exconf.c

libeXosip2-3.0.3.tar.gz

/*
  eXosip - This is the eXtended osip library.
  Copyright (C) 2002,2003,2004,2005,2006,2007  Aymeric MOIZARD  - [e-mail]
  
  eXosip is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.
  
  eXosip is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.
  
  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#ifdef ENABLE_MPATROL
#include <mpatrol.h>
#endif

#include "eXosip2.h"
#include <eXosip2/eXosip.h>

#include <osip2/osip_mt.h>
#include <osip2/osip_condv.h>

extern eXosip_t eXosip;

int ipv6_enable = 0;

#ifdef OSIP_MT
static void *_eXosip_thread (void *arg);
#endif
static void _eXosip_keep_alive (void);

#ifndef MINISIZE

void
eXosip_enable_ipv6 (int _ipv6_enable)
{
  ipv6_enable = _ipv6_enable;
}

#endif

const char *
eXosip_get_version(void)
{
  return EXOSIP_VERSION;
}

void
eXosip_masquerade_contact (const char *public_address, int port)
{
  eXtl_udp.tl_masquerade_contact(public_address, port);
  eXtl_tcp.tl_masquerade_contact(public_address, port);
#ifdef HAVE_OPENSSL_SSL_H
  eXtl_tls.tl_masquerade_contact(public_address, port);
  eXtl_dtls.tl_masquerade_contact(public_address, port);
#endif
  return;
}

int
eXosip_guess_localip (int family, char *address, int size)
{
  return eXosip_guess_ip_for_via (family, address, size);
}

int
eXosip_is_public_address (const char *c_address)
{
  return (0 != strncmp (c_address, "192.168", 7)
          && 0 != strncmp (c_address, "10.", 3)
          && 0 != strncmp (c_address, "172.16.", 7)
          && 0 != strncmp (c_address, "172.17.", 7)
          && 0 != strncmp (c_address, "172.18.", 7)
          && 0 != strncmp (c_address, "172.19.", 7)
          && 0 != strncmp (c_address, "172.20.", 7)
          && 0 != strncmp (c_address, "172.21.", 7)
          && 0 != strncmp (c_address, "172.22.", 7)
          && 0 != strncmp (c_address, "172.23.", 7)
          && 0 != strncmp (c_address, "172.24.", 7)
          && 0 != strncmp (c_address, "172.25.", 7)
          && 0 != strncmp (c_address, "172.26.", 7)
          && 0 != strncmp (c_address, "172.27.", 7)
          && 0 != strncmp (c_address, "172.28.", 7)
          && 0 != strncmp (c_address, "172.29.", 7)
          && 0 != strncmp (c_address, "172.30.", 7)
          && 0 != strncmp (c_address, "172.31.", 7)
          && 0 != strncmp (c_address, "169.254", 7));
}

void
eXosip_set_user_agent (const char *user_agent)
{
  osip_free (eXosip.user_agent);
  eXosip.user_agent = osip_strdup (user_agent);
}

void
eXosip_kill_transaction (osip_list_t * transactions)
{
  osip_transaction_t *transaction;

  if (!osip_list_eol (transactions, 0))
    {
      /* some transaction are still used by osip,
         transaction should be released by modules! */
      OSIP_TRACE (osip_trace
                  (__FILE__, __LINE__, OSIP_ERROR, NULL,
                   "module sfp: _osip_kill_transaction transaction should be released by modules!\n"));
    }

  while (!osip_list_eol (transactions, 0))
    {
      transaction = osip_list_get (transactions, 0);

      __eXosip_delete_jinfo (transaction);
      osip_transaction_free (transaction);
    }
}

void
eXosip_quit (void)
{
  jauthinfo_t *jauthinfo;
  eXosip_call_t *jc;
  eXosip_reg_t *jreg;
#ifndef MINISIZE
  eXosip_notify_t *jn;
  eXosip_subscribe_t *js;
  eXosip_pub_t *jpub;
#endif
#ifdef OSIP_MT
  int i;
#endif

  if (eXosip.j_stop_ua==-1)
  {
		OSIP_TRACE (osip_trace
					(__FILE__, __LINE__, OSIP_WARNING, NULL,
					"eXosip: already stopped!\n"));
	  return;
  }

  eXosip.j_stop_ua = 1;         /* ask to quit the application */
  __eXosip_wakeup ();
  __eXosip_wakeup_event ();

