命中策略后返回GIVEME，处理链接上后续的DNS请求

用户自定义没有符合的欺骗IP时，串联环境丢弃真实应答包

.gitlab-ci.yml

@@ -67,7 +67,6 @@ develop_build_release:
     BUILD_TYPE: RelWithDebInfo
     PACKAGE: 1
     UPLOAD_RPM: 1
-    ASAN_OPTION: ADDRESS
     TESTING_VERSION_BUILD: 1
     PULP3_REPO_NAME: tsg-testing-x86_64.el7
     PULP3_DIST_NAME: tsg-testing-x86_64.el7

ci/travis.sh

@@ -37,6 +37,11 @@ if [ -n "${INSTALL_DEPENDENCY_LIBRARY}" ]; then
 	yum install -y $INSTALL_DEPENDENCY_LIBRARY
 	source /etc/profile.d/framework.sh
 fi
+
+if [ $ASAN_OPTION ];then
+	source /opt/rh/devtoolset-7/enable
+fi
+
 mkdir build || true
 cd build
 

src/fw_dns_plug.cpp

@@ -156,7 +156,7 @@ static char fw_dns_action(struct streaminfo *a_stream, dns_info_t *dns_info, Maa
 			tmp_buff=NULL;
 		}
 		
-		return PROT_STATE_GIVEME;
+		return PROT_STATE_GIVEME|PROT_STATE_DROPPKT;
 	}
 	
 	item=cJSON_GetObjectItem(object, "method");
@@ -168,7 +168,7 @@ static char fw_dns_action(struct streaminfo *a_stream, dns_info_t *dns_info, Maa
 	switch(method_type)
 	{
 		case	TSG_METHOD_TYPE_DROP:
-			state=PROT_STATE_DROPME|PROT_STATE_DROPPKT;
+			state=PROT_STATE_GIVEME|PROT_STATE_DROPPKT;
 			break;
 		case	TSG_METHOD_TYPE_REDIRECTION:
 			if(g_fw_dns_plug_info.mode==0 && dns_info->hdr_info.qr==1) //mirror
@@ -243,8 +243,16 @@ static char fw_dns_action(struct streaminfo *a_stream, dns_info_t *dns_info, Maa
 					return -1;
 				}
 
-				senddir = MESA_dir_reverse(a_stream->routedir);
+                if(dns_info->hdr_info.qr==0)
+                {
+				    senddir = MESA_dir_reverse(a_stream->routedir);
+                }
+                else
+                {
+                    senddir = a_stream->routedir;
+                }
 				ret=MESA_inject_pkt(a_stream, (const char *)cheat_pkt_payload, payload_len, (const char *)a_packet, senddir);
+                
 				if(ret<0)
 				{
 					MESA_handle_runtime_log(g_fw_dns_plug_info.logger,
@@ -260,7 +268,7 @@ static char fw_dns_action(struct streaminfo *a_stream, dns_info_t *dns_info, Maa
 												);
 				}
 
-				state=PROT_STATE_DROPME|PROT_STATE_DROPPKT;
+				state=PROT_STATE_GIVEME|PROT_STATE_DROPPKT;
 			}
 			else
 			{
@@ -276,7 +284,7 @@ static char fw_dns_action(struct streaminfo *a_stream, dns_info_t *dns_info, Maa
 										dns_info->query_question.qtype,
 										(g_fw_dns_plug_info.level<RLOG_LV_FATAL ? printaddr(&a_stream->addr, a_stream->threadnum) : "")
 									);
-				state=PROT_STATE_GIVEME;
+				state=PROT_STATE_GIVEME|PROT_STATE_DROPPKT;
 			}
 			break;
 		default: