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MeshCentral/agents/modules_meshcmd/serviceManager.js

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JavaScript
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function parseServiceStatus(token) {
var j = {};
var serviceType = token.Deref(0, 4).IntVal;
j.isFileSystemDriver = ((serviceType & 0x00000002) == 0x00000002);
j.isKernelDriver = ((serviceType & 0x00000001) == 0x00000001);
j.isSharedProcess = ((serviceType & 0x00000020) == 0x00000020);
j.isOwnProcess = ((serviceType & 0x00000010) == 0x00000010);
j.isInteractive = ((serviceType & 0x00000100) == 0x00000100);
switch (token.Deref((1 * 4), 4).toBuffer().readUInt32LE()) {
case 0x00000005:
j.state = 'CONTINUE_PENDING';
break;
case 0x00000006:
j.state = 'PAUSE_PENDING';
break;
case 0x00000007:
j.state = 'PAUSED';
break;
case 0x00000004:
j.state = 'RUNNING';
break;
case 0x00000002:
j.state = 'START_PENDING';
break;
case 0x00000003:
j.state = 'STOP_PENDING';
break;
case 0x00000001:
j.state = 'STOPPED';
break;
}
var controlsAccepted = token.Deref((2 * 4), 4).toBuffer().readUInt32LE();
j.controlsAccepted = [];
if ((controlsAccepted & 0x00000010) == 0x00000010) {
j.controlsAccepted.push('SERVICE_CONTROL_NETBINDADD');
j.controlsAccepted.push('SERVICE_CONTROL_NETBINDREMOVE');
j.controlsAccepted.push('SERVICE_CONTROL_NETBINDENABLE');
j.controlsAccepted.push('SERVICE_CONTROL_NETBINDDISABLE');
}
if ((controlsAccepted & 0x00000008) == 0x00000008) { j.controlsAccepted.push('SERVICE_CONTROL_PARAMCHANGE'); }
if ((controlsAccepted & 0x00000002) == 0x00000002) { j.controlsAccepted.push('SERVICE_CONTROL_PAUSE'); j.controlsAccepted.push('SERVICE_CONTROL_CONTINUE'); }
if ((controlsAccepted & 0x00000100) == 0x00000100) { j.controlsAccepted.push('SERVICE_CONTROL_PRESHUTDOWN'); }
if ((controlsAccepted & 0x00000004) == 0x00000004) { j.controlsAccepted.push('SERVICE_CONTROL_SHUTDOWN'); }
if ((controlsAccepted & 0x00000001) == 0x00000001) { j.controlsAccepted.push('SERVICE_CONTROL_STOP'); }
if ((controlsAccepted & 0x00000020) == 0x00000020) { j.controlsAccepted.push('SERVICE_CONTROL_HARDWAREPROFILECHANGE'); }
if ((controlsAccepted & 0x00000040) == 0x00000040) { j.controlsAccepted.push('SERVICE_CONTROL_POWEREVENT'); }
if ((controlsAccepted & 0x00000080) == 0x00000080) { j.controlsAccepted.push('SERVICE_CONTROL_SESSIONCHANGE'); }
j.pid = token.Deref((7 * 4), 4).toBuffer().readUInt32LE();
return (j);
}
function serviceManager() {
if (process.platform == 'win32') {
this.GM = require('_GenericMarshal');
this.proxy = this.GM.CreateNativeProxy('Advapi32.dll');
this.proxy.CreateMethod('OpenSCManagerA');
this.proxy.CreateMethod('EnumServicesStatusExA');
this.proxy.CreateMethod('OpenServiceA');
this.proxy.CreateMethod('QueryServiceStatusEx');
this.proxy.CreateMethod('ControlService');
this.proxy.CreateMethod('StartServiceA');
this.proxy.CreateMethod('CloseServiceHandle');
this.proxy.CreateMethod('CreateServiceA');
this.proxy.CreateMethod('ChangeServiceConfig2A');
this.proxy.CreateMethod('DeleteService');
this.proxy.CreateMethod('AllocateAndInitializeSid');
this.proxy.CreateMethod('CheckTokenMembership');
this.proxy.CreateMethod('FreeSid');
this.proxy2 = this.GM.CreateNativeProxy('Kernel32.dll');
this.proxy2.CreateMethod('GetLastError');
this.isAdmin = function isAdmin() {
var NTAuthority = this.GM.CreateVariable(6);
NTAuthority.toBuffer().writeInt8(5, 5);
var AdministratorsGroup = this.GM.CreatePointer();
var admin = false;
