 | \r | |
1184 | if (ByteOrInt != TCG_ATOM_TYPE_INTEGER) {\r | |
1185 | DEBUG ((DEBUG_INFO, "Invalid Type, expected integer not byte sequence\n"));\r | |
1186 | return TcgResultFailureInvalidType;\r | |
1187 | }\r | |
1188 | \r | |
1189 | if (IsSigned != 0) {\r | |
1190 | DEBUG ((DEBUG_INFO, "Integer is signed, expected unsigned\n"));\r | |
1191 | return TcgResultFailureInvalidType;\r | |
1192 | }\r | |
1193 | \r | |
1194 | // special case for tiny atom\r | |
1195 | // Header and Data are in one byte, so extract only the Data bitfield\r | |
1196 | if (TcgToken->Type == TcgTokenTypeTinyAtom) {\r | |
1197 | TmpTiny = (TCG_SIMPLE_TOKEN_TINY_ATOM*)TcgToken->HdrStart;\r | |
1198 | *Value = TmpTiny->TinyAtomBits.Data;\r | |
1199 | return TcgResultSuccess;\r | |
1200 | }\r | |
1201 | \r | |
1202 | if (DataLength > sizeof(UINT64)) {\r | |
1203 | DEBUG ((DEBUG_INFO, "Length %d is greater than Size of UINT64\n", DataLength));\r | |
1204 | return TcgResultFailureBufferTooSmall;\r | |
1205 | }\r | |
1206 | \r | |
1207 | // read big-endian integer\r | |
1208 | Data = TcgToken->HdrStart + HdrLength;\r | |
1209 | for (Index = 0; Index < DataLength; Index++) {\r | |
1210 | *Value = LShiftU64(*Value, 8) | Data[Index];\r | |
1211 | }\r | |
1212 | \r | |
1213 | return TcgResultSuccess;\r | |
1214 | }\r | |
1215 | \r | |
1216 | /**\r | |
1217 | Get token byte sequence.\r | |
1218 | \r | |
1219 | @param TcgToken Input token info.\r | |
1220 | @param Length Input the length info.\r | |
1221 | \r | |
1222 | @retval Return the value data.\r | |
1223 | \r | |
1224 | **/\r | |
1225 | UINT8*\r | |
1226 | EFIAPI\r | |
1227 | TcgGetTokenByteSequence(\r | |
1228 | const TCG_TOKEN *TcgToken,\r | |
1229 | UINT32 *Length\r | |
1230 | )\r | |
1231 | {\r | |
1232 | UINT32 HdrLength;\r | |
1233 | UINT8 ByteOrInt;\r | |
1234 | UINT8 SignOrCont;\r | |
1235 | \r | |
1236 | if (TcgToken == NULL || Length == NULL) {\r | |
1237 | return NULL;\r | |
1238 | }\r | |
1239 | \r | |
1240 | *Length = 0;\r | |
1241 | if (TcgGetAtomInfo(TcgToken, &HdrLength, Length, &ByteOrInt, &SignOrCont) != TcgResultSuccess) {\r | |
1242 | DEBUG ((DEBUG_INFO, "Failed to get simple token info\n"));\r | |
1243 | return NULL;\r | |
1244 | }\r | |
1245 | \r | |
1246 | if (ByteOrInt != TCG_ATOM_TYPE_BYTE) {\r | |
1247 | DEBUG ((DEBUG_INFO, "Invalid Type, expected byte sequence not integer\n"));\r | |
1248 | return NULL;\r | |
1249 | }\r | |
1250 | \r | |
1251 | return (TcgToken->HdrStart + HdrLength);\r | |
1252 | }\r | |
1253 | \r | |
1254 | /**\r | |
1255 | Get next specify value.\r | |
1256 | \r | |
1257 | @param ParseStruct Input parse structure.\r | |
1258 | @param Value Return vlaue.\r | |
1259 | \r | |
1260 | @retval return the action result.\r | |
1261 | \r | |
1262 | **/\r | |
