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From: Stephen Hemminger <stephen@networkplumber.org>
To: dev@dpdk.org
Cc: Stephen Hemminger <stephen@networkplumber.org>
Subject: [dpdk-dev] [PATCH 2/6] net/tap: allow full length names
Date: Fri, 11 Jan 2019 10:06:55 -0800	[thread overview]
Message-ID: <20190111180659.5972-3-stephen@networkplumber.org> (raw)
In-Reply-To: <20190111180659.5972-1-stephen@networkplumber.org>

The code for set_interface_name was incorrectly assuming that
space for null byte was necessary with snprintf/strlcpy.

Fixes: 02f96a0a82d1 ("net/tap: add TUN/TAP device PMD")
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/tap/rte_eth_tap.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/tap/rte_eth_tap.c b/drivers/net/tap/rte_eth_tap.c
index 1c00681ba0eb..d7f77d664502 100644
--- a/drivers/net/tap/rte_eth_tap.c
+++ b/drivers/net/tap/rte_eth_tap.c
@@ -1892,10 +1892,10 @@ set_interface_name(const char *key __rte_unused,
 	char *name = (char *)extra_args;
 
 	if (value)
-		strlcpy(name, value, RTE_ETH_NAME_MAX_LEN - 1);
+		strlcpy(name, value, RTE_ETH_NAME_MAX_LEN);
 	else
-		snprintf(name, RTE_ETH_NAME_MAX_LEN - 1, "%s%d",
-			 DEFAULT_TAP_NAME, (tap_unit - 1));
+		snprintf(name, RTE_ETH_NAME_MAX_LEN, "%s%d",
+			 DEFAULT_TAP_NAME, tun_unit - 1);
 
 	return 0;
 }
-- 
2.20.1

  parent reply	other threads:[~2019-01-11 18:07 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-11 18:06 [dpdk-dev] [PATCH 0/6] net/tap: fixes and cleanups Stephen Hemminger
2019-01-11 18:06 ` [dpdk-dev] [PATCH 1/6] net/tap: use strlcpy for interface name Stephen Hemminger
2019-01-11 18:06 ` Stephen Hemminger [this message]
2019-01-11 19:32   ` [dpdk-dev] [PATCH 2/6] net/tap: allow full length names Wiles, Keith
2019-01-11 19:48     ` Stephen Hemminger
2019-01-11 19:49       ` Wiles, Keith
2019-01-11 18:06 ` [dpdk-dev] [PATCH 3/6] net/tap: check interface name in kvargs Stephen Hemminger
2019-01-11 19:37   ` Wiles, Keith
2019-01-11 19:49     ` Stephen Hemminger
2019-01-11 19:50       ` Wiles, Keith
2019-01-15  2:01         ` Thomas Monjalon
2019-01-11 22:20     ` Luse, Paul E
2019-01-11 18:06 ` [dpdk-dev] [PATCH 4/6] net/tap: lower the priority of log messages Stephen Hemminger
2019-01-11 18:06 ` [dpdk-dev] [PATCH 5/6] net/tap: let kernel choose tun device name Stephen Hemminger
2019-01-11 19:43   ` Wiles, Keith
2019-01-11 18:06 ` [dpdk-dev] [PATCH 6/6] net/tap: get rid of global tuntap_name Stephen Hemminger
2019-01-11 19:47 ` [dpdk-dev] [PATCH 0/6] net/tap: fixes and cleanups Wiles, Keith
2019-01-11 20:35 ` [dpdk-dev] [PATCH v2 " Stephen Hemminger
2019-01-11 20:35   ` [dpdk-dev] [PATCH v2 1/7] net/tap: use strlcpy for interface name Stephen Hemminger
2019-01-11 20:35   ` [dpdk-dev] [PATCH v2 2/7] net/tap: allow full length names Stephen Hemminger
2019-01-11 20:35   ` [dpdk-dev] [PATCH v2 3/7] net/tap: check interface name in kvargs Stephen Hemminger
2019-01-11 20:35   ` [dpdk-dev] [PATCH v2 4/7] net/tap: lower the priority of log messages Stephen Hemminger
2019-01-11 20:35   ` [dpdk-dev] [PATCH v2 5/7] net/tap: let kernel choose tun device name Stephen Hemminger
2019-01-11 20:35   ` [dpdk-dev] [PATCH v2 6/7] net/tap: get rid of global tuntap_name Stephen Hemminger
2019-01-11 20:35   ` [dpdk-dev] [PATCH v2 7/7] net/tap: don't print pointer in info message Stephen Hemminger
2019-01-14 14:10     ` Ferruh Yigit
2019-01-14 15:07     ` Wiles, Keith
2019-01-14 14:10   ` [dpdk-dev] [PATCH v2 0/6] net/tap: fixes and cleanups Ferruh Yigit

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