ip-neighbor: add api for getting neighbor db config

There is an API call to change neighbor database configuration (i.e.
limit on peer number, aging, and recycling). With this change, make
getting current values of these settings available via the API.

Type: improvement

Change-Id: Ie9394e086b68cf9b28ad98dea162f203f8043cbb
Signed-off-by: Alexander Chernavin <achernavin@netgate.com>

1 files changed, 30 insertions, 0 deletions

diff --git a/test/test_neighbor.py b/test/test_neighbor.py
index f663e735d78..b600a97c3c2 100644
--- a/test/test_neighbor.py
+++ b/test/test_neighbor.py
@@ -2247,6 +2247,14 @@ class NeighborAgeTestCase(VppTestCase):
         self.assertEqual(arp.psrc, sip)
         self.assertEqual(arp.pdst, dip)
 
+    def verify_ip_neighbor_config(self, af, max_number, max_age, recycle):
+        config = self.vapi.ip_neighbor_config_get(af)
+
+        self.assertEqual(config.af, af)
+        self.assertEqual(config.max_number, max_number)
+        self.assertEqual(config.max_age, max_age)
+        self.assertEqual(config.recycle, recycle)
+
     def test_age(self):
         """Aging/Recycle"""
 
@@ -2263,6 +2271,13 @@ class NeighborAgeTestCase(VppTestCase):
         self.pg_enable_capture(self.pg_interfaces)
 
         #
+        # Verify neighbor configuration defaults
+        #
+        self.verify_ip_neighbor_config(
+            af=vaf.ADDRESS_IP4, max_number=50000, max_age=0, recycle=False
+        )
+
+        #
         # Set the neighbor configuration:
         #   limi = 200
         #   age  = 0 seconds
@@ -2271,6 +2286,9 @@ class NeighborAgeTestCase(VppTestCase):
         self.vapi.ip_neighbor_config(
             af=vaf.ADDRESS_IP4, max_number=200, max_age=0, recycle=False
         )
+        self.verify_ip_neighbor_config(
+            af=vaf.ADDRESS_IP4, max_number=200, max_age=0, recycle=False
+        )
 
         self.vapi.cli("sh ip neighbor-config")
 
@@ -2298,6 +2316,9 @@ class NeighborAgeTestCase(VppTestCase):
         self.vapi.ip_neighbor_config(
             af=vaf.ADDRESS_IP4, max_number=200, max_age=0, recycle=True
         )
+        self.verify_ip_neighbor_config(
+            af=vaf.ADDRESS_IP4, max_number=200, max_age=0, recycle=True
+        )
 
         # now new additions are allowed
         VppNeighbor(
@@ -2321,6 +2342,9 @@ class NeighborAgeTestCase(VppTestCase):
         self.vapi.ip_neighbor_config(
             af=vaf.ADDRESS_IP4, max_number=200, max_age=2, recycle=True
         )
+        self.verify_ip_neighbor_config(
+            af=vaf.ADDRESS_IP4, max_number=200, max_age=2, recycle=True
+        )
 
         self.vapi.cli("sh ip4 neighbor-sorted")
 
@@ -2399,6 +2423,9 @@ class NeighborAgeTestCase(VppTestCase):
         self.vapi.ip_neighbor_config(
             af=vaf.ADDRESS_IP4, max_number=200, max_age=1000, recycle=True
         )
+        self.verify_ip_neighbor_config(
+            af=vaf.ADDRESS_IP4, max_number=200, max_age=1000, recycle=True
+        )
 
         #
         # load up some neighbours again, then disable the aging
@@ -2414,6 +2441,9 @@ class NeighborAgeTestCase(VppTestCase):
         self.vapi.ip_neighbor_config(
             af=vaf.ADDRESS_IP4, max_number=200, max_age=0, recycle=False
         )
+        self.verify_ip_neighbor_config(
+            af=vaf.ADDRESS_IP4, max_number=200, max_age=0, recycle=False
+        )
 
         self.virtual_sleep(10)
         self.assertTrue(