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MeshCentral/certoperations.js
Ylian Saint-Hilaire f7dc1d749b Added 'keepcerts' option to force keeping HTTPS/MPS cert.
2022-08-26 15:43:12 -07:00

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/**
* @description Certificate generator
* @author Joko Sastriawan / Ylian Saint-Hilaire
* @copyright Intel Corporation 2018-2022
* @license Apache-2.0
* @version v0.0.1
*/
/*xjslint node: true */
/*xjslint plusplus: true */
/*xjslint maxlen: 256 */
/*jshint node: true */
/*jshint strict: false */
/*jshint esversion: 6 */
"use strict";
module.exports.CertificateOperations = function (parent) {
var obj = {};
obj.parent = parent;
obj.fs = require('fs');
obj.forge = require('node-forge');
obj.crypto = require('crypto');
obj.tls = require('tls');
obj.pki = obj.forge.pki;
obj.dirExists = function (filePath) { try { return obj.fs.statSync(filePath).isDirectory(); } catch (err) { return false; } };
obj.getFilesizeInBytes = function (filename) { try { return obj.fs.statSync(filename).size; } catch (err) { return -1; } };
const TopLevelDomainExtendedSupport = { 'net': 2, 'com': 2, 'arpa': 3, 'org': 2, 'gov': 2, 'edu': 2, 'de': 2, 'fr': 3, 'cn': 3, 'nl': 3, 'br': 3, 'mx': 3, 'uk': 3, 'pl': 3, 'tw': 3, 'ca': 3, 'fi': 3, 'be': 3, 'ru': 3, 'se': 3, 'ch': 2, 'dk': 2, 'ar': 3, 'es': 3, 'no': 3, 'at': 3, 'in': 3, 'tr': 3, 'cz': 2, 'ro': 3, 'hu': 3, 'nz': 3, 'pt': 3, 'il': 3, 'gr': 3, 'co': 3, 'ie': 3, 'za': 3, 'th': 3, 'sg': 3, 'hk': 3, 'cl': 2, 'lt': 3, 'id': 3, 'hr': 3, 'ee': 3, 'bg': 3, 'ua': 2 };
// Return true if the trusted FQDN matched the certificate common name
function checkAcmActivationCertName(commonName, trustedFqdn) {
commonName = commonName.toLowerCase();
trustedFqdn = trustedFqdn.toLowerCase();
if (commonName.startsWith('*.') && (commonName.length > 2)) { commonName = commonName.substring(2); }
return ((commonName == trustedFqdn) || (trustedFqdn.endsWith('.' + commonName)));
}
// Sign a Intel AMT TLS ACM activation request
obj.getAcmCertChain = function (domain, fqdn, hash) {
if ((domain == null) || (domain.amtacmactivation == null) || (domain.amtacmactivation.certs == null) || (fqdn == null) || (hash == null)) return { action: 'acmactivate', error: 1, errorText: 'Invalid arguments' };
if (parent.common.validateString(fqdn, 4, 256) == false) return { action: 'acmactivate', error: 1, errorText: "Invalid FQDN argument." };
if (parent.common.validateString(hash, 16, 256) == false) return { action: 'acmactivate', error: 1, errorText: "Invalid hash argument." };
// Look for the signing certificate
var signkey = null, certChain = null, hashAlgo = null, certIndex = null;
for (var i in domain.amtacmactivation.certs) {
const certEntry = domain.amtacmactivation.certs[i];
if ((certEntry.sha256 == hash) && ((certEntry.cn == '*') || checkAcmActivationCertName(certEntry.cn, fqdn))) { hashAlgo = 'sha256'; signkey = certEntry.key; certChain = certEntry.certs; certIndex = i; break; }
if ((certEntry.sha1 == hash) && ((certEntry.cn == '*') || checkAcmActivationCertName(certEntry.cn, fqdn))) { hashAlgo = 'sha1'; signkey = certEntry.key; certChain = certEntry.certs; certIndex = i; break; }
}
if (signkey == null) return { action: 'acmactivate', error: 2, errorText: "Can't create ACM cert chain, no signing certificate found." }; // Did not find a match.
// If the matching certificate our wildcard root cert, we can use the root to match any FQDN
if (domain.amtacmactivation.certs[certIndex].cn == '*') {
// Create a leaf certificate that matches the FQDN we want
// TODO: This is an expensive operation, work on ways to pre-generate or cache this leaf certificate.
var rootcert = { cert: domain.amtacmactivation.certs[certIndex].rootcert, key: obj.pki.privateKeyFromPem(domain.amtacmactivation.certs[certIndex].key) };
var leafcert = obj.IssueWebServerCertificate(rootcert, false, fqdn, 'mc', 'Intel(R) Client Setup Certificate', { serverAuth: true, '2.16.840.1.113741.1.2.3': true }, false);
// Setup the certificate chain and key
certChain = [ obj.pki.certificateToPem(leafcert.cert), obj.pki.certificateToPem(domain.amtacmactivation.certs[certIndex].rootcert) ];
signkey = obj.pki.privateKeyToPem(leafcert.key);
} else {
// Make sure the cert chain is in PEM format
var certChain2 = [];
for (var i in certChain) { certChain2.push("-----BEGIN CERTIFICATE-----\r\n" + certChain[i] + "\r\n-----END CERTIFICATE-----\r\n"); }
certChain = certChain2;
}
// Hash the leaf certificate and return the certificate chain and signing key
return { action: 'acmactivate', certs: certChain, signkey: signkey, hash384: obj.getCertHash(certChain[0]), hash256: obj.getCertHashSha256(certChain[0]) };
}
// Sign a Intel AMT ACM activation request
obj.signAcmRequest = function (domain, request, user, pass, ipport, nodeid, meshid, computerName, agentId) {
if ((domain == null) || (domain.amtacmactivation == null) || (domain.amtacmactivation.certs == null) || (request == null) || (request.nonce == null) || (request.realm == null) || (request.fqdn == null) || (request.hash == null)) return { 'action': 'acmactivate', 'error': 1, 'errorText': 'Invalid arguments' };
if (parent.common.validateString(request.nonce, 16, 256) == false) return { 'action': 'acmactivate', 'error': 1, 'errorText': "Invalid nonce argument." };
if (parent.common.validateString(request.realm, 16, 256) == false) return { 'action': 'acmactivate', 'error': 1, 'errorText': "Invalid realm argument." };
if (parent.common.validateString(request.fqdn, 4, 256) == false) return { 'action': 'acmactivate', 'error': 1, 'errorText': "Invalid FQDN argument." };
if (parent.common.validateString(request.hash, 16, 256) == false) return { 'action': 'acmactivate', 'error': 1, 'errorText': "Invalid hash argument." };
if (parent.common.validateString(request.uuid, 36, 36) == false) return { 'action': 'acmactivate', 'error': 1, 'errorText': "Invalid UUID argument." };
// Look for the signing certificate
var signkey = null, certChain = null, hashAlgo = null, certIndex = null;
for (var i in domain.amtacmactivation.certs) {
const certEntry = domain.amtacmactivation.certs[i];
if ((certEntry.sha256 == request.hash) && ((certEntry.cn == '*') || checkAcmActivationCertName(certEntry.cn, request.fqdn))) { hashAlgo = 'sha256'; signkey = certEntry.key; certChain = certEntry.certs; certIndex = i; break; }
if ((certEntry.sha1 == request.hash) && ((certEntry.cn == '*') || checkAcmActivationCertName(certEntry.cn, request.fqdn))) { hashAlgo = 'sha1'; signkey = certEntry.key; certChain = certEntry.certs; certIndex = i; break; }
}
if (signkey == null) return { 'action': 'acmactivate', 'error': 2, 'errorText': "Can't sign ACM request, no signing certificate found." }; // Did not find a match.
// If the matching certificate our wildcard root cert, we can use the root to match any FQDN
if (domain.amtacmactivation.certs[certIndex].cn == '*') {
// Create a leaf certificate that matches the FQDN we want
// TODO: This is an expensive operation, work on ways to pre-generate or cache this leaf certificate.
var rootcert = { cert: domain.amtacmactivation.certs[certIndex].rootcert, key: obj.pki.privateKeyFromPem(domain.amtacmactivation.certs[certIndex].key) };
var leafcert = obj.IssueWebServerCertificate(rootcert, false, request.fqdn, 'mc', 'Intel(R) Client Setup Certificate', { serverAuth: true, '2.16.840.1.113741.1.2.3': true }, false);
// Setup the certificate chain and key
certChain = [pemToBase64(obj.pki.certificateToPem(leafcert.cert)), pemToBase64(obj.pki.certificateToPem(domain.amtacmactivation.certs[certIndex].rootcert))];
signkey = obj.pki.privateKeyToPem(leafcert.key);
}
// Setup both nonces, ready to be signed
const mcNonce = Buffer.from(obj.crypto.randomBytes(20), 'binary');
const fwNonce = Buffer.from(request.nonce, 'base64');
// Sign the request
var signature = null;
try {
var signer = obj.crypto.createSign(hashAlgo);
signer.update(Buffer.concat([fwNonce, mcNonce]));
signature = signer.sign(signkey, 'base64');
} catch (ex) {
return { 'action': 'acmactivate', 'error': 4, 'errorText': "Unable to perform signature." };
}
// Log the activation request, logging is a required step for activation.
if (obj.logAmtActivation(domain, { time: new Date(), action: 'acmactivate', domain: domain.id, amtUuid: request.uuid, certHash: request.hash, hashType: hashAlgo, amtRealm: request.realm, amtFqdn: request.fqdn, user: user, password: pass, ipport: ipport, nodeid: nodeid, meshid: meshid, computerName: computerName, agentId: agentId, tag: request.tag, name: request.name }) == false) return { 'action': 'acmactivate', 'error': 5, 'errorText': "Unable to log operation." };
// Return the signature with the computed account password hash
return { 'action': 'acmactivate', 'signature': signature, 'password': obj.crypto.createHash('md5').update(user + ':' + request.realm + ':' + pass).digest('hex'), 'nonce': mcNonce.toString('base64'), 'certs': certChain };
}
// Remove the PEM header, footer and carriage returns so we only have the Base64 DER.
function pemToBase64(pem) { return pem.split('-----BEGIN CERTIFICATE-----').join('').split('-----END CERTIFICATE-----').join('').split('\r\n').join(''); }
// Return true if both arrays match
function compareArrays(a1, a2) {
if (Array.isArray(a1) == false) return false;
if (Array.isArray(a2) == false) return false;
if (a1.length !== a2.length) return false;
for (var i = 0; i < a1.length; i++) { if (a1[i] !== a2[i]) return false; }
return true;
}
// Log the Intel AMT activation operation in the domain log
obj.logAmtActivation = function (domain, x) {
if (x == null) return true;
// Add the password to the Intel AMT list of UUID to passwords
if ((typeof x.amtUuid == 'string') && (typeof x.password == 'string')) {
if (parent.amtPasswords == null) { parent.amtPasswords = {}; }
if (parent.amtPasswords[x.amtUuid] == null) {
parent.amtPasswords[x.amtUuid] = [x.password]; // Add password to array
parent.amtPasswords = parent.common.sortObj(parent.amtPasswords);
} else {
if (parent.amtPasswords[x.amtUuid].indexOf(x.password) == -1) {
parent.amtPasswords[x.amtUuid].unshift(x.password); // Add password at the start of the array
while (parent.amtPasswords[x.amtUuid].length > 3) { parent.amtPasswords[x.amtUuid].pop(); } // Only keep the 3 last passwords for any given device
}
}
}
// Append to the log file
var logpath = null;
if ((domain.amtacmactivation == null) || (domain.amtacmactivation.log == null) || (typeof domain.amtacmactivation.log != 'string')) {
if (domain.id == '') { logpath = parent.path.join(obj.parent.datapath, 'amtactivation.log'); } else { logpath = parent.path.join(obj.parent.datapath, 'amtactivation-' + domain.id + '.log'); }
} else {
logpath = parent.common.joinPath(obj.parent.datapath, domain.amtacmactivation.log);
}
try { obj.fs.appendFileSync(logpath, JSON.stringify(x) + '\r\n'); } catch (ex) { console.log(ex); return false; }
return true;
}
// Load Intel AMT ACM activation certificates
obj.loadIntelAmtAcmCerts = function (amtacmactivation) {
if (amtacmactivation == null) return;
var acmCerts = [], acmmatch = [];
amtacmactivation.acmCertErrors = [];
if (amtacmactivation.certs != null) {
for (var j in amtacmactivation.certs) {
if (j.startsWith('_')) continue; // Skip any certificates that start with underscore as the name.
var acmconfig = amtacmactivation.certs[j], r = null;
if ((typeof acmconfig.certpfx == 'string') && (typeof acmconfig.certpfxpass == 'string')) {
// P12 format, certpfx and certpfxpass
const certFilePath = parent.common.joinPath(obj.parent.datapath, acmconfig.certpfx);
try { r = obj.loadPfxCertificate(certFilePath, acmconfig.certpfxpass); } catch (ex) { console.log(ex); }
if ((r == null) || (r.certs == null) || (r.keys == null)) { amtacmactivation.acmCertErrors.push("Unable to load certificate file: " + certFilePath + "."); continue; }
if (r.certs.length < 2) { amtacmactivation.acmCertErrors.push("Certificate file contains less then 2 certificates: " + certFilePath + "."); continue; }
if (r.keys.length != 1) { amtacmactivation.acmCertErrors.push("Certificate file must contain exactly one private key: " + certFilePath + "."); continue; }
} else if ((typeof acmconfig.certfiles == 'object') && (typeof acmconfig.keyfile == 'string')) {
// PEM format, certfiles and keyfile
r = { certs: [], keys: [] };
for (var k in acmconfig.certfiles) {
const certFilePath = parent.common.joinPath(obj.parent.datapath, acmconfig.certfiles[k]);
try { r.certs.push(obj.pki.certificateFromPem(obj.fs.readFileSync(certFilePath))); } catch (ex) { amtacmactivation.acmCertErrors.push("Unable to load certificate file: " + certFilePath + "."); }
}
r.keys.push(obj.pki.privateKeyFromPem(obj.fs.readFileSync(parent.common.joinPath(obj.parent.datapath, acmconfig.keyfile))));
if (r.certs.length < 2) { amtacmactivation.acmCertErrors.push("Certificate file contains less then 2 certificates: " + certFilePath + "."); continue; }
if (r.keys.length != 1) { amtacmactivation.acmCertErrors.push("Certificate file must contain exactly one private key: " + certFilePath + "."); continue; }
}
// Reorder the certificates from leaf to root.
var orderedCerts = [], or = [], currenthash = null, orderingError = false;;
while ((orderingError == false) && (orderedCerts.length < r.certs.length)) {
orderingError = true;
for (var k in r.certs) {
if (((currenthash == null) && (r.certs[k].subject.hash == r.certs[k].issuer.hash)) || ((r.certs[k].issuer.hash == currenthash) && (r.certs[k].subject.hash != r.certs[k].issuer.hash))) {
currenthash = r.certs[k].subject.hash;
orderedCerts.unshift(Buffer.from(obj.forge.asn1.toDer(obj.pki.certificateToAsn1(r.certs[k])).data, 'binary').toString('base64'));
or.unshift(r.certs[k]);
orderingError = false;
}
}
}
if (orderingError == true) { amtacmactivation.acmCertErrors.push("Unable to order Intel AMT ACM activation certificates to create a full chain."); continue; }
r.certs = or;
// Check that the certificate and private key match
if ((compareArrays(r.certs[0].publicKey.n.data, r.keys[0].n.data) == false) || (compareArrays(r.certs[0].publicKey.e.data, r.keys[0].e.data) == false)) {
amtacmactivation.acmCertErrors.push("Intel AMT activation certificate provided with a mismatching private key.");
continue;
}
/*
// Debug: Display all certs & key as PEM
for (var k in r.certs) {
var cn = r.certs[k].subject.getField('CN');
if (cn != null) { console.log(cn.value + '\r\n' + obj.pki.certificateToPem(r.certs[k])); } else { console.log(obj.pki.certificateToPem(r.certs[k])); }
}
console.log(obj.pki.privateKeyToPem(r.keys[0]));
*/
// Check if the right OU or OID is present for Intel AMT activation
var validActivationCert = false;
for (var k in r.certs[0].extensions) { if (r.certs[0].extensions[k]['2.16.840.1.113741.1.2.3'] == true) { validActivationCert = true; } }
var orgName = r.certs[0].subject.getField('OU');
if ((orgName != null) && (orgName.value == 'Intel(R) Client Setup Certificate')) { validActivationCert = true; }
if (validActivationCert == false) { amtacmactivation.acmCertErrors.push("Intel AMT activation certificate must have usage OID \"2.16.840.1.113741.1.2.3\" or organization name \"Intel(R) Client Setup Certificate\"."); continue; }
// Compute the SHA256 and SHA1 hashes of the root certificate
for (var k in r.certs) {
if (r.certs[k].subject.hash != r.certs[k].issuer.hash) continue;
const certdata = obj.forge.asn1.toDer(obj.pki.certificateToAsn1(r.certs[k])).data;
var md = obj.forge.md.sha256.create();
md.update(certdata);
acmconfig.sha256 = Buffer.from(md.digest().getBytes(), 'binary').toString('hex');
md = obj.forge.md.sha1.create();
md.update(certdata);
acmconfig.sha1 = Buffer.from(md.digest().getBytes(), 'binary').toString('hex');
}
if ((acmconfig.sha1 == null) || (acmconfig.sha256 == null)) { amtacmactivation.acmCertErrors.push("Unable to compute Intel AMT activation certificate SHA1 and SHA256 hashes."); continue; }
// Get the certificate common name
var certCommonName = r.certs[0].subject.getField('CN');
if (certCommonName == null) { amtacmactivation.acmCertErrors.push("Unable to get Intel AMT activation certificate common name."); continue; }
if (amtacmactivation.strictcommonname == true) {
// Use the certificate common name exactly
acmconfig.cn = certCommonName.value;
} else {
// Check if Intel AMT will allow some flexibility in the certificate common name
var certCommonNameSplit = certCommonName.value.split('.');
var topLevel = certCommonNameSplit[certCommonNameSplit.length - 1].toLowerCase();
var topLevelNum = TopLevelDomainExtendedSupport[topLevel];
if (topLevelNum != null) {
while (certCommonNameSplit.length > topLevelNum) { certCommonNameSplit.shift(); }
acmconfig.cn = certCommonNameSplit.join('.');
} else {
acmconfig.cn = certCommonName.value;
}
}
delete acmconfig.cert;
delete acmconfig.certpass;
acmconfig.certs = orderedCerts;
acmconfig.key = obj.pki.privateKeyToPem(r.keys[0]);
acmCerts.push(acmconfig);
acmmatch.push({ sha256: acmconfig.sha256, sha1: acmconfig.sha1, cn: acmconfig.cn });
}
}
amtacmactivation.acmmatch = acmmatch;
amtacmactivation.certs = acmCerts;
// Add the MeshCentral root cert as a possible activation cert
if (obj.parent.certificates.root) {
var x1 = obj.parent.certificates.root.cert.indexOf('-----BEGIN CERTIFICATE-----'), x2 = obj.parent.certificates.root.cert.indexOf('-----END CERTIFICATE-----');
if ((x1 >= 0) && (x2 > x1)) {
var sha256 = obj.crypto.createHash('sha256').update(Buffer.from(obj.parent.certificates.root.cert.substring(x1 + 27, x2), 'base64')).digest('hex');
var sha1 = obj.crypto.createHash('sha1').update(Buffer.from(obj.parent.certificates.root.cert.substring(x1 + 27, x2), 'base64')).digest('hex');
amtacmactivation.certs.push({ 'sha256': sha256, 'sha1': sha1, 'cn': '*', rootcert: obj.pki.certificateFromPem(obj.parent.certificates.root.cert), key: obj.parent.certificates.root.key });
amtacmactivation.acmmatch.push({ 'sha256': sha256, 'sha1': sha1, 'cn': '*' });
}
}
}
// Load a generic certificate and key from PFX/P12 or PEM format. Load both keys and attributes.
