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Fix fuzzy test case libspdm_test_responder_chunk_send_ack_case1 #2622

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Mar 21, 2024
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Fix fuzzy test case libspdm_test_responder_chunk_send_ack_case1 #2622

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33 changes: 19 additions & 14 deletions unit_test/fuzzing/test_responder/test_spdm_responder_chunk_send_ack/chunk_send_ack.c
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Original file line number Diff line number Diff line change
Expand Up @@ -84,26 +84,30 @@ void libspdm_test_responder_chunk_send_ack_case1(void **State)
chunk_num = 0;
bytes_sent = 0;
bytes_total = spdm_test_context->test_buffer_size;

/* All chunk send message sequences, including chunk_send_header and spdm_chunk. */
request = (uint8_t *)spdm_test_context->test_buffer;

do
{
if (chunk_num == 0) {
/* (uint32_t)LargeMessageSize , This field shall only be present when ChunkSeqNo
* is zero and shall have a non-zero value.
* The bytes_total should not be less than the minimum effective size.*/
if(bytes_total < sizeof(spdm_chunk_send_request_t) + sizeof(uint32_t)) {
break;
}
chunk_send_request = (spdm_chunk_send_request_t *)request;
spdm_message_header_t *test_spdm_message_header_t;

request_size = sizeof(spdm_chunk_send_request_t) + sizeof(uint32_t) +
chunk_send_request->chunk_size;

if (chunk_send_request->chunk_size > bytes_total) {
break;
}
if (chunk_send_request->chunk_size >
(request_size - sizeof(spdm_chunk_send_request_t) - sizeof(uint32_t)) ||
chunk_send_request->chunk_size == 0) {
/* Remaining space should meet the chunk_size. */
if(bytes_total - sizeof(spdm_chunk_send_request_t) - sizeof(uint32_t) <
chunk_send_request->chunk_size) {
break;
}

test_spdm_message_header_t =
(spdm_message_header_t *)(((uint8_t*) (chunk_send_request + 1)) + sizeof(uint32_t));
if (test_spdm_message_header_t->request_response_code == SPDM_RESPOND_IF_READY) {
Expand All @@ -113,17 +117,18 @@ void libspdm_test_responder_chunk_send_ack_case1(void **State)
chunk_send_request->chunk_size + sizeof(spdm_chunk_send_request_t) +
sizeof(uint32_t);
} else {
/* The remaining number of bytes should not be less than the minimum effective size*/
if(bytes_total - bytes_sent < sizeof(spdm_chunk_send_request_t)) {
break;
}
chunk_send_request = (spdm_chunk_send_request_t *)request;
spdm_message_header_t *test_spdm_message_header_t;

request_size = sizeof(spdm_chunk_send_request_t) + chunk_send_request->chunk_size;

if (chunk_send_request->chunk_size > bytes_total) {
break;
}
if (chunk_send_request->chunk_size >
(request_size - sizeof(spdm_chunk_send_request_t) - bytes_sent) ||
chunk_send_request->chunk_size == 0) {
/* Remaining space should meet the chunk_size. */
if(bytes_total - bytes_sent - sizeof(spdm_chunk_send_request_t) <
chunk_send_request->chunk_size) {
break;
}

Expand Down Expand Up @@ -155,7 +160,7 @@ void libspdm_test_responder_chunk_send_ack_case1(void **State)
if (status != LIBSPDM_STATUS_SUCCESS) {
break;
}
} while (bytes_sent < bytes_total);
}while (true);
}

libspdm_test_context_t m_libspdm_responder_chunk_send_ack_test_context = {
Expand Down
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