1 files changed, 136 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/examples/iot/tftp/background_dfu/trigger_creator.py b/thirdparty/nRF5_SDK_15.0.0_a53641a/examples/iot/tftp/background_dfu/trigger_creator.py
new file mode 100644
index 0000000..e7ec35a
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/examples/iot/tftp/background_dfu/trigger_creator.py
@@ -0,0 +1,136 @@
+#!/usr/bin/env python
+"""
+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.
+"""
+
+import tempfile
+import argparse
+import binascii
+import sys
+import json
+import os.path
+
+from nordicsemi.dfu.package import Package
+
+def _get_manifest_items(manifest):
+    import inspect
+    result = []
+
+    for key, value in inspect.getmembers(manifest):
+        if (key.startswith('__')):
+            continue
+        if not value:
+            continue
+        if inspect.ismethod(value) or inspect.isfunction(value):
+            continue
+
+        result.append((key, value))
+
+    return result
+
+def _get_file_names(manifest):
+    data_attrs = _get_manifest_items(manifest)
+    if (len(data_attrs) > 1):
+        raise RuntimeError("More than one image present in manifest")
+    data_attrs = data_attrs[0]
+    firmware = data_attrs[1]
+    return firmware.dat_file, firmware.bin_file
+
+def unpack_package(zip_file_path, unpack_path):
+    manifest = Package.unpack_package(zip_file_path, unpack_path)
+    return _get_file_names(manifest)
+
+def _create_empty_firmware_desc():
+    return {"s": 0, "id": 0, "is": 0, "iid": 0}
+
+def _create_empty_path_desc():
+    return {"app": "", "appsd": "", "bl": ""}
+
+def get_len_and_crc(file_path):
+    with open(file_path, 'rb') as f:
+        file = f.read()
+        
+    return len(file), binascii.crc32(file) & 0xffffffff
+
+def create_trigger_file(output_file, tftp_prefix, input_path, init_filename, firmware_filename):
+    trigger = {"app": _create_empty_firmware_desc(),
+               "sd":  _create_empty_firmware_desc(),
+               "bl":  _create_empty_firmware_desc(),
+               "p":   _create_empty_path_desc(),
+               "i":   _create_empty_path_desc()}
+    
+    trigger["i"]["app"] = ''.join([tftp_prefix, init_filename])
+    trigger["p"]["app"] = ''.join([tftp_prefix, firmware_filename])
+    
+    init_len, init_crc = get_len_and_crc(os.path.join(input_path, init_filename))
+    firm_len, firm_crc = get_len_and_crc(os.path.join(input_path, firmware_filename))
+    
+    trigger["app"]["s"] = firm_len
+    trigger["app"]["id"] = firm_crc
+    trigger["app"]["is"] = init_len
+    trigger["app"]["iid"] = init_crc
+    
+    json.dump(trigger, output_file)
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(description='Creates package description file for tftp bootloader')
+    parser.add_argument('package_file',
+                        help = 'Path to package zip file')
+    parser.add_argument('output_file',
+                        help = 'Output file name. Stdout is used if file name is not given',
+                        nargs = '?')
+    parser.add_argument('--tftp_path',
+                        help = 'The path in the tftp server where firmware is going to be placed',
+                        nargs = '?',
+                        default = '')
+
+    args = parser.parse_args()
+
+    if (args.output_file):
+        output_file = open(args.output_file, 'w')
+    else:
+        output_file = sys.stdout
+
+    unpacked_zip_path = os.path.join(tempfile.mkdtemp(), 'unpacked_zip')
+
+    init_filename, firm_filename = unpack_package(args.package_file, unpacked_zip_path)
+    create_trigger_file(output_file,
+                        args.tftp_path,
+                        unpacked_zip_path,
+                        init_filename, 
+                        firm_filename)