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9ec76716 SL |
1 | /* |
2 | * IEEE802.15.4-2003 specification | |
3 | * | |
4 | * Copyright (C) 2007, 2008 Siemens AG | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 | |
8 | * as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
9ec76716 SL |
15 | * Written by: |
16 | * Pavel Smolenskiy <pavel.smolenskiy@gmail.com> | |
17 | * Maxim Gorbachyov <maxim.gorbachev@siemens.com> | |
18 | * Maxim Osipov <maxim.osipov@siemens.com> | |
19 | * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> | |
719269af | 20 | * Alexander Smirnov <alex.bluesman.smirnov@gmail.com> |
9ec76716 SL |
21 | */ |
22 | ||
4ca24aca AA |
23 | #ifndef LINUX_IEEE802154_H |
24 | #define LINUX_IEEE802154_H | |
9ec76716 | 25 | |
fa491001 | 26 | #include <linux/types.h> |
35d5a374 | 27 | #include <linux/random.h> |
fa491001 | 28 | |
719269af | 29 | #define IEEE802154_MTU 127 |
306f7aa1 AA |
30 | #define IEEE802154_ACK_PSDU_LEN 5 |
31 | #define IEEE802154_MIN_PSDU_LEN 9 | |
3f3c4bb5 | 32 | #define IEEE802154_FCS_LEN 2 |
87a93e4e AA |
33 | #define IEEE802154_MAX_AUTH_TAG_LEN 16 |
34 | ||
35 | /* General MAC frame format: | |
36 | * 2 bytes: Frame Control | |
37 | * 1 byte: Sequence Number | |
38 | * 20 bytes: Addressing fields | |
39 | * 14 bytes: Auxiliary Security Header | |
40 | */ | |
41 | #define IEEE802154_MAX_HEADER_LEN (2 + 1 + 20 + 14) | |
42 | #define IEEE802154_MIN_HEADER_LEN (IEEE802154_ACK_PSDU_LEN - \ | |
43 | IEEE802154_FCS_LEN) | |
719269af | 44 | |
702bf371 | 45 | #define IEEE802154_PAN_ID_BROADCAST 0xffff |
9830c62a AA |
46 | #define IEEE802154_ADDR_SHORT_BROADCAST 0xffff |
47 | #define IEEE802154_ADDR_SHORT_UNSPEC 0xfffe | |
702bf371 | 48 | |
1906bbbd AA |
49 | #define IEEE802154_EXTENDED_ADDR_LEN 8 |
50 | ||
61f2dcba AA |
51 | #define IEEE802154_LIFS_PERIOD 40 |
52 | #define IEEE802154_SIFS_PERIOD 12 | |
3f3c4bb5 | 53 | #define IEEE802154_MAX_SIFS_FRAME_SIZE 18 |
61f2dcba | 54 | |
cb41c8dd AA |
55 | #define IEEE802154_MAX_CHANNEL 26 |
56 | #define IEEE802154_MAX_PAGE 31 | |
57 | ||
9ec76716 SL |
58 | #define IEEE802154_FC_TYPE_BEACON 0x0 /* Frame is beacon */ |
59 | #define IEEE802154_FC_TYPE_DATA 0x1 /* Frame is data */ | |
60 | #define IEEE802154_FC_TYPE_ACK 0x2 /* Frame is acknowledgment */ | |
61 | #define IEEE802154_FC_TYPE_MAC_CMD 0x3 /* Frame is MAC command */ | |
62 | ||
63 | #define IEEE802154_FC_TYPE_SHIFT 0 | |
64 | #define IEEE802154_FC_TYPE_MASK ((1 << 3) - 1) | |
65 | #define IEEE802154_FC_TYPE(x) ((x & IEEE802154_FC_TYPE_MASK) >> IEEE802154_FC_TYPE_SHIFT) | |
66 | #define IEEE802154_FC_SET_TYPE(v, x) do { \ | |
67 | v = (((v) & ~IEEE802154_FC_TYPE_MASK) | \ | |
68 | (((x) << IEEE802154_FC_TYPE_SHIFT) & IEEE802154_FC_TYPE_MASK)); \ | |
69 | } while (0) | |
70 | ||
94b4f6c2 PB |
71 | #define IEEE802154_FC_SECEN_SHIFT 3 |
72 | #define IEEE802154_FC_SECEN (1 << IEEE802154_FC_SECEN_SHIFT) | |
73 | #define IEEE802154_FC_FRPEND_SHIFT 4 | |
74 | #define IEEE802154_FC_FRPEND (1 << IEEE802154_FC_FRPEND_SHIFT) | |
75 | #define IEEE802154_FC_ACK_REQ_SHIFT 5 | |
76 | #define IEEE802154_FC_ACK_REQ (1 << IEEE802154_FC_ACK_REQ_SHIFT) | |
77 | #define IEEE802154_FC_INTRA_PAN_SHIFT 6 | |
