module/splat/splat-vnode.c

   1 /*****************************************************************************\
   2  *  Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
   3  *  Copyright (C) 2007 The Regents of the University of California.
   4  *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
   5  *  Written by Brian Behlendorf <behlendorf1@llnl.gov>.
   6  *  UCRL-CODE-235197
   7  *
   8  *  This file is part of the SPL, Solaris Porting Layer.
   9  *  For details, see <http://zfsonlinux.org/>.
  10  *
  11  *  The SPL is free software; you can redistribute it and/or modify it
  12  *  under the terms of the GNU General Public License as published by the
  13  *  Free Software Foundation; either version 2 of the License, or (at your
  14  *  option) any later version.
  15  *
  16  *  The SPL is distributed in the hope that it will be useful, but WITHOUT
  17  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  18  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  19  *  for more details.
  20  *
  21  *  You should have received a copy of the GNU General Public License along
  22  *  with the SPL.  If not, see <http://www.gnu.org/licenses/>.
  23  *****************************************************************************
  24  *  Solaris Porting LAyer Tests (SPLAT) Vnode Tests.
  25 \*****************************************************************************/
  26
  27 #include <sys/vnode.h>
  28 #include "splat-internal.h"
  29
  30 #define SPLAT_VNODE_NAME                "vnode"
  31 #define SPLAT_VNODE_DESC                "Kernel Vnode Tests"
  32
  33 #define SPLAT_VNODE_TEST1_ID            0x0901
  34 #define SPLAT_VNODE_TEST1_NAME          "vn_open"
  35 #define SPLAT_VNODE_TEST1_DESC          "Vn_open Test"
  36
  37 #define SPLAT_VNODE_TEST2_ID            0x0902
  38 #define SPLAT_VNODE_TEST2_NAME          "vn_openat"
  39 #define SPLAT_VNODE_TEST2_DESC          "Vn_openat Test"
  40
  41 #define SPLAT_VNODE_TEST3_ID            0x0903
  42 #define SPLAT_VNODE_TEST3_NAME          "vn_rdwr"
  43 #define SPLAT_VNODE_TEST3_DESC          "Vn_rdwrt Test"
  44
  45 #define SPLAT_VNODE_TEST4_ID            0x0904
  46 #define SPLAT_VNODE_TEST4_NAME          "vn_rename"
  47 #define SPLAT_VNODE_TEST4_DESC          "Vn_rename Test"
  48
  49 #define SPLAT_VNODE_TEST5_ID            0x0905
  50 #define SPLAT_VNODE_TEST5_NAME          "vn_getattr"
  51 #define SPLAT_VNODE_TEST5_DESC          "Vn_getattr Test"
  52
  53 #define SPLAT_VNODE_TEST6_ID            0x0906
  54 #define SPLAT_VNODE_TEST6_NAME          "vn_sync"
  55 #define SPLAT_VNODE_TEST6_DESC          "Vn_sync Test"
  56
  57 #define SPLAT_VNODE_TEST_FILE           "/etc/fstab"
  58 #define SPLAT_VNODE_TEST_FILE_AT        "etc/fstab"
  59 #define SPLAT_VNODE_TEST_FILE_RW        "/tmp/spl.vnode.tmp"
  60 #define SPLAT_VNODE_TEST_FILE_RW1       "/tmp/spl.vnode.tmp.1"
  61 #define SPLAT_VNODE_TEST_FILE_RW2       "/tmp/spl.vnode.tmp.2"
  62
  63 static int
  64 splat_vnode_user_cmd(struct file *file, void *arg,
  65                      char *name, char *cmd)
  66 {
  67         char sh_path[] = "/bin/sh";
  68         char *argv[] = { sh_path,
  69                          "-c",
  70                          cmd,
  71                          NULL };
  72         char *envp[] = { "HOME=/",
  73                          "TERM=linux",
  74                          "PATH=/sbin:/usr/sbin:/bin:/usr/bin",
  75                          NULL };
  76         int rc;
  77
  78         rc = call_usermodehelper(sh_path, argv, envp, UMH_WAIT_PROC);
  79         if (rc) {
  80                 splat_vprint(file, name,
  81                              "Failed command: %s %s %s (%d)\n",
