1*** Settings ***
2Documentation  Network interface configuration and verification
3               ...  tests.
4
5Resource       ../../lib/bmc_redfish_resource.robot
6Resource       ../../lib/bmc_network_utils.robot
7Resource       ../../lib/openbmc_ffdc.robot
8Library        ../../lib/bmc_network_utils.py
9Library        Collections
10
11Test Setup     Test Setup Execution
12Test Teardown  Test Teardown Execution
13
14Force Tags     Network_Conf_Test
15
16*** Variables ***
17${test_hostname}           openbmc
18${test_ipv4_addr}          10.7.7.7
19${test_ipv4_invalid_addr}  0.0.1.a
20${test_subnet_mask}        255.255.0.0
21${test_gateway}            10.7.7.1
22${broadcast_ip}            10.7.7.255
23${loopback_ip}             127.0.0.2
24${multicast_ip}            224.6.6.6
25${out_of_range_ip}         10.7.7.256
26
27# Valid netmask is 4 bytes long and has continuos block of 1s.
28# Maximum valid value in each octet is 255 and least value is 0.
29# 253 is not valid, as binary value is 11111101.
30${invalid_netmask}         255.255.253.0
31${alpha_netmask}           ff.ff.ff.ff
32# Maximum value of octet in netmask is 255.
33${out_of_range_netmask}    255.256.255.0
34${more_byte_netmask}       255.255.255.0.0
35${less_byte_netmask}       255.255.255
36${threshold_netmask}       255.255.255.255
37${lowest_netmask}          128.0.0.0
38
39# There will be 4 octets in IP address (e.g. xx.xx.xx.xx)
40# but trying to configure xx.xx.xx
41${less_octet_ip}           10.3.36
42
43# For the address 10.6.6.6, the 10.6.6.0 portion describes the
44# network ID and the 6 describe the host.
45
46${network_id}              10.7.7.0
47${hex_ip}                  0xa.0xb.0xc.0xd
48${negative_ip}             10.-7.-7.7
49${hex_ip}                  0xa.0xb.0xc.0xd
50@{static_name_servers}     10.5.5.5
51@{null_value}              null
52@{empty_dictionary}        {}
53@{string_value}            aa.bb.cc.dd
54
55*** Test Cases ***
56
57Get IP Address And Verify
58    [Documentation]  Get IP Address And Verify.
59    [Tags]  Get_IP_Address_And_Verify
60
61    : FOR  ${network_configuration}  IN  @{network_configurations}
62    \  Verify IP On BMC  ${network_configuration['Address']}
63
64Get Netmask And Verify
65    [Documentation]  Get Netmask And Verify.
66    [Tags]  Get_Netmask_And_Verify
67
68    : FOR  ${network_configuration}  IN  @{network_configurations}
69    \  Verify Netmask On BMC  ${network_configuration['SubnetMask']}
70
71Get Gateway And Verify
72    [Documentation]  Get gateway and verify it's existence on the BMC.
73    [Tags]  Get_Gateway_And_Verify
74
75    : FOR  ${network_configuration}  IN  @{network_configurations}
76    \  Verify Gateway On BMC  ${network_configuration['Gateway']}
77
78Get MAC Address And Verify
79    [Documentation]  Get MAC address and verify it's existence on the BMC.
80    [Tags]  Get_MAC_Address_And_Verify
81
82    ${resp}=  Redfish.Get  ${REDFISH_NW_ETH0_URI}
83    ${macaddr}=  Get From Dictionary  ${resp.dict}  MACAddress
84    Validate MAC On BMC  ${macaddr}
85
86Verify All Configured IP And Netmask
87    [Documentation]  Verify all configured IP and netmask on BMC.
88    [Tags]  Verify_All_Configured_IP_And_Netmask
89
90    : FOR  ${network_configuration}  IN  @{network_configurations}
91    \  Verify IP And Netmask On BMC  ${network_configuration['Address']}
92    ...  ${network_configuration['SubnetMask']}
93
94Get Hostname And Verify
95    [Documentation]  Get hostname via Redfish and verify.
