예제 #1
0
static int pim_zebra_if_add(int command, struct zclient *zclient,
			    zebra_size_t length, vrf_id_t vrf_id)
{
  struct interface *ifp;

  /*
    zebra api adds/dels interfaces using the same call
    interface_add_read below, see comments in lib/zclient.c
  */
  ifp = zebra_interface_add_read(zclient->ibuf, vrf_id);
  if (!ifp)
    return 0;

  if (PIM_DEBUG_ZEBRA) {
    zlog_debug("%s: %s index %d flags %ld metric %d mtu %d operative %d",
	       __PRETTY_FUNCTION__,
	       ifp->name, ifp->ifindex, (long)ifp->flags, ifp->metric,
	       ifp->mtu, if_is_operative(ifp));
  }

  if (if_is_operative(ifp))
    pim_if_addr_add_all(ifp);

  return 0;
}
예제 #2
0
static int pim_zebra_if_del(int command, struct zclient *zclient,
			    zebra_size_t length, vrf_id_t vrf_id)
{
  struct interface *ifp;

  /*
    zebra api adds/dels interfaces using the same call
    interface_add_read below, see comments in lib/zclient.c
    
    comments in lib/zclient.c seem to indicate that calling
    zebra_interface_add_read is the correct call, but that
    results in an attemted out of bounds read which causes
    pimd to assert. Other clients use zebra_interface_state_read
    and it appears to work just fine.
  */
  ifp = zebra_interface_state_read(zclient->ibuf, vrf_id);
  if (!ifp)
    return 0;

  if (PIM_DEBUG_ZEBRA) {
    zlog_debug("%s: %s index %d flags %ld metric %d mtu %d operative %d",
	       __PRETTY_FUNCTION__,
	       ifp->name, ifp->ifindex, (long)ifp->flags, ifp->metric,
	       ifp->mtu, if_is_operative(ifp));
  }

  if (!if_is_operative(ifp))
    pim_if_addr_del_all(ifp);

  return 0;
}
예제 #3
0
static int pim_zebra_if_state_up(int command, struct zclient *zclient,
				 zebra_size_t length, vrf_id_t vrf_id)
{
  struct interface *ifp;

  /*
    zebra api notifies interface up/down events by using the same call
    zebra_interface_state_read below, see comments in lib/zclient.c
  */
  ifp = zebra_interface_state_read(zclient->ibuf, vrf_id);
  if (!ifp)
    return 0;

  if (PIM_DEBUG_ZEBRA) {
    zlog_debug("%s: %s index %d flags %ld metric %d mtu %d operative %d",
	       __PRETTY_FUNCTION__,
	       ifp->name, ifp->ifindex, (long)ifp->flags, ifp->metric,
	       ifp->mtu, if_is_operative(ifp));
  }

  if (if_is_operative(ifp)) {
    /*
      pim_if_addr_add_all() suffices for bringing up both IGMP and PIM
    */
    pim_if_addr_add_all(ifp);
  }

  return 0;
}
/* Multicast packet receive socket. */
static int
rip_multicast_join (struct interface *ifp, int sock)
{
  struct listnode *cnode;
  struct connected *ifc;

  if (if_is_operative (ifp) && if_is_multicast (ifp))
    {
      if (IS_RIP_DEBUG_EVENT)
	zlog_debug ("multicast join at %s", ifp->name);

      for (ALL_LIST_ELEMENTS_RO (ifp->connected, cnode, ifc))
	{
	  struct prefix_ipv4 *p;
	  struct in_addr group;
	      
	  p = (struct prefix_ipv4 *) ifc->address;
      
	  if (p->family != AF_INET)
	    continue;
      
	  group.s_addr = htonl (INADDR_RIP_GROUP);
	  if (ipv4_multicast_join (sock, group, p->prefix, ifp->ifindex) < 0)
	    return -1;
	  else
	    return 0;
	}
    }
  return 0;
}
/* This will be executed when interface goes up. */
static void
rip_request_interface (struct interface *ifp)
{
  struct rip_interface *ri;

  /* In default ripd doesn't send RIP_REQUEST to the loopback interface. */
  if (if_is_loopback (ifp))
    return;

  /* If interface is down, don't send RIP packet. */
  if (! if_is_operative (ifp))
    return;

  /* Fetch RIP interface information. */
  ri = ifp->info;


  /* If there is no version configuration in the interface,
     use rip's version setting. */
  {
    int vsend = ((ri->ri_send == RI_RIP_UNSPEC) ?
		 rip->version_send : ri->ri_send);
    if (vsend & RIPv1)
      rip_request_interface_send (ifp, RIPv1);
    if (vsend & RIPv2)
      rip_request_interface_send (ifp, RIPv2);
  }
}
예제 #6
0
static int
isis_zebra_if_del (int command, struct zclient *zclient, zebra_size_t length)
{
  struct interface *ifp;
  struct stream *s;

  s = zclient->ibuf;
  ifp = zebra_interface_state_read (s);

  if (!ifp)
    return 0;

  if (if_is_operative (ifp))
    zlog_warn ("Zebra: got delete of %s, but interface is still up",
	       ifp->name);

  if (isis->debugs & DEBUG_ZEBRA)
    zlog_debug ("Zebra I/F delete: %s index %d flags %ld metric %d mtu %d",
		ifp->name, ifp->ifindex, (long)ifp->flags, ifp->metric, ifp->mtu);


