SCTP PPID change

[Ahmed Ali]

Hi,

I'm experminting with SCTP support in Erlang. I'm using Solaris 10
with Erlang R13B02. SCTP support is enabled during compiling Erlang.

I'm having problem with changing ppid to 3 (M3UA). The first thing I
did is to add sctp_default_send_param in gen_sctp:connect/4. However,
I got the error below. I've tried to used gen_sctp:send/3 instead of
send/4 as below but I get exactly the same error. I also tried to
troubleshoot the issue and found out the error is generated from
module prim_inet.erl in erts code. My guess is that type_value/3
function checks that the values of the supplied #sctp_sndrcvinfo{} are
valid but appearntly, something is not correct in #sctp_sndrcvinfo{}
record I'm sending.

Without setting PPID, everything works and I could see traffic is sent
and received correctly. Any help is appreciated.

gen_sctp:send(S, #sctp_sndrcvinfo{stream=Stream,
                                      assoc_id=Assoc,
                                      ppid=3}, Data)

{error,
      {type,
          {record,set,
              {sctp_sndrcvinfo,
                  [uint16,0],
                  [],
                  [{bitenumlist,
                       [{unordered,1},{addr_over,2},{abort,4},{eof,8}],
                       uint16},
                   []],
                  [uint32,0],
                  [uint32,0],
                  [uint32,0],
                  [],[],
                  [sctp_assoc_id,0]},
              {sctp_sndrcvinfo,0,undefined,undefined,3,undefined,undefined,
                  undefined,undefined,
                  {sctp_assoc_change,comm_up,0,5,17,1}},
              10
	  }
       }
}

Best regards,

Ahmed