draft-mcquistin-quic-augmented-diagrams-01.txt   draft-mcquistin-quic-augmented-diagrams-02.txt 
Network Working Group S. McQuistin Network Working Group S. McQuistin
Internet-Draft V. Band Internet-Draft V. Band
Intended status: Experimental D. Jacob Intended status: Experimental D. Jacob
Expires: 19 December 2020 C. S. Perkins Expires: 14 January 2021 C. S. Perkins
University of Glasgow University of Glasgow
17 June 2020 13 July 2020
Describing QUIC's Protocol Data Units with Augmented Packet Header Describing QUIC's Protocol Data Units with Augmented Packet Header
Diagrams Diagrams
draft-mcquistin-quic-augmented-diagrams-01 draft-mcquistin-quic-augmented-diagrams-02
Abstract Abstract
This document describes the core transport protocol data units used This document describes the core transport protocol data units used
in the QUIC protocol using a machine-readable augmented packet header in the QUIC protocol using a machine-readable augmented packet header
diagram format. It is intended as an example of the packet header diagram format. It is intended as an example of the packet header
diagram language, and not as a contribution to the development of the diagram language, and not as a contribution to the development of the
QUIC protocol. QUIC protocol.
Status of This Memo Status of This Memo
skipping to change at page 1, line 37 skipping to change at page 1, line 37
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
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Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on 19 December 2020. This Internet-Draft will expire on 14 January 2021.
Copyright Notice Copyright Notice
Copyright (c) 2020 IETF Trust and the persons identified as the Copyright (c) 2020 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
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Provisions Relating to IETF Documents (https://trustee.ietf.org/ Provisions Relating to IETF Documents (https://trustee.ietf.org/
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skipping to change at page 4, line 52 skipping to change at page 4, line 52
where: where:
Header Form (HF): 1 bit; HF == 0. The most significant bit (0x80) of Header Form (HF): 1 bit; HF == 0. The most significant bit (0x80) of
byte 0 (the first byte) is set to 0 for stateless reset packets. byte 0 (the first byte) is set to 0 for stateless reset packets.
Fixed Bit (FB): 1 bit; FB == 1. The next bit (0x40) of byte 0 is set Fixed Bit (FB): 1 bit; FB == 1. The next bit (0x40) of byte 0 is set
to 1. Packets containing a zero value for this bit are not valid to 1. Packets containing a zero value for this bit are not valid
packets in this version and MUST be discarded. packets in this version and MUST be discarded.
Unpredictable Bits (UB): UB.Size > 38. The remainder of the first Unpredictable Bits (UB): UB#Size > 38. The remainder of the first
byte and an arbitrary number of bytes following it that are set to byte and an arbitrary number of bytes following it that are set to
unpredictable values. unpredictable values.
Stateless Reset Token: 128 bits. The last 16 bytes of the datagram Stateless Reset Token: 128 bits. The last 16 bytes of the datagram
contain a Stateless Reset Token. contain a Stateless Reset Token.
5. Version Negotiation Packet 5. Version Negotiation Packet
A Version is formatted as follows: A Version is formatted as follows:
skipping to change at page 10, line 14 skipping to change at page 10, line 14
where: where:
Long Header (LH): 1 Long Header; LH.T == 0. An Initial packet uses Long Header (LH): 1 Long Header; LH.T == 0. An Initial packet uses
long headers with a type value of 0x0. On receipt, the value of long headers with a type value of 0x0. On receipt, the value of
LH.DCID is stored as Initial DCID. LH.DCID is stored as Initial DCID.
Token Length (TL): 1 Variable Length Integer Encoding. A variable- Token Length (TL): 1 Variable Length Integer Encoding. A variable-
length integer specifying the length of the Token field, in bytes. length integer specifying the length of the Token field, in bytes.
Token: TL.Value bytes; present only when TL.Value > 0. The value of Token: TL bytes; present only when TL > 0. The value of the token
the token that was previously provided in a Retry packet or that was previously provided in a Retry packet or NEW_TOKEN frame.
NEW_TOKEN frame.
