/*
* ZeroTier One - Network Virtualization Everywhere
* Copyright (C) 2011-2016 ZeroTier, Inc. https://www.zerotier.com/
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <time.h>
#include <errno.h>
#include "node/Constants.hpp"
#ifdef __WINDOWS__
#include <WinSock2.h>
#include <Windows.h>
#include <tchar.h>
#include <wchar.h>
#include <lmcons.h>
#include <newdev.h>
#include <atlbase.h>
#include "osdep/WindowsEthernetTap.hpp"
#include "windows/ZeroTierOne/ServiceInstaller.h"
#include "windows/ZeroTierOne/ServiceBase.h"
#include "windows/ZeroTierOne/ZeroTierOneService.h"
#else
#include <unistd.h>
#include <pwd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <signal.h>
#endif
#include <string>
#include <stdexcept>
#include <iostream>
#include <sstream>
#include "version.h"
#include "include/ZeroTierOne.h"
#include "node/Identity.hpp"
#include "node/CertificateOfMembership.hpp"
#include "node/Utils.hpp"
#include "node/NetworkController.hpp"
#include "osdep/OSUtils.hpp"
#include "osdep/Http.hpp"
#include "service/OneService.hpp"
#include "ext/json/json.hpp"
#define ZT_PID_PATH "zerotier-one.pid"
using namespace ZeroTier;
static OneService *volatile zt1Service = (OneService *)0;
#define PROGRAM_NAME "ZeroTier One"
#define COPYRIGHT_NOTICE "Copyright © 2011–2016 ZeroTier, Inc."
#define LICENSE_GRANT \
"This is free software: you may copy, modify, and/or distribute this" ZT_EOL_S \
"work under the terms of the GNU General Public License, version 3 or" ZT_EOL_S \
"later as published by the Free Software Foundation." ZT_EOL_S \
"No warranty expressed or implied." ZT_EOL_S
/****************************************************************************/
/* zerotier-cli personality */
/****************************************************************************/
// This is getting deprecated soon in favor of the stuff in cli/
static void cliPrintHelp(const char *pn,FILE *out)
{
fprintf(out,
"%s version %d.%d.%d" ZT_EOL_S,
PROGRAM_NAME,
ZEROTIER_ONE_VERSION_MAJOR, ZEROTIER_ONE_VERSION_MINOR, ZEROTIER_ONE_VERSION_REVISION);
fprintf(out,
COPYRIGHT_NOTICE ZT_EOL_S
LICENSE_GRANT ZT_EOL_S);
fprintf(out,"Usage: %s [-switches] <command/path> [<args>]" ZT_EOL_S"" ZT_EOL_S,pn);
fprintf(out,"Available switches:" ZT_EOL_S);
fprintf(out," -h - Display this help" ZT_EOL_S);
fprintf(out," -v - Show version" ZT_EOL_S);
fprintf(out," -j - Display full raw JSON output" ZT_EOL_S);
fprintf(out," -D<path> - ZeroTier home path for parameter auto-detect" ZT_EOL_S);
fprintf(out," -p<port> - HTTP port (default: auto)" ZT_EOL_S);
fprintf(out," -T<token> - Authentication token (default: auto)" ZT_EOL_S);
fprintf(out,ZT_EOL_S"Available commands:" ZT_EOL_S);
fprintf(out," info - Display status info" ZT_EOL_S);
fprintf(out," listpeers - List all peers" ZT_EOL_S);
fprintf(out," listnetworks - List all networks" ZT_EOL_S);
fprintf(out," join <network> - Join a network" ZT_EOL_S);
fprintf(out," leave <network> - Leave a network" ZT_EOL_S);
fprintf(out," set <network> <setting> - Set a network setting" ZT_EOL_S);
}
static std::string cliFixJsonCRs(const std::string &s)
{
std::string r;
for(std::string::const_iterator c(s.begin());c!=s.end();++c) {
if (*c == '\n')
r.append(ZT_EOL_S);
else r.push_back(*c);
}
return r;
}
#ifdef __WINDOWS__
static int cli(int argc, _TCHAR* argv[])
#else
static int cli(int argc,char **argv)
#endif
{
unsigned int port = 0;
std::string homeDir,command,arg1,arg2,authToken;
std::string ip("127.0.0.1");
bool json = false;
for(int i=1;i<argc;++i) {
if (argv[i][0] == '-') {
switch(argv[i][1]) {
case 'q': // ignore -q used to invoke this personality
if (argv[i][2]) {
cliPrintHelp(argv[0],stdout);
return 1;
}
break;
case 'j':
if (argv[i][2]) {
cliPrintHelp(argv[0],stdout);
return 1;
}
json = true;
break;
case 'p':
port = Utils::strToUInt(argv[i] + 2);
if ((port > 0xffff)||(port == 0)) {
cliPrintHelp(argv[0],stdout);
return 1;
}
break;
case 'D':
if (argv[i][2]) {
