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OneService.cpp
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/*
* Copyright (c)2013-2020 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: 2026-01-01
*
* 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 <exception>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <string>
#include <map>
#include <vector>
#include <algorithm>
#include <list>
#include <thread>
#include <mutex>
#include <condition_variable>
#ifdef __FreeBSD__
#include <sched.h>
#include <pthread_np.h>
#endif
#include "../version.h"
#include "../include/ZeroTierOne.h"
#include "../node/Constants.hpp"
#include "../node/Mutex.hpp"
#include "../node/Node.hpp"
#include "../node/Utils.hpp"
#include "../node/InetAddress.hpp"
#include "../node/MAC.hpp"
#include "../node/Identity.hpp"
#include "../node/World.hpp"
#include "../node/Salsa20.hpp"
#include "../node/Poly1305.hpp"
#include "../node/SHA512.hpp"
#include "../node/Bond.hpp"
#include "../node/Peer.hpp"
#include "../node/PacketMultiplexer.hpp"
#include "../osdep/Phy.hpp"
#include "../osdep/OSUtils.hpp"
#include "../osdep/Http.hpp"
#include "../osdep/PortMapper.hpp"
#include "../osdep/Binder.hpp"
#include "../osdep/ManagedRoute.hpp"
#include "../osdep/BlockingQueue.hpp"
#include "OneService.hpp"
#include "SoftwareUpdater.hpp"
#include <cpp-httplib/httplib.h>
#if ZT_SSO_ENABLED
#include <zeroidc.h>
#endif
#ifdef __WINDOWS__
#include <winsock2.h>
#include <windows.h>
#include <shlobj.h>
#include <netioapi.h>
#include <iphlpapi.h>
//#include <unistd.h>
#define stat _stat
#else
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <unistd.h>
#include <ifaddrs.h>
#endif
#ifdef __APPLE__
#include "../osdep/MacDNSHelper.hpp"
#elif defined(__WINDOWS__)
#include "../osdep/WinDNSHelper.hpp"
#include "../osdep/WinFWHelper.hpp"
#endif
#ifdef ZT_USE_SYSTEM_HTTP_PARSER
#include <http_parser.h>
#else
#include "../ext/http-parser/http_parser.h"
#endif
#include "../node/Metrics.hpp"
#if ZT_VAULT_SUPPORT
extern "C" {
#include <curl/curl.h>
}
#endif
#include <nlohmann/json.hpp>
#include <inja/inja.hpp>
using json = nlohmann::json;
#include "../controller/EmbeddedNetworkController.hpp"
#include "../controller/PostgreSQL.hpp"
#include "../controller/Redis.hpp"
#include "../osdep/EthernetTap.hpp"
#ifdef __WINDOWS__
#include "../osdep/WindowsEthernetTap.hpp"
#endif
#ifndef ZT_SOFTWARE_UPDATE_DEFAULT
#define ZT_SOFTWARE_UPDATE_DEFAULT "disable"
#endif
// Sanity limits for HTTP
#define ZT_MAX_HTTP_MESSAGE_SIZE (1024 * 1024 * 64)
#define ZT_MAX_HTTP_CONNECTIONS 65536
// Interface metric for ZeroTier taps -- this ensures that if we are on WiFi and also
// bridged via ZeroTier to the same LAN traffic will (if the OS is sane) prefer WiFi.
