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path: root/src/nspawn/nspawn-mount.c
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2016-07-20nspawn: when netns is on, mount /proc/sys/net writableLennart Poettering
Normally we make all of /proc/sys read-only in a container, but if we do have netns enabled we can make /proc/sys/net writable, as things are virtualized then.
2016-07-18nspawn: decrease mkdir error logging in /sys to debug priority (#3748)tblume
Such mkdir errors happen for example when trying to mkdir /sys/fs/selinux. /sys is documented to be readonly in the container, so mkdir errors below /sys can be expected. They shouldn't be logged as warnings since they lead users to think that there is something wrong.
2016-04-01prevent systemd-nspawn from trying to create targetBjørnar Ness
for bind-mounts when they already exist. This allows bind-mounting over read-only files.
2016-03-26cgroup2: use new fstype for unified hierarchyAlban Crequy
Since Linux v4.4-rc1, __DEVEL__sane_behavior does not exist anymore and is replaced by a new fstype "cgroup2". With this patch, systemd no longer supports the old (unstable) way of doing unified hierarchy with __DEVEL__sane_behavior and systemd now requires Linux v4.4 for unified hierarchy. Non-unified hierarchy is still the default and is unchanged by this patch. https://github.com/torvalds/linux/commit/67e9c74b8a873408c27ac9a8e4c1d1c8d72c93ff
2016-02-10tree-wide: remove Emacs lines from all filesDaniel Mack
This should be handled fine now by .dir-locals.el, so need to carry that stuff in every file.
2015-11-09treewide: apply errno.cocciMichal Schmidt
with small manual cleanups for style.
2015-10-27util-lib: split out allocation calls into alloc-util.[ch]Lennart Poettering
2015-10-27user-util: move UID/GID related macros from macro.h to user-util.hLennart Poettering
2015-10-27util-lib: split stat()/statfs()/stavfs() related calls into stat-util.[ch]Lennart Poettering
2015-10-27util-lib: move a number of fs operations into fs-util.[ch]Lennart Poettering
2015-10-27util-lib: move mount related utility calls to mount-util.[ch]Lennart Poettering
2015-10-27util-lib: split string parsing related calls from util.[ch] into parse-util.[ch]Lennart Poettering
2015-10-24util-lib: split our string related calls from util.[ch] into its own file ↵Lennart Poettering
string-util.[ch] There are more than enough calls doing string manipulations to deserve its own files, hence do something about it. This patch also sorts the #include blocks of all files that needed to be updated, according to the sorting suggestions from CODING_STYLE. Since pretty much every file needs our string manipulation functions this effectively means that most files have sorted #include blocks now. Also touches a few unrelated include files.
2015-10-24util: split out escaping code into escape.[ch]Lennart Poettering
This really deserves its own file, given how much code this is now.
2015-10-20nspawn: skip /sys-as-tmpfs if we don't use private-networkIago López Galeiras
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
2015-10-09nspawn: create /sys/fs/cgroup for unified hierarchy as wellMirco Tischler
2015-09-30nspawn: mount /sys as tmpfs, and then mount only select subdirs of the real ↵Lennart Poettering
sysfs below it This way we can hide things like /sys/firmware or /sys/hypervisor from the container, while keeping the device tree around. While this is a security benefit in itself it also allows us to fix issue #1277. Previously we'd mount /sys before creating the user namespace, in order to be able to mount /sys/fs/cgroup/* beneath it (which resides in it), which we can only mount outside of the user namespace. To ensure that the user namespace owns the network namespace we'd set up the network namespace at the same time as the user namespace. Thus, we'd still see the /sys/class/net/ from the originating network namespace, even though we are in our own network namespace now. With this patch, /sys is mounted before transitioning into the user namespace as tmpfs, so that we can also mount /sys/fs/cgroup/* into it this early. The directories such as /sys/class/ are then later added in from the real sysfs from inside the network and user namespace so that they actually show whatis available in it. Fixes #1277
2015-09-30nspawn: fix user namespace supportLennart Poettering
We didn#t actually pass ownership of /run to the UID in the container since some releases, let's fix that.
2015-09-30nspawn: make sure mount_legacy_cgroup_hierarchy() can deal with NULL root ↵Lennart Poettering
directories
2015-09-07nspawn: remove nspawn.h, it's empty nowLennart Poettering
2015-09-07nspawn: split out mount related functions into a new nspawn-mount.c fileLennart Poettering