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 :
281 126 : 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 : request_context_size,
290 : request_context,
291 : &content_changed,
292 : &measurements_count,
293 : measurements,
294 : &measurements_size);
295 :
296 126 : if (LIBSPDM_STATUS_IS_ERROR(status)) {
297 1 : if (status == LIBSPDM_STATUS_MEAS_INVALID_INDEX) {
298 1 : libspdm_reset_message_m(spdm_context, session_info);
299 1 : return libspdm_generate_error_response(
300 : spdm_context, SPDM_ERROR_CODE_INVALID_REQUEST,
301 : 0, response_size, response);
302 : } else {
303 0 : libspdm_reset_message_m(spdm_context, session_info);
304 0 : return libspdm_generate_error_response(
305 : spdm_context, SPDM_ERROR_CODE_UNSPECIFIED,
306 : 0, response_size, response);
307 : }
308 : }
309 :
310 125 : LIBSPDM_ASSERT(measurements_count != 0);
311 125 : LIBSPDM_ASSERT((measurements_index == 0) || (measurements_size > 0));
312 125 : LIBSPDM_ASSERT(measurements_size <= SPDM_MAX_MEASUREMENT_RECORD_LENGTH);
313 125 : LIBSPDM_ASSERT(measurements_size <= meas_opaque_buffer_size);
314 :
315 125 : if (measurements_index == 0) {
316 11 : measurements_size = 0;
317 : }
318 :
319 125 : opaque_data =
320 : (uint8_t*)response + sizeof(spdm_measurements_response_t) + measurements_size +
321 125 : SPDM_NONCE_SIZE + sizeof(uint16_t);
322 :
323 125 : if ((libspdm_get_connection_version(spdm_context) >= SPDM_MESSAGE_VERSION_12) &&
324 8 : ((spdm_context->connection_info.algorithm.other_params_support &
325 : SPDM_ALGORITHMS_OPAQUE_DATA_FORMAT_MASK) == SPDM_ALGORITHMS_OPAQUE_DATA_FORMAT_NONE)) {
326 4 : opaque_data_size = 0;
327 : } else {
328 121 : opaque_data_size = meas_opaque_buffer_size - measurements_size;
329 :
330 121 : ret = libspdm_measurement_opaque_data(
331 : spdm_context,
332 : session_id_ptr,
333 121 : spdm_context->connection_info.version,
334 121 : spdm_context->connection_info.algorithm.measurement_spec,
335 : spdm_context->connection_info.algorithm.measurement_hash_algo,
336 : measurements_index,
337 121 : spdm_request->header.param1,
338 : request_context_size,
339 : request_context,
340 : opaque_data,
341 : &opaque_data_size);
342 :
343 121 : if (!ret) {
344 0 : libspdm_reset_message_m(spdm_context, session_info);
345 0 : return libspdm_generate_error_response(
346 : spdm_context, SPDM_ERROR_CODE_UNSPECIFIED,
347 : 0, response_size, response);
348 : }
349 : }
350 :
351 125 : LIBSPDM_ASSERT(opaque_data_size <= (meas_opaque_buffer_size - measurements_size));
352 :
353 125 : spdm_response_size =
354 : sizeof(spdm_measurements_response_t) + measurements_size + SPDM_NONCE_SIZE +
355 125 : sizeof(uint16_t) + opaque_data_size + signature_size;
356 125 : if (spdm_request->header.spdm_version >= SPDM_MESSAGE_VERSION_13) {
357 2 : spdm_response_size += SPDM_REQ_CONTEXT_SIZE;
358 : }
359 :
360 125 : LIBSPDM_ASSERT(*response_size >= spdm_response_size);
361 :
362 125 : *response_size = spdm_response_size;
363 125 : spdm_response = response;
364 :
365 125 : switch (spdm_request->header.param2) {
366 11 : case SPDM_GET_MEASUREMENTS_REQUEST_MEASUREMENT_OPERATION_TOTAL_NUMBER_OF_MEASUREMENTS:
367 11 : spdm_response->header.spdm_version = spdm_request->header.spdm_version;
368 11 : spdm_response->header.request_response_code = SPDM_MEASUREMENTS;
369 11 : spdm_response->header.param1 = measurements_count;
