[dhcp_relay] Revert cli for dhcp per-interface counter (sonic-net#19154)

* Revert "add show dhcp_relay ipv4 counter entry, fix interface name offset issue (sonic-net#16507)"

This reverts commit 9c1c82e.

* Revert "[dhcp-relay]: dhcp/dhcpv6 per interface counter support (sonic-net#16377)"

This reverts commit a522a63.

* Remove test_show_dhcp_relay_ipv4_counter_with_enabled_dhcp_server

dockers/docker-dhcp-relay/Dockerfile.j2

@@ -19,8 +19,6 @@ RUN apt-get install -y libjsoncpp-dev \
 
 RUN pip3 install psutil
 
-RUN apt-get install -y libjsoncpp-dev
-
 {% if docker_dhcp_relay_debs.strip() -%}
 # Copy built Debian packages
 {{ copy_files("debs/", docker_dhcp_relay_debs.split(' '), "/debs/") }}

dockers/docker-dhcp-relay/cli-plugin-tests/test_show_dhcp6relay_counters.py

@@ -17,21 +17,24 @@
 except KeyError:
     pass
 
-expected_counts_v6 = """\
-  Message Type     Vlan1000(RX)
---------------  ---------------
-
-  Message Type     Vlan1000(TX)
---------------  ---------------
-
-"""
-
-expected_counts_v4 = """\
-  Message Type     Vlan1000(RX)
---------------  ---------------
-
-  Message Type     Vlan1000(TX)
---------------  ---------------
+expected_counts = """\
+       Message Type     Vlan1000
+-------------------  -----------
+            Unknown
+            Solicit
+          Advertise
+            Request
+            Confirm
+              Renew
+             Rebind
+              Reply
+            Release
+            Decline
+        Reconfigure
+Information-Request
+      Relay-Forward
+        Relay-Reply
+          Malformed
 
 """
 
@@ -40,14 +43,5 @@ class TestDhcp6RelayCounters(object):
     def test_show_counts(self):           
         runner = CliRunner()
         result = runner.invoke(show.dhcp6relay_counters.commands["counts"], ["-i Vlan1000"])
-        print(result.output)
-        assert result.output == expected_counts_v6
-
-class TestDhcpRelayCounters(object):
-
-    def test_show_counts(self):           
-        runner = CliRunner()
-        result = runner.invoke(show.dhcp4relay_counters.commands["counts"], ["-i Vlan1000"])
-        print(result.output)
-        assert result.output == expected_counts_v4
+        assert result.output == expected_counts
 

dockers/docker-dhcp-relay/cli-plugin-tests/test_show_dhcp_relay.py

@@ -173,16 +173,6 @@ def test_show_multi_dhcp_relay(test_name, test_data, fs):
     assert result == expected_output
 
 
-def test_show_dhcp_relay_ipv4_counter_with_enabled_dhcp_server():
-    with mock.patch.object(show, "is_dhcp_server_enabled", return_value=True), \
-         mock.patch.object(swsscommon.ConfigDBConnector, "connect", return_value=None), \
-         mock.patch.object(swsscommon.ConfigDBConnector, "get_table", return_value=None), \
-         mock.patch.object(click, "echo", return_value=None) as mock_echo:
-        show.ipv4_counters("Etherner1")
-        expected_param = "Unsupport to check dhcp_relay ipv4 counter when dhcp_server feature is enabled"
-        mock_echo.assert_called_once_with(expected_param)
-
-
 @pytest.mark.parametrize("enable_dhcp_server", [True, False])
 def test_is_dhcp_server_enabled(enable_dhcp_server):
     result = show.is_dhcp_server_enabled({"dhcp_server": {"state": "enabled" if enable_dhcp_server else "disabled"}})

dockers/docker-dhcp-relay/cli/show/plugins/show_dhcp_relay.py

@@ -1,5 +1,4 @@
 import click
-import ast
 from natsort import natsorted
 from tabulate import tabulate
 import show.vlan as show_vlan
@@ -8,20 +7,13 @@
 from swsscommon.swsscommon import ConfigDBConnector
 from swsscommon.swsscommon import SonicV2Connector
 
+
 # STATE_DB Table
-DHCPv4_COUNTER_TABLE = 'DHCP_COUNTER_TABLE'
 DHCPv6_COUNTER_TABLE = 'DHCPv6_COUNTER_TABLE'
 
