SCTP::collect

Description

Causes SCTP to start collecting the specified amount of content data. After collecting the data, event CLIENT_DATA will be triggered.

Syntax

SCTP::collect [<length>]

SCTP::collect <length>

  • Causes SCTP to start collecting the specified amount of content data. The parameter specifies the minimum number of bytes to collect.

SCTP::collect

  • When length is not specified, CLIENT_DATA will be triggered for every received packet. To stop collecting data, use SCTP::release.

Examples

when CLIENT_ACCEPTED {
  SCTP::collect 15
}
when CLIENT_DATA {
  if { [SCTP::payload 15] contains "XYZ" } {
     pool xyz_servers
  } else {
     pool web_servers
 }
 SCTP::release
}


when CLIENT_ACCEPTED {
   log local0.debug "CLIENT_ACCEPTED"
   SCTP::collect
}
when CLIENT_DATA {
   set tcplen [SCTP::payload length]
   log local0.debug "CLIENT_DATA ($tcplen)"

   #Assume that you need at least 20 bytes of data for some purpose
   if { $tcplen >= 20 } {
     log local0.debug "Collected at least 20 bytes. releasing"
     #Release collected data
     SCTP::release
     # Collect new data - CLIENT_DATA will be called again
     SCTP::collect
  }
}