Ejemplo n.º 1
0
static int
inode_f(
	int		argc,
	char		**argv)
{
	xfs_ino_t	ino;
	char		*p;

	if (argc > 1) {
		ino = strtoull(argv[1], &p, 0);
		if (*p != '\0') {
			dbprintf(_("bad value for inode number %s\n"), argv[1]);
			return 0;
		}
		set_cur_inode(ino);
	} else if (iocur_top->ino == NULLFSINO)
		dbprintf(_("no current inode\n"));
	else
		dbprintf(_("current inode number is %lld\n"), iocur_top->ino);
	return 0;
}
Ejemplo n.º 2
0
Archivo: bmap.c Proyecto: brkt/fuse-xfs
void
bmap(
	xfs_dfiloff_t		offset,
	xfs_dfilblks_t		len,
	int			whichfork,
	int			*nexp,
	bmap_ext_t		*bep)
{
	struct xfs_btree_block	*block;
	xfs_fsblock_t		bno;
	xfs_dfiloff_t		curoffset;
	xfs_dinode_t		*dip;
	xfs_dfiloff_t		eoffset;
	xfs_bmbt_rec_64_t	*ep;
	xfs_dinode_fmt_t	fmt;
	int			fsize;
	xfs_bmbt_key_t		*kp;
	int			n;
	int			nex;
	xfs_fsblock_t		nextbno;
	int			nextents;
	xfs_bmbt_ptr_t		*pp;
	xfs_bmdr_block_t	*rblock;
	typnm_t			typ;
	xfs_bmbt_rec_64_t	*xp;

	push_cur();
	set_cur_inode(iocur_top->ino);
	nex = *nexp;
	*nexp = 0;
	ASSERT(nex > 0);
	dip = iocur_top->data;
	n = 0;
	eoffset = offset + len - 1;
	curoffset = offset;
	fmt = (xfs_dinode_fmt_t)XFS_DFORK_FORMAT(dip, whichfork);
	typ = whichfork == XFS_DATA_FORK ? TYP_BMAPBTD : TYP_BMAPBTA;
	ASSERT(typtab[typ].typnm == typ);
	ASSERT(fmt == XFS_DINODE_FMT_LOCAL || fmt == XFS_DINODE_FMT_EXTENTS ||
		fmt == XFS_DINODE_FMT_BTREE);
	if (fmt == XFS_DINODE_FMT_EXTENTS) {
		nextents = XFS_DFORK_NEXTENTS(dip, whichfork);
		xp = (xfs_bmbt_rec_64_t *)XFS_DFORK_PTR(dip, whichfork);
		for (ep = xp; ep < &xp[nextents] && n < nex; ep++) {
			if (!bmap_one_extent(ep, &curoffset, eoffset, &n, bep))
				break;
		}
	} else if (fmt == XFS_DINODE_FMT_BTREE) {
		push_cur();
		bno = NULLFSBLOCK;
		rblock = (xfs_bmdr_block_t *)XFS_DFORK_PTR(dip, whichfork);
		fsize = XFS_DFORK_SIZE(dip, mp, whichfork);
		pp = XFS_BMDR_PTR_ADDR(rblock, 1, xfs_bmdr_maxrecs(mp, fsize, 0));
		kp = XFS_BMDR_KEY_ADDR(rblock, 1);
		bno = select_child(curoffset, kp, pp, 
					be16_to_cpu(rblock->bb_numrecs));
		for (;;) {
			set_cur(&typtab[typ], XFS_FSB_TO_DADDR(mp, bno),
				blkbb, DB_RING_IGN, NULL);
			block = (struct xfs_btree_block *)iocur_top->data;
			if (be16_to_cpu(block->bb_level) == 0)
				break;
			pp = XFS_BMDR_PTR_ADDR(block, 1,
				xfs_bmbt_maxrecs(mp, mp->m_sb.sb_blocksize, 0));
			kp = XFS_BMDR_KEY_ADDR(block, 1);
			bno = select_child(curoffset, kp, pp,
					be16_to_cpu(block->bb_numrecs));
		}
		for (;;) {
			nextbno = be64_to_cpu(block->bb_u.l.bb_rightsib);
			nextents = be16_to_cpu(block->bb_numrecs);
			xp = (xfs_bmbt_rec_64_t *)
				XFS_BMBT_REC_ADDR(mp, block, 1);
			for (ep = xp; ep < &xp[nextents] && n < nex; ep++) {
				if (!bmap_one_extent(ep, &curoffset, eoffset,
						&n, bep)) {
					nextbno = NULLFSBLOCK;
					break;
				}
			}
			bno = nextbno;
			if (bno == NULLFSBLOCK)
				break;
			set_cur(&typtab[typ], XFS_FSB_TO_DADDR(mp, bno),
				blkbb, DB_RING_IGN, NULL);
			block = (struct xfs_btree_block *)iocur_top->data;
		}
		pop_cur();
	}
	pop_cur();
	*nexp = n;
}
Ejemplo n.º 3
0
static int
dquot_f(
	int		argc,
	char		**argv)
{
	bmap_ext_t	bm;
	int		c;
	int		dogrp;
	int		doprj;
	xfs_dqid_t	id;
	xfs_ino_t	ino;
	int		nex;
	char		*p;
	int		perblock;
	xfs_fileoff_t	qbno;
	int		qoff;
	char		*s;

