blob: 2030a6d10e23791a7e53c253c4f4299ebfb75003 [file] [log] [blame]
#include "firmware_update.h"
#include <endian.h>
#include <string.h>
/** @brief Check whether string type value is valid
*
* @return true if string type value is valid, false if not
*/
static bool is_string_type_valid(uint8_t string_type)
{
switch (string_type) {
case PLDM_STR_TYPE_UNKNOWN:
case PLDM_STR_TYPE_ASCII:
case PLDM_STR_TYPE_UTF_8:
case PLDM_STR_TYPE_UTF_16:
case PLDM_STR_TYPE_UTF_16LE:
case PLDM_STR_TYPE_UTF_16BE:
return true;
default:
return false;
}
}
/** @brief Return the length of the descriptor type described in firmware update
* specification
*
* @return length of the descriptor type if descriptor type is valid else
* return 0
*/
static uint16_t get_descriptor_type_length(uint16_t descriptor_type)
{
switch (descriptor_type) {
case PLDM_FWUP_PCI_VENDOR_ID:
return PLDM_FWUP_PCI_VENDOR_ID_LENGTH;
case PLDM_FWUP_IANA_ENTERPRISE_ID:
return PLDM_FWUP_IANA_ENTERPRISE_ID_LENGTH;
case PLDM_FWUP_UUID:
return PLDM_FWUP_UUID_LENGTH;
case PLDM_FWUP_PNP_VENDOR_ID:
return PLDM_FWUP_PNP_VENDOR_ID_LENGTH;
case PLDM_FWUP_ACPI_VENDOR_ID:
return PLDM_FWUP_ACPI_VENDOR_ID_LENGTH;
case PLDM_FWUP_IEEE_ASSIGNED_COMPANY_ID:
return PLDM_FWUP_IEEE_ASSIGNED_COMPANY_ID_LENGTH;
case PLDM_FWUP_SCSI_VENDOR_ID:
return PLDM_FWUP_SCSI_VENDOR_ID_LENGTH;
case PLDM_FWUP_PCI_DEVICE_ID:
return PLDM_FWUP_PCI_DEVICE_ID_LENGTH;
case PLDM_FWUP_PCI_SUBSYSTEM_VENDOR_ID:
return PLDM_FWUP_PCI_SUBSYSTEM_VENDOR_ID_LENGTH;
case PLDM_FWUP_PCI_SUBSYSTEM_ID:
return PLDM_FWUP_PCI_SUBSYSTEM_ID_LENGTH;
case PLDM_FWUP_PCI_REVISION_ID:
return PLDM_FWUP_PCI_REVISION_ID_LENGTH;
case PLDM_FWUP_PNP_PRODUCT_IDENTIFIER:
return PLDM_FWUP_PNP_PRODUCT_IDENTIFIER_LENGTH;
case PLDM_FWUP_ACPI_PRODUCT_IDENTIFIER:
return PLDM_FWUP_ACPI_PRODUCT_IDENTIFIER_LENGTH;
case PLDM_FWUP_ASCII_MODEL_NUMBER_LONG_STRING:
return PLDM_FWUP_ASCII_MODEL_NUMBER_LONG_STRING_LENGTH;
case PLDM_FWUP_ASCII_MODEL_NUMBER_SHORT_STRING:
return PLDM_FWUP_ASCII_MODEL_NUMBER_SHORT_STRING_LENGTH;
case PLDM_FWUP_SCSI_PRODUCT_ID:
return PLDM_FWUP_SCSI_PRODUCT_ID_LENGTH;
case PLDM_FWUP_UBM_CONTROLLER_DEVICE_CODE:
return PLDM_FWUP_UBM_CONTROLLER_DEVICE_CODE_LENGTH;
default:
return 0;
}
}
int decode_descriptor_type_length_value(const uint8_t *data, size_t length,
uint16_t *descriptor_type,
struct variable_field *descriptor_data)
{
uint16_t descriptor_length = 0;
if (data == NULL || descriptor_type == NULL ||
descriptor_data == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
if (length < PLDM_FWUP_DEVICE_DESCRIPTOR_MIN_LEN) {
return PLDM_ERROR_INVALID_LENGTH;
}
struct pldm_descriptor_tlv *entry =
(struct pldm_descriptor_tlv *)(data);
*descriptor_type = le16toh(entry->descriptor_type);
descriptor_length = le16toh(entry->descriptor_length);
if (*descriptor_type != PLDM_FWUP_VENDOR_DEFINED) {
if (descriptor_length !=
get_descriptor_type_length(*descriptor_type)) {
return PLDM_ERROR_INVALID_LENGTH;
}
}
if (length < (sizeof(*descriptor_type) + sizeof(descriptor_length) +
descriptor_length)) {
return PLDM_ERROR_INVALID_LENGTH;
}
descriptor_data->ptr = entry->descriptor_data;
descriptor_data->length = descriptor_length;
return PLDM_SUCCESS;
}
int decode_vendor_defined_descriptor_value(
const uint8_t *data, size_t length, uint8_t *descriptor_title_str_type,
struct variable_field *descriptor_title_str,
struct variable_field *descriptor_data)
{
if (data == NULL || descriptor_title_str_type == NULL ||
descriptor_title_str == NULL || descriptor_data == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
if (length < sizeof(struct pldm_vendor_defined_descriptor_title_data)) {
return PLDM_ERROR_INVALID_LENGTH;
}
struct pldm_vendor_defined_descriptor_title_data *entry =
(struct pldm_vendor_defined_descriptor_title_data *)(data);
if (!is_string_type_valid(
entry->vendor_defined_descriptor_title_str_type) ||
