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42da0a0184
For the time being, if NAT traversal is successful it simply announces it as an OSD message. In the future it will be used to inform a matchmaking server of the public port. This patch also included minor fixes to the NAT traversal implementation to make the select it demands actually doable.
84 lines
2.9 KiB
C
84 lines
2.9 KiB
C
/* Copyright (C) 2016 The RetroArch team
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*
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* ---------------------------------------------------------------------------------------
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* The following license statement only applies to this file (net_natt.h).
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* ---------------------------------------------------------------------------------------
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*
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* Permission is hereby granted, free of charge,
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* to any person obtaining a copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef _LIBRETRO_SDK_NET_NATT_H
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#define _LIBRETRO_SDK_NET_NATT_H
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#include <net/net_compat.h>
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#include <net/net_socket.h>
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struct natt_status {
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/** nfds for select when checking for input */
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int nfds;
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/** The fdset to be selected upon to check for responses */
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fd_set fds;
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/** True if there might be a request outstanding */
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bool request_outstanding;
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/** True if we've resolved an external IPv4 address */
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bool have_inet4;
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/** External IPv4 address */
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struct sockaddr_in ext_inet4_addr;
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/** True if we've resolved an external IPv6 address */
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bool have_inet6;
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#ifdef AF_INET6
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/** External IPv6 address */
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struct sockaddr_in6 ext_inet6_addr;
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#endif
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/** Internal status (currently unused) */
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void *internal;
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};
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/**
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* Initialize global NAT traversal structures (must be called once to use other
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* functions) */
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void natt_init(void);
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/** Initialize a NAT traversal status object */
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bool natt_new(struct natt_status *status);
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/** Free a NAT traversal status object */
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void natt_free(struct natt_status *status);
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/**
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* Make a port forwarding request. This may finish immediately or just send a
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* request to the network. */
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bool natt_open_port(struct natt_status *status, struct sockaddr *addr,
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socklen_t addrlen, enum socket_protocol proto);
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/**
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* Make a port forwarding request when only the port is known. Forwards any
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* address it can find. */
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bool natt_open_port_any(struct natt_status *status, uint16_t port,
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enum socket_protocol proto);
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/** Check for port forwarding responses */
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bool natt_read(struct natt_status *status);
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#endif
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