From 6ef6aa8d628b0c7eeeec37d0c5b43df6d87f8b33 Mon Sep 17 00:00:00 2001
From: Niklas Yann Wettengel <niyawe@niyawe.de>
Date: Wed, 12 Jul 2017 00:49:47 +0200
Subject: iptables: use template

---
 roles/configure_iptables/files/ip6tables.rules     | 43 -------------------
 roles/configure_iptables/files/iptables.rules      | 50 ----------------------
 roles/configure_iptables/tasks/main.yml            |  4 +-
 roles/configure_iptables/templates/ip6tables.rules | 37 ++++++++++++++++
 roles/configure_iptables/templates/iptables.rules  | 44 +++++++++++++++++++
 5 files changed, 83 insertions(+), 95 deletions(-)
 delete mode 100644 roles/configure_iptables/files/ip6tables.rules
 delete mode 100644 roles/configure_iptables/files/iptables.rules
 create mode 100644 roles/configure_iptables/templates/ip6tables.rules
 create mode 100644 roles/configure_iptables/templates/iptables.rules

(limited to 'roles')

diff --git a/roles/configure_iptables/files/ip6tables.rules b/roles/configure_iptables/files/ip6tables.rules
deleted file mode 100644
index 764e05b..0000000
--- a/roles/configure_iptables/files/ip6tables.rules
+++ /dev/null
@@ -1,43 +0,0 @@
-*filter
-:INPUT DROP [0:0]
-:FORWARD DROP [0:0]
-:OUTPUT ACCEPT [0:0]
--A INPUT -i lo -j ACCEPT
--A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
--A INPUT -p icmpv6 -j ACCEPT
-
-# SSH-Server
--A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
-# dns
--A INPUT -p tcp -m tcp --dport 53 -j ACCEPT
--A INPUT -p udp -m udp --dport 53 -j ACCEPT
-# ntp
--A INPUT -p udp -m udp --dport 123 -j ACCEPT
-# fastd
--A INPUT -p udp -m udp --dport 10010:10021 -j ACCEPT
-# wireguard_mesh
--A INPUT -p udp -m udp --dport 10110 -j ACCEPT
--A INPUT -p udp -m udp --dport 10112 -j ACCEPT
--A INPUT -p udp -m udp --dport 10114 -j ACCEPT
--A INPUT -p udp -m udp --dport 10116 -j ACCEPT
--A INPUT -p udp -m udp --dport 10118 -j ACCEPT
--A INPUT -p udp -m udp --dport 10120 -j ACCEPT
--A INPUT -s fdff:4157:bb::/48 -p gre -j ACCEPT
--A INPUT -s fdff:434f:43bb::/48 -p gre -j ACCEPT
--A INPUT -s fdff:454d:53bb::/48 -p gre -j ACCEPT
--A INPUT -s fdff:4b4f:bb::/48 -p gre -j ACCEPT
--A INPUT -s fdff:4d59:bb::/48 -p gre -j ACCEPT
--A INPUT -s fdff:5349:4dbb::/48 -p gre -j ACCEPT
-# MOSH
--A INPUT -p udp -m udp --dport 60000:61000 -j ACCEPT
-# LOG
--A INPUT -m limit --limit 2/min -j LOG --log-prefix "IP6Tables-Dropped input: " --log-level 4
-
--A FORWARD -i bataw -p udp --dport 10010:10021 -j REJECT
--A FORWARD -i batcoc -p udp --dport 10010:10021 -j REJECT
--A FORWARD -i batems -p udp --dport 10010:10021 -j REJECT
--A FORWARD -i batko -p udp --dport 10010:10021 -j REJECT
--A FORWARD -i batmy -p udp --dport 10010:10021 -j REJECT
--A FORWARD -i batsim -p udp --dport 10010:10021 -j REJECT
--A FORWARD -m limit --limit 2/min -j LOG --log-prefix "IP6Tables-Dropped forward: " --log-level 4
