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Allow UDP for built-in inetd(8) services on 127.0.0.1.

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This restriction was added in year 2000 due to IPv6 compatible and
mapped addresses.  Nowadays our kernel does not support these IPv6
features and blocks localhost addresses on non-loopback interfaces.
Make IPv4 127.0.0.1/8 and IPv6 ::1 behave identically and provide
local services if configured.

OK mvs@ deraadt@
This commit is contained in:
bluhm 2023-09-03 22:01:00 +00:00
parent f4863b1258
commit 1c33b230a8
1 changed files with 2 additions and 2 deletions
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4
usr.sbin/inetd/inetd.c
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@ -1,4 +1,4 @@
/* $OpenBSD: inetd.c,v 1.164 2023/04/19 12:58:16 jsg Exp $ */
/* $OpenBSD: inetd.c,v 1.165 2023/09/03 22:01:00 bluhm Exp $ */
/*
* Copyright (c) 1983,1991 The Regents of the University of California.
@ -444,7 +444,7 @@ dg_badinput(struct sockaddr *sa)
if (IN_MULTICAST(in.s_addr))
goto bad;
switch ((in.s_addr & 0xff000000) >> 24) {
case 0: case 127: case 255:
case 0: case 255:
goto bad;
}
if (dg_broadcast(&in))