Squashed 'Sources/OpenVPNAdapter/Libraries/Vendors/openvpn/' content from commit 554d8b888

git-subtree-dir: Sources/OpenVPNAdapter/Libraries/Vendors/openvpn git-subtree-split: 554d8b88817d3a7b836e78940ed61bb11ed2bd9b
2026-04-24 00:00:05 +08:00 · 2018-07-27 18:08:58 +03:00
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+//    OpenVPN -- An application to securely tunnel IP networks
+//               over a single port, with support for SSL/TLS-based
+//               session authentication and key exchange,
+//               packet encryption, packet authentication, and
+//               packet compression.
+//
+//    Copyright (C) 2012-2017 OpenVPN Inc.
+//
+//    This program is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU Affero General Public License Version 3
+//    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 Affero General Public License for more details.
+//
+//    You should have received a copy of the GNU Affero General Public License
+//    along with this program in the COPYING file.
+//    If not, see <http://www.gnu.org/licenses/>.
+
+// Wrap an OpenSSL X509_CRL object
+
+#ifndef OPENVPN_OPENSSL_PKI_CRL_H
+#define OPENVPN_OPENSSL_PKI_CRL_H
+
+#include <string>
+#include <vector>
+
+#include <openssl/ssl.h>
+#include <openssl/bio.h>
+
+#include <openvpn/common/size.hpp>
+#include <openvpn/common/exception.hpp>
+#include <openvpn/common/rc.hpp>
+#include <openvpn/openssl/util/error.hpp>
+
+namespace openvpn {
+  namespace OpenSSLPKI {
+
+    class CRL : public RC<thread_unsafe_refcount>
+    {
+    public:
+      CRL() : crl_(nullptr) {}
+
+      explicit CRL(const std::string& crl_txt)
+	: crl_(nullptr)
+      {
+	parse_pem(crl_txt);
+      }
+
+      CRL(const CRL& other)
+	: crl_(nullptr)
+      {
+	assign(other.crl_);
+      }
+
+      void operator=(const CRL& other)
+      {
+	assign(other.crl_);
+      }
+
+      bool defined() const { return crl_ != nullptr; }
+      X509_CRL* obj() const { return crl_; }
+
+      void parse_pem(const std::string& crl_txt)
+      {
+	BIO *bio = BIO_new_mem_buf(const_cast<char *>(crl_txt.c_str()), crl_txt.length());
+	if (!bio)
+	  throw OpenSSLException();
+
+	X509_CRL *crl = PEM_read_bio_X509_CRL(bio, nullptr, nullptr, nullptr);
+	BIO_free(bio);
+	if (!crl)
+	  throw OpenSSLException("CRL::parse_pem");
+
+	erase();
+	crl_ = crl;
+      }
+
+      std::string render_pem() const
+      {
+	if (crl_)
+	  {
+	    BIO *bio = BIO_new(BIO_s_mem());
+	    const int ret = PEM_write_bio_X509_CRL(bio, crl_);
+	    if (ret == 0)
+	      {
+		BIO_free(bio);
+		throw OpenSSLException("CRL::render_pem");
+	      }
+
+	    {
+	      char *temp;
+	      const int buf_len = BIO_get_mem_data(bio, &temp);
+	      std::string ret = std::string(temp, buf_len);
+	      BIO_free(bio);
+	      return ret;
+	    }
+	  }
+	else
+	  return "";
+      }
+
+      void erase()
+      {
+	if (crl_)
+	  {
+	    X509_CRL_free(crl_);
+	    crl_ = nullptr;
+	  }
+      }
+
+      ~CRL()
+      {
+	erase();
+      }
+
+    private:
+      static X509_CRL *dup(const X509_CRL *crl)
+      {
+	if (crl)
+	  {
+	    return X509_CRL_dup(const_cast<X509_CRL *>(crl));
+	  }
+	else
+	  return nullptr;
+      }
+
+      void assign(const X509_CRL *crl)
+      {
+	erase();
+	crl_ = dup(crl);
+      }
+
+      X509_CRL *crl_;
+    };
+
+    typedef RCPtr<CRL> CRLPtr;
+
+    class CRLList : public std::vector<CRLPtr>
+    {
+    public:
+      typedef CRL Item;
+      typedef CRLPtr ItemPtr;
+
+      bool defined() const { return !empty(); }
+
+      std::string render_pem() const
+      {
+	std::string ret;
+	for (const_iterator i = begin(); i != end(); ++i)
+	  ret += (*i)->render_pem();
+	return ret;
+      }
+    };
+  }
+} // namespace openvpn
+
+#endif // OPENVPN_OPENSSL_PKI_CRL_H