From b0d8800b52948f075d36f4b1c3c8e4c5f883ca09 Mon Sep 17 00:00:00 2001
From: Tom Alexander <tom@fizz.buzz>
Date: Sun, 30 Jan 2022 02:33:08 -0500
Subject: [PATCH] Handle the networking.

---
 scripts/launch_bhyve.bash | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 mode change 100644 => 100755 scripts/launch_bhyve.bash

diff --git a/scripts/launch_bhyve.bash b/scripts/launch_bhyve.bash
old mode 100644
new mode 100755
index 0cb51ea..01e3af3
--- a/scripts/launch_bhyve.bash
+++ b/scripts/launch_bhyve.bash
@@ -4,6 +4,22 @@ set -euo pipefail
 IFS=$'\n\t'
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
+function cleanup {
+    for dev in "${devices[@]}"; do
+        echo "Deleting $dev"
+        ifconfig "$dev" destroy
+    done
+}
+devices=()
+for sig in EXIT INT QUIT HUP TERM; do
+  trap "set +e; cleanup" "$sig"
+done
+
+ifconfig tap1 create
+devices+=("tap1")
+ifconfig tap1 up
+ifconfig bridge0 addm tap1
+
 # 1 core
 # 1GB ram
 # -H yield the virtual CPU when HLT instruction is detected, otherwise bhyve eats the entire core
@@ -12,11 +28,14 @@ DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 # -U for specifying uuid, going to omit and see if the generated one works
 # -u RTC is in UTC
 # -s virtual PCI slots
+# -P force guest CPU to exit when PAUSE instruction detected
+set +e
 bhyve \
     -c 1 \
     -m 1024M \
     -H \
     -w \
+    -P \
     -l bootrom,/usr/local/share/uefi-firmware/BHYVE_UEFI.fd \
     -u \
     -s 0,hostbridge \
@@ -29,3 +48,17 @@ bhyve \
     -s 3:0,ahci-cd,/vm/.config/null.iso \
     -l com1,/dev/nmdm-docker.1A \
     docker
+bhyve_status=$?
+set -e
+
+if [ "$bhyve_status" == "0" ]; then
+    echo "rebooted"
+elif [ "$bhyve_status" == "1" ]; then
+    echo "powered off"
+elif [ "$bhyve_status" == "2" ]; then
+    echo "halted"
+elif [ "$bhyve_status" == "3" ]; then
+    echo "triple fault"
+elif [ "$bhyve_status" == "4" ]; then
+    echo "exited due to an error"
+fi