[client] Add more userspace filter ACL test cases (#3730)

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Viktor Liu 2025-04-24 12:57:46 +02:00 committed by GitHub
parent 714beb6e3b
commit 85f92f8321
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@ -188,6 +188,281 @@ func TestPeerACLFiltering(t *testing.T) {
ruleAction: fw.ActionAccept,
shouldBeBlocked: true,
},
{
name: "Allow TCP traffic without port specification",
srcIP: "100.10.0.1",
dstIP: "100.10.0.100",
proto: fw.ProtocolTCP,
srcPort: 12345,
dstPort: 443,
ruleIP: "100.10.0.1",
ruleProto: fw.ProtocolTCP,
ruleAction: fw.ActionAccept,
shouldBeBlocked: false,
},
{
name: "Allow UDP traffic without port specification",
srcIP: "100.10.0.1",
dstIP: "100.10.0.100",
proto: fw.ProtocolUDP,
srcPort: 12345,
dstPort: 53,
ruleIP: "100.10.0.1",
ruleProto: fw.ProtocolUDP,
ruleAction: fw.ActionAccept,
shouldBeBlocked: false,
},
{
name: "TCP packet doesn't match UDP filter with same port",
srcIP: "100.10.0.1",
dstIP: "100.10.0.100",
proto: fw.ProtocolTCP,
srcPort: 12345,
dstPort: 443,
ruleIP: "100.10.0.1",
ruleProto: fw.ProtocolUDP,
ruleDstPort: &fw.Port{Values: []uint16{443}},
ruleAction: fw.ActionAccept,
shouldBeBlocked: true,
},
{
name: "UDP packet doesn't match TCP filter with same port",
srcIP: "100.10.0.1",
dstIP: "100.10.0.100",
proto: fw.ProtocolUDP,
srcPort: 12345,
dstPort: 443,
ruleIP: "100.10.0.1",
ruleProto: fw.ProtocolTCP,
ruleDstPort: &fw.Port{Values: []uint16{443}},
ruleAction: fw.ActionAccept,
shouldBeBlocked: true,
},
{
name: "ICMP packet doesn't match TCP filter",
srcIP: "100.10.0.1",
dstIP: "100.10.0.100",
proto: fw.ProtocolICMP,
ruleIP: "100.10.0.1",
ruleProto: fw.ProtocolTCP,
ruleAction: fw.ActionAccept,
shouldBeBlocked: true,
},
{
name: "ICMP packet doesn't match UDP filter",
srcIP: "100.10.0.1",
dstIP: "100.10.0.100",
proto: fw.ProtocolICMP,
ruleIP: "100.10.0.1",
ruleProto: fw.ProtocolUDP,
ruleAction: fw.ActionAccept,
shouldBeBlocked: true,
},
{
name: "Allow TCP traffic within port range",
srcIP: "100.10.0.1",
dstIP: "100.10.0.100",
proto: fw.ProtocolTCP,
srcPort: 12345,
dstPort: 8080,
ruleIP: "100.10.0.1",
ruleProto: fw.ProtocolTCP,
ruleDstPort: &fw.Port{IsRange: true, Values: []uint16{8000, 8100}},
ruleAction: fw.ActionAccept,
shouldBeBlocked: false,
},
{
name: "Block TCP traffic outside port range",
srcIP: "100.10.0.1",
dstIP: "100.10.0.100",
proto: fw.ProtocolTCP,
srcPort: 12345,
dstPort: 7999,
ruleIP: "100.10.0.1",
ruleProto: fw.ProtocolTCP,
ruleDstPort: &fw.Port{IsRange: true, Values: []uint16{8000, 8100}},
ruleAction: fw.ActionAccept,
shouldBeBlocked: true,
},
{
name: "Edge Case - Port at Range Boundary",
srcIP: "100.10.0.1",
dstIP: "100.10.0.100",
proto: fw.ProtocolTCP,
srcPort: 12345,
dstPort: 8100,
ruleIP: "100.10.0.1",
ruleProto: fw.ProtocolTCP,
