1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
package wire
import "github.com/quic-go/quic-go/internal/protocol"
type FrameType uint64
// These constants correspond to those defined in RFC 9000.
// Stream frame types are not listed explicitly here; use FrameType.IsStreamFrameType() to identify them.
const (
FrameTypePing FrameType = 0x1
FrameTypeAck FrameType = 0x2
FrameTypeAckECN FrameType = 0x3
FrameTypeResetStream FrameType = 0x4
FrameTypeStopSending FrameType = 0x5
FrameTypeCrypto FrameType = 0x6
FrameTypeNewToken FrameType = 0x7
FrameTypeMaxData FrameType = 0x10
FrameTypeMaxStreamData FrameType = 0x11
FrameTypeBidiMaxStreams FrameType = 0x12
FrameTypeUniMaxStreams FrameType = 0x13
FrameTypeDataBlocked FrameType = 0x14
FrameTypeStreamDataBlocked FrameType = 0x15
FrameTypeBidiStreamBlocked FrameType = 0x16
FrameTypeUniStreamBlocked FrameType = 0x17
FrameTypeNewConnectionID FrameType = 0x18
FrameTypeRetireConnectionID FrameType = 0x19
FrameTypePathChallenge FrameType = 0x1a
FrameTypePathResponse FrameType = 0x1b
FrameTypeConnectionClose FrameType = 0x1c
FrameTypeApplicationClose FrameType = 0x1d
FrameTypeHandshakeDone FrameType = 0x1e
FrameTypeResetStreamAt FrameType = 0x24 // https://datatracker.ietf.org/doc/draft-ietf-quic-reliable-stream-reset/06/
FrameTypeDatagramNoLength FrameType = 0x30
FrameTypeDatagramWithLength FrameType = 0x31
)
func (t FrameType) IsStreamFrameType() bool {
return t >= 0x8 && t <= 0xf
}
func (t FrameType) isValidRFC9000() bool {
return t <= 0x1e
}
func (t FrameType) IsAckFrameType() bool {
return t == FrameTypeAck || t == FrameTypeAckECN
}
func (t FrameType) IsDatagramFrameType() bool {
return t == FrameTypeDatagramNoLength || t == FrameTypeDatagramWithLength
}
func (t FrameType) isAllowedAtEncLevel(encLevel protocol.EncryptionLevel) bool {
//nolint:exhaustive
switch encLevel {
case protocol.EncryptionInitial, protocol.EncryptionHandshake:
switch t {
case FrameTypeCrypto, FrameTypeAck, FrameTypeAckECN, FrameTypeConnectionClose, FrameTypePing:
return true
default:
return false
}
case protocol.Encryption0RTT:
switch t {
case FrameTypeCrypto, FrameTypeAck, FrameTypeAckECN, FrameTypeConnectionClose, FrameTypeNewToken, FrameTypePathResponse, FrameTypeRetireConnectionID:
return false
default:
return true
}
case protocol.Encryption1RTT:
return true
default:
panic("unknown encryption level")
}
}
|