homeDir = argv[i] + 2;
} else {
cliPrintHelp(argv[0],stdout);
return 1;
}
break;
case 'H':
if (argv[i][2]) {
ip = argv[i] + 2;
} else {
cliPrintHelp(argv[0],stdout);
return 1;
}
break;
case 'T':
if (argv[i][2]) {
authToken = argv[i] + 2;
} else {
cliPrintHelp(argv[0],stdout);
return 1;
}
break;
case 'v':
if (argv[i][2]) {
cliPrintHelp(argv[0],stdout);
return 1;
}
printf("%d.%d.%d" ZT_EOL_S,ZEROTIER_ONE_VERSION_MAJOR,ZEROTIER_ONE_VERSION_MINOR,ZEROTIER_ONE_VERSION_REVISION);
return 0;
case 'h':
case '?':
default:
cliPrintHelp(argv[0],stdout);
return 0;
}
} else {
if (arg1.length())
arg2 = argv[i];
else if (command.length())
arg1 = argv[i];
else command = argv[i];
}
}
if (!homeDir.length())
homeDir = OneService::platformDefaultHomePath();
if ((!port)||(!authToken.length())) {
if (!homeDir.length()) {
fprintf(stderr,"%s: missing port or authentication token and no home directory specified to auto-detect" ZT_EOL_S,argv[0]);
return 2;
}
if (!port) {
std::string portStr;
OSUtils::readFile((homeDir + ZT_PATH_SEPARATOR_S + "zerotier-one.port").c_str(),portStr);
port = Utils::strToUInt(portStr.c_str());
if ((port == 0)||(port > 0xffff)) {
fprintf(stderr,"%s: missing port and zerotier-one.port not found in %s" ZT_EOL_S,argv[0],homeDir.c_str());
return 2;
}
}
if (!authToken.length()) {
OSUtils::readFile((homeDir + ZT_PATH_SEPARATOR_S + "authtoken.secret").c_str(),authToken);
#ifdef __UNIX_LIKE__
if (!authToken.length()) {
const char *hd = getenv("HOME");
if (hd) {
char p[4096];
#ifdef __APPLE__
Utils::snprintf(p,sizeof(p),"%s/Library/Application Support/ZeroTier/One/authtoken.secret",hd);
#else
Utils::snprintf(p,sizeof(p),"%s/.zeroTierOneAuthToken",hd);
#endif
OSUtils::readFile(p,authToken);
}
}
#endif
if (!authToken.length()) {
fprintf(stderr,"%s: missing authentication token and authtoken.secret not found (or readable) in %s" ZT_EOL_S,argv[0],homeDir.c_str());
return 2;
}
}
}
InetAddress addr;
{
char addrtmp[256];
Utils::snprintf(addrtmp,sizeof(addrtmp),"%s/%u",ip.c_str(),port);
addr = InetAddress(addrtmp);
}
std::map<std::string,std::string> requestHeaders;
std::map<std::string,std::string> responseHeaders;
std::string responseBody;
requestHeaders["X-ZT1-Auth"] = authToken;
if ((command.length() > 0)&&(command[0] == '/')) {
unsigned int scode = Http::GET(
1024 * 1024 * 16,
60000,
(const struct sockaddr *)&addr,
command.c_str(),
requestHeaders,
responseHeaders,
responseBody);
if (scode == 200) {
printf("%s",cliFixJsonCRs(responseBody).c_str());
return 0;
} else {
printf("%u %s %s" ZT_EOL_S,scode,command.c_str(),responseBody.c_str());
return 1;
}
} else if ((command == "info")||(command == "status")) {
const unsigned int scode = Http::GET(1024 * 1024 * 16,60000,(const struct sockaddr *)&addr,"/status",requestHeaders,responseHeaders,responseBody);
nlohmann::json j;
try {
j = nlohmann::json::parse(responseBody);
} catch (std::exception &exc) {
printf("%u %s invalid JSON response (%s)" ZT_EOL_S,scode,command.c_str(),exc.what());
return 1;
} catch ( ... ) {
printf("%u %s invalid JSON response (unknown exception)" ZT_EOL_S,scode,command.c_str());
return 1;
}
if (scode == 200) {
std::ostringstream out;
if (json) {
out << j.dump(2) << ZT_EOL_S;
} else {
if (j.is_object())
out << "200 info " << j["address"].get<std::string>() << " " << j["version"].get<std::string>() << " " << ((j["tcpFallbackActive"]) ? "TUNNELED" : ((j["online"]) ? "ONLINE" : "OFFLINE")) << ZT_EOL_S;
}
printf("%s",out.str().c_str());
return 0;
} else {
printf("%u %s %s" ZT_EOL_S,scode,command.c_str(),responseBody.c_str());
return 1;
}
} else if (command == "listpeers") {
const unsigned int scode = Http::GET(1024 * 1024 * 16,60000,(const struct sockaddr *)&addr,"/peer",requestHeaders,responseHeaders,responseBody);
nlohmann::json j;
try {
j = nlohmann::json::parse(responseBody);
} catch (std::exception &exc) {
printf("%u %s invalid JSON response (%s)" ZT_EOL_S,scode,command.c_str(),exc.what());
