Closes #1946.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Fixed typo on lxc.spec.in

Signed-off-by: David Negreira David@otherreality.net

doc: documents lxc.namespace.[namespace identifier] + confile: improve legacy update message

Improve lxc-oci.in

Closes #1924.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: Felix Abecassis <fabecassis@nvidia.com>

Signed-off-by: Felix Abecassis <fabecassis@nvidia.com>

Signed-off-by: Felix Abecassis <fabecassis@nvidia.com>

Signed-off-by: Felix Abecassis <fabecassis@nvidia.com>

Closes #1938.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: Felix Abecassis <fabecassis@nvidia.com>

Signed-off-by: Felix Abecassis <fabecassis@nvidia.com>

Signed-off-by: Felix Abecassis <fabecassis@nvidia.com>

lxc-test-unpriv: check user existence before removing it

confile_utils: fix overlapping strncpy

Check the test user (lxcunpriv) before calling deluser command,
otherwise it will print unnecessary error message:
/usr/sbin/deluser: The user 'lxcunpriv' does not exist.
Signed-off-by: Po-Hsu Lin <po-hsu.lin@canonical.com>

In the case of "lxc.net.0.type", the pointers passed to strncpy were
only 2 elements apart, resulting in undefined behavior.
Signed-off-by: Felix Abecassis <fabecassis@nvidia.com>

lxc_init: set the control terminal in the child session

Signed-off-by: Jonathan Calmels <jcalmels@nvidia.com>

commands: fix state socket implementation

Remove dead state clients from state client list. Consider the following
scenario:

01 start container
02 issue shutdown request
03 state_client_fd is added to lxc_handler
03 container doesn't respond to shutdown request
04 user aborts shutdown request
05 lxc_cmd_fd_cleanup() removes state_client_fd from lxc_mainloop
06 invalid state_client_fd is still recorded in the lxc_handler
07 user issues lxc_cmd_stop() request via SIGKILL
08 container reaches STOPPED state and sends message to state_client_fd
09 state_client_fd number has been reused by lxc_cmd_stop_callback()
10 invalid data gets dumped to lxc_cmd_stop()

Reproducer:
Set an invalid shutdown signal to which the init system does not respond with a
shutdown via lxc.signal.halt e.g. "lxc.signal.halt = SIGUSR1". Then do:

1. start container
    root@conventiont|~
    > lxc-start -n a1

2. try to shutdown container
    root@conventiont|~
    > lxc-stop -n a1

3. abort shutdown
^C

4. SIGKILL the container (lxc.signal.stop = SIGKILL)
    root@conventiont|~
    > lxc-stop -n a1 -k
    lxc-stop: a1: commands.c: lxc_cmd_rsp_recv: 165 File too large - Response data for command "stop" is too long: 12641 bytes > 8192

To not let this happen we remove the state_client_fd from the lxc_handler when
we detect a cleanup event in lxc_cmd_fd_cleanup().
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Fix lxc_inherit_namespace function error

Signed-off-by: LiFeng <lifeng68@huawei.com>

console: add lxc.console.buffer.size, lxc.console.buffer.logfile, lxc.console.rotate

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

When a "clear" request is sent to the console ringbuffer we should truncate the
console log file as well.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

The lxc_console_create() function used to munge the ringbuffer setup and the
log file setup already. This made somewhat sense when we didn't have a separate
ringbuffer log file. Now it's just plain confusing. So split this into logical
helpers that future maintainers can understand:

- lxc_console_create_log_file()
- lxc_console_create_ringbuf(console);
- lxc_console_create_ringbuf_log_file(console);
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

If we do it unconditionally a request to only clear the ringbuffer and not read
or write anything will fail.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Determines the size of the ringbuffer.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

console: exit mainloop on SIGTERM

lvm: generate new UUID for xfs + btrfs filesystems

Closes #1909.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

This allows cleanly exiting a console session without control sequences.

Relates to https://github.com/lxc/lxd/pull/4001 .

Note that the existence of a signal handler now doesn't guarantee that ts->node
is allocated. Instead, ts->node will now only be added to if stdinfd is a tty.
New checks need to take that into account.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Non-functional changes to enable handling more signals.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>