  /* Cannot call if_delete because we should retain the pseudo interface
     in case there is configuration info attached to it. */
  if_delete_retain(ifp);

  isis_csm_state_change (IF_DOWN_FROM_Z, circuit_scan_by_ifp (ifp), ifp);

  ifp->ifindex = IFINDEX_INTERNAL;

  return 0;
}
예제 #7
0
파일: isis_zebra.c 프로젝트: OPSF/uClinux
int
isis_zebra_if_del (int command, struct zclient *zclient, zebra_size_t length)
{
    struct interface *ifp;
    struct stream *s;

    s = zclient->ibuf;
    ifp = zebra_interface_state_read (s);

    if (!ifp)
        return 0;

    if (if_is_operative (ifp))
        zlog_warn ("Zebra: got delete of %s, but interface is still up",
                   ifp->name);

    zlog_debug ("Zebra I/F delete: %s index %d flags %ld metric %d mtu %d",
                ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu);

    if_delete (ifp);

    isis_csm_state_change (IF_DOWN_FROM_Z, circuit_scan_by_ifp (ifp), ifp);

    return 0;
}
예제 #8
0
파일: isis_zebra.c 프로젝트: OPSF/uClinux
int
isis_zebra_if_state_up (int command, struct zclient *zclient,
                        zebra_size_t length)
{
    struct interface *ifp;

    ifp = zebra_interface_if_lookup (zclient->ibuf);

    if (!ifp)
        return 0;

    if (if_is_operative (ifp))
    {
        zebra_interface_if_set_value (zclient->ibuf, ifp);
        /* HT: This is wrong actually. We can't assume that circuit exist
         * if we delete circuit during if_state_down event. Needs rethink.
         * TODO */
        isis_circuit_update_params (circuit_scan_by_ifp (ifp), ifp);
        return 0;
    }

    zebra_interface_if_set_value (zclient->ibuf, ifp);
    isis_csm_state_change (IF_UP_FROM_Z, circuit_scan_by_ifp (ifp), ifp);

    return 0;
}
예제 #9
0
파일: interface.c 프로젝트: OPSF/uClinux
void
if_refresh (struct interface *ifp)
{
  if (if_is_operative (ifp))
    {
      if_get_flags (ifp);
      if (! if_is_operative (ifp))
	if_down (ifp);
    }
  else
    {
      if_get_flags (ifp);
      if (if_is_operative (ifp))
	if_up (ifp);
    }
}
예제 #10
0
파일: bgp_zebra.c 프로젝트: DorChen/quagga
static int
bgp_interface_address_delete (int command, struct zclient *zclient,
			      zebra_size_t length)
{
  struct connected *ifc;

  ifc = zebra_interface_address_read (command, zclient->ibuf);

  if (ifc == NULL)
    return 0;

  if (BGP_DEBUG(zebra, ZEBRA))
    {
      char buf[128];
      prefix2str(ifc->address, buf, sizeof(buf));
      zlog_debug("Zebra rcvd: interface %s address delete %s",
		 ifc->ifp->name, buf);
    }

  if (if_is_operative (ifc->ifp))
    bgp_connected_delete (ifc);

  connected_free (ifc);

  return 0;
}
예제 #11
0
파일: connected.c 프로젝트: ecks/sis-is
static void
connected_announce (struct interface *ifp, struct connected *ifc)
{
  if (!ifc)
    return;
  
  listnode_add (ifp->connected, ifc);

  /* Update interface address information to protocol daemon. */
  if (! CHECK_FLAG (ifc->conf, ZEBRA_IFC_REAL))
    {
      if (ifc->address->family == AF_INET)
        if_subnet_add (ifp, ifc);

      SET_FLAG (ifc->conf, ZEBRA_IFC_REAL);

      zebra_interface_address_add_update (ifp, ifc);

      if (if_is_operative(ifp))
        {
          if (ifc->address->family == AF_INET)
	    connected_up_ipv4 (ifp, ifc);
#ifdef HAVE_IPV6
          else
            connected_up_ipv6 (ifp, ifc);
#endif
        }
    }
}
예제 #12
0
파일: isis_zebra.c 프로젝트: OPSF/uClinux
int
isis_zebra_if_address_add (int command, struct zclient *zclient,
                           zebra_size_t length)
{
    struct connected *c;
    struct prefix *p;
    char buf[BUFSIZ];

    c = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_ADD,
                                      zclient->ibuf);

    if (c == NULL)
        return 0;

    p = c->address;

    prefix2str (p, buf, BUFSIZ);
#ifdef EXTREME_DEBUG
    if (p->family == AF_INET)
        zlog_debug ("connected IP address %s", buf);
#ifdef HAVE_IPV6
    if (p->family == AF_INET6)
        zlog_debug ("connected IPv6 address %s", buf);
#endif /* HAVE_IPV6 */
#endif /* EXTREME_DEBUG */
    if (if_is_operative (c->ifp))
        isis_circuit_add_addr (circuit_scan_by_ifp (c->ifp), c);

    return 0;
}
예제 #13
0
/* Update the flags field of the ifp with the new flag set provided.
 * Take whatever actions are required for any changes in flags we care
 * about.
 *
 * newflags should be the raw value, as obtained from the OS.
 */
void
if_flags_update (struct interface *ifp, uint64_t newflags)
{
  if_flags_mangle (ifp, &newflags);
    
  if (if_is_operative (ifp))
    {
      /* operative -> inoperative? */
      ifp->flags = newflags;
      if (!if_is_operative (ifp))
        if_down (ifp);
    }
  else
    {
      /* inoperative -> operative? */
      ifp->flags = newflags;
      if (if_is_operative (ifp))
        if_up (ifp);
    }
}
예제 #14
0
static int pim_zebra_if_state_down(int command, struct zclient *zclient,
				   zebra_size_t length)
{
  struct interface *ifp;

  /*
    zebra api notifies interface up/down events by using the same call
    zebra_interface_state_read below, see comments in lib/zclient.c
  */
  ifp = zebra_interface_state_read(zclient->ibuf);
  if (!ifp)
    return 0;

  zlog_info("INTERFACE DOWN: %s ifindex=%d", ifp->name, ifp->ifindex);

  if (PIM_DEBUG_ZEBRA) {
    zlog_debug("%s: %s index %d flags %ld metric %d mtu %d operative %d",
	       __PRETTY_FUNCTION__,
	       ifp->name, ifp->ifindex, (long)ifp->flags, ifp->metric,
	       ifp->mtu, if_is_operative(ifp));
  }

  if (!if_is_operative(ifp)) {
    /*
      pim_if_addr_del_all() suffices for shutting down IGMP,
      but not for shutting down PIM
    */
    pim_if_addr_del_all(ifp);

