mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
3d0b507346
When the compiler decides to inline a static function, linker script generator will complain about the missing function.
418 lines
14 KiB
C
418 lines
14 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2023-2024 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <string.h>
|
|
#include "esp_check.h"
|
|
#include "esp_attr.h"
|
|
#include "esp_ieee802154_dev.h"
|
|
#include "esp_ieee802154_frame.h"
|
|
#include "esp_ieee802154_util.h"
|
|
|
|
IEEE802154_STATIC IEEE802154_INLINE bool is_security_enabled(const uint8_t *frame)
|
|
{
|
|
return frame[IEEE802154_FRAME_SECURITY_OFFSET] & IEEE802154_FRAME_SECURITY_BIT;
|
|
}
|
|
|
|
IEEE802154_STATIC IEEE802154_INLINE bool is_ie_present(const uint8_t *frame)
|
|
{
|
|
return frame[IEEE802154_FRAME_IE_OFFSET] & IEEE802154_FRAME_IE_BIT;
|
|
}
|
|
|
|
IEEE802154_STATIC IEEE802154_INLINE bool is_dsn_present(const uint8_t *frame)
|
|
{
|
|
return ((ieee802154_frame_get_version(frame) != IEEE802154_FRAME_VERSION_2) ||
|
|
!(frame[IEEE802154_FRAME_DSN_OFFSET] & IEEE802154_FRAME_DSN_BIT));
|
|
}
|
|
|
|
IEEE802154_STATIC IEEE802154_INLINE uint8_t dst_addr_mode(const uint8_t *frame)
|
|
{
|
|
return frame[IEEE802154_FRAME_DST_MODE_OFFSET] & IEEE802154_FRAME_DST_MODE_MASK;
|
|
}
|
|
|
|
IEEE802154_STATIC IEEE802154_INLINE uint8_t src_addr_mode(const uint8_t *frame)
|
|
{
|
|
return frame[IEEE802154_FRAME_SRC_MODE_OFFSET] & IEEE802154_FRAME_SRC_MODE_MASK;
|
|
}
|
|
|
|
IEEE802154_STATIC IEEE802154_INLINE bool is_panid_compression(const uint8_t *frame)
|
|
{
|
|
return frame[IEEE802154_FRAME_PANID_COMP_OFFSET] & IEEE802154_FRAME_PANID_COMP_BIT;
|
|
}
|
|
|
|
IEEE802154_STATIC IEEE802154_INLINE bool is_suported_frame_type(uint8_t frame_type)
|
|
{
|
|
// HW supports 4 kinds of frame type: Beacon, Ack, Data, Command.
|
|
return (frame_type == IEEE802154_FRAME_TYPE_BEACON || frame_type == IEEE802154_FRAME_TYPE_DATA ||
|
|
frame_type == IEEE802154_FRAME_TYPE_ACK || frame_type == IEEE802154_FRAME_TYPE_COMMAND);
|
|
}
|
|
|
|
IEEE802154_STATIC IEEE802154_NOINLINE bool is_dst_panid_present(const uint8_t *frame)
|
|
{
|
|
uint8_t dst_mode = dst_addr_mode(frame);
|
|
bool dst_panid_present = false;
|
|
|
|
if (ieee802154_frame_get_version(frame) == IEEE802154_FRAME_VERSION_2) {
|
|
uint8_t src_mode = src_addr_mode(frame);
|
|
bool panid_compression = is_panid_compression(frame);
|
|
|
|
if (dst_mode != IEEE802154_FRAME_DST_MODE_NONE) { // dest address is present/short/extended
|
|
if ((src_mode == IEEE802154_FRAME_SRC_MODE_NONE && panid_compression) ||
|
|
(dst_mode == IEEE802154_FRAME_DST_MODE_EXT && src_mode == IEEE802154_FRAME_SRC_MODE_EXT && panid_compression)) {
|
|
dst_panid_present = false;
|
|
} else {
|
|
dst_panid_present = true;
|
|
}
|
|
} else { // dest address is not present
|
|
if (src_mode == IEEE802154_FRAME_SRC_MODE_NONE && panid_compression) {
|
|
dst_panid_present = true;
|
|
} else {
|
|
dst_panid_present = false;
|
|
}
|
|
}
|
|
} else { // frame version: 0b00, 0b01
|
|
dst_panid_present = (dst_mode != IEEE802154_FRAME_DST_MODE_NONE);
|
|
}
|
|
|
|
return dst_panid_present;
|
|
}
|
|
|
|
IEEE802154_STATIC IEEE802154_NOINLINE bool is_src_panid_present(const uint8_t *frame)
