add Android NDK Sample, update README.md

.gitmodules

@@ -0,0 +1,6 @@
+[submodule "android/wolfssljni-ndk-sample/wolfssl"]
+	path = android/wolfssljni-ndk-sample/wolfssl
+	url = https://github.com/wolfSSL/wolfssl.git
+[submodule "android/wolfssljni-ndk-sample/wolfssljni"]
+	path = android/wolfssljni-ndk-sample/wolfssljni
+	url = https://github.com/wolfSSL/wolfssljni.git

README.md

@@ -10,20 +10,28 @@ contains a Makefile as well as a simple tutorial on the given topic.
 
 ## Current Examples
 
+#### android (Android NDK Examples)
+
+This directory contains examples that demonstrate using wolfSSL and wolfSSLJNI
+on the Android platform, using the Android NDK toolchain.
+
+Please see the README.md in android/ for further usage and details.
+
 #### clu (wolfSSL Command Line Utility)
 
-This is a tool to provide command line access to wolfcrypt cryptographic libraries.
+This is a tool to provide command line access to wolfcrypt cryptographic
-wolfSSL command line utility will allow users to encrypt or decrypt a user specified
+libraries. wolfSSL command line utility will allow users to encrypt or decrypt
-file to any file name and extension.
+a user specified file to any file name and extension.
 
 Please see the README.md in clu/ for further usage and details.
 
 ###### Unique feature to wolfSSL CLU
-The decision to allow for unique file extensions was prompted by automated tools
+The decision to allow for unique file extensions was prompted by automated
-available for brute forcing files. It will not provide extra security cryptographically
+tools available for brute forcing files. It will not provide extra security
-however it will force attackers to check the header information on every single brute
+cryptographically however it will force attackers to check the header
-force attempt. This will provide further frustration and an extra step in any attempt 
+information on every single brute force attempt. This will provide further
-to brute force a file encrypted with our utility.
+frustration and an extra step in any attempt to brute force a file encrypted
+with our utility.
 
 #### DTLS (Datagram TLS)
 

android/README.md

@@ -0,0 +1,104 @@
+# wolfSSL / wolfSSL JNI Android Examples
+
+This directory contains:
+
+wolfssljni-ndk-sample - Example project that demonstrates how to integrate
+wolfSSL and wolfSSL JNI into an Android NDK application's Android.mk build
+file.
+
+## Prerequisites for successful installation
+
+Prerequisites
+In order to build the wolfCrypt JNI wrapper and wolfCAVP-Android application,
+you need to:
+* Install the `Android SDK` [link](http://developer.android.com/sdk/index.html)
+* Install the `Android NDK` [link](https://developer.android.com/tools/sdk/ndk/index.html)
+
+Note that these instructions do not use the Android Studio IDE and environment.
+This package has been developed and tested using the Android NDK and SDK
+command line tools.
+
+After installing the Android SDK, run the `SDK Tools` app packaged with it and
+install Android 4.4:
+
+```
+$ android
+```
+
+To set up an emulator and create an "Android Virtual Device (avd)" image, run:
+
+```
+$ android avd
+```
+
+## Compiling and Running the wolfssljni-ndk-sample
+
+After the development environment has been set up, follow these instructions
+to compile and install the wolfCrypt JNI + wolfSSL bundle on
+the Emulator:
+
+1) Change directories into the android/wolfssljni-ndk-sample directory
+2) Checkout wolfssl and wolfssljni git submodules
+3) Update Android project as shown below
+4) Proceed to compile NDK and Java code as shown below
+
+```
+$ cd android/wolfssljni-ndk-sample
+$ git submodule init
+$ git submodule update
+$ android update project -p . -s
+$ ndk-build
+$ ant debug
+```
+
+To install and run the application in an Android emulator, start the emulator:
+
+```
+$ emulator -avd <target_name>
+```
+
+Where you can get a list of targets (including the one you created above),
+using:
+
+```
+$ emulator -list-avds
+```
+
+then issue 'ant debug install' from the wolfssljni-ndk-sample directory to
+install the apk into the emulator:
+
+```
+$ ant debug install
+```
+
+Logcat output from the emulator can be viewed by opening a new terminal window
+while the emulator is running and issuing:
+
+```
+$ adb logcat
+```
+
+### Installing and Running wolfCAVP App on Device instead of Emulator
+
+Compiling, installing, and running the wolfssljni-ndk-sample application on a
+real device, versus the Android Emulator is quite easy, and nearly identical
+to running on the Emulator.
+
+To compile the application, follow the same steps as shown above.
+
+After compilation:
+
+1) Turn on the Android Device
+
+2) Go to "Settings -> Developer options" and verify that "USB Debugging"
+   is enabled (checked).
+
+3) Plug Android phone into development computer with USB cable
+
+4) Once the phone has been plugged into the development machine, the same
+   command line tools can be used to install apps, view the logcat, and
+   pull/push data from/to the device using "adb pull" and "adb push"
+   commands. This means you can follow the same steps to install the app
+   on the phone, as described above for the emulator - using
+   "adb debug install".
+