return 1;
} catch ( ... ) {
printf("%u %s invalid JSON response (unknown exception)" ZT_EOL_S,scode,command.c_str());
return 1;
}
if (scode == 200) {
std::ostringstream out;
if (json) {
out << j.dump(2) << ZT_EOL_S;
} else {
out << "200 listpeers <ztaddr> <path> <latency> <version> <role>" << ZT_EOL_S;
if (j.is_array()) {
for(unsigned long k=0;k<j.size();++k) {
auto &p = j[k];
std::string bestPath;
auto paths = p["paths"];
if (paths.is_array()) {
for(unsigned long i=0;i<paths.size();++i) {
auto &path = paths[i];
if (path["preferred"]) {
char tmp[256];
std::string addr = path["address"];
const uint64_t now = OSUtils::now();
Utils::snprintf(tmp,sizeof(tmp),"%s;%llu;%llu",addr.c_str(),now - (uint64_t)path["lastSend"],now - (uint64_t)path["lastReceive"]);
bestPath = tmp;
break;
}
}
}
if (bestPath.length() == 0) bestPath = "-";
char ver[128];
int64_t vmaj = p["versionMajor"];
int64_t vmin = p["versionMinor"];
int64_t vrev = p["versionRev"];
if (vmaj >= 0) {
Utils::snprintf(ver,sizeof(ver),"%lld.%lld.%lld",vmaj,vmin,vrev);
} else {
ver[0] = '-';
ver[1] = (char)0;
}
out << "200 listpeers " << p["address"].get<std::string>() << " " << bestPath << " " << p["latency"] << " " << ver << " " << p["role"].get<std::string>() << ZT_EOL_S;
}
}
}
printf("%s",out.str().c_str());
return 0;
} else {
printf("%u %s %s" ZT_EOL_S,scode,command.c_str(),responseBody.c_str());
return 1;
}
} else if (command == "listnetworks") {
const unsigned int scode = Http::GET(1024 * 1024 * 16,60000,(const struct sockaddr *)&addr,"/network",requestHeaders,responseHeaders,responseBody);
nlohmann::json j;
try {
j = nlohmann::json::parse(responseBody);
} catch (std::exception &exc) {
printf("%u %s invalid JSON response (%s)" ZT_EOL_S,scode,command.c_str(),exc.what());
return 1;
} catch ( ... ) {
printf("%u %s invalid JSON response (unknown exception)" ZT_EOL_S,scode,command.c_str());
return 1;
}
if (scode == 200) {
std::ostringstream out;
if (json) {
out << j.dump(2) << ZT_EOL_S;
} else {
out << "200 listnetworks <nwid> <name> <mac> <status> <type> <dev> <ZT assigned ips>" << ZT_EOL_S;
if (j.is_array()) {
for(unsigned long i=0;i<j.size();++i) {
auto &n = j[i];
if (n.is_object()) {
std::string aa;
auto &assignedAddresses = n["assignedAddresses"];
if (assignedAddresses.is_array()) {
for(unsigned long j=0;j<assignedAddresses.size();++j) {
auto &addr = assignedAddresses[j];
if (addr.is_string()) {
if (aa.length() > 0) aa.push_back(',');
aa.append(addr);
}
}
}
if (aa.length() == 0) aa = "-";
std::string name = n["name"];
if (name.length() == 0) name = "-";
out << "200 listnetworks " << n["nwid"].get<std::string>() << " " << name << " " << n["mac"].get<std::string>() << " " << n["status"].get<std::string>() << " " << n["type"].get<std::string>() << " " << n["portDeviceName"].get<std::string>() << " " << aa << ZT_EOL_S;
}
}
}
}
printf("%s",out.str().c_str());
return 0;
} else {
printf("%u %s %s" ZT_EOL_S,scode,command.c_str(),responseBody.c_str());
return 1;
}
} else if (command == "join") {
if (arg1.length() != 16) {
cliPrintHelp(argv[0],stderr);
return 2;
}
requestHeaders["Content-Type"] = "application/json";
requestHeaders["Content-Length"] = "2";
unsigned int scode = Http::POST(
1024 * 1024 * 16,
60000,
(const struct sockaddr *)&addr,
(std::string("/network/") + arg1).c_str(),
requestHeaders,
"{}",
2,
responseHeaders,
responseBody);
if (scode == 200) {
if (json) {
printf("%s",cliFixJsonCRs(responseBody).c_str());
} else {
printf("200 join OK" ZT_EOL_S);
}
return 0;
} else {
printf("%u %s %s" ZT_EOL_S,scode,command.c_str(),responseBody.c_str());
return 1;
}
} else if (command == "leave") {
if (arg1.length() != 16) {
cliPrintHelp(argv[0],stderr);
return 2;
}
unsigned int scode = Http::DEL(
1024 * 1024 * 16,
60000,
(const struct sockaddr *)&addr,
(std::string("/network/") + arg1).c_str(),
requestHeaders,
responseHeaders,
responseBody);
if (scode == 200) {
if (json) {
printf("%s",cliFixJsonCRs(responseBody).c_str());
