From: Igor Ryzhov <iryzhov@nfware.com>
To: dev@dpdk.org
Cc: Igor Ryzhov <iryzhov@nfware.com>
Subject: [dpdk-dev] [PATCH] lpm: fix overflow issue
Date: Fri, 20 Feb 2015 16:16:46 +0300 [thread overview]
Message-ID: <1424438206-29526-1-git-send-email-iryzhov@nfware.com> (raw)
LPM table overflow may occur if table is full and added rule has the biggest depth that already have some rules.
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
---
lib/librte_lpm/rte_lpm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/lib/librte_lpm/rte_lpm.c b/lib/librte_lpm/rte_lpm.c
index 983e04b..cc51210 100644
--- a/lib/librte_lpm/rte_lpm.c
+++ b/lib/librte_lpm/rte_lpm.c
@@ -298,6 +298,9 @@ rule_add(struct rte_lpm *lpm, uint32_t ip_masked, uint8_t depth,
return rule_index;
}
}
+
+ if (rule_index == lpm->max_rules)
+ return -ENOSPC;
} else {
/* Calculate the position in which the rule will be stored. */
rule_index = 0;
--
1.9.3 (Apple Git-50)
next reply other threads:[~2015-02-20 13:17 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-20 13:16 Igor Ryzhov [this message]
2015-02-21 22:56 ` Igor Ryzhov
2015-02-22 18:40 ` Richardson, Bruce
2015-02-22 18:47 ` Igor Ryzhov
2015-02-22 20:29 ` Bruce Richardson
2015-02-24 1:09 ` Thomas Monjalon
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