(entry->vendor_defined_descriptor_title_str_len == 0)) {
return PLDM_ERROR_INVALID_DATA;
}
// Assuming atleast 1 byte of VendorDefinedDescriptorData
if (length < (sizeof(struct pldm_vendor_defined_descriptor_title_data) +
entry->vendor_defined_descriptor_title_str_len)) {
return PLDM_ERROR_INVALID_LENGTH;
}
*descriptor_title_str_type =
entry->vendor_defined_descriptor_title_str_type;
descriptor_title_str->ptr = entry->vendor_defined_descriptor_title_str;
descriptor_title_str->length =
entry->vendor_defined_descriptor_title_str_len;
descriptor_data->ptr =
descriptor_title_str->ptr + descriptor_title_str->length;
descriptor_data->length =
length - sizeof(entry->vendor_defined_descriptor_title_str_type) -
sizeof(entry->vendor_defined_descriptor_title_str_len) -
descriptor_title_str->length;
return PLDM_SUCCESS;
}
int encode_query_device_identifiers_req(uint8_t instance_id,
size_t payload_length,
struct pldm_msg *msg)
{
if (msg == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
if (payload_length != PLDM_QUERY_DEVICE_IDENTIFIERS_REQ_BYTES) {
return PLDM_ERROR_INVALID_LENGTH;
}
return encode_pldm_header_only(PLDM_REQUEST, instance_id, PLDM_FWUP,
PLDM_QUERY_DEVICE_IDENTIFIERS, msg);
}
int decode_query_device_identifiers_resp(const struct pldm_msg *msg,
size_t payload_length,
uint8_t *completion_code,
uint32_t *device_identifiers_len,
uint8_t *descriptor_count,
uint8_t **descriptor_data)
{
if (msg == NULL || completion_code == NULL ||
device_identifiers_len == NULL || descriptor_count == NULL ||
descriptor_data == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
*completion_code = msg->payload[0];
if (PLDM_SUCCESS != *completion_code) {
return PLDM_SUCCESS;
}
if (payload_length <
sizeof(struct pldm_query_device_identifiers_resp)) {
return PLDM_ERROR_INVALID_LENGTH;
}
struct pldm_query_device_identifiers_resp *response =
(struct pldm_query_device_identifiers_resp *)msg->payload;
*device_identifiers_len = le32toh(response->device_identifiers_len);
if (*device_identifiers_len < PLDM_FWUP_DEVICE_DESCRIPTOR_MIN_LEN) {
return PLDM_ERROR_INVALID_LENGTH;
}
if (payload_length !=
sizeof(struct pldm_query_device_identifiers_resp) +
*device_identifiers_len) {
return PLDM_ERROR_INVALID_LENGTH;
}
*descriptor_count = response->descriptor_count;
if (*descriptor_count == 0) {
return PLDM_ERROR_INVALID_DATA;
}
*descriptor_data =
(uint8_t *)(msg->payload +
sizeof(struct pldm_query_device_identifiers_resp));
return PLDM_SUCCESS;
}
int encode_get_firmware_parameters_req(uint8_t instance_id,
size_t payload_length,
struct pldm_msg *msg)
{
if (msg == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
if (payload_length != PLDM_GET_FIRMWARE_PARAMETERS_REQ_BYTES) {
return PLDM_ERROR_INVALID_LENGTH;
}
return encode_pldm_header_only(PLDM_REQUEST, instance_id, PLDM_FWUP,
PLDM_GET_FIRMWARE_PARAMETERS, msg);
}
int decode_get_firmware_parameters_resp_comp_set_info(
const struct pldm_msg *msg, size_t payload_length,
struct pldm_get_firmware_parameters_resp *resp_data,
struct variable_field *active_comp_image_set_ver_str,
struct variable_field *pending_comp_image_set_ver_str)
{
if (msg == NULL || resp_data == NULL ||
active_comp_image_set_ver_str == NULL ||
pending_comp_image_set_ver_str == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
if (payload_length < sizeof(struct pldm_get_firmware_parameters_resp)) {
return PLDM_ERROR_INVALID_LENGTH;
}
struct pldm_get_firmware_parameters_resp *response =
(struct pldm_get_firmware_parameters_resp *)msg->payload;
resp_data->completion_code = response->completion_code;
if (PLDM_SUCCESS != resp_data->completion_code) {
return PLDM_SUCCESS;
}
if (response->active_comp_image_set_ver_str_len == 0) {
return PLDM_ERROR_INVALID_DATA;
}
size_t resp_len = sizeof(struct pldm_get_firmware_parameters_resp) +
