Turns out that node/ likely has no business with or need for the system IP routing table. So shelve that code for now.

10 files changed, 1192 insertions, 0 deletions

diff --git a/attic/rtbl/BSDRoutingTable.cpp b/attic/rtbl/BSDRoutingTable.cpp
new file mode 100644
index 00000000..6d44c3ec
--- /dev/null
+++ b/attic/rtbl/BSDRoutingTable.cpp
@@ -0,0 +1,331 @@
+/*
+ * ZeroTier One - Network Virtualization Everywhere
+ * Copyright (C) 2011-2015  ZeroTier, Inc.
+ *
+ * This program 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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, see <http://www.gnu.org/licenses/>.
+ *
+ * --
+ *
+ * ZeroTier may be used and distributed under the terms of the GPLv3, which
+ * are available at: http://www.gnu.org/licenses/gpl-3.0.html
+ *
+ * If you would like to embed ZeroTier into a commercial application or
+ * redistribute it in a modified binary form, please contact ZeroTier Networks
+ * LLC. Start here: http://www.zerotier.com/
+ */
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <net/route.h>
+#include <net/if.h>
+#include <net/if_dl.h>
+#include <ifaddrs.h>
+
+#include <algorithm>
+#include <utility>
+
+#include "../node/Constants.hpp"
+#include "BSDRoutingTable.hpp"
+
+// All I wanted was the bloody rounting table. I didn't expect the Spanish inquisition.
+
+#define ZT_BSD_ROUTE_CMD "/sbin/route"
+
+namespace ZeroTier {
+
+BSDRoutingTable::BSDRoutingTable()
+{
+}
+
+BSDRoutingTable::~BSDRoutingTable()
+{
+}
+
+std::vector<RoutingTable::Entry> BSDRoutingTable::get(bool includeLinkLocal,bool includeLoopback) const
+{
+	std::vector<RoutingTable::Entry> entries;
+	int mib[6];
+	size_t needed;
+
+	mib[0] = CTL_NET;
+	mib[1] = PF_ROUTE;
+	mib[2] = 0;
+	mib[3] = 0;
+	mib[4] = NET_RT_DUMP;
+	mib[5] = 0;
+	if (!sysctl(mib,6,NULL,&needed,NULL,0)) {
+		if (needed <= 0)
+			return entries;
+
+		char *buf = (char *)::malloc(needed);
+		if (buf) {
+			if (!sysctl(mib,6,buf,&needed,NULL,0)) {
+		    struct rt_msghdr *rtm;
+				for(char *next=buf,*end=buf+needed;next<end;) {
+					rtm = (struct rt_msghdr *)next;
+					char *saptr = (char *)(rtm + 1);
+					char *saend = next + rtm->rtm_msglen;
+
+					if (((rtm->rtm_flags & RTF_LLINFO) == 0)&&((rtm->rtm_flags & RTF_HOST) == 0)&&((rtm->rtm_flags & RTF_UP) != 0)&&((rtm->rtm_flags & RTF_MULTICAST) == 0)) {
+						RoutingTable::Entry e;
+						e.deviceIndex = -9999; // unset
+
+						int which = 0;
+						while (saptr < saend) {
+							struct sockaddr *sa = (struct sockaddr *)saptr;
+							unsigned int salen = sa->sa_len;
+							if (!salen)
+								break;
+
+							// Skip missing fields in rtm_addrs bit field
+							while ((rtm->rtm_addrs & 1) == 0) {
+								rtm->rtm_addrs >>= 1;
+								++which;
+								if (which > 6)
+									break;
+							}
+							if (which > 6)
+								break;
+
+							rtm->rtm_addrs >>= 1;
+							switch(which++) {
+								case 0:
+									//printf("RTA_DST\n");
+									if (sa->sa_family == AF_INET6) {
+										struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sa;
+										// Nobody expects the Spanish inquisition!
+										if ((sin6->sin6_addr.s6_addr[0] == 0xfe)&&((sin6->sin6_addr.s6_addr[1] & 0xc0) == 0x80)) {
+											// Our chief weapon is... in-band signaling!
+											// Seriously who in the living fuck thought this was a good idea and
+											// then had the sadistic idea to not document it anywhere? Of course it's
+											// not like there is any documentation on BSD sysctls anyway.
+											unsigned int interfaceIndex = ((((unsigned int)sin6->sin6_addr.s6_addr[2]) << 8) & 0xff) | (((unsigned int)sin6->sin6_addr.s6_addr[3]) & 0xff);
+											sin6->sin6_addr.s6_addr[2] = 0;
+											sin6->sin6_addr.s6_addr[3] = 0;
+											if (!sin6->sin6_scope_id)
+												sin6->sin6_scope_id = interfaceIndex;
+										}
+									}
+									e.destination.set(sa);
+									break;
+								case 1:
+									//printf("RTA_GATEWAY\n");
+									switch(sa->sa_family) {
+										case AF_LINK:
+											e.deviceIndex = (int)((const struct sockaddr_dl *)sa)->sdl_index;
+											break;
+										case AF_INET:
+										case AF_INET6:
+											e.gateway.set(sa);
+											break;
+									}
+									break;
+								case 2: {
+									if (e.destination.isV6()) {
+										salen = sizeof(struct sockaddr_in6); // Confess!
+										unsigned int bits = 0;
+										for(int i=0;i<16;++i) {
+											unsigned char c = (unsigned char)((const struct sockaddr_in6 *)sa)->sin6_addr.s6_addr[i];
+											if (c == 0xff)
+												bits += 8;
+											else break;
+											/* must they be multiples of 8? Most of the BSD source I can find says yes..?
