direct/fsx_test/yaffs_fsx.c

   1 /*
   2  * Copyright (c) 1998-2001 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.2 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  *
  22  *      WARNING--WARNING--WARNING
  23  *      This is not the original fsx.c. It has been modified to run with
  24  *      yaffs direct. Seek out the original fsx.c if you want to do anything
  25  *      else.
  26  *
  27  *
  28  *
  29  *      File:   fsx.c
  30  *      Author: Avadis Tevanian, Jr.
  31  *
  32  *      File system exerciser.
  33  *
  34  *      Rewrite and enhancements 1998-2001 Conrad Minshall -- conrad@mac.com
  35  *
  36  *      Various features from Joe Sokol, Pat Dirks, and Clark Warner.
  37  *
  38  *      Small changes to work under Linux -- davej@suse.de
  39  *
  40  *      Sundry porting patches from Guy Harris 12/2001
  41  *
  42  *      Checks for mmap last-page zero fill.
  43  *
  44  *      Modified heavily by Charles Manning to exercise via the
  45  *      yaffs direct interface.
  46  *
  47  */
  48
  49 #include <sys/types.h>
  50 #include <sys/stat.h>
  51 #ifdef _UWIN
  52 # include <sys/param.h>
  53 # include <limits.h>
  54 # include <time.h>
  55 # include <strings.h>
  56 #endif
  57 #include <fcntl.h>
  58 #include <sys/mman.h>
  59 #ifndef MAP_FILE
  60 # define MAP_FILE 0
  61 #endif
  62 #include <limits.h>
  63 #include <signal.h>
  64 #include <stdio.h>
  65 #include <stdlib.h>
  66 #include <string.h>
  67 #include <unistd.h>
  68 #include <stdarg.h>
  69 #include <errno.h>
  70
  71 #include "yaffsfs.h"
  72
  73 #define NUMPRINTCOLUMNS 32      /* # columns of data to print on each line */
  74
  75 /*
  76  *      A log entry is an operation and a bunch of arguments.
  77  */
  78
  79 struct log_entry {
  80         int     operation;
  81         int     args[3];
  82 };
  83
  84 #define LOGSIZE 1000
  85
  86 struct log_entry        oplog[LOGSIZE]; /* the log */
  87 int                     logptr = 0;     /* current position in log */
  88 int                     logcount = 0;   /* total ops */
  89
  90 /*
  91  *      Define operations
  92  */
  93
  94 #define OP_READ         1
  95 #define OP_WRITE        2
  96 #define OP_TRUNCATE     3
  97 #define OP_CLOSEOPEN    4
  98 #define OP_MAPREAD      5
  99 #define OP_MAPWRITE     6
 100 #define OP_SKIPPED      7
 101
 102 int page_size;
 103 int page_mask;
 104
 105 char    *original_buf;                  /* a pointer to the original data */
 106 char    *good_buf;                      /* a pointer to the correct data */
 107 char    *temp_buf;                      /* a pointer to the current data */
 108 char    *fname;                         /* name of our test file */
 109 int     fd;                             /* fd for our test file */
 110
 111 off_t           file_size = 0;
 112 off_t           biggest = 0;
 113 char            state[256];
 114 unsigned long   testcalls = 0;          /* calls to function "test" */
 115
 116 unsigned long   simulatedopcount = 0;   /* -b flag */
 117 int     closeprob = 0;                  /* -c flag */
 118 int     debug = 0;                      /* -d flag */
 119 unsigned long   debugstart = 0;         /* -D flag */
 120 unsigned long   maxfilelen = 256 * 1024;        /* -l flag */
 121 int     sizechecks = 1;                 /* -n flag disables them */
 122 int     maxoplen = 64 * 1024;           /* -o flag */
 123 int     quiet = 0;                      /* -q flag */
 124 unsigned long progressinterval = 0;     /* -p flag */
 125 int     readbdy = 1;                    /* -r flag */
 126 int     style = 0;                      /* -s flag */
 127 int     truncbdy = 1;                   /* -t flag */
 128 int     writebdy = 1;                   /* -w flag */
 129 long    monitorstart = -1;              /* -m flag */
 130 long    monitorend = -1;                /* -m flag */
 131 int     lite = 0;                       /* -L flag */
 132 long    numops = -1;                    /* -N flag */
 133 int     randomoplen = 1;                /* -O flag disables it */
 134 int     seed = 1;                       /* -S flag */
 135
 136 int     mapped_writes = 0;            /* yaffs direct does not support mmapped files */
 137 int     mapped_reads = 0;
 138
 139 int     fsxgoodfd = 0;
 140 FILE *  fsxlogf = NULL;
 141 int badoff = -1;
 142 int closeopen = 0;
 143
 144
 145 void
 146 vwarnc(code, fmt, ap)
 147         int code;
 148         const char *fmt;
 149         va_list ap;
 150 {
 151         fprintf(stderr, "fsx: ");
 152         if (fmt != NULL) {
 153                 vfprintf(stderr, fmt, ap);
 154                 fprintf(stderr, ": ");
 155         }
 156         fprintf(stderr, "%s\n", strerror(code));
 157 }
 158
 159
 160 void
 161 warn(const char * fmt, ...)
