[libvirt] [PATCH 11/11] conf: Disallow new snapshots to use all white space as name
John Ferlan
jferlan at redhat.com
Mon Jul 30 19:45:24 UTC 2018
https://bugzilla.redhat.com/show_bug.cgi?id=1107420
Add a new define/create flag VIR_DOMAIN_SNAPSHOT_PARSE_VALIDATE_NAME
to disallow new snapshots to be defined/created using a name
comprised entirely of spaces.
Alter the domainsnapshotxml2xmltest to add a test in order to prove the
failure occurs.
Signed-off-by: John Ferlan <jferlan at redhat.com>
---
Looks like the original send had a network glitch right at this patch
so just making sure 11/11 makes it to the list (and hopefully as a
reply to the 0/11 cover).
src/conf/snapshot_conf.c | 7 ++++
src/conf/snapshot_conf.h | 1 +
src/qemu/qemu_driver.c | 3 +-
.../name_whitespace.xml | 3 ++
tests/domainsnapshotxml2xmltest.c | 38 ++++++++++++++-----
5 files changed, 42 insertions(+), 10 deletions(-)
create mode 100644 tests/domainsnapshotxml2xmlin/name_whitespace.xml
diff --git a/src/conf/snapshot_conf.c b/src/conf/snapshot_conf.c
index adba149241..2897a7edf5 100644
--- a/src/conf/snapshot_conf.c
+++ b/src/conf/snapshot_conf.c
@@ -235,6 +235,13 @@ virDomainSnapshotDefParse(xmlXPathContextPtr ctxt,
goto cleanup;
}
+ if ((flags & VIR_DOMAIN_SNAPSHOT_PARSE_VALIDATE_NAME) &&
+ virStringIsEmpty(def->name)) {
+ virReportError(VIR_ERR_XML_ERROR, "%s",
+ ("name must contain at least one non blank character"));
+ goto cleanup;
+ }
+
def->description = virXPathString("string(./description)", ctxt);
if (flags & VIR_DOMAIN_SNAPSHOT_PARSE_REDEFINE) {
diff --git a/src/conf/snapshot_conf.h b/src/conf/snapshot_conf.h
index 20a42bd572..2599c6b57f 100644
--- a/src/conf/snapshot_conf.h
+++ b/src/conf/snapshot_conf.h
@@ -101,6 +101,7 @@ typedef enum {
VIR_DOMAIN_SNAPSHOT_PARSE_DISKS = 1 << 1,
VIR_DOMAIN_SNAPSHOT_PARSE_INTERNAL = 1 << 2,
VIR_DOMAIN_SNAPSHOT_PARSE_OFFLINE = 1 << 3,
+ VIR_DOMAIN_SNAPSHOT_PARSE_VALIDATE_NAME = 1 << 4,
} virDomainSnapshotParseFlags;
virDomainSnapshotDefPtr virDomainSnapshotDefParseString(const char *xmlStr,
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 37f10d286e..b29faffee1 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -15279,7 +15279,8 @@ qemuDomainSnapshotCreateXML(virDomainPtr domain,
virDomainSnapshotDefPtr def = NULL;
bool update_current = true;
bool redefine = flags & VIR_DOMAIN_SNAPSHOT_CREATE_REDEFINE;
- unsigned int parse_flags = VIR_DOMAIN_SNAPSHOT_PARSE_DISKS;
+ unsigned int parse_flags = VIR_DOMAIN_SNAPSHOT_PARSE_DISKS |
+ VIR_DOMAIN_SNAPSHOT_PARSE_VALIDATE_NAME;
virDomainSnapshotObjPtr other = NULL;
int align_location = VIR_DOMAIN_SNAPSHOT_LOCATION_INTERNAL;
bool align_match = true;
diff --git a/tests/domainsnapshotxml2xmlin/name_whitespace.xml b/tests/domainsnapshotxml2xmlin/name_whitespace.xml
new file mode 100644
index 0000000000..901bcce62f
--- /dev/null
+++ b/tests/domainsnapshotxml2xmlin/name_whitespace.xml
@@ -0,0 +1,3 @@
+<domainsnapshot>
+ <name> </name>
+</domainsnapshot>
diff --git a/tests/domainsnapshotxml2xmltest.c b/tests/domainsnapshotxml2xmltest.c
index 5ea0f325de..046e8f7525 100644
--- a/tests/domainsnapshotxml2xmltest.c
