CONFIG_BINFMT_MISC allows it to add support for new executable formats
to the kernel from user space, the kernel will then detect for example a
java binary and call the java execution program automatically. I am not
aware that this feature is used in OpenWrt and this could be used to
exploit something. Deactivate it for all targets for now.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Some targets deactivated CONFIG_SYN_COOKIES, for unknown reasons, use
the default setting from the generic configuration which activates
CONFIG_SYN_COOKIES.
This should prevent SYN flooding.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
We currently generate a kernel that boots from the harddrive
in the DIR-685. That's not how we usually do things, so
let's augment it to boot from flash and mount the rootfs
using squashfs and JFFS2 like everyone else.
Partition splitting only work when the partitions are
inside of a "partitions" node which is why we have a patch
like this (submitted upstream).
Another patch drops the rootfs arguments and renames the
firmware partition while adding the compatible "wrg"
to it so the WRGG parser will kick in.
Factory image was tested by bravely reflashing the DIR-685
from stock firmware using the web UI and the serial console
boot loader.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
CONFIG_COMPAT_BRK disables the heap randomization which is only needed
for very old and ancient user space applications, I am not aware that we
run any of these, just deactivate this option for these targets to allow
heap randomization.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This activates the CONFIG_USB_SUPPORT option in the in the gemini kernel
again which will provide the core USB support and makes it possible to
compile the rest of the USB parts into modules. Without this change USB
will not be available in the gemini target and some modules fail to
compile because the feature list indicates USB support.
Fixes: 10ec966f7b ("gemini: Break out USB to packages")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This creates a new kernel package for the fotg210 host
controller and uses that with the gemini to shrink the
kernel. The SQ201 needs the USB2 PCI package as well.
The build system required me to make kernel_oldconfig
beofore it would build without errors so some minor
unrelated Kconfig entries are changed.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
These options are handled by generic configuration
Targets that need these options should select KERNEL_DEVMEM
and/or KERNEL_DEVKMEM options on OpenWRT's config
Signed-off-by: Luis Araneda <luaraneda@gmail.com>
THIN_ARCHIVES option is enabled by default in the kernel configuration
and no one target config disables it. So enable it by default and remove
this symbol from target specific configs to keep them light.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
New FUTEX_PI configuration symbol enabled if FUTEX and RT_MUTEX symbols
are enabled. Both of these symbols are enabled by default in the
generic config, so enable FUTEX_PI by default too to keep platform
specific configs minimal.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
OVERLAY_FS config symbol selects EXPORTFS since 4.12 kernel, we have
OVERLAY_FS enabled by default, so enable EXPORTFS in the generic config
of 4.14 and remove this option from platform specific configs.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
DRM_LIB_RANDOM config symbol selected only by DRM_DEBUG_MM_SELFTEST
which is disable by default, so disable DRM_LIB_RANDOM by default too.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
These options do not used by any supported arch, so disable them by
default to make arch configs a bit more clean.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Only one arch (x86_64) enables this option. So disable
ARCH_WANTS_THP_SWAP by default and remove referencies to it from all
configs (except x86_64) to make them clean.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Since the D-Link devices boot from hard disk we need to
add the following changes to Gemini:
- Supply a bootarg in the device tree so we can boot from
the right partition (/dev/sda4 on DNS-313)
- Disable forced command line in config so the kernel picks
up the right bootargs from the device tree
- Enable EXT4 in the config as this is used for rootfs else
we get nowhere, we cannot load this as a module because,
well, it is supposed to be loaded from the root partition
(chicken and egg problem).
- Enable jbd2 and mbcache (needed by ext4)
Also clean out the premature attempts to dynamically
modify the command line in the Image makefile: we should
pass this with the device tree bootargs instead, it works
much better.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Roman Yeryomin <roman@advem.lv>
Disable video and input drivers - they are needed only for one
board and can be enabled via modules if/when UI will be available.
Use LED drivers from packages.
Cleanup other things unnecessarily overriding defaults.
Signed-off-by: Roman Yeryomin <roman@advem.lv>
This adds the patches to get fairly complete Gemini support
using kernel v4.14. It is mainly a backport of patches from
kernel v4.16 with omissions of things like graphics that require
substantial changes and will be better handled once we move
to the v4.16 kernel proper.
On top of this are some WIP patches for USB support.
Tested on Raidsonic NAS4220B and D-link DNS-313.
ChangeLog v4->v5:
- Fix ethernet single gmac usecase
- Fix USB reset (patch from Hans)
- Fix Raidsonic ethernet skew delay
- Fix kernel config (bridge, squashfs, jffs2, usb)
- Disable second usb port on Raidsonic board until fotg210_hcd is fixed
ChangeLog v3->v4:
- Make sure to use tabs rather than spaces in base-files.
- Use the dns313 image tool from the firmware-utils.
- Break out the addition of the v4.14 patches and the removal
of the v4.4 patches to separate (big) patches.
ChangeLog v2->v3:
- Update the kernel config as indicated by Hauke Martens:
- Regenerate again after rebasing using kernel_oldconfig
dropping a few optimization settings that are now generic
- Drop CFG80211 stuff (module)
- Drop CIFS stuff (module)
- Drop MAC80211 (module)
- Drop wireless drivers (module)
- Enabled OverlayFS
- Added proper DNS-313 boot image generation with the special
file header tool.
- Disable CMA in the kernel
- Enable LZMA compression of the kernel
- Consequently name the nas4220b images nas4220b
- Update preinit MAC detection script to handle also DNS-313
- Add board.d/03_hdparm to set the disk to spin down after
1 minute by default, if we have the hdparm tool installed
ChangeLog v1->v2:
- Processed config through kernel_oldconfig
- Processed patches through make target/linux/{clean,refresh} V=99
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Roman Yeryomin <roman@advem.lv>
Hauke Mehrtens