mirror of https://gitee.com/openkylin/linux.git
718 lines
19 KiB
C
718 lines
19 KiB
C
/*
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* Netlink inteface for IEEE 802.15.4 stack
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*
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* Copyright 2007, 2008 Siemens AG
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Written by:
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* Sergey Lapin <slapin@ossfans.org>
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* Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
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* Maxim Osipov <maxim.osipov@siemens.com>
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*/
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#include <linux/gfp.h>
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#include <linux/kernel.h>
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#include <linux/if_arp.h>
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#include <linux/netdevice.h>
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#include <net/netlink.h>
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#include <net/genetlink.h>
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#include <net/sock.h>
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#include <linux/nl802154.h>
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#include <linux/export.h>
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#include <net/af_ieee802154.h>
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#include <net/nl802154.h>
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#include <net/ieee802154.h>
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#include <net/ieee802154_netdev.h>
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#include <net/wpan-phy.h>
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#include "ieee802154.h"
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static int nla_put_hwaddr(struct sk_buff *msg, int type, __le64 hwaddr)
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{
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return nla_put_u64(msg, type, swab64((__force u64)hwaddr));
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}
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static __le64 nla_get_hwaddr(const struct nlattr *nla)
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{
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return ieee802154_devaddr_from_raw(nla_data(nla));
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}
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static int nla_put_shortaddr(struct sk_buff *msg, int type, __le16 addr)
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{
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return nla_put_u16(msg, type, le16_to_cpu(addr));
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}
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static __le16 nla_get_shortaddr(const struct nlattr *nla)
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{
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return cpu_to_le16(nla_get_u16(nla));
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}
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int ieee802154_nl_assoc_indic(struct net_device *dev,
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struct ieee802154_addr *addr, u8 cap)
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{
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struct sk_buff *msg;
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pr_debug("%s\n", __func__);
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if (addr->mode != IEEE802154_ADDR_LONG) {
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pr_err("%s: received non-long source address!\n", __func__);
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return -EINVAL;
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}
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msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_INDIC);
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if (!msg)
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return -ENOBUFS;
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if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
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nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
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nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
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dev->dev_addr) ||
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nla_put_hwaddr(msg, IEEE802154_ATTR_SRC_HW_ADDR,
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addr->extended_addr) ||
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nla_put_u8(msg, IEEE802154_ATTR_CAPABILITY, cap))
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goto nla_put_failure;
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return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
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nla_put_failure:
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nlmsg_free(msg);
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return -ENOBUFS;
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}
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EXPORT_SYMBOL(ieee802154_nl_assoc_indic);
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int ieee802154_nl_assoc_confirm(struct net_device *dev, __le16 short_addr,
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u8 status)
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{
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struct sk_buff *msg;
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pr_debug("%s\n", __func__);
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msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_CONF);
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if (!msg)
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return -ENOBUFS;
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if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
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nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
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nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
