Ejemplo n.º 1
0
/* Flags are defined in the vlan_flags enum in include/linux/if_vlan.h file. */
int vlan_dev_change_flags(const struct net_device *dev, u32 flags, u32 mask)
{
	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
	u32 old_flags = vlan->flags;

	if (mask & ~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP |
		     VLAN_FLAG_LOOSE_BINDING | VLAN_FLAG_MVRP))
		return -EINVAL;

	vlan->flags = (old_flags & ~mask) | (flags & mask);

	if (netif_running(dev) && (vlan->flags ^ old_flags) & VLAN_FLAG_GVRP) {
		if (vlan->flags & VLAN_FLAG_GVRP)
			vlan_gvrp_request_join(dev);
		else
			vlan_gvrp_request_leave(dev);
	}

	if (netif_running(dev) && (vlan->flags ^ old_flags) & VLAN_FLAG_MVRP) {
		if (vlan->flags & VLAN_FLAG_MVRP)
			vlan_mvrp_request_join(dev);
		else
			vlan_mvrp_request_leave(dev);
	}
	return 0;
}
Ejemplo n.º 2
0
static int vlan_dev_open(struct net_device *dev)
{
	struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
	struct net_device *real_dev = vlan->real_dev;
	int err;

	if (!(real_dev->flags & IFF_UP) &&
	    !(vlan->flags & VLAN_FLAG_LOOSE_BINDING))
		return -ENETDOWN;

	if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr) &&
	    !vlan_dev_inherit_address(dev, real_dev)) {
		err = dev_uc_add(real_dev, dev->dev_addr);
		if (err < 0)
			goto out;
	}

	if (dev->flags & IFF_ALLMULTI) {
		err = dev_set_allmulti(real_dev, 1);
		if (err < 0)
			goto del_unicast;
	}
	if (dev->flags & IFF_PROMISC) {
		err = dev_set_promiscuity(real_dev, 1);
		if (err < 0)
			goto clear_allmulti;
	}

	ether_addr_copy(vlan->real_dev_addr, real_dev->dev_addr);

	if (vlan->flags & VLAN_FLAG_GVRP)
		vlan_gvrp_request_join(dev);

	if (vlan->flags & VLAN_FLAG_MVRP)
		vlan_mvrp_request_join(dev);

	if (netif_carrier_ok(real_dev) &&
	    !(vlan->flags & VLAN_FLAG_BRIDGE_BINDING))
		netif_carrier_on(dev);
	return 0;

clear_allmulti:
	if (dev->flags & IFF_ALLMULTI)
		dev_set_allmulti(real_dev, -1);
del_unicast:
	if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr))
		dev_uc_del(real_dev, dev->dev_addr);
out:
	netif_carrier_off(dev);
	return err;
}
static int vlan_dev_open(struct net_device *dev)
{
	struct vlan_dev_info *vlan = vlan_dev_info(dev);
	struct net_device *real_dev = vlan->real_dev;
	int err;

	if (!(real_dev->flags & IFF_UP) &&
	    !(vlan->flags & VLAN_FLAG_LOOSE_BINDING))
		return -ENETDOWN;

	if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr)) {
		err = dev_uc_add(real_dev, dev->dev_addr);
		if (err < 0)
			goto out;
	}

	if (dev->flags & IFF_ALLMULTI) {
		err = dev_set_allmulti(real_dev, 1);
		if (err < 0)
			goto del_unicast;
	}
	if (dev->flags & IFF_PROMISC) {
		err = dev_set_promiscuity(real_dev, 1);
		if (err < 0)
			goto clear_allmulti;
	}

	memcpy(vlan->real_dev_addr, real_dev->dev_addr, ETH_ALEN);

	if (vlan->flags & VLAN_FLAG_GVRP)
		vlan_gvrp_request_join(dev);

	netif_carrier_on(dev);
	return 0;

clear_allmulti:
	if (dev->flags & IFF_ALLMULTI)
		dev_set_allmulti(real_dev, -1);
del_unicast:
	if (compare_ether_addr(dev->dev_addr, real_dev->dev_addr))
		dev_uc_del(real_dev, dev->dev_addr);
out:
	netif_carrier_off(dev);
	return err;
}