ruleDstPort: &fw.Port{IsRange: true, Values: []uint16{8000, 8100}},
ruleAction: fw.ActionAccept,
shouldBeBlocked: false,
},
{
name: "UDP Port Range",
srcIP: "100.10.0.1",
dstIP: "100.10.0.100",
proto: fw.ProtocolUDP,
srcPort: 12345,
dstPort: 5060,
ruleIP: "100.10.0.1",
ruleProto: fw.ProtocolUDP,
ruleDstPort: &fw.Port{IsRange: true, Values: []uint16{5060, 5070}},
ruleAction: fw.ActionAccept,
shouldBeBlocked: false,
},
{
name: "Allow multiple destination ports",
srcIP: "100.10.0.1",
dstIP: "100.10.0.100",
proto: fw.ProtocolTCP,
srcPort: 12345,
dstPort: 8080,
ruleIP: "100.10.0.1",
ruleProto: fw.ProtocolTCP,
ruleDstPort: &fw.Port{Values: []uint16{80, 8080, 443}},
ruleAction: fw.ActionAccept,
shouldBeBlocked: false,
},
{
name: "Allow multiple source ports",
srcIP: "100.10.0.1",
dstIP: "100.10.0.100",
proto: fw.ProtocolTCP,
srcPort: 12345,
dstPort: 80,
ruleIP: "100.10.0.1",
ruleProto: fw.ProtocolTCP,
ruleSrcPort: &fw.Port{Values: []uint16{12345, 12346, 12347}},
ruleAction: fw.ActionAccept,
shouldBeBlocked: false,
},
// New drop test cases
{
name: "Drop TCP traffic from WG peer",
srcIP: "100.10.0.1",
dstIP: "100.10.0.100",
proto: fw.ProtocolTCP,
srcPort: 12345,
dstPort: 443,
ruleIP: "100.10.0.1",
ruleProto: fw.ProtocolTCP,
ruleDstPort: &fw.Port{Values: []uint16{443}},
ruleAction: fw.ActionDrop,
shouldBeBlocked: true,
},
{
name: "Drop UDP traffic from WG peer",
srcIP: "100.10.0.1",
dstIP: "100.10.0.100",
proto: fw.ProtocolUDP,
srcPort: 12345,
dstPort: 53,
ruleIP: "100.10.0.1",
ruleProto: fw.ProtocolUDP,
ruleDstPort: &fw.Port{Values: []uint16{53}},
ruleAction: fw.ActionDrop,
shouldBeBlocked: true,
},
{
name: "Drop ICMP traffic from WG peer",
srcIP: "100.10.0.1",
dstIP: "100.10.0.100",
proto: fw.ProtocolICMP,
ruleIP: "100.10.0.1",
ruleProto: fw.ProtocolICMP,
ruleAction: fw.ActionDrop,
shouldBeBlocked: true,
},
{
name: "Drop all traffic from WG peer",
srcIP: "100.10.0.1",
dstIP: "100.10.0.100",
proto: fw.ProtocolTCP,
srcPort: 12345,
dstPort: 443,
ruleIP: "100.10.0.1",
ruleProto: fw.ProtocolALL,
ruleAction: fw.ActionDrop,
shouldBeBlocked: true,
},
{
name: "Drop traffic from multiple source ports",
srcIP: "100.10.0.1",
dstIP: "100.10.0.100",
proto: fw.ProtocolTCP,
srcPort: 12345,
dstPort: 80,
ruleIP: "100.10.0.1",
ruleProto: fw.ProtocolTCP,
ruleSrcPort: &fw.Port{Values: []uint16{12345, 12346, 12347}},
ruleAction: fw.ActionDrop,
shouldBeBlocked: true,
},
{
name: "Drop multiple destination ports",
srcIP: "100.10.0.1",
dstIP: "100.10.0.100",
proto: fw.ProtocolTCP,
srcPort: 12345,
dstPort: 8080,
ruleIP: "100.10.0.1",
ruleProto: fw.ProtocolTCP,
ruleDstPort: &fw.Port{Values: []uint16{80, 8080, 443}},
ruleAction: fw.ActionDrop,
shouldBeBlocked: true,
},
{
name: "Drop TCP traffic within port range",
srcIP: "100.10.0.1",
dstIP: "100.10.0.100",
proto: fw.ProtocolTCP,
