/*- * 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 #include #include #include #include #include #include #include #include #include #include #include #define SUNLABEL_CLASS_NAME "SUN" struct g_sunlabel_softc { int sectorsize; int nheads; int nsects; int nalt; }; static int g_sunlabel_modify(struct g_geom *gp, struct g_sunlabel_softc *ms, u_char *sec0) { int i, error; u_int u, v, csize; /* The second last short is a magic number */ if (be16dec(sec0 + 508) != 0xdabe) return (EBUSY); /* The shortword parity of the entire thing must be even */ u = 0; for (i = 0; i < 512; i += 2) u ^= be16dec(sec0 + i); if (u != 0) return(EBUSY); csize = be16dec(sec0 + 436) * be16dec(sec0 + 438); for (i = 0; i < 8; i++) { v = be32dec(sec0 + 444 + i * 8); u = be32dec(sec0 + 448 + i * 8); g_topology_lock(); error = g_slice_config(gp, i, G_SLICE_CONFIG_CHECK, ((off_t)v * csize) << 9ULL, ((off_t)u) << 9ULL, ms->sectorsize, "%s%c", gp->name, 'a' + i); g_topology_unlock(); if (error) return (error); } for (i = 0; i < 8; i++) { v = be32dec(sec0 + 444 + i * 8); u = be32dec(sec0 + 448 + i * 8); g_topology_lock(); g_slice_config(gp, i, G_SLICE_CONFIG_SET, ((off_t)v * csize) << 9ULL, ((off_t)u) << 9ULL, ms->sectorsize, "%s%c", gp->name, 'a' + i); g_topology_unlock(); } ms->nalt = be16dec(sec0 + 434); ms->nheads = be16dec(sec0 + 436); ms->nsects = be16dec(sec0 + 438); return (0); } static int g_sunlabel_start(struct bio *bp) { struct g_geom *gp; struct g_sunlabel_softc *ms; struct g_slicer *gsp; gp = bp->bio_to->geom; gsp = gp->softc; ms = gsp->softc; return (0); } static void g_sunlabel_dumpconf(struct sbuf *sb, const char *indent, struct g_geom *gp, struct g_consumer *cp __unused, struct g_provider *pp) { struct g_slicer *gsp; struct g_sunlabel_softc *ms; gsp = gp->softc; ms = gsp->softc; g_slice_dumpconf(sb, indent, gp, cp, pp); if (indent == NULL) { sbuf_printf(sb, " sc %u hd %u alt %u", ms->nsects, ms->nheads, ms->nalt); } } static struct g_geom * g_sunlabel_taste(struct g_class *mp, struct g_provider *pp, int flags) { struct g_geom *gp; struct g_consumer *cp; int error, i, npart; u_char *buf; struct g_sunlabel_softc *ms; off_t mediasize; struct g_slicer *gsp; g_trace(G_T_TOPOLOGY, "g_sunlabel_taste(%s,%s)", mp->name, pp->name); g_topology_assert(); if (flags == G_TF_NORMAL && !strcmp(pp->geom->class->name, SUNLABEL_CLASS_NAME)) return (NULL); gp = g_slice_new(mp, 8, pp, &cp, &ms, sizeof *ms, g_sunlabel_start); if (gp == NULL) return (NULL); gsp = gp->softc; g_topology_unlock(); gp->dumpconf = g_sunlabel_dumpconf; npart = 0; do { if (gp->rank != 2 && flags == G_TF_NORMAL) break; ms->sectorsize = cp->provider->sectorsize; if (ms->sectorsize < 512) break; mediasize = cp->provider->mediasize; buf = g_read_data(cp, 0, ms->sectorsize, &error); if (buf == NULL || error != 0) break; if (bootverbose) { g_hexdump(buf, 128); for (i = 0; i < 8; i++) { printf("part %d %u %u\n", i, be32dec(buf + 444 + i * 8), be32dec(buf + 448 + i * 8)); } printf("v_version = %d\n", be32dec(buf + 128)); printf("v_nparts = %d\n", be16dec(buf + 140)); for (i = 0; i < 8; i++) { printf("v_part[%d] = %d %d\n", i, be16dec(buf + 142 + i * 4), be16dec(buf + 144 + i * 4)); } printf("v_sanity %x\n", be32dec(buf + 186)); printf("v_version = %d\n", be32dec(buf + 128)); printf("v_rpm %d\n", be16dec(buf + 420)); printf("v_totalcyl %d\n", be16dec(buf + 422)); printf("v_cyl %d\n", be16dec(buf + 432)); printf("v_alt %d\n", be16dec(buf + 434)); printf("v_head %d\n", be16dec(buf + 436)); printf("v_sec %d\n", be16dec(buf + 438)); } g_sunlabel_modify(gp, ms, buf); break; } while (0); g_topology_lock(); g_access_rel(cp, -1, 0, 0); if (LIST_EMPTY(&gp->provider)) { g_std_spoiled(cp); return (NULL); #ifdef notyet } else { g_slice_conf_hot(gp, 0, 0, ms->sectorsize); #endif } return (gp); } static struct g_class g_sunlabel_class = { .name = SUNLABEL_CLASS_NAME, .taste = g_sunlabel_taste, G_CLASS_INITIALIZER }; DECLARE_GEOM_CLASS(g_sunlabel_class, g_sunlabel);