#ifdef OSIP_MT
  if (eXosip.j_thread!=NULL)
  {
    i = osip_thread_join ((struct osip_thread *) eXosip.j_thread);
    if (i != 0)
        {
        OSIP_TRACE (osip_trace
                    (__FILE__, __LINE__, OSIP_ERROR, NULL,
                    "eXosip: can't terminate thread!\n"));
        }
    osip_free ((struct osip_thread *) eXosip.j_thread);
  }

  jpipe_close (eXosip.j_socketctl);
  jpipe_close (eXosip.j_socketctl_event);
#endif

  osip_free (eXosip.user_agent);

  for (jc = eXosip.j_calls; jc != NULL; jc = eXosip.j_calls)
    {
      REMOVE_ELEMENT (eXosip.j_calls, jc);
      eXosip_call_free (jc);
    }

#ifndef MINISIZE
  for (js = eXosip.j_subscribes; js != NULL; js = eXosip.j_subscribes)
    {
      REMOVE_ELEMENT (eXosip.j_subscribes, js);
      eXosip_subscribe_free (js);
    }

  for (jn = eXosip.j_notifies; jn != NULL; jn = eXosip.j_notifies)
    {
      REMOVE_ELEMENT (eXosip.j_notifies, jn);
      eXosip_notify_free (jn);
    }
#endif

#ifdef OSIP_MT
  osip_mutex_destroy ((struct osip_mutex *) eXosip.j_mutexlock);
#if !defined (_WIN32_WCE)
  osip_cond_destroy ((struct osip_cond *) eXosip.j_cond);
#endif
#endif

  for (jreg = eXosip.j_reg; jreg != NULL; jreg = eXosip.j_reg)
    {
      REMOVE_ELEMENT (eXosip.j_reg, jreg);
      eXosip_reg_free (jreg);
    }

#ifndef MINISIZE
  for (jpub = eXosip.j_pub; jpub != NULL; jpub = eXosip.j_pub)
    {
      REMOVE_ELEMENT (eXosip.j_pub, jpub);
      _eXosip_pub_free (jpub);
    }
#endif

  while (!osip_list_eol (eXosip.j_transactions, 0))
    {
      osip_transaction_t *tr =
        (osip_transaction_t *) osip_list_get (eXosip.j_transactions, 0);
      if (tr->state == IST_TERMINATED || tr->state == ICT_TERMINATED
          || tr->state == NICT_TERMINATED || tr->state == NIST_TERMINATED)
        {
          OSIP_TRACE (osip_trace (__FILE__, __LINE__, OSIP_INFO1, NULL,
                                  "Release a terminated transaction\n"));
          osip_list_remove (eXosip.j_transactions, 0);
          __eXosip_delete_jinfo (tr);
          osip_transaction_free (tr);
      } else
        {
          osip_list_remove (eXosip.j_transactions, 0);
          __eXosip_delete_jinfo (tr);
          osip_transaction_free (tr);
        }
    }

  osip_free (eXosip.j_transactions);

  eXosip_kill_transaction (&eXosip.j_osip->osip_ict_transactions);
  eXosip_kill_transaction (&eXosip.j_osip->osip_nict_transactions);
  eXosip_kill_transaction (&eXosip.j_osip->osip_ist_transactions);
  eXosip_kill_transaction (&eXosip.j_osip->osip_nist_transactions);
  osip_release (eXosip.j_osip);

