Question

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Answer 1

OMA DM standards

The following table shows the OMA DM standards that Windows uses.

OMA DM STANDARDS

General area OMA DM standard that is supported

Data transport and session

Client-initiated remote HTTPS DM session over SSL.

Remote HTTPS DM session over SSL.

Remote DM server initiation notification using WAP Push over Short Message Service (SMS). Not used by enterprise management.

Remote bootstrap by using WAP Push over SMS. Not used by enterprise management.

Bootstrap XML

OMA Client Provisioning XML.

Provisioning XML must be well formed and follow the definition in SyncML Representation Protocol specification.

If an XML element that is not a valid OMA DM command is under SyncBody, the status code 400 is returned for that element.

Note

To represent a Unicode string as a URI, first encode the string as UTF-8. Then encode each of the UTF-8 bytes using URI encoding.

WBXML support

Windows supports sending and receiving SyncML in both XML format and encoded WBXML format. This is configurable by using the DEFAULTENCODING node under the w7 APPLICATION characteristic during enrollment. For more information about WBXML encoding, see section 8 of the SyncML Representation Protocol specification.

Handling of large objects

In Windows 10, version 1511, client support for uploading large objects to the server was added.

OMA DM protocol common elements

Common elements are used by other OMA DM element types. The following table lists the OMA DM common elements used to configure the devices. For more information about OMA DM common elements, see "SyncML Representation Protocol Device Management Usage" (OMA-SyncML-DMRepPro-V1_1_2-20030613-A) available from the OMA website.

OMA DM PROTOCOL COMMON ELEMENTS

Element Description

Chal

Specifies an authentication challenge. The server or client can send a challenge to the other if no credentials or inadequate credentials were given in the original request message.

Cmd

Specifies the name of an OMA DM command referenced in a Status element.

CmdID

Specifies the unique identifier for an OMA DM command.

CmdRef

Specifies the ID of the command for which status or results information is being returned. This element takes the value of the CmdID element of the corresponding request message.

Cred

Specifies the authentication credential for the originator of the message.

Final

Indicates that the current message is the last message in the package.

LocName

Specifies the display name in the Target and Source elements, used for sending a user ID for MD5 authentication.

LocURI

Specifies the address of the target or source location. If the address contains a non-alphanumeric character, it must be properly escaped according to the URL encoding standard.

MsgID

Specifies a unique identifier for an OMA DM session message.

MsgRef

Specifies the ID of the corresponding request message. This element takes the value of the request message MsgID element.

RespURI

Specifies the URI that the recipient must use when sending a response to this message.

SessionID

Specifies the identifier of the OMA DM session associated with the containing message.

Note If the server does not notify the device that it supports a new version (through SyncApplicationVersion node in the DMClient CSP), the desktop client returns the SessionID in integer in decimal format and the mobile device client returns 2 bytes as a string. If the server supports DM session sync version 2.0, which is used in Windows 10, the desktop and mobile device client returns 2 bytes.

Source

Specifies the message source address.

SourceRef

Specifies the source of the corresponding request message. This element takes the value of the request message Source element and is returned in the Status or Results element.

Target

Specifies the address of the node, in the DM Tree, that is the target of the OMA DM command.

TargetRef

Specifies the target address in the corresponding request message. This element takes the value of the request message Target element and is returned in the Status or Results element.

VerDTD

Specifies the major and minor version identifier of the OMA DM representation protocol specification used to represent the message.

VerProto

Specifies the major and minor version identifier of the OMA DM protocol specification used with the message.

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