libpldm: Add API to decode package header info
This patch provides API to decode the firmware update package header
information and also do basic validation.
The API works with DSP0267_1.1.0, DSP0267_1.0.1 and DSP0267_1.0.0.
Tested: Unit tests passed
Signed-off-by: Tom Joseph <rushtotom@gmail.com>
Change-Id: I208a219cd4b9c9b9869eb3e286259b2f51206487
diff --git a/libpldm/firmware_update.c b/libpldm/firmware_update.c
index acb95fd..d31ec4a 100644
--- a/libpldm/firmware_update.c
+++ b/libpldm/firmware_update.c
@@ -71,6 +71,60 @@
}
}
+int decode_pldm_package_header_info(
+ const uint8_t *data, size_t length,
+ struct pldm_package_header_information *package_header_info,
+ struct variable_field *package_version_str)
+{
+ if (data == NULL || package_header_info == NULL ||
+ package_version_str == NULL) {
+ return PLDM_ERROR_INVALID_DATA;
+ }
+
+ if (length < sizeof(struct pldm_package_header_information)) {
+ return PLDM_ERROR_INVALID_LENGTH;
+ }
+
+ struct pldm_package_header_information *data_header =
+ (struct pldm_package_header_information *)(data);
+
+ if (!is_string_type_valid(data_header->package_version_string_type) ||
+ (data_header->package_version_string_length == 0)) {
+ return PLDM_ERROR_INVALID_DATA;
+ }
+
+ if (length < sizeof(struct pldm_package_header_information) +
+ data_header->package_version_string_length) {
+ return PLDM_ERROR_INVALID_LENGTH;
+ }
+
+ if ((data_header->component_bitmap_bit_length %
+ PLDM_FWUP_COMPONENT_BITMAP_MULTIPLE) != 0) {
+ return PLDM_ERROR_INVALID_DATA;
+ }
+
+ memcpy(package_header_info->uuid, data_header->uuid,
+ sizeof(data_header->uuid));
+ package_header_info->package_header_format_version =
+ data_header->package_header_format_version;
+ package_header_info->package_header_size =
+ le16toh(data_header->package_header_size);
+ memcpy(package_header_info->timestamp104, data_header->timestamp104,
+ sizeof(data_header->timestamp104));
+ package_header_info->component_bitmap_bit_length =
+ le16toh(data_header->component_bitmap_bit_length);
+ package_header_info->package_version_string_type =
+ data_header->package_version_string_type;
+ package_header_info->package_version_string_length =
+ data_header->package_version_string_length;
+ package_version_str->ptr =
+ data + sizeof(struct pldm_package_header_information);
+ package_version_str->length =
+ package_header_info->package_version_string_length;
+
+ return PLDM_SUCCESS;
+}
+
int decode_descriptor_type_length_value(const uint8_t *data, size_t length,
uint16_t *descriptor_type,
struct variable_field *descriptor_data)