void connected_down_ipv4(struct interface *ifp, struct connected *ifc)
{
struct prefix_ipv4 p;
if (!CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL))
return;
PREFIX_COPY_IPV4(&p, CONNECTED_PREFIX(ifc));
/* Apply mask to the network. */
apply_mask_ipv4(&p);
/* In case of connected address is 0.0.0.0/0 we treat it tunnel
address. */
if (prefix_ipv4_any(&p))
return;
/* Same logic as for connected_up_ipv4(): push the changes into the head. */
rib_delete_ipv4(ZEBRA_ROUTE_CONNECT, 0, &p, NULL, ifp->ifindex, 0,
SAFI_UNICAST);
rib_delete_ipv4(ZEBRA_ROUTE_CONNECT, 0, &p, NULL, ifp->ifindex, 0,
SAFI_MULTICAST);
rib_update();
}
/* Called from if_up(). */
void connected_up_ipv4(struct interface *ifp, struct connected *ifc)
{
struct prefix_ipv4 p;
if (!CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL))
return;
PREFIX_COPY_IPV4(&p, CONNECTED_PREFIX(ifc));
/* Apply mask to the network. */
apply_mask_ipv4(&p);
/* In case of connected address is 0.0.0.0/0 we treat it tunnel
address. */
if (prefix_ipv4_any(&p))
return;
rib_add_ipv4(ZEBRA_ROUTE_CONNECT, 0, &p, NULL, NULL, ifp->ifindex,
RT_TABLE_MAIN, ifp->metric, 0, SAFI_UNICAST);
rib_add_ipv4(ZEBRA_ROUTE_CONNECT, 0, &p, NULL, NULL, ifp->ifindex,
RT_TABLE_MAIN, ifp->metric, 0, SAFI_MULTICAST);
rib_update();
}
void
connected_down_ipv4 (struct interface *ifp, struct connected *ifc)
{
struct prefix_ipv4 p;
struct prefix_ipv4 *addr;
struct prefix_ipv4 *dest;
if (! CHECK_FLAG (ifc->conf, ZEBRA_IFC_REAL))
return;
addr = (struct prefix_ipv4 *)ifc->address;
dest = (struct prefix_ipv4 *)ifc->destination;
memset (&p, 0, sizeof (struct prefix_ipv4));
p.family = AF_INET;
p.prefixlen = addr->prefixlen;
/* Point-to-point check. */
if (CONNECTED_POINTOPOINT_HOST(ifc))
p.prefix = dest->prefix;
else
p.prefix = addr->prefix;
/* Apply mask to the network. */
apply_mask_ipv4 (&p);
/* In case of connected address is 0.0.0.0/0 we treat it tunnel
address. */
if (prefix_ipv4_any (&p))
return;
rib_delete_ipv4 (ZEBRA_ROUTE_CONNECT, 0, &p, NULL, ifp->ifindex, 0);
rib_update ();
}
/* Called from if_up(). */
void
connected_up_ipv4 (struct interface *ifp, struct connected *ifc)
{
struct prefix_ipv4 p;
struct prefix_ipv4 *addr;
struct prefix_ipv4 *dest;
if (IS_ZEBRA_DEBUG_RIB)
zlog_debug ("%s: start", __func__);
/* if(product != NULL)*/
if(product != NULL && product->board_type != BOARD_IS_ACTIVE_MASTER)/*gjd : change for active master 在删除ip时，直连路由没删除，因为重复添加，导致refcnt不为0释放不掉*/
goto skip;
if(product != NULL && product->board_type == BOARD_IS_ACTIVE_MASTER &&CHECK_FLAG(ifp->if_scope, INTERFACE_LOCAL))
goto skip;/*local interface , skip the check the ifc->conf, because the ip address not install in the kernel .*/
if (! CHECK_FLAG (ifc->conf, ZEBRA_IFC_REAL))
return;
skip:
addr = (struct prefix_ipv4 *) ifc->address;
dest = (struct prefix_ipv4 *) ifc->destination;
memset (&p, 0, sizeof (struct prefix_ipv4));
p.family = AF_INET;
p.prefixlen = addr->prefixlen;
/* Point-to-point check. */
if (CONNECTED_POINTOPOINT_HOST(ifc))
p.prefix = dest->prefix;
else
p.prefix = addr->prefix;
/* Apply mask to the network. */
apply_mask_ipv4 (&p);
/* In case of connected address is 0.0.0.0/0 we treat it tunnel
address. */
if (prefix_ipv4_any (&p))
return;
rib_add_ipv4 (ZEBRA_ROUTE_CONNECT, 0, &p, NULL, ifp->ifindex, RT_TABLE_MAIN,
ifp->metric, 0);
if (IS_ZEBRA_DEBUG_RIB)
zlog_debug ("%s: goto rib_update ", __func__);
rib_update ();
}
void
bgp_connected_delete (struct connected *ifc)
{
struct prefix p;
struct prefix *addr;
struct interface *ifp;
struct bgp_node *rn;
struct bgp_connected_ref *bc;
ifp = ifc->ifp;
if (if_is_loopback (ifp))
return;
addr = ifc->address;
if (addr->family == AF_INET)
{
PREFIX_COPY_IPV4(&p, CONNECTED_PREFIX(ifc));
apply_mask_ipv4 ((struct prefix_ipv4 *) &p);
if (prefix_ipv4_any ((struct prefix_ipv4 *) &p))
return;
bgp_address_del (addr);
rn = bgp_node_lookup (bgp_connected_table[AFI_IP], &p);
if (! rn)
return;
bc = rn->info;
