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openwrt/toolchain/musl/Config.in

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musl: improve crypt() size hack Instead of silently downgrading any non-MD5 crypt() request to DES, cleanly fail with return NULL and errno = ENOSYS. This allows callers to notice the missing support instead of the unwanted silent fallback to DES. Also add a menuconfig toolchain option to optionally disable the crypt size hack completely. This can be probably made dependant on SMALL_FLASH or a similar feature indicator in a future commit. Ref: https://github.com/openwrt/openwrt/pull/1331 Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2019-01-22 08:50:09 +00:00
# Password crypt stubbing
config MUSL_DISABLE_CRYPT_SIZE_HACK
toolchain: musl: disable crypt size hack by default Enable this option and thus re-include crypt() support for the SHA256, SHA512 and Blowfish ciphers on all devices. According to commit 9365745f8e7b ("musl: add a hack to remove unused crypt() algorithms, saves ~14k after lzma") it should add about ~14k to the resulting image, which seems to be a reasonable size increase for consistent crypt() support. Decided to not remove this hack completely as it might be still useful for people trying to fit custom images onto smaller devices and the patch is rather simple so we can afford to keep it for now. References: https://github.com/openwrt/openwrt/pull/1331 Signed-off-by: Petr Štetiar <ynezz@true.cz>
2021-12-14 11:12:18 +00:00
bool
prompt "Include crypt() support for SHA256, SHA512 and Blowfish ciphers" if TOOLCHAINOPTS
depends on USE_MUSL && !EXTERNAL_TOOLCHAIN
default y
musl: improve crypt() size hack Instead of silently downgrading any non-MD5 crypt() request to DES, cleanly fail with return NULL and errno = ENOSYS. This allows callers to notice the missing support instead of the unwanted silent fallback to DES. Also add a menuconfig toolchain option to optionally disable the crypt size hack completely. This can be probably made dependant on SMALL_FLASH or a similar feature indicator in a future commit. Ref: https://github.com/openwrt/openwrt/pull/1331 Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2019-01-22 08:50:09 +00:00
help
Enable this option to re-include crypt() support for the SHA256, SHA512 and
Blowfish ciphers. Without this option, attempting to hash a string with a salt
requesting one of these ciphers will cause the crypt() function to call stub
implementations which will always fail with errno ENOSYS. Including the ciphers
will increase the library size by about 14KB after LZMA compression.