# Copyright (c) 2016 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*** Settings ***
| Resource | resources/libraries/robot/default.robot
| Library | resources.libraries.python.IPsecUtil
| Library | resources.libraries.python.NodePath
| Library | resources.libraries.python.TrafficScriptExecutor
| Library | resources.libraries.python.IPv4Util.IPv4Util
| Library | resources.libraries.python.InterfaceUtil
| Library | resources.libraries.python.Routing
| Library | String
| Library | resources.libraries.python.IPv6Util
| Library | resources.libraries.python.IPv6Setup
| Library | resources.libraries.python.IPv4Setup.Dut | ${nodes['DUT1']}
| ...     | WITH NAME | dut1_v4
| Documentation | *IPsec keywords.*

*** Keywords ***
| Generate keys for IPSec
| | [Documentation] | Generate keys for IPsec.
| | ...
| | ... | *Arguments:*
| | ... | - crypto_alg - Encryption algorithm. Type: enum
| | ... | - integ_alg - Integrity algorithm. Type: enum
| | ...
| | ... | _NOTE:_ This KW sets following test case variable:
| | ... | - encr_key - Encryption key. Type: string
| | ... | - auth_key - Integrity key. Type: string
| | ...
| | ... | *Example:*
| | ... | \| ${encr_alg}= \| Crypto Alg AES CBC 128 \|
| | ... | \| ${auth_alg}= \| Integ Alg SHA1 96 \|
| | ... | \| Generate keys for IPSec \| ${encr_alg} \| ${auth_alg} \|
| | [Arguments] | ${crypto_alg} | ${integ_alg}
| | ${encr_key_len}= | Get Crypto Alg Key Len | ${crypto_alg}
| | ${encr_key}= | Generate Random String | ${encr_key_len}
| | ${auth_key_len}= | Get Integ Alg Key Len | ${integ_alg}
| | ${auth_key}= | Generate Random String | ${auth_key_len}
| | Set Test Variable | ${encr_key}
| | Set Test Variable | ${auth_key}

| Configure path for IPSec test
| | [Documentation] | Setup path for IPsec testing TG<-->DUT1.
| | ...
| | ... | _NOTE:_ This KW sets following test case variable:
| | ... | - tg_node - TG node. Type: dictionary
| | ... | - tg_if - TG interface connected to DUT. Type: string
| | ... | - tg_if_mac - TG interface MAC. Type: string
| | ... | - dut_node - DUT node. Type: dictionary
| | ... | - dut_if - DUT interface connected to TG. Type: string
| | ... | - dut_if_mac - DUT interface MAC. Type: string
| | ... | - dut_lo - DUT loopback interface. Type: string
| | ...
| | ... | *Example:*
| | ... | \| Configure path for IPSec test \|
| | Append Nodes | ${nodes['TG']} | ${nodes['DUT1']}
| | Compute Path
| | ${tg_if} | ${tg_node}= | Next Interface
| | ${dut_if} | ${dut_node}= | Next Interface
| | ${dut_if_mac}= | Get Interface Mac | ${dut_node} | ${dut_if}
| | ${tg_if_mac}= | Get Interface Mac | ${tg_node} | ${tg_if}
| | ${dut_lo}= | Vpp Create Loopback | ${dut_node}
| | Set Interface State | ${dut_node} | ${dut_if} | up
| | Set Interface State | ${dut_node} | ${dut_lo} | up
| | Vpp Node Interfaces Ready Wait | ${dut_node}
| | Set Test Variable | ${tg_node}
| | Set Test Variable | ${tg_if}
| | Set Test Variable | ${tg_if_mac}
| | Set Test Variable | ${dut_node}
| | Set Test Variable | ${dut_if}
| | Set Test Variable | ${dut_if_mac}
| | Set Test Variable | ${dut_lo}