|
|
{
|
|
uint8_t src_mode = src_addr_mode(frame);
|
|
bool panid_compression = is_panid_compression(frame);
|
|
bool src_panid_present = false;
|
|
|
|
if (ieee802154_frame_get_version(frame) == IEEE802154_FRAME_VERSION_2) {
|
|
uint8_t dst_mode = dst_addr_mode(frame);
|
|
|
|
if (src_mode != IEEE802154_FRAME_SRC_MODE_NONE) {
|
|
if (dst_mode == IEEE802154_FRAME_DST_MODE_EXT && src_mode == IEEE802154_FRAME_SRC_MODE_EXT && !panid_compression) {
|
|
src_panid_present = false;
|
|
} else {
|
|
src_panid_present = !panid_compression;
|
|
}
|
|
} else {
|
|
src_panid_present = false;
|
|
}
|
|
} else { // frame version: 0b00, 0b01
|
|
if (src_mode != IEEE802154_FRAME_SRC_MODE_NONE) {
|
|
src_panid_present = !panid_compression;
|
|
} else {
|
|
src_panid_present = false;
|
|
}
|
|
}
|
|
|
|
return src_panid_present;
|
|
}
|
|
|
|
IEEE802154_STATIC uint8_t IEEE802154_INLINE ieee802154_frame_address_offset(const uint8_t *frame)
|
|
{
|
|
return IEEE802154_FRAME_PHR_SIZE + IEEE802154_FRAME_FCF_SIZE + (is_dsn_present(frame) ? IEEE802154_FRAME_DSN_SIZE : 0);
|
|
}
|
|
|
|
IEEE802154_STATIC IRAM_ATTR uint8_t ieee802154_frame_address_size(const uint8_t *frame)
|
|
{
|
|
uint8_t address_size = 0;
|
|
|
|
if (is_dst_panid_present(frame)) {
|
|
address_size += IEEE802154_FRAME_PANID_SIZE;
|
|
}
|
|
|
|
switch (dst_addr_mode(frame)) {
|
|
case IEEE802154_FRAME_DST_MODE_NONE:
|
|
break;
|
|
|
|
case IEEE802154_FRAME_DST_MODE_SHORT:
|
|
address_size += IEEE802154_FRAME_SHORT_ADDR_SIZE;
|
|
break;
|
|
|
|
case IEEE802154_FRAME_DST_MODE_EXT:
|
|
address_size += IEEE802154_FRAME_EXT_ADDR_SIZE;
|
|
break;
|
|
|
|
default:
|
|
return IEEE802154_FRAME_INVALID_OFFSET;
|
|
}
|
|
|
|
if (is_src_panid_present(frame)) {
|
|
address_size += IEEE802154_FRAME_PANID_SIZE;
|
|
}
|
|
|
|
switch (src_addr_mode(frame)) {
|
|
case IEEE802154_FRAME_SRC_MODE_NONE:
|
|
break;
|
|
|
|
case IEEE802154_FRAME_SRC_MODE_SHORT:
|
|
address_size += IEEE802154_FRAME_SHORT_ADDR_SIZE;
|
|
break;
|
|
|
|
case IEEE802154_FRAME_SRC_MODE_EXT:
|
|
address_size += IEEE802154_FRAME_EXT_ADDR_SIZE;
|
|
break;
|
|
|
|
default:
|
|
return IEEE802154_FRAME_INVALID_OFFSET;
|
|
}
|
|
|
|
return address_size;
|
|
}
|
|
|
|
IEEE802154_STATIC IEEE802154_NOINLINE uint8_t ieee802154_frame_security_header_offset(const uint8_t *frame)
|
|
{
|
|
ESP_RETURN_ON_FALSE_ISR(is_suported_frame_type(ieee802154_frame_get_type(frame)), IEEE802154_FRAME_INVALID_ADDR_MODE, IEEE802154_TAG, "invalid frame type");
|
|
uint8_t offset = ieee802154_frame_address_offset(frame);
|
|
uint8_t address_size = ieee802154_frame_address_size(frame);
|
|
|
|
ESP_RETURN_ON_FALSE_ISR(offset != IEEE802154_FRAME_INVALID_OFFSET, IEEE802154_FRAME_INVALID_OFFSET, IEEE802154_TAG, "invalid offset");
|
|
ESP_RETURN_ON_FALSE_ISR(address_size != IEEE802154_FRAME_INVALID_OFFSET, IEEE802154_FRAME_INVALID_OFFSET, IEEE802154_TAG, "invalid offset");
|
|
|
|
offset += address_size;
|
|
|
|
return offset;
|
|
}
|
|
|
|
IEEE802154_STATIC IEEE802154_NOINLINE uint8_t ieee802154_frame_get_security_field_len(const uint8_t *frame)
|
|
{
|
|
ESP_RETURN_ON_FALSE_ISR(is_suported_frame_type(ieee802154_frame_get_type(frame)), IEEE802154_FRAME_INVALID_OFFSET, IEEE802154_TAG, "invalid frame type");
