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-rw-r--r--src/vnet/ip/ip4.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/vnet/ip/ip4.h b/src/vnet/ip/ip4.h
index bed552b982c..7a42510166f 100644
--- a/src/vnet/ip/ip4.h
+++ b/src/vnet/ip/ip4.h
@@ -410,6 +410,16 @@ vlib_buffer_push_ip4 (vlib_main_t * vm, vlib_buffer_t * b,
return ih;
}
+
+always_inline u32
+vlib_buffer_get_ip4_fib_index (vlib_buffer_t * b)
+{
+ u32 fib_index, sw_if_index;
+ sw_if_index = vnet_buffer (b)->sw_if_index[VLIB_RX];
+ fib_index = vnet_buffer (b)->sw_if_index[VLIB_TX];
+ return (fib_index == (u32) ~ 0) ?
+ vec_elt (ip4_main.fib_index_by_sw_if_index, sw_if_index) : fib_index;
+}
#endif /* included_ip_ip4_h */
/*