Length: 1 Variable Length Integer Encoding. The length of the Length: 1 Variable Length Integer Encoding. The length of the
remainder of the packet (that is, the Packet Number and Payload remainder of the packet (that is, the Packet Number and Payload
fields) in bytes, encoded as a variable-length integer. fields) in bytes, encoded as a variable-length integer.
Packet Number: LH.P+1 bytes. The packet number field. Packet Number: LH.P+1 bytes. The packet number field.
Payload: [Frame]. The payload field, comprised of multiple frames. Payload: [Frame]. The payload field, comprised of multiple frames.
A Protected Initial packet is formatted as follows: A Protected Initial packet is formatted as follows:
skipping to change at page 11, line 5 skipping to change at page 11, line 5
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
where: where:
Long Header (LH): 1 Long Header; LH.T == 0. An Initial packet uses Long Header (LH): 1 Long Header; LH.T == 0. An Initial packet uses
long headers with a type value of 0x0. long headers with a type value of 0x0.
Token Length (TL): 1 Variable Length Integer Encoding. A variable- Token Length (TL): 1 Variable Length Integer Encoding. A variable-
length integer specifying the length of the Token field, in bytes. length integer specifying the length of the Token field, in bytes.
Token: TL.Value bytes; present only when TL.Value > 0. The value of Token: TL bytes; present only when TL > 0. The value of the token
the token that was previously provided in a Retry packet or that was previously provided in a Retry packet or NEW_TOKEN frame.
NEW_TOKEN frame.
Length: 1 Variable Length Integer Encoding. The length of the Length: 1 Variable Length Integer Encoding. The length of the
remainder of the packet (that is, the Packet Number and Payload remainder of the packet (that is, the Packet Number and Payload
fields) in bytes, encoded as a variable-length integer. fields) in bytes, encoded as a variable-length integer.
Protected Packet Number: LH.P+1 bytes. The packet number field, with Protected Packet Number: LH.P+1 bytes. The packet number field, with
header protection. header protection.
Protected Payload: (Length.Value-(LH.P+1)) bytes. The protected Protected Payload: (Length-(LH.P+1)) bytes. The protected payload
payload field. field.
6.2. 0RTT Packet 6.2. 0RTT Packet
A 0RTT Packet is formatted as follows: A 0RTT Packet is formatted as follows:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| : | :
: Long Header : : Long Header :
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Long Header (LH): 1 Long Header; LH.T == 1. A 0-RTT packet uses long Long Header (LH): 1 Long Header; LH.T == 1. A 0-RTT packet uses long
headers with a type value of 0x1. headers with a type value of 0x1.
Length: 1 Variable Length Integer Encoding. The length of the Length: 1 Variable Length Integer Encoding. The length of the
remainder of the packet (that is, the Packet Number and Payload remainder of the packet (that is, the Packet Number and Payload
fields) in bytes, encoded as a variable-length integer. fields) in bytes, encoded as a variable-length integer.
Protected Packet Number: LH.P+1 bytes. The packet number field, with Protected Packet Number: LH.P+1 bytes. The packet number field, with
header protection. header protection.
Protected Payload: (Length.Value-(LH.P+1)) bytes. The protected Protected Payload: (Length-(LH.P+1)) bytes. The protected payload
payload field. field.
6.3. Handshake Packet 6.3. Handshake Packet
A Handshake Packet is formatted as follows: A Handshake Packet is formatted as follows:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| : | :
: Long Header : : Long Header :
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Long Header (LH): 1 Long Header; LH.T == 2. A Handshake packet uses Long Header (LH): 1 Long Header; LH.T == 2. A Handshake packet uses
long headers with a type value of 0x2. long headers with a type value of 0x2.
Length: 1 Variable Length Integer Encoding. The length of the Length: 1 Variable Length Integer Encoding. The length of the
remainder of the packet (that is, the Packet Number and Payload remainder of the packet (that is, the Packet Number and Payload
fields) in bytes, encoded as a variable-length integer. fields) in bytes, encoded as a variable-length integer.
Protected Packet Number: LH.P+1 bytes. The packet number field, with Protected Packet Number: LH.P+1 bytes. The packet number field, with
header protection. header protection.
Protected Payload: (Length.Value-(LH.P+1)) bytes. The protected Protected Payload: (Length-(LH.P+1)) bytes. The protected payload
payload field. field.
