Add http and translate for signal (#73)

* use BPF_NO_GLOBAL_DATA

to avoid error on old kernel versions or libbpf versions,
use BPF_NO_GLOBAL_DATA

* add translate of replace

* add socket

* add socket http impl

* improve userspace program

* add desc for http

* update translate to eng

* add ci for 32

.github/workflows/test-libbpf.yml

@@ -43,6 +43,10 @@ jobs:
       run: |
         make -C src/17-biopattern
         # sudo timeout -s 2 3 src/17-biopattern/biopattern || if [ $? = 124 ]; then exit 0; else exit $?; fi
+    - name: test 23 http
+      run: |
+        make -C src/23-http
+        # sudo timeout -s 2 3 src/23-http/sockfilter || if [ $? = 124 ]; then exit 0; else exit $?; fi
     - name: test 30 sslsniff
       run: |
         make -C src/30-sslsniff