libvirt/tests/libvirtdconftest.c

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/*
* Copyright (C) 2012-2014 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: Daniel P. Berrange <berrange@redhat.com>
*/
#include <config.h>
#include <stdlib.h>
#include "testutils.h"
#include "daemon/libvirtd-config.h"
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#include "virutil.h"
#include "c-ctype.h"
#include "virerror.h"
#include "virfile.h"
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#include "virlog.h"
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#include "virconf.h"
#include "virstring.h"
#define VIR_FROM_THIS VIR_FROM_NONE
VIR_LOG_INIT("tests.libvirtdconftest");
struct testCorruptData {
size_t *params;
const char *filedata;
const char *filename;
size_t paramnum;
};
static char *
munge_param(const char *datain,
size_t *params,
size_t paramnum,
int *type)
{
char *dataout;
const char *sol;
const char *eol;
const char *eq;
const char *tmp;
size_t dataoutlen;
const char *replace = NULL;
sol = datain + params[paramnum];
eq = strchr(sol, '=');
eol = strchr(sol, '\n');
for (tmp = eq + 1; tmp < eol && !replace; tmp++) {
if (c_isspace(*tmp))
continue;
if (c_isdigit(*tmp)) {
*type = VIR_CONF_ULONG;
replace = "\"foo\"";
} else if (*tmp == '[') {
*type = VIR_CONF_LIST;
replace = "666";
} else {
*type = VIR_CONF_STRING;
replace = "666";
}
}
dataoutlen = (eq - datain) + 1 +
strlen(replace) +
strlen(eol) + 1;
if (VIR_ALLOC_N(dataout, dataoutlen) < 0)
return NULL;
memcpy(dataout, datain, (eq - datain) + 1);
memcpy(dataout + (eq - datain) + 1,
replace, strlen(replace));
memcpy(dataout + (eq - datain) + 1 + strlen(replace),
eol, strlen(eol) + 1);
return dataout;
}
static int
testCorrupt(const void *opaque)
{
const struct testCorruptData *data = opaque;
struct daemonConfig *conf = daemonConfigNew(false);
int ret = 0;
int type = VIR_CONF_NONE;
char *newdata = munge_param(data->filedata,
data->params,
data->paramnum,
&type);
virErrorPtr err = NULL;
if (!newdata)
return -1;
//VIR_DEBUG("New config [%s]", newdata);
if (daemonConfigLoadData(conf, data->filename, newdata) != -1) {
VIR_DEBUG("Did not see a failure");
ret = -1;
goto cleanup;
}
err = virGetLastError();
if (!err || !err->message) {
VIR_DEBUG("No error or message %p", err);
ret = -1;
goto cleanup;
}
#if !WITH_SASL
if (strstr(err->message, "unsupported auth sasl")) {
VIR_DEBUG("sasl unsupported, skipping this config");
goto cleanup;
}
#endif
switch (type) {
case VIR_CONF_ULONG:
if (!strstr(err->message, "invalid type: got string; expected unsigned long") &&
!strstr(err->message, "invalid type: got string; expected long")) {
VIR_DEBUG("Wrong error for long: '%s'",
err->message);
ret = -1;
}
break;
case VIR_CONF_STRING:
if (!strstr(err->message, "invalid type: got unsigned long; expected string")) {
VIR_DEBUG("Wrong error for string: '%s'",
err->message);
ret = -1;
}
break;
case VIR_CONF_LIST:
if (!strstr(err->message, "must be a string or list of strings")) {
VIR_DEBUG("Wrong error for list: '%s'",
err->message);
ret = -1;
}
break;
}
cleanup:
VIR_FREE(newdata);
daemonConfigFree(conf);
return ret;
}
static int
uncomment_all_params(char *data,
size_t **ret)
{
size_t count = 0;
char *tmp;
size_t *params = 0;
tmp = data;
while (tmp && *tmp) {
tmp = strchr(tmp, '\n');
if (!tmp)
break;
tmp++;
/* Uncomment any lines starting #some_var */
if (*tmp == '#' &&
c_isalpha(*(tmp + 1))) {
if (VIR_EXPAND_N(params, count, 1) < 0) {
VIR_FREE(params);
return -1;
}
*tmp = ' ';
params[count-1] = (tmp + 1) - data;
}
}
if (VIR_EXPAND_N(params, count, 1) < 0) {
VIR_FREE(params);
return -1;
}
params[count-1] = 0;
*ret = params;
return count;
}
static int
mymain(void)
{
int ret = 0;
char *filedata = NULL;
char *filename = NULL;
size_t i;
size_t *params = NULL;
if (virAsprintf(&filename, "%s/../daemon/libvirtd.conf",
abs_srcdir) < 0) {
perror("Format filename");
return EXIT_FAILURE;
}
if (virFileReadAll(filename, 1024*1024, &filedata) < 0) {
virErrorPtr err = virGetLastError();
fprintf(stderr, "Cannot load %s for testing: %s", filename, err->message);
ret = -1;
goto cleanup;
}
if (uncomment_all_params(filedata, &params) < 0) {
perror("Find params");
ret = -1;
goto cleanup;
}
VIR_DEBUG("Initial config [%s]", filedata);
for (i = 0; params[i] != 0; i++) {
const struct testCorruptData data = { params, filedata, filename, i };
/* Skip now ignored config param */
if (STRPREFIX(filedata + params[i], "log_buffer_size"))
continue;
if (virtTestRun("Test corruption", testCorrupt, &data) < 0)
ret = -1;
}
cleanup:
VIR_FREE(filename);
VIR_FREE(filedata);
VIR_FREE(params);
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIRT_TEST_MAIN(mymain)