aboutsummaryrefslogtreecommitdiff
path: root/net/8021q/vlan_netlink.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/8021q/vlan_netlink.c')
-rw-r--r--net/8021q/vlan_netlink.c79
1 files changed, 42 insertions, 37 deletions
diff --git a/net/8021q/vlan_netlink.c b/net/8021q/vlan_netlink.c
index ddc105734af..8ac8a5cc214 100644
--- a/net/8021q/vlan_netlink.c
+++ b/net/8021q/vlan_netlink.c
@@ -11,6 +11,7 @@
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/if_vlan.h>
+#include <linux/module.h>
#include <net/net_namespace.h>
#include <net/netlink.h>
#include <net/rtnetlink.h>
@@ -22,6 +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] = {
@@ -52,6 +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 htons(ETH_P_8021Q):
+ case 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)
@@ -61,7 +73,7 @@ static int vlan_validate(struct nlattr *tb[], struct nlattr *data[])
flags = nla_data(data[IFLA_VLAN_FLAGS]);
if ((flags->flags & flags->mask) &
~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP |
- VLAN_FLAG_LOOSE_BINDING))
+ VLAN_FLAG_LOOSE_BINDING | VLAN_FLAG_MVRP))
return -EINVAL;
}
@@ -101,30 +113,12 @@ static int vlan_changelink(struct net_device *dev,
return 0;
}
-static int vlan_get_tx_queues(struct net *net,
- struct nlattr *tb[],
- unsigned int *num_tx_queues,
- unsigned int *real_num_tx_queues)
-{
- struct net_device *real_dev;
-
- if (!tb[IFLA_LINK])
- return -EINVAL;
-
- real_dev = __dev_get_by_index(net, nla_get_u32(tb[IFLA_LINK]));
- if (!real_dev)
- return -ENODEV;
-
- *num_tx_queues = real_dev->num_tx_queues;
- *real_num_tx_queues = real_dev->real_num_tx_queues;
- return 0;
-}
-
static int vlan_newlink(struct net *src_net, struct net_device *dev,
struct nlattr *tb[], struct nlattr *data[])
{
- struct vlan_dev_info *vlan = vlan_dev_info(dev);
+ struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
struct net_device *real_dev;
+ __be16 proto;
int err;
if (!data[IFLA_VLAN_ID])
@@ -136,11 +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);
- err = vlan_check_real_dev(real_dev, vlan->vlan_id);
+ 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_proto, vlan->vlan_id);
if (err < 0)
return err;
@@ -167,28 +167,32 @@ static inline size_t vlan_qos_map_size(unsigned int n)
static size_t vlan_get_size(const struct net_device *dev)
{
- struct vlan_dev_info *vlan = vlan_dev_info(dev);
+ struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
- return nla_total_size(2) + /* IFLA_VLAN_ID */
- sizeof(struct ifla_vlan_flags) + /* IFLA_VLAN_FLAGS */
+ return nla_total_size(2) + /* IFLA_VLAN_PROTOCOL */
+ nla_total_size(2) + /* IFLA_VLAN_ID */
+ nla_total_size(sizeof(struct ifla_vlan_flags)) + /* IFLA_VLAN_FLAGS */
vlan_qos_map_size(vlan->nr_ingress_mappings) +
vlan_qos_map_size(vlan->nr_egress_mappings);
}
static int vlan_fill_info(struct sk_buff *skb, const struct net_device *dev)
{
- struct vlan_dev_info *vlan = vlan_dev_info(dev);
+ struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
struct vlan_priority_tci_mapping *pm;
struct ifla_vlan_flags f;
struct ifla_vlan_qos_mapping m;
struct nlattr *nest;
unsigned int i;
- NLA_PUT_U16(skb, IFLA_VLAN_ID, vlan_dev_info(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;
f.mask = ~0;
- NLA_PUT(skb, IFLA_VLAN_FLAGS, sizeof(f), &f);
+ if (nla_put(skb, IFLA_VLAN_FLAGS, sizeof(f), &f))
+ goto nla_put_failure;
}
if (vlan->nr_ingress_mappings) {
nest = nla_nest_start(skb, IFLA_VLAN_INGRESS_QOS);
@@ -201,8 +205,9 @@ static int vlan_fill_info(struct sk_buff *skb, const struct net_device *dev)
m.from = i;
m.to = vlan->ingress_priority_map[i];
- NLA_PUT(skb, IFLA_VLAN_QOS_MAPPING,
- sizeof(m), &m);
+ if (nla_put(skb, IFLA_VLAN_QOS_MAPPING,
+ sizeof(m), &m))
+ goto nla_put_failure;
}
nla_nest_end(skb, nest);
}
@@ -220,8 +225,9 @@ static int vlan_fill_info(struct sk_buff *skb, const struct net_device *dev)
m.from = pm->priority;
m.to = (pm->vlan_qos >> 13) & 0x7;
- NLA_PUT(skb, IFLA_VLAN_QOS_MAPPING,
- sizeof(m), &m);
+ if (nla_put(skb, IFLA_VLAN_QOS_MAPPING,
+ sizeof(m), &m))
+ goto nla_put_failure;
}
}
nla_nest_end(skb, nest);
@@ -236,8 +242,7 @@ struct rtnl_link_ops vlan_link_ops __read_mostly = {
.kind = "vlan",
.maxtype = IFLA_VLAN_MAX,
.policy = vlan_policy,
- .priv_size = sizeof(struct vlan_dev_info),
- .get_tx_queues = vlan_get_tx_queues,
+ .priv_size = sizeof(struct vlan_dev_priv),
.setup = vlan_setup,
.validate = vlan_validate,
.newlink = vlan_newlink,
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 06:57:48 +0000