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path: root/net/8021q/vlan_netlink.c
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Diffstat (limited to 'net/8021q/vlan_netlink.c')
-rw-r--r--net/8021q/vlan_netlink.c32
1 files changed, 26 insertions, 6 deletions
diff --git a/net/8021q/vlan_netlink.c b/net/8021q/vlan_netlink.c
index 1789658b7cd7..309129732285 100644
--- a/net/8021q/vlan_netlink.c
+++ b/net/8021q/vlan_netlink.c
@@ -23,6 +23,7 @@ static const struct nla_policy vlan_policy[IFLA_VLAN_MAX + 1] = {
[IFLA_VLAN_FLAGS] = { .len = sizeof(struct ifla_vlan_flags) },
[IFLA_VLAN_EGRESS_QOS] = { .type = NLA_NESTED },
[IFLA_VLAN_INGRESS_QOS] = { .type = NLA_NESTED },
+ [IFLA_VLAN_PROTOCOL] = { .type = NLA_U16 },
};
static const struct nla_policy vlan_map_policy[IFLA_VLAN_QOS_MAX + 1] = {
@@ -53,6 +54,16 @@ static int vlan_validate(struct nlattr *tb[], struct nlattr *data[])
if (!data)
return -EINVAL;
+ if (data[IFLA_VLAN_PROTOCOL]) {
+ switch (nla_get_be16(data[IFLA_VLAN_PROTOCOL])) {
+ case __constant_htons(ETH_P_8021Q):
+ case __constant_htons(ETH_P_8021AD):
+ break;
+ default:
+ return -EPROTONOSUPPORT;
+ }
+ }
+
if (data[IFLA_VLAN_ID]) {
id = nla_get_u16(data[IFLA_VLAN_ID]);
if (id >= VLAN_VID_MASK)
@@ -107,6 +118,7 @@ static int vlan_newlink(struct net *src_net, struct net_device *dev,
{
struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
struct net_device *real_dev;
+ __be16 proto;
int err;
if (!data[IFLA_VLAN_ID])
@@ -118,11 +130,17 @@ static int vlan_newlink(struct net *src_net, struct net_device *dev,
if (!real_dev)
return -ENODEV;
- vlan->vlan_id = nla_get_u16(data[IFLA_VLAN_ID]);
- vlan->real_dev = real_dev;
- vlan->flags = VLAN_FLAG_REORDER_HDR;
+ if (data[IFLA_VLAN_PROTOCOL])
+ proto = nla_get_be16(data[IFLA_VLAN_PROTOCOL]);
+ else
+ proto = htons(ETH_P_8021Q);
+
+ vlan->vlan_proto = proto;
+ vlan->vlan_id = nla_get_u16(data[IFLA_VLAN_ID]);
+ vlan->real_dev = real_dev;
+ vlan->flags = VLAN_FLAG_REORDER_HDR;
- err = vlan_check_real_dev(real_dev, vlan->vlan_id);
+ err = vlan_check_real_dev(real_dev, vlan->vlan_proto, vlan->vlan_id);
if (err < 0)
return err;
@@ -151,7 +169,8 @@ static size_t vlan_get_size(const struct net_device *dev)
{
struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
- return nla_total_size(2) + /* IFLA_VLAN_ID */
+ return nla_total_size(2) + /* IFLA_VLAN_PROTOCOL */
+ nla_total_size(2) + /* IFLA_VLAN_ID */
sizeof(struct ifla_vlan_flags) + /* IFLA_VLAN_FLAGS */
vlan_qos_map_size(vlan->nr_ingress_mappings) +
vlan_qos_map_size(vlan->nr_egress_mappings);
@@ -166,7 +185,8 @@ static int vlan_fill_info(struct sk_buff *skb, const struct net_device *dev)
struct nlattr *nest;
unsigned int i;
- if (nla_put_u16(skb, IFLA_VLAN_ID, vlan_dev_priv(dev)->vlan_id))
+ if (nla_put_be16(skb, IFLA_VLAN_PROTOCOL, vlan->vlan_proto) ||
+ nla_put_u16(skb, IFLA_VLAN_ID, vlan->vlan_id))
goto nla_put_failure;
if (vlan->flags) {
f.flags = vlan->flags;