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/*
* Copyright 2007-2012 Siemens AG
*
* 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.
*
* Written by:
* Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
* Sergey Lapin <slapin@ossfans.org>
* Maxim Gorbachyov <maxim.gorbachev@siemens.com>
* Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
*/
#include <linux/if_arp.h>
#include <net/mac802154.h>
#include <net/ieee802154_netdev.h>
#include <net/cfg802154.h>
#include "ieee802154_i.h"
struct phy_chan_notify_work {
struct work_struct work;
struct net_device *dev;
};
struct hw_addr_filt_notify_work {
struct work_struct work;
struct net_device *dev;
unsigned long changed;
};
static struct ieee802154_local *mac802154_slave_get_priv(struct net_device *dev)
{
struct ieee802154_sub_if_data *sdata = netdev_priv(dev);
BUG_ON(dev->type != ARPHRD_IEEE802154);
return sdata->hw;
}
static void hw_addr_notify(struct work_struct *work)
{
struct hw_addr_filt_notify_work *nw = container_of(work,
struct hw_addr_filt_notify_work, work);
struct ieee802154_local *local = mac802154_slave_get_priv(nw->dev);
int res;
res = local->ops->set_hw_addr_filt(&local->hw, &local->hw.hw_filt,
nw->changed);
if (res)
pr_debug("failed changed mask %lx\n", nw->changed);
kfree(nw);
}
static void set_hw_addr_filt(struct net_device *dev, unsigned long changed)
{
struct ieee802154_sub_if_data *sdata = netdev_priv(dev);
struct hw_addr_filt_notify_work *work;
work = kzalloc(sizeof(*work), GFP_ATOMIC);
if (!work)
return;
INIT_WORK(&work->work, hw_addr_notify);
work->dev = dev;
work->changed = changed;
queue_work(sdata->hw->dev_workqueue, &work->work);
}
void mac802154_dev_set_short_addr(struct net_device *dev, __le16 val)
{
struct ieee802154_sub_if_data *sdata = netdev_priv(dev);
BUG_ON(dev->type != ARPHRD_IEEE802154);
spin_lock_bh(&sdata->mib_lock);
sdata->short_addr = val;
spin_unlock_bh(&sdata->mib_lock);
if ((sdata->hw->ops->set_hw_addr_filt) &&
(sdata->hw->hw.hw_filt.short_addr != sdata->short_addr)) {
sdata->hw->hw.hw_filt.short_addr = sdata->short_addr;
set_hw_addr_filt(dev, IEEE802154_AFILT_SADDR_CHANGED);
}
}
__le16 mac802154_dev_get_short_addr(const struct net_device *dev)
{
struct ieee802154_sub_if_data *sdata = netdev_priv(dev);
__le16 ret;
BUG_ON(dev->type != ARPHRD_IEEE802154);
spin_lock_bh(&sdata->mib_lock);
ret = sdata->short_addr;
spin_unlock_bh(&sdata->mib_lock);
return ret;
}
void mac802154_dev_set_ieee_addr(struct net_device *dev)
{
struct ieee802154_sub_if_data *sdata = netdev_priv(dev);
struct ieee802154_local *local = sdata->hw;
sdata->extended_addr = ieee802154_devaddr_from_raw(dev->dev_addr);
if (local->ops->set_hw_addr_filt &&
local->hw.hw_filt.ieee_addr != sdata->extended_addr) {
local->hw.hw_filt.ieee_addr = sdata->extended_addr;
set_hw_addr_filt(dev, IEEE802154_AFILT_IEEEADDR_CHANGED);
}
}
__le16 mac802154_dev_get_pan_id(const struct net_device *dev)
{
struct ieee802154_sub_if_data *sdata = netdev_priv(dev);
__le16 ret;
BUG_ON(dev->type != ARPHRD_IEEE802154);
