net: Support compat SIOCGETVIFCNT ioctl in ipv4.
Signed-off-by: David S. Miller <davem@davemloft.net>
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0033d5ad27
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ca6b8bb097
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@ -1444,9 +1444,19 @@ struct compat_sioc_sg_req {
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compat_ulong_t wrong_if;
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};
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struct compat_sioc_vif_req {
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vifi_t vifi; /* Which iface */
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compat_ulong_t icount;
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compat_ulong_t ocount;
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compat_ulong_t ibytes;
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compat_ulong_t obytes;
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};
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int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg)
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{
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struct compat_sioc_sg_req sr;
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struct compat_sioc_vif_req vr;
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struct vif_device *vif;
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struct mfc_cache *c;
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struct net *net = sock_net(sk);
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struct mr_table *mrt;
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@ -1456,6 +1466,26 @@ int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg)
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return -ENOENT;
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switch (cmd) {
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case SIOCGETVIFCNT:
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if (copy_from_user(&vr, arg, sizeof(vr)))
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return -EFAULT;
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if (vr.vifi >= mrt->maxvif)
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return -EINVAL;
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read_lock(&mrt_lock);
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vif = &mrt->vif_table[vr.vifi];
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if (VIF_EXISTS(mrt, vr.vifi)) {
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vr.icount = vif->pkt_in;
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vr.ocount = vif->pkt_out;
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vr.ibytes = vif->bytes_in;
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vr.obytes = vif->bytes_out;
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read_unlock(&mrt_lock);
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if (copy_to_user(arg, &vr, sizeof(vr)))
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return -EFAULT;
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return 0;
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}
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read_unlock(&mrt_lock);
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return -EADDRNOTAVAIL;
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case SIOCGETSGCNT:
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if (copy_from_user(&sr, arg, sizeof(sr)))
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return -EFAULT;
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