At present this function does not accept a size for the FIT. This means
that it must be read from the FIT itself, introducing potential security
risk. Update the function to include a size parameter, which can be
invalid, in which case fit_check_format() calculates it.
For now no callers pass the size, but this can be updated later.
Also adjust the return value to an error code so that all the different
types of problems can be distinguished by the user.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Bruce Monroe <bruce.monroe@intel.com>
Reported-by: Arie Haenel <arie.haenel@intel.com>
Reported-by: Julien Lenoir <julien.lenoir@intel.com>
The external data is located after the mmapped FDT pointed to by
'old_fdt', not in the newly created FDT we are importing into at 'fdt'.
Signed-off-by: Patrick Oppenlander <patrick.oppenlander@gmail.com>
Vagrant Cascadian reported that mx6cuboxi target no longer builds
reproducibility on Debian.
One example of builds mismatches:
00096680: 696e 6700 736f 756e 642d 6461 6900 6465 ing.sound-dai.de
-00096690: 7465 6374 2d67 7069 6f73 0000 tect-gpios..
+00096690: 7465 6374 2d67 7069 6f73 0061 tect-gpios.a
This problem happens because all the buffers in fit_image.c are
allocated via malloc(), which does not zero out the allocated buffer.
Using calloc() fixes this unpredictable behaviour as it guarantees
that the allocated buffer are zero initialized.
Reported-by: Vagrant Cascadian <vagrant@reproducible-builds.org>
Suggested-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Tested-by: Vagrant Cascadian <vagrant@reproducible-builds.org>
Normally the FIT timestamp is created the first time mkimage is run on a
FIT, when converting the source .its to the binary .fit file. This
corresponds to using the -f flag. But if the original input to mkimage is
a binary file (already compiled) then the timestamp is assumed to have
been set previously.
Add a -t flag to allow setting the timestamp in this case.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Normally the FIT timestamp is created the first time mkimage is run on a
FIT, when converting the source .its to the binary .fit file. This
corresponds to using the -f flag. But if the original input to mkimage is
a binary file (already compiled) then the timestamp is assumed to have
been set previously.
Add a -t flag to allow setting the timestamp in this case.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This option currently does not add any sort of hash to the images in the
FIT.
Add a hash node requesting a crc32 checksum, which at least provides some
protection.
The crc32 value is easily ignored (e.g. in SPL) if not needed. and takes
up only about 48 bytes per image, including overhead.
Suggested-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Denk <wd@denx.de>
This has been reported to break booting of U-Boot from SPL on a number
of platforms due to a lack of alignment of the external data. The
issues this commit is addressing will need to be resolved another way.
Re-introduce a data leak in the padding for now.
This reverts commit 20a154f95b.
Reported-by: Alex Kiernan <alex.kiernan@gmail.com>
Reported-by: Michael Walle <michael@walle.cc>
Tested-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
There is no reason to tail-pad fitImage with external data to 4-bytes,
while fitImage without external data does not have any such padding and
is often unaligned. DT spec also does not mandate any such padding.
Moreover, the tail-pad fills the last few bytes with uninitialized data,
which could lead to a potential information leak.
$ echo -n xy > /tmp/data ; \
./tools/mkimage -E -f auto -d /tmp/data /tmp/fitImage ; \
hexdump -vC /tmp/fitImage | tail -n 3
before:
00000260 61 2d 6f 66 66 73 65 74 00 64 61 74 61 2d 73 69 |a-offset.data-si|
00000270 7a 65 00 00 78 79 64 64 |ze..xydd|
^^ ^^ ^^
after:
00000260 61 2d 6f 66 66 73 65 74 00 64 61 74 61 2d 73 69 |a-offset.data-si|
00000270 7a 65 00 78 79 |ze.xy|
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Cc: Tom Rini <trini@konsulko.com>
If given ptr to free() is NULL, no operation is performed.
Hence we can just free buf directly in fit_extract_data().
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Without calling munmap(), the follow-up call to open() the same file
with a flag O_TRUNC seems not to cause any issue on Linux, but it fails
on Windows with error like below:
Can't open kernel_fdt.itb.tmp: Permission denied
Fix this by unmapping the memory before closing fd in fit_import_data().
Signed-off-by: Lihua Zhao <lihua.zhao@windriver.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
The image is usually stored in block device like emmc, SD card, make the
offset of image data aligned to block(512 byte) can avoid data copy
during boot process.
eg. SPL boot from FIT image with external data:
- SPL read the first block of FIT image, and then parse the header;
- SPL read image data separately;
- The first image offset is the base_offset which is the header size;
- The second image offset is just after the first image;
- If the offset of imge does not aligned, SPL will do memcpy;
The header size is a ramdon number, which is very possible not aligned, so
add '-B size'to specify the align size in hex for better performance.
example usage:
./tools/mkimage -E -f u-boot.its -B 0x200 u-boot.itb
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp>
Reviewed-by: Tom Rini <trini@konsulko.com>
Use the ALIGN() for size align so that the code is more readable.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
commit 7298e42250 ("mkimage: fit: add support to encrypt image with
aes") added a new copyfile() function as part of the FIT image creation
flow. This function as currently written creates the final image with a
mode of 0700 (before umask), differing from the old behavior of 0666.
