connect-tests: add EchConfig fetch tests

This commit adds a new `connect-tests/tests/ech.rs` module that performs
a DNS over HTTPS lookup for HTTPS type records, finding `EchConfig`s and
testing we can deserialize the raw form into the Rustls representation
without error.

Presently it tests against:
* `crypto.cloudflare.com`
* `defo.ie`
* `tls-ech.dev`

Since these are network based tests they need to live in `connect-tests`
to avoid flakyness during normal CI runs.

In previous WIP branches this was done as part of an overall end-to-end
example of using ECH, but we can test this in isolation ahead of having
full ECH support.
This commit is contained in:
Daniel McCarney 2023-11-02 17:03:35 -04:00
parent 8583cd504c
commit de9bf1d2e9
3 changed files with 700 additions and 13 deletions

657
Cargo.lock generated
View File

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"rustls-pemfile",
"rustls 0.22.0-alpha.4",
"rustls-pemfile 2.0.0-alpha.1",
"rustls-pki-types",
"serde",
"serde_derive",
"webpki-roots",
"webpki-roots 0.26.0-alpha.1",
]
[[package]]
name = "rustls-pemfile"
version = "1.0.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2d3987094b1d07b653b7dfdc3f70ce9a1da9c51ac18c1b06b662e4f9a0e9f4b2"
dependencies = [
"base64",
]
[[package]]
@ -936,14 +1374,24 @@ dependencies = [
"hmac",
"rand_core",
"rsa",
"rustls",
"rustls 0.22.0-alpha.4",
"rustls-pki-types",
"rustls-webpki",
"rustls-webpki 0.102.0-alpha.6",
"sha2",
"webpki-roots",
"webpki-roots 0.26.0-alpha.1",
"x25519-dalek",
]
[[package]]
name = "rustls-webpki"
version = "0.101.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8b6275d1ee7a1cd780b64aca7726599a1dbc893b1e64144529e55c3c2f745765"
dependencies = [
"ring 0.17.5",
"untrusted 0.9.0",
]
[[package]]
name = "rustls-webpki"
version = "0.102.0-alpha.6"
@ -967,6 +1415,16 @@ version = "1.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
[[package]]
name = "sct"
version = "0.7.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "da046153aa2352493d6cb7da4b6e5c0c057d8a1d0a9aa8560baffdd945acd414"
dependencies = [
"ring 0.17.5",
"untrusted 0.9.0",
]
[[package]]
name = "semver"
version = "1.0.20"
@ -1014,12 +1472,31 @@ dependencies = [
"rand_core",
]
[[package]]
name = "slab"
version = "0.4.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8f92a496fb766b417c996b9c5e57daf2f7ad3b0bebe1ccfca4856390e3d3bb67"
dependencies = [
"autocfg",
]
[[package]]
name = "smallvec"
version = "1.11.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "942b4a808e05215192e39f4ab80813e599068285906cc91aa64f923db842bd5a"
[[package]]
name = "socket2"
version = "0.5.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7b5fac59a5cb5dd637972e5fca70daf0523c9067fcdc4842f053dae04a18f8e9"
dependencies = [
"libc",
"windows-sys",
]
[[package]]
name = "spin"
version = "0.5.2"
@ -1074,6 +1551,26 @@ dependencies = [
"winapi-util",
]
[[package]]
name = "thiserror"
version = "1.0.50"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f9a7210f5c9a7156bb50aa36aed4c95afb51df0df00713949448cf9e97d382d2"
dependencies = [
"thiserror-impl",
]
[[package]]
name = "thiserror-impl"
version = "1.0.50"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "266b2e40bc00e5a6c09c3584011e08b06f123c00362c92b975ba9843aaaa14b8"
dependencies = [
"proc-macro2",
"quote",
"syn",
]
[[package]]
name = "time"
version = "0.3.30"
@ -1092,18 +1589,119 @@ version = "0.1.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ef927ca75afb808a4d64dd374f00a2adf8d0fcff8e7b184af886c3c87ec4a3f3"
[[package]]
name = "tinyvec"
version = "1.6.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "87cc5ceb3875bb20c2890005a4e226a4651264a5c75edb2421b52861a0a0cb50"
dependencies = [
"tinyvec_macros",
]
[[package]]
name = "tinyvec_macros"
version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
[[package]]
name = "tokio"
version = "1.33.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4f38200e3ef7995e5ef13baec2f432a6da0aa9ac495b2c0e8f3b7eec2c92d653"
dependencies = [
"backtrace",
"bytes",
"libc",
"mio",
"num_cpus",
"pin-project-lite",
"socket2",
"windows-sys",
]
[[package]]
name = "tokio-rustls"
version = "0.24.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c28327cf380ac148141087fbfb9de9d7bd4e84ab5d2c28fbc911d753de8a7081"
dependencies = [
"rustls 0.21.8",
"tokio",
]
[[package]]
name = "tokio-util"
version = "0.7.10"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5419f34732d9eb6ee4c3578b7989078579b7f039cbbb9ca2c4da015749371e15"
dependencies = [
"bytes",
"futures-core",
"futures-sink",
"pin-project-lite",
"tokio",
"tracing",
]
[[package]]
name = "tracing"
version = "0.1.40"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c3523ab5a71916ccf420eebdf5521fcef02141234bbc0b8a49f2fdc4544364ef"
dependencies = [
"pin-project-lite",
"tracing-attributes",
"tracing-core",
]
[[package]]
name = "tracing-attributes"
version = "0.1.27"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "34704c8d6ebcbc939824180af020566b01a7c01f80641264eba0999f6c2b6be7"
dependencies = [
"proc-macro2",
"quote",
"syn",
]
[[package]]
name = "tracing-core"
version = "0.1.32"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c06d3da6113f116aaee68e4d601191614c9053067f9ab7f6edbcb161237daa54"
dependencies = [
"once_cell",
]
[[package]]
name = "typenum"
version = "1.17.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "42ff0bf0c66b8238c6f3b578df37d0b7848e55df8577b3f74f92a69acceeb825"
[[package]]
name = "unicode-bidi"
version = "0.3.13"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "92888ba5573ff080736b3648696b70cafad7d250551175acbaa4e0385b3e1460"
[[package]]
name = "unicode-ident"
version = "1.0.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
[[package]]
name = "unicode-normalization"
version = "0.1.22"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5c5713f0fc4b5db668a2ac63cdb7bb4469d8c9fed047b1d0292cc7b0ce2ba921"
dependencies = [
"tinyvec",
]
[[package]]
name = "universal-hash"
version = "0.5.1"
@ -1126,6 +1724,17 @@ version = "0.9.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8ecb6da28b8a351d773b68d5825ac39017e680750f980f3a1a85cd8dd28a47c1"
[[package]]
name = "url"
version = "2.4.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "143b538f18257fac9cad154828a57c6bf5157e1aa604d4816b5995bf6de87ae5"
dependencies = [
"form_urlencoded",
"idna",
"percent-encoding",
]
[[package]]
name = "utf8parse"
version = "0.2.1"
@ -1208,6 +1817,12 @@ dependencies = [
"wasm-bindgen",
]
[[package]]
name = "webpki-roots"
version = "0.25.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "14247bb57be4f377dfb94c72830b8ce8fc6beac03cf4bf7b9732eadd414123fc"
[[package]]
name = "webpki-roots"
version = "0.26.0-alpha.1"
@ -1217,6 +1832,12 @@ dependencies = [
"rustls-pki-types",
]
[[package]]
name = "widestring"
version = "1.0.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "653f141f39ec16bba3c5abe400a0c60da7468261cc2cbf36805022876bc721a8"
[[package]]
name = "winapi"
version = "0.3.9"
@ -1314,6 +1935,16 @@ version = "0.48.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
[[package]]
name = "winreg"
version = "0.50.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "524e57b2c537c0f9b1e69f1965311ec12182b4122e45035b1508cd24d2adadb1"
dependencies = [
"cfg-if",
"windows-sys",
]
[[package]]
name = "x25519-dalek"
version = "2.0.0"

