Line data Source code
1 : /**
2 : * Copyright Notice:
3 : * Copyright 2021-2026 DMTF. All rights reserved.
4 : * License: BSD 3-Clause License. For full text see link: https://github.com/DMTF/libspdm/blob/main/LICENSE.md
5 : **/
6 :
7 : #include "internal/libspdm_responder_lib.h"
8 :
9 : #if LIBSPDM_ENABLE_CAPABILITY_MEAS_CAP
10 :
11 0 : libspdm_return_t libspdm_register_meas_log_reset_callback(
12 : void *spdm_context, libspdm_meas_log_reset_callback_func spdm_meas_log_reset_callback)
13 : {
14 0 : libspdm_context_t *context = (libspdm_context_t *)spdm_context;
15 0 : context->spdm_meas_log_reset_callback = spdm_meas_log_reset_callback;
16 0 : return LIBSPDM_STATUS_SUCCESS;
17 : }
18 :
19 16 : bool libspdm_generate_measurement_signature(libspdm_context_t *spdm_context,
20 : libspdm_session_info_t *session_info,
21 : uint8_t slot_id,
22 : uint8_t *signature)
23 : {
24 : size_t signature_size;
25 : bool result;
26 : #if LIBSPDM_RECORD_TRANSCRIPT_DATA_SUPPORT
27 : libspdm_l1l2_managed_buffer_t l1l2;
28 : uint8_t *l1l2_buffer;
29 : size_t l1l2_buffer_size;
30 : #else
31 : uint8_t l1l2_hash[LIBSPDM_MAX_HASH_SIZE];
32 : size_t l1l2_hash_size;
33 : #endif
34 :
35 : #if LIBSPDM_RECORD_TRANSCRIPT_DATA_SUPPORT
36 : result = libspdm_calculate_l1l2(spdm_context, session_info, &l1l2);
37 : #else
38 16 : l1l2_hash_size = sizeof(l1l2_hash);
39 16 : result = libspdm_calculate_l1l2_hash(spdm_context, session_info, &l1l2_hash_size, l1l2_hash);
40 : #endif
41 16 : libspdm_reset_message_m(spdm_context, session_info);
42 16 : if (!result) {
43 0 : return false;
44 : }
45 :
46 16 : if (spdm_context->connection_info.algorithm.pqc_asym_algo != 0) {
47 0 : signature_size = libspdm_get_pqc_asym_signature_size(
48 : spdm_context->connection_info.algorithm.pqc_asym_algo);
49 : } else {
50 16 : signature_size = libspdm_get_asym_signature_size(
51 : spdm_context->connection_info.algorithm.base_asym_algo);
52 : }
53 : #if LIBSPDM_RECORD_TRANSCRIPT_DATA_SUPPORT
54 : l1l2_buffer = libspdm_get_managed_buffer(&l1l2);
55 : l1l2_buffer_size = libspdm_get_managed_buffer_size(&l1l2);
56 :
57 : result = libspdm_responder_data_sign(
58 : spdm_context,
59 : spdm_context->connection_info.version,
60 : libspdm_slot_id_to_key_pair_id(spdm_context, slot_id, false),
61 : SPDM_MEASUREMENTS,
62 : spdm_context->connection_info.algorithm.base_asym_algo,
63 : spdm_context->connection_info.algorithm.pqc_asym_algo,
64 : spdm_context->connection_info.algorithm.base_hash_algo,
65 : false, l1l2_buffer, l1l2_buffer_size, signature, &signature_size);
66 : #else
67 32 : result = libspdm_responder_data_sign(
68 : spdm_context,
69 16 : spdm_context->connection_info.version,
70 16 : libspdm_slot_id_to_key_pair_id(spdm_context, slot_id, false),
71 : SPDM_MEASUREMENTS,
72 : spdm_context->connection_info.algorithm.base_asym_algo,
73 : spdm_context->connection_info.algorithm.pqc_asym_algo,
74 : spdm_context->connection_info.algorithm.base_hash_algo,
75 : true, l1l2_hash, l1l2_hash_size, signature, &signature_size);