    /*
      pim_sock_delete() closes the socket, stops read and timer threads,
      and kills all neighbors.
    */
    if (ifp->info) {
      pim_sock_delete(ifp, "link down");
    }
  }

  return 0;
}
예제 #15
0
/* This will be executed when interface goes up. */
static void
stp_request_interface (struct interface *ifp)
{
  /* In default stpd doesn't send RIP_REQUEST to the loopback interface. */
  if (if_is_loopback (ifp))
    return;

  /* If interface is down, don't send RIP packet. */
  if (! if_is_operative (ifp))
    return;


}
예제 #16
0
static int
isis_kroute_if_add (int command, struct zclient *zclient, kroute_size_t length)
{
  struct interface *ifp;

  ifp = kroute_interface_add_read (zclient->ibuf);

  if (isis->debugs & DEBUG_KROUTE)
    zlog_debug ("Kroute I/F add: %s index %d flags %ld metric %d mtu %d",
		ifp->name, ifp->ifindex, (long)ifp->flags, ifp->metric, ifp->mtu);

  if (if_is_operative (ifp))
    isis_csm_state_change (IF_UP_FROM_Z, circuit_scan_by_ifp (ifp), ifp);

  return 0;
}
예제 #17
0
파일: isis_zebra.c 프로젝트: OPSF/uClinux
int
isis_zebra_if_add (int command, struct zclient *zclient, zebra_size_t length)
{
    struct interface *ifp;

    ifp = zebra_interface_add_read (zclient->ibuf);


    zlog_debug ("Zebra I/F add: %s index %d flags %ld metric %d mtu %d",
                ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu);

    if (if_is_operative (ifp))
        isis_csm_state_change (IF_UP_FROM_Z, circuit_scan_by_ifp (ifp), ifp);

    return 0;
}
예제 #18
0
파일: isis_zebra.c 프로젝트: OPSF/uClinux
int
isis_zebra_if_state_down (int command, struct zclient *zclient,
                          zebra_size_t length)
{
    struct interface *ifp;

    ifp = zebra_interface_if_lookup (zclient->ibuf);

    if (ifp == NULL)
        return 0;

    if (if_is_operative (ifp))
    {
        zebra_interface_if_set_value (zclient->ibuf, ifp);
        isis_csm_state_change (IF_DOWN_FROM_Z, circuit_scan_by_ifp (ifp), ifp);
    }

    return 0;
}
예제 #19
0
static int
isis_zebra_if_address_del (int command, struct zclient *client,
			   zebra_size_t length, vrf_id_t vrf_id)
{
  struct connected *c;
  struct interface *ifp;
#ifdef EXTREME_DEBUG
  struct prefix *p;
  u_char buf[BUFSIZ];
#endif /* EXTREME_DEBUG */

  c = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_DELETE,
				    zclient->ibuf, vrf_id);

  if (c == NULL)
    return 0;

  ifp = c->ifp;

#ifdef EXTREME_DEBUG
  p = c->address;
  prefix2str (p, buf, BUFSIZ);

  if (p->family == AF_INET)
    zlog_debug ("disconnected IP address %s", buf);
#ifdef HAVE_IPV6
  if (p->family == AF_INET6)
    zlog_debug ("disconnected IPv6 address %s", buf);
#endif /* HAVE_IPV6 */
#endif /* EXTREME_DEBUG */

  if (if_is_operative (ifp))
    isis_circuit_del_addr (circuit_scan_by_ifp (ifp), c);
  connected_free (c);

  return 0;
}
예제 #20
0
static int
rsvp_interface_state_up (int command, struct zclient *zclient,
			 zebra_size_t length)
{
  struct interface *ifp;

  ifp = zebra_interface_if_lookup (zclient->ibuf);

  if (ifp == NULL)
    return 0;

  /* Interface is already up. */
  if (if_is_operative (ifp))
    {
      /* Temporarily keep ifp values. */
      struct interface if_tmp;
      memcpy (&if_tmp, ifp, sizeof (struct interface));

      zebra_interface_if_set_value (zclient->ibuf, ifp);

      zlog_debug ("Zebra: Interface[%s] state update.", ifp->name);

      if (if_tmp.bandwidth != ifp->bandwidth)
	{
	  zlog_debug ("Zebra: Interface[%s] bandwidth change %d -> %d.",
		      ifp->name, if_tmp.bandwidth, ifp->bandwidth);
	}
      return 0;
    }

  zebra_interface_if_set_value (zclient->ibuf, ifp);

  zlog_debug ("Zebra: Interface[%s] state change to up.", ifp->name);

  return 0;
}
예제 #21
0
int netlink_link_change(struct nlmsghdr *h, ns_id_t ns_id, int startup)
{
	int len;
	struct ifinfomsg *ifi;
	struct rtattr *tb[IFLA_MAX + 1];
	struct rtattr *linkinfo[IFLA_MAX + 1];
	struct interface *ifp;
	char *name = NULL;
	char *kind = NULL;
	char *desc = NULL;
	char *slave_kind = NULL;
	struct zebra_ns *zns;
	vrf_id_t vrf_id = VRF_DEFAULT;
	zebra_iftype_t zif_type = ZEBRA_IF_OTHER;
	zebra_slave_iftype_t zif_slave_type = ZEBRA_IF_SLAVE_NONE;
	ifindex_t bridge_ifindex = IFINDEX_INTERNAL;
	ifindex_t link_ifindex = IFINDEX_INTERNAL;


	zns = zebra_ns_lookup(ns_id);
	ifi = NLMSG_DATA(h);

	/* assume if not default zns, then new VRF */
	if (!(h->nlmsg_type == RTM_NEWLINK || h->nlmsg_type == RTM_DELLINK)) {
		/* If this is not link add/delete message so print warning. */
		zlog_warn("netlink_link_change: wrong kernel message %d",
			  h->nlmsg_type);
		return 0;
	}

	if (!(ifi->ifi_family == AF_UNSPEC || ifi->ifi_family == AF_BRIDGE
	      || ifi->ifi_family == AF_INET6)) {
		zlog_warn(
			"Invalid address family: %u received from kernel link change: %u",
			ifi->ifi_family, h->nlmsg_type);
		return 0;
	}

	len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifinfomsg));
	if (len < 0) {
		zlog_err("%s: Message received from netlink is of a broken size %d %zu",
			 __PRETTY_FUNCTION__, h->nlmsg_len,
			 (size_t)NLMSG_LENGTH(sizeof(struct ifinfomsg)));
		return -1;
	}

