/* $NetBSD: md.c,v 1.8.2.5 2022/02/02 04:25:37 msaitoh Exp $ */ /* * Copyright 1997 Piermont Information Systems Inc. * All rights reserved. * * Based on code written by Philip A. Nelson for Piermont Information * Systems Inc. * * 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 name of Piermont Information Systems Inc. may not be used to endorse * or promote products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``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 PIERMONT INFORMATION SYSTEMS INC. 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. */ /* md.c -- arc machine specific routines */ #include #include #include #include #include #include "defs.h" #include "md.h" #include "msg_defs.h" #include "menu_defs.h" /* * ARC BIOS reognizes only FAT, so we have to have a FAT partition * to store our native bootloader. */ static int nobootfs = 0; void md_init(void) { } void md_init_set_status(int flags) { (void)flags; } bool md_get_info(struct install_partition_desc *install) { int res; if (pm->no_mbr || pm->no_part) return true; again: if (pm->parts == NULL) { const struct disk_partitioning_scheme *ps = select_part_scheme(pm, NULL, true, NULL); if (!ps) return false; struct disk_partitions *parts = (*ps->create_new_for_disk)(pm->diskdev, 0, pm->dlsize, true, NULL); if (!parts) return false; pm->parts = parts; if (ps->size_limit > 0 && pm->dlsize > ps->size_limit) pm->dlsize = ps->size_limit; } res = set_bios_geom_with_mbr_guess(pm->parts); if (res == 0) return false; else if (res == 1) return true; pm->parts->pscheme->destroy_part_scheme(pm->parts); pm->parts = NULL; goto again; } /* * md back-end code for menu-driven BSD disklabel editor. */ int md_make_bsd_partitions(struct install_partition_desc *install) { return make_bsd_partitions(install); } /* * any additional partition validation */ bool md_check_partitions(struct install_partition_desc *install) { size_t i; /* * We need to find a boot partition, otherwise we can't write our * bootloader. We make the assumption that the user hasn't done * something stupid, like move it away from the MBR partition. */ for (i = 0; i < install->num; i++) { if (install->infos[i].fs_type == FS_MSDOS) return true; } msg_display(MSG_nobootpartdisklabel); process_menu(MENU_ok, NULL); return false; } /* * hook called before writing new disklabel. */ bool md_pre_disklabel(struct install_partition_desc *install, struct disk_partitions *parts) { if (parts->parent == NULL) return true; /* no outer partitions */ parts = parts->parent; msg_display_subst(MSG_dofdisk, 3, parts->disk, msg_string(parts->pscheme->name), msg_string(parts->pscheme->short_name)); /* write edited "MBR" onto disk. */ if (!parts->pscheme->write_to_disk(parts)) { msg_display(MSG_wmbrfail); process_menu(MENU_ok, NULL); return false; } return true; } /* * hook called after writing disklabel to new target disk. */ bool md_post_disklabel(struct install_partition_desc *install, struct disk_partitions *parts) { return true; } /* * hook called after upgrade() or install() has finished setting * up the target disk but immediately before the user is given the * ``disks are now set up'' message. */ int md_post_newfs(struct install_partition_desc *install) { if (!nobootfs) { msg_fmt_display(msg_string(MSG_copybootloader), "%s", pm->diskdev); cp_to_target("/usr/mdec/boot", PART_BOOT_MOUNT); } return 0; } int md_post_extract(struct install_partition_desc *install, bool upgrade) { return 0; } void md_cleanup_install(struct install_partition_desc *install) { #ifndef DEBUG enable_rc_conf(); #endif msg_display(MSG_howtoboot); process_menu(MENU_ok, NULL); } int md_pre_update(struct install_partition_desc *install) { size_t i; /* * Verify the msdos partition exists and is big enough. */ for (i = 0; i < install->num; i++) { if (install->infos[i].fs_type != PART_BOOT_TYPE) continue; if (install->infos[i].size/512 >= PART_BOOT_MIN) break; msg_display(MSG_boottoosmall); msg_fmt_display_add(MSG_nobootpart, "%d", 0); if (!ask_yesno(NULL)) return false; nobootfs = 1; break; } if (md_check_partitions(install) == 0) nobootfs = 1; return 1; } /* Upgrade support */ int md_update(struct install_partition_desc *install) { md_post_newfs(install); return 1; } int md_check_mbr(struct disk_partitions *parts, mbr_info_t *mbri, bool quiet) { mbr_info_t *ext; struct mbr_partition *part; int i; for (ext = mbri; ext; ext = ext->extended) { part = ext->mbr.mbr_parts; for (i = 0; i < MBR_PART_COUNT; part++, i++) { if (part->mbrp_type == MBR_PTYPE_FAT12) { pm->bootstart = part->mbrp_start; pm->bootsize = part->mbrp_size; break; } } } if (pm->bootsize < (PART_BOOT_MIN / 512)) { if (quiet) return 0; msg_display(MSG_boottoosmall); return ask_reedit(parts); } if (pm->bootstart == 0 || pm->bootsize == 0) { if (quiet) return 0; msg_display(MSG_nobootpart); return ask_reedit(parts); } return 2; } bool md_parts_use_wholedisk(struct disk_partitions *parts) { struct disk_part_info boot_part = { .size = PART_BOOT / 512, .fs_type = PART_BOOT_TYPE, .fs_sub_type = MBR_PTYPE_FAT12, .last_mounted = PART_BOOT_MOUNT, }; boot_part.nat_type = parts->pscheme->get_fs_part_type( PT_root, boot_part.fs_type, boot_part.fs_sub_type); return parts_use_wholedisk(parts, 1, &boot_part); } int md_pre_mount(struct install_partition_desc *install, size_t ndx) { return 0; } bool md_mbr_update_check(struct disk_partitions *parts, mbr_info_t *mbri) { return false; /* no change, no need to write back */ } #ifdef HAVE_GPT bool md_gpt_post_write(struct disk_partitions *parts, part_id root_id, bool root_is_new, part_id efi_id, bool efi_is_new) { /* no GPT boot support, nothing needs to be done here */ return true; } #endif