71 lines
1.8 KiB
C
71 lines
1.8 KiB
C
#ifndef _RTP_PROXY_H
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#define _RTP_PROXY_H
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/* RTP proxy handling for ip.access nanoBTS */
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/* (C) 2009 by Harald Welte <laforge@gnumonks.org>
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* All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#include <netinet/in.h>
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#include <openbsc/linuxlist.h>
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#include <openbsc/select.h>
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enum rtp_rx_action {
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RTP_NONE,
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RTP_PROXY,
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RTP_RECV_UPSTREAM,
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};
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struct rtp_sub_socket {
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struct sockaddr_in sin_local;
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struct sockaddr_in sin_remote;
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struct bsc_fd bfd;
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/* linked list of to-be-transmitted msgb's */
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struct llist_head tx_queue;
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};
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struct rtp_socket {
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struct llist_head list;
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struct rtp_sub_socket rtp;
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struct rtp_sub_socket rtcp;
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/* what should we do on receive? */
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enum rtp_rx_action rx_action;
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union {
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struct {
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struct rtp_socket *other_sock;
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} proxy;
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struct {
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void (*recv_cb)(struct msgb *msg);
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} receive;
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};
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};
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struct rtp_socket *rtp_socket_create(void);
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int rtp_socket_bind(struct rtp_socket *rs, u_int32_t ip);
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int rtp_socket_connect(struct rtp_socket *rs, u_int32_t ip, u_int16_t port);
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int rtp_socket_proxy(struct rtp_socket *this, struct rtp_socket *other);
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int rtp_socket_free(struct rtp_socket *rs);
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#endif /* _RTP_PROXY_H */
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