	/* We are interested in some AF_BRIDGE notifications. */
	if (ifi->ifi_family == AF_BRIDGE)
		return netlink_bridge_interface(h, len, ns_id, startup);

	/* Looking up interface name. */
	memset(tb, 0, sizeof tb);
	memset(linkinfo, 0, sizeof linkinfo);
	netlink_parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);

	/* check for wireless messages to ignore */
	if ((tb[IFLA_WIRELESS] != NULL) && (ifi->ifi_change == 0)) {
		if (IS_ZEBRA_DEBUG_KERNEL)
			zlog_debug("%s: ignoring IFLA_WIRELESS message",
				   __func__);
		return 0;
	}

	if (tb[IFLA_IFNAME] == NULL)
		return -1;
	name = (char *)RTA_DATA(tb[IFLA_IFNAME]);

	if (tb[IFLA_LINKINFO]) {
		parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb[IFLA_LINKINFO]);

		if (linkinfo[IFLA_INFO_KIND])
			kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]);

		if (linkinfo[IFLA_INFO_SLAVE_KIND])
			slave_kind = RTA_DATA(linkinfo[IFLA_INFO_SLAVE_KIND]);

		netlink_determine_zebra_iftype(kind, &zif_type);
	}

	/* If linking to another interface, note it. */
	if (tb[IFLA_LINK])
		link_ifindex = *(ifindex_t *)RTA_DATA(tb[IFLA_LINK]);

	if (tb[IFLA_IFALIAS]) {
		desc = (char *)RTA_DATA(tb[IFLA_IFALIAS]);
	}

	/* If VRF, create or update the VRF structure itself. */
	if (zif_type == ZEBRA_IF_VRF && !vrf_is_backend_netns()) {
		netlink_vrf_change(h, tb[IFLA_LINKINFO], name);
		vrf_id = (vrf_id_t)ifi->ifi_index;
	}

	/* See if interface is present. */
	ifp = if_lookup_by_name_per_ns(zns, name);

	if (ifp) {
		if (ifp->desc)
			XFREE(MTYPE_TMP, ifp->desc);
		if (desc)
			ifp->desc = XSTRDUP(MTYPE_TMP, desc);
	}

	if (h->nlmsg_type == RTM_NEWLINK) {
		if (tb[IFLA_MASTER]) {
			if (slave_kind && (strcmp(slave_kind, "vrf") == 0)
			    && !vrf_is_backend_netns()) {
				zif_slave_type = ZEBRA_IF_SLAVE_VRF;
				vrf_id = *(uint32_t *)RTA_DATA(tb[IFLA_MASTER]);
			} else if (slave_kind
				   && (strcmp(slave_kind, "bridge") == 0)) {
				zif_slave_type = ZEBRA_IF_SLAVE_BRIDGE;
				bridge_ifindex =
					*(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]);
			} else
				zif_slave_type = ZEBRA_IF_SLAVE_OTHER;
		}
		if (vrf_is_backend_netns())
			vrf_id = (vrf_id_t)ns_id;
		if (ifp == NULL
		    || !CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE)) {
			/* Add interface notification from kernel */
			if (IS_ZEBRA_DEBUG_KERNEL)
				zlog_debug(
					"RTM_NEWLINK ADD for %s(%u) vrf_id %u type %d "
					"sl_type %d master %u flags 0x%x",
					name, ifi->ifi_index, vrf_id, zif_type,
					zif_slave_type, bridge_ifindex,
					ifi->ifi_flags);

			if (ifp == NULL) {
				/* unknown interface */
				ifp = if_get_by_name(name, vrf_id, 0);
			} else {
				/* pre-configured interface, learnt now */
				if (ifp->vrf_id != vrf_id)
					if_update_to_new_vrf(ifp, vrf_id);
			}

			/* Update interface information. */
			set_ifindex(ifp, ifi->ifi_index, zns);
			ifp->flags = ifi->ifi_flags & 0x0000fffff;
			if (!tb[IFLA_MTU]) {
				zlog_warn(
					"RTM_NEWLINK for interface %s(%u) without MTU set",
					name, ifi->ifi_index);
				return 0;
			}
			ifp->mtu6 = ifp->mtu = *(int *)RTA_DATA(tb[IFLA_MTU]);
			ifp->metric = 0;
			ifp->ptm_status = ZEBRA_PTM_STATUS_UNKNOWN;

			/* Set interface type */
			zebra_if_set_ziftype(ifp, zif_type, zif_slave_type);
			if (IS_ZEBRA_IF_VRF(ifp))
				SET_FLAG(ifp->status,
					 ZEBRA_INTERFACE_VRF_LOOPBACK);

			/* Update link. */
			zebra_if_update_link(ifp, link_ifindex);

			netlink_interface_update_hw_addr(tb, ifp);

			/* Inform clients, install any configured addresses. */
			if_add_update(ifp);

			/* Extract and save L2 interface information, take
			 * additional actions. */
			netlink_interface_update_l2info(
				ifp, linkinfo[IFLA_INFO_DATA], 1);
			if (IS_ZEBRA_IF_BRIDGE_SLAVE(ifp))
				zebra_l2if_update_bridge_slave(ifp,
							       bridge_ifindex);
			if_netlink_check_ifp_instance_consistency(RTM_NEWLINK,
								  ifp, ns_id);
		} else if (ifp->vrf_id != vrf_id) {
			/* VRF change for an interface. */
			if (IS_ZEBRA_DEBUG_KERNEL)
				zlog_debug(
					"RTM_NEWLINK vrf-change for %s(%u) "
					"vrf_id %u -> %u flags 0x%x",
					name, ifp->ifindex, ifp->vrf_id, vrf_id,
					ifi->ifi_flags);

			if_handle_vrf_change(ifp, vrf_id);
		} else {
			int was_bridge_slave;

