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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
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
79
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
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
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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
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181
182
183 const void *privid;
184
185 u32 flags;
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191
192 u8 current_channel;
193 u8 current_page;
194 struct wpan_phy_supported supported;
195
196 s32 transmit_power;
197 struct wpan_phy_cca cca;
198
199 __le64 perm_extended_addr;
200
201
202 s32 cca_ed_level;
203
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206
207 u32 symbol_duration;
208
209 u16 lifs_period;
210 u16 sifs_period;
211
212 struct device dev;
213
214
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}
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239
240struct ieee802154_addr {
241 u8 mode;
242 __le16 pan_id;
243 union {
244 __le16 short_addr;
245 __le64 extended_addr;
246 };
247};
248
249struct ieee802154_llsec_key_id {
250 u8 mode;
251 u8 id;
252 union {
253 struct ieee802154_addr device_addr;
254 __le32 short_source;
255 __le64 extended_source;
256 };
257};
258
259#define IEEE802154_LLSEC_KEY_SIZE 16
260
261struct ieee802154_llsec_key {
262 u8 frame_types;
263 u32 cmd_frame_ids;
264
265 u8 key[IEEE802154_LLSEC_KEY_SIZE];
266};
267
268struct ieee802154_llsec_key_entry {
269 struct list_head list;
270
271 struct ieee802154_llsec_key_id id;
272 struct ieee802154_llsec_key *key;
273};
274
275struct ieee802154_llsec_params {
276 bool enabled;
277
278 __be32 frame_counter;
279 u8 out_level;
280 struct ieee802154_llsec_key_id out_key;
281
282 __le64 default_key_source;
283
284 __le16 pan_id;
285 __le64 hwaddr;
286 __le64 coord_hwaddr;
287 __le16 coord_shortaddr;
288};
289
290struct ieee802154_llsec_table {
291 struct list_head keys;
292 struct list_head devices;
293 struct list_head security_levels;
294};
295
296struct ieee802154_llsec_seclevel {
297 struct list_head list;
298
299 u8 frame_type;
300 u8 cmd_frame_id;
301 bool device_override;
302 u32 sec_levels;
303};
304
305struct ieee802154_llsec_device {
306 struct list_head list;
307
308 __le16 pan_id;
309 __le16 short_addr;
310 __le64 hwaddr;
311 u32 frame_counter;
312 bool seclevel_exempt;
313
314 u8 key_mode;
315 struct list_head keys;
316};
317
318struct ieee802154_llsec_device_key {
319 struct list_head list;
320
321 struct ieee802154_llsec_key_id key_id;
322 u32 frame_counter;
323};
324
325struct wpan_dev_header_ops {
326
327
328
329
330 int (*create)(struct sk_buff *skb, struct net_device *dev,
331 const struct ieee802154_addr *daddr,
332 const struct ieee802154_addr *saddr,
333 unsigned int len);
334};
335
336struct wpan_dev {
337 struct wpan_phy *wpan_phy;
338 int iftype;
339
340
341 struct list_head list;
342 struct net_device *netdev;
343
344 const struct wpan_dev_header_ops *header_ops;
345
346
347 struct net_device *lowpan_dev;
348
349 u32 identifier;
350
351
352 __le16 pan_id;
353 __le16 short_addr;
354 __le64 extended_addr;
355
356
357 atomic_t bsn;
358
359 atomic_t dsn;
360
361 u8 min_be;
362 u8 max_be;
363 u8 csma_retries;
364 s8 frame_retries;
365
366 bool lbt;
367
368 bool promiscuous_mode;
369
370
371 bool ackreq;
372};
373
374#define to_phy(_dev) container_of(_dev, struct wpan_phy, dev)
375
376#if IS_ENABLED(CONFIG_IEEE802154) || IS_ENABLED(CONFIG_6LOWPAN)
377static inline int
378wpan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
379 const struct ieee802154_addr *daddr,
380 const struct ieee802154_addr *saddr,
381 unsigned int len)
382{
383 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
384
385 return wpan_dev->header_ops->create(skb, dev, daddr, saddr, len);
386}
387#endif
388
389struct wpan_phy *
390wpan_phy_new(const struct cfg802154_ops *ops, size_t priv_size);
391static inline void wpan_phy_set_dev(struct wpan_phy *phy, struct device *dev)
392{
393 phy->dev.parent = dev;
394}
395
396int wpan_phy_register(struct wpan_phy *phy);
397void wpan_phy_unregister(struct wpan_phy *phy);
398void wpan_phy_free(struct wpan_phy *phy);
399
400int wpan_phy_for_each(int (*fn)(struct wpan_phy *phy, void *data), void *data);
401
402static inline void *wpan_phy_priv(struct wpan_phy *phy)
403{
404 BUG_ON(!phy);
405 return &phy->priv;
406}
407
408struct wpan_phy *wpan_phy_find(const char *str);
409
410static inline void wpan_phy_put(struct wpan_phy *phy)
411{
412 put_device(&phy->dev);
413}
414
415static inline const char *wpan_phy_name(struct wpan_phy *phy)
416{
417 return dev_name(&phy->dev);
418}
419
420void ieee802154_configure_durations(struct wpan_phy *phy);
421
422#endif
423