Adding upstream version 3.6.upstream/3.6upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 281 insertions, 0 deletions

diff --git a/libparted/fs/ufs/ufs.c b/libparted/fs/ufs/ufs.c
new file mode 100644
index 0000000..d2bf421
--- /dev/null
+++ b/libparted/fs/ufs/ufs.c
@@ -0,0 +1,281 @@
+/*
+    libparted - a library for manipulating disk partitions
+    Copyright (C) 2001, 2007, 2009-2014, 2019-2023 Free Software Foundation,
+    Inc.
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+    Contributor: Ben Collins <bcollins@debian.org>
+*/
+
+#include <config.h>
+
+#include <parted/parted.h>
+#include <parted/endian.h>
+#include <parted/debug.h>
+
+#if ENABLE_NLS
+#  include <libintl.h>
+#  define _(String) dgettext (PACKAGE, String)
+#else
+#  define _(String) (String)
+#endif /* ENABLE_NLS */
+
+#include <unistd.h>
+#include <string.h>
+
+/* taken from ufs_fs.h in Linux */
+#define	UFS_MAXNAMLEN 255
+#define UFS_MAXMNTLEN 512
+#define UFS_MAXCSBUFS 31
+#define UFS_LINK_MAX 32000
+
+#define UFS_MAGIC	0x00011954
+#define UFS_MAGIC_LFN	0x00095014
+#define UFS_MAGIC_FEA	0x00195612
+#define UFS_MAGIC_4GB	0x05231994
+
+struct __attribute__ ((packed)) ufs_csum {
+	uint32_t	cs_ndir;	/* number of directories */
+	uint32_t	cs_nbfree;	/* number of free blocks */
+	uint32_t	cs_nifree;	/* number of free inodes */
+	uint32_t	cs_nffree;	/* number of free frags */
+};
+
+struct __attribute__ ((packed)) ufs_super_block {
+	uint32_t	fs_link;	/* UNUSED */
+	uint32_t	fs_rlink;	/* UNUSED */
+	uint32_t	fs_sblkno;	/* addr of super-block in filesys */
+	uint32_t	fs_cblkno;	/* offset of cyl-block in filesys */
+	uint32_t	fs_iblkno;	/* offset of inode-blocks in filesys */
+	uint32_t	fs_dblkno;	/* offset of first data after cg */
+	uint32_t	fs_cgoffset;	/* cylinder group offset in cylinder */
+	uint32_t	fs_cgmask;	/* used to calc mod fs_ntrak */
+	uint32_t	fs_time;	/* last time written -- time_t */
+	uint32_t	fs_size;	/* number of blocks in fs */
+	uint32_t	fs_dsize;	/* number of data blocks in fs */
+	uint32_t	fs_ncg;		/* number of cylinder groups */
+	uint32_t	fs_bsize;	/* size of basic blocks in fs */
+	uint32_t	fs_fsize;	/* size of frag blocks in fs */
+	uint32_t	fs_frag;	/* number of frags in a block in fs */
+/* these are configuration parameters */
+	uint32_t	fs_minfree;	/* minimum percentage of free blocks */
+	uint32_t	fs_rotdelay;	/* num of ms for optimal next block */
+	uint32_t	fs_rps;		/* disk revolutions per second */
+/* these fields can be computed from the others */
+	uint32_t	fs_bmask;	/* ``blkoff'' calc of blk offsets */
+	uint32_t	fs_fmask;	/* ``fragoff'' calc of frag offsets */
+	uint32_t	fs_bshift;	/* ``lblkno'' calc of logical blkno */
+	uint32_t	fs_fshift;	/* ``numfrags'' calc number of frags */
+/* these are configuration parameters */
+	uint32_t	fs_maxcontig;	/* max number of contiguous blks */
+	uint32_t	fs_maxbpg;	/* max number of blks per cyl group */
+/* these fields can be computed from the others */
+	uint32_t	fs_fragshift;	/* block to frag shift */
+	uint32_t	fs_fsbtodb;	/* fsbtodb and dbtofsb shift constant */
+	uint32_t	fs_sbsize;	/* actual size of super block */
+	uint32_t	fs_csmask;	/* csum block offset */
+	uint32_t	fs_csshift;	/* csum block number */
+	uint32_t	fs_nindir;	/* value of NINDIR */
+	uint32_t	fs_inopb;	/* value of INOPB */