6.4. Retry Packet 6.4. Retry Packet
A Retry Packet is formatted as follows: A Retry Packet is formatted as follows:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| : | :
: Long Header : : Long Header :
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Packet Number. The packet number field is 1 to 4 bytes long. The Packet Number. The packet number field is 1 to 4 bytes long. The
packet number has confidentiality protection separate from packet packet number has confidentiality protection separate from packet
protection. The length of the packet number field is encoded in protection. The length of the packet number field is encoded in
Packet Number Length field. Packet Number Length field.
Protected Payload: [Frame]. Packets with a short header always Protected Payload: [Frame]. Packets with a short header always
include a 1-RTT protected payload. include a 1-RTT protected payload.
8. Frames and Frame Formats 8. Frames and Frame Formats
A Frame is one of: a PADDING frame, a PING frame, an ACK frame, a A Frame is one of: a PADDING Frame, a PING Frame, an ACK Frame, a
RESET_STREAM frame, a STOP_SENDING frame, a CRYPTO frame, a NEW_TOKEN RESET_STREAM Frame, a STOP_SENDING Frame, a CRYPTO Frame, a NEW_TOKEN
frame, a STREAM frame, a MAX_DATA frame, a MAX_STREAM_DATA frame, a Frame, a STREAM Frame, a MAX_DATA Frame, a MAX_STREAM_DATA Frame, a
MAX_STREAMS frame, a DATA_BLOCKED frame, a STREAM_DATA_BLOCKED frame, MAX_STREAMS Frame, a DATA_BLOCKED Frame, a STREAM_DATA_BLOCKED Frame,
a STREAMS_BLOCKED frame, a NEW_CONNECTION_ID frame, a PATH_CHALLENGE a STREAMS_BLOCKED Frame, a NEW_CONNECTION_ID Frame, a PATH_CHALLENGE
frame, a PATH_RESPONSE frame, a CONNECTION_CLOSE frame, or a Frame, a PATH_RESPONSE Frame, a CONNECTION_CLOSE Frame, or a
HANDSHAKE_DONE frame. HANDSHAKE_DONE Frame.
8.1. PADDING frame 8.1. PADDING frame
A PADDING Frame is formatted as follows: A PADDING Frame is formatted as follows:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
where: where:
Frame Type (FT): 1 Variable Length Integer Encoding; FT.Value == Frame Type (FT): 1 Variable Length Integer Encoding; FT == 0. Frame
0. Frame type, set to 0 for PADDING frames. type, set to 0 for PADDING frames.
8.2. PING frame 8.2. PING frame
A PING Frame is formatted as follows: A PING Frame is formatted as follows:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 1 | | 1 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
where: where:
Frame Type (FT): 1 Variable Length Integer Encoding; FT.Value == Frame Type (FT): 1 Variable Length Integer Encoding; FT == 1. Frame
1. Frame type, set to 1 for PING frames. type, set to 1 for PING frames.
8.3. ACK frame 8.3. ACK frame
An ACK Range is formatted as follows: An ACK Range is formatted as follows:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Gap ... | Gap ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| First ACK Range ... | First ACK Range ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| [Other ACK Ranges] ... | [Other ACK Ranges] ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| ECN Counts ... | ECN Counts ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
where: where:
Frame Type (FT): 1 Variable Length Integer Encoding; (FT.Value == Frame Type (FT): 1 Variable Length Integer Encoding; (FT == 3) ||
3) || (FT.Value == 4). Frame type, set to 3 or 4 for ACK frames. (FT == 4). Frame type, set to 3 or 4 for ACK frames.
Largest Acknowledged: 1 Variable Length Integer Encoding. A Largest Acknowledged: 1 Variable Length Integer Encoding. A
variable-length integer representing the largest packet number the variable-length integer representing the largest packet number the
peer is acknowledging; this is usually the largest packet number peer is acknowledging; this is usually the largest packet number
that the peer has received prior to generating the ACK frame. that the peer has received prior to generating the ACK frame.
Unlike the packet number in the QUIC long or short header, the Unlike the packet number in the QUIC long or short header, the
value in an ACK frame is not truncated. value in an ACK frame is not truncated.
