libvirt/tests/networkxml2conftest.c
Michal Privoznik ec9ee676b4 networkxml2conftest: Use dnsmasqCapsNewFromBinary() to construct caps
DISCLAIMER: dnsmasq capabilities are empty as of v8.0.0-rc1~145.

In a real environment the dnsmasq capabilities are constructed
using dnsmasqCapsNewFromBinary(). We also have
dnsmasqCapsNewFromBuffer() to bypass checks that real code is
doing and just get capabilities object. The latter is used from
test suite.

However, with a little bit of mocking we can test the real life
code. All that's needed is to simulate dnsmasq's output for
--version and --help and mock a stat() that's done in
dnsmasqCapsRefreshInternal().

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2022-01-18 16:18:45 +01:00

196 lines
5.4 KiB
C

#include <config.h>
#include <unistd.h>
#include <sys/types.h>
#include <fcntl.h>
#include "internal.h"
#include "testutils.h"
#include "network_conf.h"
#include "vircommand.h"
#include "viralloc.h"
#include "network/bridge_driver.h"
#include "virstring.h"
#define LIBVIRT_VIRCOMMANDPRIV_H_ALLOW
#include "vircommandpriv.h"
#define VIR_FROM_THIS VIR_FROM_NONE
static int
testCompareXMLToConfFiles(const char *inxml, const char *outconf,
char *outhostsfile, dnsmasqCaps *caps)
{
char *confactual = NULL;
g_autofree char *hostsfileactual = NULL;
int ret = -1;
virNetworkDef *def = NULL;
virNetworkObj *obj = NULL;
g_autofree char *pidfile = NULL;
g_autoptr(dnsmasqContext) dctx = NULL;
g_autoptr(virNetworkXMLOption) xmlopt = NULL;
if (!(xmlopt = networkDnsmasqCreateXMLConf()))
goto fail;
if (!(def = virNetworkDefParseFile(inxml, xmlopt)))
goto fail;
if (!(obj = virNetworkObjNew()))
goto fail;
virNetworkObjSetDef(obj, def);
dctx = dnsmasqContextNew(def->name, "/var/lib/libvirt/dnsmasq");
if (dctx == NULL)
goto fail;
if (networkDnsmasqConfContents(obj, pidfile, &confactual,
&hostsfileactual, dctx, caps) < 0)
goto fail;
/* Any changes to this function ^^ should be reflected here too. */
#ifndef __linux__
char * tmp;
if (!(tmp = virStringReplace(confactual,
"except-interface=lo0\n",
"except-interface=lo\n")))
goto fail;
VIR_FREE(confactual);
confactual = g_steal_pointer(&tmp);
#endif
if (virTestCompareToFile(confactual, outconf) < 0)
goto fail;
if (virFileExists(outhostsfile)) {
if (!hostsfileactual) {
VIR_TEST_DEBUG("%s: hostsfile exists but the configuration did "
"not specify any host", outhostsfile);
goto fail;
} else if (virTestCompareToFile(hostsfileactual, outhostsfile) < 0) {
goto fail;
}
} else if (hostsfileactual) {
VIR_TEST_DEBUG("%s: file does not exist but actual data was expected",
outhostsfile);
goto fail;
}
ret = 0;
fail:
VIR_FREE(confactual);
virNetworkObjEndAPI(&obj);
return ret;
}
typedef struct {
const char *name;
dnsmasqCaps *caps;
} testInfo;
static int
testCompareXMLToConfHelper(const void *data)
{
int result = -1;
const testInfo *info = data;
g_autofree char *inxml = NULL;
g_autofree char *outconf = NULL;
g_autofree char *outhostsfile = NULL;
inxml = g_strdup_printf("%s/networkxml2confdata/%s.xml", abs_srcdir, info->name);
outconf = g_strdup_printf("%s/networkxml2confdata/%s.conf", abs_srcdir, info->name);
outhostsfile = g_strdup_printf("%s/networkxml2confdata/%s.hostsfile", abs_srcdir, info->name);
result = testCompareXMLToConfFiles(inxml, outconf, outhostsfile, info->caps);
return result;
}
static void
buildCapsCallback(const char *const*args,
const char *const*env G_GNUC_UNUSED,
const char *input G_GNUC_UNUSED,
char **output,
char **error G_GNUC_UNUSED,
int *status,
void *opaque G_GNUC_UNUSED)
{
if (STREQ(args[0], "/usr/sbin/dnsmasq") && STREQ(args[1], "--version")) {
*output = g_strdup("Dnsmasq version 2.67\n");
*status = EXIT_SUCCESS;
} else {
*status = EXIT_FAILURE;
}
}
static dnsmasqCaps *
buildCaps(void)
{
g_autoptr(dnsmasqCaps) caps = NULL;
g_autoptr(virCommandDryRunToken) dryRunToken = virCommandDryRunTokenNew();
virCommandSetDryRun(dryRunToken, NULL, true, true, buildCapsCallback, NULL);
caps = dnsmasqCapsNewFromBinary();
return g_steal_pointer(&caps);
}
static int
mymain(void)
{
int ret = 0;
g_autoptr(dnsmasqCaps) full = NULL;
full = buildCaps();
#define DO_TEST(xname, xcaps) \
do { \
static testInfo info; \
\
info.name = xname; \
info.caps = xcaps; \
if (virTestRun("Network XML-2-Conf " xname, \
testCompareXMLToConfHelper, &info) < 0) { \
ret = -1; \
} \
} while (0)
DO_TEST("isolated-network", full);
DO_TEST("netboot-network", full);
DO_TEST("netboot-proxy-network", full);
DO_TEST("nat-network-dns-srv-record-minimal", full);
DO_TEST("nat-network-name-with-quotes", full);
DO_TEST("routed-network", full);
DO_TEST("routed-network-no-dns", full);
DO_TEST("open-network", full);
DO_TEST("nat-network", full);
DO_TEST("nat-network-dns-txt-record", full);
DO_TEST("nat-network-dns-srv-record", full);
DO_TEST("nat-network-dns-hosts", full);
DO_TEST("nat-network-dns-forward-plain", full);
DO_TEST("nat-network-dns-forwarders", full);
DO_TEST("nat-network-dns-forwarder-no-resolv", full);
DO_TEST("nat-network-dns-local-domain", full);
DO_TEST("nat-network-mtu", full);
DO_TEST("dhcp6-network", full);
DO_TEST("dhcp6-nat-network", full);
DO_TEST("dhcp6host-routed-network", full);
DO_TEST("ptr-domains-auto", full);
DO_TEST("dnsmasq-options", full);
DO_TEST("leasetime-seconds", full);
DO_TEST("leasetime-minutes", full);
DO_TEST("leasetime-hours", full);
DO_TEST("leasetime-infinite", full);
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIR_TEST_MAIN_PRELOAD(mymain,
VIR_TEST_MOCK("virdnsmasq"))