1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2004-2006 Pawel Jakub Dawidek <pjd@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/kernel.h> 35 #include <sys/module.h> 36 #include <sys/lock.h> 37 #include <sys/mutex.h> 38 #include <sys/bio.h> 39 #include <sys/sbuf.h> 40 #include <sys/sysctl.h> 41 #include <sys/malloc.h> 42 #include <geom/geom.h> 43 #include <geom/nop/g_nop.h> 44 45 46 SYSCTL_DECL(_kern_geom); 47 static SYSCTL_NODE(_kern_geom, OID_AUTO, nop, CTLFLAG_RW, 0, "GEOM_NOP stuff"); 48 static u_int g_nop_debug = 0; 49 SYSCTL_UINT(_kern_geom_nop, OID_AUTO, debug, CTLFLAG_RW, &g_nop_debug, 0, 50 "Debug level"); 51 52 static int g_nop_destroy(struct g_geom *gp, boolean_t force); 53 static int g_nop_destroy_geom(struct gctl_req *req, struct g_class *mp, 54 struct g_geom *gp); 55 static void g_nop_config(struct gctl_req *req, struct g_class *mp, 56 const char *verb); 57 static void g_nop_dumpconf(struct sbuf *sb, const char *indent, 58 struct g_geom *gp, struct g_consumer *cp, struct g_provider *pp); 59 60 struct g_class g_nop_class = { 61 .name = G_NOP_CLASS_NAME, 62 .version = G_VERSION, 63 .ctlreq = g_nop_config, 64 .destroy_geom = g_nop_destroy_geom 65 }; 66 67 68 static void 69 g_nop_orphan(struct g_consumer *cp) 70 { 71 72 g_topology_assert(); 73 g_nop_destroy(cp->geom, 1); 74 } 75 76 static void 77 g_nop_resize(struct g_consumer *cp) 78 { 79 struct g_nop_softc *sc; 80 struct g_geom *gp; 81 struct g_provider *pp; 82 off_t size; 83 84 g_topology_assert(); 85 86 gp = cp->geom; 87 sc = gp->softc; 88 89 if (sc->sc_explicitsize != 0) 90 return; 91 if (cp->provider->mediasize < sc->sc_offset) { 92 g_nop_destroy(gp, 1); 93 return; 94 } 95 size = cp->provider->mediasize - sc->sc_offset; 96 LIST_FOREACH(pp, &gp->provider, provider) 97 g_resize_provider(pp, size); 98 } 99 100 static void 101 g_nop_start(struct bio *bp) 102 { 103 struct g_nop_softc *sc; 104 struct g_geom *gp; 105 struct g_provider *pp; 106 struct bio *cbp; 107 u_int failprob = 0; 108 109 gp = bp->bio_to->geom; 110 sc = gp->softc; 111 G_NOP_LOGREQ(bp, "Request received."); 112 mtx_lock(&sc->sc_lock); 113 switch (bp->bio_cmd) { 114 case BIO_READ: 115 sc->sc_reads++; 116 sc->sc_readbytes += bp->bio_length; 117 failprob = sc->sc_rfailprob; 118 break; 119 case BIO_WRITE: 120 sc->sc_writes++; 121 sc->sc_wrotebytes += bp->bio_length; 122 failprob = sc->sc_wfailprob; 123 break; 124 case BIO_DELETE: 125 sc->sc_deletes++; 126 break; 127 case BIO_GETATTR: 128 sc->sc_getattrs++; 129 break; 130 case BIO_FLUSH: 131 sc->sc_flushes++; 132 break; 133 case BIO_CMD0: 134 sc->sc_cmd0s++; 135 break; 136 case BIO_CMD1: 137 sc->sc_cmd1s++; 138 break; 139 case BIO_CMD2: 140 sc->sc_cmd2s++; 141 break; 142 } 143 mtx_unlock(&sc->sc_lock); 144 if (failprob > 0) { 145 u_int rval; 146 147 rval = arc4random() % 100; 148 if (rval < failprob) { 149 G_NOP_LOGREQLVL(1, bp, "Returning error=%d.", sc->sc_error); 150 g_io_deliver(bp, sc->sc_error); 151 return; 152 } 153 } 154 cbp = g_clone_bio(bp); 155 if (cbp == NULL) { 156 g_io_deliver(bp, ENOMEM); 157 return; 158 } 159 cbp->bio_done = g_std_done; 160 cbp->bio_offset = bp->bio_offset + sc->sc_offset; 161 pp = LIST_FIRST(&gp->provider); 162 KASSERT(pp != NULL, ("NULL pp")); 163 cbp->bio_to = pp; 164 G_NOP_LOGREQ(cbp, "Sending request."); 165 g_io_request(cbp, LIST_FIRST(&gp->consumer)); 166 } 167 168 static int 169 g_nop_access(struct g_provider *pp, int dr, int dw, int de) 170 { 171 struct g_geom *gp; 172 struct g_consumer *cp; 173 int error; 174 175 gp = pp->geom; 176 cp = LIST_FIRST(&gp->consumer); 177 error = g_access(cp, dr, dw, de); 178 179 return (error); 180 } 181 182 static int 183 g_nop_create(struct gctl_req *req, struct g_class *mp, struct g_provider *pp, 184 int ioerror, u_int rfailprob, u_int wfailprob, off_t offset, off_t size, 185 u_int secsize, u_int stripesize, u_int stripeoffset) 186 { 187 struct g_nop_softc *sc; 188 struct g_geom *gp; 189 struct g_provider *newpp; 190 struct g_consumer *cp; 191 char name[64]; 192 int error; 193 off_t explicitsize; 194 195 g_topology_assert(); 196 197 gp = NULL; 198 newpp = NULL; 199 cp = NULL; 200 201 if ((offset % pp->sectorsize) != 0) { 202 gctl_error(req, "Invalid offset for provider %s.", pp->name); 203 return (EINVAL); 204 } 205 if ((size % pp->sectorsize) != 0) { 206 gctl_error(req, "Invalid size for provider %s.", pp->name); 207 return (EINVAL); 208 } 209 if (offset >= pp->mediasize) { 210 gctl_error(req, "Invalid offset for provider %s.", pp->name); 211 return (EINVAL); 212 } 213 explicitsize = size; 214 if (size == 0) 215 size = pp->mediasize - offset; 216 if (offset + size > pp->mediasize) { 217 gctl_error(req, "Invalid size for provider %s.", pp->name); 218 return (EINVAL); 219 } 220 if (secsize == 0) 221 secsize = pp->sectorsize; 222 else if ((secsize % pp->sectorsize) != 0) { 223 gctl_error(req, "Invalid secsize for provider %s.", pp->name); 224 return (EINVAL); 225 } 226 if (secsize > MAXPHYS) { 227 gctl_error(req, "secsize is too big."); 228 return (EINVAL); 229 } 230 size -= size % secsize; 231 if ((stripesize % pp->sectorsize) != 0) { 232 gctl_error(req, "Invalid stripesize for provider %s.", pp->name); 233 return (EINVAL); 234 } 235 if ((stripeoffset % pp->sectorsize) != 0) { 236 gctl_error(req, "Invalid stripeoffset for provider %s.", pp->name); 237 return (EINVAL); 238 } 239 if (stripesize != 0 && stripeoffset >= stripesize) { 240 gctl_error(req, "stripeoffset is too big."); 241 return (EINVAL); 242 } 243 snprintf(name, sizeof(name), "%s%s", pp->name, G_NOP_SUFFIX); 244 LIST_FOREACH(gp, &mp->geom, geom) { 245 if (strcmp(gp->name, name) == 0) { 246 gctl_error(req, "Provider %s already exists.", name); 247 return (EEXIST); 248 } 249 } 250 gp = g_new_geomf(mp, "%s", name); 251 sc = g_malloc(sizeof(*sc), M_WAITOK | M_ZERO); 252 sc->sc_offset = offset; 253 sc->sc_explicitsize = explicitsize; 254 sc->sc_stripesize = stripesize; 255 sc->sc_stripeoffset = stripeoffset; 256 sc->sc_error = ioerror; 257 sc->sc_rfailprob = rfailprob; 258 sc->sc_wfailprob = wfailprob; 259 sc->sc_reads = 0; 260 sc->sc_writes = 0; 261 sc->sc_deletes = 0; 262 sc->sc_getattrs = 0; 263 sc->sc_flushes = 0; 264 sc->sc_cmd0s = 0; 265 sc->sc_cmd1s = 0; 266 sc->sc_cmd2s = 0; 267 sc->sc_readbytes = 