Fix show ip route summary on pizzabox platforms (sonic-net#1302)

Handling of "show ip/v6 route xxxx" for non-multi-asic platforms to be handled by FRR completely instead of using the common code added to support multi-asic platform.

Author: gechiang

setup.py

@@ -58,6 +58,7 @@
                   'mock_tables/*.json',
                   'mock_tables/asic0/*.json',
                   'mock_tables/asic1/*.json',
+                  'mock_tables/asic2/*.json',
                   'filter_fdb_input/*',
                   'pfcwd_input/*',
                   'wm_input/*']

show/bgp_common.py

@@ -330,6 +330,7 @@ def show_routes(args, namespace, display, verbose, ipver):
     device = multi_asic_util.MultiAsic(display, namespace)
     arg_strg = ""
     found_json = 0
+    found_tables = 0
     ns_l = []
     print_ns_str = False
     filter_by_ip = False
@@ -356,14 +357,22 @@ def show_routes(args, namespace, display, verbose, ipver):
         arg_strg += str(arg) + " "
         if str(arg) == "json":
             found_json = 1
+        elif str(arg) == "tables":
+            found_tables = 1
         else:
             try:
                 filter_by_ip = ipaddress.ip_network(arg)
             except ValueError:
                 # Not ip address just ignore it
                 pass
-    if not found_json:
-        arg_strg += "json"
+    # Due to options such as "summary" and "tables" are not yet supported in multi-asic platform
+    # we will let FRR handle all the processing instead of handling it here for non multi-asic platform
+    if multi_asic.is_multi_asic():
+        if found_tables:
+            print("% Unknown command: show {} route {}".format(ipver, arg_strg))
+            return
+        if not found_json:
+            arg_strg += "json"
     combined_route = {}
     for ns in ns_l:
         # Need to add "ns" to form bgpX so it is sent to the correct bgpX docker to handle the request
@@ -373,6 +382,8 @@ def show_routes(args, namespace, display, verbose, ipver):
             output = bgp_util.run_bgp_command(cmd, ns)
         else:
             output = bgp_util.run_bgp_command(cmd)
+            print("{}".format(output))
+            return
 
         # in case no output or something went wrong with user specified cmd argument(s) error it out
         # error from FRR always start with character "%"
@@ -394,6 +405,9 @@ def show_routes(args, namespace, display, verbose, ipver):
         else:
             combined_route = route_info
 
+    if not combined_route:
+        return
+
     if not found_json:
         #print out the header if this is not a json request
         if not filter_by_ip:

tests/conftest.py

@@ -8,7 +8,7 @@
 from swsssdk import ConfigDBConnector
 
 from .mock_tables import dbconnector
-
+from . import show_ip_route_common
 
 test_path = os.path.dirname(os.path.abspath(__file__))
 modules_path = os.path.dirname(test_path)
@@ -85,21 +85,6 @@ def setup_single_bgp_instance(request):
     elif request.param == 'v6':
         bgp_mocked_json = os.path.join(
             test_path, 'mock_tables', 'ipv6_bgp_summary.json')
-    elif request.param == 'ip_route':
-        bgp_mocked_json = os.path.join(
-            test_path, 'mock_tables', 'ip_route.json')
-    elif request.param == 'ip_specific_route':
-        bgp_mocked_json = os.path.join(
-            test_path, 'mock_tables', 'ip_specific_route.json')
-    elif request.param == 'ip_special_route':
-        bgp_mocked_json = os.path.join(
-            test_path, 'mock_tables', 'ip_special_route.json')
-    elif request.param == 'ipv6_route':
-        bgp_mocked_json = os.path.join(
-            test_path, 'mock_tables', 'ipv6_route.json')
-    elif request.param == 'ipv6_specific_route':
-        bgp_mocked_json = os.path.join(
-            test_path, 'mock_tables', 'ipv6_specific_route.json')
     else:
         bgp_mocked_json = os.path.join(
             test_path, 'mock_tables', 'dummy.json')
@@ -111,12 +96,28 @@ def mock_run_bgp_command(vtysh_cmd, bgp_namespace):
             return mock_frr_data
         return ""
 
-    def mock_run_bgp_ipv6_err_command(vtysh_cmd, bgp_namespace):
-        return "% Unknown command: show ipv6 route garbage"
+    def mock_run_show_ip_route_commands(request):
+        if request.param == 'ipv6_route_err':
+            return show_ip_route_common.show_ipv6_route_err_expected_output
+        elif request.param == 'ip_route':
+            return show_ip_route_common.show_ip_route_expected_output
+        elif request.param == 'ip_specific_route':
+            return show_ip_route_common.show_specific_ip_route_expected_output 
+        elif request.param == 'ip_special_route':
+            return show_ip_route_common.show_special_ip_route_expected_output
+        elif request.param == 'ipv6_route':
+            return show_ip_route_common.show_ipv6_route_expected_output
+        elif request.param == 'ipv6_specific_route':
+            return show_ip_route_common.show_ipv6_route_single_json_expected_output
+        else:
+            return ""
+
 
-    if request.param == 'ipv6_route_err':
+    if any ([request.param == 'ipv6_route_err', request.param == 'ip_route',\
+             request.param == 'ip_specific_route', request.param == 'ip_special_route',\
+             request.param == 'ipv6_route', request.param == 'ipv6_specific_route']):
         bgp_util.run_bgp_command = mock.MagicMock(
-            return_value=mock_run_bgp_ipv6_err_command("", ""))
+            return_value=mock_run_show_ip_route_commands(request))
     else:
         bgp_util.run_bgp_command = mock.MagicMock(
             return_value=mock_run_bgp_command("", ""))
@@ -134,6 +135,12 @@ def setup_multi_asic_bgp_instance(request):
         m_asic_json_file = 'ipv6_specific_route.json'
     elif request.param == 'ipv6_route':
         m_asic_json_file = 'ipv6_route.json'
+    elif request.param == 'ip_special_route':
+        m_asic_json_file = 'ip_special_route.json'
+    elif request.param == 'ip_empty_route':
+        m_asic_json_file = 'ip_empty_route.json'
+    elif request.param == 'ip_specific_route_on_1_asic':
+        m_asic_json_file = 'ip_special_route_asic0_only.json'
     else:
         bgp_mocked_json = os.path.join(
             test_path, 'mock_tables', 'dummy.json')