| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * Copyright (C) 2007-2012 Siemens AG |
| * |
| * Written by: |
| * Pavel Smolenskiy <pavel.smolenskiy@gmail.com> |
| * Maxim Gorbachyov <maxim.gorbachev@siemens.com> |
| * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> |
| * Alexander Smirnov <alex.bluesman.smirnov@gmail.com> |
| */ |
| #ifndef __IEEE802154_I_H |
| #define __IEEE802154_I_H |
| |
| #include <linux/interrupt.h> |
| #include <linux/mutex.h> |
| #include <linux/hrtimer.h> |
| #include <net/cfg802154.h> |
| #include <net/mac802154.h> |
| #include <net/nl802154.h> |
| #include <net/ieee802154_netdev.h> |
| |
| #include "llsec.h" |
| |
| /* mac802154 device private data */ |
| struct ieee802154_local { |
| struct ieee802154_hw hw; |
| const struct ieee802154_ops *ops; |
| |
| /* hardware address filter */ |
| struct ieee802154_hw_addr_filt addr_filt; |
| /* ieee802154 phy */ |
| struct wpan_phy *phy; |
| |
| int open_count; |
| |
| /* As in mac80211 slaves list is modified: |
| * 1) under the RTNL |
| * 2) protected by slaves_mtx; |
| * 3) in an RCU manner |
| * |
| * So atomic readers can use any of this protection methods. |
| */ |
| struct list_head interfaces; |
| struct mutex iflist_mtx; |
| |
| /* This one is used for scanning and other jobs not to be interfered |
| * with serial driver. |
| */ |
| struct workqueue_struct *workqueue; |
| |
| struct hrtimer ifs_timer; |
| |
| bool started; |
| bool suspended; |
| |
| struct tasklet_struct tasklet; |
| struct sk_buff_head skb_queue; |
| |
| struct sk_buff *tx_skb; |
| struct work_struct sync_tx_work; |
| /* A negative Linux error code or a null/positive MLME error status */ |
| int tx_result; |
| }; |
| |
| enum { |
| IEEE802154_RX_MSG = 1, |
| }; |
| |
| enum ieee802154_sdata_state_bits { |
| SDATA_STATE_RUNNING, |
| }; |
| |
| /* Slave interface definition. |
| * |
| * Slaves represent typical network interfaces available from userspace. |
| * Each ieee802154 device/transceiver may have several slaves and able |
| * to be associated with several networks at the same time. |
| */ |
| struct ieee802154_sub_if_data { |
| struct list_head list; /* the ieee802154_priv->slaves list */ |
| |
| struct wpan_dev wpan_dev; |
| |
| struct ieee802154_local *local; |
| struct net_device *dev; |
| |
| /* Each interface starts and works in nominal state at a given filtering |
| * level given by iface_default_filtering, which is set once for all at |
| * the interface creation and should not evolve over time. For some MAC |
| * operations however, the filtering level may change temporarily, as |
| * reflected in the required_filtering field. The actual filtering at |
| * the PHY level may be different and is shown in struct wpan_phy. |
| */ |
| enum ieee802154_filtering_level iface_default_filtering; |
| enum ieee802154_filtering_level required_filtering; |
| |
| unsigned long state; |
| char name[IFNAMSIZ]; |
| |
| /* protects sec from concurrent access by netlink. access by |
| * encrypt/decrypt/header_create safe without additional protection. |
| */ |
| struct mutex sec_mtx; |
| |
| struct mac802154_llsec sec; |
| }; |
| |
| /* utility functions/constants */ |
| extern const void *const mac802154_wpan_phy_privid; /* for wpan_phy privid */ |
| |
| static inline struct ieee802154_local * |
| hw_to_local(struct ieee802154_hw *hw) |
| { |
| return container_of(hw, struct ieee802154_local, hw); |
| } |
| |
| static inline struct ieee802154_sub_if_data * |
| IEEE802154_DEV_TO_SUB_IF(const struct net_device *dev) |
| { |
| return netdev_priv(dev); |
| } |
| |
| static inline struct ieee802154_sub_if_data * |
| IEEE802154_WPAN_DEV_TO_SUB_IF(struct wpan_dev *wpan_dev) |
| { |
| return container_of(wpan_dev, struct ieee802154_sub_if_data, wpan_dev); |
| } |
| |
| static inline bool |
| ieee802154_sdata_running(struct ieee802154_sub_if_data *sdata) |
| { |
| return test_bit(SDATA_STATE_RUNNING, &sdata->state); |
| } |
| |
| extern struct ieee802154_mlme_ops mac802154_mlme_wpan; |
| |
| void ieee802154_rx(struct ieee802154_local *local, struct sk_buff *skb); |
