feat(app_update): add OTA init bin

components/app_update/dump_otadata.py

@@ -0,0 +1,88 @@
+#!/usr/bin/env python
+#
+# gen_otadata prints info about the otadata partition.
+#
+# Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http:#www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import print_function, division
+import argparse
+import os
+import re
+import struct
+import sys
+import hashlib
+import binascii
+
+__version__ = '1.0'
+
+quiet = False
+
+def status(msg):
+    """ Print status message to stderr """
+    if not quiet:
+        critical(msg)
+
+def critical(msg):
+    """ Print critical message to stderr """
+    if not quiet:
+        sys.stderr.write(msg)
+        sys.stderr.write('\n')
+
+def little_endian(buff, offset):
+    data = buff[offset:offset+4]
+    data.reverse()
+    data = ''.join(data)
+    return data
+               
+def main():
+    global quiet
+    parser = argparse.ArgumentParser(description='Prints otadata partition in human readable form.')
+
+    parser.add_argument('--quiet', '-q', help="Don't print status messages to stderr", action='store_true')
+
+    search_type = parser.add_mutually_exclusive_group()
+
+    parser.add_argument('input', help='Path to binary file containing otadata partition to parse.',
+                        type=argparse.FileType('rb'))
+
+    args = parser.parse_args()
+
+    quiet = args.quiet
+
+    input = args.input.read()
+    
+    hex_input_0 = binascii.hexlify(input)
+    hex_input_0 = map(''.join, zip(*[iter(hex_input_0)]*2))
+    hex_input_1 = binascii.hexlify(input[4096:])
+    hex_input_1 = map(''.join, zip(*[iter(hex_input_1)]*2))
+    
+    print("\t%11s\t%8s    |\t%8s\t%8s" %("OTA_SEQ", "CRC", "OTA_SEQ", "CRC"))
+    print("Firmware:  0x%s  \t 0x%s |\t0x%s \t 0x%s" % (little_endian(hex_input_0, 0), little_endian(hex_input_0, 28), \
+                                                        little_endian(hex_input_1, 0), little_endian(hex_input_1, 28)))
+class InputError(RuntimeError):
+    def __init__(self, e):
+        super(InputError, self).__init__(e)
+
+class ValidationError(InputError):
+    def __init__(self, partition, message):
+        super(ValidationError, self).__init__(
+            "Partition %s invalid: %s" % (partition.name, message))
+
+if __name__ == '__main__':
+    try:
+        r = main()
+        sys.exit(r)
+    except InputError as e:
+        print(e, file=sys.stderr)
+        sys.exit(2)