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dns-suite.js
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Merge branch 'v1' into 'master' 

V1

See merge request !1
This commit is contained in:
AJ ONeal 2017-04-07 00:06:14 +00:00
parent c0338ef3fa d00f83c625
commit d43696b54e
16 changed files with 631 additions and 11 deletions
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38
packer/type.ns.js Normal file
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(function (exports) {
'use strict';
// NS name for the supplied domain. May be label, pointer or any combination
exports.DNS_PACKER_TYPE_NS = function (ab, dv, total, record) {
if(!record.data){
throw new Error("no data on NS record");
}
var nsLen = 0;
var rdLenIndex = total;
total +=2;
// RDATA
// a sequence of labels
record.data.split('.').forEach(function(label) {
nsLen += 1 + label.length;
dv.setUint8(total, label.length, false);
total += 1;
label.split('').forEach(function (ch){
dv.setUint8(total, ch.charCodeAt(0), false);
total += 1;
});
});
// RDLENGTH
dv.setUint16(rdLenIndex, record.data.length + 1, false);
return total;
};
}('undefined' !== typeof window ? window : exports));

37
packer/type.ptr.js Normal file
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(function (exports) {
'use strict';
// The host name that represents the supplied UP address
// May be a label, pointer or any combination
exports.DNS_PACKER_TYPE_PTR = function (ab, dv, total, record) {
if (!record.data) {
throw new Error("no data for PTR record");
}
var ptrLen = 0;
var rdLenIndex = total;
total += 2;
// RDATA
// a sequence of labels
record.data.split('.').forEach(function (label){
console.log("the labels are: " + label);
ptrLen += 1 + label.length;
dv.setUint8(total, label.length, false);
total += 1;
label.split('').forEach(function (ch){
dv.setUint8(total, ch.charCodeAt(0), false);
total += 1;
});
});
// RDLENGTH
dv.setUint16(rdLenIndex, record.data.length + 1, false);
return total;
};
}('undefined' !== typeof window ? window : exports));

87
packer/type.soa.js Normal file
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(function (exports) {
'use strict';
// Value Meaning/Use
// Primary NS Variable length. The name of the Primary Master for the domain. May be a label, pointer, or any combination
// Admin MB Variable length. The administrator's mailbox. May be a label, pointer, or any combination
// Serial Number Unsigned 32-bit integer
// Refresh Interval Unsigned 32-bit integer
// Retry Interval Unsigned 32-bit integer
// Expiration Limit Unsigned 32-bit integer
// Minimum TTL Unsigned 32-bit integer
exports.DNS_PACKER_TYPE_SOA = function (ab, dv, total, record) {
if(!record.name_server){
throw new Error("no name server for SOA record");
}
if(!record.email_addr){
throw new Error("ne email address for SOA record");
}
if(!record.sn){
throw new Error("no serial number for SOA record");
}
if(!record.ref){
throw new Error("no serial number for SOA record");
}
if(!record.ret){
throw new Error("no serial number for SOA record");
}
if(!record.ex){
throw new Error("no serial number for SOA record");
}
if(!record.nx){
throw new Error("no serial number for SOA record");
}
var soaLen = 20; // take into account sn, ref, ret, ex, and nx
// (32-bits each. 4Bytes * 5 = 20)
var rdLenIndex = total;
total += 2; // Save space for RDLENGTH
// pack name_server which is a sequence of labels
record.name_server.split('.').forEach(function(label){
soaLen += 1 + label.length;
dv.setUint8(total, label.length, false);
total += 1;
label.split('').forEach(function(ch) {
dv.setUint8(total, ch.charCodeAt(0), false);
total += 1;
});
});
// pack email address which is a sequence of labels
record.email_addr.split('.').forEach(function (label){
soaLen += 1 + label.length;
dv.setUint8(total, label.length, false);
total += 1;
label.split('').forEach(function (ch){
dv.setUint8(total, ch.charCodeAt(0), false);
total += 1;
});
});
// pack all 32-bit values
dv.setUint32(total, parseInt(record.sn, 10), false);
total+=4;
dv.setUint32(total, parseInt(record.ref, 10), false);
total+=4;
dv.setUint32(total, parseInt(record.ret, 10), false);
total+=4;
dv.setUint32(total, parseInt(record.ex, 10), false);
total+=4;
dv.setUint32(total, parseInt(record.nx, 10), false);
total+=4;
// RDLENGTH
dv.setUint16(rdLenIndex, soaLen, false);
return total;
};
}('undefined' !== typeof window ? window : exports));