76 : #endif
77 16 : return result;
78 : }
79 137 : libspdm_return_t libspdm_get_response_measurements(libspdm_context_t *spdm_context,
80 : size_t request_size,
81 : const void *request,
82 : size_t *response_size,
83 : void *response)
84 : {
85 : const spdm_get_measurements_request_t *spdm_request;
86 : size_t spdm_request_size;
87 : spdm_measurements_response_t *spdm_response;
88 : size_t spdm_response_size;
89 : libspdm_return_t status;
90 : size_t signature_size;
91 : uint8_t slot_id_param;
92 : uint8_t measurements_index;
93 : uint8_t measurements_count;
94 : uint8_t *measurements;
95 : size_t measurements_size;
96 : uint8_t *opaque_data;
97 : size_t opaque_data_size;
98 : size_t meas_opaque_buffer_size;
99 : bool ret;
100 : libspdm_session_info_t *session_info;
101 : libspdm_session_state_t session_state;
102 : uint8_t content_changed;
103 : uint8_t *fill_response_ptr;
104 : size_t request_context_size;
105 : const void *request_context;
106 : const uint32_t *session_id_ptr;
107 :
108 137 : spdm_request = request;
109 :
110 : /* -=[Check Parameters Phase]=- */
111 137 : LIBSPDM_ASSERT(spdm_request->header.request_response_code == SPDM_GET_MEASUREMENTS);
112 :
113 137 : if (!spdm_context->last_spdm_request_session_id_valid) {
114 136 : session_info = NULL;
115 136 : session_id_ptr = NULL;
116 : } else {
117 1 : session_id_ptr = &spdm_context->last_spdm_request_session_id;
118 1 : session_info = libspdm_get_session_info_via_session_id(
119 : spdm_context,
120 : spdm_context->last_spdm_request_session_id);
121 1 : if (session_info == NULL) {
122 : /* do not reset message_m because it is unclear which context it should be used. */
123 0 : return libspdm_generate_error_response(
124 : spdm_context,
125 : SPDM_ERROR_CODE_UNEXPECTED_REQUEST, 0,
126 : response_size, response);
127 : }
128 1 : session_state = libspdm_secured_message_get_session_state(
129 : session_info->secured_message_context);
130 1 : if (session_state != LIBSPDM_SESSION_STATE_ESTABLISHED) {
131 0 : libspdm_reset_message_m(spdm_context, session_info);
132 0 : return libspdm_generate_error_response(
133 : spdm_context,
134 : SPDM_ERROR_CODE_UNEXPECTED_REQUEST, 0,
135 : response_size, response);
136 : }
137 : }
138 :
139 137 : if (spdm_request->header.spdm_version != libspdm_get_connection_version(spdm_context)) {
140 0 : libspdm_reset_message_m(spdm_context, session_info);
141 0 : return libspdm_generate_error_response(spdm_context,
142 : SPDM_ERROR_CODE_VERSION_MISMATCH, 0,
143 : response_size, response);
144 : }
145 137 : if (spdm_context->response_state != LIBSPDM_RESPONSE_STATE_NORMAL) {
146 : #if LIBSPDM_RESPOND_IF_READY_SUPPORT
147 3 : if (spdm_context->response_state != LIBSPDM_RESPONSE_STATE_NOT_READY) {
148 : #endif
149 2 : libspdm_reset_message_m(spdm_context, session_info);
150 : #if LIBSPDM_RESPOND_IF_READY_SUPPORT
151 : }
152 : #endif
153 3 : return libspdm_responder_handle_response_state(
154 : spdm_context,
