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/*
Unix SMB/CIFS implementation.
SMB torture tester - mangling test
Copyright (C) Andrew Tridgell 2002
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
static TDB_CONTEXT *tdb;
#define NAME_LENGTH 20
static unsigned total, collisions, failures;
static BOOL test_one(struct cli_state *cli, const char *name)
{
int fnum;
fstring shortname;
fstring name2;
NTSTATUS status;
TDB_DATA data;
total++;
fnum = cli_open(cli, name, O_RDWR|O_CREAT|O_EXCL, DENY_NONE);
if (fnum == -1) {
printf("open of %s failed (%s)\n", name, cli_errstr(cli));
return False;
}
if (!cli_close(cli, fnum)) {
printf("close of %s failed (%s)\n", name, cli_errstr(cli));
return False;
}
/* get the short name */
status = cli_qpathinfo_alt_name(cli, name, shortname);
if (!NT_STATUS_IS_OK(status)) {
printf("query altname of %s failed (%s)\n", name, cli_errstr(cli));
return False;
}
snprintf(name2, sizeof(name2), "\\mangle_test\\%s", shortname);
if (!cli_unlink(cli, name2)) {
printf("unlink of %s (%s) failed (%s)\n",
name2, name, cli_errstr(cli));
return False;
}
/* recreate by short name */
fnum = cli_open(cli, name2, O_RDWR|O_CREAT|O_EXCL, DENY_NONE);
if (fnum == -1) {
printf("open2 of %s failed (%s)\n", name2, cli_errstr(cli));
return False;
}
if (!cli_close(cli, fnum)) {
printf("close of %s failed (%s)\n", name, cli_errstr(cli));
return False;
}
/* and unlink by long name */
if (!cli_unlink(cli, name)) {
printf("unlink2 of %s (%s) failed (%s)\n",
name, name2, cli_errstr(cli));
failures++;
cli_unlink(cli, name2);
return True;
}
/* see if the short name is already in the tdb */
data = tdb_fetch_by_string(tdb, shortname);
if (data.dptr) {
/* maybe its a duplicate long name? */
if (strcasecmp(name, data.dptr) != 0) {
/* we have a collision */
collisions++;
printf("Collision between %s and %s -> %s\n",
name, data.dptr, shortname);
}
free(data.dptr);
} else {
/* store it for later */
tdb_store_by_string(tdb, shortname, name, strlen(name)+1);
}
return True;
}
static void gen_name(char *name)
{
const char *chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz._-$~...";
unsigned max_idx = strlen(chars);
unsigned len;
int i;
char *p;
fstrcpy(name, "\\mangle_test\\");
p = name + strlen(name);
len = 1 + random() % NAME_LENGTH;
for (i=0;i<len;i++) {
p[i] = chars[random() % max_idx];
}
p[i] = 0;
if (strcmp(p, ".") == 0 || strcmp(p, "..") == 0) {
p[0] = '_';
}
/* have a high probability of a common lead char */
if (random() % 2 == 0) {
p[0] = 'A';
}
/* and a medium probability of a common lead string */
if (random() % 10 == 0) {
strncpy(p, "ABCDE", 5);
}
/* and a high probability of a good extension length */
if (random() % 2 == 0) {
char *s = strrchr(p, '.');
if (s) {
s[4] = 0;
}
}
}
BOOL torture_mangle(int dummy)
{
extern int torture_numops;
static struct cli_state cli;
int i;
printf("starting mangle test\n");
if (!torture_open_connection(&cli)) {
return False;
}
/* we will use an internal tdb to store the names we have used */
tdb = tdb_open(NULL, 100000, TDB_INTERNAL, 0, 0);
if (!tdb) {
printf("ERROR: Failed to open tdb\n");
return False;
}
cli_unlink(&cli, "\\mangle_test\\*");
cli_rmdir(&cli, "\\mangle_test");
if (!cli_mkdir(&cli, "\\mangle_test")) {
printf("ERROR: Failed to make directory\n");
return False;
}
for (i=0;i<torture_numops;i++) {
fstring name;
gen_name(name);
if (!test_one(&cli, name)) {
break;
}
if (total && total % 100 == 0) {
printf("collisions %u/%u - %.2f%% (%u failures)\r",
collisions, total, (100.0*collisions) / total, failures);
}
}
cli_unlink(&cli, "\\mangle_test\\*");
if (!cli_rmdir(&cli, "\\mangle_test")) {
printf("ERROR: Failed to remove directory\n");
return False;
}
printf("\nTotal collisions %u/%u - %.2f%% (%u failures)\n",
collisions, total, (100.0*collisions) / total, failures);
torture_close_connection(&cli);
printf("mangle test finished\n");
return (failures == 0);
}
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