static int hidp_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
{
if (cmd == HIDPGETCONNLIST) {
struct hidp_connlist_req cl;
u32 uci;
int err;
if (get_user(cl.cnum, (u32 __user *) arg) ||
get_user(uci, (u32 __user *) (arg + 4)))
return -EFAULT;
cl.ci = compat_ptr(uci);
if (cl.cnum <= 0)
return -EINVAL;
err = hidp_get_connlist(&cl);
if (!err && put_user(cl.cnum, (u32 __user *) arg))
err = -EFAULT;
return err;
} else if (cmd == HIDPCONNADD) {
struct compat_hidp_connadd_req ca;
struct hidp_connadd_req __user *uca;
uca = compat_alloc_user_space(sizeof(*uca));
if (copy_from_user(&ca, (void __user *) arg, sizeof(ca)))
return -EFAULT;
if (put_user(ca.ctrl_sock, &uca->ctrl_sock) ||
put_user(ca.intr_sock, &uca->intr_sock) ||
put_user(ca.parser, &uca->parser) ||
put_user(ca.rd_size, &uca->rd_size) ||
put_user(compat_ptr(ca.rd_data), &uca->rd_data) ||
put_user(ca.country, &uca->country) ||
put_user(ca.subclass, &uca->subclass) ||
put_user(ca.vendor, &uca->vendor) ||
put_user(ca.product, &uca->product) ||
put_user(ca.version, &uca->version) ||
put_user(ca.flags, &uca->flags) ||
put_user(ca.idle_to, &uca->idle_to) ||
copy_to_user(&uca->name[0], &ca.name[0], 128))
return -EFAULT;
arg = (unsigned long) uca;
/* Fall through. We don't actually write back any _changes_
to the structure anyway, so there's no need to copy back
into the original compat version */
}
return hidp_sock_ioctl(sock, cmd, arg);
}
static int hidp_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
{
void __user *argp = compat_ptr(arg);
int err;
if (cmd == HIDPGETCONNLIST) {
struct hidp_connlist_req cl;
u32 __user *p = argp;
u32 uci;
if (get_user(cl.cnum, p) || get_user(uci, p + 1))
return -EFAULT;
cl.ci = compat_ptr(uci);
if (cl.cnum <= 0)
return -EINVAL;
err = hidp_get_connlist(&cl);
if (!err && put_user(cl.cnum, p))
err = -EFAULT;
return err;
} else if (cmd == HIDPCONNADD) {
struct compat_hidp_connadd_req ca32;
struct hidp_connadd_req ca;
struct socket *csock;
struct socket *isock;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
if (copy_from_user(&ca32, (void __user *) arg, sizeof(ca32)))
return -EFAULT;
ca.ctrl_sock = ca32.ctrl_sock;
ca.intr_sock = ca32.intr_sock;
ca.parser = ca32.parser;
ca.rd_size = ca32.rd_size;
ca.rd_data = compat_ptr(ca32.rd_data);
ca.country = ca32.country;
ca.subclass = ca32.subclass;
ca.vendor = ca32.vendor;
ca.product = ca32.product;
ca.version = ca32.version;
ca.flags = ca32.flags;
ca.idle_to = ca32.idle_to;
memcpy(ca.name, ca32.name, 128);
csock = sockfd_lookup(ca.ctrl_sock, &err);
if (!csock)
return err;
isock = sockfd_lookup(ca.intr_sock, &err);
if (!isock) {
sockfd_put(csock);
return err;
}
err = hidp_connection_add(&ca, csock, isock);
if (!err && copy_to_user(argp, &ca32, sizeof(ca32)))
err = -EFAULT;
sockfd_put(csock);
sockfd_put(isock);
return err;
}
return hidp_sock_ioctl(sock, cmd, arg);
}