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package dhcpv6
import (
"reflect"
"testing"
)
func TestRelayMsgParseOptRelayMsg(t *testing.T) {
opt, err := ParseOptRelayMsg([]byte{
1, // SOLICIT
0xaa, 0xbb, 0xcc, // transaction ID
0, 8, // option: elapsed time
0, 2, // option length
0, 0, // option value
})
if err != nil {
t.Fatal(err)
}
if code := opt.Code(); code != OPTION_RELAY_MSG {
t.Fatalf("Invalid option code. Expected OPTION_RELAY_MSG (%v), got %v",
OPTION_RELAY_MSG, code,
)
}
}
func TestRelayMsgOptionsFromBytes(t *testing.T) {
opts, err := OptionsFromBytes([]byte{
0, 9, // option: relay message
0, 10, // relayed message length
1, // SOLICIT
0xaa, 0xbb, 0xcc, // transaction ID
0, 8, // option: elapsed time
0, 2, // option length
0, 0, // option value
})
if err != nil {
t.Fatal(err)
}
if len(opts) != 1 {
t.Fatalf("Invalid number of options. Expected 1, got %v", len(opts))
}
opt := opts[0]
if code := opt.Code(); code != OPTION_RELAY_MSG {
t.Fatalf("Invalid option code. Expected OPTION_RELAY_MSG (%v), got %v",
OPTION_RELAY_MSG, code,
)
}
}
func TestRelayMsgParseOptRelayMsgSingleEncapsulation(t *testing.T) {
d, err := FromBytes([]byte{
12, // RELAY-FORW
0, // hop count
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // linkAddr
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, // peerAddr
0, 9, // option: relay message
0, 10, // relayed message length
1, // SOLICIT
0xaa, 0xbb, 0xcc, // transaction ID
0, 8, // option: elapsed time
0, 2, // option length
0x11, 0x22, // option value
})
if err != nil {
t.Fatal(err)
}
r, ok := d.(*DHCPv6Relay)
if !ok {
t.Fatalf("Invalid DHCPv6 type. Expected DHCPv6Relay, got %v",
reflect.TypeOf(d),
)
}
if mType := r.Type(); mType != RELAY_FORW {
t.Fatalf("Invalid messge type for relay. Expected %v, got %v", RELAY_FORW, mType)
}
if len(r.options) != 1 {
t.Fatalf("Invalid number of options. Expected 1, got %v", len(r.options))
}
if code := r.options[0].Code(); code != OPTION_RELAY_MSG {
t.Fatalf("Invalid option code. Expected OPTION_RELAY_MSG (%v), got %v",
OPTION_RELAY_MSG, code,
)
}
opt := r.options[0]
ro, ok := opt.(*OptRelayMsg)
if !ok {
t.Fatalf("Invalid option type. Expected OptRelayMsg, got %v",
reflect.TypeOf(ro),
)
}
innerDHCP, ok := ro.RelayMessage().(*DHCPv6Message)
if !ok {
t.Fatalf("Invalid relay message type. Expected DHCPv6Message, got %v",
reflect.TypeOf(innerDHCP),
)
}
if dType := innerDHCP.Type(); dType != SOLICIT {
t.Fatal("Invalid inner DHCP type. Expected SOLICIT (%v), got %v",
SOLICIT, dType,
)
}
if tID := innerDHCP.TransactionID(); tID != 0xaabbcc {
t.Fatal("Invalid inner DHCP transaction ID. Expected 0xaabbcc, got %v", tID)
}
if len(innerDHCP.options) != 1 {
t.Fatal("Invalid inner DHCP options length. Expected 1, got %v", len(innerDHCP.options))
}
innerOpt := innerDHCP.options[0]
eto, ok := innerOpt.(*OptElapsedTime)
if !ok {
t.Fatal("Invalid inner option type. Expected OptElapsedTime, got %v",
reflect.TypeOf(innerOpt),
)
}
if eTime := eto.ElapsedTime(); eTime != 0x1122 {
t.Fatal("Invalid elapsed time. Expected 0x1122, got 0x%04x", eTime)
}
}
func TestSample(t *testing.T) {
// Nested relay message. This test only checks if it parses correctly, but
// could/should be extended to check all the fields like done in other tests
buf := []byte{
12, // relay
1, // hop count
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // linkAddr
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // peerAddr
// relay msg
0, 9, // opt relay msg
0, 66, // opt len
// relay fwd
12, // relay
0, // hop count
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // linkAddr
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // peerAddr
// opt interface ID
0, 18, // interface id
0, 6, // opt len
0xba, 0xbe, 0xb1, 0xb0, 0xbe, 0xbe, // opt value
// relay msg
0, 9, // relay msg
0, 18, // msg len
// dhcpv6 msg
1, // solicit
0xaa, 0xbb, 0xcc, // transaction ID
// client ID
0, 1, // opt client id
0, 10, // opt len
0, 3, // duid type
0, 1, // hw type
5, 6, 7, 8, 9, 10, // duid value
}
_, err := FromBytes(buf)
if err != nil {
t.Fatal(err)
}
}
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