add blocklist maps display

just show_active_maps

Justfile

@@ -33,3 +33,13 @@ build:
 # Profile
 profile:
     CARGO_PROFILE_RELEASE_DEBUG=true cargo flamegraph  --root --bin oryx
+
+show_active_maps:
+    @for MAPTYPE in BLOCKLIST_IPV4 BLOCKLIST_IPV6;do \
+    map_ids=$(bpftool map show | grep "$MAPTYPE" | cut -f1 -d":" ); \
+    for map_id in $map_ids;do \
+    echo "$MAPTYPE($map_id)";\
+    bpftool map dump id $map_id -j | jq "." | python3 showmaps.py  2>/dev/null || echo "\tempty";\
+    done ;\
+    done
+

showmaps.py

@@ -0,0 +1,9 @@
+import sys,json;
+rules=json.loads(sys.stdin.read())
+for rule in rules:
+    k = '.'.join([str(int(x,16)) for x in rule['key']])
+    chunks =[rule['value'][idx: idx+2] for idx in range(0,len(rule['value']),2)]
+    ports = [int(f"{chunk[1]}{chunk[0]}".replace("0x",""),16) for chunk in chunks]
+    v = "[{}, ...]".format(', '.join([str(k) for k in ports if k!=0])) if not all(map(lambda x: x==0,ports)) else '*'
+    print(f"\t{k} : {v}")
+