From c0c8718917a45ce4f71c0197943ec316f40e0146 Mon Sep 17 00:00:00 2001
From: Alexander Bluhm <alexander.bluhm@gmx.net>
Date: Thu, 8 Feb 2024 17:01:06 +0100
Subject: [PATCH] Set linux interface in netlink environment.

---
 env-ot19.sh | 2 ++
 env-ot41.sh | 1 +
 env-ot42.sh | 1 +
 netlink.pl  | 6 +++---
 4 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/env-ot19.sh b/env-ot19.sh
index 42a04c0..5ce2b5b 100644
--- a/env-ot19.sh
+++ b/env-ot19.sh
@@ -4,6 +4,8 @@
 export MANAGEMENT_IF=em18
 export SKIP_IF=em18
 export NETLINK_LINE=3
+# currently there is no distinct linux interface for link 4, share with 3
+export LINUX_IF=enp6s0
 
 # allow to manually run perform tests frag and splice on netlink hosts
 
diff --git a/env-ot41.sh b/env-ot41.sh
index de7cda5..d69ee42 100644
--- a/env-ot41.sh
+++ b/env-ot41.sh
@@ -2,6 +2,7 @@
 export MANAGEMENT_IF=em4
 export SKIP_IF=em4,em2,em3
 export NETLINK_LINE=1
+export LINUX_IF=ens2f1
 
 # allow to manually run perform tests frag and splice on netlink hosts
 
diff --git a/env-ot42.sh b/env-ot42.sh
index b12dc51..167a4a2 100644
--- a/env-ot42.sh
+++ b/env-ot42.sh
@@ -2,6 +2,7 @@
 export MANAGEMENT_IF=igc2
 export SKIP_IF=igc2,igc3
 export NETLINK_LINE=2
+export LINUX_IF=ens2f0
 
 # allow to manually run perform tests frag and splice on netlink hosts
 
diff --git a/netlink.pl b/netlink.pl
index 278981d..243d372 100755
--- a/netlink.pl
+++ b/netlink.pl
@@ -58,6 +58,8 @@
     or die "NETLINK_LINE is not in env";
 my $management_if = $ENV{MANAGEMENT_IF}
     or die "MANAGEMENT_IF is not in env";
+my $linux_if = $ENV{LINUX_IF}
+    or die "LINUX_IF is not in env";
 
 my ($iftype, $ifnum) = $iface =~ /^([a-z]+)([0-9]+)?$/;
 grep { $_ eq $iftype } @allifaces
@@ -141,9 +143,7 @@
 my $obsd_r_tunnel_addr = "$ip4prefix.${line}4.3";
 my $obsd_r_tunnel_net = "$ip4prefix.${line}4.0/24";
 
-# currently there is no distinct linux interface for link 4, share with 3
-my %lnx_ifs = ( 1 => "ens2f1", 2 => "ens2f0", 3 => "enp6s0", 4 => "enp6s0" );
-my $lnx_if = $lnx_ifs{$line};
+my $lnx_if = $linux_if;
 my $lnx_pdev = "$lnx_if.$line";
 my $lnx_ipdev = $lnx_if;