#include <vppinfra/mhash.h>
#include <vppinfra/md5.h>
#include <vnet/adj/adj.h>
+#include <vnet/adj/adj_mcast.h>
#include <vnet/fib/fib_table.h>
#include <vnet/fib/ip6_fib.h>
+#include <vnet/mfib/ip6_mfib.h>
/**
* @file
u32 seed;
u64 randomizer;
int ref_count;
- adj_index_t all_nodes_adj_index;
- adj_index_t all_routers_adj_index;
- adj_index_t all_mldv2_routers_adj_index;
+ adj_index_t mcast_adj_index;
/* timing information */
#define DEF_MAX_RADV_INTERVAL 200
nbr = ip6_nd_find (sw_if_index, &adj->sub_type.nbr.next_hop.ip6);
- if (NULL != nbr)
- {
- adj_nbr_walk_nh6 (sw_if_index, &nbr->key.ip6_address,
- ip6_nd_mk_complete_walk, nbr);
- }
- else
+ switch (adj->lookup_next_index)
{
+ case IP_LOOKUP_NEXT_ARP:
+ case IP_LOOKUP_NEXT_GLEAN:
+ if (NULL != nbr)
+ {
+ adj_nbr_walk_nh6 (sw_if_index, &nbr->key.ip6_address,
+ ip6_nd_mk_complete_walk, nbr);
+ }
+ else
+ {
+ /*
+ * no matching ND entry.
+ * construct the rewrite required to for an ND packet, and stick
+ * that in the adj's pipe to smoke.
+ */
+ adj_nbr_update_rewrite (ai,
+ ADJ_NBR_REWRITE_FLAG_INCOMPLETE,
+ ethernet_build_rewrite (vnm,
+ sw_if_index,
+ VNET_LINK_IP6,
+ VNET_REWRITE_FOR_SW_INTERFACE_ADDRESS_BROADCAST));
+
+ /*
+ * since the FIB has added this adj for a route, it makes sense it may
+ * want to forward traffic sometime soon. Let's send a speculative ND.
+ * just one. If we were to do periodically that wouldn't be bad either,
+ * but that's more code than i'm prepared to write at this time for
+ * relatively little reward.
+ */
+ ip6_nbr_probe (adj);
+ }
+ break;
+ case IP_LOOKUP_NEXT_MCAST:
/*
- * no matching ND entry.
- * construct the rewrite required to for an ND packet, and stick
- * that in the adj's pipe to smoke.
+ * Construct a partial rewrite from the known ethernet mcast dest MAC
*/
- adj_nbr_update_rewrite (ai,
- ADJ_NBR_REWRITE_FLAG_INCOMPLETE,
- ethernet_build_rewrite (vnm,
- sw_if_index,
- VNET_LINK_IP6,
- VNET_REWRITE_FOR_SW_INTERFACE_ADDRESS_BROADCAST));
+ adj_mcast_update_rewrite
+ (ai,
+ ethernet_build_rewrite (vnm,
+ sw_if_index,
+ adj->ia_link,
+ ethernet_ip6_mcast_dst_addr ()));
/*
- * since the FIB has added this adj for a route, it makes sense it may
- * want to forward traffic sometime soon. Let's send a speculative ND.
- * just one. If we were to do periodically that wouldn't be bad either,
- * but that's more code than i'm prepared to write at this time for
- * relatively little reward.
+ * Complete the remaining fields of the adj's rewrite to direct the
+ * complete of the rewrite at switch time by copying in the IP
+ * dst address's bytes.
+ * Ofset is 12 bytes from the end of the MAC header - which is 2
+ * bytes into the desintation address. And we write 4 bytes.