 162 {
 163         va_list ap;
 164         va_start(ap, fmt);
 165         vwarnc(errno, fmt, ap);
 166         va_end(ap);
 167 }
 168
 169
 170 void
 171 prt(char *fmt, ...)
 172 {
 173         va_list args;
 174
 175         va_start(args, fmt);
 176         vfprintf(stdout, fmt, args);
 177         if (fsxlogf)
 178                 vfprintf(fsxlogf, fmt, args);
 179         va_end(args);
 180 }
 181
 182 void
 183 prterr(char *prefix)
 184 {
 185         prt("%s%s%s\n", prefix, prefix ? ": " : "", strerror(errno));
 186 }
 187
 188
 189 void
 190 log4(int operation, int arg0, int arg1, int arg2)
 191 {
 192         struct log_entry *le;
 193
 194         le = &oplog[logptr];
 195         le->operation = operation;
 196         if (closeopen)
 197                 le->operation = ~ le->operation;
 198         le->args[0] = arg0;
 199         le->args[1] = arg1;
 200         le->args[2] = arg2;
 201         logptr++;
 202         logcount++;
 203         if (logptr >= LOGSIZE)
 204                 logptr = 0;
 205 }
 206
 207
 208 void
 209 logdump(void)
 210 {
 211         int     i, count, down;
 212         struct log_entry        *lp;
 213
 214         prt("LOG DUMP (%d total operations):\n", logcount);
 215         if (logcount < LOGSIZE) {
 216                 i = 0;
 217                 count = logcount;
 218         } else {
 219                 i = logptr;
 220                 count = LOGSIZE;
 221         }
 222         for ( ; count > 0; count--) {
 223                 int opnum;
 224
 225                 opnum = i+1 + (logcount/LOGSIZE)*LOGSIZE;
 226                 prt("%d(%d mod 256): ", opnum, opnum%256);
 227                 lp = &oplog[i];
 228                 if ((closeopen = lp->operation < 0))
 229                         lp->operation = ~ lp->operation;
 230
 231                 switch (lp->operation) {
 232                 case OP_MAPREAD:
 233                         prt("MAPREAD\t0x%x thru 0x%x\t(0x%x bytes)",
 234                             lp->args[0], lp->args[0] + lp->args[1] - 1,
 235                             lp->args[1]);
 236                         if (badoff >= lp->args[0] && badoff <
 237                                                      lp->args[0] + lp->args[1])
 238                                 prt("\t***RRRR***");
 239                         break;
 240                 case OP_MAPWRITE:
 241                         prt("MAPWRITE 0x%x thru 0x%x\t(0x%x bytes)",
 242                             lp->args[0], lp->args[0] + lp->args[1] - 1,
 243                             lp->args[1]);
 244                         if (badoff >= lp->args[0] && badoff <
 245                                                      lp->args[0] + lp->args[1])
 246                                 prt("\t******WWWW");
 247                         break;
 248                 case OP_READ:
 249                         prt("READ\t0x%x thru 0x%x\t(0x%x bytes)",
 250                             lp->args[0], lp->args[0] + lp->args[1] - 1,
 251                             lp->args[1]);
 252                         if (badoff >= lp->args[0] &&
 253                             badoff < lp->args[0] + lp->args[1])
 254                                 prt("\t***RRRR***");
 255                         break;
 256                 case OP_WRITE:
 257                         prt("WRITE\t0x%x thru 0x%x\t(0x%x bytes)",
 258                             lp->args[0], lp->args[0] + lp->args[1] - 1,
 259                             lp->args[1]);
 260                         if (lp->args[0] > lp->args[2])
 261                                 prt(" HOLE");
 262                         else if (lp->args[0] + lp->args[1] > lp->args[2])
 263                                 prt(" EXTEND");
 264                         if ((badoff >= lp->args[0] || badoff >=lp->args[2]) &&
 265                             badoff < lp->args[0] + lp->args[1])
 266                                 prt("\t***WWWW");
 267                         break;
 268                 case OP_TRUNCATE:
 269                         down = lp->args[0] < lp->args[1];
 270                         prt("TRUNCATE %s\tfrom 0x%x to 0x%x",
 271                             down ? "DOWN" : "UP", lp->args[1], lp->args[0]);
 272                         if (badoff >= lp->args[!down] &&
 273                             badoff < lp->args[!!down])
 274                                 prt("\t******WWWW");
 275                         break;
 276                 case OP_SKIPPED:
 277                         prt("SKIPPED (no operation)");
 278                         break;
 279                 default:
 280                         prt("BOGUS LOG ENTRY (operation code = %d)!",