#define ZT_IF_METRIC 5000
// How often to check for new multicast subscriptions on a tap device
#define ZT_TAP_CHECK_MULTICAST_INTERVAL 5000
// TCP fallback relay (run by ZeroTier, Inc. -- this will eventually go away)
#ifndef ZT_SDK
#define ZT_TCP_FALLBACK_RELAY "204.80.128.1/443"
#endif
// Frequency at which we re-resolve the TCP fallback relay
#define ZT_TCP_FALLBACK_RERESOLVE_DELAY 86400000
// Attempt to engage TCP fallback after this many ms of no reply to packets sent to global-scope IPs
#define ZT_TCP_FALLBACK_AFTER 60000
// How often to check for local interface addresses
#define ZT_LOCAL_INTERFACE_CHECK_INTERVAL 60000
// Maximum write buffer size for outgoing TCP connections (sanity limit)
#define ZT_TCP_MAX_WRITEQ_SIZE 33554432
// TCP activity timeout
#define ZT_TCP_ACTIVITY_TIMEOUT 60000
#if ZT_VAULT_SUPPORT
size_t curlResponseWrite(void *ptr, size_t size, size_t nmemb, std::string *data)
{
data->append((char*)ptr, size * nmemb);
return size * nmemb;
}
#endif
namespace ZeroTier {
std::string ssoResponseTemplate = R"""(
<!doctype html>
<html class="no-js" lang="">
<head>
<meta charset="utf-8">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<title>Network SSO Login {{ networkId }}</title>
<meta name="description" content="">
<meta name="viewport" content="width=device-width, initial-scale=1">
<style type="text/css">
html,body {
background: #eeeeee;
margin: 0;
padding: 0;
font-family: "System Sans Serif";
font-weight: normal;
font-size: 12pt;
height: 100%;
width: 100%;
}
.container {
position: absolute;
left: 50%;
top: 50%;
-webkit-transform: translate(-50%, -50%);
transform: translate(-50%, -50%);
}
.iconwrapper {
margin: 10px 10px 10px 10px;
}
</style>
</head>
<body>
<div class="container">
<div class="iconwrapper">
<svg id="Layer_1" width="225px" height="225px" data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 225 225"><defs><style>.cls-1{fill:#fdb25d;}.cls-2{fill:none;stroke:#000;stroke-miterlimit:10;stroke-width:6.99px;}</style></defs><rect class="cls-1" width="225" height="225" rx="35.74"/><line class="cls-2" x1="25.65" y1="32.64" x2="199.35" y2="32.64"/><line class="cls-2" x1="112.5" y1="201.02" x2="112.5" y2="32.64"/><circle class="cls-2" cx="112.5" cy="115.22" r="56.54"/></svg>
</div>
<div class="text">{{ messageText }}</div>
</div>
</body>
</html>
)""";
bool bearerTokenValid(const std::string authHeader, const std::string &checkToken) {
std::vector<std::string> tokens = OSUtils::split(authHeader.c_str(), " ", NULL, NULL);
if (tokens.size() != 2) {
return false;
}
std::string bearer = tokens[0];
std::string token = tokens[1];
std::transform(bearer.begin(), bearer.end(), bearer.begin(), [](unsigned char c){return std::tolower(c);});
if (bearer != "bearer") {
return false;
}
if (token != checkToken) {
return false;
}
return true;
}
#if ZT_DEBUG==1
std::string dump_headers(const httplib::Headers &headers) {
std::string s;
char buf[BUFSIZ];
for (auto it = headers.begin(); it != headers.end(); ++it) {
const auto &x = *it;
snprintf(buf, sizeof(buf), "%s: %s\n", x.first.c_str(), x.second.c_str());
s += buf;
}
return s;
}
std::string http_log(const httplib::Request &req, const httplib::Response &res) {
std::string s;
char buf[BUFSIZ];
s += "================================\n";
snprintf(buf, sizeof(buf), "%s %s %s", req.method.c_str(),
req.version.c_str(), req.path.c_str());
