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/*
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* Copyright ( c ) 2013 - 2020 ZeroTier , Inc .
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*
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* Use of this software is governed by the Business Source License included
* in the LICENSE . TXT file in the project ' s root directory .
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*
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* Change Date : 2025 - 01 - 01
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*
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* 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 .
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*/
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/****/
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# include <stdio.h>
# include <stdlib.h>
# include <string.h>
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# include <stdint.h>
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# include <string>
# include <map>
# include <vector>
# include <algorithm>
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# include <list>
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# include <thread>
# include <mutex>
# include <condition_variable>
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# 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"
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# include "../node/MAC.hpp"
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# include "../node/Identity.hpp"
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# include "../node/World.hpp"
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# include "../node/Salsa20.hpp"
# include "../node/Poly1305.hpp"
# include "../node/SHA512.hpp"
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# include "../node/Bond.hpp"
# include "../node/Peer.hpp"
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# include "../osdep/Phy.hpp"
# include "../osdep/OSUtils.hpp"
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# include "../osdep/Http.hpp"
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# include "../osdep/PortMapper.hpp"
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# include "../osdep/Binder.hpp"
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# include "../osdep/ManagedRoute.hpp"
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# include "../osdep/BlockingQueue.hpp"
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# include "OneService.hpp"
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# include "SoftwareUpdater.hpp"
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# if ZT_SSO_ENABLED
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# include <zeroidc.h>
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# endif
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# ifdef __WINDOWS__
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# include <winsock2.h>
# include <windows.h>
# include <shlobj.h>
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# include <netioapi.h>
# include <iphlpapi.h>
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//#include <unistd.h>
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# define stat _stat
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# else
# include <sys/types.h>
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# include <sys/socket.h>
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# include <sys/stat.h>
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# include <sys/wait.h>
# include <unistd.h>
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# include <ifaddrs.h>
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# endif
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# ifdef __APPLE__
# include "../osdep/MacDNSHelper.hpp"
# elif defined(__WINDOWS__)
# include "../osdep/WinDNSHelper.hpp"
# endif
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# ifdef ZT_USE_SYSTEM_HTTP_PARSER
# include <http_parser.h>
# else
# include "../ext/http-parser/http_parser.h"
# endif
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# if ZT_VAULT_SUPPORT
extern " C " {
# include <curl/curl.h>
}
# endif
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# include <nlohmann/json.hpp>
# include <inja/inja.hpp>
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using json = nlohmann : : json ;
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# include "../controller/EmbeddedNetworkController.hpp"
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# include "../controller/PostgreSQL.hpp"
# include "../controller/Redis.hpp"
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# include "../osdep/EthernetTap.hpp"
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# ifdef __WINDOWS__
# include "../osdep/WindowsEthernetTap.hpp"
# endif
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# ifndef ZT_SOFTWARE_UPDATE_DEFAULT
# define ZT_SOFTWARE_UPDATE_DEFAULT "disable"
# endif
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// Sanity limits for HTTP
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# define ZT_MAX_HTTP_MESSAGE_SIZE (1024 * 1024 * 64)
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# define ZT_MAX_HTTP_CONNECTIONS 65536
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// 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.
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# define ZT_IF_METRIC 5000
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// How often to check for new multicast subscriptions on a tap device
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# define ZT_TAP_CHECK_MULTICAST_INTERVAL 5000
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// TCP fallback relay (run by ZeroTier, Inc. -- this will eventually go away)
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# ifndef ZT_SDK
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# define ZT_TCP_FALLBACK_RELAY "204.80.128.1 / 443"
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# endif
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// Frequency at which we re-resolve the TCP fallback relay
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# define ZT_TCP_FALLBACK_RERESOLVE_DELAY 86400000
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// Attempt to engage TCP fallback after this many ms of no reply to packets sent to global-scope IPs
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# define ZT_TCP_FALLBACK_AFTER 60000
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// How often to check for local interface addresses
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# define ZT_LOCAL_INTERFACE_CHECK_INTERVAL 60000
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// Maximum write buffer size for outgoing TCP connections (sanity limit)
# define ZT_TCP_MAX_WRITEQ_SIZE 33554432
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// TCP activity timeout
# define ZT_TCP_ACTIVITY_TIMEOUT 60000
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# 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
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namespace ZeroTier {
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const char * ssoResponseTemplate = " <html> \
< head > \
< style type = \ " text/css \" > \
html , body { \
background : # eeeeee ; \
margin : 0 ; \
padding : 0 ; \
font - family : \ " Helvetica \" ; \
font - weight : bold ; \
font - size : 12 pt ; \
height : 100 % ; \
width : 100 % ; \
} \
div . icon { \
background : # ffb354 ; \
color : # 000000 ; \
font - size : 120 pt ; \
border - radius : 2.5 rem ; \
display : inline - block ; \
width : 1.3 em ; \
height : 1.3 em ; \
padding : 0 ; \
margin : 15 ; \
line - height : 1.4 em ; \
vertical - align : middle ; \
text - align : center ; \
} \
< / style > \
< / head > \
< body > \
< br > < br > < br > < br > < br > < br > \
< center > \
< div class = \ " icon \ " >⏁</div> \
< div class = \ " text \ " >%s</div> \
< / center > \
< / body > \
< / html > " ;
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// Configured networks
class NetworkState
{
public :
NetworkState ( )
: _webPort ( 9993 )
, _tap ( ( EthernetTap * ) 0 )
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# if ZT_SSO_ENABLED
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, _idc ( nullptr )
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# endif
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{
// 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 ( ) ;
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# if ZT_SSO_ENABLED
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if ( _idc ) {
zeroidc : : zeroidc_stop ( _idc ) ;
zeroidc : : zeroidc_delete ( _idc ) ;
_idc = nullptr ;
}
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# endif
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}
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 ) {
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char nwbuf [ 17 ] = { } ;
const char * nwid = Utils : : hex ( nwc - > nwid , nwbuf ) ;
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// fprintf(stderr, "NetworkState::setConfig(%s)\n", nwid);
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memcpy ( & _config , nwc , sizeof ( ZT_VirtualNetworkConfig ) ) ;
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// fprintf(stderr, "ssoEnabled: %s, ssoVersion: %d\n",
// _config.ssoEnabled ? "true" : "false", _config.ssoVersion);
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if ( _config . ssoEnabled & & _config . ssoVersion = = 1 ) {
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// fprintf(stderr, "ssoEnabled for %s\n", nwid);
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# if ZT_SSO_ENABLED
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if ( _idc = = nullptr )
{
assert ( _config . issuerURL ! = nullptr ) ;
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assert ( _config . ssoClientID ! = nullptr ) ;
assert ( _config . centralAuthURL ! = nullptr ) ;
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// fprintf(stderr, "Issuer URL: %s\n", _config.issuerURL);
// fprintf(stderr, "Client ID: %s\n", _config.ssoClientID);
// fprintf(stderr, "Central Auth URL: %s\n", _config.centralAuthURL);
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_idc = zeroidc : : zeroidc_new (
_config . issuerURL ,
_config . ssoClientID ,
_config . centralAuthURL ,
_webPort
) ;
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if ( _idc = = nullptr ) {
fprintf ( stderr , " idc is null \n " ) ;
return ;
}
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// fprintf(stderr, "idc created (%s, %s, %s)\n", _config.issuerURL, _config.ssoClientID, _config.centralAuthURL);
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}
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zeroidc : : zeroidc_set_nonce_and_csrf (
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_idc ,
_config . ssoState ,
_config . ssoNonce
) ;
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char * url = zeroidc : : zeroidc_get_auth_url ( _idc ) ;
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memcpy ( _config . authenticationURL , url , strlen ( url ) ) ;
_config . authenticationURL [ strlen ( url ) ] = 0 ;
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zeroidc : : free_cstr ( url ) ;
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if ( zeroidc : : zeroidc_is_running ( _idc ) & & nwc - > status = = ZT_NETWORK_STATUS_AUTHENTICATION_REQUIRED ) {
// TODO: kick the refresh thread
zeroidc : : zeroidc_kick_refresh_thread ( _idc ) ;
}
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# endif
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}
}
std : : vector < InetAddress > & managedIps ( ) {
return _managedIps ;
}
void setManagedIps ( const std : : vector < InetAddress > & managedIps ) {
_managedIps = managedIps ;
}
std : : map < InetAddress , SharedPtr < ManagedRoute > > & managedRoutes ( ) {
return _managedRoutes ;
}
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const char * getAuthURL ( ) {
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# if ZT_SSO_ENABLED
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if ( _idc ! = nullptr ) {
return zeroidc : : zeroidc_get_auth_url ( _idc ) ;
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}
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fprintf ( stderr , " _idc is null \n " ) ;
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# endif
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return " " ;
}
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char * doTokenExchange ( const char * code ) {
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char * ret = nullptr ;
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# if ZT_SSO_ENABLED
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if ( _idc = = nullptr ) {
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fprintf ( stderr , " ainfo or idc null \n " ) ;
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return " " ;
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}
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ret = zeroidc : : zeroidc_token_exchange ( _idc , code ) ;
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zeroidc : : zeroidc_set_nonce_and_csrf (
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_idc ,
_config . ssoState ,
_config . ssoNonce
) ;
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char * url = zeroidc : : zeroidc_get_auth_url ( _idc ) ;
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memcpy ( _config . authenticationURL , url , strlen ( url ) ) ;
_config . authenticationURL [ strlen ( url ) ] = 0 ;
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zeroidc : : free_cstr ( url ) ;
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# endif
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return ret ;
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}
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uint64_t getExpiryTime ( ) {
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# if ZT_SSO_ENABLED
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if ( _idc = = nullptr ) {
fprintf ( stderr , " idc is null \n " ) ;
return 0 ;
}
return zeroidc : : zeroidc_get_exp_time ( _idc ) ;
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# else
return 0 ;
# endif
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}
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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 ;
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# if ZT_SSO_ENABLED
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zeroidc : : ZeroIDC * _idc ;
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# endif
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} ;
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namespace {
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static const InetAddress NULL_INET_ADDR ;
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// 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 ) } ;
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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 ) ;
}
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static void _networkToJson ( nlohmann : : json & nj , NetworkState & ns )
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{
char tmp [ 256 ] ;
const char * nstatus = " " , * ntype = " " ;
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switch ( ns . config ( ) . status ) {
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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 ;
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case ZT_NETWORK_STATUS_AUTHENTICATION_REQUIRED : nstatus = " AUTHENTICATION_REQUIRED " ; break ;
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}
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switch ( ns . config ( ) . type ) {
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case ZT_NETWORK_TYPE_PRIVATE : ntype = " PRIVATE " ; break ;
case ZT_NETWORK_TYPE_PUBLIC : ntype = " PUBLIC " ; break ;
}
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OSUtils : : ztsnprintf ( tmp , sizeof ( tmp ) , " %.16llx " , ns . config ( ) . nwid ) ;
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nj [ " id " ] = tmp ;
nj [ " nwid " ] = tmp ;
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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 ) ) ;
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nj [ " mac " ] = tmp ;
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nj [ " name " ] = ns . config ( ) . name ;
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nj [ " status " ] = nstatus ;
nj [ " type " ] = ntype ;
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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 ( ) ;
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nj [ " allowManaged " ] = localSettings . allowManaged ;
nj [ " allowGlobal " ] = localSettings . allowGlobal ;
nj [ " allowDefault " ] = localSettings . allowDefault ;
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nj [ " allowDNS " ] = localSettings . allowDNS ;
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nlohmann : : json aa = nlohmann : : json : : array ( ) ;
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for ( unsigned int i = 0 ; i < ns . config ( ) . assignedAddressCount ; + + i ) {
aa . push_back ( reinterpret_cast < const InetAddress * > ( & ( ns . config ( ) . assignedAddresses [ i ] ) ) - > toString ( tmp ) ) ;
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}
nj [ " assignedAddresses " ] = aa ;
nlohmann : : json ra = nlohmann : : json : : array ( ) ;
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for ( unsigned int i = 0 ; i < ns . config ( ) . routeCount ; + + i ) {
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nlohmann : : json rj ;
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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 ) ;
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else rj [ " via " ] = nlohmann : : json ( ) ;
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rj [ " flags " ] = ( int ) ns . config ( ) . routes [ i ] . flags ;
rj [ " metric " ] = ( int ) ns . config ( ) . routes [ i ] . metric ;
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ra . push_back ( rj ) ;
}
nj [ " routes " ] = ra ;
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nlohmann : : json mca = nlohmann : : json : : array ( ) ;
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for ( unsigned int i = 0 ; i < ns . config ( ) . multicastSubscriptionCount ; + + i ) {
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nlohmann : : json m ;
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m [ " mac " ] = MAC ( ns . config ( ) . multicastSubscriptions [ i ] . mac ) . toString ( tmp ) ;
m [ " adi " ] = ns . config ( ) . multicastSubscriptions [ i ] . adi ;
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mca . push_back ( m ) ;
}
nj [ " multicastSubscriptions " ] = mca ;
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nlohmann : : json m ;
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m [ " domain " ] = ns . config ( ) . dns . domain ;
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m [ " servers " ] = nlohmann : : json : : array ( ) ;
for ( int j = 0 ; j < ZT_MAX_DNS_SERVERS ; + + j ) {
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InetAddress a ( ns . config ( ) . dns . server_addr [ j ] ) ;
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if ( a . isV4 ( ) | | a . isV6 ( ) ) {
char buf [ 256 ] ;
m [ " servers " ] . push_back ( a . toIpString ( buf ) ) ;
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}
}
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nj [ " dns " ] = m ;
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if ( ns . config ( ) . ssoEnabled ) {
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const char * authURL = ns . getAuthURL ( ) ;
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//fprintf(stderr, "Auth URL: %s\n", authURL);
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nj [ " authenticationURL " ] = authURL ;
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nj [ " authenticationExpiryTime " ] = ( ns . getExpiryTime ( ) * 1000 ) ;
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nj [ " ssoEnabled " ] = ns . config ( ) . ssoEnabled ;
}
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}
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static void _peerToJson ( nlohmann : : json & pj , const ZT_Peer * peer )
{
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 ;
}
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OSUtils : : ztsnprintf ( tmp , sizeof ( tmp ) , " %.10llx " , peer - > address ) ;
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pj [ " address " ] = tmp ;
pj [ " versionMajor " ] = peer - > versionMajor ;
pj [ " versionMinor " ] = peer - > versionMinor ;
pj [ " versionRev " ] = peer - > versionRev ;
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OSUtils : : ztsnprintf ( tmp , sizeof ( tmp ) , " %d.%d.%d " , peer - > versionMajor , peer - > versionMinor , peer - > versionRev ) ;
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pj [ " version " ] = tmp ;
pj [ " latency " ] = peer - > latency ;
pj [ " role " ] = prole ;
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pj [ " isBonded " ] = peer - > isBonded ;
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if ( peer - > isBonded ) {
pj [ " bondingPolicy " ] = peer - > bondingPolicy ;
pj [ " numAliveLinks " ] = peer - > numAliveLinks ;
pj [ " numTotalLinks " ] = peer - > numTotalLinks ;
}
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nlohmann : : json pa = nlohmann : : json : : array ( ) ;
for ( unsigned int i = 0 ; i < peer - > pathCount ; + + i ) {
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int64_t lastSend = peer - > paths [ i ] . lastSend ;
int64_t lastReceive = peer - > paths [ i ] . lastReceive ;
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nlohmann : : json j ;
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j [ " address " ] = reinterpret_cast < const InetAddress * > ( & ( peer - > paths [ i ] . address ) ) - > toString ( tmp ) ;
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j [ " lastSend " ] = ( lastSend < 0 ) ? 0 : lastSend ;
j [ " lastReceive " ] = ( lastReceive < 0 ) ? 0 : lastReceive ;
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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 ) ;
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j [ " localSocket " ] = peer - > paths [ i ] . localSocket ;
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pa . push_back ( j ) ;
}
pj [ " paths " ] = pa ;
}
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static void _bondToJson ( nlohmann : : json & pj , SharedPtr < Bond > & bond )
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{
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uint64_t now = OSUtils : : now ( ) ;
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int bondingPolicy = bond - > policy ( ) ;
pj [ " bondingPolicy " ] = Bond : : getPolicyStrByCode ( bondingPolicy ) ;
if ( bondingPolicy = = ZT_BOND_POLICY_NONE ) {
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return ;
}
pj [ " numAliveLinks " ] = bond - > getNumAliveLinks ( ) ;
pj [ " numTotalLinks " ] = bond - > getNumTotalLinks ( ) ;
pj [ " failoverInterval " ] = bond - > getFailoverInterval ( ) ;
pj [ " downDelay " ] = bond - > getDownDelay ( ) ;
pj [ " upDelay " ] = bond - > getUpDelay ( ) ;
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if ( bondingPolicy = = ZT_BOND_POLICY_BALANCE_RR ) {
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pj [ " packetsPerLink " ] = bond - > getPacketsPerLink ( ) ;
}
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if ( bondingPolicy = = ZT_BOND_POLICY_ACTIVE_BACKUP ) {
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pj [ " linkSelectMethod " ] = bond - > getLinkSelectMethod ( ) ;
}
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nlohmann : : json pa = nlohmann : : json : : array ( ) ;
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std : : vector < SharedPtr < Path > > paths = bond - > paths ( now ) ;
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for ( unsigned int i = 0 ; i < paths . size ( ) ; + + i ) {
char pathStr [ 128 ] ;
paths [ i ] - > address ( ) . toString ( pathStr ) ;
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nlohmann : : json j ;
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j [ " ifname " ] = bond - > getLink ( paths [ i ] ) - > ifname ( ) ;
j [ " path " ] = pathStr ;
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/*
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j [ " alive " ] = paths [ i ] - > alive ( now , true ) ;
j [ " bonded " ] = paths [ i ] - > bonded ( ) ;
j [ " latencyMean " ] = paths [ i ] - > latencyMean ( ) ;
j [ " latencyVariance " ] = paths [ i ] - > latencyVariance ( ) ;
j [ " packetLossRatio " ] = paths [ i ] - > packetLossRatio ( ) ;
j [ " packetErrorRatio " ] = paths [ i ] - > packetErrorRatio ( ) ;
j [ " givenLinkSpeed " ] = 1000 ;
j [ " allocation " ] = paths [ i ] - > allocation ( ) ;
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*/
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pa . push_back ( j ) ;
}
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pj [ " links " ] = pa ;
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}
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static void _moonToJson ( nlohmann : : json & mj , const World & world )
{
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char tmp [ 4096 ] ;
OSUtils : : ztsnprintf ( tmp , sizeof ( tmp ) , " %.16llx " , world . id ( ) ) ;
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mj [ " id " ] = tmp ;
mj [ " timestamp " ] = world . timestamp ( ) ;
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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 ) ;
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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 ;
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rj [ " identity " ] = r - > identity . toString ( false , tmp ) ;
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nlohmann : : json eps = nlohmann : : json : : array ( ) ;
for ( std : : vector < InetAddress > : : const_iterator a ( r - > stableEndpoints . begin ( ) ) ; a ! = r - > stableEndpoints . end ( ) ; + + a )
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eps . push_back ( a - > toString ( tmp ) ) ;
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rj [ " stableEndpoints " ] = eps ;
ra . push_back ( rj ) ;
}
mj [ " roots " ] = ra ;
mj [ " waiting " ] = false ;
}
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class OneServiceImpl ;
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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 ) ;
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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 ) ;
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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 ) ;
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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 ) ;
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static int SnodePathCheckFunction ( ZT_Node * node , void * uptr , void * tptr , uint64_t ztaddr , int64_t localSocket , const struct sockaddr_storage * remoteAddr ) ;
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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 ) ;
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static int ShttpOnMessageBegin ( http_parser * parser ) ;
static int ShttpOnUrl ( http_parser * parser , const char * ptr , size_t length ) ;
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# if (HTTP_PARSER_VERSION_MAJOR >= 2) && (HTTP_PARSER_VERSION_MINOR >= 2)
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static int ShttpOnStatus ( http_parser * parser , const char * ptr , size_t length ) ;
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# else
static int ShttpOnStatus ( http_parser * parser ) ;
# endif
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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 ) ;
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# if (HTTP_PARSER_VERSION_MAJOR >= 2) && (HTTP_PARSER_VERSION_MINOR >= 1)
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static const struct http_parser_settings HTTP_PARSER_SETTINGS = {
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ShttpOnMessageBegin ,
ShttpOnUrl ,
ShttpOnStatus ,
ShttpOnHeaderField ,
ShttpOnValue ,
ShttpOnHeadersComplete ,
ShttpOnBody ,
ShttpOnMessageComplete
} ;
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# else
static const struct http_parser_settings HTTP_PARSER_SETTINGS = {
ShttpOnMessageBegin ,
ShttpOnUrl ,
ShttpOnHeaderField ,
ShttpOnValue ,
ShttpOnHeadersComplete ,
ShttpOnBody ,
ShttpOnMessageComplete
} ;
# endif
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/**
* A TCP connection and related state and buffers
*/
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struct TcpConnection
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{
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enum {
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TCP_UNCATEGORIZED_INCOMING , // uncategorized incoming connection
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TCP_HTTP_INCOMING ,
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TCP_HTTP_OUTGOING ,
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TCP_TUNNEL_OUTGOING // TUNNELED mode proxy outbound connection
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} type ;
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OneServiceImpl * parent ;
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PhySocket * sock ;
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InetAddress remoteAddr ;
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uint64_t lastReceive ;
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// Used for inbound HTTP connections
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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 ;
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std : : string readq ;
std : : string writeq ;
Mutex writeq_m ;
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} ;
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struct OneServiceIncomingPacket
{
uint64_t now ;
int64_t sock ;
struct sockaddr_storage from ;
unsigned int size ;
uint8_t data [ ZT_MAX_MTU ] ;
} ;
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class OneServiceImpl : public OneService
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{
public :
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// begin member variables --------------------------------------------------
const std : : string _homePath ;
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std : : string _authToken ;
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std : : string _controllerDbPath ;
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const std : : string _networksPath ;
const std : : string _moonsPath ;
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EmbeddedNetworkController * _controller ;
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Phy < OneServiceImpl * > _phy ;
Node * _node ;
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SoftwareUpdater * _updater ;
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PhySocket * _localControlSocket4 ;
PhySocket * _localControlSocket6 ;
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bool _updateAutoApply ;
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bool _allowTcpFallbackRelay ;
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bool _allowSecondaryPort ;
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unsigned int _primaryPort ;
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unsigned int _secondaryPort ;
unsigned int _tertiaryPort ;
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volatile unsigned int _udpPortPickerCounter ;
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// Local configuration and memo-ized information from it
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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 ;
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std : : vector < InetAddress > _allowManagementFrom ;
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std : : vector < std : : string > _interfacePrefixBlacklist ;
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Mutex _localConfig_m ;
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std : : vector < InetAddress > explicitBind ;
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/*
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* To attempt to handle NAT / gateway craziness we use three local UDP ports :
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*
* [ 0 ] is the normal / default port , usually 9993
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* [ 1 ] is a port derived from our ZeroTier address
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* [ 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 .