370 11 : spdm_response->header.param2 = 0;
371 11 : spdm_response->number_of_blocks = 0;
372 11 : libspdm_write_uint24(spdm_response->measurement_record_length, 0);
373 11 : break;
374 5 : case SPDM_GET_MEASUREMENTS_REQUEST_MEASUREMENT_OPERATION_ALL_MEASUREMENTS:
375 45 : LIBSPDM_DEBUG_CODE(
376 : uint8_t index;
377 : size_t debug_measurements_record_size;
378 : size_t debug_measurements_block_size;
379 : spdm_measurement_block_dmtf_t *debug_measurement_block;
380 :
381 : debug_measurements_record_size = 0;
382 : debug_measurement_block = (void *)measurements;
383 : for (index = 0; index < measurements_count; index++) {
384 : debug_measurements_block_size =
385 : sizeof(spdm_measurement_block_dmtf_t) +
386 : debug_measurement_block->measurement_block_dmtf_header
387 : .dmtf_spec_measurement_value_size;
388 : debug_measurements_record_size += debug_measurements_block_size;
389 : debug_measurement_block =
390 : (void *)((size_t)debug_measurement_block + debug_measurements_block_size);
391 : }
392 : LIBSPDM_ASSERT(debug_measurements_record_size == measurements_size);
393 : );
394 :
395 5 : spdm_response->header.spdm_version = spdm_request->header.spdm_version;
396 5 : spdm_response->header.request_response_code = SPDM_MEASUREMENTS;
397 5 : spdm_response->header.param1 = 0;
398 5 : spdm_response->header.param2 = 0;
399 5 : spdm_response->number_of_blocks = measurements_count;
400 5 : libspdm_write_uint24(spdm_response->measurement_record_length, (uint32_t)measurements_size);
401 5 : break;
402 109 : default:
403 109 : LIBSPDM_ASSERT(measurements_count == 1);
404 :
405 109 : spdm_response->header.spdm_version = spdm_request->header.spdm_version;
406 109 : spdm_response->header.request_response_code = SPDM_MEASUREMENTS;
407 109 : spdm_response->header.param1 = 0;
408 109 : spdm_response->header.param2 = 0;
409 109 : spdm_response->number_of_blocks = 1;
410 109 : libspdm_write_uint24(spdm_response->measurement_record_length, (uint32_t)measurements_size);
411 109 : break;
412 : }
413 :
414 125 : if ((spdm_request->header.param1 &
415 : SPDM_GET_MEASUREMENTS_REQUEST_ATTRIBUTES_GENERATE_SIGNATURE) != 0) {
416 18 : if (spdm_response->header.spdm_version >= SPDM_MESSAGE_VERSION_11) {
417 8 : slot_id_param = spdm_request->slot_id_param &
418 : SPDM_GET_MEASUREMENTS_REQUEST_SLOT_ID_MASK;
419 8 : if ((slot_id_param != 0xF) && (slot_id_param >= SPDM_MAX_SLOT_COUNT)) {
420 1 : libspdm_reset_message_m(spdm_context, session_info);
421 1 : return libspdm_generate_error_response(
422 : spdm_context,
423 : SPDM_ERROR_CODE_INVALID_REQUEST, 0,
424 : response_size, response);
425 : }
426 7 : if (slot_id_param != 0xF) {
427 6 : if (spdm_context->local_context
428 6 : .local_cert_chain_provision[slot_id_param] == NULL) {
429 0 : libspdm_reset_message_m(spdm_context, session_info);
430 0 : return libspdm_generate_error_response(
431 : spdm_context, SPDM_ERROR_CODE_INVALID_REQUEST,
432 : 0, response_size, response);
433 : }
434 : } else {
435 1 : if (spdm_context->local_context
436 1 : .local_public_key_provision == NULL) {
437 0 : libspdm_reset_message_m(spdm_context, session_info);
438 0 : return libspdm_generate_error_response(
439 : spdm_context, SPDM_ERROR_CODE_INVALID_REQUEST,
440 : 0, response_size, response);
441 : }
442 : }
443 :
444 7 : if ((spdm_request->header.spdm_version >= SPDM_MESSAGE_VERSION_13) &&