obj.loadGenericCertAndKey = function (config) {
if ((typeof config.certpfx == 'string') || (typeof config.certpfxpass == 'string')) {
// Load a PFX certificate
var r = null;
try { r = obj.loadPfxCertificate(parent.getConfigFilePath(config.certpfx), config.certpfxpass); } catch (ex) { console.log(ex); }
if ((r != null) && (r.keys.length > 0) && (r.certs.length > 0)) {
var attributes = {};
for (var j in r.certs[0].subject.attributes) { attributes[r.certs[0].subject.attributes[j].shortName] = r.certs[0].subject.attributes[j].value; }
return { cert: obj.pki.certificateToPem(r.certs[0]), key: obj.pki.privateKeyToPem(r.keys[0]), attributes: attributes };
}
}
if ((typeof config.certfile == 'string') || (typeof config.keyfile == 'string')) {
// Load a PEM certificate
var r = {}
r.cert = obj.fs.readFileSync(parent.getConfigFilePath(config.certfile), 'utf8');
r.key = obj.fs.readFileSync(parent.getConfigFilePath(config.keyfile), 'utf8');
var cert = obj.pki.certificateFromPem(r.cert);
r.attributes = {};
for (var j in cert.subject.attributes) { r.attributes[cert.subject.attributes[j].shortName] = cert.subject.attributes[j].value; }
return r;
}
return null;
}
// Get the setup.bin file
obj.GetSetupBinFile = function (amtacmactivation, oldmebxpass, newmebxpass, domain, user) {
// Create a setup.bin file for our own root cert
// Get the wiadcard certificate hash
var wildcardCertSha256 = null;
for (var i = 0; i < amtacmactivation.acmmatch.length; i++) { if (amtacmactivation.acmmatch[i].cn == '*') { wildcardCertSha256 = amtacmactivation.acmmatch[i].sha256; } }
// Create the Setup.bin stack
const AmtSetupBinStack = require('./amt/amt-setupbin')();
var setupbin = AmtSetupBinStack.AmtSetupBinCreate(3, 1); // Version 3, 1 = Records will not be consumed.
var certRootName = 'MeshCentral';
// Figure out what trusted FQDN to use.
var trustedFQDN = 'rootcert.meshcentral.com'; // Default DNS name. Any DNS name will do, we this is the fallback.
if (typeof domain.dns == 'string') {
// Use domain DNS name
trustedFQDN = domain.dns;
} else if (typeof parent.config.settings.cert == 'string') {
// Use main DNS name
trustedFQDN = parent.config.settings.cert;
}
// Create a new record
var r = {};
r.typeIdentifier = 1;
r.flags = 1; // Valid, unscrambled record.
r.chunkCount = 0;
r.headerByteCount = 0;
r.number = 0;
r.variables = [];
setupbin.records.push(r);
// Create "Current MEBx Password" variable
var v = {};
v.moduleid = 1;
v.varid = 1;
v.length = -1;
v.value = oldmebxpass;
setupbin.records[0].variables.push(v);
// Create "New MEBx Password" variable
v = {};
v.moduleid = 1;
v.varid = 2;
v.length = -1;
v.value = newmebxpass;
setupbin.records[0].variables.push(v);
// Create "User Defined Certificate Addition" variable
v = {};
v.moduleid = 2;
v.varid = 8;
v.length = -1;
v.value = String.fromCharCode(2) + Buffer.from(wildcardCertSha256, 'hex').toString('binary') + String.fromCharCode(certRootName.length) + certRootName; // 2 = SHA256 hash type
setupbin.records[0].variables.push(v);
// Create "PKI DNS Suffix" variable
v = {};
v.moduleid = 2;
v.varid = 3;
v.length = -1;
v.value = trustedFQDN;
setupbin.records[0].variables.push(v);
// Create "ME Provision Halt Active" variable
v = {};
v.moduleid = 2;
v.varid = 28;
v.length = -1;
v.value = 0; // Stop
setupbin.records[0].variables.push(v);
// Write to log file
obj.logAmtActivation(domain, { time: new Date(), action: 'setupbin', domain: domain.id, userid: user._id, oldmebx: oldmebxpass, newmebx: newmebxpass, rootname: certRootName, hash: wildcardCertSha256, dns: trustedFQDN });
// Encode the setup.bin file
return AmtSetupBinStack.AmtSetupBinEncode(setupbin);
}
// Get a bare metal setup.bin file
obj.GetBareMetalSetupBinFile = function (amtacmactivation, oldmebxpass, newmebxpass, domain, user) {
// Create a setup.bin file for our own root cert
// Get the wiadcard certificate hash
var wildcardCertSha256 = null;
for (var i = 0; i < amtacmactivation.acmmatch.length; i++) { if (amtacmactivation.acmmatch[i].cn == '*') { wildcardCertSha256 = amtacmactivation.acmmatch[i].sha256; } }
// Create the Setup.bin stack
const AmtSetupBinStack = require('./amt/amt-setupbin')();
var setupbin = AmtSetupBinStack.AmtSetupBinCreate(3, 1); // Version 3, 1 = Records will not be consumed.
var certRootName = 'MeshCentral';
// Figure out what trusted FQDN to use.
var trustedFQDN = parent.config.settings.amtprovisioningserver.trustedfqdn
// Figure out the provisioning server port
var port = 9971;
if (typeof parent.config.settings.amtprovisioningserver.port == 'number') { port = parent.config.settings.amtprovisioningserver.port; }
// Get the provisioning server IP address from the config file
if (typeof parent.config.settings.amtprovisioningserver.ip != 'string') return null;
var ipaddr = parent.config.settings.amtprovisioningserver.ip;
var ipaddrSplit = ipaddr.split('.');
var ipaddrStr = String.fromCharCode(parseInt(ipaddrSplit[3])) + String.fromCharCode(parseInt(ipaddrSplit[2])) + String.fromCharCode(parseInt(ipaddrSplit[1])) + String.fromCharCode(parseInt(ipaddrSplit[0]));
// Create a new record
var r = {};
r.typeIdentifier = 1;
r.flags = 1; // Valid, unscrambled record.
