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         unsigned long state;
  83         char name[IFNAMSIZ];
  84
  85         spinlock_t mib_lock;
  86
  87         __le16 pan_id;
  88         __le16 short_addr;
  89         __le64 extended_addr;
  90         bool promiscuous_mode;
  91
  92         struct ieee802154_mac_params mac_params;
  93
  94         /* MAC BSN field */
  95         u8 bsn;
  96         /* MAC DSN field */
  97         u8 dsn;
  98
  99         /* protects sec from concurrent access by netlink. access by
 100          * encrypt/decrypt/header_create safe without additional protection.
 101          */
 102         struct mutex sec_mtx;
 103
 104         struct mac802154_llsec sec;
 105         /* must be last, dynamically sized area in this! */
 106         struct ieee802154_vif vif;
 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 static inline bool
 124 ieee802154_sdata_running(struct ieee802154_sub_if_data *sdata)
 125 {
 126         return test_bit(SDATA_STATE_RUNNING, &sdata->state);
 127 }
 128
 129 extern struct ieee802154_reduced_mlme_ops mac802154_mlme_reduced;
 130 extern struct ieee802154_mlme_ops mac802154_mlme_wpan;
 131
 132 void mac802154_monitor_setup(struct net_device *dev);
 133 netdev_tx_t
 134 ieee802154_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
 135
 136 void mac802154_wpan_setup(struct net_device *dev);
 137 netdev_tx_t
 138 ieee802154_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
 139
 140 /* MIB callbacks */
 141 void mac802154_dev_set_short_addr(struct net_device *dev, __le16 val);
 142 __le16 mac802154_dev_get_short_addr(const struct net_device *dev);
 143 __le16 mac802154_dev_get_pan_id(const struct net_device *dev);
 144 void mac802154_dev_set_pan_id(struct net_device *dev, __le16 val);
 145 void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan);
 146 u8 mac802154_dev_get_dsn(const struct net_device *dev);
 147
 148 int mac802154_get_params(struct net_device *dev,
 149                          struct ieee802154_llsec_params *params);
 150 int mac802154_set_params(struct net_device *dev,
 151                          const struct ieee802154_llsec_params *params,
 152                          int changed);
 153
 154 int mac802154_add_key(struct net_device *dev,
 155                       const struct ieee802154_llsec_key_id *id,
 156                       const struct ieee802154_llsec_key *key);
 157 int mac802154_del_key(struct net_device *dev,
 158                       const struct ieee802154_llsec_key_id *id);
 159
 160 int mac802154_add_dev(struct net_device *dev,
 161                       const struct ieee802154_llsec_device *llsec_dev);
 162 int mac802154_del_dev(struct net_device *dev, __le64 dev_addr);
 163
 164 int mac802154_add_devkey(struct net_device *dev,
 165                          __le64 device_addr,
 166                          const struct ieee802154_llsec_device_key *key);
 167 int mac802154_del_devkey(struct net_device *dev,
 168                          __le64 device_addr,
 169                          const struct ieee802154_llsec_device_key *key);
 170
 171 int mac802154_add_seclevel(struct net_device *dev,
 172                            const struct ieee802154_llsec_seclevel *sl);
 173 int mac802154_del_seclevel(struct net_device *dev,
 174                            const struct ieee802154_llsec_seclevel *sl);
 175
 176 void mac802154_lock_table(struct net_device *dev);
 177 void mac802154_get_table(struct net_device *dev,
 178                          struct ieee802154_llsec_table **t);
 179 void mac802154_unlock_table(struct net_device *dev);
 180
 181 struct net_device *
 182 mac802154_add_iface(struct wpan_phy *phy, const char *name, int type);
 183 void ieee802154_if_remove(struct ieee802154_sub_if_data *sdata);
 184 struct net_device *
 185 ieee802154_if_add(struct ieee802154_local *local, const char *name,
 186                   struct wpan_dev **new_wpan_dev, int type);
 187
 188 #endif /* __IEEE802154_I_H */