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authorDavid S. Miller <davem@davemloft.net>2011-02-03 17:24:28 -0800
committerDavid S. Miller <davem@davemloft.net>2011-02-03 17:24:28 -0800
commitca6b8bb097c8e0ab6bce4fa04584074dee17c0d9 (patch)
tree4d4892f421fbe0edfb03fab640521d01c8540c52 /net
parent0033d5ad27a6db33a55ff39951d3ec61a8c13b89 (diff)
net: Support compat SIOCGETVIFCNT ioctl in ipv4.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/ipmr.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index fce10a080bd..8b65a12654e 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -1444,9 +1444,19 @@ struct compat_sioc_sg_req {
compat_ulong_t wrong_if;
};
+struct compat_sioc_vif_req {
+ vifi_t vifi; /* Which iface */
+ compat_ulong_t icount;
+ compat_ulong_t ocount;
+ compat_ulong_t ibytes;
+ compat_ulong_t obytes;
+};
+
int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg)
{
struct compat_sioc_sg_req sr;
+ struct compat_sioc_vif_req vr;
+ struct vif_device *vif;
struct mfc_cache *c;
struct net *net = sock_net(sk);
struct mr_table *mrt;
@@ -1456,6 +1466,26 @@ int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg)
return -ENOENT;
switch (cmd) {
+ case SIOCGETVIFCNT:
+ if (copy_from_user(&vr, arg, sizeof(vr)))
+ return -EFAULT;
+ if (vr.vifi >= mrt->maxvif)
+ return -EINVAL;
+ read_lock(&mrt_lock);
+ vif = &mrt->vif_table[vr.vifi];
+ if (VIF_EXISTS(mrt, vr.vifi)) {
+ vr.icount = vif->pkt_in;
+ vr.ocount = vif->pkt_out;
+ vr.ibytes = vif->bytes_in;
+ vr.obytes = vif->bytes_out;
+ read_unlock(&mrt_lock);
+
+ if (copy_to_user(arg, &vr, sizeof(vr)))
+ return -EFAULT;
+ return 0;
+ }
+ read_unlock(&mrt_lock);
+ return -EADDRNOTAVAIL;
case SIOCGETSGCNT:
if (copy_from_user(&sr, arg, sizeof(sr)))
return -EFAULT;