nsenter: failed to execute : No such file or directory

[erincerys]

Hi,

Getting this error when trying to use your impressive script on Archlinux.

https://gist.github.com/ischoonover/c43788c584f900a967fd0af30cc901ad

This occurs when calling it just as vpnify too. I just added the sudo bash -x to get more verbose output.

Unfortunately I'm not privvy to how all this works, so I was hoping you might have a solution.

~ian

[glubsy]

I have the same problem.

Apparently, the problem lies with the first parameter passed to nsenter, which is '' since the $MOUNT_NS variable is not set properly.

[erincerys]

You're right, @glubsy. I did notice this when doing the initial troubleshooting. Now that I've put some more time and thought into it, I got it to work by modifying the last line of the file

NSENTER_CMD='nsenter'
if [ "$MOUNT_NS" ] ; then
        NSENTER_CMD="$NSENTER_CMD $MOUNT_NS"
fi
$NSENTER_CMD "$NETWORK_NS" sudo -Eu "$SUDO_USER" -- "$SHELL" -c "$COMMAND"

So, in this case, if /etc/vpnify doesn't exist, it won't try to create the filesystem mount space for passing resolv.conf / hosts file to the VPN application.

Voila!

[ian@chandra ~]$ vpnify wg-quick up mullvad-us3                                                                                                                                                                                                                                                                   
[#] ip link add mullvad-us3 type wireguard
[#] wg setconf mullvad-us3 /dev/fd/63
[#] ip address add 10.99.5.151/32 dev mullvad-us3
[#] ip link set mtu 1420 up dev mullvad-us3
[#] resolvconf -a mullvad-us3 -m 0 -x
[#] wg set mullvad-us3 fwmark 51820
[#] ip -4 route add 0.0.0.0/0 dev mullvad-us3 table 51820
[#] ip -4 rule add not fwmark 51820 table 51820
[#] ip -4 rule add table main suppress_prefixlength 0
[#] iptables -I OUTPUT ! -o mullvad-us3 -m mark ! --mark $(wg show mullvad-us3 fwmark) -m addrtype ! --dst-type LOCAL -j REJECT && ip6tables -I OUTPUT ! -o mullvad-us3 -m mark ! --mark $(wg show mullvad-us3 fwmark) -m addrtype ! --dst-type LOCAL -j REJECT

[glubsy]

Nice, thanks!

It's to be noted that the script has to be named exactly the same as as its config directory in /etc/vpnify/ too ($(basename "$0")), otherwise it won't find the resolv.conf and hosts files.

Anyway, I can confirm this works well. Thanks for sharing!

[laserbat]

Oh wow, apparently github doesn't notify me on issues on my repos! Oops

This definitely looks like a bug, thank you for noticing and providing a fix. I've added it to code