UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

net: Support compat SIOCGETVIFCNT ioctl in ipv4. 

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2011-02-03 17:24:28 -08:00
parent 0033d5ad27
commit ca6b8bb097
1 changed files with 30 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
net/ipv4/ipmr.c
View File

@ -1444,9 +1444,19 @@ struct compat_sioc_sg_req {
compat_ulong_t wrong_if; 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) int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg)
{ {
struct compat_sioc_sg_req sr; struct compat_sioc_sg_req sr;
struct compat_sioc_vif_req vr;
struct vif_device *vif;
struct mfc_cache *c; struct mfc_cache *c;
struct net *net = sock_net(sk); struct net *net = sock_net(sk);
struct mr_table *mrt; struct mr_table *mrt;
@ -1456,6 +1466,26 @@ int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg)
return -ENOENT; return -ENOENT;
switch (cmd) { 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: case SIOCGETSGCNT:
if (copy_from_user(&sr, arg, sizeof(sr))) if (copy_from_user(&sr, arg, sizeof(sr)))
return -EFAULT; return -EFAULT;