383 lines
11 KiB
C
383 lines
11 KiB
C
/* $NetBSD: bsddisklabel.c,v 1.5 2001/01/14 23:45:16 mrg Exp $ */
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/*
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* Copyright 1997 Piermont Information Systems Inc.
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* All rights reserved.
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*
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* Based on code written by Philip A. Nelson for Piermont Information
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* Systems Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Piermont Information Systems Inc.
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* 4. The name of Piermont Information Systems Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* bsddisklabel.c -- generate standard BSD disklabel */
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/* Included by appropriate arch/XXXX/md.c */
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/* For the current state of this file blame abs@netbsd.org */
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int make_bsd_partitions (void);
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/*
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* md back-end code for menu-driven BSD disklabel editor.
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*/
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int
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make_bsd_partitions(void)
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{
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int i, part;
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int freepart;
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int remain;
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char isize[20];
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int maxpart = getmaxpartitions();
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struct disklabel l;
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int varsz = 0, swapsz = 0;
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/*
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* Initialize global variables that track space used on this disk.
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* Standard 4.4BSD 8-partition labels always cover whole disk.
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*/
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ptsize = dlsize - ptstart;
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fsdsize = dlsize; /* actually means `whole disk' */
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fsptsize = dlsize - ptstart; /* netbsd partition -- same as above */
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fsdmb = fsdsize / MEG;
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/* Ask for layout type -- standard or special */
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msg_display(MSG_layout,
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(1.0*fsptsize*sectorsize)/MEG,
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(1.0*minfsdmb*sectorsize)/MEG,
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(1.0*minfsdmb*sectorsize)/MEG+rammb+XNEEDMB);
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process_menu(MENU_layout);
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if (layoutkind == 3)
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ask_sizemult(dlcylsize);
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else
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md_set_sizemultname();
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/* Build standard partitions */
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emptylabel(bsdlabel);
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/* Set initial partition types to unused */
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for (part = 0 ; part < maxpart ; ++part)
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bsdlabel[part].pi_fstype = FS_UNUSED;
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/* We _always_ have a root partition */
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bsdlabel[PART_ROOT].pi_fstype = FS_BSDFFS;
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/* Whole disk partition */
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bsdlabel[PART_RAW].pi_offset = 0;
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bsdlabel[PART_RAW].pi_size = dlsize;
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#ifdef PART_BSDRAW /* BSD area of the disk - only on some (i386) ports */
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bsdlabel[PART_BSDRAW].pi_offset = ptstart;
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bsdlabel[PART_BSDRAW].pi_size = fsptsize;
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#endif
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switch (layoutkind) {
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case 1: /* standard: a root, b swap, c "unused", PART_USR /usr */
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case 2: /* standard X: as above, but with larger swap, and more
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* space in /usr */
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partstart = ptstart;
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/*
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* Defaults:
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* root - always (PART_ROOT)
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* swap - ask, default (PART_SWAP)
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* /usr - ask, default (PART_USR)
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* /var - ask (PART_FIRST_FREE != PART_USR)
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* /home - ask (PART_FIRST_FREE+1 != PART_USR)
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* /tmp - ask mfs
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*/
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layout_swap = layout_usr = 1;
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layout_var = layout_home = layout_tmp = 0;
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freepart = PART_FIRST_FREE;
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process_menu(MENU_layoutparts);
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/* Root */
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if (layout_usr == 0 && layout_home == 0) {
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if (layout_swap) {
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i = NUMSEC(layoutkind * 2 *
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(rammb < DEFSWAPRAM ? DEFSWAPRAM : rammb),
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MEG/sectorsize, dlcylsize);
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swapsz = NUMSEC(i/(MEG/sectorsize)+1,
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MEG/sectorsize, dlcylsize);
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}
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if (layout_var)
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varsz = NUMSEC(DEFVARSIZE, MEG/sectorsize,
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dlcylsize);
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partsize = ptsize - swapsz - varsz;
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} else if (layout_usr)
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partsize = NUMSEC(DEFROOTSIZE, MEG/sectorsize,
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dlcylsize);
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else if (layoutkind == 2)
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partsize = NUMSEC(STDNEEDMB + XNEEDMB, MEG/sectorsize,
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dlcylsize);
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else
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partsize = NUMSEC(STDNEEDMB, MEG/sectorsize, dlcylsize);
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bsdlabel[PART_ROOT].pi_offset = partstart;
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bsdlabel[PART_ROOT].pi_size = partsize;
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bsdlabel[PART_ROOT].pi_bsize = 8192;
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bsdlabel[PART_ROOT].pi_fsize = 1024;
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strcpy(fsmount[PART_ROOT], "/");
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partstart += partsize;
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#if notyet
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if (partstart > ptsize)
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error ...
