#include <vnet/ip/format.h>
#include <vnet/fib/fib_entry.h>
#include <vnet/fib/fib_table.h>
+#include <vnet/fib/fib_urpf_list.h>
#include <vnet/ip/lookup.h>
#include <vnet/dpo/load_balance.h>
void *ctx);
/**
- * @biref return the DPO that the LB stacks on.
+ * @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));
+}
+
+/**
+ * @brief return the DPO that the LB stacks on.
*/
always_inline u32
ip6_src_lookup_for_packet (ip6_main_t * im,
type0 != IP_BUILTIN_PROTOCOL_ICMP &&
!ip6_address_is_link_local_unicast (&ip0->src_address))
{
- u32 src_adj_index0 = ip6_src_lookup_for_packet (im, p0, ip0);
- error0 = (ADJ_INDEX_INVALID == src_adj_index0
+ error0 = (!ip6_urpf_loose_check (im, p0, ip0)
? IP6_ERROR_SRC_LOOKUP_MISS : error0);
}
if (error1 == IP6_ERROR_UNKNOWN_PROTOCOL &&
type1 != IP_BUILTIN_PROTOCOL_ICMP &&
!ip6_address_is_link_local_unicast (&ip1->src_address))
{
- u32 src_adj_index1 = ip6_src_lookup_for_packet (im, p1, ip1);
- error1 = (ADJ_INDEX_INVALID == src_adj_index1
+ error1 = (!ip6_urpf_loose_check (im, p1, ip1)
? IP6_ERROR_SRC_LOOKUP_MISS : error1);
}
type0 != IP_BUILTIN_PROTOCOL_ICMP &&
!ip6_address_is_link_local_unicast (&ip0->src_address))
{
- u32 src_adj_index0 = ip6_src_lookup_for_packet (im, p0, ip0);
- error0 = (ADJ_INDEX_INVALID == src_adj_index0
+ error0 = (!ip6_urpf_loose_check (im, p0, ip0)
? IP6_ERROR_SRC_LOOKUP_MISS : error0);
}