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 /* must be last, dynamically sized area in this! */ 96 struct ieee802154_vif vif; 97 }; 98 99 #define MAC802154_CHAN_NONE 0xff /* No channel is assigned */ 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 netdev_tx_t 131 ieee802154_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev); 132 netdev_tx_t 133 ieee802154_subif_start_xmit(struct sk_buff *skb, struct net_device *dev); 134 enum hrtimer_restart ieee802154_xmit_ifs_timer(struct hrtimer *timer); 135 136 /* MIB callbacks */ 137 void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan); 138 139 int mac802154_get_params(struct net_device *dev, 140 struct ieee802154_llsec_params *params); 141 int mac802154_set_params(struct net_device *dev, 142 const struct ieee802154_llsec_params *params, 143 int changed); 144 145 int mac802154_add_key(struct net_device *dev, 146 const struct ieee802154_llsec_key_id *id, 147 const struct ieee802154_llsec_key *key); 148 int mac802154_del_key(struct net_device *dev, 149 const struct ieee802154_llsec_key_id *id); 150 151 int mac802154_add_dev(struct net_device *dev, 152 const struct ieee802154_llsec_device *llsec_dev); 153 int mac802154_del_dev(struct net_device *dev, __le64 dev_addr); 154 155 int mac802154_add_devkey(struct net_device *dev, 156 __le64 device_addr, 157 const struct ieee802154_llsec_device_key *key); 158 int mac802154_del_devkey(struct net_device *dev, 159 __le64 device_addr, 160 const struct ieee802154_llsec_device_key *key); 161 162 int mac802154_add_seclevel(struct net_device *dev, 163 const struct ieee802154_llsec_seclevel *sl); 164 int mac802154_del_seclevel(struct net_device *dev, 165 const struct ieee802154_llsec_seclevel *sl); 166 167 void mac802154_lock_table(struct net_device *dev); 168 void mac802154_get_table(struct net_device *dev, 169 struct ieee802154_llsec_table **t); 170 void mac802154_unlock_table(struct net_device *dev); 171 172 /* interface handling */ 173 int ieee802154_iface_init(void); 174 void ieee802154_iface_exit(void); 175 void ieee802154_if_remove(struct ieee802154_sub_if_data *sdata); 176 struct net_device * 177 ieee802154_if_add(struct ieee802154_local *local, const char *name, 178 unsigned char name_assign_type, enum nl802154_iftype type, 179 __le64 extended_addr); 180 void ieee802154_remove_interfaces(struct ieee802154_local *local); 181 182 #endif /* __IEEE802154_I_H */ 183