sla: T4222: Add OWAMP and TWAMP for service sla

OWAMP is a command line client application and a policy daemon used
to determine one way latencies between hosts.
OWAMP session control uses traditional client-server communication
between a control-client and a server,
TWAMP (two-way active measurement protocol)
Add configuration and operation modes

set service sla owamp-server
set service sla twamp-server
run force owping 192.0.2.120
run force twping 192.0.2.190

4 files changed, 70 insertions, 0 deletions

diff --git a/data/templates/sla/owamp-override.conf.j2 b/data/templates/sla/owamp-override.conf.j2
new file mode 100644
index 000000000..b5ec161d4
--- /dev/null
+++ b/data/templates/sla/owamp-override.conf.j2
@@ -0,0 +1,16 @@
+[Unit]
+Description==OWAMP server
+After=vyos-router.service
+# Only start if there is a configuration file
+ConditionFileNotEmpty=/etc/owamp-server/owamp-server.conf
+
+[Service]
+KillMode=process
+Type=simple
+ExecStart=/usr/sbin/owampd -c /etc/owamp-server -R /var/run
+ExecReload=/bin/kill -HUP $MAINPID
+PIDFile=/run/owamp-server.pid
+LimitNOFILE=4096
+
+[Install]
+WantedBy=multi-user.target
diff --git a/data/templates/sla/owamp-server.conf.j2 b/data/templates/sla/owamp-server.conf.j2
new file mode 100644
index 000000000..6af963e57
--- /dev/null
+++ b/data/templates/sla/owamp-server.conf.j2
@@ -0,0 +1,20 @@
+### Autogenerated by service_twamp-server.py ###
+
+user   owamp
+group  owamp
+
+verbose
+vardir /var/run
+
+# location for "recv" session files.
+# The "catalog" subdirectory is completely cleaned and recreated each time
+datadir  /var/lib/owamp
+
+srcnode :{{ port }}
+
+# This is used to limit testing to a specific port range. The valid values are:
+# 0	(twampd will let the system to pick the port number (ephemeral)
+# low-high	(A range. high must be larger than low.)
+testports 8760-9960
+
+diskfudge 3.0
diff --git a/data/templates/sla/twamp-override.conf.j2 b/data/templates/sla/twamp-override.conf.j2
new file mode 100644
index 000000000..34bbd228b
--- /dev/null
+++ b/data/templates/sla/twamp-override.conf.j2
@@ -0,0 +1,16 @@
+[Unit]
+Description==TWAMP server
+After=vyos-router.service
+# Only start if there is a configuration file
+ConditionFileNotEmpty=/etc/twamp-server/twamp-server.conf
+
+[Service]
+KillMode=process
+Type=simple
+ExecStart=/usr/sbin/twampd -c /etc/twamp-server -R /var/run
+ExecReload=/bin/kill -HUP $MAINPID
+PIDFile=/run/twamp-server.pid
+LimitNOFILE=4096
+
+[Install]
+WantedBy=multi-user.target
diff --git a/data/templates/sla/twamp-server.conf.j2 b/data/templates/sla/twamp-server.conf.j2
new file mode 100644
index 000000000..ea5bbb54a
--- /dev/null
+++ b/data/templates/sla/twamp-server.conf.j2
@@ -0,0 +1,18 @@
+### Autogenerated by service_twamp-server.py ###
+
+user   twamp
+group  twamp
+
+verbose
+vardir /var/run
+
+# location for "recv" session files.
+# The "catalog" subdirectory is completely cleaned and recreated each time
+datadir  /var/lib/twamp
+
+srcnode :{{ port }}
+
+# This is used to limit testing to a specific port range. The valid values are:
+# 0	(twampd will let the system to pick the port number (ephemeral)
+# low-high	(A range. high must be larger than low.)
+testports 18760-19960