+											else {
+												while ((c & 0x80) == 0x80) {
+													++bits;
+													c <<= 1;
+												}
+												break;
+											}
+											*/
+										}
+										e.destination.setPort(bits);
+									} else {
+										salen = sizeof(struct sockaddr_in); // Confess!
+										e.destination.setPort((unsigned int)Utils::countBits((uint32_t)((const struct sockaddr_in *)sa)->sin_addr.s_addr));
+									}
+									//printf("RTA_NETMASK\n");
+								}	break;
+								/*
+								case 3:
+									//printf("RTA_GENMASK\n");
+									break;
+								case 4:
+									//printf("RTA_IFP\n");
+									break;
+								case 5:
+									//printf("RTA_IFA\n");
+									break;
+								case 6:
+									//printf("RTA_AUTHOR\n");
+									break;
+								*/
+							}
+
+							saptr += salen;
+						}
+
+						e.metric = (int)rtm->rtm_rmx.rmx_hopcount;
+						if (e.metric < 0)
+							e.metric = 0;
+
+						if (((includeLinkLocal)||(!e.destination.isLinkLocal()))&&((includeLoopback)||((!e.destination.isLoopback())&&(!e.gateway.isLoopback()))))
+							entries.push_back(e);
+					}
+
+					next = saend;
+				}
+			}
+
+			::free(buf);
+		}
+	}
+
+	for(std::vector<ZeroTier::RoutingTable::Entry>::iterator e1(entries.begin());e1!=entries.end();++e1) {
+		if ((!e1->device[0])&&(e1->deviceIndex >= 0))
+			if_indextoname(e1->deviceIndex,e1->device);
+	}
+	for(std::vector<ZeroTier::RoutingTable::Entry>::iterator e1(entries.begin());e1!=entries.end();++e1) {
+		if ((!e1->device[0])&&(e1->gateway)) {
+			int bestMetric = 9999999;
+			for(std::vector<ZeroTier::RoutingTable::Entry>::iterator e2(entries.begin());e2!=entries.end();++e2) {
+				if ((e1->gateway.within(e2->destination))&&(e2->metric <= bestMetric)) {
+					bestMetric = e2->metric;
+					Utils::scopy(e1->device,sizeof(e1->device),e2->device);
+				}
+			}
+		}
+	}
+
+	std::sort(entries.begin(),entries.end());
+
+	return entries;
+}
+
+RoutingTable::Entry BSDRoutingTable::set(const InetAddress &destination,const InetAddress &gateway,const char *device,int metric)
+{
+	if ((!gateway)&&((!device)||(!device[0])))
+		return RoutingTable::Entry();
+
+	std::vector<RoutingTable::Entry> rtab(get(true,true));
+
+	for(std::vector<RoutingTable::Entry>::iterator e(rtab.begin());e!=rtab.end();++e) {
+		if (e->destination == destination) {
+			if (((!device)||(!device[0]))||(!strcmp(device,e->device))) {
+				long p = (long)fork();
+				if (p > 0) {
+					int exitcode = -1;
+					::waitpid(p,&exitcode,0);
+				} else if (p == 0) {
+					::close(STDOUT_FILENO);
+					::close(STDERR_FILENO);
+					::execl(ZT_BSD_ROUTE_CMD,ZT_BSD_ROUTE_CMD,"delete",(destination.isV6() ? "-inet6" : "-inet"),destination.toString().c_str(),(const char *)0);
+					::_exit(-1);
+				}
+			}
+		}
+	}
+
+	if (metric < 0)
+		return RoutingTable::Entry();
+
+	{
+		char hcstr[64];
+		Utils::snprintf(hcstr,sizeof(hcstr),"%d",metric);
+		long p = (long)fork();
+		if (p > 0) {
+			int exitcode = -1;
+			::waitpid(p,&exitcode,0);
+		} else if (p == 0) {
+			::close(STDOUT_FILENO);
+			::close(STDERR_FILENO);
+			if (gateway) {
+				::execl(ZT_BSD_ROUTE_CMD,ZT_BSD_ROUTE_CMD,"add",(destination.isV6() ? "-inet6" : "-inet"),destination.toString().c_str(),gateway.toIpString().c_str(),"-hopcount",hcstr,(const char *)0);
+			} else if ((device)&&(device[0])) {
+				::execl(ZT_BSD_ROUTE_CMD,ZT_BSD_ROUTE_CMD,"add",(destination.isV6() ? "-inet6" : "-inet"),destination.toString().c_str(),"-interface",device,"-hopcount",hcstr,(const char *)0);
+			}
+			::_exit(-1);
+		}
+	}
+
+	rtab = get(true,true);
+	std::vector<RoutingTable::Entry>::iterator bestEntry(rtab.end());