r.chunkCount = 0;
r.headerByteCount = 0;
r.number = 0;
r.variables = [];
setupbin.records.push(r);
// Create "Current MEBx Password" variable
var v = {};
v.moduleid = 1;
v.varid = 1;
v.length = -1;
v.value = oldmebxpass;
setupbin.records[0].variables.push(v);
// Create "New MEBx Password" variable
v = {};
v.moduleid = 1;
v.varid = 2;
v.length = -1;
v.value = newmebxpass;
setupbin.records[0].variables.push(v);
// Create "User Defined Certificate Addition" variable
v = {};
v.moduleid = 2;
v.varid = 8;
v.length = -1;
v.value = String.fromCharCode(2) + Buffer.from(wildcardCertSha256, 'hex').toString('binary') + String.fromCharCode(certRootName.length) + certRootName; // 2 = SHA256 hash type
setupbin.records[0].variables.push(v);
// Create "PKI DNS Suffix" variable
v = {};
v.moduleid = 2;
v.varid = 3;
v.length = -1;
v.value = trustedFQDN;
setupbin.records[0].variables.push(v);
// Create "Configuration Server FQDN" variable
v = {};
v.moduleid = 2;
v.varid = 4;
v.length = -1;
v.value = trustedFQDN;
setupbin.records[0].variables.push(v);
// Create "Provisioning Server Address" variable
v = {};
v.moduleid = 2;
v.varid = 17;
v.length = -1;
v.value = ipaddrStr;
setupbin.records[0].variables.push(v);
// Create "Provisioning Server Port Number" variable
v = {};
v.moduleid = 2;
v.varid = 18;
v.length = -1;
v.value = port;
setupbin.records[0].variables.push(v);
// Create "ME Provision Halt Active" variable
v = {};
v.moduleid = 2;
v.varid = 28;
v.length = -1;
v.value = 1; // Start
setupbin.records[0].variables.push(v);
// Write to log file
obj.logAmtActivation(domain, { time: new Date(), action: 'setupbin-bare-metal', domain: domain.id, userid: user._id, oldmebx: oldmebxpass, newmebx: newmebxpass, rootname: certRootName, hash: wildcardCertSha256, dns: trustedFQDN, ip: ipaddr, port: port });
// Encode the setup.bin file
return AmtSetupBinStack.AmtSetupBinEncode(setupbin);
}
// Return the certificate of the remote HTTPS server
obj.loadPfxCertificate = function (filename, password) {
var r = { certs: [], keys: [] };
var pfxb64 = Buffer.from(obj.fs.readFileSync(filename)).toString('base64');
var pfx = obj.forge.pkcs12.pkcs12FromAsn1(obj.forge.asn1.fromDer(obj.forge.util.decode64(pfxb64)), true, password);
// Get the certs from certbags
var bags = pfx.getBags({ bagType: obj.forge.pki.oids.certBag });
for (var i = 0; i < bags[obj.forge.pki.oids.certBag].length; i++) { r.certs.push(bags[obj.forge.pki.oids.certBag][i].cert); }
// Get shrouded key from key bags
bags = pfx.getBags({ bagType: obj.forge.pki.oids.pkcs8ShroudedKeyBag });
for (var i = 0; i < bags[obj.forge.pki.oids.pkcs8ShroudedKeyBag].length; i++) { r.keys.push(bags[obj.forge.pki.oids.pkcs8ShroudedKeyBag][i].key); }
return r;
}
// Return a text file from a remote HTTPS server
obj.loadTextFile = function (url, tag, func) {
const u = require('url').parse(url);
if (u.protocol == 'https:') {
// Read from HTTPS
const https = require('https');
https.get(url, function(resp) {
var data = '';
resp.on('data', function(chunk) { data += chunk; });
resp.on('end', function () { func(url, data, tag); });
resp.on('error', function (chunk) { func(url, null, tag); });
}).on('error', function (err) { func(url, null, tag); });
} else if (u.protocol == 'file:') {
// Read a file
obj.fs.readFile(url.substring(7), 'utf8', function (err, data) {
func(url, err ? null : data, tag);
});
} else { func(url, null, tag); }
};
// Return the certificate of the remote HTTPS server
obj.loadCertificate = function (url, hostname, tag, func) {
const u = require('url').parse(url);
if (u.protocol == 'https:') {
// Read the certificate from HTTPS
if (hostname == null) { hostname = u.hostname; }
parent.debug('cert', "loadCertificate() - Loading certificate from " + u.hostname + ":" + (u.port ? u.port : 443) + ", Hostname: " + hostname + "...");
const tlssocket = obj.tls.connect((u.port ? u.port : 443), u.hostname, { servername: hostname, rejectUnauthorized: false }, function () {
this.xxcert = this.getPeerCertificate();
parent.debug('cert', "loadCertificate() - TLS connected, " + ((this.xxcert != null) ? "got certificate." : "no certificate."));
try { this.destroy(); } catch (ex) { }
this.xxfunc(this.xxurl, (this.xxcert == null)?null:(this.xxcert.raw.toString('binary')), hostname, this.xxtag);
});
tlssocket.xxurl = url;
tlssocket.xxfunc = func;
tlssocket.xxtag = tag;
tlssocket.on('error', function (error) { try { this.destroy(); } catch (ex) { } parent.debug('cert', "loadCertificate() - TLS error: " + error); this.xxfunc(this.xxurl, null, hostname, this.xxtag); });
} else if (u.protocol == 'file:') {
// Read the certificate from a file
obj.fs.readFile(url.substring(7), 'utf8', function (err, data) {
if (err) { func(url, null, hostname, tag); return; }
var x1 = data.indexOf('-----BEGIN CERTIFICATE-----'), x2 = data.indexOf('-----END CERTIFICATE-----');
if ((x1 >= 0) && (x2 > x1)) {
func(url, Buffer.from(data.substring(x1 + 27, x2), 'base64').toString('binary'), hostname, tag);
} else {
func(url, data, hostname, tag);
}
});
} else { func(url, null, hostname, tag); }
};
// Check if a configuration file exists
obj.fileExists = function (filename) {
if ((parent.configurationFiles != null) && (parent.configurationFiles[filename] != null)) { return true; }
var filePath = parent.getConfigFilePath(filename);
try { return obj.fs.statSync(filePath).isFile(); } catch (err) { return false; }
};
// Load a configuration file
obj.fileLoad = function (filename, encoding) {
if ((parent.configurationFiles != null) && (parent.configurationFiles[filename] != null)) {
if (typeof parent.configurationFiles[filename] == 'string') { return fixEndOfLines(parent.configurationFiles[filename]); }
return fixEndOfLines(parent.configurationFiles[filename].toString());
} else {
return fixEndOfLines(obj.fs.readFileSync(parent.getConfigFilePath(filename), encoding));
}
}
// Return the SHA384 hash of the certificate public key
obj.getPublicKeyHash = function (cert) {
var publickey = obj.pki.certificateFromPem(cert).publicKey;
return obj.pki.getPublicKeyFingerprint(publickey, { encoding: 'hex', md: obj.forge.md.sha384.create() });
};
// Return the SHA1 hash of the certificate, return hex
obj.getCertHashSha1 = function (cert) {
try {
var md = obj.forge.md.sha1.create();
md.update(obj.forge.asn1.toDer(obj.pki.certificateToAsn1(obj.pki.certificateFromPem(cert))).getBytes());
return md.digest().toHex();
} catch (ex) {
// If this is not an RSA certificate, hash the raw PKCS7 out of the PEM file
var x1 = cert.indexOf('-----BEGIN CERTIFICATE-----'), x2 = cert.indexOf('-----END CERTIFICATE-----');
if ((x1 >= 0) && (x2 > x1)) {
return obj.crypto.createHash('sha1').update(Buffer.from(cert.substring(x1 + 27, x2), 'base64')).digest('hex');
} else { console.log("ERROR: Unable to decode certificate."); return null; }
}
};
// Return the SHA256 hash of the certificate, return hex
obj.getCertHashSha256 = function (cert) {
try {
var md = obj.forge.md.sha256.create();
md.update(obj.forge.asn1.toDer(obj.pki.certificateToAsn1(obj.pki.certificateFromPem(cert))).getBytes());
return md.digest().toHex();
} catch (ex) {
// If this is not an RSA certificate, hash the raw PKCS7 out of the PEM file
var x1 = cert.indexOf('-----BEGIN CERTIFICATE-----'), x2 = cert.indexOf('-----END CERTIFICATE-----');
if ((x1 >= 0) && (x2 > x1)) {
return obj.crypto.createHash('sha256').update(Buffer.from(cert.substring(x1 + 27, x2), 'base64')).digest('hex');
} else { console.log("ERROR: Unable to decode certificate."); return null; }
}
};
// Return the SHA384 hash of the certificate, return hex
obj.getCertHash = function (cert) {
try {
var md = obj.forge.md.sha384.create();
md.update(obj.forge.asn1.toDer(obj.pki.certificateToAsn1(obj.pki.certificateFromPem(cert))).getBytes());
return md.digest().toHex();
} catch (ex) {
// If this is not an RSA certificate, hash the raw PKCS7 out of the PEM file
var x1 = cert.indexOf('-----BEGIN CERTIFICATE-----'), x2 = cert.indexOf('-----END CERTIFICATE-----');
if ((x1 >= 0) && (x2 > x1)) {
return obj.crypto.createHash('sha384').update(Buffer.from(cert.substring(x1 + 27, x2), 'base64')).digest('hex');
} else { console.log("ERROR: Unable to decode certificate."); return null; }
}
};
// Return the SHA384 hash of the certificate public key
obj.getPublicKeyHashBinary = function (cert) {
var publickey = obj.pki.certificateFromPem(cert).publicKey;
return obj.pki.getPublicKeyFingerprint(publickey, { encoding: 'binary', md: obj.forge.md.sha384.create() });
};
// Return the SHA384 hash of the certificate, return binary
obj.getCertHashBinary = function (cert) {
try {
// If this is a RSA certificate, we can use Forge to hash the ASN1
var md = obj.forge.md.sha384.create();
md.update(obj.forge.asn1.toDer(obj.pki.certificateToAsn1(obj.pki.certificateFromPem(cert))).getBytes());
return md.digest().getBytes();
} catch (ex) {
// If this is not an RSA certificate, hash the raw PKCS7 out of the PEM file
var x1 = cert.indexOf('-----BEGIN CERTIFICATE-----'), x2 = cert.indexOf('-----END CERTIFICATE-----');
if ((x1 >= 0) && (x2 > x1)) {
return obj.crypto.createHash('sha384').update(Buffer.from(cert.substring(x1 + 27, x2), 'base64')).digest('binary');
} else { console.log("ERROR: Unable to decode certificate."); return null; }
}
};
// Create a self-signed certificate
obj.GenerateRootCertificate = function (addThumbPrintToName, commonName, country, organization, strong) {
var keys = obj.pki.rsa.generateKeyPair({ bits: (strong == true) ? 3072 : 2048, e: 0x10001 });
var cert = obj.pki.createCertificate();
cert.publicKey = keys.publicKey;
cert.serialNumber = '' + require('crypto').randomBytes(4).readUInt32BE(0);
cert.validity.notBefore = new Date(2018, 0, 1);
cert.validity.notAfter = new Date(2049, 11, 31);
if (addThumbPrintToName === true) { commonName += '-' + obj.pki.getPublicKeyFingerprint(cert.publicKey, { encoding: 'hex' }).substring(0, 6); }
if (country == null) { country = "unknown"; }
if (organization == null) { organization = "unknown"; }
var attrs = [{ name: 'commonName', value: commonName }, { name: 'organizationName', value: organization }, { name: 'countryName', value: country }];
cert.setSubject(attrs);
cert.setIssuer(attrs);
// Create a root certificate
//cert.setExtensions([{ name: 'basicConstraints', cA: true }, { name: 'nsCertType', sslCA: true, emailCA: true, objCA: true }, { name: 'subjectKeyIdentifier' }]);
cert.setExtensions([{ name: 'basicConstraints', cA: true }, { name: 'subjectKeyIdentifier' }, { name: 'keyUsage', keyCertSign: true }]);
cert.sign(keys.privateKey, obj.forge.md.sha384.create());
return { cert: cert, key: keys.privateKey };
};
// Issue a certificate from a root
obj.IssueWebServerCertificate = function (rootcert, addThumbPrintToName, commonName, country, organization, extKeyUsage, strong) {
var keys = obj.pki.rsa.generateKeyPair({ bits: (strong == true) ? 3072 : 2048, e: 0x10001 });
var cert = obj.pki.createCertificate();
cert.publicKey = keys.publicKey;
cert.serialNumber = '' + require('crypto').randomBytes(4).readUInt32BE(0);
cert.validity.notBefore = new Date(2018, 0, 1);
cert.validity.notAfter = new Date(2049, 11, 31);
if (addThumbPrintToName === true) { commonName += "-" + obj.pki.getPublicKeyFingerprint(cert.publicKey, { encoding: 'hex' }).substring(0, 6); }
var attrs = [{ name: 'commonName', value: commonName }];
if (country != null) { attrs.push({ name: 'countryName', value: country }); }
if (organization != null) { attrs.push({ name: 'organizationName', value: organization }); }
cert.setSubject(attrs);
cert.setIssuer(rootcert.cert.subject.attributes);
if (extKeyUsage == null) { extKeyUsage = { name: 'extKeyUsage', serverAuth: true }; } else { extKeyUsage.name = 'extKeyUsage'; }
//var extensions = [{ name: 'basicConstraints', cA: false }, { name: 'keyUsage', keyCertSign: true, digitalSignature: true, nonRepudiation: true, keyEncipherment: true, dataEncipherment: true }, extKeyUsage, { name: "nsCertType", client: false, server: true, email: false, objsign: false, sslCA: false, emailCA: false, objCA: false }, { name: "subjectKeyIdentifier" }];
var extensions = [{ name: 'basicConstraints', cA: false }, { name: 'keyUsage', keyCertSign: false, digitalSignature: true, nonRepudiation: false, keyEncipherment: true, dataEncipherment: (extKeyUsage.serverAuth !== true) }, extKeyUsage, { name: "subjectKeyIdentifier" }];
if (extKeyUsage.serverAuth === true) {
// Set subjectAltName according to commonName parsing.
