CSIT-25 DHCPv4 proxy tests

Change-Id: I5aa449d7289fe8d015a32b21c0a368e9693ba757
Signed-off-by: Patrik Hrnciar <phrnciar@cisco.com>

3 files changed, 124 insertions, 1 deletions

diff --git a/resources/libraries/python/Dhcp.py b/resources/libraries/python/Dhcp.py
index 8b78f457c0..ebdfeb3b80 100644
--- a/resources/libraries/python/Dhcp.py
+++ b/resources/libraries/python/Dhcp.py
@@ -46,3 +46,26 @@ class DhcpClient(object):
             raise RuntimeError('Unable to set DHCP client on node {} and'
                                ' interface {}.'
                                .format(vpp_node, interface))
+
+    @staticmethod
+    def dhcp_proxy_config(vpp_node, server_address, source_address):
+        """Set DHCP proxy.
+
+        :param vpp_node: VPP node to set DHCP proxy.
+        :param server_address: DHCP server IP address.
+        :param source_address: DHCP proxy address.
+        :type vpp_node: dict
+        :type server_address: str
+        :type source_address: str
+        :raises RuntimeError: If unable to set DHCP proxy.
+        """
+
+        output = VatExecutor.cmd_from_template(vpp_node,
+                                               "dhcp_proxy_config.vat",
+                                               server_address=server_address,
+                                               source_address=source_address)
+        output = output[0]
+
+        if output["retval"] != 0:
+            raise RuntimeError('Unable to set DHCP proxy on node {}'
+                               .format(vpp_node))
diff --git a/resources/libraries/python/TrafficScriptExecutor.py b/resources/libraries/python/TrafficScriptExecutor.py
index 8d899044fc..e5fb2589ef 100644
--- a/resources/libraries/python/TrafficScriptExecutor.py
+++ b/resources/libraries/python/TrafficScriptExecutor.py
@@ -50,6 +50,7 @@ class TrafficScriptExecutor(object):
         :type timeout: int
         :raises RuntimeError: ICMP echo Rx timeout.
         :raises RuntimeError: DHCP REQUEST Rx timeout.
+        :raises RuntimeError: DHCP DISCOVER timeout.
         :raises RuntimeError: TCP/UDP Rx timeout.
         :raises RuntimeError: ARP reply timeout.
         :raises RuntimeError: Traffic script execution failed.
@@ -74,6 +75,8 @@ class TrafficScriptExecutor(object):
                 raise RuntimeError("ICMP echo Rx timeout")
             elif "RuntimeError: DHCP REQUEST Rx timeout" in stderr:
                 raise RuntimeError("DHCP REQUEST Rx timeout")
+            elif "RuntimeError('DHCP DISCOVER timeout')" in stderr:
+                raise RuntimeError("DHCP DISCOVER timeout")
             elif "RuntimeError: TCP/UDP Rx timeout" in stderr:
                 raise RuntimeError("TCP/UDP Rx timeout")
             elif "Error occurred: ARP reply timeout" in stdout:
diff --git a/resources/libraries/robot/dhcp_client.robot b/resources/libraries/robot/dhcp_client.robot
index c3c4645d3d..c11e01c67a 100644
--- a/resources/libraries/robot/dhcp_client.robot
+++ b/resources/libraries/robot/dhcp_client.robot
@@ -137,5 +137,102 @@
 | | ... | --server_mac | ${server_mac} | --server_ip | ${server_ip}
 | | ... | --client_ip | ${client_ip} | --client_mask | ${client_mask}
 | | ... | --lease_time | ${lease_time}
-| | Run Traffic Script On Node  | dhcp/check_dhcp_request_ack.py
+| | Run Traffic Script On Node | dhcp/check_dhcp_request_ack.py
+| | ... | ${tg_node} | ${args}
+
+| Send DHCP Messages
+| | [Documentation] | Send and receive DHCP messages between client
+| | ...             | and server through DHCP proxy.
+| | ...
+| | ... | *Arguments:*
+| | ... | - tg_node - TG node. Type: dictionary
+| | ... | - tg_interface1 - TG interface. Type: string
+| | ... | - tg_interface2 - TG interface. Type: string
+| | ... | - server_ip - DHCP server IP address. Type: string
+| | ... | - server_mac - DHCP server MAC address. Type: string
