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{
"configurations": {
"Launch": {
"adapter": "vscode-cpptools",
"configuration": {
"request": "launch",
"program": "./build/librnode_test",
"args": [],
"cwd": "~/Work/Repos/librnode/",
"MIMode": "gdb"
}
}
}
}

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GNU GENERAL PUBLIC LICENSE
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# Copyright (c) 2025 Jacob Eva (Liberated Embedded Systems)
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
# more details.
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <https://www.gnu.org/licenses/>.
# This makefile is for GNU / Linux.
CC=gcc
FLAGS=-DLOG_USE_COLOR -l crypto
LIB=librnode
SRCS=$(shell find src ! -name '*win32.c' -name '*.c' -type f)
OBJS=$(patsubst %.c,%.o,$(SRCS))
F_OBJS=$(notdir $(OBJS))
all: $(OBJS)
ar cr build/$(LIB).a -o $(F_OBJS)
mv *.o build
%.o: %.c
$(CC) $(FLAGS) $< -c
debug: FLAGS+=-g
debug: all
test: all
$(CC) tests/test.c -L build -l rnode -l tap -l crypto -l md -o build/librnode_test
test-debug: debug
$(CC) tests/test.c -L build -l rnode -l tap -l crypto -l md -g -o build/librnode_test
clean:
- rm -rf build
- mkdir build

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CC = gcc
CFLAGS = -Wall -O2 -I. -DWIN32
BIN = UartSecureDFU
DEPS = crc32.h \
delay_connect.h \
dfu.h \
dfu_serial.h \
logging.h \
slip_enc.h \
uart_drv.h \
uart_slip.h \
zip.h \
miniz.h \
jsmn.h \
Makefile
OBJS = crc32.o \
delay_connect.o \
dfu.o \
dfu_serial.o \
jsmn.o \
logging.o \
slip_enc.o \
uart_win32.o \
UartSecureDFU.o \
uart_slip.o \
zip.o
%.o: %.c $(DEPS)
$(CC) $(CFLAGS) -c $< -o $@
$(BIN): $(OBJS)
$(CC) $(OBJS) -o $(BIN)
clean:
rm -f $(BIN) $(OBJS)

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`librnode` is a C library which provides an object to interface with
transcievers built on the RNode platform. It is intended for use in RNode
configuration applications.

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/* Copyright (c) 2025 - Jacob Eva (Liberated Embedded Systems)
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LIBRNODE_H
#define LIBRNODE_H
#include <stdint.h>
#include <stdbool.h>
#include <openssl/evp.h>
#include <openssl/rsa.h>
#define MIN_FW_VER 1.66
// PLATFORMS
#define PLATFORM_ESP32 0x80
#define PLATFORM_NRF52 0x70
//
#define SERIAL_SIZE 4
#define MADE_SIZE 4
#define CHECKSUM_SIZE 16
#define SIGNATURE_SIZE 128
#define FW_HASH_SIZE 256 / 8
#define RESP_BUF_SIZE 512
#define EEPROM_SIZE 296
#define MAX_INTERFACES 256
#define FILE_MAX_SIZE 4 * 1024 * 1024 // 4MB max file size for single fw binary
// BLUETOOTH VALUES
#define BT_OFF 0
#define BT_ON 1
#define BT_PAIRING 2
//
struct RNode {
char* port;
int fd;
uint32_t baud;
uint8_t platform;
uint8_t mcu;
// EEPROM below here!
uint8_t product;
uint8_t model;
uint8_t hw_rev;
uint8_t serial[4];
uint8_t made[4];
uint8_t checksum[16];
uint8_t signature[128];
uint8_t lock_byte;
// All these have their own getter functions as they can change on runtime; the cached EEPROM values may not reflect the true status of the radio
uint8_t sf;
uint8_t cr;
uint8_t txp;
uint32_t bw;
uint32_t freq;
uint8_t cfg_ok;
bool bt;
bool disp_set;
uint8_t disp_int;
uint8_t disp_addr;
// This is where the EEPROM read directly from the RNode is stored
uint8_t r_eeprom[EEPROM_SIZE];
// END EEPROM
float st_alock;
float lt_alock;
uint32_t bt_pairing_pin;
// ESP32 only!
uint32_t boot_app0_addr;
uint32_t bootloader_addr;
uint32_t bin_addr;
uint32_t partitions_addr;
uint32_t console_image_addr;
//
float fw_ver;
bool connected;
// Multiple modems
uint8_t sel_int;
uint8_t interfaces[MAX_INTERFACES];
//
void (*prog_cb)(uint8_t);
};
/* Establishes communication with an RNode
* Params: port (e.g. /dev/ttyACM0), baud rate (e.g. 115200), detect (attempt
* to communicate with RNode), force_detect (fail if cannot communicate with
* RNode)
* Scope: public
* Returns:
* 0 - success
* -1 - generic error
*/
int rnode_init(struct RNode* rn, char* path, uint32_t baud, bool detect, bool force_detect);
/* Resets an RNode
* Scope: public
* Returns:
* 0 - success
* -1 - generic error
*/
int rnode_reset(struct RNode* rn);
/* Sets an RNode's platform attribute manually
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_set_platform(struct RNode* rn, uint8_t platform);
/* Enable / disable Bluetooth on an RNode
* Scope: public
* Returns
* > 0 - bluetooth pairing pin value
* 0 - success
* -1 - generic error
* -4 - rnode did not respond
*/
int rnode_set_bt(struct RNode* rn, uint8_t val);
/* Attempt to retrieve the BT pairing code of an RNode. Blocking function,
* should be run in a separate thread.
* Params: timeout (in ms, minimum value 200)
* Scope: public
* Returns
* > 0 - bluetooth pairing code
* 0 - success
* -1 - generic error
* -4 - rnode did not respond
*/
int rnode_get_bt_pin(struct RNode* rn, uint32_t timeout);
/* Display related functions */
/* Set display intensity on an RNode
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_set_disp_int(struct RNode* rn, uint8_t disp_int);
/* Set display timeout on an RNode
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_set_disp_timeout(struct RNode* rn, uint8_t timeout);
/* Set display address on an RNode
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_set_disp_addr(struct RNode* rn, uint8_t addr);
#define DISPLAY_PORTRAIT 0
#define DISPLAY_LANDSCAPE 1
#define DISPLAY_PORTRAIT_INV 2
#define DISPLAY_LANDSCAPE_INV 3
/* Set display rotation on an RNode
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_set_disp_rot(struct RNode* rn, uint8_t rot);
/* Start display reconditioning on an RNode
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_start_disp_recon(struct RNode* rn);
/* Set neopixel intensity on an RNode
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_set_np_int(struct RNode* rn, uint8_t np_int);
/* Get available interfaces on an RNode
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_get_interfaces(struct RNode* rn);
/* Select interface on an RNode (in preparation for running rnode_set_freq, etc)
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_select_interface(struct RNode* rn, uint8_t modem);
/* Set frequency on an RNode (in preparation for TNC mode)
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_set_freq(struct RNode* rn, uint32_t freq);
/* Get frequency on an RNode
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_get_freq(struct RNode* rn);
/* Set bandwidth on an RNode (in preparation for TNC mode)
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_set_bw(struct RNode* rn, uint32_t bw);
/* Get bandwidth on an RNode
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_get_bw(struct RNode* rn);
/* Set transmission power on an RNode
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_set_txp(struct RNode* rn, uint8_t txp);
/* Get transmission power on an RNode
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_get_txp(struct RNode* rn);
/* Set spreading factor on an RNode
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_set_sf(struct RNode* rn, uint8_t sf);
/* Get spreading factor on an RNode
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_get_sf(struct RNode* rn);
/* Set coding rate on an RNode
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_set_cr(struct RNode* rn, uint8_t cr);
/* Get coding rate on an RNode
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_get_cr(struct RNode* rn);
/* Set short term airtime limit on an RNode
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
float rnode_set_st_alock(struct RNode* rn, float at_l);
/* Set long term airtime limit on an RNode
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
float rnode_set_lt_alock(struct RNode* rn, float at_l);
/* Set radio modem state (on or off)
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_set_radio_state(struct RNode* rn, bool state);
/* Mode selection functions */
/* Enable the host-controlled (normal) mode of operation on an RNode
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_set_normal_mode(struct RNode* rn);
/* Enable the serial TNC mode of operation on an RNode
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_set_tnc_mode(struct RNode* rn);
/* EEPROM related functions */
/* Sets the firmware hash on an RNode.
* Scope: public
* Returns:
* 0 - success
* -1 - generic error
*/
int rnode_set_fw_hash(struct RNode* rn, uint8_t* hash);
/* Sets an RNode's product in its EEPROM
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_set_product(struct RNode* rn, uint8_t product);
/* Sets an RNode's model in its EEPROM
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_set_model(struct RNode* rn, uint8_t model);
/* Sets an RNode's hardware revision in its EEPROM
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_set_hw_rev(struct RNode* rn, uint8_t hw_rev);
/* Generate's an RNode's EEPROM signature from the checksum
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
void* rnode_generate_signature(struct RNode* rn, EVP_PKEY *signing_key);
/* Sets an RNode's signature in its EEPROM
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_set_signature(struct RNode* rn, uint8_t* data);
/* Sets an RNode's lock byte in its EEPROM
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_set_lock(struct RNode* rn);
/* Retrieve an RNode's EEPROM values into its struct
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_get_eeprom(struct RNode* rn);
/* Dump an RNode's entire EEPROM to r_eeprom
* Note: This will populate r_eeprom but not the cached EEPROM values. If you
* want to update the cached values, call rnode_get_eeprom instead.
* Scope: public
* Returns
* 0 - success
* -1 - generic error
*/
int rnode_dump_eeprom(struct RNode* rn);
/* Verify an RNode's EEPROM matches the expected values
* Scope: public
* Returns
* 0 - success
* value > 0 or value < 0 - EEPROM invalid
*/
int rnode_verify_eeprom(struct RNode* rn);
/* Wipes an RNode's EEPROM.
* Scope: public
* Returns:
* 0 - success
* -1 - generic error
* -2 - rnode not supported (firmware too old, please update)
*/
int rnode_wipe_eeprom(struct RNode* rn);
/* Flashes an RNode.
* Scope: public
* Returns:
* 0 - success
* -1 - generic error
* -9 - ESP32 image invalid, SHA256 digest incorrect
*/
int rnode_flash(struct RNode* rn, char* zip_path, bool update, uint8_t* serial, EVP_PKEY* priv_key, bool touch);
int rnode_cleanup(struct RNode* rn);
#endif

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#ifndef EEPROM_H
#define EEPROM_H
#define ADDR_PRODUCT 0x00
#define ADDR_MODEL 0x01
#define ADDR_HW_REV 0x02
#define ADDR_SERIAL 0x03
#define ADDR_MADE 0x07
#define ADDR_CHKSUM 0x0B
#define ADDR_SIGNATURE 0x1B
#define ADDR_INFO_LOCK 0x9B
#define ADDR_CONF_SF 0x9C
#define ADDR_CONF_CR 0x9D
#define ADDR_CONF_TXP 0x9E
#define ADDR_CONF_BW 0x9F
#define ADDR_CONF_FREQ 0xA3
#define ADDR_CONF_OK 0xA7
#define INFO_LOCK_BYTE 0x73
#define CONF_OK_BYTE 0x73
#endif

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MIT License
Copyright (c) 2021,2022 Cesanta
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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Original repo can be found here: https://github.com/cpq/esputil
Modified for use in librnode.

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#ifndef ESPUTIL_H
#define ESPUTIL_H
#include "../../../librnode.h"
int flash_full(struct RNode* rn, char* boot_app0, size_t boot_app0_size, char* bootloader, size_t bootloader_size, char* bin, size_t bin_size, char* partitions, size_t partitions_size, char* console, size_t console_size);
#endif

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Copyright (c) 2010 Serge A. Zaitsev
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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CC = gcc
CFLAGS = -Wall -O2 -I. -g -O0 -DLOG_USE_COLOR
BIN = UartSecureDFU
DEPS = crc16.h \
dfu.h \
dfu_serial.h \
hci.h \
slip_enc.h \
uart_drv.h \
uart_slip.h \
zip.h \
miniz.h \
jsmn.h \
../../../util.h \
../../logging/log.h \
Makefile
OBJS = crc16.o \
dfu.o \
dfu_serial.o \
hci.o \
jsmn.o \
slip_enc.o \
uart_linux.o \
UartSecureDFU.o \
uart_slip.o \
../../../util.o \
../../logging/log.o \
zip.o
%.o: %.c $(DEPS)
$(CC) $(CFLAGS) -c $< -o $@
$(BIN): $(OBJS)
$(CC) $(OBJS) -o $(BIN)
clean:
rm -f $(BIN) $(OBJS)

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CC = gcc
CFLAGS = -Wall -O2 -I. -DWIN32
BIN = UartSecureDFU
DEPS = crc32.h \
delay_connect.h \
dfu.h \
dfu_serial.h \
logging.h \
slip_enc.h \
uart_drv.h \
uart_slip.h \
zip.h \
miniz.h \
jsmn.h \
Makefile
OBJS = crc32.o \
delay_connect.o \
dfu.o \
dfu_serial.o \
jsmn.o \
logging.o \
slip_enc.o \
uart_win32.o \
UartSecureDFU.o \
uart_slip.o \
zip.o
%.o: %.c $(DEPS)
$(CC) $(CFLAGS) -c $< -o $@
$(BIN): $(OBJS)
$(CC) $(OBJS) -o $(BIN)
clean:
rm -f $(BIN) $(OBJS)

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# librnode - nRF52 serial DFU flasher
This utility is for flashing nRF52-based modules which run the Adafruit bootloader, for example the RAK4631.
It is based on the `nrf-slim-serial-uart-dfu-host-c-code` project by [Jimmy Wong](https://github.com/jimmywong2003/nrf-slim-serial-uart-dfu-host-c-code), which has been extended to specifically support devices with an Adafruit bootloader. This has been achieved by referencing Adafruit nRFutil and [Liam Cottle's web flasher for RNodes](https://github.com/liamcottle/rnode-flasher).
UART bit rate is 115200bps with 8-N-1 data format. RTS/CTS flow control is
disabled. This program takes the DFU package ZIP file generated by
`adafruit-nrfutil`, which is used in the
[RNode_Firmware](https://github.com/markqvist/RNode_Firmware) project's build
system.
## Supports
nRF52840 (tested).
Whether this flasher will work on other nRF52 chips is currently unknown, but it is expected they *should* work.

