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wlepkin_98758's avatar
wlepkin_98758
Icon for Nimbostratus rankNimbostratus
Jan 14, 2012

Compound conditional expression

Hi, I'm really struggling with what ought to be a pretty simple compound expression. I want to do something like this:

 

 

if { ( $a contains "aaa" ) and (( $b equals "123" ) or ( $b equals "456" )) } then { do something }

 

 

but I just can't figure out the syntax so that the iRule gets accepted without error and does what I want. Parentheses like I have above don't seem to work.

 

 

Thanks for whatever help someone can provide.

 

 

Wayne

 

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  • nitass's avatar
    nitass
    Icon for Employee rankEmployee
    Jan 14, 2012
    what error did you get? 

    [root@ve1023:Active] config  b rule myrule list
rule myrule {
   when RULE_INIT  {
        set a "aaa"
        set b "123"

        if { ( $a contains "aaa" ) and (( $b equals "123" ) or ( $b equals "456" )) } then { log local0. "gotcha" }
}
}
[root@ve1023:Active] config  tail /var/log/ltm
Jan 13 23:17:54 local/ve1023 err mcpd[25539]: 01020066:3: The requested rule (myrule) already exists in partition Common.
Jan 13 23:17:54 local/tmm info tmm[26866]: Rule myrule RULE_INIT: gotcha
  • wlepkin_98758's avatar
    wlepkin_98758
    Icon for Nimbostratus rankNimbostratus
    Jan 14, 2012
    Huh, whaddya know. I had simplified the actual rule I was having problems with, for purposes of the forum post. When I actually tried the simplified rule it worked, just as it did for you above. I've since modified it to be more like what I really want to do, and it still works, so the error I was getting before was apparently due to some other part of the rule, and I was just misinterpreting the error to be related to the compound condition.

     

     

    Thanks much for your help!