示例#1
0
文件: if.c 项目: yubo/quagga
struct interface *if_get_by_name_len(const char *name, size_t namelen)
{
	struct interface *ifp;

	return ((ifp = if_lookup_by_name_len(name, namelen)) != NULL) ? ifp :
	    if_create(name, namelen);
}
示例#2
0
文件: if.c 项目: yubo/quagga
/* Get interface by name if given name interface doesn't exist create
   one. */
struct interface *if_get_by_name(const char *name)
{
	struct interface *ifp;

	return ((ifp = if_lookup_by_name(name)) != NULL) ? ifp :
	    if_create(name, strlen(name));
}
示例#3
0
struct interface_FOO *
zebra_interface_add_read (struct stream *s)
{
  struct interface_FOO *ifp;
  char ifname_tmp[INTERFACE_NAMSIZ];

  /* Read interface name. */
  stream_get (ifname_tmp, s, INTERFACE_NAMSIZ);

  /* Lookup this by interface name. */
  ifp = if_lookup_by_name (ifname_tmp);

  /* If such interface does not exist, make new one. */
  if (! ifp)
    ifp = if_create (ifname_tmp, INTERFACE_NAMSIZ);

  /* Read interface's index. */
  ifp->ifindex = stream_getl (s);

  /* Read interface's value. */
  ifp->status = stream_getc (s);
  ifp->flags = stream_getl (s);
  ifp->metric = stream_getl (s);
  ifp->mtu = stream_getl (s);
  ifp->mtu6 = stream_getl (s);
  ifp->bandwidth = stream_getl (s);
#ifdef HAVE_SOCKADDR_DL
  stream_get (&ifp->sdl, s, sizeof (ifp->sdl));
#else
  ifp->hw_addr_len = stream_getl (s);
  if (ifp->hw_addr_len)
    stream_get (ifp->hw_addr, s, ifp->hw_addr_len);
#endif /* HAVE_SOCKADDR_DL */
  
  return ifp;
}
示例#4
0
/* Interface adding function called from interface_list. */
int
ifm_read (struct if_msghdr *ifm)
{
  struct interface *ifp;
  struct sockaddr_dl *sdl = NULL;

  sdl = (struct sockaddr_dl *)(ifm + 1);

  /* Use sdl index. */
  ifp = if_lookup_by_index (ifm->ifm_index);

  if (ifp == NULL)
    {
      /* Check interface's address.*/
      if (! (ifm->ifm_addrs & RTA_IFP))
	{
	  zlog_warn ("There must be RTA_IFP address for ifindex %d\n",
		     ifm->ifm_index);
	  return -1;
	}

      ifp = if_create ();

      strncpy (ifp->name, sdl->sdl_data, sdl->sdl_nlen);
      ifp->ifindex = ifm->ifm_index;
      ifp->flags = ifm->ifm_flags;
#if defined(__bsdi__)
      if_kvm_get_mtu (ifp);
#else
      if_get_mtu (ifp);
#endif /* __bsdi__ */
      if_get_metric (ifp);

      /* Fetch hardware address. */
      if (sdl->sdl_family != AF_LINK)
	{
	  zlog_warn ("sockaddr_dl->sdl_family is not AF_LINK");
	  return -1;
	}
      memcpy (&ifp->sdl, sdl, sizeof (struct sockaddr_dl));

      if_add_update (ifp);
    }
  else
    {
      /* There is a case of promisc, allmulti flag modification. */
      if (if_is_up (ifp))
	{
	  ifp->flags = ifm->ifm_flags;
	  if (! if_is_up (ifp))
	    if_down (ifp);
	}
      else
	{
	  ifp->flags = ifm->ifm_flags;
	  if (if_is_up (ifp))
	    if_up (ifp);
	}
    }
  
#ifdef HAVE_NET_RT_IFLIST
  ifp->stats = ifm->ifm_data;
#endif /* HAVE_NET_RT_IFLIST */

  if (IS_ZEBRA_DEBUG_KERNEL)
    zlog_info ("interface %s index %d", ifp->name, ifp->ifindex);

  return 0;
}
示例#5
0
/*
 * Handle struct if_msghdr obtained from reading routing socket or
 * sysctl (from interface_list).  There may or may not be sockaddrs
 * present after the header.
 */
int
ifm_read (struct if_msghdr *ifm)
{
  struct interface *ifp = NULL;
  char ifname[IFNAMSIZ];
  short ifnlen = 0;
  caddr_t *cp;
  
