diff options
Diffstat (limited to 'tools/regression/geom/geom_simdisk.c')
| -rw-r--r-- | tools/regression/geom/geom_simdisk.c | 259 |
1 files changed, 0 insertions, 259 deletions
diff --git a/tools/regression/geom/geom_simdisk.c b/tools/regression/geom/geom_simdisk.c deleted file mode 100644 index ed9ed1f..0000000 --- a/tools/regression/geom/geom_simdisk.c +++ /dev/null @@ -1,259 +0,0 @@ -/*- - * Copyright (c) 2002 Poul-Henning Kamp - * Copyright (c) 2002 Networks Associates Technology, Inc. - * All rights reserved. - * - * This software was developed for the FreeBSD Project by Poul-Henning Kamp - * and NAI Labs, the Security Research Division of Network Associates, Inc. - * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the - * DARPA CHATS research program. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The names of the authors may not be used to endorse or promote - * products derived from this software without specific prior written - * permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - - -#include <stdio.h> -#include <unistd.h> -#include <stdlib.h> -#include <fcntl.h> -#include <string.h> -#include <err.h> -#include <sys/errno.h> -#include <sys/stat.h> -#include <geom/geom.h> - -#include "geom_simdisk.h" - -struct g_class g_simdisk_class = { - "SIMDISK-class", - NULL, - NULL, - G_CLASS_INITIALIZER -}; - -static void -g_simdisk_start(struct bio *bp) -{ - off_t ot, off; - unsigned nsec; - u_char *op; - int i; - struct g_geom *gp = bp->bio_to->geom; - struct simdisk_softc *sc = gp->softc; - struct sector *dsp; - - - printf("SIMDISK: OP%d %qd at %qd\n", - bp->bio_cmd, bp->bio_length, bp->bio_offset); - if (sc->stop) { - TAILQ_INSERT_TAIL(&sc->sort, bp, bio_sort); - return; - } - if (bp->bio_cmd == BIO_READ) { - off = bp->bio_offset; - nsec = bp->bio_length /= sc->sectorsize; - op = bp->bio_data; - while (nsec) { - dsp = g_simdisk_findsector(sc, off, 0); - if (dsp == NULL) { - dsp = g_simdisk_findsector(sc, off, 1); - ot = lseek(sc->fd, off, SEEK_SET); - if (ot != off) { - g_io_deliver(bp, EIO); - return; - } - i = read(sc->fd, dsp->data, sc->sectorsize); - if (i < 0) { - g_io_deliver(bp, errno); - return; - } - if (i == 0) - memset(dsp->data, 0, sc->sectorsize); - } - memcpy(op, dsp->data, sc->sectorsize); - bp->bio_completed += sc->sectorsize; - off += sc->sectorsize; - op += sc->sectorsize; - nsec--; - } - g_io_deliver(bp, 0); - return; - } - if (bp->bio_cmd == BIO_GETATTR) { - if (g_handleattr_int(bp, "GEOM::fwsectors", sc->fwsectors)) - return; - if (g_handleattr_int(bp, "GEOM::fwheads", sc->fwheads)) - return; - if (g_handleattr_int(bp, "GEOM::fwcylinders", sc->fwcylinders)) - return; - } - g_io_deliver(bp, EOPNOTSUPP); -} - -void -g_simdisk_init(void) -{ - g_add_class(&g_simdisk_class); -} - -struct g_geom * -g_simdisk_create(const char *name, struct simdisk_softc *sc) -{ - struct g_geom *gp; - struct g_provider *pp; - static int unit; - - printf("g_simdisk_create(\"%s\", %p)\n", name, sc); - g_topology_lock(); - gp = g_new_geomf(&g_simdisk_class, "%s", name); - gp->start = g_simdisk_start; - gp->softc = sc; - gp->access = g_std_access; - - pp = g_new_providerf(gp, "%s", name); - pp->mediasize = sc->mediasize; - pp->sectorsize = sc->sectorsize; - g_error_provider(pp, 0); - unit++; - g_topology_unlock(); - return (gp); -} - -struct g_geom * -g_simdisk_new(const char *name, const char *path) -{ - struct simdisk_softc *sc; - struct stat st; - - sc = calloc(1, sizeof *sc); - - sc->fd = open(path, O_RDONLY); - if (sc->fd < 0) - err(1, path); - fstat(sc->fd, &st); - sc->mediasize = st.st_size; - sc->sectorsize = 512; - LIST_INIT(&sc->sectors); - TAILQ_INIT(&sc->sort); - return (g_simdisk_create(name, sc)); -} - -void -g_simdisk_destroy(const char *name) -{ - struct g_geom *gp; - - LIST_FOREACH(gp, &g_simdisk_class.geom, geom) { - if (strcmp(name, gp->name)) - continue; - gp->flags |= G_GEOM_WITHER; - g_orphan_provider(LIST_FIRST(&gp->provider), ENXIO); - return; - } -} - -struct sector * -g_simdisk_findsector(struct simdisk_softc *sc, off_t off, int create) -{ - struct sector *dsp; - - LIST_FOREACH(dsp, &sc->sectors, sectors) { - if (dsp->offset < off) - continue; - if (dsp->offset == off) - return (dsp); - break; - } - if (!create) - return (NULL); - printf("Creating sector at offset %lld (%u)\n", - off, (unsigned)(off / sc->sectorsize)); - dsp = calloc(1, sizeof *dsp + sc->sectorsize); - dsp->data = (u_char *)(dsp + 1); - dsp->offset = off; - g_simdisk_insertsector(sc, dsp); - return (dsp); -} - -void -g_simdisk_insertsector(struct simdisk_softc *sc, struct sector *dsp) -{ - struct sector *dsp2, *dsp3; - - if (LIST_EMPTY(&sc->sectors)) { - LIST_INSERT_HEAD(&sc->sectors, dsp, sectors); - return; - } - dsp3 = NULL; - LIST_FOREACH(dsp2, &sc->sectors, sectors) { - dsp3 = dsp2; - if (dsp2->offset > dsp->offset) { - LIST_INSERT_BEFORE(dsp2, dsp, sectors); - return; - } - } - LIST_INSERT_AFTER(dsp3, dsp, sectors); -} - -void -g_simdisk_stop(const char *name) -{ - struct g_geom *gp; - struct simdisk_softc *sc; - - g_trace(G_T_TOPOLOGY, "g_simdisk_stop(%s)", name); - LIST_FOREACH(gp, &g_simdisk_class.geom, geom) { - if (strcmp(name, gp->name)) - continue; - sc = gp->softc; - sc->stop = 1; - return; - } -} - -void -g_simdisk_restart(const char *name) -{ - struct g_geom *gp; - struct simdisk_softc *sc; - struct bio *bp; - - g_trace(G_T_TOPOLOGY, "g_simdisk_restart(%s)", name); - LIST_FOREACH(gp, &g_simdisk_class.geom, geom) { - if (strcmp(name, gp->name)) - continue; - sc = gp->softc; - sc->stop = 0; - bp = TAILQ_FIRST(&sc->sort); - while (bp != NULL) { - TAILQ_REMOVE(&sc->sort, bp, bio_sort); - g_simdisk_start(bp); - bp = TAILQ_FIRST(&sc->sort); - } - return; - } -} |
