oem-ibm: libpldm: add file IO APIs
This commit implements encode and decode APIs for in-band readFile and
writeFile commands.
In-band file IO is preferred over DMA for smaller files.
Change-Id: I92ec011560ba39aed497f533074479236abeb766
Signed-off-by: vkaverap <vkaverap@in.ibm.com>
diff --git a/oem/ibm/libpldm/file_io.c b/oem/ibm/libpldm/file_io.c
index 7806ae6..dc8ad6b 100644
--- a/oem/ibm/libpldm/file_io.c
+++ b/oem/ibm/libpldm/file_io.c
@@ -155,3 +155,229 @@
return PLDM_SUCCESS;
}
+
+int decode_read_file_req(const struct pldm_msg *msg, size_t payload_length,
+ uint32_t *file_handle, uint32_t *offset,
+ uint32_t *length)
+{
+ if (msg == NULL || file_handle == NULL || offset == NULL ||
+ length == NULL) {
+ return PLDM_ERROR_INVALID_DATA;
+ }
+
+ if (payload_length != PLDM_READ_FILE_REQ_BYTES) {
+ return PLDM_ERROR_INVALID_LENGTH;
+ }
+
+ struct pldm_read_file_req *request =
+ (struct pldm_read_file_req *)msg->payload;
+
+ *file_handle = le32toh(request->file_handle);
+ *offset = le32toh(request->offset);
+ *length = le32toh(request->length);
+
+ return PLDM_SUCCESS;
+}
+
+int encode_read_file_req(uint8_t instance_id, uint32_t file_handle,
+ uint32_t offset, uint32_t length, struct pldm_msg *msg)
+{
+ struct pldm_header_info header = {0};
+ int rc = PLDM_SUCCESS;
+
+ header.msg_type = PLDM_REQUEST;
+ header.instance = instance_id;
+ header.pldm_type = PLDM_OEM;
+ header.command = PLDM_READ_FILE;
+
+ if (msg == NULL) {
+ return PLDM_ERROR_INVALID_DATA;
+ }
+
+ if (length == 0) {
+ return PLDM_INVALID_READ_LENGTH;
+ }
+
+ if ((rc = pack_pldm_header(&header, &(msg->hdr))) > PLDM_SUCCESS) {
+ return rc;
+ }
+
+ struct pldm_read_file_req *request =
+ (struct pldm_read_file_req *)msg->payload;
+
+ request->file_handle = htole32(file_handle);
+ request->offset = htole32(offset);
+ request->length = htole32(length);
+
+ return PLDM_SUCCESS;
+}
+
+int decode_read_file_resp(const struct pldm_msg *msg, size_t payload_length,
+ uint8_t *completion_code, uint32_t *length,
+ size_t *file_data_offset)
+{
+ if (msg == NULL || completion_code == NULL || length == NULL) {
+ return PLDM_ERROR_INVALID_DATA;
+ }
+
+ if (payload_length < PLDM_READ_FILE_RESP_BYTES) {
+ return PLDM_ERROR_INVALID_LENGTH;
+ }
+
+ struct pldm_read_file_resp *response =
+ (struct pldm_read_file_resp *)msg->payload;
+
+ *completion_code = response->completion_code;
+ if (*completion_code == PLDM_SUCCESS) {
+ *length = le32toh(response->length);
+ if (payload_length != PLDM_READ_FILE_RESP_BYTES + *length) {
+ return PLDM_ERROR_INVALID_LENGTH;
+ }
+ *file_data_offset = sizeof(*completion_code) + sizeof(*length);
+ }
+
+ return PLDM_SUCCESS;
+}
+
+int encode_read_file_resp(uint8_t instance_id, uint8_t completion_code,
+ uint32_t length, struct pldm_msg *msg)
+{
+ struct pldm_header_info header = {0};
+ int rc = PLDM_SUCCESS;
+
+ header.msg_type = PLDM_RESPONSE;
+ header.instance = instance_id;
+ header.pldm_type = PLDM_OEM;
+ header.command = PLDM_READ_FILE;
+
+ if (msg == NULL) {
+ return PLDM_ERROR_INVALID_DATA;
+ }
+
+ if ((rc = pack_pldm_header(&header, &(msg->hdr))) > PLDM_SUCCESS) {
+ return rc;
+ }
+
+ struct pldm_read_file_resp *response =
