commit 22fad3957d36b14cafb1287b0e8ece36fdf8ca75
author Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com> Fri Oct 27 11:05:01 2023 +0800
committer Andrew Jeffery <andrew@codeconstruct.com.au> Tue Nov 28 18:08:16 2023 +1030
tree 99fd78378198b8ace749b989d202fb4be766ed58
parent 3a2670599078c36cf718970ce35c37d7fe396d44

oem: meta: Add decode_oem_meta_file_io_req()

Support decode_oem_meta_file_io_req() cmd to decode the incoming post
code.

PLDM OEM Meta Write File IO cmd:
Example:
  Request:
    Byte 0: 0x3F (OEM cmd)
    Byte 1: 0x02 (FILE IO)
    Byte 2: 0x00 (File io type : POST CODE)
    Byte 3-6: 0x04 (Data length)
    Byte 7-10: 0x93 0xE0 0x00 0xEA (post code)

  Response:
    Byte 0: 0x00 (success)

Tested:
- Unit Tests passed.

Change-Id: I85437698642dd3cbe6084acf1feada842d206eac
Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com>

src/oem/meta/file_io.c

diff --git a/src/oem/meta/file_io.c b/src/oem/meta/file_io.c
new file mode 100644
index 0000000..6662e8f
--- /dev/null
+++ b/src/oem/meta/file_io.c
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later */
+#include <libpldm/oem/meta/file_io.h>
+#include <endian.h>
+#include <string.h>
+#include <stdio.h>
+#include "msgbuf.h"
+
+#define PLDM_OEM_META_DECODE_WRITE_FILE_IO_MIN_SIZE 6
+LIBPLDM_ABI_TESTING
+int decode_oem_meta_file_io_req(const struct pldm_msg *msg,
+				size_t payload_length, uint8_t *file_handle,
+				uint32_t *length, uint8_t *data)
+{
+	struct pldm_msgbuf _buf;
+	struct pldm_msgbuf *buf = &_buf;
+
+	if (msg == NULL || file_handle == NULL || length == NULL ||
+	    data == NULL) {
+		return PLDM_ERROR_INVALID_DATA;
+	}
+
+	int rc = pldm_msgbuf_init(buf,
+				  PLDM_OEM_META_DECODE_WRITE_FILE_IO_MIN_SIZE,
+				  msg->payload, payload_length);
+	if (rc) {
+		return rc;
+	}
+
+	pldm_msgbuf_extract(buf, file_handle);
+	pldm_msgbuf_extract(buf, length);
+	pldm_msgbuf_extract_array_uint8(buf, data, *length);
+
+	return pldm_msgbuf_destroy_consumed(buf);
+}

src/oem/meta/meson.build

diff --git a/src/oem/meta/meson.build b/src/oem/meta/meson.build
new file mode 100644
index 0000000..6c89286
--- /dev/null
+++ b/src/oem/meta/meson.build
@@ -0,0 +1,3 @@
+libpldm_sources += files(
+    'file_io.c'
+  )