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require 'spec_helper'
describe 'ferm::rule', type: :define do
on_supported_os.each do |os, facts|
context "on #{os} " do
let :facts do
facts
end
let :pre_condition do
'include ferm'
end
context 'without policy or action' do
let(:title) { 'filter-ssh' }
let :params do
{
chain: 'INPUT',
proto: 'tcp',
dport: 22,
saddr: '127.0.0.1'
}
end
it { is_expected.to compile.and_raise_error(%r{Exactly one of "action" or the deprecated "policy" param is required}) }
end
context 'with both policy and action' do
let(:title) { 'filter-ssh' }
let :params do
{
chain: 'INPUT',
policy: 'ACCEPT',
action: 'ACCEPT',
proto: 'tcp',
dport: 22,
saddr: '127.0.0.1'
}
end
it { is_expected.to compile.and_raise_error(%r{Cannot specify both policy and action}) }
end
context 'without a specific interface using legacy policy param' do
let(:title) { 'filter-ssh' }
let :params do
{
chain: 'INPUT',
policy: 'ACCEPT',
proto: 'tcp',
dport: 22,
saddr: '127.0.0.1'
}
end
it { is_expected.to compile.with_all_deps }
it { is_expected.to contain_concat__fragment('INPUT-filter-ssh').with_content("mod comment comment 'filter-ssh' proto tcp dport 22 saddr @ipfilter((127.0.0.1)) ACCEPT;\n") }
end
context 'without a specific interface' do
let(:title) { 'filter-ssh' }
let :params do
{
chain: 'INPUT',
action: 'ACCEPT',
proto: 'tcp',
dport: 22,
saddr: '127.0.0.1'
}
end
it { is_expected.to compile.with_all_deps }
it { is_expected.to contain_concat__fragment('INPUT-filter-ssh').with_content("mod comment comment 'filter-ssh' proto tcp dport 22 saddr @ipfilter((127.0.0.1)) ACCEPT;\n") }
it { is_expected.to contain_concat__fragment('filter-INPUT-config-include') }
it { is_expected.to contain_concat__fragment('filter-FORWARD-config-include') }
it { is_expected.to contain_concat__fragment('filter-OUTPUT-config-include') }
end
context 'with a specific interface' do
let(:title) { 'filter-ssh' }
let :params do
{
chain: 'INPUT',
action: 'ACCEPT',
proto: 'tcp',
dport: 22,
saddr: '127.0.0.1',
interface: 'eth0'
}
end
it { is_expected.to compile.with_all_deps }
it { is_expected.to contain_concat__fragment('INPUT-eth0-filter-ssh').with_content(" mod comment comment 'filter-ssh' proto tcp dport 22 saddr @ipfilter((127.0.0.1)) ACCEPT;\n") }
it { is_expected.to contain_concat__fragment('INPUT-eth0-aaa').with_content("interface eth0 {\n") }
it { is_expected.to contain_concat__fragment('INPUT-eth0-zzz').with_content("}\n") }
end
context 'with a specific interface using array for daddr' do
let(:title) { 'filter-ssh' }
let :params do
{
chain: 'INPUT',
action: 'ACCEPT',
proto: 'tcp',
dport: 22,
daddr: ['127.0.0.1', '123.123.123.123', ['10.0.0.1', '10.0.0.2']],
interface: 'eth0'
}
end
it { is_expected.to compile.with_all_deps }
it { is_expected.to contain_concat__fragment('INPUT-eth0-filter-ssh').with_content(" mod comment comment 'filter-ssh' proto tcp dport 22 daddr @ipfilter((127.0.0.1 123.123.123.123 10.0.0.1 10.0.0.2)) ACCEPT;\n") }
it { is_expected.to contain_concat__fragment('INPUT-eth0-aaa').with_content("interface eth0 {\n") }
it { is_expected.to contain_concat__fragment('INPUT-eth0-zzz').with_content("}\n") }
end
context 'without a specific interface using array for proto' do
let(:title) { 'filter-consul' }
let :params do
{
chain: 'INPUT',
action: 'ACCEPT',
proto: %w[tcp udp],
dport: [8301, 8302],
saddr: '127.0.0.1'
}
end
it { is_expected.to compile.with_all_deps }
it { is_expected.to contain_concat__fragment('INPUT-filter-consul').with_content("mod comment comment 'filter-consul' proto (tcp udp) mod multiport destination-ports (8301 8302) saddr @ipfilter((127.0.0.1)) ACCEPT;\n") }
it { is_expected.to contain_concat__fragment('filter-INPUT-config-include') }
it { is_expected.to contain_concat__fragment('filter-FORWARD-config-include') }
