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