spin_lock_bh(&sdata->mib_lock);
ret = sdata->pan_id;
spin_unlock_bh(&sdata->mib_lock);
return ret;
}
void mac802154_dev_set_pan_id(struct net_device *dev, __le16 val)
{
struct ieee802154_sub_if_data *sdata = netdev_priv(dev);
BUG_ON(dev->type != ARPHRD_IEEE802154);
spin_lock_bh(&sdata->mib_lock);
sdata->pan_id = val;
spin_unlock_bh(&sdata->mib_lock);
if ((sdata->hw->ops->set_hw_addr_filt) &&
(sdata->hw->hw.hw_filt.pan_id != sdata->pan_id)) {
sdata->hw->hw.hw_filt.pan_id = sdata->pan_id;
set_hw_addr_filt(dev, IEEE802154_AFILT_PANID_CHANGED);
}
}
u8 mac802154_dev_get_dsn(const struct net_device *dev)
{
struct ieee802154_sub_if_data *sdata = netdev_priv(dev);
BUG_ON(dev->type != ARPHRD_IEEE802154);
return sdata->dsn++;
}
static void phy_chan_notify(struct work_struct *work)
{
struct phy_chan_notify_work *nw = container_of(work,
struct phy_chan_notify_work, work);
struct ieee802154_local *local = mac802154_slave_get_priv(nw->dev);
struct ieee802154_sub_if_data *sdata = netdev_priv(nw->dev);
int res;
mutex_lock(&sdata->hw->phy->pib_lock);
res = local->ops->set_channel(&local->hw, sdata->page, sdata->chan);
if (res) {
pr_debug("set_channel failed\n");
} else {
sdata->hw->phy->current_channel = sdata->chan;
sdata->hw->phy->current_page = sdata->page;
}
mutex_unlock(&sdata->hw->phy->pib_lock);
kfree(nw);
}
void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan)
{
struct ieee802154_sub_if_data *sdata = netdev_priv(dev);
struct phy_chan_notify_work *work;
BUG_ON(dev->type != ARPHRD_IEEE802154);
spin_lock_bh(&sdata->mib_lock);
sdata->page = page;
sdata->chan = chan;
spin_unlock_bh(&sdata->mib_lock);
mutex_lock(&sdata->hw->phy->pib_lock);
if (sdata->hw->phy->current_channel != sdata->chan ||
sdata->hw->phy->current_page != sdata->page) {
mutex_unlock(&sdata->hw->phy->pib_lock);
work = kzalloc(sizeof(*work), GFP_ATOMIC);
if (!work)
return;
INIT_WORK(&work->work, phy_chan_notify);
work->dev = dev;
queue_work(sdata->hw->dev_workqueue, &work->work);
} else {
mutex_unlock(&sdata->hw->phy->pib_lock);
}
}
int mac802154_get_params(struct net_device *dev,
struct ieee802154_llsec_params *params)
{
struct ieee802154_sub_if_data *sdata = netdev_priv(dev);
int res;
BUG_ON(dev->type != ARPHRD_IEEE802154);
mutex_lock(&sdata->sec_mtx);
res = mac802154_llsec_get_params(&sdata->sec, params);
mutex_unlock(&sdata->sec_mtx);
return res;
}
int mac802154_set_params(struct net_device *dev,
const struct ieee802154_llsec_params *params,
int changed)
{
struct ieee802154_sub_if_data *sdata = netdev_priv(dev);
int res;
BUG_ON(dev->type != ARPHRD_IEEE802154);
mutex_lock(&sdata->sec_mtx);
res = mac802154_llsec_set_params(&sdata->sec, params, changed);
mutex_unlock(&sdata->sec_mtx);
return res;
}
int mac802154_add_key(struct net_device *dev,
const struct ieee802154_llsec_key_id *id,
const struct ieee802154_llsec_key *key)
{
struct ieee802154_sub_if_data *sdata = netdev_priv(dev);
int res;
BUG_ON(dev->type != ARPHRD_IEEE802154);
mutex_lock(&sdata->sec_mtx);
res = mac802154_llsec_key_add(&sdata->sec, id, key);
