1129471Spjd/*- 2162142Spjd * Copyright (c) 2004-2006 Pawel Jakub Dawidek <pjd@FreeBSD.org> 3129471Spjd * All rights reserved. 4129471Spjd * 5129471Spjd * Redistribution and use in source and binary forms, with or without 6129471Spjd * modification, are permitted provided that the following conditions 7129471Spjd * are met: 8129471Spjd * 1. Redistributions of source code must retain the above copyright 9129471Spjd * notice, this list of conditions and the following disclaimer. 10129471Spjd * 2. Redistributions in binary form must reproduce the above copyright 11129471Spjd * notice, this list of conditions and the following disclaimer in the 12129471Spjd * documentation and/or other materials provided with the distribution. 13155174Spjd * 14129471Spjd * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 15129471Spjd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16129471Spjd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17129471Spjd * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 18129471Spjd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19129471Spjd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20129471Spjd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21129471Spjd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22129471Spjd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23129471Spjd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24129471Spjd * SUCH DAMAGE. 25129471Spjd */ 26129471Spjd 27129471Spjd#include <sys/cdefs.h> 28129471Spjd__FBSDID("$FreeBSD$"); 29129471Spjd 30129471Spjd#include <sys/param.h> 31129471Spjd#include <sys/systm.h> 32129471Spjd#include <sys/kernel.h> 33129471Spjd#include <sys/module.h> 34129471Spjd#include <sys/lock.h> 35129471Spjd#include <sys/mutex.h> 36129471Spjd#include <sys/bio.h> 37223921Sae#include <sys/sbuf.h> 38129471Spjd#include <sys/sysctl.h> 39129471Spjd#include <sys/malloc.h> 40129471Spjd#include <geom/geom.h> 41129471Spjd#include <geom/nop/g_nop.h> 42129471Spjd 43129471Spjd 44129471SpjdSYSCTL_DECL(_kern_geom); 45227309Sedstatic SYSCTL_NODE(_kern_geom, OID_AUTO, nop, CTLFLAG_RW, 0, "GEOM_NOP stuff"); 46129471Spjdstatic u_int g_nop_debug = 0; 47129471SpjdSYSCTL_UINT(_kern_geom_nop, OID_AUTO, debug, CTLFLAG_RW, &g_nop_debug, 0, 48129471Spjd "Debug level"); 49129471Spjd 50129471Spjdstatic int g_nop_destroy(struct g_geom *gp, boolean_t force); 51129471Spjdstatic int g_nop_destroy_geom(struct gctl_req *req, struct g_class *mp, 52129471Spjd struct g_geom *gp); 53129471Spjdstatic void g_nop_config(struct gctl_req *req, struct g_class *mp, 54129471Spjd const char *verb); 55129471Spjdstatic void g_nop_dumpconf(struct sbuf *sb, const char *indent, 56129471Spjd struct g_geom *gp, struct g_consumer *cp, struct g_provider *pp); 57129471Spjd 58129471Spjdstruct g_class g_nop_class = { 59129471Spjd .name = G_NOP_CLASS_NAME, 60133318Sphk .version = G_VERSION, 61129471Spjd .ctlreq = g_nop_config, 62129471Spjd .destroy_geom = g_nop_destroy_geom 63129471Spjd}; 64129471Spjd 65129471Spjd 66129471Spjdstatic void 67129471Spjdg_nop_orphan(struct g_consumer *cp) 68129471Spjd{ 69129471Spjd 70129471Spjd g_topology_assert(); 71129471Spjd g_nop_destroy(cp->geom, 1); 72129471Spjd} 73129471Spjd 74129471Spjdstatic void 75238219Straszg_nop_resize(struct g_consumer *cp) 76238219Strasz{ 77238219Strasz struct g_nop_softc *sc; 78238219Strasz struct