a26c5fd762
This patch adds support for accessing mac802154 llsec implementation over nl802154. I added for a new Kconfig entry to provide this functionality CONFIG_IEEE802154_NL802154_EXPERIMENTAL. This interface is still in development. It provides to change security parameters and add/del/dump entries of security tables. Later we can add also a get to get an entry by unique identifier. Cc: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
493 lines
12 KiB
C
493 lines
12 KiB
C
/* 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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* Authors:
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* Alexander Aring <aar@pengutronix.de>
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*
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* Based on: net/mac80211/cfg.c
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*/
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#include <net/rtnetlink.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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#include "cfg.h"
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static struct net_device *
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ieee802154_add_iface_deprecated(struct wpan_phy *wpan_phy,
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const char *name,
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unsigned char name_assign_type, int type)
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{
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struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
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struct net_device *dev;
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rtnl_lock();
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dev = ieee802154_if_add(local, name, name_assign_type, type,
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cpu_to_le64(0x0000000000000000ULL));
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rtnl_unlock();
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return dev;
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}
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static void ieee802154_del_iface_deprecated(struct wpan_phy *wpan_phy,
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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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ieee802154_if_remove(sdata);
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}
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#ifdef CONFIG_PM
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static int ieee802154_suspend(struct wpan_phy *wpan_phy)
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{
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struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
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if (!local->open_count)
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goto suspend;
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ieee802154_stop_queue(&local->hw);
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synchronize_net();
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/* stop hardware - this must stop RX */
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ieee802154_stop_device(local);
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suspend:
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local->suspended = true;
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return 0;
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}
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static int ieee802154_resume(struct wpan_phy *wpan_phy)
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{
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struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
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int ret;
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/* nothing to do if HW shouldn't run */
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if (!local->open_count)
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goto wake_up;
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/* restart hardware */
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ret = drv_start(local);
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if (ret)
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return ret;
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wake_up:
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ieee802154_wake_queue(&local->hw);
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local->suspended = false;
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return 0;
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}
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#else
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#define ieee802154_suspend NULL
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#define ieee802154_resume NULL
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#endif
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static int
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ieee802154_add_iface(struct wpan_phy *phy, const char *name,
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unsigned char name_assign_type,
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enum nl802154_iftype type, __le64 extended_addr)
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{
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struct ieee802154_local *local = wpan_phy_priv(phy);
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struct net_device *err;
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err = ieee802154_if_add(local, name, name_assign_type, type,
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extended_addr);
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return PTR_ERR_OR_ZERO(err);
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}
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static int
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ieee802154_del_iface(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev)
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{
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ieee802154_if_remove(IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev));
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return 0;
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}
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static int
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ieee802154_set_channel(struct wpan_phy *wpan_phy, u8 page, u8 channel)
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{
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struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
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int ret;
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ASSERT_RTNL();
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if (wpan_phy->current_page == page &&
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wpan_phy->current_channel == channel)
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return 0;
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ret = drv_set_channel(local, page, channel);
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if (!ret) {
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wpan_phy->current_page = page;
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wpan_phy->current_channel = channel;
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}
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return ret;
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}
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static int
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ieee802154_set_cca_mode(struct wpan_phy *wpan_phy,
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const struct wpan_phy_cca *cca)
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{
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struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
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int ret;
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ASSERT_RTNL();
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if (wpan_phy_cca_cmp(&wpan_phy->cca, cca))
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return 0;
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ret = drv_set_cca_mode(local, cca);
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if (!ret)
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wpan_phy->cca = *cca;
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return ret;
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}
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static int
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ieee802154_set_cca_ed_level(struct wpan_phy *wpan_phy, s32 ed_level)
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{
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struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
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int ret;
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ASSERT_RTNL();
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if (wpan_phy->cca_ed_level == ed_level)
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return 0;
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ret = drv_set_cca_ed_level(local, ed_level);
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if (!ret)
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wpan_phy->cca_ed_level = ed_level;
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return ret;
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}
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static int
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ieee802154_set_tx_power(struct wpan_phy *wpan_phy, s32 power)
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{
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struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
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int ret;
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ASSERT_RTNL();
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if (wpan_phy->transmit_power == power)
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return 0;
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ret = drv_set_tx_power(local, power);
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if (!ret)
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wpan_phy->transmit_power = power;
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return ret;
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}
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static int
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ieee802154_set_pan_id(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
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__le16 pan_id)
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{
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int ret;
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ASSERT_RTNL();
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if (wpan_dev->pan_id == pan_id)
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return 0;
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ret = mac802154_wpan_update_llsec(wpan_dev->netdev);
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if (!ret)
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wpan_dev->pan_id = pan_id;
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return ret;
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}
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static int
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ieee802154_set_backoff_exponent(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev,
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u8 min_be, u8 max_be)
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{
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ASSERT_RTNL();
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wpan_dev->min_be = min_be;
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wpan_dev->max_be = max_be;
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return 0;
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}
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static int
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ieee802154_set_short_addr(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
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__le16 short_addr)
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{
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ASSERT_RTNL();
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wpan_dev->short_addr = short_addr;
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return 0;
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}
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static int
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ieee802154_set_max_csma_backoffs(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev,
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u8 max_csma_backoffs)
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{
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ASSERT_RTNL();
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wpan_dev->csma_retries = max_csma_backoffs;
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return 0;
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}
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static int
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ieee802154_set_max_frame_retries(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev,
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s8 max_frame_retries)