+	for(std::vector<RoutingTable::Entry>::iterator e(rtab.begin());e!=rtab.end();++e) {
+		if ((e->destination == destination)&&(e->gateway.ipsEqual(gateway))) {
+			if ((device)&&(device[0])) {
+				if (!strcmp(device,e->device)) {
+					if (metric == e->metric)
+						bestEntry = e;
+				}
+			}
+			if (bestEntry == rtab.end())
+				bestEntry = e;
+		}
+	}
+	if (bestEntry != rtab.end())
+		return *bestEntry;
+
+	return RoutingTable::Entry();
+}
+
+} // namespace ZeroTier
+
+// Enable and build to test routing table interface
+#if 0
+using namespace ZeroTier;
+int main(int argc,char **argv)
+{
+	BSDRoutingTable rt;
+
+	printf("<destination> <gateway> <interface> <metric>\n");
+	std::vector<RoutingTable::Entry> ents(rt.get());
+	for(std::vector<RoutingTable::Entry>::iterator e(ents.begin());e!=ents.end();++e)
+		printf("%s\n",e->toString().c_str());
+	printf("\n");
+
+	printf("adding 1.1.1.0 and 2.2.2.0...\n");
+	rt.set(InetAddress("1.1.1.0",24),InetAddress("1.2.3.4",0),(const char *)0,1);
+	rt.set(InetAddress("2.2.2.0",24),InetAddress(),"en0",1);
+	printf("\n");
+
+	printf("<destination> <gateway> <interface> <metric>\n");
+	ents = rt.get();
+	for(std::vector<RoutingTable::Entry>::iterator e(ents.begin());e!=ents.end();++e)
+		printf("%s\n",e->toString().c_str());
+	printf("\n");
+
+	printf("deleting 1.1.1.0 and 2.2.2.0...\n");
+	rt.set(InetAddress("1.1.1.0",24),InetAddress("1.2.3.4",0),(const char *)0,-1);
+	rt.set(InetAddress("2.2.2.0",24),InetAddress(),"en0",-1);
+	printf("\n");
+
+	printf("<destination> <gateway> <interface> <metric>\n");
+	ents = rt.get();
+	for(std::vector<RoutingTable::Entry>::iterator e(ents.begin());e!=ents.end();++e)
+		printf("%s\n",e->toString().c_str());
+	printf("\n");
+
+	return 0;
+}
+#endif
diff --git a/attic/rtbl/BSDRoutingTable.hpp b/attic/rtbl/BSDRoutingTable.hpp
new file mode 100644
index 00000000..97969666
--- /dev/null
+++ b/attic/rtbl/BSDRoutingTable.hpp
@@ -0,0 +1,51 @@
+/*
+ * ZeroTier One - Network Virtualization Everywhere
+ * Copyright (C) 2011-2015  ZeroTier, Inc.
+ *
+ * This program 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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, see <http://www.gnu.org/licenses/>.
+ *
+ * --
+ *
+ * ZeroTier may be used and distributed under the terms of the GPLv3, which
+ * are available at: http://www.gnu.org/licenses/gpl-3.0.html
+ *
+ * If you would like to embed ZeroTier into a commercial application or
+ * redistribute it in a modified binary form, please contact ZeroTier Networks
+ * LLC. Start here: http://www.zerotier.com/
+ */
+
+#ifndef ZT_BSDROUTINGTABLE_HPP
+#define ZT_BSDROUTINGTABLE_HPP
+
+#include "../node/RoutingTable.hpp"
+
+namespace ZeroTier {
+
+/**
+ * Routing table interface for BSD with sysctl() and BSD /sbin/route
+ *
+ * Has currently only been tested on OSX/Darwin.
+ */
+class BSDRoutingTable : public RoutingTable
+{
+public:
+	BSDRoutingTable();
+	virtual ~BSDRoutingTable();
+	virtual std::vector<RoutingTable::Entry> get(bool includeLinkLocal = false,bool includeLoopback = false) const;
+	virtual RoutingTable::Entry set(const InetAddress &destination,const InetAddress &gateway,const char *device,int metric);
+};
+
+} // namespace ZeroTier
+
+#endif
diff --git a/attic/rtbl/LinuxRoutingTable.cpp b/attic/rtbl/LinuxRoutingTable.cpp
new file mode 100644
index 00000000..581054e2
--- /dev/null
+++ b/attic/rtbl/LinuxRoutingTable.cpp
@@ -0,0 +1,235 @@
+/*
+ * ZeroTier One - Network Virtualization Everywhere
+ * Copyright (C) 2011-2015  ZeroTier, Inc.
+ *
+ * This program 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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, see <http://www.gnu.org/licenses/>.