android/wolfssljni-ndk-sample/AndroidManifest.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+      package="com.wolfssl.example"
+      android:versionCode="1"
+      android:versionName="1.0">
+    <uses-sdk android:minSdkVersion="10" />
+    <application android:label="@string/app_name" android:icon="@drawable/icon">
+        <activity android:name="JNITest"
+                  android:label="@string/app_name">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+</manifest> 

android/wolfssljni-ndk-sample/ant.properties

@@ -0,0 +1,18 @@
+# This file is used to override default values used by the Ant build system.
+#
+# This file must be checked into Version Control Systems, as it is
+# integral to the build system of your project.
+
+# This file is only used by the Ant script.
+
+# You can use this to override default values such as
+#  'source.dir' for the location of your java source folder and
+#  'out.dir' for the location of your output folder.
+
+# You can also use it define how the release builds are signed by declaring
+# the following properties:
+#  'key.store' for the location of your keystore and
+#  'key.alias' for the name of the key to use.
+# The password will be asked during the build when you use the 'release' target.
+
+source.dir=src;wolfssl-jni-1.1/src/java;

android/wolfssljni-ndk-sample/jni/Android.mk

@@ -0,0 +1,99 @@
+TOP_PATH   := $(call my-dir)/..
+
+# Build wolfSSL shared library
+include $(CLEAR_VARS)
+LOCAL_PATH      := $(TOP_PATH)/wolfssl
+LOCAL_MODULE    := libwolfssl
+LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)
+LOCAL_C_INCLUDES := $(LOCAL_PATH)
+LOCAL_CFLAGS := -DOPENSSL_EXTRA -DWOLFSSL_DTLS -D_POSIX_THREADS -DNDEBUG \
+				-DPERSIST_SESSION_CACHE -DPERSIST_CERT_CACHE -DATOMIC_USER \
+				-DHAVE_PK_CALLBACKS -DNO_DSA -DHAVE_ECC -DTFM_ECC256 \
+				-DECC_SHAMIR -DNO_PSK -DNO_MD4 -DNO_HC128 -DNO_RABBIT \
+				-DHAVE_OCSP -DHAVE_CRL \
+				-Wall
+LOCAL_SRC_FILES := src/crl.c \
+				   src/internal.c \
+				   src/io.c \
+				   src/keys.c \
+				   src/ocsp.c \
+				   src/sniffer.c \
+				   src/ssl.c \
+				   src/tls.c \
+				   wolfcrypt/src/aes.c \
+				   wolfcrypt/src/arc4.c \
+				   wolfcrypt/src/asm.c \
+				   wolfcrypt/src/asn.c \
+				   wolfcrypt/src/blake2b.c \
+				   wolfcrypt/src/camellia.c \
+				   wolfcrypt/src/chacha.c \
