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15b5902db9
It was pointed out here: https://bugzilla.redhat.com/show_bug.cgi?id=1331796#c4 that we shouldn't be adding a "no-resolv" to the dnsmasq.conf file for a network if there isn't any <forwarder> element that specifies an IP address but no qualifying domain. If there is such an element, it will handle all DNS requests that weren't otherwise handled by one of the forwarder entries with a matching domain attribute. If not, then DNS requests that don't match the domain of any <forwarder> would not be resolved if we added no-resolv. So, only add "no-resolv" when there is at least one <forwarder> element that specifies an IP address but no qualifying domain.
155 lines
4.3 KiB
C
155 lines
4.3 KiB
C
#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include "internal.h"
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#include "testutils.h"
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#include "network_conf.h"
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#include "vircommand.h"
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#include "viralloc.h"
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#include "network/bridge_driver.h"
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#include "virstring.h"
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#define VIR_FROM_THIS VIR_FROM_NONE
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static int
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testCompareXMLToConfFiles(const char *inxml, const char *outconf, dnsmasqCapsPtr caps)
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{
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char *actual = NULL;
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int ret = -1;
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virNetworkDefPtr dev = NULL;
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virNetworkObjPtr obj = NULL;
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virCommandPtr cmd = NULL;
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char *pidfile = NULL;
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dnsmasqContext *dctx = NULL;
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if (!(dev = virNetworkDefParseFile(inxml)))
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goto fail;
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if (!(obj = virNetworkObjNew()))
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goto fail;
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obj->def = dev;
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dctx = dnsmasqContextNew(dev->name, "/var/lib/libvirt/dnsmasq");
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if (dctx == NULL)
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goto fail;
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if (networkDnsmasqConfContents(obj, pidfile, &actual, dctx, caps) < 0)
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goto fail;
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/* Any changes to this function ^^ should be reflected here too. */
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#ifndef __linux__
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char * tmp;
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if (!(tmp = virStringReplace(actual,
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"except-interface=lo0\n",
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"except-interface=lo\n")))
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goto fail;
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VIR_FREE(actual);
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actual = tmp;
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tmp = NULL;
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#endif
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if (virTestCompareToFile(actual, outconf) < 0)
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goto fail;
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ret = 0;
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fail:
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VIR_FREE(actual);
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VIR_FREE(pidfile);
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virCommandFree(cmd);
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virObjectUnref(obj);
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dnsmasqContextFree(dctx);
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return ret;
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}
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typedef struct {
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const char *name;
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dnsmasqCapsPtr caps;
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} testInfo;
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static int
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testCompareXMLToConfHelper(const void *data)
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{
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int result = -1;
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const testInfo *info = data;
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char *inxml = NULL;
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char *outconf = NULL;
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if (virAsprintf(&inxml, "%s/networkxml2confdata/%s.xml",
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abs_srcdir, info->name) < 0 ||
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virAsprintf(&outconf, "%s/networkxml2confdata/%s.conf",
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abs_srcdir, info->name) < 0) {
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goto cleanup;
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}
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result = testCompareXMLToConfFiles(inxml, outconf, info->caps);
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cleanup:
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VIR_FREE(inxml);
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VIR_FREE(outconf);
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return result;
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}
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static int
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mymain(void)
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{
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int ret = 0;
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dnsmasqCapsPtr restricted
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= dnsmasqCapsNewFromBuffer("Dnsmasq version 2.48", DNSMASQ);
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dnsmasqCapsPtr full
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= dnsmasqCapsNewFromBuffer("Dnsmasq version 2.63\n--bind-dynamic", DNSMASQ);
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dnsmasqCapsPtr dhcpv6
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= dnsmasqCapsNewFromBuffer("Dnsmasq version 2.64\n--bind-dynamic", DNSMASQ);
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#define DO_TEST(xname, xcaps) \
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do { \
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static testInfo info; \
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\
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info.name = xname; \
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info.caps = xcaps; \
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if (virTestRun("Network XML-2-Conf " xname, \
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testCompareXMLToConfHelper, &info) < 0) { \
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ret = -1; \
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} \
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} while (0)
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DO_TEST("isolated-network", restricted);
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DO_TEST("netboot-network", restricted);
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DO_TEST("netboot-proxy-network", restricted);
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DO_TEST("nat-network-dns-srv-record-minimal", restricted);
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DO_TEST("nat-network-name-with-quotes", restricted);
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DO_TEST("routed-network", full);
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DO_TEST("routed-network-no-dns", full);
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DO_TEST("open-network", full);
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DO_TEST("nat-network", dhcpv6);
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DO_TEST("nat-network-dns-txt-record", full);
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DO_TEST("nat-network-dns-srv-record", full);
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DO_TEST("nat-network-dns-hosts", full);
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DO_TEST("nat-network-dns-forward-plain", full);
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DO_TEST("nat-network-dns-forwarders", full);
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DO_TEST("nat-network-dns-forwarder-no-resolv", full);
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DO_TEST("nat-network-dns-local-domain", full);
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DO_TEST("dhcp6-network", dhcpv6);
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DO_TEST("dhcp6-nat-network", dhcpv6);
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DO_TEST("dhcp6host-routed-network", dhcpv6);
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DO_TEST("ptr-domains-auto", dhcpv6);
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virObjectUnref(dhcpv6);
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virObjectUnref(full);
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virObjectUnref(restricted);
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return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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VIRT_TEST_MAIN(mymain)
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