rust: bssl-tls: Add more RPK related configurations

Signed-off-by: Xiangfei Ding <xfding@google.com>
Change-Id: I71d2f6925873f7cbdb65ae3c2528ae3c6a6a6964
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/97947
Presubmit-BoringSSL-Verified: boringssl-scoped@luci-project-accounts.iam.gserviceaccount.com <boringssl-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>

rust/bssl-tls/src/connection/credentials.rs

diff --git a/rust/bssl-tls/src/connection/credentials.rs b/rust/bssl-tls/src/connection/credentials.rs
index c492f3e..8cce65e 100644
--- a/rust/bssl-tls/src/connection/credentials.rs
+++ b/rust/bssl-tls/src/connection/credentials.rs
@@ -344,6 +344,24 @@
     }
 }
 
+/// # Raw Public Key
+impl<R, M> TlsConnectionInHandshake<'_, R, M> {
+    /// Set acceptable peer certificate types
+    pub fn set_accepted_peer_cert_types(
+        &mut self,
+        types: &[CertificateType],
+    ) -> Result<&mut Self, Error> {
+        let (types, types_len) = slice_into_ffi_raw_parts(types);
+        check_lib_error!(unsafe {
+            // Safety:
+            // - `self.ptr()` is a valid handle.
+            // - `CertificateType` is a `u8` with acceptable values by construction.
+            bssl_sys::SSL_set1_accepted_peer_cert_types(self.ptr(), types as *const _, types_len)
+        });
+        Ok(self)
+    }
+}
+
 impl<'a, R, M> EstablishedTlsConnection<'a, R, M> {
     /// Export keying material from this connection into a buffer of a chosen length,
     /// as per [RFC 5705].