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|
require 'spec_helper_acceptance'
os_name = fact('os.name')
os_release = fact('os.release.major')
sut_os = "#{os_name}-#{os_release}"
manage_initfile = case sut_os
when 'CentOS-6'
true
else
false
end
iptables_output = case sut_os
when 'Debian-10'
[
'-A INPUT -p tcp -m tcp --dport 22 -m comment --comment allow_acceptance_tests -j ACCEPT',
'-A INPUT -p tcp -m tcp --dport 80 -m comment --comment jump_http -j HTTP',
'-A HTTP -s 127.0.0.1/32 -p tcp -m tcp --dport 80 -m comment --comment allow_http_localhost -j ACCEPT'
]
else
[
'-A INPUT -p tcp -m comment --comment ["]*allow_acceptance_tests["]* -m tcp --dport 22 -j ACCEPT',
'-A INPUT -p tcp -m comment --comment ["]*jump_http["]* -m tcp --dport 80 -j HTTP',
'-A HTTP -s 127.0.0.1/32 -p tcp -m comment --comment ["]*allow_http_localhost["]* -m tcp --dport 80 -j ACCEPT'
]
end
iptables_output_custom = ['-A FORWARD -s 10.8.0.0/24 -p udp -m comment --comment "OpenVPN - FORWORD all udp traffic from network 10.8.0.0/24 to subchain OPENVPN_FORWORD_RULES" -j OPENVPN_FORWORD_RULES',
'-A OPENVPN_FORWORD_RULES -s 10.8.0.0/24 -i tun0 -o enp4s0 -p udp -m conntrack --ctstate NEW -j ACCEPT']
# When `install_method` is `vcsrepo` with `vcstag` >= `v2.5` ferm call "legacy"
# xtables tools because nft based tools are incompatible.
iptables_save_cmd = case sut_os
when 'Debian-10'
'iptables-legacy-save'
else
'iptables-save'
end
basic_manifest = %(
class { 'ferm':
manage_service => true,
manage_configfile => true,
manage_initfile => #{manage_initfile}, # CentOS-6 does not provide init script
forward_policy => 'DROP',
output_policy => 'ACCEPT',
input_policy => 'DROP',
rules => {
'allow_acceptance_tests' => {
chain => 'INPUT',
action => 'ACCEPT',
proto => tcp,
dport => 22,
},
},
ip_versions => ['ip'], #only ipv4 available with CI
)
describe 'ferm' do
context 'with basics settings and vcsrepo install_method' do
pp = [basic_manifest, "install_method => 'vcsrepo',}"].join("\n")
it 'works with no error' do
apply_manifest(pp, catch_failures: true)
end
it 'works idempotently' do
apply_manifest(pp, catch_changes: true)
end
describe package('ferm') do
it { is_expected.not_to be_installed }
end
describe service('ferm') do
it { is_expected.to be_running }
end
describe command("#{iptables_save_cmd} -t filter") do
its(:stdout) { is_expected.to match %r{.*filter.*:INPUT DROP.*:FORWARD DROP.*:OUTPUT ACCEPT.*}m }
its(:stdout) { is_expected.not_to match %r{state INVALID -j DROP} }
its(:stdout) { is_expected.to match %r{allow_acceptance_tests.*-j ACCEPT}m }
end
end
context 'with basics settings and default install_method' do
pp = [basic_manifest, '}'].join("\n")
it 'works with no error' do
apply_manifest(pp, catch_failures: true)
end
it 'works idempotently' do
apply_manifest(pp, catch_changes: true)
end
describe package('ferm') do
it { is_expected.to be_installed }
end
describe service('ferm') do
it { is_expected.to be_running }
end
describe command('iptables-save') do
its(:stdout) { is_expected.to match %r{.*filter.*:INPUT DROP.*:FORWARD DROP.*:OUTPUT ACCEPT.*}m }