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#endif
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/* swap */
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if (layout_swap) {
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if (swapsz)
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partsize = swapsz;
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else {
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i = NUMSEC(layoutkind * 2 *
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(rammb < DEFSWAPRAM ? DEFSWAPRAM : rammb),
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MEG/sectorsize, dlcylsize) + partstart;
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partsize = NUMSEC(i/(MEG/sectorsize)+1,
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MEG/sectorsize, dlcylsize) - partstart;
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}
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bsdlabel[PART_SWAP].pi_fstype = FS_SWAP;
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bsdlabel[PART_SWAP].pi_offset = partstart;
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bsdlabel[PART_SWAP].pi_size = partsize;
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partstart += partsize;
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#if notyet
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if (partstart > ptsize)
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error ...
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#endif
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}
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/* var */
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if (layout_var) {
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if (varsz)
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partsize = varsz;
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else
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partsize = NUMSEC(DEFVARSIZE, MEG/sectorsize,
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dlcylsize);
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bsdlabel[freepart].pi_fstype = FS_BSDFFS;
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bsdlabel[freepart].pi_offset = partstart;
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bsdlabel[freepart].pi_size = partsize;
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bsdlabel[freepart].pi_bsize = 8192;
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bsdlabel[freepart].pi_fsize = 1024;
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strcpy(fsmount[freepart++], "/var");
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if (freepart == PART_USR)
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freepart++;
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partstart += partsize;
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#if notyet
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if (partstart > ptsize)
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error ...
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#endif
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}
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/* /usr */
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if (layout_usr) {
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if (layout_home) {
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if (layoutkind == 2)
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partsize = NUMSEC(DEFUSRSIZE + XNEEDMB,
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MEG/sectorsize, dlcylsize);
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else
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partsize = NUMSEC(DEFUSRSIZE,
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MEG/sectorsize, dlcylsize);
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} else
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partsize = fsdsize - partstart;
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bsdlabel[PART_USR].pi_fstype = FS_BSDFFS;
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bsdlabel[PART_USR].pi_offset = partstart;
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bsdlabel[PART_USR].pi_size = partsize;
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bsdlabel[PART_USR].pi_bsize = 8192;
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bsdlabel[PART_USR].pi_fsize = 1024;
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strcpy(fsmount[PART_USR], "/usr");
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partstart += partsize;
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#if notyet
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if (partstart > ptsize)
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error ...
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#endif
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}
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/* home */
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if (layout_home) {
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partsize = fsdsize - partstart;
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bsdlabel[freepart].pi_fstype = FS_BSDFFS;
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bsdlabel[freepart].pi_offset = partstart;
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bsdlabel[freepart].pi_size = partsize;
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bsdlabel[freepart].pi_bsize = 8192;
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bsdlabel[freepart].pi_fsize = 1024;
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strcpy(fsmount[freepart++], "/home");
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if (freepart == PART_USR)
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freepart++;
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partstart += partsize;
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#if notyet
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if (partstart > ptsize)
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error ...
