+/*
+ * Look for a rule in the high-level rules table
+ */
+int
+rte_lpm6_is_rule_present(struct rte_lpm6 *lpm, uint8_t *ip, uint8_t depth,
+uint8_t *next_hop)
+{
+ uint8_t ip_masked[RTE_LPM6_IPV6_ADDR_SIZE];
+ int32_t rule_index;
+
+ /* Check user arguments. */
+ if ((lpm == NULL) || next_hop == NULL || ip == NULL ||
+ (depth < 1) || (depth > RTE_LPM6_MAX_DEPTH))
+ return -EINVAL;
+
+ /* Copy the IP and mask it to avoid modifying user's input data. */
+ memcpy(ip_masked, ip, RTE_LPM6_IPV6_ADDR_SIZE);
+ mask_ip(ip_masked, depth);
+
+ /* Look for the rule using rule_find. */
+ rule_index = rule_find(lpm, ip_masked, depth);
+
+ if (rule_index >= 0) {
+ *next_hop = lpm->rules_tbl[rule_index].next_hop;
+ return 1;
+ }
+
+ /* If rule is not found return 0. */
+ return 0;
+}
+