| void ieee802154_xmit_sync_worker(struct work_struct *work); |
| int ieee802154_sync_and_hold_queue(struct ieee802154_local *local); |
| int ieee802154_mlme_op_pre(struct ieee802154_local *local); |
| int ieee802154_mlme_tx(struct ieee802154_local *local, |
| struct ieee802154_sub_if_data *sdata, |
| struct sk_buff *skb); |
| void ieee802154_mlme_op_post(struct ieee802154_local *local); |
| int ieee802154_mlme_tx_one(struct ieee802154_local *local, |
| struct ieee802154_sub_if_data *sdata, |
| struct sk_buff *skb); |
| netdev_tx_t |
| ieee802154_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev); |
| netdev_tx_t |
| ieee802154_subif_start_xmit(struct sk_buff *skb, struct net_device *dev); |
| enum hrtimer_restart ieee802154_xmit_ifs_timer(struct hrtimer *timer); |
| |
| /** |
| * ieee802154_hold_queue - hold ieee802154 queue |
| * @local: main mac object |
| * |
| * Hold a queue by incrementing an atomic counter and requesting the netif |
| * queues to be stopped. The queues cannot be woken up while the counter has not |
| * been reset with as any ieee802154_release_queue() calls as needed. |
| */ |
| void ieee802154_hold_queue(struct ieee802154_local *local); |
| |
| /** |
| * ieee802154_release_queue - release ieee802154 queue |
| * @local: main mac object |
| * |
| * Release a queue which is held by decrementing an atomic counter and wake it |
| * up only if the counter reaches 0. |
| */ |
| void ieee802154_release_queue(struct ieee802154_local *local); |
| |
| /** |
| * ieee802154_disable_queue - disable ieee802154 queue |
| * @local: main mac object |
| * |
| * When trying to sync the Tx queue, we cannot just stop the queue |
| * (which is basically a bit being set without proper lock handling) |
| * because it would be racy. We actually need to call netif_tx_disable() |
| * instead, which is done by this helper. Restarting the queue can |
| * however still be done with a regular wake call. |
| */ |
| void ieee802154_disable_queue(struct ieee802154_local *local); |
| |
| /* MIB callbacks */ |
| void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan); |
| |
| int mac802154_get_params(struct net_device *dev, |
| struct ieee802154_llsec_params *params); |
| int mac802154_set_params(struct net_device *dev, |
| const struct ieee802154_llsec_params *params, |
| int changed); |
| |
| int mac802154_add_key(struct net_device *dev, |
| const struct ieee802154_llsec_key_id *id, |
| const struct ieee802154_llsec_key *key); |
| int mac802154_del_key(struct net_device *dev, |
| const struct ieee802154_llsec_key_id *id); |
| |
| int mac802154_add_dev(struct net_device *dev, |
| const struct ieee802154_llsec_device *llsec_dev); |
| int mac802154_del_dev(struct net_device *dev, __le64 dev_addr); |
| |
| int mac802154_add_devkey(struct net_device *dev, |
| __le64 device_addr, |
| const struct ieee802154_llsec_device_key *key); |
| int mac802154_del_devkey(struct net_device *dev, |
| __le64 device_addr, |
| const struct ieee802154_llsec_device_key *key); |
| |
| int mac802154_add_seclevel(struct net_device *dev, |
| const struct ieee802154_llsec_seclevel *sl); |
| int mac802154_del_seclevel(struct net_device *dev, |
| const struct ieee802154_llsec_seclevel *sl); |
| |
| void mac802154_lock_table(struct net_device *dev); |
| void mac802154_get_table(struct net_device *dev, |
| struct ieee802154_llsec_table **t); |
| void mac802154_unlock_table(struct net_device *dev); |
| |
| int mac802154_wpan_update_llsec(struct net_device *dev); |
| |
| /* interface handling */ |
| int ieee802154_iface_init(void); |
| void ieee802154_iface_exit(void); |
| void ieee802154_if_remove(struct ieee802154_sub_if_data *sdata); |
| struct net_device * |
| ieee802154_if_add(struct ieee802154_local *local, const char *name, |
| unsigned char name_assign_type, enum nl802154_iftype type, |
| __le64 extended_addr); |
| void ieee802154_remove_interfaces(struct ieee802154_local *local); |
| void ieee802154_stop_device(struct ieee802154_local *local); |
| |
| #endif /* __IEEE802154_I_H */ |