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/**
* Copyright (c) 2013 - 2018, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Modified by Jacob Eva (Liberated Embedded Systems) (c) 2025.
* Changes licensed under the GPL.
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "crc16.h"
#include <stdlib.h>
uint16_t crc16_compute(uint8_t const * p_data, uint16_t data_len)
{
uint16_t crc = 0xFFFF;
for (int i = 0; i < data_len; i++) {
crc = (crc >> 8 & 0x00FF) | (crc << 8 & 0xFF00);
crc = crc ^ p_data[i];
crc = crc ^ (crc & 0x00FF) >> 4;
crc = crc ^ (crc << 8) << 4;
crc = crc ^ ((crc & 0x00FF) << 4) << 1;
}
return crc;
}

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/**
* Copyright (c) 2015 - 2018, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Modified by Jacob Eva (Liberated Embedded Systems) (c) 2025.
* Changes licensed under the GPL.
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
/** @file
*
* @defgroup crc16 CRC16 compute
* @{
* @ingroup hci_transport
*
* @brief This module implements the CRC-16 calculation in the blocks.
*/
#ifndef CRC16_H__
#define CRC16_H__
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/**@brief Function for calculating CRC-16 in blocks.
*
* Feed each consecutive data block into this function, along with the current value of p_crc as
* returned by the previous call of this function. The first call of this function should pass NULL
* as the initial value of the crc in p_crc.
*
* @param[in] p_data The input data block for computation.
* @param[in] size The size of the input data block in bytes.
* @param[in] p_crc The previous calculated CRC-16 value or NULL if first call.
*
* @return The updated CRC-16 value, based on the input supplied.
*/
uint16_t crc16_compute(uint8_t const * p_data, uint16_t data_len);
#ifdef __cplusplus
}
#endif
#endif // CRC16_H__
/** @} */

673
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/**
* Copyright (c) 2018, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Modified by Jacob Eva (Liberated Embedded Systems) (c) 2025.
* Changes licensed under the GPL.
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <openssl/sha.h>
#include "dfu.h"
#include "dfu_serial.h"
#include "../../zip.h"
#include "jsmn.h"
#include "../../logging/log.h"
// maximum number of JSON tokens to process
#define JSON_TOKEN_NUM_MAX 30
// maximum number of DFU objects to process
#define DFU_OBJECT_NUM_MAX 3
typedef enum {
DFU_IMG_NIL = 0, //!< DFU image invalid
DFU_IMG_APP = 1, //!< DFU application image
DFU_IMG_BL = 2, //!< DFU bootloader image
DFU_IMG_SD = 3, //!< DFU SoftDevice image
DFU_IMG_SD_BL = 4 //!< DFU SoftDevice & bootloader image
} dfu_image_type_t;
typedef enum {
STR_UNDEFINED = 0,
STR_FILE_BIN = 1,
STR_FILE_DAT = 2
} dfu_json_str_t;
typedef struct {
jsmntype_t type; //!< Token type.
int size; //!< Number of child tokens.
char *str; //!< String value.
dfu_json_str_t str_type; //!< String usage type.
} jsmn_entity_t;
typedef struct {
dfu_image_type_t img_type; //!< DFU image type.
const jsmn_entity_t *p_pattern; //!< JSMN token pattern.
} dfu_image_jsmn_pattern;
typedef struct
{
dfu_image_type_t img_type; //!< DFU image type.
char *file_bin; //!< BIN file name.
char *file_dat; //!< DAT file name.
} dfu_json_object_t;
typedef struct
{
uart_drv_t *p_uart;
uint8_t *p_img_dat; //!< Image DAT pointer.
uint32_t n_dat_size; //!< Image DAT size.
uint8_t *p_img_bin; //!< Image BIN pointer.
uint32_t n_bin_size; //!< Image BIN size.
} dfu_img_param_t;
// JSON tokens
static jsmntok_t json_tokens[JSON_TOKEN_NUM_MAX];
// DFU objects
static dfu_json_object_t dfu_objects[DFU_OBJECT_NUM_MAX];
// JSMN token pattern for Manifest
static const jsmn_entity_t dfu_mft_pattern[] =
{
{ JSMN_OBJECT, 1, NULL, STR_UNDEFINED },
{ JSMN_STRING, 1, "manifest", STR_UNDEFINED },
{ JSMN_UNDEFINED, 0, NULL, STR_UNDEFINED }
};
// JSMN token pattern for 1 DFU image
static const jsmn_entity_t dfu_img_1_pattern[] =
{
{ JSMN_OBJECT, 2, NULL, STR_UNDEFINED },
{ JSMN_UNDEFINED, 0, NULL, STR_UNDEFINED }
};
// JSMN token pattern for 2 DFU images
static const jsmn_entity_t dfu_img_2_pattern[] =
{
{ JSMN_OBJECT, 3, NULL, STR_UNDEFINED },
{ JSMN_UNDEFINED, 0, NULL, STR_UNDEFINED }
};
// JSMN token pattern for DFU application
static const jsmn_entity_t dfu_app_pattern[] =
{
{ JSMN_STRING, 1, "application", STR_UNDEFINED },
{ JSMN_OBJECT, 3, NULL, STR_UNDEFINED },
{ JSMN_STRING, 1, "bin_file", STR_UNDEFINED },
{ JSMN_STRING, 0, NULL, STR_FILE_BIN },
{ JSMN_STRING, 1, "dat_file", STR_UNDEFINED },
{ JSMN_STRING, 0, NULL, STR_FILE_DAT },
{ JSMN_STRING, 1, "init_packet_data", STR_UNDEFINED },
{ JSMN_OBJECT, 5, NULL, STR_UNDEFINED },
{ JSMN_STRING, 1, "application_version", STR_UNDEFINED },
{ JSMN_PRIMITIVE, 0, NULL, STR_UNDEFINED },
{ JSMN_STRING, 1, "device_revision", STR_UNDEFINED },
{ JSMN_PRIMITIVE, 0, NULL, STR_UNDEFINED },
{ JSMN_STRING, 1, "device_type", STR_UNDEFINED },
{ JSMN_PRIMITIVE, 0, NULL, STR_UNDEFINED },
{ JSMN_STRING, 1, "firmware_crc16", STR_UNDEFINED },
{ JSMN_PRIMITIVE, 0, NULL, STR_UNDEFINED },
{ JSMN_STRING, 1, "softdevice_req", STR_UNDEFINED },
{ JSMN_ARRAY, 1, NULL, STR_UNDEFINED },
{ JSMN_PRIMITIVE, 0, NULL, STR_UNDEFINED },
{ JSMN_STRING, 1, "dfu_version", STR_UNDEFINED },
{ JSMN_PRIMITIVE, 0, NULL, STR_UNDEFINED },
{ JSMN_UNDEFINED, 0, NULL, STR_UNDEFINED }
};
// JSMN token pattern for DFU bootloader
static const jsmn_entity_t dfu_bl_pattern[] =
{
{ JSMN_STRING, 1, "bootloader", STR_UNDEFINED },
{ JSMN_OBJECT, 2, NULL, STR_UNDEFINED },
{ JSMN_STRING, 1, "bin_file", STR_UNDEFINED },
{ JSMN_STRING, 0, NULL, STR_FILE_BIN },
{ JSMN_STRING, 1, "dat_file", STR_UNDEFINED },
{ JSMN_STRING, 0, NULL, STR_FILE_DAT },
{ JSMN_UNDEFINED, 0, NULL, STR_UNDEFINED }
};
// JSMN token pattern for DFU SoftDevice
static const jsmn_entity_t dfu_sd_pattern[] =
{
{ JSMN_STRING, 1, "softdevice", STR_UNDEFINED },
{ JSMN_OBJECT, 2, NULL, STR_UNDEFINED },
{ JSMN_STRING, 1, "bin_file", STR_UNDEFINED },
{ JSMN_STRING, 0, NULL, STR_FILE_BIN },
{ JSMN_STRING, 1, "dat_file", STR_UNDEFINED },
{ JSMN_STRING, 0, NULL, STR_FILE_DAT },
{ JSMN_UNDEFINED, 0, NULL, STR_UNDEFINED }
};
// JSMN token pattern for DFU SoftDevice & bootloader
static const jsmn_entity_t dfu_sd_bl_pattern[] =
{
{ JSMN_STRING, 1, "softdevice_bootloader", STR_UNDEFINED },
{ JSMN_OBJECT, 3, NULL, STR_UNDEFINED },
{ JSMN_STRING, 1, "bin_file", STR_UNDEFINED },
{ JSMN_STRING, 0, NULL, STR_FILE_BIN },
{ JSMN_STRING, 1, "dat_file", STR_UNDEFINED },
{ JSMN_STRING, 0, NULL, STR_FILE_DAT },
{ JSMN_STRING, 1, "info_read_only_metadata", STR_UNDEFINED },
{ JSMN_OBJECT, 2, NULL, STR_UNDEFINED },
{ JSMN_STRING, 1, "bl_size", STR_UNDEFINED },
{ JSMN_PRIMITIVE, 0, NULL, STR_UNDEFINED },
{ JSMN_STRING, 1, "sd_size", STR_UNDEFINED },
{ JSMN_PRIMITIVE, 0, NULL, STR_UNDEFINED },
{ JSMN_UNDEFINED, 0, NULL, STR_UNDEFINED }
};
// JSMN token pattern table
static const dfu_image_jsmn_pattern dfu_pattern_tbl[] =
{
{ DFU_IMG_APP, dfu_app_pattern },
{ DFU_IMG_BL, dfu_bl_pattern },
{ DFU_IMG_SD, dfu_sd_pattern },
{ DFU_IMG_SD_BL, dfu_sd_bl_pattern },
{ DFU_IMG_NIL, NULL }
};
static void free_dfu_json_obj(dfu_json_object_t *p_dfu_obj);
// allocate memory to store a JSON string
static char *put_json_to_string(const uint8_t *p_data, int len)
{
char *p_str;
if (len >= 0)
p_str = (char *)malloc(len + 1);
else
p_str = NULL;
if (p_str != NULL)
{
memcpy(p_str, p_data, len);
*(p_str + len) = '\0';
}
return p_str;
}
// map a JSMN token to a DFU JSON pattern
static int map_jsmn_token_to_pattern(dfu_json_object_t *p_dfu_obj, const jsmn_entity_t *p_pattern, const jsmntok_t *p_tokens, int num_tokens, const uint8_t *p_data)
{
int i, j = 0;
jsmntype_t jsmn_type;
// compare the JSMN tokens one by one
for (i = 0; (jsmn_type = (p_pattern + i)->type) != JSMN_UNDEFINED; i++)
{
jsmntype_t comp_type = (p_tokens + i)->type;
uint16_t size1 = (p_pattern + i)->size;
uint16_t size2 = (p_tokens + i)->size;
if (i >= num_tokens ||
jsmn_type != (p_tokens + i)->type ||
(p_pattern + i)->size != (p_tokens + i)->size)
{
// type or size mismatch...
j = -1;
break;
}
if (jsmn_type == JSMN_STRING)
{
int len = (p_tokens + i)->end - (p_tokens + i)->start;
char *p_str = put_json_to_string(p_data + (p_tokens + i)->start, len);
if (p_str == NULL)
{
// cannot allocate memory...
j = -1;
break;
}
// check the pattern string
char *comp_string = (p_pattern +i)->str;
if ((p_pattern + i)->str != NULL && strcmp(p_str, (p_pattern + i)->str))
{
free(p_str);
// mismatch...
j = -1;
break;
}
// store string target, if any
switch ((p_pattern + i)->str_type)
{
case STR_FILE_DAT:
if (p_dfu_obj != NULL)
p_dfu_obj->file_dat = p_str;
break;
case STR_FILE_BIN:
if (p_dfu_obj != NULL)
p_dfu_obj->file_bin = p_str;
break;
default:
free(p_str);
break;
}
}
}
if (j < 0)
{
i = j;
if (p_dfu_obj != NULL)
free_dfu_json_obj(p_dfu_obj);
}
return i;
}
// free allocated strings
static void free_dfu_json_obj(dfu_json_object_t *p_dfu_obj)
{
if (p_dfu_obj->file_dat != NULL)
{
free(p_dfu_obj->file_dat);
p_dfu_obj->file_dat = NULL;
}
if (p_dfu_obj->file_bin != NULL)
{
free(p_dfu_obj->file_bin);
p_dfu_obj->file_bin = NULL;
}
}
static int dfu_send_image(dfu_img_param_t *p_dfu_img, struct RNode* rn)
{
int err_code;
err_code = dfu_serial_send_start_dfu(p_dfu_img->p_uart, 4, 0, 0, p_dfu_img->n_bin_size); // todo remove hardcode to mode 4
if (!err_code)
{
err_code = dfu_serial_send_init(p_dfu_img->p_uart, p_dfu_img->p_img_dat, p_dfu_img->n_dat_size);
}
if (!err_code)
{
err_code = dfu_serial_send_firmware(p_dfu_img->p_uart, rn, p_dfu_img->p_img_bin, p_dfu_img->n_bin_size);
}
return err_code;
}
static int dfu_send_object(uart_drv_t *p_uart, struct RNode* rn, dfu_json_object_t *p_dfu_obj, struct zip_t *p_zip_pkg)
{
int err_code = 0;
uint8_t *buf_dat = NULL;
size_t buf_dat_size;
uint8_t *buf_bin = NULL;
size_t buf_bin_size;
dfu_img_param_t dfu_img;
if (zip_entry_open(p_zip_pkg, p_dfu_obj->file_dat))
{
log_error("Cannot open firmware package DAT file!");
err_code = 1;
}
else
{
if (zip_entry_read(p_zip_pkg, (void **)&buf_dat, &buf_dat_size))
{
log_error("Cannot read firmware package DAT file!");
err_code = 1;
}
zip_entry_close(p_zip_pkg);
}
if (!err_code)
{
if (zip_entry_open(p_zip_pkg, p_dfu_obj->file_bin))
{
log_error("Cannot open firmware package BIN file!");
err_code = 1;
}
else
{
if (zip_entry_read(p_zip_pkg, (void **)&buf_bin, &buf_bin_size))
{
log_error("Cannot read firmware package BIN file!");
err_code = 1;
}
zip_entry_close(p_zip_pkg);
}
}
if (!err_code)
{
dfu_img.p_uart = p_uart;
dfu_img.p_img_dat = buf_dat;
dfu_img.n_dat_size = buf_dat_size;
dfu_img.p_img_bin = buf_bin;
dfu_img.n_bin_size = buf_bin_size;
err_code = dfu_send_image(&dfu_img, rn);
}
if (buf_dat != NULL)
free(buf_dat);
if (buf_bin != NULL)
free(buf_bin);
return err_code;
}
static dfu_json_object_t *find_dfu_object(dfu_json_object_t *p_dfu_obj, int num_obj, dfu_image_type_t img_type)
{
dfu_json_object_t *p_obj = NULL;
int i;
for (i = 0; i < num_obj; i++)
{
if ((p_dfu_obj + i)->img_type == img_type)
{
p_obj = p_dfu_obj + i;
break;
}
}
return p_obj;
}
int dfu_send_package(dfu_param_t *p_dfu, struct RNode* rn, uint8_t* hash)
{
int err_code = 0;
struct zip_t *zip_pkg;
uint8_t *buf_json = NULL;
size_t bufsize;
jsmn_parser parser;
int num_tokens;
int num_images, img_n = 0;
dfu_json_object_t *p_dfu_object;
int i, n;
zip_pkg = zip_open(p_dfu->p_pkg_file, 0, 'r');
if (zip_pkg == NULL)
{
log_error("Cannot open ZIP firmware package file!");
err_code = 1;
}
else
{
if (zip_entry_open(zip_pkg, "manifest.json"))
{
log_error("Cannot open firmware package manifest file!");
err_code = 1;
}
else
{
if (zip_entry_read(zip_pkg, (void **)&buf_json, &bufsize))
{
log_error("Cannot read firmware package manifest file!");
err_code = 1;
}
else
{
zip_entry_close(zip_pkg);
}
}
}
if (!err_code)
{
jsmn_init(&parser);
num_tokens = jsmn_parse(&parser, (char *)buf_json, bufsize, json_tokens, JSON_TOKEN_NUM_MAX);
if (num_tokens < 0)
{
log_error("Cannot parse firmware package manifest JSON (%d)!", num_tokens);
err_code = 1;
}
}
for (i = 0; i < DFU_OBJECT_NUM_MAX; i++)
{
dfu_objects[i].file_bin = NULL;
dfu_objects[i].file_dat = NULL;
}
if (!err_code)
{
// check that JSON starts with a manifest object
i = map_jsmn_token_to_pattern(NULL, dfu_mft_pattern, json_tokens, num_tokens, buf_json);
if (i < 0)
{
log_error("Cannot get JSON manifest object from firmware package!");
err_code = 1;
}
n = i;
if (!err_code)
{
// check whether there are 1 or 2 DFU images
i = map_jsmn_token_to_pattern(NULL, dfu_img_1_pattern, json_tokens + n, num_tokens - n, buf_json);
if (i > 0)
{
num_images = 1;
}
else
{
i = map_jsmn_token_to_pattern(NULL, dfu_img_2_pattern, json_tokens + n, num_tokens - n, buf_json);
if (i > 0)
{
num_images = 2;
}
}
if (i <= 0)
{
log_error("Cannot get number of DFU images from manifest!");
err_code = 1;
}
}
n += i;
while (!err_code && n < num_tokens)
{
int t;
if (img_n >= DFU_OBJECT_NUM_MAX)
{
log_error("Too many DFU images in the manifest!");
err_code = 1;
break;
}
// determine the DFU image type
for (t = 0; dfu_pattern_tbl[t].img_type != DFU_IMG_NIL; t++)
{
i = map_jsmn_token_to_pattern(dfu_objects + img_n, dfu_pattern_tbl[t].p_pattern, json_tokens + n, num_tokens - n, buf_json);
if (i > 0)
{
dfu_objects[img_n].img_type = dfu_pattern_tbl[t].img_type;
break;
}
}
if (i <= 0)
{
log_error("Cannot find JSON DFU image object in manifest!");
err_code = 1;
break;
}
else
{
n += i;
img_n++;
}
}
if (!err_code && (n != num_tokens || img_n != num_images))
{
log_error("Incoherent JSON object structure detected in manifest!");
err_code = 1;
}
}
// todo, redo this section to support softdevice & bootloader flashing
if (!err_code)
{
// send SoftDevice & bootloader image, if any
//p_dfu_object = find_dfu_object(dfu_objects, num_images, DFU_IMG_SD_BL);
//if (p_dfu_object != NULL)
//{
// //logger_info_1("Sending SoftDevice+Bootloader image.");
// //err_code = dfu_send_object(p_dfu->p_uart, p_dfu_object, zip_pkg);
// //if (!err_code && num_images > 1)
// // err_code = delay_connect();
//}
}
if (!err_code)
{
// send SoftDevice image, if any
//p_dfu_object = find_dfu_object(dfu_objects, num_images, DFU_IMG_SD);
//if (p_dfu_object != NULL)
//{
// //logger_info_1("Sending SoftDevice image.");
// // err_code = dfu_send_object(p_dfu->p_uart, p_dfu_object, zip_pkg);
// // if (!err_code && num_images > 1)
// // err_code = delay_connect();
//}
}
if (!err_code)
{
// send bootloader image, if any
//p_dfu_object = find_dfu_object(dfu_objects, num_images, DFU_IMG_BL);
//if (p_dfu_object != NULL)
//{
// //logger_info_1("Sending Bootloader image.");
// // err_code = dfu_send_object(p_dfu->p_uart, p_dfu_object, zip_pkg);
// // if (!err_code && num_images > 1)
// // err_code = delay_connect();
//}
}
if (!err_code)
{
// send application image, if any
p_dfu_object = find_dfu_object(dfu_objects, num_images, DFU_IMG_APP);
if (p_dfu_object != NULL)
{
uint8_t *buf_bin = NULL;
size_t buf_bin_size;
log_info("Sending Application image to RNode...");
err_code = dfu_send_object(p_dfu->p_uart, rn, p_dfu_object, zip_pkg);
if (zip_entry_open(zip_pkg, p_dfu_object->file_bin))
{
log_error("Cannot open firmware package BIN file!");
err_code = 1;
}
else
{
if (zip_entry_read(zip_pkg, (void **)&buf_bin, &buf_bin_size))
{
log_error("Cannot read firmware package BIN file!");
err_code = 1;
}
zip_entry_close(zip_pkg);
}
// Set firmware hash
SHA256(buf_bin, buf_bin_size, hash);
}
}
for (i = 0; i < DFU_OBJECT_NUM_MAX; i++)
free_dfu_json_obj(dfu_objects + i);
if (buf_json != NULL)
free(buf_json);
if (zip_pkg != NULL)
zip_close(zip_pkg);
return err_code;
}

