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attic/Binder.hpp
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/*
* Copyright (c)2019 ZeroTier, Inc.
*
* Use of this software is governed by the Business Source License included
* in the LICENSE.TXT file in the project's root directory.
*
* Change Date: 2023-01-01
*
* On the date above, in accordance with the Business Source License, use
* of this software will be governed by version 2.0 of the Apache License.
*/
/****/
#ifndef ZT_BINDER_HPP
#define ZT_BINDER_HPP
#include "../node/Constants.hpp"
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef __WINDOWS__
#include <WinSock2.h>
#include <Windows.h>
#include <ShlObj.h>
#include <netioapi.h>
#include <iphlpapi.h>
#else
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <unistd.h>
#include <ifaddrs.h>
#ifdef __LINUX__
#include <sys/ioctl.h>
#include <net/if.h>
#endif
#endif
#include <string>
#include <vector>
#include <algorithm>
#include <utility>
#include <map>
#include <set>
#include <atomic>
#include "../node/InetAddress.hpp"
#include "../node/Mutex.hpp"
#include "../node/Utils.hpp"
#include "Phy.hpp"
#include "OSUtils.hpp"
#if (defined(__amd64) || defined(__amd64__) || defined(__x86_64) || defined(__x86_64__) || defined(__AMD64) || defined(__AMD64__))
#define ZT_UDP_DESIRED_BUF_SIZE 1048576
#else
#define ZT_UDP_DESIRED_BUF_SIZE 131072
#endif
// Period between refreshes of bindings
#define ZT_BINDER_REFRESH_PERIOD 30000
// Max number of bindings
#define ZT_BINDER_MAX_BINDINGS 256
namespace ZeroTier {
/**
* Enumerates local devices and binds to all potential ZeroTier path endpoints
*
* This replaces binding to wildcard (0.0.0.0 and ::0) with explicit binding
* as part of the path to default gateway support. Under the hood it uses
* different queries on different OSes to enumerate devices, and also exposes
* device enumeration and endpoint IP data for use elsewhere.
*
* On OSes that do not support local port enumeration or where this is not
* meaningful, this degrades to binding to wildcard.
*/
class Binder
{
private:
struct _Binding
{
_Binding() : udpSock((PhySocket *)0),tcpListenSock((PhySocket *)0) {}
PhySocket *udpSock;
PhySocket *tcpListenSock;
InetAddress address;
};
public:
Binder() : _bindingCount(0) {}
/**
* Close all bound ports, should be called on shutdown
*
* @param phy Physical interface
*/
template<typename PHY_HANDLER_TYPE>
void closeAll(Phy<PHY_HANDLER_TYPE> &phy)
{
Mutex::Lock _l(_lock);
for(unsigned int b=0,c=_bindingCount;b<c;++b) {
phy.close(_bindings[b].udpSock,false);
phy.close(_bindings[b].tcpListenSock,false);
}
_bindingCount = 0;
}
/**
* Scan local devices and addresses and rebind TCP and UDP
*
* This should be called after wake from sleep, on detected network device
* changes, on startup, or periodically (e.g. every 30-60s).
*
* @param phy Physical interface
* @param ports Ports to bind on all interfaces
* @param portCount Number of ports
* @param explicitBind If present, override interface IP detection and bind to these (if possible)
* @param ifChecker Interface checker function to see if an interface should be used
* @tparam PHY_HANDLER_TYPE Type for Phy<> template
* @tparam INTERFACE_CHECKER Type for class containing shouldBindInterface() method
*/
template<typename PHY_HANDLER_TYPE,typename INTERFACE_CHECKER>
void refresh(Phy<PHY_HANDLER_TYPE> &phy,unsigned int *ports,unsigned int portCount,const std::vector<InetAddress> explicitBind,INTERFACE_CHECKER &ifChecker)
{
std::map<InetAddress,std::string> localIfAddrs;
PhySocket *udps,*tcps;
Mutex::Lock _l(_lock);
bool interfacesEnumerated = true;
if (explicitBind.empty()) {
#ifdef __WINDOWS__
char aabuf[32768];
ULONG aalen = sizeof(aabuf);
if (GetAdaptersAddresses(AF_UNSPEC,GAA_FLAG_SKIP_ANYCAST|GAA_FLAG_SKIP_MULTICAST|GAA_FLAG_SKIP_DNS_SERVER,(void *)0,reinterpret_cast<PIP_ADAPTER_ADDRESSES>(aabuf),&aalen) == NO_ERROR) {
PIP_ADAPTER_ADDRESSES a = reinterpret_cast<PIP_ADAPTER_ADDRESSES>(aabuf);
while (a) {
PIP_ADAPTER_UNICAST_ADDRESS ua = a->FirstUnicastAddress;
while (ua) {
InetAddress ip(ua->Address.lpSockaddr);
if (ifChecker.shouldBindInterface("",ip)) {
switch(ip.ipScope()) {
default: break;
case InetAddress::IP_SCOPE_PSEUDOPRIVATE:
case InetAddress::IP_SCOPE_GLOBAL:
case InetAddress::IP_SCOPE_SHARED:
case InetAddress::IP_SCOPE_PRIVATE:
for(int x=0;x<(int)portCount;++x) {
ip.setPort(ports[x]);
localIfAddrs.insert(std::pair<InetAddress,std::string>(ip,std::string()));
}
break;
}
}
ua = ua->Next;
}
a = a->Next;
}
}
else {
interfacesEnumerated = false;
}
#else // not __WINDOWS__
/* On Linux we use an alternative method if available since getifaddrs()
* gets very slow when there are lots of network namespaces. This won't
* work unless /proc/PID/net/if_inet6 exists and it may not on some
* embedded systems, so revert to getifaddrs() there. */
#ifdef __LINUX__
char fn[256],tmp[256];
std::set<std::string> ifnames;
const unsigned long pid = (unsigned long)getpid();
// Get all device names
OSUtils::ztsnprintf(fn,sizeof(fn),"/proc/%lu/net/dev",pid);
FILE *procf = fopen(fn,"r");
if (procf) {
while (fgets(tmp,sizeof(tmp),procf)) {
tmp[255] = 0;
char *saveptr = (char *)0;
for(char *f=Utils::stok(tmp," \t\r\n:|",&saveptr);(f);f=Utils::stok((char *)0," \t\r\n:|",&saveptr)) {
if ((strcmp(f,"Inter-") != 0)&&(strcmp(f,"face") != 0)&&(f[0] != 0))
ifnames.insert(f);
break; // we only want the first field