1263 | TCG_RESULT\r | |
1264 | EFIAPI\r | |
1265 | TcgGetNextUINT8(\r | |
1266 | TCG_PARSE_STRUCT *ParseStruct,\r | |
1267 | UINT8 *Value\r | |
1268 | )\r | |
1269 | {\r | |
1270 | UINT64 Value64;\r | |
1271 | TCG_TOKEN Tok;\r | |
1272 | \r | |
1273 | NULL_CHECK(Value);\r | |
1274 | \r | |
1275 | ERROR_CHECK(TcgGetNextToken(ParseStruct, &Tok));\r | |
1276 | ERROR_CHECK(TcgGetTokenUINT64(&Tok, &Value64));\r | |
1277 | \r | |
1278 | if (Value64 > MAX_UINT8) {\r | |
1279 | return TcgResultFailure;\r | |
1280 | }\r | |
1281 | \r | |
1282 | *Value = (UINT8)Value64;\r | |
1283 | \r | |
1284 | return TcgResultSuccess;\r | |
1285 | }\r | |
1286 | \r | |
1287 | /**\r | |
1288 | Get next specify value.\r | |
1289 | \r | |
1290 | @param ParseStruct Input parse structure.\r | |
1291 | @param Value Return vlaue.\r | |
1292 | \r | |
1293 | @retval return the action result.\r | |
1294 | \r | |
1295 | **/\r | |
1296 | TCG_RESULT\r | |
1297 | EFIAPI\r | |
1298 | TcgGetNextUINT16(\r | |
1299 | TCG_PARSE_STRUCT *ParseStruct,\r | |
1300 | UINT16 *Value\r | |
1301 | )\r | |
1302 | {\r | |
1303 | UINT64 Value64;\r | |
1304 | TCG_TOKEN Tok;\r | |
1305 | \r | |
1306 | NULL_CHECK(Value);\r | |
1307 | \r | |
1308 | ERROR_CHECK(TcgGetNextToken(ParseStruct, &Tok));\r | |
1309 | ERROR_CHECK(TcgGetTokenUINT64(&Tok, &Value64));\r | |
1310 | \r | |
1311 | if (Value64 > MAX_UINT16) {\r | |
1312 | return TcgResultFailure;\r | |
1313 | }\r | |
1314 | \r | |
1315 | *Value = (UINT16)Value64;\r | |
1316 | \r | |
1317 | return TcgResultSuccess;\r | |
1318 | }\r | |
1319 | \r | |
1320 | /**\r | |
1321 | Get next specify value.\r | |
1322 | \r | |
1323 | @param ParseStruct Input parse structure.\r | |
1324 | @param Value Return vlaue.\r | |
1325 | \r | |
1326 | @retval return the action result.\r | |
1327 | \r | |
1328 | **/\r | |
1329 | TCG_RESULT\r | |
1330 | EFIAPI\r | |
1331 | TcgGetNextUINT32(\r | |
1332 | TCG_PARSE_STRUCT *ParseStruct,\r | |
1333 | UINT32 *Value\r | |
1334 | )\r | |
1335 | {\r | |
1336 | UINT64 Value64;\r | |
1337 | TCG_TOKEN Tok;\r | |
1338 | \r | |
1339 | NULL_CHECK(Value);\r | |
1340 | \r | |
1341 | ERROR_CHECK(TcgGetNextToken(ParseStruct, &Tok));\r | |
1342 | ERROR_CHECK(TcgGetTokenUINT64(&Tok, &Value64));\r | |
1343 | \r | |
1344 | if (Value64 > MAX_UINT32) {\r | |
1345 | return TcgResultFailure;\r | |
1346 | }\r | |
1347 | \r | |
1348 | *Value = (UINT32)Value64;\r | |
1349 | \r | |
1350 | return TcgResultSuccess;\r | |
1351 | }\r | |
1352 | \r | |
1353 | /**\r | |
1354 | Get next specify value.\r | |
1355 | \r | |
1356 | @param ParseStruct Input parse structure.\r | |
1357 | @param Value Return vlaue.\r | |
1358 | \r | |
1359 | @retval return the action result.\r | |
1360 | \r | |
1361 | **/\r | |
1362 | TCG_RESULT\r | |
1363 | EFIAPI\r | |
