EBCDIC to ASCII conversion

The enconding command exists in the tcl version used in F5 but is not available via iRules as you pointed out.

[root@LABBIGIP1:Active:Changes Pending] images # tclsh
% encoding convertto ebcdic "EXAMPLE"
ÅçÁÔ×ÓÅ

When I try via iRules:

when HTTP_REQUEST {
    log local0. [encoding convertto ebcdic "EXAMPLE"]
}
Nov 11 17:51:20 LABBIGIP1 err tmm2[22248]: 01220001:3: TCL error: /Common/test1 <HTTP_REQUEST> - invalid command name "encoding"     while executing "encoding convertto ebcdic "EXAMPLE""

One possible solution is to try to build the conversion yourself, using string map:

when HTTP_REQUEST {
    log local0. [string map [list "Å" "b"] "Åbc"]
}
Nov 11 18:19:04 LABBIGIP1 info tmm5[22248]: Rule /Common/test1 <HTTP_REQUEST>: bbc

If you can't do the mapping this way, you will have to look mapping using hex or binary.

Leonardo

Thank you for the reply. Your suggestion of using a string map is something I thought about but was hoping there maybe a better way. I did read somewhere that iRulesLX can do it but I'll be honest to say that I would not know where to start with that.

James

Sorry for the delay...

I haven't play whit iRulesLX yet, but I understand the basics of it.

With iRulesLX you have access to any Nodejs package available, so I just did a quick google search:

https://www.npmjs.com/package/nm-ebcdic-converter

To get started with iRule LX:

https://clouddocs.f5.com/training/community/irules/html/class3/class3.html

Good luck :P

I have the same issue. I've tried the string list / string map approach both with a list declaration AND programatically and I can't get past the LTM validation.

The declaration approach and code approach both work fine in a local TCL shell, but blow up the LTM validation step.

Get this: the string list declaration version even blows up the validation step WHEN IT'S COMMENTED OUT.

Error is always the same, regardless of declaration or programmatic version:

01070151:3: Rule [/Common/ISO8583-EXTRACT] error: /Common/ISO8583-EXTRACT:75: error: [braces are required around the expression][proc getEbcdicMap {} {

Surely someone has gotten past this before. But HOW?