*/
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unsigned int _ports [ 3 ] ;
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Binder _binder ;
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// Time we last received a packet from a global address
uint64_t _lastDirectReceiveFromGlobal ;
# ifdef ZT_TCP_FALLBACK_RELAY
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InetAddress _fallbackRelayAddress ;
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uint64_t _lastSendToGlobalV4 ;
# endif
// Last potential sleep/wake event
uint64_t _lastRestart ;
// Deadline for the next background task service function
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volatile int64_t _nextBackgroundTaskDeadline ;
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std : : map < uint64_t , NetworkState > _nets ;
Mutex _nets_m ;
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// Active TCP/IP connections
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std : : vector < TcpConnection * > _tcpConnections ;
Mutex _tcpConnections_m ;
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TcpConnection * _tcpFallbackTunnel ;
// Termination status information
ReasonForTermination _termReason ;
std : : string _fatalErrorMessage ;
Mutex _termReason_m ;
// uPnP/NAT-PMP port mapper if enabled
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bool _portMappingEnabled ; // local.conf settings
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# ifdef ZT_USE_MINIUPNPC
PortMapper * _portMapper ;
# endif
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// 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
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// Set to false to force service to stop
volatile bool _run ;
Mutex _run_m ;
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RedisConfig * _rc ;
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std : : string _ssoRedirectURL ;
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// end member variables ----------------------------------------------------
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OneServiceImpl ( const char * hp , unsigned int port ) :
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_homePath ( ( hp ) ? hp : " . " )
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, _controllerDbPath ( _homePath + ZT_PATH_SEPARATOR_S " controller.d " )
, _networksPath ( _homePath + ZT_PATH_SEPARATOR_S " networks.d " )
, _moonsPath ( _homePath + ZT_PATH_SEPARATOR_S " moons.d " )
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, _controller ( ( EmbeddedNetworkController * ) 0 )
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, _phy ( this , false , true )
, _node ( ( Node * ) 0 )
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, _updater ( ( SoftwareUpdater * ) 0 )
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, _localControlSocket4 ( ( PhySocket * ) 0 )
, _localControlSocket6 ( ( PhySocket * ) 0 )
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, _updateAutoApply ( false )
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, _primaryPort ( port )
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, _udpPortPickerCounter ( 0 )
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, _lastDirectReceiveFromGlobal ( 0 )
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# ifdef ZT_TCP_FALLBACK_RELAY
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, _fallbackRelayAddress ( ZT_TCP_FALLBACK_RELAY )
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, _lastSendToGlobalV4 ( 0 )
# endif
2015-10-22 23:02:01 +00:00
, _lastRestart ( 0 )
, _nextBackgroundTaskDeadline ( 0 )
, _tcpFallbackTunnel ( ( TcpConnection * ) 0 )
, _termReason ( ONE_STILL_RUNNING )
2017-01-19 23:57:50 +00:00
, _portMappingEnabled ( true )
2015-07-28 21:32:02 +00:00
# ifdef ZT_USE_MINIUPNPC
2015-11-30 21:10:22 +00:00
, _portMapper ( ( PortMapper * ) 0 )
2018-08-09 21:32:26 +00:00
# endif
# ifdef ZT_VAULT_SUPPORT
, _vaultEnabled ( false )
, _vaultURL ( )
, _vaultToken ( )
, _vaultPath ( " cubbyhole/zerotier " )
2015-10-22 23:02:01 +00:00
# endif
, _run ( true )
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, _rc ( NULL )
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, _ssoRedirectURL ( )
2015-04-10 01:14:27 +00:00
{
2016-04-05 22:44:08 +00:00
_ports [ 0 ] = 0 ;
_ports [ 1 ] = 0 ;
_ports [ 2 ] = 0 ;
2018-11-12 06:35:15 +00:00
2018-08-09 21:32:26 +00:00
# if ZT_VAULT_SUPPORT
curl_global_init ( CURL_GLOBAL_DEFAULT ) ;
# endif
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}
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virtual ~ OneServiceImpl ( )
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{
2017-06-06 23:11:19 +00:00
_binder . closeAll ( _phy ) ;
2017-07-06 19:33:00 +00:00
_phy . close ( _localControlSocket4 ) ;
_phy . close ( _localControlSocket6 ) ;
2018-11-13 20:07:58 +00:00
2018-08-09 21:32:26 +00:00
# if ZT_VAULT_SUPPORT
curl_global_cleanup ( ) ;
# endif
2015-09-23 21:38:16 +00:00
# ifdef ZT_USE_MINIUPNPC
2015-11-30 21:10:22 +00:00
delete _portMapper ;
2015-10-06 22:56:18 +00:00
# endif
delete _controller ;
2020-05-11 22:03:56 +00:00
delete _rc ;
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}
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virtual ReasonForTermination run ( )
{
try {
2015-04-16 02:14:12 +00:00
{
2017-03-07 21:53:11 +00:00
const std : : string authTokenPath ( _homePath + ZT_PATH_SEPARATOR_S " authtoken.secret " ) ;
if ( ! OSUtils : : readFile ( authTokenPath . c_str ( ) , _authToken ) ) {
2015-04-16 02:14:12 +00:00
unsigned char foo [ 24 ] ;
Utils : : getSecureRandom ( foo , sizeof ( foo ) ) ;
2017-03-07 21:53:11 +00:00
_authToken = " " ;
2015-04-16 02:14:12 +00:00
for ( unsigned int i = 0 ; i < sizeof ( foo ) ; + + i )
2017-03-07 21:53:11 +00:00
_authToken . push_back ( " abcdefghijklmnopqrstuvwxyz0123456789 " [ ( unsigned long ) foo [ i ] % 36 ] ) ;
if ( ! OSUtils : : writeFile ( authTokenPath . c_str ( ) , _authToken ) ) {
2015-04-16 02:14:12 +00:00
Mutex : : Lock _l ( _termReason_m ) ;
_termReason = ONE_UNRECOVERABLE_ERROR ;
_fatalErrorMessage = " authtoken.secret could not be written " ;
return _termReason ;
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} else {
OSUtils : : lockDownFile ( authTokenPath . c_str ( ) , false ) ;
}
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}
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_authToken = _trimString ( _authToken ) ;
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}
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{
struct ZT_Node_Callbacks cb ;
cb . version = 0 ;
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cb . stateGetFunction = SnodeStateGetFunction ;
cb . statePutFunction = SnodeStatePutFunction ;
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cb . wirePacketSendFunction = SnodeWirePacketSendFunction ;
cb . virtualNetworkFrameFunction = SnodeVirtualNetworkFrameFunction ;
cb . virtualNetworkConfigFunction = SnodeVirtualNetworkConfigFunction ;
cb . eventCallback = SnodeEventCallback ;
cb . pathCheckFunction = SnodePathCheckFunction ;
cb . pathLookupFunction = SnodePathLookupFunction ;
2017-03-28 00:03:17 +00:00
_node = new Node ( this , ( void * ) 0 , & cb , OSUtils : : now ( ) ) ;
2015-11-30 21:10:22 +00:00
}
2016-04-05 22:44:08 +00:00
2018-09-11 23:55:46 +00:00
// local.conf
readLocalSettings ( ) ;
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applyLocalConfig ( ) ;
2015-10-22 23:02:01 +00:00
2021-03-09 01:25:41 +00:00
// Save original port number to show it if bind error
const int _configuredPort = _primaryPort ;
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// Make sure we can use the primary port, and hunt for one if configured to do so
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const int portTrials = ( _primaryPort = = 0 ) ? 256 : 1 ; // if port is 0, pick random
for ( int k = 0 ; k < portTrials ; + + k ) {
if ( _primaryPort = = 0 ) {
unsigned int randp = 0 ;
Utils : : getSecureRandom ( & randp , sizeof ( randp ) ) ;
_primaryPort = 20000 + ( randp % 45500 ) ;
}
if ( _trialBind ( _primaryPort ) ) {
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_ports [ 0 ] = _primaryPort ;
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} else {
_primaryPort = 0 ;
}
}
if ( _ports [ 0 ] = = 0 ) {
Mutex : : Lock _l ( _termReason_m ) ;
_termReason = ONE_UNRECOVERABLE_ERROR ;
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_fatalErrorMessage = std : : string ( " cannot bind to local control interface port " ) + std : : to_string ( _configuredPort ) ;
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return _termReason ;
}
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// Bind TCP control socket to 127.0.0.1 and ::1 as well for loopback TCP control socket queries
2017-07-06 19:33:00 +00:00
{
struct sockaddr_in lo4 ;
memset ( & lo4 , 0 , sizeof ( lo4 ) ) ;
lo4 . sin_family = AF_INET ;
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lo4 . sin_addr . s_addr = Utils : : hton ( ( uint32_t ) 0x7f000001 ) ;
2017-07-06 19:33:00 +00:00
lo4 . sin_port = Utils : : hton ( ( uint16_t ) _ports [ 0 ] ) ;
_localControlSocket4 = _phy . tcpListen ( ( const struct sockaddr * ) & lo4 ) ;
struct sockaddr_in6 lo6 ;
memset ( & lo6 , 0 , sizeof ( lo6 ) ) ;
lo6 . sin6_family = AF_INET6 ;
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lo6 . sin6_addr . s6_addr [ 15 ] = 1 ;
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lo6 . sin6_port = lo4 . sin_port ;
_localControlSocket6 = _phy . tcpListen ( ( const struct sockaddr * ) & lo6 ) ;
}
2017-06-02 03:32:43 +00:00
// Save primary port to a file so CLIs and GUIs can learn it easily
2016-12-13 00:25:41 +00:00
char portstr [ 64 ] ;
2017-07-06 23:11:11 +00:00
OSUtils : : ztsnprintf ( portstr , sizeof ( portstr ) , " %u " , _ports [ 0 ] ) ;
2017-01-27 21:27:52 +00:00
OSUtils : : writeFile ( ( _homePath + ZT_PATH_SEPARATOR_S " zerotier-one.port " ) . c_str ( ) , std : : string ( portstr ) ) ;
2016-12-13 00:25:41 +00:00
2021-05-27 22:41:11 +00:00
// Attempt to bind to a secondary port.
2016-12-13 00:25:41 +00:00
// This exists because there are buggy NATs out there that fail if more
// than one device behind the same NAT tries to use the same internal
2017-06-06 23:11:19 +00:00
// private address port number. Buggy NATs are a running theme.
2021-05-27 22:41:11 +00:00
//
// This used to pick the secondary port based on the node ID until we
// discovered another problem: buggy routers and malicious traffic
// "detection". A lot of routers have such things built in these days
// and mis-detect ZeroTier traffic as malicious and block it resulting
// in a node that appears to be in a coma. Secondary ports are now
// randomized on startup.
2019-07-09 17:31:03 +00:00
if ( _allowSecondaryPort ) {
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if ( _secondaryPort ) {
_ports [ 1 ] = _secondaryPort ;
} else {
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_ports [ 1 ] = _getRandomPort ( ) ;
2016-12-13 00:25:41 +00:00
}
}
# ifdef ZT_USE_MINIUPNPC
2017-01-19 23:57:50 +00:00
if ( _portMappingEnabled ) {
// If we're running uPnP/NAT-PMP, bind a *third* port for that. We can't
// use the other two ports for that because some NATs do really funky
// stuff with ports that are explicitly mapped that breaks things.
2022-04-13 20:53:42 +00:00
if ( _tertiaryPort ) {
_ports [ 2 ] = _tertiaryPort ;
} else {
_ports [ 2 ] = _getRandomPort ( ) ;
}
if ( _ports [ 2 ] ) {
char uniqueName [ 64 ] ;
OSUtils : : ztsnprintf ( uniqueName , sizeof ( uniqueName ) , " ZeroTier/%.10llx@%u " , _node - > address ( ) , _ports [ 2 ] ) ;
_portMapper = new PortMapper ( _ports [ 2 ] , uniqueName ) ;
2015-10-22 23:02:01 +00:00
}
}
# endif
2020-05-12 08:35:48 +00:00
2017-07-06 17:25:36 +00:00
// Delete legacy iddb.d if present (cleanup)
OSUtils : : rmDashRf ( ( _homePath + ZT_PATH_SEPARATOR_S " iddb.d " ) . c_str ( ) ) ;
2015-05-17 22:51:07 +00:00
2017-06-02 03:32:43 +00:00
// Network controller is now enabled by default for desktop and server
2020-05-11 22:03:56 +00:00
_controller = new EmbeddedNetworkController ( _node , _homePath . c_str ( ) , _controllerDbPath . c_str ( ) , _ports [ 0 ] , _rc ) ;
2021-06-04 23:29:03 +00:00
if ( ! _ssoRedirectURL . empty ( ) ) {
_controller - > setSSORedirectURL ( _ssoRedirectURL ) ;
}
2015-10-06 22:56:18 +00:00
_node - > setNetconfMaster ( ( void * ) _controller ) ;
2015-04-14 01:12:45 +00:00
2017-06-06 23:11:19 +00:00
// Join existing networks in networks.d
{
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std : : vector < std : : string > networksDotD ( OSUtils : : listDirectory ( ( _homePath + ZT_PATH_SEPARATOR_S " networks.d " ) . c_str ( ) ) ) ;
2015-04-14 22:32:05 +00:00
for ( std : : vector < std : : string > : : iterator f ( networksDotD . begin ( ) ) ; f ! = networksDotD . end ( ) ; + + f ) {
std : : size_t dot = f - > find_last_of ( ' . ' ) ;
if ( ( dot = = 16 ) & & ( f - > substr ( 16 ) = = " .conf " ) )
2017-03-28 00:03:17 +00:00
_node - > join ( Utils : : hexStrToU64 ( f - > substr ( 0 , dot ) . c_str ( ) ) , ( void * ) 0 , ( void * ) 0 ) ;
2015-04-14 22:32:05 +00:00
}
}
2017-06-06 23:11:19 +00:00
// Orbit existing moons in moons.d
{
2017-01-27 23:27:26 +00:00
std : : vector < std : : string > moonsDotD ( OSUtils : : listDirectory ( ( _homePath + ZT_PATH_SEPARATOR_S " moons.d " ) . c_str ( ) ) ) ;
for ( std : : vector < std : : string > : : iterator f ( moonsDotD . begin ( ) ) ; f ! = moonsDotD . end ( ) ; + + f ) {
std : : size_t dot = f - > find_last_of ( ' . ' ) ;
if ( ( dot = = 16 ) & & ( f - > substr ( 16 ) = = " .moon " ) )
2017-03-28 00:03:17 +00:00
_node - > orbit ( ( void * ) 0 , Utils : : hexStrToU64 ( f - > substr ( 0 , dot ) . c_str ( ) ) , 0 ) ;
2017-01-27 23:27:26 +00:00
}
}
2015-11-05 20:41:14 +00:00
2017-06-02 03:32:43 +00:00
// Main I/O loop
2015-04-10 18:40:45 +00:00
_nextBackgroundTaskDeadline = 0 ;
2017-10-02 22:52:57 +00:00
int64_t clockShouldBe = OSUtils : : now ( ) ;
2015-05-22 21:52:23 +00:00
_lastRestart = clockShouldBe ;
2017-10-02 22:52:57 +00:00
int64_t lastTapMulticastGroupCheck = 0 ;
int64_t lastBindRefresh = 0 ;
int64_t lastUpdateCheck = clockShouldBe ;
2017-10-25 23:08:14 +00:00
int64_t lastCleanedPeersDb = 0 ;
2017-10-02 22:52:57 +00:00
int64_t lastLocalInterfaceAddressCheck = ( clockShouldBe - ZT_LOCAL_INTERFACE_CHECK_INTERVAL ) + 15000 ; // do this in 15s to give portmapper time to configure and other things time to settle
2018-09-11 23:55:46 +00:00
int64_t lastLocalConfFileCheck = OSUtils : : now ( ) ;
2021-08-31 20:47:00 +00:00
int64_t lastOnline = lastLocalConfFileCheck ;
2015-04-10 18:40:45 +00:00
for ( ; ; ) {
_run_m . lock ( ) ;
if ( ! _run ) {
_run_m . unlock ( ) ;
_termReason_m . lock ( ) ;
_termReason = ONE_NORMAL_TERMINATION ;
_termReason_m . unlock ( ) ;
break ;
2016-04-05 22:44:08 +00:00
} else {
_run_m . unlock ( ) ;
}
2015-04-10 18:40:45 +00:00
2017-10-02 22:52:57 +00:00
const int64_t now = OSUtils : : now ( ) ;
2016-04-05 22:44:08 +00:00
// Attempt to detect sleep/wake events by detecting delay overruns
bool restarted = false ;
if ( ( now > clockShouldBe ) & & ( ( now - clockShouldBe ) > 10000 ) ) {
_lastRestart = now ;
restarted = true ;
}
2017-01-12 00:34:33 +00:00
// Check for updates (if enabled)
if ( ( _updater ) & & ( ( now - lastUpdateCheck ) > 10000 ) ) {
lastUpdateCheck = now ;
2017-01-12 21:54:08 +00:00
if ( _updater - > check ( now ) & & _updateAutoApply )
_updater - > apply ( ) ;
2017-01-12 00:34:33 +00:00
}
2018-09-11 23:55:46 +00:00
// Reload local.conf if anything changed recently
if ( ( now - lastLocalConfFileCheck ) > = ZT_LOCAL_CONF_FILE_CHECK_INTERVAL ) {
lastLocalConfFileCheck = now ;
struct stat result ;
if ( stat ( ( _homePath + ZT_PATH_SEPARATOR_S " local.conf " ) . c_str ( ) , & result ) = = 0 ) {
int64_t mod_time = result . st_mtime * 1000 ;
if ( ( now - mod_time ) < = ZT_LOCAL_CONF_FILE_CHECK_INTERVAL ) {
readLocalSettings ( ) ;
applyLocalConfig ( ) ;
}
}
}
2021-08-31 20:47:00 +00:00
// If secondary port is not configured to a constant value and we've been offline for a while,
// bind a new secondary port. This is a workaround for a "coma" issue caused by buggy NATs that stop
// working on one port after a while.
