1 /*
2  * Copyright (C) 1996-2021 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_SRC_IP_TOOLS_H
10 #define _SQUID_SRC_IP_TOOLS_H
11 
12 namespace Ip
13 {
14 
15 /// Probe to discover IPv6 capabilities
16 void ProbeTransport(void);
17 
18 /* Squids notion of IPv6 stack types and state */
19 #define IPV6_OFF  0
20 #define IPV6_ON   1
21 #define IPV6_SPECIAL_V4MAPPING  2
22 #define IPV6_SPECIAL_SPLITSTACK 4
23 
24 /// Whether IPv6 is supported and type of support.
25 extern int EnableIpv6;
26 
27 } // namespace Ip
28 
29 #endif /* _SQUID_SRC_IP_TOOLS_H */
30 
31