Added generalized (Apple) project, working on funneling in the guides

README.md

@@ -1,186 +1,21 @@
 ZeroTier SDK (beta)
 ======
 
-The ZeroTier SDK offers a microkernel-like networking paradigm for containerized applications and application-specific virtual networking.
+ZeroTier virtual network access embedded directly into applications and games.
 
-The SDK couples the ZeroTier core Ethernet virtualization engine with a user-space TCP/IP stack and a library that intercepts calls to the Posix network API. This allows servers and applications to be used without modification or recompilation. It can be used to run services on virtual networks without elevated privileges, special configuration of the physical host, kernel support, or any other application specific configuration. It's ideal for use with [Docker](http://http://www.docker.com), [LXC](https://linuxcontainers.org), or [Rkt](https://coreos.com/rkt/docs/latest/) to build containerized microservices that automatically connect to a virtual network when deployed. It can also be used on a plain un-containerized Linux system to run applications on virtual networks without elevated privileges or system modification.
+## What does it do?
 
-More discussion can be found in our [original blog announcement](https://www.zerotier.com/blog/?p=490) and [the SDK product page](https://www.zerotier.com/product-netcon.shtml).
+Imagine starting an instance of your application or game and it's automatically a member of a virtual network.
+Imagine being able to do this using APIs you're already familiar with.
 
-The SDK is currently in **BETA** and is suitable for testing and experimentation. Only Linux is supported. Future updates will focus on compatibility, full stack support, and improved performance, and may also port to other OSes.
-
-## Building the SDK
-
-The SDK works on Linux and has been lightly tested on OSX. To build the service host, IP stack, and intercept library, from the base of the ZeroTier One tree run:
-
-    make clean
-    make netcon
-
-This will build a binary called `zerotier-sdk-service` and a library called `libztintercept.so`. It will also build the IP stack as `src/liblwip.so`. 
-
-To enable debug trace statements for Network Containers, use `-D_SDK_DEBUG`
-
-The `zerotier-sdk-service` binary is almost the same as a regular ZeroTier One build except instead of creating virtual network ports using Linux's `/dev/net/tun` interface, it creates instances of a user-space TCP/IP stack for each virtual network and provides RPC access to this stack via a Unix domain socket. The latter is a library that can be loaded with the Linux `LD_PRELOAD` environment variable or by placement into `/etc/ld.so.preload` on a Linux system or container. Additional magic involving nameless Unix domain socket pairs and interprocess socket handoff is used to emulate TCP sockets with extremely low overhead and in a way that's compatible with select, poll, epoll, and other I/O event mechanisms.
-
-The intercept library does nothing unless the `ZT_NC_NETWORK` environment variable is set. If on program launch (or fork) it detects the presence of this environment variable, it will attempt to connect to a running `zerotier-sdk-service` at the specified Unix domain socket path.
-
-Unlike `zerotier-one`, `zerotier-sdk-service` does not need to be run with root privileges and will not modify the host's network configuration in any way. It can be run alongside `zerotier-one` on the same host with no ill effect, though this can be confusing since you'll have to remember the difference between "real" host interfaces (tun/tap) and network containerized endpoints. The latter are completely unknown to the kernel and will not show up in `ifconfig`.
-
-
-## Modes of operation
+## How is it used?
 
 There are generally two ways one might want to use this SDK/service. The first approach is a *compile-time static linking* of our SDK/service directly into your application. With this option you can bundle our entire functionality right into your app with no need to communicate with a service externally, it'll all be handled automatically. The second is a service-oriented approach where our SDK is *dynamically-linked* into your applications upon startup and will communicate to a single ZeroTier service on the host. This can be useful if you've already compiled your applications and can't perform a static linking.
 
 ![Image](docs/img/methods.png)
 
+## How does it work?
 