+ *
+ * --
+ *
+ * ZeroTier may be used and distributed under the terms of the GPLv3, which
+ * are available at: http://www.gnu.org/licenses/gpl-3.0.html
+ *
+ * If you would like to embed ZeroTier into a commercial application or
+ * redistribute it in a modified binary form, please contact ZeroTier Networks
+ * LLC. Start here: http://www.zerotier.com/
+ */
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <fcntl.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <ifaddrs.h>
+
+#include <algorithm>
+#include <utility>
+
+#include "../node/Constants.hpp"
+#include "../node/Utils.hpp"
+#include "LinuxRoutingTable.hpp"
+
+#define ZT_LINUX_IP_COMMAND "/sbin/ip"
+
+namespace ZeroTier {
+
+LinuxRoutingTable::LinuxRoutingTable()
+{
+}
+
+LinuxRoutingTable::~LinuxRoutingTable()
+{
+}
+
+std::vector<RoutingTable::Entry> LinuxRoutingTable::get(bool includeLinkLocal,bool includeLoopback) const
+{
+	char buf[131072];
+	char *stmp,*stmp2;
+	std::vector<RoutingTable::Entry> entries;
+
+	{
+		int fd = ::open("/proc/net/route",O_RDONLY);
+		if (fd <= 0)
+			buf[0] = (char)0;
+		else {
+			int n = (int)::read(fd,buf,sizeof(buf) - 1);
+			::close(fd);
+			if (n < 0) n = 0;
+			buf[n] = (char)0;
+		}
+	}
+
+	int lineno = 0;
+	for(char *line=Utils::stok(buf,"\r\n",&stmp);(line);line=Utils::stok((char *)0,"\r\n",&stmp)) {
+		if (lineno == 0) {
+			++lineno;
+			continue; // skip header
+		}
+
+		char *iface = (char *)0;
+		uint32_t destination = 0;
+		uint32_t gateway = 0;
+		int metric = 0;
+		uint32_t mask = 0;
+
+		int fno = 0;
+		for(char *f=Utils::stok(line,"\t \r\n",&stmp2);(f);f=Utils::stok((char *)0,"\t \r\n",&stmp2)) {
+			switch(fno) {
+				case 0: iface = f; break;
+				case 1: destination = (uint32_t)Utils::hexStrToULong(f); break;
+				case 2: gateway = (uint32_t)Utils::hexStrToULong(f); break;
+				case 6: metric = (int)Utils::strToInt(f); break;
+				case 7: mask = (uint32_t)Utils::hexStrToULong(f); break;
+			}
+			++fno;
+		}
+
+		if ((iface)&&(destination)) {
+			RoutingTable::Entry e;
+			if (destination)
+				e.destination.set(&destination,4,Utils::countBits(mask));
+			e.gateway.set(&gateway,4,0);
+			e.deviceIndex = 0; // not used on Linux
+			e.metric = metric;
+			Utils::scopy(e.device,sizeof(e.device),iface);
+			if ((e.destination)&&((includeLinkLocal)||(!e.destination.isLinkLocal()))&&((includeLoopback)||((!e.destination.isLoopback())&&(!e.gateway.isLoopback())&&(strcmp(iface,"lo")))))
+				entries.push_back(e);
+		}
+
+		++lineno;
+	}
+
+	{
+		int fd = ::open("/proc/net/ipv6_route",O_RDONLY);
+		if (fd <= 0)
+			buf[0] = (char)0;
+		else {
+			int n = (int)::read(fd,buf,sizeof(buf) - 1);
+			::close(fd);
+			if (n < 0) n = 0;
+			buf[n] = (char)0;
+		}
+	}
+
+	for(char *line=Utils::stok(buf,"\r\n",&stmp);(line);line=Utils::stok((char *)0,"\r\n",&stmp)) {
+		char *destination = (char *)0;
+		unsigned int destPrefixLen = 0;
+		char *gateway = (char *)0; // next hop in ipv6 terminology
+		int metric = 0;
+		char *device = (char *)0;
+
+		int fno = 0;
+		for(char *f=Utils::stok(line,"\t \r\n",&stmp2);(f);f=Utils::stok((char *)0,"\t \r\n",&stmp2)) {
+			switch(fno) {
+				case 0: destination = f; break;
+				case 1: destPrefixLen = (unsigned int)Utils::hexStrToULong(f); break;
+				case 4: gateway = f; break;
+				case 5: metric = (int)Utils::hexStrToLong(f); break;
+				case 9: device = f; break;
+			}
+			++fno;
+		}
+
+		if ((device)&&(destination)) {
+			unsigned char tmp[16];
+			RoutingTable::Entry e;
+			Utils::unhex(destination,tmp,16);
+			if ((!Utils::isZero(tmp,16))&&(tmp[0] != 0xff))
+				e.destination.set(tmp,16,destPrefixLen);
+			Utils::unhex(gateway,tmp,16);
+			e.gateway.set(tmp,16,0);
+			e.deviceIndex = 0; // not used on Linux
+			e.metric = metric;
+			Utils::scopy(e.device,sizeof(e.device),device);
+			if ((e.destination)&&((includeLinkLocal)||(!e.destination.isLinkLocal()))&&((includeLoopback)||((!e.destination.isLoopback())&&(!e.gateway.isLoopback())&&(strcmp(device,"lo")))))
+				entries.push_back(e);
+		}
+	}
+
+	std::sort(entries.begin(),entries.end());
+	return entries;
+}
+
+RoutingTable::Entry LinuxRoutingTable::set(const InetAddress &destination,const InetAddress &gateway,const char *device,int metric)
+{
+	char metstr[128];
+
+	if ((!gateway)&&((!device)||(!device[0])))
+		return RoutingTable::Entry();
+
+	Utils::snprintf(metstr,sizeof(metstr),"%d",metric);
+
+	if (metric < 0) {
+		long pid = (long)vfork();
+		if (pid == 0) {
+			if (gateway) {
+				if ((device)&&(device[0])) {
+					::execl(ZT_LINUX_IP_COMMAND,ZT_LINUX_IP_COMMAND,"route","del",destination.toString().c_str(),"via",gateway.toIpString().c_str(),"dev",device,(const char *)0);
+				} else {
+					::execl(ZT_LINUX_IP_COMMAND,ZT_LINUX_IP_COMMAND,"route","del",destination.toString().c_str(),"via",gateway.toIpString().c_str(),(const char *)0);
+				}
+			} else {
+				::execl(ZT_LINUX_IP_COMMAND,ZT_LINUX_IP_COMMAND,"route","del",destination.toString().c_str(),"dev",device,(const char *)0);
+			}
+			::_exit(-1);
+		} else if (pid > 0) {
+			int exitcode = -1;
+			::waitpid(pid,&exitcode,0);
+		}
+	} else {
+		long pid = (long)vfork();
+		if (pid == 0) {
+			if (gateway) {
+				if ((device)&&(device[0])) {
+					::execl(ZT_LINUX_IP_COMMAND,ZT_LINUX_IP_COMMAND,"route","replace",destination.toString().c_str(),"metric",metstr,"via",gateway.toIpString().c_str(),"dev",device,(const char *)0);
+				} else {
+					::execl(ZT_LINUX_IP_COMMAND,ZT_LINUX_IP_COMMAND,"route","replace",destination.toString().c_str(),"metric",metstr,"via",gateway.toIpString().c_str(),(const char *)0);
+				}
+			} else {
+				::execl(ZT_LINUX_IP_COMMAND,ZT_LINUX_IP_COMMAND,"route","replace",destination.toString().c_str(),"metric",metstr,"dev",device,(const char *)0);
+			}
+			::_exit(-1);
+		} else if (pid > 0) {
+			int exitcode = -1;
+			::waitpid(pid,&exitcode,0);
+		}
+	}
+
+	std::vector<RoutingTable::Entry> rtab(get(true,true));
+	std::vector<RoutingTable::Entry>::iterator bestEntry(rtab.end());
+	for(std::vector<RoutingTable::Entry>::iterator e(rtab.begin());e!=rtab.end();++e) {
+		if ((e->destination == destination)&&(e->gateway.ipsEqual(gateway))) {
+			if ((device)&&(device[0])) {
+				if (!strcmp(device,e->device)) {
+					if (metric == e->metric)
+						bestEntry = e;
+				}
+			}
+			if (bestEntry == rtab.end())
+				bestEntry = e;
+		}
+	}
+	if (bestEntry != rtab.end())
+		return *bestEntry;
+
+	return RoutingTable::Entry();
+}
+
+} // namespace ZeroTier
diff --git a/attic/rtbl/LinuxRoutingTable.hpp b/attic/rtbl/LinuxRoutingTable.hpp
new file mode 100644
index 00000000..808ec7ea
--- /dev/null
+++ b/attic/rtbl/LinuxRoutingTable.hpp
@@ -0,0 +1,49 @@
+/*
+ * ZeroTier One - Network Virtualization Everywhere
+ * Copyright (C) 2011-2015  ZeroTier, Inc.
+ *
+ * This program 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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, see <http://www.gnu.org/licenses/>.
+ *
+ * --
+ *
+ * ZeroTier may be used and distributed under the terms of the GPLv3, which
+ * are available at: http://www.gnu.org/licenses/gpl-3.0.html
+ *
+ * If you would like to embed ZeroTier into a commercial application or
+ * redistribute it in a modified binary form, please contact ZeroTier Networks
+ * LLC. Start here: http://www.zerotier.com/
+ */
+
+#ifndef ZT_LINUXROUTINGTABLE_HPP
+#define ZT_LINUXROUTINGTABLE_HPP
+
+#include "../node/RoutingTable.hpp"
+
+namespace ZeroTier {
+
+/**
+ * Routing table interface via /proc/net/route, /proc/net/ipv6_route, and /sbin/route command
+ */
+class LinuxRoutingTable : public RoutingTable
+{
+public:
+	LinuxRoutingTable();
+	virtual ~LinuxRoutingTable();
+	virtual std::vector<RoutingTable::Entry> get(bool includeLinkLocal = false,bool includeLoopback = false) const;
+	virtual RoutingTable::Entry set(const InetAddress &destination,const InetAddress &gateway,const char *device,int metric);
+};
+
+} // namespace ZeroTier
+
+#endif
diff --git a/attic/rtbl/RoutingTable.cpp b/attic/rtbl/RoutingTable.cpp
new file mode 100644
index 00000000..bae4bea9
--- /dev/null
+++ b/attic/rtbl/RoutingTable.cpp
@@ -0,0 +1,77 @@
+/*
+ * ZeroTier One - Network Virtualization Everywhere
+ * Copyright (C) 2011-2015  ZeroTier, Inc.
+ *
+ * This program 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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, see <http://www.gnu.org/licenses/>.
+ *
+ * --
+ *
+ * ZeroTier may be used and distributed under the terms of the GPLv3, which
+ * are available at: http://www.gnu.org/licenses/gpl-3.0.html
+ *
+ * If you would like to embed ZeroTier into a commercial application or
+ * redistribute it in a modified binary form, please contact ZeroTier Networks
+ * LLC. Start here: http://www.zerotier.com/
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "Constants.hpp"
+#include "RoutingTable.hpp"
+#include "Utils.hpp"
+
+namespace ZeroTier {
+
+std::string RoutingTable::Entry::toString() const
+{
+	char tmp[1024];
+	Utils::snprintf(tmp,sizeof(tmp),"%s %s %s %d",destination.toString().c_str(),((gateway) ? gateway.toIpString().c_str() : "<link>"),device,metric);
+	return std::string(tmp);
+}
+
+bool RoutingTable::Entry::operator==(const Entry &re) const
+{
+	return ((destination == re.destination)&&(gateway == re.gateway)&&(strcmp(device,re.device) == 0)&&(metric == re.metric));
+}
+
+bool RoutingTable::Entry::operator<(const Entry &re) const
+{
+	if (destination < re.destination)
+		return true;
+	else if (destination == re.destination) {
+		if (gateway < re.gateway)
+			return true;
+		else if (gateway == re.gateway) {
+			int tmp = (int)::strcmp(device,re.device);
+			if (tmp < 0)
+				return true;
+			else if (tmp == 0)
+				return (metric < re.metric);
+		}
+	}
+	return false;
+}
+
+RoutingTable::RoutingTable()
+{
+}
+
+RoutingTable::~RoutingTable()
+{
+}
+
+} // namespace ZeroTier
diff --git a/attic/rtbl/RoutingTable.hpp b/attic/rtbl/RoutingTable.hpp
new file mode 100644
index 00000000..e1c98984
--- /dev/null
+++ b/attic/rtbl/RoutingTable.hpp
@@ -0,0 +1,122 @@
+/*
+ * ZeroTier One - Network Virtualization Everywhere
+ * Copyright (C) 2011-2015  ZeroTier, Inc.
