From 996a98d33f790a1e6af927c02318649feec6061b Mon Sep 17 00:00:00 2001
From: Jeremy Harris <jgh146exb@wizmail.org>
Date: Thu, 31 Dec 2020 21:52:02 +0000
Subject: TFO: better observability (slightly) on FreeBSD

---
 test/runtest                         |  2 +-
 test/scripts/1990-TCP-Fast-Open/1990 | 15 +++++++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

(limited to 'test')

diff --git a/test/runtest b/test/runtest
index b5ace4ee3..1e604e1cd 100755
--- a/test/runtest
+++ b/test/runtest
@@ -3112,7 +3112,7 @@ if (defined $parm_trusted_config_list)
   open(TCL, $parm_trusted_config_list) or die "Can't open $parm_trusted_config_list: $!\n";
   my $test_config = getcwd() . '/test-config';
   die "Can't find '$test_config' in TRUSTED_CONFIG_LIST $parm_trusted_config_list."
-  if not grep { /^\Q$test_config\E$/ } <TCL>;
+    if not grep { /^\Q$test_config\E$/ } <TCL>;
   }
 else
   {
diff --git a/test/scripts/1990-TCP-Fast-Open/1990 b/test/scripts/1990-TCP-Fast-Open/1990
index 80059e685..d2c7b75f9 100644
--- a/test/scripts/1990-TCP-Fast-Open/1990
+++ b/test/scripts/1990-TCP-Fast-Open/1990
@@ -27,6 +27,14 @@
 # 'net.inet.tcp.fastopen.server_enable=1' in /etc/sysctl.conf
 # Seems to always claim TFO used by transport, if tried.
 #
+# FreeBSD: tried this setup, but we only get the banner captured 100ms after 3rd-ack:
+# #kenv net.inet.ip.fw.default_to_accept=1
+# #kldload ipfw dummynet
+# #ipfw add 00097 pipe 1 ip from 127.0.0.1 to 127.0.0.1
+# #ipfw pipe 1 config delay 50ms
+# Also, the VM managed to lose the ipv4 & 6 addrs on its main interface
+# after a while - so not usable in production
+#
 sudo perl
 system ("tc qdisc add dev lo root netem delay 50ms");
 ****
@@ -50,7 +58,14 @@ system ("[ -e /proc/sys/net/ipv4/tcp_fastopen_blackhole_timeout_sec ] && echo 0
 #
 # First clear any previously-obtained cookie:
 sudo perl
+open(INFO, "-|", "/usr/bin/uname -s");
+$_ = <INFO>;
+if (/^FreeBSD/) {
+system("sysctl net.inet.tcp.fastopen.client_enable=0"); system("sysctl net.inet.tcp.fastopen.client_enable=1");
+} else {
 system ("ip tcp_metrics delete 127.0.0.1");
+}
+
 ****
 #
 #
-- 
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