if ( _node - > online ( ) ) {
lastOnline = now ;
} else if ( ( _secondaryPort = = 0 ) & & ( ( now - lastOnline ) > ZT_PATH_HEARTBEAT_PERIOD ) ) {
_secondaryPort = _getRandomPort ( ) ;
lastBindRefresh = 0 ;
}
2016-06-17 20:14:48 +00:00
// Refresh bindings in case device's interfaces have changed, and also sync routes to update any shadow routes (e.g. shadow default)
2020-05-12 08:35:48 +00:00
if ( ( ( now - lastBindRefresh ) > = ( _node - > bondController ( ) - > inUse ( ) ? ZT_BINDER_REFRESH_PERIOD / 4 : ZT_BINDER_REFRESH_PERIOD ) ) | | ( restarted ) ) {
2016-04-05 22:44:08 +00:00
lastBindRefresh = now ;
2017-06-06 23:11:19 +00:00
unsigned int p [ 3 ] ;
unsigned int pc = 0 ;
2016-04-05 22:44:08 +00:00
for ( int i = 0 ; i < 3 ; + + i ) {
2017-06-06 23:11:19 +00:00
if ( _ports [ i ] )
p [ pc + + ] = _ports [ i ] ;
2016-04-05 22:44:08 +00:00
}
2018-01-25 22:27:08 +00:00
_binder . refresh ( _phy , p , pc , explicitBind , * this ) ;
2016-06-17 20:14:48 +00:00
{
Mutex : : Lock _l ( _nets_m ) ;
for ( std : : map < uint64_t , NetworkState > : : iterator n ( _nets . begin ( ) ) ; n ! = _nets . end ( ) ; + + n ) {
2021-11-18 20:39:55 +00:00
if ( n - > second . tap ( ) )
2020-07-31 18:42:03 +00:00
syncManagedStuff ( n - > second , false , true , false ) ;
2016-06-17 20:14:48 +00:00
}
}
2016-04-05 22:44:08 +00:00
}
2015-05-22 21:52:23 +00:00
2017-06-06 23:11:19 +00:00
// Run background task processor in core if it's time to do so
2017-10-02 22:52:57 +00:00
int64_t dl = _nextBackgroundTaskDeadline ;
2015-04-10 18:40:45 +00:00
if ( dl < = now ) {
2017-03-28 00:03:17 +00:00
_node - > processBackgroundTasks ( ( void * ) 0 , now , & _nextBackgroundTaskDeadline ) ;
2015-04-10 18:40:45 +00:00
dl = _nextBackgroundTaskDeadline ;
2015-04-15 20:09:20 +00:00
}
2017-06-06 23:11:19 +00:00
// Close TCP fallback tunnel if we have direct UDP
2015-09-24 23:21:36 +00:00
if ( ( _tcpFallbackTunnel ) & & ( ( now - _lastDirectReceiveFromGlobal ) < ( ZT_TCP_FALLBACK_AFTER / 2 ) ) )
2015-05-22 01:33:52 +00:00
_phy . close ( _tcpFallbackTunnel - > sock ) ;
2017-06-06 23:11:19 +00:00
// Sync multicast group memberships
2015-04-15 20:09:20 +00:00
if ( ( now - lastTapMulticastGroupCheck ) > = ZT_TAP_CHECK_MULTICAST_INTERVAL ) {
lastTapMulticastGroupCheck = now ;
2018-01-11 22:29:57 +00:00
std : : vector < std : : pair < uint64_t , std : : pair < std : : vector < MulticastGroup > , std : : vector < MulticastGroup > > > > mgChanges ;
{
Mutex : : Lock _l ( _nets_m ) ;
mgChanges . reserve ( _nets . size ( ) + 1 ) ;
for ( std : : map < uint64_t , NetworkState > : : const_iterator n ( _nets . begin ( ) ) ; n ! = _nets . end ( ) ; + + n ) {
2021-11-18 20:39:55 +00:00
if ( n - > second . tap ( ) ) {
2018-01-11 22:29:57 +00:00
mgChanges . push_back ( std : : pair < uint64_t , std : : pair < std : : vector < MulticastGroup > , std : : vector < MulticastGroup > > > ( n - > first , std : : pair < std : : vector < MulticastGroup > , std : : vector < MulticastGroup > > ( ) ) ) ;
2021-11-18 20:39:55 +00:00
n - > second . tap ( ) - > scanMulticastGroups ( mgChanges . back ( ) . second . first , mgChanges . back ( ) . second . second ) ;
2018-01-11 22:29:57 +00:00
}
2016-06-14 17:09:26 +00:00
}
2015-04-15 20:09:20 +00:00
}
2018-01-11 22:29:57 +00:00
for ( std : : vector < std : : pair < uint64_t , std : : pair < std : : vector < MulticastGroup > , std : : vector < MulticastGroup > > > > : : iterator c ( mgChanges . begin ( ) ) ; c ! = mgChanges . end ( ) ; + + c ) {
for ( std : : vector < MulticastGroup > : : iterator m ( c - > second . first . begin ( ) ) ; m ! = c - > second . first . end ( ) ; + + m )
_node - > multicastSubscribe ( ( void * ) 0 , c - > first , m - > mac ( ) . toInt ( ) , m - > adi ( ) ) ;
for ( std : : vector < MulticastGroup > : : iterator m ( c - > second . second . begin ( ) ) ; m ! = c - > second . second . end ( ) ; + + m )
_node - > multicastUnsubscribe ( c - > first , m - > mac ( ) . toInt ( ) , m - > adi ( ) ) ;
}
2015-04-10 18:40:45 +00:00
}
2017-06-06 23:11:19 +00:00
// Sync information about physical network interfaces
2020-05-12 08:35:48 +00:00
if ( ( now - lastLocalInterfaceAddressCheck ) > = ( _node - > bondController ( ) - > inUse ( ) ? ZT_LOCAL_INTERFACE_CHECK_INTERVAL / 8 : ZT_LOCAL_INTERFACE_CHECK_INTERVAL ) ) {
2015-07-06 23:32:34 +00:00
lastLocalInterfaceAddressCheck = now ;
2016-04-05 22:53:19 +00:00
_node - > clearLocalInterfaceAddresses ( ) ;
2016-01-11 17:11:35 +00:00
2016-04-05 22:53:19 +00:00
# ifdef ZT_USE_MINIUPNPC
if ( _portMapper ) {
std : : vector < InetAddress > mappedAddresses ( _portMapper - > get ( ) ) ;
for ( std : : vector < InetAddress > : : const_iterator ext ( mappedAddresses . begin ( ) ) ; ext ! = mappedAddresses . end ( ) ; + + ext )
_node - > addLocalInterfaceAddress ( reinterpret_cast < const struct sockaddr_storage * > ( & ( * ext ) ) ) ;
2015-07-06 23:32:34 +00:00
}
2016-04-05 22:53:19 +00:00
# endif
2015-07-06 23:32:34 +00:00
2017-06-06 23:11:19 +00:00
std : : vector < InetAddress > boundAddrs ( _binder . allBoundLocalInterfaceAddresses ( ) ) ;
2020-05-12 08:35:48 +00:00
for ( std : : vector < InetAddress > : : const_iterator i ( boundAddrs . begin ( ) ) ; i ! = boundAddrs . end ( ) ; + + i ) {
2016-04-05 22:53:19 +00:00
_node - > addLocalInterfaceAddress ( reinterpret_cast < const struct sockaddr_storage * > ( & ( * i ) ) ) ;
2020-05-12 08:35:48 +00:00
}
2015-07-06 23:32:34 +00:00
}
2017-10-25 23:08:14 +00:00
// Clean peers.d periodically
if ( ( now - lastCleanedPeersDb ) > = 3600000 ) {
lastCleanedPeersDb = now ;
OSUtils : : cleanDirectory ( ( _homePath + ZT_PATH_SEPARATOR_S " peers.d " ) . c_str ( ) , now - 2592000000LL ) ; // delete older than 30 days
}
2020-11-14 01:25:03 +00:00
const unsigned long delay = ( dl > now ) ? ( unsigned long ) ( dl - now ) : 500 ;
clockShouldBe = now + ( int64_t ) delay ;
2015-04-10 18:40:45 +00:00
_phy . poll ( delay ) ;
}
2017-11-04 00:55:16 +00:00
} catch ( std : : exception & e ) {
2015-04-10 18:40:45 +00:00
Mutex : : Lock _l ( _termReason_m ) ;
_termReason = ONE_UNRECOVERABLE_ERROR ;
2017-11-04 00:55:16 +00:00
_fatalErrorMessage = std : : string ( " unexpected exception in main thread: " ) + e . what ( ) ;
2015-04-10 18:40:45 +00:00
} catch ( . . . ) {
Mutex : : Lock _l ( _termReason_m ) ;
_termReason = ONE_UNRECOVERABLE_ERROR ;
2017-11-04 00:55:16 +00:00
_fatalErrorMessage = " unexpected exception in main thread: unknown exception " ;
2015-04-10 18:40:45 +00:00
}
2015-04-11 02:36:29 +00:00
try {
2017-06-05 19:15:28 +00:00
Mutex : : Lock _l ( _tcpConnections_m ) ;
2015-05-22 01:33:52 +00:00
while ( ! _tcpConnections . empty ( ) )
2015-05-22 22:46:06 +00:00
_phy . close ( ( * _tcpConnections . begin ( ) ) - > sock ) ;
2015-04-11 02:36:29 +00:00
} catch ( . . . ) { }
2015-04-15 00:57:51 +00:00
{
2016-06-14 17:09:26 +00:00
Mutex : : Lock _l ( _nets_m ) ;
_nets . clear ( ) ;
2015-04-15 00:57:51 +00:00
}
2017-01-12 00:34:33 +00:00
delete _updater ;
_updater = ( SoftwareUpdater * ) 0 ;
2015-04-10 18:40:45 +00:00
delete _node ;
_node = ( Node * ) 0 ;
return _termReason ;
}
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void readLocalSettings ( )
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{
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// Read local configuration
std : : map < InetAddress , ZT_PhysicalPathConfiguration > ppc ;
// LEGACY: support old "trustedpaths" flat file
FILE * trustpaths = fopen ( ( _homePath + ZT_PATH_SEPARATOR_S " trustedpaths " ) . c_str ( ) , " r " ) ;
if ( trustpaths ) {
fprintf ( stderr , " WARNING: 'trustedpaths' flat file format is deprecated in favor of path definitions in local.conf " ZT_EOL_S ) ;
char buf [ 1024 ] ;
while ( fgets ( buf , sizeof ( buf ) , trustpaths ) ) {
int fno = 0 ;
char * saveptr = ( char * ) 0 ;
uint64_t trustedPathId = 0 ;
InetAddress trustedPathNetwork ;
for ( char * f = Utils : : stok ( buf , " = \r \n \t " , & saveptr ) ; ( f ) ; f = Utils : : stok ( ( char * ) 0 , " = \r \n \t " , & saveptr ) ) {
if ( fno = = 0 ) {
trustedPathId = Utils : : hexStrToU64 ( f ) ;
} else if ( fno = = 1 ) {
trustedPathNetwork = InetAddress ( f ) ;
} else break ;
+ + fno ;
}
if ( ( trustedPathId ! = 0 ) & & ( ( trustedPathNetwork . ss_family = = AF_INET ) | | ( trustedPathNetwork . ss_family = = AF_INET6 ) ) & & ( trustedPathNetwork . netmaskBits ( ) > 0 ) ) {
ppc [ trustedPathNetwork ] . trustedPathId = trustedPathId ;
ppc [ trustedPathNetwork ] . mtu = 0 ; // use default
}
}
fclose ( trustpaths ) ;
}
// Read local config file
Mutex : : Lock _l2 ( _localConfig_m ) ;
std : : string lcbuf ;
if ( OSUtils : : readFile ( ( _homePath + ZT_PATH_SEPARATOR_S " local.conf " ) . c_str ( ) , lcbuf ) ) {
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if ( lcbuf . length ( ) > 0 ) {
try {
_localConfig = OSUtils : : jsonParse ( lcbuf ) ;
if ( ! _localConfig . is_object ( ) ) {
fprintf ( stderr , " ERROR: unable to parse local.conf (root element is not a JSON object) " ZT_EOL_S ) ;
exit ( 1 ) ;
}
} catch ( . . . ) {
fprintf ( stderr , " ERROR: unable to parse local.conf (invalid JSON) " ZT_EOL_S ) ;
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exit ( 1 ) ;
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}
}
}
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// Make a copy so lookups don't modify in place;
json lc ( _localConfig ) ;
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// Get any trusted paths in local.conf (we'll parse the rest of physical[] elsewhere)
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json & physical = lc [ " physical " ] ;
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if ( physical . is_object ( ) ) {
for ( json : : iterator phy ( physical . begin ( ) ) ; phy ! = physical . end ( ) ; + + phy ) {
InetAddress net ( OSUtils : : jsonString ( phy . key ( ) , " " ) . c_str ( ) ) ;
if ( net ) {
if ( phy . value ( ) . is_object ( ) ) {
uint64_t tpid ;
if ( ( tpid = OSUtils : : jsonInt ( phy . value ( ) [ " trustedPathId " ] , 0ULL ) ) ! = 0ULL ) {
if ( ( net . ss_family = = AF_INET ) | | ( net . ss_family = = AF_INET6 ) )
ppc [ net ] . trustedPathId = tpid ;
}
ppc [ net ] . mtu = ( int ) OSUtils : : jsonInt ( phy . value ( ) [ " mtu " ] , 0ULL ) ; // 0 means use default
}
}
}
}
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json & settings = lc [ " settings " ] ;
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if ( settings . is_object ( ) ) {
// Allow controller DB path to be put somewhere else
const std : : string cdbp ( OSUtils : : jsonString ( settings [ " controllerDbPath " ] , " " ) ) ;
if ( cdbp . length ( ) > 0 )
_controllerDbPath = cdbp ;
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_ssoRedirectURL = OSUtils : : jsonString ( settings [ " ssoRedirectURL " ] , " " ) ;
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# ifdef ZT_CONTROLLER_USE_LIBPQ
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// TODO: Redis config
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json & redis = settings [ " redis " ] ;
if ( redis . is_object ( ) & & _rc = = NULL ) {
_rc = new RedisConfig ;
_rc - > hostname = OSUtils : : jsonString ( redis [ " hostname " ] , " " ) ;
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_rc - > port = OSUtils : : jsonInt ( redis [ " port " ] , 0 ) ;
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_rc - > password = OSUtils : : jsonString ( redis [ " password " ] , " " ) ;
_rc - > clusterMode = OSUtils : : jsonBool ( redis [ " clusterMode " ] , false ) ;
}
# endif
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// Bind to wildcard instead of to specific interfaces (disables full tunnel capability)
json & bind = settings [ " bind " ] ;
if ( bind . is_array ( ) ) {
for ( unsigned long i = 0 ; i < bind . size ( ) ; + + i ) {
const std : : string ips ( OSUtils : : jsonString ( bind [ i ] , " " ) ) ;
if ( ips . length ( ) > 0 ) {
InetAddress ip ( ips . c_str ( ) ) ;
if ( ( ip . ss_family = = AF_INET ) | | ( ip . ss_family = = AF_INET6 ) )
explicitBind . push_back ( ip ) ;
}
}
}
}
// Set trusted paths if there are any
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if ( ! ppc . empty ( ) ) {
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for ( std : : map < InetAddress , ZT_PhysicalPathConfiguration > : : iterator i ( ppc . begin ( ) ) ; i ! = ppc . end ( ) ; + + i )
_node - > setPhysicalPathConfiguration ( reinterpret_cast < const struct sockaddr_storage * > ( & ( i - > first ) ) , & ( i - > second ) ) ;
}
}
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virtual ReasonForTermination reasonForTermination ( ) const
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{
Mutex : : Lock _l ( _termReason_m ) ;
return _termReason ;
}
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virtual std : : string fatalErrorMessage ( ) const
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{
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Mutex : : Lock _l ( _termReason_m ) ;
return _fatalErrorMessage ;
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}
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virtual std : : string portDeviceName ( uint64_t nwid ) const
{
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Mutex : : Lock _l ( _nets_m ) ;
std : : map < uint64_t , NetworkState > : : const_iterator n ( _nets . find ( nwid ) ) ;
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if ( ( n ! = _nets . end ( ) ) & & ( n - > second . tap ( ) ) )
return n - > second . tap ( ) - > deviceName ( ) ;
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else return std : : string ( ) ;
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}
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# ifdef ZT_SDK
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virtual std : : string givenHomePath ( )
{
return _homePath ;
}
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void getRoutes ( uint64_t nwid , void * routeArray , unsigned int * numRoutes )
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{
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Mutex : : Lock _l ( _nets_m ) ;
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NetworkState & n = _nets [ nwid ] ;
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* numRoutes = * numRoutes < n . config ( ) . routeCount ? * numRoutes : n . config ( ) . routeCount ;
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for ( unsigned int i = 0 ; i < * numRoutes ; i + + ) {
ZT_VirtualNetworkRoute * vnr = ( ZT_VirtualNetworkRoute * ) routeArray ;
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memcpy ( & vnr [ i ] , & ( n . config ( ) . routes [ i ] ) , sizeof ( ZT_VirtualNetworkRoute ) ) ;
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}
}
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virtual Node * getNode ( )
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{
return _node ;
}
# endif // ZT_SDK
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virtual void terminate ( )
{
_run_m . lock ( ) ;
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_run = false ;
_run_m . unlock ( ) ;
_phy . whack ( ) ;
}
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virtual bool getNetworkSettings ( const uint64_t nwid , NetworkSettings & settings ) const
{
Mutex : : Lock _l ( _nets_m ) ;
std : : map < uint64_t , NetworkState > : : const_iterator n ( _nets . find ( nwid ) ) ;
if ( n = = _nets . end ( ) )
return false ;
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settings = n - > second . settings ( ) ;
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return true ;
}
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virtual bool setNetworkSettings ( const uint64_t nwid , const NetworkSettings & settings )
{
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char nlcpath [ 4096 ] ;
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OSUtils : : ztsnprintf ( nlcpath , sizeof ( nlcpath ) , " %s " ZT_PATH_SEPARATOR_S " %.16llx.local.conf " , _networksPath . c_str ( ) , nwid ) ;
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FILE * out = fopen ( nlcpath , " w " ) ;
if ( out ) {
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fprintf ( out , " allowManaged=%d \n " , ( int ) settings . allowManaged ) ;
fprintf ( out , " allowGlobal=%d \n " , ( int ) settings . allowGlobal ) ;
fprintf ( out , " allowDefault=%d \n " , ( int ) settings . allowDefault ) ;
fprintf ( out , " allowDNS=%d \n " , ( int ) settings . allowDNS ) ;
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fclose ( out ) ;
}
return true ;
}
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// =========================================================================
// Internal implementation methods for control plane, route setup, etc.
// =========================================================================
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inline unsigned int handleControlPlaneHttpRequest (
const InetAddress & fromAddress ,
unsigned int httpMethod ,
const std : : string & path ,
const std : : map < std : : string , std : : string > & headers ,
const std : : string & body ,
std : : string & responseBody ,
std : : string & responseContentType )
{
char tmp [ 256 ] ;
unsigned int scode = 404 ;
json res ;
std : : vector < std : : string > ps ( OSUtils : : split ( path . c_str ( ) , " / " , " " , " " ) ) ;
std : : map < std : : string , std : : string > urlArgs ;
/* Note: this is kind of restricted in what it'll take. It does not support
* URL encoding , and / ' s in URL args will screw it up . But the only URL args
* it really uses in ? jsonp = funcionName , and otherwise it just takes simple
* paths to simply - named resources . */
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if ( ! ps . empty ( ) ) {
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std : : size_t qpos = ps [ ps . size ( ) - 1 ] . find ( ' ? ' ) ;
if ( qpos ! = std : : string : : npos ) {
std : : string args ( ps [ ps . size ( ) - 1 ] . substr ( qpos + 1 ) ) ;
ps [ ps . size ( ) - 1 ] = ps [ ps . size ( ) - 1 ] . substr ( 0 , qpos ) ;
std : : vector < std : : string > asplit ( OSUtils : : split ( args . c_str ( ) , " & " , " " , " " ) ) ;
for ( std : : vector < std : : string > : : iterator a ( asplit . begin ( ) ) ; a ! = asplit . end ( ) ; + + a ) {
std : : size_t eqpos = a - > find ( ' = ' ) ;
if ( eqpos = = std : : string : : npos )
urlArgs [ * a ] = " " ;
else urlArgs [ a - > substr ( 0 , eqpos ) ] = a - > substr ( eqpos + 1 ) ;
}
}
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} else {
return 404 ;
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}
bool isAuth = false ;
{
std : : map < std : : string , std : : string > : : const_iterator ah ( headers . find ( " x-zt1-auth " ) ) ;
if ( ( ah ! = headers . end ( ) ) & & ( _authToken = = ah - > second ) ) {
isAuth = true ;
} else {
ah = urlArgs . find ( " auth " ) ;
if ( ( ah ! = urlArgs . end ( ) ) & & ( _authToken = = ah - > second ) )
isAuth = true ;
}
}
# ifdef __SYNOLOGY__
// Authenticate via Synology's built-in cgi script
if ( ! isAuth ) {
int synotoken_pos = path . find ( " SynoToken " ) ;
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int argpos = path . find ( ' ? ' ) ;
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if ( synotoken_pos ! = std : : string : : npos & & argpos ! = std : : string : : npos ) {
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std : : string cookie = path . substr ( argpos + 1 , synotoken_pos - ( argpos + 1 ) ) ;
std : : string synotoken = path . substr ( synotoken_pos ) ;
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std : : string cookie_val = cookie . substr ( cookie . find ( ' = ' ) + 1 ) ;
std : : string synotoken_val = synotoken . substr ( synotoken . find ( ' = ' ) + 1 ) ;
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// Set necessary env for auth script
std : : map < std : : string , std : : string > : : const_iterator ah2 ( headers . find ( " x-forwarded-for " ) ) ;
setenv ( " HTTP_COOKIE " , cookie_val . c_str ( ) , true ) ;
setenv ( " HTTP_X_SYNO_TOKEN " , synotoken_val . c_str ( ) , true ) ;
setenv ( " REMOTE_ADDR " , ah2 - > second . c_str ( ) , true ) ;
char user [ 256 ] , buf [ 1024 ] ;
FILE * fp = NULL ;
bzero ( user , 256 ) ;
fp = popen ( " /usr/syno/synoman/webman/modules/authenticate.cgi " , " r " ) ;
if ( ! fp )
isAuth = false ;
else {
bzero ( buf , sizeof ( buf ) ) ;
fread ( buf , 1024 , 1 , fp ) ;
if ( strlen ( buf ) > 0 ) {
snprintf ( user , 256 , " %s " , buf ) ;
isAuth = true ;
}
}
pclose ( fp ) ;
}
}
# endif
if ( httpMethod = = HTTP_GET ) {
if ( isAuth ) {
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if ( ps [ 0 ] = = " bond " ) {
if ( _node - > bondController ( ) - > inUse ( ) ) {
if ( ps . size ( ) = = 3 ) {
//fprintf(stderr, "ps[0]=%s\nps[1]=%s\nps[2]=%s\n", ps[0].c_str(), ps[1].c_str(), ps[2].c_str());
if ( ps [ 2 ] . length ( ) = = 10 ) {
// check if hex string
const uint64_t id = Utils : : hexStrToU64 ( ps [ 2 ] . c_str ( ) ) ;
if ( ps [ 1 ] = = " show " ) {
SharedPtr < Bond > bond = _node - > bondController ( ) - > getBondByPeerId ( id ) ;
if ( bond ) {
_bondToJson ( res , bond ) ;
scode = 200 ;
} else {
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fprintf ( stderr , " unable to find bond to peer %llx \n " , ( unsigned long long ) id ) ;
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scode = 400 ;
}
}
if ( ps [ 1 ] = = " flows " ) {
fprintf ( stderr , " displaying flows \n " ) ;
}
}
}
} else {
scode = 400 ; /* bond controller is not enabled */
}
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} else if ( ps [ 0 ] = = " config " ) {
Mutex : : Lock lc ( _localConfig_m ) ;
res = _localConfig ;
scode = 200 ;
} else if ( ps [ 0 ] = = " status " ) {
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ZT_NodeStatus status ;
_node - > status ( & status ) ;
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OSUtils : : ztsnprintf ( tmp , sizeof ( tmp ) , " %.10llx " , status . address ) ;
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res [ " address " ] = tmp ;
res [ " publicIdentity " ] = status . publicIdentity ;
res [ " online " ] = ( bool ) ( status . online ! = 0 ) ;
res [ " tcpFallbackActive " ] = ( _tcpFallbackTunnel ! = ( TcpConnection * ) 0 ) ;
res [ " versionMajor " ] = ZEROTIER_ONE_VERSION_MAJOR ;
res [ " versionMinor " ] = ZEROTIER_ONE_VERSION_MINOR ;
res [ " versionRev " ] = ZEROTIER_ONE_VERSION_REVISION ;
res [ " versionBuild " ] = ZEROTIER_ONE_VERSION_BUILD ;
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OSUtils : : ztsnprintf ( tmp , sizeof ( tmp ) , " %d.%d.%d " , ZEROTIER_ONE_VERSION_MAJOR , ZEROTIER_ONE_VERSION_MINOR , ZEROTIER_ONE_VERSION_REVISION ) ;
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res [ " version " ] = tmp ;
res [ " clock " ] = OSUtils : : now ( ) ;
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{
Mutex : : Lock _l ( _localConfig_m ) ;
res [ " config " ] = _localConfig ;
}
json & settings = res [ " config " ] [ " settings " ] ;