*/
- ip6_nbr_probe (adj);
+ adj->rewrite_header.dst_mcast_offset = 12;
+ adj->rewrite_header.dst_mcast_n_bytes = 4;
+
+ break;
+
+ case IP_LOOKUP_NEXT_DROP:
+ case IP_LOOKUP_NEXT_PUNT:
+ case IP_LOOKUP_NEXT_LOCAL:
+ case IP_LOOKUP_NEXT_REWRITE:
+ case IP_LOOKUP_NEXT_LOAD_BALANCE:
+ case IP_LOOKUP_NEXT_MIDCHAIN:
+ case IP_LOOKUP_NEXT_ICMP_ERROR:
+ case IP_LOOKUP_N_NEXT:
+ ASSERT (0);
+ break;
}
}
}
else
{
- adj_index0 = radv_info->all_nodes_adj_index;
+ adj_index0 = radv_info->mcast_adj_index;
if (adj_index0 == 0)
error0 = ICMP6_ERROR_DST_LOOKUP_MISS;
else
ip6_radv_prefix_t *p;
ip6_mldp_group_t *m;
- /* remove adjacencies */
- adj_unlock (a->all_nodes_adj_index);
- adj_unlock (a->all_routers_adj_index);
- adj_unlock (a->all_mldv2_routers_adj_index);
+ /* release the lock on the interface's mcast adj */
+ adj_unlock (a->mcast_adj_index);
/* clean up prefix_pool */
/* *INDENT-OFF* */
mhash_init (&a->address_to_mldp_index, sizeof (uword),
sizeof (ip6_address_t));
- {
- u8 link_layer_address[6] = { 0x33, 0x33, 0x00, 0x00, 0x00,
- IP6_MULTICAST_GROUP_ID_all_hosts
- };
-
- a->all_nodes_adj_index =
- adj_rewrite_add_and_lock (FIB_PROTOCOL_IP6, VNET_LINK_IP6,
- sw_if_index, link_layer_address);
- }
-
- {
- u8 link_layer_address[6] = { 0x33, 0x33, 0x00, 0x00, 0x00,
- IP6_MULTICAST_GROUP_ID_all_routers
- };
-
- a->all_routers_adj_index =
- adj_rewrite_add_and_lock (FIB_PROTOCOL_IP6, VNET_LINK_IP6,
- sw_if_index, link_layer_address);
- }
-
- {
- u8 link_layer_address[6] = { 0x33, 0x33, 0x00, 0x00, 0x00,
- IP6_MULTICAST_GROUP_ID_mldv2_routers
- };
-
- a->all_mldv2_routers_adj_index =
- adj_rewrite_add_and_lock (FIB_PROTOCOL_IP6,
- VNET_LINK_IP6,
- sw_if_index, link_layer_address);
- }
+ a->mcast_adj_index = adj_mcast_add_or_lock (FIB_PROTOCOL_IP6,
+ VNET_LINK_IP6,
+ sw_if_index);
/* add multicast groups we will always be reporting */
ip6_address_t addr;
vnet_buffer (b0)->sw_if_index[VLIB_RX] =
vnet_main.local_interface_sw_if_index;
- vnet_buffer (b0)->ip.adj_index[VLIB_TX] =
- radv_info->all_mldv2_routers_adj_index;
+ vnet_buffer (b0)->ip.adj_index[VLIB_TX] = radv_info->mcast_adj_index;
b0->flags |= VNET_BUFFER_LOCALLY_ORIGINATED;
- vlib_node_t *node = vlib_get_node_by_name (vm, (u8 *) "ip6-rewrite");
+ vlib_node_t *node = vlib_get_node_by_name (vm, (u8 *) "ip6-rewrite-mcast");
f = vlib_get_frame_to_node (vm, node->index);
to_next = vlib_frame_vector_args (f);
.n_next_nodes = ICMP6_ROUTER_SOLICITATION_N_NEXT,
.next_nodes = {
[ICMP6_ROUTER_SOLICITATION_NEXT_DROP] = "error-drop",
- [ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_RW] = "ip6-rewrite",
+ [ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_RW] = "ip6-rewrite-mcast",
[ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_TX] = "interface-output",
},
};
else if (unformat (line_input, "ra-lifetime"))
{
if (!unformat (line_input, "%d", &ra_lifetime))
- return (error = unformat_parse_error (line_input));
+ {
+ error = unformat_parse_error (line_input);
+ goto done;
+ }
use_lifetime = 1;
break;
}
{
if (!unformat
(line_input, "%d %d", &ra_initial_count, &ra_initial_interval))
- return (error = unformat_parse_error (line_input));
+ {
+ error = unformat_parse_error (line_input);
+ goto done;
+ }
break;
}
else if (unformat (line_input, "ra-interval"))
{
if (!unformat (line_input, "%d", &ra_max_interval))
- return (error = unformat_parse_error (line_input));
+ {
+ error = unformat_parse_error (line_input);
+ goto done;
+ }
if (!unformat (line_input, "%d", &ra_min_interval))
ra_min_interval = 0;
break;
}
else
- return (unformat_parse_error (line_input));
+ {
+ error = unformat_parse_error (line_input);
+ goto done;
+ }
}
if (add_radv_info)
else if (unformat (line_input, "no-onlink"))
no_onlink = 1;
else
- return (unformat_parse_error (line_input));
+ {
+ error = unformat_parse_error (line_input);
+ goto done;
+ }
}
ip6_neighbor_ra_prefix (vm, sw_if_index,
off_link, no_autoconfig, no_onlink, is_no);
}
+done:
unformat_free (line_input);
-done:
return error;
}
radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
/* check radv_info ref count for other ip6 addresses on this interface */
+ /* This implicitly excludes the link local address */
if (radv_info->ref_count == 0)
{
/* essentially "disables" ipv6 on this interface */
ip6_neighbor_sw_interface_add_del (vnm, sw_if_index,
0 /* is_add */ );
+ ip6_mfib_interface_enable_disable (sw_if_index, 0);
}
}
return error;
link_local_address.as_u8[8] &= 0xfd;
}
+ ip6_mfib_interface_enable_disable (sw_if_index, 1);
+
/* essentially "enables" ipv6 on this interface */
error = ip6_add_del_interface_address (vm, sw_if_index,
&link_local_address,
vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index,
sw_if_index, ~0);
ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index];
+
if (ri != ~0)
{
/* get radv_info */
if (!ip6_address_is_link_local_unicast (address))
radv_info->ref_count--;
}
+ /* Ensure that IPv6 is disabled, and LL removed after ref_count reaches 0 */
+ disable_ip6_interface (vm, sw_if_index);
}
}
Code Review / vpp.git / blobdiff