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