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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2007, 2008, 2009 Siemens AG
4 *
5 * Written by:
6 * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
7 */
8
9#ifndef __NET_CFG802154_H
10#define __NET_CFG802154_H
11
12#include <linux/ieee802154.h>
13#include <linux/netdevice.h>
14#include <linux/mutex.h>
15#include <linux/bug.h>
16
17#include <net/nl802154.h>
18
19struct wpan_phy;
20struct wpan_phy_cca;
21
22#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
23struct ieee802154_llsec_device_key;
24struct ieee802154_llsec_seclevel;
25struct ieee802154_llsec_params;
26struct ieee802154_llsec_device;
27struct ieee802154_llsec_table;
28struct ieee802154_llsec_key_id;
29struct ieee802154_llsec_key;
30#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
31
32struct cfg802154_ops {
33 struct net_device * (*add_virtual_intf_deprecated)(struct wpan_phy *wpan_phy,
34 const char *name,
35 unsigned char name_assign_type,
36 int type);
37 void (*del_virtual_intf_deprecated)(struct wpan_phy *wpan_phy,
38 struct net_device *dev);
39 int (*suspend)(struct wpan_phy *wpan_phy);
40 int (*resume)(struct wpan_phy *wpan_phy);
41 int (*add_virtual_intf)(struct wpan_phy *wpan_phy,
42 const char *name,
43 unsigned char name_assign_type,
44 enum nl802154_iftype type,
45 __le64 extended_addr);
46 int (*del_virtual_intf)(struct wpan_phy *wpan_phy,
47 struct wpan_dev *wpan_dev);
48 int (*set_channel)(struct wpan_phy *wpan_phy, u8 page, u8 channel);
49 int (*set_cca_mode)(struct wpan_phy *wpan_phy,
50 const struct wpan_phy_cca *cca);
51 int (*set_cca_ed_level)(struct wpan_phy *wpan_phy, s32 ed_level);
52 int (*set_tx_power)(struct wpan_phy *wpan_phy, s32 power);
53 int (*set_pan_id)(struct wpan_phy *wpan_phy,
54 struct wpan_dev *wpan_dev, __le16 pan_id);
55 int (*set_short_addr)(struct wpan_phy *wpan_phy,
56 struct wpan_dev *wpan_dev, __le16 short_addr);
57 int (*set_backoff_exponent)(struct wpan_phy *wpan_phy,
58 struct wpan_dev *wpan_dev, u8 min_be,
59 u8 max_be);
60 int (*set_max_csma_backoffs)(struct wpan_phy *wpan_phy,
61 struct wpan_dev *wpan_dev,
62 u8 max_csma_backoffs);
63 int (*set_max_frame_retries)(struct wpan_phy *wpan_phy,
64 struct wpan_dev *wpan_dev,
65 s8 max_frame_retries);
66 int (*set_lbt_mode)(struct wpan_phy *wpan_phy,
67 struct wpan_dev *wpan_dev, bool mode);
68 int (*set_ackreq_default)(struct wpan_phy *wpan_phy,
69 struct wpan_dev *wpan_dev, bool ackreq);
70#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
71 void (*get_llsec_table)(struct wpan_phy *wpan_phy,
72 struct wpan_dev *wpan_dev,
73 struct ieee802154_llsec_table **table);
74 void (*lock_llsec_table)(struct wpan_phy *wpan_phy,
75 struct wpan_dev *wpan_dev);
76 void (*unlock_llsec_table)(struct wpan_phy *wpan_phy,
77 struct wpan_dev *wpan_dev);
78 /* TODO remove locking/get table callbacks, this is part of the
79 * nl802154 interface and should be accessible from ieee802154 layer.
