ci: Test IPv6 for WAN and LAN

Author: jschwinger233

.github/workflows/kernel-test.yml

@@ -133,7 +133,7 @@ jobs:
             cd /host
 
             docker exec dae apt update
-            docker exec dae apt install -y curl dnsutils
+            docker exec dae apt install -y curl dnsutils netcat
 
             vmess_link=$(base64 -w0 vmess.json)
             cat > ./conf.dae <<!
@@ -187,6 +187,17 @@ jobs:
             docker exec dae dig @8.8.8.8 one.one.one.one
             cat /host/v2ray.access.log | grep -q 'accepted udp:8.8.8.8:53'
 
+      - name: Check WAN IPv6 TCP
+        uses: cilium/little-vm-helper@908ab1ff8a596a03cd5221a1f8602dc44c3f906d # v0.0.12
+        with:
+          provision: 'false'
+          cmd: |
+            set -ex
+
+            docker exec dae nc -v -w1 2606:4700:4700::1111 80 &> /host/nc.log
+            cat /host/nc.log | grep -q 'succeeded!'
+            cat /host/dae.log | grep -F -- '-> [2606:4700:4700::1111]:80'
+
       - name: Setup LAN
         uses: cilium/little-vm-helper@908ab1ff8a596a03cd5221a1f8602dc44c3f906d # v0.0.12
         with:
@@ -211,6 +222,12 @@ jobs:
             ip net e dae ip r a 169.254.0.1 dev dae-veth
             ip net e dae ip r a default via 169.254.0.1 dev dae-veth
 
+            sysctl net.ipv6.conf.dae-veth-peer.disable_ipv6=0
+            ip -6 r a fd00:ffff::1 dev dae-veth-peer
+            ip -6 a a fe80::ecee:eeff:feee:eeee dev dae-veth-peer
+            ip net e dae ip -6 a a fd00:ffff::1 dev dae-veth
+            ip net e dae ip -6 r r default via fe80::ecee:eeff:feee:eeee dev dae-veth
+
             sysctl net.ipv4.conf.dae-veth-peer.proxy_arp=1
             sysctl net.ipv4.conf.dae-veth-peer.rp_filter=2
             iptables-legacy -t nat -A POSTROUTING -s 10.0.0.1/32 -j MASQUERADE
@@ -219,6 +236,7 @@ jobs:
 
             docker exec dae ping -c1 10.0.0.1
             docker exec dae ip net e dae curl 1.0.0.1
+            docker exec dae ping -c1 fd00:ffff::1
 
             docker exec dae sysctl net.ipv4.conf.dae-veth-peer.send_redirects=0
             docker exec dae sysctl net.ipv6.conf.dae-veth-peer.forwarding=1
@@ -274,3 +292,14 @@ jobs:
 
             docker exec dae ip net e dae dig @8.8.4.4 one.one.one.one
             cat /host/v2ray.access.log | grep -q 'accepted udp:8.8.4.4:53'
+
+      - name: Check LAN IPv6 TCP
+        uses: cilium/little-vm-helper@908ab1ff8a596a03cd5221a1f8602dc44c3f906d # v0.0.12
+        with:
+          provision: 'false'
+          cmd: |
+            set -ex
+
+            docker exec dae ip net e dae nc -v -w1 2606:4700:4700::1001 80 &> /host/nc.log
+            cat /host/nc.log | grep -q 'succeeded!'
+            cat /host/dae.log | grep -F -- '-> [2606:4700:4700::1001]:80'