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jschwinger233 · Nov 26, 2023 · 670c960 · 670c960
1 parent aa38138
commit 670c960
Showing 1 changed file with 7 additions and 15 deletions.
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
@@ -69,26 +69,18 @@ jobs:
           cmd: |
             chmod +x /host/skbdump/skbdump
 
-      - name: Test netns -> 1.1.1.1
+      - name: SNAT
         uses: cilium/little-vm-helper@908ab1ff8a596a03cd5221a1f8602dc44c3f906d # v0.0.12
         with:
           provision: 'false'
           cmd: |
-            sysctl net.ipv4.conf.all.proxy_arp=1
-            sysctl net.ipv4.conf.default.proxy_arp=1
+            set -ex
 
-            ip net a testns
-            ip l a testns-veth type veth peer name testns-peer
-            ip l s testns-peer up
-            ip l s testns-veth netns testns
-            ip net e testns ip l s testns-veth up
-            ip r a 10.0.0.1 dev testns-peer
-            ip net e testns ip a a 10.0.0.1 dev testns-veth
-            ip net e testns ip r a default dev testns-veth
+            iptables -t nat -I POSTROUTING 1 -d 1.1.1.1/32 -p tcp --dport 80 -o enp0s2 -j SNAT --to 10.0.0.6:23333
 
-            iptables -t filter --policy FORWARD ACCEPT
-            iptables -t nat -I POSTROUTING 1 -s 10.0.0.1/24 -o enp0s2 -j MASQUERADE
-
-            /host/skbdump/skbdump --oneshot -i any 'dst host 1.1.1.1 and tcp[tcpflags] = tcp-syn' 2>&1 1>/tmp/log | (read _; sleep 1; ip net e testns curl --connect-timeout 1 1.1.1.1 &>/dev/null || true)
+            /host/skbdump/skbdump --oneshot -i any -f nf_hook_slow 'dst host 1.1.1.1 and tcp[tcpflags] = tcp-syn' 2>&1 1>/tmp/log | (read _; curl --local-port 8888 1.1.1.1 &>/dev/null || true)
 
             cat /tmp/log
+            cat /tmp/log | grep 'out@'
+            cat /tmp/log | grep -P 'nf_hook_slow@.*8888>80'
+            cat /tmp/log | grep -P 'nf_hook_slow+r@*23333>80'