// Ideally, we should let opportunity in given interface to set any type of altNames according to node_forge library
// such as type 2, 6 and 7. (2 -> DNS, 6 -> URI, 7 -> IP)
var altNames = [];
// According to commonName parsing (IP or DNS), add URI and DNS and/or IP altNames
if (require('net').isIP(commonName)) {
// set both IP and DNS when commonName is an IP@
altNames.push({ type: 7, ip: commonName });
altNames.push({ type: 2, value: commonName });
} else {
// set only DNS when commonName is a FQDN
altNames.push({ type: 2, value: commonName });
}
altNames.push({ type: 6, value: 'http://' + commonName + '/' })
// Add localhost stuff for easy testing on localhost ;)
altNames.push({ type: 2, value: 'localhost' });
altNames.push({ type: 6, value: 'http://localhost/' });
altNames.push({ type: 7, ip: '127.0.0.1' });
extensions.push({ name: 'subjectAltName', altNames: altNames });
}
if (extKeyUsage.codeSign === true) {
extensions = [{ name: 'basicConstraints', cA: false }, { name: 'keyUsage', keyCertSign: false, digitalSignature: true, nonRepudiation: false, keyEncipherment: false, dataEncipherment: false }, { name: 'extKeyUsage', codeSigning: true }, { name: "subjectKeyIdentifier" }];
}
cert.setExtensions(extensions);
cert.sign(rootcert.key, obj.forge.md.sha384.create());
return { cert: cert, key: keys.privateKey };
};
// Make sure a string with Mac style CR endo of line is changed to Linux LF style.
function fixEndOfLines(str) {
if (typeof (str) != 'string') return str; // If this is not a string, do nothing.
var i = str.indexOf('-----'); // Remove everything before "-----".
if (i > 0) { str = str.substring(i); } // this solves problems with editors that save text file type indicators ahead of the text.
if ((typeof(str) != 'string') || (str.indexOf('\n') > 0)) return str; // If there is a \n in the file, keep the file as-is.
return str.split('\r').join('\n'); // If there is no \n, replace all \r with \n.
}
// Return true if the name is found in the certificates names, we support wildcard certificates
obj.compareCertificateNames = function(certNames, name) {
if (certNames == null) return false;
name = name.toLowerCase();
var xcertNames = [];
for (var i in certNames) { xcertNames.push(certNames[i].toLowerCase()); }
if (xcertNames.indexOf(name) >= 0) return true;
for (var i in xcertNames) {
if ((xcertNames[i].startsWith('*.') == true) && (name.endsWith(xcertNames[i].substring(1)) == true)) { return true; }
if (xcertNames[i].startsWith('http://*.') == true) {
if (name.endsWith(xcertNames[i].substring(8)) == true) { return true; }
if ((xcertNames[i].endsWith('/') == true) && (name.endsWith(xcertNames[i].substring(8, xcertNames[i].length - 1)) == true)) { return true; }
}
}
return false;
}
// Return true if the certificate is valid
obj.checkCertificate = function (pem, key) {
var cert = null;
try { cert = obj.pki.certificateFromPem(pem); } catch (ex) { return false; } // Unable to decode certificate
if (cert.serialNumber == '') return false; // Empty serial number is not allowed.
return true;
}
// Decrypt private key if needed
obj.decryptPrivateKey = function (key) {
if (typeof key != 'string') return key;
var i = key.indexOf('-----BEGIN ENCRYPTED PRIVATE KEY-----');
var j = key.indexOf('-----END ENCRYPTED PRIVATE KEY-----');
if ((i >= 0) && (j > i)) {
var passwords = parent.config.settings.certificateprivatekeypassword;
if (parent.config.settings.certificateprivatekeypassword == null) { passwords = []; }
else if (typeof parent.config.settings.certificateprivatekeypassword == 'string') { passwords = [parent.config.settings.certificateprivatekeypassword ]; }
var privateKey = null;
for (var k in passwords) { if (privateKey == null) { try { privateKey = obj.pki.decryptRsaPrivateKey(key, passwords[k]); } catch (ex) { } } }
if (privateKey == null) {
console.log("Private certificate key is encrypted, but no correct password was found.");
console.log("Add the password to the \"certificatePrivateKeyPassword\" value in the Settings section of the config.json.");
console.log("Example: \"certificatePrivateKeyPassword\": [ \"MyPassword\" ]");
process.exit();
return null;
}
return obj.pki.privateKeyToPem(privateKey);
}
return key;
}
// Returns the web server TLS certificate and private key, if not present, create demonstration ones.
obj.GetMeshServerCertificate = function (args, config, func) {
var i = 0;
var certargs = args.cert;
var mpscertargs = args.mpscert;
var strongCertificate = (args.fastcert ? false : true);
var rcountmax = 5;
var caindex = 1;
var caok = false;
var calist = [];
var dnsname = null;
// commonName, country, organization
// If the certificates directory does not exist, create it.
if (!obj.dirExists(parent.datapath)) { obj.fs.mkdirSync(parent.datapath); }
var r = {};
var rcount = 0;
// If the root certificate already exist, load it
if (obj.fileExists('root-cert-public.crt') && obj.fileExists('root-cert-private.key')) {
var rootCertificate = obj.fileLoad('root-cert-public.crt', 'utf8');
var rootPrivateKey = obj.decryptPrivateKey(obj.fileLoad('root-cert-private.key', 'utf8'));
r.root = { cert: rootCertificate, key: rootPrivateKey };
rcount++;
// Check if the root certificate has the "Certificate Signing (04)" Key usage.