}
}
fclose(procf);
}
else {
interfacesEnumerated = false;
}
// Get IPv6 addresses (and any device names we don't already know)
OSUtils::ztsnprintf(fn,sizeof(fn),"/proc/%lu/net/if_inet6",pid);
procf = fopen(fn,"r");
if (procf) {
while (fgets(tmp,sizeof(tmp),procf)) {
tmp[255] = 0;
char *saveptr = (char *)0;
unsigned char ipbits[16];
memset(ipbits,0,sizeof(ipbits));
char *devname = (char *)0;
int n = 0;
for(char *f=Utils::stok(tmp," \t\r\n",&saveptr);(f);f=Utils::stok((char *)0," \t\r\n",&saveptr)) {
switch(n++) {
case 0: // IP in hex
Utils::unhex(f,32,ipbits,16);
break;
case 5: // device name
devname = f;
break;
}
}
if (devname) {
ifnames.insert(devname);
InetAddress ip(ipbits,16,0);
if (ifChecker.shouldBindInterface(devname,ip)) {
switch(ip.ipScope()) {
default: break;
case InetAddress::IP_SCOPE_PSEUDOPRIVATE:
case InetAddress::IP_SCOPE_GLOBAL:
case InetAddress::IP_SCOPE_SHARED:
case InetAddress::IP_SCOPE_PRIVATE:
for(int x=0;x<(int)portCount;++x) {
ip.setPort(ports[x]);
localIfAddrs.insert(std::pair<InetAddress,std::string>(ip,std::string(devname)));
}
break;
}
}
}
}
fclose(procf);
}
// Get IPv4 addresses for each device
if (ifnames.size() > 0) {
const int controlfd = (int)socket(AF_INET,SOCK_DGRAM,0);
struct ifconf configuration;
configuration.ifc_len = 0;
configuration.ifc_buf = nullptr;
if (controlfd < 0) goto ip4_address_error;
if (ioctl(controlfd, SIOCGIFCONF, &configuration) < 0) goto ip4_address_error;
configuration.ifc_buf = (char*)malloc(configuration.ifc_len);
if (ioctl(controlfd, SIOCGIFCONF, &configuration) < 0) goto ip4_address_error;
for (int i=0; i < (int)(configuration.ifc_len / sizeof(ifreq)); i ++) {
struct ifreq& request = configuration.ifc_req[i];
struct sockaddr* addr = &request.ifr_ifru.ifru_addr;
if (addr->sa_family != AF_INET) continue;
std::string ifname = request.ifr_ifrn.ifrn_name;
// name can either be just interface name or interface name followed by ':' and arbitrary label
if (ifname.find(':') != std::string::npos)
ifname = ifname.substr(0, ifname.find(':'));
InetAddress ip(&(((struct sockaddr_in *)addr)->sin_addr),4,0);
if (ifChecker.shouldBindInterface(ifname.c_str(), ip)) {
switch(ip.ipScope()) {
default: break;
case InetAddress::IP_SCOPE_PSEUDOPRIVATE:
case InetAddress::IP_SCOPE_GLOBAL:
case InetAddress::IP_SCOPE_SHARED:
case InetAddress::IP_SCOPE_PRIVATE:
for(int x=0;x<(int)portCount;++x) {
ip.setPort(ports[x]);
localIfAddrs.insert(std::pair<InetAddress,std::string>(ip,ifname));
}
break;
}
}
}
ip4_address_error:
free(configuration.ifc_buf);
if (controlfd > 0) close(controlfd);
}
const bool gotViaProc = (localIfAddrs.size() > 0);
#else
const bool gotViaProc = false;
#endif
#if !defined(ZT_SDK) || !defined(__ANDROID__) // getifaddrs() freeifaddrs() not available on Android
if (!gotViaProc) {
struct ifaddrs *ifatbl = (struct ifaddrs *)0;
struct ifaddrs *ifa;
if ((getifaddrs(&ifatbl) == 0)&&(ifatbl)) {
ifa = ifatbl;
while (ifa) {
if ((ifa->ifa_name)&&(ifa->ifa_addr)) {
InetAddress ip = *(ifa->ifa_addr);
if (ifChecker.shouldBindInterface(ifa->ifa_name,ip)) {
switch(ip.ipScope()) {
default: break;
case InetAddress::IP_SCOPE_PSEUDOPRIVATE:
case InetAddress::IP_SCOPE_GLOBAL:
case InetAddress::IP_SCOPE_SHARED:
case InetAddress::IP_SCOPE_PRIVATE:
for(int x=0;x<(int)portCount;++x) {
ip.setPort(ports[x]);
localIfAddrs.insert(std::pair<InetAddress,std::string>(ip,std::string(ifa->ifa_name)));
}
break;
}
}
}
ifa = ifa->ifa_next;
}
freeifaddrs(ifatbl);
}
else {
interfacesEnumerated = false;
}
}
#endif
#endif
} else {
for(std::vector<InetAddress>::const_iterator i(explicitBind.begin());i!=explicitBind.end();++i)
localIfAddrs.insert(std::pair<InetAddress,std::string>(*i,std::string()));
}
// Default to binding to wildcard if we can't enumerate addresses
if (!interfacesEnumerated && localIfAddrs.empty()) {
for(int x=0;x<(int)portCount;++x) {
localIfAddrs.insert(std::pair<InetAddress,std::string>(InetAddress((uint32_t)0,ports[x]),std::string()));
localIfAddrs.insert(std::pair<InetAddress,std::string>(InetAddress((const void *)"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0",16,ports[x]),std::string()));
}
}
const unsigned int oldBindingCount = _bindingCount;
_bindingCount = 0;
// Save bindings that are still valid, close those that are not
for(unsigned int b=0;b<oldBindingCount;++b) {
if (localIfAddrs.find(_bindings[b].address) != localIfAddrs.end()) {
if (_bindingCount != b)
_bindings[(unsigned int)_bindingCount] = _bindings[b];
++_bindingCount;
} else {
PhySocket *const udps = _bindings[b].udpSock;
PhySocket *const tcps = _bindings[b].tcpListenSock;
_bindings[b].udpSock = (PhySocket *)0;
_bindings[b].tcpListenSock = (PhySocket *)0;
phy.close(udps,false);
phy.close(tcps,false);
}
}
// Create new bindings for those not already bound
for(std::map<InetAddress,std::string>::const_iterator ii(localIfAddrs.begin());ii!=localIfAddrs.end();++ii) {
unsigned int bi = 0;
while (bi != _bindingCount) {
if (_bindings[bi].address == ii->first)
break;
++bi;
}
if (bi == _bindingCount) {
udps = phy.udpBind(reinterpret_cast<const struct sockaddr *>(&(ii->first)),(void *)0,ZT_UDP_DESIRED_BUF_SIZE);
tcps = phy.tcpListen(reinterpret_cast<const struct sockaddr *>(&(ii->first)),(void *)0);
if ((udps)&&(tcps)) {
#ifdef __LINUX__
// Bind Linux sockets to their device so routes that we manage do not override physical routes (wish all platforms had this!)