  82                              argv[0], argv[1], cmd, rc);
  83                 return -EPERM;
  84         }
  85
  86         return 0;
  87 }
  88
  89 static int
  90 splat_vnode_unlink_all(struct file *file, void *arg, char *name)
  91 {
  92         char *cmds[] = { "rm -f " SPLAT_VNODE_TEST_FILE_RW,
  93                          "rm -f " SPLAT_VNODE_TEST_FILE_RW1,
  94                          "rm -f " SPLAT_VNODE_TEST_FILE_RW2,
  95                          NULL };
  96         int i = 0, rc = 0;
  97
  98         while (cmds[i] != NULL) {
  99                 if ((rc = splat_vnode_user_cmd(file, arg, name, cmds[i])))
 100                         return rc;
 101
 102                 i++;
 103         }
 104
 105         return rc;
 106 }
 107
 108 static int
 109 splat_vnode_test1(struct file *file, void *arg)
 110 {
 111         vnode_t *vp;
 112         int rc;
 113
 114         if ((rc = vn_open(SPLAT_VNODE_TEST_FILE, UIO_SYSSPACE,
 115                           FREAD, 0644, &vp, 0, 0))) {
 116                 splat_vprint(file, SPLAT_VNODE_TEST1_NAME,
 117                              "Failed to vn_open test file: %s (%d)\n",
 118                              SPLAT_VNODE_TEST_FILE, rc);
 119                 return -rc;
 120         }
 121
 122         rc = VOP_CLOSE(vp, 0, 0, 0, 0, 0);
 123
 124         if (rc) {
 125                 splat_vprint(file, SPLAT_VNODE_TEST1_NAME,
 126                              "Failed to vn_close test file: %s (%d)\n",
 127                              SPLAT_VNODE_TEST_FILE, rc);
 128                 return -rc;
 129         }
 130
 131         splat_vprint(file, SPLAT_VNODE_TEST1_NAME, "Successfully vn_open'ed "
 132                      "and vn_closed test file: %s\n", SPLAT_VNODE_TEST_FILE);
 133
 134         return -rc;
 135 } /* splat_vnode_test1() */
 136
 137 static int
 138 splat_vnode_test2(struct file *file, void *arg)
 139 {
 140         vnode_t *vp;
 141         int rc;
 142
 143         if ((rc = vn_openat(SPLAT_VNODE_TEST_FILE_AT, UIO_SYSSPACE,
 144                             FREAD, 0644, &vp, 0, 0, rootdir, 0))) {
 145                 splat_vprint(file, SPLAT_VNODE_TEST2_NAME,
 146                              "Failed to vn_openat test file: %s (%d)\n",
 147                              SPLAT_VNODE_TEST_FILE, rc);
 148                 return -rc;
 149         }
 150
 151         rc = VOP_CLOSE(vp, 0, 0, 0, 0, 0);
 152
 153         if (rc) {
 154                 splat_vprint(file, SPLAT_VNODE_TEST2_NAME,
 155                              "Failed to vn_close test file: %s (%d)\n",
 156                              SPLAT_VNODE_TEST_FILE, rc);
 157                 return -rc;
 158         }
 159
 160         splat_vprint(file, SPLAT_VNODE_TEST2_NAME, "Successfully vn_openat'ed "
 161                      "and vn_closed test file: %s\n", SPLAT_VNODE_TEST_FILE);
 162
 163         return -rc;
 164 } /* splat_vnode_test2() */
 165
 166 static int
 167 splat_vnode_test3(struct file *file, void *arg)
 168 {
 169         vnode_t *vp;
 170         char buf1[32] = "SPL VNode Interface Test File\n";
 171         char buf2[32] = "";
 172         int rc;
 173
 174         if ((rc = splat_vnode_unlink_all(file, arg, SPLAT_VNODE_TEST3_NAME)))
 175                 return rc;
 176
 177         if ((rc = vn_open(SPLAT_VNODE_TEST_FILE_RW, UIO_SYSSPACE,
 178                           FWRITE | FREAD | FCREAT | FEXCL,
 179                           0644, &vp, 0, 0))) {
 180                 splat_vprint(file, SPLAT_VNODE_TEST3_NAME,
 181                              "Failed to vn_open test file: %s (%d)\n",
 182                              SPLAT_VNODE_TEST_FILE_RW, rc);
 183                 return -rc;
 184         }
 185
