ipsec: add fast path python tests

This patch introduces set of python tests for fast path, based on
flow cache tests. There was a bug in calculating of policy mask when
adding to fast path, which has been fixed. Memory size for bihash
tables for both ip4 and ip6 outbound fast path policies
has been increased.

Type: feature
Signed-off-by: Piotr Bronowski <piotrx.bronowski@intel.com>
Change-Id: Ibeee904ae7179f5dafbd45bb44282436f0b80821

test/template_ipsec.py

@@ -1888,6 +1888,15 @@ class IPSecIPv4Fwd(VppTestCase):
         policy_type,
         remove=False,
         all_ips=False,
+        ip_range=False,
+        local_ip_start=ip_address("0.0.0.0"),
+        local_ip_stop=ip_address("255.255.255.255"),
+        remote_ip_start=ip_address("0.0.0.0"),
+        remote_ip_stop=ip_address("255.255.255.255"),
+        remote_port_start=0,
+        remote_port_stop=65535,
+        local_port_start=0,
+        local_port_stop=65535,
     ):
         spd = VppIpsecSpd(self, spd_id)
 
@@ -1896,6 +1905,13 @@ class IPSecIPv4Fwd(VppTestCase):
             src_range_high = ip_address("255.255.255.255")
             dst_range_low = ip_address("0.0.0.0")
             dst_range_high = ip_address("255.255.255.255")
+
+        elif ip_range:
+            src_range_low = local_ip_start
+            src_range_high = local_ip_stop
+            dst_range_low = remote_ip_start
+            dst_range_high = remote_ip_stop
+
         else:
             src_range_low = src_if.remote_ip4
             src_range_high = src_if.remote_ip4
@@ -1914,6 +1930,10 @@ class IPSecIPv4Fwd(VppTestCase):
             priority=priority,
             policy=self.get_policy(policy_type),
             is_outbound=is_out,
+            remote_port_start=remote_port_start,
+            remote_port_stop=remote_port_stop,
+            local_port_start=local_port_start,
+            local_port_stop=local_port_stop,
         )
 
         if remove is False: