Support LibreSSL 2.9.1

LibreSSL 2.9.1 added generic DTLS methods.

While here, bump CircleCI.

.circleci/config.yml

@@ -286,7 +286,7 @@ workflows:
           name: x86_64-libressl-2.9
           target: x86_64-unknown-linux-gnu
           library: libressl
-          version: 2.9.0
+          version: 2.9.1
       - macos:
           name: macos
       - macos:

openssl-sys/build/cfgs.rs

@@ -22,6 +22,9 @@ pub fn get(openssl_version: Option<u64>, libressl_version: Option<u64>) -> Vec<&
         if libressl_version >= 0x2_08_01_00_0 {
             cfgs.push("libressl281");
         }
+        if libressl_version >= 0x2_09_01_00_0 {
+            cfgs.push("libressl291");
+        }
     } else {
         let openssl_version = openssl_version.unwrap();
 

openssl-sys/build/main.rs

@@ -199,6 +199,7 @@ See rust-openssl README for more information:
             (8, 1) => ('8', '1'),
             (8, _) => ('8', 'x'),
             (9, 0) => ('9', '0'),
+            (9, 1) => ('9', '1'),
             _ => version_error(),
         };
 
@@ -239,7 +240,7 @@ fn version_error() -> ! {
         "
 
 This crate is only compatible with OpenSSL 1.0.1 through 1.1.1, or LibreSSL 2.5
-through 2.9.0, but a different version of OpenSSL was found. The build is now aborting
+through 2.9.1, but a different version of OpenSSL was found. The build is now aborting
 due to this version mismatch.
 
 "

openssl-sys/src/ssl.rs

@@ -1057,7 +1057,7 @@ extern "C" {
 }
 
 cfg_if! {
-    if #[cfg(ossl110)] {
+    if #[cfg(ossl110, libressl291)] {
         extern "C" {
             pub fn TLS_method() -> *const SSL_METHOD;
 

openssl/build.rs

@@ -53,5 +53,9 @@ fn main() {
         if version >= 0x2_08_00_00_0 {
             println!("cargo:rustc-cfg=libressl280");
         }
+
+        if version >= 0x2_09_01_00_0 {
+            println!("cargo:rustc-cfg=libressl291");
+        }
     }
 }

openssl/src/ssl/mod.rs

@@ -3831,7 +3831,7 @@ cfg_if! {
 }
 
 cfg_if! {
-    if #[cfg(ossl110)] {
+    if #[cfg(ossl110, libressl291)] {
         use ffi::{TLS_method, DTLS_method};
 
         unsafe fn get_new_idx(f: ffi::CRYPTO_EX_free) -> c_int {