From 3728919292c05983372954d27426f7d966813139 Mon Sep 17 00:00:00 2001
From: Colin Watson <cjwatson@debian.org>
Date: Mon, 8 Apr 2019 10:46:29 +0100
Subject: Revert "upstream: Update default IPQoS in ssh(1), sshd(8) to DSCP
 AF21 for"

This reverts commit 5ee8448ad7c306f05a9f56769f95336a8269f379.

The IPQoS default changes have some unfortunate interactions with
iptables (see https://bugs.debian.org/923880) and VMware, so I'm
temporarily reverting them until those have been fixed.

Bug-Debian: https://bugs.debian.org/923879
Bug-Debian: https://bugs.debian.org/926229
Bug-Ubuntu: https://bugs.launchpad.net/bugs/1822370
Last-Update: 2019-04-08

Patch-Name: revert-ipqos-defaults.patch
---
 readconf.c    | 4 ++--
 servconf.c    | 4 ++--
 ssh_config.5  | 6 ++----
 sshd_config.5 | 6 ++----
 4 files changed, 8 insertions(+), 12 deletions(-)

diff --git a/readconf.c b/readconf.c
index e676b6be6..c60df5602 100644
--- a/readconf.c
+++ b/readconf.c
@@ -2298,9 +2298,9 @@ fill_default_options(Options * options)
 	if (options->visual_host_key == -1)
 		options->visual_host_key = 0;
 	if (options->ip_qos_interactive == -1)
-		options->ip_qos_interactive = IPTOS_DSCP_AF21;
+		options->ip_qos_interactive = IPTOS_LOWDELAY;
 	if (options->ip_qos_bulk == -1)
-		options->ip_qos_bulk = IPTOS_DSCP_CS1;
+		options->ip_qos_bulk = IPTOS_THROUGHPUT;
 	if (options->request_tty == -1)
 		options->request_tty = REQUEST_TTY_AUTO;
 	if (options->proxy_use_fdpass == -1)
diff --git a/servconf.c b/servconf.c
index f9eb778d6..98afcfcec 100644
--- a/servconf.c
+++ b/servconf.c
@@ -453,9 +453,9 @@ fill_default_server_options(ServerOptions *options)
 	if (options->permit_tun == -1)
 		options->permit_tun = SSH_TUNMODE_NO;
 	if (options->ip_qos_interactive == -1)
-		options->ip_qos_interactive = IPTOS_DSCP_AF21;
+		options->ip_qos_interactive = IPTOS_LOWDELAY;
 	if (options->ip_qos_bulk == -1)
-		options->ip_qos_bulk = IPTOS_DSCP_CS1;
+		options->ip_qos_bulk = IPTOS_THROUGHPUT;
 	if (options->version_addendum == NULL)
 		options->version_addendum = xstrdup("");
 	if (options->fwd_opts.streamlocal_bind_mask == (mode_t)-1)
diff --git a/ssh_config.5 b/ssh_config.5
index 6d6c59521..080d289a7 100644
--- a/ssh_config.5
+++ b/ssh_config.5
@@ -1156,11 +1156,9 @@ If one argument is specified, it is used as the packet class unconditionally.
 If two values are specified, the first is automatically selected for
 interactive sessions and the second for non-interactive sessions.
 The default is
-.Cm af21
-(Low-Latency Data)
+.Cm lowdelay
 for interactive sessions and
-.Cm cs1
-(Lower Effort)
+.Cm throughput
 for non-interactive sessions.
 .It Cm KbdInteractiveAuthentication
 Specifies whether to use keyboard-interactive authentication.
diff --git a/sshd_config.5 b/sshd_config.5
index 472001dd1..a555e7ec3 100644
--- a/sshd_config.5
+++ b/sshd_config.5
@@ -925,11 +925,9 @@ If one argument is specified, it is used as the packet class unconditionally.
 If two values are specified, the first is automatically selected for
 interactive sessions and the second for non-interactive sessions.
 The default is
-.Cm af21
-(Low-Latency Data)
+.Cm lowdelay
 for interactive sessions and
-.Cm cs1
-(Lower Effort)
+.Cm throughput
 for non-interactive sessions.
 .It Cm KbdInteractiveAuthentication
 Specifies whether to allow keyboard-interactive authentication.
