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Stewart_Mann_11's avatar
Stewart_Mann_11
Historic F5 Account
Sep 01, 2005

Accumulate function

Hi

 

 

I have a v4.5 iRule using 'accumulate' that needs

 

to be upgraded to v9.1.

 

 

this is the rule:

 

 

}

 

 

else if (http_content_collected < 20) {

 

 

log "accumulating..."

 

 

accumulate

 

 

}

 

 

 

Is there an equivilent function in v9?

 

 

Thanks
application delivery
dev
devops
iRules

2 Replies

  • unRuleY_95363's avatar
    unRuleY_95363
    Historic F5 Account
    Sep 02, 2005
    Since v9 is event driven the new equivalent is to simply reissue another TCP::collect in the CLIENT_DATA event.

    
when CLIENT_ACCEPTED {
   TCP::collect
}
when CLIENT_DATA {
   if { [TCP::payload length] < 20 } {
      TCP::collect
   } else {
      ...
   }
}

    You can equivalently tell it to collect at least 20 bytes to begin with:

    
when CLIENT_ACCEPTED {
   TCP::collect 20
}
when CLIENT_DATA {
   if { [TCP::payload] contains "foo" } {
      ...
   }
}

    Hope this helps!
  • unRuleY_95363's avatar
    unRuleY_95363
    Historic F5 Account
    Sep 02, 2005
    Oh, sorry, I just realized your example was for referencing http content. The same rules apply, just use the "HTTP::" equivalent commands: HTTP::collect and HTTP::payload and the HTTP_REQUEST_DATA event.

    
when HTTP_REQUEST {
   HTTP::collect
}
when HTTP_REQUEST_DATA {
   if { [HTTP::payload length] < 20 } {
      HTTP::collect
   } else {
      ...
   }
}