netdev - [PATCH net-next v2 1/2] bridge: new attribute and flags to represent vlan info lists and ranges

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Message-Id: <1420044533-16963-2-git-send-email-roopa@cumulusnetworks.com>
Date:	Wed, 31 Dec 2014 08:48:52 -0800
From:	roopa@...ulusnetworks.com
To:	netdev@...r.kernel.org, hemminger@...tta.com, vyasevic@...hat.com
Cc:	sfeldma@...il.com, wkok@...ulusnetworks.com,
	Roopa Prabhu <roopa@...ulusnetworks.com>
Subject: [PATCH net-next v2 1/2] bridge: new attribute and flags to represent vlan info lists and ranges

From: Roopa Prabhu <roopa@...ulusnetworks.com>

This patch adds (as suggested by scott feldman),
        - new netlink attribute IFLA_BRIDGE_VLAN_INFO_LIST to represent
          vlan list
        - And bridge_vlan_info flags BRIDGE_VLAN_INFO_RANGE_START and
          BRIDGE_VLAN_INFO_RANGE_END to indicate start and end of vlan range

Signed-off-by: Roopa Prabhu <roopa@...ulusnetworks.com>
---
 include/uapi/linux/if_bridge.h |    4 ++++
 net/bridge/br_netlink.c        |    1 +
 2 files changed, 5 insertions(+)

diff --git a/include/uapi/linux/if_bridge.h b/include/uapi/linux/if_bridge.h
index b03ee8f..fa468aa 100644
--- a/include/uapi/linux/if_bridge.h
+++ b/include/uapi/linux/if_bridge.h
@@ -112,12 +112,14 @@ struct __fdb_entry {
  *     [IFLA_BRIDGE_FLAGS]
  *     [IFLA_BRIDGE_MODE]
  *     [IFLA_BRIDGE_VLAN_INFO]
+ *     [IFLA_BRIDGE_VLAN_INFO_LIST]
  * }
  */
 enum {
 	IFLA_BRIDGE_FLAGS,
 	IFLA_BRIDGE_MODE,
 	IFLA_BRIDGE_VLAN_INFO,
+	IFLA_BRIDGE_VLAN_INFO_LIST,
 	__IFLA_BRIDGE_MAX,
 };
 #define IFLA_BRIDGE_MAX (__IFLA_BRIDGE_MAX - 1)
@@ -125,6 +127,8 @@ enum {
 #define BRIDGE_VLAN_INFO_MASTER	(1<<0)	/* Operate on Bridge device as well */
 #define BRIDGE_VLAN_INFO_PVID	(1<<1)	/* VLAN is PVID, ingress untagged */
 #define BRIDGE_VLAN_INFO_UNTAGGED	(1<<2)	/* VLAN egresses untagged */
+#define BRIDGE_VLAN_INFO_RANGE_START	(1<<3) /* VLAN is start of vlan range */
+#define BRIDGE_VLAN_INFO_RANGE_END	(1<<4) /* VLAN is end of vlan range */
 
 struct bridge_vlan_info {
 	__u16 flags;
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 9f5eb55..492ef6a 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -223,6 +223,7 @@ static const struct nla_policy ifla_br_policy[IFLA_MAX+1] = {
 	[IFLA_BRIDGE_MODE]	= { .type = NLA_U16 },
 	[IFLA_BRIDGE_VLAN_INFO]	= { .type = NLA_BINARY,
 				    .len = sizeof(struct bridge_vlan_info), },
+	[IFLA_BRIDGE_VLAN_INFO_LIST] = { .type = NLA_NESTED, },
 };
 
 static int br_afspec(struct net_bridge *br,
-- 
1.7.10.4

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