g_geom *gp; 79238219Strasz struct g_provider *pp; 80238219Strasz off_t size; 81238219Strasz 82238219Strasz g_topology_assert(); 83238219Strasz 84238219Strasz gp = cp->geom; 85238219Strasz sc = gp->softc; 86238219Strasz 87238219Strasz if (sc->sc_explicitsize != 0) 88238219Strasz return; 89238219Strasz if (cp->provider->mediasize < sc->sc_offset) { 90238219Strasz g_nop_destroy(gp, 1); 91238219Strasz return; 92238219Strasz } 93238219Strasz size = cp->provider->mediasize - sc->sc_offset; 94238219Strasz LIST_FOREACH(pp, &gp->provider, provider) 95238219Strasz g_resize_provider(pp, size); 96238219Strasz} 97238219Strasz 98238219Straszstatic void 99129471Spjdg_nop_start(struct bio *bp) 100129471Spjd{ 101132381Spjd struct g_nop_softc *sc; 102129471Spjd struct g_geom *gp; 103129471Spjd struct g_provider *pp; 104129471Spjd struct bio *cbp; 105162142Spjd u_int failprob = 0; 106129471Spjd 107129471Spjd gp = bp->bio_to->geom; 108132381Spjd sc = gp->softc; 109129471Spjd G_NOP_LOGREQ(bp, "Request received."); 110153250Spjd switch (bp->bio_cmd) { 111153250Spjd case BIO_READ: 112153250Spjd sc->sc_reads++; 113153250Spjd sc->sc_readbytes += bp->bio_length; 114162142Spjd failprob = sc->sc_rfailprob; 115153250Spjd break; 116153250Spjd case BIO_WRITE: 117153250Spjd sc->sc_writes++; 118153250Spjd sc->sc_wrotebytes += bp->bio_length; 119162142Spjd failprob = sc->sc_wfailprob; 120153250Spjd break; 121153250Spjd } 122162142Spjd if (failprob > 0) { 123129471Spjd u_int rval; 124129471Spjd 125129471Spjd rval = arc4random() % 100; 126162142Spjd if (rval < failprob) { 127249440Sjmg G_NOP_LOGREQLVL(1, bp, "Returning error=%d.", sc->sc_error); 128162142Spjd g_io_deliver(bp, sc->sc_error); 129129471Spjd return; 130129471Spjd } 131129471Spjd } 132154458Spjd cbp = g_clone_bio(bp); 133154458Spjd if (cbp == NULL) { 134154458Spjd g_io_deliver(bp, ENOMEM); 135154458Spjd return; 136154458Spjd } 137129471Spjd cbp->bio_done = g_std_done; 138132381Spjd cbp->bio_offset = bp->bio_offset + sc->sc_offset; 139132988Spjd pp = LIST_FIRST(&gp->provider); 140132988Spjd KASSERT(pp != NULL, ("NULL pp")); 141132988Spjd cbp->bio_to = pp; 142129471Spjd G_NOP_LOGREQ(cbp, "Sending request."); 143129471Spjd g_io_request(cbp, LIST_FIRST(&gp->consumer)); 144129471Spjd} 145129471Spjd 146129471Spjdstatic int 147129471Spjdg_nop_access(struct g_provider *pp, int dr, int dw, int de) 148129471Spjd{ 149129471Spjd struct g_geom *gp; 150129471Spjd struct g_consumer *cp; 151129471Spjd int error; 152129471Spjd 153129471Spjd gp = pp->geom; 154129471Spjd cp = LIST_FIRST(&gp->consumer); 155129471Spjd error = g_access(cp, dr, dw, de); 156129471Spjd 157129471Spjd return (error); 158129471Spjd} 159129471Spjd 160129471Spjdstatic int 161129471Spjdg_nop_create(struct gctl_req *req, struct g_class *mp, struct g_provider *pp, 162162142Spjd int ioerror, u_int rfailprob, u_int wfailprob, off_t offset, off_t size, 163162142Spjd u_int secsize) 164129471Spjd{ 165132381Spjd struct g_nop_softc *sc; 166129471Spjd struct g_geom *gp; 167129471Spjd struct g_provider *newpp; 168129471Spjd struct g_consumer *cp; 169130191Spjd char name[64]; 170129471Spjd int error; 171238219Strasz off_t explicitsize; 172129471Spjd 173129471Spjd g_topology_assert(); 174129471Spjd 175129471Spjd gp = NULL; 176129471Spjd newpp = NULL; 177129471Spjd cp = NULL; 178129471Spjd 179132381Spjd if ((offset % pp->sectorsize) != 0) { 180132381Spjd gctl_error(req, "Invalid offset for provider %s.", pp->name); 181132381Spjd return (EINVAL); 182132381Spjd } 183132381Spjd if ((size % pp->sectorsize) != 0) { 184132381Spjd gctl_error(req, "Invalid size for provider %s.", pp->name); 185132381Spjd return (EINVAL); 186132381Spjd } 187132381Spjd if (offset >= pp->mediasize) { 188132381Spjd gctl_error(req, "Invalid offset for provider %s.", pp->name); 189132381Spjd return (EINVAL); 190132381Spjd } 191238219Strasz explicitsize = size; 192132381Spjd if (size == 0) 193132381Spjd size = pp->mediasize - offset; 194132381Spjd if (offset + size > pp->mediasize) { 195132381Spjd gctl_error(req, "Invalid size for provider %s.", pp->name); 196132381Spjd return (EINVAL); 197132381Spjd } 198132877Spjd if (secsize == 0) 199132877Spjd secsize = pp->sectorsize; 200132877Spjd else if ((secsize % pp->sectorsize) != 0) { 201132877Spjd gctl_error(req, "Invalid secsize for provider %s.", pp->name); 202132877Spjd return (EINVAL); 203132877Spjd } 204217303Sae if (secsize > MAXPHYS) { 205217303Sae gctl_error(req, "secsize is too big."); 206217303Sae return (EINVAL); 207217303Sae } 208217263Sae size -= size % secsize; 209130191Spjd snprintf(name, sizeof(name), "%s%s", pp->name, G_NOP_SUFFIX); 210130191Spjd LIST_FOREACH(gp, &mp->geom, geom) { 211130191Spjd if (strcmp(gp->name, name) == 0) { 212130191Spjd gctl_error(req, "Provider %s already exists.", name); 213130191Spjd return (EEXIST); 214130191Spjd } 215130191Spjd } 216243333Sjh gp = g_new_geomf(mp, "%s", name); 217258505Smjg sc = g_malloc(sizeof(*sc), M_WAITOK | M_ZERO); 218132381Spjd sc->sc_offset = offset; 219238219Strasz sc->sc_explicitsize = explicitsize; 220162142Spjd sc->sc_error = ioerror; 221162142Spjd sc->sc_rfailprob = rfailprob; 222162142Spjd sc->sc_wfailprob = wfailprob; 223153250Spjd sc->sc_reads = 0; 224153250Spjd sc->sc_writes = 0; 225153250Spjd sc->sc_readbytes = 0; 226153250Spjd sc->sc_wrotebytes = 0; 227132381Spjd gp->softc = sc; 228129471Spjd gp->start = g_nop_start; 229129471Spjd gp->orphan = g_nop_orphan; 230238219Strasz gp->resize = g_nop_resize; 231129471Spjd gp->access = g_nop_access; 232129471Spjd gp->dumpconf = g_nop_dumpconf; 233129471Spjd 234243333Sjh newpp = g_new_providerf(gp, "%s", gp->name); 235132381Spjd newpp->mediasize = size; 236132877Spjd newpp->sectorsize = secsize; 237129471Spjd 238129471Spjd cp = g_new_consumer(gp); 239129471Spjd error = g_attach(cp, pp); 240129471Spjd if (error != 0) { 241129471Spjd gctl_error(req, "Cannot attach to provider %s.", pp->name); 242129471Spjd goto fail; 243129471Spjd } 244129471Spjd 245248721Smav newpp->flags |= pp->flags & G_PF_ACCEPT_UNMAPPED; 246129471Spjd g_error_provider(newpp, 0); 247129471Spjd G_NOP_DEBUG(0, "Device %s created.", gp->name); 248129471Spjd return (0); 249129471Spjdfail: 250220184Sae if (cp->provider != NULL) 251220184Sae g_detach(cp); 252220184Sae g_destroy_consumer(cp); 253220184Sae g_destroy_provider(newpp); 254220184Sae g_free(gp->softc); 255220184Sae g_destroy_geom(gp); 256129471Spjd return (error); 257129471Spjd} 258129471Spjd 259129471Spjdstatic int 260129471Spjdg_nop_destroy(struct g_geom *gp, boolean_t force) 261129471Spjd{ 262129471Spjd struct g_provider *pp; 263129471Spjd 264129471Spjd g_topology_assert(); 265132988Spjd if (gp->softc == NULL) 266132988Spjd return (ENXIO); 267129471Spjd