155 3 : spdm_request->header.request_response_code,
156 : response_size, response);
157 : }
158 : /* check local context here, because meas_cap is reserved for requester.*/
159 134 : if (!libspdm_is_capabilities_flag_supported(
160 : spdm_context, false, 0,
161 : SPDM_GET_CAPABILITIES_RESPONSE_FLAGS_MEAS_CAP)) {
162 1 : libspdm_reset_message_m(spdm_context, session_info);
163 1 : return libspdm_generate_error_response(
164 : spdm_context, SPDM_ERROR_CODE_UNSUPPORTED_REQUEST,
165 : SPDM_GET_MEASUREMENTS, response_size, response);
166 : }
167 133 : if ((spdm_context->connection_info.algorithm.measurement_spec == 0) ||
168 133 : (spdm_context->connection_info.algorithm.measurement_hash_algo == 0) ) {
169 0 : libspdm_reset_message_m(spdm_context, session_info);
170 0 : return libspdm_generate_error_response(
171 : spdm_context, SPDM_ERROR_CODE_UNEXPECTED_REQUEST,
172 : 0, response_size, response);
173 : }
174 133 : if (spdm_context->connection_info.connection_state <
175 : LIBSPDM_CONNECTION_STATE_NEGOTIATED) {
176 1 : libspdm_reset_message_m(spdm_context, session_info);
177 1 : return libspdm_generate_error_response(
178 : spdm_context,
179 : SPDM_ERROR_CODE_UNEXPECTED_REQUEST, 0,
180 : response_size, response);
181 : }
182 :
183 132 : if ((spdm_request->header.param1 &
184 : SPDM_GET_MEASUREMENTS_REQUEST_ATTRIBUTES_GENERATE_SIGNATURE) != 0) {
185 24 : if (spdm_request->header.spdm_version >= SPDM_MESSAGE_VERSION_11) {
186 13 : if (request_size < sizeof(spdm_get_measurements_request_t)) {
187 4 : libspdm_reset_message_m(spdm_context, session_info);
188 4 : return libspdm_generate_error_response(
189 : spdm_context,
190 : SPDM_ERROR_CODE_INVALID_REQUEST, 0,
191 : response_size, response);
192 : }
193 9 : spdm_request_size = sizeof(spdm_get_measurements_request_t);
194 : } else {
195 11 : if (request_size <
196 : sizeof(spdm_get_measurements_request_t) -
197 : sizeof(spdm_request->slot_id_param)) {
198 1 : libspdm_reset_message_m(spdm_context, session_info);
199 1 : return libspdm_generate_error_response(
200 : spdm_context,
201 : SPDM_ERROR_CODE_INVALID_REQUEST, 0,
202 : response_size, response);
203 : }
204 10 : spdm_request_size = sizeof(spdm_get_measurements_request_t) -
205 : sizeof(spdm_request->slot_id_param);
206 : }
207 : } else {
208 108 : if (request_size < sizeof(spdm_message_header_t)) {
209 0 : libspdm_reset_message_m(spdm_context, session_info);
210 0 : return libspdm_generate_error_response(
211 : spdm_context, SPDM_ERROR_CODE_INVALID_REQUEST,
212 : 0, response_size, response);
213 : }
214 108 : spdm_request_size = sizeof(spdm_message_header_t);
215 : }
216 127 : if (spdm_request->header.spdm_version >= SPDM_MESSAGE_VERSION_13) {
217 2 : if (request_size < spdm_request_size + SPDM_REQ_CONTEXT_SIZE) {
218 0 : libspdm_reset_message_m(spdm_context, session_info);
219 0 : return libspdm_generate_error_response(
220 : spdm_context, SPDM_ERROR_CODE_INVALID_REQUEST,
221 : 0, response_size, response);
222 : }
223 2 : spdm_request_size += SPDM_REQ_CONTEXT_SIZE;