  /* terminate ifname at head (for strnlen) and tail (for safety) */
  ifname[IFNAMSIZ - 1] = '\0';
  
  /* paranoia: sanity check structure */
  if (ifm->ifm_msglen < sizeof(struct if_msghdr))
    {
      zlog_err ("ifm_read: ifm->ifm_msglen %d too short\n",
		ifm->ifm_msglen);
      return -1;
    }

  /*
   * Check for a sockaddr_dl following the message.  First, point to
   * where a socakddr might be if one follows the message.
   */
  cp = (void *)(ifm + 1);

#ifdef SUNOS_5
  /* 
   * XXX This behavior should be narrowed to only the kernel versions
   * for which the structures returned do not match the headers.
   *
   * if_msghdr_t on 64 bit kernels in Solaris 9 and earlier versions
   * is 12 bytes larger than the 32 bit version.
   */
  if (((struct sockaddr *) cp)->sa_family == AF_UNSPEC)
  	cp = cp + 12;
#endif

  RTA_ADDR_GET (NULL, RTA_DST, ifm->ifm_addrs, cp);
  RTA_ADDR_GET (NULL, RTA_GATEWAY, ifm->ifm_addrs, cp);
  RTA_ATTR_GET (NULL, RTA_NETMASK, ifm->ifm_addrs, cp);
  RTA_ADDR_GET (NULL, RTA_GENMASK, ifm->ifm_addrs, cp);
  RTA_NAME_GET (ifname, RTA_IFP, ifm->ifm_addrs, cp, ifnlen);
  RTA_ADDR_GET (NULL, RTA_IFA, ifm->ifm_addrs, cp);
  RTA_ADDR_GET (NULL, RTA_AUTHOR, ifm->ifm_addrs, cp);
  RTA_ADDR_GET (NULL, RTA_BRD, ifm->ifm_addrs, cp);
  
  if (IS_ZEBRA_DEBUG_KERNEL)
    zlog_debug ("%s: sdl ifname %s", __func__, (ifnlen ? ifname : "(nil)"));
  
  /* 
   * Look up on ifindex first, because ifindices are the primary handle for
   * interfaces across the user/kernel boundary, for most systems.  (Some
   * messages, such as up/down status changes on NetBSD, do not include a
   * sockaddr_dl).
   */
  if ( (ifp = if_lookup_by_index (ifm->ifm_index)) != NULL )
    {
      /* we have an ifp, verify that the name matches as some systems,
       * eg Solaris, have a 1:many association of ifindex:ifname
       * if they dont match, we dont have the correct ifp and should
       * set it back to NULL to let next check do lookup by name
       */
      if (ifnlen && (strncmp (ifp->name, ifname, IFNAMSIZ) != 0) )
        {
          if (IS_ZEBRA_DEBUG_KERNEL)
            zlog_debug ("%s: ifp name %s doesnt match sdl name %s",
                        __func__, ifp->name, ifname);
          ifp = NULL;
        }
    }
  
  /* 
   * If we dont have an ifp, try looking up by name.  Particularly as some
   * systems (Solaris) have a 1:many mapping of ifindex:ifname - the ifname
   * is therefore our unique handle to that interface.
   *
   * Interfaces specified in the configuration file for which the ifindex
   * has not been determined will have ifindex == IFINDEX_INTERNAL, and such
   * interfaces are found by this search, and then their ifindex values can
   * be filled in.
   */
  if ( (ifp == NULL) && ifnlen)
    ifp = if_lookup_by_name (ifname);

  /*
   * If ifp still does not exist or has an invalid index (IFINDEX_INTERNAL),
   * create or fill in an interface.
   */
  if ((ifp == NULL) || (ifp->ifindex == IFINDEX_INTERNAL))
    {
      /*
       * To create or fill in an interface, a sockaddr_dl (via
       * RTA_IFP) is required.
       */
      if (!ifnlen)
	{
	  zlog_warn ("Interface index %d (new) missing ifname\n",
		     ifm->ifm_index);
	  return -1;
	}

