Lines Matching +full:align +full:- +full:size
26 [IEEE80211_RADIOTAP_TSFT] = { .align = 8, .size = 8, },
27 [IEEE80211_RADIOTAP_FLAGS] = { .align = 1, .size = 1, },
28 [IEEE80211_RADIOTAP_RATE] = { .align = 1, .size = 1, },
29 [IEEE80211_RADIOTAP_CHANNEL] = { .align = 2, .size = 4, },
30 [IEEE80211_RADIOTAP_FHSS] = { .align = 2, .size = 2, },
31 [IEEE80211_RADIOTAP_DBM_ANTSIGNAL] = { .align = 1, .size = 1, },
32 [IEEE80211_RADIOTAP_DBM_ANTNOISE] = { .align = 1, .size = 1, },
33 [IEEE80211_RADIOTAP_LOCK_QUALITY] = { .align = 2, .size = 2, },
34 [IEEE80211_RADIOTAP_TX_ATTENUATION] = { .align = 2, .size = 2, },
35 [IEEE80211_RADIOTAP_DB_TX_ATTENUATION] = { .align = 2, .size = 2, },
36 [IEEE80211_RADIOTAP_DBM_TX_POWER] = { .align = 1, .size = 1, },
37 [IEEE80211_RADIOTAP_ANTENNA] = { .align = 1, .size = 1, },
38 [IEEE80211_RADIOTAP_DB_ANTSIGNAL] = { .align = 1, .size = 1, },
39 [IEEE80211_RADIOTAP_DB_ANTNOISE] = { .align = 1, .size = 1, },
40 [IEEE80211_RADIOTAP_RX_FLAGS] = { .align = 2, .size = 2, },
41 [IEEE80211_RADIOTAP_TX_FLAGS] = { .align = 2, .size = 2, },
42 [IEEE80211_RADIOTAP_RTS_RETRIES] = { .align = 1, .size = 1, },
43 [IEEE80211_RADIOTAP_DATA_RETRIES] = { .align = 1, .size = 1, },
44 [IEEE80211_RADIOTAP_MCS] = { .align = 1, .size = 3, },
45 [IEEE80211_RADIOTAP_AMPDU_STATUS] = { .align = 4, .size = 8, },
46 [IEEE80211_RADIOTAP_VHT] = { .align = 2, .size = 12, },
58 * ieee80211_radiotap_iterator_init - radiotap parser iterator initialization
72 * call __ieee80211_radiotap_iterator_init() to init a semi-opaque iterator
76 * -ENOENT if there are no more args to parse, or -EINVAL if there is a problem.
83 * You can find the CPU-endian total radiotap header length in
84 * iterator->max_length after executing ieee80211_radiotap_iterator_init()
94 * See Documentation/networking/radiotap-headers.rst
104 return -EINVAL; in ieee80211_radiotap_iterator_init()
107 if (radiotap_header->it_version) in ieee80211_radiotap_iterator_init()
108 return -EINVAL; in ieee80211_radiotap_iterator_init()
111 if (max_length < get_unaligned_le16(&radiotap_header->it_len)) in ieee80211_radiotap_iterator_init()
112 return -EINVAL; in ieee80211_radiotap_iterator_init()
114 iterator->_rtheader = radiotap_header; in ieee80211_radiotap_iterator_init()
115 iterator->_max_length = get_unaligned_le16(&radiotap_header->it_len); in ieee80211_radiotap_iterator_init()
116 iterator->_arg_index = 0; in ieee80211_radiotap_iterator_init()
117 iterator->_bitmap_shifter = get_unaligned_le32(&radiotap_header->it_present); in ieee80211_radiotap_iterator_init()
118 iterator->_arg = (uint8_t *)radiotap_header->it_optional; in ieee80211_radiotap_iterator_init()
119 iterator->_reset_on_ext = 0; in ieee80211_radiotap_iterator_init()
120 iterator->_next_bitmap = radiotap_header->it_optional; in ieee80211_radiotap_iterator_init()
121 iterator->_vns = vns; in ieee80211_radiotap_iterator_init()
122 iterator->current_namespace = &radiotap_ns; in ieee80211_radiotap_iterator_init()
123 iterator->is_radiotap_ns = 1; in ieee80211_radiotap_iterator_init()
127 if (iterator->_bitmap_shifter & (BIT(IEEE80211_RADIOTAP_EXT))) { in ieee80211_radiotap_iterator_init()
