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Commit 7910228b authored by Nikolay Aleksandrov's avatar Nikolay Aleksandrov Committed by David S. Miller
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bridge: netlink: add group_fwd_mask support 



Add IFLA_BR_GROUP_FWD_MASK attribute to allow setting and retrieving the
group_fwd_mask via netlink.

Signed-off-by: default avatarNikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 68d4e520

include/uapi/linux/if_link.h

+1 −0
Original line number Diff line number Diff line
@@ -232,6 +232,7 @@ enum { 
	IFLA_BR_PRIORITY,

	IFLA_BR_VLAN_FILTERING,

	IFLA_BR_VLAN_PROTOCOL,

	IFLA_BR_GROUP_FWD_MASK,

	__IFLA_BR_MAX,

};

net/bridge/br_netlink.c

+13 −1
Original line number Diff line number Diff line
@@ -764,6 +764,7 @@ static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = { 
	[IFLA_BR_PRIORITY] = { .type = NLA_U16 },

	[IFLA_BR_VLAN_FILTERING] = { .type = NLA_U8 },

	[IFLA_BR_VLAN_PROTOCOL] = { .type = NLA_U16 },

	[IFLA_BR_GROUP_FWD_MASK] = { .type = NLA_U16 },

};



static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
@@ -829,6 +830,14 @@ static int br_changelink(struct net_device *brdev, struct nlattr *tb[], 
	}

#endif



	if (data[IFLA_BR_GROUP_FWD_MASK]) {

		u16 fwd_mask = nla_get_u16(data[IFLA_BR_GROUP_FWD_MASK]);



		if (fwd_mask & BR_GROUPFWD_RESTRICTED)

			return -EINVAL;

		br->group_fwd_mask = fwd_mask;

	}



	return 0;

}
@@ -844,6 +853,7 @@ static size_t br_get_size(const struct net_device *brdev) 
#ifdef CONFIG_BRIDGE_VLAN_FILTERING

	       nla_total_size(sizeof(__be16)) +	/* IFLA_BR_VLAN_PROTOCOL */

#endif

	       nla_total_size(sizeof(u16)) +    /* IFLA_BR_GROUP_FWD_MASK */

	       0;

}
@@ -856,6 +866,7 @@ 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];

	u16 group_fwd_mask = br->group_fwd_mask;

	u8 vlan_enabled = br_vlan_enabled(br);



	if (nla_put_u32(skb, IFLA_BR_FORWARD_DELAY, forward_delay) ||
@@ -864,7 +875,8 @@ static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev) 
	    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_u8(skb, IFLA_BR_VLAN_FILTERING, vlan_enabled))

	    nla_put_u8(skb, IFLA_BR_VLAN_FILTERING, vlan_enabled) ||

	    nla_put_u16(skb, IFLA_BR_GROUP_FWD_MASK, group_fwd_mask))

		return -EMSGSIZE;



#ifdef CONFIG_BRIDGE_VLAN_FILTERING