+ *
+ * This program 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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, see <http://www.gnu.org/licenses/>.
+ *
+ * --
+ *
+ * ZeroTier may be used and distributed under the terms of the GPLv3, which
+ * are available at: http://www.gnu.org/licenses/gpl-3.0.html
+ *
+ * If you would like to embed ZeroTier into a commercial application or
+ * redistribute it in a modified binary form, please contact ZeroTier Networks
+ * LLC. Start here: http://www.zerotier.com/
+ */
+
+#ifndef ZT_ROUTINGTABLE_HPP
+#define ZT_ROUTINGTABLE_HPP
+
+#include <vector>
+#include <string>
+
+#include "InetAddress.hpp"
+#include "NonCopyable.hpp"
+
+namespace ZeroTier {
+
+/**
+ * Base class for OS routing table interfaces
+ */
+class RoutingTable : NonCopyable
+{
+public:
+	class Entry
+	{
+	public:
+		Entry() throw() { device[0] = (char)0; }
+
+		/**
+		 * Destination IP and netmask bits (CIDR format)
+		 */
+		InetAddress destination;
+
+		/**
+		 * Gateway or null address if direct link-level route, netmask/port part of InetAddress not used
+		 */
+		InetAddress gateway;
+
+		/**
+		 * System device index or ID (not included in comparison operators, may not be set on all platforms)
+		 */
+		int deviceIndex;
+
+		/**
+		 * Metric or hop count -- higher = lower routing priority
+		 */
+		int metric;
+
+		/**
+		 * System device name
+		 */
+		char device[128];
+
+		/**
+		 * @return Human-readable representation of this route
+		 */
+		std::string toString() const;
+
+		/**
+		 * @return True if at least one required field is present (object is not null)
+		 */
+		inline operator bool() const { return ((destination)||(gateway)||(device[0])); }
+
+		bool operator==(const Entry &re) const;
+		inline bool operator!=(const Entry &re) const { return (!(*this == re)); }
+		bool operator<(const Entry &re) const;
+		inline bool operator>(const Entry &re) const { return (re < *this); }
+		inline bool operator<=(const Entry &re) const { return (!(re < *this)); }
+		inline bool operator>=(const Entry &re) const { return (!(*this < re)); }
+	};
+
+	RoutingTable();
+	virtual ~RoutingTable();
+
+	/**
+	 * Get routing table
+	 *
+	 * @param includeLinkLocal If true, include link-local address routes (default: false)
+	 * @param includeLoopback Include loopback (default: false)
+	 * @return Sorted routing table entries
+	 */
+	virtual std::vector<RoutingTable::Entry> get(bool includeLinkLocal = false,bool includeLoopback = false) const = 0;
+
+	/**
+	 * Add or update a routing table entry
+	 *
+	 * If there is no change, the existing entry is returned. Use a value of -1
+	 * for metric to delete a route.
+	 *
+	 * @param destination Destination IP/netmask
+	 * @param gateway Gateway IP (netmask/port part unused) or NULL/zero for device-level route
+	 * @param device Device name (can be null for gateway routes)
+	 * @param metric Route metric or hop count (higher = lower priority) or negative to delete
+	 * @return Entry or null entry on failure (or delete)
+	 */
+	virtual RoutingTable::Entry set(const InetAddress &destination,const InetAddress &gateway,const char *device,int metric) = 0;
+};
+
+} // namespace ZeroTier
+
+#endif
diff --git a/attic/rtbl/TestRoutingTable.cpp b/attic/rtbl/TestRoutingTable.cpp
new file mode 100644
index 00000000..fd61b314
--- /dev/null
+++ b/attic/rtbl/TestRoutingTable.cpp
@@ -0,0 +1,50 @@
+/*
+ * ZeroTier One - Network Virtualization Everywhere
+ * Copyright (C) 2011-2015  ZeroTier, Inc.
+ *
+ * This program 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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, see <http://www.gnu.org/licenses/>.
+ *
+ * --
+ *
+ * ZeroTier may be used and distributed under the terms of the GPLv3, which
+ * are available at: http://www.gnu.org/licenses/gpl-3.0.html
+ *
+ * If you would like to embed ZeroTier into a commercial application or
+ * redistribute it in a modified binary form, please contact ZeroTier Networks
+ * LLC. Start here: http://www.zerotier.com/
+ */
+
+#include "TestRoutingTable.hpp"
+
+namespace ZeroTier {
+
+TestRoutingTable::TestRoutingTable()
+{
+}
+
+TestRoutingTable::~TestRoutingTable()
+{
+}
+
+std::vector<RoutingTable::Entry> TestRoutingTable::get(bool includeLinkLocal,bool includeLoopback) const
+{
+	return std::vector<RoutingTable::Entry>();
+}
+
+RoutingTable::Entry TestRoutingTable::set(const InetAddress &destination,const InetAddress &gateway,const char *device,int metric)
+{
+	return RoutingTable::Entry();
+}
+
+} // namespace ZeroTier
diff --git a/attic/rtbl/TestRoutingTable.hpp b/attic/rtbl/TestRoutingTable.hpp
new file mode 100644
index 00000000..69bd3d9f
--- /dev/null
+++ b/attic/rtbl/TestRoutingTable.hpp
@@ -0,0 +1,50 @@
+/*
+ * ZeroTier One - Network Virtualization Everywhere
+ * Copyright (C) 2011-2015  ZeroTier, Inc.
