From c90036f6645dea7c19e033c11240567371407017 Mon Sep 17 00:00:00 2001
From: Patrick Strateman <patrick.strateman@gmail.com>
Date: Thu, 17 Mar 2016 17:23:33 -0700
Subject: [PATCH] Always disconnect old nodes which request filtered
 connections.

---
 doc/bips.md  | 2 +-
 src/init.cpp | 2 --
 src/main.cpp | 2 +-
 src/main.h   | 1 -
 4 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/doc/bips.md b/doc/bips.md
index e73add0130..2552a7f03a 100644
--- a/doc/bips.md
+++ b/doc/bips.md
@@ -17,6 +17,6 @@ BIPs that are implemented by Bitcoin Core (up-to-date up to **v0.12.0**):
 * [`BIP 65`](https://github.com/bitcoin/bips/blob/master/bip-0065.mediawiki): The CHECKLOCKTIMEVERIFY softfork was merged in **v0.12.0** ([PR #6351](https://github.com/bitcoin/bitcoin/pull/6351)), and backported to **v0.11.2** and **v0.10.4**. Mempool-only CLTV was added in [PR #6124](https://github.com/bitcoin/bitcoin/pull/6124).
 * [`BIP 66`](https://github.com/bitcoin/bips/blob/master/bip-0066.mediawiki): The strict DER rules and associated version 3 blocks have been implemented since **v0.10.0** ([PR #5713](https://github.com/bitcoin/bitcoin/pull/5713)).
 * [`BIP 70`](https://github.com/bitcoin/bips/blob/master/bip-0070.mediawiki) [`71`](https://github.com/bitcoin/bips/blob/master/bip-0071.mediawiki) [`72`](https://github.com/bitcoin/bips/blob/master/bip-0072.mediawiki): Payment Protocol support has been available in Bitcoin Core GUI since **v0.9.0** ([PR #5216](https://github.com/bitcoin/bitcoin/pull/5216)).
-* [`BIP 111`](https://github.com/bitcoin/bips/blob/master/bip-0111.mediawiki): `NODE_BLOOM` service bit added, but only enforced for peer versions `>=70011` as of **v0.12.0** ([PR #6579](https://github.com/bitcoin/bitcoin/pull/6579)).
+* [`BIP 111`](https://github.com/bitcoin/bips/blob/master/bip-0111.mediawiki): `NODE_BLOOM` service bit added, and enforced for all peer versions as of **v0.13.0** ([PR #6579](https://github.com/bitcoin/bitcoin/pull/6579) and [PR #6641](https://github.com/bitcoin/bitcoin/pull/6641)).
 * [`BIP 125`](https://github.com/bitcoin/bips/blob/master/bip-0125.mediawiki): Opt-in full replace-by-fee signaling honoured in mempool and mining as of **v0.12.0** ([PR 6871](https://github.com/bitcoin/bitcoin/pull/6871)).
 * [`BIP 130`](https://github.com/bitcoin/bips/blob/master/bip-0130.mediawiki): direct headers announcement is negotiated with peer versions `>=70012` as of **v0.12.0** ([PR 6494](https://github.com/bitcoin/bitcoin/pull/6494)).
diff --git a/src/init.cpp b/src/init.cpp
index 637b69ab05..96bb26f6ec 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -369,8 +369,6 @@ std::string HelpMessage(HelpMessageMode mode)
     strUsage += HelpMessageOpt("-onlynet=<net>", _("Only connect to nodes in network <net> (ipv4, ipv6 or onion)"));
     strUsage += HelpMessageOpt("-permitbaremultisig", strprintf(_("Relay non-P2SH multisig (default: %u)"), DEFAULT_PERMIT_BAREMULTISIG));
     strUsage += HelpMessageOpt("-peerbloomfilters", strprintf(_("Support filtering of blocks and transaction with bloom filters (default: %u)"), DEFAULT_PEERBLOOMFILTERS));
-    if (showDebug)
-        strUsage += HelpMessageOpt("-enforcenodebloom", strprintf("Enforce minimum protocol version to limit use of bloom filters (default: %u)", DEFAULT_ENFORCENODEBLOOM));
     strUsage += HelpMessageOpt("-port=<port>", strprintf(_("Listen for connections on <port> (default: %u or testnet: %u)"), Params(CBaseChainParams::MAIN).GetDefaultPort(), Params(CBaseChainParams::TESTNET).GetDefaultPort()));
     strUsage += HelpMessageOpt("-proxy=<ip:port>", _("Connect through SOCKS5 proxy"));
     strUsage += HelpMessageOpt("-proxyrandomize", strprintf(_("Randomize credentials for every proxy connection. This enables Tor stream isolation (default: %u)"), DEFAULT_PROXYRANDOMIZE));
diff --git a/src/main.cpp b/src/main.cpp
index 027a36394c..d74c88d235 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -4377,7 +4377,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
         if (pfrom->nVersion >= NO_BLOOM_VERSION) {
             Misbehaving(pfrom->GetId(), 100);
             return false;
-        } else if (GetBoolArg("-enforcenodebloom", DEFAULT_ENFORCENODEBLOOM)) {
+        } else {
             pfrom->fDisconnect = true;
             return false;
         }
diff --git a/src/main.h b/src/main.h
index 5ba2be251c..7230d326e6 100644
--- a/src/main.h
+++ b/src/main.h
@@ -122,7 +122,6 @@ static const bool DEFAULT_ENABLE_REPLACEMENT = true;
 static const unsigned int MAX_BLOCKS_TO_ANNOUNCE = 8;
 
 static const bool DEFAULT_PEERBLOOMFILTERS = true;
-static const bool DEFAULT_ENFORCENODEBLOOM = false;
 
 struct BlockHasher
 {