80 */
81 int (*get_llsec_params)(struct wpan_phy *wpan_phy,
82 struct wpan_dev *wpan_dev,
83 struct ieee802154_llsec_params *params);
84 int (*set_llsec_params)(struct wpan_phy *wpan_phy,
85 struct wpan_dev *wpan_dev,
86 const struct ieee802154_llsec_params *params,
87 int changed);
88 int (*add_llsec_key)(struct wpan_phy *wpan_phy,
89 struct wpan_dev *wpan_dev,
90 const struct ieee802154_llsec_key_id *id,
91 const struct ieee802154_llsec_key *key);
92 int (*del_llsec_key)(struct wpan_phy *wpan_phy,
93 struct wpan_dev *wpan_dev,
94 const struct ieee802154_llsec_key_id *id);
95 int (*add_seclevel)(struct wpan_phy *wpan_phy,
96 struct wpan_dev *wpan_dev,
97 const struct ieee802154_llsec_seclevel *sl);
98 int (*del_seclevel)(struct wpan_phy *wpan_phy,
99 struct wpan_dev *wpan_dev,
100 const struct ieee802154_llsec_seclevel *sl);
101 int (*add_device)(struct wpan_phy *wpan_phy,
102 struct wpan_dev *wpan_dev,
103 const struct ieee802154_llsec_device *dev);
104 int (*del_device)(struct wpan_phy *wpan_phy,
105 struct wpan_dev *wpan_dev, __le64 extended_addr);
106 int (*add_devkey)(struct wpan_phy *wpan_phy,
107 struct wpan_dev *wpan_dev,
108 __le64 extended_addr,
109 const struct ieee802154_llsec_device_key *key);
110 int (*del_devkey)(struct wpan_phy *wpan_phy,
111 struct wpan_dev *wpan_dev,
112 __le64 extended_addr,
113 const struct ieee802154_llsec_device_key *key);
114#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
115};
116
117static inline bool
118wpan_phy_supported_bool(bool b, enum nl802154_supported_bool_states st)
119{
120 switch (st) {
121 case NL802154_SUPPORTED_BOOL_TRUE:
122 return b;
123 case NL802154_SUPPORTED_BOOL_FALSE:
124 return !b;
125 case NL802154_SUPPORTED_BOOL_BOTH:
126 return true;
127 default:
128 WARN_ON(1);
129 }
130
131 return false;
132}
133
134struct wpan_phy_supported {
135 u32 channels[IEEE802154_MAX_PAGE + 1],
136 cca_modes, cca_opts, iftypes;
137 enum nl802154_supported_bool_states lbt;
138 u8 min_minbe, max_minbe, min_maxbe, max_maxbe,
139 min_csma_backoffs, max_csma_backoffs;
140 s8 min_frame_retries, max_frame_retries;
141 size_t tx_powers_size, cca_ed_levels_size;
142 const s32 *tx_powers, *cca_ed_levels;
143};
144
145struct wpan_phy_cca {
146 enum nl802154_cca_modes mode;
147 enum nl802154_cca_opts opt;
148};
149
150static inline bool
151wpan_phy_cca_cmp(const struct wpan_phy_cca *a, const struct wpan_phy_cca *b)
152{
153 if (a->mode != b->mode)
154 return false;
155
156 if (a->mode == NL802154_CCA_ENERGY_CARRIER)
157 return a->opt == b->opt;
158
159 return true;
160}
161
162/**
163 * @WPAN_PHY_FLAG_TRANSMIT_POWER: Indicates that transceiver will support
164 * transmit power setting.
165 * @WPAN_PHY_FLAG_CCA_ED_LEVEL: Indicates that transceiver will support cca ed
166 * level setting.
167 * @WPAN_PHY_FLAG_CCA_MODE: Indicates that transceiver will support cca mode
168 * setting.
169 */
170enum wpan_phy_flags {
171 WPAN_PHY_FLAG_TXPOWER = BIT(1),
172 WPAN_PHY_FLAG_CCA_ED_LEVEL = BIT(2),
173 WPAN_PHY_FLAG_CCA_MODE = BIT(3),
174};
175
176struct wpan_phy {
177 /* If multiple wpan_phys are registered and you're handed e.g.
178 * a regular netdev with assigned ieee802154_ptr, you won't
179 * know whether it points to a wpan_phy your driver has registered
180 * or not. Assign this to something global to your driver to
181 * help determine whether you own this wpan_phy or not.
182 */
183 const void *privid;
184
185 u32 flags;
186
187 /*
188 * This is a PIB according to 802.15.4-2011.
