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Henrique de Moraes Holschuh ad7c6102f2 busybox: fix missing install with suid bit set if FEATURE_SUID=y
With FEATURE_SUID=y one can install busybox binary belonging to root
with the suid bit set, enabling some applets to perform root-level
operations even when run by ordinary users. Busybox then drops
privileges for applets that don't need root access, before entering
their main() function.

Currently we don't install busybox binary with suid bit set, rendering
this feature unusable.

Note that we can't just "chmod u+s /bin/busybox" at runtime as a
"cheaper" solution: it would waste approximately 200KiB of FLASH (the
whole /bin/busybox binary gets copied into the overlay).

Ref: PR#2502
Signed-off-by: Henrique de Moraes Holschuh <henrique@nic.br>
[commit title/description facelift, use INSTALL_SUID variable]
Signed-off-by: Petr Štetiar <ynezz@true.cz>
2019-11-07 22:50:16 +01:00
.github build: Update README & github help 2018-07-08 09:41:53 +01:00
config Revert "build: separate signing logic" 2019-10-21 16:26:24 +02:00
include build: label kernel and rootfs ext4 volumes 2019-11-03 04:25:40 +00:00
package busybox: fix missing install with suid bit set if FEATURE_SUID=y 2019-11-07 22:50:16 +01:00
scripts scripts/dl_github_archive.py: fix python3 str, bytes confusion 2019-11-04 11:11:19 +00:00
target ramips: rename keys node formerly named button 2019-11-07 17:13:18 +01:00
toolchain toolchain: gcc: enable sanitizers for glibc toolchain 2019-10-24 11:40:00 +00:00
tools ath79: add support for the TP-LINK CPE220 V3 2019-11-06 13:37:40 +01:00
.gitattributes add .gitattributes to prevent the git autocrlf option from messing with CRLF/LF in files 2012-05-08 13:30:49 +00:00
.gitignore gitignore: ignore patches in OpenWrt root directory 2019-11-06 00:27:55 +01:00
BSDmakefile add missing copyright header 2007-02-26 01:05:09 +00:00
Config.in merge: base: update base-files and basic config 2017-12-08 19:41:18 +01:00
feeds.conf.default feeds: switch git.lede-project.org URLs to git.openwrt.org 2018-01-16 16:59:22 +01:00
LICENSE finally move buildroot-ng to trunk 2016-03-20 17:29:15 +01:00
Makefile build: add buildinfo as single Makefile target 2019-10-17 14:01:33 +02:00
README build: switch to Python 3 2019-07-26 08:09:16 +02:00
rules.mk rules.mk: remove "$(STAGING_DIR)/include" 2019-11-02 20:51:56 +01:00

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 |   -   ||  _  |  -__|     ||  |  |  ||   _||   _|
 |_______||   __|_____|__|__||________||__|  |____|
          |__| W I R E L E S S   F R E E D O M
 -----------------------------------------------------

This is the buildsystem for the OpenWrt Linux distribution.

To build your own firmware you need a Linux, BSD or MacOSX system (case
sensitive filesystem required). Cygwin is unsupported because of the lack
of a case sensitive file system.

You need gcc, binutils, bzip2, flex, python3.5+, perl, make, find, grep, diff,
unzip, gawk, getopt, subversion, libz-dev and libc headers installed.

1. Run "./scripts/feeds update -a" to obtain all the latest package definitions
defined in feeds.conf / feeds.conf.default

2. Run "./scripts/feeds install -a" to install symlinks for all obtained
packages into package/feeds/

3. Run "make menuconfig" to select your preferred configuration for the
toolchain, target system & firmware packages.

4. Run "make" to build your firmware. This will download all sources, build
the cross-compile toolchain and then cross-compile the Linux kernel & all
chosen applications for your target system.

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	http://www.openwrt.org