GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: sbin/fsck_ext2fs/pass5.c Lines: 0 108 0.0 %
Date: 2017-11-07 Branches: 0 79 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: pass5.c,v 1.18 2015/01/16 06:39:57 deraadt Exp $	*/
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/*	$NetBSD: pass5.c,v 1.7 2000/01/28 16:01:46 bouyer Exp $ */
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/*
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 * Copyright (c) 1997 Manuel Bouyer.
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 * Copyright (c) 1980, 1986, 1993
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 *	The Regents of the University of California.  All rights reserved.
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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. Neither the name of the University nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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 * 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 THE REGENTS OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 */
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#include <sys/param.h>	/* setbit isset */
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#include <sys/time.h>
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#include <ufs/ufs/dinode.h>
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#include <ufs/ext2fs/ext2fs_dinode.h>
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#include <ufs/ext2fs/ext2fs.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "fsutil.h"
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#include "fsck.h"
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#include "extern.h"
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void print_bmap(u_char *,u_int32_t);
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void
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pass5(void)
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{
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	int c;
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	struct m_ext2fs *fs = &sblock;
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	daddr32_t dbase, dmax;
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	daddr32_t d;
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	long i, j;
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	struct inodesc idesc[3];
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	struct bufarea *ino_bitmap = NULL, *blk_bitmap = NULL;
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	char *ibmap, *bbmap;
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	u_int32_t cs_ndir, cs_nbfree, cs_nifree;
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	char msg[255];
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	cs_ndir = 0;
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	cs_nbfree = 0;
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	cs_nifree = 0;
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	ibmap = malloc(fs->e2fs_bsize);
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	bbmap = malloc(fs->e2fs_bsize);
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	if (ibmap == NULL || bbmap == NULL) {
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		errexit("out of memory\n");
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	}
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	for (c = 0; c < fs->e2fs_ncg; c++) {
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		u_int32_t nbfree = 0;
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		u_int32_t nifree = 0;
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		u_int32_t ndirs = 0;
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		nbfree = 0;
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		nifree = fs->e2fs.e2fs_ipg;
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		ndirs = 0;
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		if (blk_bitmap == NULL) {
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			blk_bitmap = getdatablk(letoh32(fs->e2fs_gd[c].ext2bgd_b_bitmap),
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				fs->e2fs_bsize);
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		} else {
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			getblk(blk_bitmap, letoh32(fs->e2fs_gd[c].ext2bgd_b_bitmap),
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				fs->e2fs_bsize);
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		}
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		if (ino_bitmap == NULL) {
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			ino_bitmap = getdatablk(letoh32(fs->e2fs_gd[c].ext2bgd_i_bitmap),
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				fs->e2fs_bsize);
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		} else {
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			getblk(ino_bitmap, letoh32(fs->e2fs_gd[c].ext2bgd_i_bitmap),
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				fs->e2fs_bsize);
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		}
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		memset(bbmap, 0, fs->e2fs_bsize);
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		memset(ibmap, 0, fs->e2fs_bsize);
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		memset(&idesc[0], 0, sizeof idesc);
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		for (i = 0; i < 3; i++) {
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			idesc[i].id_type = ADDR;
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		}
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		j = fs->e2fs.e2fs_ipg * c + 1;
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		for (i = 0; i < fs->e2fs.e2fs_ipg; j++, i++) {
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			if ((j < EXT2_FIRSTINO) && (j != EXT2_ROOTINO)) {
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				setbit(ibmap, i);
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				nifree--;
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				continue;
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			}
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			if (j > fs->e2fs.e2fs_icount) {
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				setbit(ibmap, i);
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				continue;
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			}
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			switch (statemap[j]) {
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			case USTATE:
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				break;
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			case DSTATE:
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			case DCLEAR:
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			case DFOUND:
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				ndirs++;
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				/* fall through */
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			case FSTATE:
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			case FCLEAR:
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				nifree--;
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				setbit(ibmap, i);
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				break;
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			default:
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				errexit("BAD STATE %d FOR INODE I=%llu\n",
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				    statemap[j], (unsigned long long)j);
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			}
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		}
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		/* fill in unused par of the inode map */
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		for (i = fs->e2fs.e2fs_ipg / NBBY; i < fs->e2fs_bsize; i++)
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			ibmap[i] = 0xff;