+| | ... | - client_ip - Client IP address. Type: string
+| | ... | - client_mac - Client MAC address. Type: string
+| | ... | - proxy_ip - DHCP proxy IP address. Type: string
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned.
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Send DHCP Messages \| ${nodes['TG']} \
+| | ... | \| eth3 \| eth4 \| 192.168.0.100 \| 08:00:27:cc:4f:54 \
+| | ... | \| 172.16.0.2 \| 08:00:27:64:18:d2 \| 172.16.0.1 \|
+| | ...
+| | [Arguments] | ${tg_node} | ${tg_interface1} | ${tg_interface2}
+| | ... | ${server_ip} | ${server_mac} | ${client_ip} | ${client_mac}
+| | ... | ${proxy_ip} |
+| | ${tg_interface_name1}= | Get interface name | ${tg_node} | ${tg_interface1}
+| | ${tg_interface_name2}= | Get interface name | ${tg_node} | ${tg_interface2}
+| | ${args}= | Catenate | --tx_if | ${tg_interface_name1}
+| | ...                 | --rx_if | ${tg_interface_name2}
+| | ...                 | --server_ip | ${server_ip}
+| | ...                 | --server_mac | ${server_mac}
+| | ...                 | --client_ip | ${client_ip}
+| | ...                 | --client_mac | ${client_mac}
+| | ...                 | --proxy_ip | ${proxy_ip}
+| | Run Traffic Script On Node | dhcp/send_dhcp_messages.py
+| | ... | ${tg_node} | ${args}
+
+| Send DHCP DISCOVER
+| | [Documentation] | Send and receive DHCP DISCOVER.
+| | ...
+| | ... | *Arguments:*
+| | ... | - tg_node - TG node. Type: dictionary
+| | ... | - tg_interface1 - TG interface. Type: string
+| | ... | - tg_interface2 - TG interface. Type: string
+| | ... | - tx_src_ip - Source address of DHCP DISCOVER packet. Type: string
+| | ... | - tx_dst_ip - Destination address of DHCP DISCOVER packet. Type: string
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned.
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Send DHCP DISCOVER \| ${nodes['TG']} \
+| | ... | \| eth3 \| eth4 \| 0.0.0.0 \| 255.255.255.255 \|
+| | ...
+| | [Arguments] | ${tg_node} | ${tg_interface1} | ${tg_interface2}
+| | ... | ${tx_src_ip} | ${tx_dst_ip} |
+| | ${tg_interface_name1}= | Get interface name | ${tg_node} | ${tg_interface1}
+| | ${tg_interface_name2}= | Get interface name | ${tg_node} | ${tg_interface2}
+| | ${args}= | Catenate | --tx_if | ${tg_interface_name1}
+| | ...                 | --rx_if | ${tg_interface_name2}
+| | ...                 | --tx_src_ip | ${tx_src_ip}
+| | ...                 | --tx_dst_ip | ${tx_dst_ip}
+| | Run Traffic Script On Node | dhcp/send_dhcp_discover.py
+| | ... | ${tg_node} | ${args}
+
+| Send DHCP DISCOVER should fail
+| | [Documentation] | Send and receive DHCP DISCOVER should fail.
+| | ...
+| | ... | *Arguments:*
+| | ... | - tg_node - TG node. Type: dictionary
+| | ... | - tg_interface1 - TG interface. Type: string
+| | ... | - tg_interface2 - TG interface. Type: string
+| | ... | - tx_src_ip - Source address of DHCP DISCOVER packet. Type: string
+| | ... | - tx_dst_ip - Destination address of DHCP DISCOVER packet. Type: string
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned.
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Send DHCP DISCOVER should fail \| ${nodes['TG']} \
+| | ... | \| eth3 \| eth4 \| 0.0.0.0 \| 255.255.255.255 \|
+| | ...
+| | [Arguments] | ${tg_node} | ${tg_interface1} | ${tg_interface2}
+| | ... | ${tx_src_ip} | ${tx_dst_ip} |
+| | ${tg_interface_name1}= | Get interface name | ${tg_node} | ${tg_interface1}
+| | ${tg_interface_name2}= | Get interface name | ${tg_node} | ${tg_interface2}
+| | ${args}= | Catenate | --tx_if | ${tg_interface_name1}
+| | ...                 | --rx_if | ${tg_interface_name2}
+| | ...                 | --tx_src_ip | ${tx_src_ip}
+| | ...                 | --tx_dst_ip | ${tx_dst_ip}
+| | Run Keyword And Expect Error | DHCP DISCOVER timeout
+| | ... | Run Traffic Script On Node | dhcp/send_dhcp_discover.py
 | | ... | ${tg_node} | ${args}