Imported Upstream version 2.3_rc1

1 files changed, 192 insertions, 0 deletions

diff --git a/src/openvpn/pkcs11_openssl.c b/src/openvpn/pkcs11_openssl.c
new file mode 100644
index 0000000..af843b7
--- /dev/null
+++ b/src/openvpn/pkcs11_openssl.c
@@ -0,0 +1,192 @@
+/*
+ *  OpenVPN -- An application to securely tunnel IP networks
+ *             over a single TCP/UDP port, with support for SSL/TLS-based
+ *             session authentication and key exchange,
+ *             packet encryption, packet authentication, and
+ *             packet compression.
+ *
+ *  Copyright (C) 2002-2010 OpenVPN Technologies, Inc. <sales@openvpn.net>
+ *  Copyright (C) 2010 Fox Crypto B.V. <openvpn@fox-it.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2
+ *  as published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program (see the file COPYING included with this
+ *  distribution); if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/**
+ * @file PKCS #11 OpenSSL backend
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#elif defined(_MSC_VER)
+#include "config-msvc.h"
+#endif
+
+#include "syshead.h"
+
+#if defined(ENABLE_PKCS11) && defined(ENABLE_CRYPTO_OPENSSL)
+
+#include "errlevel.h"
+#include "pkcs11_backend.h"
+#include "ssl_verify.h"
+#include <pkcs11-helper-1.0/pkcs11h-openssl.h>
+
+int
+pkcs11_init_tls_session(pkcs11h_certificate_t certificate,
+    struct tls_root_ctx * const ssl_ctx)
+{
+  int ret = 1;
+
+  X509 *x509 = NULL;
+  RSA *rsa = NULL;
+  pkcs11h_openssl_session_t openssl_session = NULL;
+
+  if ((openssl_session = pkcs11h_openssl_createSession (certificate)) == NULL)
+    {
+      msg (M_WARN, "PKCS#11: Cannot initialize openssl session");
+      goto cleanup;
+    }
+
+  /*
+   * Will be released by openssl_session
+   */
+  certificate = NULL;
+
+  if ((rsa = pkcs11h_openssl_session_getRSA (openssl_session)) == NULL)
+    {
+      msg (M_WARN, "PKCS#11: Unable get rsa object");
+      goto cleanup;
+    }
+
+  if ((x509 = pkcs11h_openssl_session_getX509 (openssl_session)) == NULL)
+    {
+      msg (M_WARN, "PKCS#11: Unable get certificate object");
+      goto cleanup;
+    }
+
+  if (!SSL_CTX_use_RSAPrivateKey (ssl_ctx->ctx, rsa))
+    {
+      msg (M_WARN, "PKCS#11: Cannot set private key for openssl");
+      goto cleanup;
+    }
+
+  if (!SSL_CTX_use_certificate (ssl_ctx->ctx, x509))
+    {
+      msg (M_WARN, "PKCS#11: Cannot set certificate for openssl");
+      goto cleanup;
+    }
+  ret = 0;
+
+cleanup:
+  /*
+   * Certificate freeing is usually handled by openssl_session.
+   * If something went wrong, creating the session we have to do it manually.
+   */
+  if (certificate != NULL) {
+    pkcs11h_certificate_freeCertificate (certificate);
+    certificate = NULL;
+  }
+
+  /*
+   * openssl objects have reference
+   * count, so release them
+   */
+  if (x509 != NULL)
+    {
+      X509_free (x509);
+      x509 = NULL;
+    }
+
+  if (rsa != NULL)
+    {
+      RSA_free (rsa);
+      rsa = NULL;
+    }
+
+  if (openssl_session != NULL)
+    {
+      pkcs11h_openssl_freeSession (openssl_session);
+      openssl_session = NULL;
+    }
+  return ret;
+}
+
+char *
+pkcs11_certificate_dn (pkcs11h_certificate_t certificate, struct gc_arena *gc)
+{
+  X509 *x509 = NULL;
+
+  char *dn = NULL;
+
+  if ((x509 = pkcs11h_openssl_getX509 (certificate)) == NULL)
+    {
+      msg (M_FATAL, "PKCS#11: Cannot get X509");
+      goto cleanup;
+    }
+
+  dn = x509_get_subject (x509, gc);
+
+cleanup:
+  if (x509 != NULL)
+    {
+      X509_free (x509);
+      x509 = NULL;
+    }
+
+  return dn;
+}
+
+int
+pkcs11_certificate_serial (pkcs11h_certificate_t certificate, char *serial,
+    size_t serial_len)
+{
+  X509 *x509 = NULL;
+  BIO *bio = NULL;
+  int ret = 1;
+  int n;
+
+  if ((x509 = pkcs11h_openssl_getX509 (certificate)) == NULL)
+    {
+      msg (M_FATAL, "PKCS#11: Cannot get X509");
+      goto cleanup;
+    }
+
+  if ((bio = BIO_new (BIO_s_mem ())) == NULL)
+    {
+      msg (M_FATAL, "PKCS#11: Cannot create BIO");
+      goto cleanup;
+    }
+
+  i2a_ASN1_INTEGER(bio, X509_get_serialNumber (x509));
+  n = BIO_read (bio, serial, serial_len-1);
+
+  if (n<0) {
+    serial[0] = '\x0';
+  }
+  else {
+    serial[n] = 0;
+  }
+
+  ret = 0;
+
+cleanup:
+
+  if (x509 != NULL)
+    {
+      X509_free (x509);
+      x509 = NULL;
+    }
+  return ret;
+}
+#endif /* defined(ENABLE_PKCS11) && defined(ENABLE_OPENSSL) */