189 * We do not provide timing-related variables, as they
190 * aren't used outside of driver
191 */
192 u8 current_channel;
193 u8 current_page;
194 struct wpan_phy_supported supported;
195 /* current transmit_power in mBm */
196 s32 transmit_power;
197 struct wpan_phy_cca cca;
198
199 __le64 perm_extended_addr;
200
201 /* current cca ed threshold in mBm */
202 s32 cca_ed_level;
203
204 /* PHY depended MAC PIB values */
205
206 /* 802.15.4 acronym: Tdsym in usec */
207 u8 symbol_duration;
208 /* lifs and sifs periods timing */
209 u16 lifs_period;
210 u16 sifs_period;
211
212 struct device dev;
213
214 /* the network namespace this phy lives in currently */
215 possible_net_t _net;
216
217 char priv[] __aligned(NETDEV_ALIGN);
218};
219
220static inline struct net *wpan_phy_net(struct wpan_phy *wpan_phy)
221{
222 return read_pnet(&wpan_phy->_net);
223}
224
225static inline void wpan_phy_net_set(struct wpan_phy *wpan_phy, struct net *net)
226{
227 write_pnet(&wpan_phy->_net, net);
228}
229
230struct ieee802154_addr {
231 u8 mode;
232 __le16 pan_id;
233 union {
234 __le16 short_addr;
235 __le64 extended_addr;
236 };
237};
238
239struct ieee802154_llsec_key_id {
240 u8 mode;
241 u8 id;
242 union {
243 struct ieee802154_addr device_addr;
244 __le32 short_source;
245 __le64 extended_source;
246 };
247};
248
249#define IEEE802154_LLSEC_KEY_SIZE 16
250
251struct ieee802154_llsec_key {
252 u8 frame_types;
253 u32 cmd_frame_ids;
254 /* TODO replace with NL802154_KEY_SIZE */
255 u8 key[IEEE802154_LLSEC_KEY_SIZE];
256};
257
258struct ieee802154_llsec_key_entry {
259 struct list_head list;
260
261 struct ieee802154_llsec_key_id id;
262 struct ieee802154_llsec_key *key;
263};
264
265struct ieee802154_llsec_params {
266 bool enabled;
267
268 __be32 frame_counter;
269 u8 out_level;
270 struct ieee802154_llsec_key_id out_key;
271
272 __le64 default_key_source;
273
274 __le16 pan_id;
275 __le64 hwaddr;
276 __le64 coord_hwaddr;
277 __le16 coord_shortaddr;
278};
279
280struct ieee802154_llsec_table {
281 struct list_head keys;
282 struct list_head devices;
283 struct list_head security_levels;
284};
285
286struct ieee802154_llsec_seclevel {
287 struct list_head list;
288
289 u8 frame_type;
290 u8 cmd_frame_id;
291 bool device_override;
292 u32 sec_levels;
293};
294
295struct ieee802154_llsec_device {
296 struct list_head list;
297
298 __le16 pan_id;
299 __le16 short_addr;
300 __le64 hwaddr;
301 u32 frame_counter;
302 bool seclevel_exempt;
303
304 u8 key_mode;
305 struct list_head keys;
306};
307
308struct ieee802154_llsec_device_key {
309 struct list_head list;
310
311 struct ieee802154_llsec_key_id key_id;
312 u32 frame_counter;
313};
314
315struct wpan_dev_header_ops {
316 /* TODO create callback currently assumes ieee802154_mac_cb inside
317 * skb->cb. This should be changed to give these information as
318 * parameter.
319 */
320 int (*create)(struct sk_buff *skb, struct net_device *dev,
321 const struct ieee802154_addr *daddr,
322 const struct ieee802154_addr *saddr,
323 unsigned int len);
324};
325
326struct wpan_dev {
327 struct wpan_phy *wpan_phy;
328 int iftype;
329
330 /* the remainder of this struct should be private to cfg802154 */
331 struct list_head list;
332 struct net_device *netdev;
333
334 const struct wpan_dev_header_ops *header_ops;
335
336 /* lowpan interface, set when the wpan_dev belongs to one lowpan_dev */
337 struct net_device *lowpan_dev;
338
339 u32 identifier;
340
341 /* MAC PIB */
342 __le16 pan_id;
343 __le16 short_addr;
344 __le64 extended_addr;
345
346 /* MAC BSN field */
347 atomic_t bsn;
348 /* MAC DSN field */
349 atomic_t dsn;
350
351 u8 min_be;
352 u8 max_be;
353 u8 csma_retries;
354 s8 frame_retries;
355
356 bool lbt;
357
358 bool promiscuous_mode;
359
360 /* fallback for acknowledgment bit setting */
361 bool ackreq;
362};
363
364#define to_phy(_dev) container_of(_dev, struct wpan_phy, dev)
365
366static inline int
367wpan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
368 const struct ieee802154_addr *daddr,
369 const struct ieee802154_addr *saddr,
370 unsigned int len)
371{
372 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
373
374 return wpan_dev->header_ops->create(skb, dev, daddr, saddr, len);
375}
376
377struct wpan_phy *
378wpan_phy_new(const struct cfg802154_ops *ops, size_t priv_size);
379static inline void wpan_phy_set_dev(struct wpan_phy *phy, struct device *dev)