96    [Tags]  Get_Hostname_And_Verify
97
98    ${hostname}=  Redfish_Utils.Get Attribute  ${REDFISH_NW_PROTOCOL_URI}  HostName
99
100    Validate Hostname On BMC  ${hostname}
101
102Configure Hostname And Verify
103    [Documentation]  Configure hostname via Redfish and verify.
104    [Tags]  Configure_Hostname_And_Verify
105
106    ${hostname}=  Redfish_Utils.Get Attribute  ${REDFISH_NW_PROTOCOL_URI}  HostName
107
108    Configure Hostname  ${test_hostname}
109    Validate Hostname On BMC  ${test_hostname}
110
111    # Revert back to initial hostname.
112    Configure Hostname  ${hostname}
113    Validate Hostname On BMC  ${hostname}
114
115Add Valid IPv4 Address And Verify
116    [Documentation]  Add IPv4 Address via Redfish and verify.
117    [Tags]  Add_Valid_IPv4_Addres_And_Verify
118
119     Add IP Address  ${test_ipv4_addr}  ${test_subnet_mask}  ${test_gateway}
120     Delete IP Address  ${test_ipv4_addr}
121
122Add Invalid IPv4 Address And Verify
123    [Documentation]  Add Invalid IPv4 Address via Redfish and verify.
124    [Tags]  Add_Invalid_IPv4_Addres_And_Verify
125
126    Add IP Address  ${test_ipv4_invalid_addr}  ${test_subnet_mask}
127    ...  ${test_gateway}  valid_status_codes=${HTTP_BAD_REQUEST}
128
129Configure Out Of Range IP
130    [Documentation]  Configure out-of-range IP address.
131    [Tags]  Configure_Out_Of_Range_IP
132    [Template]  Add IP Address
133
134    # ip                subnet_mask          gateway          valid_status_codes
135    ${out_of_range_ip}  ${test_subnet_mask}  ${test_gateway}  ${HTTP_BAD_REQUEST}
136
137Configure Broadcast IP
138    [Documentation]  Configure broadcast IP address.
139    [Tags]  Configure_Broadcast_IP
140    [Template]  Add IP Address
141    [Teardown]  Clear IP Settings On Fail  ${broadcast_ip}
142
143    # ip             subnet_mask          gateway          valid_status_codes
144    ${broadcast_ip}  ${test_subnet_mask}  ${test_gateway}  ${HTTP_BAD_REQUEST}
145
146Configure Multicast IP
147    [Documentation]  Configure multicast IP address.
148    [Tags]  Configure_Multicast_IP
149    [Template]  Add IP Address
150    [Teardown]  Clear IP Settings On Fail  ${multicast_ip}
151
152    # ip             subnet_mask          gateway          valid_status_codes
153    ${multicast_ip}  ${test_subnet_mask}  ${test_gateway}  ${HTTP_BAD_REQUEST}
154
155Configure Loopback IP
156    [Documentation]  Configure loopback IP address.
157    [Tags]  Configure_Loopback_IP
158    [Template]  Add IP Address
159    [Teardown]  Clear IP Settings On Fail  ${loopback_ip}
160
161    # ip            subnet_mask          gateway          valid_status_codes
162    ${loopback_ip}  ${test_subnet_mask}  ${test_gateway}  ${HTTP_BAD_REQUEST}
163
164Add Valid IPv4 Address And Check Persistency
165    [Documentation]  Add IPv4 address and check peristency.
166    [Tags]  Add_Valid_IPv4_Addres_And_Check_Persistency
167
168    Add IP Address  ${test_ipv4_addr}  ${test_subnet_mask}  ${test_gateway}
169
170    # Reboot BMC and verify persistency.