if (ii->second.length() > 0) {
char tmp[256];
Utils::scopy(tmp,sizeof(tmp),ii->second.c_str());
int fd = (int)Phy<PHY_HANDLER_TYPE>::getDescriptor(udps);
if (fd >= 0)
setsockopt(fd,SOL_SOCKET,SO_BINDTODEVICE,tmp,strlen(tmp));
fd = (int)Phy<PHY_HANDLER_TYPE>::getDescriptor(tcps);
if (fd >= 0)
setsockopt(fd,SOL_SOCKET,SO_BINDTODEVICE,tmp,strlen(tmp));
}
#endif // __LINUX__
if (_bindingCount < ZT_BINDER_MAX_BINDINGS) {
_bindings[_bindingCount].udpSock = udps;
_bindings[_bindingCount].tcpListenSock = tcps;
_bindings[_bindingCount].address = ii->first;
phy.setIfName(udps,(char*)ii->second.c_str(),(int)ii->second.length());
++_bindingCount;
}
} else {
phy.close(udps,false);
phy.close(tcps,false);
}
}
}
}
/**
* @return All currently bound local interface addresses
*/
inline std::vector<InetAddress> allBoundLocalInterfaceAddresses() const
{
std::vector<InetAddress> aa;
Mutex::Lock _l(_lock);
for(unsigned int b=0,c=_bindingCount;b<c;++b)
aa.push_back(_bindings[b].address);
return aa;
}
/**
* Send from all bound UDP sockets
*/
template<typename PHY_HANDLER_TYPE>
inline bool udpSendAll(Phy<PHY_HANDLER_TYPE> &phy,const struct sockaddr_storage *addr,const void *data,unsigned int len,unsigned int ttl)
{
bool r = false;
Mutex::Lock _l(_lock);
for(unsigned int b=0,c=_bindingCount;b<c;++b) {
if (ttl) phy.setIp4UdpTtl(_bindings[b].udpSock,ttl);
if (phy.udpSend(_bindings[b].udpSock,(const struct sockaddr *)addr,data,len)) r = true;
if (ttl) phy.setIp4UdpTtl(_bindings[b].udpSock,255);
}
return r;
}
/**
* @param addr Address to check
* @return True if this is a bound local interface address
*/
inline bool isBoundLocalInterfaceAddress(const InetAddress &addr) const
{
Mutex::Lock _l(_lock);
for(unsigned int b=0;b<_bindingCount;++b) {
if (_bindings[b].address == addr)
return true;
}
return false;
}
/**
* Quickly check that a UDP socket is valid
*
* @param udpSock UDP socket to check
* @return True if socket is currently bound/allocated
*/
inline bool isUdpSocketValid(PhySocket *const udpSock)
{
for(unsigned int b=0,c=_bindingCount;b<c;++b) {
if (_bindings[b].udpSock == udpSock)
return (b < _bindingCount); // double check atomic which may have changed
}
return false;
}
private:
_Binding _bindings[ZT_BINDER_MAX_BINDINGS];
std::atomic<unsigned int> _bindingCount;
Mutex _lock;
};
} // namespace ZeroTier
#endif

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attic/Http.cpp
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/*
* Copyright (c)2019 ZeroTier, Inc.
*
* Use of this software is governed by the Business Source License included
* in the LICENSE.TXT file in the project's root directory.
*
* Change Date: 2023-01-01
*
* On the date above, in accordance with the Business Source License, use
* of this software will be governed by version 2.0 of the Apache License.
*/
/****/
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include "Http.hpp"
#include "Phy.hpp"
#include "OSUtils.hpp"
#include "../node/Constants.hpp"
#include "../node/Utils.hpp"
#ifdef ZT_USE_SYSTEM_HTTP_PARSER
#include <http_parser.h>
#else
#include "../ext/http-parser/http_parser.h"
#endif
namespace ZeroTier {
namespace {
static int ShttpOnMessageBegin(http_parser *parser);
static int ShttpOnUrl(http_parser *parser,const char *ptr,size_t length);
#if (HTTP_PARSER_VERSION_MAJOR >= 2) && (HTTP_PARSER_VERSION_MINOR >= 2)
static int ShttpOnStatus(http_parser *parser,const char *ptr,size_t length);
#else
static int ShttpOnStatus(http_parser *parser);
#endif
static int ShttpOnHeaderField(http_parser *parser,const char *ptr,size_t length);
static int ShttpOnValue(http_parser *parser,const char *ptr,size_t length);
static int ShttpOnHeadersComplete(http_parser *parser);
static int ShttpOnBody(http_parser *parser,const char *ptr,size_t length);
static int ShttpOnMessageComplete(http_parser *parser);
#if (HTTP_PARSER_VERSION_MAJOR >= 2) && (HTTP_PARSER_VERSION_MINOR >= 1)
static const struct http_parser_settings HTTP_PARSER_SETTINGS = {
ShttpOnMessageBegin,
ShttpOnUrl,
ShttpOnStatus,
ShttpOnHeaderField,
ShttpOnValue,
ShttpOnHeadersComplete,
ShttpOnBody,
ShttpOnMessageComplete
};
#else
static const struct http_parser_settings HTTP_PARSER_SETTINGS = {
ShttpOnMessageBegin,
ShttpOnUrl,
ShttpOnHeaderField,
ShttpOnValue,
ShttpOnHeadersComplete,
ShttpOnBody,
ShttpOnMessageComplete
};
#endif
struct HttpPhyHandler
{
// not used
inline void phyOnDatagram(PhySocket *sock,void **uptr,const struct sockaddr *localAddr,const struct sockaddr *from,void *data,unsigned long len) {}
inline void phyOnTcpAccept(PhySocket *sockL,PhySocket *sockN,void **uptrL,void **uptrN,const struct sockaddr *from) {}
inline void phyOnTcpConnect(PhySocket *sock,void **uptr,bool success)
{
if (success) {
phy->setNotifyWritable(sock,true);
} else {
*responseBody = "connection failed";
error = true;
done = true;
}
}
inline void phyOnTcpClose(PhySocket *sock,void **uptr)
{
done = true;
}
inline void phyOnTcpData(PhySocket *sock,void **uptr,void *data,unsigned long len)
{
lastActivity = OSUtils::now();
http_parser_execute(&parser,&HTTP_PARSER_SETTINGS,(const char *)data,len);
if ((parser.upgrade)||(parser.http_errno != HPE_OK))
phy->close(sock);
}
inline void phyOnTcpWritable(PhySocket *sock,void **uptr)
{
if (writePtr < (unsigned long)writeBuf.length()) {
long n = phy->streamSend(sock,writeBuf.data() + writePtr,(unsigned long)writeBuf.length() - writePtr,true);
