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         if (!NT_STATUS_IS_OK(cli_open(cli, name, O_RDWR|O_CREAT|O_EXCL, DENY_NONE, &fnum))) {
  46                 printf("open of %s failed (%s)\n", name, cli_errstr(cli));
  47                 return False;
  48         }
  49
  50         if (!NT_STATUS_IS_OK(cli_close(cli, fnum))) {
  51                 printf("close of %s failed (%s)\n", name, cli_errstr(cli));
  52                 return False;
  53         }
  54
  55         /* get the short name */
  56         status = cli_qpathinfo_alt_name(cli, name, shortname);
  57         if (!NT_STATUS_IS_OK(status)) {
  58                 printf("query altname of %s failed (%s)\n", name, cli_errstr(cli));
  59                 return False;
  60         }
  61
  62         fstr_sprintf(name2, "\\mangle_test\\%s", shortname);
  63         if (!NT_STATUS_IS_OK(cli_unlink(cli, name2, FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN))) {
  64                 printf("unlink of %s  (%s) failed (%s)\n",
  65                        name2, name, cli_errstr(cli));
  66                 return False;
  67         }
  68
  69         /* recreate by short name */
  70         if (!NT_STATUS_IS_OK(cli_open(cli, name2, O_RDWR|O_CREAT|O_EXCL, DENY_NONE, &fnum))) {
  71                 printf("open2 of %s failed (%s)\n", name2, cli_errstr(cli));
  72                 return False;
  73         }
  74         if (!NT_STATUS_IS_OK(cli_close(cli, fnum))) {
  75                 printf("close of %s failed (%s)\n", name, cli_errstr(cli));
  76                 return False;
  77         }
  78
  79         /* and unlink by long name */
  80         if (!NT_STATUS_IS_OK(cli_unlink(cli, name, FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN))) {
  81                 printf("unlink2 of %s  (%s) failed (%s)\n",
  82                        name, name2, cli_errstr(cli));
  83                 failures++;
  84                 cli_unlink(cli, name2, FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN);
  85                 return True;
  86         }
  87
  88         /* see if the short name is already in the tdb */
  89         data = tdb_fetch_bystring(tdb, shortname);
  90         if (data.dptr) {
  91                 /* maybe its a duplicate long name? */
  92                 if (!strequal(name, (const char *)data.dptr)) {
  93                         /* we have a collision */
  94                         collisions++;
  95                         printf("Collision between %s and %s   ->  %s "
  96                                 " (coll/tot: %u/%u)\n",
  97                                 name, data.dptr, shortname, collisions, total);
  98                 }
  99                 free(data.dptr);
 100         } else {
 101                 TDB_DATA namedata;
 102                 /* store it for later */
 103                 namedata.dptr = CONST_DISCARD(uint8 *, name);
 104                 namedata.dsize = strlen(name)+1;
 105                 tdb_store_bystring(tdb, shortname, namedata, TDB_REPLACE);
 106         }
 107
 108         return True;
 109 }
 110
 111
 112 static void gen_name(char *name)
 113 {
 114         const char *chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz._-$~... ";
 115         unsigned max_idx = strlen(chars);
 116         unsigned len;
 117         int i;
 118         char *p;
 119
 120         fstrcpy(name, "\\mangle_test\\");
 121         p = name + strlen(name);
 122
 123         len = 1 + random() % NAME_LENGTH;
 124
 125         for (i=0;i<len;i++) {
 126                 p[i] = chars[random() % max_idx];
 127         }
 128
 129         p[i] = 0;
 130
 131         if (strcmp(p, ".") == 0 || strcmp(p, "..") == 0) {
 132                 p[0] = '_';
 133         }
 134
 135         /* have a high probability of a common lead char */
 136         if (random() % 2 == 0) {
 137                 p[0] = 'A';
 138         }
 139
 140         /* and a medium probability of a common lead string */
 141         if (random() % 10 == 0) {
 142                 if (strlen(p) <= 5) {
 143                         fstrcpy(p, "ABCDE");
 144                 } else {
 145                         /* try not to kill off the null termination */
 146                         memcpy(p, "ABCDE", 5);
 147                 }
 148         }
 149
 150         /* and a high probability of a good extension length */
 151         if (random() % 2 == 0) {
 152                 char *s = strrchr(p, '.');
 153                 if (s) {
 154                         s[4] = 0;
 155                 }
 156         }
 157
 158         /* ..... and a 100% proability of a file not ending in "." */
 159         if (p[strlen(p)-1] == '.')
 160                 p[strlen(p)-1] = '_';
 161 }
 162
 163
 164 bool torture_mangle(int dummy)
 165 {
 166         static struct cli_state *cli;
 167         int i;
 168         bool ret = True;
 169
 170         printf("starting mangle test\n");
 171
 172         if (!torture_open_connection(&cli, 0)) {
 173                 return False;
 174         }
 175
 176         /* we will use an internal tdb to store the names we have used */
 177         tdb = tdb_open(NULL, 100000, TDB_INTERNAL, 0, 0);
 178         if (!tdb) {
 179                 printf("ERROR: Failed to open tdb\n");
 180                 return False;
 181         }
 182
 183         cli_unlink(cli, "\\mangle_test\\*", FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN);
 184         cli_rmdir(cli, "\\mangle_test");
 185
 186         if (!NT_STATUS_IS_OK(cli_mkdir(cli, "\\mangle_test"))) {
 187                 printf("ERROR: Failed to make directory\n");
 188                 return False;
 189         }
 190
 191         for (i=0;i<torture_numops;i++) {
 192                 fstring name;
 193                 ZERO_STRUCT(name);
 194
 195                 gen_name(name);
 196
 197                 if (!test_one(cli, name)) {
 198                         ret = False;
 199                         break;
 200                 }
 201                 if (total && total % 100 == 0) {
 202                         printf("collisions %u/%u  - %.2f%%   (%u failures)\r",
 203                                collisions, total, (100.0*collisions) / total, failures);
 204                 }
 205         }
 206
 207         cli_unlink(cli, "\\mangle_test\\*", FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN);
 208         if (!NT_STATUS_IS_OK(cli_rmdir(cli, "\\mangle_test"))) {
 209                 printf("ERROR: Failed to remove directory\n");
 210                 return False;
 211         }
 212
 213         printf("\nTotal collisions %u/%u  - %.2f%%   (%u failures)\n",
 214                collisions, total, (100.0*collisions) / total, failures);
 215
 216         torture_close_connection(cli);
 217
 218         printf("mangle test finished\n");
 219         return (ret && (failures == 0));
 220 }