if (this.proxy.AllocateAndInitializeSid(NTAuthority, 2, 32, 544, 0, 0, 0, 0, 0, 0, AdministratorsGroup).Val != 0) {
var member = this.GM.CreateInteger();
if (this.proxy.CheckTokenMembership(0, AdministratorsGroup.Deref(), member).Val != 0) {
if (member.toBuffer().readUInt32LE() != 0) { admin = true; }
}
this.proxy.FreeSid(AdministratorsGroup.Deref());
}
return admin;
};
this.getServiceFolder = function getServiceFolder() {
var destinationFolder = null;
if (require('os').arch() == 'x64') {
// 64 bit Windows
if (this.GM.PointerSize == 4) {
// 32 Bit App
destinationFolder = process.env['ProgramFiles(x86)'];
} else {
// 64 bit App
destinationFolder = process.env['ProgramFiles'];
}
} else {
// 32 bit Windows
destinationFolder = process.env['ProgramFiles'];
}
return (destinationFolder + '\\Open Source\\MeshCmd');
};
this.enumerateService = function () {
var machineName = this.GM.CreatePointer();
var dbName = this.GM.CreatePointer();
var handle = this.proxy.OpenSCManagerA(0x00, 0x00, 0x0001 | 0x0004);
var bytesNeeded = this.GM.CreatePointer();
var servicesReturned = this.GM.CreatePointer();
var resumeHandle = this.GM.CreatePointer();
//var services = this.proxy.CreateVariable(262144);
var success = this.proxy.EnumServicesStatusExA(handle, 0, 0x00000030, 0x00000003, 0x00, 0x00, bytesNeeded, servicesReturned, resumeHandle, 0x00);
if (bytesNeeded.IntVal <= 0) { throw('Error enumerating services'); }
var sz = bytesNeeded.IntVal;
var services = this.GM.CreateVariable(sz);
this.proxy.EnumServicesStatusExA(handle, 0, 0x00000030, 0x00000003, services, sz, bytesNeeded, servicesReturned, resumeHandle, 0x00);
console.log("servicesReturned", servicesReturned.IntVal);
var ptrSize = dbName._size;
var blockSize = 36 + (2 * ptrSize);
blockSize += ((ptrSize - (blockSize % ptrSize)) % ptrSize);
var retVal = [];
for (var i = 0; i < servicesReturned.IntVal; ++i) {
var token = services.Deref(i * blockSize, blockSize);
var j = {};
j.name = token.Deref(0, ptrSize).Deref().String;
j.displayName = token.Deref(ptrSize, ptrSize).Deref().String;
j.status = parseServiceStatus(token.Deref(2 * ptrSize, 36));
retVal.push(j);
}
this.proxy.CloseServiceHandle(handle);
return (retVal);
}
this.getService = function (name) {
var serviceName = this.GM.CreateVariable(name);
var ptr = this.GM.CreatePointer();
var bytesNeeded = this.GM.CreateVariable(ptr._size);
var handle = this.proxy.OpenSCManagerA(0x00, 0x00, 0x0001 | 0x0004 | 0x0020 | 0x0010);
if (handle.Val == 0) { throw('Could not open ServiceManager'); }
var h = this.proxy.OpenServiceA(handle, serviceName, 0x0004 | 0x0020 | 0x0010 | 0x00010000);
if (h.Val != 0) {
var success = this.proxy.QueryServiceStatusEx(h, 0, 0, 0, bytesNeeded);
var status = this.GM.CreateVariable(bytesNeeded.toBuffer().readUInt32LE());
success = this.proxy.QueryServiceStatusEx(h, 0, status, status._size, bytesNeeded);
if (success != 0) {
retVal = {};
retVal.status = parseServiceStatus(status);
retVal._scm = handle;
retVal._service = h;
retVal._GM = this.GM;
retVal._proxy = this.proxy;
require('events').inherits(retVal);
retVal.on('~', function () { this._proxy.CloseServiceHandle(this); this._proxy.CloseServiceHandle(this._scm); });
retVal.name = name;
retVal.stop = function () {
if (this.status.state == 'RUNNING') {
var newstate = this._GM.CreateVariable(36);
var success = this._proxy.ControlService(this._service, 0x00000001, newstate);
if (success == 0) {
throw (this.name + '.stop() failed');
}
}
else {
throw ('Cannot call ' + this.name + '.stop(), when current state is: ' + this.status.state);
}
}
retVal.start = function () {
