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Linux/net/mac802154/ieee802154_i.h

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  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/interrupt.h>
 23 #include <linux/mutex.h>
 24 #include <linux/hrtimer.h>
 25 #include <net/cfg802154.h>
 26 #include <net/mac802154.h>
 27 #include <net/nl802154.h>
 28 #include <net/ieee802154_netdev.h>
 29 
 30 #include "llsec.h"
 31 
 32 /* mac802154 device private data */
 33 struct ieee802154_local {
 34         struct ieee802154_hw hw;
 35         const struct ieee802154_ops *ops;
 36 
 37         /* ieee802154 phy */
 38         struct wpan_phy *phy;
 39 
 40         int open_count;
 41 
 42         /* As in mac80211 slaves list is modified:
 43          * 1) under the RTNL
 44          * 2) protected by slaves_mtx;
 45          * 3) in an RCU manner
 46          *
 47          * So atomic readers can use any of this protection methods.
 48          */
 49         struct list_head        interfaces;
 50         struct mutex            iflist_mtx;
 51 
 52         /* This one is used for scanning and other jobs not to be interfered
 53          * with serial driver.
 54          */
 55         struct workqueue_struct *workqueue;
 56 
 57         struct hrtimer ifs_timer;
 58 
 59         bool started;
 60         bool suspended;
 61 
 62         struct tasklet_struct tasklet;
 63         struct sk_buff_head skb_queue;
 64 
 65         struct sk_buff *tx_skb;
 66         struct work_struct tx_work;
 67 };
 68 
 69 enum {
 70         IEEE802154_RX_MSG        = 1,
 71 };
 72 
 73 enum ieee802154_sdata_state_bits {
 74         SDATA_STATE_RUNNING,
 75 };
 76 
 77 /* Slave interface definition.
 78  *
 79  * Slaves represent typical network interfaces available from userspace.
 80  * Each ieee802154 device/transceiver may have several slaves and able
 81  * to be associated with several networks at the same time.
 82  */
 83 struct ieee802154_sub_if_data {
 84         struct list_head list; /* the ieee802154_priv->slaves list */
 85 
 86         struct wpan_dev wpan_dev;
 87 
 88         struct ieee802154_local *local;
 89         struct net_device *dev;
 90 
 91         unsigned long state;
 92         char name[IFNAMSIZ];
 93 
 94         /* protects sec from concurrent access by netlink. access by
 95          * encrypt/decrypt/header_create safe without additional protection.
 96          */
 97         struct mutex sec_mtx;
 98 
 99         struct mac802154_llsec sec;
100 };
101 
102 /* utility functions/constants */
103 extern const void *const mac802154_wpan_phy_privid; /*  for wpan_phy privid */
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 struct ieee802154_sub_if_data *
118 IEEE802154_WPAN_DEV_TO_SUB_IF(struct wpan_dev *wpan_dev)
119 {
120         return container_of(wpan_dev, struct ieee802154_sub_if_data, wpan_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_mlme_ops mac802154_mlme_wpan;
130 
131 void ieee802154_rx(struct ieee802154_local *local, struct sk_buff *skb);
132 void ieee802154_xmit_worker(struct work_struct *work);
133 netdev_tx_t
134 ieee802154_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
135 netdev_tx_t
136 ieee802154_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
137 enum hrtimer_restart ieee802154_xmit_ifs_timer(struct hrtimer *timer);
138 
139 /* MIB callbacks */
140 void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan);
141 
142 int mac802154_get_params(struct net_device *dev,
143                          struct ieee802154_llsec_params *params);
144 int mac802154_set_params(struct net_device *dev,
145                          const struct ieee802154_llsec_params *params,
146                          int changed);
147 
148 int mac802154_add_key(struct net_device *dev,
149                       const struct ieee802154_llsec_key_id *id,
150                       const struct ieee802154_llsec_key *key);
151 int mac802154_del_key(struct net_device *dev,
152                       const struct ieee802154_llsec_key_id *id);
153 
154 int mac802154_add_dev(struct net_device *dev,
155                       const struct ieee802154_llsec_device *llsec_dev);
156 int mac802154_del_dev(struct net_device *dev, __le64 dev_addr);
157 
158 int mac802154_add_devkey(struct net_device *dev,
159                          __le64 device_addr,
160                          const struct ieee802154_llsec_device_key *key);
161 int mac802154_del_devkey(struct net_device *dev,
162                          __le64 device_addr,
163                          const struct ieee802154_llsec_device_key *key);
164 
165 int mac802154_add_seclevel(struct net_device *dev,
166                            const struct ieee802154_llsec_seclevel *sl);
167 int mac802154_del_seclevel(struct net_device *dev,
168                            const struct ieee802154_llsec_seclevel *sl);
169 
170 void mac802154_lock_table(struct net_device *dev);
171 void mac802154_get_table(struct net_device *dev,
172                          struct ieee802154_llsec_table **t);
173 void mac802154_unlock_table(struct net_device *dev);
174 
175 int mac802154_wpan_update_llsec(struct net_device *dev);
176 
177 /* interface handling */
178 int ieee802154_iface_init(void);
179 void ieee802154_iface_exit(void);
180 void ieee802154_if_remove(struct ieee802154_sub_if_data *sdata);
181 struct net_device *
182 ieee802154_if_add(struct ieee802154_local *local, const char *name,
183                   unsigned char name_assign_type, enum nl802154_iftype type,
184                   __le64 extended_addr);
185 void ieee802154_remove_interfaces(struct ieee802154_local *local);
186 void ieee802154_stop_device(struct ieee802154_local *local);
187 
188 #endif /* __IEEE802154_I_H */
189 

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