netbird: add kmod-wireguard dependency

[wehagy]

Maintainer: Oskari Rauta / @oskarirauta
Compile tested: mips_24kc, ar71xx-ath79, generic, TP-Link, Archer C7, v4, OpenWrt SNAPSHOT r25907-ab9a29a320
Run tested: mips_24kc, ar71xx-ath79, generic, TP-Link, Archer C7, v4, OpenWrt SNAPSHOT r25907-ab9a29a320

Description:

• netbird supports the wireguard kernel module, but it can work without it in user mode, losing some performance, but we know in advance that netbird will run as root, therefore supporting the wireguard kernel mode with better performance.

Edit:

• Rebase and resolve conflicts
• Made requested changes
• Rebase
• I thought maybe on some really limited space devices this might be a problem, but from openwrt packages repo netbird_0.26.6-r1_mips_24kc.ipk it is 9922.5 KB and from openwrt kmods repo kmod-wireguard_6.1.82-r1_mips_24kc.ipk it is 37.7 KB and my compiled locally netbird_0.27.3-r1_mips_24kc.ipk is 9977 KB, nah, if kmod-wireguard can't be installed, netbird probably can't either.

[1715173329]

Ping @oskarirauta

[wehagy]

I found that installing only netbird results in the following error, making it unusable:

# netbird status -d
Error: status failed: new wg interface: couldn't check or load tun module

This error is due to the lack of the kmod-tun module to work in userspace mode, after the installation works normally:

# netbird status -d
[...REDACTED PEERS...]
Daemon version: 0.27.3
CLI version: 0.27.3
Management: Connected to https://api.netbird.io:443
Signal: Connected to https://signal.netbird.io:443
Relays:
  [stun:stun.netbird.io:5555] is Available
  [turns:turn.netbird.io:443?transport=tcp] is Available
Nameservers:
  [REDACTED] for [.] is Available
  [REDACTED] for [netbird.io] is Available
FQDN: REDACTED.netbird.cloud
NetBird IP: REDACTED
Interface type: Userspace
Quantum resistance: false
Routes: -
Peers count: 4/6 Connected

But since netbird works in kernelspace too there is also no reason to install kmod-tun, it makes more sense to install kmod-wireguard and use kernelspace which is more performant, after the install of the kmod-wireguard module:

# netbird status -d
[...REDACTED PEERS...]
Daemon version: 0.27.3
CLI version: 0.27.3
Management: Connected to https://api.netbird.io:443
Signal: Connected to https://signal.netbird.io:443
Relays:
  [stun:stun.netbird.io:5555] is Available
  [turns:turn.netbird.io:443?transport=tcp] is Available
Nameservers:
  [REDACTED] for [.] is Available
  [REDACTED] for [netbird.io] is Available
FQDN: REDACTED.netbird.cloud
NetBird IP: REDACTED
Interface type: Kernel
Quantum resistance: false
Routes: -
Peers count: 2/6 Connected

also kmod-wireguard size 35.59 KiB and kmod-tun size 26.47 KiB

Compile tested: x86, 64, x86_64, QEMU (x86_64), qemu-system-x86_64, 8.2.2, qemu, OpenWrt SNAPSHOT r26280-8113169cad
Run tested: x86, 64, x86_64, QEMU (x86_64), qemu-system-x86_64, 8.2.2, qemu, OpenWrt SNAPSHOT r26280-8113169cad

[wehagy]

Sorry closed by mistake.

[wehagy]

Ping @oskarirauta

[wehagy]

Maybe @oskarirauta is absent/too busy, @1715173329 we can merge this? I am building/using for my targets without any problem for months so far.

[1715173329]

@BKPepe any thoughts?

[1715173329]

Let's go for it, since wg-go is really awful.