} else {
printf("200 leave OK" ZT_EOL_S);
}
return 0;
} else {
printf("%u %s %s" ZT_EOL_S,scode,command.c_str(),responseBody.c_str());
return 1;
}
} else if (command == "set") {
if (arg1.length() != 16) {
cliPrintHelp(argv[0],stderr);
return 2;
}
std::size_t eqidx = arg2.find('=');
if (eqidx != std::string::npos) {
if ((arg2.substr(0,eqidx) == "allowManaged")||(arg2.substr(0,eqidx) == "allowGlobal")||(arg2.substr(0,eqidx) == "allowDefault")) {
char jsons[1024];
Utils::snprintf(jsons,sizeof(jsons),"{\"%s\":%s}",
arg2.substr(0,eqidx).c_str(),
(((arg2.substr(eqidx,2) == "=t")||(arg2.substr(eqidx,2) == "=1")) ? "true" : "false"));
char cl[128];
Utils::snprintf(cl,sizeof(cl),"%u",(unsigned int)strlen(jsons));
requestHeaders["Content-Type"] = "application/json";
requestHeaders["Content-Length"] = cl;
unsigned int scode = Http::POST(
1024 * 1024 * 16,
60000,
(const struct sockaddr *)&addr,
(std::string("/network/") + arg1).c_str(),
requestHeaders,
jsons,
strlen(jsons),
responseHeaders,
responseBody);
if (scode == 200) {
printf("%s",cliFixJsonCRs(responseBody).c_str());
return 0;
} else {
printf("%u %s %s" ZT_EOL_S,scode,command.c_str(),responseBody.c_str());
return 1;
}
}
} else {
cliPrintHelp(argv[0],stderr);
return 2;
}
} else {
cliPrintHelp(argv[0],stderr);
return 0;
}
return 0;
}
/****************************************************************************/
/* zerotier-idtool personality */
/****************************************************************************/
static void idtoolPrintHelp(FILE *out,const char *pn)
{
fprintf(out,
"%s version %d.%d.%d" ZT_EOL_S,
PROGRAM_NAME,
ZEROTIER_ONE_VERSION_MAJOR, ZEROTIER_ONE_VERSION_MINOR, ZEROTIER_ONE_VERSION_REVISION);
fprintf(out,
COPYRIGHT_NOTICE ZT_EOL_S
LICENSE_GRANT ZT_EOL_S);
fprintf(out,"Usage: %s <command> [<args>]" ZT_EOL_S"" ZT_EOL_S"Commands:" ZT_EOL_S,pn);
fprintf(out," generate [<identity.secret>] [<identity.public>] [<vanity>]" ZT_EOL_S);
fprintf(out," validate <identity.secret/public>" ZT_EOL_S);
fprintf(out," getpublic <identity.secret>" ZT_EOL_S);
fprintf(out," sign <identity.secret> <file>" ZT_EOL_S);
fprintf(out," verify <identity.secret/public> <file> <signature>" ZT_EOL_S);
fprintf(out," mkcom <identity.secret> [<id,value,maxDelta> ...] (hexadecimal integers)" ZT_EOL_S);
}
static Identity getIdFromArg(char *arg)
{
Identity id;
if ((strlen(arg) > 32)&&(arg[10] == ':')) { // identity is a literal on the command line
if (id.fromString(arg))
return id;
} else { // identity is to be read from a file
std::string idser;
if (OSUtils::readFile(arg,idser)) {
if (id.fromString(idser))
return id;
}
}
return Identity();
}
#ifdef __WINDOWS__
static int idtool(int argc, _TCHAR* argv[])
#else
static int idtool(int argc,char **argv)
#endif
{
if (argc < 2) {
idtoolPrintHelp(stdout,argv[0]);
return 1;
}
if (!strcmp(argv[1],"generate")) {
uint64_t vanity = 0;
int vanityBits = 0;
if (argc >= 5) {
vanity = Utils::hexStrToU64(argv[4]) & 0xffffffffffULL;
vanityBits = 4 * strlen(argv[4]);
if (vanityBits > 40)
vanityBits = 40;
}
Identity id;
for(;;) {
id.generate();
if ((id.address().toInt() >> (40 - vanityBits)) == vanity) {
if (vanityBits > 0) {
fprintf(stderr,"vanity address: found %.10llx !\n",(unsigned long long)id.address().toInt());
}
break;
} else {
fprintf(stderr,"vanity address: tried %.10llx looking for first %d bits of %.10llx\n",(unsigned long long)id.address().toInt(),vanityBits,(unsigned long long)(vanity << (40 - vanityBits)));
}
}
std::string idser = id.toString(true);
if (argc >= 3) {
if (!OSUtils::writeFile(argv[2],idser)) {
fprintf(stderr,"Error writing to %s" ZT_EOL_S,argv[2]);
return 1;
} else printf("%s written" ZT_EOL_S,argv[2]);
if (argc >= 4) {
idser = id.toString(false);
if (!OSUtils::writeFile(argv[3],idser)) {
fprintf(stderr,"Error writing to %s" ZT_EOL_S,argv[3]);
return 1;
} else printf("%s written" ZT_EOL_S,argv[3]);
}
} else printf("%s",idser.c_str());
