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core: add test for nm_netns_shared_ip_reserve()

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Beniamino Galvani 2025-09-06 11:02:21 +02:00
parent 5677114e7c
commit 1504d12714
2 changed files with 71 additions and 0 deletions
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1
src/core/tests/meson.build
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@ -6,6 +6,7 @@ test_units = [
'test-core',
'test-core-with-expect',
'test-dcb',
'test-netns',
'test-l3cfg',
'test-utils',
'test-wired-defname',

70
src/core/tests/test-netns.c Normal file
View file

@ -0,0 +1,70 @@
/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include "src/core/nm-default-daemon.h"
#include "nm-netns.h"
#include "nm-test-utils-core.h"
static void
test_shared_ip(void)
{
gs_unref_object NMPlatform *platform = NULL;
gs_unref_object NMNetns *netns = NULL;
NMNetnsSharedIPHandle *handles[256];
NMNetnsSharedIPHandle *handle1;
NMNetnsSharedIPHandle *handle2;
char buf[NM_INET_ADDRSTRLEN];
guint i;
platform = g_object_ref(NM_PLATFORM_GET);
netns = nm_netns_new(platform);
/* Allocate addresses from 10.42.0.1 to 10.42.255.1 */
for (i = 0; i < 256; i++) {
handles[i] = nm_netns_shared_ip_reserve(netns);
g_snprintf(buf, sizeof(buf), "10.42.%u.1", i);
nmtst_assert_ip4_address(handles[i]->addr, buf);
g_assert_cmpint(handles[i]->_ref_count, ==, 1);
}
/* Release an address and get it back */
nm_netns_shared_ip_release(handles[139]);
handles[139] = nm_netns_shared_ip_reserve(netns);
nmtst_assert_ip4_address(handles[139]->addr, "10.42.139.1");
/* Reuse 10.42.255.1 once */
NMTST_EXPECT_NM_ERROR(
"netns[*]: shared-ip4: ran out of shared IP addresses. Reuse 10.42.255.1/24");
handle1 = nm_netns_shared_ip_reserve(netns);
g_test_assert_expected_messages();
nmtst_assert_ip4_address(handle1->addr, "10.42.255.1");
g_assert_cmpint(handle1->_ref_count, ==, 2);
/* Reuse 10.42.255.1 twice */
handle2 = nm_netns_shared_ip_reserve(netns);
g_assert(handle2 == handle1);
nmtst_assert_ip4_address(handle1->addr, "10.42.255.1");
g_assert_cmpint(handle2->_ref_count, ==, 3);
/* Release all */
nm_netns_shared_ip_release(handle1);
nm_netns_shared_ip_release(handle2);
for (i = 0; i < 256; i++) {
nm_netns_shared_ip_release(handles[i]);
}
}
/*****************************************************************************/
NMTST_DEFINE();
int
main(int argc, char **argv)
{
nmtst_init_with_logging(&argc, &argv, NULL, "ALL");
nm_linux_platform_setup();
g_test_add_func("/netns/shared_ip", test_shared_ip);
return g_test_run();
}