+	uint32_t	fs_nspf;	/* value of NSPF */
+/* yet another configuration parameter */
+	uint32_t	fs_optim;	/* optimization preference, see below */
+/* these fields are derived from the hardware */
+	union {
+		struct {
+			uint32_t	fs_npsect;	/* # sectors/track including spares */
+		} fs_sun;
+		struct {
+			int32_t		fs_state;	/* file system state timestamp */
+		} fs_sunx86;
+	} fs_u1;
+	uint32_t	fs_interleave;	/* hardware sector interleave */
+	uint32_t	fs_trackskew;	/* sector 0 skew, per track */
+/* a unique id for this file system (currently unused and unmaintained) */
+/* In 4.3 Tahoe this space is used by fs_headswitch and fs_trkseek */
+/* Neither of those fields is used in the Tahoe code right now but */
+/* there could be problems if they are.                            */
+	uint32_t	fs_id[2];	/* file system id */
+/* sizes determined by number of cylinder groups and their sizes */
+	uint32_t	fs_csaddr;	/* blk addr of cyl grp summary area */
+	uint32_t	fs_cssize;	/* size of cyl grp summary area */
+	uint32_t	fs_cgsize;	/* cylinder group size */
+/* these fields are derived from the hardware */
+	uint32_t	fs_ntrak;	/* tracks per cylinder */
+	uint32_t	fs_nsect;	/* sectors per track */
+	uint32_t	fs_spc;		/* sectors per cylinder */
+/* this comes from the disk driver partitioning */
+	uint32_t	fs_ncyl;	/* cylinders in file system */
+/* these fields can be computed from the others */
+	uint32_t	fs_cpg;		/* cylinders per group */
+	uint32_t	fs_ipg;		/* inodes per group */
+	uint32_t	fs_fpg;		/* blocks per group * fs_frag */
+/* this data must be re-computed after crashes */
+	struct ufs_csum fs_cstotal;	/* cylinder summary information */
+/* these fields are cleared at mount time */
+	int8_t		fs_fmod;	/* super block modified flag */
+	int8_t		fs_clean;	/* file system is clean flag */
+	int8_t		fs_ronly;	/* mounted read-only flag */
+	int8_t		fs_flags;	/* currently unused flag */
+	int8_t		fs_fsmnt[UFS_MAXMNTLEN];	/* name mounted on */
+/* these fields retain the current block allocation info */
+	uint32_t	fs_cgrotor;	/* last cg searched */
+	uint32_t	fs_csp[UFS_MAXCSBUFS];	/* list of fs_cs info buffers */
+	uint32_t	fs_maxcluster;
+	uint32_t	fs_cpc;		/* cyl per cycle in postbl */
+	uint16_t	fs_opostbl[16][8];	/* old rotation block list head */
+	union {
+		struct {
+			int32_t		fs_sparecon[53];/* reserved for future constants */
+			int32_t		fs_reclaim;
+			int32_t		fs_sparecon2[1];
+			int32_t		fs_state;	/* file system state timestamp */
+			uint32_t	fs_qbmask[2];	/* ~usb_bmask */
+			uint32_t	fs_qfmask[2];	/* ~usb_fmask */
+		} fs_sun;
+		struct {
+			int32_t		fs_sparecon[53];/* reserved for future constants */
+			int32_t		fs_reclaim;
+			int32_t		fs_sparecon2[1];
+			uint32_t	fs_npsect;	/* # sectors/track including spares */
+			uint32_t	fs_qbmask[2];	/* ~usb_bmask */
+			uint32_t	fs_qfmask[2];	/* ~usb_fmask */
+		} fs_sunx86;
+		struct {
+			int32_t		fs_sparecon[50];/* reserved for future constants */
+			int32_t		fs_contigsumsize;/* size of cluster summary array */
+			int32_t		fs_maxsymlinklen;/* max length of an internal symlink */
+			int32_t		fs_inodefmt;	/* format of on-disk inodes */
+			uint32_t	fs_maxfilesize[2];	/* max representable file size */
+			uint32_t	fs_qbmask[2];	/* ~usb_bmask */
+			uint32_t	fs_qfmask[2];	/* ~usb_fmask */
