/*
 * The new sysinstall program.
 *
 * This is probably the last program in the `sysinstall' line - the next
 * generation being essentially a complete rewrite.
 *
 * $Id: disks.c,v 1.31.2.2 1995/07/21 11:45:38 rgrimes Exp $
 *
 * Copyright (c) 1995
 *	Jordan Hubbard.  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,
 *    verbatim and that no modifications are made prior to this
 *    point in the file.
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by Jordan Hubbard
 *	for the FreeBSD Project.
 * 4. The name of Jordan Hubbard or the FreeBSD project may not be used to
 *    endorse or promote products derived from this software without specific
 *    prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``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 JORDAN HUBBARD OR HIS PETS 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, LIFE 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.
 *
 */

#include "sysinstall.h"
#include <ctype.h>
#include <sys/disklabel.h>

/* Where we start displaying chunk information on the screen */
#define CHUNK_START_ROW		5

/* Where we keep track of MBR chunks */
static struct chunk *chunk_info[10];
static int current_chunk;

static void
record_chunks(Disk *d)
{
    struct chunk *c1;
    int i = 0;
    int last_free = 0;
    if (!d->chunks)
	msgFatal("No chunk list found for %s!", d->name);
    c1 = d->chunks->part;
    current_chunk = 0;
    while (c1) {
	if (c1->type == unused && c1->size > last_free) {
	    last_free = c1->size;
	    current_chunk = i;
	}
	chunk_info[i++] = c1;
	c1 = c1->next;
    }
    chunk_info[i] = NULL;
}

static void
print_chunks(Disk *d)
{
    int row;
    int i;

    if ((!d->bios_cyl || d->bios_cyl > 65536) || (!d->bios_hd || d->bios_hd > 256) || (!d->bios_sect || d->bios_sect >= 64))
	msgConfirm("WARNING:  The detected geometry is incorrect!  Please adjust it to\nthe correct values manually with the (G)eometry command.  If you are\nunsure about the correct geometry (which may be \"translated\"), please\nconsult the Hardware Guide in the Documentation submenu.");
			  
    attrset(A_NORMAL);
    mvaddstr(0, 0, "Disk name:\t");
    clrtobot();
    attrset(A_REVERSE); addstr(d->name); attrset(A_NORMAL);
    attrset(A_REVERSE); mvaddstr(0, 55, "FDISK Partition Editor"); attrset(A_NORMAL);
    mvprintw(1, 0,
	     "BIOS Geometry:\t%lu cyls/%lu heads/%lu sectors",
	     d->bios_cyl, d->bios_hd, d->bios_sect);
    mvprintw(3, 1, "%10s %10s %10s %8s %8s %8s %8s %8s",
	     "Offset", "Size", "End", "Name", "PType", "Desc",
	     "Subtype", "Flags");
    for (i = 0, row = CHUNK_START_ROW; chunk_info[i]; i++, row++) {
	if (i == current_chunk)
	    attrset(A_REVERSE);
	mvprintw(row, 2, "%10ld %10lu %10lu %8s %8d %8s %8d\t%-6s",
		 chunk_info[i]->offset, chunk_info[i]->size,
		 chunk_info[i]->end, chunk_info[i]->name,
		 chunk_info[i]->type, chunk_n[chunk_info[i]->type],
		 chunk_info[i]->subtype, ShowChunkFlags(chunk_info[i]));
	if (i == current_chunk)
	    attrset(A_NORMAL);
    }
}

static void
print_command_summary()
{
    mvprintw(14, 0, "The following commands are supported (in upper or lower case):");
    mvprintw(16, 0, "A = Use Entire Disk    B = Bad Block Scan     C = Create Partition");
    mvprintw(17, 0, "D = Delete Partition   G = Set BIOS Geometry  S = Set Bootable");
    mvprintw(18, 0, "U = Undo All Changes   Q = Finish             W = Write Changes");
    mvprintw(20, 0, "The currently selected partition is displayed in ");
    attrset(A_REVERSE); addstr("reverse"); attrset(A_NORMAL); addstr(" video.");
    mvprintw(21, 0, "Use F1 or ? to get more help, arrow keys to move.");
    move(0, 0);
}

static Disk *
diskPartition(Disk *d)
{
    char *p;
    int key = 0;
    Boolean chunking;
    char *msg = NULL;
    char name[40];

