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authorIago López Galeiras <iaguis@gmail.com>2015-10-15 12:13:13 +0200
committerIago López Galeiras <iaguis@gmail.com>2015-10-20 10:19:23 +0200
commitd167824896e583ffaca891b1c355ff852496ff66 (patch)
tree7a5e78bc85ee51a3b1639e8ffa75133eaff55ae8 /src/basic/rm-rf.c
parentec566e4c7cee67ec2c39475ef08f18a9f1b80efd (diff)
nspawn: skip /sys-as-tmpfs if we don't use private-network
Since v3.11/7dc5dbc ("sysfs: Restrict mounting sysfs"), the kernel doesn't allow mounting sysfs if you don't have CAP_SYS_ADMIN rights over the network namespace. So the mounting /sys as a tmpfs code introduced in d8fc6a000fe21b0c1ba27fbfed8b42d00b349a4b doesn't work with user namespaces if we don't use private-net. The reason is that we mount sysfs inside the container and we're in the network namespace of the host but we don't have CAP_SYS_ADMIN over that namespace. To fix that, we mount /sys as a sysfs (instead of tmpfs) if we don't use private network and ignore the /sys-as-a-tmpfs code if we find that /sys is already mounted as sysfs. Fixes #1555
Diffstat (limited to 'src/basic/rm-rf.c')
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