-## Linking into an application on Mac OSX
-
-Example:
-
-    gcc myapp.c -o myapp libzerotierintercept.so
-    export ZT_NC_NETWORK=/tmp/netcon-test-home/nc_8056c2e21c000001
-
-Start service
-
-    ./zerotier-netcon-service -d -p8000 /tmp/netcon-test-home
-
-Run application
-
-    ./myapp
-
-
-## Starting the Network Containers Service
-
-You don't need Docker or any other container engine to try Network Containers. A simple test can be performed in user space (no root) in your own home directory.
-
-First, build the netcon service and intercept library as described above. Then create a directory to act as a temporary ZeroTier home for your test netcon service instance. You'll need to move the `liblwip.so` binary that was built with `make netcon` into there, since the service must be able to find it there and load it.
-
-    mkdir /tmp/netcon-test-home
-    cp -f ./netcon/liblwip.so /tmp/netcon-test-home
-
-Now you can run the service (no sudo needed, and `-d` tells it to run in the background):
-
-    ./zerotier-netcon-service -d -p8000 /tmp/netcon-test-home
-
-As with ZeroTier One in its normal incarnation, you'll need to join a network for anything interesting to happen:
-
-    ./zerotier-cli -D/tmp/netcon-test-home join 8056c2e21c000001
-
-If you don't want to use [Earth](https://www.zerotier.com/public.shtml) for this test, replace 8056c2e21c000001 with a different network ID. The `-D` option tells `zerotier-cli` not to look in `/var/lib/zerotier-one` for information about a running instance of the ZeroTier system service but instead to look in `/tmp/netcon-test-home`.
-
-Now type:
-
-    ./zerotier-cli -D/tmp/netcon-test-home listnetworks
-
-Try it a few times until you see that you've successfully joined the network and have an IP address. Instead of a *zt#* device, a path to a Unix domain socket will be listed for the network's port.
-
-Now you will want to have ZeroTier One (the normal `zerotier-one` build, not network containers) running somewhere else, such as on another Linux system or VM. Technically you could run it on the *same* Linux system and it wouldn't matter at all, but many people find this intensely confusing until they grasp just what exactly is happening here.
-
-On the other Linux system, join the same network if you haven't already (8056c2e21c000001 if you're using Earth) and wait until you have an IP address. Then try pinging the IP address your netcon instance received. You should see ping replies.
-
-Back on the host that's running `zerotier-sdk-service`, type `ip addr list` or `ifconfig` (ifconfig is technically deprecated so some Linux systems might not have it). Notice that the IP address of the network containers endpoint is not listed and no network device is listed for it either. That's because as far as the Linux kernel is concerned it doesn't exist.
-
-What are you pinging? What is happening here?
-
-The `zerotier-sdk-service` binary has joined a *virtual* network and is running a *virtual* TCP/IP stack entirely in user space. As far as your system is concerned it's just another program exchanging UDP packets with a few other hosts on the Internet and nothing out of the ordinary is happening at all. That's why you never had to type *sudo*. It didn't change anything on the host.
-
-Now you can run an application inside your network container.
-
-    export LD_PRELOAD=`pwd`/libzerotierintercept.so
-    export ZT_NC_NETWORK=/tmp/netcon-test-home/nc_8056c2e21c000001
-    node netcon/httpserver.js
-
-Also note that the "pwd" in LD_PRELOAD assumes you are in the ZeroTier source root and have built netcon there. If not, substitute the full path to *libzerotierintercept.so*. If you want to remove those environment variables later, use "unset LD_PRELOAD" and "unset ZT_NC_NETWORK".
-
-If you don't have node.js installed, an alternative test using python would be:
-
-    python -m SimpleHTTPServer 80
-
-If you are running Python 3, use `-m http.server`.
-
-If all went well a small static HTTP server is now serving up the current directory, but only inside the network container. Going to port 80 on your machine won't work. To reach it, go to the other system where you joined the same network with a conventional ZeroTier instance and try:
-
-    curl http://NETCON.INSTANCE.IP/
-
-Replace *NETCON.INSTANCE.IP* with the IP address that *zerotier-netcon-service* was assigned on the virtual network. (This is the same IP you pinged in your first test.) If everything works, you should get back a copy of ZeroTier One's main README.md file.
-
-## Installing in a Docker container (or any other container engine)
-
