fib: fix load-balance and replicate dpos buckets overflow

[vpp.git] / src / vnet / dpo / replicate_dpo.h

diff --git a/src/vnet/dpo/replicate_dpo.h b/src/vnet/dpo/replicate_dpo.h
index 908c20c..d21f52a 100644 (file)
--- a/src/vnet/dpo/replicate_dpo.h
+++ b/src/vnet/dpo/replicate_dpo.h
@@ -40,6 +40,12 @@ typedef struct replicate_main_t_
 
 extern replicate_main_t replicate_main;
 
+/**
+ * The number of buckets that a replicate object can have
+ * This must not overflow the rep_n_buckets field
+ */
+#define REP_MAX_BUCKETS 1024
+
 /**
  * The number of buckets that a load-balance object can have and still
  * fit in one cache-line
@@ -108,6 +114,8 @@ typedef struct replicate_t_ {
 
 STATIC_ASSERT(sizeof(replicate_t) <= CLIB_CACHE_LINE_BYTES,
              "A replicate object size exceeds one cacheline");
+STATIC_ASSERT (REP_MAX_BUCKETS <= CLIB_U16_MAX,
+              "Too many buckets for replicate object");
 
 /**
  * Flags controlling load-balance formatting/display