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-rw-r--r--plugin/acl/acl_test.go396
1 files changed, 396 insertions, 0 deletions
diff --git a/plugin/acl/acl_test.go b/plugin/acl/acl_test.go
new file mode 100644
index 000000000..9b23edc53
--- /dev/null
+++ b/plugin/acl/acl_test.go
@@ -0,0 +1,396 @@
+package acl
+
+import (
+ "context"
+ "testing"
+
+ "github.com/coredns/coredns/plugin/test"
+
+ "github.com/caddyserver/caddy"
+ "github.com/miekg/dns"
+)
+
+type testResponseWriter struct {
+ test.ResponseWriter
+ Rcode int
+}
+
+func (t *testResponseWriter) setRemoteIP(ip string) {
+ t.RemoteIP = ip
+}
+
+// WriteMsg implement dns.ResponseWriter interface.
+func (t *testResponseWriter) WriteMsg(m *dns.Msg) error {
+ t.Rcode = m.Rcode
+ return nil
+}
+
+func NewTestControllerWithZones(input string, zones []string) *caddy.Controller {
+ ctr := caddy.NewTestController("dns", input)
+ for _, zone := range zones {
+ ctr.ServerBlockKeys = append(ctr.ServerBlockKeys, zone)
+ }
+ return ctr
+}
+
+func TestACLServeDNS(t *testing.T) {
+ type args struct {
+ domain string
+ sourceIP string
+ qtype uint16
+ }
+ tests := []struct {
+ name string
+ config string
+ zones []string
+ args args
+ wantRcode int
+ wantErr bool
+ }{
+ // IPv4 tests.
+ {
+ "Blacklist 1 BLOCKED",
+ `acl example.org {
+ block type A net 192.168.0.0/16
+ }`,
+ []string{},
+ args{
+ "www.example.org.",
+ "192.168.0.2",
+ dns.TypeA,
+ },
+ dns.RcodeRefused,
+ false,
+ },
+ {
+ "Blacklist 1 ALLOWED",
+ `acl example.org {
+ block type A net 192.168.0.0/16
+ }`,
+ []string{},
+ args{
+ "www.example.org.",
+ "192.167.0.2",
+ dns.TypeA,
+ },
+ dns.RcodeSuccess,
+ false,
+ },
+ {
+ "Blacklist 2 BLOCKED",
+ `
+ acl example.org {
+ block type * net 192.168.0.0/16
+ }`,
+ []string{},
+ args{
+ "www.example.org.",
+ "192.168.0.2",
+ dns.TypeAAAA,
+ },
+ dns.RcodeRefused,
+ false,
+ },
+ {
+ "Blacklist 3 BLOCKED",
+ `acl example.org {
+ block type A
+ }`,
+ []string{},
+ args{
+ "www.example.org.",
+ "10.1.0.2",
+ dns.TypeA,
+ },
+ dns.RcodeRefused,
+ false,
+ },
+ {
+ "Blacklist 3 ALLOWED",
+ `acl example.org {
+ block type A
+ }`,
+ []string{},
+ args{
+ "www.example.org.",
+ "10.1.0.2",
+ dns.TypeAAAA,
+ },
+ dns.RcodeSuccess,
+ false,
+ },
+ {
+ "Blacklist 4 Single IP BLOCKED",
+ `acl example.org {
+ block type A net 192.168.1.2
+ }`,
+ []string{},
+ args{
+ "www.example.org.",
+ "192.168.1.2",
+ dns.TypeA,
+ },
+ dns.RcodeRefused,
+ false,
+ },
+ {
+ "Blacklist 4 Single IP ALLOWED",
+ `acl example.org {
+ block type A net 192.168.1.2
+ }`,
+ []string{},
+ args{
+ "www.example.org.",
+ "192.168.1.3",
+ dns.TypeA,
+ },
+ dns.RcodeSuccess,
+ false,
+ },
+ {
+ "Whitelist 1 ALLOWED",
+ `acl example.org {
+ allow net 192.168.0.0/16
+ block
+ }`,
+ []string{},
+ args{
+ "www.example.org.",
+ "192.168.0.2",
+ dns.TypeA,
+ },
+ dns.RcodeSuccess,
+ false,
+ },
+ {
+ "Whitelist 1 REFUSED",
+ `acl example.org {
+ allow type * net 192.168.0.0/16
+ block
+ }`,
+ []string{},
+ args{
+ "www.example.org.",
+ "10.1.0.2",
+ dns.TypeA,
+ },
+ dns.RcodeRefused,
+ false,
+ },
+ {
+ "Fine-Grained 1 REFUSED",
+ `acl a.example.org {
+ block type * net 192.168.1.0/24
+ }`,
+ []string{"example.org"},
+ args{
+ "a.example.org.",
+ "192.168.1.2",
+ dns.TypeA,
+ },
+ dns.RcodeRefused,
+ false,
+ },
+ {
+ "Fine-Grained 1 ALLOWED",
+ `acl a.example.org {
+ block net 192.168.1.0/24
+ }`,
+ []string{"example.org"},
+ args{
+ "www.example.org.",
+ "192.168.1.2",
+ dns.TypeA,
+ },
+ dns.RcodeSuccess,
+ false,
+ },
+ {
+ "Fine-Grained 2 REFUSED",
+ `acl {
+ block net 192.168.1.0/24
+ }`,
+ []string{"example.org"},
+ args{
+ "a.example.org.",
+ "192.168.1.2",
+ dns.TypeA,
+ },
+ dns.RcodeRefused,
+ false,
+ },
+ {
+ "Fine-Grained 2 ALLOWED",
+ `acl {
+ block net 192.168.1.0/24
+ }`,
+ []string{"example.org"},
+ args{
+ "a.example.com.",
+ "192.168.1.2",
+ dns.TypeA,
+ },
+ dns.RcodeSuccess,
+ false,
+ },
+ {
+ "Fine-Grained 3 REFUSED",
+ `acl a.example.org {
+ block net 192.168.1.0/24
+ }
+ acl b.example.org {
+ block type * net 192.168.2.0/24
+ }`,
+ []string{"example.org"},
+ args{
+ "b.example.org.",
+ "192.168.2.2",
+ dns.TypeA,
+ },
+ dns.RcodeRefused,
+ false,
+ },
+ {
+ "Fine-Grained 3 ALLOWED",
+ `acl a.example.org {
+ block net 192.168.1.0/24
+ }
+ acl b.example.org {
+ block net 192.168.2.0/24
+ }`,
+ []string{"example.org"},
+ args{
+ "b.example.org.",
+ "192.168.1.2",
+ dns.TypeA,
+ },
+ dns.RcodeSuccess,
+ false,
+ },
+ // IPv6 tests.