// This option is required for newer versions of Intel AMT for CIRA/WS-EVENTS.
var xroot = obj.pki.certificateFromPem(rootCertificate);
var xext = xroot.getExtension('keyUsage');
if ((xext == null) || (xext.keyCertSign !== true) || (xroot.serialNumber == '')) {
// We need to fix this certificate
parent.common.moveOldFiles(['root-cert-public-backup.crt']);
obj.fs.writeFileSync(parent.getConfigFilePath('root-cert-public-backup.crt'), rootCertificate);
if (xroot.serialNumber == '') { console.log("Fixing root certificate to add serial number..."); xroot.serialNumber = '' + require('crypto').randomBytes(4).readUInt32BE(0); }
if ((xext == null) || (xext.keyCertSign !== true)) { console.log("Fixing root certificate to add signing key usage..."); xroot.setExtensions([{ name: 'basicConstraints', cA: true }, { name: 'subjectKeyIdentifier' }, { name: 'keyUsage', keyCertSign: true }]); }
var xrootPrivateKey = obj.pki.privateKeyFromPem(rootPrivateKey);
xroot.sign(xrootPrivateKey, obj.forge.md.sha384.create());
r.root.cert = obj.pki.certificateToPem(xroot);
parent.common.moveOldFiles([parent.getConfigFilePath('root-cert-public.crt')]);
try { obj.fs.writeFileSync(parent.getConfigFilePath('root-cert-public.crt'), r.root.cert); } catch (ex) { }
}
}
// If web certificate exist, load it as default. This is useful for agent-only port. Load both certificate and private key
if (obj.fileExists('webserver-cert-public.crt') && obj.fileExists('webserver-cert-private.key')) {
r.webdefault = { cert: obj.fileLoad('webserver-cert-public.crt', 'utf8'), key: obj.decryptPrivateKey(obj.fileLoad('webserver-cert-private.key', 'utf8')) };
if (obj.checkCertificate(r.webdefault.cert, r.webdefault.key) == false) { delete r.webdefault; }
}
if (args.tlsoffload) {
// If the web certificate already exist, load it. Load just the certificate since we are in TLS offload situation
if (obj.fileExists('webserver-cert-public.crt')) {
r.web = { cert: obj.fileLoad('webserver-cert-public.crt', 'utf8') };
if (obj.checkCertificate(r.web.cert, null) == false) { delete r.web; } else { rcount++; }
}
} else {
// If the web certificate already exist, load it. Load both certificate and private key
if (obj.fileExists('webserver-cert-public.crt') && obj.decryptPrivateKey(obj.fileExists('webserver-cert-private.key'))) {
r.web = { cert: obj.fileLoad('webserver-cert-public.crt', 'utf8'), key: obj.decryptPrivateKey(obj.fileLoad('webserver-cert-private.key', 'utf8')) };
if (obj.checkCertificate(r.web.cert, r.web.key) == false) { delete r.web; } else { rcount++; }
}
}
// If the mps certificate already exist, load it
if (obj.fileExists('mpsserver-cert-public.crt') && obj.fileExists('mpsserver-cert-private.key')) {
r.mps = { cert: obj.fileLoad('mpsserver-cert-public.crt', 'utf8'), key: obj.decryptPrivateKey(obj.fileLoad('mpsserver-cert-private.key', 'utf8')) };
if (obj.checkCertificate(r.mps.cert, r.mps.key) == false) { delete r.mps; } else { rcount++; }
}
// If the agent certificate already exist, load it
if (obj.fileExists("agentserver-cert-public.crt") && obj.fileExists("agentserver-cert-private.key")) {
r.agent = { cert: obj.fileLoad("agentserver-cert-public.crt", 'utf8'), key: obj.decryptPrivateKey(obj.fileLoad("agentserver-cert-private.key", 'utf8')) };
if (obj.checkCertificate(r.agent.cert, r.agent.key) == false) { delete r.agent; } else { rcount++; }
}
// If the code signing certificate already exist, load it
if (obj.fileExists("codesign-cert-public.crt") && obj.fileExists("codesign-cert-private.key")) {
r.codesign = { cert: obj.fileLoad("codesign-cert-public.crt", 'utf8'), key: obj.decryptPrivateKey(obj.fileLoad("codesign-cert-private.key", 'utf8')) };
if (obj.checkCertificate(r.codesign.cert, r.codesign.key) == false) { delete r.codesign; } else { rcount++; }
} else {
// If we are reading certificates from a database or vault and are just missing the code signing cert, skip it.
if (parent.configurationFiles != null) { rcount++; }
}
// If the swarm server certificate exist, load it (This is an optional certificate)
if (obj.fileExists('swarmserver-cert-public.crt') && obj.fileExists('swarmserver-cert-private.key')) {
r.swarmserver = { cert: obj.fileLoad('swarmserver-cert-public.crt', 'utf8'), key: obj.decryptPrivateKey(obj.fileLoad('swarmserver-cert-private.key', 'utf8')) };
if (obj.checkCertificate(r.swarmserver.cert, r.swarmserver.key) == false) { delete r.swarmserver; }
}
// If the swarm server root certificate exist, load it (This is an optional certificate)
if (obj.fileExists('swarmserverroot-cert-public.crt')) {
r.swarmserverroot = { cert: obj.fileLoad('swarmserverroot-cert-public.crt', 'utf8') };
if (obj.checkCertificate(r.swarmserverroot.cert, null) == false) { delete r.swarmserverroot; }
}
// If CA certificates are present, load them
do {
caok = false;
if (obj.fileExists('webserver-cert-chain' + caindex + '.crt')) {
calist.push(obj.fileLoad('webserver-cert-chain' + caindex + '.crt', 'utf8'));
caok = true;
}
caindex++;
} while (caok === true);
if (r.web != null) { r.web.ca = calist; }
// Decode certificate arguments
var commonName = 'un-configured';
var country = null;
var organization = null;
var forceWebCertGen = 0;
var forceMpsCertGen = 0;
if (certargs != undefined) {
var xargs = certargs.split(',');
if (xargs.length > 0) { commonName = xargs[0]; }
if (xargs.length > 1) { country = xargs[1]; }
if (xargs.length > 2) { organization = xargs[2]; }
}
// Decode MPS certificate arguments, this is for the Intel AMT CIRA server
var mpsCommonName = ((config.settings != null) && (typeof config.settings.mpsaliashost == 'string')) ? config.settings.mpsaliashost : commonName;
var mpsCountry = country;
var mpsOrganization = organization;
if (mpscertargs !== undefined) {
var xxargs = mpscertargs.split(',');
if (xxargs.length > 0) { mpsCommonName = xxargs[0]; }
if (xxargs.length > 1) { mpsCountry = xxargs[1]; }
if (xxargs.length > 2) { mpsOrganization = xxargs[2]; }
}
if (rcount === rcountmax) {
// Fetch the certificates names for the main certificate
r.AmtMpsName = obj.pki.certificateFromPem(r.mps.cert).subject.getField('CN').value;
var webCertificate = obj.pki.certificateFromPem(r.web.cert);
r.WebIssuer = webCertificate.issuer.getField('CN').value;
r.CommonName = webCertificate.subject.getField('CN').value;
r.CommonNames = [ r.CommonName ];
var altNames = webCertificate.getExtension('subjectAltName');
if (altNames) {
for (i = 0; i < altNames.altNames.length; i++) {
if ((altNames.altNames[i] != null) && (altNames.altNames[i].type === 2) && (typeof altNames.altNames[i].value === 'string')) {
var acn = altNames.altNames[i].value.toLowerCase();
if (r.CommonNames.indexOf(acn) == -1) { r.CommonNames.push(acn); }
}
}
}
var rootCertificate = obj.pki.certificateFromPem(r.root.cert);
r.RootName = rootCertificate.subject.getField('CN').value;
// If the "cert" name is not set, try to use the certificate CN instead (ok if the certificate is not wildcard).
if (commonName == 'un-configured') {
if (r.CommonName.startsWith('*.')) { console.log("ERROR: Must specify a server full domain name in Config.json->Settings->Cert when using a wildcard certificate."); process.exit(0); return; }
commonName = r.CommonName;
}
}
// Look for domains that have DNS names and load their certificates
r.dns = {};
for (i in config.domains) {
if ((i != '') && (config.domains[i] != null) && (config.domains[i].dns != null)) {
dnsname = config.domains[i].dns;
// Check if this domain matches a parent wildcard cert, if so, use the parent cert.
if (obj.compareCertificateNames(r.CommonNames, dnsname) == true) {
r.dns[i] = { cert: obj.fileLoad('webserver-cert-public.crt', 'utf8'), key: obj.decryptPrivateKey(obj.fileLoad('webserver-cert-private.key', 'utf8')) };
} else {
if (args.tlsoffload) {
// If the web certificate already exist, load it. Load just the certificate since we are in TLS offload situation
if (obj.fileExists('webserver-' + i + '-cert-public.crt')) {
r.dns[i] = { cert: obj.fileLoad('webserver-' + i + '-cert-public.crt', 'utf8') };
config.domains[i].certs = r.dns[i];
} else {
console.log("WARNING: File \"webserver-" + i + "-cert-public.crt\" missing, domain \"" + i + "\" will not work correctly.");
}
} else {
// If the web certificate already exist, load it. Load both certificate and private key
if (obj.fileExists('webserver-' + i + '-cert-public.crt') && obj.fileExists('webserver-' + i + '-cert-private.key')) {
r.dns[i] = { cert: obj.fileLoad('webserver-' + i + '-cert-public.crt', 'utf8'), key: obj.decryptPrivateKey(obj.fileLoad('webserver-' + i + '-cert-private.key', 'utf8')) };
config.domains[i].certs = r.dns[i];
// If CA certificates are present, load them
caindex = 1;
r.dns[i].ca = [];
do {
caok = false;
if (obj.fileExists('webserver-' + i + '-cert-chain' + caindex + '.crt')) {
r.dns[i].ca.push(obj.fileLoad('webserver-' + i + '-cert-chain' + caindex + '.crt', 'utf8'));
caok = true;
}
caindex++;
} while (caok === true);
} else {
rcountmax++; // This certificate must be generated
}
}
}
}
}
// If we have all the certificates we need, stop here.
if (rcount === rcountmax) {
if ((certargs == null) && (mpscertargs == null)) { if (func != undefined) { func(r); } return r; } // If no certificate arguments are given, keep the certificate
var xcountry, xcountryField = webCertificate.subject.getField('C');
if (xcountryField != null) { xcountry = xcountryField.value; }
var xorganization, xorganizationField = webCertificate.subject.getField('O');
if (xorganizationField != null) { xorganization = xorganizationField.value; }
if (certargs == null) { commonName = r.CommonName; country = xcountry; organization = xorganization; }
// Check if we have correct certificates.