-If it's not immediately obvious, installation into a Docker container is easy. Just install `zerotier-sdk-service`, `libztintercept.so`, and `liblwip.so` into the container at an appropriate locations. We suggest putting it all in `/var/lib/zerotier-one` since this is the default ZeroTier home and will eliminate the need to supply a path to any of ZeroTier's services or utilities. Then, in your Docker container entry point script launch the service with *-d* to run it in the background, set the appropriate environment variables as described above, and launch your container's main application.
-
-The only bit of complexity is configuring which virtual network to join. ZeroTier's service automatically joins networks that have `.conf` files in `ZTHOME/networks.d` even if the `.conf` file is empty. So one way of doing this very easily is to add the following commands to your Dockerfile or container entry point script:
-
-    mkdir -p /var/lib/zerotier-one/networks.d
-    touch /var/lib/zerotier-one/networks.d/8056c2e21c000001.conf
-
-Replace 8056c2e21c000001 with the network ID of the network you want your container to automatically join. It's also a good idea in your container's entry point script to add a small loop to wait until the container's instance of ZeroTier generates an identity and comes online. This could be something like:
-
-    /var/lib/zerotier-one/zerotier-netcon-service -d
-    while [ ! -f /var/lib/zerotier-one/identity.secret ]; do
-      sleep 0.1
-    done
-    # zerotier-netcon-service is now running and has generated an identity
-
-(Be sure you don't bundle the identity into the container, otherwise every container will try to be the same device and they will "fight" over the device's address.)
-
-Now each new instance of your container will automatically join the specified network on startup. Authorizing the container on a private network still requires a manual authorization step either via the ZeroTier Central web UI or the API. We're working on some ideas to automate this via bearer token auth or similar since doing this manually or with scripts for large deployments is tedious.
-
-## Tests
-
-For info on testing the SDK, take a look at [docs/testing.md](docs/testing.md)
-
-## Mobile App Embedding
-
-For information on the app-embedding aspect of the SDK check out our [ZeroTier SDK](http://10.6.6.2/ZeroTier/ZeroTierSDK/docs/master/zt_sdk.md) blog post.
-
-## Limitations and Compatibility
-
-The beta version of the SDK **only supports IPv4**. There is no IPv6 support and no support for ICMP (or RAW sockets). That means network-containerizing *ping* won't work.
-
-The virtual TCP/IP stack will respond to *incoming* ICMP ECHO requests, which means that you can ping it from another host on the same ZeroTier virtual network. This is useful for testing.
-
-#### Controlling traffic
-
-**Network Containers are currently all or nothing.** If engaged, the intercept library intercepts all network I/O calls and redirects them through the new path. A network-containerized application cannot communicate over the regular network connection of its host or container or with anything else except other hosts on its ZeroTier virtual LAN. Support for optional "fall-through" to the host IP stack for outgoing connections outside the virtual network and for gateway routes within the virtual network is planned. (It will be optional since in some cases total network isolation might be considered a nice security feature.)
-
-The exception to this rule is if you use a network library in your application that supports the use of a SOCKS5 proxy and if you configure your network library to use the proxy service provided by the ZeroTier service you can disable all other shims and only talk to ZeroTier virtual networks via the proxied connections you specifically set up.
-
-#### Compatibility Test Results
-
-The following applications have been tested and confirmed to work for the beta release:
-
-Fedora 23:
-
-    httpstub.c
-    nginx 1.8.0
-    http 2.4.16, 2.4.17
-    darkhttpd 1.11
-    python 2.7.10 (python -m SimpleHTTPServer)
-    python 3.4.3 (python -m http.server)
-    redis 3.0.4
-    node 6.0.0-pre
-    sshd
-
-CentOS 7:
-
-    httpstub.c
-    nginx 1.6.3
-    httpd 2.4.6 (debug mode -X)
-    darkhttpd 1.11
-    node 4.2.2
-    redis 2.8.19
-    sshd
-
-Ubuntu 14.04.3:
-
-    httpstub.c
-    nginx 1.4.6
-    python 2.7.6 (python -m SimpleHTTPServer)
-    python 3.4.0 (python -m http.server)
-    node 5.2.0
-    redis 2.8.4
-    sshd
-
-It is *likely* to work with other things but there are no guarantees.
+We've built a special background service that pairs the ZeroTier protocol with a user-space [Lightweight IP (lwIP) stack](http://savannah.nongnu.org/projects/lwip/) to create a new way for you to bring your applications onto your virtual network. Check out the [Integrations]() page to learn how to integrate this with your particular application.
 