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/**
* Copyright (c) 2018, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Modified by Jacob Eva (Liberated Embedded Systems) (c) 2025.
* Changes licensed under the GPL.
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#ifndef _INC_DFU
#define _INC_DFU
#include "uart_drv.h"
#include "uart_slip.h"
#include "../../../librnode.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
typedef struct
{
uart_drv_t *p_uart;
char *p_pkg_file;
} dfu_param_t;
int dfu_send_package(dfu_param_t *p_dfu, struct RNode* rn, uint8_t* hash);
#ifdef __cplusplus
} /* ... extern "C" */
#endif /* __cplusplus */
#endif // _INC_DFU

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/**
* Copyright (c) 2018, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Modified by Jacob Eva (Liberated Embedded Systems) (c) 2025.
* Changes licensed under the GPL.
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <sys/param.h>
#include "dfu_serial.h"
#include "hci.h"
#include "../../util.h"
#include "../../logging/log.h"
// SLIP data log buffer size
#define MAX_BUFF_SIZE 1024
#define DFU_INIT_PACKET 1
#define DFU_START_PACKET 3
#define DFU_DATA_PACKET 4
#define DFU_STOP_DATA_PACKET 5
#define DFU_PACKET_MAX_SIZE 512
#define FLASH_PAGE_SIZE 4096
#define FLASH_WORD_WRITE_TIME 0.000100
#define FLASH_PAGE_WRITE_TIME (FLASH_PAGE_SIZE / 4) * FLASH_WORD_WRITE_TIME
#define FLASH_PAGE_ERASE_TIME 0.0897
#define FLASH_MAX_FW_SIZE 300000
#define DAT_FILE_SIZE 14
#define LOG_BUF_SIZE 2048
static uint8_t send_data[UART_SLIP_SIZE_MAX];
static uint8_t receive_data[UART_SLIP_SIZE_MAX];
char logger_buf[LOG_BUF_SIZE];
void (*progress_cb)(uint8_t) = NULL;
static uint32_t get_uint32_le(const uint8_t *p_data)
{
uint32_t data;
data = ((uint32_t)*(p_data + 0) << 0);
data += ((uint32_t)*(p_data + 1) << 8);
data += ((uint32_t)*(p_data + 2) << 16);
data += ((uint32_t)*(p_data + 3) << 24);
return data;
}
static void put_uint32_le(uint8_t *p_data, uint32_t data)
{
*(p_data + 0) = (uint8_t)(data >> 0);
*(p_data + 1) = (uint8_t)(data >> 8);
*(p_data + 2) = (uint8_t)(data >> 16);
*(p_data + 3) = (uint8_t)(data >> 24);
}
static void uart_data_to_buff(const uint8_t *pData, uint32_t nSize)
{
uint32_t n;
int len, pos;
pos = 0;
if (nSize*3 <= sizeof(logger_buf)) {
for (n = 0; n < nSize; n++)
{
sprintf(logger_buf+n*3, "%02x ", *(pData + n));
}
}
}
static int dfu_serial_send(uart_drv_t *p_uart, const uint8_t *pData, uint32_t nSize)
{
uart_data_to_buff(pData, nSize);
log_trace("SLIP: --> [%s]", logger_buf);
return uart_drv_send(p_uart, pData, nSize);
}
//static int dfu_serial_get_rsp(uart_drv_t *p_uart, nrf_dfu_op_t oper, uint32_t *p_data_cnt)
//{
// int err_code;
//
// err_code = uart_slip_receive(p_uart, receive_data, sizeof(receive_data), p_data_cnt);
//
// if (!err_code)
// {
// //int info_lvl = //logger_get_info_level();
//
// //if (info_lvl >= LOGGER_INFO_LVL_3)
// //{
// // uart_data_to_buff(receive_data, *p_data_cnt);
// // //logger_info_3("SLIP: <-- [%s]", //logger_buf);
// //}
//
// if (*p_data_cnt >= 3 &&
// receive_data[0] == NRF_DFU_OP_RESPONSE &&
// receive_data[1] == oper)
// {
// if (receive_data[2] != NRF_DFU_RES_CODE_SUCCESS)
// {
// uint16_t rsp_error = receive_data[2];
//
// // get 2-byte error code, if applicable
// if (*p_data_cnt >= 4)
// rsp_error = (rsp_error << 8) + receive_data[3];
//
// //logger_error("Bad result code (0x%X)!", rsp_error);
//
// err_code = 1;
// }
// }
// else
// {
// //logger_error("Invalid response!");
//
// err_code = 1;
// }
// }
//
// return err_code;
//}
static void dfu_serial_u32_to_bytes(uint32_t val, uint8_t* array, uint16_t offset) {
array[offset] = val & 0x000000ff;
array[offset+1] = (val & 0x0000ff00) >> 8;
array[offset+2] = (val & 0x00ff0000) >> 16;
array[offset+3] = (val & 0xff000000) >> 24;
}
// Waits the time necessary for the MCU to erase its flash before we begin sending the new image
int dfu_serial_wait_for_erase(uint32_t total_img_size) {
return sleep_ms(MAX(0.5, (total_img_size / FLASH_PAGE_SIZE) * FLASH_PAGE_ERASE_TIME));
}
int dfu_serial_send_start_dfu(uart_drv_t *p_uart, uint8_t mode, uint32_t softdevice_size, uint32_t bootloader_size, uint32_t application_size) {
int error = 0;
uint8_t frame[5*4] = {0};
uint8_t hci_frame[(5*4)*2];
dfu_serial_u32_to_bytes(DFU_START_PACKET, frame, 0);
dfu_serial_u32_to_bytes(mode, frame, 4);
dfu_serial_u32_to_bytes(softdevice_size, frame, 8);
dfu_serial_u32_to_bytes(bootloader_size, frame, 12);
dfu_serial_u32_to_bytes(application_size, frame, 16);
uint32_t size = encode_hci(frame, 5*4, hci_frame);
error = dfu_serial_wait_for_erase(softdevice_size + bootloader_size + application_size);
if (!error) {
error = dfu_serial_send(p_uart, hci_frame, size);
}
return error;
}
int dfu_serial_send_init(uart_drv_t *p_uart, const uint8_t* dat_file, uint32_t dat_size) {
if (dat_size > DAT_FILE_SIZE) {
log_error("Firmware DAT file is invalid! Is your ZIP file corrupt?");
return -1;
}
uint8_t frame[6+DAT_FILE_SIZE] = {0};
uint8_t hci_frame[(6+DAT_FILE_SIZE) * 2];
dfu_serial_u32_to_bytes(DFU_INIT_PACKET, frame, 0);
memcpy(frame+4, dat_file, DAT_FILE_SIZE);
uint32_t size = encode_hci(frame, 6+DAT_FILE_SIZE, hci_frame);
return dfu_serial_send(p_uart, hci_frame, size);
}
// todo, may allow for firmware extraction from board?
//static int dfu_serial_try_to_recover_fw(uart_drv_t *p_uart, const uint8_t *p_data, uint32_t data_size,
// nrf_dfu_response_select_t *p_rsp_recover,
// const nrf_dfu_response_select_t *p_rsp_select)
//{
// int err_code = 0;
// uint32_t max_size, stp_size;
// uint32_t pos_start, len_remain;
// uint32_t crc_32 = 0;
// int obj_exec = 1;
//
// *p_rsp_recover = *p_rsp_select;
//
// pos_start = p_rsp_recover->offset;
//
// if (pos_start > data_size)
// {
// //logger_error("Invalid firmware offset reported!");
//
// err_code = 1;
// }
// else if (pos_start > 0)
// {
// max_size = p_rsp_select->max_size;
// //crc_32 = crc32_compute(p_data, pos_start, NULL);
// len_remain = pos_start % max_size;
//
// if (p_rsp_select->crc != crc_32)
// {
// pos_start -= ((len_remain > 0) ? len_remain : max_size);
// p_rsp_recover->offset = pos_start;
//
// return err_code;
// }
//
// if (len_remain > 0)
// {
// stp_size = max_size - len_remain;
//
// err_code = dfu_serial_stream_data_crc(p_uart, p_data + pos_start, stp_size, pos_start, &crc_32);
// if (!err_code)
// {
// pos_start += stp_size;
// }
// else if (err_code == 2)
// {
// err_code = 0;
//
// pos_start -= len_remain;
//
// obj_exec = 0;
// }
//
// p_rsp_recover->offset = pos_start;
// }
//
// if (!err_code && obj_exec)
// {
// err_code = dfu_serial_execute_obj(p_uart);
// }
// }
//
// return err_code;
//}
int dfu_serial_send_firmware(uart_drv_t *p_uart, struct RNode* rn, const uint8_t *p_data, uint32_t data_size)
{
uint8_t frame[DFU_PACKET_MAX_SIZE + 4];
uint8_t hci_frame[(DFU_PACKET_MAX_SIZE + 4) * 2];
int err_code = 0;
//logger_info_1("Sending firmware file...");
if (p_data == NULL || !data_size)
{
log_error("Payload data is invalid! Is your ZIP file corrupt?");
err_code = 1;
}
if (!err_code) {
uint16_t len;
uint32_t hci_len;
for (int i = 0; i < data_size; i = i + DFU_PACKET_MAX_SIZE) {
dfu_serial_u32_to_bytes(DFU_DATA_PACKET, frame, 0);
if (data_size - i > DFU_PACKET_MAX_SIZE) {
len = DFU_PACKET_MAX_SIZE;
} else {
len = data_size - i;
}
memcpy(frame+4, p_data+i, len);
hci_len = encode_hci(frame, len+4, hci_frame);
err_code = dfu_serial_send(p_uart, hci_frame, hci_len);
if (err_code) {
log_error("Sending firmware to RNode failed! Is the device still connected?");
break;
}
// Trigger callback and provide percentage of packets sent
if (rn->prog_cb != NULL) {
(*rn->prog_cb)(i / data_size * 100);
}
// nrf52 is erasing and writing to flash
if (i % 8 == 0) {
err_code = sleep_ms(FLASH_PAGE_WRITE_TIME);
if (err_code) {
log_error("Timing failed during flash, please try flashing again!");
break;
}
}
}
if (!err_code) {
err_code = sleep_ms(FLASH_PAGE_WRITE_TIME);
if (err_code) {
log_error("Timing failed during flash, please try flashing again!");
}
dfu_serial_u32_to_bytes(DFU_STOP_DATA_PACKET, frame, 0);
hci_len = encode_hci(frame, 4, hci_frame);
err_code = dfu_serial_send(p_uart, hci_frame, hci_len);
}
}
return err_code;
}

78
src/libs/flashers/nrf/dfu_serial.h Normal file
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/**
* Copyright (c) 2018, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Modified by Jacob Eva (Liberated Embedded Systems) (c) 2025.
* Changes licensed under the GPL.
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#ifndef _INC_DFU_SERIAL
#define _INC_DFU_SERIAL
#include "uart_drv.h"
#include "uart_slip.h"
#include "../../../librnode.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
int dfu_serial_send_start_dfu(uart_drv_t *p_uart, uint8_t mode, uint32_t softdevice_size, uint32_t bootloader_size, uint32_t application_size);
int dfu_serial_send_init(uart_drv_t *p_uart, const uint8_t *p_data, uint32_t data_size);
int dfu_serial_send_firmware(uart_drv_t *p_uart, struct RNode* rn, const uint8_t *p_data, uint32_t data_size);
#ifdef __cplusplus
} /* ... extern "C" */
#endif /* __cplusplus */
#endif // _INC_DFU_SERIAL

