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/cfg802154.h>
  24 #include <net/mac802154.h>
  25 #include <net/ieee802154_netdev.h>
  26
  27 #include "llsec.h"
  28
  29 /* mac802154 device private data */
  30 struct ieee802154_local {
  31         struct ieee802154_hw hw;
  32         const struct ieee802154_ops *ops;
  33
  34         /* ieee802154 phy */
  35         struct wpan_phy *phy;
  36
  37         int open_count;
  38
  39         /* As in mac80211 slaves list is modified:
  40          * 1) under the RTNL
  41          * 2) protected by slaves_mtx;
  42          * 3) in an RCU manner
  43          *
  44          * So atomic readers can use any of this protection methods.
  45          */
  46         struct list_head        interfaces;
  47         struct mutex            iflist_mtx;
  48
  49         /* This one is used for scanning and other jobs not to be interfered
  50          * with serial driver.
  51          */
  52         struct workqueue_struct *workqueue;
  53
  54         bool started;
  55
  56         struct tasklet_struct tasklet;
  57         struct sk_buff_head skb_queue;
  58 };
  59
  60 enum {
  61         IEEE802154_RX_MSG        = 1,
  62 };
  63
  64 enum ieee802154_sdata_state_bits {
  65         SDATA_STATE_RUNNING,
  66 };
  67
  68 /* Slave interface definition.
  69  *
  70  * Slaves represent typical network interfaces available from userspace.
  71  * Each ieee802154 device/transceiver may have several slaves and able
  72  * to be associated with several networks at the same time.
  73  */
  74 struct ieee802154_sub_if_data {
  75         struct list_head list; /* the ieee802154_priv->slaves list */
  76
  77         struct wpan_dev wpan_dev;
  78
  79         struct ieee802154_local *local;
  80         struct net_device *dev;
  81
  82         int type;
  83         unsigned long state;
  84         char name[IFNAMSIZ];
  85
  86         spinlock_t mib_lock;
  87
  88         __le16 pan_id;
  89         __le16 short_addr;
  90         __le64 extended_addr;
  91         bool promisuous_mode;
  92
  93         struct ieee802154_mac_params mac_params;
  94
  95         /* MAC BSN field */
  96         u8 bsn;
  97         /* MAC DSN field */
  98         u8 dsn;
  99
 100         /* protects sec from concurrent access by netlink. access by
 101          * encrypt/decrypt/header_create safe without additional protection.
 102          */
 103         struct mutex sec_mtx;
 104
 105         struct mac802154_llsec sec;
 106 };
 107
 108 #define MAC802154_CHAN_NONE             0xff /* No channel is assigned */
 109
 110 static inline struct ieee802154_local *
 111 hw_to_local(struct ieee802154_hw *hw)
 112 {
 113         return container_of(hw, struct ieee802154_local, hw);
 114 }
 115
 116 static inline struct ieee802154_sub_if_data *
 117 IEEE802154_DEV_TO_SUB_IF(const struct net_device *dev)
 118 {
 119         return netdev_priv(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_reduced_mlme_ops mac802154_mlme_reduced;
 129 extern struct ieee802154_mlme_ops mac802154_mlme_wpan;
 130
 131 void mac802154_monitor_setup(struct net_device *dev);
 132 netdev_tx_t
 133 ieee802154_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
 134
 135 void mac802154_wpan_setup(struct net_device *dev);
 136 netdev_tx_t
 137 ieee802154_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
 138
 139 /* MIB callbacks */
 140 void mac802154_dev_set_short_addr(struct net_device *dev, __le16 val);
 141 __le16 mac802154_dev_get_short_addr(const struct net_device *dev);
 142 __le16 mac802154_dev_get_pan_id(const struct net_device *dev);
 143 void mac802154_dev_set_pan_id(struct net_device *dev, __le16 val);
 144 void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan);
 145 u8 mac802154_dev_get_dsn(const struct net_device *dev);
 146
 147 int mac802154_get_params(struct net_device *dev,
 148                          struct ieee802154_llsec_params *params);
 149 int mac802154_set_params(struct net_device *dev,
 150                          const struct ieee802154_llsec_params *params,
 151                          int changed);
 152
 153 int mac802154_add_key(struct net_device *dev,
 154                       const struct ieee802154_llsec_key_id *id,
 155                       const struct ieee802154_llsec_key *key);
 156 int mac802154_del_key(struct net_device *dev,
 157                       const struct ieee802154_llsec_key_id *id);
 158
 159 int mac802154_add_dev(struct net_device *dev,
 160                       const struct ieee802154_llsec_device *llsec_dev);
 161 int mac802154_del_dev(struct net_device *dev, __le64 dev_addr);
 162
 163 int mac802154_add_devkey(struct net_device *dev,
 164                          __le64 device_addr,
 165                          const struct ieee802154_llsec_device_key *key);
 166 int mac802154_del_devkey(struct net_device *dev,
 167                          __le64 device_addr,
 168                          const struct ieee802154_llsec_device_key *key);
 169
 170 int mac802154_add_seclevel(struct net_device *dev,
 171                            const struct ieee802154_llsec_seclevel *sl);
 172 int mac802154_del_seclevel(struct net_device *dev,
 173                            const struct ieee802154_llsec_seclevel *sl);
 174
 175 void mac802154_lock_table(struct net_device *dev);
 176 void mac802154_get_table(struct net_device *dev,
 177                          struct ieee802154_llsec_table **t);
 178 void mac802154_unlock_table(struct net_device *dev);
 179
 180 struct net_device *
 181 mac802154_add_iface(struct wpan_phy *phy, const char *name, int type);
 182 void ieee802154_if_remove(struct ieee802154_sub_if_data *sdata);
 183 struct net_device *
 184 ieee802154_if_add(struct ieee802154_local *local, const char *name,
 185                   struct wpan_dev **new_wpan_dev, int type);
 186
 187 #endif /* __IEEE802154_I_H */