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Commit 111189ab authored by Nikolay Aleksandrov's avatar Nikolay Aleksandrov Committed by David S. Miller
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bridge: netlink: add group_addr support



Add IFLA_BR_GROUP_ADDR attribute to allow setting and retrieving the
group_addr via netlink.

Signed-off-by: default avatarNikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d76bd14e
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+1 −0
Original line number Original line Diff line number Diff line
@@ -243,6 +243,7 @@ enum {
	IFLA_BR_TCN_TIMER,
	IFLA_BR_TCN_TIMER,
	IFLA_BR_TOPOLOGY_CHANGE_TIMER,
	IFLA_BR_TOPOLOGY_CHANGE_TIMER,
	IFLA_BR_GC_TIMER,
	IFLA_BR_GC_TIMER,
	IFLA_BR_GROUP_ADDR,
	__IFLA_BR_MAX,
	__IFLA_BR_MAX,
};
};


+24 −1
Original line number Original line Diff line number Diff line
@@ -765,6 +765,8 @@ static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = {
	[IFLA_BR_VLAN_FILTERING] = { .type = NLA_U8 },
	[IFLA_BR_VLAN_FILTERING] = { .type = NLA_U8 },
	[IFLA_BR_VLAN_PROTOCOL] = { .type = NLA_U16 },
	[IFLA_BR_VLAN_PROTOCOL] = { .type = NLA_U16 },
	[IFLA_BR_GROUP_FWD_MASK] = { .type = NLA_U16 },
	[IFLA_BR_GROUP_FWD_MASK] = { .type = NLA_U16 },
	[IFLA_BR_GROUP_ADDR] = { .type = NLA_BINARY,
				 .len  = ETH_ALEN },
};
};


static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
@@ -838,6 +840,25 @@ static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
		br->group_fwd_mask = fwd_mask;
		br->group_fwd_mask = fwd_mask;
	}
	}


	if (data[IFLA_BR_GROUP_ADDR]) {
		u8 new_addr[ETH_ALEN];

		if (nla_len(data[IFLA_BR_GROUP_ADDR]) != ETH_ALEN)
			return -EINVAL;
		memcpy(new_addr, nla_data(data[IFLA_BR_GROUP_ADDR]), ETH_ALEN);
		if (!is_link_local_ether_addr(new_addr))
			return -EINVAL;
		if (new_addr[5] == 1 ||		/* 802.3x Pause address */
		    new_addr[5] == 2 ||		/* 802.3ad Slow protocols */
		    new_addr[5] == 3)		/* 802.1X PAE address */
			return -EINVAL;
		spin_lock_bh(&br->lock);
		memcpy(br->group_addr, new_addr, sizeof(br->group_addr));
		spin_unlock_bh(&br->lock);
		br->group_addr_set = true;
		br_recalculate_fwd_mask(br);
	}

	return 0;
	return 0;
}
}


@@ -864,6 +885,7 @@ static size_t br_get_size(const struct net_device *brdev)
	       nla_total_size(sizeof(u64)) +    /* IFLA_BR_TCN_TIMER */
	       nla_total_size(sizeof(u64)) +    /* IFLA_BR_TCN_TIMER */
	       nla_total_size(sizeof(u64)) +    /* IFLA_BR_TOPOLOGY_CHANGE_TIMER */
	       nla_total_size(sizeof(u64)) +    /* IFLA_BR_TOPOLOGY_CHANGE_TIMER */
	       nla_total_size(sizeof(u64)) +    /* IFLA_BR_GC_TIMER */
	       nla_total_size(sizeof(u64)) +    /* IFLA_BR_GC_TIMER */
	       nla_total_size(ETH_ALEN) +       /* IFLA_BR_GROUP_ADDR */
	       0;
	       0;
}
}


@@ -911,7 +933,8 @@ static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev)
	    nla_put_u64(skb, IFLA_BR_TCN_TIMER, tcn_timer) ||
	    nla_put_u64(skb, IFLA_BR_TCN_TIMER, tcn_timer) ||
	    nla_put_u64(skb, IFLA_BR_TOPOLOGY_CHANGE_TIMER,
	    nla_put_u64(skb, IFLA_BR_TOPOLOGY_CHANGE_TIMER,
			topology_change_timer) ||
			topology_change_timer) ||
	    nla_put_u64(skb, IFLA_BR_GC_TIMER, gc_timer))
	    nla_put_u64(skb, IFLA_BR_GC_TIMER, gc_timer) ||
	    nla_put(skb, IFLA_BR_GROUP_ADDR, ETH_ALEN, br->group_addr))
		return -EMSGSIZE;
		return -EMSGSIZE;


#ifdef CONFIG_BRIDGE_VLAN_FILTERING
#ifdef CONFIG_BRIDGE_VLAN_FILTERING