[Qemu-devel] [PATCH v2 0/3] qemu-img: Add --backing-chain option to info command

[Stefan Hajnoczi <stefanha@redhat.com>]

This series adds the --backing-chain option for enumerating the backing file
chain.  Given the topmost image it will print qemu-img info information for
each image file in the chain.

Special care needs to be taken when image files form an infinite loop.  This is
very unusual, most like due to malicious image files.  Nevertheless, qemu-img
must be robust against invalid inputs so we explicit check for this.

Stefan Hajnoczi (3):
  qemu-img: Add --backing-chain option to info command
  qemu-img: Detect backing file chain infinite loops
  qemu-iotests: Add 041 backing file chain infinite loop test

 qemu-img.c                   | 115 ++++++++++++++++++++++++++++++++++---------
 tests/qemu-iotests/041       |  90 +++++++++++++++++++++++++++++++++
 tests/qemu-iotests/041.out   |  81 ++++++++++++++++++++++++++++++
 tests/qemu-iotests/common.rc |   9 ++++
 tests/qemu-iotests/group     |   1 +
 5 files changed, 274 insertions(+), 22 deletions(-)
 create mode 100755 tests/qemu-iotests/041
 create mode 100644 tests/qemu-iotests/041.out

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1.7.11.7