69
packer/type.srv.js Normal file
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(function (exports) {
'use strict';
// SRV RDATA contains:
// Priority: The relative priority of this service. 16-bit (range 0-65535)
// Weight: Used when more than one serivice has the same priority. 16-bit
// (range 0-65535)
// Port: Port number assigned to the symbolic service. 16-bit (range 0-65535)
// Target: The name of the host that will provide service.
exports.DNS_PACKER_TYPE_SRV = function (ab, dv, total, record) {
// maybe these should be changed to 'hasOwnProperty' for all of these
// TODO: Check that number is in range 1-64k
if (!record.priority){
throw new Error("no priority for SRV record");
}
if (!record.hasOwnProperty('weight')){
throw new Error("no weight for SRV record");
}
if (!record.port){
throw new Error("no port for SRV record");
}
if (!record.target) {
throw new Error("no target for SRV record");
}
// console.log("record length, priority, weight, port, then target");
// console.log("record priority is: " + record.priority);
// console.log("record weight is: " + record.weight);
// console.log("record port is: " + record.port);
// console.log("record target is: " + record.target);
// console.log("total length currently is: " + total);
var srvLen = 6; // 16-bit priority, weight and port = 6 Bytes
var rdLenIndex = total;
total+=2; // space for RDLENGTH
dv.setUint16(total, parseInt(record.priority, 10), false);
total+=2;
dv.setUint16(total,parseInt(record.weight, 10), false);
total+=2;
dv.setUint16(total, parseInt(record.port, 10), false);
total+=2;
record.target.split('.').forEach(function (label){
srvLen += 1 + label.length;
dv.setUint8(total, label.length, false);
total += 1;
label.split('').forEach(function (ch) {
dv.setUint8(total, ch.charCodeAt(0), false);
total += 1;
});
});
// RDLENGTH
dv.setUint16(rdLenIndex, srvLen, false);
return total;
};
}('undefined' !== typeof window ? window : exports));

43
packer/type.txt.js Normal file
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(function (exports) {
'use strict';
// Record type is just any text.
exports.DNS_PACKER_TYPE_TXT = function (ab, dv, total, record) {
if (!record.data){
throw new Error("no data for TXT record");
}
var txtLen = 0;
var rdLenIndex = total;
total += 3;
// RDATA
console.log("what is my record data: " + typeof record.data[0]);
console.log("what are my labels? ");
// var res = record.data[0].split(" ");
// console.log("Res: " + res);
console.log("for each rdata");
record.data.forEach(function(str){
str.split('').forEach(function(ch){
txtLen += 1;
// console.log(chcim);
dv.setUint8(total, ch.charCodeAt(0), false);
total += 1;
});
});
console.log("txt rdata length is: " + txtLen);
dv.setUint16(rdLenIndex, txtLen+1, false);
dv.setUint8(rdLenIndex+2, txtLen, false);
// total +=1;
return total;
};
}('undefined' !== typeof window ? window : exports));