ACK Delay: 1 Variable Length Integer Encoding. A variable-length ACK Delay: 1 Variable Length Integer Encoding. A variable-length
integer representing the time delta in microseconds between when integer representing the time delta in microseconds between when
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ACK Range Count: 1 Variable Length Integer Encoding. A variable- ACK Range Count: 1 Variable Length Integer Encoding. A variable-
length integer specifying the number of Gap and ACK Range fields length integer specifying the number of Gap and ACK Range fields
in the frame. in the frame.
First ACK Range: 1 ACK Range. The First ACK Range is encoded as an First ACK Range: 1 ACK Range. The First ACK Range is encoded as an
ACK Range starting from the Largest Acknowledged. ACK Range starting from the Largest Acknowledged.
Other ACK Ranges: [ACK Range]. Contains additional ranges of packets Other ACK Ranges: [ACK Range]. Contains additional ranges of packets
which are alternately not acknowledged and acknowledged. which are alternately not acknowledged and acknowledged.
ECN Counts: 1 ECN Count; present only when FT.Value == 3. The three ECN Counts: 1 ECN Count; present only when FT == 3. The three ECN
ECN Counts. Counts.
8.4. RESET_STREAM frame 8.4. RESET_STREAM frame
A RESET_STREAM Frame is formatted as follows: A RESET_STREAM Frame is formatted as follows:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 4 | | 4 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Stream ID ... | Stream ID ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Application Error Code ... | Application Error Code ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Final Size ... | Final Size ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
where: where:
Frame Type (FT): 1 Variable Length Integer Encoding; FT.Value == Frame Type (FT): 1 Variable Length Integer Encoding; FT == 4. Frame
4. Frame type, set to 4 for RESET_STREAM frames. type, set to 4 for RESET_STREAM frames.
Stream ID: 1 Variable Length Integer Encoding. A variable-length Stream ID: 1 Variable Length Integer Encoding. A variable-length
integer encoding of the Stream ID of the stream being terminated. integer encoding of the Stream ID of the stream being terminated.
Application Error Code: 1 Variable Length Integer Encoding. A variab Application Error Code: 1 Variable Length Integer Encoding. A variab
le-length integer containing the application protocol error code le-length integer containing the application protocol error code
which indicates why the stream is being closed. which indicates why the stream is being closed.
Final Size: 1 Variable Length Integer Encoding. A variable-length Final Size: 1 Variable Length Integer Encoding. A variable-length
integer indicating the final size of the stream by the integer indicating the final size of the stream by the
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 5 | | 5 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Stream ID ... | Stream ID ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Application Error Code ... | Application Error Code ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
where: where:
Frame Type (FT): 1 Variable Length Integer Encoding; FT.Value == Frame Type (FT): 1 Variable Length Integer Encoding; FT == 5. Frame
5. Frame type, set to 5 for STOP_SENDING frames. type, set to 5 for STOP_SENDING frames.
Stream ID: 1 Variable Length Integer Encoding. A variable-length Stream ID: 1 Variable Length Integer Encoding. A variable-length
integer carrying the Stream ID of the stream being ignored. integer carrying the Stream ID of the stream being ignored.
Application Error Code: 1 Variable Length Integer Encoding. A variab Application Error Code: 1 Variable Length Integer Encoding. A variab
le-length integer containing the application-specified reason the le-length integer containing the application-specified reason the
sender is ignoring the stream. sender is ignoring the stream.
8.6. CRYPTO frame 8.6. CRYPTO frame
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Length ... | Length ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| : | :
: Crypto Data : : Crypto Data :
: | : |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
where: where:
Frame Type (FT): 1 Variable Length Integer Encoding; FT.Value == Frame Type (FT): 1 Variable Length Integer Encoding; FT == 6. Frame
6. Frame type, set to 6 for CRYPTO frames. type, set to 6 for CRYPTO frames.
Offset: 1 Variable Length Integer Encoding. A variable-length Offset: 1 Variable Length Integer Encoding. A variable-length
integer specifying the byte offset in the stream for the data in integer specifying the byte offset in the stream for the data in
this CRYPTO frame. this CRYPTO frame.
