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2020-08-21meson: convert qemu-storage-daemonPaolo Bonzini1-343/+0
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-07-03qemu-storage-daemon: add missing cleanup callsStefan Hajnoczi1-0/+4
Several components used by qemu-storage-daemon have cleanup functions that aren't called. Keep the "valgrind --leak-check=full" as clean as possible by invoking the necessary cleanup functions. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20200619101132.2401756-3-stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-07-03qemu-storage-daemon: remember to add qemu_object_optsStefan Hajnoczi1-0/+1
The --object option is supported by qemu-storage-daemon but the qemu_object_opts QemuOptsList wasn't being added. As a result calls to qemu_find_opts("object") failed with "There is no option group 'object'". This patch fixes the object-del QMP command. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20200619101132.2401756-2-stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-04-30qemu-storage-daemon: Fix non-string --object propertiesKevin Wolf1-3/+1
After processing the option string with the keyval parser, we get a QDict that contains only strings. This QDict must be fed to a keyval visitor which converts the strings into the right data types. qmp_object_add(), however, uses the normal QObject input visitor, which expects a QDict where all properties already have the QType that matches the data type required by the QOM object type. Change the --object implementation in qemu-storage-daemon so that it doesn't call qmp_object_add(), but calls user_creatable_add_dict() directly instead and pass it a new keyval boolean that decides which visitor must be used. Reported-by: Coiby Xu <coiby.xu@gmail.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-06qemu-storage-daemon: Add --monitor optionKevin Wolf1-2/+45
This adds and parses the --monitor option, so that a QMP monitor can be used in the storage daemon. The monitor offers commands defined in the QAPI schema at storage-daemon/qapi/qapi-schema.json. The --monitor options currently allows to create multiple monitors with the same ID. This part of the interface is considered unstable. We will reject such configurations as soon as we have a design for the monitor subsystem to perform these checks. (In the system emulator, we depend on QemuOpts rejecting duplicate IDs.) Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20200224143008.13362-21-kwolf@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-06qemu-storage-daemon: Add --chardev optionKevin Wolf1-0/+24
This adds a --chardev option to the storage daemon that works the same as the -chardev option of the system emulator. The syntax of the --chardev option is still considered unstable. We want to QAPIfy it and will potentially make changes to its syntax while converting it. However, we haven't decided yet on a design for the QAPIfication, so QemuOpts will have to do for now. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20200224143008.13362-14-kwolf@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-06qemu-storage-daemon: Add main loopKevin Wolf1-0/+13
Instead of exiting after processing all command line options, start a main loop and keep processing events until exit is requested with a signal (e.g. SIGINT). Now qemu-storage-daemon can be used as an alternative for qemu-nbd that provides a few features that were previously only available from QMP, such as access to options only available with -blockdev and the socket types 'vsock' and 'fd'. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20200224143008.13362-13-kwolf@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-06qemu-storage-daemon: Add --export optionKevin Wolf1-0/+31
Add a --export option to qemu-storage-daemon to export a block node. For now, only NBD exports are implemented. Apart from the 'type' option (which is the implied key), it maps the arguments for nbd-server-add to the command line. Example: --export nbd,device=disk,name=test-export,writable=on Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20200224143008.13362-12-kwolf@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-06qemu-storage-daemon: Add --nbd-server optionKevin Wolf1-1/+25
Add a --nbd-server option to qemu-storage-daemon to start the built-in NBD server right away. It maps the arguments for nbd-server-start to the command line, with the exception that it uses SocketAddress instead of SocketAddressLegacy: New interfaces shouldn't use legacy types, and the additional nesting would be nasty on the command line. Example (only with required options): --nbd-server addr.type=inet,addr.host=localhost,addr.port=10809 Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20200224143008.13362-10-kwolf@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-06qemu-storage-daemon: Add --object optionKevin Wolf1-0/+47
Add a command line option to create user-creatable QOM objects. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20200224143008.13362-9-kwolf@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-06qemu-storage-daemon: Add --blockdev optionKevin Wolf1-0/+31
This adds a --blockdev option to the storage daemon that works the same as the -blockdev option of the system emulator. In order to be able to link with blockdev.o, we also need to change stream.o from common-obj to block-obj, which is where all other block jobs already are. In contrast to the system emulator, qemu-storage-daemon options will be processed in the order they are given. The user needs to take care to refer to other objects only after defining them. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20200224143008.13362-7-kwolf@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-06qemu-storage-daemon: Add barebone toolKevin Wolf1-0/+127
This adds a new binary qemu-storage-daemon that doesn't yet do more than some typical initialisation for tools and parsing the basic command options --version, --help and --trace. Even though this doesn't add any options yet that create things (like --object or --blockdev), already document that we're planning to process them in the order they are given on the command line rather than trying (and failing, like vl.c) to resolve dependencies between options automatically. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20200224143008.13362-2-kwolf@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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