			/* Interface update. */
			if (IS_ZEBRA_DEBUG_KERNEL)
				zlog_debug(
					"RTM_NEWLINK update for %s(%u) "
					"sl_type %d master %u flags 0x%x",
					name, ifp->ifindex, zif_slave_type,
					bridge_ifindex, ifi->ifi_flags);

			set_ifindex(ifp, ifi->ifi_index, zns);
			if (!tb[IFLA_MTU]) {
				zlog_warn(
					"RTM_NEWLINK for interface %s(%u) without MTU set",
					name, ifi->ifi_index);
				return 0;
			}
			ifp->mtu6 = ifp->mtu = *(int *)RTA_DATA(tb[IFLA_MTU]);
			ifp->metric = 0;

			/* Update interface type - NOTE: Only slave_type can
			 * change. */
			was_bridge_slave = IS_ZEBRA_IF_BRIDGE_SLAVE(ifp);
			zebra_if_set_ziftype(ifp, zif_type, zif_slave_type);

			netlink_interface_update_hw_addr(tb, ifp);

			if (if_is_no_ptm_operative(ifp)) {
				ifp->flags = ifi->ifi_flags & 0x0000fffff;
				if (!if_is_no_ptm_operative(ifp)) {
					if (IS_ZEBRA_DEBUG_KERNEL)
						zlog_debug(
							"Intf %s(%u) has gone DOWN",
							name, ifp->ifindex);
					if_down(ifp);
				} else if (if_is_operative(ifp)) {
					/* Must notify client daemons of new
					 * interface status. */
					if (IS_ZEBRA_DEBUG_KERNEL)
						zlog_debug(
							"Intf %s(%u) PTM up, notifying clients",
							name, ifp->ifindex);
					zebra_interface_up_update(ifp);
				}
			} else {
				ifp->flags = ifi->ifi_flags & 0x0000fffff;
				if (if_is_operative(ifp)) {
					if (IS_ZEBRA_DEBUG_KERNEL)
						zlog_debug(
							"Intf %s(%u) has come UP",
							name, ifp->ifindex);
					if_up(ifp);
				}
			}

			/* Extract and save L2 interface information, take
			 * additional actions. */
			netlink_interface_update_l2info(
				ifp, linkinfo[IFLA_INFO_DATA], 0);
			if (IS_ZEBRA_IF_BRIDGE_SLAVE(ifp) || was_bridge_slave)
				zebra_l2if_update_bridge_slave(ifp,
							       bridge_ifindex);
			if_netlink_check_ifp_instance_consistency(RTM_NEWLINK,
								  ifp, ns_id);
		}
	} else {
		/* Delete interface notification from kernel */
		if (ifp == NULL) {
			zlog_warn("RTM_DELLINK for unknown interface %s(%u)",
				  name, ifi->ifi_index);
			return 0;
		}

		if (IS_ZEBRA_DEBUG_KERNEL)
			zlog_debug("RTM_DELLINK for %s(%u)", name,
				   ifp->ifindex);

		UNSET_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK);

		/* Special handling for bridge or VxLAN interfaces. */
		if (IS_ZEBRA_IF_BRIDGE(ifp))
			zebra_l2_bridge_del(ifp);
		else if (IS_ZEBRA_IF_VXLAN(ifp))
			zebra_l2_vxlanif_del(ifp);

		if (!IS_ZEBRA_IF_VRF(ifp))
			if_delete_update(ifp);
		if_netlink_check_ifp_instance_consistency(RTM_DELLINK,
							  ifp, ns_id);
	}

	return 0;
}
/* Update interface status. */
void
rip_enable_apply (struct interface *ifp)
{
  int ret;
  struct rip_interface *ri = NULL;

  /* Check interface. */
  if (! if_is_operative (ifp))
    return;

  ri = ifp->info;

  /* Check network configuration. */
  ret = rip_enable_network_lookup_if (ifp);

  /* If the interface is matched. */
  if (ret > 0)
    ri->enable_network = 1;
  else
    ri->enable_network = 0;

  /* Check interface name configuration. */
  ret = rip_enable_if_lookup (ifp->name);
  if (ret >= 0)
    ri->enable_interface = 1;
  else
    ri->enable_interface = 0;

  /* any interface MUST have an IPv4 address */
  if ( ! rip_if_ipv4_address_check (ifp) )
    {
      ri->enable_network = 0;
      ri->enable_interface = 0;
    }

  /* Update running status of the interface. */
  if (ri->enable_network || ri->enable_interface)
    {
	{
	  if (IS_RIP_DEBUG_EVENT)
	    zlog_debug ("turn on %s", ifp->name);

	  /* Add interface wake up thread. */
	  if (! ri->t_wakeup)
	    ri->t_wakeup = thread_add_timer (master, rip_interface_wakeup,
					     ifp, 1);
          rip_connect_set (ifp, 1);
	}
    }
  else
    {
      if (ri->running)
	{
	  /* Might as well clean up the route table as well
	   * rip_if_down sets to 0 ri->running, and displays "turn off %s"
	   **/ 
	  rip_if_down(ifp);

          rip_connect_set (ifp, 0);
	}
    }
}
예제 #23
0
void eigrp_zebra_init(void)
{
	struct zclient_options opt = {.receive_notify = false};

	zclient = zclient_new_notify(master, &opt);

	zclient_init(zclient, ZEBRA_ROUTE_EIGRP, 0, &eigrpd_privs);
	zclient->zebra_connected = eigrp_zebra_connected;
	zclient->router_id_update = eigrp_router_id_update_zebra;
	zclient->interface_add = eigrp_interface_add;
	zclient->interface_delete = eigrp_interface_delete;
	zclient->interface_up = eigrp_interface_state_up;
	zclient->interface_down = eigrp_interface_state_down;
	zclient->interface_address_add = eigrp_interface_address_add;
	zclient->interface_address_delete = eigrp_interface_address_delete;
	zclient->redistribute_route_add = eigrp_zebra_read_route;
	zclient->redistribute_route_del = eigrp_zebra_read_route;
	zclient->route_notify_owner = eigrp_zebra_route_notify_owner;
}


