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-rw-r--r--src/vnet/ip/ip6_forward.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/src/vnet/ip/ip6_forward.c b/src/vnet/ip/ip6_forward.c
index ae5c19b6966..c15683e2390 100644
--- a/src/vnet/ip/ip6_forward.c
+++ b/src/vnet/ip/ip6_forward.c
@@ -42,6 +42,7 @@
#include <vnet/ethernet/ethernet.h> /* for ethernet_header_t */
#include <vnet/srp/srp.h> /* for srp_hw_interface_class */
#include <vppinfra/cache.h>
+#include <vnet/fib/fib_urpf_list.h> /* for FIB uRPF check */
#include <vnet/fib/ip6_fib.h>
#include <vnet/mfib/ip6_mfib.h>
#include <vnet/dpo/load_balance.h>
@@ -1316,6 +1317,25 @@ ip6_locate_header (vlib_buffer_t * p0,
return (next_proto);
}
+/**
+ * @brief returns number of links on which src is reachable.
+ */
+always_inline int
+ip6_urpf_loose_check (ip6_main_t * im, vlib_buffer_t * b, ip6_header_t * i)
+{
+ const load_balance_t *lb0;
+ index_t lbi;
+
+ lbi = ip6_fib_table_fwding_lookup_with_if_index (im,
+ vnet_buffer
+ (b)->sw_if_index[VLIB_RX],
+ &i->src_address);
+
+ lb0 = load_balance_get (lbi);
+
+ return (fib_urpf_check_size (lb0->lb_urpf));
+}
+
static uword
ip6_local (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
{