/* $NetBSD: hppa.c,v 1.2 2019/05/07 04:35:31 thorpej Exp $ */ /*- * Copyright (c) 2002 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Luke Mewburn of Wasabi Systems. * * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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. */ #if HAVE_NBTOOL_CONFIG_H #include "nbtool_config.h" #endif #include #if !defined(__lint) __RCSID("$NetBSD: hppa.c,v 1.2 2019/05/07 04:35:31 thorpej Exp $"); #endif /* !__lint */ /* We need the target disklabel.h, not the hosts one..... */ #ifdef HAVE_NBTOOL_CONFIG_H #include "nbtool_config.h" #include #else #include #endif #include #include #include #include #include #include #include #include #include #include "installboot.h" #define HPPA_LABELOFFSET 512 #define HPPA_LABELSIZE 404 /* reserve 16 partitions */ #define HPPA_BOOT_BLOCK_SIZE 8192 static int hppa_clearboot(ib_params *); static int hppa_setboot(ib_params *); struct ib_mach ib_mach_hppa = { .name = "hppa", .setboot = hppa_setboot, .clearboot = hppa_clearboot, .editboot = no_editboot, }; static int hppa_clearboot(ib_params *params) { char bb[HPPA_BOOT_BLOCK_SIZE]; int retval, eol; ssize_t rv; assert(params != NULL); assert(params->fsfd != -1); assert(params->filesystem != NULL); retval = 0; /* read disklabel on the target disk */ rv = pread(params->fsfd, bb, sizeof bb, 0); if (rv == -1) { warn("Reading `%s'", params->filesystem); goto done; } else if (rv != sizeof bb) { warnx("Reading `%s': short read", params->filesystem); goto done; } /* clear header */ memset(bb, 0, HPPA_LABELOFFSET); eol = HPPA_LABELOFFSET + HPPA_LABELSIZE; memset(&bb[eol], 0, sizeof bb - eol); if (params->flags & IB_VERBOSE) { printf("%slearing bootstrap\n", (params->flags & IB_NOWRITE) ? "Not c" : "C"); } if (params->flags & IB_NOWRITE) { retval = 1; goto done; } rv = pwrite(params->fsfd, bb, sizeof bb, 0); if (rv == -1) { warn("Writing `%s'", params->filesystem); goto done; } else if (rv != HPPA_BOOT_BLOCK_SIZE) { warnx("Writing `%s': short write", params->filesystem); goto done; } else retval = 1; done: return (retval); } static int hppa_setboot(ib_params *params) { struct stat bootstrapsb; char bb[HPPA_BOOT_BLOCK_SIZE]; struct { char l_off[HPPA_LABELOFFSET]; struct disklabel l; char l_pad[HPPA_BOOT_BLOCK_SIZE - HPPA_LABELOFFSET - sizeof(struct disklabel)]; } label; unsigned int secsize, npart; int retval; ssize_t rv; assert(params != NULL); assert(params->fsfd != -1); assert(params->filesystem != NULL); assert(params->s1fd != -1); assert(params->stage1 != NULL); retval = 0; /* read disklabel on the target disk */ rv = pread(params->fsfd, &label, HPPA_BOOT_BLOCK_SIZE, 0); if (rv == -1) { warn("Reading `%s'", params->filesystem); goto done; } else if (rv != HPPA_BOOT_BLOCK_SIZE) { warnx("Reading `%s': short read", params->filesystem); goto done; } if (fstat(params->s1fd, &bootstrapsb) == -1) { warn("Examining `%s'", params->stage1); goto done; } if (!S_ISREG(bootstrapsb.st_mode)) { warnx("`%s' must be a regular file", params->stage1); goto done; } /* check if valid disklabel exists */ secsize = be32toh(label.l.d_secsize); npart = be16toh(label.l.d_npartitions); if (label.l.d_magic != htobe32(DISKMAGIC) || label.l.d_magic2 != htobe32(DISKMAGIC) || secsize == 0 || secsize & (secsize - 1) || npart > MAXMAXPARTITIONS) { warnx("No disklabel in `%s'", params->filesystem); /* then check if boot partition exists */ } else if (npart < 1 || label.l.d_partitions[0].p_size == 0) { warnx("Partition `a' doesn't exist in %s", params->filesystem); /* check if the boot partition is below 2GB */ } else if (be32toh(label.l.d_partitions[0].p_offset) + be32toh(label.l.d_partitions[0].p_size) > ((unsigned)2*1024*1024*1024) / secsize) { warnx("Partition `a' of `%s' exceeds 2GB boundary.", params->filesystem); warnx("It won't boot since hppa PDC can handle only 2GB."); goto done; } /* read boot loader */ memset(&bb, 0, sizeof bb); rv = read(params->s1fd, &bb, sizeof bb); if (rv == -1) { warn("Reading `%s'", params->stage1); goto done; } /* then, overwrite disklabel */ memcpy(&bb[HPPA_LABELOFFSET], &label.l, HPPA_LABELSIZE); if (params->flags & IB_VERBOSE) { printf("Bootstrap start sector: %#x\n", 0); printf("Bootstrap byte count: %#zx\n", rv); printf("%sriting bootstrap\n", (params->flags & IB_NOWRITE) ? "Not w" : "W"); } if (params->flags & IB_NOWRITE) { retval = 1; goto done; } /* write boot loader and disklabel into the target disk */ rv = pwrite(params->fsfd, &bb, HPPA_BOOT_BLOCK_SIZE, 0); if (rv == -1) { warn("Writing `%s'", params->filesystem); goto done; } else if (rv != HPPA_BOOT_BLOCK_SIZE) { warnx("Writing `%s': short write", params->filesystem); goto done; } else retval = 1; done: return (retval); }