    chunking = TRUE;
    strncpy(name, d->name, 40);
    keypad(stdscr, TRUE);

    clear();
    record_chunks(d);
    while (chunking) {
	print_chunks(d);
	print_command_summary();
	if (msg) {
	    standout(); mvprintw(23, 0, msg); standend();
	    beep();
	    msg = NULL;
	}

	key = toupper(getch());
	switch (key) {

	case '\014':	/* ^L */
	    clear();
	    continue;

	case KEY_UP:
	case '-':
	    if (current_chunk != 0)
		--current_chunk;
	    break;

	case KEY_DOWN:
	case '+':
	case '\r':
	case '\n':
	    if (chunk_info[current_chunk + 1])
		++current_chunk;
	    break;

	case KEY_HOME:
	    current_chunk = 0;
	    break;

	case KEY_END:
	    while (chunk_info[current_chunk + 1])
		++current_chunk;
	    break;

	case KEY_F(1):
	case '?':
	    systemDisplayFile("slice.hlp");
	    break;

	case 'A':
	    All_FreeBSD(d);
	    record_chunks(d);
	    break;

	case 'B':
	    if (chunk_info[current_chunk]->type != freebsd)
		msg = "Can only scan for bad blocks in FreeBSD partition.";
	    else if (strncmp(name, "sd", 2) ||
		     !msgYesNo("This typically makes sense only for ESDI, IDE or MFM drives.\nAre you sure you want to do this on a SCSI disk?"))
		if (chunk_info[current_chunk]->flags & CHUNK_BAD144)
		    chunk_info[current_chunk]->flags &= ~CHUNK_BAD144;
		else
		    chunk_info[current_chunk]->flags |= CHUNK_BAD144;
	    break;

	case 'C':
	    if (chunk_info[current_chunk]->type != unused)
		msg = "Partition in use, delete it first or move to an unused one.";
	    else {
		char *val, tmp[20], *cp;
		int size;

		snprintf(tmp, 20, "%d", chunk_info[current_chunk]->size);
		val = msgGetInput(tmp, "Please specify the size for new FreeBSD partition in blocks, or append\na trailing `M' for megabytes (e.g. 20M).");
		if (val && (size = strtol(val, &cp, 0)) > 0) {
		    if (*cp && toupper(*cp) == 'M')
			size *= 2048;
		    Create_Chunk(d, chunk_info[current_chunk]->offset, size, freebsd, 3,
				 (chunk_info[current_chunk]->flags & CHUNK_ALIGN));
		    record_chunks(d);
		}
	    }
	    break;

	case 'D':
	    if (chunk_info[current_chunk]->type == unused)
		msg = "Partition is already unused!";
	    else {
		Delete_Chunk(d, chunk_info[current_chunk]);
		record_chunks(d);
	    }
	    break;

	case 'G': {
	    char *val, geometry[80];

	    snprintf(geometry, 80, "%lu/%lu/%lu", d->bios_cyl, d->bios_hd, d->bios_sect);
	    val = msgGetInput(geometry,
"Please specify the new geometry in cyl/hd/sect format.\nDon't forget to use the two slash (/) separator characters!\nIt's not possible to parse the field without them.");
	    if (val) {
		d->bios_cyl = strtol(val, &val, 0);
		d->bios_hd = strtol(val + 1, &val, 0);
		d->bios_sect = strtol(val + 1, 0, 0);
	    }
	}
	    break;

	case 'S':
	    /* Set Bootable */
	    chunk_info[current_chunk]->flags |= CHUNK_ACTIVE;
	    break;

	case 'U':
	    Free_Disk(d);
	    d = Open_Disk(name);
	    if (!d)
		msgFatal("Can't reopen disk %s!", name);
	    record_chunks(d);
	    break;

	case 'W':
	    if (!msgYesNo("Are you sure you want to write this now?  You do also\nhave the option of not modifying the disk until *all*\nconfiguration information has been entered, at which\npoint you can do it all at once.  If you're unsure, then\nchoose No at this dialog."))
	      diskPartitionWrite(NULL);
	    break;

	case '|':
	    if (!msgYesNo("Are you sure you want to go into Wizard mode?\nNo seat belts whatsoever are provided!")) {
		dialog_clear();
		end_dialog();
		DialogActive = FALSE;
		slice_wizard(d);
		dialog_clear();
		DialogActive = TRUE;
		record_chunks(d);
	    }
	    else
		msg = "Wise choice!";
	    break;

	case 'Q':
	    chunking = FALSE;
	    break;

	default:
	    beep();
	    msg = "Type F1 or ? for help";
	    break;
	}
    }
    p = CheckRules(d);
    if (p) {
	msgConfirm(p);
	free(p);
    }
    dialog_clear();
    variable_set2(DISK_PARTITIONED, "yes");
    return d;
}

static int
partitionHook(char *str)
{
    Device **devs = NULL;

