为刘梦岩2021-5-15提出的IPv6误命中bug，增加单元测试用例。该问题已在rulescan_VERSION_2020_12_20、MAAT_FRAME_VERSION_3_1_21_20210513重现。

test/maat_json.json

@@ -1997,6 +1997,41 @@
                     ]
                 }
             ]
+        },
+        {
+            "compile_id": 184,
+            "user_region": "APP_ID=6006740;Liumengyan-Bugreport-20210515",
+            "description": "Hulu",
+            "is_valid": "yes",
+            "do_blacklist": 0,
+            "do_log": 0,
+            "action": 0,
+            "service": 0,
+            "groups": [
+                {
+                    "group_name": "Untitled",
+                    "regions": [
+
+                        {
+                            "table_name": "IP_CONFIG",
+                            "table_type": "ip",
+                            "table_content": {
+                                "protocol": 0,
+                                "addr_type": "ipv6",
+                                "direction": "double",
+                                "src_ip": "::",
+                                "dst_ip": "2620:100:3000::",
+                                "src_port": "0",
+                                "dst_port": "0",
+                                "mask_src_port": "65535",
+                                "mask_src_ip": "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff",
+                                "mask_dst_port": "65535",
+                                "mask_dst_ip": "ffff:ffff:ff00:0000:0000:0000:0000:0000"
+                            }
+                        }
+                    ]
+                }
+            ]
         }
     ],
     "plugin_table": [
@@ -2040,7 +2075,8 @@
 				"101\t4\t192.168.30.99\t192.168.30.101\tSomething-like-json\t1",
 				"102\t4\t192.168.30.90\t192.168.30.128\tBigger-range-should-in-the-back\t1",
 				"103\t6\t2001:db8:1234::\t2001:db8:1235::\tBigger-range-should-in-the-back\t1",
-				"104\t6\t2001:db8:1234::1\t2001:db8:1234::5210\tSomething-like-json\t1"
+				"104\t6\t2001:db8:1234::1\t2001:db8:1234::5210\tSomething-like-json\t1",
+				"105\t6\t2620:100:3000::\t2620:0100:30ff:ffff:ffff:ffff:ffff:ffff\tBugreport-liumengyan-20210517\t1"
             ]
         },
         {

test/test_maatframe.cpp

@@ -292,7 +292,7 @@ TEST(IP_Plugin_Table, EX_DATA)
 								ip_plugin_EX_dup_cb,
 								0, &ip_plugin_ex_data_counter);
 	ASSERT_TRUE(ret>=0);
-	EXPECT_EQ(ip_plugin_ex_data_counter, 4);
+	EXPECT_EQ(ip_plugin_ex_data_counter, 5);
 	struct ip_address ipv4, ipv6;
 	struct ip_plugin_ud* result[4];
 	ipv4.ip_type=4;
@@ -315,6 +315,10 @@ TEST(IP_Plugin_Table, EX_DATA)
 	{
 		ip_plugin_EX_free_cb(0, (void**)&(result[i]), 0, NULL);
 	}
+	//Reproduce BugReport-Liumengyan-20210515
+	inet_pton(AF_INET6,"240e:97c:4010:104::17",&(ipv6.ipv6));
+	ret=Maat_ip_plugin_get_EX_data(g_feather, table_id, &ipv6, (void**)result, 4);
+	ASSERT_EQ(ret, 0);
 
 }
 
@@ -970,6 +974,30 @@ TEST(IPScan, IPv4_composition)
 	Maat_clean_status(&mid);
 	return;
 }
+TEST(IPScan, BugReport20210515)
+{
+	//By Liu Mengyan 2021-5-15
+	int table_id=0,ret=0;
+	struct Maat_rule_t result[4];
+	struct ipaddr ipv6_addr;
+	struct stream_tuple4_v6 v6_addr;
+	scan_status_t mid=NULL;
+	
+	ipv6_addr.addrtype=ADDR_TYPE_IPV6;
+	inet_pton(AF_INET6,"2409:8915:3430:7e7:8c9b:ff2a:7aa1:e74",&(v6_addr.saddr));
+	v6_addr.source=htons(41159);
+	inet_pton(AF_INET6,"240e:97c:4010:104::17",&(v6_addr.daddr));
+	v6_addr.dest=htons(7706);
+	ipv6_addr.v6=&v6_addr;
+	const char* table_name="IP_CONFIG";
+	table_id=Maat_table_register(g_feather, table_name);
+	EXPECT_GT(table_id, 0);
+
+	ret=Maat_scan_proto_addr(g_feather, table_id, &ipv6_addr, 6, result, 4, &mid, 0);
+	EXPECT_EQ(ret, 0);
+	Maat_clean_status(&mid);
+	return;
+}
 
 #define	TEST_NOTLogic	1