224 : }
225 :
226 127 : if ((spdm_request->header.param1 &
227 : SPDM_GET_MEASUREMENTS_REQUEST_ATTRIBUTES_GENERATE_SIGNATURE) != 0) {
228 19 : if (!libspdm_is_capabilities_flag_supported(
229 : spdm_context, false, 0,
230 : SPDM_GET_CAPABILITIES_RESPONSE_FLAGS_MEAS_CAP_SIG)) {
231 1 : libspdm_reset_message_m(spdm_context, session_info);
232 1 : return libspdm_generate_error_response(
233 : spdm_context, SPDM_ERROR_CODE_INVALID_REQUEST,
234 : 0, response_size, response);
235 : }
236 : }
237 :
238 126 : if ((spdm_request->header.param1 &
239 : SPDM_GET_MEASUREMENTS_REQUEST_ATTRIBUTES_GENERATE_SIGNATURE) == 0) {
240 108 : signature_size = 0;
241 : } else {
242 18 : if (spdm_context->connection_info.algorithm.pqc_asym_algo != 0) {
243 0 : signature_size = libspdm_get_pqc_asym_signature_size(
244 : spdm_context->connection_info.algorithm.pqc_asym_algo);
245 : } else {
246 18 : signature_size = libspdm_get_asym_signature_size(
247 : spdm_context->connection_info.algorithm.base_asym_algo);
248 : }
249 : }
250 :
251 126 : if (spdm_request->header.spdm_version >= SPDM_MESSAGE_VERSION_13) {
252 2 : request_context_size = SPDM_REQ_CONTEXT_SIZE;
253 :
254 2 : if ((spdm_request->header.param1 &
255 : SPDM_GET_MEASUREMENTS_REQUEST_ATTRIBUTES_GENERATE_SIGNATURE) == 0) {
256 1 : request_context = (const uint8_t *)spdm_request + sizeof(spdm_message_header_t);
257 : } else {
258 1 : request_context = spdm_request + 1;
259 : }
260 : } else {
261 124 : request_context_size = 0;
262 124 : request_context = NULL;
263 : }
264 :
265 : /* response_size should be large enough to hold a MEASUREMENTS response without
266 : * measurements or opaque data. */
267 126 : LIBSPDM_ASSERT(*response_size >= (sizeof(spdm_measurements_response_t) +
268 : SPDM_NONCE_SIZE + sizeof(uint16_t) + signature_size));
269 :
270 126 : meas_opaque_buffer_size = *response_size - (sizeof(spdm_measurements_response_t) +
271 : SPDM_NONCE_SIZE + sizeof(uint16_t) +
272 : signature_size);
273 :
274 126 : libspdm_zero_mem(response, *response_size);
275 :
276 126 : measurements_index = spdm_request->header.param2;
277 126 : measurements_count = 0;
278 126 : measurements = (uint8_t*)response + sizeof(spdm_measurements_response_t);
279 126 : measurements_size = meas_opaque_buffer_size;
280 :
281 244 : status = libspdm_measurement_collection(
282 : spdm_context,
283 : session_id_ptr,
284 126 : spdm_context->connection_info.version,
285 126 : spdm_context->connection_info.algorithm.measurement_spec,
286 : spdm_context->connection_info.algorithm.measurement_hash_algo,
287 : measurements_index,
288 126 : spdm_request->header.param1,
289 126 : ((spdm_request->header.param1 &
290 : SPDM_GET_MEASUREMENTS_REQUEST_ATTRIBUTES_GENERATE_SIGNATURE) != 0) ?
291 : spdm_request->nonce : NULL,
292 126 : ((spdm_request->header.param1 &
293 18 : SPDM_GET_MEASUREMENTS_REQUEST_ATTRIBUTES_GENERATE_SIGNATURE) != 0 &&
294 18 : spdm_request->header.spdm_version >= SPDM_MESSAGE_VERSION_11) ?
