From c2c438b98da1b8b6840091f8f1156c23e867c077 Mon Sep 17 00:00:00 2001 From: Linda Lapinlampi Date: Wed, 1 Jun 2022 20:52:00 +0000 Subject: [PATCH] ip2c: Reduce the IPv4 local loopback network from /8 to /16 Drafts have been submitted to IETF standards track reduce the size of IPv4 local loopback network ("localnet") size from /8 to /16, freeing up over 16 million IPv4-addresses as globally routable Unicast addresses on the Internet (or other uses). This is part of a so-called "IPv4 Unicast Extensions Project", started by Seth Schoen. Doomseeker's IP2C code treated 127.0.0.0/8 specially: Servers from those addresses would get assigned a special "Localhost" flag, instead of country data returned from IP2C lookups. Now we only return "Localhost" flags servers for in the 127.0.0.0/16 network. Fixes: #4010 See: https://datatracker.ietf.org/doc/draft-schoen-intarea-unicast-127/ --- src/core/ip2c/ip2c.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/core/ip2c/ip2c.h b/src/core/ip2c/ip2c.h index e5403867..11927578 100644 --- a/src/core/ip2c/ip2c.h +++ b/src/core/ip2c/ip2c.h @@ -177,7 +177,7 @@ private: inline bool isLocalhostAddress(unsigned ipv4Address) { const static unsigned LOCALHOST_BEGIN = QHostAddress("127.0.0.0").toIPv4Address(); - const static unsigned LOCALHOST_END = QHostAddress("127.255.255.255").toIPv4Address(); + const static unsigned LOCALHOST_END = QHostAddress("127.0.255.255").toIPv4Address(); return ipv4Address >= LOCALHOST_BEGIN && ipv4Address <= LOCALHOST_END; } -- 2.36.1