pp = LIST_FIRST(&gp->provider); 268129471Spjd if (pp != NULL && (pp->acr != 0 || pp->acw != 0 || pp->ace != 0)) { 269129471Spjd if (force) { 270129471Spjd G_NOP_DEBUG(0, "Device %s is still open, so it " 271129471Spjd "can't be definitely removed.", pp->name); 272129471Spjd } else { 273129471Spjd G_NOP_DEBUG(1, "Device %s is still open (r%dw%de%d).", 274129471Spjd pp->name, pp->acr, pp->acw, pp->ace); 275129471Spjd return (EBUSY); 276129471Spjd } 277129471Spjd } else { 278129471Spjd G_NOP_DEBUG(0, "Device %s removed.", gp->name); 279129471Spjd } 280132381Spjd g_free(gp->softc); 281132381Spjd gp->softc = NULL; 282129471Spjd g_wither_geom(gp, ENXIO); 283129471Spjd 284129471Spjd return (0); 285129471Spjd} 286129471Spjd 287129471Spjdstatic int 288129471Spjdg_nop_destroy_geom(struct gctl_req *req, struct g_class *mp, struct g_geom *gp) 289129471Spjd{ 290129471Spjd 291129471Spjd return (g_nop_destroy(gp, 0)); 292129471Spjd} 293129471Spjd 294129471Spjdstatic void 295129471Spjdg_nop_ctl_create(struct gctl_req *req, struct g_class *mp) 296129471Spjd{ 297129471Spjd struct g_provider *pp; 298162142Spjd intmax_t *error, *rfailprob, *wfailprob, *offset, *secsize, *size; 299129471Spjd const char *name; 300129471Spjd char param[16]; 301129471Spjd int i, *nargs; 302129471Spjd 303129471Spjd g_topology_assert(); 304129471Spjd 305129471Spjd nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 306129471Spjd if (nargs == NULL) { 307129471Spjd gctl_error(req, "No '%s' argument", "nargs"); 308129471Spjd return; 309129471Spjd } 310129471Spjd if (*nargs <= 0) { 311129471Spjd gctl_error(req, "Missing device(s)."); 312129471Spjd return; 313129471Spjd } 314162142Spjd error = gctl_get_paraml(req, "error", sizeof(*error)); 315162142Spjd if (error == NULL) { 316162142Spjd gctl_error(req, "No '%s' argument", "error"); 317129471Spjd return; 318129471Spjd } 319162142Spjd rfailprob = gctl_get_paraml(req, "rfailprob", sizeof(*rfailprob)); 320162142Spjd if (rfailprob == NULL) { 321162142Spjd gctl_error(req, "No '%s' argument", "rfailprob"); 322129471Spjd return; 323129471Spjd } 324162142Spjd if (*rfailprob < -1 || *rfailprob > 100) { 325162142Spjd gctl_error(req, "Invalid '%s' argument", "rfailprob"); 326162142Spjd return; 327162142Spjd } 328162142Spjd wfailprob = gctl_get_paraml(req, "wfailprob", sizeof(*wfailprob)); 329162142Spjd if (wfailprob == NULL) { 330162142Spjd gctl_error(req, "No '%s' argument", "wfailprob"); 331162142Spjd return; 332162142Spjd } 333162142Spjd if (*wfailprob < -1 || *wfailprob > 100) { 334162142Spjd gctl_error(req, "Invalid '%s' argument", "wfailprob"); 335162142Spjd return; 336162142Spjd } 337132381Spjd offset = gctl_get_paraml(req, "offset", sizeof(*offset)); 338132381Spjd if (offset == NULL) { 339132381Spjd gctl_error(req, "No '%s' argument", "offset"); 340132381Spjd return; 341132381Spjd } 342132381Spjd if (*offset < 0) { 343132381Spjd gctl_error(req, "Invalid '%s' argument", "offset"); 344132381Spjd return; 345132381Spjd } 346132381Spjd size = gctl_get_paraml(req, "size", sizeof(*size)); 347132381Spjd if (size == NULL) { 348132381Spjd gctl_error(req, "No '%s' argument", "size"); 349132381Spjd return; 350132381Spjd } 351132381Spjd if (*size < 0) { 352132381Spjd gctl_error(req, "Invalid '%s' argument", "size"); 353132381Spjd return; 354132381Spjd } 355132877Spjd secsize = gctl_get_paraml(req, "secsize", sizeof(*secsize)); 356132877Spjd if (secsize == NULL) { 357132877Spjd gctl_error(req, "No '%s' argument", "secsize"); 358132877Spjd return; 359132877Spjd } 360132877Spjd if (*secsize < 0) { 361132877Spjd gctl_error(req, "Invalid '%s' argument", "secsize"); 362132877Spjd return; 363132877Spjd } 364129471Spjd 365129471Spjd for (i = 0; i < *nargs; i++) { 366129471Spjd snprintf(param, sizeof(param), "arg%d", i); 367155174Spjd name = gctl_get_asciiparam(req, param); 368129471Spjd if (name == NULL) { 369129471Spjd gctl_error(req, "No 'arg%d' argument", i); 370129471Spjd return; 371129471Spjd } 372129471Spjd if (strncmp(name, "/dev/", strlen("/dev/")) == 0) 373129471Spjd name += strlen("/dev/"); 374129471Spjd pp = g_provider_by_name(name); 375129471Spjd if (pp == NULL) { 376129471Spjd G_NOP_DEBUG(1, "Provider %s is invalid.", name); 377129471Spjd gctl_error(req, "Provider %s is invalid.", name); 378155174Spjd return; 379129471Spjd } 380162142Spjd if (g_nop_create(req, mp, pp, 381162142Spjd *error == -1 ? EIO : (int)*error, 382162142Spjd *rfailprob == -1 ? 0 : (u_int)*rfailprob, 383162142Spjd *wfailprob == -1 ? 0 : (u_int)*wfailprob, 384162142Spjd (off_t)*offset, (off_t)*size, (u_int)*secsize) != 0) { 385129471Spjd return; 386132381Spjd } 387129471Spjd } 388129471Spjd} 389129471Spjd 390129471Spjdstatic void 391129548Spjdg_nop_ctl_configure(struct gctl_req *req, struct g_class *mp) 392129471Spjd{ 393132381Spjd struct g_nop_softc *sc; 394129471Spjd struct g_provider *pp; 395162142Spjd intmax_t *error, *rfailprob, *wfailprob; 396129471Spjd const char *name; 397129471Spjd char param[16]; 398129471Spjd int i, *nargs; 399129471Spjd 400129471Spjd g_topology_assert(); 401129471Spjd 402129471Spjd nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 403129471Spjd if (nargs == NULL) { 404129471Spjd gctl_error(req, "No '%s' argument", "nargs"); 405129471Spjd return; 406129471Spjd } 407129471Spjd if (*nargs <= 0) { 408129471Spjd gctl_error(req, "Missing device(s)."); 409129471Spjd return; 410129471Spjd } 411162142Spjd error = gctl_get_paraml(req, "error", sizeof(*error)); 412162142Spjd if (error == NULL) { 413162142Spjd gctl_error(req, "No '%s' argument", "error"); 414129471Spjd return; 415129471Spjd } 416162142Spjd rfailprob = gctl_get_paraml(req, "rfailprob", sizeof(*rfailprob)); 417162142Spjd if (rfailprob == NULL) { 418162142Spjd gctl_error(req, "No '%s' argument", "rfailprob"); 419129471Spjd return; 420129471Spjd } 421162142Spjd if (*rfailprob < -1 || *rfailprob > 100) { 422162142Spjd gctl_error(req, "Invalid '%s' argument", "rfailprob"); 423162142Spjd return; 424162142Spjd } 425162142Spjd wfailprob = gctl_get_paraml(req, "wfailprob", sizeof(*wfailprob)); 426162142Spjd if (wfailprob == NULL) { 427162142Spjd gctl_error(req, "No '%s' argument", "wfailprob"); 428162142Spjd return; 429162142Spjd } 430162142Spjd if (*wfailprob < -1 || *wfailprob > 100) { 431162142Spjd gctl_error(req, "Invalid '%s' argument", "wfailprob"); 432162142Spjd return; 433162142Spjd } 434129471Spjd 435129471Spjd for (i = 0; i < *nargs; i++) { 436129471Spjd snprintf(param, sizeof(param), "arg%d", i); 437155174Spjd name = gctl_get_asciiparam(req, param); 438129471Spjd if (name == NULL) { 439129471Spjd gctl_error(req, "No 'arg%d' argument", i); 440129471Spjd return; 441129471Spjd } 442129471Spjd if (strncmp(name, "/dev/", strlen("/dev/")) == 