51
parser/type.soa.js
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(function (exports) { (function (exports) {
'use strict'; 'use strict';
// TODO. Not yet implemented
// Value Meaning/Use // Value Meaning/Use
// Primary NS Variable length. The name of the Primary Master for the domain. May be a label, pointer, or any combination // Primary NS Variable length. The name of the Primary Master for the domain. May be a label, pointer, or any combination
// Admin MB Variable length. The administrator's mailbox. May be a label, pointer, or any combination // Admin MB Variable length. The administrator's mailbox. May be a label, pointer, or any combination
// Serial Number Unsigned 32-bit integer // Serial Number Unsigned 32-bit integer
// Refresh Interval Unsigned 32-bit integer // Refresh Interval Unsigned 32-bit integer
// Retry Interval Unsigned 32-bit integer // Retry Interval Unsigned 32-bit integer
// Retry Interval Unsigned 32-bit integer
// Expiration Limit Unsigned 32-bit integer // Expiration Limit Unsigned 32-bit integer
// Minimum TTL Unsigned 32-bit integer // Minimum TTL Unsigned 32-bit integer
var unpackLabels = exports.DNS_UNPACK_LABELS || require('../dns.unpack-labels.js').DNS_UNPACK_LABELS;
exports.DNS_PARSER_TYPE_SOA = function (ab, packet, record) { exports.DNS_PARSER_TYPE_SOA = function (ab, packet, record) {
var rdataAb = ab.slice(record.rdstart, record.rdstart + record.rdlength);
var dv = new DataView(rdataAb);
// we need this information for this parser
var cpcount = unpackLabels(new Uint8Array(ab), record.rdstart, { byteLength: 0, cpcount: 0, labels: [], name: '' }).cpcount;
var offset = unpackLabels(new Uint8Array(ab), record.rdstart, { byteLength: 0, cpcount: 0, labels: [], name: '' }).byteLength;
var labels = unpackLabels(new Uint8Array(ab), record.rdstart, { byteLength: 0, cpcount: 0, labels: [], name: '' }).labels;
// Primary NS
record.name_server = unpackLabels(new Uint8Array(ab), record.rdstart, { byteLength: 0, cpcount: 0, labels: [], name: '' }).name;
// if there exists compression pointers in the rdata
if (cpcount > 0){
// do something awesome with compression pointers to get the email address
// I need the length of all the data before the email address starts.
// if there are compression pointers then there will be a byte to indicate the length of each label, the label,
// then there will be a compression pointer to grab the longest label.
var start = 2; // start or email_addr. take into account compression pointer and address length
for(var i = 0; i < labels.length; i++){
// increase start by the label length. the +1 is to take into account the next label size byte
start = start + labels[i].length + 1;
// check for cpcount. 2 counts behind
if(parseInt(dv.getUint8(start - 2), 10) === 192){
record.email_addr = unpackLabels(new Uint8Array(ab), record.rdstart + start ,{ byteLength: 0, cpcount: 0, labels: [], name: '' }).name;
}
}
} // if there are no compression pointers, we can get the email address directly from the offset
else {
record.email_addr = unpackLabels(new Uint8Array(ab), record.rdstart + offset, { byteLength: 0, cpcount: 0, labels: [], name: '' }).name;
}
// Serial Number
record.sn = dv.getUint32(dv.byteLength - 20, false);
// Refresh Interval
record.ref = dv.getUint32(dv.byteLength - 16, false);
// Retry Interval
record.ret = dv.getUint32(dv.byteLength - 12, false);
// Expiration Limit
record.ex = dv.getUint32(dv.byteLength - 8, false);
// Minimum TTL
record.nx = dv.getUint32(dv.byteLength - 4, false);
return record;
}; };
}('undefined' !== typeof window ? window : exports)); }('undefined' !== typeof window ? window : exports));

1
parser/type.srv.js
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(function (exports) { (function (exports) {
'use strict'; 'use strict';
// TODO. Not yet implemented
// SRV identifies the host(s) that will support a particular service. It // SRV identifies the host(s) that will support a particular service. It
// is a general purpose RR to discover any service. // is a general purpose RR to discover any service.

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test/soa_test/google.com.soa.0.bin Normal file
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63
test/soa_test/google.com.soa.0.json Normal file
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{
"header": {
"id": 52080,
"qr": 1,
"opcode": 0,
"aa": 0,
"tc": 0,
"rd": 1,
"ra": 1,
"res1": 0,
"res2": 0,
"res3": 0,
"rcode": 0
},
"qdcount": 1,
"ancount": 1,
"nscount": 0,
"arcount": 0,
"question": [
{
"name": "google.com",
"type": 6,
"typeName": "SOA",
"class": 1,
"className": "IN",
"byteLength": 16,
"labels": [
"google",
"com"
],
"cpcount": 0
}
],
"answer": [
{
"name": "google.com",
"type": 6,
"typeName": "SOA",
"class": 1,
"className": "IN",
"byteLength": 50,
"labels": [
"google",
"com"
],
"cpcount": 1,
"rdstart": 40,
"rdlength": 38,
"ttl": 59,
"name_server": "ns3.google.com",
"email_addr": "dns-admin.google.com",
"sn": 150355194,
"ref": 900,
"ret": 900,
"ex": 1800,
"nx": 60
}
],
"authority": [],
"edns_options": [],
"additional": [],
"byteLength": 78
}

