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Add MEL dump function
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Signed-off-by: Wenxing Hou <[email protected]>
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@Wenxing-hou @jyao1
Wenxing-hou authored and jyao1 committed Jul 1, 2024
1 parent a054595 commit c3a51fb
Showing 1 changed file with 113 additions and 0 deletions.
113 changes: 113 additions & 0 deletions spdm_dump/spdm/spdm_dump_spdm.c
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,10 @@ size_t m_local_used_cert_chain_buffer_size;
void *m_peer_cert_chain_buffer;
size_t m_peer_cert_chain_buffer_size;

void *m_spdm_mel_buffer;
size_t m_spdm_mel_buffer_size;
size_t m_cached_spdm_mel_buffer_offset;

uint32_t m_spdm_requester_capabilities_flags;
uint32_t m_spdm_responder_capabilities_flags;
uint8_t m_spdm_measurement_spec;
Expand Down Expand Up @@ -1847,6 +1851,101 @@ void dump_spdm_measurements(const void *buffer, size_t buffer_size)
printf("\n");
}

void dump_spdm_get_mel(const void *buffer, size_t buffer_size)
{
const spdm_get_measurement_extension_log_request_t *spdm_request;
size_t message_size;

printf("SPDM_GET_MEASUREMENT_EXTENSION_LOG ");

message_size = sizeof(spdm_get_measurement_extension_log_request_t);
if (buffer_size < message_size) {
printf("\n");
return;
}

spdm_request = buffer;

if (!m_param_quite_mode) {
printf(", Offset=0x%08x, Length=0x%08x) ",
spdm_request->offset, spdm_request->length);
}

m_cached_spdm_mel_buffer_offset = spdm_request->offset;

printf("\n");
}

void dump_spdm_mel(const void *buffer, size_t buffer_size)
{
const spdm_measurement_extension_log_response_t *spdm_response;
size_t message_size;
spdm_measurement_extension_log_dmtf_t *spdm_mel;
spdm_mel_entry_dmtf_t *mel_entry;
uint32_t mel_index;
uint8_t *mel_entry_value;

printf("SPDM_MEASUREMENT_EXTENSION_LOG ");

message_size = sizeof(spdm_measurement_extension_log_response_t);
if (buffer_size < message_size) {
printf("\n");
return;
}

spdm_response = buffer;
message_size += spdm_response->portion_length;
if (buffer_size < message_size) {
printf("\n");
return;
}

if (!m_param_quite_mode) {
printf(", PortLen=0x%08x, RemLen=0x%08x) ",
spdm_response->portion_length,
spdm_response->remainder_length);
}

if (m_cached_spdm_mel_buffer_offset + spdm_response->portion_length >
LIBSPDM_MAX_MEASUREMENT_EXTENSION_LOG_SIZE) {
printf(
"SPDM MEL is too larger. Please increase LIBSPDM_MAX_MEASUREMENT_EXTENSION_LOG_SIZE and rebuild.\n");
exit(0);
}
memcpy((uint8_t *)m_spdm_mel_buffer +
m_cached_spdm_mel_buffer_offset,
(spdm_response + 1), spdm_response->portion_length);
m_spdm_mel_buffer_size = m_cached_spdm_mel_buffer_offset +
spdm_response->portion_length;
spdm_mel = m_spdm_mel_buffer;

if (!m_param_quite_mode) {
if (m_param_all_mode) {
if (m_spdm_mel_buffer_size >= spdm_mel->mel_entries_len + sizeof(spdm_measurement_extension_log_dmtf_t)) {
printf("\n SpdmMelNumber(0x%08x)",
spdm_mel->number_of_entries);
printf("\n SpdmMelTotalLen(0x%08x)",
spdm_mel->mel_entries_len);