128 if ((unsigned long)iterator->_arg - in ieee80211_radiotap_iterator_init()
129 (unsigned long)iterator->_rtheader + sizeof(uint32_t) > in ieee80211_radiotap_iterator_init()
130 (unsigned long)iterator->_max_length) in ieee80211_radiotap_iterator_init()
131 return -EINVAL; in ieee80211_radiotap_iterator_init()
132 while (get_unaligned_le32(iterator->_arg) & in ieee80211_radiotap_iterator_init()
134 iterator->_arg += sizeof(uint32_t); in ieee80211_radiotap_iterator_init()
142 if ((unsigned long)iterator->_arg - in ieee80211_radiotap_iterator_init()
143 (unsigned long)iterator->_rtheader + in ieee80211_radiotap_iterator_init()
145 (unsigned long)iterator->_max_length) in ieee80211_radiotap_iterator_init()
146 return -EINVAL; in ieee80211_radiotap_iterator_init()
149 iterator->_arg += sizeof(uint32_t); in ieee80211_radiotap_iterator_init()
158 iterator->this_arg = iterator->_arg; in ieee80211_radiotap_iterator_init()
171 iterator->current_namespace = NULL; in find_ns()
173 if (!iterator->_vns) in find_ns()
176 for (i = 0; i < iterator->_vns->n_ns; i++) { in find_ns()
177 if (iterator->_vns->ns[i].oui != oui) in find_ns()
179 if (iterator->_vns->ns[i].subns != subns) in find_ns()
182 iterator->current_namespace = &iterator->_vns->ns[i]; in find_ns()
190 * ieee80211_radiotap_iterator_next - return next radiotap parser iterator arg
194 * -ENOENT if there are no more args or -EINVAL
203 * little-endian format whatever the endianness of your CPU.
217 int pad, align, size, subns; in ieee80211_radiotap_iterator_next() local
221 if ((iterator->_arg_index % 32) == IEEE80211_RADIOTAP_EXT && in ieee80211_radiotap_iterator_next()
222 !(iterator->_bitmap_shifter & 1)) in ieee80211_radiotap_iterator_next()
223 return -ENOENT; in ieee80211_radiotap_iterator_next()
225 if (!(iterator->_bitmap_shifter & 1)) in ieee80211_radiotap_iterator_next()
228 /* get alignment/size of data */ in ieee80211_radiotap_iterator_next()
229 switch (iterator->_arg_index % 32) { in ieee80211_radiotap_iterator_next()
232 align = 1; in ieee80211_radiotap_iterator_next()
233 size = 0; in ieee80211_radiotap_iterator_next()
236 align = 2; in ieee80211_radiotap_iterator_next()
237 size = 6; in ieee80211_radiotap_iterator_next()
240 if (!iterator->current_namespace || in ieee80211_radiotap_iterator_next()
241 iterator->_arg_index >= iterator->current_namespace->n_bits) { in ieee80211_radiotap_iterator_next()
242 if (iterator->current_namespace == &radiotap_ns) in ieee80211_radiotap_iterator_next()
243 return -ENOENT; in ieee80211_radiotap_iterator_next()
244 align = 0; in ieee80211_radiotap_iterator_next()
246 align = iterator->current_namespace->align_size[iterator->_arg_index].align; in ieee80211_radiotap_iterator_next()
247 size = iterator->current_namespace->align_size[iterator->_arg_index].size; in ieee80211_radiotap_iterator_next()
249 if (!align) { in ieee80211_radiotap_iterator_next()
251 iterator->_arg = iterator->_next_ns_data; in ieee80211_radiotap_iterator_next()
253 iterator->current_namespace = NULL; in ieee80211_radiotap_iterator_next()
271 pad = ((unsigned long)iterator->_arg - in ieee80211_radiotap_iterator_next()
