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NetBSD/sbin/fsdb/fsdb.c

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/* $NetBSD: fsdb.c,v 1.51 2020/04/05 15:25:40 joerg Exp $ */
/*-
* Copyright (c) 1996, 2017 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by John T. Kohl.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 THE FOUNDATION OR CONTRIBUTORS
* 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.
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: fsdb.c,v 1.51 2020/04/05 15:25:40 joerg Exp $");
#endif /* not lint */
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/param.h>
#include <sys/time.h>
#include <sys/mount.h>
#include <ctype.h>
#include <fcntl.h>
#include <grp.h>
#include <histedit.h>
#include <limits.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <err.h>
#include <ufs/ufs/dinode.h>
#include <ufs/ufs/dir.h>
#include <ufs/ffs/fs.h>
#include <ufs/ffs/ffs_extern.h>
#include "fsdb.h"
#include "fsck.h"
#include "extern.h"
struct bufarea bufhead;
struct bufarea sblk;
struct bufarea asblk;
struct bufarea cgblk;
struct bufarea appleufsblk;
struct bufarea *pdirbp;
struct bufarea *pbp;
struct fs *sblock;
struct fs *altsblock;
struct cg *cgrp;
struct fs *sblocksave;
struct dups *duplist;
struct dups *muldup;
struct zlncnt *zlnhead;
struct inoinfo **inphead, **inpsort;
long numdirs, dirhash, listmax, inplast;
struct uquot_hash *uquot_user_hash;
struct uquot_hash *uquot_group_hash;
uint8_t q2h_hash_shift;
uint16_t q2h_hash_mask;
struct inostatlist *inostathead;
long dev_bsize;
long secsize;
char nflag;
char yflag;
int Uflag;
int bflag;
int debug;
int zflag;
int cvtlevel;
int doinglevel1;
int doinglevel2;
int newinofmt;
char usedsoftdep;
int preen;
int forceimage;
int is_ufs2;
int markclean;
char havesb;
char skipclean;
int fsmodified;
int fsreadfd;
int fswritefd;
int rerun;
char resolved;
int endian;
int doswap;
int needswap;
int do_blkswap;
int do_dirswap;
int isappleufs;
daddr_t maxfsblock;
char *blockmap;
ino_t maxino;
int dirblksiz;
daddr_t n_blks;
ino_t n_files;
long countdirs;
int got_siginfo;
struct ufs1_dinode ufs1_zino;
struct ufs2_dinode ufs2_zino;
/* Used to keep state for "saveblks" command. */
struct wrinfo {
off_t size;
off_t written_size;
int fd;
};
__dead static void usage(void);
static int cmdloop(void);
static char *prompt(EditLine *);
static int scannames(struct inodesc *);
static int dolookup(char *);
static int chinumfunc(struct inodesc *);
static int chnamefunc(struct inodesc *);
static int dotime(char *, int32_t *, int32_t *);
static void print_blks32(int32_t *buf, int size, uint64_t *blknum, struct wrinfo *wrp);
static void print_blks64(int64_t *buf, int size, uint64_t *blknum, struct wrinfo *wrp);
static void print_indirblks32(uint32_t blk, int ind_level,
uint64_t *blknum, struct wrinfo *wrp);
static void print_indirblks64(uint64_t blk, int ind_level,
uint64_t *blknum, struct wrinfo *wrp);
static int compare_blk32(uint32_t *, uint32_t);
static int compare_blk64(uint64_t *, uint64_t);
static int founddatablk(uint64_t);
static int find_blks32(uint32_t *buf, int size, uint32_t *blknum);
static int find_blks64(uint64_t *buf, int size, uint64_t *blknum);
static int find_indirblks32(uint32_t blk, int ind_level,
uint32_t *blknum);
static int find_indirblks64(uint64_t blk, int ind_level,
uint64_t *blknum);
union dinode *curinode;
ino_t curinum;
static void
usage(void)
{
errx(1, "usage: %s [-dFn] -f <fsname>", getprogname());
}
/*
* We suck in lots of fsck code, and just pick & choose the stuff we want.
*
* fsreadfd is set up to read from the file system, fswritefd to write to
* the file system.