mel_entry = (spdm_mel_entry_dmtf_t *)(spdm_mel + 1);
for (mel_index = 0; mel_index < spdm_mel->number_of_entries; mel_index++) {
printf("\n The %d MEL entry is:", mel_index);
printf("\n The MEL entry MELIndex is: 0x%08x", mel_entry->mel_index);
printf("\n The MEL entry MeasIndex is:0x%08x", mel_entry->meas_index);
printf("\n The MEL entry value is: ");
mel_entry_value = (uint8_t *)(mel_entry + 1);
dump_data(mel_entry_value, mel_entry->measurement_block_dmtf_header.dmtf_spec_measurement_value_size);
mel_entry = (spdm_mel_entry_dmtf_t *)((uint8_t *)(mel_entry + 1) +
mel_entry->measurement_block_dmtf_header.dmtf_spec_measurement_value_size);
}

}
}
}

printf("\n");
}

void dump_spdm_respond_if_ready(const void *buffer, size_t buffer_size)
{
const spdm_response_if_ready_request_t *spdm_request;
Expand Down Expand Up @@ -3480,6 +3579,7 @@ dispatch_table_entry_t m_spdm_dispatch[] = {
dump_spdm_challenge_auth },
{ SPDM_VERSION, "SPDM_VERSION", dump_spdm_version },
{ SPDM_MEASUREMENTS, "SPDM_MEASUREMENTS", dump_spdm_measurements },
{ SPDM_MEASUREMENT_EXTENSION_LOG, "SPDM_MEASUREMENT_EXTENSION_LOG", dump_spdm_mel },
{ SPDM_CAPABILITIES, "SPDM_CAPABILITIES", dump_spdm_capabilities },
{ SPDM_ALGORITHMS, "SPDM_ALGORITHMS", dump_spdm_algorithms },
{ SPDM_VENDOR_DEFINED_RESPONSE, "SPDM_VENDOR_DEFINED_RESPONSE",
Expand Down Expand Up @@ -3517,6 +3617,8 @@ dispatch_table_entry_t m_spdm_dispatch[] = {
{ SPDM_GET_VERSION, "SPDM_GET_VERSION", dump_spdm_get_version },
{ SPDM_GET_MEASUREMENTS, "SPDM_GET_MEASUREMENTS",
dump_spdm_get_measurements },
{ SPDM_GET_MEASUREMENT_EXTENSION_LOG, "SPDM_GET_MEASUREMENT_EXTENSION_LOG",
dump_spdm_get_mel },
{ SPDM_GET_CAPABILITIES, "SPDM_GET_CAPABILITIES",
dump_spdm_get_capabilities },
{ SPDM_NEGOTIATE_ALGORITHMS, "SPDM_NEGOTIATE_ALGORITHMS",
Expand Down Expand Up @@ -3616,6 +3718,12 @@ bool init_spdm_dump(void)
goto error;
}

m_spdm_mel_buffer = (void *)malloc(LIBSPDM_MAX_MEASUREMENT_EXTENSION_LOG_SIZE);
if (m_spdm_mel_buffer == NULL) {
printf("!!!memory out of resources!!!\n");
goto error;
}

m_spdm_context = (void *)malloc(libspdm_get_context_size());
if (m_spdm_context == NULL) {
printf("!!!memory out of resources!!!\n");
Expand Down Expand Up @@ -3678,6 +3786,10 @@ bool init_spdm_dump(void)
free(m_peer_cert_chain_buffer);
m_peer_cert_chain_buffer = NULL;
}
if (m_spdm_mel_buffer != NULL) {
free(m_spdm_mel_buffer);
m_spdm_mel_buffer = NULL;
}
if (m_spdm_context != NULL) {
free(m_spdm_context);
m_spdm_context = NULL;
Expand All @@ -3692,5 +3804,6 @@ void deinit_spdm_dump(void)
free(m_spdm_cert_chain_buffer);
free(m_local_used_cert_chain_buffer);
free(m_peer_cert_chain_buffer);
free(m_spdm_mel_buffer);
free(m_spdm_context);
}

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