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test/soa_test/google.com.soa.query.bin Normal file
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test/soa_test/google.com.soa.query.json Normal file
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{
"header": {
"id": 52080,
"qr": 0,
"opcode": 0,
"aa": 0,
"tc": 0,
"rd": 1,
"ra": 0,
"rcode": 0
},
"question": [
{
"name": "google.com",
"typeName": "SOA",
"className": "IN"
}
]
}

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test/txt_test/google.com.txt.0.json Normal file
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{
"header": {
"id": 430,
"qr": 1,
"opcode": 0,
"aa": 0,
"tc": 0,
"rd": 1,
"ra": 1,
"res1": 0,
"res2": 0,
"res3": 0,
"rcode": 0
},
"qdcount": 1,
"ancount": 1,
"nscount": 4,
"arcount": 4,
"question": [
{
"name": "google.com",
"type": 16,
"typeName": "TXT",
"class": 1,
"className": "IN",
"byteLength": 16,
"labels": [
"google",
"com"
],
"cpcount": 0
}
],
"answer": [
{
"name": "google.com",
"type": 16,
"typeName": "TXT",
"class": 1,
"className": "IN",
"byteLength": 48,
"labels": [
"google",
"com"
],
"cpcount": 1,
"rdstart": 40,
"rdlength": 36,
"ttl": 2930,
"data": [
"v=spf1 include:_spf.google.com ~all"
]
}
],
"authority": [
{
"name": "google.com",
"type": 2,
"typeName": "NS",
"class": 1,
"className": "IN",
"byteLength": 18,
"labels": [
"google",
"com"
],
"cpcount": 1,
"rdstart": 88,
"rdlength": 6,
"ttl": 82790,
"data": "ns3.google.com"
},
{
"name": "google.com",
"type": 2,
"typeName": "NS",
"class": 1,
"className": "IN",
"byteLength": 18,
"labels": [
"google",
"com"
],
"cpcount": 1,
"rdstart": 106,
"rdlength": 6,
"ttl": 82790,
"data": "ns4.google.com"
},
{
"name": "google.com",
"type": 2,
"typeName": "NS",
"class": 1,
"className": "IN",
"byteLength": 18,
"labels": [
"google",
"com"
],
"cpcount": 1,
"rdstart": 124,
"rdlength": 6,
"ttl": 82790,
"data": "ns1.google.com"
},
{
"name": "google.com",
"type": 2,
"typeName": "NS",
"class": 1,
"className": "IN",
"byteLength": 18,
"labels": [
"google",
"com"
],
"cpcount": 1,
"rdstart": 142,
"rdlength": 6,
"ttl": 82790,
"data": "ns2.google.com"
}
],
"edns_options": [],
"additional": [
{
"name": "ns1.google.com",
"type": 1,
"typeName": "A",
"class": 1,
"className": "IN",
"byteLength": 16,
"labels": [
"ns1",
"google",
"com"
],
"cpcount": 2,
"rdstart": 160,
"rdlength": 4,
"ttl": 255588,
"address": "216.239.32.10"
},
{
"name": "ns2.google.com",
"type": 1,
"typeName": "A",
"class": 1,
"className": "IN",
"byteLength": 16,
"labels": [
"ns2",
"google",
"com"
],
"cpcount": 2,
"rdstart": 176,
"rdlength": 4,
"ttl": 255577,
"address": "216.239.34.10"
},
{
"name": "ns3.google.com",
"type": 1,
"typeName": "A",
"class": 1,
"className": "IN",
"byteLength": 16,
"labels": [
"ns3",
"google",
"com"
],
"cpcount": 2,
"rdstart": 192,
"rdlength": 4,
"ttl": 255599,
"address": "216.239.36.10"
},
{
"name": "ns4.google.com",
"type": 1,
"typeName": "A",
"class": 1,
"className": "IN",
"byteLength": 16,
"labels": [
"ns4",
"google",
"com"
],
"cpcount": 2,
"rdstart": 208,
"rdlength": 4,
"ttl": 255595,
"address": "216.239.38.10"
}
],
"byteLength": 212
}

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test/txt_test/google.com.txt.query.json Normal file
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{
"header": {
"id": 430,
"qr": 0,
"opcode": 0,
"aa": 0,
"tc": 0,
"rd": 1,
"ra": 0,
"rcode": 0
},
"question": [
{
"name": "google.com",
"typeName": "TXT",
"className": "IN"
}
]
}