From ee737de709173dceae67398f756896613727df82 Mon Sep 17 00:00:00 2001
From: stormshield-gt <143998166+stormshield-gt@users.noreply.github.com.>
Date: Mon, 28 Oct 2024 08:48:10 +0100
Subject: [PATCH] crypto: expose negociated_key_exchange_group in the handshake
 data

---
 quinn-proto/src/crypto/rustls.rs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/quinn-proto/src/crypto/rustls.rs b/quinn-proto/src/crypto/rustls.rs
index 02d26a1c60..53f5fc6f10 100644
--- a/quinn-proto/src/crypto/rustls.rs
+++ b/quinn-proto/src/crypto/rustls.rs
@@ -11,7 +11,7 @@ use rustls::{
     client::danger::ServerCertVerifier,
     pki_types::{CertificateDer, PrivateKeyDer, ServerName},
     quic::{Connection, HeaderProtectionKey, KeyChange, PacketKey, Secrets, Suite, Version},
-    CipherSuite,
+    CipherSuite, NamedGroup,
 };
 
 use crate::{
@@ -69,6 +69,11 @@ impl crypto::Session for TlsSession {
                 .negotiated_cipher_suite()
                 .expect("cipher is negotiated")
                 .suite(),
+            negotiated_key_exchange_group: self
+                .inner
+                .negotiated_key_exchange_group()
+                .expect("key exchange group is negociated")
+                .name(),
         }))
     }
 
@@ -263,6 +268,8 @@ pub struct HandshakeData {
     pub server_name: Option<String>,
     /// The ciphersuite negotiated with the peer
     pub negotiated_cipher_suite: CipherSuite,
+    /// The key exchange group negotiated with the peer
+    pub negotiated_key_exchange_group: NamedGroup,
 }
 
 /// A QUIC-compatible TLS client configuration