zerotier: add initial package

Signed-off-by: Moritz Warning <moritzwarning@web.de>

net/zerotier/patches/0001-Fix-for-running-under-MUSL-libc-e.g.-Alpine-Linux.patch

@@ -0,0 +1,44 @@
+From 830250759cd4c14ca2ae5ddf24f0a0427f258622 Mon Sep 17 00:00:00 2001
+From: Adam Ierymenko <adam.ierymenko@gmail.com>
+Date: Tue, 26 Jul 2016 16:36:20 -0700
+Subject: [PATCH 1/2] Fix for running under MUSL libc (e.g. Alpine Linux)
+
+---
+ osdep/Thread.hpp | 7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/osdep/Thread.hpp b/osdep/Thread.hpp
+index 7fb38d8..4f90dc0 100644
+--- a/osdep/Thread.hpp
++++ b/osdep/Thread.hpp
+@@ -125,6 +125,10 @@ public:
+ 		throw()
+ 	{
+ 		memset(&_tid,0,sizeof(_tid));
++		pthread_attr_init(&_tattr);
++#ifdef __LINUX__
++		pthread_attr_setstacksize(&_tattr,8388608); // for MUSL libc and others, has no effect in normal glibc environments
++#endif
+ 		_started = false;
+ 	}
+ 
+@@ -157,7 +161,7 @@ public:
+ 	{
+ 		Thread t;
+ 		t._started = true;
+-		if (pthread_create(&t._tid,(const pthread_attr_t *)0,&___zt_threadMain<C>,instance))
++		if (pthread_create(&t._tid,&t._tattr,&___zt_threadMain<C>,instance))
+ 			throw std::runtime_error("pthread_create() failed, unable to create thread");
+ 		return t;
+ 	}
+@@ -184,6 +188,7 @@ public:
+ 
+ private:
+ 	pthread_t _tid;
++	pthread_attr_t _tattr;
+ 	volatile bool _started;
+ };
+ 
+-- 
+2.9.0
+

net/zerotier/patches/0002-fix-build.patch

@@ -0,0 +1,36 @@
+From 333bbabc6dfad0553fb63d560ab6442a50cc9e52 Mon Sep 17 00:00:00 2001
+From: Moritz Warning <moritzwarning@web.de>
+Date: Fri, 22 Jul 2016 23:27:31 +0200
+Subject: [PATCH 2/2] fix build
+
+---
+ make-linux.mk | 30 +++++++++++++++---------------
+ 1 file changed, 15 insertions(+), 15 deletions(-)
+
+Index: ZeroTierOne-1.1.14/make-linux.mk
+===================================================================
+--- ZeroTierOne-1.1.14.orig/make-linux.mk
++++ ZeroTierOne-1.1.14/make-linux.mk
+@@ -39,19 +39,19 @@ include objects.mk
+ 
+ # On Linux we auto-detect the presence of some libraries and if present we
+ # link against the system version. This works with our package build images.
+-ifeq ($(wildcard /usr/include/lz4.h),)
++ifeq ($(wildcard $(STAGING_DIR)/usr/include/lz4.h),)
+ 	OBJS+=ext/lz4/lz4.o
+ else
+ 	LDLIBS+=-llz4
+ 	DEFS+=-DZT_USE_SYSTEM_LZ4
+ endif
+-ifeq ($(wildcard /usr/include/http_parser.h),)
++ifeq ($(wildcard $(STAGING_DIR)/usr/include/http_parser.h),)
+ 	OBJS+=ext/http-parser/http_parser.o
+ else
+ 	LDLIBS+=-lhttp_parser
+ 	DEFS+=-DZT_USE_SYSTEM_HTTP_PARSER
+ endif
+-ifeq ($(wildcard /usr/include/json-parser/json.h),)
++ifeq ($(wildcard $(STAGING_DIR)/usr/include/json-parser/json.h),)
+ 	OBJS+=ext/json-parser/json.o
+ else
+ 	LDLIBS+=-ljsonparser

net/zerotier/patches/0003-workaround_to_avoid_seg_faults.patch

@@ -0,0 +1,27 @@
+From 21f4958bd48cae59b478b1b3445e00fa4fb18991 Mon Sep 17 00:00:00 2001
+From: muebau <muebau@gmail.com>
+Date: Fri, 5 Aug 2016 19:22:45 +0200
+Subject: [PATCH] OpenWRT workaround to avoid seg faults
+
+---
+ service/OneService.cpp | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/service/OneService.cpp b/service/OneService.cpp
+index 13820f5..9ba3238 100644
+--- a/service/OneService.cpp
++++ b/service/OneService.cpp
+@@ -862,8 +862,8 @@ public:
+ 			}
+ 
+ 			// Start two background threads to handle expensive ops out of line
+-			Thread::start(_node);
+-			Thread::start(_node);
++			//Thread::start(_node);
++			//Thread::start(_node);
+ 
+ 			_nextBackgroundTaskDeadline = 0;
+ 			uint64_t clockShouldBe = OSUtils::now();
+-- 
+2.7.4
+

net/zerotier/patches/0005-use-internal-miniupnpc-and-natpmp

@@ -0,0 +1,35 @@
+Index: ZeroTierOne-1.1.14/make-linux.mk
+===================================================================
+--- ZeroTierOne-1.1.14.orig/make-linux.mk
++++ ZeroTierOne-1.1.14/make-linux.mk
+@@ -64,7 +64,7 @@ ifeq ($(ZT_USE_MINIUPNPC),1)
+ 	DEFS+=-DZT_USE_MINIUPNPC
+ 
+ 	# Auto-detect libminiupnpc at least v2.0
+-	MINIUPNPC_IS_NEW_ENOUGH=$(shell grep -sqr '.*define.*MINIUPNPC_VERSION.*"2.."' /usr/include/miniupnpc/miniupnpc.h && echo 1)
++	MINIUPNPC_IS_NEW_ENOUGH=$(shell grep -sqr '.*define.*MINIUPNPC_VERSION.*"2.."' $(STAGING_DIR)/usr/include/miniupnpc/miniupnpc.h && echo 1)
+ 	ifeq ($(MINIUPNPC_IS_NEW_ENOUGH),1)
+ 		DEFS+=-DZT_USE_SYSTEM_MINIUPNPC
+ 		LDLIBS+=-lminiupnpc
+@@ -74,7 +74,7 @@ ifeq ($(ZT_USE_MINIUPNPC),1)
+ 	endif
+ 
+ 	# Auto-detect libnatpmp
+-	ifeq ($(wildcard /usr/include/natpmp.h),)
++	ifeq ($(wildcard $(STAGING_DIR)/usr/include/natpmp.h),)
+ 		OBJS+=ext/libnatpmp/natpmp.o ext/libnatpmp/getgateway.o
+ 	else
+ 		LDLIBS+=-lnatpmp
+Index: ZeroTierOne-1.1.14/osdep/PortMapper.cpp
+===================================================================
+--- ZeroTierOne-1.1.14.orig/osdep/PortMapper.cpp
++++ ZeroTierOne-1.1.14/osdep/PortMapper.cpp
+@@ -180,7 +180,7 @@ public:
+ 				struct IGDdatas data;
+ 
+ 				int upnpError = 0;
+-				UPNPDev *devlist = upnpDiscoverAll(5000,(const char *)0,(const char *)0,0,0,2,&upnpError);
++				UPNPDev *devlist = upnpDiscoverAll(5000,(const char *)0,(const char *)0,0,0,&upnpError);
+ 				if (devlist) {
+ 
+ #ifdef ZT_PORTMAPPER_TRACE