summaryrefslogtreecommitdiffstats
path: root/src/vnet/ip/ip6_input.c
diff options
context:
space:
mode:
authorNeale Ranns <nranns@cisco.com>2016-11-22 17:07:28 +0000
committerDamjan Marion <dmarion.lists@gmail.com>2017-01-27 19:53:46 +0000
commit32e1c010b0c34fd0984f7fc45fae648a182025c5 (patch)
tree06a440bdc9dc039ad0dcf866acc9e10a6ea5e2e7 /src/vnet/ip/ip6_input.c
parent6f692d6e5a8ffc920a728372ef773199bc5466c0 (diff)
IP Multicast FIB (mfib)
- IPv[46] mfib tables with support for (*,G/m), (*,G) and (S,G) exact and longest prefix match - Replication represented via a new replicate DPO. - RPF configuration and data-plane checking - data-plane signals sent to listening control planes. The functions of multicast forwarding entries differ from their unicast conterparts, so we introduce a new mfib_table_t and mfib_entry_t objects. However, we re-use the fib_path_list to resolve and build the entry's output list. the fib_path_list provides the service to construct a replicate DPO for multicast. 'make tests' is added to with two new suites; TEST=mfib, this is invocation of the CLI command 'test mfib' which deals with many path add/remove, flag set/unset scenarios, TEST=ip-mcast, data-plane forwarding tests. Updated applications to use the new MIFB functions; - IPv6 NS/RA. - DHCPv6 unit tests for these are undated accordingly. Change-Id: I49ec37b01f1b170335a5697541c8fd30e6d3a961 Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/ip/ip6_input.c')
-rw-r--r--src/vnet/ip/ip6_input.c43
1 files changed, 34 insertions, 9 deletions
diff --git a/src/vnet/ip/ip6_input.c b/src/vnet/ip/ip6_input.c
index bbc2cebaa39..20306088611 100644
--- a/src/vnet/ip/ip6_input.c
+++ b/src/vnet/ip/ip6_input.c
@@ -64,6 +64,7 @@ typedef enum
{
IP6_INPUT_NEXT_DROP,
IP6_INPUT_NEXT_LOOKUP,
+ IP6_INPUT_NEXT_LOOKUP_MULTICAST,
IP6_INPUT_NEXT_ICMP_ERROR,
IP6_INPUT_N_NEXT,
} ip6_input_next_t;
@@ -142,12 +143,27 @@ ip6_input (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
sw_if_index0 = vnet_buffer (p0)->sw_if_index[VLIB_RX];
sw_if_index1 = vnet_buffer (p1)->sw_if_index[VLIB_RX];
- arc0 =
- ip6_address_is_multicast (&ip0->dst_address) ?
- lm->mcast_feature_arc_index : lm->ucast_feature_arc_index;
- arc1 =
- ip6_address_is_multicast (&ip1->dst_address) ?
- lm->mcast_feature_arc_index : lm->ucast_feature_arc_index;
+ if (PREDICT_FALSE (ip6_address_is_multicast (&ip0->dst_address)))
+ {
+ arc0 = lm->mcast_feature_arc_index;
+ next0 = IP6_INPUT_NEXT_LOOKUP_MULTICAST;
+ }
+ else
+ {
+ arc0 = lm->ucast_feature_arc_index;
+ next0 = IP6_INPUT_NEXT_LOOKUP;
+ }
+
+ if (PREDICT_FALSE (ip6_address_is_multicast (&ip1->dst_address)))
+ {
+ arc1 = lm->mcast_feature_arc_index;
+ next1 = IP6_INPUT_NEXT_LOOKUP_MULTICAST;
+ }
+ else
+ {
+ arc1 = lm->ucast_feature_arc_index;
+ next1 = IP6_INPUT_NEXT_LOOKUP;
+ }
vnet_buffer (p0)->ip.adj_index[VLIB_RX] = ~0;
vnet_buffer (p1)->ip.adj_index[VLIB_RX] = ~0;
@@ -240,9 +256,17 @@ ip6_input (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
ip0 = vlib_buffer_get_current (p0);
sw_if_index0 = vnet_buffer (p0)->sw_if_index[VLIB_RX];
- arc0 =
- ip6_address_is_multicast (&ip0->dst_address) ?
- lm->mcast_feature_arc_index : lm->ucast_feature_arc_index;
+ if (PREDICT_FALSE (ip6_address_is_multicast (&ip0->dst_address)))
+ {
+ arc0 = lm->mcast_feature_arc_index;
+ next0 = IP6_INPUT_NEXT_LOOKUP_MULTICAST;
+ }
+ else
+ {
+ arc0 = lm->ucast_feature_arc_index;
+ next0 = IP6_INPUT_NEXT_LOOKUP;
+ }
+
vnet_buffer (p0)->ip.adj_index[VLIB_RX] = ~0;
vnet_feature_arc_start (arc0, sw_if_index0, &next0, p0);
@@ -313,6 +337,7 @@ VLIB_REGISTER_NODE (ip6_input_node) = {
[IP6_INPUT_NEXT_DROP] = "error-drop",
[IP6_INPUT_NEXT_LOOKUP] = "ip6-lookup",
[IP6_INPUT_NEXT_ICMP_ERROR] = "ip6-icmp-error",
+ [IP6_INPUT_NEXT_LOOKUP_MULTICAST] = "ip6-mfib-forward-lookup",
},
.format_buffer = format_ip6_header,