295 8 : (spdm_request->slot_id_param & SPDM_GET_MEASUREMENTS_REQUEST_SLOT_ID_MASK) : 0,
296 : request_context_size,
297 : request_context,
298 : &content_changed,
299 : &measurements_count,
300 : measurements,
301 : &measurements_size);
302 :
303 126 : if (LIBSPDM_STATUS_IS_ERROR(status)) {
304 1 : if (status == LIBSPDM_STATUS_MEAS_INVALID_INDEX) {
305 1 : libspdm_reset_message_m(spdm_context, session_info);
306 1 : return libspdm_generate_error_response(
307 : spdm_context, SPDM_ERROR_CODE_INVALID_REQUEST,
308 : 0, response_size, response);
309 : } else {
310 0 : libspdm_reset_message_m(spdm_context, session_info);
311 0 : return libspdm_generate_error_response(
312 : spdm_context, SPDM_ERROR_CODE_UNSPECIFIED,
313 : 0, response_size, response);
314 : }
315 : }
316 :
317 125 : LIBSPDM_ASSERT(measurements_count != 0);
318 125 : LIBSPDM_ASSERT((measurements_index == 0) || (measurements_size > 0));
319 125 : LIBSPDM_ASSERT(measurements_size <= SPDM_MAX_MEASUREMENT_RECORD_LENGTH);
320 125 : LIBSPDM_ASSERT(measurements_size <= meas_opaque_buffer_size);
321 :
322 125 : if (measurements_index == 0) {
323 11 : measurements_size = 0;
324 : }
325 :
326 125 : opaque_data =
327 : (uint8_t*)response + sizeof(spdm_measurements_response_t) + measurements_size +
328 125 : SPDM_NONCE_SIZE + sizeof(uint16_t);
329 :
330 125 : if ((libspdm_get_connection_version(spdm_context) >= SPDM_MESSAGE_VERSION_12) &&
331 8 : ((spdm_context->connection_info.algorithm.other_params_support &
332 : SPDM_ALGORITHMS_OPAQUE_DATA_FORMAT_MASK) == SPDM_ALGORITHMS_OPAQUE_DATA_FORMAT_NONE)) {
333 4 : opaque_data_size = 0;
334 : } else {
335 121 : opaque_data_size = meas_opaque_buffer_size - measurements_size;
336 :
337 121 : ret = libspdm_measurement_opaque_data(
338 : spdm_context,
339 : session_id_ptr,
340 121 : spdm_context->connection_info.version,
341 121 : spdm_context->connection_info.algorithm.measurement_spec,
342 : spdm_context->connection_info.algorithm.measurement_hash_algo,
343 : measurements_index,
344 121 : spdm_request->header.param1,
345 : request_context_size,
346 : request_context,
347 : opaque_data,
348 : &opaque_data_size);
349 :
350 121 : if (!ret) {
351 0 : libspdm_reset_message_m(spdm_context, session_info);
352 0 : return libspdm_generate_error_response(
353 : spdm_context, SPDM_ERROR_CODE_UNSPECIFIED,
354 : 0, response_size, response);
355 : }
356 : }
357 :
358 125 : LIBSPDM_ASSERT(opaque_data_size <= (meas_opaque_buffer_size - measurements_size));
359 :
360 125 : spdm_response_size =
361 : sizeof(spdm_measurements_response_t) + measurements_size + SPDM_NONCE_SIZE +
362 125 : sizeof(uint16_t) + opaque_data_size + signature_size;
363 125 : if (spdm_request->header.spdm_version >= SPDM_MESSAGE_VERSION_13) {
364 2 : spdm_response_size += SPDM_REQ_CONTEXT_SIZE;
365 : }
366 :
367 125 : LIBSPDM_ASSERT(*response_size >= spdm_response_size);
368 :
369 125 : *response_size = spdm_response_size;
370 125 : spdm_response = response;
371 :
372 125 : switch (spdm_request->header.param2) {
373 11 : case SPDM_GET_MEASUREMENTS_REQUEST_MEASUREMENT_OPERATION_TOTAL_NUMBER_OF_MEASUREMENTS:
374 11 : spdm_response->header.spdm_version = spdm_request->header.spdm_version;
375 11 : spdm_response->header.request_response_code = SPDM_MEASUREMENTS;
376 11 : spdm_response->header.param1 = measurements_count;
