source4/torture/basic/delaywrite.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    test suite for delayed write update
   5
   6    Copyright (C) Volker Lendecke 2004
   7    Copyright (C) Andrew Tridgell 2004
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22 */
  23
  24 #include "includes.h"
  25 #include "libcli/raw/libcliraw.h"
  26 #include "system/time.h"
  27
  28 #define BASEDIR "\\delaywrite"
  29
  30 static BOOL test_delayed_write_update(struct smbcli_state *cli, TALLOC_CTX *mem_ctx)
  31 {
  32         union smb_fileinfo finfo1, finfo2;
  33         const char *fname = BASEDIR "\\torture_file.txt";
  34         NTSTATUS status;
  35         int fnum1 = -1;
  36         BOOL ret = True;
  37         ssize_t written;
  38         time_t t;
  39
  40         printf("Testing delayed update of write time\n");
  41
  42         if (!torture_setup_dir(cli, BASEDIR)) {
  43                 return False;
  44         }
  45
  46         fnum1 = smbcli_open(cli->tree, fname, O_RDWR|O_CREAT, DENY_NONE);
  47         if (fnum1 == -1) {
  48                 printf("Failed to open %s\n", fname);
  49                 return False;
  50         }
  51
  52         finfo1.basic_info.level = RAW_FILEINFO_BASIC_INFO;
  53         finfo1.basic_info.in.fnum = fnum1;
  54         finfo2 = finfo1;
  55
  56         status = smb_raw_fileinfo(cli->tree, mem_ctx, &finfo1);
  57
  58         if (!NT_STATUS_IS_OK(status)) {
  59                 DEBUG(0, ("fileinfo failed: %s\n", nt_errstr(status)));
  60                 return False;
  61         }
  62
  63         printf("Initial write time %s\n",
  64                nt_time_string(mem_ctx, finfo1.basic_info.out.write_time));
  65
  66         /* 3 second delay to ensure we get past any 2 second time
  67            granularity (older systems may have that) */
  68         sleep(3);
  69
  70         written =  smbcli_write(cli->tree, fnum1, 0, "x", 0, 1);
  71
  72         if (written != 1) {
  73                 printf("write failed - wrote %d bytes (%s)\n", written, __location__);
  74                 return False;
  75         }
  76
  77         t = time(NULL);
  78
  79         while (time(NULL) < t+120) {
  80                 status = smb_raw_fileinfo(cli->tree, mem_ctx, &finfo2);
  81
  82                 if (!NT_STATUS_IS_OK(status)) {
  83                         DEBUG(0, ("fileinfo failed: %s\n", nt_errstr(status)));
  84                         ret = False;
  85                         break;
  86                 }
  87                 printf("write time %s\n",
  88                        nt_time_string(mem_ctx, finfo2.basic_info.out.write_time));
  89                 if (finfo1.basic_info.out.write_time != finfo2.basic_info.out.write_time) {
  90                         printf("Server updated write_time after %d seconds\n",
  91                                (int)(time(NULL) - t));
  92                         break;
  93                 }
  94                 sleep(1);
  95                 fflush(stdout);
  96         }
  97
  98         if (finfo1.basic_info.out.write_time == finfo2.basic_info.out.write_time) {
  99                 printf("Server did not update write time?!\n");
 100                 ret = False;
 101         }
 102
 103
 104         if (fnum1 != -1)
 105                 smbcli_close(cli->tree, fnum1);
 106         smbcli_unlink(cli->tree, fname);
 107         smbcli_deltree(cli->tree, BASEDIR);
 108
 109         return ret;
 110 }
 111
 112
 113 /* Windows does obviously not update the stat info during a write call. I
 114  * *think* this is the problem causing a spurious Excel 2003 on XP error
 115  * message when saving a file. Excel does a setfileinfo, writes, and then does
 116  * a getpath(!)info. Or so... For Samba sometimes it displays an error message
 117  * that the file might have been changed in between. What i've been able to
 118  * trace down is that this happens if the getpathinfo after the write shows a
 119  * different last write time than the setfileinfo showed. This is really
 120  * nasty....