s += buf;
std::string query;
for (auto it = req.params.begin(); it != req.params.end(); ++it) {
const auto &x = *it;
snprintf(buf, sizeof(buf), "%c%s=%s",
(it == req.params.begin()) ? '?' : '&', x.first.c_str(),
x.second.c_str());
query += buf;
}
snprintf(buf, sizeof(buf), "%s\n", query.c_str());
s += buf;
s += dump_headers(req.headers);
s += "--------------------------------\n";
snprintf(buf, sizeof(buf), "%d %s\n", res.status, res.version.c_str());
s += buf;
s += dump_headers(res.headers);
s += "\n";
if (!res.body.empty()) { s += res.body; }
s += "\n";
return s;
}
#endif
// Configured networks
class NetworkState
{
public:
NetworkState()
: _webPort(9993)
, _tap((EthernetTap *)0)
#if ZT_SSO_ENABLED
, _idc(nullptr)
#endif
{
// Real defaults are in network 'up' code in network event handler
_settings.allowManaged = true;
_settings.allowGlobal = false;
_settings.allowDefault = false;
_settings.allowDNS = false;
memset(&_config, 0, sizeof(ZT_VirtualNetworkConfig));
}
~NetworkState()
{
this->_managedRoutes.clear();
this->_tap.reset();
#if ZT_SSO_ENABLED
if (_idc) {
zeroidc::zeroidc_stop(_idc);
zeroidc::zeroidc_delete(_idc);
_idc = nullptr;
}
#endif
}
void setWebPort(unsigned int port) {
_webPort = port;
}
void setTap(std::shared_ptr<EthernetTap> tap) {
this->_tap = tap;
}
std::shared_ptr<EthernetTap> tap() const {
return _tap;
}
OneService::NetworkSettings settings() const {
return _settings;
}
void setSettings(const OneService::NetworkSettings &settings) {
_settings = settings;
}
void setAllowManaged(bool allow) {
_settings.allowManaged = allow;
}
bool allowManaged() const {
return _settings.allowManaged;
}
void setAllowGlobal(bool allow) {
_settings.allowGlobal = allow;
}
bool allowGlobal() const {
return _settings.allowGlobal;
}
void setAllowDefault(bool allow) {
_settings.allowDefault = allow;
}
bool allowDefault() const {
return _settings.allowDefault;
}
void setAllowDNS(bool allow) {
_settings.allowDNS = allow;
}
bool allowDNS() const {
return _settings.allowDNS;
}
std::vector<InetAddress> allowManagedWhitelist() const {
return _settings.allowManagedWhitelist;
}
void addToAllowManagedWhiteList(const InetAddress& addr) {
_settings.allowManagedWhitelist.push_back(addr);
}
const ZT_VirtualNetworkConfig& config() {
return _config;
}
void setConfig(const ZT_VirtualNetworkConfig *nwc) {
memcpy(&_config, nwc, sizeof(ZT_VirtualNetworkConfig));
if (_config.ssoEnabled && _config.ssoVersion == 1) {
#if ZT_SSO_ENABLED
if (_idc == nullptr)
{
assert(_config.issuerURL != nullptr);
assert(_config.ssoClientID != nullptr);
assert(_config.centralAuthURL != nullptr);
assert(_config.ssoProvider != nullptr);
_idc = zeroidc::zeroidc_new(
_config.issuerURL,
_config.ssoClientID,
_config.centralAuthURL,
_config.ssoProvider,
_webPort
);
if (_idc == nullptr) {
fprintf(stderr, "idc is null\n");
return;
}
}
zeroidc::zeroidc_set_nonce_and_csrf(
_idc,
_config.ssoState,
_config.ssoNonce
);
char* url = zeroidc::zeroidc_get_auth_url(_idc);
memcpy(_config.authenticationURL, url, strlen(url));
_config.authenticationURL[strlen(url)] = 0;
zeroidc::free_cstr(url);
if (zeroidc::zeroidc_is_running(_idc) && nwc->status == ZT_NETWORK_STATUS_AUTHENTICATION_REQUIRED) {
zeroidc::zeroidc_kick_refresh_thread(_idc);
}
#endif
}
}
std::vector<InetAddress>& managedIps() {
return _managedIps;
}