Length: 1 Variable Length Integer Encoding. A variable-length Length: 1 Variable Length Integer Encoding. A variable-length
integer specifying the length of the Crypto Data field in this integer specifying the length of the Crypto Data field in this
CRYPTO frame. CRYPTO frame.
Crypto Data: Length.Value bytes. The cryptographic message data. Crypto Data: Length bytes. The cryptographic message data.
8.7. NEW_TOKEN frame 8.7. NEW_TOKEN frame
A NEW_TOKEN Frame is formatted as follows: A NEW_TOKEN Frame is formatted as follows:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 7 | | 7 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Token Length ... | Token Length ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| : | :
: Token : : Token :
: | : |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
where: where:
Frame Type (FT): 1 Variable Length Integer Encoding; FT.Value == Frame Type (FT): 1 Variable Length Integer Encoding; FT == 7. Frame
7. Frame type, set to 7 for NEW_TOKEN frames. type, set to 7 for NEW_TOKEN frames.
Token Length (TL): 1 Variable Length Integer Encoding. A variable- Token Length (TL): 1 Variable Length Integer Encoding. A variable-
length integer specifying the length of the token in bytes. length integer specifying the length of the token in bytes.
Token: TL.Value bytes. An opaque blob that the client may use with a Token: TL bytes. An opaque blob that the client may use with a
future Initial packet. future Initial packet.
8.8. STREAM frame 8.8. STREAM frame
A STREAM Frame is formatted as follows: A STREAM Frame is formatted as follows:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 1 |O|L|F| | 1 |O|L|F|
skipping to change at page 23, line 27 skipping to change at page 23, line 27
Offset: 1 Variable Length Integer Encoding; present only when O == Offset: 1 Variable Length Integer Encoding; present only when O ==
1. A variable-length integer specifying the byte offset in the 1. A variable-length integer specifying the byte offset in the
stream for the data in this STREAM frame. stream for the data in this STREAM frame.
Length: 1 Variable Length Integer Encoding; present only when L == Length: 1 Variable Length Integer Encoding; present only when L ==
1. A variable-length integer specifying the length of the Stream 1. A variable-length integer specifying the length of the Stream
Data field in this STREAM frame. This field is present when the Data field in this STREAM frame. This field is present when the
LEN bit is set to 1. When the LEN bit is set to 0, the Stream LEN bit is set to 1. When the LEN bit is set to 0, the Stream
Data field consumes all the remaining bytes in the packet. Data field consumes all the remaining bytes in the packet.
Stream Data: Length.Value bytes. The bytes from the designated Stream Data: Length bytes. The bytes from the designated stream to
stream to be delivered. be delivered.
8.9. MAX_DATA frame 8.9. MAX_DATA frame
A MAX_DATA Frame is formatted as follows: A MAX_DATA Frame is formatted as follows:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 16 | | 16 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Maximum Data ... | Maximum Data ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
where: where:
Frame Type (FT): 1 Variable Length Integer Encoding; FT.Value == Frame Type (FT): 1 Variable Length Integer Encoding; FT == 16. Frame
16. Frame type, set to 16 for MAX_DATA frames. type, set to 16 for MAX_DATA frames.
Maximum Data: 1 Variable Length Integer Encoding. A variable-length Maximum Data: 1 Variable Length Integer Encoding. A variable-length
integer indicating the maximum amount of data that can be sent on integer indicating the maximum amount of data that can be sent on
the entire connection, in units of bytes. the entire connection, in units of bytes.
8.10. MAX_STREAM_DATA frame 8.10. MAX_STREAM_DATA frame
A MAX_STREAM_DATA Frame is formatted as follows: A MAX_STREAM_DATA Frame is formatted as follows:
0 1 2 3 0 1 2 3
skipping to change at page 24, line 21 skipping to change at page 24, line 21
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 17 | | 17 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Stream ID ... | Stream ID ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Maximum Stream Data ... | Maximum Stream Data ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
where: where:
Frame Type (FT): 1 Variable Length Integer Encoding; FT.Value == Frame Type (FT): 1 Variable Length Integer Encoding; FT == 17. Frame
17. Frame type, set to 17 for MAX_STREAM_DATA frames. type, set to 17 for MAX_STREAM_DATA frames.
Stream ID: 1 Variable Length Integer Encoding. The stream ID of the Stream ID: 1 Variable Length Integer Encoding. The stream ID of the
stream that is affected encoded as a variable-length integer. stream that is affected encoded as a variable-length integer.
