mirror of
https://github.com/soypat/lneto.git
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soypat
42 lines
1.3 KiB
Go
42 lines
1.3 KiB
Go
package main
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import (
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"testing"
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"github.com/soypat/lneto/ethernet"
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"github.com/soypat/lneto/ipv4"
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"github.com/soypat/lneto/tcp"
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)
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func TestChecksum(t *testing.T) {
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for _, epacket := range ethpackets {
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efrm, _ := ethernet.NewFrame(epacket)
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ifrm, _ := ipv4.NewFrame(efrm.Payload())
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ipPayload := ifrm.Payload()
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tfrm, _ := tcp.NewFrame(ipPayload)
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crc := tcpChecksum(ifrm.RawData(), len(ipPayload))
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wantCRC := tfrm.CRC()
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if crc != wantCRC {
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t.Fatalf("crc mismatch, got %x, want %x", crc, wantCRC)
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}
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}
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}
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var ethpackets = [][]byte{
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{
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0xc0, 0xff, 0xee, 0x00, 0xde, 0xad, 0x3a, 0xd1, 0x6d, 0x82, 0x6b, 0x1a, 0x08, 0x00, 0x45, 0x00,
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0x00, 0x3c, 0xe3, 0xc6, 0x40, 0x00, 0x40, 0x06, 0xc1, 0xa1, 0xc0, 0xa8, 0x0a, 0x01, 0xc0, 0xa8,
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0x0a, 0x02, 0xd5, 0x70, 0x00, 0x50, 0xc4, 0x10, 0x30, 0x49, 0x00, 0x00, 0x00, 0x00, 0xa0, 0x02,
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0xfa, 0xf0, 0x2c, 0x80, 0x00, 0x00, 0x02, 0x04, 0x05, 0xb4, 0x04, 0x02, 0x08, 0x0a, 0xe8, 0x22,
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0xd8, 0xfd, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x07,
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},
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{
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0xc0, 0xff, 0xee, 0x00, 0xde, 0xad, 0xc0, 0xff, 0xee, 0x00, 0xde, 0xad, 0x08, 0x00, 0x45, 0x00,
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0x00, 0x28, 0x00, 0x00, 0x40, 0x00, 0x40, 0x06, 0x70, 0x26, 0xc0, 0xa8, 0x0a, 0x02, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x50, 0xa5, 0xb8, 0x00, 0x00, 0x00, 0x64, 0x2f, 0x46, 0x4c, 0xe5, 0x50, 0x12,
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0x08, 0x00, 0xBA, 0x90, 0x00, 0x00,
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},
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}
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