| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Fri, 30 Oct 2015 13:14:04 +0100
From: Stefan Sørensen
<stefan.sorensen@...ctralink.com>
To: <davem@...emloft.net>
CC: <netdev@...r.kernel.org>, <richardcochran@...il.com>,
Stefan Sørensen
<stefan.sorensen@...ctralink.com>
Subject: [PATCH net-next 5/5] dp83640: Only wait for timestamps for packets with timestamping enabled.
In the packet timestamping function, check that the ptp version and
protocol of the packet matches what we have configured the hardware to
actually generate timestamps for, before looking/waiting for a timestamp.
Signed-off-by: Stefan Sørensen <stefan.sorensen@...ctralink.com>
---
drivers/net/phy/dp83640.c | 25 +++++++++++++------------
1 file changed, 13 insertions(+), 12 deletions(-)
diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c
index c1f70b7..30bfeb1 100644
--- a/drivers/net/phy/dp83640.c
+++ b/drivers/net/phy/dp83640.c
@@ -37,8 +37,6 @@
#define DP83640_PHY_ID 0x20005ce1
#define PAGESEL 0x13
-#define LAYER4 0x02
-#define LAYER2 0x01
#define MAX_RXTS 64
#define N_EXT_TS 6
#define N_PER_OUT 7
@@ -1292,29 +1290,29 @@ static int dp83640_hwtstamp(struct phy_device *phydev, struct ifreq *ifr)
case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
dp83640->hwts_rx_en = 1;
- dp83640->layer = LAYER4;
- dp83640->version = 1;
+ dp83640->layer = PTP_CLASS_L4;
+ dp83640->version = PTP_CLASS_V1;
break;
case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
dp83640->hwts_rx_en = 1;
- dp83640->layer = LAYER4;
- dp83640->version = 2;
+ dp83640->layer = PTP_CLASS_L4;
+ dp83640->version = PTP_CLASS_V2;
break;
case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
dp83640->hwts_rx_en = 1;
- dp83640->layer = LAYER2;
- dp83640->version = 2;
+ dp83640->layer = PTP_CLASS_L2;
+ dp83640->version = PTP_CLASS_V2;
break;
case HWTSTAMP_FILTER_PTP_V2_EVENT:
case HWTSTAMP_FILTER_PTP_V2_SYNC:
case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
dp83640->hwts_rx_en = 1;
- dp83640->layer = LAYER4|LAYER2;
- dp83640->version = 2;
+ dp83640->layer = PTP_CLASS_L4 | PTP_CLASS_L2;
+ dp83640->version = PTP_CLASS_V2;
break;
default:
return -ERANGE;
@@ -1323,11 +1321,11 @@ static int dp83640_hwtstamp(struct phy_device *phydev, struct ifreq *ifr)
txcfg0 = (dp83640->version & TX_PTP_VER_MASK) << TX_PTP_VER_SHIFT;
rxcfg0 = (dp83640->version & TX_PTP_VER_MASK) << TX_PTP_VER_SHIFT;
- if (dp83640->layer & LAYER2) {
+ if (dp83640->layer & PTP_CLASS_L2) {
txcfg0 |= TX_L2_EN;
rxcfg0 |= RX_L2_EN;
}
- if (dp83640->layer & LAYER4) {
+ if (dp83640->layer & PTP_CLASS_L4) {
txcfg0 |= TX_IPV6_EN | TX_IPV4_EN;
rxcfg0 |= RX_IPV6_EN | RX_IPV4_EN;
}
@@ -1393,6 +1391,9 @@ static bool dp83640_rxtstamp(struct phy_device *phydev,
if (!dp83640->hwts_rx_en)
return false;
+ if ((type & dp83640->version) == 0 || (type & dp83640->layer) == 0)
+ return false;
+
spin_lock_irqsave(&dp83640->rx_lock, flags);
prune_rx_ts(dp83640);
list_for_each_safe(this, next, &dp83640->rxts) {
--
2.5.0
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists