diff options
Diffstat (limited to 'sys/geom/geom_apple.c')
-rw-r--r-- | sys/geom/geom_apple.c | 263 |
1 files changed, 0 insertions, 263 deletions
diff --git a/sys/geom/geom_apple.c b/sys/geom/geom_apple.c deleted file mode 100644 index cfb53e8..0000000 --- a/sys/geom/geom_apple.c +++ /dev/null @@ -1,263 +0,0 @@ -/*- - * Copyright (c) 2002 Peter Grehan. - * All rights reserved. - * - * 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. - * - * 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. - */ - -/* - * GEOM module for Apple Partition Maps - * As described in 'Inside Macintosh Vol 3: About the SCSI Manager - - * The Structure of Block Devices" - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/endian.h> -#include <sys/systm.h> -#include <sys/kernel.h> -#include <sys/malloc.h> -#include <sys/bio.h> -#include <sys/lock.h> -#include <sys/mutex.h> - -#include <sys/sbuf.h> -#include <geom/geom.h> -#include <geom/geom_slice.h> - -#define APPLE_CLASS_NAME "APPLE" - -#define NAPMPART 16 /* Max partitions */ - -struct apm_partition { - char am_sig[2]; - u_int32_t am_mapcnt; - u_int32_t am_start; - u_int32_t am_partcnt; - char am_name[32]; - char am_type[32]; -}; - -struct g_apple_softc { - u_int16_t dd_bsiz; - u_int32_t dd_blkcnt; - u_int16_t dd_drvrcnt; - u_int32_t am_mapcnt0; - struct apm_partition apmpart[NAPMPART]; -}; - -static void -g_dec_drvrdesc(u_char *ptr, struct g_apple_softc *sc) -{ - sc->dd_bsiz = be16dec(ptr + 2); - sc->dd_blkcnt = be32dec(ptr + 4); - sc->dd_drvrcnt = be32dec(ptr + 16); -} - -static void -g_dec_apple_partition(u_char *ptr, struct apm_partition *d) -{ - d->am_sig[0] = ptr[0]; - d->am_sig[1] = ptr[1]; - d->am_mapcnt = be32dec(ptr + 4); - d->am_start = be32dec(ptr + 8); - d->am_partcnt = be32dec(ptr + 12); - memcpy(d->am_name, ptr + 16, 32); - memcpy(d->am_type, ptr + 48, 32); -} - -static int -g_apple_start(struct bio *bp) -{ - struct g_provider *pp; - struct g_geom *gp; - struct g_slicer *gsp; - - pp = bp->bio_to; - gp = pp->geom; - gsp = gp->softc; - if (bp->bio_cmd == BIO_GETATTR) { - if (g_handleattr_off_t(bp, "APM::offset", - gsp->slices[pp->index].offset)) - return (1); - } - return (0); -} - -static void -g_apple_dumpconf(struct sbuf *sb, const char *indent, struct g_geom *gp, - struct g_consumer *cp __unused, struct g_provider *pp) -{ - struct g_apple_softc *mp; - struct g_slicer *gsp; - - gsp = gp->softc; - mp = gsp->softc; - g_slice_dumpconf(sb, indent, gp, cp, pp); - if (pp != NULL) { - if (indent == NULL) { - sbuf_printf(sb, " ty %s", - mp->apmpart[pp->index].am_type); - if (*mp->apmpart[pp->index].am_name) - sbuf_printf(sb, " sn %s", - mp->apmpart[pp->index].am_name); - } else { - sbuf_printf(sb, "%s<name>%s</name>\n", indent, - mp->apmpart[pp->index].am_name); - sbuf_printf(sb, "%s<type>%s</type>\n", indent, - mp->apmpart[pp->index].am_type); - } - } -} - -#if 0 -static void -g_apple_print() -{ - - /* XXX */ -} -#endif - -static struct g_geom * -g_apple_taste(struct g_class *mp, struct g_provider *pp, int insist) -{ - struct g_geom *gp; - struct g_consumer *cp; - int i; - struct g_apple_softc *ms; - struct apm_partition *apm; - u_int sectorsize; - u_char *buf; - - g_trace(G_T_TOPOLOGY, "apple_taste(%s,%s)", mp->name, pp->name); - g_topology_assert(); - gp = g_slice_new(mp, NAPMPART, pp, &cp, &ms, sizeof *ms, g_apple_start); - if (gp == NULL) - return (NULL); - g_topology_unlock(); - do { - if (gp->rank != 2 && insist == 0) - break; - - sectorsize = cp->provider->sectorsize; - if (sectorsize != 512) - break; - - buf = g_read_data(cp, 0, sectorsize, NULL); - if (buf == NULL) - break; - - /* - * Test for the sector 0 driver record signature, and - * validate sector and disk size - */ - if (buf[0] != 'E' && buf[1] != 'R') { - g_free(buf); - break; - } - g_dec_drvrdesc(buf, ms); - g_free(buf); - - if (ms->dd_bsiz != 512) { - break; - } - - /* - * Read in the first partition map - */ - buf = g_read_data(cp, sectorsize, sectorsize, NULL); - if (buf == NULL) - break; - - /* - * Decode the first partition: it's another indication of - * validity, as well as giving the size of the partition - * map - */ - apm = &ms->apmpart[0]; - g_dec_apple_partition(buf, apm); - g_free(buf); - - if (apm->am_sig[0] != 'P' || apm->am_sig[1] != 'M') - break; - ms->am_mapcnt0 = apm->am_mapcnt; - - buf = g_read_data(cp, 2 * sectorsize, - (NAPMPART - 1) * sectorsize, NULL); - if (buf == NULL) - break; - - for (i = 1; i < NAPMPART; i++) { - g_dec_apple_partition(buf + ((i - 1) * sectorsize), - &ms->apmpart[i]); - } - - for (i = 0; i < NAPMPART; i++) { - apm = &ms->apmpart[i]; - - /* - * Validate partition sig and global mapcount - */ - if (apm->am_sig[0] != 'P' || - apm->am_sig[1] != 'M') - continue; - if (apm->am_mapcnt != ms->am_mapcnt0) - continue; - - if (bootverbose) { - printf("APM Slice %d (%s/%s) on %s:\n", - i + 1, apm->am_name, apm->am_type, - gp->name); - /* g_apple_print(i, dp + i); */ - } - g_topology_lock(); - g_slice_config(gp, i, G_SLICE_CONFIG_SET, - (off_t)apm->am_start << 9ULL, - (off_t)apm->am_partcnt << 9ULL, - sectorsize, - "%ss%d", gp->name, i + 1); - g_topology_unlock(); - } - g_free(buf); - break; - } while(0); - g_topology_lock(); - g_access(cp, -1, 0, 0); - if (LIST_EMPTY(&gp->provider)) { - g_slice_spoiled(cp); - return (NULL); - } - return (gp); -} - - -static struct g_class g_apple_class = { - .name = APPLE_CLASS_NAME, - .version = G_VERSION, - .taste = g_apple_taste, - .dumpconf = g_apple_dumpconf, -}; - -DECLARE_GEOM_CLASS(g_apple_class, g_apple); |