|
|
|
|
uint8_t security_field_len = 0;
|
|
uint8_t offset = ieee802154_frame_security_header_offset(frame);
|
|
|
|
ESP_RETURN_ON_FALSE_ISR(offset != IEEE802154_FRAME_INVALID_OFFSET, IEEE802154_FRAME_INVALID_OFFSET, IEEE802154_TAG, "invalid offset");
|
|
|
|
security_field_len += IEEE802154_FRAME_SE_HEAD_SIZE;
|
|
uint8_t security_header = frame[offset];
|
|
|
|
if (security_header & IEEE802154_FRAME_COUNTER_SUPPRESS_BIT) {
|
|
security_field_len += 0;
|
|
} else {
|
|
security_field_len += IEEE802154_FRAME_COUNTER_SIZE;
|
|
}
|
|
|
|
switch (security_header & IEEE802154_FRAME_KEY_ID_MODE_MASK) {
|
|
case IEEE802154_FRAME_KEY_ID_MODE_1:
|
|
security_field_len += IEEE802154_FRAME_KEY_ID_MODE_1_SIZE;
|
|
break;
|
|
case IEEE802154_FRAME_KEY_ID_MODE_2:
|
|
security_field_len += IEEE802154_FRAME_KEY_ID_MODE_2_SIZE;
|
|
break;
|
|
case IEEE802154_FRAME_KEY_ID_MODE_3:
|
|
security_field_len += IEEE802154_FRAME_KEY_ID_MODE_3_SIZE;
|
|
break;
|
|
default:
|
|
security_field_len += 0;
|
|
break;
|
|
}
|
|
|
|
return security_field_len;
|
|
}
|
|
|
|
IEEE802154_STATIC uint8_t ieee802154_frame_ie_header_offset(const uint8_t *frame)
|
|
{
|
|
uint8_t offset = ieee802154_frame_security_header_offset(frame);
|
|
uint8_t security_field_len = ieee802154_frame_get_security_field_len(frame);
|
|
|
|
offset += security_field_len;
|
|
|
|
return offset;
|
|
}
|
|
|
|
IEEE802154_STATIC uint8_t ieee802154_frame_get_mic_len(const uint8_t *frame)
|
|
{
|
|
uint8_t offset = ieee802154_frame_security_header_offset(frame);
|
|
uint8_t mic_len = 0;
|
|
uint8_t security_header = frame[offset];
|
|
|
|
switch (security_header & IEEE802154_FRAME_SECURITY_MASK) {
|
|
case IEEE802154_FRAME_SECURITY_MIC_32:
|
|
case IEEE802154_FRAME_SECURITY_ENC_MIC_32:
|
|
mic_len = IEEE802154_FRAME_SECURITY_MIC_32_SIZE;
|
|
break;
|
|
case IEEE802154_FRAME_SECURITY_MIC_64:
|
|
case IEEE802154_FRAME_SECURITY_ENC_MIC_64:
|
|
mic_len = IEEE802154_FRAME_SECURITY_MIC_64_SIZE;
|
|
break;
|
|
case IEEE802154_FRAME_SECURITY_MIC_128:
|
|
case IEEE802154_FRAME_SECURITY_ENC_MIC_128:
|
|
mic_len = IEEE802154_FRAME_SECURITY_MIC_128_SIZE;
|
|
break;
|
|
default:
|
|
mic_len = 0;
|
|
break;
|
|
}
|
|
return mic_len;
|
|
}
|
|
|
|
IEEE802154_STATIC uint8_t ieee802154_frame_get_ie_field_len(const uint8_t *frame)
|
|
{
|
|
uint8_t offset = ieee802154_frame_ie_header_offset(frame);
|
|
uint8_t ie_field_len = 0;
|
|
uint8_t frame_footer_len = ieee802154_frame_get_mic_len(frame) + IEEE802154_FRAME_FCS_SIZE;
|
|
|
|
/* If the `offset + frame_footer_len == frame_len`, we exit the `while()`
|
|
loop. This covers the case where frame contains one or more Header IEs
|
|
but no data payload. In this case, 2015-spec does not
|
|
require Header IE termination to be included (it is optional)
|
|
since the end of frame can be determined from frame length and
|
|
footer length. (for details, please reference 2015 - spec table 7 - 6 in page 169) */
|
|
|
|
while (frame[0] > offset + ie_field_len + frame_footer_len) {
|
|
uint16_t ie_header = frame[offset + ie_field_len + 1] << 8 | frame[offset + ie_field_len];
|
|
// Header Termination IE 2 is used in to signal end of the MHR and beginning of the MAC Payload.
