diff options
| author | Jeremy Harris <jgh146exb@wizmail.org> | 2017-08-30 23:52:40 +0100 |
|---|---|---|
| committer | Jeremy Harris <jgh146exb@wizmail.org> | 2017-08-31 16:16:51 +0100 |
| commit | a2673768b71ee86c71e16e46d53d0ffc4f66b0de (patch) | |
| tree | da233bde5ae8f8ba16d7447411a3fefbf223d8db /test/scripts/1990-TCP-Fast-Open | |
| parent | a5853d7c97b23bf0e4c4438a3ac3f67f28292d6c (diff) | |
Logging: TCP Fast Open
Diffstat (limited to 'test/scripts/1990-TCP-Fast-Open')
| -rw-r--r-- | test/scripts/1990-TCP-Fast-Open/1990 | 39 | ||||
| -rw-r--r-- | test/scripts/1990-TCP-Fast-Open/REQUIRES | 1 |
2 files changed, 40 insertions, 0 deletions
diff --git a/test/scripts/1990-TCP-Fast-Open/1990 b/test/scripts/1990-TCP-Fast-Open/1990 new file mode 100644 index 000000000..47b77af0e --- /dev/null +++ b/test/scripts/1990-TCP-Fast-Open/1990 @@ -0,0 +1,39 @@ +# TCP Fast Open +# +# Linux: +# Both server and client-side TFO support must be enabled in the +# kernel, 'sudo sh -c "echo 3 > /proc/sys/net/ipv4/tcp_fastopen"'. +# +# A packet capture on the loopback interface will show the TFO +# option on the SYN, but the fast-output SMTP banner will not +# be seen unless you also deliberately emulate a long path: +# 'sudo tc qdisc add dev lo root netem delay 100ms' +# +# First time runs will see a TFO request option only; subsequent +# ones should see the TFO cookie and fast-output SMTP banner +# (currently on a separate packet after the server SYN,ACK but before +# the client ACK). +# +# The log <= line should have a "TFO" element. +# +# If the client-side is disabled in the kernel, Exim logs +# will become noisy. +# +# +# FreeBSD: it looks like you have to compile a custom kernel, with +# 'options TCP_RFC7413' in the config. Also set +# 'net.inet.tcp.fastopen.enabled=1' in /etc/sysctl.conf +# Untested. +# +exim -DSERVER=server -bd -oX PORT_D +**** +exim a@test.ex +Testing +**** +sleep 3 +exim b@test.ex +Testing +**** +sleep 3 +killdaemon +no_msglog_check diff --git a/test/scripts/1990-TCP-Fast-Open/REQUIRES b/test/scripts/1990-TCP-Fast-Open/REQUIRES new file mode 100644 index 000000000..48cd58b67 --- /dev/null +++ b/test/scripts/1990-TCP-Fast-Open/REQUIRES @@ -0,0 +1 @@ +support TCP_Fast_Open |