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/* Copyright (c) 2025 / Jacob Eva (Liberated Embedded Systems)
* This file provides some helper functions for encapsulating frames into HCI
* commands
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "hci.h"
#include "../../slip_enc.h"
#include <string.h>
#include "crc16.h"
uint8_t hci_seq = 0;
uint32_t encode_hci(uint8_t* raw_data, uint32_t raw_data_len, uint8_t* encoded_data) {
uint32_t encoded_data_size;
uint8_t temp_data[HCI_TEMP_BUF_SIZE];
hci_seq = (hci_seq + 1) % 8;
slip_header(hci_seq, true, true, HCI_PACKET_TYPE, raw_data_len, temp_data);
// Copy in raw data
memcpy(temp_data + SLIP_HEADER_LEN, raw_data, raw_data_len);
uint16_t crc = crc16_compute(temp_data, raw_data_len + SLIP_HEADER_LEN);
temp_data[SLIP_HEADER_LEN + raw_data_len] = crc & 0xFF;
temp_data[SLIP_HEADER_LEN + raw_data_len + 1] = (crc & 0xFF00) >> 8;
encode_slip(encoded_data, &encoded_data_size, temp_data, raw_data_len + SLIP_HEADER_LEN + CRC_SIZE, true);
return encoded_data_size;
}

27
src/libs/flashers/nrf/hci.h Normal file
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/* Copyright (c) 2025 / Jacob Eva (Liberated Embedded Systems)
* This file provides some helper functions for encapsulating frames into HCI
* commands
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef __HCI_H
#define __HCI_H
#include <stdint.h>
#define HCI_PACKET_TYPE 14
#define CRC_SIZE 16 / 8
#define HCI_TEMP_BUF_SIZE 2048
uint32_t encode_hci(uint8_t* raw_data, uint32_t raw_data_len, uint8_t* encoded_data);
#endif

318
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/* Copyright (c) / Jimmy Wong
* Originally distributed under the MIT license
*/
#include "jsmn.h"
/**
* Allocates a fresh unused token from the token pull.
*/
static jsmntok_t *jsmn_alloc_token(jsmn_parser *parser,
jsmntok_t *tokens, size_t num_tokens) {
jsmntok_t *tok;
if (parser->toknext >= num_tokens) {
return NULL;
}
tok = &tokens[parser->toknext++];
tok->start = tok->end = -1;
tok->size = 0;
#ifdef JSMN_PARENT_LINKS
tok->parent = -1;
#endif
return tok;
}
/**
* Fills token type and boundaries.
*/
static void jsmn_fill_token(jsmntok_t *token, jsmntype_t type,
int start, int end) {
token->type = type;
token->start = start;
token->end = end;
token->size = 0;
}
/**
* Fills next available token with JSON primitive.
*/
static int jsmn_parse_primitive(jsmn_parser *parser, const char *js,
size_t len, jsmntok_t *tokens, size_t num_tokens) {
jsmntok_t *token;
int start;
start = parser->pos;
for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
switch (js[parser->pos]) {
#ifndef JSMN_STRICT
/* In strict mode primitive must be followed by "," or "}" or "]" */
case ':':
#endif
case '\t' : case '\r' : case '\n' : case ' ' :
case ',' : case ']' : case '}' :
goto found;
}
if (js[parser->pos] < 32 || js[parser->pos] >= 127) {
parser->pos = start;
return JSMN_ERROR_INVAL;
}
}
#ifdef JSMN_STRICT
/* In strict mode primitive must be followed by a comma/object/array */
parser->pos = start;
return JSMN_ERROR_PART;
#endif
found:
if (tokens == NULL) {
parser->pos--;
return 0;
}
token = jsmn_alloc_token(parser, tokens, num_tokens);
if (token == NULL) {
parser->pos = start;
return JSMN_ERROR_NOMEM;
}
jsmn_fill_token(token, JSMN_PRIMITIVE, start, parser->pos);
#ifdef JSMN_PARENT_LINKS
token->parent = parser->toksuper;
#endif
parser->pos--;
return 0;
}
/**
* Fills next token with JSON string.
*/
static int jsmn_parse_string(jsmn_parser *parser, const char *js,
size_t len, jsmntok_t *tokens, size_t num_tokens) {
jsmntok_t *token;
int start = parser->pos;
parser->pos++;
/* Skip starting quote */
for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
char c = js[parser->pos];
/* Quote: end of string */
if (c == '\"') {
if (tokens == NULL) {
return 0;
}
token = jsmn_alloc_token(parser, tokens, num_tokens);
if (token == NULL) {
parser->pos = start;
return JSMN_ERROR_NOMEM;
}
jsmn_fill_token(token, JSMN_STRING, start+1, parser->pos);
#ifdef JSMN_PARENT_LINKS
token->parent = parser->toksuper;
#endif
return 0;
}
/* Backslash: Quoted symbol expected */
if (c == '\\' && parser->pos + 1 < len) {
int i;
parser->pos++;
switch (js[parser->pos]) {
/* Allowed escaped symbols */
case '\"': case '/' : case '\\' : case 'b' :
case 'f' : case 'r' : case 'n' : case 't' :
break;
/* Allows escaped symbol \uXXXX */
case 'u':
parser->pos++;
for(i = 0; i < 4 && parser->pos < len && js[parser->pos] != '\0'; i++) {
/* If it isn't a hex character we have an error */
if(!((js[parser->pos] >= 48 && js[parser->pos] <= 57) || /* 0-9 */
(js[parser->pos] >= 65 && js[parser->pos] <= 70) || /* A-F */
(js[parser->pos] >= 97 && js[parser->pos] <= 102))) { /* a-f */
parser->pos = start;
return JSMN_ERROR_INVAL;
}
parser->pos++;
}
parser->pos--;
break;
/* Unexpected symbol */
default:
parser->pos = start;
return JSMN_ERROR_INVAL;
}
}
}
parser->pos = start;
return JSMN_ERROR_PART;
}
/**
* Parse JSON string and fill tokens.
*/
int jsmn_parse(jsmn_parser *parser, const char *js, size_t len,
jsmntok_t *tokens, unsigned int num_tokens) {
int r;
int i;
jsmntok_t *token;
int count = parser->toknext;
for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
char c;
jsmntype_t type;
c = js[parser->pos];
switch (c) {
case '{': case '[':
count++;
if (tokens == NULL) {
break;
}
token = jsmn_alloc_token(parser, tokens, num_tokens);
if (token == NULL)
return JSMN_ERROR_NOMEM;
if (parser->toksuper != -1) {
tokens[parser->toksuper].size++;
#ifdef JSMN_PARENT_LINKS
token->parent = parser->toksuper;
#endif
}
token->type = (c == '{' ? JSMN_OBJECT : JSMN_ARRAY);
token->start = parser->pos;
parser->toksuper = parser->toknext - 1;
break;
case '}': case ']':
if (tokens == NULL)
break;
type = (c == '}' ? JSMN_OBJECT : JSMN_ARRAY);
#ifdef JSMN_PARENT_LINKS
if (parser->toknext < 1) {
return JSMN_ERROR_INVAL;
}
token = &tokens[parser->toknext - 1];
for (;;) {
if (token->start != -1 && token->end == -1) {
if (token->type != type) {
return JSMN_ERROR_INVAL;
}
token->end = parser->pos + 1;
parser->toksuper = token->parent;
break;
}
if (token->parent == -1) {
if(token->type != type || parser->toksuper == -1) {
return JSMN_ERROR_INVAL;
}
break;
}
token = &tokens[token->parent];
}
#else
for (i = parser->toknext - 1; i >= 0; i--) {
token = &tokens[i];
if (token->start != -1 && token->end == -1) {
if (token->type != type) {
return JSMN_ERROR_INVAL;
}
parser->toksuper = -1;
token->end = parser->pos + 1;
break;
}
}
/* Error if unmatched closing bracket */
if (i == -1) return JSMN_ERROR_INVAL;
for (; i >= 0; i--) {
token = &tokens[i];
if (token->start != -1 && token->end == -1) {
parser->toksuper = i;
break;
}
}
#endif
break;
case '\"':
r = jsmn_parse_string(parser, js, len, tokens, num_tokens);
if (r < 0) return r;
count++;
if (parser->toksuper != -1 && tokens != NULL)
tokens[parser->toksuper].size++;
break;
case '\t' : case '\r' : case '\n' : case ' ':
break;
case ':':
parser->toksuper = parser->toknext - 1;
break;
case ',':
if (tokens != NULL && parser->toksuper != -1 &&
tokens[parser->toksuper].type != JSMN_ARRAY &&
tokens[parser->toksuper].type != JSMN_OBJECT) {
#ifdef JSMN_PARENT_LINKS
parser->toksuper = tokens[parser->toksuper].parent;
#else
for (i = parser->toknext - 1; i >= 0; i--) {
if (tokens[i].type == JSMN_ARRAY || tokens[i].type == JSMN_OBJECT) {
if (tokens[i].start != -1 && tokens[i].end == -1) {
parser->toksuper = i;
break;
}
}
}
#endif
}
break;
#ifdef JSMN_STRICT
/* In strict mode primitives are: numbers and booleans */
case '-': case '0': case '1' : case '2': case '3' : case '4':
case '5': case '6': case '7' : case '8': case '9':
case 't': case 'f': case 'n' :
/* And they must not be keys of the object */
if (tokens != NULL && parser->toksuper != -1) {
jsmntok_t *t = &tokens[parser->toksuper];
if (t->type == JSMN_OBJECT ||
(t->type == JSMN_STRING && t->size != 0)) {
return JSMN_ERROR_INVAL;
}
}
#else
/* In non-strict mode every unquoted value is a primitive */
default:
#endif
r = jsmn_parse_primitive(parser, js, len, tokens, num_tokens);
if (r < 0) return r;
count++;
if (parser->toksuper != -1 && tokens != NULL)
tokens[parser->toksuper].size++;
break;
#ifdef JSMN_STRICT
/* Unexpected char in strict mode */
default:
return JSMN_ERROR_INVAL;
#endif
}
}
if (tokens != NULL) {
for (i = parser->toknext - 1; i >= 0; i--) {
/* Unmatched opened object or array */
if (tokens[i].start != -1 && tokens[i].end == -1) {
return JSMN_ERROR_PART;
}
}
}
return count;
}
/**
* Creates a new parser based over a given buffer with an array of tokens
* available.
*/
void jsmn_init(jsmn_parser *parser) {
parser->pos = 0;
parser->toknext = 0;
parser->toksuper = -1;
}

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/* Copyright (c) / Jimmy Wong
* Originally distributed under the MIT license
*/
#ifndef __JSMN_H_
#define __JSMN_H_
#include <stddef.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* JSON type identifier. Basic types are:
* o Object
* o Array
* o String
* o Other primitive: number, boolean (true/false) or null
*/
typedef enum {
JSMN_UNDEFINED = 0,
JSMN_OBJECT = 1,
JSMN_ARRAY = 2,
JSMN_STRING = 3,
JSMN_PRIMITIVE = 4
} jsmntype_t;
enum jsmnerr {
/* Not enough tokens were provided */
JSMN_ERROR_NOMEM = -1,
/* Invalid character inside JSON string */
JSMN_ERROR_INVAL = -2,
/* The string is not a full JSON packet, more bytes expected */
JSMN_ERROR_PART = -3
};
/**
* JSON token description.
* type type (object, array, string etc.)
* start start position in JSON data string
* end end position in JSON data string
*/
typedef struct {
jsmntype_t type;
int start;
int end;
int size;
#ifdef JSMN_PARENT_LINKS
int parent;
#endif
} jsmntok_t;
/**
* JSON parser. Contains an array of token blocks available. Also stores
* the string being parsed now and current position in that string
*/
typedef struct {
unsigned int pos; /* offset in the JSON string */
unsigned int toknext; /* next token to allocate */
int toksuper; /* superior token node, e.g parent object or array */
} jsmn_parser;
/**
* Create JSON parser over an array of tokens
*/
void jsmn_init(jsmn_parser *parser);
/**
* Run JSON parser. It parses a JSON data string into and array of tokens, each describing
* a single JSON object.
*/
int jsmn_parse(jsmn_parser *parser, const char *js, size_t len,
jsmntok_t *tokens, unsigned int num_tokens);
#ifdef __cplusplus
}
#endif
#endif /* __JSMN_H_ */

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/**
* Copyright (c) 2018, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Modified by Jacob Eva (Liberated Embedded Systems) (c) 2025.
* Changes licensed under the GPL.
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#ifndef _INC_UART_DRV
#define _INC_UART_DRV
#include <stdint.h>
#include <stdbool.h>
#ifdef WIN32
#include <windows.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
typedef struct {
const char *p_PortName;
#ifdef WIN32
HANDLE portHandle;
#else
int tty_fd;
#endif
} uart_drv_t;
int uart_drv_open(uart_drv_t *p_uart, bool touch);
int uart_drv_close(uart_drv_t *p_uart);
int uart_drv_send(uart_drv_t *p_uart, const uint8_t *pData, uint32_t nSize);
int uart_drv_receive(uart_drv_t *p_uart, uint8_t *pData, uint32_t nSize, uint32_t *pSize);
#ifdef __cplusplus
} /* ... extern "C" */
#endif /* __cplusplus */
#endif // _INC_UART_DRV

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/**
* Copyright (c) 2018, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Modified by Jacob Eva (Liberated Embedded Systems) (c) 2025.
* Changes licensed under the GPL.
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <unistd.h>
#include <fcntl.h>
#include <termios.h>
#include <string.h>
#include <time.h>
#include "uart_drv.h"
#include "../../util.h"
#include "../../logging/log.h"
#define SERIAL_WAIT_TIME 100 // ms
#define TOUCH_RESET_WAIT_TIME 1500 // ms
#define NSEC_EXPONENT 1000000
int uart_drv_open(uart_drv_t *p_uart, bool touch)
{
int err_code = 0;
int fd = -1;
char tty_path[200];
struct termios options;
strcpy(tty_path, p_uart->p_PortName);
//if (strlen(tty_name) <= 14)
// strcat(tty_path, tty_name);
//else
//{
// log_error("Invalid access port for RNode!");
// err_code = 1;
//}
if (!err_code)
{
fd = open(tty_path, O_RDWR | O_NOCTTY);
if (fd < 0)
{
log_error("Cannot open RNode port! Is the RNode connected?");
err_code = 1;
}
}
if (!err_code)
{
tcgetattr(fd, &options);
if (touch) {
log_debug("Touching RNode port.");
// 1200 bps
cfsetispeed(&options, B1200);
cfsetospeed(&options, B1200);
} else {
// 115200 bps
cfsetispeed(&options, B115200);
cfsetospeed(&options, B115200);
}
if (tcsetattr(fd, TCSANOW, &options))
{
log_error("Cannot set RNode port options!");
err_code = 1;
}
}
if (!err_code)
{
if (tcflush(fd, TCIFLUSH))
{
log_error("Cannot flush RNode port reception buffer!");
err_code = 1;
}
}
if (err_code && fd >= 0)
{
p_uart->tty_fd = fd;
uart_drv_close(p_uart);
fd = -1;
}
// Opening and closing serial port once is necessary to enter DFU mode
if (touch) {
sleep_ms(SERIAL_WAIT_TIME);
close(fd);
// Wait, then open it again
sleep_ms(TOUCH_RESET_WAIT_TIME);
fd = open(tty_path, O_RDWR | O_NOCTTY);
// 115200 bps
cfsetispeed(&options, B115200);
cfsetospeed(&options, B115200);
log_debug("Opened RNode port after touch.");
}
// 8N1
options.c_cflag &= ~PARENB;
options.c_cflag &= ~CSTOPB;
options.c_cflag &= ~CSIZE;
options.c_cflag |= CS8;
// ignore DCD line
options.c_cflag |= (CLOCAL | CREAD);
// disable RTS/CTS handshake
options.c_cflag &= CRTSCTS;
// disable XON/XOFF handshake
options.c_iflag &= ~(IXON | IXOFF | IXANY);
// disable input mapping options
options.c_iflag &= ~(ISTRIP | INLCR | IGNCR | ICRNL | IUCLC);
// select RAW input
options.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);
// select RAW output
options.c_oflag &= ~OPOST;
// disable output mapping options
options.c_oflag &= ~(OLCUC | ONLCR | OCRNL | ONOCR | ONLRET);
// set read timeout
options.c_cc[VMIN] = 0;
options.c_cc[VTIME] = 5; // 0.5 seconds
if (tcsetattr(fd, TCSANOW, &options))
{
log_error("Cannot set RNode port options!");
err_code = 1;
}
p_uart->tty_fd = fd;
return err_code;
}
int uart_drv_close(uart_drv_t *p_uart)
{
int err_code = 0;
int fd = p_uart->tty_fd;
if (fd >= 0)
{
if (close(fd))
{
log_error("Cannot close RNode port!");
err_code = 1;
}
}
else
err_code = 1;
return err_code;
}
extern uint8_t hci_seq;
uint8_t hci_errors = 0;
int uart_drv_send(uart_drv_t *p_uart, const uint8_t *pData, uint32_t nSize)
{
int err_code = 0;
uint32_t length;
uint8_t rx[256];
length = write(p_uart->tty_fd, pData, nSize);
if (length != nSize)
{
log_error("Cannot write to the RNode port!");
err_code = 1;
}
else
{
if (tcdrain(p_uart->tty_fd))
{
log_error("Cannot empty RNode port transmission buffer!");
err_code = 1;
}
}
if (err_code) {
return err_code;
}
err_code = uart_drv_receive(p_uart, rx, sizeof(rx), &length);
if (err_code) {
return err_code;
}
if (length > 0) {
uint8_t hci_ack = (rx[1] >> 3) & 0x07;
if ((hci_seq + 1) % 8 != hci_ack) {
log_error("HCI sequence number returned from RNode was invalid!");
log_trace("Expected %u, but got %u", (hci_seq + 1 % 8), hci_ack);
hci_errors++;
} else {
hci_errors = 0;
}
} else {
log_debug("RNode hasn't responded with a HCI sequence, ignoring for now...");
hci_errors++;
}
if (hci_errors >= 3) {
log_error("RNode hasn't responded with a HCI sequence 3 times, aborting...");
err_code = 1;
}
return err_code;
}
int uart_drv_receive(uart_drv_t *p_uart, uint8_t *pData, uint32_t nSize, uint32_t *pSize)
{
int err_code = 0;
int32_t length;
length = read(p_uart->tty_fd, pData, nSize);
if (length < 0)
{
log_error("Cannot read RNode port!");
err_code = 1;
}
else
*pSize = length;
return err_code;
}

