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unit test done, send/recv routing works

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This commit is contained in:
mykola2312 2025-01-10 06:25:57 +02:00
parent 5a08b0c7aa
commit 6969d75024
2 changed files with 23 additions and 5 deletions
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22
net/lux_packet.go
View file

@ -5,6 +5,7 @@ import (
"crypto/cipher"
"crypto/rand"
"errors"
"log"
"lux/crypto"
"lux/proto"
"net"
@ -12,11 +13,15 @@ import (
const LUX_PROTO_PACKET_HDRLEN = proto.LUX_PROTO_ID_SIZE + 2
// Target, Type are decoded from header
// Buffer contains LuxBuffer with stripped headers
// NOTE: Packets are always padded, so payloads may be
// bigger than expected and contain trailing bytes
type LuxPacket struct {
ChannelType LuxChannelType
Target proto.LuxID
Type uint
Buffer proto.LuxBuffer
ChannelType LuxChannelType
}
func DecryptLuxPacket(dgram LuxDatagram, key crypto.LuxKey) (LuxPacket, error) {
@ -48,6 +53,13 @@ func DecryptLuxPacket(dgram LuxDatagram, key crypto.LuxKey) (LuxPacket, error) {
return packet, err
}
data, err := packet.Buffer.ReadNext(packet.Buffer.Remaining())
if err != nil {
return packet, err
}
// strip lux packet headers from payload, as well as padding
packet.Buffer = proto.FromSlice(data)
return packet, nil
}
@ -61,9 +73,11 @@ func EncryptLuxPacket(packet LuxPacket, key crypto.LuxKey, target *net.UDPAddr)
encrypter := cipher.NewCBCEncrypter(cipherBlock, key.IV)
var paddingLen int
packetLen := packet.Buffer.Length()
packetLen := LUX_PROTO_PACKET_HDRLEN + packet.Buffer.Length()
if packetLen%encrypter.BlockSize() != 0 {
paddingLen = ((packetLen / encrypter.BlockSize()) + 1) * encrypter.BlockSize()
//paddingLen = ((packetLen / encrypter.BlockSize()) + 1) * encrypter.BlockSize()
paddingLen = encrypter.BlockSize() - (packetLen % encrypter.BlockSize())
log.Default().Print(packetLen, paddingLen)
} else {
paddingLen = 0
}
@ -74,7 +88,7 @@ func EncryptLuxPacket(packet LuxPacket, key crypto.LuxKey, target *net.UDPAddr)
return dgram, err
}
wd := proto.AllocLuxBuffer(LUX_PROTO_PACKET_HDRLEN + packetLen + paddingLen)
wd := proto.AllocLuxBuffer(packetLen + paddingLen)
key.Id.Write(&wd)
wd.WriteUint16(uint16(packet.Type))
wd.WriteBytes(packet.Buffer.AllBytes())

6
tests/lux_router_test.go
View file

@ -88,9 +88,13 @@ func TestRouterSendRecv(t *testing.T) {
if newPacket.Type != packet.Type {
t.Fatal("newPacket.Type != packet.Type")
}
if !bytes.Equal(newPacket.Buffer.AllBytes(), payload) {
if newPayload, _ := newPacket.Buffer.ReadNext(8); !bytes.Equal(newPayload, payload) {
t.Log(payload)
t.Log(newPacket.Buffer.AllBytes())
t.Fatal("payloads aren't equal!")
}
if len(routerA.GetRoutes()) != 1 {
t.Fatal("routerA does not contain new inbound route")
}
}