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conf: disk: Sanitize parsing of disk format

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This commit is contained in:
Peter Krempa 2016-04-20 15:36:05 +02:00
parent f3f931b6c0
commit 8a3dea1f11
1 changed files with 14 additions and 16 deletions
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30
src/conf/domain_conf.c
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@ -6919,7 +6919,7 @@ static int
virDomainDiskDefDriverParseXML(virDomainDiskDefPtr def,
xmlNodePtr cur)
{
char *driverType = NULL;
char *tmp = NULL;
char *cachetag = NULL;
char *error_policy = NULL;
char *rerror_policy = NULL;
@ -6932,13 +6932,6 @@ virDomainDiskDefDriverParseXML(virDomainDiskDefPtr def,
int ret = -1;
def->src->driverName = virXMLPropString(cur, "name");
driverType = virXMLPropString(cur, "type");
if (STREQ_NULLABLE(driverType, "aio")) {
/* In-place conversion to "raw", for Xen back-compat */
driverType[0] = 'r';
driverType[1] = 'a';
driverType[2] = 'w';
}
cachetag = virXMLPropString(cur, "cache");
error_policy = virXMLPropString(cur, "error_policy");
rerror_policy = virXMLPropString(cur, "rerror_policy");
@ -7033,20 +7026,25 @@ virDomainDiskDefDriverParseXML(virDomainDiskDefPtr def,
}
}
if (driverType) {
def->src->format = virStorageFileFormatTypeFromString(driverType);
if (def->src->format <= 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unknown driver format value '%s'"),
driverType);
goto cleanup;
if ((tmp = virXMLPropString(cur, "type"))) {
if (STREQ(tmp, "aio")) {
/* Xen back-compat */
def->src->format = VIR_STORAGE_FILE_RAW;
} else {
if ((def->src->format = virStorageFileFormatTypeFromString(tmp)) <= 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unknown driver format value '%s'"), tmp);
goto cleanup;
}
}
VIR_FREE(tmp);
}
ret = 0;
cleanup:
VIR_FREE(driverType);
VIR_FREE(tmp);
VIR_FREE(cachetag);
VIR_FREE(error_policy);
VIR_FREE(rerror_policy);