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52 lines
1.5 KiB
52 lines
1.5 KiB
// 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 <[email protected]> |
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* |
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* Based on previous WiMAX core work by: |
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* Copyright (C) 2008 Intel Corporation <[email protected]> |
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* Inaky Perez-Gonzalez <[email protected]> |
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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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