ice.h

/*
 * Copyright 1999-2006 University of Chicago
 * 
 * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef __ICE_I__

#define __ICE_I__

#ifdef _WIN32
#include <winsock2.h>
#else
#include <sys/socket.h>
#include <sys/types.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <netdb.h>
#endif

#include <nice/agent.h>
#include <glib.h>

#define ICE_SUCCESS 0
#define ICE_FAILURE -1

struct icedata {
    NiceAgent       *agent;
    GMainLoop       *gloop;
    GMainContext    *gcontext;
    GThread         *gloopthread;
    guint           stream_id;

    NiceAddress     *bind_addr;
    NiceAddress     *remote_addr;
    gpointer        sockptr;

    gboolean        selected_pair_done;
    gboolean        gather_done;
    gboolean        negotiate_done;
    GMutex          *state_mutex;
    GCond           *gather_cv;
    GCond           *negotiate_cv;
};

/*
   userfrag(513) -- rfc5389 15.3
   + sep(1) -- colon
   + password(80) -- pjnath limit
   + max candidates *
   (
       space(1)
       + foundation(32) + sep(1) -- rfc5245 15.1
       + prio(10) + sep(1) -- rfc5245 4.1.2, 15.1
       + addr(45) + sep(1)
       + port(5) + sep(1)
       + type(5) -- rfc5245 15.1
   ) + null(1)
  
   (foundation):(prio):(addr):(port):(type)
*/
#define LOCAL_DATA_SIZE (513 + 1 + 80 \
                         + NICE_AGENT_MAX_REMOTE_CANDIDATES * ( \
                             1 + 33 + 11 + INET6_ADDRSTRLEN + 6 + 7) \
                         + 1)


int ice_lib_init();
void ice_lib_shutdown();

/* upas */
int ice_init(struct icedata *icedata, const char *stun_host,
             unsigned int stun_port, int controlling);
int ice_get_local_data(struct icedata *ice_data, char *out, size_t outsize);

/* uprt */
int ice_negotiate(struct icedata *ice_data, int argc, char *rdata[]);
int ice_get_negotiated_addrs(struct icedata *ice_data,
                             struct sockaddr *laddr,
                             socklen_t *laddrlen,
                             struct sockaddr *raddr,
                             socklen_t *raddrlen);

int ice_get_negotiated_sock(struct icedata *ice_data, int *sock_dup);

/* cleanup */
void ice_destroy(struct icedata *ice_data);

char **ice_parse_args(char *line, int *argc);

#endif