X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_lpm%2Frte_lpm6.c;h=5610ebc4c76949f3ff1f7e79a56dc72f8019fc7c;hb=61abddd3a9b64de429613bba8aeb3179a2ecc998;hp=56c74a1f46a7dd510122569a0418d96d1b66c980;hpb=3031749c2df04a63cdcef186dcce3781e61436e8;p=dpdk.git

diff --git a/lib/librte_lpm/rte_lpm6.c b/lib/librte_lpm/rte_lpm6.c
index 56c74a1f46..5610ebc4c7 100644
--- a/lib/librte_lpm/rte_lpm6.c
+++ b/lib/librte_lpm/rte_lpm6.c
@@ -169,7 +169,7 @@ rte_lpm6_create(const char *name, int socket_id,
 		return NULL;
 	}
 
-	rte_snprintf(mem_name, sizeof(mem_name), "LPM_%s", name);
+	snprintf(mem_name, sizeof(mem_name), "LPM_%s", name);
 
 	/* Determine the amount of memory to allocate. */
 	mem_size = sizeof(*lpm) + (sizeof(lpm->tbl8[0]) *
@@ -207,7 +207,7 @@ rte_lpm6_create(const char *name, int socket_id,
 	/* Save user arguments. */
 	lpm->max_rules = config->max_rules;
 	lpm->number_tbl8s = config->number_tbl8s;
-	rte_snprintf(lpm->name, sizeof(lpm->name), "%s", name);
+	snprintf(lpm->name, sizeof(lpm->name), "%s", name);
 
 	TAILQ_INSERT_TAIL(lpm_list, lpm, next);
 
@@ -663,6 +663,37 @@ rule_find(struct rte_lpm6 *lpm, uint8_t *ip, uint8_t depth)
 	return -ENOENT;
 }
 
+/*
+ * 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;
+}
+
 /*
  * Delete a rule from the rule table.
  * NOTE: Valid range for depth parameter is 1 .. 128 inclusive.