exconf.c

最新的libexosip2源码libeXosip2-3.0.3-2

      if (res1 != 0)      
	  {
		  close (sock);
		  sock = -1;
		  continue;
	  }

	  close(sock);
	  sock=-1;
	  eXosip_freeaddrinfo (addrinfo_rtp);

	  if (ipv6_enable == 0)
		return ntohs (((struct sockaddr_in *) &ai_addr)->sin_port);
	  else
		return ntohs (((struct sockaddr_in6 *) &ai_addr)->sin6_port);
  }

  eXosip_freeaddrinfo (addrinfo_rtp);

  if (sock!=-1)
  {
	  close(sock);
	  sock=-1;
  }

  return -1;
}
#endif

int
eXosip_listen_addr (int transport, const char *addr, int port, int family,
                    int secure)
{
  int i=-1;
  struct eXtl_protocol *eXtl=NULL;

  if (eXosip.eXtl!=NULL)
    {
      /* already set */
      OSIP_TRACE (osip_trace
		  (__FILE__, __LINE__, OSIP_ERROR, NULL,
                   "eXosip: already listening somewhere\n"));
      return -1;
    }

  if (transport==IPPROTO_UDP && secure==0)
    eXtl = &eXtl_udp;
  else if (transport==IPPROTO_TCP && secure==0)
    eXtl = &eXtl_tcp;
#ifdef HAVE_OPENSSL_SSL_H
  else if (transport==IPPROTO_UDP)
    eXtl = &eXtl_dtls;
  else if (transport==IPPROTO_TCP)
    eXtl = &eXtl_tls;
#endif

  if (eXtl==NULL)
    return -1;

  eXtl->proto_family=family;
  eXtl->proto_port=port;
  if (addr!=NULL)
    snprintf(eXtl->proto_ifs, sizeof(eXtl->proto_ifs), "%s", addr);

  i = eXtl->tl_open();
  
  if (i!=0)
    return -1;
  
  eXosip.eXtl = eXtl;

  if (transport==IPPROTO_UDP && secure==0)
    snprintf(eXosip.transport, sizeof(eXosip.transport), "%s", "UDP");
  else if (transport==IPPROTO_TCP && secure==0)
    snprintf(eXosip.transport, sizeof(eXosip.transport), "%s", "TCP");
  else if (transport==IPPROTO_UDP)
    snprintf(eXosip.transport, sizeof(eXosip.transport), "%s", "DTLS-UDP");
  else if (transport==IPPROTO_TCP)
    snprintf(eXosip.transport, sizeof(eXosip.transport), "%s", "TLS");

#ifdef OSIP_MT
  if (eXosip.j_thread==NULL)
    {
      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;
}

int
eXosip_init (void)
{
  osip_t *osip;

  memset (&eXosip, 0, sizeof (eXosip));

  snprintf(eXosip.ipv4_for_gateway, 256, "%s", "217.12.3.11");
  snprintf(eXosip.ipv6_for_gateway, 256, "%s", "2001:638:500:101:2e0:81ff:fe24:37c6");
#ifndef MINISIZE
  snprintf(eXosip.event_package, 256, "%s", "dialog");
#endif

#ifdef WIN32
  /* Initializing windows socket library */
  {
    WORD wVersionRequested;
    WSADATA wsaData;
    int i;

    wVersionRequested = MAKEWORD (1, 1);
    i = WSAStartup (wVersionRequested, &wsaData);
    if (i != 0)
      {
        OSIP_TRACE (osip_trace
                    (__FILE__, __LINE__, OSIP_WARNING, NULL,
                     "eXosip: Unable to initialize WINSOCK, reason: %d\n", i));
        /* return -1; It might be already initilized?? */
      }
  }
#endif

  eXosip.user_agent = osip_strdup ("eXosip/" EXOSIP_VERSION);

  eXosip.j_calls = NULL;
  eXosip.j_stop_ua = 0;
#ifdef OSIP_MT
  eXosip.j_thread = NULL;
#endif
  eXosip.j_transactions = (osip_list_t *) osip_malloc (sizeof (osip_list_t));
  osip_list_init (eXosip.j_transactions);
  eXosip.j_reg = NULL;

#ifdef OSIP_MT
#if !defined (_WIN32_WCE)
  eXosip.j_cond = (struct osip_cond *) osip_cond_init ();
#endif

  eXosip.j_mutexlock = (struct osip_mutex *) osip_mutex_init ();
#endif

  if (-1 == osip_init (&osip))
    {
      OSIP_TRACE (osip_trace
                  (__FILE__, __LINE__, OSIP_ERROR, NULL,
                   "eXosip: Cannot initialize osip!\n"));
      return -1;
    }

  osip_set_application_context (osip, &eXosip);

  eXosip_set_callbacks (osip);

  eXosip.j_osip = osip;

#ifdef OSIP_MT
  /* open a TCP socket to wake up the application when needed. */
  eXosip.j_socketctl = jpipe ();
  if (eXosip.j_socketctl == NULL)
    return -2;

  eXosip.j_socketctl_event = jpipe ();
  if (eXosip.j_socketctl_event == NULL)
    return -3;
#endif

  /* To be changed in osip! */
  eXosip.j_events = (osip_fifo_t *) osip_malloc (sizeof (osip_fifo_t));
  osip_fifo_init (eXosip.j_events);

  eXosip.use_rport = 1;

  eXosip.keep_alive = 32000;

  eXtl_udp.tl_init();
  eXtl_tcp.tl_init();
#ifdef HAVE_OPENSSL_SSL_H
  eXtl_dtls.tl_init();
  eXtl_tls.tl_init();
#endif
  return 0;
}


int
eXosip_execute (void)
{
  struct timeval lower_tv;
  int i;

#ifdef OSIP_MT
  osip_timers_gettimeout (eXosip.j_osip, &lower_tv);
  if (lower_tv.tv_sec > 15)
    {
      lower_tv.tv_sec = 15;
      OSIP_TRACE (osip_trace
                  (__FILE__, __LINE__, OSIP_INFO2, NULL,
                   "eXosip: Reseting timer to 15s before waking up!\n"));
  } else
    {
      /*  add a small amount of time on windows to avoid
         waking up too early. (probably a bad time precision) */
      if (lower_tv.tv_usec < 900000)
        lower_tv.tv_usec = 100000;      /* add 10ms */
      else
        {
          lower_tv.tv_usec = 10000;     /* add 10ms */
          lower_tv.tv_sec++;
        }
      OSIP_TRACE (osip_trace
                  (__FILE__, __LINE__, OSIP_INFO2, NULL,
                   "eXosip: timer sec:%i usec:%i!\n",
                   lower_tv.tv_sec, lower_tv.tv_usec));
    }
#else
  lower_tv.tv_sec = 0;
  lower_tv.tv_usec = 0;
#endif
  i = eXosip_read_message (1, lower_tv.tv_sec, lower_tv.tv_usec);

  if (i == -2)
    {
      return -2;
    }

  eXosip_lock ();
  osip_timers_ict_execute (eXosip.j_osip);
  osip_timers_nict_execute (eXosip.j_osip);
  osip_timers_ist_execute (eXosip.j_osip);
  osip_timers_nist_execute (eXosip.j_osip);

  osip_ict_execute (eXosip.j_osip);
  osip_nict_execute (eXosip.j_osip);
  osip_ist_execute (eXosip.j_osip);
  osip_nist_execute (eXosip.j_osip);

  /* free all Calls that are in the TERMINATED STATE? */
  eXosip_release_terminated_calls ();
  eXosip_release_terminated_registrations ();
#ifndef MINISIZE
  eXosip_release_unused_transactions();
#endif

  eXosip_unlock ();


  if (eXosip.keep_alive > 0)
    {
      _eXosip_keep_alive ();
    }

  return 0;
}

int
eXosip_set_option (eXosip_option opt, const void *value)
{
  int val;
  char *tmp;