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dev->dev_addr) ||
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nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr) ||
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nla_put_u8(msg, IEEE802154_ATTR_STATUS, status))
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goto nla_put_failure;
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return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
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nla_put_failure:
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nlmsg_free(msg);
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return -ENOBUFS;
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}
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EXPORT_SYMBOL(ieee802154_nl_assoc_confirm);
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int ieee802154_nl_disassoc_indic(struct net_device *dev,
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struct ieee802154_addr *addr, u8 reason)
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{
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struct sk_buff *msg;
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pr_debug("%s\n", __func__);
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msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_INDIC);
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if (!msg)
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return -ENOBUFS;
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if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
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nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
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nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
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dev->dev_addr))
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goto nla_put_failure;
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if (addr->mode == IEEE802154_ADDR_LONG) {
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if (nla_put_hwaddr(msg, IEEE802154_ATTR_SRC_HW_ADDR,
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addr->extended_addr))
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goto nla_put_failure;
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} else {
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if (nla_put_shortaddr(msg, IEEE802154_ATTR_SRC_SHORT_ADDR,
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addr->short_addr))
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goto nla_put_failure;
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}
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if (nla_put_u8(msg, IEEE802154_ATTR_REASON, reason))
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goto nla_put_failure;
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return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
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nla_put_failure:
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nlmsg_free(msg);
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return -ENOBUFS;
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}
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EXPORT_SYMBOL(ieee802154_nl_disassoc_indic);
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int ieee802154_nl_disassoc_confirm(struct net_device *dev, u8 status)
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{
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struct sk_buff *msg;
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pr_debug("%s\n", __func__);
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msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_CONF);
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if (!msg)
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return -ENOBUFS;
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if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
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nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
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nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
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dev->dev_addr) ||
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nla_put_u8(msg, IEEE802154_ATTR_STATUS, status))
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goto nla_put_failure;
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return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
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nla_put_failure:
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nlmsg_free(msg);
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return -ENOBUFS;
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}
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EXPORT_SYMBOL(ieee802154_nl_disassoc_confirm);
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int ieee802154_nl_beacon_indic(struct net_device *dev, __le16 panid,
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__le16 coord_addr)
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{
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struct sk_buff *msg;
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pr_debug("%s\n", __func__);
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msg = ieee802154_nl_create(0, IEEE802154_BEACON_NOTIFY_INDIC);
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if (!msg)
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return -ENOBUFS;
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if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
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nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
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nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
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dev->dev_addr) ||
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nla_put_shortaddr(msg, IEEE802154_ATTR_COORD_SHORT_ADDR,
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coord_addr) ||
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nla_put_shortaddr(msg, IEEE802154_ATTR_COORD_PAN_ID, panid))
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goto nla_put_failure;