*/
int
main(int argc, char *argv[])
{
int ch, rval;
char *fsys = NULL;
forceimage = 0;
debug = 0;
isappleufs = 0;
while ((ch = getopt(argc, argv, "dFf:n")) != -1) {
switch (ch) {
case 'd':
debug++;
break;
case 'F':
forceimage = 1;
break;
case 'f':
fsys = optarg;
break;
case 'n':
nflag++;
break;
default:
usage();
}
}
if (fsys == NULL)
usage();
endian = 0;
if (setup(fsys, fsys) <= 0)
errx(1, "cannot set up file system `%s'", fsys);
printf("Editing file system `%s'\nLast Mounted on %s\n", fsys,
sblock->fs_fsmnt);
rval = cmdloop();
if (nflag)
exit(rval);
sblock->fs_clean = 0; /* mark it dirty */
sbdirty();
markclean = 0;
ckfini(1);
printf("*** FILE SYSTEM MARKED DIRTY\n");
printf("*** BE SURE TO RUN FSCK TO CLEAN UP ANY DAMAGE\n");
printf("*** IF IT WAS MOUNTED, RE-MOUNT WITH -u -o reload\n");
exit(rval);
}
#define CMDFUNC(func) static int func (int argc, char *argv[])
CMDFUNC(helpfn);
CMDFUNC(focus); /* focus on inode */
CMDFUNC(active); /* print active inode */
CMDFUNC(focusname); /* focus by name */
CMDFUNC(zapi); /* clear inode */
CMDFUNC(uplink); /* incr link */
CMDFUNC(downlink); /* decr link */
CMDFUNC(linkcount); /* set link count */
CMDFUNC(quit); /* quit */
CMDFUNC(ls); /* list directory */
CMDFUNC(blks); /* list blocks */
CMDFUNC(findblk); /* find block */
CMDFUNC(rm); /* remove name */
CMDFUNC(ln); /* add name */
CMDFUNC(newtype); /* change type */
CMDFUNC(chmode); /* change mode */
CMDFUNC(chlen); /* change length */
CMDFUNC(chaflags); /* change flags */
CMDFUNC(chgen); /* change generation */
CMDFUNC(chowner); /* change owner */
CMDFUNC(chgroup); /* Change group */
CMDFUNC(back); /* pop back to last ino */
CMDFUNC(chmtime); /* Change mtime */
CMDFUNC(chctime); /* Change ctime */
CMDFUNC(chatime); /* Change atime */
CMDFUNC(chinum); /* Change inode # of dirent */
CMDFUNC(chname); /* Change dirname of dirent */
static struct cmdtable cmds[] = {
{"help", "Print out help", 1, 1, helpfn},
{"?", "Print out help", 1, 1, helpfn},
{"inode", "Set active inode to INUM", 2, 2, focus},
{"clri", "Clear inode INUM", 2, 2, zapi},
{"lookup", "Set active inode by looking up NAME", 2, 2, focusname},
{"cd", "Set active inode by looking up NAME", 2, 2, focusname},
{"back", "Go to previous active inode", 1, 1, back},
{"active", "Print active inode", 1, 1, active},
{"print", "Print active inode", 1, 1, active},
{"uplink", "Increment link count", 1, 1, uplink},
{"downlink", "Decrement link count", 1, 1, downlink},
{"linkcount", "Set link count to COUNT", 2, 2, linkcount},
{"ls", "List current inode as directory", 1, 1, ls},
{"blks", "List current inode's data blocks", 1, 1, blks},
{"saveblks", "Save current inode's data blocks", 2, 2, blks},
{"findblk", "Find inode owning disk block(s)", 2, 33, findblk},
{"rm", "Remove NAME from current inode directory", 2, 2, rm},
{"del", "Remove NAME from current inode directory", 2, 2, rm},
{"ln", "Hardlink INO into current inode directory as NAME", 3, 3, ln},
{"chinum", "Change dir entry number INDEX to INUM", 3, 3, chinum},
{"chname", "Change dir entry number INDEX to NAME", 3, 3, chname},
{"chtype", "Change type of current inode to TYPE", 2, 2, newtype},
{"chmod", "Change mode of current inode to MODE", 2, 2, chmode},
{"chown", "Change owner of current inode to OWNER", 2, 2, chowner},
{"chlen", "Change length of current inode to LENGTH", 2, 2, chlen},
{"chgrp", "Change group of current inode to GROUP", 2, 2, chgroup},
{"chflags", "Change flags of current inode to FLAGS", 2, 2, chaflags},
{"chgen", "Change generation number of current inode to GEN", 2, 2,
chgen},
{"mtime", "Change mtime of current inode to MTIME", 2, 2, chmtime},
{"ctime", "Change ctime of current inode to CTIME", 2, 2, chctime},
{"atime", "Change atime of current inode to ATIME", 2, 2, chatime},
{"quit", "Exit", 1, 1, quit},
{"q", "Exit", 1, 1, quit},
{"exit", "Exit", 1, 1, quit},
{ .cmd = NULL},
};
static int
helpfn(int argc, char *argv[])
{
struct cmdtable *cmdtp;
printf("Commands are:\n%-10s %5s %5s %s\n",
"command", "min argc", "max argc", "what");
for (cmdtp = cmds; cmdtp->cmd; cmdtp++)
printf("%-10s %5u %5u %s\n",
cmdtp->cmd, cmdtp->minargc, cmdtp->maxargc, cmdtp->helptxt);
return 0;
}
static char *
prompt(EditLine *el)
{
static char pstring[64];
snprintf(pstring, sizeof(pstring), "fsdb (inum: %llu)> ",
(unsigned long long)curinum);
return pstring;
}
static int
cmdloop(void)
{
char *line;
const char *elline;
int cmd_argc, rval = 0, known;
#define scratch known
char **cmd_argv;
struct cmdtable *cmdp;
History *hist;
HistEvent he;
EditLine *elptr;
curinode = ginode(UFS_ROOTINO);
curinum = UFS_ROOTINO;
printactive();
hist = history_init();
history(hist, &he, H_SETSIZE, 100); /* 100 elt history buffer */
elptr = el_init(getprogname(), stdin, stdout, stderr);
el_set(elptr, EL_EDITOR, "emacs");
el_set(elptr, EL_PROMPT, prompt);
el_set(elptr, EL_HIST, history, hist);
el_source(elptr, NULL);
while ((elline = el_gets(elptr, &scratch)) != NULL && scratch != 0) {
if (debug)
printf("command `%s'\n", elline);
history(hist, &he, H_ENTER, elline);
line = strdup(elline);
cmd_argv = crack(line, &cmd_argc);
if (cmd_argc) {
/*
* el_parse returns -1 to signal that it's not been
* handled internally.