  switch (opt)
    {
      case EXOSIP_OPT_ADD_ACCOUNT_INFO:
		  {
			  struct eXosip_account_info *ainfo;
			  int i;
			  ainfo = (struct eXosip_account_info*) value;
			  if (ainfo==NULL || ainfo->proxy[0]=='\0')
			  {
				  return -1;
			  }
			  for (i=0;i<MAX_EXOSIP_ACCOUNT_INFO;i++)
			  {
				  if (eXosip.account_entries[i].proxy[0]!='\0'
					  &&0==osip_strcasecmp(eXosip.account_entries[i].proxy, ainfo->proxy))
				  {
					  /* update ainfo */
					  if (ainfo->nat_ip[0]!='\0')
					  {
						  snprintf(eXosip.account_entries[i].nat_ip, sizeof(eXosip.account_entries[i].nat_ip), "%s", ainfo->nat_ip);
						  eXosip.account_entries[i].nat_port = ainfo->nat_port;
						  OSIP_TRACE (osip_trace
										(__FILE__, __LINE__, OSIP_INFO1, NULL,
										"eXosip option set: account info updated:%s -> %s:%i\n",
										ainfo->proxy, ainfo->nat_ip, ainfo->nat_port));
					  }
					  else
					  {
						  eXosip.account_entries[i].proxy[0]='\0';
						  OSIP_TRACE (osip_trace
										(__FILE__, __LINE__, OSIP_INFO2, NULL,
										 "eXosip option set: account info deleted :%s\n", ainfo->proxy));
					  }
					  return 0;
				  }
			  }
			  if (ainfo->nat_ip[0]=='\0')
			  {
				  return -1;
			  }
			  /* not found case: */
			  for (i=0;i<MAX_EXOSIP_ACCOUNT_INFO;i++)
			  {
				  if (eXosip.account_entries[i].proxy[0]=='\0')
				  {
					  /* add ainfo */
					  snprintf(eXosip.account_entries[i].proxy, sizeof(ainfo->proxy), "%s", ainfo->proxy);
					  snprintf(eXosip.account_entries[i].nat_ip, sizeof(ainfo->nat_ip), "%s", ainfo->nat_ip);
					  eXosip.account_entries[i].nat_port = ainfo->nat_port;
						  OSIP_TRACE (osip_trace
										(__FILE__, __LINE__, OSIP_INFO1, NULL,
										"eXosip option set: account info added:%s -> %s:%i\n",
										ainfo->proxy, ainfo->nat_ip, ainfo->nat_port));
					  return 0;
				  }
			  }
			  return -1;
		  }
        break;
	  case EXOSIP_OPT_ADD_DNS_CACHE:
		  {
			  struct eXosip_dns_cache *entry;
			  int i;
			  entry = (struct eXosip_dns_cache*) value;
			  if (entry==NULL || entry->host[0]=='\0')
			  {
				  return -1;
			  }
			  for (i=0;i<MAX_EXOSIP_DNS_ENTRY;i++)
			  {
				  if (eXosip.dns_entries[i].host[0]!='\0'
					  &&0==osip_strcasecmp(eXosip.dns_entries[i].host, entry->host))
				  {
					  /* update entry */
					  if (entry->ip[0]!='\0')
					  {
						  snprintf(eXosip.dns_entries[i].ip, sizeof(eXosip.dns_entries[i].ip), "%s", entry->ip);
						  OSIP_TRACE (osip_trace
										(__FILE__, __LINE__, OSIP_INFO1, NULL,
										 "eXosip option set: dns cache updated:%s -> %s\n", entry->host, entry->ip));
					  }
					  else
					  {
						  eXosip.dns_entries[i].host[0]='\0';
						  OSIP_TRACE (osip_trace
										(__FILE__, __LINE__, OSIP_INFO2, NULL,
										 "eXosip option set: dns cache deleted :%s\n", entry->host));
					  }
					  return 0;
				  }
			  }
			  if (entry->ip[0]=='\0')
			  {
				  return -1;
			  }
			  /* not found case: */
			  for (i=0;i<MAX_EXOSIP_DNS_ENTRY;i++)
			  {
				  if (eXosip.dns_entries[i].host[0]=='\0')
				  {
					  /* add entry */
					  snprintf(eXosip.dns_entries[i].host, sizeof(entry->host), "%s", entry->host);
					  snprintf(eXosip.dns_entries[i].ip, sizeof(entry->ip), "%s", entry->ip);
					  OSIP_TRACE (osip_trace
									(__FILE__, __LINE__, OSIP_INFO2, NULL,
									 "eXosip option set: dns cache added:%s -> %s\n", entry->host, entry->ip));
					  return 0;
				  }
			  }
			  return -1;
		  }
        break;
      case EXOSIP_OPT_UDP_KEEP_ALIVE:
        val = *((int *) value);
        eXosip.keep_alive = val;        /* value in ms */
        break;
      case EXOSIP_OPT_UDP_LEARN_PORT:
        val = *((int *) value);
        eXosip.learn_port = val;        /* 1 to learn port */
        break;
#ifndef MINISIZE
      case EXOSIP_OPT_SET_HTTP_TUNNEL_PORT:
        val = *((int *) value);
        eXosip.http_port = val; /* value in ms */
        OSIP_TRACE (osip_trace
                    (__FILE__, __LINE__, OSIP_INFO1, NULL,
                     "eXosip option set: http_port:%i!\n", eXosip.http_port));
        break;
      case EXOSIP_OPT_SET_HTTP_TUNNEL_PROXY:
        tmp = (char *) value;
        memset (eXosip.http_proxy, '\0', sizeof (eXosip.http_proxy));
        if (tmp != NULL && tmp[0] != '\0')
          strncpy (eXosip.http_proxy, tmp, sizeof (eXosip.http_proxy)); /* value in proxy:port */
        OSIP_TRACE (osip_trace
                    (__FILE__, __LINE__, OSIP_INFO1, NULL,
                     "eXosip option set: http_proxy:%s!\n", eXosip.http_proxy));
        break;
      case EXOSIP_OPT_SET_HTTP_OUTBOUND_PROXY:
        tmp = (char *) value;
        memset (eXosip.http_outbound_proxy, '\0',
                sizeof (eXosip.http_outbound_proxy));
        if (tmp != NULL && tmp[0] != '\0')
          strncpy (eXosip.http_outbound_proxy, tmp, sizeof (eXosip.http_outbound_proxy));       /* value in proxy:port */
        OSIP_TRACE (osip_trace
                    (__FILE__, __LINE__, OSIP_INFO1, NULL,
                     "eXosip option set: http_outbound_proxy:%s!\n",
                     eXosip.http_outbound_proxy));
        break;

