From e5123d266b07976e3e8e2a42b3f6630e3b680fcb Mon Sep 17 00:00:00 2001
From: Steven Fackler <sfackler@gmail.com>
Date: Fri, 16 Feb 2018 22:24:34 -0800
Subject: Bind remove and get session callbacks

---
 openssl/src/ssl/callbacks.rs | 50 +++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 49 insertions(+), 1 deletion(-)

(limited to 'openssl/src/ssl/callbacks.rs')

diff --git a/openssl/src/ssl/callbacks.rs b/openssl/src/ssl/callbacks.rs
index b11cac7e..0e7299e3 100644
--- a/openssl/src/ssl/callbacks.rs
+++ b/openssl/src/ssl/callbacks.rs
@@ -12,7 +12,8 @@ use dh::Dh;
 #[cfg(any(all(feature = "v101", ossl101), all(feature = "v102", ossl102)))]
 use ec::EcKey;
 use pkey::Params;
-use ssl::{get_callback_idx, get_ssl_callback_idx, SniError, SslAlert, SslRef, SslSession};
+use ssl::{get_callback_idx, get_ssl_callback_idx, SniError, SslAlert, SslContextRef, SslRef,
+          SslSession, SslSessionRef};
 #[cfg(any(all(feature = "v102", ossl102), all(feature = "v110", ossl110),
           all(feature = "v111", ossl111)))]
 use ssl::AlpnError;
@@ -295,3 +296,50 @@ where
     // the return code doesn't indicate error vs success, but whether or not we consumed the session
     1
 }
+
+pub unsafe extern "C" fn raw_remove_session<F>(
+    ctx: *mut ffi::SSL_CTX,
+    session: *mut ffi::SSL_SESSION,
+) where
+    F: Fn(&SslContextRef, &SslSessionRef) + 'static + Sync + Send,
+{
+    let callback = ffi::SSL_CTX_get_ex_data(ctx, get_callback_idx::<F>());
+    let callback = &*(callback as *mut F);
+
+    let ctx = SslContextRef::from_ptr(ctx);
+    let session = SslSessionRef::from_ptr(session);
+
+    callback(ctx, session)
+}
+
+#[cfg(any(ossl110, ossl111))]
+type DataPtr = *const c_uchar;
+#[cfg(not(any(ossl110, ossl111)))]
+type DataPtr = *mut c_uchar;
+
+pub unsafe extern "C" fn raw_get_session<F>(
+    ssl: *mut ffi::SSL,
+    data: DataPtr,
+    len: c_int,
+    copy: *mut c_int,
+) -> *mut ffi::SSL_SESSION
+where
+    F: Fn(&mut SslRef, &[u8]) -> Option<SslSession> + 'static + Sync + Send,
+{
+    let ctx = ffi::SSL_get_SSL_CTX(ssl as *const _);
+    let callback = ffi::SSL_CTX_get_ex_data(ctx, get_callback_idx::<F>());
+    let callback = &*(callback as *mut F);
+
+    let ssl = SslRef::from_ptr_mut(ssl);
+    let data = slice::from_raw_parts(data as *const u8, len as usize);
+
+    match callback(ssl, data) {
+        Some(session) => {
+            let p = session.as_ptr();
+            mem::forget(p);
+            *copy = 0;
+            p
+        }
+        None => ptr::null_mut(),
+    }
+}
-- 
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