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mirror of https://gitlab.com/libvirt/libvirt.git synced 2024-12-22 17:34:18 +03:00
libvirt/tests/nsstest.c
Michal Privoznik a8dc3ac28a tests: Produce predictable results in nsstest
Problem is that in the test any status file matching
tests/nssdata/*.status is loaded as it contains IP addresses that
are parsed. However, there's no order specified in which the
files are loaded. Therefore on different systems the order may be
different. This is then producing an unexpected results.
Instead of defining an order in which the files are loaded, make
the code that checks for missing IP addresses (or redundant ones)
cope with unordered list of addresses. The reasoning behind is
that the code doing the parsing is used in real NSS module where
we don't care for ordering.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-03-21 19:34:18 +01:00

207 lines
6.0 KiB
C

/*
* Copyright (C) 2016 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
* Author: Michal Privoznik <mprivozn@redhat.com>
*/
#include <config.h>
#include "testutils.h"
#ifdef __linux__
# include <stdbool.h>
# include <arpa/inet.h>
# include "libvirt_nss.h"
# include "virsocketaddr.h"
# define VIR_FROM_THIS VIR_FROM_NONE
# define BUF_SIZE 1024
struct testNSSData {
const char *hostname;
const char *const *ipAddr;
int af;
};
static int
testGetHostByName(const void *opaque)
{
const struct testNSSData *data = opaque;
const bool existent = data->hostname && data->ipAddr && data->ipAddr[0];
int ret = -1;
struct hostent resolved;
char buf[BUF_SIZE] = { 0 };
char **addrList;
int rv, tmp_errno = 0, tmp_herrno = 0;
size_t i = 0, j = 0;
if (!data)
goto cleanup;
memset(&resolved, 0, sizeof(resolved));
rv = _nss_libvirt_gethostbyname2_r(data->hostname,
data->af,
&resolved,
buf, sizeof(buf),
&tmp_errno,
&tmp_herrno);
if (rv == NSS_STATUS_TRYAGAIN ||
rv == NSS_STATUS_UNAVAIL ||
rv == NSS_STATUS_RETURN) {
/* Resolving failed in unexpected fashion. */
virReportError(VIR_ERR_INTERNAL_ERROR,
"Resolving of %s failed due to internal error",
data->hostname);
goto cleanup;
} else if (rv == NSS_STATUS_NOTFOUND) {
/* Resolving failed. Should it? */
if (!existent)
ret = 0;
else
virReportError(VIR_ERR_INTERNAL_ERROR,
"Resolving of %s failed",
data->hostname);
goto cleanup;
}
/* Resolving succeeded. Should it? */
if (!existent) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"Resolving of %s succeeded but was expected to fail",
data->hostname);
goto cleanup;
}
/* Now lets see if resolved address match our expectations. */
if (!resolved.h_name) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
"resolved.h_name empty");
goto cleanup;
}
if (data->af != AF_UNSPEC &&
resolved.h_addrtype != data->af) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"Expected AF_INET (%d) got %d",
data->af, resolved.h_addrtype);
goto cleanup;
}
if ((resolved.h_addrtype == AF_INET && resolved.h_length != 4) ||
(resolved.h_addrtype == AF_INET6 && resolved.h_length != 16)) {
/* IPv4 addresses are encoded into 4 bytes */
virReportError(VIR_ERR_INTERNAL_ERROR,
"Expected %d bytes long address, got %d",
resolved.h_addrtype == AF_INET ? 4 : 16,
resolved.h_length);
goto cleanup;
}
if (!resolved.h_addr_list) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
"resolved.h_addr_list empty");
goto cleanup;
}
addrList = resolved.h_addr_list;
while (*addrList) {
virSocketAddr sa;
char *ipAddr;
void *address = *addrList;
memset(&sa, 0, sizeof(sa));
if (resolved.h_addrtype == AF_INET) {
virSocketAddrSetIPv4AddrNetOrder(&sa, *((uint32_t *) address));
} else {
virSocketAddrSetIPv6AddrNetOrder(&sa, address);
}
if (!(ipAddr = virSocketAddrFormat(&sa))) {
/* error reported by helper */
goto cleanup;
}
for (j = 0; data->ipAddr[j]; j++) {
if (STREQ(data->ipAddr[j], ipAddr))
break;
}
if (!data->ipAddr[j]) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"Unexpected address %s", ipAddr);
VIR_FREE(ipAddr);
goto cleanup;
}
VIR_FREE(ipAddr);
addrList++;
i++;
}
for (j = 0; data->ipAddr[j]; j++)
;
if (i != j) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"Expected %zu addresses, got %zu", j, i);
goto cleanup;
}
ret = 0;
cleanup:
return ret;
}
static int
mymain(void)
{
int ret = 0;
# define DO_TEST(name, family, ...) \
do { \
const char *addr[] = { __VA_ARGS__, NULL}; \
struct testNSSData data = { \
.hostname = name, .ipAddr = addr, .af = family, \
}; \
if (virtTestRun(name, testGetHostByName, &data) < 0) \
ret = -1; \
} while (0)
DO_TEST("fedora", AF_INET, "192.168.122.197", "192.168.122.198", "192.168.122.199");
DO_TEST("gentoo", AF_INET, "192.168.122.254");
DO_TEST("gentoo", AF_INET6, "2001:1234:dead:beef::2");
DO_TEST("gentoo", AF_UNSPEC, "192.168.122.254");
DO_TEST("non-existent", AF_UNSPEC, NULL);
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIRT_TEST_MAIN_PRELOAD(mymain, abs_builddir "/.libs/nssmock.so")
#else
int
main(void)
{
return EXIT_AM_SKIP;
}
#endif