* [dpdk-dev] [RFC] ethdev: check for invalid device name
@ 2019-03-06 17:43 Stephen Hemminger
2019-03-11 10:15 ` Andrew Rybchenko
0 siblings, 1 reply; 2+ messages in thread
From: Stephen Hemminger @ 2019-03-06 17:43 UTC (permalink / raw)
To: dev; +Cc: Stephen Hemminger
Do not allow creating a ethernet device with a name over the
allowed maximum (or 0 length).
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
lib/librte_ethdev/rte_ethdev.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c
index 85c1794968dd..0b81980ff71c 100644
--- a/lib/librte_ethdev/rte_ethdev.c
+++ b/lib/librte_ethdev/rte_ethdev.c
@@ -439,6 +439,16 @@ rte_eth_dev_allocate(const char *name)
uint16_t port_id;
struct rte_eth_dev *eth_dev = NULL;
+ if (*name) {
+ RTE_ETHDEV_LOG(ERR, "Zero length Ethernet device name\n");
+ return NULL;
+ }
+
+ if (strnlen(name, RTE_ETH_NAME_MAX_LEN) >= RTE_ETH_NAME_MAX_LEN) {
+ RTE_ETHDEV_LOG(ERR, "Ethernet device name is too long\n");
+ return NULL;
+ }
+
rte_eth_dev_shared_data_prepare();
/* Synchronize port creation between primary and secondary threads. */
--
2.17.1
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [dpdk-dev] [RFC] ethdev: check for invalid device name
2019-03-06 17:43 [dpdk-dev] [RFC] ethdev: check for invalid device name Stephen Hemminger
@ 2019-03-11 10:15 ` Andrew Rybchenko
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Rybchenko @ 2019-03-11 10:15 UTC (permalink / raw)
To: Stephen Hemminger, dev
On 3/6/19 8:43 PM, Stephen Hemminger wrote:
> Do not allow creating a ethernet device with a name over the
> allowed maximum (or 0 length).
>
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
^ permalink raw reply [flat|nested] 2+ messages in thread
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