Compare commits
No commits in common. "master" and "v1.2.2" have entirely different histories.
@ -1,8 +0,0 @@
|
|||||||
{
|
|
||||||
"bracketSpacing": true,
|
|
||||||
"printWidth": 80,
|
|
||||||
"singleQuote": true,
|
|
||||||
"tabWidth": 4,
|
|
||||||
"trailingComma": "none",
|
|
||||||
"useTabs": true
|
|
||||||
}
|
|
||||||
@ -1,3 +0,0 @@
|
|||||||
v1.2.10 - Tested with dig.js, deployed to production with digd.js
|
|
||||||
* Parses and packs common record types including:
|
|
||||||
* A,AAAA,CAA,CNAME,MX,NS,PTR,SOA,SRV,TXT
|
|
||||||
375
LICENSE
375
LICENSE
@ -1,375 +0,0 @@
|
|||||||
Copyright 2015-2019 AJ ONeal
|
|
||||||
|
|
||||||
Mozilla Public License Version 2.0
|
|
||||||
==================================
|
|
||||||
|
|
||||||
1. Definitions
|
|
||||||
--------------
|
|
||||||
|
|
||||||
1.1. "Contributor"
|
|
||||||
means each individual or legal entity that creates, contributes to
|
|
||||||
the creation of, or owns Covered Software.
|
|
||||||
|
|
||||||
1.2. "Contributor Version"
|
|
||||||
means the combination of the Contributions of others (if any) used
|
|
||||||
by a Contributor and that particular Contributor's Contribution.
|
|
||||||
|
|
||||||
1.3. "Contribution"
|
|
||||||
means Covered Software of a particular Contributor.
|
|
||||||
|
|
||||||
1.4. "Covered Software"
|
|
||||||
means Source Code Form to which the initial Contributor has attached
|
|
||||||
the notice in Exhibit A, the Executable Form of such Source Code
|
|
||||||
Form, and Modifications of such Source Code Form, in each case
|
|
||||||
including portions thereof.
|
|
||||||
|
|
||||||
1.5. "Incompatible With Secondary Licenses"
|
|
||||||
means
|
|
||||||
|
|
||||||
(a) that the initial Contributor has attached the notice described
|
|
||||||
in Exhibit B to the Covered Software; or
|
|
||||||
|
|
||||||
(b) that the Covered Software was made available under the terms of
|
|
||||||
version 1.1 or earlier of the License, but not also under the
|
|
||||||
terms of a Secondary License.
|
|
||||||
|
|
||||||
1.6. "Executable Form"
|
|
||||||
means any form of the work other than Source Code Form.
|
|
||||||
|
|
||||||
1.7. "Larger Work"
|
|
||||||
means a work that combines Covered Software with other material, in
|
|
||||||
a separate file or files, that is not Covered Software.
|
|
||||||
|
|
||||||
1.8. "License"
|
|
||||||
means this document.
|
|
||||||
|
|
||||||
1.9. "Licensable"
|
|
||||||
means having the right to grant, to the maximum extent possible,
|
|
||||||
whether at the time of the initial grant or subsequently, any and
|
|
||||||
all of the rights conveyed by this License.
|
|
||||||
|
|
||||||
1.10. "Modifications"
|
|
||||||
means any of the following:
|
|
||||||
|
|
||||||
(a) any file in Source Code Form that results from an addition to,
|
|
||||||
deletion from, or modification of the contents of Covered
|
|
||||||
Software; or
|
|
||||||
|
|
||||||
(b) any new file in Source Code Form that contains any Covered
|
|
||||||
Software.
|
|
||||||
|
|
||||||
1.11. "Patent Claims" of a Contributor
|
|
||||||
means any patent claim(s), including without limitation, method,
|
|
||||||
process, and apparatus claims, in any patent Licensable by such
|
|
||||||
Contributor that would be infringed, but for the grant of the
|
|
||||||
License, by the making, using, selling, offering for sale, having
|
|
||||||
made, import, or transfer of either its Contributions or its
|
|
||||||
Contributor Version.
|
|
||||||
|
|
||||||
1.12. "Secondary License"
|
|
||||||
means either the GNU General Public License, Version 2.0, the GNU
|
|
||||||
Lesser General Public License, Version 2.1, the GNU Affero General
|
|
||||||
Public License, Version 3.0, or any later versions of those
|
|
||||||
licenses.
|
|
||||||
|
|
||||||
1.13. "Source Code Form"
|
|
||||||
means the form of the work preferred for making modifications.
|
|
||||||
|
|
||||||
1.14. "You" (or "Your")
|
|
||||||
means an individual or a legal entity exercising rights under this
|
|
||||||
License. For legal entities, "You" includes any entity that
|
|
||||||
controls, is controlled by, or is under common control with You. For
|
|
||||||
purposes of this definition, "control" means (a) the power, direct
|
|
||||||
or indirect, to cause the direction or management of such entity,
|
|
||||||
whether by contract or otherwise, or (b) ownership of more than
|
|
||||||
fifty percent (50%) of the outstanding shares or beneficial
|
|
||||||
ownership of such entity.
|
|
||||||
|
|
||||||
2. License Grants and Conditions
|
|
||||||
--------------------------------
|
|
||||||
|
|
||||||
2.1. Grants
|
|
||||||
|
|
||||||
Each Contributor hereby grants You a world-wide, royalty-free,
|
|
||||||
non-exclusive license:
|
|
||||||
|
|
||||||
(a) under intellectual property rights (other than patent or trademark)
|
|
||||||
Licensable by such Contributor to use, reproduce, make available,
|
|
||||||
modify, display, perform, distribute, and otherwise exploit its
|
|
||||||
Contributions, either on an unmodified basis, with Modifications, or
|
|
||||||
as part of a Larger Work; and
|
|
||||||
|
|
||||||
(b) under Patent Claims of such Contributor to make, use, sell, offer
|
|
||||||
for sale, have made, import, and otherwise transfer either its
|
|
||||||
Contributions or its Contributor Version.
|
|
||||||
|
|
||||||
2.2. Effective Date
|
|
||||||
|
|
||||||
The licenses granted in Section 2.1 with respect to any Contribution
|
|
||||||
become effective for each Contribution on the date the Contributor first
|
|
||||||
distributes such Contribution.
|
|
||||||
|
|
||||||
2.3. Limitations on Grant Scope
|
|
||||||
|
|
||||||
The licenses granted in this Section 2 are the only rights granted under
|
|
||||||
this License. No additional rights or licenses will be implied from the
|
|
||||||
distribution or licensing of Covered Software under this License.
|
|
||||||
Notwithstanding Section 2.1(b) above, no patent license is granted by a
|
|
||||||
Contributor:
|
|
||||||
|
|
||||||
(a) for any code that a Contributor has removed from Covered Software;
|
|
||||||
or
|
|
||||||
|
|
||||||
(b) for infringements caused by: (i) Your and any other third party's
|
|
||||||
modifications of Covered Software, or (ii) the combination of its
|
|
||||||
Contributions with other software (except as part of its Contributor
|
|
||||||
Version); or
|
|
||||||
|
|
||||||
(c) under Patent Claims infringed by Covered Software in the absence of
|
|
||||||
its Contributions.
|
|
||||||
|
|
||||||
This License does not grant any rights in the trademarks, service marks,
|
|
||||||
or logos of any Contributor (except as may be necessary to comply with
|
|
||||||
the notice requirements in Section 3.4).
|
|
||||||
|
|
||||||
2.4. Subsequent Licenses
|
|
||||||
|
|
||||||
No Contributor makes additional grants as a result of Your choice to
|
|
||||||
distribute the Covered Software under a subsequent version of this
|
|
||||||
License (see Section 10.2) or under the terms of a Secondary License (if
|
|
||||||
permitted under the terms of Section 3.3).
|
|
||||||
|
|
||||||
2.5. Representation
|
|
||||||
|
|
||||||
Each Contributor represents that the Contributor believes its
|
|
||||||
Contributions are its original creation(s) or it has sufficient rights
|
|
||||||
to grant the rights to its Contributions conveyed by this License.
|
|
||||||
|
|
||||||
2.6. Fair Use
|
|
||||||
|
|
||||||
This License is not intended to limit any rights You have under
|
|
||||||
applicable copyright doctrines of fair use, fair dealing, or other
|
|
||||||
equivalents.
|
|
||||||
|
|
||||||
2.7. Conditions
|
|
||||||
|
|
||||||
Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
|
|
||||||
in Section 2.1.
|
|
||||||
|
|
||||||
3. Responsibilities
|
|
||||||
-------------------
|
|
||||||
|
|
||||||
3.1. Distribution of Source Form
|
|
||||||
|
|
||||||
All distribution of Covered Software in Source Code Form, including any
|
|
||||||
Modifications that You create or to which You contribute, must be under
|
|
||||||
the terms of this License. You must inform recipients that the Source
|
|
||||||
Code Form of the Covered Software is governed by the terms of this
|
|
||||||
License, and how they can obtain a copy of this License. You may not
|
|
||||||
attempt to alter or restrict the recipients' rights in the Source Code
|
|
||||||
Form.
|
|
||||||
|
|
||||||
3.2. Distribution of Executable Form
|
|
||||||
|
|
||||||
If You distribute Covered Software in Executable Form then:
|
|
||||||
|
|
||||||
(a) such Covered Software must also be made available in Source Code
|
|
||||||
Form, as described in Section 3.1, and You must inform recipients of
|
|
||||||
the Executable Form how they can obtain a copy of such Source Code
|
|
||||||
Form by reasonable means in a timely manner, at a charge no more
|
|
||||||
than the cost of distribution to the recipient; and
|
|
||||||
|
|
||||||
(b) You may distribute such Executable Form under the terms of this
|
|
||||||
License, or sublicense it under different terms, provided that the
|
|
||||||
license for the Executable Form does not attempt to limit or alter
|
|
||||||
the recipients' rights in the Source Code Form under this License.
|
|
||||||
|
|
||||||
3.3. Distribution of a Larger Work
|
|
||||||
|
|
||||||
You may create and distribute a Larger Work under terms of Your choice,
|
|
||||||
provided that You also comply with the requirements of this License for
|
|
||||||
the Covered Software. If the Larger Work is a combination of Covered
|
|
||||||
Software with a work governed by one or more Secondary Licenses, and the
|
|
||||||
Covered Software is not Incompatible With Secondary Licenses, this
|
|
||||||
License permits You to additionally distribute such Covered Software
|
|
||||||
under the terms of such Secondary License(s), so that the recipient of
|
|
||||||
the Larger Work may, at their option, further distribute the Covered
|
|
||||||
Software under the terms of either this License or such Secondary
|
|
||||||
License(s).
|
|
||||||
|
|
||||||
3.4. Notices
|
|
||||||
|
|
||||||
You may not remove or alter the substance of any license notices
|
|
||||||
(including copyright notices, patent notices, disclaimers of warranty,
|
|
||||||
or limitations of liability) contained within the Source Code Form of
|
|
||||||
the Covered Software, except that You may alter any license notices to
|
|
||||||
the extent required to remedy known factual inaccuracies.
|
|
||||||
|
|
||||||
3.5. Application of Additional Terms
|
|
||||||
|
|
||||||
You may choose to offer, and to charge a fee for, warranty, support,
|
|
||||||
indemnity or liability obligations to one or more recipients of Covered
|
|
||||||
Software. However, You may do so only on Your own behalf, and not on
|
|
||||||
behalf of any Contributor. You must make it absolutely clear that any
|
|
||||||
such warranty, support, indemnity, or liability obligation is offered by
|
|
||||||
You alone, and You hereby agree to indemnify every Contributor for any
|
|
||||||
liability incurred by such Contributor as a result of warranty, support,
|
|
||||||
indemnity or liability terms You offer. You may include additional
|
|
||||||
disclaimers of warranty and limitations of liability specific to any
|
|
||||||
jurisdiction.
|
|
||||||
|
|
||||||
4. Inability to Comply Due to Statute or Regulation
|
|
||||||
---------------------------------------------------
|
|
||||||
|
|
||||||
If it is impossible for You to comply with any of the terms of this
|
|
||||||
License with respect to some or all of the Covered Software due to
|
|
||||||
statute, judicial order, or regulation then You must: (a) comply with
|
|
||||||
the terms of this License to the maximum extent possible; and (b)
|
|
||||||
describe the limitations and the code they affect. Such description must
|
|
||||||
be placed in a text file included with all distributions of the Covered
|
|
||||||
Software under this License. Except to the extent prohibited by statute
|
|
||||||
or regulation, such description must be sufficiently detailed for a
|
|
||||||
recipient of ordinary skill to be able to understand it.
|
|
||||||
|
|
||||||
5. Termination
|
|
||||||
--------------
|
|
||||||
|
|
||||||
5.1. The rights granted under this License will terminate automatically
|
|
||||||
if You fail to comply with any of its terms. However, if You become
|
|
||||||
compliant, then the rights granted under this License from a particular
|
|
||||||
Contributor are reinstated (a) provisionally, unless and until such
|
|
||||||
Contributor explicitly and finally terminates Your grants, and (b) on an
|
|
||||||
ongoing basis, if such Contributor fails to notify You of the
|
|
||||||
non-compliance by some reasonable means prior to 60 days after You have
|
|
||||||
come back into compliance. Moreover, Your grants from a particular
|
|
||||||
Contributor are reinstated on an ongoing basis if such Contributor
|
|
||||||
notifies You of the non-compliance by some reasonable means, this is the
|
|
||||||
first time You have received notice of non-compliance with this License
|
|
||||||
from such Contributor, and You become compliant prior to 30 days after
|
|
||||||
Your receipt of the notice.
