From c7cda4734292bca540402bb87d1a258f2e4a0eaa Mon Sep 17 00:00:00 2001 From: Pierre Schmitz Date: Mon, 11 Jun 2012 16:44:23 +0200 Subject: Enable signature checking within build environment * bind /sys and /dev/pts from host * drop support for devtmpfs as it is no longer needed * add /run and /dev/rtc0 * clone own ipc, uts and mount namespaces for chroot * set localtime, timezone and locale within chroot environment * copy /etc/pacman.d/gnupg from host --- mkarchroot.in | 58 ++++++++++++++++++++++++++++++++-------------------------- 1 file changed, 32 insertions(+), 26 deletions(-) (limited to 'mkarchroot.in') diff --git a/mkarchroot.in b/mkarchroot.in index 3eb7464..1b02e0e 100644 --- a/mkarchroot.in +++ b/mkarchroot.in @@ -30,7 +30,6 @@ usage() { echo ' -M Location of a makepkg config file' echo ' -n Do not copy config files into the chroot' echo ' -c Set pacman cache. Default: /var/cache/pacman/pkg' - echo ' -d Use devtmpfs instead of minimal /dev (tmpfs)' echo ' -h This message' exit 1 } @@ -87,38 +86,40 @@ fi # {{{ functions chroot_mount() { [[ -e "${working_dir}/sys" ]] || mkdir "${working_dir}/sys" - mount -t sysfs sysfs "${working_dir}/sys" + mount -o bind /sys "${working_dir}/sys" + mount -o remount,ro,bind "${working_dir}/sys" [[ -e "${working_dir}/proc" ]] || mkdir "${working_dir}/proc" - mount -t proc proc "${working_dir}/proc" + mount -t proc proc -o nosuid,noexec,nodev "${working_dir}/proc" + mount -o bind /proc/sys "${working_dir}/proc/sys" + mount -o remount,ro,bind "${working_dir}/proc/sys" [[ -e "${working_dir}/dev" ]] || mkdir "${working_dir}/dev" - if [[ ${USE_DEVTMPFS} = "y" ]]; then - mount -t devtmpfs dev "${working_dir}/dev" -o mode=0755,nosuid - else - mount -t tmpfs dev "${working_dir}/dev" -o mode=0755,size=10M,nosuid - mknod -m 666 "${working_dir}/dev/null" c 1 3 - mknod -m 666 "${working_dir}/dev/zero" c 1 5 - mknod -m 600 "${working_dir}/dev/console" c 5 1 - mknod -m 644 "${working_dir}/dev/random" c 1 8 - mknod -m 644 "${working_dir}/dev/urandom" c 1 9 - mknod -m 666 "${working_dir}/dev/tty" c 5 0 - mknod -m 666 "${working_dir}/dev/ptmx" c 5 2 - mknod -m 666 "${working_dir}/dev/tty0" c 4 0 - mknod -m 666 "${working_dir}/dev/full" c 1 7 - ln -s /proc/kcore "${working_dir}/dev/core" - ln -s /proc/self/fd "${working_dir}/dev/fd" - ln -s /proc/self/fd/0 "${working_dir}/dev/stdin" - ln -s /proc/self/fd/1 "${working_dir}/dev/stdout" - ln -s /proc/self/fd/2 "${working_dir}/dev/stderr" - fi + mount -t tmpfs dev "${working_dir}/dev" -o mode=0755,size=10M,nosuid,strictatime + mknod -m 666 "${working_dir}/dev/null" c 1 3 + mknod -m 666 "${working_dir}/dev/zero" c 1 5 + mknod -m 600 "${working_dir}/dev/console" c 5 1 + mknod -m 644 "${working_dir}/dev/random" c 1 8 + mknod -m 644 "${working_dir}/dev/urandom" c 1 9 + mknod -m 666 "${working_dir}/dev/tty" c 5 0 + mknod -m 666 "${working_dir}/dev/ptmx" c 5 2 + mknod -m 666 "${working_dir}/dev/tty0" c 4 0 + mknod -m 666 "${working_dir}/dev/full" c 1 7 + mknod -m 666 "${working_dir}/dev/rtc0" c 254 0 + ln -s /proc/kcore "${working_dir}/dev/core" + ln -s /proc/self/fd "${working_dir}/dev/fd" + ln -s /proc/self/fd/0 "${working_dir}/dev/stdin" + ln -s /proc/self/fd/1 "${working_dir}/dev/stdout" + ln -s /proc/self/fd/2 "${working_dir}/dev/stderr" [[ -e "${working_dir}/dev/shm" ]] || mkdir "${working_dir}/dev/shm" mount -t tmpfs shm "${working_dir}/dev/shm" -o nodev,nosuid,size=128M [[ -e "${working_dir}/dev/pts" ]] || mkdir "${working_dir}/dev/pts" - mount -t devpts devpts "${working_dir}/dev/pts" -o newinstance,ptmxmode=666 - mount -o bind "${working_dir}/dev/pts/ptmx" "${working_dir}/dev/ptmx" + mount -o bind /dev/pts "${working_dir}/dev/pts" + + [[ -e "${working_dir}/run" ]] || mkdir "${working_dir}/run" + mount -t tmpfs tmpfs "${working_dir}/run" -o nodev,nosuid,strictatime,size=64M [[ -e $cache_dir ]] || mkdir -p "${cache_dir}" [[ -e "${working_dir}/${cache_dir}" ]] || mkdir -p "${working_dir}/${cache_dir}" @@ -135,6 +136,7 @@ chroot_mount() { copy_hostconf () { cp /etc/resolv.conf "${working_dir}/etc/resolv.conf" + cp -a /etc/pacman.d/gnupg "${working_dir}/etc/pacman.d" echo "Server = ${host_mirror}" > ${working_dir}/etc/pacman.d/mirrorlist if [[ -n $pac_conf && $NOCOPY = 'n' ]]; then @@ -147,12 +149,13 @@ copy_hostconf () { } chroot_umount () { + umount "${working_dir}/proc/sys" umount "${working_dir}/proc" umount "${working_dir}/sys" - umount "${working_dir}/dev/ptmx" umount "${working_dir}/dev/pts" umount "${working_dir}/dev/shm" umount "${working_dir}/dev" + umount "${working_dir}/run" umount "${working_dir}/${cache_dir}" [[ -n $host_mirror_path ]] && umount "${working_dir}/${host_mirror_path}" } @@ -184,7 +187,7 @@ if [[ -n $RUN ]]; then chroot_mount copy_hostconf - eval chroot "${working_dir}" ${RUN} + eval unshare -mui -- chroot "${working_dir}" ${RUN} # }}} else @@ -226,6 +229,9 @@ else sed -i 's@^#\(en_US\|de_DE\)\(\.UTF-8\)@\1\2@' "${working_dir}/etc/locale.gen" chroot "${working_dir}" /usr/sbin/locale-gen fi + echo 'UTC' > "${working_dir}/etc/timezone" + ln -s /usr/share/zoneinfo/UTC "${working_dir}/etc/localtime" + echo 'LANG=C' > "${working_dir}/etc/locale.conf" copy_hostconf -- cgit v1.2.3-24-g4f1b