 281                             lp->operation);
 282                 }
 283                 if (closeopen)
 284                         prt("\n\t\tCLOSE/OPEN");
 285                 prt("\n");
 286                 i++;
 287                 if (i == LOGSIZE)
 288                         i = 0;
 289         }
 290 }
 291
 292
 293 void
 294 save_buffer(char *buffer, off_t bufferlength, int fd)
 295 {
 296         off_t ret;
 297         ssize_t byteswritten;
 298
 299         if (fd <= 0 || bufferlength == 0)
 300                 return;
 301
 302         if (bufferlength > SSIZE_MAX) {
 303                 prt("fsx flaw: overflow in save_buffer\n");
 304                 exit(67);
 305         }
 306         if (lite) {
 307                 off_t size_by_seek = yaffs_lseek(fd, (off_t)0, SEEK_END);
 308                 if (size_by_seek == (off_t)-1)
 309                         prterr("save_buffer: lseek eof");
 310                 else if (bufferlength > size_by_seek) {
 311                         warn("save_buffer: .fsxgood file too short... will save 0x%llx bytes instead of 0x%llx\n", (unsigned long long)size_by_seek,
 312                              (unsigned long long)bufferlength);
 313                         bufferlength = size_by_seek;
 314                 }
 315         }
 316
 317         ret = yaffs_lseek(fd, (off_t)0, SEEK_SET);
 318         if (ret == (off_t)-1)
 319                 prterr("save_buffer: lseek 0");
 320
 321         byteswritten = yaffs_write(fd, buffer, (size_t)bufferlength);
 322         if (byteswritten != bufferlength) {
 323                 if (byteswritten == -1)
 324                         prterr("save_buffer write");
 325                 else
 326                         warn("save_buffer: short write, 0x%x bytes instead of 0x%llx\n",
 327                              (unsigned)byteswritten,
 328                              (unsigned long long)bufferlength);
 329         }
 330 }
 331
 332
 333 void
 334 report_failure(int status)
 335 {
 336         logdump();
 337
 338         if (fsxgoodfd) {
 339                 if (good_buf) {
 340                         save_buffer(good_buf, file_size, fsxgoodfd);
 341                         prt("Correct content saved for comparison\n");
 342                         prt("(maybe hexdump \"%s\" vs \"%s.fsxgood\")\n",
 343                             fname, fname);
 344                 }
 345                 close(fsxgoodfd);
 346         }
 347         prt("Exiting with %d\n",status);
 348         exit(status);
 349 }
 350
 351
 352 #define short_at(cp) ((unsigned short)((*((unsigned char *)(cp)) << 8) | \
 353                                         *(((unsigned char *)(cp)) + 1)))
 354
 355 void
 356 check_buffers(unsigned offset, unsigned size)
 357 {
 358         unsigned char c, t;
 359         unsigned i = 0;
 360         unsigned n = 0;
 361         unsigned op = 0;
 362         unsigned bad = 0;
 363
 364         if (memcmp(good_buf + offset, temp_buf, size) != 0) {
 365                 prt("READ BAD DATA: offset = 0x%x, size = 0x%x\n",
 366                     offset, size);
 367                 prt("OFFSET\tGOOD\tBAD\tRANGE\n");
 368                 while (size > 0) {
 369                         c = good_buf[offset];
 370                         t = temp_buf[i];
 371                         if (c != t) {
 372                                 if (n == 0) {
 373                                         bad = short_at(&temp_buf[i]);
 374                                         prt("0x%5x\t0x%04x\t0x%04x", offset,
 375                                             short_at(&good_buf[offset]), bad);
 376                                         op = temp_buf[offset & 1 ? i+1 : i];
 377                                 }
 378                                 n++;
 379                                 badoff = offset;
 380                         }
 381                         offset++;
 382                         i++;
 383                         size--;
 384                 }
 385                 if (n) {
 386                         prt("\t0x%5x\n", n);
 387                         if (bad)
 388                                 prt("operation# (mod 256) for the bad data may be %u\n", ((unsigned)op & 0xff));
 389                         else
 390                                 prt("operation# (mod 256) for the bad data unknown, check HOLE and EXTEND ops\n");
 391                 } else
 392                         prt("????????????????\n");
 393                 report_failure(110);
 394         }
 395 }
 396
 397
 398 void
 399 check_size(void)
 400 {
 401         struct yaffs_stat       statbuf;