|
|
||||||
|
|
||||||
5.2. If You initiate litigation against any entity by asserting a patent
|
|
||||||
infringement claim (excluding declaratory judgment actions,
|
|
||||||
counter-claims, and cross-claims) alleging that a Contributor Version
|
|
||||||
directly or indirectly infringes any patent, then the rights granted to
|
|
||||||
You by any and all Contributors for the Covered Software under Section
|
|
||||||
2.1 of this License shall terminate.
|
|
||||||
|
|
||||||
5.3. In the event of termination under Sections 5.1 or 5.2 above, all
|
|
||||||
end user license agreements (excluding distributors and resellers) which
|
|
||||||
have been validly granted by You or Your distributors under this License
|
|
||||||
prior to termination shall survive termination.
|
|
||||||
|
|
||||||
************************************************************************
|
|
||||||
* *
|
|
||||||
* 6. Disclaimer of Warranty *
|
|
||||||
* ------------------------- *
|
|
||||||
* *
|
|
||||||
* Covered Software is provided under this License on an "as is" *
|
|
||||||
* basis, without warranty of any kind, either expressed, implied, or *
|
|
||||||
* statutory, including, without limitation, warranties that the *
|
|
||||||
* Covered Software is free of defects, merchantable, fit for a *
|
|
||||||
* particular purpose or non-infringing. The entire risk as to the *
|
|
||||||
* quality and performance of the Covered Software is with You. *
|
|
||||||
* Should any Covered Software prove defective in any respect, You *
|
|
||||||
* (not any Contributor) assume the cost of any necessary servicing, *
|
|
||||||
* repair, or correction. This disclaimer of warranty constitutes an *
|
|
||||||
* essential part of this License. No use of any Covered Software is *
|
|
||||||
* authorized under this License except under this disclaimer. *
|
|
||||||
* *
|
|
||||||
************************************************************************
|
|
||||||
|
|
||||||
************************************************************************
|
|
||||||
* *
|
|
||||||
* 7. Limitation of Liability *
|
|
||||||
* -------------------------- *
|
|
||||||
* *
|
|
||||||
* Under no circumstances and under no legal theory, whether tort *
|
|
||||||
* (including negligence), contract, or otherwise, shall any *
|
|
||||||
* Contributor, or anyone who distributes Covered Software as *
|
|
||||||
* permitted above, be liable to You for any direct, indirect, *
|
|
||||||
* special, incidental, or consequential damages of any character *
|
|
||||||
* including, without limitation, damages for lost profits, loss of *
|
|
||||||
* goodwill, work stoppage, computer failure or malfunction, or any *
|
|
||||||
* and all other commercial damages or losses, even if such party *
|
|
||||||
* shall have been informed of the possibility of such damages. This *
|
|
||||||
* limitation of liability shall not apply to liability for death or *
|
|
||||||
* personal injury resulting from such party's negligence to the *
|
|
||||||
* extent applicable law prohibits such limitation. Some *
|
|
||||||
* jurisdictions do not allow the exclusion or limitation of *
|
|
||||||
* incidental or consequential damages, so this exclusion and *
|
|
||||||
* limitation may not apply to You. *
|
|
||||||
* *
|
|
||||||
************************************************************************
|
|
||||||
|
|
||||||
8. Litigation
|
|
||||||
-------------
|
|
||||||
|
|
||||||
Any litigation relating to this License may be brought only in the
|
|
||||||
courts of a jurisdiction where the defendant maintains its principal
|
|
||||||
place of business and such litigation shall be governed by laws of that
|
|
||||||
jurisdiction, without reference to its conflict-of-law provisions.
|
|
||||||
Nothing in this Section shall prevent a party's ability to bring
|
|
||||||
cross-claims or counter-claims.
|
|
||||||
|
|
||||||
9. Miscellaneous
|
|
||||||
----------------
|
|
||||||
|
|
||||||
This License represents the complete agreement concerning the subject
|
|
||||||
matter hereof. If any provision of this License is held to be
|
|
||||||
unenforceable, such provision shall be reformed only to the extent
|
|
||||||
necessary to make it enforceable. Any law or regulation which provides
|
|
||||||
that the language of a contract shall be construed against the drafter
|
|
||||||
shall not be used to construe this License against a Contributor.
|
|
||||||
|
|
||||||
10. Versions of the License
|
|
||||||
---------------------------
|
|
||||||
|
|
||||||
10.1. New Versions
|
|
||||||
|
|
||||||
Mozilla Foundation is the license steward. Except as provided in Section
|
|
||||||
10.3, no one other than the license steward has the right to modify or
|
|
||||||
publish new versions of this License. Each version will be given a
|
|
||||||
distinguishing version number.
|
|
||||||
|
|
||||||
10.2. Effect of New Versions
|
|
||||||
|
|
||||||
You may distribute the Covered Software under the terms of the version
|
|
||||||
of the License under which You originally received the Covered Software,
|
|
||||||
or under the terms of any subsequent version published by the license
|
|
||||||
steward.
|
|
||||||
|
|
||||||
10.3. Modified Versions
|
|
||||||
|
|
||||||
If you create software not governed by this License, and you want to
|
|
||||||
create a new license for such software, you may create and use a
|
|
||||||
modified version of this License if you rename the license and remove
|
|
||||||
any references to the name of the license steward (except to note that
|
|
||||||
such modified license differs from this License).
|
|
||||||
|
|
||||||
10.4. Distributing Source Code Form that is Incompatible With Secondary
|
|
||||||
Licenses
|
|
||||||
|
|
||||||
If You choose to distribute Source Code Form that is Incompatible With
|
|
||||||
Secondary Licenses under the terms of this version of the License, the
|
|
||||||
notice described in Exhibit B of this License must be attached.
|
|
||||||
|
|
||||||
Exhibit A - Source Code Form License Notice
|
|
||||||
-------------------------------------------
|
|
||||||
|
|
||||||
This Source Code Form is subject to the terms of the Mozilla Public
|
|
||||||
License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
||||||
file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
||||||
|
|
||||||
If it is not possible or desirable to put the notice in a particular
|
|
||||||
file, then You may include the notice in a location (such as a LICENSE
|
|
||||||
file in a relevant directory) where a recipient would be likely to look
|
|
||||||
for such a notice.
|
|
||||||
|
|
||||||
You may add additional accurate notices of copyright ownership.
|
|
||||||
|
|
||||||
Exhibit B - "Incompatible With Secondary Licenses" Notice
|
|
||||||
---------------------------------------------------------
|
|
||||||
|
|
||||||
This Source Code Form is "Incompatible With Secondary Licenses", as
|
|
||||||
defined by the Mozilla Public License, v. 2.0.
|
|
||||||
437
README.md
437
README.md
@ -1,96 +1,78 @@
|
|||||||
# [dns-suite.js](https://git.rootprojects.org/root/dns-suite.js)
|
dns-suite
|
||||||
|
========
|
||||||
|
|
||||||
| Built by [Root](https://rootprojects.org) for [Telebit](https://telebit.io) and [Hub](https://rootprojects.org/hub)
|
Fast, lightweight, and easy-to-extend **pure JavaScript** (ES5.1) implementation for DNS / mDNS.
|
||||||
|
|
||||||
| **dns-suite.js**
|
Works great in **Web Browsers** and in node.js!
|
||||||
| [dig.js](https://git.coolaj86.com/coolaj86/dig.js)
|
|
||||||
| [mdig.js](https://git.coolaj86.com/coolaj86/mdig.js)
|
|
||||||
| [digd.js](https://git.coolaj86.com/coolaj86/digd.js)
|
|
||||||
|
|
||||||
Fast, lightweight, and easy-to-extend Vanilla JS (ES5.1) implementation of DNS / mDNS for Node.js and Browsers.
|
Detailed error checking makes it great for
|
||||||
|
|
||||||
- [x] Full DNS Support
|
* capture
|
||||||
- [x] Queries
|
* packing (JSON to DNS/mDNS)
|
||||||
- [x] Answers
|
* parsing (DNS/mDNS to JSON)
|
||||||
- [x] Authority
|
* linting (finding errors in packets)
|
||||||
- [x] Additional
|
* debugging
|
||||||
- [x] Built for Debugging
|
|
||||||
- [x] capture
|
|
||||||
- [x] packing (JSON to DNS/mDNS)
|
|
||||||
- [x] parsing (DNS/mDNS to JSON)
|
|
||||||
- [x] linting (finding errors in packets)
|
|
||||||
|
|
||||||
Uses `DataView`, `Uint8Array`, `Uint16Array`, and `ArrayBuffer`
|
**No external dependencies** for node.js or modern browsers. Uses `DataView`, `Uint8Array`, `Uint16Array`, and `ArrayBuffer`
|
||||||
|
|
||||||
Similar API to `dns.js` and `native-dns-packet`.
|
Similar API to `dns.js` and `native-dns-packet`.
|
||||||
|
|
||||||
# Example Query
|
```json
|
||||||
|
{ "header": {
|
||||||
```js
|
"id": 5423
|
||||||
var DNSPacket = require('dns-suite').DNSPacket;
|
, "qr": 0
|
||||||
|
, "opcode": 0
|
||||||
var query = {
|
, "aa": 0
|
||||||
header: {
|
, "tc": 0
|
||||||
id: rnd,
|
, "rd": 1
|
||||||
qr: 0,
|
, "ra": 0
|
||||||
opcode: 0,
|
, "res1": 0
|
||||||
aa: 0,
|
, "res2": 0
|
||||||
rd: 1,
|
, "res3": 0
|
||||||
ra: 0,
|
, "rcode": 0
|
||||||
rcode: 0
|
}
|
||||||
},
|
, "question": [
|
||||||
question: [
|
{ "name": "bowie._sftp-ssh._tcp.local"
|
||||||
{
|
, "type": 1
|
||||||
name: 'google.com',
|
, "typeName": "A"
|
||||||
typeName: 'A',
|
, "class": 1
|
||||||
className: 'IN'
|
, "className": "IN"
|
||||||
|
, "byteLength": 32
|
||||||
}
|
}
|
||||||
]
|
]
|
||||||
};
|
, "answer": []
|
||||||
var buffer = DNSPacket.pack(query);
|
, "authority": []
|
||||||
```
|
, "additional": []
|
||||||
|
, "edns_options": []
|
||||||
# Example Response
|
, "byteLength": 44
|
||||||
|
|
||||||
```js
|
|
||||||
var DNSPacket = require('dns-suite').DNSPacket;
|
|
||||||
DNSPacket.parse(buffer);
|
|
||||||
```
|
|
||||||
|
|
||||||
```json
|
|
||||||
{
|
|
||||||
"header": {
|
|
||||||
"id": 5423,
|
|
||||||
"qr": 0,
|
|
||||||
"opcode": 0,
|
|
||||||
"aa": 0,
|
|
||||||
"tc": 0,
|
|
||||||
"rd": 1,
|
|
||||||
"ra": 0,
|
|
||||||
"res1": 0,
|
|
||||||
"res2": 0,
|
|
||||||
"res3": 0,
|
|
||||||
"rcode": 0
|
|
||||||
},
|
|
||||||
"question": [
|
|
||||||
{
|
|
||||||
"name": "bowie._sftp-ssh._tcp.local",
|
|
||||||
"type": 1,
|
|
||||||
"typeName": "A",
|
|
||||||
"class": 1,
|
|
||||||
"className": "IN",
|
|
||||||
"byteLength": 32
|
|
||||||
}
|
|
||||||
],
|
|
||||||
"answer": [],
|
|
||||||
"authority": [],
|
|
||||||
"additional": [],
|
|
||||||
"edns_options": [],
|
|
||||||
"byteLength": 44
|
|
||||||
}
|
}
|
||||||
```
|
```
|
||||||
|
|
||||||
## Install
|
Install with git
|
||||||
|
-------
|
||||||
|
|
||||||
|
You can use git to install v1.x like so:
|
||||||
|
|
||||||
|
```bash
|
||||||
|
# latest of v1.x
|
||||||
|
npm install 'git+https://git@git.daplie.com:Daplie/dns-suite#v1'
|
||||||
|
```
|
||||||
|
|
||||||
|
If you want to be more specific to v1.0.x or exactly v1.0.2 you can do so like this:
|
||||||
|
|
||||||
|
```
|
||||||
|
# latest of v1.0.x
|
||||||
|
npm install 'git+https://git@git.daplie.com:Daplie/dns-suite#v1.0'
|
||||||
|
|
||||||
|
# exactly v1.0.2
|
||||||
|
npm install 'git+https://git@git.daplie.com:Daplie/dns-suite#v1.0.2'
|
||||||
|
```
|
||||||
|
|
||||||
|
Install without git
|
||||||
|
-------
|
||||||
|
|
||||||
|
Don't have git? Well you can also bow down to the gods of the centralized, monopolized, concentrated, dictatornet
|
||||||
|
(as we like to call it here at Daplie Labs), if that's how you roll:
|
||||||
|
|
||||||
```
|
```
|
||||||
npm install --save dns-suite
|
npm install --save dns-suite
|
||||||
@ -99,13 +81,16 @@ npm install --save dns-suite
|
|||||||
**Test**:
|
**Test**:
|
||||||
|
|
||||||
```bash
|
```bash
|
||||||
node ./node_modules/dns-suite/examples/dns-pack.js
|
pushd node_modules/dns-suite
|
||||||
|
|
||||||
|
npm test
|
||||||
```
|
```
|
||||||
|
|
||||||
## Usage
|
Usage
|
||||||
|
-----
|
||||||
|
|
||||||
- CLI
|
* CLI
|
||||||
- API
|
* API
|
||||||
|
|
||||||
### CLI Usage
|
### CLI Usage
|
||||||
|
|
||||||
@ -115,11 +100,9 @@ When installed globally you can use these commands:
|
|||||||
dns-parse.js </path/to/packet.dns.bin> [out.json] # parses a saved DNS packet to JSON
|
dns-parse.js </path/to/packet.dns.bin> [out.json] # parses a saved DNS packet to JSON
|
||||||
dns-pack.js </path/to/packet.dns.json> [out.bin] # packs a JSON DNS packet to binary
|
dns-pack.js </path/to/packet.dns.json> [out.bin] # packs a JSON DNS packet to binary
|
||||||
dns-test.js </path/to/packet.dns(.json|.bin)> # convert a packet back and forth to test reciprocity of the packer and parser
|
dns-test.js </path/to/packet.dns(.json|.bin)> # convert a packet back and forth to test reciprocity of the packer and parser
|
||||||
|
mdns-capture.js <prefixname> [startnum] # listen and save all mDNS packets, numbering by sequence of arrival
|
||||||
```
|
```
|
||||||
|
|
||||||
For **capturing packets** you should use [`dig.js`](https://git.coolaj86.com/coolaj86/dig.js#options) with the `--output` option.
