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The documentation of libmtd_open says, if it returns NULL and errno is
zero, MTD is not present. However, the current version always returns
a libmtd_t object. The function internally checks, if it can access the
MTD sysfs files and, if not, sets a flag to use the procfs fallback.
This patch adds an additional check to libmtd_open, to test if the
MTD procfs file can be read and fails with errno cleared if it does
not exist.
Furhtermore, mtd_get_info is documented to fail with errno set to ENODEV
if MTD is not present. First of all, this was broken in the original
version. It was implemented to specification for the sysfs code path,
but if MTD is not present, that won't be executed, because of the flag
set by libmtd_open. This makes the check not only redundant, but masks
an actual error (the sysfs paths suddenly not being readable anymore).
The legacy path that was used if the sysfs files are not avaible fails
with ENOENT if it cannot read the procfs file. With the above changes
in addition, we don't have a libmtd_t object if neither sysfs nor
procfs is readable, so this error status no longer makes sense.
This patch removes the documentation on the ENODEV errno, and
makes sure that mtd_get_info always returns with apropriate errno
on failure.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Add a missing space after PROGRAM_NAME and fix a typo.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Historically, the mtd-utils and ubi-utils were seperate packages. The
ubi-utils were at some point merged into the mtd-utils. They first
appeared in the release tar-ball in version 1.1.0 in their own
sub-hirarchy with their own buildsystem, readme, documentation, etc.
A lot of the duplicated stuff got centralized/removed over time.
This patch further cleans up the directory hirarchy duplication by
moving common libraries from the ubi-utils/ into the central lib/
and include/ directories in the top directory of the mtd-utils package.
This includes:
- libuib.a & libubigen.a used by the ubi utilities
- libscan.a currently only used by ubiformat
- libiniparser.a used by ubinize
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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This patch moves the remaining 3 functions from ubiutils-common.{c,h}
into libmtd common.{c,h}.
The functions are only generic utility functions that other mtd-utils
programs may also find usefull and every program that uses libubi links
against libmtd anyway so there is no real reason for keeping around a
seperate ubiutils-common with only generic helper functions.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The function ubiutils_print_text was previously used by ubinize to
pretty-print parts of the help text. Since the help text has been
moved to a man page, the function is no longer used/needed.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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This patch removes the lengthy help text from the ubinize utility
that attempted to describte the file format and every minor detail,
and reformats it into a more readable man page.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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In order to use test files, allow sysfs root
to be set during compile time
Signed-off-by: Daniel Walter <dwalter@sigma-star.at>
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This patch is largely based on Richards original RFC.
The major differences to the RFC patch are:
- Add missing sumtools & mtdpart targets
- Fix name of mkfs.jffs2 target
- Add missing subdir-objects option for non-recursive make
- Move all automake options to configure.ac
- Add manpages to install target
- Make XATTR & LZO support configurable
- Install binaries to sbin directory like in the old build system
- Install flash_erase wrapper script
- Add files missing from distribution target
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Signed-off-by: Richard Weinberger <richard@nod.at>
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ubinize should not fail silenty, this can be very annoying when using
it from other tools that rely on the exit code for determining the
success of their operation.
Signed-off-by: Enrico Jorns <ejo@pengutronix.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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ioctl(MEMGETREGIONINFO) has one input parameter (regionindex) and three
output parameters (info about the erase region). There are two problems
in mtdinfo/libmtd here:
1. mtdinfo.c doesn't initialize its region_info_user struct, instead
passing uninitialized data to mtd_regioninfo()
2. mtd_regioninfo() fails to utilize the 'regidx' parameter to fill out
the regionindex parameter properly, so the garbage from mtdinfo.c is
propagated to the ioctl()
This means that mtdinfo will continuously probe the same (possibly
out-of-range) erase region, instead of looping over the valid regions.
Let's fix this in the mtd_regioninfo() helper, and at the same time,
let's zero out the mtdinfo.c buffer, as an additional precaution to keep
from using uninitialized data.
Initial error report from Yang, when running "mtdinfo /dev/mtd0" on a
Cavium 6100 board:
root@CN61XX:~# mtdinfo /dev/mtd0
mtd0
Name: phys_mapped_flash
Type: nor
Eraseblock size: 65536 bytes, 64.0 KiB
Amount of eraseblocks: 128 (8388608 bytes, 8.0 MiB)
Minimum input/output unit size: 1 byte
Sub-page size: 1 byte
Additional erase regions: 0
Character device major/minor: 90:0
Bad blocks are allowed: false
Device is writable: true
libmtd: error!: MEMGETREGIONINFO ioctl failed for erase region 0
error 22 (Invalid argument)
Eraseblock region 0: info is unavailable
libmtd: error!: MEMGETREGIONINFO ioctl failed for erase region 1
error 22 (Invalid argument)
Eraseblock region 1: info is unavailable
Reported-by: Yang Wei <Wei.Yang@windriver.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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David Binderman <dcb314@hotmail.com> reports that the following piece of looks
wrong:
if (!args.subpage_size != mtd->min_io_size)
normsg("may be sub-page size is incorrect?");
I totally agree with him and I believe that we actually meant to have no
negation in fron to f 'args.subpage_size', so instead, the code should look
like this:
if (args.subpage_size != mtd->min_io_size)
normsg("may be sub-page size is incorrect?");
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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UBI's raw flash scan actually scans for UBI data, not UBIFS data (there
*are* UBI users that are not UBIFS!), so correct the warning message.
