/* Copyright 2021 The libwifi Authors * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "radiotap.h" #include "../../core/radiotap/radiotap_iter.h" #include #include /** * The libwifi radiotap parser uses the usual ieee80211_radiotap_iterator to parse incoming * radiotap headers into a consumable libwifi_radiotap_info struct. */ void libwifi_parse_radiotap_info(struct libwifi_radiotap_info *info, const unsigned char *frame) { memset(info, 0, sizeof(struct libwifi_radiotap_info)); struct ieee80211_radiotap_header *rh = (struct ieee80211_radiotap_header *) frame; struct ieee80211_radiotap_iterator it = {0}; int ret = ieee80211_radiotap_iterator_init(&it, (void *) frame, rh->it_len, NULL); int skipped_antenna = 0; info->length = rh->it_len; while (!ret) { switch (it.this_arg_index) { case IEEE80211_RADIOTAP_CHANNEL: info->channel.freq = le16toh(*(uint16_t *) it.this_arg); info->channel.flags = le16toh(*(uint16_t *) (it.this_arg + 2)); break; case IEEE80211_RADIOTAP_RATE: info->rate_raw = *it.this_arg; info->rate = (*it.this_arg / 2.0); break; case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: // Radiotap Headers will include the ANTSIGNAL without an explicit Antenna definition. if (!skipped_antenna) { info->signal = *it.this_arg; skipped_antenna = 1; break; } if (info->antenna_count < LIBWIFI_MAX_RADIOTAP_ANTENNAS) { struct libwifi_radiotap_antenna antenna = {.antenna_number = info->antenna_count, .signal = *it.this_arg}; info->antennas[info->antenna_count] = antenna; info->antenna_count += 1; } break; case IEEE80211_RADIOTAP_ANTENNA: info->antennas[info->antenna_count - 1].antenna_number = *it.this_arg; break; case IEEE80211_RADIOTAP_DBM_ANTNOISE: break; case IEEE80211_RADIOTAP_FLAGS: info->flags = *it.this_arg; break; case IEEE80211_RADIOTAP_EXT: info->extended_flags = *it.this_arg; break; case IEEE80211_RADIOTAP_RX_FLAGS: info->rx_flags = *it.this_arg; break; case IEEE80211_RADIOTAP_TX_FLAGS: info->tx_flags = *it.this_arg; break; case IEEE80211_RADIOTAP_MCS: info->mcs.known = *(uint8_t *) it.this_arg; info->mcs.flags = *(uint8_t *) (it.this_arg + 2); info->mcs.mcs = *(uint8_t *) (it.this_arg + 3); break; case IEEE80211_RADIOTAP_DBM_TX_POWER: info->tx_power = *it.this_arg; break; case IEEE80211_RADIOTAP_TIMESTAMP: info->timestamp.timestamp = le64toh(*(uint64_t *) it.this_arg); info->timestamp.accuracy = le16toh(*(uint16_t *) (it.this_arg + 2)); info->timestamp.unit = *(uint8_t *) (it.this_arg + 3); info->timestamp.flags = *(uint8_t *) (it.this_arg + 4); break; case IEEE80211_RADIOTAP_RTS_RETRIES: info->rts_retries = *it.this_arg; break; case IEEE80211_RADIOTAP_DATA_RETRIES: info->data_retries = *it.this_arg; break; } ret = ieee80211_radiotap_iterator_next(&it); } } /** * A simpler function than the main libwifi_parse_radiotap_info function, designed to extract * only the signal strength field. */ int8_t libwifi_parse_radi
name: "Mastery Room"
display_name: "Repetitive"
masteries {
  name: "MASTERY"
  path: "Components/Collectables/smiley"
}
generated by cgit-pink 1.4.1 (git 2.36.1) at 2026-02-20 00:59:51 +0000