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scripts: sercomm-payload: add PID file support

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Allow passing Sercomm PID from file.
Until now, Sercomm PID could only be passed as an array of hex bytes.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
This commit is contained in:
Álvaro Fernández Rojas 2023-04-09 09:55:57 +02:00
parent 0c53801968
commit 8382c5662e
1 changed files with 18 additions and 2 deletions
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20
scripts/sercomm-payload.py
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@ -12,11 +12,21 @@ def create_output(args):
in_bytes = in_f.read(in_size) in_bytes = in_f.read(in_size)
in_f.close() in_f.close()
if (args.pid_file):
pid_st = os.stat(args.pid_file)
pid_size = pid_st.st_size
pid_f = open(args.pid_file, 'r+b')
pid_bytes = pid_f.read(pid_size)
pid_f.close()
else:
pid_bytes = bytes.fromhex(args.pid)
sha256 = hashlib.sha256() sha256 = hashlib.sha256()
sha256.update(in_bytes) sha256.update(in_bytes)
out_f = open(args.output_file, 'w+b') out_f = open(args.output_file, 'w+b')
out_f.write(bytes.fromhex(args.pid)) out_f.write(pid_bytes)
out_f.write(sha256.digest()) out_f.write(sha256.digest())
out_f.write(in_bytes) out_f.write(in_bytes)
out_f.close() out_f.close()
@ -38,6 +48,12 @@ def main():
type=str, type=str,
help='Output file') help='Output file')
parser.add_argument('--pid-file',
dest='pid_file',
action='store',
type=str,
help='Sercomm PID file')
parser.add_argument('--pid', parser.add_argument('--pid',
dest='pid', dest='pid',
action='store', action='store',
@ -48,7 +64,7 @@ def main():
if ((not args.input_file) or if ((not args.input_file) or
(not args.output_file) or (not args.output_file) or
(not args.pid)): (not args.pid_file and not args.pid)):
parser.print_help() parser.print_help()
create_output(args) create_output(args)