0; 268 sc->sc_wrotebytes = 0; 269 mtx_init(&sc->sc_lock, "gnop lock", NULL, MTX_DEF); 270 gp->softc = sc; 271 gp->start = g_nop_start; 272 gp->orphan = g_nop_orphan; 273 gp->resize = g_nop_resize; 274 gp->access = g_nop_access; 275 gp->dumpconf = g_nop_dumpconf; 276 277 newpp = g_new_providerf(gp, "%s", gp->name); 278 newpp->flags |= G_PF_DIRECT_SEND | G_PF_DIRECT_RECEIVE; 279 newpp->mediasize = size; 280 newpp->sectorsize = secsize; 281 newpp->stripesize = stripesize; 282 newpp->stripeoffset = stripeoffset; 283 284 cp = g_new_consumer(gp); 285 cp->flags |= G_CF_DIRECT_SEND | G_CF_DIRECT_RECEIVE; 286 error = g_attach(cp, pp); 287 if (error != 0) { 288 gctl_error(req, "Cannot attach to provider %s.", pp->name); 289 goto fail; 290 } 291 292 newpp->flags |= pp->flags & G_PF_ACCEPT_UNMAPPED; 293 g_error_provider(newpp, 0); 294 G_NOP_DEBUG(0, "Device %s created.", gp->name); 295 return (0); 296 fail: 297 if (cp->provider != NULL) 298 g_detach(cp); 299 g_destroy_consumer(cp); 300 g_destroy_provider(newpp); 301 mtx_destroy(&sc->sc_lock); 302 g_free(gp->softc); 303 g_destroy_geom(gp); 304 return (error); 305 } 306 307 static int 308 g_nop_destroy(struct g_geom *gp, boolean_t force) 309 { 310 struct g_nop_softc *sc; 311 struct g_provider *pp; 312 313 g_topology_assert(); 314 sc = gp->softc; 315 if (sc == NULL) 316 return (ENXIO); 317 pp = LIST_FIRST(&gp->provider); 318 if (pp != NULL && (pp->acr != 0 || pp->acw != 0 || pp->ace != 0)) { 319 if (force) { 320 G_NOP_DEBUG(0, "Device %s is still open, so it " 321 "can't be definitely removed.", pp->name); 322 } else { 323 G_NOP_DEBUG(1, "Device %s is still open (r%dw%de%d).", 324 pp->name, pp->acr, pp->acw, pp->ace); 325 return (EBUSY); 326 } 327 } else { 328 G_NOP_DEBUG(0, "Device %s removed.", gp->name); 329 } 330 gp->softc = NULL; 331 mtx_destroy(&sc->sc_lock); 332 g_free(sc); 333 g_wither_geom(gp, ENXIO); 334 335 return (0); 336 } 337 338 static int 339 g_nop_destroy_geom(struct gctl_req *req, struct g_class *mp, struct g_geom *gp) 340 { 341 342 return (g_nop_destroy(gp, 0)); 343 } 344 345 static void 346 g_nop_ctl_create(struct gctl_req *req, struct g_class *mp) 347 { 348 struct g_provider *pp; 349 intmax_t *error, *rfailprob, *wfailprob, *offset, *secsize, *size, 350 *stripesize, *stripeoffset; 351 const char *name; 352 char param[16]; 353 int i, *nargs; 354 355 g_topology_assert(); 356 357 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 358 if (nargs == NULL) { 359 gctl_error(req, "No '%s' argument", "nargs"); 360 return; 361 } 362 if (*nargs <= 0) { 363 gctl_error(req, "Missing device(s)."); 364 return; 365 } 366 error = gctl_get_paraml(req, "error", sizeof(*error)); 367 if (error == NULL) { 368 gctl_error(req, "No '%s' argument", "error"); 369 return; 370 } 371 rfailprob = gctl_get_paraml(req, "rfailprob", sizeof(*rfailprob)); 372 if (rfailprob == NULL) { 373 gctl_error(req, "No '%s' argument", "rfailprob"); 374 return; 375 } 376 if (*rfailprob < -1 || *rfailprob > 100) { 377 gctl_error(req, "Invalid '%s' argument", "rfailprob"); 378 return; 379 } 380 wfailprob = gctl_get_paraml(req, "wfailprob", sizeof(*wfailprob)); 