78 | #define IEEE802154_FC_INTRA_PAN (1 << IEEE802154_FC_INTRA_PAN_SHIFT) | |
9ec76716 SL |
79 | |
80 | #define IEEE802154_FC_SAMODE_SHIFT 14 | |
81 | #define IEEE802154_FC_SAMODE_MASK (3 << IEEE802154_FC_SAMODE_SHIFT) | |
82 | #define IEEE802154_FC_DAMODE_SHIFT 10 | |
83 | #define IEEE802154_FC_DAMODE_MASK (3 << IEEE802154_FC_DAMODE_SHIFT) | |
84 | ||
94b4f6c2 PB |
85 | #define IEEE802154_FC_VERSION_SHIFT 12 |
86 | #define IEEE802154_FC_VERSION_MASK (3 << IEEE802154_FC_VERSION_SHIFT) | |
87 | #define IEEE802154_FC_VERSION(x) ((x & IEEE802154_FC_VERSION_MASK) >> IEEE802154_FC_VERSION_SHIFT) | |
88 | ||
9ec76716 SL |
89 | #define IEEE802154_FC_SAMODE(x) \ |
90 | (((x) & IEEE802154_FC_SAMODE_MASK) >> IEEE802154_FC_SAMODE_SHIFT) | |
91 | ||
92 | #define IEEE802154_FC_DAMODE(x) \ | |
93 | (((x) & IEEE802154_FC_DAMODE_MASK) >> IEEE802154_FC_DAMODE_SHIFT) | |
94 | ||
94b4f6c2 PB |
95 | #define IEEE802154_SCF_SECLEVEL_MASK 7 |
96 | #define IEEE802154_SCF_SECLEVEL_SHIFT 0 | |
97 | #define IEEE802154_SCF_SECLEVEL(x) (x & IEEE802154_SCF_SECLEVEL_MASK) | |
98 | #define IEEE802154_SCF_KEY_ID_MODE_SHIFT 3 | |
99 | #define IEEE802154_SCF_KEY_ID_MODE_MASK (3 << IEEE802154_SCF_KEY_ID_MODE_SHIFT) | |
100 | #define IEEE802154_SCF_KEY_ID_MODE(x) \ | |
101 | ((x & IEEE802154_SCF_KEY_ID_MODE_MASK) >> IEEE802154_SCF_KEY_ID_MODE_SHIFT) | |
102 | ||
103 | #define IEEE802154_SCF_KEY_IMPLICIT 0 | |
104 | #define IEEE802154_SCF_KEY_INDEX 1 | |
105 | #define IEEE802154_SCF_KEY_SHORT_INDEX 2 | |
106 | #define IEEE802154_SCF_KEY_HW_INDEX 3 | |
9ec76716 | 107 | |
c3a6114f PB |
108 | #define IEEE802154_SCF_SECLEVEL_NONE 0 |
109 | #define IEEE802154_SCF_SECLEVEL_MIC32 1 | |
110 | #define IEEE802154_SCF_SECLEVEL_MIC64 2 | |
111 | #define IEEE802154_SCF_SECLEVEL_MIC128 3 | |
112 | #define IEEE802154_SCF_SECLEVEL_ENC 4 | |
113 | #define IEEE802154_SCF_SECLEVEL_ENC_MIC32 5 | |
114 | #define IEEE802154_SCF_SECLEVEL_ENC_MIC64 6 | |
115 | #define IEEE802154_SCF_SECLEVEL_ENC_MIC128 7 | |
116 | ||
719269af | 117 | /* MAC footer size */ |
118 | #define IEEE802154_MFR_SIZE 2 /* 2 octets */ | |
119 | ||
9ec76716 SL |
120 | /* MAC's Command Frames Identifiers */ |
121 | #define IEEE802154_CMD_ASSOCIATION_REQ 0x01 | |
122 | #define IEEE802154_CMD_ASSOCIATION_RESP 0x02 | |
123 | #define IEEE802154_CMD_DISASSOCIATION_NOTIFY 0x03 | |
124 | #define IEEE802154_CMD_DATA_REQ 0x04 | |
125 | #define IEEE802154_CMD_PANID_CONFLICT_NOTIFY 0x05 | |
126 | #define IEEE802154_CMD_ORPHAN_NOTIFY 0x06 | |
127 | #define IEEE802154_CMD_BEACON_REQ 0x07 | |
128 | #define IEEE802154_CMD_COORD_REALIGN_NOTIFY 0x08 | |
129 | #define IEEE802154_CMD_GTS_REQ 0x09 | |
130 | ||
131 | /* | |
132 | * The return values of MAC operations | |
133 | */ | |
134 | enum { | |
135 | /* | |
136 | * The requested operation was completed successfully. | |
137 | * For a transmission request, this value indicates | |
138 | * a successful transmission. | |
139 | */ | |
140 | IEEE802154_SUCCESS = 0x0, | |
141 | ||
142 | /* The beacon was lost following a synchronization request. */ | |
143 | IEEE802154_BEACON_LOSS = 0xe0, | |
144 | /* | |
145 | * A transmission could not take place due to activity on the | |