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settings [ " allowTcpFallbackRelay " ] = OSUtils : : jsonBool ( settings [ " allowTcpFallbackRelay " ] , _allowTcpFallbackRelay ) ;
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settings [ " primaryPort " ] = OSUtils : : jsonInt ( settings [ " primaryPort " ] , ( uint64_t ) _primaryPort ) & 0xffff ;
settings [ " secondaryPort " ] = OSUtils : : jsonInt ( settings [ " secondaryPort " ] , ( uint64_t ) _secondaryPort ) & 0xffff ;
settings [ " tertiaryPort " ] = OSUtils : : jsonInt ( settings [ " tertiaryPort " ] , ( uint64_t ) _tertiaryPort ) & 0xffff ;
// Enumerate all external listening address/port pairs
std : : vector < InetAddress > boundAddrs ( _binder . allBoundLocalInterfaceAddresses ( ) ) ;
auto boundAddrArray = json : : array ( ) ;
for ( int i = 0 ; i < boundAddrs . size ( ) ; i + + ) {
char ipBuf [ 64 ] = { 0 } ;
boundAddrs [ i ] . toString ( ipBuf ) ;
boundAddrArray . push_back ( ipBuf ) ;
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}
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settings [ " listeningOn " ] = boundAddrArray ;
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# ifdef ZT_USE_MINIUPNPC
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settings [ " portMappingEnabled " ] = OSUtils : : jsonBool ( settings [ " portMappingEnabled " ] , true ) ;
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# else
settings [ " portMappingEnabled " ] = false ; // not supported in build
# endif
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# ifndef ZT_SDK
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settings [ " softwareUpdate " ] = OSUtils : : jsonString ( settings [ " softwareUpdate " ] , ZT_SOFTWARE_UPDATE_DEFAULT ) ;
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settings [ " softwareUpdateChannel " ] = OSUtils : : jsonString ( settings [ " softwareUpdateChannel " ] , ZT_SOFTWARE_UPDATE_DEFAULT_CHANNEL ) ;
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# endif
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const World planet ( _node - > planet ( ) ) ;
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res [ " planetWorldId " ] = planet . id ( ) ;
res [ " planetWorldTimestamp " ] = planet . timestamp ( ) ;
scode = 200 ;
} else if ( ps [ 0 ] = = " moon " ) {
std : : vector < World > moons ( _node - > moons ( ) ) ;
if ( ps . size ( ) = = 1 ) {
// Return [array] of all moons
res = json : : array ( ) ;
for ( std : : vector < World > : : const_iterator m ( moons . begin ( ) ) ; m ! = moons . end ( ) ; + + m ) {
json mj ;
_moonToJson ( mj , * m ) ;
res . push_back ( mj ) ;
}
scode = 200 ;
} else {
// Return a single moon by ID
const uint64_t id = Utils : : hexStrToU64 ( ps [ 1 ] . c_str ( ) ) ;
for ( std : : vector < World > : : const_iterator m ( moons . begin ( ) ) ; m ! = moons . end ( ) ; + + m ) {
if ( m - > id ( ) = = id ) {
_moonToJson ( res , * m ) ;
scode = 200 ;
break ;
}
}
}
} else if ( ps [ 0 ] = = " network " ) {
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Mutex : : Lock _l ( _nets_m ) ;
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if ( ps . size ( ) = = 1 ) {
// Return [array] of all networks
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res = nlohmann : : json : : array ( ) ;
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for ( auto it = _nets . begin ( ) ; it ! = _nets . end ( ) ; + + it ) {
NetworkState & ns = it - > second ;
nlohmann : : json nj ;
_networkToJson ( nj , ns ) ;
res . push_back ( nj ) ;
}
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scode = 200 ;
} else if ( ps . size ( ) = = 2 ) {
// Return a single network by ID or 404 if not found
const uint64_t wantnw = Utils : : hexStrToU64 ( ps [ 1 ] . c_str ( ) ) ;
if ( _nets . find ( wantnw ) ! = _nets . end ( ) ) {
res = json : : object ( ) ;
NetworkState & ns = _nets [ wantnw ] ;
_networkToJson ( res , ns ) ;
scode = 200 ;
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}
} else {
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scode = 404 ;
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}
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} else if ( ps [ 0 ] = = " peer " ) {
ZT_PeerList * pl = _node - > peers ( ) ;
if ( pl ) {
if ( ps . size ( ) = = 1 ) {
// Return [array] of all peers
res = nlohmann : : json : : array ( ) ;
for ( unsigned long i = 0 ; i < pl - > peerCount ; + + i ) {
nlohmann : : json pj ;
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_peerToJson ( pj , & ( pl - > peers [ i ] ) ) ;
res . push_back ( pj ) ;
}
scode = 200 ;
} else if ( ps . size ( ) = = 2 ) {
// Return a single peer by ID or 404 if not found
uint64_t wantp = Utils : : hexStrToU64 ( ps [ 1 ] . c_str ( ) ) ;
for ( unsigned long i = 0 ; i < pl - > peerCount ; + + i ) {
if ( pl - > peers [ i ] . address = = wantp ) {
_peerToJson ( res , & ( pl - > peers [ i ] ) ) ;
scode = 200 ;
break ;
}
}
} else scode = 404 ;
_node - > freeQueryResult ( ( void * ) pl ) ;
} else scode = 500 ;
} else if ( ps [ 0 ] = = " bonds " ) {
ZT_PeerList * pl = _node - > peers ( ) ;
if ( pl ) {
if ( ps . size ( ) = = 1 ) {
// Return [array] of all peers
res = nlohmann : : json : : array ( ) ;
for ( unsigned long i = 0 ; i < pl - > peerCount ; + + i ) {
nlohmann : : json pj ;
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_peerToJson ( pj , & ( pl - > peers [ i ] ) ) ;
res . push_back ( pj ) ;
}
scode = 200 ;
} else if ( ps . size ( ) = = 2 ) {
// Return a single peer by ID or 404 if not found
uint64_t wantp = Utils : : hexStrToU64 ( ps [ 1 ] . c_str ( ) ) ;
for ( unsigned long i = 0 ; i < pl - > peerCount ; + + i ) {
if ( pl - > peers [ i ] . address = = wantp ) {
_peerToJson ( res , & ( pl - > peers [ i ] ) ) ;
scode = 200 ;
break ;
}
}
} else scode = 404 ;
_node - > freeQueryResult ( ( void * ) pl ) ;
} else scode = 500 ;
} else {
if ( _controller ) {
scode = _controller - > handleControlPlaneHttpGET ( std : : vector < std : : string > ( ps . begin ( ) + 1 , ps . end ( ) ) , urlArgs , headers , body , responseBody , responseContentType ) ;
} else scode = 404 ;
}
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# if ZT_SSO_ENABLED
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} else if ( ps [ 0 ] = = " sso " ) {
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char resBuf [ 4096 ] = { 0 } ;
const char * error = zeroidc : : zeroidc_get_url_param_value ( " error " , path . c_str ( ) ) ;
if ( error ! = nullptr ) {
const char * desc = zeroidc : : zeroidc_get_url_param_value ( " error_description " , path . c_str ( ) ) ;
scode = 500 ;
char errBuff [ 256 ] = { 0 } ;
sprintf ( errBuff , " ERROR %s: %s " , error , desc ) ;
sprintf ( resBuf , ssoResponseTemplate , errBuff ) ;
responseBody = std : : string ( resBuf ) ;
responseContentType = " text/html " ;
return scode ;
}
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// SSO redirect handling
2022-04-15 16:15:44 +00:00
char * state = zeroidc : : zeroidc_get_url_param_value ( " state " , path . c_str ( ) ) ;
char * nwid = zeroidc : : zeroidc_network_id_from_state ( state ) ;
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2021-12-02 00:57:18 +00:00
const uint64_t id = Utils : : hexStrToU64 ( nwid ) ;
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zeroidc : : free_cstr ( nwid ) ;
zeroidc : : free_cstr ( state ) ;
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Mutex : : Lock l ( _nets_m ) ;
if ( _nets . find ( id ) ! = _nets . end ( ) ) {
NetworkState & ns = _nets [ id ] ;
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char * code = zeroidc : : zeroidc_get_url_param_value ( " code " , path . c_str ( ) ) ;
char * ret = ns . doTokenExchange ( code ) ;
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json ssoResult = json : : parse ( ret ) ;
if ( ssoResult . is_object ( ) ) {
if ( ssoResult . contains ( " errorMessage " ) ) {
std : : string errorMessage = ssoResult [ " errorMessage " ] ;
char errBuff [ 256 ] = { 0 } ;
sprintf ( errBuff , " ERROR: %s " , errorMessage . c_str ( ) ) ;
sprintf ( resBuf , ssoResponseTemplate , errBuff ) ;
scode = 500 ;
} else {
scode = 200 ;
sprintf ( resBuf , ssoResponseTemplate , " Authentication Successful. You may now access the network. " ) ;
}
} else {
// not an object? We got a problem
sprintf ( resBuf , ssoResponseTemplate , " Error: Unknown SSO response. " ) ;
scode = 500 ;
}
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2022-04-15 16:15:44 +00:00
zeroidc : : free_cstr ( code ) ;
zeroidc : : free_cstr ( ret ) ;
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responseBody = std : : string ( resBuf ) ;
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responseContentType = " text/html " ;
return scode ;
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} else {
scode = 404 ;
}
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# endif
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} else {
scode = 401 ; // isAuth == false && !sso
}
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} else if ( ( httpMethod = = HTTP_POST ) | | ( httpMethod = = HTTP_PUT ) ) {
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if ( isAuth ) {
if ( ps [ 0 ] = = " bond " ) {
if ( _node - > bondController ( ) - > inUse ( ) ) {
if ( ps . size ( ) = = 3 ) {
//fprintf(stderr, "ps[0]=%s\nps[1]=%s\nps[2]=%s\n", ps[0].c_str(), ps[1].c_str(), ps[2].c_str());
if ( ps [ 2 ] . length ( ) = = 10 ) {
// check if hex string
const uint64_t id = Utils : : hexStrToU64 ( ps [ 2 ] . c_str ( ) ) ;
if ( ps [ 1 ] = = " rotate " ) {
SharedPtr < Bond > bond = _node - > bondController ( ) - > getBondByPeerId ( id ) ;
if ( bond ) {
scode = bond - > abForciblyRotateLink ( ) ? 200 : 400 ;
} else {
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fprintf ( stderr , " unable to find bond to peer %llx \n " , ( unsigned long long ) id ) ;
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scode = 400 ;
}
}
if ( ps [ 1 ] = = " enable " ) {
fprintf ( stderr , " enabling bond \n " ) ;
}
}
}
} else {
scode = 400 ; /* bond controller is not enabled */
}
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} else if ( ps [ 0 ] = = " config " ) {
// Right now we only support writing the things the UI supports changing.
if ( ps . size ( ) = = 2 ) {
if ( ps [ 1 ] = = " settings " ) {
try {
json j ( OSUtils : : jsonParse ( body ) ) ;
if ( j . is_object ( ) ) {
Mutex : : Lock lcl ( _localConfig_m ) ;
json lc ( _localConfig ) ;
for ( json : : const_iterator s ( j . begin ( ) ) ; s ! = j . end ( ) ; + + s ) {
lc [ " settings " ] [ s . key ( ) ] = s . value ( ) ;
}
std : : string lcStr = OSUtils : : jsonDump ( lc , 4 ) ;
if ( OSUtils : : writeFile ( ( _homePath + ZT_PATH_SEPARATOR_S " local.conf " ) . c_str ( ) , lcStr ) ) {
_localConfig = lc ;
}
} else {
scode = 400 ;
}
} catch ( . . . ) {
scode = 400 ;
}
} else {
scode = 404 ;
}
} else {
scode = 404 ;
}
} else if ( ps [ 0 ] = = " moon " ) {
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if ( ps . size ( ) = = 2 ) {
uint64_t seed = 0 ;
try {
json j ( OSUtils : : jsonParse ( body ) ) ;
if ( j . is_object ( ) ) {
seed = Utils : : hexStrToU64 ( OSUtils : : jsonString ( j [ " seed " ] , " 0 " ) . c_str ( ) ) ;
}
} catch ( . . . ) {
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// discard invalid JSON
2017-03-07 21:53:11 +00:00
}
std : : vector < World > moons ( _node - > moons ( ) ) ;
const uint64_t id = Utils : : hexStrToU64 ( ps [ 1 ] . c_str ( ) ) ;
for ( std : : vector < World > : : const_iterator m ( moons . begin ( ) ) ; m ! = moons . end ( ) ; + + m ) {
if ( m - > id ( ) = = id ) {
_moonToJson ( res , * m ) ;
scode = 200 ;
break ;
}
}
if ( ( scode ! = 200 ) & & ( seed ! = 0 ) ) {
char tmp [ 64 ] ;
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OSUtils : : ztsnprintf ( tmp , sizeof ( tmp ) , " %.16llx " , id ) ;
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res [ " id " ] = tmp ;
res [ " roots " ] = json : : array ( ) ;
res [ " timestamp " ] = 0 ;
res [ " signature " ] = json ( ) ;
res [ " updatesMustBeSignedBy " ] = json ( ) ;
res [ " waiting " ] = true ;
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_node - > orbit ( ( void * ) 0 , id , seed ) ;
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scode = 200 ;
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}
} else scode = 404 ;
} else if ( ps [ 0 ] = = " network " ) {
if ( ps . size ( ) = = 2 ) {
uint64_t wantnw = Utils : : hexStrToU64 ( ps [ 1 ] . c_str ( ) ) ;
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_node - > join ( wantnw , ( void * ) 0 , ( void * ) 0 ) ; // does nothing if we are a member
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Mutex : : Lock l ( _nets_m ) ;
if ( ! _nets . empty ( ) ) {
if ( _nets . find ( wantnw ) ! = _nets . end ( ) ) {
NetworkState & ns = _nets [ wantnw ] ;
try {
json j ( OSUtils : : jsonParse ( body ) ) ;
json & allowManaged = j [ " allowManaged " ] ;
if ( allowManaged . is_boolean ( ) ) {
ns . setAllowManaged ( ( bool ) allowManaged ) ;
}
json & allowGlobal = j [ " allowGlobal " ] ;
if ( allowGlobal . is_boolean ( ) ) {
ns . setAllowGlobal ( ( bool ) allowGlobal ) ;
}
json & allowDefault = j [ " allowDefault " ] ;
if ( allowDefault . is_boolean ( ) ) {
ns . setAllowDefault ( ( bool ) allowDefault ) ;
}
json & allowDNS = j [ " allowDNS " ] ;
if ( allowDNS . is_boolean ( ) ) {
ns . setAllowDNS ( ( bool ) allowDNS ) ;
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}
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} catch ( . . . ) {
// discard invalid JSON
}
setNetworkSettings ( wantnw , ns . settings ( ) ) ;
if ( ns . tap ( ) ) {
syncManagedStuff ( ns , true , true , true ) ;
}
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_networkToJson ( res , ns ) ;
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scode = 200 ;
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}
} else scode = 500 ;
} else scode = 404 ;
} else {
if ( _controller )
scode = _controller - > handleControlPlaneHttpPOST ( std : : vector < std : : string > ( ps . begin ( ) + 1 , ps . end ( ) ) , urlArgs , headers , body , responseBody , responseContentType ) ;
else scode = 404 ;
}
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} else {
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scode = 401 ; // isAuth == false
}
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} else if ( httpMethod = = HTTP_DELETE ) {
if ( isAuth ) {
if ( ps [ 0 ] = = " moon " ) {
if ( ps . size ( ) = = 2 ) {
2017-03-28 00:03:17 +00:00
_node - > deorbit ( ( void * ) 0 , Utils : : hexStrToU64 ( ps [ 1 ] . c_str ( ) ) ) ;
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res [ " result " ] = true ;
scode = 200 ;
} // else 404
} else if ( ps [ 0 ] = = " network " ) {
ZT_VirtualNetworkList * nws = _node - > networks ( ) ;
if ( nws ) {
if ( ps . size ( ) = = 2 ) {
uint64_t wantnw = Utils : : hexStrToU64 ( ps [ 1 ] . c_str ( ) ) ;
for ( unsigned long i = 0 ; i < nws - > networkCount ; + + i ) {
if ( nws - > networks [ i ] . nwid = = wantnw ) {
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_node - > leave ( wantnw , ( void * * ) 0 , ( void * ) 0 ) ;
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res [ " result " ] = true ;
scode = 200 ;
break ;
}
}
} // else 404
_node - > freeQueryResult ( ( void * ) nws ) ;
} else scode = 500 ;
} else {
if ( _controller )
scode = _controller - > handleControlPlaneHttpDELETE ( std : : vector < std : : string > ( ps . begin ( ) + 1 , ps . end ( ) ) , urlArgs , headers , body , responseBody , responseContentType ) ;
else scode = 404 ;
}
} else scode = 401 ; // isAuth = false
} else {
scode = 400 ;
}
if ( responseBody . length ( ) = = 0 ) {
if ( ( res . is_object ( ) ) | | ( res . is_array ( ) ) )
responseBody = OSUtils : : jsonDump ( res ) ;
else responseBody = " {} " ;
responseContentType = " application/json " ;
}
// Wrap result in jsonp function call if the user included a jsonp= url argument.
// Also double-check isAuth since forbidding this without auth feels safer.
std : : map < std : : string , std : : string > : : const_iterator jsonp ( urlArgs . find ( " jsonp " ) ) ;
if ( ( isAuth ) & & ( jsonp ! = urlArgs . end ( ) ) & & ( responseContentType = = " application/json " ) ) {
if ( responseBody . length ( ) > 0 )
responseBody = jsonp - > second + " ( " + responseBody + " ); " ;
else responseBody = jsonp - > second + " (null); " ;
responseContentType = " application/javascript " ;
}
return scode ;
2015-05-22 21:52:23 +00:00
}
2016-11-22 22:23:13 +00:00
// Must be called after _localConfig is read or modified
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void applyLocalConfig ( )
2015-04-10 01:14:27 +00:00
{
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Mutex : : Lock _l ( _localConfig_m ) ;
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json lc ( _localConfig ) ;
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_v4Hints . clear ( ) ;
_v6Hints . clear ( ) ;
_v4Blacklists . clear ( ) ;
_v6Blacklists . clear ( ) ;
2017-03-11 06:02:08 +00:00
json & virt = lc [ " virtual " ] ;
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if ( virt . is_object ( ) ) {
for ( json : : iterator v ( virt . begin ( ) ) ; v ! = virt . end ( ) ; + + v ) {
const std : : string nstr = v . key ( ) ;
if ( ( nstr . length ( ) = = ZT_ADDRESS_LENGTH_HEX ) & & ( v . value ( ) . is_object ( ) ) ) {
2017-02-04 08:23:31 +00:00
const Address ztaddr ( Utils : : hexStrToU64 ( nstr . c_str ( ) ) ) ;
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if ( ztaddr ) {
const uint64_t ztaddr2 = ztaddr . toInt ( ) ;
std : : vector < InetAddress > & v4h = _v4Hints [ ztaddr2 ] ;
std : : vector < InetAddress > & v6h = _v6Hints [ ztaddr2 ] ;
std : : vector < InetAddress > & v4b = _v4Blacklists [ ztaddr2 ] ;
std : : vector < InetAddress > & v6b = _v6Blacklists [ ztaddr2 ] ;
json & tryAddrs = v . value ( ) [ " try " ] ;
if ( tryAddrs . is_array ( ) ) {
for ( unsigned long i = 0 ; i < tryAddrs . size ( ) ; + + i ) {
2017-07-06 23:11:11 +00:00
const InetAddress ip ( OSUtils : : jsonString ( tryAddrs [ i ] , " " ) . c_str ( ) ) ;
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if ( ip . ss_family = = AF_INET )
v4h . push_back ( ip ) ;
else if ( ip . ss_family = = AF_INET6 )
v6h . push_back ( ip ) ;
}
}
json & blAddrs = v . value ( ) [ " blacklist " ] ;
if ( blAddrs . is_array ( ) ) {
for ( unsigned long i = 0 ; i < blAddrs . size ( ) ; + + i ) {
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const InetAddress ip ( OSUtils : : jsonString ( blAddrs [ i ] , " " ) . c_str ( ) ) ;
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if ( ip . ss_family = = AF_INET )
v4b . push_back ( ip ) ;
else if ( ip . ss_family = = AF_INET6 )
v6b . push_back ( ip ) ;
}
}
2015-04-10 01:14:27 +00:00
2016-11-22 18:54:58 +00:00
if ( v4h . empty ( ) ) _v4Hints . erase ( ztaddr2 ) ;
if ( v6h . empty ( ) ) _v6Hints . erase ( ztaddr2 ) ;
if ( v4b . empty ( ) ) _v4Blacklists . erase ( ztaddr2 ) ;
if ( v6b . empty ( ) ) _v6Blacklists . erase ( ztaddr2 ) ;
}
}
}
}
2016-06-21 21:58:30 +00:00
2016-11-22 18:54:58 +00:00
_globalV4Blacklist . clear ( ) ;
_globalV6Blacklist . clear ( ) ;
2017-03-11 06:02:08 +00:00
json & physical = lc [ " physical " ] ;
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if ( physical . is_object ( ) ) {
for ( json : : iterator phy ( physical . begin ( ) ) ; phy ! = physical . end ( ) ; + + phy ) {
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const InetAddress net ( OSUtils : : jsonString ( phy . key ( ) , " " ) . c_str ( ) ) ;
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if ( ( net ) & & ( net . netmaskBits ( ) > 0 ) ) {
if ( phy . value ( ) . is_object ( ) ) {
2017-01-10 21:51:10 +00:00
if ( OSUtils : : jsonBool ( phy . value ( ) [ " blacklist " ] , false ) ) {
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if ( net . ss_family = = AF_INET )
_globalV4Blacklist . push_back ( net ) ;
else if ( net . ss_family = = AF_INET6 )
_globalV6Blacklist . push_back ( net ) ;
}
}
}
}
}
2016-06-21 23:52:49 +00:00
2016-12-13 00:25:41 +00:00
_allowManagementFrom . clear ( ) ;
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_interfacePrefixBlacklist . clear ( ) ;
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2017-03-11 06:02:08 +00:00
json & settings = lc [ " settings " ] ;
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if ( ! _node - > bondController ( ) - > inUse ( ) ) {
// defaultBondingPolicy
std : : string defaultBondingPolicyStr ( OSUtils : : jsonString ( settings [ " defaultBondingPolicy " ] , " " ) ) ;
int defaultBondingPolicy = _node - > bondController ( ) - > getPolicyCodeByStr ( defaultBondingPolicyStr ) ;
_node - > bondController ( ) - > setBondingLayerDefaultPolicy ( defaultBondingPolicy ) ;
_node - > bondController ( ) - > setBondingLayerDefaultPolicyStr ( defaultBondingPolicyStr ) ; // Used if custom policy
// Custom Policies
json & customBondingPolicies = settings [ " policies " ] ;
for ( json : : iterator policyItr = customBondingPolicies . begin ( ) ; policyItr ! = customBondingPolicies . end ( ) ; + + policyItr ) {
// Custom Policy
std : : string customPolicyStr ( policyItr . key ( ) ) ;
json & customPolicy = policyItr . value ( ) ;
std : : string basePolicyStr ( OSUtils : : jsonString ( customPolicy [ " basePolicy " ] , " " ) ) ;
2020-11-23 17:59:28 +00:00
if ( basePolicyStr . empty ( ) ) {
fprintf ( stderr , " error: no base policy was specified for custom policy (%s) \n " , customPolicyStr . c_str ( ) ) ;
}
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int basePolicyCode = _node - > bondController ( ) - > getPolicyCodeByStr ( basePolicyStr ) ;
if ( basePolicyCode = = ZT_BOND_POLICY_NONE ) {
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fprintf ( stderr , " error: custom policy (%s) is invalid, unknown base policy (%s). \n " ,
customPolicyStr . c_str ( ) , basePolicyStr . c_str ( ) ) ;
continue ;
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} if ( _node - > bondController ( ) - > getPolicyCodeByStr ( customPolicyStr ) ! = ZT_BOND_POLICY_NONE ) {
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fprintf ( stderr , " error: custom policy (%s) will be ignored, cannot use standard policy names for custom policies. \n " ,
customPolicyStr . c_str ( ) ) ;
continue ;
}
// New bond, used as a copy template for new instances
2020-05-27 00:57:37 +00:00
SharedPtr < Bond > newTemplateBond = new Bond ( NULL , basePolicyStr , customPolicyStr , SharedPtr < Peer > ( ) ) ;
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// Acceptable ranges
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newTemplateBond - > setPolicy ( basePolicyCode ) ;
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newTemplateBond - > setMaxAcceptableLatency ( OSUtils : : jsonInt ( customPolicy [ " maxAcceptableLatency " ] , - 1 ) ) ;
newTemplateBond - > setMaxAcceptableMeanLatency ( OSUtils : : jsonInt ( customPolicy [ " maxAcceptableMeanLatency " ] , - 1 ) ) ;