*/
if (el_parse(elptr, cmd_argc, (void *)cmd_argv) != -1)
continue;
known = 0;
for (cmdp = cmds; cmdp->cmd; cmdp++) {
if (!strcmp(cmdp->cmd, cmd_argv[0])) {
if (cmd_argc >= cmdp->minargc &&
cmd_argc <= cmdp->maxargc)
rval =
(*cmdp->handler)(cmd_argc,
cmd_argv);
else
rval = argcount(cmdp, cmd_argc,
cmd_argv);
known = 1;
break;
}
}
if (!known)
warnx("unknown command `%s'", cmd_argv[0]),
rval = 1;
} else
rval = 0;
free(line);
if (rval < 0)
return rval;
if (rval)
warnx("rval was %d", rval);
}
el_end(elptr);
history_end(hist);
return rval;
}
static ino_t ocurrent;
#define GETINUM(ac,inum) inum = strtoull(argv[ac], &cp, 0); \
if (inum < UFS_ROOTINO || inum >= maxino || cp == argv[ac] || *cp != '\0' ) { \
printf("inode %llu out of range; range is [%llu,%llu]\n", \
(unsigned long long)inum, (unsigned long long)UFS_ROOTINO, \
(unsigned long long)maxino); \
return 1; \
}
/*
* Focus on given inode number
*/
CMDFUNC(focus)
{
ino_t inum;
char *cp;
GETINUM(1, inum);
curinode = ginode(inum);
ocurrent = curinum;
curinum = inum;
printactive();
return 0;
}
CMDFUNC(back)
{
curinum = ocurrent;
curinode = ginode(curinum);
printactive();
return 0;
}
CMDFUNC(zapi)
{
ino_t inum;
union dinode *dp;
char *cp;
GETINUM(1, inum);
dp = ginode(inum);
clearinode(dp);
inodirty();
if (curinode) /* re-set after potential change */
curinode = ginode(curinum);
return 0;
}
CMDFUNC(active)
{
printactive();
return 0;
}
CMDFUNC(quit)
{
return -1;
}
CMDFUNC(uplink)
{
int16_t nlink;
if (!checkactive())
return 1;
nlink = iswap16(DIP(curinode, nlink));
nlink++;
DIP_SET(curinode, nlink, iswap16(nlink));
printf("inode %llu link count now %d\n", (unsigned long long)curinum,
nlink);
inodirty();
return 0;
}
CMDFUNC(downlink)
{
int16_t nlink;
if (!checkactive())
return 1;
nlink = iswap16(DIP(curinode, nlink));
nlink--;
DIP_SET(curinode, nlink, iswap16(nlink));
printf("inode %llu link count now %d\n", (unsigned long long)curinum,
nlink);
inodirty();
return 0;
}
static const char *typename[] = {
"unknown",
"fifo",
"char special",
"unregistered #3",
"directory",
"unregistered #5",
"blk special",
"unregistered #7",
"regular",
"unregistered #9",
"symlink",
"unregistered #11",
"socket",
"unregistered #13",
"whiteout",
};
static int slot;
static int
scannames(struct inodesc *idesc)
{
struct direct *dirp = idesc->id_dirp;
printf("slot %d ino %d reclen %d: %s, `%.*s'\n",
slot++, iswap32(dirp->d_ino), iswap16(dirp->d_reclen),
typename[dirp->d_type],
dirp->d_namlen, dirp->d_name);
return (KEEPON);
}
CMDFUNC(ls)
{
struct inodesc idesc;
checkactivedir(); /* let it go on anyway */
slot = 0;
idesc.id_number = curinum;
idesc.id_func = scannames;
idesc.id_type = DATA;
idesc.id_fix = IGNORE;
ckinode(curinode, &idesc);
curinode = ginode(curinum);
return 0;
}
CMDFUNC(blks)
{
uint64_t blkno = 0;
int i, type;
struct wrinfo wrinfo, *wrp = NULL;
if (strcmp(argv[0], "saveblks") == 0) {
wrinfo.fd = open(argv[1], O_WRONLY | O_TRUNC | O_CREAT, 0644);
if (wrinfo.fd == -1) {
warn("unable to create file %s", argv[1]);
return 0;
}
wrinfo.size = DIP(curinode, size);
wrinfo.written_size = 0;
wrp = &wrinfo;
}
if (!curinode) {
warnx("no current inode");
return 0;
}
type = iswap16(DIP(curinode, mode)) & IFMT;
if (type != IFDIR && type != IFREG) {