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return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
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nla_put_failure:
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nlmsg_free(msg);
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return -ENOBUFS;
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}
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EXPORT_SYMBOL(ieee802154_nl_beacon_indic);
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int ieee802154_nl_scan_confirm(struct net_device *dev,
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u8 status, u8 scan_type, u32 unscanned, u8 page,
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u8 *edl/* , struct list_head *pan_desc_list */)
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{
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struct sk_buff *msg;
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pr_debug("%s\n", __func__);
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msg = ieee802154_nl_create(0, IEEE802154_SCAN_CONF);
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if (!msg)
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return -ENOBUFS;
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if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
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nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
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nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
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dev->dev_addr) ||
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nla_put_u8(msg, IEEE802154_ATTR_STATUS, status) ||
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nla_put_u8(msg, IEEE802154_ATTR_SCAN_TYPE, scan_type) ||
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nla_put_u32(msg, IEEE802154_ATTR_CHANNELS, unscanned) ||
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nla_put_u8(msg, IEEE802154_ATTR_PAGE, page) ||
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(edl &&
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nla_put(msg, IEEE802154_ATTR_ED_LIST, 27, edl)))
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goto nla_put_failure;
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return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
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nla_put_failure:
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nlmsg_free(msg);
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return -ENOBUFS;
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}
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EXPORT_SYMBOL(ieee802154_nl_scan_confirm);
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int ieee802154_nl_start_confirm(struct net_device *dev, u8 status)
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{
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struct sk_buff *msg;
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pr_debug("%s\n", __func__);
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msg = ieee802154_nl_create(0, IEEE802154_START_CONF);
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if (!msg)
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return -ENOBUFS;
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if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
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nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
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nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
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dev->dev_addr) ||
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nla_put_u8(msg, IEEE802154_ATTR_STATUS, status))
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goto nla_put_failure;
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return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
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nla_put_failure:
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nlmsg_free(msg);
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return -ENOBUFS;
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}
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EXPORT_SYMBOL(ieee802154_nl_start_confirm);
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static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 portid,
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u32 seq, int flags, struct net_device *dev)
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{
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void *hdr;
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struct wpan_phy *phy;
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struct ieee802154_mlme_ops *ops;
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__le16 short_addr, pan_id;
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pr_debug("%s\n", __func__);
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hdr = genlmsg_put(msg, 0, seq, &nl802154_family, flags,
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IEEE802154_LIST_IFACE);
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if (!hdr)
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goto out;
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ops = ieee802154_mlme_ops(dev);
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phy = ops->get_phy(dev);
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BUG_ON(!phy);
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short_addr = ops->get_short_addr(dev);
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pan_id = ops->get_pan_id(dev);
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if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
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nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) ||
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nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
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nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
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dev->dev_addr) ||
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nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr) ||