381 if (wfailprob == NULL) { 382 gctl_error(req, "No '%s' argument", "wfailprob"); 383 return; 384 } 385 if (*wfailprob < -1 || *wfailprob > 100) { 386 gctl_error(req, "Invalid '%s' argument", "wfailprob"); 387 return; 388 } 389 offset = gctl_get_paraml(req, "offset", sizeof(*offset)); 390 if (offset == NULL) { 391 gctl_error(req, "No '%s' argument", "offset"); 392 return; 393 } 394 if (*offset < 0) { 395 gctl_error(req, "Invalid '%s' argument", "offset"); 396 return; 397 } 398 size = gctl_get_paraml(req, "size", sizeof(*size)); 399 if (size == NULL) { 400 gctl_error(req, "No '%s' argument", "size"); 401 return; 402 } 403 if (*size < 0) { 404 gctl_error(req, "Invalid '%s' argument", "size"); 405 return; 406 } 407 secsize = gctl_get_paraml(req, "secsize", sizeof(*secsize)); 408 if (secsize == NULL) { 409 gctl_error(req, "No '%s' argument", "secsize"); 410 return; 411 } 412 if (*secsize < 0) { 413 gctl_error(req, "Invalid '%s' argument", "secsize"); 414 return; 415 } 416 stripesize = gctl_get_paraml(req, "stripesize", sizeof(*stripesize)); 417 if (stripesize == NULL) { 418 gctl_error(req, "No '%s' argument", "stripesize"); 419 return; 420 } 421 if (*stripesize < 0) { 422 gctl_error(req, "Invalid '%s' argument", "stripesize"); 423 return; 424 } 425 stripeoffset = gctl_get_paraml(req, "stripeoffset", sizeof(*stripeoffset)); 426 if (stripeoffset == NULL) { 427 gctl_error(req, "No '%s' argument", "stripeoffset"); 428 return; 429 } 430 if (*stripeoffset < 0) { 431 gctl_error(req, "Invalid '%s' argument", "stripeoffset"); 432 return; 433 } 434 435 for (i = 0; i < *nargs; i++) { 436 snprintf(param, sizeof(param), "arg%d", i); 437 name = gctl_get_asciiparam(req, param); 438 if (name == NULL) { 439 gctl_error(req, "No 'arg%d' argument", i); 440 return; 441 } 442 if (strncmp(name, "/dev/", strlen("/dev/")) == 0) 443 name += strlen("/dev/"); 444 pp = g_provider_by_name(name); 445 if (pp == NULL) { 446 G_NOP_DEBUG(1, "Provider %s is invalid.", name); 447 gctl_error(req, "Provider %s is invalid.", name); 448 return; 449 } 450 if (g_nop_create(req, mp, pp, 451 *error == -1 ? EIO : (int)*error, 452 *rfailprob == -1 ? 0 : (u_int)*rfailprob, 453 *wfailprob == -1 ? 0 : (u_int)*wfailprob, 454 (off_t)*offset, (off_t)*size, (u_int)*secsize, 455 (u_int)*stripesize, (u_int)*stripeoffset) != 0) { 456 return; 457 } 458 } 459 } 460 461 static void 462 g_nop_ctl_configure(struct gctl_req *req, struct g_class *mp) 463 { 464 struct g_nop_softc *sc; 465 struct g_provider *pp; 466 intmax_t *error, *rfailprob, *wfailprob; 467 const char *name; 468 char param[16]; 469 int i, *nargs; 470 471 g_topology_assert(); 472 473 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 474 if (nargs == NULL) { 475 gctl_error(req, "No '%s' argument", "nargs"); 476 return; 477 } 478 if (*nargs <= 0) { 479 gctl_error(req, "Missing device(s)."); 480 return; 481 } 482 error = gctl_get_paraml(req, "error", sizeof(*error)); 483 if (error == NULL) { 484 gctl_error(req, "No '%s' argument", "error"); 485 return; 486 } 487 rfailprob = gctl_get_paraml(req, "rfailprob", sizeof(*rfailprob)); 488 if (rfailprob == NULL) { 