 402         off_t   size_by_seek;
 403
 404         if (yaffs_fstat(fd, &statbuf)) {
 405                 prterr("check_size: fstat");
 406                 statbuf.st_size = -1;
 407         }
 408         size_by_seek = yaffs_lseek(fd, (off_t)0, SEEK_END);
 409         if (file_size != statbuf.st_size || file_size != size_by_seek) {
 410                 prt("Size error: expected 0x%llx stat 0x%llx seek 0x%llx\n",
 411                     (unsigned long long)file_size,
 412                     (unsigned long long)statbuf.st_size,
 413                     (unsigned long long)size_by_seek);
 414                 report_failure(120);
 415         }
 416 }
 417
 418
 419 void
 420 check_trunc_hack(void)
 421 {
 422         struct yaffs_stat statbuf;
 423
 424         yaffs_truncate(fd, (off_t)0);
 425         yaffs_truncate(fd, (off_t)100000);
 426         yaffs_fstat(fd, &statbuf);
 427         if (statbuf.st_size != (off_t)100000) {
 428                 prt("no extend on truncate! not posix!\n");
 429                 exit(130);
 430         }
 431         yaffs_truncate(fd, (off_t)0);
 432 }
 433
 434
 435 void
 436 doread(unsigned offset, unsigned size)
 437 {
 438         off_t ret;
 439         unsigned iret;
 440
 441         offset -= offset % readbdy;
 442         if (size == 0) {
 443                 if (!quiet && testcalls > simulatedopcount)
 444                         prt("skipping zero size read\n");
 445                 log4(OP_SKIPPED, OP_READ, offset, size);
 446                 return;
 447         }
 448         if (size + offset > file_size) {
 449                 if (!quiet && testcalls > simulatedopcount)
 450                         prt("skipping seek/read past end of file\n");
 451                 log4(OP_SKIPPED, OP_READ, offset, size);
 452                 return;
 453         }
 454
 455         log4(OP_READ, offset, size, 0);
 456
 457         if (testcalls <= simulatedopcount)
 458                 return;
 459
 460         if (!quiet && ((progressinterval &&
 461                         testcalls % progressinterval == 0) ||
 462                        (debug &&
 463                         (monitorstart == -1 ||
 464                          (offset + size > monitorstart &&
 465                           (monitorend == -1 || offset <= monitorend))))))
 466                 prt("%lu read\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
 467                     offset, offset + size - 1, size);
 468         ret = yaffs_lseek(fd, (off_t)offset, SEEK_SET);
 469         if (ret == (off_t)-1) {
 470                 prterr("doread: lseek");
 471                 report_failure(140);
 472         }
 473         iret = yaffs_read(fd, temp_buf, size);
 474         if (iret != size) {
 475                 if (iret == -1)
 476                         prterr("doread: read");
 477                 else
 478                         prt("short read: 0x%x bytes instead of 0x%x\n",
 479                             iret, size);
 480                 report_failure(141);
 481         }
 482         check_buffers(offset, size);
 483 }
 484
 485
 486
 487
 488
 489 void
 490 gendata(char *original_buf, char *good_buf, unsigned offset, unsigned size)
 491 {
 492         while (size--) {
 493                 good_buf[offset] = testcalls % 256;
 494                 if (offset % 2)
 495                         good_buf[offset] += original_buf[offset];
 496                 offset++;
 497         }
 498 }
 499
 500
 501 void
 502 dowrite(unsigned offset, unsigned size)
 503 {
 504         off_t ret;
 505         unsigned iret;
 506
 507         offset -= offset % writebdy;
 508         if (size == 0) {
 509                 if (!quiet && testcalls > simulatedopcount)
 510                         prt("skipping zero size write\n");
 511                 log4(OP_SKIPPED, OP_WRITE, offset, size);
 512                 return;
 513         }
 514
 515         log4(OP_WRITE, offset, size, file_size);
 516
 517         gendata(original_buf, good_buf, offset, size);
 518         if (file_size < offset + size) {
 519                 if (file_size < offset)
 520                         memset(good_buf + file_size, '\0', offset - file_size);
 521                 file_size = offset + size;
 522                 if (lite) {
 523                         warn("Lite file size bug in fsx!");
 524                         report_failure(149);
 525                 }
 526         }
 527
 528         if (testcalls <= simulatedopcount)
 529                 return;
 530
 531         if (!quiet && ((progressinterval &&
 532                         testcalls % progressinterval == 0) ||
