netdev - [PATCH net-next 26/27] net/hyperv: enable passing of VLAN.CFI bit

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

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <3042f5f59a80a79e4edd0b822e5c4d01b1db66e4.1481586602.git.mirq-linux@rere.qmqm.pl>
Date:   Tue, 13 Dec 2016 01:12:42 +0100 (CET)
From:   Michał Mirosław <mirq-linux@...e.qmqm.pl>
To:     netdev@...r.kernel.org
Cc:     "K. Y. Srinivasan" <kys@...rosoft.com> (maintainer:Hyper-V CORE AND
        DRIVERS),
        Haiyang Zhang <haiyangz@...rosoft.com> (maintainer:Hyper-V CORE AND
        DRIVERS),
        devel@...uxdriverproject.org (open list:Hyper-V CORE AND DRIVERS)
Subject: [PATCH net-next 26/27] net/hyperv: enable passing of VLAN.CFI bit

Signed-off-by: Michał Mirosław <mirq-linux@...e.qmqm.pl>
---
 drivers/net/hyperv/netvsc_drv.c   | 1 +
 drivers/net/hyperv/rndis_filter.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 6597d79..4e20f4c 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -441,6 +441,7 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
 		vlan = (struct ndis_pkt_8021q_info *)((void *)ppi +
 						ppi->ppi_offset);
 		vlan->vlanid = skb->vlan_tci & VLAN_VID_MASK;
+		vlan->cfi = !!(skb->vlan_tci & VLAN_CFI_MASK);
 		vlan->pri = (skb->vlan_tci & VLAN_PRIO_MASK) >>
 				VLAN_PRIO_SHIFT;
 	}
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index 7f7b410..9759d73 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -382,6 +382,7 @@ static int rndis_filter_receive_data(struct rndis_device *dev,
 	vlan = rndis_get_ppi(rndis_pkt, IEEE_8021Q_INFO);
 	if (vlan) {
 		vlan_tci = vlan->vlanid |
+			(vlan->cfi ? VLAN_CFI_MASK : 0) |
 			(vlan->pri << VLAN_PRIO_SHIFT);
 	}
 
-- 
2.10.2