From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Thu, 27 Nov 2025 08:41:53 +0100 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vOWdV-005Lqx-2R for lore@lore.pengutronix.de; Thu, 27 Nov 2025 08:41:53 +0100 Received: from localhost ([127.0.0.1] helo=metis.whiteo.stw.pengutronix.de) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1vOWdV-0001qF-K3; Thu, 27 Nov 2025 08:41:53 +0100 Received: from dude03.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::39]) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1vOWd9-0001pt-SW; Thu, 27 Nov 2025 08:41:31 +0100 From: Holger Assmann To: ptxdist@pengutronix.de Date: Thu, 27 Nov 2025 08:41:10 +0100 Message-ID: <20251127074110.3943109-1-h.assmann@pengutronix.de> X-Mailer: git-send-email 2.47.3 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [ptxdist] [PATCH] util-linux: add option for building setpriv X-BeenThere: ptxdist@pengutronix.de X-Mailman-Version: 2.1.29 Precedence: list List-Id: PTXdist Development Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: ptxdist@pengutronix.de Cc: Holger Assmann Sender: "ptxdist" X-SA-Exim-Connect-IP: 127.0.0.1 X-SA-Exim-Mail-From: ptxdist-bounces@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false The util-linux implementation of setpriv vastly differs from the one already provided by busybox: Whilst the latter one only provides functionality to act on certain Linux capabilities, the version by util-linux also allows for more sophisticated operations like UID/GID management or environment handling. Signed-off-by: Holger Assmann --- rules/util-linux.in | 11 +++++++++++ rules/util-linux.make | 3 ++- 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/rules/util-linux.in b/rules/util-linux.in index 6ff817997..5f7fbd269 100644 --- a/rules/util-linux.in +++ b/rules/util-linux.in @@ -5,6 +5,7 @@ menuconfig UTIL_LINUX prompt "util-linux " select GCCLIBS_GCC_S select LIBC_CRYPT if UTIL_LINUX_SULOGIN + select LIBCAP_NG if UTIL_LINUX_SETPRIV select HOST_MESON select UTIL_LINUX_LIBBLKID select UTIL_LINUX_LIBUUID if UTIL_LINUX_MKSWAP_UUID @@ -555,6 +556,16 @@ config UTIL_LINUX_SWAPON comment "BusyBox' swapon is selected!" depends on BUSYBOX_SWAPON +config UTIL_LINUX_SETPRIV + bool + depends on !BUSYBOX_SETPRIV + prompt "setpriv" + help + Run a program with different Linux privilege settings. + +comment "BusyBox' setpriv is selected!" + depends on BUSYBOX_SETPRIV + config UTIL_LINUX_SETSID bool depends on !BUSYBOX_SETSID diff --git a/rules/util-linux.make b/rules/util-linux.make index bcf36b195..9e7f0f2f0 100644 --- a/rules/util-linux.make +++ b/rules/util-linux.make @@ -143,7 +143,7 @@ UTIL_LINUX_CONF_OPT := \ -Dbuild-script=disabled \ -Dbuild-scriptutils=disabled \ -Dbuild-setarch=disabled \ - -Dbuild-setpriv=disabled \ + -Dbuild-setpriv=$(call ptx/endis, PTXCONF_UTIL_LINUX_SETPRIV)d \ -Dbuild-setterm=$(call ptx/endis, PTXCONF_UTIL_LINUX_SETTERM)d \ -Dbuild-su=disabled \ -Dbuild-sulogin=$(call ptx/endis, PTXCONF_UTIL_LINUX_SULOGIN)d \ @@ -271,6 +271,7 @@ UTIL_LINUX_BIN-$(PTXCONF_UTIL_LINUX_READPROFILE) += sbin/readprofile UTIL_LINUX_BIN-$(PTXCONF_UTIL_LINUX_RFKILL) += sbin/rfkill UTIL_LINUX_BIN-$(PTXCONF_UTIL_LINUX_SWAPON) += sbin/swapoff sbin/swapon UTIL_LINUX_BIN-$(PTXCONF_UTIL_LINUX_PIPESZ) += bin/pipesz +UTIL_LINUX_BIN-$(PTXCONF_UTIL_LINUX_SETPRIV) += bin/setpriv UTIL_LINUX_BIN-$(PTXCONF_UTIL_LINUX_SETSID) += bin/setsid UTIL_LINUX_BIN-$(PTXCONF_UTIL_LINUX_SWITCH_ROOT) += sbin/switch_root UTIL_LINUX_BIN-$(PTXCONF_UTIL_LINUX_UMOUNT) += bin/umount -- 2.47.3