380{
381 phy->dev.parent = dev;
382}
383
384int wpan_phy_register(struct wpan_phy *phy);
385void wpan_phy_unregister(struct wpan_phy *phy);
386void wpan_phy_free(struct wpan_phy *phy);
387/* Same semantics as for class_for_each_device */
388int wpan_phy_for_each(int (*fn)(struct wpan_phy *phy, void *data), void *data);
389
390static inline void *wpan_phy_priv(struct wpan_phy *phy)
391{
392 BUG_ON(!phy);
393 return &phy->priv;
394}
395
396struct wpan_phy *wpan_phy_find(const char *str);
397
398static inline void wpan_phy_put(struct wpan_phy *phy)
399{
400 put_device(&phy->dev);
401}
402
403static inline const char *wpan_phy_name(struct wpan_phy *phy)
404{
405 return dev_name(&phy->dev);
406}
407
408#endif /* __NET_CFG802154_H */
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2007, 2008, 2009 Siemens AG
4 *
5 * Written by:
6 * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
7 */
8
9#ifndef __NET_CFG802154_H
10#define __NET_CFG802154_H
11
12#include <linux/ieee802154.h>
13#include <linux/netdevice.h>
14#include <linux/spinlock.h>
15#include <linux/bug.h>
16
17#include <net/nl802154.h>
18
19struct wpan_phy;
20struct wpan_phy_cca;
21struct cfg802154_scan_request;
22struct cfg802154_beacon_request;
23struct ieee802154_addr;
24
25#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
26struct ieee802154_llsec_device_key;
27struct ieee802154_llsec_seclevel;
28struct ieee802154_llsec_params;
29struct ieee802154_llsec_device;
30struct ieee802154_llsec_table;
31struct ieee802154_llsec_key_id;
32struct ieee802154_llsec_key;
33#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
34
35struct cfg802154_ops {
36 struct net_device * (*add_virtual_intf_deprecated)(struct wpan_phy *wpan_phy,
37 const char *name,
38 unsigned char name_assign_type,
39 int type);
40 void (*del_virtual_intf_deprecated)(struct wpan_phy *wpan_phy,
41 struct net_device *dev);
42 int (*suspend)(struct wpan_phy *wpan_phy);
43 int (*resume)(struct wpan_phy *wpan_phy);
44 int (*add_virtual_intf)(struct wpan_phy *wpan_phy,
45 const char *name,
46 unsigned char name_assign_type,
47 enum nl802154_iftype type,
48 __le64 extended_addr);
49 int (*del_virtual_intf)(struct wpan_phy *wpan_phy,
50 struct wpan_dev *wpan_dev);
51 int (*set_channel)(struct wpan_phy *wpan_phy, u8 page, u8 channel);
52 int (*set_cca_mode)(struct wpan_phy *wpan_phy,
53 const struct wpan_phy_cca *cca);
54 int (*set_cca_ed_level)(struct wpan_phy *wpan_phy, s32 ed_level);
55 int (*set_tx_power)(struct wpan_phy *wpan_phy, s32 power);
56 int (*set_pan_id)(struct wpan_phy *wpan_phy,
57 struct wpan_dev *wpan_dev, __le16 pan_id);
58 int (*set_short_addr)(struct wpan_phy *wpan_phy,
59 struct wpan_dev *wpan_dev, __le16 short_addr);
60 int (*set_backoff_exponent)(struct wpan_phy *wpan_phy,
61 struct wpan_dev *wpan_dev, u8 min_be,
62 u8 max_be);
63 int (*set_max_csma_backoffs)(struct wpan_phy *wpan_phy,
64 struct wpan_dev *wpan_dev,
65 u8 max_csma_backoffs);
66 int (*set_max_frame_retries)(struct wpan_phy *wpan_phy,
67 struct wpan_dev *wpan_dev,
68 s8 max_frame_retries);
69 int (*set_lbt_mode)(struct wpan_phy *wpan_phy,
70 struct wpan_dev *wpan_dev, bool mode);
71 int (*set_ackreq_default)(struct wpan_phy *wpan_phy,
72 struct wpan_dev *wpan_dev, bool ackreq);
73 int (*trigger_scan)(struct wpan_phy *wpan_phy,
74 struct cfg802154_scan_request *request);
75 int (*abort_scan)(struct wpan_phy *wpan_phy,
76 struct wpan_dev *wpan_dev);
77 int (*send_beacons)(struct wpan_phy *wpan_phy,
78 struct cfg802154_beacon_request *request);
79 int (*stop_beacons)(struct wpan_phy *wpan_phy,
80 struct wpan_dev *wpan_dev);
81 int (*associate)(struct wpan_phy *wpan_phy,
82 struct wpan_dev *wpan_dev,
83 struct ieee802154_addr *coord);
84 int (*disassociate)(struct wpan_phy *wpan_phy,
85 struct wpan_dev *wpan_dev,
86 struct ieee802154_addr *target);
87#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
88 void (*get_llsec_table)(struct wpan_phy *wpan_phy,
89 struct wpan_dev *wpan_dev,
90 struct ieee802154_llsec_table **table);
91 void (*lock_llsec_table)(struct wpan_phy *wpan_phy,
92 struct wpan_dev *wpan_dev);
93 void (*unlock_llsec_table)(struct wpan_phy *wpan_phy,
94 struct wpan_dev *wpan_dev);
95 /* TODO remove locking/get table callbacks, this is part of the
96 * nl802154 interface and should be accessible from ieee802154 layer.