171    OBMC Reboot (off)
172    Redfish.Login
173    Verify IP On BMC  ${test_ipv4_addr}
174    Delete IP Address  ${test_ipv4_addr}
175
176Add Fourth Octet Threshold IP And Verify
177    [Documentation]  Add fourth octet threshold IP and verify.
178    [Tags]  Add_Fourth_Octet_Threshold_IP_And_Verify
179
180     Add IP Address  10.7.7.254  ${test_subnet_mask}  ${test_gateway}
181     Delete IP Address  10.7.7.254
182
183Add Fourth Octet Lowest IP And Verify
184    [Documentation]  Add fourth octet lowest IP and verify.
185    [Tags]  Add_Fourth_Octet_Lowest_IP_And_Verify
186
187     Add IP Address  10.7.7.1  ${test_subnet_mask}  ${test_gateway}
188     Delete IP Address  10.7.7.1
189
190Add Third Octet Threshold IP And Verify
191    [Documentation]  Add third octet threshold IP and verify.
192    [Tags]  Add_Third_Octet_Threshold_IP_And_Verify
193
194     Add IP Address  10.7.255.7  ${test_subnet_mask}  ${test_gateway}
195     Delete IP Address  10.7.255.7
196
197Add Third Octet Lowest IP And Verify
198    [Documentation]  Add third octet lowest IP and verify.
199    [Tags]  Add_Third_Octet_Lowest_IP_And_Verify
200
201     Add IP Address  10.7.0.7  ${test_subnet_mask}  ${test_gateway}
202     Delete IP Address  10.7.0.7
203
204Add Second Octet Threshold IP And Verify
205    [Documentation]  Add second octet threshold IP and verify.
206    [Tags]  Add_Second_Octet_Threshold_IP_And_Verify
207
208     Add IP Address  10.255.7.7  ${test_subnet_mask}  ${test_gateway}
209     Delete IP Address  10.255.7.7
210
211Add Second Octet Lowest IP And Verify
212    [Documentation]  Add second octet lowest IP and verify.
213    [Tags]  Add_Second_Octet_Lowest_IP_And_Verify
214
215     Add IP Address  10.0.7.7  ${test_subnet_mask}  ${test_gateway}
216     Delete IP Address  10.0.7.7
217
218Add First Octet Threshold IP And Verify
219    [Documentation]  Add first octet threshold IP and verify.
220    [Tags]  Add_First_Octet_Threshold_IP_And_Verify
221
222     Add IP Address  223.7.7.7  ${test_subnet_mask}  ${test_gateway}
223     Delete IP Address  223.7.7.7
224
225Add First Octet Lowest IP And Verify
226    [Documentation]  Add first octet lowest IP and verify.
227    [Tags]  Add_First_Octet_Lowest_IP_And_Verify
228
229     Add IP Address  1.7.7.7  ${test_subnet_mask}  ${test_gateway}
230     Delete IP Address  1.7.7.7
231
232Configure Invalid Netmask
233    [Documentation]  Verify error while setting invalid netmask.
234    [Tags]  Configure_Invalid_Netmask
235    [Template]  Add IP Address
236
237    # ip               subnet_mask         gateway          valid_status_codes
238    ${test_ipv4_addr}  ${invalid_netmask}  ${test_gateway}  ${HTTP_BAD_REQUEST}
239
240Configure Out Of Range Netmask
241    [Documentation]  Verify error while setting out of range netmask.
242    [Tags]  Configure_Out_Of_Range_Netmask
243    [Template]  Add IP Address
244
245    # ip               subnet_mask              gateway          valid_status_codes
246    ${test_ipv4_addr}  ${out_of_range_netmask}  ${test_gateway}  ${HTTP_BAD_REQUEST}
247
248Configure Alpha Netmask
249    [Documentation]  Verify error while setting alpha netmask.