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/**
* Copyright (c) 2017, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Modified by Jacob Eva (Liberated Embedded Systems) (c) 2025.
* Changes licensed under the GPL.
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <string.h>
#include "uart_slip.h"
#include "../../slip_enc.h"
#include "../../logging/log.h"
#define UART_SLIP_BUFF_SIZE (UART_SLIP_SIZE_MAX * 2 + 1)
static uint8_t uart_slip_buff[UART_SLIP_BUFF_SIZE];
int uart_slip_open(uart_drv_t *p_uart, bool touch)
{
return uart_drv_open(p_uart, touch);
}
int uart_slip_close(uart_drv_t *p_uart)
{
return uart_drv_close(p_uart);
}
int uart_slip_send(uart_drv_t *p_uart, const uint8_t *pData, uint32_t nSize)
{
int err_code = 0;
uint32_t nSlipSize;
if (nSize > UART_SLIP_SIZE_MAX)
{
log_error("Cannot encode SLIP, allocated buffer too small!");
err_code = 1;
}
else
{
encode_slip(uart_slip_buff, &nSlipSize, pData, nSize, true);
err_code = uart_drv_send(p_uart, uart_slip_buff, nSlipSize);
}
return err_code;
}
int uart_slip_receive(uart_drv_t *p_uart, uint8_t *pData, uint32_t nSize, uint32_t *pSize)
{
int err_code = 0;
uint32_t sizeBuffer;
uint32_t length, slip_len = 0;
do
{
sizeBuffer = sizeof(uart_slip_buff) - slip_len;
if (!sizeBuffer)
{
log_error("RNode port buffer overflow!");
err_code = 1;
break;
}
length = 0;
err_code = uart_drv_receive(p_uart, uart_slip_buff + slip_len, sizeBuffer, &length);
if (err_code)
break;
if (!length)
{
log_error("Read no data from RNode port!");
err_code = 1;
break;
}
slip_len += length;
if (!decode_slip(pData, pSize, uart_slip_buff, slip_len))
{
break;
}
} while (!err_code);
return err_code;
}

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/**
* Copyright (c) 2017, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Modified by Jacob Eva (Liberated Embedded Systems) (c) 2025.
* Changes licensed under the GPL.
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#ifndef _INC_UART_SLIP
#define _INC_UART_SLIP
#include <stdint.h>
#include <stdbool.h>
#include "uart_drv.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define UART_SLIP_SIZE_MAX 128
int uart_slip_open(uart_drv_t *p_uart, bool touch);
int uart_slip_close(uart_drv_t *p_uart);
int uart_slip_send(uart_drv_t *p_uart, const uint8_t *pData, uint32_t nSize);
int uart_slip_receive(uart_drv_t *p_uart, uint8_t *pData, uint32_t nSize, uint32_t *pSize);
#ifdef __cplusplus
} /* ... extern "C" */
#endif /* __cplusplus */
#endif // _INC_UART_SLIP

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/**
* Copyright (c) 2018, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Modified by Jacob Eva (Liberated Embedded Systems) (c) 2025.
* Changes licensed under the GPL.
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
*/
#include <string.h>
#include "uart_drv.h"
#include "logging.h"
int uart_drv_open(uart_drv_t *p_uart, bool touch)
{
int err_code = 0;
const char *portName = p_uart->p_PortName;
CHAR portFileName[14];
HANDLE handlePort_ = INVALID_HANDLE_VALUE;
strcpy(portFileName, "\\\\.\\");
if (strlen(portName) <= 6)
strcat(portFileName, portName);
else
{
logger_error("Invalid COM port!");
err_code = 1;
}
if (!err_code)
{
handlePort_ = CreateFile(portFileName, // Specify port device: default "COM1"
GENERIC_READ | GENERIC_WRITE, // Specify mode that open device.
0, // the devide isn't shared.
NULL, // the object gets a default security.
OPEN_EXISTING, // Specify which action to take on file.
0, // default.
NULL); // default.
if (handlePort_ == INVALID_HANDLE_VALUE)
{
logger_error("Cannot open COM port!");
err_code = 1;
}
}
if (!err_code)
{
DCB config_;
// Get current configuration of serial communication port.
if (GetCommState(handlePort_, &config_) == FALSE)
{
logger_error("Cannot get COM configuration!");
err_code = 1;
}
if (!err_code)
{
config_.BaudRate = 115200; // Specify buad rate of communicaiton.
config_.StopBits = 0; // Specify stopbit of communication.
config_.Parity = 0; // Specify parity of communication.
config_.ByteSize = 8; // Specify byte of size of communication.
config_.fDtrControl = DTR_CONTROL_DISABLE;
config_.fDsrSensitivity = 0;
config_.fRtsControl = RTS_CONTROL_HANDSHAKE;
config_.fInX = 0;
config_.fOutX = 0;
config_.fBinary = 1;
if (SetCommState(handlePort_, &config_) == FALSE)
{
logger_error("Cannot set COM configuration!");
err_code = 1;
}
}
}
if (!err_code)
{
// instance an object of COMMTIMEOUTS.
COMMTIMEOUTS comTimeOut;
// Specify value is added to the product of the
// ReadTotalTimeoutMultiplier member
comTimeOut.ReadTotalTimeoutConstant = 500;
// Specify value that is multiplied
// by the requested number of bytes to be read.
comTimeOut.ReadTotalTimeoutMultiplier = 10;
// Specify time-out between charactor for receiving.
comTimeOut.ReadIntervalTimeout = 100;
// Specify value that is multiplied
// by the requested number of bytes to be sent.
comTimeOut.WriteTotalTimeoutMultiplier = 15;
// Specify value is added to the product of the
// WriteTotalTimeoutMultiplier member
comTimeOut.WriteTotalTimeoutConstant = 300;
// set the time-out parameter into device control.
SetCommTimeouts(handlePort_, &comTimeOut);
}
if (!err_code)
{
if (PurgeComm(handlePort_, PURGE_RXCLEAR) == FALSE)
{
logger_error("Cannot purge COM RX buffer!");
err_code = 1;
}
}
if (err_code && handlePort_ != INVALID_HANDLE_VALUE)
{
p_uart->portHandle = handlePort_;
uart_drv_close(p_uart);
handlePort_ = INVALID_HANDLE_VALUE;
}
p_uart->portHandle = handlePort_;
return err_code;
}
int uart_drv_close(uart_drv_t *p_uart)
{
int err_code = 0;
HANDLE portHandle = p_uart->portHandle;
if (portHandle != INVALID_HANDLE_VALUE)
{
if (CloseHandle(portHandle) == FALSE) // Call this function to close port.
{
logger_error("Cannot close COM port!");
err_code = 1;
}
}
else
err_code = 1;
return err_code;
}
int uart_drv_send(uart_drv_t *p_uart, const uint8_t *pData, uint32_t nSize)
{
int err_code = 0;
HANDLE portHandle = p_uart->portHandle;
DWORD length;
if (WriteFile(portHandle, // handle to file to write to
pData, // pointer to data to write to file
nSize, // number of bytes to write
&length, NULL) == FALSE || // pointer to number of bytes written
length < nSize)
{
logger_error("Cannot write COM port!");
err_code = 1;
}
return err_code;
}
int uart_drv_receive(uart_drv_t *p_uart, uint8_t *pData, uint32_t nSize, uint32_t *pSize)
{
int err_code = 0;
HANDLE portHandle = p_uart->portHandle;
DWORD length = 0;
if (ReadFile(portHandle, // handle of file to read
pData, // pointer to data to read from file
nSize, // number of bytes to read
&length, // pointer to number of bytes read
NULL) == FALSE) // pointer to structure for data
{
logger_error("Cannot read COM port!");
err_code = 1;
}
*pSize = length;
return err_code;
}

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// Copyright (C) 2024, Mark Qvist
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
//
// Modified by Jacob Eva (Liberated Embedded Systems), still under the terms of
// the GPLv3.
#ifndef FRAMING_H
#define FRAMING_H
#define FEND 0xC0
#define FESC 0xDB
#define TFEND 0xDC
#define TFESC 0xDD
#define CMD_UNKNOWN 0xFE
#define CMD_DATA 0x00
#define CMD_FREQUENCY 0x01
#define CMD_BANDWIDTH 0x02
#define CMD_TXPOWER 0x03
#define CMD_SF 0x04
#define CMD_CR 0x05
#define CMD_RADIO_STATE 0x06
#define CMD_RADIO_LOCK 0x07
#define CMD_DETECT 0x08
#define CMD_IMPLICIT 0x09
#define CMD_LEAVE 0x0A
#define CMD_ST_ALOCK 0x0B
#define CMD_LT_ALOCK 0x0C
#define CMD_PROMISC 0x0E
#define CMD_READY 0x0F
#define CMD_STAT_RX 0x21
#define CMD_STAT_TX 0x22
#define CMD_STAT_RSSI 0x23
#define CMD_STAT_SNR 0x24
#define CMD_STAT_CHTM 0x25
#define CMD_STAT_PHYPRM 0x26
#define CMD_STAT_BAT 0x27
#define CMD_STAT_CSMA 0x28
#define CMD_BLINK 0x30
#define CMD_RANDOM 0x40
#define CMD_FB_EXT 0x41
#define CMD_FB_READ 0x42
#define CMD_FB_WRITE 0x43
#define CMD_FB_READL 0x44
#define CMD_DISP_READ 0x66
#define CMD_DISP_INT 0x45
#define CMD_DISP_ADDR 0x63
#define CMD_DISP_BLNK 0x64
#define CMD_DISP_ROT 0x67
#define CMD_DISP_RCND 0x68
#define CMD_NP_INT 0x65
#define CMD_BT_CTRL 0x46
#define CMD_BT_PIN 0x62
#define CMD_DIS_IA 0x69
#define CMD_BOARD 0x47
#define CMD_PLATFORM 0x48
#define CMD_MCU 0x49
#define CMD_FW_VERSION 0x50
#define CMD_ROM_READ 0x51
#define CMD_ROM_WRITE 0x52
#define CMD_CONF_SAVE 0x53
#define CMD_CONF_DELETE 0x54
#define CMD_DEV_HASH 0x56
#define CMD_DEV_SIG 0x57
#define CMD_FW_HASH 0x58
#define CMD_HASHES 0x60
#define CMD_FW_UPD 0x61
#define CMD_UNLOCK_ROM 0x59
#define ROM_UNLOCK_BYTE 0xF8
#define CMD_RESET 0x55
#define CMD_RESET_BYTE 0xF8
#define CMD_INTERFACES 0x64
#define CMD_SEL_INT 0x1F
#define DETECT_REQ 0x73
#define DETECT_RESP 0x46
#define RADIO_STATE_OFF 0x00
#define RADIO_STATE_ON 0x01
#define NIBBLE_SEQ 0xF0
#define NIBBLE_FLAGS 0x0F
#define FLAG_SPLIT 0x01
#define SEQ_UNSET 0xFF
#define CMD_ERROR 0x90
#define ERROR_INITRADIO 0x01
#define ERROR_TXFAILED 0x02
#define ERROR_EEPROM_LOCKED 0x03
#define ERROR_QUEUE_FULL 0x04
#define ERROR_MEMORY_LOW 0x05
#define ERROR_MODEM_TIMEOUT 0x06
#endif

19
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Copyright (c) 2020 rxi
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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Sourced from [here](https://github.com/rxi/log.c).

