As another convenience to allow using commands that expect a dict as
argument, this patch adds support for foo.bar=value syntax, similar to
command line argument style:

  (QEMU) blockdev-add options.driver=file options.id=drive1 options.filename=...
Signed-off-by: NFam Zheng <famz@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>

qmp-shell hides the QMP wire protocol JSON encoding from the user.  Most
of the time this is helpful and makes the command-line human-friendly.

Some QMP commands take a dict as an argument.  In order to express this
we need to revert back to JSON notation.

This patch allows JSON dict arguments in qmp-shell so commands like
blockdev-add and nbd-server-start can be invoked:

  (QEMU) blockdev-add options={"driver":"file","id":"drive1",...}

Note that spaces are not allowed since str.split() is used to break up
the command-line arguments first.
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Reviewed-by: NBenoit Canet <benoit@irqsave.net>
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>

Populate it with all scripts stored in QMP/. Also fixes trailing
whitespaces in qmp-shell and qmp.py.
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>

	qmp: fix handling of cmd with equal mark in qmp-shell

    qmp-shell splits the argument and value of input command
	by equal mark("="). But there are commands whose values
	include equal mark themselves, and the json built by
	qmp-shell will not correct. For example, when using NBD as
	the target of block-backup command, the input
	"block-backup target=nbd+unix:///drive0?socket=/tmp/nbd.sock"
	will fail, because the json built will be as follows:

    {
		"execute":"block-backup",
		"arguments":{"target":"nbd+unix:///drive0?socket"}
	}

    Fix it by joining the sections split by equal mark excluding the
	first section in __build_cmd function when the length of sections
	is larger than two.
Signed-off-by: Nzhangleiqiang <zhangleiqiang@huawei.com>
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>

qmp-shell converts only integer arguments and the rest
is assumed to be strings which are faithfully sent as
quoted strings by json. But QEMU refuses to accept qmp
command with boolean argument whose value is escaped
as string.

Fix it by special-casing true/false keywords and store
value as corresponding boolean.
Signed-off-by: NIgor Mammedov <imammedo@redhat.com>
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>

Add a '-p' arg to the QMP/qmp-shell test program, which uses
the python pprint module to pretty-print the dictionary
returned from a command

  $ qmp-shell -p /tmp/qemu
  Welcome to the QMP low-level shell!
  Connected to QEMU 1.1.50

  (QEMU) query-cpus
  {   u'return': [   {   u'CPU': 0,
                         u'current': True,
                         u'halted': True,
                         u'pc': 1048556,
                         u'thread_id': 7108}]}
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>

In which qmp-shell will exclusively use the HMP passthrough feature,
this is useful for testing.

Example:

    # ./qmp-shell -H qmp-sock
    Welcome to the HMP shell!
    Connected to QEMU 0.13.50

    (QEMU) info network
    VLAN 0 devices:
      user.0: net=10.0.2.0, restricted=n
        e1000.0: model=e1000,macaddr=52:54:00:12:34:56
        Devices not on any VLAN:
    (QEMU)
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>

This commit updates the qmp-shell script to use the new interface
introduced by the last commit.

Additionally, the following fixes/features are also introduced:

 o TCP sockets support
 o Update/add documentation
 o Simple command-line completion
 o Fix a number of unhandled errors
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>

As sending "qmp_capabilities" on session start became mandatory, both
python examples were broken.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>

This is a very simple shell written in Python for demonstration
purposes.

Unfortunately it's a bit awkward right now, as the user has
to specify the arguments names and the printed data can be
a raw dictionary or list, like the following example:

(QEMU) pci_add pci_addr=auto type=nic
{u'slot': 5, u'bus': 0, u'domain': 0, u'function': 0}
(QEMU)

It's worth to note that the shell is broken into two files.
One is the shell itself, the other is the QMP class which
handles the communication with QEMU.
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>