Re: [Opensync-users] libsyncml internal error unknown response

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Am Montag, den 10.08.2009, 11:47 +0200 schrieb Michael Bell:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Ulrich Brammer wrote:
> > I compiled libsyncml from svn libsyncml 0.5.x branch on a Debian Lenny
> > system. I tested it with syncml-ds-tool with my Samsung SGH E250i
> > mobile. I got the following error message:
> > ** Message: ERROR: An internal I/O error occured. Unknown response
> > (0x46)
> > 
> > I made traces, see https://libsyncml.opensync.org/ticket/246
> > 
> > I do not have any knowledge about syncml and do not know how to debug
> > further. Is there someone to help?
> 
> Samsung uses 5 different SyncML stacks and no one is fully standard
> compliant. So there are two questions. First does your mobile really
> supports SyncML? Second which implementation is used? Here is a good
> impression:
> 
> http://www.traud.de/gsm/samsung.htm
> 
> Best regards
> 
> Michael

I looked into the details of the problem to sync with a Samsung SGH
E250:
The phone understands the AT+CPROT=0  and answers with the message
CONNECT. The phone also respond to the obex connect command.

The problem is: syncml-ds-tool does not send a initialization package
which contains the target and sourceURI and the authentification. So the
commandline arguments to provide these information are not usable in
this case.

I analyzed the initialization package from the windows software with the
wbxml2xml tool. This is the xml-version of the initialization packet:

<?xml version="1.0"?>
<!DOCTYPE SyncML PUBLIC "-//SYNCML//DTD SyncML 1.1//EN"
"http://www.syncml.org/docs/syncml_represent_v11_20020213.dtd">
<SyncML xmlns="SYNCML:SYNCML1.1">
 <SyncHdr>
  <VerDTD>1.1</VerDTD>
  <VerProto>SyncML/1.1</VerProto>
  <SessionID>0</SessionID>
  <MsgID>1</MsgID>
  <Target>
   <LocURI>AT$CGSN
XXXXXX 01 XXXXXX 0</LocURI>
  </Target>
  <Source>
   <LocURI>Teleca Desktop Synchronisation Server</LocURI>
  </Source>
  <Cred>
   <Meta>
    <Format xmlns="syncml:metinf">b64</Format>
    <Type xmlns="syncml:metinf">syncml:auth-basic</Type>
   </Meta>
   <Data>c2N0czpzY3Rz</Data>
  </Cred>
 </SyncHdr>
 <SyncBody>
  <Alert>
   <CmdID>0</CmdID>
   <Data>206</Data>
   <Item>
    <Target>
     <LocURI>CONTACTS</LocURI>
    </Target>
    <Source>
     <LocURI>CONTACTS</LocURI>
    </Source>
    <Meta>
     <Type xmlns="syncml:metinf">text/x-vcard</Type>
    </Meta>
   </Item>
  </Alert>
  <Final/>
 </SyncBody>
</SyncML>

The phone answers after a obex get command containing
"application/vnd.syncml+wbxml" with:

<?xml version="1.0"?>
<!DOCTYPE SyncML PUBLIC "-//SYNCML//DTD SyncML 1.1//EN"
"http://www.syncml.org/docs/syncml_represent_v11_20020213.dtd">
<SyncML xmlns="SYNCML:SYNCML1.1">
 <SyncHdr>
  <VerDTD>1.1</VerDTD>
  <VerProto>SyncML/1.1</VerProto>
  <SessionID>0</SessionID>
  <MsgID>1</MsgID>
  <Target>
   <LocURI>Teleca Desktop Synchronisation Server</LocURI>
  </Target>
  <Source>
   <LocURI>XXXXXX 01 XXXXXX 0</LocURI>
   <LocName/>
  </Source>
  <Meta>
   <MaxMsgSize xmlns="syncml:metinf">3100</MaxMsgSize>
  </Meta>
 </SyncHdr>
 <SyncBody>
  <Status>
   <CmdID>1</CmdID>
   <MsgRef>1</MsgRef>
   <CmdRef>0</CmdRef>
   <Cmd>SyncHdr</Cmd>
   <TargetRef>AT$CGSN
XXXXXX 01 XXXXXX 0</TargetRef>
   <SourceRef>Teleca Desktop Synchronisation Server</SourceRef>
   <Data>200</Data>
  </Status>
  <Status>
   <CmdID>2</CmdID>
   <MsgRef>1</MsgRef>
   <CmdRef>0</CmdRef>
   <Cmd>Alert</Cmd>
   <Data>200</Data>
  </Status>
  <Put>
   <CmdID>3</CmdID>
   <Meta>
    <Type xmlns="syncml:metinf">application/vnd.syncml-devinf+xml</Type>
   </Meta>
   <Item>
    <Source>
     <LocURI>./devinf11</LocURI>
    </Source>
    <Data>    <DevInf xmlns="syncml:devinf">
     <VerDTD>1.1</VerDTD>
     <Man>Teleca Software Solutions AB</Man>
     <Mod>Teleca SyncML Client</Mod>
     <OEM>Teleca Software Solutions AB</OEM>
     <FwV>1.0</FwV>
     <SwV>1.0</SwV>
     <HwV>1.0</HwV>
     <DevID>XXXXXX 01 XXXXXX 0</DevID>
     <DevTyp>smartphone</DevTyp>
     <SupportNumberOfChanges/>
     <SupportLargeObjs/>
     <DataStore>
      <SourceRef>CONTACTS</SourceRef>
      <MaxGUIDSize>40</MaxGUIDSize>
      <Rx-Pref>
       <CTType>text/x-vcard</CTType>
       <VerCT>2.1</VerCT>
      </Rx-Pref>
      <Tx-Pref>
       <CTType>text/x-vcard</CTType>
       <VerCT>2.1</VerCT>
      </Tx-Pref>
      <DSMem>
       <MaxMem>0</MaxMem>
       <MaxID>1000</MaxID>
      </DSMem>
      <SyncCap>
       <SyncType>1</SyncType>
       <SyncType>2</SyncType>
       <SyncType>7</SyncType>
      </SyncCap>
     </DataStore>
     <CTCap>
      <CTType>text/x-vcard</CTType>
      <PropName>BEGIN</PropName>
      <ValEnum>VCARD</ValEnum>
      <PropName>VERSION</PropName>
      <ValEnum>2.1</ValEnum>
      <PropName>N</PropName>
      <PropName>TEL</PropName>
      <ParamName>WORK</ParamName>
      <ParamName>HOME</ParamName>
      <ParamName>CELL</ParamName>
      <ParamName>FAX</ParamName>
      <ParamName>PAGER</ParamName>
      <ParamName>PREF</ParamName>
      <PropName>EMAIL</PropName>
      <PropName>NOTE</PropName>
      <PropName>END</PropName>
      <ValEnum>VCARD</ValEnum>
     </CTCap>
    </DevInf>
</Data>
   </Item>
  </Put>
  <Alert>
   <CmdID>4</CmdID>
   <Data>200</Data>
   <Item>
    <Target>
     <LocURI>CONTACTS</LocURI>
    </Target>
    <Source>
     <LocURI>CONTACTS</LocURI>
    </Source>
    <Meta>
     <Anchor xmlns="syncml:metinf">
      <Last>1</Last>
      <Next>2</Next>
     </Anchor>
     <MaxObjSize xmlns="syncml:metinf">3000</MaxObjSize>
    </Meta>
   </Item>
  </Alert>
  <Final/>
 </SyncBody>
</SyncML>

Best regards

Ulrich