1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copyright (C) 2007-2012 Siemens AG
4 *
5 * Written by:
6 * Pavel Smolenskiy <pavel.smolenskiy@gmail.com>
7 * Maxim Gorbachyov <maxim.gorbachev@siemens.com>
8 * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
9 * Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
10 */
11 #ifndef __IEEE802154_I_H
12 #define __IEEE802154_I_H
13
14 #include <linux/interrupt.h>
15 #include <linux/mutex.h>
16 #include <linux/hrtimer.h>
17 #include <net/cfg802154.h>
18 #include <net/mac802154.h>
19 #include <net/nl802154.h>
20 #include <net/ieee802154_netdev.h>
21
22 #include "llsec.h"
23
24 /* mac802154 device private data */
25 struct ieee802154_local {
26 struct ieee802154_hw hw;
27 const struct ieee802154_ops *ops;
28
29 /* ieee802154 phy */
30 struct wpan_phy *phy;
31
32 int open_count;
33
34 /* As in mac80211 slaves list is modified:
35 * 1) under the RTNL
36 * 2) protected by slaves_mtx;
37 * 3) in an RCU manner
38 *
39 * So atomic readers can use any of this protection methods.
40 */
41 struct list_head interfaces;
42 struct mutex iflist_mtx;
43
44 /* This one is used for scanning and other jobs not to be interfered
45 * with serial driver.
46 */
47 struct workqueue_struct *workqueue;
48
49 struct hrtimer ifs_timer;
50
51 bool started;
52 bool suspended;
53
54 struct tasklet_struct tasklet;
55 struct sk_buff_head skb_queue;
56
57 struct sk_buff *tx_skb;
58 struct work_struct tx_work;
59 };
60
61 enum {
62 IEEE802154_RX_MSG = 1,
63 };
64
65 enum ieee802154_sdata_state_bits {
66 SDATA_STATE_RUNNING,
67 };
68
69 /* Slave interface definition.
70 *
71 * Slaves represent typical network interfaces available from userspace.
72 * Each ieee802154 device/transceiver may have several slaves and able
73 * to be associated with several networks at the same time.
74 */
75 struct ieee802154_sub_if_data {
76 struct list_head list; /* the ieee802154_priv->slaves list */
77
78 struct wpan_dev wpan_dev;
79
80 struct ieee802154_local *local;
81 struct net_device *dev;
82
83 unsigned long state;
84 char name[IFNAMSIZ];
85
86 /* protects sec from concurrent access by netlink. access by
87 * encrypt/decrypt/header_create safe without additional protection.
88 */
89 struct mutex sec_mtx;
90
91 struct mac802154_llsec sec;
92 };
93
94 /* utility functions/constants */
95 extern const void *const mac802154_wpan_phy_privid; /* for wpan_phy privid */
96
97 static inline struct ieee802154_local *
hw_to_local(struct ieee802154_hw * hw)98 hw_to_local(struct ieee802154_hw *hw)
99 {
100 return container_of(hw, struct ieee802154_local, hw);
101 }
102
103 static inline struct ieee802154_sub_if_data *
IEEE802154_DEV_TO_SUB_IF(const struct net_device * dev)104 IEEE802154_DEV_TO_SUB_IF(const struct net_device *dev)
105 {
106 return netdev_priv(dev);
107 }
108
109 static inline struct ieee802154_sub_if_data *
IEEE802154_WPAN_DEV_TO_SUB_IF(struct wpan_dev * wpan_dev)110 IEEE802154_WPAN_DEV_TO_SUB_IF(struct wpan_dev *wpan_dev)
111 {
112 return container_of(wpan_dev, struct ieee802154_sub_if_data, wpan_dev);
113 }
114
115 static inline bool
ieee802154_sdata_running(struct ieee802154_sub_if_data * sdata)116 ieee802154_sdata_running(struct ieee802154_sub_if_data *sdata)
117 {
118 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
119 }
120
121 extern struct ieee802154_mlme_ops mac802154_mlme_wpan;
122
123 void ieee802154_rx(struct ieee802154_local *local, struct sk_buff *skb);
124 void ieee802154_xmit_worker(struct work_struct *work);
125 netdev_tx_t
126 ieee802154_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
127 netdev_tx_t
128 ieee802154_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
129 enum hrtimer_restart ieee802154_xmit_ifs_timer(struct hrtimer *timer);
130
131 /* MIB callbacks */
132 void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan);
133
134 int mac802154_get_params(struct net_device *dev,
135 struct ieee802154_llsec_params *params);
136 int mac802154_set_params(struct net_device *dev,
137 const struct ieee802154_llsec_params *params,
138 int changed);
139
140 int mac802154_add_key(struct net_device *dev,
141 const struct ieee802154_llsec_key_id *id,
142 const struct ieee802154_llsec_key *key);
143 int mac802154_del_key(struct net_device *dev,
144 const struct ieee802154_llsec_key_id *id);
145
146 int mac802154_add_dev(struct net_device *dev,
147 const struct ieee802154_llsec_device *llsec_dev);
148 int mac802154_del_dev(struct net_device *dev, __le64 dev_addr);
149
150 int mac802154_add_devkey(struct net_device *dev,
151 __le64 device_addr,
152 const struct ieee802154_llsec_device_key *key);
153 int mac802154_del_devkey(struct net_device *dev,
154 __le64 device_addr,
155 const struct ieee802154_llsec_device_key *key);
156
157 int mac802154_add_seclevel(struct net_device *dev,
158 const struct ieee802154_llsec_seclevel *sl);
159 int mac802154_del_seclevel(struct net_device *dev,
160 const struct ieee802154_llsec_seclevel *sl);
161
162 void mac802154_lock_table(struct net_device *dev);
163 void mac802154_get_table(struct net_device *dev,
164 struct ieee802154_llsec_table **t);
165 void mac802154_unlock_table(struct net_device *dev);
166
167 int mac802154_wpan_update_llsec(struct net_device *dev);
168
169 /* interface handling */
170 int ieee802154_iface_init(void);
171 void ieee802154_iface_exit(void);
172 void ieee802154_if_remove(struct ieee802154_sub_if_data *sdata);
173 struct net_device *
174 ieee802154_if_add(struct ieee802154_local *local, const char *name,
175 unsigned char name_assign_type, enum nl802154_iftype type,
176 __le64 extended_addr);
177 void ieee802154_remove_interfaces(struct ieee802154_local *local);
178 void ieee802154_stop_device(struct ieee802154_local *local);
179
180 #endif /* __IEEE802154_I_H */
181