This also matches the comment in libscan.h.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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Amended by Artem.
Signed-off-by: Daniel van Gerpen <daniel@vangerpen.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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With the addition of block device access to UBI volumes, we now
add a simple userspace tool to access the new ioctls.
Usage of this tool is as simple as it gets:
$ ubiblock --create /dev/ubi0_0
will create a new block device /dev/ubiblock0_0, and
$ ubiblock --remove /dev/ubi0_0
will remove the device.
Artem: slightly changed the header comment.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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In the current code, the MTD_NANDFLASH stands for both the SLC and MLC.
In the kernel, the MTD_NANDFLASH only stands for the SLC now,
so in order to keep the logic unchanged, we should also check the MLC
NAND by MTD_MLCNANDFLASH.
Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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This already has a --size option for controlling how many bytes to read
from the input. Add a --skip option to control the offset into the input
too. This way people don't have to do `dd | ubiupdatevol`.
While we're here, I've fixed the types used with args.size and the read
loop so that they can hold the right sizes (like setting a 32bit+ size).
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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We've got a few tools that prompt the user for "yes/no" questions.
Add a common helper to simplify the various implementations.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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Drop duplicate "and the", and tweak grammar slightly.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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A few error paths were closing the device, although it was not opened
yet.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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Add -Q and --image-seq, remove double -v
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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Both logic (only print when not quiet) and the indentation suggest that
the braces around the block have been forgotten.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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The offset (which is 64bits when mtd-utils are not compile with
WITHOUT_LARGEFILE) is calculated like that:
offset = nb * size;
But nb and size are int, so on 32bits platforms, there's a possible
overflow.
So, it should be replace with:
offset = (off_t)nb * size;
If WITHOUT_LARGEFILE is defined, there still be an overflow, but it's
what we want, right ?
Cheney Chen tested an ubiformat on a NAND (5.9 GiB mtd part).
Reported-by: Cheney Chen <cheneychencl2012@gmail.com>
Tested-by: Cheney Chen <cheneychencl2012@gmail.com>
Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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If the kernel doesn't know the max_beb_per1024 parameter in the attach
ioctl, but the call still succeeded ubi_attach and ubi_attach_mtd will
return 1 instead of 0.
In this case, the ubiattach command will detach the device and fail with
an error message.
Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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The ioctl UBI_IOCATT has been extended with max_beb_per1024 parameter.
This parameter is used for adjusting the "maximum expected number of
bad blocks per 1024 blocks" for each mtd device.
The number of physical erase blocks (PEB) that UBI will reserve for bad
block handling is now:
whole_flash_chipset__PEB_number * max_beb_per1024 / 1024
This means that for a 4096 PEB NAND device with 3 MTD partitions:
mtd0: 512 PEB
mtd1: 1536 PEB
mtd2: 2048 PEB
the commands:
ubiattach -m 0 -d 0 -b 20 /dev/ubi_ctrl
ubiattach -m 1 -d 1 -b 20 /dev/ubi_ctrl
ubiattach -m 2 -d 2 -b 20 /dev/ubi_ctrl
will attach mtdx to UBIx and reserve:
80 PEB for bad block handling on UBI0
80 PEB for bad block handling on UBI1
80 PEB for bad block handling on UBI2
=> for the whole device, 240 PEB will be reserved for bad block
handling.
This may seems a waste of space, but as far as the bad blocks can appear
every where on a flash device, in the worst case scenario they can
all appear in one MTD partition.
So the maximum number of expected erase blocks given by the NAND
manufacturer should be reserve on each MTD partition.
Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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The 'ubi_attach_mtd()' is not used and it is redundant now. 'ubi_attach()'
function may be used instead.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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The req->mtd_num value is now updated with the MTD device number found
by mtd_node_to_num.
Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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Also remove the eraseblock type support, because kernel commit
a65a0eb6d198e058687a9214683bd1c418f20d39 set the dtype
parameter as obsolete.
Also adjust to some renames:
* 'UBI_PROP_DIRECT_WRITE' -> 'UBI_VOL_PROP_DIRECT_WRITE'
* 'struct ubi_set_prop_req' -> 'struct ubi_set_vol_prop_req'.
* 'UBI_IOCSETPROP' -> 'UBI_IOCSETVOLPROP'
Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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When we have assigned non-consecutive device numbers to our MTD devices,
then we run `mtdinfo --all', we get errors once mtdinfo tries to process
the devices in the "hole". For instance, suppose that at boot time, we have
one MTD (/dev/mtd0) then perform a sequence like the following:
# modprobe mtdram
# modprobe nandsim
# rmmod mtdram
Then at this point, we have should have devices 0 and 2 without 1. Then:
# mtdinfo --all
...
mtdinfo: error!: mtd1 does not correspond to any existing MTD device
We add a check to first see if device is present, then continue to the next
ID if it doesn't exist.
