Support LibreSSL with opaque structures

Determining if OpenSSL structures are opaque now uses an autoconf check
instead of comparing the version number. Some definitions have been
moved to their own check as assumptions which were true for OpenSSL
with opaque structures did not hold for LibreSSL. Closes ticket 21359.

diff --git a/changes/21359 b/changes/21359
new file mode 100644 (file)
index 0000000..3b54c91
--- /dev/null
+++ b/changes/21359
@@ -0,0 +1,8 @@
+  o Testing
+    - tortls tests now use an autoconf check to determine if OpenSSL
+      structures are opaque, instead of an explicit version check.
+      See ticket 21359.
+
+  o Minor bugfixes (compilation)
+    - Support building with recent LibreSSL code that uses opaque
+      structures. Closes ticket 21359.

diff --git a/configure.ac b/configure.ac
index 2134a41d3f4a61358b5b691c0d3d8c9abfa5c401..f7bdd97e130a4d34f364d141feff02956d74fbf6 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -677,6 +677,11 @@ AC_CHECK_FUNCS([ \
 dnl Check if OpenSSL has scrypt implementation.
 AC_CHECK_FUNCS([ EVP_PBE_scrypt ])
 
+dnl Check if OpenSSL structures are opaque
+AC_CHECK_MEMBERS([SSL.state], , ,
+[#include <openssl/ssl.h>
+])
+
 LIBS="$save_LIBS"
 LDFLAGS="$save_LDFLAGS"
 CPPFLAGS="$save_CPPFLAGS"

diff --git a/src/test/test_tortls.c b/src/test/test_tortls.c
index 1cba617a34e64cdb5db7c6df7e215da8f2e4db4c..47455cff838d4afbfbbfd453cc081428e342d85e 100644 (file)
--- a/src/test/test_tortls.c
+++ b/src/test/test_tortls.c
@@ -38,9 +38,11 @@ ENABLE_GCC_WARNING(redundant-decls)
 #include "log_test_helpers.h"
 #define NS_MODULE tortls
 
-#if OPENSSL_VERSION_NUMBER >= OPENSSL_V_SERIES(1,1,0) \
-    && !defined(LIBRESSL_VERSION_NUMBER)
+#ifndef HAVE_SSL_STATE
 #define OPENSSL_OPAQUE
+#endif
+
+#if defined(OPENSSL_OPAQUE) && !defined(LIBRESSL_VERSION_NUMBER)
 #define SSL_STATE_STR "before SSL initialization"
 #else
 #define SSL_STATE_STR "before/accept initialization"
@@ -723,6 +725,26 @@ test_tortls_get_my_certs(void *ignored)
   (void)1;
 }
 
+#ifndef HAVE_SSL_GET_CLIENT_CIPHERS
+static SSL_CIPHER *
+get_cipher_by_name(const char *name)
+{
+  int i;
+  const SSL_METHOD *method = SSLv23_method();
+  int num = method->num_ciphers();
+
+  for (i = 0; i < num; ++i) {
+    const SSL_CIPHER *cipher = method->get_cipher(i);
+    const char *ciphername = SSL_CIPHER_get_name(cipher);
+    if (!strcmp(ciphername, name)) {
+      return (SSL_CIPHER *)cipher;
+    }
+  }
+
+  return NULL;
+}
+#endif
+
 #ifndef OPENSSL_OPAQUE
 static void
 test_tortls_get_ciphersuite_name(void *ignored)
@@ -741,23 +763,6 @@ test_tortls_get_ciphersuite_name(void *ignored)
   tor_free(ctx);
 }
 
-static SSL_CIPHER *
-get_cipher_by_name(const char *name)
-{
-  int i;
-  const SSL_METHOD *method = SSLv23_method();
-  int num = method->num_ciphers();
-  for (i = 0; i < num; ++i) {
-    const SSL_CIPHER *cipher = method->get_cipher(i);
-    const char *ciphername = SSL_CIPHER_get_name(cipher);
-    if (!strcmp(ciphername, name)) {
-      return (SSL_CIPHER *)cipher;
-    }
-  }
-
-  return NULL;
-}
-
 static SSL_CIPHER *
 get_cipher_by_id(uint16_t id)
 {