response->active_comp_image_set_ver_str_len +
response->pending_comp_image_set_ver_str_len;
if (payload_length != resp_len) {
return PLDM_ERROR_INVALID_LENGTH;
}
resp_data->capabilities_during_update.value =
le32toh(response->capabilities_during_update.value);
resp_data->comp_count = le16toh(response->comp_count);
if (resp_data->comp_count == 0) {
return PLDM_ERROR;
}
resp_data->active_comp_image_set_ver_str_type =
response->active_comp_image_set_ver_str_type;
resp_data->active_comp_image_set_ver_str_len =
response->active_comp_image_set_ver_str_len;
resp_data->pending_comp_image_set_ver_str_type =
response->pending_comp_image_set_ver_str_type;
resp_data->pending_comp_image_set_ver_str_len =
response->pending_comp_image_set_ver_str_len;
active_comp_image_set_ver_str->ptr =
msg->payload + sizeof(struct pldm_get_firmware_parameters_resp);
active_comp_image_set_ver_str->length =
resp_data->active_comp_image_set_ver_str_len;
if (resp_data->pending_comp_image_set_ver_str_len != 0) {
pending_comp_image_set_ver_str->ptr =
msg->payload +
sizeof(struct pldm_get_firmware_parameters_resp) +
resp_data->active_comp_image_set_ver_str_len;
pending_comp_image_set_ver_str->length =
resp_data->pending_comp_image_set_ver_str_len;
} else {
pending_comp_image_set_ver_str->ptr = NULL;
pending_comp_image_set_ver_str->length = 0;
}
return PLDM_SUCCESS;
}
int decode_get_firmware_parameters_resp_comp_entry(
const uint8_t *data, size_t length,
struct pldm_component_parameter_entry *component_data,
struct variable_field *active_comp_ver_str,
struct variable_field *pending_comp_ver_str)
{
if (data == NULL || component_data == NULL ||
active_comp_ver_str == NULL || pending_comp_ver_str == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
if (length < sizeof(struct pldm_component_parameter_entry)) {
return PLDM_ERROR_INVALID_LENGTH;
}
struct pldm_component_parameter_entry *entry =
(struct pldm_component_parameter_entry *)(data);
if (entry->active_comp_ver_str_len == 0) {
return PLDM_ERROR_INVALID_LENGTH;
}
size_t entry_length = sizeof(struct pldm_component_parameter_entry) +
entry->active_comp_ver_str_len +
entry->pending_comp_ver_str_len;
if (length != entry_length) {
return PLDM_ERROR_INVALID_LENGTH;
}
component_data->comp_classification =
le16toh(entry->comp_classification);
component_data->comp_identifier = le16toh(entry->comp_identifier);
component_data->comp_classification_index =
entry->comp_classification_index;
component_data->active_comp_comparison_stamp =
le32toh(entry->active_comp_comparison_stamp);
component_data->active_comp_ver_str_type =
entry->active_comp_ver_str_type;
component_data->active_comp_ver_str_len =
entry->active_comp_ver_str_len;
memcpy(component_data->active_comp_release_date,
entry->active_comp_release_date,
sizeof(entry->active_comp_release_date));
component_data->pending_comp_comparison_stamp =
le32toh(entry->pending_comp_comparison_stamp);
component_data->pending_comp_ver_str_type =
entry->pending_comp_ver_str_type;
component_data->pending_comp_ver_str_len =
entry->pending_comp_ver_str_len;
memcpy(component_data->pending_comp_release_date,
entry->pending_comp_release_date,
sizeof(entry->pending_comp_release_date));
component_data->comp_activation_methods.value =
le16toh(entry->comp_activation_methods.value);
component_data->capabilities_during_update.value =
le32toh(entry->capabilities_during_update.value);
active_comp_ver_str->ptr =
data + sizeof(struct pldm_component_parameter_entry);
active_comp_ver_str->length = entry->active_comp_ver_str_len;
if (entry->pending_comp_ver_str_len != 0) {
pending_comp_ver_str->ptr =
data + sizeof(struct pldm_component_parameter_entry) +
entry->active_comp_ver_str_len;
pending_comp_ver_str->length = entry->pending_comp_ver_str_len;
} else {
pending_comp_ver_str->ptr = NULL;
pending_comp_ver_str->length = 0;
}
return PLDM_SUCCESS;
}