From 090e5b40f1b3ac9ac6209f8996da4d686686a2ac Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Tue, 10 Apr 2012 20:22:04 +0200
Subject: Limited relaying/storing of foreign addresses

Introduce a boolean variable for each "network" (ipv4, ipv6, tor, i2p),
and track whether we are likely to able to connect to it. Addresses in
"addr" messages outside of our network get limited relaying and are not
stored in addrman.
---
 src/netbase.cpp | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'src/netbase.cpp')

diff --git a/src/netbase.cpp b/src/netbase.cpp
index 37e6120e7..4c852f5ee 100644
--- a/src/netbase.cpp
+++ b/src/netbase.cpp
@@ -25,6 +25,14 @@ int nConnectTimeout = 5000;
 
 static const unsigned char pchIPv4[12] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff };
 
+enum Network ParseNetwork(std::string net) {
+    if (net == "ipv4") return NET_IPV4;
+    if (net == "ipv6") return NET_IPV6;
+    if (net == "tor")  return NET_TOR;
+    if (net == "i2p")  return NET_I2P;
+    return NET_UNROUTABLE;
+}
+
 bool static LookupIntern(const char *pszName, std::vector<CNetAddr>& vIP, unsigned int nMaxSolutions, bool fAllowLookup)
 {
     vIP.clear();
@@ -688,6 +696,23 @@ bool CNetAddr::IsRoutable() const
     return IsValid() && !(IsRFC1918() || IsRFC3927() || IsRFC4862() || (IsRFC4193() && !IsOnionCat() && !IsGarliCat()) || IsRFC4843() || IsLocal());
 }
 
+enum Network CNetAddr::GetNetwork() const
+{
+    if (!IsRoutable())
+        return NET_UNROUTABLE;
+
+    if (IsIPv4())
+        return NET_IPV4;
+
+    if (IsOnionCat())
+        return NET_TOR;
+
+    if (IsGarliCat())
+        return NET_I2P;
+
+    return NET_IPV6;
+}
+
 std::string CNetAddr::ToStringIP() const
 {
     if (IsIPv4())
-- 
cgit v1.2.3