} else if (!strcmp(argv[1],"validate")) {
if (argc < 3) {
idtoolPrintHelp(stdout,argv[0]);
return 1;
}
Identity id = getIdFromArg(argv[2]);
if (!id) {
fprintf(stderr,"Identity argument invalid or file unreadable: %s" ZT_EOL_S,argv[2]);
return 1;
}
if (!id.locallyValidate()) {
fprintf(stderr,"%s FAILED validation." ZT_EOL_S,argv[2]);
return 1;
} else printf("%s is a valid identity" ZT_EOL_S,argv[2]);
} else if (!strcmp(argv[1],"getpublic")) {
if (argc < 3) {
idtoolPrintHelp(stdout,argv[0]);
return 1;
}
Identity id = getIdFromArg(argv[2]);
if (!id) {
fprintf(stderr,"Identity argument invalid or file unreadable: %s" ZT_EOL_S,argv[2]);
return 1;
}
printf("%s",id.toString(false).c_str());
} else if (!strcmp(argv[1],"sign")) {
if (argc < 4) {
idtoolPrintHelp(stdout,argv[0]);
return 1;
}
Identity id = getIdFromArg(argv[2]);
if (!id) {
fprintf(stderr,"Identity argument invalid or file unreadable: %s" ZT_EOL_S,argv[2]);
return 1;
}
if (!id.hasPrivate()) {
fprintf(stderr,"%s does not contain a private key (must use private to sign)" ZT_EOL_S,argv[2]);
return 1;
}
std::string inf;
if (!OSUtils::readFile(argv[3],inf)) {
fprintf(stderr,"%s is not readable" ZT_EOL_S,argv[3]);
return 1;
}
C25519::Signature signature = id.sign(inf.data(),(unsigned int)inf.length());
printf("%s",Utils::hex(signature.data,(unsigned int)signature.size()).c_str());
} else if (!strcmp(argv[1],"verify")) {
if (argc < 4) {
idtoolPrintHelp(stdout,argv[0]);
return 1;
}
Identity id = getIdFromArg(argv[2]);
if (!id) {
fprintf(stderr,"Identity argument invalid or file unreadable: %s" ZT_EOL_S,argv[2]);
return 1;
}
std::string inf;
if (!OSUtils::readFile(argv[3],inf)) {
fprintf(stderr,"%s is not readable" ZT_EOL_S,argv[3]);
return 1;
}
std::string signature(Utils::unhex(argv[4]));
if ((signature.length() > ZT_ADDRESS_LENGTH)&&(id.verify(inf.data(),(unsigned int)inf.length(),signature.data(),(unsigned int)signature.length()))) {
printf("%s signature valid" ZT_EOL_S,argv[3]);
} else {
fprintf(stderr,"%s signature check FAILED" ZT_EOL_S,argv[3]);
return 1;
}
} else if (!strcmp(argv[1],"mkcom")) {
if (argc < 3) {
idtoolPrintHelp(stdout,argv[0]);
return 1;
}
Identity id = getIdFromArg(argv[2]);
if ((!id)||(!id.hasPrivate())) {
fprintf(stderr,"Identity argument invalid, does not include private key, or file unreadable: %s" ZT_EOL_S,argv[2]);
return 1;
}
CertificateOfMembership com;
for(int a=3;a<argc;++a) {
std::vector<std::string> params(Utils::split(argv[a],",","",""));
if (params.size() == 3) {
uint64_t qId = Utils::hexStrToU64(params[0].c_str());
uint64_t qValue = Utils::hexStrToU64(params[1].c_str());
uint64_t qMaxDelta = Utils::hexStrToU64(params[2].c_str());
com.setQualifier(qId,qValue,qMaxDelta);
}
}
if (!com.sign(id)) {
fprintf(stderr,"Signature of certificate of membership failed." ZT_EOL_S);
return 1;
}
printf("%s",com.toString().c_str());
} else {
idtoolPrintHelp(stdout,argv[0]);
return 1;
}
return 0;
}
/****************************************************************************/
/* Unix helper functions and signal handlers */
/****************************************************************************/
#ifdef __UNIX_LIKE__
static void _sighandlerHup(int sig)
{
}
static void _sighandlerQuit(int sig)
{
OneService *s = zt1Service;
if (s)
s->terminate();
else exit(0);
}
#endif
/****************************************************************************/
/* Windows helper functions and signal handlers */
/****************************************************************************/
#ifdef __WINDOWS__
// Console signal handler routine to allow CTRL+C to work, mostly for testing
static BOOL WINAPI _winConsoleCtrlHandler(DWORD dwCtrlType)
{
switch(dwCtrlType) {
case CTRL_C_EVENT:
case CTRL_BREAK_EVENT:
case CTRL_CLOSE_EVENT:
case CTRL_SHUTDOWN_EVENT:
OneService *s = zt1Service;
if (s)
s->terminate();
return TRUE;
}
return FALSE;
}
static void _winPokeAHole()
{
char myPath[MAX_PATH];