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nla_put_shortaddr(msg, IEEE802154_ATTR_PAN_ID, pan_id))
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goto nla_put_failure;
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if (ops->get_mac_params) {
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struct ieee802154_mac_params params;
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ops->get_mac_params(dev, ¶ms);
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if (nla_put_s8(msg, IEEE802154_ATTR_TXPOWER,
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params.transmit_power) ||
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nla_put_u8(msg, IEEE802154_ATTR_LBT_ENABLED, params.lbt) ||
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nla_put_u8(msg, IEEE802154_ATTR_CCA_MODE,
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params.cca_mode) ||
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nla_put_s32(msg, IEEE802154_ATTR_CCA_ED_LEVEL,
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params.cca_ed_level) ||
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nla_put_u8(msg, IEEE802154_ATTR_CSMA_RETRIES,
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params.csma_retries) ||
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nla_put_u8(msg, IEEE802154_ATTR_CSMA_MIN_BE,
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params.min_be) ||
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nla_put_u8(msg, IEEE802154_ATTR_CSMA_MAX_BE,
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params.max_be) ||
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nla_put_s8(msg, IEEE802154_ATTR_FRAME_RETRIES,
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params.frame_retries))
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goto nla_put_failure;
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}
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wpan_phy_put(phy);
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return genlmsg_end(msg, hdr);
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nla_put_failure:
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wpan_phy_put(phy);
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genlmsg_cancel(msg, hdr);
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out:
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return -EMSGSIZE;
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}
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/* Requests from userspace */
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static struct net_device *ieee802154_nl_get_dev(struct genl_info *info)
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{
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struct net_device *dev;
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if (info->attrs[IEEE802154_ATTR_DEV_NAME]) {
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char name[IFNAMSIZ + 1];
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nla_strlcpy(name, info->attrs[IEEE802154_ATTR_DEV_NAME],
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sizeof(name));
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dev = dev_get_by_name(&init_net, name);
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} else if (info->attrs[IEEE802154_ATTR_DEV_INDEX])
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dev = dev_get_by_index(&init_net,
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nla_get_u32(info->attrs[IEEE802154_ATTR_DEV_INDEX]));
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else
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return NULL;
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if (!dev)
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return NULL;
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if (dev->type != ARPHRD_IEEE802154) {
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dev_put(dev);
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return NULL;
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}
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return dev;
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}
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int ieee802154_associate_req(struct sk_buff *skb, struct genl_info *info)
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{
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struct net_device *dev;
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struct ieee802154_addr addr;
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u8 page;
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int ret = -EOPNOTSUPP;
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if (!info->attrs[IEEE802154_ATTR_CHANNEL] ||
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!info->attrs[IEEE802154_ATTR_COORD_PAN_ID] ||
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(!info->attrs[IEEE802154_ATTR_COORD_HW_ADDR] &&
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!info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]) ||
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!info->attrs[IEEE802154_ATTR_CAPABILITY])
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return -EINVAL;
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dev = ieee802154_nl_get_dev(info);
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if (!dev)
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return -ENODEV;
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if (!ieee802154_mlme_ops(dev)->assoc_req)
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goto out;
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if (info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]) {
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addr.mode = IEEE802154_ADDR_LONG;
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addr.extended_addr = nla_get_hwaddr(
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info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]);
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} else {
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addr.mode = IEEE802154_ADDR_SHORT;
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addr.short_addr = nla_get_shortaddr(
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info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]);
