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

4 files changed, 8 insertions, 12 deletions

diff --git a/readconf.c b/readconf.c
index e82024678..1b9494d7c 100644
--- a/readconf.c
+++ b/readconf.c
@@ -2230,9 +2230,9 @@ 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 7bbc25c2e..470ad3619 100644
--- a/servconf.c
+++ b/servconf.c
@@ -452,9 +452,9 @@ 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 5c90d3e02..6b4e4f43b 100644
--- a/ssh_config.5
+++ b/ssh_config.5
@@ -1133,11 +1133,9 @@ 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 b8bea2ad7..fd205e418 100644
--- a/sshd_config.5
+++ b/sshd_config.5
@@ -907,11 +907,9 @@ 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.