250    [Tags]  Configure_Alpha_Netmask
251    [Template]  Add IP Address
252
253    # ip               subnet_mask       gateway          valid_status_codes
254    ${test_ipv4_addr}  ${alpha_netmask}  ${test_gateway}  ${HTTP_BAD_REQUEST}
255
256Configure More Byte Netmask
257    [Documentation]  Verify error while setting more byte netmask.
258    [Tags]  Configure_More_Byte_Netmask
259    [Template]  Add IP Address
260
261    # ip               subnet_mask           gateway          valid_status_codes
262    ${test_ipv4_addr}  ${more_byte_netmask}  ${test_gateway}  ${HTTP_BAD_REQUEST}
263
264Configure Less Byte Netmask
265    [Documentation]  Verify error while setting less byte netmask.
266    [Tags]  Configure_Less_Byte_Netmask
267    [Template]  Add IP Address
268
269    # ip               subnet_mask           gateway          valid_status_codes
270    ${test_ipv4_addr}  ${less_byte_netmask}  ${test_gateway}  ${HTTP_BAD_REQUEST}
271
272Configure Threshold Netmask And Verify
273    [Documentation]  Configure threshold netmask and verify.
274    [Tags]  Configure_Threshold_Netmask_And_verify
275
276     Add IP Address  ${test_ipv4_addr}  ${threshold_netmask}  ${test_gateway}
277     Delete IP Address  ${test_ipv4_addr}
278
279Configure Lowest Netmask And Verify
280    [Documentation]  Configure lowest netmask and verify.
281    [Tags]  Configure_Lowest_Netmask_And_verify
282
283     Add IP Address  ${test_ipv4_addr}  ${lowest_netmask}  ${test_gateway}
284     Delete IP Address  ${test_ipv4_addr}
285
286Configure Network ID
287    [Documentation]  Verify error while configuring network ID.
288    [Tags]  Configure_Network_ID
289    [Template]  Add IP Address
290    [Teardown]  Clear IP Settings On Fail  ${network_id}
291
292    # ip           subnet_mask          gateway          valid_status_codes
293    ${network_id}  ${test_subnet_mask}  ${test_gateway}  ${HTTP_BAD_REQUEST}
294
295Configure Less Octet IP
296    [Documentation]  Verify error while Configuring less octet IP address.
297    [Tags]  Configure_Less_Octet_IP
298    [Template]  Add IP Address
299
300    # ip              subnet_mask          gateway          valid_status_codes
301    ${less_octet_ip}  ${test_subnet_mask}  ${test_gateway}  ${HTTP_BAD_REQUEST}
302
303Configure Empty IP
304    [Documentation]  Verify error while Configuring empty IP address.
305    [Tags]  Configure_Empty_IP
306    [Template]  Add IP Address
307
308    # ip      subnet_mask          gateway          valid_status_codes
309    ${EMPTY}  ${test_subnet_mask}  ${test_gateway}  ${HTTP_BAD_REQUEST}
310
311Configure Special Char IP
312    [Documentation]  Configure invalid IP address containing special chars.
313    [Tags]  Configure_Special_Char_IP
314    [Template]  Add IP Address
315
316    # ip          subnet_mask          gateway          valid_status_codes
317    @@@.%%.44.11  ${test_subnet_mask}  ${test_gateway}  ${HTTP_BAD_REQUEST}
318
319Configure Hexadecimal IP
320    [Documentation]  Configure invalid IP address containing hex value.
321    [Tags]  Configure_Hexadecimal_IP
322    [Template]  Add IP Address
323
324    # ip       subnet_mask          gateway          valid_status_codes
325    ${hex_ip}  ${test_subnet_mask}  ${test_gateway}  ${HTTP_BAD_REQUEST}
326
327Configure Negative Octet IP
328    [Documentation]  Configure invalid IP address containing negative octet.