void setManagedIps(const std::vector<InetAddress> &managedIps) {
_managedIps = managedIps;
}
std::map< InetAddress, SharedPtr<ManagedRoute> >& managedRoutes() {
return _managedRoutes;
}
char* doTokenExchange(const char *code) {
char *ret = nullptr;
#if ZT_SSO_ENABLED
if (_idc == nullptr) {
fprintf(stderr, "ainfo or idc null\n");
return ret;
}
ret = zeroidc::zeroidc_token_exchange(_idc, code);
zeroidc::zeroidc_set_nonce_and_csrf(
_idc,
_config.ssoState,
_config.ssoNonce
);
char* url = zeroidc::zeroidc_get_auth_url(_idc);
memcpy(_config.authenticationURL, url, strlen(url));
_config.authenticationURL[strlen(url)] = 0;
zeroidc::free_cstr(url);
#endif
return ret;
}
uint64_t getExpiryTime() {
#if ZT_SSO_ENABLED
if (_idc == nullptr) {
fprintf(stderr, "idc is null\n");
return 0;
}
return zeroidc::zeroidc_get_exp_time(_idc);
#else
return 0;
#endif
}
private:
unsigned int _webPort;
std::shared_ptr<EthernetTap> _tap;
ZT_VirtualNetworkConfig _config; // memcpy() of raw config from core
std::vector<InetAddress> _managedIps;
std::map< InetAddress, SharedPtr<ManagedRoute> > _managedRoutes;
OneService::NetworkSettings _settings;
#if ZT_SSO_ENABLED
zeroidc::ZeroIDC *_idc;
#endif
};
namespace {
static const InetAddress NULL_INET_ADDR;
// Fake TLS hello for TCP tunnel outgoing connections (TUNNELED mode)
static const char ZT_TCP_TUNNEL_HELLO[9] = { 0x17,0x03,0x03,0x00,0x04,(char)ZEROTIER_ONE_VERSION_MAJOR,(char)ZEROTIER_ONE_VERSION_MINOR,(char)((ZEROTIER_ONE_VERSION_REVISION >> 8) & 0xff),(char)(ZEROTIER_ONE_VERSION_REVISION & 0xff) };
static std::string _trimString(const std::string &s)
{
unsigned long end = (unsigned long)s.length();
while (end) {
char c = s[end - 1];
if ((c == ' ')||(c == '\r')||(c == '\n')||(!c)||(c == '\t'))
--end;
else break;
}
unsigned long start = 0;
while (start < end) {
char c = s[start];
if ((c == ' ')||(c == '\r')||(c == '\n')||(!c)||(c == '\t'))
++start;
else break;
}
return s.substr(start,end - start);
}
static void _networkToJson(nlohmann::json &nj,NetworkState &ns)
{
char tmp[256];
const char *nstatus = "",*ntype = "";
switch(ns.config().status) {
case ZT_NETWORK_STATUS_REQUESTING_CONFIGURATION: nstatus = "REQUESTING_CONFIGURATION"; break;
case ZT_NETWORK_STATUS_OK: nstatus = "OK"; break;
case ZT_NETWORK_STATUS_ACCESS_DENIED: nstatus = "ACCESS_DENIED"; break;
case ZT_NETWORK_STATUS_NOT_FOUND: nstatus = "NOT_FOUND"; break;
case ZT_NETWORK_STATUS_PORT_ERROR: nstatus = "PORT_ERROR"; break;
case ZT_NETWORK_STATUS_CLIENT_TOO_OLD: nstatus = "CLIENT_TOO_OLD"; break;
case ZT_NETWORK_STATUS_AUTHENTICATION_REQUIRED: nstatus = "AUTHENTICATION_REQUIRED"; break;
}
switch(ns.config().type) {
case ZT_NETWORK_TYPE_PRIVATE: ntype = "PRIVATE"; break;
case ZT_NETWORK_TYPE_PUBLIC: ntype = "PUBLIC"; break;
}
OSUtils::ztsnprintf(tmp,sizeof(tmp),"%.16llx",ns.config().nwid);
nj["id"] = tmp;
nj["nwid"] = tmp;
OSUtils::ztsnprintf(tmp,sizeof(tmp),"%.2x:%.2x:%.2x:%.2x:%.2x:%.2x",(unsigned int)((ns.config().mac >> 40) & 0xff),(unsigned int)((ns.config().mac >> 32) & 0xff),(unsigned int)((ns.config().mac >> 24) & 0xff),(unsigned int)((ns.config().mac >> 16) & 0xff),(unsigned int)((ns.config().mac >> 8) & 0xff),(unsigned int)(ns.config().mac & 0xff));
nj["mac"] = tmp;
nj["name"] = ns.config().name;
nj["status"] = nstatus;
nj["type"] = ntype;
nj["mtu"] = ns.config().mtu;
nj["dhcp"] = (bool)(ns.config().dhcp != 0);