-# DHCPv4 Counter Messages
-dhcpv4_messages = [
-    "Unknown", "Discover", "Offer", "Request", "Decline", "Ack", "Nack", "Release", "Inform"
-]
-
 # DHCPv6 Counter Messages
-dhcpv6_messages = [
-    "Unknown", "Solicit", "Advertise", "Request", "Confirm", "Renew", "Rebind", "Reply", "Release", 
-    "Decline", "Reconfigure", "Information-Request", "Relay-Forward", "Relay-Reply", "Malformed"
-]
+messages = ["Unknown", "Solicit", "Advertise", "Request", "Confirm", "Renew", "Rebind", "Reply", "Release", "Decline",
+            "Reconfigure", "Information-Request", "Relay-Forward", "Relay-Reply", "Malformed"]
 
 # DHCP_RELAY Config Table
 DHCP_RELAY = 'DHCP_RELAY'
@@ -47,80 +39,6 @@ def get_dhcp_helper_address(ctx, vlan):
 
 show_vlan.VlanBrief.register_column('DHCP Helper Address', get_dhcp_helper_address)
 
-class DHCPv4_Counter(object):
-    def __init__(self):
-        self.db = SonicV2Connector(use_unix_socket_path=False)
-        self.db.connect(self.db.STATE_DB)
-        self.table_name = DHCPv4_COUNTER_TABLE + self.db.get_db_separator(self.db.STATE_DB)
-
-    def get_interface(self):
-        """ Get all names of all interfaces in DHCPv4_COUNTER_TABLE """
-        interfaces = []
-        for key in self.db.keys(self.db.STATE_DB):
-            if DHCPv4_COUNTER_TABLE in key:
-                interfaces.append(key[19:])
-        return interfaces
-
-    def get_dhcp4relay_msg_count(self, interface, dir):
-        """ Get count of a dhcprelay message """
-        value = self.db.get(self.db.STATE_DB, self.table_name + str(interface), str(dir))
-        cnts = ast.literal_eval(str(value))
-        data = []
-        if cnts is not None:
-            for k, v in cnts.items():
-                data.append([k, v])
-        return data
-
-    def clear_table(self, interface):
-        """ Reset all message counts to 0 """
-        v4_cnts = {}
-        for msg in dhcpv4_messages:
-            v4_cnts[msg] = '0'
-        self.db.set(self.db.STATE_DB, self.table_name + str(interface), str("RX"), str(v4_cnts))
-        self.db.set(self.db.STATE_DB, self.table_name + str(interface), str("TX"), str(v4_cnts))
-
-def print_dhcpv4_count(counter, intf):
-    """Print count of each message"""
-    rx_data = counter.get_dhcp4relay_msg_count(intf, "RX")
-    print(tabulate(rx_data, headers=["Message Type", intf+"(RX)"], tablefmt='simple', stralign='right') + "\n")
-    tx_data = counter.get_dhcp4relay_msg_count(intf, "TX")
-    print(tabulate(tx_data, headers=["Message Type", intf+"(TX)"], tablefmt='simple', stralign='right') + "\n")
-
-#
-# 'dhcp4relay_counters' group ###
-#
-
-
-@click.group(cls=clicommon.AliasedGroup, name="dhcp4relay_counters")
-def dhcp4relay_counters():
-    """Show DHCPv4 counter"""
-    pass
-
-
-def ipv4_counters(interface):
-    config_db.connect()
-    feature_tbl = config_db.get_table("FEATURE")
-    if is_dhcp_server_enabled(feature_tbl):
-        click.echo("Unsupport to check dhcp_relay ipv4 counter when dhcp_server feature is enabled")
-        return
-    counter = DHCPv4_Counter()
-    counter_intf = counter.get_interface()
-
-    if interface:
-        print_dhcpv4_count(counter, interface)
-    else:
-        for intf in counter_intf:
-            print_dhcpv4_count(counter, intf)
-
-
-# 'counts' subcommand ("show dhcp4relay_counters counts")
-@dhcp4relay_counters.command('counts')
-@click.option('-i', '--interface', required=False)
-@click.option('--verbose', is_flag=True, help="Enable verbose output")
-def counts(interface, verbose):
-    """Show dhcp4relay message counts"""
-    ipv4_counters(interface)
-
 
 class DHCPv6_Counter(object):
     def __init__(self):
@@ -130,37 +48,30 @@ def __init__(self):
 
     def get_interface(self):
         """ Get all names of all interfaces in DHCPv6_COUNTER_TABLE """
-        interfaces = []
+        vlans = []
         for key in self.db.keys(self.db.STATE_DB):
             if DHCPv6_COUNTER_TABLE in key:
-                interfaces.append(key[21:])
-        return interfaces
+                vlans.append(key[21:])
+        return vlans
 