97 */
98 int (*get_llsec_params)(struct wpan_phy *wpan_phy,
99 struct wpan_dev *wpan_dev,
100 struct ieee802154_llsec_params *params);
101 int (*set_llsec_params)(struct wpan_phy *wpan_phy,
102 struct wpan_dev *wpan_dev,
103 const struct ieee802154_llsec_params *params,
104 int changed);
105 int (*add_llsec_key)(struct wpan_phy *wpan_phy,
106 struct wpan_dev *wpan_dev,
107 const struct ieee802154_llsec_key_id *id,
108 const struct ieee802154_llsec_key *key);
109 int (*del_llsec_key)(struct wpan_phy *wpan_phy,
110 struct wpan_dev *wpan_dev,
111 const struct ieee802154_llsec_key_id *id);
112 int (*add_seclevel)(struct wpan_phy *wpan_phy,
113 struct wpan_dev *wpan_dev,
114 const struct ieee802154_llsec_seclevel *sl);
115 int (*del_seclevel)(struct wpan_phy *wpan_phy,
116 struct wpan_dev *wpan_dev,
117 const struct ieee802154_llsec_seclevel *sl);
118 int (*add_device)(struct wpan_phy *wpan_phy,
119 struct wpan_dev *wpan_dev,
120 const struct ieee802154_llsec_device *dev);
121 int (*del_device)(struct wpan_phy *wpan_phy,
122 struct wpan_dev *wpan_dev, __le64 extended_addr);
123 int (*add_devkey)(struct wpan_phy *wpan_phy,
124 struct wpan_dev *wpan_dev,
125 __le64 extended_addr,
126 const struct ieee802154_llsec_device_key *key);
127 int (*del_devkey)(struct wpan_phy *wpan_phy,
128 struct wpan_dev *wpan_dev,
129 __le64 extended_addr,
130 const struct ieee802154_llsec_device_key *key);
131#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
132};
133
134static inline bool
135wpan_phy_supported_bool(bool b, enum nl802154_supported_bool_states st)
136{
137 switch (st) {
138 case NL802154_SUPPORTED_BOOL_TRUE:
139 return b;
140 case NL802154_SUPPORTED_BOOL_FALSE:
141 return !b;
142 case NL802154_SUPPORTED_BOOL_BOTH:
143 return true;
144 default:
145 WARN_ON(1);
146 }
147
148 return false;
149}
150
151struct wpan_phy_supported {
152 u32 channels[IEEE802154_MAX_PAGE + 1],
153 cca_modes, cca_opts, iftypes;
154 enum nl802154_supported_bool_states lbt;
155 u8 min_minbe, max_minbe, min_maxbe, max_maxbe,
156 min_csma_backoffs, max_csma_backoffs;
157 s8 min_frame_retries, max_frame_retries;
158 size_t tx_powers_size, cca_ed_levels_size;
159 const s32 *tx_powers, *cca_ed_levels;
160};
161
162struct wpan_phy_cca {
163 enum nl802154_cca_modes mode;
164 enum nl802154_cca_opts opt;
165};
166
167static inline bool
168wpan_phy_cca_cmp(const struct wpan_phy_cca *a, const struct wpan_phy_cca *b)
169{
170 if (a->mode != b->mode)
171 return false;
172
173 if (a->mode == NL802154_CCA_ENERGY_CARRIER)
174 return a->opt == b->opt;
175
176 return true;
177}
178
179/**
180 * enum wpan_phy_flags - WPAN PHY state flags
181 * @WPAN_PHY_FLAG_TXPOWER: Indicates that transceiver will support
182 * transmit power setting.
183 * @WPAN_PHY_FLAG_CCA_ED_LEVEL: Indicates that transceiver will support cca ed
184 * level setting.
185 * @WPAN_PHY_FLAG_CCA_MODE: Indicates that transceiver will support cca mode
186 * setting.
