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use the fuzzing helper functions to generate the frames seed corpus

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This commit is contained in:
Marten Seemann 2020-08-25 12:59:14 +07:00
parent 745e51ac4f
commit 5090dd6199
65 changed files with 31 additions and 71 deletions
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35
fuzzing/frames/fuzz.go
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@ -8,27 +8,34 @@ import (
"github.com/lucas-clemente/quic-go/internal/wire"
)
const version = protocol.VersionTLS
// PrefixLen is the number of bytes used for configuration
const PrefixLen = 1
func toEncLevel(v uint8) protocol.EncryptionLevel {
switch v % 3 {
default:
return protocol.EncryptionInitial
case 1:
return protocol.EncryptionHandshake
case 2:
return protocol.Encryption1RTT
}
}
// Fuzz fuzzes the QUIC frames.
//go:generate go run ./cmd/corpus.go
func Fuzz(data []byte) int {
const version = protocol.VersionTLS
if len(data) < 1 {
if len(data) < PrefixLen {
return 0
}
encLevel := toEncLevel(data[0])
data = data[PrefixLen:]
parser := wire.NewFrameParser(version)
parser.SetAckDelayExponent(protocol.DefaultAckDelayExponent)
var encLevel protocol.EncryptionLevel
switch data[0] % 3 {
case 0:
encLevel = protocol.EncryptionInitial
case 1:
encLevel = protocol.EncryptionHandshake
case 2:
encLevel = protocol.Encryption1RTT
}
data = data[1:]
r := bytes.NewReader(data)
initialLen := r.Len()