|
|
||||||
It can capture mDNS as well. See <https://git.coolaj86.com/coolaj86/dig.js#options>.
|
|
||||||
|
|
||||||
You can also access them directly from `node_modules/dns-suite` in a project:
|
You can also access them directly from `node_modules/dns-suite` in a project:
|
||||||
|
|
||||||
```bash
|
```bash
|
||||||
@ -128,12 +111,11 @@ node node_modules/dns-suite/bin/dns-parse.js node_modules/dns-suite/samples/a-0.
|
|||||||
|
|
||||||
### Library API
|
### Library API
|
||||||
|
|
||||||
- `DNSPacket.parse(nodeOrArrayBuffer)` returns json (as shown above)
|
* `DNSPacket.parse(nodeOrArrayBuffer)` returns json (as shown above)
|
||||||
- `DNSPacket.pack(packet)` returns ArrayBuffer (browser and node)
|
* `DNSPacket.pack(packet)` returns ArrayBuffer (browser and node)
|
||||||
- `DNSPacket.write(packet)` returns NodeBuffer (node only)
|
* `DNSPacket.write(packet)` returns NodeBuffer (node only)
|
||||||
|
|
||||||
node.js:
|
node.js:
|
||||||
|
|
||||||
```js
|
```js
|
||||||
var nodeBuffer = fs.readFileSync('./samples/a-0.mdns.bin');
|
var nodeBuffer = fs.readFileSync('./samples/a-0.mdns.bin');
|
||||||
var arrayBuffer = nodeBuffer.buffer;
|
var arrayBuffer = nodeBuffer.buffer;
|
||||||
@ -147,11 +129,8 @@ console.log(new Uint8Array(ab));
|
|||||||
```
|
```
|
||||||
|
|
||||||
Browser:
|
Browser:
|
||||||
|
|
||||||
```js
|
```js
|
||||||
var arrayBuffer = new Uint8Array.from([
|
var arrayBuffer = new Uint8Array.from([ /* bytes */ ]).buffer;
|
||||||
/* bytes */
|
|
||||||
]).buffer;
|
|
||||||
|
|
||||||
var packet = DNSPacket.parse(arrayBuffer);
|
var packet = DNSPacket.parse(arrayBuffer);
|
||||||
var ab = DNSPacket.pack(packet);
|
var ab = DNSPacket.pack(packet);
|
||||||
@ -160,259 +139,36 @@ console.log(packet);
|
|||||||
console.log(new Uint8Array(ab));
|
console.log(new Uint8Array(ab));
|
||||||
```
|
```
|
||||||
|
|
||||||
## Capturing Packets
|
|
||||||
|
|
||||||
We have a command line tool for that! See [dig.js](https://git.coolaj86.com/coolaj86/dig.js).
|
Capturing Packets
|
||||||
|
-----
|
||||||
|
|
||||||
```bash
|
We have a command line tool for that! See [dig.js](https://git.daplie.com/Daplie/dig.js).
|
||||||
|
|
||||||
|
```
|
||||||
# Install
|
# Install
|
||||||
npm install -g 'git+https://git.coolaj86.com/coolaj86/dig.js.git'
|
npm install -g 'git+https://git@git.daplie.com/Daplie/dig.js.git'
|
||||||
|
|
||||||
# Use with DNS
|
# Use with DNS
|
||||||
dig.js A coolaj86.com --output .
|
dig.js A daplie.com --output .
|
||||||
|
|
||||||
# Use with mDNS
|
# Use with mDNS
|
||||||
dig.js --mdns PTR _services._dns-sd._udp.local --output .
|
dig.js --mdns PTR _services._dns-sd._udp.local --output .
|
||||||
```
|
```
|
||||||
|
|
||||||
# Resource Record Examples
|
Contributing and Development
|
||||||
|
============================
|
||||||
|
|
||||||
- SOA
|
How to add a new parser
|
||||||
- NS
|
-----------------------
|
||||||
- A
|
|
||||||
- AAAA
|
|
||||||
- CNAME
|
|
||||||
- MX
|
|
||||||
- TXT
|
|
||||||
- SRV
|
|
||||||
- PTR
|
|
||||||
|
|
||||||
## SOA
|
|
||||||
|
|
||||||
I'm pretty sure that the SOA only goes in the `authority` section
|
|
||||||
(except when SOA is queried explicitly)
|
|
||||||
and that it's only given as a response to any empty set
|
|
||||||
(where `RCODE == NXDOMAIN`)
|
|
||||||
to affirm "yes, I am responsible for this domain but, no, I don't have a record for it".
|
|
||||||
|
|
||||||
If another nameserver has been delegated authority for a particular subdomain
|
|
||||||
a set of `NS` records should be returned instead.
|
|
||||||
|
|
||||||
```json
|
|
||||||
{
|
|
||||||
"name": "yahoo.com",
|
|
||||||
"type": 6,
|
|
||||||
"typeName": "SOA",
|
|
||||||
"class": 1,
|
|
||||||
"className": "IN",
|
|
||||||
"ttl": 599,
|
|
||||||
"primary": "ns1.yahoo.com",
|
|
||||||
"admin": "hostmaster.yahoo-inc.com",
|
|
||||||
"serial": 2017092539,
|
|
||||||
"refresh": 3600,
|
|
||||||
"retry": 300,
|
|
||||||
"expiration": 1814400,
|
|
||||||
"minimum": 600
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
## NS
|
|
||||||
|
|
||||||
I'm also pretty sure that the NS only goes in the `authority` section
|
|
||||||
(except when NS is queried explicitly)
|
|
||||||
and that it's given as a successful response
|
|
||||||
(`RCODE == SUCCESS`)
|
|
||||||
to any query type
|
|
||||||
(`A` or `AAAA`, `MX`, `TXT`, or `SRV`)
|
|
||||||
where the answer sections is an empty set because the records in
|
|
||||||
question have been delegated to another nameserver.
|
|
||||||
|
|
||||||
```json
|
|
||||||
{
|
|
||||||
"name": "google.com",
|
|
||||||
"type": 2,
|
|
||||||
"typeName": "NS",
|
|
||||||
"class": 1,
|
|
||||||
"className": "IN",
|
|
||||||
"ttl": 82790,
|
|
||||||
"data": "ns3.google.com"
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
## A
|
|
||||||
|
|
||||||
The most common type of record. Returns the IPv4 address for a given domain.
|
|
||||||
|
|
||||||
```json
|
|
||||||
{
|
|
||||||
"name": "www.linode.com",
|
|
||||||
"type": 1,
|
|
||||||
"typeName": "A",
|
|
||||||
"class": 1,
|
|
||||||
"className": "IN",
|
|
||||||
"ttl": 291,
|
|
||||||
"address": "72.14.191.202"
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
## AAAA
|
|
||||||
|
|
||||||
Returns the IPv6 address for a given domain.
|
|
||||||
|
|
||||||
```json
|
|
||||||
{
|
|
||||||
"name": "irc6.geo.oftc.net",
|
|
||||||
"type": 28,
|
|
||||||
"typeName": "AAAA",
|
|
||||||
"class": 1,
|
|
||||||
"className": "IN",
|
|
||||||
"ttl": 59,
|
|
||||||
"address": "2607:f8f0:610:4000:211:11ff:fe1c:7bec"
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
## CNAME
|
|
||||||
|
|
||||||
The CNAME is used to look up the IP address for the given alias.
|
|
||||||
(the alias is often referred to incorrectly as a CNAME but it is, in fact, the alias)
|
|
||||||
|
|
||||||
```json
|
|
||||||
{
|
|
||||||
"name": "www.nodejs.org",
|
|
||||||
"type": 5,
|
|
||||||
"typeName": "CNAME",
|
|
||||||
"class": 1,
|
|
||||||
"className": "IN",
|
|
||||||
"ttl": 3600,
|
|
||||||
"data": "nodejs.org"
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
## MX
|
|
||||||
|
|
||||||
Mail Exchange Records show the alias that should be looked up to know where incoming mail should
|
|
||||||
be sent.
|
|
||||||
|
|
||||||
```json
|
|
||||||
{
|
|
||||||
"name": "microsoft.com",
|
|
||||||
"type": 15,
|
|
||||||
"typeName": "MX",
|
|
||||||
"class": 1,
|
|
||||||
"className": "IN",
|
|
||||||
"ttl": 197,
|
|
||||||
"priority": 10,
|
|
||||||
"exchange": "microsoft-com.mail.protection.outlook.com"
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
## TXT
|
|
||||||
|
|
||||||
Often used for outgoing mail validations, public keys, lots of arbitrary stuff.
|
|
||||||
|
|
||||||
```json
|
|
||||||
{
|
|
||||||
"name": "aol.com",
|
|
||||||
"type": 16,
|
|
||||||
"typeName": "TXT",
|
|
||||||
"class": 1,
|
|
||||||
"className": "IN",
|
|
||||||
"ttl": 1926,
|
|
||||||
"data": ["v=spf1 ptr:mx.aol.com ?all"]
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
## SRV
|
|
||||||
|
|
||||||
A way to associate a service with a port and other relevant information.
|
|
||||||
Used for federated / dencentralized protocols (like XMPP) and mDNS/DLNA/UPnP/DNS-SD type stuff.
|
|
||||||
|
|
||||||
```json
|
|
||||||
{
|
|
||||||
"name": "_xmpp-server._tcp.gmail.com",
|
|
||||||
"type": 33,
|
|
||||||
"typeName": "SRV",
|
|
||||||
"class": 1,
|
|
||||||
"className": "IN",
|
|
||||||
"ttl": 900,
|
|
||||||
"priority": 5,
|
|
||||||
"weight": 0,
|
|
||||||
"port": 5269,
|
|
||||||
"target": "xmpp-server.l.google.com"
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
## PTR
|
|
||||||
|
|
||||||
Used for mDNS/DNS-SD type discoveries and anti-spam reverse lookup verification for mail servers.
|
|
||||||
|
|
||||||
```json
|
|
||||||
{
|
|
||||||
"name": "_pdl-datastream._tcp.local",
|
|
||||||
"type": 12,
|
|
||||||
"typeName": "PTR",
|
|
||||||
"class": 1,
|
|
||||||
"className": "IN",
|
|
||||||
"ttl": 255,
|
|
||||||
"data": "Canon MF620C Series._pdl-datastream._tcp.local"
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
## All Properties
|
|
||||||
|
|
||||||
For simplicity, here's a list of all properties, just for fun:
|
|
||||||
|
|
||||||
```js
|
|
||||||
{
|
|
||||||
// All RRs
|
|
||||||
"name": "example.com",
|
|
||||||
"type": 1,
|
|
||||||
"typeName": "A",
|
|
||||||
"class": 1,
|
|
||||||
"className": "IN",
|
|
||||||
"ttl": 600,
|
|
||||||
|
|
||||||
// SOA
|
|
||||||
"primary": "ns1.yahoo.com",
|
|
||||||
"admin": "hostmaster.yahoo-inc.com",
|
|
||||||
"serial": 2017092539,
|
|
||||||
"refresh": 3600,
|
|
||||||
"retry": 300,
|
|
||||||
"expiration": 1814400,
|
|
||||||
"minimum": 600,
|
|
||||||
|
|
||||||
// A, AAAA
|
|
||||||
"address": "72.14.191.202",
|
|
||||||
|
|
||||||
// CNAME, NS, PTR
|
|
||||||
"data": "ns3.google.com",
|
|
||||||
|
|
||||||
// TXT
|
|
||||||
// "data": [ "v=spf1 ptr:mx.aol.com ?all" ],
|
|
||||||
|
|
||||||
// MX
|
|
||||||
"priority": 10,
|
|
||||||
"exchange": "microsoft-com.mail.protection.outlook.com",
|
|
||||||
|
|
||||||
// SRV
|
|
||||||
"priority": 5,
|
|
||||||
"weight": 0,
|
|
||||||
"port": 5269,
|
|
||||||
"target": "xmpp-server.l.google.com"
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
# Contributing and Development
|
|
||||||
|
|
||||||
## How to add a new parser
|
|
||||||
|
|
||||||
Each RR (aka Resource Record or RData) parser is individual. Examples include:
|
Each RR (aka Resource Record or RData) parser is individual. Examples include:
|
||||||
|
|
||||||
- A (`parser/type.a.js`)
|
* A (`parser/type.a.js`)
|
||||||
- AAAA (`parser/type.aaaa.js`)
|
* AAAA (`parser/type.aaaa.js`)
|
||||||
- CNAME (`parser/type.cname.js`)
|
* CNAME (`parser/type.cname.js`)
|
||||||
- TXT (`parser/type.txt.js`)
|
* TXT (`parser/type.txt.js`)
|
||||||
- SRV (`parser/type.srv.js`)
|
* SRV (`parser/type.srv.js`)
|
||||||
|
|
||||||
Let's say that To create a parser for a type which we don't currently support,
|
Let's say that To create a parser for a type which we don't currently support,
|
||||||
just add the appropriate information to `dns.types.js` and create a file for
|
just add the appropriate information to `dns.types.js` and create a file for
|
||||||
@ -421,7 +177,7 @@ the name of the type in the format `parser/type.<typename>.js`.