187 * @WPAN_PHY_FLAG_STATE_QUEUE_STOPPED: Indicates that the transmit queue was
188 * temporarily stopped.
189 * @WPAN_PHY_FLAG_DATAGRAMS_ONLY: Indicates that transceiver is only able to
190 * send/receive datagrams.
191 */
192enum wpan_phy_flags {
193 WPAN_PHY_FLAG_TXPOWER = BIT(1),
194 WPAN_PHY_FLAG_CCA_ED_LEVEL = BIT(2),
195 WPAN_PHY_FLAG_CCA_MODE = BIT(3),
196 WPAN_PHY_FLAG_STATE_QUEUE_STOPPED = BIT(4),
197 WPAN_PHY_FLAG_DATAGRAMS_ONLY = BIT(5),
198};
199
200struct wpan_phy {
201 /* If multiple wpan_phys are registered and you're handed e.g.
202 * a regular netdev with assigned ieee802154_ptr, you won't
203 * know whether it points to a wpan_phy your driver has registered
204 * or not. Assign this to something global to your driver to
205 * help determine whether you own this wpan_phy or not.
206 */
207 const void *privid;
208
209 unsigned long flags;
210
211 /*
212 * This is a PIB according to 802.15.4-2011.
213 * We do not provide timing-related variables, as they
214 * aren't used outside of driver
215 */
216 u8 current_channel;
217 u8 current_page;
218 struct wpan_phy_supported supported;
219 /* current transmit_power in mBm */
220 s32 transmit_power;
221 struct wpan_phy_cca cca;
222
223 __le64 perm_extended_addr;
224
225 /* current cca ed threshold in mBm */
226 s32 cca_ed_level;
227
228 /* PHY depended MAC PIB values */
229
230 /* 802.15.4 acronym: Tdsym in nsec */
231 u32 symbol_duration;
232 /* lifs and sifs periods timing */
233 u16 lifs_period;
234 u16 sifs_period;
235
236 struct device dev;
237
238 /* the network namespace this phy lives in currently */
239 possible_net_t _net;
240
241 /* Transmission monitoring and control */
242 spinlock_t queue_lock;
243 atomic_t ongoing_txs;
244 atomic_t hold_txs;
245 wait_queue_head_t sync_txq;
246
247 /* Current filtering level on reception.
248 * Only allowed to be changed if phy is not operational.
249 */
250 enum ieee802154_filtering_level filtering;
251
252 char priv[] __aligned(NETDEV_ALIGN);
253};
254
255static inline struct net *wpan_phy_net(struct wpan_phy *wpan_phy)
256{
257 return read_pnet(&wpan_phy->_net);
258}
259
260static inline void wpan_phy_net_set(struct wpan_phy *wpan_phy, struct net *net)
261{
262 write_pnet(&wpan_phy->_net, net);
263}
264
265static inline bool ieee802154_chan_is_valid(struct wpan_phy *phy,
266 u8 page, u8 channel)
267{
268 if (page > IEEE802154_MAX_PAGE ||
269 channel > IEEE802154_MAX_CHANNEL ||
270 !(phy->supported.channels[page] & BIT(channel)))
271 return false;
272
273 return true;
274}
275
276/**
277 * struct ieee802154_addr - IEEE802.15.4 device address
278 * @mode: Address mode from frame header. Can be one of:
279 * - @IEEE802154_ADDR_NONE
280 * - @IEEE802154_ADDR_SHORT
281 * - @IEEE802154_ADDR_LONG
282 * @pan_id: The PAN ID this address belongs to
283 * @short_addr: address if @mode is @IEEE802154_ADDR_SHORT
284 * @extended_addr: address if @mode is @IEEE802154_ADDR_LONG
285 */
286struct ieee802154_addr {
287 u8 mode;
288 __le16 pan_id;
289 union {
290 __le16 short_addr;
291 __le64 extended_addr;
292 };
293};
294
295/**
296 * struct ieee802154_coord_desc - Coordinator descriptor
297 * @addr: PAN ID and coordinator address
298 * @page: page this coordinator is using
299 * @channel: channel this coordinator is using
300 * @superframe_spec: SuperFrame specification as received
301 * @link_quality: link quality indicator at which the beacon was received
302 * @gts_permit: the coordinator accepts GTS requests
303 */
304struct ieee802154_coord_desc {
305 struct ieee802154_addr addr;
306 u8 page;
307 u8 channel;
308 u16 superframe_spec;
309 u8 link_quality;
310 bool gts_permit;
311};
312
313/**
314 * struct ieee802154_pan_device - PAN device information
315 * @pan_id: the PAN ID of this device
316 * @mode: the preferred mode to reach the device
