wimax: Add netlink interface to get device state (7f0333eb) · Commits · 戴 / test

include/linux/wimax.h

+5 −0

Original line number	Diff line number	Diff line
		@@ -78,6 +78,7 @@ enum {
		WIMAX_GNL_OP_RFKILL, /* Run wimax_rfkill() */
		WIMAX_GNL_OP_RESET, /* Run wimax_rfkill() */
		WIMAX_GNL_RE_STATE_CHANGE, /* Report: status change */
		WIMAX_GNL_OP_STATE_GET, /* Request for current state */
		};


		@@ -113,6 +114,10 @@ enum {
		WIMAX_GNL_RESET_IFIDX = 1,
		};

		/* Atributes for wimax_state_get() */
		enum {
		WIMAX_GNL_STGET_IFIDX = 1,
		};

		/*
		* Attributes for the Report State Change

net/wimax/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -6,6 +6,7 @@ wimax-y := \
		op-msg.o \
		op-reset.o \
		op-rfkill.o \
		op-state-get.o \
		stack.o

		wimax-$(CONFIG_DEBUG_FS) += debugfs.o

net/wimax/debug-levels.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -36,6 +36,7 @@ enum d_module {
		D_SUBMODULE_DECLARE(op_msg),
		D_SUBMODULE_DECLARE(op_reset),
		D_SUBMODULE_DECLARE(op_rfkill),
		D_SUBMODULE_DECLARE(op_state_get),
		D_SUBMODULE_DECLARE(stack),
		};

net/wimax/debugfs.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -61,6 +61,7 @@ int wimax_debugfs_add(struct wimax_dev *wimax_dev)
		__debugfs_register("wimax_dl_", op_msg, dentry);
		__debugfs_register("wimax_dl_", op_reset, dentry);
		__debugfs_register("wimax_dl_", op_rfkill, dentry);
		__debugfs_register("wimax_dl_", op_state_get, dentry);
		__debugfs_register("wimax_dl_", stack, dentry);
		result = 0;
		out:

net/wimax/op-state-get.c

0 → 100644

+86 −0

Original line number	Diff line number	Diff line
		/*
		* 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>
		*
		* This program is free software; you can redistribute it and/or
		* modify it under the terms of the GNU General Public License version
		* 2 as published by the Free Software Foundation.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*
		* You should have received a copy of the GNU General Public License
		* along with this program; if not, write to the Free Software
		* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
		* 02110-1301, USA.
		*/

		#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"


		static const
		struct nla_policy wimax_gnl_state_get_policy[WIMAX_GNL_ATTR_MAX + 1] = {
		[WIMAX_GNL_STGET_IFIDX] = {
		.type = NLA_U32,
		},
		};


		/*
		* 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.
		*/
		static
		int wimax_gnl_doit_state_get(struct sk_buff skb, struct genl_info info)
		{
		int result, ifindex;
		struct wimax_dev *wimax_dev;
		struct device *dev;

		d_fnstart(3, NULL, "(skb %p info %p)\n", skb, info);
		result = -ENODEV;
		if (info->attrs[WIMAX_GNL_STGET_IFIDX] == NULL) {
		printk(KERN_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;
		dev = wimax_dev_to_dev(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;
		}


		struct genl_ops wimax_gnl_state_get = {
		.cmd = WIMAX_GNL_OP_STATE_GET,
		.flags = GENL_ADMIN_PERM,
		.policy = wimax_gnl_state_get_policy,
		.doit = wimax_gnl_doit_state_get,
		.dumpit = NULL,
		};

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