DWORD ps = GetModuleFileNameA(NULL,myPath,sizeof(myPath));
if ((ps > 0)&&(ps < (DWORD)sizeof(myPath))) {
STARTUPINFOA startupInfo;
PROCESS_INFORMATION processInfo;
startupInfo.cb = sizeof(startupInfo);
memset(&startupInfo,0,sizeof(STARTUPINFOA));
memset(&processInfo,0,sizeof(PROCESS_INFORMATION));
if (CreateProcessA(NULL,(LPSTR)(std::string("C:\\Windows\\System32\\netsh.exe advfirewall firewall delete rule name=\"ZeroTier One\" program=\"") + myPath + "\"").c_str(),NULL,NULL,FALSE,CREATE_NO_WINDOW,NULL,NULL,&startupInfo,&processInfo)) {
WaitForSingleObject(processInfo.hProcess,INFINITE);
CloseHandle(processInfo.hProcess);
CloseHandle(processInfo.hThread);
}
startupInfo.cb = sizeof(startupInfo);
memset(&startupInfo,0,sizeof(STARTUPINFOA));
memset(&processInfo,0,sizeof(PROCESS_INFORMATION));
if (CreateProcessA(NULL,(LPSTR)(std::string("C:\\Windows\\System32\\netsh.exe advfirewall firewall add rule name=\"ZeroTier One\" dir=in action=allow program=\"") + myPath + "\" enable=yes").c_str(),NULL,NULL,FALSE,CREATE_NO_WINDOW,NULL,NULL,&startupInfo,&processInfo)) {
WaitForSingleObject(processInfo.hProcess,INFINITE);
CloseHandle(processInfo.hProcess);
CloseHandle(processInfo.hThread);
}
startupInfo.cb = sizeof(startupInfo);
memset(&startupInfo,0,sizeof(STARTUPINFOA));
memset(&processInfo,0,sizeof(PROCESS_INFORMATION));
if (CreateProcessA(NULL,(LPSTR)(std::string("C:\\Windows\\System32\\netsh.exe advfirewall firewall add rule name=\"ZeroTier One\" dir=out action=allow program=\"") + myPath + "\" enable=yes").c_str(),NULL,NULL,FALSE,CREATE_NO_WINDOW,NULL,NULL,&startupInfo,&processInfo)) {
WaitForSingleObject(processInfo.hProcess,INFINITE);
CloseHandle(processInfo.hProcess);
CloseHandle(processInfo.hThread);
}
}
}
// Returns true if this is running as the local administrator
static BOOL IsCurrentUserLocalAdministrator(void)
{
BOOL fReturn = FALSE;
DWORD dwStatus;
DWORD dwAccessMask;
DWORD dwAccessDesired;
DWORD dwACLSize;
DWORD dwStructureSize = sizeof(PRIVILEGE_SET);
PACL pACL = NULL;
PSID psidAdmin = NULL;
HANDLE hToken = NULL;
HANDLE hImpersonationToken = NULL;
PRIVILEGE_SET ps;
GENERIC_MAPPING GenericMapping;
PSECURITY_DESCRIPTOR psdAdmin = NULL;
SID_IDENTIFIER_AUTHORITY SystemSidAuthority = SECURITY_NT_AUTHORITY;
const DWORD ACCESS_READ = 1;
const DWORD ACCESS_WRITE = 2;
__try
{
if (!OpenThreadToken(GetCurrentThread(), TOKEN_DUPLICATE|TOKEN_QUERY,TRUE,&hToken))
{
if (GetLastError() != ERROR_NO_TOKEN)
__leave;
if (!OpenProcessToken(GetCurrentProcess(),TOKEN_DUPLICATE|TOKEN_QUERY, &hToken))
__leave;
}
if (!DuplicateToken (hToken, SecurityImpersonation,&hImpersonationToken))
__leave;
if (!AllocateAndInitializeSid(&SystemSidAuthority, 2,
SECURITY_BUILTIN_DOMAIN_RID,
DOMAIN_ALIAS_RID_ADMINS,
0, 0, 0, 0, 0, 0, &psidAdmin))
__leave;
psdAdmin = LocalAlloc(LPTR, SECURITY_DESCRIPTOR_MIN_LENGTH);
if (psdAdmin == NULL)
__leave;
if (!InitializeSecurityDescriptor(psdAdmin,SECURITY_DESCRIPTOR_REVISION))
__leave;
dwACLSize = sizeof(ACL) + sizeof(ACCESS_ALLOWED_ACE) + GetLengthSid(psidAdmin) - sizeof(DWORD);
pACL = (PACL)LocalAlloc(LPTR, dwACLSize);
if (pACL == NULL)
__leave;
if (!InitializeAcl(pACL, dwACLSize, ACL_REVISION2))
__leave;
dwAccessMask= ACCESS_READ | ACCESS_WRITE;
if (!AddAccessAllowedAce(pACL, ACL_REVISION2, dwAccessMask, psidAdmin))
__leave;
if (!SetSecurityDescriptorDacl(psdAdmin, TRUE, pACL, FALSE))
__leave;
SetSecurityDescriptorGroup(psdAdmin, psidAdmin, FALSE);
SetSecurityDescriptorOwner(psdAdmin, psidAdmin, FALSE);
if (!IsValidSecurityDescriptor(psdAdmin))
__leave;
dwAccessDesired = ACCESS_READ;
GenericMapping.GenericRead = ACCESS_READ;
GenericMapping.GenericWrite = ACCESS_WRITE;
GenericMapping.GenericExecute = 0;
GenericMapping.GenericAll = ACCESS_READ | ACCESS_WRITE;
if (!AccessCheck(psdAdmin, hImpersonationToken, dwAccessDesired,
&GenericMapping, &ps, &dwStructureSize, &dwStatus,
&fReturn))
{
fReturn = FALSE;
__leave;
}
}
__finally
{
// Clean up.