warnx("inode %llu not a file or directory",
(unsigned long long)curinum);
return 0;
}
if (is_ufs2) {
printf("I=%llu %lld blocks\n", (unsigned long long)curinum,
(long long)(iswap64(curinode->dp2.di_blocks)));
} else {
printf("I=%llu %d blocks\n", (unsigned long long)curinum,
iswap32(curinode->dp1.di_blocks));
}
printf("Direct blocks:\n");
if (is_ufs2)
print_blks64(curinode->dp2.di_db, UFS_NDADDR, &blkno, wrp);
else
print_blks32(curinode->dp1.di_db, UFS_NDADDR, &blkno, wrp);
if (is_ufs2) {
for (i = 0; i < UFS_NIADDR; i++)
print_indirblks64(iswap64(curinode->dp2.di_ib[i]), i,
&blkno, wrp);
} else {
for (i = 0; i < UFS_NIADDR; i++)
print_indirblks32(iswap32(curinode->dp1.di_ib[i]), i,
&blkno, wrp);
}
return 0;
}
static int findblk_numtofind;
static int wantedblksize;
CMDFUNC(findblk)
{
ino_t inum, inosused;
uint32_t *wantedblk32 = NULL;
uint64_t *wantedblk64 = NULL;
struct cg *cgp = cgrp;
int i, c;
ocurrent = curinum;
wantedblksize = (argc - 1);
if (is_ufs2) {
wantedblk64 = malloc(sizeof(uint64_t) * wantedblksize);
if (wantedblk64 == NULL) {
perror("malloc");
return 1;
}
memset(wantedblk64, 0, sizeof(uint64_t) * wantedblksize);
for (i = 1; i < argc; i++)
wantedblk64[i - 1] =
FFS_DBTOFSB(sblock, strtoull(argv[i], NULL, 0));
} else {
wantedblk32 = malloc(sizeof(uint32_t) * wantedblksize);
if (wantedblk32 == NULL) {
perror("malloc");
return 1;
}
memset(wantedblk32, 0, sizeof(uint32_t) * wantedblksize);
for (i = 1; i < argc; i++)
wantedblk32[i - 1] =
FFS_DBTOFSB(sblock, strtoull(argv[i], NULL, 0));
}
findblk_numtofind = wantedblksize;
for (c = 0; c < sblock->fs_ncg; c++) {
inum = c * sblock->fs_ipg;
getblk(&cgblk, cgtod(sblock, c), sblock->fs_cgsize);
memcpy(cgp, cgblk.b_un.b_cg, sblock->fs_cgsize);
if (needswap)
ffs_cg_swap(cgblk.b_un.b_cg, cgp, sblock);
if (is_ufs2)
inosused = cgp->cg_initediblk;
else
inosused = sblock->fs_ipg;
for (; inosused > 0; inum++, inosused--) {
if (inum < UFS_ROOTINO)
continue;
if (is_ufs2 ? compare_blk64(wantedblk64,
ino_to_fsba(sblock, inum)) :
compare_blk32(wantedblk32,
ino_to_fsba(sblock, inum))) {
printf("block %llu: inode block (%llu-%llu)\n",
(unsigned long long)FFS_FSBTODB(sblock,
ino_to_fsba(sblock, inum)),
(unsigned long long)
(inum / FFS_INOPB(sblock)) * FFS_INOPB(sblock),
(unsigned long long)
(inum / FFS_INOPB(sblock) + 1) * FFS_INOPB(sblock));
findblk_numtofind--;
if (findblk_numtofind == 0)
goto end;
}
curinum = inum;
curinode = ginode(inum);
switch (iswap16(DIP(curinode, mode)) & IFMT) {
case IFDIR:
case IFREG:
if (DIP(curinode, blocks) == 0)
continue;
break;
case IFLNK:
{
uint64_t size = iswap64(DIP(curinode, size));
if (size > 0 &&
size < (uint64_t)sblock->fs_maxsymlinklen &&
DIP(curinode, blocks) == 0)
continue;
else
break;
}
default:
continue;
}
if (is_ufs2 ?
find_blks64(curinode->dp2.di_db, UFS_NDADDR,
wantedblk64) :
find_blks32(curinode->dp1.di_db, UFS_NDADDR,
wantedblk32))
goto end;
for (i = 0; i < UFS_NIADDR; i++) {
if (is_ufs2 ?
compare_blk64(wantedblk64,
iswap64(curinode->dp2.di_ib[i])) :
compare_blk32(wantedblk32,
iswap32(curinode->dp1.di_ib[i])))
if (founddatablk(is_ufs2 ?
iswap64(curinode->dp2.di_ib[i]) :
iswap32(curinode->dp1.di_ib[i])))
goto end;
if (is_ufs2 ? (curinode->dp2.di_ib[i] != 0) :
(curinode->dp1.di_ib[i] != 0))
if (is_ufs2 ?
