thekuwayama/svcb_rr_patch

# svcb_rr_patch

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`svcb_rr_patch` is the patch that adds SVCB Resource Record and HTTPS Resource Record.

- https://www.rfc-editor.org/rfc/rfc9460.html

`svcb_rr_patch` supports "ech" SvcParamKey that ECHConfig.version is `0xfe0b` ~ `0xfe0d`

- https://author-tools.ietf.org/iddiff?url2=draft-ietf-tls-esni-13.txt#context-3


## Installation

The gem is available at [rubygems.org](https://rubygems.org/gems/svcb_rr_patch). You can install it the following.

```sh-session
$ gem install svcb_rr_patch
```


## Usage

You can resolve HTTPS resources.

```ruby
$ irb
irb(main):001:0> require 'svcb_rr_patch'
=> true
irb(main):002:1* rr = Resolv::DNS.new.getresources(
irb(main):003:1*   "crypto.cloudflare.com",
irb(main):004:1*   Resolv::DNS::Resource::IN::HTTPS
irb(main):005:0> )
=>
[#<Resolv::DNS::Resource::IN::HTTPS:0x0000000000000000
...
irb(main):006:0> rr.first.svc_params.to_s
=> "alpn=http/1.1,h2 ipv4hint=162.159.137.85,162.159.138.85 ech=AEb+DQBC4wAgACCaqAJAAhqN4e1k2RSa+rFgJCpJNOapZy5FdQZUN5ITXAAEAAEAAQATY2xvdWRmbGFyZS1lc25pLmNvbQAA ipv6hint=2606:4700:7::a29f:8955,2606:4700:7::a29f:8a55"
```


## License

The gem is available as open source under the terms of the [MIT License](http://opensource.org/licenses/MIT).