nj["bridge"] = (bool)(ns.config().bridge != 0);
nj["broadcastEnabled"] = (bool)(ns.config().broadcastEnabled != 0);
nj["portError"] = ns.config().portError;
nj["netconfRevision"] = ns.config().netconfRevision;
nj["portDeviceName"] = ns.tap()->deviceName();
OneService::NetworkSettings localSettings = ns.settings();
nj["allowManaged"] = localSettings.allowManaged;
nj["allowGlobal"] = localSettings.allowGlobal;
nj["allowDefault"] = localSettings.allowDefault;
nj["allowDNS"] = localSettings.allowDNS;
nlohmann::json aa = nlohmann::json::array();
for(unsigned int i=0;i<ns.config().assignedAddressCount;++i) {
aa.push_back(reinterpret_cast<const InetAddress *>(&(ns.config().assignedAddresses[i]))->toString(tmp));
}
nj["assignedAddresses"] = aa;
nlohmann::json ra = nlohmann::json::array();
for(unsigned int i=0;i<ns.config().routeCount;++i) {
nlohmann::json rj;
rj["target"] = reinterpret_cast<const InetAddress *>(&(ns.config().routes[i].target))->toString(tmp);
if (ns.config().routes[i].via.ss_family == ns.config().routes[i].target.ss_family)
rj["via"] = reinterpret_cast<const InetAddress *>(&(ns.config().routes[i].via))->toIpString(tmp);
else rj["via"] = nlohmann::json();
rj["flags"] = (int)ns.config().routes[i].flags;
rj["metric"] = (int)ns.config().routes[i].metric;
ra.push_back(rj);
}
nj["routes"] = ra;
nlohmann::json mca = nlohmann::json::array();
for(unsigned int i=0;i<ns.config().multicastSubscriptionCount;++i) {
nlohmann::json m;
m["mac"] = MAC(ns.config().multicastSubscriptions[i].mac).toString(tmp);
m["adi"] = ns.config().multicastSubscriptions[i].adi;
mca.push_back(m);
}
nj["multicastSubscriptions"] = mca;
nlohmann::json m;
m["domain"] = ns.config().dns.domain;
m["servers"] = nlohmann::json::array();
for(int j=0;j<ZT_MAX_DNS_SERVERS;++j) {
InetAddress a(ns.config().dns.server_addr[j]);
if (a.isV4() || a.isV6()) {
char buf[256];
m["servers"].push_back(a.toIpString(buf));
}
}
nj["dns"] = m;
if (ns.config().ssoEnabled) {
const char* authURL = ns.config().authenticationURL;
//fprintf(stderr, "Auth URL: %s\n", authURL);
nj["authenticationURL"] = authURL;
nj["authenticationExpiryTime"] = (ns.getExpiryTime()*1000);
nj["ssoEnabled"] = ns.config().ssoEnabled;
}
}
static void _peerToJson(nlohmann::json &pj,const ZT_Peer *peer, SharedPtr<Bond> &bond, bool isTunneled)
{
char tmp[256];
const char *prole = "";
switch(peer->role) {
case ZT_PEER_ROLE_LEAF: prole = "LEAF"; break;
case ZT_PEER_ROLE_MOON: prole = "MOON"; break;
case ZT_PEER_ROLE_PLANET: prole = "PLANET"; break;
}
OSUtils::ztsnprintf(tmp,sizeof(tmp),"%.10llx",peer->address);
pj["address"] = tmp;
pj["versionMajor"] = peer->versionMajor;
pj["versionMinor"] = peer->versionMinor;
pj["versionRev"] = peer->versionRev;
OSUtils::ztsnprintf(tmp,sizeof(tmp),"%d.%d.%d",peer->versionMajor,peer->versionMinor,peer->versionRev);
pj["version"] = tmp;
pj["latency"] = peer->latency;
pj["role"] = prole;
pj["isBonded"] = peer->isBonded;
pj["tunneled"] = isTunneled;
if (bond && peer->isBonded) {
pj["bondingPolicyCode"] = peer->bondingPolicy;
pj["bondingPolicyStr"] = Bond::getPolicyStrByCode(peer->bondingPolicy);
pj["numAliveLinks"] = peer->numAliveLinks;
pj["numTotalLinks"] = peer->numTotalLinks;
pj["failoverInterval"] = bond->getFailoverInterval();
pj["downDelay"] = bond->getDownDelay();
pj["upDelay"] = bond->getUpDelay();
pj["packetsPerLink"] = bond->getPacketsPerLink();
}
