forked from quic-go/quic-go
89 lines
2.8 KiB
Go
89 lines
2.8 KiB
Go
package main
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import (
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"crypto/rand"
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"log"
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"math"
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mrand "math/rand/v2"
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"net/netip"
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"time"
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"github.com/quic-go/quic-go/fuzzing/internal/helper"
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"github.com/quic-go/quic-go/fuzzing/transportparameters"
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"github.com/quic-go/quic-go/internal/protocol"
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"github.com/quic-go/quic-go/internal/wire"
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)
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func getRandomData(l int) []byte {
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b := make([]byte, l)
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rand.Read(b)
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return b
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}
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func getRandomValue() uint64 {
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maxVals := []uint64{math.MaxUint8 / 4, math.MaxUint16 / 4, math.MaxUint32 / 4, math.MaxUint64 / 4}
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return mrand.Uint64N(maxVals[mrand.IntN(4)])
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}
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func main() {
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for i := 0; i < 30; i++ {
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tp := &wire.TransportParameters{
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InitialMaxStreamDataBidiLocal: protocol.ByteCount(getRandomValue()),
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InitialMaxStreamDataBidiRemote: protocol.ByteCount(getRandomValue()),
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InitialMaxStreamDataUni: protocol.ByteCount(getRandomValue()),
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InitialMaxData: protocol.ByteCount(getRandomValue()),
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MaxAckDelay: time.Duration(getRandomValue()),
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AckDelayExponent: uint8(getRandomValue()),
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DisableActiveMigration: getRandomValue()%2 == 0,
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MaxUDPPayloadSize: protocol.ByteCount(getRandomValue()),
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MaxUniStreamNum: protocol.StreamNum(getRandomValue()),
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MaxBidiStreamNum: protocol.StreamNum(getRandomValue()),
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MaxIdleTimeout: time.Duration(getRandomValue()),
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ActiveConnectionIDLimit: getRandomValue() + 2,
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}
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if mrand.IntN(2) == 0 {
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tp.OriginalDestinationConnectionID = protocol.ParseConnectionID(getRandomData(mrand.IntN(21)))
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}
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if mrand.IntN(2) == 0 {
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tp.InitialSourceConnectionID = protocol.ParseConnectionID(getRandomData(mrand.IntN(21)))
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}
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if mrand.IntN(2) == 0 {
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connID := protocol.ParseConnectionID(getRandomData(mrand.IntN(21)))
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tp.RetrySourceConnectionID = &connID
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}
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if mrand.IntN(2) == 0 {
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var token protocol.StatelessResetToken
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rand.Read(token[:])
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tp.StatelessResetToken = &token
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}
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if mrand.IntN(2) == 0 {
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var token protocol.StatelessResetToken
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rand.Read(token[:])
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var ip4 [4]byte
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rand.Read(ip4[:])
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var ip6 [16]byte
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rand.Read(ip6[:])
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tp.PreferredAddress = &wire.PreferredAddress{
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IPv4: netip.AddrPortFrom(netip.AddrFrom4(ip4), uint16(mrand.Int())),
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IPv6: netip.AddrPortFrom(netip.AddrFrom16(ip6), uint16(mrand.Int())),
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ConnectionID: protocol.ParseConnectionID(getRandomData(mrand.IntN(21))),
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StatelessResetToken: token,
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}
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}
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var data []byte
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if mrand.Int()%2 == 0 {
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pers := protocol.PerspectiveServer
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if mrand.Int()%2 == 0 {
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pers = protocol.PerspectiveClient
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}
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data = tp.Marshal(pers)
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} else {
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data = tp.MarshalForSessionTicket(nil)
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}
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if err := helper.WriteCorpusFileWithPrefix("corpus", data, transportparameters.PrefixLen); err != nil {
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log.Fatal(err)
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}
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}
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}
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