'ip vrf pids' is used to list processes bound to a vrf, but it only
shows the pid leaving a lot of work for the user. Add the command
name to the output. With this patch you get the more user friendly:
$ ip vrf pids mgmt
1121 ntpd
1418 gdm-session-wor
1488 gnome-session
1491 dbus-launch
1492 dbus-daemon
1565 sshd
...
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Currently, if a non-root user attempts to run ip vrf exec a non-helpful
error is returned:
$ ip vrf exec mgmt bash
Failed to mount cgroup2. Are CGROUPS enabled in your kernel?
Only show the CGROUPS kernel hint for the ENODEV error and for the
rest show the strerror for the errno. So now:
$ ip/ip vrf exec mgmt bash
Failed to mount cgroup2: Operation not permitted
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Andy reported a missing newline if a non-root user attempts to run
'ip vrf exec':
$ ./ip/ip vrf exec default /bin/echo asdf
mkdir failed for /var/run/cgroup2: Permission deniedFailed to setup vrf cgroup2 directory
Reported-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Add make_path to recursively call mkdir as needed to create a given
path with the given mode.
Add find_cgroup2_mount to lookup path where cgroup2 is mounted. If it
is not already mounted, cgroup2 is mounted under /var/run/cgroup2 for
use by iproute2.
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
