libvirt/SOURCES/libvirt-virStorageSourcePar...

79 lines
3.1 KiB
Diff

From 32d58910c9d5a775315a42a76666844927c4dad1 Mon Sep 17 00:00:00 2001
Message-Id: <32d58910c9d5a775315a42a76666844927c4dad1@dist-git>
From: Peter Krempa <pkrempa@redhat.com>
Date: Wed, 19 Feb 2020 15:10:26 +0100
Subject: [PATCH] virStorageSourceParseBackingJSONRaw: Parse 'offset' and
'size' attributes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
If the parsed 'raw' format JSON string has 'offset' or 'size' attributes
parse them as the format slice.
https://bugzilla.redhat.com/show_bug.cgi?id=1791788
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
(cherry picked from commit e8a819e87f806e6c6690614c40dbeab0bd2e800e)
Message-Id: <88f7d393b22949a8d6afdae44f8215aa06e65329.1582120424.git.pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
---
src/util/virstoragefile.c | 20 ++++++++++++++++++++
tests/virstoragetest.c | 6 +++++-
2 files changed, 25 insertions(+), 1 deletion(-)
diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c
index 0be4168d6e..fcbc97d96a 100644
--- a/src/util/virstoragefile.c
+++ b/src/util/virstoragefile.c
@@ -3551,8 +3551,28 @@ virStorageSourceParseBackingJSONRaw(virStorageSourcePtr src,
const char *jsonstr,
int opaque G_GNUC_UNUSED)
{
+ bool has_offset = virJSONValueObjectHasKey(json, "offset");
+ bool has_size = virJSONValueObjectHasKey(json, "size");
virJSONValuePtr file;
+ if (has_offset || has_size) {
+ src->sliceStorage = g_new0(virStorageSourceSlice, 1);
+
+ if (has_offset &&
+ virJSONValueObjectGetNumberUlong(json, "offset", &src->sliceStorage->offset) < 0) {
+ virReportError(VIR_ERR_INVALID_ARG, "%s",
+ _("malformed 'offset' property of 'raw' driver"));
+ return -1;
+ }
+
+ if (has_size &&
+ virJSONValueObjectGetNumberUlong(json, "size", &src->sliceStorage->size) < 0) {
+ virReportError(VIR_ERR_INVALID_ARG, "%s",
+ _("malformed 'size' property of 'raw' driver"));
+ return -1;
+ }
+ }
+
/* 'raw' is a format driver so it can have protocol driver children */
if (!(file = virJSONValueObjectGetObject(json, "file"))) {
virReportError(VIR_ERR_INVALID_ARG,
diff --git a/tests/virstoragetest.c b/tests/virstoragetest.c
index 25d41f0de4..39040bf4cb 100644
--- a/tests/virstoragetest.c
+++ b/tests/virstoragetest.c
@@ -1600,7 +1600,11 @@ mymain(void)
"\"filename\": \"/tmp/testfle\""
"}"
"}",
- "<source file='/tmp/testfle'/>\n", 0);
+ "<source file='/tmp/testfle'>\n"
+ " <slices>\n"
+ " <slice type='storage' offset='10752' size='4063232'/>\n"
+ " </slices>\n"
+ "</source>\n", 0);
#endif /* WITH_YAJL */
--
2.25.0