/* Zebra route add and delete treatment. */
static int eigrp_zebra_read_route(int command, struct zclient *zclient,
				  zebra_size_t length, vrf_id_t vrf_id)
{
	struct zapi_route api;
	struct eigrp *eigrp;

	if (zapi_route_decode(zclient->ibuf, &api) < 0)
		return -1;

	if (IPV4_NET127(ntohl(api.prefix.u.prefix4.s_addr)))
		return 0;

	eigrp = eigrp_lookup();
	if (eigrp == NULL)
		return 0;

	if (command == ZEBRA_REDISTRIBUTE_ROUTE_ADD) {

	} else /* if (command == ZEBRA_REDISTRIBUTE_ROUTE_DEL) */
	{
	}

	return 0;
}

/* Inteface addition message from zebra. */
static int eigrp_interface_add(int command, struct zclient *zclient,
			       zebra_size_t length, vrf_id_t vrf_id)
{
	struct interface *ifp;
	struct eigrp_interface *ei;

	ifp = zebra_interface_add_read(zclient->ibuf, vrf_id);

	if (!ifp->info)
		return 0;

	ei = ifp->info;

	ei->params.type = eigrp_default_iftype(ifp);

	eigrp_if_update(ifp);

	return 0;
}

static int eigrp_interface_delete(int command, struct zclient *zclient,
				  zebra_size_t length, vrf_id_t vrf_id)
{
	struct interface *ifp;
	struct stream *s;

	s = zclient->ibuf;
	/* zebra_interface_state_read () updates interface structure in iflist
	 */
	ifp = zebra_interface_state_read(s, vrf_id);

	if (ifp == NULL)
		return 0;

	if (if_is_up(ifp))
		zlog_warn("Zebra: got delete of %s, but interface is still up",
			  ifp->name);

	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
		zlog_debug(
			"Zebra: interface delete %s index %d flags %llx metric %d mtu %d",
			ifp->name, ifp->ifindex, (unsigned long long)ifp->flags,
			ifp->metric, ifp->mtu);

	if (ifp->info)
		eigrp_if_free(ifp->info, INTERFACE_DOWN_BY_ZEBRA);

	if_set_index(ifp, IFINDEX_INTERNAL);
	return 0;
}

static int eigrp_interface_address_add(int command, struct zclient *zclient,
				       zebra_size_t length, vrf_id_t vrf_id)
{
	struct connected *c;

	c = zebra_interface_address_read(command, zclient->ibuf, vrf_id);

	if (c == NULL)
		return 0;

	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE)) {
		char buf[128];
		prefix2str(c->address, buf, sizeof(buf));
		zlog_debug("Zebra: interface %s address add %s", c->ifp->name,
			   buf);
	}

	eigrp_if_update(c->ifp);

	return 0;
}

static int eigrp_interface_address_delete(int command, struct zclient *zclient,
					  zebra_size_t length, vrf_id_t vrf_id)
{
	struct connected *c;
	struct interface *ifp;
	struct eigrp_interface *ei;

	c = zebra_interface_address_read(command, zclient->ibuf, vrf_id);

	if (c == NULL)
		return 0;

	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE)) {
		char buf[128];
		prefix2str(c->address, buf, sizeof(buf));
		zlog_debug("Zebra: interface %s address delete %s",
			   c->ifp->name, buf);
	}

	ifp = c->ifp;
	ei = ifp->info;
	if (!ei)
		return 0;

	/* Call interface hook functions to clean up */
	eigrp_if_free(ei, INTERFACE_DOWN_BY_ZEBRA);

	connected_free(c);

	return 0;
}

static int eigrp_interface_state_up(int command, struct zclient *zclient,
				    zebra_size_t length, vrf_id_t vrf_id)
{
	struct interface *ifp;

	ifp = zebra_interface_if_lookup(zclient->ibuf);

	if (ifp == NULL)
		return 0;

	/* Interface is already up. */
	if (if_is_operative(ifp)) {
		/* Temporarily keep ifp values. */
		struct interface if_tmp;
		memcpy(&if_tmp, ifp, sizeof(struct interface));

		zebra_interface_if_set_value(zclient->ibuf, ifp);

		if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
			zlog_debug("Zebra: Interface[%s] state update.",
				   ifp->name);

		if (if_tmp.bandwidth != ifp->bandwidth) {
			if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
				zlog_debug(
					"Zebra: Interface[%s] bandwidth change %d -> %d.",
					ifp->name, if_tmp.bandwidth,
					ifp->bandwidth);

			//          eigrp_if_recalculate_output_cost (ifp);
		}

		if (if_tmp.mtu != ifp->mtu) {
			if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
				zlog_debug(
					"Zebra: Interface[%s] MTU change %u -> %u.",
					ifp->name, if_tmp.mtu, ifp->mtu);

			/* Must reset the interface (simulate down/up) when MTU
			 * changes. */
			eigrp_if_reset(ifp);
		}
		return 0;
	}

	zebra_interface_if_set_value(zclient->ibuf, ifp);

	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
		zlog_debug("Zebra: Interface[%s] state change to up.",
			   ifp->name);

	if (ifp->info)
		eigrp_if_up(ifp->info);

	return 0;
}

static int eigrp_interface_state_down(int command, struct zclient *zclient,
				      zebra_size_t length, vrf_id_t vrf_id)
{
	struct interface *ifp;

	ifp = zebra_interface_state_read(zclient->ibuf, vrf_id);

	if (ifp == NULL)
		return 0;

	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
		zlog_debug("Zebra: Interface[%s] state change to down.",
			   ifp->name);

	if (ifp->info)
		eigrp_if_down(ifp->info);

	return 0;
}

static struct interface *zebra_interface_if_lookup(struct stream *s)
{
	char ifname_tmp[INTERFACE_NAMSIZ];

