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         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         /* SoftMAC device is registered and running. One can add subinterfaces.
  54          * This flag should be modified under slaves_mtx and RTNL, so you can
  55          * read them using any of protection methods.
  56          */
  57         bool running;
  58
  59         struct tasklet_struct tasklet;
  60         struct sk_buff_head skb_queue;
  61 };
  62
  63 #define MAC802154_DEVICE_STOPPED        0x00
  64 #define MAC802154_DEVICE_RUN            0x01
  65
  66 enum {
  67         IEEE802154_RX_MSG        = 1,
  68 };
  69
  70 /* Slave interface definition.
  71  *
  72  * Slaves represent typical network interfaces available from userspace.
  73  * Each ieee802154 device/transceiver may have several slaves and able
  74  * to be associated with several networks at the same time.
  75  */
  76 struct ieee802154_sub_if_data {
  77         struct list_head list; /* the ieee802154_priv->slaves list */
  78
  79         struct ieee802154_local *local;
  80         struct net_device *dev;
  81
  82         int type;
  83         bool running;
  84
  85         spinlock_t mib_lock;
  86
  87         __le16 pan_id;
  88         __le16 short_addr;
  89         __le64 extended_addr;
  90
  91         u8 chan;
  92         u8 page;
  93
  94         struct ieee802154_mac_params mac_params;
  95
  96         /* MAC BSN field */
  97         u8 bsn;
  98         /* MAC DSN field */
  99         u8 dsn;
 100
 101         /* protects sec from concurrent access by netlink. access by
 102          * encrypt/decrypt/header_create safe without additional protection.
 103          */
 104         struct mutex sec_mtx;
 105
 106         struct mac802154_llsec sec;
 107 };
 108
 109 #define MAC802154_CHAN_NONE             0xff /* No channel is assigned */
 110
 111 static inline struct ieee802154_local *
 112 hw_to_local(struct ieee802154_hw *hw)
 113 {
 114         return container_of(hw, struct ieee802154_local, hw);
 115 }
 116
 117 static inline struct ieee802154_sub_if_data *
 118 IEEE802154_DEV_TO_SUB_IF(const struct net_device *dev)
 119 {
 120         return netdev_priv(dev);
 121 }
 122
 123 extern struct ieee802154_reduced_mlme_ops mac802154_mlme_reduced;
 124 extern struct ieee802154_mlme_ops mac802154_mlme_wpan;
 125
 126 int mac802154_slave_open(struct net_device *dev);
 127 int mac802154_slave_close(struct net_device *dev);
 128
 129 void mac802154_monitor_setup(struct net_device *dev);
 130 netdev_tx_t
 131 ieee802154_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
 132
 133 void mac802154_wpan_setup(struct net_device *dev);
 134 netdev_tx_t
 135 ieee802154_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
 136
 137 /* MIB callbacks */
 138 void mac802154_dev_set_short_addr(struct net_device *dev, __le16 val);
 139 __le16 mac802154_dev_get_short_addr(const struct net_device *dev);
 140 void mac802154_dev_set_ieee_addr(struct net_device *dev);
 141 __le16 mac802154_dev_get_pan_id(const struct net_device *dev);
 142 void mac802154_dev_set_pan_id(struct net_device *dev, __le16 val);
 143 void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan);
 144 u8 mac802154_dev_get_dsn(const struct net_device *dev);
 145
 146 int mac802154_set_mac_params(struct net_device *dev,
 147                              const struct ieee802154_mac_params *params);
 148 void mac802154_get_mac_params(struct net_device *dev,
 149                               struct ieee802154_mac_params *params);
 150
 151 int mac802154_get_params(struct net_device *dev,
 152                          struct ieee802154_llsec_params *params);
 153 int mac802154_set_params(struct net_device *dev,
 154                          const struct ieee802154_llsec_params *params,
 155                          int changed);
 156
 157 int mac802154_add_key(struct net_device *dev,
 158                       const struct ieee802154_llsec_key_id *id,
 159                       const struct ieee802154_llsec_key *key);
 160 int mac802154_del_key(struct net_device *dev,
 161                       const struct ieee802154_llsec_key_id *id);
 162
 163 int mac802154_add_dev(struct net_device *dev,
 164                       const struct ieee802154_llsec_device *llsec_dev);
 165 int mac802154_del_dev(struct net_device *dev, __le64 dev_addr);
 166
 167 int mac802154_add_devkey(struct net_device *dev,
 168                          __le64 device_addr,
 169                          const struct ieee802154_llsec_device_key *key);
 170 int mac802154_del_devkey(struct net_device *dev,
 171                          __le64 device_addr,
 172                          const struct ieee802154_llsec_device_key *key);
 173
 174 int mac802154_add_seclevel(struct net_device *dev,
 175                            const struct ieee802154_llsec_seclevel *sl);
 176 int mac802154_del_seclevel(struct net_device *dev,
 177                            const struct ieee802154_llsec_seclevel *sl);
 178
 179 void mac802154_lock_table(struct net_device *dev);
 180 void mac802154_get_table(struct net_device *dev,
 181                          struct ieee802154_llsec_table **t);
 182 void mac802154_unlock_table(struct net_device *dev);
 183
 184 #endif /* __IEEE802154_I_H */