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path: root/satp/security-association_test.go
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//
// Copyright (c) 2017 anygone contributors (see AUTHORS file)
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice, this
//   list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above copyright notice,
//   this list of conditions and the following disclaimer in the documentation
//   and/or other materials provided with the distribution.
//
// * Neither the name of anygone nor the names of its
//   contributors may be used to endorse or promote products derived from
//   this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//

package satp

import (
	"crypto/rand"
	"net"
	"testing"
)

func TestSecurityAssociationNew(t *testing.T) {
	testvectors := []struct {
		numEndpoints uint
		initSeqOut   uint32
		initSeqIn    uint32
	}{
		{0, 0, 0},
		{1, 0, 0},
		{3, 12, 0},
		{17, 0, 144},
		{17, 124, 144},
	}

	for _, vector := range testvectors {
		sa := NewSecurityAssociation(nil, vector.numEndpoints, vector.initSeqOut, vector.initSeqIn)
		if sa == nil {
			t.Fatal("NewSecurityAssociation returned nil")
		}
		if sa.endpoints == nil {
			t.Fatal("endpoints must not be nil")
		}
		if uint(len(sa.endpoints)) != vector.numEndpoints {
			t.Fatalf("wrong number of endpoints is %d but should be %d", len(sa.endpoints), vector.numEndpoints)
		}
	}
}

func TestSecurityAssociationGenerate(t *testing.T) {
	var keymat [46]byte
	rand.Read(keymat[:])

	kd, err := NewAESCTRKeyDerivation(keymat[:32], keymat[32:], RoleLeft)
	if err != nil {
		t.Fatal("unexpected error:", err)
	}

	sa := NewSecurityAssociation(kd, 1, 0, 0)

	var out [32]byte
	err = sa.KeyGenerate(Outbound, UsageEncryptKey, 23, out[:32])
	if err != nil {
		t.Fatal("unexpected error:", err)
	}
	err = sa.KeyGenerate(Outbound, UsageEncryptSalt, 23, out[:14])
	if err != nil {
		t.Fatal("unexpected error:", err)
	}
}

func TestSecurityAssociationEndpointsEqual(t *testing.T) {
	local4Num444, _ := net.ResolveUDPAddr("udp4", "127.0.0.1:444")
	local4Name444, _ := net.ResolveUDPAddr("udp4", "localhost:444")
	local4Num1234, _ := net.ResolveUDPAddr("udp4", "127.0.0.1:1234")
	global4Num1234, _ := net.ResolveUDPAddr("udp4", "1.2.3.4:1234")
	global4Num444, _ := net.ResolveUDPAddr("udp4", "1.2.3.4:444")
	local6Num666, _ := net.ResolveUDPAddr("udp6", "[::1]:666")
	local6Name666, _ := net.ResolveUDPAddr("udp6", "localhost:666")
	local6Name1234, _ := net.ResolveUDPAddr("udp6", "localhost:1234")
	global6Num666, _ := net.ResolveUDPAddr("udp6", "[2a02::1234:1]:666")
	global6Num1234, _ := net.ResolveUDPAddr("udp6", "[2a02::1234:1]:1234")

	testvectors := []struct {
		a, b  *net.UDPAddr
		equal bool
	}{
		{nil, nil, true},
		{local4Num444, nil, false},
		{local4Num444, local4Num444, true},
		{local4Name444, local4Num444, true},
		{local4Name444, local4Num1234, false},
		{global4Num1234, local4Num1234, false},
		{global4Num1234, global4Num1234, true},
		{global4Num1234, global4Num444, false},
		{local6Num666, local6Num666, true},
		{local6Name666, local6Num666, true},
		{local6Name666, local6Name1234, false},
		{global6Num1234, local6Name1234, false},
		{global6Num1234, global6Num1234, true},
		{global6Num1234, global6Num666, false},
		{local4Num1234, local6Name1234, false},
	}

	for _, vector := range testvectors {
		if vector.equal {
			if !EndpointsEqual(vector.a, vector.b) {
				t.Fatalf("endpoints %v and %v should be equal but aren't", vector.a, vector.b)
			}
		} else {
			if EndpointsEqual(vector.a, vector.b) {
				t.Fatalf("endpoints %v and %v shouldn't be equal but are", vector.a, vector.b)
			}
		}
	}
}

// func TestSecurityAssociationEndpointUpdate(t *testing.T) {
// 	addr4, err := net.ResolveUDPAddr("udp4", "1.2.3.4:444")
// 	if err != nil {
// 		t.Fatal("unexpected error:", err)
// 	}

// 	addr6, err := net.ResolveUDPAddr("udp6", "[2a02::1]:666")
// 	if err != nil {
// 		t.Fatal("unexpected error:", err)
// 	}
// 	sa := NewSecurityAssociation(nil, 3, 0, 0)
// 	sa.EndpointUpdate(0, addr4)
// 	sa.EndpointUpdate(2, addr6)
// 	t.Logf("%v", sa.endpoints)
// }