Add implementation

1 files changed, 63 insertions, 0 deletions

diff --git a/openssl/agent/pkcs11/pkcs11.hxx b/openssl/agent/pkcs11/pkcs11.hxx
new file mode 100644
index 0000000..e1c90b1
--- /dev/null
+++ b/openssl/agent/pkcs11/pkcs11.hxx
@@ -0,0 +1,63 @@
+// file      : openssl/agent/pkcs11/pkcs11.hxx -*- C++ -*-
+// copyright : Copyright (c) 2014-2018 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+#ifndef OPENSSL_AGENT_PKCS11_PKCS11_HXX
+#define OPENSSL_AGENT_PKCS11_PKCS11_HXX
+
+// PKCS#11 API (Cryptoki) definitions.
+//
+#include <openssl/agent/pkcs11/pkcs11.h>
+
+#include <openssl/types.hxx>
+#include <openssl/utility.hxx>
+
+namespace openssl
+{
+  namespace agent
+  {
+    namespace pkcs11
+    {
+      // For simplicity we will not handle multiple PKCS#11 modules
+      // simultaneously. The first one loaded will stay till the end of the
+      // process lifetime.
+      //
+
+      // Return the PKCS#11 API pointer. If requested, ignore non-existent
+      // module returning NULL.
+      //
+      // On the first call load the PKCS#11 module using the specified path
+      // and initialize the API. Return the same pointer on the subsequent
+      // calls regardless of the path. Throw runtime_error if anything goes
+      // wrong.
+      //
+      CK_FUNCTION_LIST*
+      api (const path&, bool ignore_nonexistent = false);
+
+      // Return a pointer to the previously initialized PKCS#11 API.
+      //
+      CK_FUNCTION_LIST*
+      api ();
+
+      // Throw runtime_error describing a PKCS#11 API error.
+      //
+      [[noreturn]] void
+      throw_api_error (CK_RV error, string what);
+
+      // Convert API string representation to a regular one.
+      //
+      // PKCS#11 API struct string members are fixed-sized unsigned character
+      // arrays right-padded with the space character. Return such a string
+      // with the trailing spaces stripped.
+      //
+      inline string
+      api_string (const unsigned char* s, size_t n)
+      {
+        for (; n != 0 && s[n - 1] == ' '; --n) ;
+        return string (reinterpret_cast<const char*> (s), n);
+      }
+    }
+  }
+}
+
+#endif // OPENSSL_AGENT_PKCS11_PKCS11_HXX