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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/mutex.h>
 23 #include <linux/hrtimer.h>
 24 #include <net/cfg802154.h>
 25 #include <net/mac802154.h>
 26 #include <net/nl802154.h>
 27 #include <net/ieee802154_netdev.h>
 28 
 29 #include "llsec.h"
 30 
 31 /* mac802154 device private data */
 32 struct ieee802154_local {
 33         struct ieee802154_hw hw;
 34         const struct ieee802154_ops *ops;
 35 
 36         /* ieee802154 phy */
 37         struct wpan_phy *phy;
 38 
 39         int open_count;
 40 
 41         /* As in mac80211 slaves list is modified:
 42          * 1) under the RTNL
 43          * 2) protected by slaves_mtx;
 44          * 3) in an RCU manner
 45          *
 46          * So atomic readers can use any of this protection methods.
 47          */
 48         struct list_head        interfaces;
 49         struct mutex            iflist_mtx;
 50 
 51         /* This one is used for scanning and other jobs not to be interfered
 52          * with serial driver.
 53          */
 54         struct workqueue_struct *workqueue;
 55 
 56         struct hrtimer ifs_timer;
 57 
 58         bool started;
 59         bool suspended;
 60 
 61         struct tasklet_struct tasklet;
 62         struct sk_buff_head skb_queue;
 63 
 64         struct sk_buff *tx_skb;
 65         struct work_struct tx_work;
 66 };
 67 
 68 enum {
 69         IEEE802154_RX_MSG        = 1,
 70 };
 71 
 72 enum ieee802154_sdata_state_bits {
 73         SDATA_STATE_RUNNING,
 74 };
 75 
 76 /* Slave interface definition.
 77  *
 78  * Slaves represent typical network interfaces available from userspace.
 79  * Each ieee802154 device/transceiver may have several slaves and able
 80  * to be associated with several networks at the same time.
 81  */
 82 struct ieee802154_sub_if_data {
 83         struct list_head list; /* the ieee802154_priv->slaves list */
 84 
 85         struct wpan_dev wpan_dev;
 86 
 87         struct ieee802154_local *local;
 88         struct net_device *dev;
 89 
 90         unsigned long state;
 91         char name[IFNAMSIZ];
 92 
 93         /* protects sec from concurrent access by netlink. access by
 94          * encrypt/decrypt/header_create safe without additional protection.
 95          */
 96         struct mutex sec_mtx;
 97 
 98         struct mac802154_llsec sec;
 99 };
100 
101 /* utility functions/constants */
102 extern const void *const mac802154_wpan_phy_privid; /*  for wpan_phy privid */
103 
104 static inline struct ieee802154_local *
105 hw_to_local(struct ieee802154_hw *hw)
106 {
107         return container_of(hw, struct ieee802154_local, hw);
108 }
109 
110 static inline struct ieee802154_sub_if_data *
111 IEEE802154_DEV_TO_SUB_IF(const struct net_device *dev)
112 {
113         return netdev_priv(dev);
114 }
115 
116 static inline struct ieee802154_sub_if_data *
117 IEEE802154_WPAN_DEV_TO_SUB_IF(struct wpan_dev *wpan_dev)
118 {
119         return container_of(wpan_dev, struct ieee802154_sub_if_data, wpan_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_mlme_ops mac802154_mlme_wpan;
129 
130 void ieee802154_rx(struct ieee802154_local *local, struct sk_buff *skb);
131 void ieee802154_xmit_worker(struct work_struct *work);
132 netdev_tx_t
133 ieee802154_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
134 netdev_tx_t
135 ieee802154_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
136 enum hrtimer_restart ieee802154_xmit_ifs_timer(struct hrtimer *timer);
137 
138 /* MIB callbacks */
139 void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan);
140 
141 int mac802154_get_params(struct net_device *dev,
142                          struct ieee802154_llsec_params *params);
143 int mac802154_set_params(struct net_device *dev,
144                          const struct ieee802154_llsec_params *params,
145                          int changed);
146 
147 int mac802154_add_key(struct net_device *dev,
148                       const struct ieee802154_llsec_key_id *id,
149                       const struct ieee802154_llsec_key *key);
150 int mac802154_del_key(struct net_device *dev,
151                       const struct ieee802154_llsec_key_id *id);
152 
153 int mac802154_add_dev(struct net_device *dev,
154                       const struct ieee802154_llsec_device *llsec_dev);
155 int mac802154_del_dev(struct net_device *dev, __le64 dev_addr);
156 
157 int mac802154_add_devkey(struct net_device *dev,
158                          __le64 device_addr,
159                          const struct ieee802154_llsec_device_key *key);
160 int mac802154_del_devkey(struct net_device *dev,
161                          __le64 device_addr,
162                          const struct ieee802154_llsec_device_key *key);
163 
164 int mac802154_add_seclevel(struct net_device *dev,
165                            const struct ieee802154_llsec_seclevel *sl);
166 int mac802154_del_seclevel(struct net_device *dev,
167                            const struct ieee802154_llsec_seclevel *sl);
168 
169 void mac802154_lock_table(struct net_device *dev);
170 void mac802154_get_table(struct net_device *dev,
171                          struct ieee802154_llsec_table **t);
172 void mac802154_unlock_table(struct net_device *dev);
173 
174 int mac802154_wpan_update_llsec(struct net_device *dev);
175 
176 /* interface handling */
177 int ieee802154_iface_init(void);
178 void ieee802154_iface_exit(void);
179 void ieee802154_if_remove(struct ieee802154_sub_if_data *sdata);
180 struct net_device *
181 ieee802154_if_add(struct ieee802154_local *local, const char *name,
182                   unsigned char name_assign_type, enum nl802154_iftype type,
183                   __le64 extended_addr);
184 void ieee802154_remove_interfaces(struct ieee802154_local *local);
185 void ieee802154_stop_device(struct ieee802154_local *local);
186 
187 #endif /* __IEEE802154_I_H */
188 

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