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/* SPDX-License-Identifier: GPL-2.0-only / / * Copyright (C) 2007, 2008, 2009 Siemens AG * * Written by: * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> / #ifndef __NET_CFG802154_H #define __NET_CFG802154_H #include <linux/ieee802154.h> #include <linux/netdevice.h> #include <linux/mutex.h> #include <linux/bug.h> #include <net/nl802154.h> struct wpan_phy; struct wpan_phy_cca; #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL struct ieee802154_llsec_device_key; struct ieee802154_llsec_seclevel; struct ieee802154_llsec_params; struct ieee802154_llsec_device; struct ieee802154_llsec_table; struct ieee802154_llsec_key_id; struct ieee802154_llsec_key; #endif / CONFIG_IEEE802154_NL802154_EXPERIMENTAL / struct cfg802154_ops { struct net_device (add_virtual_intf_deprecated)(struct wpan_phy wpan_phy, const char name, unsigned char name_assign_type, int type); void (del_virtual_intf_deprecated)(struct wpan_phy wpan_phy, struct net_device dev); int (suspend)(struct wpan_phy wpan_phy); int (resume)(struct wpan_phy wpan_phy); int (add_virtual_intf)(struct wpan_phy wpan_phy, const char name, unsigned char name_assign_type, enum nl802154_iftype type, __le64 extended_addr); int (del_virtual_intf)(struct wpan_phy wpan_phy, struct wpan_dev wpan_dev); int (set_channel)(struct wpan_phy wpan_phy, u8 page, u8 channel); int (set_cca_mode)(struct wpan_phy wpan_phy, const struct wpan_phy_cca cca); int (set_cca_ed_level)(struct wpan_phy wpan_phy, s32 ed_level); int (set_tx_power)(struct wpan_phy wpan_phy, s32 power); int (set_pan_id)(struct wpan_phy wpan_phy, struct wpan_dev wpan_dev, __le16 pan_id); int (set_short_addr)(struct wpan_phy wpan_phy, struct wpan_dev wpan_dev, __le16 short_addr); int (set_backoff_exponent)(struct wpan_phy wpan_phy, struct wpan_dev wpan_dev, u8 min_be, u8 max_be); int (set_max_csma_backoffs)(struct wpan_phy wpan_phy, struct wpan_dev wpan_dev, u8 max_csma_backoffs); int (set_max_frame_retries)(struct wpan_phy wpan_phy, struct wpan_dev wpan_dev, s8 max_frame_retries); int (set_lbt_mode)(struct wpan_phy wpan_phy, struct wpan_dev wpan_dev, bool mode); int (set_ackreq_default)(struct wpan_phy wpan_phy, struct wpan_dev wpan_dev, bool ackreq); #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL void (get_llsec_table)(struct wpan_phy wpan_phy, struct wpan_dev wpan_dev, struct ieee802154_llsec_table table); void (lock_llsec_table)(struct wpan_phy wpan_phy, struct wpan_dev wpan_dev); void (unlock_llsec_table)(struct wpan_phy wpan_phy, struct wpan_dev wpan_dev); / TODO remove locking/get table callbacks, this is part of the * nl802154 interface and should be accessible from ieee802154 layer. / int (get_llsec_params)(struct wpan_phy wpan_phy, struct wpan_dev wpan_dev, struct ieee802154_llsec_params params); int (set_llsec_params)(struct wpan_phy wpan_phy, struct wpan_dev wpan_dev, const struct ieee802154_llsec_params params, int changed); int (add_llsec_key)(struct wpan_phy wpan_phy, struct wpan_dev wpan_dev, const struct ieee802154_llsec_key_id id, const struct ieee802154_llsec_key key); int (del_llsec_key)(struct wpan_phy wpan_phy, struct wpan_dev wpan_dev, const struct ieee802154_llsec_key_id id); int (add_seclevel)(struct wpan_phy wpan_phy, struct wpan_dev wpan_dev, const struct ieee802154_llsec_seclevel sl); int (del_seclevel)(struct wpan_phy wpan_phy, struct wpan_dev wpan_dev, const struct ieee802154_llsec_seclevel sl); int (add_device)(struct wpan_phy wpan_phy, struct wpan_dev wpan_dev, const struct ieee802154_llsec_device dev); int (del_device)(struct wpan_phy wpan_phy, struct wpan_dev wpan_dev, __le64 extended_addr); int (add_devkey)(struct wpan_phy wpan_phy, struct wpan_dev wpan_dev, __le64 extended_addr, const struct ieee802154_llsec_device_key key); int (del_devkey)(struct wpan_phy wpan_phy, struct wpan_dev wpan_dev, __le64 extended_addr, const struct ieee802154_llsec_device_key key); #endif / CONFIG_IEEE802154_NL802154_EXPERIMENTAL / }; static inline bool wpan_phy_supported_bool(bool b, enum nl802154_supported_bool_states st) { switch (st) { case NL802154_SUPPORTED_BOOL_TRUE: return b; case NL802154_SUPPORTED_BOOL_FALSE: return !b; case NL802154_SUPPORTED_BOOL_BOTH: return true; default: WARN_ON(1); } return false; } struct wpan_phy_supported { u32 channels[IEEE802154_MAX_PAGE + 1], cca_modes, cca_opts, iftypes; enum nl802154_supported_bool_states lbt; u8 min_minbe, max_minbe, min_maxbe, max_maxbe, min_csma_backoffs, max_csma_backoffs; s8 min_frame_retries, max_frame_retries; size_t tx_powers_size, cca_ed_levels_size; const s32 tx_powers, cca_ed_levels; }; struct wpan_phy_cca { enum nl802154_cca_modes mode; enum nl802154_cca_opts opt; }; static inline bool wpan_phy_cca_cmp(const struct wpan_phy_cca a, const struct wpan_phy_cca b) { if (a->mode != b->mode) return false; if (a->mode == NL802154_CCA_ENERGY_CARRIER) return a->opt == b->opt; return true; } /* * @WPAN_PHY_FLAG_TRANSMIT_POWER: Indicates that transceiver will support * transmit power setting. * @WPAN_PHY_FLAG_CCA_ED_LEVEL: Indicates that transceiver will support cca ed * level setting. * @WPAN_PHY_FLAG_CCA_MODE: Indicates that transceiver will support cca mode * setting. / enum wpan_phy_flags { WPAN_PHY_FLAG_TXPOWER = BIT(1), WPAN_PHY_FLAG_CCA_ED_LEVEL = BIT(2), WPAN_PHY_FLAG_CCA_MODE = BIT(3), }; struct wpan_phy { / If multiple wpan_phys are registered and you're handed e.g. * a regular netdev with assigned ieee802154_ptr, you won't * know whether it points to a wpan_phy your driver has registered * or not. Assign this to something global to your driver to * help determine whether you own this wpan_phy or not. / const void privid; u32 flags; /* * This is a PIB according to 802.15.4-2011. * We do not provide timing-related variables, as they * aren't used outside of driver / u8 current_channel; u8 current_page; struct wpan_phy_supported supported; / current transmit_power in mBm / s32 transmit_power; struct wpan_phy_cca cca; __le64 perm_extended_addr; / current cca ed threshold in mBm / s32 cca_ed_level; / PHY depended MAC PIB values / / 802.15.4 acronym: Tdsym in usec / u8 symbol_duration; / lifs and sifs periods timing / u16 lifs_period; u16 sifs_period; struct device dev; / the network namespace this phy lives in currently / possible_net_t _net; char priv[0] __aligned(NETDEV_ALIGN); }; static inline struct net wpan_phy_net(struct wpan_phy wpan_phy) { return read_pnet(&wpan_phy->_net); } static inline void wpan_phy_net_set(struct wpan_phy wpan_phy, struct net net) { write_pnet(&wpan_phy->_net, net); } struct ieee802154_addr { u8 mode; __le16 pan_id; union { __le16 short_addr; __le64 extended_addr; }; }; struct ieee802154_llsec_key_id { u8 mode; u8 id; union { struct ieee802154_addr device_addr; __le32 short_source; __le64 extended_source; }; }; #define IEEE802154_LLSEC_KEY_SIZE 16 struct ieee802154_llsec_key { u8 frame_types; u32 cmd_frame_ids; / TODO replace with NL802154_KEY_SIZE / u8 key[IEEE802154_LLSEC_KEY_SIZE]; }; struct ieee802154_llsec_key_entry { struct list_head list; struct ieee802154_llsec_key_id id; struct ieee802154_llsec_key key; }; struct ieee802154_llsec_params { bool enabled; __be32 frame_counter; u8 out_level; struct ieee802154_llsec_key_id out_key; __le64 default_key_source; __le16 pan_id; __le64 hwaddr; __le64 coord_hwaddr; __le16 coord_shortaddr; }; struct ieee802154_llsec_table { struct list_head keys; struct list_head devices; struct list_head security_levels; }; struct ieee802154_llsec_seclevel { struct list_head list; u8 frame_type; u8 cmd_frame_id; bool device_override; u32 sec_levels; }; struct ieee802154_llsec_device { struct list_head list; __le16 pan_id; __le16 short_addr; __le64 hwaddr; u32 frame_counter; bool seclevel_exempt; u8 key_mode; struct list_head keys; }; struct ieee802154_llsec_device_key { struct list_head list; struct ieee802154_llsec_key_id key_id; u32 frame_counter; }; struct wpan_dev_header_ops { /* TODO create callback currently assumes ieee802154_mac_cb inside * skb->cb. This should be changed to give these information as * parameter. / int (create)(struct sk_buff skb, struct net_device dev, const struct ieee802154_addr daddr, const struct ieee802154_addr saddr, unsigned int len); }; struct wpan_dev { struct wpan_phy wpan_phy; int iftype; / the remainder of this struct should be private to cfg802154 / struct list_head list; struct net_device netdev; const struct wpan_dev_header_ops header_ops; / lowpan interface, set when the wpan_dev belongs to one lowpan_dev / struct net_device lowpan_dev; u32 identifier; /* MAC PIB / __le16 pan_id; __le16 short_addr; __le64 extended_addr; / MAC BSN field / atomic_t bsn; / MAC DSN field / atomic_t dsn; u8 min_be; u8 max_be; u8 csma_retries; s8 frame_retries; bool lbt; bool promiscuous_mode; / fallback for acknowledgment bit setting / bool ackreq; }; #define to_phy(_dev) container_of(_dev, struct wpan_phy, dev) static inline int wpan_dev_hard_header(struct sk_buff skb, struct net_device dev, const struct ieee802154_addr daddr, const struct ieee802154_addr saddr, unsigned int len) { struct wpan_dev wpan_dev = dev->ieee802154_ptr; return wpan_dev->header_ops->create(skb, dev, daddr, saddr, len); } struct wpan_phy * wpan_phy_new(const struct cfg802154_ops ops, size_t priv_size); static inline void wpan_phy_set_dev(struct wpan_phy phy, struct device dev) { phy->dev.parent = dev; } int wpan_phy_register(struct wpan_phy phy); void wpan_phy_unregister(struct wpan_phy phy); void wpan_phy_free(struct wpan_phy phy); /* Same semantics as for class_for_each_device / int wpan_phy_for_each(int (fn)(struct wpan_phy phy, void data), void data); static inline void wpan_phy_priv(struct wpan_phy phy) { BUG_ON(!phy); return &phy->priv; } struct wpan_phy wpan_phy_find(const char str); static inline void wpan_phy_put(struct wpan_phy phy) { put_device(&phy->dev); } static inline const char wpan_phy_name(struct wpan_phy phy) { return dev_name(&phy->dev); } #endif /* __NET_CFG802154_H */

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