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		dbase = c * sblock.e2fs.e2fs_bpg +
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		    sblock.e2fs.e2fs_first_dblock;
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		dmax = (c+1) * sblock.e2fs.e2fs_bpg +
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		    sblock.e2fs.e2fs_first_dblock;
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		for (i = 0, d = dbase;
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		     d < dmax;
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		     d ++, i ++) {
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			if (testbmap(d) || d >= sblock.e2fs.e2fs_bcount) {
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				setbit(bbmap, i);
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				continue;
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			} else {
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				nbfree++;
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			}
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		}
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		cs_nbfree += nbfree;
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		cs_nifree += nifree;
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		cs_ndir += ndirs;
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		if (debug && (letoh16(fs->e2fs_gd[c].ext2bgd_nbfree) != nbfree ||
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		    letoh16(fs->e2fs_gd[c].ext2bgd_nifree) != nifree ||
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		    letoh16(fs->e2fs_gd[c].ext2bgd_ndirs) != ndirs)) {
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			printf("summary info for cg %d is %d, %d, %d,"
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					"should be %d, %d, %d\n", c,
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					letoh16(fs->e2fs_gd[c].ext2bgd_nbfree),
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					letoh16(fs->e2fs_gd[c].ext2bgd_nifree),
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					letoh16(fs->e2fs_gd[c].ext2bgd_ndirs),
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					nbfree,
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					nifree,
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					ndirs);
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		}
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		(void)snprintf(msg, sizeof(msg),
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		    "SUMMARY INFORMATIONS WRONG FOR CG #%d", c);
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		if ((letoh16(fs->e2fs_gd[c].ext2bgd_nbfree) != nbfree ||
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			letoh16(fs->e2fs_gd[c].ext2bgd_nifree) != nifree ||
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			letoh16(fs->e2fs_gd[c].ext2bgd_ndirs) != ndirs) &&
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			dofix(&idesc[0], msg)) {
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			fs->e2fs_gd[c].ext2bgd_nbfree = htole16(nbfree);
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			fs->e2fs_gd[c].ext2bgd_nifree = htole16(nifree);
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			fs->e2fs_gd[c].ext2bgd_ndirs = htole16(ndirs);
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			sbdirty();
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		}
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		if (debug && memcmp(blk_bitmap->b_un.b_buf, bbmap, fs->e2fs_bsize)) {
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			printf("blk_bitmap:\n");
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			print_bmap(blk_bitmap->b_un.b_buf, fs->e2fs_bsize);
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			printf("bbmap:\n");
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			print_bmap(bbmap, fs->e2fs_bsize);
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		}
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		(void)snprintf(msg, sizeof(msg),
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		    "BLK(S) MISSING IN BIT MAPS #%d", c);
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		if (memcmp(blk_bitmap->b_un.b_buf, bbmap, fs->e2fs_bsize) &&
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			dofix(&idesc[1], msg)) {
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			memcpy(blk_bitmap->b_un.b_buf, bbmap, fs->e2fs_bsize);
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			dirty(blk_bitmap);
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		}
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		if (debug && memcmp(ino_bitmap->b_un.b_buf, ibmap, fs->e2fs_bsize)) {
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			printf("ino_bitmap:\n");
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			print_bmap(ino_bitmap->b_un.b_buf, fs->e2fs_bsize);
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			printf("ibmap:\n");
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			print_bmap(ibmap, fs->e2fs_bsize);
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		}
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		(void)snprintf(msg, sizeof(msg),
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		    "INODE(S) MISSING IN BIT MAPS #%d", c);
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		if (memcmp(ino_bitmap->b_un.b_buf, ibmap, fs->e2fs_bsize) &&
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			dofix(&idesc[1], msg)) {
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			memcpy(ino_bitmap->b_un.b_buf, ibmap, fs->e2fs_bsize);
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			dirty(ino_bitmap);
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		}
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	}
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	if (debug && (fs->e2fs.e2fs_fbcount != cs_nbfree ||
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		fs->e2fs.e2fs_ficount != cs_nifree)) {
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		printf("summary info bad in superblock: %d, %d should be %d, %d\n",
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		fs->e2fs.e2fs_fbcount, fs->e2fs.e2fs_ficount,
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		cs_nbfree, cs_nifree);
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	}
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	if ((fs->e2fs.e2fs_fbcount != cs_nbfree ||
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		fs->e2fs.e2fs_ficount != cs_nifree)
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	    && dofix(&idesc[0], "SUPERBLK SUMMARY INFORMATION BAD")) {
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		fs->e2fs.e2fs_fbcount = cs_nbfree;
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		fs->e2fs.e2fs_ficount = cs_nifree;
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		sbdirty();
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	}
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	free(ibmap);
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	free(bbmap);
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}
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void
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print_bmap(u_char *map, u_int32_t size)
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{
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	int i, j;
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	i = 0;
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	while (i < size) {
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		printf("%u: ",i);
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		for (j = 0; j < 16; j++, i++)
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			printf("%2x ", (u_int)map[i] & 0xff);
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		printf("\n");
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	}
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}