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| author | Eric W. Biederman <ebiederm@xmission.com> | 2012-11-16 03:03:09 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-11-18 20:33:00 -0500 |
| commit | 276996fda0f33bd5e5e028c426f852ecd119372b (patch) | |
| tree | f26b522e2ad3775b31b1ecc45c50a4ac9120988a | |
| parent | cb99050305f0ffed0d0ee0d95f1d6645af4d3237 (diff) | |
| download | lwn-276996fda0f33bd5e5e028c426f852ecd119372b.tar.gz lwn-276996fda0f33bd5e5e028c426f852ecd119372b.zip | |
net: Allow the userns root to control vlans.
Allow an unpriviled user who has created a user namespace, and then
created a network namespace to effectively use the new network
namespace, by reducing capable(CAP_NET_ADMIN) and
capable(CAP_NET_RAW) calls to be ns_capable(net->user_ns,
CAP_NET_ADMIN), or capable(net->user_ns, CAP_NET_RAW) calls.
Allow the vlan ioctls:
SET_VLAN_INGRESS_PRIORITY_CMD
SET_VLAN_EGRESS_PRIORITY_CMD
SET_VLAN_FLAG_CMD
SET_VLAN_NAME_TYPE_CMD
ADD_VLAN_CMD
DEL_VLAN_CMD
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/8021q/vlan.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index 30ee4bc0f7cc..afba51e60310 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -529,7 +529,7 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg) switch (args.cmd) { case SET_VLAN_INGRESS_PRIORITY_CMD: err = -EPERM; - if (!capable(CAP_NET_ADMIN)) + if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) break; vlan_dev_set_ingress_priority(dev, args.u.skb_priority, @@ -539,7 +539,7 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg) case SET_VLAN_EGRESS_PRIORITY_CMD: err = -EPERM; - if (!capable(CAP_NET_ADMIN)) + if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) break; err = vlan_dev_set_egress_priority(dev, args.u.skb_priority, @@ -548,7 +548,7 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg) case SET_VLAN_FLAG_CMD: err = -EPERM; - if (!capable(CAP_NET_ADMIN)) + if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) break; err = vlan_dev_change_flags(dev, args.vlan_qos ? args.u.flag : 0, @@ -557,7 +557,7 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg) case SET_VLAN_NAME_TYPE_CMD: err = -EPERM; - if (!capable(CAP_NET_ADMIN)) + if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) break; if ((args.u.name_type >= 0) && (args.u.name_type < VLAN_NAME_TYPE_HIGHEST)) { @@ -573,14 +573,14 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg) case ADD_VLAN_CMD: err = -EPERM; - if (!capable(CAP_NET_ADMIN)) + if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) break; err = register_vlan_device(dev, args.u.VID); break; case DEL_VLAN_CMD: err = -EPERM; - if (!capable(CAP_NET_ADMIN)) + if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) break; unregister_vlan_dev(dev, NULL); err = 0; |