bc->refcnt--;
if (bc->refcnt == 0)
{
XFREE (MTYPE_BGP_CONN, bc);
rn->info = NULL;
}
bgp_unlock_node (rn);
bgp_unlock_node (rn);
}
#ifdef HAVE_IPV6
else if (addr->family == AF_INET6)
{
PREFIX_COPY_IPV6(&p, CONNECTED_PREFIX(ifc));
apply_mask_ipv6 ((struct prefix_ipv6 *) &p);
if (IN6_IS_ADDR_UNSPECIFIED (&p.u.prefix6))
return;
if (IN6_IS_ADDR_LINKLOCAL (&p.u.prefix6))
return;
rn = bgp_node_lookup (bgp_connected_table[AFI_IP6], (struct prefix *) &p);
if (! rn)
return;
bc = rn->info;
bc->refcnt--;
if (bc->refcnt == 0)
{
XFREE (MTYPE_BGP_CONN, bc);
rn->info = NULL;
}
bgp_unlock_node (rn);
bgp_unlock_node (rn);
}
#endif /* HAVE_IPV6 */
}
void
bgp_connected_add (struct connected *ifc)
{
struct prefix p;
struct prefix *addr;
struct interface *ifp;
struct bgp_node *rn;
struct bgp_connected_ref *bc;
ifp = ifc->ifp;
if (! ifp)
return;
if (if_is_loopback (ifp))
return;
addr = ifc->address;
if (addr->family == AF_INET)
{
PREFIX_COPY_IPV4(&p, CONNECTED_PREFIX(ifc));
apply_mask_ipv4 ((struct prefix_ipv4 *) &p);
if (prefix_ipv4_any ((struct prefix_ipv4 *) &p))
return;
bgp_address_add (addr);
rn = bgp_node_get (bgp_connected_table[AFI_IP], (struct prefix *) &p);
if (rn->info)
{
bc = rn->info;
bc->refcnt++;
}
else
{
bc = XCALLOC (MTYPE_BGP_CONN, sizeof (struct bgp_connected_ref));
bc->refcnt = 1;
rn->info = bc;
}
}
#ifdef HAVE_IPV6
else if (addr->family == AF_INET6)
{
PREFIX_COPY_IPV6(&p, CONNECTED_PREFIX(ifc));
apply_mask_ipv6 ((struct prefix_ipv6 *) &p);
if (IN6_IS_ADDR_UNSPECIFIED (&p.u.prefix6))
return;
if (IN6_IS_ADDR_LINKLOCAL (&p.u.prefix6))
return;
rn = bgp_node_get (bgp_connected_table[AFI_IP6], (struct prefix *) &p);
if (rn->info)
{
bc = rn->info;
bc->refcnt++;
}
else
{
bc = XCALLOC (MTYPE_BGP_CONN, sizeof (struct bgp_connected_ref));
bc->refcnt = 1;
rn->info = bc;
}
}
#endif /* HAVE_IPV6 */
}
void
connected_down_ipv4 (struct interface *ifp, struct connected *ifc)
{
struct prefix_ipv4 p;
struct prefix_ipv4 *addr;
struct prefix_ipv4 *dest;
if (IS_ZEBRA_DEBUG_RIB)
zlog_debug ("%s: start ", __func__);
/*gujd: 2012-10-19, pm 3:49. When vrrp use virtual IP address , destination is NULL, so can't return.*/
#if 0
if(!ifc || !ifc->address || !ifc->destination|| !ifc->ifp)
{
zlog_err("ifc(%p), ifc->address(%p), ifc->destination(%p).\n",
ifc,ifc->address,ifc->destination);
return;
}
#else
if(!ifc || !ifc->address || !ifc->ifp)
{
/*CID 11026 (#1 of 1): Dereference after null check (FORWARD_NULL)
4. var_deref_op: Dereferencing null pointer "ifc".
Make sure , here is bug. So changed.*/
/*zlog_err("ifc(%p), ifc->address(%p), ifc->ifp(%p).\n",
ifc,ifc->address,ifc->ifp);
return ;*/
if(!ifc)
{
zlog_err("%s: line %d, ifc is null.\n",__func__,__LINE__);
return ;
}
else
{
zlog_err("%s: line %d, ifc->address(%p), ifc->ifp(%p).\n",
__func__,__LINE__,ifc->address,ifc->ifp);
return ;
}
}
#endif
/* if(product != NULL)*/
if(product != NULL && product->board_type != BOARD_IS_ACTIVE_MASTER)/*gjd : change for active master 在删除ip时，直连路由没删除，因为重复添加，导致refcnt不为0释放不掉*/
goto skip;
if(product != NULL && product->board_type == BOARD_IS_ACTIVE_MASTER &&CHECK_FLAG(ifp->if_scope, INTERFACE_LOCAL))
goto skip;/*local interface , skip the check the ifc->conf, because the ip address not install in the kernel .*/
if (! CHECK_FLAG (ifc->conf, ZEBRA_IFC_REAL))
return;
skip:
addr = (struct prefix_ipv4 *)ifc->address;
dest = (struct prefix_ipv4 *)ifc->destination;
memset (&p, 0, sizeof (struct prefix_ipv4));
p.family = AF_INET;
p.prefixlen = addr->prefixlen;
/* Point-to-point check. */
if (CONNECTED_POINTOPOINT_HOST(ifc))
p.prefix = dest->prefix;
else
p.prefix = addr->prefix;
/* Apply mask to the network. */
apply_mask_ipv4 (&p);
/* In case of connected address is 0.0.0.0/0 we treat it tunnel
address. */
if (prefix_ipv4_any (&p))
return;
rib_delete_ipv4 (ZEBRA_ROUTE_CONNECT, 0, &p, NULL, ifp->ifindex, 0);
if (IS_ZEBRA_DEBUG_RIB)
zlog_debug ("%s: goto rib_update ", __func__);
rib_update ();
}