From d8f04a096c6c5ec035c17ef41e1af1801beb27a6 Mon Sep 17 00:00:00 2001
From: Markus Armbruster <armbru@redhat.com>
Date: Mon, 18 Jun 2018 08:43:21 +0200
Subject: [PATCH 023/268] block: Make remaining uses of qobject input visitor
more robust
RH-Author: Markus Armbruster <armbru@redhat.com>
Message-id: <20180618084330.30009-15-armbru@redhat.com>
Patchwork-id: 80730
O-Subject: [RHEL-7.6 qemu-kvm-rhev PATCH 14/23] block: Make remaining uses of qobject input visitor more robust
Bugzilla: 1557995
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Jeffrey Cody <jcody@redhat.com>
RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
Remaining uses of qobject_input_visitor_new_keyval() in the block
subsystem:
* block_crypto_open_opts_init()
Currently doesn't visit any non-string scalars, thus safe. It's
called from
- block_crypto_open_luks()
Creates the QDict with qemu_opts_to_qdict_filtered(), which
creates only string scalars, but has a TODO asking for other types.
- qcow_open()
- qcow2_open(), qcow2_co_invalidate_cache(), qcow2_reopen_prepare()
* block_crypto_create_opts_init(), called from
- block_crypto_co_create_opts_luks()
Also creates the QDict with qemu_opts_to_qdict_filtered().
* vdi_co_create_opts()
Also creates the QDict with qemu_opts_to_qdict_filtered().
Replace these uses by qobject_input_visitor_new_flat_confused() for
robustness. This adds crumpling. Right now, that's a no-op, but if
we ever extend these things in non-flat ways, crumpling will be
needed.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit f853465aacb45dbb07e4cc9815e39b55e10dc690)
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
block/crypto.c | 12 +++++++++---
block/vdi.c | 8 ++++++--
2 files changed, 15 insertions(+), 5 deletions(-)
diff --git a/block/crypto.c b/block/crypto.c
index 7e7ad2d..f5151f4 100644
--- a/block/crypto.c
+++ b/block/crypto.c
@@ -21,11 +21,11 @@
#include "qemu/osdep.h"
#include "block/block_int.h"
+#include "block/qdict.h"
#include "sysemu/block-backend.h"
#include "crypto/block.h"
#include "qapi/opts-visitor.h"
#include "qapi/qapi-visit-crypto.h"
-#include "qapi/qmp/qdict.h"
#include "qapi/qobject-input-visitor.h"
#include "qapi/error.h"
#include "qemu/option.h"
@@ -159,7 +159,10 @@ block_crypto_open_opts_init(QCryptoBlockFormat format,
ret = g_new0(QCryptoBlockOpenOptions, 1);
ret->format = format;
- v = qobject_input_visitor_new_keyval(QOBJECT(opts));
+ v = qobject_input_visitor_new_flat_confused(opts, &local_err);
+ if (local_err) {
+ goto out;
+ }
visit_start_struct(v, NULL, NULL, 0, &local_err);
if (local_err) {
@@ -210,7 +213,10 @@ block_crypto_create_opts_init(QCryptoBlockFormat format,
ret = g_new0(QCryptoBlockCreateOptions, 1);
ret->format = format;
- v = qobject_input_visitor_new_keyval(QOBJECT(opts));
+ v = qobject_input_visitor_new_flat_confused(opts, &local_err);
+ if (local_err) {
+ goto out;
+ }
visit_start_struct(v, NULL, NULL, 0, &local_err);
if (local_err) {
diff --git a/block/vdi.c b/block/vdi.c
index 96a22b8..41859a8 100644
--- a/block/vdi.c
+++ b/block/vdi.c
@@ -51,10 +51,10 @@
#include "qemu/osdep.h"
#include "qapi/error.h"
-#include "qapi/qmp/qdict.h"
#include "qapi/qobject-input-visitor.h"
#include "qapi/qapi-visit-block-core.h"
#include "block/block_int.h"
+#include "block/qdict.h"
#include "sysemu/block-backend.h"
#include "qemu/module.h"
#include "qemu/option.h"
@@ -933,7 +933,11 @@ static int coroutine_fn vdi_co_create_opts(const char *filename, QemuOpts *opts,
}
/* Get the QAPI object */
- v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
+ v = qobject_input_visitor_new_flat_confused(qdict, errp);
+ if (!v) {
+ ret = -EINVAL;
+ goto done;
+ }
visit_type_BlockdevCreateOptions(v, NULL, &create_options, &local_err);
visit_free(v);
--
1.8.3.1