  {
    eXosip_event_t *ev;

    for (ev = osip_fifo_tryget (eXosip.j_events); ev != NULL;
         ev = osip_fifo_tryget (eXosip.j_events))
      eXosip_event_free (ev);
  }

  osip_fifo_free (eXosip.j_events);

  for (jauthinfo = eXosip.authinfos; jauthinfo != NULL;
       jauthinfo = eXosip.authinfos)
    {
      REMOVE_ELEMENT (eXosip.authinfos, jauthinfo);
      osip_free (jauthinfo);
    }

  eXtl_udp.tl_free();
  eXtl_tcp.tl_free();
#ifdef HAVE_OPENSSL_SSL_H
  eXtl_dtls.tl_free();
  eXtl_tls.tl_free();
#endif

  memset (&eXosip, 0, sizeof (eXosip));
  eXosip.j_stop_ua = -1;
  return;
}

int
eXosip_set_socket (int transport, int socket, int port)
{
  eXosip.eXtl = NULL;
  if (transport==IPPROTO_UDP)
    {
      eXtl_udp.proto_port = port;
      eXtl_udp.tl_set_socket(socket);
      eXosip.eXtl = &eXtl_udp;
      snprintf(eXosip.transport, sizeof(eXosip.transport), "%s", "UDP");
    }
  else if (transport==IPPROTO_UDP)
    {
      eXtl_tcp.proto_port = port;
      eXtl_tcp.tl_set_socket(socket); 
      eXosip.eXtl = &eXtl_tcp;
      snprintf(eXosip.transport, sizeof(eXosip.transport), "%s", "TCP");
   }
  else
    return -1;

#ifdef OSIP_MT
  eXosip.j_thread = (void *) osip_thread_create (20000, _eXosip_thread, NULL);
  if (eXosip.j_thread == NULL)
    {
      OSIP_TRACE (osip_trace
                  (__FILE__, __LINE__, OSIP_ERROR, NULL,
                   "eXosip: Cannot start thread!\n"));
      return -1;
    }
#endif
  return 0;
}

#ifdef IPV6_V6ONLY
int
setsockopt_ipv6only (int sock)
{
  int on = 1;

  return setsockopt (sock, IPPROTO_IPV6, IPV6_V6ONLY, (char *) &on, sizeof (on));
}
#endif /* IPV6_V6ONLY */

#ifndef MINISIZE
int eXosip_find_free_port(int free_port, int transport)
{
  int res1;
  int res2;
  struct addrinfo *addrinfo_rtp = NULL;
  struct addrinfo *curinfo_rtp;
  struct addrinfo *addrinfo_rtcp = NULL;
  struct addrinfo *curinfo_rtcp;
  int sock;
  int count;

  for (count=0;count<8;count++)
  {
	  res1 = eXosip_get_addrinfo (&addrinfo_rtp, "0.0.0.0", free_port + count*2, transport);
	  if (res1)
		return -1;
	  res2 = eXosip_get_addrinfo (&addrinfo_rtcp, "0.0.0.0", free_port + count*2+ 1, transport);
	  if (res2)
	  {
		  eXosip_freeaddrinfo (addrinfo_rtp);
		  return -1;
	  }

	  sock=-1;
	  for (curinfo_rtp = addrinfo_rtp; curinfo_rtp; curinfo_rtp = curinfo_rtp->ai_next)
		{
		  if (curinfo_rtp->ai_protocol && curinfo_rtp->ai_protocol != transport)
			{
			  OSIP_TRACE (osip_trace
						  (__FILE__, __LINE__, OSIP_INFO3, NULL,
						   "eXosip: Skipping protocol %d\n", curinfo_rtp->ai_protocol));
			  continue;
			}

		  sock = (int) socket (curinfo_rtp->ai_family, curinfo_rtp->ai_socktype,
							   curinfo_rtp->ai_protocol);
		  if (sock < 0)
			{
			  OSIP_TRACE (osip_trace
						  (__FILE__, __LINE__, OSIP_ERROR, NULL,
						   "eXosip: Cannot create socket!\n"));
			  continue;
			}

		  if (curinfo_rtp->ai_family == AF_INET6)
			{
#ifdef IPV6_V6ONLY
			  if (setsockopt_ipv6only (sock))
				{
				  close (sock);
				  sock = -1;
				  OSIP_TRACE (osip_trace
							  (__FILE__, __LINE__, OSIP_ERROR, NULL,
							   "eXosip: Cannot set socket option!\n"));
				  continue;
				}
#endif /* IPV6_V6ONLY */
			}