1364 | TcgGetNextUINT64(\r | |
1365 | TCG_PARSE_STRUCT *ParseStruct,\r | |
1366 | UINT64 *Value\r | |
1367 | )\r | |
1368 | {\r | |
1369 | TCG_TOKEN Tok;\r | |
1370 | ERROR_CHECK(TcgGetNextToken(ParseStruct, &Tok));\r | |
1371 | ERROR_CHECK(TcgGetTokenUINT64(&Tok, Value));\r | |
1372 | return TcgResultSuccess;\r | |
1373 | }\r | |
1374 | \r | |
1375 | /**\r | |
1376 | Get next specify value.\r | |
1377 | \r | |
1378 | @param ParseStruct Input parse structure.\r | |
1379 | @param Value Return vlaue.\r | |
1380 | \r | |
1381 | @retval return the action result.\r | |
1382 | \r | |
1383 | **/\r | |
1384 | TCG_RESULT\r | |
1385 | EFIAPI\r | |
1386 | TcgGetNextBOOLEAN(\r | |
1387 | TCG_PARSE_STRUCT *ParseStruct,\r | |
1388 | BOOLEAN *Value\r | |
1389 | )\r | |
1390 | {\r | |
1391 | UINT64 Value64;\r | |
1392 | TCG_TOKEN Tok;\r | |
1393 | \r | |
1394 | NULL_CHECK(Value);\r | |
1395 | \r | |
1396 | ERROR_CHECK(TcgGetNextToken(ParseStruct, &Tok));\r | |
1397 | ERROR_CHECK(TcgGetTokenUINT64(&Tok, &Value64));\r | |
1398 | \r | |
1399 | if (Value64 > 1) {\r | |
1400 | return TcgResultFailure;\r | |
1401 | }\r | |
1402 | \r | |
1403 | *Value = (BOOLEAN)Value64;\r | |
1404 | \r | |
1405 | return TcgResultSuccess;\r | |
1406 | }\r | |
1407 | \r | |
1408 | /**\r | |
1409 | Get next tcg uid info.\r | |
1410 | \r | |
1411 | @param ParseStruct Input parse structure.\r | |
1412 | @param Uid Get the uid info.\r | |
1413 | \r | |
1414 | @retval return the action result.\r | |
1415 | \r | |
1416 | **/\r | |
1417 | TCG_RESULT\r | |
1418 | EFIAPI\r | |
1419 | TcgGetNextTcgUid(\r | |
1420 | TCG_PARSE_STRUCT *ParseStruct,\r | |
1421 | TCG_UID *Uid\r | |
1422 | )\r | |
1423 | {\r | |
1424 | TCG_TOKEN Tok;\r | |
1425 | UINT32 Length;\r | |
1426 | const UINT8* ByteSeq;\r | |
1427 | \r | |
1428 | NULL_CHECK(Uid);\r | |
1429 | \r | |
1430 | ERROR_CHECK(TcgGetNextToken(ParseStruct, &Tok));\r | |
1431 | ByteSeq = TcgGetTokenByteSequence(&Tok, &Length);\r | |
1432 | \r | |
1433 | if (Length != sizeof(TCG_UID)) {\r | |
1434 | DEBUG ((DEBUG_INFO, "Token Length %u != TCG_UID Size %u\n", Length, (UINT32)sizeof(TCG_UID)));\r | |
1435 | return TcgResultFailure;\r | |
1436 | }\r | |
1437 | \r | |
a8bcbf9c HW |
1438 | ASSERT (ByteSeq != NULL);\r |
1439 | \r | |
085dcf01 ED |
1440 | CopyMem(Uid, ByteSeq, sizeof(TCG_UID));\r |
1441 | \r | |
1442 | return TcgResultSuccess;\r | |
1443 | }\r | |
1444 | \r | |
1445 | /**\r | |
1446 | Get next byte sequence.\r | |
1447 | \r | |
1448 | @param ParseStruct Input parse structure.\r | |
1449 | @param Data return the data.\r | |
1450 | @param Length return the length.\r | |
1451 | \r | |
1452 | @retval return the action result.\r | |
1453 | \r | |
1454 | **/\r | |
1455 | TCG_RESULT\r | |
1456 | EFIAPI\r | |
