source3/torture/mangle_test.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    SMB torture tester - mangling test
   4    Copyright (C) Andrew Tridgell 2002
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "includes.h"
  21 #include "system/filesys.h"
  22 #include "torture/proto.h"
  23 #include "libsmb/libsmb.h"
  24 #include "libsmb/clirap.h"
  25 #include "util_tdb.h"
  26
  27 extern int torture_numops;
  28
  29 static TDB_CONTEXT *tdb;
  30
  31 #define NAME_LENGTH 20
  32
  33 static unsigned total, collisions, failures;
  34
  35 static bool test_one(struct cli_state *cli, const char *name)
  36 {
  37         uint16_t fnum;
  38         fstring shortname;
  39         fstring name2;
  40         NTSTATUS status;
  41         TDB_DATA data;
  42
  43         total++;
  44
  45         status = cli_open(cli, name, O_RDWR|O_CREAT|O_EXCL, DENY_NONE, &fnum);
  46         if (!NT_STATUS_IS_OK(status)) {
  47                 printf("open of %s failed (%s)\n", name, nt_errstr(status));
  48                 return False;
  49         }
  50
  51         status = cli_close(cli, fnum);
  52         if (!NT_STATUS_IS_OK(status)) {
  53                 printf("close of %s failed (%s)\n", name, nt_errstr(status));
  54                 return False;
  55         }
  56
  57         /* get the short name */
  58         status = cli_qpathinfo_alt_name(cli, name, shortname);
  59         if (!NT_STATUS_IS_OK(status)) {
  60                 printf("query altname of %s failed (%s)\n", name, nt_errstr(status));
  61                 return False;
  62         }
  63
  64         fstr_sprintf(name2, "\\mangle_test\\%s", shortname);
  65         status = cli_unlink(cli, name2, FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN);
  66         if (!NT_STATUS_IS_OK(status)) {
  67                 printf("unlink of %s  (%s) failed (%s)\n",
  68                        name2, name, nt_errstr(status));
  69                 return False;
  70         }
  71
  72         /* recreate by short name */
  73         status = cli_open(cli, name2, O_RDWR|O_CREAT|O_EXCL, DENY_NONE, &fnum);
  74         if (!NT_STATUS_IS_OK(status)) {
  75                 printf("open2 of %s failed (%s)\n", name2, nt_errstr(status));
  76                 return False;
  77         }
  78
  79         status = cli_close(cli, fnum);
  80         if (!NT_STATUS_IS_OK(status)) {
  81                 printf("close of %s failed (%s)\n", name, nt_errstr(status));
  82                 return False;
  83         }
  84
  85         /* and unlink by long name */
  86         status = cli_unlink(cli, name, FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN);
  87         if (!NT_STATUS_IS_OK(status)) {
  88                 printf("unlink2 of %s  (%s) failed (%s)\n",
  89                        name, name2, nt_errstr(status));
  90                 failures++;
  91                 cli_unlink(cli, name2, FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN);
  92                 return True;
  93         }
  94
  95         /* see if the short name is already in the tdb */
  96         data = tdb_fetch_bystring(tdb, shortname);
  97         if (data.dptr) {
  98                 /* maybe its a duplicate long name? */
  99                 if (!strequal(name, (const char *)data.dptr)) {
 100                         /* we have a collision */
 101                         collisions++;
 102                         printf("Collision between %s and %s   ->  %s "
 103                                 " (coll/tot: %u/%u)\n",
 104                                 name, data.dptr, shortname, collisions, total);
 105                 }
 106                 free(data.dptr);
 107         } else {
 108                 TDB_DATA namedata;
 109                 /* store it for later */
 110                 namedata.dptr = discard_const_p(uint8, name);
 111                 namedata.dsize = strlen(name)+1;
 112                 tdb_store_bystring(tdb, shortname, namedata, TDB_REPLACE);
 113         }
 114
 115         return True;
 116 }
 117
 118
 119 static void gen_name(char *name)
 120 {
 121         const char *chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz._-$~... ";
 122         unsigned max_idx = strlen(chars);
 123         unsigned len;
 124         int i;
 125         char *p;
 126
 127         fstrcpy(name, "\\mangle_test\\");
 128         p = name + strlen(name);
 129
 130         len = 1 + random() % NAME_LENGTH;
 131
 132         for (i=0;i<len;i++) {
 133                 p[i] = chars[random() % max_idx];
 134         }
 135
 136         p[i] = 0;
 137
 138         if (strcmp(p, ".") == 0 || strcmp(p, "..") == 0) {
 139                 p[0] = '_';
 140         }
 141
 142         /* have a high probability of a common lead char */
 143         if (random() % 2 == 0) {
 144                 p[0] = 'A';
 145         }
 146
 147         /* and a medium probability of a common lead string */
 148         if (random() % 10 == 0) {
 149                 if (strlen(p) <= 5) {
 150                         fstrcpy(p, "ABCDE");
 151                 } else {
 152                         /* try not to kill off the null termination */
 153                         memcpy(p, "ABCDE", 5);
 154                 }
 155         }
 156
 157         /* and a high probability of a good extension length */
 158         if (random() % 2 == 0) {
 159                 char *s = strrchr(p, '.');
 160                 if (s) {
 161                         s[4] = 0;
 162                 }
 163         }
 164
 165         /* ..... and a 100% proability of a file not ending in "." */
 166         if (p[strlen(p)-1] == '.')
 167                 p[strlen(p)-1] = '_';
 168 }
 169
 170
 171 bool torture_mangle(int dummy)
 172 {
 173         static struct cli_state *cli;
 174         int i;
 175         bool ret = True;
 176
 177         printf("starting mangle test\n");
 178
 179         if (!torture_open_connection(&cli, 0)) {
 180                 return False;
 181         }
 182
 183         /* we will use an internal tdb to store the names we have used */
 184         tdb = tdb_open(NULL, 100000, TDB_INTERNAL, 0, 0);
 185         if (!tdb) {
 186                 printf("ERROR: Failed to open tdb\n");
 187                 return False;
 188         }
 189
 190         cli_unlink(cli, "\\mangle_test\\*", FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN);
 191         cli_rmdir(cli, "\\mangle_test");
 192
 193         if (!NT_STATUS_IS_OK(cli_mkdir(cli, "\\mangle_test"))) {
 194                 printf("ERROR: Failed to make directory\n");
 195                 return False;
 196         }
 197
 198         for (i=0;i<torture_numops;i++) {
 199                 fstring name;
 200                 ZERO_STRUCT(name);
 201
 202                 gen_name(name);
 203
 204                 if (!test_one(cli, name)) {
 205                         ret = False;
 206                         break;
 207                 }
 208                 if (total && total % 100 == 0) {
 209                         printf("collisions %u/%u  - %.2f%%   (%u failures)\r",
 210                                collisions, total, (100.0*collisions) / total, failures);
 211                 }
 212         }
 213
 214         cli_unlink(cli, "\\mangle_test\\*", FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN);
 215         if (!NT_STATUS_IS_OK(cli_rmdir(cli, "\\mangle_test"))) {
 216                 printf("ERROR: Failed to remove directory\n");
 217                 return False;
 218         }
 219
 220         printf("\nTotal collisions %u/%u  - %.2f%%   (%u failures)\n",
 221                collisions, total, (100.0*collisions) / total, failures);
 222
 223         torture_close_connection(cli);
 224
 225         printf("mangle test finished\n");
 226         return (ret && (failures == 0));
 227 }