T5704: PPPoE L2TP SSTP IPoE add option max-concurrent-sessions

Add `max-starting` option:

  [common]
  max-starting=N

Specifies maximum concurrent session attempts which server may processed

  set service pppoe-server max-concurrent-sessions '30'

Useful to prevent high CPU utilization and compat execution
scripts per time.

5 files changed, 22 insertions, 1 deletions

diff --git a/data/templates/accel-ppp/ipoe.config.j2 b/data/templates/accel-ppp/ipoe.config.j2
index f59428509..555a033d3 100644
--- a/data/templates/accel-ppp/ipoe.config.j2
+++ b/data/templates/accel-ppp/ipoe.config.j2
@@ -14,6 +14,11 @@ ippool
 [core]
 thread-count={{ thread_count }}
 
+[common]
+{% if max_concurrent_sessions is vyos_defined %}
+max-starting={{ max_concurrent_sessions }}
+{% endif %}
+
 [log]
 syslog=accel-ipoe,daemon
 copy=1
diff --git a/data/templates/accel-ppp/l2tp.config.j2 b/data/templates/accel-ppp/l2tp.config.j2
index a2f9c9fc7..b089d3e71 100644
--- a/data/templates/accel-ppp/l2tp.config.j2
+++ b/data/templates/accel-ppp/l2tp.config.j2
@@ -20,6 +20,11 @@ ipv6_dhcp
 [core]
 thread-count={{ thread_cnt }}
 
+[common]
+{% if max_concurrent_sessions is vyos_defined %}
+max-starting={{ max_concurrent_sessions }}
+{% endif %}
+
 [log]
 syslog=accel-l2tp,daemon
 copy=1
diff --git a/data/templates/accel-ppp/pppoe.config.j2 b/data/templates/accel-ppp/pppoe.config.j2
index dd53edd28..e1ae3660e 100644
--- a/data/templates/accel-ppp/pppoe.config.j2
+++ b/data/templates/accel-ppp/pppoe.config.j2
@@ -62,10 +62,13 @@ wins{{ loop.index }}={{ server }}
 {# Common chap-secrets and RADIUS server/option definitions #}
 {% include 'accel-ppp/config_chap_secrets_radius.j2' %}
 
-{% if session_control is vyos_defined and session_control is not vyos_defined('disable') %}
 [common]
+{% if session_control is vyos_defined and session_control is not vyos_defined('disable') %}
 single-session={{ session_control }}
 {% endif %}
+{% if max_concurrent_sessions is vyos_defined %}
+max-starting={{ max_concurrent_sessions }}
+{% endif %}
 
 [ppp]
 verbose=1
diff --git a/data/templates/accel-ppp/pptp.config.j2 b/data/templates/accel-ppp/pptp.config.j2
index 0082e55bf..46a9f933a 100644
--- a/data/templates/accel-ppp/pptp.config.j2
+++ b/data/templates/accel-ppp/pptp.config.j2
@@ -16,6 +16,11 @@ ippool
 [core]
 thread-count={{ thread_cnt }}
 
+[common]
+{% if max_concurrent_sessions is vyos_defined %}
+max-starting={{ max_concurrent_sessions }}
+{% endif %}
+
 [log]
 syslog=accel-pptp,daemon
 copy=1
diff --git a/data/templates/accel-ppp/sstp.config.j2 b/data/templates/accel-ppp/sstp.config.j2
index 7ee28dd21..cf1d23f54 100644
--- a/data/templates/accel-ppp/sstp.config.j2
+++ b/data/templates/accel-ppp/sstp.config.j2
@@ -16,6 +16,9 @@ thread-count={{ thread_count }}
 
 [common]
 single-session=replace
+{% if max_concurrent_sessions is vyos_defined %}
+max-starting={{ max_concurrent_sessions }}
+{% endif %}
 
 [log]
 syslog=accel-sstp,daemon