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

	/* And look it up. */
	return if_lookup_by_name(ifname_tmp, VRF_DEFAULT);
}
예제 #24
0
파일: interface.c 프로젝트: OPSF/uClinux
/* Wake up configured address if it is not in current kernel
   address. */
void
if_addr_wakeup (struct interface *ifp)
{
  struct listnode *node;
  struct connected *ifc;
  struct prefix *p;
  int ret;

  for (node = listhead (ifp->connected); node; nextnode (node))
    {
      ifc = getdata (node);
      p = ifc->address;
	
      if (CHECK_FLAG (ifc->conf, ZEBRA_IFC_CONFIGURED)
	  && ! CHECK_FLAG (ifc->conf, ZEBRA_IFC_REAL))
	{
	  /* Address check. */
	  if (p->family == AF_INET)
	    {
	      if (! if_is_up (ifp))
		{
		  if_set_flags (ifp, IFF_UP | IFF_RUNNING);
		  if_refresh (ifp);
		}

	      ret = if_set_prefix (ifp, ifc);
	      if (ret < 0)
		{
		  zlog_warn ("Can't set interface's address: %s", 
			     safe_strerror(errno));
		  continue;
		}
	      SET_FLAG (ifc->conf, ZEBRA_IFC_REAL);

	      zebra_interface_address_add_update (ifp, ifc);

	      if (if_is_operative(ifp))
		connected_up_ipv4 (ifp, ifc);
	    }
#ifdef HAVE_IPV6
	  if (p->family == AF_INET6)
	    {
	      if (! if_is_up (ifp))
		{
		  if_set_flags (ifp, IFF_UP | IFF_RUNNING);
		  if_refresh (ifp);
		}

	      ret = if_prefix_add_ipv6 (ifp, ifc);
	      if (ret < 0)
		{
		  zlog_warn ("Can't set interface's address: %s", 
			     safe_strerror(errno));
		  continue;
		}
	      SET_FLAG (ifc->conf, ZEBRA_IFC_REAL);

	      zebra_interface_address_add_update (ifp, ifc);

	      if (if_is_operative(ifp))
		connected_up_ipv6 (ifp, ifc);
	    }
#endif /* HAVE_IPV6 */
	}
    }
}
예제 #25
0
static int
ospf_interface_state_up (int command, struct zclient *zclient,
                         zebra_size_t length)
{
  struct interface *ifp;
  struct ospf_interface *oi;
  struct route_node *rn;

  ifp = zebra_interface_if_lookup (zclient->ibuf);

  if (ifp == NULL)
    return 0;

  /* Interface is already up. */
  if (if_is_operative (ifp))
    {
      /* Temporarily keep ifp values. */
      struct interface if_tmp;
      memcpy (&if_tmp, ifp, sizeof (struct interface));

      zebra_interface_if_set_value (zclient->ibuf, ifp);

      if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE))
        zlog_debug ("Zebra: Interface[%s] state update.", ifp->name);

      if (if_tmp.bandwidth != ifp->bandwidth)
        {
          if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE))
            zlog_debug ("Zebra: Interface[%s] bandwidth change %d -> %d.",
                       ifp->name, if_tmp.bandwidth, ifp->bandwidth);

          ospf_if_recalculate_output_cost (ifp);
        }

      if (if_tmp.mtu != ifp->mtu)
        {
          if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE))
            zlog_debug ("Zebra: Interface[%s] MTU change %u -> %u.",
                       ifp->name, if_tmp.mtu, ifp->mtu);

	  /* Must reset the interface (simulate down/up) when MTU changes. */
          ospf_if_reset(ifp);
	}
      return 0;
    }

  zebra_interface_if_set_value (zclient->ibuf, ifp);

  if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE))
    zlog_debug ("Zebra: Interface[%s] state change to up.", ifp->name);

  for (rn = route_top (IF_OIFS (ifp)); rn; rn = route_next (rn))
    {
      if ((oi = rn->info) == NULL)
        continue;

      ospf_if_up (oi);
    }

  return 0;
}
예제 #26
0
파일: rt_netlink.c 프로젝트: rgmabs19357/HA
static int
netlink_link_change (struct sockaddr_nl *snl, struct nlmsghdr *h)
{
  int len;
  struct ifinfomsg *ifi;
  struct rtattr *tb[IFLA_MAX + 1];
  struct interface *ifp;
  char *name;

  ifi = NLMSG_DATA (h);

  if (!(h->nlmsg_type == RTM_NEWLINK || h->nlmsg_type == RTM_DELLINK))
    {
      /* If this is not link add/delete message so print warning. */
      zlog_warn ("netlink_link_change: wrong kernel message %d\n",
                 h->nlmsg_type);
      return 0;
    }

  len = h->nlmsg_len - NLMSG_LENGTH (sizeof (struct ifinfomsg));
  if (len < 0)
    return -1;

  /* Looking up interface name. */
  memset (tb, 0, sizeof tb);
  netlink_parse_rtattr (tb, IFLA_MAX, IFLA_RTA (ifi), len);

#ifdef IFLA_WIRELESS
  /* check for wireless messages to ignore */
  if ((tb[IFLA_WIRELESS] != NULL) && (ifi->ifi_change == 0))
    {
      if (IS_DEBUG_HA(kroute, KROUTE))
        zlog_debug ("%s: ignoring IFLA_WIRELESS message", __func__);
      return 0;
    }
#endif /* IFLA_WIRELESS */
  
  if (tb[IFLA_IFNAME] == NULL)
    return -1;
  name = (char *) RTA_DATA (tb[IFLA_IFNAME]);

  /* Add interface. */
  if (h->nlmsg_type == RTM_NEWLINK)
    {
      ifp = if_lookup_by_name (name);

      if (ifp == NULL || !CHECK_FLAG (ifp->status, KROUTE_INTERFACE_ACTIVE))
        {
          if (ifp == NULL)
            ifp = if_get_by_name (name);

          set_ifindex(ifp, ifi->ifi_index);
          ifp->flags = ifi->ifi_flags & 0x0000fffff;
          ifp->mtu6 = ifp->mtu = *(int *) RTA_DATA (tb[IFLA_MTU]);
          ifp->metric = 1;

          netlink_interface_update_hw_addr (tb, ifp);