329    [Tags]  Configure_Negative_Octet_IP
330    [Template]  Add IP Address
331
332    # ip            subnet_mask          gateway          valid_status_codes
333    ${negative_ip}  ${test_subnet_mask}  ${test_gateway}  ${HTTP_BAD_REQUEST}
334
335Configure Incomplete IP For Gateway
336    [Documentation]  Configure incomplete IP for gateway and expect an error.
337    [Tags]  Configure_Incomplete_IP_For_Gateway
338    [Template]  Add IP Address
339
340    # ip               subnet_mask          gateway           valid_status_codes
341    ${test_ipv4_addr}  ${test_subnet_mask}  ${less_octet_ip}  ${HTTP_BAD_REQUEST}
342
343Configure Special Char IP For Gateway
344    [Documentation]  Configure special char IP for gateway and expect an error.
345    [Tags]  Configure_Special_Char_IP_For_Gateway
346    [Template]  Add IP Address
347
348    # ip               subnet_mask          gateway       valid_status_codes
349    ${test_ipv4_addr}  ${test_subnet_mask}  @@@.%%.44.11  ${HTTP_BAD_REQUEST}
350
351Configure Hexadecimal IP For Gateway
352    [Documentation]  Configure hexadecimal IP for gateway and expect an error.
353    [Tags]  Configure_Hexadecimal_IP_For_Gateway
354    [Template]  Add IP Address
355
356    # ip               subnet_mask          gateway    valid_status_codes
357    ${test_ipv4_addr}  ${test_subnet_mask}  ${hex_ip}  ${HTTP_BAD_REQUEST}
358
359Get DNS Server And Verify
360    [Documentation]  Get DNS server via Redfish and verify.
361    [Tags]  Get_DNS_Server_And_Verify
362
363    Verify CLI and Redfish Nameservers
364
365Configure DNS Server And Verify
366    [Documentation]  Configure DNS server and verify.
367    [Tags]  Configure_DNS_Server_And_Verify
368    [Setup]  DNS Test Setup Execution
369    [Teardown]  Run Keywords
370    ...  Configure Static Name Servers  AND  Test Teardown Execution
371
372    Configure Static Name Servers  ${static_name_servers}
373    Verify CLI and Redfish Nameservers
374
375Delete DNS Server And Verify
376    [Documentation]  Delete DNS server and verify.
377    [Tags]  Delete_DNS_Server_And_Verify
378    [Setup]  DNS Test Setup Execution
379    [Teardown]  Run Keywords
380    ...  Configure Static Name Servers  AND  Test Teardown Execution
381
382    Delete Static Name Servers
383    Verify CLI and Redfish Nameservers
384
385Configure DNS Server And Check Persistency
386    [Documentation]  Configure DNS server and check persistency on reboot.
387    [Tags]  Configure_DNS_Server_And_Check_Persistency
388    [Setup]  DNS Test Setup Execution
389    [Teardown]  Run Keywords
390    ...  Configure Static Name Servers  AND  Test Teardown Execution
391
392    Configure Static Name Servers  ${static_name_servers}
393    # Reboot BMC and verify persistency.
394    OBMC Reboot (off)
395    Verify CLI and Redfish Nameservers
396
397Configure Loopback IP For Gateway
398    [Documentation]  Configure loopback IP for gateway and expect an error.
399    [Tags]  Configure_Loopback_IP_For_Gateway
400    [Template]  Add IP Address
401    [Teardown]  Clear IP Settings On Fail  ${test_ipv4_addr}
402
403    # ip               subnet_mask          gateway         valid_status_codes
404    ${test_ipv4_addr}  ${test_subnet_mask}  ${loopback_ip}  ${HTTP_BAD_REQUEST}
405
406Configure Network ID For Gateway
407    [Documentation]  Configure network ID for gateway and expect an error.