+			int32_t		fs_state;	/* file system state timestamp */
+		} fs_44;
+	} fs_u2;
+	int32_t	fs_postblformat;	/* format of positional layout tables */
+	int32_t	fs_nrpos;		/* number of rotational positions */
+	int32_t	fs_postbloff;		/* (__s16) rotation block list head */
+	int32_t	fs_rotbloff;		/* (uint8_t) blocks for each rotation */
+	int32_t	fs_magic;		/* magic number */
+	uint8_t	fs_space[4];		/* list of blocks for each rotation */
+};
+
+static PedGeometry*
+ufs_probe_sun (PedGeometry* geom)
+{
+	const int	sectors = ((3 * 512) + geom->dev->sector_size - 1) /
+				   geom->dev->sector_size;
+	uint8_t*	buf = alloca (sectors * geom->dev->sector_size);
+	struct ufs_super_block *sb;
+
+	if (geom->length < 5)
+		return 0;
+	if (!ped_geometry_read (geom, buf, 16 * 512 / geom->dev->sector_size, sectors))
+		return 0;
+
+	sb = (struct ufs_super_block *)buf;
+
+	if (PED_BE32_TO_CPU(sb->fs_magic) == UFS_MAGIC) {
+		PedSector block_size = PED_BE32_TO_CPU(sb->fs_bsize) / geom->dev->sector_size;
+		PedSector block_count = PED_BE32_TO_CPU(sb->fs_size);
+		return ped_geometry_new (geom->dev, geom->start,
+					 block_size * block_count);
+	}
+	if (PED_LE32_TO_CPU(sb->fs_magic) == UFS_MAGIC) {
+		PedSector block_size = PED_LE32_TO_CPU(sb->fs_bsize) / geom->dev->sector_size;
+		PedSector block_count = PED_LE32_TO_CPU(sb->fs_size);
+		return ped_geometry_new (geom->dev, geom->start,
+					 block_size * block_count);
+	}
+	return NULL;
+}
+
+static PedGeometry*
+ufs_probe_hp (PedGeometry* geom)
+{
+	struct ufs_super_block *sb;
+	PedSector block_size;
+	PedSector block_count;
+
+	if (geom->length < 5)
+		return 0;
+	const int	sectors = ((3 * 512) + geom->dev->sector_size - 1) /
+				   geom->dev->sector_size;
+	uint8_t*	buf = alloca (sectors * geom->dev->sector_size);
+
+	if (!ped_geometry_read (geom, buf, 16 * 512 / geom->dev->sector_size, sectors))
+		return 0;
+
+	sb = (struct ufs_super_block *)buf;
+
+	/* Try sane bytesex */
+	switch (PED_BE32_TO_CPU(sb->fs_magic)) {
+		case UFS_MAGIC_LFN:
+		case UFS_MAGIC_FEA:
+		case UFS_MAGIC_4GB:
+			block_size = PED_BE32_TO_CPU(sb->fs_bsize) / geom->dev->sector_size;
+			block_count = PED_BE32_TO_CPU(sb->fs_size);
+			return ped_geometry_new (geom->dev, geom->start,
+						 block_size * block_count);
+	}
+
+	/* Try perverted bytesex */
+	switch (PED_LE32_TO_CPU(sb->fs_magic)) {
+		case UFS_MAGIC_LFN:
+		case UFS_MAGIC_FEA:
+		case UFS_MAGIC_4GB:
+			block_size = PED_LE32_TO_CPU(sb->fs_bsize) / geom->dev->sector_size;
+			block_count = PED_LE32_TO_CPU(sb->fs_size);
+			return ped_geometry_new (geom->dev, geom->start,
+						 block_size * block_count);
+	}
+	return NULL;
+}
+
+static PedFileSystemOps ufs_ops_sun = {
+	probe:		ufs_probe_sun,
+};
+
+static PedFileSystemOps ufs_ops_hp = {
+	probe:		ufs_probe_hp,
+};
+
+static PedFileSystemType ufs_type_sun = {
+	next:	NULL,
+	ops:	&ufs_ops_sun,
+	name:	"sun-ufs",
+};
+
+static PedFileSystemType ufs_type_hp = {
+	next:   NULL,
+	ops:    &ufs_ops_hp,
+	name:   "hp-ufs",
+};
+
+void
+ped_file_system_ufs_init ()
+{
+	PED_ASSERT (sizeof (struct ufs_super_block) == 1380);
+
+	ped_file_system_type_register (&ufs_type_sun);
+	ped_file_system_type_register (&ufs_type_hp);
+}
+
+void
+ped_file_system_ufs_done ()
+{
+	ped_file_system_type_unregister (&ufs_type_hp);
+	ped_file_system_type_unregister (&ufs_type_sun);
+}