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#endif
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}
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break;
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case 3: /* custom: ask user for all sizes */
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ask_sizemult(dlcylsize);
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/* root */
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partstart = ptstart;
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remain = fsdsize - partstart;
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partsize = NUMSEC(DEFROOTSIZE, MEG/sectorsize, dlcylsize);
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snprintf(isize, 20, "%d", partsize/sizemult);
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msg_prompt(MSG_askfsroot, isize, isize, 20,
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remain/sizemult, multname);
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partsize = NUMSEC(atoi(isize),sizemult, dlcylsize);
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/* If less than a 'unit' left, also use it */
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if (remain - partsize < sizemult)
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partsize = remain;
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bsdlabel[PART_ROOT].pi_offset = partstart;
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bsdlabel[PART_ROOT].pi_size = partsize;
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bsdlabel[PART_ROOT].pi_bsize = 8192;
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bsdlabel[PART_ROOT].pi_fsize = 1024;
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strcpy(fsmount[PART_ROOT], "/");
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partstart += partsize;
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/* swap */
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remain = fsdsize - partstart;
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if (remain > 0) {
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i = NUMSEC(2 *
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(rammb < DEFSWAPRAM ? DEFSWAPRAM : rammb),
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MEG/sectorsize, dlcylsize) + partstart;
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partsize = NUMSEC(i/(MEG/sectorsize)+1, MEG/sectorsize,
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dlcylsize) - partstart;
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if (partsize > remain)
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partsize = remain;
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snprintf(isize, 20, "%d", partsize/sizemult);
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msg_prompt_add(MSG_askfsswap, isize, isize, 20,
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remain/sizemult, multname);
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partsize = NUMSEC(atoi(isize),sizemult, dlcylsize);
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if (partsize) {
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/* If less than a 'unit' left, also use it */
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if (remain - partsize < sizemult)
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partsize = remain;
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bsdlabel[PART_SWAP].pi_fstype = FS_SWAP;
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bsdlabel[PART_SWAP].pi_offset = partstart;
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bsdlabel[PART_SWAP].pi_size = partsize;
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partstart += partsize;
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}
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}
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/* /usr */
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remain = fsdsize - partstart;
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if (remain > 0) {
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partsize = remain;
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snprintf(isize, 20, "%d", partsize/sizemult);
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msg_prompt_add(MSG_askfsusr, isize, isize, 20,
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remain/sizemult, multname);
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partsize = NUMSEC(atoi(isize),sizemult, dlcylsize);
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if (partsize) {
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/* If less than a 'unit' left, also use it */
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if (remain - partsize < sizemult)
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partsize = remain;
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bsdlabel[PART_USR].pi_fstype = FS_BSDFFS;
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bsdlabel[PART_USR].pi_offset = partstart;
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bsdlabel[PART_USR].pi_size = partsize;
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bsdlabel[PART_USR].pi_bsize = 8192;
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bsdlabel[PART_USR].pi_fsize = 1024;
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strcpy(fsmount[PART_USR], "/usr");
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partstart += partsize;
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}
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}
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/* Others ... */
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remain = fsdsize - partstart;
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if (remain > 0)
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msg_display(MSG_otherparts);
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part = PART_FIRST_FREE;
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for (; remain > 0 && part < maxpart; ++part ) {
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if (bsdlabel[part].pi_fstype != FS_UNUSED)
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continue;
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partsize = fsdsize - partstart;
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snprintf(isize, 20, "%d", partsize/sizemult);
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msg_prompt_add(MSG_askfspart, isize, isize, 20,
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diskdev, partition_name(part),
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remain/sizemult, multname);
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partsize = NUMSEC(atoi(isize),sizemult, dlcylsize);
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/* If less than a 'unit' left, also use it */
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if (remain - partsize < sizemult)
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partsize = remain;
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bsdlabel[part].pi_fstype = FS_BSDFFS;
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bsdlabel[part].pi_offset = partstart;
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bsdlabel[part].pi_size = partsize;
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bsdlabel[part].pi_bsize = 8192;
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bsdlabel[part].pi_fsize = 1024;
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msg_prompt_add(MSG_mountpoint, NULL, fsmount[part],
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20);
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partstart += partsize;
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remain = fsdsize - partstart;
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}
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break;
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case 4: /* use existing disklabel */
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if (get_real_geom(diskdev, &l) == 0) {
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msg_display(MSG_abort); /* XXX more informative */
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return 0;
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}
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for (i = 0; i < maxpart; i++) {
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#define p l.d_partitions[i]
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bsdlabel[i].pi_size = p.p_size;
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bsdlabel[i].pi_offset = p.p_offset;
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if (i != RAW_PART) {
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bsdlabel[i].pi_fstype = p.p_fstype;
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bsdlabel[i].pi_bsize = p.p_fsize * p.p_frag;
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bsdlabel[i].pi_fsize = p.p_fsize;
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/* menu to get fsmount[] entry */
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#undef p
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} else
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bsdlabel[i].pi_fstype = FS_UNUSED;
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}
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msg_display(MSG_postuseexisting);
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getchar();
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break;
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}
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/*
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* OK, we have a partition table. Give the user the chance to
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* edit it and verify it's OK, or abort altogether.
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*/
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edit_check:
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if (edit_and_check_label(bsdlabel, maxpart, RAW_PART, RAW_PART) == 0) {
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msg_display(MSG_abort);
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return 0;
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}
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if (md_check_partitions() == 0)
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goto edit_check;
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/* Disk name */
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msg_prompt(MSG_packname, "mydisk", bsddiskname, DISKNAME_SIZE);
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/* save label to disk for MI code to update. */
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(void) savenewlabel(bsdlabel, maxpart);
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/* Everything looks OK. */
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return (1);
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}
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