      case EXOSIP_OPT_DONT_SEND_101:
        val = *((int *) value);
        eXosip.dontsend_101 = val;        /* 0 to disable */
        break;
#endif

      case EXOSIP_OPT_USE_RPORT:
        val = *((int *) value);
        eXosip.use_rport = val;       /* 0 to disable (for broken NAT only?) */
        break;

      case EXOSIP_OPT_SET_IPV4_FOR_GATEWAY:
        tmp = (char *) value;
        memset (eXosip.ipv4_for_gateway, '\0',
                sizeof (eXosip.ipv4_for_gateway));
        if (tmp != NULL && tmp[0] != '\0')
          strncpy (eXosip.ipv4_for_gateway, tmp, sizeof (eXosip.ipv4_for_gateway));
        OSIP_TRACE (osip_trace
                    (__FILE__, __LINE__, OSIP_INFO1, NULL,
                     "eXosip option set: ipv4_for_gateway:%s!\n",
                     eXosip.ipv4_for_gateway));
        break;
#ifndef MINISIZE
      case EXOSIP_OPT_SET_IPV6_FOR_GATEWAY:
        tmp = (char *) value;
        memset (eXosip.ipv6_for_gateway, '\0',
                sizeof (eXosip.ipv6_for_gateway));
        if (tmp != NULL && tmp[0] != '\0')
          strncpy (eXosip.ipv6_for_gateway, tmp, sizeof (eXosip.ipv6_for_gateway));
        OSIP_TRACE (osip_trace
                    (__FILE__, __LINE__, OSIP_INFO1, NULL,
                     "eXosip option set: ipv6_for_gateway:%s!\n",
                     eXosip.ipv6_for_gateway));
        break;
      case EXOSIP_OPT_EVENT_PACKAGE:
        tmp = (char *) value;
        memset (eXosip.event_package, '\0',
                sizeof (eXosip.event_package));
        if (tmp != NULL && tmp[0] != '\0')
          strncpy (eXosip.event_package, tmp, sizeof (eXosip.event_package));
        OSIP_TRACE (osip_trace
                    (__FILE__, __LINE__, OSIP_INFO1, NULL,
                     "eXosip option set: event_package:%s!\n",
                     eXosip.event_package));
        break;
#endif

    default:
      return -1;
    }
  return 0;
}

static void
_eXosip_keep_alive (void)
{
  static struct timeval mtimer = { 0, 0 };

  struct timeval now;

  osip_gettimeofday (&now, NULL);

  if (mtimer.tv_sec == 0 && mtimer.tv_usec == 0)
    {
      /* first init */
      osip_gettimeofday (&mtimer, NULL);
      add_gettimeofday (&mtimer, eXosip.keep_alive);
    }

  if (osip_timercmp (&now, &mtimer, <))
    {
      return;                   /* not yet time */
    }

  /* reset timer */
  osip_gettimeofday (&mtimer, NULL);
  add_gettimeofday (&mtimer, eXosip.keep_alive);

  eXtl_udp.tl_keepalive();
}

#ifdef OSIP_MT
void *
_eXosip_thread (void *arg)
{
  int i;

  while (eXosip.j_stop_ua == 0)
    {
      i = eXosip_execute ();
      if (i == -2)
        osip_thread_exit ();
    }
  osip_thread_exit ();
  return NULL;
}

#endif