if (this.status.state == 'STOPPED') {
var success = this._proxy.StartServiceA(this._service, 0, 0);
if (success == 0) { throw (this.name + '.start() failed'); }
} else {
throw ('Cannot call ' + this.name + '.start(), when current state is: ' + this.status.state);
}
}
return (retVal);
} else {
}
}
this.proxy.CloseServiceHandle(handle);
throw ('Could not find service: ' + name);
}
}
this.installService = function installService(options) {
if (process.platform == 'win32') {
if (!this.isAdmin()) { throw ('Installing as Service, requires administrator permissions.'); }
// Before we start, we need to copy the binary to the right place
var folder = this.getServiceFolder();
if (!require('fs').existsSync(folder)) { require('fs').mkdirSync(folder); }
require('fs').copyFileSync(options.servicePath, folder + '\\' + options.name + '.exe');
options.servicePath = folder + '\\' + options.name + '.exe';
console.log('Installing to "' + options.servicePath + '"');
var servicePath = this.GM.CreateVariable('"' + options.servicePath + '"');
var handle = this.proxy.OpenSCManagerA(0x00, 0x00, 0x0002);
if (handle.Val == 0) { throw ('Error opening SCManager'); }
var serviceName = this.GM.CreateVariable(options.name);
var displayName = this.GM.CreateVariable(options.name);
var allAccess = 0x000F01FF;
var serviceType;
switch (options.startType) {
case 'BOOT_START':
serviceType = 0x00;
break;
case 'SYSTEM_START':
serviceType = 0x01;
break;
case 'AUTO_START':
serviceType = 0x02;
break;
case 'DEMAND_START':
serviceType = 0x03;
break;
default:
serviceType = 0x04; // Disabled
break;
}
var h = this.proxy.CreateServiceA(handle, serviceName, displayName, allAccess, 0x10 | 0x100, serviceType, 0, servicePath, 0, 0, 0, 0, 0);
if (h.Val == 0) { this.proxy.CloseServiceHandle(handle); throw ('Error Creating Service: ' + this.proxy2.GetLastError().Val); }
if (options.description) {
console.log(options.description);
var dscPtr = this.GM.CreatePointer();
dscPtr.Val = this.GM.CreateVariable(options.description);
if (this.proxy.ChangeServiceConfig2A(h, 1, dscPtr) == 0) {
this.proxy.CloseServiceHandle(h);
this.proxy.CloseServiceHandle(handle);
throw ('Unable to set description');
}
}
this.proxy.CloseServiceHandle(h);
this.proxy.CloseServiceHandle(handle);
return (this.getService(options.name));
}
if (process.platform == 'linux') {
switch (this.getServiceType()) {
case 'init':
require('fs').copyFileSync(options.servicePath, '/etc/init.d/' + options.name);
console.log('Copying ' + options.servicePath);
var m = require('fs').statSync('/etc/init.d/' + options.name).mode;
m |= (require('fs').CHMOD_MODES.S_IXUSR | require('fs').CHMOD_MODES.S_IXGRP);
require('fs').chmodSync('/etc/init.d/' + options.name, m);
this._update = require('child_process').execFile('/bin/sh', ['sh'], { type: require('child_process').SpawnTypes.TERM });
this._update._moduleName = options.name;
this._update.on('exit', function onUpdateRC_d() { console.log(this._moduleName + ' installed'); process.exit(); });
this._update.stdout.on('data', function (chunk) { });
this._update.stdin.write('update-rc.d ' + options.name + ' defaults\n');
this._update.stdin.write('exit\n');
//update-rc.d meshagent defaults # creates symlinks for rc.d
//service meshagent start
break;
case 'systemd':
var serviceDescription = options.description ? options.description : 'MeshCentral Agent';
if (!require('fs').existsSync('/usr/local/mesh')) { require('fs').mkdirSync('/usr/local/mesh'); }
require('fs').copyFileSync(options.servicePath, '/usr/local/mesh/' + options.name);
