cvs commit: src/sys/compat/ndis kern_ndis.c subr_ndis.c

[Bill Paul]

wpaul       2003/12/12 00:54:48 PST

  FreeBSD src repository

  Modified files:
    sys/compat/ndis      kern_ndis.c subr_ndis.c 
  Log:
  Correct the behavior of ndis_adjust_buflen(): the NDIS spec says
  it's an error to set the buffer bytecount to anything larger than
  the buffer's original allocation size, but anything less than that
  is ok.
  
  Also, in ndis_ptom(), use the same logic: if the bytecount is
  larger than the allocation size, consider the bytecount invalid
  and the allocation size as the packet fragment length (m_len)
  instead of the bytecount.
  
  This corrects a consistency problem between the Broadcom wireless
  driver and some of the ethernet drivers I've tested: the ethernet
  drivers all report the packet frag sizes in buf->nb_bytecount, but
  the Broadcom wireless driver reports them in buf->nb_size. This
  seems like a bug to me, but it clearly must work in Windows, so
  we have to deal with it here too.
  
  Revision  Changes    Path
  1.3       +1 -1      src/sys/compat/ndis/kern_ndis.c
  1.2       +10 -3     src/sys/compat/ndis/subr_ndis.c