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-rw-r--r--src/net.cpp25
1 files changed, 16 insertions, 9 deletions
diff --git a/src/net.cpp b/src/net.cpp
index 281232d801..0233b0fc2f 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -1010,17 +1010,24 @@ void CConnman::AcceptConnection(const ListenSocket& hListenSocket) {
// on all platforms. Set it again here just to be sure.
SetSocketNoDelay(hSocket);
- int bannedlevel = m_banman ? m_banman->IsBannedLevel(addr) : 0;
-
- // Don't accept connections from banned peers, but if our inbound slots aren't almost full, accept
- // if the only banning reason was an automatic misbehavior ban.
- if (!NetPermissions::HasFlag(permissionFlags, NetPermissionFlags::PF_NOBAN) && bannedlevel > ((nInbound + 1 < nMaxInbound) ? 1 : 0))
+ // Don't accept connections from banned peers.
+ bool banned = m_banman->IsBanned(addr);
+ if (!NetPermissions::HasFlag(permissionFlags, NetPermissionFlags::PF_NOBAN) && banned)
{
LogPrint(BCLog::NET, "connection from %s dropped (banned)\n", addr.ToString());
CloseSocket(hSocket);
return;
}
+ // Only accept connections from discouraged peers if our inbound slots aren't (almost) full.
+ bool discouraged = m_banman->IsDiscouraged(addr);
+ if (!NetPermissions::HasFlag(permissionFlags, NetPermissionFlags::PF_NOBAN) && nInbound + 1 >= nMaxInbound && discouraged)
+ {
+ LogPrint(BCLog::NET, "connection from %s dropped (discouraged)\n", addr.ToString());
+ CloseSocket(hSocket);
+ return;
+ }
+
if (nInbound >= nMaxInbound)
{
if (!AttemptToEvictConnection()) {
@@ -1044,7 +1051,7 @@ void CConnman::AcceptConnection(const ListenSocket& hListenSocket) {
pnode->m_permissionFlags = permissionFlags;
// If this flag is present, the user probably expect that RPC and QT report it as whitelisted (backward compatibility)
pnode->m_legacyWhitelisted = legacyWhitelisted;
- pnode->m_prefer_evict = bannedlevel > 0;
+ pnode->m_prefer_evict = discouraged;
m_msgproc->InitializeNode(pnode);
LogPrint(BCLog::NET, "connection from %s accepted\n", addr.ToString());
@@ -2045,10 +2052,10 @@ void CConnman::OpenNetworkConnection(const CAddress& addrConnect, bool fCountFai
return;
}
if (!pszDest) {
- if (IsLocal(addrConnect) ||
- FindNode(static_cast<CNetAddr>(addrConnect)) || (m_banman && m_banman->IsBanned(addrConnect)) ||
- FindNode(addrConnect.ToStringIPPort()))
+ bool banned_or_discouraged = m_banman && (m_banman->IsDiscouraged(addrConnect) || m_banman->IsBanned(addrConnect));
+ if (IsLocal(addrConnect) || FindNode(static_cast<CNetAddr>(addrConnect)) || banned_or_discouraged || FindNode(addrConnect.ToStringIPPort())) {
return;
+ }
} else if (FindNode(std::string(pszDest)))
return;