newTemplateBond - > setMaxAcceptablePacketDelayVariance ( OSUtils : : jsonInt ( customPolicy [ " maxAcceptablePacketDelayVariance " ] , - 1 ) ) ;
newTemplateBond - > setMaxAcceptablePacketLossRatio ( ( float ) OSUtils : : jsonDouble ( customPolicy [ " maxAcceptablePacketLossRatio " ] , - 1 ) ) ;
newTemplateBond - > setMaxAcceptablePacketErrorRatio ( ( float ) OSUtils : : jsonDouble ( customPolicy [ " maxAcceptablePacketErrorRatio " ] , - 1 ) ) ;
newTemplateBond - > setMinAcceptableAllocation ( ( float ) OSUtils : : jsonDouble ( customPolicy [ " minAcceptableAllocation " ] , 0 ) ) ;
// Quality weights
json & qualityWeights = customPolicy [ " qualityWeights " ] ;
if ( qualityWeights . size ( ) = = ZT_QOS_WEIGHT_SIZE ) { // TODO: Generalize this
float weights [ ZT_QOS_WEIGHT_SIZE ] ;
weights [ ZT_QOS_LAT_IDX ] = ( float ) OSUtils : : jsonDouble ( qualityWeights [ " lat " ] , 0.0 ) ;
weights [ ZT_QOS_LTM_IDX ] = ( float ) OSUtils : : jsonDouble ( qualityWeights [ " ltm " ] , 0.0 ) ;
weights [ ZT_QOS_PDV_IDX ] = ( float ) OSUtils : : jsonDouble ( qualityWeights [ " pdv " ] , 0.0 ) ;
weights [ ZT_QOS_PLR_IDX ] = ( float ) OSUtils : : jsonDouble ( qualityWeights [ " plr " ] , 0.0 ) ;
weights [ ZT_QOS_PER_IDX ] = ( float ) OSUtils : : jsonDouble ( qualityWeights [ " per " ] , 0.0 ) ;
weights [ ZT_QOS_THR_IDX ] = ( float ) OSUtils : : jsonDouble ( qualityWeights [ " thr " ] , 0.0 ) ;
weights [ ZT_QOS_THM_IDX ] = ( float ) OSUtils : : jsonDouble ( qualityWeights [ " thm " ] , 0.0 ) ;
weights [ ZT_QOS_THV_IDX ] = ( float ) OSUtils : : jsonDouble ( qualityWeights [ " thv " ] , 0.0 ) ;
newTemplateBond - > setUserQualityWeights ( weights , ZT_QOS_WEIGHT_SIZE ) ;
}
// Bond-specific properties
newTemplateBond - > setUpDelay ( OSUtils : : jsonInt ( customPolicy [ " upDelay " ] , - 1 ) ) ;
newTemplateBond - > setDownDelay ( OSUtils : : jsonInt ( customPolicy [ " downDelay " ] , - 1 ) ) ;
2020-06-16 19:30:21 +00:00
newTemplateBond - > setFlowRebalanceStrategy ( OSUtils : : jsonInt ( customPolicy [ " flowRebalanceStrategy " ] , ( uint64_t ) 0 ) ) ;
2021-12-14 19:49:43 +00:00
newTemplateBond - > setFailoverInterval ( OSUtils : : jsonInt ( customPolicy [ " failoverInterval " ] , ZT_BOND_FAILOVER_DEFAULT_INTERVAL ) ) ;
2020-06-17 21:54:13 +00:00
newTemplateBond - > setPacketsPerLink ( OSUtils : : jsonInt ( customPolicy [ " packetsPerLink " ] , - 1 ) ) ;
// Policy-Specific link set
json & links = customPolicy [ " links " ] ;
for ( json : : iterator linkItr = links . begin ( ) ; linkItr ! = links . end ( ) ; + + linkItr ) {
std : : string linkNameStr ( linkItr . key ( ) ) ;
json & link = linkItr . value ( ) ;
bool enabled = OSUtils : : jsonInt ( link [ " enabled " ] , true ) ;
uint32_t speed = OSUtils : : jsonInt ( link [ " speed " ] , 0 ) ;
float alloc = ( float ) OSUtils : : jsonDouble ( link [ " alloc " ] , 0 ) ;
2020-05-12 08:35:48 +00:00
if ( speed & & alloc ) {
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fprintf ( stderr , " error: cannot specify both speed (%d) and alloc (%f) for link (%s), pick one, link disabled. \n " ,
speed , alloc , linkNameStr . c_str ( ) ) ;
2020-05-12 08:35:48 +00:00
enabled = false ;
}
2020-06-17 21:54:13 +00:00
uint8_t ipvPref = OSUtils : : jsonInt ( link [ " ipvPref " ] , 0 ) ;
std : : string failoverToStr ( OSUtils : : jsonString ( link [ " failoverTo " ] , " " ) ) ;
2020-05-12 08:35:48 +00:00
// Mode
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std : : string linkModeStr ( OSUtils : : jsonString ( link [ " mode " ] , " spare " ) ) ;
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uint8_t linkMode = ZT_BOND_SLAVE_MODE_SPARE ;
if ( linkModeStr = = " primary " ) { linkMode = ZT_BOND_SLAVE_MODE_PRIMARY ; }
if ( linkModeStr = = " spare " ) { linkMode = ZT_BOND_SLAVE_MODE_SPARE ; }
2020-05-12 08:35:48 +00:00
// ipvPref
if ( ( ipvPref ! = 0 ) & & ( ipvPref ! = 4 ) & & ( ipvPref ! = 6 ) & & ( ipvPref ! = 46 ) & & ( ipvPref ! = 64 ) ) {
2020-06-17 21:54:13 +00:00
fprintf ( stderr , " error: invalid ipvPref value (%d), link disabled. \n " , ipvPref ) ;
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enabled = false ;
}
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if ( linkMode = = ZT_BOND_SLAVE_MODE_SPARE & & failoverToStr . length ( ) ) {
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fprintf ( stderr , " error: cannot specify failover links for spares, link disabled. \n " ) ;
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failoverToStr = " " ;
enabled = false ;
}
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_node - > bondController ( ) - > addCustomLink ( customPolicyStr , new Link ( linkNameStr , ipvPref , speed , enabled , linkMode , failoverToStr , alloc ) ) ;
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}
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std : : string linkSelectMethodStr ( OSUtils : : jsonString ( customPolicy [ " activeReselect " ] , " optimize " ) ) ;
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if ( linkSelectMethodStr = = " always " ) {
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newTemplateBond - > setLinkSelectMethod ( ZT_BOND_RESELECTION_POLICY_ALWAYS ) ;
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}
if ( linkSelectMethodStr = = " better " ) {
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newTemplateBond - > setLinkSelectMethod ( ZT_BOND_RESELECTION_POLICY_BETTER ) ;
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}
if ( linkSelectMethodStr = = " failure " ) {
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newTemplateBond - > setLinkSelectMethod ( ZT_BOND_RESELECTION_POLICY_FAILURE ) ;
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}
if ( linkSelectMethodStr = = " optimize " ) {
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newTemplateBond - > setLinkSelectMethod ( ZT_BOND_RESELECTION_POLICY_OPTIMIZE ) ;
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}
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if ( newTemplateBond - > getLinkSelectMethod ( ) < 0 | | newTemplateBond - > getLinkSelectMethod ( ) > 3 ) {
fprintf ( stderr , " warning: invalid value (%s) for linkSelectMethod, assuming mode: always \n " , linkSelectMethodStr . c_str ( ) ) ;
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}
/*
newBond - > setPolicy ( _node - > bondController ( ) - > getPolicyCodeByStr ( basePolicyStr ) ) ;
newBond - > setFlowHashing ( ( bool ) OSUtils : : jsonInt ( userSpecifiedBondingPolicies [ i ] [ " allowFlowHashing " ] , ( bool ) allowFlowHashing ) ) ;
newBond - > setBondMonitorInterval ( ( unsigned int ) OSUtils : : jsonInt ( userSpecifiedBondingPolicies [ i ] [ " monitorInterval " ] , ( uint64_t ) 0 ) ) ;
newBond - > setAllowPathNegotiation ( ( bool ) OSUtils : : jsonInt ( userSpecifiedBondingPolicies [ i ] [ " allowPathNegotiation " ] , ( bool ) false ) ) ;
*/
if ( ! _node - > bondController ( ) - > addCustomPolicy ( newTemplateBond ) ) {
fprintf ( stderr , " error: a custom policy of this name (%s) already exists. \n " , customPolicyStr . c_str ( ) ) ;
}
}
// Peer-specific bonding
json & peerSpecificBonds = settings [ " peerSpecificBonds " ] ;
for ( json : : iterator peerItr = peerSpecificBonds . begin ( ) ; peerItr ! = peerSpecificBonds . end ( ) ; + + peerItr ) {
_node - > bondController ( ) - > assignBondingPolicyToPeer ( std : : stoull ( peerItr . key ( ) , 0 , 16 ) , peerItr . value ( ) ) ;
}
// Check settings
if ( defaultBondingPolicyStr . length ( ) & & ! defaultBondingPolicy & & ! _node - > bondController ( ) - > inUse ( ) ) {
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fprintf ( stderr , " error: unknown policy (%s) specified by defaultBondingPolicy, bond disabled. \n " , defaultBondingPolicyStr . c_str ( ) ) ;
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}
}
// bondingPolicy cannot be used with allowTcpFallbackRelay
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_allowTcpFallbackRelay = OSUtils : : jsonBool ( settings [ " allowTcpFallbackRelay " ] , true ) ;
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# ifdef ZT_TCP_FALLBACK_RELAY
_fallbackRelayAddress = InetAddress ( OSUtils : : jsonString ( " tcpFallbackRelay " , ZT_TCP_FALLBACK_RELAY ) . c_str ( ) ) ;
# endif
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_primaryPort = ( unsigned int ) OSUtils : : jsonInt ( settings [ " primaryPort " ] , ( uint64_t ) _primaryPort ) & 0xffff ;
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_allowSecondaryPort = OSUtils : : jsonBool ( settings [ " allowSecondaryPort " ] , true ) ;
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_secondaryPort = ( unsigned int ) OSUtils : : jsonInt ( settings [ " secondaryPort " ] , 0 ) ;
_tertiaryPort = ( unsigned int ) OSUtils : : jsonInt ( settings [ " tertiaryPort " ] , 0 ) ;
if ( _secondaryPort ! = 0 | | _tertiaryPort ! = 0 ) {
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fprintf ( stderr , " WARNING: using manually-specified secondary and/or tertiary ports. This can cause NAT issues. " ZT_EOL_S ) ;
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}
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_portMappingEnabled = OSUtils : : jsonBool ( settings [ " portMappingEnabled " ] , true ) ;
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# ifndef ZT_SDK
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const std : : string up ( OSUtils : : jsonString ( settings [ " softwareUpdate " ] , ZT_SOFTWARE_UPDATE_DEFAULT ) ) ;
const bool udist = OSUtils : : jsonBool ( settings [ " softwareUpdateDist " ] , false ) ;
if ( ( ( up = = " apply " ) | | ( up = = " download " ) ) | | ( udist ) ) {
if ( ! _updater )
_updater = new SoftwareUpdater ( * _node , _homePath ) ;
_updateAutoApply = ( up = = " apply " ) ;
_updater - > setUpdateDistribution ( udist ) ;
_updater - > setChannel ( OSUtils : : jsonString ( settings [ " softwareUpdateChannel " ] , ZT_SOFTWARE_UPDATE_DEFAULT_CHANNEL ) ) ;
} else {
delete _updater ;
_updater = ( SoftwareUpdater * ) 0 ;
_updateAutoApply = false ;
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}
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# endif
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json & ignoreIfs = settings [ " interfacePrefixBlacklist " ] ;
if ( ignoreIfs . is_array ( ) ) {
for ( unsigned long i = 0 ; i < ignoreIfs . size ( ) ; + + i ) {
const std : : string tmp ( OSUtils : : jsonString ( ignoreIfs [ i ] , " " ) ) ;
if ( tmp . length ( ) > 0 )
_interfacePrefixBlacklist . push_back ( tmp ) ;
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}
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}
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json & amf = settings [ " allowManagementFrom " ] ;
if ( amf . is_array ( ) ) {
for ( unsigned long i = 0 ; i < amf . size ( ) ; + + i ) {
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const InetAddress nw ( OSUtils : : jsonString ( amf [ i ] , " " ) . c_str ( ) ) ;
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if ( nw )
_allowManagementFrom . push_back ( nw ) ;
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}
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}
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}
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# if ZT_VAULT_SUPPORT
json & vault = settings [ " vault " ] ;
if ( vault . is_object ( ) ) {
const std : : string url ( OSUtils : : jsonString ( vault [ " vaultURL " ] , " " ) . c_str ( ) ) ;
if ( ! url . empty ( ) ) {
_vaultURL = url ;
}
const std : : string token ( OSUtils : : jsonString ( vault [ " vaultToken " ] , " " ) . c_str ( ) ) ;
if ( ! token . empty ( ) ) {
_vaultToken = token ;
}
const std : : string path ( OSUtils : : jsonString ( vault [ " vaultPath " ] , " " ) . c_str ( ) ) ;
if ( ! path . empty ( ) ) {
_vaultPath = path ;
}
}
// also check environment variables for values. Environment variables
// will override local.conf variables
const std : : string envURL ( getenv ( " VAULT_ADDR " ) ) ;
if ( ! envURL . empty ( ) ) {
_vaultURL = envURL ;
}
const std : : string envToken ( getenv ( " VAULT_TOKEN " ) ) ;
if ( ! envToken . empty ( ) ) {
_vaultToken = envToken ;
}
const std : : string envPath ( getenv ( " VAULT_PATH " ) ) ;
if ( ! envPath . empty ( ) ) {
_vaultPath = envPath ;
}
if ( ! _vaultURL . empty ( ) & & ! _vaultToken . empty ( ) ) {
_vaultEnabled = true ;
}
# endif
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// Checks if a managed IP or route target is allowed
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bool checkIfManagedIsAllowed ( const NetworkState & n , const InetAddress & target )
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{
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if ( ! n . allowManaged ( ) )
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return false ;
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if ( ! n . allowManagedWhitelist ( ) . empty ( ) ) {
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bool allowed = false ;
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for ( InetAddress addr : n . allowManagedWhitelist ( ) ) {
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if ( addr . containsAddress ( target ) & & addr . netmaskBits ( ) < = target . netmaskBits ( ) ) {
allowed = true ;
break ;
}
}
if ( ! allowed ) return false ;
}
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if ( target . isDefaultRoute ( ) )
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return n . allowDefault ( ) ;
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switch ( target . ipScope ( ) ) {
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case InetAddress : : IP_SCOPE_NONE :
case InetAddress : : IP_SCOPE_MULTICAST :
case InetAddress : : IP_SCOPE_LOOPBACK :
case InetAddress : : IP_SCOPE_LINK_LOCAL :
return false ;
case InetAddress : : IP_SCOPE_GLOBAL :
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return n . allowGlobal ( ) ;
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default :
return true ;
}
}
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// Match only an IP from a vector of IPs -- used in syncManagedStuff()
2020-11-13 21:02:59 +00:00
inline bool matchIpOnly ( const std : : set < InetAddress > & ips , const InetAddress & ip ) const
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{
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for ( std : : set < InetAddress > : : const_iterator i ( ips . begin ( ) ) ; i ! = ips . end ( ) ; + + i ) {
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if ( i - > ipsEqual ( ip ) )
return true ;
}
return false ;
}
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// Apply or update managed IPs for a configured network (be sure n.tap exists)
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void syncManagedStuff ( NetworkState & n , bool syncIps , bool syncRoutes , bool syncDns )
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{
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char ipbuf [ 64 ] ;
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// assumes _nets_m is locked
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if ( syncIps ) {
std : : vector < InetAddress > newManagedIps ;
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newManagedIps . reserve ( n . config ( ) . assignedAddressCount ) ;
for ( unsigned int i = 0 ; i < n . config ( ) . assignedAddressCount ; + + i ) {
const InetAddress * ii = reinterpret_cast < const InetAddress * > ( & ( n . config ( ) . assignedAddresses [ i ] ) ) ;
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if ( checkIfManagedIsAllowed ( n , * ii ) )
newManagedIps . push_back ( * ii ) ;
}
std : : sort ( newManagedIps . begin ( ) , newManagedIps . end ( ) ) ;
newManagedIps . erase ( std : : unique ( newManagedIps . begin ( ) , newManagedIps . end ( ) ) , newManagedIps . end ( ) ) ;
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for ( std : : vector < InetAddress > : : iterator ip ( n . managedIps ( ) . begin ( ) ) ; ip ! = n . managedIps ( ) . end ( ) ; + + ip ) {
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if ( std : : find ( newManagedIps . begin ( ) , newManagedIps . end ( ) , * ip ) = = newManagedIps . end ( ) ) {
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if ( ! n . tap ( ) - > removeIp ( * ip ) )
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fprintf ( stderr , " ERROR: unable to remove ip address %s " ZT_EOL_S , ip - > toString ( ipbuf ) ) ;
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}
}
2022-04-01 05:01:50 +00:00
2016-07-12 16:43:12 +00:00
for ( std : : vector < InetAddress > : : iterator ip ( newManagedIps . begin ( ) ) ; ip ! = newManagedIps . end ( ) ; + + ip ) {
2021-11-18 20:39:55 +00:00
if ( std : : find ( n . managedIps ( ) . begin ( ) , n . managedIps ( ) . end ( ) , * ip ) = = n . managedIps ( ) . end ( ) ) {
if ( ! n . tap ( ) - > addIp ( * ip ) )
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fprintf ( stderr , " ERROR: unable to add ip address %s " ZT_EOL_S , ip - > toString ( ipbuf ) ) ;
2018-05-07 19:51:39 +00:00
}
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}
2021-11-05 15:02:10 +00:00
# ifdef __APPLE__
2021-12-15 22:36:50 +00:00
if ( ! MacDNSHelper : : addIps ( n . config ( ) . nwid , n . config ( ) . mac , n . tap ( ) - > deviceName ( ) . c_str ( ) , newManagedIps ) )
2021-11-05 15:02:10 +00:00
fprintf ( stderr , " ERROR: unable to add v6 addresses to system configuration " ZT_EOL_S ) ;
2017-02-22 01:55:00 +00:00
# endif
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n . setManagedIps ( newManagedIps ) ;
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}
if ( syncRoutes ) {
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// Get tap device name (use LUID in hex on Windows) and IP addresses.
2018-02-08 22:15:32 +00:00
# if defined(__WINDOWS__) && !defined(ZT_SDK)
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char tapdevbuf [ 64 ] ;
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OSUtils : : ztsnprintf ( tapdevbuf , sizeof ( tapdevbuf ) , " %.16llx " , ( unsigned long long ) ( ( WindowsEthernetTap * ) ( n . tap ( ) . get ( ) ) ) - > luid ( ) . Value ) ;
2020-11-13 21:02:59 +00:00
std : : string tapdev ( tapdevbuf ) ;
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# else
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std : : string tapdev ( n . tap ( ) - > deviceName ( ) ) ;
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# endif
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2021-11-18 20:39:55 +00:00
std : : vector < InetAddress > tapIps ( n . tap ( ) - > ips ( ) ) ;
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std : : set < InetAddress > myIps ( tapIps . begin ( ) , tapIps . end ( ) ) ;
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for ( unsigned int i = 0 ; i < n . config ( ) . assignedAddressCount ; + + i )
myIps . insert ( InetAddress ( n . config ( ) . assignedAddresses [ i ] ) ) ;
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std : : set < InetAddress > haveRouteTargets ;
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for ( unsigned int i = 0 ; i < n . config ( ) . routeCount ; + + i ) {
const InetAddress * const target = reinterpret_cast < const InetAddress * > ( & ( n . config ( ) . routes [ i ] . target ) ) ;
const InetAddress * const via = reinterpret_cast < const InetAddress * > ( & ( n . config ( ) . routes [ i ] . via ) ) ;
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2020-11-13 23:16:14 +00:00
// Make sure we are allowed to set this managed route, and that 'via' is not our IP. The latter
// avoids setting routes via the router on the router.
2020-11-06 16:01:45 +00:00
if ( ( ! checkIfManagedIsAllowed ( n , * target ) ) | | ( ( via - > ss_family = = target - > ss_family ) & & ( matchIpOnly ( myIps , * via ) ) ) )
continue ;
// Find an IP on the interface that can be a source IP, abort if no IPs assigned.
2020-11-13 23:16:14 +00:00
const InetAddress * src = nullptr ;
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unsigned int mostMatchingPrefixBits = 0 ;
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for ( std : : set < InetAddress > : : const_iterator i ( myIps . begin ( ) ) ; i ! = myIps . end ( ) ; + + i ) {
2020-11-06 16:01:45 +00:00
const unsigned int matchingPrefixBits = i - > matchingPrefixBits ( * target ) ;
Don't use v6 source addresses for v4 routes
and vice versa.
For issue #1104
With some printf debugging, I was seeing:
here, src fe80::3c7a:2dff:fe0c:21ed, target 10.147.20.0, matchingPrefixBits 0, mostMatchingPrefixBits 0
here, src fd8b:d512:4fd6:255:3c99:932f:2fda:6eff, target 10.147.20.0, matchingPrefixBits 0, mostMatchingPrefixBits 0
and (matchingPrefixBits >= mostMatchingPrefixBits) would be true
Then on mac, somewhere downstream from there, the default route would
get messed up:
default via 92:29:f1:6f:2f:76 dev en0
2021-08-03 22:58:58 +00:00
if ( matchingPrefixBits > = mostMatchingPrefixBits & & ( ( target - > isV4 ( ) & & i - > isV4 ( ) ) | | ( target - > isV6 ( ) & & i - > isV6 ( ) ) ) ) {
2020-11-06 16:01:45 +00:00
mostMatchingPrefixBits = matchingPrefixBits ;
src = & ( * i ) ;
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}
}
if ( ! src )
continue ;
2020-11-13 23:16:14 +00:00
// Ignore routes implied by local managed IPs since adding the IP adds the route.
// Apple on the other hand seems to need this at least on some versions.
# ifndef __APPLE__
bool haveRoute = false ;
2021-11-30 23:22:31 +00:00
for ( std : : vector < InetAddress > : : iterator ip ( n . managedIps ( ) . begin ( ) ) ; ip ! = n . managedIps ( ) . end ( ) ; + + ip ) {
2020-11-13 23:16:14 +00:00
if ( ( target - > netmaskBits ( ) = = ip - > netmaskBits ( ) ) & & ( target - > containsAddress ( * ip ) ) ) {
haveRoute = true ;
break ;
}
}
if ( haveRoute )
continue ;
# endif
2020-11-03 00:02:07 +00:00
haveRouteTargets . insert ( * target ) ;
# ifndef ZT_SDK
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SharedPtr < ManagedRoute > & mr = n . managedRoutes ( ) [ * target ] ;
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if ( ! mr )
mr . set ( new ManagedRoute ( * target , * via , * src , tapdev . c_str ( ) ) ) ;
# endif
}
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for ( std : : map < InetAddress , SharedPtr < ManagedRoute > > : : iterator r ( n . managedRoutes ( ) . begin ( ) ) ; r ! = n . managedRoutes ( ) . end ( ) ; ) {
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if ( haveRouteTargets . find ( r - > first ) = = haveRouteTargets . end ( ) )
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n . managedRoutes ( ) . erase ( r + + ) ;
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else + + r ;
}
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// Sync device-local managed routes first, then indirect results. That way
// we don't get destination unreachable for routes that are via things
// that do not yet have routes in the system.