-    def get_dhcp6relay_msg_count(self, interface, dir):
+    def get_dhcp6relay_msg_count(self, interface, msg):
         """ Get count of a dhcp6relay message """
-        value = self.db.get(self.db.STATE_DB, self.table_name + str(interface), str(dir))
-        cnts = ast.literal_eval(str(value))
-        data = []
-        if cnts is not None:
-            for k, v in cnts.items():
-                data.append([k, v])
+        count = self.db.get(self.db.STATE_DB, self.table_name + str(interface), str(msg))
+        data = [str(msg), count]
         return data
 
     def clear_table(self, interface):
         """ Reset all message counts to 0 """
-        v6_cnts = {}
-        for msg in dhcpv6_messages:
-            v6_cnts[msg] = '0'
-        self.db.set(self.db.STATE_DB, self.table_name + str(interface), str("RX"), str(v6_cnts))
-        self.db.set(self.db.STATE_DB, self.table_name + str(interface), str("TX"), str(v6_cnts))
+        for msg in messages:
+            self.db.set(self.db.STATE_DB, self.table_name + str(interface), str(msg), '0')
 
 
-def print_dhcpv6_count(counter, intf):
+def print_count(counter, intf):
     """Print count of each message"""
-    rx_data = counter.get_dhcp6relay_msg_count(intf, "RX")
-    print(tabulate(rx_data, headers=["Message Type", intf+"(RX)"], tablefmt='simple', stralign='right') + "\n")
-    tx_data = counter.get_dhcp6relay_msg_count(intf, "TX")
-    print(tabulate(tx_data, headers=["Message Type", intf+"(TX)"], tablefmt='simple', stralign='right') + "\n")
+    data = []
+    for i in messages:
+        data.append(counter.get_dhcp6relay_msg_count(intf, i))
+    print(tabulate(data, headers=["Message Type", intf], tablefmt='simple', stralign='right') + "\n")
 
 
 #
@@ -179,10 +90,10 @@ def ipv6_counters(interface):
     counter_intf = counter.get_interface()
 
     if interface:
-        print_dhcpv6_count(counter, interface)
+        print_count(counter, interface)
     else:
         for intf in counter_intf:
-            print_dhcpv6_count(counter, intf)
+            print_count(counter, intf)
 
 
 # 'counts' subcommand ("show dhcp6relay_counters counts")
@@ -191,6 +102,7 @@ def ipv6_counters(interface):
 @click.option('--verbose', is_flag=True, help="Enable verbose output")
 def counts(interface, verbose):
     """Show dhcp6relay message counts"""
+
     ipv6_counters(interface)
 
 
@@ -296,10 +208,6 @@ def dhcp_relay_ipv4_destination():
 def dhcp_relay_ipv6_destination():
     get_dhcp_relay(DHCP_RELAY, DHCPV6_SERVERS, with_header=True)
 
-@dhcp_relay_ipv4.command("counters")
-@click.option('-i', '--interface', required=False)
-def dhcp_relay_ip4counters(interface):
-    ipv4_counters(interface)
 
 @dhcp_relay_ipv6.command("counters")
 @click.option('-i', '--interface', required=False)
@@ -308,7 +216,6 @@ def dhcp_relay_ip6counters(interface):
 
 
 def register(cli):
-    cli.add_command(dhcp4relay_counters)
     cli.add_command(dhcp6relay_counters)
     cli.add_command(dhcp_relay_helper)
     cli.add_command(dhcp_relay)

sonic-slave-bullseye/Dockerfile.j2

@@ -359,7 +359,6 @@ RUN apt-get update && apt-get install -y eatmydata && eatmydata apt-get install
 # For DHCP Monitor tool
         libexplain-dev \
         libevent-dev \
-        libjsoncpp-dev \
 # For libyang
         swig \
 # For build dtb