srcPort: 12345,
dstPort: 8080,
ruleIP: "100.10.0.1",
ruleProto: fw.ProtocolTCP,
ruleDstPort: &fw.Port{IsRange: true, Values: []uint16{8000, 8100}},
ruleAction: fw.ActionDrop,
shouldBeBlocked: true,
},
{
name: "Accept TCP traffic outside drop port range",
srcIP: "100.10.0.1",
dstIP: "100.10.0.100",
proto: fw.ProtocolTCP,
srcPort: 12345,
dstPort: 7999,
ruleIP: "100.10.0.1",
ruleProto: fw.ProtocolTCP,
ruleDstPort: &fw.Port{IsRange: true, Values: []uint16{8000, 8100}},
ruleAction: fw.ActionDrop,
shouldBeBlocked: false,
},
{
name: "Drop TCP traffic with source port range",
srcIP: "100.10.0.1",
dstIP: "100.10.0.100",
proto: fw.ProtocolTCP,
srcPort: 32100,
dstPort: 80,
ruleIP: "100.10.0.1",
ruleProto: fw.ProtocolTCP,
ruleSrcPort: &fw.Port{IsRange: true, Values: []uint16{32000, 33000}},
ruleAction: fw.ActionDrop,
shouldBeBlocked: true,
},
{
name: "Mixed rule - drop specific port but allow other ports",
srcIP: "100.10.0.1",
dstIP: "100.10.0.100",
proto: fw.ProtocolTCP,
srcPort: 12345,
dstPort: 443,
ruleIP: "100.10.0.1",
ruleProto: fw.ProtocolTCP,
ruleDstPort: &fw.Port{Values: []uint16{443}},
ruleAction: fw.ActionDrop,
shouldBeBlocked: true,
},
}
t.Run("Implicit DROP (no rules)", func(t *testing.T) {
@ -198,6 +473,28 @@ func TestPeerACLFiltering(t *testing.T) {
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
if tc.ruleAction == fw.ActionDrop {
// add general accept rule to test drop rule
// TODO: this only works because 0.0.0.0 is tested last, we need to implement order
rules, err := manager.AddPeerFiltering(
nil,
net.ParseIP("0.0.0.0"),
fw.ProtocolALL,
nil,
nil,
fw.ActionAccept,
"",
)
require.NoError(t, err)
require.NotEmpty(t, rules)
t.Cleanup(func() {
for _, rule := range rules {
require.NoError(t, manager.DeletePeerRule(rule))
}
})
}
rules, err := manager.AddPeerFiltering(
nil,
net.ParseIP(tc.ruleIP),
@ -543,26 +840,6 @@ func TestRouteACLFiltering(t *testing.T) {
},
shouldPass: true,
},
{
name: "Multiple source networks with mismatched protocol",
srcIP: "172.16.0.1",
dstIP: "192.168.1.100",
// Should not match TCP rule
proto: fw.ProtocolUDP,
srcPort: 12345,
dstPort: 80,
rule: rule{
sources: []netip.Prefix{
netip.MustParsePrefix("100.10.0.0/16"),
netip.MustParsePrefix("172.16.0.0/16"),
},
dest: netip.MustParsePrefix("192.168.1.0/24"),
proto: fw.ProtocolTCP,
dstPort: &fw.Port{Values: []uint16{80}},
action: fw.ActionAccept,
},
shouldPass: false,
},
{
name: "Allow multiple destination ports",
srcIP: "100.10.0.1",
@ -798,10 +1075,132 @@ func TestRouteACLFiltering(t *testing.T) {
},
shouldPass: false,
},
{
name: "Accept TCP traffic outside drop port range",
srcIP: "100.10.0.1",
dstIP: "192.168.1.100",
proto: fw.ProtocolTCP,
srcPort: 12345,
dstPort: 7999,
rule: rule{
sources: []netip.Prefix{netip.MustParsePrefix("100.10.0.0/16")},
