#12144 NORM Not Tri: [CL4]The test /waln twice and screen full in SSID message.

Zarro Boogs per Child bugtracker at laptop.org
Tue Oct 16 03:56:20 EDT 2012


#12144: [CL4]The test /waln twice and screen full in SSID message.
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           Reporter:  garysu               |       Owner:  Quozl        
               Type:  defect               |      Status:  new          
           Priority:  normal               |   Milestone:  Not Triaged  
          Component:  ofw - open firmware  |     Version:  not specified
         Resolution:                       |    Keywords:               
        Next_action:  design               |    Verified:  0            
Deployment_affected:                       |   Blockedby:               
           Blocking:                       |  
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Comment(by Quozl):

 Research notes.

 WLAN Subsystem host driver-firmware interface v14.0 does not appear to
 mention a maximum packet size.

 Review of the Linux kernel driver mwifiex.

 A #define MAX_SCAN_BEACON_BUFFER 8000 exists but is not used.  Several
 defines suggest packet buffers exceeding the 1600 bytes used in Open
 Firmware.

 Handling of corrupt scan results buffer looks good.  The driver reports
 "SCAN_RESP: TLV buffer corrupt\n" if the end of the buffer is reached
 while processing TLVs.  mwifiex_ret_802_11_scan_get_tlv_ptrs.  The driver
 also reports "err: InterpretIE: in processing IE, bytes left < IE
 length\n" if the end of the buffer is reached while processing IEs.
 mwifiex_update_bss_desc_with_ie. "InterpretIE: not enough bytes left\n"
 and "%s: bytes left < IE length\n" may also occur.

-- 
Ticket URL: <http://dev.laptop.org/ticket/12144#comment:9>
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