For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

telcentris_9103's avatar
telcentris_9103
Icon for Nimbostratus rankNimbostratus
Mar 02, 2010

SIP SDP Field Manipulation

Trying to replace owner address in SDP. Little to nothing found on web, Google or F5 sites. Basically want to replace IP address in Owner Address portion of SDP on SIP calls.

 

 

First off - there is no clear defintion of SDP::field. If you test by logging you'll see that SDP:field [owner | owner-adress(yes 1 d instead of 2) | owner-address-type | owner-username] all give you the full Owner/Creator line.

 

 

I've tried everything and every combination of SDP::field replace | remove | insert | regsub but either get errors on iRule submit or TCL error while running.

 

 

This is a tough one.

 

 

Thanks

 

 

Darren

 

yahoo - darren_voip

 

 

 

 

keywords to help searchers: f5, big-ip, SIP, SDP, owner-address, owner address, session description protocol
application delivery
dev
devops
iRules

4 Replies

  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Mar 02, 2010
    Hi Darren,

     

     

    Can you post an anonymized copy of the request that you're trying to rewrite, the iRule you've tried testing and log output from it not working?

     

     

    Thanks,

     

    Aaron
  • telcentris_9103's avatar
    telcentris_9103
    Icon for Nimbostratus rankNimbostratus
    Mar 02, 2010
    Here is everything I have tried along with results. I have replaced ip address with x.x.x.x

     

     

     

    SDP::field insert owner-adress $dd

     

    bad args

     

     

    SDP::field insert "owner-adress" "$dd"

     

    bad args

     

     

    SDP::field insert owner-adress "$dd"

     

    bad args

     

     

    SDP::field remove owner-adress

     

    SDP::field owner-adress "$dd"

     

    TCL error: SDP_OWNER SIP_RESPONSE - expected integer but got owner-adressIllegal argument. Invalid integer value line 1 invoked from within SDP::field remove owner-adress

     

     

    SDP::field remove "owner-adress"

     

    SDP::field owner-adress "$dd"

     

    TCL error: SDP_OWNER SIP_RESPONSE - expected integer but got owner-adressIllegal argument. Invalid integer value line 1 invoked from within SDP::field remove owner-adress

     

     

    SDP::field insert owner-adress [regsub $a $tmp $b]

     

    SDP::field remove "owner-adress" 1

     

    bad args

     

     

    SDP::field owner-adress [regsub $a [SDP::field owner-adress] $b]

     

    TCL error: SDP_OWNER SIP_RESPONSE - expected integer but got Sippy 322524076 1 IN IP4 x.x.x.x Illegal argument. Invalid integer value line 1 invoked from within SDP::field owner-adress [regsub $a [SDP::field owner-adress] $b]

     

     

    SDP::field remove "owner-adress"

     

    TCL error: SDP_OWNER SIP_RESPONSE - expected integer but got owner-adressIllegal argument. Invalid integer value line 1 invoked from within SDP::field remove owner-adress

     

     

    SDP::field owner-adress $dd

     

    TCL error: SDP_OWNER SIP_RESPONSE - expected integer but got Sippy 332352716 1 IN IP4 x.x.x.x Illegal argument. Invalid integer value line 1 invoked from within SDP::field owner-adress $dd