/*
This file is part of GNUnet.
- (C) 2012 Christian Grothoff
+ Copyright (C) 2012 Christian Grothoff
- GNUnet is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 3, or (at your
- option) any later version.
+ GNUnet is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Affero General Public License as published
+ by the Free Software Foundation, either version 3 of the License,
+ or (at your option) any later version.
GNUnet 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.
+ Affero General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
-*/
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+ SPDX-License-Identifier: AGPL3.0-or-later
+ */
/**
* @file vpn/vpn.h
#include "gnunet_util_lib.h"
+GNUNET_NETWORK_STRUCT_BEGIN
+
+/**
+ * Message send by the VPN client to the VPN service requesting
+ * the setup of a redirection from some IP via an exit node to
+ * some global Internet address.
+ */
+struct RedirectToIpRequestMessage {
+ /**
+ * Type is #GNUNET_MESSAGE_TYPE_VPN_CLIENT_REDIRECT_TO_IP
+ */
+ struct GNUNET_MessageHeader header;
+
+ /**
+ * Always zero.
+ */
+ uint32_t reserved GNUNET_PACKED;
+
+ /**
+ * How long should the redirection be maintained at most?
+ */
+ struct GNUNET_TIME_AbsoluteNBO expiration_time;
+
+ /**
+ * Address family desired for the result (AF_INET or AF_INET6 or AF_UNSPEC, in nbo)
+ */
+ int32_t result_af GNUNET_PACKED;
+
+ /**
+ * Address family used for the destination address (AF_INET or AF_INET6, in nbo)
+ */
+ int32_t addr_af GNUNET_PACKED;
+
+ /**
+ * Unique ID to match a future response to this request.
+ * Picked by the client.
+ */
+ uint64_t request_id GNUNET_PACKED;
+
+ /* followed by destination address ('struct in_addr' or 'struct in6_addr') */
+};
+
+
+/**
+ * Message send by the VPN client to the VPN service requesting
+ * the setup of a redirection from some IP to a service running
+ * at a particular peer.
+ */
+struct RedirectToServiceRequestMessage {
+ /**
+ * Type is #GNUNET_MESSAGE_TYPE_VPN_CLIENT_REDIRECT_TO_SERVICE
+ */
+ struct GNUNET_MessageHeader header;
+
+ /**
+ * Always zero.
+ */
+ uint32_t reserved GNUNET_PACKED;
+
+ /**
+ * How long should the redirection be maintained at most?
+ */
+ struct GNUNET_TIME_AbsoluteNBO expiration_time;
+
+ /**
+ * Desired protocol (IPPROTO_UDP or IPPROTO_TCP)
+ */
+ int32_t protocol GNUNET_PACKED;
+
+ /**
+ * Address family desired for the result (AF_INET or AF_INET6 or AF_UNSPEC, in nbo)
+ */
+ int32_t result_af GNUNET_PACKED;
+
+ /**
+ * Target peer offering the service.
+ */
+ struct GNUNET_PeerIdentity target;
+
+ /**
+ * Service descriptor identifying the service.
+ */
+ struct GNUNET_HashCode service_descriptor;
+
+ /**
+ * Unique ID to match a future response to this request.
+ * Picked by the client.
+ */
+ uint64_t request_id GNUNET_PACKED;
+};
+
+
+/**
+ * Response from the VPN service to a VPN client informing about
+ * the IP that was assigned for the requested redirection.
+ */
+struct RedirectToIpResponseMessage {
+ /**
+ * Type is #GNUNET_MESSAGE_TYPE_VPN_CLIENT_USE_IP
+ */
+ struct GNUNET_MessageHeader header;
+
+ /**
+ * Address family of the allocated address that follows; will match
+ * "result_af" from the request, of be "AF_UNSPEC" on errors.
+ */
+ int32_t result_af GNUNET_PACKED;
+
+ /**
+ * Unique ID to match the response to a request.
+ */
+ uint64_t request_id GNUNET_PACKED;
+ /* followed by destination address ('struct in_addr' or 'struct in6_addr') */
+};
+GNUNET_NETWORK_STRUCT_END
#endif