net/mac802154/ieee802154_i.h

   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 <net/mac802154.h>
  24 #include <net/ieee802154_netdev.h>
  25
  26 #include "llsec.h"
  27
  28 /* mac802154 device private data */
  29 struct ieee802154_local {
  30         struct ieee802154_hw hw;
  31         const struct ieee802154_ops *ops;
  32
  33         /* ieee802154 phy */
  34         struct wpan_phy *phy;
  35
  36         int open_count;
  37
  38         /* As in mac80211 slaves list is modified:
  39          * 1) under the RTNL
  40          * 2) protected by slaves_mtx;
  41          * 3) in an RCU manner
  42          *
  43          * So atomic readers can use any of this protection methods.
  44          */
  45         struct list_head        interfaces;
  46         struct mutex            iflist_mtx;
  47
  48         /* This one is used for scanning and other jobs not to be interfered
  49          * with serial driver.
  50          */
  51         struct workqueue_struct *workqueue;
  52
  53         bool started;
  54
  55         struct tasklet_struct tasklet;
  56         struct sk_buff_head skb_queue;
  57 };
  58
  59 enum {
  60         IEEE802154_RX_MSG        = 1,
  61 };
  62
  63 enum ieee802154_sdata_state_bits {
  64         SDATA_STATE_RUNNING,
  65 };
  66
  67 /* Slave interface definition.
  68  *
  69  * Slaves represent typical network interfaces available from userspace.
  70  * Each ieee802154 device/transceiver may have several slaves and able
  71  * to be associated with several networks at the same time.
  72  */
  73 struct ieee802154_sub_if_data {
  74         struct list_head list; /* the ieee802154_priv->slaves list */
  75
  76         struct ieee802154_local *local;
  77         struct net_device *dev;
  78
  79         int type;
  80         unsigned long state;
  81
  82         spinlock_t mib_lock;
  83
  84         __le16 pan_id;
  85         __le16 short_addr;
  86         __le64 extended_addr;
  87
  88         struct ieee802154_mac_params mac_params;
  89
  90         /* MAC BSN field */
  91         u8 bsn;
  92         /* MAC DSN field */
  93         u8 dsn;
  94
  95         /* protects sec from concurrent access by netlink. access by
  96          * encrypt/decrypt/header_create safe without additional protection.
  97          */
  98         struct mutex sec_mtx;
  99
 100         struct mac802154_llsec sec;
 101 };
 102
 103 #define MAC802154_CHAN_NONE             0xff /* No channel is assigned */
 104
 105 static inline struct ieee802154_local *
 106 hw_to_local(struct ieee802154_hw *hw)
 107 {
 108         return container_of(hw, struct ieee802154_local, hw);
 109 }
 110
 111 static inline struct ieee802154_sub_if_data *
 112 IEEE802154_DEV_TO_SUB_IF(const struct net_device *dev)
 113 {
 114         return netdev_priv(dev);
 115 }
 116
 117 static inline bool
 118 ieee802154_sdata_running(struct ieee802154_sub_if_data *sdata)
 119 {
 120         return test_bit(SDATA_STATE_RUNNING, &sdata->state);
 121 }
 122
 123 extern struct ieee802154_reduced_mlme_ops mac802154_mlme_reduced;
 124 extern struct ieee802154_mlme_ops mac802154_mlme_wpan;
 125
 126 void mac802154_monitor_setup(struct net_device *dev);
 127 netdev_tx_t
 128 ieee802154_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
 129
 130 void mac802154_wpan_setup(struct net_device *dev);
 131 netdev_tx_t
 132 ieee802154_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
 133
 134 /* MIB callbacks */
 135 void mac802154_dev_set_short_addr(struct net_device *dev, __le16 val);
 136 __le16 mac802154_dev_get_short_addr(const struct net_device *dev);
 137 void mac802154_dev_set_ieee_addr(struct net_device *dev);
 138 __le16 mac802154_dev_get_pan_id(const struct net_device *dev);
 139 void mac802154_dev_set_pan_id(struct net_device *dev, __le16 val);
 140 void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan);
 141 u8 mac802154_dev_get_dsn(const struct net_device *dev);
 142
 143 int mac802154_get_params(struct net_device *dev,
 144                          struct ieee802154_llsec_params *params);
 145 int mac802154_set_params(struct net_device *dev,
 146                          const struct ieee802154_llsec_params *params,
 147                          int changed);
 148
 149 int mac802154_add_key(struct net_device *dev,
 150                       const struct ieee802154_llsec_key_id *id,
 151                       const struct ieee802154_llsec_key *key);
 152 int mac802154_del_key(struct net_device *dev,
 153                       const struct ieee802154_llsec_key_id *id);
 154
 155 int mac802154_add_dev(struct net_device *dev,
 156                       const struct ieee802154_llsec_device *llsec_dev);
 157 int mac802154_del_dev(struct net_device *dev, __le64 dev_addr);
 158
 159 int mac802154_add_devkey(struct net_device *dev,
 160                          __le64 device_addr,
 161                          const struct ieee802154_llsec_device_key *key);
 162 int mac802154_del_devkey(struct net_device *dev,
 163                          __le64 device_addr,
 164                          const struct ieee802154_llsec_device_key *key);
 165
 166 int mac802154_add_seclevel(struct net_device *dev,
 167                            const struct ieee802154_llsec_seclevel *sl);
 168 int mac802154_del_seclevel(struct net_device *dev,
 169                            const struct ieee802154_llsec_seclevel *sl);
 170
 171 void mac802154_lock_table(struct net_device *dev);
 172 void mac802154_get_table(struct net_device *dev,
 173                          struct ieee802154_llsec_table **t);
 174 void mac802154_unlock_table(struct net_device *dev);
 175
 176 #endif /* __IEEE802154_I_H */