tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 */
32struct 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
68enum {
69 IEEE802154_RX_MSG = 1,
70};
71
72enum 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 */
82struct 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 */
102extern const void *const mac802154_wpan_phy_privid; /* for wpan_phy privid */
103
104static inline struct ieee802154_local *
105hw_to_local(struct ieee802154_hw *hw)
106{
107 return container_of(hw, struct ieee802154_local, hw);
108}
109
110static inline struct ieee802154_sub_if_data *
111IEEE802154_DEV_TO_SUB_IF(const struct net_device *dev)
112{
113 return netdev_priv(dev);
114}
115
116static inline struct ieee802154_sub_if_data *
117IEEE802154_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
122static inline bool
123ieee802154_sdata_running(struct ieee802154_sub_if_data *sdata)
124{
125 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
126}
127
128extern struct ieee802154_mlme_ops mac802154_mlme_wpan;
129
130void ieee802154_rx(struct ieee802154_local *local, struct sk_buff *skb);
131void ieee802154_xmit_worker(struct work_struct *work);
132netdev_tx_t
133ieee802154_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
134netdev_tx_t
135ieee802154_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
136enum hrtimer_restart ieee802154_xmit_ifs_timer(struct hrtimer *timer);
137
138/* MIB callbacks */
139void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan);
140
141int mac802154_get_params(struct net_device *dev,
142 struct ieee802154_llsec_params *params);
143int mac802154_set_params(struct net_device *dev,
144 const struct ieee802154_llsec_params *params,
145 int changed);
146
147int mac802154_add_key(struct net_device *dev,
148 const struct ieee802154_llsec_key_id *id,
149 const struct ieee802154_llsec_key *key);
150int mac802154_del_key(struct net_device *dev,
151 const struct ieee802154_llsec_key_id *id);
152
153int mac802154_add_dev(struct net_device *dev,
154 const struct ieee802154_llsec_device *llsec_dev);
155int mac802154_del_dev(struct net_device *dev, __le64 dev_addr);
156
157int mac802154_add_devkey(struct net_device *dev,
158 __le64 device_addr,
159 const struct ieee802154_llsec_device_key *key);
160int mac802154_del_devkey(struct net_device *dev,
161 __le64 device_addr,
162 const struct ieee802154_llsec_device_key *key);
163
164int mac802154_add_seclevel(struct net_device *dev,
165 const struct ieee802154_llsec_seclevel *sl);
166int mac802154_del_seclevel(struct net_device *dev,
167 const struct ieee802154_llsec_seclevel *sl);
168
169void mac802154_lock_table(struct net_device *dev);
170void mac802154_get_table(struct net_device *dev,
171 struct ieee802154_llsec_table **t);
172void mac802154_unlock_table(struct net_device *dev);
173
174int mac802154_wpan_update_llsec(struct net_device *dev);
175
176/* interface handling */
177int ieee802154_iface_init(void);
178void ieee802154_iface_exit(void);
179void ieee802154_if_remove(struct ieee802154_sub_if_data *sdata);
180struct net_device *
181ieee802154_if_add(struct ieee802154_local *local, const char *name,
182 unsigned char name_assign_type, enum nl802154_iftype type,
183 __le64 extended_addr);
184void ieee802154_remove_interfaces(struct ieee802154_local *local);
185void ieee802154_stop_device(struct ieee802154_local *local);
186
187#endif /* __IEEE802154_I_H */