mutex_unlock(&sdata->sec_mtx);
return res;
}
int mac802154_del_key(struct net_device *dev,
const struct ieee802154_llsec_key_id *id)
{
struct ieee802154_sub_if_data *sdata = netdev_priv(dev);
int res;
BUG_ON(dev->type != ARPHRD_IEEE802154);
mutex_lock(&sdata->sec_mtx);
res = mac802154_llsec_key_del(&sdata->sec, id);
mutex_unlock(&sdata->sec_mtx);
return res;
}
int mac802154_add_dev(struct net_device *dev,
const struct ieee802154_llsec_device *llsec_dev)
{
struct ieee802154_sub_if_data *sdata = netdev_priv(dev);
int res;
BUG_ON(dev->type != ARPHRD_IEEE802154);
mutex_lock(&sdata->sec_mtx);
res = mac802154_llsec_dev_add(&sdata->sec, llsec_dev);
mutex_unlock(&sdata->sec_mtx);
return res;
}
int mac802154_del_dev(struct net_device *dev, __le64 dev_addr)
{
struct ieee802154_sub_if_data *sdata = netdev_priv(dev);
int res;
BUG_ON(dev->type != ARPHRD_IEEE802154);
mutex_lock(&sdata->sec_mtx);
res = mac802154_llsec_dev_del(&sdata->sec, dev_addr);
mutex_unlock(&sdata->sec_mtx);
return res;
}
int mac802154_add_devkey(struct net_device *dev,
__le64 device_addr,
const struct ieee802154_llsec_device_key *key)
{
struct ieee802154_sub_if_data *sdata = netdev_priv(dev);
int res;
BUG_ON(dev->type != ARPHRD_IEEE802154);
mutex_lock(&sdata->sec_mtx);
res = mac802154_llsec_devkey_add(&sdata->sec, device_addr, key);
mutex_unlock(&sdata->sec_mtx);
return res;
}
int mac802154_del_devkey(struct net_device *dev,
__le64 device_addr,
const struct ieee802154_llsec_device_key *key)
{
struct ieee802154_sub_if_data *sdata = netdev_priv(dev);
int res;
BUG_ON(dev->type != ARPHRD_IEEE802154);
mutex_lock(&sdata->sec_mtx);
res = mac802154_llsec_devkey_del(&sdata->sec, device_addr, key);
mutex_unlock(&sdata->sec_mtx);
return res;
}
int mac802154_add_seclevel(struct net_device *dev,
const struct ieee802154_llsec_seclevel *sl)
{
struct ieee802154_sub_if_data *sdata = netdev_priv(dev);
int res;
BUG_ON(dev->type != ARPHRD_IEEE802154);
mutex_lock(&sdata->sec_mtx);
res = mac802154_llsec_seclevel_add(&sdata->sec, sl);
mutex_unlock(&sdata->sec_mtx);
return res;
}
int mac802154_del_seclevel(struct net_device *dev,
const struct ieee802154_llsec_seclevel *sl)
{
struct ieee802154_sub_if_data *sdata = netdev_priv(dev);
int res;
BUG_ON(dev->type != ARPHRD_IEEE802154);
mutex_lock(&sdata->sec_mtx);
res = mac802154_llsec_seclevel_del(&sdata->sec, sl);
mutex_unlock(&sdata->sec_mtx);
return res;
}
void mac802154_lock_table(struct net_device *dev)
{
struct ieee802154_sub_if_data *sdata = netdev_priv(dev);
BUG_ON(dev->type != ARPHRD_IEEE802154);
mutex_lock(&sdata->sec_mtx);
}
void mac802154_get_table(struct net_device *dev,
struct ieee802154_llsec_table **t)
{
struct ieee802154_sub_if_data *sdata = netdev_priv(dev);
BUG_ON(dev->type != ARPHRD_IEEE802154);
*t = &sdata->sec.table;
}
void mac802154_unlock_table(struct net_device *dev)
{
struct ieee802154_sub_if_data *sdata = netdev_priv(dev);
BUG_ON(dev->type != ARPHRD_IEEE802154);
mutex_unlock(&sdata->sec_mtx);
}
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