Elements.h
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1/*
2 * Copyright (C) 1996-2022 The Squid Software Foundation and contributors
3 *
4 * Squid software is distributed under GPLv2+ license and includes
5 * contributions from numerous individuals and organizations.
6 * Please see the COPYING and CONTRIBUTORS files for details.
7 */
8
9#ifndef SQUID_PROXYP_ELEMENTS_H
10#define SQUID_PROXYP_ELEMENTS_H
11
12#include "sbuf/SBuf.h"
13
14// https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt
15namespace ProxyProtocol {
16namespace Two {
17
19typedef enum {
20 htUnknown = 0x00,
21
22 // The PROXY protocol specs list these TLV types as already registered.
23 htAlpn = 0x01, // PP2_TYPE_ALPN
24 htAuthority = 0x02, // PP2_TYPE_AUTHORITY
25 htCrc32c = 0x03, // PP2_TYPE_CRC32C
26 htNoop = 0x04, // PP2_TYPE_NOOP
27 htSsl = 0x20, // PP2_TYPE_SSL
28 htSslVersion = 0x21, // PP2_SUBTYPE_SSL_VERSION
29 htSslCn = 0x22, // PP2_SUBTYPE_SSL_CN
30 htSslCipher = 0x23, // PP2_SUBTYPE_SSL_CIPHER
31 htSslSigAlg = 0x24, // PP2_SUBTYPE_SSL_SIG_ALG
32 htSslKeyAlg = 0x25, // PP2_SUBTYPE_SSL_KEY_ALG
33 htNetns = 0x30, // PP2_TYPE_NETNS
34
35 // IDs for PROXY protocol header pseudo-headers.
36 // Larger than 255 to avoid clashes with possible TLV type IDs.
37 htPseudoBegin = 0x101, // smallest pseudo-header value (for iteration)
44 htPseudoEnd // largest pseudo-header value plus 1 (for iteration)
46
48typedef enum {
49 cmdLocal = 0x00,
50 cmdProxy = 0x01
52
53typedef enum {
56 afInet = 0x1,
57 afInet6 = 0x2,
58 afUnix = 0x3
60
61typedef enum {
63 tpStream = 0x1,
64 tpDgram = 0x2
66
68class Tlv
69{
70public:
71 typedef uint8_t value_type;
72
73 Tlv(const value_type t, const SBuf &val): value(val), type(t) {}
74
77};
78
79} // namespace Two
80
84
88
89} // namespace ProxyProtocol
90
91#endif
92
a single Type-Length-Value (TLV) block from PROXY protocol specs
Definition: Elements.h:69
Tlv(const value_type t, const SBuf &val)
Definition: Elements.h:73
Definition: SBuf.h:94
Command
PROXY protocol 'command' field value.
Definition: Elements.h:48
FieldType
numeric IDs of registered PROXY protocol TLV types and pseudo headers
Definition: Elements.h:19
@ afUnspecified
corresponds to a local connection or an unsupported protocol family
Definition: Elements.h:55
const SBuf & PseudoFieldTypeToFieldName(const Two::FieldType)
Definition: Elements.cc:40
Two::FieldType FieldNameToFieldType(const SBuf &nameOrId)
Definition: Elements.cc:102

 

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