shaping: introduce downstream shaping

salt-pillar/upstream/anon1.sls

@@ -1,6 +1,6 @@
 upstream:
   interface: ipredator
   nat66-interface: ipredator
-  up-bandwidth: 10000
-  flow-keys: nfct-src
+  up-bandwidth: 10400
+  down-bandwidth: 180000
   flows: 4096

salt-pillar/upstream/upstream1.sls

@@ -1,6 +1,6 @@
 upstream:
   interface: up1
   nat66-interface: 6to4
-  up-bandwidth: 6200
-  flow-keys: nfct-src
+  up-bandwidth: 6000
+  down-bandwidth: 95000
   flows: 2048

salt-pillar/upstream/upstream2.sls

@@ -2,7 +2,7 @@ upstream:
   interface: up2
   nat66-interface: up2
   up-bandwidth: 12400
-  flow-keys: nfct-src
+  down-bandwidth: 195000
   flows: 2048
 
 port-forwarding:

salt/upstream/shaping

@@ -1,9 +1,9 @@
 #!/bin/sh
 
-if [ "$IFACE" = "{{ pillar['upstream']['interface'] }}" ]; then
+if [ "$IFACE" = "{{ iface }}" ]; then
    tc qdisc del dev $IFACE root    2> /dev/null >  /dev/null
    tc qdisc add dev $IFACE root       handle  1   hfsc default 1
-   tc class add dev $IFACE parent 1:  classid 1:1  hfsc sc rate {{ pillar['upstream']['up-bandwidth'] }}kbit ul rate {{ pillar['upstream']['up-bandwidth'] }}kbit
+   tc class add dev $IFACE parent 1:  classid 1:1  hfsc sc rate {{ bandwidth }}kbit ul rate {{ bandwidth }}kbit
    tc qdisc add dev $IFACE parent 1:1 handle 11: fq_codel flows  {{ pillar['upstream']['flows'] }}
-   tc filter add dev $IFACE parent 11: handle 11 protocol all flow hash keys {{ pillar['upstream']['flow-keys'] }} divisor {{ pillar['upstream']['flows'] }}
+   tc filter add dev $IFACE parent 11: handle 11 protocol all flow hash keys {{ flow_keys }} divisor {{ pillar['upstream']['flows'] }}
 fi

salt/upstream/shaping.sls

@@ -3,10 +3,30 @@
 iproute2:
   pkg.installed: []
 
-/etc/network/if-up.d/shaping:
+{%- if upstream.get('up-bandwidth') %}
+/etc/network/if-up.d/up-shaping:
   file.managed:
     - source: salt://upstream/shaping
     - template: 'jinja'
+    - context:
+        iface: {{ pillar['upstream']['interface'] }}
+        bandwidth: {{ pillar['upstream']['up-bandwidth'] }}
+        flow_keys: nfct-src
     - mode: 755
     - require:
         - pkg: iproute2
+{%- endif %}
+
+{%- if upstream.get('down-bandwidth') %}
+/etc/network/if-up.d/down-shaping:
+  file.managed:
+    - source: salt://upstream/shaping
+    - template: 'jinja'
+    - context:
+        iface: core
+        bandwidth: {{ pillar['upstream']['down-bandwidth'] }}
+        flow_keys: nfct-dst
+    - mode: 755
+    - require:
+        - pkg: iproute2
+{%- endif %}