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/*
* This file is part of the Nice GLib ICE library.
*
* (C) 2006-2010 Collabora Ltd.
* Contact: Youness Alaoui
* (C) 2006-2010 Nokia Corporation. All rights reserved.
* Contact: Kai Vehmanen
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Nice GLib ICE library.
*
* The Initial Developers of the Original Code are Collabora Ltd and Nokia
* Corporation. All Rights Reserved.
*
* Contributors:
* Dafydd Harries, Collabora Ltd.
* Youness Alaoui, Collabora Ltd.
* Kai Vehmanen, Nokia
*
* Alternatively, the contents of this file may be used under the terms of the
* the GNU Lesser General Public License Version 2.1 (the "LGPL"), in which
* case the provisions of LGPL are applicable instead of those above. If you
* wish to allow use of your version of this file only under the terms of the
* LGPL and not to allow others to use your version of this file under the
* MPL, indicate your decision by deleting the provisions above and replace
* them with the notice and other provisions required by the LGPL. If you do
* not delete the provisions above, a recipient may use your version of this
* file under either the MPL or the LGPL.
*/
#ifndef _NICE_COMPONENT_H
#define _NICE_COMPONENT_H
#include <glib.h>
typedef struct _Component Component;
#include "agent.h"
#include "candidate.h"
#include "stun/stunagent.h"
#include "stun/usages/timer.h"
#include "pseudotcp.h"
#include "stream.h"
#include "socket.h"
G_BEGIN_DECLS
/* (ICE ยง4.1.1.1, ID-19)
* ""For RTP-based media streams, the RTP itself has a component
* ID of 1, and RTCP a component ID of 2. If an agent is using RTCP it MUST
* obtain a candidate for it. If an agent is using both RTP and RTCP, it
* would end up with 2*K host candidates if an agent has K interfaces.""
*/
typedef struct _CandidatePair CandidatePair;
typedef struct _CandidatePairKeepalive CandidatePairKeepalive;
typedef struct _IncomingCheck IncomingCheck;
struct _CandidatePairKeepalive
{
NiceAgent *agent;
GSource *tick_source;
guint stream_id;
guint component_id;
StunTimer timer;
uint8_t stun_buffer[STUN_MAX_MESSAGE_SIZE];
StunMessage stun_message;
};
struct _CandidatePair
{
NiceCandidate *local;
NiceCandidate *remote;
guint64 priority; /**< candidate pair priority */
CandidatePairKeepalive keepalive;
};
struct _IncomingCheck
{
NiceAddress from;
NiceSocket *local_socket;
guint32 priority;
gboolean use_candidate;
uint8_t *username;
uint16_t username_len;
};
typedef struct {
NiceAgent *agent;
Stream *stream;
Component *component;
} TcpUserData;
struct _Component
{
NiceComponentType type;
guint id; /**< component id */
NiceComponentState state;
GSList *local_candidates; /**< list of Candidate objs */
GSList *remote_candidates; /**< list of Candidate objs */
GSList *sockets; /**< list of NiceSocket objs */
GSList *gsources; /**< list of GSource objs */
GSList *incoming_checks; /**< list of IncomingCheck objs */
GList *turn_servers; /**< List of TURN servers */
CandidatePair selected_pair; /**< independent from checklists,
see ICE 11.1. "Sending Media" (ID-19) */
NiceCandidate *restart_candidate; /**< for storing active remote candidate during a restart */
NiceAgentRecvFunc g_source_io_cb; /**< function called on io cb */
gpointer data; /**< data passed to the io function */
GMainContext *ctx; /**< context for data callbacks for this
component */
PseudoTcpSocket *tcp;
GSource* tcp_clock;
TcpUserData *tcp_data;
gboolean tcp_readable;
guint min_port;
guint max_port;
};
Component *
component_new (guint component_id);
void
component_free (Component *cmp);
gboolean
component_find_pair (Component *cmp, NiceAgent *agent, const gchar *lfoundation, const gchar *rfoundation, CandidatePair *pair);
gboolean
component_restart (Component *cmp);
void
component_update_selected_pair (Component *component, const CandidatePair *pair);
NiceCandidate *
component_find_remote_candidate (const Component *component, const NiceAddress *addr, NiceCandidateTransport transport);
NiceCandidate *
component_set_selected_remote_candidate (NiceAgent *agent, Component *component,
NiceCandidate *candidate);
G_END_DECLS
#endif /* _NICE_COMPONENT_H */
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