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-rw-r--r--src/vnet/adj/adj_nbr.c25
1 files changed, 24 insertions, 1 deletions
diff --git a/src/vnet/adj/adj_nbr.c b/src/vnet/adj/adj_nbr.c
index 921588a7ef7..811d0b8faa2 100644
--- a/src/vnet/adj/adj_nbr.c
+++ b/src/vnet/adj/adj_nbr.c
@@ -222,6 +222,27 @@ adj_nbr_alloc (fib_protocol_t nh_proto,
return (adj);
}
+void
+adj_nbr_set_mtu (adj_index_t adj_index, u16 mtu)
+{
+ ip_adjacency_t *adj;
+
+ ASSERT(ADJ_INDEX_INVALID != adj_index);
+
+ adj = adj_get(adj_index);
+
+ if (0 == mtu)
+ vnet_rewrite_update_mtu(vnet_get_main(), adj->ia_link,
+ &adj->rewrite_header);
+ else
+ {
+ vnet_rewrite_update_mtu(vnet_get_main(), adj->ia_link,
+ &adj->rewrite_header);
+ adj->rewrite_header.max_l3_packet_bytes =
+ clib_min (adj->rewrite_header.max_l3_packet_bytes, mtu);
+ }
+}
+
/*
* adj_nbr_add_or_lock
*
@@ -268,13 +289,13 @@ adj_nbr_add_or_lock (fib_protocol_t nh_proto,
* So ask the interface to do it.
*/
vnet_update_adjacency_for_sw_interface(vnm, sw_if_index, adj_index);
+ adj_delegate_adj_created(adj_get(adj_index));
}
else
{
adj_lock(adj_index);
}
- adj_delegate_adj_created(adj_get(adj_index));
return (adj_index);
}
@@ -1055,12 +1076,14 @@ const static dpo_vft_t adj_nbr_dpo_vft = {
.dv_format = format_adj_nbr,
.dv_mem_show = adj_mem_show,
.dv_get_urpf = adj_dpo_get_urpf,
+ .dv_get_mtu = adj_dpo_get_mtu,
};
const static dpo_vft_t adj_nbr_incompl_dpo_vft = {
.dv_lock = adj_dpo_lock,
.dv_unlock = adj_dpo_unlock,
.dv_format = format_adj_nbr_incomplete,
.dv_get_urpf = adj_dpo_get_urpf,
+ .dv_get_mtu = adj_dpo_get_mtu,
};
/**