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{
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ASSERT_RTNL();
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wpan_dev->frame_retries = max_frame_retries;
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return 0;
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}
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static int
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ieee802154_set_lbt_mode(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
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bool mode)
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{
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ASSERT_RTNL();
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wpan_dev->lbt = mode;
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return 0;
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}
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static int
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ieee802154_set_ackreq_default(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev, bool ackreq)
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{
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ASSERT_RTNL();
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wpan_dev->ackreq = ackreq;
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return 0;
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}
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#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
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static void
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ieee802154_get_llsec_table(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev,
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struct ieee802154_llsec_table **table)
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{
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struct net_device *dev = wpan_dev->netdev;
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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*table = &sdata->sec.table;
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}
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static void
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ieee802154_lock_llsec_table(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev)
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{
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struct net_device *dev = wpan_dev->netdev;
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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mutex_lock(&sdata->sec_mtx);
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}
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static void
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ieee802154_unlock_llsec_table(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev)
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{
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struct net_device *dev = wpan_dev->netdev;
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struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
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mutex_unlock(&sdata->sec_mtx);
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}
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static int
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ieee802154_set_llsec_params(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_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 net_device *dev = wpan_dev->netdev;
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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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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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static int
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ieee802154_get_llsec_params(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev,
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struct ieee802154_llsec_params *params)
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{
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struct net_device *dev = wpan_dev->netdev;
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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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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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static int
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ieee802154_add_llsec_key(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_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 net_device *dev = wpan_dev->netdev;
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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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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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static int
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ieee802154_del_llsec_key(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
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const struct ieee802154_llsec_key_id *id)
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{
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struct net_device *dev = wpan_dev->netdev;
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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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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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static int
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ieee802154_add_seclevel(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
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const struct ieee802154_llsec_seclevel *sl)
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{
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struct net_device *dev = wpan_dev->netdev;
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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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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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static int
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ieee802154_del_seclevel(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
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const struct ieee802154_llsec_seclevel *sl)
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{
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struct net_device *dev = wpan_dev->netdev;
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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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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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static int
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ieee802154_add_device(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
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const struct ieee802154_llsec_device *dev_desc)
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{
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struct net_device *dev = wpan_dev->netdev;
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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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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_dev_add(&sdata->sec, dev_desc);
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mutex_unlock(&sdata->sec_mtx);
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return res;
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}
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static int
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ieee802154_del_device(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
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__le64 extended_addr)
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{
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struct net_device *dev = wpan_dev->netdev;
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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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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_dev_del(&sdata->sec, extended_addr);
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mutex_unlock(&sdata->sec_mtx);
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return res;
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}
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static int
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ieee802154_add_devkey(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
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__le64 extended_addr,
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const struct ieee802154_llsec_device_key *key)
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{
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struct net_device *dev = wpan_dev->netdev;
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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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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_devkey_add(&sdata->sec, extended_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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static int
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ieee802154_del_devkey(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
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__le64 extended_addr,
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const struct ieee802154_llsec_device_key *key)
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{
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struct net_device *dev = wpan_dev->netdev;
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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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mutex_lock(&sdata->sec_mtx);
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res = mac802154_llsec_devkey_del(&sdata->sec, extended_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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#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
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const struct cfg802154_ops mac802154_config_ops = {
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.add_virtual_intf_deprecated = ieee802154_add_iface_deprecated,
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.del_virtual_intf_deprecated = ieee802154_del_iface_deprecated,
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.suspend = ieee802154_suspend,
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.resume = ieee802154_resume,
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.add_virtual_intf = ieee802154_add_iface,
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.del_virtual_intf = ieee802154_del_iface,
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.set_channel = ieee802154_set_channel,
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.set_cca_mode = ieee802154_set_cca_mode,
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.set_cca_ed_level = ieee802154_set_cca_ed_level,
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.set_tx_power = ieee802154_set_tx_power,
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.set_pan_id = ieee802154_set_pan_id,
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.set_short_addr = ieee802154_set_short_addr,
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.set_backoff_exponent = ieee802154_set_backoff_exponent,
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.set_max_csma_backoffs = ieee802154_set_max_csma_backoffs,
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.set_max_frame_retries = ieee802154_set_max_frame_retries,
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.set_lbt_mode = ieee802154_set_lbt_mode,
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.set_ackreq_default = ieee802154_set_ackreq_default,
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#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
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.get_llsec_table = ieee802154_get_llsec_table,
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.lock_llsec_table = ieee802154_lock_llsec_table,
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.unlock_llsec_table = ieee802154_unlock_llsec_table,
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/* TODO above */
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.set_llsec_params = ieee802154_set_llsec_params,
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.get_llsec_params = ieee802154_get_llsec_params,
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.add_llsec_key = ieee802154_add_llsec_key,
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.del_llsec_key = ieee802154_del_llsec_key,
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.add_seclevel = ieee802154_add_seclevel,
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.del_seclevel = ieee802154_del_seclevel,
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.add_device = ieee802154_add_device,
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.del_device = ieee802154_del_device,
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.add_devkey = ieee802154_add_devkey,
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.del_devkey = ieee802154_del_devkey,
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#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
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};
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