		  res1 = bind (sock, curinfo_rtp->ai_addr, curinfo_rtp->ai_addrlen);
		  if (res1 < 0)
			{
			  OSIP_TRACE (osip_trace
						  (__FILE__, __LINE__, OSIP_WARNING, NULL,
						  "eXosip: Cannot bind socket node: 0.0.0.0 family:%d\n",
						   curinfo_rtp->ai_family));
			  close (sock);
			  sock = -1;
			  continue;
			}
		  break;
	  }

	  eXosip_freeaddrinfo (addrinfo_rtp);

	  if (sock==-1)
	  {
		  eXosip_freeaddrinfo (addrinfo_rtcp);
		  continue;
	  }

	  close(sock);
	  sock=-1;
	  for (curinfo_rtcp = addrinfo_rtcp; curinfo_rtcp; curinfo_rtcp = curinfo_rtcp->ai_next)
		{
		  if (curinfo_rtcp->ai_protocol && curinfo_rtcp->ai_protocol != transport)
			{
			  OSIP_TRACE (osip_trace
						  (__FILE__, __LINE__, OSIP_INFO3, NULL,
						   "eXosip: Skipping protocol %d\n", curinfo_rtcp->ai_protocol));
			  continue;
			}

		  sock = (int) socket (curinfo_rtcp->ai_family, curinfo_rtcp->ai_socktype,
							   curinfo_rtcp->ai_protocol);
		  if (sock < 0)
			{
			  OSIP_TRACE (osip_trace
						  (__FILE__, __LINE__, OSIP_ERROR, NULL,
						   "eXosip: Cannot create socket!\n"));
			  continue;
			}

		  if (curinfo_rtcp->ai_family == AF_INET6)
			{
#ifdef IPV6_V6ONLY
			  if (setsockopt_ipv6only (sock))
				{
				  close (sock);
				  sock = -1;
				  OSIP_TRACE (osip_trace
							  (__FILE__, __LINE__, OSIP_ERROR, NULL,
							   "eXosip: Cannot set socket option!\n"));
				  continue;
				}
#endif /* IPV6_V6ONLY */
			}

		  res1 = bind (sock, curinfo_rtcp->ai_addr, curinfo_rtcp->ai_addrlen);
		  if (res1 < 0)
			{
			  OSIP_TRACE (osip_trace
						  (__FILE__, __LINE__, OSIP_WARNING, NULL,
						  "eXosip: Cannot bind socket node: 0.0.0.0 family:%d\n",
						   curinfo_rtp->ai_family));
			  close (sock);
			  sock = -1;
			  continue;
			}
		  break;
	  }

	  eXosip_freeaddrinfo (addrinfo_rtcp);

	  /* the pair must be free */
	  if (sock==-1)
		  continue;

	  close(sock);
	  sock=-1;
	  return free_port + count*2;
  }

  /* just get a free port */
  res1 = eXosip_get_addrinfo (&addrinfo_rtp, "0.0.0.0", 0, transport);
  if (res1)
	return -1;

  sock=-1;
  for (curinfo_rtp = addrinfo_rtp; curinfo_rtp; curinfo_rtp = curinfo_rtp->ai_next)
	{
	  socklen_t len;
	  struct sockaddr_storage ai_addr;

	  if (curinfo_rtp->ai_protocol && curinfo_rtp->ai_protocol != transport)
		{
		  OSIP_TRACE (osip_trace
					  (__FILE__, __LINE__, OSIP_INFO3, NULL,
					   "eXosip: Skipping protocol %d\n", curinfo_rtp->ai_protocol));
		  continue;
		}

	  sock = (int) socket (curinfo_rtp->ai_family, curinfo_rtp->ai_socktype,
						   curinfo_rtp->ai_protocol);
	  if (sock < 0)
		{
		  OSIP_TRACE (osip_trace
					  (__FILE__, __LINE__, OSIP_ERROR, NULL,
					   "eXosip: Cannot create socket!\n"));
		  continue;
		}