View File

@ -15,3 +15,4 @@ rustls = { path = "../rustls", features = [ "logging" ]}
[dev-dependencies]
regex = "1.0"
ring = "0.17"
hickory-resolver = { version = "0.24", features = ["dns-over-https-rustls", "webpki-roots"] }

View File

@ -0,0 +1,55 @@
mod ech_config {
use hickory_resolver::config::{ResolverConfig, ResolverOpts};
use hickory_resolver::proto::rr::rdata::svcb::{SvcParamKey, SvcParamValue};
use hickory_resolver::proto::rr::{RData, RecordType};
use hickory_resolver::Resolver;
use rustls::internal::msgs::codec::{Codec, Reader};
use rustls::internal::msgs::enums::EchVersion;
use rustls::internal::msgs::handshake::EchConfig;
#[test]
fn cloudflare() {
test_deserialize_ech_config("crypto.cloudflare.com");
}
#[test]
fn defo_ie() {
test_deserialize_ech_config("defo.ie");
}
#[test]
fn tls_ech_dev() {
test_deserialize_ech_config("tls-ech.dev");
}
/// Lookup the ECH config for a domain and deserialize it.
fn test_deserialize_ech_config(domain: &str) {
let resolver =
Resolver::new(ResolverConfig::google_https(), ResolverOpts::default()).unwrap();
let raw_value = lookup_ech(&resolver, domain);
let parsed_config = EchConfig::read(&mut Reader::init(&raw_value))
.expect("failed to deserialize ECH config");
assert_eq!(parsed_config.version, EchVersion::V14);
}
/// Use `resolver` to make an HTTPS record type query for `domain`, returning the
/// first SvcParam EchConfig value found, panicing if none are returned.
fn lookup_ech(resolver: &Resolver, domain: &str) -> Vec<u8> {
resolver
.lookup(domain, RecordType::HTTPS)
.expect("failed to lookup HTTPS record type")
.record_iter()
.find_map(|r| match r.data() {
Some(RData::HTTPS(svcb)) => svcb
.svc_params()
.iter()
.find_map(|sp| match sp {
(SvcParamKey::EchConfig, SvcParamValue::EchConfig(e)) => Some(e.clone().0),
_ => None,
}),
_ => None,
})
.expect("missing expected HTTPS SvcParam EchConfig record")
}
}