From 7831f57922c9a328285cb0cfbc321eca38b6b080 Mon Sep 17 00:00:00 2001
From: "saurabh.s9" <saurabh.s9@samsung.com>
Date: Mon, 16 Jan 2017 17:25:05 +0530
Subject: [PATCH] Adding C++ wrapper and test case to set a seed value for UUID
 generation

Change-Id: I14d20ce49b87741dfbef34631cb8f728f3c33b41
Signed-off-by: saurabh.s9 <saurabh.s9@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/16435
Tested-by: jenkins-iotivity <jenkins@iotivity.org>
Reviewed-by: Randeep Singh <randeep.s@samsung.com>
(cherry picked from commit d58a56bc2929f322b0997d2e6d52a8d2356192d2)
Reviewed-on: https://gerrit.iotivity.org/gerrit/16713
---
 resource/include/OCProvisioningManager.hpp         |  8 ++++++++
 .../provisioning/src/OCProvisioningManager.cpp     | 24 ++++++++++++++++++++++
 .../provisioning/unittests/OCProvisioningTest.cpp  | 21 +++++++++++++++++++
 3 files changed, 53 insertions(+)

diff --git a/resource/include/OCProvisioningManager.hpp b/resource/include/OCProvisioningManager.hpp
index f38ce50..730057b 100644
--- a/resource/include/OCProvisioningManager.hpp
+++ b/resource/include/OCProvisioningManager.hpp
@@ -521,6 +521,14 @@ namespace OC
              */
             static void certCallbackWrapper(void* ctx, uint16_t credId, uint8_t *trustCertChain,
                                 size_t chainSize);
+
+            /**
+             * Wrapper to save the seed value to generate device UUID
+             *
+             * @param[in] seed  buffer of seed value
+             * @param[in] seedSize byte length of seed
+             */
+             static OCStackResult setDeviceIdSeed(const uint8_t* seed, size_t seedSize);
 #endif // __WITH_DTLS__ || __WITH_TLS__
 
 
diff --git a/resource/provisioning/src/OCProvisioningManager.cpp b/resource/provisioning/src/OCProvisioningManager.cpp
index d329f65..1e08a3c 100644
--- a/resource/provisioning/src/OCProvisioningManager.cpp
+++ b/resource/provisioning/src/OCProvisioningManager.cpp
@@ -988,6 +988,30 @@ namespace OC
         }
         return result;
     }
+
+    OCStackResult OCSecure::setDeviceIdSeed(const uint8_t* seed, size_t seedSize)
+    {
+        if (!seed)
+        {
+            oclog() <<"seed can not be null";
+            return OC_STACK_INVALID_PARAM;
+        }
+
+        OCStackResult result;
+        auto cLock = OCPlatform_impl::Instance().csdkLock().lock();
+
+        if (cLock)
+        {
+            std::lock_guard<std::recursive_mutex> lock(*cLock);
+            result = SetDeviceIdSeed(seed, seedSize);
+        }
+        else
+        {
+            oclog() <<"Mutex not found";
+            result = OC_STACK_ERROR;
+        }
+        return result;
+    }
 #endif // __WITH_DTLS__ || __WITH_TLS__
 
     void OCSecureResource::callbackWrapper(void* ctx, size_t nOfRes, OCProvisionResult_t *arr, bool hasError)
diff --git a/resource/provisioning/unittests/OCProvisioningTest.cpp b/resource/provisioning/unittests/OCProvisioningTest.cpp
index 61b4499..09086a1 100644
--- a/resource/provisioning/unittests/OCProvisioningTest.cpp
+++ b/resource/provisioning/unittests/OCProvisioningTest.cpp
@@ -250,4 +250,25 @@ namespace OCProvisioningTest
         OCSecureResource device;
         EXPECT_EQ(OC_STACK_INVALID_PARAM, device.provisionDirectPairing(nullptr, nullptr));
     }
+#if defined(__WITH_DTLS__) || defined(__WITH_TLS__)
+    TEST(setDeviceIdSeed, NullParam)
+    {
+        EXPECT_EQ(OC_STACK_INVALID_PARAM, OCSecure::setDeviceIdSeed(NULL, 0));
+    }
+
+    TEST(setDeviceIdSeed, InvalidParam)
+    {
+        uint8_t seed[1024] = {0};
+
+        EXPECT_EQ(OC_STACK_INVALID_PARAM, OCSecure::setDeviceIdSeed(seed, 0));
+        EXPECT_EQ(OC_STACK_INVALID_PARAM, OCSecure::setDeviceIdSeed(seed, sizeof(seed)));
+    }
+
+    TEST(setDeviceIdSeed, ValidValue)
+    {
+        uint8_t seed[16] = {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
+                            0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10};
+        EXPECT_EQ(OC_STACK_OK, OCSecure::setDeviceIdSeed(seed, sizeof(seed)));
+    }
+#endif // __WITH_DTLS__ || __WITH_TLS__
 }
-- 
2.7.4