From: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Date: Fri, 7 Aug 2015 16:40:45 +0000 (+0300)
Subject: bridge: netlink: add support for vlan_filtering attribute
X-Git-Tag: omap-for-v4.3/fixes-rc1~110^2~203
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a7854037da006a7472c48773e3190db55217ec9b;p=pandora-kernel.git

bridge: netlink: add support for vlan_filtering attribute

This patch adds the ability to toggle the vlan filtering support via
netlink. Since we're already running with rtnl in .changelink() we don't
need to take any additional locks.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index f24ec99a2262..d450be36add2 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -230,6 +230,7 @@ enum {
 	IFLA_BR_AGEING_TIME,
 	IFLA_BR_STP_STATE,
 	IFLA_BR_PRIORITY,
+	IFLA_BR_VLAN_FILTERING,
 	__IFLA_BR_MAX,
 };
 
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 91a2e08c2bb8..6eb683d8e0c5 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -724,6 +724,7 @@ static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = {
 	[IFLA_BR_AGEING_TIME] = { .type = NLA_U32 },
 	[IFLA_BR_STP_STATE] = { .type = NLA_U32 },
 	[IFLA_BR_PRIORITY] = { .type = NLA_U16 },
+	[IFLA_BR_VLAN_FILTERING] = { .type = NLA_U8 },
 };
 
 static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
@@ -771,6 +772,14 @@ static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
 		br_stp_set_bridge_priority(br, priority);
 	}
 
+	if (data[IFLA_BR_VLAN_FILTERING]) {
+		u8 vlan_filter = nla_get_u8(data[IFLA_BR_VLAN_FILTERING]);
+
+		err = __br_vlan_filter_toggle(br, vlan_filter);
+		if (err)
+			return err;
+	}
+
 	return 0;
 }
 
@@ -782,6 +791,7 @@ static size_t br_get_size(const struct net_device *brdev)
 	       nla_total_size(sizeof(u32)) +    /* IFLA_BR_AGEING_TIME */
 	       nla_total_size(sizeof(u32)) +    /* IFLA_BR_STP_STATE */
 	       nla_total_size(sizeof(u16)) +    /* IFLA_BR_PRIORITY */
+	       nla_total_size(sizeof(u8)) +     /* IFLA_BR_VLAN_FILTERING */
 	       0;
 }
 
@@ -794,13 +804,15 @@ static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev)
 	u32 ageing_time = jiffies_to_clock_t(br->ageing_time);
 	u32 stp_enabled = br->stp_enabled;
 	u16 priority = (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1];
+	u8 vlan_enabled = br_vlan_enabled(br);
 
 	if (nla_put_u32(skb, IFLA_BR_FORWARD_DELAY, forward_delay) ||
 	    nla_put_u32(skb, IFLA_BR_HELLO_TIME, hello_time) ||
 	    nla_put_u32(skb, IFLA_BR_MAX_AGE, age_time) ||
 	    nla_put_u32(skb, IFLA_BR_AGEING_TIME, ageing_time) ||
 	    nla_put_u32(skb, IFLA_BR_STP_STATE, stp_enabled) ||
-	    nla_put_u16(skb, IFLA_BR_PRIORITY, priority))
+	    nla_put_u16(skb, IFLA_BR_PRIORITY, priority) ||
+	    nla_put_u8(skb, IFLA_BR_VLAN_FILTERING, vlan_enabled))
 		return -EMSGSIZE;
 
 	return 0;
Reading git-diff-tree failed