find_indirblks64(
iswap64(curinode->dp2.di_ib[i]),
i, wantedblk64) :
find_indirblks32(
iswap32(curinode->dp1.di_ib[i]),
i, wantedblk32))
goto end;
}
}
}
end:
if (wantedblk32)
free(wantedblk32);
if (wantedblk64)
free(wantedblk64);
curinum = ocurrent;
curinode = ginode(curinum);
return 0;
}
static int
compare_blk32(uint32_t *wantedblk, uint32_t curblk)
{
int i;
for (i = 0; i < wantedblksize; i++) {
if (wantedblk[i] != 0 && wantedblk[i] == curblk) {
wantedblk[i] = 0;
return 1;
}
}
return 0;
}
static int
compare_blk64(uint64_t *wantedblk, uint64_t curblk)
{
int i;
for (i = 0; i < wantedblksize; i++) {
if (wantedblk[i] != 0 && wantedblk[i] == curblk) {
wantedblk[i] = 0;
return 1;
}
}
return 0;
}
static int
founddatablk(uint64_t blk)
{
printf("%llu: data block of inode %llu\n",
(unsigned long long)FFS_FSBTODB(sblock, blk),
(unsigned long long)curinum);
findblk_numtofind--;
if (findblk_numtofind == 0)
return 1;
return 0;
}
static int
find_blks32(uint32_t *buf, int size, uint32_t *wantedblk)
{
int blk;
for(blk = 0; blk < size; blk++) {
if (buf[blk] == 0)
continue;
if (compare_blk32(wantedblk, iswap32(buf[blk]))) {
if (founddatablk(iswap32(buf[blk])))
return 1;
}
}
return 0;
}
static int
find_indirblks32(uint32_t blk, int ind_level, uint32_t *wantedblk)
{
#define MAXNINDIR (MAXBSIZE / sizeof(uint32_t))
uint32_t idblk[MAXNINDIR];
size_t i;
bread(fsreadfd, (char *)idblk, FFS_FSBTODB(sblock, blk),
(int)sblock->fs_bsize);
if (ind_level <= 0) {
if (find_blks32(idblk,
sblock->fs_bsize / sizeof(uint32_t), wantedblk))
return 1;
} else {
ind_level--;
for (i = 0; i < sblock->fs_bsize / sizeof(uint32_t); i++) {
if (compare_blk32(wantedblk, iswap32(idblk[i]))) {
if (founddatablk(iswap32(idblk[i])))
return 1;
}
if(idblk[i] != 0)
if (find_indirblks32(iswap32(idblk[i]),
ind_level, wantedblk))
return 1;
}
}
#undef MAXNINDIR
return 0;
}
static int
find_blks64(uint64_t *buf, int size, uint64_t *wantedblk)
{
int blk;
for(blk = 0; blk < size; blk++) {
if (buf[blk] == 0)
continue;
if (compare_blk64(wantedblk, iswap64(buf[blk]))) {
if (founddatablk(iswap64(buf[blk])))
return 1;
}
}
return 0;
}
static int
find_indirblks64(uint64_t blk, int ind_level, uint64_t *wantedblk)
{
#define MAXNINDIR (MAXBSIZE / sizeof(uint64_t))
uint64_t idblk[MAXNINDIR];
size_t i;
bread(fsreadfd, (char *)idblk, FFS_FSBTODB(sblock, blk),
(int)sblock->fs_bsize);
if (ind_level <= 0) {
if (find_blks64(idblk,
sblock->fs_bsize / sizeof(uint64_t), wantedblk))
return 1;
} else {
ind_level--;
for (i = 0; i < sblock->fs_bsize / sizeof(uint64_t); i++) {
if (compare_blk64(wantedblk, iswap64(idblk[i]))) {
if (founddatablk(iswap64(idblk[i])))
return 1;
}
if (idblk[i] != 0)
if (find_indirblks64(iswap64(idblk[i]),
ind_level, wantedblk))
return 1;
}
}
#undef MAXNINDIR
return 0;
}
static int
writefileblk(struct wrinfo *wrp, uint64_t blk)
{
char buf[MAXBSIZE];
long long size;
size = wrp->size - wrp->written_size;
if (size > sblock->fs_bsize)
size = sblock->fs_bsize;
if (size > (long long)sizeof buf) {
warnx("sblock->fs_bsize > MAX_BSIZE");
return -1;
}
if (bread(fsreadfd, buf, FFS_FSBTODB(sblock, blk), size) != 0)
return -1;
if (write(wrp->fd, buf, size) != size)
return -1;
wrp->written_size += size;
return 0;
}
#define CHARS_PER_LINES 70
static void
print_blks32(int32_t *buf, int size, uint64_t *blknum, struct wrinfo *wrp)
{
int chars;
char prbuf[CHARS_PER_LINES+1];
int blk;
chars = 0;
for (blk = 0; blk < size; blk++, (*blknum)++) {
if (buf[blk] == 0)
continue;
if (wrp && writefileblk(wrp, iswap32(buf[blk])) != 0) {
warn("unable to write block %d", iswap32(buf[blk]));
return;
}
