+#ifdef CONFIG_COMPAT
+static int compat_list_ports(struct datapath *dp, struct compat_odp_portvec __user *upv)
+{
+ struct compat_odp_portvec pv;
+ int retval;
+
+ if (copy_from_user(&pv, upv, sizeof pv))
+ return -EFAULT;
+
+ retval = do_list_ports(dp, compat_ptr(pv.ports), pv.n_ports);
+ if (retval < 0)
+ return retval;
+
+ return put_user(retval, &upv->n_ports);
+}
+
+static int compat_get_flow(struct odp_flow *flow, const struct compat_odp_flow __user *compat)
+{
+ compat_uptr_t actions;
+
+ if (!access_ok(VERIFY_READ, compat, sizeof(struct compat_odp_flow)) ||
+ __copy_from_user(&flow->stats, &compat->stats, sizeof(struct odp_flow_stats)) ||
+ __copy_from_user(&flow->key, &compat->key, sizeof(struct odp_flow_key)) ||
+ __get_user(actions, &compat->actions) ||
+ __get_user(flow->actions_len, &compat->actions_len) ||
+ __get_user(flow->flags, &compat->flags))
+ return -EFAULT;
+
+ flow->actions = (struct nlattr __force *)compat_ptr(actions);
+ return 0;
+}
+
+static int compat_put_flow(struct datapath *dp, struct compat_odp_flow_put __user *ufp)
+{
+ struct odp_flow_stats stats;
+ struct odp_flow_put fp;
+ int error;
+
+ if (compat_get_flow(&fp.flow, &ufp->flow) ||
+ get_user(fp.flags, &ufp->flags))
+ return -EFAULT;
+
+ error = do_put_flow(dp, &fp, &stats);
+ if (error)
+ return error;
+
+ if (copy_to_user(&ufp->flow.stats, &stats,
+ sizeof(struct odp_flow_stats)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int compat_answer_query(struct datapath *dp, struct sw_flow *flow,
+ u32 query_flags,
+ struct compat_odp_flow __user *ufp)
+{
+ compat_uptr_t actions;
+
+ if (get_user(actions, &ufp->actions))
+ return -EFAULT;
+
+ return do_answer_query(dp, flow, query_flags, &ufp->stats,
+ compat_ptr(actions), &ufp->actions_len);
+}
+
+static int compat_del_flow(struct datapath *dp, struct compat_odp_flow __user *ufp)
+{
+ struct sw_flow *flow;
+ struct odp_flow uf;
+ int error;
+
+ if (compat_get_flow(&uf, ufp))
+ return -EFAULT;
+
+ flow = do_del_flow(dp, &uf.key);
+ if (IS_ERR(flow))
+ return PTR_ERR(flow);
+
+ error = compat_answer_query(dp, flow, 0, ufp);
+ flow_deferred_free(flow);
+ return error;
+}
+
+static int compat_query_flows(struct datapath *dp,
+ struct compat_odp_flow __user *flows,
+ u32 n_flows)
+{
+ struct tbl *table = get_table_protected(dp);
+ u32 i;
+
+ for (i = 0; i < n_flows; i++) {
+ struct compat_odp_flow __user *ufp = &flows[i];
+ struct odp_flow uf;
+ struct tbl_node *flow_node;
+ int error;
+
+ if (compat_get_flow(&uf, ufp))
+ return -EFAULT;
+
+ flow_node = tbl_lookup(table, &uf.key, flow_hash(&uf.key), flow_cmp);
+ if (!flow_node)
+ error = put_user(ENOENT, &ufp->stats.error);
+ else
+ error = compat_answer_query(dp, flow_cast(flow_node),
+ uf.flags, ufp);
+ if (error)
+ return -EFAULT;
+ }
+ return n_flows;
+}
+
+struct compat_list_flows_cbdata {
+ struct datapath *dp;
+ struct compat_odp_flow __user *uflows;
+ u32 n_flows;
+ u32 listed_flows;
+};
+
+static int compat_list_flow(struct tbl_node *node, void *cbdata_)
+{
+ struct sw_flow *flow = flow_cast(node);
+ struct compat_list_flows_cbdata *cbdata = cbdata_;
+ struct compat_odp_flow __user *ufp = &cbdata->uflows[cbdata->listed_flows++];
+ int error;
+
+ if (copy_to_user(&ufp->key, &flow->key, sizeof flow->key))
+ return -EFAULT;
+ error = compat_answer_query(cbdata->dp, flow, 0, ufp);
+ if (error)
+ return error;
+
+ if (cbdata->listed_flows >= cbdata->n_flows)
+ return cbdata->listed_flows;
+ return 0;
+}
+
+static int compat_list_flows(struct datapath *dp,
+ struct compat_odp_flow __user *flows, u32 n_flows)
+{
+ struct compat_list_flows_cbdata cbdata;
+ int error;
+
+ if (!n_flows)
+ return 0;
+
+ cbdata.dp = dp;
+ cbdata.uflows = flows;
+ cbdata.n_flows = n_flows;
+ cbdata.listed_flows = 0;
+
+ error = tbl_foreach(get_table_protected(dp), compat_list_flow, &cbdata);
+ return error ? error : cbdata.listed_flows;
+}
+
+static int compat_flowvec_ioctl(struct datapath *dp, unsigned long argp,
+ int (*function)(struct datapath *,
+ struct compat_odp_flow __user *,
+ u32 n_flows))
+{
+ struct compat_odp_flowvec __user *uflowvec;
+ struct compat_odp_flow __user *flows;
+ struct compat_odp_flowvec flowvec;
+ int retval;
+
+ uflowvec = compat_ptr(argp);
+ if (!access_ok(VERIFY_WRITE, uflowvec, sizeof *uflowvec) ||
+ copy_from_user(&flowvec, uflowvec, sizeof flowvec))
+ return -EFAULT;
+
+ if (flowvec.n_flows > INT_MAX / sizeof(struct compat_odp_flow))
+ return -EINVAL;
+
+ flows = compat_ptr(flowvec.flows);
+ if (!access_ok(VERIFY_WRITE, flows,
+ flowvec.n_flows * sizeof(struct compat_odp_flow)))
+ return -EFAULT;
+
+ retval = function(dp, flows, flowvec.n_flows);
+ return (retval < 0 ? retval
+ : retval == flowvec.n_flows ? 0
+ : put_user(retval, &uflowvec->n_flows));
+}
+
+static int compat_execute(struct datapath *dp, const struct compat_odp_execute __user *uexecute)
+{
+ struct odp_execute execute;
+ compat_uptr_t actions;
+ compat_uptr_t data;
+
+ if (!access_ok(VERIFY_READ, uexecute, sizeof(struct compat_odp_execute)) ||
+ __get_user(actions, &uexecute->actions) ||
+ __get_user(execute.actions_len, &uexecute->actions_len) ||
+ __get_user(data, &uexecute->data) ||
+ __get_user(execute.length, &uexecute->length))
+ return -EFAULT;
+
+ execute.actions = (struct nlattr __force *)compat_ptr(actions);
+ execute.data = (const void __force *)compat_ptr(data);
+
+ return do_execute(dp, &execute);
+}
+
+static long openvswitch_compat_ioctl(struct file *f, unsigned int cmd, unsigned long argp)