1457 | TcgGetNextByteSequence(\r | |
1458 | TCG_PARSE_STRUCT *ParseStruct,\r | |
1459 | const VOID **Data,\r | |
1460 | UINT32 *Length\r | |
1461 | )\r | |
1462 | {\r | |
1463 | TCG_TOKEN Tok;\r | |
1464 | const UINT8* Bs;\r | |
1465 | \r | |
1466 | ERROR_CHECK(TcgGetNextToken(ParseStruct, &Tok));\r | |
1467 | Bs = TcgGetTokenByteSequence(&Tok, Length);\r | |
1468 | \r | |
1469 | if (Bs == NULL) {\r | |
1470 | return TcgResultFailure;\r | |
1471 | }\r | |
1472 | *Data = Bs;\r | |
1473 | return TcgResultSuccess;\r | |
1474 | }\r | |
1475 | \r | |
1476 | /**\r | |
1477 | Get next token Type.\r | |
1478 | \r | |
1479 | @param ParseStruct Input parse structure.\r | |
1480 | @param Type Input the type need to check.\r | |
1481 | \r | |
1482 | @retval return the action result.\r | |
1483 | \r | |
1484 | **/\r | |
1485 | TCG_RESULT\r | |
1486 | EFIAPI\r | |
1487 | TcgGetNextTokenType(\r | |
1488 | TCG_PARSE_STRUCT *ParseStruct,\r | |
1489 | TCG_TOKEN_TYPE Type\r | |
1490 | )\r | |
1491 | {\r | |
1492 | TCG_TOKEN Tok;\r | |
1493 | ERROR_CHECK(TcgGetNextToken(ParseStruct, &Tok));\r | |
1494 | if (Tok.Type != Type) {\r | |
1495 | DEBUG ((DEBUG_INFO, "expected Type %u, got Type %u\n", Type, Tok.Type));\r | |
1496 | return TcgResultFailure;\r | |
1497 | }\r | |
1498 | return TcgResultSuccess;\r | |
1499 | }\r | |
1500 | \r | |
1501 | /**\r | |
1502 | Get next start list.\r | |
1503 | \r | |
1504 | @param ParseStruct Input parse structure.\r | |
1505 | \r | |
1506 | @retval return the action result.\r | |
1507 | \r | |
1508 | **/\r | |
1509 | TCG_RESULT\r | |
1510 | EFIAPI\r | |
1511 | TcgGetNextStartList(\r | |
1512 | TCG_PARSE_STRUCT *ParseStruct\r | |
1513 | )\r | |
1514 | {\r | |
1515 | return TcgGetNextTokenType(ParseStruct, TcgTokenTypeStartList);\r | |
1516 | }\r | |
1517 | \r | |
1518 | /**\r | |
1519 | Get next end list.\r | |
1520 | \r | |
1521 | @param ParseStruct Input parse structure.\r | |
1522 | \r | |
1523 | @retval return the action result.\r | |
1524 | \r | |
1525 | **/\r | |
1526 | TCG_RESULT\r | |
1527 | EFIAPI\r | |
1528 | TcgGetNextEndList(\r | |
1529 | TCG_PARSE_STRUCT *ParseStruct\r | |
1530 | )\r | |
1531 | {\r | |
1532 | return TcgGetNextTokenType(ParseStruct, TcgTokenTypeEndList);\r | |
1533 | }\r | |
1534 | \r | |
1535 | /**\r | |
1536 | Get next start name.\r | |
1537 | \r | |
1538 | @param ParseStruct Input parse structure.\r | |
1539 | \r | |
1540 | @retval return the action result.\r | |
1541 | \r | |
1542 | **/\r | |
1543 | TCG_RESULT\r | |
1544 | EFIAPI\r | |
1545 | TcgGetNextStartName(\r | |
1546 | TCG_PARSE_STRUCT *ParseStruct\r | |
1547 | )\r | |
1548 | {\r | |
1549 | return TcgGetNextTokenType(ParseStruct, TcgTokenTypeStartName);\r | |
1550 | }\r | |
1551 | \r | |
1552 | /**\r | |
1553 | Get next end name.\r | |
