Different results when querying from Windows and Linux.

[Wayenyin]

For this question, the array is just empty, we will query and get different results by following ways.

ENV

• Win2012 erver: omi-w12r2-01 [10.226.190.74]
• Clients: py64-cent7-t2 [10.226.193.46]

Build

• OMI build: \\redmond\wsscfs\OSTCData\Builds\omi\develop\1.3.0-105\Linux_ULINUX_1.0_x64_64_Release\openssl_1.0.0
• Python script provider: \\ostcnfs-01
  \OSTCDATA\Team\v-zhenpy\providers\OMIScriptProvider-1.1.1-1.ssl_.x64.rpm

Repro Steps

1. Install omi version 1.3.0-105;
2. Install python provider: \\ostcnfs-01\OSTCDATA\Team\v-zhenpy\providers\OMIScriptProvider-1.1.1-1.ssl_.x64.rpm
3. Currently copy customized python provider to /opt/omi/lib
4. Switch to above directory: "cd /opt/omi/lib";
5. Register Python provider and check it: "/opt/omi/bin/omireg --Python xyz_dog"
   root@py64-cent7-t2 # cat /etc/opt/omi/conf/omiregister/root-cimv2/xyz_dog.reg
   # omireg xyz_dog
   INTERPRETER=python2.7
   STARTUP=client.py
   LIBRARY=xyz_dog
   CLASS=XYZ_Dog
6. Execute enumerated command and get result on Linux:” /opt/omi/bin/omicli ei root/cimv2 XYZ_Dog”
   root@py64-cent7-t2 # /opt/omi/bin/omicli ei root/cimv2 XYZ_Dog
   instance of XYZ_Dog
   {
   [Key] Key=1001
   Array2={}
   Array3={10, 20, 30}
   }
7. Execute enumerated command with “none” auth and get result on Linux:” /opt/omi/bin/omicli ei root/cimv2 XYZ_Dog”
   root@py64-cent7-t2 # /opt/omi/bin/omicli ei -u root -p *** --auth Basic --hostname py64-cent7-t2 root/cimv2 XYZ_Dog --encryption none --port 5985
   instance of XYZ_Dog
   {
   Key=1001
   Array3={10, 20, 30}
   }
8. Execute enumerated command with “unencrypted” auth and get result on Win2012:” winrm enumerate http://schemas.microsoft.com/wbem/wscim/1/cim-schema/2/XYZ_Dog?__cimnamespace=root/cimv2 -r:http://py64-cent7-t2:5985 -auth:Basic -u:root -p:*** -unencrypted -encoding:utf-8”
   PS C:\Windows\system32> winrm enumerate http://schemas.microsoft.com/wbem/wscim/1/cim-schema/2/XYZ_Dog?__cimnamespace=root/cimv2 -r:http://py64-cent7-t2:5985 -auth:Basic -u:root -p:*** -unencrypted -encoding:utf-8
   XYZ_Dog
   Key = 1001
   Array1 = null
   Array3 = 10, 20, 30

Expectly: The results should be same.
Actual: The results are different by above ways.

[palladia]

Eric, could you please investigate this?

[EMumau]

I looked into this.

The XYZ_Dog provider appears to add a test case that doesn't exist in OMI.

The XYZ_Dog sample provider returns an empty array. The array is not NULL. It is deliberately an array with zero items.

The omicli demonstrates that the omiserver is handling this correctly. It appears that whatever additional serialization is occurring because of the --auth parameter is handling empty arrays differently.

I am passing to Bruce because he implemented the auth layer.

[palladia]

Jumping, please investigate this. If you need authentication help, please contact Bruce.

[JumpingYang001]

Investigating.

[sarojcare]

Jumping will further investigate the issue and update the findings accordingly.

[JumpingYang001]

we tried c provider https://github.com/Microsoft/omi/blob/master/Unix/samples/Providers/Dog/schema.mof and shows same result:

root@ost64-ora7-01  # /opt/omi/bin/omicli ei root/cimv2 XYZ_Dog
instance of XYZ_Dog
{
    [Key] Key=1001
    Array2={}
    Array3={10, 20, 30}
} 
root@ost64-ora7-01  # /opt/omi/bin/omicli ei -u root -p *** --auth Basic --hostname *** root/cimv2 XYZ_Dog --encryption none --port 5985
instance of XYZ_Dog
{
    Key=1001
    Array3={10, 20, 30}
} 
PS C:\Windows\system32> winrm enumerate http://schemas.microsoft.com/wbem/wscim/1/cim-schema/2/XYZ_Dog?__cimnamespace=ro
ot/cimv2 -r:http://ost64-ora7-01:5985 -auth:Basic -u:root -p:*** -unencrypted -encoding:utf-8
XYZ_Dog
    Key = 1001
    Array1 = null
    Array3 = 10, 20, 30

just want to double check it is really on omi, and I will continue to investigate the --auth issue tomorrow.