272 (unsigned long)iterator->_rtheader) & (align - 1); in ieee80211_radiotap_iterator_next()
275 iterator->_arg += align - pad; in ieee80211_radiotap_iterator_next()
277 if (iterator->_arg_index % 32 == IEEE80211_RADIOTAP_VENDOR_NAMESPACE) { in ieee80211_radiotap_iterator_next()
280 if ((unsigned long)iterator->_arg + size - in ieee80211_radiotap_iterator_next()
281 (unsigned long)iterator->_rtheader > in ieee80211_radiotap_iterator_next()
282 (unsigned long)iterator->_max_length) in ieee80211_radiotap_iterator_next()
283 return -EINVAL; in ieee80211_radiotap_iterator_next()
285 oui = (*iterator->_arg << 16) | in ieee80211_radiotap_iterator_next()
286 (*(iterator->_arg + 1) << 8) | in ieee80211_radiotap_iterator_next()
287 *(iterator->_arg + 2); in ieee80211_radiotap_iterator_next()
288 subns = *(iterator->_arg + 3); in ieee80211_radiotap_iterator_next()
292 vnslen = get_unaligned_le16(iterator->_arg + 4); in ieee80211_radiotap_iterator_next()
293 iterator->_next_ns_data = iterator->_arg + size + vnslen; in ieee80211_radiotap_iterator_next()
294 if (!iterator->current_namespace) in ieee80211_radiotap_iterator_next()
295 size += vnslen; in ieee80211_radiotap_iterator_next()
302 iterator->this_arg_index = iterator->_arg_index; in ieee80211_radiotap_iterator_next()
303 iterator->this_arg = iterator->_arg; in ieee80211_radiotap_iterator_next()
304 iterator->this_arg_size = size; in ieee80211_radiotap_iterator_next()
306 /* internally move on the size of this arg */ in ieee80211_radiotap_iterator_next()
307 iterator->_arg += size; in ieee80211_radiotap_iterator_next()
316 if ((unsigned long)iterator->_arg - in ieee80211_radiotap_iterator_next()
317 (unsigned long)iterator->_rtheader > in ieee80211_radiotap_iterator_next()
318 (unsigned long)iterator->_max_length) in ieee80211_radiotap_iterator_next()
319 return -EINVAL; in ieee80211_radiotap_iterator_next()
322 switch (iterator->_arg_index % 32) { in ieee80211_radiotap_iterator_next()
324 iterator->_reset_on_ext = 1; in ieee80211_radiotap_iterator_next()
326 iterator->is_radiotap_ns = 0; in ieee80211_radiotap_iterator_next()
333 iterator->this_arg_index = in ieee80211_radiotap_iterator_next()
335 if (!iterator->current_namespace) in ieee80211_radiotap_iterator_next()
339 iterator->_reset_on_ext = 1; in ieee80211_radiotap_iterator_next()
340 iterator->current_namespace = &radiotap_ns; in ieee80211_radiotap_iterator_next()
341 iterator->is_radiotap_ns = 1; in ieee80211_radiotap_iterator_next()
346 * -- move to next u32 bitmap in ieee80211_radiotap_iterator_next()
348 iterator->_bitmap_shifter = in ieee80211_radiotap_iterator_next()
349 get_unaligned_le32(iterator->_next_bitmap); in ieee80211_radiotap_iterator_next()
350 iterator->_next_bitmap++; in ieee80211_radiotap_iterator_next()
351 if (iterator->_reset_on_ext) in ieee80211_radiotap_iterator_next()
352 iterator->_arg_index = 0; in ieee80211_radiotap_iterator_next()
354 iterator->_arg_index++; in ieee80211_radiotap_iterator_next()
355 iterator->_reset_on_ext = 0; in ieee80211_radiotap_iterator_next()
361 iterator->_bitmap_shifter >>= 1; in ieee80211_radiotap_iterator_next()
362 iterator->_arg_index++; in ieee80211_radiotap_iterator_next()