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344f8c119d
This patch will use atomic operations for sequence number incrementation while MAC header generation. Upper layers like af_802154 or 6LoWPAN could call this function in a parallel context while generating 802.15.4 MAC header before queuing into wpan interfaces transmit queue. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
278 lines
6.7 KiB
C
278 lines
6.7 KiB
C
/*
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* Copyright 2007-2012 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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* Written by:
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* Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
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* Sergey Lapin <slapin@ossfans.org>
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* Maxim Gorbachyov <maxim.gorbachev@siemens.com>
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* Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
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*/
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#include <linux/if_arp.h>
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#include <net/mac802154.h>
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#include <net/ieee802154_netdev.h>
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#include <net/cfg802154.h>
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#include "ieee802154_i.h"
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#include "driver-ops.h"
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void mac802154_dev_set_short_addr(struct net_device *dev, __le16 val)
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{
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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BUG_ON(dev->type != ARPHRD_IEEE802154);
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spin_lock_bh(&sdata->mib_lock);
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sdata->wpan_dev.short_addr = val;
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spin_unlock_bh(&sdata->mib_lock);
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}
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__le16 mac802154_dev_get_short_addr(const struct net_device *dev)
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{
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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__le16 ret;
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BUG_ON(dev->type != ARPHRD_IEEE802154);
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spin_lock_bh(&sdata->mib_lock);
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ret = sdata->wpan_dev.short_addr;
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spin_unlock_bh(&sdata->mib_lock);
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return ret;
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}
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__le16 mac802154_dev_get_pan_id(const struct net_device *dev)
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{
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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__le16 ret;
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BUG_ON(dev->type != ARPHRD_IEEE802154);
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spin_lock_bh(&sdata->mib_lock);
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ret = sdata->wpan_dev.pan_id;
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spin_unlock_bh(&sdata->mib_lock);
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return ret;
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}
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void mac802154_dev_set_pan_id(struct net_device *dev, __le16 val)
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{
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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BUG_ON(dev->type != ARPHRD_IEEE802154);
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spin_lock_bh(&sdata->mib_lock);
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sdata->wpan_dev.pan_id = val;
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spin_unlock_bh(&sdata->mib_lock);
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}
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void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan)
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{
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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struct ieee802154_local *local = sdata->local;
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int res;
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ASSERT_RTNL();
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BUG_ON(dev->type != ARPHRD_IEEE802154);
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res = drv_set_channel(local, page, chan);
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if (res) {
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pr_debug("set_channel failed\n");
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} else {
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local->phy->current_channel = chan;
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local->phy->current_page = page;
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}
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}
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int mac802154_get_params(struct net_device *dev,
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struct ieee802154_llsec_params *params)
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{
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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int res;
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BUG_ON(dev->type != ARPHRD_IEEE802154);
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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_get_params(&sdata->sec, params);
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mutex_unlock(&sdata->sec_mtx);
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return res;
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}
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int mac802154_set_params(struct net_device *dev,
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const struct ieee802154_llsec_params *params,
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int changed)
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{
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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int res;
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BUG_ON(dev->type != ARPHRD_IEEE802154);
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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_set_params(&sdata->sec, params, changed);
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mutex_unlock(&sdata->sec_mtx);
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return res;
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}
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int mac802154_add_key(struct net_device *dev,
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const struct ieee802154_llsec_key_id *id,
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const struct ieee802154_llsec_key *key)
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{
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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int res;
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BUG_ON(dev->type != ARPHRD_IEEE802154);
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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_key_add(&sdata->sec, id, key);
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mutex_unlock(&sdata->sec_mtx);
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return res;
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}
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int mac802154_del_key(struct net_device *dev,
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const struct ieee802154_llsec_key_id *id)
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{
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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int res;
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BUG_ON(dev->type != ARPHRD_IEEE802154);
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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_key_del(&sdata->sec, id);
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mutex_unlock(&sdata->sec_mtx);
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return res;
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}
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int mac802154_add_dev(struct net_device *dev,
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const struct ieee802154_llsec_device *llsec_dev)
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{
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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int res;
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BUG_ON(dev->type != ARPHRD_IEEE802154);
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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_dev_add(&sdata->sec, llsec_dev);
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mutex_unlock(&sdata->sec_mtx);
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return res;
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}
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int mac802154_del_dev(struct net_device *dev, __le64 dev_addr)
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{
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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int res;
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BUG_ON(dev->type != ARPHRD_IEEE802154);
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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_dev_del(&sdata->sec, dev_addr);
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mutex_unlock(&sdata->sec_mtx);
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return res;
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}
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int mac802154_add_devkey(struct net_device *dev,
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__le64 device_addr,
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const struct ieee802154_llsec_device_key *key)
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{
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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int res;
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BUG_ON(dev->type != ARPHRD_IEEE802154);
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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_devkey_add(&sdata->sec, device_addr, key);
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mutex_unlock(&sdata->sec_mtx);
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return res;
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}
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int mac802154_del_devkey(struct net_device *dev,
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__le64 device_addr,
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const struct ieee802154_llsec_device_key *key)
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{
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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int res;
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BUG_ON(dev->type != ARPHRD_IEEE802154);
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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_devkey_del(&sdata->sec, device_addr, key);
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mutex_unlock(&sdata->sec_mtx);
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return res;
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}
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int mac802154_add_seclevel(struct net_device *dev,
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const struct ieee802154_llsec_seclevel *sl)
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{
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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int res;
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BUG_ON(dev->type != ARPHRD_IEEE802154);
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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_seclevel_add(&sdata->sec, sl);
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mutex_unlock(&sdata->sec_mtx);
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return res;
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}
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int mac802154_del_seclevel(struct net_device *dev,
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const struct ieee802154_llsec_seclevel *sl)
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{
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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int res;
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BUG_ON(dev->type != ARPHRD_IEEE802154);
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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_seclevel_del(&sdata->sec, sl);
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mutex_unlock(&sdata->sec_mtx);
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return res;
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}
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void mac802154_lock_table(struct net_device *dev)
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{
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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BUG_ON(dev->type != ARPHRD_IEEE802154);
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mutex_lock(&sdata->sec_mtx);
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}
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void mac802154_get_table(struct net_device *dev,
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struct ieee802154_llsec_table **t)
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{
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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BUG_ON(dev->type != ARPHRD_IEEE802154);
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*t = &sdata->sec.table;
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}
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void mac802154_unlock_table(struct net_device *dev)
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{
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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BUG_ON(dev->type != ARPHRD_IEEE802154);
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mutex_unlock(&sdata->sec_mtx);
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}
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