Update to mbedtls-sys 2.28, update test keys, and make sure async tests are run

mbedtls/src/bignum/mod.rs

@@ -173,7 +173,7 @@ impl Mpi {
             mpi_write_string(
                 &self.inner,
                 radix,
-                buf.as_mut_ptr() as *mut i8,
+                buf.as_mut_ptr() as *mut _,
                 buf.len(),
                 &mut olen,
             )

mbedtls/src/pk/mod.rs

@@ -129,7 +129,7 @@ const CUSTOM_PK_INFO: pk_info_t = {
         sign_func: None,
         verify_func: None,
         get_bitlen: None,
-        name: b"\0" as *const u8 as *const i8,
+        name: b"\0" as *const u8 as *const _,
         ctx_alloc_func: Some(alloc_custom_pk_ctx),
         ctx_free_func: Some(free_custom_pk_ctx),
     }

mbedtls/src/pkcs12/mod.rs

@@ -356,6 +356,7 @@ impl BERDecodable for EncryptedData {
 
 // EncryptedContentInfo from PKCS7 see RFC 2315 section 10.1
 #[derive(Debug, Clone)]
+#[allow(dead_code)]
 struct EncryptedContentInfo {
     content_type: ObjectIdentifier,
     encryption_algo: AlgorithmIdentifier,
@@ -458,6 +459,7 @@ enum Pkcs12BagSet {
 }
 
 #[derive(Debug, Clone)]
+#[allow(dead_code)]
 struct SafeBag {
     bag_id: ObjectIdentifier,
     bag_value: Pkcs12BagSet,

mbedtls/src/ssl/config.rs

@@ -23,6 +23,9 @@ use crate::ssl::context::HandshakeContext;
 use crate::ssl::ticket::TicketCallback;
 use crate::x509::{certificate, Crl, LinkedCertificate, Profile, VerifyError};
 
+#[cfg(not(feature = "std"))]
+use crate::alloc_prelude::*;
+
 extern "C" {
     fn calloc(n: usize, size: usize) -> *mut c_void;
     fn free(ptr: *mut c_void);

mbedtls/tests/alpn.rs

@@ -10,7 +10,6 @@
 extern crate mbedtls;
 
 use std::net::TcpStream;
-use std::thread;
 
 use mbedtls::pk::Pk;
 use mbedtls::rng::CtrDrbg;
@@ -83,8 +82,10 @@ fn server(mut conn: TcpStream, alpn_list: Option<&[&str]>, expected: Expected<'_
     Ok(())
 }
 
+#[cfg(unix)]
 #[test]
 fn alpn() {
+    use std::thread;
     #[derive(Clone)]
     struct TestConfig {
         client_list: Option<&'static [&'static str]>,
@@ -119,8 +120,10 @@ fn alpn() {
     }
 }
 
+#[cfg(unix)]
 #[test]
 fn nothing_in_common() {
+    use std::thread;
     let (c, s) = support::net::create_tcp_pair().unwrap();
     let c = thread::spawn(move || client(c, Some(&["a1\0", "a2\0"]), Expected::FailedHandshake(Error::SslFatalAlertMessage)).unwrap());
     let s = thread::spawn(move || server(s, Some(&["b1\0", "b2\0"]), Expected::FailedHandshake(Error::SslBadHsClientHello)).unwrap());