-COMMIT
diff --git a/roles/configure_iptables/files/iptables.rules b/roles/configure_iptables/files/iptables.rules
deleted file mode 100644
index 24b82e3..0000000
--- a/roles/configure_iptables/files/iptables.rules
+++ /dev/null
@@ -1,50 +0,0 @@
-*mangle
-:PREROUTING ACCEPT [0:0]
-:INPUT ACCEPT [0:0]
-:FORWARD ACCEPT [0:0]
-:OUTPUT ACCEPT [0:0]
-:POSTROUTING ACCEPT [0:0]
--A PREROUTING -i bataw -j MARK --set-xmark 0x1/0xffffffff
--A PREROUTING -i batcoc -j MARK --set-xmark 0x1/0xffffffff
--A PREROUTING -i batems -j MARK --set-xmark 0x1/0xffffffff
--A PREROUTING -i batko -j MARK --set-xmark 0x1/0xffffffff
--A PREROUTING -i batmy -j MARK --set-xmark 0x1/0xffffffff
--A PREROUTING -i batsim -j MARK --set-xmark 0x1/0xffffffff
-COMMIT
-*filter
-:INPUT DROP [0:0]
-:FORWARD DROP [0:0]
-:OUTPUT ACCEPT [0:0]
--A INPUT -s 127.0.0.1/32 -j ACCEPT
--A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
--A INPUT -p icmp -j ACCEPT
-
-# SSH-Server
--A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
-# dns
--A INPUT -p tcp -m tcp --dport 53 -j ACCEPT
--A INPUT -p udp -m udp --dport 53 -j ACCEPT
-#dhcp
--I INPUT -i bat0 -p udp --dport 67:68 --sport 67:68 -j ACCEPT
-# ntp
--A INPUT -p udp -m udp --dport 123 -j ACCEPT
-# fastd
--A INPUT -p udp -m udp --dport 10010:10021 -j ACCEPT
-# MOSH
--A INPUT -p udp -m udp --dport 60000:61000 -j ACCEPT
--A INPUT -m limit --limit 2/min -j LOG --log-prefix "IPTables-Dropped input: " --log-level 4
-
--A FORWARD -i bataw -p udp --dport 10010:10021 -j REJECT
--A FORWARD -i batcoc -p udp --dport 10010:10021 -j REJECT
--A FORWARD -i batems -p udp --dport 10010:10021 -j REJECT
--A FORWARD -i batko -p udp --dport 10010:10021 -j REJECT
--A FORWARD -i batmy -p udp --dport 10010:10021 -j REJECT
--A FORWARD -i batsim -p udp --dport 10010:10021 -j REJECT
--A FORWARD -m limit --limit 2/min -j LOG --log-prefix "IPTables-Dropped forward: " --log-level 4
-COMMIT
-*nat
-:PREROUTING ACCEPT [0:0]
-:INPUT ACCEPT [0:0]
-:OUTPUT ACCEPT [0:0]
-:POSTROUTING ACCEPT [0:0]
-COMMIT
diff --git a/roles/configure_iptables/tasks/main.yml b/roles/configure_iptables/tasks/main.yml
index e0e6625..846eefe 100644
--- a/roles/configure_iptables/tasks/main.yml
+++ b/roles/configure_iptables/tasks/main.yml
@@ -1,6 +1,6 @@
 ---
 - name: copy iptables.rules
-  copy:
+  template:
       src: iptables.rules
       dest: /etc/iptables/iptables.rules
   notify: reload iptables
@@ -12,7 +12,7 @@
       state: started
 
 - name: copy ip6tables.rules
-  copy:
+  template:
       src: ip6tables.rules
       dest: /etc/iptables/ip6tables.rules
   notify: reload ip6tables
diff --git a/roles/configure_iptables/templates/ip6tables.rules b/roles/configure_iptables/templates/ip6tables.rules
new file mode 100644
index 0000000..3ae179f
--- /dev/null
+++ b/roles/configure_iptables/templates/ip6tables.rules