Reported-by: Brian Foster <brian.foster@maxim-ic.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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When we have assigned non-consecutive device numbers to our UBI devices,
then we run `ubinfo --all', we get errors once ubinfo tries to process the
devices in the "hole". For instance, suppose there are two UBI devices,
/dev/ubi0 and /dev/ubi10; then, ubinfo will fail trying to open /dev/ubi1
with:
ubinfo: error!: cannot get information about UBI device 1
error 2 (No such file or directory)
This patch adds a check to first see if device is present, then continue
to the next ID if it doesn't exist.
Reported-by: Brian Foster <brian.foster@maxim-ic.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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We will use this function in ubinfo.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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If the user specifies neither a MTD argument nor the `-a' flag, we print
a cryptic message; i.e.,
# mtdinfo
libmtd: error!: cannot get information about "(null)"
error 14 (Bad address)
mtdinfo: error!: cannot get information about MTD device "(null)"
error 14 (Bad address)
This is a regression; previously, mtdinfo would give some short info
about number of devices, etc. when used without arguments. To fix this,
we revert commit d53c03b0989f8354a7e4dbb947a150fc7fe3f6d1 and call
print_general_info() when no device is specified.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@intel.com>
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This issue was reported and analyzed by
Anton Olofsson <anol.martinsson@gmail.com>:
when ubiformat encounters a write error while flashing the UBI image (which may
come from a file of from stdout), it correctly marks the faulty eraseblock as
bad and skips it. However, it also incorrectly drops the data buffer which was
supposed to be written, and reads next block of data.
This patch fixes this issue - in case of a write error, we preserve the current
data and write it to the next eraseblock, instead of dropping it.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
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To support the MEMWRITE ioctl, we will need a different sort of libmtd
interface for writing to flash. We will expand mtd_write to include more
functionality; for now, we just change the function definition and
description as we begin to add the actual functionality.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
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Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@intel.com>
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The help message for mtdinfo is unnecessarily disjointed. It is split
into three strings which reuse the PROGRAM_NAME string inefficiently and
don't have a consistent style.
This fixup should provide a cleaner look with aligned columns and
easier-to-read source code.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
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Line up columns better so that everything is more readable.
Remove "Example 1" since `mtdinfo' does not print information when not
given any arguments.
Remove "...UBI layout information" from description of Example 4, since
Example 4 (now 3) doesn't include the `-u' flag.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
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We weren't very consistent in how we listed our options in the mtdinfo
help string (listing short options, long options, or both). Plus, not all
options are inter-operable, so we should distinguish this somewhat.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
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Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
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This "fixes" a regression found in:
commit 266061ebd5d72391f0a0e831b018e8fc7fea68a1
mtdinfo: add regioninfo/eraseblock map display
On certain flash (NOR flash that have eraseblock region info),
`mtdinfo -a' tries to open the MTD node file, for use with the ioctl
MEMGETREGIONINFO; however, we didn't supply a device node path to
`mtdinfo -a', so it's using NULL, resulting in errors like:
mtdinfo: error!: couldn't open MTD dev: (null)
error 14 (Bad address)
For now, we can just skip dumping region_info with the `-a' flag. If we
find a better way to do this (e.g., export via sysfs, find device nodes
via automatic routines, etc.), then we can kill the workaround and this
FIXME should be removed.
The regression was first reported at:
http://lists.infradead.org/pipermail/linux-mtd/2011-July/037232.html
The result of recent changes is that we cannot get region_info for devices
via the `--all' option. We add a note in the help message warning that
mtdinfo may find more info when given a device patch, e.g., /dev/mtdX.
Reported-by: Brian Foster <brian.foster@maxim-ic.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
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We have removed the -m option, but did not remove args.mtdn which represents
the -m parameters. Kill args.mtdn as well.
Tweaked by Brian Norris.
Signed-off-by: Artem Bityutskiy <dedekind1@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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According to feature-removal-schedule, we shouldn't use `-m', since
it relies on a specific device-naming pattern.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <dedekind1@gmail.com>
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More utilities now use the common VERSION system.
For utils that printed a very simple message, we use the new
common_print_version() "function."
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <dedekind1@gmail.com>
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Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <dedekind1@gmail.com>
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The ubi-utils/src/ subdir is tossed as it just complicates things for no
real gain. The dictionary.h header is relocated to the ubi-utils/include/
since other headers in there need it.
The top level clean is replaced with a `find -delete` on objects, so it
might prune more than necessary, but many projects now do this sort of
thing and no one complained there.
A "mkdep" helper generates the actual rule, and the variables are used
with "foreach" to expand these automatically.
The tests subdir is updated only to reflect the ubi-utils source move.
Otherwise, it is left untouched as making that non-recursive isn't really
worth the effort.
While we're gutting things, also through in kbuild style output while
building to make things more legible.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <dedekind1@gmail.com>
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Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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