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-rw-r--r--src/vnet/ip-neighbor/ip_neighbor.api36
-rw-r--r--src/vnet/ip-neighbor/ip_neighbor.c11
-rw-r--r--src/vnet/ip-neighbor/ip_neighbor.h2
-rw-r--r--src/vnet/ip-neighbor/ip_neighbor_api.c26
-rw-r--r--test/test_neighbor.py30
5 files changed, 104 insertions, 1 deletions
diff --git a/src/vnet/ip-neighbor/ip_neighbor.api b/src/vnet/ip-neighbor/ip_neighbor.api
index a04fcbc569e..24cddd42fab 100644
--- a/src/vnet/ip-neighbor/ip_neighbor.api
+++ b/src/vnet/ip-neighbor/ip_neighbor.api
@@ -20,7 +20,7 @@
called through a shared memory interface.
*/
-option version = "1.0.0";
+option version = "1.0.1";
import "vnet/ip/ip_types.api";
import "vnet/ethernet/ethernet_types.api";
@@ -126,6 +126,40 @@ autoreply define ip_neighbor_config
bool recycle;
};
+/** \brief Get neighbor database configuration per AF
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param af - Address family (v4/v6)
+*/
+define ip_neighbor_config_get
+{
+ option in_progress;
+ u32 client_index;
+ u32 context;
+ vl_api_address_family_t af;
+};
+
+/** \brief Neighbor database configuration reply
+ @param context - sender context, to match reply w/ request
+ @param retval - error (0 is "no error")
+ @param af - Address family (v4/v6)
+ @param max_number - The maximum number of neighbours that will be created
+ @param max_age - The maximum age (in seconds) before an inactive neighbour
+ is flushed
+ @param recycle - If max_number of neighbours is reached and new ones need
+ to be created, should the oldest neighbour be 'recycled'
+*/
+define ip_neighbor_config_get_reply
+{
+ option in_progress;
+ u32 context;
+ i32 retval;
+ vl_api_address_family_t af;
+ u32 max_number;
+ u32 max_age;
+ bool recycle;
+};
+
/** \brief IP neighbour replace begin
The use-case is that, for some unspecified reason, the control plane
diff --git a/src/vnet/ip-neighbor/ip_neighbor.c b/src/vnet/ip-neighbor/ip_neighbor.c
index 8e997e4920e..d7450f9cd3e 100644
--- a/src/vnet/ip-neighbor/ip_neighbor.c
+++ b/src/vnet/ip-neighbor/ip_neighbor.c
@@ -1759,6 +1759,17 @@ ip_neighbor_config (ip_address_family_t af, u32 limit, u32 age, bool recycle)
return (0);
}
+int
+ip_neighbor_get_config (ip_address_family_t af, u32 *limit, u32 *age,
+ bool *recycle)
+{
+ *limit = ip_neighbor_db[af].ipndb_limit;
+ *age = ip_neighbor_db[af].ipndb_age;
+ *recycle = ip_neighbor_db[af].ipndb_recycle;
+
+ return (0);
+}
+
static clib_error_t *
ip_neighbor_config_show (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
diff --git a/src/vnet/ip-neighbor/ip_neighbor.h b/src/vnet/ip-neighbor/ip_neighbor.h
index 8c07df86ba8..cc888ba2054 100644
--- a/src/vnet/ip-neighbor/ip_neighbor.h
+++ b/src/vnet/ip-neighbor/ip_neighbor.h
@@ -36,6 +36,8 @@ extern int ip_neighbor_del (const ip_address_t * ip, u32 sw_if_index);
extern int ip_neighbor_config (ip_address_family_t af,
u32 limit, u32 age, bool recycle);
+extern int ip_neighbor_get_config (ip_address_family_t af, u32 *limit,
+ u32 *age, bool *recycle);
extern void ip_neighbor_del_all (ip_address_family_t af, u32 sw_if_index);
diff --git a/src/vnet/ip-neighbor/ip_neighbor_api.c b/src/vnet/ip-neighbor/ip_neighbor_api.c
index 81af86211de..a5ed546f114 100644
--- a/src/vnet/ip-neighbor/ip_neighbor_api.c
+++ b/src/vnet/ip-neighbor/ip_neighbor_api.c
@@ -314,6 +314,32 @@ vl_api_ip_neighbor_config_t_handler (vl_api_ip_neighbor_config_t * mp)
}
static void
+vl_api_ip_neighbor_config_get_t_handler (vl_api_ip_neighbor_config_get_t *mp)
+{
+ vl_api_ip_neighbor_config_get_reply_t *rmp;
+ int rv;
+ ip_address_family_t af = AF_IP4;
+ u32 max_number = ~0;
+ u32 max_age = ~0;
+ bool recycle = false;
+
+ rv = ip_address_family_decode (mp->af, &af);
+
+ if (!rv)
+ rv = ip_neighbor_get_config (af, &max_number, &max_age, &recycle);
+
+ // clang-format off
+ REPLY_MACRO2 (VL_API_IP_NEIGHBOR_CONFIG_GET_REPLY,
+ ({
+ rmp->af = ip_address_family_encode (af);
+ rmp->max_number = htonl (max_number);
+ rmp->max_age = htonl (max_age);
+ rmp->recycle = recycle;
+ }));
+ // clang-format on
+}
+
+static void
vl_api_ip_neighbor_replace_begin_t_handler (vl_api_ip_neighbor_replace_begin_t
* mp)
{
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(