 121  */
 122
 123 static BOOL test_finfo_after_write(struct smbcli_state *cli, TALLOC_CTX *mem_ctx)
 124 {
 125         union smb_fileinfo finfo1, finfo2;
 126         const char *fname = BASEDIR "\\torture_file.txt";
 127         NTSTATUS status;
 128         int fnum1 = -1;
 129         int fnum2;
 130         BOOL ret = True;
 131         ssize_t written;
 132         struct smbcli_state *cli2=NULL;
 133
 134         printf("Testing finfo update on close\n");
 135
 136         if (!torture_setup_dir(cli, BASEDIR)) {
 137                 return False;
 138         }
 139
 140         fnum1 = smbcli_open(cli->tree, fname, O_RDWR|O_CREAT, DENY_NONE);
 141         if (fnum1 == -1) {
 142                 ret = False;
 143                 goto done;
 144         }
 145
 146         finfo1.basic_info.level = RAW_FILEINFO_BASIC_INFO;
 147         finfo1.basic_info.in.fnum = fnum1;
 148
 149         status = smb_raw_fileinfo(cli->tree, mem_ctx, &finfo1);
 150
 151         if (!NT_STATUS_IS_OK(status)) {
 152                 DEBUG(0, ("fileinfo failed: %s\n", nt_errstr(status)));
 153                 ret = False;
 154                 goto done;
 155         }
 156
 157         msleep(1000);
 158
 159         written =  smbcli_write(cli->tree, fnum1, 0, "x", 0, 1);
 160
 161         if (written != 1) {
 162                 printf("(%s) written gave %d - should have been 1\n",
 163                        __location__, written);
 164                 ret = False;
 165                 goto done;
 166         }
 167
 168         if (!torture_open_connection(&cli2)) {
 169                 return False;
 170         }
 171
 172         fnum2 = smbcli_open(cli2->tree, fname, O_RDWR, DENY_NONE);
 173         if (fnum2 == -1) {
 174                 printf("(%s) failed to open 2nd time - %s\n",
 175                        __location__, smbcli_errstr(cli2->tree));
 176                 ret = False;
 177                 goto done;
 178         }
 179
 180         written =  smbcli_write(cli2->tree, fnum2, 0, "x", 0, 1);
 181
 182         if (written != 1) {
 183                 printf("(%s) written gave %d - should have been 1\n",
 184                        __location__, written);
 185                 ret = False;
 186                 goto done;
 187         }
 188
 189         finfo2.basic_info.level = RAW_FILEINFO_BASIC_INFO;
 190         finfo2.basic_info.in.fname = fname;
 191
 192         status = smb_raw_pathinfo(cli2->tree, mem_ctx, &finfo2);
 193
 194         if (!NT_STATUS_IS_OK(status)) {
 195                 DEBUG(0, ("(%s) fileinfo failed: %s\n",
 196                           __location__, nt_errstr(status)));
 197                 ret = False;
 198                 goto done;
 199         }
 200
 201         if (finfo1.basic_info.out.create_time !=
 202             finfo2.basic_info.out.create_time) {
 203                 printf("(%s) create_time changed\n", __location__);
 204                 ret = False;
 205                 goto done;
 206         }
 207
 208         if (finfo1.basic_info.out.access_time !=
 209             finfo2.basic_info.out.access_time) {
 210                 printf("(%s) access_time changed\n", __location__);
 211                 ret = False;
 212                 goto done;
 213         }
 214
 215         if (finfo1.basic_info.out.write_time !=
 216             finfo2.basic_info.out.write_time) {
 217                 printf("(%s) write_time changed\n", __location__);
 218                 ret = False;
 219                 goto done;
 220         }
 221
 222         if (finfo1.basic_info.out.change_time !=
 223             finfo2.basic_info.out.change_time) {
 224                 printf("(%s) change_time changed\n", __location__);
 225                 ret = False;
 226                 goto done;
 227         }
 228
 229         /* One of the two following calls updates the qpathinfo. */
 230
 231         /* If you had skipped the smbcli_write on fnum2, it would
 232          * *not* have updated the stat on disk */
 233
 234         smbcli_close(cli2->tree, fnum2);
 235         torture_close_connection(cli2);
 236         cli2 = NULL;
 237
 238         /* This call is only for the people looking at ethereal :-) */
 239         finfo2.basic_info.level = RAW_FILEINFO_BASIC_INFO;
 240         finfo2.basic_info.in.fname = fname;
 241
 242         status = smb_raw_pathinfo(cli->tree, mem_ctx, &finfo2);
 243
 244         if (!NT_STATUS_IS_OK(status)) {
 245                 DEBUG(0, ("fileinfo failed: %s\n", nt_errstr(status)));
 246                 ret = False;
 247                 goto done;
 248         }
 249
 250  done:
 251         if (fnum1 != -1)
 252                 smbcli_close(cli->tree, fnum1);
 253         smbcli_unlink(cli->tree, fname);
 254         smbcli_deltree(cli->tree, BASEDIR);
 255         if (cli2 != NULL) {
 256                 torture_close_connection(cli2);
 257         }
 258
 259         return ret;
 260 }
 261
 262
 263 /*
 264    testing of delayed update of write_time
 265 */
 266 BOOL torture_delay_write(void)
 267 {
 268         struct smbcli_state *cli;
 269         BOOL ret = True;
 270         TALLOC_CTX *mem_ctx;
 271
 272         if (!torture_open_connection(&cli)) {
 273                 return False;
 274         }
 275
 276         mem_ctx = talloc_init("torture_delay_write");
 277
 278         ret &= test_finfo_after_write(cli, mem_ctx);
 279         ret &= test_delayed_write_update(cli, mem_ctx);
 280
 281         torture_close_connection(cli);
 282         talloc_destroy(mem_ctx);
 283         return ret;
 284 }