ab270c6fbc
When handling non-aligned remaining data (not padded to 16 byte [AES_BLOCK_SIZE]), a full 16 byte block is read from the input buffer and written to the output buffer after en-/decryption. While code already assumes that an input buffer could have less than 16 byte remaining, as it can be seen by the code zeroing the remaining bytes till AES_BLOCK_SIZE, the full AES_BLOCK_SIZE is read. An output buffer size of a multiple of AES_BLOCK_SIZE is expected but never validated. To get rid of the read/write behind buffer, use a temporary buffer when dealing with not padded data and only write as much bytes to the output as we read. Do not memcpy directly to the register, to make used of the endian swap macro and to trigger the crypto start operator via the ID0R to trigger the register. Since we might need an endian swap for the output in future, use a temporary buffer for the output as well. The issue could not be observed so far, since all caller of ifx_deu_aes will ignore the padded (remaining) data. Considering that the minimum blocksize for the algorithm is set to AES_BLOCK_SIZE, the behaviour could be called expected. Signed-off-by: Mathias Kresin <dev@kresin.me> [fix commit title prefix] Signed-off-by: Daniel Kestrel <kestrel1974@t-online.de>
OpenWrt Project is a Linux operating system targeting embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application. For developers, OpenWrt is the framework to build an application without having to build a complete firmware around it; for users this means the ability for full customization, to use the device in ways never envisioned.
Sunshine!
Development
To build your own firmware you need a GNU/Linux, BSD or MacOSX system (case sensitive filesystem required). Cygwin is unsupported because of the lack of a case sensitive file system.
Requirements
You need the following tools to compile OpenWrt, the package names vary between distributions. A complete list with distribution specific packages is found in the Build System Setup documentation.
binutils bzip2 diff find flex gawk gcc-6+ getopt grep install libc-dev libz-dev
make4.1+ perl python3.6+ rsync subversion unzip which
Quickstart
-
Run
./scripts/feeds update -ato obtain all the latest package definitions defined in feeds.conf / feeds.conf.default -
Run
./scripts/feeds install -ato install symlinks for all obtained packages into package/feeds/ -
Run
make menuconfigto select your preferred configuration for the toolchain, target system & firmware packages. -
Run
maketo build your firmware. This will download all sources, build the cross-compile toolchain and then cross-compile the GNU/Linux kernel & all chosen applications for your target system.
Related Repositories
The main repository uses multiple sub-repositories to manage packages of
different categories. All packages are installed via the OpenWrt package
manager called opkg. If you're looking to develop the web interface or port
packages to OpenWrt, please find the fitting repository below.
-
LuCI Web Interface: Modern and modular interface to control the device via a web browser.
-
OpenWrt Packages: Community repository of ported packages.
-
OpenWrt Routing: Packages specifically focused on (mesh) routing.
-
OpenWrt Video: Packages specifically focused on display servers and clients (Xorg and Wayland).
Support Information
For a list of supported devices see the OpenWrt Hardware Database
Documentation
Support Community
- Forum: For usage, projects, discussions and hardware advise.
- Support Chat: Channel
#openwrton oftc.net.
Developer Community
- Bug Reports: Report bugs in OpenWrt
- Dev Mailing List: Send patches
- Dev Chat: Channel
#openwrt-develon oftc.net.
License
OpenWrt is licensed under GPL-2.0