its(:stdout) { is_expected.not_to match %r{state INVALID -j DROP} }
end
describe iptables do
it do
is_expected.to have_rule(iptables_output[0]). \
with_table('filter'). \
with_chain('INPUT')
end
end
context 'with custom chains' do
advanced_manifest = %(
ferm::chain { 'check-http':
chain => 'HTTP',
disable_conntrack => true,
log_dropped_packets => false,
}
ferm::rule { 'jump_http':
chain => 'INPUT',
action => 'HTTP',
proto => 'tcp',
dport => 80,
require => Ferm::Chain['check-http'],
}
ferm::rule { 'allow_http_localhost':
chain => 'HTTP',
action => 'ACCEPT',
proto => 'tcp',
dport => 80,
saddr => '127.0.0.1',
require => Ferm::Chain['check-http'],
}
)
pp = [basic_manifest, '}', advanced_manifest].join("\n")
it 'works with no error' do
apply_manifest(pp, catch_failures: true)
end
it 'works idempotently' do
apply_manifest(pp, catch_changes: true)
end
describe iptables do
it do
is_expected.to have_rule(iptables_output[1]). \
with_table('filter'). \
with_chain('INPUT')
end
it do
is_expected.to have_rule(iptables_output[2]). \
with_table('filter'). \
with_chain('HTTP')
end
end
end
context 'with dropping INVALID packets' do
pp2 = %(
class { 'ferm':
manage_service => true,
manage_configfile => true,
manage_initfile => #{manage_initfile}, # CentOS-6 does not provide init script
forward_policy => 'DROP',
output_policy => 'ACCEPT',
input_policy => 'DROP',
input_drop_invalid_packets_with_conntrack => true,
rules => {
'allow_acceptance_tests' => {
chain => 'INPUT',
action => 'ACCEPT',
proto => tcp,
dport => 22,
},
},
ip_versions => ['ip'], #only ipv4 available with CI
}
)
it 'works with no error' do
apply_manifest(pp2, catch_failures: true)
end
it 'works idempotently' do
apply_manifest(pp2, catch_changes: true)
end
describe service('ferm') do
it { is_expected.to be_running }
end
describe command('iptables-save') do
its(:stdout) { is_expected.to match %r{INPUT.*state INVALID -j DROP} }
end
end
end
context 'with custom chain using ferm DSL as content' do
advanced_manifest = %(
$my_rules = @(EOT)
chain OPENVPN_FORWORD_RULES {
proto udp {
interface tun0 {
outerface enp4s0 {
mod conntrack ctstate (NEW) saddr @ipfilter((10.8.0.0/24)) ACCEPT;
}
}
}
}
| EOT
ferm::chain{'OPENVPN_FORWORD_RULES':
chain => 'OPENVPN_FORWORD_RULES',
content => $my_rules,
}
ferm::rule { "OpenVPN - FORWORD all udp traffic from network 10.8.0.0/24 to subchain OPENVPN_FORWORD_RULES":
chain => 'FORWARD',
action => 'OPENVPN_FORWORD_RULES',
saddr => '10.8.0.0/24',
proto => 'udp',
}
)
pp = [basic_manifest, '}', advanced_manifest].join("\n")
it 'works with no error' do
apply_manifest(pp, catch_failures: true)
end
it 'works idempotently' do
apply_manifest(pp, catch_changes: true)
end
describe iptables do
it do
is_expected.to have_rule(iptables_output_custom[0]). \
with_table('filter'). \
with_chain('FORWARD')
end
it do
is_expected.to have_rule(iptables_output_custom[1]). \
with_table('filter'). \
with_chain('OPENVPN_FORWORD_RULES')
end
end
describe service('ferm') do
it { is_expected.to be_running }
end
describe command('iptables-save') do
its(:stdout) { is_expected.to match %r{FORWARD.*-j OPENVPN_FORWORD_RULES} }
end
end
end
|