var m = require('fs').statSync('/usr/local/mesh/' + options.name).mode;
m |= (require('fs').CHMOD_MODES.S_IXUSR | require('fs').CHMOD_MODES.S_IXGRP);
require('fs').chmodSync('/usr/local/mesh/' + options.name, m);
require('fs').writeFileSync('/lib/systemd/system/' + options.name + '.service', '[Unit]\nDescription=' + serviceDescription + '\n[Service]\nExecStart=/usr/local/mesh/' + options.name + '\nStandardOutput=null\nRestart=always\nRestartSec=3\n[Install]\nWantedBy=multi-user.target\nAlias=' + options.name + '.service\n', { flags: 'w' });
this._update = require('child_process').execFile('/bin/sh', ['sh'], { type: require('child_process').SpawnTypes.TERM });
this._update._moduleName = options.name;
this._update.on('exit', function onUpdateRC_d() { console.log(this._moduleName + ' installed'); process.exit(); });
this._update.stdout.on('data', function (chunk) { });
this._update.stdin.write('systemctl enable ' + options.name + '.service\n');
this._update.stdin.write('exit\n');
break;
default: // unknown platform service type
break;
}
}
}
this.uninstallService = function uninstallService(name) {
if (typeof (name) == 'object') { name = name.name; }
if (process.platform == 'win32') {
if (!this.isAdmin()) { throw ('Uninstalling a service, requires administrator permissions.'); }
var service = this.getService(name);
if (service.status.state == undefined || service.status.state == 'STOPPED') {
if (this.proxy.DeleteService(service._service) == 0) {
throw ('Uninstall Service for: ' + name + ', failed with error: ' + this.proxy2.GetLastError());
} else {
try { require('fs').unlinkSync(this.getServiceFolder() + '\\' + name + '.exe'); } catch (e) { }
}
}
else {
throw ('Cannot uninstall service: ' + name + ', because it is: ' + service.status.state);
}
}
else if (process.platform == 'linux') {
switch (this.getServiceType()) {
case 'init':
this._update = require('child_process').execFile('/bin/sh', ['sh'], { type: require('child_process').SpawnTypes.TERM });
this._update._svcname = name;
this._update.on('exit', function onUninstallExit() {
try {
require('fs').unlinkSync('/etc/init.d/' + this._svcname);
console.log(this._svcname + ' uninstalled');
} catch (e) { console.log(this._svcname + ' could not be uninstalled'); }
process.exit();
});
this._update.stdout.on('data', function (chunk) { });
this._update.stdin.write('service ' + name + ' stop\n');
this._update.stdin.write('update-rc.d -f ' + name + ' remove\n');
this._update.stdin.write('exit\n');
break;
case 'systemd':
this._update = require('child_process').execFile('/bin/sh', ['sh'], { type: require('child_process').SpawnTypes.TERM });
this._update._svcname = name;
this._update.on('exit', function onUninstallExit() {
try {
require('fs').unlinkSync('/usr/local/mesh/' + this._svcname);
require('fs').unlinkSync('/lib/systemd/system/' + this._svcname + '.service');
console.log(this._svcname + ' uninstalled');
} catch (e) { console.log(this._svcname + ' could not be uninstalled'); }
process.exit();
});
this._update.stdout.on('data', function (chunk) { });
this._update.stdin.write('systemctl stop ' + name + '.service\n');
this._update.stdin.write('systemctl disable ' + name + '.service\n');
this._update.stdin.write('exit\n');
break;
default: // unknown platform service type
break;
}
}
}
if (process.platform == 'linux') {
this.getServiceType = function getServiceType() {
return (require('processManager').getProcessInfo(1).Name);
};
}
}
module.exports = serviceManager;
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