|
|||||||
For example, if `CNAME` wasn't already supported and I wanted to add support for
|
For example, if `CNAME` wasn't already supported and I wanted to add support for
|
||||||
it I would follow these steps:
|
it I would follow these steps:
|
||||||
|
|
||||||
1. Update `dns.types.js` if it's not there already.
|
1) Update `dns.types.js` if it's not there already.
|
||||||
|
|
||||||
```
|
```
|
||||||
A: 0x01 // 1
|
A: 0x01 // 1
|
||||||
@ -430,7 +186,7 @@ it I would follow these steps:
|
|||||||
, SOA: 0x06 // 6
|
, SOA: 0x06 // 6
|
||||||
```
|
```
|
||||||
|
|
||||||
2. Capture a packet to `test/fixtures/<domain>.<tld>.<type>.bin`
|
2) Capture a packet to `test/fixtures/<domain>.<tld>.<type>.bin`
|
||||||
|
|
||||||
This will construct and send a DNS query and save the first result
|
This will construct and send a DNS query and save the first result
|
||||||
that comes back.
|
that comes back.
|
||||||
@ -444,11 +200,10 @@ Ideally you should have some idea of what the result file should look
|
|||||||
like and should place that in `test/fixtures/<domain>.<tld>.<type>.json`
|
like and should place that in `test/fixtures/<domain>.<tld>.<type>.json`
|
||||||
|
|
||||||
```bash
|
```bash
|
||||||
npm install -g dig.js
|
node bin/capture-query.js --name www.google.com --type CNAME
|
||||||
dig.js --name www.google.com --type CNAME --output ./samples/
|
|
||||||
```
|
```
|
||||||
|
|
||||||
3. Create `parser/type.cname.js`
|
3) Create `parser/type.cname.js`
|
||||||
|
|
||||||
Copy `parser/type.TEMPLATE.js` to the type for which you wish to create support
|
Copy `parser/type.TEMPLATE.js` to the type for which you wish to create support
|
||||||
(`parser/type.cname.js` in this example) and fill in the blanks.
|
(`parser/type.cname.js` in this example) and fill in the blanks.
|
||||||
@ -466,7 +221,7 @@ exports.DNS_PARSER_TYPE_CNAME = function (ab, packet, record) {
|
|||||||
}('undefined' !== typeof window ? window : exports));
|
}('undefined' !== typeof window ? window : exports));
|
||||||
```
|
```
|
||||||
|
|
||||||
4. Document what you've learned in `doc/<type>.txt`
|
4) Document what you've learned in `doc/<type>.txt`
|
||||||
|
|
||||||
You may be right or you might be wrong, but you might be right.
|
You may be right or you might be wrong, but you might be right.
|
||||||
|
|
||||||
@ -476,7 +231,7 @@ record type - tips, tricks, little-known facts, etc.
|
|||||||
This may help (or wildly mislead) others if there's a bug in your parser that they need to track down.
|
This may help (or wildly mislead) others if there's a bug in your parser that they need to track down.
|
||||||
At the very least someone can follow a few links you followed and your thought process.
|
At the very least someone can follow a few links you followed and your thought process.
|
||||||
|
|
||||||
5. Check that my changes include these files
|
5) Check that my changes include these files
|
||||||
|
|
||||||
```
|
```
|
||||||
├── README.md
|
├── README.md
|
||||||
|
|||||||
219
bin/debug.js
219
bin/debug.js
@ -1,219 +0,0 @@
|
|||||||
#!/usr/bin/env node
|
|
||||||
|
|
||||||
// node bin/debug.js ../dig.js/blar.DOEsNteXiST.AJ.OnEal.DAplIE.me.any.0.bin
|
|
||||||
// node bin/debugd.js ../dig.js/blar.DOEsNteXiST.AJ.OnEal.DAplIE.me.any.0.bin
|
|
||||||
// dig @localhost -p 65053 ANY DOEsNteXiST.AJ.OnEal.DAplIE.me
|
|
||||||
// dd if=../dig.js/blar.DOEsNteXiST.AJ.OnEal.DAplIE.me.any.0.bin of=blar.DOEsNteXiST.AJ.OnEal.DAplIE.me.any.0.trunc.bin bs=1 count=78
|
|
||||||
(function () {
|
|
||||||
'use strict';
|
|
||||||
|
|
||||||
var input = process.argv[2];
|
|
||||||
var fs = require('fs');
|
|
||||||
var nb = fs.readFileSync(input, null);
|
|
||||||
|
|
||||||
var ab = nb.buffer.slice(nb.byteOffset, nb.byteOffset + nb.byteLength);
|
|
||||||
var dv = new DataView(ab);
|
|
||||||
|
|
||||||
//
|
|
||||||
// read header
|
|
||||||
//
|
|
||||||
console.log('');
|
|
||||||
console.log('//////////////////');
|
|
||||||
console.log('// HEADER //');
|
|
||||||
console.log('//////////////////');
|
|
||||||
console.log('');
|
|
||||||
|
|
||||||
console.log('');
|
|
||||||
console.log('byte index 0x00');
|
|
||||||
console.log('');
|
|
||||||
|
|
||||||
console.log('id (int)', dv.getUint16(0));
|
|
||||||
|
|
||||||
var flags = dv.getUint16(2, false);
|
|
||||||
console.log('header 0x', flags.toString(16));
|
|
||||||
var flagsstr = ''
|
|
||||||
+ 'qr ' + ((flags & 0x8000) >> 15) + ', '
|
|
||||||
+ 'opcode ' + ((flags & 0x7800) >> 11) + ', '
|
|
||||||
+ 'aa ' + ((flags & 0x400) >> 10) + ', '
|
|
||||||
+ 'tc ' + ((flags & 0x200) >> 9) + ', '
|
|
||||||
+ 'rd ' + ((flags & 0x100) >> 8) + ', '
|
|
||||||
+ 'ra ' + ((flags & 0x80) >> 7) + ', '
|
|
||||||
+ 'res1 ' + ((flags & 0x40) >> 6) + ', '
|
|
||||||
+ 'res2 ' + ((flags & 0x20) >> 5) + ', '
|
|
||||||
+ 'res3 ' + ((flags & 0x10) >> 4) + ', '
|
|
||||||
+ 'rcode ' + ((flags & 0xF));
|
|
||||||
console.log('(flags: ' + flagsstr);
|
|
||||||
|
|
||||||
var qdcount = dv.getUint16(4, false); // query count
|
|
||||||
var ancount = dv.getUint16(6, false); // answer count
|
|
||||||
var nscount = dv.getUint16(8, false); // authority count
|
|
||||||
var arcount = dv.getUint16(10, false); // additional count
|
|
||||||
var count;
|
|
||||||
|
|
||||||
console.log('qdcount', qdcount);
|
|
||||||
console.log('ancount', ancount);
|
|
||||||
console.log('nscount', nscount);
|
|
||||||
console.log('arcount', arcount);
|
|
||||||
|
|
||||||
function unpackQuestionLabels(opts) {
|
|
||||||
var dv = opts.dv;
|
|
||||||
//var origTotal = opts.total;
|
|
||||||
var total = opts.total;
|
|
||||||
var len = opts.len;
|
|
||||||
var qnames = [];
|
|
||||||
var labelLen;
|
|
||||||
|
|
||||||
while (true) {
|
|
||||||
if (total >= len) {
|
|
||||||
opts.trunc = true;
|
|
||||||
console.warn('');
|
|
||||||
console.warn('[WARNING] The label was truncated by byte length of message or rdata.');
|
|
||||||
console.warn('[WARNING] Depending on the Resource Record type, that may be a parse error.');
|
|
||||||
console.warn('');
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
labelLen = dv.getUint8(total, false); // additional count
|
|
||||||
total += 1;
|
|
||||||
if (!labelLen) {
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
if (labelLen >= 0xc0) {
|
|
||||||
// (11 000000 & whatever) signifies pointer
|
|
||||||
// (00 111111 & whatever) bitmask for potentially large pointer
|
|
||||||
// (00 000001 11111111) largest realistic pointer value (512 byte message size)
|
|
||||||
var pointer = ((labelLen & 0x3f) << 8) | dv.getUint8(total, false);
|
|
||||||
console.log('Found a pointer to'
|
|
||||||
+ ' 0x' + pointer.toString(16) + ' (' + pointer + ')'
|
|
||||||
+ ' at byte index'
|
|
||||||
+ ' 0x' + leftPad(total.toString(16)) + ' (' + total + ')'
|
|
||||||
//+ ' which back-references:'
|
|
||||||
);
|
|
||||||
/*
|
|
||||||
console.log('-4', dv.getUint8(pointer - 4, false));
|
|
||||||
console.log('-3', dv.getUint8(pointer - 3, false));
|
|
||||||
console.log('-2', dv.getUint8(pointer - 2, false));
|
|
||||||
console.log('-1', dv.getUint8(pointer - 1, false));
|
|
||||||
console.log(' 0', dv.getUint8(pointer + 0, false));
|
|
||||||
console.log('+1', dv.getUint8(pointer + 1, false));
|
|
||||||
console.log('+2', dv.getUint8(pointer + 2, false));
|
|
||||||
console.log('bytes near the pointer itself (not what it points to) are:');
|
|
||||||
console.log('-2', dv.getUint8(total - 2, false));
|
|
||||||
console.log('-1', dv.getUint8(total - 1, false));
|
|
||||||
console.log(' 0', dv.getUint8(total + 0, false));
|
|
||||||
console.log('+1', dv.getUint8(total + 1, false));
|
|
||||||
console.log('+2', dv.getUint8(total + 2, false));
|
|
||||||
console.log('+3', dv.getUint8(total + 3, false));
|
|
||||||
console.log('+4', dv.getUint8(total + 4, false));
|
|
||||||
*/
|
|
||||||
//total += 1;
|
|
||||||
opts.cp = true;
|
|
||||||
qnames.push(unpackQuestionLabels({ dv: dv, total: pointer, len: len }).qname);
|
|
||||||
total += 1;
|
|
||||||
break;
|
|
||||||
} else {
|
|
||||||
var i;
|
|
||||||
var label = '';
|
|
||||||
console.log('label len', labelLen);
|
|
||||||
for (i = 0; i < labelLen; i += 1) {
|
|
||||||
//console.log('total:', total, i);
|
|
||||||
label += String.fromCharCode(dv.getUint8(total + i, false));
|
|
||||||
}
|
|
||||||
total += label.length;
|
|
||||||
console.log('label:', label);
|
|
||||||
qnames.push(label);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
return {
|
|
||||||
total: total
|
|
||||||
, qname: qnames.join('.')