 533                        (debug &&
 534                         (monitorstart == -1 ||
 535                          (offset + size > monitorstart &&
 536                           (monitorend == -1 || offset <= monitorend))))))
 537                 prt("%lu write\t0x%x thru\t0x%x\t(0x%x bytes)\n", testcalls,
 538                     offset, offset + size - 1, size);
 539         ret = yaffs_lseek(fd, (off_t)offset, SEEK_SET);
 540         if (ret == (off_t)-1) {
 541                 prterr("dowrite: lseek");
 542                 report_failure(150);
 543         }
 544         iret = yaffs_write(fd, good_buf + offset, size);
 545         if (iret != size) {
 546                 if (iret == -1)
 547                         prterr("dowrite: write");
 548                 else
 549                         prt("short write: 0x%x bytes instead of 0x%x\n",
 550                             iret, size);
 551                 report_failure(151);
 552         }
 553 }
 554
 555
 556
 557 void
 558 dotruncate(unsigned size)
 559 {
 560         int oldsize = file_size;
 561
 562         size -= size % truncbdy;
 563         if (size > biggest) {
 564                 biggest = size;
 565                 if (!quiet && testcalls > simulatedopcount)
 566                         prt("truncating to largest ever: 0x%x\n", size);
 567         }
 568
 569         log4(OP_TRUNCATE, size, (unsigned)file_size, 0);
 570
 571         if (size > file_size)
 572                 memset(good_buf + file_size, '\0', size - file_size);
 573         file_size = size;
 574
 575         if (testcalls <= simulatedopcount)
 576                 return;
 577
 578         if ((progressinterval && testcalls % progressinterval == 0) ||
 579             (debug && (monitorstart == -1 || monitorend == -1 ||
 580                        size <= monitorend)))
 581                 prt("%lu trunc\tfrom 0x%x to 0x%x\n", testcalls, oldsize, size);
 582         if (yaffs_truncate(fd, (off_t)size) == -1) {
 583                 prt("ftruncate1: %x\n", size);
 584                 prterr("dotruncate: ftruncate");
 585                 report_failure(160);
 586         }
 587 }
 588
 589
 590 void
 591 writefileimage()
 592 {
 593         ssize_t iret;
 594
 595         if (yaffs_lseek(fd, (off_t)0, SEEK_SET) == (off_t)-1) {
 596                 prterr("writefileimage: lseek");
 597                 report_failure(171);
 598         }
 599         iret = yaffs_write(fd, good_buf, file_size);
 600         if ((off_t)iret != file_size) {
 601                 if (iret == -1)
 602                         prterr("writefileimage: write");
 603                 else
 604                         prt("short write: 0x%x bytes instead of 0x%llx\n",
 605                             iret, (unsigned long long)file_size);
 606                 report_failure(172);
 607         }
 608         if (lite ? 0 : yaffs_truncate(fd, file_size) == -1) {
 609                 prt("ftruncate2: %llx\n", (unsigned long long)file_size);
 610                 prterr("writefileimage: ftruncate");
 611                 report_failure(173);
 612         }
 613 }
 614
 615
 616 void
 617 docloseopen(void)
 618 {
 619         if (testcalls <= simulatedopcount)
 620                 return;
 621
 622         if (debug)
 623                 prt("%lu close/open\n", testcalls);
 624         if (yaffs_close(fd)) {
 625                 prterr("docloseopen: close");
 626                 report_failure(180);
 627         }
 628         fd = yaffs_open(fname, O_RDWR, 0);
 629         if (fd < 0) {
 630                 prterr("docloseopen: open");
 631                 report_failure(181);
 632         }
 633 }
 634
 635
 636 void
 637 test(void)
 638 {
 639         unsigned long   offset;
 640         unsigned long   size = maxoplen;
 641         unsigned long   rv = random();
 642         unsigned long   op = rv % (3 + !lite + mapped_writes);
 643
 644         /* turn off the map read if necessary */
 645
 646         if (op == 2 && !mapped_reads)
 647             op = 0;
 648
 649         if (simulatedopcount > 0 && testcalls == simulatedopcount)
 650                 writefileimage();
 651
 652         testcalls++;
 653
 654         if (closeprob)
 655                 closeopen = (rv >> 3) < (1 << 28) / closeprob;
 656
 657         if (debugstart > 0 && testcalls >= debugstart)
 658                 debug = 1;
 659
 660         if (!quiet && testcalls < simulatedopcount && testcalls % 100000 == 0)
 661                 prt("%lu...\n", testcalls);
 662
 663         /*
 664          * READ:        op = 0
 665          * WRITE:       op = 1
 666          * MAPREAD:     op = 2
 667          * TRUNCATE:    op = 3
