From ced914d0ab9fb2c900f873f6349a0b8eecd1fdbe Mon Sep 17 00:00:00 2001 From: Maxim Levitsky Date: Thu, 25 Jun 2020 14:55:45 +0200 Subject: block/core: add generic infrastructure for x-blockdev-amend qmp command MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit blockdev-amend will be used similiar to blockdev-create to allow on the fly changes of the structure of the format based block devices. Current plan is to first support encryption keyslot management for luks based formats (raw and embedded in qcow2) Signed-off-by: Maxim Levitsky Reviewed-by: Daniel P. Berrangé Message-Id: <20200608094030.670121-12-mlevitsk@redhat.com> Signed-off-by: Max Reitz --- qapi/block-core.json | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) (limited to 'qapi/block-core.json') diff --git a/qapi/block-core.json b/qapi/block-core.json index 0e1c6a59f2..c22996282f 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -4674,6 +4674,48 @@ 'data': { 'job-id': 'str', 'options': 'BlockdevCreateOptions' } } +## +# @BlockdevAmendOptions: +# +# Options for amending an image format +# +# @driver: Block driver of the node to amend. +# +# Since: 5.1 +## +{ 'union': 'BlockdevAmendOptions', + 'base': { + 'driver': 'BlockdevDriver' }, + 'discriminator': 'driver', + 'data': { + } } + +## +# @x-blockdev-amend: +# +# Starts a job to amend format specific options of an existing open block device +# The job is automatically finalized, but a manual job-dismiss is required. +# +# @job-id: Identifier for the newly created job. +# +# @node-name: Name of the block node to work on +# +# @options: Options (driver specific) +# +# @force: Allow unsafe operations, format specific +# For luks that allows erase of the last active keyslot +# (permanent loss of data), +# and replacement of an active keyslot +# (possible loss of data if IO error happens) +# +# Since: 5.1 +## +{ 'command': 'x-blockdev-amend', + 'data': { 'job-id': 'str', + 'node-name': 'str', + 'options': 'BlockdevAmendOptions', + '*force': 'bool' } } + ## # @BlockErrorAction: # -- cgit v1.2.3 From 30da9dd88a0315d73320e27dfb69093ee3ce5d1c Mon Sep 17 00:00:00 2001 From: Maxim Levitsky Date: Thu, 25 Jun 2020 14:55:46 +0200 Subject: block/crypto: implement blockdev-amend MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Maxim Levitsky Reviewed-by: Daniel P. Berrangé Reviewed-by: Max Reitz Message-Id: <20200608094030.670121-13-mlevitsk@redhat.com> Signed-off-by: Max Reitz --- qapi/block-core.json | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'qapi/block-core.json') diff --git a/qapi/block-core.json b/qapi/block-core.json index c22996282f..cd679ad435 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -4674,6 +4674,18 @@ 'data': { 'job-id': 'str', 'options': 'BlockdevCreateOptions' } } +## +# @BlockdevAmendOptionsLUKS: +# +# Driver specific image amend options for LUKS. +# +# Since: 5.1 +## +{ 'struct': 'BlockdevAmendOptionsLUKS', + 'base': 'QCryptoBlockAmendOptionsLUKS', + 'data': { } +} + ## # @BlockdevAmendOptions: # @@ -4688,7 +4700,7 @@ 'driver': 'BlockdevDriver' }, 'discriminator': 'driver', 'data': { - } } + 'luks': 'BlockdevAmendOptionsLUKS' } } ## # @x-blockdev-amend: -- cgit v1.2.3 From 8ea1613d91b2f515132f015430efaa35adb8f6d0 Mon Sep 17 00:00:00 2001 From: Maxim Levitsky Date: Thu, 25 Jun 2020 14:55:47 +0200 Subject: block/qcow2: implement blockdev-amend MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Currently the implementation only supports amending the encryption options, unlike the qemu-img version Signed-off-by: Maxim Levitsky Reviewed-by: Daniel P. Berrangé Reviewed-by: Max Reitz Message-Id: <20200608094030.670121-14-mlevitsk@redhat.com> Signed-off-by: Max Reitz --- qapi/block-core.json | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) (limited to 'qapi/block-core.json') diff --git a/qapi/block-core.json b/qapi/block-core.json index cd679ad435..b20332e592 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -4686,6 +4686,19 @@ 'data': { } } +## +# @BlockdevAmendOptionsQcow2: +# +# Driver specific image amend options for qcow2. +# For now, only encryption options can be amended +# +# @encrypt Encryption options to be amended +# +# Since: 5.1 +## +{ 'struct': 'BlockdevAmendOptionsQcow2', + 'data': { '*encrypt': 'QCryptoBlockAmendOptions' } } + ## # @BlockdevAmendOptions: # @@ -4700,7 +4713,8 @@ 'driver': 'BlockdevDriver' }, 'discriminator': 'driver', 'data': { - 'luks': 'BlockdevAmendOptionsLUKS' } } + 'luks': 'BlockdevAmendOptionsLUKS', + 'qcow2': 'BlockdevAmendOptionsQcow2' } } ## # @x-blockdev-amend: -- cgit v1.2.3