|
|
||||||
};
|
|
||||||
}
|
|
||||||
|
|
||||||
function unpackQuestion(dv, total, len) {
|
|
||||||
|
|
||||||
var result = unpackQuestionLabels({ dv: dv, total: total, len: len });
|
|
||||||
|
|
||||||
// leading length and (potentially) trailing null
|
|
||||||
console.log('QNAME (len ' + (result.total - total) + '):', result.qname, result.cp ? '(pointer)' : '');
|
|
||||||
console.log('QTYPE (len 2):', dv.getUint16(result.total, false));
|
|
||||||
result.total += 2;
|
|
||||||
console.log('QCLASS (len 2):', dv.getUint16(result.total, false));
|
|
||||||
result.total += 2;
|
|
||||||
|
|
||||||
return result;
|
|
||||||
}
|
|
||||||
|
|
||||||
var q = { total: 12 };
|
|
||||||
function mapChar(ch) { return JSON.stringify(String.fromCharCode(ch)) + '(' + ch + ')'; }
|
|
||||||
function leftPad(ch) { ch = ch.toString(); while (ch.length < 2) { ch = '0' + ch; } return ch; }
|
|
||||||
|
|
||||||
|
|
||||||
console.log('');
|
|
||||||
console.log('//////////////////');
|
|
||||||
console.log('// QUESTION //');
|
|
||||||
console.log('//////////////////');
|
|
||||||
console.log('');
|
|
||||||
for (count = 0; count < qdcount; count += 1) {
|
|
||||||
console.log('');
|
|
||||||
console.log('Question ' + (count + 1) + ' of ' + qdcount + ' (byte index: 0x' + leftPad(q.total.toString(16)) + ' ' + q.total + ')');
|
|
||||||
q = unpackQuestion(dv, q.total, ab.byteLength);
|
|
||||||
console.log('');
|
|
||||||
}
|
|
||||||
|
|
||||||
function unpackResourceRecord(dv, q, ab) {
|
|
||||||
var _q = unpackQuestion(dv, q.total, ab.byteLength);
|
|
||||||
q.total = _q.total;
|
|
||||||
console.log('ttl (len 4):', dv.getUint32(q.total, false));
|
|
||||||
q.total += 4;
|
|
||||||
q.rdlength = dv.getUint16(q.total, false);
|
|
||||||
console.log('rdlen (len 2):', q.rdlength);
|
|
||||||
q.total += 2;
|
|
||||||
console.log('rrdata (len ' + q.rdlength + '):');
|
|
||||||
console.log([].slice.call(new Uint8Array(ab), q.total, q.total + q.rdlength).map(mapChar).join(' '));
|
|
||||||
q.total += q.rdlength;
|
|
||||||
console.log('');
|
|
||||||
}
|
|
||||||
|
|
||||||
console.log('');
|
|
||||||
console.log('//////////////////');
|
|
||||||
console.log('// ANSWER //');
|
|
||||||
console.log('//////////////////');
|
|
||||||
console.log('');
|
|
||||||
for (count = 0; count < ancount; count += 1) {
|
|
||||||
console.log('');
|
|
||||||
console.log('Answer', count + 1, 'of', ancount + ' (byte index: 0x' + q.total.toString(16) + ' ' + q.total + ')');
|
|
||||||
unpackResourceRecord(dv, q, ab);
|
|
||||||
console.log('');
|
|
||||||
}
|
|
||||||
|
|
||||||
console.log('');
|
|
||||||
console.log('//////////////////');
|
|
||||||
console.log('// AUTHORITY //');
|
|
||||||
console.log('//////////////////');
|
|
||||||
console.log('');
|
|
||||||
for (count = 0; count < nscount; count += 1) {
|
|
||||||
console.log('');
|
|
||||||
console.log('Authority', count + 1, 'of', nscount + ' (byte index: 0x' + q.total.toString(16) + ' ' + q.total + ')');
|
|
||||||
unpackResourceRecord(dv, q, ab);
|
|
||||||
console.log('');
|
|
||||||
}
|
|
||||||
|
|
||||||
console.log('');
|
|
||||||
console.log('//////////////////');
|
|
||||||
console.log('// ADDITIONAL //');
|
|
||||||
console.log('//////////////////');
|
|
||||||
console.log('');
|
|
||||||
for (count = 0; count < arcount; count += 1) {
|
|
||||||
console.log('');
|
|
||||||
console.log('Additional', count + 1, 'of', arcount + ' (byte index: 0x' + q.total.toString(16) + ' ' + q.total + ')');
|
|
||||||
unpackResourceRecord(dv, q, ab);
|
|
||||||
console.log('');
|
|
||||||
}
|
|
||||||
|
|
||||||
console.log('');
|
|
||||||
console.log('total bytes', dv.byteLength);
|
|
||||||
console.log('total bytes read', q.total);
|
|
||||||
console.log('');
|
|
||||||
|
|
||||||
}());
|
|
||||||
@ -1,46 +0,0 @@
|
|||||||
#!/usr/bin/env
|
|
||||||
(function () {
|
|
||||||
'use strict';
|
|
||||||
|
|
||||||
var cli = { port: 65153, address: null, udp6: false, bin: process.argv[2] };
|
|
||||||
var dgram = require('dgram');
|
|
||||||
var server = dgram.createSocket({
|
|
||||||
type: cli.udp6 ? 'udp6' : 'udp4'
|
|
||||||
, reuseAddr: true
|
|
||||||
});
|
|
||||||
var handlers = {};
|
|
||||||
var bin = require('fs').readFileSync(cli.bin, null);
|
|
||||||
|
|
||||||
handlers.onMessage = function (nb, rinfo) {
|
|
||||||
console.log('[DEBUG] got a message');
|
|
||||||
|
|
||||||
// replace the id to match
|
|
||||||
bin[0] = nb[0];
|
|
||||||
bin[1] = nb[1];
|
|
||||||
server.send(bin, rinfo.port, rinfo.address, function () {
|
|
||||||
console.log('[DEBUG] sent response');
|
|
||||||
});
|
|
||||||
};
|
|
||||||
|
|
||||||
handlers.onListening = function () {
|
|
||||||
/*jshint validthis:true*/
|
|
||||||
var server = this;
|
|
||||||
|
|
||||||
if (cli.mdns || '224.0.0.251' === cli.nameserver) {
|
|
||||||
server.setBroadcast(true);
|
|
||||||
server.addMembership(cli.nameserver);
|
|
||||||
}
|
|
||||||
|
|
||||||
console.log('');
|
|
||||||
console.log('Bound and Listening:');
|
|
||||||
console.log(server.address().address + '#' + server.address().port + ' (' + server.type + ')');
|
|
||||||
};
|
|
||||||
|
|
||||||
server.bind({
|
|
||||||
port: cli.port
|
|
||||||
, address: cli.address
|
|
||||||
});
|
|
||||||
server.on('listening', handlers.onListening);
|
|
||||||
server.on('message', handlers.onMessage);
|
|
||||||
|
|
||||||
}());
|
|
||||||
@ -9,27 +9,20 @@ var path = require('path');
|
|||||||
var filename = process.argv[2];
|
var filename = process.argv[2];
|
||||||
var outname = process.argv[3];
|
var outname = process.argv[3];
|
||||||
if (!filename) {
|
if (!filename) {
|
||||||
console.error(
|
console.error("Usage: node bin/dns-pack.js <path/to/sample.json> <path/to/output.bin>");
|
||||||
'Usage: node bin/dns-pack.js <path/to/sample.json> <path/to/output.bin>'
|
console.error("Example: node bin/dns-pack.js ./samples/services-0.mdns.json ./services-0.mdns.bin");
|
||||||
);
|
|
||||||
console.error(
|
|
||||||
'Example: node bin/dns-pack.js ./samples/services-0.mdns.json ./services-0.mdns.bin'
|
|
||||||
);
|
|
||||||
process.exit(1);
|
process.exit(1);
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
if (!outname) {
|
if (!outname) {
|
||||||
console.warn('');
|
console.warn('');
|
||||||
console.warn(
|
console.warn(
|
||||||
"Usage: node bin/dns-pack.js '" +
|
"Usage: node bin/dns-pack.js '" + filename + "' './" + path.basename(filename).replace(path.extname(filename), '') + ".bin'"
|
||||||
filename +
|
|
||||||
"' './" +
|
|
||||||
path.basename(filename).replace(path.extname(filename), '') +
|
|
||||||
".bin'"
|
|
||||||
);
|
);
|
||||||
console.warn('');
|
console.warn('');
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
var PromiseA = require('bluebird');
|
var PromiseA = require('bluebird');
|
||||||
var fs = PromiseA.promisifyAll(require('fs'));
|
var fs = PromiseA.promisifyAll(require('fs'));
|
||||||
var dnsjs = require('../').DNSPacket;
|
var dnsjs = require('../').DNSPacket;
|
||||||
@ -40,6 +33,7 @@ fs.readFileAsync(filename, null).then(function(nb) {
|
|||||||
//
|
//
|
||||||
//console.log(require('native-dns-packet').parse(nb));
|
//console.log(require('native-dns-packet').parse(nb));
|
||||||
|
|
||||||
|
|
||||||
//
|
//
|
||||||
// other reference impl
|
// other reference impl
|
||||||
//
|
//
|
||||||
@ -55,7 +49,7 @@ fs.readFileAsync(filename, null).then(function(nb) {
|
|||||||
//console.log(JSON.stringify(packet, null, 2));
|
//console.log(JSON.stringify(packet, null, 2));
|
||||||
|
|
||||||
//TODO hexdump packet
|
//TODO hexdump packet
|
||||||
var hexdump = require('@root/hexdump');
|
var hexdump = require('hexdump.js').hexdump;
|
||||||
var str = hexdump(packet);
|
var str = hexdump(packet);
|
||||||
|
|
||||||
console.log(str);
|
console.log(str);
|
||||||
|
|||||||
@ -10,17 +10,11 @@ var filename = process.argv[2];
|
|||||||
var outname = process.argv[3];
|
var outname = process.argv[3];
|
||||||
|
|
||||||
if (!filename || /(-h)|(--help)/.test(process.argv.join(' '))) {
|
if (!filename || /(-h)|(--help)/.test(process.argv.join(' '))) {
|
||||||
console.error('');
|
console.error("");
|
||||||
console.error(
|
console.error("Accepts a DNS packet (binary or json), converts it, and then converts it back to verify the function of the parser and packer");
|
||||||
'Accepts a DNS packet (binary or json), converts it, and then converts it back to verify the function of the parser and packer'
|
console.error("");
|
||||||
);
|
console.error("Usage: node bin/dns-test.js <path/to/sample.json|.bin> <path/to/sample.bin|.json>");
|
||||||
console.error('');
|
console.error("Example: node bin/dns-test.js ./samples/services-0.mdns.json ./samples/services-0.mdns.bin");
|
||||||
console.error(
|
|
||||||
'Usage: node bin/dns-test.js <path/to/sample.json|.bin> <path/to/sample.bin|.json>'
|
|
||||||
);
|
|
||||||
console.error(
|
|
||||||
'Example: node bin/dns-test.js ./samples/services-0.mdns.json ./samples/services-0.mdns.bin'
|
|
||||||
);
|
|
||||||
process.exit(1);
|
process.exit(1);
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
@ -28,20 +22,15 @@ if (!filename || /(-h)|(--help)/.test(process.argv.join(' '))) {
|
|||||||
var PromiseA = require('bluebird');
|
var PromiseA = require('bluebird');
|
||||||
var fs = PromiseA.promisifyAll(require('fs'));
|
var fs = PromiseA.promisifyAll(require('fs'));
|
||||||
var dnsjs = require('../').DNSPacket;
|
var dnsjs = require('../').DNSPacket;
|
||||||
var extname = path
|
var extname = path.extname(filename).substr(1).toLowerCase();
|
||||||
.extname(filename)
|
|
||||||
.substr(1)
|
|
||||||
.toLowerCase();
|
|
||||||
|
|
||||||
if ('json' !== extname && 'bin' !== extname) {
|
if ('json' !== extname && 'bin' !== extname) {
|
||||||
console.error(
|
console.error("The file extension must end in .json or .bin (raw DNS packet)");
|
||||||
'The file extension must end in .json or .bin (raw DNS packet)'
|
|
||||||
);
|
|
||||||
process.exit(3);
|
process.exit(3);
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
|
|
||||||
var hexdump = require('@root/hexdump');
|
var hexdump = require('hexdump.js').hexdump;
|
||||||
|
|
||||||
function testJsonAsync(nb) {
|
function testJsonAsync(nb) {
|
||||||
var packet = dnsjs.write(JSON.parse(nb.toString('ascii')));
|
var packet = dnsjs.write(JSON.parse(nb.toString('ascii')));
|
||||||
@ -54,18 +43,12 @@ function testJsonAsync(nb) {
|
|||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
|
|
||||||
console.info('[OK] JSON -> binary -> JSON');
|
console.info("[OK] JSON -> binary -> JSON");
|
||||||
|
|
||||||
if (!outname) {
|
if (!outname) {
|
||||||
console.warn('');
|
console.warn('');
|
||||||
console.warn(
|
console.warn(
|
||||||
"Usage: node bin/dns-test.js '" +
|
"Usage: node bin/dns-test.js '" + filename + "' './" + path.basename(filename).replace(path.extname(filename), '.bin') + "'"
|
||||||
filename +
|
|
||||||
"' './" +
|
|
||||||
path
|
|
||||||
.basename(filename)
|
|
||||||
.replace(path.extname(filename), '.bin') +
|
|
||||||
"'"
|
|
||||||
);
|
);
|
||||||
console.warn('');
|
console.warn('');
|
||||||
return;
|
return;
|
||||||
@ -96,13 +79,11 @@ function testBinAsync(nb) {
|
|||||||
// EXPLANATION:
|
// EXPLANATION:
|
||||||
// The strategy used for compression pointers has not yet been proven
|
// The strategy used for compression pointers has not yet been proven
|
||||||
// as deterministic... and we don't implement them anyway, so this may not be the same
|
// as deterministic... and we don't implement them anyway, so this may not be the same
|
||||||
json = JSON.parse(
|
json = JSON.parse(JSON.stringify(json)
|
||||||
JSON.stringify(json)
|
|
||||||
.replace(/,"labels":.*?\]/, '')
|
.replace(/,"labels":.*?\]/, '')
|
||||||
.replace(/,"cpcount":\d+/, '')
|
.replace(/,"cpcount":\d+/, '')
|
||||||
);
|
);
|
||||||
json2 = JSON.parse(
|
json2 = JSON.parse(JSON.stringify(json2)
|
||||||
JSON.stringify(json2)
|
|
||||||
.replace(/,"labels":.*?\]/, '')
|
.replace(/,"labels":.*?\]/, '')
|
||||||
.replace(/,"cpcount":\d+/, '')
|
.replace(/,"cpcount":\d+/, '')
|
||||||
);
|
);
|
||||||
@ -121,21 +102,13 @@ function testBinAsync(nb) {
|
|||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
|
|
||||||
console.info('[OK] binary -> JSON -> binary -> JSON');
|
console.info("[OK] binary -> JSON -> binary -> JSON");
|
||||||
console.warn(
|
console.warn("(compression pointer support needs to be improved in order to support direct bin -> JSON -> bin testing)");
|
||||||
'(compression pointer support needs to be improved in order to support direct bin -> JSON -> bin testing)'
|
|
||||||
);
|
|
||||||
|
|
||||||
if (!outname) {
|
if (!outname) {
|
||||||
console.warn('');
|
console.warn('');
|
||||||
console.warn(
|
console.warn(
|
||||||
"Usage: node bin/dns-test.js '" +
|
"Usage: node bin/dns-test.js '" + filename + "' './" + path.basename(filename).replace(path.extname(filename), '.json') + "'"
|
||||||
filename +
|
|
||||||
"' './" +
|
|
||||||
path
|
|
||||||
.basename(filename)
|
|
||||||
.replace(path.extname(filename), '.json') +
|
|
||||||
"'"
|
|
||||||
);
|
);
|
||||||
console.warn('');
|
console.warn('');
|
||||||
return;
|
return;
|
||||||
|
|||||||
@ -1,13 +0,0 @@
|
|||||||
(function (exports) {
|
|
||||||
'use strict';
|
|
||||||
|
|
||||||
var opcodes = exports.DNS_OPCODES = {
|
|
||||||
QUERY: 0x00 // 0
|
|
||||||
};
|
|
||||||
|
|
||||||
// and in reverse
|
|
||||||
Object.keys(opcodes).forEach(function (key) {
|
|
||||||
opcodes[opcodes[key]] = key;
|
|
||||||
});
|
|
||||||
|
|
||||||
}('undefined' !== typeof window ? window : exports));
|
|
||||||
@ -29,7 +29,7 @@ var dnspack = exports.DNS_PACKER = {
|
|||||||
dv.setUint16(10, (packet.additional||[]).length + (packet.payload ? 1 : 0), false);
|
dv.setUint16(10, (packet.additional||[]).length + (packet.payload ? 1 : 0), false);
|
||||||
|
|
||||||
function lint(r) {
|
function lint(r) {
|
||||||
if (!r.name && 'string' !== typeof r.name) {
|
if (!r.name) {
|
||||||
throw new Error("missing name");
|
throw new Error("missing name");
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -70,8 +70,7 @@ var dnspack = exports.DNS_PACKER = {
|
|||||||
labelsMap[total] = { total: total, name: sequence };
|
labelsMap[total] = { total: total, name: sequence };
|
||||||
labelsMap[sequence] = labelsMap[total];
|
labelsMap[sequence] = labelsMap[total];
|
||||||
}
|
}
|
||||||
// allow 0-length string for TLD root NS queries
|
sequence.split('.').forEach(function (label) {
|
||||||
(sequence && sequence.split('.') || []).forEach(function (label) {
|
|
||||||
dv.setUint8(total, label.length, false);
|
dv.setUint8(total, label.length, false);
|
||||||
total += 1;
|
total += 1;
|
||||||
|
|
||||||
|
|||||||
@ -1,15 +0,0 @@
|
|||||||
(function (exports) {
|
|
||||||
'use strict';
|
|
||||||
|
|
||||||
var rcodes = exports.DNS_RCODES = {
|
|
||||||
SUCCESS: 0x00 // 0
|
|
||||||
, NXDOMAIN: 0x03 // 3
|
|
||||||
, REFUSED: 0x05 // 5
|
|
||||||
};
|
|
||||||
|
|
||||||
// and in reverse
|
|
||||||
Object.keys(rcodes).forEach(function (key) {
|
|
||||||
rcodes[rcodes[key]] = key;
|
|
||||||
});
|
|
||||||
|
|
||||||
}('undefined' !== typeof window ? window : exports));
|
|
||||||
@ -49,8 +49,8 @@ var types = exports.DNS_TYPES = {
|
|||||||
};
|
};
|
||||||
|
|
||||||
// and in reverse
|
// and in reverse
|
||||||
Object.keys(types).forEach(function (key) {
|
for (var key in types) {
|
||||||
types[types[key]] = key;
|
types[types[key]] = key;
|
||||||
});
|
}
|
||||||
|
|
||||||
}('undefined' !== typeof window ? window : exports));
|
}('undefined' !== typeof window ? window : exports));
|
||||||
|
|||||||
@ -9,7 +9,7 @@
|
|||||||
//
|
//
|
||||||
// NOTE:
|
// NOTE:
|
||||||
// "NAME"s are terminated with 0x00
|
// "NAME"s are terminated with 0x00
|
||||||
// "RDATA" is terminated by its length, but its labels may null-terminated
|
// "RDATA" is terminated by its length
|
||||||
exports.DNS_UNPACK_LABELS = function (ui8, ptr, q) {
|
exports.DNS_UNPACK_LABELS = function (ui8, ptr, q) {
|
||||||
if (q.cpcount > 25) {
|
if (q.cpcount > 25) {
|
||||||
throw new Error("compression pointer loop detected (over 25 pointers seems like a loop)");
|
throw new Error("compression pointer loop detected (over 25 pointers seems like a loop)");
|
||||||
@ -26,34 +26,19 @@ exports.DNS_UNPACK_LABELS = function (ui8, ptr, q) {
|
|||||||
len = ui8[total];
|
len = ui8[total];
|
||||||
if (len === undefined){
|
if (len === undefined){
|
||||||
// RDATA is terminated by undefined, not len === 0
|
// RDATA is terminated by undefined, not len === 0
|
||||||
q.trunc = true;
|
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
|
|
||||||
// Handle message compression pointers. See 4.1.4 of RFC1035 for details.
