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Don't ignore errors parsing nwfilter rules

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For inexplicable reasons, the nwfilter XML parser is intentionally
ignoring errors that arise during parsing. As well as meaning that
users don't get any feedback on their XML mistakes, this will lead
it to silently drop data in OOM conditions.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrange 2013-09-25 15:26:58 +01:00
parent 06bfe6fe2b
commit 4f2094346d
2 changed files with 14 additions and 16 deletions
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14
src/conf/nwfilter_conf.c
View File

@ -2369,9 +2369,7 @@ virNWFilterRuleParse(xmlNodePtr node)
if (virNWFilterRuleDetailsParse(cur,
ret,
virAttr[i].att) < 0) {
/* we ignore malformed rules
goto err_exit;
*/
}
break;
}
@ -2573,11 +2571,13 @@ virNWFilterDefParseXML(xmlXPathContextPtr ctxt) {
if (VIR_ALLOC(entry) < 0)
goto cleanup;
/* ignore malformed rule and include elements */
if (xmlStrEqual(curr->name, BAD_CAST "rule"))
entry->rule = virNWFilterRuleParse(curr);
else if (xmlStrEqual(curr->name, BAD_CAST "filterref"))
entry->include = virNWFilterIncludeParse(curr);
if (xmlStrEqual(curr->name, BAD_CAST "rule")) {
if (!(entry->rule = virNWFilterRuleParse(curr)))
goto cleanup;
} else if (xmlStrEqual(curr->name, BAD_CAST "filterref")) {
if (!(entry->include = virNWFilterIncludeParse(curr)))
goto cleanup;
}
if (entry->rule || entry->include) {
if (VIR_REALLOC_N(ret->filterEntries, ret->nentries+1) < 0) {

12
tests/nwfilterxml2xmltest.c
View File

@ -36,15 +36,12 @@ testCompareXMLToXMLFiles(const char *inxml, const char *outxml,
virResetLastError();
if (!(dev = virNWFilterDefParseString(NULL, inXmlData)))
goto fail;
if (!!virGetLastError() != expect_error)
goto fail;
if (!(dev = virNWFilterDefParseString(NULL, inXmlData))) {
if (expect_error) {
/* need to suppress the errors */
virResetLastError();
goto done;
}
goto fail;
}
if (!(actual = virNWFilterDefFormat(dev)))
@ -55,6 +52,7 @@ testCompareXMLToXMLFiles(const char *inxml, const char *outxml,
goto fail;
}
done:
ret = 0;
fail: