libpldm: Added encode API for GetStatus request

The UA sends this command to acquire the status of the FD/FDP. This
implementation works with DSP0267_1.1.0, DSP0267_1.0.1 and
DSP0267_1.0.0.

Tested: Unit tests passed

Signed-off-by: gokulsanker <gokul.sanker.v.g@intel.com>
Change-Id: I413a5456f56ddcf6de18ac373b203989a8020834
diff --git a/libpldm/firmware_update.c b/libpldm/firmware_update.c
index cf8080e..4e98e59 100644
--- a/libpldm/firmware_update.c
+++ b/libpldm/firmware_update.c
@@ -1257,3 +1257,27 @@
 

 	return PLDM_SUCCESS;

 }

+

+int encode_get_status_req(uint8_t instance_id, struct pldm_msg *msg,

+			  size_t payload_length)

+{

+	if (msg == NULL) {

+		return PLDM_ERROR_INVALID_DATA;

+	}

+

+	if (payload_length != PLDM_GET_STATUS_REQ_BYTES) {

+		return PLDM_ERROR_INVALID_LENGTH;

+	}

+

+	struct pldm_header_info header = {0};

+	header.instance = instance_id;

+	header.msg_type = PLDM_REQUEST;

+	header.pldm_type = PLDM_FWUP;

+	header.command = PLDM_GET_STATUS;

+	uint8_t rc = pack_pldm_header(&header, &(msg->hdr));

+	if (rc) {

+		return rc;

+	}

+

+	return PLDM_SUCCESS;

+}

diff --git a/libpldm/firmware_update.h b/libpldm/firmware_update.h
index bb09c56..231aaa0 100644
--- a/libpldm/firmware_update.h
+++ b/libpldm/firmware_update.h
@@ -18,6 +18,7 @@
 #define PLDM_GET_FIRMWARE_PARAMETERS_REQ_BYTES 0

 #define PLDM_FWUP_BASELINE_TRANSFER_SIZE 32

 #define PLDM_FWUP_MIN_OUTSTANDING_REQ 1

+#define PLDM_GET_STATUS_REQ_BYTES 0

 

 /** @brief PLDM Firmware update commands

  */

@@ -31,7 +32,8 @@
 	PLDM_TRANSFER_COMPLETE = 0x16,

 	PLDM_VERIFY_COMPLETE = 0x17,

 	PLDM_APPLY_COMPLETE = 0x18,

-	PLDM_ACTIVATE_FIRMWARE = 0x1A

+	PLDM_ACTIVATE_FIRMWARE = 0x1A,

+	PLDM_GET_STATUS = 0x1B

 };

 

 /** @brief PLDM Firmware update completion codes

@@ -940,6 +942,20 @@
 				  uint8_t *completion_code,

 				  uint16_t *estimated_time_activation);

 

+/** @brief Create PLDM request message for GetStatus

+ *

+ *  @param[in] instance_id - Message's instance id

+ *  @param[in,out] msg - Message will be written to this

+ *  @param[in] payload_length - Length of request message payload

+ *

+ *  @return pldm_completion_codes

+ *

+ *  @note Caller is responsible for memory alloc and dealloc of param

+ *        'msg.payload'

+ */

+int encode_get_status_req(uint8_t instance_id, struct pldm_msg *msg,

+			  size_t payload_length);

+

 #ifdef __cplusplus

 }

 #endif

diff --git a/libpldm/tests/libpldm_firmware_update_test.cpp b/libpldm/tests/libpldm_firmware_update_test.cpp
index 350db59..0577c51 100644
--- a/libpldm/tests/libpldm_firmware_update_test.cpp
+++ b/libpldm/tests/libpldm_firmware_update_test.cpp
@@ -2451,4 +2451,30 @@
         responseMsg, sizeof(pldm_activate_firmware_resp) - 1, &completionCode,

         &estimatedTimeForActivation);

     EXPECT_EQ(rc, PLDM_ERROR_INVALID_LENGTH);

-}
\ No newline at end of file
+}

+

+TEST(GetStatus, goodPathEncodeRequest)

+{

+    constexpr uint8_t instanceId = 8;

+    std::array<uint8_t, hdrSize> request{};

+    auto requestMsg = reinterpret_cast<pldm_msg*>(request.data());

+

+    auto rc = encode_get_status_req(instanceId, requestMsg,

+                                    PLDM_GET_STATUS_REQ_BYTES);

+    EXPECT_EQ(rc, PLDM_SUCCESS);

+

+    constexpr std::array<uint8_t, hdrSize> outRequest{0x88, 0x05, 0x1B};

+    EXPECT_EQ(request, outRequest);

+}

+

+TEST(GetStatus, errorPathEncodeRequest)

+{

+    std::array<uint8_t, hdrSize + sizeof(uint8_t)> request{};

+    auto requestMsg = reinterpret_cast<pldm_msg*>(request.data());

+

+    auto rc = encode_get_status_req(0, nullptr, PLDM_GET_STATUS_REQ_BYTES);

+    EXPECT_EQ(rc, PLDM_ERROR_INVALID_DATA);

+

+    rc = encode_get_status_req(0, requestMsg, PLDM_GET_STATUS_REQ_BYTES + 1);

+    EXPECT_EQ(rc, PLDM_ERROR_INVALID_LENGTH);

+}