 668          * MAPWRITE:    op = 3 or 4
 669          */
 670         if (lite ? 0 : op == 3 && (style & 1) == 0) /* vanilla truncate? */
 671                 dotruncate(random() % maxfilelen);
 672         else {
 673                 if (randomoplen)
 674                         size = random() % (maxoplen+1);
 675                 if (lite ? 0 : op == 3)
 676                         dotruncate(size);
 677                 else {
 678                         offset = random();
 679                         if (op == 1 || op == (lite ? 3 : 4)) {
 680                                 offset %= maxfilelen;
 681                                 if (offset + size > maxfilelen)
 682                                         size = maxfilelen - offset;
 683                                 dowrite(offset, size);
 684                         } else {
 685                                 if (file_size)
 686                                         offset %= file_size;
 687                                 else
 688                                         offset = 0;
 689                                 if (offset + size > file_size)
 690                                         size = file_size - offset;
 691                                 doread(offset, size);
 692                         }
 693                 }
 694         }
 695         if (sizechecks && testcalls > simulatedopcount)
 696                 check_size();
 697         if (closeopen)
 698                 docloseopen();
 699 }
 700
 701
 702 void
 703 cleanup(sig)
 704         int     sig;
 705 {
 706         if (sig)
 707                 prt("signal %d\n", sig);
 708         prt("testcalls = %lu\n", testcalls);
 709         exit(sig);
 710 }
 711
 712
 713 void
 714 usage(void)
 715 {
 716         fprintf(stdout, "usage: %s",
 717                 "fsx [-dnqLOW] [-b opnum] [-c Prob] [-l flen] [-m start:end] [-o oplen] [-p progressinterval] [-r readbdy] [-s style] [-t truncbdy] [-w writebdy] [-D startingop] [-N numops] [-P dirpath] [-S seed] fname\n\
 718         -b opnum: beginning operation number (default 1)\n\
 719         -c P: 1 in P chance of file close+open at each op (default infinity)\n\
 720         -d: debug output for all operations\n\
 721         -l flen: the upper bound on file size (default 262144)\n\
 722         -m startop:endop: monitor (print debug output) specified byte range (default 0:infinity)\n\
 723         -n: no verifications of file size\n\
 724         -o oplen: the upper bound on operation size (default 65536)\n\
 725         -p progressinterval: debug output at specified operation interval\n\
 726         -q: quieter operation\n\
 727         -r readbdy: 4096 would make reads page aligned (default 1)\n\
 728         -s style: 1 gives smaller truncates (default 0)\n\
 729         -t truncbdy: 4096 would make truncates page aligned (default 1)\n\
 730         -w writebdy: 4096 would make writes page aligned (default 1)\n\
 731         -D startingop: debug output starting at specified operation\n\
 732         -L: fsxLite - no file creations & no file size changes\n\
 733         -N numops: total # operations to do (default infinity)\n\
 734         -O: use oplen (see -o flag) for every op (default random)\n\
 735         -P dirpath: save .fsxlog and .fsxgood files in dirpath (default ./)\n\
 736         -S seed: for random # generator (default 1) 0 gets timestamp\n\
 737         fname: this filename is REQUIRED (no default)\n");
 738         exit(90);
 739 }
 740
 741
 742 int
 743 getnum(char *s, char **e)
 744 {
 745         int ret = -1;
 746
 747         *e = (char *) 0;
 748         ret = strtol(s, e, 0);
 749         if (*e)
 750                 switch (**e) {
 751                 case 'b':
 752                 case 'B':
 753                         ret *= 512;
 754                         *e = *e + 1;
 755                         break;
 756                 case 'k':
 757                 case 'K':
 758                         ret *= 1024;
 759                         *e = *e + 1;
 760                         break;
 761                 case 'm':
 762                 case 'M':
 763                         ret *= 1024*1024;
 764                         *e = *e + 1;
 765                         break;
 766                 case 'w':
 767                 case 'W':
 768                         ret *= 4;
 769                         *e = *e + 1;
 770                         break;
 771                 }
 772         return (ret);
 773 }
 774
 775
 776 int
 777 main(int argc, char **argv)
 778 {
 779         int     i, style, ch;
 780         char    *endp;
 781         char goodfile[1024];