408    [Tags]  Configure_Network_ID_For_Gateway
409    [Template]  Add IP Address
410    [Teardown]  Clear IP Settings On Fail  ${test_ipv4_addr}
411
412    # ip               subnet_mask          gateway        valid_status_codes
413    ${test_ipv4_addr}  ${test_subnet_mask}  ${network_id}  ${HTTP_BAD_REQUEST}
414
415Configure Multicast IP For Gateway
416    [Documentation]  Configure multicast IP for gateway and expect an error.
417    [Tags]  Configure_Multicast_IP_For_Gateway
418    [Template]  Add IP Address
419    [Teardown]  Clear IP Settings On Fail  ${test_ipv4_addr}
420
421    # ip               subnet_mask          gateway           valid_status_codes
422    ${test_ipv4_addr}  ${test_subnet_mask}  ${multicaste_ip}  ${HTTP_BAD_REQUEST}
423
424Configure Broadcast IP For Gateway
425    [Documentation]  Configure broadcast IP for gateway and expect an error.
426    [Tags]  Configure_Broadcast_IP_For_Gateway
427    [Template]  Add IP Address
428    [Teardown]  Clear IP Settings On Fail  ${test_ipv4_addr}
429
430    # ip               subnet_mask          gateway          valid_status_codes
431    ${test_ipv4_addr}  ${test_subnet_mask}  ${broadcast_ip}  ${HTTP_BAD_REQUEST}
432
433Configure Null Value For DNS Server
434    [Documentation]  Configure null value for DNS server and expect an error.
435    [Tags]  Configure_Null_Value_For_DNS_Server
436    [Setup]  DNS Test Setup Execution
437    [Teardown]  Run Keywords
438    ...  Configure Static Name Servers  AND  Test Teardown Execution
439
440    Configure Static Name Servers  ${null_value}  ${HTTP_BAD_REQUEST}
441
442Configure Empty Value For DNS Server
443    [Documentation]  Configure empty value for DNS server and expect an error.
444    [Tags]  Configure_Empty_Value_For_DNS_Server
445    [Setup]  DNS Test Setup Execution
446    [Teardown]  Run Keywords
447    ...  Configure Static Name Servers  AND  Test Teardown Execution
448
449    Configure Static Name Servers  ${empty_dictionary}  ${HTTP_BAD_REQUEST}
450
451Configure String Value For DNS Server
452    [Documentation]  Configure string value for DNS server and expect an error.
453    [Tags]  Configure_String_Value_For_DNS_Server
454    [Setup]  DNS Test Setup Execution
455    [Teardown]  Run Keywords
456    ...  Configure Static Name Servers  AND  Test Teardown Execution
457
458    Configure Static Name Servers  ${string_value}  ${HTTP_BAD_REQUEST}
459
460*** Keywords ***
461
462Test Setup Execution
463    [Documentation]  Test setup execution.
464
465    Redfish.Login
466
467    @{network_configurations}=  Get Network Configuration
468    Set Test Variable  @{network_configurations}
469
470    # Get BMC IP address and prefix length.
471    ${ip_data}=  Get BMC IP Info
472    Set Test Variable  ${ip_data}
473
474
475Verify Netmask On BMC
476    [Documentation]  Verify netmask on BMC.
477    [Arguments]  ${netmask}
478
479    # Description of the argument(s):
480    # netmask  netmask value to be verified.
481
482    ${prefix_length}=  Netmask Prefix Length  ${netmask}
483
484    Should Contain Match  ${ip_data}  */${prefix_length}
485    ...  msg=Prefix length does not exist.
486
487Verify IP And Netmask On BMC
488    [Documentation]  Verify IP and netmask on BMC.
489    [Arguments]  ${ip}  ${netmask}
490
491    # Description of the argument(s):
492    # ip       IP address to be verified.
493    # netmask  netmask value to be verified.
494
495    ${prefix_length}=  Netmask Prefix Length  ${netmask}
496    @{ip_data}=  Get BMC IP Info
497
498    ${ip_with_netmask}=  Catenate  ${ip}/${prefix_length}
499    Should Contain  ${ip_data}  ${ip_with_netmask}
500    ...  msg=IP and netmask pair does not exist.