+ *
+ * This program 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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, see <http://www.gnu.org/licenses/>.
+ *
+ * --
+ *
+ * ZeroTier may be used and distributed under the terms of the GPLv3, which
+ * are available at: http://www.gnu.org/licenses/gpl-3.0.html
+ *
+ * If you would like to embed ZeroTier into a commercial application or
+ * redistribute it in a modified binary form, please contact ZeroTier Networks
+ * LLC. Start here: http://www.zerotier.com/
+ */
+
+#ifndef ZT_TESTROUTINGTABLE_HPP
+#define ZT_TESTROUTINGTABLE_HPP
+
+#include "../node/RoutingTable.hpp"
+
+namespace ZeroTier {
+
+/**
+ * Dummy routing table -- right now this just does nothing
+ */
+class TestRoutingTable : public RoutingTable
+{
+public:
+	TestRoutingTable();
+	virtual ~TestRoutingTable();
+
+	virtual std::vector<RoutingTable::Entry> get(bool includeLinkLocal = false,bool includeLoopback = false) const;
+	virtual RoutingTable::Entry set(const InetAddress &destination,const InetAddress &gateway,const char *device,int metric);
+};
+
+} // namespace ZeroTier
+
+#endif
diff --git a/attic/rtbl/WindowsRoutingTable.cpp b/attic/rtbl/WindowsRoutingTable.cpp
new file mode 100644
index 00000000..00674620
--- /dev/null
+++ b/attic/rtbl/WindowsRoutingTable.cpp
@@ -0,0 +1,178 @@
+/*
+ * ZeroTier One - Network Virtualization Everywhere
+ * Copyright (C) 2011-2015  ZeroTier, Inc.
+ *
+ * This program 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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, see <http://www.gnu.org/licenses/>.
+ *
+ * --
+ *
+ * ZeroTier may be used and distributed under the terms of the GPLv3, which
+ * are available at: http://www.gnu.org/licenses/gpl-3.0.html
+ *
+ * If you would like to embed ZeroTier into a commercial application or
+ * redistribute it in a modified binary form, please contact ZeroTier Networks
+ * LLC. Start here: http://www.zerotier.com/
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <WinSock2.h>
+#include <Windows.h>
+#include <netioapi.h>
+#include <IPHlpApi.h>
+
+#include <vector>
+
+#include "../node/Constants.hpp"
+#include "WindowsRoutingTable.hpp"
+
+namespace ZeroTier {
+
+static void _copyInetAddressToSockaddrInet(const InetAddress &a,SOCKADDR_INET &sinet)
+{
+	memset(&sinet,0,sizeof(sinet));
+	if (a.isV4()) {
+		sinet.Ipv4.sin_addr.S_un.S_addr = *((const uint32_t *)a.rawIpData());
+		sinet.Ipv4.sin_family = AF_INET;
+		sinet.Ipv4.sin_port = htons(a.port());
+	} else if (a.isV6()) {
+		memcpy(sinet.Ipv6.sin6_addr.u.Byte,a.rawIpData(),16);
+		sinet.Ipv6.sin6_family = AF_INET6;
+		sinet.Ipv6.sin6_port = htons(a.port());
+	}
+}
+
+WindowsRoutingTable::WindowsRoutingTable()
+{
+}
+
+WindowsRoutingTable::~WindowsRoutingTable()
+{
+}
+
+std::vector<RoutingTable::Entry> WindowsRoutingTable::get(bool includeLinkLocal,bool includeLoopback) const
+{
+	std::vector<RoutingTable::Entry> entries;
+	PMIB_IPFORWARD_TABLE2 rtbl = NULL;
+
+	if (GetIpForwardTable2(AF_UNSPEC,&rtbl) != NO_ERROR)
+		return entries;
+	if (!rtbl)
+		return entries;
+
+	for(ULONG r=0;r<rtbl->NumEntries;++r) {
+		RoutingTable::Entry e;
+		switch(rtbl->Table[r].DestinationPrefix.Prefix.si_family) {
+			case AF_INET:
+				e.destination.set(&(rtbl->Table[r].DestinationPrefix.Prefix.Ipv4.sin_addr.S_un.S_addr),4,rtbl->Table[r].DestinationPrefix.PrefixLength);
+				break;
+			case AF_INET6:
+				e.destination.set(rtbl->Table[r].DestinationPrefix.Prefix.Ipv6.sin6_addr.u.Byte,16,rtbl->Table[r].DestinationPrefix.PrefixLength);
+				break;
+		}
+		switch(rtbl->Table[r].NextHop.si_family) {
+			case AF_INET:
+				e.gateway.set(&(rtbl->Table[r].NextHop.Ipv4.sin_addr.S_un.S_addr),4,0);
+				break;
+			case AF_INET6:
+				e.gateway.set(rtbl->Table[r].NextHop.Ipv6.sin6_addr.u.Byte,16,0);
+				break;
+		}
+		e.deviceIndex = (int)rtbl->Table[r].InterfaceIndex;
+		e.metric = (int)rtbl->Table[r].Metric;
+		ConvertInterfaceLuidToNameA(&(rtbl->Table[r].InterfaceLuid),e.device,sizeof(e.device));
+		if ((e.destination)&&((includeLinkLocal)||(!e.destination.isLinkLocal()))&&((includeLoopback)||((!e.destination.isLoopback())&&(!e.gateway.isLoopback()))))