if (n > 0)
writePtr += n;
}
if (writePtr >= (unsigned long)writeBuf.length())
phy->setNotifyWritable(sock,false);
}
inline void phyOnFileDescriptorActivity(PhySocket *sock,void **uptr,bool readable,bool writable) {}
#ifdef __UNIX_LIKE__
inline void phyOnUnixAccept(PhySocket *sockL,PhySocket *sockN,void **uptrL,void **uptrN) {}
inline void phyOnUnixClose(PhySocket *sock,void **uptr) {}
inline void phyOnUnixData(PhySocket *sock,void **uptr,void *data,unsigned long len) {}
inline void phyOnUnixWritable(PhySocket *sock,void **uptr) {}
#endif // __UNIX_LIKE__
http_parser parser;
std::string currentHeaderField;
std::string currentHeaderValue;
unsigned long messageSize;
unsigned long writePtr;
uint64_t lastActivity;
std::string writeBuf;
unsigned long maxResponseSize;
std::map<std::string,std::string> *responseHeaders;
std::string *responseBody;
bool error;
bool done;
Phy<HttpPhyHandler *> *phy;
PhySocket *sock;
};
static int ShttpOnMessageBegin(http_parser *parser)
{
return 0;
}
static int ShttpOnUrl(http_parser *parser,const char *ptr,size_t length)
{
return 0;
}
#if (HTTP_PARSER_VERSION_MAJOR >= 2) && (HTTP_PARSER_VERSION_MINOR >= 2)
static int ShttpOnStatus(http_parser *parser,const char *ptr,size_t length)
#else
static int ShttpOnStatus(http_parser *parser)
#endif
{
/*
HttpPhyHandler *hh = reinterpret_cast<HttpPhyHandler *>(parser->data);
hh->messageSize += (unsigned long)length;
if (hh->messageSize > hh->maxResponseSize)
return -1;
*/
return 0;
}
static int ShttpOnHeaderField(http_parser *parser,const char *ptr,size_t length)
{
HttpPhyHandler *hh = reinterpret_cast<HttpPhyHandler *>(parser->data);
hh->messageSize += (unsigned long)length;
if (hh->messageSize > hh->maxResponseSize)
return -1;
if ((hh->currentHeaderField.length())&&(hh->currentHeaderValue.length())) {
(*hh->responseHeaders)[hh->currentHeaderField] = hh->currentHeaderValue;
hh->currentHeaderField = "";
hh->currentHeaderValue = "";
}
for(size_t i=0;i<length;++i)
hh->currentHeaderField.push_back(OSUtils::toLower(ptr[i]));
return 0;
}
static int ShttpOnValue(http_parser *parser,const char *ptr,size_t length)
{
HttpPhyHandler *hh = reinterpret_cast<HttpPhyHandler *>(parser->data);
hh->messageSize += (unsigned long)length;
if (hh->messageSize > hh->maxResponseSize)
return -1;
hh->currentHeaderValue.append(ptr,length);
return 0;
}
static int ShttpOnHeadersComplete(http_parser *parser)
{
HttpPhyHandler *hh = reinterpret_cast<HttpPhyHandler *>(parser->data);
if ((hh->currentHeaderField.length())&&(hh->currentHeaderValue.length()))
(*hh->responseHeaders)[hh->currentHeaderField] = hh->currentHeaderValue;
return 0;
}
static int ShttpOnBody(http_parser *parser,const char *ptr,size_t length)
{
HttpPhyHandler *hh = reinterpret_cast<HttpPhyHandler *>(parser->data);
hh->messageSize += (unsigned long)length;
if (hh->messageSize > hh->maxResponseSize)
return -1;
hh->responseBody->append(ptr,length);
return 0;
}
static int ShttpOnMessageComplete(http_parser *parser)
{
HttpPhyHandler *hh = reinterpret_cast<HttpPhyHandler *>(parser->data);
hh->phy->close(hh->sock);
return 0;
}
} // anonymous namespace
unsigned int Http::_do(
const char *method,
unsigned long maxResponseSize,
unsigned long timeout,
const struct sockaddr *remoteAddress,
const char *path,
const std::map<std::string,std::string> &requestHeaders,
const void *requestBody,
unsigned long requestBodyLength,
std::map<std::string,std::string> &responseHeaders,
std::string &responseBody)
{
try {
responseHeaders.clear();
responseBody = "";
HttpPhyHandler handler;
http_parser_init(&(handler.parser),HTTP_RESPONSE);
handler.parser.data = (void *)&handler;
handler.messageSize = 0;
handler.writePtr = 0;
handler.lastActivity = OSUtils::now();
try {
char tmp[1024];
OSUtils::ztsnprintf(tmp,sizeof(tmp),"%s %s HTTP/1.1\r\n",method,path);
handler.writeBuf.append(tmp);
for(std::map<std::string,std::string>::const_iterator h(requestHeaders.begin());h!=requestHeaders.end();++h) {
OSUtils::ztsnprintf(tmp,sizeof(tmp),"%s: %s\r\n",h->first.c_str(),h->second.c_str());
handler.writeBuf.append(tmp);
}
handler.writeBuf.append("\r\n");
if ((requestBody)&&(requestBodyLength))
handler.writeBuf.append((const char *)requestBody,requestBodyLength);
} catch ( ... ) {
responseBody = "request too large";
return 0;
}
if (maxResponseSize) {
handler.maxResponseSize = maxResponseSize;
} else {
handler.maxResponseSize = 2147483647;
}
handler.responseHeaders = &responseHeaders;
handler.responseBody = &responseBody;
handler.error = false;
handler.done = false;
Phy<HttpPhyHandler *> phy(&handler,true,true);
bool instantConnect = false;
handler.phy = &phy;
handler.sock = phy.tcpConnect((const struct sockaddr *)remoteAddress,instantConnect,(void *)0,true);
if (!handler.sock) {
responseBody = "connection failed (2)";
return 0;
}
while (!handler.done) {
phy.poll(timeout / 2);
if ((timeout)&&((unsigned long)(OSUtils::now() - handler.lastActivity) > timeout)) {
phy.close(handler.sock);
responseBody = "timed out";
return 0;
}
}
return ((handler.error) ? 0 : ((handler.parser.http_errno != HPE_OK) ? 0 : handler.parser.status_code));
} catch (std::exception &exc) {
responseBody = exc.what();
return 0;
} catch ( ... ) {
responseBody = "unknown exception";
return 0;
}
}
} // namespace ZeroTier

182
attic/Http.hpp
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@ -1,182 +0,0 @@
/*
* Copyright (c)2019 ZeroTier, Inc.