Maximum Stream Data: 1 Variable Length Integer Encoding. A variable- Maximum Stream Data: 1 Variable Length Integer Encoding. A variable-
length integer indicating the maximum amount of data that can be length integer indicating the maximum amount of data that can be
sent on the identified stream, in units of bytes. sent on the identified stream, in units of bytes.
8.11. MAX_STREAMS frame 8.11. MAX_STREAMS frame
skipping to change at page 24, line 45 skipping to change at page 24, line 45
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| FT | | FT |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Maximum Streams ... | Maximum Streams ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
where: where:
Frame Type (FT): 1 Variable Length Integer Encoding; (FT.Value == Frame Type (FT): 1 Variable Length Integer Encoding; (FT == 18) ||
18) || (FT.Value == 19). Frame type, set to 18 or 19 for MAX_STREAMS (FT == 19). Frame type, set to 18 or 19 for MAX_STREAMS frames.
frames.
Maximum Streams: 1 Variable Length Integer Encoding. A count of the Maximum Streams: 1 Variable Length Integer Encoding. A count of the
cumulative number of streams of the corresponding type that can be cumulative number of streams of the corresponding type that can be
opened over the lifetime of the connection. opened over the lifetime of the connection.
8.12. DATA_BLOCKED frame 8.12. DATA_BLOCKED frame
A DATA_BLOCKED Frame is formatted as follows: A DATA_BLOCKED Frame is formatted as follows:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 20 | | 20 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Data Limit ... | Data Limit ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
where: where:
Frame Type (FT): 1 Variable Length Integer Encoding; FT.Value == Frame Type (FT): 1 Variable Length Integer Encoding; FT == 20. Frame
20. Frame type, set to 20 for DATA_BLOCKED frames. type, set to 20 for DATA_BLOCKED frames.
Data Limit: 1 Variable Length Integer Encoding. A variable-length Data Limit: 1 Variable Length Integer Encoding. A variable-length
integer indicating the connection-level limit at which blocking integer indicating the connection-level limit at which blocking
occurred. occurred.
8.13. STREAM_DATA_BLOCKED frame 8.13. STREAM_DATA_BLOCKED frame
A STREAM_DATA_BLOCKED Frame is formatted as follows: A STREAM_DATA_BLOCKED Frame is formatted as follows:
0 1 2 3 0 1 2 3
skipping to change at page 25, line 42 skipping to change at page 25, line 42
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 21 | | 21 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Stream ID ... | Stream ID ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Stream Data Limit ... | Stream Data Limit ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
where: where:
Frame Type (FT): 1 Variable Length Integer Encoding; FT.Value == Frame Type (FT): 1 Variable Length Integer Encoding; FT == 21. Frame
21. Frame type, set to 21 for STREAM_DATA_BLOCKED frames. type, set to 21 for STREAM_DATA_BLOCKED frames.
Stream ID: 1 Variable Length Integer Encoding. A variable-length Stream ID: 1 Variable Length Integer Encoding. A variable-length
integer indicating the stream which is flow control blocked. integer indicating the stream which is flow control blocked.
Maximum Stream Data: 1 Variable Length Integer Encoding. A variable- Maximum Stream Data: 1 Variable Length Integer Encoding. A variable-
length integer indicating the offset of the stream at which the length integer indicating the offset of the stream at which the
blocking occurred. blocking occurred.
8.14. STREAMS_BLOCKED frame 8.14. STREAMS_BLOCKED frame
skipping to change at page 26, line 19 skipping to change at page 26, line 19
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| FT | | FT |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Stream Limit ... | Stream Limit ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
where: where:
Frame Type (FT): 1 Variable Length Integer Encoding; (FT.Value == Frame Type (FT): 1 Variable Length Integer Encoding; (FT == 22) ||
22) || (FT.Value == 23). Frame type, set to 22 or 23 for (FT == 23). Frame type, set to 22 or 23 for STREAMS_BLOCKED frames.