146 | * channel, i.e., the CSMA-CA mechanism has failed. | |
147 | */ | |
148 | IEEE802154_CHNL_ACCESS_FAIL = 0xe1, | |
149 | /* The GTS request has been denied by the PAN coordinator. */ | |
150 | IEEE802154_DENINED = 0xe2, | |
151 | /* The attempt to disable the transceiver has failed. */ | |
152 | IEEE802154_DISABLE_TRX_FAIL = 0xe3, | |
153 | /* | |
154 | * The received frame induces a failed security check according to | |
155 | * the security suite. | |
156 | */ | |
157 | IEEE802154_FAILED_SECURITY_CHECK = 0xe4, | |
158 | /* | |
159 | * The frame resulting from secure processing has a length that is | |
160 | * greater than aMACMaxFrameSize. | |
161 | */ | |
162 | IEEE802154_FRAME_TOO_LONG = 0xe5, | |
163 | /* | |
164 | * The requested GTS transmission failed because the specified GTS | |
165 | * either did not have a transmit GTS direction or was not defined. | |
166 | */ | |
167 | IEEE802154_INVALID_GTS = 0xe6, | |
168 | /* | |
169 | * A request to purge an MSDU from the transaction queue was made using | |
170 | * an MSDU handle that was not found in the transaction table. | |
171 | */ | |
172 | IEEE802154_INVALID_HANDLE = 0xe7, | |
173 | /* A parameter in the primitive is out of the valid range.*/ | |
174 | IEEE802154_INVALID_PARAMETER = 0xe8, | |
175 | /* No acknowledgment was received after aMaxFrameRetries. */ | |
176 | IEEE802154_NO_ACK = 0xe9, | |
177 | /* A scan operation failed to find any network beacons.*/ | |
178 | IEEE802154_NO_BEACON = 0xea, | |
179 | /* No response data were available following a request. */ | |
180 | IEEE802154_NO_DATA = 0xeb, | |
181 | /* The operation failed because a short address was not allocated. */ | |
182 | IEEE802154_NO_SHORT_ADDRESS = 0xec, | |
183 | /* | |
184 | * A receiver enable request was unsuccessful because it could not be | |
185 | * completed within the CAP. | |
186 | */ | |
187 | IEEE802154_OUT_OF_CAP = 0xed, | |
188 | /* | |
189 | * A PAN identifier conflict has been detected and communicated to the | |
190 | * PAN coordinator. | |
191 | */ | |
192 | IEEE802154_PANID_CONFLICT = 0xee, | |
193 | /* A coordinator realignment command has been received. */ | |
194 | IEEE802154_REALIGMENT = 0xef, | |
195 | /* The transaction has expired and its information discarded. */ | |
196 | IEEE802154_TRANSACTION_EXPIRED = 0xf0, | |
197 | /* There is no capacity to store the transaction. */ | |
198 | IEEE802154_TRANSACTION_OVERFLOW = 0xf1, | |
199 | /* | |
200 | * The transceiver was in the transmitter enabled state when the | |
201 | * receiver was requested to be enabled. | |
202 | */ | |
203 | IEEE802154_TX_ACTIVE = 0xf2, | |
204 | /* The appropriate key is not available in the ACL. */ | |
205 | IEEE802154_UNAVAILABLE_KEY = 0xf3, | |
206 | /* | |
207 | * A SET/GET request was issued with the identifier of a PIB attribute | |
208 | * that is not supported. | |
209 | */ | |
210 | IEEE802154_UNSUPPORTED_ATTR = 0xf4, | |
211 | /* | |
212 | * A request to perform a scan operation failed because the MLME was | |
213 | * in the process of performing a previously initiated scan operation. | |
214 | */ | |
215 | IEEE802154_SCAN_IN_PROGRESS = 0xfc, | |
