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fix(802.15.4): fix a risk for receive_at and ignore bit8 for the frame length

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zwx 2024-05-15 10:57:08 +08:00
parent 78e44855ca
commit efd1d0fa7b
1 changed files with 3 additions and 1 deletions
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4
components/ieee802154/driver/esp_ieee802154_dev.c
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@ -88,6 +88,8 @@ static void ieee802154_receive_done(uint8_t *data, esp_ieee802154_frame_info_t *
esp_rom_printf("receive buffer full, drop the current frame.\n");
} else {
// Otherwise, post it to the upper layer.
// Ignore bit8 for the frame length, due to the max frame length is 127 based 802.15.4 spec.
data[0] = data[0] & 0x7f;
frame_info->process = true;
esp_ieee802154_receive_done(data, frame_info);
}
@ -900,11 +902,11 @@ esp_err_t ieee802154_receive_at(uint32_t time)
uint32_t rx_target_time = time - IEEE802154_RX_RAMPUP_TIME_US;
uint32_t current_time;
IEEE802154_RF_ENABLE();
ieee802154_enter_critical();
rx_init();
IEEE802154_SET_TXRX_PTI(IEEE802154_SCENE_RX_AT);
set_next_rx_buffer();
ieee802154_set_state(IEEE802154_STATE_RX);
ieee802154_enter_critical();
ieee802154_etm_set_event_task(IEEE802154_ETM_CHANNEL1, ETM_EVENT_TIMER0_OVERFLOW, ETM_TASK_RX_START);
current_time = (uint32_t)esp_timer_get_time();
ieee802154_timer0_set_threshold((is_target_time_expired(rx_target_time, current_time) ? 0 : (rx_target_time - current_time))); //uint: 1us