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for ( std : : map < InetAddress , SharedPtr < ManagedRoute > > : : iterator r ( n . managedRoutes ( ) . begin ( ) ) ; r ! = n . managedRoutes ( ) . end ( ) ; + + r ) {
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if ( ! r - > second - > via ( ) )
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r - > second - > sync ( ) ;
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}
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for ( std : : map < InetAddress , SharedPtr < ManagedRoute > > : : iterator r ( n . managedRoutes ( ) . begin ( ) ) ; r ! = n . managedRoutes ( ) . end ( ) ; + + r ) {
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if ( r - > second - > via ( ) )
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r - > second - > sync ( ) ;
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}
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}
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if ( syncDns ) {
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if ( n . allowDNS ( ) ) {
if ( strlen ( n . config ( ) . dns . domain ) ! = 0 ) {
2020-09-10 22:59:18 +00:00
std : : vector < InetAddress > servers ;
for ( int j = 0 ; j < ZT_MAX_DNS_SERVERS ; + + j ) {
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InetAddress a ( n . config ( ) . dns . server_addr [ j ] ) ;
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if ( a . isV4 ( ) | | a . isV6 ( ) ) {
servers . push_back ( a ) ;
}
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}
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n . tap ( ) - > setDns ( n . config ( ) . dns . domain , servers ) ;
2020-07-31 18:42:03 +00:00
}
2020-09-10 22:59:18 +00:00
} else {
# ifdef __APPLE__
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MacDNSHelper : : removeDNS ( n . config ( ) . nwid ) ;
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# elif defined(__WINDOWS__)
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WinDNSHelper : : removeDNS ( n . config ( ) . nwid ) ;
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# endif
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}
2020-09-10 22:59:18 +00:00
2020-07-31 18:42:03 +00:00
}
2016-06-17 20:14:48 +00:00
}
2017-03-07 21:53:11 +00:00
// =========================================================================
// Handlers for Node and Phy<> callbacks
// =========================================================================
2016-11-22 18:54:58 +00:00
2016-04-05 22:44:08 +00:00
inline void phyOnDatagram ( PhySocket * sock , void * * uptr , const struct sockaddr * localAddr , const struct sockaddr * from , void * data , unsigned long len )
2015-04-10 01:14:27 +00:00
{
2018-11-13 18:19:51 +00:00
const uint64_t now = OSUtils : : now ( ) ;
2015-05-22 21:52:23 +00:00
if ( ( len > = 16 ) & & ( reinterpret_cast < const InetAddress * > ( from ) - > ipScope ( ) = = InetAddress : : IP_SCOPE_GLOBAL ) )
2018-11-13 18:19:51 +00:00
_lastDirectReceiveFromGlobal = now ;
2019-06-19 17:19:59 +00:00
const ZT_ResultCode rc = _node - > processWirePacket ( nullptr , now , reinterpret_cast < int64_t > ( sock ) , reinterpret_cast < const struct sockaddr_storage * > ( from ) , data , len , & _nextBackgroundTaskDeadline ) ;
if ( ZT_ResultCode_isFatal ( rc ) ) {
char tmp [ 256 ] ;
OSUtils : : ztsnprintf ( tmp , sizeof ( tmp ) , " fatal error code from processWirePacket: %d " , ( int ) rc ) ;
Mutex : : Lock _l ( _termReason_m ) ;
_termReason = ONE_UNRECOVERABLE_ERROR ;
_fatalErrorMessage = tmp ;
this - > terminate ( ) ;
2018-11-12 06:35:15 +00:00
}
2015-04-10 01:14:27 +00:00
}
2015-04-11 00:07:06 +00:00
inline void phyOnTcpConnect ( PhySocket * sock , void * * uptr , bool success )
2015-04-10 01:14:27 +00:00
{
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if ( ! success ) {
phyOnTcpClose ( sock , uptr ) ;
2015-04-28 19:43:10 +00:00
return ;
2017-06-05 19:15:28 +00:00
}
2015-04-28 19:43:10 +00:00
2017-06-05 19:15:28 +00:00
TcpConnection * const tc = reinterpret_cast < TcpConnection * > ( * uptr ) ;
if ( ! tc ) { // sanity check
_phy . close ( sock , true ) ;
return ;
}
2015-04-28 19:43:10 +00:00
tc - > sock = sock ;
2017-06-05 19:15:28 +00:00
if ( tc - > type = = TcpConnection : : TCP_TUNNEL_OUTGOING ) {
if ( _tcpFallbackTunnel )
_phy . close ( _tcpFallbackTunnel - > sock ) ;
_tcpFallbackTunnel = tc ;
_phy . streamSend ( sock , ZT_TCP_TUNNEL_HELLO , sizeof ( ZT_TCP_TUNNEL_HELLO ) ) ;
} else {
_phy . close ( sock , true ) ;
}
2015-04-10 01:14:27 +00:00
}
2015-04-11 00:07:06 +00:00
inline void phyOnTcpAccept ( PhySocket * sockL , PhySocket * sockN , void * * uptrL , void * * uptrN , const struct sockaddr * from )
2015-04-10 01:14:27 +00:00
{
2016-11-14 23:29:36 +00:00
if ( ! from ) {
2016-04-05 22:44:08 +00:00
_phy . close ( sockN , false ) ;
return ;
} else {
2019-01-14 19:34:46 +00:00
# ifdef ZT_SDK
// Immediately close new local connections. The intention is to prevent the backplane from being accessed when operating as libzt
if ( ! allowHttpBackplaneManagement & & ( ( InetAddress * ) from ) - > ipScope ( ) = = InetAddress : : IP_SCOPE_LOOPBACK ) {
_phy . close ( sockN , false ) ;
return ;
}
# endif
2016-04-05 22:44:08 +00:00
TcpConnection * tc = new TcpConnection ( ) ;
2017-06-05 19:15:28 +00:00
{
Mutex : : Lock _l ( _tcpConnections_m ) ;
_tcpConnections . push_back ( tc ) ;
}
tc - > type = TcpConnection : : TCP_UNCATEGORIZED_INCOMING ;
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tc - > parent = this ;
tc - > sock = sockN ;
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tc - > remoteAddr = from ;
2017-06-05 19:15:28 +00:00
tc - > lastReceive = OSUtils : : now ( ) ;
2016-04-05 22:44:08 +00:00
http_parser_init ( & ( tc - > parser ) , HTTP_REQUEST ) ;
tc - > parser . data = ( void * ) tc ;
tc - > messageSize = 0 ;
2017-06-05 19:15:28 +00:00
2016-04-05 22:44:08 +00:00
* uptrN = ( void * ) tc ;
}
2015-04-10 01:14:27 +00:00
}
2017-06-05 19:15:28 +00:00
void phyOnTcpClose ( PhySocket * sock , void * * uptr )
2015-04-10 01:14:27 +00:00
{
2015-05-22 22:46:06 +00:00
TcpConnection * tc = ( TcpConnection * ) * uptr ;
if ( tc ) {
2017-06-05 19:15:28 +00:00
if ( tc = = _tcpFallbackTunnel ) {
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_tcpFallbackTunnel = ( TcpConnection * ) 0 ;
2017-06-05 19:15:28 +00:00
}
{
Mutex : : Lock _l ( _tcpConnections_m ) ;
_tcpConnections . erase ( std : : remove ( _tcpConnections . begin ( ) , _tcpConnections . end ( ) , tc ) , _tcpConnections . end ( ) ) ;
}
2015-05-22 22:46:06 +00:00
delete tc ;
2015-05-22 01:33:52 +00:00
}
2015-04-10 01:14:27 +00:00
}
2017-06-05 19:15:28 +00:00
void phyOnTcpData ( PhySocket * sock , void * * uptr , void * data , unsigned long len )
2015-04-10 01:14:27 +00:00
{
2017-06-05 19:15:28 +00:00
try {
if ( ! len ) return ; // sanity check, should never happen
TcpConnection * tc = reinterpret_cast < TcpConnection * > ( * uptr ) ;
tc - > lastReceive = OSUtils : : now ( ) ;
switch ( tc - > type ) {
case TcpConnection : : TCP_UNCATEGORIZED_INCOMING :
switch ( reinterpret_cast < uint8_t * > ( data ) [ 0 ] ) {
2017-08-24 22:33:24 +00:00
// HTTP: GET, PUT, POST, HEAD, DELETE
2017-06-05 19:15:28 +00:00
case ' G ' :
case ' P ' :
2017-08-24 22:33:24 +00:00
case ' D ' :
2017-06-05 19:15:28 +00:00
case ' H ' : {
2017-06-06 23:11:19 +00:00
// This is only allowed from IPs permitted to access the management
// backplane, which is just 127.0.0.1/::1 unless otherwise configured.
2017-06-05 19:15:28 +00:00
bool allow ;
{
Mutex : : Lock _l ( _localConfig_m ) ;
2020-07-16 16:31:56 +00:00
if ( _allowManagementFrom . empty ( ) ) {
2017-06-06 23:11:19 +00:00
allow = ( tc - > remoteAddr . ipScope ( ) = = InetAddress : : IP_SCOPE_LOOPBACK ) ;
2017-06-05 19:15:28 +00:00
} else {
allow = false ;
for ( std : : vector < InetAddress > : : const_iterator i ( _allowManagementFrom . begin ( ) ) ; i ! = _allowManagementFrom . end ( ) ; + + i ) {
2017-06-06 23:11:19 +00:00
if ( i - > containsAddress ( tc - > remoteAddr ) ) {
2017-06-05 19:15:28 +00:00
allow = true ;
break ;
}
}
}
}
if ( allow ) {
tc - > type = TcpConnection : : TCP_HTTP_INCOMING ;
phyOnTcpData ( sock , uptr , data , len ) ;
} else {
_phy . close ( sock ) ;
}
} break ;
2015-05-21 22:22:41 +00:00
2017-06-05 19:15:28 +00:00
// Drop unknown protocols
default :
_phy . close ( sock ) ;
break ;
}
2015-04-28 19:43:10 +00:00
return ;
2015-05-21 22:22:41 +00:00
2017-06-05 19:15:28 +00:00
case TcpConnection : : TCP_HTTP_INCOMING :
case TcpConnection : : TCP_HTTP_OUTGOING :
http_parser_execute ( & ( tc - > parser ) , & HTTP_PARSER_SETTINGS , ( const char * ) data , len ) ;
if ( ( tc - > parser . upgrade ) | | ( tc - > parser . http_errno ! = HPE_OK ) )
_phy . close ( sock ) ;
2015-04-28 19:43:10 +00:00
return ;
2015-05-21 22:22:41 +00:00
2017-06-05 19:15:28 +00:00
case TcpConnection : : TCP_TUNNEL_OUTGOING :
tc - > readq . append ( ( const char * ) data , len ) ;
while ( tc - > readq . length ( ) > = 5 ) {
const char * data = tc - > readq . data ( ) ;
const unsigned long mlen = ( ( ( ( ( unsigned long ) data [ 3 ] ) & 0xff ) < < 8 ) | ( ( ( unsigned long ) data [ 4 ] ) & 0xff ) ) ;
if ( tc - > readq . length ( ) > = ( mlen + 5 ) ) {
InetAddress from ;
2015-04-28 19:43:10 +00:00
unsigned long plen = mlen ; // payload length, modified if there's an IP header
2017-06-05 19:15:28 +00:00
data + = 5 ; // skip forward past pseudo-TLS junk and mlen
if ( plen = = 4 ) {
// Hello message, which isn't sent by proxy and would be ignored by client
} else if ( plen ) {
// Messages should contain IPv4 or IPv6 source IP address data
switch ( data [ 0 ] ) {
case 4 : // IPv4
if ( plen > = 7 ) {
from . set ( ( const void * ) ( data + 1 ) , 4 , ( ( ( ( unsigned int ) data [ 5 ] ) & 0xff ) < < 8 ) | ( ( ( unsigned int ) data [ 6 ] ) & 0xff ) ) ;
data + = 7 ; // type + 4 byte IP + 2 byte port
plen - = 7 ;
} else {
_phy . close ( sock ) ;
return ;
}
break ;
case 6 : // IPv6
if ( plen > = 19 ) {
from . set ( ( const void * ) ( data + 1 ) , 16 , ( ( ( ( unsigned int ) data [ 17 ] ) & 0xff ) < < 8 ) | ( ( ( unsigned int ) data [ 18 ] ) & 0xff ) ) ;
data + = 19 ; // type + 16 byte IP + 2 byte port
plen - = 19 ;
} else {
_phy . close ( sock ) ;
return ;
}
break ;
case 0 : // none/omitted
+ + data ;
- - plen ;
break ;
default : // invalid address type
2015-04-30 17:47:27 +00:00
_phy . close ( sock ) ;
return ;
2017-06-05 19:15:28 +00:00
}
if ( from ) {
InetAddress fakeTcpLocalInterfaceAddress ( ( uint32_t ) 0xffffffff , 0xffff ) ;
const ZT_ResultCode rc = _node - > processWirePacket (
( void * ) 0 ,
OSUtils : : now ( ) ,
2017-07-06 18:45:22 +00:00
- 1 ,
2017-06-05 19:15:28 +00:00
reinterpret_cast < struct sockaddr_storage * > ( & from ) ,
data ,
plen ,
& _nextBackgroundTaskDeadline ) ;
if ( ZT_ResultCode_isFatal ( rc ) ) {
char tmp [ 256 ] ;
2017-07-06 23:11:11 +00:00
OSUtils : : ztsnprintf ( tmp , sizeof ( tmp ) , " fatal error code from processWirePacket: %d " , ( int ) rc ) ;
2017-06-05 19:15:28 +00:00
Mutex : : Lock _l ( _termReason_m ) ;
_termReason = ONE_UNRECOVERABLE_ERROR ;
_fatalErrorMessage = tmp ;
this - > terminate ( ) ;
2015-04-30 17:47:27 +00:00
_phy . close ( sock ) ;
return ;
2015-04-28 19:43:10 +00:00
}
2015-05-22 01:33:52 +00:00
}
2015-04-28 19:43:10 +00:00
}
2015-05-21 22:22:41 +00:00
2017-06-05 19:15:28 +00:00
if ( tc - > readq . length ( ) > ( mlen + 5 ) )
tc - > readq . erase ( tc - > readq . begin ( ) , tc - > readq . begin ( ) + ( mlen + 5 ) ) ;
else tc - > readq . clear ( ) ;
} else break ;
}
return ;
2015-05-21 22:22:41 +00:00
2017-06-05 19:15:28 +00:00
}
} catch ( . . . ) {
_phy . close ( sock ) ;
2015-04-28 19:43:10 +00:00
}
2015-04-10 01:14:27 +00:00
}
2015-04-11 00:07:06 +00:00
inline void phyOnTcpWritable ( PhySocket * sock , void * * uptr )
2015-04-10 01:14:27 +00:00
{
2015-04-28 19:43:10 +00:00
TcpConnection * tc = reinterpret_cast < TcpConnection * > ( * uptr ) ;
2017-06-05 19:15:28 +00:00
bool closeit = false ;
{
Mutex : : Lock _l ( tc - > writeq_m ) ;
if ( tc - > writeq . length ( ) > 0 ) {
long sent = ( long ) _phy . streamSend ( sock , tc - > writeq . data ( ) , ( unsigned long ) tc - > writeq . length ( ) , true ) ;
if ( sent > 0 ) {
if ( ( unsigned long ) sent > = ( unsigned long ) tc - > writeq . length ( ) ) {
tc - > writeq . clear ( ) ;
_phy . setNotifyWritable ( sock , false ) ;
if ( tc - > type = = TcpConnection : : TCP_HTTP_INCOMING )
closeit = true ; // HTTP keep alive not supported
} else {
tc - > writeq . erase ( tc - > writeq . begin ( ) , tc - > writeq . begin ( ) + sent ) ;
}
2015-05-22 21:52:23 +00:00
}
2017-06-05 19:15:28 +00:00
} else {
_phy . setNotifyWritable ( sock , false ) ;
2015-04-11 02:08:49 +00:00
}
2015-05-22 21:52:23 +00:00
}
2017-06-05 19:15:28 +00:00
if ( closeit )
_phy . close ( sock ) ;
2015-04-10 01:14:27 +00:00
}
2015-12-22 00:15:39 +00:00
inline void phyOnFileDescriptorActivity ( PhySocket * sock , void * * uptr , bool readable , bool writable ) { }
2015-09-02 21:32:01 +00:00
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 ) { }
2018-08-09 18:39:42 +00:00
inline void phyOnUnixWritable ( PhySocket * sock , void * * uptr ) { }
2015-09-02 21:32:01 +00:00
2016-01-12 19:34:22 +00:00
inline int nodeVirtualNetworkConfigFunction ( uint64_t nwid , void * * nuptr , enum ZT_VirtualNetworkConfigOperation op , const ZT_VirtualNetworkConfig * nwc )
2015-04-10 01:14:27 +00:00
{
2016-06-14 17:09:26 +00:00
Mutex : : Lock _l ( _nets_m ) ;
NetworkState & n = _nets [ nwid ] ;
2021-11-29 22:11:29 +00:00
n . setWebPort ( _primaryPort ) ;
2016-06-14 17:09:26 +00:00
2021-11-29 22:11:29 +00:00
switch ( op ) {
2015-09-24 23:21:36 +00:00
case ZT_VIRTUAL_NETWORK_CONFIG_OPERATION_UP :
2021-11-18 20:39:55 +00:00
if ( ! n . tap ( ) ) {
2015-04-15 00:57:51 +00:00
try {
2016-06-14 17:09:26 +00:00
char friendlyName [ 128 ] ;
2017-07-06 23:11:11 +00:00
OSUtils : : ztsnprintf ( friendlyName , sizeof ( friendlyName ) , " ZeroTier One [%.16llx] " , nwid ) ;
2017-03-25 00:00:14 +00:00
2021-11-18 20:39:55 +00:00
n . setTap ( EthernetTap : : newInstance (
2019-08-07 23:20:17 +00:00
nullptr ,
2015-04-15 00:57:51 +00:00
_homePath . c_str ( ) ,
MAC ( nwc - > mac ) ,
nwc - > mtu ,
2015-04-24 22:05:28 +00:00
( unsigned int ) ZT_IF_METRIC ,
2015-04-15 00:57:51 +00:00
nwid ,
friendlyName ,
StapFrameHandler ,
2021-11-18 20:39:55 +00:00
( void * ) this ) ) ;
2016-06-14 17:09:26 +00:00
* nuptr = ( void * ) & n ;
2016-06-21 23:52:49 +00:00
char nlcpath [ 256 ] ;
2017-07-06 23:11:11 +00:00
OSUtils : : ztsnprintf ( nlcpath , sizeof ( nlcpath ) , " %s " ZT_PATH_SEPARATOR_S " networks.d " ZT_PATH_SEPARATOR_S " %.16llx.local.conf " , _homePath . c_str ( ) , nwid ) ;
2016-06-21 23:52:49 +00:00
std : : string nlcbuf ;
if ( OSUtils : : readFile ( nlcpath , nlcbuf ) ) {
Dictionary < 4096 > nc ;
nc . load ( nlcbuf . c_str ( ) ) ;
2017-01-22 22:02:34 +00:00
Buffer < 1024 > allowManaged ;
2021-05-04 02:35:28 +00:00
if ( nc . get ( " allowManaged " , allowManaged ) & & allowManaged . size ( ) > 0 ) {
2017-01-22 22:02:34 +00:00
std : : string addresses ( allowManaged . begin ( ) , allowManaged . size ( ) ) ;
if ( allowManaged . size ( ) < = 5 ) { // untidy parsing for backward compatibility
if ( allowManaged [ 0 ] = = ' 1 ' | | allowManaged [ 0 ] = = ' t ' | | allowManaged [ 0 ] = = ' T ' ) {
2021-11-18 20:39:55 +00:00
n . setAllowManaged ( true ) ;
2017-01-22 22:02:34 +00:00
} else {
2021-11-18 20:39:55 +00:00
n . setAllowManaged ( false ) ;
2017-01-22 22:02:34 +00:00
}
} else {
// this should be a list of IP addresses
2021-11-18 20:39:55 +00:00
n . setAllowManaged ( true ) ;
2017-01-22 22:02:34 +00:00
size_t pos = 0 ;
while ( true ) {
size_t nextPos = addresses . find ( ' , ' , pos ) ;
std : : string address = addresses . substr ( pos , ( nextPos = = std : : string : : npos ? addresses . size ( ) : nextPos ) - pos ) ;
2021-11-18 20:39:55 +00:00
n . addToAllowManagedWhiteList ( InetAddress ( address . c_str ( ) ) ) ;
2017-01-22 22:02:34 +00:00
if ( nextPos = = std : : string : : npos ) break ;
pos = nextPos + 1 ;
}
}
} else {
2021-11-18 20:39:55 +00:00
n . setAllowManaged ( true ) ;
2017-01-22 22:02:34 +00:00
}
2021-11-18 20:39:55 +00:00
n . setAllowGlobal ( nc . getB ( " allowGlobal " , false ) ) ;
n . setAllowDefault ( nc . getB ( " allowDefault " , false ) ) ;
n . setAllowDNS ( nc . getB ( " allowDNS " , false ) ) ;
2016-06-21 23:52:49 +00:00
}
2015-07-31 00:00:57 +00:00
} catch ( std : : exception & exc ) {
# ifdef __WINDOWS__
FILE * tapFailLog = fopen ( ( _homePath + ZT_PATH_SEPARATOR_S " port_error_log.txt " ) . c_str ( ) , " a " ) ;
if ( tapFailLog ) {
2016-08-16 21:07:11 +00:00
fprintf ( tapFailLog , " %.16llx: %s " ZT_EOL_S , ( unsigned long long ) nwid , exc . what ( ) ) ;
2015-07-31 00:00:57 +00:00
fclose ( tapFailLog ) ;
}
# else
2016-08-16 21:07:11 +00:00
fprintf ( stderr , " ERROR: unable to configure virtual network port: %s " ZT_EOL_S , exc . what ( ) ) ;
2015-07-31 00:00:57 +00:00
# endif
2016-06-14 17:09:26 +00:00
_nets . erase ( nwid ) ;
2015-07-31 00:00:57 +00:00
return - 999 ;
2015-04-15 00:57:51 +00:00
} catch ( . . . ) {
2015-04-15 20:09:20 +00:00
return - 999 ; // tap init failed
2015-04-15 00:57:51 +00:00
}
}
2016-06-14 17:09:26 +00:00
// After setting up tap, fall through to CONFIG_UPDATE since we also want to do this...