+			entries.push_back(e);
+	}
+
+	FreeMibTable(rtbl);
+	std::sort(entries.begin(),entries.end());
+	return entries;
+}
+
+RoutingTable::Entry WindowsRoutingTable::set(const InetAddress &destination,const InetAddress &gateway,const char *device,int metric)
+{
+	NET_LUID luid;
+	luid.Value = 0;
+	if (ConvertInterfaceNameToLuidA(device,&luid) != NO_ERROR)
+		return RoutingTable::Entry();
+
+	bool needCreate = true;
+	PMIB_IPFORWARD_TABLE2 rtbl = NULL;
+	if (GetIpForwardTable2(AF_UNSPEC,&rtbl) != NO_ERROR)
+		return RoutingTable::Entry();
+	if (!rtbl)
+		return RoutingTable::Entry();
+	for(ULONG r=0;r<rtbl->NumEntries;++r) {
+		if (rtbl->Table[r].InterfaceLuid.Value == luid.Value) {
+			InetAddress rdest;
+			switch(rtbl->Table[r].DestinationPrefix.Prefix.si_family) {
+				case AF_INET:
+					rdest.set(&(rtbl->Table[r].DestinationPrefix.Prefix.Ipv4.sin_addr.S_un.S_addr),4,rtbl->Table[r].DestinationPrefix.PrefixLength);
+					break;
+				case AF_INET6:
+					rdest.set(rtbl->Table[r].DestinationPrefix.Prefix.Ipv6.sin6_addr.u.Byte,16,rtbl->Table[r].DestinationPrefix.PrefixLength);
+					break;
+			}
+			if (rdest == destination) {
+				if (metric >= 0) {
+					_copyInetAddressToSockaddrInet(gateway,rtbl->Table[r].NextHop);
+					rtbl->Table[r].Metric = metric;
+					SetIpForwardEntry2(&(rtbl->Table[r]));
+					needCreate = false;
+				} else {
+					DeleteIpForwardEntry2(&(rtbl->Table[r]));
+					FreeMibTable(rtbl);
+					return RoutingTable::Entry();
+				}
+			}
+		}
+	}
+	FreeMibTable(rtbl);
+
+	if ((metric >= 0)&&(needCreate)) {
+		MIB_IPFORWARD_ROW2 nr;
+		InitializeIpForwardEntry(&nr);
+		nr.InterfaceLuid.Value = luid.Value;
+		_copyInetAddressToSockaddrInet(destination,nr.DestinationPrefix.Prefix);
+		nr.DestinationPrefix.PrefixLength = destination.netmaskBits();
+		_copyInetAddressToSockaddrInet(gateway,nr.NextHop);
+		nr.Metric = metric;
+		nr.Protocol = MIB_IPPROTO_NETMGMT;
+		DWORD result = CreateIpForwardEntry2(&nr);
+		if (result != NO_ERROR)
+			return RoutingTable::Entry();
+	}
+
+	std::vector<RoutingTable::Entry> rtab(get(true,true));
+	std::vector<RoutingTable::Entry>::iterator bestEntry(rtab.end());
+	for(std::vector<RoutingTable::Entry>::iterator e(rtab.begin());e!=rtab.end();++e) {
+		if ((e->destination == destination)&&(e->gateway.ipsEqual(gateway))) {
+			if ((device)&&(device[0])) {
+				if (!strcmp(device,e->device)) {
+					if (metric == e->metric)
+						bestEntry = e;
+				}
+			}
+			if (bestEntry == rtab.end())
+				bestEntry = e;
+		}
+	}
+	if (bestEntry != rtab.end())
+		return *bestEntry;
+	return RoutingTable::Entry();
+}
+
+} // namespace ZeroTier
diff --git a/attic/rtbl/WindowsRoutingTable.hpp b/attic/rtbl/WindowsRoutingTable.hpp
new file mode 100644
index 00000000..491c3424
--- /dev/null
+++ b/attic/rtbl/WindowsRoutingTable.hpp
@@ -0,0 +1,49 @@
+/*
+ * ZeroTier One - Network Virtualization Everywhere
+ * Copyright (C) 2011-2015  ZeroTier, Inc.
+ *
+ * This program 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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, see <http://www.gnu.org/licenses/>.
+ *
+ * --
+ *
+ * ZeroTier may be used and distributed under the terms of the GPLv3, which
+ * are available at: http://www.gnu.org/licenses/gpl-3.0.html
+ *
+ * If you would like to embed ZeroTier into a commercial application or
+ * redistribute it in a modified binary form, please contact ZeroTier Networks
+ * LLC. Start here: http://www.zerotier.com/
+ */
+
+#ifndef ZT_WINDOWSROUTINGTABLE_HPP
+#define ZT_WINDOWSROUTINGTABLE_HPP
+
+#include "../node/RoutingTable.hpp"
+
+namespace ZeroTier {
+
+/**
+ * Interface to Microsoft Windows (Vista or newer) routing table
+ */
+class WindowsRoutingTable : public RoutingTable
+{
+public:
+	WindowsRoutingTable();
+	virtual ~WindowsRoutingTable();
+	virtual std::vector<RoutingTable::Entry> get(bool includeLinkLocal = false,bool includeLoopback = false) const;
+	virtual RoutingTable::Entry set(const InetAddress &destination,const InetAddress &gateway,const char *device,int metric);
+};
+
+} // namespace ZeroTier
+
+#endif