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| author | Julien Dusser <julien.dusser@free.fr> | 2018-01-08 23:47:06 +0100 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2018-01-27 16:46:45 +0100 |
| commit | df0bd42fdeb76c9bc51b816c3df699db123c0024 (patch) | |
| tree | 1057e289580397c014b2c9c4460057e9e7ac8367 /package | |
| parent | ca7e8627dbbbcae0d1bfacea51d9b564617195de (diff) | |
| download | upstream-df0bd42fdeb76c9bc51b816c3df699db123c0024.tar.gz upstream-df0bd42fdeb76c9bc51b816c3df699db123c0024.tar.bz2 upstream-df0bd42fdeb76c9bc51b816c3df699db123c0024.zip | |
build: add hardened builds with PIE (ASLR) support
Introduce a configuration option to build a "hardened" OpenWrt with
ASLR PIE support.
Add new option PKG_ASLR_PIE to enable Address Space Layout Randomization (ASLR)
by building Position Independent Executables (PIE). This new option protects
against "return-to-text" attacks.
Busybox need a special care, link is done with ld, not gcc, leading to
unknown flags. Set BUSYBOX_DEFAULT_PIE instead and disable PKG_ASLR_PIE.
If other failing packages were found, PKG_ASLR_PIE:=0 should be added to
their Makefiles.
Original Work by: Yongkui Han <yonhan@cisco.com>
Signed-off-by: Julien Dusser <julien.dusser@free.fr>
Diffstat (limited to 'package')
| -rw-r--r-- | package/utils/busybox/Makefile | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/package/utils/busybox/Makefile b/package/utils/busybox/Makefile index 8866756aea..4f85cc9614 100644 --- a/package/utils/busybox/Makefile +++ b/package/utils/busybox/Makefile @@ -22,6 +22,9 @@ PKG_BUILD_PARALLEL:=1 PKG_CHECK_FORMAT_SECURITY:=0 PKG_INSTALL:=1 +#Busybox use it's own PIE config flag and LDFLAGS are used with ld, not gcc. +PKG_ASLR_PIE:=0 + PKG_LICENSE:=GPL-2.0 PKG_LICENSE_FILES:=LICENSE archival/libarchive/bz/LICENSE PKG_CPE_ID:=cpe:/a:busybox:busybox |