| Configure topology for IPv4 IPsec testing
| | [Documentation] | Setup topology for IPv4 IPsec testing.
| | ...
| | ... | _NOTE:_ This KW sets following test case variable:
| | ... | - dut_tun_ip - DUT tunnel IP address. Type: string
| | ... | - dut_src_ip - DUT source IP address. Type: string
| | ... | - tg_tun_ip - TG tunnel IP address. Type: string
| | ... | - tg_src_ip - TG source IP address. Type: string
| | ...
| | ... | *Example:*
| | ... | \| Configure topology for IPv4 IPsec testing \|
| | Configure path for IPSec test
| | Set Interface Address | ${dut_node} | ${dut_if} | ${dut_if_ip4}
| | ...                   | ${ip4_plen}
| | Set Interface Address | ${dut_node} | ${dut_lo} | ${dut_lo_ip4}
| | ...                   | ${ip4_plen}
| | dut1_v4.Set Arp | ${dut_if} | ${tg_if_ip4} | ${tg_if_mac}
| | Vpp Route Add | ${dut_node} | ${tg_lo_ip4} | ${ip4_plen} | ${tg_if_ip4}
| | ...           | ${dut_if}
| | Set Test Variable | ${dut_tun_ip} | ${dut_if_ip4}
| | Set Test Variable | ${dut_src_ip} | ${dut_lo_ip4}
| | Set Test Variable | ${tg_tun_ip} | ${tg_if_ip4}
| | Set Test Variable | ${tg_src_ip} | ${tg_lo_ip4}

| Configure topology for IPv6 IPsec testing
| | [Documentation] | Setup topology fo IPv6 IPsec testing.
| | ...
| | ... | _NOTE:_ This KW sets following test case variable:
| | ... | - dut_tun_ip - DUT tunnel IP address. Type: string
| | ... | - dut_src_ip - DUT source IP address. Type: string
| | ... | - tg_tun_ip - TG tunnel IP address. Type: string
| | ... | - tg_src_ip - TG source IP address. Type: string
| | ...
| | ... | *Example:*
| | ... | \| Configure topology for IPv6 IPsec testing \|
| | Configure path for IPSec test
| | VPP Set If IPv6 Addr | ${dut_node} | ${dut_if} | ${dut_if_ip6} | ${ip6_plen}
| | VPP Set If IPv6 Addr | ${dut_node} | ${dut_lo} | ${dut_lo_ip6} | ${ip6_plen}
| | Add IP Neighbor | ${dut_node} | ${dut_if} | ${tg_if_ip6} | ${tg_if_mac}
| | Vpp All RA Suppress Link Layer | ${nodes}
| | Vpp Route Add | ${dut_node} | ${tg_lo_ip6} | ${ip6_plen_rt} | ${tg_if_ip6}
| | ...           | ${dut_if}
| | Set Test Variable | ${dut_tun_ip} | ${dut_if_ip6}
| | Set Test Variable | ${dut_src_ip} | ${dut_lo_ip6}
| | Set Test Variable | ${tg_tun_ip} | ${tg_if_ip6}
| | Set Test Variable | ${tg_src_ip} | ${tg_lo_ip6}