+For a more in-depth explanation of our technology take a look at our [SDK Primer]()

docs/docker_linux_zt_sdk.md

@@ -69,3 +69,48 @@ At this point, simply run your application as you normally would. It will be aut
 **Additional info**
 If you'd like to know the IP address your service can be reached at on this particular virtual network, use the following:
 `zerotier-cli -D/var/lib/zerotier-one/nc_XXXXXXXXXXXXXXXX listnetworks`
+
+
+
+
+
+
+
+
+## Tests
+
+For info on testing the SDK, take a look at [docs/docker_linux_testing.md](docs/docker_linux_testing.md)
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+## Installing in a Docker container (or any other container engine)
+
+If it's not immediately obvious, installation into a Docker container is easy. Just install `zerotier-sdk-service`, `libztintercept.so`, and `liblwip.so` into the container at an appropriate locations. We suggest putting it all in `/var/lib/zerotier-one` since this is the default ZeroTier home and will eliminate the need to supply a path to any of ZeroTier's services or utilities. Then, in your Docker container entry point script launch the service with *-d* to run it in the background, set the appropriate environment variables as described above, and launch your container's main application.
+
+The only bit of complexity is configuring which virtual network to join. ZeroTier's service automatically joins networks that have `.conf` files in `ZTHOME/networks.d` even if the `.conf` file is empty. So one way of doing this very easily is to add the following commands to your Dockerfile or container entry point script:
+
+    mkdir -p /var/lib/zerotier-one/networks.d
+    touch /var/lib/zerotier-one/networks.d/8056c2e21c000001.conf
+
+Replace 8056c2e21c000001 with the network ID of the network you want your container to automatically join. It's also a good idea in your container's entry point script to add a small loop to wait until the container's instance of ZeroTier generates an identity and comes online. This could be something like:
+
+    /var/lib/zerotier-one/zerotier-netcon-service -d
+    while [ ! -f /var/lib/zerotier-one/identity.secret ]; do
+      sleep 0.1
+    done
+    # zerotier-netcon-service is now running and has generated an identity
+
+(Be sure you don't bundle the identity into the container, otherwise every container will try to be the same device and they will "fight" over the device's address.)
+
+Now each new instance of your container will automatically join the specified network on startup. Authorizing the container on a private network still requires a manual authorization step either via the ZeroTier Central web UI or the API. We're working on some ideas to automate this via bearer token auth or similar since doing this manually or with scripts for large deployments is tedious.

docs/limitations.md

@@ -0,0 +1,15 @@
+Notes / Limitations
+====
+
+## Limitations and Compatibility
+
+The beta version of the SDK **only supports IPv4**. There is no IPv6 support and no support for ICMP (or RAW sockets). That means network-containerizing *ping* won't work.
+
+The virtual TCP/IP stack will respond to *incoming* ICMP ECHO requests, which means that you can ping it from another host on the same ZeroTier virtual network. This is useful for testing.
+
+
+#### Controlling traffic
+
+**Network Containers are currently all or nothing.** If engaged, the intercept library intercepts all network I/O calls and redirects them through the new path. A network-containerized application cannot communicate over the regular network connection of its host or container or with anything else except other hosts on its ZeroTier virtual LAN. Support for optional "fall-through" to the host IP stack for outgoing connections outside the virtual network and for gateway routes within the virtual network is planned. (It will be optional since in some cases total network isolation might be considered a nice security feature.)
+
+The exception to this rule is if you use a network library in your application that supports the use of a SOCKS5 proxy and if you configure your network library to use the proxy service provided by the ZeroTier service you can disable all other shims and only talk to ZeroTier virtual networks via the proxied connections you specifically set up.

docs/linux_zt_sdk.md

@@ -1,11 +1,51 @@
-Docker + ZeroTier SDK
+Linux + ZeroTier SDK
 ====
 
 Welcome!
 
-Imagine a flat, encrypted, no-configuration LAN for all of your Docker containers. 
+Imagine a flat, encrypted, no-configuration LAN for all of your Linux applications.
+
+This short tutorial will show you how to enable ZeroTier functionality for Linux applications using static-linking and dynamic linking methods.
+
+
+
+
+
+
+
+
+
+
+## Building the SDK
+
+To build the service host, IP stack, and intercept library, from the base of the ZeroTier One tree run:
+
+    make clean
+    make netcon
+
+This will build a binary called `zerotier-sdk-service` and a library called `libztintercept.so`. It will also build the IP stack as `src/liblwip.so`. 
+
+To enable debug trace statements for Network Containers, use `-D_SDK_DEBUG`
+
+The `zerotier-sdk-service` binary is almost the same as a regular ZeroTier One build except instead of creating virtual network ports using Linux's `/dev/net/tun` interface, it creates instances of a user-space TCP/IP stack for each virtual network and provides RPC access to this stack via a Unix domain socket. The latter is a library that can be loaded with the Linux `LD_PRELOAD` environment variable or by placement into `/etc/ld.so.preload` on a Linux system or container. Additional magic involving nameless Unix domain socket pairs and interprocess socket handoff is used to emulate TCP sockets with extremely low overhead and in a way that's compatible with select, poll, epoll, and other I/O event mechanisms.
+
+The intercept library does nothing unless the `ZT_NC_NETWORK` environment variable is set. If on program launch (or fork) it detects the presence of this environment variable, it will attempt to connect to a running `zerotier-sdk-service` at the specified Unix domain socket path.
+
+Unlike `zerotier-one`, `zerotier-sdk-service` does not need to be run with root privileges and will not modify the host's network configuration in any way. It can be run alongside `zerotier-one` on the same host with no ill effect, though this can be confusing since you'll have to remember the difference between "real" host interfaces (tun/tap) and network containerized endpoints. The latter are completely unknown to the kernel and will not show up in `ifconfig`.
+
+
+
+
+
+
+
+
+
+
+
+
+
 
-This short tutorial will show you how to enable ZeroTier functionality for your Docker software container with little to no configuration. In this example we aim to build a Docker container with ZeroTier’s Network Container service bundled right in so that it’s effortless to hook any number of your services in the container up to your virtual network.
 