171
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/*
* Copyright (c) 2020 rxi
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include "log.h"
#define MAX_CALLBACKS 32
const char library[] = "librnode";
typedef struct {
log_LogFn fn;
void *udata;
int level;
} Callback;
static struct {
void *udata;
log_LockFn lock;
int level;
bool quiet;
Callback callbacks[MAX_CALLBACKS];
} L;
static const char *level_strings[] = {
"TRACE", "DEBUG", "INFO", "WARN", "ERROR", "FATAL"
};
#ifdef LOG_USE_COLOR
static const char *level_colors[] = {
"\x1b[94m", "\x1b[36m", "\x1b[32m", "\x1b[33m", "\x1b[31m", "\x1b[35m"
};
#endif
static void stdout_callback(log_Event *ev) {
char buf[16];
buf[strftime(buf, sizeof(buf), "%H:%M:%S", ev->time)] = '\0';
#ifdef LOG_USE_COLOR
fprintf(
ev->udata, "%s %s%-5s\x1b[0m \x1b[90m(%s) %s:%d:\x1b[0m ",
buf, level_colors[ev->level], level_strings[ev->level],
library, ev->file, ev->line);
#else
fprintf(
ev->udata, "%s %-5s (%s) %s:%d: ",
buf, level_strings[ev->level], library, ev->file, ev->line);
#endif
vfprintf(ev->udata, ev->fmt, ev->ap);
fprintf(ev->udata, "\n");
fflush(ev->udata);
}
static void file_callback(log_Event *ev) {
char buf[64];
buf[strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", ev->time)] = '\0';
fprintf(
ev->udata, "%s %-5s (%s) %s:%d: ",
buf, level_strings[ev->level], library, ev->file, ev->line);
vfprintf(ev->udata, ev->fmt, ev->ap);
fprintf(ev->udata, "\n");
fflush(ev->udata);
}
static void lock(void) {
if (L.lock) { L.lock(true, L.udata); }
}
static void unlock(void) {
if (L.lock) { L.lock(false, L.udata); }
}
const char* log_level_string(int level) {
return level_strings[level];
}
void log_set_lock(log_LockFn fn, void *udata) {
L.lock = fn;
L.udata = udata;
}
void log_set_level(int level) {
L.level = level;
}
void log_set_quiet(bool enable) {
L.quiet = enable;
}
int log_add_callback(log_LogFn fn, void *udata, int level) {
for (int i = 0; i < MAX_CALLBACKS; i++) {
if (!L.callbacks[i].fn) {
L.callbacks[i] = (Callback) { fn, udata, level };
return 0;
}
}
return -1;
}
int log_add_fp(FILE *fp, int level) {
return log_add_callback(file_callback, fp, level);
}
static void init_event(log_Event *ev, void *udata) {
if (!ev->time) {
time_t t = time(NULL);
ev->time = localtime(&t);
}
ev->udata = udata;
}
void log_log(int level, const char *file, int line, const char *fmt, ...) {
log_Event ev = {
.fmt = fmt,
.file = file,
.line = line,
.level = level,
};
lock();
if (!L.quiet && level >= L.level) {
init_event(&ev, stderr);
va_start(ev.ap, fmt);
stdout_callback(&ev);
va_end(ev.ap);
}
for (int i = 0; i < MAX_CALLBACKS && L.callbacks[i].fn; i++) {
Callback *cb = &L.callbacks[i];
if (level >= cb->level) {
init_event(&ev, cb->udata);
va_start(ev.ap, fmt);
cb->fn(&ev);
va_end(ev.ap);
}
}
unlock();
}

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/**
* Copyright (c) 2020 rxi
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MIT license. See `log.c` for details.
*/
#ifndef LOG_H
#define LOG_H
#include <stdio.h>
#include <stdarg.h>
#include <stdbool.h>
#include <time.h>
#define LOG_VERSION "0.1.0"
typedef struct {
va_list ap;
const char *fmt;
const char *file;
struct tm *time;
void *udata;
int line;
int level;
} log_Event;
typedef void (*log_LogFn)(log_Event *ev);
typedef void (*log_LockFn)(bool lock, void *udata);
enum { LOG_TRACE, LOG_DEBUG, LOG_INFO, LOG_WARN, LOG_ERROR, LOG_FATAL };
#define log_trace(...) log_log(LOG_TRACE, __FILE__, __LINE__, __VA_ARGS__)
#define log_debug(...) log_log(LOG_DEBUG, __FILE__, __LINE__, __VA_ARGS__)
#define log_info(...) log_log(LOG_INFO, __FILE__, __LINE__, __VA_ARGS__)
#define log_warn(...) log_log(LOG_WARN, __FILE__, __LINE__, __VA_ARGS__)
#define log_error(...) log_log(LOG_ERROR, __FILE__, __LINE__, __VA_ARGS__)
#define log_fatal(...) log_log(LOG_FATAL, __FILE__, __LINE__, __VA_ARGS__)
const char* log_level_string(int level);
void log_set_lock(log_LockFn fn, void *udata);
void log_set_level(int level);
void log_set_quiet(bool enable);
int log_add_callback(log_LogFn fn, void *udata, int level);
int log_add_fp(FILE *fp, int level);
void log_log(int level, const char *file, int line, const char *fmt, ...);
#endif

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/* Copyright (c) 2025 - Jacob Eva (Liberated Embedded Systems)
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef SERIAL_H
#define SERIAL_H
int open_port(char* path, uint32_t baud);
int write_port(int fd, uint8_t* data, uint16_t data_len);
int read_port(int fd, uint8_t* rx_data, uint16_t size);
int close_port(int fd);
#endif

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/* Copyright (c) 2025 - Jacob Eva (Liberated Embedded Systems)
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <unistd.h>
#include <fcntl.h>
#include <termios.h>
#include <stdint.h>
#include "logging/log.h"
int open_port(char* path, uint32_t baud) {
struct termios options;
speed_t baud_s;
// Currently RNodes only support a baud rate of 115200, add more support as needed in future.
switch (baud) {
case 115200:
baud_s = B115200;
break;
default:
baud_s = B115200;
break;
}
int fd = open(path, O_RDWR | O_NOCTTY);
tcgetattr(fd, &options);
cfsetispeed(&options, baud_s);
cfsetospeed(&options, baud_s);
// 8N1
options.c_cflag &= ~PARENB;
options.c_cflag &= ~CSTOPB;
options.c_cflag &= ~CSIZE;
options.c_cflag |= CS8;
// ignore DCD line
options.c_cflag |= (CLOCAL | CREAD);
// disable input mapping options
options.c_iflag &= ~(ISTRIP | INLCR | IGNCR | ICRNL | IUCLC);
// select RAW input
options.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);
// select RAW output
options.c_oflag &= ~OPOST;
// disable output mapping options
options.c_oflag &= ~(OLCUC | ONLCR | OCRNL | ONOCR | ONLRET);
// set read timeout
options.c_cc[VMIN] = 0;
options.c_cc[VTIME] = 5; // 0.5 seconds
if (tcsetattr(fd, TCSANOW, &options))
{
log_error("Cannot set RNode port options!");
return -1;
} else {
return fd;
}
}
int write_port(int fd, uint8_t* data, uint16_t data_len) {
unsigned char data_str[1024] = "";
for (int i = 0; i < data_len; i++) {
sprintf(data_str+(i*3), "%02x ", data[i]);
}
log_trace("Writing [%s] to RNode serial port.", data_str);
if (write(fd, data, data_len) != data_len) {
log_error("Could not write all data to the RNode port! Is the RNode still connected?");
return -1;
} else {
return 0;
}
}
int read_port(int fd, uint8_t* rx_data, uint16_t size) {
int ret = read(fd, rx_data, size);
if (ret == -1) {
log_error("Could not read from RNode port! Is the RNode still connected?");
}
return ret;
}
int close_port(int fd) {
return close(fd);
}

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/* Copyright (c) 2025 - Jacob Eva (Liberated Embedded Systems)
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/

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/**
* Copyright (c) 2017, Nordic Semiconductor ASA
* Modified by Jacob Eva (Liberated Embedded Systems) (c) 2025.
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Modified by Jacob Eva (Liberated Embedded Systems) (c) 2025.
* Changes licensed under the GPL.
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <stdbool.h>
#include "slip_enc.h"
#define SLIP_ESC 0333
#define SLIP_ESC_END 0334
#define SLIP_ESC_ESC 0335
// https://github.com/adafruit/Adafruit_nRF52_nrfutil/blob/master/nordicsemi/dfu/util.py#L82
void slip_header(uint8_t seq, bool dip, bool rp, uint8_t pkt_type, uint32_t pkt_len, uint8_t* header) {
header[0] = seq | (((seq + 1) % 8) << 3) | (dip << 6) | (rp << 7);
header[1] = pkt_type | ((pkt_len & 0x000F) << 4);
header[2] = (pkt_len & 0x0FF0) >> 4;
header[3] = (~(header[0] + header[1] + header[2]) + 1) & 0xFF;
}
void encode_slip(uint8_t *pDestData, uint32_t *pDestSize, const uint8_t *pSrcData, uint32_t nSrcSize, bool frame)
{
uint32_t n, nDestSize;
nDestSize = 0;
if (frame) {
*pDestData++ = SLIP_END;
nDestSize++;
}
for (n = 0; n < nSrcSize; n++)
{
uint8_t nSrcByte = *(pSrcData + n);
if (nSrcByte == SLIP_END)
{
*pDestData++ = SLIP_ESC;
*pDestData++ = SLIP_ESC_END;
nDestSize += 2;
}
else if (nSrcByte == SLIP_ESC)
{
*pDestData++ = SLIP_ESC;
*pDestData++ = SLIP_ESC_ESC;
nDestSize += 2;
}
else
{
*pDestData++ = nSrcByte;
nDestSize++;
}
}
if (frame) {
*pDestData = SLIP_END;
nDestSize++;
}
*pDestSize = nDestSize;
}
int decode_slip(uint8_t *pDestData, uint32_t *pDestSize, const uint8_t *pSrcData, uint32_t nSrcSize)
{
int err_code = 1;
uint32_t n, nDestSize = 0;
bool is_escaped = false;
for (n = 0; n < nSrcSize; n++)
{
uint8_t nSrcByte = *(pSrcData + n);
if (nSrcByte == SLIP_END)
{
if (!is_escaped)
err_code = 0; // Done. OK
break;
}
else if (nSrcByte == SLIP_ESC)
{
if (is_escaped)
{
// should not get SLIP_ESC twice...
err_code = 1;
break;
}
else
is_escaped = true;
}
else if (nSrcByte == SLIP_ESC_END)
{
if (is_escaped)
{
is_escaped = false;
*pDestData++ = SLIP_END;
}
else
*pDestData++ = nSrcByte;
nDestSize++;
}
else if (nSrcByte == SLIP_ESC_ESC)
{
if (is_escaped)
{
is_escaped = false;
*pDestData++ = SLIP_ESC;
}
else
*pDestData++ = nSrcByte;
nDestSize++;
}
else
{
*pDestData++ = nSrcByte;
nDestSize++;
}
}
*pDestSize = nDestSize;
return err_code;
}

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/**
* Copyright (c) 2017, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Modified by Jacob Eva (Liberated Embedded Systems) (c) 2025.
* Changes licensed under the GPL.
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#ifndef _INC_SLIP_ENC
#define _INC_SLIP_ENC
#include <stdint.h>
#include <stdbool.h>
#define SLIP_END 0300
#define SLIP_HEADER_LEN 4
#define SLIP_GROW_FACTOR 2
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
void slip_header(uint8_t seq, bool dip, bool rp, uint8_t pkt_type, uint32_t pkt_len, uint8_t* header);
void encode_slip(uint8_t *pDestData, uint32_t *pDestSize, const uint8_t *pSrcData, uint32_t nSrcSize, bool frame);
int decode_slip(uint8_t *pDestData, uint32_t *pDestSize, const uint8_t *pSrcData, uint32_t nSrcSize);
#ifdef __cplusplus
} /* ... extern "C" */
#endif /* __cplusplus */
#endif // _INC_SLIP_ENC

29
src/libs/util.c Normal file
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/* Copyright (c) 2025 - Jacob Eva (Liberated Embedded Systems)
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "util.h"
int sleep_ms(int ms)
{
#ifdef WIN32
Sleep(ms);
return 0;
#elif _POSIX_C_SOURCE >= 199309L
struct timespec ts;
ts.tv_sec = ms / 1000;
ts.tv_nsec = (ms % 1000) * 1000000;
return nanosleep(&ts, NULL);
#else
return usleep(ms * 1000);
#endif
}

22
src/libs/util.h Normal file
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/* Copyright (c) 2025 - Jacob Eva (Liberated Embedded Systems)
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef __UTIL_H
#define __UTIL_H
#include <unistd.h>
#include <time.h>
int sleep_ms(int ms);
#endif

