From d32148567f5866a7cd2a77a2f44f846134011c9c Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Mon, 2 Apr 2012 17:06:11 +0200 Subject: Preliminary support for Tor/I2P hidden services There are plans to let Bitcoin function as Tor/I2P hidden service. To do so, we could use the established encoding provided by OnionCat and GarliCat (without actually using those tools) to embed Tor/I2P addresses in IPv6. This patch makes these addresses considered routable, so they can travel over the Bitcoin network in 'addr' messages. This will hopefully make it easier to deploy real hidden service support later. --- src/netbase.cpp | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'src/netbase.cpp') diff --git a/src/netbase.cpp b/src/netbase.cpp index a22d42a96..37e6120e7 100644 --- a/src/netbase.cpp +++ b/src/netbase.cpp @@ -615,6 +615,18 @@ bool CNetAddr::IsRFC4843() const return (GetByte(15) == 0x20 && GetByte(14) == 0x01 && GetByte(13) == 0x00 && (GetByte(12) & 0xF0) == 0x10); } +bool CNetAddr::IsOnionCat() const +{ + static const unsigned char pchOnionCat[] = {0xFD,0x87,0xD8,0x7E,0xEB,0x43}; + return (memcmp(ip, pchOnionCat, sizeof(pchOnionCat)) == 0); +} + +bool CNetAddr::IsGarliCat() const +{ + static const unsigned char pchGarliCat[] = {0xFD,0x60,0xDB,0x4D,0xDD,0xB5}; + return (memcmp(ip, pchGarliCat, sizeof(pchGarliCat)) == 0); +} + bool CNetAddr::IsLocal() const { // IPv4 loopback @@ -673,7 +685,7 @@ bool CNetAddr::IsValid() const bool CNetAddr::IsRoutable() const { - return IsValid() && !(IsRFC1918() || IsRFC3927() || IsRFC4862() || IsRFC4193() || IsRFC4843() || IsLocal()); + return IsValid() && !(IsRFC1918() || IsRFC3927() || IsRFC4862() || (IsRFC4193() && !IsOnionCat() && !IsGarliCat()) || IsRFC4843() || IsLocal()); } std::string CNetAddr::ToStringIP() const -- cgit v1.2.3