it { is_expected.to contain_concat__fragment('filter-OUTPUT-config-include') }
end
context 'with a valid destination-port range' do
let(:title) { 'filter-portrange' }
let :params do
{
chain: 'INPUT',
action: 'ACCEPT',
proto: 'tcp',
dport: '20000:25000',
saddr: '127.0.0.1'
}
end
it { is_expected.to compile.with_all_deps }
it { is_expected.to contain_concat__fragment('INPUT-filter-portrange').with_content("mod comment comment 'filter-portrange' proto tcp dport 20000:25000 saddr @ipfilter((127.0.0.1)) ACCEPT;\n") }
it { is_expected.to contain_concat__fragment('filter-INPUT-config-include') }
it { is_expected.to contain_concat__fragment('filter-FORWARD-config-include') }
it { is_expected.to contain_concat__fragment('filter-OUTPUT-config-include') }
end
context 'with a malformed source-port range' do
let(:title) { 'filter-malformed-portrange' }
let :params do
{
chain: 'INPUT',
action: 'ACCEPT',
proto: 'tcp',
sport: '25000:20000',
saddr: '127.0.0.1'
}
end
it { is_expected.to compile.and_raise_error(%r{Lower port number of the port range is larger than upper. 25000:20000}) }
end
context 'with an invalid destination-port range' do
let(:title) { 'filter-invalid-portrange' }
let :params do
{
chain: 'INPUT',
action: 'ACCEPT',
proto: 'tcp',
dport: '50000:65538',
saddr: '127.0.0.1'
}
end
it { is_expected.to compile.and_raise_error(%r{The data type should be 'Tuple\[Stdlib::Port, Stdlib::Port\]', not 'Tuple\[Integer\[50000, 50000\], Integer\[65538, 65538\]\]'. The data is \[50000, 65538\]}) }
end
context 'with an invalid destination-port string' do
let(:title) { 'filter-invalid-portnumber' }
let :params do
{
chain: 'INPUT',
action: 'ACCEPT',
proto: 'tcp',
dport: '65538',
saddr: '127.0.0.1'
}
end
it { is_expected.to compile.and_raise_error(%r{parameter 'dport' expects a Ferm::Port .* value, got String}) }
end
context 'with an invalid source-port number' do
let(:title) { 'filter-invalid-portnumber' }
let :params do
{
chain: 'INPUT',
action: 'ACCEPT',
proto: 'tcp',
sport: 65_538,
saddr: '127.0.0.1'
}
end
it { is_expected.to compile.and_raise_error(%r{parameter 'sport' expects a Ferm::Port .* value, got Integer}) }
end
context 'with jumping to custom chains' do
# create custom chain
let(:pre_condition) do
'include ferm ;
ferm::chain{"check-ssh":
chain => "SSH",
disable_conntrack => true,
log_dropped_packets => false,
}'
end
let(:title) { 'filter-ssh' }
let :params do
{
chain: 'INPUT',
action: 'SSH',
proto: 'tcp',
dport: 22
}
end
it { is_expected.to compile.with_all_deps }
it { is_expected.to contain_concat__fragment('filter-SSH-policy') }
it do
is_expected.to contain_concat__fragment('INPUT-filter-ssh').\
with_content("mod comment comment 'filter-ssh' proto tcp dport 22 jump SSH;\n"). \
that_requires('Ferm::Chain[check-ssh]')
end
it { is_expected.to contain_concat__fragment('filter-INPUT-config-include') }
if facts[:os]['name'] == 'Debian'
it { is_expected.to contain_concat('/etc/ferm/ferm.d/chains/filter-SSH.conf') }
else
it { is_expected.to contain_concat('/etc/ferm.d/chains/filter-SSH.conf') }
end
end
context 'definining rules in custom chains' do
# create custom chain
let(:pre_condition) do
'include ferm ;
ferm::chain{"check-ssh":
chain => "SSH",
disable_conntrack => true,
log_dropped_packets => false,
}'
end
let(:title) { 'allow-ssh-localhost' }
let :params do
{
chain: 'SSH',
action: 'ACCEPT',
proto: 'tcp',
dport: 22,
saddr: '127.0.0.1'
}
end
it { is_expected.to compile.with_all_deps }
it { is_expected.to contain_concat__fragment('SSH-allow-ssh-localhost').with_content("mod comment comment 'allow-ssh-localhost' proto tcp dport 22 saddr @ipfilter((127.0.0.1)) ACCEPT;\n") }
it { is_expected.to contain_concat__fragment('filter-INPUT-config-include') }
it { is_expected.to contain_concat__fragment('filter-SSH-config-include') }
end
end
end
end
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