+ (struct pldm_read_file_resp *)msg->payload;
+ response->completion_code = completion_code;
+
+ if (response->completion_code == PLDM_SUCCESS) {
+ response->length = htole32(length);
+ }
+
+ return PLDM_SUCCESS;
+}
+
+int decode_write_file_req(const struct pldm_msg *msg, size_t payload_length,
+ uint32_t *file_handle, uint32_t *offset,
+ uint32_t *length, size_t *file_data_offset)
+{
+ if (msg == NULL || file_handle == NULL || length == NULL) {
+ return PLDM_ERROR_INVALID_DATA;
+ }
+
+ if (payload_length < PLDM_WRITE_FILE_REQ_BYTES) {
+ return PLDM_ERROR_INVALID_LENGTH;
+ }
+
+ struct pldm_write_file_req *request =
+ (struct pldm_write_file_req *)msg->payload;
+
+ *file_handle = le32toh(request->file_handle);
+ *offset = le32toh(request->offset);
+ *length = le32toh(request->length);
+ if (payload_length != PLDM_WRITE_FILE_REQ_BYTES + *length) {
+ return PLDM_ERROR_INVALID_LENGTH;
+ }
+ *file_data_offset =
+ sizeof(*file_handle) + sizeof(*offset) + sizeof(*length);
+
+ return PLDM_SUCCESS;
+}
+
+int encode_write_file_req(uint8_t instance_id, uint32_t file_handle,
+ uint32_t offset, uint32_t length,
+ struct pldm_msg *msg)
+{
+ struct pldm_header_info header = {0};
+ int rc = PLDM_SUCCESS;
+
+ header.msg_type = PLDM_REQUEST;
+ header.instance = instance_id;
+ header.pldm_type = PLDM_OEM;
+ header.command = PLDM_WRITE_FILE;
+
+ if (msg == NULL) {
+ return PLDM_ERROR_INVALID_DATA;
+ }
+
+ if ((rc = pack_pldm_header(&header, &(msg->hdr))) > PLDM_SUCCESS) {
+ return rc;
+ }
+
+ if (length == 0) {
+ return PLDM_INVALID_WRITE_LENGTH;
+ }
+
+ struct pldm_write_file_req *request =
+ (struct pldm_write_file_req *)msg->payload;
+
+ request->file_handle = htole32(file_handle);
+ request->offset = htole32(offset);
+ request->length = htole32(length);
+
+ return PLDM_SUCCESS;
+}
+
+int decode_write_file_resp(const struct pldm_msg *msg, size_t payload_length,
+ uint8_t *completion_code, uint32_t *length)
+{
+ if (msg == NULL || completion_code == NULL || length == NULL) {
+ return PLDM_ERROR_INVALID_DATA;
+ }
+
+ if (payload_length != PLDM_WRITE_FILE_RESP_BYTES) {
+ return PLDM_ERROR_INVALID_LENGTH;
+ }
+
+ struct pldm_write_file_resp *response =
+ (struct pldm_write_file_resp *)msg->payload;
+
+ *completion_code = le32toh(response->completion_code);
+ if (response->completion_code == PLDM_SUCCESS) {
+ *length = le32toh(response->length);
+ }
+
+ return PLDM_SUCCESS;
+}
+
+int encode_write_file_resp(uint8_t instance_id, uint8_t completion_code,
+ uint32_t length, struct pldm_msg *msg)
+{
+ struct pldm_header_info header = {0};
+ int rc = PLDM_SUCCESS;
+
+ header.msg_type = PLDM_RESPONSE;
+ header.instance = instance_id;
+ header.pldm_type = PLDM_OEM;
+ header.command = PLDM_WRITE_FILE;
+
+ if (msg == NULL) {
+ return PLDM_ERROR_INVALID_DATA;
+ }
+
+ if ((rc = pack_pldm_header(&header, &(msg->hdr))) > PLDM_SUCCESS) {
+ return rc;
+ }
+
+ struct pldm_write_file_resp *response =
+ (struct pldm_write_file_resp *)msg->payload;
+ response->completion_code = completion_code;
+
+ if (response->completion_code == PLDM_SUCCESS) {
+ response->length = htole32(length);
+ }
+
+ return PLDM_SUCCESS;
+}