Since there doesn't seem to be any reason to make the image executable
or non-group, non-other readable, change the mask to 0666 to preserve
the old behavior.
Fixes: 7298e42250 ("mkimage: fit: add support to encrypt image with aes")
Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
This commit add the support of encrypting image with aes
in mkimage. To enable the ciphering, a node cipher with
a reference to a key and IV (Initialization Vector) must
be added to the its file. Then mkimage add the encrypted
image to the FIT and add the key and IV to the u-boot
device tree.
Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
fit_check_params() wants at least two of dflag, fflag, and lflag set.
Simplify the logical constraint checking this.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This is very similar to fit_image_get_data but has the benefit of working
on FIT images with external data unlike fit_image_get_data. This is
useful for extracting sub-images from type of FIT image as this would
previously just silently fail. Add an error message also so if this
still fails it is easier to find out why.
Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
When running the following command
mkimage -f auto -A arm -O linux -T kernel -C none -a 0x8000 -e 0x8000 \
-d zImage -b zynq-microzed.dtb -i initramfs.cpio image.ub
the type of fdt subimage is the same as of the main kernel image and
the architecture of the initramfs image is not set. Such an image is
refused by U-Boot when booting. This commits sets the mentioned
attributes, allowing to use the "-f auto" mode in this case instead of
writing full .its file.
Following is the diff of mkimage output without and with this commit:
FIT description: Kernel Image image with one or more FDT blobs
Created: Thu Sep 12 23:23:16 2019
Image 0 (kernel-1)
Description:
Created: Thu Sep 12 23:23:16 2019
Type: Kernel Image
Compression: uncompressed
Data Size: 4192744 Bytes = 4094.48 KiB = 4.00 MiB
Architecture: ARM
OS: Linux
Load Address: 0x00008000
Entry Point: 0x00008000
Image 1 (fdt-1)
Description: zynq-microzed
Created: Thu Sep 12 23:23:16 2019
- Type: Kernel Image
+ Type: Flat Device Tree
Compression: uncompressed
Data Size: 9398 Bytes = 9.18 KiB = 0.01 MiB
Architecture: ARM
- OS: Unknown OS
- Load Address: unavailable
- Entry Point: unavailable
Image 2 (ramdisk-1)
Description: unavailable
Created: Thu Sep 12 23:23:16 2019
Type: RAMDisk Image
Compression: Unknown Compression
Data Size: 760672 Bytes = 742.84 KiB = 0.73 MiB
- Architecture: Unknown Architecture
+ Architecture: ARM
OS: Linux
Load Address: unavailable
Entry Point: unavailable
Default Configuration: 'conf-1'
Configuration 0 (conf-1)
Description: zynq-microzed
Kernel: kernel-1
Init Ramdisk: ramdisk-1
FDT: fdt-1
Loadables: kernel-1
Signed-off-by: Michal Sojka <michal.sojka@cvut.cz>
Add an option to open files in read-only mode in mmap_fdt so
that fit_check_sign can be used to inspect files on read-only
filesystems.
For example, this is useful when a key is shipped in a read-only
rootfs or squashfs.
Signed-off-by: Luca Boccassi <luca.boccassi@microsoft.com>
When running mkimage with "-f auto", the loadable property
needs to be set in order to allow SPL FIT support to boot.
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Tested-by: Fabio Estevam <festevam@gmail.com>
There is no reason not to use macros which are already defined.
It is also much easier for grepping.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
When generating timestamps in signatures, use imagetool_get_source_date()
so we can be overridden by SOURCE_DATE_EPOCH to generate reproducible
images.
Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
Reviewed-by: Simon Glass <sjg@chromum.org>
So we can use imagetool_get_source_date() from callers who do not have
the image tool params struct, just pass in the command name for the error
message.
Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
Reviewed-by: Simon Glass <sjg@chromum.org>
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <trini@konsulko.com>
The system call used by mkimage to run dtc redirects stdout to a
temporary file. This can cause problems on Windows (with a MinGW
cross-compiled version). Using the "-o" dtc parameter avoids
this problem.
Signed-off-by: Stefan Theil <stefan.theil@mixed-mode.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
The DT spec demands a unit-address in a node name to match the "reg"
property in that node. Newer dtc versions will throw warnings if this is
not the case.
Correct the generated unit names when U-Boot's mkimage creates a FIT
image.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
fit_handle_file function does not quote input and output files while preparing
command to run DTC to convert .its to .itb. This results in a failure if input
or output files contain spaces in their names. Quote input and output files in
DTC command to avoid this failure.