snprintf(prbuf, CHARS_PER_LINES, "%d ", iswap32(buf[blk]));
if ((chars + strlen(prbuf)) > CHARS_PER_LINES) {
printf("\n");
chars = 0;
}
if (chars == 0)
printf("%" PRIu64 ": ", *blknum);
printf("%s", prbuf);
chars += strlen(prbuf);
}
printf("\n");
}
static void
print_blks64(int64_t *buf, int size, uint64_t *blknum, struct wrinfo *wrp)
{
int chars;
char prbuf[CHARS_PER_LINES+1];
int blk;
chars = 0;
for (blk = 0; blk < size; blk++, (*blknum)++) {
if (buf[blk] == 0)
continue;
if (wrp && writefileblk(wrp, iswap64(buf[blk])) != 0) {
warn("unable to write block %lld",
(long long)iswap64(buf[blk]));
return;
}
snprintf(prbuf, CHARS_PER_LINES, "%lld ",
(long long)iswap64(buf[blk]));
if ((chars + strlen(prbuf)) > CHARS_PER_LINES) {
printf("\n");
chars = 0;
}
if (chars == 0)
printf("%" PRIu64 ": ", *blknum);
printf("%s", prbuf);
chars += strlen(prbuf);
}
printf("\n");
}
#undef CHARS_PER_LINES
static void
print_indirblks32(uint32_t blk, int ind_level, uint64_t *blknum, struct wrinfo *wrp)
{
#define MAXNINDIR (MAXBSIZE / sizeof(int32_t))
const int ptrperblk_shift = sblock->fs_bshift - 2;
const int ptrperblk = 1 << ptrperblk_shift;
int32_t idblk[MAXNINDIR];
int i;
if (blk == 0) {
*blknum += (uint64_t)ptrperblk << (ptrperblk_shift * ind_level);
return;
}
printf("Indirect block %lld (level %d):\n", (long long)blk,
ind_level+1);
bread(fsreadfd, (char *)idblk, FFS_FSBTODB(sblock, blk),
(int)sblock->fs_bsize);
if (ind_level <= 0) {
print_blks32(idblk, ptrperblk, blknum, wrp);
} else {
ind_level--;
for (i = 0; i < ptrperblk; i++)
print_indirblks32(iswap32(idblk[i]), ind_level, blknum,
wrp);
}
#undef MAXNINDIR
}
static void
print_indirblks64(uint64_t blk, int ind_level, uint64_t *blknum, struct wrinfo *wrp)
{
#define MAXNINDIR (MAXBSIZE / sizeof(int64_t))
const int ptrperblk_shift = sblock->fs_bshift - 3;
const int ptrperblk = 1 << ptrperblk_shift;
int64_t idblk[MAXNINDIR];
int i;
if (blk == 0) {
*blknum += (uint64_t)ptrperblk << (ptrperblk_shift * ind_level);
return;
}
printf("Indirect block %lld (level %d):\n", (long long)blk,
ind_level+1);
bread(fsreadfd, (char *)idblk, FFS_FSBTODB(sblock, blk),
(int)sblock->fs_bsize);
if (ind_level <= 0) {
print_blks64(idblk, ptrperblk, blknum, wrp);
} else {
ind_level--;
for (i = 0; i < ptrperblk; i++)
print_indirblks64(iswap64(idblk[i]), ind_level, blknum,
wrp);
}
#undef MAXNINDIR
}
static int
dolookup(char *name)
{
struct inodesc idesc;
if (!checkactivedir())
return 0;
idesc.id_number = curinum;
idesc.id_func = findino;
idesc.id_name = name;
idesc.id_type = DATA;
idesc.id_fix = IGNORE;
if (ckinode(curinode, &idesc) & FOUND) {
curinum = idesc.id_parent;
curinode = ginode(curinum);
printactive();
return 1;
} else {
warnx("name `%s' not found in current inode directory", name);
return 0;
}
}
CMDFUNC(focusname)
{
char *p, *val;
if (!checkactive())
return 1;
ocurrent = curinum;
if (argv[1][0] == '/') {
curinum = UFS_ROOTINO;
curinode = ginode(UFS_ROOTINO);
} else {
if (!checkactivedir())
return 1;
}
for (p = argv[1]; p != NULL;) {
while ((val = strsep(&p, "/")) != NULL && *val == '\0');
if (val) {
printf("component `%s': ", val);
fflush(stdout);
if (!dolookup(val)) {
curinode = ginode(curinum);
return (1);
}
}
}
return 0;
}
CMDFUNC(ln)
{
ino_t inum;
int rval;
char *cp;
GETINUM(1, inum);
if (!checkactivedir())
return 1;
rval = makeentry(curinum, inum, argv[2]);
if (rval)
printf("Ino %llu entered as `%s'\n", (unsigned long long)inum,
argv[2]);
else
printf("could not enter name? weird.\n");
curinode = ginode(curinum);
return rval;
}
CMDFUNC(rm)
{
int rval;
if (!checkactivedir())
return 1;
rval = changeino(curinum, argv[1], 0);