786
src/libs/zip.c Normal file
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/*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include "zip.h"
#include "miniz.h"
#include <errno.h>
#include <sys/stat.h>
#include <time.h>
#if defined _WIN32 || defined __WIN32__
/* Win32, DOS */
#include <direct.h>
#define MKDIR(DIRNAME) _mkdir(DIRNAME)
#define STRCLONE(STR) ((STR) ? _strdup(STR) : NULL)
#define HAS_DEVICE(P) \
((((P)[0] >= 'A' && (P)[0] <= 'Z') || ((P)[0] >= 'a' && (P)[0] <= 'z')) && \
(P)[1] == ':')
#define FILESYSTEM_PREFIX_LEN(P) (HAS_DEVICE(P) ? 2 : 0)
#define ISSLASH(C) ((C) == '/' || (C) == '\\')
#else
#define MKDIR(DIRNAME) mkdir(DIRNAME, 0755)
#define STRCLONE(STR) ((STR) ? strdup(STR) : NULL)
#endif
#ifndef FILESYSTEM_PREFIX_LEN
#define FILESYSTEM_PREFIX_LEN(P) 0
#endif
#ifndef ISSLASH
#define ISSLASH(C) ((C) == '/')
#endif
#define CLEANUP(ptr) \
do { \
if (ptr) { \
free((void *)ptr); \
ptr = NULL; \
} \
} while (0)
static char *basename(const char *name) {
char const *p;
char const *base = name += FILESYSTEM_PREFIX_LEN(name);
int all_slashes = 1;
for (p = name; *p; p++) {
if (ISSLASH(*p))
base = p + 1;
else
all_slashes = 0;
}
/* If NAME is all slashes, arrange to return `/'. */
if (*base == '\0' && ISSLASH(*name) && all_slashes) --base;
return (char *)base;
}
static int mkpath(const char *path) {
char const *p;
char npath[MAX_PATH + 1] = {0};
int len = 0;
for (p = path; *p && len < MAX_PATH; p++) {
if (ISSLASH(*p) && len > 0) {
if (MKDIR(npath) == -1)
if (errno != EEXIST) return -1;
}
npath[len++] = *p;
}
return 0;
}
static char *strrpl(const char *str, size_t n, char oldchar, char newchar) {
char c;
size_t i;
char *rpl = (char *)calloc((1 + n), sizeof(char));
char *begin = rpl;
if (!rpl) {
return NULL;
}
for(i = 0; (i < n) && (c = *str++); ++i) {
if (c == oldchar) {
c = newchar;
}
*rpl++ = c;
}
return begin;
}
struct zip_entry_t {
int index;
const char *name;
mz_uint64 uncomp_size;
mz_uint64 comp_size;
mz_uint32 uncomp_crc32;
mz_uint64 offset;
mz_uint8 header[MZ_ZIP_LOCAL_DIR_HEADER_SIZE];
mz_uint64 header_offset;
mz_uint16 method;
mz_zip_writer_add_state state;
tdefl_compressor comp;
};
struct zip_t {
mz_zip_archive archive;
mz_uint level;
struct zip_entry_t entry;
};
struct zip_t *zip_open(const char *zipname, int level, char mode) {
struct zip_t *zip = NULL;
if (!zipname || strlen(zipname) < 1) {
// zip_t archive name is empty or NULL
goto cleanup;
}
if (level < 0) level = MZ_DEFAULT_LEVEL;
if ((level & 0xF) > MZ_UBER_COMPRESSION) {
// Wrong compression level
goto cleanup;
}
zip = (struct zip_t *)calloc((size_t)1, sizeof(struct zip_t));
if (!zip) goto cleanup;
zip->level = level;
switch (mode) {
case 'w':
// Create a new archive.
if (!mz_zip_writer_init_file(&(zip->archive), zipname, 0)) {
// Cannot initialize zip_archive writer
goto cleanup;
}
break;
case 'r':
case 'a':
if (!mz_zip_reader_init_file(
&(zip->archive), zipname,
level | MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY)) {
// An archive file does not exist or cannot initialize
// zip_archive reader
goto cleanup;
}
if (mode == 'a' &&
!mz_zip_writer_init_from_reader(&(zip->archive), zipname)) {
mz_zip_reader_end(&(zip->archive));
goto cleanup;
}
break;
default:
goto cleanup;
}
return zip;
cleanup:
CLEANUP(zip);
return NULL;
}
void zip_close(struct zip_t *zip) {
if (zip) {
// Always finalize, even if adding failed for some reason, so we have a
// valid central directory.
mz_zip_writer_finalize_archive(&(zip->archive));
mz_zip_writer_end(&(zip->archive));
mz_zip_reader_end(&(zip->archive));
CLEANUP(zip);
}
}
int zip_entry_open(struct zip_t *zip, const char *entryname) {
size_t entrylen = 0;
mz_zip_archive *pzip = NULL;
mz_uint num_alignment_padding_bytes, level;
mz_zip_archive_file_stat stats;
if (!zip || !entryname) {
return -1;
}
entrylen = strlen(entryname);
if (entrylen < 1) {
return -1;
}
/*
.ZIP File Format Specification Version: 6.3.3
4.4.17.1 The name of the file, with optional relative path.
The path stored MUST not contain a drive or
device letter, or a leading slash. All slashes
MUST be forward slashes '/' as opposed to
backwards slashes '\' for compatibility with Amiga
and UNIX file systems etc. If input came from standard
input, there is no file name field.
*/
zip->entry.name = strrpl(entryname, entrylen, '\\', '/');
if (!zip->entry.name) {
// Cannot parse zip entry name
return -1;
}
pzip = &(zip->archive);
if (pzip->m_zip_mode == MZ_ZIP_MODE_READING) {
zip->entry.index = mz_zip_reader_locate_file(pzip, zip->entry.name, NULL, 0);
if (zip->entry.index < 0) {
goto cleanup;
}
if (!mz_zip_reader_file_stat(pzip, zip->entry.index, &stats)) {
goto cleanup;
}
zip->entry.comp_size = stats.m_comp_size;
zip->entry.uncomp_size = stats.m_uncomp_size;
zip->entry.uncomp_crc32 = stats.m_crc32;
zip->entry.offset = stats.m_central_dir_ofs;
zip->entry.header_offset = stats.m_local_header_ofs;
zip->entry.method = stats.m_method;
return 0;
}
zip->entry.index = zip->archive.m_total_files;
zip->entry.comp_size = 0;
zip->entry.uncomp_size = 0;
zip->entry.uncomp_crc32 = MZ_CRC32_INIT;
zip->entry.offset = zip->archive.m_archive_size;
zip->entry.header_offset = zip->archive.m_archive_size;
memset(zip->entry.header, 0,
MZ_ZIP_LOCAL_DIR_HEADER_SIZE * sizeof(mz_uint8));
zip->entry.method = 0;
num_alignment_padding_bytes =
mz_zip_writer_compute_padding_needed_for_file_alignment(pzip);
if (!pzip->m_pState || (pzip->m_zip_mode != MZ_ZIP_MODE_WRITING)) {
// Wrong zip mode
goto cleanup;
}
if (zip->level & MZ_ZIP_FLAG_COMPRESSED_DATA) {
// Wrong zip compression level
goto cleanup;
}
// no zip64 support yet
if ((pzip->m_total_files == 0xFFFF) ||
((pzip->m_archive_size + num_alignment_padding_bytes +
MZ_ZIP_LOCAL_DIR_HEADER_SIZE + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE +
entrylen) > 0xFFFFFFFF)) {
// No zip64 support yet
goto cleanup;
}
if (!mz_zip_writer_write_zeros(
pzip, zip->entry.offset,
num_alignment_padding_bytes + sizeof(zip->entry.header))) {
// Cannot memset zip entry header
goto cleanup;
}
zip->entry.header_offset += num_alignment_padding_bytes;
if (pzip->m_file_offset_alignment) {
MZ_ASSERT((zip->entry.header_offset &
(pzip->m_file_offset_alignment - 1)) == 0);
}
zip->entry.offset +=
num_alignment_padding_bytes + sizeof(zip->entry.header);
if (pzip->m_pWrite(pzip->m_pIO_opaque, zip->entry.offset, zip->entry.name,
entrylen) != entrylen) {
// Cannot write data to zip entry
goto cleanup;
}
zip->entry.offset += entrylen;
level = zip->level & 0xF;
if (level) {
zip->entry.state.m_pZip = pzip;
zip->entry.state.m_cur_archive_file_ofs = zip->entry.offset;
zip->entry.state.m_comp_size = 0;
if (tdefl_init(&(zip->entry.comp), mz_zip_writer_add_put_buf_callback,
&(zip->entry.state),
tdefl_create_comp_flags_from_zip_params(
level, -15, MZ_DEFAULT_STRATEGY)) !=
TDEFL_STATUS_OKAY) {
// Cannot initialize the zip compressor
goto cleanup;
}
}
return 0;
cleanup:
CLEANUP(zip->entry.name);
return -1;
}
int zip_entry_openbyindex(struct zip_t *zip, int index) {
mz_zip_archive *pZip = NULL;
mz_zip_archive_file_stat stats;
if (!zip) {
// zip_t handler is not initialized
return -1;
}
pZip = &(zip->archive);
if (pZip->m_zip_mode != MZ_ZIP_MODE_READING) {
// open by index requires readonly mode
return -1;
}
if (index < 0 || (mz_uint)index >= pZip->m_total_files) {
// index out of range
return -1;
}
const mz_uint8 *pHeader = &MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir, mz_uint8, MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, mz_uint32, index));
if (!pHeader) {
// cannot find header in central directory
return -1;
}
mz_uint namelen = MZ_READ_LE16(pHeader + MZ_ZIP_CDH_FILENAME_LEN_OFS);
const char *pFilename = (const char *)pHeader + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE;
/*
.ZIP File Format Specification Version: 6.3.3
4.4.17.1 The name of the file, with optional relative path.
The path stored MUST not contain a drive or
device letter, or a leading slash. All slashes
MUST be forward slashes '/' as opposed to
backwards slashes '\' for compatibility with Amiga
and UNIX file systems etc. If input came from standard
input, there is no file name field.
*/
zip->entry.name = strrpl(pFilename, namelen, '\\', '/');
if (!zip->entry.name) {
// local entry name is NULL
return -1;
}
if (!mz_zip_reader_file_stat(pZip, index, &stats)) {
return -1;
}
zip->entry.index = index;
zip->entry.comp_size = stats.m_comp_size;
zip->entry.uncomp_size = stats.m_uncomp_size;
zip->entry.uncomp_crc32 = stats.m_crc32;
zip->entry.offset = stats.m_central_dir_ofs;
zip->entry.header_offset = stats.m_local_header_ofs;
zip->entry.method = stats.m_method;
return 0;
}
int zip_entry_close(struct zip_t *zip) {
mz_zip_archive *pzip = NULL;
mz_uint level;
tdefl_status done;
mz_uint16 entrylen;
time_t t;
struct tm *tm;
mz_uint16 dos_time, dos_date;
int status = -1;
if (!zip) {
// zip_t handler is not initialized
goto cleanup;
}
pzip = &(zip->archive);
if (pzip->m_zip_mode == MZ_ZIP_MODE_READING) {
status = 0;
goto cleanup;
}
level = zip->level & 0xF;
if (level) {
done = tdefl_compress_buffer(&(zip->entry.comp), "", 0, TDEFL_FINISH);
if (done != TDEFL_STATUS_DONE && done != TDEFL_STATUS_OKAY) {
// Cannot flush compressed buffer
goto cleanup;
}
zip->entry.comp_size = zip->entry.state.m_comp_size;
zip->entry.offset = zip->entry.state.m_cur_archive_file_ofs;
zip->entry.method = MZ_DEFLATED;
}
entrylen = (mz_uint16)strlen(zip->entry.name);
t = time(NULL);
tm = localtime(&t);
dos_time = (mz_uint16)(((tm->tm_hour) << 11) + ((tm->tm_min) << 5) +
((tm->tm_sec) >> 1));
dos_date = (mz_uint16)(((tm->tm_year + 1900 - 1980) << 9) +
((tm->tm_mon + 1) << 5) + tm->tm_mday);
// no zip64 support yet
if ((zip->entry.comp_size > 0xFFFFFFFF) ||
(zip->entry.offset > 0xFFFFFFFF)) {
// No zip64 support, yet
goto cleanup;
}
if (!mz_zip_writer_create_local_dir_header(
pzip, zip->entry.header, entrylen, 0, zip->entry.uncomp_size,
zip->entry.comp_size, zip->entry.uncomp_crc32, zip->entry.method, 0,
dos_time, dos_date)) {
// Cannot create zip entry header
goto cleanup;
}
if (pzip->m_pWrite(pzip->m_pIO_opaque, zip->entry.header_offset,
zip->entry.header, sizeof(zip->entry.header)) !=
sizeof(zip->entry.header)) {
// Cannot write zip entry header
goto cleanup;
}
if (!mz_zip_writer_add_to_central_dir(
pzip, zip->entry.name, entrylen, NULL, 0, "", 0,
zip->entry.uncomp_size, zip->entry.comp_size,
zip->entry.uncomp_crc32, zip->entry.method, 0, dos_time, dos_date,
zip->entry.header_offset, 0)) {
// Cannot write to zip central dir
goto cleanup;
}
pzip->m_total_files++;
pzip->m_archive_size = zip->entry.offset;
status = 0;
cleanup:
CLEANUP(zip->entry.name);
return status;
}
const char *zip_entry_name(struct zip_t *zip) {
if (!zip) {
// zip_t handler is not initialized
return NULL;
}
return zip->entry.name;
}
int zip_entry_index(struct zip_t *zip) {
if (!zip) {
// zip_t handler is not initialized
return -1;
}
return zip->entry.index;
}
int zip_entry_isdir(struct zip_t *zip) {
if (!zip) {
// zip_t handler is not initialized
return -1;
}
if (zip->entry.index < 0) {
// zip entry is not opened
return -1;
}
return (int)mz_zip_reader_is_file_a_directory(&zip->archive, (mz_uint)zip->entry.index);
}
unsigned long long zip_entry_size(struct zip_t *zip) {
return zip->entry.uncomp_size;
}
unsigned int zip_entry_crc32(struct zip_t *zip) {
return zip->entry.uncomp_crc32;
}
int zip_entry_write(struct zip_t *zip, const void *buf, size_t bufsize) {
mz_uint level;
mz_zip_archive *pzip = NULL;
tdefl_status status;
if (!zip) {
// zip_t handler is not initialized
return -1;
}
pzip = &(zip->archive);
if (buf && bufsize > 0) {
zip->entry.uncomp_size += bufsize;
zip->entry.uncomp_crc32 = (mz_uint32)mz_crc32(
zip->entry.uncomp_crc32, (const mz_uint8 *)buf, bufsize);
level = zip->level & 0xF;
if (!level) {
if ((pzip->m_pWrite(pzip->m_pIO_opaque, zip->entry.offset, buf,
bufsize) != bufsize)) {
// Cannot write buffer
return -1;
}
zip->entry.offset += bufsize;
zip->entry.comp_size += bufsize;
} else {
status = tdefl_compress_buffer(&(zip->entry.comp), buf, bufsize,
TDEFL_NO_FLUSH);
if (status != TDEFL_STATUS_DONE && status != TDEFL_STATUS_OKAY) {
// Cannot compress buffer
return -1;
}
}
}
return 0;
}
int zip_entry_fwrite(struct zip_t *zip, const char *filename) {
int status = 0;
size_t n = 0;
FILE *stream = NULL;
mz_uint8 buf[MZ_ZIP_MAX_IO_BUF_SIZE] = {0};
if (!zip) {
// zip_t handler is not initialized
return -1;
}
stream = fopen(filename, "rb");
if (!stream) {
// Cannot open filename
return -1;
}
while ((n = fread(buf, sizeof(mz_uint8), MZ_ZIP_MAX_IO_BUF_SIZE, stream)) >
0) {
if (zip_entry_write(zip, buf, n) < 0) {
status = -1;
break;
}
}
fclose(stream);
return status;
}
int zip_entry_read(struct zip_t *zip, void **buf, size_t *bufsize) {
mz_zip_archive *pzip = NULL;
mz_uint idx;
if (!zip) {
// zip_t handler is not initialized
return -1;
}
pzip = &(zip->archive);
if (pzip->m_zip_mode != MZ_ZIP_MODE_READING || zip->entry.index < 0) {
// the entry is not found or we do not have read access
return -1;
}
idx = (mz_uint)zip->entry.index;
if (mz_zip_reader_is_file_a_directory(pzip, idx)) {
// the entry is a directory
return -1;
}
*buf = mz_zip_reader_extract_to_heap(pzip, idx, bufsize, 0);
return (*buf) ? 0 : -1;
}
int zip_entry_noallocread(struct zip_t *zip, void *buf, size_t bufsize) {
mz_zip_archive *pzip = NULL;
mz_uint idx;
if (!zip) {
// zip_t handler is not initialized
return -1;
}
pzip = &(zip->archive);
if (pzip->m_zip_mode != MZ_ZIP_MODE_READING || zip->entry.index < 0) {
// the entry is not found or we do not have read access
return -1;
}
idx = (mz_uint)zip->entry.index;
if (!mz_zip_reader_extract_to_mem_no_alloc(pzip, idx, buf, bufsize, 0, NULL, 0)) {
return -1;
}
return 0;
}
int zip_entry_fread(struct zip_t *zip, const char *filename) {
mz_zip_archive *pzip = NULL;
mz_uint idx;
if (!zip) {
// zip_t handler is not initialized
return -1;
}
pzip = &(zip->archive);
if (pzip->m_zip_mode != MZ_ZIP_MODE_READING || zip->entry.index < 0) {
// the entry is not found or we do not have read access
return -1;
}
idx = (mz_uint)zip->entry.index;
if (mz_zip_reader_is_file_a_directory(pzip, idx)) {
// the entry is a directory
return -1;
}
return (mz_zip_reader_extract_to_file(pzip, idx, filename, 0)) ? 0 : -1;
}
int zip_entry_extract(struct zip_t *zip,
size_t (*on_extract)(void *arg, unsigned long long offset,
const void *buf, size_t bufsize),
void *arg) {
mz_zip_archive *pzip = NULL;
mz_uint idx;
if (!zip) {
// zip_t handler is not initialized
return -1;
}
pzip = &(zip->archive);
if (pzip->m_zip_mode != MZ_ZIP_MODE_READING || zip->entry.index < 0) {
// the entry is not found or we do not have read access
return -1;
}
idx = (mz_uint)zip->entry.index;
return (mz_zip_reader_extract_to_callback(pzip, idx, on_extract, arg, 0)) ? 0 : -1;
}
int zip_total_entries(struct zip_t *zip) {
if (!zip) {
// zip_t handler is not initialized
return -1;
}
return zip->archive.m_total_files;
}
int zip_create(const char *zipname, const char *filenames[], size_t len) {
int status = 0;
size_t i;
mz_zip_archive zip_archive;
if (!zipname || strlen(zipname) < 1) {
// zip_t archive name is empty or NULL
return -1;
}
// Create a new archive.
if (!memset(&(zip_archive), 0, sizeof(zip_archive))) {
// Cannot memset zip archive
return -1;
}
if (!mz_zip_writer_init_file(&zip_archive, zipname, 0)) {
// Cannot initialize zip_archive writer
return -1;
}
for (i = 0; i < len; ++i) {
const char *name = filenames[i];
if (!name) {
status = -1;
break;
}
if (!mz_zip_writer_add_file(&zip_archive, basename(name), name, "", 0,
ZIP_DEFAULT_COMPRESSION_LEVEL)) {
// Cannot add file to zip_archive
status = -1;
break;
}
}
mz_zip_writer_finalize_archive(&zip_archive);
mz_zip_writer_end(&zip_archive);
return status;
}
int zip_extract(const char *zipname, const char *dir,
int (*on_extract)(const char *filename, void *arg), void *arg) {
int status = -1;
mz_uint i, n;
char path[MAX_PATH + 1] = {0};
mz_zip_archive zip_archive;
mz_zip_archive_file_stat info;
size_t dirlen = 0;
if (!memset(&(zip_archive), 0, sizeof(zip_archive))) {
// Cannot memset zip archive
return -1;
}
if (!zipname || !dir) {
// Cannot parse zip archive name
return -1;
}
dirlen = strlen(dir);
if (dirlen + 1 > MAX_PATH) {
return -1;
}
// Now try to open the archive.
if (!mz_zip_reader_init_file(&zip_archive, zipname, 0)) {
// Cannot initialize zip_archive reader
return -1;
}
strcpy(path, dir);
if (!ISSLASH(path[dirlen - 1])) {
#if defined _WIN32 || defined __WIN32__
path[dirlen] = '\\';
#else
path[dirlen] = '/';
#endif
++dirlen;
}
// Get and print information about each file in the archive.
n = mz_zip_reader_get_num_files(&zip_archive);
for (i = 0; i < n; ++i) {
if (!mz_zip_reader_file_stat(&zip_archive, i, &info)) {
// Cannot get information about zip archive;
goto out;
}
strncpy(&path[dirlen], info.m_filename, MAX_PATH - dirlen);
if (mkpath(path) < 0) {
// Cannot make a path
goto out;
}
if (!mz_zip_reader_is_file_a_directory(&zip_archive, i)) {
if (!mz_zip_reader_extract_to_file(&zip_archive, i, path, 0)) {
// Cannot extract zip archive to file
goto out;
}
}
if (on_extract) {
if (on_extract(path, arg) < 0) {
goto out;
}
}
}
status = 0;
out:
// Close the archive, freeing any resources it was using
if (!mz_zip_reader_end(&zip_archive)) {
// Cannot end zip reader
status = -1;
}
return status;
}

