scripts: support Sercomm load tags

Header consists in Sercomm PID bytes, followed by a SHA256 hash of the
input binary.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

diff --git a/scripts/config/mconf_check b/scripts/config/mconf_check
new file mode 100644 (file)
index 0000000..e69de29

diff --git a/scripts/sercomm-payload.py b/scripts/sercomm-payload.py
new file mode 100755 (executable)
index 0000000..5193069
--- /dev/null
+++ b/scripts/sercomm-payload.py
@@ -0,0 +1,56 @@
+#!/usr/bin/env python3
+
+import argparse
+import hashlib
+import os
+
+def create_output(args):
+       in_st = os.stat(args.input_file)
+       in_size = in_st.st_size
+
+       in_f = open(args.input_file, 'r+b')
+       in_bytes = in_f.read(in_size)
+       in_f.close()
+
+       sha256 = hashlib.sha256()
+       sha256.update(in_bytes)
+
+       out_f = open(args.output_file, 'w+b')
+       out_f.write(bytes.fromhex(args.pid))
+       out_f.write(sha256.digest())
+       out_f.write(in_bytes)
+       out_f.close()
+
+def main():
+       global args
+
+       parser = argparse.ArgumentParser(description='')
+
+       parser.add_argument('--input-file',
+               dest='input_file',
+               action='store',
+               type=str,
+               help='Input file')
+
+       parser.add_argument('--output-file',
+               dest='output_file',
+               action='store',
+               type=str,
+               help='Output file')
+
+       parser.add_argument('--pid',
+               dest='pid',
+               action='store',
+               type=str,
+               help='Sercomm PID')
+
+       args = parser.parse_args()
+
+       if ((not args.input_file) or
+           (not args.output_file) or
+           (not args.pid)):
+               parser.print_help()
+
+       create_output(args)
+
+main()