0) 443129471Spjd name += strlen("/dev/"); 444129471Spjd pp = g_provider_by_name(name); 445129471Spjd if (pp == NULL || pp->geom->class != mp) { 446129471Spjd G_NOP_DEBUG(1, "Provider %s is invalid.", name); 447129471Spjd gctl_error(req, "Provider %s is invalid.", name); 448155174Spjd return; 449129471Spjd } 450132381Spjd sc = pp->geom->softc; 451162142Spjd if (*error != -1) 452162142Spjd sc->sc_error = (int)*error; 453162142Spjd if (*rfailprob != -1) 454162142Spjd sc->sc_rfailprob = (u_int)*rfailprob; 455162142Spjd if (*wfailprob != -1) 456162142Spjd sc->sc_wfailprob = (u_int)*wfailprob; 457129471Spjd } 458129471Spjd} 459129471Spjd 460129471Spjdstatic struct g_geom * 461129471Spjdg_nop_find_geom(struct g_class *mp, const char *name) 462129471Spjd{ 463129471Spjd struct g_geom *gp; 464129471Spjd 465129471Spjd LIST_FOREACH(gp, &mp->geom, geom) { 466129471Spjd if (strcmp(gp->name, name) == 0) 467129471Spjd return (gp); 468129471Spjd } 469129471Spjd return (NULL); 470129471Spjd} 471129471Spjd 472129471Spjdstatic void 473129471Spjdg_nop_ctl_destroy(struct gctl_req *req, struct g_class *mp) 474129471Spjd{ 475129471Spjd int *nargs, *force, error, i; 476129471Spjd struct g_geom *gp; 477129471Spjd const char *name; 478129471Spjd char param[16]; 479129471Spjd 480129471Spjd g_topology_assert(); 481129471Spjd 482129471Spjd nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 483129471Spjd if (nargs == NULL) { 484129471Spjd gctl_error(req, "No '%s' argument", "nargs"); 485129471Spjd return; 486129471Spjd } 487129471Spjd if (*nargs <= 0) { 488129471Spjd gctl_error(req, "Missing device(s)."); 489129471Spjd return; 490129471Spjd } 491129471Spjd force = gctl_get_paraml(req, "force", sizeof(*force)); 492129471Spjd if (force == NULL) { 493129471Spjd gctl_error(req, "No 'force' argument"); 494129471Spjd return; 495129471Spjd } 496129471Spjd 497129471Spjd for (i = 0; i < *nargs; i++) { 498129471Spjd snprintf(param, sizeof(param), "arg%d", i); 499155174Spjd name = gctl_get_asciiparam(req, param); 500129471Spjd if (name == NULL) { 501129471Spjd gctl_error(req, "No 'arg%d' argument", i); 502129471Spjd return; 503129471Spjd } 504129471Spjd if (strncmp(name, "/dev/", strlen("/dev/")) == 0) 505129471Spjd name += strlen("/dev/"); 506129471Spjd gp = g_nop_find_geom(mp, name); 507129471Spjd if (gp == NULL) { 508129471Spjd G_NOP_DEBUG(1, "Device %s is invalid.", name); 509129471Spjd gctl_error(req, "Device %s is invalid.", name); 510155174Spjd return; 511129471Spjd } 512129471Spjd error = g_nop_destroy(gp, *force); 513129471Spjd if (error != 0) { 514129471Spjd gctl_error(req, "Cannot destroy device %s (error=%d).", 515129471Spjd gp->name, error); 516129471Spjd return; 517129471Spjd } 518129471Spjd } 519129471Spjd} 520129471Spjd 521129471Spjdstatic void 522153250Spjdg_nop_ctl_reset(struct gctl_req *req, struct g_class *mp) 523153250Spjd{ 524153250Spjd struct g_nop_softc *sc; 525153250Spjd struct g_provider *pp; 526153250Spjd const char *name; 527153250Spjd char param[16]; 528153250Spjd int i, *nargs; 529153250Spjd 530153250Spjd g_topology_assert(); 531153250Spjd 532153250Spjd nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 533153250Spjd if (nargs == NULL) { 534153250Spjd gctl_error(req, "No '%s' argument", "nargs"); 535153250Spjd return; 536153250Spjd } 537153250Spjd if (*nargs <= 0) { 538153250Spjd