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qmp qemu-ga: Revert change that accidentally made qemu-ga accept "id" 

Commit cf869d5317 "qmp: support out-of-band (oob) execution" changed
how we check "id":

    Note that in the patch I exported qmp_dispatch_check_obj() to be
    used to check the request earlier, and at the same time allowed
    "id" field to be there since actually we always allow that.

The part after "and" is ill-advised: it makes qemu-ga accept and
ignore "id".  Revert.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180703085358.13941-10-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2018-07-03 10:53:35 +02:00
parent b5f8431040
commit 0fa39d0b03
3 changed files with 13 additions and 16 deletions
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14
monitor.c
View File

@ -4264,7 +4264,7 @@ static void monitor_qmp_bh_dispatcher(void *data)
static void handle_qmp_command(JSONMessageParser *parser, GQueue *tokens)
{
QObject *req, *id = NULL;
QDict *qdict = NULL;
QDict *qdict;
MonitorQMP *mon_qmp = container_of(parser, MonitorQMP, parser);
Monitor *mon = container_of(mon_qmp, Monitor, qmp);
Error *err = NULL;
@ -4279,6 +4279,12 @@ static void handle_qmp_command(JSONMessageParser *parser, GQueue *tokens)
goto err;
}
qdict = qobject_to(QDict, req);
if (qdict) {
id = qobject_ref(qdict_get(qdict, "id"));
qdict_del(qdict, "id");
} /* else will fail qmp_dispatch() */
/* Check against the request in general layout */
qdict = qmp_dispatch_check_obj(req, &err);
if (!qdict) {
@ -4290,16 +4296,12 @@ static void handle_qmp_command(JSONMessageParser *parser, GQueue *tokens)
goto err;
}
id = qdict_get(qdict, "id");
req_obj = g_new0(QMPRequest, 1);
req_obj->mon = mon;
req_obj->id = qobject_ref(id);
req_obj->id = id;
req_obj->req = req;
req_obj->need_resume = false;
qdict_del(qdict, "id");
if (qmp_is_oob(qdict)) {
/* Out-of-band (OOB) requests are executed directly in parser. */
trace_monitor_qmp_cmd_out_of_band(qobject_get_try_str(req_obj->id)

2
qapi/qmp-dispatch.c
View File

@ -52,8 +52,6 @@ QDict *qmp_dispatch_check_obj(const QObject *request, Error **errp)
"QMP input member 'arguments' must be an object");
return NULL;
}
} else if (!strcmp(arg_name, "id")) {
continue;
} else if (!strcmp(arg_name, "control")) {
if (qobject_type(arg_obj) != QTYPE_QDICT) {
error_setg(errp,

13
tests/test-qga.c
View File

@ -229,19 +229,16 @@ static void test_qga_ping(gconstpointer fix)
static void test_qga_invalid_id(gconstpointer fix)
{
/*
* FIXME "id" is ignored; it should either be repeated in the
* reply, or rejected on input
*/
const TestFixture *fixture = fix;
QDict *ret, *val;
QDict *ret, *error;
const char *class;
ret = qmp_fd(fixture->fd, "{'execute': 'guest-ping', 'id': 1}");
g_assert_nonnull(ret);
qmp_assert_no_error(ret);
val = qdict_get_qdict(ret, "return");
g_assert(!qdict_haskey(val, "id"));
error = qdict_get_qdict(ret, "error");
class = qdict_get_try_str(error, "class");
g_assert_cmpstr(class, ==, "GenericError");
qobject_unref(ret);
}