#ifndef RTM_IFANNOUNCE
      /* Down->Down interface should be ignored here.
       * See further comment below.
       */
      if (!CHECK_FLAG (ifm->ifm_flags, IFF_UP))
        return 0;
#endif /* !RTM_IFANNOUNCE */
      
      if (ifp == NULL)
        {
	  /* Interface that zebra was not previously aware of, so create. */ 
	  ifp = if_create (ifname, ifnlen);
	  if (IS_ZEBRA_DEBUG_KERNEL)
	    zlog_debug ("%s: creating ifp for ifindex %d", 
	                __func__, ifm->ifm_index);
        }

      if (IS_ZEBRA_DEBUG_KERNEL)
        zlog_debug ("%s: updated/created ifp, ifname %s, ifindex %d",
                    __func__, ifp->name, ifp->ifindex);
      /* 
       * Fill in newly created interface structure, or larval
       * structure with ifindex IFINDEX_INTERNAL.
       */
      ifp->ifindex = ifm->ifm_index;
      
#ifdef HAVE_BSD_LINK_DETECT /* translate BSD kernel msg for link-state */
      bsd_linkdetect_translate(ifm);
#endif /* HAVE_BSD_LINK_DETECT */

      if_flags_update (ifp, ifm->ifm_flags);
#if defined(__bsdi__)
      if_kvm_get_mtu (ifp);
#else
      if_get_mtu (ifp);
#endif /* __bsdi__ */
      if_get_metric (ifp);

      if_add_update (ifp);
    }
  else
    /*
     * Interface structure exists.  Adjust stored flags from
     * notification.  If interface has up->down or down->up
     * transition, call state change routines (to adjust routes,
     * notify routing daemons, etc.).  (Other flag changes are stored
     * but apparently do not trigger action.)
     */
    {
      if (ifp->ifindex != ifm->ifm_index)
        {
          zlog_warn ("%s: index mismatch, ifname %s, ifp index %d, "
                     "ifm index %d", 
                     __func__, ifp->name, ifp->ifindex, ifm->ifm_index);
          return -1;
        }
      
#ifdef HAVE_BSD_LINK_DETECT /* translate BSD kernel msg for link-state */
      bsd_linkdetect_translate(ifm);
#endif /* HAVE_BSD_LINK_DETECT */

      /* update flags and handle operative->inoperative transition, if any */
      if_flags_update (ifp, ifm->ifm_flags);
      
#ifndef RTM_IFANNOUNCE
      if (!if_is_up (ifp))
          {
            /* No RTM_IFANNOUNCE on this platform, so we can never
             * distinguish between ~IFF_UP and delete. We must presume
             * it has been deleted.
             * Eg, Solaris will not notify us of unplumb.
             *
             * XXX: Fixme - this should be runtime detected
             * So that a binary compiled on a system with IFANNOUNCE
             * will still behave correctly if run on a platform without
             */
            if_delete_update (ifp);
          }
#endif /* RTM_IFANNOUNCE */
      if (if_is_up (ifp))
      {
#if defined(__bsdi__)
        if_kvm_get_mtu (ifp);
#else
        if_get_mtu (ifp);
#endif /* __bsdi__ */
        if_get_metric (ifp);
      }
    }

#ifdef HAVE_NET_RT_IFLIST
  ifp->stats = ifm->ifm_data;
#endif /* HAVE_NET_RT_IFLIST */

  if (IS_ZEBRA_DEBUG_KERNEL)
    zlog_debug ("%s: interface %s index %d", 
                __func__, ifp->name, ifp->ifindex);

  return 0;
}
示例#6
0
struct ospf_interface * 
ospf_vl_new (struct ospf *ospf, struct ospf_vl_data *vl_data)
{
  struct ospf_interface * voi;
  struct interface * vi;
  char   ifname[INTERFACE_NAMSIZ + 1];
  struct ospf_area *area;
  struct in_addr area_id;
  struct connected *co;
  struct prefix_ipv4 *p;
  
  if (IS_DEBUG_OSPF_EVENT)
    zlog_debug ("ospf_vl_new(): Start");
  if (vlink_count == OSPF_VL_MAX_COUNT)
    {
      if (IS_DEBUG_OSPF_EVENT)
	zlog_debug ("ospf_vl_new(): Alarm: "
		   "cannot create more than OSPF_MAX_VL_COUNT virtual links");
      return NULL;
    }

  if (IS_DEBUG_OSPF_EVENT)
    zlog_debug ("ospf_vl_new(): creating pseudo zebra interface");

