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1 files changed, 36 insertions, 0 deletions

diff --git a/apple-efi-dump-verbs.py b/apple-efi-dump-verbs.py
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+++ b/apple-efi-dump-verbs.py
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+#!/usr/bin/env python3
+import argparse
+import sys
+import os
+import struct
+
+def main():
+    parser = argparse.ArgumentParser(description="Dump verbs from Apple EFI resource file")
+    parser.add_argument("file", nargs=1, help="Path to file")
+    parser.add_argument("--decode", action="store_true")
+
+    args = parser.parse_args()
+
+    file = args.file[0]
+    if not os.path.isfile(file):
+        return "%s does not exists or is not a file" % (file)
+
+    with open(args.file[0], "rb") as f:
+        f.seek(16)
+        size = struct.unpack("i", f.read(4))[0]
+
+        for i in range(int(size / 8)):
+            val = struct.unpack("i", f.read(4))[0]
+            print("0x{0:08X}".format(val), end="")
+            if (args.decode):
+                node_id = (val >> 20) & 0xffff
+                verb_id = (val >> 8) & 0xffff
+                payload = val & 0xffff
+                print(" (0x{0:02x} 0x{1:04x} 0x{2:02x})".format(node_id, verb_id, payload), end="")
+            print()
+
+if __name__ == "__main__":
+    result = main()
+    if result:
+        print("error: %s" % result)
+        sys.exit(1)