 186         rc = vn_rdwr(UIO_WRITE, vp, buf1, strlen(buf1), 0,
 187                      UIO_SYSSPACE, 0, RLIM64_INFINITY, 0, NULL);
 188         if (rc) {
 189                 splat_vprint(file, SPLAT_VNODE_TEST3_NAME,
 190                              "Failed vn_rdwr write of test file: %s (%d)\n",
 191                              SPLAT_VNODE_TEST_FILE_RW, rc);
 192                 goto out;
 193         }
 194
 195         rc = vn_rdwr(UIO_READ, vp, buf2, strlen(buf1), 0,
 196                      UIO_SYSSPACE, 0, RLIM64_INFINITY, 0, NULL);
 197         if (rc) {
 198                 splat_vprint(file, SPLAT_VNODE_TEST3_NAME,
 199                              "Failed vn_rdwr read of test file: %s (%d)\n",
 200                              SPLAT_VNODE_TEST_FILE_RW, rc);
 201                 goto out;
 202         }
 203
 204         if (strncmp(buf1, buf2, strlen(buf1))) {
 205                 rc = EINVAL;
 206                 splat_vprint(file, SPLAT_VNODE_TEST3_NAME,
 207                              "Failed strncmp data written does not match "
 208                              "data read\nWrote: %sRead:  %s\n", buf1, buf2);
 209                 goto out;
 210         }
 211
 212         rc = 0;
 213         splat_vprint(file, SPLAT_VNODE_TEST3_NAME, "Wrote: %s", buf1);
 214         splat_vprint(file, SPLAT_VNODE_TEST3_NAME, "Read:  %s", buf2);
 215         splat_vprint(file, SPLAT_VNODE_TEST3_NAME, "Successfully wrote and "
 216                      "read expected data pattern to test file: %s\n",
 217                      SPLAT_VNODE_TEST_FILE_RW);
 218
 219 out:
 220         VOP_CLOSE(vp, 0, 0, 0, 0, 0);
 221         vn_remove(SPLAT_VNODE_TEST_FILE_RW, UIO_SYSSPACE, RMFILE);
 222
 223         return -rc;
 224 } /* splat_vnode_test3() */
 225
 226 #if LINUX_VERSION_CODE <= KERNEL_VERSION(4,1,0)
 227 static int
 228 splat_vnode_test4(struct file *file, void *arg)
 229 {
 230         vnode_t *vp;
 231         char buf1[32] = "SPL VNode Interface Test File\n";
 232         char buf2[32] = "";
 233         int rc;
 234
 235         if ((rc = splat_vnode_unlink_all(file, arg, SPLAT_VNODE_TEST4_NAME)))
 236                 return rc;
 237
 238         if ((rc = vn_open(SPLAT_VNODE_TEST_FILE_RW1, UIO_SYSSPACE,
 239                           FWRITE | FREAD | FCREAT | FEXCL, 0644, &vp, 0, 0))) {
 240                 splat_vprint(file, SPLAT_VNODE_TEST4_NAME,
 241                              "Failed to vn_open test file: %s (%d)\n",
 242                              SPLAT_VNODE_TEST_FILE_RW1, rc);
 243                 goto out;
 244         }
 245
 246         rc = vn_rdwr(UIO_WRITE, vp, buf1, strlen(buf1), 0,
 247                      UIO_SYSSPACE, 0, RLIM64_INFINITY, 0, NULL);
 248         if (rc) {
 249                 splat_vprint(file, SPLAT_VNODE_TEST4_NAME,
 250                              "Failed vn_rdwr write of test file: %s (%d)\n",
 251                              SPLAT_VNODE_TEST_FILE_RW1, rc);
 252                 goto out2;
 253         }
 254
 255         VOP_CLOSE(vp, 0, 0, 0, 0, 0);
 256
 257         rc = vn_rename(SPLAT_VNODE_TEST_FILE_RW1,SPLAT_VNODE_TEST_FILE_RW2,0);
 258         if (rc) {
 259                 splat_vprint(file, SPLAT_VNODE_TEST4_NAME, "Failed vn_rename "
 260                              "%s -> %s (%d)\n",
 261                              SPLAT_VNODE_TEST_FILE_RW1,
 262                              SPLAT_VNODE_TEST_FILE_RW2, rc);
 263                 goto out;
 264         }
 265
 266         if ((rc = vn_open(SPLAT_VNODE_TEST_FILE_RW2, UIO_SYSSPACE,
 267                           FREAD | FEXCL, 0644, &vp, 0, 0))) {
 268                 splat_vprint(file, SPLAT_VNODE_TEST4_NAME,
 269                              "Failed to vn_open test file: %s (%d)\n",
