• Xin Long's avatar
    sctp: implement ulpevent_data for sctp_stream_interleave · bd4d627d
    Xin Long authored
    ulpevent_data is added as a member of sctp_stream_interleave, used to
    do the most process in ulpq, including to convert data or idata chunk
    to event, reasm them in reasm queue and put them in lobby queue in
    right order, and deliver them up to user sk rx queue.
    
    This procedure is described in section 2.2.3 of RFC8260.
    
    It adds most functions for idata here to do the similar process as
    the old functions for data. But since the details are very different
    between them, the old functions can not be reused for idata.
    
    event->ssn and event->ppid settings are moved to ulpevent_data from
    sctp_ulpevent_make_rcvmsg, so that sctp_ulpevent_make_rcvmsg could
    work for both data and idata.
    
    Note that mid is added in sctp_ulpevent for idata, __packed has to
    be used for defining sctp_ulpevent, or it would exceeds the skb cb
    that saves a sctp_ulpevent variable for ulp layer process.
    Signed-off-by: default avatarXin Long <lucien.xin@gmail.com>
    Acked-by: default avatarMarcelo Ricardo Leitner <marcelo.leitner@gmail.com>
    Acked-by: default avatarNeil Horman <nhorman@tuxdriver.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    bd4d627d
ulpevent.h 5.87 KB