dest: netip.MustParsePrefix("192.168.1.0/24"),
proto: fw.ProtocolTCP,
dstPort: &fw.Port{IsRange: true, Values: []uint16{8000, 8100}},
action: fw.ActionDrop,
},
shouldPass: true,
},
{
name: "Allow TCP traffic without port specification",
srcIP: "100.10.0.1",
dstIP: "192.168.1.100",
proto: fw.ProtocolTCP,
srcPort: 12345,
dstPort: 443,
rule: rule{
sources: []netip.Prefix{netip.MustParsePrefix("100.10.0.0/16")},
dest: netip.MustParsePrefix("192.168.1.0/24"),
proto: fw.ProtocolTCP,
action: fw.ActionAccept,
},
shouldPass: true,
},
{
name: "Allow UDP traffic without port specification",
srcIP: "100.10.0.1",
dstIP: "192.168.1.100",
proto: fw.ProtocolUDP,
srcPort: 12345,
dstPort: 53,
rule: rule{
sources: []netip.Prefix{netip.MustParsePrefix("100.10.0.0/16")},
dest: netip.MustParsePrefix("192.168.1.0/24"),
proto: fw.ProtocolUDP,
action: fw.ActionAccept,
},
shouldPass: true,
},
{
name: "TCP packet doesn't match UDP filter with same port",
srcIP: "100.10.0.1",
dstIP: "192.168.1.100",
proto: fw.ProtocolTCP,
srcPort: 12345,
dstPort: 80,
rule: rule{
sources: []netip.Prefix{netip.MustParsePrefix("100.10.0.0/16")},
dest: netip.MustParsePrefix("192.168.1.0/24"),
proto: fw.ProtocolUDP,
dstPort: &fw.Port{Values: []uint16{80}},
action: fw.ActionAccept,
},
shouldPass: false,
},
{
name: "UDP packet doesn't match TCP filter with same port",
srcIP: "100.10.0.1",
dstIP: "192.168.1.100",
proto: fw.ProtocolUDP,
srcPort: 12345,
dstPort: 80,
rule: rule{
sources: []netip.Prefix{netip.MustParsePrefix("100.10.0.0/16")},
dest: netip.MustParsePrefix("192.168.1.0/24"),
proto: fw.ProtocolTCP,
dstPort: &fw.Port{Values: []uint16{80}},
action: fw.ActionAccept,
},
shouldPass: false,
},
{
name: "ICMP packet doesn't match TCP filter",
srcIP: "100.10.0.1",
dstIP: "192.168.1.100",
proto: fw.ProtocolICMP,
rule: rule{
sources: []netip.Prefix{netip.MustParsePrefix("100.10.0.0/16")},
dest: netip.MustParsePrefix("192.168.1.0/24"),
proto: fw.ProtocolTCP,
action: fw.ActionAccept,
},
shouldPass: false,
},
{
name: "ICMP packet doesn't match UDP filter",
srcIP: "100.10.0.1",
dstIP: "192.168.1.100",
proto: fw.ProtocolICMP,
rule: rule{
sources: []netip.Prefix{netip.MustParsePrefix("100.10.0.0/16")},
dest: netip.MustParsePrefix("192.168.1.0/24"),
proto: fw.ProtocolUDP,
action: fw.ActionAccept,
},
shouldPass: false,
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
if tc.rule.action == fw.ActionDrop {
// add general accept rule to test drop rule
rule, err := manager.AddRouteFiltering(
nil,
[]netip.Prefix{netip.MustParsePrefix("0.0.0.0/0")},
netip.MustParsePrefix("0.0.0.0/0"),
fw.ProtocolALL,
nil,
nil,
fw.ActionAccept,
)
require.NoError(t, err)
require.NotNil(t, rule)
t.Cleanup(func() {
require.NoError(t, manager.DeleteRouteRule(rule))
})
}
rule, err := manager.AddRouteFiltering(
nil,
tc.rule.sources,