    /* Clip garbage off the ends */
    string_prune(str);
    str = string_skipwhite(str);
    /* Try and open all the disks */
    while (str) {
	char *cp;

	cp = index(str, '\n');
	if (cp)
	   *cp++ = 0;
	if (!*str) {
	    beep();
	    return 0;
	}
	devs = deviceFind(str, DEVICE_TYPE_DISK);
	if (!devs) {
	    msgConfirm("Unable to find disk %s!", str);
	    return 0;
	}
	else if (devs[1])
	    msgConfirm("Bizarre multiple match for %s!", str);
	devs[0]->private = diskPartition((Disk *)devs[0]->private);
	devs[0]->enabled = TRUE;
	str = cp;
    }
    return devs ? 1 : 0;
}

int
diskPartitionEditor(char *str)
{
    DMenu *menu;
    Device **devs;
    int cnt;

    devs = deviceFind(NULL, DEVICE_TYPE_DISK);
    cnt = deviceCount(devs);
    if (!cnt) {
	msgConfirm("No disks found!  Please verify that your disk controller is being\nproperly probed at boot time.  See the Hardware Guide on the Documentation menu\nfor clues on diagnosing this type of problem.");
	return 0;
    }
    else if (cnt == 1) {
	devs[0]->private = diskPartition((Disk *)devs[0]->private);
	devs[0]->enabled = TRUE;
    }
    else {
	menu = deviceCreateMenu(&MenuDiskDevices, DEVICE_TYPE_DISK, partitionHook);
	if (!menu)
	    msgConfirm("No devices suitable for installation found!\n\nPlease verify that your disk controller (and attached drives) were detected properly.  This can be done by selecting the ``Bootmsg'' option on the main menu and reviewing the boot messages carefully.");
	else {
	    dmenuOpenSimple(menu);
	    free(menu);
	}
    }
    return 0;
}

static u_char *
getBootMgr(void)
{
    extern u_char mbr[], bteasy17[];

    /* Figure out what kind of MBR the user wants */
    if (dmenuOpenSimple(&MenuMBRType)) {
	switch (BootMgr) {
	case 0:
	    return bteasy17;

	case 1:
	    return mbr;

	case 2:
	default:
	    break;
	}
    }
    return NULL;
}

int
diskPartitionWrite(char *str)
{
    extern u_char boot1[], boot2[];
    u_char *mbrContents;
    Device **devs;
    int i;

    mbrContents = getBootMgr();
    devs = deviceFind(NULL, DEVICE_TYPE_DISK);
    if (!devs) {
	msgConfirm("Unable to find any disks to write to??");
	return 0;
    }

    for (i = 0; devs[i]; i++) {
	Chunk *c1;
	Disk *d = (Disk *)devs[i]->private;

	if (!devs[i]->enabled)
	    continue;

	/* Do it once so that it only goes on the first drive */
	if (mbrContents) {
	    Set_Boot_Mgr(d, mbrContents);
	    mbrContents = NULL;
	}

	Set_Boot_Blocks(d, boot1, boot2);
	msgNotify("Writing partition information to drive %s", d->name);
	Write_Disk(d);

	/* Now scan for bad blocks, if necessary */
	for (c1 = d->chunks->part; c1; c1 = c1->next) {
	    if (c1->flags & CHUNK_BAD144) {
		int ret;

		msgNotify("Running bad block scan on partition %s", c1->name);
		ret = vsystem("bad144 -v /dev/r%s 1234", c1->name);
		if (ret)
		    msgConfirm("Bad144 init on %s returned status of %d!", c1->name, ret);
		ret = vsystem("bad144 -v -s /dev/r%s", c1->name);
		if (ret)
		    msgConfirm("Bad144 scan on %s returned status of %d!", c1->name, ret);
	    }
	}
    }
    return 0;
}