| 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 */ |