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}
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addr.pan_id = nla_get_shortaddr(
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info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
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if (info->attrs[IEEE802154_ATTR_PAGE])
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page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
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else
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page = 0;
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ret = ieee802154_mlme_ops(dev)->assoc_req(dev, &addr,
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nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]),
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page,
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nla_get_u8(info->attrs[IEEE802154_ATTR_CAPABILITY]));
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out:
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dev_put(dev);
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return ret;
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}
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int ieee802154_associate_resp(struct sk_buff *skb, struct genl_info *info)
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{
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struct net_device *dev;
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struct ieee802154_addr addr;
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int ret = -EOPNOTSUPP;
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if (!info->attrs[IEEE802154_ATTR_STATUS] ||
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!info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] ||
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!info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR])
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return -EINVAL;
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dev = ieee802154_nl_get_dev(info);
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if (!dev)
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return -ENODEV;
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if (!ieee802154_mlme_ops(dev)->assoc_resp)
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goto out;
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addr.mode = IEEE802154_ADDR_LONG;
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addr.extended_addr = nla_get_hwaddr(
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info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]);
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addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
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ret = ieee802154_mlme_ops(dev)->assoc_resp(dev, &addr,
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nla_get_shortaddr(info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]),
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nla_get_u8(info->attrs[IEEE802154_ATTR_STATUS]));
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out:
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dev_put(dev);
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return ret;
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}
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int ieee802154_disassociate_req(struct sk_buff *skb, struct genl_info *info)
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{
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struct net_device *dev;
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struct ieee802154_addr addr;
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int ret = -EOPNOTSUPP;
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if ((!info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] &&
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!info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) ||
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!info->attrs[IEEE802154_ATTR_REASON])
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return -EINVAL;
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dev = ieee802154_nl_get_dev(info);
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if (!dev)
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return -ENODEV;
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if (!ieee802154_mlme_ops(dev)->disassoc_req)
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goto out;
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if (info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]) {
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addr.mode = IEEE802154_ADDR_LONG;
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addr.extended_addr = nla_get_hwaddr(
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info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]);
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} else {
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addr.mode = IEEE802154_ADDR_SHORT;
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addr.short_addr = nla_get_shortaddr(
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|
info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]);
|
|
}
|
|
addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
|
|
|
|
ret = ieee802154_mlme_ops(dev)->disassoc_req(dev, &addr,
|
|
nla_get_u8(info->attrs[IEEE802154_ATTR_REASON]));
|
|
|
|
out:
|
|
dev_put(dev);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* PANid, channel, beacon_order = 15, superframe_order = 15,
|
|
* PAN_coordinator, battery_life_extension = 0,
|
|
* coord_realignment = 0, security_enable = 0
|
|
*/
|
|
int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct net_device *dev;
|
|
struct ieee802154_addr addr;
|
|
|
|
u8 channel, bcn_ord, sf_ord;
|
|
u8 page;
|
|
int pan_coord, blx, coord_realign;
|
|
int ret = -EOPNOTSUPP;
|
|
|
|
if (!info->attrs[IEEE802154_ATTR_COORD_PAN_ID] ||
|
|
!info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR] ||
|
|
!info->attrs[IEEE802154_ATTR_CHANNEL] ||
|
|
!info->attrs[IEEE802154_ATTR_BCN_ORD] ||
|
|
!info->attrs[IEEE802154_ATTR_SF_ORD] ||
|
|
!info->attrs[IEEE802154_ATTR_PAN_COORD] ||
|
|
!info->attrs[IEEE802154_ATTR_BAT_EXT] ||
|
|
!info->attrs[IEEE802154_ATTR_COORD_REALIGN]
|
|
)
|
