1 /* 2 * Copyright (C) 2007-2012 Siemens AG 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 6 * as published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 * 13 * Written by: 14 * Pavel Smolenskiy <pavel.smolenskiy@gmail.com> 15 * Maxim Gorbachyov <maxim.gorbachev@siemens.com> 16 * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> 17 * Alexander Smirnov <alex.bluesman.smirnov@gmail.com> 18 */ 19 #ifndef __IEEE802154_I_H 20 #define __IEEE802154_I_H 21 22 #include <linux/interrupt.h> 23 #include <linux/mutex.h> 24 #include <linux/hrtimer.h> 25 #include <net/cfg802154.h> 26 #include <net/mac802154.h> 27 #include <net/nl802154.h> 28 #include <net/ieee802154_netdev.h> 29 30 #include "llsec.h" 31 32 /* mac802154 device private data */ 33 struct ieee802154_local { 34 struct ieee802154_hw hw; 35 const struct ieee802154_ops *ops; 36 37 /* ieee802154 phy */ 38 struct wpan_phy *phy; 39 40 int open_count; 41 42 /* As in mac80211 slaves list is modified: 43 * 1) under the RTNL 44 * 2) protected by slaves_mtx; 45 * 3) in an RCU manner 46 * 47 * So atomic readers can use any of this protection methods. 48 */ 49 struct list_head interfaces; 50 struct mutex iflist_mtx; 51 52 /* This one is used for scanning and other jobs not to be interfered 53 * with serial driver. 54 */ 55 struct workqueue_struct *workqueue; 56 57 struct hrtimer ifs_timer; 58 59 bool started; 60 bool suspended; 61 62 struct tasklet_struct tasklet; 63 struct sk_buff_head skb_queue; 64 65 struct sk_buff *tx_skb; 66 struct work_struct tx_work; 67 }; 68 69 enum { 70 IEEE802154_RX_MSG = 1, 71 }; 72 73 enum ieee802154_sdata_state_bits { 74 SDATA_STATE_RUNNING, 75 }; 76 77 /* Slave interface definition. 78 * 79 * Slaves represent typical network interfaces available from userspace. 80 * Each ieee802154 device/transceiver may have several slaves and able 81 * to be associated with several networks at the same time. 82 */ 83 struct ieee802154_sub_if_data { 84 struct list_head list; /* the ieee802154_priv->slaves list */ 85 86 struct wpan_dev wpan_dev; 87 88 struct ieee802154_local *local; 89 struct net_device *dev; 90 91 unsigned long state; 92 char name[IFNAMSIZ]; 93 94 /* protects sec from concurrent access by netlink. access by 95 * encrypt/decrypt/header_create safe without additional protection. 96 */ 97 struct mutex sec_mtx; 98 99 struct mac802154_llsec sec; 100 }; 101 102 /* utility functions/constants */ 103 extern const void *const mac802154_wpan_phy_privid; /* for wpan_phy privid */ 104 105 static inline struct ieee802154_local * 106 hw_to_local(struct ieee802154_hw *hw) 107 { 108 return container_of(hw, struct ieee802154_local, hw); 109 } 110 111 static inline struct ieee802154_sub_if_data * 112 IEEE802154_DEV_TO_SUB_IF(const struct net_device *dev) 113 { 114 return netdev_priv(dev); 115 } 116 117 static inline struct ieee802154_sub_if_data * 118 IEEE802154_WPAN_DEV_TO_SUB_IF(struct wpan_dev *wpan_dev) 119 { 120 return container_of(wpan_dev, struct ieee802154_sub_if_data, wpan_dev); 121 } 122 123 static inline bool 124 ieee802154_sdata_running(struct ieee802154_sub_if_data *sdata) 125 { 126 return test_bit(SDATA_STATE_RUNNING, &sdata->state); 127 } 128 129 extern struct ieee802154_mlme_ops mac802154_mlme_wpan; 130 131 void ieee802154_rx(struct ieee802154_local *local, struct sk_buff *skb); 132 void ieee802154_xmit_worker(struct work_struct *work); 133 netdev_tx_t 134 ieee802154_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev); 135 netdev_tx_t 136 ieee802154_subif_start_xmit(struct sk_buff *skb, struct net_device *dev); 137 enum hrtimer_restart ieee802154_xmit_ifs_timer(struct hrtimer *timer); 138 139 /* MIB callbacks */ 140 void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan); 141 142 int mac802154_get_params(struct net_device *dev, 143 struct ieee802154_llsec_params *params); 144 int mac802154_set_params(struct net_device *dev, 145 const struct ieee802154_llsec_params *params, 146 int changed); 147 148 int mac802154_add_key(struct net_device *dev, 149 const struct ieee802154_llsec_key_id *id, 150 const struct ieee802154_llsec_key *key); 151 int mac802154_del_key(struct net_device *dev, 152 const struct ieee802154_llsec_key_id *id); 153 154 int mac802154_add_dev(struct net_device *dev, 155 const struct ieee802154_llsec_device *llsec_dev); 156 int mac802154_del_dev(struct net_device *dev, __le64 dev_addr); 157 158 int mac802154_add_devkey(struct net_device *dev, 159 __le64 device_addr, 160 const struct ieee802154_llsec_device_key *key); 161 int mac802154_del_devkey(struct net_device *dev, 162 __le64 device_addr, 163 const struct ieee802154_llsec_device_key *key); 164 165 int mac802154_add_seclevel(struct net_device *dev, 166 const struct ieee802154_llsec_seclevel *sl); 167 int mac802154_del_seclevel(struct net_device *dev, 168 const struct ieee802154_llsec_seclevel *sl); 169 170 void mac802154_lock_table(struct net_device *dev); 171 void mac802154_get_table(struct net_device *dev, 172 struct ieee802154_llsec_table **t); 173 void mac802154_unlock_table(struct net_device *dev); 174 175 int mac802154_wpan_update_llsec(struct net_device *dev); 176 177 /* interface handling */ 178 int ieee802154_iface_init(void); 179 void ieee802154_iface_exit(void); 180 void ieee802154_if_remove(struct ieee802154_sub_if_data *sdata); 181 struct net_device * 182 ieee802154_if_add(struct ieee802154_local *local, const char *name, 183 unsigned char name_assign_type, enum nl802154_iftype type, 184 __le64 extended_addr); 185 void ieee802154_remove_interfaces(struct ieee802154_local *local); 186 void ieee802154_stop_device(struct ieee802154_local *local); 187 188 #endif /* __IEEE802154_I_H */ 189