ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/scripts/cfe-partition-tag.py b/scripts/cfe-partition-tag.py
new file mode 100755
index 0000000..41495a9
--- /dev/null
+++ b/scripts/cfe-partition-tag.py
@@ -0,0 +1,139 @@
+#!/usr/bin/env python3
+
+"""
+CFE Partition Tag
+
+{
+ u32 part_id;
+ u32 part_size;
+ u16 flags;
+ char part_name[33];
+ char part_version[21];
+ u32 part_crc32;
+}
+
+"""
+
+import argparse
+import os
+import struct
+import binascii
+
+
+PART_NAME_SIZE = 33
+PART_VERSION_SIZE = 21
+
+
+def auto_int(x):
+ return int(x, 0)
+
+
+def str_to_bytes_pad(string, size):
+ str_bytes = string.encode()
+ num_bytes = len(str_bytes)
+ if num_bytes >= size:
+ str_bytes = str_bytes[: size - 1] + "\0".encode()
+ else:
+ str_bytes += "\0".encode() * (size - num_bytes)
+ return str_bytes
+
+
+def create_tag(args, in_bytes, size):
+ # JAM CRC32 is bitwise not and unsigned
+ crc = ~binascii.crc32(in_bytes) & 0xFFFFFFFF
+
+ tag = bytearray()
+ tag += struct.pack(">I", args.part_id)
+ tag += struct.pack(">I", size)
+ tag += struct.pack(">H", args.part_flags)
+ tag += str_to_bytes_pad(args.part_name, PART_NAME_SIZE)
+ tag += str_to_bytes_pad(args.part_version, PART_VERSION_SIZE)
+ tag += struct.pack(">I", crc)
+
+ return tag
+
+
+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()
+
+ tag = create_tag(args, in_bytes, in_size)
+
+ out_f = open(args.output_file, "w+b")
+ out_f.write(tag)
+ out_f.close()
+
+
+def main():
+ global args
+
+ parser = argparse.ArgumentParser(description="")
+
+ parser.add_argument(
+ "--flags",
+ dest="part_flags",
+ action="store",
+ type=auto_int,
+ help="Partition Flags",
+ )
+
+ parser.add_argument(
+ "--id",
+ dest="part_id",
+ action="store",
+ type=auto_int,
+ help="Partition ID",
+ )
+
+ 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(
+ "--name",
+ dest="part_name",
+ action="store",
+ type=str,
+ help="Partition Name",
+ )
+
+ parser.add_argument(
+ "--version",
+ dest="part_version",
+ action="store",
+ type=str,
+ help="Partition Version",
+ )
+
+ args = parser.parse_args()
+
+ if (
+ (not args.part_flags)
+ or (not args.part_id)
+ or (not args.input_file)
+ or (not args.output_file)
+ or (not args.part_name)
+ or (not args.part_version)
+ ):
+ parser.print_help()
+ else:
+ create_output(args)
+
+
+main()