6:07 p.m.
The errors raised in virNodeDeviceCapVPDParseCustomFields were actually
ignored by continuing the parse rather than raised.
Rather than just replace 'continue' by 'return -1' this patch refactors
the whole parser to simplify it as well as report reasonable errors.
Parsing of individual fields is done without XPath and is extracted into
a common helper.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/conf/node_device_conf.c | 81 ++++++++++++++++++-------------------
1 file changed, 40 insertions(+), 41 deletions(-)
diff --git a/src/conf/node_device_conf.c b/src/conf/node_device_conf.c
index d7e1a23034..0f2c341967 100644
--- a/src/conf/node_device_conf.c
+++ b/src/conf/node_device_conf.c
@@ -953,63 +953,62 @@ virNodeDevCapMdevTypesParseXML(xmlXPathContextPtr ctxt,
return ret;
}
+
static int
-virNodeDeviceCapVPDParseCustomFields(xmlXPathContextPtr ctxt, virPCIVPDResource *res,
bool readOnly)
+virNodeDeviceCapVPDParseCustomFieldOne(xmlNodePtr node,
+ virPCIVPDResource *res,
+ bool read_only,
+ const char keyword_prefix)
+{
+ g_autofree char *value = NULL;
+ g_autofree char *index = NULL;
+ g_autofree char *keyword = NULL;
+
+ if (!(index = virXMLPropStringRequired(node, "index")))
+ return -1;
+
+ if (strlen(index) != 1) {
+ virReportError(VIR_ERR_XML_ERROR,
+ _("'%1$s' 'index' value '%2$s'
malformed"),
+ node->name, index);
+ return -1;
+ }
+
+ keyword = g_strdup_printf("%c%c", keyword_prefix, index[0]);
+
+ if (!(value = virXMLNodeContentString(node)))
+ return -1;
+
+ virPCIVPDResourceUpdateKeyword(res, read_only, keyword, value);
+ return 0;
+}
+
+
+static int
+virNodeDeviceCapVPDParseCustomFields(xmlXPathContextPtr ctxt,
+ virPCIVPDResource *res,
+ bool readOnly)
{
int nfields = -1;
g_autofree xmlNodePtr *nodes = NULL;
size_t i = 0;
- if ((nfields = virXPathNodeSet("./vendor_field[@index]", ctxt, &nodes))
< 0)
+ if ((nfields = virXPathNodeSet("./vendor_field", ctxt, &nodes)) <
0)
return -1;
for (i = 0; i < nfields; i++) {
- g_autofree char *value = NULL;
- g_autofree char *index = NULL;
- VIR_XPATH_NODE_AUTORESTORE(ctxt)
- g_autofree char *keyword = NULL;
-
- ctxt->node = nodes[i];
- if (!(index = virXPathString("string(./@index[1])", ctxt)) ||
- strlen(index) > 1) {
- virReportError(VIR_ERR_XML_ERROR, "%s",
- _("<vendor_field> evaluation has failed"));
- continue;
- }
- if (!(value = virXPathString("string(./text())", ctxt))) {
- virReportError(VIR_ERR_XML_ERROR, "%s",
- _("<vendor_field> value evaluation has failed"));
- continue;
- }
- keyword = g_strdup_printf("V%c", index[0]);
- virPCIVPDResourceUpdateKeyword(res, readOnly, keyword, value);
+ if (virNodeDeviceCapVPDParseCustomFieldOne(nodes[i], res, readOnly, 'V')
< 0)
+ return -1;
}
VIR_FREE(nodes);
if (!readOnly) {
- if ((nfields = virXPathNodeSet("./system_field[@index]", ctxt,
&nodes)) < 0)
+ if ((nfields = virXPathNodeSet("./system_field", ctxt, &nodes))
< 0)
return -1;
for (i = 0; i < nfields; i++) {
- g_autofree char *value = NULL;
- g_autofree char *index = NULL;
- g_autofree char *keyword = NULL;
- VIR_XPATH_NODE_AUTORESTORE(ctxt);
-
- ctxt->node = nodes[i];
- if (!(index = virXPathString("string(./@index[1])", ctxt)) ||
- strlen(index) > 1) {
- virReportError(VIR_ERR_XML_ERROR, "%s",
- _("<system_field> evaluation has failed"));
- continue;
- }
- if (!(value = virXPathString("string(./text())", ctxt))) {
- virReportError(VIR_ERR_XML_ERROR, "%s",
- _("<system_field> value evaluation has
failed"));
- continue;
- }
- keyword = g_strdup_printf("Y%c", index[0]);
- virPCIVPDResourceUpdateKeyword(res, readOnly, keyword, value);
+ if (virNodeDeviceCapVPDParseCustomFieldOne(nodes[i], res, readOnly,
'Y') < 0)
+ return -1;
}
}
--
2.43.0