#include "gnunet_util_lib.h"
+/**
+ * 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;
+
+ /**
+ * GNUNET_YES to notify only after completion of the mesh-level connection,
+ * GNUNET_NO to notify as soon as an address was allocated (in nbo).
+ */
+ int32_t nac;
+
+ /**
+ * 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;
+
+ /**
+ * Address family used for the destination address (AF_INET or AF_INET6, in nbo)
+ */
+ int32_t addr_af;
+
+ /**
+ * Unique ID to match a future response to this request.
+ * Picked by the client.
+ */
+ uint64_t request_id;
+
+ /* 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_IP
+ */
+ struct GNUNET_MessageHeader header;
+
+ /**
+ * GNUNET_YES to notify only after completion of the mesh-level connection,
+ * GNUNET_NO to notify as soon as an address was allocated (in nbo).
+ */
+ int32_t nac;
+
+ /**
+ * 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;
+
+ /**
+ * Address family desired for the result (AF_INET or AF_INET6 or AF_UNSPEC, in nbo)
+ */
+ int32_t result_af;
+
+ /**
+ * Target peer offering the service.
+ */
+ struct GNUNET_PeerIdentity target;
+
+ /**
+ * Service descriptor identifying the service.
+ */
+ GNUNET_HashCode service_descriptor;
+
+ /**
+ * Unique ID to match a future response to this request.
+ * Picked by the client.
+ */
+ uint64_t request_id;
+
+};
+
+
+/**
+ * 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;
+ /**
+ * Unique ID to match the response to a request.
+ */
+ uint64_t request_id;
+ /* followed by destination address ('struct in_addr' or 'struct in6_addr') */
+
+};
#endif