 270                              SPLAT_VNODE_TEST_FILE_RW2, rc);
 271                 goto out;
 272         }
 273
 274         rc = vn_rdwr(UIO_READ, vp, buf2, strlen(buf1), 0,
 275                      UIO_SYSSPACE, 0, RLIM64_INFINITY, 0, NULL);
 276         if (rc) {
 277                 splat_vprint(file, SPLAT_VNODE_TEST4_NAME,
 278                              "Failed vn_rdwr read of test file: %s (%d)\n",
 279                              SPLAT_VNODE_TEST_FILE_RW2, rc);
 280                 goto out2;
 281         }
 282
 283         if (strncmp(buf1, buf2, strlen(buf1))) {
 284                 rc = EINVAL;
 285                 splat_vprint(file, SPLAT_VNODE_TEST4_NAME,
 286                              "Failed strncmp data written does not match "
 287                              "data read\nWrote: %sRead:  %s\n", buf1, buf2);
 288                 goto out2;
 289         }
 290
 291         rc = 0;
 292         splat_vprint(file, SPLAT_VNODE_TEST4_NAME, "Wrote to %s:  %s",
 293                      SPLAT_VNODE_TEST_FILE_RW1, buf1);
 294         splat_vprint(file, SPLAT_VNODE_TEST4_NAME, "Read from %s: %s",
 295                      SPLAT_VNODE_TEST_FILE_RW2, buf2);
 296         splat_vprint(file, SPLAT_VNODE_TEST4_NAME, "Successfully renamed "
 297                      "test file %s -> %s and verified data pattern\n",
 298                      SPLAT_VNODE_TEST_FILE_RW1, SPLAT_VNODE_TEST_FILE_RW2);
 299 out2:
 300         VOP_CLOSE(vp, 0, 0, 0, 0, 0);
 301 out:
 302         vn_remove(SPLAT_VNODE_TEST_FILE_RW1, UIO_SYSSPACE, RMFILE);
 303         vn_remove(SPLAT_VNODE_TEST_FILE_RW2, UIO_SYSSPACE, RMFILE);
 304
 305         return -rc;
 306 } /* splat_vnode_test4() */
 307 #endif
 308
 309 static int
 310 splat_vnode_test5(struct file *file, void *arg)
 311 {
 312         vnode_t *vp;
 313         vattr_t vap;
 314         int rc;
 315
 316         if ((rc = vn_open(SPLAT_VNODE_TEST_FILE, UIO_SYSSPACE,
 317                           FREAD, 0644, &vp, 0, 0))) {
 318                 splat_vprint(file, SPLAT_VNODE_TEST5_NAME,
 319                              "Failed to vn_open test file: %s (%d)\n",
 320                              SPLAT_VNODE_TEST_FILE, rc);
 321                 return -rc;
 322         }
 323
 324         rc = VOP_GETATTR(vp, &vap, 0, 0, NULL);
 325         if (rc) {
 326                 splat_vprint(file, SPLAT_VNODE_TEST5_NAME,
 327                              "Failed to vn_getattr test file: %s (%d)\n",
 328                              SPLAT_VNODE_TEST_FILE, rc);
 329                 goto out;
 330         }
 331
 332         if (vap.va_type != VREG) {
 333                 rc = EINVAL;
 334                 splat_vprint(file, SPLAT_VNODE_TEST5_NAME,
 335                              "Failed expected regular file type "
 336                              "(%d != VREG): %s (%d)\n", vap.va_type,
 337                              SPLAT_VNODE_TEST_FILE, rc);
 338                 goto out;
 339         }
 340
 341         splat_vprint(file, SPLAT_VNODE_TEST1_NAME, "Successfully "
 342                      "vn_getattr'ed test file: %s\n", SPLAT_VNODE_TEST_FILE);
 343
 344 out:
 345         VOP_CLOSE(vp, 0, 0, 0, 0, 0);
 346
 347         return -rc;
 348 } /* splat_vnode_test5() */
 349
 350 static int
 351 splat_vnode_test6(struct file *file, void *arg)
 352 {
 353         vnode_t *vp;
 354         char buf[32] = "SPL VNode Interface Test File\n";
 355         int rc;
 356
 357         if ((rc = splat_vnode_unlink_all(file, arg, SPLAT_VNODE_TEST6_NAME)))
 358                 return rc;
 359
 360         if ((rc = vn_open(SPLAT_VNODE_TEST_FILE_RW, UIO_SYSSPACE,
 361                           FWRITE | FCREAT | FEXCL, 0644, &vp, 0, 0))) {