501
502Validate Hostname On BMC
503    [Documentation]  Verify that the hostname read via Redfish is the same as the
504    ...  hostname configured on system.
505    [Arguments]  ${hostname}
506
507    # Description of argument(s):
508    # hostname  A hostname value which is to be compared to the hostname
509    #           configured on system.
510
511    ${sys_hostname}=  Get BMC Hostname
512    Should Be Equal  ${sys_hostname}  ${hostname}
513    ...  ignore_case=True  msg=Hostname does not exist.
514
515Test Teardown Execution
516    [Documentation]  Test teardown execution.
517
518    FFDC On Test Case Fail
519    Redfish.Logout
520
521Clear IP Settings On Fail
522    [Documentation]  Clear IP settings on fail.
523    [Arguments]  ${ip}
524
525    # Description of argument(s):
526    # ip  IP address to be deleted.
527
528    Run Keyword If  '${TEST STATUS}' == 'FAIL'
529    ...  Delete IP Address  ${ip}
530
531    Test Teardown Execution
532
533Verify CLI and Redfish Nameservers
534    [Documentation]  Verify that nameservers obtained via Redfish do not
535    ...  match those found in /etc/resolv.conf.
536
537    ${redfish_nameservers}=  Redfish.Get Attribute  ${REDFISH_NW_ETH0_URI}  StaticNameServers
538    ${resolve_conf_nameservers}=  CLI Get Nameservers
539    Rqprint Vars  redfish_nameservers  resolve_conf_nameservers
540
541    # Check that the 2 lists are equivalent.
542    ${match}=  Evaluate  set($redfish_nameservers) == set($resolve_conf_nameservers)
543    Should Be True  ${match}
544    ...  The nameservers obtained via Redfish do not match those found in /etc/resolv.conf.
545
546
547Configure Static Name Servers
548    [Documentation]  Configure DNS server on BMC.
549    [Arguments]  ${static_name_servers}=${original_nameservers}
550     ...  ${valid_status_codes}=${HTTP_OK}
551
552    # Description of the argument(s):
553    # static_name_servers  A list of static name server IPs to be
554    #                      configured on the BMC.
555
556    # Currently BMC is sending 500 response code instead of 400 for invalid scenarios.
557    Redfish.Patch  ${REDFISH_NW_ETH0_URI}  body={'StaticNameServers': ${static_name_servers}}
558    ...  valid_status_codes=[${valid_status_codes}, ${HTTP_INTERNAL_SERVER_ERROR}]
559
560    # Patch operation takes 1 to 3 seconds to set new value.
561    Sleep  3s
562
563    # Check if newly added DNS server is configured on BMC.
564    ${cli_nameservers}=  CLI Get Nameservers
565    ${cmd_status}=  Run Keyword And Return Status
566    ...  List Should Contain Sub List  ${cli_nameservers}  ${static_name_servers}
567
568    Run Keyword If  '${valid_status_codes}' == '${HTTP_OK}'
569    ...  Should Be True  ${cmd_status} == ${True}
570    ...  ELSE  Should Be True  ${cmd_status} == ${False}
571
572Delete Static Name Servers
573    [Documentation]  Delete static name servers.
574
575    Configure Static Name Servers  @{EMPTY}
576
577    # Check if all name servers deleted on BMC.
578    ${nameservers}=  CLI Get Nameservers
579    Should Be Empty  ${nameservers}
580
581DNS Test Setup Execution
582    [Documentation]  Do DNS test setup execution.
583
584    Redfish.Login
585
586    ${original_nameservers}=  Redfish.Get Attribute  ${REDFISH_NW_ETH0_URI}  StaticNameServers
587    Rprint Vars  original_nameservers
588    # Set suite variables to trigger restoration during teardown.
589    Set Suite Variable  ${original_nameservers}
590