nlohmann::json pa = nlohmann::json::array();
for(unsigned int i=0;i<peer->pathCount;++i) {
int64_t lastSend = peer->paths[i].lastSend;
int64_t lastReceive = peer->paths[i].lastReceive;
nlohmann::json j;
j["address"] = reinterpret_cast<const InetAddress *>(&(peer->paths[i].address))->toString(tmp);
j["lastSend"] = (lastSend < 0) ? 0 : lastSend;
j["lastReceive"] = (lastReceive < 0) ? 0 : lastReceive;
j["trustedPathId"] = peer->paths[i].trustedPathId;
j["active"] = (bool)(peer->paths[i].expired == 0);
j["expired"] = (bool)(peer->paths[i].expired != 0);
j["preferred"] = (bool)(peer->paths[i].preferred != 0);
j["localSocket"] = peer->paths[i].localSocket;
j["localPort"] = peer->paths[i].localPort;
if (bond && peer->isBonded) {
uint64_t now = OSUtils::now();
j["ifname"] = std::string(peer->paths[i].ifname);
j["latencyMean"] = peer->paths[i].latencyMean;
j["latencyVariance"] = peer->paths[i].latencyVariance;
j["packetLossRatio"] = peer->paths[i].packetLossRatio;
j["packetErrorRatio"] = peer->paths[i].packetErrorRatio;
j["assignedFlowCount"] = peer->paths[i].assignedFlowCount;
j["lastInAge"] = (now - lastReceive);
j["lastOutAge"] = (now - lastSend);
j["bonded"] = peer->paths[i].bonded;
j["eligible"] = peer->paths[i].eligible;
j["givenLinkSpeed"] = peer->paths[i].linkSpeed;
j["relativeQuality"] = peer->paths[i].relativeQuality;
}
pa.push_back(j);
}
pj["paths"] = pa;
}
static void _moonToJson(nlohmann::json &mj,const World &world)
{
char tmp[4096];
OSUtils::ztsnprintf(tmp,sizeof(tmp),"%.16llx",world.id());
mj["id"] = tmp;
mj["timestamp"] = world.timestamp();
mj["signature"] = Utils::hex(world.signature().data,ZT_C25519_SIGNATURE_LEN,tmp);
mj["updatesMustBeSignedBy"] = Utils::hex(world.updatesMustBeSignedBy().data,ZT_C25519_PUBLIC_KEY_LEN,tmp);
nlohmann::json ra = nlohmann::json::array();
for(std::vector<World::Root>::const_iterator r(world.roots().begin());r!=world.roots().end();++r) {
nlohmann::json rj;
rj["identity"] = r->identity.toString(false,tmp);
nlohmann::json eps = nlohmann::json::array();
for(std::vector<InetAddress>::const_iterator a(r->stableEndpoints.begin());a!=r->stableEndpoints.end();++a)
eps.push_back(a->toString(tmp));
rj["stableEndpoints"] = eps;
ra.push_back(rj);
}
mj["roots"] = ra;
mj["waiting"] = false;
}
class OneServiceImpl;
static int SnodeVirtualNetworkConfigFunction(ZT_Node *node,void *uptr,void *tptr,uint64_t nwid,void **nuptr,enum ZT_VirtualNetworkConfigOperation op,const ZT_VirtualNetworkConfig *nwconf);
static void SnodeEventCallback(ZT_Node *node,void *uptr,void *tptr,enum ZT_Event event,const void *metaData);
static void SnodeStatePutFunction(ZT_Node *node,void *uptr,void *tptr,enum ZT_StateObjectType type,const uint64_t id[2],const void *data,int len);
static int SnodeStateGetFunction(ZT_Node *node,void *uptr,void *tptr,enum ZT_StateObjectType type,const uint64_t id[2],void *data,unsigned int maxlen);
static int SnodeWirePacketSendFunction(ZT_Node *node,void *uptr,void *tptr,int64_t localSocket,const struct sockaddr_storage *addr,const void *data,unsigned int len,unsigned int ttl);
static void SnodeVirtualNetworkFrameFunction(ZT_Node *node,void *uptr,void *tptr,uint64_t nwid,void **nuptr,uint64_t sourceMac,uint64_t destMac,unsigned int etherType,unsigned int vlanId,const void *data,unsigned int len);
