// SPDX-License-Identifier: GPL-2.0-only /* * Linux WiMAX * Implement and export a method for getting a WiMAX device current state * * Copyright (C) 2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt> * * Based on previous WiMAX core work by: * Copyright (C) 2008 Intel Corporation <linux-wimax@intel.com> * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> */ #include <net/wimax.h> #include <net/genetlink.h> #include <linux/wimax.h> #include <linux/security.h> #include "wimax-internal.h" #define D_SUBMODULE op_state_get #include "debug-levels.h" /* * Exporting to user space over generic netlink * * Parse the state get command from user space, return a combination * value that describe the current state. * * No attributes. */ int wimax_gnl_doit_state_get(struct sk_buff *skb, struct genl_info *info) { int result, ifindex; struct wimax_dev *wimax_dev; d_fnstart(3, NULL, "(skb %p info %p)\n", skb, info); result = -ENODEV; if (info->attrs[WIMAX_GNL_STGET_IFIDX] == NULL) { pr_err("WIMAX_GNL_OP_STATE_GET: can't find IFIDX attribute\n"); goto error_no_wimax_dev; } ifindex = nla_get_u32(info->attrs[WIMAX_GNL_STGET_IFIDX]); wimax_dev = wimax_dev_get_by_genl_info(info, ifindex); if (wimax_dev == NULL) goto error_no_wimax_dev; /* Execute the operation and send the result back to user space */ result = wimax_state_get(wimax_dev); dev_put(wimax_dev->net_dev); error_no_wimax_dev: d_fnend(3, NULL, "(skb %p info %p) = %d\n", skb, info, result); return result; }