if (obj.compareCertificateNames(r.CommonNames, commonName) == false) { console.log("Error: " + commonName + " does not match name in TLS certificate: " + r.CommonNames.join(', ')); forceWebCertGen = 1; } else { r.CommonName = commonName; }
if (r.AmtMpsName != mpsCommonName) { forceMpsCertGen = 1; }
if (args.keepcerts == true) { forceWebCertGen = 0; forceMpsCertGen = 0; r.CommonName = commonName; }
// If the certificates matches what we want, use them.
if ((forceWebCertGen == 0) && (forceMpsCertGen == 0)) {
if (func !== null) { func(r); }
return r;
}
}
if (parent.configurationFiles != null) {
console.log("Error: Vault/Database missing some certificates.");
if (r.root == null) { console.log(' Code signing certificate is missing.'); }
if (r.web == null) { console.log(' HTTPS web certificate is missing.'); }
if (r.mps == null) { console.log(' Intel AMT MPS certificate is missing.'); }
if (r.agent == null) { console.log(' Server agent authentication certificate is missing.'); }
if (r.codesign == null) { console.log(' Agent code signing certificate is missing.'); }
process.exit(0);
return null;
}
console.log("Generating certificates, may take a few minutes...");
parent.updateServerState('state', 'generatingcertificates');
// If a certificate is missing, but web certificate is present and --cert is not used, set the names to be the same as the web certificate
if ((certargs == null) && (r.web != null)) {
var webCertificate = obj.pki.certificateFromPem(r.web.cert);
commonName = webCertificate.subject.getField('CN').value;
var xcountryField = webCertificate.subject.getField('C');
if (xcountryField != null) { country = xcountryField.value; }
var xorganizationField = webCertificate.subject.getField('O');
if (xorganizationField != null) { organization = xorganizationField.value; }
}
var rootCertAndKey, rootCertificate, rootPrivateKey, rootName;
if (r.root == null) {
// If the root certificate does not exist, create one
console.log("Generating root certificate...");
if (typeof args.rootcertcommonname == 'string') {
// If a root certificate common name is specified, use it.
rootCertAndKey = obj.GenerateRootCertificate(false, args.rootcertcommonname, null, null, strongCertificate);
} else {
// A root certificate common name is not specified, use the default one.
rootCertAndKey = obj.GenerateRootCertificate(true, 'MeshCentralRoot', null, null, strongCertificate);
}
rootCertificate = obj.pki.certificateToPem(rootCertAndKey.cert);
rootPrivateKey = obj.pki.privateKeyToPem(rootCertAndKey.key);
parent.common.moveOldFiles([parent.getConfigFilePath('root-cert-public.crt'), parent.getConfigFilePath('root-cert-private.key')]);
obj.fs.writeFileSync(parent.getConfigFilePath('root-cert-public.crt'), rootCertificate);
obj.fs.writeFileSync(parent.getConfigFilePath('root-cert-private.key'), rootPrivateKey);
} else {
// Keep the root certificate we have
rootCertAndKey = { cert: obj.pki.certificateFromPem(r.root.cert), key: obj.pki.privateKeyFromPem(r.root.key) };
rootCertificate = r.root.cert;
rootPrivateKey = r.root.key;
}
var rootName = rootCertAndKey.cert.subject.getField('CN').value;
// If the web certificate does not exist, create one
var webCertAndKey, webCertificate, webPrivateKey;
if ((r.web == null) || (forceWebCertGen === 1)) {
console.log("Generating HTTPS certificate...");
webCertAndKey = obj.IssueWebServerCertificate(rootCertAndKey, false, commonName, country, organization, null, strongCertificate);
webCertificate = obj.pki.certificateToPem(webCertAndKey.cert);
webPrivateKey = obj.pki.privateKeyToPem(webCertAndKey.key);
parent.common.moveOldFiles([parent.getConfigFilePath('webserver-cert-public.crt'), parent.getConfigFilePath('webserver-cert-private.key')]);
obj.fs.writeFileSync(parent.getConfigFilePath('webserver-cert-public.crt'), webCertificate);
obj.fs.writeFileSync(parent.getConfigFilePath('webserver-cert-private.key'), webPrivateKey);
} else {
// Keep the console certificate we have
if (args.tlsoffload) {
webCertAndKey = { cert: obj.pki.certificateFromPem(r.web.cert) };
webCertificate = r.web.cert;
} else {
webCertAndKey = { cert: obj.pki.certificateFromPem(r.web.cert), key: obj.pki.privateKeyFromPem(r.web.key) };
webCertificate = r.web.cert;
webPrivateKey = r.web.key;
}
}
var webIssuer = webCertAndKey.cert.issuer.getField('CN').value;
// If the mesh agent server certificate does not exist, create one
var agentCertAndKey, agentCertificate, agentPrivateKey;
if (r.agent == null) {
console.log("Generating MeshAgent certificate...");
agentCertAndKey = obj.IssueWebServerCertificate(rootCertAndKey, true, 'MeshCentralAgentServer', country, organization, { }, strongCertificate);
agentCertificate = obj.pki.certificateToPem(agentCertAndKey.cert);
agentPrivateKey = obj.pki.privateKeyToPem(agentCertAndKey.key);
parent.common.moveOldFiles([parent.getConfigFilePath('agentserver-cert-public.crt'), parent.getConfigFilePath('agentserver-cert-private.key')]);
obj.fs.writeFileSync(parent.getConfigFilePath('agentserver-cert-public.crt'), agentCertificate);
obj.fs.writeFileSync(parent.getConfigFilePath('agentserver-cert-private.key'), agentPrivateKey);
} else {
// Keep the mesh agent server certificate we have
agentCertAndKey = { cert: obj.pki.certificateFromPem(r.agent.cert), key: obj.pki.privateKeyFromPem(r.agent.key) };
agentCertificate = r.agent.cert;
agentPrivateKey = r.agent.key;
}
// If the code signing certificate does not exist, create one
var codesignCertAndKey, codesignCertificate, codesignPrivateKey;
if (r.codesign == null) {
console.log("Generating code signing certificate...");
codesignCertAndKey = obj.IssueWebServerCertificate(rootCertAndKey, true, commonName, country, organization, { codeSign: true }, strongCertificate);
codesignCertificate = obj.pki.certificateToPem(codesignCertAndKey.cert);
codesignPrivateKey = obj.pki.privateKeyToPem(codesignCertAndKey.key);
parent.common.moveOldFiles([parent.getConfigFilePath('codesign-cert-public.crt'), parent.getConfigFilePath('codesign-cert-private.key')]);
obj.fs.writeFileSync(parent.getConfigFilePath('codesign-cert-public.crt'), codesignCertificate);
obj.fs.writeFileSync(parent.getConfigFilePath('codesign-cert-private.key'), codesignPrivateKey);
} else {
// Keep the code signing certificate we have
codesignCertAndKey = { cert: obj.pki.certificateFromPem(r.codesign.cert), key: obj.pki.privateKeyFromPem(r.codesign.key) };
codesignCertificate = r.codesign.cert;
codesignPrivateKey = r.codesign.key;
}
// If the Intel AMT MPS certificate does not exist, create one
var mpsCertAndKey, mpsCertificate, mpsPrivateKey;
if ((r.mps == null) || (forceMpsCertGen === 1)) {
console.log("Generating Intel AMT MPS certificate...");
mpsCertAndKey = obj.IssueWebServerCertificate(rootCertAndKey, false, mpsCommonName, mpsCountry, mpsOrganization, null, false);
mpsCertificate = obj.pki.certificateToPem(mpsCertAndKey.cert);
mpsPrivateKey = obj.pki.privateKeyToPem(mpsCertAndKey.key);
parent.common.moveOldFiles([parent.getConfigFilePath('mpsserver-cert-public.crt'), parent.getConfigFilePath('mpsserver-cert-private.key')]);
obj.fs.writeFileSync(parent.getConfigFilePath('mpsserver-cert-public.crt'), mpsCertificate);
obj.fs.writeFileSync(parent.getConfigFilePath('mpsserver-cert-private.key'), mpsPrivateKey);
} else {
// Keep the console certificate we have
mpsCertAndKey = { cert: obj.pki.certificateFromPem(r.mps.cert), key: obj.pki.privateKeyFromPem(r.mps.key) };
mpsCertificate = r.mps.cert;
mpsPrivateKey = r.mps.key;
}
r = { root: { cert: rootCertificate, key: rootPrivateKey }, web: { cert: webCertificate, key: webPrivateKey, ca: [] }, webdefault: { cert: webCertificate, key: webPrivateKey, ca: [] }, mps: { cert: mpsCertificate, key: mpsPrivateKey }, agent: { cert: agentCertificate, key: agentPrivateKey }, codesign: { cert: codesignCertificate, key: codesignPrivateKey }, ca: calist, CommonName: commonName, RootName: rootName, AmtMpsName: mpsCommonName, dns: {}, WebIssuer: webIssuer };
// Fetch the certificates names for the main certificate
var webCertificate = obj.pki.certificateFromPem(r.web.cert);
r.WebIssuer = webCertificate.issuer.getField('CN').value;
r.CommonName = webCertificate.subject.getField('CN').value;
if (r.CommonName.startsWith('*.')) {
if (commonName.indexOf('.') == -1) { console.log("ERROR: Must specify a server full domain name in Config.json->Settings->Cert when using a wildcard certificate."); process.exit(0); return; }
if (commonName.startsWith('*.')) { console.log("ERROR: Server can't use a wildcard name: " + commonName); process.exit(0); return; }
r.CommonName = commonName;
}
r.CommonNames = [r.CommonName.toLowerCase()];
var altNames = webCertificate.getExtension('subjectAltName');
if (altNames) {
for (i = 0; i < altNames.altNames.length; i++) {
if ((altNames.altNames[i] != null) && (altNames.altNames[i].type === 2) && (typeof altNames.altNames[i].value === 'string')) {
var acn = altNames.altNames[i].value.toLowerCase();
if (r.CommonNames.indexOf(acn) == -1) { r.CommonNames.push(acn); }
}
}
}
var rootCertificate = obj.pki.certificateFromPem(r.root.cert);
r.RootName = rootCertificate.subject.getField('CN').value;
// Look for domains with DNS names that have no certificates and generated them.