static int SnodePathCheckFunction(ZT_Node *node,void *uptr,void *tptr,uint64_t ztaddr,int64_t localSocket,const struct sockaddr_storage *remoteAddr);
static int SnodePathLookupFunction(ZT_Node *node,void *uptr,void *tptr,uint64_t ztaddr,int family,struct sockaddr_storage *result);
static void StapFrameHandler(void *uptr,void *tptr,uint64_t nwid,const MAC &from,const MAC &to,unsigned int etherType,unsigned int vlanId,const void *data,unsigned int len);
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
/**
* A TCP connection and related state and buffers
*/
struct TcpConnection
{
enum {
TCP_UNCATEGORIZED_INCOMING, // uncategorized incoming connection
TCP_HTTP_INCOMING,
TCP_HTTP_OUTGOING,
TCP_TUNNEL_OUTGOING // TUNNELED mode proxy outbound connection
} type;
OneServiceImpl *parent;
PhySocket *sock;
InetAddress remoteAddr;
uint64_t lastReceive;
// Used for inbound HTTP connections
http_parser parser;
unsigned long messageSize;
std::string currentHeaderField;
std::string currentHeaderValue;
std::string url;
std::string status;
std::map< std::string,std::string > headers;
std::string readq;
std::string writeq;
Mutex writeq_m;
};
struct PacketRecord
{
uint64_t now;
int64_t sock;
struct sockaddr_storage from;
unsigned int size;
uint8_t data[ZT_MAX_MTU];
};
class OneServiceImpl : public OneService
{
public:
// begin member variables --------------------------------------------------
const std::string _homePath;
std::string _authToken;
std::string _metricsToken;
std::string _controllerDbPath;
const std::string _networksPath;
const std::string _moonsPath;
EmbeddedNetworkController *_controller;
Phy<OneServiceImpl *> _phy;
Node *_node;
SoftwareUpdater *_updater;
bool _updateAutoApply;
httplib::Server _controlPlane;
httplib::Server _controlPlaneV6;
std::thread _serverThread;
std::thread _serverThreadV6;
bool _serverThreadRunning;
bool _serverThreadRunningV6;
BlockingQueue<PacketRecord *> _rxPacketQueue;
std::vector<PacketRecord *> _rxPacketVector;
std::vector<std::thread> _rxPacketThreads;
Mutex _rxPacketVector_m,_rxPacketThreads_m;
bool _multicoreEnabled;
bool _cpuPinningEnabled;
unsigned int _concurrency;
bool _allowTcpFallbackRelay;
bool _forceTcpRelay;
bool _allowSecondaryPort;
bool _enableWebServer;
unsigned int _primaryPort;
unsigned int _secondaryPort;
unsigned int _tertiaryPort;
volatile unsigned int _udpPortPickerCounter;
// Local configuration and memo-ized information from it
json _localConfig;
Hashtable< uint64_t,std::vector<InetAddress> > _v4Hints;
Hashtable< uint64_t,std::vector<InetAddress> > _v6Hints;
Hashtable< uint64_t,std::vector<InetAddress> > _v4Blacklists;
Hashtable< uint64_t,std::vector<InetAddress> > _v6Blacklists;
std::vector< InetAddress > _globalV4Blacklist;
std::vector< InetAddress > _globalV6Blacklist;
std::vector< InetAddress > _allowManagementFrom;
std::vector< std::string > _interfacePrefixBlacklist;
Mutex _localConfig_m;
std::vector<InetAddress> explicitBind;
/*
* To attempt to handle NAT/gateway craziness we use three local UDP ports:
*
* [0] is the normal/default port, usually 9993
* [1] is a port derived from our ZeroTier address
* [2] is a port computed from the normal/default for use with uPnP/NAT-PMP mappings
*
* [2] exists because on some gateways trying to do regular NAT-t interferes
* destructively with uPnP port mapping behavior in very weird buggy ways.
* It's only used if uPnP/NAT-PMP is enabled in this build.