STREAMS_BLOCKED frames.
Stream Limit: 1 Variable Length Integer Encoding. A variable-length Stream Limit: 1 Variable Length Integer Encoding. A variable-length
integer indicating the stream limit at the time the frame was integer indicating the stream limit at the time the frame was
sent. sent.
8.15. NEW_CONNECTION_ID frame 8.15. NEW_CONNECTION_ID frame
A NEW_CONNECTION_ID Frame is formatted as follows: A NEW_CONNECTION_ID Frame is formatted as follows:
0 1 2 3 0 1 2 3
skipping to change at page 27, line 7 skipping to change at page 27, line 5
+ + + +
| | | |
+ Stateless Reset Token + + Stateless Reset Token +
| | | |
+ + + +
| | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
where: where:
Frame Type (FT): 1 Variable Length Integer Encoding; FT.Value == Frame Type (FT): 1 Variable Length Integer Encoding; FT == 24. Frame
24. Frame type, set to 24 for NEW_CONNECTION_ID frames. type, set to 24 for NEW_CONNECTION_ID frames.
Sequence Number: 1 Variable Length Integer Encoding. The sequence Sequence Number: 1 Variable Length Integer Encoding. The sequence
number assigned to the connection ID by the sender. number assigned to the connection ID by the sender.
Retire Prior To: 1 Variable Length Integer Encoding. A variable- Retire Prior To: 1 Variable Length Integer Encoding. A variable-
length integer indicating which connection IDs should be retired. length integer indicating which connection IDs should be retired.
Length: 1 byte. An 8-bit unsigned integer containing the length of Length: 1 byte. An 8-bit unsigned integer containing the length of
the connection ID. Values less than 1 and greater than 20 are the connection ID. Values less than 1 and greater than 20 are
invalid and MUST be treated as a connection error of type invalid and MUST be treated as a connection error of type
skipping to change at page 27, line 41 skipping to change at page 27, line 39
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 25 | | 25 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Sequence Number ... | Sequence Number ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
where: where:
Frame Type (FT): 1 Variable Length Integer Encoding; FT.Value == Frame Type (FT): 1 Variable Length Integer Encoding; FT == 25. Frame
25. Frame type, set to 25 for RETIRE_CONNECTION_ID frames. type, set to 25 for RETIRE_CONNECTION_ID frames.
Sequence Number: 1 Variable Length Integer Encoding. The sequence Sequence Number: 1 Variable Length Integer Encoding. The sequence
number of the connection ID being retired. number of the connection ID being retired.
8.17. PATH_CHALLENGE frame 8.17. PATH_CHALLENGE frame
A PATH_CHALLENGE Frame is formatted as follows: A PATH_CHALLENGE Frame is formatted as follows:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 26 | | 26 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| | | |
+ Data + + Data +
| | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
where: where:
Frame Type (FT): 1 Variable Length Integer Encoding; FT.Value == Frame Type (FT): 1 Variable Length Integer Encoding; FT == 26. Frame
26. Frame type, set to 26 for PATH_CHALLENGE frames. type, set to 26 for PATH_CHALLENGE frames.
Data: 64 bits. This 8-byte field contains arbitrary data. Data: 64 bits. This 8-byte field contains arbitrary data.
8.18. PATH_RESPONSE frame 8.18. PATH_RESPONSE frame
A PATH_RESPONSE Frame is formatted as follows: A PATH_RESPONSE Frame is formatted as follows:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 27 | | 27 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| | | |
+ Data + + Data +
| | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
where: where:
Frame Type (FT): 1 Variable Length Integer Encoding; FT.Value == Frame Type (FT): 1 Variable Length Integer Encoding; FT == 27. Frame
27. Frame type, set to 27 for PATH_RESPONSE frames. type, set to 27 for PATH_RESPONSE frames.
Data: 64 bits. This 8-byte field contains arbitrary data. Data: 64 bits. This 8-byte field contains arbitrary data.