489 gctl_error(req, "No '%s' argument", "rfailprob"); 490 return; 491 } 492 if (*rfailprob < -1 || *rfailprob > 100) { 493 gctl_error(req, "Invalid '%s' argument", "rfailprob"); 494 return; 495 } 496 wfailprob = gctl_get_paraml(req, "wfailprob", sizeof(*wfailprob)); 497 if (wfailprob == NULL) { 498 gctl_error(req, "No '%s' argument", "wfailprob"); 499 return; 500 } 501 if (*wfailprob < -1 || *wfailprob > 100) { 502 gctl_error(req, "Invalid '%s' argument", "wfailprob"); 503 return; 504 } 505 506 for (i = 0; i < *nargs; i++) { 507 snprintf(param, sizeof(param), "arg%d", i); 508 name = gctl_get_asciiparam(req, param); 509 if (name == NULL) { 510 gctl_error(req, "No 'arg%d' argument", i); 511 return; 512 } 513 if (strncmp(name, "/dev/", strlen("/dev/")) == 0) 514 name += strlen("/dev/"); 515 pp = g_provider_by_name(name); 516 if (pp == NULL || pp->geom->class != mp) { 517 G_NOP_DEBUG(1, "Provider %s is invalid.", name); 518 gctl_error(req, "Provider %s is invalid.", name); 519 return; 520 } 521 sc = pp->geom->softc; 522 if (*error != -1) 523 sc->sc_error = (int)*error; 524 if (*rfailprob != -1) 525 sc->sc_rfailprob = (u_int)*rfailprob; 526 if (*wfailprob != -1) 527 sc->sc_wfailprob = (u_int)*wfailprob; 528 } 529 } 530 531 static struct g_geom * 532 g_nop_find_geom(struct g_class *mp, const char *name) 533 { 534 struct g_geom *gp; 535 536 LIST_FOREACH(gp, &mp->geom, geom) { 537 if (strcmp(gp->name, name) == 0) 538 return (gp); 539 } 540 return (NULL); 541 } 542 543 static void 544 g_nop_ctl_destroy(struct gctl_req *req, struct g_class *mp) 545 { 546 int *nargs, *force, error, i; 547 struct g_geom *gp; 548 const char *name; 549 char param[16]; 550 551 g_topology_assert(); 552 553 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 554 if (nargs == NULL) { 555 gctl_error(req, "No '%s' argument", "nargs"); 556 return; 557 } 558 if (*nargs <= 0) { 559 gctl_error(req, "Missing device(s)."); 560 return; 561 } 562 force = gctl_get_paraml(req, "force", sizeof(*force)); 563 if (force == NULL) { 564 gctl_error(req, "No 'force' argument"); 565 return; 566 } 567 568 for (i = 0; i < *nargs; i++) { 569 snprintf(param, sizeof(param), "arg%d", i); 570 name = gctl_get_asciiparam(req, param); 571 if (name == NULL) { 572 gctl_error(req, "No 'arg%d' argument", i); 573 return; 574 } 575 if (strncmp(name, "/dev/", strlen("/dev/")) == 0) 576 name += strlen("/dev/"); 577 gp = g_nop_find_geom(mp, name); 578 if (gp == NULL) { 579 G_NOP_DEBUG(1, "Device %s is invalid.", name); 580 gctl_error(req, "Device %s is invalid.", name); 581 return; 582 } 583 error = g_nop_destroy(gp, *force); 584 if (error != 0) { 585 gctl_error(req, "Cannot destroy device %s (error=%d).", 586 gp->name, error); 587 return; 588 } 589 } 590 } 591 592 static void 593 g_nop_ctl_reset(struct gctl_req *req, struct g_class *mp) 594 { 595 struct g_nop_softc *sc; 596 struct g_provider *pp; 597 const char *name; 598 char param[16]; 599 int i, *nargs; 600 601 g_topology_assert(); 602 603 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 604 if (nargs == NULL) { 605 gctl_error(req, "No '%s' argument", "nargs"); 606 return; 607 } 608 if (*nargs <= 0) { 609 gctl_error(req, "Missing device(s)."); 610 return; 611 } 612 613 for (i = 0; i < *nargs; i++) { 614 snprintf(param, sizeof(param), "arg%d", i); 615 name = gctl_get_asciiparam(req, param); 616 if (name == NULL) { 617 gctl_error(req, "No 'arg%d' argument", i); 618 return; 619 } 620 if (strncmp(name, "/dev/", strlen("/dev/")) == 0) 621 name += strlen("/dev/"); 622 pp = g_provider_by_name(name); 623 if (pp == NULL || pp->geom->class != mp) { 624 G_NOP_DEBUG(1, "Provider %s is invalid.", name); 625 gctl_error(req, "Provider %s is invalid.", name); 626 return; 627 } 628 sc = pp->geom->softc; 629 sc->sc_reads = 0; 630 sc->sc_writes = 0; 631 sc->sc_deletes = 0; 632 sc->sc_getattrs = 0; 633 sc->sc_flushes = 0; 634 sc->sc_cmd0s = 0; 635 sc->sc_cmd1s = 0; 636 sc->sc_cmd2s = 0; 637 sc->sc_readbytes = 0; 638 sc->sc_wrotebytes = 0; 639 } 640 } 641 642 static void 643 g_nop_config(struct gctl_req *req, struct g_class *mp, const char *verb) 644 { 645 uint32_t *version; 646 647 g_topology_assert(); 648 649 version = gctl_get_paraml(req, "version", sizeof(*version)); 650 if (version == NULL) { 651 gctl_error(req, "No '%s' argument.", "version"); 652 return; 653 } 654 if (*version != G_NOP_VERSION) { 655 gctl_error(req, "Userland and kernel parts are out of sync."); 656 return; 657 } 658 659 if (strcmp(verb, "create") == 0) { 660 g_nop_ctl_create(req, mp); 661 return; 662 } else if (strcmp(verb, "configure") == 0) { 663 g_nop_ctl_configure(req, mp); 664 return; 665 } else if (strcmp(verb, "destroy") == 0) { 666 g_nop_ctl_destroy(req, mp); 667 return; 668 } else if (strcmp(verb, "reset") == 0) { 669 g_nop_ctl_reset(req, mp); 670 return; 671 } 672 673 gctl_error(req, "Unknown verb."); 674 } 675 676 static void 677 g_nop_dumpconf(struct sbuf *sb, const char *indent, struct g_geom *gp, 678 struct g_consumer *cp, struct g_provider *pp) 679 { 680 struct g_nop_softc *sc; 681 682 if (pp != NULL || cp != NULL) 683 return; 684 sc = gp->softc; 685 sbuf_printf(sb, "%s<Offset>%jd</Offset>\n", indent, 686 (intmax_t)sc->sc_offset); 687 sbuf_printf(sb, "%s<ReadFailProb>%u</ReadFailProb>\n", indent, 688 sc->sc_rfailprob); 689 sbuf_printf(sb, "%s<WriteFailProb>%u</WriteFailProb>\n", indent, 690 sc->sc_wfailprob); 691 sbuf_printf(sb, "%s<Error>%d</Error>\n", indent, sc->sc_error); 692 sbuf_printf(sb, "%s<Reads>%ju</Reads>\n", indent, sc->sc_reads); 693 sbuf_printf(sb, "%s<Writes>%ju</Writes>\n", indent, sc->sc_writes); 694 sbuf_printf(sb, "%s<Deletes>%ju</Deletes>\n", indent, sc->sc_deletes); 695 sbuf_printf(sb, "%s<Getattrs>%ju</Getattrs>\n", indent, sc->sc_getattrs); 696 sbuf_printf(sb, "%s<Flushes>%ju</Flushes>\n", indent, sc->sc_flushes); 697 sbuf_printf(sb, "%s<Cmd0s>%ju</Cmd0s>\n", indent, sc->sc_cmd0s); 698 sbuf_printf(sb, "%s<Cmd1s>%ju</Cmd1s>\n", indent, sc->sc_cmd1s); 699 sbuf_printf(sb, "%s<Cmd2s>%ju</Cmd2s>\n", indent, sc->sc_cmd2s); 700 sbuf_printf(sb, "%s<ReadBytes>%ju</ReadBytes>\n", indent, 701 sc->sc_readbytes); 702 sbuf_printf(sb, "%s<WroteBytes>%ju</WroteBytes>\n", indent, 703 sc->sc_wrotebytes); 704 } 705 706 DECLARE_GEOM_CLASS(g_nop_class, g_nop); 707