|
// Handle message compression pointers. See 4.1.4 of RFC1035 for details.
|
||||||
// 0xc0 // 192 // parseInt('11000000', 2).toString(16)
|
|
||||||
if (len >= 0xc0) {
|
if (len >= 0xc0) {
|
||||||
// Only the two highest bits are used to signify the pointer.
|
|
||||||
// The remaining bits may be used to specify the address of the pointer
|
|
||||||
// (it would seem that only 1 extra bit is actually used since the message size is 512 bytes)
|
|
||||||
var cpptr = ((ui8[total] & 0x3f) << 8) | ui8[total + 1];
|
var cpptr = ((ui8[total] & 0x3f) << 8) | ui8[total + 1];
|
||||||
if (cpptr >= total) {
|
|
||||||
throw new Error(
|
|
||||||
"Compression pointer at"
|
|
||||||
+ " 0x" + total.toString() + " (" + total + ")"
|
|
||||||
+ " points forward to"
|
|
||||||
+ " 0x" + cpptr.toString(16) + " (" + cpptr + ")"
|
|
||||||
);
|
|
||||||
}
|
|
||||||
|
|
||||||
// We're not coming back, so if this is the first time we're following one of
|
// We're not coming back, so if this is the first time we're following one of
|
||||||
// these pointers we up the byteLength to mark the pointer as part of the label
|
// these pointers we up the byteLength to mark the pointer as part of the label
|
||||||
if (!q.cpcount) {
|
if (!q.cpcount) {
|
||||||
q.byteLength += 2; // cp and len
|
q.byteLength += 2; // cp and len
|
||||||
//q.cps = [];
|
|
||||||
}
|
}
|
||||||
q.cpcount += 1;
|
q.cpcount += 1;
|
||||||
//q.cps.push(cpptr);
|
|
||||||
|
|
||||||
// recursion
|
// recursion
|
||||||
return exports.DNS_UNPACK_LABELS(ui8, cpptr, q);
|
return exports.DNS_UNPACK_LABELS(ui8, cpptr, q);
|
||||||
|
|||||||
@ -1,27 +0,0 @@
|
|||||||
'use strict';
|
|
||||||
|
|
||||||
var DNSPacket = require('../').DNSPacket;
|
|
||||||
var rnd = Math.floor(Math.random() * 65536);
|
|
||||||
|
|
||||||
var query = {
|
|
||||||
header: {
|
|
||||||
id: rnd,
|
|
||||||
qr: 0,
|
|
||||||
opcode: 0,
|
|
||||||
aa: 0,
|
|
||||||
rd: 1,
|
|
||||||
ra: 0,
|
|
||||||
rcode: 0
|
|
||||||
},
|
|
||||||
question: [
|
|
||||||
{
|
|
||||||
name: 'google.com',
|
|
||||||
typeName: 'A',
|
|
||||||
className: 'IN'
|
|
||||||
}
|
|
||||||
]
|
|
||||||
};
|
|
||||||
|
|
||||||
var buffer = DNSPacket.pack(query);
|
|
||||||
|
|
||||||
console.info(Buffer.from(buffer));
|
|
||||||
13
package-lock.json
generated
13
package-lock.json
generated
@ -1,13 +0,0 @@
|
|||||||
{
|
|
||||||
"name": "dns-suite",
|
|
||||||
"version": "1.2.13",
|
|
||||||
"lockfileVersion": 1,
|
|
||||||
"requires": true,
|
|
||||||
"dependencies": {
|
|
||||||
"@root/hexdump": {
|
|
||||||
"version": "1.1.1",
|
|
||||||
"resolved": "https://registry.npmjs.org/@root/hexdump/-/hexdump-1.1.1.tgz",
|
|
||||||
"integrity": "sha512-AmrmLOutlzctR599ittO06lINOco1TIqb0c1wu83fP2Eoi5iSvx7kVWC4mDufze8rxPewC+aQOx4e6Pw7izV4A=="
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
13
package.json
13
package.json
@ -1,9 +1,8 @@
|
|||||||
{
|
{
|
||||||
"name": "dns-suite",
|
"name": "dns-suite",
|
||||||
"version": "1.2.13",
|
"version": "1.2.2",
|
||||||
"description": "DNS implemented in Vanilla JS for Node.js and Browsers",
|
"description": "testing dns",
|
||||||
"main": "dns.js",
|
"main": "dns.js",
|
||||||
"homepage": "https://git.coolaj86.com/coolaj86/dns-suite.js",
|
|
||||||
"bin": {
|
"bin": {
|
||||||
"dns-pack.js": "bin/dns-pack.js",
|
"dns-pack.js": "bin/dns-pack.js",
|
||||||
"dns-parse.js": "bin/dns-parse.js",
|
"dns-parse.js": "bin/dns-parse.js",
|
||||||
@ -15,11 +14,11 @@
|
|||||||
},
|
},
|
||||||
"repository": {
|
"repository": {
|
||||||
"type": "git",
|
"type": "git",
|
||||||
"url": "https://git.coolaj86.com:coolaj86/dns-suite.js.git"
|
"url": "git@git.daplie.com:Daplie/dns-suite.git"
|
||||||
},
|
},
|
||||||
"author": "",
|
"author": "",
|
||||||
"license": "MPL-2.0",
|
"license": "(MIT or Apache2)",
|
||||||
"dependencies": {
|
"developmentDependencies": {
|
||||||
"@root/hexdump": "^1.1.1"
|
"bluebird": "^3.5.0"
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|||||||
@ -1,69 +0,0 @@
|
|||||||
(function (exports) {
|
|
||||||
'use strict';
|
|
||||||
|
|
||||||
// RFC 6844
|
|
||||||
// Explanation: https://tools.ietf.org/html/rfc6844#section-3
|
|
||||||
// Binary Format: https://tools.ietf.org/html/rfc6844#section-5
|
|
||||||
// Real-world Usage: https://support.dnsimple.com/articles/caa-record/
|
|
||||||
|
|
||||||
// A Certification Authority Authorization (CAA) record is used to specify which
|
|
||||||
// certificate authorities (CAs) are allowed to issue certificates for a domain.
|
|
||||||
|
|
||||||
// Value Meaning/Use
|
|
||||||
//
|
|
||||||
// Flag An unsigned integer between 0-255.
|
|
||||||
// It is currently used to represent the critical flag, that has a
|
|
||||||
// specific meaning per RFC 6844
|
|
||||||
// Tag An ASCII string that represents the identifier of the property
|
|
||||||
// represented by the record.
|
|
||||||
// Value The value associated with the tag.
|
|
||||||
|
|
||||||
// The RFC currently defines 3 available tags:
|
|
||||||
//
|
|
||||||
// - issue: explicity authorizes a single certificate authority to issue a
|
|
||||||
// certificate (any type) for the hostname.
|
|
||||||
// - issuewild: explicity authorizes a single certificate authority to issue a
|
|
||||||
// wildcard certificate (and only wildcard) for the hostname.
|
|
||||||
// - iodef: specifies an URL to which a certificate authority may report
|
|
||||||
// policy violations.
