From 2bc7f22198ba4b21db501d00f1924b3211273194 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Wed, 28 Sep 2022 16:30:24 +0200
Subject: import some stuff from helsinki ansible

---
 .../templates/interfaces/multihomed-base6.j2       | 15 ++++++++++++++
 .../templates/interfaces/multihomed-overlay.j2     |  5 +++--
 .../templates/interfaces/multihomed-overlay6.j2    | 23 ++++++++++++++++++++++
 3 files changed, 41 insertions(+), 2 deletions(-)
 create mode 100644 roles/vm/guest/network/templates/interfaces/multihomed-base6.j2
 create mode 100644 roles/vm/guest/network/templates/interfaces/multihomed-overlay6.j2

(limited to 'roles/vm/guest/network')

diff --git a/roles/vm/guest/network/templates/interfaces/multihomed-base6.j2 b/roles/vm/guest/network/templates/interfaces/multihomed-base6.j2
new file mode 100644
index 00000000..53d118b0
--- /dev/null
+++ b/roles/vm/guest/network/templates/interfaces/multihomed-base6.j2
@@ -0,0 +1,15 @@
+  address {{ interface.address6 }}
+{% for route in interface.static_routes6 | default([]) %}
+  up /bin/ip -6 route add {{ route.destination }} via {{ route.gateway }}{% if 'source' in route %} src {{ route.source }}{% endif %}{% if 'table' in route %} table {{ route.table }}{% endif %}{{ '' }}
+{% endfor %}
+{% if 'gateway6' in interface %}
+  up /bin/ip -6 route add default via {{ interface.gateway }} table default
+{% endif %}
+  up /bin/ip -6 rule add pref 42000 lookup default
+  down /bin/ip -6 rule del pref 42000
+{% if 'gateway6' in interface %}
+  down /bin/ip -6 route del default via {{ interface.gateway }} table default
+{% endif %}
+{% for route in interface.static_routes6 | default([])  | reverse %}
+  down /bin/ip -6 route del {{ route.destination }} via {{ route.gateway }}{% if 'source' in route %} src {{ route.source }}{% endif %}{% if 'table' in route %} table {{ route.table }}{% endif %}{{ '' }}
+{% endfor %}
diff --git a/roles/vm/guest/network/templates/interfaces/multihomed-overlay.j2 b/roles/vm/guest/network/templates/interfaces/multihomed-overlay.j2
index 3fcfbcc7..580abf88 100644
--- a/roles/vm/guest/network/templates/interfaces/multihomed-overlay.j2
+++ b/roles/vm/guest/network/templates/interfaces/multihomed-overlay.j2
@@ -1,10 +1,11 @@
   address {{ interface.address | ansible.utils.ipaddr('address') }}
   netmask {{ interface.address | ansible.utils.ipaddr('netmask') }}
+  #### overlays
 {% for overlay in interface.overlays %}
 {%   if 'name' in overlay %}
   ## {{ overlay.name }}
 {%   endif %}
-  up /bin/ip addr add dev $IFACE {{ overlay.address }}
+  up /bin/ip addr add dev $IFACE {{ overlay.address | ansible.utils.ipaddr('address') }}/32
   up /bin/ip route add default via {{ overlay.gateway }} src {{ overlay.address | ansible.utils.ipaddr('address') }} table {{ 200 + loop.index0 }}
   up /bin/ip rule add pref {{ 40000 + loop.index0 }} from {{ overlay.address | ansible.utils.ipaddr('address') }} lookup {{ 200 + loop.index0 }}
 {% endfor %}
@@ -15,5 +16,5 @@
 {%   endif %}
   down /bin/ip rule del pref {{ 40000 + loop.revindex0 }}
   down /bin/ip route del default via {{ overlay.gateway }} src {{ overlay.address | ansible.utils.ipaddr('address') }} table {{ 200 + loop.revindex0 }}
-  down /bin/ip addr del dev $IFACE {{ overlay.address }}
+  down /bin/ip addr del dev $IFACE {{ overlay.address | ansible.utils.ipaddr('address') }}/32
 {% endfor %}
diff --git a/roles/vm/guest/network/templates/interfaces/multihomed-overlay6.j2 b/roles/vm/guest/network/templates/interfaces/multihomed-overlay6.j2
new file mode 100644
index 00000000..0fd59882
--- /dev/null
+++ b/roles/vm/guest/network/templates/interfaces/multihomed-overlay6.j2
@@ -0,0 +1,23 @@
+  address {{ interface.address6 }}
+#### overlays
+{% for overlay in interface.overlays %}
+{%   if 'address6' in overlay %}
+{%     if 'name' in overlay %}
+  ## {{ overlay.name }}
+{%     endif %}
+  up /bin/ip -6 addr add dev $IFACE {{ overlay.address6 | ansible.utils.ipaddr('address') }}/128 nodad preferred_lft 0
+  up /bin/ip -6 route add default via {{ overlay.gateway6 }} src {{ overlay.address6 | ansible.utils.ipaddr('address') }} table {{ 200 + loop.index0 }}
+  up /bin/ip -6 rule add pref {{ 40000 + loop.index0 }} from {{ overlay.address6 | ansible.utils.ipaddr('address') }} lookup {{ 200 + loop.index0 }}
+{%   endif %}
+{% endfor %}
+  ##########
+{% for overlay in interface.overlays | reverse %}
+{%   if 'address6' in overlay %}
+{%     if 'name' in overlay %}
+  ## {{ overlay.name }}
+{%     endif %}
+  down /bin/ip rule del pref {{ 40000 + loop.revindex0 }}
+  down /bin/ip route del default via {{ overlay.gateway6 }} src {{ overlay.address6 | ansible.utils.ipaddr('address') }} table {{ 200 + loop.revindex0 }}
+  down /bin/ip addr del dev $IFACE {{ overlay.address6 | ansible.utils.ipaddr('address') }}/128
+{%   endif %}
+{% endfor %}
-- 
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