+				   wolfcrypt/src/chacha20_poly1305.c \
+				   wolfcrypt/src/coding.c \
+				   wolfcrypt/src/compress.c \
+				   wolfcrypt/src/curve25519.c \
+				   wolfcrypt/src/des3.c \
+				   wolfcrypt/src/dh.c \
+				   wolfcrypt/src/dsa.c \
+				   wolfcrypt/src/ecc.c \
+				   wolfcrypt/src/ecc_fp.c \
+				   wolfcrypt/src/ed25519.c \
+				   wolfcrypt/src/error.c \
+				   wolfcrypt/src/fe_low_mem.c \
+				   wolfcrypt/src/fe_operations.c \
+				   wolfcrypt/src/ge_low_mem.c \
+				   wolfcrypt/src/ge_operations.c \
+				   wolfcrypt/src/hash.c \
+				   wolfcrypt/src/hc128.c \
+				   wolfcrypt/src/hmac.c \
+				   wolfcrypt/src/integer.c \
+				   wolfcrypt/src/logging.c \
+				   wolfcrypt/src/md2.c \
+				   wolfcrypt/src/md4.c \
+				   wolfcrypt/src/md5.c \
+				   wolfcrypt/src/memory.c \
+				   wolfcrypt/src/misc.c \
+				   wolfcrypt/src/pkcs7.c \
+				   wolfcrypt/src/poly1305.c \
+				   wolfcrypt/src/pwdbased.c \
+				   wolfcrypt/src/rabbit.c \
+				   wolfcrypt/src/random.c \
+				   wolfcrypt/src/ripemd.c \
+				   wolfcrypt/src/rsa.c \
+				   wolfcrypt/src/sha.c \
+				   wolfcrypt/src/sha256.c \
+				   wolfcrypt/src/sha512.c \
+				   wolfcrypt/src/tfm.c \
+				   wolfcrypt/src/wc_port.c
+include $(BUILD_SHARED_LIBRARY)
+
+
+## Build wolfSSL JNI library
+include $(CLEAR_VARS)
+LOCAL_PATH       := $(TOP_PATH)/wolfssljni
+LOCAL_MODULE     := libwolfssljni
+LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/native
+LOCAL_C_INCLUDES := $(LOCAL_PATH)/native
+LOCAL_SRC_FILES  := native/com_wolfssl_WolfSSL.c \
+				    native/com_wolfssl_WolfSSLContext.c \
+				    native/com_wolfssl_WolfSSLSession.c \
+				    native/com_wolfssl_wolfcrypt_ECC.c \
+			  	    native/com_wolfssl_wolfcrypt_RSA.c
+LOCAL_CFLAGS := -DOPENSSL_EXTRA -DWOLFSSL_DTLS -D_POSIX_THREADS -DNDEBUG \
+				-DPERSIST_SESSION_CACHE -DPERSIST_CERT_CACHE -DATOMIC_USER \
+				-DHAVE_PK_CALLBACKS -DNO_DSA -DHAVE_ECC -DTFM_ECC256 \
+				-DECC_SHAMIR -DNO_PSK -DNO_MD4 -DNO_HC128 -DNO_RABBIT \
+				-DHAVE_OCSP -DHAVE_CRL \
+                -Wall -Os
+LOCAL_SHARED_LIBRARIES := libwolfssl
+include $(BUILD_SHARED_LIBRARY)
+
+
+include $(CLEAR_VARS)
+LOCAL_PATH   := $(TOP_PATH)/jni
+LOCAL_MODULE := libjnitest
+LOCAL_C_INCLUDES := $(LOCAL_PATH)
+LOCAL_SRC_FILES := jnitest.c
+LOCAL_CFLAGS := -Wall
+LOCAL_SHARED_LIBRARIES := libwolfssl
+include $(BUILD_SHARED_LIBRARY)
+

android/wolfssljni-ndk-sample/jni/com_wolfssl_example_JNITest.h

@@ -0,0 +1,41 @@
+/* com_wolfssl_example_JNITest.h
+ *
+ * Copyright (C) 2006-2015 wolfSSL Inc.
+ *
+ * This file is part of wolfSSL. (formerly known as CyaSSL)
+ *
+ * wolfSSL is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * wolfSSL is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+/* DO NOT EDIT THIS FILE - it is machine generated */
+#include <jni.h>
+/* Header for class com_wolfssl_example_JNITest */
+
+#ifndef _Included_com_wolfssl_example_JNITest
+#define _Included_com_wolfssl_example_JNITest
+#ifdef __cplusplus
+extern "C" {
+#endif
+/*
+ * Class:     com_wolfssl_example_JNITest
+ * Method:    getJniString
+ * Signature: ()Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_com_wolfssl_example_JNITest_getJniString
+  (JNIEnv *, jobject);
+
+#ifdef __cplusplus
+}
+#endif
+#endif

android/wolfssljni-ndk-sample/jni/jnitest.c

@@ -0,0 +1,30 @@
+/* jnitest.c
+ *
+ * Copyright (C) 2006-2015 wolfSSL Inc.
+ *
+ * This file is part of wolfSSL. (formerly known as CyaSSL)
+ *
+ * wolfSSL is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * wolfSSL is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include <jni.h>
+#include <wolfssl/ssl.h>
+
+JNIEXPORT jstring JNICALL Java_com_wolfssl_example_JNITest_getJniString
+  (JNIEnv* jenv, jobject jobj)
+{
+    return (*jenv)->NewStringUTF(jenv, "Hello from native JNI");
+}
+

android/wolfssljni-ndk-sample/project.properties

@@ -0,0 +1,12 @@
+# This file is automatically generated by Android Tools.
+# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
+#
+# This file must be checked in Version Control Systems.
+#
+# To customize properties used by the Ant build system use,
+# "build.properties", and override values to adapt the script to your
+# project structure.
+
+# Project target.
+target=android-19
+

android/wolfssljni-ndk-sample/res/layout/main.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    >
+<TextView  
+    android:layout_width="fill_parent" 
+    android:layout_height="wrap_content" 
+    android:text="Hello World, JNITest"
+    />
+</LinearLayout>
+

android/wolfssljni-ndk-sample/res/values/strings.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">JNITest</string>
+</resources>

android/wolfssljni-ndk-sample/src/com/wolfssl/example/JNITest.java

@@ -0,0 +1,61 @@
+/* JNITest.java
+ *
+ * Copyright (C) 2006-2015 wolfSSL Inc.
+ *
+ * This file is part of wolfSSL. (formerly known as CyaSSL)
+ *
+ * wolfSSL is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * wolfSSL is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+package com.wolfssl.example;
+
+import android.app.Activity;
+import android.widget.TextView;
+import android.os.Bundle;
+
+import com.wolfssl.WolfSSL;
+
+public class JNITest extends Activity
+{
+    /** Called when the activity is first created. */
+    @Override
+    public void onCreate(Bundle savedInstanceState)
+    {
+        super.onCreate(savedInstanceState);
+
+        /* create TextView and set contents */
+        TextView tv = new TextView(this);
+        String jniString = getJniString();
+        tv.setText(jniString);
+        setContentView(tv);
+
+        try {
+
+            /* initialize wolfSSL library, using JNI wrapper */
+            WolfSSL sslLib = new WolfSSL();
+
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    public native String getJniString();
+
+    static {
+        /* these must be loaded in the correct order of dependency */
+        System.loadLibrary("wolfssl");
+        System.loadLibrary("wolfssljni");
+        System.loadLibrary("jnitest");
+    }
+}

android/wolfssljni-ndk-sample/wolfssl

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+Subproject commit ea7f955bd44a5b607938c3fad095c3e27a853407

android/wolfssljni-ndk-sample/wolfssljni

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+Subproject commit 1cf5e24da2871bf8b4332e1f7f2e634395141f8c