  snprintf (ifname, sizeof(ifname), "VLINK%d", vlink_count);
  vi = if_create (ifname, strnlen(ifname, sizeof(ifname)));
  co = connected_new ();
  co->ifp = vi;
  listnode_add (vi->connected, co);

  p = prefix_ipv4_new ();
  p->family = AF_INET;
  p->prefix.s_addr = 0;
  p->prefixlen = 0;
 
  co->address = (struct prefix *)p;
  
  voi = ospf_if_new (ospf, vi, co->address);
  if (voi == NULL)
    {
      if (IS_DEBUG_OSPF_EVENT)
	zlog_debug ("ospf_vl_new(): Alarm: OSPF int structure is not created");
      return NULL;
    }
  voi->connected = co;
  voi->vl_data = vl_data;
  voi->ifp->mtu = OSPF_VL_MTU;
  voi->type = OSPF_IFTYPE_VIRTUALLINK;

  vlink_count++;
  if (IS_DEBUG_OSPF_EVENT)
    zlog_debug ("ospf_vl_new(): Created name: %s", ifname);
  if (IS_DEBUG_OSPF_EVENT)
    zlog_debug ("ospf_vl_new(): set if->name to %s", vi->name);

  area_id.s_addr = 0;
  area = ospf_area_get (ospf, area_id, OSPF_AREA_ID_FORMAT_ADDRESS);
  voi->area = area;

  if (IS_DEBUG_OSPF_EVENT)
    zlog_debug ("ospf_vl_new(): set associated area to the backbone");

  ospf_nbr_add_self (voi);
  ospf_area_add_if (voi->area, voi);

  ospf_if_stream_set (voi);

  if (IS_DEBUG_OSPF_EVENT)
    zlog_debug ("ospf_vl_new(): Stop");
  return voi;
}
示例#7
0
文件: wimax.c 项目: dark-ray/madwimax
int main(int argc, char **argv)
{
	struct sigaction sigact;
  struct sigevent sev;
  struct itimerspec its;
	int r = 1;

	parse_args(argc, argv);

	sigact.sa_handler = sighandler_exit;
	sigemptyset(&sigact.sa_mask);
	sigact.sa_flags = 0;
	sigaction(SIGINT, &sigact, NULL);
	sigaction(SIGTERM, &sigact, NULL);
	sigaction(SIGQUIT, &sigact, NULL);
	sigact.sa_handler = sighandler_wait_child;
	sigaction(SIGCHLD, &sigact, NULL);
  sigact.sa_handler = sighandler_stats;
  sigfillset(&sigact.sa_mask);
  if (stats_period == 0)
    sigaction(SIGUSR1, &sigact, NULL);

	if (logfile != NULL) {
		set_wmlogger(argv[0], WMLOGGER_FILE, logfile);
	} else if (daemonize) {
		set_wmlogger(argv[0], WMLOGGER_SYSLOG, NULL);
	} else {
		set_wmlogger(argv[0], WMLOGGER_FILE, stderr);
	}

	if (daemonize) {
		daemon(0, 0);
	}
	
	if (stats_period != 0) {
    sigemptyset(&sigact.sa_mask);
    sigaction(SIGRTMIN, &sigact, NULL);
    
    // create the POSIX timer 
    sev.sigev_notify = SIGEV_SIGNAL;
    sev.sigev_signo = SIGRTMIN;
    sev.sigev_value.sival_ptr = (void *) &timerid;
    if (timer_create(CLOCK_MONOTONIC, &sev, &timerid) == 0) {
        // start the POSIX timer
        its.it_value.tv_sec = stats_period;
        its.it_value.tv_nsec = 0;
        its.it_interval.tv_sec = its.it_value.tv_sec;
        its.it_interval.tv_nsec = its.it_value.tv_nsec;
        timer_settime(timerid, 0, &its, NULL);
    }
  }

	r = libusb_init(&ctx);
	if (r < 0) {
		wmlog_msg(0, "failed to initialise libusb");
		exit_release_resources(1);
	}
	
	if (pid_fname && !write_pidfile(pid_fname)) {
    wmlog_msg(0, "failed to create pid file %s", pid_fname);
    exit_release_resources(1);
  }

	devh = find_wimax_device();
	if (devh == NULL) {
		wmlog_msg(0, "Could not find/open device");
		exit_release_resources(1);
	}

	wmlog_msg(0, "Device found");

