add fake promisc setup scripts for tera mac-flipping.

roles/sapp/files/tera_fake_promisc_setup.conf

@@ -0,0 +1,2 @@
+[Service]
+ExecStartPre=/bin/bash tera_fake_promisc_setup.sh

roles/sapp/files/tera_fake_promisc_setup.sh

@@ -0,0 +1,4 @@
+set -ex
+dp_adapter_ether_addr=$(ifconfig ens1f2 | grep ether | awk '{print $2}')
+bpf_rule="ether dst $dp_adapter_ether_addr or ether dst 02:42:c0:a8:fd:03 or ether dst 02:42:c0:a8:fd:83 or ether dst 02:42:c0:a8:fd:82"
+sed -i "/BSD_packet_filter=/s/=.*/=\"$bpf_rule\"/" etc/sapp.toml

roles/sapp/tasks/main.yml

@@ -70,6 +70,7 @@
     dest: /home/mesasoft/sapp_run/etc/vlan_flipping_map.conf
   when: tsg_access_type == 2
 
+
 - name: "Template sapp.service destination server"
   template:
     src: "{{ role_path }}/templates/sapp.service.j2"
@@ -82,6 +83,20 @@
     dest: /etc/systemd/system/sapp.service.d/
     mode: 0644
 
+- name: "copy fake promisc tools for tera mode - service file"
+  copy:
+    src: "{{ role_path }}/files/tera_fake_promisc_setup.conf"
+    dest: /etc/systemd/system/sapp.service.d/
+    mode: 0644
+  when: tsg_access_type == 2
+
+- name: "copy fake promisc tools for tera mode - scripts"
+  copy:
+    src: "{{ role_path }}/files/tera_fake_promisc_setup.sh"
+    dest: /home/mesasoft/sapp_run/tera_fake_promisc_setup.sh
+    mode: 0755
+  when: tsg_access_type == 2
+ 
 - name: "enable sapp"
   systemd:
     name: sapp

roles/sapp/templates/sapp.toml.j2

@@ -40,6 +40,8 @@ dictator_enable=0
     asymmetric_addr_layer_cfg_file="etc/asymmetric_addr_layer.conf"
     prune_inject_layer_cfg_file="etc/prune_inject_layer.conf"
 
+    [packet_io.feature]
+	
 	{% if tsg_access_type == 4 %}
 	### note, used to represent inbound or outbound direction value,
 	### because it comes from Third party device, so it needs to be specified manually,