Implement response encode/request decode for ReadFileIntoMemory
The ReadFileIntoMemory command is an OEM command to support large
size transfer from BMC to Host via DMA mechanism.
Change-Id: I416a1af8a4d1ea91a7dffbbb98ae58eeccf6d0ea
Signed-off-by: Tom Joseph <tomjoseph@in.ibm.com>
diff --git a/libpldm/file_io.c b/libpldm/file_io.c
new file mode 100644
index 0000000..426033a
--- /dev/null
+++ b/libpldm/file_io.c
@@ -0,0 +1,53 @@
+#include "file_io.h"
+#include <endian.h>
+#include <string.h>
+
+int decode_read_file_memory_req(const uint8_t *msg, size_t payload_length,
+ uint32_t *file_handle, uint32_t *offset,
+ uint32_t *length, uint64_t *address)
+{
+ if (msg == NULL || file_handle == NULL || offset == NULL ||
+ length == NULL || address == NULL) {
+ return PLDM_ERROR_INVALID_DATA;
+ }
+
+ if (payload_length != PLDM_READ_FILE_MEM_REQ_BYTES) {
+ return PLDM_ERROR_INVALID_LENGTH;
+ }
+
+ *file_handle = le32toh(*((uint32_t *)msg));
+ *offset = le32toh(*((uint32_t *)(msg + sizeof(*file_handle))));
+ *length = le32toh(
+ *((uint32_t *)(msg + sizeof(*file_handle) + sizeof(*offset))));
+ *address = le64toh(*((uint64_t *)(msg + sizeof(*file_handle) +
+ sizeof(*offset) + sizeof(*length))));
+
+ return PLDM_SUCCESS;
+}
+
+int encode_read_file_memory_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;
+
+ uint8_t *payload = msg->payload;
+ *payload = completion_code;
+
+ header.msg_type = PLDM_RESPONSE;
+ header.instance = instance_id;
+ header.pldm_type = PLDM_IBM_OEM_TYPE;
+ header.command = PLDM_READ_FILE_INTO_MEMORY;
+
+ if ((rc = pack_pldm_header(&header, &(msg->hdr))) > PLDM_SUCCESS) {
+ return rc;
+ }
+
+ if (msg->payload[0] == PLDM_SUCCESS) {
+ uint8_t *dst = msg->payload + sizeof(completion_code);
+ length = htole32(length);
+ memcpy(dst, &length, sizeof(length));
+ }
+
+ return PLDM_SUCCESS;
+}