if (pACL) LocalFree(pACL);
if (psdAdmin) LocalFree(psdAdmin);
if (psidAdmin) FreeSid(psidAdmin);
if (hImpersonationToken) CloseHandle (hImpersonationToken);
if (hToken) CloseHandle (hToken);
}
return fReturn;
}
#endif // __WINDOWS__
/****************************************************************************/
/* main() and friends */
/****************************************************************************/
static void printHelp(const char *cn,FILE *out)
{
fprintf(out,
"%s version %d.%d.%d" ZT_EOL_S,
PROGRAM_NAME,
ZEROTIER_ONE_VERSION_MAJOR, ZEROTIER_ONE_VERSION_MINOR, ZEROTIER_ONE_VERSION_REVISION);
fprintf(out,
COPYRIGHT_NOTICE ZT_EOL_S
LICENSE_GRANT ZT_EOL_S);
std::string updateUrl(OneService::autoUpdateUrl());
if (updateUrl.length())
fprintf(out,"Automatic updates enabled:" ZT_EOL_S" %s" ZT_EOL_S" (all updates are securely authenticated by 256-bit ECDSA signature)" ZT_EOL_S"" ZT_EOL_S,updateUrl.c_str());
fprintf(out,"Usage: %s [-switches] [home directory]" ZT_EOL_S"" ZT_EOL_S,cn);
fprintf(out,"Available switches:" ZT_EOL_S);
fprintf(out," -h - Display this help" ZT_EOL_S);
fprintf(out," -v - Show version" ZT_EOL_S);
fprintf(out," -U - Run as unprivileged user (skip privilege check)" ZT_EOL_S);
fprintf(out," -p<port> - Port for UDP and TCP/HTTP (default: 9993, 0 for random)" ZT_EOL_S);
#ifdef __UNIX_LIKE__
fprintf(out," -d - Fork and run as daemon (Unix-ish OSes)" ZT_EOL_S);
#endif // __UNIX_LIKE__
#ifdef __WINDOWS__
fprintf(out," -C - Run from command line instead of as service (Windows)" ZT_EOL_S);
fprintf(out," -I - Install Windows service (Windows)" ZT_EOL_S);
fprintf(out," -R - Uninstall Windows service (Windows)" ZT_EOL_S);
fprintf(out," -D - Remove all instances of Windows tap device (Windows)" ZT_EOL_S);
#endif // __WINDOWS__
fprintf(out," -i - Generate and manage identities (zerotier-idtool)" ZT_EOL_S);
fprintf(out," -q - Query API (zerotier-cli)" ZT_EOL_S);
}
#ifdef __WINDOWS__
int _tmain(int argc, _TCHAR* argv[])
#else
int main(int argc,char **argv)
#endif
{
#ifdef __UNIX_LIKE__
signal(SIGHUP,&_sighandlerHup);
signal(SIGPIPE,SIG_IGN);
signal(SIGUSR1,SIG_IGN);
signal(SIGUSR2,SIG_IGN);
signal(SIGALRM,SIG_IGN);
signal(SIGINT,&_sighandlerQuit);
signal(SIGTERM,&_sighandlerQuit);
signal(SIGQUIT,&_sighandlerQuit);
/* Ensure that there are no inherited file descriptors open from a previous
* incarnation. This is a hack to ensure that GitHub issue #61 or variants
* of it do not return, and should not do anything otherwise bad. */
{
int mfd = STDIN_FILENO;
if (STDOUT_FILENO > mfd) mfd = STDOUT_FILENO;
if (STDERR_FILENO > mfd) mfd = STDERR_FILENO;
for(int f=mfd+1;f<1024;++f)
::close(f);
}
bool runAsDaemon = false;
#endif // __UNIX_LIKE__
#ifdef __WINDOWS__
{
WSADATA wsaData;
WSAStartup(MAKEWORD(2,2),&wsaData);
}
#ifdef ZT_WIN_RUN_IN_CONSOLE
bool winRunFromCommandLine = true;
#else
bool winRunFromCommandLine = false;
#endif
#endif // __WINDOWS__
if ((strstr(argv[0],"zerotier-idtool"))||(strstr(argv[0],"ZEROTIER-IDTOOL")))
return idtool(argc,argv);
if ((strstr(argv[0],"zerotier-cli"))||(strstr(argv[0],"ZEROTIER-CLI")))
return cli(argc,argv);
std::string homeDir;
unsigned int port = ZT_DEFAULT_PORT;
bool skipRootCheck = false;
for(int i=1;i<argc;++i) {
if (argv[i][0] == '-') {
switch(argv[i][1]) {
case 'p': // port -- for both UDP and TCP, packets and control plane
port = Utils::strToUInt(argv[i] + 2);
if (port > 0xffff) {
printHelp(argv[0],stdout);
return 1;
}
break;
#ifdef __UNIX_LIKE__
case 'd': // Run in background as daemon
runAsDaemon = true;
break;
#endif // __UNIX_LIKE__
case 'U':
skipRootCheck = true;
break;
case 'v': // Display version
printf("%d.%d.%d" ZT_EOL_S,ZEROTIER_ONE_VERSION_MAJOR,ZEROTIER_ONE_VERSION_MINOR,ZEROTIER_ONE_VERSION_REVISION);
return 0;
case 'i': // Invoke idtool personality
if (argv[i][2]) {
printHelp(argv[0],stdout);
return 0;
} else return idtool(argc,argv);
case 'q': // Invoke cli personality
if (argv[i][2]) {
printHelp(argv[0],stdout);
return 0;
} else return cli(argc,argv);
#ifdef __WINDOWS__
case 'C': // Run from command line instead of as Windows service
winRunFromCommandLine = true;
break;
case 'I': { // Install this binary as a Windows service
if (IsCurrentUserLocalAdministrator() != TRUE) {
fprintf(stderr,"%s: must be run as a local administrator." ZT_EOL_S,argv[0]);
return 1;
}
std::string ret(InstallService(ZT_SERVICE_NAME,ZT_SERVICE_DISPLAY_NAME,ZT_SERVICE_START_TYPE,ZT_SERVICE_DEPENDENCIES,ZT_SERVICE_ACCOUNT,ZT_SERVICE_PASSWORD));
if (ret.length()) {
fprintf(stderr,"%s: unable to install service: %s" ZT_EOL_S,argv[0],ret.c_str());
