Fixed admin state config CLI for Backport interfaces (sonic-net#2557)

Fixed admin state config CLI for Backport interfaces
Fixes sonic-net/sonic-buildimage#13057

Author: anamehra

tests/interfaces_test.py

@@ -3,6 +3,7 @@
 
 from click.testing import CliRunner
 from unittest import mock
+from utilities_common.intf_filter import parse_interface_in_filter
 
 import show.main as show
 
@@ -315,6 +316,27 @@ def test_supervisor_show_interfaces_alias_etp1_without_waring(self):
         print(result.output)
         assert result.exit_code != 0
 
+    def test_parse_interface_in_filter(self):
+        intf_filter = "Ethernet0"
+        intf_list = parse_interface_in_filter(intf_filter)
+        assert len(intf_list) == 1
+        assert intf_list[0] == "Ethernet0"
+
+        intf_filter = "Ethernet1-3"
+        intf_list = parse_interface_in_filter(intf_filter)
+        assert len(intf_list) == 3
+        assert intf_list == ["Ethernet1", "Ethernet2", "Ethernet3"]
+
+        intf_filter = "Ethernet-BP10"
+        intf_list = parse_interface_in_filter(intf_filter)
+        assert len(intf_list) == 1
+        assert intf_list[0] == "Ethernet-BP10"
+
+        intf_filter = "Ethernet-BP10-12"
+        intf_list = parse_interface_in_filter(intf_filter)
+        assert len(intf_list) == 3
+        assert intf_list == ["Ethernet-BP10", "Ethernet-BP11", "Ethernet-BP12"]
+
     @classmethod
     def teardown_class(cls):
         print("TEARDOWN")

utilities_common/intf_filter.py

@@ -2,6 +2,7 @@
 
 SONIC_PORT_NAME_PREFIX = "Ethernet"
 SONIC_LAG_NAME_PREFIX = "PortChannel"
+SONIC_BACK_PORT_NAME_PREFIX = "Ethernet-BP"
 
 def parse_interface_in_filter(intf_filter):
     intf_fs = []
@@ -11,7 +12,19 @@ def parse_interface_in_filter(intf_filter):
 
     fs = intf_filter.split(',')
     for x in fs:
-        if '-' in x:
+        if x.startswith(SONIC_BACK_PORT_NAME_PREFIX):
+            intf = SONIC_BACK_PORT_NAME_PREFIX
+            x = x.split(intf)[1]
+            if '-' in x:
+                start = x.split('-')[0]
+                end = x.split('-')[1]
+                if not start.isdigit() or not end.isdigit():
+                    continue
+                for i in range(int(start), int(end)+1):
+                    intf_fs.append(intf+str(i))
+            else:
+                intf_fs.append(intf+x)
+        elif '-' in x:
             # handle range
             if not x.startswith(SONIC_PORT_NAME_PREFIX) and not x.startswith(SONIC_LAG_NAME_PREFIX):
                 continue
@@ -40,4 +53,3 @@ def interface_in_filter(intf, filter):
         return True
 
     return False
-