|
return -EINVAL;
|
|
|
|
dev = ieee802154_nl_get_dev(info);
|
|
if (!dev)
|
|
return -ENODEV;
|
|
if (!ieee802154_mlme_ops(dev)->start_req)
|
|
goto out;
|
|
|
|
addr.mode = IEEE802154_ADDR_SHORT;
|
|
addr.short_addr = nla_get_shortaddr(
|
|
info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]);
|
|
addr.pan_id = nla_get_shortaddr(
|
|
info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
|
|
|
|
channel = nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]);
|
|
bcn_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_BCN_ORD]);
|
|
sf_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_SF_ORD]);
|
|
pan_coord = nla_get_u8(info->attrs[IEEE802154_ATTR_PAN_COORD]);
|
|
blx = nla_get_u8(info->attrs[IEEE802154_ATTR_BAT_EXT]);
|
|
coord_realign = nla_get_u8(info->attrs[IEEE802154_ATTR_COORD_REALIGN]);
|
|
|
|
if (info->attrs[IEEE802154_ATTR_PAGE])
|
|
page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
|
|
else
|
|
page = 0;
|
|
|
|
|
|
if (addr.short_addr == cpu_to_le16(IEEE802154_ADDR_BROADCAST)) {
|
|
ieee802154_nl_start_confirm(dev, IEEE802154_NO_SHORT_ADDRESS);
|
|
dev_put(dev);
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel, page,
|
|
bcn_ord, sf_ord, pan_coord, blx, coord_realign);
|
|
|
|
out:
|
|
dev_put(dev);
|
|
return ret;
|
|
}
|
|
|
|
int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct net_device *dev;
|
|
int ret = -EOPNOTSUPP;
|
|
u8 type;
|
|
u32 channels;
|
|
u8 duration;
|
|
u8 page;
|
|
|
|
if (!info->attrs[IEEE802154_ATTR_SCAN_TYPE] ||
|
|
!info->attrs[IEEE802154_ATTR_CHANNELS] ||
|
|
!info->attrs[IEEE802154_ATTR_DURATION])
|
|
return -EINVAL;
|
|
|
|
dev = ieee802154_nl_get_dev(info);
|
|
if (!dev)
|
|
return -ENODEV;
|
|
if (!ieee802154_mlme_ops(dev)->scan_req)
|
|
goto out;
|
|
|
|
type = nla_get_u8(info->attrs[IEEE802154_ATTR_SCAN_TYPE]);
|
|
channels = nla_get_u32(info->attrs[IEEE802154_ATTR_CHANNELS]);
|
|
duration = nla_get_u8(info->attrs[IEEE802154_ATTR_DURATION]);
|
|
|
|
if (info->attrs[IEEE802154_ATTR_PAGE])
|
|
page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
|
|
else
|
|
page = 0;
|
|
|
|
|
|
ret = ieee802154_mlme_ops(dev)->scan_req(dev, type, channels, page,
|
|
duration);
|
|
|
|
out:
|
|
dev_put(dev);
|
|
return ret;
|
|
}
|
|
|
|
int ieee802154_list_iface(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
/* Request for interface name, index, type, IEEE address,
|
|
PAN Id, short address */
|
|
struct sk_buff *msg;
|
|
struct net_device *dev = NULL;
|
|
int rc = -ENOBUFS;
|
|
|
|
pr_debug("%s\n", __func__);
|
|
|
|
dev = ieee802154_nl_get_dev(info);
|
|
if (!dev)
|
|
return -ENODEV;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
goto out_dev;
|
|
|
|
rc = ieee802154_nl_fill_iface(msg, info->snd_portid, info->snd_seq,
|
|
0, dev);
|
|
if (rc < 0)
|
|
goto out_free;
|
|
|
|
dev_put(dev);
|
|
|
|
return genlmsg_reply(msg, info);
|
|
out_free:
|
|
nlmsg_free(msg);
|
|
out_dev:
|
|
dev_put(dev);
|
|
return rc;
|
|
|
|
}
|
|
|
|
int ieee802154_dump_iface(struct sk_buff *skb, struct netlink_callback *cb)
|
|
{
|
|
struct net *net = sock_net(skb->sk);
|
|
struct net_device *dev;
|
|
int idx;
|
|
int s_idx = cb->args[0];
|
|
|
|
pr_debug("%s\n", __func__);
|
|
|
|
idx = 0;
|
|
for_each_netdev(net, dev) {
|
|
if (idx < s_idx || (dev->type != ARPHRD_IEEE802154))
|
|
goto cont;
|
|
|
|
if (ieee802154_nl_fill_iface(skb, NETLINK_CB(cb->skb).portid,
|
|
cb->nlh->nlmsg_seq, NLM_F_MULTI, dev) < 0)
|
|
break;
|
|
cont:
|
|
idx++;
|
|
}
|
|
cb->args[0] = idx;
|
|
|
|
return skb->len;
|
|
}
|
|
|
|
int ieee802154_set_macparams(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct net_device *dev = NULL;
|
|
struct ieee802154_mlme_ops *ops;
|
|
struct ieee802154_mac_params params;
|
|
struct wpan_phy *phy;
|
|
int rc = -EINVAL;
|
|
|
|
pr_debug("%s\n", __func__);
|
|
|
|
dev = ieee802154_nl_get_dev(info);
|
|
if (!dev)
|
|
return -ENODEV;
|
|
|
|
ops = ieee802154_mlme_ops(dev);
|
|
|
|
if (!ops->get_mac_params || !ops->set_mac_params) {
|
|
rc = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
if (netif_running(dev)) {
|
|
rc = -EBUSY;
|
|
goto out;
|
|
}
|
|
|
|
if (!info->attrs[IEEE802154_ATTR_LBT_ENABLED] &&
|
|
!info->attrs[IEEE802154_ATTR_CCA_MODE] &&
|
|
!info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL] &&
|
|
!info->attrs[IEEE802154_ATTR_CSMA_RETRIES] &&
|
|
!info->attrs[IEEE802154_ATTR_CSMA_MIN_BE] &&
|
|
!info->attrs[IEEE802154_ATTR_CSMA_MAX_BE] &&
|
|
!info->attrs[IEEE802154_ATTR_FRAME_RETRIES])
|
|
goto out;
|
|
|
|
phy = ops->get_phy(dev);
|
|
|
|
if ((!phy->set_lbt && info->attrs[IEEE802154_ATTR_LBT_ENABLED]) ||
|
|
(!phy->set_cca_mode && info->attrs[IEEE802154_ATTR_CCA_MODE]) ||
|
|
(!phy->set_cca_ed_level &&
|
|
info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]) ||
|
|
(!phy->set_csma_params &&
|
|
(info->attrs[IEEE802154_ATTR_CSMA_RETRIES] ||
|
|
info->attrs[IEEE802154_ATTR_CSMA_MIN_BE] ||
|
|
info->attrs[IEEE802154_ATTR_CSMA_MAX_BE])) ||
|
|
(!phy->set_frame_retries &&
|
|
info->attrs[IEEE802154_ATTR_FRAME_RETRIES])) {
|
|
rc = -EOPNOTSUPP;
|
|
goto out_phy;
|
|
}
|
|
|
|
ops->get_mac_params(dev, ¶ms);
|
|
|
|
if (info->attrs[IEEE802154_ATTR_TXPOWER])
|
|
params.transmit_power = nla_get_s8(info->attrs[IEEE802154_ATTR_TXPOWER]);
|
|
|
|
if (info->attrs[IEEE802154_ATTR_LBT_ENABLED])
|
|
params.lbt = nla_get_u8(info->attrs[IEEE802154_ATTR_LBT_ENABLED]);
|
|
|
|
if (info->attrs[IEEE802154_ATTR_CCA_MODE])
|
|
params.cca_mode = nla_get_u8(info->attrs[IEEE802154_ATTR_CCA_MODE]);
|
|
|
|
if (info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL])
|
|
params.cca_ed_level = nla_get_s32(info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]);
|
|
|
|
if (info->attrs[IEEE802154_ATTR_CSMA_RETRIES])
|
|
params.csma_retries = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_RETRIES]);
|
|
|
|
if (info->attrs[IEEE802154_ATTR_CSMA_MIN_BE])
|
|
params.min_be = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_MIN_BE]);
|
|
|
|
if (info->attrs[IEEE802154_ATTR_CSMA_MAX_BE])
|
|
params.max_be = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_MAX_BE]);
|
|
|
|
if (info->attrs[IEEE802154_ATTR_FRAME_RETRIES])
|
|
params.frame_retries = nla_get_s8(info->attrs[IEEE802154_ATTR_FRAME_RETRIES]);
|
|
|
|
rc = ops->set_mac_params(dev, ¶ms);
|
|
|
|
wpan_phy_put(phy);
|
|
dev_put(dev);
|
|
return rc;
|
|
|
|
out_phy:
|
|
wpan_phy_put(phy);
|
|
out:
|
|
dev_put(dev);
|
|
return rc;
|
|
}
|