return 3;
}
return 0;
} break;
case 'R': { // Uninstall this binary as Windows service
if (IsCurrentUserLocalAdministrator() != TRUE) {
fprintf(stderr,"%s: must be run as a local administrator." ZT_EOL_S,argv[0]);
return 1;
}
std::string ret(UninstallService(ZT_SERVICE_NAME));
if (ret.length()) {
fprintf(stderr,"%s: unable to uninstall service: %s" ZT_EOL_S,argv[0],ret.c_str());
return 3;
}
return 0;
} break;
case 'D': {
std::string err = WindowsEthernetTap::destroyAllPersistentTapDevices();
if (err.length() > 0) {
fprintf(stderr,"%s: unable to uninstall one or more persistent tap devices: %s" ZT_EOL_S,argv[0],err.c_str());
return 3;
}
return 0;
} break;
#endif // __WINDOWS__
case 'h':
case '?':
default:
printHelp(argv[0],stdout);
return 0;
}
} else {
if (homeDir.length()) {
printHelp(argv[0],stdout);
return 0;
} else {
homeDir = argv[i];
}
}
}
if (!homeDir.length())
homeDir = OneService::platformDefaultHomePath();
if (!homeDir.length()) {
fprintf(stderr,"%s: no home path specified and no platform default available" ZT_EOL_S,argv[0]);
return 1;
} else {
std::vector<std::string> hpsp(Utils::split(homeDir.c_str(),ZT_PATH_SEPARATOR_S,"",""));
std::string ptmp;
if (homeDir[0] == ZT_PATH_SEPARATOR)
ptmp.push_back(ZT_PATH_SEPARATOR);
for(std::vector<std::string>::iterator pi(hpsp.begin());pi!=hpsp.end();++pi) {
if (ptmp.length() > 0)
ptmp.push_back(ZT_PATH_SEPARATOR);
ptmp.append(*pi);
if ((*pi != ".")&&(*pi != "..")) {
if (!OSUtils::mkdir(ptmp))
throw std::runtime_error("home path does not exist, and could not create");
}
}
}
// This can be removed once the new controller code has been around for many versions
if (OSUtils::fileExists((homeDir + ZT_PATH_SEPARATOR_S + "controller.db").c_str(),true)) {
fprintf(stderr,"%s: FATAL: an old controller.db exists in %s -- see instructions in controller/README.md for how to migrate!" ZT_EOL_S,argv[0],homeDir.c_str());
return 1;
}
#ifdef __UNIX_LIKE__
#ifndef ZT_ONE_NO_ROOT_CHECK
if ((!skipRootCheck)&&(getuid() != 0)) {
fprintf(stderr,"%s: must be run as root (uid 0)" ZT_EOL_S,argv[0]);
return 1;
}
#endif // !ZT_ONE_NO_ROOT_CHECK
if (runAsDaemon) {
long p = (long)fork();
if (p < 0) {
fprintf(stderr,"%s: could not fork" ZT_EOL_S,argv[0]);
return 1;
} else if (p > 0)
return 0; // forked
// else p == 0, so we are daemonized
}
#endif // __UNIX_LIKE__
#ifdef __WINDOWS__
// Uninstall legacy tap devices. New devices will automatically be installed and configured
// when tap instances are created.
WindowsEthernetTap::destroyAllLegacyPersistentTapDevices();
if (winRunFromCommandLine) {
// Running in "interactive" mode (mostly for debugging)
if (IsCurrentUserLocalAdministrator() != TRUE) {
if (!skipRootCheck) {
fprintf(stderr,"%s: must be run as a local administrator." ZT_EOL_S,argv[0]);
return 1;
}
} else {
_winPokeAHole();
}
SetConsoleCtrlHandler(&_winConsoleCtrlHandler,TRUE);
// continues on to ordinary command line execution code below...
} else {
// Running from service manager
_winPokeAHole();
ZeroTierOneService zt1Service;
if (CServiceBase::Run(zt1Service) == TRUE) {
return 0;
} else {
fprintf(stderr,"%s: unable to start service (try -h for help)" ZT_EOL_S,argv[0]);
return 1;
}
}
#endif // __WINDOWS__
#ifdef __UNIX_LIKE__
std::string pidPath(homeDir + ZT_PATH_SEPARATOR_S + ZT_PID_PATH);
{
// Write .pid file to home folder
FILE *pf = fopen(pidPath.c_str(),"w");
if (pf) {
fprintf(pf,"%ld",(long)getpid());
fclose(pf);
}
}
#endif // __UNIX_LIKE__
unsigned int returnValue = 0;
for(;;) {
zt1Service = OneService::newInstance(homeDir.c_str(),port);
switch(zt1Service->run()) {
case OneService::ONE_STILL_RUNNING: // shouldn't happen, run() won't return until done
case OneService::ONE_NORMAL_TERMINATION:
break;
case OneService::ONE_UNRECOVERABLE_ERROR:
fprintf(stderr,"%s: fatal error: %s" ZT_EOL_S,argv[0],zt1Service->fatalErrorMessage().c_str());
returnValue = 1;
break;
case OneService::ONE_IDENTITY_COLLISION: {
delete zt1Service;
zt1Service = (OneService *)0;
std::string oldid;
OSUtils::readFile((homeDir + ZT_PATH_SEPARATOR_S + "identity.secret").c_str(),oldid);
if (oldid.length()) {
OSUtils::writeFile((homeDir + ZT_PATH_SEPARATOR_S + "identity.secret.saved_after_collision").c_str(),oldid);
OSUtils::rm((homeDir + ZT_PATH_SEPARATOR_S + "identity.secret").c_str());
OSUtils::rm((homeDir + ZT_PATH_SEPARATOR_S + "identity.public").c_str());
}
} continue; // restart!
}
break; // terminate loop -- normally we don't keep restarting
}
delete zt1Service;
zt1Service = (OneService *)0;
#ifdef __UNIX_LIKE__
OSUtils::rm(pidPath.c_str());
#endif
return returnValue;
}