Signed-off-by: Mirza, Taimoor <Taimoor_Mirza@mentor.com>
The recent changes to these files did not completely fix the previous
issues, or introduced different (minor) issues. In cmd/gpt.c we need to
dereference str_disk_guid to be sure that malloc worked. In
cmd/nvedit.c we need to be careful that we can also fit in that leading
space when adding to the string. And in tools/fit_image.c we need to
re-work the error handling slightly in fit_import_data() so that we only
call munmap() once. We have two error paths here, one where we have an
fd to close and one where we do not. Adjust labels to match this.
Reported-by: Coverity (CID: 167366, 167367, 167370)
Signed-off-by: Tom Rini <trini@konsulko.com>
Coverity has found some problems with the return paths in parts of this
code. We have a case where we were going to the wrong part of the
unwind (open() failed so we cannot close the fd), a case where we were
only free()ing our buf on the error path and finally a case where we did
not munmap in the failure path.
Reported-by: Coverity (CID: 138492, 138495, 143064)
Signed-off-by: Tom Rini <trini@konsulko.com>
Add support for signing with the pkcs11 engine. This allows FIT images
to be signed with keys securely stored on a smartcard, hardware security
module, etc without exposing the keys.
Support for other engines can be added in the future by modifying
rsa_engine_get_pub_key() and rsa_engine_get_priv_key() to construct
correct key_id strings.
Signed-off-by: George McCollister <george.mccollister@gmail.com>
Adds -i option that allows specifying a ramdisk file to be added to the
FIT image when we are using the automatic FIT mode (no ITS file).
This makes adding Depthcharge support to LAVA much more convenient, as
no additional configuration files need to be kept around in the machine
that dispatches jobs to the boards.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Matt Hart <matthew.hart@linaro.org>
Cc: Neil Williams <codehelp@debian.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
The error code may provide useful information for debugging. Add it to the
error string.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Teddy Reed <teddy.reed@gmail.com>
The fit_write_images() function incorrectly uses the long name for the
architecture. This cannot be parsed with the FIT is read. Fix this by using
the short name instead.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
When building a FIT with external data (-E), U-Boot proper may require
absolute positioning for executing the external firmware. To acheive this
use the (-p) switch, which will replace the amended 'data-offset' with
'data-position' indicating the absolute position of external data.
It is considered an error if the requested absolute position overlaps with the
initial data required for the compact FIT.
Signed-off-by: Teddy Reed <teddy.reed@gmail.com>
The error path for fit_import_data() is incorrect if the second open() call
fails.
Reported-by: Coverity (CID: 138489)
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
The file that is opened is not closed in all cases. Fix it.
Reported-by: Coverity (CID: 138490)
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Make sure that both the error path and normal return free the buffer and
close the file.
Reported-by: Coverity (CID: 138491)
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
The 'buf' variable is not freed. Fix it.
Reported-by: Coverity (CID: 138492)
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
The 'fdt' variable is not unmapped in all error cases. Fix this.
Reported-by: Coverity (CID: 138493)
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
The space allocated to fdt is not freed on error. Fix it.
Reported-by: Coverity (CID: 138494)
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
The code flows through to the end of the function, so we don't need another
close() before this. Remove it.
Reported-by: Coverity (CID: 138503)
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
The code flows through to the end of the function, so we don't need another
close() before this. Remove it.
Reported-by: Coverity (CID: 138504)
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Since we now support data outside the FIT image, bring it into the FIT image
first before we do any processing. This avoids adding new functionality to
the core FIT code for now.
Signed-off-by: Simon Glass <sjg@chromium.org>
One limitation of FIT is that all the data is 'inline' within it, using a
'data' property in each image node. This means that to find out what is in
the FIT it is necessary to scan the entire file. Once loaded it can be
scanned and then the images can be copied to the correct place in memory.
In SPL it can take a significant amount of time to copy images around in
memory. Also loading data that does not end up being used is wasteful. It
would be useful if the FIT were small, acting as a directory, with the
actual data stored elsewhere.
This allows SPL to load the entire FIT, without the images, then load the
images it wants later.
Add a -E option to mkimage to request that it output an 'external' FIT.
Signed-off-by: Simon Glass <sjg@chromium.org>
To make the auto-FIT feature useful we need to be able to provide a list of
device tree files on the command line for mkimage to add into the FIT. Add
support for this feature.
So far there is no support for hashing or verified boot using this method.
For those cases, a .its file must still be provided.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present, when generating a FIT, mkimage requires a .its file containing
the structure of the FIT and referring to the images to be included.
Creating the .its file is a separate step that makes it harder to use FIT.
This is not required for creating legacy images.
Often the FIT is pretty standard, consisting of an OS image, some device
tree files and a single configuration. We can handle this case automatically
and avoid needing a .its file at all.
To start with, support automatically generate the FIT using a new '-f auto'
option. Initially this only supports adding a single image (e.g. a linux
kernel) and a single configuration.
Signed-off-by: Simon Glass <sjg@chromium.org>