445 1 : spdm_context->connection_info.multi_key_conn_rsp &&
446 : (slot_id_param != 0xF)) {
447 1 : if ((spdm_context->local_context.local_key_usage_bit_mask[slot_id_param] &
448 : SPDM_KEY_USAGE_BIT_MASK_MEASUREMENT_USE) == 0) {
449 1 : return libspdm_generate_error_response(
450 : spdm_context, SPDM_ERROR_CODE_INVALID_REQUEST,
451 : 0, response_size, response);
452 : }
453 : }
454 :
455 6 : spdm_response->header.param2 = slot_id_param;
456 6 : if (spdm_response->header.spdm_version >= SPDM_MESSAGE_VERSION_12) {
457 5 : spdm_response->header.param2 = slot_id_param |
458 5 : (content_changed &
459 : SPDM_MEASUREMENTS_RESPONSE_CONTENT_CHANGE_MASK);
460 : }
461 : }
462 : }
463 :
464 123 : fill_response_ptr =
465 123 : (uint8_t*)response + sizeof(spdm_measurements_response_t) + measurements_size;
466 :
467 123 : if (!libspdm_get_random_number(SPDM_NONCE_SIZE, fill_response_ptr)) {
468 0 : libspdm_reset_message_m(spdm_context, session_info);
469 0 : return libspdm_generate_error_response(spdm_context,
470 : SPDM_ERROR_CODE_UNSPECIFIED, 0,
471 : response_size, response);
472 : }
473 123 : fill_response_ptr += SPDM_NONCE_SIZE;
474 :
475 123 : libspdm_write_uint16(fill_response_ptr, (uint16_t)opaque_data_size);
476 123 : fill_response_ptr += sizeof(uint16_t);
477 :
478 123 : fill_response_ptr += opaque_data_size;
479 :
480 123 : if (spdm_request->header.spdm_version >= SPDM_MESSAGE_VERSION_13) {
481 1 : libspdm_copy_mem(fill_response_ptr, SPDM_REQ_CONTEXT_SIZE,
482 1 : (const uint8_t *)spdm_request + spdm_request_size - SPDM_REQ_CONTEXT_SIZE,
483 : SPDM_REQ_CONTEXT_SIZE);
484 1 : fill_response_ptr += SPDM_REQ_CONTEXT_SIZE;
485 : }
486 :
487 123 : libspdm_reset_message_buffer_via_request_code(spdm_context, session_info,
488 123 : spdm_request->header.request_response_code);
489 :
490 123 : status = libspdm_append_message_m(spdm_context, session_info, spdm_request, spdm_request_size);
491 123 : if (LIBSPDM_STATUS_IS_ERROR(status)) {
492 0 : libspdm_reset_message_m(spdm_context, session_info);
493 0 : return libspdm_generate_error_response(spdm_context,
494 : SPDM_ERROR_CODE_UNSPECIFIED, 0,
495 : response_size, response);
496 : }
497 :
498 123 : status = libspdm_append_message_m(spdm_context, session_info,
499 123 : spdm_response, *response_size - signature_size);
500 123 : if (LIBSPDM_STATUS_IS_ERROR(status)) {
501 0 : libspdm_reset_message_m(spdm_context, session_info);
502 0 : return libspdm_generate_error_response(spdm_context,
503 : SPDM_ERROR_CODE_UNSPECIFIED, 0,
504 : response_size, response);
505 : }
506 :
507 123 : if ((spdm_request->header.param1 &
508 : SPDM_GET_MEASUREMENTS_REQUEST_ATTRIBUTES_GENERATE_SIGNATURE) != 0) {
509 :
510 16 : ret = libspdm_generate_measurement_signature(
511 : spdm_context, session_info, slot_id_param, fill_response_ptr);
512 :
513 16 : if (!ret) {
514 0 : libspdm_reset_message_m(spdm_context, session_info);
515 0 : return libspdm_generate_error_response(
516 : spdm_context,
517 : SPDM_ERROR_CODE_UNSPECIFIED,
518 : 0,
519 : response_size, response);
520 : }
521 : /*reset*/
522 16 : libspdm_reset_message_m(spdm_context, session_info);
523 : }
524 :
525 123 : return LIBSPDM_STATUS_SUCCESS;
526 : }
527 :
528 : #endif /* LIBSPDM_ENABLE_CAPABILITY_MEAS_CAP*/
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