+++ b/tests/domainsnapshotxml2xmltest.c
@@ -74,14 +74,16 @@ testCompareXMLToXMLFiles(const char *inxml,
const char *outxml,
const char *uuid,
bool internal,
- bool redefine)
+ bool redefine,
+ bool expect_parse_fail)
{
char *inXmlData = NULL;
char *outXmlData = NULL;
char *actual = NULL;
int ret = -1;
virDomainSnapshotDefPtr def = NULL;
- unsigned int flags = VIR_DOMAIN_SNAPSHOT_PARSE_DISKS;
+ unsigned int flags = VIR_DOMAIN_SNAPSHOT_PARSE_DISKS |
+ VIR_DOMAIN_SNAPSHOT_PARSE_VALIDATE_NAME;
if (internal)
flags |= VIR_DOMAIN_SNAPSHOT_PARSE_INTERNAL;
@@ -97,8 +99,15 @@ testCompareXMLToXMLFiles(const char *inxml,
if (!(def = virDomainSnapshotDefParseString(inXmlData, driver.caps,
driver.xmlopt,
- flags)))
+ flags))) {
+ if (expect_parse_fail) {
+ VIR_TEST_DEBUG("Got expected parse failure msg='%s'",
+ virGetLastErrorMessage());
+ virResetLastError();
+ ret = 0;
+ }
goto cleanup;
+ }
if (!(actual = virDomainSnapshotDefFormat(uuid, def, driver.caps,
driver.xmlopt,
@@ -135,6 +144,7 @@ struct testInfo {
const char *uuid;
bool internal;
bool redefine;
+ bool expect_parse_fail;
};
@@ -144,7 +154,8 @@ testCompareXMLToXMLHelper(const void *data)
const struct testInfo *info = data;
return testCompareXMLToXMLFiles(info->inxml, info->outxml, info->uuid,
- info->internal, info->redefine);
+ info->internal, info->redefine,
+ info->expect_parse_fail);
}
@@ -168,11 +179,13 @@ mymain(void)
}
-# define DO_TEST(prefix, name, inpath, outpath, uuid, internal, redefine) \
+# define DO_TEST(prefix, name, inpath, outpath, uuid, internal, redefine, \
+ expect_parse_fail) \
do { \
const struct testInfo info = {abs_srcdir "/" inpath "/" name ".xml", \
abs_srcdir "/" outpath "/" name ".xml", \
- uuid, internal, redefine}; \
+ uuid, internal, redefine, \
+ expect_parse_fail}; \
if (virTestRun("SNAPSHOT XML-2-XML " prefix " " name, \
testCompareXMLToXMLHelper, &info) < 0) \
ret = -1; \
@@ -181,18 +194,23 @@ mymain(void)
# define DO_TEST_IN(name, uuid) DO_TEST("in->in", name,\
"domainsnapshotxml2xmlin",\
"domainsnapshotxml2xmlin",\
- uuid, false, false)
+ uuid, false, false, false)
+
+# define DO_TEST_IN_PARSE_FAIL(name, uuid) DO_TEST("in->in", name,\
+ "domainsnapshotxml2xmlin",\
+ "domainsnapshotxml2xmlin",\
+ uuid, false, false, true)
# define DO_TEST_OUT(name, uuid, internal) DO_TEST("out->out", name,\
"domainsnapshotxml2xmlout",\
"domainsnapshotxml2xmlout",\
- uuid, internal, true)
+ uuid, internal, true, false)
# define DO_TEST_INOUT(name, uuid, internal, redefine) \
DO_TEST("in->out", name,\
"domainsnapshotxml2xmlin",\
"domainsnapshotxml2xmlout",\
- uuid, internal, redefine)
+ uuid, internal, redefine, false)
/* Unset or set all envvars here that are copied in qemudBuildCommandLine
* using ADD_ENV_COPY, otherwise these tests may fail due to unexpected
@@ -219,6 +237,8 @@ mymain(void)
DO_TEST_IN("description_only", NULL);
DO_TEST_IN("name_only", NULL);
+ DO_TEST_IN_PARSE_FAIL("name_whitespace", NULL);
+
cleanup:
if (testSnapshotXMLVariableLineRegex)
regfree(testSnapshotXMLVariableLineRegex);
--
2.17.1
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