216 | }; | |
217 | ||
54552d03 AA |
218 | /* frame control handling */ |
219 | #define IEEE802154_FCTL_FTYPE 0x0003 | |
79750ac4 | 220 | #define IEEE802154_FCTL_ACKREQ 0x0020 |
54552d03 AA |
221 | #define IEEE802154_FCTL_INTRA_PAN 0x0040 |
222 | ||
223 | #define IEEE802154_FTYPE_DATA 0x0001 | |
224 | ||
225 | /* | |
226 | * ieee802154_is_data - check if type is IEEE802154_FTYPE_DATA | |
227 | * @fc: frame control bytes in little-endian byteorder | |
228 | */ | |
229 | static inline int ieee802154_is_data(__le16 fc) | |
230 | { | |
231 | return (fc & cpu_to_le16(IEEE802154_FCTL_FTYPE)) == | |
232 | cpu_to_le16(IEEE802154_FTYPE_DATA); | |
233 | } | |
234 | ||
79750ac4 AA |
235 | /** |
236 | * ieee802154_is_ackreq - check if acknowledgment request bit is set | |
237 | * @fc: frame control bytes in little-endian byteorder | |
238 | */ | |
239 | static inline bool ieee802154_is_ackreq(__le16 fc) | |
240 | { | |
241 | return fc & cpu_to_le16(IEEE802154_FCTL_ACKREQ); | |
242 | } | |
243 | ||
54552d03 AA |
244 | /** |
245 | * ieee802154_is_intra_pan - check if intra pan id communication | |
246 | * @fc: frame control bytes in little-endian byteorder | |
247 | */ | |
248 | static inline bool ieee802154_is_intra_pan(__le16 fc) | |
249 | { | |
250 | return fc & cpu_to_le16(IEEE802154_FCTL_INTRA_PAN); | |
251 | } | |
252 | ||
fa491001 AA |
253 | /** |
254 | * ieee802154_is_valid_psdu_len - check if psdu len is valid | |
306f7aa1 AA |
255 | * available lengths: |
256 | * 0-4 Reserved | |
257 | * 5 MPDU (Acknowledgment) | |
258 | * 6-8 Reserved | |
259 | * 9-127 MPDU | |
260 | * | |
fa491001 AA |
261 | * @len: psdu len with (MHR + payload + MFR) |
262 | */ | |
263 | static inline bool ieee802154_is_valid_psdu_len(const u8 len) | |
264 | { | |
306f7aa1 AA |
265 | return (len == IEEE802154_ACK_PSDU_LEN || |
266 | (len >= IEEE802154_MIN_PSDU_LEN && len <= IEEE802154_MTU)); | |
fa491001 | 267 | } |
9ec76716 | 268 | |
cb904b0a AA |
269 | /** |
270 | * ieee802154_is_valid_psdu_len - check if extended addr is valid | |
271 | * @addr: extended addr to check | |
272 | */ | |
daf4e2c8 | 273 | static inline bool ieee802154_is_valid_extended_unicast_addr(const __le64 addr) |
cb904b0a | 274 | { |
daf4e2c8 LB |
275 | /* Bail out if the address is all zero, or if the group |
276 | * address bit is set. | |
cb904b0a | 277 | */ |
0d8a52f9 | 278 | return ((addr != cpu_to_le64(0x0000000000000000ULL)) && |
daf4e2c8 | 279 | !(addr & cpu_to_le64(0x0100000000000000ULL))); |
cb904b0a AA |
280 | } |
281 | ||
35d5a374 AA |
282 | /** |
283 | * ieee802154_random_extended_addr - generates a random extended address | |
284 | * @addr: extended addr pointer to place the random address | |
285 | */ | |
286 | static inline void ieee802154_random_extended_addr(__le64 *addr) | |
287 | { | |
288 | get_random_bytes(addr, IEEE802154_EXTENDED_ADDR_LEN); | |
289 | ||
3b369bd2 LB |
290 | /* clear the group bit, and set the locally administered bit */ |
291 | ((u8 *)addr)[IEEE802154_EXTENDED_ADDR_LEN - 1] &= ~0x01; | |
292 | ((u8 *)addr)[IEEE802154_EXTENDED_ADDR_LEN - 1] |= 0x02; | |
35d5a374 AA |
293 | } |
294 | ||
4ca24aca | 295 | #endif /* LINUX_IEEE802154_H */ |