1 files changed, 47 insertions, 0 deletions
diff --git a/data.d/vpn-wireguard/hooks/post-up b/data.d/vpn-wireguard/hooks/post-up
new file mode 100755
index 0000000..edbcd50
--- /dev/null
+++ b/data.d/vpn-wireguard/hooks/post-up
@@ -0,0 +1,47 @@
+#!/usr/bin/env bash
+
+readonly COLOR_RESET="\033[0m"
+readonly COLOR_OK="\033[32;1m"
+readonly COLOR_NOK="\033[31;1m"
+readonly BUFFER="$(mktemp)"
+
+main() {
+	printf "Verifying connectability...\n"
+
+	# Ping all known hosts, as it seems that the wireguard interface comes up when
+	# only after it gets used on the machine itself.
+	while read -r addr;
+	do
+		check "$addr" &
+	done < <(awk -F= '/vpn-wireguard.ipv(4|6)=/ { print $NF }' /etc/bashtard/hosts.d/*)
+
+	wait
+
+	sort -- "$BUFFER" >&2
+}
+
+check() {
+	local addr="$1"
+
+	if ping -c 1 -q -w 1 "$addr" > /dev/null
+	then
+		log OK "$addr"
+	else
+		log NOK "$addr"
+	fi
+}
+
+log() {
+	local state="$1"
+	local addr="$2"
+	local color="$COLOR_NOK"
+
+	if [[ $state == "OK" ]]
+	then
+		color="$COLOR_OK"
+	fi
+
+	printf "%b%3s%b: %s\n" "$color" "$state" "$COLOR_RESET" "$addr" >> "$BUFFER"
+}
+
+main "$@"