Merge pull request #211 from lchristina26/master

GenerateSeed() Function for VxWorks compatibility

IDE/WORKBENCH/README.md

@@ -50,11 +50,21 @@ wolfcrypt directories. Uncheck the following:
 \#ifdef WOLFSSL\_VXWORKS block, a new GenerateSeed() function will need to be defined
 in wolfcrypt/src/random.c.
 
+8. Include Entropy:
+    - Create a new project, similar to step 1 but choose VxWorks Source Build Project as the type of project instead of VxWorks Image Project. 
+
+    - In the project directory, double click "Source Build Configuration" and under os > core > CORE\_KERNEL Menu > VxWorks Kernel Component Configuration find "Inject entropy in interrupts". Double click this. 
+
+    - Go back to your VIP project. Right click the project and select "Properties".
+
+    - In "Properties", select "Project References". Check the box next to the new project you created. Click "Ok". 
+
+    - Rebuild the project. 
+
 ####3 Testing wolfSSL with VxWorks:
 #####3.1 wolfCrypt Test and Benchmark Applications
 The wolfCrypt test application will test each of the cryptographic algorithms
-and output the status for each as a success or failure. The benchmark application will output the runtime of
+and output the status for each as a success or failure. The benchmark application will output the runtime of the cryptographic algorithms in milliseconds.
-the cryptographic algorithms in milliseconds.
 
 1. Include the following at the top of usrAppInit.c:
        

wolfcrypt/src/random.c

@@ -1285,6 +1285,23 @@ int wc_GenerateSeed(OS_Seed* os, byte* output, word32 sz)
         return 0;
     }
 
+#elif defined(WOLFSSL_VXWORKS)
+
+    #include <randomNumGen.h>
+
+    int wc_GenerateSeed(OS_Seed* os, byte* output, word32 sz) {
+        STATUS        status;
+
+        /* RANDOM ENTORPY INJECT component must be enabled in VSB project */
+        status = randBytes (output, sz);
+        if (status == ERROR) {
+            WOLFSSL_MSG("Random seed failed! Enable RANDOM ENTROPY INJECT.");
+            return RNG_FAILURE_E;
+        }
+
+        return 0;
+    }
+
 #elif defined(CUSTOM_RAND_GENERATE)
 
    /* Implement your own random generation function