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Merge branch 'upstream' into sync-upstream

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Gaukas Wang 2023-08-28 14:12:03 -06:00
commit 856bc02b8f
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130 changed files with 1364 additions and 463 deletions
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67
fuzzing/handshake/fuzz.go
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@ -85,33 +85,6 @@ func (m messageType) String() string {
}
}
func appendSuites(suites []uint16, rand uint8) []uint16 {
const (
s1 = tls.TLS_AES_128_GCM_SHA256
s2 = tls.TLS_AES_256_GCM_SHA384
s3 = tls.TLS_CHACHA20_POLY1305_SHA256
)
switch rand % 4 {
default:
return suites
case 1:
return append(suites, s1)
case 2:
return append(suites, s2)
case 3:
return append(suites, s3)
}
}
// consumes 2 bits
func getSuites(rand uint8) []uint16 {
suites := make([]uint16, 0, 3)
for i := 1; i <= 3; i++ {
suites = appendSuites(suites, rand>>i%4)
}
return suites
}
// consumes 3 bits
func getClientAuth(rand uint8) tls.ClientAuthType {
switch rand {
@ -148,6 +121,7 @@ func getTransportParameters(seed uint8) *wire.TransportParameters {
const maxVarInt = math.MaxUint64 / 4
r := mrand.New(mrand.NewSource(int64(seed)))
return &wire.TransportParameters{
ActiveConnectionIDLimit: 2,
InitialMaxData: protocol.ByteCount(r.Int63n(maxVarInt)),
InitialMaxStreamDataBidiLocal: protocol.ByteCount(r.Int63n(maxVarInt)),
InitialMaxStreamDataBidiRemote: protocol.ByteCount(r.Int63n(maxVarInt)),
@ -207,14 +181,26 @@ func runHandshake(runConfig [confLen]byte, messageConfig uint8, clientConf *tls.
SessionTicketKey: sessionTicketKey,
}
// This sets the cipher suite for both client and server.
// The way crypto/tls is designed doesn't allow us to set different cipher suites for client and server.
resetCipherSuite := func() {}
switch (runConfig[0] >> 6) % 4 {
case 0:
resetCipherSuite = qtls.SetCipherSuite(tls.TLS_AES_128_GCM_SHA256)
case 1:
resetCipherSuite = qtls.SetCipherSuite(tls.TLS_AES_256_GCM_SHA384)
case 3:
resetCipherSuite = qtls.SetCipherSuite(tls.TLS_CHACHA20_POLY1305_SHA256)
default:
}
defer resetCipherSuite()
enable0RTTClient := helper.NthBit(runConfig[0], 0)
enable0RTTServer := helper.NthBit(runConfig[0], 1)
sendPostHandshakeMessageToClient := helper.NthBit(runConfig[0], 3)
sendPostHandshakeMessageToServer := helper.NthBit(runConfig[0], 4)
sendSessionTicket := helper.NthBit(runConfig[0], 5)
clientConf.CipherSuites = getSuites(runConfig[0] >> 6)
serverConf.ClientAuth = getClientAuth(runConfig[1] & 0b00000111)
serverConf.CipherSuites = getSuites(runConfig[1] >> 6)
serverConf.SessionTicketsDisabled = helper.NthBit(runConfig[1], 3)
if helper.NthBit(runConfig[2], 0) {
clientConf.RootCAs = x509.NewCertPool()
@ -303,6 +289,7 @@ func runHandshake(runConfig [confLen]byte, messageConfig uint8, clientConf *tls.
if err := client.StartHandshake(); err != nil {
log.Fatal(err)
}
defer client.Close()
server := handshake.NewCryptoSetupServer(
protocol.ConnectionID{},
@ -319,12 +306,13 @@ func runHandshake(runConfig [confLen]byte, messageConfig uint8, clientConf *tls.
if err := server.StartHandshake(); err != nil {
log.Fatal(err)
}
defer server.Close()
var clientHandshakeComplete, serverHandshakeComplete bool
for {
var processedEvent bool
clientLoop:
for {
var processedEvent bool
ev := client.NextEvent()
//nolint:exhaustive // only need to process a few events
switch ev.Kind {
@ -335,11 +323,16 @@ func runHandshake(runConfig [confLen]byte, messageConfig uint8, clientConf *tls.
break clientLoop
case handshake.EventWriteInitialData, handshake.EventWriteHandshakeData:
msg := ev.Data
encLevel := protocol.EncryptionInitial
if ev.Kind == handshake.EventWriteHandshakeData {
encLevel = protocol.EncryptionHandshake
}
if msg[0] == messageToReplace {
fmt.Printf("replacing %s message to the server with %s at %s\n", messageType(msg[0]), messageType(data[0]), messageToReplaceEncLevel)
msg = data
encLevel = messageToReplaceEncLevel
}
if err := server.HandleMessage(msg, messageToReplaceEncLevel); err != nil {
if err := server.HandleMessage(msg, encLevel); err != nil {
return 1
}
case handshake.EventHandshakeComplete:
@ -348,9 +341,9 @@ func runHandshake(runConfig [confLen]byte, messageConfig uint8, clientConf *tls.
processedEvent = true
}
processedEvent = false
serverLoop:
for {
var processedEvent bool
ev := server.NextEvent()
//nolint:exhaustive // only need to process a few events
switch ev.Kind {
@ -360,12 +353,17 @@ func runHandshake(runConfig [confLen]byte, messageConfig uint8, clientConf *tls.
}
break serverLoop
case handshake.EventWriteInitialData, handshake.EventWriteHandshakeData:
encLevel := protocol.EncryptionInitial
if ev.Kind == handshake.EventWriteHandshakeData {
encLevel = protocol.EncryptionHandshake
}
msg := ev.Data
if msg[0] == messageToReplace {
fmt.Printf("replacing %s message to the client with %s at %s\n", messageType(msg[0]), messageType(data[0]), messageToReplaceEncLevel)
msg = data
encLevel = messageToReplaceEncLevel
}
if err := client.HandleMessage(msg, messageToReplaceEncLevel); err != nil {
if err := client.HandleMessage(msg, encLevel); err != nil {
return 1
}
case handshake.EventHandshakeComplete:
@ -410,10 +408,13 @@ func runHandshake(runConfig [confLen]byte, messageConfig uint8, clientConf *tls.
}
client.HandleMessage(ticket, protocol.Encryption1RTT)
}
if sendPostHandshakeMessageToClient {
fmt.Println("sending post handshake message to the client at", messageToReplaceEncLevel)
client.HandleMessage(data, messageToReplaceEncLevel)
}
if sendPostHandshakeMessageToServer {
fmt.Println("sending post handshake message to the server at", messageToReplaceEncLevel)
server.HandleMessage(data, messageToReplaceEncLevel)
}