1554 | \r | |
1555 | @param ParseStruct Input parse structure.\r | |
1556 | \r | |
1557 | @retval return the action result.\r | |
1558 | \r | |
1559 | **/\r | |
1560 | TCG_RESULT\r | |
1561 | EFIAPI\r | |
1562 | TcgGetNextEndName(\r | |
1563 | TCG_PARSE_STRUCT *ParseStruct\r | |
1564 | )\r | |
1565 | {\r | |
1566 | return TcgGetNextTokenType(ParseStruct, TcgTokenTypeEndName);\r | |
1567 | }\r | |
1568 | \r | |
1569 | /**\r | |
1570 | Get next call.\r | |
1571 | \r | |
1572 | @param ParseStruct Input parse structure.\r | |
1573 | \r | |
1574 | @retval return the action result.\r | |
1575 | \r | |
1576 | **/\r | |
1577 | TCG_RESULT\r | |
1578 | EFIAPI\r | |
1579 | TcgGetNextCall(\r | |
1580 | TCG_PARSE_STRUCT *ParseStruct\r | |
1581 | )\r | |
1582 | {\r | |
1583 | return TcgGetNextTokenType(ParseStruct, TcgTokenTypeCall);\r | |
1584 | }\r | |
1585 | \r | |
1586 | /**\r | |
1587 | Get next end data.\r | |
1588 | \r | |
1589 | @param ParseStruct Input parse structure.\r | |
1590 | \r | |
1591 | @retval return the action result.\r | |
1592 | \r | |
1593 | **/\r | |
1594 | TCG_RESULT\r | |
1595 | EFIAPI\r | |
1596 | TcgGetNextEndOfData(\r | |
1597 | TCG_PARSE_STRUCT *ParseStruct\r | |
1598 | )\r | |
1599 | {\r | |
1600 | return TcgGetNextTokenType(ParseStruct, TcgTokenTypeEndOfData);\r | |
1601 | }\r | |
1602 | \r | |
1603 | /**\r | |
1604 | Get next end of session.\r | |
1605 | \r | |
1606 | @param ParseStruct Input parse structure.\r | |
1607 | \r | |
1608 | @retval return the action result.\r | |
1609 | \r | |
1610 | **/\r | |
1611 | TCG_RESULT\r | |
1612 | EFIAPI\r | |
1613 | TcgGetNextEndOfSession(\r | |
1614 | TCG_PARSE_STRUCT *ParseStruct\r | |
1615 | )\r | |
1616 | {\r | |
1617 | return TcgGetNextTokenType(ParseStruct, TcgTokenTypeEndOfSession);\r | |
1618 | }\r | |
1619 | \r | |
1620 | /**\r | |
1621 | Get next start transaction.\r | |
1622 | \r | |
1623 | @param ParseStruct Input parse structure.\r | |
1624 | \r | |
1625 | @retval return the action result.\r | |
1626 | \r | |
1627 | **/\r | |
1628 | TCG_RESULT\r | |
1629 | EFIAPI\r | |
1630 | TcgGetNextStartTransaction(\r | |
1631 | TCG_PARSE_STRUCT *ParseStruct\r | |
1632 | )\r | |
1633 | {\r | |
1634 | return TcgGetNextTokenType(ParseStruct, TcgTokenTypeStartTransaction);\r | |
1635 | }\r | |
1636 | \r | |
1637 | /**\r | |
1638 | Get next end transaction.\r | |
1639 | \r | |
1640 | @param ParseStruct Input parse structure.\r | |
1641 | \r | |
1642 | @retval return the action result.\r | |
1643 | \r | |
1644 | **/\r | |
1645 | TCG_RESULT\r | |
1646 | EFIAPI\r | |
1647 | TcgGetNextEndTransaction(\r | |
1648 | TCG_PARSE_STRUCT *ParseStruct\r | |
1649 | )\r | |
1650 | {\r | |
1651 | return TcgGetNextTokenType(ParseStruct, TcgTokenTypeEndTransaction);\r | |
1652 | }\r |