2015-04-15 00:57:51 +00:00
2016-06-14 17:09:26 +00:00
case ZT_VIRTUAL_NETWORK_CONFIG_OPERATION_CONFIG_UPDATE :
2021-11-18 20:39:55 +00:00
n . setConfig ( nwc ) ;
2021-12-01 20:07:05 +00:00
2021-11-18 20:39:55 +00:00
if ( n . tap ( ) ) { // sanity check
2018-02-08 22:15:32 +00:00
# if defined(__WINDOWS__) && !defined(ZT_SDK)
2017-05-05 03:10:49 +00:00
// wait for up to 5 seconds for the WindowsEthernetTap to actually be initialized
2018-05-07 19:51:39 +00:00
//
2017-05-05 03:10:49 +00:00
// without WindowsEthernetTap::isInitialized() returning true, the won't actually
// be online yet and setting managed routes on it will fail.
const int MAX_SLEEP_COUNT = 500 ;
2021-11-18 21:36:09 +00:00
for ( int i = 0 ; ! ( ( WindowsEthernetTap * ) ( n . tap ( ) . get ( ) ) ) - > isInitialized ( ) & & i < MAX_SLEEP_COUNT ; i + + ) {
2017-05-05 03:10:49 +00:00
Sleep ( 10 ) ;
}
2017-01-05 19:43:26 +00:00
# endif
2020-07-31 18:42:03 +00:00
syncManagedStuff ( n , true , true , true ) ;
2021-11-18 20:39:55 +00:00
n . tap ( ) - > setMtu ( nwc - > mtu ) ;
2015-04-15 20:09:20 +00:00
} else {
2016-06-14 17:09:26 +00:00
_nets . erase ( nwid ) ;
2015-04-15 20:09:20 +00:00
return - 999 ; // tap init failed
2015-04-15 00:57:51 +00:00
}
break ;
2016-06-14 17:09:26 +00:00
2015-09-24 23:21:36 +00:00
case ZT_VIRTUAL_NETWORK_CONFIG_OPERATION_DOWN :
case ZT_VIRTUAL_NETWORK_CONFIG_OPERATION_DESTROY :
2021-11-18 20:39:55 +00:00
if ( n . tap ( ) ) { // sanity check
2018-02-08 22:15:32 +00:00
# if defined(__WINDOWS__) && !defined(ZT_SDK)
2021-11-18 21:36:09 +00:00
std : : string winInstanceId ( ( ( WindowsEthernetTap * ) ( n . tap ( ) . get ( ) ) ) - > instanceId ( ) ) ;
2015-04-24 23:31:19 +00:00
# endif
2016-01-12 19:34:22 +00:00
* nuptr = ( void * ) 0 ;
2021-11-18 20:39:55 +00:00
n . tap ( ) . reset ( ) ;
2016-06-14 17:09:26 +00:00
_nets . erase ( nwid ) ;
2017-10-10 22:01:15 +00:00
# if defined(__WINDOWS__) && !defined(ZT_SDK)
2015-09-24 23:21:36 +00:00
if ( ( op = = ZT_VIRTUAL_NETWORK_CONFIG_OPERATION_DESTROY ) & & ( winInstanceId . length ( ) > 0 ) )
2015-07-30 18:31:38 +00:00
WindowsEthernetTap : : deletePersistentTapDevice ( winInstanceId . c_str ( ) ) ;
2015-04-24 23:31:19 +00:00
# endif
2016-06-21 23:52:49 +00:00
if ( op = = ZT_VIRTUAL_NETWORK_CONFIG_OPERATION_DESTROY ) {
char nlcpath [ 256 ] ;
2017-07-06 23:11:11 +00:00
OSUtils : : ztsnprintf ( nlcpath , sizeof ( nlcpath ) , " %s " ZT_PATH_SEPARATOR_S " networks.d " ZT_PATH_SEPARATOR_S " %.16llx.local.conf " , _homePath . c_str ( ) , nwid ) ;
2016-06-21 23:52:49 +00:00
OSUtils : : rm ( nlcpath ) ;
}
2016-06-14 17:09:26 +00:00
} else {
_nets . erase ( nwid ) ;
2015-04-15 00:57:51 +00:00
}
break ;
}
2015-04-10 03:54:00 +00:00
return 0 ;
2015-04-10 01:14:27 +00:00
}
2015-09-24 23:21:36 +00:00
inline void nodeEventCallback ( enum ZT_Event event , const void * metaData )
2015-04-10 01:14:27 +00:00
{
switch ( event ) {
2015-09-24 23:21:36 +00:00
case ZT_EVENT_FATAL_ERROR_IDENTITY_COLLISION : {
2015-04-10 01:22:04 +00:00
Mutex : : Lock _l ( _termReason_m ) ;
2015-04-10 01:14:27 +00:00
_termReason = ONE_IDENTITY_COLLISION ;
_fatalErrorMessage = " identity/address collision " ;
this - > terminate ( ) ;
} break ;
2015-09-24 23:21:36 +00:00
case ZT_EVENT_TRACE : {
2015-04-10 01:14:27 +00:00
if ( metaData ) {
2016-08-16 21:07:11 +00:00
: : fprintf ( stderr , " %s " ZT_EOL_S , ( const char * ) metaData ) ;
2015-04-10 01:14:27 +00:00
: : fflush ( stderr ) ;
}
} break ;
2017-01-12 01:20:43 +00:00
case ZT_EVENT_USER_MESSAGE : {
const ZT_UserMessage * um = reinterpret_cast < const ZT_UserMessage * > ( metaData ) ;
if ( ( um - > typeId = = ZT_SOFTWARE_UPDATE_USER_MESSAGE_TYPE ) & & ( _updater ) ) {
_updater - > handleSoftwareUpdateUserMessage ( um - > origin , um - > data , um - > length ) ;
}
} break ;
2017-07-14 20:03:16 +00:00
case ZT_EVENT_REMOTE_TRACE : {
const ZT_RemoteTrace * rt = reinterpret_cast < const ZT_RemoteTrace * > ( metaData ) ;
if ( ( rt ) & & ( rt - > len > 0 ) & & ( rt - > len < = ZT_MAX_REMOTE_TRACE_SIZE ) & & ( rt - > data ) )
_controller - > handleRemoteTrace ( * rt ) ;
}
2015-04-10 01:14:27 +00:00
default :
break ;
}
}
2018-08-09 21:32:26 +00:00
# if ZT_VAULT_SUPPORT
inline bool nodeVaultPutIdentity ( enum ZT_StateObjectType type , const void * data , int len )
{
bool retval = false ;
if ( type ! = ZT_STATE_OBJECT_IDENTITY_PUBLIC & & type ! = ZT_STATE_OBJECT_IDENTITY_SECRET ) {
return retval ;
}
CURL * curl = curl_easy_init ( ) ;
if ( curl ) {
char token [ 512 ] = { 0 } ;
snprintf ( token , sizeof ( token ) , " X-Vault-Token: %s " , _vaultToken . c_str ( ) ) ;
struct curl_slist * chunk = NULL ;
chunk = curl_slist_append ( chunk , token ) ;
char content_type [ 512 ] = { 0 } ;
snprintf ( content_type , sizeof ( content_type ) , " Content-Type: application/json " ) ;
chunk = curl_slist_append ( chunk , content_type ) ;
curl_easy_setopt ( curl , CURLOPT_HTTPHEADER , chunk ) ;
char url [ 2048 ] = { 0 } ;
snprintf ( url , sizeof ( url ) , " %s/v1/%s " , _vaultURL . c_str ( ) , _vaultPath . c_str ( ) ) ;
curl_easy_setopt ( curl , CURLOPT_URL , url ) ;
json d = json : : object ( ) ;
if ( type = = ZT_STATE_OBJECT_IDENTITY_PUBLIC ) {
std : : string key ( ( const char * ) data , len ) ;
d [ " public " ] = key ;
}
else if ( type = = ZT_STATE_OBJECT_IDENTITY_SECRET ) {
std : : string key ( ( const char * ) data , len ) ;
d [ " secret " ] = key ;
}
if ( ! d . empty ( ) ) {
std : : string post = d . dump ( ) ;
if ( ! post . empty ( ) ) {
curl_easy_setopt ( curl , CURLOPT_POSTFIELDS , post . c_str ( ) ) ;
curl_easy_setopt ( curl , CURLOPT_POSTFIELDSIZE , post . length ( ) ) ;
# ifndef NDEBUG
curl_easy_setopt ( curl , CURLOPT_VERBOSE , 1L ) ;
# endif
CURLcode res = curl_easy_perform ( curl ) ;
if ( res = = CURLE_OK ) {
long response_code = 0 ;
curl_easy_getinfo ( curl , CURLINFO_RESPONSE_CODE , & response_code ) ;
if ( response_code = = 200 | | response_code = = 204 ) {
retval = true ;
}
}
}
}
curl_easy_cleanup ( curl ) ;
curl = NULL ;
curl_slist_free_all ( chunk ) ;
chunk = NULL ;
}
return retval ;
}
# endif
2017-07-01 00:32:07 +00:00
inline void nodeStatePutFunction ( enum ZT_StateObjectType type , const uint64_t id [ 2 ] , const void * data , int len )
2015-04-10 01:14:27 +00:00
{
2018-08-09 21:32:26 +00:00
# if ZT_VAULT_SUPPORT
if ( _vaultEnabled & & ( type = = ZT_STATE_OBJECT_IDENTITY_SECRET | | type = = ZT_STATE_OBJECT_IDENTITY_PUBLIC ) ) {
if ( nodeVaultPutIdentity ( type , data , len ) ) {
// value successfully written to Vault
return ;
}
// else fallback to disk
}
# endif
2017-07-06 18:45:22 +00:00
char p [ 1024 ] ;
FILE * f ;
bool secure = false ;
2017-08-23 20:40:51 +00:00
char dirname [ 1024 ] ;
dirname [ 0 ] = 0 ;
2017-07-06 17:25:36 +00:00
2017-07-06 18:45:22 +00:00
switch ( type ) {
case ZT_STATE_OBJECT_IDENTITY_PUBLIC :
2017-07-06 23:11:11 +00:00
OSUtils : : ztsnprintf ( p , sizeof ( p ) , " %s " ZT_PATH_SEPARATOR_S " identity.public " , _homePath . c_str ( ) ) ;
2017-07-06 18:45:22 +00:00
break ;
case ZT_STATE_OBJECT_IDENTITY_SECRET :
2017-07-06 23:11:11 +00:00
OSUtils : : ztsnprintf ( p , sizeof ( p ) , " %s " ZT_PATH_SEPARATOR_S " identity.secret " , _homePath . c_str ( ) ) ;
2017-07-06 18:45:22 +00:00
secure = true ;
break ;
case ZT_STATE_OBJECT_PLANET :
2017-07-06 23:11:11 +00:00
OSUtils : : ztsnprintf ( p , sizeof ( p ) , " %s " ZT_PATH_SEPARATOR_S " planet " , _homePath . c_str ( ) ) ;
2017-07-06 18:45:22 +00:00
break ;
case ZT_STATE_OBJECT_MOON :
2017-08-23 20:40:51 +00:00
OSUtils : : ztsnprintf ( dirname , sizeof ( dirname ) , " %s " ZT_PATH_SEPARATOR_S " moons.d " , _homePath . c_str ( ) ) ;
OSUtils : : ztsnprintf ( p , sizeof ( p ) , " %s " ZT_PATH_SEPARATOR_S " %.16llx.moon " , dirname , ( unsigned long long ) id [ 0 ] ) ;
2017-07-06 18:45:22 +00:00
break ;
case ZT_STATE_OBJECT_NETWORK_CONFIG :
2017-08-23 20:40:51 +00:00
OSUtils : : ztsnprintf ( dirname , sizeof ( dirname ) , " %s " ZT_PATH_SEPARATOR_S " networks.d " , _homePath . c_str ( ) ) ;
OSUtils : : ztsnprintf ( p , sizeof ( p ) , " %s " ZT_PATH_SEPARATOR_S " %.16llx.conf " , dirname , ( unsigned long long ) id [ 0 ] ) ;
2017-07-06 18:45:22 +00:00
break ;
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case ZT_STATE_OBJECT_PEER :
OSUtils : : ztsnprintf ( dirname , sizeof ( dirname ) , " %s " ZT_PATH_SEPARATOR_S " peers.d " , _homePath . c_str ( ) ) ;
OSUtils : : ztsnprintf ( p , sizeof ( p ) , " %s " ZT_PATH_SEPARATOR_S " %.10llx.peer " , dirname , ( unsigned long long ) id [ 0 ] ) ;
break ;
2017-07-06 18:45:22 +00:00
default :
return ;
2015-04-10 02:58:04 +00:00
}
2017-07-06 18:45:22 +00:00
2019-06-17 21:02:35 +00:00
if ( ( len > = 0 ) & & ( data ) ) {
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// Check to see if we've already written this first. This reduces
// redundant writes and I/O overhead on most platforms and has
// little effect on others.
2018-03-16 18:27:11 +00:00
f = fopen ( p , " rb " ) ;
2017-07-06 18:45:22 +00:00
if ( f ) {
2019-06-17 22:28:02 +00:00
char * const buf = ( char * ) malloc ( len * 4 ) ;
if ( buf ) {
long l = ( long ) fread ( buf , 1 , ( size_t ) ( len * 4 ) , f ) ;
fclose ( f ) ;
if ( ( l = = ( long ) len ) & & ( memcmp ( data , buf , l ) = = 0 ) ) {
free ( buf ) ;
return ;
}
free ( buf ) ;
}
2017-07-06 17:25:36 +00:00
}
2017-07-06 18:45:22 +00:00
2018-03-16 18:27:11 +00:00
f = fopen ( p , " wb " ) ;
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if ( ( ! f ) & & ( dirname [ 0 ] ) ) { // create subdirectory if it does not exist
OSUtils : : mkdir ( dirname ) ;
2018-03-16 18:27:11 +00:00
f = fopen ( p , " wb " ) ;
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}
2017-07-06 18:45:22 +00:00
if ( f ) {
if ( fwrite ( data , len , 1 , f ) ! = 1 )
fprintf ( stderr , " WARNING: unable to write to file: %s (I/O error) " ZT_EOL_S , p ) ;
fclose ( f ) ;
if ( secure )
OSUtils : : lockDownFile ( p , false ) ;
} else {
fprintf ( stderr , " WARNING: unable to write to file: %s (unable to open) " ZT_EOL_S , p ) ;
}
} else {
OSUtils : : rm ( p ) ;
2015-04-10 02:58:04 +00:00
}
2015-04-10 01:14:27 +00:00
}
2018-08-09 21:32:26 +00:00
# if ZT_VAULT_SUPPORT
inline int nodeVaultGetIdentity ( enum ZT_StateObjectType type , void * data , unsigned int maxlen )
{
if ( type ! = ZT_STATE_OBJECT_IDENTITY_SECRET & & type ! = ZT_STATE_OBJECT_IDENTITY_PUBLIC ) {
return - 1 ;
}
int ret = - 1 ;
CURL * curl = curl_easy_init ( ) ;
if ( curl ) {
char token [ 512 ] = { 0 } ;
snprintf ( token , sizeof ( token ) , " X-Vault-Token: %s " , _vaultToken . c_str ( ) ) ;
struct curl_slist * chunk = NULL ;
chunk = curl_slist_append ( chunk , token ) ;
curl_easy_setopt ( curl , CURLOPT_HTTPHEADER , chunk ) ;
char url [ 2048 ] = { 0 } ;
snprintf ( url , sizeof ( url ) , " %s/v1/%s " , _vaultURL . c_str ( ) , _vaultPath . c_str ( ) ) ;
curl_easy_setopt ( curl , CURLOPT_URL , url ) ;
std : : string response ;
std : : string res_headers ;
curl_easy_setopt ( curl , CURLOPT_WRITEFUNCTION , & curlResponseWrite ) ;
curl_easy_setopt ( curl , CURLOPT_WRITEDATA , & response ) ;
curl_easy_setopt ( curl , CURLOPT_HEADERDATA , & res_headers ) ;
# ifndef NDEBUG
curl_easy_setopt ( curl , CURLOPT_VERBOSE , 1L ) ;
# endif
CURLcode res = curl_easy_perform ( curl ) ;
if ( res = = CURLE_OK ) {
long response_code = 0 ;
curl_easy_getinfo ( curl , CURLINFO_RESPONSE_CODE , & response_code ) ;
if ( response_code = = 200 ) {
try {
json payload = json : : parse ( response ) ;
if ( ! payload [ " data " ] . is_null ( ) ) {
json & d = payload [ " data " ] ;
if ( type = = ZT_STATE_OBJECT_IDENTITY_SECRET ) {
std : : string secret = OSUtils : : jsonString ( d [ " secret " ] , " " ) ;
if ( ! secret . empty ( ) ) {
ret = ( int ) secret . length ( ) ;
memcpy ( data , secret . c_str ( ) , ret ) ;
}
}
else if ( type = = ZT_STATE_OBJECT_IDENTITY_PUBLIC ) {
std : : string pub = OSUtils : : jsonString ( d [ " public " ] , " " ) ;
if ( ! pub . empty ( ) ) {
ret = ( int ) pub . length ( ) ;
memcpy ( data , pub . c_str ( ) , ret ) ;
}
}
}
}
catch ( . . . ) {
ret = - 1 ;
}
}
}
curl_easy_cleanup ( curl ) ;
curl = NULL ;
curl_slist_free_all ( chunk ) ;
chunk = NULL ;
}
return ret ;
}
# endif
2017-07-01 00:32:07 +00:00
inline int nodeStateGetFunction ( enum ZT_StateObjectType type , const uint64_t id [ 2 ] , void * data , unsigned int maxlen )
2015-04-10 01:14:27 +00:00
{
2018-08-09 21:32:26 +00:00
# if ZT_VAULT_SUPPORT
if ( _vaultEnabled & & ( type = = ZT_STATE_OBJECT_IDENTITY_SECRET | | type = = ZT_STATE_OBJECT_IDENTITY_PUBLIC ) ) {
int retval = nodeVaultGetIdentity ( type , data , maxlen ) ;
if ( retval > = 0 )
return retval ;
// else continue file based lookup
}
# endif
2017-06-05 19:15:28 +00:00
char p [ 4096 ] ;
switch ( type ) {
case ZT_STATE_OBJECT_IDENTITY_PUBLIC :
2017-07-06 23:11:11 +00:00
OSUtils : : ztsnprintf ( p , sizeof ( p ) , " %s " ZT_PATH_SEPARATOR_S " identity.public " , _homePath . c_str ( ) ) ;
2017-06-05 19:15:28 +00:00
break ;
case ZT_STATE_OBJECT_IDENTITY_SECRET :
2017-07-06 23:11:11 +00:00
OSUtils : : ztsnprintf ( p , sizeof ( p ) , " %s " ZT_PATH_SEPARATOR_S " identity.secret " , _homePath . c_str ( ) ) ;
2017-06-05 19:15:28 +00:00
break ;
case ZT_STATE_OBJECT_PLANET :
2017-07-06 23:11:11 +00:00
OSUtils : : ztsnprintf ( p , sizeof ( p ) , " %s " ZT_PATH_SEPARATOR_S " planet " , _homePath . c_str ( ) ) ;
2017-06-05 19:15:28 +00:00
break ;
case ZT_STATE_OBJECT_MOON :
2018-05-07 19:51:39 +00:00
OSUtils : : ztsnprintf ( p , sizeof ( p ) , " %s " ZT_PATH_SEPARATOR_S " moons.d " ZT_PATH_SEPARATOR_S " %.16llx.moon " , _homePath . c_str ( ) , ( unsigned long long ) id [ 0 ] ) ;
2017-06-05 19:15:28 +00:00
break ;
2017-08-23 20:40:51 +00:00
case ZT_STATE_OBJECT_NETWORK_CONFIG :
2018-05-07 19:51:39 +00:00
OSUtils : : ztsnprintf ( p , sizeof ( p ) , " %s " ZT_PATH_SEPARATOR_S " networks.d " ZT_PATH_SEPARATOR_S " %.16llx.conf " , _homePath . c_str ( ) , ( unsigned long long ) id [ 0 ] ) ;
2017-08-23 20:40:51 +00:00
break ;
case ZT_STATE_OBJECT_PEER :
2017-08-23 21:09:29 +00:00
OSUtils : : ztsnprintf ( p , sizeof ( p ) , " %s " ZT_PATH_SEPARATOR_S " peers.d " ZT_PATH_SEPARATOR_S " %.10llx.peer " , _homePath . c_str ( ) , ( unsigned long long ) id [ 0 ] ) ;
2017-08-23 20:40:51 +00:00
break ;
2017-06-05 19:15:28 +00:00
default :
return - 1 ;
2015-04-10 02:58:04 +00:00
}
2018-03-16 18:27:11 +00:00
FILE * f = fopen ( p , " rb " ) ;
2017-06-05 19:15:28 +00:00
if ( f ) {
2017-06-05 20:42:43 +00:00
int n = ( int ) fread ( data , 1 , maxlen , f ) ;
2015-04-10 02:58:04 +00:00
fclose ( f ) ;
2018-08-09 21:32:26 +00:00
# if ZT_VAULT_SUPPORT
if ( _vaultEnabled & & ( type = = ZT_STATE_OBJECT_IDENTITY_SECRET | | type = = ZT_STATE_OBJECT_IDENTITY_PUBLIC ) ) {
// If we've gotten here while Vault is enabled, Vault does not know the key and it's been
// read from disk instead.
//
// We should put the value in Vault and remove the local file.
if ( nodeVaultPutIdentity ( type , data , n ) ) {
unlink ( p ) ;
}
}
# endif
2017-06-05 20:42:43 +00:00
if ( n > = 0 )
return n ;
2015-04-10 02:58:04 +00:00
}
2017-06-05 19:15:28 +00:00
return - 1 ;
2015-04-10 01:14:27 +00:00
}
2017-07-06 18:45:22 +00:00
inline int nodeWirePacketSendFunction ( const int64_t localSocket , const struct sockaddr_storage * addr , const void * data , unsigned int len , unsigned int ttl )
2015-04-10 01:14:27 +00:00
{
2015-09-24 23:21:36 +00:00
# ifdef ZT_TCP_FALLBACK_RELAY
2018-01-10 20:41:52 +00:00
if ( _allowTcpFallbackRelay ) {
if ( addr - > ss_family = = AF_INET ) {
// TCP fallback tunnel support, currently IPv4 only
if ( ( len > = 16 ) & & ( reinterpret_cast < const InetAddress * > ( addr ) - > ipScope ( ) = = InetAddress : : IP_SCOPE_GLOBAL ) ) {
// Engage TCP tunnel fallback if we haven't received anything valid from a global
// IP address in ZT_TCP_FALLBACK_AFTER milliseconds. If we do start getting
// valid direct traffic we'll stop using it and close the socket after a while.
const int64_t now = OSUtils : : now ( ) ;
if ( ( ( now - _lastDirectReceiveFromGlobal ) > ZT_TCP_FALLBACK_AFTER ) & & ( ( now - _lastRestart ) > ZT_TCP_FALLBACK_AFTER ) ) {
if ( _tcpFallbackTunnel ) {
bool flushNow = false ;
{
Mutex : : Lock _l ( _tcpFallbackTunnel - > writeq_m ) ;
if ( _tcpFallbackTunnel - > writeq . size ( ) < ( 1024 * 64 ) ) {
if ( _tcpFallbackTunnel - > writeq . length ( ) = = 0 ) {
_phy . setNotifyWritable ( _tcpFallbackTunnel - > sock , true ) ;
flushNow = true ;
}
const unsigned long mlen = len + 7 ;
_tcpFallbackTunnel - > writeq . push_back ( ( char ) 0x17 ) ;
_tcpFallbackTunnel - > writeq . push_back ( ( char ) 0x03 ) ;
_tcpFallbackTunnel - > writeq . push_back ( ( char ) 0x03 ) ; // fake TLS 1.2 header
_tcpFallbackTunnel - > writeq . push_back ( ( char ) ( ( mlen > > 8 ) & 0xff ) ) ;
_tcpFallbackTunnel - > writeq . push_back ( ( char ) ( mlen & 0xff ) ) ;
_tcpFallbackTunnel - > writeq . push_back ( ( char ) 4 ) ; // IPv4
_tcpFallbackTunnel - > writeq . append ( reinterpret_cast < const char * > ( reinterpret_cast < const void * > ( & ( reinterpret_cast < const struct sockaddr_in * > ( addr ) - > sin_addr . s_addr ) ) ) , 4 ) ;
_tcpFallbackTunnel - > writeq . append ( reinterpret_cast < const char * > ( reinterpret_cast < const void * > ( & ( reinterpret_cast < const struct sockaddr_in * > ( addr ) - > sin_port ) ) ) , 2 ) ;
_tcpFallbackTunnel - > writeq . append ( ( const char * ) data , len ) ;
2017-08-18 21:54:10 +00:00
}
}
2018-01-10 20:41:52 +00:00
if ( flushNow ) {
void * tmpptr = ( void * ) _tcpFallbackTunnel ;
phyOnTcpWritable ( _tcpFallbackTunnel - > sock , & tmpptr ) ;
}
} else if ( ( ( now - _lastSendToGlobalV4 ) < ZT_TCP_FALLBACK_AFTER ) & & ( ( now - _lastSendToGlobalV4 ) > ( ZT_PING_CHECK_INVERVAL / 2 ) ) ) {
2022-04-28 18:05:54 +00:00
const InetAddress addr ( _fallbackRelayAddress ) ;
2018-01-10 20:41:52 +00:00
TcpConnection * tc = new TcpConnection ( ) ;
{
Mutex : : Lock _l ( _tcpConnections_m ) ;
_tcpConnections . push_back ( tc ) ;
}
tc - > type = TcpConnection : : TCP_TUNNEL_OUTGOING ;
tc - > remoteAddr = addr ;
tc - > lastReceive = OSUtils : : now ( ) ;
tc - > parent = this ;
tc - > sock = ( PhySocket * ) 0 ; // set in connect handler
tc - > messageSize = 0 ;
2016-03-03 22:21:13 +00:00
bool connected = false ;
2018-01-10 20:41:52 +00:00
_phy . tcpConnect ( reinterpret_cast < const struct sockaddr * > ( & addr ) , connected , ( void * ) tc , true ) ;
2015-05-22 01:33:52 +00:00
}
}
2018-01-10 20:41:52 +00:00
_lastSendToGlobalV4 = now ;
2015-05-22 01:33:52 +00:00
}
2016-03-03 22:21:13 +00:00
}
2016-03-03 21:52:27 +00:00
}
2018-01-10 20:41:52 +00:00
# endif // ZT_TCP_FALLBACK_RELAY
2015-05-22 01:33:52 +00:00
2017-06-06 23:11:19 +00:00
// Even when relaying we still send via UDP. This way if UDP starts
// working we can instantly "fail forward" to it and stop using TCP
// proxy fallback, which is slow.