377 11 : spdm_response->header.param2 = 0;
378 11 : spdm_response->number_of_blocks = 0;
379 11 : libspdm_write_uint24(spdm_response->measurement_record_length, 0);
380 11 : break;
381 5 : case SPDM_GET_MEASUREMENTS_REQUEST_MEASUREMENT_OPERATION_ALL_MEASUREMENTS:
382 45 : LIBSPDM_DEBUG_CODE(
383 : uint8_t index;
384 : size_t debug_measurements_record_size;
385 : size_t debug_measurements_block_size;
386 : spdm_measurement_block_dmtf_t *debug_measurement_block;
387 :
388 : debug_measurements_record_size = 0;
389 : debug_measurement_block = (void *)measurements;
390 : for (index = 0; index < measurements_count; index++) {
391 : debug_measurements_block_size =
392 : sizeof(spdm_measurement_block_dmtf_t) +
393 : debug_measurement_block->measurement_block_dmtf_header
394 : .dmtf_spec_measurement_value_size;
395 : debug_measurements_record_size += debug_measurements_block_size;
396 : debug_measurement_block =
397 : (void *)((size_t)debug_measurement_block + debug_measurements_block_size);
398 : }
399 : LIBSPDM_ASSERT(debug_measurements_record_size == measurements_size);
400 : );
401 :
402 5 : spdm_response->header.spdm_version = spdm_request->header.spdm_version;
403 5 : spdm_response->header.request_response_code = SPDM_MEASUREMENTS;
404 5 : spdm_response->header.param1 = 0;
405 5 : spdm_response->header.param2 = 0;
406 5 : spdm_response->number_of_blocks = measurements_count;
407 5 : libspdm_write_uint24(spdm_response->measurement_record_length, (uint32_t)measurements_size);
408 5 : break;
409 109 : default:
410 109 : LIBSPDM_ASSERT(measurements_count == 1);
411 :
412 109 : spdm_response->header.spdm_version = spdm_request->header.spdm_version;
413 109 : spdm_response->header.request_response_code = SPDM_MEASUREMENTS;
414 109 : spdm_response->header.param1 = 0;
415 109 : spdm_response->header.param2 = 0;
416 109 : spdm_response->number_of_blocks = 1;
417 109 : libspdm_write_uint24(spdm_response->measurement_record_length, (uint32_t)measurements_size);
418 109 : break;
419 : }
420 :
421 125 : if ((spdm_request->header.param1 &
422 : SPDM_GET_MEASUREMENTS_REQUEST_ATTRIBUTES_GENERATE_SIGNATURE) != 0) {
423 18 : if (spdm_response->header.spdm_version >= SPDM_MESSAGE_VERSION_11) {
424 8 : slot_id_param = spdm_request->slot_id_param &
425 : SPDM_GET_MEASUREMENTS_REQUEST_SLOT_ID_MASK;
426 8 : if ((slot_id_param != 0xF) && (slot_id_param >= SPDM_MAX_SLOT_COUNT)) {
427 1 : libspdm_reset_message_m(spdm_context, session_info);
428 1 : return libspdm_generate_error_response(
429 : spdm_context,
430 : SPDM_ERROR_CODE_INVALID_REQUEST, 0,
431 : response_size, response);
432 : }
433 7 : if (slot_id_param != 0xF) {
434 6 : if (spdm_context->local_context
435 6 : .local_cert_chain_provision[slot_id_param] == NULL) {
436 0 : libspdm_reset_message_m(spdm_context, session_info);
437 0 : return libspdm_generate_error_response(
438 : spdm_context, SPDM_ERROR_CODE_INVALID_REQUEST,
439 : 0, response_size, response);
440 : }
441 : } else {
442 1 : if (spdm_context->local_context
443 1 : .local_public_key_provision == NULL) {
444 0 : libspdm_reset_message_m(spdm_context, session_info);
445 0 : return libspdm_generate_error_response(
446 : spdm_context, SPDM_ERROR_CODE_INVALID_REQUEST,
447 : 0, response_size, response);
448 : }
449 : }
450 :
451 7 : if ((spdm_request->header.spdm_version >= SPDM_MESSAGE_VERSION_13) &&
