1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (C) 2007-2012 Siemens AG 4 * 5 * Written by: 6 * Pavel Smolenskiy <pavel.smolenskiy@gmail.com> 7 * Maxim Gorbachyov <maxim.gorbachev@siemens.com> 8 * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> 9 * Alexander Smirnov <alex.bluesman.smirnov@gmail.com> 10 */ 11 #ifndef __IEEE802154_I_H 12 #define __IEEE802154_I_H 13 14 #include <linux/interrupt.h> 15 #include <linux/mutex.h> 16 #include <linux/hrtimer.h> 17 #include <net/cfg802154.h> 18 #include <net/mac802154.h> 19 #include <net/nl802154.h> 20 #include <net/ieee802154_netdev.h> 21 22 #include "llsec.h" 23 24 /* mac802154 device private data */ 25 struct ieee802154_local { 26 struct ieee802154_hw hw; 27 const struct ieee802154_ops *ops; 28 29 /* ieee802154 phy */ 30 struct wpan_phy *phy; 31 32 int open_count; 33 34 /* As in mac80211 slaves list is modified: 35 * 1) under the RTNL 36 * 2) protected by slaves_mtx; 37 * 3) in an RCU manner 38 * 39 * So atomic readers can use any of this protection methods. 40 */ 41 struct list_head interfaces; 42 struct mutex iflist_mtx; 43 44 /* This one is used for scanning and other jobs not to be interfered 45 * with serial driver. 46 */ 47 struct workqueue_struct *workqueue; 48 49 struct hrtimer ifs_timer; 50 51 bool started; 52 bool suspended; 53 54 struct tasklet_struct tasklet; 55 struct sk_buff_head skb_queue; 56 57 struct sk_buff *tx_skb; 58 struct work_struct tx_work; 59 }; 60 61 enum { 62 IEEE802154_RX_MSG = 1, 63 }; 64 65 enum ieee802154_sdata_state_bits { 66 SDATA_STATE_RUNNING, 67 }; 68 69 /* Slave interface definition. 70 * 71 * Slaves represent typical network interfaces available from userspace. 72 * Each ieee802154 device/transceiver may have several slaves and able 73 * to be associated with several networks at the same time. 74 */ 75 struct ieee802154_sub_if_data { 76 struct list_head list; /* the ieee802154_priv->slaves list */ 77 78 struct wpan_dev wpan_dev; 79 80 struct ieee802154_local *local; 81 struct net_device *dev; 82 83 unsigned long state; 84 char name[IFNAMSIZ]; 85 86 /* protects sec from concurrent access by netlink. access by 87 * encrypt/decrypt/header_create safe without additional protection. 88 */ 89 struct mutex sec_mtx; 90 91 struct mac802154_llsec sec; 92 }; 93 94 /* utility functions/constants */ 95 extern const void *const mac802154_wpan_phy_privid; /* for wpan_phy privid */ 96 97 static inline struct ieee802154_local * 98 hw_to_local(struct ieee802154_hw *hw) 99 { 100 return container_of(hw, struct ieee802154_local, hw); 101 } 102 103 static inline struct ieee802154_sub_if_data * 104 IEEE802154_DEV_TO_SUB_IF(const struct net_device *dev) 105 { 106 return netdev_priv(dev); 107 } 108 109 static inline struct ieee802154_sub_if_data * 110 IEEE802154_WPAN_DEV_TO_SUB_IF(struct wpan_dev *wpan_dev) 111 { 112 return container_of(wpan_dev, struct ieee802154_sub_if_data, wpan_dev); 113 } 114 115 static inline bool 116 ieee802154_sdata_running(struct ieee802154_sub_if_data *sdata) 117 { 118 return test_bit(SDATA_STATE_RUNNING, &sdata->state); 119 } 120 121 extern struct ieee802154_mlme_ops mac802154_mlme_wpan; 122 123 void ieee802154_rx(struct ieee802154_local *local, struct sk_buff *skb); 124 void ieee802154_xmit_worker(struct work_struct *work); 125 netdev_tx_t 126 ieee802154_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev); 127 netdev_tx_t 128 ieee802154_subif_start_xmit(struct sk_buff *skb, struct net_device *dev); 129 enum hrtimer_restart ieee802154_xmit_ifs_timer(struct hrtimer *timer); 130 131 /* MIB callbacks */ 132 void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan); 133 134 int mac802154_get_params(struct net_device *dev, 135 struct ieee802154_llsec_params *params); 136 int mac802154_set_params(struct net_device *dev, 137 const struct ieee802154_llsec_params *params, 138 int changed); 139 140 int mac802154_add_key(struct net_device *dev, 141 const struct ieee802154_llsec_key_id *id, 142 const struct ieee802154_llsec_key *key); 143 int mac802154_del_key(struct net_device *dev, 144 const struct ieee802154_llsec_key_id *id); 145 146 int mac802154_add_dev(struct net_device *dev, 147 const struct ieee802154_llsec_device *llsec_dev); 148 int mac802154_del_dev(struct net_device *dev, __le64 dev_addr); 149 150 int mac802154_add_devkey(struct net_device *dev, 151 __le64 device_addr, 152 const struct ieee802154_llsec_device_key *key); 153 int mac802154_del_devkey(struct net_device *dev, 154 __le64 device_addr, 155 const struct ieee802154_llsec_device_key *key); 156 157 int mac802154_add_seclevel(struct net_device *dev, 158 const struct ieee802154_llsec_seclevel *sl); 159 int mac802154_del_seclevel(struct net_device *dev, 160 const struct ieee802154_llsec_seclevel *sl); 161 162 void mac802154_lock_table(struct net_device *dev); 163 void mac802154_get_table(struct net_device *dev, 164 struct ieee802154_llsec_table **t); 165 void mac802154_unlock_table(struct net_device *dev); 166 167 int mac802154_wpan_update_llsec(struct net_device *dev); 168 169 /* interface handling */ 170 int ieee802154_iface_init(void); 171 void ieee802154_iface_exit(void); 172 void ieee802154_if_remove(struct ieee802154_sub_if_data *sdata); 173 struct net_device * 174 ieee802154_if_add(struct ieee802154_local *local, const char *name, 175 unsigned char name_assign_type, enum nl802154_iftype type, 176 __le64 extended_addr); 177 void ieee802154_remove_interfaces(struct ieee802154_local *local); 178 void ieee802154_stop_device(struct ieee802154_local *local); 179 180 #endif /* __IEEE802154_I_H */ 181