*
* Use of this software is governed by the Business Source License included
* in the LICENSE.TXT file in the project's root directory.
*
* Change Date: 2023-01-01
*
* On the date above, in accordance with the Business Source License, use
* of this software will be governed by version 2.0 of the Apache License.
*/
/****/
#ifndef ZT_HTTP_HPP
#define ZT_HTTP_HPP
#include <string>
#include <map>
#include <stdexcept>
#if defined(_WIN32) || defined(_WIN64)
#include <WinSock2.h>
#include <WS2tcpip.h>
#include <Windows.h>
#else
#include <unistd.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#endif
namespace ZeroTier {
/**
* Simple synchronous HTTP client used for updater and cli
*/
class Http
{
public:
/**
* Make HTTP GET request
*
* The caller must set all headers, including Host.
*
* @return HTTP status code or 0 on error (responseBody will contain error message)
*/
static inline unsigned int GET(
unsigned long maxResponseSize,
unsigned long timeout,
const struct sockaddr *remoteAddress,
const char *path,
const std::map<std::string,std::string> &requestHeaders,
std::map<std::string,std::string> &responseHeaders,
std::string &responseBody)
{
return _do(
"GET",
maxResponseSize,
timeout,
remoteAddress,
path,
requestHeaders,
(const void *)0,
0,
responseHeaders,
responseBody);
}
/**
* Make HTTP DELETE request
*
* The caller must set all headers, including Host.
*
* @return HTTP status code or 0 on error (responseBody will contain error message)
*/
static inline unsigned int DEL(
unsigned long maxResponseSize,
unsigned long timeout,
const struct sockaddr *remoteAddress,
const char *path,
const std::map<std::string,std::string> &requestHeaders,
std::map<std::string,std::string> &responseHeaders,
std::string &responseBody)
{
return _do(
"DELETE",
maxResponseSize,
timeout,
remoteAddress,
path,
requestHeaders,
(const void *)0,
0,
responseHeaders,
responseBody);
}
/**
* Make HTTP POST request
*
* It is the responsibility of the caller to set all headers. With POST, the
* Content-Length and Content-Type headers must be set or the POST will not
* work.
*
* @return HTTP status code or 0 on error (responseBody will contain error message)
*/
static inline unsigned int POST(
unsigned long maxResponseSize,
unsigned long timeout,
const struct sockaddr *remoteAddress,
const char *path,
const std::map<std::string,std::string> &requestHeaders,
const void *postData,
unsigned long postDataLength,
std::map<std::string,std::string> &responseHeaders,
std::string &responseBody)
{
return _do(
"POST",
maxResponseSize,
timeout,
remoteAddress,
path,
requestHeaders,
postData,
postDataLength,
responseHeaders,
responseBody);
}
/**
* Make HTTP PUT request
*
* It is the responsibility of the caller to set all headers. With PUT, the
* Content-Length and Content-Type headers must be set or the PUT will not
* work.
*
* @return HTTP status code or 0 on error (responseBody will contain error message)
*/
static inline unsigned int PUT(
unsigned long maxResponseSize,
unsigned long timeout,
const struct sockaddr *remoteAddress,
const char *path,
const std::map<std::string,std::string> &requestHeaders,
const void *postData,
unsigned long postDataLength,
std::map<std::string,std::string> &responseHeaders,
std::string &responseBody)
{
return _do(
"PUT",
maxResponseSize,
timeout,
remoteAddress,
path,
requestHeaders,
postData,
postDataLength,
responseHeaders,
responseBody);
}
private:
static unsigned int _do(
const char *method,
unsigned long maxResponseSize,
unsigned long timeout,
const struct sockaddr *remoteAddress,
const char *path,
const std::map<std::string,std::string> &requestHeaders,
const void *requestBody,
unsigned long requestBodyLength,
std::map<std::string,std::string> &responseHeaders,
std::string &responseBody);
};
} // namespace ZeroTier
#endif

1177
attic/Phy.hpp
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File diff suppressed because it is too large Load diff

14
attic/PortMapper-libnatpmp.c
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#define ENABLE_STRNATPMPERR
#define _BSD_SOURCE
#define _DEFAULT_SOURCE
#define _XOPEN_SOURCE 600
#ifdef __APPLE__
#ifndef _DARWIN_C_SOURCE
#define _DARWIN_C_SOURCE
#endif
#endif
#include "../ext/libnatpmp/getgateway.c"
#include "../ext/libnatpmp/wingettimeofday.c"
#include "../ext/libnatpmp/natpmp.c"

41
attic/PortMapper-miniupnpc.c
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@ -1,41 +0,0 @@
#define MINIUPNP_STATICLIB
#define MINIUPNPC_SET_SOCKET_TIMEOUT
#define MINIUPNPC_GET_SRC_ADDR
#define _BSD_SOURCE
#define _DEFAULT_SOURCE
#define _XOPEN_SOURCE 600
#define MINIUPNPC_VERSION_STRING "2.0"
#define UPNP_VERSION_STRING "UPnP/1.1"
#ifdef __LINUX__
#define OS_STRING "Linux"
#endif
#ifdef __APPLE__
#define OS_STRING "Darwin"
#endif
#ifdef __WINDOWS__
#define OS_STRING "Windows"
#endif
#ifndef OS_STRING
#define OS_STRING "ZeroTier"
#endif
#ifdef __APPLE__
#ifndef _DARWIN_C_SOURCE
#define _DARWIN_C_SOURCE
#endif
#endif
#include "../ext/miniupnpc/connecthostport.c"
#include "../ext/miniupnpc/igd_desc_parse.c"
#include "../ext/miniupnpc/minisoap.c"
#include "../ext/miniupnpc/miniupnpc.c"
#include "../ext/miniupnpc/miniwget.c"
#include "../ext/miniupnpc/minixml.c"
#include "../ext/miniupnpc/portlistingparse.c"
#include "../ext/miniupnpc/receivedata.c"
#include "../ext/miniupnpc/upnpcommands.c"
#include "../ext/miniupnpc/upnpdev.c"
#include "../ext/miniupnpc/upnperrors.c"
#include "../ext/miniupnpc/upnpreplyparse.c"
#include "../ext/miniupnpc/minissdpc.c"

334
attic/PortMapper.cpp
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@ -1,334 +0,0 @@
/*
* Copyright (c)2019 ZeroTier, Inc.
*
* Use of this software is governed by the Business Source License included
* in the LICENSE.TXT file in the project's root directory.
*
* Change Date: 2023-01-01
*
* On the date above, in accordance with the Business Source License, use
* of this software will be governed by version 2.0 of the Apache License.