	if (detach_dvd && libusb_kernel_driver_active(devh, IF_DVD) == 1) {
		r = libusb_detach_kernel_driver(devh, IF_DVD);
		if (r < 0) {
			wmlog_msg(0, "kernel driver detach error %d", r);
		} else {
			wmlog_msg(0, "detached pseudo-DVD kernel driver");
		}
	}

	if (libusb_kernel_driver_active(devh, IF_MODEM) == 1) {
		kernel_driver_active = 1;
		r = libusb_detach_kernel_driver(devh, IF_MODEM);
		if (r < 0) {
			wmlog_msg(0, "kernel driver detach error %d", r);
		} else {
			wmlog_msg(0, "detached modem kernel driver");
		}
	}

	r = libusb_claim_interface(devh, IF_MODEM);
	if (r < 0) {
		wmlog_msg(0, "Claim usb interface error %d", r);
		exit_release_resources(1);
	}
	wmlog_msg(0, "Claimed interface");

	alloc_fds();
	libusb_set_pollfd_notifiers(ctx, cb_add_pollfd, cb_remove_pollfd, NULL);

	r = init();
	if (r < 0) {
		wmlog_msg(0, "init error %d", r);
		exit_release_resources(1);
	}

	if_create();
	cb_add_pollfd(tap_fd, POLLIN, NULL);

	r = scan_loop();
	if (r < 0) {
		wmlog_msg(0, "scan_loop error %d", r);
		exit_release_resources(1);
	}

	exit_release_resources(0);
	return 0;
}
示例#8
0
int main(int argc, char **argv)
{
	struct sigaction sigact;
	int r = 1;

	parse_args(argc, argv);

	sigact.sa_handler = sighandler_exit;
	sigemptyset(&sigact.sa_mask);
	sigact.sa_flags = 0;
	sigaction(SIGINT, &sigact, NULL);
	sigaction(SIGTERM, &sigact, NULL);
	sigaction(SIGQUIT, &sigact, NULL);
	sigact.sa_handler = sighandler_wait_child;
	sigaction(SIGCHLD, &sigact, NULL);

	if (logfile != NULL) {
		set_wmlogger(argv[0], WMLOGGER_FILE, logfile);
	} else if (daemonize) {
		set_wmlogger(argv[0], WMLOGGER_SYSLOG, NULL);
	} else {
		set_wmlogger(argv[0], WMLOGGER_FILE, stderr);
	}

	if (daemonize) {
		daemon(0, 0);
	}

	r = libusb_init(&ctx);
	if (r < 0) {
		wmlog_msg(0, "failed to initialise libusb");
		exit_release_resources(1);
	}

	devh = find_wimax_device();
	if (devh == NULL) {
		wmlog_msg(0, "Could not find/open device");
		exit_release_resources(1);
	}

	wmlog_msg(0, "Device found");

	if (detach_dvd && libusb_kernel_driver_active(devh, IF_DVD) == 1) {
		r = libusb_detach_kernel_driver(devh, IF_DVD);
		if (r < 0) {
			wmlog_msg(0, "kernel driver detach error %d", r);
		} else {
			wmlog_msg(0, "detached pseudo-DVD kernel driver");
		}
	}

	if (libusb_kernel_driver_active(devh, IF_MODEM) == 1) {
		kernel_driver_active = 1;
		r = libusb_detach_kernel_driver(devh, IF_MODEM);
		if (r < 0) {
			wmlog_msg(0, "kernel driver detach error %d", r);
		} else {
			wmlog_msg(0, "detached modem kernel driver");
		}
	}

	r = libusb_claim_interface(devh, IF_MODEM);
	if (r < 0) {
		wmlog_msg(0, "Claim usb interface error %d", r);
		exit_release_resources(1);
	}
	wmlog_msg(0, "Claimed interface");

	alloc_fds();
	libusb_set_pollfd_notifiers(ctx, cb_add_pollfd, cb_remove_pollfd, NULL);

	r = init();
	if (r < 0) {
		wmlog_msg(0, "init error %d", r);
		exit_release_resources(1);
	}

	if_create();
	cb_add_pollfd(tap_fd, POLLIN, NULL);

	r = scan_loop();
	if (r < 0) {
		wmlog_msg(0, "scan_loop error %d", r);
		exit_release_resources(1);
	}

	exit_release_resources(0);
	return 0;
}