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authorNeale Ranns <nranns@cisco.com>2017-10-03 08:20:21 -0700
committerDamjan Marion <dmarion.lists@gmail.com>2017-10-05 09:50:26 +0000
commit6f6311560380d0e992f710558e213df1b098ef94 (patch)
tree237e34a2165ed5d2fc0848a1daec457ce57acc3e /src/vnet/ip/ip_api.c
parentd3c008d108aa2187d1a2afe2833b4de25ca2c2ab (diff)
Distributed Virtual Router Support
A distributed virtual router works by attmpeting to switch a packet, but on failing to find a local consumer (i.e. the packet is destined to a locally attached host) then the packet is sent unmodified 'upstream' to where the rest of the 'distributed' router is present. When L3 switching a packet this means the L2 header must not be modifed. This patch adds a 'l2-bridge' object to the L3 FIB which re-injects packets from the L3 path back into the L2 path - use with extreme caution. Change-Id: I069724eb45956647d7980cbe40a80a788ee6ee82 Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/ip/ip_api.c')
-rw-r--r--src/vnet/ip/ip_api.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/vnet/ip/ip_api.c b/src/vnet/ip/ip_api.c
index 6981c84cb0e..c34ec57dc84 100644
--- a/src/vnet/ip/ip_api.c
+++ b/src/vnet/ip/ip_api.c
@@ -769,6 +769,7 @@ add_del_route_t_handler (u8 is_multipath,
u8 is_resolve_attached,
u8 is_interface_rx,
u8 is_rpf_id,
+ u8 is_l2_bridged,
u32 fib_index,
const fib_prefix_t * prefix,
dpo_proto_t next_hop_proto,
@@ -806,6 +807,8 @@ add_del_route_t_handler (u8 is_multipath,
path.frp_local_label = next_hop_via_label;
path.frp_eos = MPLS_NON_EOS;
}
+ if (is_l2_bridged)
+ path.frp_proto = DPO_PROTO_ETHERNET;
if (is_resolve_host)
path_flags |= FIB_ROUTE_PATH_RESOLVE_VIA_HOST;
if (is_resolve_attached)
@@ -1043,6 +1046,7 @@ ip4_add_del_route_t_handler (vl_api_ip_add_del_route_t * mp)
mp->classify_table_index,
mp->is_resolve_host,
mp->is_resolve_attached, 0, 0,
+ mp->is_l2_bridged,
fib_index, &pfx, DPO_PROTO_IP4,
&nh,
ntohl (mp->next_hop_sw_if_index),
@@ -1102,6 +1106,7 @@ ip6_add_del_route_t_handler (vl_api_ip_add_del_route_t * mp)
mp->classify_table_index,
mp->is_resolve_host,
mp->is_resolve_attached, 0, 0,
+ mp->is_l2_bridged,
fib_index, &pfx, DPO_PROTO_IP6,
&nh, ntohl (mp->next_hop_sw_if_index),
next_hop_fib_index,