317 * @short_addr: the short address of this device
318 * @extended_addr: the extended address of this device
319 * @node: the list node
320 */
321struct ieee802154_pan_device {
322 __le16 pan_id;
323 u8 mode;
324 __le16 short_addr;
325 __le64 extended_addr;
326 struct list_head node;
327};
328
329/**
330 * struct cfg802154_scan_request - Scan request
331 *
332 * @type: type of scan to be performed
333 * @page: page on which to perform the scan
334 * @channels: channels in te %page to be scanned
335 * @duration: time spent on each channel, calculated with:
336 * aBaseSuperframeDuration * (2 ^ duration + 1)
337 * @wpan_dev: the wpan device on which to perform the scan
338 * @wpan_phy: the wpan phy on which to perform the scan
339 */
340struct cfg802154_scan_request {
341 enum nl802154_scan_types type;
342 u8 page;
343 u32 channels;
344 u8 duration;
345 struct wpan_dev *wpan_dev;
346 struct wpan_phy *wpan_phy;
347};
348
349/**
350 * struct cfg802154_beacon_request - Beacon request descriptor
351 *
352 * @interval: interval n between sendings, in multiple order of the super frame
353 * duration: aBaseSuperframeDuration * (2^n) unless the interval
354 * order is greater or equal to 15, in this case beacons won't be
355 * passively sent out at a fixed rate but instead inform the device
356 * that it should answer beacon requests as part of active scan
357 * procedures
358 * @wpan_dev: the concerned wpan device
359 * @wpan_phy: the wpan phy this was for
360 */
361struct cfg802154_beacon_request {
362 u8 interval;
363 struct wpan_dev *wpan_dev;
364 struct wpan_phy *wpan_phy;
365};
366
367/**
368 * struct cfg802154_mac_pkt - MAC packet descriptor (beacon/command)
369 * @node: MAC packets to process list member
370 * @skb: the received sk_buff
371 * @sdata: the interface on which @skb was received
372 * @page: page configuration when @skb was received
373 * @channel: channel configuration when @skb was received
374 */
375struct cfg802154_mac_pkt {
376 struct list_head node;
377 struct sk_buff *skb;
378 struct ieee802154_sub_if_data *sdata;
379 u8 page;
380 u8 channel;
381};
382
383struct ieee802154_llsec_key_id {
384 u8 mode;
385 u8 id;
386 union {
387 struct ieee802154_addr device_addr;
388 __le32 short_source;
389 __le64 extended_source;
390 };
391};
392
393#define IEEE802154_LLSEC_KEY_SIZE 16
394
395struct ieee802154_llsec_key {
396 u8 frame_types;
397 u32 cmd_frame_ids;
398 /* TODO replace with NL802154_KEY_SIZE */
399 u8 key[IEEE802154_LLSEC_KEY_SIZE];
400};
401
402struct ieee802154_llsec_key_entry {
403 struct list_head list;
404
405 struct ieee802154_llsec_key_id id;
406 struct ieee802154_llsec_key *key;
407};
408
409struct ieee802154_llsec_params {
410 bool enabled;
411
412 __be32 frame_counter;
413 u8 out_level;
414 struct ieee802154_llsec_key_id out_key;
415
416 __le64 default_key_source;
417
418 __le16 pan_id;
419 __le64 hwaddr;
420 __le64 coord_hwaddr;
421 __le16 coord_shortaddr;
422};
423
424struct ieee802154_llsec_table {
425 struct list_head keys;
426 struct list_head devices;
427 struct list_head security_levels;
428};
429
430struct ieee802154_llsec_seclevel {
431 struct list_head list;
432
433 u8 frame_type;
434 u8 cmd_frame_id;
435 bool device_override;
436 u32 sec_levels;
437};
438
439struct ieee802154_llsec_device {
440 struct list_head list;
441
442 __le16 pan_id;
443 __le16 short_addr;
444 __le64 hwaddr;
445 u32 frame_counter;
446 bool seclevel_exempt;
447
448 u8 key_mode;
449 struct list_head keys;
450};
451
452struct ieee802154_llsec_device_key {
453 struct list_head list;
454
455 struct ieee802154_llsec_key_id key_id;
456 u32 frame_counter;
457};
458
459struct wpan_dev_header_ops {
460 /* TODO create callback currently assumes ieee802154_mac_cb inside
461 * skb->cb. This should be changed to give these information as
462 * parameter.