| Configure manual keyed connection for IPSec
| | [Documentation] | Setup IPsec manual keyed connection on VPP node.
| | ...
| | ... | *Arguments:*
| | ... | - node - VPP node to setup IPsec on. Type: dictionary
| | ... | - interface - Interface to enable IPsec on. Type: string
| | ... | - crypto_alg - Encrytion algorithm. Type: enum
| | ... | - crypto_key - Encryption key. Type: string
| | ... | - integ_alg - Integrity algorithm. Type: enum
| | ... | - integ_key - Integrity key. Type: string
| | ... | - l_spi - Local SPI. Type: integer
| | ... | - r_spi - Remote SPI. Type: integer
| | ... | - l_ip - Local IP address. Type: string
| | ... | - r_ip - Remote IP address. Type: string
| | ... | - l_tunnel - Local tunnel IP address (optional). Type: string
| | ... | - r_tunnel - Remote tunnel IP address (optional). Type: string
| | ...
| | ... | _NOTE:_ This KW sets following test case variables:
| | ... | - l_sa_id
| | ... | - r_sa_id
| | ...
| | ... | *Example:*
| | ... | \| ${encr_alg}= \| Crypto Alg AES CBC 128 \|
| | ... | \| ${auth_alg}= \| Integ Alg SHA1 96 \|
| | ... | \| Configure manual keyed connection for IPSec \| ${nodes['DUT1']} \
| | ... | \| GigabitEthernet0/8/0 \| ${encr_alg} \| sixteenbytes_key \
| | ... | \| ${auth_alg} \| twentybytessecretkey \| ${1000} \| ${1001} \
| | ... | \| 192.168.4.4 \| 192.168.3.3 \| 192.168.100.3 \| 192.168.100.2 \|
| | [Arguments] | ${node} | ${interface} | ${crypto_alg} | ${crypto_key}
| | ...         | ${integ_alg} | ${integ_key} | ${l_spi} | ${r_spi} | ${l_ip}
| | ...         | ${r_ip} | ${l_tunnel}=${None} | ${r_tunnel}=${None}
| | Set Test Variable | ${l_sa_id} | ${10}
| | Set Test Variable | ${r_sa_id} | ${20}
| | ${spd_id}= | Set Variable | ${1}
| | ${p_hi}= | Set Variable | ${100}
| | ${p_lo}= | Set Variable | ${10}
| | VPP IPsec Add SAD Entry | ${node} | ${l_sa_id} | ${l_spi} | ${crypto_alg}
| | ...                     | ${crypto_key} | ${integ_alg} | ${integ_key}
| | ...                     | ${l_tunnel} | ${r_tunnel}
| | VPP IPsec Add SAD Entry | ${node} | ${r_sa_id} | ${r_spi} | ${crypto_alg}
| | ...                     | ${crypto_key} | ${integ_alg} | ${integ_key}
| | ...                     | ${r_tunnel} | ${l_tunnel}
| | VPP IPsec Add SPD | ${node} | ${spd_id}
| | VPP IPsec SPD Add If | ${node} | ${spd_id} | ${interface}
| | ${action}= | Policy Action Bypass
| | VPP IPsec SPD Add Entry | ${node} | ${spd_id} | ${p_hi} | ${action}
| | ...                     | inbound=${TRUE} | proto=${ESP_PROTO}
| | VPP IPsec SPD Add Entry | ${node} | ${spd_id} | ${p_hi} | ${action}
| | ...                     | inbound=${FALSE} | proto=${ESP_PROTO}
| | ${action}= | Policy Action Protect
| | VPP IPsec SPD Add Entry | ${node} | ${spd_id} | ${p_lo} | ${action}
| | ...                     | sa_id=${r_sa_id} | laddr_range=${l_ip}
| | ...                     | raddr_range=${r_ip} | inbound=${TRUE}
| | VPP IPsec SPD Add Entry | ${node} | ${spd_id} | ${p_lo} | ${action}
| | ...                     | sa_id=${l_sa_id} | laddr_range=${l_ip}
| | ...                     | raddr_range=${r_ip} | inbound=${FALSE}

| Update IPSec SA keys
| | [Documentation] | Update IPsec SA keys on VPP node.
| | ...
| | ... | *Arguments:*
| | ... | - node - VPP node to update SA keys. Type: dictionary
| | ... | - l_sa_id - Local SA ID. Type: string
| | ... | - r_sa_id - Remote SA ID. Type: string
| | ... | - crypto_key - Encryption key. Type: string
| | ... | - integ_key - Integrity key. Type: string
| | ...
| | ... | *Example:*
| | ... | \| Update IPSec SA keys \| ${nodes['DUT1']} \
| | ... | \| 10 \| 20 \| sixteenbytes_key \| twentybytessecretkey \|
| | [Arguments] | ${node} | ${l_sa_id} | ${r_sa_id} | ${crypto_key}
| | ...         | ${integ_key}
| | VPP IPsec SA Set Key | ${dut_node} | ${l_sa_id} | ${crypto_key}
| | ...                  | ${integ_key}
| | VPP IPsec SA Set Key | ${dut_node} | ${r_sa_id} | ${crypto_key}
| | ...                  | ${integ_key}