	dogrp = doprj = optind = 0;
	while ((c = getopt(argc, argv, "gpu")) != EOF) {
		switch (c) {
		case 'g':
			dogrp = 1;
			doprj = 0;
			break;
		case 'p':
			doprj = 1;
			dogrp = 0;
			break;
		case 'u':
			dogrp = doprj = 0;
			break;
		default:
			dbprintf(_("bad option for dquot command\n"));
			return 0;
		}
	}
	s = doprj ? _("project") : dogrp ? _("group") : _("user");
	if (optind != argc - 1) {
		dbprintf(_("dquot command requires one %s id argument\n"), s);
		return 0;
	}
	ino = mp->m_sb.sb_uquotino;
	if (doprj)
		ino = mp->m_sb.sb_pquotino;
	else if (dogrp)
		ino = mp->m_sb.sb_gquotino;

	if (ino == 0 || ino == NULLFSINO) {
		dbprintf(_("no %s quota inode present\n"), s);
		return 0;
	}
	id = (xfs_dqid_t)strtol(argv[optind], &p, 0);
	if (*p != '\0') {
		dbprintf(_("bad %s id for dquot %s\n"), s, argv[optind]);
		return 0;
	}
	perblock = (int)(mp->m_sb.sb_blocksize / sizeof(xfs_dqblk_t));
	qbno = (xfs_fileoff_t)id / perblock;
	qoff = (int)(id % perblock);
	push_cur();
	set_cur_inode(ino);
	nex = 1;
	bmap(qbno, 1, XFS_DATA_FORK, &nex, &bm);
	pop_cur();
	if (nex == 0) {
		dbprintf(_("no %s quota data for id %d\n"), s, id);
		return 0;
	}
	set_cur(&typtab[TYP_DQBLK], XFS_FSB_TO_DADDR(mp, bm.startblock), blkbb,
		DB_RING_IGN, NULL);
	off_cur(qoff * (int)sizeof(xfs_dqblk_t), sizeof(xfs_dqblk_t));
	ring_add();
	return 0;
}
Ejemplo n.º 4
0
Archivo: bmap.c Proyecto: brkt/fuse-xfs
static int
bmap_f(
	int		argc,
	char		**argv)
{
	int		afork = 0;
	bmap_ext_t	be;
	int		c;
	xfs_dfiloff_t	co, cosave;
	int		dfork = 0;
	xfs_dinode_t	*dip;
	xfs_dfiloff_t	eo;
	xfs_dfilblks_t	len;
	int		nex;
	char		*p;
	int		whichfork;

	if (iocur_top->ino == NULLFSINO) {
		dbprintf(_("no current inode\n"));
		return 0;
	}
	optind = 0;
	if (argc) while ((c = getopt(argc, argv, "ad")) != EOF) {
		switch (c) {
		case 'a':
			afork = 1;
			break;
		case 'd':
			dfork = 1;
			break;
		default:
			dbprintf(_("bad option for bmap command\n"));
			return 0;
		}
	}
	if (afork + dfork == 0) {
		push_cur();
		set_cur_inode(iocur_top->ino);
		dip = iocur_top->data;
		if (be32_to_cpu(dip->di_core.di_nextents))
			dfork = 1;
		if (be16_to_cpu(dip->di_core.di_anextents))
			afork = 1;
		pop_cur();
	}
	if (optind < argc) {
		co = (xfs_dfiloff_t)strtoull(argv[optind], &p, 0);
		if (*p != '\0') {
			dbprintf(_("bad block number for bmap %s\n"),
				argv[optind]);
			return 0;
		}
		optind++;
		if (optind < argc) {
			len = (xfs_dfilblks_t)strtoull(argv[optind], &p, 0);
			if (*p != '\0') {
				dbprintf(_("bad len for bmap %s\n"), argv[optind]);
				return 0;
			}
			eo = co + len - 1;
		} else
			eo = co;
	} else {
		co = 0;
		eo = -1;
	}
	cosave = co;
	for (whichfork = XFS_DATA_FORK;
	     whichfork <= XFS_ATTR_FORK;
	     whichfork++) {
		if (whichfork == XFS_DATA_FORK && !dfork)
			continue;
		if (whichfork == XFS_ATTR_FORK && !afork)
			continue;
		for (;;) {
			nex = 1;
			bmap(co, eo - co + 1, whichfork, &nex, &be);
			if (nex == 0)
				break;
			dbprintf(_("%s offset %lld startblock %llu (%u/%u) count "
				 "%llu flag %u\n"),
				whichfork == XFS_DATA_FORK ? _("data") : _("attr"),
				be.startoff, be.startblock,
				XFS_FSB_TO_AGNO(mp, be.startblock),
				XFS_FSB_TO_AGBNO(mp, be.startblock),
				be.blockcount, be.flag);
			co = be.startoff + be.blockcount;
		}
		co = cosave;
	}
	return 0;
}