 **Step 1: Build the ZeroTier service binaries**
 
@@ -69,3 +109,149 @@ At this point, simply run your application as you normally would. It will be aut
 **Additional info**
 If you'd like to know the IP address your service can be reached at on this particular virtual network, use the following:
 `zerotier-cli -D/var/lib/zerotier-one/nc_XXXXXXXXXXXXXXXX listnetworks`
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+## Starting the Network Containers Service
+
+You don't need Docker or any other container engine to try Network Containers. A simple test can be performed in user space (no root) in your own home directory.
+
+First, build the netcon service and intercept library as described above. Then create a directory to act as a temporary ZeroTier home for your test netcon service instance. You'll need to move the `liblwip.so` binary that was built with `make netcon` into there, since the service must be able to find it there and load it.
+
+    mkdir /tmp/netcon-test-home
+    cp -f ./netcon/liblwip.so /tmp/netcon-test-home
+
+Now you can run the service (no sudo needed, and `-d` tells it to run in the background):
+
+    ./zerotier-netcon-service -d -p8000 /tmp/netcon-test-home
+
+As with ZeroTier One in its normal incarnation, you'll need to join a network for anything interesting to happen:
+
+    ./zerotier-cli -D/tmp/netcon-test-home join 8056c2e21c000001
+
+If you don't want to use [Earth](https://www.zerotier.com/public.shtml) for this test, replace 8056c2e21c000001 with a different network ID. The `-D` option tells `zerotier-cli` not to look in `/var/lib/zerotier-one` for information about a running instance of the ZeroTier system service but instead to look in `/tmp/netcon-test-home`.
+
+Now type:
+
+    ./zerotier-cli -D/tmp/netcon-test-home listnetworks
+
+Try it a few times until you see that you've successfully joined the network and have an IP address. Instead of a *zt#* device, a path to a Unix domain socket will be listed for the network's port.
+
+Now you will want to have ZeroTier One (the normal `zerotier-one` build, not network containers) running somewhere else, such as on another Linux system or VM. Technically you could run it on the *same* Linux system and it wouldn't matter at all, but many people find this intensely confusing until they grasp just what exactly is happening here.
+
+On the other Linux system, join the same network if you haven't already (8056c2e21c000001 if you're using Earth) and wait until you have an IP address. Then try pinging the IP address your netcon instance received. You should see ping replies.
+
+Back on the host that's running `zerotier-sdk-service`, type `ip addr list` or `ifconfig` (ifconfig is technically deprecated so some Linux systems might not have it). Notice that the IP address of the network containers endpoint is not listed and no network device is listed for it either. That's because as far as the Linux kernel is concerned it doesn't exist.
+
+What are you pinging? What is happening here?
+
+The `zerotier-sdk-service` binary has joined a *virtual* network and is running a *virtual* TCP/IP stack entirely in user space. As far as your system is concerned it's just another program exchanging UDP packets with a few other hosts on the Internet and nothing out of the ordinary is happening at all. That's why you never had to type *sudo*. It didn't change anything on the host.
+
+Now you can run an application inside your network container.
+
+    export LD_PRELOAD=`pwd`/libzerotierintercept.so
+    export ZT_NC_NETWORK=/tmp/netcon-test-home/nc_8056c2e21c000001
+    node netcon/httpserver.js
+
+Also note that the "pwd" in LD_PRELOAD assumes you are in the ZeroTier source root and have built netcon there. If not, substitute the full path to *libzerotierintercept.so*. If you want to remove those environment variables later, use "unset LD_PRELOAD" and "unset ZT_NC_NETWORK".
+
+If you don't have node.js installed, an alternative test using python would be:
+
+    python -m SimpleHTTPServer 80
+
+If you are running Python 3, use `-m http.server`.
+
+If all went well a small static HTTP server is now serving up the current directory, but only inside the network container. Going to port 80 on your machine won't work. To reach it, go to the other system where you joined the same network with a conventional ZeroTier instance and try:
+
+    curl http://NETCON.INSTANCE.IP/
+
+Replace *NETCON.INSTANCE.IP* with the IP address that *zerotier-netcon-service* was assigned on the virtual network. (This is the same IP you pinged in your first test.) If everything works, you should get back a copy of ZeroTier One's main README.md file.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+#### Compatibility Test Results
+
+The following applications have been tested and confirmed to work for the beta release:
+
+Fedora 23:
+
+    httpstub.c
+    nginx 1.8.0
+    http 2.4.16, 2.4.17
+    darkhttpd 1.11
+    python 2.7.10 (python -m SimpleHTTPServer)
+    python 3.4.3 (python -m http.server)
+    redis 3.0.4
+    node 6.0.0-pre
+    sshd
+
+CentOS 7:
+
+    httpstub.c
+    nginx 1.6.3
+    httpd 2.4.6 (debug mode -X)
+    darkhttpd 1.11
+    node 4.2.2
+    redis 2.8.19
+    sshd
+
+Ubuntu 14.04.3:
+
+    httpstub.c
+    nginx 1.4.6
+    python 2.7.6 (python -m SimpleHTTPServer)
+    python 3.4.0 (python -m http.server)
+    node 5.2.0
+    redis 2.8.4
+    sshd
+
+It is *likely* to work with other things but there are no guarantees.