2015-09-23 21:38:16 +00:00
2017-07-13 22:08:57 +00:00
if ( ( localSocket ! = - 1 ) & & ( localSocket ! = 0 ) & & ( _binder . isUdpSocketValid ( ( PhySocket * ) ( ( uintptr_t ) localSocket ) ) ) ) {
2017-07-06 18:45:22 +00:00
if ( ( ttl ) & & ( addr - > ss_family = = AF_INET ) ) _phy . setIp4UdpTtl ( ( PhySocket * ) ( ( uintptr_t ) localSocket ) , ttl ) ;
const bool r = _phy . udpSend ( ( PhySocket * ) ( ( uintptr_t ) localSocket ) , ( const struct sockaddr * ) addr , data , len ) ;
if ( ( ttl ) & & ( addr - > ss_family = = AF_INET ) ) _phy . setIp4UdpTtl ( ( PhySocket * ) ( ( uintptr_t ) localSocket ) , 255 ) ;
return ( ( r ) ? 0 : - 1 ) ;
} else {
return ( ( _binder . udpSendAll ( _phy , addr , data , len , ttl ) ) ? 0 : - 1 ) ;
2017-06-06 23:11:19 +00:00
}
2015-04-10 01:14:27 +00:00
}
2016-01-12 19:34:22 +00:00
inline void nodeVirtualNetworkFrameFunction ( uint64_t nwid , void * * nuptr , uint64_t sourceMac , uint64_t destMac , unsigned int etherType , unsigned int vlanId , const void * data , unsigned int len )
2015-04-10 01:14:27 +00:00
{
2016-06-14 17:09:26 +00:00
NetworkState * n = reinterpret_cast < NetworkState * > ( * nuptr ) ;
2021-11-18 20:39:55 +00:00
if ( ( ! n ) | | ( ! n - > tap ( ) ) )
2016-01-12 19:34:22 +00:00
return ;
2021-11-18 20:39:55 +00:00
n - > tap ( ) - > put ( MAC ( sourceMac ) , MAC ( destMac ) , etherType , data , len ) ;
2015-04-15 00:57:51 +00:00
}
2017-07-06 18:45:22 +00:00
inline int nodePathCheckFunction ( uint64_t ztaddr , const int64_t localSocket , const struct sockaddr_storage * remoteAddr )
2016-01-11 18:17:44 +00:00
{
2016-11-22 18:54:58 +00:00
// Make sure we're not trying to do ZeroTier-over-ZeroTier
{
Mutex : : Lock _l ( _nets_m ) ;
for ( std : : map < uint64_t , NetworkState > : : const_iterator n ( _nets . begin ( ) ) ; n ! = _nets . end ( ) ; + + n ) {
2021-11-18 20:39:55 +00:00
if ( n - > second . tap ( ) ) {
std : : vector < InetAddress > ips ( n - > second . tap ( ) - > ips ( ) ) ;
2016-11-22 18:54:58 +00:00
for ( std : : vector < InetAddress > : : const_iterator i ( ips . begin ( ) ) ; i ! = ips . end ( ) ; + + i ) {
if ( i - > containsAddress ( * ( reinterpret_cast < const InetAddress * > ( remoteAddr ) ) ) ) {
return 0 ;
}
2016-01-11 18:17:44 +00:00
}
}
}
}
2016-12-25 21:54:27 +00:00
2016-06-21 14:32:58 +00:00
/* Note: I do not think we need to scan for overlap with managed routes
* because of the " route forking " and interface binding that we do . This
* ensures ( we hope ) that ZeroTier traffic will still take the physical
* path even if its managed routes override this for other traffic . Will
2016-11-22 22:23:13 +00:00
* revisit if we see recursion problems . */
2016-11-22 18:54:58 +00:00
// Check blacklists
const Hashtable < uint64_t , std : : vector < InetAddress > > * blh = ( const Hashtable < uint64_t , std : : vector < InetAddress > > * ) 0 ;
const std : : vector < InetAddress > * gbl = ( const std : : vector < InetAddress > * ) 0 ;
if ( remoteAddr - > ss_family = = AF_INET ) {
blh = & _v4Blacklists ;
gbl = & _globalV4Blacklist ;
} else if ( remoteAddr - > ss_family = = AF_INET6 ) {
blh = & _v6Blacklists ;
gbl = & _globalV6Blacklist ;
}
if ( blh ) {
Mutex : : Lock _l ( _localConfig_m ) ;
const std : : vector < InetAddress > * l = blh - > get ( ztaddr ) ;
if ( l ) {
for ( std : : vector < InetAddress > : : const_iterator a ( l - > begin ( ) ) ; a ! = l - > end ( ) ; + + a ) {
if ( a - > containsAddress ( * reinterpret_cast < const InetAddress * > ( remoteAddr ) ) )
return 0 ;
}
}
2018-01-09 18:16:49 +00:00
}
if ( gbl ) {
2016-11-22 18:54:58 +00:00
for ( std : : vector < InetAddress > : : const_iterator a ( gbl - > begin ( ) ) ; a ! = gbl - > end ( ) ; + + a ) {
if ( a - > containsAddress ( * reinterpret_cast < const InetAddress * > ( remoteAddr ) ) )
return 0 ;
}
}
2016-01-11 18:17:44 +00:00
return 1 ;
}
2020-11-25 19:05:36 +00:00
inline int nodePathLookupFunction ( uint64_t ztaddr , int family , struct sockaddr_storage * result )
2016-11-22 18:54:58 +00:00
{
2020-11-25 19:05:36 +00:00
const Hashtable < uint64_t , std : : vector < InetAddress > > * lh = ( const Hashtable < uint64_t , std : : vector < InetAddress > > * ) 0 ;
2016-11-22 18:54:58 +00:00
if ( family < 0 )
lh = ( _node - > prng ( ) & 1 ) ? & _v4Hints : & _v6Hints ;
else if ( family = = AF_INET )
lh = & _v4Hints ;
else if ( family = = AF_INET6 )
lh = & _v6Hints ;
else return 0 ;
2020-11-25 19:05:36 +00:00
const std : : vector < InetAddress > * l = lh - > get ( ztaddr ) ;
if ( ( l ) & & ( ! l - > empty ( ) ) ) {
memcpy ( result , & ( ( * l ) [ ( unsigned long ) _node - > prng ( ) % l - > size ( ) ] ) , sizeof ( struct sockaddr_storage ) ) ;
2016-11-22 18:54:58 +00:00
return 1 ;
2020-11-25 19:05:36 +00:00
}
else return 0 ;
2016-11-22 18:54:58 +00:00
}
2020-11-25 19:05:36 +00:00
inline void tapFrameHandler ( uint64_t nwid , const MAC & from , const MAC & to , unsigned int etherType , unsigned int vlanId , const void * data , unsigned int len )
2015-04-15 00:57:51 +00:00
{
2020-11-25 19:05:36 +00:00
_node - > processVirtualNetworkFrame ( ( void * ) 0 , OSUtils : : now ( ) , nwid , from . toInt ( ) , to . toInt ( ) , etherType , vlanId , data , len , & _nextBackgroundTaskDeadline ) ;
2015-04-10 01:14:27 +00:00
}
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inline void onHttpRequestToServer ( TcpConnection * tc )
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{
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char tmpn [ 4096 ] ;
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std : : string data ;
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std : : string contentType ( " text/plain " ) ; // default if not changed in handleRequest()
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unsigned int scode = 404 ;
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// Note that we check allowed IP ranges when HTTP connections are first detected in
// phyOnTcpData(). If we made it here the source IP is okay.
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try {
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scode = handleControlPlaneHttpRequest ( tc - > remoteAddr , tc - > parser . method , tc - > url , tc - > headers , tc - > readq , data , contentType ) ;
}
catch ( std : : exception & exc ) {
fprintf ( stderr , " WARNING: unexpected exception processing control HTTP request: %s " ZT_EOL_S , exc . what ( ) ) ;
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scode = 500 ;
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}
catch ( . . . ) {
fprintf ( stderr , " WARNING: unexpected exception processing control HTTP request: unknown exception " ZT_EOL_S ) ;
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scode = 500 ;
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}
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const char * scodestr ;
switch ( scode ) {
case 200 : scodestr = " OK " ; break ;
case 400 : scodestr = " Bad Request " ; break ;
case 401 : scodestr = " Unauthorized " ; break ;
case 403 : scodestr = " Forbidden " ; break ;
case 404 : scodestr = " Not Found " ; break ;
case 500 : scodestr = " Internal Server Error " ; break ;
case 501 : scodestr = " Not Implemented " ; break ;
case 503 : scodestr = " Service Unavailable " ; break ;
default : scodestr = " Error " ; break ;
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}
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OSUtils : : ztsnprintf ( tmpn , sizeof ( tmpn ) , " HTTP/1.1 %.3u %s \r \n Cache-Control: no-cache \r \n Pragma: no-cache \r \n Content-Type: %s \r \n Content-Length: %lu \r \n Connection: close \r \n \r \n " ,
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scode ,
scodestr ,
contentType . c_str ( ) ,
( unsigned long ) data . length ( ) ) ;
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{
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Mutex : : Lock _l ( tc - > writeq_m ) ;
tc - > writeq = tmpn ;
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if ( tc - > parser . method ! = HTTP_HEAD )
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tc - > writeq . append ( data ) ;
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}
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_phy . setNotifyWritable ( tc - > sock , true ) ;
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}
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inline void onHttpResponseFromClient ( TcpConnection * tc )
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{
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_phy . close ( tc - > sock ) ;
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}
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bool shouldBindInterface ( const char * ifname , const InetAddress & ifaddr )
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{
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# if defined(__linux__) || defined(linux) || defined(__LINUX__) || defined(__linux)
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if ( ( ifname [ 0 ] = = ' l ' ) & & ( ifname [ 1 ] = = ' o ' ) ) return false ; // loopback
if ( ( ifname [ 0 ] = = ' z ' ) & & ( ifname [ 1 ] = = ' t ' ) ) return false ; // sanity check: zt#
if ( ( ifname [ 0 ] = = ' t ' ) & & ( ifname [ 1 ] = = ' u ' ) & & ( ifname [ 2 ] = = ' n ' ) ) return false ; // tun# is probably an OpenVPN tunnel or similar
if ( ( ifname [ 0 ] = = ' t ' ) & & ( ifname [ 1 ] = = ' a ' ) & & ( ifname [ 2 ] = = ' p ' ) ) return false ; // tap# is probably an OpenVPN tunnel or similar
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# endif
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# ifdef __APPLE__
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if ( ( ifname [ 0 ] = = ' f ' ) & & ( ifname [ 1 ] = = ' e ' ) & & ( ifname [ 2 ] = = ' t ' ) & & ( ifname [ 3 ] = = ' h ' ) ) return false ; // ... as is feth#
if ( ( ifname [ 0 ] = = ' l ' ) & & ( ifname [ 1 ] = = ' o ' ) ) return false ; // loopback
if ( ( ifname [ 0 ] = = ' z ' ) & & ( ifname [ 1 ] = = ' t ' ) ) return false ; // sanity check: zt#
if ( ( ifname [ 0 ] = = ' t ' ) & & ( ifname [ 1 ] = = ' u ' ) & & ( ifname [ 2 ] = = ' n ' ) ) return false ; // tun# is probably an OpenVPN tunnel or similar
if ( ( ifname [ 0 ] = = ' t ' ) & & ( ifname [ 1 ] = = ' a ' ) & & ( ifname [ 2 ] = = ' p ' ) ) return false ; // tap# is probably an OpenVPN tunnel or similar
if ( ( ifname [ 0 ] = = ' u ' ) & & ( ifname [ 1 ] = = ' t ' ) & & ( ifname [ 2 ] = = ' u ' ) & & ( ifname [ 3 ] = = ' n ' ) ) return false ; // ... as is utun#
# endif
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# ifdef __FreeBSD__
if ( ( ifname [ 0 ] = = ' l ' ) & & ( ifname [ 1 ] = = ' o ' ) ) return false ; // loopback
if ( ( ifname [ 0 ] = = ' z ' ) & & ( ifname [ 1 ] = = ' t ' ) ) return false ; // sanity check: zt#
# endif
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{
Mutex : : Lock _l ( _localConfig_m ) ;
for ( std : : vector < std : : string > : : const_iterator p ( _interfacePrefixBlacklist . begin ( ) ) ; p ! = _interfacePrefixBlacklist . end ( ) ; + + p ) {
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if ( ! strncmp ( p - > c_str ( ) , ifname , p - > length ( ) ) )
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return false ;
}
}
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{
// Check global blacklists
const std : : vector < InetAddress > * gbl = ( const std : : vector < InetAddress > * ) 0 ;
if ( ifaddr . ss_family = = AF_INET ) {
gbl = & _globalV4Blacklist ;
} else if ( ifaddr . ss_family = = AF_INET6 ) {
gbl = & _globalV6Blacklist ;
}
if ( gbl ) {
Mutex : : Lock _l ( _localConfig_m ) ;
for ( std : : vector < InetAddress > : : const_iterator a ( gbl - > begin ( ) ) ; a ! = gbl - > end ( ) ; + + a ) {
if ( a - > containsAddress ( ifaddr ) )
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return false ;
}
}
}
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{
Mutex : : Lock _l ( _nets_m ) ;
for ( std : : map < uint64_t , NetworkState > : : const_iterator n ( _nets . begin ( ) ) ; n ! = _nets . end ( ) ; + + n ) {
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if ( n - > second . tap ( ) ) {
std : : vector < InetAddress > ips ( n - > second . tap ( ) - > ips ( ) ) ;
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for ( std : : vector < InetAddress > : : const_iterator i ( ips . begin ( ) ) ; i ! = ips . end ( ) ; + + i ) {
if ( i - > ipsEqual ( ifaddr ) )
return false ;
}
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# ifdef _WIN32
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if ( n - > second . tap ( ) - > friendlyName ( ) = = ifname )
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return false ;
# endif
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}
}
}
return true ;
}
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unsigned int _getRandomPort ( )
{
unsigned int randp = 0 ;
Utils : : getSecureRandom ( & randp , sizeof ( randp ) ) ;
randp = 20000 + ( randp % 45500 ) ;
for ( int i = 0 ; ; + + i ) {
if ( i > 1000 ) {
return 0 ;
} else if ( + + randp > = 65536 ) {
randp = 20000 ;
}
if ( _trialBind ( randp ) )
break ;
}
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return randp ;
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}
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bool _trialBind ( unsigned int port )
{
struct sockaddr_in in4 ;
struct sockaddr_in6 in6 ;
PhySocket * tb ;
memset ( & in4 , 0 , sizeof ( in4 ) ) ;
in4 . sin_family = AF_INET ;
in4 . sin_port = Utils : : hton ( ( uint16_t ) port ) ;
tb = _phy . udpBind ( reinterpret_cast < const struct sockaddr * > ( & in4 ) , ( void * ) 0 , 0 ) ;
if ( tb ) {
_phy . close ( tb , false ) ;
tb = _phy . tcpListen ( reinterpret_cast < const struct sockaddr * > ( & in4 ) , ( void * ) 0 ) ;
if ( tb ) {
_phy . close ( tb , false ) ;
return true ;
}
}
memset ( & in6 , 0 , sizeof ( in6 ) ) ;
in6 . sin6_family = AF_INET6 ;
in6 . sin6_port = Utils : : hton ( ( uint16_t ) port ) ;
tb = _phy . udpBind ( reinterpret_cast < const struct sockaddr * > ( & in6 ) , ( void * ) 0 , 0 ) ;
if ( tb ) {
_phy . close ( tb , false ) ;
tb = _phy . tcpListen ( reinterpret_cast < const struct sockaddr * > ( & in6 ) , ( void * ) 0 ) ;
if ( tb ) {
_phy . close ( tb , false ) ;
return true ;
}
}
return false ;
}
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} ;
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static int SnodeVirtualNetworkConfigFunction ( ZT_Node * node , void * uptr , void * tptr , uint64_t nwid , void * * nuptr , enum ZT_VirtualNetworkConfigOperation op , const ZT_VirtualNetworkConfig * nwconf )
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{ return reinterpret_cast < OneServiceImpl * > ( uptr ) - > nodeVirtualNetworkConfigFunction ( nwid , nuptr , op , nwconf ) ; }
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static void SnodeEventCallback ( ZT_Node * node , void * uptr , void * tptr , enum ZT_Event event , const void * metaData )
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{ reinterpret_cast < OneServiceImpl * > ( uptr ) - > nodeEventCallback ( event , metaData ) ; }
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static void SnodeStatePutFunction ( ZT_Node * node , void * uptr , void * tptr , enum ZT_StateObjectType type , const uint64_t id [ 2 ] , const void * data , int len )
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{ reinterpret_cast < OneServiceImpl * > ( uptr ) - > nodeStatePutFunction ( type , id , data , len ) ; }
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static int SnodeStateGetFunction ( ZT_Node * node , void * uptr , void * tptr , enum ZT_StateObjectType type , const uint64_t id [ 2 ] , void * data , unsigned int maxlen )
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{ return reinterpret_cast < OneServiceImpl * > ( uptr ) - > nodeStateGetFunction ( type , id , data , maxlen ) ; }
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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 )
{ return reinterpret_cast < OneServiceImpl * > ( uptr ) - > nodeWirePacketSendFunction ( localSocket , addr , data , len , ttl ) ; }
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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 )
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{ reinterpret_cast < OneServiceImpl * > ( uptr ) - > nodeVirtualNetworkFrameFunction ( nwid , nuptr , sourceMac , destMac , etherType , vlanId , data , len ) ; }
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static int SnodePathCheckFunction ( ZT_Node * node , void * uptr , void * tptr , uint64_t ztaddr , int64_t localSocket , const struct sockaddr_storage * remoteAddr )
{ return reinterpret_cast < OneServiceImpl * > ( uptr ) - > nodePathCheckFunction ( ztaddr , localSocket , remoteAddr ) ; }
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static int SnodePathLookupFunction ( ZT_Node * node , void * uptr , void * tptr , uint64_t ztaddr , int family , struct sockaddr_storage * result )
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{ return reinterpret_cast < OneServiceImpl * > ( uptr ) - > nodePathLookupFunction ( ztaddr , family , result ) ; }
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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 )
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{ reinterpret_cast < OneServiceImpl * > ( uptr ) - > tapFrameHandler ( nwid , from , to , etherType , vlanId , data , len ) ; }
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static int ShttpOnMessageBegin ( http_parser * parser )
{
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TcpConnection * tc = reinterpret_cast < TcpConnection * > ( parser - > data ) ;
tc - > currentHeaderField = " " ;
tc - > currentHeaderValue = " " ;
tc - > messageSize = 0 ;
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tc - > url . clear ( ) ;
tc - > status . clear ( ) ;
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tc - > headers . clear ( ) ;
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tc - > readq . clear ( ) ;
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return 0 ;
}
static int ShttpOnUrl ( http_parser * parser , const char * ptr , size_t length )
{
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TcpConnection * tc = reinterpret_cast < TcpConnection * > ( parser - > data ) ;
tc - > messageSize + = ( unsigned long ) length ;
if ( tc - > messageSize > ZT_MAX_HTTP_MESSAGE_SIZE )
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return - 1 ;
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tc - > url . append ( ptr , length ) ;
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return 0 ;
}
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# if (HTTP_PARSER_VERSION_MAJOR >= 2) && (HTTP_PARSER_VERSION_MINOR >= 2)
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static int ShttpOnStatus ( http_parser * parser , const char * ptr , size_t length )
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# else
static int ShttpOnStatus ( http_parser * parser )
# endif
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{ return 0 ; }
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static int ShttpOnHeaderField ( http_parser * parser , const char * ptr , size_t length )
{
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TcpConnection * tc = reinterpret_cast < TcpConnection * > ( parser - > data ) ;
tc - > messageSize + = ( unsigned long ) length ;
if ( tc - > messageSize > ZT_MAX_HTTP_MESSAGE_SIZE )
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return - 1 ;
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if ( ( tc - > currentHeaderField . length ( ) ) & & ( tc - > currentHeaderValue . length ( ) ) ) {
tc - > headers [ tc - > currentHeaderField ] = tc - > currentHeaderValue ;
tc - > currentHeaderField = " " ;
tc - > currentHeaderValue = " " ;
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}
for ( size_t i = 0 ; i < length ; + + i )
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tc - > currentHeaderField . push_back ( OSUtils : : toLower ( ptr [ i ] ) ) ;
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return 0 ;
}
static int ShttpOnValue ( http_parser * parser , const char * ptr , size_t length )
{
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TcpConnection * tc = reinterpret_cast < TcpConnection * > ( parser - > data ) ;
tc - > messageSize + = ( unsigned long ) length ;
if ( tc - > messageSize > ZT_MAX_HTTP_MESSAGE_SIZE )
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return - 1 ;
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tc - > currentHeaderValue . append ( ptr , length ) ;
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return 0 ;
}
static int ShttpOnHeadersComplete ( http_parser * parser )
{
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TcpConnection * tc = reinterpret_cast < TcpConnection * > ( parser - > data ) ;
if ( ( tc - > currentHeaderField . length ( ) ) & & ( tc - > currentHeaderValue . length ( ) ) )
tc - > headers [ tc - > currentHeaderField ] = tc - > currentHeaderValue ;
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return 0 ;
}
static int ShttpOnBody ( http_parser * parser , const char * ptr , size_t length )
{
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TcpConnection * tc = reinterpret_cast < TcpConnection * > ( parser - > data ) ;
tc - > messageSize + = ( unsigned long ) length ;
if ( tc - > messageSize > ZT_MAX_HTTP_MESSAGE_SIZE )
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return - 1 ;
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tc - > readq . append ( ptr , length ) ;
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return 0 ;
}
static int ShttpOnMessageComplete ( http_parser * parser )
{
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TcpConnection * tc = reinterpret_cast < TcpConnection * > ( parser - > data ) ;
if ( tc - > type = = TcpConnection : : TCP_HTTP_INCOMING ) {
tc - > parent - > onHttpRequestToServer ( tc ) ;
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} else {
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tc - > parent - > onHttpResponseFromClient ( tc ) ;
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}
return 0 ;
}
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} // anonymous namespace
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std : : string OneService : : platformDefaultHomePath ( )
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{
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return OSUtils : : platformDefaultHomePath ( ) ;
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}
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OneService * OneService : : newInstance ( const char * hp , unsigned int port ) { return new OneServiceImpl ( hp , port ) ; }
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OneService : : ~ OneService ( ) { }
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} // namespace ZeroTier