+ {
+ "Blacklist 1 BLOCKED IPv6",
+ `acl example.org {
+ block type A net 2001:db8:abcd:0012::0/64
+ }`,
+ []string{},
+ args{
+ "www.example.org.",
+ "2001:db8:abcd:0012::1230",
+ dns.TypeA,
+ },
+ dns.RcodeRefused,
+ false,
+ },
+ {
+ "Blacklist 1 ALLOWED IPv6",
+ `acl example.org {
+ block type A net 2001:db8:abcd:0012::0/64
+ }`,
+ []string{},
+ args{
+ "www.example.org.",
+ "2001:db8:abcd:0013::0",
+ dns.TypeA,
+ },
+ dns.RcodeSuccess,
+ false,
+ },
+ {
+ "Blacklist 2 BLOCKED IPv6",
+ `acl example.org {
+ block type A
+ }`,
+ []string{},
+ args{
+ "www.example.org.",
+ "2001:0db8:85a3:0000:0000:8a2e:0370:7334",
+ dns.TypeA,
+ },
+ dns.RcodeRefused,
+ false,
+ },
+ {
+ "Blacklist 3 Single IP BLOCKED IPv6",
+ `acl example.org {
+ block type A net 2001:0db8:85a3:0000:0000:8a2e:0370:7334
+ }`,
+ []string{},
+ args{
+ "www.example.org.",
+ "2001:0db8:85a3:0000:0000:8a2e:0370:7334",
+ dns.TypeA,
+ },
+ dns.RcodeRefused,
+ false,
+ },
+ {
+ "Blacklist 3 Single IP ALLOWED IPv6",
+ `acl example.org {
+ block type A net 2001:0db8:85a3:0000:0000:8a2e:0370:7334
+ }`,
+ []string{},
+ args{
+ "www.example.org.",
+ "2001:0db8:85a3:0000:0000:8a2e:0370:7335",
+ dns.TypeA,
+ },
+ dns.RcodeSuccess,
+ false,
+ },
+ {
+ "Fine-Grained 1 REFUSED IPv6",
+ `acl a.example.org {
+ block type * net 2001:db8:abcd:0012::0/64
+ }`,
+ []string{"example.org"},
+ args{
+ "a.example.org.",
+ "2001:db8:abcd:0012:2019::0",
+ dns.TypeA,
+ },
+ dns.RcodeRefused,
+ false,
+ },
+ {
+ "Fine-Grained 1 ALLOWED IPv6",
+ `acl a.example.org {
+ block net 2001:db8:abcd:0012::0/64
+ }`,
+ []string{"example.org"},
+ args{
+ "www.example.org.",
+ "2001:db8:abcd:0012:2019::0",
+ dns.TypeA,
+ },
+ dns.RcodeSuccess,
+ false,
+ },
+ }
+
+ ctx := context.Background()
+ for _, tt := range tests {
+ t.Run(tt.name, func(t *testing.T) {
+ ctr := NewTestControllerWithZones(tt.config, tt.zones)
+ a, err := parse(ctr)
+ a.Next = test.NextHandler(dns.RcodeSuccess, nil)
+ if err != nil {
+ t.Errorf("Error: Cannot parse acl from config: %v", err)
+ return
+ }
+
+ w := &testResponseWriter{}
+ m := new(dns.Msg)
+ w.setRemoteIP(tt.args.sourceIP)
+ m.SetQuestion(tt.args.domain, tt.args.qtype)
+ _, err = a.ServeDNS(ctx, w, m)
+ if (err != nil) != tt.wantErr {
+ t.Errorf("Error: acl.ServeDNS() error = %v, wantErr %v", err, tt.wantErr)
+ return
+ }
+ if w.Rcode != tt.wantRcode {
+ t.Errorf("Error: acl.ServeDNS() Rcode = %v, want %v", w.Rcode, tt.wantRcode)
+ }
+ })
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-07-30 04:46:34 +0000