|
|
||||||
|
|
||||||
exports.DNS_PACKER_TYPE_CAA = function (ab, dv, total, record) {
|
|
||||||
if ('number' !== typeof record.flag || isNaN(record.flag) || record.flag < 0 || record.flag > 255) {
|
|
||||||
console.log(record);
|
|
||||||
throw new Error("bad CAA flag:", record.flag);
|
|
||||||
}
|
|
||||||
if ('string' !== typeof record.tag || !record.tag || record.tag.length > 255) {
|
|
||||||
throw new Error("bad CAA tag:", record.tag);
|
|
||||||
}
|
|
||||||
if ('string' !== typeof record.value || !record.value) {
|
|
||||||
throw new Error("bad CAA value:", record.value);
|
|
||||||
}
|
|
||||||
|
|
||||||
// RDLEN = flag (1 byte) + taglen (1 byte) + tagstr (taglen bytes) + valuestr (valuelen bytes)
|
|
||||||
dv.setUint16(total, 1 + 1 + record.tag.length + record.value.length, false);
|
|
||||||
total += 2;
|
|
||||||
|
|
||||||
// FLAG
|
|
||||||
dv.setUint8(total, record.flag, false);
|
|
||||||
total += 1;
|
|
||||||
|
|
||||||
// TAG LENGTH
|
|
||||||
dv.setUint8(total, record.tag.length, false);
|
|
||||||
total += 1;
|
|
||||||
|
|
||||||
// TAG
|
|
||||||
record.tag.split('').forEach(function (ch) {
|
|
||||||
dv.setUint8(total, ch.charCodeAt(0), false);
|
|
||||||
total += 1;
|
|
||||||
});
|
|
||||||
|
|
||||||
// VALUE
|
|
||||||
record.value.split('').forEach(function (ch) {
|
|
||||||
dv.setUint8(total, ch.charCodeAt(0), false);
|
|
||||||
total += 1;
|
|
||||||
});
|
|
||||||
|
|
||||||
return total;
|
|
||||||
};
|
|
||||||
|
|
||||||
}('undefined' !== typeof window ? window : exports));
|
|
||||||
@ -25,11 +25,9 @@ exports.DNS_PACKER_TYPE_CNAME = function (ab, dv, total, record) {
|
|||||||
total += 1;
|
total += 1;
|
||||||
});
|
});
|
||||||
});
|
});
|
||||||
dv.setUint8(total, 0x00, false);
|
|
||||||
total += 1;
|
|
||||||
|
|
||||||
// RDLENGTH
|
// RDLENGTH
|
||||||
dv.setUint16(rdLenIndex, record.data.length + 2, false);
|
dv.setUint16(rdLenIndex, record.data.length + 1, false);
|
||||||
|
|
||||||
return total;
|
return total;
|
||||||
};
|
};
|
||||||
|
|||||||
@ -31,9 +31,6 @@ exports.DNS_PACKER_TYPE_MX = function (ab, dv, total, record) {
|
|||||||
total += 1;
|
total += 1;
|
||||||
});
|
});
|
||||||
});
|
});
|
||||||
dv.setUint8(total, 0x00, false);
|
|
||||||
total += 1;
|
|
||||||
mxLen += 1;
|
|
||||||
|
|
||||||
// RDLENGTH
|
// RDLENGTH
|
||||||
dv.setUint16(rdLenIndex, mxLen, false);
|
dv.setUint16(rdLenIndex, mxLen, false);
|
||||||
|
|||||||
@ -1,8 +1,7 @@
|
|||||||
// NOTE: this should be EXACTLY the same as PTR
|
|
||||||
|
|
||||||
(function (exports) {
|
(function (exports) {
|
||||||
'use strict';
|
'use strict';
|
||||||
|
|
||||||
|
|
||||||
// NS name for the supplied domain. May be label, pointer or any combination
|
// NS name for the supplied domain. May be label, pointer or any combination
|
||||||
|
|
||||||
exports.DNS_PACKER_TYPE_NS = function (ab, dv, total, record) {
|
exports.DNS_PACKER_TYPE_NS = function (ab, dv, total, record) {
|
||||||
@ -10,14 +9,15 @@ exports.DNS_PACKER_TYPE_NS = function (ab, dv, total, record) {
|
|||||||
throw new Error("no data on NS record");
|
throw new Error("no data on NS record");
|
||||||
}
|
}
|
||||||
|
|
||||||
// RDLENGTH
|
|
||||||
// leading len and length of string and trailing null (all dots become lengths)
|
var nsLen = 0;
|
||||||
dv.setUint16(total, record.data.length + 2, false);
|
var rdLenIndex = total;
|
||||||
total +=2;
|
total +=2;
|
||||||
|
|
||||||
// RDATA
|
// RDATA
|
||||||
// a sequence of labels
|
// a sequence of labels
|
||||||
record.data.split('.').forEach(function(label) {
|
record.data.split('.').forEach(function(label) {
|
||||||
|
nsLen += 1 + label.length;
|
||||||
|
|
||||||
dv.setUint8(total, label.length, false);
|
dv.setUint8(total, label.length, false);
|
||||||
total += 1;
|
total += 1;
|
||||||
@ -27,8 +27,10 @@ exports.DNS_PACKER_TYPE_NS = function (ab, dv, total, record) {
|
|||||||
total += 1;
|
total += 1;
|
||||||
});
|
});
|
||||||
});
|
});
|
||||||
dv.setUint8(total, 0x00, false);
|
|
||||||
total += 1;
|
// RDLENGTH
|
||||||
|
dv.setUint16(rdLenIndex, record.data.length + 1, false);
|
||||||
|
|
||||||
|
|
||||||
return total;
|
return total;
|
||||||
};
|
};
|
||||||
|
|||||||
@ -1,5 +1,3 @@
|
|||||||
// NOTE: this should be EXACTLY the same as NS
|
|
||||||
|
|
||||||
(function (exports) {
|
(function (exports) {
|
||||||
'use strict';
|
'use strict';
|
||||||
|
|
||||||
@ -11,14 +9,15 @@ exports.DNS_PACKER_TYPE_PTR = function (ab, dv, total, record) {
|
|||||||
throw new Error("no data for PTR record");
|
throw new Error("no data for PTR record");
|
||||||
}
|
}
|
||||||
|
|
||||||
// RDLENGTH
|
var ptrLen = 0;
|
||||||
// leading len and length of string and trailing null (all dots become lengths)
|
var rdLenIndex = total;
|
||||||
dv.setUint16(total, record.data.length + 2, false);
|
|
||||||
total += 2;
|
total += 2;
|
||||||
|
|
||||||
// RDATA
|
// RDATA
|
||||||
// a sequence of labels
|
// a sequence of labels
|
||||||
record.data.split('.').forEach(function (label){
|
record.data.split('.').forEach(function (label){
|
||||||
|
console.log("the labels are: " + label);
|
||||||
|
ptrLen += 1 + label.length;
|
||||||
|
|
||||||
dv.setUint8(total, label.length, false);
|
dv.setUint8(total, label.length, false);
|
||||||
total += 1;
|
total += 1;
|
||||||
@ -28,8 +27,9 @@ exports.DNS_PACKER_TYPE_PTR = function (ab, dv, total, record) {
|
|||||||
total += 1;
|
total += 1;
|
||||||
});
|
});
|
||||||
});
|
});
|
||||||
dv.setUint8(total, 0x00, false);
|
|
||||||
total += 1;
|
// RDLENGTH
|
||||||
|
dv.setUint16(rdLenIndex, record.data.length + 1, false);
|
||||||
|
|
||||||
return total;
|
return total;
|
||||||
};
|
};
|
||||||
|
|||||||
@ -2,7 +2,6 @@
|
|||||||
'use strict';
|
'use strict';
|
||||||
|
|
||||||
// http://www.zytrax.com/books/dns/ch8/soa.html
|
// http://www.zytrax.com/books/dns/ch8/soa.html
|
||||||
// https://github.com/tjfontaine/node-dns#resourcerecord
|
|
||||||
|
|
||||||
// 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
|
||||||
@ -14,29 +13,25 @@
|
|||||||
// Minimum TTL Unsigned 32-bit integer
|
// Minimum TTL Unsigned 32-bit integer
|
||||||
|
|
||||||
exports.DNS_PACKER_TYPE_SOA = function (ab, dv, total, record) {
|
exports.DNS_PACKER_TYPE_SOA = function (ab, dv, total, record) {
|
||||||
function notNumber(n) {
|
if(!record.name_server){
|
||||||
return 'number' !== typeof n || isNaN(n);
|
|
||||||
}
|
|
||||||
|
|
||||||
if (!record.primary && !record.name_server) {
|
|
||||||
throw new Error("no name server for SOA record");
|
throw new Error("no name server for SOA record");
|
||||||
}
|
}
|
||||||
if (!record.admin && !record.email_addr) {
|
if(!record.email_addr){
|
||||||
throw new Error("ne email address for SOA record");
|
throw new Error("ne email address for SOA record");
|
||||||
}
|
}
|
||||||
if (notNumber(record.serial) && notNumber(record.sn)) {
|
if(!record.sn){
|
||||||
throw new Error("no serial number for SOA record");
|
throw new Error("no serial number for SOA record");
|
||||||
}
|
}
|
||||||
if (notNumber(record.refresh) && notNumber(record.ref)) {
|
if(!record.ref){
|
||||||
throw new Error("no refresh for SOA record");
|
throw new Error("no refresh for SOA record");
|
||||||
}
|
}
|
||||||
if (notNumber(record.retry) && notNumber(record.ret)) {
|
if(!record.ret){
|
||||||
throw new Error("no update retry for SOA record");
|
throw new Error("no update retry for SOA record");
|
||||||
}
|
}
|
||||||
if (notNumber(record.expiration) && notNumber(record.ex)) {
|
if(!record.ex){
|
||||||
throw new Error("no expiry for SOA record");
|
throw new Error("no expiry for SOA record");
|
||||||
}
|
}
|
||||||
if (notNumber(record.minimum) && notNumber(record.nx)) {
|
if(!record.nx){
|
||||||
throw new Error("no nxdomain for SOA record");
|
throw new Error("no nxdomain for SOA record");
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -45,9 +40,9 @@ exports.DNS_PACKER_TYPE_SOA = function (ab, dv, total, record) {
|
|||||||
var rdLenIndex = total;
|
var rdLenIndex = total;
|
||||||
total += 2; // Save space for RDLENGTH
|
total += 2; // Save space for RDLENGTH
|
||||||
|
|
||||||
//console.log('record.name_server', 1 + record.name_server.length, record.name_server);
|
console.log('record.name_server', 1 + record.name_server.length, record.name_server);
|
||||||
// pack name_server which is a sequence of labels
|
// pack name_server which is a sequence of labels
|
||||||
(record.primary || record.name_server).split('.').forEach(function (label) {
|
record.name_server.split('.').forEach(function (label) {
|
||||||
soaLen += (1 + label.length);
|
soaLen += (1 + label.length);
|
||||||
|
|
||||||
dv.setUint8(total, label.length, false);
|
dv.setUint8(total, label.length, false);
|
||||||
@ -63,9 +58,9 @@ exports.DNS_PACKER_TYPE_SOA = function (ab, dv, total, record) {
|
|||||||
total += 1;
|
total += 1;
|
||||||
soaLen += 1;
|
soaLen += 1;
|
||||||
|
|
||||||
//console.log('record.email_addr', 1 + record.email_addr.length, record.email_addr);
|
console.log('record.email_addr', 1 + record.email_addr.length, record.email_addr);
|
||||||
// pack email address which is a sequence of labels
|
// pack email address which is a sequence of labels
|
||||||
(record.admin || record.email_addr).split('.').forEach(function (label) {
|
record.email_addr.split('.').forEach(function (label) {
|
||||||
soaLen += 1 + label.length;
|
soaLen += 1 + label.length;
|
||||||
|
|
||||||
dv.setUint8(total, label.length, false);
|
dv.setUint8(total, label.length, false);
|
||||||
@ -82,20 +77,20 @@ exports.DNS_PACKER_TYPE_SOA = function (ab, dv, total, record) {
|
|||||||
soaLen += 1;
|
soaLen += 1;
|
||||||
|
|
||||||
// pack all 32-bit values
|
// pack all 32-bit values
|
||||||
dv.setUint32(total, parseInt(record.serial || record.sn, 10), false);
|
dv.setUint32(total, parseInt(record.sn, 10), false);
|
||||||
total+=4;
|
total+=4;
|
||||||
dv.setUint32(total, parseInt(record.refresh || record.ref, 10), false);
|
dv.setUint32(total, parseInt(record.ref, 10), false);
|
||||||
total+=4;
|
total+=4;
|
||||||
dv.setUint32(total, parseInt(record.retry || record.ret, 10), false);
|
dv.setUint32(total, parseInt(record.ret, 10), false);
|
||||||
total+=4;
|
total+=4;
|
||||||
dv.setUint32(total, parseInt(record.expiration || record.ex, 10), false);
|
dv.setUint32(total, parseInt(record.ex, 10), false);
|
||||||
total+=4;
|
total+=4;
|
||||||
dv.setUint32(total, parseInt(record.minimum || record.nx, 10), false);
|
dv.setUint32(total, parseInt(record.nx, 10), false);
|
||||||
total+=4;
|
total+=4;
|
||||||
|
|
||||||
// RDLENGTH
|
// RDLENGTH
|
||||||
//console.log('rdAt', rdLenIndex);
|
console.log('rdAt', rdLenIndex);
|
||||||
//console.log('soaLen (lables + 2 + 20)', soaLen);
|
console.log('soaLen (lables + 2 + 20)', soaLen);
|
||||||
dv.setUint16(rdLenIndex, soaLen, false);
|
dv.setUint16(rdLenIndex, soaLen, false);
|
||||||
|
|
||||||
return total;
|
return total;
|
||||||
|
|||||||
@ -59,10 +59,6 @@ exports.DNS_PACKER_TYPE_SRV = function (ab, dv, total, record) {
|
|||||||
});
|
});
|
||||||
});
|
});
|
||||||
|
|
||||||
dv.setUint8(total, 0x00, false);
|
|
||||||
total += 1;
|
|
||||||
srvLen += 1;
|
|
||||||
|
|
||||||
// RDLENGTH
|
// RDLENGTH
|
||||||
|
|
||||||
dv.setUint16(rdLenIndex, srvLen, false);
|
dv.setUint16(rdLenIndex, srvLen, false);
|
||||||
|
|||||||
@ -2,44 +2,32 @@
|
|||||||
'use strict';
|
'use strict';
|
||||||
|
|
||||||
// Record type is just any text.
|
// Record type is just any text.
|
||||||
// RFC 1035 - 3.3. Standard RRs - <character-string>
|
|
||||||
// RFC 1035 - 3.3.14. TXT RDATA format
|
|
||||||
|
|
||||||
exports.DNS_PACKER_TYPE_TXT = function (ab, dv, total, record) {
|
exports.DNS_PACKER_TYPE_TXT = function (ab, dv, total, record) {
|
||||||
if ('string' === typeof record.data) {
|
if (!record.data){
|
||||||
console.warn("[WARN] 'data' should be an array of strings, not a single string");
|
throw new Error("no data for TXT record");
|
||||||
record.data = [ record.data ];
|
|
||||||
}
|
|
||||||
if (!Array.isArray(record.data) || !record.data.length){
|
|
||||||
throw new Error("bad data or no data for TXT record");
|
|
||||||
}
|
}
|
||||||
|
|
||||||
var txtLen = 0;
|
var txtLen = 0;
|
||||||
var rdLenIndex = total;
|
var rdLenIndex = total;
|
||||||
total += 2; // saving space for rdata length
|
total += 3;
|
||||||
|
|
||||||
// RDATA
|
// RDATA
|
||||||
record.data.forEach(function(str){
|
record.data.forEach(function(str){
|
||||||
|
|
||||||
if (str.length > 255) {
|
|
||||||
throw new Error("bad TXT string length " + str.length + " (max 255)");
|
|
||||||
}
|
|
||||||
|
|
||||||
// size of this string
|
|
||||||
dv.setUint8(total, str.length, false);
|
|
||||||
total += 1;
|
|
||||||
txtLen += 1;
|
|
||||||
|
|
||||||
str.split('').forEach(function(ch){
|
str.split('').forEach(function(ch){
|
||||||
|
|
||||||
|
txtLen += 1;
|
||||||
|
// console.log(chcim);
|
||||||
dv.setUint8(total, ch.charCodeAt(0), false);
|
dv.setUint8(total, ch.charCodeAt(0), false);
|
||||||
total += 1;
|
total += 1;
|
||||||
txtLen += 1;
|
|
||||||
|
|
||||||
});
|
});
|
||||||
});
|
});
|
||||||
|
|
||||||
dv.setUint16(rdLenIndex, txtLen, false);
|
dv.setUint16(rdLenIndex, txtLen+1, false);
|
||||||
|
dv.setUint8(rdLenIndex+2, txtLen, false);
|
||||||
|
// total +=1;
|
||||||
|
|
||||||
return total;
|
return total;
|
||||||
};
|
};
|
||||||
|
|||||||
@ -1,9 +1,6 @@
|
|||||||
(function (exports) {
|
(function (exports) {
|
||||||
'use strict';
|
'use strict';
|
||||||
|
|
||||||
// RFC 6844 https://tools.ietf.org/html/rfc6844#section-3
|
|
||||||
// https://support.dnsimple.com/articles/caa-record/
|
|
||||||
|
|
||||||
// A Certification Authority Authorization (CAA) record is used to specify which
|
// A Certification Authority Authorization (CAA) record is used to specify which
|
||||||
// certificate authorities (CAs) are allowed to issue certificates for a domain.