*/
/****/
// Uncomment to dump debug messages
//#define ZT_PORTMAPPER_TRACE 1
#ifdef __ANDROID__
#include <android/log.h>
#define PM_TRACE(...) ((void)__android_log_print(ANDROID_LOG_DEBUG, "PortMapper", __VA_ARGS__))
#else
#define PM_TRACE(...) fprintf(stderr, __VA_ARGS__)
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <string>
#include "../node/Utils.hpp"
#include "OSUtils.hpp"
#include "PortMapper.hpp"
// These must be defined to get rid of dynamic export stuff in libminiupnpc and libnatpmp
#ifdef __WINDOWS__
#ifndef MINIUPNP_STATICLIB
#define MINIUPNP_STATICLIB
#endif
#ifndef STATICLIB
#define STATICLIB
#endif
#endif
#ifdef ZT_USE_SYSTEM_MINIUPNPC
#include <miniupnpc/miniupnpc.h>
#include <miniupnpc/upnpcommands.h>
#else
#ifdef __ANDROID__
#include "miniupnpc.h"
#include "upnpcommands.h"
#else
#include "../ext/miniupnpc/miniupnpc.h"
#include "../ext/miniupnpc/upnpcommands.h"
#endif
#endif
#ifdef ZT_USE_SYSTEM_NATPMP
#include <natpmp.h>
#else
#ifdef __ANDROID__
#include "natpmp.h"
#else
#include "../ext/libnatpmp/natpmp.h"
#endif
#endif
namespace ZeroTier {
class PortMapperImpl
{
public:
PortMapperImpl(int localUdpPortToMap,const char *un) :
run(true),
localPort(localUdpPortToMap),
uniqueName(un)
{
}
~PortMapperImpl() {}
void threadMain()
throw()
{
int mode = 0; // 0 == NAT-PMP, 1 == UPnP
#ifdef ZT_PORTMAPPER_TRACE
fprintf(stderr,"PortMapper: started for UDP port %d" ZT_EOL_S,localPort);
#endif
while (run) {
// ---------------------------------------------------------------------
// NAT-PMP mode (preferred)
// ---------------------------------------------------------------------
if (mode == 0) {
natpmp_t natpmp;
natpmpresp_t response;
int r = 0;
bool natPmpSuccess = false;
for(int tries=0;tries<60;++tries) {
int tryPort = (int)localPort + tries;
if (tryPort >= 65535)
tryPort = (tryPort - 65535) + 1025;
memset(&natpmp,0,sizeof(natpmp));
memset(&response,0,sizeof(response));
if (initnatpmp(&natpmp,0,0) != 0) {
mode = 1;
closenatpmp(&natpmp);
#ifdef ZT_PORTMAPPER_TRACE
PM_TRACE("PortMapper: NAT-PMP: init failed, switching to UPnP mode" ZT_EOL_S);
#endif
break;
}
InetAddress publicAddress;
sendpublicaddressrequest(&natpmp);
int64_t myTimeout = OSUtils::now() + 5000;
do {
fd_set fds;
struct timeval timeout;
FD_ZERO(&fds);
FD_SET(natpmp.s, &fds);
getnatpmprequesttimeout(&natpmp, &timeout);
select(FD_SETSIZE, &fds, NULL, NULL, &timeout);
r = readnatpmpresponseorretry(&natpmp, &response);
if (OSUtils::now() >= myTimeout)
break;
} while (r == NATPMP_TRYAGAIN);
if (r == 0) {
publicAddress = InetAddress((uint32_t)response.pnu.publicaddress.addr.s_addr,0);
} else {
#ifdef ZT_PORTMAPPER_TRACE
PM_TRACE("PortMapper: NAT-PMP: request for external address failed, aborting..." ZT_EOL_S);
#endif
closenatpmp(&natpmp);
break;
}
sendnewportmappingrequest(&natpmp,NATPMP_PROTOCOL_UDP,localPort,tryPort,(ZT_PORTMAPPER_REFRESH_DELAY * 2) / 1000);
myTimeout = OSUtils::now() + 10000;
do {
fd_set fds;
struct timeval timeout;
FD_ZERO(&fds);
FD_SET(natpmp.s, &fds);
getnatpmprequesttimeout(&natpmp, &timeout);
select(FD_SETSIZE, &fds, NULL, NULL, &timeout);
r = readnatpmpresponseorretry(&natpmp, &response);
if (OSUtils::now() >= myTimeout)
break;
} while (r == NATPMP_TRYAGAIN);
if (r == 0) {
publicAddress.setPort(response.pnu.newportmapping.mappedpublicport);
#ifdef ZT_PORTMAPPER_TRACE
char paddr[128];
PM_TRACE("PortMapper: NAT-PMP: mapped %u to %s" ZT_EOL_S,(unsigned int)localPort,publicAddress.toString(paddr));
#endif
Mutex::Lock sl(surface_l);
surface.clear();
surface.push_back(publicAddress);
natPmpSuccess = true;
closenatpmp(&natpmp);
break;
} else {
closenatpmp(&natpmp);
// continue
}
}
if (!natPmpSuccess) {
mode = 1;
#ifdef ZT_PORTMAPPER_TRACE
PM_TRACE("PortMapper: NAT-PMP: request failed, switching to UPnP mode" ZT_EOL_S);
#endif
}
}
// ---------------------------------------------------------------------
// ---------------------------------------------------------------------
// UPnP mode
// ---------------------------------------------------------------------
if (mode == 1) {
char lanaddr[4096];
char externalip[4096]; // no range checking? so make these buffers larger than any UDP packet a uPnP server could send us as a precaution :P
char inport[16];
char outport[16];
struct UPNPUrls urls;
struct IGDdatas data;
int upnpError = 0;
UPNPDev *devlist = upnpDiscoverAll(5000,(const char *)0,(const char *)0,0,0,2,&upnpError);
if (devlist) {
#ifdef ZT_PORTMAPPER_TRACE
{
UPNPDev *dev = devlist;
while (dev) {
PM_TRACE("PortMapper: found UPnP device at URL '%s': %s" ZT_EOL_S,dev->descURL,dev->st);
dev = dev->pNext;
}
}
#endif
memset(lanaddr,0,sizeof(lanaddr));
memset(externalip,0,sizeof(externalip));
memset(&urls,0,sizeof(urls));
memset(&data,0,sizeof(data));
OSUtils::ztsnprintf(inport,sizeof(inport),"%d",localPort);
if ((UPNP_GetValidIGD(devlist,&urls,&data,lanaddr,sizeof(lanaddr)))&&(lanaddr[0])) {
#ifdef ZT_PORTMAPPER_TRACE
PM_TRACE("PortMapper: UPnP: my LAN IP address: %s" ZT_EOL_S,lanaddr);
#endif
if ((UPNP_GetExternalIPAddress(urls.controlURL,data.first.servicetype,externalip) == UPNPCOMMAND_SUCCESS)&&(externalip[0])) {
#ifdef ZT_PORTMAPPER_TRACE
PM_TRACE("PortMapper: UPnP: my external IP address: %s" ZT_EOL_S,externalip);
#endif
for(int tries=0;tries<60;++tries) {
int tryPort = (int)localPort + tries;
if (tryPort >= 65535)
tryPort = (tryPort - 65535) + 1025;
OSUtils::ztsnprintf(outport,sizeof(outport),"%u",tryPort);
// First check and see if this port is already mapped to the
// same unique name. If so, keep this mapping and don't try
// to map again since this can break buggy routers. But don't
// fail if this command fails since not all routers support it.
