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DOC: Protocol doc: add noop TLV

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Add definition of the PP2_TYPE_NOOP TLV which can be used for data
padding and alignment.
This commit is contained in:
Andriy Palamarchuk 2017-03-23 16:30:24 -04:00 committed by Willy Tarreau
parent 01105ac3a8
commit 1a943c48fb
1 changed files with 14 additions and 6 deletions
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doc/proxy-protocol.txt
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@ -23,9 +23,9 @@ Revision history
2014/06/14 - fix v2 header check in example code, and update Forwarded spec
2014/07/12 - update list of implementations (add Squid)
2015/05/02 - update list of implementations and format of the TLV add-ons
2017/03/10 - added the checksum and more SSL-related TLV types, reserved TLV
type ranges, added TLV documentation, clarified string
encoding. With contributions from Andriy Palamarchuk
2017/03/10 - added the checksum, noop and more SSL-related TLV types,
reserved TLV type ranges, added TLV documentation, clarified
string encoding. With contributions from Andriy Palamarchuk
(Amazon.com).
@ -537,6 +537,7 @@ The following types have already been registered for the <type> field :
#define PP2_TYPE_ALPN 0x01
#define PP2_TYPE_AUTHORITY 0x02
#define PP2_TYPE_CRC32C 0x03
#define PP2_TYPE_NOOP 0x04
#define PP2_TYPE_SSL 0x20
#define PP2_SUBTYPE_SSL_VERSION 0x21
#define PP2_SUBTYPE_SSL_CN 0x22
@ -594,7 +595,14 @@ functionality is supported by the receiver, the receiver MUST:
The default procedure for handling an invalid TCP connection is to abort it.
2.2.4. The PP2_TYPE_SSL type and subtypes
2.2.4. PP2_TYPE_NOOP
The TLV of this type should be ignored when parsed. The value is zero or more
bytes. Can be used for data padding or alignment. Note that it can be used
to align only by 3 or more bytes because a TLV can not be smaller than that.
2.2.5. The PP2_TYPE_SSL type and subtypes
For the type PP2_TYPE_SSL, the value is itself a defined like this :
@ -646,13 +654,13 @@ In all cases, the string representation (in UTF8) of the Common Name field
using the TLV format and the type PP2_SUBTYPE_SSL_CN. E.g. "example.com".
2.2.5. The PP2_TYPE_NETNS type
2.2.6. The PP2_TYPE_NETNS type
The type PP2_TYPE_NETNS defines the value as the US-ASCII string representation
of the namespace's name.
2.2.6. Reserved type ranges
2.2.7. Reserved type ranges
The following range of 16 type values is reserved for application-specific
data and will be never used by the PROXY Protocol. If you need more values