|
|
if ((ie_header & IEEE802154_FRAME_IE_HEAD_ID_MASK) == IEEE802154_IE_TYPE_HT2) {
|
|
ie_field_len += IEEE802154_FRAME_IE_HEAD_LEN;
|
|
break;
|
|
} else {
|
|
uint8_t ie_subfield_len = (ie_header & IEEE802154_FRAME_IE_SUBFIELD_LEN_MASK);
|
|
ie_field_len += IEEE802154_FRAME_IE_HEAD_LEN + ie_subfield_len;
|
|
}
|
|
}
|
|
return ie_field_len;
|
|
}
|
|
|
|
IEEE802154_STATIC IRAM_ATTR uint8_t ieee802154_frame_payload_offset(const uint8_t *frame)
|
|
{
|
|
uint8_t offset = ieee802154_frame_security_header_offset(frame);
|
|
if (is_security_enabled(frame)) {
|
|
// skip security field.
|
|
offset += ieee802154_frame_get_security_field_len(frame);
|
|
}
|
|
|
|
if (ieee802154_frame_get_version(frame) == IEEE802154_FRAME_VERSION_2 && is_ie_present(frame)) {
|
|
// skip IE fields.
|
|
offset += ieee802154_frame_get_ie_field_len(frame);
|
|
}
|
|
if (ieee802154_frame_get_version(frame) == IEEE802154_FRAME_VERSION_0 || ieee802154_frame_get_version(frame) == IEEE802154_FRAME_VERSION_1) {
|
|
if (ieee802154_frame_get_type(frame) == IEEE802154_FRAME_TYPE_BEACON) {
|
|
// TODO: skip beacon payload.
|
|
}
|
|
if (ieee802154_frame_get_type(frame) == IEEE802154_FRAME_TYPE_COMMAND) {
|
|
offset += IEEE802154_FRAME_COMMAND_ID_LEN;
|
|
}
|
|
}
|
|
|
|
return offset - 1;
|
|
}
|
|
|
|
uint8_t IEEE802154_INLINE ieee802154_frame_get_type(const uint8_t *frame)
|
|
{
|
|
return frame[IEEE802154_FRAME_TYPE_OFFSET] & IEEE802154_FRAME_TYPE_MASK;
|
|
}
|
|
|
|
uint8_t IEEE802154_INLINE ieee802154_frame_get_version(const uint8_t *frame)
|
|
{
|
|
return frame[IEEE802154_FRAME_VERSION_OFFSET] & IEEE802154_FRAME_VERSION_MASK;
|
|
}
|
|
|
|
bool IEEE802154_INLINE ieee802154_frame_is_ack_required(const uint8_t *frame)
|
|
{
|
|
return frame[IEEE802154_FRAME_AR_OFFSET] & IEEE802154_FRAME_AR_BIT;
|
|
}
|
|
|
|
uint8_t ieee802154_frame_get_dst_addr(const uint8_t *frame, uint8_t *addr)
|
|
{
|
|
ESP_RETURN_ON_FALSE_ISR(is_suported_frame_type(ieee802154_frame_get_type(frame)), IEEE802154_FRAME_INVALID_ADDR_MODE, IEEE802154_TAG, "invalid frame type");
|
|
|
|
uint8_t offset = ieee802154_frame_address_offset(frame);
|
|
uint8_t dst_mode = dst_addr_mode(frame);
|
|
uint8_t addr_size;
|
|
|
|
ESP_RETURN_ON_FALSE_ISR(dst_mode == IEEE802154_FRAME_DST_MODE_SHORT || dst_mode == IEEE802154_FRAME_DST_MODE_EXT, dst_mode, IEEE802154_TAG, "invalid address mode");
|
|
|
|
addr_size = (dst_mode == IEEE802154_FRAME_DST_MODE_SHORT) ? IEEE802154_FRAME_SHORT_ADDR_SIZE : IEEE802154_FRAME_EXT_ADDR_SIZE;
|
|
|
|
if (is_dst_panid_present(frame)) {
|
|