for (i in config.domains) {
if ((i != '') && (config.domains[i] != null) && (config.domains[i].dns != null)) {
dnsname = config.domains[i].dns;
// Check if this domain matches a parent wildcard cert, if so, use the parent cert.
if (obj.compareCertificateNames(r.CommonNames, dnsname) == true) {
r.dns[i] = { cert: obj.fileLoad('webserver-cert-public.crt', 'utf8'), key: obj.decryptPrivateKey(obj.fileLoad('webserver-cert-private.key', 'utf8')) };
} else {
if (!args.tlsoffload) {
// If the web certificate does not exist, create it
if ((obj.fileExists('webserver-' + i + '-cert-public.crt') === false) || (obj.fileExists('webserver-' + i + '-cert-private.key') === false)) {
console.log('Generating HTTPS certificate for ' + i + '...');
var xwebCertAndKey = obj.IssueWebServerCertificate(rootCertAndKey, false, dnsname, country, organization, null, strongCertificate);
var xwebCertificate = obj.pki.certificateToPem(xwebCertAndKey.cert);
var xwebPrivateKey = obj.pki.privateKeyToPem(xwebCertAndKey.key);
parent.common.moveOldFiles([ parent.getConfigFilePath('webserver-' + i + '-cert-public.crt'), parent.getConfigFilePath('webserver-' + i + '-cert-private.key') ]);
obj.fs.writeFileSync(parent.getConfigFilePath('webserver-' + i + '-cert-public.crt'), xwebCertificate);
obj.fs.writeFileSync(parent.getConfigFilePath('webserver-' + i + '-cert-private.key'), xwebPrivateKey);
r.dns[i] = { cert: xwebCertificate, key: xwebPrivateKey };
config.domains[i].certs = r.dns[i];
// If CA certificates are present, load them
caindex = 1;
r.dns[i].ca = [];
do {
caok = false;
if (obj.fileExists('webserver-' + i + '-cert-chain' + caindex + '.crt')) {
r.dns[i].ca.push(fixEndOfLines(obj.fs.readFileSync(parent.getConfigFilePath('webserver-' + i + '-cert-chain' + caindex + '.crt'), 'utf8')));
caok = true;
}
caindex++;
} while (caok === true);
}
}
}
}
}
// If the swarm server certificate exist, load it (This is an optional certificate)
if (obj.fileExists('swarmserver-cert-public.crt') && obj.fileExists('swarmserver-cert-private.key')) {
r.swarmserver = { cert: fixEndOfLines(obj.fs.readFileSync(parent.getConfigFilePath('swarmserver-cert-public.crt'), 'utf8')), key: fixEndOfLines(obj.fs.readFileSync(parent.getConfigFilePath("swarmserver-cert-private.key"), 'utf8')) };
}
// If the swarm server root certificate exist, load it (This is an optional certificate)
if (obj.fileExists('swarmserverroot-cert-public.crt')) {
r.swarmserverroot = { cert: fixEndOfLines(obj.fs.readFileSync(parent.getConfigFilePath('swarmserverroot-cert-public.crt'), 'utf8')) };
}
// If CA certificates are present, load them
if (r.web != null) {
caindex = 1;
r.web.ca = [];
do {
caok = false;
if (obj.fileExists('webserver-cert-chain' + caindex + '.crt')) {
r.web.ca.push(fixEndOfLines(obj.fs.readFileSync(parent.getConfigFilePath('webserver-cert-chain' + caindex + '.crt'), 'utf8')));
caok = true;
}
caindex++;
} while (caok === true);
}
if (func != undefined) { func(r); }
return r;
};
// Accelerators, used to dispatch work to other processes
const fork = require('child_process').fork;
const program = require('path').join(__dirname, 'meshaccelerator.js');
const acceleratorTotalCount = require('os').cpus().length; // TODO: Check if this accelerator can scale.
var acceleratorCreateCount = acceleratorTotalCount;
var freeAccelerators = [];
var pendingAccelerator = [];
obj.acceleratorCertStore = null;
// Accelerator Stats
var getAcceleratorFuncCalls = 0;
var acceleratorStartFuncCall = 0;
var acceleratorPerformSignatureFuncCall = 0;
var acceleratorPerformSignaturePushFuncCall = 0;
var acceleratorPerformSignatureRunFuncCall = 0;
var acceleratorMessage = 0;
var acceleratorMessageException = 0;
var acceleratorMessageLastException = null;
var acceleratorException = 0;
var acceleratorLastException = null;
// Get stats about the accelerators
obj.getAcceleratorStats = function () {
return {
acceleratorTotalCount: acceleratorTotalCount,
acceleratorCreateCount: acceleratorCreateCount,
freeAccelerators: freeAccelerators.length,
pendingAccelerator: pendingAccelerator.length,
getAcceleratorFuncCalls: getAcceleratorFuncCalls,
startFuncCall: acceleratorStartFuncCall,
performSignatureFuncCall: acceleratorPerformSignatureFuncCall,
performSignaturePushFuncCall: acceleratorPerformSignaturePushFuncCall,
performSignatureRunFuncCall: acceleratorPerformSignatureRunFuncCall,
message: acceleratorMessage,
messageException: acceleratorMessageException,
messageLastException: acceleratorMessageLastException,
exception: acceleratorException,
lastException: acceleratorLastException
};
}
// Create a new accelerator module
obj.getAccelerator = function () {
getAcceleratorFuncCalls++;
if (obj.acceleratorCertStore == null) { return null; }
if (freeAccelerators.length > 0) { return freeAccelerators.pop(); }
if (acceleratorCreateCount > 0) {
acceleratorCreateCount--;
var accelerator = fork(program, [], { stdio: ['pipe', 'pipe', 'pipe', 'ipc'] });
accelerator.accid = acceleratorCreateCount;
accelerator.on('message', function (message) {
acceleratorMessage++;
if (this.x.func) { this.x.func(this.x.tag, message); }
delete this.x;
if (pendingAccelerator.length > 0) { this.send(this.x = pendingAccelerator.shift()); } else { freeAccelerators.push(this); }
});
accelerator.on('exit', function (code) {
if (this.x) { pendingAccelerator.push(this.x); delete this.x; }
acceleratorCreateCount++;
if (pendingAccelerator.length > 0) { var acc = obj.getAccelerator(); acc.send(acc.x = pendingAccelerator.shift()); }
});
accelerator.on('error', function (code) { }); // Not sure if somethign should be done here to help kill the process.
accelerator.send({ action: 'setState', certs: obj.acceleratorCertStore });
return accelerator;
}
return null;
};
// Set the state of the accelerators. This way, we don"t have to send certificate & keys to them each time.
obj.acceleratorStart = function (certificates) {
acceleratorStartFuncCall++;
if (obj.acceleratorCertStore != null) { console.error("ERROR: Accelerators can only be started once."); return; }
obj.acceleratorCertStore = [{ cert: certificates.agent.cert, key: certificates.agent.key }];
if (certificates.swarmserver != null) { obj.acceleratorCertStore.push({ cert: certificates.swarmserver.cert, key: certificates.swarmserver.key }); }
};
// Perform any RSA signature, just pass in the private key and data.
obj.acceleratorPerformSignature = function (privatekey, data, tag, func) {
acceleratorPerformSignatureFuncCall++;
if (acceleratorTotalCount <= 1) {
// No accelerators available
if (typeof privatekey == 'number') { privatekey = obj.acceleratorCertStore[privatekey].key; }
const sign = obj.crypto.createSign('SHA384');
sign.end(Buffer.from(data, 'binary'));
try { func(tag, sign.sign(privatekey).toString('binary')); } catch (ex) { acceleratorMessageException++; acceleratorMessageLastException = ex; }
} else {
var acc = obj.getAccelerator();
if (acc == null) {
// Add to pending accelerator workload
acceleratorPerformSignaturePushFuncCall++;
pendingAccelerator.push({ action: 'sign', key: privatekey, data: data, tag: tag, func: func });
} else {
// Send to accelerator now
acceleratorPerformSignatureRunFuncCall++;
acc.send(acc.x = { action: 'sign', key: privatekey, data: data, tag: tag, func: func });
}
}
};
// Perform any general operation
obj.acceleratorPerformOperation = function (operation, data, tag, func) {
if (acceleratorTotalCount <= 1) {
// No accelerators available
require(program).processMessage({ action: operation, data: data, tag: tag, func: func });
} else {
var acc = obj.getAccelerator();
if (acc == null) {
// Add to pending accelerator workload
acceleratorPerformSignaturePushFuncCall++;
pendingAccelerator.push({ action: operation, data: data, tag: tag, func: func });
} else {
// Send to accelerator now
acceleratorPerformSignatureRunFuncCall++;
acc.send(acc.x = { action: operation, data: data, tag: tag, func: func });
}
}
};
return obj;
};
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