302
src/libs/zip.h Normal file
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/*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#pragma once
#ifndef ZIP_H
#define ZIP_H
#include <string.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifndef MAX_PATH
#define MAX_PATH 32767 /* # chars in a path name including NULL */
#endif
#define ZIP_DEFAULT_COMPRESSION_LEVEL 6
/*
This data structure is used throughout the library to represent zip archive
- forward declaration.
*/
struct zip_t;
/*
Opens zip archive with compression level using the given mode.
Args:
zipname: zip archive file name.
level: compression level (0-9 are the standard zlib-style levels).
mode: file access mode.
'r': opens a file for reading/extracting (the file must exists).
'w': creates an empty file for writing.
'a': appends to an existing archive.
Returns:
The zip archive handler or NULL on error
*/
extern struct zip_t *zip_open(const char *zipname, int level, char mode);
/*
Closes the zip archive, releases resources - always finalize.
Args:
zip: zip archive handler.
*/
extern void zip_close(struct zip_t *zip);
/*
Opens an entry by name in the zip archive.
For zip archive opened in 'w' or 'a' mode the function will append
a new entry. In readonly mode the function tries to locate the entry
in global dictionary.
Args:
zip: zip archive handler.
entryname: an entry name in local dictionary.
Returns:
The return code - 0 on success, negative number (< 0) on error.
*/
extern int zip_entry_open(struct zip_t *zip, const char *entryname);
/*
Opens a new entry by index in the zip archive.
This function is only valid if zip archive was opened in 'r' (readonly) mode.
Args:
zip: zip archive handler.
index: index in local dictionary.
Returns:
The return code - 0 on success, negative number (< 0) on error.
*/
extern int zip_entry_openbyindex(struct zip_t *zip, int index);
/*
Closes a zip entry, flushes buffer and releases resources.
Args:
zip: zip archive handler.
Returns:
The return code - 0 on success, negative number (< 0) on error.
*/
extern int zip_entry_close(struct zip_t *zip);
/*
Returns a local name of the current zip entry.
The main difference between user's entry name and local entry name
is optional relative path.
Following .ZIP File Format Specification - the path stored MUST not contain
a drive or device letter, or a leading slash.
All slashes MUST be forward slashes '/' as opposed to backwards slashes '\'
for compatibility with Amiga and UNIX file systems etc.
Args:
zip: zip archive handler.
Returns:
The pointer to the current zip entry name, or NULL on error.
*/
extern const char *zip_entry_name(struct zip_t *zip);
/*
Returns an index of the current zip entry.
Args:
zip: zip archive handler.
Returns:
The index on success, negative number (< 0) on error.
*/
extern int zip_entry_index(struct zip_t *zip);
/*
Determines if the current zip entry is a directory entry.
Args:
zip: zip archive handler.
Returns:
The return code - 1 (true), 0 (false), negative number (< 0) on error.
*/
extern int zip_entry_isdir(struct zip_t *zip);
/*
Returns an uncompressed size of the current zip entry.
Args:
zip: zip archive handler.
Returns:
The uncompressed size in bytes.
*/
extern unsigned long long zip_entry_size(struct zip_t *zip);
/*
Returns CRC-32 checksum of the current zip entry.
Args:
zip: zip archive handler.
Returns:
The CRC-32 checksum.
*/
extern unsigned int zip_entry_crc32(struct zip_t *zip);
/*
Compresses an input buffer for the current zip entry.
Args:
zip: zip archive handler.
buf: input buffer.
bufsize: input buffer size (in bytes).
Returns:
The return code - 0 on success, negative number (< 0) on error.
*/
extern int zip_entry_write(struct zip_t *zip, const void *buf, size_t bufsize);
/*
Compresses a file for the current zip entry.
Args:
zip: zip archive handler.
filename: input file.
Returns:
The return code - 0 on success, negative number (< 0) on error.
*/
extern int zip_entry_fwrite(struct zip_t *zip, const char *filename);
/*
Extracts the current zip entry into output buffer.
The function allocates sufficient memory for a output buffer.
Args:
zip: zip archive handler.
buf: output buffer.
bufsize: output buffer size (in bytes).
Note:
- remember to release memory allocated for a output buffer.
- for large entries, please take a look at zip_entry_extract function.
Returns:
The return code - 0 on success, negative number (< 0) on error.
*/
extern int zip_entry_read(struct zip_t *zip, void **buf, size_t *bufsize);
/*
Extracts the current zip entry into a memory buffer using no memory allocation.
Args:
zip: zip archive handler.
buf: preallocated output buffer.
bufsize: output buffer size (in bytes).
Note:
- ensure supplied output buffer is large enough.
- zip_entry_size function (returns uncompressed size for the current entry)
can be handy to estimate how big buffer is needed.
- for large entries, please take a look at zip_entry_extract function.
Returns:
The return code - 0 on success, negative number (< 0) on error (e.g. bufsize
is not large enough).
*/
extern int zip_entry_noallocread(struct zip_t *zip, void *buf, size_t bufsize);
/*
Extracts the current zip entry into output file.
Args:
zip: zip archive handler.
filename: output file.
Returns:
The return code - 0 on success, negative number (< 0) on error.
*/
extern int zip_entry_fread(struct zip_t *zip, const char *filename);
/*
Extracts the current zip entry using a callback function (on_extract).
Args:
zip: zip archive handler.
on_extract: callback function.
arg: opaque pointer (optional argument,
which you can pass to the on_extract callback)
Returns:
The return code - 0 on success, negative number (< 0) on error.
*/
extern int zip_entry_extract(struct zip_t *zip,
size_t (*on_extract)(void *arg,
unsigned long long offset,
const void *data,
size_t size),
void *arg);
/*
Returns the number of all entries (files and directories) in the zip archive.
Args:
zip: zip archive handler.
Returns:
The return code - the number of entries on success,
negative number (< 0) on error.
*/
extern int zip_total_entries(struct zip_t *zip);
/*
Creates a new archive and puts files into a single zip archive.
Args:
zipname: zip archive file.
filenames: input files.
len: number of input files.
Returns:
The return code - 0 on success, negative number (< 0) on error.
*/
extern int zip_create(const char *zipname, const char *filenames[], size_t len);
/*
Extracts a zip archive file into directory.
If on_extract_entry is not NULL, the callback will be called after
successfully extracted each zip entry.
Returning a negative value from the callback will cause abort and return an
error. The last argument (void *arg) is optional, which you can use to pass
data to the on_extract_entry callback.
Args:
zipname: zip archive file.
dir: output directory.
on_extract_entry: on extract callback.
arg: opaque pointer.
Returns:
The return code - 0 on success, negative number (< 0) on error.
*/
extern int zip_extract(const char *zipname, const char *dir,
int (*on_extract_entry)(const char *filename, void *arg),
void *arg);
#ifdef __cplusplus
}
#endif
#endif

208
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#include <tap.h>
#include "../src/librnode.h"
#include "../src/libs/logging/log.h"
#include "../src/libs/util.h"
#include <time.h>
#include <openssl/evp.h>
#include <openssl/decoder.h>
#include <openssl/rsa.h>
#include <fcntl.h>
#include <string.h> // todo remove me
#include <openssl/sha.h> // todo remove me
//char* port = "/dev/serial/by-id/usb-Silicon_Labs_CP2102_USB_to_UART_Bridge_Controller_0001-if00-port0";
char* port = "/dev/ttyACM0";
//char* port = "/dev/serial/by-id/usb-Heltec_HT-n5262_1E35113239EFFE55-if00";
char* zip = "/home/elimin8/Downloads/rnode_firmware_t3s3_sx1280_pa.zip";
char* key = "/home/elimin8/.config/rnodeconf/firmware/signing.key";
uint32_t baud = 115200;
struct RNode rn = {0};
EVP_PKEY* load_key(struct RNode* rn, char* path) {
EVP_PKEY *priv_key = EVP_PKEY_new();
OSSL_DECODER_CTX *dctx;
const char *format = "DER"; /* NULL for any format */
const char *structure = NULL; /* any structure */
const char *keytype = "RSA"; /* NULL for any key */
size_t len;
uint8_t key_buf[1024];
const uint8_t *data = key_buf;
FILE *file = fopen(path, "rb");
if (file <= 0) {
return NULL;
}
fseek(file, 0L, SEEK_END);
len = ftell(file);
fseek(file, 0L, SEEK_SET);
fread(key_buf, sizeof(uint8_t), len, file);
fclose(file);
dctx = OSSL_DECODER_CTX_new_for_pkey(&priv_key, format, structure,
keytype,
OSSL_KEYMGMT_SELECT_KEYPAIR,
NULL, NULL);
if (dctx == NULL) {
/* error: no suitable potential decoders found */
return NULL;
}
//if (pass != NULL)
// OSSL_DECODER_CTX_set_passphrase(dctx, pass, strlen(pass));
if (!OSSL_DECODER_from_data(dctx, &data, &len)) {
/* decoding failure */
return NULL;
}
OSSL_DECODER_CTX_free(dctx);
return priv_key;
}
void esp32_flash(struct RNode* rn, char* zip) {
uint8_t serial[4] = {0};
ok(rnode_set_platform(rn, PLATFORM_ESP32) == 0, "RNode set platform");
time_t start = time(NULL);
EVP_PKEY *priv_key = load_key(rn, key);
ok(priv_key != NULL, "Load EEPROM signing key");
rn->product = 0xf0;
rn->model = 0xac;
rn->hw_rev = 0x01;
rn->boot_app0_addr = 0xe000;
rn->bootloader_addr = 0x0;
rn->bin_addr = 0x10000;
rn->partitions_addr = 0x8000;
rn->console_image_addr = 0x210000;
ok(rnode_flash(rn, zip, false, serial, priv_key, true) == 0, "RNode update");
time_t end = time(NULL);
printf("Time taken for flash: %ld seconds.\n", end - start);
}
void nrf52_flash(struct RNode* rn, char* zip) {
uint8_t serial[4] = {0};
ok(rnode_set_platform(rn, PLATFORM_NRF52) == 0, "RNode set platform");
time_t start = time(NULL);
EVP_PKEY *priv_key = load_key(rn, key);
ok(priv_key != NULL, "Load EEPROM signing key");
rn->product = 0x10;
rn->model = 0x12;
rn->hw_rev = 0x01;
ok(rnode_flash(rn, zip, false, serial, priv_key, true) == 0, "RNode update");
time_t end = time(NULL);
printf("Time taken for flash: %ld seconds.\n", end - start);
}
int main() {
//printf("--- RNode reset test ---\n\n");
ok(rnode_init(&rn, port, baud, true, false) == 0, "RNode initialisation & detection");
//ok(rnode_reset(&rn) == 0, "RNode reset");
//sleep_ms(5000);
//ok(rnode_cleanup(&rn) == 0, "RNode cleanup");
//ok(rnode_init(&rn, port, baud, true, false) == 0, "RNode initialisation & detection");
//printf("--- RNode display test --- \n\n");
//ok(rnode_set_disp_int(&rn, 255) == 0, "Set display intensity to 255");
//sleep_ms(500);
//ok(rnode_set_disp_int(&rn, 0) == 0, "Set display intensity to 0");
//sleep_ms(500);
//ok(rnode_set_disp_int(&rn, 127) == 0, "Set display intensity to 127");
//sleep_ms(100);
//ok(rnode_set_disp_timeout(&rn, 1) == 0, "Set display timeout to 1 second");
//sleep_ms(5000);
//ok(rnode_set_disp_timeout(&rn, 1) == 0, "Disable display timeout");
//sleep_ms(500);
//ok(rnode_set_disp_addr(&rn, 0x3B) == 0, "Set display address to 0x3B");
//sleep_ms(500);
//ok(rnode_set_disp_addr(&rn, 0x3C) == 0, "Set display address to 0x3C");
//sleep_ms(500);
//ok(rnode_set_disp_rot(&rn, 0) == 0, "Set display rotation to 0");
//sleep_ms(2000);
//ok(rnode_cleanup(&rn) == 0, "RNode cleanup");
//ok(rnode_init(&rn, port, baud, true, false) == 0, "RNode initialisation & detection");
//ok(rnode_set_disp_rot(&rn, 1) == 0, "Set display rotation to 1");
//sleep_ms(2000);
//ok(rnode_cleanup(&rn) == 0, "RNode cleanup");
//ok(rnode_init(&rn, port, baud, true, false) == 0, "RNode initialisation & detection");
//ok(rnode_set_disp_rot(&rn, 2) == 0, "Set display rotation to 2");
//sleep_ms(2000);
//ok(rnode_cleanup(&rn) == 0, "RNode cleanup");
//ok(rnode_init(&rn, port, baud, true, false) == 0, "RNode initialisation & detection");
//ok(rnode_set_disp_rot(&rn, 3) == 0, "Set display rotation to 3");
//sleep_ms(2000);
//ok(rnode_cleanup(&rn) == 0, "RNode cleanup");
//ok(rnode_init(&rn, port, baud, true, false) == 0, "RNode initialisation & detection");
//ok(rnode_start_disp_recon(&rn) == 0, "Start display reconditioning (5s)");
//sleep_ms(5000);
//ok(rnode_reset(&rn) == 0, "RNode reset");
//sleep_ms(5000);
//ok(rnode_cleanup(&rn) == 0, "RNode cleanup");
//ok(rnode_init(&rn, port, baud, true, false) == 0, "RNode initialisation & detection");
//printf("--- RNode NP test (if present) --- \n\n");
//ok(rnode_set_np_int(&rn, 0) == 0, "Set NP intensity to 0");
//sleep_ms(500);
//ok(rnode_set_np_int(&rn, 255) == 0, "Set NP intensity to 255");
//sleep_ms(500);
//
//printf("--- RNode BT test --- \n\n");
//ok(rnode_set_bt(&rn, BT_OFF) == 0, "Disable Bluetooth");
//sleep_ms(1000);
//ok(rnode_set_bt(&rn, BT_ON) == 0, "Enable Bluetooth");
//sleep_ms(1000);
//ok(rnode_set_bt(&rn, BT_PAIRING) == 0, "Enable Bluetooth pairing");
//sleep_ms(1000);
//int pin = rnode_get_bt_pin(&rn, 30000);
//ok(pin > 0, "Get Bluetooth code (30s timeout)");
//printf("Pin: %u\n", pin);
//ok(rnode_wipe_eeprom(&rn) == 0, "Wipe RNode EEPROM");
//esp32_flash(&rn, zip);
//printf("--- RNode flash & provision test ---\n\n");
printf("--- RNode TNC mode test ---\n\n");
ok(rnode_get_interfaces(&rn) == 0, "Get interfaces");
ok(rnode_select_interface(&rn, 0) == 0, "Select interface 0");
ok(rnode_set_freq(&rn, 865700000) > 0, "Set frequency");
ok(rnode_set_sf(&rn, 7) == 0, "Set spreading factor");
ok(rnode_set_cr(&rn, 7) == 0, "Set coding rate");
ok(rnode_set_txp(&rn, 7) == 0, "Set TX power");
ok(rnode_set_tnc_mode(&rn) == 0, "Enable TNC mode");
ok(rnode_cleanup(&rn) == 0, "RNode cleanup");
done_testing();
}