netdev - [PATCH net-next V10 2/4] General check for vlan ethernet types

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: <1433267444-26025-3-git-send-email-thomasfherbert@gmail.com>
Date:	Tue,  2 Jun 2015 13:50:42 -0400
From:	Thomas F Herbert <thomasfherbert@...il.com>
To:	netdev@...r.kernel.org, pshelar@...ira.com
Cc:	therbert@...hat.com, dev@...nvswitch.org,
	Thomas F Herbert <thomasfherbert@...il.com>
Subject: [PATCH net-next V10 2/4] General check for vlan ethernet types

This patch adds a function to check for vlan ethernet types. There is a
use case in openvswitch and it should be useful elsewhere.

Signed-off-by: Thomas F Herbert <thomasfherbert@...il.com>
---
 include/linux/if_vlan.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index 920e445..3713454 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -627,5 +627,14 @@ static inline netdev_features_t vlan_features_check(const struct sk_buff *skb,
 
 	return features;
 }
+/**
+ * Check for legal valid vlan ether type.
+ */
+static inline bool eth_type_vlan(__be16 ethertype)
+{
+	if (ethertype == htons(ETH_P_8021Q) || ethertype == htons(ETH_P_8021AD))
+		return true;
+	return false;
+}
 
 #endif /* !(_LINUX_IF_VLAN_H_) */
-- 
2.1.0

--
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