 362                 splat_vprint(file, SPLAT_VNODE_TEST6_NAME,
 363                              "Failed to vn_open test file: %s (%d)\n",
 364                              SPLAT_VNODE_TEST_FILE_RW, rc);
 365                 return -rc;
 366         }
 367
 368         rc = vn_rdwr(UIO_WRITE, vp, buf, strlen(buf), 0,
 369                      UIO_SYSSPACE, 0, RLIM64_INFINITY, 0, NULL);
 370         if (rc) {
 371                 splat_vprint(file, SPLAT_VNODE_TEST6_NAME,
 372                              "Failed vn_rdwr write of test file: %s (%d)\n",
 373                              SPLAT_VNODE_TEST_FILE_RW, rc);
 374                 goto out;
 375         }
 376
 377         rc = vn_fsync(vp, 0, 0, 0);
 378         if (rc) {
 379                 splat_vprint(file, SPLAT_VNODE_TEST6_NAME,
 380                              "Failed vn_fsync of test file: %s (%d)\n",
 381                              SPLAT_VNODE_TEST_FILE_RW, rc);
 382                 goto out;
 383         }
 384
 385         rc = 0;
 386         splat_vprint(file, SPLAT_VNODE_TEST6_NAME, "Successfully "
 387                      "fsync'ed test file %s\n", SPLAT_VNODE_TEST_FILE_RW);
 388 out:
 389         VOP_CLOSE(vp, 0, 0, 0, 0, 0);
 390         vn_remove(SPLAT_VNODE_TEST_FILE_RW, UIO_SYSSPACE, RMFILE);
 391
 392         return -rc;
 393 } /* splat_vnode_test6() */
 394
 395 splat_subsystem_t *
 396 splat_vnode_init(void)
 397 {
 398         splat_subsystem_t *sub;
 399
 400         sub = kmalloc(sizeof(*sub), GFP_KERNEL);
 401         if (sub == NULL)
 402                 return NULL;
 403
 404         memset(sub, 0, sizeof(*sub));
 405         strncpy(sub->desc.name, SPLAT_VNODE_NAME, SPLAT_NAME_SIZE);
 406         strncpy(sub->desc.desc, SPLAT_VNODE_DESC, SPLAT_DESC_SIZE);
 407         INIT_LIST_HEAD(&sub->subsystem_list);
 408         INIT_LIST_HEAD(&sub->test_list);
 409         spin_lock_init(&sub->test_lock);
 410         sub->desc.id = SPLAT_SUBSYSTEM_VNODE;
 411
 412         SPLAT_TEST_INIT(sub, SPLAT_VNODE_TEST1_NAME, SPLAT_VNODE_TEST1_DESC,
 413                         SPLAT_VNODE_TEST1_ID, splat_vnode_test1);
 414         SPLAT_TEST_INIT(sub, SPLAT_VNODE_TEST2_NAME, SPLAT_VNODE_TEST2_DESC,
 415                         SPLAT_VNODE_TEST2_ID, splat_vnode_test2);
 416         SPLAT_TEST_INIT(sub, SPLAT_VNODE_TEST3_NAME, SPLAT_VNODE_TEST3_DESC,
 417                         SPLAT_VNODE_TEST3_ID, splat_vnode_test3);
 418 #if LINUX_VERSION_CODE <= KERNEL_VERSION(4,1,0)
 419         SPLAT_TEST_INIT(sub, SPLAT_VNODE_TEST4_NAME, SPLAT_VNODE_TEST4_DESC,
 420                         SPLAT_VNODE_TEST4_ID, splat_vnode_test4);
 421 #endif
 422         SPLAT_TEST_INIT(sub, SPLAT_VNODE_TEST5_NAME, SPLAT_VNODE_TEST5_DESC,
 423                         SPLAT_VNODE_TEST5_ID, splat_vnode_test5);
 424         SPLAT_TEST_INIT(sub, SPLAT_VNODE_TEST6_NAME, SPLAT_VNODE_TEST6_DESC,
 425                         SPLAT_VNODE_TEST6_ID, splat_vnode_test6);
 426
 427         return sub;
 428 } /* splat_vnode_init() */
 429
 430 void
 431 splat_vnode_fini(splat_subsystem_t *sub)
 432 {
 433         ASSERT(sub);
 434
 435         SPLAT_TEST_FINI(sub, SPLAT_VNODE_TEST6_ID);
 436         SPLAT_TEST_FINI(sub, SPLAT_VNODE_TEST5_ID);
 437 #if LINUX_VERSION_CODE <= KERNEL_VERSION(4,1,0)
 438         SPLAT_TEST_FINI(sub, SPLAT_VNODE_TEST4_ID);
 439 #endif
 440         SPLAT_TEST_FINI(sub, SPLAT_VNODE_TEST3_ID);
 441         SPLAT_TEST_FINI(sub, SPLAT_VNODE_TEST2_ID);
 442         SPLAT_TEST_FINI(sub, SPLAT_VNODE_TEST1_ID);
 443
 444         kfree(sub);
 445 } /* splat_vnode_fini() */
 446
 447 int
 448 splat_vnode_id(void)
 449 {
 450         return SPLAT_SUBSYSTEM_VNODE;
 451 } /* splat_vnode_id() */