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 60 struct tasklet_struct tasklet; 61 struct sk_buff_head skb_queue; 62 }; 63 64 enum { 65 IEEE802154_RX_MSG = 1, 66 }; 67 68 enum ieee802154_sdata_state_bits { 69 SDATA_STATE_RUNNING, 70 }; 71 72 /* Slave interface definition. 73 * 74 * Slaves represent typical network interfaces available from userspace. 75 * Each ieee802154 device/transceiver may have several slaves and able 76 * to be associated with several networks at the same time. 77 */ 78 struct ieee802154_sub_if_data { 79 struct list_head list; /* the ieee802154_priv->slaves list */ 80 81 struct wpan_dev wpan_dev; 82 83 struct ieee802154_local *local; 84 struct net_device *dev; 85 86 unsigned long state; 87 char name[IFNAMSIZ]; 88 89 /* protects sec from concurrent access by netlink. access by 90 * encrypt/decrypt/header_create safe without additional protection. 91 */ 92 struct mutex sec_mtx; 93 94 struct mac802154_llsec sec; 95 }; 96 97 #define MAC802154_CHAN_NONE 0xff /* No channel is assigned */ 98 99 /* utility functions/constants */ 100 extern const void *const mac802154_wpan_phy_privid; /* for wpan_phy privid */ 101 102 static inline struct ieee802154_local * 103 hw_to_local(struct ieee802154_hw *hw) 104 { 105 return container_of(hw, struct ieee802154_local, hw); 106 } 107 108 static inline struct ieee802154_sub_if_data * 109 IEEE802154_DEV_TO_SUB_IF(const struct net_device *dev) 110 { 111 return netdev_priv(dev); 112 } 113 114 static inline struct ieee802154_sub_if_data * 115 IEEE802154_WPAN_DEV_TO_SUB_IF(struct wpan_dev *wpan_dev) 116 { 117 return container_of(wpan_dev, struct ieee802154_sub_if_data, wpan_dev); 118 } 119 120 static inline bool 121 ieee802154_sdata_running(struct ieee802154_sub_if_data *sdata) 122 { 123 return test_bit(SDATA_STATE_RUNNING, &sdata->state); 124 } 125 126 extern struct ieee802154_mlme_ops mac802154_mlme_wpan; 127 128 netdev_tx_t 129 ieee802154_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev); 130 netdev_tx_t 131 ieee802154_subif_start_xmit(struct sk_buff *skb, struct net_device *dev); 132 enum hrtimer_restart ieee802154_xmit_ifs_timer(struct hrtimer *timer); 133 134 /* MIB callbacks */ 135 void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan); 136 137 int mac802154_get_params(struct net_device *dev, 138 struct ieee802154_llsec_params *params); 139 int mac802154_set_params(struct net_device *dev, 140 const struct ieee802154_llsec_params *params, 141 int changed); 142 143 int mac802154_add_key(struct net_device *dev, 144 const struct ieee802154_llsec_key_id *id, 145 const struct ieee802154_llsec_key *key); 146 int mac802154_del_key(struct net_device *dev, 147 const struct ieee802154_llsec_key_id *id); 148 149 int mac802154_add_dev(struct net_device *dev, 150 const struct ieee802154_llsec_device *llsec_dev); 151 int mac802154_del_dev(struct net_device *dev, __le64 dev_addr); 152 153 int mac802154_add_devkey(struct net_device *dev, 154 __le64 device_addr, 155 const struct ieee802154_llsec_device_key *key); 156 int mac802154_del_devkey(struct net_device *dev, 157 __le64 device_addr, 158 const struct ieee802154_llsec_device_key *key); 159 160 int mac802154_add_seclevel(struct net_device *dev, 161 const struct ieee802154_llsec_seclevel *sl); 162 int mac802154_del_seclevel(struct net_device *dev, 163 const struct ieee802154_llsec_seclevel *sl); 164 165 void mac802154_lock_table(struct net_device *dev); 166 void mac802154_get_table(struct net_device *dev, 167 struct ieee802154_llsec_table **t); 168 void mac802154_unlock_table(struct net_device *dev); 169 170 /* interface handling */ 171 int ieee802154_iface_init(void); 172 void ieee802154_iface_exit(void); 173 void ieee802154_if_remove(struct ieee802154_sub_if_data *sdata); 174 struct net_device * 175 ieee802154_if_add(struct ieee802154_local *local, const char *name, 176 unsigned char name_assign_type, enum nl802154_iftype type, 177 __le64 extended_addr); 178 void ieee802154_remove_interfaces(struct ieee802154_local *local); 179 180 #endif /* __IEEE802154_I_H */ 181