/*      $NetBSD: md.c,v 1.23 2025/02/24 21:32:26 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 -- shark machine specific routines */

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

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

int boardtype = BOARD_TYPE_NORMAL;

#define SBSA_MODEL_STR  "netbsd,generic-acpi"
#define RPI_MODEL_STR   "raspberrypi,"

void
md_init(void)
{
       static const int mib[2] = {CTL_HW, HW_MODEL};
       size_t len;
       char *cpu_model;

       sysctl(mib, 2, NULL, &len, NULL, 0);
       cpu_model = malloc(len);
       sysctl(mib, 2, cpu_model, &len, NULL, 0);

       if (strstr(cpu_model, RPI_MODEL_STR) != NULL)
               /* this is some kind of Raspberry Pi */
               boardtype = BOARD_TYPE_RPI;
       else if (strstr(cpu_model, SBSA_MODEL_STR) != NULL)
               /* some SBSA compatible machine */
               boardtype = BOARD_TYPE_ACPI;
       else
               /* unknown, assume u-boot + dtb */
               boardtype = BOARD_TYPE_NORMAL;

       free(cpu_model);
}

void
md_init_set_status(int flags)
{

       /*
        * we will extract kernel variants piecewise manually
        * later, just fetch the kernel set, do not unpack it.
        */
       set_kernel_set(SET_KERNEL_1);
       set_noextract_set(SET_KERNEL_1);
}

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;
       }

       /*
        * If the selected scheme does not need two-stage partitioning
        * (like GPT), do not bother to edit the outer partitions.
        */
       if (pm->parts->pscheme->secondary_partitions == NULL ||
           pm->parts->pscheme->secondary_scheme == NULL)
               return true;

       res = edit_outer_parts(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;

       for (i = 0; i < install->num; i++)
               if (install->infos[i].fs_type == FS_MSDOS)
                       return true;

       msg_display(MSG_nomsdospart);
       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)
{

       /*
        * RAW_PART is 2 on evbarm and bad things happen if we
        * write the MBR first and then the disklabel - so postpone
        * the MBR to md_post_disklabel(), unlike other architectures.
        */
       return true;
}

/*
* hook called after writing disklabel to new target disk.
*/
bool
md_post_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 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)
{
       return 0;
}

int
evbarm_extract_finalize(int update)
{
       distinfo *dist;
       char kernelbin[100];
       int (*saved_fetch_fn)(const char *);
#ifdef  _LP64
#define EFIBOOT "/usr/mdec/bootaa64.efi"
#else
#define EFIBOOT "/usr/mdec/bootarm.efi"
#endif

       dist = get_set_distinfo(SET_KERNEL_1);
       if (dist == NULL)
               return 0;

       saved_fetch_fn = fetch_fn;
       extract_file_to(dist, false, "/", "./netbsd", false);
       fetch_fn = NULL;
       make_target_dir("/boot/EFI/boot");
       if (target_file_exists_p(EFIBOOT))
               cp_within_target(EFIBOOT, "/boot/EFI/boot", 0);

       if (boardtype == BOARD_TYPE_ACPI) {
               fetch_fn = saved_fetch_fn;
               return 0;
       }
       if (boardtype == BOARD_TYPE_NORMAL) {
               extract_file_to(dist, false, "/boot", "./netbsd.ub", false);
               fetch_fn = saved_fetch_fn;
               return 0;
       }
       if (boardtype == BOARD_TYPE_RPI) {
               extract_file_to(dist, false, "/boot", "./netbsd.img", false);
               fetch_fn = saved_fetch_fn;
               snprintf(kernelbin, 100, "%s/netbsd.img", targetroot_mnt);
               if (file_exists_p(kernelbin)) {
                       run_program(RUN_DISPLAY,
                           "/bin/cp %s /targetroot/boot/kernel.img", kernelbin);
               } else {
                       msg_display(MSG_rpikernelmissing);
                       process_menu(MENU_ok, NULL);
                       return 1;
               }
       }
       fetch_fn = saved_fetch_fn;
       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();
       add_rc_conf("sshd=YES\n");
       add_rc_conf("dhcpcd=YES\n");
#endif
}

int
md_pre_update(struct install_partition_desc *install)
{
       return 1;
}

/* Upgrade support */
int
md_update(struct install_partition_desc *install)
{
       md_post_newfs(install);
       return 1;
}

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

int
md_check_mbr(struct disk_partitions *parts, mbr_info_t *mbri, bool quiet)
{
       mbr_info_t *ext;
       struct mbr_partition *part;
       int i, hasboot=0;

       for (ext = mbri; ext; ext = ext->extended) {
               part = ext->mbr.mbr_parts;
               for (i=0, hasboot=0; i < MBR_PART_COUNT; part++, i++) {
                       if (part->mbrp_type != MBR_PTYPE_FAT16L &&
                           part->mbrp_type != MBR_PTYPE_FAT32L)
                               continue;
                       hasboot = 1;
                       break;
               }
       }
       if (!hasboot) {
               if (quiet)
                       return 2;
               msg_display(MSG_nomsdospart);
               return ask_reedit(parts);
       }

       return 2;
}

bool
md_parts_use_wholedisk(struct disk_partitions *parts)
{
       struct disk_part_info boot_part = {
               .size = boardtype == BOARD_TYPE_NORMAL ?
                   PART_BOOT_LARGE/parts->bytes_per_sector :
                   PART_BOOT/parts->bytes_per_sector,
               .fs_type = PART_BOOT_TYPE,
               .fs_sub_type = boardtype == BOARD_TYPE_NORMAL ?
                   MBR_PTYPE_FAT32L : MBR_PTYPE_FAT16L,
       };

       return parts_use_wholedisk(parts, 1, &boot_part);
}

/* returns false if no write-back of parts is required */
bool
md_mbr_update_check(struct disk_partitions *parts, mbr_info_t *mbri)
{
       return false;
}

#ifdef HAVE_GPT
/*
* New GPT partitions have been written, update bootloader or remember
* data until needed in md_post_newfs
*/
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)
{
       return true;
}
#endif

void
evbarm_part_defaults(struct pm_devs *my_pm, struct part_usage_info *infos,
   size_t num_usage_infos)
{
       size_t i;

       for (i = 0; i < num_usage_infos; i++) {
               if (infos[i].fs_type == PART_BOOT_TYPE &&
                   infos[i].mount[0] != 0 &&
                   strcmp(infos[i].mount, PART_BOOT_MOUNT) == 0) {
                       infos[i].size = boardtype == BOARD_TYPE_NORMAL ?
                           PART_BOOT_LARGE/my_pm->parts->bytes_per_sector :
                           PART_BOOT/my_pm->parts->bytes_per_sector;
                       infos[i].fs_version = boardtype == BOARD_TYPE_NORMAL ?
                           MBR_PTYPE_FAT32L : MBR_PTYPE_FAT16L;
                       return;
               }
       }
}