 782         char logfile[1024];
 783
 784         goodfile[0] = 0;
 785         logfile[0] = 0;
 786
 787         page_size = getpagesize();
 788         page_mask = page_size - 1;
 789
 790         setvbuf(stdout, (char *)0, _IOLBF, 0); /* line buffered stdout */
 791
 792         while ((ch = getopt(argc, argv, "b:c:dl:m:no:p:qr:s:t:w:D:LN:OP:RS:W"))
 793                != EOF)
 794                 switch (ch) {
 795                 case 'b':
 796                         simulatedopcount = getnum(optarg, &endp);
 797                         if (!quiet)
 798                                 fprintf(stdout, "Will begin at operation %ld\n",
 799                                         simulatedopcount);
 800                         if (simulatedopcount == 0)
 801                                 usage();
 802                         simulatedopcount -= 1;
 803                         break;
 804                 case 'c':
 805                         closeprob = getnum(optarg, &endp);
 806                         if (!quiet)
 807                                 fprintf(stdout,
 808                                         "Chance of close/open is 1 in %d\n",
 809                                         closeprob);
 810                         if (closeprob <= 0)
 811                                 usage();
 812                         break;
 813                 case 'd':
 814                         debug = 1;
 815                         break;
 816                 case 'l':
 817                         maxfilelen = getnum(optarg, &endp);
 818                         if (maxfilelen <= 0)
 819                                 usage();
 820                         break;
 821                 case 'm':
 822                         monitorstart = getnum(optarg, &endp);
 823                         if (monitorstart < 0)
 824                                 usage();
 825                         if (!endp || *endp++ != ':')
 826                                 usage();
 827                         monitorend = getnum(endp, &endp);
 828                         if (monitorend < 0)
 829                                 usage();
 830                         if (monitorend == 0)
 831                                 monitorend = -1; /* aka infinity */
 832                         debug = 1;
 833                 case 'n':
 834                         sizechecks = 0;
 835                         break;
 836                 case 'o':
 837                         maxoplen = getnum(optarg, &endp);
 838                         if (maxoplen <= 0)
 839                                 usage();
 840                         break;
 841                 case 'p':
 842                         progressinterval = getnum(optarg, &endp);
 843                         if (progressinterval < 0)
 844                                 usage();
 845                         break;
 846                 case 'q':
 847                         quiet = 1;
 848                         break;
 849                 case 'r':
 850                         readbdy = getnum(optarg, &endp);
 851                         if (readbdy <= 0)
 852                                 usage();
 853                         break;
 854                 case 's':
 855                         style = getnum(optarg, &endp);
 856                         if (style < 0 || style > 1)
 857                                 usage();
 858                         break;
 859                 case 't':
 860                         truncbdy = getnum(optarg, &endp);
 861                         if (truncbdy <= 0)
 862                                 usage();
 863                         break;
 864                 case 'w':
 865                         writebdy = getnum(optarg, &endp);
 866                         if (writebdy <= 0)
 867                                 usage();
 868                         break;
 869                 case 'D':
 870                         debugstart = getnum(optarg, &endp);
 871                         if (debugstart < 1)
 872                                 usage();
 873                         break;
 874                 case 'L':
 875                         lite = 1;
 876                         break;
 877                 case 'N':
 878                         numops = getnum(optarg, &endp);
 879                         if (numops < 0)
 880                                 usage();
 881                         break;
 882                 case 'O':
 883                         randomoplen = 0;
 884                         break;
 885                 case 'P':
 886                         strncpy(goodfile, optarg, sizeof(goodfile));