if (rval & ALTERED) {
printf("Name `%s' removed\n", argv[1]);
return 0;
} else {
printf("could not remove name? weird.\n");
return 1;
}
}
static long slotcount, desired;
static int
chinumfunc(struct inodesc *idesc)
{
struct direct *dirp = idesc->id_dirp;
if (slotcount++ == desired) {
dirp->d_ino = iswap32(idesc->id_parent);
return STOP | ALTERED | FOUND;
}
return KEEPON;
}
CMDFUNC(chinum)
{
char *cp;
ino_t inum;
struct inodesc idesc;
slotcount = 0;
if (!checkactivedir())
return 1;
GETINUM(2, inum);
desired = strtol(argv[1], &cp, 0);
if (cp == argv[1] || *cp != '\0' || desired < 0) {
printf("invalid slot number `%s'\n", argv[1]);
return 1;
}
idesc.id_number = curinum;
idesc.id_func = chinumfunc;
idesc.id_fix = IGNORE;
idesc.id_type = DATA;
idesc.id_parent = inum; /* XXX convenient hiding place */
if (ckinode(curinode, &idesc) & FOUND)
return 0;
else {
warnx("no %sth slot in current directory", argv[1]);
return 1;
}
}
static int
chnamefunc(struct inodesc *idesc)
{
struct direct *dirp = idesc->id_dirp;
struct direct testdir;
if (slotcount++ == desired) {
/* will name fit? */
testdir.d_namlen = strlen(idesc->id_name);
if (UFS_DIRSIZ(UFS_NEWDIRFMT, &testdir, 0) <= iswap16(dirp->d_reclen)) {
dirp->d_namlen = testdir.d_namlen;
strlcpy(dirp->d_name, idesc->id_name,
sizeof(dirp->d_name));
return STOP | ALTERED | FOUND;
} else
return STOP | FOUND; /* won't fit, so give up */
}
return KEEPON;
}
CMDFUNC(chname)
{
int rval;
char *cp;
struct inodesc idesc;
slotcount = 0;
if (!checkactivedir())
return 1;
desired = strtoul(argv[1], &cp, 0);
if (cp == argv[1] || *cp != '\0') {
printf("invalid slot number `%s'\n", argv[1]);
return 1;
}
idesc.id_number = curinum;
idesc.id_func = chnamefunc;
idesc.id_fix = IGNORE;
idesc.id_type = DATA;
idesc.id_name = argv[2];
rval = ckinode(curinode, &idesc);
if ((rval & (FOUND | ALTERED)) == (FOUND | ALTERED))
return 0;
else
if (rval & FOUND) {
warnx("new name `%s' does not fit in slot %s",
argv[2], argv[1]);
return 1;
} else {
warnx("no %sth slot in current directory", argv[1]);
return 1;
}
}
static struct typemap {
const char *typename;
int typebits;
} typenamemap[] = {
{ "file", IFREG },
{ "dir", IFDIR },
{ "socket", IFSOCK },
{ "fifo", IFIFO },
};
CMDFUNC(newtype)
{
int type;
uint16_t mode;
struct typemap *tp;
if (!checkactive())
return 1;
mode = iswap16(DIP(curinode, mode));
type = mode & IFMT;
for (tp = typenamemap;
tp < &typenamemap[sizeof(typenamemap) / sizeof(*typenamemap)];
tp++) {
if (!strcmp(argv[1], tp->typename)) {
printf("setting type to %s\n", tp->typename);
type = tp->typebits;
break;
}
}
if (tp == &typenamemap[sizeof(typenamemap) / sizeof(*typenamemap)]) {
warnx("type `%s' not known", argv[1]);
warnx("try one of `file', `dir', `socket', `fifo'");
return 1;
}
DIP_SET(curinode, mode, iswap16((mode & ~IFMT) | type));
inodirty();
printactive();
return 0;
}
CMDFUNC(chmode)
{
long modebits;
char *cp;
uint16_t mode;
if (!checkactive())
return 1;
modebits = strtol(argv[1], &cp, 8);
if (cp == argv[1] || *cp != '\0') {
warnx("bad modebits `%s'", argv[1]);
return 1;
}
mode = iswap16(DIP(curinode, mode));
DIP_SET(curinode, mode, iswap16((mode & ~07777) | modebits));
inodirty();
printactive();
return 0;
}
CMDFUNC(chlen)
{
long len;
char *cp;
if (!checkactive())
return 1;
len = strtol(argv[1], &cp, 0);
if (cp == argv[1] || *cp != '\0' || len < 0) {
warnx("bad length '%s'", argv[1]);
return 1;
}
DIP_SET(curinode, size, iswap64(len));
inodirty();
printactive();
return 0;
}
CMDFUNC(chaflags)
{
u_long flags;
char *cp;
if (!checkactive())
return 1;
flags = strtoul(argv[1], &cp, 0);
if (cp == argv[1] || *cp != '\0') {