|
// certificate authorities (CAs) are allowed to issue certificates for a domain.
|
||||||
|
|
||||||
@ -29,23 +26,13 @@ exports.DNS_PARSER_TYPE_CAA = function (ab, packet, record) {
|
|||||||
|
|
||||||
var data = new Uint8Array(ab);
|
var data = new Uint8Array(ab);
|
||||||
var i = record.rdstart;
|
var i = record.rdstart;
|
||||||
var flag = data[i];
|
var flag = data[i++];
|
||||||
var mid = data[i + 1];
|
var mid = data[i++];
|
||||||
i += 2;
|
|
||||||
mid += i;
|
mid += i;
|
||||||
var end = record.rdstart + record.rdlength;
|
var end = record.rdstart + record.rdlength;
|
||||||
var tag = '';
|
var tag = '', value = '';
|
||||||
var value = '';
|
while (i < mid) { tag += String.fromCharCode(data[i++]); }
|
||||||
|
while (i < end) { value += String.fromCharCode(data[i++]); }
|
||||||
while (i < mid) {
|
|
||||||
tag += String.fromCharCode(data[i]);
|
|
||||||
i += 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
while (i < end) {
|
|
||||||
value += String.fromCharCode(data[i]);
|
|
||||||
i += 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
record.flag = flag;
|
record.flag = flag;
|
||||||
record.tag = tag;
|
record.tag = tag;
|
||||||
|
|||||||
@ -1,10 +1,6 @@
|
|||||||
(function (exports) {
|
(function (exports) {
|
||||||
'use strict';
|
'use strict';
|
||||||
|
|
||||||
// FORMAT:
|
|
||||||
// name ttl class rr name
|
|
||||||
// foo. 15 IN NS www.example.com.
|
|
||||||
|
|
||||||
// Comes in variable lengths. It is the name of the primary Master for the Domain.
|
// Comes in variable lengths. It is the name of the primary Master for the Domain.
|
||||||
// For example 'ns1.example.com'
|
// For example 'ns1.example.com'
|
||||||
// It may be a label, pointer or any combination
|
// It may be a label, pointer or any combination
|
||||||
@ -12,12 +8,11 @@ var unpackLabels = exports.DNS_UNPACK_LABELS || require('../dns.unpack-labels.js
|
|||||||
|
|
||||||
|
|
||||||
exports.DNS_PARSER_TYPE_NS = function (ab , packet, record) {
|
exports.DNS_PARSER_TYPE_NS = function (ab , packet, record) {
|
||||||
var labelInfo = unpackLabels(new Uint8Array(ab), record.rdstart, { byteLength: 0, cpcount: 0, labels: [], name: '' });
|
record.data = unpackLabels(new Uint8Array(ab), record.rdstart, { byteLength: 0, cpcount: 0, labels: [], name: '' }).name;
|
||||||
if (record.trunc) {
|
|
||||||
throw new Error("RDATA type NS must be `null`-terminated, not truncated by rdata length.");
|
|
||||||
}
|
|
||||||
record.data = labelInfo.name;
|
|
||||||
return record;
|
return record;
|
||||||
|
|
||||||
};
|
};
|
||||||
|
|
||||||
}('undefined' !== typeof window ? window : exports));
|
}('undefined' !== typeof window ? window : exports));
|
||||||
|
|
||||||
|
|
||||||
|
|||||||
@ -6,16 +6,12 @@
|
|||||||
// to a host name.
|
// to a host name.
|
||||||
|
|
||||||
// FORMAT:
|
// FORMAT:
|
||||||
// name ttl class rr name
|
// ame ttl class rr name
|
||||||
// foo. 15 IN PTR www.example.com.
|
// 15 IN PTR www.example.com.
|
||||||
|
|
||||||
var unpackLabels = exports.DNS_UNPACK_LABELS || require('../dns.unpack-labels.js').DNS_UNPACK_LABELS;
|
var unpackLabels = exports.DNS_UNPACK_LABELS || require('../dns.unpack-labels.js').DNS_UNPACK_LABELS;
|
||||||
exports.DNS_PARSER_TYPE_PTR = function (ab, pack, record) {
|
exports.DNS_PARSER_TYPE_PTR = function (ab, pack, record) {
|
||||||
var labelInfo = unpackLabels(new Uint8Array(ab), record.rdstart, { byteLength: 0, cpcount: 0, labels: [], name: '' });
|
record.data = unpackLabels(new Uint8Array(ab), record.rdstart, { byteLength: 0, cpcount: 0, labels: [], name: '' }).name;
|
||||||
if (record.trunc) {
|
return record;
|
||||||
throw new Error("RDATA type PTR must be `null`-terminated, not truncated by rdata length.");
|
|
||||||
}
|
|
||||||
record.data = labelInfo.name;
|
|
||||||
};
|
};
|
||||||
|
|
||||||
}('undefined' !== typeof window ? window : exports));
|
}('undefined' !== typeof window ? window : exports));
|
||||||
|
|||||||
@ -13,22 +13,18 @@
|
|||||||
var unpackLabels = exports.DNS_UNPACK_LABELS || require('../dns.unpack-labels.js').DNS_UNPACK_LABELS;
|
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) {
|
||||||
//
|
|
||||||
// Look!
|
|
||||||
// http://www.peerwisdom.org/2013/05/15/dns-understanding-the-soa-record/
|
|
||||||
|
|
||||||
var rdataAb = ab.slice(record.rdstart, record.rdstart + record.rdlength);
|
var rdataAb = ab.slice(record.rdstart, record.rdstart + record.rdlength);
|
||||||
var dv = new DataView(rdataAb);
|
var dv = new DataView(rdataAb);
|
||||||
|
|
||||||
// we need this information for this parser
|
// we need this information for this parser
|
||||||
var labelInfo = unpackLabels(new Uint8Array(ab), record.rdstart, { byteLength: 0, cpcount: 0, labels: [], name: '' });
|
var labelInfo = unpackLabels(new Uint8Array(ab), record.rdstart, { byteLength: 0, cpcount: 0, labels: [], name: '' });
|
||||||
//var cpcount = labelInfo.cpcount;
|
var cpcount = labelInfo.cpcount;
|
||||||
var offset = labelInfo.byteLength;
|
var offset = labelInfo.byteLength;
|
||||||
//var labels = labelInfo.labels;
|
var labels = labelInfo.labels;
|
||||||
|
|
||||||
// Primary NS
|
// Primary NS
|
||||||
record.primary = labelInfo.name;
|
record.name_server = labelInfo.name;
|
||||||
record.name_server = record.primary;
|
|
||||||
|
|
||||||
// TODO delete this commented out code after some testing
|
// TODO delete this commented out code after some testing
|
||||||
// (pretty sure it was unnecessary and it seemed to work on code with compression pointers just fine)
|
// (pretty sure it was unnecessary and it seemed to work on code with compression pointers just fine)
|
||||||
@ -56,19 +52,18 @@ exports.DNS_PARSER_TYPE_SOA = function (ab, packet, record) {
|
|||||||
record.email_addr = unpackLabels(new Uint8Array(ab), record.rdstart + offset, { byteLength: 0, cpcount: 0, labels: [], name: '' }).name;
|
record.email_addr = unpackLabels(new Uint8Array(ab), record.rdstart + offset, { byteLength: 0, cpcount: 0, labels: [], name: '' }).name;
|
||||||
}
|
}
|
||||||
*/
|
*/
|
||||||
record.admin = unpackLabels(new Uint8Array(ab), record.rdstart + offset, { byteLength: 0, cpcount: 0, labels: [], name: '' }).name;
|
record.email_addr = unpackLabels(new Uint8Array(ab), record.rdstart + offset, { byteLength: 0, cpcount: 0, labels: [], name: '' }).name;
|
||||||
record.email_addr = record.admin;
|
|
||||||
|
|
||||||
// Serial Number
|
// Serial Number
|
||||||
record.serial = record.sn = dv.getUint32(dv.byteLength - 20, false);
|
record.sn = dv.getUint32(dv.byteLength - 20, false);
|
||||||
// Refresh Interval
|
// Refresh Interval
|
||||||
record.refresh = record.ref = dv.getUint32(dv.byteLength - 16, false);
|
record.ref = dv.getUint32(dv.byteLength - 16, false);
|
||||||
// Retry Interval
|
// Retry Interval
|
||||||
record.retry = record.ret = dv.getUint32(dv.byteLength - 12, false);
|
record.ret = dv.getUint32(dv.byteLength - 12, false);
|
||||||
// Expiration Limit
|
// Expiration Limit
|
||||||
record.expiration = record.ex = dv.getUint32(dv.byteLength - 8, false);
|
record.ex = dv.getUint32(dv.byteLength - 8, false);
|
||||||
// Minimum TTL
|
// Minimum TTL
|
||||||
record.minimum = record.nx = dv.getUint32(dv.byteLength - 4, false);
|
record.nx = dv.getUint32(dv.byteLength - 4, false);
|
||||||
|
|
||||||
return record;
|
return record;
|
||||||
};
|
};
|
||||||
|
|||||||
33
test/fixtures/www.linode.com.a.js
vendored
Normal file
33
test/fixtures/www.linode.com.a.js
vendored
Normal file
@ -0,0 +1,33 @@
|
|||||||
|
{ header:
|
||||||
|
{ id: 46894,
|
||||||
|
qr: 1,
|
||||||
|
opcode: 0,
|
||||||
|
aa: 0,
|
||||||
|
tc: 0,
|
||||||
|
rd: 1,
|
||||||
|
ra: 1,
|
||||||
|
res1: 0,
|
||||||
|
res2: 0,
|
||||||
|
res3: 0,
|
||||||
|
rcode: 0 },
|
||||||
|
question: [ { name: 'www.linode.com', type: 1, class: 1 } ],
|
||||||
|
answer:
|
||||||
|
[ { name: 'www.linode.com',
|
||||||
|
type: 1,
|
||||||
|
class: 1,
|
||||||
|
ttl: 291,
|
||||||
|
address: '72.14.191.202' },
|
||||||
|
{ name: 'www.linode.com',
|
||||||
|
type: 1,
|
||||||
|
class: 1,
|
||||||
|
ttl: 291,
|
||||||
|
address: '69.164.200.202' },
|
||||||
|
{ name: 'www.linode.com',
|
||||||
|
type: 1,
|
||||||
|
class: 1,
|
||||||
|
ttl: 291,
|
||||||
|
address: '72.14.180.202' } ],
|
||||||
|
authority: [],
|
||||||
|
additional: [],
|
||||||
|
edns_options: [],
|
||||||
|
payload: undefined }
|
||||||
43
test/fixtures/www.linode.com.a.json
vendored
43
test/fixtures/www.linode.com.a.json
vendored
@ -1,43 +0,0 @@
|
|||||||
{
|
|
||||||
"header": {
|
|
||||||
"id": 46894,
|
|
||||||
"qr": 1,
|
|
||||||
"opcode": 0,
|
|
||||||
"aa": 0,
|
|
||||||
"tc": 0,
|
|
||||||
"rd": 1,
|
|
||||||
"ra": 1,
|
|
||||||
"res1": 0,
|
|
||||||
"res2": 0,
|
|
||||||
"res3": 0,
|
|
||||||
"rcode": 0
|
|
||||||
},
|
|
||||||
"question": [{ "name": "www.linode.com", "type": 1, "class": 1 }],
|
|
||||||
"answer": [
|
|
||||||
{
|
|
||||||
"name": "www.linode.com",
|
|
||||||
"type": 1,
|
|
||||||
"class": 1,
|
|
||||||
"ttl": 291,
|
|
||||||
"address": "72.14.191.202"
|
|
||||||
},
|
|
||||||
{
|
|
||||||
"name": "www.linode.com",
|
|
||||||
"type": 1,
|
|
||||||
"class": 1,
|
|
||||||
"ttl": 291,
|
|
||||||
"address": "69.164.200.202"
|
|
||||||
},
|
|
||||||
{
|
|
||||||
"name": "www.linode.com",
|
|
||||||
"type": 1,
|
|
||||||
"class": 1,
|
|
||||||
"ttl": 291,
|
|
||||||
"address": "72.14.180.202"
|
|
||||||
}
|
|
||||||
],
|
|
||||||
"authority": [],
|
|
||||||
"additional": [],
|
|
||||||
"edns_options": [],
|
|
||||||
"payload": undefined
|
|
||||||
}
|
|
||||||
Loading…
x
Reference in New Issue
Block a user