 887                         strcat(goodfile, "/");
 888                         strncpy(logfile, optarg, sizeof(logfile));
 889                         strcat(logfile, "/");
 890                         break;
 891                 case 'R':
 892                         mapped_reads = 0;
 893                         break;
 894                 case 'S':
 895                         seed = getnum(optarg, &endp);
 896                         if (seed == 0)
 897                                 seed = time(0) % 10000;
 898                         if (!quiet)
 899                                 fprintf(stdout, "Seed set to %d\n", seed);
 900                         if (seed < 0)
 901                                 usage();
 902                         break;
 903                 case 'W':
 904                         mapped_writes = 0;
 905                         if (!quiet)
 906                                 fprintf(stdout, "mapped writes DISABLED\n");
 907                         break;
 908
 909                 default:
 910                         usage();
 911                         /* NOTREACHED */
 912                 }
 913         argc -= optind;
 914         argv += optind;
 915
 916         yaffs_StartUp();
 917         yaffs_mount("/flash/flash");
 918
 919         fname = "/flash/flash/fsxdata";
 920
 921         signal(SIGHUP,  cleanup);
 922         signal(SIGINT,  cleanup);
 923         signal(SIGPIPE, cleanup);
 924         signal(SIGALRM, cleanup);
 925         signal(SIGTERM, cleanup);
 926         signal(SIGXCPU, cleanup);
 927         signal(SIGXFSZ, cleanup);
 928         signal(SIGVTALRM,       cleanup);
 929         signal(SIGUSR1, cleanup);
 930         signal(SIGUSR2, cleanup);
 931
 932         initstate(seed, state, 256);
 933         setstate(state);
 934         fd = yaffs_open(fname, O_RDWR|(lite ? 0 : O_CREAT|O_TRUNC), 0666);
 935         if (fd < 0) {
 936                 prterr(fname);
 937                 exit(91);
 938         }
 939         strncat(goodfile, fname, 256);
 940         strcat (goodfile, ".fsxgood");
 941         fsxgoodfd = yaffs_open(goodfile, O_RDWR|O_CREAT|O_TRUNC, 0666);
 942         if (fsxgoodfd < 0) {
 943                 prterr(goodfile);
 944                 exit(92);
 945         }
 946         strncat(logfile, "fsx", 256);
 947         strcat (logfile, ".fsxlog");
 948         fsxlogf = fopen(logfile, "w");
 949         if (fsxlogf == NULL) {
 950                 prterr(logfile);
 951                 exit(93);
 952         }
 953         if (lite) {
 954                 off_t ret;
 955                 file_size = maxfilelen = yaffs_lseek(fd, (off_t)0, SEEK_END);
 956                 if (file_size == (off_t)-1) {
 957                         prterr(fname);
 958                         warn("main: lseek eof");
 959                         exit(94);
 960                 }
 961                 ret = yaffs_lseek(fd, (off_t)0, SEEK_SET);
 962                 if (ret == (off_t)-1) {
 963                         prterr(fname);
 964                         warn("main: lseek 0");
 965                         exit(95);
 966                 }
 967         }
 968         original_buf = (char *) malloc(maxfilelen);
 969         for (i = 0; i < maxfilelen; i++)
 970                 original_buf[i] = random() % 256;
 971         good_buf = (char *) malloc(maxfilelen);
 972         memset(good_buf, '\0', maxfilelen);
 973         temp_buf = (char *) malloc(maxoplen);
 974         memset(temp_buf, '\0', maxoplen);
 975         if (lite) {     /* zero entire existing file */
 976                 ssize_t written;
 977
 978                 written = yaffs_write(fd, good_buf, (size_t)maxfilelen);
 979                 if (written != maxfilelen) {
 980                         if (written == -1) {
 981                                 prterr(fname);
 982                                 warn("main: error on write");
 983                         } else
 984                                 warn("main: short write, 0x%x bytes instead of 0x%x\n",
 985                                      (unsigned)written, maxfilelen);
 986                         exit(98);
 987                 }
 988         } else
 989                 check_trunc_hack();
 990
 991         while (numops == -1 || numops--)
 992                 test();
 993
 994         if (yaffs_close(fd)) {
 995                 prterr("close");
 996                 report_failure(99);
 997         }
 998
 999         yaffs_close(fsxgoodfd);
1000
1001         yaffs_unmount("flash/flash");
1002         prt("All operations completed A-OK!\n");
1003
1004         exit(0);
1005         return 0;
1006 }
1007