/*      $NetBSD: md.c,v 1.12 2024/02/10 18:43:54 andvar 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 -- luna68k machine specific routines */

#include <sys/types.h>
#include <sys/ioctl.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <curses.h>
#include <unistd.h>
#include <fcntl.h>
#include <util.h>

#include "defs.h"
#include "md.h"
#include "msg_defs.h"
#include "menu_defs.h"

#define PART_BOOT_BSIZE 4096
#define PART_BOOT_FSIZE 512

void
md_init(void)
{
}

void
md_init_set_status(int flags)
{

        (void)flags;
}

bool
md_get_info(struct install_partition_desc *install)
{
        struct disklabel disklabel;
        int fd;
        char dev_name[100];

        snprintf(dev_name, sizeof(dev_name), "/dev/r%sc", pm->diskdev);

        fd = open(dev_name, O_RDONLY, 0);
        if (fd < 0) {
                endwin();
                fprintf (stderr, "Can't open %s\n", dev_name);
                exit(1);
        }
        if (ioctl(fd, DIOCGDINFO, &disklabel) == -1) {
                endwin();
                fprintf (stderr, "Can't read disklabel on %s.\n", dev_name);
                close(fd);
                exit(1);
        }
        close(fd);

        pm->dlcyl = disklabel.d_ncylinders;
        pm->dlhead = disklabel.d_ntracks;
        pm->dlsec = disklabel.d_nsectors;
        pm->sectorsize = disklabel.d_secsize;
        pm->dlcylsize = disklabel.d_secpercyl;

        /*
         * Compute whole disk size. Take max of (pm->dlcyl*pm->dlhead*pm->dlsec)
         * and secperunit,  just in case the disk is already labelled.
         * (If our new label's RAW_PART size ends up smaller than the
         * in-core RAW_PART size  value, updating the label will fail.)
         */
        pm->dlsize = pm->dlcyl * pm->dlhead * pm->dlsec;
        if (disklabel.d_secperunit > pm->dlsize)
                pm->dlsize = disklabel.d_secperunit;

        return true;
}

/*
 * 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);
}

static part_id
find_boot_part(struct install_partition_desc *install)
{
        for (size_t i = 0; i < install->num; i++) {
                if (install->infos[i].fs_type != PART_BOOT_TYPE)
                        continue;
                if (install->infos[i].fs_version != PART_BOOT_SUBT)
                        continue;
                if (install->infos[i].size < (PART_BOOT/512))
                        continue;
                if (install->infos[i].cur_start > 0)
                        continue;
                return i;
        }
        return NO_PART;
}

/*
 * any additional partition validation
 */
bool
md_check_partitions(struct install_partition_desc *install)
{

        /*
         * Make sure that a boot partition (old 4.3BSD UFS) is prepared
         * properly for our native bootloader.
         */
        if (find_boot_part(install) != NO_PART)
                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)
{

        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;
}

static int
copy_bootloader(const char *diskdev)
{
        const char *mntdir = "/mnt2";

        msg_fmt_display(MSG_copybootloader, "%s", diskdev);
        if (!run_program(RUN_SILENT | RUN_ERROR_OK,
            "mount %s %s", diskdev, mntdir)) {
                mnt2_mounted = 1;
                run_program(0, "/bin/cp /usr/mdec/boot %s", mntdir);
                run_program(RUN_SILENT | RUN_ERROR_OK, "umount %s", mntdir);
                mnt2_mounted = 0;
        } else {
                /* XXX print proper error message */
                return 1;
        }
        return 0;
}

/*
 * hook called after 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)
{
        char rdisk[STRSIZE], disk[STRSIZE];
        part_id boot_part = find_boot_part(install);

        if (boot_part == NO_PART)
                return 1;

        if (!install->infos[boot_part].parts->pscheme->get_part_device(
            install->infos[boot_part].parts,
            install->infos[boot_part].cur_part_id,
            rdisk, sizeof rdisk, NULL, raw_dev_name, true, true))
                return 1;
        if (!install->infos[boot_part].parts->pscheme->get_part_device(
            install->infos[boot_part].parts,
            install->infos[boot_part].cur_part_id,
            disk, sizeof disk, NULL, plain_name, true, true))
                return 1;

        if (run_program(RUN_DISPLAY | RUN_PROGRESS,
            "/sbin/newfs -V2 -O 0 -b %d -f %d %s",
            PART_BOOT_BSIZE, PART_BOOT_FSIZE, rdisk))
                return 1;
        return copy_bootloader(disk);
}

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)
{
        return 1;
}

/* Upgrade support */
int
md_update(struct install_partition_desc *install)
{
        const char *mntdir = "/mnt2";
        char bootpath[MAXPATHLEN];
        struct stat sb;
        bool hasboot = false;
        char disk[STRSIZE];
        part_id boot_part = find_boot_part(install);

        if (boot_part == NO_PART)
                return 0;

        if (!install->infos[boot_part].parts->pscheme->get_part_device(
            install->infos[boot_part].parts,
            install->infos[boot_part].cur_part_id,
            disk, sizeof disk, NULL, plain_name, true, true))
                return 0;

        /*
         * Check if there is a boot UFS partition and it has the old bootloader.
         * We'll update bootloader only if the old one was installed.
         */
        if (!run_program(RUN_SILENT | RUN_ERROR_OK,
            "mount -r %s %s", disk, mntdir)) {
                mnt2_mounted = 1;
                snprintf(bootpath, sizeof(bootpath), "%s/%s", mntdir, "boot");
                if (stat(bootpath, &sb) == 0 && S_ISREG(sb.st_mode))
                        hasboot = true;
                run_program(RUN_SILENT | RUN_ERROR_OK, "umount %s", mntdir);
                mnt2_mounted = 0;
                if (hasboot)
                        (void)copy_bootloader(disk);
        }
        return 1;
}

int
md_pre_mount(struct install_partition_desc *install, size_t ndx)
{
        return 0;
}

bool
md_parts_use_wholedisk(struct disk_partitions *parts)
{
        return parts_use_wholedisk(parts, 0, NULL);
}

#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