463 */
464 int (*create)(struct sk_buff *skb, struct net_device *dev,
465 const struct ieee802154_addr *daddr,
466 const struct ieee802154_addr *saddr,
467 unsigned int len);
468};
469
470struct wpan_dev {
471 struct wpan_phy *wpan_phy;
472 int iftype;
473
474 /* the remainder of this struct should be private to cfg802154 */
475 struct list_head list;
476 struct net_device *netdev;
477
478 const struct wpan_dev_header_ops *header_ops;
479
480 /* lowpan interface, set when the wpan_dev belongs to one lowpan_dev */
481 struct net_device *lowpan_dev;
482
483 u32 identifier;
484
485 /* MAC PIB */
486 __le16 pan_id;
487 __le16 short_addr;
488 __le64 extended_addr;
489
490 /* MAC BSN field */
491 atomic_t bsn;
492 /* MAC DSN field */
493 atomic_t dsn;
494
495 u8 min_be;
496 u8 max_be;
497 u8 csma_retries;
498 s8 frame_retries;
499
500 bool lbt;
501
502 /* fallback for acknowledgment bit setting */
503 bool ackreq;
504
505 /* Associations */
506 struct mutex association_lock;
507 struct ieee802154_pan_device *parent;
508 struct list_head children;
509 unsigned int max_associations;
510 unsigned int nchildren;
511};
512
513#define to_phy(_dev) container_of(_dev, struct wpan_phy, dev)
514
515#if IS_ENABLED(CONFIG_IEEE802154) || IS_ENABLED(CONFIG_6LOWPAN)
516static inline int
517wpan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
518 const struct ieee802154_addr *daddr,
519 const struct ieee802154_addr *saddr,
520 unsigned int len)
521{
522 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
523
524 return wpan_dev->header_ops->create(skb, dev, daddr, saddr, len);
525}
526#endif
527
528struct wpan_phy *
529wpan_phy_new(const struct cfg802154_ops *ops, size_t priv_size);
530static inline void wpan_phy_set_dev(struct wpan_phy *phy, struct device *dev)
531{
532 phy->dev.parent = dev;
533}
534
535int wpan_phy_register(struct wpan_phy *phy);
536void wpan_phy_unregister(struct wpan_phy *phy);
537void wpan_phy_free(struct wpan_phy *phy);
538/* Same semantics as for class_for_each_device */
539int wpan_phy_for_each(int (*fn)(struct wpan_phy *phy, void *data), void *data);
540
541static inline void *wpan_phy_priv(struct wpan_phy *phy)
542{
543 BUG_ON(!phy);
544 return &phy->priv;
545}
546
547struct wpan_phy *wpan_phy_find(const char *str);
548
549static inline void wpan_phy_put(struct wpan_phy *phy)
550{
551 put_device(&phy->dev);
552}
553
554static inline const char *wpan_phy_name(struct wpan_phy *phy)
555{
556 return dev_name(&phy->dev);
557}
558
559void ieee802154_configure_durations(struct wpan_phy *phy,
560 unsigned int page, unsigned int channel);
561
562/**
563 * cfg802154_device_is_associated - Checks whether we are associated to any device
564 * @wpan_dev: the wpan device
565 * @return: true if we are associated
566 */
567bool cfg802154_device_is_associated(struct wpan_dev *wpan_dev);
568
569/**
570 * cfg802154_device_is_parent - Checks if a device is our coordinator
571 * @wpan_dev: the wpan device
572 * @target: the expected parent
573 * @return: true if @target is our coordinator
574 */
575bool cfg802154_device_is_parent(struct wpan_dev *wpan_dev,
576 struct ieee802154_addr *target);
577
578/**
579 * cfg802154_device_is_child - Checks whether a device is associated to us
580 * @wpan_dev: the wpan device
581 * @target: the expected child
582 * @return: the PAN device
583 */
584struct ieee802154_pan_device *
585cfg802154_device_is_child(struct wpan_dev *wpan_dev,
586 struct ieee802154_addr *target);
587
588/**
589 * cfg802154_set_max_associations - Limit the number of future associations
590 * @wpan_dev: the wpan device
591 * @max: the maximum number of devices we accept to associate
592 * @return: the old maximum value
593 */
594unsigned int cfg802154_set_max_associations(struct wpan_dev *wpan_dev,
595 unsigned int max);
596
597/**
598 * cfg802154_get_free_short_addr - Get a free address among the known devices
599 * @wpan_dev: the wpan device
600 * @return: a random short address expectedly unused on our PAN
601 */
602__le16 cfg802154_get_free_short_addr(struct wpan_dev *wpan_dev);
603
604#endif /* __NET_CFG802154_H */