offset += IEEE802154_FRAME_PANID_SIZE;
|
|
}
|
|
|
|
memcpy(addr, frame + offset, addr_size);
|
|
|
|
return dst_mode;
|
|
}
|
|
|
|
uint8_t ieee802154_frame_get_src_addr(const uint8_t *frame, uint8_t *addr)
|
|
{
|
|
ESP_RETURN_ON_FALSE_ISR(is_suported_frame_type(ieee802154_frame_get_type(frame)), IEEE802154_FRAME_INVALID_ADDR_MODE, IEEE802154_TAG, "invalid frame type");
|
|
|
|
uint8_t offset = ieee802154_frame_address_offset(frame);
|
|
uint8_t dst_mode = dst_addr_mode(frame);
|
|
uint8_t src_mode = src_addr_mode(frame);
|
|
uint8_t addr_size;
|
|
|
|
ESP_RETURN_ON_FALSE_ISR(src_mode == IEEE802154_FRAME_SRC_MODE_SHORT || src_mode == IEEE802154_FRAME_SRC_MODE_EXT, src_mode, IEEE802154_TAG, "invalid address mode");
|
|
|
|
addr_size = (src_mode == IEEE802154_FRAME_SRC_MODE_SHORT) ? IEEE802154_FRAME_SHORT_ADDR_SIZE : IEEE802154_FRAME_EXT_ADDR_SIZE;
|
|
|
|
if (is_dst_panid_present(frame)) {
|
|
offset += IEEE802154_FRAME_PANID_SIZE;
|
|
}
|
|
|
|
switch (dst_mode) {
|
|
case IEEE802154_FRAME_DST_MODE_SHORT:
|
|
offset += IEEE802154_FRAME_SHORT_ADDR_SIZE;
|
|
break;
|
|
|
|
case IEEE802154_FRAME_DST_MODE_EXT:
|
|
offset += IEEE802154_FRAME_EXT_ADDR_SIZE;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (is_src_panid_present(frame)) {
|
|
offset += IEEE802154_FRAME_PANID_SIZE;
|
|
}
|
|
|
|
memcpy(addr, frame + offset, addr_size);
|
|
|
|
return src_mode;
|
|
}
|
|
|
|
uint8_t ieee802154_frame_get_security_payload_offset(uint8_t *frame)
|
|
{
|
|
return ieee802154_frame_payload_offset(frame);
|
|
}
|
|
|
|
esp_err_t ieee802154_frame_get_dest_panid(const uint8_t *frame, uint8_t *panid)
|
|
{
|
|
uint8_t offset = ieee802154_frame_address_offset(frame);
|
|
|
|
if (is_dst_panid_present(frame)) {
|
|
memcpy(panid, frame + offset, IEEE802154_FRAME_PANID_SIZE);
|
|
return ESP_OK;
|
|
}
|
|
return ESP_FAIL;
|
|
}
|
|
|
|
esp_err_t ieee802154_frame_get_src_panid(const uint8_t *frame, uint8_t *panid)
|
|
{
|
|
uint8_t offset = ieee802154_frame_address_offset(frame);
|
|
uint8_t dst_mode = dst_addr_mode(frame);
|
|
|
|
if (is_src_panid_present(frame)) {
|
|
if (is_dst_panid_present(frame)) {
|
|
offset += IEEE802154_FRAME_PANID_SIZE;
|
|
}
|
|
|
|
switch (dst_mode) {
|
|
case IEEE802154_FRAME_DST_MODE_SHORT:
|
|
offset += IEEE802154_FRAME_SHORT_ADDR_SIZE;
|
|
break;
|
|
|
|
case IEEE802154_FRAME_DST_MODE_EXT:
|
|
offset += IEEE802154_FRAME_EXT_ADDR_SIZE;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
memcpy(panid, frame + offset, IEEE802154_FRAME_PANID_SIZE);
|
|
return ESP_OK;
|
|
}
|
|
return ESP_FAIL;
|
|
}
|