8.19. CONNECTION_CLOSE frame 8.19. CONNECTION_CLOSE frame
A CONNECTION_CLOSE Frame is formatted as follows: A CONNECTION_CLOSE Frame is formatted as follows:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
skipping to change at page 29, line 23 skipping to change at page 29, line 23
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Phrase Length ... | Phrase Length ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| : | :
: Reason Phrase : : Reason Phrase :
: | : |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
where: where:
Frame Type (FT): 1 Variable Length Integer Encoding; FT.Value == Frame Type (FT): 1 Variable Length Integer Encoding; FT == 28 ||
28 || FT.Value == 29. Frame type, set to 28 or 29 for FT == 29. Frame type, set to 28 or 29 for CONNECTION_CLOSE frames.
CONNECTION_CLOSE frames.
Error Code: 1 Variable Length Integer Encoding. A variable length Error Code: 1 Variable Length Integer Encoding. A variable length
integer error code which indicates the reason for closing this integer error code which indicates the reason for closing this
connection. connection.
Frame Type: 1 Variable Length Integer Encoding; present only when Frame Type: 1 Variable Length Integer Encoding; present only when
FT.Value == 28. A variable-length integer encoding the type of frame FT == 28. A variable-length integer encoding the type of frame that
that triggered the error. triggered the error.
Phrase Length (Length): 1 Variable Length Integer Encoding. A variab Phrase Length (Length): 1 Variable Length Integer Encoding. A variab
le-length integer specifying the length of the reason phrase in le-length integer specifying the length of the reason phrase in
bytes. bytes.
Reason Phrase: Length.Value bytes. A human-readable explanation for Reason Phrase: Length bytes. A human-readable explanation for why
why the connection was closed. the connection was closed.
8.20. HANDSHAKE_DONE frame 8.20. HANDSHAKE_DONE frame
A HANDSHAKE_DONE Frame is formatted as follows: A HANDSHAKE_DONE Frame is formatted as follows:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 30 | | 30 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
where: where:
Frame Type (FT): 1 Variable Length Integer Encoding; FT.Value == Frame Type (FT): 1 Variable Length Integer Encoding; FT == 30. Frame
30. Frame type, set to 30 for HANDSHAKE_DONE frames. type, set to 30 for HANDSHAKE_DONE frames.
9. Informative References 9. Informative References
[QUIC-TRANSPORT] [QUIC-TRANSPORT]
Iyengar, J. and M. Thomson, "QUIC: A UDP-Based Multiplexed Iyengar, J. and M. Thomson, "QUIC: A UDP-Based Multiplexed
and Secure Transport", Work in Progress, Internet-Draft, and Secure Transport", Work in Progress, Internet-Draft,
draft-ietf-quic-transport-27, 21 February 2020, draft-ietf-quic-transport-27, 21 February 2020,
<http://www.ietf.org/internet-drafts/draft-ietf-quic- <http://www.ietf.org/internet-drafts/draft-ietf-quic-
transport-27.txt>. transport-27.txt>.
[AUGMENTED-DIAGRAMS] [AUGMENTED-DIAGRAMS]
McQuistin, S., Band, V., Jacob, D., and C. S. Perkins, McQuistin, S., Band, V., Jacob, D., and C. S. Perkins,
"Describing Protocol Data Units with Augmented Packet "Describing Protocol Data Units with Augmented Packet
Header Diagrams", Work in Progress, Internet-Draft, draft- Header Diagrams", Work in Progress, Internet-Draft, draft-
mcquistin-augmented-ascii-diagrams-05, 17 June 2020, mcquistin-augmented-ascii-diagrams-06, 13 July 2020,
<http://www.ietf.org/internet-drafts/draft-mcquistin- <http://www.ietf.org/internet-drafts/draft-mcquistin-
augmented-ascii-diagrams-05.txt>. augmented-ascii-diagrams-06.txt>.
Appendix A. Source code repository Appendix A. Source code repository
The source for this draft is available from https://github.com/ The source for this draft is available from https://github.com/
glasgow-ipl/draft-mcquistin-quic-augmented-diagrams. glasgow-ipl/draft-mcquistin-quic-augmented-diagrams.
The source code for tooling that can be used to parse this document The source code for tooling that can be used to parse this document
is available from https://github.com/glasgow-ipl/ips-protodesc-code. is available from https://github.com/glasgow-ipl/ips-protodesc-code.
Authors' Addresses Authors' Addresses
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