{
char haveIntClient[128]; // 128 == big enough for all these as per miniupnpc "documentation"
char haveIntPort[128];
char haveDesc[128];
char haveEnabled[128];
char haveLeaseDuration[128];
memset(haveIntClient,0,sizeof(haveIntClient));
memset(haveIntPort,0,sizeof(haveIntPort));
memset(haveDesc,0,sizeof(haveDesc));
memset(haveEnabled,0,sizeof(haveEnabled));
memset(haveLeaseDuration,0,sizeof(haveLeaseDuration));
if ((UPNP_GetSpecificPortMappingEntry(urls.controlURL,data.first.servicetype,outport,"UDP",(const char *)0,haveIntClient,haveIntPort,haveDesc,haveEnabled,haveLeaseDuration) == UPNPCOMMAND_SUCCESS)&&(uniqueName == haveDesc)) {
#ifdef ZT_PORTMAPPER_TRACE
PM_TRACE("PortMapper: UPnP: reusing previously reserved external port: %s" ZT_EOL_S,outport);
#endif
Mutex::Lock sl(surface_l);
surface.clear();
InetAddress tmp(externalip);
tmp.setPort(tryPort);
surface.push_back(tmp);
break;
}
}
// Try to map this port
int mapResult = 0;
if ((mapResult = UPNP_AddPortMapping(urls.controlURL,data.first.servicetype,outport,inport,lanaddr,uniqueName.c_str(),"UDP",(const char *)0,"0")) == UPNPCOMMAND_SUCCESS) {
#ifdef ZT_PORTMAPPER_TRACE
PM_TRACE("PortMapper: UPnP: reserved external port: %s" ZT_EOL_S,outport);
#endif
Mutex::Lock sl(surface_l);
surface.clear();
InetAddress tmp(externalip);
tmp.setPort(tryPort);
surface.push_back(tmp);
break;
} else {
#ifdef ZT_PORTMAPPER_TRACE
PM_TRACE("PortMapper: UPnP: UPNP_AddPortMapping(%s) failed: %d" ZT_EOL_S,outport,mapResult);
#endif
Thread::sleep(1000);
}
}
} else {
mode = 0;
#ifdef ZT_PORTMAPPER_TRACE
PM_TRACE("PortMapper: UPnP: UPNP_GetExternalIPAddress failed, returning to NAT-PMP mode" ZT_EOL_S);
#endif
}
} else {
mode = 0;
#ifdef ZT_PORTMAPPER_TRACE
PM_TRACE("PortMapper: UPnP: UPNP_GetValidIGD failed, returning to NAT-PMP mode" ZT_EOL_S);
#endif
}
freeUPNPDevlist(devlist);
} else {
mode = 0;
#ifdef ZT_PORTMAPPER_TRACE
PM_TRACE("PortMapper: upnpDiscover failed, returning to NAT-PMP mode: %d" ZT_EOL_S,upnpError);
#endif
}
}
// ---------------------------------------------------------------------
#ifdef ZT_PORTMAPPER_TRACE
PM_TRACE("UPNPClient: rescanning in %d ms" ZT_EOL_S,ZT_PORTMAPPER_REFRESH_DELAY);
#endif
Thread::sleep(ZT_PORTMAPPER_REFRESH_DELAY);
}
delete this;
}
volatile bool run;
int localPort;
std::string uniqueName;
Mutex surface_l;
std::vector<InetAddress> surface;
};
PortMapper::PortMapper(int localUdpPortToMap,const char *uniqueName)
{
_impl = new PortMapperImpl(localUdpPortToMap,uniqueName);
Thread::start(_impl);
}
PortMapper::~PortMapper()
{
_impl->run = false;
}
std::vector<InetAddress> PortMapper::get() const
{
Mutex::Lock _l(_impl->surface_l);
return _impl->surface;
}
} // namespace ZeroTier

62
attic/PortMapper.hpp
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@ -1,62 +0,0 @@
/*
* Copyright (c)2019 ZeroTier, Inc.
*
* Use of this software is governed by the Business Source License included
* in the LICENSE.TXT file in the project's root directory.
*
* Change Date: 2023-01-01
*
* On the date above, in accordance with the Business Source License, use
* of this software will be governed by version 2.0 of the Apache License.
*/
/****/
#ifndef ZT_PORTMAPPER_HPP
#define ZT_PORTMAPPER_HPP
#include <vector>
#include "../node/Constants.hpp"
#include "../node/InetAddress.hpp"
#include "../node/Mutex.hpp"
#include "Thread.hpp"
/**
* How frequently should we refresh our UPNP/NAT-PnP/whatever state?
*/
#define ZT_PORTMAPPER_REFRESH_DELAY 120000
namespace ZeroTier {
class PortMapperImpl;
/**
* UPnP/NAT-PnP port mapping "daemon"
*/
class PortMapper
{
friend class PortMapperImpl;
public:
/**
* Create and start port mapper service
*
* @param localUdpPortToMap Port we want visible to the outside world
* @param name Unique name of this endpoint (based on ZeroTier address)
*/
PortMapper(int localUdpPortToMap,const char *uniqueName);
~PortMapper();
/**
* @return All current external mappings for our port
*/
std::vector<InetAddress> get() const;
private:
PortMapperImpl *_impl;
};
} // namespace ZeroTier
#endif

182
attic/Root.hpp
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@ -1,182 +0,0 @@
/*
* Copyright (c)2019 ZeroTier, Inc.
*
* Use of this software is governed by the Business Source License included
* in the LICENSE.TXT file in the project's root directory.
*
* Change Date: 2023-01-01
*
* On the date above, in accordance with the Business Source License, use
* of this software will be governed by version 2.0 of the Apache License.
*/
/****/
#ifndef ZT_ROOT_HPP
#define ZT_ROOT_HPP
#include "Constants.hpp"
#include "Str.hpp"
#include "ECC384.hpp"
#include "Locator.hpp"
#include "InetAddress.hpp"
#include "Utils.hpp"
#include "Identity.hpp"
#include "Mutex.hpp"
namespace ZeroTier {
/**
* A root entry pointing to a node capable of global identity lookup and indirect transit
*
* Root entries point to DNS records that contain TXT entries that decode to Locator objects
* pointing to actual root nodes. A default root identity and static addresses can also be
* provided as fallback if DNS is not available.
*
* Note that root identities can change if DNS returns a different result, but that DNS entries
* are authenticated using their own signature scheme. This allows a root DNS name to serve
* up different roots based on factors like location or relative load of different roots.
*
* It's also possible to create a root with no DNS and no DNS validator public key. This root
* will be a static entry pointing to a single root identity and set of physical addresses.
*/
class Root
{
public:
ZT_ALWAYS_INLINE Root() : _dnsPublicKeySize(0) {}
/**
* Create a new root entry
*
* @param dn DNS name
* @param dnspk DNS public key for record validation
* @param dnspksize Size of DNS public key (currently always the size of a NIST P-384 point compressed public key)
* @param dflId Default identity if DNS is not available
* @param dflAddrs Default IP addresses if DNS is not available
*/
template<typename S>
ZT_ALWAYS_INLINE Root(S dn,const uint8_t *const dnspk,const unsigned int dnspksize,const Identity &dflId,const std::vector<InetAddress> &dflAddrs) :
_defaultIdentity(dflId),
_defaultAddresses(dflAddrs),
_dnsName(dn),
_dnsPublicKeySize(dnspksize)
{
if (dnspksize != 0) {
if (dnspksize > sizeof(_dnsPublicKey))
throw ZT_EXCEPTION_INVALID_ARGUMENT;
memcpy(_dnsPublicKey,dnspk,dnspksize);
}
}
/**
* @return Current identity (either default or latest locator)
*/
ZT_ALWAYS_INLINE const Identity id() const
{
if (_lastFetchedLocator.id())
return _lastFetchedLocator.id();
return _defaultIdentity;
}
/**
* @param id Identity to check
* @return True if identity equals this root's current identity
*/
ZT_ALWAYS_INLINE bool is(const Identity &id) const
{
return ((_lastFetchedLocator.id()) ? (id == _lastFetchedLocator.id()) : (id == _defaultIdentity));
}
/**
* @return Current ZeroTier address (either default or latest locator)
*/
ZT_ALWAYS_INLINE const Address address() const
{
if (_lastFetchedLocator.id())
return _lastFetchedLocator.id().address();
return _defaultIdentity.address();
}
/**
* @return DNS name for this root or empty string if static entry with no DNS
*/
ZT_ALWAYS_INLINE const Str dnsName() const { return _dnsName; }
/**
* @return Latest locator or NIL locator object if none
*/
ZT_ALWAYS_INLINE Locator locator() const { return _lastFetchedLocator; }
/**
* @return Timestamp of latest retrieved locator or 0 if none
*/
ZT_ALWAYS_INLINE int64_t locatorTimestamp() const { return _lastFetchedLocator.timestamp(); }
/**
* Update locator, returning true if new locator is valid and newer than existing
*/
ZT_ALWAYS_INLINE bool updateLocator(const Locator &loc)
{
if (!loc.verify())
return false;
if ((loc.phy().size() > 0)&&(loc.timestamp() > _lastFetchedLocator.timestamp())) {
_lastFetchedLocator = loc;
return true;
}
return false;
}
/**
* Update this root's locator from a series of TXT records
*/
template<typename I>
ZT_ALWAYS_INLINE bool updateLocatorFromTxt(I start,I end)
{
try {
if (_dnsPublicKeySize != ZT_ECC384_PUBLIC_KEY_SIZE)
return false;
Locator loc;
if (!loc.decodeTxtRecords(start,end,_dnsPublicKey)) // also does verify()
return false;
if ((loc.phy().size() > 0)&&(loc.timestamp() > _lastFetchedLocator.timestamp())) {
_lastFetchedLocator = loc;
return true;
}
return false;
} catch ( ... ) {}
return false;
}
/**
* Pick a random physical IP for this root with the given address family
*
* @param addressFamily AF_INET or AF_INET6
* @return Address or InetAddress::NIL if no addresses exist for the given family
*/
ZT_ALWAYS_INLINE const InetAddress &pickPhysical(const int addressFamily) const
{
std::vector<const InetAddress *> pickList;
const std::vector<InetAddress> *const av = (_lastFetchedLocator) ? &(_lastFetchedLocator.phy()) : &_defaultAddresses;
for(std::vector<InetAddress>::const_iterator i(av->begin());i!=av->end();++i) {
if (addressFamily == (int)i->ss_family) {
pickList.push_back(&(*i));
}
}
if (pickList.size() == 1)
return *pickList[0];
else if (pickList.size() > 1)
return *pickList[(unsigned long)Utils::random() % (unsigned long)pickList.size()];
return InetAddress::NIL;
}
private:
Identity _defaultIdentity;
std::vector<InetAddress> _defaultAddresses;
Str _dnsName;
Locator _lastFetchedLocator;
unsigned int _dnsPublicKeySize;
uint8_t _dnsPublicKey[ZT_ECC384_PUBLIC_KEY_SIZE];
};
} // namespace ZeroTier
#endif

18
attic/linux-old-glibc-compat.c
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@ -1,18 +0,0 @@
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
__asm__(".symver memcpy,memcpy@GLIBC_2.2.5");
#ifdef __cplusplus
extern "C" {
#endif
extern void *__wrap_memcpy(void *dest,const void *src,size_t n)
{
return memcpy(dest,src,n);
}
#ifdef __cplusplus
}
#endif

30
attic/listaddrinfo.go
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@ -1,30 +0,0 @@
package main
import (
"fmt"
"net"
)
func main() {
ifs, err := net.Interfaces()
if err != nil {
fmt.Printf("Error: %s\n", err.Error())
return
}
for _, i := range ifs {
fmt.Printf("name: %s\n", i.Name)
fmt.Printf("hwaddr: %s\n", i.HardwareAddr.String())
fmt.Printf("index: %d\n", i.Index)
fmt.Printf("addrs:\n")
addrs, _ := i.Addrs()
for _, a := range addrs {
fmt.Printf(" %s\n", a.String())
}
fmt.Printf("multicast:\n")
mc, _ := i.MulticastAddrs()
for _, m := range mc {
fmt.Printf(" %s\n", m.String())
}
fmt.Printf("\n")
}
}

1542
attic/one.cpp
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