Signed-off-by: Kaarle Ritvanen <kaarle.ritvanen@datakunkku.fi>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

Signed-off-by: Christian Brauner <christianvanbrauner@gmail.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

CAP_BLOCK_SUSPEND (since Linux 3.5)
    Employ features that can block system suspend (epoll(7) EPOLLWAKEUP, /proc/sys/wake_lock).
Signed-off-by: Christian Brauner <christianvanbrauner@gmail.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

CAP_AUDIT_READ (since Linux 3.16)
    Allow reading the audit log via a multicast netlink socket.
Signed-off-by: Christian Brauner <christianvanbrauner@gmail.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

Signed-off-by: Christian Brauner <christianvanbrauner@gmail.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

Signed-off-by: Christian Brauner <christianvanbrauner@gmail.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

The dpkg architecture isn't relevant to LXC, only the kernel arch is.
Signed-off-by: Gergely Szasz <szaszg@hu.inter.net>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

handler->conf can't be null bc we checked handler->conf->epheemral
before calling lxc_destroy_container_on_signal()
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>

Don't proceed to try the mount if we failed to create the
target if it didn't exist.
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>

Since we want to use null-terminated abstract sockets, let's compute the length
of them correctly.
Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

systemd wants it.  It doesn't seem to be a big deal, but it's
one fewer error msg.
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

I've noticed that a bunch of the code we've included over the past few
weeks has been using 8-spaces rather than tabs, making it all very hard
to read depending on your tabstop setting.

This commit attempts to revert all of that back to proper tabs and fix a
few more cases I've noticed here and there.

No functional changes are included in this commit.
Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>

Otherwise the kernel will umount when it gets around to it, but
that on lxc_destroy we may race with it and fail the rmdir of
the overmounted (BUSY) rootfs.

This makes lxc-test-snapshot pass for me again.
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

(This *should* fix the lxc-test-snapshot testcase, but doesn't seem
to by itself.)

If it doesn't exist, we may as well start with an empty one.  This
is needed when creating an overlayfs snapshot.
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

We're asked to delete it, don't fail if it doesn't exist.

This stops lxc-destroy from failing when the container isn't fully
built.
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

Signed-off-by: Christian Brauner <christianvanbrauner@gmail.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

On shutdown ephemeral containers will be destroyed. We use mod_all_rdeps() from
lxccontainer.c to update the lxc_snapshots file of the original container. We
also include lxclock.h to lock the container when mod_all_rdeps() is called to
avoid races.
Signed-off-by: Christian Brauner <christianvanbrauner@gmail.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

Signed-off-by: Christian Brauner <christianvanbrauner@gmail.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

Here's some more config options that we do actually require to be able to
boot containers.
Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

I have no idea what this file is, but the build system seems to be
generating it, so let's ignore it.
Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

Use pwrite() to write terminating \0-byte

This allows us to use standard string handling functions and we can avoid using
the GNU-extension memmem(). This simplifies removing the container from the
lxc_snapshots file. Wrap strstr() in a while loop to remove duplicate entries.
Signed-off-by: Christian Brauner <christianvanbrauner@gmail.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

Signed-off-by: Stephane Nguyen <stephminh@yahoo.es>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

When lxc.ephemeral is set to 1 in the containers config it will be destroyed on
shutdown.
Signed-off-by: Christian Brauner <christianvanbrauner@gmail.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

Signed-off-by: Christian Brauner <christianvanbrauner@gmail.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

static do_bdev_destroy() and bdev_destroy_wrapper() from lxccontainer.c become
public bdev_destroy() and bdev_destroy_wrapper() in bdev.c and bdev.h
Signed-off-by: Christian Brauner <christianvanbrauner@gmail.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

Add lxc.ephemeral lxc.ephemeral indicates whether a container will be destroyed on shutdown Can be 0 for non-ephemeral and 1 for ephemeral.
Signed-off-by: Christian Brauner <christianvanbrauner@gmail.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

Closes #655

We can't rsync the delta as unpriv user because we can't create
the chardevs representing a whiteout.  We can however rsync the
rootfs and have the kernel create the whiteouts for us.

do_rsync: pass --delete
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

Signed-off-by: Christian Brauner <christianvanbrauner@gmail.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

Test edge cases (removing first and last entries in lxc_snapshots and the very
last snapshot) and make sure original container isn't destroyed while there are
snapshots, and is when there are none.
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

Newer kernels have added a new restriction:  if /proc or /sys on the
host has files or non-empty directories which are over-mounted, and
there is no /proc which fully visible, then it assumes there is a
"security" reason for this.  It prevents anyone in a non-initial user
namespace from creating a new proc or sysfs mount.

To work around this, this patch adds a new 'nesting.conf' which can be
lxc.include'd from a container configuration file.  It adds a
non-overmounted mount of /proc and /sys under /dev/.lxc, so that the
kernel can see that we're not trying to *hide* things like /proc/uptime.
and /sys/devices/virtual/net.  If the host adds this to the config file
for container w1, then container w1 will support unprivileged child
containers.

The nesting.conf file also sets the apparmor profile to the with-nesting
variant, since that is required anyway.  This actually means that
supporting nesting isn't really more work than it used to be, just
different.  Instead of adding

lxc.aa_profile = lxc-container-default-with-nesting

you now just need to

lxc.include = /usr/share/lxc/config/nesting.conf

(Look, fewer characters :)

Finally, in order to maintain the current apparmor protections on
proc and sys, we make /dev/.lxc/{proc,sys} non-read/writeable.
We don't need to be able to use them, we're just showing the
kernel what's what.
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

Update for commit dedd4f67Signed-off-by: Sungbae Yoo <sungbae.yoo@samsung.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

update for commit dbca9237Signed-off-by: Sungbae Yoo <sungbae.yoo@samsung.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

Update for commit 2d8632d5Signed-off-by: Sungbae Yoo <sungbae.yoo@samsung.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

Update for commit 585f3c6bSigned-off-by: Sungbae Yoo <sungbae.yoo@samsung.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

Update for commit f5b67b36Signed-off-by: Sungbae Yoo <sungbae.yoo@samsung.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

Update for commit dedd4f67Signed-off-by: KATOH Yasufumi <karma@jazz.email.ne.jp>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

update for commit dbca9237Signed-off-by: KATOH Yasufumi <karma@jazz.email.ne.jp>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

* Add the description of '-s' option
* Remove '-P' option, and add common options
* Improve Japanese translation
Signed-off-by: KATOH Yasufumi <karma@jazz.email.ne.jp>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

Add the description of optional, create=file/dir for lxc.mount.entry.
This is update for commit f5b67b36.
Signed-off-by: KATOH Yasufumi <karma@jazz.email.ne.jp>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>