From: Serge Hallyn <serge.hal...@ubuntu.com>
Signed-off-by: Serge Hallyn <serge.hal...@ubuntu.com>
---
templates/lxc-busybox.in | 44 +++++++++++++++++++++++++++++++-------------
1 file changed, 31 insertions(+), 13 deletions(-)
diff --git a/templates/lxc-busybox.in b/templates/lxc-busybox.in
index cbdaaf3..7aa4130 100644
--- a/templates/lxc-busybox.in
+++ b/templates/lxc-busybox.in
@@ -20,6 +20,17 @@
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+am_in_userns() {
+ [ -e /proc/self/uid_map ] || { echo no; return; }
+ [ "$(wc -l /proc/self/uid_map | awk '{ print $1 }')" -eq 1 ] || { echo
yes; return; }
+ line=$(awk '{ print $1 " " $2 " " $3 }' /proc/self/uid_map)
+ [ "$line" = "0 0 4294967295" ] && { echo no; return; }
+ echo yes
+}
+
+in_userns=0
+[ $(am_in_userns) = "yes" ] && in_userns=1
+
install_busybox()
{
rootfs=$1
@@ -55,19 +66,26 @@ $rootfs/usr/lib64"
pushd $rootfs/dev > /dev/null || return 1
# minimal devices needed for busybox
- mknod tty c 5 0 || res=1
- mknod console c 5 1 || res=1
- chmod 666 tty console || res=1
- mknod tty0 c 4 0 || res=1
- mknod tty1 c 4 0 || res=1
- mknod tty5 c 4 0 || res=1
- chmod 666 tty0 || res=1
- mknod ram0 b 1 0 || res=1
- chmod 600 ram0 || res=1
- mknod null c 1 3 || res=1
- chmod 666 null || res=1
- mknod urandom c 1 9 || res=1
- chmod 666 urandom || res=1
+ if [ $in_userns -eq 1 ]; then
+ for dev in tty console tty0 tty1 tty5 ram0 null urandom; do
+ touch $rootfs/dev/$dev
+ echo "/dev/$dev dev/$dev none bind 0 0" >> $path/fstab
+ done
+ else
+ mknod tty c 5 0 || res=1
+ mknod console c 5 1 || res=1
+ chmod 666 tty console || res=1
+ mknod tty0 c 4 0 || res=1
+ mknod tty1 c 4 0 || res=1
+ mknod tty5 c 4 0 || res=1
+ chmod 666 tty0 || res=1
+ mknod ram0 b 1 0 || res=1
+ chmod 600 ram0 || res=1
+ mknod null c 1 3 || res=1
+ chmod 666 null || res=1
+ mknod urandom c 1 9 || res=1
+ chmod 666 urandom || res=1
+ fi
popd > /dev/null
--
1.8.1.2
------------------------------------------------------------------------------
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