gctl_error(req, "Missing device(s)."); 539153250Spjd return; 540153250Spjd } 541153250Spjd 542153250Spjd for (i = 0; i < *nargs; i++) { 543153250Spjd snprintf(param, sizeof(param), "arg%d", i); 544155174Spjd name = gctl_get_asciiparam(req, param); 545153250Spjd if (name == NULL) { 546153250Spjd gctl_error(req, "No 'arg%d' argument", i); 547153250Spjd return; 548153250Spjd } 549153250Spjd if (strncmp(name, "/dev/", strlen("/dev/")) == 0) 550153250Spjd name += strlen("/dev/"); 551153250Spjd pp = g_provider_by_name(name); 552153250Spjd if (pp == NULL || pp->geom->class != mp) { 553153250Spjd G_NOP_DEBUG(1, "Provider %s is invalid.", name); 554153250Spjd gctl_error(req, "Provider %s is invalid.", name); 555155174Spjd return; 556153250Spjd } 557153250Spjd sc = pp->geom->softc; 558153250Spjd sc->sc_reads = 0; 559153250Spjd sc->sc_writes = 0; 560153250Spjd sc->sc_readbytes = 0; 561153250Spjd sc->sc_wrotebytes = 0; 562153250Spjd } 563153250Spjd} 564153250Spjd 565153250Spjdstatic void 566129471Spjdg_nop_config(struct gctl_req *req, struct g_class *mp, const char *verb) 567129471Spjd{ 568129471Spjd uint32_t *version; 569129471Spjd 570129471Spjd g_topology_assert(); 571129471Spjd 572129471Spjd version = gctl_get_paraml(req, "version", sizeof(*version)); 573129471Spjd if (version == NULL) { 574129471Spjd gctl_error(req, "No '%s' argument.", "version"); 575129471Spjd return; 576129471Spjd } 577129471Spjd if (*version != G_NOP_VERSION) { 578129471Spjd gctl_error(req, "Userland and kernel parts are out of sync."); 579129471Spjd return; 580129471Spjd } 581129471Spjd 582129471Spjd if (strcmp(verb, "create") == 0) { 583129471Spjd g_nop_ctl_create(req, mp); 584129471Spjd return; 585129548Spjd } else if (strcmp(verb, "configure") == 0) { 586129548Spjd g_nop_ctl_configure(req, mp); 587129471Spjd return; 588129471Spjd } else if (strcmp(verb, "destroy") == 0) { 589129471Spjd g_nop_ctl_destroy(req, mp); 590129471Spjd return; 591153250Spjd } else if (strcmp(verb, "reset") == 0) { 592153250Spjd g_nop_ctl_reset(req, mp); 593153250Spjd return; 594129471Spjd } 595129471Spjd 596129471Spjd gctl_error(req, "Unknown verb."); 597129471Spjd} 598129471Spjd 599129471Spjdstatic void 600129471Spjdg_nop_dumpconf(struct sbuf *sb, const char *indent, struct g_geom *gp, 601129471Spjd struct g_consumer *cp, struct g_provider *pp) 602129471Spjd{ 603132381Spjd struct g_nop_softc *sc; 604129471Spjd 605132665Spjd if (pp != NULL || cp != NULL) 606132381Spjd return; 607132381Spjd sc = gp->softc; 608132665Spjd sbuf_printf(sb, "%s<Offset>%jd</Offset>\n", indent, 609132381Spjd (intmax_t)sc->sc_offset); 610162142Spjd sbuf_printf(sb, "%s<ReadFailProb>%u</ReadFailProb>\n", indent, 611162142Spjd sc->sc_rfailprob); 612162142Spjd sbuf_printf(sb, "%s<WriteFailProb>%u</WriteFailProb>\n", indent, 613162142Spjd sc->sc_wfailprob); 614162153Spjd sbuf_printf(sb, "%s<Error>%d</Error>\n", indent, sc->sc_error); 615153250Spjd sbuf_printf(sb, "%s<Reads>%ju</Reads>\n", indent, sc->sc_reads); 616153250Spjd sbuf_printf(sb, "%s<Writes>%ju</Writes>\n", indent, sc->sc_writes); 617153532Spjd sbuf_printf(sb, "%s<ReadBytes>%ju</ReadBytes>\n", indent, 618153250Spjd sc->sc_readbytes); 619153250Spjd sbuf_printf(sb, "%s<WroteBytes>%ju</WroteBytes>\n", indent, 620153265Spjd sc->sc_wrotebytes); 621129471Spjd} 622129471Spjd 623129471SpjdDECLARE_GEOM_CLASS(g_nop_class, g_nop); 624