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64b966558c
It still can have only one useful value ("iptables"), but once a 2nd value is supported, it will be selectable by setting "firewall_backend=nftables" in /etc/libvirt/network.conf. If firewall_backend isn't set in network.conf, then libvirt will check to see if FIREWALL_BACKEND_DEFAULT_1 is available and, if so, set that. (Since FIREWALL_BACKEND_DEFAULT_1 is currently "iptables", this means checking to see it the iptables binary is present on the system). If the default backend isn't available, that is considered a fatal error (since no networks can be started anyway), so an error is logged and startup of the network driver fails. NB: network.conf is itself created from network.conf.in at build time, and the advertised default setting of firewall_backend (in a commented out line) is set from the meson_options.txt setting "firewall_backend_default_1". This way the conf file will have correct information no matter what ordering is chosen for default backend at build time (as more backends are added, settings will be added for "firewall_backend_default_n", and those will be settable in meson_options.txt and on the meson commandline to change the ordering of the auto-detection when no backend is set in network.conf). virNetworkLoadDriverConfig() may look more complicated than necessary, but as additional backends are added, it will be easier to add checks for those backends (and to re-order the checks based on builders' preferences). Signed-off-by: Laine Stump <laine@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
194 lines
5.3 KiB
C
194 lines
5.3 KiB
C
/*
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* networkxml2firewalltest.c: Test iptables rule generation
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*
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* Copyright (C) 2014 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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*/
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#include <config.h>
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#include "testutils.h"
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#if defined (__linux__)
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# include <gio/gio.h>
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# include "network/bridge_driver_platform.h"
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# include "virbuffer.h"
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# include "virmock.h"
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# define LIBVIRT_VIRCOMMANDPRIV_H_ALLOW
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# include "vircommandpriv.h"
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# define VIR_FROM_THIS VIR_FROM_NONE
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# ifdef __linux__
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# define RULESTYPE "linux"
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# else
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# error "test case not ported to this platform"
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# endif
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VIR_MOCK_WRAP_RET_ARGS(g_dbus_connection_call_sync,
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GVariant *,
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GDBusConnection *, connection,
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const gchar *, bus_name,
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const gchar *, object_path,
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const gchar *, interface_name,
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const gchar *, method_name,
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GVariant *, parameters,
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const GVariantType *, reply_type,
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GDBusCallFlags, flags,
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gint, timeout_msec,
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GCancellable *, cancellable,
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GError **, error)
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{
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if (parameters) {
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g_variant_ref_sink(parameters);
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g_variant_unref(parameters);
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}
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VIR_MOCK_REAL_INIT(g_dbus_connection_call_sync);
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*error = g_dbus_error_new_for_dbus_error("org.freedesktop.error",
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"dbus is disabled");
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return NULL;
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}
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static void
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testCommandDryRun(const char *const*args G_GNUC_UNUSED,
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const char *const*env G_GNUC_UNUSED,
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const char *input G_GNUC_UNUSED,
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char **output,
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char **error,
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int *status,
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void *opaque G_GNUC_UNUSED)
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{
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*status = 0;
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*output = g_strdup("");
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*error = g_strdup("");
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}
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static int testCompareXMLToArgvFiles(const char *xml,
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const char *cmdline,
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const char *baseargs)
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{
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g_autofree char *actualargv = NULL;
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g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
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g_autoptr(virNetworkDef) def = NULL;
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char *actual;
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g_autoptr(virCommandDryRunToken) dryRunToken = virCommandDryRunTokenNew();
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virCommandSetDryRun(dryRunToken, &buf, true, true, testCommandDryRun, NULL);
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if (!(def = virNetworkDefParse(NULL, xml, NULL, false)))
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return -1;
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if (networkAddFirewallRules(def, VIR_FIREWALL_BACKEND_IPTABLES) < 0)
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return -1;
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actual = actualargv = virBufferContentAndReset(&buf);
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/* The first network to be created populates the
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* libvirt global chains. We must skip args for
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* that if present
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*/
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if (STRPREFIX(actual, baseargs))
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actual += strlen(baseargs);
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if (virTestCompareToFileFull(actual, cmdline, false) < 0)
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return -1;
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return 0;
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}
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struct testInfo {
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const char *name;
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const char *baseargs;
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};
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static int
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testCompareXMLToIPTablesHelper(const void *data)
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{
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int result = -1;
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const struct testInfo *info = data;
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g_autofree char *xml = NULL;
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g_autofree char *args = NULL;
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xml = g_strdup_printf("%s/networkxml2firewalldata/%s.xml",
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abs_srcdir, info->name);
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args = g_strdup_printf("%s/networkxml2firewalldata/%s-%s.args",
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abs_srcdir, info->name, RULESTYPE);
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result = testCompareXMLToArgvFiles(xml, args, info->baseargs);
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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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g_autofree char *basefile = NULL;
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g_autofree char *baseargs = NULL;
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# define DO_TEST(name) \
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do { \
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struct testInfo info = { \
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name, baseargs, \
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}; \
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if (virTestRun("Network XML-2-iptables " name, \
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testCompareXMLToIPTablesHelper, &info) < 0) \
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ret = -1; \
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} while (0)
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basefile = g_strdup_printf("%s/networkxml2firewalldata/base.args", abs_srcdir);
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if (virFileReadAll(basefile, INT_MAX, &baseargs) < 0)
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return EXIT_FAILURE;
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DO_TEST("nat-default");
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DO_TEST("nat-tftp");
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DO_TEST("nat-many-ips");
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DO_TEST("nat-no-dhcp");
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DO_TEST("nat-ipv6");
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DO_TEST("nat-ipv6-masquerade");
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DO_TEST("route-default");
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return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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/* NB: virgdbus must be mocked because this test calls
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* networkAddFirewallRules(), which will always call
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* virFirewallDIsRegistered(), which calls
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* virGDBusIsServiceRegistered().
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*/
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VIR_TEST_MAIN_PRELOAD(mymain, VIR_TEST_MOCK("virgdbus"),
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VIR_TEST_MOCK("virfirewall"))
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#else /* ! defined (__linux__) */
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int main(void)
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{
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return EXIT_AM_SKIP;
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}
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#endif /* ! defined (__linux__) */
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