libvirt/tests/fchosttest.c
John Ferlan f29b13f830 util: Alter return value of virReadFCHost and fix mem leak
https://bugzilla.redhat.com/show_bug.cgi?id=1357416

Rather than return a 0 or -1 and the *result string, return just the result
string to the caller.  Alter all the callers to handle the different return.

As a side effect or result of this, it's much clearer that we cannot just
assign the returned string into the scsi_host wwnn, wwpn, and fabric_wwn
fields - rather we should fetch a temporary string, then as long as our
fetch was good, VIR_FREE what may have been there, and STEAL what we just got.
This fixes a memory leak in the virNodeDeviceCreateXML code path through
find_new_device and nodeDeviceLookupSCSIHostByWWN which will continually
call nodeDeviceSysfsGetSCSIHostCaps until the expected wwnn/wwpn is found
in the device object capabilities.

Signed-off-by: John Ferlan <jferlan@redhat.com>
2016-10-14 06:47:36 -04:00

179 lines
4.4 KiB
C

/*
* Copyright (C) 2013 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/>.
*
*/
#include <config.h>
#include "virstring.h"
#include "virutil.h"
#include "testutils.h"
#define VIR_FROM_THIS VIR_FROM_NONE
static char *fchost_prefix;
#define TEST_FC_HOST_PREFIX fchost_prefix
#define TEST_FC_HOST_NUM 5
/* Test virIsCapableFCHost */
static int
test1(const void *data ATTRIBUTE_UNUSED)
{
if (virIsCapableFCHost(TEST_FC_HOST_PREFIX,
TEST_FC_HOST_NUM))
return 0;
return -1;
}
/* Test virIsCapableVport */
static int
test2(const void *data ATTRIBUTE_UNUSED)
{
if (virIsCapableVport(TEST_FC_HOST_PREFIX,
TEST_FC_HOST_NUM))
return 0;
return -1;
}
/* Test virReadFCHost */
static int
test3(const void *data ATTRIBUTE_UNUSED)
{
const char *expect_wwnn = "2001001b32a9da4e";
const char *expect_wwpn = "2101001b32a9da4e";
const char *expect_fabric_wwn = "2001000dec9877c1";
const char *expect_max_vports = "127";
const char *expect_vports = "0";
char *wwnn = NULL;
char *wwpn = NULL;
char *fabric_wwn = NULL;
char *max_vports = NULL;
char *vports = NULL;
int ret = -1;
if (!(wwnn = virReadFCHost(TEST_FC_HOST_PREFIX, TEST_FC_HOST_NUM,
"node_name")))
return -1;
if (!(wwpn = virReadFCHost(TEST_FC_HOST_PREFIX, TEST_FC_HOST_NUM,
"port_name")))
goto cleanup;
if (!(fabric_wwn = virReadFCHost(TEST_FC_HOST_PREFIX, TEST_FC_HOST_NUM,
"fabric_name")))
goto cleanup;
if (!(max_vports = virReadFCHost(TEST_FC_HOST_PREFIX, TEST_FC_HOST_NUM,
"max_npiv_vports")))
goto cleanup;
if (!(vports = virReadFCHost(TEST_FC_HOST_PREFIX, TEST_FC_HOST_NUM,
"npiv_vports_inuse")))
goto cleanup;
if (STRNEQ(expect_wwnn, wwnn) ||
STRNEQ(expect_wwpn, wwpn) ||
STRNEQ(expect_fabric_wwn, fabric_wwn) ||
STRNEQ(expect_max_vports, max_vports) ||
STRNEQ(expect_vports, vports))
goto cleanup;
ret = 0;
cleanup:
VIR_FREE(wwnn);
VIR_FREE(wwpn);
VIR_FREE(fabric_wwn);
VIR_FREE(max_vports);
VIR_FREE(vports);
return ret;
}
/* Test virGetFCHostNameByWWN */
static int
test4(const void *data ATTRIBUTE_UNUSED)
{
const char *expect_hostname = "host5";
char *hostname = NULL;
int ret = -1;
if (!(hostname = virGetFCHostNameByWWN(TEST_FC_HOST_PREFIX,
"2001001b32a9da4e",
"2101001b32a9da4e")))
return -1;
if (STRNEQ(hostname, expect_hostname))
goto cleanup;
ret = 0;
cleanup:
VIR_FREE(hostname);
return ret;
}
/* Test virFindFCHostCapableVport (host4 is not Online) */
static int
test5(const void *data ATTRIBUTE_UNUSED)
{
const char *expect_hostname = "host5";
char *hostname = NULL;
int ret = -1;
if (!(hostname = virFindFCHostCapableVport(TEST_FC_HOST_PREFIX)))
return -1;
if (STRNEQ(hostname, expect_hostname))
goto cleanup;
ret = 0;
cleanup:
VIR_FREE(hostname);
return ret;
}
static int
mymain(void)
{
int ret = 0;
if (virAsprintf(&fchost_prefix, "%s/%s", abs_srcdir,
"fchostdata/fc_host/") < 0) {
ret = -1;
goto cleanup;
}
if (virTestRun("test1", test1, NULL) < 0)
ret = -1;
if (virTestRun("test2", test2, NULL) < 0)
ret = -1;
if (virTestRun("test3", test3, NULL) < 0)
ret = -1;
if (virTestRun("test4", test4, NULL) < 0)
ret = -1;
if (virTestRun("test5", test5, NULL) < 0)
ret = -1;
cleanup:
VIR_FREE(fchost_prefix);
return ret;
}
VIRT_TEST_MAIN(mymain)