*/
unsigned int _ports[3];
Binder _binder;
// Time we last received a packet from a global address
uint64_t _lastDirectReceiveFromGlobal;
#ifdef ZT_TCP_FALLBACK_RELAY
InetAddress _fallbackRelayAddress;
uint64_t _lastSendToGlobalV4;
#endif
// Last potential sleep/wake event
uint64_t _lastRestart;
// Deadline for the next background task service function
volatile int64_t _nextBackgroundTaskDeadline;
std::map<uint64_t,NetworkState> _nets;
Mutex _nets_m;
// Active TCP/IP connections
std::vector< TcpConnection * > _tcpConnections;
Mutex _tcpConnections_m;
TcpConnection *_tcpFallbackTunnel;
// Termination status information
ReasonForTermination _termReason;
std::string _fatalErrorMessage;
Mutex _termReason_m;
// uPnP/NAT-PMP port mapper if enabled
bool _portMappingEnabled; // local.conf settings
#ifdef ZT_USE_MINIUPNPC
PortMapper *_portMapper;
#endif
// HashiCorp Vault Settings
#if ZT_VAULT_SUPPORT
bool _vaultEnabled;
std::string _vaultURL;
std::string _vaultToken;
std::string _vaultPath; // defaults to cubbyhole/zerotier/identity.secret for per-access key storage
#endif
// Set to false to force service to stop
volatile bool _run;
Mutex _run_m;
RedisConfig *_rc;
std::string _ssoRedirectURL;
// end member variables ----------------------------------------------------
OneServiceImpl(const char *hp,unsigned int port) :
_homePath((hp) ? hp : ".")
,_controllerDbPath(_homePath + ZT_PATH_SEPARATOR_S "controller.d")
,_networksPath(_homePath + ZT_PATH_SEPARATOR_S "networks.d")
,_moonsPath(_homePath + ZT_PATH_SEPARATOR_S "moons.d")
,_controller((EmbeddedNetworkController *)0)
,_phy(this,false,true)
,_node((Node *)0)
,_updater((SoftwareUpdater *)0)
,_updateAutoApply(false)
,_controlPlane()
,_controlPlaneV6()
,_serverThread()
,_serverThreadV6()
,_serverThreadRunning(false)
,_serverThreadRunningV6(false)
,_forceTcpRelay(false)
,_primaryPort(port)
,_udpPortPickerCounter(0)
,_lastDirectReceiveFromGlobal(0)
#ifdef ZT_TCP_FALLBACK_RELAY
, _fallbackRelayAddress(ZT_TCP_FALLBACK_RELAY)
,_lastSendToGlobalV4(0)
#endif
,_lastRestart(0)
,_nextBackgroundTaskDeadline(0)
,_tcpFallbackTunnel((TcpConnection *)0)
,_termReason(ONE_STILL_RUNNING)
,_portMappingEnabled(true)
#ifdef ZT_USE_MINIUPNPC
,_portMapper((PortMapper *)0)
#endif
#ifdef ZT_VAULT_SUPPORT
,_vaultEnabled(false)
,_vaultURL()
,_vaultToken()
,_vaultPath("cubbyhole/zerotier")
#endif
,_run(true)
,_rc(NULL)
,_ssoRedirectURL()
{
_ports[0] = 0;
_ports[1] = 0;
_ports[2] = 0;
prometheus::simpleapi::saver.set_registry(prometheus::simpleapi::registry_ptr);
prometheus::simpleapi::saver.set_delay(std::chrono::seconds(5));
prometheus::simpleapi::saver.set_out_file(_homePath + ZT_PATH_SEPARATOR + "metrics.prom");
#if ZT_VAULT_SUPPORT
curl_global_init(CURL_GLOBAL_DEFAULT);
#endif
}
virtual ~OneServiceImpl()
{
#ifdef __WINDOWS__
WinFWHelper::removeICMPRules();
#endif
_rxPacketQueue.stop();
_rxPacketThreads_m.lock();
for(auto t=_rxPacketThreads.begin();t!=_rxPacketThreads.end();++t) {
t->join();
}
_rxPacketThreads_m.unlock();
_binder.closeAll(_phy);
#if ZT_VAULT_SUPPORT
curl_global_cleanup();
#endif
_controlPlane.stop();
if (_serverThreadRunning) {
_serverThread.join();
}
_controlPlaneV6.stop();
if (_serverThreadRunningV6) {
_serverThreadV6.join();
}
_rxPacketVector_m.lock();
while (!_rxPacketVector.empty()) {
delete _rxPacketVector.back();
_rxPacketVector.pop_back();
}
_rxPacketVector_m.unlock();
#ifdef ZT_USE_MINIUPNPC
delete _portMapper;
#endif
delete _controller;
delete _rc;
}
void setUpMultithreading()
{
#if defined(__APPLE__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__WINDOWS__)
return;
#endif
_node->initMultithreading(_concurrency, _cpuPinningEnabled);
bool pinning = _cpuPinningEnabled;
}