452 1 : spdm_context->connection_info.multi_key_conn_rsp &&
453 : (slot_id_param != 0xF)) {
454 1 : if ((spdm_context->local_context.local_key_usage_bit_mask[slot_id_param] &
455 : SPDM_KEY_USAGE_BIT_MASK_MEASUREMENT_USE) == 0) {
456 1 : return libspdm_generate_error_response(
457 : spdm_context, SPDM_ERROR_CODE_INVALID_REQUEST,
458 : 0, response_size, response);
459 : }
460 : }
461 :
462 6 : spdm_response->header.param2 = slot_id_param;
463 6 : if (spdm_response->header.spdm_version >= SPDM_MESSAGE_VERSION_12) {
464 5 : spdm_response->header.param2 = slot_id_param |
465 5 : (content_changed &
466 : SPDM_MEASUREMENTS_RESPONSE_CONTENT_CHANGE_MASK);
467 : }
468 : }
469 : }
470 :
471 123 : fill_response_ptr =
472 123 : (uint8_t*)response + sizeof(spdm_measurements_response_t) + measurements_size;
473 :
474 123 : if (!libspdm_get_random_number(SPDM_NONCE_SIZE, fill_response_ptr)) {
475 0 : libspdm_reset_message_m(spdm_context, session_info);
476 0 : return libspdm_generate_error_response(spdm_context,
477 : SPDM_ERROR_CODE_UNSPECIFIED, 0,
478 : response_size, response);
479 : }
480 123 : fill_response_ptr += SPDM_NONCE_SIZE;
481 :
482 123 : libspdm_write_uint16(fill_response_ptr, (uint16_t)opaque_data_size);
483 123 : fill_response_ptr += sizeof(uint16_t);
484 :
485 123 : fill_response_ptr += opaque_data_size;
486 :
487 123 : if (spdm_request->header.spdm_version >= SPDM_MESSAGE_VERSION_13) {
488 1 : libspdm_copy_mem(fill_response_ptr, SPDM_REQ_CONTEXT_SIZE,
489 1 : (const uint8_t *)spdm_request + spdm_request_size - SPDM_REQ_CONTEXT_SIZE,
490 : SPDM_REQ_CONTEXT_SIZE);
491 1 : fill_response_ptr += SPDM_REQ_CONTEXT_SIZE;
492 : }
493 :
494 123 : libspdm_reset_message_buffer_via_request_code(spdm_context, session_info,
495 123 : spdm_request->header.request_response_code);
496 :
497 123 : status = libspdm_append_message_m(spdm_context, session_info, spdm_request, spdm_request_size);
498 123 : if (LIBSPDM_STATUS_IS_ERROR(status)) {
499 0 : libspdm_reset_message_m(spdm_context, session_info);
500 0 : return libspdm_generate_error_response(spdm_context,
501 : SPDM_ERROR_CODE_UNSPECIFIED, 0,
502 : response_size, response);
503 : }
504 :
505 123 : status = libspdm_append_message_m(spdm_context, session_info,
506 123 : spdm_response, *response_size - signature_size);
507 123 : if (LIBSPDM_STATUS_IS_ERROR(status)) {
508 0 : libspdm_reset_message_m(spdm_context, session_info);
509 0 : return libspdm_generate_error_response(spdm_context,
510 : SPDM_ERROR_CODE_UNSPECIFIED, 0,
511 : response_size, response);
512 : }
513 :
514 123 : if ((spdm_request->header.param1 &
515 : SPDM_GET_MEASUREMENTS_REQUEST_ATTRIBUTES_GENERATE_SIGNATURE) != 0) {
516 :
517 16 : ret = libspdm_generate_measurement_signature(
518 : spdm_context, session_info, slot_id_param, fill_response_ptr);
519 :
520 16 : if (!ret) {
521 0 : libspdm_reset_message_m(spdm_context, session_info);
522 0 : return libspdm_generate_error_response(
523 : spdm_context,
524 : SPDM_ERROR_CODE_UNSPECIFIED,
525 : 0,
526 : response_size, response);
527 : }
528 : /*reset*/
529 16 : libspdm_reset_message_m(spdm_context, session_info);
530 : }
531 :
532 123 : return LIBSPDM_STATUS_SUCCESS;
533 : }
534 :
535 : #endif /* LIBSPDM_ENABLE_CAPABILITY_MEAS_CAP*/
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