Add CI testcases

1. Advanced pcap filters
2. --filter-track-skb

Signed-off-by: Zhichuan Liang <[email protected]>

Author: jschwinger233

.github/workflows/test.yml

@@ -85,6 +85,46 @@ jobs:
             curl -vvv -sS --fail --connect-timeout "1" -o /dev/null http://[2606:4700:4700::1001]:8080 || true
           expected-output-pattern: '(kfree_skb_reason|kfree_skb\b).*\[2606:4700:4700::1001\]:8080'
 
+      - name: Test advanced IPv4
+        uses: ./.github/actions/pwru-test
+        with:
+          test-name: advanced-ipv4
+          pwru-pcap-filter: 'tcp[tcpflags] = tcp-syn'
+          traffic-setup: |
+            iptables -I OUTPUT 1 -m tcp --proto tcp --dst 1.0.0.2/32 --dport 8080 -j DROP
+            curl -vvv -sS --fail --connect-timeout "1" -o /dev/null http://1.0.0.2:8080 || true
+          expected-output-pattern: '(kfree_skb_reason|kfree_skb\b).*1.0.0.2:8080'
+
+      - name: Test advanced IPv6
+        uses: ./.github/actions/pwru-test
+        with:
+          test-name: advanced-ipv6
+          pwru-pcap-filter: 'ip6[53] & 0x3f = 0x2'
+          traffic-setup: |
+            ip6tables -I OUTPUT 1 -m tcp --proto tcp --dst 2606:4700:4700::1002 --dport 8080 -j DROP
+            curl -vvv -sS --fail --connect-timeout "1" -o /dev/null http://[2606:4700:4700::1002]:8080 || true
+          expected-output-pattern: '(kfree_skb_reason|kfree_skb\b).*\[2606:4700:4700::1002\]:8080'
+
+      - name: Test pcap filter using stack
+        uses: ./.github/actions/pwru-test
+        with:
+          test-name: pcap-filter-stack
+          pwru-pcap-filter: '(((ip[2:2] - ((ip[0]&0xf)<<2)) - ((tcp[12]&0xf0)>>2)) != 0)'
+          traffic-setup: curl -vvv -sS --fail --connect-timeout "1" -o /dev/null http://1.1.1.1 || true
+          expected-output-pattern: '1.1.1.1:80'
+
+      - name: Test --filter-track-skb
+        # DNAT
+        uses: ./.github/actions/pwru-test
+        with:
+          test-name: filter-track-skb
+          pwru-flags: --filter-track-skb
+          pwru-pcap-filter: dst host 10.10.20.99
+          traffic-setup: |
+            iptables -t nat -I OUTPUT 1 -d 10.10.20.99/32 -j DNAT --to-destination 10.10.14.2
+            curl -vvv -sS --fail --connect-timeout "1" -o /dev/null http://10.10.20.99:80 || true
+          expected-output-pattern: '10.10.14.2:80'
+
       - name: Fetch artifacts
         if: ${{ !success() }}
         uses: cilium/little-vm-helper@908ab1ff8a596a03cd5221a1f8602dc44c3f906d