| Send IPsec Packet and verify ESP encapsulation in received packet
| | [Documentation] | Send IPsec packet from TG to DUT. Receive IPsec packet\
| | ...             | from DUT on TG and verify ESP encapsulation.
| | ...
| | ... | *Arguments:*
| | ... | - node - TG node. Type: dictionary
| | ... | - interface - TG Interface. Type: string
| | ... | - dst_mac - Destination MAC. Type: string
| | ... | - crypto_alg - Encrytion algorithm. Type: enum
| | ... | - crypto_key - Encryption key. Type: string
| | ... | - integ_alg - Integrity algorithm. Type: enum
| | ... | - integ_key - Integrity key. Type: string
| | ... | - l_spi - Local SPI. Type: integer
| | ... | - r_spi - Remote SPI. Type: integer
| | ... | - l_ip - Local IP address. Type: string
| | ... | - r_ip - Remote IP address. Type: string
| | ... | - l_tunnel - Local tunnel IP address (optional). Type: string
| | ... | - r_tunnel - Remote tunnel IP address (optional). Type: string
| | ...
| | ... | *Example:*
| | ... | \| ${encr_alg}= \| Crypto Alg AES CBC 128 \|
| | ... | \| ${auth_alg}= \| Integ Alg SHA1 96 \|
| | ... | \| Send IPsec Packet and verify ESP encapsulation in received packet \| ${nodes['TG']} \| eth1 \
| | ... | \| 52:54:00:d4:d8:22 \| ${encr_alg} \| sixteenbytes_key \
| | ... | \| ${auth_alg} \| twentybytessecretkey \| ${1001} \| ${1000} \
| | ... | \| 192.168.3.3 \| 192.168.4.4 \| 192.168.100.2 \| 192.168.100.3 \|
| | [Arguments] | ${node} | ${interface} | ${dst_mac} | ${crypto_alg}
| | ...         | ${crypto_key} | ${integ_alg} | ${integ_key} | ${l_spi}
| | ...         | ${r_spi} | ${l_ip} | ${r_ip} | ${l_tunnel}=${None}
| | ...         | ${r_tunnel}=${None}
| | ${src_mac}= | Get Interface Mac | ${node} | ${interface}
| | ${if_name}= | Get Interface Name | ${node} | ${interface}
| | ${args}= | Traffic Script Gen Arg | ${if_name} | ${if_name} | ${src_mac}
| | ...      | ${dst_mac} | ${l_ip} | ${r_ip}
| | ${crypto_alg_str}= | Get Crypto Alg Scapy Name | ${crypto_alg}
| | ${integ_alg_str}= | Get Integ Alg Scapy Name | ${integ_alg}
| | ${args}= | Catenate | ${args} | --crypto_alg ${crypto_alg_str}
| | ...      | --crypto_key ${crypto_key} | --integ_alg ${integ_alg_str}
| | ...      | --integ_key ${integ_key} | --l_spi ${l_spi} | --r_spi ${r_spi}
| | ${args}= | Set Variable If | "${l_tunnel}" == "${None}" | ${args}
| | ... | ${args} --src_tun ${l_tunnel}
| | ${args}= | Set Variable If | "${r_tunnel}" == "${None}" | ${args}
| | ... | ${args} --dst_tun ${r_tunnel}
| | Run Traffic Script On Node | ipsec.py | ${node} | ${args}