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#!/usr/bin/python3
import btrfs
import sys
if len(sys.argv) < 4:
print("Usage: {} <subvolid> <inode> <mountpoint>".format(sys.argv[0]))
sys.exit(1)
tree = int(sys.argv[1])
inum = int(sys.argv[2])
with btrfs.FileSystem(sys.argv[3]) as fs:
min_key = btrfs.ctree.Key(inum, 0, 0)
max_key = btrfs.ctree.Key(inum + 1, 0, 0) - 1
for header, data in btrfs.ioctl.search_v2(fs.fd, tree, min_key, max_key):
if header.type == btrfs.ctree.INODE_ITEM_KEY:
print(btrfs.ctree.InodeItem(header, data))
elif header.type == btrfs.ctree.INODE_REF_KEY:
inode_ref_list = btrfs.ctree.InodeRefList(header, data)
print(inode_ref_list)
for inode_ref in inode_ref_list:
print(" {}".format(inode_ref))
elif header.type == btrfs.ctree.INODE_EXTREF_KEY:
inode_extref_list = btrfs.ctree.InodeExtrefList(header, data)
print(inode_extref_list)
for inode_extref in inode_extref_list:
print(" {}".format(inode_extref))
elif header.type == btrfs.ctree.XATTR_ITEM_KEY:
xattr_item_list = btrfs.ctree.XAttrItemList(header, data)
print(xattr_item_list)
for xattr_item in xattr_item_list:
print(" {}".format(xattr_item))
elif header.type == btrfs.ctree.EXTENT_DATA_KEY:
print(btrfs.ctree.FileExtentItem(header, data))
else:
print("Whoa, I didn't expect a {} key. This example can only handle metadata for a "
"regular file.".format(btrfs.ctree.key_type_str(header.type)))
sys.exit(1)
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