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 */ 32struct 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 64enum { 65 IEEE802154_RX_MSG = 1, 66}; 67 68enum 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 */ 78struct 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 spinlock_t mib_lock; 90 91 /* protects sec from concurrent access by netlink. access by 92 * encrypt/decrypt/header_create safe without additional protection. 93 */ 94 struct mutex sec_mtx; 95 96 struct mac802154_llsec sec; 97 /* must be last, dynamically sized area in this! */ 98 struct ieee802154_vif vif; 99}; 100 101#define MAC802154_CHAN_NONE 0xff /* No channel is assigned */ 102 103/* utility functions/constants */ 104extern const void *const mac802154_wpan_phy_privid; /* for wpan_phy privid */ 105 106static inline struct ieee802154_local * 107hw_to_local(struct ieee802154_hw *hw) 108{ 109 return container_of(hw, struct ieee802154_local, hw); 110} 111 112static inline struct ieee802154_sub_if_data * 113IEEE802154_DEV_TO_SUB_IF(const struct net_device *dev) 114{ 115 return netdev_priv(dev); 116} 117 118static inline struct ieee802154_sub_if_data * 119IEEE802154_WPAN_DEV_TO_SUB_IF(struct wpan_dev *wpan_dev) 120{ 121 return container_of(wpan_dev, struct ieee802154_sub_if_data, wpan_dev); 122} 123 124static inline bool 125ieee802154_sdata_running(struct ieee802154_sub_if_data *sdata) 126{ 127 return test_bit(SDATA_STATE_RUNNING, &sdata->state); 128} 129 130extern struct ieee802154_mlme_ops mac802154_mlme_wpan; 131 132netdev_tx_t 133ieee802154_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev); 134netdev_tx_t 135ieee802154_subif_start_xmit(struct sk_buff *skb, struct net_device *dev); 136enum hrtimer_restart ieee802154_xmit_ifs_timer(struct hrtimer *timer); 137 138/* MIB callbacks */ 139void mac802154_dev_set_short_addr(struct net_device *dev, __le16 val); 140__le16 mac802154_dev_get_short_addr(const struct net_device *dev); 141__le16 mac802154_dev_get_pan_id(const struct net_device *dev); 142void mac802154_dev_set_pan_id(struct net_device *dev, __le16 val); 143void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan); 144u8 mac802154_dev_get_dsn(const struct net_device *dev); 145 146int mac802154_get_params(struct net_device *dev, 147 struct ieee802154_llsec_params *params); 148int mac802154_set_params(struct net_device *dev, 149 const struct ieee802154_llsec_params *params, 150 int changed); 151 152int mac802154_add_key(struct net_device *dev, 153 const struct ieee802154_llsec_key_id *id, 154 const struct ieee802154_llsec_key *key); 155int mac802154_del_key(struct net_device *dev, 156 const struct ieee802154_llsec_key_id *id); 157 158int mac802154_add_dev(struct net_device *dev, 159 const struct ieee802154_llsec_device *llsec_dev); 160int mac802154_del_dev(struct net_device *dev, __le64 dev_addr); 161 162int mac802154_add_devkey(struct net_device *dev, 163 __le64 device_addr, 164 const struct ieee802154_llsec_device_key *key); 165int mac802154_del_devkey(struct net_device *dev, 166 __le64 device_addr, 167 const struct ieee802154_llsec_device_key *key); 168 169int mac802154_add_seclevel(struct net_device *dev, 170 const struct ieee802154_llsec_seclevel *sl); 171int mac802154_del_seclevel(struct net_device *dev, 172 const struct ieee802154_llsec_seclevel *sl); 173 174void mac802154_lock_table(struct net_device *dev); 175void mac802154_get_table(struct net_device *dev, 176 struct ieee802154_llsec_table **t); 177void mac802154_unlock_table(struct net_device *dev); 178 179/* interface handling */ 180int ieee802154_iface_init(void); 181void ieee802154_iface_exit(void); 182void ieee802154_if_remove(struct ieee802154_sub_if_data *sdata); 183struct net_device * 184ieee802154_if_add(struct ieee802154_local *local, const char *name, 185 unsigned char name_assign_type, enum nl802154_iftype type, 186 __le64 extended_addr); 187void ieee802154_remove_interfaces(struct ieee802154_local *local); 188 189#endif /* __IEEE802154_I_H */ 190