@@ -0,0 +1,37 @@
+*filter
+:INPUT DROP [0:0]
+:FORWARD DROP [0:0]
+:OUTPUT ACCEPT [0:0]
+-A INPUT -i lo -j ACCEPT
+-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
+-A INPUT -p icmpv6 -j ACCEPT
+
+# SSH-Server
+-A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
+# dns
+-A INPUT -p tcp -m tcp --dport 53 -j ACCEPT
+-A INPUT -p udp -m udp --dport 53 -j ACCEPT
+# ntp
+-A INPUT -p udp -m udp --dport 123 -j ACCEPT
+# fastd
+-A INPUT -p udp -m udp --dport 10010:10021 -j ACCEPT
+# wireguard_mesh
+{% for site in sites %}
+-A INPUT -p udp -m udp --dport {{ site.wireguard_mesh_port }} -j ACCEPT
+-A INPUT -s {{ site.wireguard_mesh_address }}/48 -p gre -j ACCEPT
+{% endfor %}
+# wireguard_backbone
+-A INPUT -s fdff:4d59:4bbb::/48 -p gre -j ACCEPT
+{% for peer in wireguard_bb_peers %}
+-A INPUT -i bb{{ peer.name }} -p udp --dport 6696 -j ACCEPT
+{% endfor %}
+# MOSH
+-A INPUT -p udp -m udp --dport 60000:61000 -j ACCEPT
+# LOG
+-A INPUT -m limit --limit 2/min -j LOG --log-prefix "IP6Tables-Dropped input: " --log-level 4
+
+{% for site in sites %}
+-A FORWARD -i bat{{ site.name }} -p udp --dport 10010:10021 -j REJECT
+{% endfor %}
+-A FORWARD -m limit --limit 2/min -j LOG --log-prefix "IP6Tables-Dropped forward: " --log-level 4
+COMMIT
diff --git a/roles/configure_iptables/templates/iptables.rules b/roles/configure_iptables/templates/iptables.rules
new file mode 100644
index 0000000..2ae5610
--- /dev/null
+++ b/roles/configure_iptables/templates/iptables.rules
@@ -0,0 +1,44 @@
+*mangle
+:PREROUTING ACCEPT [0:0]
+:INPUT ACCEPT [0:0]
+:FORWARD ACCEPT [0:0]
+:OUTPUT ACCEPT [0:0]
+:POSTROUTING ACCEPT [0:0]
+{% for site in sites %}
+-A PREROUTING -i bat{{ site.name }} -j MARK --set-xmark 0x1/0xffffffff
+{% endfor %}
+COMMIT
+*filter
+:INPUT DROP [0:0]
+:FORWARD DROP [0:0]
+:OUTPUT ACCEPT [0:0]
+-A INPUT -s 127.0.0.1/32 -j ACCEPT
+-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
+-A INPUT -p icmp -j ACCEPT
+
+# SSH-Server
+-A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
+# dns
+-A INPUT -p tcp -m tcp --dport 53 -j ACCEPT
+-A INPUT -p udp -m udp --dport 53 -j ACCEPT
+#dhcp
+-I INPUT -i bat0 -p udp --dport 67:68 --sport 67:68 -j ACCEPT
+# ntp
+-A INPUT -p udp -m udp --dport 123 -j ACCEPT
+# fastd
+-A INPUT -p udp -m udp --dport 10010:10021 -j ACCEPT
+# MOSH
+-A INPUT -p udp -m udp --dport 60000:61000 -j ACCEPT
+-A INPUT -m limit --limit 2/min -j LOG --log-prefix "IPTables-Dropped input: " --log-level 4
+
+{% for site in sites %}
+-A FORWARD -i bat{{ site.name }} -p udp --dport 10010:10021 -j REJECT
+{% endfor %}
+-A FORWARD -m limit --limit 2/min -j LOG --log-prefix "IPTables-Dropped forward: " --log-level 4
+COMMIT
+*nat
+:PREROUTING ACCEPT [0:0]
+:INPUT ACCEPT [0:0]
+:OUTPUT ACCEPT [0:0]
+:POSTROUTING ACCEPT [0:0]
+COMMIT
-- 
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