docs/osx_zt_sdk.md

@@ -3,7 +3,7 @@ OSX + ZeroTier SDK
 
 Welcome!
 
-Imagine a flat, encrypted, no-configuration LAN for all of the instances of your iOS app. 
+Imagine a flat, encrypted, no-configuration LAN for all of the instances of your OSX app. 
 
 This short tutorial will show you how to enable ZeroTier functionality for your iOS app with little to no code modification. Check out our [ZeroTier SDK](https://www.zerotier.com/blog) page for more info on how the integration works and [Shim Techniques](https://www.zerotier.com/blog) for a discussion of shims available for your app/technology.
 
@@ -76,3 +76,26 @@ outputStream!.setProperty(myDict, forKey: NSStreamSOCKSProxyConfigurationKey)
 // END proxy configuration
 ```
 
+
+
+
+
+
+
+
+
+## Linking into an application on Mac OSX
+
+Example:
+
+    gcc myapp.c -o myapp libztintercept.so
+    export ZT_NC_NETWORK=/tmp/netcon-test-home/nc_8056c2e21c000001
+
+Start service
+
+    ./zerotier-netcon-service -d -p8000 /tmp/netcon-test-home
+
+Run application
+
+    ./myapp
+

docs/zt_sdk.md

@@ -1,5 +1,15 @@
 # ZeroTier SDK
 
+
+The ZeroTier SDK (formerly known as Network Containers) offers a microkernel-like networking paradigm for containerized applications and application-specific virtual networking.
+
+The SDK couples the ZeroTier core Ethernet virtualization engine with a user-space TCP/IP stack and a library that intercepts calls to the Posix network API. This allows servers and applications to be used without modification or recompilation. It can be used to run services on virtual networks without elevated privileges, special configuration of the physical host, kernel support, or any other application specific configuration. It's ideal for use with [Docker](http://http://www.docker.com), [LXC](https://linuxcontainers.org), or [Rkt](https://coreos.com/rkt/docs/latest/) to build containerized microservices that automatically connect to a virtual network when deployed. It can also be used on a plain un-containerized Linux system to run applications on virtual networks without elevated privileges or system modification.
+
+More discussion can be found in our [original blog announcement](https://www.zerotier.com/blog/?p=490) and [the SDK product page](https://www.zerotier.com/product-netcon.shtml).
+
+The SDK is currently in **BETA** and is suitable for testing and experimentation. Linux, Android, OSX, and iOS are supported. Future updates will focus on compatibility, full stack support, and improved performance, and may also port to other OSes.
+
+
 ## What can it do?
 True P2P injected right into your app with no code changes! A ZeroTier-enabled app. 
 (formerly known as Network Containers)

integrations/Apple/ZeroTierSDK_Apple/ZeroTierSDK_Apple.xcodeproj/project.pbxproj

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integrations/Apple/ZeroTierSDK_Apple/ZeroTierSDK_Apple.xcodeproj/xcuserdata/Joseph.xcuserdatad/xcschemes/ZeroTierSDK_Unity3D_OSX.xcscheme

@@ -0,0 +1,80 @@
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+               ReferencedContainer = "container:ZeroTierSDK_iOS.xcodeproj">
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+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
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+            BlueprintName = "ZeroTierSDK_Unity3D_OSX"
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integrations/Apple/ZeroTierSDK_Apple/ZeroTierSDK_Apple.xcodeproj/xcuserdata/Joseph.xcuserdatad/xcschemes/ZeroTierSDK_Unity3D_iOS.xcscheme

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+            buildForAnalyzing = "YES">
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+               BlueprintIdentifier = "7C0FEDE31D12039C007A4E66"
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+               BlueprintName = "ZeroTierSDK_Unity3D_iOS"
+               ReferencedContainer = "container:ZeroTierSDK_iOS.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
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+   </BuildAction>
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+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
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+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
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+      allowLocationSimulation = "YES">
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+            BlueprintName = "ZeroTierSDK_Unity3D_iOS"
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integrations/Apple/ZeroTierSDK_Apple/ZeroTierSDK_Apple.xcodeproj/xcuserdata/Joseph.xcuserdatad/xcschemes/xcschememanagement.plist

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+			<integer>2</integer>
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+		<dict>
+			<key>orderHint</key>
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integrations/Apple/ZeroTierSDK_Apple/ZeroTierSDK_OSX/Info.plist

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>FMWK</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>$(CURRENT_PROJECT_VERSION)</string>
+	<key>NSHumanReadableCopyright</key>
+	<string>Copyright © 2016 ZeroTier Inc. All rights reserved.</string>
+	<key>NSPrincipalClass</key>
+	<string></string>
+</dict>
+</plist>

integrations/Apple/ZeroTierSDK_Apple/ZeroTierSDK_OSX/ZeroTierSDK_OSX.h

@@ -0,0 +1,19 @@
+//
+//  ZeroTierSDK_OSX.h
+//  ZeroTierSDK_OSX
+//
+//  Created by Joseph Henry on 6/15/16.
+//  Copyright © 2016 ZeroTier Inc. All rights reserved.
+//
+
+#import <Cocoa/Cocoa.h>
+
+//! Project version number for ZeroTierSDK_OSX.
+FOUNDATION_EXPORT double ZeroTierSDK_OSXVersionNumber;
+
+//! Project version string for ZeroTierSDK_OSX.
+FOUNDATION_EXPORT const unsigned char ZeroTierSDK_OSXVersionString[];
+
+// In this header, you should import all the public headers of your framework using statements like #import <ZeroTierSDK_OSX/PublicHeader.h>
+
+

integrations/Apple/ZeroTierSDK_Apple/ZeroTierSDK_Unity3D_OSX/Info.plist

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>BNDL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>NSHumanReadableCopyright</key>
+	<string>Copyright © 2016 ZeroTier Inc. All rights reserved.</string>
+	<key>NSPrincipalClass</key>
+	<string></string>
+</dict>
+</plist>

integrations/Apple/ZeroTierSDK_Apple/ZeroTierSDK_Unity3D_iOS/Info.plist

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>BNDL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>NSHumanReadableCopyright</key>
+	<string>Copyright © 2016 ZeroTier Inc. All rights reserved.</string>
+	<key>NSPrincipalClass</key>
+	<string></string>
+</dict>
+</plist>

integrations/README.md

@@ -25,3 +25,6 @@ Also stop by our [community section](https://www.zerotier.com/community/) for mo
 ### Android
  - [Embedding within an app](../docs/android_zt_sdk.md) 
  - [Unity 3D plugin](../docs/unity3d_android_zt_sdk.md) 
+
+### Windows
+ - Anyone want to volunteer?

integrations/_attic/OSX_new/ZeroTierSDK_OSX/ZeroTierSDK_OSX.xcodeproj/project.pbxproj

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+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = macosx;
+				VERSIONING_SYSTEM = "apple-generic";
+				VERSION_INFO_PREFIX = "";
+			};
+			name = Release;
+		};
+		7C0FEDD11D1202FD007A4E66 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				COMBINE_HIDPI_IMAGES = YES;
+				DEFINES_MODULE = YES;
+				DYLIB_COMPATIBILITY_VERSION = 1;
+				DYLIB_CURRENT_VERSION = 1;
+				DYLIB_INSTALL_NAME_BASE = "@rpath";
+				FRAMEWORK_VERSION = A;
+				INFOPLIST_FILE = ZeroTierSDK_OSX/Info.plist;
+				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks @loader_path/Frameworks";
+				PRODUCT_BUNDLE_IDENTIFIER = "zerotier.ZeroTierSDK-OSX";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SKIP_INSTALL = YES;
+			};
+			name = Debug;
+		};
+		7C0FEDD21D1202FD007A4E66 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				COMBINE_HIDPI_IMAGES = YES;