warnx("bad flags `%s'", argv[1]);
return 1;
}
if (flags > UINT_MAX) {
warnx("flags set beyond 32-bit range of field (0x%lx)",
flags);
return (1);
}
DIP_SET(curinode, flags, iswap32(flags));
inodirty();
printactive();
return 0;
}
CMDFUNC(chgen)
{
long gen;
char *cp;
if (!checkactive())
return 1;
gen = strtol(argv[1], &cp, 0);
if (cp == argv[1] || *cp != '\0') {
warnx("bad gen `%s'", argv[1]);
return 1;
}
if (gen > INT_MAX || gen < INT_MIN) {
warnx("gen set beyond 32-bit range of field (0x%lx)", gen);
return (1);
}
DIP_SET(curinode, gen, iswap32(gen));
inodirty();
printactive();
return 0;
}
CMDFUNC(linkcount)
{
int lcnt;
char *cp;
if (!checkactive())
return 1;
lcnt = strtol(argv[1], &cp, 0);
if (cp == argv[1] || *cp != '\0') {
warnx("bad link count `%s'", argv[1]);
return 1;
}
if (lcnt > USHRT_MAX || lcnt < 0) {
warnx("max link count is %d", USHRT_MAX);
return 1;
}
DIP_SET(curinode, nlink, iswap16(lcnt));
inodirty();
printactive();
return 0;
}
CMDFUNC(chowner)
{
unsigned long uid;
char *cp;
struct passwd *pwd;
if (!checkactive())
return 1;
uid = strtoul(argv[1], &cp, 0);
if (cp == argv[1] || *cp != '\0') {
/* try looking up name */
if ((pwd = getpwnam(argv[1])) != 0) {
uid = pwd->pw_uid;
} else {
warnx("bad uid `%s'", argv[1]);
return 1;
}
}
if (!is_ufs2 && sblock->fs_old_inodefmt < FS_44INODEFMT)
curinode->dp1.di_ouid = iswap32(uid);
else
DIP_SET(curinode, uid, iswap32(uid));
inodirty();
printactive();
return 0;
}
CMDFUNC(chgroup)
{
unsigned long gid;
char *cp;
struct group *grp;
if (!checkactive())
return 1;
gid = strtoul(argv[1], &cp, 0);
if (cp == argv[1] || *cp != '\0') {
if ((grp = getgrnam(argv[1])) != 0) {
gid = grp->gr_gid;
} else {
warnx("bad gid `%s'", argv[1]);
return 1;
}
}
if (!is_ufs2 && sblock->fs_old_inodefmt < FS_44INODEFMT)
curinode->dp1.di_ogid = iswap32(gid);
else
DIP_SET(curinode, gid, iswap32(gid));
inodirty();
printactive();
return 0;
}
static int
dotime(char *name, int32_t *rsec, int32_t *rnsec)
{
char *p, *val;
struct tm t;
int32_t sec;
int32_t nsec;
p = strchr(name, '.');
if (p) {
*p = '\0';
nsec = strtoul(++p, &val, 0);
if (val == p || *val != '\0' || nsec >= 1000000000 || nsec < 0) {
warnx("invalid nanoseconds");
goto badformat;
}
} else
nsec = 0;
if (strlen(name) != 14) {
badformat:
warnx("date format: YYYYMMDDHHMMSS[.nsec]");
return 1;
}
for (p = name; *p; p++)
if (*p < '0' || *p > '9')
goto badformat;
p = name;
#define VAL() ((*p++) - '0')
t.tm_year = VAL();
t.tm_year = VAL() + t.tm_year * 10;
t.tm_year = VAL() + t.tm_year * 10;
t.tm_year = VAL() + t.tm_year * 10 - 1900;
t.tm_mon = VAL();
t.tm_mon = VAL() + t.tm_mon * 10 - 1;
t.tm_mday = VAL();
t.tm_mday = VAL() + t.tm_mday * 10;
t.tm_hour = VAL();
t.tm_hour = VAL() + t.tm_hour * 10;
t.tm_min = VAL();
t.tm_min = VAL() + t.tm_min * 10;
t.tm_sec = VAL();
t.tm_sec = VAL() + t.tm_sec * 10;
t.tm_isdst = -1;
sec = mktime(&t);
if (sec == -1) {
warnx("date/time out of range");
return 1;
}
*rsec = iswap32(sec);
*rnsec = iswap32(nsec);
return 0;
}
CMDFUNC(chmtime)
{
int32_t rsec, nsec;
if (dotime(argv[1], &rsec, &nsec))
return 1;
DIP_SET(curinode, mtime, rsec);
DIP_SET(curinode, mtimensec, nsec);
inodirty();
printactive();
return 0;
}
CMDFUNC(chatime)
{
int32_t rsec, nsec;
if (dotime(argv[1], &rsec, &nsec))
return 1;
DIP_SET(curinode, atime, rsec);
DIP_SET(curinode, atimensec, nsec);
inodirty();
printactive();
return 0;
}
CMDFUNC(chctime)
{
int32_t rsec, nsec;
if (dotime(argv[1], &rsec, &nsec))
return 1;
DIP_SET(curinode, ctime, rsec);
DIP_SET(curinode, ctimensec, nsec);
inodirty();
printactive();
return 0;
}
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