          /* If new link is added. */
          if_add_update (ifp);
        }
      else
        {
          /* Interface status change. */
          set_ifindex(ifp, ifi->ifi_index);
          ifp->mtu6 = ifp->mtu = *(int *) RTA_DATA (tb[IFLA_MTU]);
          ifp->metric = 1;

          netlink_interface_update_hw_addr (tb, ifp);

          if (if_is_operative (ifp))
            {
              ifp->flags = ifi->ifi_flags & 0x0000fffff;
              if (!if_is_operative (ifp))
                if_down (ifp);
	      else
		/* Must notify client daemons of new interface status. */
	        kroute_interface_up_update (ifp);
            }
          else
            {
              ifp->flags = ifi->ifi_flags & 0x0000fffff;
              if (if_is_operative (ifp))
                if_up (ifp);
            }
        }
    }
  else
    {
      /* RTM_DELLINK. */
      ifp = if_lookup_by_name (name);

      if (ifp == NULL)
        {
          zlog (NULL, LOG_WARNING, "interface %s is deleted but can't find",
                name);
          return 0;
        }

      if_delete_update (ifp);
    }

  return 0;
}
void pim_if_addr_add(struct connected *ifc)
{
  struct pim_interface *pim_ifp;
  struct interface *ifp;
  struct in_addr ifaddr;

  zassert(ifc);

  ifp = ifc->ifp;
  zassert(ifp);
  pim_ifp = ifp->info;
  if (!pim_ifp)
    return;

  if (!if_is_operative(ifp))
    return;

  /* if (PIM_DEBUG_ZEBRA) */ {
    char buf[BUFSIZ];
    prefix2str(ifc->address, buf, BUFSIZ);
    zlog_debug("%s: %s ifindex=%d connected IP address %s %s",
	       __PRETTY_FUNCTION__,
	       ifp->name, ifp->ifindex, buf,
	       CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY) ?
	       "secondary" : "primary");
  }

  ifaddr = ifc->address->u.prefix4;

  detect_address_change(ifp, 0, __PRETTY_FUNCTION__);

  if (PIM_IF_TEST_IGMP(pim_ifp->options)) {
    struct igmp_sock *igmp;

    /* lookup IGMP socket */
    igmp = pim_igmp_sock_lookup_ifaddr(pim_ifp->igmp_socket_list,
				       ifaddr);
    if (!igmp) {
      /* if addr new, add IGMP socket */
      pim_igmp_sock_add(pim_ifp->igmp_socket_list, ifaddr, ifp);
    }
  } /* igmp */

  if (PIM_IF_TEST_PIM(pim_ifp->options)) {

    /* Interface has a valid primary address ? */
    if (PIM_INADDR_ISNOT_ANY(pim_ifp->primary_address)) {

      /* Interface has a valid socket ? */
      if (pim_ifp->pim_sock_fd < 0) {
	if (pim_sock_add(ifp)) {
	  zlog_warn("Failure creating PIM socket for interface %s",
		    ifp->name);
	}
      }

    }
  } /* pim */

  if (PIM_MROUTE_IS_ENABLED) {
    /*
      PIM or IGMP is enabled on interface, and there is at least one
      address assigned, then try to create a vif_index.
    */
    if (pim_ifp->mroute_vif_index < 0) {
      pim_if_add_vif(ifp);
    }
  }
}
예제 #28
0
/* Wake up configured address if it is not in current kernel
   address. */
static void
if_addr_wakeup (struct interface *ifp)
{
  struct listnode *node, *nnode;
  struct connected *ifc;
  struct prefix *p;
  int ret;

  for (ALL_LIST_ELEMENTS (ifp->connected, node, nnode, ifc))
    {
      p = ifc->address;
	
      if (CHECK_FLAG (ifc->conf, ZEBRA_IFC_CONFIGURED)
	  && ! CHECK_FLAG (ifc->conf, ZEBRA_IFC_REAL))
	{
	  /* Address check. */
	  if (p->family == AF_INET)
	    {
	      if (! if_is_up (ifp))
		{
		  /* XXX: WTF is it trying to set flags here?
		   * caller has just gotten a new interface, has been
                   * handed the flags already. This code has no business
                   * trying to override administrative status of the interface.
                   * The only call path to here which doesn't originate from
                   * kernel event is irdp - what on earth is it trying to do?
                   *
                   * further RUNNING is not a settable flag on any system
                   * I (paulj) am aware of.
                   */
		  if_set_flags (ifp, IFF_UP | IFF_RUNNING);
		  if_refresh (ifp);
		}

	      ret = if_set_prefix (ifp, ifc);
	      if (ret < 0)
		{
		  zlog_warn ("Can't set interface's address: %s", 
			     safe_strerror(errno));
		  continue;
		}

	      /* Add to subnet chain list. */
	      if_subnet_add (ifp, ifc);

	      SET_FLAG (ifc->conf, ZEBRA_IFC_REAL);

	      zebra_interface_address_add_update (ifp, ifc);

	      if (if_is_operative(ifp))
		connected_up_ipv4 (ifp, ifc);
	    }
#ifdef HAVE_IPV6
	  if (p->family == AF_INET6)
	    {
	      if (! if_is_up (ifp))
		{
		  /* XXX: See long comment above */
		  if_set_flags (ifp, IFF_UP | IFF_RUNNING);
		  if_refresh (ifp);
		}

	      ret = if_prefix_add_ipv6 (ifp, ifc);
	      if (ret < 0)
		{
		  zlog_warn ("Can't set interface's address: %s", 
			     safe_strerror(errno));
		  continue;
		}
	      SET_FLAG (ifc->conf, ZEBRA_IFC_REAL);

	      zebra_interface_address_add_update (ifp, ifc);

	      if (if_is_operative(ifp))
		connected_up_ipv6 (ifp, ifc);
	    }
#endif /* HAVE_IPV6 */
	}
    }
}