+				DEFINES_MODULE = YES;
+				DYLIB_COMPATIBILITY_VERSION = 1;
+				DYLIB_CURRENT_VERSION = 1;
+				DYLIB_INSTALL_NAME_BASE = "@rpath";
+				FRAMEWORK_VERSION = A;
+				INFOPLIST_FILE = ZeroTierSDK_OSX/Info.plist;
+				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks @loader_path/Frameworks";
+				PRODUCT_BUNDLE_IDENTIFIER = "zerotier.ZeroTierSDK-OSX";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SKIP_INSTALL = YES;
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		7C0FEDC21D1202FD007A4E66 /* Build configuration list for PBXProject "ZeroTierSDK_OSX" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7C0FEDCE1D1202FD007A4E66 /* Debug */,
+				7C0FEDCF1D1202FD007A4E66 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		7C0FEDD01D1202FD007A4E66 /* Build configuration list for PBXNativeTarget "ZeroTierSDK_OSX" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7C0FEDD11D1202FD007A4E66 /* Debug */,
+				7C0FEDD21D1202FD007A4E66 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 7C0FEDBF1D1202FD007A4E66 /* Project object */;
+}

integrations/_attic/OSX_new/ZeroTierSDK_OSX/ZeroTierSDK_OSX.xcodeproj/project.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:ZeroTierSDK_OSX.xcodeproj">
+   </FileRef>
+</Workspace>

integrations/_attic/OSX_new/ZeroTierSDK_OSX/ZeroTierSDK_OSX.xcodeproj/xcuserdata/Joseph.xcuserdatad/xcschemes/ZeroTierSDK_OSX.xcscheme

@@ -0,0 +1,80 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0730"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "7C0FEDC71D1202FD007A4E66"
+               BuildableName = "ZeroTierSDK_OSX.framework"
+               BlueprintName = "ZeroTierSDK_OSX"
+               ReferencedContainer = "container:ZeroTierSDK_OSX.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+      </Testables>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "7C0FEDC71D1202FD007A4E66"
+            BuildableName = "ZeroTierSDK_OSX.framework"
+            BlueprintName = "ZeroTierSDK_OSX"
+            ReferencedContainer = "container:ZeroTierSDK_OSX.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "7C0FEDC71D1202FD007A4E66"
+            BuildableName = "ZeroTierSDK_OSX.framework"
+            BlueprintName = "ZeroTierSDK_OSX"
+            ReferencedContainer = "container:ZeroTierSDK_OSX.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

integrations/_attic/OSX_new/ZeroTierSDK_OSX/ZeroTierSDK_OSX.xcodeproj/xcuserdata/Joseph.xcuserdatad/xcschemes/xcschememanagement.plist

@@ -4,7 +4,7 @@
 <dict>
 	<key>SchemeUserState</key>
 	<dict>
-		<key>ZeroTierSDK_iOS.xcscheme</key>
+		<key>ZeroTierSDK_OSX.xcscheme</key>
 		<dict>
 			<key>orderHint</key>
 			<integer>0</integer>
@@ -12,7 +12,7 @@
 	</dict>
 	<key>SuppressBuildableAutocreation</key>
 	<dict>
-		<key>7C936A331D11EBEA00470058</key>
+		<key>7C0FEDC71D1202FD007A4E66</key>
 		<dict>
 			<key>primary</key>
 			<true/>

integrations/_attic/OSX_new/ZeroTierSDK_OSX/ZeroTierSDK_OSX/Info.plist

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>FMWK</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>$(CURRENT_PROJECT_VERSION)</string>
+	<key>NSHumanReadableCopyright</key>
+	<string>Copyright © 2016 ZeroTier Inc. All rights reserved.</string>
+	<key>NSPrincipalClass</key>
+	<string></string>
+</dict>
+</plist>

integrations/_attic/OSX_new/ZeroTierSDK_OSX/ZeroTierSDK_OSX/ZeroTierSDK_OSX.h

@@ -0,0 +1,19 @@
+//
+//  ZeroTierSDK_OSX.h
+//  ZeroTierSDK_OSX
+//
+//  Created by Joseph Henry on 6/15/16.
+//  Copyright © 2016 ZeroTier Inc. All rights reserved.
+//
+
+#import <Cocoa/Cocoa.h>
+
+//! Project version number for ZeroTierSDK_OSX.
+FOUNDATION_EXPORT double ZeroTierSDK_OSXVersionNumber;
+
+//! Project version string for ZeroTierSDK_OSX.
+FOUNDATION_EXPORT const unsigned char ZeroTierSDK_OSXVersionString[];
+
+// In this header, you should import all the public headers of your framework using statements like #import <ZeroTierSDK_OSX/PublicHeader.h>
+
+