void
virNetDevVlanFree(virNetDevVlanPtr vlan)
{
if (vlan)
virNetDevVlanClear(vlan);
VIR_FREE(vlan);
}
int
virNetDevVlanParse(xmlNodePtr node, xmlXPathContextPtr ctxt, virNetDevVlanPtr def)
{
int ret = -1;
xmlNodePtr save = ctxt->node;
char *trunk = NULL;
char *nativeMode = NULL;
xmlNodePtr *tagNodes = NULL;
int nTags;
size_t i;
ctxt->node = node;
nTags = virXPathNodeSet("./tag", ctxt, &tagNodes);
if (nTags < 0)
goto cleanup;
if (nTags == 0) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("missing tag id - each <vlan> must have "
"at least one <tag id='n'/> subelement"));
goto cleanup;
}
if (VIR_ALLOC_N(def->tag, nTags) < 0)
goto cleanup;
def->nativeMode = 0;
def->nativeTag = 0;
for (i = 0; i < nTags; i++) {
unsigned long id;
ctxt->node = tagNodes[i];
if (virXPathULong("string(./@id)", ctxt, &id) < 0) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("missing or invalid vlan tag id attribute"));
goto cleanup;
}
if (id > 4095) {
virReportError(VIR_ERR_XML_ERROR,
_("vlan tag id %lu too large (maximum 4095)"), id);
goto cleanup;
}
if ((nativeMode = virXPathString("string(./@nativeMode)", ctxt))) {
if (def->nativeMode != 0) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("duplicate native vlan setting"));
goto cleanup;
}
if ((def->nativeMode
= virNativeVlanModeTypeFromString(nativeMode)) <= 0) {
virReportError(VIR_ERR_XML_ERROR,
_("Invalid \"nativeMode='%s'\" "
"in vlan <tag> element"),
nativeMode);
goto cleanup;
}
VIR_FREE(nativeMode);
def->nativeTag = id;
}
def->tag[i] = id;
}
def->nTags = nTags;
/* now that we know how many tags there are, look for an explicit
* trunk setting.
*/
if (nTags > 1)
def->trunk = true;
ctxt->node = node;
if ((trunk = virXPathString("string(./@trunk)", ctxt)) != NULL) {
def->trunk = STRCASEEQ(trunk, "yes");
if (!def->trunk) {
if (nTags > 1) {
virReportError(VIR_ERR_XML_ERROR,
_("invalid \"trunk='%s'\" in <vlan> - trunk='yes' "
"is required for more than one vlan tag"), trunk);
goto cleanup;
}
if (def->nativeMode != 0) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("invalid configuration in <vlan> - \"trunk='no'\" is "
"not allowed with a native vlan id"));
goto cleanup;
}
/* allow (but discard) "trunk='no' if there is a single tag */
if (STRCASENEQ(trunk, "no")) {
virReportError(VIR_ERR_XML_ERROR,
_("invalid \"trunk='%s'\" in <vlan> "
"- must be yes or no"), trunk);
goto cleanup;
}
}
}
ret = 0;
cleanup:
ctxt->node = save;
VIR_FREE(tagNodes);
VIR_FREE(trunk);
VIR_FREE(nativeMode);
if (ret < 0)
virNetDevVlanClear(def);
return ret;
}
