implement SVCB and HTTPS RRs #83
Conversation
sometimes rustc warns but if you go back to implicit, then it errors out. make up your mind, rustc
cargo run -q -p dog -- HTTPS crypto.cloudflare.com --json \
| jq '.responses[] .answers[].data.params.ech' -r \
| cargo run -q -p ech-config \
| jq
|
Some notes:
|
| // let contains_spaces = true; | ||
| if contains_spaces { | ||
| write!(f, "\"")?; | ||
| } | ||
|
|
||
| for byte in self.0.iter().copied() { | ||
| if byte < 32 || byte >= 128 { |
There was a problem hiding this comment.
This reminds me, I think dog's existing ascii escaping here is not quite correct, it's meant to be three digits unconditionally so fails for the byte < 32 case. If you slap this output in a zone file it may not parse. (Scroll down in the actual file)
| "mandatory": mandatory.iter().map(|x| x.to_string()).collect::<Vec<String>>(), | ||
| "alpn": alpn.as_ref().map(|x| x.ids.iter().map(|id| id.to_string()).collect::<Vec<String>>()), | ||
| "port": *port, | ||
| "no-default-alpn": alpn.as_ref().map(|x| x.no_default_alpn).unwrap_or(false), |
There was a problem hiding this comment.
Do we prefer some kind of underscores convention or matching the presentation format in the RFC (hyphens as shown here)?
| @@ -65,6 +66,7 @@ impl Colours { | |||
| sshfp: Cyan.normal(), | |||
| soa: Purple.normal(), | |||
| srv: Cyan.normal(), | |||
| svcb: Cyan.normal(), | |||
There was a problem hiding this comment.
Picked to match SRV records which these new ones are somewhat similar to.
| #[serde(untagged)] | ||
| pub enum ECHConfigContents { | ||
| // if version == 0xfe0d | ||
| Version0xfe0d { |
There was a problem hiding this comment.
Call this Draft13 because that's what 0xfe0d means
| let inner = self.get_ref(); | ||
| let len = inner.len() as u64; | ||
| let start = self.position().min(len); | ||
| let end = (start + to_length).min(len); |
There was a problem hiding this comment.
Oh. This should obviously just error if the remaining slice is not big enough to hold the requested length. And return a wire error
Fixes #76
And piping the
--jsonoutput through my other little tool to decode the ECH configuration:cargo run -q -p dog -- HTTPS crypto.cloudflare.com --json \ | jq '.responses[] .answers[].data.params.ech' -r \ | cargo run -q -p ech-config \ | jq[ { "version": 65037, "contents": { "key_config": { "config_id": 138, "kem_id": "DHKEM_X25519_HKDF_SHA512", "public_key": "7MUqu7LT9RDPRTQPDoGxIneC9BDIpXXRPDyHOrPMWAs=", "cipher_suites": [ { "kdf_id": "HKDF_SHA256", "aead_id": "AES_128_GCM" } ] }, "maximum_name_length": 0, "public_name": "cloudflare-esni.com", "extensions": [] } } ]