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library/roles/iptables: Support for blacklists of ip/networks. Optionally with associated protocol, source port and destination port.

This commit is contained in:
Andrea Dell'Amico 2015-10-23 16:01:53 +02:00
parent 6991b1abc4
commit aa1ad48c46
2 changed files with 15 additions and 0 deletions
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1
iptables/defaults/main.yml
View File

@ -40,6 +40,7 @@
#iptables_default_policy: REJECT
iptables_default_policy: ACCEPT
iptables_banned_default_policy: DROP
ganglia_enabled: False
nagios_enabled: False
iptables_open_all_to_isti_nets: False

14
iptables/templates/iptables-rules.v4.j2
View File

@ -9,6 +9,20 @@
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
#
# We manage the banned IP/networks list before anything else
{% if iptables_banlist is defined %}
{% for obj in iptables_banlist %}
{% if obj.proto is defined and obj.destport is defined and obj.sourceport is defined %}
-A INPUT -m {{ obj.proto }} -p {{ obj.proto }} -s {{ obj.source }} --sport {{ obj.sourceport }} --dport {{ obj.destport }} -j {{ iptables_banned_default_policy }}
{% elif obj.proto is defined and obj.destport is defined %}
-A INPUT -m {{ obj.proto }} -p {{ obj.proto }} -s {{ obj.source }} --dport {{ obj.destport }} -j {{ iptables_banned_default_policy }}
{% elif obj.proto is defined %}
-A INPUT -m {{ obj.proto }} -p {{ obj.proto }} -s {{ obj.source }} -j {{ iptables_banned_default_policy }}
{% else %}
-A INPUT -s {{ obj.source }} -j {{ iptables_banned_default_policy }}
{% endif %}
{% endfor %}
{% endif %}
{% if iptables_managed_ssh is defined and iptables_managed_ssh %}
{% if iptables_ssh_allowed_hosts is defined %}
# ssh is not open to all, even if we use denyhosts to prevent unauthorized accesses